CN207458801U - Button assembly and electronic equipment - Google Patents

Abstract

The utility model discloses a kind of button assembly and electronic equipments, the button assembly includes housing, button, sealing, elastomeric element and the circuit board for being arranged on the case inside, the housing is equipped with through hole and the holding tank for accommodating the elastomeric element and the sealing, and the through hole is opened in the bottom of the holding tank and is communicated with the holding tank；The button includes keycap and press section, and the press section passes through the holding tank and the through hole to press the circuit board；The sealing and the elastomeric element are sheathed on the press section, and the sealing is held in the bottom of the holding tank by the elastomeric element.Button assembly structure in the utility model improves the button water proofing property of electronic equipment and the flexibility of button assembling well.

Description

Button assembly and electronic equipment

Technical field

The utility model is related to technical field of electronic equipment more particularly to a kind of button assembly and with the button assembly Electronic equipment.

Background technology

With the development and progress of science and technology, electronic equipment brings many facilities to daily life, and gradually into For the daily use instrument of the modern life.But electronic equipment, which is once intake, will cause inner body generation short circuit, failure etc. Failure, so that can not normal use.

In the prior art, the waterproof of electronic equipment mainly realizes the purpose of waterproof by setting Waterproof push-button, still Waterproof push-button of the prior art there are Waterproof push-button interference dynamics it is limited, installation Waterproof push-button complicated for operation, button operation The defects of more dumb, causes waterproof effect undesirable and the feel of button is poor.

Utility model content

The main purpose of the utility model is to provide a kind of button assembly and electronic equipment, it is intended to promote pressing for electronic equipment Key water proofing property and button assembling flexibility.

To achieve the above object, button assembly provided by the utility model includes housing, button, sealing, elastomeric element With the circuit board for being arranged on the case inside, the housing is equipped with through hole and for accommodating the elastomeric element and described close The holding tank in envelope portion, the through hole are opened in the bottom of the holding tank and are communicated with the holding tank；The button includes key Cap and press section, the press section pass through the holding tank and the through hole to press the circuit board；The sealing and institute It states elastomeric element to be sheathed on the press section, the sealing is held in the bottom of the holding tank by the elastomeric element Portion.

Preferably, the sealing is sealing ring, and the thickness between the outer shroud and inner ring of the sealing ring is more than described press The distance between cell wall of splenium and the holding tank, so that the sealing ring is closely supported in the press section and the receiving On the cell wall of slot.

Preferably, the press section includes the free end being oppositely arranged and fixing end, the fixing end and the keycap phase Even, the free end is equipped with to prevent the limiting section that the button comes off from the through hole to the hull outside.

Preferably, the limiting section is the annular retaining wall from the lateral surface protrusion of the free end of the press section, the ring The size of shape blocking arm is more than the size of the through hole.

Preferably, the elastomeric element is supported between sealing ring and the keycap, and the elastomeric element is in the annular When retaining wall is held on the madial wall of the housing, the distance between the keycap and the sealing ring are less than the elastomeric element Natural length so that the elastomeric element always be in compressive state.

Preferably, the elastomeric element is when the annular retaining wall is held on the madial wall of the housing, the pressing Gap between the free end in portion and the circuit board is less than or equal to the programmable button stroke of the button.

Preferably, the free end of the press section offers recessing groove from end along the axial direction of press section, so that described press The splenium size of the free end and matching size of the through hole when being installed through the through hole close, so as to pass through State through hole.

Preferably, the deflection of the recessing groove is more than the diameter of the diameter and through hole when the free end is squeezed Between difference so that the press section of the button passes through the through hole when being installed through the through hole.

Preferably, the sealing ring is made of elastic material.

In addition, the utility model provides a kind of electronic equipment, the electronic equipment includes button described in any one of the above embodiments Component.

