An integrated flow channel plate for refrigerant side thermal management

Abstract

The application relates to the technical field of automobile thermal management systems, in particular to an integrated flow channel plate for refrigerant side thermal management, which comprises a flow channel plate, a condenser inlet connecting port and a water-cooled condenser inlet interface are in communication on the end face of the flow channel plate, a water-cooled condenser outlet interface is in communication with a temperature and pressure sensor one interface, a large-aperture electronic expansion valve interface, an electromagnetic valve two interface and an outdoor heat exchanger inlet interface, a one-way valve interface is arranged on the end face of the flow channel plate and is in communication with the electromagnetic valve two interface, a rear steam inlet interface, an electronic expansion valve one interface, an electronic expansion valve two interface, a front steam inlet interface and a battery cooler inlet interface, and the electromagnetic valve one interface is in communication with a front and rear steam outlet interface, a temperature and pressure sensor two interface and a battery cooler outlet interface. The application realizes the assembly and installation of various components, reduces the installation space on the whole vehicle, improves the compactness of the components, effectively distinguishes the hot flow channel and the cold flow channel, and avoids heat channeling between the cold and hot flow channels.

Description

Technical Field

[0001] This invention relates to the field of automotive thermal management system technology, and more particularly to an integrated flow channel plate for refrigerant-side thermal management. Background Technology

[0002] The thermal management systems of new energy vehicles differ from those of traditional gasoline vehicles, being far more complex. Most components in a new energy vehicle's thermal management system have their own optimal operating temperature range, within which they perform at their best. These components themselves generate heat during operation, and excess heat in the system needs to be carried away by refrigerant or dissipated into the air directly through a heat exchanger. Conversely, to ensure the battery reaches its ideal operating temperature quickly or to prevent it from overcooling, new energy vehicles require heat to be introduced into the system. Furthermore, the numerous components connected by pipes necessitate a significant space requirement after assembly. Therefore, a dedicated thermal management system and integrated modules are needed to accomplish this function. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned defects and provides an integrated flow channel plate for refrigerant-side thermal management. Various components are integrated on the flow channel plate, which reduces the installation space of the integrated components on the vehicle and improves the compactness of the components.

[0004] In order to overcome the defects in the background technology, the technical solution adopted by the present invention to solve its technical problem is: an integrated flow channel plate for refrigerant side thermal management, including a flow channel plate, wherein the flow channel plate includes a middle module, a left end module located to the left of the middle module and a right end module located to the right of the middle module;

[0005] The gas-liquid separator is fixedly held in place by a fixed gas-distribution bracket on the side of the left module. The end face of the left module is provided with a condenser inlet connection port, a water-cooled condenser inlet interface, a water-cooled condenser outlet interface, a temperature and pressure sensor interface, a large-aperture electronic expansion valve interface, an outdoor heat exchanger inlet interface, and a solenoid valve interface. The condenser inlet connection port is connected to the water-cooled condenser inlet interface through channel eight. The water-cooled condenser outlet interface is connected to the temperature and pressure sensor interface, the large-aperture electronic expansion valve interface, and the solenoid valve interface through channel one. The large-aperture electronic expansion valve interface is connected to the outdoor heat exchanger inlet interface through channel two.

[0006] The intermediate module end face is provided with a rear steam inlet interface, a one-way valve interface, an electronic expansion valve one interface, a front steam inlet interface, an electronic expansion valve two interface, a battery cooler inlet interface, and an outdoor heat exchanger outlet interface. The one-way valve interface is connected to the solenoid valve two interface, the rear steam inlet interface, the electronic expansion valve one interface, and the electronic expansion valve two interface through channel three. The one-way valve interface is connected to the outdoor heat exchanger outlet interface and the solenoid valve one interface through channel four. The electronic expansion valve one interface is connected to the front steam inlet interface through channel seven. The electronic expansion valve two interface is connected to the battery cooler inlet interface through channel six.

[0007] The right end module is provided with a solenoid valve interface, front and rear steam outlet interfaces, a temperature and pressure sensor interface, and a battery cooler outlet interface. The solenoid valve interface is connected to the front and rear steam outlet interfaces, the temperature and pressure sensor interface, and the battery cooler outlet interface through channel five.

[0008] Further improvements include setting irregularly shaped windows one, two, and three on the flow channel plate.

[0009] Further improvements include the window being located between channel eight and channel one.

[0010] Further improvements include the fact that window two is located within the annular structure formed by channel one and channel seven.

[0011] Further improvements include the fact that window three is located within the annular structure formed by channels four, six, and five.

