An electromagnetic control switch electromagnetic thrust direction action structure

Abstract

The present invention discloses an action structure for controlling the thrust direction of an electromagnet of an electromagnetic switch, which comprises a base and a cover plate. An electromagnetic mechanism and an operating mechanism are provided on the cover plate. A contact support passing through the cover plate is movably arranged in the base, and an electromagnetic pressure plate is arranged on the contact support. The feature is that the electromagnetic pressure plate is linked with the electromagnetic mechanism and the operating mechanism and can drive the contact support to move up and down. The action structure for controlling the thrust direction of an electromagnet of an electromagnetic switch provided by the present invention can be linked with the electromagnetic mechanism and the operating mechanism, has a simpler structure, saves more space, has a lower cost, and can ensure the action accuracy of the contact support.

Description

Technical Field

[0001] The present invention relates to the field of low-voltage electrical appliances, and particularly to an electromagnetic actuator control switch electromagnetic thrust direction action structure. Background Art

[0002] Currently, the breaking mechanisms of control and protection switch electrical appliances provided on the market generally include a base and a cover plate. A contact support passing through the cover plate is movably arranged in the base. An electromagnetic pressure plate is arranged on the contact support. The electromagnetic pressure plate realizes swinging through structures such as a coil, a moving iron core, and a static iron core, and then drives the contact support to move up and down. Such a breaking mechanism has a complex structure, occupies a large space, and has a high cost. Moreover, the swinging of the electromagnetic pressure plate driving the contact support to move up and down easily causes burning phenomena, thereby shortening the service life of the contacts in the base and possibly resulting in excessive pressure in the single-side arc extinguishing chamber in the base. Summary of the Invention

[0003] In view of the deficiencies of the background art, the technical problem to be solved by the present invention is to provide an electromagnetic actuator control switch electromagnetic thrust direction action structure that can be linked with an electromagnetic mechanism and an operating mechanism, has a simpler structure, saves more space, has a lower cost, and can ensure the action accuracy of the contact support.

[0004] To this end, the present invention is implemented by the following technical solutions:

[0005] An electromagnetic actuator control switch electromagnetic thrust direction action structure includes a base and a cover plate. An electromagnetic mechanism and an operating mechanism are arranged on the cover plate. A contact support passing through the cover plate is movably arranged in the base. An electromagnetic pressure plate is arranged on the contact support. The feature is that the electromagnetic pressure plate is linked with the electromagnetic mechanism and the operating mechanism and can drive the contact support to move up and down.

[0006] Further, the electromagnetic pressure plate includes a flat plate and a column arranged on the flat plate. The operating mechanism includes a housing and a transmission cam hinged to the housing. The convex block of the transmission cam is aligned with the upper end of the column. The electromagnetic mechanism includes a coil bobbin and a moving iron core and a static iron core arranged on the coil bobbin. An outer shell is sleeved outside the coil bobbin. The static iron core is fixed between the coil bobbin and the outer shell. The moving iron core can move up and down on the coil bobbin. A push rod that can be linked with the moving iron core is hinged to the lower part of the outer shell. A steering push rod that can be linked with the push rod is hinged to one side of the outer shell. The steering push rod is aligned with the upper ends on both sides of the electromagnetic flat plate.

[0007] Further, at least one guiding through hole is arranged on both sides of the flat plate. A groove aligned with the guiding through hole is arranged on the cover plate. A guiding shaft passing through the guiding through hole is arranged in the groove. A return spring is sleeved on the guiding shaft between the flat plate and the cover plate.

[0008] Further, a connecting rod is passed through the moving iron core. Both ends of the connecting rod pass through the push rod and extend out of the housing. A first strip-shaped through hole for the connecting rod to move is provided on the push rod, and a second strip-shaped through hole for the connecting rod to move is provided on the housing. A tension spring is provided between one side of the steering push rod in contact with the push rod and the housing on the other side.

[0009] Further, a knocking column is provided on the outer side of the steering push rod, and the included angle formed by the central axis of the knocking column and the flat plate is 60 - 120°.

