Patent Application
20250102157
The present disclosure claims priority from Chinese patent application No. 202311245912.0, filed on Sep. 25, 2023, the entire content of which is incorporated herein by reference.
The present application relates to the field of air conditioning, and specifically relates to an air conditioner outdoor unit and an HVAC apparatus.
This section only provides background information related to the present disclosure, which is not necessarily the prior art.
In an air conditioner outdoor unit, aerodynamic noise is one of the main sources of noise during the operation of the whole machine. Current air conditioner outdoor units have to ensure the normal operating performance of the whole machine within a limited space, and the operating performance of fan blades is closely related to the performance of the whole machine. During the operation of the fan blades, the noise will also increase at the same time of increasing the air volume, thus affecting the comfort of users.
Embodiments of the present application are to at least solve the problem of aerodynamic noise easily generated by a fan of the air conditioner outdoor unit, and this object is achieved through the following embodiments.
A first aspect of the present application provides an air conditioner outdoor unit, which includes:
In the air conditioner outdoor unit of the present application, the axial flow fan and the heat exchanger assembly are arranged inside the cabinet, and a positional relationship between the axial flow fan and the heat exchanger assembly is defined to adjust a diameter of the axial flow fan, to improve the working efficiency of the axial flow fan, and reduce aerodynamic noise. In one embodiment, the first portion and the second portion of the heat exchanger assembly are arranged to extended along the inner side faces of the cabinet, and the first portion and the second portion both have an overlapping region with the projection of the axial flow fan in the flow direction of airflow. This arrangement can increase the diameter of the axial flow fan within the limited space of the cabinet, to increase the working area of the axial flow fan, and within the limited space of the cabinet, the diameter of the axial flow fan is increased as much as possible, which is also advantageous for reducing aerodynamic noise.
In addition, the air conditioner outdoor unit according to the present application may also have the following additional features.
In some embodiments of the present application, the side wall of the cabinet further includes a third inner side face and a fourth inner side face arranged opposite to each other, and the third inner side face and the fourth inner side face are respectively connected between the first inner side face and the second inner side face; and
In some embodiments of the present application, the first portion, the second portion, the third portion and the fourth portion enclose a heat exchange channel, which is located in the airflow channel.
In some embodiments of the present application, the air outlet is arranged at the top of the cabinet, and the air inlet is arranged on at least one of the first inner side face, the second inner side face, the third inner side face and the fourth inner side face; and/or
In some embodiments of the present application, the overlapping region is circular-ring like, or part of the overlapping region is of an arc-shaped structure.
In some embodiments of the present application, the air conditioner outdoor unit further includes an electric control box assembly, which is arranged inside the cabinet and encloses the heat exchange channel together with the heat exchanger assembly; and when viewed in the extending direction of the rotational axis, a projection of the electric control box assembly overlaps with a projection of the rotational plane.
In some embodiments of the present application, the electric control box assembly has a partition, a circuit board, and a radiator; the partition and the heat exchanger assembly enclose at least part of the heat exchange channel; the circuit board is installed on an outer plate surface of the partition that faces away from the heat exchange channel, and the radiator is located inside the heat exchange channel and installed on an inner plate surface of the partition that faces the heat exchange channel; an avoidance hole on the partition allows the radiator to be thermally conducted to the circuit board; an airflow in the heat exchange channel passes through the radiator, and when viewed in the extending direction of the rotational axis, the rotational plane has an overlapping part with the radiator.
In some embodiments of the present application, the axial flow fan is spaced apart from the electric control box assembly in the extending direction of the rotational axis.
In some embodiments of the present application, the air conditioner outdoor unit further includes an air guide ring, which is arranged inside the cabinet; and
In some embodiments of the present application, the flow guide channel includes an inlet section, an outlet section, and a middle section; the middle section is arranged between the inlet section and the outlet section, and is configured into a straight cylinder shape; and
The air conditioner outdoor unit is configured as a fan unit and a heat exchanger unit, and the cabinet includes a first housing and a second housing that are detachably connected; the fan unit includes the first housing and the axial flow fan arranged inside the first housing, and the heat exchanger unit includes the second housing and the heat exchanger assembly arranged inside the second housing.
In some embodiments of the present application, the first housing includes a first side wall portion arranged around the rotational axis, which is configured in a cylindrical configuration with upper and lower openings along the rotational axis; the upper opening of the first side wall portion is configured as the air outlet, and the lower opening of the first side wall portion is configured to receive air after heat exchange with the heat exchanger assembly; the fan unit includes a grille, which is installed at the upper opening of the first side wall portion, a back side of the grille faces an internal space defined by the first side wall portion, and the axial flow fan is installed on a lower side of the grille.
