Fluid control device, manufacturing method thereof, and fluid control system

Abstract

A fluid control device, a method for manufacturing the same, and a fluid control system are disclosed. The fluid control device (1000) includes at least two fluid units (LK) and at least two drive units (100) arranged at intervals. Each drive unit (100) includes a stator unit (10), and each fluid unit (LK) includes an operating member (LK1). The stator unit (10) can operate the operating member (LK1). The fluid control device (1000) further includes a connection unit (20) and connection terminals (200). The connection unit (20) includes a connection housing (21) and connection lead wires (22). At least a part of the connection housing (21) is connected between at least two drive units (100). The connection lead wires (22) are located within the connection housing (21). The connection terminals (200) are electrically connected to the stator units (10) in some of the drive units (100), and are electrically connected to the stator units (10) in some other drive units (100) by the connection lead wires (22). The fluid control device (1000) simplifies the wiring structure of the fluid control system and further simplifies the fluid control system.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application filed with the China National Intellectual Property Administration on June 29, 2022, with the application number 202210756044.1 and the invention title "Fluid Control Device, Manufacturing Method Thereof, and Fluid Control System", and all of its contents are incorporated herein by reference.

[0002] The present invention relates to the field of fluid control, and specifically to a fluid control device, a manufacturing method of this fluid control device, and a fluid control system.

Background Art

[0003] Generally, a fluid control system includes at least two fluid elements. In order to operate these fluid elements, each fluid element is provided with a corresponding drive unit. If there are many such drive units, the wiring structure becomes complex, which is disadvantageous for simplifying the fluid control system.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The object of the present invention is to provide a fluid control device, a manufacturing method thereof, and a fluid control system, so as to simplify the wiring structure of this fluid control system and further simplify the fluid control system.

Means for Solving the Problems

[0005] According to one aspect, the fluid control device of the present invention includes at least two fluid units and at least two drive units. Each of the drive units includes a stator unit, and each of the fluid units includes an operating member. The stator unit is capable of operating the operating member. The fluid control device further includes a connection unit and connection terminals. The connection unit includes connection leads, and the connection terminals are electrically connected to the stator units in some of the drive units and are electrically connected to the stator units in some other of the drive units by the connection leads.

[0006] According to another aspect, the present invention further provides a method for manufacturing the fluid control device of the present invention. A step of providing at least a part of at least two drive units, each of the drive units including a stator unit. A step of mounting the drive unit on a corresponding fluid unit so that the stator unit can operate the operating member of the fluid unit. A step of arranging at least a part of the connection unit between at least two of the drive units, the connection unit including connection leads. A step of electrically connecting the stator units in some of the drive units to the connection terminals by the connection leads.

[0007] According to another aspect, the present invention further provides a fluid control system, including the above fluid control device, a control system, and K harness structures. The fluid control device includes M connection terminals electrically connected to the stator units. The control system is electrically connected to the harness structure, and the harness structure is electrically connected to the connection terminals. The number of drive units is defined as N. K, M, and N are all positive integers, and K = M ≥ 1 and M < N.

Advantages of the Invention

[0008] According to the fluid control device of the present invention, it includes at least two fluid units and at least two drive units arranged at intervals. The operating member of the fluid unit can perform operations by the stator unit in the drive unit. Since the stator units in at least two drive units all need to be powered, compared with the form of individually electrically connecting a harness structure to each drive unit, the fluid control device of the present invention is provided with a connection unit. The connection terminals are electrically connected to the stator units in some of the drive units and are also electrically connected to the stator units in some other drive units by connection lead wires. Thereby, the wiring structure of the fluid control system is simplified, and furthermore, the fluid control system can be simplified.

[0009] According to the manufacturing method of the fluid control device of the present invention, at least a part of the connection unit is arranged between at least two drive units. The connection terminals are electrically connected to the stator units in some of the drive units and are also electrically connected to the stator units in some other drive units by connection lead wires. Thereby, the wiring structure of the fluid control system can be simplified.

[0010] According to the fluid control system of the present invention, at least a part of the connection unit is connected between at least two drive units. The connection terminals are electrically connected to the stator units in some of the drive units and are also electrically connected to the stator units in some other drive units by connection lead wires. Thereby, the number of connection terminals is less than the number of drive units, and furthermore, the wiring structure of the fluid control system can be simplified.

Brief Description of the Drawings

[0011]

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Embodiments for Carrying Out the Invention

[0012] Hereinafter, embodiments of the present invention will be described. In order to make the object, technical solution and advantages of the present invention clearer, hereinafter, the present invention will be further described in combination with the drawings and specific embodiments. In this specification, relational terms such as "first" and "second" are merely for distinguishing members having the same name, and do not require or imply that there is such an actual relationship or order between these members.

