Stator assembly and motorized valve

Abstract

The application relates to a stator assembly and an electric valve, which comprises a circuit board assembly, a coil assembly and an external plug pin, the external plug pin comprises a connecting section, an intermediate section and an external section, the circuit board assembly is electrically connected with the coil assembly and the connecting section, the second end is closer to the central axis of the coil assembly than the first end, and at least part of the second end is located on one side of the coil assembly in the axial direction, so that the external section can be closer to the central axis of the coil assembly, the structure of the external section and the stator assembly is more compact, and the transverse size of the stator assembly can be reduced.

Description

Technical Field

[0001] This application relates to a thermal management system, specifically to a stator assembly and an electric valve. Background Technology

[0002] The stator assembly is a crucial component of the electric valve, comprising a circuit board assembly, a coil assembly, and external pins. The circuit board assembly is electrically connected to the coil assembly and external pins. One end of the external pins extends outwards and can connect to the wiring harness of the thermal management system. However, the outward-extending portion of the external pins is loosely integrated with the stator assembly structure, resulting in a relatively large stator assembly size. Utility Model Content

[0003] The purpose of this application is to provide a stator assembly and an electric valve that facilitates a reduction in the lateral dimensions of the stator assembly and the electric valve.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A stator assembly includes a circuit board assembly, a coil assembly, and an external connector. The external connector includes a connecting section, a middle section, and an external connection section. The circuit board assembly is electrically connected to the coil assembly and the connecting section. The connecting section is located at a first end of the middle section, and the external connection section is located at a second end of the middle section. The second end is close to the central axis of the coil assembly relative to the first end, and at least a portion of the second end is located on one axial side of the coil assembly.

[0006] In a stator assembly provided in this application, the second end is closer to the central axis of the coil assembly than the first end, and at least part of the second end is located on one side of the axial direction of the coil assembly, so that the outer section and the central axis of the coil assembly can be closer, making the structure of the outer section and the stator assembly more compact, which is beneficial to reducing the lateral dimension of the stator assembly.

[0007] An electric valve includes a valve assembly and a stator assembly. The stator assembly includes a coil assembly, a circuit board assembly, and an external pin. The inner peripheral wall of the coil assembly surrounds the outer peripheral wall of the valve assembly. The external pin includes a connecting section, a middle section, and an external connection section. The circuit board assembly is electrically connected to the coil assembly and the connecting section. The connecting section is located at a first end of the middle section, and the external connection section is located at a second end of the middle section. The second end is close to the central axis of the coil assembly relative to the first end, and at least a portion of the second end is located on one axial side of the coil assembly.

[0008] In an electric valve provided in this application, the second end is closer to the central axis of the coil assembly than the first end, and at least part of the second end is located on one axial side of the coil assembly, so that the outer section and the central axis of the coil assembly can be closer, making the structure of the outer section and the stator assembly more compact, which is beneficial to reducing the lateral dimension of the electric valve. Attached Figure Description

[0009] Figure 1 A three-dimensional structural schematic diagram of the stator assembly provided in the embodiments of this application;

[0010] Figure 2 for Figure 1 A cross-sectional structural diagram of the middle stator assembly;

[0011] Figure 3 for Figure 2 A magnified view of a portion of the structure at point "A" in the diagram;

[0012] Figure 4 for Figure 1 Another cross-sectional view of the middle stator assembly;

[0013] Figure 5 for Figure 2 A schematic diagram of the structure of an external connector pin;

[0014] Figure 6 for Figure 2 A schematic diagram of the intermediate coil assembly;

[0015] Figure 7 For application Figure 1 A cross-sectional schematic diagram of the electric valve of the middle stator assembly;

[0016] Figure 8 For application Figure 7 A schematic diagram of the structure of a medium-sized electric valve from one perspective;

[0017] Figure 9 For application Figure 7 A structural principle block diagram of the thermal management system for electric valves;

