Valve device

Abstract

The valve device comprises a shell and a stator assembly, the shell comprises a side wall part, the side wall part comprises a first protruding part and a first groove part, the first protruding part protrudes inwards from the inner side wall of the side wall part in the radial direction of the stator assembly, and the first groove part is sunken outwards from the inner side wall of the side wall part in the radial direction of the stator assembly; the first protruding part is located on the upper side of the first groove part, the stator assembly comprises a main body part, the main body part comprises a second protruding part, the second protruding part protrudes outwards from the first outer side wall of the main body part in the radial direction of the stator assembly, and at least part of the second protruding part is located in a groove of the first groove part; the top wall of the second protruding part can be matched with the bottom wall of the first protruding part and the top wall of the first groove part in a limiting mode, so that the first protruding part can prevent the second protruding part from being disengaged from a groove of the first groove part, the stator assembly can be prevented from being disengaged from the shell, and then the matching firmness of the valve device can be improved.

Description

Technical Field

[0001] The present application relates to the field of fluid control technology, and in particular to a valve device for a thermal management system. Background Art

[0002] The relevant valve device includes a housing and a stator assembly. The stator assembly is located in a concave cavity of the housing and is limitedly matched with the side wall of the housing. However, the structure of the limited match is not strong enough, so that the stator assembly can easily fall out of the housing. Utility Model Content

[0003] The purpose of this application is to provide a valve device that is conducive to improving the fitting firmness of the valve device.

[0004] To achieve the above objectives, this application provides a technical solution as follows:

[0005] A valve device includes a shell and a stator assembly, the shell includes a side wall portion, the side wall portion includes a first protrusion portion and a first groove portion, the first protrusion portion is arranged to protrude inwardly from the inner side wall of the side wall portion along the radial direction of the stator assembly, and the first groove portion is arranged to be recessed outwardly from the inner side wall of the side wall portion along the radial direction of the stator assembly, the first protrusion portion is located on the upper side of the first groove portion, the stator assembly includes a main body portion, the main body portion includes a second protrusion portion, the second protrusion portion is arranged to protrude outwardly from the outer side wall of the main body portion along the radial direction of the stator assembly, part of the second protrusion portion is located in the groove of the first groove portion, and the top wall of the second protrusion portion can be limitedly matched with the bottom wall of the first protrusion portion and the top wall of the first groove portion.

[0006] In a technical solution provided in the present application, part of the second protrusion is located in the groove of the first groove portion, and the top wall of the second protrusion can be limitedly cooperated with the bottom wall of the first protrusion and the top wall of the first groove portion, so that the first protrusion can limit the second protrusion from escaping from the groove of the first groove portion, which is beneficial to limiting the stator assembly from escaping from the housing, and further beneficial to improving the fitting firmness of the valve device. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic diagram of a three-dimensional structure of a valve device provided in an embodiment of the present application;

[0008] Figure 2 for Figure 1 A three-dimensional structural diagram of the control component;

[0009] Figure 3 for Figure 2 A schematic cross-sectional view of the control component;

[0010] Figure 4 for Figure 3 A schematic diagram of the partially enlarged structure at "A" in the middle;

[0011] Figure 5 for Figure 2 A schematic diagram of a cross-sectional structure of the middle shell;

[0012] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at "B" in the middle;

[0013] Figure 7 for Figure 2 A schematic diagram of the three-dimensional structure of the middle shell from one perspective;

[0014] Figure 8 for Figure 7 A schematic diagram of the partially enlarged structure at "C" in the middle;

[0015] Figure 9 for Figure 2 A schematic diagram of the three-dimensional structure of the middle shell from another perspective;

[0016] Figure 10 for Figure 2 An exploded structural diagram of the control component;

[0017] Figure 11 for Figure 10 A schematic diagram of the three-dimensional structure of the stator assembly from one perspective;

[0018] Figure 12 for Figure 10 A schematic diagram of the three-dimensional structure of the circuit board assembly from one perspective;

[0019] Figure 13 for Figure 12 A schematic diagram of the three-dimensional structure of the elastic member from one perspective;

[0020] Figure 14 for Figure 1 A schematic cross-sectional view of the middle valve device;

[0021] Figure 15 for Figure 14 A schematic diagram of the local enlarged structure at "D" in the middle;

