CN220163628U - Integrated battery cooling heat pump air conditioning system of pure electric commercial vehicle - Google Patents
Integrated battery cooling heat pump air conditioning system of pure electric commercial vehicle Download PDFInfo
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- CN220163628U CN220163628U CN202320993618.7U CN202320993618U CN220163628U CN 220163628 U CN220163628 U CN 220163628U CN 202320993618 U CN202320993618 U CN 202320993618U CN 220163628 U CN220163628 U CN 220163628U
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- 238000001816 cooling Methods 0.000 title claims abstract description 55
- 238000004378 air conditioning Methods 0.000 title claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 abstract description 34
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 56
- 239000000110 cooling liquid Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 12
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 9
- 238000007791 dehumidification Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model relates to an integrated battery cooling heat pump air conditioning system of a pure electric commercial vehicle, which comprises a compressor, an air conditioning box assembly, an outdoor condenser, a battery cooling assembly and a gas-liquid separator, wherein the air conditioning box assembly is connected with the compressor; an exhaust port arranged on the gas-liquid separator is connected with an air suction port arranged on the compressor through a pipeline, and a liquid inlet arranged on the gas-liquid separator is respectively connected with an air conditioning box assembly, an outdoor condenser and a battery cooling assembly through pipelines; an exhaust port arranged on the compressor is connected with an air conditioning box assembly, and the air conditioning box assembly is connected with a battery cooling assembly through an outdoor condenser; the compressor, the air conditioning box assembly, the outdoor condenser, the battery cooling assembly and the gas-liquid separator are respectively and electrically connected with the controller. And the heat dissipation requirement and the heating requirement of the low-temperature working condition are met.
Description
Technical Field
The utility model relates to the technical field of automobile heat management, in particular to an integrated battery cooling heat pump air conditioning system of a pure electric commercial vehicle.
Background
The traditional diesel commercial vehicle adopts engine cooling liquid as a heat source to realize defrosting and demisting of windshield glass and heating of cab, and the pure electric commercial vehicle cancels the engine of the traditional diesel commercial vehicle, so that heating is needed by other modes. Heating by other means is currently required. The conventional heating mode is that the COP (energy efficiency ratio) of the air heating PTC is smaller than 1, the electric energy consumption is relatively large, the energy consumption of the air heating PTC attenuates the driving mileage of the vehicle in a low-temperature environment (-30-15 ℃) by 10% -4%, the driving mileage of the whole vehicle is unfavorable, and therefore, the COP (energy efficiency ratio) of the air heating PTC is larger than 1 in the heating mode through a heat pump air conditioner, the heating performance of the whole vehicle can be guaranteed, and the electric energy consumption can be reduced. However, at present, the heat pump air conditioner mostly adopts R134a as a refrigerant, and the heat pump heating performance under the low-temperature working condition cannot meet the whole vehicle requirement because of the limit value of the self performance of R134a, and meanwhile, the heat pump air conditioner cannot effectively dissipate heat of a battery.
Disclosure of Invention
The utility model provides an integrated battery cooling heat pump air conditioning system of a pure electric commercial vehicle, which meets the heat dissipation requirement and the heating requirement of low-temperature working conditions.
In order to solve the problems in the background art, the utility model is realized by the following technical scheme:
an integrated battery cooling heat pump air conditioning system of a pure electric commercial vehicle is characterized in that: comprises a compressor, an air conditioning box assembly, an outdoor condenser, a battery cooling assembly and a gas-liquid separator; an exhaust port arranged on the gas-liquid separator is connected with an air suction port pipeline arranged on the compressor, and a liquid discharge port arranged on the gas-liquid separator is respectively connected with an air conditioning box assembly, an outdoor condenser and a battery cooling assembly pipeline; the exhaust port arranged on the compressor is connected with the air conditioning box assembly, and the air conditioning box assembly is connected with the battery cooling assembly through the outdoor condenser; the compressor, the air conditioning box assembly, the outdoor condenser, the battery cooling assembly and the gas-liquid separator are respectively and electrically connected with the controller.
