Fluid control device

Abstract

This invention discloses a fluid control device, including a main housing, a pump assembly, and a valve assembly. The pump assembly includes a first pump assembly, a second pump assembly, and a third pump assembly. The valve assembly includes a first valve assembly. The main housing has a first sub-cavity, a second sub-cavity, a third sub-cavity, and a fourth sub-cavity spaced apart. At least a portion of the first pump assembly is located in the first sub-cavity, at least a portion of the second pump assembly is located in the second sub-cavity, at least a portion of the third pump assembly is located in the third sub-cavity, and at least a portion of the first valve assembly is located in the fourth sub-cavity. In the main housing, at least one of the first, second, and third sub-cavities communicates with the fourth sub-cavity. This reduces the space occupied by the fluid control device and improves its integration.

Description

Technical Field

[0001] This invention relates to the field of fluid control, and more specifically to a fluid control device. Background Technology

[0002] Fluid control devices typically include multiple fluid components. How to integrate these fluid components and reduce the space occupied by the fluid control device is a technical problem that needs to be improved. Summary of the Invention

[0003] The purpose of this invention is to provide a fluid control device that can reduce the space occupied by the fluid control device and improve the integration of the fluid control device.

[0004] This invention provides a fluid control device, which includes a main housing, a pump assembly, and a valve assembly. The pump assembly includes a first pump assembly, a second pump assembly, and a third pump assembly. The valve assembly includes a first valve assembly. The main housing has a first sub-cavity, a second sub-cavity, a third sub-cavity, and a fourth sub-cavity spaced apart. At least a portion of the first pump assembly is located in the first sub-cavity, at least a portion of the second pump assembly is located in the second sub-cavity, at least a portion of the third pump assembly is located in the third sub-cavity, and at least a portion of the first valve assembly is located in the fourth sub-cavity.

[0005] In the main housing, at least one of the first sub-cavity, the second sub-cavity, and the third sub-cavity is in communication with the fourth sub-cavity.

[0006] According to an embodiment of the present invention, the fluid control device includes a main housing, a first pump assembly, a second pump assembly, a third pump assembly, and a first valve assembly. The main housing has a first sub-cavity, a second sub-cavity, a third sub-cavity, and a fourth sub-cavity spaced apart. At least a portion of the first pump assembly is located in the first sub-cavity, at least a portion of the second pump assembly is located in the second sub-cavity, at least a portion of the third pump assembly is located in the third sub-cavity, and at least a portion of the first valve assembly is located in the fourth sub-cavity. This facilitates the installation of the pump assembly and the valve assembly in the same main housing. Furthermore, at least one of the first, second, and third sub-cavities communicates with the fourth sub-cavity within the main housing, enabling fluid communication between at least one pump assembly and the valve assembly within the main housing. This reduces the piping structure in the fluid control device. Through the above arrangement, the space occupied by the fluid control device can be reduced, and the integration of the fluid control device can be improved. Attached Figure Description

[0007] Figure 1 This is an exploded structural diagram of the fluid control device provided in the first embodiment of the present invention;

[0008] Figure 2 yes Figure 1The diagram shows a three-dimensional structure of the fluid control device.

[0009] Figure 3 This is an exploded structural diagram of a driving component provided in one embodiment of the present invention;

[0010] Figure 4 yes Figure 3 A three-dimensional structural diagram of the driving component is shown in the figure;

[0011] Figure 5 yes Figure 4 A schematic diagram of a cross-sectional structure of a drive component is shown in the figure;

[0012] Figure 6 This is a partial cross-sectional structural diagram of the combined structure of the first housing and the driving component provided in one embodiment of the present invention;

[0013] Figure 7 This is a schematic diagram of the cross-sectional structure of another driving component of the present invention;

[0014] Figure 8 This is a schematic diagram of the cross-sectional structure of another driving component of the present invention;

[0015] Figure 9 yes Figure 4 A three-dimensional structural schematic diagram of the stator assembly is shown in the figure;

[0016] Figure 10 This is an exploded structural diagram of a fluid component provided in one embodiment of the present invention;

[0017] Figure 11 yes Figure 10 A three-dimensional structural schematic diagram of the fluid assembly is shown in the figure;

[0018] Figure 12 yes Figure 11 The diagram shows a cross-sectional view of the first type of fluid assembly at one of its locations.

[0019] Figure 13 This is a partial cross-sectional structural diagram of the fluid assembly provided in the second embodiment of the present invention;

[0020] Figure 14 This is a three-dimensional structural schematic diagram of the main housing provided in one embodiment of the present invention;

[0021] Figure 15 yes Figure 14 The diagram shows a cross-sectional view of the main shell structure.

[0022] Figure 16 yes Figure 13 A schematic diagram of a cross-sectional structure of a fluid assembly is shown in the figure;

[0023] Figure 17 This is a partial cross-sectional structural schematic diagram of the fluid control device provided in the first embodiment of the present invention;

[0024] Figure 18 yes Figure 17 A magnified structural diagram at Q1;

[0025] Figure 19 This is a partial cross-sectional schematic diagram of the combined structure of the first drive component and fluid component of the present invention;

[0026] Figure 20 yes Figure 19 The diagram shows a partial enlarged view of the combined structure of the drive component and the fluid component.

[0027] Figure 21 This is a partial cross-sectional structural diagram of the combined structure of the second drive component and fluid component of the present invention;

[0028] Figure 22 This is a partial cross-sectional schematic diagram of the combined structure of the third drive component and fluid component of the present invention;

[0029] Figure 23 This is a partial cross-sectional structural diagram of the fourth combined structure of the drive component and the fluid component of the present invention;

[0030] Figure 24 This is a partial cross-sectional structural diagram of the fifth combined structure of the drive component and the fluid component of the present invention;

[0031] Figure 25 This is a partial cross-sectional schematic diagram of the combined structure of the sixth driving component and the fluid component of the present invention;

[0032] Figure 26 This is a partial cross-sectional schematic diagram of the seventh combined structure of the drive component and the fluid component of the present invention;

[0033] Figure 27 This is an exploded structural diagram of the fluid control device provided in the second embodiment of the present invention;

[0034] Figure 28 yes Figure 27 The diagram shows a three-dimensional structure of the fluid control device.

[0035] Figure 29 yes Figure 27 The diagram shows an exploded structure of a driving component;

[0036] Figure 30 yes Figure 29 A three-dimensional structural diagram of the driving component is shown in the figure;

[0037] Figure 31 yes Figure 29 The diagram shows a cross-sectional structure of a drive component.

[0038] Figure 32 yes Figure 27 A schematic diagram of an exploded structure of a fluid component is shown in the figure;

[0039] Figure 33 yes Figure 32 A three-dimensional structural schematic diagram of the fluid assembly is shown in the figure;

[0040] Figure 34 yes Figure 27 The diagram shows a front view of the fluid control device.

[0041] Figure 35 yes Figure 34 The diagram shows a cross-sectional view of a fluid control device at point AA.

[0042] Figure 36 yes Figure 34 The diagram shows a cross-sectional view of a fluid control device at point BB.

[0043] Figure 37 yes Figure 33 The diagram shows a cross-sectional view of a fluid assembly at one of its locations.

[0044] Figure 38 yes Figure 33 The diagram shows a cross-sectional view of a fluid assembly at another location.

[0045] Figure 39 yes Figure 27 A partial structural schematic diagram of a fluid control device is shown in the figure;

[0046] Figure 40 yes Figure 27 The diagram shows a cross-sectional view of the fluid control device at yet another location.

[0047] Figure 41 yes Figure 27 The diagram shows a schematic connection of the first valve assembly, the first pump assembly, and the second pump assembly in a first operating mode.

[0048] Figure 42 yes Figure 27 The diagram shows a schematic connection of the first valve assembly, the first pump assembly, and the second pump assembly in a second operating mode.

[0049] Figure 43 yes Figure 27 The diagram shows the connection of the first valve assembly, the first pump assembly, and the second pump assembly in the third operating mode.

[0050] Figure 44 yes Figure 27 The diagram shows the connection of the first valve assembly, the first pump assembly, and the second pump assembly in the fourth operating mode.

[0051] Figure 45 This is a schematic block diagram of a method for manufacturing a fluid control device according to an embodiment of the present invention. Detailed Implementation

[0052] The features and exemplary embodiments of various aspects of the present invention will now be described. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. In this document, relational terms such as "first" and "second" are used merely to distinguish one component from another that has the same name, and do not necessarily require or imply any such actual relationship or order between these components.

[0053] The fluid control device provided in this embodiment of the invention can be applied to a thermal management system, such as a vehicle thermal management system. By controlling the fluid through the fluid control device, it is easy to realize the flow of fluid in the thermal management system.

[0054] like Figures 1 to 8 As shown, this embodiment of the invention provides a fluid control device 1, which includes a drive assembly 100 and a fluid assembly 200. The drive assembly 100 and the fluid assembly 200 are sealed together. In specific implementation, the drive assembly 100 and the fluid assembly 200 can be assembled together as a whole, and a seal can be provided between the drive assembly 100 and the fluid assembly 200 to achieve a sealed connection between the two.

[0055] The drive assembly 100 includes at least two drive components 13, each of which may include a stator assembly 130, a motor 132, or a combination of a motor 132 and a gear assembly 133. The fluid assembly 200 includes at least two fluid subassemblies LK, each of which includes an actuator. Each fluid subassembly LK may include one or a combination of a valve assembly 30 and a pump assembly 20. The actuator in the valve assembly 30 includes a valve core, and the actuator in the pump assembly 20 includes a rotor assembly. When power is supplied to the drive component 13, the drive component 13 can actuate the actuator in the fluid subassembly LK. For example, when the stator assembly is powered, it generates a magnetic field, and the rotor assembly rotates under the influence of the magnetic field; or when the motor is powered, the motor's output shaft rotates, which can drive the valve core in the valve assembly to rotate. Optionally, the number of drive components 13 can be the same as the number of fluid subassemblies LK and correspond one-to-one. Powering one drive component 13 can actuate the actuator in a corresponding fluid subassembly LK. The actuation of the fluid subassemblies LK in the fluid assembly 200 enables fluid to flow within the fluid control device 1. It is understandable that the number of drive components 13 may differ from the number of fluid sub-assemblies LK. For example, the number of drive components 13 may be less than the number of fluid sub-assemblies LK, thereby enabling one drive component 13 to drive at least two fluid sub-assemblies LK. For instance, a clutch mechanism can be used to enable one drive component 13 to drive at least two fluid sub-assemblies LK. Figure 1 As shown, in this embodiment, there are five fluid sub-components LK, and correspondingly, there are five driving components 13, with each of the five driving components corresponding one-to-one with the five fluid sub-components LK. In other embodiments, the number of fluid sub-components LK and the number of driving components 13 can be set according to user needs, and can be two, three, four, six, or more.

[0056] Furthermore, embodiments of the present invention also provide a driving component 100, such as... Figures 3 to 9As shown, the drive assembly 100 further includes a first housing 11 and a second housing 12. The drive assembly 100 has a first receiving cavity 101. The first housing 11 and the second housing 12 form at least a portion of the wall of the first receiving cavity 101. In this embodiment, the second housing 11 includes a top cover portion. The top cover portion and the bottom wall portion 111 are disposed opposite each other along the height direction of the drive assembly 100. The first housing 11 and the second housing 12 are fastened together to form the first receiving cavity 101. At least a portion of at least two drive components 13 are located in the first receiving cavity 101, such that at least two drive components 13 are integrated into one drive assembly 100. Compared with the separate arrangement of multiple drive assemblies for the fluid control assembly, this not only reduces the number of leads but also reduces the space occupied by the drive assembly 100. Optionally, all of the drive components 13 may be limitedly connected to the first housing 11, or a portion of the drive components 13 may be limitedly connected to the first housing 11. This invention does not limit this.

[0057] like Figures 3 to 9 As shown, in the drive assembly 100, the first housing 11 includes a bottom wall portion 111, a limiting portion 112, and a peripheral sidewall 113. The peripheral sidewall 113 is connected to the bottom wall portion 111, and the bottom wall portion 111 is connected to the limiting portion 112. For example, the peripheral sidewall 113, the bottom wall portion 111, and the limiting portion 112 can be injection molded into a single structure, welded together, or connected by fasteners or other limiting connections. At least a portion of the limiting portion 112 protrudes from the bottom wall portion 111 along the height direction of the drive assembly 100. The bottom wall portion 111 and the peripheral wall portion 113 form a portion of the wall of the first receiving cavity 101. At least one drive component 13 includes a stator assembly 130. The drive component including the stator assembly 130 is defined as the first drive component, and at least a portion of the first drive component is limitedly connected within the limiting portion 112. Figures 3 to 8As shown, at least a portion of the stator assembly 130 included in the first driving component is located within the limiting portion 112. Alternatively, the first driving component may also include a pump housing, with at least a portion of the stator assembly 130 located within the cavity of the pump housing. For example, the stator assembly 130 may be injection molded and fixed to the pump housing or assembled into the cavity of the pump housing as an insert. In this case, at least a portion of the pump housing or the pump housing and the stator assembly 130 as a whole is located within the limiting portion 112. In this document, the limiting connection of at least a portion of the stator assembly 130 within the limiting portion 112 may mean that at least a portion of the first driving component is integrally formed with the limiting portion 112 through an injection molding process, thereby causing at least a portion of the first driving component to be located within the limiting portion 112. Alternatively, the first driving component and the first housing 11 may be separately disposed, with the limiting portion 112 having a cavity, and at least a portion of the first driving component may also be located within the cavity formed by the limiting portion 112. By limiting and connecting at least a portion of the first driving component within the limiting portion 112, it is easy to integrate at least two stator components 130 in one driving component 100. Compared to setting multiple driving devices, the fluid control device provided in this embodiment of the invention is easier to reduce the space occupied by the driving component 100 and improve the integration of the driving component 100.

[0058] Please refer to further information. Figures 1 to 9 In this embodiment, the drive assembly 100 includes five drive components 13. Along the height direction of the drive assembly 100, there are gaps between the orthographic projections of the five drive components 13. Three of the drive components 13 include stator assemblies 130, each of which can be limited and connected to a corresponding limiting portion 112 and is located within that limiting portion 112. Alternatively, in other embodiments, one of the drive components 13 of the drive assembly 100 includes a stator assembly 130, while the other drive components can be motors or other drive components, thereby achieving the integration of different types of drive components 13.

[0059] To facilitate the positioning of the stator assembly 130, in some embodiments, at least a portion of the limiting portion 112 extends from the bottom wall portion 111 in a direction away from the first receiving cavity 101. In this case, at least a portion of the limiting portion 112 extends from the bottom wall portion 111 in a direction closer to the fluid sub-assembly LK, and at least a portion of the limiting portion 112 protrudes from the bottom wall portion 111 in a direction away from the second housing 12. Optionally, the stator assembly 130 can be injection molded to the limiting portion 112; in this context, injection molding means molding into an integral structure. Specifically, the stator assembly 130 can be used as an insert and integrally injection molded with the first housing 11, so that the stator assembly 130 and the limiting portion 112 are injection molded into an integral structure. In this case, during injection molding, electrical connection wires can be led out from the stator assembly 130, allowing for electrical connection to the control components; or as... Figure 7As shown, the limiting part 112 includes a mounting cavity QS, at least a portion of the stator assembly 130 is located in the mounting cavity QS, and the stator assembly 130 can be limited and connected to the first housing 11 by means of fasteners or the like. This arrangement facilitates the limiting setting of the stator assembly 130 and the limiting part 112. When at least two drive components 13 both include stator assemblies 130, all stator assemblies 130 and the limiting part 112 can be injection molded into a single structure, or all stator assemblies 130 can be assembled into the mounting cavity QS formed by the limiting part 112, or a portion of the stator assemblies 130 and the limiting part 112 can be injection molded into a single structure, and another portion of the stator assemblies 130 and the limiting part 112 can be injection molded into a single structure.

