Compressor, integrated thermal management system and vehicle
By adding a cooling channel and an integrated thermal management system to the exhaust side of the vertical high back pressure compressor casing, the problem of high temperature in the motor and pump body is solved, achieving effective cooling and efficiency improvement, making it suitable for vehicle applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2026-02-25
- Publication Date
- 2026-05-01
AI Technical Summary
The motor and pump body of the vertical high back pressure compressor are in a high-temperature environment, which leads to a decrease in efficiency and lacks effective cooling measures, limiting its application in vehicles.
A cooling channel is added to the exhaust side of the compressor casing, and cooler cooling water is introduced through the cooling channel. The flow rate of the cooling water is controlled by temperature sensing elements and regulating valves to absorb heat from the casing, cool the motor and pump body, and dissipate heat from the controller through an integrated thermal management system.
It effectively reduces the temperature of the motor and pump body, improves efficiency, achieves near-isothermal compression, ensures the working efficiency of the compressor, and achieves heat dissipation of the controller through an integrated thermal management system, making it suitable for vehicle applications.
Smart Images

Figure CN121952831A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of compressor technology, and more particularly to a compressor, an integrated thermal management system including the compressor, and a vehicle including the integrated thermal management system. Background Technology
[0002] Traditional automotive horizontal high / low back pressure compressors have their motors located on the low-pressure side, cooled by the low-temperature refrigerant entering the compressor from the low-pressure side. Unlike traditional horizontal high / low back pressure compressors, vertical high back pressure compressors have a top-discharge design, with the motor on the discharge side. The high-temperature, high-pressure refrigerant, compressed by the pump, exits the compressor from the discharge side, resulting in both the motor and pump operating in high-temperature environments. This excessively high discharge temperature negatively impacts compressor efficiency; under extreme conditions, the discharge side temperature can reach 140°C, and motor temperatures exceeding 130°C can lead to demagnetization, further reducing efficiency. Since automotive compressors are typically located in the front compartment, where ambient temperatures can reach 100°C in extreme summer conditions, and there is often no effective ventilation, the vertical high back pressure compressor itself cannot cool its motor and pump, thus limiting its application in vehicles.
[0003] In addition, the controller of a traditional automotive horizontal high and low back pressure compressor is cooled by the low-temperature, low-pressure refrigerant on the suction side, while a vertical high back pressure compressor does not have the same cooling conditions for the controller. Summary of the Invention
[0004] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a compressor that can achieve cooling of the exhaust-side motor and pump body.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] The present invention provides a compressor, including a hollow housing, the housing including an upper housing part for accommodating a motor and a lower housing part for accommodating a pump body, the refrigerant compressed by the pump body is discharged from the upper housing part, the upper housing part is provided with a cooling channel independent of the internal space of the housing, the cooling channel has a channel inlet for cooling water to flow in and a channel outlet for cooling water to flow out, the cooling water flows through the cooling channel and absorbs heat from inside the housing.
[0007] Preferably, a regulating valve and a temperature sensing element are provided at the inlet of the flow channel. The temperature sensing element is used to sense the temperature change of the shell, and the regulating valve adjusts the flow rate of cooling water flowing into the inlet of the flow channel in response to the temperature sensing element's sensing of the temperature change of the shell.
[0008] Preferably, the temperature sensing element includes a hollow temperature sensing bulb and paraffin wax encapsulated in the internal space of the temperature sensing bulb. One end of the temperature sensing bulb is connected to the regulating valve, and the other end is in contact with the housing. The paraffin wax undergoes a phase change in response to the temperature change of the housing, resulting in volume expansion or contraction, which drives the regulating valve to adjust the flow rate of cooling water flowing into the inlet of the flow channel.
[0009] Preferably, the regulating valve includes a valve body with a hollow interior forming a valve cavity, and a valve stem and a spring disposed within the valve cavity. The valve cavity is provided with an inlet for cooling water to enter, and a first outlet and a second outlet located on both sides of the inlet and connected to a bypass and a flow channel inlet, respectively. A temperature sensing bulb is disposed within the second outlet. One end of the valve stem is provided with a valve disc, which is movably disposed between the first outlet and the second outlet and can close either the first outlet or the second outlet. The spring elastically abuts against the valve disc and closes the second outlet. The other end of the valve stem is provided with a connecting plate, which is movably connected to the internal space of the temperature sensing bulb and forms a closed receiving cavity with the temperature sensing bulb. Paraffin wax is disposed within the receiving cavity.
