CN201307548Y

CN201307548Y - Switch structure of potentiometer

Info

Publication number: CN201307548Y
Application number: CNU2008202046546U
Authority: CN
Inventors: 郭志新; 欧阳辉
Original assignee: DONGGUAN LINYUAN INDUSTRY Co Ltd
Current assignee: Dongguan Linyve Industry Investments Co., Ltd.
Priority date: 2008-12-05
Filing date: 2008-12-05
Publication date: 2009-09-09
Anticipated expiration: 2018-12-05

Abstract

The utility model relates to the technical field of a potentiometer, in particular to a switch structure of the potentiometer. The switch structure comprises a plastic covered switch body, a plastic covered switch, a torsion spring, a plastic rotating body and a switch upper cover; wherein the plastic covered switch body is composed of a switch lower cover and a switch terminal, and the plastic covered switch is composed of a contact transfer strip and a plastic latch; the switch terminal is embedded in the switch lower cover and plastically covered to form the plastic covered switch body, and divided into a broken switch left terminal and a broken switch right terminal by punching molding; the switch right terminal is extended with a convex column; the contact transfer strip is embedded in the plastic latch to form the plastic covered switch, and extended with a convex cylinder; the plastic covered switch is sleeved with the convex column of the switch right terminal by the convex cylinder; one end of the torsion spring is fixed with a trepanning of the plastic covered switch body as a fulcrum, and the other end thereof is connected with a locating hole of the plastic covered switch; and the plastic rotating body is rotatably contacted with the plastic latch to complete switch transfer. The structure does not need riveting, and the assembly is convenient, therefore the cost is lowered, and the switch transfer performance is effectively ensured.

Description

The potentiometer switch structure

Technical field:

The utility model relates to the potentiometer technical field, relates in particular to the potentiometer switch structure.

Background technology:

Potentiometer is usually used in volume, the tonequality adjustment of equipment such as broadcast receiver, intercom, power amplifier, hearing aids, sound equipment, and the rate adaptation of the speed of toy product, direction adjusting and Medical Devices etc.Existing potentiometer switch structure, generally by Switch main body (undertaken plastic and form), contact transfer strip, plastic cement by switch terminal stir son, torque spring, metal rivet (as copper rivet), plastic cement is turned and the switch loam cake is formed.In the switch terminal flush switch lower cover and encapsulate form Switch main body, by the high copper rivet of conductance switch terminal, contact transfer strip and plastic cement being stirred son again is riveted together, form a gapped organic whole, the contact transfer strip is stirred son with plastic cement and also is connected with Switch main body by torque spring, the rotation that utilizes plastic cement to turn then drives the handoff functionality of realizing switch, and its energising performance is by realizing by the copper rivet, contact transfer strip and the switch terminal that link together.This potentiometer switch structure, because the part with the copper rivet riveted joint is more, the control of tolerance is difficulty comparatively, to riveted require high, and the situation that in the riveted process, is easy to generate the riveting pine or rivets tightly, the riveting pine makes torque spring easily break away from and makes switch move, and rivets tightly to make switch switch to have some setbacks that being easy to generate the dead point maybe can't switch; Simultaneously, connect riveted because copper rivet is directly stirred substring with switch terminal and plastic cement, when last soldering connect, plastic cement was stirred son and is produced distortion because of directly being heated, and clinged on rivet thereby make plastic cement stir son, and the generation switching is bad.

The utility model content:

The purpose of this utility model is at the deficiencies in the prior art, and a kind of potentiometer switch structure is provided, and this potentiometer switch structure need not riveted, and is easy to assembly, can ensure the switch performance of handoffs effectively.

For achieving the above object, the utility model is achieved through the following technical solutions: the potentiometer switch structure, comprise the plastic Switch main body formed by switch lower cover and switch terminal, transfer strip and plastic cement are stirred molecular plastic switch, torque spring, plastic cement is turned and the switch loam cake by contacting, in the described switch terminal flush switch lower cover and encapsulate form plastic Switch main body, the switch terminal punching molding is separated into the switch left terminal and the switch right terminal of disconnection, and the switch right terminal stretches projection; Described contact transfer strip is nested into plastic cement and stirs plastic switch of son formation, the contact transfer strip stretches protruding tube, plastic cement is stirred son and is offered the trepanning that connects with protruding jacket casing, described plastic switch is by the protruding tube of contact transfer strip and the projection socket of switch right terminal, torque spring one end and plastic Switch main body one trepanning are fixed as fulcrum, the torque spring other end is connected with plastic switch one location hole, plastic cement is turned and is located on the counterbore of plastic Switch main body center, and plastic cement is turned and is stirred son with the plastic cement of plastic switch and rotate and to touch, and forms switch and switches; Form a fixing height gap space by switch loam cake and plastic Switch main body socket.