[0060] like Figure 8 and Figure 9 As shown, to realize the function of the drive component, the drive component of this embodiment of the invention further includes a control component 15, which can be a circuit board. The drive component including the stator assembly 130 is defined as the first drive component. In some other embodiments, the first drive component also includes a pump housing 135, a transition terminal 134 connected to the pump housing 135, and a connecting plate 136. The stator assembly 130 and the first housing 11 are separately disposed. At this time, the stator assembly 130 is assembled into the mounting cavity QS formed by the limiting part 112. At least a part of the stator assembly 130 and the connecting plate 136 are located in the cavity of the pump housing 135. The pump housing 135 is sealed to the first housing 11, for example in Figure 8 In this configuration, the pump housing 135 can be sealed to the first housing 11 via a sealing ring, or the pump housing 135 and the limiting portion 112 of the first housing 11 can be injection molded as a single unit. The stator assembly 130 includes a coil winding 1303, which is electrically connected to a pin in a transition terminal 134 via a conductive element in a connecting plate 136. A portion of the transition terminal 134 passes through the bottom wall portion 111 and is located in the first receiving cavity 101. The transition terminal 134 is electrically connected to the control component 15. It should be noted that the drive component in this document includes the stator assembly 130 or the motor 132. The drive component may also include a lead wire structure or a terminal structure, which enables the control component 15 to be electrically connected to the stator assembly 130 or the motor 132.

[0061] To achieve electrical connection between the stator assembly 130 and the control unit 15, a metal conductive structure can be provided in the first housing 11. This metal conductive structure can be injection molded integrally with the first housing 11, so that the metal conductive structure is embedded in the first housing 11. The output terminal 1304 of the stator assembly 130 can use insulation displacement connectors (IDCs), in which case it can be electrically connected to the control unit 15 through the IDC pins.

[0062] In this embodiment, the drive assembly 100 of the present invention includes three stator assemblies 130. Correspondingly, each stator assembly 130 includes an insulating frame 1301, a stator core 1302, and a coil winding 1303. A portion of the stator core 1302 is embedded within the insulating frame 1301, and the coil winding 1303 is wound around the insulating frame 1301. When the coil winding 1303 is energized, it can generate a magnetic field. The rotor assembly 22 in the pump assembly 20 can be located within the magnetic field range of the corresponding stator assembly 130, thereby enabling the stator assembly 130 to drive the rotor assembly 22 to rotate. Through the above arrangement, the stator assembly 130 can be integrated into the drive assembly 100.

[0063] In some embodiments, such as Figure 24 As shown, the fluid control device may further include an isolation sleeve 23, a portion of which is located on the inner circumferential side of the stator assembly 130. Optionally, the isolation sleeve 23 may be injection molded integrally with the first housing 11, in which case the stator assembly 130 may be injection molded integrally with the limiting portion 112, or the stator assembly 130 may be located within the mounting cavity QS of the limiting portion 112. Optionally, as... Figures 19 to 24 As shown, the isolation sleeve 23 and the stator assembly 130 are injection molded as a single unit, or at least a portion of the stator assembly 130 is located within the cavity formed by the isolation sleeve 23. The isolation sleeve 23 and the stator assembly 130 are separately disposed from the first housing 11 and sealed together. A sealing ring is provided between the integral structure formed by the isolation sleeve 23 and the stator assembly 130 and the first housing 11. By clamping the sealing ring, a sealing arrangement is achieved between the integral structure and the first housing 11. Through the above arrangement, the isolation sleeve 23 and the first housing 11 can be positioned and sealed together.

[0064] In specific implementation, when the stator assembly 130 and the limiting part 112 are injection molded as an integral structure, the isolation sleeve 23 can be injection molded as an integral structure with the first housing 11, or the isolation sleeve 23 and the first housing 11 can be separately arranged and sealed together. When the stator assembly 130 is assembled into the mounting cavity QS of the limiting part 112, the isolation sleeve 23 can be injection molded as an integral structure with the first housing 11, or the isolation sleeve 23 and the first housing 11 can be separately arranged and sealed together, or the isolation sleeve 23 and the stator assembly 130 can be injection molded as an integral structure, and the isolation sleeve 23 and the stator assembly 130 can be separately arranged and sealed together with the first housing 11 as a whole. When there are at least two stator assemblies 130, the limiting connection methods between different stator assemblies 130 and the first housing 11 can be the same or different, and the connection methods between the isolation sleeve 23 and the first housing 11 corresponding to different stator assemblies 130 can be the same or different.

[0065] For fluid assembly 200, please refer to further details. Figures 10 to 15As shown, in some embodiments, the fluid assembly 200 further includes a main housing 40 having chambers, in which at least a portion of the fluid subassembly LK is located. The fluid subassembly LK includes at least two pump assemblies 20, each pump assembly 20 including a rotor assembly 22. A portion of one rotor assembly 22 can be nested with a corresponding stator assembly 130, such that the stator assembly 130 can drive the rotor assembly 22 to rotate when energized. Alternatively, the stator assembly 130 and rotor assembly 22 can also be disc-shaped structures. One pump assembly is defined as a first pump assembly 20a, and the other as a second pump assembly 20b. The first pump assembly 20a includes a first rotor assembly 22a, and the second pump assembly 20b includes a second rotor assembly 22b. The first rotor assembly 22a is located within the magnetic field range of the first stator assembly 130a, and the second rotor assembly 22b is located within the magnetic field range of the second stator assembly 130b. In practical implementation, the number of pump assemblies can be set according to user needs, for example, two, three, four or more. In this embodiment, each of the three fluid sub-assemblies LK includes a pump assembly 20, namely a first pump assembly 20a, a second pump assembly 20b, and a third pump assembly 20c, with gaps between the three pump assemblies. This arrangement facilitates the integration of at least two pump assemblies 20 and reduces the number of pipeline connections between the pump assemblies 20.

[0066] To facilitate the implementation of multiple operating modes of the fluid control device, in some embodiments, at least one fluid sub-component LK includes a pump assembly 20 and a valve assembly 30. The valve assembly 30 includes a valve core 31 and a valve core shaft 32. The valve core 31 and the valve core shaft 32 can be injection molded as an integral structure, or connected by an interference fit or a connecting key. The valve core 31 is driven to the output shaft of the motor 132 via the valve core shaft 32, and the valve core 31 can rotate or translate under the power of the motor 132. In this embodiment, the valve core 31 can rotate under the drive, thereby facilitating the implementation of multiple operating modes of the fluid control device 1. In this text, the transmission connection between two components means that the driving force can be transmitted between the two components. The two components can be directly or indirectly connected. Specifically, the valve core shaft 32 of the valve assembly 30 can be directly connected to the motor 132, or the drive assembly 100 can also include a gear assembly 133, through which the motor 132 can be driven to the valve core shaft 32 of the valve core 31. In practical implementation, the number of valve assemblies 30 can be set according to user needs, for example, in Figure 1 In this embodiment, two of the fluid sub-components LK include valve components 30, and correspondingly, the drive component 100 includes two motors 132, thereby enabling the motors 132 to drive the corresponding valve components 30.

[0067] Furthermore, such as Figures 3 to 16 As shown, in some embodiments, the pump assembly 20 includes a rotor assembly 22, and an isolation sleeve 23 of the fluid control device is disposed on the outer periphery of the rotor assembly 22. By providing the isolation sleeve 23, the stator assembly 130 and the corresponding rotor assembly 22 can be isolated from each other, preventing working fluid from entering the space where the stator assembly 130 is located.

[0068] To enable fluid flow within the fluid control device 1, in some embodiments, at least a portion of the main housing 40 is located on the side of the first housing 11 opposite to the first receiving cavity 101, such as... Figure 1 As shown, at least a portion of the main housing 40 is located on the side of the first housing 11 opposite to the second housing 12. The main housing 40 also includes a connecting pipe 41, which may be arranged circumferentially along the main housing 40, or the connecting pipe 41 may be integrated into at least one mounting surface. Figures 11 to 17 As shown, the main housing 40 has a first chamber 401, a first channel 404 and a second channel 405, both of which are connected to the first chamber 401. At least a portion of a pump assembly 20 is located in the first chamber 401. Rotation of the rotor assembly 22 can drive fluid to flow through the first channel 404 and the second channel 405. Optionally, the rotor assembly 22 includes an impeller assembly 221 and a magnetic assembly 223, and the pump assembly 20 also includes a positioning shaft 222. The impeller assembly 221 is sleeved on the outer periphery of the positioning shaft 222, and at least a portion of the impeller assembly 221 can be located in the first chamber 401. At least a portion of the first channel 404 is arranged with the impeller assembly along the height direction of the pump assembly 20. The second channel 405 corresponds to the position of the impeller assembly 221. Optionally, at least a portion of the wall of the first channel 404 can be coaxially arranged with the rotating shaft of the impeller assembly 221. The opening of the second channel 405 is located at the circumferential edge of the impeller assembly 221. Fluid can enter the impeller assembly from the first channel 404. Under the action of the centrifugal force of the impeller assembly, the fluid is discharged from the second channel 405. At this time, the first channel 404 can be the inlet channel of the pump assembly 20, and the second channel 405 can be the outlet channel of the pump assembly 20.

[0069] When at least one fluid sub-assembly LK also includes a valve assembly 30, the main housing 40 further includes a second chamber 402, which is spaced apart from the first chamber 401. At least a portion of a pump assembly 20 is sealed in the first chamber 401, and at least a portion of a valve core 31 is located in the second chamber 402. Optionally, a seal can be provided between at least a portion of the pump assembly 20 and the main housing 40, or a portion of the pump assembly 20 can be welded to the main housing 40 to achieve a sealed arrangement. Similarly, a seal can be provided between the valve core 31 and the main housing 40, or multiple separate components of the main housing 40 can be welded to seal the valve core 31 in the second chamber 402. With the above arrangement, at least one pump assembly 20 and at least one valve core 31 can be integrated into a single main housing 40, thereby reducing the space occupied by the fluid assembly 200 and further reducing the space occupied by the fluid control device 1.

[0070] like Figures 12 to 19 As shown, to achieve fluid interaction in the pump assembly 20 and valve assembly 30, in some embodiments, the main housing 40 also has a connecting channel 407 and multiple flow channels 406. The main housing 40 has a flow channel plate 44 and a cavity shell 45. The cavity shell 45 and the flow channel plate 44 are injection molded as an integral structure. The first chamber 401, the second chamber 402 and the flow channels 406 are located in the cavity shell 45, and the connecting channel 407 is located in the flow channel plate 44. At least a portion of the flow channel plate 44 is connected between two fluid sub-assemblies LK. For example, the flow channel plate 44 can be connected between the pump assembly 20 and the valve assembly 30, or the flow channel plate 44 can also be connected between two valve assemblies 30. In this embodiment of the invention, by integrating the flow channel plate 44 and the cavity shell 45 into one piece, it is easy to reduce the pipeline connections between the cavities 45 and improve the integration level of the fluid control device. Furthermore, multiple flow channels 406 are distributed on the outer periphery of the second chamber 402. One flow channel 406 is connected to one of the first channel 404 and the second channel 405 through a connecting channel 407. The valve core 30 includes a guiding cavity 31, which can connect at least two flow channels 406. The extending directions of the interconnecting connecting channel 407, the extending directions of the flow channels 406, and the extending directions of the first channel 404 or the second channel 405 intersect.

[0071] In some embodiments, please refer to further information. Figures 1 to 19Pump assembly 20 includes a first pump assembly 20a, a second pump assembly 20b, and a third pump assembly 20c. Valve assembly 30 includes a first valve assembly 30a and a second valve assembly 30b. The first valve assembly 30a includes a first valve core 31a and a first seal (not shown in the figure). The second valve assembly 30b includes a second valve core 31b and a second seal (not shown in the figure). The first pump assembly 20a, the second pump assembly 20b, the third pump assembly 20c, and the second valve assembly 30b are distributed on the outer periphery of the first valve assembly 30a. The flow channel 406 located on the outer periphery of the first valve assembly 30a is defined as the first flow channel 4061. The first flow channel 4061 is located on the wall of the chamber where the first valve assembly 30a is located. The number of first flow channels 4061 can be at least eight, for example, eight. The flow channel located on the outer periphery of the second valve assembly 30b is defined as the second flow channel 4062. The second flow channel 4062 is located on the wall of the chamber where the second valve assembly 30b is located. The second flow channel 4062 can have at least three, for example, three in total. One of the first flow channels 4061 is interconnected with one of the second flow channels 4062. The first valve core 31a includes at least four conducting chambers 311. The conducting chambers 31 of the first valve core 31a can connect two first flow channels 4061 in pairs, and the conducting chambers of the second valve core can connect two or three second flow channels 4062. By rotating the first valve core 31a, the connection and switching of at least two first flow channels can be achieved. By rotating the second valve core 31b, the connection, switching, and flow regulation between the second flow channels can be achieved.

[0072] Based on this, the communication channel 407 of the main housing 40 may include a first communication channel 407a, a second communication channel 407b, and a third communication channel 407c. The first chamber 401 includes a first sub-chamber A1, a second sub-chamber A2, and a third sub-chamber A3. The second chamber 402 includes a fourth sub-chamber A4 and a fifth sub-chamber A5. At least a portion of the first pump assembly 20a is located in the first sub-chamber A1, at least a portion of the second pump assembly 20b is located in the second sub-chamber A2, at least a portion of the third pump assembly 20c is located in the third sub-chamber A3, at least a portion of the first valve assembly 30a is located in the fourth sub-chamber A4, and at least a portion of the second valve assembly 30b is located in the fifth sub-chamber A5. The first sub-chamber A1, the second sub-chamber A2, and the third sub-chamber A3 are all connected to the fourth sub-chamber A4, and the fifth sub-chamber A5 is connected to the fourth sub-chamber A4. The first channel 404 includes a first sub-channel 404a, a second sub-channel 404b, and a third sub-channel 404c. The second channel 405 includes a fourth sub-channel 405a, a fifth sub-channel 405b, and a sixth sub-channel 405c. The first sub-channel 404a and the fourth sub-channel 405a are both connected to the first sub-cavity A1. The second sub-channel 404b and the fifth sub-channel 405b are both connected to the second sub-cavity A2. The third sub-channel 404c and the sixth sub-channel 405c are both connected to the third sub-cavity A3. A first connecting channel 407a connects the first sub-cavity A1 to the fourth sub-cavity A4. Specifically, the first connecting channel 407a connects the first sub-channel 404a to the first valve core 31a. A first flow channel 4061 on the outer periphery is connected, and a fourth sub-channel 405a is connected to the inner cavity of the connector 41; a second connecting channel 407b connects the second sub-cavity A2 and the fourth sub-cavity A4. Specifically, the second connecting channel 407b connects the second sub-channel 404b to another first flow channel 4061 located on the outer periphery of the first valve core 31a, and a fifth sub-channel 405b is connected to the inner cavity of the connector 41; a third connecting channel 407c connects the third sub-cavity A3 and the fourth sub-cavity A4. Specifically, the third connecting channel 407c connects the sixth sub-channel 405c to yet another first flow channel 4061 located on the outer periphery of the first valve core 31a, and a third sub-channel 404c is connected to the inner cavity of the connector 41.

