Anti-separation magnetic flux converter

Abstract

The utility model provides an anti-separation magnetic flux converter. The anti-separation magnetic flux converter comprises a magnetic flux coil, a permanent magnet, a shell, a coil support, a limiting assembly and a protection assembly. The magnetic flux coil is fixed around the coil support and arranged in the shell. The permanent magnet is located in the center of the coil support and distributed in the vertical direction, and one end extends out of the coil support. The limiting assembly is located above the permanent magnet, fixedly connected with the shell and meanwhile abuts against the permanent magnet. The protection assembly is located in the coil support and makes contact with the permanent magnet. According to the anti-separation magnetic flux converter provided by the utility model, the stroke range of the permanent magnet can be effectively pressed through the fixing plate and the compression spring, the permanent magnet is prevented from being in rigid contact with the compression plate through the protection spring, impact on the compression plate when the permanent magnet moves is reduced, damage to the permanent magnet is reduced, and the service life of the permanent magnet is prolonged. And the stroke gasket can guide the movement of the permanent magnet and can prevent the permanent magnet from directly contacting with the coil bracket, so that the service life of the permanent magnet is prolonged.

Description

Technical Field

[0001] The utility model relates to an anti - detachment flux converter. Background Art

[0002] Nowadays, more and more switches adopt flux converters, which use the change of current to realize the change of magnetic field, and then realize the use of the converter. Such a structure can effectively improve the use accuracy of the converter and reduce the error of mechanical mechanisms, and is widely used in various products.

[0003] However, since the flux converter realizes its function through the magnetic force between the coil and the permanent magnet, different forces will be generated during the use process due to the change of magnetic force, and different strokes will be generated on the permanent magnet. The traditional structure resists the generated magnetic force through the connecting contacts. Since the contacts are point - to - point connections, once the position deviates, misalignment will occur, and the permanent magnet will be deformed due to the force. Because it is at the center of the flux coil, once it deflects, it may get stuck inside the converter and cannot be reset, affecting the use of the entire device.

[0004] The existing structure can only limit the stroke of the permanent magnet through the central position of the flux coil, but this will cause contact between the permanent magnet and the coil holder, and wear on the permanent magnet will occur during long - term use, affecting its service life. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: to provide an anti - detachment flux converter, aiming to improve the connection method between the flux coil and the permanent magnet, limit it on the premise of minimizing the damage to the permanent magnet as much as possible, and improve the service life of the converter.

[0006] To solve the above - mentioned technical problem, the technical solution of the utility model is: an anti - detachment flux converter, comprising a flux coil, a permanent magnet, a housing, a coil holder, a limiting component and a protection component; the flux coil is fixed around the coil holder and arranged inside the housing; the permanent magnet is located at the center of the coil holder, distributed along the vertical direction, and one end extends out of the coil holder; the limiting component is located above the permanent magnet, fixedly connected to the housing and in contact with the permanent magnet at the same time; the protection component is located inside the coil holder and in contact with the permanent magnet;

[0007] The limiting assembly comprises a fixing plate, a compression plate, a limiting spring and a protection spring; the fixing plate is located at the upper end of the permanent magnet, and the permanent magnet passes through the fixing plate; the compression plate is located above the permanent magnet and conflicts with the permanent magnet; the compression plate is fixedly connected to the fixing plate; the limiting spring is located outside the permanent magnet, one end of which is connected to the fixing plate, and the other end is connected to the outer shell; the protection spring is located on the outer circle of the permanent magnet, one end of which is connected to the permanent magnet, and the other end conflicts with the fixing plate.

[0008] Furthermore, the compression plate passes through the fixing plate, extends downward, and cooperates with the housing to provide travel guidance for the permanent magnet.

[0009] Furthermore, a boss is provided on the permanent magnet, and the boss is located between the permanent magnet and the shell, and carries the protection spring.

[0010] Furthermore, a limiting groove is provided at the upper end of the permanent magnet, and the limiting groove is recessed on the outer circle of the permanent magnet and cooperates with the compression plate to limit the moving position of the permanent magnet.

[0011] Furthermore, the shell is provided with a cover body, the center of the cover body passes through to provide a moving space for the permanent magnet, the cover body is provided with a center platform, the center platform protrudes upward to provide a shape guide for the permanent magnet, and the limit spring is arranged around the center platform.

