CN201904260U

CN201904260U - Power switch

Info

Publication number: CN201904260U
Application number: CN2010206146663U
Authority: CN
Inventors: 赵晖; 朱定华
Original assignee: ZHANGJIAGANG HUAFENG ELECTRICAL ELEMENT CO Ltd
Current assignee: ZHANGJIAGANG HUAFENG ELECTRICAL ELEMENT CO Ltd
Priority date: 2010-11-19
Filing date: 2010-11-19
Publication date: 2011-07-20
Anticipated expiration: 2020-11-19

Abstract

The utility model relates to a power switch with a terminal that is not easy to conduct heat. A base of the existing power switch is usually made of plastic material and the terminal is made of metal material that has good performance on heat conduction and electrical conduction. When a conducting wire is welded with the terminal, if the operation is unskilled or the welding time is a little longer, excessive heat is extremely easy to be transmitted to the plastic base by the terminal, therefore, the base is damaged, the switch fails, and even fire disaster is triggered when the condition is severe. As one or more through holes or gaps are arranged on the terminal of the power switch, the area of heat conduction when the terminal is welded with the conducting line can be reduced, therefore, the heat transmitted from the terminal to the base during the welding process can be reduced, so that the base is not easy to be damaged, and the yield of a switch production line can be improved.

Description

Mains switch

Technical field

The utility model relates to the mains switch that is used for on-off circuit.

Background technology

Existing mains switch all comprises pedestal usually, be arranged on the pedestal and parts such as conductive terminal, button, spring.With existing tumbler switch is example, as Fig. 1, this tumbler switch comprises pedestal (1 '), be fixedly installed on that pedestal (1 ') is gone up and the upper end has the terminal (2 ') of fixed contact (5 '), is arranged on toggle (3 '), movable contact spring (4 ') on the pedestal (1 ') versatilely, one end of described movable contact spring (4 ') has and the corresponding moving contact of fixed contact (5 ') (6 '), and described tumbler switch also comprises the spring (7 ') that is used to connect toggle (3 ') and movable contact spring (4 ').This tumbler switch is by stirring toggle (3 '), drives movable contact spring (4 ') through spring (7 ') and does contact that " seesaw motion " realize dynamic and static contact (6 ') and (5 ') and separate, and then the break-make of realization mains switch.In general, pedestal (1 ') is a plastic material, and terminal (2 ') is to be made by electrical and thermal conductivity good metal material.When switch is installed, lead must be passed the connecting hole (21 ') offered on the terminal (2 ') and with wire bonds on terminal (2 '), when the Welder operates unskilled or grows slightly weld time, too much heat can pass to plastic base (1 ') by terminal (2 '), cause pedestal (1 ') to damage, switch failure is when serious even can initiation fire.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of improved mains switch is provided, and its terminal is difficult for the heat transferred pedestal with wire bonds the time, thereby pedestal is not fragile.

For solving above technical problem, the utility model is taked following technical scheme:

A kind of mains switch comprises that pedestal, an end are fixed on the terminal on the pedestal, offers on the other end of terminal to be used for the connecting hole that joins with lead, also offers one or more through holes or breach on the terminal.Heat conducting area when the existence of through hole or breach has reduced terminal and wire bonds, thereby can reduce the heat that is delivered on the pedestal.

Preferably, through hole or breach are opened on the position between the both ends of terminal, and are good with the position of the close pedestal that is opened in terminal.

Preferably, through hole be shaped as square, polygon, circle or oval, to make things convenient for punching.

Preferably, the aperture of through hole has enough intensity, not frangibility smaller or equal to 2/3 of described terminal width to guarantee terminal.

Preferably, breach be shaped as square or arc, breach had better not be offered triangularity etc. the shape of stress concentration point, in order to avoid cause stress to concentrate, makes terminal be easy to wreck.

Preferably, terminal is provided with two breach, and two breach symmetries are opened on the terminal.

Preferably, the degree of depth of breach is smaller or equal to 1/3 of the terminal width.

By the enforcement of above technical scheme, make the utility model compared with prior art have following advantage:

The utility model mains switch has been owing to offered one or several through holes or breach on terminal, heat conducting area when having reduced terminal and welding mutually with lead, thereby reduced when welding from terminal and be delivered to heat on the pedestal, make pedestal not fragile.

