Coil assembly, electric valve, air spring, vehicle suspension and vehicle

Abstract

The embodiment of the utility model provides a coil assembly, an electrically operated valve, an air spring, a vehicle suspension and a vehicle, the coil assembly comprises a coil, a terminal and a diode, the terminal is connected to the center position of the axial end of the coil, the terminal comprises a first contact pin and a second contact pin, the diode is connected between the first pin and the second pin. The diode is connected into the conduction path of the coil, so that the coil can be prevented from generating large induction current at the moment of power-on and power-off, and the accuracy and the stability of current control of the coil assembly are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve bodies, and specifically relates to a coil component, an electric valve, an air spring, a vehicle suspension and a vehicle. Background Art

[0002] Electric valves are basic automation components used to control fluids. They can be used in industrial control systems to adjust the direction, flow, speed and other parameters of fluid media. Because electric valves have the advantages of light weight, good smoothness and high stability, they are widely used in the fields of automobile production and modification.

[0003] The electric valve is generally equipped with a coil, a valve core and a core iron. The coil is energized to drive the valve core and the core iron to move, thereby adjusting the fluid. However, since the coil will generate a large induced current at the moment of power on and off, the induced current will affect the accuracy of the overall control of the electric valve and reduce the stability of the electric valve. Utility Model Content

[0004] An object of the utility model is to provide a new technical solution for a coil assembly, an electric valve, an air spring, a vehicle suspension and a vehicle.

[0005] According to a first aspect of the utility model, there is provided a coil assembly, comprising:

[0006] Coils, terminals and diodes,

[0007] The terminal is connected to the center position of the axial end of the coil, the terminal includes a first pin and a second pin, and the diode is connected between the first pin and the second pin.

[0008] Optionally, the first pin is provided with a first groove, the second pin is provided with a second groove, one end of the diode is connected to the first groove, and the other end of the diode is connected to the second groove.

[0009] Optionally, the first plug pin and the second plug pin are both L-shaped, the first plug pin is provided with the first groove at a bending position, and the second plug pin is provided with the second groove at a bending position.

[0010] Optionally, the first pin includes a first transverse section and a first vertical section that are fixedly connected, and the second pin includes a second transverse section and a second vertical section that are fixedly connected, the first vertical section and the second vertical section both extend along the axial direction of the coil, the first transverse section extends from the first vertical section in a direction away from the second vertical section, and the second transverse section extends from the second vertical section in a direction away from the first vertical section.

[0011] Optionally, a first protrusion is provided on the first transverse section, a second protrusion is provided on the first vertical section, the first groove is formed between the first protrusion and the second protrusion, a third protrusion is provided on the second transverse section, a fourth protrusion is provided on the second vertical section, and the second groove is formed between the third protrusion and the fourth protrusion.

[0012] Optionally, a fifth protrusion is provided on the first vertical segment, and the first groove is formed between the first transverse segment and the fifth protrusion; a sixth protrusion is provided on the second vertical segment, and the second groove is formed between the second transverse segment and the sixth protrusion.

[0013] Optionally, the first pin and the second pin are symmetrically arranged on both sides of the axis of the coil.

[0014] Optionally, the coil assembly further includes a magnetic conductive ring, and the magnetic conductive ring is arranged between the coil and the terminal.

[0015] Optionally, the coil further comprises a coil support, and the winding of the coil is wound around the outer circumference of the coil support;

[0016] The coil support is snap-fitted with the terminal.

[0017] Optionally, the coil is provided with a limiting protrusion facing the terminal;

[0018] A limiting groove is arranged on the peripheral side of the terminal, and the limiting protrusion is suitable for anti-rotation cooperation with the limiting groove.

[0019] Optionally, a stop wall is provided on the limiting protrusion, a stop area is formed between the stop wall and the limiting protrusion, and the winding of the coil is suitable for passing through the stop area.

[0020] Optionally, the coil further comprises a coil support, and the winding of the coil is wound around the outer circumference of the coil support; a convex ring is provided on the circumferential side of the coil support, and a guide groove is provided on the convex ring, and the winding of the coil is suitable for passing through the guide groove.