Preferably, a liquid outlet arranged on the gas-liquid separator is provided with a temperature pressure sensor A, and the temperature pressure sensor A is respectively connected with the air conditioning box assembly, the outdoor condenser and the battery cooling assembly through pipelines.
Preferably, the air conditioning box assembly comprises an air PTC, an indoor condenser, a temperature air door, an indoor evaporator and a blower; an exhaust port arranged on the compressor is connected with an a-port pipeline of the indoor condenser; the port b of the indoor condenser is connected with the port c of the outdoor condenser through a pipeline, and the port d of the outdoor condenser is connected with the battery cooling assembly through a pipeline; a temperature and pressure sensor B and an electronic expansion valve A are sequentially arranged on a connecting pipeline between a port B of the indoor condenser and a port C of the outdoor condenser, and an electromagnetic stop valve A and a temperature and pressure sensor C are sequentially arranged on a connecting pipeline between a port d of the outdoor condenser and the battery cooling assembly;
the temperature and pressure sensor A is connected with an e port of the indoor evaporator, and an f port of the indoor evaporator is sequentially connected with an electronic expansion valve B and an electromagnetic stop valve B; the electromagnetic stop valve B is connected between the temperature and pressure sensor B and the electronic expansion valve A through the electromagnetic stop valve C, and is connected to a pipeline at the rear end of the electronic expansion valve A through the electromagnetic stop valve D; the electromagnetic stop valve B is also connected between the temperature and pressure sensor C and the battery cooling assembly through a pipeline.
Preferably, the outdoor condenser is provided with an electronic fan, and the electronic fan is electrically connected with the controller through the outdoor condenser.
Preferably, the temperature and pressure sensor A is connected with the g port of the outdoor condenser through an electromagnetic stop valve E.
Preferably, the battery cooling assembly comprises a plate type heat exchanger, a water pump, a battery pack and a water tank; the plate heat exchanger is provided with a water outlet which is sequentially connected with the water pump and the battery pack, and the battery pack is connected with a water return port arranged on the plate heat exchanger; the liquid inlet of the plate heat exchanger is connected with the temperature and pressure sensor C through an electronic expansion valve C and an electromagnetic stop valve F; and a liquid return port arranged on the plate type heat exchanger is connected with the temperature and pressure sensor A through a pipeline.
Compared with the prior art, the utility model has the following beneficial technical effects:
the air PTC electric control device is characterized in that the flow direction of a refrigerant in the gas-liquid separator is controlled by opening and closing a plurality of electromagnetic stop valves, the air PTC electric control device works by switching on and off the air PTC, ventilation is realized by opening/closing a blower and an electronic fan, and the air flow direction is controlled by opening and closing a temperature air door, so that a plurality of working modes of an air conditioner refrigerating mode, a battery cooling mode, an air conditioner refrigerating and battery cooling mode, an air conditioner heating mode, an air conditioner dehumidifying and heating mode, an air conditioner heating and battery cooling mode, an air conditioner dehumidifying and heating mode and a battery cooling mode are realized, and the air PTC can be independently opened for auxiliary heating under a low-temperature working condition.
Drawings
FIG. 1 is a schematic diagram of an integrated battery cooling heat pump air conditioning system provided by the present utility model;
FIG. 2 is a schematic diagram of the state of embodiment 2 of the present utility model;
FIG. 3 is a schematic view showing the state of embodiment 3 of the present utility model;
FIG. 4 is a schematic diagram showing the state of embodiment 4 of the present utility model;
FIG. 5 is a schematic view showing the state of embodiment 5 of the present utility model;
FIG. 6 is a schematic diagram showing the state of embodiment 6 of the present utility model;
FIG. 7 is a schematic view showing the state of embodiment 7 of the present utility model;
fig. 8 is a schematic diagram of the state of embodiment 8 of the present utility model.
