CN2438215Y

CN2438215Y - Electric switch

Info

Publication number: CN2438215Y
Application number: CN 00238033
Authority: CN
Inventors: 何忠孝
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-23
Filing date: 2000-08-23
Publication date: 2001-07-04
Anticipated expiration: 2010-08-23

Abstract

The utility model discloses an electric switch, composed of a base, a surface cover, a spring, a button, a movable convex element, a fixed contact piece, a movable contact piece and a wire connecting terminal. The movable contact piece is rotationally connected with the base through a positioning shaft, the movable contact piece which is elastically pressed by the movable convex element can swing by taking the positioning shaft as a fulcrum, and the movable contact piece wafer is connected with the wire connecting terminal through a flexible conducting wire. In addition, the surface cover can also be composed of a panel frame and a stand frame. The switch can realize the fixed-point contact of contacts by using the movable contact piece with a positioning shaft, so that the generation of electric arcs can be prevented. The utility model has the advantages of safe use, and convenient assembly and disassembly. The switch which is provided with a main and an auxiliary buttons is suitable for being used as an alarm, and is especially suitable for various electrical equipment.

Description

A kind of electric switch

The utility model relates to a kind of mains switch.

At present, its movable contact spring of the electric switch of selling on the market generally all is iron or copper sheet, is placed on the columniform conductive pole, by button, spring, lug movable contact spring is dragged back and forth on conductive pole, thereby realization contacts and separating action with fixed touching plate, finishes the power on/off of switch.Owing to be subjected to the influence of spring, lug, when movable contact spring dragged at every turn back and forth, the position that is arrived cannot say for sure that all card is consistent, and randomness is bigger, therefore be difficult to guarantee that movable contact spring and fixed touching plate at every turn can both the contact be stablized ground, contact contacts, sometimes the appearance phenomenon that can't contact also.Simultaneously, when movable contact spring slides in the process that drags, be easy to produce arc spark on charged conductive pole, can burn switch when serious, cause potential safety hazard, shorten switch useful life.In addition, the design of the cover of switch pedestal is reasonable inadequately, dismounting inconvenience when installation, maintenance.

The purpose of this utility model provides to fix a point in a kind of contact and contact stably, good conductivity, safe in utilization, electric switch that the life-span is long.

The purpose of this utility model can reach by following measure: this electric switch mainly is made up of the base of switch, cover, spring, button, movable tappet, fixed touching plate, movable contact spring etc., it is characterized in that: described movable contact spring has locating shaft, and by locating shaft and base for being rotationally connected, movable contact spring is suppressed by movable tappet and is a spot wobble with locating shaft; Movable contact spring is connected by flexible conductor with binding post.

As further improvement of the utility model, the button of this electric switch is divided into main button and secondary button, respectively has a projection to be connected with spring with movable contact spring respectively on the major and minor button, and major and minor button is arranged vertically mutually across, press main button, two projections obvolvent alternately are stuck.Pressing of described button has a groove on the face, this groove is circular, square, oval or other are irregularly shaped.

As further improvement of the utility model, the cover of this electric switch comprises panel frame and stand frame, panel frame and stand frame are by the active card feather joint or by fixing trip and at least 1 's active card feather joint, movable trip is made of tappet and spring, is arranged in the intercommunicating pore of panel frame and stand frame one side.Described cover has at least 2 frame holes, constitutes unit switch frame hole.On the described stand frame binding post is arranged.In addition, the base of this electric switch at least can compatible 2 electric switches or a switch and a socket, becomes a disjunctor base, arranges about electric switch and socket are.The surface of the contact of fixed, the movable contact spring of this electric switch is coated with the alloy of metallic gold or platinum or gold, platinum.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is the structural representation of a kind of execution mode of the utility model electric switch;

Fig. 2 is the structural representation of the another kind of execution mode of the utility model electric switch;

Fig. 3 is the electric switch structure schematic diagram after button of the present utility model improves;

Fig. 4 is the schematic diagram after the cover of the utility model electric switch amplifies;

Fig. 5 is the A-A cutaway view of cover in Fig. 3 of the utility model electric switch.

