CN204884966U

CN204884966U - Push switch

Info

Publication number: CN204884966U
Application number: CN201520541195.0U
Authority: CN
Inventors: 林锡埼
Original assignee: ZHUHAI WEIDA ELECTRONICS CO Ltd
Current assignee: ZHUHAI WEIDA ELECTRONICS CO Ltd
Priority date: 2015-07-22
Filing date: 2015-07-22
Publication date: 2015-12-16
Anticipated expiration: 2025-07-22

Abstract

The utility model provides a push switch, it has two connecting terminal in the appearance room bottom location of pedestal, and have respectively in two connecting terminal and stretch into to the first contact site that holds room department of central authorities and the second contact site of locating around being located first contact site, and two connecting terminal punish with the opposite side of second contact site for first contact site and do not are equipped with first weld part and second weld part, and a plurality of electrically conductive shell fragment and the button of pressing the subassembly is acceptd by the indoor portion of the appearance of pedestal, and all has the portion of touching in department of electrically conductive shell fragment central authorities, and it is formed with electrical contact supporting on the second contact site outwards and holds the end to touch periphery department, furthermore, pedestal top surface goes up the basal portion that combines to have insulating film, and there is the button location in the cap portion of the central department in basal portion surface forms the storage tank, when press make the button receive the effect of supporting the pressure in cap portion after, just, can electrically conduct the touching the portion of shell fragment and support downwards and hold on connecting terminal's first contact site by the ejection, and form electric the connection with another connecting terminal.

Description

Push switch

Technical field

The utility model provides a kind of push switch, two splicing ears are positioned with bottom the room of espespecially pedestal empty internal, and multiple electroconductive elastic sheet and the button of press component is contained in compartment, and pedestal top surface is combined with the base portion of insulation film, then be formed with the storage tank can located for button in inside, the cap portion of base portion centre.

Background technology

The occupation mode of push switch is all push type control now, due to simple structure and manufacture on comparatively easy, so be widely used on various electronic product, as current Digiplex on the market, multimedia player and handheld game device etc., and the use of Switching power or signal control is carried out with push switch, and because design of electronic products is all towards gently, thin, short, little trend develops, make electronic components on electronic product and push switch also must with miniaturization, to meet the actual application of electronic product, and the person of being easy to use portably uses.

And existing push switch is that place is provided with multiple clamping block around the accommodation space of pedestal inside, and terminal group is equipped with bottom accommodation space, and be sequentially provided with electric conductor above terminal group, elastomer and pressure cap body, pedestal outside has then covered a housing, the mutual inlay card of clamping block corresponding with on pedestal for multiple clasp grooves of outside can be fixed, and by the plural flange of pressure cap body bottom side be embedded in respectively housing central authorities open-work internal face place clamping slot in after, top for pressure cap body is upwards piercing in housing through-hole position, when user presses on the top of pressure cap body downwards, the effect that its elastomer just can be compressed, and to be held in terminal group corresponding contact site by elastomer bottom ejection electric conductor and to form electrical connection.

But this elastomeric resilient supports to arrive in the inside in pressure cap body, the through-hole position of housing central authorities is upwards piercing in for pressure cap body, this kind of elastomer coordinates the height needed for pressure cap body effectively to reduce, and take the inner larger space of pedestal, and because elastomer is for be made up of silica gel material, the increase of its thickness will cause materials cost relatively to improve, and the assembling mode that each clasp groove of housing clamping block mutual inlay card corresponding with on pedestal is fixing, not only overall structure comparatively complexity to cause on Design of Dies comparatively inconvenience and difficulty, also can cause in assembling process and expend more man-hour and cost, and the height of this existing push switch entirety still cannot effectively reduce, this be engage in this journey dealer desire most ardently research improve key point.

Utility model content

Therefore, inventor is because the problem of above-mentioned prior art and disappearance, so collection related data is via assessment in many ways and consider, and utilize the research and development experience for many years engaging in the industry constantly to study and amendment, the utility model beginning to design this kind of push switch is born.