[0013] The fluid control device of the present invention is applicable to a fluid control system, for example, a fluid control system in a vehicle, and realizes the flow of fluid in the fluid control system by controlling a fluid control unit for the fluid.

[0014] As shown in FIGS. 1 to 6, the fluid control device 1000 according to the present invention includes an execution unit 300 and at least two drive units 100 arranged at intervals. The drive unit 100 and the execution unit 300 are connected in a sealed manner. The execution unit 300 includes at least two fluid units LK, and each drive unit 100 includes a stator unit 10. The stator unit 10 may be part of a motor, or when the stator unit 10 is energized, it generates a magnetic field that rotates a rotor unit in a pump unit. Each fluid unit LK includes an operating member LK1, and the stator unit 10 can operate the operating member LK1, realizing the control function of the fluid control device 1000 for the fluid. In this embodiment, the number of drive units 100 is two. The stator unit 10 in one drive unit 100 can drive the rotor unit in the pump unit to rotate, and the stator unit 10 in the other drive unit 100 forms part of a motor 12. The fluid unit LK includes a control valve unit 40 and a pump unit 50. The motor 12 can operate the operating member LK1 in the control valve unit 40 and generates a magnetic field that can operate the operating member in the pump unit 50 after the stator unit 10 is energized.

[0015] Furthermore, the fluid control device 1000 further includes a connection terminal 200, and this connection terminal 200 is connected to one drive unit 100. And this connection terminal 200 is electrically connected to the stator unit 10 in the drive unit 100 and is exposed outside the fluid control device 1000. When the fluid control device 1000 is applied to a fluid control system, in order to operate the fluid control device 1000, by electrically connecting a harness structure to the connection terminal 200, power is supplied to the stator unit 10 in the drive unit 100. When there are many drive units 100, if each drive unit 100 is individually connected to one harness structure, the wiring structure of the fluid control system becomes complicated and the cost is high.

[0016] To solve the above problems, further referring to FIGS. 1 to 9, the fluid control device 1000 of the present invention further includes a connection unit 20. And this connection unit 20 includes a connection housing 21 and a connection lead wire 22. At least a part of the connection housing 21 is connected between at least two drive units 100. The connection lead wire 22 is located in the connection housing 21. The connection terminal 200 is electrically connected to the stator unit 10 in some drive units 100 and is electrically connected to the stator unit 10 in some other drive units 100 by the connection lead wire 22. Thus, compared with the form of individually electrically connecting a harness structure to each drive unit 100, the fluid control device 1000 of the present invention is provided with the connection unit 20, which simplifies the wiring structure of the fluid control system and can further simplify the fluid control system. At least a part of the connection lead wire 22 extends along the arrangement direction of the drive units 100. For example, as shown in FIG. 6, the drive units 100 include a first drive unit 101 and a second drive unit 102 arranged along the height direction of the fluid control device. And at least a part of this connection lead wire 22 is arranged along the height direction of the fluid control device. In this specification, that two members are electrically connected means that an electrical signal can be transmitted between the two members. The two members may be directly in contact and electrically connected, or the electrical connection between the two members may be realized by other members.

[0017] In order to conveniently supply power to the stator unit 10 in the drive unit 100, the connection terminal 200 is electrically connected to a harness structure (not shown in the figure), and the fluid control device 1000 includes M connection terminals 200 that are electrically connected to the stator unit 10. The number of drive units 100 is defined as N, and both M and N are positive integers, where M ≥ 1 and M < N. With the above arrangement, the number of connection terminals 200 can be reduced. When the fluid control device 1000 is applied to the fluid control system, the number of harness structures can be reduced, and further, the fluid control system can be simplified and the cost can be reduced. As shown in FIGS. 1 to 6, the fluid control device 1000 according to the embodiment of the present invention includes one connection terminal 200 and two drive units 100. When the fluid control device 1000 is applied to the fluid control system, it is electrically connected to the connection terminal 200 by one harness structure, and further supplies power to the stator units 10 in the two drive units 100.