In the utility model, button assembly includes housing, button, sealing, elastomeric element and is arranged on case inside Circuit board, housing is equipped with through hole and the holding tank for accommodating elastomeric element and sealing, through hole and is opened in holding tank Bottom is simultaneously communicated with holding tank；Button includes keycap and press section, and press section passes through holding tank and through hole to press circuit board；It is close Envelope portion and elastomeric element are sheathed on press section, and sealing is held in the bottom of holding tank by elastomeric element；Button assembly leads to Setting sealing is crossed to stop that water enters enclosure interior, realizes the protection to housing interior structure, so as to be effectively improved electricity The water resistance of sub- equipment, while sealing element and elastomeric element are set on press section, installation is simple and convenient.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other attached drawings can also be obtained according to the structure shown in these attached drawings.

Fig. 1 is the structural exploded view of the button assembly in one embodiment of the utility model；

Sectional view after the button assembly assembling that Fig. 2 is Fig. 1.

Drawing reference numeral explanation：

Label	Title	Label	Title
				10	Housing	20	Button
30	Sealing	40	Elastomeric element
				50	Circuit board	100	Through hole
101	Holding tank	200	Keycap
				210	Press section	211	Free end
212	Fixing end	213	Limiting section
				214	Recessing groove	501	Trigger unit

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that described embodiment is only the part of the embodiment rather than whole of the utility model Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise Lower all other embodiments obtained, shall fall within the protection scope of the present invention.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each component etc., such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.

In addition, it and cannot be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for description purpose It solves to indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " the One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in the description of the utility model It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.

In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason Solution, for example, " fixation " can be fixedly connected or be detachably connected or integrally；It can be mechanical connection, also may be used Be electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be the connection inside two elements Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.

In addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical solution is conflicting or can not realize The combination of this technical solution is not present, also not within the protection domain of the requires of the utility model.

The utility model proposes a kind of button assemblies.

It is understood that in an embodiment of the utility model, button assembly can be used for mobile phone, wrist-watch, tablet The electronic equipments such as computer, E-book reader, computer.

Please also refer to Fig. 1 and Fig. 2, in the present embodiment, button assembly includes housing 10, button 20, sealing 30, bullet Property component 40 and be arranged on the circuit board 50 of the inside of housing 10, housing 10 is equipped with through hole 100 and for accommodating elastomeric element 40 With the holding tank 101 of sealing 30, through hole 100 is opened in the bottom of holding tank 101 and is communicated with holding tank 101；Button 20 wraps Keycap 200 and press section 210 are included, press section 210 passes through holding tank 101 and through hole 100 to press circuit board 50；30 He of sealing Elastomeric element 40 is sheathed on press section 210, and sealing 30 is held in the bottom of holding tank 101 by elastomeric element 40.

Specifically, by setting through hole 100 and holding tank 101 on the housing 10 with to button 20, sealing 30 and elasticity The certain accommodating space of component 40, button 20, sealing 30 and elastomeric element 40 can carry out accordingly in the accommodating space Activity.Wherein, the diameter dimension of press section 210 is slightly less than the diameter dimension of through hole 100, so that press section 210 can be in through hole It is moved in 100.

Wherein, circuit board 50 can include the trigger unit 501 that protrusion is set, and trigger unit 501 is dynamic with cooperation press section 210 Make, trigger unit 501 is connected with the internal circuit of electronic equipment.Trigger unit 501 is corresponding with the position of through hole 100.

Further, elastomeric element 40 can be supported between keycap 200 and sealing 30 or by housing 10 On other support divisions support between housing 10 and sealing 30, as long as it will be appreciated by persons skilled in the art that can So that elastomeric element 40 provides an elastic force and supports sealing 30 in the bottom of holding tank 101 always.

In the present embodiment, in button assembly, sealing 30 is closely supported at the bottom of holding tank 101 by elastomeric element 40 Portion, so that the water in 10 outside of housing can not enter the inside of housing 10 by the gap between button 20 and housing 10.