Main purpose of the present utility model is because the cap portion of the film that insulate is for slightly to protrude from base surface centre, not only structure is simple and can be convenient to manufacture and save materials cost, insulation film engages button also can be utilized effectively to reduce overall height and more miniaturized.

Secondary objective of the present utility model is when the button ejection of press component is when the touch part of electroconductive elastic sheet, just two mutual stacking formation one layered laminate of electroconductive elastic sheet can be relied on to increase overall structural elasticity, structural damage or destruction is not easily produced, to guarantee stability during overall pressing during electroconductive elastic sheet is subject to effect that button compresses.

Another object of the present utility model is when on the first contact site that the touch part of electroconductive elastic sheet is held in splicing ear, the surface area of its contact and the wear phenomenon caused of swiping is reduced by the groove between each first contact, and burr and metal fines etc. that CONTACT WITH FRICTION produces, and press component can be provided to have good pressing touch, the situation that poor electric contact or start also can be avoided to have some setbacks occurs.

An object more of the present utility model is that each corner pedestal top surface is positioned at around room is respectively equipped with location division, just the groove that the base portion bottom surface place of insulation film utilizes adhesive agent to be incorporated into location division in the mode of gummed can be become be integrated, can save to simplify manufacturing process as man-hour spent in inlay card fixed form Design of Dies and assembling process and cost.

For reaching above-mentioned purpose, the utility model provides a kind of push switch, includes pedestal, press component and insulation film, wherein:

The empty internal of this pedestal has the room of recess, and bottom room, be positioned with two splicing ears, and two splicing ears have the first contact site of stretching to room centre respectively and are positioned at place around the first contact site and form the second coated contact site of ring-type, and two splicing ears are respectively equipped with relative to the opposite side place of the first contact site and the second contact site the first weld part and the second weld part that expose to pedestal both sides place;

This press component includes and is contained in compartment and is positioned at the multiple electroconductive elastic sheet and button located above splicing ear, and in electroconductive elastic sheet face center place, all there is the touch part of upwards arching upward, and touch part peripheral region is formed with to be in electrical contact with the second contact site of splicing ear supports end, the first contact site that the touch part that the effect pusher pressed for button peaks at electroconductive elastic sheet is held in splicing ear forms electrical connection outwardly;

This insulation film has the base portion be incorporated on pedestal top surface, and is provided with in base surface centre the cap portion that Open Side Down, and inner being formed in cap portion is located for button and make to be separated out mutually between button with electroconductive elastic sheet the storage tank of a preset space length.

Described push switch, wherein: be provided with two terminal grooves bottom the room of this pedestal, and is positioned with the first contact site and second contact site of two splicing ears respectively in two terminal grooves.

Described push switch, wherein: the first contact site of the splicing ear of this pedestal has multiple first contacts of protrusion on the surface, and be formed with groove between each two adjacent first contacts, and the second contact site has multiple second contacts protruding and be positioned at each corner of room on the surface.

Described push switch, wherein: each corner this pedestal top surface is positioned at around room is respectively equipped with location division, and is all formed with the groove utilizing adhesive agent to be combined into one for insulation film bottom surface place in location division place.

The beneficial effects of the utility model are: not only structure is simple and can be convenient to manufacture and save materials cost, insulation film engages button also can be utilized effectively to reduce overall height and more miniaturized; Guarantee stability during overall pressing; Reduce surface area of its contact and the wear phenomenon that causes of swiping, and the burr that produce of CONTACT WITH FRICTION and metal fines etc., and press component can be provided to have good pressing touch, the situation generation that poor electric contact or start also can be avoided to have some setbacks; Simplify manufacturing process and can save as man-hour spent in inlay card fixed form Design of Dies and assembling process and cost.

