CN103681053A

CN103681053A - Downwards-pushing-type power switch

Info

Publication number: CN103681053A
Application number: CN201310704707.6A
Authority: CN
Inventors: 秦从青
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-20
Filing date: 2013-12-20
Publication date: 2014-03-26
Anticipated expiration: 2033-12-20
Also published as: CN103681053B

Abstract

The invention discloses a downwards-pushing-type power switch which comprises a shell, a first contact pin, a second contact pin and a pushing rod. The first contact pin and the second contact pin are arranged at the bottom in the shell, the pushing rod is provided with a self-locking mechanism, the top of the shell is provided with a swing shaft extending to the bottom of the shell, a spring with a spring sleeve is connected to the swing shaft in a sleeved mode, and one end, extending into the shell, of the pushing rod is connected with the lower portion of the spring sleeve. The bottom end of the spring sleeve abuts against the upper surface of a contact chip arranged on the second contact pin. A movable contact is arranged on the contact chip, and a fixed contact is arranged at the corresponding position of the upper end face of the first contact pin. The downwards-pushing-type power switch is simple in structure, reliable in transmission mode, fewer in part and convenient to assemble, the material cost is reduced, the production processes are reduced, and the production efficiency of the power switch is greatly improved.

Description

A kind of down-push type mains switch

Technical field

The present invention relates to a kind of electric switch, be specifically related to a kind of down-push type mains switch.

Background technology

Switch refers to that one can make open circuit, makes current interruptions or make its electronic component that flows to other circuit, can be divided into sensitive switch according to structure, ship type switch, toggle switch, toggle switch, push-button switch, key switch etc.The household electrical appliance such as television set, DVD, water dispenser mainly adopt ship type switch or push-button switch; There is a sheet metal existing rocker type switch inside, there is fulcrum of spring centre, spring swings on sheet metal, realize the moving contact of sheet metal and switching on and off of haptic element, use procedure medi-spring no matter the state of still closing at switch open under all in compression state, distortion makes spring easily tired for a long time, causes switch short useful life.

Push-button switch is to utilize button to promote transmission mechanism, makes moving contact and fixed contact by on-off, drive and realize the switch of circuit changing-over.The complicated mechanism of existing push-button switch, assembles a switch and probably need to expend about half an hour, and on-off action all can cause moving contact to clash into haptic element each time in use, can cause haptic element horizontal looseness, long-time use can cause haptic element displacement, switch loose contact, and useful life is shorter; In addition, the point of application of existing push-button switch is positioned at the top of transmission mechanism, need to expend larger power and just can press the button during use, uses inconvenient.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of down-push type mains switch, simple in structure, easy to assembly, has reduced production cost, laborsaving and the life-span is long during use.

The present invention is achieved through the following technical solutions:

A kind of down-push type mains switch, comprise housing, and first, second haptic element that is located at housing inner bottom part, also comprise from housing one side put in housing, can do horizontal reciprocating movement, with the push rod of self-locking mechanism, the top of described housing is provided with the balance staff extending to housing bottom, on described balance staff, socket is with the spring of spring housing, and described push rod puts in one end of described enclosure interior and the bottom of described spring housing is connected; The bottom of described spring housing offsets with the upper surface that is arranged on the contact chip on described the second haptic element; Described contact chip is provided with moving contact, and the upper surface correspondence position of described the first haptic element is provided with fixed contact.

The further improvement project of the present invention is, the top of described housing is provided with opening, and described balance staff upper periphery is symmetrically arranged with card convex, and the draw-in groove that described card convex and described case top opening sidewalls are provided with is connected, and realizes the swing of balance staff.

Further improvement of the present invention scheme is that the downward projection of described card convex is between first, second haptic element.

Further improvement of the present invention scheme is, the link of described push rod and spring housing is provided with balance staff hole, and balance staff hole hoop is in the bottom of described spring housing.

Further improvement of the present invention scheme is, the side-looking projection of described contact chip is the arc that two ends are upturned, and described contact chip medium position is connected to the upper end of described the second haptic element.

Further improvement of the present invention scheme is, at the bottom of the arc of described contact chip medium position, dual-side is provided with bayonet socket, and described the second haptic element upper end correspondence position is provided with card column, both activity clampings.

