CN201063311Y

CN201063311Y - Ignition switch

Info

Publication number: CN201063311Y
Application number: CNU200720156074XU
Authority: CN
Inventors: 王上聚
Original assignee: ZHEJIANG YABOLAN ELECTRICAL APPLIANCE CO Ltd
Current assignee: ZHEJIANG YABOLAN ELECTRICAL APPLIANCE CO Ltd
Priority date: 2007-07-26
Filing date: 2007-07-26
Publication date: 2008-05-21
Anticipated expiration: 2017-07-26

Abstract

The utility model discloses an ignition switch which comprises a shell, a static contact, a dynamic contact and a rotor, wherein, the static contact is fixed in the shell, the dynamic contact is separated from the static contact and is connected with the rotor, the switch is also provided with an ejector rod, one end of the ejector rod is connected with the dynamic contact, the other end of the ejector rod is made in a slide fit with a cam in the rotor. One end of the ejector rod is connected with the dynamic contact, the other end of the ejector rod is made in a slide fit with the cam in the rotor, thereby the circular motion of the rotor is conversed into the up-down linear motion of the ejector rod, the sliding contact between the dynamic contact and the static contact is changed into the up-down collision contact, the ignition switch with no mechanical abrasion between the dynamic contact and the static contact, long service life, no power supply high-frequency self-vibration noise and no static contact bridging short circuit is realized.

Description

A kind of ignition switch

Technical field

The utility model relates to a kind of switch, specifically, relates to a kind of ignition switch, is mainly used in automobile or engineering vehicle, can open or turn-off the power supply that the car load multichannel loading is used.

Background technology

The ignition switch that present automobile or engineering vehicle are used, electrical property break-make structure all are made up of (cathode copper) moving contact, (cathode copper) fixed contact, spring, rotor, shell, and wherein fixed contact is riveted on the base, and spring and moving contact are contained in the rotor.Its operation principle is: when ignition key twists, drive the twisting of lock core and rotor, moving contact twists with rotor, and fixed contact is fixed, when moving contact twists when contacting with fixed contact switch connection.But because the dynamic and static contact of this switch is sliding contact, thereby form friction relatively, and cause dynamic and static contact easy to wear, shortened the useful life of ignition switch, and when being switched on or switched off, can form power supply high frequency self-vibration clutter, the mixture that chip that is produced owing to rubbing and metallic particles and grease high temperature cabonization thing form causes bridge joint short circuit between the fixed contact, can initiation fire when serious.

Summary of the invention

For overcoming the defective of prior art, the technical problems to be solved in the utility model has provided a kind of ignition switch of not having mechanical wear between the sound contact, long service life, non-transformer high frequency self-vibration clutter, the short circuit of no fixed contact bridge joint.

The technical solution of the utility model is: this ignition switch, comprise shell, fixed contact, moving contact, rotor, and fixed contact is fixing in the enclosure, moving contact is connected at interval and with rotor with fixed contact, also be provided with push rod, the one end is connected with moving contact, and the cam slide in the other end and the rotor cooperates.

Because an end of push rod is connected with moving contact, cam slide in the other end and the rotor cooperates, thereby the circular motion of rotor is converted to the rectilinear motion up and down of push rod, make to become the contact that crashes up and down by sliding contact between the sound contact, realized mechanical wear, long service life, the non-transformer high frequency self-vibration clutter between no sound contact, the ignition switch of no fixed contact bridge joint short circuit.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is a left view of the present utility model;

Fig. 3 is a vertical view of the present utility model;

Schematic diagram when Fig. 4 is the disconnection of sound of the present utility model contact;

Schematic diagram when Fig. 5 is a sound contacting of the present utility model.

Embodiment

With reference to the accompanying drawings, will be described in detail embodiment of the present utility model.

As can be seen from Figure 2, fixed contact 4 is riveted on inserted sheet 1, in 2, moving contact 6 is riveted on the movable contact spring 5, and and movable contact spring spring 17 be installed in together in the location notch of movable contact bar 18, one end of reed 16 is stuck in the narrow groove of movable contact bar 18, the other end is in the U-shaped stopper slot of auxiliary block 7, the roofbolt of push rod 13 passes the centre bore of return spring 14 and guide pin bushing 8, and with reed frame 15 riveted joint, the endoporus tight fit of guide pin bushing 8 and shell 3, the two ends of reed frame 15 are stretched in the U-shaped stopper slot of auxiliary block 7, and centering block 12 is installed in the location notch of shell 3, rely on projection location in centering block 12 location holes and shell 3 location notchs, the other end of centering block 12 and cam 11, push rod 13 contacts, one end of rotor 10 is positioned in housing 9 location holes, and the other end is positioned in shell 3 location holes, and cam 11 is riveted in the rotor 10.

Schematic diagram when Fig. 4 is the disconnection of sound of the present utility model contact.When rotor 10 is subjected to the transmission of lock core assembly and rotates, and when cam 11 is in high point, owing to be subjected to the elastic force effect of return spring 14 on the push rod 13, centering block 12 is close to cam 11 edge tracks and to bottom offset, centering block 12, push rod 13, reed frame 15 move down simultaneously, thereby make auxiliary block 7 that the seesaw motion take place, make moving contact seat 18 carry out top offset, reed 16 is subjected to 15 extruding of reed frame that deformation takes place simultaneously, and make saltus step on the moving contact seat 18, moving contact 5 is followed top offset, separates with fixed contact 4, disconnects process thereby form electrical property.

Schematic diagram when Fig. 5 is a sound contacting of the present utility model.When rotor 10 is subjected to the transmission of lock core assembly and rotates, and when cam 11 is in low spot, owing to be subjected to the elastic force effect of return spring 14 on the push rod 13, centering block 12 is close to cam 11 edge tracks and to top offset, while centering block 12, push rod 13, reed frame 15 moves up, thereby the two ends that make reed frame 15 break away from the location notch of auxiliary block 7, reed is eliminated and generation tension force by reed frame extruding force, cause auxiliary block 7 that reverse seesaw motion takes place, make moving contact seat 18 carry out bottom offset, moving contact 5 is followed bottom offset, contacts with fixed contact 4, connects process thereby form electrical property.

Claims

1. ignition switch, comprise shell, fixed contact, moving contact, rotor, inserted sheet, inserted sheet stretches out shell, fixed contact is riveted on the inserted sheet, moving contact is connected at interval and with rotor with fixed contact, it is characterized in that: also be provided with push rod, the one end is connected with moving contact, and the cam slide in the other end and the rotor cooperates.

2. ignition switch according to claim 1, it is characterized in that: moving contact is riveted on the movable contact spring and with the movable contact spring spring and is installed on the movable contact horse, push rod cooperates with cam slide by the centering block on it, push rod, return spring, guide pin bushing, reed are riveted successively, reed one end is installed in the reed frame, and the other end is connected with the location notch of movable contact spring.