[0021] Optionally, the guide groove includes at least one first side surface, and the first side surface is not parallel to the central axis of the coil support.

[0022] According to a second aspect of the utility model, there is provided an electric valve, comprising a housing and the coil assembly according to the first aspect;

[0023] The coil assembly is disposed in the housing.

[0024] Optionally, a valve core assembly is further included, wherein an accommodating cavity is formed between the coil assembly and the shell, and the valve core assembly is disposed in the accommodating cavity.

[0025] According to a third aspect of the utility model, an air spring is provided, the air spring comprising a main air chamber, a secondary air chamber and the electric valve according to the second aspect;

[0026] The electric valve is disposed between the main air chamber and the auxiliary air chamber, and the electric valve is configured to control the on-off of the main air chamber and the auxiliary air chamber.

[0027] According to a fourth aspect of the utility model, a vehicle suspension is provided, wherein the vehicle suspension comprises the air spring described in the third aspect.

[0028] According to a fifth aspect of the utility model, a vehicle is provided, the vehicle comprising the vehicle suspension according to the fourth aspect.

[0029] A technical effect of the utility model is:

[0030] The embodiment of the present application provides a coil assembly, the coil assembly comprising a coil, a terminal and a diode, the terminal being connected to the center position of the axial end of the coil, the terminal comprising a first pin and a second pin, and the diode being connected between the first pin and the second pin. The diode is connected to the conduction path of the coil to ensure the accuracy and stability of the current control of the coil assembly.

[0031] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0033] Figure 1 A cross-sectional view of an electric valve provided in an embodiment of the utility model;

[0034] Figure 2 A schematic diagram of a coil assembly provided in an embodiment of the utility model Figure 1 ;

[0035] Figure 3 A schematic diagram of a coil assembly provided in an embodiment of the utility model Figure 2 ;

[0036] Figure 4 A cross-sectional view of a coil assembly provided by an embodiment of the utility model;

[0037] Figure 5 A three-dimensional diagram of a diode connection of a coil assembly provided by an embodiment of the utility model;

[0038] Figure 6 A front view of a diode connection of a coil assembly provided by an embodiment of the utility model;

[0039] Figure 7 A three-dimensional diagram of a coil support of a coil assembly provided in an embodiment of the utility model;

[0040] Figure 8 A front view of a coil support of a coil assembly provided in an embodiment of the utility model;

[0041] Fig. 9 A three-dimensional diagram of a terminal of a coil assembly provided in an embodiment of the utility model;

[0042] Fig.10 A front view of a terminal of a coil assembly provided by an embodiment of the utility model;

[0043] Fig.11 A three-dimensional diagram of a magnetic conductive ring of a coil assembly provided in an embodiment of the utility model.

[0044] Wherein: 1, housing; 2, coil assembly; 21, coil; 22, terminal; 221, diode; 222, first pin; 2221, first horizontal section; 2222, first vertical section; 2223, first protrusion; 2224, second protrusion; 223, second pin; 2231, second horizontal section; 2232, second vertical section; 2233, third protrusion; 2234, fourth protrusion; 224 , card table; 225, limit groove; 23, magnetic guide ring; 231, avoidance groove; 24, coil bracket; 241, hook; 242, limit protrusion; 243, retaining wall; 244, convex ring; 2441, guide groove; 3, valve core assembly; 31, valve seat; 32, valve body; 321, valve core; 322, valve stem; 323, spring; 324, core iron; 325, magnetic isolation tube; 4, base; 5, sealing seat. DETAILED DESCRIPTION

[0045] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0046] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0047] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0048] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0051] Reference Figures 1 to 6 , an embodiment of the present application provides a coil assembly, the coil assembly comprising:

[0052] Coil 21, terminal 22 and diode 221,

[0053] The terminal 22 is connected to the center position of the axial end of the coil 21;

[0054] The terminal 22 includes a first pin 222 and a second pin 223 , and the diode 221 is connected between the first pin 222 and the second pin 223 .