Description of the reference numerals
100. A compressor; 200. an air conditioning case assembly; 201. air PTC; 202. an indoor condenser; 203. a temperature damper; 204. an indoor evaporator; 205. a blower; 300. an outdoor condenser; 301. an electronic fan; 400. a battery cooling assembly; 401. a plate heat exchanger; 402. a water pump; 403. a battery pack; 404. a water tank; 500. a gas-liquid separator; 501. a temperature and pressure sensor A; 502. a temperature and pressure sensor B; 503. an electronic expansion valve A; 504. an electromagnetic stop valve A; 505. a temperature and pressure sensor C; 506. an electronic expansion valve B; 507. an electromagnetic stop valve B; 508. electromagnetic stop valves C, 509 and electromagnetic stop valve D; 510. an electromagnetic stop valve E; 511. an electronic expansion valve C; 512. and an electromagnetic stop valve F.
Detailed Description
Example 1
As shown in fig. 1, an integrated battery cooling heat pump air conditioning system of a pure electric commercial vehicle is characterized in that: comprises a compressor 100, an air conditioning box assembly 200, an outdoor condenser 300, a battery cooling assembly 400 and a gas-liquid separator 500; an exhaust port of the gas-liquid separator 500 is connected with an air suction port pipeline of the compressor 100, and a liquid outlet of the gas-liquid separator 500 is connected with the air conditioning box assembly 200, the outdoor condenser 300 and the battery cooling assembly 400 respectively; an exhaust port provided in the compressor 100 is connected to the air conditioning case assembly 200, and the air conditioning case assembly 200 is connected to the battery cooling assembly 400 through the outdoor condenser 300; the compressor 100, the air conditioning case assembly 200, the outdoor condenser 300, the battery cooling assembly 400, and the gas-liquid separator 500 are electrically connected to a controller, respectively.
The liquid outlet provided in the gas-liquid separator 500 is provided with a temperature and pressure sensor a501, and the temperature and pressure sensor a501 is connected to the air conditioning unit 200, the outdoor condenser 300, and the battery cooling unit 400 through pipes, respectively.
Air conditioning case assembly 200 includes air PTC201, indoor condenser 202, temperature damper 203, indoor evaporator 204, and blower 205; an exhaust port provided in the compressor 100 is connected to an a-port line of the indoor condenser 202; the port b of the indoor condenser 202 is connected with the port c of the outdoor condenser 300 through a pipeline, and the port d of the outdoor condenser 300 is connected with the battery cooling assembly 400 through a pipeline; a temperature and pressure sensor B502 and an electronic expansion valve A503 are sequentially arranged on a connecting pipeline between a port B of the indoor condenser 202 and a port C of the outdoor condenser 300, and an electromagnetic stop valve A504 and a temperature and pressure sensor C505 are sequentially arranged on a connecting pipeline between a port d of the outdoor condenser 300 and the battery cooling module 400;
the temperature and pressure sensor A501 is connected with an e port of the indoor evaporator 204, and an f port of the indoor evaporator 204 is sequentially connected with an electronic expansion valve B506 and an electromagnetic stop valve B507; the electromagnetic stop valve B507 is connected between the temperature and pressure sensor B502 and the electronic expansion valve A503 through the electromagnetic stop valve C508, and is connected to a pipeline at the rear end of the electronic expansion valve A503 through the electromagnetic stop valve D509; electromagnetic shut-off valve B507 is also connected between temperature and pressure sensor C505 and battery cooling module 400 by piping.
The outdoor condenser 300 is provided with an electronic fan 301, and the electronic fan 301 is electrically connected to the controller through the outdoor condenser 300.
The temperature and pressure sensor a501 is connected to the g port of the outdoor condenser 300 via an electromagnetic shutoff valve E510.
The battery cooling assembly 400 includes a plate heat exchanger 401, a water pump 402, a battery pack 403, and a water tank 404; the water outlet of the plate heat exchanger 401 is sequentially connected with the water pump 402 and the battery pack 403, and the battery pack 403 is connected with the water return port of the plate heat exchanger 401; the liquid inlet of the plate heat exchanger 401 is connected with a temperature and pressure sensor C505 through an electronic expansion valve C511 and an electromagnetic stop valve F512 in sequence; the liquid return port of the plate heat exchanger 401 is connected with a pipeline of the temperature and pressure sensor A501.