In some embodiments of the present application, the first side wall portion includes multiple support portions, which are arranged at the upper opening of the first side wall portion, and which are configured to jointly support the grille; and
In some embodiments of the present application, the fan unit includes an air guide ring, an inner wall of the air guide ring encloses an air guide channel with upper and lower openings, and an edge of the upper opening of the air guide ring is formed with multiple upper installation portions; and
In some embodiments of the present application, the second housing includes a second side wall portion arranged around the rotational axis, which is configured in a cylindrical configuration with upper and lower openings along the rotational axis; a bottom wall is installed at the lower opening of the second side wall portion, and the bottom wall supports the heat exchanger assembly; the upper opening of the second side wall portion corresponds to the lower opening of the first side wall portion.
In some embodiments of the present application, the second side wall portion has a ventilation side wall, which surrounds an outer side of the heat exchanger assembly and which has multiple ventilation holes corresponding to the heat exchanger assembly; the fan unit drives external air to pass through the multiple ventilation holes and exchange heat with the heat exchanger assembly, and the air after heat exchange enters the fan unit from the heat exchanger unit and flows out from the air outlet.
In some embodiments of the present application, the air conditioner outdoor unit further includes an electric control box assembly, which includes a partition, a circuit board installed on the partition, and a cover connected to the partition and covering the circuit board; and
In some embodiments of the present application, a housing wall of the first housing is recessed toward the internal cylindrical space to form multiple groove portions, each of the groove portions having a groove bottom wall along the recessed direction, a first groove wall connected to a lower side of the groove bottom wall, and a second groove wall connected to an upper side of the groove bottom wall; and
In some embodiments of the present application, a lower edge of the first housing is provided with multiple first fixing holes, the upper end of the second housing is provided with multiple second fixing holes, and the multiple first fixing holes are respectively fixed to the multiple second fixing holes in a one-to-one correspondence.
In some embodiments of the present application, the fan unit includes an air guide ring; an inner wall of the air guide ring encloses an air guide channel with upper and lower openings, and an outer side of the air guide ring is provided with multiple side installation portions; the groove bottom wall of each of the groove portions is correspondingly provided with at least one installation hole, and the multiple side installation portions are respectively fixed to the multiple installation holes in a one-to-one correspondence.
A second aspect of the present application provides an HVAC apparatus, which includes the air conditioner outdoor unit provided in the first aspect of the present application and an indoor unit, and the indoor unit and the air conditioner outdoor unit are communicated through a gas pipe and a liquid pipe to form a refrigerant circulation system; and
The accompanying drawings are only used for the purpose of illustrating embodiments, and should not be considered as a limitation to the present application. Moreover, throughout the drawings, the same reference signs are used to denote the same components. In the drawings:
to an embodiment of the present application;
Hereinafter, exemplary embodiments of the present disclosure will be described in greater detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments set forth herein.
It should be understood that the terms used herein are only for the purpose of describing specific exemplary embodiments, and are not intended to be limitative. Unless clearly indicated otherwise in the context, singular forms “a”, “an”, and “said” as used herein may also mean that plural forms are included. Terms “include”, “comprise”, “contain” and “have” are inclusive, and therefore indicate the existence of the stated features, steps, operations, elements and/or components, but do not exclude the existence or addition of one or more other features, steps, operations, elements, components, and/or combinations thereof. The method steps, processes, and operations described herein should not be interpreted as requiring them to be executed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.
Although terms “first”, “second”, “third” and the like may be used herein to describe multiple elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless clearly indicated in the context, terms such as “first”, “second” and other numerical terms do not imply an order or sequence when they are used herein. Therefore, the first element, component, region, layer or section discussed below may be referred to as a second element, component, region, layer or section without departing from the teachings of the exemplary embodiments.
For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the drawings. These relative terms are, for example, “inner”, “outer”, “inside”, “outside”, “below”, “under”, “above”, “over”, etc. These spatial relative terms are intended to include different orientations of the device in use or in operation in addition to the orientation depicted in the drawings. For example, if the device in the figure is turned over, then elements described as “below other elements or features” or “under other elements or features” will be oriented “above the other elements or features” or “over the other elements or features”. Thus, the exemplary term “below” may include orientations of both above and below. The device can be otherwise oriented (rotated by 90 degrees or in other directions), and the spatial relationship descriptors used herein will be explained accordingly.
