CN117006296A

CN117006296A - Fluid control device, drive assembly and manufacturing method thereof

Info

Publication number: CN117006296A
Application number: CN202210757806.XA
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2022-04-29
Filing date: 2022-06-29
Publication date: 2023-11-07

Abstract

The invention discloses a fluid control device, a driving assembly and a manufacturing method thereof, wherein the fluid control device comprises a driving assembly and at least two fluid subassemblies, the driving assembly is provided with a first accommodating cavity, the driving assembly comprises a first shell and a driving part, the driving part can drive the corresponding fluid subassemblies to act, the first shell comprises a bottom wall part and a limiting part, the bottom wall part forms part of the wall part of the first accommodating cavity, at least part of the limiting part protrudes out of the bottom wall part along the height direction of the driving assembly, at least one driving part comprises a stator assembly, the limiting part comprises a mounting cavity, the stator assembly and the first shell are arranged in a split way, at least part of the stator assembly is positioned in the mounting cavity, and at least one other driving part is in limiting connection with the first shell; wherein the at least one fluid subassembly comprises a pump assembly comprising a rotor assembly, one rotor assembly being capable of being positioned within the magnetic field of one stator assembly; this reduces the space occupied by the drive assembly.

Description

Fluid control device, drive assembly and manufacturing method thereof

Technical Field

The present invention relates to the field of fluid control, and in particular, to a fluid control device, a drive assembly, and a method of manufacturing the same.

Background

Thermal management systems typically include multiple fluid components that require separate drive components for control, resulting in a larger system footprint, and reducing the footprint of the drive components is a technical problem to be improved.

Disclosure of Invention

The invention aims to provide a fluid control device, a driving assembly and a manufacturing method thereof, wherein the fluid control device can reduce the occupied space of the driving assembly and improve the integration degree of the driving assembly.

In one aspect, an embodiment of the present invention provides a fluid control device, where the fluid control device includes a driving assembly and a fluid assembly, where the driving assembly is connected with the fluid assembly, the fluid assembly includes at least two fluid subassemblies, the driving assembly includes a first housing and a driving component, the driving component can be cooperatively disposed with the corresponding fluid subassemblies, the first housing includes a limiting portion, at least one of the driving components includes a stator assembly, the limiting portion includes a mounting cavity, the stator assembly is disposed separately from the first housing and at least part of the stator assembly is located in the mounting cavity, and at least another one of the driving components is in limiting connection with the first housing;

Wherein at least one of said fluid subassemblies comprises a pump assembly comprising a rotor assembly comprising a magnetic assembly, one of said magnetic assemblies being capable of being positioned within the magnetic field of one of said stator assemblies in an operative state.

On the other hand, the embodiment of the invention also provides a driving assembly, which comprises a first shell and driving parts, wherein the first shell comprises a limiting part, at least one driving part comprises a stator assembly, the limiting part comprises a mounting cavity, the stator assembly and the first shell are arranged in a separated mode, at least part of the stator assembly is positioned in the mounting cavity, and at least one other driving part is in limiting connection with the first shell.

In still another aspect, an embodiment of the present invention further provides a method for manufacturing a driving assembly, including:

providing a first shell, wherein the first shell comprises a limiting part, and the limiting part comprises an installation cavity;

providing at least two drive components, at least one of the drive components comprising a stator assembly,

assembling at least a portion of the stator assembly to the mounting cavity;

and at least one other driving part is in limit connection with the first shell.

According to the fluid control device, the driving assembly and the manufacturing method thereof provided by the embodiment of the invention, the fluid control device comprises the driving assembly and at least two fluid subassemblies, the driving assembly comprises the driving component, the driving component can be matched with the corresponding fluid subassemblies so that the driving component can drive the corresponding fluid subassemblies to act, at least one driving component comprises the stator assembly, at least part of the stator assembly is positioned in the mounting cavity of the limiting part so as to be convenient for limiting connection of the stator assembly with the first shell, and at least the other driving component is in limiting connection with the first shell, so that one driving assembly can integrate at least two driving components.

Drawings

FIG. 1 is a schematic exploded view of a fluid control device according to a first embodiment of the present invention;

FIG. 2 is a schematic perspective view of the fluid control device shown in FIG. 1;

FIG. 3 is a schematic exploded view of a drive assembly provided in accordance with one embodiment of the present invention;

FIG. 4 is a schematic perspective view of the drive assembly shown in FIG. 3;

FIG. 5 is a schematic cross-sectional view of one of the drive assemblies shown in FIG. 4;

FIG. 6 is a schematic view showing a partial cross-sectional structure of a combined structure of a first housing and a driving member according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of another drive assembly of the present invention;

FIG. 8 is a schematic cross-sectional view of yet another drive assembly of the present invention;

FIG. 9 is a schematic perspective view of the stator assembly shown in FIG. 4;

FIG. 10 is a schematic illustration of an exploded construction of a fluid assembly provided in accordance with one embodiment of the present invention;

FIG. 11 is a schematic perspective view of the fluid assembly shown in FIG. 10;

FIG. 12 is a schematic cross-sectional view of the first fluid assembly shown in FIG. 11 in one of its positions;

FIG. 13 is a schematic view of a partial cross-sectional structure of a fluid assembly provided by a second embodiment of the present invention;

FIG. 14 is a schematic perspective view of a main housing according to an embodiment of the present invention;

fig. 15 is a schematic cross-sectional structure of the main casing shown in fig. 14;

FIG. 16 is a schematic cross-sectional view of one of the fluid assemblies shown in FIG. 13;

FIG. 17 is a schematic view of a partial cross-sectional structure of a fluid control device according to a first embodiment of the present invention;

FIG. 18 is an enlarged schematic view of the structure at Q1 in FIG. 17;

FIG. 19 is a schematic view of a partial cross-sectional structure of a first drive assembly and fluid assembly combination of the present invention;

FIG. 20 is an enlarged schematic view of a partial structure of the combined structure of the drive assembly and the fluid assembly shown in FIG. 19;

FIG. 21 is a schematic view of a partial cross-sectional structure of a second drive assembly and fluid assembly combination of the present invention;

FIG. 22 is a schematic partial cross-sectional view of a third drive assembly and fluid assembly combination of the present invention;

FIG. 23 is a schematic partial cross-sectional view of a fourth drive assembly and fluid assembly combination of the present invention;

FIG. 24 is a schematic partial cross-sectional view of a fifth drive assembly and fluid assembly combination of the present invention;

FIG. 25 is a schematic partial cross-sectional view of a sixth drive assembly and fluid assembly combination of the present invention;

FIG. 26 is a schematic partial cross-sectional view of a seventh drive assembly and fluid assembly combination of the present invention;

FIG. 27 is an exploded view of a fluid control device according to a second embodiment of the present invention;

FIG. 28 is a schematic perspective view of the fluid control device shown in FIG. 27;

FIG. 29 is an exploded view of one of the drive assemblies shown in FIG. 27;

FIG. 30 is a schematic perspective view of the drive assembly shown in FIG. 29;

FIG. 31 is a schematic cross-sectional view of a drive assembly shown in FIG. 29;

FIG. 32 is an exploded view of the fluid assembly shown in FIG. 27;

FIG. 33 is a schematic perspective view of the fluid assembly shown in FIG. 32;

FIG. 34 is a schematic elevational view of the fluid control device illustrated in FIG. 27;

FIG. 35 is a schematic cross-sectional view of a fluid control device shown in FIG. 34 at A-A;

FIG. 36 is a schematic cross-sectional view of a fluid control device at B-B shown in FIG. 34;

FIG. 37 is a schematic cross-sectional view of one of the fluid assemblies shown in FIG. 33 in one of its positions;

FIG. 38 is a schematic cross-sectional view of one of the fluid assemblies shown in FIG. 33 in another position;

FIG. 39 is a partial schematic view of a fluid control device shown in FIG. 27;

FIG. 40 is a schematic cross-sectional view of the fluid control device shown in FIG. 27 in yet another position;

FIG. 41 is a schematic block diagram of the connection of the first valve assembly, the first pump assembly, and the second pump assembly shown in FIG. 27 in a first mode of operation;

FIG. 42 is a schematic block diagram of the connection of the first valve assembly, the first pump assembly, and the second pump assembly shown in FIG. 27 in a second mode of operation;

FIG. 43 is a schematic block diagram of the connection of the first valve assembly, the first pump assembly, and the second pump assembly shown in FIG. 27 in a third mode of operation;

FIG. 44 is a schematic block diagram of the connection of the first valve assembly, the first pump assembly, and the second pump assembly shown in FIG. 27 in a fourth mode of operation;

fig. 45 is a schematic block diagram of a method of manufacturing a fluid control device according to an embodiment of the present invention.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described hereinafter, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. Relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, and do not necessarily require or imply any such actual relationship or order between the elements.

The fluid control device provided by the embodiment of the invention can be applied to a thermal management system, for example, the thermal management system of a vehicle, and fluid circulation in the thermal management system can be conveniently realized through controlling the fluid by the fluid control device.

As shown in fig. 1 to 8, an embodiment of the present invention provides a fluid control device 1, where the fluid control device 1 includes a driving assembly 100 and a fluid assembly 200, and the driving assembly 100 and the fluid assembly 200 are connected in a sealing manner, and in a specific implementation, the driving assembly 100 may be integrally assembled with the fluid assembly 200, and a sealing member is disposed between the driving assembly 100 and the fluid assembly 200 to achieve the sealing connection therebetween.

The drive assembly 100 comprises at least two drive components 13, the drive components 13 may comprise a stator assembly 130, a motor 132 or a combination of a motor 132 and a gear assembly 133, the fluid assembly 200 comprises at least two fluid subassemblies LK, the fluid subassemblies LK comprise an actuator, the fluid subassemblies LK may comprise one or a combination of a valve assembly 30, a pump assembly 20, the actuator in the valve assembly 30 comprises a valve cartridge, and the actuator in the pump assembly 20 comprises a rotor assembly. When the driving part 13 is powered, the driving part 13 can enable an actuating element in the fluid sub-assembly LK to act, for example, when the stator assembly is powered, the stator assembly generates a magnetic field, and the rotor assembly rotates under the action of the magnetic field; or when the motor is powered, the output shaft of the motor rotates and can drive the valve core in the valve assembly to rotate. Alternatively, the number of the driving parts 13 may be the same as the number of the fluid subassemblies LK and correspond to each other one by one, and when one driving part 13 is energized, the corresponding actuating member in the fluid subassembly LK can be actuated, so that the fluid can flow in the fluid control device 1 through the actuation of the fluid subassembly LK in the fluid assembly 200. It will be appreciated that the number of driving members 13 may also be different from the number of fluid subassemblies LK, e.g. the number of driving members 13 may also be less than the number of fluid subassemblies LK, so that one driving member 13 may drive at least two fluid subassemblies LK, e.g. one driving member 13 may drive at least two fluid subassemblies LK by a clutch mechanism. As shown in fig. 1, in the present embodiment, the number of the fluid subassemblies LK is five, and accordingly, the number of the driving parts 13 is five, and the five driving parts are in one-to-one correspondence with the five fluid subassemblies LK. In other embodiments, the number of fluid subassemblies LK and the number of drive members 13 may be set according to the needs of the user, and may be two, three, four, six, or more.

Further, as shown in fig. 3 to 9, the driving assembly 100 further includes a first housing 11 and a second housing 12, the driving assembly 100 has a first accommodating cavity 101, the first housing 11 and the second housing 12 form at least part of a wall portion of the first accommodating 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 oppositely disposed along a height direction of the driving assembly 100, the first housing 11 and the second housing 12 are buckled to form the first accommodating cavity 101, at least part of at least two driving components 13 is located in the first accommodating cavity 101, so that at least two driving components 13 are integrated in one driving assembly 100, and compared with a plurality of driving assemblies of a control fluid assembly which are separately disposed, not only the number of leads can be reduced, but also the occupied space of the driving assembly 100 can be reduced. Alternatively, the entire number of driving parts 13 may be in limited connection with the first housing 11, or a part of the number of driving parts 13 may be in limited connection with the first housing 11, which is not limited in the present invention.

As shown in fig. 3 to 9, in the driving assembly 100, the first housing 11 includes a bottom wall portion 111, a limiting portion 112, and a peripheral side wall 113, the peripheral side wall 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 three portions of the peripheral side wall 113, the bottom wall portion 111, and the limiting portion 112 may be injection-molded and fixed as a unitary structure, or welded and fixed, or limited and connected by a fastener or the like. At least part of the limiting portion 112 protrudes from the bottom wall portion 111 along the height direction of the driving assembly 100, the bottom wall portion 111 and the peripheral wall portion 113 form part of the wall portion of the first accommodating cavity 101, at least one driving component 13 includes a stator assembly 130, and a driving component including the stator assembly 130 is defined as a first driving component, and at least part of the first driving component is in limiting connection in the limiting portion 112. As shown in fig. 3 to 8, at least part of the stator assembly 130 included in the first driving part is located in the limit portion 112, or the first driving part may further include a pump housing, at least part of the stator assembly 130 is located in a cavity of the pump housing, for example, the stator assembly 130 may be injection-molded with the pump housing as an insert or assembled to the cavity of the pump housing, in which case the pump housing or at least part of the pump housing and the stator assembly 130 as a whole is located in the limit portion 112. Herein, the at least partial limit connection of the stator assembly 130 in the limit portion 112 may refer to: at least part of the first driving component and the limiting part 112 form an integral structure through an injection molding process, so that at least part of the first driving component is located in the limiting part 112, or the first driving component and the first shell 11 are separately arranged, the limiting part 112 is provided with a cavity, and at least part of the first driving component can also be located in the cavity formed by the limiting part 112. By connecting at least part of the first driving component to the limiting portion 112 in a limiting manner, it is convenient to integrate at least two stator assemblies 130 in one driving assembly 100, and compared with a plurality of driving devices, the fluid control device provided by the embodiment of the invention is convenient to reduce the occupied space of the driving assembly 100 and improve the integration level of the driving assembly 100.

