Refrigerant flow channel integration device

Abstract

The utility model provides a refrigerant flow channel integration device. The refrigerant flow channel integration device comprises an integration body, the runner structure is arranged in the set body and comprises a first main runner, a second main runner, a third main runner, a fourth main runner, a first branch runner, a second branch runner, a third branch runner, a fourth branch runner and a fifth branch runner; the first main flow channel and the first branch flow channel can be connected and disconnected, and one end of the first branch flow channel is a cockpit evaporator inlet. One end of the second branch flow channel is a cockpit evaporator outlet, one end of the third branch flow channel is a second heat exchanger inlet, and the second branch flow channel and the third branch flow channel can be connected and disconnected; two ends of the second main flow channel are an outdoor heat exchanger outlet and a first heat exchanger inlet; one end of the third main flow channel is a second heat exchanger outlet, one end of the fourth branch flow channel is a gas-liquid separator inlet, and one end of the fifth branch flow channel is a first heat exchanger outlet; the third main flow channel is communicated with the fourth main flow channel; and the fourth main flow channel is communicated with the fourth branch flow channel and the fifth branch flow channel. The vehicle thermal management system solves the problem that in the prior art, the integration level of the vehicle thermal management system is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, specifically, relate to a kind of refrigerant flow passage integrated device. BACKGROUND

[0002] At present, with the popularity of electric vehicles, vehicle thermal management system becomes more and more complex, due to the low integration of thermal management system, resulting in the increase of refrigerant pipeline (usually metal pipe or rubber tube), the risk of refrigerant leakage also increases, thereby increasing the maintenance difficulty of staff. SUMMARY

[0003] The main purpose of the utility model is to provide a kind of refrigerant flow passage integrated device, to solve the problem of low integration of vehicle thermal management system in prior art and increase the refrigeration machine leakage risk.

[0004] In order to achieve the above purpose, the utility model provides a kind of refrigerant flow passage integrated device, including: integrated body;Flow channel structure, set in integrated body, flow channel structure includes first total flow channel, second total flow channel, third total flow channel, fourth total flow channel, first branch flow channel, second branch flow channel, third branch flow channel, fourth branch flow channel and fifth branch flow channel;The first end of first total flow channel is compressor outlet, the second end of first total flow channel and the first end of first branch flow channel are set to be breakable, the second end of first branch flow channel is cockpit evaporator inlet;The first end of second branch flow channel is cockpit evaporator outlet, the first end of third branch flow channel is second heat exchanger inlet, the second end of second branch flow channel is set to be breakable with the second end of third branch flow channel through second total flow channel;The first end of second total flow channel is outdoor heat exchanger outlet, the second end of second total flow channel is first heat exchanger inlet;The first end of third total flow channel is second heat exchanger outlet, the first end of fourth branch flow channel is gas-liquid separator inlet, the first end of fifth branch flow channel is first heat exchanger outlet;The second end of third total flow channel communicates with fourth total flow channel;The first end of fourth total flow channel and the second end of fourth branch flow channel, the second end of fifth branch flow channel are all communicated;Among them, compressor outlet communicates with compressor exhaust port;Refrigerant flow passage integrated device has first state and second state, when refrigerant flow passage integrated device is in first state, gas-liquid separator inlet communicates with compressor suction port, first total flow channel and first branch flow channel are communicated, second branch flow channel and third branch flow channel are communicated, and second heat exchanger inlet and second heat exchanger outlet are all connected with first heat exchanger located on the side of power battery water circuit;When refrigerant flow passage integrated device is in second state, gas-liquid separator inlet communicates with compressor suction port, first total flow channel and first branch flow channel are communicated, second branch flow channel and third branch flow channel are disconnected, and first heat exchanger inlet and first heat exchanger outlet are all connected with second heat exchanger located on the side of electric drive water circuit.

[0005] Further, the refrigerant flow channel integrated device further comprises a first control valve arranged on the first branch flow channel, for controlling the on-off state of the first branch flow channel and / or the flow rate or flow velocity of the refrigerant in the first branch flow channel.

[0006] Further, the refrigerant flow channel integrated device further comprises a second control valve arranged on the third branch flow channel, for controlling the on-off state of the third branch flow channel and / or the flow rate or flow velocity of the refrigerant in the third branch flow channel; and a control module electrically connected with the second control valve.

[0007] Further, the refrigerant flow channel integrated device further comprises a third control valve arranged on the second total flow channel, for controlling the on-off state of the outdoor heat exchanger outlet and the first heat exchanger inlet and / or the flow rate or flow velocity of the refrigerant in the second total flow channel; wherein the third control valve is electrically connected with the control module; when the refrigerant flow channel integrated device is in the first state, the second control valve is controlled to be in an open state and the third control valve is controlled to be in a closed state by the control module; when the refrigerant flow channel integrated device is in the second state, the second control valve is controlled to be in a closed state and the third control valve is controlled to be in an open state by the control module.

