CN102856103A - Button device - Google Patents

Abstract

A button device comprises a casing, a button and a switch component. The casing is provided with a button hole, and a clamping portion which surrounds the button hole in a circle and axially extends along the button hole is arranged on the inner side of the casing. The button is held in the button hole, one end of the button is provided with a stopping portion, and the stopping portion surrounds the outside of the button in a circle, stops the button from separating from the button hole and is provided with a matching portion. The matching portion surrounds in a circle and is clamped with the clamping portion. The switch component is held in the casing to press the button, so that the button deforms elastically and is abutted against the switch component to trigger a switch module. By arranging the clamping portion extending along the button hole axially on the casing and arranging the matching portion clamped with the clamping portion on the button, the button device is effectively waterproof and dustproof.

Description

Pushbutton unit

[technical field]

The present invention relates to a kind of pushbutton unit, particularly relate to the waterproof press-button device in a kind of light fixture.

[background technology]

Pushbutton unit is the requisite part of light fixture, can realize the Push And Release of light source by pushbutton unit, and the part pushbutton unit also has the effect of regulating light intensity concurrently.Pushbutton unit can become different shapes according to the overall construction design of light fixture, realize effect attractive in appearance.

General light fixture is in the long-term process of using, and dust and water may enter into the inside of pushbutton unit, causes the malfunctioning of circuit or breaking-up, uses light fixture in rugged environment, and this situation is even more serious.

[summary of the invention]

Based on this, be necessary to provide a kind of and can prevent dust, the pushbutton unit of waterproof.

A kind of pushbutton unit comprises housing, button, reaches switch module.Described housing offers button hole, and the inboard of described housing is provided with around one week of described button hole and along the axially extended holding section of described button hole.Button is contained in the described button hole, and described button one end is provided with around its one week of outside and prevents the stop part that described button is deviate from from described button hole.Described stop part is provided with the auxiliary section of rounding and holding mutually with described holding section.Switch module is contained in the described housing, presses described button, makes described button generation elastic deformation and compresses described switch module, thereby trigger described switch module.

Further, described button is the cavity structure with an openend, and its end face relative with described openend formation compresses structure.

Further, described button is set to the hardware structure near described open end portion, described button is set to the movable elastic rubber layer of energy or the snake fu jie structure of Foldable near the described structure division that compresses, and by the contact-making surface at described button and described switch module O type circle is set and seals.

Further, described holding section is along the axially extended projection of described button hole, and described auxiliary section is along the axially extended groove of described button hole.

Further, described holding section is along the axially extended groove of described button hole, and described auxiliary section is along the axially extended projection of described button hole.

Further, described switch module has first end, and the end face of described first end is provided with key hole, and the switch module is installed in the described switch module, described switch module has press key pole, and described press key pole passes the outside that described key hole partly is exposed at described switch module.

Further, described pushbutton unit also comprises pressure holding piece and locking member, described switch module also comprises second end relative with described first end, described pressure holding piece is U-shaped structure, and its two ends are extended with flank, and the second end section of described switch module is contained in the described pressure holding piece, and described flank is provided with through hole, described locking member passes described through hole and is fixed in described housing, so that described switch module is formed extruding.

Further, described button is the cavity structure with an openend, and described stop part is located at the outer peripheral edges of described openend, and the shell of described stop part and described switch module connects, with annular seal space of accommodating described press key pole of common formation.

Further, be provided with spacing preiection on the described housing, described spacing preiection and described holding section are nested.

Further, described through hole is symmetrically distributed on the described pressure holding piece, and the degree of depth that described locking member inserts described housing is consistent.

By arranging at housing along the axially extended holding section of button hole, at button the auxiliary section that fastens with described holding section is set, above-mentioned pushbutton unit can effectively be prevented dust, waterproof.

[description of drawings]

Fig. 1 is the cutaway view of the pushbutton unit of the present embodiment;

Fig. 2 is the partial enlarged drawing of pushbutton unit shown in Figure 1;

Fig. 3 is the exploded view of pushbutton unit shown in Figure 1;

Fig. 4 is the stereogram after pushbutton unit shown in Figure 3 is installed.

[embodiment]

Shown in Fig. 1～2, thepushbutton unit 100 of an embodiment compriseshousing 110,button 120 andswitch module 130.

