Coil assembly, electromagnetic valve, air spring, active suspension and vehicle

Abstract

The utility model provides a coil assembly, an electromagnetic valve, an air spring, an active suspension and a vehicle. The coil assembly is applied to the electromagnetic valve. The coil component comprises a coil component and a terminal, the terminal is arranged at one axial end of the coil component, and the terminal is detachably connected with the coil component. According to the coil assembly provided by the invention, the machining difficulty is effectively reduced, so that the machining difficulty of the electromagnetic valve is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of control valves, and in particular relates to a coil assembly, a solenoid valve, an air spring, an active suspension and a vehicle. Background Art

[0002] Solenoid valve is an industrial device controlled by electromagnetics. It is a basic component for controlling fluid automation. It is an actuator and is not limited to hydraulic or pneumatic. Solenoid valves can be used with different circuits to achieve the desired control to adjust the direction, flow, speed and other parameters of the medium. Since solenoid valves have good control accuracy and stability, they are widely used in automobile production and modification. However, the processing of solenoid valves in related technologies is difficult. Utility Model Content

[0003] In view of the shortcomings of the prior art, the present application provides a coil assembly, a solenoid valve, an air spring, an active suspension and a vehicle that are simple and convenient to assemble and help reduce the difficulty of processing.

[0004] In one aspect, the present application provides a coil assembly, applied to a solenoid valve, comprising:

[0005] Coil components;

[0006] The terminal is arranged at one axial end of the coil component, and the terminal is detachably connected to the coil component.

[0007] In a possible implementation manner, the coil component is provided with a buckle, and the terminal is provided with a slot, and the buckle and the slot are suitable for snap-fitting.

[0008] In a possible implementation, the coil component includes a winding post and a boss disposed at one end of the winding post, and the buckle is disposed on the boss.

[0009] In a possible embodiment, the winding column includes a first step and a column that are fixedly connected, and the column is used to wind the wire group of the coil component; the first step is arranged at one end of the column close to the terminal, and a portion of the first step protrudes radially outward along the column; a first wire threading groove is arranged on the peripheral side wall of the first step, and the wire group of the coil component is suitable for passing through the first wire threading groove.

[0010] In a possible implementation manner, the first wire threading groove includes at least one first side surface, and the first side surface is not parallel to the central axis of the winding pole.

[0011] In a possible embodiment, the first wire threading groove includes a first side surface and a second side surface that are relatively arranged, the first side surface is inclined relative to the central axis of the winding pole, the second side surface is inclined relative to the central axis of the winding pole, and the inclination direction of the first side surface is the same as the inclination direction of the second side surface.

[0012] In a possible implementation manner, the boss is disposed at an end of the first step away from the column, and the boss is provided with a second threading groove, and the second threading groove is used for passing the wire group.

[0013] In a possible embodiment, the boss includes a first part and a second part, the first part is connected to the first step; the second part is connected to the first part, and the extension direction of the second part is arranged at an angle to the extension direction of the first part to form the second threading groove.

[0014] In a possible implementation manner, the first step is in a circular ring shape, and the radial dimension of the outer diameter of the first step is greater than the radial dimension of the column.

[0015] In a possible implementation manner, the winding column further includes a second step, and the second step and the first step are arranged at opposite ends of the column along the axial direction.

[0016] In a possible implementation manner, the buckle is disposed at an end of the boss away from the winding post.

[0017] In a possible implementation manner, a plurality of the bosses are provided, and the buckles are provided on at least some of the plurality of bosses.

[0018] In a possible implementation manner, two bosses are provided, the two bosses are provided with buckles, and the two bosses are arranged opposite to each other along the diameter direction of the winding rod.

[0019] In a possible implementation manner, the two bosses have different structures.

[0020] In a possible implementation manner, the coil assembly further includes a magnetic conductive ring, and the magnetic conductive ring is disposed between the terminal and the coil component.

[0021] In a possible implementation manner, a limiting groove is provided on the outer side wall of the terminal, an avoiding groove is provided on the outer side wall of the magnetic conductive ring, and the boss passes through the avoiding groove and is received in the limiting groove.

