CN112428774A

CN112428774A - Fluid control element and thermal management system thereof

Info

Publication number: CN112428774A
Application number: CN202011235491.XA
Authority: CN
Inventors: 董海锋; 董军启
Original assignee: Sanhua Holding Group Co Ltd
Current assignee: Sanhua Holding Group Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-03-02
Anticipated expiration: 2040-11-06
Also published as: CN112428774B; CN114407612A

Abstract

The application discloses a fluid control element, which comprises a first plate heat exchanger, a second plate heat exchanger, a circulation plate and a valve control part, wherein the circulation plate is at least partially positioned between the first plate heat exchanger and the second plate heat exchanger, the circulation plate comprises a valve body part, the valve control part is installed on the valve body part, the first plate heat exchanger is provided with a first flow passage, and the second plate heat exchanger is provided with a second flow passage; the flow plate is internally provided with a pore passage, and the valve control part controls the on-off between the pore passage and at least one of the first flow passage and the second flow passage. The first plate heat exchanger and the second plate heat exchanger are arranged on the two opposite side faces of the circulating plate, the valve control portion is arranged on the circulating plate to achieve on-off of the pore channel, the first flow channel and the second flow channel, connecting pipelines are saved, and integration and miniaturization design of the fluid control element are facilitated.

Description

Fluid control element and thermal management system thereof

Technical Field

The present application relates to the field of thermal management technologies, and in particular, to a fluid control element and a thermal management system thereof.

Background

The heat management system of the related art comprises two plate heat exchangers and a fluid control valve, and the two elements need to be connected through pipelines, so that the occupied space is large, and the integration level is low. In the related art, two plate heat exchangers are mounted on the same side of a circulating plate, a fluid control valve is mounted on the circulating plate, the two plate heat exchangers are mounted on the same side of the circulating plate, the occupied space of one side is large, and the occupied space of a fluid control element cannot be reasonably utilized.

Disclosure of Invention

The purpose of this application is to provide an integrated fluid control component, its occupation space is reasonable.

The application provides a fluid control element, which comprises a first plate heat exchanger, a second plate heat exchanger, a circulation plate and a valve control part, wherein the circulation plate is at least partially positioned between the first plate heat exchanger and the second plate heat exchanger, the circulation plate comprises a valve body part, the valve control part is installed on the valve body part, the first plate heat exchanger is provided with a first flow passage, and the second plate heat exchanger is provided with a second flow passage;

the flow plate is internally provided with a pore passage, and the valve control part controls the on-off between the pore passage and at least one of the first flow passage and the second flow passage;

the flow plate comprises a first side surface and a second side surface, the first side surface and the second side surface are located on two opposite sides of the flow plate, the first plate heat exchanger is mounted on the first side surface, and the second plate heat exchanger is mounted on the second side surface.

Compared with the prior art, each component in the fluid control component is directly integrated together, connecting pipelines are saved, the integrated design of the fluid control component is facilitated, the circulation plate is at least partially located between the first plate type heat exchanger and the second plate type heat exchanger, and the reasonable utilization of the space of the internal component of the fluid control component is facilitated.

It is another object of the present application to provide a thermal management system.

The application provides a heat management system, which comprises the fluid control element, a first indoor heat exchanger, a second indoor heat exchanger, a first outdoor heat exchanger, a second outdoor heat exchanger, a battery heat exchanger, a motor heat exchanger, a water pump and the fluid control element, the heat management system comprises a refrigerant flow path and a cooling liquid flow path, the first indoor heat exchanger, the second indoor heat exchanger and the first outdoor heat exchanger can be communicated with the refrigerant flow path, the battery heat exchanger, the motor heat exchanger and the water pump can be communicated with a cooling liquid flow path, the first flow channel and the second flow channel can be communicated with the cooling liquid flow path, wherein the cells of the flow plate include a refrigerant cell and a coolant cell, the refrigerant cell and the coolant cell are not in communication, the refrigerant port may be capable of communicating with a refrigerant flow path, and the coolant port may be capable of communicating with a coolant flow path.

Compared with the prior art, the fluid control element directly integrates all elements in the fluid control element, saves connecting pipelines and is beneficial to the integration and miniaturization design of a thermal management system.

Drawings

FIG. 1 is a schematic perspective view of a fluid control element according to an embodiment of the present application;

FIG. 2 is an exploded schematic view of a fluid control element according to an embodiment of the present application;

FIG. 3 is an exploded view of another perspective of a fluid control element according to an embodiment of the present application;

FIG. 4 is a schematic perspective view of a compressor according to an embodiment of the present application;

FIG. 5 is a schematic cross-sectional perspective view of a fluid control element according to an embodiment of the present application;

FIG. 6 is a schematic view in perspective cut-away of a longitudinal direction of a fluid control element according to an embodiment of the present application;

FIG. 7 is another perspective cutaway view of the longitudinal direction of a fluid control element according to an embodiment of the present application;

FIG. 8 is another perspective cutaway view of the longitudinal direction of a fluid control element according to an embodiment of the present application;

FIG. 9 is a schematic perspective view of a flow-through plate according to an embodiment of the present application;

FIG. 10 is a schematic perspective view from another perspective of a flow-through plate according to an embodiment of the present application;

FIG. 11 is an exploded schematic view of a flow-through plate according to an embodiment of the present application;

FIG. 12 is an exploded view from another perspective of a flow plate according to an embodiment of the present application;

FIG. 13 is another perspective cutaway view of the longitudinal direction of a fluid control element according to an embodiment of the present application;

FIG. 14 is another perspective cutaway view of the longitudinal direction of a fluid control element according to an embodiment of the present application;

FIG. 15 is a partially exploded schematic view of a fluid control member according to an embodiment of the present application;

FIG. 16 is an exploded view of another perspective portion of a fluid control member in accordance with an embodiment of the present application;

FIG. 17 is an exploded schematic view of a fluid control element according to an embodiment of the present application;

FIG. 18 is an exploded view of another perspective of a fluid control element according to an embodiment of the present application;

FIG. 19 is a partially exploded schematic view of a fluid control member according to an embodiment of the present application;

FIG. 20 is an exploded view of another perspective portion of a fluid control member in accordance with an embodiment of the present application;

FIG. 21 is a system diagram of a thermal management system in a cooling mode according to an embodiment of the present application;

FIG. 22 is a system diagram of a thermal management system in a heating mode according to an embodiment of the present application;

FIG. 23 is a system diagram of a thermal management system in a cooling mode and a battery motor cooling mode according to an embodiment of the present application;

FIG. 24 is a system diagram of a thermal management system in a cooling mode and a battery motor cooling mode according to another embodiment of the present application;

FIG. 25 is a system diagram illustrating a thermal management system in a heating mode and a battery motor waste heat recovery mode according to an embodiment of the present application;

FIG. 26 is a system diagram of a thermal management system in a heating mode and a battery motor waste heat recovery mode according to another embodiment of the present application;

FIG. 27 is a system diagram of a thermal management system in a heating mode and a battery heating mode according to an embodiment of the present application;

FIG. 28 is a system diagram of a thermal management system in a heating mode and a battery heating mode according to another embodiment of the present application;

FIG. 29 is a system diagram of a thermal management system in a dehumidification or defogging mode according to an embodiment of the present application.