[0010] Preferably, a channel is provided on the outer side wall of the upper part of the shell and a sealing plate is connected to the channel, the sealing plate and the channel together form a cooling flow channel.
[0011] Preferably, the cooling channels extend in a serpentine, meandering pattern.
[0012] Preferably, a water-cooled plate is provided on the outer wall of the housing at the location where the compressor controller is installed. The water-cooled plate has an inlet for cooling water to flow in and an outlet for cooling water to flow out. The outlet is connected to the inlet of the flow channel. The cooling water flows through the water-cooled plate and absorbs the heat of the controller.
[0013] The present invention also provides an integrated thermal management system, including a refrigerant circulation loop, an environmental water circulation loop, and an application water circulation loop. The refrigerant circulation loop is equipped with a compressor, a four-way valve, an outdoor heat exchanger, an expansion valve, an indoor heat exchanger, and a gas-liquid separator. After heat exchange with the outdoor heat exchanger, the environmental water circulation loop releases or absorbs heat to the external environment. After heat exchange with the indoor heat exchanger, the application water circulation loop absorbs or releases heat to the application site. The compressor is the compressor described above. The cooling channel is connected to the environmental water circulation loop and is located upstream of the outdoor heat exchanger.
[0014] Preferably, the four-way valve, outdoor heat exchanger, expansion valve, indoor heat exchanger, and gas-liquid separator are integrated on the housing.
[0015] The present invention also provides a vehicle including the integrated thermal management system described above.
[0016] Compared with the prior art, the present invention has significant progress:
[0017] The compressor of the present invention, by adding a cooling channel on the upper part of the casing on the exhaust side of the casing, introduces cooling water with a temperature lower than the exhaust temperature of the compressor through the cooling channel, which can absorb and remove heat from the casing, thereby cooling the motor on the exhaust side and subsequently cooling the pump body. This can reduce the temperature of the motor and the pump body, improve motor efficiency, achieve near isothermal compression of the refrigerant by the pump body, and ensure the working efficiency of the compressor. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the compressor according to an embodiment of the present invention.
[0019] Figure 2 yes Figure 1 An explosion diagram.
[0020] Figure 3 This is a schematic diagram of the casing structure in the compressor of this embodiment of the invention.
[0021] Figure 4 This is a schematic diagram of the compressor housing connected to a sealing plate in an embodiment of the present invention.
[0022] Figure 5 This is a cross-sectional schematic diagram of the regulating valve, temperature sensing element and flow channel inlet in the compressor of this embodiment of the invention. The diagram shows the state in which the valve disc closes the second water outlet.
[0023] Figure 6 This is a cross-sectional schematic diagram of the regulating valve, temperature sensing element and flow channel inlet in the compressor of this embodiment of the invention. The diagram shows the state in which the valve disc closes the first water outlet.
[0024] Figure 7 This is a schematic diagram of the structure of the integrated thermal management system according to an embodiment of the present invention.
[0025] Figure 8 This is a schematic diagram illustrating the working principle of the integrated thermal management system under refrigeration conditions according to an embodiment of the present invention.
[0026] Figure 9 This is a schematic diagram illustrating the working principle of the integrated thermal management system under heating conditions according to an embodiment of the present invention.
[0027] The reference numerals in the attached figures are explained as follows:
[0028] 100. Compressor; 1. Housing; 1a. Upper part of housing; 1b. Lower part of housing; 2. Cooling channel; 2a. Channel inlet; 2b. Channel outlet; 21. Channel; 22. Sealing plate; 3. Regulating valve; 30. Valve chamber; 30a. Water inlet; 30b. First water outlet; 30c. Second water outlet; 31. Valve body; 32. Valve stem; 33. Spring; 34. Valve disc; 34a. First valve disc; 34b. Second valve disc; 35. Connecting plate; 4. Temperature sensing element; 41. Temperature sensing bulb; 411. Main body 412. Abutment part; 42. Paraffin wax; 5. Water-cooled plate; 5a. Water inlet; 5b. Water outlet; 6. Connecting pipe; 200. Refrigerant circulation loop; 201. Four-way valve; 202. Outdoor heat exchanger; 203. Expansion valve; 204. Indoor heat exchanger; 205. Gas-liquid separator; 300. Environmental end water circulation loop; 301. First heat exchange module; 302. First water pump; 400. Application end water circulation loop; 401. Second heat exchange module; 402. Second water pump; 500. Bypass pipe. Detailed Implementation
[0029] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.