Referring to fig. 1 to 9, in the present embodiment, the number of driving components 13 included in the driving assembly 100 is five, and gaps are formed between the front projections of the five driving components 13 along the height direction of the driving assembly 100, wherein the three driving components 13 include stator assemblies 130, and each of the three stator assemblies 130 can be in limit connection with the corresponding limit portion 112 and located in the corresponding limit portion 112. Or in other embodiments, one of the drive components 13 of the drive assembly 100 includes a stator assembly 130, and the other drive component may be a motor or the like drive component, thereby enabling integration of different types of drive components 13.

To facilitate the positioning of the stator assembly 130, in some embodiments, at least a portion of the positioning portion 112 extends away from the first housing 101 from the bottom wall 111, and at least a portion of the positioning portion 112 extends away from the bottom wall 111 toward the fluid subassembly LK, and at least a portion of the positioning portion 112 protrudes away from the second housing 12 from the bottom wall 111. Alternatively, the stator assembly 130 may be injection molded with the limiter 112, which is herein injection molded as a unitary structure. Specifically, the stator assembly 130 may be integrally injection molded with the first housing 11 as an insert, so that the stator assembly 130 and the limiting portion 112 are injection molded into an integral structure, and at this time, the stator assembly 130 may draw out an electrical connection wire during injection molding, and may be electrically connected with the control member through the electrical connection wire; alternatively, as shown in fig. 7, the limiting portion 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 may be in limiting connection with the first housing 11 by means of fasteners or the like. Through the above arrangement, the stator assembly 130 and the limiting portion 112 are conveniently limited. When the at least two driving parts 13 each include the stator assembly 130, the whole number of stator assemblies 130 and the limiting part 112 may be injection molded into an integral structure, or the whole number of stator assemblies 130 may be assembled into the installation cavity QS formed by the limiting part 112, or a part of the number of stator assemblies 130 and the limiting part 112 may be injection molded into an integral structure, and another part of the number of stator assemblies 130 and the limiting part 112 may be injection molded into an integral structure.

As shown in fig. 8 and 9, to implement the function of the driving assembly, the driving assembly according to the embodiment of the present invention further includes a control member 15, which may be a circuit board, and defines the driving part including the stator assembly 130 as a first driving part, and in other embodiments. The first driving part further includes a pump housing 135, a transition terminal 134 connected to the pump housing 135, and a connection plate 136, where the stator assembly 130 is separately disposed with the first housing 11, and at this time, the stator assembly 130 is assembled into a mounting cavity QS formed by the limit portion 112, at least a portion of the stator assembly 130 and the connection plate 136 are both located in a cavity of the pump housing 135, and the pump housing 135 is hermetically connected to the first housing 11, for example, in fig. 8, the pump housing 135 may be hermetically connected to the first housing 11 by a sealing ring, or the pump housing 135 and the limit portion 112 of the first housing 11 are injection molded into an integral structure. The stator assembly 130 includes a coil winding 1303, the coil winding 1303 being electrically connected to pins in a transition terminal 134 by an electrically conductive member in a connection plate 136, a portion of the transition terminal 134 passing through the bottom wall portion 111 and being located in the first receiving cavity 101, the transition terminal 134 being electrically connected to the control member 15. It should be noted that, the driving part herein includes the stator assembly 130 or the motor 132, and the driving part may further include a lead structure or a terminal structure, which enables the control member 15 to be electrically connected with the stator assembly 130 or the motor 132.

To achieve the electrical connection of the stator assembly 130 and the control member 15, a metal conductive structure may be provided in the first housing 11, which may be injection molded as a unitary structure with the first housing 11 such that the metal conductive structure is pre-embedded into the first housing 11. The output terminals 1304 of the stator assembly 130 may use insulation displacement connectors (Insulation displacement connectors, IDC) and may be electrically connected to the control member 15 via IDC pins.

In this embodiment, the driving assembly 100 of the embodiment of the present invention includes three stator assemblies 130, and accordingly, the stator assemblies 130 include an insulation frame 1301, a stator core 1302, and a coil winding 1303, part of the stator core 1302 is embedded in the insulation frame 1301, the coil winding 1303 is wound on the insulation frame 1301, when the coil winding 1303 is energized, a magnetic field can be generated, and the rotor assemblies 22 in the pump assemblies 20 can be located within the magnetic field range of the corresponding stator assemblies 130, so that the stator assemblies 130 can drive the rotor assemblies 22 to rotate. With the above arrangement, the stator assembly 130 can be integrated with the driving assembly 100.

In some embodiments, as shown in fig. 24, the fluid control device may further include a spacer sleeve 23, part of the spacer sleeve 23 being located at an inner circumferential side of the stator assembly 130, alternatively, the spacer sleeve 23 may be injection molded as a single body with the first housing 11, in which case the stator assembly 130 may be injection molded as a single body with the stopper 112 or the stator assembly 130 may be located in the installation cavity QS of the stopper 112. Alternatively, as shown in fig. 19 to 24, the spacer 23 and the stator assembly 130 are molded as a unitary structure or at least part of the stator assembly 130 is located in a cavity formed by the spacer 23, the spacer 23 and the stator assembly 130 are integrally provided separately and hermetically connected to the first housing 11, a seal ring is provided between the unitary structure formed by the spacer 23 and the stator assembly 130 and the first housing 11, and the seal ring is clamped to achieve a sealed arrangement between the unitary structure and the first housing 11. Through the above arrangement, the spacing arrangement and the sealing connection between the first housings 11 of the spacer 23 can be realized.

In a specific implementation, when the stator assembly 130 and the limiting portion 112 are injection molded into an integral structure, the isolation sleeve 23 and the first housing 11 may be injection molded into an integral structure, or the isolation sleeve 23 and the first housing 11 are separately arranged and connected in a sealing manner; when the stator assembly 130 is assembled to the mounting cavity QS of the limiting portion 112, the spacer 23 may be integrally injection-molded with the first housing 11, or the spacer 23 may be separately disposed and hermetically connected with the first housing 11, or the spacer 23 may be integrally injection-molded with the stator assembly 130, and the spacer 23 and the stator assembly 130 may be integrally separately disposed and hermetically connected with the first housing 11. When the number of the stator assemblies 130 is at least two, the limiting connection modes of different stator assemblies 130 and the first housing 11 may be the same or different, and the connection modes of the spacer 23 corresponding to different stator assemblies 130 and the first housing 11 may be the same or different.

For the fluid assembly 200, referring further to fig. 10-15, in some embodiments, the fluid assembly 200 further includes a main housing 40, the main housing 40 having chambers, at least a portion of the fluid sub-assembly LK being located within the respective chamber. The fluid subassembly LK includes at least two pump assemblies 20, where the pump assemblies 20 include rotor assemblies 22, and a portion of one rotor assembly 22 can be nested with a corresponding stator assembly 130, so that the stator assembly 130 can drive the rotor assembly 22 to rotate when energized, or the stator assembly 130 and the rotor assembly 22 can have a disk-shaped structure. One of the pump assemblies is defined as a first pump assembly 20a and the other pump assembly is defined as a second pump assembly 20b, the first pump assembly 20a including a first rotor assembly 22a, the second pump assembly 20b including a second rotor assembly 22b, the first rotor assembly 22a being capable of being positioned within the magnetic field of the first stator assembly 130a, the second rotor assembly 22b being capable of being positioned within the magnetic field of the second stator assembly 130 b. In the embodiment, the number of pump assemblies may be set according to the needs of the user, for example, two, three, four or more, and in this embodiment, the number of three fluid subassemblies LK includes the pump assemblies 20, and the three pump assemblies 20 are respectively the first pump assembly 20a, the second pump assembly 20b and the third pump assembly 20c, and there is a gap between the three pump assemblies. With the above arrangement, integration of at least two pump assemblies 20 is facilitated, and piping connections between the pump assemblies 20 are facilitated to be reduced.

To facilitate various modes of operation of the fluid control device, in some embodiments, at least one fluid subassembly LK comprises pump assembly 20 and at least one fluid subassembly LK comprises valve assembly 30, valve assembly 30 comprises valve spool 31 and valve spool shaft 32, valve spool 31 may be injection molded as a unitary structure with valve spool shaft 32, or coupled by an interference fit or by a connecting key, valve spool 31 may be drivingly coupled to an output shaft of motor 132 by valve spool shaft 32, and valve spool 31 may be capable of rotating or translating under the power of motor 132. In the present embodiment, the valve core 31 can be rotated under the drive, so that various operation modes of the fluid control device 1 are facilitated. The term "two-part drive connection" as used herein refers to a drive force that can be transmitted between two parts, either directly or indirectly. Specifically, the spool shaft 32 of the valve assembly 30 may be directly in driving connection with the motor 132, or the drive assembly 100 may further include a gear assembly 133, and the motor 132 may be in driving connection with the spool shaft 32 of the spool 31 through the gear assembly 133. In implementation, the number of valve assemblies 30 may be set according to the needs of the user, for example, in fig. 1, two of the fluid subassemblies LK in this embodiment include valve assemblies 30, and the driving assembly 100 includes two motors 132, so as to implement the action of the motors 132 to drive the corresponding valve assemblies 30.

Further, as shown in fig. 3-16, in some embodiments, the pump assembly 20 includes a rotor assembly 22, and a spacer 23 of the fluid control device is disposed over an outer peripheral side of the rotor assembly 22. By providing the spacer 23, the stator assembly 130 and the corresponding rotor assembly 22 can be isolated from each other, preventing the working fluid from entering the space where the stator assembly 130 is located.

To enable fluid communication within the fluid control device 1, in some embodiments, at least part of the main housing 40 is located on a side of the first housing 11 facing away from the first receiving cavity 101, as shown in fig. 1, at least part of the main housing 40 is located on a side of the first housing 11 facing away from the second housing 12, the main housing 40 further comprises connection pipes 41, the connection pipes 41 may be arranged along a circumferential direction of the main housing 40, or the connection pipes 41 may be integrated on at least one mounting surface. As shown in fig. 11 to 17, the main housing 40 has a first chamber 401, a first orifice 404, and a second orifice 405, each of the first orifice 404 and the second orifice 405 being in communication with the first chamber 401, at least part of one pump assembly 20 being located in one of the first chambers 401; wherein rotation of the rotor assembly 22 drives fluid communication between the first and second ports 404, 405. Optionally, the rotor assembly 22 includes an impeller assembly 221 and a magnetic assembly 223, the pump assembly 20 further includes a positioning shaft 222, the impeller assembly 221 is sleeved on the outer peripheral side of the positioning shaft 222, at least part of the impeller assembly 221 may be located in the first chamber 401, at least part of the first channel 404 and the impeller assembly are arranged 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 part of a wall portion of the first channel 404 may be coaxially disposed with the rotation axis of the impeller assembly 221, the mouth portion of the second channel 405 is located at the edge of the impeller assembly 221 in the circumferential direction, fluid can enter the impeller assembly from the first channel 404, under the centrifugal force of the impeller assembly, the fluid is discharged from the second channel 405, at this time, the first channel 404 may be an inlet channel of the pump assembly 20, and the second channel 405 may be an outlet channel of the pump assembly 20.

When the at least one fluid subassembly LK further includes the valve assembly 30, the main housing 40 further includes a second chamber 402, the second chamber 402 is disposed in spaced relation to the first chamber 401, at least a portion of one of the pump assemblies 20 is sealingly disposed in the first chamber 401, at least a portion of one of the valve spools 31 is disposed in one of the second chamber 402, alternatively, at least a portion of one of the pump assemblies 20 may be disposed in a seal with the main housing 40, or a portion of the pump assembly 20 may be welded to the main housing 40 to effect a sealed arrangement therebetween, and similarly, a seal may be disposed between the valve spool 31 and the main housing 40, or a plurality of separately disposed components of the main housing 40 may be welded to sealingly dispose the valve spool 31 in the second chamber 402. By the above arrangement, it is possible to integrate both the at least one pump assembly 20 and the at least one valve cartridge 31 in one main housing 40, thereby facilitating a reduction in the space occupied by the fluid assembly 200, and further reducing the space occupied by the fluid control device 1.

As shown in fig. 12 to 19, in order to implement fluid communication between the pump assembly 20 and the valve assembly 30, in some embodiments, the main housing 40 further has a communication channel 407 and a plurality of 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 molded as a single structure, the first cavity 401, the second cavity 402 and the flow channels 406 are located in the cavity shell 45, the communication channel 407 is located in the flow channel plate 44, at least part of the flow channel plate 44 is connected between two fluid subassemblies LK, for example, the flow channel plate 44 may be connected between the pump assembly 20 and the valve assembly 30, or the flow channel plate 44 may also be connected between two valve assemblies 30, in embodiments of the present invention, by integrating the flow channel plate 44 and the cavity shell 45, it is convenient to reduce the pipe connection between the cavity shells 45 and improve the integration degree of the fluid control device. Further, a plurality of flow passages 406 are distributed on the outer peripheral side of the second chamber 402, one flow passage 406 communicates with one of the first orifice 404 and the second orifice 405 through one communication passage 407, the valve core 30 includes a through cavity 31, and the through cavity 311 is capable of communicating at least two flow passages 406, wherein an extending direction of the communicating orifice 407, an extending direction of the flow passage 406, and an extending direction of the first orifice 404 or the second orifice 405, which are mutually communicated, intersect.