FIG. 30 is a system diagram of a thermal management system in a de-icing or defrost mode according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1 to 5, the present application provides a fluid control member 10 including a compressor 11, an accumulator 12, a first plate heat exchanger 13, a second plate heat exchanger 14, a first throttle 15, a second throttle 16, a third throttle 17, a fourth throttle 18, a first cut-off valve 19, a second cut-off valve 20, a first check valve 21, a second check valve 22, a flow plate 23, and a bracket plate 24.

As shown in fig. 1 to 10, the first throttle 15 includes a first valve body portion 151 and a first valve control portion 152, the second throttle 16 includes a second valve body portion 161 and a second valve control portion 162, the third throttle 17 includes a third valve body portion 171 and a third valve control portion 172, the fourth throttle 18 includes a fourth valve body portion 181 and a fourth valve control portion 182, the first cut valve 19 includes a fifth valve body portion 191 and a fifth valve control portion 192, and the second cut valve 20 includes a sixth valve body portion 201 and a sixth valve control portion 202.

The first, second, third, fourth, fifth, and sixth

valve body portions

151, 161, 171, 181, 191, and 201 are formed on the communication plate 22, or the first, second, third, fourth, fifth, and sixth

valve body portions

151, 161, 171, 181, 191, and 201 are integrally formed with the communication plate 22. The first valve control part 152, the second valve control part 162, the third valve control part 172, the fourth valve control part 182, the fifth valve body part 191, and the sixth valve control part 202 are respectively attached to the first valve body part 151, the second valve body part 161, the third valve body part 171, the fourth valve body part 181, the fifth valve body part 191, and the sixth valve body part 201. The installation can be direct installation or the installation of an intermediate spacing element; the installation part is in sealing connection, and the sealing connection can be realized by adopting modes of brazing, gluing and the like.

As shown in fig. 9 and 10, the first valve body 151, the second valve body 161, the third valve body 171, the fourth valve body 181, the fifth valve body 191, and the sixth valve body 201 are provided with a first valve hole 153, a second valve hole 163, a third valve hole 173, a fourth valve hole 183, a fifth valve hole 193, and a sixth valve hole 203, respectively. The first valve control part 152, the second valve control part 162, the third valve control part 172, the fourth valve control part 182, the fifth valve control part 192, and the sixth valve control part 202 are respectively attached to the first valve hole 153, the second valve hole 163, the third valve hole 173, the fourth valve hole 183, the fifth valve hole 193, and the sixth valve hole 203. Optionally, at least one of the first throttle 15, the second throttle 16, the third throttle 17, the fourth throttle 18, the first cut-off valve 19, and the second cut-off valve 20 is a solenoid valve. The first valve control part 152, the second valve control part 162, the third valve control part 172, the fourth valve control part 182, the fifth valve body part 191 and the sixth valve control part 202 are respectively provided with a valve rod, a valve core, a stator and a rotor, when the coil of the stator is electrified, the rotor rotates to drive the valve rod to move in the corresponding valve hole, and therefore at least one state of full opening, blocking and throttling is achieved. In other alternative embodiments, at least one of the first throttle 15, the second throttle 16, the third throttle 17, the fourth throttle 18, the first stop valve 19, and the second stop valve 20 is a thermal expansion valve.

The first throttle valve 15, the second throttle valve 16, the third throttle valve 17, and the fourth throttle valve 18 each have a closed (off) state and a throttle (on) state, and the first cutoff valve 19 and the second cutoff valve 20 each have a closed (off) state and a communication (on) state. When the throttle valve is in an opening state, the throttle valve is in a throttling state, and when the stop valve is in an opening state, the stop valve is in a communicating state. In alternative embodiments, the throttle valve may also have a full-on state.

As shown in fig. 7 and 8, the first plate heat exchanger 13 includes a first flow passage 131 and a third flow passage 132, the first flow passage 131 is used for flowing a refrigerant, and the third flow passage 132 is used for flowing a coolant. The first flow channel 131 and the third flow channel 132 are not communicated with each other, and the refrigerant flowing through the first flow channel 131 and the coolant flowing through the third flow channel 132 can exchange heat with each other by the first plate heat exchanger 13. The first plate heat exchanger 13 comprises a first connection pipe 25, a second connection pipe 26, a bottom plate 27, a top plate 28 and a number of plates 29. Each panel 29 includes a first corner aperture 291, a second corner aperture 292, a third corner aperture 293 and a fourth corner aperture 294. The first angled hole 291 and the second angled hole 292 are located on the same side in the width direction of the first plate heat exchanger 13, and the third angled hole 293 and the fourth angled hole 294 are located on the other side in the width direction of the first plate heat exchanger 13. The first angled hole 291 and the third angled hole 293 are located on the same side of the first plate heat exchanger 13 in the longitudinal direction, and the second angled hole 292 and the fourth angled hole 294 are located on the other side of the first plate heat exchanger 13 in the longitudinal direction. The bottom plate 27 has only a first corner hole 291 and a second corner hole 292, and the bottom plate 27 is sealingly arranged at a third corner hole 293 and a fourth corner hole 294 of the adjacent plate 29. The top plate 28 has only third and fourth corner holes 293, 294, and the top plate 28 is sealingly disposed at the first and second corner holes 291, 292 of adjacent panels 29. The first corner holes 291 of all of the sheets 29 are aligned to form a first channel 295, the second corner holes 292 of all of the sheets 29 are aligned to form a second channel 296, the third corner holes 293 of all of the sheets 29 are aligned to form a third channel 297, and the fourth corner holes 294 of all of the sheets 29 are aligned to form a fourth channel 298.

The lumen 251 of the first adapter 25 communicates with the third channel 297 and the lumen 261 of the second adapter 26 communicates with the fourth channel 298. A number of plates 29 are stacked to form first 299 and second 290 interplate passages arranged alternately in the plate stacking direction, all first interplate passages 299 being in communication with first 295 and second 296 passages, and all second 290 and third 297 and fourth 298 passages. The first plate interspaces 299, the first passages 295, the second passages 296 and the first and second corner holes 291, 292 in the bottom plate 27 form the first flow channel 131. The lumen 251 of the first adapter 25, the lumen 261 of the second adapter 26, the third channel 297, the fourth channel 298 and the second plate-to-plate channel 290 form the third flow passage 132.

