CN212400832U - Pure electric heat pump bus air conditioner - Google Patents
Pure electric heat pump bus air conditioner Download PDFInfo
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- CN212400832U CN212400832U CN202021136574.9U CN202021136574U CN212400832U CN 212400832 U CN212400832 U CN 212400832U CN 202021136574 U CN202021136574 U CN 202021136574U CN 212400832 U CN212400832 U CN 212400832U
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Abstract
The utility model discloses a pure electric heat pump passenger car air conditioner, which comprises an air conditioner shell, wherein a condenser unit, a compressor unit and an evaporator unit are arranged in the air conditioner shell; the compressor unit is provided with a compressor and a four-way reversing valve; the evaporator unit is provided with an evaporator and a liquid storage device; the condenser unit has a heat-radiating portion and a first condenser; a second condenser; a first tee member; a second tee; the fourth pipeline is provided with a one-way valve, the third pipeline is provided with an electromagnetic valve, the other end of the fifth pipeline is communicated with one opening of the four-way reversing valve, and the other end of the sixth pipeline is communicated with the liquid storage device. The utility model has the advantages of adopting two condensers connected in parallel. The main condenser and the auxiliary condenser work simultaneously in the refrigeration mode, so that the power of the air conditioner is reduced, and the power consumption is reduced. In the heating mode, only the main condenser works, so that the heat absorption capacity of the system is reduced, the exhaust temperature and the system pressure of the air conditioner are reduced, and the reliability and the stability of the operation of the air conditioner are ensured.
Description
Technical Field
The utility model relates to a passenger train air conditioner especially relates to a pure electric heat pump passenger train air conditioner.
Background
With the continuous implementation of the national energy-saving and emission-reducing policy, the share of the pure electric buses and the pure passenger cars in the market is continuously increased, and the pure electric buses rely on the storage batteries of the pure electric buses to provide power sources for the whole buses and provide power sources for various parts such as bus air conditioners. In order to increase the service life of the storage battery and the operation mileage of the passenger car, each passenger car factory also puts higher demands on the power consumption of the air conditioner of the passenger car.
Passenger car air conditioners have an evaporator (a heat absorbing member for absorbing heat in the environment) and a condenser (a heat radiating member for releasing heat in the air conditioning system). From the operation principle of the air conditioner, when the size of the evaporator is fixed (namely the heat absorption capacity is fixed), the larger condenser can better radiate heat for the air conditioning system, so that the power of the whole air conditioner is reduced, the energy efficiency of the air conditioner is improved, and the power consumption of the air conditioner is reduced. However, in the heat pump type air conditioner, the evaporator and the condenser are exchanged during heating, and if the large evaporator and the small evaporator are designed under the cooling mode, the large evaporator and the small condenser are changed during heating, at this time, the heat absorption capacity is large due to the fact that the evaporator is too large, the condenser is too small, the heat dissipation capacity is insufficient, the problems of too high exhaust temperature and pressure and the like of the air conditioner occur, and the energy efficiency of the whole machine is also reduced.
Disclosure of Invention
An object of the utility model is to provide a solve electricelectric heat pump passenger train air conditioner of above-mentioned problem.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
the pure electric heat pump passenger car air conditioner comprises an air conditioner shell, wherein a condenser unit, a compressor unit and an evaporator unit are arranged in the air conditioner shell;
the compressor unit has a compressor and a four-way reversing valve;
the evaporator unit has an evaporator and a reservoir;
the condenser unit has a heat radiating portion;
the condenser unit further has:
the liquid inlet end of the first condenser is communicated with the first pipeline, and the liquid outlet end of the first condenser is communicated with the second pipeline;
the liquid inlet end of the second condenser is communicated with the third pipeline, and the liquid outlet end of the second condenser is communicated with the fourth pipeline;
the first opening of the first three-way piece is communicated with the other end of the first pipeline, the second opening of the first three-way piece is communicated with the other end of the third pipeline, and the third opening of the first three-way piece is communicated with the fifth pipeline;
the first opening of the second three-way piece is communicated with the other end of the second pipeline, the second opening of the second three-way piece is communicated with the other end of the fourth pipeline, and the third opening of the second three-way piece is communicated with the sixth pipeline;
the four-way reversing valve is characterized in that a one-way valve is arranged on the fourth pipeline, an electromagnetic valve is arranged on the third pipeline, the other end of the fifth pipeline is communicated with one opening of the four-way reversing valve, and the other end of the sixth pipeline is communicated with a liquid storage device.
Specifically, the first condenser is a finned tube condenser.
Specifically, the second condenser is a parallel flow condenser.
Specifically, the heat dissipation part is arranged on one side of the first condenser and one side of the second condenser.
Specifically, the heat dissipation part is at least one condensing fan arranged on one side of the first condenser and one side of the second condenser.
Specifically, the heat dissipation part comprises a first condensation fan, a second condensation fan and a third condensation fan;
the first condensing fan and the second condensing fan are arranged on one side of the first condenser; the third condensing fan is arranged on one side of the second condenser.