[0073] Furthermore, the main housing 40 also includes a fourth connecting channel 407d, which connects the fifth sub-cavity A5 and the fourth sub-cavity A4. The first connecting channel 407a, the second connecting channel 407b, the third connecting channel 407c, and the fourth connecting channel 407d are respectively disposed on the outer peripheral surface of the wall of the fourth sub-cavity A4. Figure 15As shown, in some embodiments, at least portions of the first connecting channel 407a, the second connecting channel 407b, the third connecting channel 407c, and the fourth connecting channel 407d are spaced apart along the circumferential direction of the wall of the fourth sub-cavity A4. In other embodiments, the connecting channels may also be configured in other forms, for example, at least some of the connecting channels may be arranged along the height direction of the fluid control device. Through the above configuration, the pump assembly 20 and the valve assembly can work together to achieve multiple operating modes of the fluid control device. When this fluid control device is applied to a thermal management system, it can realize multiple operating states of the thermal management system, thereby facilitating the cooling and temperature reduction functions of different heat sources.

[0074] The fluid control device provided in the embodiments of the present invention will be described below.

[0075] Please refer to the following: Figures 1 to 26 In some embodiments, at least two drive components 13 each include a stator assembly 130, and at least two fluid sub-assemblies LK each include a pump assembly 20. One pump assembly is defined as a first pump assembly 20a, and the other as a second pump assembly 20b. One stator assembly is defined as a first stator assembly 130a, and the other as a second stator assembly 130b. A limiting portion 112 includes a first limiting portion 112a and a second limiting portion 112b. At least a portion of the first stator assembly 130a is limitedly connected within the first limiting portion 112a. At least a portion of the stator assembly 130b is limited and connected within the second limiting portion 112b. The first pump assembly 20a includes a first rotor assembly 22a, and the second pump assembly 20b includes a second rotor assembly 22b. The first rotor assembly 22a is capable of being located within the magnetic field range of the first stator assembly 130a, and the second rotor assembly 22b is capable of being located within the magnetic field range of the second stator assembly 130b. Optionally, a portion of the first rotor assembly 22a is located inside the first stator assembly 130a, and a portion of the second rotor assembly 22b is located inside the second stator assembly 130b. With this configuration, at least two stator assemblies 130 can be integrated into one drive assembly 100, which improves the integration of the drive assembly 100 compared to separating the two stator assemblies 130 into different drive assemblies.

[0076] like Figures 1 to 9As shown, in this embodiment, each of the three drive components 13 includes a stator assembly 130, which is a first stator assembly 130a, a second stator assembly 130b, and a third stator assembly 130c. Accordingly, the first housing 11 includes a first limiting part 112a, a second limiting part 112b, and a third limiting part 112c. The number of fluid sub-assemblies LK including pump assemblies 20 can also be two, three, four, or more. In this embodiment, the fluid sub-assemblies LK include three pump assemblies 20, which are defined as the first pump assembly 20, the second pump assembly 130b, and the third pump assembly 130c. 0a, second pump assembly 20b, and third pump assembly 20c, wherein a portion of the third rotor assembly 22c is located inside the third stator assembly 130c, and the third rotor assembly 22c is located within the magnetic field range of the third stator assembly 130c. Optionally, the first stator assembly 130a can be injection molded integrally with the first limiting part 112a, the second stator assembly 130b can be injection molded integrally with the second limiting part 112b, the third stator assembly 130c can be injection molded integrally with the third limiting part 112c, and the limiting part 112 and the bottom wall part 111 can be injection molded integrally.

[0077] In some embodiments, at least one fluid sub-assembly LK includes a pump assembly 20, at least one fluid sub-assembly LK includes a valve assembly 30, wherein at least one drive component 13 includes a stator assembly 130, and at least one other drive component 13 includes a motor 132. The first housing 11 also includes a mounting portion 114, which is spaced apart from a limiting portion 112. The motor 132 is limitedly connected to the mounting portion 114, and at least a portion of the motor 132 is located in the first receiving cavity 101. With the above configuration, it is convenient to integrate at least one stator assembly 130 and at least one motor 132 into a single drive component 100. The valve assembly 30 includes a valve core 31 and a valve core shaft 32. The valve core 31 and the valve core shaft 32 can be injection molded as a single unit, or connected by an interference fit or a connecting key. The valve core 31 is driven to the output shaft of the motor 132 via the valve core shaft 32. The valve core 31 can rotate or translate under the power of the motor 132. In this embodiment, the valve core 31 can rotate under the drive, thereby facilitating the realization of multiple working modes of the fluid control device 1. Specifically, the valve core shaft 32 of the valve assembly 30 can be directly driven to the motor 132, or the drive assembly 100 can also include a gear assembly 133, through which the motor 132 can be driven to the valve core shaft 32 of the valve core 31. Through the above arrangement, at least one stator assembly 130 and at least one motor 132 can be integrated into the same drive assembly 100, which helps to reduce the space occupied by the drive assembly 100. In specific implementations, the number of valve assemblies 30 and the number of motors 132 can be set according to user needs, for example in Figure 1In this embodiment, two of the fluid sub-components LK include valve components 30, and correspondingly, the drive component 100 includes two motors 132, thereby enabling the motors 132 to drive the corresponding valve components 30.

[0078] For details, please refer to further information. Figures 1 to 26 The drive assembly 100 includes five drive components 13, three of which each include a stator assembly 130, defined as a first stator assembly 130a, a second stator assembly 130b, and a third stator assembly 130c. The other two drive components 13 each include a transmission assembly consisting of a motor 132 and a gear assembly 133. One set of transmission assemblies includes a first motor 132a and a first gear assembly 133a, and the other set includes a second motor 132b and a second gear assembly 133b. Correspondingly, the fluid assembly 200 includes five fluid subassemblies LK, three of which each include a pump assembly 20, and the other two fluid subassemblies LK each include a valve assembly 30. Three pump assemblies 20 are defined as a first pump assembly 20a, a second pump assembly 20b, and a third pump assembly 20c. One valve assembly 30 includes a first valve core 31a, and another valve assembly 30 includes a second valve core 31b. The first stator assembly 130a can drive the rotor assembly in the first pump assembly 20a to rotate, the second stator assembly 130b can drive the rotor assembly in the second pump assembly 20b to rotate, and the third stator assembly 130c can drive the rotor assembly in the third pump assembly 20c to rotate. A first transmission assembly consisting of a first motor 132a and a first gear assembly 133a can drive the first valve core 31a to rotate, and a second transmission assembly consisting of a second motor 132b and a second gear assembly 133b can drive the second valve core 31b to rotate. Optionally, along the height direction of the fluid control device 1, the first pump assembly 20a, the second pump assembly 20b, and the third pump assembly 20c are located at the same height on the side away from the main housing 40. That is, the ends of the three pump assemblies near the drive assembly 100 can be located at the same height, which facilitates assembly with the three stator assemblies in the drive assembly 100. Optionally, the three stator assemblies corresponding to the three pump assemblies can also be located at the same height on the side away from the main housing 40, which facilitates electrical connection with the control component. Part of the valve assembly 30 and part of the pump assembly 20 are located at the same height. Through the above arrangement, it is convenient to reduce the height of the fluid control device, and it is convenient to integrate the control components of the valve assembly 30 and the pump assembly 20 with the first housing, and it is convenient to connect them to the same control component.

[0079] The following is about Figures 1 to 26The operating modes of the fluid control device shown are described below. The seven first flow channels 4061 are defined as first sub-flow channel P1, second sub-flow channel P2, third sub-flow channel P3, fourth sub-flow channel P4, sixth sub-flow channel P6, seventh sub-flow channel P7, and eighth sub-flow channel P8. The two second flow channels 4062 are defined as fifth sub-flow channel P5 and ninth sub-flow channel P9. The conducting cavity of the first valve core 31a is defined as the first conducting cavity, and the conducting cavity of the second valve core 31b is defined as the second conducting cavity. The fluid control device provided in this embodiment of the invention has at least one of the following operating modes:

[0080] In the first operating mode, the first valve core 31a rotates to the first position, the first sub-flow channel P1 and the second sub-flow channel P2 are connected through one of the first conducting cavities, the third sub-flow channel P3 and the fourth sub-flow channel P4 are connected through another first conducting cavity, the sixth sub-flow channel P6 and the seventh sub-flow channel P7 are connected through yet another first conducting cavity, and at least one of the fifth sub-flow channel P5 and the ninth sub-flow channel P9 is connected to the eighth sub-flow channel P8 through yet another first conducting cavity, the fourth connecting channel 407d and the second conducting cavity.

[0081] In the second operating mode, the first valve core 31a rotates to the second position, the third sub-flow channel P3 and the second sub-flow channel P2 are connected through one of the first conducting cavities, at least one of the fifth sub-flow channel P5 and the ninth sub-flow channel P9 is connected to the fourth sub-flow channel P4 through another first conducting cavity, the fourth connecting channel 407d and the second conducting cavity, the seventh sub-flow channel P7 and the eighth sub-flow channel P8 are connected through another first conducting cavity, and the sixth sub-flow channel P6 and the first sub-flow channel P1 are connected through yet another first conducting cavity.

[0082] In the third operating mode, the first valve core 31a rotates to the third position, the first sub-flow channel P1 and the eighth sub-flow channel P8 are connected through one of the first conducting cavities, the third sub-flow channel P3 and the fourth sub-flow channel P4 are connected through another first conducting cavity, at least one of the fifth sub-flow channel P5 and the ninth sub-flow channel P9 is connected to the sixth sub-flow channel P6 through another first conducting cavity, the fourth connecting channel 407d and the second conducting cavity, and the second sub-flow channel P2 and the seventh sub-flow channel P7 are connected through yet another first conducting cavity.

[0083] In the fourth operating mode, the first valve core 31a rotates to the fourth position, the first sub-flow channel P1 and the second sub-flow channel P2 are connected through one of the first conducting cavities, at least one of the fifth sub-flow channel P5 and the ninth sub-flow channel P9 is connected to the fourth sub-flow channel P4 through another first conducting cavity, the fourth connecting channel 407d and the second conducting cavity, the sixth sub-flow channel P6 and the seventh sub-flow channel P7 are connected through another first conducting cavity, and the third sub-flow channel P3 and the eighth sub-flow channel P8 are connected through yet another first conducting cavity.

[0084] In the fifth operating mode, the first valve core 31a rotates to the fifth position, the third sub-flow channel P3 and the second sub-flow channel P2 are connected through one of the first conducting cavities, the seventh sub-flow channel P7 and the eighth sub-flow channel P8 are connected through another first conducting cavity, at least one of the fifth sub-flow channel P5 and the ninth sub-flow channel P9 is connected to the sixth sub-flow channel P6 through another first conducting cavity, the fourth connecting channel 407d and the second conducting cavity, and the first sub-flow channel P1 and the fourth sub-flow channel P4 are connected through yet another first conducting cavity.

[0085] In the sixth operating mode, the first valve core 31a rotates to the sixth position, the first sub-flow channel P1 and the eighth sub-flow channel P8 are connected through one of the first conducting cavities, the third sub-flow channel P3 and the fourth sub-flow channel P4 are connected through another first conducting cavity, the sixth sub-flow channel P6 and the seventh sub-flow channel P7 are connected through yet another first conducting cavity, and at least one of the fifth sub-flow channel P5 and the ninth sub-flow channel P9 is connected to the second sub-flow channel P2 through yet another first conducting cavity, the fourth connecting channel 407d and the second conducting cavity.

[0086] In the seventh operating mode, the first valve core 31a rotates to the seventh position, the first sub-flow channel P1 and the second sub-flow channel P2 are connected through one of the first conducting cavities, the seventh sub-flow channel P7 and the eighth sub-flow channel P8 are connected through another first conducting cavity, at least one of the fifth sub-flow channel P5 and the ninth sub-flow channel P9 is connected to the fourth sub-flow channel P4 through another first conducting cavity, the fourth connecting channel 407d and the second conducting cavity, and the sixth sub-flow channel P6 and the third sub-flow channel P3 are connected through yet another first conducting cavity.

[0087] In the eighth working mode, the first valve core 31a rotates to the eighth position, the first sub-flow channel P1 and the eighth sub-flow channel P8 are connected through one of the first conducting cavities, the second sub-flow channel P2 and the third sub-flow channel P3 are connected through another first conducting cavity, at least one of the fifth sub-flow channel P5 and the ninth sub-flow channel P9 is connected to the sixth sub-flow channel P6 through another first conducting cavity, the fourth connecting channel 407d and the second conducting cavity, and the fourth sub-flow channel P4 and the seventh sub-flow channel P7 are connected through yet another first conducting cavity.

[0088] Optionally, the conduction mode between different flow channels or the proportional adjustment between channels corresponding to the second valve core 31b can also be achieved by rotating the second valve core 31b. It is understood that when the fluid control device has a larger number of flow channels or ports, in order to achieve the switching of conduction modes between multiple flow channels or ports, the fluid control device may also include three or more valve cores, and the present invention does not limit this.

[0089] Both the first chamber 401 and the second chamber 402 have openings located on the surface of the main housing 40. To facilitate the assembly of the pump assembly 20 and the valve assembly 30, the first mounting port K1 of the first chamber 401 and the second mounting port K2 of the second chamber 402 are respectively located on different surfaces of the main housing 40. Figure 1 As shown, the openings of the first chamber 401 and the second chamber 402 are respectively located on opposite sides of the main housing 40 in the height direction. At this time, the main housing 40 includes a cavity shell 45 and a bottom cover. The bottom cover and the cavity shell 45 can be sealed together by welding or other processes. For example, it includes a first bottom cover 42 and a second bottom cover 43. Each flow channel and chamber can be located in the cavity shell 45. The first bottom cover 42 and the second bottom cover 43 are sealed together with the cavity shell 45. For example, the sealing connection can be achieved by welding, bonding or sealing rings.

[0090] In some embodiments, the cavity housing 45 includes a cavity housing sidewall and a cavity housing top wall. A portion of the cavity housing sidewall and the cavity housing top wall form at least a portion of the wall of the first chamber 401. The cavity housing sidewall and the cavity housing top wall are an integral structure. The cavity housing top wall and the first mounting port are located on the same side of the main housing 40. This configuration facilitates reducing assembly errors between the valve assembly 30 and the corresponding drive component 13, improves the strength of the cavity housing 45, and ensures that the valve assembly 30 and the corresponding drive components of the pump assembly 20 are located on the same side of the main housing 40.

