CN206849740U

CN206849740U - A kind of metal dome and its electronic card with the metal dome

Info

Publication number: CN206849740U
Application number: CN201720519459.1U
Authority: CN
Inventors: 陈国平
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-11
Filing date: 2017-05-11
Publication date: 2018-01-05
Anticipated expiration: 2027-05-11
Also published as: WO2018205583A1; TWM560690U

Abstract

A kind of metal dome and its electronic card with the metal dome, wherein, metal dome includes metal clips and flexible plastic sheet with recess, a holding part for being used to house metal clips is provided with the inner bottom surface of the flexible plastic sheet, the hard piece for being used for receiving external force pressure at right angle is provided between the flexible plastic sheet and the metal clips, the Outside Dimensions of the hard piece are more than or equal to the Outside Dimensions of 2 millimeters of recesses for being less than or equal to the metal clips.For this metal dome when it is in whole sealing status to be used in around built-in and metal dome, the metal dome also can normal use；Using the electronic card of this metal dome, it, which is switched, has the advantages of using flexible, good hand touch.

Description

A kind of metal dome and its electronic card with the metal dome

Technical field

The utility model relates to a kind of metal dome and its electronic card with the metal dome.

Background technology

Metal dome is mainly used in thin film switch, microswitch, printed substrate, rigid plate, such as all kinds of card products In, used as switch element.Steady, several big advantages that conduction is strong, resilience is stable and feel is all good are contacted because it has, It is used widely.

Existing metal dome can be divided into single layer structure and double-decker from its textural classification, wherein, the pot of single layer structure Young piece includes metal clips and flexible plastic sheet with recess, and one is provided with the inner bottom surface of the flexible plastic sheet and is used to house The holding part of metal clips, adhesive-layer, the metal elastic are provided with least on the inner bottom surface of the holding part of the flexible plastic sheet It is bonded at the top of the recess of piece on the adhesive-layer.It is general on the flexible plastic sheet in order to ensure feel and using effect Provided with passage.In use, the metal clips of metal dome is fixed on corresponding conducting position in circuit；When external force acts on In metal clips, the central point of metal clips is recessed, touches the conducting position in circuit, so as to form loop, electric current by, Whole product is just able to normal work.

The metal dome of double-decker is to have added one layer of resilient spacer, the elasticity on the basis of the metal dome of single layer structure Partition is covered in above the flexible plastic sheet, and the purpose for setting resilient spacer has at 2 points, first, resilient spacer can be with wiring board Good contact is kept, possesses more preferable feel（It is somewhat similarly to ' bulge ' of thin film switch）；Second, dust is prevented from ventilation Hole enters in flexible plastic sheet, extends the service life of metal dome.

The metal dome use of above two structure is in general electric equipment products, using being above no any problem, but It is that, in some special occasions, hermetically sealed state as built in metal dome and around metal dome, it uses just completely ineffective It is living.As shown in figure 1, when existing metal dome use is when on electronic card, this problem there is.

As shown in figure 1, this is a kind of electronic card with certain or some functions, it includes upper thin bottom surface 100 with Thin bottom surface 200, described thin bottom surface 100 and under be provided with pcb board 300 between thin bottom surface 200, be provided with the pcb board 300 Electronic component 400 and at least one metal dome 500, described thin bottom surface 100 and under remaining space between thin bottom surface 200 It is interior to be provided with filling glue 600；The metal dome 500 includes metal clips 510 and flexible plastic sheet 520 with recess 530, described The inner bottom surface of flexible plastic sheet 520 is provided with a holding part for being used to house metal clips 510, in the flexible plastic sheet 520 The inner bottom surface of holding part be provided with adhesive-layer（Non- label）, the top of the recess 530 of the metal clips 510 is bonded at described glue On glue-line, release layer is provided with the remote metal clips 510 of the flexible plastic sheet 520（Non- label）, to prevent Filling glue 600 is stated to cling flexible plastic sheet 520.In this case, when the highest electronic component 400 on pcb board 300 When being highly more than the metal dome 500, due to filling the presence of glue 600 so that built in metal dome 500 and around metal dome 500 In hermetically sealed state, at this moment, when external force presses to metal dome 500, the metal clips 510 of metal dome 500 is not easy to be pressed Under, through research, if found the reason is that metal dome is efficiently used, it is necessary to external force be concentrated on the top of metal dome, Closer to top, it is pressed, and effect is better, and feel is better.But if the filling glue 600 in metal dome 500 is blocked up, External force is difficult to focus on the top of metal dome 500, so, switching effect is bad, and feel is also bad.As shown in Fig. 2 external force F In addition to few a part of power directly acts on metal dome 500, it is scattered that remaining is all filled glue 600.

Utility model content

In order to overcome above mentioned problem, the utility model, which provides one kind, to be in complete close built in metal dome and around metal dome Feng Shi, its switching effect is good, presses the metal dome of good hand touch.

Another purpose of the present utility model is to provide a kind of electronic card with this metal dome.