The utility model has the advantages that the device adopts two main condensers and two auxiliary condensers which are connected in parallel, wherein the main condenser is a first condenser, and the auxiliary condensers are second condensers; and the use of the two condensers is controlled by opening and closing the electromagnetic valve. The main condenser and the auxiliary condenser work simultaneously in a refrigeration mode, and the heat dissipation capacity of the air conditioner is increased, so that the power of the air conditioner is reduced, and the power consumption is reduced. In the heating mode, only the main condenser works (the main condenser is a heat absorption part at the moment), so that the heat absorption capacity of the system is reduced, the exhaust temperature and the system pressure of the air conditioner are reduced, and the reliability and the stability of the operation of the air conditioner are ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the pure electric heat pump passenger car air conditioner of the present invention comprises an air conditioner casing 1, wherein a condenser unit 2, a compressor unit 3 and an evaporator unit 4 are arranged in the air conditioner casing 1;
the compressor unit 3 has a compressor 31 and a four-way selector valve 32;
the evaporator unit 4 has an evaporator 41 and a liquid reservoir 42;
the condenser unit 2 has a heat radiation portion; the condenser unit 2 further has:
the liquid inlet end of the first condenser 21 is communicated with a first pipeline 51, and the liquid outlet end of the first condenser 21 is communicated with a second pipeline 52;
a liquid inlet end of the second condenser 22 is communicated with the third pipeline 53, and a liquid outlet end of the second condenser 22 is communicated with the fourth pipeline 54;
a first opening of the first three-way part 23 is communicated with the other end of the first pipeline 51, a second opening of the first three-way part 23 is communicated with the other end of the third pipeline 53, and a third opening of the first three-way part 23 is communicated with a fifth pipeline 55;
a first opening of the second three-way part 24 is communicated with the other end of the second pipeline 52, a second opening of the second three-way part 24 is communicated with the other end of the fourth pipeline 54, and a third opening of the second three-way part 24 is communicated with a sixth pipeline 56;
wherein, a one-way valve 25 is arranged on the fourth pipeline 54, an electromagnetic valve 26 is arranged on the third pipeline 53, the other end of the fifth pipeline 55 is communicated with one opening of the four-way reversing valve 32, and the other end of the sixth pipeline 56 is communicated with the liquid reservoir 42;
specifically, the first condenser 21 is a fin-tube condenser, which is a main condenser; the second condenser 22 is a parallel flow type condenser, which is an auxiliary condenser; the double condensers are arranged in parallel, and the ratio of the two condensers is 3: 1;
the parallel flow type condenser is made of all-aluminum materials, is light in weight and low in price, but water is easy to accumulate in the heat exchanger, and the surface of the heat exchanger is easy to frost under the low-temperature condition, so that the parallel flow type condenser is only used as a condenser and is not used as an evaporator, and the auxiliary condenser adopts a parallel flow type structure and is only used in a refrigerating state, and has the advantages of light weight, low price and the like;
the fin tube type condenser adopts a structure that a copper tube is sleeved with an aluminum foil fin, has the advantages of being not easy to accumulate water and frost, and can be used as a condenser and an evaporator, so that the main condenser adopts a fin tube type structure and can be normally used in refrigeration and heating states;
specifically, the heat dissipation portions are a first condensing fan 27, a second condensing fan 28 and a third condensing fan 29 which are arranged on one sides of the first condenser 21 and the second condenser 22;
the proportion of the main condenser and the auxiliary condenser which are connected in parallel is 3:1, the heat dissipation capacity required by the main condenser is large, so that the first condensing fan 27 and the second condensing fan 28 are arranged on one side of the first condenser 21 to ensure enough heat dissipation efficiency; the heat dissipation required by the sub-condenser is small, so that the third condensing fan 29 is arranged on one side of the second condenser 22 to meet the heat dissipation requirement.
The working principle is as follows:
principle of air-conditioning refrigeration mode: when the air conditioner is in a refrigeration mode, high-temperature and high-pressure refrigerant gas discharged from the compressor 31 flows to the condenser unit 2 through the four-way reversing valve 32, at the moment, the electromagnetic valve 26 is in an open state, the refrigerant is divided by the first three-way member 23 and respectively enters the main condenser and the auxiliary condenser, and becomes refrigerant liquid at normal temperature and high pressure after condensation and heat dissipation, and the refrigerant in the auxiliary condenser flows to the evaporator unit 4 through the sixth pipeline 56 after being converged by the refrigerant flowing out of the main condenser through the second three-way member 24 through the one-way valve 25; the normal-temperature high-pressure refrigerant liquid passes through the expansion valve in the evaporator unit 4 and then becomes low-temperature low-pressure refrigerant liquid, then flows into the evaporator 41, is subjected to heat absorption and vaporization in the evaporator 41 to become low-temperature low-pressure refrigerant gas, and finally returns to the compressor 31 to be compressed again, thereby completing the whole refrigeration cycle.
