Electric control valve, air spring and vehicle

Abstract

The utility model relates to an electric control valve, an air spring and a vehicle, the electric control valve comprises a coil assembly and a transmission terminal, and the coil assembly and the transmission terminal are fixedly connected through a quick connection structure. According to the electric control valve, the transmission terminal and the coil assembly are connected through the quick connection structure, so that the transmission terminal and the coil assembly can be quickly connected, the electric control valve is convenient to install, and the production efficiency of the electric control valve is improved. Meanwhile, the transmission terminal and the coil assembly can be quickly disassembled, and replacement and maintenance of parts are facilitated.

Description

Technical Field

[0001] The present application relates to the field of electronically controlled valves, and in particular to an electronically controlled valve, an air spring, and a vehicle. Background Art

[0002] An electrically controlled valve electrically controls the opening and closing of a valve to connect or separate a sealed cavity. For example, in a sealed cavity like an air spring, the airbag consists of a primary and secondary air chamber. The electrically controlled valve is located between the primary and secondary chambers to control the stiffness of the air spring.

[0003] Electric control valves contain multiple components that work together to achieve their functions. Installing and removing these components is complex, laborious, and time-consuming, hindering assembly and maintenance. Utility Model Content

[0004] In view of the above-mentioned technical problems, the purpose of this application is to provide a quick-connect electric control valve, an air spring and a vehicle including the electric control valve. The specific technical solutions include the following:

[0005] In a first aspect, an embodiment of the present application provides an electrically controlled valve, comprising: a coil assembly and a transmission terminal, wherein the coil assembly and the transmission terminal are fixedly connected via a quick-connect structure.

[0006] The transmission terminal and coil assembly of the electric control valve of this application are connected by a quick-connect structure, which facilitates the installation of the electric control valve and improves the production efficiency of the electric control valve. At the same time, the transmission terminal and coil assembly can be quickly disassembled, which facilitates component replacement and maintenance.

[0007] In one embodiment, the quick-connect structure is a plug-in structure, and the transmission terminal is connected along the axial direction of the coil assembly and fixed to the coil assembly.

[0008] In this embodiment, the transmission terminal is connected to the coil assembly via a plug-in structure. The transmission terminal is inserted into the coil assembly along the axial direction of the coil assembly and is fixedly connected to the coil assembly. The quick-connect structure in this embodiment enables rapid fixation of the transmission terminal and the coil assembly.

[0009] In one embodiment, the quick-connect structure is a plug-in structure, the coil assembly includes a positioning groove, the positioning groove is provided at one end of the coil assembly facing the transmission terminal, the transmission terminal includes a transmission member, and the transmission member is partially plugged into the positioning groove.

[0010] In this embodiment, the coil assembly includes a positioning groove arranged at one end toward the transmission terminal, the transmission terminal includes a transmission member extending toward the coil assembly, the transmission member is inserted into the positioning groove, and the end of the transmission member is connected to the positioning groove, so that the coil assembly and the transmission terminal form a fixed connection.

[0011] In one embodiment, the portion of the transmission member inserted into the positioning slot extends along the axial direction of the coil assembly.

[0012] In one embodiment, the coil assembly includes a valve body and a coil, the coil is sleeved on the outer wall of the valve body, and the positioning groove is provided on the valve body.

[0013] In one embodiment, the portion of the transmission member inserted into the positioning slot is also used for conducting with the coil.

[0014] In one embodiment, a coil groove is recessed in the outer wall of the valve body, and the coil groove is used to fix and at least partially accommodate the coil.

[0015] In this embodiment, the coil is wound within a coil groove on the outer wall of the valve body. The groove accommodates and restrains the coil, preventing it from moving along the valve body axis toward either end and potentially falling off. It also prevents wear between the coil and other components of the electronically controlled valve, which could affect the coil's conduction.

[0016] In one embodiment, the valve body is provided with a coil positioning groove, and the end of the coil is suitable for passing through the coil positioning groove and electrically connected to the transmission member plugged into the positioning groove.

[0017] In one embodiment, the coil has a rotation direction and a lift angle when wound on the coil slot, and the coil positioning slot extends along the rotation direction and the lift angle of the coil.

[0018] In one embodiment, the coil assembly includes a limiting step, and the positioning groove is provided on the limiting step.

