CN115467837A - Fluid management device - Google Patents

Abstract

The fluid management device applied to the air conditioning system provided by the embodiment of the present application includes a stator assembly, a first rotor and a second rotor, the first rotor and the second rotor are respectively connected to the impeller and the valve core, such a fluid management device is relatively compact , and the fluid management device includes a stator assembly, the number of parts is correspondingly reduced, and the control is relatively simple.

Description

fluid management device

technical field

The invention relates to the technical field of fluid management, in particular to a fluid management device.

Background technique

The thermal management system includes several functional components. Different functional components require different power sources to drive. Different power sources lead to relatively complex integration of functional components and relatively large volume. Even after integration, the integrated parts are not compact enough.

Contents of the invention

The purpose of the present application is to provide a fluid management device to help solve the above problems.

One embodiment of the present application provides a fluid management device, which includes a housing, a motor assembly, an impeller, and a valve core. The motor assembly includes a stator assembly, a first rotor, and a second rotor. The stator assembly enables the first One rotor rotates, the stator assembly can make the second rotor rotate, the first rotor is in transmission connection with the impeller, the second rotor is in transmission connection with the spool, and the fluid management device has a first accommodating cavity, a second accommodating cavity and a third accommodating cavity, the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are located in the housing, at least part of the motor assembly is located in the first accommodating cavity a housing chamber, the impeller is located in the second housing chamber, and the valve core is located in the third housing chamber;

The fluid management device has a first port, a second port, a third port, a third port, a fourth port, and a fifth port, and the first port and the fourth port communicate with the second accommodating chamber respectively , the second port, the third port, and the fifth port can communicate with the third accommodation chamber, and the valve core can make at least one of the third port and the second port communicate with the fifth port.

The fluid management device applied to the air conditioning system provided by the embodiment of the application includes a stator assembly, a first rotor and a second rotor, the first rotor and the second rotor are respectively connected to the impeller and the valve core, such a fluid management device is relatively compact , and the first rotor and the second rotor of the fluid management device share a stator assembly, and a corresponding circuit board is required for control, which can also reduce parts.

Description of drawings

Fig. 1 is a schematic perspective view of the three-dimensional structure of the first embodiment of the fluid management device;

Fig. 2 is a schematic diagram of an exploded structure of the fluid management device in Fig. 1;

Fig. 3 is a schematic perspective view of the fluid management device in Fig. 1 when the second housing is removed;

Fig. 4 is a schematic top view of the fluid management device in Fig. 1;

Fig. 5 is a schematic cross-sectional structure diagram along A-A of Fig. 4;

Fig. 6 is a schematic perspective view of the three-dimensional structure of the first housing in Fig. 1;

Fig. 7 is a schematic perspective view of another perspective of the first housing in Fig. 1;

Fig. 8 is a perspective structural schematic view of the second embodiment of the fluid management device;

Fig. 9 is a schematic exploded view of the fluid management device in Fig. 8;

Fig. 10 is a schematic diagram of an exploded structure of another viewing angle of the fluid management device in Fig. 8;

Fig. 11 is a schematic diagram of an exploded structure of another viewing angle of the fluid management device in Fig. 8;

Fig. 12 is a schematic top view of the fluid management device in Fig. 8;

Fig. 13 is a schematic cross-sectional structure diagram along B-B of Fig. 12;

Fig. 14 is another schematic cross-sectional structural view of the fluid management device;

Fig. 15 is a schematic perspective view of the third embodiment of the fluid management device;

Fig. 16 is a schematic exploded view of the fluid management device in Fig. 15;

Fig. 17 is a schematic exploded view of the fluid management device in Fig. 15 from another perspective;

Fig. 18 is a schematic front view of the fluid management device in Fig. 15;

Fig. 19 is a schematic cross-sectional structure diagram along C-C of Fig. 18;

Fig. 20 is a schematic perspective view of the three-dimensional structure of the first spacer in Fig. 15;

Fig. 21 is a perspective view of the stereoscopic structure of the second spacer sleeve in Fig. 15;

Fig. 22 is a schematic diagram of the front view of the second spacer in Fig. 21;

Fig. 23 is a schematic cross-sectional structure diagram along D-D in Fig. 22;

Fig. 24 is a schematic cross-sectional structure diagram of a spacer;

Fig. 25 is a schematic perspective view of the fourth embodiment of the fluid management device;

Fig. 26 is a schematic exploded view of the fluid management device in Fig. 25;

Fig. 27 is a schematic exploded view of the fluid management device in Fig. 25 from another perspective;

Fig. 28 is a schematic top view of the fluid management device in Fig. 25;

Fig. 29 is a schematic cross-sectional structure diagram along E-E of Fig. 28;

Fig. 30 is another schematic cross-sectional structural view of the fluid management device.

detailed description

The fluid management device of the technical solution of the present invention can have multiple implementations, at least one of which can be applied to vehicle thermal management systems, and at least one implementation can be applied to other thermal management systems such as household thermal management systems or commercial thermal management systems In the following, a fluid management device applied to a vehicle thermal management system is taken as an example to illustrate with reference to the accompanying drawings, and the fluid includes coolant.

Please refer to Figures 1-30, the present application provides a fluid management device, including a housing, a motor assembly, and an execution part, the execution part includes a first execution part and a second execution part, and the first execution part described here may be As for the spool, the second actuator may be an impeller. When the fluid management device is working, the spool can change the flow direction of the fluid, and the impeller can provide power for the fluid flow. The fluid management device has a first accommodating chamber, a second accommodating chamber and a third accommodating chamber, the first accommodating chamber, the second accommodating chamber and the third accommodating chamber are located in the casing, at least part of the motor assembly is located in the first accommodating chamber, the first execution The component is located in the second accommodating cavity, and the second executing component is located in the third accommodating cavity. The motor assembly includes a stator assembly, a first rotor, and a second rotor. After the fluid management device is energized, the stator assembly can rotate the first rotor, and the stator assembly can rotate the second rotor. The first rotor is in drive connection with the first actuator. The second rotor is in driving connection with the second actuator. The fluid management device has a first port and a second port, wherein the first port can be communicated with the second receiving chamber, and the second port can be communicated with the third receiving chamber, and the first port and the second port can be formed in the housing, or Can be located in a tube that is fixedly connected to the housing. In this embodiment, along the radial direction of the first accommodating chamber, the stator assembly is closer to the casing than the first rotor and the second rotor. Of course, there are other embodiments for the positional relationship between the first rotor, the second rotor and the stator, which will not be detailed here. describe. The stator assembly of the fluid management device can control the actions of the first rotor and the second rotor respectively, and the first rotor and the second rotor are connected to the first actuator and the second actuator respectively. The fluid management device also has a first port, a second The first port communicates with the second chamber, and the second port communicates with the third chamber. In this way, the fluid management device can control the work of the first actuator and the second actuator respectively. For example, when the first actuator and the second actuator are respectively impellers, the impellers can drive the fluid flow in the second chamber and the third chamber. . For another example, when the first actuator is an impeller and the second actuator is a valve core, the impeller can drive the fluid flow in the second housing chamber, and the valve core can change the fluid flow direction in the third housing chamber. The fluid management device is relatively compact. In addition, the first rotor and the second rotor of the fluid management device share a stator assembly, so a corresponding circuit board is required for control, which is beneficial to reduce components.

