Patent Application
20200173741
This application claims priority to Chinese patent application CN 201811455692.3, filed Nov. 30, 2018, the entire contents of which are incorporated by reference herein.
The present invention relates to the field of heat sink technology, and in particular, to a heat sink and a vending machine.
Currently, an important application scenario for retail or artificial intelligence is the vending machine. The products sold by vending machines mainly include beverages and snacks. If the temperature in the vending machine cabinet is not controlled within a lower temperature range, it will be detrimental to the long-term preservation of the goods, so the refrigeration system plays an important role in the vending machine.
However, many vending machines exist in outdoor use. When running for a long time, dust clogging will occur on the radiator end, which will affect heat dissipation, and will affect the refrigeration capacity of the refrigeration system. It will not be able to meet the required cooling capacity inside the vending machine for a long time.
In summary, one embodiment provides a device, comprising: a fan motor; a fan having a blade; a heat dissipation cavity that includes tubing; and a physical device that stores a preset that acts to: operate the fan motor to turn the blade of the fan in a first direction to blow air through the heat dissipation cavity in a first direction for a preset time; and thereafter operate the fan motor to turn the blade of the fan in a second direction to blow air through the heat dissipation cavity in a second direction.
Another embodiment provides a system, comprising: a vending machine, comprising: a cabinet and a refrigeration system; and a heat sink device operatively coupled to the refrigeration system, the heat sink device comprising: a fan motor; a fan having a blade; a heat dissipation cavity that includes tubing; and a physical device that stores a preset that acts to: operate the fan motor to turn the blade of the fan in a first direction to blow air through the heat dissipation cavity in a first direction for a preset time; and thereafter operate the fan motor to turn the blade of the fan in a second direction to blow are through the heat dissipation cavity in a second direction.
A further embodiment provides a heat dissipating device that it is applied to a vending machine refrigeration system, the heat dissipating device comprising: a fan, a fan motor and a heat dissipating cavity; wherein the fan is connected to the fan motor, and the heat dissipation cavity includes a first end surface adjacent to the fan and a second end surface away from the fan; the first end surface and the second end surface further comprise a plurality of sets of heat dissipating copper tubes parallel to the first end surface and disposed in the same direction, and the heat dissipating copper tubes in each set of the heat dissipating copper tubes being parallel to each other; a group of the heat dissipating copper tubes also being covered with a wide gap metal mesh; wherein the fan motor is a positive and negative motor providing forward and reverse airflow; characterized in that, when the vending machine refrigeration system is started, the fan motor is reversed for a preset time, and the fan is reversed to obtain airflow through the heat dissipation cavity from the first end surface to the second end surface.
The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.
It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It is to be understood that the term “comprises”, “comprising”, or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase “comprising a . . . ” does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.
Herein, the use of suffixes such as “module”, “component” or “unit” for indicating an element is merely an explanation for facilitating the present invention, and does not have a specific meaning per se. Therefore, “module” and “component” can be used in combination.
In the following description, the serial numbers of the embodiments of the invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.
The main object of the present invention is to provide a heat dissipating device and a vending machine to solve the problem that the radiator of the vending machine refrigeration system in the prior art is prone to dust clogging and affects the cooling efficiency of the refrigeration system.
In order to achieve the above object, a first aspect of an embodiment of the present invention provides a heat dissipation device, which is applied to a vending machine refrigeration system, and the heat dissipation device includes: a fan, a fan motor, and a heat dissipation cavity.
The fan is connected to the fan motor, and the heat dissipation cavity includes a first end surface adjacent to the fan and a second end surface away from the fan. The first end surface and the second end surface further comprise a plurality of sets of heat dissipating copper tubes parallel to the first end surface and disposed in the same direction, and the heat dissipating copper tubes in each set of the heat dissipating copper tubes are parallel to each other. The group of heat-dissipating copper tubes is also covered with a wide gap metal mesh, where the fan motor is a positive and negative motor.
