CN113658826A - Electromagnetic switch assembly of starter - Google Patents

Abstract

The invention discloses an electromagnetic switch assembly of a starter, belonging to the field of automobile accessories, comprising a shell and a shell cover, wherein the surface of the shell is equidistantly provided with heat dissipation holes, the inner wall of the shell is fixedly provided with an electromagnetic coil, the inner wall of the electromagnetic coil is slidably provided with a movable iron core, the surface of the movable iron core is slidably sleeved with a movable iron core reset spring, the surface of the movable iron core is fixedly provided with a movable contact, the inner wall of the shell is slidably provided with a guide rod, the movable contact uses tellurium copper with super-strong arc extinguishing energy, a semicircular arc extinguishing groove is additionally arranged, the surface treatment uses cadmium plating, the static contact uses tellurium copper with super-strong arc extinguishing energy, a trapezoidal arc extinguishing groove is additionally arranged, thereby the burn on the surface of the contact is greatly reduced, the high-speed closing or high-speed separation of the movable contact and the static contact can be accelerated through the high-speed linear bearings additionally arranged on the movable iron core and the static iron core, the electromagnetic coil framework is changed into a discrete framework structure, the effective gap part of the magnetic field uses DMD insulating paper to improve the magnetic force.

Description

Electromagnetic switch assembly of starter

Technical Field

The invention relates to the field of automobile accessories, in particular to an electromagnetic switch assembly of a starter.

Background

As is well known, the existing starter of an automobile is generally a speed reduction motor, and the starter works and is shut down by switching on or off a power supply loop through an electromagnetic switch.

However, most starter electromagnetic switch assemblies also have certain defect, and the movable contact, the stationary contact material originally designs and uses the TU2 material, and long-time use can cause the burn problem of contact, and the skeleton of solenoid uses PA66 reinforcing nylon injection moulding, can cause the weakening problem of magnetic force.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide an electromagnetic switch assembly of a starter, which uses tellurium copper with super-strong arc extinguishing energy through a movable contact, additionally adds a semicircular arc extinguishing groove, uses cadmium plating for surface treatment, uses tellurium copper with super-strong arc extinguishing energy through a static contact, and adds a trapezoidal arc extinguishing groove, thereby greatly reducing the burn on the surface of the contact.

In order to solve the above problems, the present invention adopts the following technical solutions.

A starter electromagnetic switch assembly comprises a shell and a shell cover, wherein radiating holes are formed in the surface of the shell at equal intervals, an electromagnetic coil is fixedly installed on the inner wall of the shell, a movable iron core is installed on the inner wall of the electromagnetic coil in a sliding mode, a movable iron core reset spring is sleeved on the surface of the movable iron core in a sliding mode, a movable contact is installed on the surface of the movable iron core, a guide rod is installed on the inner wall of the shell in a sliding mode, a lining plastic seat is installed on the surface of the guide rod in a fixed mode, a rubber ring is installed on the surface of the guide rod in a fixed mode, a contact plate is fixedly installed between the lining plastic seat and the rubber ring, a guide rod reset spring is installed on the surface of the rubber ring in a fixed mode, the guide rod reset spring is fixedly connected with the shell cover, a static iron core is symmetrically and fixedly installed on the inner wall of the shell cover, the end face of the static iron core is in a saw-toothed shape, and a static contact is fixedly installed on the surface of the static iron core, it uses the superstrong tellurium copper of arc extinguishing ability through the movable contact, increase semi-circular arc-extinguishing groove in addition, and surface treatment uses the cadmium-plating, the stationary contact uses the superstrong tellurium copper of arc extinguishing ability, and increase trapezoidal arc-extinguishing groove, thereby the contact surface's that significantly reduces burns, through moving the iron core, the high-speed linear bearing that the stationary core increases, can accelerate the movable contact, the high-speed closure or the high-speed separation of stationary contact, through changing the solenoid skeleton into discrete skeleton texture, the effective clearance part in magnetic field uses the DMD insulated paper, in order to improve magnetic field strength.

Further, a first high-speed linear bearing is fixedly mounted on the surface of the shell.

Furthermore, the first high-speed linear bearing is in sliding connection with the movable contact, so that the movable contact and the fixed contact can be quickly closed or separated at a high speed under the action of the first high-speed linear bearing.

Furthermore, a contact board buffer spring is fixedly arranged on the surface of the lining plastic seat.