The second plate heat exchanger 14 is arranged symmetrically to the first plate heat exchanger 13, and similarly, the second plate heat exchanger 14 has a second flow path 141 and a fourth flow path 142, the second flow path 141 is used for flowing a refrigerant, and the fourth flow path 142 is used for flowing a coolant. The second flow passage 141 and the fourth flow passage 142 are not communicated, and the refrigerant flowing through the second flow passage 141 and the coolant flowing through the fourth flow passage 142 can exchange heat with each other through the second plate heat exchanger 14. The second plate heat exchanger 14 comprises a third connecting pipe 25 ', a fourth connecting pipe 26 ', a bottom plate 27 ', a top plate 28 ' and a number of plates 29 '. Each panel 29 ' includes a first angled hole 291 ', a second angled hole 292 ', a third angled hole 293 ', and a fourth angled hole 294 '. The first and second angled holes 291 ', 292' are located on the same side in the width direction of the second plate heat exchanger 14, and the third and fourth angled holes 293 ', 294' are located on the other side in the width direction of the second plate heat exchanger 14. The first angled hole 291 'and the third angled hole 293' are located on the same side of the second plate heat exchanger 14 in the longitudinal direction, and the second angled hole 292 'and the fourth angled hole 294' are located on the other side of the second plate heat exchanger 14 in the longitudinal direction. The bottom plate 27 ' has only first and second corner holes 291 ' and 292 ', and the top plate 28 has only third and fourth corner holes 293 ' and 294 '. The first corner holes 291 'of all sheets 29' are aligned to form a first channel 295 ', the second corner holes 292' of all sheets 29 'are aligned to form a second channel 296', the third corner holes 293 'of all sheets 29' are aligned to form a third channel 297 ', and the fourth corner holes 294' of all sheets 29 'are aligned to form a fourth channel 298'.

Lumen 251 'of third adapter 25' communicates with third channel 297 ', and lumen 261' of second adapter 26 'communicates with fourth channel 298'. A number of plates 29 ' are stacked to form first 299 ' and second 290 ' plate interspaces alternating in the plate stacking direction, all first 299 ' plate interspaces communicating with first 295 ' and second 296 ' passages, and all second 290 ' and third 297 ' plate interspaces communicating with fourth 298 '. The first plate interspaces 299 ', the first passages 295', the second passages 296 'and the first and second corner holes 291' and 292 'in the bottom plate 27' form said second flow passage 141. Lumen 251 'of third nozzle 25' communicates with third channel 297 ', and lumen 261' of fourth nozzle 26 'communicates with fourth channel 298'. The lumen 251 ' of the third adapter 25 ', the lumen 261 ' of the second adapter 26 ', the third channel 297 ', the fourth channel 298 ' and the second plate-to-plate channel 290 ' form the fourth flow channel 142.

The flow plate 23 is at least partially located between the first plate heat exchanger 13 and the second plate heat exchanger 14, the flow plate 23 has a port 31 inside, and the valve control portion controls opening and closing between the port 31 and at least one of the first flow passage 131 and the second flow passage 141. As shown in fig. 8 to 10, the flow plate 23 comprises a first side 236 and a second side 237, the first side 236 and the second side 237 being located at opposite sides of the flow plate 23, the first plate heat exchanger 13 being mounted at the first side 236 and the second plate heat exchanger 14 being mounted at the second side 237. The first valve control portion 152 controls opening and closing between the port 31 and the first flow passage 131, and the second valve control portion 162 controls opening and closing between the port 31 and the second flow passage 141.

As shown in fig. 5, the orifice 31 includes a first orifice 311, a second orifice 312, a third orifice 313 and a fourth orifice 314, the second orifice 312 is communicated with the first flow channel 131, and the fourth orifice 314 is communicated with the second flow channel 141. The first valve control portion 152 controls opening and closing between the first port 311 and the second port 312, the second valve control portion 162 controls opening and closing between the third port 313 and the fourth port 314, and the first port 311 and the third port 312 communicate with each other. The third valve control portion 172 controls opening and closing of the first orifice 311 and the outside of the fluid control element 100, and the fourth valve control portion 182 controls opening and closing of the third orifice 312 and the outside of the fluid control element 100.

Referring to fig. 5, 6 and 13 to 16, the liquid reservoir 12 includes a cylinder 121, a cover 122 and a molecular sieve 128. The cylinder 121 has a reservoir 123, and the molecular sieve 128 is accommodated in the reservoir 123. The cover 122 includes an inlet channel 124 and an outlet channel 125, the inlet channel 124 is communicated with the duct 31, the outlet channel 125 is communicated with the duct 31, the cover 122 covers the end of the cylinder 121, and at least a portion of the cover 122 is located in the cylinder 121. In the illustrated embodiment, the cover 122 is assembled and fixed to the flow plate 23, and the cover 122 and the flow plate 23 are each provided with an internal threaded hole 32, and are rotationally fixed to an internal thread of the internal threaded hole 32 by an external thread of a bolt 33. In an alternative embodiment, the flow plate 23 of the cover 122 is an integral structure and can be integrally formed by forging and casting or extrusion, so that the assembly process of screws and threads can be omitted, the assembly cost is lower, and the sealing performance is better. The cover 122 and flow-through plate 23 assembly fixture can accommodate more complex duct designs inside, as well as the advantage of simpler manufacturing per individual component. The inlet channel 124 and the outlet channel 125 also form part of said porthole 31 when the cover 122 is of one piece construction with the flow-through plate 23. In other alternative embodiments, the reservoir 12 may be a U-shaped tube to achieve gas-liquid separation, and the reservoir 12 may be a gas-liquid separator. In other optional implementations, the liquid storage device 12 may further include an inner cylinder and an outer cylinder, the inner cylinder is provided with a gas-liquid separation member, and the interlayer cavity between the inner cylinder and the outer cylinder is provided with a heat exchange tube, so as to realize heat exchange between the high-pressure side refrigerant and the low-pressure side refrigerant.

As shown in fig. 5 and 13, the inlet passage 124 includes a first inlet passage 126 and a second inlet passage 127, the fluid control element 100 includes a first check valve 41 and a second check valve 42, the bore 31 includes a fifth bore 315 and a sixth bore 316, the first check valve 41 is located within the fifth bore 315, and the second check valve 42 is located within the sixth bore 316. The first inlet passage 126 is communicated with the fifth port 315, the second inlet passage 124 is communicated with the sixth port 316, the first check valve 41 controls the connection and disconnection between the first inlet passage 126 and the outside of the fluid control element 10, and the second check valve 42 controls the connection and disconnection between the second inlet passage 127 and the outside of the fluid control element 10. The outlet passage 125 communicates with the first bore 311, and the outlet passage 125 communicates with the third bore 312.

The orifice 31 includes a seventh orifice 317 and an eighth orifice 318, the fifth valve control portion 192 controls the opening and closing of the seventh orifice 317 and the exterior of the fluid control element 10, and the sixth valve control portion 202 controls the opening and closing of the eighth orifice 318 and the exterior of the fluid control element 100. Seventh orifice 317 is not in communication with first orifice 311 in flow plate 23, eighth orifice 318 is not in communication with first orifice 311 in flow plate 23, and seventh orifice 317 is in communication with eighth orifice 318.