[0022] In the figure: 10-valve device, 100-control component, 200-valve component, 110-housing, 120-stator assembly, 130-circuit board assembly, 140-elastic member, 111-side wall portion, 112-bottom wall portion, 113-accommodating chamber, 1111-first protrusion portion, 1111a-first bottom wall, 1111b-first smooth wall, 1111c-inclined top surface, 1111d-inner side surface, 1111e-second groove portion, 1111f-second groove, 1111g-first inner side wall, 1112-first groove portion, 1112a-first groove, 1112b-second top wall, 1113-fourth protrusion portion, 1121-third protrusion portion, 1122-third top wall, 1131- Accommodating groove, 121-main body, 122-elastic part, 123-winding, 124-claw pole plate, 125-pin, 131-main control board, 132-flexible board, 133-sub-control board, 141-static contact piece, 142-first spring piece, 143-moving contact piece, 144-second spring piece, 1211-second protrusion, 1211a-first top wall, 1211b-inclined bottom surface, 1211c-outer side surface, 1212-first outer side wall, 1213-second bottom wall, 1221-third groove portion, 1221a-third groove, 1222-third bottom wall, 1441-curling edge, 210-flow channel portion, 220-sleeve, 230-magnetic rotor assembly, 240-valve core assembly, 211-flow channel. DETAILED DESCRIPTION

[0023] The present application will be further described below with reference to the accompanying drawings and specific embodiments:

[0024] In the related art, the valve device includes a housing and a stator assembly. The stator assembly is located in a concave cavity of the housing and is limitedly matched with the side wall of the housing. However, the structure of the limited match is not strong enough, making the stator assembly easy to fall out of the housing.

[0025] Based on the above technical problems, an embodiment of the present utility model provides a valve device 10, including a housing 110 and a stator assembly 120, wherein the housing 110 includes a side wall portion 111, and the side wall portion 111 includes a first protrusion 1111 and a first groove portion 1112, wherein the first protrusion 1111 is provided from the inner side wall of the side wall portion 111 along the radial direction of the stator assembly 120 and is provided, and the first groove portion 1112 is provided from the inner side wall of the side wall portion 111 along the radial direction of the stator assembly 120 and is recessed outward. 11 is located on the upper side of the first groove portion 1112, the stator assembly 120 includes a main body portion 121, and the main body portion 121 includes a second protrusion portion 1211. The second protrusion portion 1211 is arranged to protrude radially outward from the first outer side wall 1212 of the main body portion 121 along the radial direction of the stator assembly 120, and at least part of the second protrusion portion 1211 is located in the groove of the first groove portion 1112, and the top wall of the second protrusion portion 1211 can abut against the bottom wall of the first protrusion portion 1111 and the top wall of the first groove portion 1112.

[0026] In the valve device, part of the second protrusion 1211 is located in the groove of the first groove portion 1112, and the top wall of the second protrusion 1211 can abut against the bottom wall of the first protrusion 1111 and the top wall of the first groove portion 1112, so that the first protrusion 1111 can limit the second protrusion 1211 from escaping from the groove of the first groove portion 1112, which is beneficial to limiting the stator assembly 120 from escaping from the housing 110, and further beneficial to improving the fitting firmness of the valve device.

[0027] In order to enable those skilled in the art to better understand the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In order to enable those skilled in the art to better understand the present application, the following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] The following combination Figures 1 to 15The valve device provided by the present invention is comprised of a control component 100 and a valve component 200, also known as a thermal management integrated module. This device can control the flow of multiple fluids, such as refrigerants, to achieve vehicle thermal management. The control component 100 includes a housing 110, a stator assembly 120, a circuit board assembly 130, and an elastic member 140. The valve component 200 includes a flow channel 210, a sleeve 220, a magnetic rotor assembly 230, and a valve core assembly 240.

[0029] In a possible implementation, the housing 110 and the stator assembly 120 are included. The housing 110 includes a side wall portion 111. The side wall portion 111 includes a first protrusion 1111 and a first groove portion 1112. The first protrusion 1111 is provided from the inner side wall of the side wall portion 111 along the radial direction of the stator assembly 120 and is provided. The first groove portion 1112 is provided from the inner side wall of the side wall portion 111 along the radial direction of the stator assembly 120 and is recessed outward. The first protrusion 1111 is provided at the first groove portion 1112. On the upper side of a groove portion 1112, the stator assembly 120 includes a main body portion 121, and the main body portion 121 includes a second protrusion portion 1211. At least part of the second protrusion portion 1211 is arranged to protrude outward from the outer side wall of the main body portion 121 along the radial direction of the stator assembly 120. At least part of the second protrusion portion 1211 is located in the groove of the first groove portion 1112, and the top wall of the second protrusion portion 1211 can abut against the bottom wall of the first protrusion portion 1111 and the top wall of the first groove portion 1112.

