Integrated unit

Abstract

The present invention discloses an integrated unit for application in a vehicle thermal management system. The device includes a connection part (10) and a liquid storage part (20) that are connected as a whole, the liquid storage part (20) having a liquid storage chamber (30), the connection part (10) having a hole, the hole including a first hole (111) and a second hole (112) that are individually arranged, the first hole (111) including a first inlet (1111) and a first outlet (1112), the working medium enters the first hole (111) from the first inlet (1111) and exits the first hole (111) via the first outlet (1112), and the liquid storage chamber (30) is in communication with the second hole (112). It is possible, the second hole (112) includes a third outlet (1121), and the working medium that has passed through the liquid storage chamber (30) exits the second hole (112) through the third outlet; the connection part (10) has a mounting base, and the mounting base is connected to the first hole (111) or the second hole (112), so that the valve device in the vehicle thermal management system can be located on the mounting base; and by arranging the mounting base and the hole in the connection part, multiple connection ports are provided for the assembly of the integrated unit and the vehicle thermal management system, which makes the assembly of the integrated unit more convenient and simplifies the assembly process.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application filed with the China National Intellectual Property Administration on July 25, 2020, with the application number 202010726746.6 and the invention title "Integrated Unit", and all of its contents are incorporated herein by reference.

[0002] The present invention relates to a member of a vehicle thermal management system, and more specifically to an integrated unit.

Background Art

[0003] The vehicle thermal management system includes an air conditioning system, and this air conditioning system includes a liquid reservoir and a valve unit. Generally, the liquid reservoir and the valve unit are connected to the system by pipelines. Thus, the installation of the members is complicated, the occupied space is large, and when the functions of these members are satisfied, it is a problem how to simplify the installation and make the structure more compact.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The object of the present invention is to provide an integrated unit for simplifying installation and making the structure more compact.

Means for Solving the Problems

[0005] To achieve the above object, the present invention provides an integrated unit applied to a vehicle thermal management system, the integrated unit includes a connection part and a liquid storage part which are integrally connected, the liquid storage part has a liquid storage chamber, the connection part has a pore channel, and the pore channel includes a first pore channel and a second pore channel which are separately arranged. The first pore channel includes a first inlet and a first outlet, a working medium enters the first pore channel from the first inlet, and at least a part of the working medium exits the first pore channel through the first outlet, and the liquid storage chamber can communicate with the second pore channel. And this second channel includes a third outlet. The working medium that has passed through the liquid storage chamber exits the second channel through the third outlet. The connection part has a mounting base, and by communicating with the first channel or the second channel, the elements in the vehicle thermal management system are located on the mounting base.

[0006] In the integrated unit of the present invention, the connection part is sealed and connected to the liquid storage part. Also, the connection part has a mounting base, and by communicating with the first channel or the second channel, the mounting elements in the vehicle thermal management system are located on the mounting base. The connection part provides a plurality of connection ports for the assembly of the integrated unit and the vehicle thermal management system, facilitating the assembly of the integrated unit, simplifying the assembly process, and having a simple and compact configuration of the integrated unit, eliminating the need to separately arrange the connecting pipes.

Brief Description of the Drawings

[0007]

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Embodiments for Carrying Out the Invention

[0008] Hereinafter, the present invention will be further described based on the drawings and specific examples.