[0030] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0032] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.
[0033] like Figures 1 to 6The image shows an embodiment of the compressor provided by the present invention.
[0034] like Figure 1 and Figure 2 As shown, the compressor 100 in this embodiment is a vertical high back pressure compressor with an upward exhaust design. It includes a hollow housing 1. The housing 1 includes an upper housing part 1a for accommodating the motor and a lower housing part 1b for accommodating the pump body. The upper housing part 1a is located above the lower housing part 1b, and the motor is located above the pump body. The motor is connected to the pump body through a crankshaft and drives the pump body to operate, so as to compress the refrigerant introduced into the pump body. The refrigerant compressed by the pump body is discharged from the upper housing part 1a. That is, the exhaust port of the compressor 100 is located in the upper housing part 1a, and the motor is located on the exhaust side.
[0035] To achieve cooling of the exhaust-side motor and pump body, such as Figure 2 , Figure 3 and Figure 4 As shown, the compressor 100 of this embodiment has a cooling channel 2 on the upper part 1a of the housing, which is independent of the internal space of the housing 1. The cooling channel 2 has a channel inlet 2a for cooling water to flow in and a channel outlet 2b for cooling water to flow out. The cooling water flows through the cooling channel 2 and absorbs the heat inside the housing 1.
[0036] In this embodiment, the compressor 100 has a cooling channel 2 added to the upper part 1a of the housing 1 on the exhaust side. Cooling water with a temperature lower than the exhaust temperature of the compressor 100 is introduced and flows through the cooling channel 2. This can absorb and remove heat from the housing 1, thereby cooling the motor on the exhaust side and subsequently cooling the pump body. This reduces the temperature of the motor and the pump body, improves the motor efficiency, and enables the pump body to perform near-isothermal compression of the refrigerant, ensuring the working efficiency of the compressor 100.
[0037] like Figure 3 and Figure 4 As shown, in this embodiment, preferably, a channel 21 is formed on the outer side wall of the upper part 1a of the housing, and a sealing plate 22 is connected to the channel 21. The sealing plate 22 is attached to the outer side wall of the upper part 1a of the housing and fixedly connected to the upper part 1a of the housing to seal the channel 21. The sealing plate 22 and the channel 21 together form a cooling channel 2. To ensure the sealing of the cooling channel 2, preferably, a sealing element is provided between the periphery of the channel 21 and the sealing plate 22. The inlet 2a of the cooling channel 2 can be exposed outside the sealing plate 22, that is, one end of the channel 21 is not covered by the sealing plate 22 and serves as the inlet 2a. The other end of the channel 21 can be covered by the sealing plate 22, and a through hole is formed on the sealing plate 22 at a position corresponding to the other end of the channel 21 as the outlet 2b of the cooling channel 2.
[0038] To increase the cooling path length and enhance the cooling effect, the cooling channel 2 preferably extends in a serpentine bend. In this embodiment, the channel 21 extends in a serpentine bend.
[0039] like Figure 1 and Figure 2 As shown, in this embodiment, preferably, a regulating valve 3 and a temperature sensing element 4 are provided at the inlet 2a of the cooling channel 2. The temperature sensing element 4 is used to sense the temperature change of the housing 1. The regulating valve 3 adjusts the flow rate of cooling water flowing into the inlet 2a of the cooling channel in response to the temperature change of the housing 1 sensed by the temperature sensing element 4. When the temperature of the housing 1 is lower than the threshold of the temperature sensing element 4, the temperature sensing element 4 does not act, and the regulating valve 3 remains closed at the inlet 2a of the cooling channel to prevent cooling water from entering the cooling channel 2, thereby avoiding overcooling of the housing 1. When the temperature of the housing 1 exceeds the threshold of the temperature sensing element 4, the temperature sensing element 4 acts, and the regulating valve 3 opens the inlet 2a of the cooling channel in response to the action of the temperature sensing element 4, allowing cooling water to enter the cooling channel 2 to cool the housing 1. Furthermore, the magnitude of the action of the temperature sensing element 4 varies with the temperature value of the housing 1, and the opening degree of the regulating valve 3 at the inlet 2a of the cooling channel varies with the magnitude of the action of the temperature sensing element 4, thereby realizing the control of the flow rate of cooling water flowing into the inlet 2a of the cooling channel according to the temperature of the housing 1. Therefore, this embodiment can adaptively cool according to the temperature change of the housing 1, accurately control the cooling water flow and the cooling temperature of the housing 1, and prevent excessive cooling from causing premature condensation of the exhaust refrigerant in the compressor.