[0018] As shown in FIGS. 6 and 7, the drive unit 100 includes a circuit board 13. For the same drive unit 100, the stator unit 10 is electrically connected to the connection lead 22 by the circuit board 13. For example, as shown in FIG. 6, both the first drive unit 101 and the second drive unit 102 include a circuit board 13. The stator unit 10 in the second drive unit 102 forms a part of the motor 12, and the stator unit 10 in the motor 12 is electrically connected to the connection lead 22 at least by the circuit board 13. Alternatively, the other drive unit 100 includes an electrical connection line. The stator unit 10 is electrically connected to the connection lead 22 by the electrical connection line. In this case, the corresponding drive unit 100 may not be provided with a circuit board. This electrical connection line is embedded in the case of the drive unit as an insert, or provided in the case of the drive unit as a wire structure so as to be position-limited. The electrical connection line is welded or locked to the connection lead 22 to achieve electrical connection between the two. Alternatively, when the distance between the stator unit 10 and the connection lead wire 22 in the drive unit 100 is short, the electrical connection terminals of the stator unit 10 are brought into direct contact with the connection lead wire 22 for electrical connection, or the electrical connection terminals of the stator unit 10 are directly welded to the connection lead wire 22 for fixing, thereby realizing the electrical connection between the two. With the above arrangement, the stator unit 10 can be electrically connected to the connection lead wire 22.

[0019] Furthermore, as shown in FIGS. 7 to 9, the connection unit 20 is injection-molded and fixed to a part of the drive units 100. In this embodiment, the connection unit 20 and the first drive unit 101 are injection-molded and fixed as an integral structure, and the first drive unit 101 includes a first case 1011. Then, the connection housing 21 of the connection unit 20, the case of the connection terminal 200, and the first case 1011 are injection-molded and fixed as an integral structure. The first case 1011 includes a first bottom wall portion S1. The connection lead wire 22 has a rigid connecting pin structure. The connection lead wire 22 is injection-molded and fixed to the first bottom wall portion S1 as an insert. The connection housing 21 is injection-molded and fixed to the first bottom wall portion S1 and includes a chamber. A part of the connection lead wire 22 is located in this chamber, and the connection housing 21 protects the connection lead wire 22.

[0020] As shown in FIGS. 6 and 10 to 13, the fluid control device 1000 further includes a housing unit 30. This housing unit 30 includes a housing chamber 31. At least a part of the fluid unit LK is located in the housing chamber 31, and the drive units 100 are respectively provided on both sides in the height direction of the housing unit 30. As shown in Fig. 6, the first drive unit 101 and the second drive unit 102 are respectively provided on both sides in the height direction of the housing unit 30, and the connection unit 20 is located on the outer peripheral side of the housing unit 30. In this case, the connection unit 20 and the housing unit 30 are arranged separately, or a part of the housing unit 30 is further used as at least a part of the connection unit 20. That is, a part of the housing unit 30 is used as at least a part of the connection unit 20 for attaching the connection lead wire 22. In this case, a part of the connection lead wire 22 is located inside the housing unit 30. For example, a part of the outer peripheral wall of the housing unit 30 is arranged as a chamber, and the connection lead wire 22 is located in this chamber of the housing unit 30. The connection unit 20 in this embodiment is located on the outer peripheral side of the housing unit 30, and the connection housing 21 and the first case 1011 of the first drive unit 101 are injection-molded and fixed as an integral structure.

[0021] Furthermore, as shown in Figs. 10 to 13, the drive unit 100 includes a first drive unit 101 and a second drive unit 102. And this first drive unit 101 includes a first case 1011 and a stator unit 10. And this stator unit 10 includes a first stator unit 11 and a second stator unit. The stator unit 10 of the first drive unit 101 includes the first stator unit 11. The first stator unit 11 is connected so as to be position-limited in the first case 1011. For example, the first stator unit 11 is injection-molded into the first case 1011 as an insert, or the stator unit is mounted in the chamber of the first case 1011. Preferably, the first drive unit 101 includes three first stator units 11 that are all connected so as to be position-limited in the first case 1011. In the second drive unit 102, the stator unit 10 of the second drive unit 102 includes a second stator unit that forms a part of the motor 12. Preferably, the second drive unit 102 includes two motors 12.

[0022] Here, the first drive unit 101 further includes a motor 12, or the second drive unit 102 includes a first stator unit 11. The first stator unit 11 rotates a rotor unit in the pump unit, and the fluid unit LK includes a control valve unit 40 and a pump unit 50. And this control valve unit 40 includes a valve body 41 and a valve body shaft 42. By the valve body shaft 42, the valve body 41 is connected to be transmitted to the motor 12. The pump unit 50 includes a rotor unit 51, an impeller unit 52, a pump shaft 53, and an isolation sleeve 54. The rotor unit 51 is located within the magnetic field range of the first stator unit 11 and is connected to be transmitted to the impeller unit 52. The isolation sleeve 54 is located between the rotor unit 51 and the first stator unit 11, and the rotor unit 51 is fitted on the outer peripheral side of the pump shaft 53. And this pump shaft 53 is injection-molded and fixed to the isolation sleeve 54, or is provided to be mounted and position-limited. The accommodation chamber 31 of the housing unit 30 includes a valve chamber 311 and a pump chamber 312. At least a part of the valve body 41 is located in the valve chamber 311, and at least a part of the impeller unit 52 is located in the pump chamber 312. The housing unit 30 further includes a fluid passage 32 that communicates the pump chamber 312 with one valve chamber 311. With the above arrangement, the fluid can flow between the pump unit 50 and the control valve unit 40. The fluid control device integrates the pump unit 50 and the control valve unit 40, improving the integration degree of the fluid control device.