[0009] The integrated unit of the present invention is applied to a vehicle thermal management system. Here, the vehicle may be a new energy vehicle. Referring to FIGS. 1 - 29, the integrated unit 100 generally includes a connection part 10 and a liquid storage part 20 which are connected. And this connection part 10 has a pore path, and this pore path includes a first pore path 111 and a second pore path 112 which are individually arranged. The integrated unit 100 has a liquid storage chamber 30 for storing a liquid working medium, and in the first channel 111, a first inlet 1111, a first outlet 1112 and / or a second outlet 1113 are formed on the outer surface of the wall of the connection part 10. The working medium enters the first channel 111 from the first inlet 1111, and at least a part of the working medium exits the first channel 111 through the first outlet 1112 and / or the second outlet 1113. The liquid storage chamber 30 can communicate with the second channel 112. And in this second channel 112, a third outlet 1121 is formed on the outer surface of the wall of the connection part 10. The connection part 10 has a mounting base, and by communicating with the first channel 111 or the second channel 112, the mounting element in the vehicle thermal management system is located on the mounting base. And this mounting element includes a valve member and a sensor, etc. The valve member includes a first valve part, a second valve part, a first check valve and a second check valve. The sensor includes a first temperature sensor and a second temperature sensor. The connection part 10 in the present invention provides a plurality of connection ports and a mounting base for the assembly of the integrated unit and the vehicle thermal management system. Also, it is assembled with the liquid storage part to realize the liquid storage function, facilitate the assembly of the integrated unit, simplify the assembly process, and the structure of the integrated unit is simple and compact, eliminating the need for separate arrangement of connecting pipes. In the following embodiments, the above-mentioned plurality of connection ports include a first inlet 1111, a first outlet 1112 and the following second inlet, third outlet 1121, third inlet, second outlet 1113. The mounting base includes a first mounting base 41 and a second mounting base 42. The first inlet 1111 is connected to the outlet of the compressor in the vehicle thermal management system. The first outlet 1112 is connected to the inlet of the indoor condenser. The second inlet is connected to the outlet of the indoor condenser. The third outlet 1121 is connected to the inlet of the intermediate heat exchanger. During the docking process with the system, the connection part 10 can provide connection support. For example, at the position of this connection port, a stud with one end fixed to the connection part 10 and the other end protruding from the surface of the connection part 10 is arranged to easily dock with the pipeline of the system. The connection part 10 includes two position limiting parts 1100. The first outlet 1112 and the second outlet 1113 are formed in the position limiting part 1100, and this position limiting part 1100 can support and position-limit the valve body 72 of the valve part.

[0010] Figs. 1 to 12 are an integrated unit of the first embodiment, and this integrated unit 100 includes a first valve part 70, a second valve part 80, a connection part 10, and a liquid storage part 20. And this connection part 10 has a pore channel, and this pore channel includes a first pore channel 111 and a second pore channel 112 which are separately arranged. The liquid storage part 20 of the integrated unit 100 has a liquid storage chamber 30, and a first inlet 1111, a first outlet 1112, and a second outlet 1113 are formed on the outer surface of the wall of the connection part 10 for the first pore channel 111. The working medium enters the first pore channel 111 from the first inlet 1111, exits the first pore channel 111 through the first outlet 1112 and the second outlet 1113, the liquid storage chamber 30 can communicate directly with the second pore channel 112, a third outlet 1121 is formed on the outer surface of the wall of the connection part for the second pore channel 112, the connection part 10 has a mounting base, and the mounting base includes a first mounting base 41 and a second mounting base 42. Both the first mounting base 41 and the second mounting base 42 communicate with the first pore channel 111. In other words, a part of the first valve part 70 is located on the first mounting base 41 and is fixed and connected to the connection part 10, and a part of the second valve part 80 is located on the second mounting base 42 and is fixed and connected to the connection part 10. The first valve part 70 and the second valve part 80 are two-way valves. By controlling the first valve part 70, the pressure of the working medium between the first inlet 1111 and the first outlet 1112 can be changed, and by controlling the second valve part 80, the pressure of the working medium between the first inlet 1111 and the second outlet 1113 can be changed. The integrated unit may include only one valve part, that is, the first valve part 70 and the second valve part 80 as a whole. This valve part is a three-way valve, and at least a part of this valve part is located on the mounting base and is located between the first outlet 1112 and the second outlet 1113. By controlling the valve part, the pressure of the working medium in the first pore channel 111 can be changed.

[0011] In the integrated unit 100 in the present embodiment shown in FIGS. 3 to 12, it further includes a check valve and a temperature sensor. The number of check valves is two, named the first check valve 51 and the second check valve 52. In this embodiment, the temperature sensor is the first temperature sensor 61.