[0055] In this embodiment, the axial direction of the coil 21 can be Figure 1In the vertical direction, the terminal 22 is connected to the center position of the axial end of the coil 21. The terminal 22 can be set at the center position of the upper end of the coil 21, or the terminal 22 is set at the center position of the lower end of the coil 21. The diode 221 can be kept relative to the center of the coil 21, thereby improving the structural compactness of the coil assembly and ensuring the convenience of connecting the diode 221 to the coil 21.

[0056] At the moment when current is passed through the coil 21 or when current is disconnected, a large induced current is easily generated, which affects the accuracy of the operation of the coil component. The coil component provided in the embodiment of the present application is provided with a diode 221 in the terminal 22, and the coil 21 is electrically connected to the diode 221, that is, the diode 221 is connected to the conduction path of the coil 21, which can avoid the coil 21 from generating a large induced current at the moment of power failure, thereby ensuring the accuracy and stability of the current control of the coil component.

[0057] Furthermore, since the diode 221 is placed inside the terminal 22, the versatility of the coil assembly is improved. At the same time, the arrangement of the diode 221 can also avoid instantaneous high currents caused by misoperation or line connection problems, eliminating the risk of line fire caused by high currents.

[0058] In one embodiment, see Figure 5 and Figure 6 The two ends of the coil 21 are connected to the first pin 222 and the second pin 223 respectively.

[0059] Specifically, the first pin 222 has a first connection end and a first plug-in end, the second pin 223 has a second connection end and a second plug-in end, the first connection end and the second connection end extend from the terminal 22; one end of the coil 21 is connected to the first connection end, and the other end of the coil 21 is connected to the second connection end, and the first plug-in end and the second plug-in end are arranged side by side to facilitate electrical connection with the control board to ensure the control stability of the current in the coil assembly.

[0060] The coil assembly provided in the embodiment of the present application includes a coil 21, a terminal 22 and a diode 221, wherein the terminal 22 is connected to the center position of the axial end of the coil 21; the terminal 22 includes a first pin 222 and a second pin 223, and the diode 221 is connected between the first pin 222 and the second pin 223. Connecting the diode 221 to the conduction path of the coil 21 can prevent the coil 21 from generating a large induced current at the moment of power-on and power-off, thereby ensuring the accuracy and stability of the current control of the coil assembly.

[0061] Optionally, the first pin 222 is provided with a first groove, the second pin 223 is provided with a second groove, one end of the diode 221 is connected to the first groove, and the other end of the diode 221 is connected to the second groove, so as to provide a connection position on the first pin 222 and the second pin 223 through the first groove and the second groove, thereby facilitating the connection between the diode 221 and the first pin 222 and the second pin 223.

[0062] Alternatively, see Figure 5 and Figure 6 The first pin 222 and the second pin 223 are both L-shaped, a first groove is provided at the bending position of the first pin 222, and a second groove is provided at the bending position of the second pin 223. One end of the diode 221 is connected to the first groove, and the other end of the diode 221 is connected to the second groove to ensure the stability of the connection of the diode 221 to the first pin 222 and the second pin 223.

[0063] In one embodiment, the first groove forms a first card slot, the second groove forms a second card slot, one end of the diode 221 forms a first U-shaped buckle, and the other end of the diode 221 forms a second U-shaped buckle. The first U-shaped buckle is buckled on the first card slot, and the second U-shaped buckle is buckled on the second card slot to detachably connect the diode 221 to the first pin 222 and the second pin 223.

[0064] In one embodiment, see Figure 5 and Figure 6 The first pin 222 includes a first transverse section 2221 and a first vertical section 2222 fixedly connected, the second pin 223 includes a second transverse section 2231 and a second vertical section 2232 fixedly connected, the first vertical section and the second vertical section both extend along the axial direction of the coil 21, the first transverse section extends from the first vertical section in a direction away from the second vertical section, and the second transverse section extends from the second vertical section in a direction away from the first vertical section, that is, the first transverse section and the second transverse section are arranged back to back, and the first vertical section and the second vertical section are arranged in parallel.