Please refer to FIGS. 1-7. In this embodiment, the fluid management device 10 includes a housing 11, a motor assembly and an actuator. The motor assembly includes a stator assembly 141, a first rotor 142 and a second rotor 143. After the fluid management device is energized The excitation magnetic field generated by the stator assembly 141 can rotate the first rotor 142, and the excitation magnetic field generated by the stator assembly 141 can rotate the second rotor 143. The rotors are connected to the first actuator and the second actuator respectively. The first actuator is the impeller 12, and the second actuator is the valve core 13. The valve core 13 is a spherical valve core. Of course, it can also be other types of valves. Core, such as a cylindrical spool. The fluid management device 10 has a first port 1001 and a second port 1002, and the fluid management device 10 also has a third port 1003, a fourth port 1004 and a fifth port 1005, wherein the fourth port 1004 communicates with the second housing chamber 1102, When the fluid management device 10 is working, one of the first port 1001 and the fourth port 1004 is an inlet of the fluid management device 10, and the other is an outlet of the fluid management device 10. In this embodiment, the first port 1001 is the first inlet of the fluid management device 10 , and the fourth port 1004 is the first outlet of the fluid management device 10 . The third port 1003 and the fifth port 1005 can communicate with the third chamber 1103, and the valve core 13 can make at least one of the third port 1003 and the second port 1002 communicate with the fifth port 1005. In this embodiment, the first The fifth port 1005 can be an inlet of the fluid management device 10 , and the third port 1003 and the second port 1002 are two outlets of the fluid management device 10 . Of course, the fluid management device 10 may also include other ports, which can communicate with the third receiving chamber 1103 , and fluid can flow into or out of the fluid management device 10 through these ports.

The casing 11 includes a first casing 111, a second casing 112 and a third casing 113. Along the axial direction of the first rotor 142, the second casing 112 is located on one side of the first casing 111, and the third casing 113 is located on the other side of the first housing 111, the second housing 112 and the third housing 113 are located on different sides of the first housing 111, the first housing 111 and the second housing 112 are sealed, and the first housing The body 111 and the third housing 113 are hermetically connected. In this embodiment, the wall forming the second housing chamber 1102 includes the inner wall of the second housing 112, the first port 1001 is formed in the second housing 112, and the wall forming the third housing chamber 1103 includes the inner wall of the second housing 112 . Specifically, the first housing 111 includes a first main body 1111 and a second main body 1112, the first main body 1111 and the second main body 1112 are integrally structured or fixedly connected or limitedly connected, wherein the first main body 1111 has a first accommodating cavity 1101 , the first housing cavity 1101 has an opening facing the impeller 12, and at least part of the motor assembly is located in the first housing cavity 1101. In the radial direction, the stator assembly 141 is located on the outer circumference of the second rotor 143 , and the first rotor 142 is located on the inner circumference of the second rotor 143 . The wall forming the third accommodating chamber 1103 includes a second main body 1112 , the valve core 13 is located in the third accommodating chamber 1103 , and the second port 1002 , the third port 1003 and the fifth port 1005 are located in the second main body 1112 . The axis of the first accommodation chamber 1101 is arranged parallel to the axis of the second accommodation chamber 1102. The parallel arrangement here includes that the axis of the first accommodation chamber 1101 is coaxial with the axis of the second accommodation chamber 1102, and also includes the axis of the first accommodation chamber 1101. The situation that the axis of the second accommodation cavity 1102 is not axial but parallel, or in other words, the parallel arrangement mentioned here includes the situation that the first accommodation cavity 1101 and the second accommodation cavity 1102 are distributed along the axis of the first accommodation cavity 1101, It also includes the case where the first accommodation chamber 1101 and the second accommodation chamber 1102 are distributed along a direction perpendicular to the axis of the first accommodation chamber 1101 .

Referring to FIG. 5 , the fluid management device 10 includes an isolation sleeve 15 , and the isolation sleeve 15 isolates the first rotor 142 , the second rotor 143 , and the stator assembly 141 . Specifically, at least part of the spacer 15 is located in the first housing chamber 1101, at least part of the first rotor 142 is located in the inner periphery of the spacer 15, the stator assembly 141 and the second rotor 143 are located in the outer periphery of the spacer 15, and the spacer 15 and the first The housing 111 is hermetically connected. Specifically, the isolation sleeve 15 includes an ear portion 151 and a main body portion 152. The main body portion 152 is located in the first accommodation cavity 1101. The main body portion 152 has a cavity, wherein the first rotor 142 is located in the cavity, and the cavity opens toward the impeller 12. The ear The part 151 extends from the opening of the cavity of the main body 152 along the radial direction of the first accommodating cavity 1101, and the ear part 151 is in sealing connection with the inner wall of the first main body 1111, so that the fluid in the second accommodating cavity 1102 cannot enter the stator assembly 141. The cavity prevents the fluid from damaging the stator assembly 141 , which is beneficial to improve the life of the fluid management device 10 .

In this embodiment, the third accommodating chamber 1103 and the second accommodating chamber 1102 are distributed along a direction perpendicular to the axis of the first rotor 142, specifically, a first direction is defined, the first direction is perpendicular to the axis of the first rotor 142, and the first The main body 1111 and the second main body 1112 are distributed along the first direction. In this way, the volume of the fluid management device 10 along the axial direction of the first rotor 142 can be reduced, which is beneficial to the miniaturization of the fluid management device 10 . The fluid management device 10 includes a first shaft 161, the first shaft 161 is fixedly connected or limitedly connected with the valve core 13, the second main body 1112 includes a first isolation part 1113, the first isolation part 1113 has a first receiving hole, and part of the first The shaft 161 is located in the first accommodation hole, the third accommodation chamber 1103 includes a first subchamber 1105 and a valve chamber 1106, the valve core 13 is located in the valve chamber 1106, along the axial direction of the first shaft 161, the first subchamber 1105 is located in the first isolation part 1113, the valve cavity 1106 is located on the opposite side of the first isolation part 1113, so that a part of the first shaft 161 is located in the first sub-chamber 1105, and the other part of the first shaft 161 is located in the valve cavity 1106 and is connected to the valve The core 13 is fixedly connected or limitedly connected. A seal is provided between the first shaft 161 and the wall of the first receiving hole to prevent the fluid in the valve cavity 1106 from entering the first sub-cavity 1105 .