[0022] In a possible implementation manner, the terminal further includes a pin, the pin radially passes through the terminal, and the pin is electrically connected to the wire group of the coil component.

[0023] On the other hand, the present application provides a solenoid valve, including a valve body assembly and the above-mentioned coil assembly, wherein the terminal is located on one side of the valve body assembly, and the coil assembly is sleeved outside the valve body assembly.

[0024] On the other hand, the present application provides an air spring, including a main air chamber, a secondary air chamber and the above-mentioned solenoid valve, wherein the solenoid valve is used to control the connection and disconnection between the main air chamber and the secondary air chamber.

[0025] On the other hand, the present application provides an active suspension, including the above-mentioned solenoid valve or the above-mentioned air spring.

[0026] On the other hand, the present application provides a vehicle, comprising the above-mentioned solenoid valve or the above-mentioned air spring or the above-mentioned active suspension.

[0027] The coil assembly provided in the present application is detachably connected to the coil component via a terminal, so as to reduce the difficulty of processing the coil assembly, thereby reducing the difficulty of processing the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some implementation methods provided by the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 This is a structural diagram of a solenoid valve provided in one embodiment of the present application;

[0030] Figure 2 is a cross-sectional view of a solenoid valve provided in one embodiment of the present application;

[0031] Figure 3 is a structural diagram of a coil assembly provided in one embodiment of the present application;

[0032] Figure 4 is a partial cross-sectional view of a coil assembly provided in one embodiment of the present application;

[0033] Figure 5 is a structural diagram of another coil assembly provided in one embodiment of the present application;

[0034] Figure 6 is a structural diagram of a terminal provided in one embodiment of the present application;

[0035] Figure 7 is a front view of a terminal provided in one embodiment of the present application;

[0036] Figure 8is a structural diagram of a coil component provided by an embodiment of the present application;

[0037] Fig. 9 is a front view of a coil component provided in one embodiment of the present application;

[0038] Fig.10 This is a structural diagram of a magnetic conductive ring provided in one embodiment of the present application. DETAILED DESCRIPTION

[0039] The technical solution of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described implementation methods are only part of the implementation methods of the present application, rather than all the implementation methods. Based on the implementation methods in the present application, all other implementation methods obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0040] The following descriptions of the embodiments are with reference to the attached drawings, which are used to illustrate specific embodiments that the present application can be implemented. The directional terms mentioned in the description of the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "top", "side", "bottom", "top wall", "side wall", "bottom wall", "inner side wall", "outer side wall", "length direction", "width direction", "height direction", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In the description of the present application, for example, "first", "second", "third", "fourth", etc., are only used to distinguish the objects described, and do not have any order or technical meaning. In the description of the present application, the "connection" and "connection" involved, if not otherwise specified, include direct connection (connection) and indirect connection (connection). It should be understood that in the description of the present application, "axial" and "radial" are both relative to the axial direction and radial direction of the solenoid valve in the drawings of the present application.

[0041] The structure of the solenoid valve provided by the present application is described and explained in detail below in conjunction with the accompanying drawings:

[0042] See also Figure 1 and Figure 2 , Figure 1 is a structural diagram of a solenoid valve provided in one embodiment of the present application, Figure 2 It is a cross-sectional view of a solenoid valve provided in one embodiment of the present application.

[0043] The present embodiment provides a solenoid valve 100, which includes a housing assembly 10, a valve body assembly 30 and a coil assembly 50. The housing assembly 10 includes a housing 11, a base 12 and a sealing seat 13, the valve body assembly 30 includes a valve seat 31, a moving part 32, a valve core 33, a connecting rod 34, a magnetic isolation tube 35 and an elastic part 36, and the coil assembly 50 includes a terminal 51, a coil member 52 and a magnetic conductive ring 53.

[0044] The housing 11 has a receiving cavity 111 extending through the axial direction of the solenoid valve 100. The base 12 is fixedly connected to one end of the bottom of the housing 11, and at least part of the base 12 is disposed outside the receiving cavity 111 of the housing 11. The sealing seat 13 is sleeved on one end of the top of the housing 11, and the sealing seat 13 is sealed to the peripheral side wall of the housing 11.