In some embodiments, referring further to fig. 1 to 19, the pump assembly 20 includes a first pump assembly 20a, a second pump assembly 20b, and a third pump assembly 20c, the 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 sealing member (not shown), the second valve assembly 30b includes a second valve core 31b and a second sealing member (not shown), wherein the first pump assembly 20a, the second pump assembly 20b, the third pump assembly 20c, and the second valve assembly 30b are distributed on an outer peripheral side of the first valve assembly 30a, the flow channel 406 defined on the outer peripheral side of the first valve assembly 30a is a first flow channel 4061, the second flow channel 4061 is located on a wall portion of the chamber where the first valve assembly 30a is located, the number of the second flow channel 4061 may be at least eight, for example, the flow channel defined on the outer peripheral side of the second valve assembly 30b is a second flow channel 4062, and the second flow channel 4062 is located on a wall portion of the chamber where the second valve assembly 40 b is located. The number of the second flow passages 4062 may be at least three, for example, three, wherein one of the first flow passages 4061 is in communication with one of the second flow passages 4062, the first valve element 31a includes at least four conducting cavities 311, the conducting cavities 31 of the first valve element 31a can conduct the first flow passages 4061 two by two, and the conducting cavities of the second valve element can conduct the two or three second flow passages 4062. By rotating the first valve body 31a, communication and switching of at least one first flow passage can be achieved, and by rotating the second valve body 31b, communication, switching, and flow adjustment between the second flow passages can be achieved.

Based on this, the communication passage 407 of the main housing 40 may include a first communication passage 407a, a second communication passage 407b, and a third communication passage 407c, the first chamber 401 includes a first subchamber A1, a second subchamber A2, and a third subchamber A3, the second chamber 402 includes a fourth subchamber A4 and a fifth subchamber A5, at least part of the first pump assembly 20a is located in the first subchamber A1, at least part of the second pump assembly 20b is located in the second subchamber A2, at least part of the third pump assembly 20c is located in the third subchamber A3, at least part of the first valve assembly 30a is located in the fourth subchamber A4, and at least part of the second valve assembly 30b is located in the fifth subchamber A5, wherein the first subchamber A1, the second subchamber A2, and the third subchamber A3 are all in communication with the fourth subchamber A4, and the fifth subchamber A5 is in communication with the fourth subchamber A4. The first porthole 404 includes a first sub-porthole 404a, a second sub-porthole 404b and a third sub-porthole 404c, the second porthole 405 includes a fourth sub-porthole 405a, a fifth sub-porthole 405b and a sixth sub-porthole 405c, the first sub-porthole 404a and the fourth sub-porthole 405a are all communicated with the first sub-chamber A1, the second sub-porthole 404b and the fifth sub-porthole 405b are all communicated with the second sub-chamber A2, and the third sub-porthole 404c and the sixth sub-porthole 405c are all communicated with the third sub-chamber A3; wherein the first communication passage 407a communicates the first subchamber A1 with the fourth subchamber A4, specifically, the first communication passage 407a communicates the first subchannel 404a with one first flow passage 4061 located on the outer peripheral side of the first valve core 31a, and the fourth subchannel 405a communicates with the inner cavity of the adapter tube 41; the second communication passage 407b communicates the second subchamber A2 and the fourth subchamber A4, specifically, the second communication passage 407b communicates the second subchannel 404b with another first flow passage 4061 located on the outer peripheral side of the first spool 31a, and the fifth subchannel 405b communicates with the inner cavity of the adapter tube 41; the third communication passage 407c communicates the third subchamber A3 with the fourth subchamber A4, specifically, the third communication passage 407c communicates the sixth subchannel 405c with the further first flow passage 4061 located on the outer peripheral side of the first spool 31a, and the third subchannel 404c communicates with the inner cavity of the adapter tube 41.

Further, the main housing 40 further includes a fourth communication passage 407d, and the fourth communication passage 407d communicates the fifth subchamber A5 and the fourth subchamber A4. The first communication passage 407a, the second communication passage 407b, the third communication passage 407c, and the fourth communication passage 407d are provided separately on the outer peripheral surface of the wall portion of the fourth subchamber A4. As shown in fig. 15, in some embodiments, at least part of the first communication passage 407a, at least part of the second communication passage 407b, at least part of the third communication passage 407c, and at least part of the fourth communication passage 407d are disposed at intervals in the circumferential direction of the wall portion of the fourth subchamber A4. In other embodiments, the communication channels may be provided in other forms, for example, at least part of the communication channels are arranged along the height direction of the fluid control device. Through the arrangement, the pump assembly 20 and the valve assembly can jointly act to realize various working modes of the fluid control device, and when the fluid control device is applied to the thermal management system, various working states of the thermal management system can be realized, so that the functions of cooling, reducing temperature and the like of different heating sources can be realized conveniently.

The fluid control device provided by the embodiment of the invention is described below.

Referring to fig. 1 to 26, in some embodiments, each of the at least two driving components 13 includes a stator assembly 130, each of the at least two fluid sub-assemblies LK includes a pump assembly 20, one of the pump assemblies is defined as a first pump assembly 20a, the other pump assembly is defined as a second pump assembly 20b, one of the stator assemblies is a first stator assembly 130a, the other stator assembly is a second stator assembly 130b, the limiting portion 112 includes a first limiting portion 112a and a second limiting portion 112b, at least part of the first stator assembly 130a is limited and connected within the first limiting portion 112a, at least part of the second stator assembly 130b is limited and connected within the second limiting portion 112b, the first pump assembly 20a includes a first rotor assembly 22a, the second pump assembly 20b includes a second rotor assembly 22b, the first rotor assembly 22a can be located within the magnetic field of the first stator assembly 130a, the second rotor assembly 22b can be located within the magnetic field of the second stator assembly 130b, optionally, part of the first rotor assembly 22a is located inside the first stator assembly 130a, and part of the second rotor assembly 22b is located inside the second stator assembly 130 b. Through the above arrangement, at least two stator assemblies 130 can be integrated in one driving assembly 100, and compared with the two stator assemblies 130 which are separately arranged in different driving assemblies, the integration level of the driving assembly 100 can be improved.

As shown in fig. 1 to 9, in the embodiment, the three driving components 13 each include a stator assembly 130, the three stator assemblies 130 are a first stator assembly 130a, a second stator assembly 130b and a third stator assembly 130c, respectively, where the first housing 11 includes a first limiting portion 112a, a second limiting portion 112b and a third limiting portion 112c, the number of the fluid subassemblies LK including the pump assembly 20 may also be two, three, four or more, the fluid subassemblies LK in the embodiment include three pump assemblies 20, and the three pump assemblies 20 are defined as a first pump assembly 20a, a second pump assembly 20b and a third pump assembly 20c, respectively, where a portion of the third rotor assembly 22c is located inside the third stator assembly 130c, and the third rotor assembly 22c can be located in a magnetic field range of the third stator assembly 130 c.

In some embodiments, at least one fluid subassembly LK comprises pump assembly 20, at least one fluid subassembly LK comprises valve assembly 30, wherein at least one drive component 13 comprises stator assembly 130, at least one other drive component 13 comprises motor 132, first housing 11 further comprises mounting portion 114, mounting portion 114 is spaced from spacing portion 112, motor 132 is in spacing connection with mounting portion 114, and at least a portion of motor 132 is located in first receiving cavity 101. By the above arrangement, it is possible to facilitate the integration of at least one stator assembly 130 and at least one motor 132 in one drive assembly 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 may be injection molded into an integral structure, or connected by interference fit or through a connecting key, the valve core 31 is connected with an output shaft of the motor 132 through the valve core shaft 32 in a transmission manner, the valve core 31 may rotate or translate under the power action of the motor 132, in this embodiment, the valve core 31 may rotate under the drive, so as to facilitate implementing multiple working modes of the fluid control device 1. Specifically, the spool shaft 32 of the valve assembly 30 may be directly in driving connection with the motor 132, or the drive assembly 100 may further include a gear assembly 133, and the motor 132 may be in driving connection with the spool shaft 32 of the spool 31 through the gear assembly 133. By the above arrangement, it is possible to realize that at least one stator assembly 130 and at least one motor 132 are integrated into the same drive assembly 100, facilitating a reduction of the occupation space of the drive assembly 100. In implementation, the number of valve assemblies 30 and the number of motors 132 may be set according to the needs of the user, for example, in fig. 1, two of the fluid subassemblies LK in the present embodiment include valve assemblies 30, and accordingly, the driving assembly 100 includes two motors 132, so as to implement the action of driving the corresponding valve assemblies 30 by the motors 132.

Specifically, referring to fig. 1 to 26, the driving assembly 100 includes five driving components 13, wherein three driving components 13 each include a stator assembly 130, the three stator assemblies 130 are defined as a first stator assembly 130a, a second stator assembly 130b and a third stator assembly 130c, two driving components 13 each include a motor 132 and a gear assembly 133 to form a transmission assembly, one of the transmission assemblies includes a first motor 132a and a first gear assembly 133a, and the other transmission assembly includes a second motor 132b and a second gear assembly 133b; accordingly, the fluid assembly 200 includes five fluid subassemblies LK, where three fluid subassemblies LK each include a pump assembly 20, two other 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, respectively, one valve assembly 30 includes a first valve core 31a, another valve assembly 30 includes a second valve core 31b, where 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, the third stator assembly 130c can drive the rotor assembly in the third pump assembly 20c to rotate, the first motor 132a and the first gear assembly 133a form a first transmission assembly capable of driving the first valve core 31a to rotate, and the second motor 132b and the second transmission assembly 133b form a second transmission assembly capable of driving the second valve core 31b to rotate. Optionally, along the height direction of the fluid control device 1, the sides of the first pump assembly 20a, the second pump assembly 20b and the third pump assembly 20c facing away from the main housing 40 are located at the same height, i.e. the ends of the three pump assemblies close to the driving assembly 100 may be located at the same height, so as to be assembled with the three stator assemblies in the driving assembly 100, alternatively, the sides of the three stator assemblies corresponding to the three pump assemblies may also be located at the same height, so as to be assembled with the control member; the valve assembly 30 is positioned at the same level as the pump assembly 20, and by virtue of the arrangement described above, the height of the fluid control device is conveniently reduced, and both the control member of the valve assembly 30 and the control member of the pump assembly 20 are conveniently integrated with the first housing and are conveniently electrically connected to the same control member.

The following describes the operation mode of the fluid control device shown in fig. 1 to 26. Seven first flow passages 4061 are defined as a first sub-flow passage P1, a second sub-flow passage P2, a third sub-flow passage P3, a fourth sub-flow passage P4, a sixth sub-flow passage P6, a seventh sub-flow passage P7 and an eighth sub-flow passage P8, two second flow passages 4062 are defined as a fifth sub-flow passage P5 and a ninth sub-flow passage P9, a conduction cavity of the first valve core 31a is defined as a first conduction cavity, and a conduction cavity of the second valve core 31b is defined as a second conduction cavity. The fluid control device provided by the embodiment of the invention has at least one of the following working modes:

in the first operation mode, the first valve core 31a rotates to the first position, the first sub-runner P1 and the second sub-runner P2 are conducted through one of the first conduction cavities, the third sub-runner P3 and the fourth sub-runner P4 are conducted through the other of the first conduction cavities, the sixth sub-runner P6 and the seventh sub-runner P7 are conducted through the other of the first conduction cavities, and at least one of the fifth sub-runner P5 and the ninth sub-runner P9 is conducted with the eighth sub-runner P8 through the other of the first conduction cavity, the fourth communication channel 407d and the second conduction cavity.

In the second operation mode, the first valve core 31a rotates to the second position, the third sub-runner P3 and the second sub-runner P2 are conducted through one of the first conducting cavities, at least one of the fifth sub-runner P5 and the ninth sub-runner P9 is conducted with the fourth sub-runner P4 through the other of the first conducting cavity, the fourth communicating channel 407d and the second conducting cavity, the seventh sub-runner P7 and the eighth sub-runner P8 are conducted through the other of the first conducting cavities, and the sixth sub-runner P6 and the first sub-runner P1 are conducted through the other of the first conducting cavities.

In the third operation mode, the first valve core 31a rotates to the third position, the first sub-runner P1 and the eighth sub-runner P8 are conducted through one of the first conduction cavities, the third sub-runner P3 and the fourth sub-runner P4 are conducted through the other first conduction cavity, at least one of the fifth sub-runner P5 and the ninth sub-runner P9 is conducted with the sixth sub-runner P6 through the other first conduction cavity, the fourth communication channel 407d and the second conduction cavity, and the second sub-runner P2 and the seventh sub-runner P7 are conducted through the other first conduction cavity.

In the fourth operation mode, the first valve body 31a rotates to the fourth position, the first sub-flow path P1 and the second sub-flow path P2 are conducted through one of the first conduction chambers, at least one of the fifth sub-flow path P5 and the ninth sub-flow path P9 is conducted with the fourth sub-flow path P4 through the other of the first conduction chamber, the fourth communication channel 407d and the second conduction chamber, the sixth sub-flow path P6 and the seventh sub-flow path P7 are conducted through the other of the first conduction chamber, and the third sub-flow path P3 and the eighth sub-flow path P8 are conducted through the other of the first conduction chamber.