[0012] The connection portion 10 has a third passage 113 and a fourth passage 114. The second inlet 1131 is an opening formed on the surface of the wall of the connection portion 10 in the third passage 113. The working medium enters the third passage 113 through the second inlet 1131. The third passage 113 communicates with the inlet of the liquid storage chamber 30. The entire first check valve 51 is located in the third passage 113. The first check valve 51 is connected so as to be position-limited in the connection portion 10, and can prevent the backflow of the working medium from the liquid storage chamber 30 to the second inlet 1131. And the entire second check valve 52 is located in the fourth passage 114. The third inlet 1141 is an opening formed on the surface of the wall of the connection portion 10 in the fourth passage 114. The working medium enters the fourth passage 114 through the third inlet 1141. The fourth passage 114 communicates with the inlet of the liquid storage chamber 30. The second check valve 52 can prevent the backflow of the working medium from the liquid storage chamber 30 to the third inlet 1141.

[0013] The sensing head of the first temperature sensor 61 is located in the third passage 113. The first temperature sensor 61 is fixedly connected to the connection portion 10. The sensing head of the first temperature sensor 61 is located between the second inlet 1131 and the first check valve 51. The first temperature sensor 61 can detect the temperature of the working medium entering the liquid storage chamber 30.

[0014] To facilitate the assembly connection between the integrated unit and the vehicle thermal management system, the first inlet 1111 and the third outlet 1121 are located on the same side of the connection portion 10. Specifically, the first inlet 1111 and the third outlet 1121 are located at the ceiling of the connection part 10 and between the first valve part 70 and the second valve part 80. The first outlet 1112 and the second inlet 1131 are located on the same side of the side wall of the connection part 10, and the third inlet 1141 and the second outlet 1113 are located on the same side of the side wall of the connection part 10. As a result, the connection ports of the integration unit are arranged in pairs, and the joints of the vehicle thermal management system can be connected in pairs, which is convenient for assembly.

[0015] The liquid storage part 20 shown in FIGS. 5 and 12 includes a liquid collecting pipe 21. In FIG. 5, the liquid collecting pipe 21 and the liquid storage chamber 30 are coaxially arranged. The liquid collecting pipe 21 communicates the liquid storage chamber 30 with the second hole passage 112, and the second hole passage 112 includes a first segment 1102 and a second segment 1122. And these first segment 1102 and second segment 1122 are arranged to intersect with each other. In other words, the first segment 1102 and the second segment 1122 are arranged to communicate with each other. And the first segment 1102 is perpendicular to the liquid collecting pipe 21, and the second segment 1122 is parallel to this liquid collecting pipe 21. In this embodiment, the structure of the liquid collecting pipe 21 is simple, and the second hole passage 112 is relatively complex. In this embodiment, the connection part 10 is formed by processing from a profile. In order to process the first segment 1102, this first segment 1102 communicates with the outer periphery of the connection part 10. In order to prevent the leakage of the working medium, a cap 91 is provided on the first segment 1102.

[0016] The liquid collecting pipe 21 shown in FIG. 12 includes a first sub - part 211, a second sub - part 212, and a transition segment 213. And the first sub - part 211 and the second sub - part 212 are arranged in parallel and connected by the transition segment 213. The first sub - part 211 and the liquid storage chamber 30 are coaxially arranged. The liquid collecting pipe 21 communicates the liquid storage chamber 30 with the second hole passage 112, and the second hole passage 112 and the second sub - part 212 of the liquid collecting pipe are coaxially arranged.