[0019] In one embodiment, the transmission terminal is provided with a first limiting groove, and the limiting step or the positioning groove is at least partially located in the first limiting groove to limit the relative rotation of the transmission terminal and the coil assembly.

[0020] In one embodiment, the electrically controlled valve includes a magnetic ring, which is disposed between the coil assembly and the transmission terminal. The magnetic ring is used to increase the magnetic field generated by the coil.

[0021] In this embodiment, a magnetic ring is arranged between the coil assembly and the transmission terminal. When energized, the coil generates a magnetic field, and the magnetic field passes through the magnetic ring. The magnetic ring can concentrate and enhance the magnetic field generated by the coil, making the magnetic field more concentrated and evenly distributed, which is conducive to the movement of the valve core under the drive of the magnetic field.

[0022] In one embodiment, the magnetic conductive ring includes a second limiting groove, and at least a portion of the limiting step or at least a portion of the positioning groove is located in the second limiting groove to limit the relative rotation of the magnetic conductive ring and the coil assembly.

[0023] On the second aspect, an embodiment of the present application also provides an air spring, which includes an airbag and the above-mentioned electric control valve. The airbag includes a main air chamber and a secondary air chamber. The electric control valve is arranged between the main air chamber and the secondary air chamber, and is used to separate or connect the main air chamber and the secondary air chamber in the air spring, thereby realizing the adjustment of the air spring stiffness.

[0024] In a third aspect, an embodiment of the present application further provides a vehicle, which includes the above-mentioned electric control valve or the above-mentioned air spring.

[0025] The air spring and vehicle of the present application are easy to replace and maintain because they adopt the above-mentioned electric control valve. At the same time, the installation of the electric control valve is simpler and has higher production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the internal cross-section of an electrically controlled valve provided in one embodiment of the present application;

[0027] Figure 2 This is a partial structural diagram of an electrically controlled valve provided in one embodiment of the present application;

[0028] Figure 3 This is a schematic diagram of the partially exploded structure of an electrically controlled valve provided in one embodiment of the present application;

[0029] Figure 4 This is a schematic diagram of the transmission terminal structure provided in one embodiment of the present application;

[0030] Figure 5 This is a partial structural diagram of a coil assembly provided in one embodiment of the present application;

[0031] Figure 6 This is a schematic diagram of a quick-connect structure provided in one embodiment of the present application;

[0032] Figure 7 This is a schematic diagram of the structure of the magnetic conductive ring provided in one embodiment of the present application. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0034] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application include direct and indirect connections (couplings) unless otherwise specified. The directional terms mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", 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 on the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0036] The present application relates to an air spring comprising an airbag and an electrically controlled valve. The airbag contains gas, and the compressibility of the gas is utilized to achieve the elastic effect of the air spring. The airbag comprises a main air chamber and a secondary air chamber. The main air chamber is primarily used to withstand external loads and compress the gas within. The secondary air chamber is used to adjust the stiffness of the air spring. When the main and secondary air chambers are connected, the volume within the main air chamber increases, making the gas within it more easily compressed, thereby reducing the stiffness of the air spring.

[0037] The electrically controlled valve of the present application is arranged between the main air chamber and the auxiliary air chamber to connect or separate the main air chamber and the auxiliary air chamber, thereby changing the stiffness of the air spring.

[0038] See also Figure 1-Figure 3 ,in, Figure 1 Schematic diagram of the internal cross-section of the electric control valve 100 provided in one embodiment of the present application is shown. Figure 2 A partial structural diagram of an electrically controlled valve 100 provided in one embodiment of the present application is shown; Figure 3 A schematic diagram of a partially exploded structure of an electrically controlled valve 100 provided in an embodiment of the present application is shown.

[0039] The electrically controlled valve 100 provided in this application includes a coil assembly 10 and a transmission terminal 20. The coil assembly 10 is in an axisymmetric columnar shape, and a quick-connect structure 14 is provided at one end of the coil assembly 10 facing the transmission terminal 20. The coil assembly 10 is connected to the transmission terminal 20 via the quick-connect structure 14.

[0040] Specifically, in one embodiment, Figure 2As shown, a transmission member 21 is provided at one end of the transmission terminal 20, and the transmission member 21 extends toward the coil assembly 10. The quick-connect structure 14 extends toward the transmission terminal 20. The transmission member 21 is inserted into the quick-connect structure 14 and fixedly connected to the quick-connect structure 14, thereby connecting the transmission terminal 20 to the coil assembly 10.