Stop that water enters inside housing 10 by setting sealing 30, can realize the guarantor to 10 internal structure of housing Shield, so as to be effectively improved the water resistance of electronic equipment.

Further, in the present embodiment, sealing 30 is sealing ring, and the thickness between the outer shroud and inner ring of sealing ring is big In the distance between cell wall of press section 210 and holding tank 101, so that sealing ring is closely supported in press section 210 and holding tank On 101 cell wall.

Wherein, to avoid in operating process, sealing 30 is damaged due to the elastic force of elastomeric element 40, so as to reduce button The service life and water resistance of component can be arranged gasket between sealing 30 and elastomeric element 40.In the present embodiment, Sealing 30 may be employed silica gel material and be made, meanwhile, the surface of keycap 200 may be employed flexible waterproof material and be made, to carry The comfortable feel of high button 20.

It is understood that water is to be entered by the holding tank 101 and through hole 100 of housing 10 inside housing 10, thus, when When thickness between the outer shroud and inner ring of sealing ring is less than between press section 210 and the cell wall of holding tank 101, press section 210 with Water can be caused to be easy to enter inside housing 10 by the gap, and then go out electronic equipment there are gap between holding tank 101 Show the failures such as short circuit or even the element of electronic equipment internal is made to suffer damage；But the thickness between the outer shroud of sealing ring and inner ring When degree is more than between press section 210 and the cell wall of holding tank 101, sealing ring can be made to be closely adhered to press section 210 and hold It receives between slot 101, and then reduces sealing 30 and the gap of the cell wall joint place of holding tank 101, effective ground resistance to greatest extent Water blocking enters the possibility inside housing 10 by gap, so as to improve the water resistance of electronic equipment.

Wherein, sealing ring may be employed the material with certain elasticity and such as silica gel, rubber etc. be made, good using its Elastic tight is fitted on the cell wall of holding tank 101.By the cooperation of sealing 30 and press section 210, structure is improved The water resistance of compactedness and button assembly.

Please again together with reference to Fig. 1 and 2, press section 210 includes the free end 211 being oppositely arranged and fixing end 212, fixed End 212 is connected with keycap 200, and free end 211 is equipped with to prevent what button 20 from coming off at through hole 100 to 10 outside of housing Limiting section 213.

It should be noted that because button assembly is the important component of electronic equipment, button assembly cannot be fully When disposing on an electronic device, it will cause sealing ring that cannot strictly be sealed to holding tank 101, and then lose electronic equipment Water resistance, simultaneously it is also possible to influence electronic equipment partial function can not normal use, therefore, for ensure electronic equipment The stability of energy and reinforcement water proofing property, can set limiting section 213 on the free end of press section 210 211.Limiting section 213 can To be effectively prevented because the realization of the water resistance and some functions that come off and influence electronic equipment of button 20.Wherein, The fin that limiting section 213 can be annular retaining wall or protrusion is set on the free end of press section 210 211.

In the present embodiment, limiting section 213 is the annular retaining wall of the lateral surface protrusion of the free end 212 in self-pressing portion 210, The size of annular blocking arm is more than the size of through hole 100.

It is understood that when the diameter of annular retaining wall is less than the diameter of through hole 100, press section 210 can be freely It is slided in through hole 100, easily comes off so as to cause press section 210, influence the performance of electronic equipment, therefore, annular gear The diameter of wall has to be larger than the diameter of through hole 100, so that the free end 211 of press section 210 is limited in 10 inside of housing, so as to Button 20 can be effectively prevented to come off to 10 outside of housing at through hole 100.

Further, elastomeric element 40 is supported between sealing ring and keycap 200, and elastomeric element 40 is supported in annular retaining wall When on the madial wall of housing 10, the distance between keycap 200 and sealing ring are less than the natural length of elastomeric element 40, so that bullet Property component 40 always be in compressive state.