Please refer to FIG. 2, FIG. 3 and FIG. 5, the fluid management device 10 further includes a transmission part 17, at least part of the transmission part 17 is located in the first sub-chamber 1105, the transmission part 17 includes a first tooth part 171 and a second tooth part 172, wherein , the first tooth part 171 is fixedly connected to the second rotor 143, the second tooth part 172 is fixedly connected to the first shaft 161, the first tooth part 171 is directly or indirectly connected to the second tooth part 172, when the fluid management device 10 is working , the first tooth portion 171 can drive the second tooth portion 172 to move and then the valve core 13 to move. In a more specific embodiment, the transmission part 17 also includes an intermediate tooth portion 173. Correspondingly, the housing 11 has a communication hole 1110, and the communication hole 1110 has a The communication hole 1110 communicates with the first accommodating chamber 1101 and the first sub-cavity 1105, and a part of the middle tooth part 173 is located in the communication hole 1110. 172 drive connections. The transmission part 17 is provided with an intermediate tooth portion 173 to adjust the rotational speed or torque of the valve core 13 and improve the adaptability of the fluid management device 10 .

Referring to FIG. 5 , the second housing 112 includes a first subsection 1121 and a second subsection 1122 , wherein the wall forming the second accommodating chamber 1102 also includes the inner wall of the first subsection 1121 , and the first port 1001 is located at the first The sub-section 1121 , the first sub-section 1121 is sealingly connected with the first main body 1111 , and the walls forming the first sub-cavity 1105 include the inner wall of the second sub-section 1122 . The second sub-part 1122 is sealed and connected to the second main body 1112. In this embodiment, the first sub-part 1121 and the second sub-part 1122 are integrally structured, and the second housing 112 includes a first sealing section 1127, along the first direction, The first sealing section 1127 is located between the first subsection 1121 and the second subsection 1122 , the second main body 1112 or the first main body 1111 includes a second sealing section 1108 , along the axial direction of the first rotor 142 , the second sealing section 1108 Closer to the second casing 112 than the communication hole 1110 , the first sealing section 1127 is in sealing connection with the second sealing section 1108 . In this embodiment, the second housing 112 and the first housing 111 are fixed by bolts, which will not be described in detail. In another embodiment, the first sub-section 1121 and the second sub-section 1122 are provided separately, wherein the first sub-section 1121 is sealed and connected to the first end of the first body 1111, and the second sub-section 1122 is connected to the second body The first end of 1112 is sealingly connected. In this embodiment, the sealing method includes welding sealing, adhesive sealing or thread sealing, and a sealing ring may also be provided to enhance the sealing.

5-7, the first main body 1111 includes a second isolation portion 1114, and the housing 11 has a circuit board accommodating chamber 1104. Specifically, the walls forming the circuit board accommodating chamber 1104 include the walls of the first main body 1111, and the second One side wall of the isolation part 1114 is the bottom wall of the first receiving cavity 1101, the other side wall of the second isolation part 1114 is the bottom wall of the circuit board receiving cavity 1104, and the second isolation part 1114 is relatively isolated from the first receiving cavity 1101 and The circuit board accommodating chamber 1104, the circuit board is located in the circuit board accommodating chamber 1104, along the axial direction of the first rotor 142, the circuit board is located on one side of the second isolation part 1114, and the stator assembly 141 is located on the other side of the second isolation part 1114, The circuit board is electrically or signally connected to the stator assembly 141 , and the circuit board provides control signals for the stator assembly 141 . The housing 11 includes a third housing 113, the third housing 113 includes a third sub-section 1131 and a fourth sub-section 1132, the wall forming the circuit board accommodating chamber 1104 also includes the inner wall of the third sub-section 1131, forming a valve chamber 1106 The wall of the wall includes the inner wall of the fourth sub-section 1132, the third sub-section 1131 and the fourth sub-section 1132 are integrally structured or separately arranged, the third sub-section 1131 is sealingly connected with the second end of the first main body 1111, and the fourth sub-section The portion 1132 is sealingly connected to the second end of the second body 1112 , and in this embodiment, the third housing 113 and the first housing 111 are fixed by bolts.

The first port 1001 and the fourth port 1004 are formed in the second housing 112 , and the third port 1003 , the second port 1002 and the fifth port 1005 are formed in the second body 1112 . The fluid management device 10 has a first channel. In a specific embodiment, the first channel is located in the communication tube, and the communication tube is used to communicate the fourth port 1004 with the second port 1002. In this way, the second housing cavity 1102 for containing the impeller 12 and the housing The third housing chamber 1103 of the valve core 13 communicates. When the fluid management device 10 is working, the fluid enters the second housing chamber 1102 from the first port 1001, and the fluid is driven by the impeller 12 from the second housing chamber through the first channel in the communication pipe. Entering the third accommodating chamber 1103 or the valve chamber 1106, the valve core 13 rotates to make the fluid flow out of the fluid management device 10 through the third port 1003 and/or the fifth port 1005, which makes the fluid management device 10 more integrated.

In another specific embodiment, the housing 11 has a first channel (not shown), at this time, the fluid management device 10 may not have the fourth port 1004 and the fifth port 1005, and the first channel forms the second accommodating chamber 1102 The wall of the impeller 12 is located in the second accommodating chamber 1102, the first channel has an opening in the wall forming the third accommodating chamber 1103 or the wall of the valve chamber 1106 has an opening, the valve core 13 is located in the third accommodating chamber 1103, the first The channel communicates with the second chamber 1102 and the third chamber 1103, and the valve core 13 can make at least one of the third port 1003 and the second port 1002 communicate with the first channel. In this embodiment, the first port 1001 is a fluid One inlet of the management device 10 , the fluid can enter the third accommodating chamber 1103 from the second accommodating chamber 1102 , and the fluid can flow out through the second port 1002 and/or through the third port 1003 under the action of the valve core 13 . Compared with the above-mentioned embodiments, the first channel is built into the casing 11, which can reduce the volume of the fluid management device 10, reduce leakage, and also reduce installation steps.

Please refer to FIGS. 8-14. In this embodiment, the first actuator is the impeller 22, and the second actuator is the valve core 23. Specifically, the fluid management device 20 includes a housing 21, a motor assembly 24, an impeller 22 and a valve. Core 23, motor assembly 24 includes stator assembly 241, first rotor 242, second rotor 243, stator assembly 241 can make first rotor 242 rotate, stator assembly 241 can make second rotor 243 rotate, first rotor 242 and impeller 22 Transmission connection, the second rotor 243 is in transmission connection with the valve core 23, the fluid management device 20 has a first accommodation chamber 2101, a second accommodation chamber 2102 and a third accommodation chamber 2103, the first accommodation chamber 2101, the second accommodation chamber 2102 and the third accommodation chamber The three housing chambers 2103 are located in the housing 21, at least part of the motor assembly 24 is located in the first housing chamber 2101, the impeller 22 is located in the second housing chamber 2102, and the valve core 23 is located in the third housing chamber 2103; along the axial direction of the first rotor 242, The impeller 22 is located on one side of the motor assembly 24, the valve core 23 is located on the other side of the motor assembly 24, and the impeller 22 and the valve core 23 are located on different sides of the motor assembly 24; in this embodiment, the fluid management device 20 has a first port 2001 , the second port 2002, the third port 2003, the third port 2003, the fourth port 2004 and the fifth port 2005, wherein the first port 2001 and the fourth port 2004 communicate with the second chamber 2102 respectively, and the second port 2002 , the third port 2003 and the fifth port 2005 can communicate with the third receiving chamber 2103 , and the valve core 23 can communicate at least one of the third port 2003 and the second port 2002 with the fifth port 2005 . The stator assembly 241 of the fluid management device 20 can respectively move the first rotor 242 and the second rotor 243, and the first rotor 242 and the second rotor 243 are connected to the impeller 22 and the valve core 23 respectively, and move along the axial direction of the first rotor 242. , the impeller 22 and the valve core 23 are located on different sides of the stator assembly 241 , the layout of the impeller 22 and the valve core 23 of the fluid management device 20 is reasonable, and the structure is compact, which is beneficial to the miniaturization of the fluid management device 20 .