[0040] like Figure 2 , Figure 5 and Figure 6As shown, in this embodiment, preferably, the temperature sensing element 4 includes a hollow temperature sensing bulb 41 and paraffin wax 42 encapsulated within the internal space of the temperature sensing bulb 41. One end of the temperature sensing bulb 41 is connected to the regulating valve 3, and the other end of the temperature sensing bulb 41 is in contact with the housing 1 to obtain the temperature of the housing 1. The paraffin wax 42 inside the temperature sensing bulb 41 has thermal expansion characteristics. The paraffin wax 42 undergoes a phase change in response to the temperature change of the housing 1, resulting in volume expansion or contraction, which drives the regulating valve 3 to regulate the flow rate of cooling water flowing into the inlet 2a of the flow channel. The threshold of the temperature sensing element 4 is the melting point of the paraffin wax 42. When the temperature of the housing 1 is lower than the melting point of the paraffin wax 42, the paraffin wax 42 is solid and maintains a fixed volume, and the regulating valve 3 remains closed at the inlet 2a of the flow channel. When the temperature of the housing 1 exceeds the melting point of the paraffin wax 42, the paraffin wax 42 melts into a liquid state, expands in volume, and the regulating valve 3 opens the inlet 2a of the flow channel in response to the volume expansion of the paraffin wax 42, with the opening degree varying according to the degree of volume expansion of the paraffin wax 42. As the temperature of the shell 1 gradually cools down to below the melting point of paraffin 42, the paraffin 42 gradually solidifies and its volume gradually shrinks. In response to the volume shrinkage of the paraffin 42, the regulating valve 3 reduces the opening of the flow channel inlet 2a until it closes. This achieves the regulation of the cooling water flow rate into the flow channel inlet 2a in response to the temperature change of the shell 1 sensed by the temperature sensing element 4.
[0041] Preferably, the regulating valve 3 includes a valve body 31 with an internally hollow valve cavity 30, and a valve stem 32 and a spring 33 disposed within the valve cavity 30.
[0042] The valve chamber 30 is provided with a water inlet 30a and a first water outlet 30b and a second water outlet 30c located on both sides of the water inlet 30a. The water inlet 30a allows cooling water to enter the valve chamber 30. The first water outlet 30b is connected to a bypass and is used to guide the cooling water entering the valve chamber 30 into the bypass. The second water outlet 30c is connected to a flow channel inlet 2a and is used to guide the cooling water entering the valve chamber 30 into the flow channel inlet 2a.
[0043] A valve disc 34 is provided at one end of the valve stem 32. The valve disc 34 is movably disposed between the first water outlet 30b and the second water outlet 30c and can close either the first water outlet 30b or the second water outlet 30c. A spring 33 elastically abuts against the valve disc 34 and closes the second water outlet 30c. Preferably, two valve discs 34 are provided at a distance from one end of the valve stem 32, namely a first valve disc 34a and a second valve disc 34b. The first valve disc 34a is close to the first water outlet 30b and can close the first water outlet 30b, and the second valve disc 34b is close to the second water outlet 30c and can close the second water outlet 30c. The two valve discs 34 move synchronously between the first water outlet 30b and the second water outlet 30c under the action of the valve stem 32. The distance between the two valve discs 34 is such that when one valve disc 34 closes the corresponding water outlet, the other valve disc 34 is spaced apart from the corresponding water outlet, thus opening the water outlet. Spring 33 is sleeved on the first valve disc 34a. One end of spring 33 abuts against the valve body 31 at the first water outlet 30b, and the other end of spring 33 abuts against the second valve disc 34b, thereby elastically pressing the second valve disc 34b against the position of closing the second water outlet 30c. This is the initial state of regulating valve 3.