The water outlet of the plate heat exchanger 401 in the battery cooling assembly 400 is sequentially connected with the water pump 402 and the battery pack 403, and the battery pack 403 is connected with the water return port of the plate heat exchanger 401 to form a cooling liquid loop;
the exhaust port of the gas-liquid separator 500 is connected with the air suction port of the compressor 100 through a pipeline, and the liquid discharge port of the gas-liquid separator 500 is respectively connected with the liquid inlet and the liquid outlet of the plate heat exchanger 401 in the air conditioning box assembly 200, the outdoor condenser 300 and the battery cooling assembly 400 through pipelines, so that a refrigerant loop is formed.
Example 2
As shown in fig. 2, fig. 2 is a reference diagram of an air conditioning refrigeration mode state, in which the electromagnetic stop valve B507, the electromagnetic stop valve a504, and the electromagnetic stop valve D509 are opened, the electromagnetic stop valve C508, the electromagnetic stop valve E510, and the electromagnetic stop valve F512 are closed, the electronic expansion valve B506 is opened, and the electronic expansion valve a503 and the electronic expansion valve C511 are closed; the blower 205 and the electronic fan 301 are in the working state, the temperature damper 203 is in the closing state; the water pump 402 is not operating;
the flow direction of the refrigerant in the refrigerant circuit is compressor 100-indoor condenser 202-electromagnetic stop valve D509-outdoor condenser 300-electromagnetic stop valve A504-electromagnetic stop valve B507-electronic expansion valve B506-indoor evaporator 204-gas-liquid separator 500-compressor 100.
The compressor 100 serves as a power source to power the flow of the refrigerant, the indoor condenser 202 plays a role of a channel, the refrigerant is cooled in the outdoor condenser 300, enters the indoor evaporator 204 after being throttled by the electronic expansion valve B506, the refrigerant evaporates and absorbs heat in the indoor evaporator 204, the air flowing through the indoor evaporator 204 is cooled, the low-temperature air directly enters a cab through the action of the blower 205, and the cab is cooled, so that the air conditioning and refrigerating functions are realized.
The temperature and pressure sensor C505 feeds back the temperature and pressure values of the high-pressure stage refrigerant, and the temperature and pressure sensor a501 feeds back the temperature and pressure values of the low-pressure stage refrigerant.
Example 3
As shown in fig. 3, fig. 3 is a battery cooling mode state reference diagram, in which electromagnetic shutoff valve D509, electromagnetic shutoff valve a504, and electromagnetic shutoff valve F512 are opened, electromagnetic shutoff valve B507, electromagnetic shutoff valve C508, and electromagnetic shutoff valve E510 are closed, electronic expansion valve C511 is opened, and electronic expansion valve B506 and electronic expansion valve a503 are closed; the blower 205 and the electronic fan 301 are in the working state, the temperature air door 203 is in the closed state; the water pump 402 is operated;
the refrigerant flow direction is that the compressor 100, the indoor condenser 202, the electromagnetic stop valve D509, the outdoor condenser 300, the electromagnetic stop valve A504, the electromagnetic stop valve F512, the electronic expansion valve C511, the plate type heat exchanger 401, the gas-liquid separator 500 and the compressor 100;
the compressor 100 is used as a power source to provide power for the flow of the refrigerant, the indoor condenser 202 plays a role of a channel, the refrigerant is cooled in the outdoor condenser 300, the refrigerant enters the plate heat exchanger 401 after being throttled by the electronic expansion valve C511, the water pump 402 starts to work at the moment, the temperature is reduced after the cooling and the refrigerant perform heat exchange in the plate heat exchanger 401, and the low-temperature cooling liquid is circulated to the battery pack 403 to cool the battery through the action of the water pump 402. The temperature and pressure sensor C505 feeds back the temperature and pressure values of the high-pressure stage refrigerant, and the temperature and pressure sensor a501 feeds back the temperature and pressure values of the low-pressure stage refrigerant.