The housing 21 includes a first housing 211, a second housing 212 and a third housing 213, the second housing 212 is in sealing connection with the first end of the first housing 211, and the wall forming the second housing cavity 2102 includes The inner wall of the second housing 212 , the third housing 213 is sealingly connected with the second end of the first housing 211 , and the wall forming the third receiving cavity 2103 includes the inner wall of the third housing 213 . In other words, along the axial direction of the first rotor 242, at least part of the second housing 212 is located on one side of the first housing 211, at least part of the third housing 213 is located on the other side of the first housing 211, and the second housing The body 212 and the third case 213 are located on different sides of the first case 211 . In this embodiment, the first port 2001 and the fourth port 2004 are located in the second housing 212, the second port 2002, the third port 2003 and the fifth port 2005 are located in the first housing 211; the first housing 211 and the second The casing 212 is fixedly connected by bolts, and the first casing 211 and the third casing 213 are fixedly connected by bolts.

In this embodiment, the first housing 211 includes a first isolation part 2113 , a first body 2111 and a second body 2112 . Along the axial direction of the first rotor 242 , the first body 2111 and the second body 2112 axis distribution. In a specific embodiment, the first isolation part 2113, the first main body 2111 and the second main body 2112 are integrally structured, and such a first housing 211 has the advantages of easy installation and reduced leakage. In another embodiment, the first isolation part 2113, the first main body 2111 and the second main body 2112 have a separate structure, wherein the first isolation part 2113 is in sealing connection with one end of the first main body 2111 that is far away from the impeller 22, and the second One end of the main body 2112 relatively close to the impeller 22 is sealingly connected with the first isolation part 2113 , of course, the second main body 2112 can also be sealingly connected with one end of the first main body 2111 , such a first housing 211 has the advantage of simple processing. In addition, the first isolation part 2113 can also be integrated with one of the first body 2111 and the second body 2112, the first body 2111 and the second body 2112 are separate structures, and the first isolation part 2113 is integrated with the other Sealed connection.

Along the axial direction of the first rotor 242, the first accommodation chamber 2101 is located on one side of the first isolation part 2113, the third accommodation chamber 2103 is located on the other side of the first isolation part 2113, and the first accommodation chamber 2101 and the third accommodation chamber 2103 are located on different sides of the first isolation portion 2113, wherein the third accommodating chamber 2103 includes a valve chamber. Specifically, the first accommodating chamber 2101 has an opening on the first body 2111 facing away from the first partition 2113, or in other words, the first accommodating chamber 2101 has an opening on the first main body 2111 facing the impeller 22, forming the first accommodating chamber 2101 The walls include the first side wall of the first isolation part 2113 and the inner wall of the first main body 2111, wherein the first side wall of the first isolation part 2113 is the bottom wall of the first accommodation cavity 2101, and the third accommodation cavity 2103 is at the second The second main body 2112 has an opening facing away from the first isolation part 2113, or in other words, the third housing chamber 2103 has an opening facing the valve core 23 in the second main body 2112, and the wall forming the third housing chamber 2103 includes the opening of the first isolation part 2113. The second side wall and the inner wall of the second main body 2112 , wherein the second side wall of the first isolation portion 2113 is the bottom wall of the third receiving chamber 2103 .

Please refer to FIG. 13 , the fluid management device 20 includes a first shaft 261 , the first isolation portion 2113 has a first receiving hole, the first shaft 261 is fixedly connected or limitedly connected to the second rotor 243 , and the first shaft 261 is connected to the valve core 23 Fixed connection or limit connection or transmission connection, specifically, part of the first shaft 261 is located in the first receiving hole of the first isolation part 2113, the first shaft 261 is sealed with the wall of the first receiving hole, and one of the first shafts 261 The end is integrated with the second rotor 243 or is fixedly connected or limitedly connected, and the other end of the first shaft 261 is located in the third receiving chamber 2103, and is fixedly connected or limitedly connected with the valve core 23 located in the third receiving chamber 2103 or transmission connection. In a specific embodiment, the valve core 23 has an assembly part, and the assembly part is fixedly connected or limitedly connected with the first shaft 261. At this time, the first shaft 261 is directly connected with the valve core 23, so that the rotation of the valve core 23 is consistent with the first shaft 261. The two rotors 243 are relatively synchronous, and the rotation adjustment of the spool 23 is relatively simple. In yet another specific embodiment, please refer to FIG. 14 , the third accommodating cavity 2103 includes a first sub-cavity 2105 and a valve cavity 2106 , wherein the wall forming the first sub-cavity 2105 includes the second side wall of the second isolation portion 2114 Specifically, the first housing 211 includes a second isolation portion 2114, the second isolation portion 2114 has a housing hole for accommodating the second shaft 262 and the second shaft 262 is sealed with the wall of the housing hole of the second isolation portion 2114, Along the axial direction of the second shaft 262 , the first sub-cavity 2105 is located on one side of the second isolation portion 2114 , and the valve cavity 2106 is located on the opposite side of the second isolation portion 2114 . At least part of the transmission part 27 is located in the first subcavity 2105, the transmission part 27 includes an intermediate tooth part 273, a first tooth part 271 and a second tooth part 272, the first tooth part 271 is fixedly connected or limitedly connected to the first shaft 261, The second gear part 272 is fixedly connected or limitedly connected with the second shaft 262, the intermediate gear part 273 is in transmission connection with the first gear part 271, the intermediate gear part 273 is in transmission connection with the second gear part 272, and the transmission part 27 is provided with an intermediate gear part. 273 can adjust the rotational speed or torque of the spool 23 to improve the adaptability of the fluid management device 20 . In other embodiments, the fluid management device 20 further includes a transmission part 27 and a second shaft 262, the second shaft 262 is fixedly connected or limitedly connected to the assembly part of the valve core 23, the transmission part 27 is located in the third accommodating chamber 2103, and the transmission part 27 includes a first tooth portion 271 and a second tooth portion 272, wherein the first tooth portion 271 is fixedly connected or limitedly connected with the first shaft 261, and the second tooth portion 272 is fixedly connected or limitedly connected with the second shaft 262, The first tooth portion 271 meshes with the second tooth portion 272. At this time, the first tooth portion 271 is directly connected to the second tooth portion 272. That is, compared with the embodiment in FIG. 14 , the main difference is that the middle tooth portion 273 is not included. .