[0044] A temperature sensing element 41 is disposed within the second water outlet 30c. A connecting plate 35 is provided at the other end of the valve stem 32. The connecting plate 35 is movably connected to the internal space of the temperature sensing element 41 and forms a closed receiving cavity with the temperature sensing element 41. Paraffin wax 42 is disposed within this receiving cavity. The temperature sensing element 41 is connected and fixed to the valve body 31 within the second water outlet 30c, and the end of the temperature sensing element 41 away from the valve stem 32 abuts against the housing 1. Preferably, the temperature sensing bulb 41 includes a hollow main body 411, which is used to connect to the connecting plate 35 and accommodate the paraffin wax 42. The main body 411 is a column, and its diameter is smaller than the diameter of the second water outlet 30c and the flow channel inlet 2a. Multiple abutment portions 412 are arranged circumferentially on the outer peripheral side of the end of the main body 411 away from the valve stem 32. The abutment portions 412 abut against the housing 1 located on the outer peripheral side edge of the flow channel inlet 2a, thereby achieving contact between the temperature sensing bulb 41 and the housing 1 without blocking the passage between the second water outlet 30c and the flow channel inlet 2a.
[0045] In this embodiment, the regulating valve 3 responds to the temperature change of the housing 1 sensed by the temperature sensing element 4 and distributes the flow of cooling water entering the valve chamber 30 from the water inlet 30a. Its working principle is as follows: In the initial state, the temperature of the housing 1 is lower than the melting point of the paraffin wax 42, so the paraffin wax 42 remains solid. Under the elastic force of the spring 33, the valve disc 34 of the regulating valve 3 maintains the initial state where the second valve disc 34b closes the second water outlet 30c and the first valve disc 34a opens the first water outlet 30b. Figure 5As shown, all cooling water entering the valve chamber 30 through the inlet 30a is diverted to the bypass via the first outlet 30b, without cooling the housing 1. When the temperature of the housing 1 exceeds the melting point of the paraffin wax 42, the paraffin wax 42 melts into a liquid state, expands in volume, and pushes the connecting plate 35 to move within the temperature sensing bulb 41. The connecting plate 35 drives the valve stem 32 to move, and the valve stem 32 drives the two valve discs 34 to move, causing the second valve disc 34b to overcome the elastic force of the spring 33 and open the second outlet 30c. The regulating valve 3 is in a state where the second valve disc 34b opens the second outlet 30c and the first valve disc 34a opens the first outlet 30b. Water enters from the inlet 30a... Part of the cooling water in the valve chamber 30 is introduced into the flow channel inlet 2a through the second outlet port 30c to cool the housing 1, and the other part is introduced into the bypass through the first outlet port 30b. If the temperature of the housing 1 continues to rise, the paraffin wax 42 continues to melt, the valve stem 32 displacement increases, the second valve disc 34b gradually moves away from the second outlet port 30c, increasing the opening of the second outlet port 30c, and the first valve disc 34a gradually moves closer to the first outlet port 30b, decreasing the opening of the first outlet port 30b, thus achieving cooling water flow regulation and distribution, until the first valve disc 34a closes the first outlet port 30b and the opening of the second outlet port 30c increases to fully open. Figure 6 As shown, all the cooling water entering the valve cavity 30 through the water inlet 30a is introduced into the flow channel inlet 2a through the second water outlet 30c, and the cooling water flow rate for cooling and heat dissipation of the shell 1 reaches the maximum. When the temperature of the shell 1 gradually cools down to below the melting point of the paraffin wax 42, the paraffin wax 42 gradually solidifies into a solid and its volume gradually shrinks. Under the elastic force of the spring 33, the valve disc 34 gradually moves in the opposite direction to return to the initial state.
[0046] like Figure 1 and Figure 2 As shown, in this embodiment, preferably, a water-cooled plate 5 is provided on the outer wall of the housing 1 at the location where the controller of the compressor 100 is installed. The water-cooled plate 5 has an inlet 5a for cooling water to flow in and an outlet 5b for cooling water to flow out. The outlet 5b is connected to the inlet 2a of the cooling channel 2. The cooling water flows through the water-cooled plate 5 and absorbs the heat of the controller, cooling the controller, and then enters the cooling channel 2 to cool the housing 1. Thus, while using cooling water to cool the motor and pump body inside the housing 1, it can also cool the controller of the compressor 100, preventing the controller of the compressor 100 from overheating and affecting the normal operation of electronic components.
[0047] In this embodiment, the outlet 5b of the water-cooled plate 5 is connected to the inlet 30a of the regulating valve 3 via the connecting pipe 6.