Principle of air conditioner heating mode: the heating circulation principle of the air conditioner is basically the same as that of a refrigeration mode, and the difference is that through the reversing of the four-way reversing valve 32, high-temperature and high-pressure refrigerant gas firstly enters the evaporator 41 to be condensed and radiated, and the functions of the evaporator 41 and a main condenser are exchanged; at the moment, the electromagnetic valve 26 is in a closed state, and the one-way valve 25 at the outlet of the auxiliary condenser is matched, so that the refrigerant cannot enter the auxiliary condenser, can only evaporate and absorb heat in the main condenser, flows out of the main condenser and flows back to the compressor 31 through the first three-way piece 23, the fifth pipeline 55 and the four-way reversing valve 32, and the heating cycle is completed; therefore, the stability and the reliability of the heating operation of the air conditioner are realized, and the rest processes are the same as the refrigeration mode.
The device adopts two main condensers and two auxiliary condensers which are connected in parallel, and the use of the two condensers is controlled by opening and closing the electromagnetic valve 26. The main condenser and the auxiliary condenser work simultaneously in a refrigeration mode, and the heat dissipation capacity of the air conditioner is increased, so that the power of the air conditioner is reduced, the energy efficiency of the air conditioner is improved, and the power consumption is reduced; in the heating mode, only the main condenser works (the main condenser is a heat absorption part at the moment), so that the heat absorption capacity of the system is reduced, the exhaust temperature and the system pressure of the air conditioner are reduced, and the reliability and the stability of the operation of the air conditioner are ensured.
In the description of the present invention, it should be noted that the orientation, piping arrangement position or positional relationship shown in the drawings is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Claims (6)
1. A pure electric heat pump passenger car air conditioner comprises an air conditioner shell, wherein a condenser unit, a compressor unit and an evaporator unit are arranged in the air conditioner shell;
the compressor unit has a compressor and a four-way reversing valve;
the evaporator unit has an evaporator and a reservoir;
the condenser unit has a heat radiating portion;
characterized in that the condenser unit further has:
the liquid inlet end of the first condenser is communicated with the first pipeline, and the liquid outlet end of the first condenser is communicated with the second pipeline;
the liquid inlet end of the second condenser is communicated with the third pipeline, and the liquid outlet end of the second condenser is communicated with the fourth pipeline;
the first opening of the first three-way piece is communicated with the other end of the first pipeline, the second opening of the first three-way piece is communicated with the other end of the third pipeline, and the third opening of the first three-way piece is communicated with the fifth pipeline;
the first opening of the second three-way piece is communicated with the other end of the second pipeline, the second opening of the second three-way piece is communicated with the other end of the fourth pipeline, and the third opening of the second three-way piece is communicated with the sixth pipeline;
the four-way reversing valve is characterized in that a one-way valve is arranged on the fourth pipeline, an electromagnetic valve is arranged on the third pipeline, the other end of the fifth pipeline is communicated with one opening of the four-way reversing valve, and the other end of the sixth pipeline is communicated with a liquid storage device.
2. A pure electric heat pump passenger car air conditioner according to claim 1, characterized in that: the first condenser is a finned tube condenser.
3. A pure electric heat pump passenger car air conditioner according to claim 1, characterized in that: the second condenser is a parallel flow condenser.
4. A pure electric heat pump passenger car air conditioner according to claim 1, characterized in that: the heat dissipation part is arranged on one side of the first condenser and one side of the second condenser.
5. A pure electric heat pump passenger car air conditioner according to claim 4, characterized in that: the heat dissipation part is at least one condensing fan arranged on one side of the first condenser and one side of the second condenser.
6. A pure electric heat pump passenger car air conditioner according to claim 4, characterized in that: the heat dissipation part comprises a first condensation fan, a second condensation fan and a third condensation fan;
the first condensing fan and the second condensing fan are arranged on one side of the first condenser; the third condensing fan is arranged on one side of the second condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021136574.9U CN212400832U (en) | 2020-06-18 | 2020-06-18 | Pure electric heat pump bus air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021136574.9U CN212400832U (en) | 2020-06-18 | 2020-06-18 | Pure electric heat pump bus air conditioner |
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| Publication Number | Publication Date |
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| CN212400832U true CN212400832U (en) | 2021-01-26 |
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| CN202021136574.9U Active CN212400832U (en) | 2020-06-18 | 2020-06-18 | Pure electric heat pump bus air conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002273A (en) * | 2021-03-22 | 2021-06-22 | 海信集团控股股份有限公司 | Automobile and air conditioner |
| CN113022253A (en) * | 2021-03-22 | 2021-06-25 | 海信集团控股股份有限公司 | Automobile and air conditioner |
| CN114290868A (en) * | 2021-04-28 | 2022-04-08 | 海信集团控股股份有限公司 | Automobile and air conditioner |
-
2020
- 2020-06-18 CN CN202021136574.9U patent/CN212400832U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002273A (en) * | 2021-03-22 | 2021-06-22 | 海信集团控股股份有限公司 | Automobile and air conditioner |
| CN113022253A (en) * | 2021-03-22 | 2021-06-25 | 海信集团控股股份有限公司 | Automobile and air conditioner |
| CN114290868A (en) * | 2021-04-28 | 2022-04-08 | 海信集团控股股份有限公司 | Automobile and air conditioner |
| CN114290868B (en) * | 2021-04-28 | 2024-02-09 | 三电(中国)汽车空调有限公司 | Automobile and air conditioner |
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