In the fifth operation mode, the first valve core 31a rotates to the fifth position, the third sub-runner P3 and the second sub-runner P2 are conducted through one of the first conduction cavities, the seventh sub-runner P7 and the eighth sub-runner P8 are conducted through the other first conduction cavity, at least one of the fifth sub-runner P5 and the ninth sub-runner P9 and the sixth sub-runner P6 are conducted through the other first conduction cavity, the fourth communication channel 407d and the second conduction cavity, and the first sub-runner P1 and the fourth sub-runner P4 are conducted through the other first conduction cavity.

In the sixth operation mode, the first valve element 31a rotates to the sixth position, the first sub-flow path P1 and the eighth sub-flow path P8 are conducted through one of the first conduction chambers, the third sub-flow path P3 and the fourth sub-flow path P4 are conducted through the other of the first conduction chambers, the sixth sub-flow path P6 and the seventh sub-flow path P7 are conducted through the other of the first conduction chambers, and at least one of the fifth sub-flow path P5 and the ninth sub-flow path P9 is conducted with the second sub-flow path P2 through the other of the first conduction chamber, the fourth communication channel 407d and the second conduction chamber.

In the seventh operation mode, the first valve element 31a rotates to the seventh position, the first sub-flow path P1 and the second sub-flow path P2 are conducted through one of the first conduction chambers, the seventh sub-flow path P7 and the eighth sub-flow path P8 are conducted through the other first conduction chamber, at least one of the fifth sub-flow path P5 and the ninth sub-flow path P9 is conducted with the fourth sub-flow path P4 through the still other first conduction chamber, the fourth communication channel 407d and the second conduction chamber, and the sixth sub-flow path P6 and the third sub-flow path P3 are conducted through the still other first conduction chamber.

In the eighth operation mode, the first valve element 31a rotates to the eighth position, the first sub-flow path P1 and the eighth sub-flow path P8 are conducted through one of the first conduction chambers, the second sub-flow path P2 and the third sub-flow path P3 are conducted through the other first conduction chamber, at least one of the fifth sub-flow path P5 and the ninth sub-flow path P9 is conducted with the sixth sub-flow path P6 through the other first conduction chamber, the fourth communication channel 407d and the second conduction chamber, and the fourth sub-flow path P4 and the seventh sub-flow path P7 are conducted through the other first conduction chamber.

Alternatively, it is also possible to achieve a conduction mode between different channels by rotating the second spool 31b or to achieve a proportional adjustment between channels corresponding to the second spool 31 b. It will be appreciated that when the fluid control device has a greater number of flow channels or ports, the fluid control device may further include three or more spools for effecting switching of the conduction mode between the plurality of flow channels or ports, as the invention is not limited in this regard.

The first chamber 401 and the second chamber 402 each have an opening located on the surface of the main housing 40, in order to facilitate 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 located on different surfaces of the main housing 40, as shown in fig. 1, the opening of the first chamber 401 and the opening of the second chamber 402 are located on two sides of the main housing 40, which are opposite to each other in the height direction, where the main housing 40 includes a cavity shell 45 and a bottom cover, and the bottom cover and the cavity shell 45 may be in sealing connection through a welding process, for example, the bottom cover 42 and the second bottom cover 43 may be located on the cavity shell 45, and each flow channel and the cavity may be in sealing connection with the cavity shell 45, for example, the first bottom cover 42 and the second bottom cover 43 may be in sealing connection through welding, bonding, or a sealing ring, etc.

In some embodiments, the chamber housing 45 includes a chamber housing side wall, a chamber housing top wall, a portion of the chamber housing side wall and the chamber housing top wall forming at least a portion of the wall of the first chamber 401, the chamber housing side wall and the chamber housing top wall being of unitary construction, the chamber housing top wall being on the same side of the main housing 40 as the first mounting port. By the above arrangement, it is possible to facilitate reducing the assembly error between the valve assembly 30 and the corresponding driving member 13, and to facilitate improving the strength of the chamber housing 45, and it is possible to facilitate having the driving members of the valve assembly 30 and the pump assembly 20 corresponding to be located on the same side of the main housing 40.

In particular embodiments, the main housing 40 includes a first end S1 and a second end S2, the first end S1 and the second end S2 are disposed opposite to each other along a height direction of the main housing 40, the first mounting opening K1 of the first chamber 401 is located at the first end S1, the second mounting opening K2 of the second chamber 402 is located at the second end S2, and the driving assembly 100 is located at a side of the first end S1 facing away from the second end S2. Through the above arrangement, the pump assembly 20 can be assembled with the main housing 40 at one side of the main housing 40, and the valve assembly 30 is assembled with the main housing 40 from the other side of the main housing 40, so that the driving component for driving the pump assembly 20 and the driving component for driving the valve assembly 30 are arranged at the same side, and the integration of a plurality of driving components is facilitated. When the number of valve assemblies 30 is at least two, the entire number of valve assemblies 30 can be mounted through the same side of the main housing 40, so as to facilitate uniform assembly reference, and then the entire number of pump assemblies 20 can be mounted from the other side of the main housing 40, so as to facilitate reduction of assembly errors, and better realization of coaxiality between at least two valve assemblies 30 and the corresponding driving members 13. It will be appreciated that the first mounting port K1 of the first chamber 401 and the second mounting port K2 of the second chamber 402 may also be disposed on the same side of the main housing 40 such that the pump assembly 20 and the valve assembly 30 are assembled from the same side of the main housing, as the invention is not limited in this respect.

With further reference to fig. 16-26, in some embodiments, when each pump assembly 20 further includes a spacer sleeve 23, and the spacer sleeve 23 is sealingly connected to the first housing 11, such as when the spacer sleeve 23 is injection molded as a unitary structure with the first housing 11 or separately provided from the first housing 11, the spacer sleeve 23 may be injection molded as a unitary structure with the main housing 40; or when the isolation sleeve 23 and the first shell 11 are in an integral structure through injection molding or are arranged in a split mode with the first shell 11, the isolation sleeve 23 and the main shell 40 are arranged in a split mode, one side of the isolation sleeve 23 in the thickness direction is connected with the main shell 40 in a sealing mode through a sealing ring, and the sealing ring can be an O-shaped sealing ring or an X-shaped sealing ring. Through the arrangement, the spacing and sealing connection between the spacer sleeve 23 and the main housing 40 can be realized, and the stator assembly 130 and the first housing 11 can be injection molded into an integral structure, or the stator assembly 130 and the first housing 11 are separately arranged and mutually assembled.

In a specific implementation, to realize the sealing connection between the spacer 23 and the first housing 11 and the main housing 40, the fluid control device 1 may optionally include a sealing ring, where one sealing ring may be sandwiched between one side of the spacer 23 in the thickness direction and the first housing 11 when the spacer 23 is separately disposed from the first housing 11; when the isolation sleeve 23 and the main casing 40 are separately arranged, one of the sealing rings can be clamped between the other side of the thickness direction of the isolation sleeve 23 and the main casing 40, so that the sealing performance of the fluid control device 1 is realized, the leakage of fluid is reduced, the fluid can be reduced or prevented from entering the stator assembly, and the stator assembly is protected.

With further reference to fig. 12 and 26, in some embodiments, the pump assembly 20 further includes a pump cap 24, the pump cap 24 being sealingly connected to the spacer 23, in particular, the pump cap 24 may be welded to the spacer 23, and the rotor assembly 22 is located in the space formed between the pump cap 24 and the spacer 23; the pump cap 24 has a first port 241 and a second port 242, the rotor assembly 22 is capable of driving fluid communication between the first port 241 and the second port 242, at least a portion of the pump cap 24 is located in the first chamber 401 and the pump cap 24 is sealingly connected to the main housing 40, and the first port 241 is in communication with the first aperture 404 and the second port 242 is in communication with the second aperture 405. In particular embodiments, the pump assembly 20 has a pump chamber 201, a first channel 202 and a second channel 203, the pump cap 24 forming 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 cap 24, the first port 241 located in the first channel, the second port 242 located in the second channel, at least a portion of the first channel 202 located in the first channel 404, and at least a portion of the second channel 203 located in the second channel 405.

To achieve a sealed connection between the pump cover 24 and the main housing 40, in some embodiments, as shown in fig. 26, 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 unitary structure. Herein, the two structural members may be formed as a unitary structure by injection molding, or may be manufactured by other processes, which is not limited thereto.

Referring further to fig. 1 to 8, in order to control the driving component 1 in the driving assembly 100, in some embodiments, the fluid control device 1 further includes a control member 15 and a connection terminal 16, where the control member includes several electronic components, and the electronic components may include a resistor, a capacitor, an inductor, an integrated circuit, or the like, and the control member 15 is located in the first accommodating cavity 101. At least part of the connection terminal 16 is located outside the first accommodation chamber, for example as shown in fig. 1 to 5, the connection terminal 16 is located on a side of the second housing 12 facing away from the first accommodation chamber 101, and the connection terminal 16 is integrally injection-molded with the second housing 12, wherein the connection terminal 16 is electrically connected with the control member 15, and at least two driving members 13 are each electrically connected with the control member 15. By the above arrangement, control of at least two driving parts 13 can be achieved by using one control member 15, space is saved and cost of the driving assembly 100 is reduced, and the operation of the fluid control device 1 can be facilitated by communicating with external electrical equipment by using one connection terminal 16. To facilitate control of the plurality of drive components by one control member 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 chamber 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 member 15. The connection terminal 16 can be electrically connected with an external harness structure so that the control member 15 can control the motor to rotate, thereby rotating the valve spool in the valve assembly; further, the control member 15 can also control on-off of power supply of the stator assembly, when the control member 15 controls the stator assembly to be electrified, the stator assembly generates a magnetic field, so that the rotor assembly is rotated under the action of the magnetic field, fluid flows in the first channel and the second channel under the action of centrifugal force of the impeller assembly, the fluid is driven to flow in the valve assembly, and the reversing of the fluid and/or the flow regulation effect of the fluid are realized through the valve assembly.

As shown in fig. 25, the driving part including the stator assembly 130 is defined as a first driving part, and the first driving part further includes a pump housing 135, a transition terminal 134 connected to the pump housing 135, and a connection plate 136, where the stator assembly 130 is separately disposed from the first housing 11, at least a portion of the stator assembly 130 and the connection plate are both located in a cavity of the pump housing 135, and the pump housing 135 is in sealing connection with the first housing 11, for example, in fig. 25, the pump housing 135 may be in sealing connection with the first housing 11 through a sealing ring, or the pump housing 135 and the limit portion 112 of the first housing 11 are injection molded as a unitary structure. The stator assembly 130 includes a coil winding 1303, the coil winding 1303 being electrically connected to pins in a transition terminal 134 by an electrically conductive member in a connection plate 136, a portion of the transition terminal 134 passing through the bottom wall portion 111 and being located in the first receiving cavity 101, the transition terminal 134 being electrically connected to the control member 15. It should be noted that, the driving component herein includes the stator assembly 130 or the motor 132, and may further include a lead structure or a terminal structure where the stator assembly 130 or the motor 132 is electrically connected to the control member 15.

Referring further to fig. 1 to 26, in some embodiments, the fluid control device 1 further includes a limiting assembly 50, where the limiting assembly 50 may be located on the fluid assembly 200, the pump assembly 20 includes a rotor assembly 22, a positioning shaft 222 and a spacer sleeve 23, at least a portion of the rotor assembly 22 is sleeved with the stator assembly 130, the spacer sleeve 23 is covered on a portion of an outer peripheral side of the rotor assembly 22, and at least a portion of the spacer sleeve 23 is located between the stator assembly 130 and the rotor assembly 22, where the positioning shaft 222 is sleeved on an inner side of the rotor assembly 22, a first side of the positioning shaft 222 in an axial direction is disposed in a limiting manner with the spacer sleeve 23, the limiting assembly 50 is disposed near a second side of the positioning shaft 222 in an axial direction, and the limiting assembly 50 is disposed in a limiting manner with the rotor assembly 22, for example, the limiting assembly 50 abuts against the rotor assembly 22. In this embodiment, the axial direction of the positioning shaft 222 is parallel or coincident with the height direction of the fluid control device. Through the above arrangement, both sides of the axial direction of the positioning shaft 222 can be limited, so that the axial movement of the positioning shaft 222 is improved, the axial movement of the rotor assembly 22 is further improved, and the noise of the pump assembly 20 is reduced.

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 an axial direction of the rotor assembly 22, at least a portion of the magnetic assembly 223 is sleeved on an inner surface side of the stator assembly 130, so that at least a portion of the magnetic assembly 222 can be located within a magnetic field periphery of the stator assembly 130, the spacer sleeve 23 includes an end wall portion 231, a connecting portion 232, and a peripheral wall portion 233, an extending direction of the end wall portion 231 intersects the axial direction of the rotor assembly 22, 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 at least a portion of the peripheral wall portion 233 is located between the rotor assembly 22 and the stator assembly 130 along a radial direction of the rotor assembly 22; along the axial direction of the rotor assembly 22, at least part of the connecting portion 232 protrudes from the end wall portion 231 towards the direction of the rotor assembly 22, one side of the positioning shaft 222 is in limit setting with the connecting portion 232, and the magnetic assembly 223 is located between the connecting portion 232 and the limit assembly 50.