[0018] In the diagram: 1-Thermal Management System, 10-Electric Valve, 20-Wire Harness, 30-Domain Controller, 100-Stator Assembly, 200-Valve Assembly, 300-Valve Body, 110-Coil Assembly, 120-Circuit Board Assembly, 130-External Pin, 140-Stator Encapsulation, 150-Pin Encapsulation, 160-Cover, 170-Control Receiving Part, 141-Stator Receiving Part, 142-Interface Receiving Part, 143-Cap, 144-Valve Chamber, 145-Rib, 146-Opening, 1411-Upper Wall, 1421-Interface Receiving Cavity, 142 2-Front sidewall, 1423-Rear sidewall, 111-Claw pole housing, 112-Wound pin, 113-Coil frame, 114-Winding, 1131-Terminal block, 121-Baseboard, 122-Components, 131-Connecting section, 132-External section, 133-Intermediate section, 1321-Second sub-segment, 1322-First sub-segment, 1331-First end, 1332-Second end, 171-Control receiving cavity, 210-Sleeve, 220-Magnetic rotor assembly, 230-Valve core assembly, 240-Valve port, 250-Throttle port, L-Central axis. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0020] The following is combined Figures 1 to 9 This application provides a detailed description of a stator assembly 100 and an electric valve 10 provided in its embodiments. Such a stator assembly 100 includes a coil assembly 110, a circuit board assembly 120, an external pin 130, a stator encapsulation portion 140, a pin encapsulation portion 150, and a cover 160.

[0021] In one possible implementation, the external connector 130 includes a connecting segment 131, an intermediate segment 133, and an external segment 132. The circuit board assembly 120 is electrically connected to the coil assembly 110 and the connecting segment 131. The connecting segment 131 is located at the first end 1331 of the intermediate segment 133, and the external segment 132 is located at the second end 1332 of the intermediate segment 133. The second end 1332 is close to the central axis L of the coil assembly 110 relative to the first end 1331, and at least part of the second end 1332 is located on one axial side of the coil assembly 110.

[0022] For ease of understanding, such as Figure 2 and Figure 7In the embodiment shown, the X-axis direction is aligned with a radial direction of the coil assembly 110, and can be considered as the transverse direction of the stator assembly 100. The Y-axis direction is aligned with the central axis L of the coil assembly 110, and can be considered as the longitudinal direction of the stator assembly 100. The projection of the second end 1332 along the axial direction of the coil assembly 110 overlaps with the upper end wall 1411 of the coil assembly 110. This arrangement allows the outer segment 132 located at the second end 1332 to be closer to the central axis L, thereby reducing the outward extension dimension of the interface receiving portion 142 along the transverse direction of the stator assembly 100. This facilitates a compact structure between the outer segment 132 and the stator assembly 100, and further reduces the transverse dimension of the stator assembly 100.

[0023] In one possible implementation, the axial direction of the coil assembly 110 is parallel to or coincides with the plane containing the lengths of the connecting segment 131, the intermediate segment 133, and the outer segment 132, and the length direction of the intermediate segment 133 is inclined relative to the axial direction of the coil assembly 110.

[0024] For ease of understanding, such as Figure 2 and Figure 5 In the embodiment shown, the lengths of the connecting segment 131, the intermediate segment 133, and the outer segment 132 are basically located in the same plane. The length direction of the central axis L is parallel to the plane containing the lengths of the connecting segment 131, the intermediate segment 133, and the outer segment 132. The length direction of the intermediate segment 133 is inclined relative to the axial direction of the coil assembly 110. This arrangement allows the intermediate segment 133 to form a smooth transition between the connecting segment 131 and the outer segment 132, which helps to reduce the assembly difficulty of the outer pin 130 and the coil assembly 110, thereby helping to reduce the product cost of the stator assembly 100.

[0025] In one possible implementation, the stator assembly 100 includes an interface receiving portion 142 and a cap portion 143. At least a portion of the external segment 132 is located in the interface receiving cavity 1421 of the interface receiving portion 142. The cap portion 143 protrudes upward from the upper end wall 1411 of the stator assembly 100. The cap portion 143 is coaxially arranged with the coil assembly 110. At least a portion of the interface receiving portion 142 is located on the radial side of the cap portion 143.

[0026] For ease of understanding, such as Figure 1 and Figure 2In the embodiment shown, the interface receiving portion 142 is located approximately on the radial side of the cap portion 143, and a portion of the outer segment 132 is located in the interface receiving cavity 1421. The cap portion 143 is coaxially arranged with the coil assembly 110. Therefore, the central axis L of the coil assembly 110 also passes through the center of the cap portion 143. The outer segment 132 and the central axis L are relatively close, which makes the cap portion 143 and the interface receiving portion 142 relatively close as well. This is more conducive to reducing the lateral dimension of the stator assembly 100.