Referring to
The heat exchanger assembly 130 has the following arrangement: the heat exchanger assembly 130 includes a first portion 131 and a second portion 132, and a side wall of the cabinet 110 has at least a first inner side face 114 and a second inner side face 115 arranged opposite to each other. The first portion 131 is connected to the first inner side face 114, and the second portion 132 is connected to the second inner side face 115. This arrangement allows the heat exchanger assembly 130 to extend along the side wall of the cabinet 110. The first portion is arranged to extend along the first inner side face, and the second portion is arranged to extend along the second inner side face. The first portion can be connected to the first inner side face through a bottom wall of the cabinet, and the second portion can be connected to the second inner side face through the bottom wall of the cabinet.
A rotational plane is defined by the axial flow fan 120, which is a plane swept by 360° around the rotational axis 121 by a radius axis between the outmost point of a blade of the axial flow fan 120 and the rotational axis 121; and when viewed in an extending direction of the rotational axis 121, the rotational plane has an overlapping part with both the first portion 131 and the second portion 132.
In the air conditioner outdoor unit 100 of the present application, by defining a projection relationship between the axial flow fan 120 and the heat exchanger assembly 130, the axial flow fan 120 can have a larger radial diameter inside the cabinet 110, and the axial flow fan 120 enables a larger ventilation area to be formed after rotation, thus improving the ventilation volume of the air conditioner outdoor unit 100 and reducing aerodynamic noise.
For the air conditioner outdoor unit of the present application, the applicant explains as follows: in order to increase the ventilation volume inside the cabinet 110, the common practice in this field is to increase the rotational speed of the fan; however, the problem caused by increasing the rotational speed of the fan is the generation of noise, including aerodynamic noise, vortex noise, and noise formed by the interference of airflow with the inner wall of the cabinet. In the air conditioner outdoor unit 100 provided by the present application, based on the above problem and considering the layout structure inside the air conditioner outdoor unit 100, by defining the positional relationship between the axial flow fan 120 and the heat exchanger assembly 130, the diameter of the axial flow fan 120 is made as large as possible within the limited space of the cabinet 110, and the ventilation volume inside the cabinet 110 is increased. It should be emphasized that the air conditioner outdoor unit 100 of the present application is suitable for models in which at least part of the heat exchanger assembly 130 is arranged to extend along the inner wall of the cabinet 110, and is also suitable for models with top air outflow and side air inflow.
In the air conditioner outdoor unit 100 of the present application, the diameter of the axial flow fan 120 is made as large as possible inside the cabinet 110, which can reduce the noise caused by increasing the rotational speed of the axial flow fan 120, as well as the noise generated by the collision of the vortices formed on fan blades with the inner wall of the cabinet 110 after vortex detachment. Therefore, by defining the positional relationship between the axial flow fan 120 and the heat exchanger assembly 130, the air conditioner outdoor unit 100 of the present application can make reasonable use of the effective space inside the cabinet 110 while reducing the generation of various different noise. The reasonable use of the effective space inside the cabinet 110 means that the heat exchanger assembly 130 is arranged to extend along the inner wall of the cabinet 110, and there is more space between the first inner side face 114 and the second inner side face 115 arranged opposite to each other to place components such as compressor assembly or electronic expansion valves, integrated pipes, or dispersed pipes.
In the air conditioner outdoor unit 100 of the present application, the radial diameter of the axial flow fan 120 is increased within the limited space of the cabinet 110, and the working area of the axial flow fan 120 can be increased. When the same ventilation volume is required, there is no need to excessively increase the rotational speed of the axial flow fan, and the aerodynamic noise can also be reduced accordingly. The axial flow fan 120 has a larger radial diameter, and overlaps with the projection of partial region of the heat exchanger assembly 130 in the direction of the rotational axis 121 of the axial flow fan 120. The airflow generated by the axial flow fan 120 after rotation can directly act on the heat exchanger assembly 130. At the same rotational speed, the airflow generated by the axial flow fan 120 can transfer more heat, improving the heat exchange efficiency of the heat exchanger assembly 130.