[0010] After adopting the above technical solution, the convex block of the transmission cam of the operating mechanism is aligned with the upper end of the column. When the equipment is short-circuited, the transmission cam of the operating mechanism rotates clockwise to push the electromagnetic pressure plate and the contact support downward; the steering push rod on the electromagnetic mechanism is aligned with the upper ends on both sides of the flat plate. When the equipment fails or is manually tripped, the electromagnetic mechanism disconnects, causing the steering push rod to rotate counterclockwise to push the electromagnetic pressure plate and the contact support downward. The structure is simpler, more space-saving, and has lower costs; moreover, the setting of the guide shaft, guide column, and guide through hole can ensure the perpendicularity of the electromagnetic pressure plate during up and down movement, further enhancing the action accuracy of the electromagnetic pressure plate and the contact support, effectively preventing the contacts from burning and thus shortening the service life of the contacts in the base, and also effectively preventing excessive pressure in the single-side arc extinguishing chamber in the base; in addition, the included angle formed by the central axis of the knocking column on the outer side of the steering push rod and the flat plate is 60 - 120°. The smaller the included angle range, the smaller the swing amplitude of the pressure frame, the smaller the force loss, and the better the force transmission efficiency acting on the electromagnetic pressure plate, thereby reducing the energy consumption of the electromagnetic mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention has the following drawings:

[0012] Figure 1 is a schematic structural diagram of the present invention;

[0013] Figure 2 is Figure 1 a schematic structural diagram of removing the housing of the operating mechanism and the outer shell of the electromagnetic mechanism;

[0014] Figure 3 is a three-dimensional structural diagram of the cover plate, electromagnetic pressure plate, and contact support in the present invention;

[0015] Figure 4 is a schematic structural diagram of the steering push rod and the electromagnetic pressure plate not in contact (an included angle formed by the central axis of the knocking column and the flat plate) in the present invention;

[0016] Figure 5 is a schematic structural diagram of the steering push rod driving the electromagnetic pressure plate to move downward (another included angle formed by the central axis of the knocking column and the flat plate) in the present invention.

[0017] Figure numerals: 1. base; 2. cover plate; 3. electromagnetic mechanism; 4. operating mechanism; 5. contact support; 6. electromagnetic pressure plate; 7. flat plate; 8. column; 9. shell; 10. transfer cam; 11. coil frame; 12. moving iron core; 13. static iron core; 14. shell; 15. push rod; 16. steering push rod; 17. guide through hole; 18. groove; 19. guide shaft; 20. reset spring; 21. connecting rod; 22. first strip through hole; 23. second strip through hole; 24. tension spring; 25. knock column. DETAILED DESCRIPTION

[0018] Referring to the above-mentioned drawings, an electromagnet-controlled switch electromagnet thrust direction action structure provided by the present invention includes a base 1 and a cover plate 2, the cover plate 2 is provided with an electromagnetic mechanism 3 and an operating mechanism 4, a contact support 5 that passes through the cover plate 2 is movably provided in the base 1, and an electromagnetic pressure plate 6 is provided on the contact support 5, wherein the electromagnetic pressure plate 6 is linked with the electromagnetic mechanism 3 and the operating mechanism 4 to drive the contact support 5 to move up and down, the electromagnetic pressure plate 6 includes a flat plate 7 and a column 8 provided on the flat plate 7, the operating mechanism 4 includes a shell 9 and a transfer cam 10 hinged on the shell 9, the convex block of the transfer cam 10 is aligned with the upper end of the column 8, the electromagnetic mechanism 3 includes a coil skeleton 11 and a moving iron core 12 and a static iron core 13 provided on the coil skeleton 11, the coil skeleton 11 is provided with a shell 14 on the outer sleeve, the static iron core 13 is fixed between the coil skeleton 11 and the shell 14, the moving iron core 12 can move up and down on the coil skeleton 11, and the lower part of the shell 14 is hinged A push rod 15 can be linked with the moving iron core 12, and a steering push rod 16 that can be linked with the push rod 15 is hinged on one side of the housing 14. The steering push rod 16 is aligned with the upper ends of both sides of the electromagnetic plate 7. Both sides of the plate 7 are provided with at least one guide through hole 17. The cover plate 2 is provided with a groove 18 aligned with the guide through hole 17. A guide shaft 19 passing through the guide through hole 17 is provided in the groove 18. A return spring 20 is sleeved on the guide shaft 19 between the plate 7 and the cover plate 2. A connecting rod 21 is penetrated, and both ends of the connecting rod 21 pass through the push rod 15 and pass out of the shell 14. The push rod 15 is provided with a first strip through hole 22 for accommodating the movement of the connecting rod 21, and the shell 14 is provided with a second strip through hole 23 for accommodating the movement of the connecting rod 21. One side of the steering push rod 16 is in contact with the push rod, and a tension spring 24 is provided between the other side and the shell 14. A knocking column 25 is provided on the outer side of the steering push rod 16, and the angle formed by the central axis of the knocking column 25 and the flat plate 7 is 60-120°.