[0027] In one possible implementation, the stator assembly 100 includes a rib 145 that extends from the outer peripheral wall of the cap 143 to the rear sidewall 1423 of the interface receiving portion 142, and the opening of the interface receiving cavity 1421 is located on the front sidewall 1422 of the interface receiving portion 142.

[0028] For ease of understanding, such as Figure 8 In the embodiment shown, the outer peripheral wall of the cap 143 and the rear side wall 1423 are spaced apart by a certain distance. The rib 145 extends from the outer peripheral wall of the cap 143 to the rear side wall 1423 of the interface receiving portion 142. This arrangement makes the overall strength of the cap 143, the rib 145, and the interface receiving portion 142 greater. The opening of the interface receiving cavity 1421 is located on the front side wall 1422 of the interface receiving portion 142. The front side wall 1422 and the rear side wall 1423 are located on opposite sides of the interface receiving portion 142. The wiring harness 20 of the thermal management system can be inserted into or pulled out of the interface receiving cavity 1421 through the opening of the interface receiving cavity 1421. The overall structure of the cap 143, the rib 145, and the interface receiving portion 142 can better withstand the force applied by the wiring harness 20 to the stator assembly 100.

[0029] like Figure 8 In the embodiment shown, the cap 143, the rib 145, and the interface receiving part 142 are integrally formed.

[0030] In one possible implementation, the outer segment 132 includes a first sub-segment 1322 and a second sub-segment 1321. The length direction of the first sub-segment 1322 is parallel to the length direction of the connecting segment 131. The second sub-segment 1321 is located between the first sub-segment 1322 and the intermediate segment 133. The length direction of the second sub-segment 1321 is perpendicular to the length direction of the first sub-segment 1322.

[0031] For ease of understanding, such as Figure 2 and Figure 5In the embodiment shown, the length direction of the first segment 1322 is perpendicular to the length direction of the central axis L. The first segment 1322 is approximately located in the interface receiving cavity 1421, making the interface receiving portion 142 laterally positioned, which helps to reduce the longitudinal dimension of the interface receiving portion 142. The length direction of the second segment 1321 is parallel to the length direction of the central axis L. The connecting segment 131 is located in the control receiving cavity 171 of the control receiving portion 170, so that the interface receiving portion 142 is spaced at a certain distance from the control receiving portion 170. This distance can reduce the impact of the interface receiving portion 142 on the assembly of the cover 160 of the circuit board assembly 120.

[0032] In one possible implementation, the stator assembly 100 includes a pin encapsulation portion 150 and a stator encapsulation portion 140. The pin encapsulation portion 150 is injection molded with an intermediate section 133 as an insert, and the stator encapsulation portion 140 is injection molded with the coil assembly 110 and the pin encapsulation portion 150 as inserts.

[0033] For ease of understanding, such as Figures 2 to 4 In the embodiment shown, the stator encapsulation portion 140 is fitted with the coil assembly 110 and the pin encapsulation portion 150, which helps to improve the bonding strength of the pin encapsulation portion 150, the stator encapsulation portion 140 and the coil assembly 110.

[0034] like Figure 2 In the embodiment shown, a portion of the pin encapsulation portion 150 is located on the radial side of the coil assembly 110, and another portion of the pin encapsulation portion 150 is located on the axial side of the coil assembly 110. A portion of the pin encapsulation portion 150 and the stator encapsulation portion 140 are located between the external pin 130 and the coil assembly 110. The pin encapsulation portion 150 spacees the grounding pin and the coil assembly 110 apart. When the stator encapsulation portion 140 is formed by injection molding, the pin encapsulation portion 150 can reduce the problem of contact between the external pin and the coil assembly 110.

[0035] like Figure 4 In the embodiment shown, there are at least two external pins 130. The pin encapsulation part 150 is injection molded with at least two external pins 130 as inserts, so that the pin encapsulation part 150 and the at least two external pins 130 become a whole. The stator encapsulation part 140 then uses the pin encapsulation part 150 and the coil assembly 110 as inserts for injection molding. This arrangement makes the positional accuracy of the at least two external pins 130 higher, which is beneficial to processing a stator assembly 100 with better product performance and also helps to reduce the processing difficulty of the stator assembly 100.