[0030] For ease of understanding, the definition is as follows Figure 3In the coordinate system shown, the Y-axis points to the upper side of the valve assembly, and the opposite direction of the Y-axis points to the lower side of the valve assembly. The inner sidewall of the sidewall portion 111 is defined as comprising a first inner sidewall 1111f. The first inner sidewall 1111f is a vertically disposed plane that may be parallel to the Y-axis. A first protrusion 1111 projects from the first inner sidewall 1111f toward the inner side of the housing 110. The protrusion direction of the first protrusion 1111 is substantially parallel to a radial direction of the stator assembly 120. A first groove portion 1112 is recessed from the first inner sidewall 1111f toward the outer side of the housing 110. The recess direction of the first groove portion 1112 is substantially parallel to a radial direction of the stator assembly 120. The outer wall of the main body portion 121 is defined as including a first outer wall 1212. The first outer wall 1212 is a vertically disposed plane and is substantially parallel to the first inner wall 1111f. A portion of the second protrusion 1211 protrudes from the first outer wall 1212 toward the outside of the stator assembly 120. The protrusion direction of the second protrusion 1211 is substantially parallel to a radial direction of the stator assembly 120. The groove of the first groove portion 1112 is defined as a first groove 1112a. A portion of the second protrusion 1211 is located in the first groove 1112a, and the remaining portion of the second protrusion 1211 is substantially located below the first protrusion 1111. The top wall of the second protrusion 1211 includes a first top wall 1211a, the bottom wall of the first protrusion 1111 includes a first bottom wall 1111a, and the top wall of the first groove 1112 includes a second top wall 1112b. The first top wall 1211a can abut against the first bottom wall 1111a and the second top wall 1112b. The provision of the second top wall 1112b increases the abutment area between the housing 110 and the stator assembly 120, thereby preventing the stator assembly 120 from being dislodged from the housing 110 and improving the fit of the valve device. Furthermore, the first protrusion 1111 can also prevent the second protrusion 1211 from being dislodged from the groove of the first groove 1112, thereby preventing the stator assembly 120 from being dislodged from the housing 110 and improving the fit of the valve device.

[0031] In addition, the second protrusion 1211 increases the thickness of a portion of the side wall portion 111. During the process of mating the shell 110 and the stator assembly 120, the second protrusion 1211 can pass through the first protrusion 1111 and then enter the first groove 1112a. Considering that the thickness of the side wall portion 111 where the second protrusion 1211 is located is increased, this is beneficial to reducing problems such as scratches and wear between the shell 110 and the stator assembly 120 during the mating process.

[0032] In addition, considering that the center of gravity of the stator assembly 120 is roughly located at or close to the axis of the stator assembly 120, the first protrusion 1111 is also arranged to protrude toward the axis of the stator assembly 120, and the first groove portion 1112 is arranged to be recessed away from the axis of the stator assembly 120. The first bottom wall 1111a is closer to the axis of the stator assembly 120, so that the abutment position between the stator assembly 120 and the housing 110 is closer to the center of gravity of the stator assembly 120, which is more conducive to improving the fitting firmness of the valve device.

[0033] In one possible implementation, the first protrusion 1111 includes a first smooth wall 1111b, which is located on the upper side of the bottom wall of the first protrusion 1111, and the first smooth wall 1111b smoothly transitions from the inner wall of the side wall portion 111 toward the bottom wall of the first protrusion 1111.

[0034] For ease of understanding, Figures 4 to 9 As shown, the first smooth wall 1111b is a smooth transition structure between the first inner wall 1111f and the first bottom wall 1111a. During the assembly of the stator assembly 120 and the housing 110, the first smooth wall 1111b of the smooth transition structure guides the assembly of the stator assembly 120 and the housing 110. Under the guidance of the first smooth wall 1111b, the second protrusion 1211 can smoothly pass through the first protrusion 1111 to facilitate the assembly of the stator assembly 120 and the housing 110.

[0035] In one possible implementation, the outer wall of part of the main body 121 is located on the lower side of the second protrusion 1211, and the smooth wall includes a sloping top surface 1111c and an inner side surface 1111d. The sloping top surface 1111c is located on the upper side of the inner side surface 1111d, and the sloping top surface 1111c smoothly transitions from the inner wall of the side wall portion 111 to the inner side surface 1111d. The inner side surface 1111d is arranged parallel to the outer wall of the main body 121.

[0036] For ease of understanding, Figures 4 to 9 As shown, the smooth wall is essentially composed of an inclined top surface 1111c and an inner side surface 1111d. The inclined top surface 1111c forms a smooth transition structure between the first inner side wall 1111f and the inner side surface 1111d. During the assembly of the stator assembly 120 and the housing 110, the inclined top surface 1111c of the smooth transition structure guides the assembly of the stator assembly 120 and the housing 110. Under the guidance of the inclined top surface 1111c, the first outer side wall 1212 can smoothly abut against the inner side surface 1111d. The first outer side wall 1212 is substantially parallel to the inner side surface 1111d, which helps to increase the contact area during assembly of the stator assembly 120 and the housing 110, thereby further facilitating assembly of the stator assembly 120 and the housing 110 and reducing problems such as scratches and wear between the stator assembly 120 and the housing 110.