[0008] Further, the flow channel structure further comprises a sixth branch flow channel, a first end of the sixth branch flow channel being the outdoor heat exchanger inlet, and a second end of the sixth branch flow channel being arranged in the first total flow channel in an on-off manner; and a fourth control valve arranged on the sixth branch flow channel, for controlling the on-off state of the sixth branch flow channel and / or the flow rate or flow velocity of the refrigerant in the sixth branch flow channel; wherein the refrigerant flow channel integrated device further has a third state, when the refrigerant flow channel integrated device is in the third state, the gas-liquid separator inlet is in communication with the compressor suction port, the outdoor heat exchanger inlet and the outdoor heat exchanger outlet are both connected with the outdoor heat exchanger; the first total flow channel is disconnected from the first branch flow channel, the first total flow channel is in communication with the sixth branch flow channel, the second branch flow channel is in communication with the third branch flow channel, and the second heat exchanger inlet and the second heat exchanger outlet are both connected with the first heat exchanger.

[0009] Further, the communication position of the second total flow channel with the third branch flow channel is position A, the communication position of the second branch flow channel with the second total flow channel is position B, and position B is located between position A and the outdoor heat exchanger outlet; wherein position A is located between position B and the third control valve.

[0010] Further, the refrigerant flow channel integrated device further comprises a fifth control valve arranged on the fourth total flow channel to control the opening and closing state of the fourth total flow channel and the first branch flow channel; wherein the refrigerant flow channel integrated device further has a fourth state, when the refrigerant flow channel integrated device is in the fourth state, the gas-liquid separator inlet is communicated with the compressor suction port, the outdoor heat exchanger inlet and the outdoor heat exchanger outlet are both connected with the outdoor heat exchanger, the cabin evaporator outlet and the cabin evaporator inlet are both connected with the indoor evaporator, so as to control the first control valve, the second control valve and the third control valve to be in the closed state by the control module, and control the fourth control valve and the fifth control valve to be in the open state.

[0011] Further, the refrigerant flow channel integrated device further has a fifth state, when the refrigerant flow channel integrated device is in the fifth state, the gas-liquid separator inlet is communicated with the compressor suction port, the outdoor heat exchanger inlet and the outdoor heat exchanger outlet are both connected with the outdoor heat exchanger, the second heat exchanger inlet and the second heat exchanger outlet are both connected with the first heat exchanger located on the water circuit side of the power battery, and the cabin evaporator outlet and the cabin evaporator inlet are both connected with the indoor evaporator; so as to control the first control valve and the third control valve to be in the closed state by the control module, and control the second control valve, the fourth control valve and the fifth control valve to be in the open state.

[0012] Further, the refrigerant flow channel integrated device further has a sixth state, when the refrigerant flow channel integrated device is in the sixth state, the cabin evaporator outlet and the cabin evaporator inlet are both connected with the indoor evaporator, and the outdoor heat exchanger outlet and the compressor suction port are both connected with the outdoor heat exchanger; so as to control the first control valve to be in the open state by the control module, and control the second control valve, the third control valve, the fourth control valve and the fifth control valve to be in the closed state.

[0013] Further, the second control valve and the third control valve are electronic expansion valves; and / or, the first control valve, the fourth control valve and the fifth control valve are stop valves.

[0014] The technical scheme of the utility model discloses a refrigerant flow channel integrated device, which comprises a collection body and a flow channel structure, the flow channel structure is arranged in the collection body, and the flow channel structure comprises a first total flow channel, a second total flow channel, a third total flow channel, a fourth total flow channel, a first branch flow channel, a second branch flow channel, a third branch flow channel, a fourth branch flow channel and a fifth branch flow channel. The first end of the first total flow channel is a compressor outlet, the second end of the first total flow channel and the first end of the first branch flow channel are arranged to be switchable, and the second end of the first branch flow channel is a cockpit evaporator inlet. The first end of the second branch flow channel is a cockpit evaporator outlet, the first end of the third branch flow channel is a second heat exchanger inlet, the second end of the second branch flow channel and the second end of the third branch flow channel are arranged to be switchable through the second total flow channel. The first end of the second total flow channel is an outdoor heat exchanger outlet, and the second end of the second total flow channel is a first heat exchanger inlet. The first end of the third total flow channel is a second heat exchanger outlet, the first end of the fourth branch flow channel is a gas-liquid separator inlet, and the first end of the fifth branch flow channel is a first heat exchanger outlet. The second end of the third total flow channel is communicated with the fourth total flow channel. The first end of the fourth total flow channel is communicated with the second end of the fourth branch flow channel and the second end of the fifth branch flow channel. The compressor outlet is communicated with a compressor exhaust port. The refrigerant flow channel integrated device has a first state and a second state. When the refrigerant flow channel integrated device is in the first state, the gas-liquid separator inlet is communicated with a compressor suction port, the first total flow channel is communicated with the first branch flow channel, the second branch flow channel is communicated with the third branch flow channel, the second heat exchanger inlet and the second heat exchanger outlet are connected with the first heat exchanger located on the water circuit side of the power battery. When the refrigerant flow channel integrated device is in the second state, the gas-liquid separator inlet is communicated with the compressor suction port, the first total flow channel is communicated with the first branch flow channel, the second branch flow channel is disconnected with the third branch flow channel, the first heat exchanger inlet and the first heat exchanger outlet are connected with the second heat exchanger located on the water circuit side of the electric drive. In this way, the refrigerant flow channel integrated device is provided with multiple flow channels, multiple inlets and multiple outlets. The inlets and the outlets can be connected with external equipment such as compressors and heat exchangers. The flow channels can flow with refrigerants. The refrigerant flow channel integrated device has more functions, improved integration, reduced refrigerant pipeline layout, avoided excessive and long pipelines in the prior art, and reduced maintenance, vehicle layout and installation difficulties. The vehicle weight is also reduced.