[0036] like Figure 1 and Figure 2In the embodiment shown, the stator assembly 100 includes a stator receiving portion 141, and the coil assembly 110 is generally located inside the stator receiving portion 141. The stator receiving portion 141 and the cap portion 143 are integrally formed. The stator receiving portion 141 is generally cylindrical in shape, and the cap portion 143 is generally round in shape. The outer diameter of the cap portion 143 is smaller than the outer diameter of the stator receiving portion 141, and the cap portion 143 protrudes upward from the upper end wall 1411 of the stator receiving portion 141.

[0037] In some embodiments, the pin encapsulation portion 150 is injection molded as an insert comprising a portion of the connecting segment 131 and a portion of the outer segment 132.

[0038] In one possible implementation, the stator assembly 100 includes a cover 160 that cooperates with the stator enclosure portion 140 to form a control receiving portion 170, a circuit board assembly 120 located in a control receiving cavity 171 of the control receiving portion 170, and at least a portion of the connecting segment 131 located in the control receiving cavity 171.

[0039] In this embodiment, the cover 160 and the stator encapsulation part 140 can be fitted together by laser welding. Laser welding can make the cover 160 and the stator encapsulation part 140 fit together more tightly, which is beneficial to improving the sealing of the control cavity 171.

[0040] For ease of understanding, such as Figure 2 and Figure 7 In the embodiment shown, the stator encapsulation part 140 includes an opening 172, the cover 160 is sealed to the opening 172, and the opening direction of the interface receiving cavity 1421 is parallel to the opening direction of the opening 172.

[0041] like Figure 1 and Figure 6 In the embodiment shown, the coil assembly 110 includes a claw pole housing 111 and a winding pin 112. At least a portion of the external pin 130 is located on the axial side of the claw pole housing 111, and at least a portion of the winding pin 112 is located in the control receiving cavity 171. The winding pin 112 is electrically connected to the circuit board assembly 120, and at least a portion of the winding pin 112 is located on the radial side of the claw pole housing 111 near the circuit board assembly 120.

[0042] like Figure 1 and Figure 6 In the embodiment shown, the coil assembly 110 includes a coil frame 113, which includes a terminal block 1131. The terminal block 1131 is engaged with the winding pin 112, or the terminal block 1131 is injection molded with the winding pin 112 as an insert. The outer peripheral wall of the claw electrode housing 111 has an opening, and the terminal block 1131 passes through the opening of the claw electrode housing 111.

[0043] like Figure 1 and Figure 6 In the embodiment shown, the coil assembly 110 further includes a winding 114, which is wound around the winding tube of the coil frame 113 and forms a helical segment. The helical segment of the winding 114 and the winding tube of the coil frame 113 are basically disposed inside the claw pole housing 111. The winding 114 is also wound around the winding pin 112 and welded to the winding pin 112.

[0044] like Figure 2 and Figure 4 In the embodiment shown, the circuit board assembly 120 includes a substrate 121 and components 122. The substrate 121 is soldered and fixed to external pins 130, winding pins 112, and components 122. Components 122 are located on the side of the substrate 121 near the claw electrode housing 111. External pins 130 and winding pins 112 are arranged around components 122. External pins 130 and coil assembly 110 surround components 122, so that components 122 can be closer to external pins 130 and coil assembly 110, which is beneficial to improving the structural compactness of components 122 and external pins 130 and coil assembly 110, and thus helps to reduce the size of stator assembly 100.

[0045] like Figure 1 In the embodiment shown, the stator encapsulation portion 140 includes a stator receiving portion 141, a cap portion 143, a rib portion 145, an interface receiving portion 142, and a portion of the control receiving portion 170. The stator receiving portion 141, the cap portion 143, the rib portion 145, the interface receiving portion 142, and a portion of the control receiving portion 170 are integrally formed.

[0046] like Figure 7 and Figure 8 As shown in the illustration, this application also provides an electric valve 10, including the stator assembly 100 described above, as well as a valve assembly 200 and a valve body 300. The valve assembly 200 includes a sleeve 210, a magnetic rotor assembly 220, and a valve core assembly 230. The magnetic rotor assembly 220 is drively connected to the valve core assembly 230, and the magnetic rotor assembly 220 and the valve core assembly 230 are substantially coaxially arranged.