The projection of described switch right terminal is circular projection, and the protruding tube of contact transfer strip is circular protruding tube, and the trepanning that plastic cement is stirred son is circular trepanning.

Described switch lower cover offers the groove area that is used for the setting-in switch terminal, is provided with the left projection that is used for the socket switch left terminal in the groove area, also is provided with the right projection that is used for the socket switch right terminal in the groove area.

Described switch lower cover also offers spring eye, and torque spring one end is located on the spring eye and is connected with the switch lower cover.

The interlude of described torque spring is an arc body.

Described plastic cement is stirred son and is rotated the place of touching and offer groove turning with plastic cement, and described plastic cement is turned and is provided with the boss that matches with groove stirring the son rotation place of touching with plastic cement.

The bossed left signal input of described switch left terminal punch forming, the bossed right signal input of described switch right terminal punch forming.

Described switch loam cake and the socket of switch lower cover form the height gap space.

Described switch lower cover offers the installing hole of turning down, and the switch loam cake offers to turn goes up installing hole, and the lower end that plastic cement is turned is plugged in the installing hole of turning down, and the upper end that plastic cement is turned is plugged in to turn and goes up in the installing hole.

The utility model beneficial effect is: the switch terminal punching molding of the utility model potentiometer switch structure is separated into the switch left terminal and the switch right terminal of disconnection, and the switch right terminal stretches projection; Described contact transfer strip is nested into plastic cement and stirs plastic switch of son formation, the contact transfer strip stretches protruding tube, plastic cement is stirred son and is offered the trepanning that connects with protruding jacket casing, described plastic switch is by the protruding tube of contact transfer strip and the projection socket of switch right terminal, torque spring one end and plastic Switch main body one trepanning are fixed as fulcrum, the torque spring other end is connected with plastic switch one location hole, plastic cement is turned and is located on the counterbore of plastic Switch main body center, and plastic cement is turned and is stirred son with the plastic cement of plastic switch and rotate and to touch, and forms switch and switches; Adopt the potentiometer switch structure of this structure, socket mutually need not riveted between part, and is easy to assembly, can ensure the switch performance of handoffs effectively.

Description of drawings:

Fig. 1 is a decomposition texture schematic diagram of the present utility model;

Fig. 2 is for using the potentiometer schematic diagram of the utility model potentiometer switch structure.

Embodiment:

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

As shown in Figure 1, the potentiometer switch structure comprises that switch lower cover 1, switch loam cake 7, switch terminal 2, contact transfer strip 4, plastic cement stir son 5, torque spring 3 and plastic cement and turn 6.In the switch terminal 2 flush switch lower covers 1 and encapsulate form plastic Switch main body, switch terminal 2 punching molding are separated into the switch left terminal 21 and the switch right terminal 23 of disconnection, switch right terminal 23 stretches projection 24 is arranged, contact transfer strip 4 stretches protruding tube 41, plastic cement is stirred son 5 and is offered trepanning 51, described contact transfer strip 4 is by projection 24 sockets of protruding tube 41 with switch right terminal 23, plastic cement is stirred son 5 by trepanning 51 and protruding tube 41 sockets that contact transfer strip 4, torque spring 3 one ends are connected with switch lower cover 1, the plastic cement that torque spring 3 other ends pass plastic switch is stirred son 5 and is attached thereto, the interlude of torque spring 3 is an arc body, plastic cement is stirred son 5 and is formed switch handoff functionality parts with torque spring 3, plastic cement is turned and 6 is located on the switch lower cover 1 of plastic Switch main body and plastic cement is turned and 6 stirred son 5 with plastic cement and rotate and touch, and switch loam cake 7 is pegged graft with switch lower cover 1 and formed the flexibility of rational height gap space to guarantee to switch.The projection 24 of described switch right terminal 23 is circular projection, and the protruding tube 41 of contact transfer strip 4 is circular protruding tube, and the trepanning 51 that plastic cement is stirred son 5 is circular trepanning, and projection 24, protruding tube 41 and trepanning 51 also can be other shape.Switch lower cover 1 offers the groove area 14 that is used for setting-in switch terminal 2, is provided with the left projection 12 that is used for socket switch left terminal 21 in the groove area 14, also is provided with the right projection 13 that is used for socket switch right terminal 23 in the groove area 14.Switch lower cover 1 also offers spring eye 15, and torque spring 3 one ends are located on the spring eye 15 and are connected with switch lower cover 1.Plastic cement is stirred

son

5 and 6 is rotated the places of touching and offer groove 52 turning with plastic cement, and plastic cement is turned and 6 is provided with the boss 61 that matches with groove 52 stirring the son 5 rotation places of touching with plastic cement.The bossed left signal input 22 of switch left terminal 21 punch formings, the bossed right signal input 25 of switch right terminal 23 punch formings.Switch lower cover 1 offers the installing hole 11 of turning down, and switch loam cake 7 offers to turn goes up installing hole 71, and turn 6 lower end of plastic cement is plugged in the installing hole 11 of turning down, plastic cement turn 6 upper end be plugged in turn in the installing hole 71.

