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CN-224217370-U - Electromagnetic type power supply total switch with stable contact

CN224217370UCN 224217370 UCN224217370 UCN 224217370UCN-224217370-U

Abstract

The utility model discloses an electromagnetic power supply master switch with stable contact, which comprises a switch shell, wherein a fixed iron core coil assembly, a pole plate and a movable iron core assembly are arranged in the switch shell, the movable iron core assembly can axially move in the fixed iron core coil assembly, a static contact plate connected with the fixed iron core coil assembly is arranged in the switch shell, a switch contact plate is fixed at the front end of the movable iron core assembly, the movable iron core assembly is contacted or disconnected through axial movement, a reset spring axially arranged at the tail end of the movable iron core assembly is arranged in the switch shell, a wiring terminal is arranged outside the switch shell, the switch contact plate is a circular contact plate, the switch contact plate can rotate on a movable iron core, the switch contact plate is designed into a circular contact plate, the switch contact plate can still stably contact after the position of the switch contact plate and the static contact plate are rotationally changed, different contact surfaces can still be stably contacted after the switch contact plate rotates, the wear of a single contact point is reduced, and the service life is prolonged.

Inventors

  • ZHANG YANBIN
  • SHEN WENJIE

Assignees

  • 嘉善求新精密机电制造有限公司

Dates

Publication Date
20260508
Application Date
20250415

Claims (8)

  1. 1. The electromagnetic type power supply main switch with stable contact comprises a switch shell (1), and is characterized in that a fixed iron core coil assembly (2), a pole plate (3) and a movable iron core assembly are arranged in the switch shell (1), the movable iron core assembly can axially move in the fixed iron core coil assembly (2), a static contact plate (4) connected with the fixed iron core coil assembly (2) is arranged in the switch shell (1), a switch contact disc (5) is fixed at the front end of the movable iron core assembly, the movable iron core assembly can realize the contact or disconnection of the switch contact disc (5) and the static contact plate (4) through axial movement, a reset spring (6) axially arranged at the tail end of the movable iron core assembly is arranged in the switch shell (1), and a wiring terminal (7) is arranged outside the switch shell (1).
  2. 2. The electromagnetic power supply main switch with stable contact according to claim 1, wherein the movable iron core assembly comprises a movable iron core (8), an insulating table (9), an insulating gasket (10), a node spring (11) and a basin-shaped check ring (12), the switch contact disc (5) is clamped at the head end of the movable iron core (8) through the insulating table (9) and the insulating gasket (10), the basin-shaped check ring (12) is further fixed at the head end of the movable iron core (8), and the node spring (11) is arranged between the basin-shaped check ring (12) and the insulating gasket (10).
  3. 3. A contact-stable electromagnetic mains switch according to claim 2, characterized in that the switch contact plate (5) is a circular contact plate.
  4. 4. A contact-stable electromagnetic mains switch according to claim 3, characterized in that the switch contact disc (5) is rotatable on the plunger (8).
  5. 5. The electromagnetic power master switch with stable contact according to claim 4, wherein a plurality of strip-shaped ribs (13) are arranged on the bottom surface of the switch contact plate (5), and the strip-shaped ribs (13) protrude out of the bottom surface of the switch contact plate (5).
  6. 6. A contact-stable electromagnetic mains switch according to claim 5, characterized in that a plurality of said bar-shaped ribs (13) are equally arranged around the bottom surface of the switch contact (5).
  7. 7. A contact-stable electromagnetic mains switch according to claim 6, characterized in that the angle between adjacent strip-shaped ribs (13) is 30 °.
  8. 8. The electromagnetic power supply main switch with stable contact according to claim 6, wherein the top surface of the switch contact plate (5) is provided with a strip-shaped groove (14) corresponding to the strip-shaped convex rib (13).

Description

Electromagnetic type power supply total switch with stable contact Technical Field The utility model belongs to the technical field of automobile power supply main switches, and particularly relates to an electromagnetic power supply main switch with stable contact. Background The working principle of the ‌ electromagnetic type power supply main switch of the automobile is to control the switch of the power supply based on the attractive force of the electromagnet, specifically, when the power supply main switch is in an off state, the coil of the electromagnet is not electrified, so that a magnetic field is not generated, and when the power supply needs to be switched on, the magnet core of the electromagnet is attracted to one side of the magnetic field through operating the switch, so that the power supply main switch is switched on, and the power supply is switched on. In contrast, when the power supply needs to be cut off, the switch is operated again to stop the power supply to the coil of the electromagnet, the magnetic field disappears, the magnet core loses magnetism, the power supply main switch is disconnected, and the power supply is cut off. The electromagnetic power supply general switch for the automobile on the market is characterized in that two contacts are welded between a movable contact plate and a static contact plate, then the positions of the contacts are fixed, namely, the contacts are always in contact with the positions of the two points to realize power supply connection, firstly, the two points are in contact with each other and are easy to wear after being frequently used, so that the service life is short, and meanwhile, the movable contact plate needs to be positioned in an anti-rotation way when moving along with an axial direction of a movable iron core, but after being frequently used, once the positioning part loosens or the worn movable contact plate rotates, the two contacts are easy to be in contact with each other, so that the contact stability is poor. Disclosure of utility model The utility model provides an electromagnetic power supply total switch with stable contact, which is characterized in that a switch contact disc is designed as a round contact plate, and can still stably contact after the positions of the switch contact disc and a static contact plate are rotationally changed. The electromagnetic type power supply main switch comprises a switch shell, wherein a fixed iron core coil assembly, a pole plate and a movable iron core assembly are arranged in the switch shell, the movable iron core assembly can axially move in the fixed iron core coil assembly, a static contact plate connected with the fixed iron core coil assembly is arranged in the switch shell, a switch contact disc is fixed at the front end of the movable iron core assembly, the movable iron core assembly can realize contact or disconnection between the switch contact disc and the static contact plate through axial movement, a reset spring axially arranged at the tail end of the movable iron core assembly is arranged in the switch shell, and a wiring terminal is arranged outside the switch shell. Preferably, the movable iron core assembly comprises a movable iron core, an insulating table, an insulating gasket, a node spring and a basin-shaped check ring, wherein the switch contact disc is clamped at the head end of the movable iron core through the insulating table and the insulating gasket, the basin-shaped check ring is fixed at the head end of the movable iron core, and the node spring is arranged between the basin-shaped check ring and the insulating gasket. Preferably, the switch contact plate is a circular contact plate. Preferably, the switch contact disc can rotate on the movable iron core. Preferably, the bottom surface of the switch touch disc is provided with a plurality of strip-shaped convex ribs, and the strip-shaped convex ribs protrude out of the bottom surface of the switch touch disc. Preferably, a plurality of the strip-shaped ribs are equally arranged around the bottom surface of the switch touch panel. Preferably, the included angle between the adjacent strip-shaped ribs is 30 degrees. Preferably, the top surface of the switch contact disc is provided with a strip-shaped groove corresponding to the strip-shaped convex rib. Compared with the prior art, the utility model has the beneficial effects that: 1. The switch contact disc is designed as a round contact plate, so that the switch contact disc can still stably contact with the static contact plate after the position of the switch contact disc is rotationally changed. 2. The design of switch contact disc rotation, and still can stable contact after rotatory, realize different contact surfaces, reduce the wearing and tearing of single contact point, can improve life. 3. Through the design of a plurality of bar protruding muscle for have the space between the contact surface, do benefit to the circulation of air heat diss