In Fig. 1, show wherein a kind of execution mode of electric switch, the both sides of base 1 respectively are provided with a fixed touching plate 6, movable contact spring 7 vertically is installed on the base by the locating shaft 9 on top therein, movable contact spring can swing around locating shaft, both sides, movable contact spring lower end respectively have the contact corresponding with the contact on two fixed touching plates respectively, there is inner concave the upper end of movable contact spring, adapt with the convex surface of movable tappet 5, the interior spring 3 that also passes through of groove that button 4 is imbedded in the upper end of movable tappet is connected with button, makes movable tappet suppress the upper end at movable contact spring all the time.Because movable contact spring need swing constantly, therefore be connected with binding post 8 by flexible conductor 10, with the stability that guarantees to conduct electricity, and fixed touching plate directly is connected with binding post.When toward the bottom right on time button, pulling jointly down of spring and movable tappet, the lower end of movable contact spring will be put toward the right, the contact on its right side is just accurately contacted with the fixed touching plate contact on the right, thereby reached the contact can stablize the effect that contacts point-to-pointly with the contact, on the contrary, when button toward the lower-left on time, then the contact in movable contact spring left side will contact with the fixed touching plate contact on the left side.Therefore, this switch also can be used as the ganged switch use.

Figure 2 illustrates the another kind of execution mode of electric switch, different with Fig. 1 is that movable contact spring is laterally placed, locating shaft 9 is located at the middle part of movable contact spring, movable contact spring can be that fulcrum swings up and down with the locating shaft, the contact at its two ends respectively with about the corresponding contact in contact of two fixed touching plates, movable tappet places the top of locating shaft and suppresses upper surface at movable contact spring, and movable contact spring also is to be connected by flexible conductor 10 with binding post.When pressing button, its operation principle is the same with electric switch shown in Figure 1.

Schematic diagram after the button 4 that figure 3 illustrates the utility model electric switch improves, button is divided into main button 41 and secondary button 42, the projection 11 of main button end is connected with movable contact spring, the projection 11 of secondary button end is connected with spring, main, secondary button is arranged vertically mutually across, when pressing main button, the projection of main button moves down, originally the secondary button that was pressed on the main button projection moves to left under the spring force effect, at this moment two projections obvolvent alternately also is stuck, become main button projection and be pressed on the projection of secondary button, promptly block on the main button and move, it is fixed to realize, movable contact spring contact galvanization, if press secondary button this moment, two projections separate, and main button moves under the spring force effect, return extensive original off-position.Since the switch used of most of alarm all exist button pressed after, its to return extensive original state and stop to report to the police and but will take very big strength and could disconnect switch, if utilize above-mentioned switch just to be easy to address this problem with major and minor button.

For labeled button, with the electric equipment of seeing clearly that conveniently each button is controlled, can establish a groove on the face the pressing of button of the foregoing description, this groove can stick respective labels at this groove and just can achieve the goal for circular, square, oval or other are irregularly shaped.

The schematic diagram of the cover 2 of electric switch has been shown in Fig. 4 and Fig. 5, cover is made of panel frame 12 and stand frame 13, fix by movable trip between panel frame and the stand frame and be connected, movable trip is made up of the tappet 15 and the spring 3 of plunger shape, and be installed in the intercommunicating pore of panel frame and stand frame, panel frame and stand frame install and fix or just can be by realizing easily in the through hole that tappet 13 is pressed into stand frame when breaking like this.Certainly also can only use 1 movable trip all the other then with fixing trip 14, can be beneficial to equally and install and fix or break, when having avoided dismounting inconvenient to the damage of cover or body of wall etc.Simultaneously, on stand frame, also be provided with fusing fuse holder (not shown), be beneficial to the replacing of fuse and make cover more apparent attractive in appearance.Also be provided with the binding post (not shown) on the stand frame, to make things convenient for wiring between input lead and switch, the socket.In addition, cover has the frame hole more than 2 or 2, constitutes unit switch frame hole, and purpose is when a plurality of switches together the time, makes more compact structure and economical with materials.

