A fluid control assembly

Abstract

The present application relates to the field of fluid control, particularly relates to a stable fluid control assembly, through a gas driving mechanism including a mechanism shell and a cantilever capable of being vibrated by power in the mechanism shell, the mechanism shell has an air inlet and an air outlet, so that the gas flows into the mechanism shell from the air inlet and flows out of the mechanism shell from the air outlet, the air outlet is connected with the space in the assembly shell and the space in the mechanism shell, the air inlet is connected with the space in the mechanism shell and the external space of the mechanism shell, that is, the gas passes through the gas driving mechanism from the external space of the mechanism shell, flows into the space in the assembly shell, generates gas flow in the space in the assembly shell, cools the electric control part in the assembly shell, and ensures the stability of the fluid control assembly.

Description

Technical Field

[0001] This invention relates to the field of fluid control, and in particular to a fluid control component. Background Technology

[0002] Fluid control components include valve components. In particular, when a fluid control component includes multiple valve components, the stator assemblies of the multiple valve components are housed in the same control box, and the number of electronic components controlling the motor operation on the circuit board increases. During the operation of the fluid control component, the temperature generated by the electronic components and the stator assembly rises, which affects the stability of the fluid control component's operation. Summary of the Invention

[0003] This invention provides a fluid control component that solves the above-mentioned operational stability problem:

[0004] A fluid control assembly includes: an electronic control unit, an assembly housing, and a gas drive mechanism. The electronic control unit includes a circuit board, a motor stator, and electronic components disposed on the circuit board. The gas drive mechanism and the assembly housing are limited or fixedly disposed. At least a portion of the circuit board and at least a portion of the motor stator are located within the space of the assembly housing. The gas drive mechanism includes a mechanism housing and a cantilever located within the mechanism housing and capable of being electrically energized and vibrating. The mechanism housing has an air inlet and an air outlet. The air outlet connects the space within the assembly housing and the space within the mechanism housing, and the air inlet connects the space within the mechanism housing and the external space of the mechanism housing.

[0005] Such a fluid control component includes a gas-driven mechanism comprising a housing and a cantilever located within the housing that is capable of energized vibration. The housing has an inlet and an outlet, allowing gas to flow into the housing from the inlet and out from the outlet. The outlet connects the space inside the housing with the space outside the housing, while the inlet connects the space inside the housing with the space outside the housing. In other words, gas flows from the outside space of the housing through the gas-driven mechanism into the space inside the housing, generating gas flow within the housing. This cools the electrical control unit inside the housing, ensuring the stability of the fluid control component's operation. Attached Figure Description

[0006] Figure 1 An exploded view of a fluid control assembly according to one embodiment;

[0007] Figure 2 for Figure 1 Top view of the assembly drawing;

[0008] Figure 3 for Figure 2 Cross-sectional view of BB in the middle;

[0009] Figure 4 for Figure 1Axonometric view of the middle shell cover;

[0010] Figure 5 An exploded view of the fluid control assembly in another embodiment;

[0011] Figure 6 for Figure 5 Top view of the assembly drawing;

[0012] Figure 7 for Figure 2 Cross-sectional view of DD in the middle;

[0013] Figure 8 for Figure 5 Axonometric view of the middle shell cover;

[0014] Figure 9 for Figure 3 and Figure 7 Enlarged view of regions A, B, C, D, E, and F.

[0015] Figure label:

[0016] Electrical control unit 1, circuit board 11, electronic components 12, motor stator 13, second hole 14, connecting plate 15

[0017] Component housing 2, housing cover 21, receiving area 211, housing cover main body 212, flow guiding sidewall 213, first part 2131, second part 2132, third part 2133, fourth part 2134, limiting peripheral wall 214, third hole 215, housing body 22, first hole 221

[0018] Gas-driven mechanism 3, mechanism housing 31, air inlet 311, air outlet 312, housing bottom wall 313, housing top wall 314, housing side wall 315, protrusion 316, cantilever 32, cantilever body 321, first cantilever part 322, second cantilever part 323, base 33, first cavity 34, second cavity 35