Further improvement of the present invention scheme is, one end of described contact chip is provided with horizontally extending platform, the other end is provided with the limiting section to downward-extension, and described moving contact is fixed on described platform, at the bottom of the arc of the end of described limiting section a little less than contact chip.

Further improvement of the present invention scheme is, when described push rod is positioned at initial position, described balance staff tilts to form the first inclination angle to the limiting section place end on described contact chip, when described push rod puts in the interior self-locking of described housing, described balance staff tilts to form the second inclination angle to the moving contact place end on described contact chip, and described the first inclination angle is greater than described the second inclination angle.

Further improvement of the present invention scheme is that, when reach at described the first inclination angle, the end of described limiting section props up housing bottom inwall; When reach at described the second inclination angle, described moving contact and described fixed contact fit tightly.

Further improvement of the present invention scheme is that described housing upper cover is stamped cover plate.

Compared to the prior art, the present invention has the following advantages:

One, the present invention is simple in structure, push rod drives the balance staff band moving contacting plate of vacillating now to the left, now to the right on contact chip to upwarp and move down, realize being switched on or switched off of moving contact and fixed contact, the kind of drive is reliable, parts are few, easy to assembly, reduce cost of material and production process, greatly improve the production efficiency of mains switch.

Two, the spring long service life of balance staff of the present invention, when push rod pushes in housing completely, switch connection, balance staff now slightly tilts to place, dynamic and static contact end, spring on balance staff is in impaction state, guarantee fitting tightly of dynamic and static contact, when push rod resets, balance staff swings to relative one end with push rod and then band moving contacting plate tilts to this end, now spring is in the state not being squeezed or extruding force is less, delay the fatigue of spring, and then in use extended the useful life of spring.

Three, moving contact of the present invention be positioned at fixed contact directly over, under the drive of transmission mechanism, push from top to bottom fixed contact, can not cause the horizontal displacement of haptic element, and then be difficult for while guaranteeing stable uses of haptic element looseningly, prevent the not exclusively phenomenon of generation loose contact of dynamic and static contact contact.

Accompanying drawing explanation

Fig. 1 is internal structure schematic diagram of the present invention.

Fig. 2 contact chip of the present invention is connected vertical view with antenna secunda.

Embodiment

a kind of down-push type mains switch as shown in Figure 1, 2, comprise housing 1, and first, second

haptic element

2,21 that is located at housing 1 inner bottom part, also comprise from can do in housing 1 one sides put in housing 1 horizontal reciprocating movement, identical with the structure of the serial push-button switch of A10 on the market with the push rod 4(of self-locking mechanism push rod 4 herein), the top of described housing 1 is provided with the balance staff 5 extending to housing 1 bottom, on balance staff 5, socket is with the spring 52 of spring housing 51, and one end that push rod 4 puts in housing 1 inside is connected with the bottom of spring housing 51; The bottom of spring housing 51 offsets with the upper surface that is arranged on the contact chip 6 on the second haptic element 21; The upper surface correspondence position that contact chip 6 is provided with moving contact 31, the first haptic elements 2 is provided with fixed contact 3, and housing 1 upper cover is stamped cover plate 7.

In the present embodiment, the top of housing 1 is provided with opening, and balance staff 5 upper periphery are symmetrically arranged with card convex 8, and card convex 8 is connected with the draw-in groove that housing 1 open top sidewall is provided with, and then realizes the swing of balance staff 5.Wherein, the downward projection of card convex 8 is between first, second

haptic element

2,21.

Still as shown in Figure 1, 2, push rod 4 is provided with balance staff hole 41 with the link of spring housing 51, and balance staff hole 41 hoops, in the bottom of spring housing 51, promote like this push rod 4 and just can drive balance staff 5 to vacillate now to the left, now to the right.

Still as shown in Figure 1, 2, the side-looking projection of contact chip 6 is the arc that two ends are upturned, and contact chip 6 medium positions are connected to the upper end of the second haptic element 21; At the bottom of the arc of contact chip 6 medium positions, dual-side is provided with bayonet socket 81, the second haptic element 21 upper end correspondence positions and is provided with card column 82, and both activity clampings can be around card column tilting Shang Xia 82.; One end of contact chip 6 is provided with horizontally extending platform 61, the other end is provided with the limiting section 62 to downward-extension, and moving contact 31 is fixed on platform 61, at the bottom of the arc of the end of limiting section 61 a little less than contact chip 6.