Example 4
As shown in fig. 4, fig. 4 is a reference diagram of air conditioning refrigeration and battery cooling mode states, in which electromagnetic shutoff valve a504, electronic expansion valve B506, and electromagnetic shutoff valve D509 are opened, electromagnetic shutoff valve C508, and electromagnetic shutoff valve E510 are closed, electronic expansion valve B506, and electronic expansion valve C511 are opened, and electronic expansion valve a503 is closed; the blower 205 and the electronic fan 301 are in an operating state; the temperature damper 203 is in a closed state; the water pump 402 is in an operating state;
the flow direction of the refrigerant is as follows: compressor 100- -indoor condenser 202- -electromagnetic cut-off valve D509- -outdoor condenser 300- -electromagnetic cut-off valve A504, after which the refrigerant flow direction is split into two paths; one path is as follows: electromagnetic stop valve B507-electronic expansion valve B506-indoor evaporator 204-gas-liquid separator 300; the other path is as follows: electromagnetic stop valve F512-electronic expansion valve C511-plate heat exchanger 401-gas-liquid separator 500; the two paths of refrigerant enter the compressor 100 after being converged by the gas-liquid separator 500;
the compressor 100 serves as a power source for supplying power to the flow of refrigerant, and the indoor condenser 202 serves as a passage, and the refrigerant is cooled in the outdoor condenser 300 and then split into two paths. One path of the air enters the indoor evaporator 204 after passing through the throttling function of the electronic expansion valve B506, the refrigerant evaporates and absorbs heat in the indoor evaporator 204, the air flowing through the indoor evaporator 204 is cooled, and the low-temperature air directly enters the cab through the function of the blower 205 to cool the cab, so that the air conditioning and refrigerating functions are realized; the other path enters the plate heat exchanger 401 after the throttling action of the electronic expansion valve C511, at the moment, the water pump 402 starts to work, the cooling liquid and the refrigerant exchange heat in the plate heat exchanger 401, the temperature of the cooling liquid is reduced after heat release, and the low-temperature cooling liquid is circulated to the battery pack 403 to cool the battery under the action of the water pump 402;
the temperature and pressure sensor C505 feeds back the temperature and pressure values of the high-pressure stage refrigerant, and the temperature and pressure sensor a501 feeds back the temperature and pressure values of the low-pressure stage refrigerant.
Example 5
As shown in fig. 5, fig. 5 is a reference diagram of an air conditioning heating mode state, in which the electromagnetic stop valve E510 is opened, the electromagnetic stop valve D509, the electromagnetic stop valve B507, the electromagnetic stop valve C508, the electromagnetic stop valve a504, and the electromagnetic stop valve F512 are closed, the electronic expansion valve a503 is opened, and the electronic expansion valve C511 and the electronic expansion valve B506 are closed; the blower 205 and the electronic fan 301 are in the working state, and the temperature damper 203 is in the opening state; the water pump 402 is in an inactive state; the refrigerant flow direction is that the compressor 100, the indoor condenser 202, the electronic expansion valve A503, the outdoor condenser 300, the electromagnetic stop valve E510, the gas-liquid separator 300 and the compressor 100;
the compressor 100 is used as a power source to power the flow of the refrigerant, the temperature damper 203 is opened, the air flows through the surface of the indoor condenser 202, the refrigerant is cooled in the indoor condenser 202, the air flowing through the surface of the indoor condenser 202 is heated, the hot air enters the cab under the action of the fan 205, the temperature of the cab is raised, and the air conditioning and heating functions are realized. The refrigerant evaporates and absorbs heat in the outdoor condenser 300, and then enters the gas-liquid separator 500, the temperature and pressure sensor B502 feeds back the temperature and pressure values of the refrigerant in the high-pressure section, and the temperature and pressure sensor A501 feeds back the temperature and pressure values of the refrigerant in the low-pressure section.