As shown in fig. 26, in some embodiments, when the pump assembly 20 further includes the pump cover 24, at least part of the pump cover 24 is located on the outer peripheral side of the impeller assembly 221, and at least part of the pump cover 24 is located in the first chamber 401, at least part of the stopper assembly 50 is located in the pump cover 24, the stopper assembly 50 has a groove 521, and the end of the second side of the positioning shaft 222 is located in the groove 521 and abuts against the bottom wall portion of the groove 521. Through the arrangement, the isolating sleeve 23 is matched with the pump cover 24, so that the axial limit of the rotor assembly 22 is realized. Alternatively, the pump cap 24 may be injection molded as a unitary structure with the main housing 40; or the pump cover 24 can be separately arranged with the main casing 40 and in limited connection, and a sealing ring is arranged between the pump cover 24 and the main casing 40 to realize the sealing of the two.

As shown in fig. 18 to 25, when the pump cover 24 and the main housing 40 are injection molded as a unitary structure, at least a portion of the impeller assembly 221 is located in the first chamber 401, the main housing 40 includes a first port 404 and a second port 405 in communication with the first chamber 401, and rotation of the impeller assembly 221 drives fluid communication between the first port 404 and the second port 405. The limiting assembly 50 comprises a supporting portion 52 and at least two connecting ribs 51, the connecting ribs 51 are connected with the peripheral wall of the first pore canal 404, the connecting ribs 51 are distributed on the outer peripheral side of the supporting portion 52, the supporting portion 52 is connected with the connecting ribs 51, the groove 521 is located on the supporting portion 52, and one end portion of the positioning shaft 222 is embedded in the groove 521. Through the arrangement, fluid communication in the first hole 404 can be realized, and axial limiting of the positioning shaft 222 can also be realized.

Alternatively, as shown in fig. 26, when the pump cover 24 is provided separately from the main casing 40, the pump assembly 20 has a pump chamber 201, a first passage 202 and a second passage 203, the pump cover 24 forms at least part of a wall portion of the pump chamber, wherein the first passage 202 and the second passage 203 are both in communication with the pump chamber 201, when the spacing assembly 50 includes a support portion 52 and at least two connection ribs 51, the connection ribs 51 are connected with a peripheral wall of the first passage 202 of the pump cover 24, the connection ribs 51 are distributed on an outer peripheral side of the support portion 52, and the support portion 52 is connected with the connection ribs 51, the groove 521 is located in the support portion 52, and one end portion of the positioning shaft 222 is embedded in the groove 521.

In some embodiments, the rotor assembly 22 further includes a first bearing 251 and a second bearing 252, the first bearing 251 and the second bearing 252 being arranged along an axial direction of the rotor assembly 22; in the axial direction of the rotor assembly 22, the first bearing 251 is located between the coupling portion 232 of the spacer 23 and the magnetic assembly 223, and the second bearing 252 is located between the magnetic assembly 223 and the spacing assembly 50. By the above arrangement, rotation of the magnetic element 223 in the rotor assembly 22 and the impeller assembly 22 is facilitated.

As shown in fig. 26, in some embodiments, the stop assembly 50 includes a first spacer 53 and a pump cap 24, the first spacer 53 abutting between a second bearing 252 and the pump cap 24. Specifically, the pump cover 24 includes a support portion 52 and at least two connection ribs 51, and the first spacer 53 abuts between the second bearing 252 and the support portion 52. With the above arrangement, wear between the pump cover 24 and the second bearing 252 can be reduced. In a specific implementation, the positioning shaft 222 and the spacer sleeve 23 may be injection molded into an integral structure, and/or the magnetic component 223, the impeller component 221, the first bearing 251 and the second bearing 252 may be injection molded into an integral structure, so as to realize stable connection between the structural components, and facilitate simplifying the assembly process of the fluid control device.

In other embodiments, as shown in fig. 22, the limiting assembly 50 includes a first limiting member 541, a second limiting member 542 and a third limiting member 543, the first limiting member 541 is fixedly connected to the positioning shaft 222, the second limiting member 542 abuts between the first bearing 251 and the connecting portion 232 along the axial direction of the rotor assembly 22, the first limiting member 541 includes a first flange portion 5411 and a columnar portion 5412, 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 along the axial direction of the first limiting member 541, and the third limiting member 543 is located 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 casing 40, the impeller assembly 22 of the electric pump device 20 can be arranged downward (up-down direction in the drawing), and at this time, the structure of the impeller assembly 22 and the like is limited by the limiting assembly 50, so that the electric pump device 20 is assembled with the main casing 40. In this embodiment, the positioning shaft 222 may be injection molded with the spacer sleeve 23 as an integral structure, and/or the magnetic assembly 223, the impeller assembly 221, the first bearing 251 and the second bearing 252 may be injection molded as an integral structure, achieving stable connection between the structural members, and facilitating simplification of the assembly process of the fluid control device.

To achieve the secure connection of the first stop 541 to the positioning shaft 222, in some embodiments, the first stop 541 has a first threaded portion located at the column 5412, and the positioning shaft 222 has a second threaded portion that is threadably connected to the first threaded portion. Or the first limiting member 541 and the positioning shaft 222 may be connected by riveting.

In other embodiments, as shown in fig. 23, at least part of the first bearing 251 is sleeved between the outer peripheral side of the positioning shaft 222 and the supporting portion 52 of the spacer sleeve 23, and the limit assembly 50 is located between the magnetic assembly 223 and the impeller assembly 221 in the axial direction of the rotor assembly 22; the limiting assembly 50 includes a second limiting member 551 and a fourth spacer 552, where the second limiting member 551 is in limiting arrangement with the spacer 23 and is in sealing connection, for example, the second limiting member 551 is welded with the spacer 23, and the second limiting member 551 is located on a side of the magnetic assembly 223 facing away from the connecting portion 232, the second bearing 252 is sleeved between the outer circumferential side of the positioning shaft 222 and the second limiting member 551, and the fourth spacer 552 abuts between the second bearing 252 and the magnetic assembly 223 along the axial direction of the rotor assembly 22. Specifically, the second limiting member 551 includes a second flange portion 5511 and a second cylindrical portion 5512, and along an axial direction of the second limiting member 551, at least a portion of an orthographic projection of the second cylindrical portion 5512 is located inside the orthographic projection of the second flange portion 5511, and the second flange portion 5511 is in sealing connection with the spacer 23. In particular, in this embodiment, the positioning shaft 222 and the magnetic component 223 may be molded as a single piece, the spacer 23 and the first bearing 251 may be molded as a single piece, and the impeller component 221 is assembled and connected with the positioning shaft 222. With the above arrangement, axial limiting of the rotor assembly 22 can be achieved.

Further, as shown in fig. 27 to 44, a fluid control device 1 according to another embodiment of the present invention is provided, and the fluid control device 1 is similar to the fluid control device shown in fig. 1 to 26 in structure, wherein the first housing 11, the stator assembly 130, the rotor assembly 22, the spacer sleeve 23, the positioning shaft 222, and the main housing 40 are all arranged in the same or similar manner as the arrangement shown in fig. 1 to 26. The two embodiments of the present invention provide a fluid control device at least differing in that the driving assembly 100 includes four driving components 13, two of which include stator assemblies and two of which include motors, and four of which include pump assemblies 20 and two of which include valve assemblies 30.

As for the driving assembly 100, referring to fig. 18 to 26, 29 to 31 and 34 to 36, the driving assembly 100 further includes a first housing 11 and a second housing 12, the driving assembly 100 has a first accommodating cavity 101, the first housing 11 and the second housing 12 form at least part of a wall portion of the first accommodating 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 oppositely disposed along a height direction of the driving assembly 100, the first housing 11 and the second housing 12 are buckled to form the first accommodating cavity 101, at least part of at least two driving components 13 is located in the first accommodating cavity 101, so that at least two driving components 13 are integrated in one driving assembly 100, and compared with a plurality of driving assemblies separately disposed, not only the number of wires can be reduced, but also the occupied space of the driving assembly 100 can be reduced. Alternatively, the entire number of driving parts 13 may be in limited connection with the first housing 11, or a part of the number of driving parts 13 may be in limited connection with the first housing 11, which is not limited in the present invention.

In the driving assembly 100, the first housing 11 includes a bottom wall portion 111, a limiting portion 112, and a peripheral side wall 113, where the peripheral side wall 113, the bottom wall portion 111, and the limiting portion 112 are connected, for example, the peripheral side wall 113, the bottom wall portion 111, and the limiting portion 112 may be injection-molded and fixed as an integral structure, or welded and fixedly connected, or connected by a fastener or the like. At least part of the limiting portion 112 protrudes from the bottom wall portion 111 along the height direction of the driving assembly 100, the bottom wall portion 111 and the peripheral side wall 113 form part of the wall portion of the first accommodating cavity 101, at least one driving component 13 includes a stator assembly 130, and a driving component including the stator assembly 130 is defined as a first driving component, and at least part of the first driving component is in limiting connection in the limiting portion 112. At least part of the stator assembly 130 included in the first drive component is located within the limiter 112, or the first drive component may also include a pump housing, at least part of the stator assembly 130 being located within a cavity of the pump housing, for example the stator assembly 130 may be injection-moulded with the pump housing as an insert or fitted into a cavity of the pump housing, in which case the pump housing or at least part of the pump housing and the stator assembly 130 as a whole is located within the limiter 112. By connecting at least part of the first driving component to the limiting portion 112 in a limiting manner, it is convenient to integrate at least two stator assemblies 130 in one driving assembly 100, and compared with a plurality of driving devices, the fluid control device provided by the embodiment of the invention is convenient to reduce the occupied space of the driving assembly 100 and improve the integration level of the driving assembly 100.

In the present embodiment, the number of the driving components 13 included in the driving assembly 100 is four, and there is a gap between the orthographic projections of the four driving components 13 along the height direction of the driving assembly 100, wherein two driving components 13 include stator assemblies 130, and each of the two stator assemblies 130 may be in spacing connection with the corresponding spacing portion 112 and located in the corresponding spacing portion 112. Or in other embodiments, one of the drive components 13 of the drive assembly 100 includes a stator assembly 130, and the other drive component may be a motor or the like drive component, thereby enabling integration of different types of drive components 13.

To facilitate the positioning of the stator assembly 130, in some embodiments, at least a portion of the positioning portion 112 extends away from the first housing cavity 101 from the bottom wall portion 111, where at least a portion of the positioning portion 112 extends away from the fluid assembly from the bottom wall portion 111, and at least a portion of the positioning portion 112 protrudes away from the second housing 12 from the bottom wall portion 111. Alternatively, the stator assembly 130 may be injection-molded and fixed with the limiting portion 112, where the injection-molded and fixed is an injection-molded integrated structure, specifically, the stator assembly 130 may 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 integrated structure, and at this time, the stator assembly 130 may draw out an electrical connection wire during injection molding, and may be electrically connected with the control member through the electrical connection wire; alternatively, the limiting portion 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 is in limiting connection with the first housing 11 by means of fasteners or the like. Through the above arrangement, the stator assembly 130 and the limiting portion 112 are conveniently limited. When the at least two driving parts 13 each include the stator assembly 130, the whole number of stator assemblies 130 and the limiting part 112 may be injection molded into an integral structure, or the whole number of stator assemblies 130 may be assembled into the installation cavity QS formed by the limiting part 112, or a part of the number of stator assemblies 130 and the limiting part 112 may be injection molded into an integral structure, and another part of the number of stator assemblies 130 and the limiting part 112 may be injection molded into an integral structure.

Or as shown in fig. 29, in order to implement the function of the driving component, the driving component of the embodiment of the present invention further includes a control element 15, where the control element 15 may be a circuit board, and defines the driving component including the stator assembly 130 as a first driving component, where the first driving component further includes a pump housing 135, a transition terminal 134 connected to the pump housing 135, and a connection board 136, where the stator assembly 130 is separately disposed with the first housing 11, where at least a portion of the stator assembly 130 and the connection board 136 are located in a cavity of the pump housing 135, and the pump housing 135 is in sealing connection with the first housing 11, for example, the pump housing 135 may be in sealing connection with the first housing 11 through a sealing ring, or the pump housing 135 and the location portion 112 of the first housing 11 are injection molded as an integral structure. The stator assembly 130 includes a coil winding 1303, the coil winding 1303 being electrically connected to pins in a transition terminal 134 by an electrically conductive member in a connection plate 136, a portion of the transition terminal 134 passing through the bottom wall portion 111 and being located in the first receiving cavity 101, the transition terminal 134 being electrically connected to the control member 15. It should be noted that, the driving part herein includes the stator assembly 130 or the motor 132, and the driving part may further include a lead structure or a terminal structure, which enables the control member 15 to be electrically connected with the stator assembly 130 or the motor 132.

In some embodiments, as shown in fig. 36, the fluid control device may further include a spacer sleeve 23, a portion of the spacer sleeve 23 being located at an inner circumferential side of the stator assembly 130, alternatively, the spacer sleeve 23 may be injection molded as a single body with the first housing 11, in which case the stator assembly 130 may be injection molded as a single body with the stopper 112 or the stator assembly 130 may be located in the installation cavity QS of the stopper 112. Or as shown in fig. 19 to 24, the isolation sleeve 23 and the stator assembly 130 are molded into a whole structure or at least part of the stator assembly 130 is positioned in a cavity formed by the isolation sleeve 23, and the isolation sleeve 23 and the stator assembly 130 are integrally and separately arranged and connected with the first shell 11 in a sealing way, and a sealing ring is arranged between the whole structure formed by the isolation sleeve 23 and the stator assembly 130 and the first shell 11, so that the sealing arrangement between the whole structure and the first shell 11 is realized by clamping the sealing ring. Through the above arrangement, the spacing arrangement and the sealing connection between the first housings 11 of the spacer 23 can be realized.