[0065] In one embodiment, a first protrusion 2223 is provided on the first transverse section 2221, a second protrusion 2224 is provided on the first vertical section 2222, a first groove is formed between the first protrusion and the second protrusion, a third protrusion 2233 is provided on the second transverse section 2231, a fourth protrusion 2234 is provided on the second vertical section 2232, a second groove is formed between the third protrusion and the fourth protrusion, thereby fixing the diode 221 more firmly.

[0066] In this embodiment, the first transverse segment is connected to a side of the first vertical segment away from the second transverse segment to form a first bending position of 90° between the first transverse segment and the first vertical segment; the second transverse segment is connected to a side of the second vertical segment away from the first transverse segment to form a second bending position of 90° between the second transverse segment and the second vertical segment.

[0067] A first groove is formed between the first protrusion and the second protrusion at the first bending position, and a second groove is formed between the third protrusion and the fourth protrusion at the second bending position, and the opening of the first groove and the opening of the second groove are opposite to each other, so that the two ends of the diode 221 are connected to the first pin 222 and the second pin 223 through the opening of the first groove and the opening of the second groove.

[0068] In another embodiment, a fifth protrusion is provided on the first vertical segment, a first groove is formed between the first transverse segment and the fifth protrusion, a sixth protrusion is provided on the second vertical segment, and a second groove is formed between the second transverse segment and the sixth protrusion.

[0069] In this embodiment, a first groove is formed between the first transverse segment and the fifth protrusion, and a second groove is formed between the second transverse segment and the sixth protrusion, so that the first transverse segment and the second transverse segment are used to connect the coil 21, and the first and second grooves are formed with the help of the first transverse segment and the second transverse segment, and the stability of the diode 221 connected to the first pin 222 and the second pin 223 is guaranteed on the basis of simplifying the structure of the first pin 222 and the second pin 223.

[0070] Alternatively, see Figures 4 to 6 The first pin 222 and the second pin 223 are symmetrically arranged on both sides of the axis of the coil 21.

[0071] Specifically, when the coil assembly is arranged vertically, the first pin 222 and the second pin 223 can be symmetrically arranged in the terminal 22 on both sides of the axis of the coil 21, and the diode 221 is connected between the first pin 222 and the second pin 223, so that the diode 221 is located at the center of the coil assembly, thereby improving the structural compactness of the coil assembly and ensuring the convenience of connecting the diode 221 to the coil 21.

[0072] Alternatively, see Figures 1 to 4 The coil assembly 2 further includes a magnetic conductive ring 23 , and the magnetic conductive ring 23 is disposed between the coil 21 and the terminal 22 .

[0073] Specifically, after the magnetic ring 23 is combined with the coil 21 and the terminal 22 , a receiving groove for accommodating the valve core assembly 3 can be formed inside the magnetic ring 23 , the coil 21 and the terminal 22 , which facilitates the assembly of the valve core assembly 3 and the coil assembly 2 .

[0074] Alternatively, see Figures 7 to 10 , the coil 21 further comprises a coil support 24, and the winding of the coil 21 is wound around the outer periphery of the coil support 24;

[0075] The coil support 24 is snap-fitted with the terminal 22 .

[0076] In one embodiment, a hook 241 is provided on the coil support 24 , and a base 224 is provided on the terminal 22 . The hook 241 is engaged with the base 224 .

[0077] Specifically, the clamping platform 224 has a clamping surface away from the coil support 24. The hook 241 is clamped onto the clamping surface of the clamping platform 224, so that the magnetic ring 23 can be clamped between the coil 21 and the terminal 22, thereby improving the structural stability and compactness of the coil assembly 2.

[0078] At the same time, the hook 241 is engaged with the clamping platform 224, so that the magnetic ring 23, the terminal 22 and the coil support 24 can be easily connected in the axial direction of the coil assembly (for example, Figure 1 The components of the coil assembly 2 are tightly matched together in the vertical direction of the coil assembly to limit the relative movement of the components in the coil assembly 2 in the axial direction of the coil assembly.