It should be noted that the structural form of the cabinet 110 of the air conditioner outdoor unit 100 can be diverse, such as having a cylindrical, polygonal, elliptical cylinder shape, etc. In the air conditioner outdoor unit 100 of the present application, by defining the projection relationship between the axial flow fan 120 and the heat exchanger assembly 130, the axial flow fan 120 can have high working efficiency, and the aerodynamic noise can be reduced. Since in the air conditioner outdoor unit 100, increasing the ventilation volume usually requires increasing the rotational speed of the axial flow fan 120, the airflow will collide with the components inside the cabinet 110 at the high rotational speed of the axial flow fan 120 to generate noise, and the airflow itself will also form pulsating pressure in different regions inside the cabinet 110, forming the aerodynamic noise. In the air conditioner outdoor unit 100 of the present application, the axial flow fan 120 has a relatively large radial diameter, and a consistent airflow pressure is formed within the effective accommodation space of the cabinet 110, thus preventing airflow noise caused by pressure pulsation of the airflow. At the same time, the axial flow fan 120 can also have a larger ventilation volume without excessively increasing the rotational speed of the axial flow fan 120, and the airflow will not produce more aerodynamic noise. Therefore, the air conditioner outdoor unit 100 of the present application has noise reduction function.
In an embodiment of the present application, the side wall of the cabinet 110 further includes a third inner side face 116 and a fourth inner side face 117 that are arranged opposite to each other. Among the first inner side face 114, the second inner side face 115, the third inner side face 116 and the fourth inner side face 117 inside the cabinet 110, the first inner side face 114 and the third inner side face 116 are arranged at an angle.
The heat exchanger assembly 130 includes a third portion 133 and a fourth portion 134. The third portion 133 is connected to the third inner side face 116, and the fourth portion 134 is connected to the fourth inner side face 117. In the airflow channel 113, along the direction of the rotational axis 121 of the axial flow fan 120, a projection 135 is formed on the heat exchanger assembly by the rotational plane of the axial flow fan, and this projection has an overlapping region 136 with both the third portion 133 and the fourth portion 134. In this embodiment, since the first portion 131, the second portion 132, the third portion 133 and the fourth portion 134 of the heat exchanger assembly 130 are all connected to the inner side faces of the cabinet 110, the axial flow fan 120 at least has a projection with both the first portion 131 and the third portion 133 of the heat exchanger assembly 130 that are arranged at an angle. Within the limited accommodation space inside the cabinet 110, the radial diameter of the axial flow fan 120 is relatively large, the working area is relatively large, and the axial flow fan 120 has high working efficiency, and the airflow noise can be reduced.
The third portion is arranged to extend along the third inner side face, and can be connected to the third inner side face through the bottom wall of the cabinet. The fourth portion is arranged to extend along the fourth inner side face, and can be connected to the fourth inner side face through the bottom wall of the cabinet.
For the air conditioner outdoor unit 100 of this embodiment, with regard to the first portion 131, the second portion 132, the third portion 133 and the fourth portion 134 of the heat exchanger assembly 130, the following description is given: the heat exchanger assembly 130 of the air conditioner outdoor unit 100 includes multiple refrigerant medium pipes, which can be integrated into an integral structure to form a structure with a wall surface. The first portion 131 of the heat exchanger assembly 130 can be arranged to extend along the first inner side face 114, the second portion 132 can be arranged to extend along the second inner side face 115, the third portion 133 can be arranged to extend along the third inner side face 116, and the fourth portion 134 can be arranged to extend along the fourth inner side face 117. The first portion 131, the second portion 132, the third portion 133 and the fourth portion 134 can be configured as heat exchangers respectively, or they can be connected to each other to form a heat exchanger.
In the air conditioner outdoor unit 100 of this embodiment, the first inner side face 114 and the fourth inner side face 117 can also be set at an angle, or the second inner side face and the third inner side face 116 can be set at an angle, or the second inner side face 115 and the fourth inner side face 117 can be set at an angle. In the air conditioner outdoor unit 100 of this embodiment, the diameter of the axial flow fan 120 can extend to the maximum at least in the space between a set of side walls arranged opposite to each other inside the cabinet 110. When the diameter of the axial flow fan 120 is within the space between multiple sets of side walls arranged opposite to each other, the diameter of the axial flow fan 120 can each extend to the maximum position, and the axial flow fan 120 can form a larger working area inside the cabinet 110 and have higher working efficiency.