Please refer to FIG. 13 , the fluid management device 20 includes an isolation sleeve 25 , which isolates the first rotor 242 from the second rotor 243 and the stator assembly 241 , or in other words, the isolation sleeve 25 prevents the cavity where the first rotor 242 is located from the cavity where the stator is located. . Specifically, at least part of the spacer 25 is located in the first housing cavity 2101, at least part of the first rotor 242 is located in the inner periphery of the spacer 25, the stator assembly 241 and the second rotor 243 are located in the outer periphery of the spacer 25, and the spacer 25 and the first The main body 2111 is hermetically connected. More specifically, the isolation sleeve 25 includes an ear portion 251 and a main body portion 252. The main body portion 252 is located in the first accommodation cavity 2101. The main body portion 252 has a cavity, wherein the first rotor 242 is located in the cavity, and the cavity opens toward the impeller 22. , the ear portion 251 extends from the cavity opening of the main body portion 252 along the radial direction of the first accommodation chamber 2101, and the ear portion 251 is in sealing connection with the inner wall of the first main body 2111, so that the fluid in the second accommodation chamber 2102 cannot enter the stator assembly The cavity where the fluid management device 241 is located prevents the fluid from damaging the stator assembly 241, which is beneficial to improving the service life of the fluid management device 20.

Referring to FIG. 11 , the fluid management device 20 may further include a circuit board 28 , and the circuit board 28 is electrically and/or signally connected to the stator assembly 241 . The housing 21 includes a fourth housing 214, the housing has a circuit board accommodating cavity 2104, the walls forming the circuit board accommodating cavity 2104 include the side walls of the first housing 211 and the inner wall of the fourth housing 214, the first housing 211 The circuit board is fixedly connected or limitedly connected with the fourth housing 214, and the circuit board is located in the circuit board accommodating chamber 2104, so that the structure of the fluid management device 20 is relatively compact, which is conducive to miniaturization. Of course, the fluid management device 20 may also not include a circuit board.

In this embodiment, the fluid management device 20 may also include a communication part having a first passage, and the communication part is used to communicate with the third port 2003 and the fourth port 2004, so that the second accommodation chamber 2102 for accommodating the impeller 22 and the accommodating The third housing chamber 2103 of the spool 23 communicates. When the fluid management device 20 is working, the fluid enters the second housing chamber 2102 from the first port 2001 , and the fluid is driven by the impeller 22 from the second housing chamber 2102 through the first passage into the second housing chamber. There are three accommodating chambers 2103 , the valve core 23 rotates to make the fluid flow out of the fluid management device 20 through the third port 2003 and/or the fifth port 2005 , which makes the fluid management device 20 more integrated.

Please refer to FIGS. 15-24 , in this embodiment, the first actuator is the first impeller 32 , and the second actuator is the second impeller 33 . Specifically, the fluid management device 30 includes a housing 31, a motor assembly 34, a first impeller 32, and a second impeller 33. The fluid management device 30 has a first accommodating chamber 3101, a second accommodating chamber 3102, and a third accommodating chamber 3103. A housing chamber 3101, a second housing chamber 3102 and a third housing chamber 3103 are located in the casing 31, at least part of the motor assembly 34 is located in the first housing chamber 3101, the first impeller 32 is located in the second housing chamber 3102, and the second impeller 33 is located in the The third accommodating chamber 3103; along the axial direction of the first rotor 342, the first impeller 32 is located on one side of the stator assembly 341, and the second impeller 33 is located on the opposite side of the stator assembly 341, or in other words, the second accommodating chamber 3102 is located One side of the first accommodation chamber 3101, the third accommodation chamber 3103 is located on the other side of the first accommodation chamber 3101; the motor assembly 34 includes a stator assembly 341, a first rotor 342, a second rotor 343, along the In the radial direction, at least part of the first rotor 342 and at least part of the second rotor 343 are located on the inner periphery of the stator assembly 341 . When the fluid management device 30 is working, the stator assembly 341 can rotate the first rotor 342, the stator assembly 341 can rotate the second rotor 343, the first rotor 342 is connected with the first impeller 32, and then the first impeller 32 can rotate the second rotor 343. The fluid in the receiving chamber 3102 flows, the second rotor 343 is in transmission connection with the second impeller 33 , and the first impeller 32 can make the fluid in the third receiving chamber 3103 flow. The fluid management device 30 has a first port 3001, a second port 3002, a third port 3003 and a fourth port 3004, wherein the first port 3001 and the fourth port 3004 communicate with the second housing chamber 3102, the second port 3002, the fourth port The third port 3003 communicates with the third chamber 3103. When the fluid management device 30 is working, one of the first port 3001 and the fourth port 3004 is an inlet of the fluid management device 30, and the other is an inlet of the fluid management device 30. Export. One of the second port 3002 and the third port 3003 is another inlet of the fluid management device 30 , and the other is another outlet of the fluid management device 30 . The stator assembly 341 of the fluid management device 30 can respectively move the first rotor 342 and the second rotor 343, and the first rotor 342 and the second rotor 343 are connected to the first impeller 32 and the second impeller 33 respectively, or the fluid management device 30 can control the action of the first impeller 32 and the second impeller 33 respectively, realizing the integration of the two pumps, which has the advantage of high integration; in addition, along the axial direction of the first rotor 342, the first impeller 32 and the second impeller 33 are located at On different sides of the stator assembly 341 , such a fluid management device 30 has a reasonable layout and a compact structure, which is beneficial to the miniaturization of the fluid management device 30 .

15-17, the housing 31 includes a first housing 311, a second housing 312 and a third housing 313. Along the axial direction of the first rotor 342, at least part of the second housing 312 is located in the first housing. One side of the body 311, at least part of the third housing 313 is located on the other side of the first housing 311, the second housing 312 is connected to the first housing 311 through a fixed connection or a position-limiting connection, and the third housing 313 is connected to the first housing 311. A housing 311 is fixedly connected or limitedly connected, and the connection method includes bonding, welding, bolt connection or screw connection. In this embodiment, the connection method is bolt connection. The walls forming the first housing chamber 3101 include the inner wall of the first housing 311. The first housing chamber 3101 has an opening facing the second housing 312 in the first housing 311. The first housing chamber 3101 has an opening in the first housing 311. Facing the mouth of the third housing 313 , at least part of the motor assembly 34 is located in the first housing chamber 3101 , the walls forming the second housing chamber 3102 include the second housing 312 , and the walls forming the third housing chamber 3103 include the third housing 313 , the first port 3001 and the second port 3002 are formed in the second housing 312, the third port 3003 and the fourth port 3004 are formed in the third housing 313, of course the first port 3001, the second port 3002, the third port 3003 And the fourth port 3004 may also be located in a tube that is fixedly connected or limitedly connected with the housing 31 , which will not be described in detail.