When the vending machine refrigeration system is started, the fan motor is reversed for a preset time, and the fan is reversed to obtain the heat dissipation cavity from the first end surface to the second end surface. The preset may be implemented using a circuit or memory that stores instructions that are executed by processor, collectively referred to as a preset module, which is a physical device.
Optionally, the second end surface is a heat dissipation copper tube covering the wide gap metal mesh.
Optionally, the gap in the wide gap metal mesh is 10-20 mm.
Optionally, the minimum distance between the fan and any one of the heat dissipation copper tubes is greater than 20 mm.
Optionally, the two opposite sides of the heat dissipation cavity further comprise a plurality of copper tube openings.
The two ends of the heat dissipation copper tube are fixed on the copper tube openings of the two opposite sides.
Optionally, both ends of the copper tube protrude from the copper tube opening.
Optionally, the first end surface comprises a circular opening.
A portion of the fan blade of the fan extends into the heat dissipation cavity from the circular opening.
Optionally, the fan motor further has a bracket.
A portion of the fan blade of the fan is disposed between the first end surface and the bracket.
Optionally, the circular opening edge is further provided with a buckle.
An end of the bracket that is not in contact with the fan motor is fixedly connected to the first end surface by the buckle.
A second aspect of the embodiments of the present invention provides a vending machine comprising a cabinet and a refrigeration system, the refrigeration system comprising the heat sink of the first aspect.
The heat dissipation device provided by an embodiment of the invention includes a fan, a fan motor and a heat dissipation cavity. The fan motor is a positive and negative motor, which can provide power to the fan. The heat dissipation cavity includes a first end surface and a second end surface. It also includes a heat-dissipating copper tube covered with a wide gap metal mesh, which can expand the heat dissipation area and improve the heat dissipation efficiency; when the vending machine refrigeration system starts, the fan motor reverses within a preset time to drive the fan to reverse, so that the heat dissipation cavity obtains the wind force from the first end surface to the second end surface, thereby cleaning the heat dissipation cavity. At the same time, the wide gap metal mesh can ensure the dust can be removed from the wide gap metal mesh under the premise of expanding the heat dissipation area and improving the heat dissipation efficiency, avoiding the accumulation of dust in the heat sink to reduce the heat dissipation capacity, so that the vending machine refrigeration system can operate stably and efficiently.
As shown in
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The first end surface 31 and the second end surface 32 further include a plurality of sets of heat dissipating copper tubes 33 (e.g., one copper tube organized into a series of loops of folds) parallel to the first end surface 31 and disposed in the same direction, and the heat dissipating copper tubes in each set of heat dissipating copper tubes 33 are parallel to each other, and the same group of heat dissipating copper tubes 33 is also covered with a wide gap metal mesh 34.
In the embodiment of the invention, the plurality of sets of heat dissipating copper tubes 33 form a plurality of heat dissipating surfaces to be placed in the heat dissipating cavity 30, and the the wide gap metal mesh 34 increases the heat dissipating area.
In a specific application, the wide gap metal mesh 34 can be made of any metal having good heat dissipation properties, such as copper, iron, aluminum, and the like.
In practical applications, the pipes of the heat-dissipating copper pipe or tubes 33 have sealed therein an easily evaporating liquid, such as Freon or extremely low-pressure water. When the heat-dissipating copper tubes 33 are used for heat dissipation, there are two states of liquid and vapor in the pipeline. At the hot end, the liquid evaporates with heat while absorbing heat. When these gases diffuse to the cold end, they condense and release heat to achieve heat dissipation.
In the embodiment of the present invention, the fan motor 20 is a forward and reverse motor.
When the vending machine refrigeration system is started, the fan motor 20 is reversed within a preset time to drive the fan to reverse, so that the heat dissipation cavity 30 obtains the wind from the first end face 31 to the second end face 32, even if the wind from the heat dissipation cavity to the outside is obtained. The surface of the heat-dissipating copper tubes 33 covering the wide gap metal mesh 34 also obtains the wind force, and the preset time is adjusted. This preset time can ensure that the dust of the metal mesh 34 is discharged to achieve the effect of cleaning the heat dissipation cavity 30.