Example 6
As shown in fig. 6, fig. 6 is a reference diagram of an air conditioning dehumidification heating mode state, in which electromagnetic stop valve B507, electromagnetic stop valve C508, and electromagnetic stop valve E510 are opened, electromagnetic stop valve a504, electromagnetic stop valve D509, and electromagnetic stop valve F512 are closed, electronic expansion valve B506 is opened, and electronic expansion valve a503 and electronic expansion valve C511 are closed; the blower 205 and the electronic fan 301 are in operation; the temperature damper 203 is in an open state; the water pump 402 is in an inactive state;
the refrigerant flow direction is that the compressor 100-the indoor condenser 202, and then the refrigerant flow direction is divided into two paths, wherein one path is that an electronic expansion valve A503-the outdoor condenser 300-an electromagnetic stop valve E510-a gas-liquid separator 500; the other path is as follows: electromagnetic stop valve C508-electromagnetic stop valve B507-electronic expansion valve B506-indoor evaporator 204-gas-liquid separator 500; the two-way refrigerant enters the compressor 100 after the gas-liquid separator 500 merges.
The compressor 100 is used as a power source to provide power for the flow of the refrigerant, the refrigerant is cooled in the indoor condenser 202, and the air flowing through the surface of the indoor condenser 202 is heated, wherein the refrigerant flows out from the indoor condenser 202, is throttled by the electronic expansion valve A503, evaporated in the outdoor condenser 300 and absorbed in heat, and then enters the gas-liquid separator 500; the other path of the condensed water passes through the electronic expansion valve B506 and then evaporates and absorbs heat in the indoor evaporator 204, the air flowing through the indoor evaporator 204 is cooled, and meanwhile, the water in the air forms condensed water and is discharged; under the action of the blower 205, the air flows through the indoor evaporator 204, is dried and cooled, and then flows through the surface of the indoor condenser 202 to be heated, so that the dehumidifying and heating functions of the air conditioner are realized;
the temperature and pressure sensor B502 feeds back the temperature and pressure values of the high-pressure stage refrigerant, and the temperature and pressure sensor a501 feeds back the temperature and pressure values of the low-pressure stage refrigerant.
Example 7
As shown in fig. 7, fig. 7 is a reference diagram of air conditioning heating and battery cooling mode states, in which electromagnetic shutoff valve C508, electromagnetic shutoff valve E510, and electromagnetic shutoff valve F512 are opened, electromagnetic shutoff valve B507, electromagnetic shutoff valve D509, and electromagnetic shutoff valve a504 are closed, electronic expansion valve a503, and electronic expansion valve C511 are opened, and electronic expansion valve B506 is closed; the blower 205 and the electronic fan 301 are in an operating state; the temperature damper 203 is in an open state; the water pump 402 is in operation.
The refrigerant flow direction is that the compressor 100-the indoor condenser 202, and then the refrigerant flow direction is divided into two paths, wherein one path is that an electronic expansion valve A503-the outdoor condenser 300-an electromagnetic stop valve E510-a gas-liquid separator 500; the other path is an electromagnetic stop valve C508-an electromagnetic stop valve F512-an electronic expansion valve C511-a plate type heat exchanger 401-a gas-liquid separator 500; the two paths of refrigerant join at the liquid separator 500 and enter the compressor 100.
The compressor 100 is used as a power source to provide power for the flow of the refrigerant, the temperature air door 203 is opened, the refrigerant is cooled in the indoor condenser 202, the air flowing through the surface of the indoor condenser 202 is heated, and the hot air enters the cab under the action of the blower 205 to heat the cab, so that the air conditioner heating function is realized; the refrigerant flows out from the indoor condenser 202, and enters the gas-liquid separator 500 after being throttled by the electronic expansion valve A503, evaporated and absorbed in the outdoor condenser 300. The other path enters the plate heat exchanger 401 after the throttling action of the electronic expansion valve C511, at this time, the water pump 402 starts to work, the temperature of the cooling liquid and the refrigerating fluid is reduced after heat exchange cooling liquid releases heat in the plate heat exchanger 401, and the low-temperature cooling liquid is circulated to the battery pack 403 to cool the battery under the action of the water pump 402.