[0017] The connecting part 10 shown in FIGS. 3 and 6 includes a cylindrical part 12 and a main body part 13. This main body part 13 has the above-mentioned pore channels, the cylindrical part 12 extends downward from the main body part 13, and the liquid storage part 20 has a housing 24 that is welded to the cylindrical part 12 and sealed. And the inner circumference of the cylindrical part 12 constitutes the first part 31 of the liquid storage chamber 30, the housing 24 constitutes the second part 32 of the liquid storage chamber 30, and there is a predetermined distance from the welding joint between the housing 24 and the cylindrical part 12 to the main body part 13. Thereby, the influence of the heat of welding on the mounting elements of the connecting part 10 is avoided, and the mounting elements include a first check valve, a second check valve, and a first temperature sensor. The inlets of the third pore channel 113 and the fourth pore channel 114 formed in the liquid storage chamber 30 are located between the central axis of this liquid storage chamber 30 and the inner wall of the cylindrical part 12. Specifically, the inlets 113a and 114a of the third pore channel 113 and the fourth pore channel 114 in the liquid storage chamber 30 are located at the 1 / 2 position between the central axis of the liquid storage chamber 30 and the inner wall of the cylindrical part 12.

[0018] The first pore channel 111 shown in FIGS. 3 and 8 does not communicate with the first part of the liquid storage chamber 30 formed by the cylindrical part 12. The working medium shown in FIGS. 3 and 9 enters the first part 31 of the liquid storage chamber 30 formed by the cylindrical part 12 from the second inlet 1131 through the third pore channel 113, and enters the second part 32 of the liquid storage chamber 30 formed by the cylindrical part 12 from the third inlet 1141 through the fourth pore channel 114. The central axes of the first pore channel 111, the third pore channel 113, and the fourth pore channel 114 shown in FIG. 11 are located in the same horizontal plane of the connecting part 10. This horizontal plane may be the cross-section of FIG. 11. In this way, the same processing reference can be used.

[0019] In this embodiment, both the first valve part 70 and the second valve part 80 include a driving part 71 and a valve body 72. The valve body 72 is spherical and has a valve body passage 721, and the driving part 71 can rotate the valve body 72. Then, the valve body passage 721 may communicate with the first orifice passage 111, and by adjusting the flow areas of the valve body passage 721 and the first orifice passage 111, the pressure of the working medium in the first orifice passage 111 may be adjusted, or the communication / blocking state of the first orifice passage 111 may be adjusted. The valve portion may be one, and a three-way ball valve is selected.

[0020] Figs. 13 to 22 show an integrated unit according to the second embodiment. Compared with the first embodiment, the main difference is as follows: the liquid storage portion 20 further includes a lid body 22. The housing 24 and the lid body 22 are sealingly connected. The liquid storage chamber 30 is located between the housing 24 and the lid body 22. The connection portion 10 and the lid body 22 are sealingly connected. This lid body 22 has a first inlet passage 221 and an outlet passage 222. The liquid storage chamber 30 communicates with the second orifice passage 112 through the outlet passage 222. The second inlet 1131 is an opening formed on the upper surface of the lid body 22 in the first inlet passage 221. The lid body 22 further has a second inlet passage (not shown). This second inlet passage is the same as the configuration of the first inlet passage 221. The third inlet 1141 is an opening formed on the upper surface of the lid body 22 in the second inlet passage.

[0021] In this embodiment, the lid body 22 is positioned to be inserted into the connection portion 10. After positioning, it is fixed by welding. The connection portion 10 is located on one side of the central axis O - O of the liquid storage chamber 30. The outlet passage 222 includes a first sub-segment 2221, a second sub-segment 2222, and a third sub-segment 2223. And the first sub-segment 2221 communicates with the liquid storage chamber 30. The second sub-segment 2222 is located between the first sub-segment 2221 and the third sub-segment 2223. Furthermore, the central axis of the first sub-segment 2221 and the central axis O - O of the liquid storage chamber 30 are coaxially arranged. The central axis of the third sub-segment 2223 is arranged parallel to the central axis of the liquid storage chamber 30. The central axis of the second sub-segment 2222 is arranged perpendicular to the central axis of the liquid storage chamber 30. For the limitation of the cross-sectional position in FIG. 15, in the drawing, the first sub-segment 2221 and the second sub-segment 2222 are shown by dashed lines. The cover 22 is formed by processing from a profile material. The structure of the liquid collecting pipe 21 is simple, and the combination and processing of the two are relatively easy.