[0012] The beneficial effects of this invention are: the refrigerant-side thermal management integrated module connects the components to be integrated through the channels in the flow channel plate, replacing the original method of connecting the components through pipes, reducing the installation space of the integrated components on the vehicle, and improving the compactness of the components. The refrigerant-side thermal management integrated module can reduce the flow resistance of the original method of connecting the thermal management system through air conditioning pipes. The flow channel design of the flow channel plate assembly of the refrigerant-side integrated module can effectively distinguish between hot and cold flow channels, avoiding heat transfer between hot and cold flow channels. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the flow channel plate of the present invention. Figure 1 ;

[0016] Figure 3 This is a cross-sectional view of the flow channel plate of the present invention. Figure 2 ;

[0017] Figure 4 yes Figure 3 Axonometric view;

[0018] In the diagram: 1-Gas separator support, 2-Gas-liquid separator, 3-Channel 1, 4-Large-aperture electronic expansion valve interface, 5-Outdoor heat exchanger inlet interface, 6-Solenoid valve 2 interface, 7-Rear steam inlet interface, 8-Check valve interface, 9-Outdoor heat exchanger outlet interface, 10-Solenoid valve 1 interface, 11-Rear and front steam outlet interfaces, 12-Temperature and pressure sensor 2 interface, 13-Battery cooler outlet interface, 14-Battery cooler inlet interface, 15-Electronic expansion valve 2 interface, 16-Rear steam inlet interface, 17-Electronic expansion valve 1 interface, 18-Water-cooled condenser outlet interface, 19-Water-cooled condenser inlet interface, 20-Condenser inlet connection port, 21-Channel 2, 22-Channel 3, 23-Channel 4, 24-Channel 5, 25-Channel 6, 26-Channel 7, 27-Channel 8, 28-Flow channel plate, 29-Temperature and pressure sensor 1 interface, 30-Window 1, 31-Window 2, 32-Window 3. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] according to Figure 1 , Figure 2 , Figure 3 Figure 4 As shown, an integrated flow channel plate for refrigerant-side thermal management includes a flow channel plate 28, which includes a middle module, a left end module located to the left of the middle module, and a right end module located to the right of the middle module.

[0021] The gas-liquid separator 2 is fixedly held in place by a fixed gas separator bracket 1 on the side of the left module. The left module end face is provided with a condenser inlet connection 20, a water-cooled condenser inlet interface 19, a water-cooled condenser outlet interface 18, a temperature and pressure sensor interface 29, a large-aperture electronic expansion valve interface 4, an outdoor heat exchanger inlet interface 5, and a solenoid valve interface 6. The condenser inlet connection 20 is connected to the water-cooled condenser inlet interface 19 via channel 8 27. The water-cooled condenser outlet interface 18 is connected to the temperature and pressure sensor interface 29, the large-aperture electronic expansion valve interface 4, and the solenoid valve interface 6 via channel 1 3. The large-aperture… Electronic expansion valve interface 4 is connected to outdoor heat exchanger inlet interface 5 via channel 21. The compressor compresses R134a refrigerant to produce high-temperature and high-pressure gas, which is first introduced from condenser inlet connection 20 and then into water-cooled condenser inlet interface 19. After passing through water-cooled condenser outlet interface 18, it enters channel 3 and is then diverted at temperature and pressure sensor interface 29 into large-aperture electronic expansion valve and solenoid valve 2. At this time, temperature and pressure sensor 1 is installed to detect the pressure of the refrigerant in the pipeline. The gaseous high-temperature and high-pressure refrigerant gas that passes through the large-aperture electronic expansion valve finally enters the outdoor heat exchanger to condense and release heat, becoming a high-temperature and high-pressure saturated liquid.