[0037] In one possible implementation, the inner wall of part of the side wall portion 111 is located on the upper side of the first protrusion 1111, and the second protrusion 1211 includes a slanted bottom surface 1211b and an outer side surface 1211c. The slanted bottom surface 1211b is located on the lower side of the outer side surface 1211c, and the slanted bottom surface 1211b smoothly transitions from the outer wall of the main body portion 121 to the outer side surface 1211c. The outer side surface 1211c is arranged parallel to the inner wall of the side wall portion 111.

[0038] For ease of understanding, Figures 3 to 6 As shown, a portion of the first inner sidewall 1111f is located above the first raised portion 1111. The inclined bottom surface 1211b forms a smooth transition structure between the first outer sidewall 1212 and the outer side surface 1211c. The inclined bottom surface 1211b of the smooth transition structure guides the assembly of the stator assembly 120 and the housing 110. Guided by the inclined bottom surface 1211b, the outer side surface 1211c can smoothly abut against the first inner sidewall 1111f. The outer side surface 1211c is substantially parallel to the first inner sidewall 1111f, which helps to increase the contact area between the outer side surface 1211c and the first inner sidewall 1111f, thereby further facilitating the assembly of the stator assembly 120 and the housing 110 and reducing problems such as scratches and wear between the stator assembly 120 and the housing 110. Moreover, the outer side surface 1211c and the inner side surface 1111d can also abut against each other, which makes it easier to assemble the stator assembly 120 and the housing 110 and helps reduce problems such as scratches and wear between the stator assembly 120 and the housing 110.

[0039] In one possible implementation, the first protrusion 1111 includes a second groove portion 1111e, and the second groove 1111f is recessed inward from the sloping top surface 1111c. There are at least two sloping top surfaces 1111c, and the groove of the second groove portion 1111e separates at least two sloping top surfaces 1111c.

[0040] For ease of understanding, Figure 7 and Figure 8 As shown, the second groove portion 1111e is recessed from the inclined top surface 1111c toward the inner side of the first protrusion 1111, and the second groove portion 1111e has a second groove 1111f. There can be four inclined top surfaces 1111c, and second grooves 1111f are set between adjacent inclined top surfaces 1111c. The second grooves 1111f separate the adjacent inclined top surfaces 1111c. During the assembly process of the stator assembly 120 and the housing 110, the second grooves 1111f reduce the contact area between the inclined top surface 1111c and the main body 121, so that the assembly of the stator assembly 120 and the housing 110 is more convenient.

[0041] In one possible implementation, the main body 121 includes an elastic portion 122, which protrudes downward from the bottom wall of the main body 121. The shell 110 includes a bottom wall portion 112, and the elastic portion 122 abuts against the top wall of the bottom wall portion 112. The elastic portion 122 is in a compressed state.

[0042] For ease of understanding, Figure 3 and Figure 11 As shown, the bottom wall portion 112 is basically located on the lower side of the side wall portion 111, and the bottom wall of the main body portion 121 is defined to include a second bottom wall 1213, and the top wall of the bottom wall portion 112 includes a third top wall 1122. The elastic portion 122 is made of elastic material, and the elastic portion 122 can be formed on the main body portion 121 by a secondary overmolding process. The elastic portion 122 is arranged to protrude downward relative to the second bottom wall 1213, and the elastic portion 122 abuts against the third top wall 1122. The elastic portion 122 is in a compressed state. The compressed elastic portion 122 applies an elastic force along the axial direction of the stator assembly 120 to the stator assembly 120 and the housing 110. The axial elastic force can make the first top wall 1211a abut against the first bottom wall 1111a and the second top wall 1112b, thereby further improving the fitting firmness of the valve device.

[0043] In one possible implementation, the elastic portion 122 includes a third groove portion 1221, which is recessed upward from the bottom wall of the elastic portion 122 along the axial direction of the stator assembly 120. The bottom wall portion 112 includes a third protrusion portion 1121, which is protruded upward from the top wall of the bottom wall portion 112 along the axial direction of the stator assembly 120. At least part of the third protrusion portion 1121 is located in the groove of the third groove portion 1221.

[0044] For ease of understanding, Figure 9 and Figure 11 As shown, the bottom wall of the elastic portion 122 is defined to include a third bottom wall 1222, the third groove portion 1221 is recessed upward from the third bottom wall 1222, the third protrusion portion 1121 is protruded from the third top wall 1122, and the groove of the third groove portion 1221 is defined as a third groove 1221a. The third protrusion portion 1121 is basically located in the third groove 1221a, and the third protrusion portion 1121 plays a role of lateral limitation on the stator assembly 120, which is more conducive to improving the fitting firmness of the valve device.