Please refer to Fig. 24, please refer to Fig. 19 for the cooperation between the isolation sleeve 35 and the housing. Installed, the spacer sleeve 35 is used to make the cavity where the stator assembly 341 is located not communicate with the cavity where the first rotor 342 and the second rotor 343 are located. Specifically, the isolation sleeve 35 includes a first sub-section 3501, a second sub-section 3502 and a third sub-section 3503, the first sub-section 3501, the second sub-section 3502 and the third sub-section 3503 are integrally structured, wherein the second The sub-section 3502 is hollow cylindrical, the first sub-section 3501 extends from one end of the second sub-section 3502 along the radial direction of the first accommodating chamber 3101, and the third sub-section 3503 extends from the other end of the second sub-section 3502 along the Extending along the radial direction of the first housing cavity 3101, the second sub-section 3502 extends from the first sub-section 3501 to the third sub-section 3503 along the axial direction of the first housing cavity 3101, at least part of the second sub-section 3502 is located in the first housing The cavity 3101 , the stator assembly 341 is located on the outer circumference of the second sub-section 3502 , and the first rotor 342 and the second rotor 343 are located on the inner circumference of the second sub-section 3502 . In another embodiment, the isolation sleeve 35 includes a first sub-piece 3510 and a second sub-piece 3520, and the first sub-piece 3510 and the second sub-piece 3520 are split structures, wherein the first sub-piece 3510 includes a first sub-part 3501 and part of the second sub-part 3502, the second sub-part 3520 includes the third sub-part 3503 and another part of the second sub-part 3502, part of the second sub-part 3502 is in sealing connection with another part of the second sub-part 3502, and the sealing method includes threads Connect or glue or set a sealing ring between the two to enhance the seal. When the spacer sleeve 35 is installed, the first sub-component or the second sub-component 3520 is installed first, and then the second sub-component 3520 and the first sub-component 3510 are hermetically connected. Along the axial direction of the first rotor 342, the first sub-section 3501 is located between the first housing 311 and the second housing 312, and the first housing 311 and the second housing 312 are fixed by bolts, and then the first sub-section is compressed. Part 3501, so as to realize the sealing connection between the first sub-part 3501 and the first housing 311 and the second housing 312. The third sub-section 3503 is located between the first housing 311 and the third housing 313, the first housing 311 and the third housing 313 are fixed by bolts, and then the second sub-section 3502 is compressed to realize the third sub-section 3503 is in sealing connection with the first housing 311 and the third housing 313 .

In another embodiment, please refer to FIGS. 19-23 , the fluid management device 30 includes two isolation sleeves, that is, a first isolation sleeve 351 and a second isolation sleeve 352, wherein the first isolation sleeve 351 includes a first subsection 3501 and the first cylinder part 3511, the first cylinder part 3511 has a bottom at one end far away from the first sub-section 3501, the opposite end is open and the opening faces the first impeller 32, the first rotor 342 is located inside the first cylinder part 3511 Circumferentially, the stator assembly 341 and the second spacer sleeve 352 are located on the outer periphery of the first cylindrical portion 3511 , and the first sub-portion 3501 is in sealing connection with the first casing 311 and the second casing 312 . The second spacer 352 includes a second sub-section 3502, a second tube 3521 and a third tube 3522. The second sub-section 3502, the second tube 3521 and the third tube 3522 are integrally structured. The second tube 3521 There is a mouth near the end of the first sub-section 3501, the second cylindrical portion 3521 has a bottom, the first cylindrical portion 3511 is located at the inner periphery of the second cylindrical portion 3521, and the second cylindrical portion 3521 is located at the inner periphery of the third cylindrical portion 3522 , the opening of the third cylindrical portion 3522 faces the second impeller 33, the opening of the second cylindrical portion 3521 is opposite to the opening of the third cylindrical portion 3522, and along the radial direction of the first housing chamber 3101, at least part of the second rotor 343 is located in the second Between the cylinder part 3521 and the third cylinder part 3522 , the second subsection 3502 is in sealing connection with the first housing 311 and the third housing 313 . The fluid management device 30 includes a first isolation sleeve 351 and a second isolation sleeve 352, which facilitate the installation of the isolation sleeve 35 and can also enhance the sealing performance.

Please refer to FIG. 16 , in this embodiment, the circuit board 38 of the fluid management device 30 is electrically or signally connected to the stator assembly 341 . The housing 31 includes a fourth housing 314, the housing has a circuit board accommodating cavity 3104, the circuit board is located in the circuit board accommodating cavity 3104, and the walls forming the circuit board accommodating cavity 3104 include the side walls of the first housing 311 and the fourth housing 314, the first housing 311 is fixedly connected or limitedly connected with the third housing 313, so that the structure of the fluid management device 30 is relatively compact, which is conducive to miniaturization. Of course, the fluid management device 30 may also not include a circuit board, which will not be described in detail.

Please refer to FIGS. 25-29 , in this embodiment, the first actuator is the second valve core 43 , and the second actuator is the first valve core 42 , specifically, the fluid management device 40 includes a housing 41 and a motor assembly 44 , the first spool 42 and the second spool 43, the motor assembly 44 includes a stator assembly 441, a first rotor 442 and a second rotor 443, the stator assembly 441 can make the first rotor 442 rotate, and the stator assembly 441 can make the second rotor 443 rotation, the first rotor 442 is in transmission connection with the second spool 43, the second rotor 443 is in transmission connection with the first spool 42, and the fluid management device 40 has a first accommodating chamber 4101, a second accommodating chamber 4102 and a third accommodating chamber 4103, the first housing chamber 4101, the second housing chamber 4102 and the third housing chamber 4103 are located in the casing, at least part of the motor assembly 44 is located in the first housing chamber 4101, the first valve core 42 is located in the third housing chamber 4103, the second valve The core 43 is located in the second housing chamber 4102; along the axial direction of the first rotor 442, the first valve core 42 is located on one side of the stator assembly 441, and the second valve core 43 is located on the opposite side of the stator assembly 441; the fluid management device 40 Including the first port 4001, the second port 4002, the third port 4003, the fourth port 4004, the fifth port 4005 and the sixth port 4006, the first port 4001, the fourth port 4004 and the sixth port 4006 can be accommodated with the second port The chamber 4102 communicates, the second port 4002, the third port 4003, and the fifth port 4005 can communicate with the third receiving chamber 4103, and the second valve core 43 can make at least one of the fourth port 4004 and the sixth port 4006 communicate with the first port One port 4001 is connected, and the first valve core 42 can make at least one of the third port 4003 and the fifth port 4005 communicate with the second port 4002 . The stator assembly 441 of the fluid management device 40 can respectively move the first rotor 442 and the second rotor 443, and the second rotor 443 and the first rotor 442 are connected to the first spool 42 and the second spool 43 respectively. The fluid management device The stator assembly 441 of 40 can control the action of the first valve core 42 and the second valve core 43 respectively, which has the advantage of high integration; along the axial direction of the first rotor 442, the first valve core 42 and the second valve core 43 are located in the stator On different sides of the component 441, the layout of the first valve core 42 and the second valve core 43 of such a fluid management device 40 is reasonable, which facilitates the assembly of the first valve core 42 and the second valve core 43, and has a compact structure, which is beneficial to the fluid management device. 40 miniaturization.