[0045] The valve seat 31 is fixed in the receiving chamber 111, and the peripheral side wall of the valve seat 31 is sealed and connected to the inner side wall of the shell 11. The moving member 32 is movably arranged in the receiving chamber 111 along the axial direction of the solenoid valve 100, and the moving member 32 and the base 12 are arranged on opposite sides of the valve seat 31 along the axial direction of the solenoid valve 100. Among them, the moving member 32 is a magnetic body, and the moving member 32 can move along the axial direction of the solenoid valve 100 in the electromagnetic field formed by the circular current. The valve core 33 is movably arranged in the receiving chamber 111 along the axial direction of the solenoid valve 100, and the valve core 33 is movably arranged between the valve seat 31 and the base 12 along the axial direction of the solenoid valve 100. The connecting rod 34 is movably arranged in the receiving chamber 111 along the axial direction of the solenoid valve 100, and the connecting rod 34 is movably penetrated through the valve seat 31 along the axial direction of the solenoid valve 100, one end of the connecting rod 34 is connected to the moving member 32, and the other end is connected to the valve core 33. The magnetic isolation tube 35 is accommodated in the accommodation chamber 111. The magnetic isolation tube 35 has an accommodation chamber 351 and an opening connected to the accommodation chamber. The opening is fixedly sleeved on the end of the valve seat 31 away from the base 12. The moving member 32 is accommodated in the accommodation chamber 351 and can move in the axial direction of the solenoid valve 100 in the accommodation chamber 351. The elastic member 36 is elastically compressed between the moving member 32 and the valve seat 31 in the axial direction. The elastic member 36 can reduce the impact force and impact speed of the moving member 32 on the valve seat 31.

[0046] Part of the terminal 51 is located in the receiving cavity 111, and the other part is exposed from the receiving cavity 111, and the exposed part of the terminal 51 is located at one end of the top of the shell 11, and the peripheral side wall of the part of the terminal 51 exposed from the shell 11 is sealed and connected to the inner side wall of the sealing seat 13. The coil component 52 is received in the receiving cavity 111 and connected to the terminal 51, and the coil component 52 is sleeved on the periphery of the magnetic isolation tube 35. The coil component 52 is used to form an electromagnetic induction force after power is turned on, and the electromagnetic induction force is used to drive the moving part 32 to move along the axial direction of the solenoid valve 100, and then drive the valve core 33 to move along the axial direction of the solenoid valve 100 through the connecting rod 34, so as to achieve the blocking of the fluid channel of the base 12. The magnetic conductive ring 53 is sleeved on the periphery of the end of the magnetic isolation tube 35 away from the valve seat 31, and the magnetic conductive ring 53 is arranged between the terminal 51 and the coil component 52. The magnetic conductive ring 53 can concentrate and enhance the magnetic field, making the magnetic field more concentrated and evenly distributed. The magnetic conductive ring 53 can shield the interference of the external magnetic field and protect the internal devices from the influence of the external magnetic field.

[0047] The solenoid valve 100 provided in this embodiment forms an electromagnetic field when the coil component 52 is energized. The magnetic movable part 32 moves from top to bottom along the axial direction of the solenoid valve 100 under the action of the electromagnetic field formed by the coil component 52, so that the valve core 33 is sealed with the base 12, and then the fluid channel of the base 12 is blocked by the valve core 33 to achieve valve closing.

[0048] See also Figures 2 to 10 , Figure 3 is a structural diagram of a coil assembly provided in one embodiment of the present application. Figure 4 is a partial cross-sectional view of a coil assembly provided in one embodiment of the present application, Figure 5 is a structural diagram of another coil assembly provided in one embodiment of the present application. Figure 6 is a structural diagram of a terminal provided in one embodiment of the present application, Figure 7 is a front view of a terminal provided in one embodiment of the present application, Figure 8 is a structural diagram of a coil component provided in one embodiment of the present application, Fig. 9 is a front view of a coil component provided in one embodiment of the present application, Fig.10 This is a structural diagram of a magnetic conductive ring provided in one embodiment of the present application.