In some embodiments of the present application, the first inner side face 114, the second inner side face 115, the third inner side face 116 and the fourth inner side face 117 of the cabinet 110 of the air conditioner outdoor unit 100 are sequentially arranged adjacent to each other. The first portion 131, the second portion 132, the third portion 133 and the fourth portion 134 of the heat exchanger assembly 130 enclose a heat exchange channel 137, which is communicated with the airflow channel 113. In the air conditioner outdoor unit 100 of this embodiment, the heat exchange channel 137 is enclosed by the heat exchanger assembly 130 in the cabinet 110; in the cross section of the cabinet 110 that is perpendicular to the rotational axis 121 of the axial flow fan 120, the area of the heat exchange channel 137 can occupy a larger proportion of the area of the cabinet 110. When the cross section of the cabinet 110 is of a quadrilateral structure, the area of the heat exchange channel 137 can be approximately equal or close to the area of the cross section of the cabinet 110. Therefore, within the above cross section, the region formed by the axial flow fan 120 inside the cabinet 110 after rotation occupies a larger proportion of the cross-sectional area, resulting in higher working efficiency of the axial flow fan 120 and higher ventilation efficiency inside the cabinet 110.
In some embodiments of the present application, the air outlet 111 is arranged at the top of the cabinet 110, and the air inlet 112 is arranged at least on the first inner side face 114, the second inner side face 115, the third inner side face 116, and the fourth inner side face 117; in the air conditioner outdoor unit 100 of this embodiment, the air outlet 111 is arranged at the top of the cabinet 110, and the air inlet 112 is arranged at the side wall of the cabinet 110; especially, when the first inner side face 114, the second inner side face 115, the third inner side face 116 and the fourth inner side face 117 of the cabinet 110 are each provided with the air inlet 112, air can be supplied into the cabinet 110 from multiple side walls. Under the action of the axial flow fan 120, the airflow is discharged from the top of the cabinet 110. The axial flow fan 120 can also be arranged at a position near the air outlet 111 of the cabinet 110.
In the air conditioner outdoor unit 100 of this embodiment, at the position of the air outlet 111 of the cabinet 110, the axial flow fan 120 plays a pumping role after rotation, continuously drawing external air into the cabinet 110. Due to the projection interference region between the axial flow fan 120 and the heat exchanger assembly 130 extending along the side wall of the cabinet 110, the circular region formed by the axial flow fan 120 after rotation occupies a larger proportion of the area of the cross section of the cabinet 110. The cross section of the cabinet 110 refers to the cross section of the cabinet 110 that is perpendicular to the direction of the rotational axis 121 of the axial flow fan 120. Therefore, in the airflow channel 113 formed between the air inlet 112 and the air outlet 111 of the cabinet 110, the working area of the axial flow fan 120 is larger, and the airflow is less prone to pressure pulsation during circulation, reducing the aerodynamic noise. For reducing the aerodynamic noise of the air conditioner outdoor unit 100, the above ventilation method has significant effects.
Referring to
The cabinet 110 can also be configured into an elliptical cylinder shape, and the heat exchanger assembly 130 is arranged around the side wall of the cabinet 110. The elliptical-cylinder shaped heat exchanger assembly 130 interferes with the projection of the axial flow fan 120 in the direction of the rotational axis 121 of the axial flow fan 120. The overlapping region 136 of the projection is divided into two parts, one of which has an arc-shaped projection region and the other of which has an arc-shaped projection region. The air conditioner outdoor unit of the present application is suitable for the structural form of the cabinet with top air outflow and side air inflow.
Referring to
In some embodiments of the present application, the electric control box assembly 140 has a partition 142, a circuit board 143, and a radiator. The partition 142 and the heat exchanger assembly 130 enclose at least part of the heat exchange channel 137. The circuit board 143 is installed on an outer plate surface of the partition 142 that faces away from the heat exchange channel 137, and the radiator is located inside the heat exchange channel 137 and installed on an inner plate surface of the partition 142 that faces the heat exchange channel 137. An avoidance hole on the partition 142 allows the radiator to be thermally conducted to the circuit board 143. The airflow in the heat exchange channel 137 passes through the radiator, and when viewed in the extending direction of the rotational axis 121, the rotational plane overlaps with the radiator.
In some embodiments of the present application, the axial flow fan 120 is spaced apart from the electric control box assembly 140. In the air conditioner outdoor unit 100 of this embodiment, the electric control box assembly 140 can be arranged in a region below the axial flow fan 120, and is separated from the axial flow fan 120 by a certain distance. The airflow can pass through partial region of the electric control box assembly 140, thus improving the heat dissipation efficiency of the electric control box assembly 140.