As shown in fig. 25, the driving part including the stator assembly 130 is defined as a first driving part, and the first driving part further includes a pump housing 135, a transition terminal 134 connected to the pump housing 135, and a connection plate 136, where the stator assembly 130 is separately disposed from the first housing 11, at least a portion of the stator assembly 130 and the connection plate are both located in a cavity of the pump housing 135, and the pump housing 135 is in sealing connection with the first housing 11, for example, in fig. 13, the pump housing 135 may be in sealing connection with the first housing 11 through a sealing ring, or, as shown in fig. 14, the pump housing 135 and the limit portion 112 of the first housing 11 may be injection molded as a unitary structure. The stator assembly 130 includes a coil winding 1303, the coil winding 1303 being electrically connected to pins in a transition terminal 134 by an electrically conductive member in a connection plate 136, a portion of the transition terminal 134 passing through the bottom wall portion 111 and being located in the first receiving cavity 101, the transition terminal 134 being electrically connected to the control member 15. It should be noted that, the driving component herein includes the stator assembly 130 or the motor 132, and may further include a lead structure or a terminal structure where the stator assembly 130 or the motor 132 is electrically connected to the control member 15.

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 may be connected between the 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 communication channel 407, the first channel 404 and the second channel 405 are each in communication with 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 pump assemblies 20 is in communication with one of the flow channels 406 located on the outer peripheral side of the one valve assembly 30.

To achieve a fluid communication within the fluid control device 1, in some embodiments, at least part of the main housing 40 is located on a side of the first housing 11 facing away from the first receiving cavity 101, as shown in fig. 27, at least part of the main housing 40 is located on a side of the first housing 11 facing away from the second housing 12, the main housing 40 further comprises connection pipes 41, the connection pipes 41 may be arranged along a circumferential direction of the main housing 40, or the connection pipes 41 may be integrated on at least one mounting surface.

In the embodiment of the present invention, the pump assembly 20 includes a rotor assembly 22, and a spacer 23 of the fluid control device is covered on the outer circumferential side of the rotor assembly 22. By providing the spacer 23, the stator assembly 130 and the corresponding rotor assembly 22 can be isolated from each other, preventing the 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 further includes a positioning shaft 222, the impeller assembly 221 is sleeved on the outer peripheral side of the positioning shaft 222, at least part of the impeller assembly 221 may be located in the first chamber 401, at least part of the first channel 404 and the impeller assembly are arranged 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 part of the wall of the first channel 404 may be coaxially arranged with the rotating shaft of the impeller assembly 221, the mouth of the second channel 405 is located at the edge of the impeller assembly 221 in the circumferential direction, fluid can enter the impeller assembly from the first channel 404, under the centrifugal force of the impeller assembly, the fluid is discharged from the second channel 405, at this time, the first channel 404 may be an inlet channel of the pump assembly 20, and the second channel 405 may be an outlet channel of the pump assembly 20.

In some embodiments, 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 integrally molded, the first chamber 401, the second chamber 402 and the flow channel 406 are located in the cavity shell 45, the communication channel 407 is located in the flow channel plate 44, at least part of the flow channel plate 44 is connected between two fluid subassemblies LK, for example, the flow channel plate 44 may be connected between the pump assembly 20 and the valve assembly 30, or the flow channel plate 44 may be connected between two valve assemblies 30. Further, a plurality of flow passages 406 are distributed on the outer peripheral side of the second chamber 402, one flow passage 406 communicates with one of the first orifice 404 and the second orifice 405 through one communication passage 407, the valve core 30 includes a through cavity 31, and the through cavity 311 is capable of communicating at least two flow passages 406, wherein an extending direction of the communicating orifice 407, an extending direction of the flow passage 406, and an extending direction of the first orifice 404 or the second orifice 405, which are mutually communicated, intersect.

Alternatively, the pump assembly 20 may further include a pump cover 24, the pump cover 24 being sealingly connected to the spacer 23, in particular, the pump cover 24 may be welded to the spacer 23, and the rotor assembly 22 is located in a space formed between the pump cover 24 and the spacer 23; the pump cap 24 has a first port 241 and a second port 242, the rotor assembly 22 is capable of driving fluid communication between the first port 241 and the second port 242, at least a portion of the pump cap 24 is located in the first chamber 401 and the pump cap 24 is sealingly connected to the main housing 40, and the first port 241 is in communication with the first aperture 404 and the second port 242 is in communication with the second aperture 405. In particular embodiments, the pump assembly 20 has a pump chamber 201, a first channel 202 and a second channel 203, the pump cap 24 forming 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 cap 24, the first port 241 located in the first channel, the second port 242 located in the second channel, at least a portion of the first channel 202 located in the first channel 404, and at least a portion of the second channel 203 located in the second channel 405.

To facilitate fluid communication within main housing 40, in some embodiments, first chamber 401 includes a first subchamber A1 and a second subchamber A2, second chamber 402 includes a third subchamber A3 and a fourth subchamber A4, defining two pump assemblies as first pump assembly 20d and second pump assembly 20e, defining two valve assemblies as first valve assembly 30c and second valve assembly 30e, at least a portion of first pump assembly 20d being located in first subchamber A1, at least a portion of second pump assembly 20e being located in second subchamber A2, at least a portion of first valve assembly 30c being located in third subchamber A3, and at least a portion of second valve assembly 30d being located in fourth subchamber A4; wherein, the first subchamber A1 and the second subchamber A3 are communicated with the third subchamber A3. By the arrangement described above, fluid interaction between the two pump assemblies and one of the valve assemblies is facilitated within the main housing 40.

The first chamber 401 and the second chamber 402 each have an opening located on the surface of the main housing 40, and in order to facilitate assembly of the pump assembly 20 and the valve assembly 30, the first mounting opening of the first chamber 401 and the second mounting opening of the second chamber 402 are respectively located on different surfaces of the main housing 40, as shown in fig. 27, the opening of the first chamber 401 and the opening of the second chamber 402 are respectively located on two sides of the main housing 40 that are oppositely located in the height direction, at this time, the main housing 40 includes a cavity housing 45 and a bottom cover, and the bottom cover and the cavity housing 45 can be in sealing connection through a welding process or the like.

In particular embodiments, the main housing 40 includes a first end S1 and a second end S2, the first end S1 and the second end S2 are disposed opposite to each other along a height direction of the main housing 40, a first mounting opening of the first chamber 401 is located at the first end S1, a second mounting opening of the second chamber 402 is located at the second end S2, and the driving assembly 100 is located at a side of the first end S1 facing away from the second end S2. Through the above arrangement, the pump assembly 20 can be assembled with the main housing 40 at one side of the main housing 40, and the valve assembly 30 is assembled with the main housing 40 from the other side of the main housing 40, so that the driving component for driving the pump assembly 20 and the driving component for driving the valve assembly 30 are arranged at the same side, and the integration of a plurality of driving components is facilitated. When the number of valve assemblies 30 is at least two, the entire number of valve assemblies 30 can be mounted through the same side of the main housing 40, so as to facilitate uniform assembly reference, and then the entire number of pump assemblies 20 can be mounted from the other side of the main housing 40, so as to facilitate reduction of assembly errors, and better realization of coaxiality between at least two valve assemblies 30 and the corresponding driving members 13. It will be appreciated that the first mounting port of the first chamber 401 and the second mounting port of the second chamber 402 may also be disposed on the same side of the main housing 40 such that the pump assembly 20 and the valve assembly 30 are assembled from the same side of the main housing, as the invention is not limited in this regard.

The valve core structures of the two valve assemblies 30 provided in the embodiment of the present invention are similar, including a first valve assembly 30c and a second valve assembly 30d, where one valve core is defined as a first valve core 31c, the other valve core is defined as a second valve core 31d, the number of flow channels 406 located on the outer peripheral side of the first valve core 31c may be at least five, and the number of flow channels 406 located on the outer peripheral side of the second valve core 31d may be at least five. Further, one of the pump assemblies 20 is defined as a first pump assembly 20d, the other pump assembly 20e, wherein the first port 404d corresponding to the first pump assembly 20d and the first port 404e corresponding to the second pump assembly 20e are respectively communicated with the third sub-chamber A3 through the communication passage 407, the flow passage defining the flow passage 406 located at the outer peripheral side of the first valve core 31c is defined as a first flow passage 4061, the first flow passage 4061 is located at the side wall portion of the third sub-chamber A3, the flow passage 406 located at the outer peripheral side of the second valve core 31d is defined as a second flow passage 4062, the second flow passage 4062 is located at the side wall portion of the fourth sub-chamber A4, in this embodiment, the number of the first flow passages 4061 is five, the number of the second flow passages 4062 is five, the number of the first flow passages 4061 and the second flow passages 4062 may be set according to the user's requirement, for example, the number may be 3, 4, 6, 7 or more, the number of the first flow passages 4061 and the second flow passages 4062 may be the same. By the above arrangement, one pump assembly 20 and one valve assembly 30 can be made to cooperate, enabling control of the fluid.

To facilitate integration of each pump assembly with the drive components of the valve assembly, in some embodiments, the side of the first pump assembly 20d and the second pump assembly 20e facing away from the main housing 40 are at the same elevation along the height of the fluid control device, facilitating assembly with the respective corresponding stator assemblies, and portions of the valve assembly 30 are at the same elevation as portions of the pump assembly 20, so as to reduce the axial height of the fluid control device. Specifically, portions of the first valve assembly 30c may be located at the same level as portions of the first pump assembly 20d and portions of the second pump assembly 20 e.

Further, in some embodiments, the main housing 40 further includes a first communication channel 407d and a second communication channel 407e, the first communication channel 407d communicating the first subchamber A1 with the third subchamber A3, the second communication channel 407e communicating the second subchamber A2 with the third subchamber A3; at least part of the first communication passage 407d and at least part of the second communication passage 407e are disposed at intervals in the circumferential direction of the wall portion of the third subchamber A3.

To better achieve fluid communication between the pump assembly 20 and the valve assembly 30, as shown in fig. 36 and 37, the main housing 40 includes a first port 404 and a second port 405, the first port 404 may be an inlet passage of the pump assembly 20 and the second port 405 may be an outlet passage of the pump assembly 20. In the present embodiment, the first orifice 404 includes a first sub-orifice 404d and a second sub-orifice 404e, the second orifice 405 includes a third sub-orifice 405d and a fourth sub-orifice 405e, the first sub-orifice 404d and the third sub-orifice 405d are both in communication with the first sub-chamber A1, and the second sub-orifice 404e and the fourth sub-orifice 405e are both in communication with the second sub-chamber A2; the first pump assembly 20d includes a first impeller assembly 221d, the second pump assembly 20e includes a second impeller assembly 221e, at least a portion of a wall portion of the first sub-port 404d is disposed coaxially with a rotation axis of the first impeller assembly 221d, at least a portion of a mouth portion of the third sub-port 405d is located at a circumferential edge of the first impeller assembly 221d, at least a portion of a wall portion of the second sub-port 404e is disposed coaxially with a rotation axis of the second impeller assembly 221e, and at least a portion of a mouth portion of the fourth sub-port 405e is located at a circumferential edge of the second impeller assembly 221 e. The first sub-port 404d communicates with the third sub-chamber A3 through the first communication passage 407d, and the second sub-port 404e communicates with the third sub-chamber A3 through the second communication passage 407 e.

As shown in connection with fig. 27 to 44, the first spool includes at least three conduction chambers, the conduction chamber of the first spool 31c being capable of conducting at least two first flow passages 4061 and isolating at least one first flow passage 4061; the conduction chamber of the second spool 31d is capable of conducting at least two second flow passages 4062 and isolating at least one second flow passage 4062. By the above arrangement, various operation modes of the fluid control device can be realized. The flow passage isolation herein means that the flow passage is not communicated with any other flow passage after passing through the corresponding valve element.

The mode of operation of the first valve assembly 30c is 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, respectively, the second sub-flow channel P2 is communicated with the channel corresponding to the first pump assembly 20d, and the fourth sub-flow channel P4 is communicated with the channel corresponding to the second pump assembly 20 e. By adjusting the positions of the plurality of first flow passages in the wall portion of the corresponding third subchamber A3 and the opening angles between the three conducting chambers of the first valve element 31c, the first valve assembly 30c of the embodiment of the present invention has at least one of the following operation modes.

In the first operation mode, as shown in fig. 41, the first valve core 31c is located at the first position, one of the conducting cavities of the first valve core 31c communicates the first sub-channel P1 with the fourth sub-channel P4, the other conducting cavity communicates the second sub-channel P2 with the third sub-channel P3, and the other conducting cavity isolates the fifth sub-channel P5.

In the second operation mode, as shown in fig. 42, the first valve core 31c is located at the second position, one of the conducting cavities of the first valve core 31c communicates the fifth sub-flow path P5 with the fourth sub-flow path P4, the other conducting cavity communicates the second sub-flow path P2 with the third sub-flow path P3, and the other conducting cavity isolates the first sub-flow path P1.

In the third operation mode, as shown in fig. 43, the first valve core 31c is located at the third position, one of the conducting cavities of the first valve core 31c communicates the third sub-flow path P3 with the fourth sub-flow path P4, the other conducting cavity communicates the second sub-flow path P2 with the first sub-flow path P1, and the other conducting cavity isolates the fifth sub-flow path P5.

In the fourth operation mode, as shown in fig. 44, the first valve element 31c is located at the fourth position, one of the through cavities of the first valve element 31c communicates the third sub-flow path P3 with the fourth sub-flow path P4, the other through cavity communicates the second sub-flow path P2 with the fifth sub-flow path P5, and the other through cavity isolates the first sub-flow path P1.