[0012] Furthermore, the protection component includes a bottom pad and a travel pad; the bottom pad is located at the bottom of the permanent magnet, cooperates with the coil bracket, and carries the permanent magnet; the travel pad is located between the permanent magnet and the coil bracket, and is used to alleviate the friction when the permanent magnet moves.

[0013] Furthermore, a positioning platform is provided in the center hole of the coil bracket, and the positioning platform extends toward the center and is located above the travel gasket. When the travel gasket moves following the permanent magnet, the positioning platform limits the movement of the travel gasket to prevent it from detaching following the permanent magnet.

[0014] Furthermore, a fixing platform is provided on the coil bracket, and the fixing platform is located below the coil bracket, extends downward along the bottom of the coil bracket, and surrounds the outside of the protection component. The position of the coil bracket inside the shell is determined by the protection component.

[0015] Compared with the prior art, a magnetic flux converter with anti - detachment provided by the utility model can effectively suppress the stroke range of the permanent magnet through the fixing plate and the compression spring, and prevent the rigid contact between the permanent magnet and the compression plate through the protection spring, reducing the impact on the compression plate when the permanent magnet moves, thereby reducing the damage received by the permanent magnet. The stroke gasket can not only provide guidance for the movement of the permanent magnet, but also avoid the direct contact between the permanent magnet and the coil bracket, improving the service life of the permanent magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The cross - sectional view of the utility model is shown.

[0017] Wherein: 1. magnetic flux coil, 2. permanent magnet, 3. housing, 4. coil bracket, 5. limiting component, 6. protection component, 7. fixing plate, 8. compression plate, 9. limiting spring, 10. protection spring, 11. boss, 12. limiting groove, 13. cover body, 14. center platform, 15. bottom cushion block, 16. stroke gasket, 17. positioning platform, 18. fixing platform. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] As shown in the figure, a magnetic flux converter with anti - detachment includes a magnetic flux coil 1, a permanent magnet 2, a housing 3, a coil bracket 4, a limiting component 5 and a protection component 6; the magnetic flux coil 1 is fixed around the coil bracket 4 and arranged inside the housing 3; the permanent magnet 2 is located at the center of the coil bracket 4, distributed in the vertical direction, and one end extends out of the coil bracket 4; the limiting component 5 is located above the permanent magnet 2, fixedly connected to the housing 3 and in contact with the permanent magnet 2 at the same time; the protection component 6 is located inside the coil bracket 4 and in contact with the permanent magnet 2.

[0019] The limiting component 5 includes a fixing plate 7, a compression plate 8, a limiting spring 9 and a protection spring 10; the fixing plate 7 is located at the upper end of the permanent magnet 2, and the permanent magnet 2 passes through the fixing plate 7; the compression plate 8 is located above the permanent magnet 2 and in contact with the permanent magnet 2; the compression plate 8 is fixedly connected to the fixing plate 7; the limiting spring 9 is located outside the permanent magnet 2, one end is connected to the fixing plate 7, and the other end is connected to the housing 3; the protection spring 10 is located on the outer circle of the permanent magnet 2, one end is connected to the permanent magnet 2, and the other end is in contact with the fixing plate 7.

[0020] Furthermore, the compression plate 8 passes through the fixing plate 7 and extends downward to cooperate with the housing 3 to provide stroke guidance for the permanent magnet 2.

[0021] Further, a boss 11 is provided on the permanent magnet 2. The boss 11 is located at the position where the permanent magnet meets the outer shell, and bears the protection spring.

[0022] Further, a limiting groove 12 is also provided at the upper end of the permanent magnet 2. The limiting groove 12 is recessed on the outer circle of the permanent magnet 2 and cooperates with the compression plate 8 to limit the moving position of the permanent magnet 2.

[0023] Further, a cover 13 is provided on the outer shell 3. The center of the cover 13 is penetrated to provide a moving space for the permanent magnet 2. A center platform 14 is provided on the cover 13, and the center platform 14 protrudes upward to provide a stroke guide for the permanent magnet 2. The limiting spring 9 is arranged around the center platform 14.