[0019] In this embodiment, the bump of the transfer cam 10 of the operating mechanism 4 is aligned with the upper end of the column 8. When the equipment is short-circuited, the transfer cam 10 of the operating mechanism 4 rotates clockwise to push the electromagnetic pressure plate 6 and the contact support 5 downward; the steering push rod 16 on the electromagnetic mechanism 3 is aligned with the upper ends on both sides of the flat plate 7. When the equipment fails or is manually tripped, the electromagnetic mechanism 3 disconnects, causing the steering push rod 16 to rotate counterclockwise to push the electromagnetic pressure plate 6 and the contact support 5 downward. The structure is simpler, more space-saving, and lower in cost; moreover, the setting of the guide shaft 19, the guide post, and the guide through hole 17 can ensure the verticality of the electromagnetic pressure plate 6 during the up and down movement, further enhancing the action accuracy of the electromagnetic pressure plate 6 and the contact support 5, effectively preventing the contacts from being burned and thus shortening the service life of the contacts in the base 1, and effectively preventing the pressure in the unilateral arc extinguishing chamber in the base 1 from being too high; in addition, the included angle formed by the central axis of the knocking post 25 on the outer side of the steering push rod 16 and the flat plate 7 is 60-120°. The smaller the included angle range, the smaller the swing amplitude of the pressure frame, the smaller the force loss, and the better the force transfer efficiency acting on the electromagnetic pressure plate 6, thereby reducing the energy consumption of the electromagnetic mechanism 3.

[0020] The foregoing are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electromagnetic control switch electromagnetic thrust direction action structure, comprising a base and a cover plate. An electromagnetic mechanism and an operating mechanism are provided on the cover plate. A contact support passing through the cover plate is movably provided in the base, and an electromagnetic pressure plate is provided on the contact support. The characteristics are as follows: The electromagnetic pressure plate is linked with the electromagnetic mechanism and the operating mechanism to drive the contact support to move up and down. The electromagnetic pressure plate includes a plate and a column arranged on the plate. The operating mechanism includes a shell and a transfer cam hinged on the shell. The convex block of the transfer cam is aligned with the upper end of the column. The electromagnetic mechanism includes a coil frame and a moving iron core and a static iron core arranged on the coil frame. The coil frame is outer-circuited with a shell. The static iron core is fixed between the coil frame and the shell. The moving iron core can move up and down on the coil frame. The lower part of the shell is hinged with a push rod that can be linked with the moving iron core. One side of the shell is hinged with a A steering push rod linked to the push rod, the steering push rod is aligned with the upper ends of both sides of the electromagnetic plate, at least one guide through hole is provided on both sides of the plate, a groove aligned with the guide through hole is provided on the cover plate, a guide shaft passing through the guide through hole is provided in the groove, a return spring is sleeved on the guide shaft between the plate and the cover plate, a connecting rod is passed through the moving iron core, both ends of the connecting rod pass through the push rod and pass out of the outer shell, a first strip through hole accommodating the movement of the connecting rod is provided on the push rod, a second strip through hole accommodating the movement of the connecting rod is provided on the outer shell, one side of the steering push rod is in contact with the push rod, and a tension spring is provided between the other side and the outer shell.

2. The action structure of the electromagnetic solenoid thrust direction in the electromagnetic solenoid control switch according to claim 1, characterized in that: A knocking column is arranged on the outer side of the steering push rod, and the angle formed by the central axis of the knocking column and the flat plate is 60-120 degrees.

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