CN201352533Y - Integral type starter electromagnetic switch - Google Patents

Abstract

Disclosed is an integral type starter electromagnetic switch which resolves the problems existing in current automobile used starter electromagnetic switches of easy detachment of a dynamic iron core and adhesion of a switch. The utility model comprises a switch outer casing, a switch coil, a static contact seat, a static iron core, a dynamic contact, a dynamic iron core and a restoring spring, wherein the switch coil is disposed inside the switch outer casing, the static iron core is disposed at one end of the switch coil and fixed through the static contact seat, the dynamic iron core is disposed at the other end of the switch coil, and one end of the dynamic contact is installed inside the static iron core. The utility model is characterized in that the other end of the dynamic contact is fixed on the dynamic iron core and the restoring spring is installed on the dynamic contact and is arranged between the dynamic iron core and the static iron core. The integral type starter electromagnetic switch has the advantages that the dynamic iron core is prevented from falling off from the switch coil and deformation caused by the restoring spring falling off from the switch coil is further avoided, thereby improving production efficiency and product quality, enlarging travel route of the dynamic contact, ensuring restoration of the dynamic contact, preventing the problem of adhesion of the electromagnetic switch and strengthening competition capacity of products.

Description

The integral type starter relay

Technical field

The utility model belongs to a kind of vehicle-mounted starting machine parts, particularly a kind of integral type starter relay.

Background technology

The dynamo-electric magnetic switch of existing vehicle-mounted starting as shown in Figure 3, it mainly is made of switch housing 4, switch coil 5, stationary contact headstock 1, static iron core 8, moving contact 12, moving iron core 7, iron core spring 13 and return spring 11 etc.Switch coil 5 is installed in the switch housing 4, static iron core 8 is installed in an end of switch coil 5, and it is fixing with stationary contact headstock 1, moving contact 12 is installed in the static iron core 8, the contact 9 that matches with connection bolt 10 also is installed on moving contact 12, return spring 11 is between moving contact 12 and stationary contact headstock 1, between moving contact 12 and static iron core 8, balancing spring 3 is housed also, balancing spring 3 is used for the active force of balance return spring 11, moving iron core 7 is positioned at the other end of switch coil 5, iron core spring 13 is between static iron core 8 and moving iron core 7, and it only plays the effect that iron core 7 is resetted.The subject matter that this starter relay exists is, 1, owing to moving iron core 7 and iron core spring 13 being fixed together with electromagnetic switch itself, just be placed in the fairlead of switch coil 5 inboards, therefore, when the assembling starter relay, moving iron core 7 and iron core spring 13 are easy to come off, and promptly moving iron core 7 and iron core spring 13 are easy to fall down from the fairlead of switch coil 5, bring very big inconvenience to assembling, influence production efficiency.2, also may produce distortion after iron core spring 13 comes off, influence the length and the elastic force of spring, the performance generation harmful effect to electromagnetic switch can make electromagnetic switch not work, and causes the serious consequence of defective starter.3, because the stroke of moving contact 12 is short, and the length of return spring 11 is short, elastic force is little, therefore, occurs contact 9 and the phenomenon that connection bolt 10 breaks not open on the moving contact 12 easily, causes the electromagnetic switch adhesion.

Summary of the invention

The technical problems to be solved in the utility model is, overcomes that moving iron core that the dynamo-electric magnetic switch of existing vehicle-mounted starting exists comes off easily and the problem of switch adhesion, provides that a kind of moving iron core does not come off, the NA integral type starter relay of switch.

The utility model comprises switch housing, switch coil, stationary contact headstock, static iron core, moving contact, moving iron core and back-moving spring, the switch coil is installed in the switch housing, static iron core is installed in an end of switch coil, and fix with the stationary contact headstock, moving iron core is positioned at the other end of switch coil, and an end of moving contact is installed in the static iron core, its special character is, the other end of moving contact is fixed on the moving iron core, and back-moving spring is installed on the moving contact, between moving iron core and static iron core.

Advantage of the present utility model is:

1, an end of moving contact is fixed on the moving iron core, the other end is installed in the static iron core, like this, moving iron core and back-moving spring just and the miscellaneous part of electromagnetic switch be assembled into an integral body, the phenomenon of having avoided moving iron core from the switch coil, to come off, and the back-moving spring problem on deformation that from the switch coil, comes off and cause, improved the quality of production efficiency and product.

2, increased the stroke of moving contact, and replace iron core spring and return spring with back-moving spring, when moving iron core resets, moving contact also resets simultaneously, and back-moving spring length is big, resilient beam, guaranteed resetting of moving contact, stop the problem of electromagnetic switch adhesion, improved the quality of product, strengthened the competitiveness of product.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the assembly structure schematic diagram of the utility model moving contact and moving iron core;

Fig. 3 is the structural representation of existing electromagnetic switch.

Embodiment

As depicted in figs. 1 and 2, the utility model comprises switch housing 4, switch coil 5, stationary contact headstock 1, static iron core 8, moving contact 2, moving iron core 7 and back-moving spring 6, switch coil 5 is installed in the switch housing 4, static iron core 8 is installed in an end of switch coil 5, and it is fixing with stationary contact headstock 1, connection bolt 10 is housed on stationary contact headstock 1, moving iron core 7 is positioned at the other end of switch coil 5, one end of moving contact 2 is installed in the static iron core 8, in its end the contact 9 that matches with connection bolt 10 is housed also, on moving contact 2, between contact 9 and the static iron core 8 balancing spring 3 is housed also; The other end of moving contact 2 is fixed on the moving iron core 7, adopts interference fit between the two, and is pressed into external force, is fixed together; Back-moving spring 6 is installed on the moving contact 2, and between moving iron core 7 and static iron core 8, back-moving spring 6 resets iron core 7 and moving contact 2 simultaneously.

Claims (1)

1, a kind of integral type starter relay, comprise switch housing, switch coil, stationary contact headstock, static iron core, moving contact, moving iron core and back-moving spring, the switch coil is installed in the switch housing, static iron core is installed in an end of switch coil, and fix with the stationary contact headstock, moving iron core is positioned at the other end of switch coil, one end of moving contact is installed in the static iron core, it is characterized in that, the other end of moving contact is fixed on the moving iron core, back-moving spring is installed on the moving contact, between moving iron core and static iron core.

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