[0023] Referring further to FIGS. 1 to 9, both the first drive unit 101 and the second drive unit 102 include a circuit board 13. Specifically, the first drive unit 101 includes a first control board 131 located in the chamber of this first drive unit 101, and the second drive unit 102 includes a second control board 132 located in the chamber of this second drive unit 102 and electrically connected to the motor 12. The connection terminal 200 includes a first terminal 201 connected to the first drive unit 101. As shown in FIG. 3, the case of the first terminal 201 is injection-molded and fixed to the upper cover of the first drive unit 101, or welded and fixed. The first terminal 201 includes a first connection pin portion 2011. The first connection pin portion 2011 is electrically connected to the first control board 131 in the welding process and is electrically connected to the first stator unit 11 by the first control board 131. Further, the first connection pin portion 2011 is electrically connected to the motor 12 by the first control board 131, the connection lead wire 22, and the second control board 132. In a specific implementation, the first control board 131 is the main circuit board, and the second control board 132 is the auxiliary circuit board. The first control board 131 is provided with a control program and a control circuit for the first stator unit 11 and the motor 12. The second control board 132 is provided with a power supply circuit for the motor 12, etc. When the power supply unit 100 operates, the first control board 131 controls the operation parameters of the first stator unit 11 and the motor 12.

[0024] Alternatively, another first terminal 201 is connected to the second drive unit 102. The case of the first terminal 201 is injection-molded and fixed to the case of the second drive unit 102. Correspondingly, the first connection pin portion 2011 is electrically connected to the motor 12 by the second control board 132 and is electrically connected to the first stator unit 11 by the second control board 132, the connection lead wire 22, and the first control board 131. In this case, the second control board 132 is the main circuit board, and the first control board 131 is the auxiliary circuit board. The second control board 132 is provided with a control program and a control circuit for the first stator unit 11 and the motor 12. In a specific implementation, according to the user's needs, the position of the connection terminal 200 may be arranged.

[0025] Alternatively, in order to save costs, when the number of drive units 100 is at least two, some drive units 100 may not be provided with a circuit board. As shown in FIG. 10, the second drive unit 102 includes a third control board 133, a gear unit 15, and a potentiometer 1331. The gear unit 15 includes an output gear 151. The motor is connected by the output gear 151 to be transmitted to the valve body shaft 42. The potentiometer 1331 is located on the third control board 133 and is electrically connected to the third control board 133. The output gear 151 includes a shaft portion 1512 and a tooth profile portion 1511. And this shaft portion 1512 protrudes from the tooth profile portion 1511. At least a part of the shaft portion 1512 is fitted into the potentiometer 1331. When the motor drives the output gear 151 to rotate, the potentiometer 1331 detects the number of rotation steps of the output gear 151, and further obtains the number of rotations of the valve body 41. In this case, the connection terminal 200 includes a second terminal 202. The second terminal 202 is connected to the second drive unit 102. For example, the case of the second terminal 202 and the case of the second drive unit 102 are injection-molded and fixed as an integral structure. The second terminal 202 includes a second connection pin portion 2021. The second connection pin portion 2021 is electrically connected to the third control board 133 by a welding process. In this case, the second connection pin portion 2021 is electrically connected to the motor 12 by the third control board 133, and is also electrically connected to the first stator unit 11 by the third control board 133, the connection lead wire 22, and the electrical connection wire 14 in the first drive unit 101. FIG. 10 simply schematically shows the situation where the first stator unit 11 and the connection lead wire 22 are electrically connected by one electrical connection wire 14. In order to realize the rotation control for the first stator unit 11, the user may arrange the corresponding electrical connection wire 14 to electrically connect the first stator unit 11 and the connection lead wire 22. In this case, no circuit board is provided in the first drive unit 101, and a circuit board may be provided only in the second drive unit 102. This circuit board can control the first stator unit 11 and the motor 12.