When push rod 4 of the present invention is positioned at initial position, balance staff 5 tilts to form the first inclination angle to the limiting section 62 place ends on contact chip 6, when push rod 4 puts in housing 1 interior self-locking, balance staff 5 tilts to form the second inclination angle to the moving contact 31 place ends on contact chip 6, and the first inclination angle is greater than the second inclination angle; Such design makes the long service life of spring 52, when push rod 4 pushes housing 1 switch connection when interior completely, balance staff 5 now slightly tilts to place, dynamic and static contact end, spring 52, in impaction state, guarantees fitting tightly of dynamic and

static contact

31,3, when push rod 4 resets, balance staff 5 swings to relative one end with push rod 4 and then band moving contacting plate 6 disconnects to this end tilt switch, now spring 52, in the state not being squeezed or extruding force is less, has delayed the fatigue of spring, and then has increased the service life.

When reach at the first inclination angle, the end of limiting section 4 props up housing 1 bottom interior wall, and moving contact 31 and fixed contact 3 separating switch are in off-state; When reach at the second inclination angle, moving contact 31 fits tightly with fixed contact 3, switch connection.

Claims

1. a down-push type mains switch, comprise housing (1), and be located at first of housing (1) inner bottom part, the second haptic element (2, 21), also comprise from housing (1) one side and put in and can do horizontal reciprocating movement in housing (1), push rod (4) with self-locking mechanism, it is characterized in that: the top of described housing (1) is provided with the balance staff (5) extending to housing (1) bottom, the upper socket of described balance staff (5) is with the spring (52) of spring housing (51), described push rod (4) puts in the inner one end of described housing (1) and is connected with the bottom of described spring housing (51), the bottom of described spring housing (51) offsets with the upper surface that is arranged on the contact chip (6) on described the second haptic element (21), described contact chip (6) is provided with moving contact (31), and the upper surface correspondence position of described the first haptic element (2) is provided with fixed contact (3).

2. a kind of down-push type mains switch as claimed in claim 1, it is characterized in that: the top of described housing (1) is provided with opening, described balance staff (5) upper periphery is symmetrically arranged with card convex (8), described card convex (8) is connected with the draw-in groove that described housing (1) open top sidewall is provided with, and realizes the swing of balance staff (5).

3. a kind of down-push type mains switch as claimed in claim 2, is characterized in that: the downward projection of described card convex (8) is positioned between first, second haptic element (2,21).

4. a kind of down-push type mains switch as claimed in claim 1, is characterized in that: described push rod (4) is provided with balance staff hole (41) with the link of spring housing (51), and balance staff hole (41) hoop is in the bottom of described spring housing (51).

5. a kind of down-push type mains switch as claimed in claim 1, is characterized in that: the side-looking projection of described contact chip (6) is the arc that two ends are upturned, and described contact chip (6) medium position is connected to the upper end of described the second haptic element (21).

6. a kind of down-push type mains switch as claimed in claim 5, is characterized in that: at the bottom of the arc of described contact chip (6) medium position, dual-side is provided with bayonet socket (81), and described the second haptic element (21) upper end correspondence position is provided with card column (82), both activity clampings.

7. a kind of down-push type mains switch as described in claim 5 or 6, it is characterized in that: one end of described contact chip (6) is provided with horizontally extending platform (61), the other end is provided with the limiting section (62) to downward-extension, it is upper that described moving contact (31) is fixed on described platform (61), at the bottom of the arc of the end of described limiting section (61) a little less than contact chip (6).

8. a kind of down-push type mains switch as claimed in claim 7, it is characterized in that: when described push rod (4) is positioned at initial position, described balance staff (5) tilts to form the first inclination angle to limiting section (62) the place end on described contact chip (6), when described push rod (4) puts in the interior self-locking of described housing (1), described balance staff (5) tilts to form the second inclination angle to moving contact (31) the place end on described contact chip (6), and described the first inclination angle is greater than described the second inclination angle.

9. a kind of down-push type mains switch as claimed in claim 8, is characterized in that: when reach at described the first inclination angle, the end of described limiting section (4) props up housing (1) bottom interior wall; When reach at described the second inclination angle, described moving contact (31) fits tightly with described fixed contact (3).

10. a kind of down-push type mains switch as claimed in claim 1, is characterized in that: described housing (1) upper cover is stamped cover plate (7).