[0022] The first check valve 51 is located in the first inlet passage 221 and is connected to be position-limited by the cover 22. The first inlet passage 221 communicates with the liquid storage chamber 30, and the cover 22 further has a second inlet passage. And a second check valve (not shown) is located in the second inlet passage and is connected to be position-limited by the cover 22. The second inlet passage communicates with the liquid storage chamber 30.

[0023] In this embodiment, the temperature sensor is the second temperature sensor 62. The sensing head of this second temperature sensor 62 is located in the second hole passage 112, and the second temperature sensor 62 is fixedly connected to the connection part 10. Specifically, the sensing head of the second temperature sensor 62 is adjacent to the third outlet 1121, and the second temperature sensor can detect the temperature of the working medium at the outlet of the liquid storage chamber.

[0024] The connection part 10 shown in FIGS. 15 to 22 has a first inlet 1111, a first hole passage 111, a second hole passage 112, a first mounting base 41, and a second mounting base 42. And the first hole passage 111 includes a first outlet 1112 and a second outlet 1113, and the second hole passage 112 includes a third outlet 1121, a second inlet 1131, and a third inlet 1141 located on the cover 22. The working medium enters the first hole passage 111 from the first inlet 1111, exits the first hole passage 111 through the first outlet 1112 and the second outlet 1113. The first valve part 70 is located on the first mounting base 41, and the second valve part 80 is located on the second mounting base 42. By controlling the first valve part 70, the pressure of the working medium between the first inlet 1111 and the first outlet 1112 can be changed. By controlling the second valve part 80, the pressure of the working medium between the first inlet 1111 and the second outlet 1112 can be changed. Then, the working medium enters the liquid storage chamber 30 from the second inlet 1131 and the third inlet 1141. The working medium in the liquid storage chamber 30 enters the second channel 112 through the liquid collecting pipe 21 and the outlet passage 222, and exits the second channel 112 through the third outlet 1121.

[0025] To reduce the weight, the connecting part 10 has a embossed part 19 between the second channel 112 and the first channel 111, and between the second channel 112 and the mounting base.

[0026] Figures 23 to 29 show an integrated unit according to the third embodiment. The main difference from the first embodiment is as follows: namely, the liquid storage part 20 further includes a lid 22. The housing 24 and the lid 22 are sealed and connected. The liquid storage chamber 30 is located between the housing 24 and the lid 22. The connecting part 10 and the lid 22 are sealed and connected, and are positioned so as to be locked and are welded and fixed. The lid 22 has a through hole 201. The third channel 113 and the fourth channel 114 communicate with the liquid storage chamber 30 through the through hole 201. In this embodiment, the temperature sensor includes a first temperature sensor 61 and a second temperature sensor 62. Then, the sensing head of the first temperature sensor 61 is located in the third channel 113. The first temperature sensor 61 is fixed and connected to the connecting part 10. The sensing head of the first temperature sensor 61 is located between the second inlet 1131 and the first check valve. The sensing head of the second temperature sensor 62 is located in the second channel 112. The second temperature sensor 62 is fixed and connected to the connecting part 10. Specifically, the sensing head of the second temperature sensor 62 is adjacent to the third outlet 1121. Also, in this embodiment, the third outlet 1121 is located on the outer peripheral side of the connecting part 10. The connecting part 10 shown in Figure 27 includes a protrusion 15. The third outlet 1121 is located on the protrusion. In other words, the third outlet 1121 is formed on the outer surface of the protrusion 15 of the second channel 112. Thus, the protrusion can be used to engage with other members of the vehicle thermal management system, and the positioning accuracy is higher.

[0027] Here, the above embodiments do not limit the present invention. Instead, they are only used to explain the present invention, and the present invention has been described in detail with reference to the above embodiments in this specification. However, as those skilled in the art can understand, corrections or equivalent substitutions may be made to the present invention, and all improvements that do not deviate from the spirit and scope of the present invention shall fall within the scope of the present invention.