[0045] In one possible implementation, the top wall of the second protrusion 1211 is a plane, the bottom wall of the first protrusion 1111 and the top wall of the first groove 1112 are located in the same plane, and the bottom wall of the second protrusion 1211 is parallel to the plane where the bottom wall of the first protrusion 1111 and the top wall of the first groove 1112 are located.

[0046] For ease of understanding, Figure 8 As shown, the first top wall 1211a is a plane, and the first bottom wall 1111a and the second top wall 1112b are coplanar. Ideally, the bottom wall of the second protrusion 1211 is basically parallel to the plane where the bottom wall of the first protrusion 1111 and the top wall of the first groove 1112 are located. The first top wall 1211a can be fitted with the plane where the first bottom wall 1111a and the second top wall 1112b are located. In this way, under the elastic force of the elastic part 122, it is more conducive to increasing the abutment area between the stator assembly 120 and the shell 110, and is more conducive to improving the fitting firmness of the valve device.

[0047] In one possible implementation, the sidewall portion 111 includes a fourth protrusion 1113 , which protrudes radially outward from the outer wall of the sidewall portion 111 along the stator assembly 120 , and at least part of the first groove portion 1112 is located on the inner side of the fourth protrusion 1113 .

[0048] For ease of understanding, Figure 2 As shown, the fourth protrusion 1113 is protruding from the outer wall of the side wall portion 111, and the first groove portion 1112 is basically located on the inner side of the fourth protrusion 1113, so that the wall thickness of the side wall portion 111 where the fourth protrusion 1113 is located is thicker, thereby improving the structural strength of the side wall portion 111, reducing the problem of deformation or even rupture of the side wall portion 111 caused by the stator assembly 120, and further reducing the problem of perforation of the side wall portion 111 where the first groove 1112a is located when the housing 110 is formed by injection molding. The first protrusion 1111 is also located on the inner side of the fourth protrusion 1113, which is also beneficial to improving the structural strength of the side wall portion 111. The outer wall of the fourth protrusion 1113 and the outer wall of the side wall portion 111 have a smooth transition, which is beneficial to the injection molding of the housing 110.

[0049] In one possible implementation, the wall thickness of the side wall portion 111 where the fourth protrusion 1113 is located is greater than the wall thickness of the side wall portion 111 of the remaining portion. The wall thickness of the side wall portion 111 of the remaining portion is thinner and is more prone to elastic deformation, thereby facilitating the assembly of the stator assembly 120 to the housing 110.

[0050] In one possible implementation, part of the second protrusion 1211 is arranged to protrude radially outward from the outer side wall of the main body 121 along the stator assembly 120, and the remaining part of the second protrusion 1211 is arranged to protrude axially upward from the top wall of the main body 121 along the stator assembly 120, and part of the first top wall 1211a is located on the upper side of the top wall of the main body 121. In this way, the structure of the stator assembly 120 is more compact, and the fit between the stator assembly 120 and the housing 110 is more compact, which is conducive to reducing the size of the valve device.

[0051] In a possible implementation, the circuit board assembly 130 includes a main control board 131 , the elastic member 140 abuts against and is electrically connected to the bottom wall of the main control board 131 , and the elastic member 140 abuts against and is electrically connected to the top wall of the sleeve 220 .

[0052] For ease of understanding, Figure 10 、 Figures 12 to 15 As shown, both the elastic member 140 and the sleeve 220 are made of a conductive metal, such as, but not limited to, aluminum alloy or copper. Furthermore, the elastic member 140 is highly elastic and can deform elastically when subjected to force. The elastic member 140 is electrically connected to the main control board 131 and the sleeve 220. The main control board 131 can be grounded via the elastic member 140 and the sleeve 220. The elastic member 140 shortens the grounding distance of the circuit board assembly 130, thereby improving the efficiency of the circuit board assembly 130 in discharging electronic noise, thereby improving the electromagnetic compatibility of the valve device. In particular, the main control board 131 can integrate numerous electronic components, requiring high currents to flow through it, and thus generating high levels of electronic noise. Using this grounding structure can efficiently dissipate a significant amount of electronic noise, significantly improving the electromagnetic compatibility of the valve device.

[0053] In addition, considering that there may be assembly deviation in the distance between the main control board 131 and the sleeve 220, the main control board 131, the elastic member 140 and the sleeve 220 are arranged in sequence from top to bottom, and the upper end of the elastic member 140 abuts against the bottom wall of the main control board 131 to achieve electrical connection, and the lower end of the elastic member 140 abuts against the top wall of the sleeve 220 to achieve electrical connection, which is conducive to improving the contact yield of the main control board 131, the elastic member 140 and the sleeve 220.