[0022] The intermediate module end face is provided with a rear steam inlet port 7, a one-way valve port 8, an electronic expansion valve port 17, a front steam inlet port 16, an electronic expansion valve port 2 15, a battery cooler inlet port 14, and an outdoor heat exchanger outlet port 9. The one-way valve port 8 is connected to the solenoid valve port 2 6, the rear steam inlet port 7, the electronic expansion valve port 17, and the electronic expansion valve port 2 15 via channel 3 22. The one-way valve port 8 is connected to the outdoor heat exchanger outlet port 9 and the solenoid valve port 10 via channel 4 23. The electronic expansion valve port 17 is connected to the front steam inlet port 16 via channel 7 26. The electronic expansion valve 2 interface 15 is connected to the battery cooler inlet interface 14 through channel 6 25. When cooling, solenoid valve 2 and solenoid valve 1 are in the closed state, and solenoid valve 2 interface 6 and solenoid valve 1 interface 10 are in the non-conductive state. At this time, the high temperature and high pressure saturated liquid from the outdoor heat exchanger is diverted through the check valve into electronic expansion valve 1, electronic expansion valve 2, and the evaporator for post-cooling. The liquid passing through electronic expansion valve 1 enters the evaporator for pre-cooling, and the liquid passing through electronic expansion valve 2 finally enters the battery cooler for further cooling. The low temperature and low pressure refrigerant gas flows out from the battery cooler and the evaporator for cooling. In cooling / dehumidification mode, solenoid valves one and two are open. The large-diameter electronic expansion valve before the outdoor heat exchanger is open, allowing the outdoor heat exchanger to absorb heat from the outside environment as an evaporator. The evaporator for subsequent cooling and electronic expansion valve one are both open. The high-temperature, high-pressure liquid is diverted to solenoid valve two, entering both the front and rear evaporators. The refrigerant, after being depressurized by the large-diameter electronic expansion valve, enters the outdoor heat exchanger and then passes through solenoid valve one into the gas-liquid separator 2, finally entering the compressor. In heating mode, solenoid valve one is closed, and the water-cooled condenser is in operation, transferring heat to the coolant side for heating the cockpit. The large-diameter electronic expansion valve before the outdoor heat exchanger is open, allowing the outdoor heat exchanger to absorb heat from the outside environment as an evaporator. The heat then returns to the gas-liquid separator 2 via solenoid valve one, finally entering the compressor for the next heating cycle.

[0023] The right end module is provided with a solenoid valve interface 10, a front and rear evaporator outlet interface 11, a temperature and pressure sensor interface 12, and a battery cooler outlet interface 13. The solenoid valve interface 10 is connected to the front and rear evaporator outlet interface 11, the temperature and pressure sensor interface 12, and the battery cooler outlet interface 13 through channel 5 24. During refrigeration, the low-temperature and low-pressure refrigerant gas flowing out of the rear refrigeration evaporator, the front refrigeration evaporator, and the battery cooler converges into the front and rear evaporator outlet interface 11 and then enters the gas-liquid separator 2. The gas-liquid separator 2 absorbs the moisture in the refrigerant and filters out the impurities, and finally flows into the compressor COMP.

[0024] By adopting the above implementation method, the various components that need to be integrated can be connected through the channels in the flow channel plate 28, which reduces the installation space of the integrated components on the whole vehicle, improves the compactness of the components, and can reduce the flow resistance of the original air conditioning pipe connection to the thermal management system. Among them, channels 8 27, 21, 1 3, 3 22 and 4 23 are hot channels, and channels 7 26, 6 25 and 5 24 are cold channels. This design can effectively distinguish between hot and cold channels and avoid heat transfer between hot and cold channels.

[0025] The flow channel plate 28 is provided with irregularly shaped windows 30, 31, and 32. Window 30 is located between channel 37 and channel 3. Window 31 is located within the annular structure formed by channel 3 and channel 26. Window 32 is located within the annular structure formed by channel 23, channel 25, and channel 24. By adopting the above implementation method, the flow channel plate 28 structure is more compact, the weight of the flow channel plate 28 is reduced, and the manufacturing cost is saved.

[0026] Working principle: The compressor compresses R134a refrigerant to produce high-temperature and high-pressure gas. The gas enters the water-cooled condenser through the condenser inlet connection 20 and channel 8 27. At this time, the water-cooled condenser is just a channel with very little heat exchange with the water side. The high-temperature and high-pressure refrigerant gas enters channel 1 3 from the water-cooled condenser outlet interface 18. When it passes through the temperature and pressure sensor interface 29, it is split into solenoid valve 2 and large-diameter electronic expansion valve. The high-temperature and high-pressure refrigerant gas after passing through the large-diameter electronic expansion valve finally flows into the outdoor heat exchanger through channel 2 21.

[0027] Refrigeration process: At this time, solenoid valves 2 and 1 are closed. The high-temperature and high-pressure refrigerant gas enters the outdoor heat exchanger and condenses to release heat, becoming a high-temperature and high-pressure saturated liquid. The liquid flows from the outdoor heat exchanger outlet port 9 into channel 4 23, and after passing through the check valve, it enters channel 3 22 and is finally split into the rear refrigeration evaporator, the front refrigeration evaporator, and the battery cooler. The low-temperature and low-pressure refrigerant gas flowing out from the battery cooler and the front and rear refrigeration evaporators, and the gas generated by the battery cooler, enter the front and rear evaporator outlet ports 11 from channel 5 24. The outlets of the front and rear refrigeration evaporators are connected to the front and rear evaporator outlet ports 11. Finally, the low-temperature and low-pressure refrigerant gas is drawn into the gas-liquid separator 2. The gas-liquid separator 2 absorbs the moisture in the refrigerant and filters out the impurities. Finally, it flows into the compressor. The above steps are repeated to achieve continuous cooling.