[0091] In a specific implementation, the main housing 40 includes a first end S1 and a second end S2, which are arranged opposite each other along the height direction of the main housing 40. The first mounting port K1 of the first chamber 401 is located at the first end S1, and the second mounting port K2 of the second chamber 402 is located at the second end S2. The drive assembly 100 is located on the side of the first end S1 away from the second end S2. With this arrangement, the pump assembly 20 can be assembled with the main housing 40 on one side, and the valve assembly 30 can be assembled with the main housing 40 from the other side. This facilitates the placement of the drive components of the pump assembly 20 and the valve assembly 30 on the same side, enabling the integration of multiple drive components. When there are at least two valve assemblies 30, all valve assemblies 30 can be installed on the same side of the main housing 40 to ensure a unified assembly reference. Subsequently, all pump assemblies 20 can be installed from the other side of the main housing 40 to reduce assembly errors and better achieve coaxiality between at least two valve assemblies 30 and their corresponding drive components 13. It is understood that the first mounting port K1 of the first chamber 401 and the second mounting port K2 of the second chamber 402 can also be located on the same side of the main housing 40, so that the pump assembly 20 and the valve assembly 30 are both assembled from the same side of the main housing. This invention does not limit this.

[0092] Further reading Figures 16 to 26In some embodiments, when each pump assembly 20 further includes an isolation sleeve 23, and the isolation sleeve 23 is sealed to the first housing 11, for example, when the isolation sleeve 23 is injection molded as an integral structure with the first housing 11 or is separately disposed from the first housing 11, the isolation sleeve 23 can be injection molded as an integral structure with the main housing 40; or when the isolation sleeve 23 is injection molded as an integral structure with the first housing 11 or is separately disposed from the first housing 11, the isolation sleeve 23 is separately disposed from the main housing 40, and one side of the isolation sleeve 23 in the thickness direction is sealed to the main housing 40 by a sealing ring, which can be an O-ring or an X-ring. Through the above configuration, the isolation sleeve 23 and the main housing 40 can be limited and sealed together. In this case, the stator assembly 130 can be injection molded as an integral structure with the first housing 11, or the stator assembly 130 and the first housing 11 can be separately disposed and assembled together.

[0093] In specific implementation, to achieve a sealed connection between the isolation sleeve 23 and the first housing 11 and the main housing 40, the fluid control device 1 may optionally include a sealing ring. When the isolation sleeve 23 and the first housing 11 are separately configured, one of the sealing rings can be sandwiched between the isolation sleeve 23 and the first housing 11 on one side of the thickness direction; when the isolation sleeve 23 and the main housing 40 are separately configured, one of the sealing rings can be sandwiched between the isolation sleeve 23 and the main housing 40 on the other side of the thickness direction. This achieves the sealing performance of the fluid control device 1, reduces fluid leakage, and can reduce or prevent fluid from entering the stator assembly, thus protecting the stator assembly.

[0094] Further reading Figure 12 and Figure 26 In some embodiments, the pump assembly 20 further includes a pump cover 24, which is sealed to the isolation sleeve 23. Specifically, the pump cover 24 may be welded to the isolation sleeve 23. The rotor assembly 22 is located in the space formed between the pump cover 24 and the isolation sleeve 23. The pump cover 24 has a first port 241 and a second port 242. The rotor assembly 22 is capable of driving fluid to flow between the first port 241 and the second port 242. At least a portion of the pump cover 24 is located in the first chamber 401 and the pump cover 24 is sealed to the main housing 40. The first port 241 communicates with the first channel 404, and the second port 242 communicates with the second channel 405. In a specific implementation, the pump assembly 20 has a pump chamber 201, a first channel 202 and a second channel 203, and a pump cover 24 forms at least a portion of the wall of the pump chamber 201. The first channel 202 and the second channel 203 may also be located in the pump cover 24. The first port 241 is located in the first channel, and the second port 242 is located in the second channel. At least a portion of the first channel 202 is located in the first orifice 404, and at least a portion of the second channel 203 is located in the second orifice 405.

[0095] To achieve a sealed connection between the pump cover 24 and the main housing 40, in some embodiments, such as Figure 26 As shown, a sealing ring may be sandwiched between the pump cover 24 and the main housing 40, or the pump cover 24 and the main housing 40 may be injection molded as a single structure. In this document, the two structural components forming a single structure may be achieved through injection molding or other processes; this invention does not limit the specific methods used.

[0096] Please refer to further information. Figures 1 to 8 To control the drive component 1 in the drive assembly 100, in some embodiments, the fluid control device 1 further includes a control element 15 and a connection terminal 16. The control element includes several electronic components, such as resistors, capacitors, inductors, or integrated circuits. The control element 15 is located in the first receiving cavity 101. At least a portion of the connection terminal 16 is located outside the first receiving cavity, for example... Figures 1 to 5 As shown, the connection terminal 16 is located on the side of the second housing 12 opposite to the first receiving cavity 101, and the connection terminal 16 is integrally injection molded with the second housing 12. The connection terminal 16 is electrically connected to the control element 15, and at least two drive components 13 are electrically connected to the control element 15. With this configuration, control of at least two drive components 13 can be achieved using only one control element 15, saving space and reducing the cost of the drive assembly 100. Furthermore, it can be connected to external electrical equipment using a single terminal 16, simplifying the operation of the fluid control device 1. To facilitate control of multiple drive components by a single control unit 15, in some embodiments, at least a portion of the first stator assembly 130a, at least a portion of the second stator assembly 130b, at least a portion of the third stator assembly 130c, at least a portion of the first motor 132a, and at least a portion of the second motor 132b are all located in the first receiving cavity 101, and the first stator assembly 130a, the second stator assembly 130b, the third stator assembly 130c, the first motor 132a, and the second motor 132b are all electrically connected to the control unit 15. The connection terminal 16 can be electrically connected to an external wiring harness structure, thereby enabling the control component 15 to control the rotation of the motor, which in turn causes the valve core in the valve assembly to rotate. Furthermore, the control component 15 can also control the power supply to the stator assembly. When the control component 15 controls the stator assembly to be energized, the stator assembly generates a magnetic field, causing the rotor assembly to rotate under the action of the magnetic field. This causes the fluid to flow in the first and second channels under the action of the centrifugal force of the impeller assembly, thereby driving the fluid to flow in the valve assembly and realizing the reversing and / or flow regulation of the fluid through the valve assembly.

[0097] like Figure 25As shown, the drive component including the stator assembly 130 is defined as the first drive component. The first drive component also includes a pump housing 135, a transition terminal 134 connected to the pump housing 135, and a connecting plate 136. The stator assembly 130 and the first housing 11 are separately disposed. At least a portion of the stator assembly 130 and the connecting plate are located in the chamber of the pump housing 135. The pump housing 135 is sealed to the first housing 11, for example, in... Figure 25 In this configuration, the pump housing 135 can be sealed to the first housing 11 via a sealing ring, or the pump housing 135 and the limiting portion 112 of the first housing 11 can be injection molded as a single unit. The stator assembly 130 includes a coil winding 1303, which is electrically connected to a pin in a transition terminal 134 via a conductive element in a connecting plate 136. A portion of the transition terminal 134 passes through the bottom wall portion 111 and is located in the first receiving cavity 101. The transition terminal 134 is electrically connected to the control component 15. It should be noted that the drive component in this document includes the stator assembly 130 or the motor 132, and may also include a lead structure or terminal structure for electrically connecting the stator assembly 130 or the motor 132 to the control component 15.

[0098] Please refer to further information. Figures 1 to 26 In some embodiments, the fluid control device 1 further includes a limiting component 50, which may be located in the fluid assembly 200. The pump assembly 20 includes a rotor assembly 22, a positioning shaft 222, and an isolation sleeve 23. At least a portion of the rotor assembly 22 is sleeved with the stator assembly 130. The isolation sleeve 23 covers a portion of the outer periphery of the rotor assembly 22, and at least a portion of the isolation sleeve 23 is located between the stator assembly 130 and the rotor assembly 22. The positioning shaft 222 is sleeved inside the rotor assembly 22, and a first side of the positioning shaft 222 in the axial direction is limited by the isolation sleeve 23. The limiting component 50 is located near a second side of the positioning shaft 222 in the axial direction, and the limiting component 50 is limited by the rotor assembly 22, for example, the limiting component 50 abuts against the rotor assembly 22. In this embodiment, the axial direction of the positioning shaft 222 is parallel to or coincides with the height direction of the fluid control device. With the above settings, both sides of the positioning shaft 222 in the axial direction can be limited, which improves the axial movement of the positioning shaft 222, thereby improving the axial movement of the rotor assembly 22 and reducing the noise of the pump assembly 20.

[0099] In some embodiments, the rotor assembly 22 includes a magnetic assembly 223 and an impeller assembly 221. At least a portion of the impeller assembly 221 and the magnetic assembly 223 are arranged along the axial direction of the rotor assembly 22. At least a portion of the magnetic assembly 223 is sleeved on the inner surface of the stator assembly 130, such that at least a portion of the magnetic assembly 222 can be located within the periphery of the magnetic field of the stator assembly 130. The isolation sleeve 23 includes an end wall portion 231, a connecting portion 232, and a peripheral wall portion 233. The extending direction of the end wall portion 231 is parallel to that of the rotor assembly 22. The axial directions intersect, the end wall portion 231 is disposed near the first housing 11, the peripheral wall portion 233 protrudes from the end wall portion 231, and along the radial direction of the rotor assembly 22, at least a portion of the peripheral wall portion 233 is located between the rotor assembly 22 and the stator assembly 130; along the axial direction of the rotor assembly 22, at least a portion of the connecting portion 232 protrudes from the end wall portion 231 toward the rotor assembly 22, one side of the positioning shaft 222 is limited by the connecting portion 232, and the magnetic component 223 is located between the connecting portion 232 and the limiting component 50.

[0100] like Figure 26 As shown, in some embodiments, the pump assembly 20 further includes a pump cover 24, at least a portion of which is located on the outer periphery of the impeller assembly 221 and at least a portion of which is located in the first chamber 401. At least a portion of the limiting assembly 50 is located on the pump cover 24, and the limiting assembly 50 has a groove 521. The end of the second side of the positioning shaft 222 is located in the groove 521 and abuts against the bottom wall of the groove 521. Through the above arrangement, the isolation sleeve 23 cooperates with the pump cover 24 to achieve axial limiting of the rotor assembly 22. Optionally, the pump cover 24 can be injection molded as an integral structure with the main housing 40; or the pump cover 24 can be separately disposed from the main housing 40 and limitedly connected, in which case a sealing ring is provided between the pump cover 24 and the main housing 40 to achieve sealing between the two.

[0101] like Figures 18 to 25 As shown, when the pump cover 24 and the main housing 40 are injection molded as a single structure, at least a portion of the impeller assembly 221 is located in the first chamber 401. The main housing 40 includes a first channel 404 and a second channel 405 communicating with the first chamber 401. Rotation of the impeller assembly 221 can drive fluid to flow between the first channel 404 and the second channel 405. The limiting assembly 50 includes a support portion 52 and at least two connecting ribs 51. The connecting ribs 51 are connected to the peripheral wall of the first channel 404. The connecting ribs 51 are distributed on the outer periphery of the support portion 52, and the support portion 52 is connected to the connecting ribs 51. A groove 521 is located in the support portion 52, and one end of the positioning shaft 222 is embedded in the groove 521. With the above arrangement, both fluid can be communicated in the first channel 404 and axial limiting of the positioning shaft 222 can be achieved.

[0102] Or, such as Figure 26As shown, when the pump cover 24 and the main housing 40 are separately disposed, the pump assembly 20 has a pump chamber 201, a first channel 202 and a second channel 203, and the pump cover 24 forms at least part of the wall of the pump chamber, wherein the first channel 202 and the second channel 203 are both connected to the pump chamber 201. When the limiting assembly 50 includes a support part 52 and at least two connecting ribs 51, the connecting ribs 51 are connected to the peripheral wall of the first channel 202 of the pump cover 24. The connecting ribs 51 are distributed on the outer peripheral side of the support part 52, and the support part 52 is connected to the connecting ribs 51. The groove 521 is located in the support part 52, and one end of the positioning shaft 222 is embedded in the groove 521.

[0103] In some embodiments, the rotor assembly 22 further includes a first bearing 251 and a second bearing 252, which are arranged along the axial direction of the rotor assembly 22. Along the axial direction of the rotor assembly 22, the first bearing 251 is located between the connecting portion 232 of the isolation sleeve 23 and the magnetic component 223, and the second bearing 252 is located between the magnetic component 223 and the limiting component 50. This arrangement facilitates the rotation of the magnetic element 223 and the impeller assembly 22 in the rotor assembly 22.

[0104] like Figure 26 As shown, in some embodiments, the limiting component 50 includes a first gasket 53 and a pump cover 24, with the first gasket 53 abutting between the second bearing 252 and the pump cover 24. Specifically, the pump cover 24 includes a support portion 52 and at least two connecting ribs 51, with the first gasket 53 abutting between the second bearing 252 and the support portion 52. This arrangement reduces wear between the pump cover 24 and the second bearing 252. In specific implementations, the positioning shaft 222 can be injection molded integrally with the isolation sleeve 23, and / or the magnetic component 223, impeller component 221, first bearing 251, and second bearing 252 can be injection molded integrally, achieving stable connection between the structural components and simplifying the assembly process of the fluid control device.

[0105] In other embodiments, such as Figure 22As shown, the limiting component 50 includes a first limiting member 541, a second washer 542, and a third washer 543. The first limiting member 541 is fastened to the positioning shaft 222. Along the axial direction of the rotor assembly 22, the second washer 542 abuts between the first bearing 251 and the connecting portion 232. The first limiting member 541 includes a first flange portion 5411 and a columnar portion 5412. Along the axial direction of the first limiting member 541, at least a portion of the orthographic projection of the columnar portion 5412 is located inside the orthographic projection of the first flange portion 5411. The third washer 543 is limited between the first flange portion 5411 and the second bearing 252. With the above arrangement, when the electric pump device 20 is assembled with the main housing 40, the impeller assembly 22 of the electric pump device 20 can be set downwards (up and down direction in the figure). At this time, the impeller assembly 22 and other structures are limited by the limiting component 50, which facilitates the assembly of the electric pump device 20 with the main housing 40. In this embodiment, the positioning shaft 222 can be injection molded into an integral structure with the isolation sleeve 23, and / or the magnetic component 223, the impeller component 221, the first bearing 251 and the second bearing 252 can be injection molded into an integral structure, so as to achieve a stable connection between the structural components and facilitate the simplification of the assembly process of the fluid control device.

[0106] To achieve a secure connection between the first limiting member 541 and the positioning shaft 222, in some embodiments, the first limiting member 541 has a first threaded portion located on the columnar portion 5412, and the positioning shaft 222 has a second threaded portion, with the first threaded portion and the second threaded portion being threadedly connected. Alternatively, the first limiting member 541 and the positioning shaft 222 can also be riveted together.