[0048] like Figures 7 to 9As shown, based on the compressor of the present invention, this embodiment also provides an integrated thermal management system. The integrated thermal management system of this embodiment includes a refrigerant circulation loop 200, an environmental water circulation loop 300, and an application-side water circulation loop 400. The refrigerant circulation loop 200 is equipped with the compressor 100 described above, and also includes a four-way valve 201, an outdoor heat exchanger 202, an expansion valve 203, an indoor heat exchanger 204, and a gas-liquid separator 205. The environmental water circulation loop 300 releases or absorbs heat to the external environment after heat exchange with the outdoor heat exchanger 202. The environmental water circulation loop 300 is equipped with a first heat exchange module 301 and a first water pump 302. The first heat exchange module 301 includes a first radiator and a first fan. The cooling channel 2 on the compressor housing 100 is connected to the environmental water circulation loop 300. The cooling channel 2 is located upstream of the outdoor heat exchanger 202 in the environmental water circulation loop 300, allowing the cooling water in the environmental water circulation loop 300 to flow through the cooling channel 2 before entering the outdoor heat exchanger 202 when the compressor housing 100 is at a high temperature and requires cooling. After heat exchange with the indoor heat exchanger 204, the application-side water circulation loop 400 absorbs or releases heat to the application area. The application-side water circulation loop 400 is equipped with a second heat exchange module 401 and a second water pump 402. The second heat exchange module 401 includes a second radiator and a second fan.
[0049] Therefore, the integrated thermal management system of this embodiment can use cooling water from the ambient water circulation loop 300 to cool and dissipate heat from the motor and pump body inside the compressor 100 housing 1. The cooling water in the ambient water circulation loop 300 first flows through the cooling channel 2 on the housing 1 and then enters the outdoor heat exchanger 202, forming a heat exchange cycle, which has the advantage of high integration.
[0050] like Figure 7 As shown, preferably, in the integrated thermal management system of this embodiment, the four-way valve 201, outdoor heat exchanger 202, expansion valve 203, indoor heat exchanger 204, and gas-liquid separator 205 on the refrigerant circulation loop 200 are integrated on the housing 1, forming a highly integrated heat exchanger, which has the advantages of simple and compact structure. The sealing plate 22 on the housing 1 can serve as a mounting plate for the outdoor heat exchanger 202.
[0051] In the integrated thermal management system of this embodiment, preferably, the inlet 5a of the water-cooled plate 5 on the compressor 100 housing 1 is connected to the outlet of the first water pump 302 on the environmental end water circulation loop 300, the outlet 5b of the water-cooled plate 5 is connected to the inlet 30a of the regulating valve 3 through the connecting pipe 6, the first outlet 30b of the regulating valve 3 is connected to the water channel inlet of the outdoor heat exchanger 202 through the bypass pipe 500, the second outlet 30c of the regulating valve 3 is connected to the channel inlet 2a of the cooling channel 2, and the channel outlet 2b of the cooling channel 2 is connected to the water channel inlet of the outdoor heat exchanger 202. The cooling water in the environmental end water circulation loop 300 is pumped by the first water pump 302, first flows through the water-cooled plate 5 to cool and dissipate heat from the compressor 100 controller, and then enters the regulating valve 3. The regulating valve 3 distributes the flow according to the temperature of the housing 1, and when needed, flows through the cooling channel 2 to cool and dissipate heat from the housing 1, and then enters the outdoor heat exchanger 202.