As shown in fig. 4, the compressor 11 includes a motor portion 111, a compression portion 112, an inlet portion 113, an outlet portion 114, and a power supply connection portion 115. The motor part 111 includes a stator and a rotor, and the compression part 112 includes an orbiting scroll and a fixed scroll, which are coaxially connected. The power connection part 115 is electrically connected to the stator, and when the power connection part 115 is energized, the rotor is driven by the magnetic field changed by the stator to rotate, thereby driving the scroll to move, and the orbiting scroll compresses the low-temperature and low-pressure refrigerant at the inlet part 113 and discharges the high-temperature and high-pressure refrigerant from the outlet part 114. The compressor 11 may be an electric compressor driven by electric power supplied from a battery of an electric vehicle.

As shown in fig. 5, the port 31 includes a ninth port 319, and the outlet portion 114 of the compressor 11 is directly connected to the flow plate 23, where direct connection means that there is no pipe connection between the outlet portion 114 and the flow plate 23, and the outlet portion 114 and the flow plate 23 may be fixedly connected by soldering, gluing, mechanical fixing, and the like, and sealed at the connection. Outlet portion 114 is structured to mate with one of flow plates 23 as a protrusion 71 and the other as a recess 72. In the embodiment shown, the outlet portion 114 is provided with a boss-like projection 71 and the flow plate 23 is provided with a counter-bore-like recess 72. Of course, the outlet 113 and the flow plate 23 may be directly connected by a connecting block. In other alternative embodiments, the outlet portion 113 of the compressor 11 and the flow plate 23 may be integrally formed, so that the integration degree is higher, and the assembly process between the outlet portion 113 of the compressor 11 and the flow plate 23 is saved. Outlet section 113 has an outlet channel 116, which outlet channel 116 communicates with ninth orifice 319, ninth orifice 319 communicates with seventh orifice 318, and ninth orifice 319 communicates with eighth orifice 318.

As shown in fig. 5 and 8, the orifice 31 includes a tenth orifice 310, the tenth orifice 310 and the second orifice 312 are not in communication within the flow plate 23, and the tenth orifice 310 and the fourth orifice 314 are not in communication within the flow plate 23. The first flow channel 131 is communicated between the second hole passage 312 and the tenth hole passage 310, and the second flow channel 141 is communicated between the fourth hole passage 314 and the tenth hole passage 310. The fluid control element 10 further comprises a connecting pipeline 34, one end of the connecting pipeline 34 is connected with the inlet portion 113 of the compressor 11, the other end of the connecting pipeline 34 is connected with the flow plate 23, and the lumen of the connecting pipeline 34 is communicated with the air inlet passage 117 and the tenth orifice 310 of the inlet portion 113.

As shown in fig. 17 and 18, the support plate 24 is fixedly connected to the flow plate 23, the support plate 24 includes a first side plate 241, a second side plate 242, and a bottom plate 243, and the first side plate 241 and the second side plate 242 are connected to opposite sides of the bottom plate 243. The first side plate 241, the second side plate 242, and the bottom plate 243 form a first receiving groove 244, the reservoir 12 is at least partially positioned in the receiving groove 244, and the bottom plate 243 is fixed to the circulation plate 23. The bracket plate 24 further includes a first extension plate 245 and a second extension plate 246 extending from the first side plate 241 or/and the second side plate 242 away from the first receiving groove 244, wherein the first extension plate 245 extends in a direction perpendicular to the first side plate 241 or/and the second side plate 242, and the second extension plate 246 extends in a direction perpendicular to the first side plate 241 or/and the second side plate 242. The first extension plate 245 is perpendicular to the second extension plate 246 and the first extension plate 245 is arranged next to the flow plate 23.

The fluid control member 10 includes a plurality of screws 35, the flow plate 23, the first extension plate 245 and the bottom plate 243 have a plurality of threaded holes 36, and the screws 35 fixedly connect the first extension plate 245, the bottom plate 243 and the flow plate 23 together. The second extension plate 245 is provided with a fixing hole 37, and the fixing hole 37 is used to fix the fluid control member 10 to an external member. The fluid control member 10 includes a flange portion 38, the flange portion 38 is mounted to the second extension plate 245, the flange portion 38 is provided with the fixing hole 37, and the fixing hole 37 is used for fixedly connecting the fluid control member 10 with an external member.

Referring to fig. 5, 9 to 12, and 19 to 20, the flow plate 23 includes a first plate 231, a second plate 232, and a third plate 233, and the second plate 232 and the third plate 233 are disposed on opposite sides of the first plate 231. The first via 311 includes a first sub-via 411 and a second sub-via 412, and the third via 313 includes a third sub-via 413 and a fourth sub-via 414. The first and third sub-wells 411, 413 are located in the first plate 231, the first and third sub-wells 411, 413 are in communication, the second sub-well 412 is located in the second plate 232, and the fourth sub-well 414 is located in the third plate 233. The first valve body portion 151 is provided integrally with the second plate 232, and the second valve body portion 161 is provided integrally with the third plate 233. The third valve body portion 171 is provided integrally with the second plate 232, and the third valve control portion 172 controls the opening/closing of the second sub-orifice 412 to the outside of the fluid control element 10. The fourth valve body portion 181 is provided integrally with the third plate 233, and the fourth valve control portion 182 controls the opening and closing of the fourth sub-orifice 414 to the outside of the fluid control element 100.

The flow-through plate 23 comprises a fourth plate 234 and a fifth plate 235, the fourth plate 234 being at least partly sandwiched between the first plate 231 and the second plate 232, and the fifth plate 235 being at least partly sandwiched between the first plate 231 and the third plate 233. The first cell line 311 has a fifth sub-cell line 415, and the fifth sub-cell line 415 connects the first sub-cell line 411 and the second sub-cell line 412. The second port 312 has a sixth sub-port 416, the sixth sub-port 416 communicating between the third sub-port 413 and the fourth sub-port 414.

The second plate 232 has a seventh sub-porthole 417, the fourth plate 234 has an eighth sub-porthole 418, the seventh sub-porthole 417 communicates with one end of the first flow channel 131, the second porthole 312 communicates with the other end of the first flow channel 131, one end of the eighth sub-porthole 418 communicates with the seventh sub-porthole 417, the other end of the eighth sub-porthole 418 communicates with the tenth porthole 310, and the tenth porthole 310 is located in the first plate 231. As shown in fig. 19 and 20, the second plate 232 further has a cavity 421, wherein the cavity 421 is located between the second sub-orifice 412 and the seventh sub-orifice 417, and the provision of the cavity 421 reduces the weight of the flow plate 23, thereby reducing the weight of the fluid control element 10 and facilitating the light weight design of the fluid control element 10. Likewise, the second plate 232 also has a cavity and is not described again.

