This application is the national phase of International Application No. PCT/CN2015/076290, titled “COMPRESSOR AND AIR CONDITIONER”, filed on Apr. 10, 2015, which claims the benefit of priority to Chinese Patent Application No. 201410143626.8 titled “COMPRESSOR AND AIR CONDITIONER”, filed with the Chinese State Intellectual Property Office on Apr. 10, 2014, the entire disclosure of which is incorporated herein by reference.
The present application relates to the field of refrigeration, and particularly to a rolling rotor-type three-cylinder double-stage enthalpy increasing compressor with variable capacity and an air conditioner.
As the ambient temperature drops, the specific volume of a refrigerant increases, and the unit air intake capacity of a compressor is reduced, resulting in a substantial decline of a heating capacity of the compressor. Generally, electrically auxiliary heating is employed to improve the heating capacity of the compressor or a double-stage enthalpy increasing compressor is employed to address the issue of low heating capacity at a low temperature. The method for improving the heating capacity of the compressor by the electrically auxiliary heating has a low energy efficiency Since the displacement of a conventional double-stage enthalpy increasing compressor is not adjustable, the conventional double-stage enthalpy increasing compressor has a poor adaptability to operating conditions, and if the heating capacity and energy efficiency of the compressor under a working condition with a low temperature are ensured, the energy efficiency of the compressor operating in a normal working condition may decline significantly.
In view of the present situation of the conventional technology, an object of the present application is to provide a compressor and an air conditioner, in which the number of working cylinders of a multi-cylinder compressor can be flexibly adjusted, thereby improving the adaptability of the compressor to working conditions. To achieve the above object, the following technical solutions of the present application are provided.
A compressor includes a low-pressure stage cylinder, a first high-pressure stage cylinder, a second high-pressure stage cylinder and a lower flange;
Preferably, two of the partitions are respectively a first partition and a second partition, and the first partition and/or the second partition is provided with a sliding-sheet control device configured to control a movement of a respective sliding sheet; or, the first partition and/or the lower flange is provided with the sliding-sheet control device; or, the second partition and/or the lower flange is provided with the sliding-sheet control device; and each of the sliding-sheet control devices corresponds to one of the sliding sheets,
Preferably, the first high-pressure stage cylinder and the second high-pressure stage cylinder are both situated at an upper side of the low-pressure stage cylinder, and the first partition and/or the second partition is provided with the sliding-sheet control device, and the first high-pressure stage cylinder and/or the second high-pressure stage cylinder functions as an unloadable cylinder.
Preferably, the first high-pressure stage cylinder and the second high-pressure stage cylinder are both situated at a lower side of the low-pressure stage cylinder, and a lower one of the first partition and the second partition is provided with the sliding-sheet control device and/or the lower flange is provided with the sliding-sheet control device, and the first high-pressure stage cylinder and/or the second high-pressure stage cylinder functions as an unloadable cylinder.
Preferably, the low-pressure stage cylinder is situated between the first high-pressure stage cylinder and the second high-pressure stage cylinder, an upper one of the first partition and the second partition is provided with the sliding-sheet control device and/or the lower flange is provided with the sliding-sheet control device, and the first high-pressure stage cylinder and or the second high-pressure stage cylinder functions as an unloadable cylinder.
Preferably, the lower flange is provided with a middle chamber.
Preferably, the sliding-sheet control device includes a pin and an elastic restoring element, and the elastic restoring element is arranged at a tail of the pin, and
Further, the first partition and/or the second partition is provided with a through hole corresponding to the locking slot; or, the first partition and/or the lower flange is provided with a through hole corresponding to the locking slot; or, the second partition and/or the lower flange is provided with a through hole corresponding to the locking slot; and the pin is situated in the through hole, and is in a sealed cooperation with the through hole, and the pin is movable in an axial direction of the through hole.
Further, the low-pressure stage cylinder, the first high-pressure stage cylinder or the second high-pressure stage cylinder is further provided with a groove corresponding to the through hole, and the groove is in communication with the through hole to form a cavity, and the cavity is configured to communicate with a control pipeline.
Preferably, the compressor has a first working mode, a second working mode and a third working mode,
The present application further relates to an air conditioner, which includes a compressor, and the compressor is the compressor according to any one of the above technical solutions.
The present application has the following beneficial effects.
In the compressor and the air conditioner according to the present application, the first high-pressure stage cylinder and/or the second high-pressure stage cylinder is a variable capacity cylinder, thus, the number of working cylinders of a multi-cylinder compressor can be conveniently and flexibly adjusted, and the adaptability of the compressor to working conditions is thus improved. In a normal working condition (with a light load), one or more high-pressure stage cylinders are unloaded, thereby improving energy efficiency of the compressor, and enhancing comprehensive energy efficiency of the compressor; and in a working condition with a low temperature (with a heavy load), the number of high-pressure stage cylinders that are working is increased, thereby significantly improving the heating capacity of the compressor.