[0107] In other embodiments, such as Figure 23As shown, at least a portion of the first bearing 251 is sleeved between the outer periphery of the positioning shaft 222 and the support portion 52 of the isolation sleeve 23. Along the axial direction of the rotor assembly 22, the limiting component 50 is located between the magnetic assembly 223 and the impeller assembly 221. The limiting component 50 includes a second limiting member 551 and a fourth gasket 552. The second limiting member 551 is limited and sealed to the isolation sleeve 23, for example, the second limiting member 551 is welded to the isolation sleeve 23, and the second limiting member 551 is located on the side of the magnetic assembly 223 away from the connecting portion 232. The second bearing 252 is sleeved between the outer periphery of the positioning shaft 222 and the second limiting member 551. Along the axial direction of the rotor assembly 22, the fourth gasket 552 abuts against the second bearing 252 and the magnetic assembly 223. Specifically, the second limiting member 551 includes a second flange portion 5511 and a second columnar portion 5512. Along the axial direction of the second limiting member 551, at least a portion of the orthographic projection of the second columnar portion 5512 is located inside the orthographic projection of the second flange portion 5511. The second flange portion 5511 is sealed to the isolation sleeve 23. In a specific implementation, in this embodiment, the positioning shaft 222 and the magnetic assembly 223 can be injection molded as a single unit, the isolation sleeve 23 and the first bearing 251 can be injection molded as a single unit, and the impeller assembly 221 is assembled to the positioning shaft 222. Through the above configuration, axial limiting of the rotor assembly 22 can be achieved.

[0108] Furthermore, such as Figures 27 to 44 As shown, a fluid control device 1 according to another embodiment of the present invention is illustrated, which is related to... Figures 1 to 26 The structure of the fluid control device shown is similar, wherein the arrangement of the first housing 11, stator assembly 130, rotor assembly 22, isolation sleeve 23, positioning shaft 222, and main housing 40 is also similar. Figures 1 to 26 The setup shown is the same or similar. The difference between the fluid control devices provided in the two embodiments is that the drive assembly 100 includes four drive components 13, two of which include stator assemblies and the other two include motors. The fluid subassemblies LK provided in the embodiments of the present invention include four fluid subassemblies LK, two of which include pump assemblies 20 and the other two include valve assemblies 30.

[0109] For driver component 100, combined with Figures 18 to 26 29 to Figure 31 , Figures 34 to 36The drive assembly 100 further includes a first housing 11 and a second housing 12. The drive assembly 100 has a first receiving cavity 101. The first housing 11 and the second housing 12 form at least a portion of the wall of the first receiving cavity 101. In this embodiment, the second housing 11 includes a top cover portion. The top cover portion and the bottom wall portion 111 are disposed opposite each other along the height direction of the drive assembly 100. The first housing 11 and the second housing 12 are fastened together to form the first receiving cavity 101. At least a portion of at least two drive components 13 are located in the first receiving cavity 101, so that at least two drive components 13 are integrated into one drive assembly 100. Compared with setting multiple drive assemblies separately, this not only reduces the number of leads but also reduces the space occupied by the drive assembly 100. Optionally, all of the drive components 13 may be limited and connected to the first housing 11, or a portion of the drive components 13 may be limited and connected to the first housing 11. The present invention does not limit this.

[0110] In the drive assembly 100, the first housing 11 includes a bottom wall portion 111, a limiting portion 112, and a peripheral sidewall 113. The peripheral sidewall 113, the bottom wall portion 111, and the limiting portion 112 are connected. For example, the peripheral sidewall 113, the bottom wall portion 111, and the limiting portion 112 can be injection molded into an integral structure, welded together, or limited by fasteners or the like. At least a portion of the limiting portion 112 protrudes from the bottom wall portion 111 along the height direction of the drive assembly 100. The bottom wall portion 111 and the peripheral sidewall 113 form a portion of the wall of the first receiving cavity 101. At least one drive component 13 includes a stator assembly 130. The drive component including the stator assembly 130 is defined as the first drive component, and at least a portion of the first drive component is limitedly connected within the limiting portion 112. At least a portion of the stator assembly 130 included in the first driving component is located within the limiting portion 112. Alternatively, the first driving component may also include a pump housing, with at least a portion of the stator assembly 130 located within the cavity of the pump housing. For example, the stator assembly 130 may be injection molded and fixed to the pump housing or assembled into the cavity of the pump housing as an insert. In this case, at least a portion of the pump housing or the pump housing and the stator assembly 130 as a whole is located within the limiting portion 112. By limiting and connecting at least a portion of the first driving component within the limiting portion 112, it is convenient to integrate at least two stator assemblies 130 in one driving component 100. Compared to setting multiple driving devices, the fluid control device provided by the embodiments of the present invention facilitates reducing the space occupied by the driving component 100 and improving the integration degree of the driving component 100.

[0111] In this embodiment, the drive assembly 100 includes four drive components 13. Along the height direction of the drive assembly 100, there is a gap between the orthographic projections of the four drive components 13. Two of the drive components 13 include stator assemblies 130, and both stator assemblies 130 can be limited and connected to corresponding limiting portions 112 and are located within the corresponding limiting portions 112. Alternatively, in some other embodiments, one of the drive components 13 of the drive assembly 100 includes a stator assembly 130, while the other drive components can be motors or other drive components, thereby achieving the integration of different types of drive components 13.

[0112] To facilitate the positioning of the stator assembly 130, in some embodiments, at least a portion of the positioning portion 112 extends from the bottom wall portion 111 in a direction away from the first receiving cavity 101. At this time, at least a portion of the positioning portion 112 extends from the bottom wall portion 111 in a direction close to the fluid assembly, and at least a portion of the positioning portion 112 protrudes from the bottom wall portion 111 in a direction away from the second housing 12. Optionally, the stator assembly 130 can be injection molded to the limiting part 112. In this context, injection molding means molding it into an integral structure. Specifically, the stator assembly 130 can be used as an insert and integrally injection molded with the first housing 11, so that the stator assembly 130 and the limiting part 112 are injection molded into an integral structure. In this case, an electrical connection wire can be led out from the stator assembly 130 during injection molding, which can then be electrically connected to the control component. Alternatively, the limiting part 112 includes a mounting cavity QS, at least a portion of the stator assembly 130 is located in the mounting cavity QS, and the stator assembly 130 and the first housing 11 are limited and connected by fasteners or other means. With the above configuration, it is convenient to limit the stator assembly 130 and the limiting part 112. When at least two drive components 13 include stator assemblies 130, all stator assemblies 130 and limiting portions 112 can be injection molded into an integral structure, or all stator assemblies 130 can be assembled into the mounting cavity QS formed by the limiting portions 112, or a portion of stator assemblies 130 and limiting portions 112 can be injection molded into an integral structure, and another portion of stator assemblies 130 and limiting portions 112 can be injection molded into an integral structure.

[0113] Or such as Figure 29As shown, to realize the function of the driving component, the driving assembly of this embodiment of the invention further includes a control component 15, which can be a circuit board. The driving component including the stator assembly 130 is defined as the first driving component. The first driving component also includes a pump housing 135, a transition terminal 134 connected to the pump housing 135, and a connecting plate 136. The stator assembly 130 and the first housing 11 are separately disposed. At this time, the stator assembly 130 is assembled into the mounting cavity QS formed by the limiting part 112. At least a part of the stator assembly 130 and the connecting plate 136 are located in the cavity of the pump housing 135. The pump housing 135 is sealed to the first housing 11. For example, the pump housing 135 can be sealed to the first housing 11 by a sealing ring, or the pump housing 135 and the limiting part 112 of the first housing 11 can be injection molded into an integral structure. The stator assembly 130 includes a coil winding 1303, which is electrically connected to a pin in a transition terminal 134 via a conductive element in a connecting plate 136. A portion of the transition terminal 134 passes through the bottom wall portion 111 and is located in the first receiving cavity 101. The transition terminal 134 is electrically connected to the control element 15. It should be noted that the drive component described herein includes the stator assembly 130 or the motor 132. The drive component may also include a lead wire structure or a terminal structure that enables the control element 15 to be electrically connected to the stator assembly 130 or the motor 132.

[0114] To achieve electrical connection between the stator assembly 130 and the control unit 15, a metal conductive structure can be provided in the first housing 11. This metal conductive structure can be injection molded integrally with the first housing 11, so that the metal conductive structure is embedded in the first housing 11. The output terminal 1304 of the stator assembly 130 can use insulation displacement connectors (IDCs), in which case it can be electrically connected to the control unit 15 through the IDC pins.

[0115] In some embodiments, such as Figure 36 As shown, the fluid control device may further include an isolation sleeve 23, a portion of which is located on the inner circumferential side of the stator assembly 130. Optionally, the isolation sleeve 23 may be injection molded integrally with the first housing 11, in which case the stator assembly 130 may be injection molded integrally with the limiting portion 112, or the stator assembly 130 may be located within the mounting cavity QS of the limiting portion 112. Or as... Figures 19 to 24As shown, the isolation sleeve 23 and the stator assembly 130 are injection molded as a single unit, or at least a portion of the stator assembly 130 is located within the cavity formed by the isolation sleeve 23. In this case, the isolation sleeve 23 and the stator assembly 130 are separately disposed from the first housing 11 and sealed together. A sealing ring is provided between the integral structure formed by the isolation sleeve 23 and the stator assembly 130 and the first housing 11. By clamping the sealing ring, a sealing arrangement is achieved between the integral structure and the first housing 11. Through the above arrangement, the isolation sleeve 23 and the first housing 11 can be positioned and sealed together.

[0116] In specific implementation, when the stator assembly 130 and the limiting part 112 are injection molded as an integral structure, the isolation sleeve 23 can be injection molded as an integral structure with the first housing 11, or the isolation sleeve 23 and the first housing 11 can be separately arranged and sealed together. When the stator assembly 130 is assembled into the mounting cavity QS of the limiting part 112, the isolation sleeve 23 can be injection molded as an integral structure with the first housing 11, or the isolation sleeve 23 and the first housing 11 can be separately arranged and sealed together, or the isolation sleeve 23 and the stator assembly 130 can be injection molded as an integral structure, and the isolation sleeve 23 and the stator assembly 130 can be separately arranged and sealed together with the first housing 11 as a whole. When there are at least two stator assemblies 130, the limiting connection methods between different stator assemblies 130 and the first housing 11 can be the same or different, and the connection methods between the isolation sleeve 23 and the first housing 11 corresponding to different stator assemblies 130 can be the same or different.

[0117] like Figure 25 As shown, the drive component including the stator assembly 130 is defined as the first drive component. The first drive component also includes a pump housing 135, a transition terminal 134 connected to the pump housing 135, and a connecting plate 136. The stator assembly 130 and the first housing 11 are separately disposed. At least a portion of the stator assembly 130 and the connecting plate are located in the chamber of the pump housing 135. The pump housing 135 is sealed to the first housing 11, for example, in... Figure 13 In this configuration, the pump housing 135 can be sealed to the first housing 11 via a sealing ring, or it can be as follows: Figure 14 As shown, the pump housing 135 and the limiting portion 112 of the first housing 11 are injection molded as a single unit. The stator assembly 130 includes a coil winding 1303, which is electrically connected to a pin in the transition terminal 134 via a conductive element in the connecting plate 136. A portion of the transition terminal 134 passes through the bottom wall portion 111 and is located in the first receiving cavity 101. The transition terminal 134 is electrically connected to the control component 15. It should be noted that the drive component in this document includes the stator assembly 130 or the motor 132, and may also include a lead structure or terminal structure for electrically connecting the stator assembly 130 or the motor 132 to the control component 15.

[0118] For the fluid assembly 200, the fluid assembly 200 includes a main housing 40, the main housing 40 includes a cavity shell 45 and a flow channel plate 44, the flow channel plate 44 can be connected between two cavity shells 45, the main housing 40 has a first chamber 401, a second chamber 402, a first channel 404, a second channel 405, a plurality of flow channels 406 and a connecting channel 407, the first channel 404 and the second channel 405 are both connected to the first chamber 401, at least a portion of the pump assembly 20 is located in the first chamber 401, at least a portion of the valve assembly 30 is located in the second chamber 402, and the first channel 404 corresponding to one of the flow channels 406 located on the outer periphery of one of the pump assembly 20 is connected to one of the flow channels 406 located on the outer periphery of one of the valve assembly 30.

[0119] To enable fluid flow within the fluid control device 1, in some embodiments, at least a portion of the main housing 40 is located on the side of the first housing 11 opposite to the first receiving cavity 101, such as... Figure 27 As shown, at least a portion of the main housing 40 is located on the side of the first housing 11 opposite to the second housing 12. The main housing 40 also includes a connecting pipe 41, which may be arranged circumferentially along the main housing 40, or the connecting pipe 41 may be integrated on at least one mounting surface.

[0120] In this embodiment of the invention, the pump assembly 20 includes a rotor assembly 22, and an isolation sleeve 23 of the fluid control device is provided on the outer periphery of the rotor assembly 22. By providing the isolation sleeve 23, the stator assembly 130 and the corresponding rotor assembly 22 can be isolated from each other, preventing working fluid from entering the space where the stator assembly 130 is located. The rotor assembly 22 includes an impeller assembly 221 and a magnetic assembly 223. The pump assembly 20 also includes a positioning shaft 222. The impeller assembly 221 is sleeved on the outer periphery of the positioning shaft 222, and at least a portion of the impeller assembly 221 can be located in the first chamber 401. At least a portion of the first channel 404 is arranged with the impeller assembly along the height direction of the pump assembly 20. The second channel 405 corresponds to the position of the impeller assembly 221. Optionally, at least a portion of the wall of the first channel 404 can be coaxially arranged with the rotating shaft of the impeller assembly 221. The opening of the second channel 405 is located at the circumferential edge of the impeller assembly 221. Fluid can enter the impeller assembly from the first channel 404. Under the action of the centrifugal force of the impeller assembly, the fluid is discharged from the second channel 405. At this time, the first channel 404 can be the inlet channel of the pump assembly 20, and the second channel 405 can be the outlet channel of the pump assembly 20.

[0121] In some embodiments, the main housing 40 has a flow channel plate 44 and a cavity housing 45. The cavity housing 45 and the flow channel plate 44 are injection molded as an integral structure. The first chamber 401, the second chamber 402, and the flow channel 406 are located in the cavity housing 45, and the connecting channel 407 is located in the flow channel plate 44. At least a portion of the flow channel plate 44 is connected between two fluid sub-assemblies LK. For example, the flow channel plate 44 can be connected between the pump assembly 20 and the valve assembly 30, or the flow channel plate 44 can also be connected between two valve assemblies 30. In this embodiment of the invention, by integrating the flow channel plate 44 and the cavity housing 45 into one piece, it is easy to reduce the pipeline connections between the cavities 45 and improve the integration level of the fluid control device. Furthermore, multiple flow channels 406 are distributed on the outer periphery of the second chamber 402. One flow channel 406 is connected to one of the first channel 404 and the second channel 405 through a connecting channel 407. The valve core 30 includes a guiding cavity 31, which can connect at least two flow channels 406. The extending directions of the interconnecting connecting channel 407, the extending directions of the flow channels 406, and the extending directions of the first channel 404 or the second channel 405 intersect.