The technical solution of the utility model is：A kind of metal dome, including metal clips and elastoplast with recess are provided Piece, be provided with the inner bottom surface of the flexible plastic sheet and be used to house the holding part of metal clips, the flexible plastic sheet with The hard piece for being used for receiving external force is provided between the metal clips, the Outside Dimensions of the hard piece are more than or equal to 2 millimeters small In the Outside Dimensions of the recess equal to the metal clips.

It is more than or equal to 0.1mm as the thickness to improvement of the present utility model, the hard piece.

Selected as the thickness to improvement of the present utility model, the metal clips between 0.05mm-0.1mm.

As to improvement of the present utility model, it is provided with the surface of the remote metal clips of the flexible plastic sheet Release layer.

It is plane as the upper bottom surface to improvement of the present utility model, the flexible plastic sheet.

The utility model also provides a kind of electronic card with the metal dome, including upper thin bottom surface thin bottom surface with, The upper thin bottom surface and under be provided with pcb board between thin bottom surface, electronic component and at least one pot of son are provided with the pcb board Piece, described thin bottom surface and under be provided with filling glue in remaining space between thin bottom surface, the metal dome is above-mentioned one kind One of metal dome.

The utility model is outer for receiving as a result of being provided between the flexible plastic sheet and the metal clips The hard piece of power pressure at right angle, the hardness of the hard piece are more than or equal to the hardness of the metal clips, the hard piece it is outer The structure that size is more than or equal to the Outside Dimensions of 2 millimeters of recesses for being less than or equal to the metal clips is enclosed, so, when such pot When being in whole sealing status built in young piece is used in and around metal dome, the hard piece of the metal dome can bear the vertical of external force Pressure, and can concentrate on external force at the top of metal dome, and using the electronic card of this metal dome, it, which is switched, has using spirit It is living, switching effect is good, the advantages of good hand touch.

Brief description of the drawings

Fig. 1 is a kind of cross section structure diagram of existing electronic card.

Fig. 2 is a kind of existing electronics piece external force force analysis schematic diagram.

Fig. 3 is the cross section structure diagram of the first embodiment of the utility model.

Fig. 4 is the cross section structure diagram of second of embodiment of the utility model.

Fig. 5 is the cross section structure diagram of the third embodiment of the utility model.

Fig. 6 is the cross section structure diagram of the 4th kind of embodiment of the utility model.

Fig. 7 is a kind of cross section structure diagram of electronic card of the utility model.

Fig. 8 is the force analysis schematic diagram of embodiment illustrated in fig. 7.

Embodiment

In description of the present utility model, it is to be understood that " " center ", " on " in term, " under ", "front", "rear", The orientation or position relationship of the instructions such as "left", "right" are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch State the utility model and simplify and describe, rather than instruction or imply signified device or element must have specific orientation, with Specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second " It is only used for describing purpose, and it is not intended that instruction or hint relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connection ", " connected " should be interpreted broadly, for example, it may be being fixedly connected or dismantling connection, or integratedly be connected Connect；Can be mechanical connection or electrical connection；Can be joined directly together or be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Language is in concrete meaning of the present utility model.In addition, in description of the present utility model, unless otherwise indicated, " multiple ", " some " It is meant that two or more.

Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 3 is referred to, what Fig. 3 was disclosed is a kind of metal dome 50, including metal clips 51 and elastoplast with recess 53 Piece 52, the holding part for being used for housing metal clips 51 is provided with the inner bottom surface of the flexible plastic sheet 52, in the elasticity modeling Be provided between tablet 52 and the metal clips 51 and be used to receiving the hard piece 54 of external force pressure at right angle, the hard piece 54 it is outer Enclose the Outside Dimensions that size is less than or equal to the recess 53 of the metal clips 51 more than or equal to 2 millimeters.Because the utility model makes With hard piece 54, so, when the utility model is even with being in whole sealing status around built-in and metal dome, this pot of son Piece also can normal use, referring to Fig. 8, hard piece 54 can bear external force F1 pressure at right angle, and pressure is concentrated on metal dome Top.In addition, the utility model is provided with several through holes 541 on the hard piece 54, to facilitate air in the elasticity Flowed in plastic sheet 52, so as to ensure the resilience of metal clips 51.Hard piece 54 in the present embodiment can be with made of metal, such as Stainless steel substrates, potsherd can also be made of rigid plastics, such as ABS plastic.Through experiment, when the Outside Dimensions of hard piece 54 It is less than or equal to the Outside Dimensions of the recess 53 of the metal clips 51 more than or equal to 2 millimeters, it is all to receive that it, which presses effect, , i.e., it is to connect as the 5%-100% of the Outside Dimensions for the recess 53 that the Outside Dimensions of hard piece 54 are metal clips 51 Receive.When as the 20%-80% of the Outside Dimensions for the recess 53 that the Outside Dimensions of hard piece 54 are metal clips 51, it is pressed Better, feel is also more preferable.