It is understood that when annular retaining wall is supported in through hole 100, due to the distance between keycap 200 and sealing ring Less than the natural length of elastomeric element 40, elastomeric element 40 is constantly in compressive state, meanwhile, the elastic force of elastomeric element 40 forces Sealing ring is in impaction state, i.e., when button assembly is not used, sealing 30 is also to be constantly in squeezed state, so that pressing Gap between splenium 210 and holding tank is reduced, and electronic equipment is made to be constantly in waterproof state.

When in use, applying pressure on keycap 200 makes press section 210 be moved towards 50 direction of circuit board, completes pressing The operation of trigger unit 501, in this operating process, elastomeric element 40 deforms upon under external force, meanwhile, elastomeric element 40 when in compressive state, and sealing 30 is held in the bottom of holding tank 101 using elastic force, is squeezed so that sealing 30 is in Pressure condition, after unclamping press section 210, elastic force auxiliary 210 return of press section of elastomeric element 40.The length of elastomeric element 40 and straight Footpath can be configured according to through hole 100 and holding tank 101.It in the present embodiment, can be between press section 210 and keycap 200 It is integrally formed, can also be connected by modes such as welding.

Wherein, in the present embodiment, by supporting elastomeric element 40 between sealing ring and keycap 200, so that institute's bullet Property component 40 always in compressive state, certainly, in other embodiments, other embodiment can also be taken, make elastic portion Part 40 is compressed always.Such as：In other embodiments, holding tank 101 can include the first holding tank and the second holding tank, the For accommodating keycap 200, the second holding tank is used to accommodate elastomeric element 40 and sealing 30, the footpath of the first holding tank one holding tank It is more than second radial width to width, wherein, elastomeric element 40 is held between the upper side wall and sealing ring of the second holding tank.

Preferably, in the present embodiment, elastomeric element 40 is when annular retaining wall is held on the madial wall of housing 10, pressing Gap between the free end 211 in portion 210 and circuit board 50 is less than or equal to 20 stroke of programmable button of the button 20.

It is understood that button 20 have the function of the premise of button 20 be press section 210 can press trigger unit 501 with And can move back and forth in housing 10, thus exist centainly between the free end 211 of press section 210 and circuit board 50 Gap.Under the action of external force and elastomeric element 40, the free end 211 of press section 210 is moved in gap, and is pressed and touched Hair portion 501, wherein, when gap is more than 20 stroke of programmable button of button 20, the free end 211 of press section 210 cannot be touched Trigger unit 501, therefore, button 20 realize that the premise of its 20 function of button is the programmable button that gap should be less than or equal to button 20 20 strokes.

Specifically, when pressing keys 20, button 20 is under the promotion of the elastic force of elastomeric element 40, towards trigger unit 501 It slides, after the action for completing button 20 is coordinated in trigger unit 501, press section 210 is extensive under the auxiliary of the elastic force of elastomeric element 40 Original position is arrived again, is completed button 20 and is operated.

Further, axial direction of the free end 211 of press section 210 from end along press section 210 offers recessing groove 214, So that press section 210 size of free end 211 and matching size of through hole 100 when being installed through through hole 100 close, so as to smoothly Through through hole 100.

Because the diameter of limiting section 213 is more than the diameter of through hole 100, button 20 is be easy to cause in assembling process, it is difficult to Into 10 inside of housing.It is understood that because the setting of recessing groove 214 and the effect of external force, press section 210 is in through hole In 100 into housing 10 during Slideslip, recessing groove 214 can be subject to the extruding of the inner wall of through hole 100 and vacating space, so that pressing The size of the dimensional fits through hole 100 of the free end 211 in portion 210.Wherein, the radical length of recessing groove 214 and axial width can To be set according to the making choice property of diameter of through hole 100.

Further, in one embodiment, can be formed in the lateral surface of the free end of press section 210 has certain tilt The conical surface of angle.It is understood that button assembly, in assembling process is carried out, the conical surface can efficiently reduce air resistance Power, so as to reduce the assembly difficulty of button assembly.The angle of inclination of the conical surface can be set according to specific requirement.