[0041] exist Figure 1 In the provided electrically controlled valve 100, a valve body 101 is provided at the end of the coil assembly 10 away from the transmission terminal 20. The valve body 101 is provided with a valve port 11 at the end away from the transmission terminal 20. The outer wall of the coil assembly 10 is used to support a wound coil 40. The coil 40 is located on the side of the coil assembly 10 away from the valve port 11 and is electrically connected to a power source. The transmission terminal 20 includes a power slot 22, located on the end surface away from the valve body, for connecting to a power source. Two transmission members 21 are provided within the power slot 22, spaced apart from each other. When a power source is inserted into the power slot 22, the two transmission members 21 are electrically connected to the positive and negative poles of the power source, respectively. The two ends of the coil 40 are fixedly connected to the two transmission members 21, respectively, so that the power source is electrically connected to the coil 40 through the two transmission members 21, forming a circuit.

[0042] It should be noted that the inner cavity 18 of the valve body 101 is used to accommodate the valve core 30, which moves within the inner cavity 18. The valve core 30 includes an iron core 31 and a connecting rod 32. The iron core 31 is located on the side of the valve body 101 facing the transmission terminal 20, while the valve core 30 is located on the side of the valve body 101 away from the transmission terminal 20. The connecting rod 32 passes through the through hole 13 in the valve body 101 and extends toward the iron core 31. The valve body 101 includes a valve port 11 and an opening 12. The valve port 11 is located at the end away from the valve body 101, and the opening 12 is located on the sidewall of the valve body 101. The valve core 30 can shield the valve port 11, separating the valve port 11 from the opening 12, thereby closing the electrically controlled valve 100.

[0043] When the power is turned on, current flows through coil 40, forming a magnetic field. This magnetic field magnetizes the iron core 31 at one end of the valve core 30, causing the magnetized iron core 31 to move under the influence of the magnetic field. Controlling the direction of the current in coil 40 can control the direction of movement of the iron core 31 within the inner cavity 18. Under the influence of the magnetic field, the iron core 31 moves toward the valve port 11, thereby causing the valve core 30 to move. The end surface of the valve core 30 is larger than the size of the valve port 11, and the valve core 30 can completely cover the valve port 11, separating the valve port 11 from the opening 12, thereby closing the electrically controlled valve 100.

[0044] When the power is off, coil 40 is de-energized, and valve core 30 fails to completely cover valve port 11. Valve port 11 and opening 12 are now connected. Therefore, controlling the position of valve core 30 relative to valve port 11 controls the opening and closing of electronically controlled valve 100, thereby separating or connecting valve port 11 and opening 12. Valve port 11 and opening 12 respectively connect to two relatively independent air chambers within the airbag. In other words, controlling the opening and closing of electronically controlled valve 100 can connect or separate the two relatively independent air chambers.

[0045] During the operation of the air spring, one of the air chambers needs to bear the load, namely the main air chamber, and the other air chamber is the auxiliary air chamber. When the load gradually increases, the volume of the main air chamber decreases, and the gas inside the main air chamber is compressed. When the load gradually decreases, the volume of the main air chamber increases, and the compression rate of the gas inside the main air chamber decreases. When the electric control valve 100 is closed, the main air chamber is separated from the auxiliary air chamber, the volume of the main air chamber is smaller, and the stiffness of the air spring is greater. When the electric control valve 100 is opened, the main air chamber is connected to the auxiliary air chamber, the volume of the main air chamber is larger, and the gas is more easily compressed, making the stiffness of the air spring smaller.

[0046] It is understood that controlling the magnitude of the current passing through the coil 40 can control the electromagnetic force exerted on the iron core 31, thereby controlling the position of the valve core 30 relative to the valve port 11, and thereby changing the size of the flow passage connecting the valve port 11 and the opening 12. By controlling the size of the flow passage connecting the primary and secondary air chambers, the pressure differential during gas flow between the chambers can be changed, and the stiffness of the air spring can also be changed. In this case, the stiffness of the air spring is between the stiffness of the air spring when the electronically controlled valve 100 is fully opened and the stiffness of the air spring when the electronically controlled valve 100 is closed.