[0122] Optionally, the pump assembly 20 may further include a pump cover 24, which is sealed to the isolation sleeve 23. Specifically, the pump cover 24 may be welded to the isolation sleeve 23. The rotor assembly 22 is located in the space formed between the pump cover 24 and the isolation sleeve 23. The pump cover 24 has a first port 241 and a second port 242. The rotor assembly 22 is capable of driving fluid to flow between the first port 241 and the second port 242. At least a portion of the pump cover 24 is located in the first chamber 401 and the pump cover 24 is sealed to the main housing 40. The first port 241 communicates with the first channel 404, and the second port 242 communicates with the second channel 405. In a specific implementation, the pump assembly 20 has a pump chamber 201, a first channel 202 and a second channel 203, and a pump cover 24 forms at least a portion of the wall of the pump chamber 201. The first channel 202 and the second channel 203 may also be located in the pump cover 24. The first port 241 is located in the first channel, and the second port 242 is located in the second channel. At least a portion of the first channel 202 is located in the first orifice 404, and at least a portion of the second channel 203 is located in the second orifice 405.

[0123] To achieve a sealed connection between the pump cover 24 and the main housing 40, in some embodiments, such as Figure 26 As shown, a sealing ring may be sandwiched between the pump cover 24 and the main housing 40, or the pump cover 24 and the main housing 40 may be injection molded as a single structure. In this document, the two structural components forming a single structure may be achieved through injection molding or other processes; this invention does not limit the specific methods used.

[0124] To facilitate fluid flow within the main housing 40, in some embodiments, the first chamber 401 includes a first sub-chamber A1 and a second sub-chamber A2, the second chamber 402 includes a third sub-chamber A3 and a fourth sub-chamber A4, two pump assemblies are defined as a first pump assembly 20d and a second pump assembly 20e, and two valve assemblies are defined as a first valve assembly 30c and a second valve assembly 30e. At least a portion of the first pump assembly 20d is located in the first sub-chamber A1, at least a portion of the second pump assembly 20e is located in the second sub-chamber A2, at least a portion of the first valve assembly 30c is located in the third sub-chamber A3, and at least a portion of the second valve assembly 30d is located in the fourth sub-chamber A4; wherein, both the first sub-chamber A1 and the second sub-chamber A3 are in communication with the third sub-chamber A3. This arrangement facilitates fluid interaction between the two pump assemblies and one of the valve assemblies within the main housing 40.

[0125] Both the first chamber 401 and the second chamber 402 have openings located on the surface of the main housing 40. To facilitate the assembly of the pump assembly 20 and the valve assembly 30, the first mounting port of the first chamber 401 and the second mounting port of the second chamber 402 are respectively located on different sides of the main housing 40, such as... Figure 27 As shown, the openings of the first chamber 401 and the second chamber 402 are respectively located on opposite sides of the main housing 40 in the height direction. At this time, the main housing 40 includes a cavity shell 45 and a bottom cover. The bottom cover and the cavity shell 45 can be sealed together by welding or other processes.

[0126] In some embodiments, the cavity housing 45 includes a cavity housing sidewall and a cavity housing top wall. A portion of the cavity housing sidewall and the cavity housing top wall form at least a portion of the wall of the first chamber 401. The cavity housing sidewall and the cavity housing top wall are an integral structure. The cavity housing top wall and the first mounting port are located on the same side of the main housing 40. This configuration facilitates reducing assembly errors between the valve assembly 30 and the corresponding drive component 13, improves the strength of the cavity housing 45, and ensures that the valve assembly 30 and the corresponding drive components of the pump assembly 20 are located on the same side of the main housing 40.

[0127] In a specific implementation, the main housing 40 includes a first end S1 and a second end S2, which are arranged opposite each other along the height direction of the main housing 40. The first mounting port of the first chamber 401 is located at the first end S1, and the second mounting port of the second chamber 402 is located at the second end S2. The drive assembly 100 is located on the side of the first end S1 away from the second end S2. With this arrangement, the pump assembly 20 can be assembled with the main housing 40 on one side, and the valve assembly 30 can be assembled with the main housing 40 from the other side. This facilitates the placement of the drive components of the pump assembly 20 and the valve assembly 30 on the same side, enabling the integration of multiple drive components. When there are at least two valve assemblies 30, all valve assemblies 30 can be installed on the same side of the main housing 40 to ensure a unified assembly reference. Subsequently, all pump assemblies 20 can be installed from the other side of the main housing 40 to reduce assembly errors and better achieve coaxiality between at least two valve assemblies 30 and their corresponding drive components 13. It is understood that the first mounting port of the first chamber 401 and the second mounting port of the second chamber 402 can also be located on the same side of the main housing 40, so that the pump assembly 20 and the valve assembly 30 are both assembled from the same side of the main housing. This invention does not limit this.

[0128] The valve core structures in the two valve assemblies 30 provided in this embodiment of the invention are similar, including a first valve assembly 30c and a second valve assembly 30d. One valve core is defined as the first valve core 31c and the other as the second valve core 31d. The number of flow channels 406 located on the outer periphery of the first valve core 31c can be at least five, and the number of flow channels 406 located on the outer periphery of the second valve core 31d can be at least five. Further, one pump assembly 20 is defined as the first pump assembly 20d, and the other as the second pump assembly 20e. The first channel 404d corresponding to the first pump assembly 20d and the first channel 404e corresponding to the second pump assembly 20e are both connected to the third sub-cavity A3 through a connecting channel 407. The flow channel 406 located on the outer periphery of the first valve core 31c is defined as the first flow channel 4061. The first flow channel 4061 is located on the side wall of the third sub-cavity A3, outside the second valve core 31d. The peripheral flow channel 406 is the second flow channel 4062, located on the side wall of the fourth sub-cavity A4. In this embodiment, there are five first flow channels 4061 and five second flow channels 4062. Of course, the number of first flow channels 4061 and second flow channels 4062 can also be set according to user needs, for example, three, four, six, seven or more. The number of first flow channels 4061 and second flow channels 4062 can be the same or different. Through the above settings, a pump assembly 20 and a valve assembly 30 can cooperate to achieve fluid control.

[0129] To facilitate the integration of the drive components of the pump assemblies and valve assemblies, in some embodiments, along the height direction of the fluid control device, the first pump assembly 20d and the second pump assembly 20e are located at the same height on the side opposite to the main housing 40, which facilitates assembly and installation with their respective stator assemblies. A portion of the valve assembly 30 is located at the same height as a portion of the pump assembly 20 to reduce the axial height of the fluid control device. Specifically, a portion of the first valve assembly 30c can be located at the same height as portions of the first pump assembly 20d and the second pump assembly 20e.

[0130] Furthermore, in some embodiments, the main housing 40 further includes a first connecting channel 407d and a second connecting channel 407e, the first connecting channel 407d connecting the first sub-cavity A1 and the third sub-cavity A3, and the second connecting channel 407e connecting the second sub-cavity A2 and the third sub-cavity A3; at least a portion of the first connecting channel 407d and at least a portion of the second connecting channel 407e are spaced apart along the circumferential direction of the wall of the third sub-cavity A3.

[0131] To better achieve fluid interaction between pump assembly 20 and valve assembly 30, such as Figure 36 and Figure 37 As shown, the main housing 40 includes a first channel 404 and a second channel 405. The first channel 404 can be the inlet channel of the pump assembly 20, and the second channel 405 can be the outlet channel of the pump assembly 20. In this embodiment, the first channel 404 includes a first sub-channel 404d and a second sub-channel 404e, and the second channel 405 includes a third sub-channel 405d and a fourth sub-channel 405e. The first sub-channel 404d and the third sub-channel 405d are both connected to the first sub-cavity A1, and the second sub-channel 404e and the fourth sub-channel 405e are both connected to the second sub-cavity A2. The first pump assembly 20d includes a first impeller assembly 221d, and the second pump assembly 20e includes... The device includes a second impeller assembly 221e. At least a portion of the wall of the first sub-channel 404d is coaxially arranged with the shaft of the first impeller assembly 221d. At least a portion of the opening of the third sub-channel 405d is located at the circumferential edge of the first impeller assembly 221d. At least a portion of the wall of the second sub-channel 404e is coaxially arranged with the shaft of the second impeller assembly 221e. At least a portion of the opening of the fourth sub-channel 405e is located at the circumferential edge of the second impeller assembly 221e. The first sub-channel 404d is connected to the third sub-cavity A3 through a first connecting channel 407d, and the second sub-channel 404e is connected to the third sub-cavity A3 through a second connecting channel 407e.

[0132] Combination Figures 27 to 44As shown, the first valve core includes at least three conducting chambers. The conducting chamber of the first valve core 31c can connect at least two first flow channels 4061 and isolate at least one first flow channel 4061. The conducting chamber of the second valve core 31d can connect at least two second flow channels 4062 and isolate at least one second flow channel 4062. Through the above configuration, multiple operating modes of the fluid control device can be realized. Flow channel isolation in this article means that after a flow channel passes through the corresponding valve core, it is not connected to any other flow channel.

[0133] The operating modes of the first valve assembly 30c are described below. The first flow channels corresponding to the first valve assembly 30c are defined as a first sub-flow channel P1, a second sub-flow channel P2, a third sub-flow channel P3, a fourth sub-flow channel P4, and a fifth sub-flow channel P5. The second sub-flow channel P2 communicates with the channel corresponding to the first pump assembly 20d, and the fourth sub-flow channel P4 communicates with the channel corresponding to the second pump assembly 20e. By adjusting the positions of the multiple first flow channels on the walls of the corresponding third sub-cavities A3, and the opening angles between the three conductive cavities of the first valve core 31c, the first valve assembly 30c of this embodiment of the invention has at least one of the following operating modes.

[0134] In the first working mode, such as Figure 41 As shown, the first valve core 31c is located in the first position. One of the conducting chambers of the first valve core 31c connects the first sub-channel P1 with the fourth sub-channel P4, another conducting chamber connects the second sub-channel P2 and the third sub-channel P3, and yet another conducting chamber isolates the fifth sub-channel P5.

[0135] In the second working mode, such as Figure 42 As shown, the first valve core 31c is located in the second position. One of the conducting chambers of the first valve core 31c connects the fifth sub-flow channel P5 with the fourth sub-flow channel P4, another conducting chamber connects the second sub-flow channel P2 and the third sub-flow channel P3, and yet another conducting chamber isolates the first sub-flow channel P1.

[0136] In the third working mode, such as Figure 43 As shown, the first valve core 31c is located in the third position. One of the conducting chambers of the first valve core 31c connects the third sub-flow channel P3 with the fourth sub-flow channel P4, another conducting chamber connects the second sub-flow channel P2 with the first sub-flow channel P1, and yet another conducting chamber isolates the fifth sub-flow channel P5.

[0137] In the fourth working mode, such as Figure 44 As shown, the first valve core 31c is located in the fourth position. One of the conducting chambers of the first valve core 31c connects the third sub-channel P3 and the fourth sub-channel P4, another conducting chamber connects the second sub-channel P2 and the fifth sub-channel P5, and yet another conducting chamber isolates the first sub-channel P1.

[0138] The operating mode of the second valve assembly 30d corresponding to the second flow channel provided in this embodiment of the invention can be the same as the operating mode of the first valve assembly 30c, and will not be described in detail here. The flow channels corresponding to the two valve assemblies can be connected by an external pipeline, or the flow channel can also be provided on the main housing 40, which will not be described in detail here.

[0139] Furthermore, the drive assembly 100 of the fluid control device 1 includes a first housing 11, a first stator assembly 130d, a second stator assembly 130e, a first motor 132c, and a second motor 132d. The first pump assembly 20d includes a first rotor assembly 22d, and the second pump assembly 20e includes a second rotor assembly 22e. The first rotor assembly 22d can be located within the magnetic field range of the first stator assembly 130d, and the second rotor assembly 22e can be located outside the magnetic field of the second stator assembly 130e. The first valve core 31c of the first valve assembly 30c is drivenly connected to the first motor 132c, and the second valve core 31d of the second valve assembly 30d is drivenly connected to the second motor 132d. The drive assembly 100 has a first receiving cavity 101, and a first housing 11 forms at least a portion of the wall of the first receiving cavity 101. At least a portion of the first stator assembly 130d, at least a portion of the second stator assembly 130e, at least a portion of the first motor 132c, and at least a portion of the second motor 132d are all located in the first receiving cavity 101.

[0140] Furthermore, the drive assembly 100 may also include a control element 15, which is located in the first receiving cavity 101. The first stator assembly 130d, the second stator assembly 130e, the first motor 132c, and the second motor 132d are all electrically connected to the control element 15. To reduce the area of ​​the control element 15, combined with... Figure 26As shown, along the outer periphery of the fluid control device, the first pump assembly 20d, the first valve assembly 30c, the second pump assembly 20e, and the second valve assembly 30d are arranged at intervals; the drive assembly 100 also includes a first gear assembly 133c and a second gear assembly 133d. The first motor 132c is driven by the first gear assembly 133c and the first valve core 31c, and the second motor 132d is driven by the second valve core 31d through the second gear assembly 133d. The first motor 132c and the second motor 132d are arranged along the first direction X. The first stator assembly 130d and the second stator assembly 130e are arranged along the second direction Y, and the first direction X and the second direction Y intersect. A portion of the first gear assembly 133c and a portion of the second gear assembly 133d are located between the first motor 132c and the second motor 132d, facilitating the centralized arrangement of the control sections of the first motor 132c and the second motor 133d. The output terminals of the first stator assembly 130d and the second stator assembly 130e are close to each other and located in the middle of the drive assembly 100. In this configuration, the control sections of the pump assembly 20 and the valve assembly 30 can be relatively concentrated, reducing the area of ​​the control component 15.

[0141] Furthermore, such as Figure 36 As shown, in some embodiments, the fluid control device 1 further includes a limiting component 50, which may be located in the fluid assembly 200. The pump assembly 20 includes a rotor assembly 22, a positioning shaft 222, and an isolation sleeve 23. At least a portion of the rotor assembly 22 is sleeved with the stator assembly 130. The isolation sleeve 23 covers a portion of the outer periphery of the rotor assembly 22, and at least a portion of the isolation sleeve 23 is located between the stator assembly 130 and the rotor assembly 22. The positioning shaft 222 is sleeved inside the rotor assembly 22, and a first side of the positioning shaft 222 in the axial direction is limited by the isolation sleeve 23. The limiting component 50 is located near a second side of the positioning shaft 222 in the axial direction, and the limiting component 50 is limited by the rotor assembly 22, for example, the limiting component 50 abuts against the rotor assembly 22. In this embodiment, the axial direction of the positioning shaft 222 is parallel to or coincides with the height direction of the fluid control device. With the above settings, both sides of the positioning shaft 222 in the axial direction can be limited, which improves the axial movement of the positioning shaft 222, thereby improving the axial movement of the rotor assembly 22 and reducing the noise of the pump assembly 20.

[0142] In some embodiments, the pump assembly 20 further includes a pump cover 24, at least a portion of which is located on the outer periphery of the impeller assembly 221 and at least a portion of which is located in the first chamber 401. A limiting component 50 is located at least a portion of the pump cover 24, and the limiting component 50 has a groove 521. The end of the second side of the positioning shaft 222 is located in the groove 521 and abuts against the bottom wall of the groove 521. This arrangement allows the isolation sleeve 23 to cooperate with the pump cover 24, achieving axial limiting of the rotor assembly 22. Optionally, the pump cover 24 can be injection molded integrally with the main housing 40; or the pump cover 24 can be separately disposed from the main housing 40 and connected with a limiting connection. In this case, a sealing ring is provided between the pump cover 24 and the main housing 40 to achieve sealing between the two.