[0015] Compared with the pipeline of the vehicle thermal management system in the prior art, the refrigerant flow channel integrated device has high integration, reduced pipeline usage, reduced refrigerant leakage safety hazards, and solved the problem of low integration of the vehicle thermal management system in the prior art and increased refrigerant leakage risk. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings accompanying the specification of the present application serve to provide further understanding of the present application, and the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A perspective structural schematic view of an embodiment of the refrigerant flow channel integrated device according to the present application is shown;

[0018] Figure 2 A perspective structural schematic view of an embodiment of the refrigerant flow channel integrated device according to the present application is shown; Figure 1 A perspective structural schematic view of an embodiment of the refrigerant flow channel integrated device according to the present application is shown.

[0019] Among them, the above drawings include the following reference signs:

[0020] 1, outdoor heat exchanger inlet; 2, outdoor heat exchanger outlet; 3, cockpit evaporator outlet; 4, gas-liquid separator inlet; 5, cockpit evaporator inlet; 6, compressor outlet; 10, integrated body; 11, first total flow channel; 12, second total flow channel; 13, third total flow channel; 14, fourth total flow channel; 15, first branch flow channel; 16, second branch flow channel; 17, third branch flow channel; 18, fourth branch flow channel; 19, fifth branch flow channel; 20, first heat exchanger inlet; 21, first heat exchanger outlet; 22, second heat exchanger inlet; 23, second heat exchanger outlet; 31, first control valve; 32, second control valve; 33, third control valve; 34, fourth control valve; 35, fifth control valve; 40, sixth branch flow channel. DETAILED DESCRIPTION

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0023] In the present application, unless otherwise specified, the orientation words such as "up, down" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left, right" are generally directed to the left and right shown in the drawings; "inner, outer" refer to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0024] In order to solve the problem of low integration of the vehicle thermal management system in the prior art and increase the risk of refrigeration machine leakage, the present application provides a refrigerant flow channel integrated device.

[0025] As Figure 1 and Figure 2 shown, the refrigerant flow channel integrated device includes an integrated body 10 and a flow channel structure, the flow channel structure is arranged in the integrated body 10, and the flow channel structure includes a first total flow channel 11, a second total flow channel 12, a third total flow channel 13, a fourth total flow channel 14, a first branch flow channel 15, a second branch flow channel 16, a third branch flow channel 17, a fourth branch flow channel 18 and a fifth branch flow channel 19. A first end of the first total flow channel 11 is a compressor outlet 6, a second end of the first total flow channel 11 is arranged in an openable and closable mode with a first end of the first branch flow channel 15, and a second end of the first branch flow channel 15 is a cabin evaporator inlet 5. A first end of the second branch flow channel 16 is a cabin evaporator outlet 3, a first end of the third branch flow channel 17 is a second heat exchanger inlet 22, and a second end of the second branch flow channel 16 is arranged in an openable and closable mode with a second end of the third branch flow channel 17 through the second total flow channel 12. A first end of the second total flow channel 12 is an outdoor heat exchanger outlet 2, and a second end of the second total flow channel 12 is a first heat exchanger inlet 20. A first end of the third total flow channel 13 is a second heat exchanger outlet 23, a first end of the fourth branch flow channel 18 is a gas-liquid separator inlet 4, and a first end of the fifth branch flow channel 19 is a first heat exchanger outlet 21. A second end of the third total flow channel 13 communicates with the fourth total flow channel 14, and a first end of the fourth total flow channel 14 communicates with a second end of the fourth branch flow channel 18 and a second end of the fifth branch flow channel 19. The compressor outlet 6 communicates with a compressor exhaust port. The refrigerant flow channel integrated device has a first state and a second state. When the refrigerant flow channel integrated device is in the first state, the gas-liquid separator inlet 4 communicates with a compressor suction port, the first total flow channel 11 communicates with the first branch flow channel 15, the second branch flow channel 16 communicates with the third branch flow channel 17, the second heat exchanger inlet 22 and the second heat exchanger outlet 23 are connected with the first heat exchanger located on the side of the power battery water circuit. When the refrigerant flow channel integrated device is in the second state, the gas-liquid separator inlet 4 communicates with the compressor suction port, the first total flow channel 11 communicates with the first branch flow channel 15, the second branch flow channel 16 is disconnected from the third branch flow channel 17, the first heat exchanger inlet 20 and the first heat exchanger outlet 21 are connected with the second heat exchanger located on the side of the electric drive water circuit.