[0026] Hereinafter, with reference to FIGS. 1 to 13, the structure of the execution unit 300 in the present invention will be further described. The control valve unit 40 includes a first valve unit, the accommodation chamber 31 includes a first valve chamber 3111, the first valve unit includes a first valve body 401, at least a part of the first valve body 401 is located in the first valve chamber 3111, the fluid passage 32 communicates the first valve chamber 3111 with the pump chamber 312, and the housing unit 30 includes a first side wall portion 33 and a pump lid portion 34. And this first side wall portion 33 forms at least a part of the wall portion of the first valve chamber 3111, the pump lid portion 34 forms at least a part of the wall portion of the first side wall portion 33, along the height direction of the fluid control device 1000, the first valve body 401 and the impeller unit 52 are provided at different heights respectively, and the orthographic projection of the first side wall portion 33 along the height direction of the fluid control device 1000 and the orthographic projection of the pump lid portion 34 along the height direction of the fluid control device 1000 overlap at least partially. With the above arrangement, the fluid control device 1000 becomes more compact. In this specification, the height direction of the fluid control device 1000 and the axial direction of the first valve body 401 are parallel or overlap.

[0027] When specifically implemented, the fluid control unit 1000 provided by the embodiment of the present invention includes three pump units 50. Along the height direction of the fluid control unit, the corresponding impeller units 521 of the three pump units 50 are all provided at different heights from the first valve body 401 respectively. The three impeller units 52 may be located at the same height or at different heights, and the present invention does not limit this.

[0028] As shown in FIGS. 1 to 13, in order to realize the driving function of the pump unit 50 for the fluid, the pump lid portion 34 further includes a first hole passage 341 and a second hole passage 342. Both the first hole passage 341 and the second hole passage 342 communicate with the corresponding pump chamber 312. At least a part of the first hole passage 341 corresponds to the impeller unit 52 and is coaxially arranged. In this case, the first hole passage 341 is the inlet of the corresponding pump unit 50, and the opening on one side of the second hole passage 342 is located at the outer peripheral edge of the impeller unit 52. In this case, the second passage 342 is the outlet of the corresponding pump unit 50, and due to the rotation of the impeller unit 52 in the pump chamber 312, the fluid flows between the first passage 341 and the second passage 342. The first side wall portion 33 is provided with a port 331 (see FIG. 14) communicating with the first valve chamber 3111, and one of the first passage 341 and the second passage 342 of the pump cover portion 34 communicates with the port 331 via the fluid passage 32. With the above arrangement, the fluid flow between the pump unit 50 and the first valve unit 21 can be realized.

[0029] As shown in FIGS. 10 to 13, the housing unit 30 further includes an upper wall portion 36 and a bottom wall portion 35. The upper wall portion 36 is hermetically connected to the first side wall portion 33 and forms a part of the wall of the first valve chamber 3111. In this embodiment, the upper wall portion 36 and the first side wall portion 33 are integrally injection-molded and fixed. The bottom wall portion 35 is hermetically connected to the first side wall portion 33. As shown in FIGS. 12 and 13, when the second passage 342 of the pump cover portion 34 communicates with the first valve chamber 3111 via the fluid passage 32, one opening of the second passage 342 is located at the outer peripheral edge of the impeller unit 52, and the other opening is located on the side of the upper wall portion 36 away from the first valve chamber 3111. The upper wall portion 36 forms a part of the wall of the fluid passage 32. With the above arrangement, the upper wall portion 36 is reasonably used to form a part of the wall of the fluid passage 32, making the structure of the fluid control unit compact.

[0030] The number of pump units 50 in this specification is three. Among the corresponding pump cover portions 34 of the three pump units 50, the second passage 342 of one pump cover portion 34 communicates with the first valve chamber 3111, and the first passages 341 of the other two pump cover portions 34 communicate with the first valve chamber 3111. The first valve body 401 is provided with four conduction passages, whereby the eight ports 331 opened in the first side wall portion 33 are communicated in pairs. The second valve body 402 is a three-way valve body, and the adjustment of the proportion of the ports corresponding to the three-way valve body can be realized. When specifically implemented, the number of pump units 50 and the number of control valve units 40 may be set according to the user's needs. For example, the fluid control device may include two control valve units 40 and two pump units 50, or may be in other forms.

[0031] As described above, the fluid control device 1000 of the present invention includes at least two fluid units LK and at least two drive units 100 arranged at intervals. And the operating member LK1 of the fluid unit LK can execute an operation by the stator unit 10 in this drive unit 100. Since the stator units 10 in at least two drive units 100 all need to be powered, compared with the form of individually electrically connecting a harness structure to each drive unit 100, the fluid control device 1000 of the embodiment of the present invention is provided with a connection unit 20. Furthermore, at least a part of this connection unit 20 is connected between at least two drive units 100, and the connection terminal 200 is electrically connected to the stator unit 10 in a part of the drive units 100 and is also electrically connected to the stator unit 10 in another part of the drive units 100 by the connection lead wire 22. Thereby, the wiring structure of the fluid control system is simplified, and furthermore, the fluid control system is simplified.