The third plate 233 has a ninth porthole 419, the fifth plate 235 has a tenth porthole 410, the ninth porthole 419 communicates with one end of the second flow passage 141, the fourth port 414 communicates with the other end of the second flow passage 141, one end of the ninth porthole 419 communicates with the tenth porthole 410, and the other end of the tenth porthole 410 communicates with the tenth porthole 310.

The first plate 231 has a first surface 51, a second surface 52, a third surface 53 and a fourth surface 54, the first surface 51 and the second surface 52 are located on opposite sides of the first plate 231 in the thickness direction, and the third surface 53 and the fourth surface 54 are located on opposite sides of the first plate 231 in the width direction. The fifth and

sixth valve portions

191 and 201 are provided on the first face 51 side, the cylinder 121 is provided on the second face 52 side, the first plate heat exchanger 13 is provided on the third face 53 side, and the second plate heat exchanger 14 is provided on the fourth face 54 side. Valve, reservoir 12, first plate heat exchanger 13, second plate heat exchanger 14 are installed respectively in four different sides of first board 231, can reasonable make full use of space, are favorable to the miniaturized setting of integrated component.

The first plate 231 includes a base 55 and an extension 56, the extension 56 is perpendicular to the base 55, the base 55 has a width greater than that of the extension 56, and the second plate 232 and the third plate 233 are disposed on opposite sides of the extension 56. The longitudinal direction of the second plate 232, the longitudinal direction of the fourth plate 234, and the longitudinal direction of the first plate heat exchanger 13 are parallel to each other, and the longitudinal direction of the third plate 233, the longitudinal direction of the fifth plate 235, and the longitudinal direction of the second plate heat exchanger 14 are parallel to each other. The longitudinal direction of the first plate heat exchanger 13 is parallel to the thickness direction of the first plate 231, the longitudinal direction of the second plate heat exchanger 14 is parallel to the thickness direction of the second plate 232, and the longitudinal direction of the cylinder 121 is parallel to the longitudinal direction of the first plate heat exchanger 13.

As shown in fig. 21 and 22, a thermal management system 60 includes a first indoor heat exchanger 61, a second indoor heat exchanger 62, a first outdoor heat exchanger 63, a second outdoor heat exchanger 64, a battery heat exchanger 65, a motor heat exchanger 66, a first water pump 67, a second water pump 68, a fluid switching valve 69, a third cut-off valve 70, and a fluid control element 10. In the figure, the solid line indicates the communication state, the arrows indicate the flow direction of the refrigerant/coolant, and the broken line indicates that the passages are closed by the corresponding valve elements.

The fluid control element 10 comprises a compressor 11, an accumulator 12, a first plate heat exchanger 13, a second plate heat exchanger 14, a first throttle 15, a second throttle 16, a third throttle 17, a fourth throttle 18, a first shut-off valve 19, a second shut-off valve 20, a first check valve 21 and a second check valve 22.

The thermal management system 60 has a refrigerant flow path with a plurality of operating modes including a cooling mode and a heating mode;

as shown in fig. 21, in the cooling mode, the first stop valve 19 is opened, the second stop valve 20 and the third stop valve 70 are closed, the third throttle valve 17 is opened, the fourth throttle valve 18 is closed, the compressor 11, the first stop valve 19, the first outdoor heat exchanger 63, the first check valve 21, the accumulator 12, the third throttle valve 17, and the first indoor heat exchanger 61 are communicated to form a refrigerant circuit, and the third throttle valve 17 is in a throttling state to throttle and depressurize the refrigerant.

Referring to fig. 1 to 6, 13 to 14 and 21, the operation process of the cooling mode is as follows: the compressor 11 discharges the compressed high-temperature and high-pressure refrigerant from the outlet portion 114 of the compressor 11, enters the ninth orifice 319 and the seventh orifice 317, flows into the first outdoor heat exchanger 63 through the pipeline after passing through the first stop valve 19 of the fluid control element 10, releases heat to the environment through the first outdoor heat exchanger 63, flows to the fifth orifice 315 and the first check valve 21 of the fluid control element 10 through the pipeline, enters the reservoir 123 of the reservoir 12 through the first inlet channel 126, flows out to the first orifice 311 from the outlet channel 125, throttles and reduces pressure through the third throttle valve 17, flows out from the third throttle valve 17, throttles the refrigerant to low-temperature and low-pressure refrigerant, absorbs the temperature of air in the air conditioning box 93 when the low-temperature and low-pressure refrigerant flows out of the fluid control element 10 through the pipeline to the second indoor heat exchanger 62, thereby refrigerating the passenger compartment and circulating it back to the inlet portion 113 of the compressor 11 through a line.

As shown in fig. 22, in the heating mode, the first stop valve 19 is closed, the second stop valve 20 and the third stop valve 70 are opened, the third throttle valve 17 is closed, and the fourth throttle valve 18 is opened. The compressor 11, the second stop valve 20, the first indoor heat exchanger 61, the second check valve 22, the accumulator 12, the fourth throttle valve 18, and the first outdoor heat exchanger 63 are communicated to form a refrigerant circuit, and the fourth throttle valve 18 is in a throttling state and is used for throttling and depressurizing the refrigerant.

Referring to fig. 1 to 6, 13 to 14 and 22, the heating mode operation process includes: the compressor 11 discharges the compressed high-temperature and high-pressure refrigerant from the outlet portion 114 of the compressor 11, enters the ninth orifice 319 and the eighth orifice 318, passes through the second stop valve 20 of the fluid control element 10, flows into the first indoor heat exchanger 61 through a pipeline, releases heat into the air conditioner through the first indoor heat exchanger 61, heats the passenger compartment, flows to the sixth orifice 316 and the second check valve 22 of the fluid control element 10 through a pipeline, enters the liquid storage chamber 123 of the liquid reservoir 12 through the second inlet channel 127, flows out of the outlet channel 125 to the third orifice 313, throttles the pressure of the refrigerant through the fourth throttle valve 18, flows out of the third throttle valve 18 after being throttled down, throttled down by the fourth throttle valve 18 into low-temperature and low-pressure refrigerant, absorbs heat from the environment when flowing out of the fluid control element 10 through a pipeline to the first outdoor heat exchanger 63, and then through a line through a third stop valve 70 and back to the inlet section 113 of the compressor 11.