[0049] See also Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 8In the solenoid valve 100 provided in this embodiment, the terminal 51 is arranged at one end of the axial direction of the coil component 52, and the terminal 51 is detachably connected to the coil component 52. The terminal 51 is detachably connected to the coil component 52, so that the coil component 52 and the terminal 51 are fixedly connected, which effectively reduces the processing difficulty of the coil component 50, thereby reducing the processing difficulty of the solenoid valve 100. Moreover, since the terminal 51 and the coil component 52 are detachably connected, terminals 51 of different specifications can be switched at will, and when one of the terminal 51 and the coil component 52 has a problem, it is easy to repair or replace.

[0050] The coil member 52 has a buckle 521, and a slot 511 is provided on the peripheral side wall of the terminal 51, and the buckle 521 is engaged with the slot 511. The buckle 521 of the coil member 52 is engaged with the slot 511 on the peripheral side wall of the terminal 51, so that the coil member 52 and the terminal 51 are fixedly connected, and the assembly is simple and convenient, which is conducive to improving the overall assembly efficiency of the solenoid valve 100. At the same time, the buckle 521 is engaged with the slot 511, which can prevent the coil member 52 and the terminal 51 from rotating relative to each other, and can also prevent the coil member 52 and the terminal 51 from moving relative to each other, which is conducive to improving the stability of the connection between the terminal 51 and the coil member 52.

[0051] See also Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 8 In a specific embodiment, the coil component 52 includes a winding post 522 and a boss 523 disposed at one end of the winding post 522, and the buckle 521 is disposed on the boss 523. A limiting groove 512 is disposed on the outer wall of the terminal 51, and the buckle 511 is disposed in the limiting groove 512. An avoidance groove 531 is disposed on the outer wall of the magnetic ring 53, and the boss 523 penetrates the avoidance groove 531 and is accommodated in the limiting groove 512. The boss 523 penetrates the avoidance groove 531 and is accommodated in the limiting groove 512, so that the boss 523 limits the coil component 52, the magnetic ring 53 and the terminal 51, which can prevent any two of the coil component 52, the magnetic ring 53 and the terminal 51 from rotating relative to each other, which is beneficial to improving the stability of the coil assembly 50 in the solenoid valve 100.

[0052] In this embodiment, the number of bosses 523 is two, and both bosses 523 are arranged on the winding post 522, and the two bosses 523 are arranged opposite to each other along the diameter direction of the winding post 522. At the same time, the number of corresponding buckles 521 is also two, and the two buckles 521 are respectively located on the two bosses 523, and the two buckles 521 extend radially toward each other. At the same time, the number of corresponding slots 511 is also two, and the two buckles 521 are radially arranged on the peripheral side wall of the terminal 51, and the two buckles 521 and the two slots 511 are respectively snap-fitted to fix the coil component 52 and the terminal 51. The two buckles 521 and the two slots 511 are respectively snap-fitted to make the connection between the coil component 52 and the terminal 51 more stable.

[0053] Furthermore, the buckle 521 is disposed at an end of the boss 523 away from the winding post 522 , so that the buckle 521 can be engaged with the slot 511 .

[0054] Furthermore, the distance between the two bosses 523 is made as far as possible to achieve a better effect of the snap fit between the buckle 521 and the slot 511 .

[0055] Furthermore, the structures of the two bosses 523 can be designed to be different, so that the coil assembly 50 has a fool-proof function during assembly, which is beneficial to improving the accuracy of assembly of the coil assembly 50.

[0056] It is understandable that in some other embodiments, the number of bosses 523 can be one, three, four, etc., the number of corresponding buckles 521 can also be one, three, four, etc., and the number of corresponding slots 511 can also be one, three, four, etc., as long as each buckle 521 can be engaged with a corresponding slot 511, and this application does not limit this. For example, the number of bosses 523 is three, the number of buckles 521 is three, and the number of slots 511 is three; or, the number of bosses 523 is three, the number of buckles 521 is two, and the number of slots 511 is two.