Description of drawings

The utility model is described in more detail below in conjunction with accompanying drawing and concrete execution mode:

Fig. 1 is the structural representation of tumbler switch in the background technology;

Fig. 2 is the structural representation of the utility model embodiment 1 mains switch;

Fig. 3 is the structural representation of embodiment 2 switch terminals;

Fig. 4 is the structural representation of embodiment 3 switch terminals;

Fig. 5 is the structural representation of embodiment 4 switch terminals;

Fig. 6 is the structural representation of embodiment 5 switch terminals;

Wherein: 1,1 ', pedestal; 2,2 ', terminal; 21,21 ', connecting hole; 22, through hole; 23, breach; 3,3 ', toggle; 4,4 ', movable contact spring; 5,5 ', fixed contact; 6,6 ', moving contact; 7,7 ', spring.

Embodiment

The utility model is described in more detail below in conjunction with specific embodiment, but be not limited to these embodiment.

Embodiment 1

As shown in Figure 2, the mains switch of present embodiment comprises that pedestal 1, an end fixedly are embedded terminal 2 in pedestal 1 bottom, are movably arranged on the toggle 3 of pedestal 1 upper oral part and are horizontally set on movable contact spring 4 in the pedestal 1, the upper end of terminal 2 has fixed contact 5, one end of movable contact spring 4 has and fixed contact 5 corresponding moving contacts 6, this switch also comprises the spring 7 that is arranged between movable contact spring 4 and the toggle 3, and two of spring 7 offsets with movable contact spring 4 and toggle 3 respectively.This switch is by stirring toggle 3, and drive movable contact springs 4 through spring 7 and do " seesaw motion " and realize dynamic and static contact 6 and 5 contact and separate, and then the break-make of realization circuit.

The bottom of terminal 2 offers connecting hole 21, during welding lead, lead is passed connecting hole 21 also weld thereon; The position between connecting hole 21 and pedestal 1 at terminal 2 offers square through hole 22, and the width of this through hole 22 is 1/2 of terminal 2 width, and through hole 22 is a connecting hole 21 to 1/5 of the distance of pedestal 1 to the distance of pedestal 1.

Embodiment 2

As shown in Figure 3, the agent structure of mains switch that adopts present embodiment is with embodiment 1, and just the through hole 22 on the terminal 2 is shaped as circle.

Embodiment 3

As shown in Figure 4, the agent structure of mains switch that adopts present embodiment is with embodiment 1, and just the through hole 22 on the terminal 2 is shaped as ellipse.

Embodiment 4

As shown in Figure 5, the agent structure of mains switch that adopts present embodiment is with embodiment 1, no through hole 22 on the terminal 2 just, but symmetry offers two square breach 23, and the degree of depth of this breach 23 is 1/3 of terminal 2 width, breach 23 is apart from pedestal 10 minutes closely.

Embodiment 5

As shown in Figure 6, the agent structure of mains switch that adopts present embodiment is with embodiment 4, just the breach 23 on the terminal 2 be shaped as arc, and the degree of depth of breach 23 is 1/5 of terminal 2 width.

The terminal of mains switch that adopts above embodiment is when welding with lead, and the possibility of damaging pedestal reduces greatly, and the product line rate of finished products that switch is made obviously improves.

More than the utility model has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present utility model and is implemented; can not limit protection range of the present utility model with this; all equivalences of doing according to spirit of the present utility model change or modify, and all should be encompassed in the protection range of the present utility model.

Claims

1. mains switch, comprise that pedestal (1), an end are fixed on the terminal (2) on the described pedestal (1), offer on the other end of described terminal (2) and be used for the connecting hole (21) that joins with lead, it is characterized in that: also offer one or more through holes (22) or breach (23) on the described terminal (2).

2. mains switch according to claim 1 is characterized in that: described through hole (22) or breach (23) are opened on the position between the both ends of described terminal (2).

3. mains switch according to claim 2 is characterized in that: described through hole (22) be shaped as square, polygon, circle, ellipse.

4. according to claim 2 or 3 described mains switches, it is characterized in that: the aperture of described through hole (22) is smaller or equal to 2/3 of described terminal (2) width.

5. mains switch according to claim 2 is characterized in that: described breach (23) be shaped as square or arc.

6. according to claim 2 or 5 described mains switches, it is characterized in that: described terminal (2) is provided with two described breach (23), and two described breach (23) symmetry is opened on the described terminal (2).

7. mains switch according to claim 6 is characterized in that: the degree of depth of described breach (23) is smaller or equal to 1/3 of described terminal (2) width.