Accompanying drawing explanation

Fig. 1 is stereo appearance figure of the present utility model;

Fig. 2 is three-dimensional exploded view of the present utility model;

Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model;

Fig. 4 is the front sectional elevation before the utility model pressing;

Fig. 5 is the front sectional elevation after the utility model pressing.

Description of reference numerals: 1, pedestal; 11, room; 111, terminal groove; 12, splicing ear; 121, the first contact site; 1211, the first contact; 1212, groove; 122, the second contact site; 1221, the second contact; 123, the first weld part; 124, the second weld part; 13, location division; 131, groove; 2, press component; 21, electroconductive elastic sheet; 211, touch part; 212, end is supported; 22, button; 3, insulate film; 31, base portion; 32, cap portion; 321, storage tank.

Embodiment

For reaching above-mentioned purpose and effect, the technological means that the utility model adopts and structure thereof, just preferred embodiment of the present utility model of hereby drawing illustrates that its structure is as follows with function, in order to understanding completely in detail.

Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, be respectively stereo appearance figure of the present utility model, three-dimensional exploded view, another visual angle three-dimensional exploded view, pressing before front sectional elevation and pressing after front sectional elevation, find out by knowing in figure, push switch of the present utility model includes pedestal 1, press component 2 and insulation film 3, wherein:

The empty internal of this pedestal 1 has the room 11 of recess, and bottom room 11, be provided with through two terminal grooves 111 to pedestal 1 outside, and two terminal groove 111 inner position have splicing ear 12, and two splicing ears 12 have the first contact site 121 of stretching to room 11 centre respectively and are positioned at the first contact site 121 surrounding place and form the second coated contact site 122 of ring-type, this first contact site 121 has multiple first contacts 1211 of protrusion on the surface, and groove 1212 is all formed between each two adjacent first contacts 1211, and the second contact site 122 has multiple second contacts 1221 protruding and be positioned at each corner of room 11 on the surface, to be respectively equipped with relative to the opposite side place of the first contact site 121 and the second contact site 122 in two splicing ears 12 again and to pass and expose to first weld part 123 and second weld part 124 at pedestal 1 both sides place, in addition, each corner pedestal 1 top surface is positioned at around room 11 is respectively equipped with location division 13, and is all formed with a groove 131 towards room 11 direction in location division 13 place, and is coated with adhesive agent in each groove 131.

This press component 2 includes and is contained in room 11 inside and the multiple electroconductive elastic sheet 21 of layered laminate and the button 22 that are positioned at place above splicing ear 12, and all there is in electroconductive elastic sheet 21 face center place the touch part 211 of upwards arching upward, and touch part 211 peripheral region is formed outwardly to be in electrical contact with the second contact site 122 of splicing ear 12 supports end 212, and button 22 to be positioned at above electroconductive elastic sheet 21 and to be aligned with touch part 211 place, and this button 22 can be made by the material of rubber, silica gel or other tool softer, elastic.

This insulation film 3 has the smooth shape base portion 31 combining and be positioned on pedestal 1 top surface, and groove 131 place that each corner in base portion 31 bottom surface utilizes adhesive agent to be incorporated into location division 13 in the mode of gummed becomes to be integrated, and base portion 31 face center place is provided with the cap portion 32 that Open Side Down, and the empty internal in cap portion 32 is formed with the storage tank 321 can located for button 22, it is inner that button 22 also can utilize adhesive agent to be incorporated into storage tank 321 in the mode of gummed, and with electroconductive elastic sheet 21 between be separated out a preset space length mutually.

Moreover, when push switch of the present utility model and circuit board (not shown) carry out weld job, first pedestal 1 is positioned on circuit board surface, and be piercing in by two splicing ears 12 and expose to the first weld part 123 of pedestal 1 both sides and the second weld part 124 and utilize surface mount technology (SMT) the welding manner contact corresponding with on circuit board to form electrical connection to be only one and preferably to implement state, also firm being bonded into of perforation (ThroughHole) welding manner can be utilized to be integrated, and to form good status of electrically connecting.