The working mode of the second valve assembly 30d for conducting the second flow channel according to the embodiment of the present invention may be the same as the working mode of the first valve assembly 30c, and will not be described in detail. The corresponding flow passages of the two valve assemblies can be communicated through an external pipeline, or the flow passages can be arranged on the main casing 40, which is not described in detail in the invention.

Further, the driving 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, the second pump assembly 20e includes a second rotor assembly 22e, the first rotor assembly 22d can be located in a magnetic field range of the first stator assembly 130d, the second rotor assembly 22e can be located at a magnetic field periphery of the second stator assembly 130e, the first valve core 31c of the first valve assembly 30c is in driving connection with the first motor 132c, and the second valve core 31d of the second valve assembly 30d is in driving connection with the second motor 132 d. Wherein the driving assembly 100 has a first accommodating chamber 101, the first housing 11 forms at least a part of a wall portion of the first accommodating chamber 101, and at least a part of the first stator assembly 130d, at least a part of the second stator assembly 130e, at least a part of the first motor 132c, and at least a part of the second motor 132d are all located in the first accommodating chamber 101.

Further, the driving assembly 100 may further include a control member 15, the control member 15 is disposed in the first accommodating chamber 101, and the first stator assembly 130d, the second stator assembly 130e, the first motor 132c and the second motor 132d are electrically connected to the control member 15. To reduce the area of the control member 15, as shown in fig. 26, 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 in the outer circumferential direction of the fluid control device; the driving assembly 100 further includes a first gear assembly 133c and a second gear assembly 133d, the first motor 132c is in driving connection with the first valve core 31c through the first gear assembly 133c, the second motor 132d is in driving connection with the second valve core 31d through the second gear assembly 133d, the first motor 132c and the second motor 132d are arranged along a first direction X, the first stator assembly 130d and the second stator assembly 130e are arranged along a second direction Y, and the first direction X and the second direction Y intersect; wherein, the part of the first gear assembly 133c and the part of the second gear assembly 133d are located between the first motor 132c and the second motor 132d, so that the control parts of the first motor 132c and the second motor 133d are intensively arranged, and the output terminal of the first stator assembly 130d and the output terminal of the second stator assembly 130e are close to each other and located at the middle position of the driving assembly 100. The control portion of the pump assembly 20 and the control portion of the valve assembly 30 at this time may be provided in a relatively centralized manner, facilitating a reduction in the area of the control member 15.

Further, as shown in fig. 36, in some embodiments, the fluid control device 1 further includes a limiting assembly 50, where the limiting assembly 50 may be located in the fluid assembly 200, the pump assembly 20 includes a rotor assembly 22, a positioning shaft 222 and a spacer sleeve 23, at least a portion of the rotor assembly 22 is sleeved with the stator assembly 130, the spacer sleeve 23 is covered on a portion of an outer peripheral side of the rotor assembly 22, and at least a portion of the spacer sleeve 23 is located between the stator assembly 130 and the rotor assembly 22, where the positioning shaft 222 is sleeved on an inner side of the rotor assembly 22, a first side of the positioning shaft 222 in an axial direction is disposed in a limiting manner with the spacer sleeve 23, the limiting assembly 50 is disposed near a second side of the positioning shaft 222 in an axial direction, and the limiting assembly 50 is disposed in a limiting manner with the rotor assembly 22, for example, the limiting assembly 50 abuts against the rotor assembly 22. In this embodiment, the axial direction of the positioning shaft 222 is parallel or coincident with the height direction of the fluid control device. Through the above arrangement, both sides of the axial direction of the positioning shaft 222 can be limited, so that the axial movement of the positioning shaft 222 is improved, the axial movement of the rotor assembly 22 is further improved, and the noise of the pump assembly 20 is reduced.

In some embodiments, when the pump assembly 20 further includes a pump cover 24, at least a portion of the pump cover 24 is located on the outer peripheral side of the impeller assembly 221, and at least a portion of the pump cover 24 is located in the first chamber 401, at least a portion of the stop assembly 50 is located on the pump cover 24, the stop assembly 50 has a groove 521, and an end of the second side of the positioning shaft 222 is located in the groove 521 and abuts against a bottom wall portion of the groove 521. Through the arrangement, the isolating sleeve 23 is matched with the pump cover 24, so that the axial limit of the rotor assembly 22 is realized. Alternatively, the pump cap 24 may be injection molded as a unitary structure with the main housing 40; or the pump cover 24 can be separately arranged with the main casing 40 and in limited connection, and a sealing ring is arranged between the pump cover 24 and the main casing 40 to realize the sealing of the two.

In summary, according to the fluid control device 1 provided by the embodiment of the invention, the fluid control device 1 includes a driving assembly 100 and at least two fluid subassemblies LK, the driving assembly 100 includes at least two driving components 13, wherein at least one driving component 13 includes a stator assembly 130, at least a portion of the stator assembly 130 is limitedly connected in a limiting portion 112 of the first housing 11, at least one fluid subassembly LK includes a pump assembly 20, the pump assembly 20 includes a rotor assembly 22, the rotor assembly 22 is located in a magnetic field range of the corresponding stator assembly 130, and the driving component 13 is capable of driving the corresponding fluid subassemblies LK to act, so that the driving assembly 100 includes the driving component 13 for driving the at least two fluid subassemblies LK to act. Further, at least two fluid subassemblies LK may also be integrated into one main housing 40, so as to facilitate increasing the integration level of the fluid control device 1 and reducing the occupied space of the fluid control device 1. And through setting up the locating part, can carry out axial spacing to location axle 222 to structure such as rotor subassembly 22 play better axial spacing effect.

In another aspect, an embodiment of the present invention further provides an electric pump device, including a stator assembly 130, a pump assembly 20 and a limiting assembly 50, where the pump assembly 20 includes a rotor assembly 22, a positioning shaft 222, a spacer sleeve 23 and a pump cover 24, at least a portion of the rotor assembly 22 is sleeved with the stator assembly 130, optionally, at least a portion of the rotor assembly 22 is located on an inner side of the stator assembly 130, the spacer sleeve 23 is covered on a portion of an outer peripheral side of the rotor assembly 22, and at least a portion of the spacer sleeve 23 is located between the stator assembly 130 and the rotor assembly 22; the positioning shaft 222 is sleeved on the inner side of the rotor assembly 22, a first side of the positioning shaft 222 in the axial direction is limited by the spacer sleeve 23, the limiting assembly 50 is near a second side of the positioning shaft 222 in the axial direction, and the limiting assembly 50 is abutted to the rotor assembly 22. With the above arrangement, axial restraint of the rotor assembly 22 and the positioning shaft 222 is facilitated. In the embodiment of the present invention, the stator assembly 130, the pump assembly 20 and the limiting assembly 50 are the same as or similar to the structures of the stator assembly 130, the pump assembly 20 and the limiting assembly 50 provided in any one of the embodiments of fig. 1 to 27, and are not described in detail.

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 an axial direction of the rotor assembly 22, at least a portion of the magnetic assembly 223 is sleeved on an inner surface side of the stator assembly 130, the spacer 23 includes an end wall portion 231 and a connecting portion 232, and an 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, the first bearing 251 and the second bearing 252 being arranged along an axial direction of the rotor assembly 22, the first bearing 251 being located between the connection 232 and the magnetic assembly 223, and the second bearing 252 being located between the magnetic assembly 223 and the spacing assembly 50. Through the above arrangement, stable rotation of the rotor assembly 22 is facilitated, and axial limiting of the rotor assembly 22 is facilitated.

As shown in fig. 22, in some embodiments, the limiting assembly 50 includes a first limiting member 541, a second limiting member 542, and a third limiting member 543, the first limiting member 541 is fixedly connected to the positioning shaft 222, the second limiting member 542 is abutted between the first bearing 251 and the connecting portion 232 along the axial direction of the rotor assembly 22, the first limiting member 541 includes a first flange portion 5411 and a columnar portion 5412, at least a portion of an orthographic projection of the columnar portion 5412 is located inside of the orthographic projection of the first flange portion 5411 along the axial direction of the first limiting member 541, and the third limiting member 543 is located between the first flange portion 5411 and the second bearing 252.

Alternatively, as shown in fig. 23, in some embodiments, the spacing assembly 50 is located between the magnetic assembly 223 and the impeller assembly 221; the limiting assembly 50 includes a second limiting member 551 and a fourth spacer 552, the second limiting member 551 is in limiting arrangement with the spacer 23 and is in sealing connection, the second limiting member 551 is located at one side of the magnetic assembly 223 facing away from the connecting portion 232, the second bearing 252 is sleeved between the outer circumferential side of the positioning shaft 222 and the second limiting member 551, and the fourth spacer 552 is abutted between the second bearing 252 and the magnetic assembly 223 along the axial direction of the rotor assembly 22.

In the electric pump device, the electric pump device may include a pump casing, the pump casing is arranged outside the stator assembly, and at least part of the casing is located on one side of the stator assembly away from the rotor assembly, and the limiting manner of the pump casing and the stator assembly is similar to that of the first casing 11 and the stator assembly 130 in any of the above embodiments, for example, the stator assembly 130 may be integrally molded with the pump casing or the stator assembly 130 may be in a cavity of the pump casing. In a specific implementation, when the stator assembly 130 and the pump casing are molded into an integral structure, the isolation sleeve 23 and the pump casing can be molded into an integral structure, or the isolation sleeve 23 and the pump casing are separately arranged and connected in a sealing way; when the stator assembly 130 is assembled to the installation cavity QS of the pump casing, the spacer 23 may be integrally injection-molded with the pump casing, or the spacer 23 may be separately disposed and hermetically connected with the pump casing, or the spacer 23 may be integrally injection-molded with the stator assembly 130, and the spacer 23 and the stator assembly 130 may be integrally disposed and hermetically connected with the pump casing. When the number of the stator assemblies 130 is at least two, the limiting connection modes of different stator assemblies 130 and the first housing 11 may be the same or different, and the connection modes of the spacer 23 corresponding to different stator assemblies 130 and the first housing 11 may be the same or different.

In still another aspect, referring to fig. 1 to 45, an embodiment of the present invention further provides a method 1000 for manufacturing a fluid control device, where the method 1000 for manufacturing a fluid control device includes:

in step S110, the driving assembly 100 is formed.

In some embodiments, step S100, forming the drive assembly 100 includes: providing a first housing 11 and at least two driving components 13, wherein the first housing 11 is provided with a first accommodating cavity 101, the first housing 11 comprises a bottom wall part 111 and a limiting part 112, the bottom wall part 111 forms part of the wall part of the first accommodating cavity 101, at least part of the limiting part 112 protrudes from the bottom wall part 111, and at least one driving component 13 comprises a stator assembly 130; and at least partially limit-connect the stator assembly 130 within the limit 112. The limiting portion 112 protrudes from the bottom wall portion 112 along the height direction of the driving assembly 100, and the limiting portion 112 may extend in a direction away from the first accommodating cavity 101.

In some embodiments, the at least partially positive connection of the stator assembly 130 to the interior of the positive stop 112 includes: taking the stator assembly 130 as an injection molding insert, and injecting at least part of the stator assembly 130 into the limit part 112 to form an integral structure through an injection molding process; or the spacing portion 112 includes a mounting cavity QS, at least a portion of the stator assembly 130 is mounted in the mounting cavity QS and is in spacing engagement with the spacing portion 112 of the first housing 11, at which time at least a portion of the output terminals 1304 in the stator assembly 130 are positioned in the first receiving cavity 101 so as to electrically connect the output terminals 1304 with the control member 15 or an external control member in the drive assembly 100.

In other embodiments, the fluid control device may also include a spacer 23, where after at least part of the stator assembly 130 is limitedly connected to the limiting portion 112, the spacer 23 and the first housing 11 may be injection molded into an integral structure, so that part of the spacer 23 is located inside the stator assembly 130, and the spacer 23 is in sealing connection with the first housing 11, so as to facilitate isolating the stator assembly 130 from the outside, and prevent water vapor from affecting the stator assembly 130.

At step S120, at least a portion of the fluidic component 200 is formed.

In this embodiment, step S300 forming the fluid assembly 200 includes: at least two fluid subassemblies LK are provided and a main housing 40 is provided.

In the present embodiment, at least one fluid subassembly LK includes a pump assembly 20, as shown in FIGS. 1-26, the number of fluid subassemblies LK in the embodiment of the present invention is five, three of which include pump assemblies 20, and the other two of which include valve assemblies 30. In other embodiments, the number of fluid subassemblies LK may be two, both fluid subassemblies LK may include pump assembly 20, or one of the fluid subassemblies LK may include pump assembly 20 and the other fluid subassembly LK may include valve assembly 30. The number of fluid subassemblies LK can be set according to the needs of the user, as can the number of pump assemblies 20 and valve assemblies 30 included.

The main housing 40 has a first chamber 401, a first orifice 404 and a second orifice 405 arranged at intervals, and the first orifice 404 and the second orifice 405 are both communicated with the first chamber 401; at this time, step S120, forming at least part of the fluid assembly 200 may further include: the pump assembly 20 is assembled with the main housing 40 such that at least a portion of the pump assembly 20 is positioned in the first chamber 401 such that rotation of the rotor assembly 22 drives fluid communication between the first port 404 and the second port 405. With the above arrangement, the pump assembly 20 can be provided to the first chamber 401.