[0047] An air spring is an elastic element that must withstand varying loads during operation. This long-term load fluctuation can easily cause the connections between the air spring's internal components to fail. A failed connection between the transmission terminal 20 and the coil assembly 10 would prevent the coil 40 from receiving power, making it impossible to adjust the air spring's stiffness.

[0048] The transmission terminal 20 of the electrically controlled valve 100 of the present application is connected to the valve body 101 via a quick-connect structure 14. The quick-connect structure 14 is simple and easy to install, thereby improving the production efficiency of the electrically controlled valve 100. Furthermore, the transmission terminal 20 and the coil assembly 10 can be quickly disassembled, facilitating component replacement and maintenance.

[0049] It should be noted that the electrically controlled valve 100 of the present application can be used in the aforementioned air springs as a component for separating airbags and adjusting the volume of the main air chamber within the airbags. However, the electrically controlled valve 100 is not limited to use in air springs. It is also applicable to other sealed systems that need to separate or connect enclosed spaces, and it also facilitates the replacement and maintenance of internal components.

[0050] The present application also provides a vehicle comprising the aforementioned electrically controlled valve 100 or the aforementioned air spring for varying the stiffness of the vehicle body suspension. It should be noted that the electrically controlled valve 100 or air spring of the present application can be used in the aforementioned vehicles, as well as in other devices or systems requiring variable spring stiffness. Compared to existing electrically controlled valves or air springs, the electrically controlled valve 100 of the present application is simpler to install, improves the production efficiency of the device or system, and facilitates maintenance and replacement of the electrically controlled valve 100.

[0051] In one embodiment, if Figure 1 As shown, the valve body 101 includes a valve port 11 and an opening 12 , and the valve core 30 can cover the valve port 11 and thus close the electrically controlled valve 100 .

[0052] In another embodiment, the valve ports 11 are located at both ends of the valve body 101 , and the specific positions of the valve ports can be arbitrarily set based on the relative positions of the air chambers that need to be connected.

[0053] In one embodiment, if Figure 1 As shown, the power slot 22 is located on the end surface of the transmission terminal 20 away from the valve body 101. In another embodiment, the power slot 22 can also be located at other positions of the transmission terminal 20. The position of the power slot 22 can be set based on the relative position of the power supply and the transmission terminal 20.

[0054] In one embodiment, if Figure 1 As shown, the electrically controlled valve 100 includes a spring 60 , one end of the spring 60 abuts against the valve core 30 , and the other end abuts against the valve body 101 . The spring 60 serves as an elastic connection between the valve body 101 and the valve core 30 , and is used to drive the valve core 30 to reset.

[0055] As the iron core 31, under the influence of the magnetic field, drives the valve core 30 toward the valve port 11, the distance between the iron valve core 30 and the valve body 101 gradually decreases, compressing the spring 60. When the valve core 30 completely covers the valve port 11, the spring 60 is compressed to its limit. When the coil 40 is de-energized, the valve core 30 is no longer affected by the magnetic field, and the spring 60 drives the valve core 30 away from the valve port 11. The spring 60 returns to its initial position, driving the valve core 30 back to its initial position.

[0056] As will be appreciated, changing the stiffness of spring 60 can also change the stiffness of the air spring. As the iron core 31 moves toward the valve port 11, the valve core 30 is acted upon by both the electromagnetic force and the spring force provided by spring 60, with the electromagnetic force and the spring force acting in opposite directions. As the valve core 30 moves, the spring force gradually increases. When the electromagnetic force and the spring force are equal in magnitude, the valve core 30 is in equilibrium. The valve core 30 moves a certain distance toward the valve port 11 but does not completely block the valve port 11. The connecting channel between the valve port 11 and the opening 12 is now smaller than when the valve core 30 is in its initial position.

[0057] Therefore, changing the stiffness of the spring 60 can change the size of the communication flow channel, thereby changing the pressure difference when the gas flows between the air chambers, and can also change the stiffness of the air spring.

[0058] In one embodiment, if Figure 1 As shown, the valve core 30 includes a connecting rod 32, one end of which is fixedly connected to the iron core 31, and the other end of which passes through the through hole 13 of the valve body 101 and is fixedly connected to the valve core 30. The connecting rod 32 is used to drive the valve core 30 to move along the iron core 31 toward the valve port 11, thereby shielding the valve port 11 and closing the electrically controlled valve 100. The through hole 13 also limits the swing of the valve core 30, ensuring that the valve core 30 can move axially along the through hole 13.