[0054] In one possible implementation, the elastic member 140 includes a static contact piece 141, a first elastic piece 142 and a dynamic contact piece 143, at least part of the static contact piece 141 is located on the upper side of the first elastic piece 142, and at least part of the dynamic contact piece 143 is located on the lower side of the first elastic piece 142, the static contact piece 141 is fixed and electrically connected to the main control board 131, and the dynamic contact piece 143 abuts against the top wall of the sleeve 220.

[0055] For ease of understanding, Figure 13As shown, the elastic member 140 is formed by bending a metal sheet. This allows the elastic member 140 to abut against the main control board 131 and the sleeve 220 over a larger area, which is more conducive to improving the contact yield of the electrical connection. The main control board 131 is a rigid circuit board. The bottom wall of the main control board 131 has a grounding layer (not shown in the figure). The grounding layer is printed on the bottom wall of the main control board 131 using copper foil. The grounding layer abuts against the static contact piece 141 to achieve electrical connection. The structure for fixing the main control board 131 and the static contact piece 141 can be, but is not limited to, a screw connection. The first elastic piece 142 can undergo elastic deformation. When the first elastic piece 142 undergoes elastic deformation, the dynamic contact piece 143 can move closer to or further away from the top wall of the static contact piece 141, which is more conducive to eliminating the influence of the distance deviation between the circuit board assembly 130 and the sleeve 220 on the electrical connection.

[0056] In a possible implementation, the elastic member 140 includes a second elastic piece 144 . The first elastic piece 142 and the second elastic piece 144 are respectively located at two ends of the movable contact piece 143 , and the first elastic piece 142 and the second elastic piece 144 are arranged in abutment with each other.

[0057] For ease of understanding, Figure 15 As shown, when the elastic member 140 is subjected to force, the first elastic piece 142 and the second elastic piece 144 undergo elastic deformation together, so that both sides of the movable contact piece 143 are affected by the elastic force, reducing the problem of the movable contact piece 143 being deflected relative to the sleeve 220, and further helping to improve the contact yield between the movable contact piece 143 and the sleeve 220.

[0058] In a possible implementation, the first spring piece 142 and the automatic contact piece 143 are tilted toward the second spring piece 144 , and the second spring piece 144 and the automatic contact piece 143 are tilted toward the first spring piece 142 , and the part where the second spring piece 144 and the first spring piece 142 abut against each other is located on one side of the dynamic contact piece 143 .

[0059] For ease of understanding, Figure 13 As shown, the cross-sections of the first elastic piece 142 , the second elastic piece 144 and the movable contact piece 143 are roughly isosceles triangles, so that the elastic force on both sides of the movable contact piece 143 is more uniform, which is more conducive to improving the contact yield between the movable contact piece 143 and the sleeve 220 .

[0060] In one possible implementation, the second spring piece 144 includes a curled edge 1441, which abuts against the first spring piece 142. When the first spring piece 142 and the second spring piece 144 undergo elastic deformation, the curled edge 1441 can slide on the first spring piece 142. The curled edge 1441 is a smooth transition structure. The curled edge 1441 abuts against the first spring piece 142 and can slide smoothly on the surface of the first spring piece 142, thereby reducing the wear of the elastic member 140 and thereby helping to improve the service life of the elastic member 140.

[0061] In one possible implementation, the circuit board assembly 130 includes a flexible board 132 and a sub-control board 133. There are at least two sub-control boards 133, and the at least two sub-control boards 133 are arranged in a one-to-one correspondence with the at least two stator assemblies 120. The flexible board 132 is electrically connected to the main control board 131, and the flexible board 132 is electrically connected to the at least two sub-control boards 133. The at least two sub-control boards 133 are electrically connected to the at least two stator assemblies 120.

[0062] For ease of understanding, Figure 3 、 Figure 10 and Figure 12 As shown, the flexible board 132 is a flexible circuit board, and the sub-control board 133 is a hard circuit board. The flexible board 132 has the characteristic of being easy to bend, so as to reduce the mutual influence between the assembly deviation of the main control board 131 and the shell 110 and the assembly deviation of the stator assembly 120 and the shell 110, which is beneficial for the main control board 131 and the five stator assemblies 120 to be assembled in the same shell 110. Moreover, it can also make the main control board 131 and the sub-control board 133 closer, which is beneficial to the miniaturization of the valve device.

[0063] In one possible implementation, the stator assembly 120 includes a winding 123, a claw pole plate 124 and a pin 125. The main body 121 is injection-molded with the winding 123, the claw pole plate 124 and the pin 125 as inserts. The winding 123 is wound around and electrically connected to the pin 125. The pin 125 is limitedly fitted with and electrically connected to the sub-control board 133. Part of the claw pole plate 124 is located in the hole of the main body 121, and the claw pole plate 124 is against the outer wall of the sleeve 220.