[0052] like Figure 8The diagram shown illustrates the cooling operation principle of the integrated thermal management system in this embodiment. The cooling operation principle is as follows: The refrigerant flows in the refrigerant circulation loop 200. The high-temperature, high-pressure gaseous refrigerant, compressed by the pump body of the compressor 100, is discharged from the upper part 1a of the casing. It is then sent through the four-way valve 201 to the outdoor heat exchanger 202 for heat dissipation and condensation into liquid refrigerant. Next, it passes through the expansion valve 203 to the indoor heat exchanger 204 for heat absorption and evaporation into low-temperature gaseous refrigerant. Finally, it passes through the four-way valve 201 to the gas-liquid separator 205 for gas-liquid separation. The gaseous refrigerant, after separation, enters the pump body of compressor 100 for compression, forming a cycle. Cooling water in the ambient water circulation loop 300 is pumped by the first water pump 302 to the water-cooled plate 5 of compressor 100, cooling the controller of compressor 100 before being sent to the inlet 30a of regulating valve 3 at the inlet 2a of cooling channel 2. Regulating valve 3, responding to the temperature change of housing 1 sensed by temperature sensor 4, distributes the flow of cooling water entering valve chamber 30 from inlet 30a. The second water outlet 30c allows cooling water to be introduced into the cooling channel 2 to cool the casing 1, and then enters the outdoor heat exchanger 202 from the channel outlet 2b. The open first water outlet 30b allows cooling water to be introduced into the bypass pipe 500 and delivered to the outdoor heat exchanger 202. Therefore, the cooling water delivered to the compressor 100 ultimately enters the outdoor heat exchanger 202. The cooling water entering the outdoor heat exchanger 202 exchanges heat with the refrigerant in the outdoor heat exchanger 202, and the heat is transferred through the first heat exchange module 301. The external environment releases heat, which then returns to the first water pump 302, forming a cycle. The cooling water temperature after releasing heat from the external environment is relatively low, which can be used to cool the controller of the compressor 100 and the exhaust side of the casing 1. The cooling water in the application end water circulation loop 400 enters the indoor heat exchanger 204 under the pumping of the second water pump 402. The cooling water entering the indoor heat exchanger 204 exchanges heat with the refrigerant in the indoor heat exchanger 204, and absorbs heat from the application site through the second heat exchange module 401, forming a cooling effect in the application site.
[0053] like Figure 9The diagram shown illustrates the heating operation principle of the integrated thermal management system in this embodiment. The heating operation principle is as follows: Refrigerant flows in the refrigerant circulation loop 200. The four-way valve 201 reverses the flow. The high-temperature, high-pressure gaseous refrigerant, compressed by the pump body of the compressor 100, is discharged from the upper part 1a of the casing. It is then sent through the four-way valve 201 to the indoor heat exchanger 204 for heat dissipation and condensation into liquid refrigerant. After passing through the expansion valve 203, it is sent to the outdoor heat exchanger 202 for heat absorption and evaporation into low-temperature gaseous refrigerant. Finally, it is sent through the four-way valve 201 to the gas-liquid separator 205 for further processing. Gas-liquid separation occurs, and the separated gaseous refrigerant enters the pump body of compressor 100 for compression, forming a cycle. Cooling water in the ambient water circulation loop 300 is pumped by the first water pump 302 to the water-cooled plate 5 of compressor 100, cooling the controller of compressor 100 before being sent to the inlet 30a of regulating valve 3 at the inlet 2a of cooling channel 2. Regulating valve 3 responds to the temperature change of housing 1 by the temperature sensing element 4 and distributes the flow of cooling water entering valve chamber 30 from inlet 30a, opening the second outlet 30a. 30c can guide cooling water into cooling channel 2 to cool and dissipate heat from the casing 1, and then enter the outdoor heat exchanger 202 from the channel outlet 2b of cooling channel 2. The opened first water outlet 30b can guide cooling water into the bypass pipe 500 and send it to the outdoor heat exchanger 202. Therefore, the cooling water sent to the compressor 100 will eventually enter the outdoor heat exchanger 202. The cooling water entering the outdoor heat exchanger 202 exchanges heat with the refrigerant in the outdoor heat exchanger 202, absorbs heat from the external environment through the first heat exchange module 301, and then returns to the first water pump. 302, forming a circulation. Since the ambient temperature is very low under heating conditions, the temperature of the cooling water after absorbing heat from the ambient temperature is still relatively low, which can be used to cool the controller of compressor 100 and the exhaust side of housing 1. The cooling water in the application end water circulation loop 400 enters the indoor heat exchanger 204 under the pumping of the second water pump 402. The cooling water entering the indoor heat exchanger 204 exchanges heat with the refrigerant in the indoor heat exchanger 204, and releases heat to the application site through the second heat exchange module 401 to form a heating effect in the application site.
[0054] The integrated thermal management system of this embodiment is particularly suitable for vehicles, enabling the application of vertical high back pressure compressors in vehicles. When applied to vehicles, both the outdoor heat exchanger 202 and the indoor heat exchanger 204 are plate heat exchangers. The integrated thermal management system is installed in the front compartment for cooling or heating the passenger compartment, i.e., the application location is the passenger compartment.
[0055] Based on the integrated thermal management system of the present invention, an embodiment of the present invention also provides a vehicle, wherein the vehicle of this embodiment includes the integrated thermal management system described above.
[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.