[0026] By applying the technical scheme in the embodiment, the refrigerant flow channel integrated device is provided with multiple flow channels, multiple inlets and multiple outlets. The inlets and the outlets can be connected with external devices such as compressors and heat exchangers. The flow channels can flow refrigerant, thereby giving the refrigerant flow channel integrated device more functions, improving the integration degree of the refrigerant flow channel integrated device, reducing the layout of the refrigerant pipeline, avoiding the problem of excessive and long pipelines caused by directly connecting pipelines in the prior art, thereby reducing the difficulty of maintenance, the difficulty of vehicle layout and the difficulty of installation, and the weight of the vehicle is also reduced.

[0027] Compared with the pipeline of the vehicle thermal management system in the prior art, the integration degree of the refrigerant flow channel integration device in the embodiment is high, the number of pipelines used is reduced, and the safety hazard of refrigerant leakage is reduced, thereby solving the problem of low integration degree of the vehicle thermal management system in the prior art and increasing the refrigeration machine leakage risk.

[0028] In the embodiment, when the refrigerant flow channel integration device is in the first state or the second state, the cabin is heated in a water source heat pump heating mode to achieve water source heat pump heating of the cabin.

[0029] Specifically, when the refrigerant flow channel integration device is in the first state, the compressor exhaust port is connected with the compressor outlet 6, the fifth control valve 35 and the fourth control valve 34 are closed, and the first control valve 31 is opened, so that the first total flow channel 11 and the first branch flow channel 15 are communicated. One end of the indoor evaporator is connected with the cabin evaporator inlet 5, and the other end is connected with the cabin evaporator outlet 3. The third control valve 33 is fully closed, the refrigerant passes through the second branch flow channel 16, the second total flow channel 12, the second control valve 32, and the third branch flow channel 17, is connected with one end of the first heat exchanger located on the power battery water circuit side through the second heat exchanger inlet 22, the other end of the first heat exchanger is connected with the second heat exchanger outlet 23, and the refrigerant passes through the third total flow channel 13, the fourth total flow channel 14, and the fourth branch flow channel 18, and is connected with the compressor suction port through the gas-liquid separator inlet 4. In this way, the indoor evaporator functions as a condenser to release heat, to heat the air entering the cabin, and to absorb the heat on the water side through the first heat exchanger, thereby achieving water source heat pump heating of the cabin.

[0030] Specifically, when the refrigerant flow channel integration device is in the second state, the compressor exhaust port is connected with the compressor outlet 6, the fifth control valve 35 and the fourth control valve 34 are closed, and the first control valve 31 is opened, so that the first total flow channel 11 and the first branch flow channel 15 are communicated. One end of the indoor evaporator is connected with the cabin evaporator inlet 5, and the other end is connected with the cabin evaporator outlet 3. The second control valve 32 is fully closed, the refrigerant passes through the second branch flow channel 16, the third control valve 33, and the second total flow channel 12, is connected with one end of the second heat exchanger located on the electric drive water circuit side through the first heat exchanger inlet 20, the other end of the second heat exchanger is connected with the first heat exchanger outlet 21, and the refrigerant passes through the fourth branch flow channel 18 and the gas-liquid separator inlet 4 and is connected with the compressor suction port. In this way, the indoor evaporator functions as a condenser to release heat, to heat the air entering the cabin, and to absorb the heat on the water side through the second heat exchanger, thereby achieving water source heat pump heating of the cabin.

[0031] As Figure 1 and Figure 2As shown in FIG. 1, the refrigerant flow channel integrated device further comprises a first control valve 31. The first control valve 31 is arranged on the first branch flow channel 15 to control the on-off state of the first branch flow channel 15 and / or the flow rate or flow speed of the refrigerant in the first branch flow channel 15. In this way, the fine adjustment capability of the first control valve 31 enables the cabin to quickly respond to the temperature requirements of the passengers, whether it is rapid cooling or gentle heating, and the set comfortable temperature can be reached in a short time. At the same time, the above arrangement improves the intelligent degree of the refrigerant flow channel integrated device.

[0032] As shown in FIG. 1, the refrigerant flow channel integrated device further comprises a first control valve 31. The first control valve 31 is arranged on the first branch flow channel 15 to control the on-off state of the first branch flow channel 15 and / or the flow rate or flow speed of the refrigerant in the first branch flow channel 15. In this way, the fine adjustment capability of the first control valve 31 enables the cabin to quickly respond to the temperature requirements of the passengers, whether it is rapid cooling or gentle heating, and the set comfortable temperature can be reached in a short time. At the same time, the above arrangement improves the intelligent degree of the refrigerant flow channel integrated device. Figure 1 Figure 2 As shown in FIG. 1, the refrigerant flow channel integrated device further comprises a second control valve 32 and a control module. The second control valve 32 is arranged on the third branch flow channel 17 to control the on-off state of the third branch flow channel 17 and / or the flow rate or flow speed of the refrigerant in the third branch flow channel 17. The control module is electrically connected with the second control valve 32. In this way, the above arrangement improves the intelligent degree of the refrigerant flow channel integrated device.