[0064] For ease of understanding, Figure 3 and Figure 15 As shown, the main body 121 is made of plastic. The main body 121 is injection-molded with the winding 123, the claw pole plate 124, and the pin 125 as inserts. A portion of the claw pole plate 124 is exposed in the hole of the main body 121. The claw pole plate 124 can abut against the outer wall of the sleeve 220. In this way, electronic noise on the claw pole plate 124 can be discharged through the sleeve 220, which is more conducive to improving the electromagnetic compatibility of the valve device.

[0065] In one possible implementation, at least part of the magnetic rotor assembly 230 is located in the inner cavity of the sleeve 220, part of the sleeve 220 is located in the hole of the main body 121, and part of the sleeve 220 is located in the hole of the bottom wall 112. The magnetic rotor assembly 230 and the stator assembly 120 constitute a motor.

[0066] In one possible implementation, the valve component 200 includes a flow channel portion 210 and a valve core assembly 240. The flow channel portion 210 is limitedly matched with the shell 110. The flow channel portion 210 is sealed and electrically connected to the sleeve 220. At least part of the valve core assembly 240 is located in the flow channel 211 of the flow channel portion 210. The valve core assembly 240 and the magnetic rotor assembly 230 are transmission-arranged.

[0067] For ease of understanding, Figure 14 and Figure 15 As shown, the flow channel portion 210 is also made of conductive metal, and the electronic noise on the claw pole plate 124 and the main control board 131 can be discharged to the outside through the flow channel portion 210, further improving the electromagnetic compatibility of the valve device.

[0068] In one possible implementation, the shell 110 has an accommodating cavity 113, the stator assembly 120 and the circuit board assembly 130 are located in the accommodating cavity 113, along the axial direction of the main body portion 121, the bottom wall portion 112 is located on the lower side of the side wall portion 111, the opening of the accommodating cavity 113 is located on the upper side of the side wall portion 111, and the fourth protrusion 1113 is located on the side of the side wall portion 111 close to the opening of the accommodating cavity 113.

[0069] In a possible implementation, the accommodating cavity 113 includes at least two accommodating slots 1131 , which are separated and arranged. There are at least two stator assemblies 120 , and the at least two stator assemblies 120 are arranged corresponding to the at least two accommodating cavities 113 .

[0070] For ease of understanding, Figure 14 As shown, there are five receiving slots 1131, which are separated and arranged along a radial direction of the stator assembly 120. There are also five stator assemblies 120, and the five receiving slots 1131 correspond one to one with the five stator assemblies 120. The stator assemblies 120 are arranged in corresponding receiving slots 1131. This ensures that the operation of the five stator assemblies 120 does not interfere with each other, which helps improve the reliability of the valve device. The circuit board assembly 130 electrically connects the five stator assemblies 120, achieving centralized control of the five stator assemblies 120. Considering the different tolerances in the fit between different stator assemblies 120 and the housing 110, the fitting structure of the five stator assemblies 120 and the housing 110 adopts the above-mentioned fitting structure. This facilitates stable fit between the five stator assemblies 120 and the housing 110 without interfering with each other, and helps reduce the dimensional accuracy requirements of the housing 110 and the stator assemblies 120, thereby reducing the manufacturing difficulty of the housing 110 and the stator assemblies 120.

[0071] Those skilled in the art should understand that the various technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above description of the disclosed embodiments is intended to enable those skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application.

Claims

1. A valve device comprising a housing (110) and a stator assembly (120), characterized in that: The housing (110) includes a side wall portion (111), and the side wall portion (111) includes a first protrusion portion (1111) and a first groove portion (1112), wherein the first protrusion portion (1111) is provided to protrude inwardly from the inner side wall of the side wall portion (111) along the radial direction of the stator assembly (120), and the first groove portion (1112) is provided to be recessed outwardly from the inner side wall of the side wall portion (111) along the radial direction of the stator assembly (120), and the first protrusion portion (1111) is located on the upper side of the first groove portion (1112). The stator assembly (120) includes a main body (121), and the main body (121) includes a second protrusion (1211). The second protrusion (1211) is arranged to protrude outward from the outer wall of the main body (121) along the radial direction of the stator assembly (120). Part of the second protrusion (1211) is located in the groove of the first groove portion (1112), and the top wall of the second protrusion (1211) can be limitedly matched with the bottom wall of the first protrusion (1111) and the top wall of the first groove portion (1112).

2. The valve device according to claim 1, characterized in that The first protrusion (1111) includes a first smooth wall (1111b), which is located on the upper side of the bottom wall of the first protrusion (1111), and the first smooth wall (1111b) smoothly transitions from the inner side wall of the side wall portion (111) toward the bottom wall of the first protrusion (1111).