[0143] In some embodiments, the rotor assembly 22 further includes a first bearing 251 and a second bearing 252, which are arranged along the axial direction of the rotor assembly 22. Along the axial direction of the rotor assembly 22, the first bearing 251 is located between the connecting portion 232 of the isolation sleeve 23 and the magnetic component 223, and the second bearing 252 is located between the magnetic component 223 and the limiting component 50. This arrangement facilitates the rotation of the magnetic element 223 and the impeller assembly 22 in the rotor assembly 22.

[0144] like Figure 26 As shown, in some embodiments, the limiting component 50 includes a first gasket 53 and a pump cover 24, with the first gasket 53 abutting between the second bearing 252 and the pump cover 24. Specifically, the pump cover 24 includes a support portion 52 and at least two connecting ribs 51, with the first gasket 53 abutting between the second bearing 252 and the support portion 52. This arrangement reduces wear between the pump cover 24 and the second bearing 252. In specific implementations, the positioning shaft 222 can be injection molded integrally with the isolation sleeve 23, and / or the magnetic component 223, impeller component 221, first bearing 251, and second bearing 252 can be injection molded integrally, achieving stable connection between the structural components and simplifying the assembly process of the fluid control device.

[0145] In other embodiments, such as Figure 22As shown, the limiting component 50 includes a first limiting member 541, a second washer 542, and a third washer 543. The first limiting member 541 is fastened to the positioning shaft 222. Along the axial direction of the rotor assembly 22, the second washer 542 abuts between the first bearing 251 and the connecting portion 232. The first limiting member 541 includes a first flange portion 5411 and a columnar portion 5412. Along the axial direction of the first limiting member 541, at least a portion of the orthographic projection of the columnar portion 5412 is located inside the orthographic projection of the first flange portion 5411. The third washer 543 is limited between the first flange portion 5411 and the second bearing 252. With the above arrangement, when the electric pump device 20 is assembled with the main housing 40, the impeller assembly 22 of the electric pump device 20 can be set downwards (up and down direction in the figure). At this time, the impeller assembly 22 and other structures are limited by the limiting component 50, which facilitates the assembly of the electric pump device 20 with the main housing 40. In this embodiment, the positioning shaft 222 can be injection molded into an integral structure with the isolation sleeve 23, and / or the magnetic component 223, the impeller component 221, the first bearing 251 and the second bearing 252 can be injection molded into an integral structure, so as to achieve a stable connection between the structural components and facilitate the simplification of the assembly process of the fluid control device.

[0146] To achieve a secure connection between the first limiting member 541 and the positioning shaft 222, in some embodiments, the first limiting member 541 has a first threaded portion located on the columnar portion 5412, and the positioning shaft 222 has a second threaded portion, with the first threaded portion and the second threaded portion being threadedly connected. Alternatively, the first limiting member 541 and the positioning shaft 222 can also be riveted together.

[0147] In other embodiments, such as Figure 23As shown, at least a portion of the first bearing 251 is sleeved between the outer periphery of the positioning shaft 222 and the support portion 52 of the isolation sleeve 23. Along the axial direction of the rotor assembly 22, the limiting component 50 is located between the magnetic assembly 223 and the impeller assembly 221. The limiting component 50 includes a second limiting member 551 and a fourth gasket 552. The second limiting member 551 is limited and sealed to the isolation sleeve 23, for example, the second limiting member 551 is welded to the isolation sleeve 23, and the second limiting member 551 is located on the side of the magnetic assembly 223 away from the connecting portion 232. The second bearing 252 is sleeved between the outer periphery of the positioning shaft 222 and the second limiting member 551. Along the axial direction of the rotor assembly 22, the fourth gasket 552 abuts against the second bearing 252 and the magnetic assembly 223. Specifically, the second limiting member 551 includes a second flange portion 5511 and a second columnar portion 5512. Along the axial direction of the second limiting member 551, at least a portion of the orthographic projection of the second columnar portion 5512 is located inside the orthographic projection of the second flange portion 5511. The second flange portion 5511 is sealed to the isolation sleeve 23. In a specific implementation, in this embodiment, the positioning shaft 222 and the magnetic assembly 223 can be injection molded as a single unit, the isolation sleeve 23 and the first bearing 251 can be injection molded as a single unit, and the impeller assembly 221 is assembled to the positioning shaft 222. Through the above configuration, axial limiting of the rotor assembly 22 can be achieved.

[0148] In summary, the fluid control device 1 provided by the embodiments of the present invention includes a drive assembly 100 and at least two fluid sub-assemblies LK. The drive assembly 100 includes at least two drive components 13, wherein at least one drive component 13 includes a stator assembly 130, at least a portion of which is limited and connected within a limiting portion 112 of the first housing 11. At least one fluid sub-assembly LK includes a pump assembly 20, which includes a rotor assembly 22. By setting the rotor assembly 22 within the magnetic field range of the corresponding stator assembly 130, and the drive component 13 being able to drive the corresponding fluid sub-assembly LK, the drive assembly 100 includes a drive component 13 that drives at least two fluid sub-assemblies LK. Compared to setting a separate drive device for each fluid sub-assembly LK, the fluid control device 1 provided by the embodiments of the present invention can reduce the space occupied by the drive assembly 100 and improve the integration level of the drive assembly 100. Furthermore, at least two fluid sub-components LK can also be integrated into a main housing 40, which facilitates the improvement of the integration of the fluid control device 1 and reduces the space occupied by the fluid control device 1. Moreover, by setting a limiting member, the positioning shaft 222 can be axially limited, thereby playing a good axial limiting role for structures such as the rotor assembly 22.

[0149] On the other hand, embodiments of the present invention also provide an electric pump device, comprising a stator assembly 130, a pump assembly 20, and a limiting assembly 50. The pump assembly 20 includes a rotor assembly 22, a positioning shaft 222, an isolation sleeve 23, and a pump cover 24. At least a portion of the rotor assembly 22 is sleeved onto the stator assembly 130. Optionally, at least a portion of the rotor assembly 22 is located inside the stator assembly 130, and the isolation sleeve 23 covers a portion of the outer periphery of the rotor assembly 22, with at least a portion of the isolation sleeve 23 located between the stator assembly 130 and the rotor assembly 22. The positioning shaft 222 is sleeved onto the inner side of the rotor assembly 22, and a first axial side of the positioning shaft 222 is limited by the isolation sleeve 23. The limiting assembly 50 is located near a second axial side of the positioning shaft 222 and abuts against the rotor assembly 22. This configuration facilitates axial limiting of the rotor assembly 22 and the positioning shaft 222. In this embodiment of the invention, the stator assembly 130, the pump assembly 20, and the limiting assembly 50 are... Figures 1 to 27 The stator assembly 130, pump assembly 20 and limit assembly 50 provided in any embodiment have the same or similar structures, and will not be described in detail.

[0150] In some embodiments, the rotor assembly 22 includes a magnetic assembly 223 and an impeller assembly 221. At least a portion of the impeller assembly 221 and the magnetic assembly 223 are arranged along the axial direction of the rotor assembly 22. At least a portion of the magnetic assembly 223 is sleeved on the inner surface of the stator assembly 130. The isolation sleeve 23 includes an end wall portion 231 and a connecting portion 232. The extending direction of the end wall portion 231 intersects the axial direction of the rotor assembly 22. The rotor assembly 22 includes a first bearing 251 and a second bearing 252, which are arranged along the axial direction of the rotor assembly 22. The first bearing 251 is located between the connecting portion 232 and the magnetic assembly 223, and the second bearing 252 is located between the magnetic assembly 223 and the limiting assembly 50. This arrangement facilitates stable rotation of the rotor assembly 22 and axial limiting of the rotor assembly 22.

[0151] like Figure 22 As shown, in some embodiments, the limiting assembly 50 includes a first limiting member 541, a second washer 542, and a third washer 543. The first limiting member 541 is fastened to the positioning shaft 222. Along the axial direction of the rotor assembly 22, the second washer 542 abuts between the first bearing 251 and the connecting portion 232. The first limiting member 541 includes a first flange portion 5411 and a columnar portion 5412. Along the axial direction of the first limiting member 541, at least a portion of the orthographic projection of the columnar portion 5412 is located inside the orthographic projection of the first flange portion 5411. The third washer 543 is limited between the first flange portion 5411 and the second bearing 252.

[0152] Or such as Figure 23As shown, in some embodiments, the limiting component 50 is located between the magnetic component 223 and the impeller component 221; the limiting component 50 includes a second limiting member 551 and a fourth gasket 552. The second limiting member 551 is limited and sealed to the isolation sleeve 23, and the second limiting member 551 is located on the side of the magnetic component 223 away from the connecting portion 232. The second bearing 252 is sleeved on the outer periphery of the positioning shaft 222 between the second limiting member 551. Along the axial direction of the rotor component 22, the fourth gasket 552 abuts against the second bearing 252 and the magnetic component 223.

[0153] In the electric pump device, the electric pump device may include a pump housing, which is disposed outside the stator assembly, and at least a portion of the housing is located on the side of the stator assembly opposite to the rotor assembly. The limiting method of the pump housing and the stator assembly is similar to the limiting method of the first housing 11 and the stator assembly 130 mentioned in any of the above embodiments. For example, the stator assembly 130 may be integrally injection molded with the pump housing or the stator assembly 130 may be disposed within the cavity of the pump housing. In specific implementations, when the stator assembly 130 and the pump housing are integrally injection molded, the isolation sleeve 23 may be integrally injection molded with the pump housing, or the isolation sleeve 23 may be separately disposed and sealed to the pump housing. When the stator assembly 130 is assembled into the mounting cavity QS of the pump housing, the isolation sleeve 23 may be integrally injection molded with the pump housing, or the isolation sleeve 23 may be separately disposed and sealed to the pump housing, or the isolation sleeve 23 and the stator assembly 130 may be integrally injection molded, and the isolation sleeve 23 and the stator assembly 130 may be integrally disposed and sealed to the pump housing. When the number of stator assemblies 130 is at least two, the limiting connection methods between different stator assemblies 130 and the first housing 11 can be the same or different, and the connection methods between the isolation sleeves 23 corresponding to different stator assemblies 130 and the first housing 11 can be the same or different.

[0154] On the other hand, combined with Figures 1 to 45 The present invention also provides a method for manufacturing a fluid control device 1000, the method for manufacturing a fluid control device 1000 comprising:

[0155] Step S110: Form drive component 100.

[0156] In some embodiments, step S100, forming the drive assembly 100, includes: providing a first housing 11 and at least two drive components 13. The first housing 11 has a first receiving cavity 101. The first housing 11 includes a bottom wall portion 111 and a limiting portion 112. The bottom wall portion 111 forms a portion of the wall of the first receiving cavity 101. At least a portion of the limiting portion 112 protrudes from the bottom wall portion 111. At least one drive component 13 includes a stator assembly 130. The step S100 also includes a limiting connection of at least a portion of the stator assembly 130 within the limiting portion 112. The limiting portion 112 protrudes from the bottom wall portion 112 along the height direction of the drive assembly 100, and the limiting portion 112 can extend in a direction away from the first receiving cavity 101.

[0157] In some embodiments, limiting the connection of at least a portion of the stator assembly 130 to the limiting portion 112 includes: using the stator assembly 130 as an injection-molded insert, and injection molding at least a portion of the stator assembly 130 into the limiting portion 112 as an integral structure through an injection molding process; or the limiting portion 112 includes a mounting cavity QS, and at least a portion of the stator assembly 130 is mounted in the mounting cavity QS and limited to the limiting portion 112 of the first housing 11. In this case, at least a portion of the output terminal 1304 in the stator assembly 130 is located in the first receiving cavity 101, which facilitates the electrical connection of the output terminal 1304 with the control element 15 in the drive assembly 100 or an external control element.

[0158] In some other embodiments, the fluid control device may also include an isolation sleeve 23. In this case, after at least a portion of the stator assembly 130 is limited and connected within the limiting portion 112, the isolation sleeve 23 and the first housing 11 may be injection molded into an integral structure, such that a portion of the isolation sleeve 23 is located inside the stator assembly 130. At this time, the isolation sleeve 23 is sealed and connected to the first housing 11, which facilitates the isolation of the stator assembly 130 from the outside world and prevents external moisture and other substances from affecting the stator assembly 130.

[0159] Step S120, forming at least a portion of the fluid assembly 200.

[0160] In this embodiment, step S300 forming the fluid assembly 200 includes providing at least two fluid sub-assemblies LK and providing a main housing 40.

[0161] In this embodiment, at least one fluid sub-component LK includes a pump assembly 20, such as Figures 1 to 26As shown, in this embodiment of the invention, the number of fluid sub-components LK is five, of which three fluid components include pump components 20, and the other two fluid components include valve components 30. In some other embodiments, the number of fluid sub-components LK can be two, both of which may include pump components 20, or one fluid sub-component LK may include pump components 20, and the other fluid sub-component LK may include valve components 30. The number of fluid sub-components LK can be set according to user needs, as can the number of pump components 20 and valve components 30.

[0162] The main housing 40 has a first chamber 401, a first channel 404, and a second channel 405 spaced apart, both of which communicate with the first chamber 401. In this case, step S120, forming at least a portion of the fluid assembly 200, may further include assembling the pump assembly 20 with the main housing 40 such that at least a portion of the pump assembly 20 is located in the first chamber 401, so that the rotation of the rotor assembly 22 can drive fluid to flow through the first channel 404 and the second channel 405. With the above arrangement, the pump assembly 20 can be positioned in the first chamber 401.

[0163] In specific implementations, when at least two fluid sub-assemblies LK each include a pump assembly 20, multiple pump assemblies 20 can be assembled with the main housing to form at least a portion of the fluid assembly 200. Specifically, the pump assembly 20 may include an isolation sleeve 23 and a rotor assembly 22. In this case, the step of forming the pump assembly 20 may be included before assembling the pump assembly 20 with the main housing 40. For example, the rotor assembly 22 may be fitted inside the isolation sleeve 23, so that the isolation sleeve 23 and the rotor assembly 22 are assembled into an integral structure to form the pump assembly 20, and then this integral structure is assembled with the main housing 40. Alternatively, when the pump assembly 20 also includes a pump cover, the isolation sleeve 23, the rotor assembly 22, and the pump cover 24 may be assembled into an integral structure first. Alternatively, the step of assembling the pump assembly 20 with the main housing 40 may also include assembling the isolation sleeve 23 and the rotor assembly 22 respectively to the main housing 40, and then sealing the isolation sleeve 23 with the main housing 40. Alternatively, when the pump assembly 20 also includes a limiting member 50, the limiting member 50 and the positioning shaft 222 can be fitted together as an integral structure, and then the integral structure can be assembled with the main housing 40; or, when the limiting member 50 is located in the main housing 40, the pump assembly 20 can be assembled with the main housing 40 to achieve axial limiting of the positioning shaft 222 and the rotor assembly 22 and other structures. This invention does not limit this.