[0059] See also Figure 4 A schematic diagram of the structure of a transmission terminal 20 provided in one embodiment of the present application is shown.

[0060] In one embodiment, if Figure 4 As shown, the quick-connect structure 14 is a plug-in structure, and the transmission terminal 20 is plugged and fixed to the coil assembly 10 along the axial direction of the coil assembly 10. The quick-connect structure 14 can achieve rapid fixation of the transmission terminal 20 and the coil assembly 10.

[0061] In one embodiment, if Figure 4 As shown, the transmission terminal 20 includes a transmission member 21 , and the valve body 101 fixes the end of the transmission member 21 through the quick-connect structure 14 to clamp the transmission terminal 20 .

[0062] In one embodiment, the transmission member 21 includes a bent portion that bends toward the center of the transmission terminal 20, with the transmission member 21 partially housed within the transmission terminal 20. The bent portion of the transmission member 21 facilitates electrical connection between the power supply slot 22 and the coil 40. The bent portion of the transmission member 21, which bends toward the center of the transmission terminal 20, allows the transmission member 21 to be partially located within the transmission terminal 20, protecting the transmission member 21 and preventing other components from contacting the transmission member 21 and affecting its electrical conductivity. Furthermore, the transmission member 21 has a larger contact area with the transmission terminal 20, improving the reliability of the component connection.

[0063] In another embodiment, the end of the transmission member 21 connected to the power source may be located at another position of the transmission terminal 20. The position of the end of the transmission member 21 connected to the power source may be set based on the relative position of the power source and the transmission terminal 20.

[0064] See also Figure 5 and Figure 6 ,in, Figure 5 A partial structural diagram of a coil assembly 10 provided in one embodiment of the present application is shown. Figure 6 A schematic diagram of a quick-connect structure 14 provided in an embodiment of the present application is shown.

[0065] In one embodiment, if Figure 5 and Figure 6 As shown, the quick-connect structure 14 is a plug-in structure, and the quick-connect structure 14 includes a positioning groove 141. The positioning groove 141 is provided at one end of the quick-connect structure 14 facing the transmission terminal 20. The transmission terminal 20 includes a transmission member 21. The transmission member 21 is partially plugged into the positioning groove 141. The coil assembly 10 fixes the end of the transmission member 21 through the positioning groove 141 to clamp the transmission terminal 20.

[0066] In one embodiment, the portion of the transmission member 21 inserted into the positioning groove 141 extends axially along the coil assembly 10 to facilitate insertion and removal between the transmission member 21 and the positioning groove 141, thereby ensuring the installation and disassembly efficiency between the coil assembly 10 and the transmission terminal 20.

[0067] In one embodiment, the coil assembly 10 includes a valve body 101 and a coil 40 . The coil 40 is sleeved on the outer wall of the valve body 101 , and the positioning groove 141 is provided in the valve body 101 .

[0068] In one embodiment, the end of the transmission member 21 fixed to the positioning slot 141 is also used to conduct electricity to the coil 40. The other end of the transmission member 21 extends away from the coil assembly 10 and is used to conduct electricity to the power supply. The transmission member 21 and the coil 40 form a loop, so that the coil 40 is connected to the power supply.

[0069] In one embodiment, the end of the coil 40 is wound around the quick-connect structure 14, so that the coil 40 and the quick-connect structure 14 have a larger contact area, which facilitates the conduction between the coil 40 and the quick-connect structure 14, and then the transmission member 21 inserted into the quick-connect structure 14.

[0070] In another embodiment, the transmission member 21 can be located at the end of the coil assembly 10 facing the transmission terminal 20, and the quick-connect structure 14 can be located at the transmission terminal 20. The transmission member 21 cooperates with the quick-connect structure 14 to similarly securely connect the coil assembly 10 to the transmission terminal 20. The specific positions of the transmission member 21 and the quick-connect structure 14 can be arbitrarily set based on the structures of the coil assembly 10 and the transmission terminal 20.

[0071] In one embodiment, if Figure 5 As shown, the outer wall of the valve body 101 is provided with a coil groove 17, which is used to fix and at least partially accommodate the coil 40. The coil groove 17 surrounds the outer wall of the valve body 101, and the coil 40 is wound in the coil groove 17 on the outer wall of the valve body. The surface of the coil groove 17 facing the transmission member 21 and the surface away from the transmission member 21 can restrain the coil 40, preventing the coil 40 from moving along the axis of the valve body 101 toward the two ends of the valve body 101, causing the coil 40 to fall off. It can also prevent the coil 40 from wearing against other components of the electric control valve 100, avoiding affecting the conduction of the coil 40.