As shown in fig. 21 and 22, the thermal management system 60 also has a coolant flow path having a plurality of communication modes. The thermal management system 60 further includes a kettle 72, an electric heater 73, a first water valve 81, a second water valve 82, a third water valve 83, and a fourth water valve 84. The thermal management system 60 also includes an outdoor fan 91 and an indoor fan 92. The first outdoor heat exchanger 63, the second outdoor heat exchanger 64, and the outdoor fan 91 may be combined together to form a front end module 94, and the front end module 94 is generally disposed outside the vehicle air conditioning compartment 93 near the front bumper of the vehicle. The first indoor heat exchanger 61, the second indoor heat exchanger 62, and the indoor fan 92 are disposed in the air conditioning compartment 93, and the air flow generated by the indoor fan 92 may be delivered to the passenger compartment or the front and rear windshields through an air duct and an in-vehicle duct. The indoor fan 92 may be blower driven and the outdoor fan 91 may be motor/generator driven. The electric heater 73 may be a PTC electric heater. The first water valve 81, the second water valve 82, the third water valve 83 and the fourth water valve 84 are shown as three-way water valves, and in an alternative embodiment, each water valve may be formed by two stop valves/check valves to form a three-way function. In the illustrated embodiment, the fluid switching valve 69 is a four-way water valve, and in alternative embodiments, the three-way water valve may be combined with one stop valve/check valve to form a similar function, or four stop valves/check valves may be combined to form a similar function.

As shown in fig. 23, 26 to 28, the first water pump 67, the electric heater 73, and the battery heat exchanger 65 are communicated with each other to form the first coolant flow path 71, or as shown in fig. 24 and 25, the first water pump 67, the third flow path 132 of the first plate heat exchanger 13, and the battery heat exchanger 65 are communicated with each other to form the first coolant flow path 71. The switching communication of the first water valve 81, the second water valve 82 and the fluid switching valve 69 realizes the switching of the different modes.

In an alternative embodiment, the electric heater 73 may be eliminated, i.e., the first water pump 67 and the battery heat exchanger 65 are communicated to form the first coolant loop 71. The battery is heated through the refrigerant flow path.

As shown in fig. 23 and 24, the second water pump 68, the motor heat exchanger 66, and the second outdoor heat exchanger 64 are communicated to form the second coolant flow path 72, or as shown in fig. 25 to 28, the second water pump 68, the motor heat exchanger 66, and the fourth flow path 142 of the second plate heat exchanger 14 are communicated to form the second coolant flow path 72. The switching communication of the third water valve 81, the fourth water valve 82 and the fluid switching valve 69 realizes the switching of the different modes.

The first flow channel 131 of the first plate heat exchanger 13 is communicable with the refrigerant flow path, and the second flow channel 141 of the second plate heat exchanger 14 is communicable with the refrigerant flow path. The first flow channel 131 and the third flow channel 132 are not communicated, and the refrigerant in the first flow channel 131 and the coolant in the third flow channel 132 can exchange heat. The second flow path 141 and the fourth flow path 142 are not communicated, and the refrigerant in the second flow path 141 and the coolant in the fourth flow path 142 can exchange heat.

As shown in fig. 23 to 28, the fluid switching valve 69 has a first communication state in which the first coolant circuit 71 and the second coolant circuit 72 communicate in series with each other as the same coolant circuit, and a second communication state in which the first coolant circuit 71 and the second coolant circuit 72 connect in parallel two coolant circuits that do not communicate with each other.

As shown in fig. 23 and 24, the fluid switching valve 69 has a first port 691, a second port 692, a third port 693, and a fourth port 694. When the fluid switching valve 69 is in the first communication state, the first port 691 and the second port 692 communicate with each other, and the third port 693 and the fourth port 694 communicate with each other. When the fluid switching valve 69 is in the second communication state, the first port 691 and the fourth port 694 communicate with each other, and the second port 692 and the third port 693 communicate with each other.

The various elements within the fluid control device 10 are integrated directly without any piping between the various elements, or only with the inlet port 113 of the compressor 11 and the flow channel 23.

As shown in fig. 23, the thermal management system 60 is in a cooling mode and a battery motor cooling mode, and the cooling mode is described above and will not be described again. In the battery motor cooling mode, a first water pump 67, a first water valve 81, an electric heater 73, a second water valve 82, a battery heat exchanger 65, a fluid switching valve 69, a second water pump 68, a motor heat exchanger 66, a third water valve 83, a second outdoor heat exchanger 64, a fourth water valve 84 and the fluid switching valve 69 are communicated, the first water pump 67 and the second water pump 68 generate driving force to drive cooling liquid to circularly move, a first cooling liquid loop 71 and a second cooling liquid loop 72 are connected in series to form a large loop, power battery heat and driving motor heat of the electric automobile are brought to the second outdoor heat exchanger 64 through cooling liquid in the battery heat exchanger 65 and the motor heat exchanger 66 to dissipate heat, the second outdoor heat exchanger 64 dissipates the cooling liquid in the second outdoor heat exchanger 64 under the blowing of an outdoor fan 94, therefore, the battery and the motor are cooled, and the temperature of the battery and the motor is controlled within the working temperature range.

Referring now to FIG. 24, another embodiment of a thermal management system 60 is shown in a cooling mode and a battery motor cooling mode, the cooling mode being described above and not described further herein. The first cooling liquid loop 71 and the second cooling liquid loop 72 are connected in parallel to form a loop which is not communicated, in the second cooling liquid loop 72, heat of a driving motor of the electric automobile is brought to the second outdoor heat exchanger 64 through cooling liquid in the motor heat exchanger 66 to dissipate heat, and the second outdoor heat exchanger 64 dissipates heat of the cooling liquid in the second outdoor heat exchanger 64 under the blowing of the outdoor fan 94, so that the cooling of the motor is realized. In the first cooling liquid circuit 71, the battery heat exchanger 65 absorbs the heat of the power battery of the electric vehicle by the cooling liquid in the battery heat exchanger 65, and the first water pump 65 drives the cooling liquid to exchange heat with the refrigerant flow path in the first plate heat exchanger 13, so that the purpose of rapidly cooling the battery is achieved.

As shown in fig. 25, the thermal management system 60 is in a heating mode and a battery-motor waste heat recovery mode, the first coolant loop 71 and the second coolant loop 72 are connected in parallel to form a loop which is not communicated, the coolant in the battery heat exchanger 65 and the motor heat exchanger 66 respectively carry heat to the power battery and the driving motor, the first flow channel 131 of the first plate heat exchanger 13 is communicated with the refrigerant flow path, and the second flow channel 141 of the second plate heat exchanger 14 is communicated with the refrigerant flow path. The refrigerant in the first flow channel 131 absorbs heat of the coolant in the third flow channel 132, and the refrigerant in the second flow channel 141 absorbs heat of the coolant in the fourth flow channel 142. The refrigerants in the first plate heat exchanger 13 and the second plate heat exchanger 14 absorb heat of the cooling liquid loop, so that waste heat recovery of the battery and the motor is realized, the energy efficiency ratio of the system is improved, and the endurance mileage of the electric automobile is enhanced.