Further, the diameter of the diameter that the deflection of recessing groove 214 is more than when free end 211 is squeezed and through hole 100 Between difference so that the press section 210 of button 20 passes through through hole 100 when being installed through through hole 100.

Specifically, in the present embodiment, the deflection of recessing groove 214 is more than annular retaining wall when free end 211 is squeezed The difference between diameter between diameter and through hole 100 adds preset value, so that press section 210 both can be successfully externally entering 10 inside of housing, and can outwards come off to avoid from 10 inside of housing.Wherein, the scope of preset value is in 0.1~1mm, preset value Occurrence can be set according to the diameter of annular retaining wall and the diameter of through hole 100.

The utility model also provides a kind of electronic equipment, including button assembly as described above.Due to pressing for electronic equipment The structure of key asembly employs whole technical solutions of above-mentioned all embodiments, therefore at least has the technical side of above-described embodiment All advantageous effects caused by case, this is no longer going to repeat them.

The foregoing is merely being preferably implemented for the utility model, and it does not limit the scope of the patent of the present invention, all It is the equivalent structure transformation made based on the specification and figures of the utility model or straight under the design of the utility model It connects/is used in other related technical areas indirectly and is included in the scope of patent protection of the utility model.

Claims (10)

1. a kind of button assembly, which is characterized in that including housing, button, sealing, elastomeric element and be arranged in the housing The circuit board of side, the housing is equipped with through hole and the holding tank for accommodating the elastomeric element and the sealing, described Through hole is opened in the bottom of the holding tank and is communicated with the holding tank；The button includes keycap and press section, described to press Splenium passes through the holding tank and the through hole to press the circuit board；The sealing and the elastomeric element are sheathed on On the press section, the sealing is held in the bottom of the holding tank by the elastomeric element.

2. button assembly as described in claim 1, which is characterized in that the sealing is sealing ring, the sealing ring it is outer Thickness between ring and inner ring is more than the distance between cell wall of the press section and the holding tank, so that the sealing ring is tight It is close to support on the cell wall of the press section and the holding tank.

3. button assembly as described in claim 1, which is characterized in that the press section includes the free end being oppositely arranged and consolidates Fixed end, the fixing end are connected with the keycap, the free end be equipped with for prevent the button from the through hole to The limiting section that the hull outside comes off.

4. button assembly as claimed in claim 3, which is characterized in that the limiting section is from the free end of the press section The annular retaining wall of lateral surface protrusion, the size of the annular retaining wall are more than the size of the through hole.

5. button assembly as claimed in claim 4, which is characterized in that the elastomeric element is supported in sealing ring and the keycap Between, the elastomeric element is when the annular retaining wall is held on the madial wall of the housing, the keycap and the sealing The distance between circle is less than the natural length of the elastomeric element, so that the elastomeric element is in compressive state always.

6. button assembly as claimed in claim 4, which is characterized in that the elastomeric element is held in institute in the annular retaining wall When stating on the madial wall of housing, the gap between the free end of the press section and the circuit board is less than or equal to the pre- of the button If key stroke.

7. button assembly as claimed in claim 4, which is characterized in that the free end of the press section is from end along press section Recessing groove axially is offered, so that the press section size of the free end and through hole when being installed through the through hole Matching size close, so as to pass through the through hole.

8. button assembly as claimed in claim 7, which is characterized in that the deformation of free end recessing groove when being squeezed Amount more than the annular retaining wall diameter and the through hole diameter between difference so that the press section of the button through The through hole is passed through during the through hole installation.

9. according to claim 1-8 any one of them button assemblies, which is characterized in that the sealing ring uses elastic material system Into.

10. a kind of electronic equipment, which is characterized in that the electronic equipment includes such as claim 1-9 any one of them buttons Component.