[0047] like Figure 7 and Figure 8 In the embodiment shown, the inner peripheral wall of the coil assembly 110 surrounds the outer peripheral wall of the valve assembly 200.

[0048] like Figure 7 and Figure 8In the embodiment shown, the valve assembly 200 includes a valve core assembly 230, a valve port portion 240, a magnetic rotor assembly 220, and a sleeve 210. A throttling orifice 250 is formed between the valve core assembly 230 and the valve port portion 240. The magnetic rotor assembly 220 can drive the valve core assembly 230 to move, thereby adjusting the flow area of ​​the throttling orifice 250. At least a portion of the magnetic rotor assembly 220 is located inside the sleeve 210. At least a portion of the sleeve 210 is located in the valve cavity 144 of the stator assembly 100. The stator assembly 100 includes an interface receiving portion 142 and a cap portion 143. At least a portion of the external connecting section 132 is located in the interface receiving cavity 1421 of the interface receiving portion 142. The cap portion 143 is provided to protrude upward from the upper end wall 1411 of the stator assembly 100. A portion of the valve cavity 144 is located in the cap portion 143, and at least a portion of the interface receiving portion 142 is located on the radial side of the cap portion 143.

[0049] like Figure 9 As shown in the figure, the present application also provides a thermal management system 1, which includes the electric valve 10 mentioned above, as well as a wiring harness 20 and a domain controller 30. An external connector 130 is electrically connected to the wiring harness 20, and the wiring harness 20 is electrically connected to the domain controller 30. Using the electric valve 10 mentioned above helps to reduce the size of the thermal management system 1.

[0050] In summary, the stator assembly 100 described above makes the structure of the stator assembly 100 more compact, thereby achieving miniaturization of the stator assembly 100. For the electric valve 10 or thermal management system using the above stator assembly 100, the miniaturized stator assembly 100 is beneficial to achieving miniaturization of the electric valve 10 and the thermal management system.

[0051] The embodiments described above are merely examples of several implementations of this application, and while the descriptions are quite specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications without departing from the concept of this application, and these modifications all fall within the scope of protection of this application.

Claims

1. A stator assembly, characterized in that, The device includes a circuit board assembly (120), a coil assembly (110), and an external connector (130). The external connector (130) includes a connecting section (131), an intermediate section (133), and an external connector (132). The circuit board assembly (120) is electrically connected to the coil assembly (110) and the connecting section (131). The connecting section (131) is located at the first end (1331) of the intermediate section (133), and the external connector (132) is located at the second end (1332) of the intermediate section (133). The second end (1332) is close to the central axis (L) of the coil assembly (110) relative to the first end (1331), and at least a portion of the second end (1332) is located on one axial side of the coil assembly (110).

2. The stator assembly according to claim 1, characterized in that, The axial direction of the coil assembly (110) is parallel to or coincides with the plane containing the lengths of the connecting segment (131), the intermediate segment (133), and the outer segment (132), and the length direction of the intermediate segment (133) is inclined relative to the axial direction of the coil assembly (110).

3. The stator assembly according to claim 1 or 2, characterized in that, The stator assembly (100) includes an interface receiving portion (142) and a cap portion (143). At least a portion of the external segment (132) is located in the interface receiving cavity (1421) of the interface receiving portion (142). The cap portion (143) protrudes upward from the upper end wall (1411) of the stator assembly (100). The cap portion (143) is coaxially arranged with the coil assembly (110). At least a portion of the interface receiving portion (142) is located on the radial side of the cap portion (143).

4. The stator assembly according to claim 3, characterized in that, The stator assembly (100) includes a rib (145) extending from the outer peripheral wall of the cap (143) to the rear sidewall (1423) of the interface receiving portion (142), and the opening of the interface receiving cavity (1421) is located on the front sidewall (1422) of the interface receiving portion (142) away from the rear sidewall (1423).

5. The stator assembly according to any one of claims 1, 2, and 4, characterized in that, The outer segment (132) includes a first sub-segment (1322) and a second sub-segment (1321). The length direction of the first sub-segment (1322) is parallel to the length direction of the connecting segment (131). The second sub-segment (1321) is located between the first sub-segment (1322) and the intermediate segment (133). The length direction of the second sub-segment (1321) is perpendicular to the length direction of the first sub-segment (1322).