Please refer to FIG. 24-FIG. 26 and FIG. 29, the housing 41 includes a first housing 411, the wall forming the first accommodating chamber 4101 includes a first housing 411, and the housing 41 includes a first isolation part 4113 and a second isolation part 4114, the first isolation part 4113 relatively isolates the first accommodation chamber 4101 and the third accommodation chamber 4103, the second isolation part 4114 relatively isolates the first accommodation chamber 4101 and the second accommodation chamber 4102, along the axial direction of the first rotor 442, the second The three housing chambers 4103 are located on one side of the first isolation part 4113, the first housing chamber 4101 is located on the opposite side of the first isolation part 4113, the first housing chamber 4101 is located on one side of the second isolation part 4114, and the second housing chamber 4102 is located on the opposite side of the second isolation portion 4114 , or in other words, the first accommodating chamber 4101 is located between the first isolation portion 4113 and the second isolation portion 4114 . The first housing 411 includes a first main body 4111, a second main body 4112 and a third main body 4117. Along the axial direction of the first rotor 442, the first main body 4111, the second main body 4112 and the third main body 4117 Axial distribution, wherein, the second main body 4112 is located on one side of the first main body 4111, the third main body 4117 is located on the other side of the first main body 4111, at least part of the first accommodation chamber 4101 is located on the first main body 4111, at least part of the third main body 4111 The receiving cavity 4103 is located in the second main body 4112, at least part of the second receiving cavity 4102 is located in the third main body 4117, and the walls forming the first receiving cavity 4101 include the first side wall of the first isolation part 4113 and the second side wall of the second isolation part 4114. The side wall, the second accommodating chamber 4102 has an opening facing away from the second isolation part 4114, the wall forming the second accommodating cavity 4102 includes the second side wall of the second isolation part 4114, the first The third accommodation cavity 4103 has an opening facing away from the first isolation portion 4113 , and the wall forming the third accommodation cavity 4103 includes the second side wall of the first isolation portion 4113 . In a specific embodiment, the first isolation part 4113, the first main body 4111 and the second main body 4112 are integrally structured, the third main body 4117 is integrally structured or sealedly connected with the second isolation part 4114, and the second isolation part 4114 or the third main body 4117 is sealingly connected with the first body 4111. The first main body 4111 has a first receiving cavity 4101, the second main body 4112 has a second receiving cavity 4102, and the third main body 4117 has a third receiving cavity 4103. The side wall and the second side wall of the second isolation part 4114, the second accommodating chamber 4102 has an opening facing away from the first isolation part 4113, the wall forming the second accommodating cavity 4102 includes the second side wall of the first isolation part 4113, The third receiving cavity 4103 has an opening facing away from the second isolation part 4114 , and the wall forming the third receiving cavity 4103 includes the second side wall of the second isolation part 4114 . The first isolation part 4113, the first body 4111 and the second body 4112 are integrally structured, which is convenient for assembly and can also reduce leakage.

The housing 41 also includes a second housing 412, a third housing 413 and a fourth housing 414. The second housing 412 is sealed to one end of the third body 4117, and the wall forming the second housing chamber 4102 includes a first The inner wall of the second housing 412 , the third housing 413 is sealingly connected with one end of the second main body 4112 , and the wall forming the third accommodating chamber 4103 includes the inner wall of the third housing 413 . The housing 41 has a circuit board accommodating cavity 4104, the walls forming the circuit board accommodating cavity 4104 include the side walls of the first housing 411 and the fourth housing 414, the first housing 411 is sealed with the fourth housing 414; fluid management The device 40 includes a circuit board 48 located in the circuit board receiving chamber 4104 , and the circuit board 48 is electrically or signally connected to the stator assembly 441 . The first port 4001 , the fourth port 4004 and the sixth port 4006 are formed on the third body 4117 , and the second port 4002 , the third port 4003 and the fifth port 4005 can be formed on the second body 4112 .

Referring to FIG. 29 , the fluid management device 40 includes a first shaft 461 and a second shaft 462 . In this embodiment, one end of the first shaft 461 is fixedly connected or limitedly connected to the first fitting part of the first valve core 42, and the walls forming the third accommodation chamber 4103 include the walls of the first isolation part 4113 and the third In the inner wall of the housing 413, the first isolation part 4113 has a first accommodation hole, and a part of the first shaft 461 is located in the first accommodation hole of the first isolation part 4113, and the first shaft 461 is sealed with the wall of the first accommodation hole. The other end of the shaft 461 is integrated with the second rotor 443 or is fixedly connected or limitedly connected, so that when the second rotor 443 rotates, the second rotor 443 can drive the first valve core 42 to move. One end of the second shaft 462 is fixedly connected or limitedly connected to the second assembly part of the second valve core 43 , and the walls forming the second accommodation chamber 4102 include the walls of the second isolation part 4114 and the inner wall of the second casing 412 , the second isolation part 4114 has a second accommodation hole, part of the second shaft 462 is located in the second accommodation hole of the second isolation part 4114, the second shaft 462 is sealed with the wall of the second accommodation hole, and the other part of the second shaft 462 The end part is fixedly connected or limitedly connected with the first rotor 442 or has an integrated structure, so that when the first rotor 442 rotates, the first rotor 442 can drive the second valve core 43 to move.

The fluid management device 40 may further include a first transmission part 47, a first valve rod 463 and a third isolation part 4115. In this embodiment, the first valve rod 463 is fixedly connected or limited to the first assembly part of the first valve core 42. position connection, the third housing chamber 4103 includes a first subchamber 4105 and a first valve chamber 4106, along the axial direction of the first valve stem 463, the first subchamber 4105 is located on one side of the third isolation part 4115, the first valve chamber 4106 is located on the opposite side of the third isolation portion 4115; at least part of the first transmission part 47 is located in the first sub-chamber 4105, the first transmission part 47 includes a first tooth part 471 and a second tooth part 472, the first tooth part 471 It is fixedly connected or limitedly connected with the first shaft 461, the second tooth part 472 is fixedly connected or limitedly connected with the first valve stem 463, the first tooth part 471 is directly or indirectly connected to the second tooth part 472, and the first The transmission part 47 is convenient for adjusting the rotational speed and torque of the spool, and the transmission part may further include an intermediate gear, which will not be described in detail.

Similarly, the fluid management device 40 also includes a second transmission part 49, a second valve rod 464 and a fourth isolation part 4116. In this embodiment, the second valve rod 464 is fixedly connected or limitedly connected to the second assembly part. The second accommodation chamber 4102 includes a second subchamber 4106 and a second valve chamber 4107. Along the axial direction of the second valve stem 464, the second subchamber 4106 is located on one side of the fourth isolation part 4116, and the second valve chamber 4107 is located in the fourth The opposite side of the isolation part 4116; the fluid management device 40 includes a second transmission part 49, at least part of the second transmission part 49 is located in the second sub-cavity 4106, and the second transmission part 49 includes a third tooth part 491 and a fourth tooth part 492, the third tooth part 491 is fixedly connected or limitedly connected with the second shaft 462, the fourth tooth part 492 is fixedly connected or limitedly connected with the second valve stem 464, the third tooth part 491 is directly or For indirect transmission connection, the second transmission part 49 is provided to facilitate the adjustment of the rotational speed and torque of the spool, and the transmission part may further include another intermediate gear, which will not be described in detail.