In the embodiments provided by the present application, the projection of the axial flow fan 120, the projection of the electric control box assembly 140 and the projection of the heat exchanger assembly 130 are all projections formed in the direction of the rotational axis 121 of the axial flow fan 120 in a plane perpendicular to the rotational axis 121 of the axial flow fan 120 by the axial flow fan 120, the electric control box assembly 140 and the heat exchanger assembly 130 respectively. The axial flow fan 120 can rotate, and a rotational plane is defined by the axial flow fan 120, which is a plane swept by 360° around the rotational axis 121 by a radius axis between the outmost point of the blade of the axial flow fan 120 and the rotational axis 121; and when viewed in the extending direction of the rotational axis 121, the rotational plane has an overlapping part with both the first portion 131 and the second portion 132.
Referring to
Referring to
With reference to
It can be understood that the first housing 11 is detachably connected to the second housing 21, including but not limited to snap-fit connection, slot connection, bolt fixation, and other detachable connection methods. The first housing 11 can have a cylindrical or square cylinder shape, with open upper and lower ends to facilitate communication with the second housing 21 and discharge internal airflow. The axial flow fan can be installed inside the first housing 11 by snap-fit or bracket fixation. The second housing 21 can also have a cylindrical or square cylinder shape, with open upper and lower ends to facilitate docking with and internal communication with the first housing 11. The heat exchanger assembly 130 can be installed inside the second housing 21 by bracket fixation. The axial flow fan can draw external air into the second housing 21 to exchange heat with the heat exchanger assembly 130 and other components before being discharged from a top end of the first housing 11.
With reference to
It can be understood that the first housing 11 has a cylindrical structure, and the first side wall portion 12 can be a cylindrical structure, or a square cylinder structure formed by connecting four first side plates in sequence. The first side wall portion 12 have upper and lower openings at both ends. The upper opening of the first side wall portion 12 is used to discharge the exhaust gas of the axial flow fan to the outside of the first housing 11. The lower opening of the first side wall portion 12 is used to dock and communicate with the second housing 21 to receive the airflow after heat exchange with the heat exchanger assembly 130 inside the second housing 21. The grille 15 is also provided in the upper opening of the first housing 11, and the shape of the grille 15 is adapted to the upper opening. The grille 15 has multiple air holes, and the airflow driven by the axial flow fan can be discharged from the grille 15 located downstream of the axial flow fan to the outside. The grille 15 also has the function of protecting the interior of the cabinet 110. In addition, an installation plate 151 is arranged in the middle of the grille 15, and the axial center of the axial flow fan can be fixed to the installation plate 151 through a bolt to achieve coaxial connection between the axial flow fan and the grille 15.
With reference to
The multiple support portions 16 are located in a same first plane, which is perpendicular to the rotational axis; the first plane is lower than an upper edge of the first side wall portion 12 to form a concave space 16a, and the grille 15 is accommodated in the concave space 16a and fixedly installed on the multiple support portions 16.
It can be understood that the support portions 16 are arranged at an axial end of the first side wall portion 12 that is away from the second housing 21, and the support portions 16 may be formed in the following way: part of the inner wall of the first side wall portion 12 extends inward along the radial direction of the axial flow fan to form the support portions 16. The support portion 16 has a support surface 27 on the side facing away from the second housing 21. The support surface 27 can be rectangular for easy processing, or curved to optimize the structure of the air duct. Multiple support portions 16 can be arranged on an inner side of the first side wall portion 12 in a circumferential direction of the axial flow fan. For example, when the first side wall portion 12 is a square cylinder structure, a support portion 16 can be arranged at each of four corners of the first side wall portion 12 to support the grille 15. At the same time, the support portions 16 can also strengthen the overall strength of the first housing 11, making it less prone to deformation. The connection stability between the support portions 16 and the grille 15 can also be improved by setting bolts or buckles. In addition, an inner edge of each supporting portion 16 and an inner edge of the first side wall portion 12 form a roughly circular air passing hole for rapid airflow.
With reference to
The first side wall portion 12 includes multiple support portions 16, which are arranged at the upper opening of the first side wall portion 12. The lower sides of the multiple support portions 16 are correspondingly fixed to the multiple upper installation portions 155 respectively, and the upper sides of the multiple support portions 16 are configured to jointly support the grille 15.