During use, rotate plastic cement by external force and turn 6, turn plastic cement that 6 boss 61 acts on plastic switch of plastic cement is stirred the groove 52 of son 5, drive plastic cement and stir son 5 rotations, thereby the right signal input 25 of the left signal input 22 of contact-making switch left terminal 21 or switch right terminal 23 carries out switch and switches.The utility model produces the energising performance by the body of switch right terminal 23 projections 24 with platform and the contact that contacts transfer strip 4.Therefore, the utility model need not riveted, and is easy to assembly, can ensure the switch performance of handoffs effectively, reduce cost, simultaneously owing to adopt metallic stamping pieces socket contacting structure, the energy bearing temperature is up to 400 ℃, and the time is 5 seconds welding heat, has ensured the applicability of production technology.

Figure 2 shows that the potentiometer that uses the utility model potentiometer switch structure, be made up of axle core 9, potentiometer 8, potentiometer switch structure 10 etc. to have simple in structurely, easy to assembly, cost is lower, the advantage that the switch performance of handoffs is good.

The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1, potentiometer switch structure, comprise the plastic Switch main body formed by switch lower cover (1) and switch terminal (2), stir plastic switch, torque spring (3), the plastic cement that son (5) forms and turn (6) and switch loam cake (7) by contacting transfer strip (4) and plastic cement, in described switch terminal (2) the flush switch lower cover (1) and encapsulate form plastic Switch main body, it is characterized in that: switch terminal (2) punching molding is separated into the switch left terminal (21) and the switch right terminal (23) of disconnection, and switch right terminal (23) stretches projection (24); Described contact transfer strip (4) is nested into plastic cement and stirs plastic switch of son (5) formation, contact transfer strip (4) stretches protruding tube (41), plastic cement is stirred son (5) and is offered trepanning (51) with (41) socket of protruding tube, described plastic switch is by the protruding tube (41) of contact transfer strip (4) and projection (24) socket of switch right terminal (23), torque spring (3) one ends and plastic Switch main body one trepanning are fixed as fulcrum, torque spring (3) other end is connected with plastic switch one location hole, plastic cement turn (6) be located on the counterbore of plastic Switch main body center, and the turn plastic cement of (6) and plastic switch of plastic cement is stirred son (5) and is rotated and touch, and forms switch and switches; Form a fixing height gap space by switch loam cake (7) and plastic Switch main body socket.

2, potentiometer switch structure according to claim 1, it is characterized in that: the projection (24) of described switch right terminal (23) is circular projection, the protruding tube (41) of contact transfer strip (4) is circular protruding tube, and the trepanning (51) that plastic cement is stirred son (5) is circular trepanning.

3, potentiometer switch structure according to claim 1, it is characterized in that: described switch lower cover (1) offers the groove area (14) that is used for setting-in switch terminal (2), be provided with the left projection (12) that is used for socket switch left terminal (21) in the groove area (14), also be provided with the right projection (13) that is used for socket switch right terminal (23) in the groove area (14).

4, potentiometer switch structure according to claim 3 is characterized in that: described switch lower cover (1) also offers spring eye (15), and torque spring (3) one ends are located in spring eye (15) and upward are connected with switch lower cover (1).

5, potentiometer switch structure according to claim 4 is characterized in that: the interlude of described torque spring (3) is an arc body.

6, potentiometer switch structure according to claim 5, it is characterized in that: described plastic cement is stirred son (5) and is rotated the place of touching in turn with plastic cement (6) and offer groove (52), described plastic cement turn (6) be provided with the boss (61) that matches with groove (52) stirring son (5) the rotation place of touching with plastic cement.

7, potentiometer switch structure according to claim 6 is characterized in that: the bossed left signal input of described switch left terminal (21) punch forming (22), the bossed right signal input of described switch right terminal (23) punch forming (25).

8, according to each described potentiometer switch structure of claim 1 to 7, it is characterized in that: described switch loam cake (7) forms the height gap space with switch lower cover (1) socket.

9, potentiometer switch structure according to claim 8, it is characterized in that: described switch lower cover (1) offers the installing hole of turning down (11), switch loam cake (7) offers to turn goes up installing hole (71), the turn lower end of (6) of plastic cement is plugged in the installing hole of turning down (11), and the turn upper end of (6) of plastic cement is plugged in to turn and goes up in the installing hole (71).