Claims
1. A compressor, characterized in that, The device includes a hollow housing (1), which includes an upper housing part (1a) for accommodating a motor and a lower housing part (1b) for accommodating a pump body. The refrigerant compressed by the pump body is discharged from the upper housing part (1a). The upper housing part (1a) is provided with a cooling channel (2) independent of the internal space of the housing (1). The cooling channel (2) has a channel inlet (2a) for cooling water to flow in and a channel outlet (2b) for cooling water to flow out. The cooling water flows through the cooling channel (2) and absorbs the heat inside the housing (1).
2. The compressor according to claim 1, characterized in that, A regulating valve (3) and a temperature sensing element (4) are provided at the inlet (2a) of the flow channel. The temperature sensing element (4) is used to sense the temperature change of the housing (1). The regulating valve (3) adjusts the flow rate of cooling water flowing into the inlet (2a) in response to the sensing element (4) sensing the temperature change of the housing (1).
3. The compressor according to claim 2, characterized in that, The temperature sensing element (4) includes a hollow temperature sensing bulb (41) and paraffin wax (42) encapsulated in the internal space of the temperature sensing bulb (41). One end of the temperature sensing bulb (41) is connected to the regulating valve (3), and the other end is in contact with the housing (1). The paraffin wax (42) senses the temperature change of the housing (1) and undergoes a phase change to generate volume expansion or contraction, which drives the regulating valve (3) to adjust the flow rate of cooling water flowing into the inlet (2a) of the flow channel.
4. The compressor according to claim 3, characterized in that, The regulating valve (3) includes a valve body (31) with a hollow interior forming a valve cavity (30), and a valve stem (32) and a spring (33) disposed within the valve cavity (30). The valve cavity (30) is provided with an inlet port (30a) for cooling water to enter, and a first outlet port (30b) and a second outlet port (30c) located on both sides of the inlet port (30a) and respectively connected to a bypass and the flow channel inlet (2a). The temperature sensing bulb (41) is disposed within the second outlet port (30c). One end of the valve stem (32) is provided with a valve disc (34), which can... The valve stem (32) is movably disposed between the first water outlet (30b) and the second water outlet (30c) and can close either the first water outlet (30b) or the second water outlet (30c). The spring (33) elastically abuts against the valve disc (34) and causes the valve disc (34) to close the second water outlet (30c). The other end of the valve stem (32) is provided with a connecting plate (35). The connecting plate (35) is movably connected to the internal space of the temperature sensing bulb (41) and forms a closed receiving cavity with the temperature sensing bulb (41). The paraffin wax (42) is disposed in the receiving cavity.
5. The compressor according to claim 1, characterized in that, A channel (21) is provided on the outer side wall of the upper part (1a) of the housing and a sealing plate (22) is connected to the channel (21). The sealing plate (22) and the channel (21) together form the cooling channel (2).
6. The compressor according to claim 1, characterized in that, The cooling channel (2) extends in a serpentine shape.
7. The compressor according to claim 1, characterized in that, A water-cooled plate (5) is provided on the outer wall of the housing (1) at the location where the compressor controller is installed. The water-cooled plate (5) is provided with an inlet (5a) for cooling water to flow in and an outlet (5b) for cooling water to flow out. The outlet (5b) is connected to the flow channel inlet (2a). The cooling water flows through the water-cooled plate (5) and absorbs the heat of the controller.
8. An integrated thermal management system, comprising a refrigerant circulation loop (200), an environmental water circulation loop (300), and an application water circulation loop (400), wherein the refrigerant circulation loop (200) is equipped with a compressor, a four-way valve (201), an outdoor heat exchanger (202), an expansion valve (203), an indoor heat exchanger (204), and a gas-liquid separator (205); the environmental water circulation loop (300) releases or absorbs heat to the external environment after heat exchange with the outdoor heat exchanger (202); and the application water circulation loop (400) absorbs or releases heat to the application site after heat exchange with the indoor heat exchanger (204), characterized in that... The compressor is the compressor as described in any one of claims 1 to 7, and the cooling channel (2) is connected to the environmental end water circulation loop (300) and located upstream of the outdoor heat exchanger (202).
9. The integrated thermal management system according to claim 8, characterized in that, The four-way valve (201), the outdoor heat exchanger (202), the expansion valve (203), the indoor heat exchanger (204), and the gas-liquid separator (205) are integrated on the housing (1).
10. A vehicle, characterized in that, Including the integrated thermal management system as described in claim 8 or 9.
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Liquid-cooled quick plug-in shelter
CN122318179A