6. The stator assembly according to claim 3, characterized in that, The outer segment (132) includes a first sub-segment (1322) and a second sub-segment (1321). The length direction of the first sub-segment (1322) is parallel to the length direction of the connecting segment (131). The second sub-segment (1321) is located between the first sub-segment (1322) and the intermediate segment (133). The length direction of the second sub-segment (1321) is perpendicular to the length direction of the first sub-segment (1322).

7. The stator assembly according to any one of claims 1, 2, 4, and 6, characterized in that, The stator assembly (100) includes a pin encapsulation portion (150) and a stator encapsulation portion (140). The pin encapsulation portion (150) is injection molded with the intermediate section (133) as an insert, and the stator encapsulation portion (140) is injection molded with the coil assembly (110) and the pin encapsulation portion (150) as inserts.

8. The stator assembly according to claim 7, characterized in that, The stator assembly (100) includes a cover (160) that cooperates with the stator enclosure (140) to form a control receiving portion (170), the circuit board assembly (120) is located in the control receiving cavity (171) of the control receiving portion (170), and at least a portion of the connecting segment (131) is located in the control receiving cavity (171).

9. The stator assembly according to claim 3, characterized in that, The stator assembly (100) includes a pin encapsulation portion (150) and a stator encapsulation portion (140). The pin encapsulation portion (150) is injection molded with the intermediate section (133) as an insert, and the stator encapsulation portion (140) is injection molded with the coil assembly (110) and the pin encapsulation portion (150) as inserts.

10. The stator assembly according to claim 9, characterized in that, The stator assembly (100) includes a cover (160) that cooperates with the stator enclosure (140) to form a control receiving portion (170), the circuit board assembly (120) is located in the control receiving cavity (171) of the control receiving portion (170), and at least a portion of the connecting segment (131) is located in the control receiving cavity (171).

11. The stator assembly according to claim 5, characterized in that, The stator assembly (100) includes a pin encapsulation portion (150) and a stator encapsulation portion (140). The pin encapsulation portion (150) is injection molded with the intermediate section (133) as an insert, and the stator encapsulation portion (140) is injection molded with the coil assembly (110) and the pin encapsulation portion (150) as inserts.

12. The stator assembly according to claim 11, characterized in that, The stator assembly (100) includes a cover (160) that cooperates with the stator enclosure (140) to form a control receiving portion (170), the circuit board assembly (120) is located in the control receiving cavity (171) of the control receiving portion (170), and at least a portion of the connecting segment (131) is located in the control receiving cavity (171).

13. An electric valve, characterized in that, The device includes a valve assembly (200) and a stator assembly (100). The stator assembly (100) includes a coil assembly (110), a circuit board assembly (120), and an external connector (130). The inner peripheral wall of the coil assembly (110) surrounds the outer peripheral wall of the valve assembly (200). The external connector (130) includes a connecting section (131), an intermediate section (133), and an external connector (132). The circuit board assembly (120) is electrically connected to the coil assembly (110) and the connecting section (131). The connecting section (131) is located at the first end (1331) of the intermediate section (133), and the external connector (132) is located at the second end (1332) of the intermediate section (133). The second end (1332) is closer to the central axis (L) of the coil assembly (110) relative to the first end (1331), and at least a portion of the second end (1332) is located on one axial side of the coil assembly (110).

14. The electric valve according to claim 13, characterized in that, The valve assembly (200) includes a valve core assembly (230), a valve port (240), a magnetic rotor assembly (220), and a sleeve (210). A throttling orifice (250) is formed between the valve core assembly (230) and the valve port (240). The magnetic rotor assembly (220) can drive the valve core assembly (230) to operate, thereby adjusting the flow area of ​​the throttling orifice (250). At least a portion of the magnetic rotor assembly (220) is located within the sleeve (210), and at least a portion of the sleeve (210) is located within the stator. The valve chamber (144) of the component (100) includes an interface receiving portion (142) and a cap portion (143). At least a portion of the external segment (132) is located in the interface receiving cavity (1421) of the interface receiving portion (142). The cap portion (143) is provided to protrude upward from the upper end wall (1411) of the stator assembly (100). A portion of the valve chamber (144) is located in the cap portion (143), and at least a portion of the interface receiving portion (142) is located on the radial side of the cap portion (143).

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