As shown in fig. 26, another embodiment of the thermal management system 60 in the heating mode and the battery motor waste heat recovery mode is different from the embodiment of fig. 24 mainly in that the first cooling liquid loop 71 and the second cooling liquid loop 72 are connected in series, and the battery and motor heat can be recovered through the second plate heat exchanger 14. Of course, in an alternative embodiment, the first coolant circuit 71 and the second coolant circuit 72 are connected in series, and the battery and motor heat may also be recovered by the first plate heat exchanger 13.

As shown in fig. 27, the thermal management system 60 is in a heating mode and a battery heating mode. The first cooling liquid loop 71 and the second cooling liquid loop 72 are connected in series, and the heat of the motor absorbed by the motor heat exchanger 66 can heat the power battery corresponding to the battery heat exchanger 65, so that in a low-temperature state in winter, the temperature of the battery is low, and the risk that the battery is low in working efficiency or cannot run is reduced. The motor heat is also fully recycled, which may improve the energy efficiency of the thermal management system 60.

As shown in fig. 28, the thermal management system 60 is in another embodiment of a heating mode and a battery heating mode. The first cooling liquid loop 71 and the second cooling liquid loop 72 are not communicated in parallel, and the motor heat absorbed by the motor heat exchanger 66 can be recycled to the refrigerant loop, so that the waste heat recovery is realized, and the energy efficiency ratio of the heat management system 60 is improved. The power battery corresponding to the battery heat exchanger 65 can be directly and rapidly heated by the electric heater 73, so that the battery can be rapidly preheated in winter in a low-temperature state, and the power battery can work in a proper temperature range.

As shown in fig. 29, the thermal management system 60 is in the dehumidification or defogging mode, the high-temperature and high-pressure refrigerant compressed by the compressor 11 flows into the first indoor heat exchanger 61 through the second stop valve 20, passes through the second check valve 22 and the accumulator 12, then passes through the third throttle valve 17, the third throttle valve 17 throttles and reduces the pressure of the refrigerant into the low-temperature and low-pressure refrigerant, and then flows into the second indoor heat exchanger 62 and returns to the compressor 11. Air in the environment is driven by the indoor fan to firstly pass through the second indoor heat exchanger 62, the low-temperature refrigerant in the second indoor heat exchanger 62 absorbs heat, moisture in the air is condensed into condensed water to be separated out, the air is heated into dry air by the high-temperature refrigerant in the first heat exchanger, the dry air is blown to front and rear windshields through air doors and pipelines in the automobile, fog on the glass is defogged, or the dry air is blown to a passenger cavity to dehumidify the passenger cavity.

As shown in fig. 30, the thermal management system 60 is in the deicing or defrosting mode, in winter, the first outdoor heat exchanger 63 absorbs the outside temperature, and when the temperature is lower than zero and the humidity reaches the dew-point temperature, the first outdoor heat exchanger 63 may frost or freeze, which affects the normal operation of the first outdoor heat exchanger 63, or even the heat cannot be absorbed from the air. At this time, frost or ice on the surface of the first outdoor heat exchanger 63 needs to be heated and removed, and the high-temperature and high-pressure refrigerant compressed by the compressor 11 flows into the first outdoor heat exchanger 63 through the first shut-off valve 19 to be defrosted or deiced, passes through the first check valve 21 and the accumulator 12, and then returns to the compressor through the second throttle valve 16. The first coolant circuit 72 transfers heat generated by the motor in the motor heat exchanger 66 to the refrigerant circuit through the second plate heat exchanger 14, thereby avoiding the undesirable user experience of reduced passenger compartment temperature due to heat absorption of the refrigerant entering the second indoor heat exchanger 63.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims

1. A fluid control element comprising a first plate heat exchanger, a second plate heat exchanger, a flow plate at least partially between the first plate heat exchanger and the second plate heat exchanger, the flow plate comprising a valve body portion, and a valve control portion mounted to the valve body portion, the first plate heat exchanger having a first flow passage and the second plate heat exchanger having a second flow passage;

2. The fluid control element according to claim 1, wherein the valve control portion includes a first valve control portion and a second valve control portion, the valve body portion includes a first valve body portion and a second valve body portion, the first valve control portion is attached to the first valve body portion, the second valve control portion is attached to the second valve body portion, the first valve control portion controls opening and closing between the orifice and the first flow passage, and the second valve control portion controls opening and closing between the orifice and the second flow passage.

3. The fluid control element according to claim 2, wherein the orifice includes a first orifice, a second orifice communicating with the first flow passage, a third orifice communicating with the second flow passage, and a fourth orifice communicating with the second flow passage, the first valve control portion controls (on/off between) the first orifice and the second orifice, the second valve control portion controls on/off between the third orifice and the fourth orifice, and the first orifice and the third orifice communicate.

4. The fluid control element of claim 3, wherein the valve body portion comprises a third valve body portion and a fourth valve body portion, and wherein the valve control portion comprises a third valve control portion and a fourth valve control portion, wherein the third valve control portion controls the opening and closing of the first orifice and the exterior of the fluid control element, and wherein the fourth valve control portion controls the opening and closing of the third orifice and the exterior of the fluid control element.

5. The fluid control element of claim 4, wherein the fluid control element comprises a reservoir comprising a barrel having a reservoir cavity and a cap comprising an inlet channel and an outlet channel, the inlet channel being in communication with the bore and the outlet channel being in communication with the bore, the cap covering an end of the barrel, the cap being at least partially disposed within the barrel;

the cover body and the circulation plate are of an integral structure, or the cover body and the circulation plate are assembled and fixed.

6. The fluid control element according to claim 5, wherein the inlet passage comprises a first inlet passage and a second inlet passage, the fluid control element comprises a first check valve and a second check valve, the ports comprise a fifth port and a sixth port, the first check valve is located in the fifth port, the second check valve is located in the sixth port, the first inlet passage is in communication with the fifth port, the second inlet passage is in communication with the sixth port, the first check valve controls the opening and closing of the first inlet passage to the exterior of the fluid control element, and the second check valve controls the opening and closing of the second inlet passage to the exterior of the fluid control element;

the outlet passage communicates with the first bore and the outlet passage communicates with the third bore.

7. The fluid control element according to claim 6, wherein the orifice includes a seventh orifice and an eighth orifice, the valve body includes a fifth valve body portion and a sixth valve body portion, the valve control portion includes a fifth valve control portion and a sixth valve control portion, the fifth valve control portion is mounted to the fifth valve body portion, the sixth valve control portion is mounted to the sixth valve body portion, the fifth valve control portion controls the opening and closing of the seventh orifice and the outside of the fluid control element, and the sixth valve control portion controls the opening and closing of the eighth orifice and the outside of the fluid control element;

the seventh hole channel is not communicated with the first hole channel in the flow plate, the eighth hole channel is not communicated with the first hole channel in the flow plate, and the seventh hole channel is communicated with the eighth hole channel.