[0019] First gap 4, second gap 5, waterproof and breathable membrane 6 Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] The technical solution of the specific embodiments is described below with reference to the accompanying drawings:

[0022] In this invention, see Figures 1-9A fluid control component includes a component housing 2 and an electronic control unit 1. The electronic control unit 1 includes a circuit board 11, electronic components 12, and motor stators 13. The number of motor stators 13 is defined as N (N≥1), for example, the number of motor stators 13 is at least two. The arrangement direction of the at least two electronic stators is defined as a first direction. The length direction of the circuit board 11 is the first direction. Multiple motor stators 13 are respectively connected to the circuit board 11. The electronic control unit 1 also includes a connecting plate 15 with the same number of motor stators 13. The number of circuit boards 11 is 1. The connecting plate 15 connects the corresponding motor stators 13 to the circuit board 11 to realize the electrical connection between the circuit board 11 and the motor stators 13. In this embodiment, there are N groups of electronic components 12. The electronic components 12 in a unit group can be one or more. For example, the electronic components 12 in a unit group include multiple MOSFETs with high heating power, or multiple MOSFETs can be integrated into an integrated chip. For example, the electronic components 12 include at least two groups, each group of electronic components 12 controlling one motor stator 13. In the N groups of electronic components 12 controlling N motor stators 13, the arrangement direction of the electronic components 12 is consistent with the arrangement direction of the motor stators 13, that is, arranged along the first direction. As another embodiment, the electronic components 12 can be one group, and the number of motor stators 13 is at least two, that is, at least two motor stators 13 are controlled by one group of electronic components 12.

[0023] In this embodiment, the motor stator 13 includes a winding (not shown in the figure), which has a high heat output. In addition, the electronic component 12 has a high heat output. At least a portion of the circuit board 11 and at least a portion of the motor stator 13 are located within the space of the component housing 2. When the fluid control component is running, the temperature inside the component housing 2 rises, which affects the stability of the fluid control component's operation.

[0024] In one embodiment, see Figures 1-4 and Figure 9 The fluid control component includes a gas drive mechanism 3, which includes a structural housing and a cantilever 32 located within the housing 31 and capable of vibrating electrically. The housing 31 has an air inlet 311 and an air outlet 312. The air outlet 312 connects the space inside the component housing 2 and the space inside the housing 31, while the air inlet 311 connects the space inside the housing 31 and the space outside the housing 31.

[0025] Such a fluid control component, via a gas-driven mechanism 3, includes a housing 31 and a cantilever 32 located within the housing 31 and capable of vibrating under electrical current. The housing 31 has an inlet 311 and an outlet 312, allowing gas to flow into the housing 31 from the inlet and out from the outlet 312. The outlet 312 connects the space inside the component housing 2 with the space inside the housing 31, while the inlet 311 connects the space inside the housing 31 with the external space of the housing 31. In other words, gas flows from the external space of the housing 31 through the gas-driven mechanism 3 into the space inside the housing 2, generating gas flow within the housing 2 and cooling the electrical control unit 1 inside the housing 2, thus ensuring the stability of the fluid control component's operation.

[0026] Specifically, the gas detection mechanism is electrically connected to the circuit board 11. The circuit board 11 can supply power to the gas driving mechanism 3 and transmit signals through the circuit. The gas driving mechanism 3 includes a housing 31 and a base 33. At least a portion of the base 33 is located within the housing 31. The gas driving mechanism 3 includes a cantilever 32, which is located within the housing 31, and a portion of the cantilever 32 is connected to the base 33. At least a portion of the cantilever 32 is suspended from the base 33 within the housing 31. The cantilever 32 is electrically connected to the circuit board 11. Specifically, the cantilever 32 is electrically connected to the base 33, and the base 33 is electrically connected to the circuit board 11. The cantilever 32 includes a first cantilever portion 322 and a second cantilever. The first cantilever portion 322 and the second cantilever portion 323 are suspended from the base 33 in opposite directions. The first cantilever portion 322 and the second cantilever portion 323 can be an integral structure. The cantilever 32 extends in a first direction, that is, the first cantilever portion 322 and the second cantilever portion 323 extend in opposite directions in the first direction. The cantilever 32 is supported on the base 33. The base 33 may include a base 33 body (not shown in the figure) and a conductive layer (not shown in the figure) attached to the outer surface of the base 33 body. The conductive layer is used for electrical connection with the cantilever 32. More specifically, the base 33 and the circuit board 11 can be indirectly electrically connected through wires (not shown in the figure). Of course, the electrical connection method between the cantilever 32 and the circuit board 11 is not limited to this. For example, the base 33 may have a built-in wire harness to connect the cantilever 32 and the base 33, and so on.