[0032] According to another aspect, the embodiment of the present invention further provides a method for manufacturing a fluid control device. As shown in FIGS. 1 to 14, the method for manufacturing a fluid control device includes the following steps: Step S110: Provide at least a part of at least two drive units 100, and each drive unit 100 includes a stator unit 10.

[0033] In some embodiments, at least a part of the two drive units 100 is provided, for example, at least a part of the first drive unit 101 and at least a part of the second drive unit 102. The first drive unit 101 includes a stator unit 10, which may be the first stator unit 11. The second drive unit 102 includes a stator unit 10, which may be the motor 12.

[0034] Step S120: Mount the drive unit 100 on the corresponding fluid unit LK so that the stator unit 10 can operate the operating member LK1 of the fluid unit LK.

[0035] Specifically, the fluid control device according to the embodiment of the present invention includes an execution unit 300, and the execution unit 300 includes a fluid unit LK and a housing unit 30. The number of the fluid units LK is at least two. The housing unit 30 is provided with an accommodation chamber 31. At least a part of the fluid unit LK is located in the accommodation chamber 31. The fluid unit LK includes a control valve unit 40 and a pump unit 50. The operating member LK1 of the control valve unit 40 includes a valve body 41 and a valve body shaft 42. The operating member of the pump unit 50 includes a rotor unit 51 and an impeller unit 52. After the pump unit 50, the control valve unit 40 and the housing unit 30 are mounted as the entire execution unit 300, they are mounted on the drive unit 100.

[0036] Based on this, step S120 of mounting the drive unit 100 on the corresponding fluid unit LK includes the step of mounting the drive unit 100 on the execution unit 300 so that the valve body 41 is connected to be transmitted to the motor 12. The rotor unit 51 is located within the magnetic field range of the first stator unit 11, whereby the stator unit 10 can operate the operating member LK1 of the fluid unit LK.

[0037] Step S130: Arrange at least a part of the connection unit 20 between at least two drive units 100. The connection unit 20 includes connection lead wires 22.

[0038] As shown in FIGS. 6 to 10, when the connection housing 21 of the connection unit 20 and the first case 1011 of the first drive unit 101 are integrally injection-molded and fixed, step S130 of arranging at least a part of the connection unit 20 between at least two drive units 100 may be performed simultaneously with step S120 of mounting the drive unit 100 on the corresponding fluid unit LK. Or, when the connection unit 20 and the drive unit 100 are arranged separately, after step S120, step S130 is performed to connect the connection housing 21 to the case of the drive unit 100.

[0039] Step S140: By electrically connecting the stator unit 10 in some of the drive units 100 to the connection lead wires 22, the connection terminal 200 is electrically connected to some of the stator units 10 by the connection lead wires 22.

[0040] As shown in FIG. 6, when the second drive unit 102 includes the second control board 132, the second control board 132 is electrically connected to the motor 12. In this case, in step S140, the connection lead wires 22 are electrically connected to the second control board 132 by a welding process. Further, the drive control signal of the motor 12 is connected to the first control board 131 of the first drive unit 101 by the connection unit 20. When electrically connected to one connection terminal 200 by one harness structure, signal control for the two drive units 100 can be realized.

[0041] To facilitate the connection between the connection unit 20 and at least two drive units 100, each drive unit 100 includes a case, and some of the stator units 10 are connected to be position-limited in the case. Specifically, the first drive unit 101 includes a first case 1011, the first stator unit 11 is injection-molded and fixed to the first case 1011 or mounted within the first case 1011, the second drive unit 102 includes a second case 1021, the motor 12 is provided so as to be positionally restricted in the second case 1021, the connection housing 21 is injection-molded and fixed to the case of one of the drive units 100, at least one other drive unit 100 includes a position restriction hole HOL, referring to FIGS. 6 to 15, the connection housing 21 is injection-molded and fixed to the first case 1011, the second case 1021 is provided with the position restriction hole HOL. In this case, step S120 of mounting the drive unit 100 to the corresponding fluid unit LK is a step of mounting at least two drive units 100 to the corresponding fluid unit LK, and a step of inserting the connection unit 20 into the other drive unit 100 from the position restriction hole HOL.

[0042] Specifically, the first drive unit 101 is mounted from one side in the height direction of the execution unit 300 to the pump unit 50, the rotor unit 51 is positioned within the magnetic field range of the first stator unit 11, the second drive unit is connected to the valve body shaft 42 of the control valve unit 40 so as to be transmitted from the other side in the height direction of the execution unit 300, after the connection unit is inserted into the chamber of the second drive unit 102 from the position restriction hole HOL, the connection lead wire 22 is electrically connected to the stator unit 10 in the second drive unit 102.

