CN202585209U

CN202585209U - Novel microswitch

Info

Publication number: CN202585209U
Application number: CN 201120506459
Authority: CN
Inventors: 邓松青
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-06
Filing date: 2011-12-06
Publication date: 2012-12-05
Anticipated expiration: 2021-12-06

Abstract

The utility model relates to a novel microswitch which includes a pedestal, an upper cover, a button, a public terminal, a leading-out terminal which is provided with a fixed contact, a moving contact sheet which is provided with a moving contact, and a rotary rod. The public terminal is connected with the moving contact sheet and the rotary rod respectively. An extension spring is arranged between the rotary rod and the moving contact sheet. One end of the extension spring is hooked on the rotary rod, and the other end is hooked on the moving contact sheet. Compared with the prior art, the extension spring is arranged between the rotary rod and the moving contact sheet, and one end of the extension spring is hooked on the rotary rod, the other end is hooked on the moving contact sheet, so the motion of the microswitch becomes more sensitive, and the current bearing scope becomes wider, i.e. the current bearing scope is from 0.05 to 22A. Besides, the novel microswitch is excellent in vibration resistance.

Description

A kind of novel sensitive switch

Technical field

The utility model relates to a kind of mains switch, particularly a kind of novel sensitive switch.

Background technology

The sensitive switch of normal structure is widely used in fields such as various household electrical appliance, electronic equipment, automation equipment, communication apparatus, automotive electronics, instrument and meter, electric tool at present; The inner actuating mechanism of the sensitive switch of normal structure is to adopt elastic piece structure; The sensitive switch of this elastic piece structure; Defectives such as current load narrow range (general 0.5-16 ampere) on the one hand also exists to receive the external impacts internal structure and be prone to get loose on the other hand, and vibration resistance is relatively poor.

The utility model content

The utility model is intended to solve the above-mentioned defective of prior art, a kind of novel current load wide ranges is provided and receives the external impacts internal structure to be difficult for getting loose the sensitive switch of good anti-vibration.

The technical scheme that the utility model adopted is: a kind of novel sensitive switch; Comprise the leading-out terminal of base, loam cake, button, public terminal, drive fixed contact, the movable contact spring and the dwang of drive contact, public terminal links to each other with dwang with movable contact spring respectively; Be provided with an extension spring between said movable contact spring and the dwang, extension spring one end hook is connected on the movable contact spring, and other end clasp joint is on dwang.

Said public terminal one end is provided with two support arms, forms a draw-in groove between two support arms, and dwang is connected in the draw-in groove.

Said two support arm inboards are provided with V-shaped groove, on the movable contact spring corresponding be provided with two with the contacted bending sheet of V-shaped groove.

Said movable contact spring one end is provided with first through hole with the extension spring clasp joint.

Said dwang one end is provided with second through hole with the extension spring clasp joint.

Be covered with two projections on said, on the base corresponding be provided with two hold projection shrinkage pool.

Said public terminal has three roughly rectangular bendings, and the structure that is centrosymmetric; Public terminal also has four pins, and wherein two pins are fixed on the base, and two other pin is fixed on and covers.

Said leading-out terminal is planar structure, and is centrosymmetric; Leading-out terminal also has four pins, and wherein two pins are fixed on the base, and two other pin is fixed on and covers.

Said loam cake is being provided with two parallel grooves with button contact position one side.

Compared with prior art, a kind of novel sensitive switch of the utility model is through being provided with an extension spring between dwang and movable contact spring, and extension spring one end hook is connected on the dwang, and other end clasp joint has more sensitivity of sensitive switch action on movable contact spring; The carrying scope of electric current is wideer, can be distributed in 0.05 to 22 ampere; The advantage of good anti-vibration.

Description of drawings

Fig. 1 is the explosive view of the utility model;

Fig. 2 is the installation diagram that the utility model is removed loam cake;

Fig. 3 is the vertical view of the utility model loam cake.