It can be understood that the air guide ring 150 can be arranged in the space defined by the first side wall portion 12 to guide the airflow generated by the axial flow fan and improve the efficiency of airflow delivery. The air guide ring 150 can be cylindrical and surround an outer peripheral side of the axial flow fan. The air guide ring 150 defines an air guide channel with upper and lower openings. The upper opening of the air guide ring 150 corresponds to the grille 15, and the lower opening of the air guide ring 150 is communicated with the upper opening of the second housing 21. The multiple upper installation portions 155 provided on the edge of the upper opening of the air guide ring 150 are connected to the lower sides of the support portions 16 of the first side wall portion 12, and the air guide ring 150 can be fixed. The upper installation portion 155 can be a flange structure with an installation hole 157; for example, the upper side of the air guide ring 150 extends radially outward to form a flange, and the flange is provided with an installation hole 157. The installation hole 157 is fixed to a bolt hole on the support portion 16 by a bolt. Multiple installation portions can be arranged at intervals in the circumferential direction of the axial flow fan; for example, multiple installation portions are arranged corresponding to the multiple support portions 16 arranged at the corners. In addition, multiple reinforcing ribs can also be provided on the flange to enhance the structural strength at this position. Moreover, the upper sides of the support portions 16 are used to fix the grille 15, and the grille 15 can be fixed by the same bolt used for installing the air guide ring 150, making the structure more compact.
With reference to
It can be understood that the second housing 21 can be a cylindrical or square cylinder structure. The second housing 21 is composed of the second side wall portion 22 arranged around the rotational axis 121. The second side wall portion 22 can be composed of multiple second side plates connected in sequence around the rotational axis 121. A space for accommodating the heat exchanger assembly 130 is defined between the multiple second side plates. The upper opening of the second side wall portion 22 is communicated with the lower opening of the first side wall portion 12, and the axial flow fan can extract the airflow after heat exchange in the second housing 21. A bottom wall is arranged in the lower opening of the second side wall portion 22, and the shape of the bottom wall is adapted to the lower opening. The bottom wall can have a flat plate structure. Structures such as a bracket or buckle can be arranged on the side of the bottom wall that faces the first housing 11 to fix the heat exchanger assembly 130.
With reference to
It can be understood that the ventilation side wall 23 can be arranged on the second side wall portion 22 corresponding to the position of the heat exchanger assembly 130. The ventilation side wall 23 has multiple ventilation holes 24, which can be rectangular or circular and arranged in an array to improve the ventilation effect. The fan unit 101 can drive external air to enter the cabinet 110 through the ventilation holes 24 on the ventilation side wall 23, and exchange heat with the heat exchanger assembly 130 before being discharged from the air outlet 111 to achieve a heat exchange function.
With reference to
The ventilation side wall 23 has a rectangular shape and forms an opening 25 at the corner. The partition covers the opening 25 of the ventilation side wall 23. The cover 144 and the ventilation side wall 23 are configured into a complete rectangular shape.
It can be understood that the electric control box assembly 140 is a control part for the air conditioner outdoor unit 100. The circuit board 143 of the electric control box assembly 140 is fixed on the partition 142, and the cover 144 is also provided to protect the circuit board 143. The cover 144 covers the circuit board 143 and is fixed on the partition 142. The ventilation side wall 23 can have a square cylinder shape, with an opening formed at the corner for installing electric control units. The partition plate 142 and the ventilation side wall 23 can be fixed by snap-fit connection or bolt connection. The cover 144 covers the outer side of the circuit board 143 and matches an outer contour of the ventilation side wall 23 to ensure the continuity and integrity of the outer contour of the second housing 21.
With reference to
The first housing 11 is installed onto the second housing 21 from top to bottom, with the upper end of the second housing 21 inserted into the lower opening of the first housing 11 and the upper end of the second housing 21 configured as a bearing surface to bear the first groove walls 131 of the multiple groove portions 13.
It can be understood that part of the housing wall at the bottom end of the first housing 11 is recessed inward in the radial direction of the axial flow fan to form the groove portion 13. The groove portion 13 can be arranged in an annular shape in the circumferential direction of the axial flow fan, or multiple groove portions 13 can be arranged at intervals in the circumferential direction of the axial flow fan. The first groove wall 131 and the second groove wall 132 of the groove portion 13 are arranged opposite to each other and parallel to the radial direction of the axial flow fan. The first groove wall 131 and the second groove wall 132 are connected by the groove bottom wall 133. The upper end of the second housing 21 can be bent radially inward to form a bearing portion, which has a bearing surface facing the first housing 11. During installation, a side of the first groove wall 131 that faces the second housing 21 abuts against the bearing surface, and the second housing 21 can support the first housing 11. In order to ensure fixation, fixing holes can be arranged on the second housing 21, and the second housing 21 can be fixed to the first housing 11 by passing bolts through the fixing holes.