[0027] Specifically, the housing 31 includes a bottom wall portion 313, a top wall portion 314, and a side wall portion 315. In the thickness direction of the cantilever 32, the bottom wall portion 313 and the top wall portion 314 are located on opposite sides of the cantilever 32, and the side wall portion 315 is located between the top wall portion 314 and the bottom wall portion 313. In the thickness direction of the circuit board 11, the bottom wall portion 313 is closer to the circuit board 11 than the top wall portion 314. A portion of the cavity inside the housing is located between the cantilever 32 and the top wall portion 314, forming a first cavity 34. A portion of the cavity inside the housing is located between the cantilever 32 and the bottom wall portion 313, forming a second cavity 35. The first cavity 34 and the second cavity 35 are connected.

[0028] In this embodiment, the housing 31 has an air inlet 311 and an air outlet 312. The air inlet 311 can be located on the top wall 314 of the housing, and the air outlet 312 can be located on the bottom wall of the housing 31. There are at least two air outlets 312. In the thickness direction of the cantilever 32, the projections of the corresponding walls of at least two air outlets 312 are respectively located in the projections of the first cantilever 322 and the second cantilever 323. The projection of the corresponding wall of the air inlet 311 is located within the projection of the base 33. Specifically, in this embodiment, there are two air outlets 312. In the thickness direction of the cantilever 32, the projection of the corresponding wall of one air outlet 312 is located within the projection of the first cantilever 322, and the projection of the corresponding wall of the other air outlet 312 is located within the projection of the second cantilever 323. There is one air inlet 311. More specifically, the air inlet 311 connects the first cavity 34 and the space outside the mechanism housing 31, and the air outlet 312 connects the second cavity 35 and the space inside the component housing 2.

[0029] In this embodiment, the first cantilever portion 322 and the second cantilever portion 323 of the gas-driven mechanism 3 can vibrate electrically, for example, driven by a piezoelectric element. The cantilever 32 may include a cantilever body 321 and a piezoelectric element (not shown in the figure) connected to the cantilever body 321. The cantilever body 321 may include stainless steel, nickel alloy, Hastelloy, Al (e.g., aluminum alloy), or Ti (e.g., titanium alloy of Ti6Al-4V). The piezoelectric element (e.g., a ceramic piezoelectric sheet) may also be other piezoelectric crystal structures. When the cantilever 32 of this structure is energized, the piezoelectric body will deform. When a changing electric field is applied, the piezoelectric body will continuously deform in different directions. The cantilever body 321 connected to the piezoelectric body will continuously move in different directions, thereby generating vibration. That is, the first cantilever part 322 and the second cantilever part 323 will vibrate. Specifically, the first cantilever part 322 and the second cantilever part 323 will vibrate in the thickness direction of the cantilever 32. The first cantilever part 322 can vibrate in phase or out of phase. That is, the pneumatic mechanism uses the reverse voltage effect to realize the vibration of the first cantilever part 322 and the second cantilever part 323.

[0030] Therefore, in this embodiment, the first cantilever portion 322 and the second cantilever portion 323 of the gas drive mechanism 3 can be electrically vibrated, thereby creating a pressure difference between the first cavity 34 and the second cavity 35 on both sides of the thickness direction of the cantilever 32, which in turn causes the fluid to enter from the air inlet 311 on one side of the gas drive mechanism 3 and flow out from the air outlet 312 on the other side, so as to generate a relatively high-speed fluid.