[0043] According to the manufacturing method of the fluid control device 1000 provided by the embodiment of the present invention, at least a part of the connection unit 20 is arranged between at least two drive units 100, the connection terminal 200 is electrically connected to the stator unit 10 in a part of the drive units 100 and is electrically connected to the stator unit 10 in another part of the drive units 100 by the connection lead wire 22, thereby simplifying the wiring structure of the fluid control system.

[0044] According to another aspect, an embodiment of the present invention further provides a fluid control system, including a control system, a harness structure, and the fluid control device 1000 of any of the above embodiments. And this fluid control device 1000 includes M connection terminals 200 electrically connected to the stator unit 10. The control system is electrically connected to the harness structure, and the harness structure is electrically connected to the connection terminals 200. Define the number of drive units 100 as N. K, M, and N are all positive integers, and K = M ≥ 1 and M < N. In this embodiment, K = 1, M = 1, and N = 2. Regarding the numbers of other K, M, and N, they may be set according to the user's needs. For example, K = 2, M = 1, and N = 3. With the above arrangement, the number of connection terminals is less than the number of drive units, and furthermore, the wiring structure of the fluid control system is simplified.

[0045] Here, the above embodiments do not limit the technical solutions described in the present invention. They are merely used to explain the present invention. For example, referring to the definitions of directions such as "front", "rear", "left", "right", "up", and "down", although this specification has already described and introduced the present invention with reference to the above embodiments, corrections, combinations, or equivalent replacements may be made to the present invention. All technical solutions and their improvements that do not deviate from the spirit and scope of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A fluid control device (1000), comprising: at least two fluid units (LK) and at least two drive units (100), each of said drive units (100) includes a stator unit (10), each of said fluid units (LK) includes an operating member (LK1), said stator unit (10) is capable of operating said operating member (LK1), said fluid control device (1000) further includes a connection unit (20) and connection terminals (200), said connection unit (20) includes connection lead wires (22), said connection terminals (200) are electrically connected to said stator unit (10) in some of said drive units (100), and are electrically connected to said stator unit (10) in some other of said drive units (100) by said connection lead wires (22), characterized in that it is a fluid control device (1000).

2. said drive unit (100) includes a circuit board (13), in the same drive unit (100), said stator unit (10) is electrically connected to said connection lead wire (22) by said circuit board (13), or said drive unit (100) includes an electrical connection wire (14), and said stator unit (10) is electrically connected to said connection lead wire (22) by said electrical connection wire (14), or said stator unit (10) in said drive unit (100) is in contact with and electrically connected to said connection lead wire (22), characterized in that it is the fluid control device (1000) according to Claim 1.

3. said fluid control device (1000) includes M of said connection terminals (200), and defines the number of said drive units (100) as N, where M and N are both positive integers, provided that M≥1 and M<N, characterized in that it is the fluid control device (1000) according to Claim 1 or Claim 2.

4. said fluid control device (1000) further includes a housing unit (30), said housing unit (30) includes a housing chamber (31), at least a part of said fluid units (LK) is located in said housing chamber (31), said drive units (100) are respectively provided on both sides in the height direction of said housing unit (30). The connection unit (20) is located on the outer peripheral side of the housing unit (30), or a part of the housing unit (30) is further used as at least a part of the connection unit (20). The fluid control device (1000) according to claim 3, characterized in that.

5. The drive unit (100) includes a first drive unit (101) and a second drive unit (102). The first drive unit (101) includes a first case (1011). The stator unit (10) of the first drive unit (101) includes a first stator unit (11). In the first drive unit (101), the first stator unit (11) is connected so as to be positionally restricted in the first case (1011). In the second drive unit (102), at least a part of the stator unit (10) of the second drive unit (102) forms a part of the motor (12). The fluid control device (1000) according to claim 4, characterized in that.

6. The fluid unit (LK) includes a control valve unit (40) and a pump unit (50). The operating member (LK1) of the control valve unit (40) includes a valve body (41) and a valve body shaft (42). The valve body (41) is connected by the valve body shaft (42) so as to be transmitted to the motor (12). The operating member (LK1) of the pump unit (50) includes a rotor unit (51) and an impeller unit (52). The rotor unit (51) is located in the magnetic field range of the first stator unit (11) and is connected so as to be transmitted to the impeller unit (52). The fluid control device (1000) according to claim 5, characterized in that.

7. The accommodation chamber (31) of the housing unit (30) includes a first valve chamber (311) and a pump chamber (312). At least a part of the valve body (41) is located in the first valve chamber (311). At least a part of the impeller unit (52) is located in the pump chamber (312). The housing unit (30) further includes a fluid passage (32) that communicates the pump chamber (312) and the first valve chamber (311). The fluid control device (1000) according to claim 6, characterized in that.