[0164] In some embodiments, when at least one fluid sub-assembly LK includes a pump assembly 20, at least one fluid sub-assembly LK includes a valve assembly 30, the valve assembly 30 includes a valve core 31 and a valve core shaft 32, at least one drive component 13 includes a motor 132, and the main housing 40 also includes a bottom cover and a cavity housing 45, then in step S120, forming at least a portion of the fluid assembly 200 includes:

[0165] Step 1: Provide a main housing 40. The main housing 40 has a first chamber 401, a second chamber 402, a first channel 404, a second channel 405, and a plurality of flow channels 406. The first chamber 401 and the second chamber 402 are spaced apart. The first channel 404 and the second channel 405 are both connected to the first chamber 401.

[0166] Step 2: Assemble the pump assembly 20 with the main housing 40 such that at least a portion of the pump assembly 20 is located in a first chamber 401, so that the rotation of the rotor assembly 22 can drive fluid to flow through the first channel 404 and the second channel 405, thereby facilitating the driving function of the pump assembly 20 on the fluid.

[0167] Step 3: Assemble at least a portion of the valve assembly 30 into the corresponding chamber of the main housing 40, that is, assemble at least a portion of one valve assembly 30 into one second chamber 402 of the main housing 40, and make the valve assembly 30 and the main housing 40 in a limiting connection, so that the conducting cavity 31 of the valve core 31 can conduct at least two flow channels 406. Specifically, the valve core 31 and the valve core shaft 32 can be assembled into the second chamber 402, and at least a portion of the valve core shaft 32 passes through the second chamber 402 and is driven to the output shaft of the motor 132. Alternatively, when the drive assembly 100 also includes a gear assembly 133, the gear assembly 133 is driven to the drive assembly 100, and at least a portion of the valve core shaft 32 passes through the second chamber 402 and is driven to the gear assembly 133.

[0168] Step 4: Seal the bottom cover to the main housing 40.

[0169] For example, the bottom cover can be sealed to the main housing through welding, thereby achieving a limiting connection between the valve assembly 30 and the main housing 40. In a specific implementation, the valve assembly 30 may include a first valve assembly 30a and a second valve assembly 30b, and the main housing 40 includes a cavity shell 45, a first bottom cover 42, and a second bottom cover 43. The first bottom cover 42 is understood to mean that steps 2 and 3 can be performed simultaneously, or one of steps 2 and 3 can be performed first, followed by the other.

[0170] Step S130: Seal the connection between the drive assembly 100 and the fluid assembly 200.

[0171] In specific implementation, the drive assembly 100 can be matched with the pump assembly 20, for example, such that at least a portion of the rotor assembly 22 of the pump assembly 20 is located inside the corresponding stator assembly 130, and a portion of the isolation sleeve 23 is located between the stator assembly 130 and the corresponding rotor assembly 22. The rotor assembly 22 can be located within the magnetic field range of the corresponding stator assembly 130. When the coil winding in the stator assembly 130 is energized, a magnetic field can be generated, thereby facilitating the rotation of the rotor assembly 22 driven by the stator assembly 130. To achieve a sealed connection between the drive assembly 100 and the fluid assembly 200, a sealing ring can be provided between the drive assembly 100 and the fluid assembly 200. The drive assembly 100 and the fluid assembly 200 are connected by fasteners such as screws, and the sealing ring is compressed, thereby achieving a sealed connection between the drive assembly 100 and the fluid assembly 200.

[0172] In some embodiments, when the fluid subassembly LK further includes a valve assembly 30 and the main housing 40 further includes a plurality of flow channels 406, the first chamber 401 has a first mounting port K1, and the second chamber 402 has a second mounting port K2. The first mounting port K1 is located on a first side of the housing 45, and the second mounting port K2 is located on a second side of the housing 45. The first and second sides are located on opposite sides of the housing in the height direction. The plurality of flow channels 406 are distributed on the outer periphery of the second chamber 402. The first mounting port K1 of the first chamber 401 and the second mounting port K2 of the second chamber 402 are located on different surfaces of the main housing 40, for example... Figures 1 to 25 In the first chamber 401, the first mounting port K1 and the second mounting port K2 of the second chamber 402 are respectively located on opposite sides of the main housing 40 along its height direction.

[0173] At this point, step S120, forming at least a portion of the fluid assembly 200, includes: assembling a pump assembly 20 to the main housing 40 from one side, wherein the pump assembly 20 passes through a first mounting port K1, such that at least a portion of the pump assembly 20 is located in a first chamber 401; and assembling at least a portion of a valve assembly 30 into a second chamber 402 of the main housing 40 from the other side, wherein at least a portion of the valve assembly 30 passes through a second mounting port K2, such that at least a portion of the valve assembly 30 is located in the second chamber 402. In a specific implementation, when the valve assembly 30 includes a valve core 31 and a valve core shaft 32, the valve core shaft 31 and the valve core 32 can be passed through the second mounting port K2, such that the valve core 31 is located in the second chamber 402, and at least a portion of the valve core shaft 32 is located outside the main housing 40, facilitating the transmission connection between the valve core shaft 32 and transmission components such as the motor 132. When there are at least two pump assemblies 20 and at least two valve assemblies 30, all pump assemblies 20 can be assembled with the main housing 40 through the first mounting port K1 from one side of the main housing 40, and all valve assemblies 30 can be assembled with the main housing 40 through the second mounting port K2 from the other side of the main housing 40. After that, the bottom cover can be sealed to the cavity shell 45 of the main housing 40.

[0174] Alternatively, at least a portion of the pump assembly 20 can be first assembled into the first chamber 401 of the main housing 40, and then the drive assembly 100 can be sealed to the main housing 40 where the pump assembly 20 is assembled. In this case, after sealing the drive assembly 100 to the fluid assembly 200, step S130 may further include: assembling at least a portion of the valve assembly 30 into the corresponding second chamber 402 of the main housing 40, thereby limiting the connection between the valve assembly 30 and the main housing 40. In some embodiments, the main housing 40 also includes a bottom cover. After assembling at least a portion of the valve assembly 30 into the corresponding chamber of the main housing 40, the bottom cover can be sealed to the cavity shell of the main housing 40. For example, the bottom cover can be sealed to the main housing through a welding process, thereby achieving the limiting connection between the valve assembly 30 and the main housing 40, and sealing the second mounting port K2.

[0175] In summary, the manufacturing method of the fluid control device provided by the embodiments of the present invention facilitates the integration of at least two drive components 13 into one drive assembly. Compared with setting a separate drive device for each fluid sub-assembly LK, the fluid control device 1 provided by the embodiments of the present invention can reduce the space occupied by the drive assembly 100 and improve the integration degree of the drive assembly 100. Furthermore, at least two fluid sub-assemblies LK can also be integrated into one main housing 40, which facilitates improving the integration degree of the fluid control device 1 and reducing the space occupied by the fluid control device 1. Moreover, by setting a limiting member, the positioning shaft 222 can be axially limited, thereby providing a better axial limiting effect on structures such as the rotor assembly 22. The structure of the fluid control device obtained by the above-described manufacturing method of the fluid control device is as follows. Figures 1 to 44 As shown, no further details will be provided.

[0176] 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. For example, the directional definitions such as "front", "back", "left", "right", "up", and "down" are used. Although the present invention has been described with reference to the above embodiments, those skilled in the art should understand that they can still modify, combine or make equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A fluid control device, characterized by, The fluid control device includes an integrated housing, a pump assembly, and a control valve assembly. The pump assembly includes a first pump assembly, a second pump assembly, and a third pump assembly. The control valve assembly includes a first control valve assembly, which includes a first valve core. The integrated housing has a first sub-cavity, a second sub-cavity, a third sub-cavity, and a fourth sub-cavity spaced apart. At least a portion of the first pump assembly is located in the first sub-cavity, at least a portion of the second pump assembly is located in the second sub-cavity, at least a portion of the third pump assembly is located in the third sub-cavity, and at least a portion of the first control valve assembly is located in the fourth sub-cavity. In the integrated housing, at least one of the first sub-cavity, the second sub-cavity, and the third sub-cavity is in communication with the fourth sub-cavity; The control valve assembly further includes a second control valve assembly, which includes a second valve core. The integrated housing also has a fifth sub-cavity, which is spaced apart from the fourth sub-cavity. At least a portion of the second control valve assembly is located in the fifth sub-cavity. The integrated housing also includes a communicating channel located on the outer periphery of the wall of the fourth sub-cavity. The integrated housing also includes a first channel and a second channel corresponding to the pump assembly. The pump assembly includes an impeller assembly capable of driving fluid to flow through the first channel and the second channel. The first channel includes a first sub-channel, a second sub-channel, and a third sub-channel. The second channel includes a fourth sub-channel, a fifth sub-channel, and a sixth sub-channel. The first sub-channel and the fourth sub-channel are both connected to the first sub-cavity. The second sub-channel and the fifth sub-channel are both connected to the second sub-cavity. The third sub-channel and the sixth sub-channel are both connected to the first sub-cavity. The integrated housing is connected to a third sub-cavity, and the connecting channels include a first connecting channel, a second connecting channel, a third connecting channel, and a fourth connecting channel. The housing also includes a first flow channel and a second flow channel. At least a portion of the first flow channel is located on the wall of the fourth sub-cavity, and at least a portion of the second flow channel is located on the wall of the fifth sub-cavity. The first connecting channel connects the first sub-channel to a first flow channel located on the outer periphery of the first valve core. The second connecting channel connects the second sub-channel to another first flow channel located on the outer periphery of the first valve core. The third connecting channel connects the sixth sub-channel to yet another first flow channel located on the outer periphery of the first valve core. The fourth connecting channel connects the fifth sub-cavity and the fourth sub-cavity. By rotating the first valve core, the connection and switching of at least two first flow channels can be achieved. By rotating the second valve core, the connection, switching, and flow regulation between second flow channels can be achieved.

2. The fluid control device of claim 1, wherein, The integrated housing forms at least a portion of the wall of the fourth sub-cavity, and at least a portion of the first connecting channel, at least a portion of the second connecting channel, at least a portion of the third connecting channel, and at least a portion of the fourth connecting channel are spaced apart along the circumferential direction of the wall of the fourth sub-cavity.

3. The fluid control device according to any one of claims 1 to 2, characterized in that, The number of first flow channels is at least eight, and the number of second flow channels is at least three, with one of the first flow channels and one of the second flow channels connected.

4. The fluid control device according to claim 3, characterized in that, The first valve core includes at least four through cavities, and the through cavities of the first valve core are capable of connecting the first flow channels in pairs; The conduction cavity of the second valve core can conduct two or three of the second flow channels.

5. The fluid control device according to claim 4, characterized in that, At least a portion of the wall of the first channel is coaxially arranged with the shaft of the impeller assembly, and the opening of the second channel is located at the circumferential edge of the impeller assembly. The first or second channel of the pump assembly is in communication with the fourth sub-cavity.

6. The fluid control device according to claim 1, characterized in that, The number of first flow channels is eight, the number of second flow channels is three, one of the first flow channels and one of the second flow channels are interconnected, the other seven first flow channels are defined as first sub-flow channel, second sub-flow channel, third sub-flow channel, fourth sub-flow channel, sixth sub-flow channel, seventh sub-flow channel and eighth sub-flow channel, the other two second flow channels are defined as fifth sub-flow channel and ninth sub-flow channel, and the fluid control device has at least one of the following operating modes; In the first operating mode, the first sub-flow channel and the second sub-flow channel are connected, the third sub-flow channel and the fourth sub-flow channel are connected, the sixth sub-flow channel and the seventh sub-flow channel are connected, and at least one of the fifth sub-flow channel and the ninth sub-flow channel is connected to the eighth sub-flow channel; In the second operating mode, the third sub-channel and the second sub-channel are connected, at least one of the fifth sub-channel and the ninth sub-channel is connected to the fourth sub-channel, the seventh sub-channel and the eighth sub-channel are connected, and the sixth sub-channel and the first sub-channel are connected. In the third operating mode, the first sub-channel and the eighth sub-channel are connected, the third sub-channel and the fourth sub-channel are connected, at least one of the fifth sub-channel and the ninth sub-channel is connected to the sixth sub-channel, and the second sub-channel and the seventh sub-channel are connected. In the fourth operating mode, the first sub-channel and the second sub-channel are connected, at least one of the fifth sub-channel and the ninth sub-channel is connected to the fourth sub-channel, the sixth sub-channel and the seventh sub-channel are connected, and the third sub-channel and the eighth sub-channel are connected. In the fifth operating mode, the third sub-channel and the second sub-channel are connected, the seventh sub-channel and the eighth sub-channel are connected, at least one of the fifth sub-channel and the ninth sub-channel is connected to the sixth sub-channel, and the first sub-channel and the fourth sub-channel are connected. In the sixth operating mode, the first sub-channel and the eighth sub-channel are connected, the third sub-channel and the fourth sub-channel are connected, the sixth sub-channel and the seventh sub-channel are connected, and at least one of the fifth sub-channel and the ninth sub-channel is connected to the second sub-channel; In the seventh operating mode, the first sub-flow channel and the second sub-flow channel are connected, the seventh sub-flow channel and the eighth sub-flow channel are connected, at least one of the fifth sub-flow channel and the ninth sub-flow channel is connected to the fourth sub-flow channel, and the sixth sub-flow channel and the third sub-flow channel are connected. In the eighth operating mode, the first sub-channel and the eighth sub-channel are connected, the second sub-channel and the third sub-channel are connected, at least one of the fifth sub-channel and the ninth sub-channel is connected to the sixth sub-channel, and the fourth sub-channel and the seventh sub-channel are connected.

7. The fluid control device according to any one of claims 1, 2, 4 to 6, characterized in that, Along the height direction of the fluid control device, the first pump assembly, the second pump assembly, and the third pump assembly are at the same height on the side away from the integrated housing, and a portion of the control valve assembly is at the same height as a portion of the pump assembly.

8. The fluid control device according to any one of claims 1, 2, 4 to 6, characterized in that, The fluid control device further includes a drive assembly, which includes a first housing, a first stator assembly, a second stator assembly, a third stator assembly, a first motor, and a second motor. The first pump assembly includes a first rotor assembly, the second pump assembly includes a second rotor assembly, and the third pump assembly includes a third rotor assembly. The first rotor assembly is capable of being located within the magnetic field range of the first stator assembly, the second rotor assembly is capable of being located within the magnetic field range of the second stator assembly, and the third rotor assembly is capable of being located within the magnetic field range of the third stator assembly. The first motor is drivenly connected to the first valve core of the first control valve assembly, and the second motor is drivenly connected to the second valve core of the second control valve assembly. The drive assembly has a first receiving cavity, the first housing forms at least a portion of the wall of the first receiving cavity, and at least a portion of the first stator assembly, at least a portion of the second stator assembly, at least a portion of the third stator assembly, at least a portion of the first motor, and at least a portion of the second motor are all located in the first receiving cavity. The drive assembly further includes a control unit located in the first receiving cavity, and the first stator assembly, the second stator assembly, the third stator assembly, the first motor, and the second motor are all electrically connected to the control unit.

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