3. The valve device according to claim 2, characterized in that Part of the outer wall of the main body (121) is located on the lower side of the second protruding portion (1211), the first smooth wall (1111b) includes an inclined top surface (1111c) and an inner side surface (1111d), the inner side surface (1111d) is arranged parallel to the outer wall of the main body (121), the inclined top surface (1111c) is located on the upper side of the inner side surface (1111d), and the inclined top surface (1111c) smoothly transitions from the inner side wall of the side wall portion (111) toward the inner side surface (1111d).

4. The valve device according to claim 3, characterized in that The first protrusion (1111) includes a second groove portion (1111e), which is recessed inward from the inclined top surface (1111c). There are at least two inclined top surfaces (1111c), and the groove of the second groove portion (1111e) separates at least two inclined top surfaces (1111c).

5. The valve device according to claim 3, characterized in that Part of the inner side wall of the side wall portion (111) is located on the upper side of the first protruding portion (1111), and the second protruding portion (1211) includes an inclined bottom surface (1211b) and an outer side surface (1211c), wherein the inclined bottom surface (1211b) is located on the lower side of the outer side surface (1211c), and the inclined bottom surface (1211b) smoothly transitions from the outer side wall of the main body portion (121) toward the outer side surface (1211c), and the outer side surface (1211c) is arranged parallel to the inner side wall of the side wall portion (111).

6. The valve device according to claim 4, characterized in that Part of the inner side wall of the side wall portion (111) is located on the upper side of the first protruding portion (1111), and the second protruding portion (1211) includes an inclined bottom surface (1211b) and an outer side surface (1211c), wherein the inclined bottom surface (1211b) is located on the lower side of the outer side surface (1211c), and the inclined bottom surface (1211b) smoothly transitions from the outer side wall of the main body portion (121) toward the outer side surface (1211c), and the outer side surface (1211c) is arranged parallel to the inner side wall of the side wall portion (111).

7. The valve device according to any one of claims 1 to 6, characterized in that The main body (121) includes an elastic portion (122), the elastic portion (122) is protruding downward from the bottom wall of the main body (121), the shell (110) includes a bottom wall portion (112), the elastic portion (122) abuts against the top wall of the bottom wall portion (112), and the elastic portion (122) is in a compressed state.

8. The valve device according to claim 7, characterized in that The elastic portion (122) includes a third groove portion (1221), and the third groove portion (1221) is recessed upward from the bottom wall of the elastic portion (122) along the axial direction of the stator assembly (120). The bottom wall portion (112) includes a third protrusion portion (1121), and the third protrusion portion (1121) is protruded upward from the top wall of the bottom wall portion (112) along the axial direction of the stator assembly (120). At least part of the third protrusion portion (1121) is located in the groove of the third groove portion (1221).

9. The valve device according to claim 8, characterized in that The bottom wall of the second protrusion (1211) is a plane, the bottom wall of the first protrusion (1111) and the top wall of the first groove (1112) are located in the same plane, and the bottom wall of the second protrusion (1211) is parallel to the plane where the bottom wall of the first protrusion (1111) and the top wall of the first groove (1112) are located.

10. The valve device according to claim 7, characterized in that The side wall portion (111) includes a fourth protrusion (1113), which is arranged to protrude outward from the outer wall of the side wall portion (111) along the radial direction of the stator assembly (120), and at least part of the first groove portion (1112) is located on the inner side of the fourth protrusion (1113).

11. The valve device according to any one of claims 1 to 6, 8 to 9, characterized in that: The side wall portion (111) includes a fourth protrusion (1113), which is arranged to protrude outward from the outer wall of the side wall portion (111) along the radial direction of the stator assembly (120), and at least part of the first groove portion (1112) is located on the inner side of the fourth protrusion (1113).

12. The valve device according to claim 7, characterized in that The valve device (10) comprises a circuit board assembly (130), a sleeve (220) and an elastic member (140), wherein the elastic member (140) abuts against and is electrically connected to the bottom wall of the circuit board assembly (130), and the elastic member (140) abuts against and is electrically connected to the top wall of the sleeve (220).

13. The valve device according to claim 11, characterized in that The valve device (10) comprises a circuit board assembly (130), a sleeve (220) and an elastic member (140), wherein the elastic member (140) abuts against and is electrically connected to the bottom wall of the circuit board assembly (130), and the elastic member (140) abuts against and is electrically connected to the top wall of the sleeve (220).

14. The valve device according to any one of claims 1 to 6 and 8 to 10, characterized in that The valve device (10) comprises a circuit board assembly (130), a sleeve (220) and an elastic member (140), wherein the elastic member (140) abuts against and is electrically connected to the bottom wall of the circuit board assembly (130), and the elastic member (140) abuts against and is electrically connected to the top wall of the sleeve (220).

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