With reference to
It can be understood that the multiple first fixing holes 14 can be arranged on the lower edge of the first housing 11, with the axial direction of the first fixing holes 14 being the same as the radial direction of the axial flow fan, and the multiple second fixing holes 26 can be arranged on the lower edge of the second housing 21, with the axial direction of the second fixing holes 26 being the same as the radial direction of the axial flow fan. The first housing 11 and the second housing 21 can be fixedly installed by passing bolts through the first fixing holes 14 and the second fixing holes 26.
With reference to
It can be understood that the lower side of the air guide ring 150 can be fixedly connected to the groove portions 13. In one embodiment, at least one installation hole 157 can be provided on the groove bottom wall 133, i.e., on the side of the groove portion 13 that faces the axial flow fan. The side installation portions 156 can be provided at the lower end of the peripheral side of the air guide ring 150, and bolt holes can be provided on the side installation portions 156 and bolts can pass through the installation holes 157 and the bolt holes to fix the air guide ring 150 on the groove portions 13. With the fixation between the upper part of the air guide ring 150 and the support portions 16, the connection reliability of the air guide ring 150 can be further improved, and the air guide ring 150 is not easily shaken or deformed during use.
With reference to
The air conditioner outdoor unit 100 includes a compressor 162, the heat exchanger assembly 130, and a gas-liquid separator 163. The heat exchanger assembly 130 is the heat exchanger assembly 130 provided in the first aspect of the present application, one end of the heat exchanger assembly 130 is connected to an exhaust port of the compressor 162, and the other end of the heat exchanger assembly 130 is connected to a liquid pipe. One end of the gas-liquid separator 163 is connected to an air return port of the compressor 162, and the other end of the gas-liquid separator 163 is connected to a gas pipe.
The HVAC apparatus includes the air conditioner outdoor unit 100 according to any of the above embodiments, and further includes the compressor 162 and the gas-liquid separator 163 connected to the compressor 162. The compressor 162 and the gas-liquid separator 163 can be arranged at the bottom of the cabinet 110 of the air conditioner outdoor unit 100 and located inside the heat exchange channel 137. The compressor 162 is used to compress the refrigerant medium, and the compressed refrigerant medium flows in the heat exchanger assembly 130. Under the action of the axial flow fan 120 inside the air conditioner outdoor unit 100, the heat generated in the heat exchanger assembly 130 is cooled by the airflow in the airflow channel 113, and the heat is carried to the outside of the air conditioner outdoor unit 100 by the airflow.
The HVAC apparatus of the present application also includes the air conditioner indoor unit 160, in which an indoor heat exchanger 161 is arranged and communicated with the heat exchanger assembly 130 in the air conditioner outdoor unit 100 through the liquid pipe 167, and the refrigerant medium in the heat exchanger assembly 130 of the air conditioner outdoor unit 100 can circulate to the indoor heat exchanger 161 of the air conditioner indoor unit 160 and exchange heat with the indoor air, maintaining the indoor temperature within a reasonable range. In a cooling mode, the heat exchanger in the air conditioner outdoor unit 100 is communicated with the exhaust port of the compressor 162, condensing the refrigerant coming out of the compressor; the heat exchanger assembly 130 in the air conditioner indoor unit serves as an evaporator; after passing through the evaporator, the indoor air exchanges heat with the refrigerant, and the air is cooled and blown out to the indoor space through a blow-out port of the air conditioner indoor unit 160. In a heating mode, the air conditioner indoor unit 160 is communicated with the exhaust port of the compressor 162 through the gas pipe 166, and the high-temperature refrigerant passes through the indoor heat exchanger 161 to exchange heat with the indoor air, to heat the indoor air. The compressor 162 can be a jet type enthalpy increasing compressor, which has an air return pipe 164. The compressor 162 performs air compressing and jetting simultaneously through the air return pipe 164 and a four-way valve 165 to realize mixed cooling, achieving enthalpy increasing effect. The gas-liquid separator 163 is arranged on the air return pipe 164 for gas-liquid separation of the return air. In addition, filters 168 are arranged on the gas pipe 166 and the liquid pipe 167 respectively to filter gas and liquid, improving the reliability of the entire machine.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202311245912.0 | Sep 2023 | CN | national |