For the deficiency of a switch one base that changes regular tap, the base of this electric switch can have 2 switches simultaneously, even more a plurality of switches are arranged, and all is the disjunctor shape, and 2 or more a plurality of independently switch element promptly can be arranged on a base.Because switch and socket often are used in combination together, therefore, all right compatible switch of base and a socket are arranged about switch and socket are, on a cover, be a first from left when promptly being installed in body of wall or other stationary planes and arrange rightly, can make things convenient for daily use like this.

Resistance to wear fixed in order to increase, movable contact spring, to prolong its useful life, the contact table fixed, movable contact spring of electric switch also is coated with layer of metal gold or platinum, perhaps the alloy of gold, platinum.

Owing to utilized the movable contact spring of band locating shaft, make the contact accurately and stably to contact, avoid arc spark to produce, eliminate disaster hidden-trouble, thereby prolong its useful life, safe in utilization.The panel frame of switch cover and stand frame have adopted the active card feather joint to be easy for installation and removal greatly, can not cause sled to hinder to cover, and sharp stand frame also can be installed fusing fuse holder and binding post simultaneously, makes construction of switch more reasonable, and is easy to use.With the switch after the improvement of major and minor button, overcome the shortcoming of existing alarm switch, open and close operation and become very light.In addition, a switch pedestal can also be made the disjunctor shape of a plurality of independent switches, and the dilatation ability of switch is strengthened greatly, after adding contact surface plated with gold or platinum, more increased the useful life of switch, therefore, electric switch of the present utility model will have broad application prospects.

Claims

1. electric switch, mainly form by base (1), cover (2), spring (3), the movable tappet of button (4) (5), fixed touching plate (6), movable contact spring (7) and the binding post (8) of switch, it is characterized in that: described movable contact spring has locating shaft (9), and by locating shaft (9) and base for being rotationally connected, movable contact spring suppressed by movable tappet (5) and with locating shaft for propping up a spot wobble; Movable contact spring is connected by flexible conductor (10) with binding post.

2. electric switch according to claim 1, it is characterized in that: described button is divided into main button (41) and secondary button (42), respectively there is a projection (11) to be connected with spring with movable contact spring respectively on the major and minor button, major and minor button is arranged vertically mutually across, press main button, two projections obvolvent alternately are stuck.

3. according to claim 1 or 3 described electric switches, it is characterized in that: pressing of described button has a groove on the face, and this groove is circular, square, oval or other are irregularly shaped.

4. electric switch according to claim 1, it is characterized in that: described cover (2) comprises panel frame (12) and stand frame (13), panel frame and stand frame are by the active card feather joint or by fixing trip (14) and at least 1 's active card feather joint, movable trip is made of tappet (15) and spring (3), is arranged in the intercommunicating pore of panel frame and stand frame.

5. electric switch according to claim 4 is characterized in that: described cover has at least 2 frame holes, constitutes unit switch frame hole.

6. electric switch according to claim 4 is characterized in that: the stand frame of described cover is provided with the fusing fuse holder.

7. electric switch according to claim 4 is characterized in that: on the stand frame of described cover binding post is arranged.

8. electric switch according to claim 1 is characterized in that: described base at least can compatible 2 electric switches or a switch and a socket, becomes a disjunctor base.

9. electric switch according to claim 8 is characterized in that: arrange about described electric switch and socket are.

10. electric switch according to claim 1 is characterized in that: the surface of the contact of described fixed, movable contact spring is coated with the alloy of metallic gold or platinum or gold, platinum.