The temperature and pressure sensor B502 feeds back the temperature and pressure values of the high-pressure stage refrigerant, and the temperature and pressure sensor a501 feeds back the temperature and pressure values of the low-pressure stage refrigerant.
Example 8
As shown in fig. 8, fig. 8 is a reference diagram of air conditioning, dehumidification, heating and battery cooling modes, in which electromagnetic stop valve B507, electromagnetic stop valve C508 and electromagnetic stop valve F512 are opened, electromagnetic stop valve D509, electromagnetic stop valve E510 and electromagnetic stop valve a504 are closed, electronic expansion valve B506 and electronic expansion valve C511 are opened, and electronic expansion valve a503 is closed; the blower 205 and the electronic fan 301 are in an operating state; the temperature damper 203 is in an open state; the water pump 402 is in operation.
The refrigerant flow direction is that the compressor 100-the indoor condenser 202-the electromagnetic stop valve C508, and then the refrigerant flow direction is divided into two paths, wherein one path is that the electromagnetic stop valve B507-the electronic expansion valve B506-the indoor evaporator 204-the gas-liquid separator 500; the other path is an electromagnetic stop valve F512-an electronic expansion valve C511-a plate type heat exchanger 401-a gas-liquid separator 500; the two paths of refrigeration are merged by the gas-liquid separator 500 and then enter the compressor 100.
The compressor 100 serves as a power source for supplying power to the flow of refrigerant, the refrigerant is cooled in the indoor condenser 202, and air flowing through the surface of the indoor condenser 202 is heated; one path of refrigerant flows out of the indoor condenser 202, passes through the electronic expansion valve B506 and then evaporates and absorbs heat in the indoor evaporator 204, air flowing through the indoor evaporator 204 is cooled, and meanwhile, moisture in the air forms condensed water and is discharged; under the action of the blower 205, the air flows through the indoor evaporator 204, is dried and cooled, and then flows through the surface of the indoor condenser 202 to be heated, thereby realizing the dehumidifying and heating functions of the air conditioner. The other path enters the plate heat exchanger 401 after the throttling action of the electronic expansion valve C511, at this time, the water pump 402 starts to work, the cooling liquid and the refrigerant exchange heat in the plate heat exchanger 401, the temperature of the cooling liquid is reduced after heat release, and the low-temperature cooling liquid is circulated to the battery pack 403 to cool the battery under the action of the water pump 402.
The temperature and pressure sensor B502 feeds back the temperature and pressure values of the high-pressure stage refrigerant, and the temperature and pressure sensor a501 feeds back the temperature and pressure values of the low-pressure stage refrigerant.
Example 9
The PTC auxiliary heating mode, the heat pump air conditioner heating can not meet the driving heating requirement under the low temperature working condition, and the air PTC201 is needed for auxiliary heating at the moment. On the basis that the air conditioner is in the working condition of heating (air conditioner heating mode, air conditioner dehumidification heating mode, air conditioner dehumidification heating mode and battery cooling mode), the air PTC201 can be simultaneously opened, the air PT,201 are adjustable in multiple gears, and the air heated by the indoor condenser 202 is secondarily heated when flowing through the air PTC201, so that larger heating capacity is provided for a cab.
Claims (6)
1. An integrated battery cooling heat pump air conditioning system of a pure electric commercial vehicle is characterized in that: comprises a compressor (100), an air conditioning box assembly (200), an outdoor condenser (300), a battery cooling assembly (400) and a gas-liquid separator (500); an exhaust port arranged on the gas-liquid separator (500) is connected with an air suction port arranged on the compressor (100) through a pipeline, and a liquid discharge port arranged on the gas-liquid separator (500) is respectively connected with an air conditioning box assembly (200), an outdoor condenser (300) and a battery cooling assembly (400) through pipelines; an exhaust port of the compressor (100) is connected with the air conditioning box assembly (200), and the air conditioning box assembly (200) is connected with the battery cooling assembly (400) through the outdoor condenser (300); the compressor (100), the air conditioning box assembly (200), the outdoor condenser (300), the battery cooling assembly (400) and the gas-liquid separator (500) are respectively and electrically connected with the controller.