When the utility model is in time using, first press on the cap portion 32 of insulation film 3 downwards on the surface, and after the effect that the button 22 of press component 2 is compressed, just can ejection be a strain in the surface, side, touch part 211 of electroconductive elastic sheet 21, each first contact 1211 of the first contact site 121 that the opposite side surface of touch part 211 is then held in splicing ear 12 downwards forms electrical connection, and because of electroconductive elastic sheet 21 support end 212 for be in electrical contact with another splicing ear 12 each second contact 1221 of the second contact site 122 on, just can by the touch part 211 of electroconductive elastic sheet 21, support end 212 to support the first contact site 121 of being contacted with two splicing ears 12 respectively with the second contact site 122 is formed and be electrically connected, make push switch can switch to closed circuit state by original open-circuit condition, when the cap portion 32 that user decontrols insulation film 3 discharges, had elastic restoring force can be made to top offset by the polyimides (PI) of insulation film 3 itself or silica gel material, and drive and be reset to original position in button 22, or upwards to support to arrive in by the elastic restoring force that the touch part 211 of electroconductive elastic sheet 21 has and be reset to original position in button 22, also make touch part 211 leave the first contact site 121 place in splicing ear 12 simultaneously, just push switch can be switched to open-circuit condition.

And button 22 ejection of press component 2 on the touch part 211 of electroconductive elastic sheet 21 time, just two mutual stacking formation one layered laminate of electroconductive elastic sheet 21 can be relied on to increase overall structural elasticity, structural damage or destruction is not easily produced, to guarantee stability during overall pressing during the effect that electroconductive elastic sheet 21 is compressed; When on the first contact site 121 that the touch part 211 of electroconductive elastic sheet 21 is held in splicing ear 12, the surface area of its contact and the wear phenomenon caused of swiping is reduced by the groove 1212 between each first contact 1211, and burr and metal fines etc. that CONTACT WITH FRICTION produces, and press component 2 can be provided to have good pressing touch, the situation that poor electric contact or start also can be avoided to have some setbacks occurs.

Be with, two splicing ears 12 are positioned with bottom the room 11 of the utility model mainly for pedestal 1 empty internal, and multiple electroconductive elastic sheets 21 and the button 22 that press component 2 is positioned at place above splicing ear 12 is contained in room 11 inside, and pedestal 1 top surface is combined with the insulation film 3 of tool base portion 31, being formed with the storage tank 321 can located for button 22 again in the inside, cap portion 32 of base portion 31 centre is key protection point, the cap portion 32 of this kind of insulation film 3 is for slightly to protrude from base portion 31 face center place, not only structure simply can be convenient to a large amount of production and manufacture and save materials cost, also insulation film 3 engages button 22 can be utilized effectively to reduce overall height and more miniaturized.

Above-mentioned detailed description be for the utility model one preferably possible embodiments illustrate, but this embodiment be not used to limit claim of the present utility model, under all other does not depart from the skill spirit that the utility model discloses, the equalization change that completes is changed with modifying, and all should be contained in the scope of the claims that the utility model contains.

Claims

1. a push switch, includes pedestal, press component and insulation film, it is characterized in that:

2. push switch as claimed in claim 1, is characterized in that: be provided with two terminal grooves bottom the room of this pedestal, and in two terminal grooves, is positioned with the first contact site and second contact site of two splicing ears respectively.

3. push switch as claimed in claim 1, it is characterized in that: the first contact site of the splicing ear of this pedestal has multiple first contacts of protrusion on the surface, and be formed with groove between each two adjacent first contacts, and the second contact site has multiple second contacts protruding and be positioned at each corner of room on the surface.

4. push switch as claimed in claim 1, is characterized in that: each corner this pedestal top surface is positioned at around room is respectively equipped with location division, and is all formed with the groove utilizing adhesive agent to be combined into one for insulation film bottom surface place in location division place.