[0031] The component housing 2 includes a housing body 22 and a housing cover 21. Specifically, the housing body 22 and the housing cover 21 are separate structures, and the housing body 22 and the housing cover 21 cooperate to form the housing. The motor stator 13 is located inside the housing. The housing has a first hole 221, and the stator assembly has a second hole 14. The first hole 221 and the second hole 14 are opposite to each other. The fluid control component includes a valve assembly (not shown in the figure). In this embodiment, part of the valve assembly passes through the first hole 221, and part of the valve assembly is located in the second hole 14, so that the motor stator 13 and the motor rotor (not shown in the figure) of the valve assembly cooperate to realize the rotation of the motor rotor. Therefore, when the fluid control component is running, the heat in the component housing 2 will increase. In addition, the heat generated by the electronic components 12 on the circuit board 11, especially when the fluid control component has multiple motor stators 13, the heat in the component housing 2 will be even higher. Due to the excessive heat and the overheat protection of the electronic control unit 1, the stability of the operation of the fluid control component is affected, and it is necessary to reduce the heat in the component housing 2. The gas drive mechanism 3 enables airflow to occur inside the component housing 2, thereby reducing the temperature inside the component housing 2.

[0032] Specifically, the bottom wall 313 of the housing and the circuit board 11 are arranged opposite to each other, that is, the gas flowing out from the air outlet 312 flows to the circuit board 11, which can reduce the temperature of the circuit board 11. More specifically, the component housing 2 and the gas driving mechanism 3 are limited. In this embodiment, the component housing 2 includes a cover body 21, the gas driving mechanism 3 and the cover body 21 are limited. The housing component includes a receiving area 211, at least a portion of the gas driving mechanism 3 is located in the receiving area 211, and the gas driving mechanism 3 and the wall of the receiving area 211 are limited. Specifically, the cover body 21 has a cover body 212, which extends along a first direction, that is, the cover body 212 extends along the length direction of the circuit board 11, and the cover body 212 and the circuit board 11 are disposed opposite to each other. The cover body 21 has a limiting peripheral wall 214, which extends from the cover body 212 toward the circuit board 11. The inner side of the limiting peripheral wall 214 is located on the side of the housing side wall 315 of the gas drive mechanism 3 in the thickness direction of the limiting peripheral wall 214. The receiving area 211 is located inside the limiting peripheral wall 214, and part of the gas drive mechanism 3 is located in the receiving area 211. The housing side wall 315 of the gas drive mechanism 3 abuts against the limiting peripheral wall 214 to realize the limiting setting of the gas drive mechanism 3 and the component housing 2.

[0033] More specifically, the fluid control component includes a waterproof and breathable membrane 6, which is located in the receiving area 211. The waterproof and breathable membrane 6 is situated between the wall of the component housing 2 and the wall corresponding to the air inlet 311, thus limiting the position of the waterproof and breathable membrane. In this embodiment, the component housing 2 has a third hole 215 and a gas outlet (not shown in the figure). The third hole 215 is located in the main body 212 of the housing cover. Specifically, the third hole 215 connects the air inlet 311 and the external space of the component housing 2, while the gas outlet connects the internal and external spaces of the component housing 2. Gas enters the internal space of the housing through the third hole and the air inlet, then enters the internal space of the component housing through the air outlet 312, and finally flows out of the component housing through the gas outlet. This establishes an internal and external circulation within the component housing, accelerating the reduction of the internal temperature of the component housing. The third hole is located on the wall corresponding to the receiving area. Specifically, in the thickness direction of the circuit board 11, the projection of the wall corresponding to the third hole 215 is located inside the projection of the limiting peripheral wall 214. The waterproof and breathable membrane 6 is located between the wall corresponding to the third hole 215 and the top wall 314 of the housing. The third hole 215 connects the external space of the component housing 2 and the air inlet. That is, under the drive of the cantilever 32, the gas outside the component housing 2 enters the interior of the mechanism housing 31 through the third hole 215, the waterproof and breathable membrane 6, and the air inlet 311, and exits from the outlet. The gas flows out of the outlet 312 and into the internal space of the component housing 2. Specifically, the gas flowing out of the outlet 312 flows to the circuit board 11 to reduce the temperature of the circuit board 11. At the same time, the gas drive mechanism 3 is limited by the contact between the housing side wall 315 and the limiting peripheral wall 214. The housing top wall 314 and the housing cover main body 212 limit the waterproof and breathable membrane, filter impurities and water molecules in the air, and ensure the operational stability of the gas drive mechanism, while also ensuring the operational stability of the control component.