In order to make the object, technical solutions and advantages of the present application clearer and readily understandable, the compressor and the air conditioner according to the present application are further described in detail hereinafter in conjunction with drawings and embodiments. In should be understood that, the embodiments described here are only intended to explain the present application, and are not intended to limit the present application.
Referring to
As an implementable embodiment, the two partitions are respectively a first partition and a second partition, and the first partition and/or the second partition is provided with a sliding-sheet control device configured to control the movement of a respective sliding sheet; or, the first partition and/or the lower flange 9 is provided with the sliding-sheet control device; or, the second partition and/or the lower flange 9 is provided with the sliding-sheet control device. Each of the sliding-sheet control devices corresponds to one sliding sheet. Preferably, the sliding-sheet control device includes a pin 14 and an elastic restoring element 13, and the elastic restoring element 13 is arranged at a tail of the pin 14. The elastic restoring element 13 may be a spring.
The first sliding sheet 15 and/or the second sliding sheet 17 is provided with a locking slot (not indicated), and the pin 14 is configured to cooperate with a respective locking slot. When the pin 14 is situated in the locking slot, the sliding sheet corresponding to the pin 14 is locked, and when the pin 14 is disengaged from the locking slot, the sliding sheet corresponding to the pin 14 is unlocked to be in a free state.
Further, the first partition and/or the second partition is provided with a through hole corresponding to the locking slot; or, the first partition and/or the lower flange is provided with a through hole corresponding to the locking slot; or, the second partition and/or the lower flange 9 is provided with a through hole corresponding to the locking slot. The pin 14 is situated in the through hole, and is in a sealed cooperation with the through hole, and the pin 14 is movable in an axial direction of the through hole.
The low-pressure stage cylinder 8, the first high-pressure stage cylinder 3 or the second high-pressure stage cylinder 6 is further provided with a groove corresponding to the through hole and the groove is in communication with the through hole to form a cavity. The cavity is configured to communicate with a control pipeline, and the refrigerant within the control pipeline can change the pressure difference between two sides of the pin 14, thereby driving the pin 14 to act.
As an implementable embodiment, as shown in
As an implementable embodiment, as shown in
As an implementable embodiment, as shown in
The compressor according to the above embodiments has a first working mode, a second working mode and a third working mode.
In the first working mode (a three-cylinder double-stage mode), taking the first high-pressure stage cylinder 3 and the second high-pressure stage cylinder 6 being both situated at the upper side of the low-pressure stage cylinder 8 as an example, as shown in
In the second working mode (a double-cylinder double-stage mode), taking the first high-pressure stage cylinder 3 and the second high-pressure stage cylinder 6 being both situated at the upper side of the low-pressure stage cylinder 8 as an example, as shown in
In the third working mode (a single-cylinder single-stage mode), taking the first high-pressure stage cylinder 3 and the second high-pressure stage cylinder 6 being both situated at the upper side of the low-pressure stage cylinder 8 as an example, as shown in
The present application further relates to an air conditioner, which includes the compressor according to any one of the above technical solutions. Other parts, except for the compressor, of the air conditioner are all conventional technology, and thus are not described here in detail.
In the compressor and the air conditioner according to the above embodiments, the first high-pressure stage cylinder and/or the second high-pressure stage cylinder is a variable capacity cylinder, and the number of working cylinders of the multi-cylinder compressor can be conveniently and flexibly adjusted, thereby improving the adaptability of the compressor to working conditions. In a normal working condition (with a light load), one or more high-pressure stage cylinders are unloaded, thus improving the energy efficiency of the compressor, and improving the comprehensive energy efficiency of the compressor. In a low temperature working condition with a heavy load), the number of the high-pressure stage cylinders is increased, which can significantly improve the heating capacity of the compressor.
The above embodiments only demonstrates several embodiments of the present application. The description of the embodiments is detailed and specific, however, it cannot consider that these embodiments constitute a limitation to the scope of the present application. It should be noted that, for the person skilled in the art, several variations and modifications may further be made without departing from the concept of the present application, and all these variations and modifications fall into the scope of the present application. Therefore, the scope of the present application is defined by the attached claims.
Number | Date | Country | Kind |
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201410143626.8 | Apr 2014 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2015/076290 | 4/10/2015 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
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WO2015/154717 | 10/15/2015 | WO | A |
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