8. The fluid control element of claim 7, wherein the orifice comprises a ninth orifice, the fluid control element further comprising a compressor, the compressor comprising an inlet section and an outlet section, the outlet section directly connected to the flow plate, the outlet section having an air outlet channel, the air outlet channel in communication with the ninth orifice, the ninth orifice in communication with the seventh orifice, the ninth orifice in communication with the eighth orifice.

9. The fluid control element according to claim 8, wherein the orifice includes a tenth orifice, the tenth orifice and the second orifice are not communicated in the flow plate, the tenth orifice and the fourth orifice are not communicated in the flow plate, the first flow passage is communicated between the second orifice and the tenth orifice, the second flow passage is communicated between the fourth orifice and the tenth orifice, the fluid control element further includes a connecting line, one end of the connecting line is connected to the inlet portion of the compressor, the other end of the connecting line is connected to the flow plate, and a lumen of the connecting line communicates the intake passage of the inlet portion and the tenth orifice.

10. The fluid control element machine of claim 9, wherein the fluid control element comprises a support plate fixedly attached to the flow plate, the support plate comprising a first side plate, a second side plate, and a bottom plate, the first side plate and the second side plate attached to opposite sides of the bottom plate, the first side plate, the second side plate, and the bottom plate defining a receptacle, the reservoir being at least partially positioned within the receptacle, the bottom plate being secured to the flow plate.

11. The fluid control element of claim 10, wherein the flow-through plate comprises a first plate, a second plate, and a third plate, the second plate and the third plate being disposed on opposite sides of the first plate, the first orifice comprising a first sub-orifice and a second sub-orifice, the third orifice comprising a third sub-orifice and a fourth sub-orifice;

the first sub-pore passage and the third sub-pore passage are positioned on the first plate and are communicated, the second sub-pore passage is positioned on the second plate, and the fourth sub-pore passage is positioned on the third plate;

the first valve body portion is provided integrally with the second plate, and the second valve body portion is provided integrally with the third plate.

12. The fluid control element according to claim 11, wherein the third valve body portion and the second plate are integrally provided, the third valve control portion controlling the external make-and-break of the second sub-orifice with the fluid control element; the fourth valve body part and the third plate are integrally arranged, and the fourth valve control part controls the on-off of the fourth sub-pore passage and the outside of the fluid control element.

13. A fluid control element as defined in claim 12, wherein the first valve body portion and the first valve control portion constitute a first choke, the second valve body portion and the second valve control portion constitute a second choke, the third valve body portion and the third valve control portion constitute a third choke, and the fourth valve body portion and the fourth valve control portion constitute a fourth choke;

the fifth valve body part and the fifth valve control part form a first stop valve, and the sixth valve body part and the sixth valve control part form a second stop valve;

the first throttle valve, the second throttle valve, the third throttle valve and the fourth throttle valve are in a closed state and a throttling state, and the first stop valve and the second stop valve are in a closed state and a communicating state.

14. The fluid control element of claim 11, wherein the flow-through plate comprises a fourth plate at least partially sandwiched between the first plate and the second plate and a fifth plate at least partially sandwiched between the first plate and the third plate;

the first duct has a fifth sub-duct communicating the first and second sub-ducts; the second cell channel has a sixth sub-channel communicating the third and fourth sub-channel.

15. The fluid control element according to claim 11, wherein the second plate has a seventh sub-orifice, the fourth plate has an eighth sub-orifice, the seventh sub-orifice communicates with one end of the first flow passage, the second orifice communicates with the other end of the first flow passage, one end of the eighth sub-orifice communicates with the seventh sub-orifice, the other end of the eighth sub-orifice communicates with a tenth orifice, the tenth orifice is located in the first plate;

the third plate is provided with a ninth sub-orifice, the fifth plate is provided with a tenth sub-orifice, the ninth sub-orifice is communicated with one end of the second flow passage, the fourth orifice is communicated with the other end of the second flow passage, one end of the ninth sub-orifice is communicated with the tenth sub-orifice, and the other end of the tenth sub-orifice is communicated with the tenth orifice.

16. The fluid control element according to any one of claims 1 to 15 wherein the first plate heat exchanger further comprises a first connection tube and a second connection tube, the first plate heat exchanger further having a third flow passage, the third flow passage being in communication with a lumen of the first connection tube, the third flow passage being in communication with a lumen of the second connection tube, the third flow passage being for flow of coolant, the first flow passage being for flow of refrigerant, the first and third flow passages not being in communication.

17. The fluid control member of claim 16 wherein the second plate heat exchanger further includes a third nozzle and a fourth nozzle, the second plate heat exchanger further having a fourth flow passage, the fourth flow passage communicating with the lumen of the third nozzle, the fourth flow passage communicating with the lumen of the fourth nozzle, the fourth flow passage for flowing the coolant, the second flow passage for flowing the refrigerant, the second flow passage and the fourth flow passage not communicating.

18. The fluid control element according to claim 11, wherein the first plate has first, second, third and fourth surfaces, the first and second surfaces being on opposite sides in a thickness direction of the first plate, the third and fourth surfaces being on opposite sides in a width direction of the first plate, the fifth and sixth valve portions being provided on a side of the first surface, the cylinder being provided on a side of the second surface, the first plate heat exchanger being provided on a side of the third surface, and the second plate heat exchanger being provided on a side of the fourth surface.

19. The fluid control member of claim 18, wherein the first plate includes a base portion and an extension portion, the extension portion being perpendicular to the base portion, the base portion having a width greater than a width of the extension portion, the second plate and the third plate being disposed on opposite sides of the extension portion.

20. The fluid control member according to claim 14, wherein a length direction of the second plate, a length direction of the fourth plate, and a length direction of the first plate heat exchanger are parallel to each other, a length direction of the third plate, a length direction of the fifth plate, and a length direction of the second plate heat exchanger are parallel to each other, a length direction of the first plate heat exchanger is parallel to a thickness direction of the first plate, and a length direction of the second plate heat exchanger is parallel to a thickness direction of the second plate;

the length direction of the cylinder is parallel to the length direction of the first plate heat exchanger.

21. A thermal management system comprising the fluid control element of any of claims 1 to 20, a first indoor heat exchanger, a second indoor heat exchanger, a first outdoor heat exchanger, a second outdoor heat exchanger, a battery heat exchanger, a motor heat exchanger, and a water pump, the heat management system comprises a refrigerant flow path and a cooling liquid flow path, the first indoor heat exchanger, the second indoor heat exchanger and the first outdoor heat exchanger can be communicated with the refrigerant flow path, the battery heat exchanger, the motor heat exchanger, the water pump and the second outdoor heat exchanger can be communicated with a cooling liquid flow path, the first flow channel and the second flow channel can be communicated with the cooling liquid flow path, wherein the cells of the flow plate include a refrigerant cell and a coolant cell, the refrigerant cell and the coolant cell are not in communication, the refrigerant port may be capable of communicating with a refrigerant flow path, and the coolant port may be capable of communicating with a coolant flow path.