In other embodiments, the first isolation part 4113, the first main body 4111 and the second main body 4112 have a separate structure, the first isolation part 4113 is in sealing connection with the end of the first main body 4111 that is relatively far away from the first valve core 42, and the second main body 4112 is in sealing connection with the first isolation part 4113 or is in sealing connection with the end of the first main body 4111 relatively away from the second valve core 43; the second isolation part 4114 is in contact with at least one of the first main body 4111 and the third main body 4117 One-piece structure, which can reduce installation steps and reduce leakage.

In addition, the first main body 4111 and the second main body 4112 have a separate structure, the first isolation part 4113 is integrally structured with one of the first main body 4111 and the first main body 4111, and the first isolation part 4113 is in sealing connection with the other one, The second isolation part 4114 is sealed and connected with the first body 4111 and the third body 4117 respectively, which can reduce installation steps and reduce leakage.

It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the specification has described the present invention in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art It should be understood that those skilled in the art can still make modifications or equivalent replacements to the present invention, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention shall be covered by the claims of the present invention.

Claims (9)

1. A fluid management device comprising a housing, a motor assembly, an impeller and a valve core, the motor assembly comprising a stator assembly, a first rotor, and a second rotor, the stator assembly is capable of rotating the first rotor, the The stator assembly can rotate the second rotor, the first rotor is in drive connection with the impeller, the second rotor is in drive connection with the valve core, and the fluid management device has a first accommodating chamber, a second accommodating cavity and a third accommodating cavity, the first accommodating cavity, the second accommodating cavity and the third accommodating cavity are located in the housing, at least part of the motor assembly is located in the first accommodating cavity, the The impeller is located in the second accommodating chamber, and the valve core is located in the third accommodating chamber; The fluid management device has a first port, a second port, a third port, a third port, a fourth port, and a fifth port, and the first port and the fourth port communicate with the second accommodating chamber respectively , the second port, the third port, and the fifth port can communicate with the third accommodation chamber, and the valve core can make at least one of the third port and the second port communicate with the fifth port. 2. The fluid management device according to claim 1, wherein, along the axial direction of the first rotor, the impeller is located on one side of the motor assembly, and the valve core is located on the other side of the motor assembly side, the impeller and the spool are located on different sides of the motor assembly; The casing includes a first casing, the first casing includes a first isolation part, and the first accommodating chamber has an opening facing the impeller in the first casing, along the side of the first rotor In the axial direction, the first accommodating cavity is located on one side of the first isolation part, the third accommodating cavity is located on the other side of the first isolation part, and the first accommodating cavity and the third accommodating cavity the cavities are located on different sides of the first partition; The fluid management device includes a first shaft, the first shaft is fixedly connected or limitedly connected or transmission connected to the second rotor, and the first shaft is fixedly connected or limitedly connected to the valve core. 3. The fluid management device according to claim 2, wherein the valve core includes an assembly portion, and the first isolation portion has a first receiving hole; The assembly part is fixedly connected or limitedly connected with the first shaft, one end of the first shaft is fixedly connected or limitedly connected with the second rotor, and the wall forming the third accommodation chamber includes the the wall of the first isolation part, part of the first shaft is located in the first receiving hole of the first isolation part; Alternatively, the fluid management device includes a second shaft, the second shaft is fixedly connected or limitedly connected with the fitting part, and the third accommodating chamber includes a first sub-chamber and the valve chamber, forming the first subchamber. The wall of a sub-cavity includes the wall of the first partition; the first housing includes a second partition, the second partition has a receiving hole for receiving part of the second shaft, along the second In the axial direction of the shaft, the first sub-cavity is located on one side of the second isolation part, and the valve cavity is located on the opposite side of the second isolation part; The fluid management device includes a transmission component, at least part of which is located in the first sub-chamber, the transmission component includes a first tooth portion and a second tooth portion, the first tooth portion is connected to the first shaft Fixed connection or limited connection, the second tooth part is fixedly connected or limited connection with the second shaft, and the first tooth part is directly or indirectly transmission connected to the second tooth part. 4. The fluid management device according to claim 2 or 3, wherein the first housing comprises a first body and a second body, and along the axial direction of the first rotor, the first body and the second body The second main body is distributed along the axial direction of the first rotor, the first accommodating cavity has an opening facing the impeller in the first main body, at least part of the second accommodating cavity is located in the second main body , the walls forming the first accommodating chamber include the first side wall of the first partition and the inner wall of the first main body, the second accommodating chamber has an opening facing away from the first partition, forming The walls of the second accommodating cavity include a second side wall of the first isolation part and an inner wall of the second main body. 5. The fluid management device according to claim 4, characterized in that, the first isolation part, the first main body and the second main body are integrally constructed; Alternatively, the first isolation part, the first body and the second body are separate structures; the first isolation part is sealingly connected to the end of the first body that is relatively far away from the impeller, and the The second body is in sealing connection with the first isolation part, or the second body is in sealing connection with one end of the first body; Alternatively, the first body and the second body are separate structures, the first isolation part is integrally structured with one of the first body and the first body, and the first isolation part and The other one is hermetically connected. 6. The fluid management device according to any one of claims 1-5, wherein the housing comprises a second housing and a third housing, along the axial direction of the first rotor, at least part of the The second housing is located on one side of the first housing, at least part of the third housing is located on the other side of the first housing, and the second housing is connected to one end of the first main body. The part of the second housing is sealed and connected, the wall forming the second housing chamber includes the inner wall of the second housing, the third housing is sealed and connected with one end of the second body, and the wall of the third housing chamber is formed. The wall also includes an inner wall of the third housing. 7. The fluid management device according to claim 6, characterized in that, the fluid management device comprises an isolation sleeve, at least part of the isolation sleeve is located in the first accommodating chamber, and at least part of the first rotor is located in the The inner circumference of the isolation sleeve, the stator assembly and the second rotor are located on the outer circumference of the isolation sleeve; the isolation sleeve is in sealing connection with the first main body. 8. The fluid management device of claim 7, wherein the housing comprises a fourth housing, the housing having a circuit board receiving cavity, a wall forming the circuit board receiving cavity comprising the first A side wall of the housing and an inner wall of the fourth housing, the first housing is fixedly connected or limitedly connected to the fourth housing; The fluid management device includes a circuit board, the circuit board is located in the circuit board accommodating cavity, and the circuit board is electrically or signally connected to the stator assembly. 9. The fluid management device according to claim 8, wherein the first port and the fourth port are formed in the second housing, the second port, the third port, the The fifth port is formed on the second body.

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