[0057] In this embodiment, the number of the limiting grooves 512 provided on the outer wall of the terminal 51 matches the number of the bosses 523, that is, the number of the limiting grooves 512 on the outer wall of the terminal 51 is also two. The number of the avoidance grooves 531 on the magnetic ring 53 matches the number of the bosses 523, that is, the number of the avoidance grooves 531 on the magnetic ring 53 is also two. The two avoidance grooves 531 of the two magnetic rings 53 are respectively penetrated through the two bosses 523 and then accommodated in the two limiting grooves 512, so that the connection between the coil member 52, the magnetic ring 53 and the terminal 51 is more stable.

[0058] It can be understood that in some other embodiments, the number of bosses 523 can be one, three, four, etc., the number of avoidance grooves 531 on the corresponding magnetic ring 53 can also be one, three, four, etc., and the number of limiting grooves 512 on the corresponding terminal 51 can also be one, three, four, etc. It is only necessary to satisfy that the number of bosses 523, avoidance grooves 531 and limiting grooves 512 is equal, and each boss 523 can pass through a corresponding avoidance groove 531 and be accommodated in a corresponding limiting groove 512. The present application does not impose any restrictions on this.

[0059] In a specific embodiment, the terminal 51 further includes a pin 513, which penetrates the terminal 51 in a radial direction and is electrically connected to a wire group 524 of the coil member 52. The pin 513 is electrically connected to the wire group 524, so that the wire group 524 can be electrically connected to an external power source through the pin 513 and energized, thereby realizing the valve closing function of the solenoid valve 100.

[0060] Furthermore, making the distance between the two bosses 523 as far as possible can make the distance between the pins 513 as far as possible, which is beneficial to reducing the defective rate of the coil assembly 50.

[0061] See also Figure 3 , Figure 4 , Figure 8 and Fig. 9 In a specific embodiment, the coil member 52 includes a winding post 522 and a boss 523 disposed at one end of the winding post 522, and the buckle 521 is disposed on the boss 523. The winding post 522 includes a first step 5221, a column 5222 and a second step 5223. The first step 5221 and the second step 5223 are disposed at opposite ends of the column 5222 along the axial direction, and the column 5222 is used to wind the wire group 524 of the coil member 52. The first step 5221 is closer to the terminal 51 than the second step 5223, and a portion of the first step 5221 protrudes outwardly in the radial direction of the column 5222, for example, the radial dimension of the first step 5221 may be greater than the radial dimension of the column 5222, and the boss 523 is disposed at one end of the first step 5221 away from the column 5222. A first threading groove 5224 is provided on the peripheral side wall of the first step 5221, and the wire group 524 of the coil member 52 passes through the first threading groove 5224. By providing the first threading groove 5224 on the first step 5221, the wire group 524 can pass through the first threading groove 5224 from the column 5222 to the side of the first step 5221 away from the column 5222 and pass out, so that the wire group 524 can be prevented from being outside the peripheral side wall of the first step 5221, and the friction between the wire group 524 and other structures can be reduced to reduce the damage of the wire group 524.

[0062] It is understandable that in some other embodiments, the second step 5223 of the winding post 522 can be omitted to make the structure of the winding post 522 and the coil assembly 50 simpler, and the present application is not limited to this.

[0063] In this embodiment, the first step 5221, the column 5222 and the second step 5223 are all annular, the radial dimension of the first step 5221 is larger than the radial dimension of the column 5222, and the radial dimension of the second step 5223 is larger than the radial dimension of the column 5222. By making the radial dimension of the first step 5221 larger than the radial dimension of the column 5222 and the radial dimension of the second step 5223 larger than the radial dimension of the column 5222, the wire group 524 of the coil member 52 is wound on the column 5222 with better stability.

[0064] It is understandable that in some other embodiments, the first step 5221, the column 5222 and the second step 5223 can be prisms or other shapes, and the size relationship between the first step 5221, the column 5222 and the second step 5223 can be other relationships, and the present application does not limit this.