Preferably, the shape of the metal dome 50 can be circular metal dome, including kidney ellipsoid, oval metal dome, with And cross metal dome, triangle metal dome or rectangle metal dome.The profile of the hard piece 54 and the metal clips 51 Profile can also be designed to similar or identical shape.

Preferably, the thickness of the hard piece 54 may be greater than the hard piece equal to 0.1mm, specific to electronic card, The hard piece 54 be preferably equal to or be slightly less than highest electronic component 40 height subtract metal clips 51 height and The thickness of flexible plastic sheet 52.

Preferably, the hardness of the metal clips 51 selects between HV480-550, at this moment, the hardness of hard piece 54 It can also be designed to be more than or equal to HV480, depending on the hardness of metal clips 51, sum it up, the hard piece 54 is hard Degree is greater than the hardness equal to metal clips 51.

Preferably, the thickness of the metal clips 51 selects between 0.05mm-0.1mm.

Preferably, adhesive-layer, the metal clips 51 are provided with the inner bottom surface of the holding part of the flexible plastic sheet 52 The top of recess 53 be bonded on the adhesive-layer.

Preferably, be provided with release layer 55 on the remote metal clips 51 of the flexible plastic sheet 52, with from only exist When making electronic card, its filling glue 60 is clung, the flexible plastic sheet 52.

Fig. 3 is referred to, Fig. 3 is second of embodiment of the present utility model, the reality shown in embodiment and Fig. 1 described in Fig. 3 Apply example to compare, its general structure is identical, except that the upper bottom surface of the flexible plastic sheet 52 is plane.So be advantageous to outer Power presses the hard piece 54.

Fig. 4 is referred to, Fig. 4 is the third embodiment of the present utility model, the reality shown in embodiment and Fig. 1 described in Fig. 4 Apply example to compare, its general structure is identical, except that also including resilient spacer 56, the resilient spacer 56 is between the metal Between shell fragment 51 and the hard piece 54, the upper surface of the resilient spacer 56 contacts or glued with the lower surface of hard piece 54 Connect, the lower surface of the resilient spacer 56 upper surface or bonding with the metal clips 51.This structure can make institute State the space that flexible plastic sheet 52 forms a relative closure, and be boundary with the hard piece 54, formed two it is different Space segment, to facilitate air relative flow in closing space, with the profit resilience of metal clips 51.

Refer to Fig. 5, Fig. 5 is the 4th kind of embodiment of the present utility model, the reality shown in embodiment and Fig. 4 described in Fig. 5 Apply example to compare, its general structure is identical, except that the upper bottom surface of the flexible plastic sheet 52 is plane；So be advantageous to outer Power presses the hard piece 54.

Refer to Fig. 6, shown in Fig. 6 is a kind of electronic card with the metal dome, including upper thin bottom surface 10 and under it is thin Bottom surface 20, described thin bottom surface 10 and under be provided with pcb board 30 between thin bottom surface 20, electronics member is provided with the pcb board 30 Device 40 and at least one metal dome 50, described thin bottom surface 10 and under be provided with filling in remaining space between thin bottom surface 20 Glue 60, the metal dome 50 are the described metal domes 50 shown in above-mentioned Fig. 2.Obviously, the embodiment shown in Fig. 3 to Fig. 5 is also It can apply on this electronic card, repeat no more herein.

Obviously, those skilled in that art can carry out various changes and modification without departing from this practicality to the utility model New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to including these changes and modification.

Claims

1. a kind of metal dome, including band recess（53）Metal clips（51）And flexible plastic sheet（52）, in the elastoplast Piece（52）Inner bottom surface be provided be used for house metal clips（51）Holding part, it is characterised in that in the flexible plastic sheet （52）With the metal clips（51）Between be provided with and be used to receive the hard piece of external force（54）, the hard piece（54）Peripheral chi It is very little to be more than or equal to 2 millimeters and be less than or equal to the metal clips（51）Recess（53）Outside Dimensions.

2. metal dome according to claim 1, it is characterised in that the hard piece（54）Thickness be more than or equal to 0.1mm.

3. metal dome according to claim 1 or 2, it is characterised in that the metal clips（51）Thickness in 0.05mm- Selected between 0.1mm.

4. metal dome according to claim 1 or 2, it is characterised in that in the flexible plastic sheet（52）Away from described Metal clips（51）Surface be provided with release layer（55）.

5. metal dome according to claim 1 or 2, it is characterised in that the flexible plastic sheet（52）Upper bottom surface be flat Face.

6. a kind of electronic card, including upper thin bottom surface（10）The thin bottom surface with（20）, the thin bottom surface described（10）The thin bottom with Face（20）Between be provided with pcb board（30）, in the pcb board（30）It is provided with electronic component（40）With at least one metal dome （50）, the thin bottom surface described（10）The thin bottom surface with（20）Between remaining space in be provided with filling glue（60）, its feature exists In the metal dome（50）It is the metal dome in claim 1 to claim 5 described in any one claim（50）.