Claims

1. An integrated unit applied to a vehicle thermal management system, The integrated unit includes a connection part and a liquid storage part that are connected as a whole, The liquid storage part has a liquid storage chamber, The connection part has a pore channel, The pore channel includes a first pore channel and a second pore channel that are individually arranged, The first pore channel includes a first inlet, a first outlet and / or a second outlet. The working medium enters the first pore channel from the first inlet, and at least a part of the working medium exits the first pore channel through the first outlet and / or the second outlet. The liquid storage chamber can communicate with the second pore channel, The second pore channel includes a third outlet, The working medium that has passed through the liquid storage chamber exits the second pore channel through the third outlet. The connection part has a mounting base, The mounting base can communicate with the first pore channel or the second pore channel so that a mounting element in the vehicle thermal management system can be located on the mounting base, The connection part includes a cylindrical part and a main body part, The main body part has the pore channel, The cylindrical part extends downward from the main body part, The liquid storage part has a housing that is welded and sealed to the cylindrical part, The inner chamber of the cylindrical part constitutes a first part of the liquid storage chamber, The inner chamber of the housing constitutes a second part of the liquid storage chamber, or the liquid storage part includes a housing and a lid that are sealed and connected, The liquid storage chamber is located between the housing and the lid, The connection part and the lid are sealed and connected, The lid has a first inlet passage and an outlet passage, The liquid storage chamber communicates with the second pore channel through the outlet passage, The opening formed on the upper surface of the lid in the first inlet passage is a second inlet, The connection part has a third pore channel, The integrated unit has a second inlet, The second inlet is an opening formed on the surface of the wall of the connection part in the third pore channel. The working medium enters the third pore channel through the second inlet, The third pore channel communicates with the inlet of the liquid storage chamber, The mounting element includes a first check valve, The whole of the first check valve is located in the third pore channel, The first check valve is fixed and connected to the connection part and can prevent the flow of the working medium from the liquid storage chamber in the direction of the second inlet. An integrated unit characterized by this.

2. The mounting element includes a second check valve, The connection part has a fourth pore channel, The entire second check valve is located in the fourth channel, The integrated unit has a third inlet, The third inlet is an opening formed on the surface of the wall of the connection part in the fourth channel, and the working medium enters the fourth channel through the third inlet. The fourth channel communicates with the inlet of the liquid storage chamber, The integrated unit according to claim 1, wherein the second check valve is capable of blocking the flow of the working medium from the liquid storage chamber in the direction of the third inlet.

3. The mounting element further includes a first temperature sensor, The sensing head of the first temperature sensor is located in the third channel, The first temperature sensor is fixedly connected to the connection part, and / or the integrated unit further includes a second temperature sensor, The sensing head of the second temperature sensor is located in the second channel, The integrated unit according to claim 2, wherein the second temperature sensor is fixedly connected to the connection part.

4. The liquid storage part includes a liquid collecting pipe, The liquid collecting pipe and the liquid storage chamber are coaxially arranged, The liquid collecting pipe communicates the liquid storage chamber with the second channel or the outlet passage, The second channel includes a first segment and a second segment arranged to intersect each other, and the first segment is perpendicular to the liquid collecting pipe, The second segment is parallel to the liquid collecting pipe, or the liquid storage part includes a liquid collecting pipe, and the liquid collecting pipe includes a first sub-part, a second sub-part and a transition segment, The first sub-part and the second sub-part are arranged in parallel and are connected by the transition segment, The first sub-part and the liquid storage chamber are coaxially arranged, The liquid collecting pipe communicates the liquid storage chamber with the second channel, The integrated unit according to claim 3, wherein the second channel and the second sub-part of the liquid collecting pipe are coaxially arranged.