[0034] The housing 31 has a protrusion 316 located on the top wall portion 314 of the housing. The waterproof and breathable membrane 6 is located between the protrusion 316 and the main body portion 212 of the cover. Along the thickness direction of the top wall portion 314 of the housing, the protrusion 316 protrudes from the top wall portion 314 of the housing towards the waterproof and breathable membrane 6 and abuts against the waterproof and breathable membrane 6, thereby confining the waterproof and breathable membrane 6 between the top wall portion 314 of the housing and the main body portion 212 of the cover. Furthermore, by providing the protrusion 316, a distance is achieved between the waterproof and breathable membrane 6 and the top wall portion 314 of the housing. Compared to the waterproof and breathable membrane 6 being in close contact with the top wall portion 314 of the housing, this embodiment is more conducive to the waterproof and breathable membrane 6 filtering gas and allowing it to enter the interior of the housing 31 of the mechanism through the air inlet 311.

[0035] In this embodiment, the number of air outlets 312 is at least two, and the at least two air outlets 312 are arranged along the first direction, that is, the arrangement direction of the at least two air outlets 312 is consistent with the arrangement direction of the at least two motor stators 13, the extension direction of the circuit board 11, and the arrangement direction of the at least two electronic components 12, which facilitates the reduction of the temperature of the electronic components 12 and the area around the electronic components 12, and improves the stability of the fluid control assembly.

[0036] To reduce power consumption, in this embodiment, the fluid control component includes only one gas drive mechanism 3; at the same time, to improve the efficiency of the gas drive mechanism 3 in reducing temperature, in this embodiment, it is necessary to guide the gas flowing out of the outlet 312 to move in a certain direction. In this embodiment, the housing 21 includes a flow-guiding sidewall 213, which extends from the housing body 212 toward the circuit board 11. The flow-guiding sidewall 213 includes a first part 2131 and a second part 2132, which extend along a first direction. Along the thickness direction of the circuit board 11, the projection of the gas drive mechanism 3 is located between the projections of the first part 2131 and the second part 2132, and the projection of the electronic component 12 is located between the projections of the first part 2131 and the second part 2132. Thus, the first part 2131 and the second part 2132 can guide the gas flowing into the assembly housing 2 from the gas outlet 312 to flow along the first direction. The arrangement direction of at least two motor stators 13, the extension direction of the circuit board 11, and the arrangement direction of at least two electronic components 12 are the first direction, thereby improving the efficiency of reducing the temperature of the circuit board 11 and the electronic components 12.