[0028] In the refrigeration and dehumidification process: Solenoid valves 2 and 1 are open, the water-cooled condenser is in working mode, the large-diameter electronic expansion valve before the outdoor heat exchanger is open, the high-temperature and high-pressure refrigerant liquid is throttled and depressurized after passing through the electronic expansion valve, and the high-temperature and high-pressure gas enters the outdoor heat exchanger through channel 1 (3) and channel 2 (21). The outdoor heat exchanger acts as an evaporator to absorb heat from the outside. The evaporator for subsequent refrigeration and electronic expansion valve 1 are both open. The high-temperature and high-pressure refrigerant liquid is diverted through channel 3 (22) and channel 4 (23) into the front evaporator and the rear evaporator, and enters the gas-liquid separator 2 through interface 10 of solenoid valve 1. At the same time, the low-temperature and low-pressure refrigerant liquid that is diverted into channel 1 (3) and then enters the outdoor heat exchanger vaporizes and absorbs heat to become low-temperature and low-pressure refrigerant gas, which returns to channel 4 (23) and then enters the gas-liquid separator 2, and finally enters the compressor.

[0029] Heating cycle: Solenoid valve 2 is closed and solenoid valve 1 is open. The water-cooled condenser is in working mode, transferring the heat from the high-temperature, high-pressure gas generated by the compressor to the coolant side for heating the cockpit. The large-diameter electronic expansion valve is open, and the high-temperature, high-pressure gas enters the outdoor heat exchanger through channel 1 (3) and channel 2 (21). The outdoor heat exchanger acts as an evaporator to absorb heat from the outside. After the outdoor heat exchanger discharges low-temperature, low-pressure gas, it returns to the gas-liquid separator 2 through channel 4 (23) and channel 5 (24), and finally enters the compressor to enter the next heating cycle.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated flow channel plate for refrigerant side thermal management, characterized by, It comprises a flow channel plate (28), which comprises a middle module, a left end module located at the left side of the middle module and a right end module located at the right side of the middle module; The left end module side clamps and fixes the gas-liquid separator (2) through the fixed gas branch support (1), and the left end module end face is provided with a condenser inlet connecting port (20), a water-cooled condenser inlet interface (19), a water-cooled condenser outlet interface (18), a temperature and pressure sensor one interface (29), a large-aperture electronic expansion valve interface (4), an outdoor heat exchanger inlet interface (5) and an electromagnetic valve two interface (6), the condenser inlet connecting port (20) is communicated with the water-cooled condenser inlet interface (19) through channel eight (27), the water-cooled condenser outlet interface (18) is respectively communicated with the temperature and pressure sensor one interface (29), the large-aperture electronic expansion valve interface (4) and the electromagnetic valve two interface (6) through channel one (3), and the large-aperture electronic expansion valve interface (4) is communicated with the outdoor heat exchanger inlet interface (5) through channel two (21); The middle module end face is provided with a rear steam inlet interface (7), a one-way valve interface (8), an electronic expansion valve one interface (17), a front steam inlet interface (16), an electronic expansion valve two interface (15), a battery cooler inlet interface (14) and an outdoor heat exchanger outlet interface (9), the one-way valve interface (8) is communicated with the electromagnetic valve two interface (6), the rear steam inlet interface (7), the electronic expansion valve one interface (17) and the electronic expansion valve two interface (15) through channel three (22), the one-way valve interface (8) is communicated with the outdoor heat exchanger outlet interface (9) and the electromagnetic valve one interface (10) through channel four (23), the electronic expansion valve one interface (17) is communicated with the front steam inlet interface (16) through channel seven (26), and the electronic expansion valve two interface (15) is communicated with the battery cooler inlet interface (14) through channel six (25); The right end module end face is provided with an electromagnetic valve one interface (10), a front and rear steam outlet interface (11), a temperature and pressure sensor two interface (12) and a battery cooler outlet interface (13), and the electromagnetic valve one interface (10) is communicated with the front and rear steam outlet interface (11), the temperature and pressure sensor two interface (12) and the battery cooler outlet interface (13) through channel five (24).

2. An integrated flow channel plate for refrigerant side thermal management as defined in claim 1, wherein: Irregularly-shaped window one (30), window two (31) and window three (32) are arranged on the flow channel plate (28).

3. An integrated flow channel plate for refrigerant side thermal management as defined in claim 2, wherein: The window one (30) is located between the channel eight (27) and the channel one (3).

4. An integrated runner plate for refrigerant side thermal management as claimed in claim 2, wherein: The window two (31) is located in the annular structure surrounded by the channel one (3), the channel seven (26).

5. An integrated flow channel plate for refrigerant side thermal management as defined in claim 2, wherein: The window three (32) is located in the annular structure surrounded by the channel four (23), the channel six (25) and the channel five (24).

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