KR19990015838U - Preheating plug and fastening method - Google Patents

Abstract

The present invention addresses the possibility of the main component parts generated during maintenance by the structure and connection method of the computer terminal (2), insulating rubber (10), electrode (9), and adapter (11) of the glow plug, which is an ignition aid for diesel engines. I can eliminate it.

The wire terminal is designed to prevent problems caused by overcurrent caused by short circuits with external conductors (contact loss of relay, fire, etc.).

Description

Preheating plug and fastening method

It is a technology related to the configuration of components connecting the preheating plug and battery power to the preheating system of the ignition aid for diesel engines.

Conventional glow plugs are composed of complex terminal tightening aids for fastening the wire terminals to the screwed electrodes, and are separated in the form of separate parts and frequently lost during assembly and disassembly and work in a narrow engine room. It has the difficulty of assembling and disassembling, and it is possible to short the possibility of short circuit with parts such as fastening nut (1), electric wire terminal (2), flat washer (3), srim washer (4), and round nut (5). Have

The present invention is a technology for fixing the connection of the wire terminal (2) and the adapter (11), the adapter 11 and the electrode (9) so as not to be separated from the vibration of the engine and preheating the battery power supply with a small voltage increase Technology to supply the adapter of the plug.

1 is a conventional preheating plug

2 is a preheating plug was carried out the present invention

Fig. 3 Electrode shape, wire terminal shape

Figure 4 Insulation rubber shape

* Explanation of symbols for main parts of the drawings

1. Fastening nut: Parts fixing wire terminal to preheating plug

2. Wire terminal: Delivers battery power to preheating plug

3. Flat washer: Cable tightening aid

4. Srim washer: Cable tightening aid

5. Round Nut: Electrode Flow Prevention

6. Insulation washer: Insulation holding part between electrode and bracket

7. Bracket: Fix the heating element and install it on the cylinder head of the engine.

8. Smoke emitting body: Electric heating device

9. All poles: Power supply parts

10. Insulation rubber: Insulation of wire terminal, foreign material injection prevention and role of compression ring

11. Adapter: Connecting parts of electrode and wire terminal

The electrode 9 of Fig. 1 is fixed without being screwed on the outside and then inserted into the adapter 11 to be rotated by applying pressure from the outside and screwed to the outside of the adapter 11. The inner projections (2-1), (2-2), and (2-3) of the wire terminals are in close contact with the 11-2 of the adapter 11 without processing the wires, or the wire terminals without inner protrusions (2) 2-4 part of the product is fixed by the compressive force of the insulating rubber (10) has a product structure and method for transmitting electricity.

The wire terminal 2 of C of FIG. 3 has a circular inner side protrusion of 2-1 part, and the wire terminal 2 of D has two inner side protrusions 2-2 and an electric wire terminal of E. (2) the semicircular outer compression ring (2-3) serves to prevent the departure from the adapter (11).

The insulating rubber 10 of FIG. 4 inserts the wire terminal 2 into the inside to insulate the outside, and the 10-2 portion serves as the compression ring.

Projection 10-3 is coupled to the groove (11-3) of the adapter 11 has a function to prevent the insulation rubber (10) from being separated and the 10-4 part to cover the 11-4 part of the adapter (11) It is insulated from the conductor of the engine cylinder head.

It is a simple structure when connecting the preheating plug and the wire terminal, and there is no possibility of component loss during maintenance, and there is no possibility of part loss and fire by short circuit between the external conductor and the preheating plug electrode.

The present invention does not require the fastening nut of the GIOW PLUG, which is an ignition auxiliary device for diesel engines, and prevents the disconnection of the preheating plug and the fire of the vehicle by electric short circuit, so as to protect the customer's satisfaction and technology.

Claims (5)

Connection method of the adapter (11) method that does not require the fastening nut (1) and the shape of the parts. Fastening method and part shape of wire terminal (2) which can be compressed by insulating rubber (10). Structure and part shape which can be prevented from detachment by protrusion type rubber (10-3). Method and part shape which can prevent short circuit with external conductor by covering the 11 to 4 parts of the adapter by insulating rubber (10). The shape of the screwless electrode 9 and the structure that the adapter is prevented from rotating by kneading the electrode 9.