[0079] Specifically, one or more hooks 241 may be provided on the coil support 24. In order to improve the strength and balance of the connection between the coil support 24 and the terminal 22, multiple hooks 241 may be provided on the coil support 24, and the multiple hooks 241 are evenly spaced on the coil support 24.

[0080] In one embodiment, see Figure 7 and Figure 8 Two hooks 241 are arranged on opposite sides of the coil support 24, and an annular clamping platform is arranged on the terminal 22, and the two hooks 241 are both clamped to the annular clamping surface of the annular clamping platform.

[0081] Alternatively, see Figures 7 to 10 The coil 21 is provided with a limiting protrusion 242 facing the terminal 22 , and a limiting groove 225 is provided on the peripheral side of the terminal 22 . The limiting protrusion 242 is suitable for anti-rotation cooperation with the limiting groove 225 .

[0082] Specifically, since the magnetic ring 23 is disposed between the coil 21 and the terminal 22, see Fig.11A avoidance groove 231 is provided on the circumferential side of the magnetic conductive ring 23, and the limiting protrusion 242 can be embedded in the avoidance groove 231 and the limiting groove 225 while facing the terminal 22, so that the magnetic conductive ring 23, the terminal 22 and the coil support 24 are tightly matched together in the circumferential direction of the coil assembly, thereby limiting the relative rotation of the components in the coil assembly 2 in the circumferential direction of the coil assembly.

[0083] It is understandable that the hook 241 may be located at an end of the limiting protrusion 242 away from the coil support 24 .

[0084] Furthermore, the stability of the assembly between the magnetic conductive ring 23 , the terminal 22 and the coil support 24 can better protect the coil 21 , and ensure that no failure occurs during the connection between the coil 21 and the diode 221 .

[0085] Alternatively, see Figures 7 to 10 A stop wall 243 is provided on the limiting protrusion 242 , and a stop area is formed between the stop wall 243 and the limiting protrusion 242 , and the winding of the coil 21 is suitable for passing through the stop area.

[0086] Specifically, the limiting protrusion 242 and the blocking wall 243 can be both arranged corresponding to the two ends of the coil 21. When the coil 21 is passed through the stop area, the two ends of the coil 21 can be blocked inward by the blocking wall 243, thereby improving the effectiveness of the coil 21 during the connection and winding process.

[0087] Alternatively, see Figure 7 A convex ring 244 is provided on the circumferential side of the coil support 24 , and a guide groove 2441 is provided on the convex ring 244 , and the winding of the coil 21 is suitable for passing through the guide groove 2441 .

[0088] Specifically, when the coil 21 is inserted into the guide groove 2441 , the coil 21 can be prevented from winding around the outside of the convex ring 244 , thereby reducing the connection path of the coil 21 and improving the convenience of connecting the coil 21 .

[0089] Optionally, the guide groove 2441 includes at least one first side surface, and the first side surface is not parallel to the central axis of the coil support.

[0090] Furthermore, the extension direction of the guide groove 2441 is consistent with the extension direction of the coil 21, while the extension direction of the coil 21 may be non-parallel to the central axis of the coil support, so that the winding of the coil 21 extends along the first side surface; for example, when the coil 21 extends obliquely, the first side surface of the oblique guide groove 2441 may be set to cooperate with the coil 21 to avoid friction between the winding of the coil 21 and the inner wall of the guide groove 2441.

[0091] See also Figure 1 , the embodiment of the present application provides an electric valve, which includes a housing 1 and the coil assembly 2;

[0092] The coil assembly 2 is disposed in the housing 1 .

[0093] Specifically, the coil assembly 2 of the electric valve includes a coil 21 and a terminal 22, wherein a diode 221 is disposed in the terminal 22, and the coil 21 is electrically connected to the diode 221; the terminal 22 is disposed at the center of the axial end of the coil 21. Connecting the diode 221 to the conduction path of the coil 21 can prevent the coil 21 from generating a large induced current at the moment of power on and power off, thereby ensuring the accuracy and stability of the overall control of the electric valve.