In particular implementations, when at least two fluid subassemblies LK each include a pump assembly 20, a plurality of numbers of pump assemblies 20 may each be assembled with the main housing to form at least a portion of fluid assembly 200. Specifically, the pump assembly 20 may include the spacer sleeve 23 and the rotor assembly 22, in which case the step of assembling the pump assembly 20 with the main housing 40 may include the step of forming the pump assembly 20, for example, the rotor assembly 22 may be first sleeved inside the spacer sleeve 23 such that the spacer sleeve 23 and the rotor assembly 22 are assembled into a unitary structure to form the pump assembly 20, and then the unitary structure is assembled with the main housing 40. Alternatively, when the pump assembly 20 further includes a pump cap, the spacer sleeve 23, the rotor assembly 22, and the pump cap 24 may be assembled as a unitary structure. Or the step of assembling the pump assembly 20 with the main housing 40 may also include assembling the spacer sleeve 23 and the rotor assembly 22 to the main housing 40 separately, and then sealing the spacer sleeve 23 to the main housing 40. Still alternatively, when the pump assembly 20 further includes the stop 50, the stop 50 can be in a stop fit with the positioning shaft 222 as a unitary structure, which is then assembled with the main housing 40; alternatively, when the limiting member 50 is located in the main housing 40, the pump assembly 20 and the main housing 40 may be assembled to implement axial limiting of the positioning shaft 222 and the rotor assembly 22, which is not limited in this disclosure.

In some embodiments, when at least one fluid subassembly LK comprises pump assembly 20, at least one fluid subassembly LK comprises valve assembly 30, valve assembly 30 comprises valve spool 31 and valve spool shaft 32, at least one drive component 13 comprises motor 132, main housing 40 further comprises bottom cap and cavity housing 45, at which time step S120, forming at least part of fluid assembly 200 comprises:

step 1, a main housing 40 is provided, wherein the main housing 40 is provided with a first chamber 401, a second chamber 402, a first pore canal 404, a second pore canal 405 and a plurality of flow passages 406, the first chamber 401 and the second chamber 402 are arranged at intervals, and the first pore canal 404 and the second pore canal 405 are communicated with the first chamber 401;

step 2, assembling the pump assembly 20 with the main housing 40, such that at least part of one pump assembly 20 is located in one first chamber 401, so that the rotor assembly 22 rotates to drive the fluid to circulate in the first channel 404 and the second channel 405, so as to realize the driving function of the pump assembly 20 on the fluid;

step 3, at least part of the valve assemblies 30 is assembled into the corresponding chambers of the main housing 40, that is, at least part of one valve assembly 30 is assembled into one second chamber 402 of the main housing 40, and the valve assembly 30 is in limit connection with the main housing 40, so that the conducting cavity 31 of the valve core 31 can conduct at least two flow channels 406. Specifically, the spool 31 and spool shaft 32 may be assembled to the second chamber 402 with at least a portion of the spool shaft 32 being drivingly connected to the output shaft of the motor 132 through the second chamber 402, or with the gear assembly 133 being drivingly connected to the drive assembly 100 when the drive assembly 100 further includes the gear assembly 133, with at least a portion of the spool shaft 32 being drivingly connected to the gear assembly 133 through the second chamber 402.

And 4, sealing and connecting the bottom cover with the main shell 40.

The bottom cap may be sealed to the main housing, such as by a welding process, to provide a positive connection of the valve assembly 30 to the main housing 40. In particular implementations, the valve assembly 30 may include a first valve assembly 30a and a second valve assembly 30b, the main housing 40 including a chamber housing 45, a first bottom cover 42, and a second bottom cover 43, the first bottom cover 42 being understood that steps 2 and 3 may be performed simultaneously or one of steps 2 and 3 may be performed first followed by the other.

Step S130, the driving assembly 100 is hermetically connected with the fluid assembly 200.

In particular implementations, the drive assembly 100 may be mated with the pump assembly 20, for example, such that at least a portion of the rotor assembly 22 of the pump assembly 20 is positioned inside the corresponding stator assembly 130 and a portion of the spacer sleeve 23 is positioned between the stator assembly 130 and the corresponding rotor assembly 22, the rotor assembly 22 being capable of being positioned within the magnetic field of the corresponding stator assembly 130, the magnetic field being generated when the coil windings in the stator assembly 130 are energized, thereby facilitating rotation of the stator assembly 130 to drive the rotor assembly 22. To achieve a sealed connection between the drive assembly 100 and the fluid assembly 200, a seal ring may be provided between the drive assembly 100 and the fluid assembly 200, the drive assembly 100 and the fluid assembly 200 may be connected by fasteners such as screws, and the seal ring may be compressed to achieve the drive assembly 100 and the fluid assembly 200.

In some embodiments, when the fluid subassembly LK further includes the 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, the second chamber 402 has a second mounting port K2, wherein the first mounting port K1 is located at a first side portion of the cavity shell 45, the second mounting port K2 is located at a second side portion of the cavity shell 45, the first side portion and the second side portion are located at two sides of the cavity shell in the height direction, the plurality of flow channels 406 are distributed at the outer peripheral side 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 distributed at different sides of the main housing 40, for example, in fig. 1 to 25, the first mounting port K1 of the first chamber 401 and the second mounting port K2 of the second chamber 402 are distributed at two opposite sides of the main housing 40 arranged in the height direction thereof.

At this time, step S120, forming at least part of the fluidic component 200 includes: assembling the pump assembly 20 with the main housing 40 from one side of the main housing 40, with the pump assembly 20 passing through the first mounting port K1, such that at least part of one pump assembly 20 is located in one first chamber 401; at least a portion of one valve assembly 30 is assembled into one second chamber 402 of the main housing 40 from the other side of the main housing 40, with at least a portion of the valve assembly 30 passing through the second mounting port K2 such that at least a portion of the valve assembly 30 is located in the second chamber 402. In the embodiment, when the valve assembly 30 includes the valve core 31 and the valve core shaft 32, the valve core shaft 31 and the valve core 32 may pass through the second mounting port K2, so 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, so as to facilitate the driving connection of the valve core shaft 32 with the transmission assembly such as the motor 132. When the number of the pump assemblies 20 is at least two, the entire number of the pump assemblies 20 may be assembled with the main housing 40 through the first mounting port K1 from one side of the main housing 40, the entire number of the valve assemblies 30 may be assembled with the main housing 40 through the second mounting port K2 from the other side of the main housing 40, and then the bottom cover may be hermetically coupled with the cavity case 45 of the main housing 40.

Alternatively, at least part of the pump assembly 20 may be assembled into the first chamber 401 of the main housing 40, and then the driving assembly 100 is hermetically connected to the main housing 40 equipped with the pump assembly 20, and at this time, step S130, after hermetically connecting the driving assembly 100 to the fluid assembly 200, may further include: at least a portion of the valve assembly 30 is fitted into a corresponding second chamber 402 of the main housing 40 and the valve assembly 30 is positively connected to the main housing 40. In some embodiments, the main housing 40 further includes a bottom cover that can be sealingly coupled to the cavity shell of the main housing 40 after at least a portion of the valve assembly 30 is assembled into a corresponding cavity of the main housing 40, such as by a welding process to seal the bottom cover to the main housing, thereby effecting a positive connection of the valve assembly 30 to the main housing 40 and sealing the second mounting port K2.

In summary, according to the method for manufacturing a fluid control device of the present invention, at least two driving components 13 are conveniently integrated into one driving assembly, and compared with providing each fluid subassembly LK with a separate driving device, the fluid control device 1 of the present invention can reduce the occupied space of the driving assembly 100 and increase the integration degree of the driving assembly 100. Further, at least two fluid subassemblies LK may also be integrated into one main housing 40, so as to facilitate increasing the integration level of the fluid control device 1 and reducing the occupied space of the fluid control device 1. And through setting up the locating part, can carry out axial spacing to location axle 222 to structure such as rotor subassembly 22 play better axial spacing effect. The structure of the fluid control device manufactured by the manufacturing method of the fluid control device is shown in fig. 1 to 44, and will not be described again.

It should be noted that: the above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, for example, the directional definitions of "front", "rear", "left", "right", "upper", "lower", etc. although the present invention has been described with reference to the above embodiments, it should be understood by those skilled in the art that the present invention may be modified, combined or substituted by equivalent thereto, and all technical solutions and modifications thereof without departing from the spirit and scope of the present invention shall be covered by the claims of the present invention.

Claims

1. The fluid control device is characterized by comprising a driving assembly and a fluid assembly, wherein the driving assembly is connected with the fluid assembly, the fluid assembly comprises at least two fluid subassemblies, the driving assembly comprises a first shell and a driving part, the driving part can be matched with the corresponding fluid subassemblies, the first shell comprises a limiting part, at least one driving part comprises a stator assembly, the limiting part comprises a mounting cavity, the stator assembly is arranged separately from the first shell, at least part of the stator assembly is positioned in the mounting cavity, and at least one other driving part is in limiting connection with the first shell;

2. The fluid control device of claim 1 wherein the first housing further comprises a bottom wall portion from which at least a portion of the stopper portion protrudes, the drive assembly having a first receiving cavity, the bottom wall portion forming part of a wall portion of the first receiving cavity, the drive assembly including a conductive pin injection-molded with the bottom wall portion, one end of the conductive pin being located in the mounting cavity and the other end of the conductive pin being located in the first receiving cavity;

the stator assembly includes an output pin and a coil winding, the coil winding is electrically connected with the output pin, and the output pin is electrically connected with the conductive pin.

3. The fluid control device of claim 2, wherein the drive assembly further comprises a second housing comprising a top cover portion, the top cover portion and the bottom wall portion being disposed opposite each other in a height direction of the drive assembly, at least a portion of the stopper portion extending from the bottom wall portion in a direction away from the top cover portion;

The rotor assembly comprises a magnetic assembly, at least part of the magnetic assembly is sleeved on the inner side of the stator assembly, and the magnetic assembly can be located in the magnetic field range of the stator assembly.

4. A fluid control device as claimed in claim 3 wherein the pump assembly further comprises a spacer sleeve, a portion of the spacer sleeve being located on an inner peripheral side of the stator assembly and between the stator assembly and the corresponding rotor assembly, and another portion of the spacer sleeve being located on a side of the first housing facing away from the second housing in a height direction of the drive assembly;

the isolation sleeve is fixed with the stator assembly through injection molding, and the isolation sleeve and the stator assembly are integrally and separately arranged with the first shell and are in sealing connection.

5. The fluid control device of claim 4 wherein at least two of the fluid subassemblies each comprise a pump assembly, at least two of the drive components each comprise a stator assembly, one of the stator assemblies is capable of driving rotation of the rotor assembly in a corresponding one of the pump assemblies, the number of limit stops is at least two, and each of the stator assemblies is located within a corresponding mounting cavity of the limit stop.

6. The fluid control device of claim 4 wherein at least one of said fluid subassemblies comprises said pump assembly, at least one of said fluid subassemblies comprises a valve assembly, at least one of said drive components comprises said stator assembly, and at least one of said drive components comprises a motor, said motor is limitedly coupled to said first housing, and at least a portion of said motor is located in said first receiving chamber, said valve assembly comprises a valve cartridge, said valve cartridge is drivingly coupled to an output shaft of said motor.

7. The fluid control device of claim 5 or 6, further comprising a main housing, at least a portion of the main housing and the drive assembly being juxtaposed in a height direction of the fluid control device, the main housing being in sealing engagement with the spacer, at least a portion of the main housing being located on a side of the first housing facing away from the first receiving chamber, the main housing having a first chamber, a first port and a second port, both of the first port and the second port being in communication with the first chamber, at least a portion of one of the pump assemblies being located in the first chamber, the rotor assembly being capable of driving fluid flow between the first port and the second port.

8. The fluid control device of claim 7, wherein the spacer sleeve is provided separately from the first housing and is in sealing connection therewith, the spacer sleeve being injection-molded and fixed with the main housing, or the spacer sleeve is provided separately from the main housing and is in sealing connection therewith by a seal ring;

or the isolation sleeve is fixed with the first shell in an injection molding way, and the isolation sleeve is connected with the main shell in a sealing way through a sealing ring.

9. The fluid control device of claim 8 wherein the spacer is provided separate from the main housing and is sealingly connected by a seal ring, the main housing having a first mounting opening toward the drive assembly, the first mounting opening being located on a side of the main housing toward the drive assembly, at least a portion of the pump assembly being located in the first chamber through the first mounting opening.

10. The fluid control device of claim 9 wherein at least one of the fluid subassemblies comprises a valve assembly including a valve cartridge, the main housing further including a second chamber spaced from the first chamber, a communication passage, and a plurality of flow passages at least partially located in the second chamber, the plurality of flow passages being distributed on an outer peripheral side of the second chamber, one of the first and second ports being in communication with one of the flow passages through one of the communication passages.

11. The fluid control device of any one of claims 1-6, 8-10 wherein the drive assembly has a first receiving cavity, a portion of the stator assembly being located in the first receiving cavity, at least one of the drive components including a motor, the motor being in limited connection with the first housing and the motor being located in the first receiving cavity;

the driving assembly comprises a control piece and a connecting terminal, wherein the control piece is located in the first accommodating cavity, one end portion of the connecting terminal is exposed to the outside, and the connecting terminal is electrically connected with the motor and the stator assembly through the control piece.

12. The driving assembly is characterized by comprising a first shell and driving components, wherein the first shell comprises a limiting part, at least one driving component comprises a stator assembly, the limiting part comprises an installation cavity, the stator assembly is separately arranged with the first shell, at least part of the stator assembly is located in the installation cavity, and at least one driving component is in limiting connection with the first shell.

13. A method of manufacturing a drive assembly, comprising:

assembling at least a portion of the stator assembly to the mounting cavity;