2. The battery cooling heat pump air conditioning system integrated with a pure electric commercial vehicle according to claim 1, wherein a liquid outlet arranged on the gas-liquid separator (500) is provided with a temperature pressure sensor A (501), and the temperature pressure sensor A (501) is respectively connected with an air conditioning box assembly (200), an outdoor condenser (300) and a battery cooling assembly (400) through pipelines.
3. The integrated battery-cooled heat pump air conditioning system of an electric only utility vehicle of claim 2, wherein the air conditioning case assembly (200) includes an air PTC (201), an indoor condenser (202), a temperature damper (203), an indoor evaporator (204), and a blower (205); an exhaust port of the compressor (100) is connected with an a-port pipeline of the indoor condenser (202); the port b of the indoor condenser (202) is connected with the port c of the outdoor condenser (300) through a pipeline, and the port d of the outdoor condenser (300) is connected with the battery cooling assembly (400) through a pipeline; a temperature and pressure sensor B (502) and an electronic expansion valve A (503) are sequentially arranged on a connecting pipeline between a port B of the indoor condenser (202) and a port C of the outdoor condenser (300), and an electromagnetic stop valve A (504) and a temperature and pressure sensor C (505) are sequentially arranged on a connecting pipeline between a port d of the outdoor condenser (300) and the battery cooling assembly (400);
the temperature and pressure sensor A (501) is connected with an e port of the indoor evaporator (204), and an f port of the indoor evaporator (204) is sequentially connected with an electronic expansion valve B (506) and an electromagnetic stop valve B (507); the electromagnetic stop valve B (507) is connected between the temperature and pressure sensor B (502) and the electronic expansion valve A (503) through an electromagnetic stop valve C (508), and is connected with a rear end pipeline of the electronic expansion valve A (503) through an electromagnetic stop valve D (509); the electromagnetic stop valve B (507) is also connected between the temperature and pressure sensor C (505) and the battery cooling component (400) through a pipeline.
4. The battery-cooled heat pump air conditioning system of an electric only utility vehicle of claim 1, wherein the outdoor condenser (300) is provided with an electronic fan (301), the electronic fan (301) being electrically connected to the controller through the outdoor condenser (300).
5. The battery-cooled heat pump air conditioning system of an electric only commercial vehicle according to claim 2, wherein the temperature and pressure sensor a (501) is connected to the g port of the outdoor condenser (300) through an electromagnetic shut-off valve E (510).
6. The integrated battery cooling heat pump air conditioning system of a pure electric commercial vehicle according to claim 3, wherein the battery cooling assembly (400) comprises a plate heat exchanger (401), a water pump (402), a battery pack (403) and a water tank (404); the plate type heat exchanger (401) is provided with a water outlet which is sequentially connected with the water pump (402) and the battery pack (403), and the battery pack (403) is connected with a water return port arranged on the plate type heat exchanger (401); a liquid inlet arranged on the plate heat exchanger (401) is connected with the temperature and pressure sensor C (505) through an electronic expansion valve C (511) and an electromagnetic stop valve F (512) in a pipeline way; and a liquid return port arranged on the plate type heat exchanger (401) is connected with the temperature and pressure sensor A (501) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202320993618.7U CN220163628U (en) | 2023-04-27 | 2023-04-27 | Integrated battery cooling heat pump air conditioning system of pure electric commercial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320993618.7U CN220163628U (en) | 2023-04-27 | 2023-04-27 | Integrated battery cooling heat pump air conditioning system of pure electric commercial vehicle |
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| CN220163628U true CN220163628U (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320993618.7U Active CN220163628U (en) | 2023-04-27 | 2023-04-27 | Integrated battery cooling heat pump air conditioning system of pure electric commercial vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN220163628U (en) |
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2023
- 2023-04-27 CN CN202320993618.7U patent/CN220163628U/en active Active
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