CN213905216U

CN213905216U - Mechanical weak current reset switch

Info

Publication number: CN213905216U
Application number: CN202023206820.6U
Authority: CN
Inventors: 程雪忠
Original assignee: Guangdong Rafael Electric Co ltd
Current assignee: Guangdong Rafael Electric Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-06
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses flush mounting plate of switch technical field especially relates to a weak current reset switch of mechanical type. The utility model provides a weak current reset switch of mechanical type, the weak current reset switch of mechanical type includes by interior mechanism outside to in proper order: the mechanical switch comprises a switch rear seat, a mechanical switch main body, a switch middle cover, a switch spring, a return spring, a switch moving part and a switch seesaw; in the mechanical switch main body, a copper sheet of the switch outgoing line assembly is of a sharp structure. The utility model provides an among the technical scheme, because the copper sheet of the switch subassembly of being qualified for the next round of competitions is sharp-pointed structure, can pound into slight dot after the contact piece on the movable contact spring bumps to come, can let weak electric current switch-on again when getting rid of the dust, effectively ensured that the weak electric switch of mechanical type can normally switch-on and can not the service failure. The utility model provides a pair of weak current reset switch of mechanical type has solved prior art, and when having the dust, the technical defect of the service failure that can not normally put through appears easily in the weak current switch of mechanical type.

Description

Mechanical weak current reset switch

Technical Field

The utility model belongs to the technical field of flush mounting plate of switch, especially, relate to a weak current reset switch of mechanical type.

Background

The mechanical weak current reset switch is a switch which is used in the field of weak current, mainly has the main function of connecting the weak current to generate an electric shock signal, is generally formed by adding a reset spring to a mechanical strong current single-pole switch, and is closed when being manually pressed; when the hand is released, the switch is opened under the action of the spring. The working principle of the device is that a contact signal is generated, and the switch is turned on and then turned off, for example, an entrance guard button of a building door is a common mechanical weak current reset switch at ordinary times.

In the prior art, the rated voltage and current of a mechanical strong current single-pole switch used in a mechanical weak current reset switch are respectively 250V and 10A, in order to meet the regulations of the national security mandatory standard, the moving contact and the static contact of the strong current switch are silver-coated or pure silver contacts, if dust exists on the silver points, the moving contact and the static contact can be attracted together to be connected due to the fact that the voltage and the current are large, the dust on the silver points can be burnt, and the normal connection and disconnection of the strong current switch are not influenced. However, the weak current switch has very small and weak current, no self-attraction capability and no dust burning capability, the structure of the strong current switch is directly used as the weak current switch, and if dust exists on a silver point, the situation that the weak current switch cannot be normally connected is easy to occur,

Therefore, a mechanical weak current reset switch is developed to solve the technical defect that in the prior art, when dust exists, a mechanical weak current switch is prone to have a use fault that the mechanical weak current switch cannot be normally turned on, and therefore, a problem to be solved by those skilled in the art is urgently needed.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a weak current reset switch of mechanical type for among the solution prior art, when there is the dust, the technical defect of the service failure that can not normally put through appears easily in the weak current switch of mechanical type.

The utility model provides a weak current reset switch of mechanical type, the weak current reset switch of mechanical type includes by interior mechanism outside to in proper order: the mechanical switch comprises a switch rear seat, a mechanical switch main body, a switch middle cover, a switch spring, a return spring, a switch moving part and a switch seesaw;

in the mechanical switch main body, a copper sheet of the switch outgoing line assembly is of a sharp structure.

Preferably, in the mechanical switch main body, the surface of the switch moving contact piece component is covered with silver points.

Preferably, the switch seesaw is covered with an anti-aging layer on the surface.

To sum up, the utility model provides a weak current reset switch of mechanical type, the weak current reset switch of mechanical type includes by interior mechanism outside to in proper order: the mechanical switch comprises a switch rear seat, a mechanical switch main body, a switch middle cover, a switch spring, a return spring, a switch moving part and a switch seesaw; in the mechanical switch main body, a copper sheet of the switch outgoing line assembly is of a sharp structure. The utility model provides an among the technical scheme, because the copper sheet of the switch subassembly of being qualified for the next round of competitions is sharp-pointed structure, can pound into slight dot after the contact piece on the movable contact spring bumps to come, can let weak electric current switch-on again when getting rid of the dust, effectively ensured that the weak electric switch of mechanical type can normally switch-on and can not the service failure. The utility model provides a pair of weak current reset switch of mechanical type has solved prior art, and when having the dust, the technical defect of the service failure that can not normally put through appears easily in the weak current switch of mechanical type.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of a backlight-changed tact switch according to an embodiment of the present invention;

fig. 2 is a schematic view of a mechanical weak current reset switch according to an embodiment of the present invention, wherein a main body of the mechanical switch is partially enlarged;

the switch comprises a switch rear seat 1, a switch outgoing line assembly 21, a switch movable contact piece assembly 22, a switch middle cover 3, a switch spring 4, a return spring 5, a switch movable piece 6 and a switch seesaw 7.

Detailed Description

An embodiment of the utility model provides a mechanical type light current reset switch for solve prior art, when having the dust, the technical defect of the service failure that can not normally put through appears easily in mechanical type light current switch.

To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides a mechanical weak current reset switch, which sequentially includes, from inside to outside: the mechanical switch comprises a switch rear seat, a mechanical switch main body, a switch middle cover, a switch spring, a return spring, a switch moving part and a switch seesaw; in the mechanical switch main body, a copper sheet of the switch outgoing line assembly is of a sharp structure. The utility model provides a pair of weak current reset switch of mechanical type has solved prior art, and when having the dust, the technical defect of the service failure that can not normally put through appears easily in the weak current switch of mechanical type.

The embodiment of the utility model provides an among the technical scheme, because the copper sheet of the switch subassembly of being qualified for the next round of competitions is sharp-pointed structure, can pound into slight dot after the contact piece on the movable contact spring bumps and comes, can let weak electric current switch-on again when getting rid of the dust, effectively ensured that mechanical type weak current switch can normally switch-on and can not the service failure.

Further optimize technical scheme, because in the weak current reset switch of mechanical type, the electric current is more weak, and the security performance is high, consequently, on the basis of ensureing that the electric current can smoothly pass through, its preparation cost of minimizing, the embodiment of the utility model provides an in the mechanical switch main part of the weak current reset switch of mechanical type, the surface covering of switch movable contact piece subassembly has the silver point.

For the life of further extension mechanical type light current reset switch, the embodiment of the utility model provides an among the technical scheme, the surface covering of switch seesaw has anti-aging layer.

It is right above the utility model provides a weak current reset switch of mechanical type introduces in detail, to the general technical personnel in this field, according to the utility model discloses the thought of embodiment all has the change part on concrete implementation and application scope, to sum up, this description content should not be understood as right the utility model discloses a restriction.

Claims

1. The utility model provides a weak current reset switch of mechanical type which characterized in that, weak current reset switch of mechanical type includes by inside to outside mechanism in proper order: the mechanical switch comprises a switch rear seat, a mechanical switch main body, a switch middle cover, a switch spring, a return spring, a switch moving part and a switch seesaw;

2. The mechanical weak current reset switch according to claim 1, wherein the surface of the switch moving contact member in the mechanical switch main body is covered with silver dots.

3. The mechanical weak current reset switch according to claim 1, wherein the surface of the switch seesaw is covered with an anti-aging layer.