[0094] Alternatively, see Figure 1 The electric valve further comprises a valve core assembly 3. The coil assembly 2 and the housing 1 form an accommodating cavity, and the valve core assembly 3 is arranged in the accommodating cavity.

[0095] Specifically, at least a portion of the valve core assembly 3 is disposed in the accommodating cavity, and a portion of the valve core assembly 3 can extend out of the housing 1 to achieve the on-off action of the electric valve.

[0096] The electric valve can control parameters such as the on-off of the fluid, the direction, flow rate and speed of the fluid flow. Specifically, when current is passed through the coil 21, the valve core in the valve core assembly 3 is actuated to control the breaking of the fluid; when current is disconnected from the coil 21, the valve core in the valve core assembly 3 is reset to achieve smooth flow of the fluid.

[0097] Alternatively, see Figure 1 The electric valve further comprises a base 4, the valve core assembly 3 comprises a valve seat 31 and a valve body 32, the valve seat 31 is fixed in the accommodating cavity, the valve body 32 is movably arranged in the accommodating cavity, and the valve body 32 can extend from the housing 1 through the valve seat 31;

[0098] A flow channel is formed between the base 4 and the housing 1 , and the valve body 32 is configured to control the opening and closing of the flow channel.

[0099] Specifically, the valve body 32 includes a valve core 321, a valve stem 322, a spring 323, a core iron 324 and a magnetic isolation tube 325. The valve core 321 is connected to the core iron 324 through the valve stem 322, and the spring 323 is arranged between the core iron 324 and the valve seat 31; the magnetic isolation tube 325 is sleeved on the outside of the core iron 324 and connected to the valve seat 31, and the coil 21 is connected to the terminal 22 and then sleeved on the magnetic isolation tube 325 to ensure the compactness of the structure of the electric valve.

[0100] Specifically, the electric valve further includes a sealing seat 5 . The electric valve combines the base 4 , the valve core assembly 3 and the coil assembly 2 together through the shell 1 , and simultaneously fixes the sealing seat 5 on the periphery of the shell 1 and the coil assembly 2 .

[0101] When the coil 21 is energized, the coil 21 generates a magnetic field that can drive the core iron 324 to move toward the base 4. The core iron 324 drives the valve core to move and relatively seals the valve core 321 and the base 4, thereby realizing the opening and closing of the flow channel.

[0102] The embodiment of the present application also provides an air spring, the air spring comprising a main air chamber, a secondary air chamber and the electric valve;

[0103] The electric valve is disposed between the main air chamber and the auxiliary air chamber, and the electric valve is configured to control the on-off of the main air chamber and the auxiliary air chamber.

[0104] Specifically, in the electric valve of the air spring, the electric valve includes a housing 1; a coil assembly 2, the coil assembly 2 is arranged in the housing 1, the coil assembly 2 includes a coil 21 and a terminal 22, a diode 221 is arranged in the terminal 22, and the coil 21 is electrically connected to the diode 221; a valve core assembly 3, a receiving cavity is formed between the coil assembly 2 and the housing 1, and at least part of the valve core assembly 3 is arranged in the receiving cavity. The electric valve connects the diode 221 to the conduction path of the coil 21, which can prevent the coil 21 from generating a large induced current at the moment of power on and power off, and ensures the accuracy and stability of the on-off control of the main air chamber and the auxiliary air chamber.

[0105] An embodiment of the present application also provides a vehicle suspension, which includes an air spring.

[0106] In the air spring of the vehicle suspension, the main air chamber and the auxiliary air chamber of the air spring can be accurately and stably connected and disconnected, thereby improving the comfort of the vehicle suspension.

[0107] An embodiment of the present application also provides a vehicle, comprising the vehicle suspension.

[0108] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A coil assembly, characterized in that: include: A coil (21), a terminal (22) and a diode (221), wherein the terminal (22) is connected to the center position of the axial end of the coil (21), the terminal (22) comprises a first pin (222) and a second pin (223), and the diode (221) is connected between the first pin (222) and the second pin (223).

2. The coil assembly according to claim 1, characterized in that: The first plug pin (222) is provided with a first groove, the second plug pin (223) is provided with a second groove, one end of the diode (221) is connected to the first groove, and the other end of the diode (221) is connected to the second groove.