[0037] More specifically, in the thickness direction of the circuit board 11, the projection of the flow guide sidewall 213 is a circumferentially closed annular shape, and the projection of the gas drive mechanism 3 is located inside the projection of the flow guide sidewall 213, that is, guiding the gas flowing into the component housing 2 through the air outlet 312 to flow inside the flow guide sidewall 213, thereby improving the efficiency of reducing the temperature of the circuit board 11 and electronic components. Specifically, the two sides of the thickness direction of the circuit board 11 are the upper and lower sides of the thickness direction of the circuit board 11, respectively. The main body of the cover 212 is located on the upper side of the circuit board 11, and the housing of the gas drive mechanism 3 is located on the upper side of the circuit board 11. The first part 2131 and the second part 2132 extend from the main body of the cover 212 in the direction toward the circuit board 11 and extend to the lower side of the circuit board 11. Compared with other embodiments, if the first part 2131 and the second part 2132 extend to the upper side of the circuit board 11, that is, a gap is formed between the circuit board 11 and the first part 2131, and / or the circuit board 11 and the second part 2132, and gas flows out from the gap, which reduces the efficiency of reducing the temperature of the circuit board 11 and the electronic component 12. In this embodiment, the first part 2131 and the second part 2132 extend from the main body of the cover 212 in the direction toward the circuit board 11 and extend to the lower side of the circuit board 11, which prevents the gas flowing to the circuit board 11 from escaping and improves the efficiency of reducing the temperature of the circuit board 11 and the electronic component 12. In this embodiment, the fluid control component includes a first notch 4 and a second notch 5. The first notch 4 is located between the flow guide sidewall 213 and the circuit board 11, and the second notch 5 is located between the flow guide sidewall 213 and the circuit board 11. The first notch 4 opens the space on both sides of the flow guide sidewall 213 in the thickness direction, and the second notch 5 opens the space on both sides of the flow guide sidewall 213 in the thickness direction, so that the gas inside the flow guide sidewall 213 passes through the first notch 4 and the second notch 5 to the outside of the flow guide sidewall 213. Specifically, the flow guide sidewall 213 includes a third part 2133 and a fourth part 2134, which are respectively the wall portions of the flow guide sidewall 213 at the ends along the first direction. Specifically, the third part 2133 connects the first part 2131 and the second part 2132, and the fourth sidewall connects the first part 2131 and the second part 2132. The third part 2133 and the fourth part 2134 extend from the main body of the cover 212 in the direction toward the circuit board 11, and the third part 2133 and the fourth part 2134 extend to the upper side of the circuit board 11. The first notch 4 is located between the third part 2133 and the circuit board 11, and the second notch 5 is located between the fourth part 2134 and the circuit board 11. This causes the gas entering the inner side of the guide wall 213 through the outlet 312 to tend to flow to the outer side of the guide wall 213, which facilitates the flow of gas on the inner side of the guide wall 213, carries away heat, and is more conducive to reducing the temperature of the circuit board 11 and electronic components 12.

[0038] In another embodiment, reference Figures 5-9 The difference from the above embodiments lies in that the fluid control assembly includes at least two gas-driven mechanisms 3, which significantly reduces the temperature of the circuit board 11 and electronic components 12. Specifically, at least two gas-driven mechanisms 3 are arranged along a first direction, that is, the arrangement direction of the gas-driven mechanisms 3 is consistent with the arrangement direction of the motor stator 13, and the arrangement direction of the gas-driven mechanisms 3 is consistent with the length direction of the circuit board 11, which is beneficial to reducing the temperature of the circuit board 11 and electronic components 12. More specifically, the number of waterproof and breathable membranes 6 and the number of receiving areas 211 are the same as the number of gas-driven mechanisms 3. Each unit number of gas-driven mechanisms 3 can reduce the temperature of each unit number of electronic components 12 corresponding to the motor stator 13, resulting in a more significant temperature reduction effect and ensuring the stability of the fluid control assembly operation. The cooperation relationship between the waterproof and breathable membrane 6, the gas-driven mechanisms 3, and the assembly housing 2 is the same as in the above embodiments, and will not be repeated here.

Claims

1. A fluid control component, characterized in that, include: The system comprises an electrical control unit (1), a component housing (2), and a gas drive mechanism (3). The electrical control unit (1) includes a circuit board (11), a motor stator (13), and electronic components (12) disposed on the circuit board (11). The gas drive mechanism (3) and the component housing (2) are positioned or fixedly disposed. At least a portion of the circuit board (11) and at least a portion of the motor stator (13) are located in the space within the component housing (2). The gas drive mechanism (3) includes a mechanism housing (31) and a cantilever (32) located within the mechanism housing (31) and capable of vibrating under electrical current. The mechanism housing (31) has an air inlet (311) and an air outlet (312). The air outlet (312) connects the space within the component housing (2) and the space within the mechanism housing (31). The air inlet (311) connects the space within the mechanism housing (31) and the external space of the mechanism housing (31).