[0024] Further, the protection assembly 6 includes a bottom cushion block 15 and a stroke gasket 16; the bottom cushion block 15 is located at the bottom of the permanent magnet 2 and cooperates with the coil bracket 4 to bear the permanent magnet 2; the stroke gasket 16 is located between the permanent magnet 2 and the coil bracket 4 and is used to relieve the friction when the permanent magnet 2 moves.

[0025] Further, a positioning platform 17 is provided in the central hole of the coil bracket 4. The positioning platform 17 extends towards the center and is located above the stroke gasket 16. When the stroke gasket 16 moves with the permanent magnet 2, the positioning platform 17 restricts the movement of the stroke gasket 16 to prevent it from separating from the permanent magnet 2.

[0026] Further, a fixing platform 18 is provided on the coil bracket 4. The fixing platform 18 is located below the coil bracket 4 and extends downward along the bottom of the coil bracket 4, surrounding the outside of the protection assembly 6, and determines the position of the coil bracket 4 inside the outer shell 3 through the protection assembly 6.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than restrictive technical solutions. Those of ordinary skill in the art should understand that any modifications or equivalent replacements made to the technical solutions of the present invention without departing from the purpose and scope of the present technical solution shall be covered by the scope of the claims of the present invention.

Claims

1. An anti-flux converter, characterized in that: It includes a flux coil, a permanent magnet, a shell, a coil support, a limit assembly and a protection assembly; the flux coil is fixed around the coil support and arranged inside the shell; the permanent magnet is located at the center of the coil support, distributed in the vertical direction, and one end extends out of the coil support; the limit assembly is located above the permanent magnet, fixedly connected to the shell, and at the same time conflicts with the permanent magnet; the protection assembly is located inside the coil support and contacts with the permanent magnet; The limiting assembly comprises a fixing plate, a compression plate, a limiting spring and a protection spring; the fixing plate is located at the upper end of the permanent magnet, and the permanent magnet passes through the fixing plate; the compression plate is located above the permanent magnet and conflicts with the permanent magnet; the compression plate is fixedly connected to the fixing plate; the limiting spring is located outside the permanent magnet, one end of which is connected to the fixing plate, and the other end is connected to the outer shell; the protection spring is located on the outer circle of the permanent magnet, one end of which is connected to the permanent magnet, and the other end conflicts with the fixing plate.

2. The anti-de-magnetic flux converter according to claim 1, characterized in that: The compression plate passes through the fixing plate, extends downward, and cooperates with the shell to provide travel guidance for the permanent magnet.

3. The anti-de-magnetic flux converter according to claim 1, characterized in that: The permanent magnet is provided with a boss, which is located between the permanent magnet and the shell and carries the protection spring.

4. The anti-flux converter according to claim 3, characterized in that: The upper end of the permanent magnet is also provided with a limiting groove, which is recessed on the outer circle of the permanent magnet and cooperates with the compression plate to limit the moving position of the permanent magnet.

5. The anti-de-magnetic flux converter according to claim 1, characterized in that: The shell is provided with a cover body, the center of the cover body passes through to provide a moving space for the permanent magnet, the cover body is provided with a center platform, the center platform protrudes upward to provide a shape guide for the permanent magnet, and the limit spring is arranged around the center platform.

6. The anti-de-magnetic flux converter according to claim 1, characterized in that: The protection component includes a bottom pad and a travel pad; the bottom pad is located at the bottom of the permanent magnet, cooperates with the coil bracket, and carries the permanent magnet; the travel pad is located between the permanent magnet and the coil bracket, and is used to alleviate the friction when the permanent magnet moves.

7. The anti-de-magnetic flux converter according to claim 6, characterized in that: A positioning platform is arranged in the center hole of the coil support, and the positioning platform extends toward the center and is located above the travel gasket. When the travel gasket moves following the permanent magnet, the positioning platform limits the movement of the travel gasket to prevent it from detaching following the permanent magnet.

8. The anti-de-magnetic flux converter according to claim 7, characterized in that: A fixing platform is provided on the coil support, and the fixing platform is located below the coil support, extends downward along the bottom of the coil support, and surrounds the outside of the protection component. The position of the coil support inside the shell is determined by the protection component.

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