[0033] As shown in FIG. 1, the refrigerant flow channel integrated device further comprises a third control valve 33, which is arranged on the second total flow channel 12 to control the on-off state of the outdoor heat exchanger outlet 2 and the first heat exchanger inlet 20 and / or the flow rate or flow speed of the refrigerant in the second total flow channel 12. The third control valve 33 is electrically connected with the control module; when the refrigerant flow channel integrated device is in the first state, the second control valve 32 is controlled to be in the open state and the third control valve 33 is controlled to be in the closed state by the control module; when the refrigerant flow channel integrated device is in the second state, the second control valve 32 is controlled to be in the closed state and the third control valve 33 is controlled to be in the open state by the control module. Figure 1 Figure 2 As shown in FIG. 1, the refrigerant flow channel integrated device further comprises a third control valve 33, which is arranged on the second total flow channel 12 to control the on-off state of the outdoor heat exchanger outlet 2 and the first heat exchanger inlet 20 and / or the flow rate or flow speed of the refrigerant in the second total flow channel 12. The third control valve 33 is electrically connected with the control module; when the refrigerant flow channel integrated device is in the first state, the second control valve 32 is controlled to be in the open state and the third control valve 33 is controlled to be in the closed state by the control module; when the refrigerant flow channel integrated device is in the second state, the second control valve 32 is controlled to be in the closed state and the third control valve 33 is controlled to be in the open state by the control module.

[0034] As shown in FIG. 1, the refrigerant flow channel integrated device further comprises a third control valve 33, which is arranged on the second total flow channel 12 to control the on-off state of the outdoor heat exchanger outlet 2 and the first heat exchanger inlet 20 and / or the flow rate or flow speed of the refrigerant in the second total flow channel 12. The third control valve 33 is electrically connected with the control module; when the refrigerant flow channel integrated device is in the first state, the second control valve 32 is controlled to be in the open state and the third control valve 33 is controlled to be in the closed state by the control module; when the refrigerant flow channel integrated device is in the second state, the second control valve 32 is controlled to be in the closed state and the third control valve 33 is controlled to be in the open state by the control module. Figure 1 Figure 2 As shown in FIG. 1, the refrigerant flow channel integrated device further comprises a third control valve 33, which is arranged on the second total flow channel 12 to control the on-off state of the outdoor heat exchanger outlet 2 and the first heat exchanger inlet 20 and / or the flow rate or flow speed of the refrigerant in the second total flow channel 12. The third control valve 33 is electrically connected with the control module; when the refrigerant flow channel integrated device is in the first state, the second control valve 32 is controlled to be in the open state and the third control valve 33 is controlled to be in the closed state by the control module; when the refrigerant flow channel integrated device is in the second state, the second control valve 32 is controlled to be in the closed state and the third control valve 33 is controlled to be in the open state by the control module. ​​​

[0035] Specifically, the compressor discharge port is connected with the compressor outlet 6, the fifth control valve 35 and the first control valve 31 are both closed, the fourth control valve 34 is opened, at this time, the first total flow passage 11 and the sixth branch flow passage 40 are communicated. One end of the outdoor heat exchanger is connected with the outdoor heat exchanger inlet 1, and the other end is connected with the outdoor heat exchanger outlet 2. The third control valve 33 is fully closed, the refrigerant passes through the second total flow passage 12, the second control valve 32 and the third branch flow passage 17, is connected with one end of the first heat exchanger located on the water side of the power battery through the second heat exchanger inlet 22, the other end of the first heat exchanger is connected with the second heat exchanger outlet 23, and after passing through the third total flow passage 13, the fourth total flow passage 14 and the fourth branch flow passage 18, the refrigerant is connected with the compressor suction port through the gas-liquid separator inlet 4. In this way, the refrigerant releases heat through the outdoor heat exchanger, and absorbs the heat of the water side of the power battery through the first heat exchanger, so as to realize active cooling of the power battery.

[0036] In the embodiment, the communication position of the second total flow passage 12 and the third branch flow passage 17 is position A, the communication position of the second branch flow passage 16 and the second total flow passage 12 is position B, and position B is located between position A and the outdoor heat exchanger outlet 2; wherein, position A is located between position B and the third control valve 33.

[0037] As shown in Figure 1 and Figure 2 , the refrigerant flow passage integrated device further comprises a fifth control valve 35, the fifth control valve 35 is arranged on the fourth total flow passage 14, and is used to control the on-off state of the fourth total flow passage 14 and the first branch flow passage 15. Wherein, the refrigerant flow passage integrated device further has a fourth state, when the refrigerant flow passage integrated device is in the fourth state, the gas-liquid separator inlet 4 is communicated with the compressor suction port, the outdoor heat exchanger inlet 1 and the outdoor heat exchanger outlet 2 are both connected with the outdoor heat exchanger, the cabin evaporator outlet 3 and the cabin evaporator inlet 5 are both connected with the indoor evaporator, so as to control the first control valve 31, the second control valve 32 and the third control valve 33 to be in the closed state by the control module, and control the fourth control valve 34 and the fifth control valve 35 to be in the opened state.