Housing 110 hasupper surface 111 and lower surface 112.Upper surface 111 is provided withbutton hole 113, andbutton 120 is contained in the button hole 113.Lower surface 112 is provided with opening, andswitch module 130 is contained in thehousing 110 by the opening of lower surface 112.The inboard ofhousing 110 is provided with holding section 114.Holding section 114 is aroundbutton hole 113 1 week and extending axially along button hole 113.Button 120 1 ends are provided with stop part (figure is mark not).Stop part centers on its one week of outside, and prevents whatbutton 120 from deviating from from button hole 113.Stop part is provided with theauxiliary section 121 of rounding and fastening with holding section 114.Switch module 130compresses button 120, makes the contact-making surface ofholding section 114 andauxiliary section 121 form hermetically-sealed construction.In the present embodiment,holding section 114 is along the axially extended snap fit tabs of button hole, andauxiliary section 121 is along the axially extended groove of button hole.Above-mentioned pushbutton unit is by arranging athousing 110 alongbutton hole 113 axially extendedholding sections 114, atbutton 120auxiliary section 121 that fastens withholding section 114 is set, match withauxiliary section 121 inholding section 114, improving the sealing betweenhousing 110 and thebutton 120, thereby avoid water, dust etc. to enter in thehousing 110 and pollute and be contained in theinterior switch module 130 of housing 110.Therefore, above-mentioned pushbutton unit is waterproof, dustproof.

Above-mentioned pushbutton unit can be applied on the light fixture, and in the time of preventing effectively that light fixture from using in rugged environment, rainwater or dust invade the inside of light fixture, causes the malfunctioning or short circuit of circuit.

Concrete,button 120 iscavity structure.Button 120 has an openend 122, and its end face relative with openend 122 forms and compresses structure 123.In the present embodiment, the material ofbutton 120 is elastomeric material.The size ofbutton 120 is less than the size ofbutton hole 113, andbutton 120 elastic deformation can occurbutton hole 113 isinterior.Housing 110 also comprises thespacing preiection 115 nested withholding section 114, and the height ofspacing preiection 115 is greater than the height of holding section 114.Spacing preiection 115 can be nested withholding section 114 or be nested outward, in the present embodiment, and thespacing preiection 115outer holding sections 114 that are nested in.The material ofhousing 110 is hard material.

Shown in Fig. 1～4,switch module 130 is the structure adaptive with the inner wall shape ofhousing 110, for example cuboid or cylinder.In the present embodiment,switch module 130 is the cuboidcavity.Switch module 130 hasfirst end 131,second end 132 relative with first end 131.The end face offirst end 131 is provided with through hole 133.The inside ofswitch module 130 is equipped withswitch module 134, andswitch module 134 has press key pole 1341.Press key pole 1341 is slender structure.In the present embodiment,press key pole 1341 is elongated cylinder.Press key pole 1341 parts are passed throughhole 133 and are exposed.Switch module 130 is contained in thehousing 110 by the opening of thelower surface 112 of housing 110.The end face of thefirst end 131 ofswitch module 130 compresses the openend 122 of button 120.Press key pole 1341 puts in the cavity ofbutton 120 by openend 122.The face that compresses 123 bybutton 120 just can produce pressing press key pole 1341.The elastic deformation ofbutton 120 producedpressing keys bar 1341 needed displacement stroke when utilization was pressed.

Further, for the seam crossing frompress key pole 1341 such as anti-sealing, dust enters in theswitch module 134, stop part is located at the outer peripheral edges of the openend 122 ofbutton 120, and the shell of stop part andswitch module 130 connects, with annular seal space of accommodatingpress key pole 1341 of common formation.

Forauxiliary section 121 firm the holding withbutton 120 of theholding section 114 that makeshousing 110, with the sealing between further raisinghousing 110 and thebutton 120, above-mentioned pushbutton unit also comprisespressure holding piece 140 and locking member 150.

In the present embodiment,pressure holding piece 140 is U-shaped structure, and its two ends are extended with flank (figure is mark not).Thesecond end 132 parts ofswitch module 130 are contained in the pressure holding piece 140.The flank ofpressure holding piece 140 is provided with two symmetrical through holes 141, and locking member 150 passes through hole 141 and is screwed in thehousing 110, screws locking member 150 and just can form extruding force to switch module 130.Switch module 130 can be controlled byspacing preiection 115 in the displacement ofhousing 110 inside, just can change the displacement range ofswitch module 130 by the height that changesspacing preiection 115, thereby changes the extruding force of 130 pairs ofbuttons 120 of switch module.