3. The coil assembly according to claim 2, characterized in that: The first plug pin (222) and the second plug pin (223) are both L-shaped; the first plug pin (222) is provided with the first groove at a bending position, and the second plug pin (223) is provided with the second groove at a bending position.

4. The coil assembly according to claim 3, characterized in that: The first plug pin (222) comprises a first transverse section (2221) and a first vertical section (2222) which are fixedly connected, and the second plug pin (223) comprises a second transverse section (2231) and a second vertical section (2232) which are fixedly connected, the first vertical section and the second vertical section both extend along the axial direction of the coil, the first transverse section extends from the first vertical section in a direction away from the second vertical section, and the second transverse section extends from the second vertical section in a direction away from the first vertical section.

5. The coil assembly according to claim 4, characterized in that: The first transverse section (2221) is provided with a first protrusion (2223), the first vertical section (2222) is provided with a second protrusion (2224), the first groove is formed between the first protrusion and the second protrusion, the second transverse section (2231) is provided with a third protrusion (2233), the second vertical section (2232) is provided with a fourth protrusion (2234), and the second groove is formed between the third protrusion and the fourth protrusion.

6. The coil assembly according to claim 4, characterized in that: The first vertical section is provided with a fifth protrusion, and the first groove is formed between the first transverse section and the fifth protrusion. The second vertical section is provided with a sixth protrusion, and the second groove is formed between the second transverse section and the sixth protrusion.

7. The coil assembly according to claim 1, characterized in that: The first plug pin (222) and the second plug pin (223) are symmetrically arranged on both sides of the axis of the coil (21).

8. The coil assembly according to claim 1, characterized in that: The coil assembly (2) further comprises a magnetic conductive ring (23), wherein the magnetic conductive ring (23) is arranged between the coil (21) and the terminal (22).

9. The coil assembly according to claim 1, characterized in that: The coil (21) comprises a coil support (24), and the winding of the coil (21) is wound around the outer circumference of the coil support (24); The coil support (24) is snap-fitted with the terminal (22).

10. The coil assembly according to claim 1, characterized in that: The coil (21) is provided with a limiting protrusion (242) facing the terminal (22). A limiting groove (225) is provided on the peripheral side of the terminal (22), and the limiting protrusion (242) is suitable for anti-rotation cooperation with the limiting groove (225).

11. The coil assembly according to claim 10, characterized in that: A stop wall (243) is provided on the limiting protrusion (242), a stop area is formed between the stop wall (243) and the limiting protrusion (242), and the winding of the coil (21) is suitable for passing through the stop area.

12. The coil assembly according to claim 1, characterized in that The coil (21) comprises a coil support (24), and the winding of the coil (21) is wound around the outer circumference of the coil support (24); A convex ring (244) is provided on the circumferential side of the coil support (24), a guide groove (2441) is provided on the convex ring (244), and the winding of the coil (21) is suitable for passing through the guide groove (2441).

13. The coil assembly according to claim 12, characterized in that: The guide groove (2441) includes at least one first side surface, and the first side surface is not parallel to the central axis of the coil support.

14. An electric valve, characterized in that: It comprises a housing (1) and a coil assembly (2) according to any one of claims 1 to 13; The coil assembly (2) is arranged in the housing (1).

15. The electric valve according to claim 14, characterized in that: It also comprises a valve core assembly (3), wherein a receiving cavity is formed between the coil assembly (2) and the housing (1), and the valve core assembly (3) is arranged in the receiving cavity.

16. An air spring, characterized in that: It comprises a main air chamber, a secondary air chamber and the electric valve according to claim 14 or 15; The electric valve is disposed between the main air chamber and the auxiliary air chamber, and the electric valve is configured to control the on-off of the main air chamber and the auxiliary air chamber.

17. A vehicle suspension, characterized in that: Includes the air spring as claimed in claim 16.

18. A vehicle, characterized in that: A vehicle suspension comprising the vehicle suspension of claim 17.

Images