[0038] Specifically, the compressor exhaust port is connected with the compressor outlet 6, the first control valve 31 is closed, the fifth control valve 35 and the fourth control valve 34 are opened, and the first total flow channel 11 and the sixth branch flow channel 40 are communicated. One end of the outdoor heat exchanger is connected with the outdoor heat exchanger inlet 1, and the other end is connected with the outdoor heat exchanger outlet 2. The third control valve 33 and the second control valve 32 are both closed, the refrigerant flows in the second total flow channel 12 and the second branch flow channel 16, is connected with one end of the indoor evaporator through the cabin evaporator outlet 3, is connected with the other end of the indoor evaporator through the cabin evaporator inlet 5, and is connected with the compressor suction port through the gas-liquid separator inlet 4 after passing through the fourth total flow channel 14 and the fourth branch flow channel 18. In this way, the refrigerant releases heat through the outdoor heat exchanger, and absorbs the heat of the air entering the cabin through the indoor evaporator, so as to realize cabin cooling.

[0039] In the embodiment, the refrigerant flow channel integration device also has a fifth state. When the refrigerant flow channel integration device is in the fifth state, the gas-liquid separator inlet 4 is communicated with the compressor suction port, the outdoor heat exchanger inlet 1 and the outdoor heat exchanger outlet 2 are both connected with the outdoor heat exchanger, the second heat exchanger inlet 22 and the second heat exchanger outlet 23 are both connected with the first heat exchanger located on the power battery water side, and the cabin evaporator outlet 3 and the cabin evaporator inlet 5 are both connected with the indoor evaporator. The first control valve 31 and the third control valve 33 are controlled to be in a closed state by the control module, and the second control valve 32, the fourth control valve 34 and the fifth control valve 35 are controlled to be in an open state.

[0040] Specifically, the compressor exhaust port is connected with the compressor outlet 6, the first control valve 31 is closed, the fifth control valve 35 and the fourth control valve 34 are opened, and the first total flow channel 11 and the sixth branch flow channel 40 are communicated. One end of the outdoor heat exchanger is connected with the outdoor heat exchanger inlet 1, and the other end is connected with the outdoor heat exchanger outlet 2. The third control valve 33 is closed, and the refrigerant in the second total flow channel 12 is divided into two paths: one path passes through the second total flow channel 12, the second control valve 32 and the third branch flow channel 17, is connected with one end of the first heat exchanger located on the power battery water side through the second heat exchanger inlet 22, the other end of the second heat exchanger is connected with the second heat exchanger outlet 23, and the refrigerant passes through the third total flow channel 13; the other path passes through the second total flow channel 12 and the second branch flow channel 16, is connected with one end of the indoor evaporator through the cabin evaporator outlet 3, and the other end of the indoor evaporator is connected with the cabin evaporator inlet 5. The two paths of refrigerant are combined in the fourth total flow channel 14, and are connected with the compressor suction port through the gas-liquid separator inlet 4 after passing through the fourth branch flow channel 18. In this way, the refrigerant releases heat through the outdoor heat exchanger, and absorbs the heat of the air entering the cabin through the first heat exchanger and the indoor evaporator respectively, so as to realize cabin cooling and power battery cooling at the same time.

[0041] In the embodiment, the refrigerant flow channel integrated device further has a sixth state, when the refrigerant flow channel integrated device is in the sixth state, the cabin evaporator outlet 3 and the cabin evaporator inlet 5 are connected with the indoor evaporator, the outdoor heat exchanger outlet 2 and the compressor suction port are connected with the outdoor heat exchanger; by controlling the first control valve 31 to be in the open state and controlling the second control valve 32, the third control valve 33, the fourth control valve 34 and the fifth control valve 35 to be in the closed state through the control module.

[0042] Specifically, the compressor discharge port is connected with the compressor outlet 6, the fifth control valve 35 and the fourth control valve 34 are closed, the first control valve 31 is opened, at this time, the first total flow channel 11 and the sixth branch flow channel 40 are communicated, one end of the indoor evaporator is connected with the cabin evaporator inlet 5 and the other end is connected with the cabin evaporator outlet 3. The third control valve 33 and the second control valve 32 are all closed, the refrigerant passes through the second total flow channel 12 and the second branch flow channel 16, is connected with one end of the outdoor heat exchanger through the outdoor heat exchanger outlet 2, and the other end of the outdoor heat exchanger is connected with the compressor suction port. In this way, the indoor evaporator acts as a condenser to release heat, heats the air entering the cabin, and absorbs heat through the outdoor heat exchanger, realizing the cabin air source heat pump heating.

[0043] Optionally, the second control valve 32 and the third control valve 33 are electronic expansion valves; and / or, the first control valve 31, the fourth control valve 34 and the fifth control valve 35 are stop valves. In this way, the above-mentioned setting makes the structure of the first control valve 31, the second control valve 32, the third control valve 33, the fourth control valve 34 and the fifth control valve 35 more simple, easy to process and realize, and further reduces the processing cost of the refrigerant flow channel integrated device.