Furthermore, the contact plate buffer spring and the guide rod are in a sliding sleeved state, so that the contact plate is conveniently and effectively buffered under the action of the contact plate buffer spring.

Furthermore, a second high-speed bearing is symmetrically and fixedly arranged on the surface of the shell cover.

Furthermore, the second high-speed bearing is in sliding connection with the fixed contact, so that the movable contact and the fixed contact can be quickly closed or separated at a high speed under the action of the second high-speed linear bearing.

Furthermore, a binding post is fixedly arranged on the surface of the shell cover.

Furthermore, the surface of the binding post is provided with a wiring groove, so that effective installation of the cable is ensured under the action of the binding post.

Furthermore, the wiring slot is of a hollow round structure.

Compared with the prior art, the invention has the advantages that:

(1) this scheme uses the superstrong tellurium copper of arc extinguishing ability through the movable contact, increase semi-circular arc-extinguishing groove in addition, and surface treatment uses the cadmium plating, the stationary contact uses the superstrong tellurium copper of arc extinguishing ability, and increase trapezoidal arc-extinguishing groove, thereby the burn on the contact surface that significantly reduces, through moving the iron core, the high-speed linear bearing of quiet iron core increase, can accelerate the movable contact, the high-speed closure or the high-speed separation of stationary contact, through changing the solenoid skeleton into discrete skeleton texture, the effective clearance part in magnetic field uses the DMD insulated paper, in order to improve magnetic field force.

(2) The first high-speed linear bearing is fixedly arranged on the surface of the shell and is in sliding connection with the movable contact, so that the movable contact and the fixed contact can be quickly closed or separated at a high speed under the action of the first high-speed linear bearing.

(3) The surface of the lining plastic seat is fixedly provided with a contact plate buffer spring, and the contact plate buffer spring and the guide rod are in a sliding sleeved state, so that the contact plate is conveniently and effectively buffered under the action of the contact plate buffer spring.

(4) And the surface of the shell cover is symmetrically and fixedly provided with a second high-speed bearing, and the second high-speed bearing is in sliding connection with the fixed contact, so that the movable contact and the fixed contact can be accelerated to be closed at a high speed or separated at a high speed under the action of the second high-speed linear bearing.

(5) The fixed surface of cap installs the terminal, and the surface of terminal is equipped with the wiring groove, is convenient for under the effect of terminal, guarantees the effective installation of cable.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the right view structure of the present invention;

fig. 3 is a left side view structural diagram of the present invention.

The reference numbers in the figures illustrate:

the device comprises a shell 1, a shell cover 2, heat dissipation holes 3, an electromagnetic coil 4, a movable iron core 5, a movable iron core reset spring 6, a movable contact 7, a first high-speed linear bearing 8, a guide rod 9, a lining plastic seat 10, a rubber ring 11, a contact plate 12, a contact plate buffer spring 13, a guide rod reset spring 14, a static iron core 15, a static contact 16, a second high-speed linear bearing 17 and a wiring terminal 18.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Referring to fig. 1-3, an electromagnetic switch assembly of a starter comprises a housing 1 and a housing cover 2, referring to fig. 1-3, heat dissipation holes 3 are equidistantly formed in the surface of the housing 1, an electromagnetic coil 4 is fixedly mounted on the inner wall of the housing 1, a movable iron core 5 is slidably mounted on the inner wall of the electromagnetic coil 4, a movable iron core reset spring 6 is slidably sleeved on the surface of the movable iron core 5, a movable contact 7 is fixedly mounted on the surface of the movable iron core 5, a first high-speed linear bearing 8 is fixedly mounted on the surface of the housing 1, the first high-speed linear bearing 8 is slidably connected with the movable contact 7, so that the movable contact 7 and a stationary contact 16 can be quickly closed or separated at a high speed under the action of the first high-speed linear bearing 8, a guide rod 9 is slidably mounted on the inner wall of the housing 1, a plastic-lined base 10 is fixedly mounted on the surface of the guide rod 9, and a rubber ring 11 is fixedly mounted on the surface of the guide rod 9, a contact board 12 is fixedly arranged between a lining plastic seat 10 and a rubber ring 11, a contact board buffer spring 13 is fixedly arranged on the surface of the lining plastic seat 10, the contact board buffer spring 13 and a guide rod 9 are in a sliding sleeve state, so that the contact board 12 is effectively buffered under the action of the contact board buffer spring 13, a guide rod reset spring 14 is fixedly arranged on the surface of the rubber ring 11, the guide rod reset spring 14 is fixedly connected with a shell cover 2, a static iron core 15 is symmetrically and fixedly arranged on the inner wall of the shell cover 2, the end surface of the static iron core 15 is in a sawtooth shape, a static contact 16 is fixedly arranged on the surface of the static iron core 15, a second high-speed bearing 17 is symmetrically and fixedly arranged on the surface of the shell cover 2, the second high-speed bearing 17 is in sliding connection with the static contact 16, so that the high-speed closing or high-speed separation of the movable contact 7 and the static contact 16 can be accelerated under the action of the second high-speed linear bearing 17, the fixed surface of cap 2 installs terminal 18, and the surface of terminal 18 is equipped with the wiring groove, and the wiring groove is hollow circle structure, is convenient for under the effect of terminal 18, guarantees the effective installation of cable.