[0065] Furthermore, the first threading groove 5224 includes a first side surface and a second side surface that are arranged opposite to each other, the first side surface is inclined relative to the central axis of the first step 5221 or the winding post 522, the second side surface is inclined relative to the central axis of the first step 5221 or the winding post 522, and the inclination direction of the first side surface relative to the central axis of the first step 5221 is the same as the inclination direction of the second side surface relative to the central axis of the first step 5221. The first threading groove 5224 is arranged to be inclined relative to the central axis of the first step 5221, so that the wire group 524 can be passed through the first threading groove 5224 along the winding direction, and the stress generated between the end of the first threading groove 5224 and the inner wall of the first threading groove 5224 can be reduced, thereby preventing the risk of the wire group 524 breaking when passing through the first threading groove 5224. Specifically, the inclination direction of the first threading groove 5224 is close to the winding direction of the wire group 524 on the column 5222, so that when the wire group 524 is passing through the first threading groove 5224, the inclination angle between the wire group 524 and the side wall that the first threading groove 5224 first contacts is an obtuse angle, which can reduce the stress on the wire group 524 when passing through the first threading groove 5224.

[0066] It can be understood that in some other embodiments, only the first side surface of the first threading groove 5224 is not parallel to the central axis of the winding pole 522, or only the second side surface of the first threading groove 5224 is not parallel to the central axis of the winding pole 522, and there is no restriction on whether the other side surface of the first threading groove 5224 is parallel to the central axis of the first step 5221 or the winding pole 522.

[0067] Furthermore, the boss 523 is arranged at one end of the first step 5221 away from the column 5222, and a second threading groove 5231 is arranged at the connection between the boss 523 and the first step 5221. The second threading groove 5231 is used for threading the wire group 524 of the coil component 52, so that the wire group 524 of the coil component 52 passes out from the side of the edge of the boss 523 away from the first step 5221. Through the design of the second threading groove 5231, the wire group 524 passing through the first threading groove 5224 can pass through the second threading groove 5231 to reach the side of the edge of the boss 523 away from the first step 5221 and pass out, which can reduce the risk of wear between the wire group 524 and other structures outside the coil component.

[0068] It is understandable that in some other embodiments, the second threading groove 5231 is not limited to being set at the connection between the boss 523 and the first step 5221, and the second threading groove 5231 can be set at other positions of the boss 523, and the present application does not impose any restrictions on this.

[0069] It is understandable that the second threading groove 5231 can be a through hole or a slot-shaped hole arranged on the edge of the boss 523. It only needs to ensure that the second threading groove 5231 radially penetrates the boss 523, and the present application does not impose any restrictions on this.

[0070] Further, the boss 523 includes a first portion 5232 and a second portion 5233, the first portion 5232 extends axially and is connected to the first step 5221, and the buckle 521 is arranged at one end of the first portion 5232 away from the first step 5221. The second portion 5233 is connected to one end of the first portion 5232 away from the first step 5221 and extends radially, and the second portion 5233 is arranged at a distance from the first step 5221. Through the arrangement of the second portion 5233, the second portion 5233 is used to prevent the wire group 524 that is passed from the second threading groove 5231 to the edge of the boss 523 away from the first step 5221 from moving toward the edge of the first step 5221, which is conducive to improving the stability of the wire group 524 in the coil.

[0071] It can be understood that in some other embodiments, the first part 5232 is not limited to extending in the axial direction, and the second part 5233 is not limited to extending in the radial direction. It is only necessary to ensure that the extension direction of the first part 5232 and the extension direction of the second part 5233 form an angle. At the same time, the angle formed by the first part 5232 and the second part 5233 forms a second threading groove 5231, and the present application does not impose any restrictions on this.

[0072] An air spring provided in this embodiment includes a main air chamber, an auxiliary air chamber and a solenoid valve 100 as provided in the previous embodiment. The solenoid valve 100 can be connected between the main air chamber and the auxiliary air chamber to control the on-off between the main air chamber and the auxiliary air chamber, thereby realizing the transformation of different stiffness of the air spring.

[0073] The present embodiment provides an active suspension, including the solenoid valve 100 provided in the above embodiment or the air spring provided in the above embodiment.