[0044] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0045] The refrigerant flow channel integrated device comprises an integrated body and a flow channel structure, the flow channel structure is arranged in the integrated body, and the flow channel structure comprises a first total flow channel, a second total flow channel, a third total flow channel, a fourth total flow channel, a first branch flow channel, a second branch flow channel, a third branch flow channel, a fourth branch flow channel and a fifth branch flow channel. The first end of the first total flow channel is a compressor outlet, the second end of the first total flow channel is arranged in an openable and closable manner with the first end of the first branch flow channel, and the second end of the first branch flow channel is a cabin evaporator inlet. The first end of the second branch flow channel is a cabin evaporator outlet, the first end of the third branch flow channel is a second heat exchanger inlet, and the second end of the second branch flow channel is arranged in an openable and closable manner with the second end of the third branch flow channel. The first end of the second total flow channel is an outdoor heat exchanger outlet, and the second end of the second total flow channel is a first heat exchanger inlet; the first end of the third total flow channel is a second heat exchanger outlet, the first end of the fourth branch flow channel is a gas-liquid separator inlet, and the first end of the fifth branch flow channel is a first heat exchanger outlet. The second end of the third total flow channel is communicated with the fourth total flow channel, and the first end of the fourth total flow channel is communicated with the second end of the fourth branch flow channel and the second end of the fifth branch flow channel. The compressor outlet is communicated with a compressor exhaust port. The refrigerant flow channel integrated device has a first state and a second state. When the refrigerant flow channel integrated device is in the first state, the gas-liquid separator inlet is communicated with a compressor suction port, the first total flow channel is communicated with the first branch flow channel, the second branch flow channel is communicated with the third branch flow channel, the second heat exchanger inlet and the second heat exchanger outlet are connected with the first heat exchanger located on the water circuit side of the power battery; and when the refrigerant flow channel integrated device is in the second state, the gas-liquid separator inlet is communicated with the compressor suction port, the first total flow channel is communicated with the first branch flow channel, the second branch flow channel is disconnected with the third branch flow channel, and the first heat exchanger inlet and the first heat exchanger outlet are connected with the second heat exchanger located on the water circuit side of the electric drive. In this way, the refrigerant flow channel integrated device is provided with multiple flow channels, multiple inlets and multiple outlets, the inlets and the outlets can be connected with external equipment such as a compressor and a heat exchanger, refrigerant can flow in the flow channels, the refrigerant flow channel integrated device is further provided with more functions, the integration degree of the refrigerant flow channel integrated device is improved, the refrigerant pipeline layout is reduced, the problem of excessive and long pipelines caused by directly connecting pipelines in the prior art is avoided, and the maintenance difficulty, the vehicle layout difficulty and the installation difficulty are reduced, and the vehicle weight is also reduced.

[0046] Compared with the pipeline of the vehicle thermal management system in the prior art, the integration degree of the refrigerant flow channel integrated device in the application is high, the number of pipelines is reduced, the safety hazard of refrigerant leakage is reduced, and the problem of low integration degree of the vehicle thermal management system in the prior art and the increased refrigeration machine leakage risk is solved.

[0047] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0048] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0049] It should be noted that the terms "first", "second", and the like, used in the specification and the claims of the application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0050] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A coolant flow path integrated device, characterized by, Comprise: The body (10) of the collection; Flow channel structure, provided in the collection body (10), the flow channel structure comprises first total flow channel (11), second total flow channel (12), third total flow channel (13), fourth total flow channel (14), first branch flow channel (15), second branch flow channel (16), third branch flow channel (17), fourth branch flow channel (18) and fifth branch flow channel (19); The first end of the first total flow channel (11) is the compressor outlet (6), the second end of the first total flow channel (11) is provided with the first end of the first branch flow channel (15) and can be connected or disconnected, the second end of the first branch flow channel (15) is the cabin evaporator inlet (5). The first end of the second branch flow channel (16) is the cabin evaporator outlet (3), the first end of the third branch flow channel (17) is the second heat exchanger inlet (22), the second end of the second branch flow channel (16) is connected or disconnected with the second end of the third branch flow channel (17) through the second total flow channel (12); the first end of the second total flow channel (12) is the outdoor heat exchanger outlet (2), and the second end of the second total flow channel (12) is the first heat exchanger inlet (20); The first end of the third total flow channel (13) is the second heat exchanger outlet (23), the first end of the fourth branch flow channel (18) is the gas-liquid separator inlet (4), and the first end of the fifth branch flow channel (19) is the first heat exchanger outlet (21); the second end of the third total flow channel (13) is communicated with the fourth total flow channel (14); the first end of the fourth total flow channel (14) is communicated with the second end of the fourth branch flow channel (18) and the second end of the fifth branch flow channel (19); Wherein, the compressor outlet (6) is communicated with the compressor exhaust port; The refrigerant flow channel integrated device has a first state and a second state, when the refrigerant flow channel integrated device is in the first state, the gas-liquid separator inlet (4) is communicated with the compressor suction port, the first total flow channel (11) is communicated with the first branch flow channel (15), the second branch flow channel (16) is communicated with the third branch flow channel (17), the second heat exchanger inlet (22) and the second heat exchanger outlet (23) are connected with the first heat exchanger located on the side of the power battery water circuit; When the refrigerant flow channel integrated device is in the second state, the gas-liquid separator inlet (4) is communicated with the compressor suction port, the first total flow channel (11) is communicated with the first branch flow channel (15), the second branch flow channel (16) is disconnected with the third branch flow channel (17), the first heat exchanger inlet (20) and the first heat exchanger outlet (21) are connected with the second heat exchanger located on the side of the electric drive water circuit.