Embodiment

Extremely shown in Figure 3 like Fig. 1: a kind of novel sensitive switch of the utility model; Comprise the leading-out terminal 5 of base 1, loam cake 2, button 3, public terminal 4, band fixed contact 51, the movable contact spring 6 and the dwang 7 of drive contact 61, public terminal 4 links to each other with dwang 7 with movable contact spring 6 respectively; Be provided with an extension spring 8 between movable contact spring 6 and the dwang 7, extension spring 8 one end hooks are connected on the movable contact spring 6, and other end clasp joint is on dwang 7.

Public terminal 4 one ends are provided with and form a draw-in groove 42 between two support arms, 41, two support arms 41, and dwang 7 is connected in the draw-in groove 42; Public terminal 4 has three roughly rectangular bendings, and the structure that is centrosymmetric; Public terminal also has four pins 43, and wherein two pins 43 are fixed on the base 1, and two other pin 43 is fixed on the loam cake 2.Leading-out terminal 5 is planar structure, and is centrosymmetric, and leading-out terminal 5 also has four pins 52, and wherein two pins 52 are fixed on the base 1, and two other pin 52 is fixed on the loam cake 2.Loam cake 2 is being provided with two parallel grooves 22 with button 3 contact positions one side.

Two support arms, 41 inboards are provided with V-shaped groove 411, corresponding being provided with and V-shaped groove 411 contacted two bending sheets 62 on the movable contact spring 6.Movable contact spring 6 one ends are provided with first through hole 63 with extension spring 8 clasp joints, and dwang 7 one ends are provided with second through hole 71 with extension spring 8 clasp joints; Loam cake 2 is provided with two projections 21, on the base 1 corresponding be provided with two hold projection 21 shrinkage pool 11.Button 3 lower end sidepieces are provided with the projection 31 that can push dwang 7.

When button 3 is not pressed, under extension spring 8 effects, movable contact spring 6 and dwang 7 are horizontal, the moving contact 61 of movable contact spring 6 contacts with the fixed contact 51 of the leading-out terminal 5 of upside; When button 3 was pressed, movable contact spring 6 made moving contact 61 contact with the fixed contact 51 of the leading-out terminal 5 of downside to lower swing when the projection 31 extruding dwangs 7 of button 3 were upwards swung dwang 7.

Claims

1. a novel sensitive switch comprises the leading-out terminal of base, loam cake, button, public terminal, drive fixed contact, the movable contact spring and the dwang of drive contact, and public terminal links to each other with dwang with movable contact spring respectively; It is characterized in that: be provided with an extension spring between said movable contact spring and the dwang, extension spring one end hook is connected on the movable contact spring, and other end clasp joint is on dwang.

2. a kind of novel sensitive switch according to claim 1 is characterized in that: said public terminal one end is provided with two support arms, forms a draw-in groove between two support arms, and dwang is connected in the draw-in groove.

3. a kind of novel sensitive switch according to claim 2 is characterized in that: said two support arm inboards are provided with V-shaped groove, on the movable contact spring corresponding be provided with two with the contacted bending sheet of V-shaped groove.

4. a kind of novel sensitive switch according to claim 1 is characterized in that: said movable contact spring one end is provided with first through hole with the extension spring clasp joint.

5. a kind of novel sensitive switch according to claim 1 is characterized in that: said dwang one end is provided with second through hole with the extension spring clasp joint.

6. according to the arbitrary described a kind of novel sensitive switch of claim 1 to 5, it is characterized in that: be covered with two projections on said, on the base corresponding be provided with two hold projection shrinkage pool.

7. a kind of novel sensitive switch according to claim 6 is characterized in that: said button lower end sidepiece is provided with the projection that can push dwang.

8. a kind of novel sensitive switch according to claim 7 is characterized in that: said public terminal has three roughly rectangular bendings, and the structure that is centrosymmetric; Public terminal also has four pins, and wherein two pins are fixed on the base, and two other pin is fixed on and covers.

9. a kind of novel sensitive switch according to claim 8, it is characterized in that: said leading-out terminal is planar structure, and is centrosymmetric; Leading-out terminal also has four pins, and wherein two pins are fixed on the base, and two other pin is fixed on and covers.

10. a kind of novel sensitive switch according to claim 9 is characterized in that: said loam cake is being provided with two parallel grooves with button contact position one side.