8. The first drive unit (101) includes a first control board (131) located in the chamber of the first drive unit (101). The second drive unit (102) includes a second control board (132) positioned in a chamber of the second drive unit (102). The connection terminal (200) includes a first terminal (201). The first terminal (201) includes a first connection pin portion (2011). The first connection pin portion (2011) is electrically connected to the first stator unit (11) by the first control board (131), and is electrically connected to the motor (12) by the first control board (131), the connection lead wire (22), and the second control board (132). Alternatively, the first connection pin portion (2011) is electrically connected to the motor (12) by the second control board (132), and is electrically connected to the first stator unit (11) by the second control board (132), the connection lead wire (22), and the first control board (131). The fluid control device (1000) according to claim 5 is characterized in that.

9. The second drive unit (102) includes a third control board (133), a gear unit (15), and a potentiometer (1331). The gear unit (15) includes an output gear (151). The motor (12) is connected by the output gear (151) to be transmitted to a valve body shaft (42) of the control valve unit (40). The potentiometer (1331) is positioned on the third control board (133) and is electrically connected to the third control board (133). The output gear (151) includes a shaft portion (1512) and a tooth profile portion (1511). The shaft portion (1512) protrudes from the tooth profile portion (1511). At least a part of the shaft portion (1512) is fitted into the potentiometer (1331). The fluid control device (1000) according to claim 5 is characterized in that.

10. The connection terminal (200) includes a second terminal (202) connected to the second drive unit (102). The second terminal (202) includes a second connection pin portion (2021). The second connecting pin portion (2021) is electrically connected to the motor (12) by the third control board (133), and is electrically connected to the first stator unit (11) by the third control board (133), the connection lead wire (22), and the electrical connection wire (14) in the first drive unit (101). The fluid control device (1000) according to claim 9, characterized in that.

11. The control valve unit (40) includes a first valve unit, The accommodation chamber (31) includes a first valve chamber (311) and a pump chamber (312), The first valve unit includes a first valve body (401), At least a part of the first valve body (401) is located in the first valve chamber (311), The fluid passage communicates the first valve chamber (311) and the pump chamber (312). The fluid control device (1000) according to any one of claims 7 to 10, characterized in that.

12. The fluid unit (LK) includes a pump unit (50), The operating member (LK1) of the pump unit (50) includes an impeller unit (52), The housing unit (30) includes a first side wall portion (33) and a pump lid portion (34), The first side wall portion (33) forms at least a part of the wall portion of the first valve chamber (311), The pump lid portion (34) forms at least a part of the wall portion of the first side wall portion (33), The first valve body (401) and the impeller unit (52) are provided at different heights along the height direction of the fluid control device (1000), The orthographic projection along the height direction of the fluid control device (1000) on the first side wall portion (33) and the orthographic projection along the height direction of the fluid control device (1000) on the pump lid portion (34) at least partially overlap. The fluid control device (1000) according to claim 11, characterized in that.

13. A method for manufacturing a fluid control device, Providing at least a part of at least two drive units (100), each of the drive units (100) including a step of including a stator unit (10), Mounting the drive unit (100) to a corresponding fluid unit (LK) so that the stator unit (10) can operate the operating member (LK1) of the fluid unit (LK). A step of arranging at least a part of the connection unit (20) between at least two of the drive units (100), wherein the connection unit (20) includes a connection lead wire (22). A step of electrically connecting the stator unit (10) in a part of the drive units (100) to the connection lead wire (22), so that the connection terminal (200) is electrically connected to a part of the stator units (10) by the connection lead wire (22). A method for manufacturing a fluid control device, characterized by including this step.

14. The connection unit further includes a connection housing (21). At least a part of the connection lead wire is located within the connection housing (21). Each drive unit (100) includes a case. The connection housing (21) is injection molded and fixed to the case of one of the drive units (100). At least one other drive unit (100) includes a position limiting hole (HOL). The step of mounting the drive unit (100) to the corresponding fluid unit (LK) is A step of mounting at least two of the drive units (100) to the corresponding fluid units (LK), A step of inserting the connection unit (20) into the other drive unit (100) from the position limiting hole (HOL). A method for manufacturing a fluid control device according to claim 13, characterized by including this step.

15. A fluid control system, Including the fluid control device (1000), a control system, and K harness structures according to any one of claims 1 to 12, The fluid control device (1000) includes M connection terminals (200). The connection terminals (200) are electrically connected to the stator unit (10). The control system is electrically connected to the harness structure. The harness structure is electrically connected to the connection terminals (200). Defining the number of drive units (100) as N, where K, M, and N are all positive integers, and K = M ≧ 1 and M < N. A fluid control system characterized by this.

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