Be appreciated thatpressure holding piece 140 can replace to other shape, for example flat structure or lid type structure, but will guaranteeswitch module 130 is produced uniform extruding force.The number of through hole 141 can change, and is preferably symmetrical, and the degree of depth that locking member 150 screws inhousing 110 is preferably consistent, can produce uniform extruding force like this, makes the good sealing of formation betweenbutton 120 and thehousing 110.

Be appreciated thatpressure holding piece 140 and locking member 150 can omit.Switch module 130 is cylinder.Inside athousing 110 arranges helicitic texture, atswitch module 130 matching thread is set.Switch module 130 is screwed in thehousing 110, just can produces the extruding tobutton 120.

The engaging mode betweenbutton 120 and thehousing 110 that is appreciated that can have multiple.For example,auxiliary section 121 is alongbutton hole 113 axially extended bulge-structures, andholding section 114 is alongbutton hole 113 axially extended grooves.Perhaps,button 120 is set to the movable hermetically-sealed construction of energy, the snake fu jie structure of the elastic rubber layer that for example one deck is thin or Foldable nearcompressing face face 123 parts.Contact-making surface atbutton 120 andswitch module 130 arranges the effect that O type circle further reaches sealing; Perhaps fill one deck airtight and watertight padding at the contact-making surface ofbutton 120 andcontrol box assembly 130 and realize the effect that seals.

The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a pushbutton unit is characterized in that, comprising:

Housing, described housing offers button hole, and the inboard of described housing is provided with around one week of described button hole and along the axially extended holding section of described button hole;

Button is contained in the described button hole, and described button one end was provided with around its outside one week and prevent the stop part that described button is deviate from from described button hole, and described stop part is provided with the auxiliary section of rounding and holding mutually with described holding section; And

Switch module is contained in the described housing, presses described button, makes described button generation elastic deformation and compresses described switch module, thereby trigger described switch module.

2. pushbutton unit as claimed in claim 1 is characterized in that, described button is the cavity structure with an openend, and its end face relative with described openend formation compresses structure.

3. pushbutton unit as claimed in claim 2, it is characterized in that, described button is set to the hardware structure near described open end portion, described button is set to the movable elastic rubber layer of energy or the snake fu jie structure of Foldable near the described structure division that compresses, and by the contact-making surface at described button and described switch module O type circle is set and seals.

4. pushbutton unit as claimed in claim 1 is characterized in that, described holding section is along the axially extended projection of described button hole, and described auxiliary section is along the axially extended groove of described button hole.

5. pushbutton unit as claimed in claim 1 is characterized in that, described holding section is along the axially extended groove of described button hole, and described auxiliary section is along the axially extended projection of described button hole.

6. pushbutton unit as claimed in claim 1, it is characterized in that, described switch module has first end, the end face of described first end is provided with key hole, the switch module is installed in the described switch module, described switch module has press key pole, and described press key pole passes the outside that described key hole partly is exposed at described switch module.

7. pushbutton unit as claimed in claim 6, it is characterized in that, described pushbutton unit also comprises pressure holding piece and locking member, described switch module also comprises second end relative with described first end, and described pressure holding piece is U-shaped structure, and its two ends are extended with flank, the second end section of described switch module is contained in the described pressure holding piece, described flank is provided with through hole, and described locking member passes described through hole and is fixed in described housing, so that described switch module is formed extruding.

8. pushbutton unit as claimed in claim 6, it is characterized in that, described button is the cavity structure with an openend, described stop part is located at the outer peripheral edges of described openend, and the shell of described stop part and described switch module connects, with annular seal space of accommodating described press key pole of common formation.

9. pushbutton unit as claimed in claim 1 is characterized in that, is provided with spacing preiection on the described housing, and described spacing preiection and described holding section are nested.

10. pushbutton unit as claimed in claim 7 is characterized in that, described through hole is symmetrically distributed on the described pressure holding piece, and the degree of depth that described locking member inserts described housing is consistent.

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