Ignition switch

Abstract

The utility model provides an ignition switch, which comprises a shell, a bottom cover matched with the shell, a pin inserted on the bottom cover, a lock body arranged in the shell, a lock cylinder coaxially arranged with the lock body, a static contact piece arranged on the bottom cover and electrically connected with the pin, and a movable contact piece in linkage fit with the lock cylinder, the side, facing the static contact piece, of the movable contact piece is provided with a contact in abutting fit with the static contact piece in a protruding mode. The electric connector is stable and reliable in electric contact.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, specifically to an ignition switch. Background Technology

[0002] The ignition lock, also known as the ignition switch, is a multi-position switch that requires a corresponding key to operate. The ignition lock is typically used to control the ignition circuit, instrument circuit, electronic control system (engine), starting circuit, and auxiliary electrical circuits (except for the anti-theft device and most car horn circuits, warning lights, hazard warning lights, and some car parking lights).

[0003] The existing ignition switch includes a housing, a base cover adapted to the housing, pins inserted into the base cover, a stationary contact plate mounted on the base cover, a lock body installed inside the housing, a lock cylinder coaxially mounted with the lock body, and a moving contact plate that works in conjunction with the lock cylinder. The stationary contact plate has contacts for conducting the circuit. When a mechanical key is inserted into the lock cylinder's keyhole, it controls the lock cylinder to drive the moving contact plate to rotate, causing the moving contact plate to engage with the contacts at different positions to switch positions and achieve different functions. The raised contacts on the stationary contact plate can easily lead to unstable contact, affecting signal transmission and thus making the ignition switch prone to failure. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide an ignition switch with stable and reliable electrical contact.

[0005] To address the above problems, the following technical solution is provided: an ignition switch, including a housing, a bottom cover adapted to the housing, a pin inserted into the bottom cover, a lock body installed in the housing, and a lock cylinder coaxially arranged with the lock body. The lock cylinder has a lock hole. It also includes a stationary contact plate installed on the bottom cover and electrically connected to the pin, and a movable contact plate that is linked and cooperates with the lock cylinder. The movable contact plate has a contact point protruding on one side facing the stationary contact plate and abutting and cooperating with the stationary contact plate.

[0006] In the above structure, the contact is located at the bottom of the moving contact piece, so that it can swing with the moving contact piece, thereby improving the stability of the contact between the moving contact piece and the stationary contact piece and improving the reliability of the signal transmission of this utility model.

[0007] The present invention is further provided that a mounting hole is provided at the bottom end of the lock body corresponding to the contact point, and a limiting spring is provided in the mounting hole to abut against and cooperate with the moving contact piece.

[0008] In the above structure, the installation hole facilitates the installation of the limit spring, thereby improving its stability. The limit spring applies elastic pressure to the moving contact, compensating for wear and further enhancing the stability of the engagement between the moving and stationary contacts, thus improving the reliability of this invention.

[0009] The present invention is further provided that a notch adapted to the limiting spring is provided at the position corresponding to the contact point on the moving contact piece.

[0010] In the above structure, the stability of the limiting spring can be further improved by setting a notch, thereby improving the reliability of this utility model.

[0011] The present invention is further configured such that the movable contact piece includes a piece body that is linked and cooperates with the lock cylinder, a first abutting part that protrudes radially relative to the piece body, and a second abutting part that is disposed opposite to the first abutting part, and the contact point includes a first contact point located at the first abutting part and a second contact point and a third contact point located at both ends of the second abutting part respectively.

[0012] In the above structure, by providing the first abutting part and the second abutting part, it is convenient for the first contact, the second contact and the third contact to cooperate with the stationary contact piece to realize the switching of gears, which facilitates the assembly of this utility model and can improve the reliability of this utility model.

[0013] The present invention is further configured such that the second abutting portion is fan-shaped.

[0014] The above structure facilitates the production and installation of the moving contact piece, thereby improving the ease of assembly of this utility model. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the internal structure of the shell in this utility model.

[0018] Figure 4 This is a schematic diagram of the bottom cover of this utility model.