5. The mounting element includes a valve part which is a three-way valve, The second outlet is an opening formed on the outer surface of the wall of the connection part in the first channel, At least a part of the valve part is located on the mounting base and between the first outlet and the second outlet, and it is possible to change the pressure of the working medium in the first channel by controlling the valve part, or the mounting element includes a first valve part and a second valve part which are two-way valves, The mounting base has a first mounting base and a second mounting base, At least a part of the first valve portion is located on the first mounting base and between the first inlet and the first outlet, and by controlling the first valve portion, it is possible to change the pressure of the working medium between the first inlet and the first outlet. The connection portion further has a third inlet and a second outlet. The second outlet is an opening formed on the outer surface of the wall of the connection portion in the first passage. The integrated unit according to any one of claims 1 to 4, wherein at least a part of the second valve portion is located on the second mounting base and between the first inlet and the second outlet, and by controlling the second valve portion, it is possible to change the pressure of the working medium between the first inlet and the second outlet.

6. The first inlet and the third outlet are located on the ceiling portion of the connection portion and between the first valve portion and the second valve portion. The first outlet and the second inlet are located on the same side of the side wall of the connection portion. The integrated unit according to claim 5, wherein the third inlet and the second outlet are located on the same side of the side wall of the connection portion.

7. An integrated unit applied to a vehicle thermal management system, The integrated unit includes a connected connection portion and a liquid storage portion as a whole. The liquid storage portion has a liquid storage chamber. The connection portion has a passage. The passage includes a first passage and a second passage arranged individually. The first passage includes a first inlet, a first outlet and / or a second outlet. The working medium enters the first passage from the first inlet, and at least a part of the working medium exits the first passage through the first outlet and / or the second outlet. The liquid storage chamber can communicate with the second passage. The second passage includes a third outlet. The working medium that has passed through the liquid storage chamber exits the second passage through the third outlet. The connection portion has a mounting base. The mounting base can communicate with the first passage or the second passage so that a mounting element in the vehicle thermal management system can be located on the mounting base. The connection portion includes a cylindrical portion and a main body portion. The main body portion has the passage. The cylindrical portion extends downward from the main body portion. The liquid storage portion has a housing welded to the cylindrical portion and sealed. The inner chamber of the cylindrical portion constitutes the first part of the liquid storage chamber. The inner chamber of the housing constitutes the second part of the liquid storage chamber, or the liquid storage part includes a housing and a lid that are sealed and connected. The liquid storage chamber is located between the housing and the lid. The connection part and the lid are sealed and connected. The lid has a first inlet passage and an outlet passage. The liquid storage chamber communicates with the second hole passage through the outlet passage. The opening formed on the upper surface of the lid in the first inlet passage is the second inlet. The lid is positioned so as to be inserted into the connection part. The connection part is located on one side of the central axis of the liquid storage chamber. The outlet passage includes a first sub-segment, a second sub-segment, and a third sub-segment. The first sub-segment communicates with the liquid storage chamber. The second sub-segment is located between the first sub-segment and the third sub-segment. The central axis of the first sub-segment and the central axis of the liquid storage chamber are coaxially arranged. The central axis of the third sub-segment is arranged parallel to the central axis of the liquid storage chamber. An integrated unit, wherein the central axis of the second sub-segment is arranged perpendicular to the central axis of the liquid storage chamber.

8. The mounting element includes a first valve part and a second valve part that are two-way valves. The mounting base has a first mounting base and a second mounting base. At least a part of the first valve part is located on the first mounting base and between the first inlet and the first outlet, and by controlling the first valve part, the pressure of the working medium between the first inlet and the first outlet can be changed. The connection part further has a second outlet. The second outlet is an opening formed on the outer surface of the wall of the connection part in the first hole passage. The integrated unit according to claim 7, wherein at least a part of the second valve part is located on the second mounting base and between the first inlet and the second outlet, and by controlling the second valve part, the pressure of the working medium between the first inlet and the second outlet can be changed.

9. The integrated unit includes a first check valve. The first check valve is located in the first inlet passage and is connected to the lid so as to be position-limited. The first inlet passage communicates with the liquid storage chamber. The integrated unit according to claim 7 or claim 8, wherein the lid is inserted into and connected to the connection part.

10. The lid further has a second inlet passage, The integrated unit further includes a second check valve, The second check valve is located in the second inlet passage and is connected so as to be positionally restricted by the lid, The integrated unit according to claim 9, wherein the second inlet passage communicates with the liquid storage chamber.

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