2. The fluid control assembly according to claim 1, characterized in that, The cantilever (32) includes a cantilever body (321) and a piezoelectric element connected to the cantilever body (321). The piezoelectric element is electrically connected to the circuit board (11). The gas drive mechanism (3) includes a base (33). The base (33) is at least partially located in a cavity within the mechanism housing (31). The cantilever (32) is connected to a portion of the base (33) located within the mechanism housing (31). A portion of the cantilever (32) is suspended from the base (33) within the mechanism housing (31).

3. The fluid control assembly according to claim 1 or 2, characterized in that, At least a portion of the component housing (2) is disposed opposite to the circuit board (11). The component housing (2) has a third hole (215) and a gas outlet. The third hole (215) is connected to the air inlet (311). The gas outlet is connected to the space inside and outside the component housing (2).

4. The fluid control assembly according to claim 3, characterized in that, The component housing (2) includes a receiving area (211), at least a portion of the gas drive mechanism (3) is located in the receiving area (211), and the gas drive mechanism (3) and the wall of the receiving area (211) are limited, and the wall of the third hole (215) corresponds to the receiving area (211).

5. The fluid control assembly according to claim 3, characterized in that, The number of air outlets (312) is at least two, the at least two air outlets (312) are arranged along the extension direction of the cantilever (32), the number of motor stators (13) is at least two, and the arrangement direction of the at least two motor stators (13) is consistent with the extension direction of the cantilever (32), and the extension direction of the circuit board (11) is consistent with the arrangement direction of the at least two motor stators (13).

6. The fluid control assembly according to any one of claims 3 to 5, characterized in that, The housing (21) includes a housing body (212) and a flow guide sidewall (213). The housing body (212) and the circuit board (11) are disposed opposite to each other. Along the thickness direction of the circuit board (11), the flow guide sidewall (213) extends from the housing body (212) toward the circuit board (11). The length direction of the circuit board (11) is defined as a first direction. The number of motor stators (13) is at least two, and the at least two stators extend along the first direction. The flow sidewall (213) includes a first portion (2131) and a second portion (2132), the first portion (2131) and the second portion (2132) extending along the first direction and along the thickness direction of the circuit board (11), the projection of the gas drive mechanism (3) being located between the projections of the first portion (2131) and the second portion (2132), and the projection of the electronic component (12) being between the projections of the first portion (2131) and the second portion (2132).

7. The fluid control assembly according to claim 6, characterized in that, The fluid control component includes a first notch (4) and a second notch (5). The first notch (4) is located between the flow guide sidewall (213) and the circuit board (11), and the second notch (5) is located between the flow guide sidewall (213) and the circuit board (11). The first notch (4) connects the spaces on both sides of the flow guide sidewall (213), and the second notch (5) connects the spaces on both sides of the flow guide sidewall (213).

8. The fluid control assembly according to claim 7, characterized in that, The flow guide sidewall (213) includes a third part (2133) and a fourth part (2134), the third part (2133) and the fourth part (2134) being the wall portions of the flow guide sidewall (213) at the ends along the first direction, the first notch (4) being located between the third part (2133) and the circuit board (11), and the second notch (5) being located between the fourth part (2134) and the circuit board (11).

9. The fluid control assembly according to any one of claims 1 to 8, characterized in that, The number of gas drive mechanisms (3) is at least two, the number of motor stators (13) is at least two, and the arrangement direction of the at least two gas drive mechanisms (3) is consistent with the arrangement direction of the at least two motor stators (13).

10. The fluid control assembly according to claim 9, characterized in that, By definition, the electronic components (12) are in N groups, and the motor stators (13) are in N units. Each group of electronic components (12) controls one motor stator (13). Among the N groups of electronic components (12) controlling the N motor stators (13), the arrangement direction of the N groups of electronic components (12) is the same as the arrangement direction of the N motor stators (13).

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