[0019] The labels in the diagram have the following meanings: 1-House; 2-Bottom cover; 3-Pin; 4-Lock body; 5-Lock cylinder; 51-Lock hole; 6-Stationary contact piece; 7-Moving contact piece; 71-Contact point; 41-Mounting hole; 8-Limit spring; 72-Notch; 73-Piece body; 74-First abutment part; 75-Second abutment part; 711-First contact point; 712-Second contact point; 713-Third contact point. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] like Figures 1 to 4 An ignition switch is shown, including a housing 1, a bottom cover 2 adapted to the housing 1, a pin 3 inserted into the bottom cover 2, a lock body 4 installed in the housing 1, and a lock cylinder 5 coaxially arranged with the lock body 4. The lock cylinder 5 has a lock hole 51. It also includes a stationary contact 6 installed on the bottom cover 2 and electrically connected to the pin 3, and a movable contact 7 that is linked and cooperates with the lock cylinder 5. The movable contact 7 has a contact point 71 protruding on the side facing the stationary contact 6 and abutting and cooperating with the stationary contact 6.

[0023] In the above structure, the contact 71 is located at the bottom of the moving contact 7, so that it can swing with the moving contact 7, thereby improving the stability of the contact between the moving contact 7 and the stationary contact 6 and improving the reliability of the signal transmission of this utility model.

[0024] In this embodiment, a mounting hole 41 is provided at the bottom end of the lock body 4 at a position corresponding to the contact point 71, and a limiting spring 8 is provided in the mounting hole 41 to abut against and cooperate with the moving contact piece 7.

[0025] In the above structure, the mounting hole 41 facilitates the installation of the limit spring 8, thereby improving the stability of the limit spring 8. The limit spring 8 applies elastic pressure to the moving contact 7, enabling wear compensation and further improving the stability of the engagement between the moving contact 7 and the stationary contact 6, thus enhancing the reliability of this invention.

[0026] In this embodiment, a notch 72 adapted to the limiting spring 8 is provided on the moving contact piece 7 at the position corresponding to the contact point 71.

[0027] In the above structure, the stability of the limiting spring 8 can be further improved by setting the notch 72, thereby improving the reliability of this utility model.

[0028] In this embodiment, the movable contact piece 7 includes a piece body 73 that is linked and cooperates with the lock cylinder 5, a first abutting part 74 that protrudes radially relative to the piece body 73, and a second abutting part 75 that is disposed opposite to the first abutting part 74. The contact point 71 includes a first contact point 711 located at the first abutting part 74, and a second contact point 712 and a third contact point 713 located at both ends of the second abutting part 75, respectively.

[0029] In the above structure, by providing the first abutting part 74 and the second abutting part 75, the first contact 711, the second contact 712 and the third contact 713 can cooperate with the stationary contact piece 6 to realize the switching of gears, which facilitates the assembly of this utility model and can improve the reliability of this utility model.

[0030] In this embodiment, the second abutment portion 75 is fan-shaped.

[0031] The above structure facilitates the production and installation of the moving contact 7, thereby improving the ease of assembly of this utility model.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A kind of ignition switch, including shell, with the shell of bottom cover, the plug inserted on the plug of bottom cover, install in the lock body of shell and the lock cylinder coaxially arranged with lock body, the lock hole is opened in the lock cylinder, it is characterized in that: It also comprises a static contact installed on the bottom cover and electrically connected with the pin, and a dynamic contact cooperating with the lock cylinder, wherein the side of the dynamic contact facing the static contact is provided with a contact point abutting with the static contact.

2. An ignition switch according to claim 1, wherein: The lock body is provided with a mounting hole at the position corresponding to the contact point, and a limiting spring is arranged in the mounting hole and abuts with the dynamic contact.

3. An ignition switch according to claim 2, wherein: The dynamic contact is provided with a notch at the position corresponding to the contact point, and the notch is adapted to the limiting spring.

4. An ignition switch according to claim 2, wherein: The dynamic contact comprises a contact body cooperating with the lock cylinder, a first abutting part protruding in the radial direction of the contact body, and a second abutting part opposite to the first abutting part, and the contact point comprises a first contact point located at the first abutting part, and a second contact point and a third contact point respectively located at the two ends of the second abutting part.

5. An ignition switch according to claim 4, wherein: The second abutting part is in the shape of a sector.

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