[0072] In one embodiment, the coil slot 17 includes a spiral pattern, and the hand direction and lead angle of the spiral pattern are the same as those of the coil 40. The same hand direction and lead angle allow the coil 40 to fit better within the coil slot 17. Furthermore, the spiral pattern guides the winding of the coil 40, ensuring that each turn of the coil 40 is parallel to each other and that the magnetic field generated by each turn of the coil 40 is in the same direction, thereby increasing the magnitude of the magnetic field generated by the coil 40.

[0073] In one embodiment, multiple coils 40 can be wound around the outer wall of the valve body 101. The coils 40 can have different rotation directions and wire diameters to achieve different magnetic field directions and magnetic field strengths. The rotation directions and wire diameters of the coils 40 can be arbitrarily set based on the direction of movement of the valve core 30 and the desired magnetic field strength.

[0074] In one embodiment, the valve body 101 is provided with a coil positioning groove 16, and the end of the coil 40 is suitable for passing through the coil positioning groove 16 and electrically connecting with the transmission member 21 inserted into the positioning groove 141. The coil positioning groove 16 is used to accommodate and fix part of the coil 40 to protect the coil 40.

[0075] In one embodiment, if Figure 5 As shown, the valve body 101 includes two coil positioning grooves 16, which are recessed into the outer wall of the valve body 101. The two coil positioning grooves 16 are respectively used to fix the ends of the coil 40 of the transmission member 21. The coil positioning grooves 16 are located on the outer wall of the valve body 101 and communicate with the winding position of the coil 40. The ends of the coil 40 can pass through the coil positioning grooves 16 from the winding position of the coil 40 and be fixedly connected to the transmission member 21. The coil positioning grooves 16 can accommodate the ends of the coil 40, preventing the ends of the coil 40 from interfering with other components in the electric control valve 100, thereby affecting the conduction of the coil 40.

[0076] In one embodiment, if Figure 5As shown, the coil 40 has a rotation direction and a rise angle when wound in the coil slot 17, and the coil positioning slot 16 extends along the rotation direction and the rise angle of the coil 40, so that the end of the coil 40 does not need to be bent during the extension process toward the transmission member 21, thereby preventing bending from damaging the coil 40 and improving the service life of the coil 40.

[0077] In one embodiment, the coil assembly 10 includes a limiting step 15, and the positioning groove 141 is provided on the limiting step 15, which can also realize the plug-in fit between the transmission member 21 and the positioning groove 141, thereby realizing the rapid installation and disassembly between the coil assembly 10 and the transmission terminal 20.

[0078] In one embodiment, the transmission terminal 20 is provided with a first limiting groove 23 , and the limiting step 15 or the positioning groove 141 is at least partially located in the first limiting groove 23 to limit the relative rotation of the transmission terminal 20 and the coil assembly 10 .

[0079] In one embodiment, if Figure 2 As shown, the transmission terminal 20 is provided with two first limiting grooves 23. When the transmission member 21 extends into the positioning groove 141, the quick-connect structure 14 also extends into the first limiting groove 23 to limit the rotation of the quick-connect structure 14 relative to the first limiting groove 23. Figure 7 A schematic structural diagram of a magnetic conductive ring 50 provided in one embodiment of the present application is shown.

[0080] In one embodiment, the electrically controlled valve 100 includes a magnetic ring 50 . The magnetic ring 50 is disposed between the coil assembly 10 and the transmission terminal 20 . The magnetic ring 50 is used to increase the magnetic field generated by the coil assembly 10 .

[0081] In one embodiment, if Figure 3 and Figure 7 As shown, the electric control valve 100 includes a magnetic ring 50, which is at least partially embedded in the outer wall of the valve body 101. The magnetic ring 50 is arranged side by side with the coil 40 and is located on the side of the coil 40 facing the transmission terminal 20. The magnetic ring 50 is used to increase the magnetic field generated by the coil 40.