[0074] This embodiment provides a vehicle, including the solenoid valve 100 provided in the above embodiment, or the air spring provided in the above embodiment, or the active suspension provided in the above embodiment.

[0075] The above are some implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A coil assembly, applied to a solenoid valve, characterized in that: include: Coil components; The terminal is arranged at one axial end of the coil component, and the terminal is detachably connected to the coil component.

2. The coil assembly according to claim 1, characterized in that The coil component is provided with a buckle, and the terminal is provided with a slot, and the buckle and the slot are suitable for snap-fitting.

3. The coil assembly according to claim 2, characterized in that The coil component comprises a winding post and a boss arranged at one end of the winding post, and the buckle is arranged on the boss.

4. The coil assembly according to claim 3, characterized in that The winding column includes a first step and a column that are fixedly connected, and the column is used to wind the wire group of the coil component; the first step is arranged at one end of the column close to the terminal, and a portion of the first step protrudes outward radially along the column; a first wire threading groove is arranged on the peripheral side wall of the first step, and the wire group of the coil component is suitable for passing through the first wire threading groove.

5. The coil assembly according to claim 4, characterized in that The first wire threading groove includes at least one first side surface, and the first side surface is not parallel to the central axis of the winding column.

6. The coil assembly according to claim 4, characterized in that The first wire threading groove includes a first side surface and a second side surface that are arranged opposite to each other, the first side surface is inclined relative to the central axis of the winding column, the second side surface is inclined relative to the central axis of the winding column, and the inclination direction of the first side surface is the same as the inclination direction of the second side surface.

7. The coil assembly according to claim 4, characterized in that: The boss is arranged at an end of the first step away from the column, and the boss is provided with a second threading groove, and the second threading groove is used for the threading of the wire group.

8. The coil assembly according to claim 7, characterized in that The boss includes a first part and a second part, the first part is connected to the first step; the second part is connected to the first part, and the extension direction of the second part is arranged at an angle with the extension direction of the first part to form the second threading groove.

9. The coil assembly according to claim 4, characterized in that: The first step is in the shape of a circular ring, and the radial dimension of the outer diameter of the first step is greater than the radial dimension of the column.

10. The coil assembly according to claim 4, characterized in that The winding column further includes a second step, and the second step and the first step are arranged at two opposite ends of the column along the axial direction.

11. The coil assembly according to claim 3, characterized in that: The buckle is arranged at an end of the boss away from the winding post.

12. The coil assembly according to claim 3, characterized in that The bosses are provided in plurality, and the buckles are provided on at least some of the bosses.

13. The coil assembly according to claim 3, characterized in that The two bosses are provided with buckles, and the two bosses are arranged opposite to each other along the diameter direction of the winding rod.

14. The coil assembly according to claim 13, characterized in that The two bosses have different structures.

15. The coil assembly according to claim 3, characterized in that The coil assembly further includes a magnetic conductive ring, which is arranged between the terminal and the coil component.

16. The coil assembly according to claim 15, characterized in that A limiting groove is arranged on the outer wall of the terminal, an avoidance groove is arranged on the outer wall of the magnetic conductive ring, and the boss passes through the avoidance groove and is accommodated in the limiting groove.

17. The coil assembly according to claim 1, characterized in that The terminal further includes a pin, which passes through the terminal in a radial direction and is electrically connected to a wire group of the coil component.

18. A solenoid valve, characterized in that: It comprises a valve body assembly and a coil assembly as claimed in any one of claims 1 to 17, wherein the terminal is located on one side of the valve body assembly, and the coil component is sleeved outside the valve body assembly.

19. An air spring, characterized in that: It comprises a main air chamber, a subsidiary air chamber and a solenoid valve according to claim 18, wherein the solenoid valve is used to control the connection and disconnection between the main air chamber and the subsidiary air chamber.

20. An active suspension, characterized in that: Comprising a solenoid valve according to claim 18 or an air spring according to claim 19.

21. A vehicle, characterized in that: It comprises a solenoid valve according to claim 18 or an air spring according to claim 19 or an active suspension according to claim 20.

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