This starter electromagnetic switch assembly, use the superstrong tellurium copper of arc extinguishing ability through movable contact 7, increase semi-circular arc-extinguishing groove in addition, and surface treatment uses cadmium-plated, stationary contact 16 uses the superstrong tellurium copper of arc extinguishing ability, and increase trapezoidal arc-extinguishing groove, stop movable contact 7, stationary contact 16 originally designs the material of using TU2, thereby the burn of the contact surface that significantly reduces, through moving iron core 5, the first high-speed linear bearing 8 of stationary iron core 15 increase, the high-speed linear bearing 17 of second, movable contact 7 can be accelerated, the high-speed closure or the high-speed separation of stationary contact 16, through changing the solenoid skeleton into the frame structure that separates, the effective clearance part in magnetic field uses DMD insulated paper, in order to improve magnetic field force.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (10)

1. The utility model provides a starter electromagnetic switch assembly, includes casing (1) and cap (2), its characterized in that: the surface equidistance of casing (1) is equipped with louvre (3), the inner wall fixed mounting of casing (1) has solenoid (4), the inner wall slidable mounting of solenoid (4) has movable iron core (5), it has movable iron core reset spring (6) to move iron core (5) surface sliding cup joint, the fixed surface of moving iron core (5) installs movable contact (7), the inner wall slidable mounting of casing (1) has guide arm (9), the fixed surface of guide arm (9) installs inside lining plastic seat (10), the fixed surface of guide arm (9) installs rubber circle (11), fixed mounting has contact board (12) between inside lining plastic seat (10) and rubber circle (11), the fixed surface of rubber circle (11) installs guide arm reset spring (14), and fixed connection between guide arm reset spring (14) and cap (2), the inner wall symmetry fixed mounting of cap (2) has quiet iron core (15), and the terminal surface of quiet iron core (15) is the cockscomb structure, the fixed surface of quiet iron core (15) installs stationary contact (16).

2. The starter electromagnetic switch assembly according to claim 1, wherein: and a first high-speed linear bearing (8) is fixedly arranged on the surface of the shell (1).

3. The starter electromagnetic switch assembly according to claim 2, wherein: the first high-speed linear bearing (8) is connected with the movable contact (7) in a sliding manner.

4. The starter electromagnetic switch assembly according to claim 1, wherein: the starter electromagnetic switch assembly according to claim 1, wherein: and a contact board buffer spring (13) is fixedly arranged on the surface of the lining plastic seat (10).

5. The starter electromagnetic switch assembly according to claim 4, wherein: the contact plate buffer spring (13) and the guide rod (9) are in a sliding sleeved state.

6. The starter electromagnetic switch assembly according to claim 1, wherein: and a second high-speed bearing (17) is symmetrically and fixedly arranged on the surface of the shell cover (2).

7. The starter electromagnetic switch assembly according to claim 6, wherein: the second high-speed bearing (17) is connected with the static contact (16) in a sliding mode.

8. The starter electromagnetic switch assembly according to claim 1, wherein: the starter electromagnetic switch assembly according to claim 1, wherein: and a binding post (18) is fixedly arranged on the surface of the shell cover (2).

9. The starter electromagnetic switch assembly according to claim 8, wherein: and the surface of the binding post (18) is provided with a wiring groove.

10. The starter electromagnetic switch assembly according to claim 9, wherein: the wiring groove is of a hollow circular structure.

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