After the preset time, the fan motor 20 rotates in the forward direction to drive the fan to rotate in the forward direction, so that the heat dissipation cavity 30 obtains the wind from the second end face 32 to the first end face 31, and the heat generated by the vending machine refrigeration system is released in time.
In the embodiment of the invention, the second end surface 32 includes a heat dissipation copper tube covering the wide gap metal mesh 34, and the heat dissipation capability of the heat dissipation cavity 30 is increased.
In a specific application, the second end surface 32 may also be any structure capable of supporting the heat dissipation cavity 30 without reducing the heat dissipation capability of the heat dissipation cavity 30, for example, the second end surface 32 is provided as a detachable dust adsorption structure, which facilitates simple cleaning of the heat dissipation device 30.
In practical applications, the mesh structure 34 on the heat-dissipating copper tubes 33 is the main cause of the dirty plugging of the heat sink, and the gap is usually 3-5 mm to achieve the effect of expanding the heat-dissipating area.
In the embodiment of the invention, the gap in the wide gap metal mesh 34 is 10-20 mm.
In the specific application, the gap is set to 10-20 mm, which is based on increasing the heat dissipation area and improving the heat dissipation effect. When the heat dissipation cavity 30 obtains the wind force from the first end surface 31 to the second end surface 32, the surface dust can be removed from the wide gap. The metal mesh 34 is blown away for automatic cleaning.
In the embodiment of the invention, the minimum distance between the fan 10 and any set of heat-dissipating copper tubes 33 is greater than 20 mm.
In a specific application, the heat dissipation cavity 30 is divided into a space for accommodating the fan 10 and a space for placing the heat dissipation copper tubes 33, so that the fan 20 and the heat dissipation copper tubes 33 do not interfere with each other.
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In specific applications, the copper tube opening 35 allows the heat sink copper tube 33 to be secured within the heat sink cavity 30.
The embodiment of the invention also provides the structure of the fixed fan motor 20 and the heat dissipation cavity 30, as follows.
As shown in
In a particular application, the diameter of the circular opening 36 is larger than the diameter of the fan 10 to provide sufficient space for the fan 10 to rotate.
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In the specific application, the bracket 21 flexibly fixes the fan motor 20 and the heat dissipation cavity 30 through the buckle 27, which is convenient for disassembly and inspection and maintenance.
The heat dissipation device provided by the embodiment of the invention includes a fan, a fan motor and a heat dissipation cavity. The fan motor is a positive and negative motor, which can provide power to the fan. The heat dissipation cavity includes a first end surface and a second end surface, and the first end surface and the second end surface. It also includes a heat-dissipating copper tube covered with a wide gap metal mesh, which can expand the heat dissipation area and improve the heat dissipation efficiency. When the vending machine refrigeration system starts, the fan motor reverses within a preset time to drive the fan to reverse, so that the heat dissipation cavity obtains the wind force from the first end surface to the second end surface, thereby cleaning the heat dissipation cavity. At the same time, the wide gap metal mesh can ensure the dust can be removed from the wide gap metal mesh under the premise of expanding the heat dissipation area and improving the heat dissipation efficiency, avoiding the long-term operation of the vending machine refrigeration system, causing the accumulation of dust in the heat sink to reduce the heat dissipation capacity, so that the vending machine refrigeration system can operate stably and efficiently.
The embodiment of the invention further provides a vending machine comprising a cabinet and a refrigeration system, wherein the refrigeration system comprises the above-mentioned heat sink.
The embodiments described above are only for explaining the technical solutions of the present invention, and are not limited thereto. Although the foregoing embodiments have explained the present invention in detail, those skilled in the art should understand that the foregoing embodiments can still be modified, or some of the technical features are replaced by equivalents, and these modifications or substitutions do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the present invention within the scope of protection of the invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201811455692.3 | Nov 2018 | CN | national |