2. The coolant passage integrated device according to claim 1, characterized by The refrigerant flow channel integrated device further comprises: The first control valve (31) is provided on the first branch flow channel (15) for controlling the on-off state of the first branch flow channel (15) and / or the flow or flow rate of the refrigerant in the first branch flow channel (15).

3. The coolant passage integrated device according to claim 2, wherein The refrigerant flow channel integrated device further comprises: A second control valve (32) is arranged on the third branch flow passage (17) to control the on-off state of the third branch flow passage (17) and / or the flow rate or flow velocity of the refrigerant in the third branch flow passage (17); A control module is electrically connected with the second control valve (32).

4. The coolant passage integrated device according to claim 3, wherein The refrigerant flow passage integrated device further comprises: A third control valve (33) is arranged on the second total flow passage (12) to control the on-off state of the outdoor heat exchanger outlet (2) and the first heat exchanger inlet (20) and / or the flow rate or flow velocity of the refrigerant in the second total flow passage (12); The third control valve (33) is electrically connected with the control module; when the refrigerant flow passage integrated device is in the first state, the second control valve (32) is controlled to be in an open state and the third control valve (33) is controlled to be in a closed state by the control module; When the refrigerant flow passage integrated device is in the second state, the second control valve (32) is controlled to be in a closed state and the third control valve (33) is controlled to be in an open state by the control module.

5. The coolant passage integrated device according to claim 4, wherein The flow passage structure further comprises: A sixth branch flow passage (40) has an outdoor heat exchanger inlet (1) at a first end and is arranged in an on-off manner with the first total flow passage (11) at a second end; A fourth control valve (34) is arranged on the sixth branch flow passage (40) to control the on-off state of the sixth branch flow passage (40) and / or the flow rate or flow velocity of the refrigerant in the sixth branch flow passage (40); The refrigerant flow passage integrated device further has a third state; when the refrigerant flow passage integrated device is in the third state, the gas-liquid separator inlet (4) is in communication with the compressor suction port, the outdoor heat exchanger inlet (1) and the outdoor heat exchanger outlet (2) are both connected with the outdoor heat exchanger; the first total flow passage (11) is disconnected from the first branch flow passage (15), the first total flow passage (11) is in communication with the sixth branch flow passage (40), the second branch flow passage (16) is in communication with the third branch flow passage (17), and the second heat exchanger inlet (22) and the second heat exchanger outlet (23) are both connected with the first heat exchanger.

6. The coolant passage integrated device according to claim 4, wherein The communication position of the second total flow passage (12) and the third branch flow passage (17) is position A, the communication position of the second branch flow passage (16) and the second total flow passage (12) is position B, and the position B is located between the position A and the outdoor heat exchanger outlet (2); the position A is located between the position B and the third control valve (33).

7. The coolant passage integrated device according to claim 5, wherein The refrigerant flow passage integrated device further comprises: A fifth control valve (35) is arranged on the fourth total flow passage (14) to control the on-off state of the fourth total flow passage (14) and the first branch flow passage (15). The refrigerant flow channel integrated device further has a fourth state, when the refrigerant flow channel integrated device is in the fourth state, the gas-liquid separator inlet (4) is in communication with the compressor suction port, the outdoor heat exchanger inlet (1) and the outdoor heat exchanger outlet (2) are both connected with the outdoor heat exchanger, the cockpit evaporator outlet (3) and the cockpit evaporator inlet (5) are both connected with the indoor evaporator, so as to control the first control valve (31), the second control valve (32) and the third control valve (33) to be in the closed state by the control module, and control the fourth control valve (34) and the fifth control valve (35) to be in the open state.

8. The coolant passage integrated device according to claim 7, wherein The refrigerant flow channel integrated device further has a fifth state, when the refrigerant flow channel integrated device is in the fifth state, the gas-liquid separator inlet (4) is in communication with the compressor suction port, the outdoor heat exchanger inlet (1) and the outdoor heat exchanger outlet (2) are both connected with the outdoor heat exchanger, the second heat exchanger inlet (22) and the second heat exchanger outlet (23) are both connected with the first heat exchanger located on the water circuit side of the power battery, and the cockpit evaporator outlet (3) and the cockpit evaporator inlet (5) are both connected with the indoor evaporator; so as to control the first control valve (31) and the third control valve (33) to be in the closed state by the control module, and control the second control valve (32), the fourth control valve (34) and the fifth control valve (35) to be in the open state.

9. The coolant passage integrated device according to claim 7, wherein The refrigerant flow channel integrated device further has a sixth state, when the refrigerant flow channel integrated device is in the sixth state, the cockpit evaporator outlet (3) and the cockpit evaporator inlet (5) are both connected with the indoor evaporator, and the outdoor heat exchanger outlet (2) and the compressor suction port are both connected with the outdoor heat exchanger; so as to control the first control valve (31) to be in the open state by the control module, and control the second control valve (32), the third control valve (33), the fourth control valve (34) and the fifth control valve (35) to be in the closed state.

10. The coolant passage integrated device according to claim 7, wherein The second control valve (32) and the third control valve (33) are electronic expansion valves; and / or, the first control valve (31), the fourth control valve (34) and the fifth control valve (35) are stop valves.

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