[0082] The magnetic ring 50 includes an inner ring 51, which is larger than the inner cavity 18. When the magnetic ring 50 is embedded in the coil assembly 10, the inner ring 51 is mounted outside the valve core 30. The magnetic ring 50 mounted on the valve core 30 can increase the magnetic field generated by the coil 40 when it is energized. The magnetic ring 50 passes through the inner ring 51 of the magnetic ring 50, enhancing the magnetic field and making it more concentrated, thereby facilitating the control of the movement of the valve core 30 within the inner cavity 18.

[0083] In one embodiment, the magnetic ring 50 includes a second limiting groove 52 , and at least part of the limiting step 15 or at least part of the positioning groove 141 is located in the second limiting groove 52 to limit the relative rotation of the magnetic ring 50 and the coil assembly 10 .

[0084] In one embodiment, if Figure 2 and Figure 7 As shown, the magnetic ring 50 includes two second limiting grooves 52, which are recessed in the outer wall of the magnetic ring 50. The valve body 101 includes a limiting step 15, which is located on the end surface of the valve body facing the transmission terminal 20 and extends toward the transmission terminal 20. When the magnetic ring 50 is installed in the coil assembly 10, the limiting step 15 extends into the second limiting grooves 52, limiting the movement of the magnetic ring 50 relative to the coil assembly 10.

[0085] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0086] It should be understood that the application of this application is not limited to the above examples. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the scope of protection of the claims appended to this application. Those skilled in the art will understand that implementing all or part of the processes of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An electrically controlled valve, characterized in that: include: The coil assembly and the transmission terminal are fixedly connected via a quick-connect structure.

2. The electrically controlled valve according to claim 1, characterized in that: The quick-connect structure is a plug-in structure, and the transmission terminal is plugged in and fixed to the coil assembly along the axial direction of the coil assembly.

3. The electrically controlled valve according to claim 2, characterized in that: The coil component comprises a positioning groove, and the positioning groove is arranged at one end of the coil component facing the transmission terminal. The transmission terminal comprises a transmission member, and the transmission member is partially inserted into the positioning groove.

4. The electrically controlled valve according to claim 3, characterized in that: The portion of the transmission member inserted into the positioning groove extends along the axial direction of the coil assembly.

5. The electrically controlled valve according to claim 3, characterized in that: The coil assembly comprises a valve body and a coil. The coil is sleeved on the outer wall of the valve body, and the positioning groove is arranged on the valve body.

6. The electrically controlled valve according to claim 5, characterized in that: The portion of the transmission member inserted into the positioning groove is also used for conducting with the coil.

7. The electrically controlled valve according to claim 6, characterized in that: The outer wall of the valve body is recessed with a coil groove, and the coil groove is used to fix and at least partially accommodate the coil.

8. The electrically controlled valve according to claim 7, characterized in that: The valve body is provided with a coil positioning groove, and the end of the coil is suitable for passing through the coil positioning groove to be electrically connected with the transmission member inserted in the positioning groove.

9. The electrically controlled valve according to claim 8, characterized in that: The coil has a hand direction and a lift angle when it is wound on the coil slot, and the coil positioning slot extends along the hand direction and the lift angle of the coil.

10. The electrically controlled valve according to claim 3, characterized in that: The coil assembly comprises a limiting step, and the positioning groove is arranged on the limiting step.

11. The electrically controlled valve according to claim 10, characterized in that: The transmission terminal is provided with a first limiting groove, and the limiting step or the positioning groove is at least partially located in the first limiting groove to limit the relative rotation of the transmission terminal and the coil assembly.

12. The electrically controlled valve according to claim 10, characterized in that: The electric control valve comprises a magnetic conductive ring, which is arranged between the coil assembly and the transmission terminal, and is used to increase the magnetic field generated by the coil assembly.

13. The electrically controlled valve according to claim 12, characterized in that: The magnetic conductive ring comprises a second limiting groove, and at least part of the limiting step or at least part of the positioning groove is located in the second limiting groove to limit the relative rotation of the magnetic conductive ring and the coil assembly.

14. An air spring, characterized in that: The air spring comprises an airbag and the electrically controlled valve according to any one of claims 1 to 13, the airbag comprises a main air chamber and a secondary air chamber, and the electrically controlled valve is arranged between the main air chamber and the secondary air chamber.

15. A vehicle, characterized in that: The vehicle comprises the electrically controlled valve according to any one of claims 1 to 13 or the air spring according to claim 14.

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