CN207367842U - A kind of circuit arrangement for showing thin film switch - Google Patents

Abstract

The utility model discloses a kind of circuit arrangement for showing thin film switch, including lower circuit, the side outer wall bottom welding of the lower circuit has grafting port, the opposite side outer wall welding of the lower circuit has display screen, the top outer wall welding of the lower circuit has equally distributed lower contact, the top outer wall of the lower circuit is bonded with articulamentum, the top outer wall of the articulamentum offers equally distributed second through hole, the quantity of second through hole is identical with the quantity of lower contact, and lower contact is located at the inside of the second through hole, one side outer wall of the articulamentum offers the heat emission hole equidistantly distributed, and leave gap between heat emission hole and the second through hole, the top outer wall of the articulamentum is covered with separation layer.The utility model is simple in structure, so that thin film switch thermal diffusivity is more preferable, heat easily distributes for whole design, avoids causing the impaired of circuit element, extends its service life.

Description

A kind of circuit arrangement for showing thin film switch

Technical field

It the utility model is related to membrane switch technology field, more particularly to a kind of circuit arrangement for showing thin film switch.

Background technology

Thin film switch is an operating system for integrating keypress function, indicator elment, instrument panel, and thin film switch is again Claim soft-touch type keyboard, the integral seal structure being composed using planar multilayer, is to show key switch, panel, mark, symbol Show and the light, mechanical, electrical integrated a kind of new electronic component of collection that liner plate is sealed, be electronic product surface structure root The change of person's character, it may replace the button of conventional discrete element, more reliably perform the task of operating system, it is widely used in The fields such as telecommunications, the instrument of electronic surveying, Industry Control, Medical Devices, auto industry, intelligent toy, household electrical appliance.It is existing Heat can be produced during some thin film switch uses, still, existing thin film switch poor radiation, heat does not distribute not go out for a long time Circuit element is be easy to cause to be damaged, and the long often pressing of thin film switch usage time, its service life can be caused to shorten.

The content of the invention

The purpose of this utility model is to solve shortcoming existing in the prior art, and what is proposed a kind of shows that film is opened The circuit arrangement of pass.

To achieve these goals, the utility model employs following technical solution：A kind of circuit for showing thin film switch Equipment, including lower circuit, the side outer wall bottom welding of the lower circuit have grafting port, the opposite side outer wall of the lower circuit Welding has display screen, and the top outer wall welding of the lower circuit has equally distributed lower contact, the top outer wall of the lower circuit Articulamentum is bonded with, the top outer wall of the articulamentum offers equally distributed second through hole, the quantity of second through hole It is identical with the quantity of lower contact, and lower contact is located at the inside of the second through hole, one side outer wall of the articulamentum offers equidistantly From the heat emission hole of distribution, and gap is left between heat emission hole and the second through hole, the top outer wall of the articulamentum is covered with isolation Layer, the inside of the separation layer are placed with the elastic steel sheet equidistantly distributed, and the top outer wall of the separation layer offers equidistantly From the first through hole of distribution, and first through hole is between adjacent elastic steel sheet, the top outer wall of the separation layer covered with Upper circuit, the bottom outer wall welding of the upper circuit have the upper contact equidistantly distributed, and the quantity and first through hole of upper contact Quantity it is identical, the top outer wall of the upper circuit is bonded with button covered with panel, the top outer wall of the panel.

Preferably, the quantity of the heat emission hole is ten five to three ten, and the length of heat emission hole and the length phase of articulamentum Together.

Preferably, top outer wall the same side of the panel, upper circuit, separation layer and articulamentum offers opening, And the length of opening, the length of width and display screen, width corresponding adaptation respectively, opening and display location are in the same side.

Preferably, the upper circuit length, width and lower circuit length, be of same size.

Preferably, the quantity of the button and the quantity of upper contact are identical, and button is located at the surface of upper contact.

Preferably, the first through hole is identical with the diameter of the second through hole.

The beneficial effects of the utility model are：The utility model is simple in structure, the button on panel is pressed downwards, in pressure Under the action of, elastic steel sheet deforms upon, upper contact move down and and lower contact connection circuit, pass through elastic steel sheet Design, reduces panel stress intensity, the new heat produced when in use can by heat emission hole in time to external cooling, So that thin film switch thermal diffusivity is more preferable, heat easily distributes for whole design, avoids causing the impaired of circuit element, extends Its service life.

Brief description of the drawings

Fig. 1 be the utility model proposes a kind of display thin film switch circuit arrangement schematic cross-sectional view；

Fig. 2 be the utility model proposes a kind of display thin film switch circuit arrangement panel construction schematic diagram.

In figure：1 plug port, 2 articulamentums, 3 heat emission holes, 4 elastic steel sheets, 5 separation layers, circuit on 6,7 panels, 8 buttons, 9 upper contacts, 10 display screens, 11 first through hole, 12 second through holes, 13 lower contacts, 14 times circuits.

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 Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

With reference to Fig. 1-2, a kind of circuit arrangement for showing thin film switch, including lower circuit 14, the side outer wall of lower circuit 14 Bottom welding has grafting port 1, and the opposite side outer wall welding of lower circuit 14 has display screen 10, the top outer wall welding of lower circuit 14 There is equally distributed lower contact 13, the top outer wall of lower circuit 14 is bonded with articulamentum 2, and the top outer wall of articulamentum 2 offers Equally distributed second through hole 12, the quantity of the second through hole 12 is identical with the quantity of lower contact 13, and lower contact 13 is located at second The inside of through hole 12, one side outer wall of articulamentum 2 offer the heat emission hole 3 equidistantly distributed, and 3 and second through hole 12 of heat emission hole Between leave gap, the top outer wall of articulamentum 2 is placed with the bullet equidistantly distributed covered with separation layer 5, the inside of separation layer 5 Property steel disc 4, the top outer wall of separation layer 5 offers the first through hole 11 equidistantly distributed, and first through hole 11 is positioned at adjacent Between elastic steel sheet 4, the top outer wall of separation layer 5 has equidistant point covered with upper circuit 6, the bottom outer wall welding of upper circuit 6 The upper contact 9 of cloth, and the quantity of upper contact 9 is identical with the quantity of first through hole 11, the top outer wall of upper circuit 6 is covered with panel 7, the top outer wall of panel 7 is bonded with button 8.

In the utility model, the quantity of heat emission hole 3 is ten five to three ten, and the length of heat emission hole 3 and the length of articulamentum 2 To spend identical, panel 7, upper circuit 6, top outer wall the same side of separation layer 5 and articulamentum 2 offer opening, and be open Corresponding adaptation, opening and display screen 10 are located at the same side respectively for length, the length of width and display screen 10, width, and upper circuit 6 is grown Degree, width and lower circuit 14 length, be of same size, the quantity of button 8 is identical with the quantity of upper contact 9, and button 8 is positioned at upper The surface of contact 9, first through hole 11 are identical with the diameter of the second through hole 12.

Operation principle：The button 8 on panel 7 is pressed downwards, and under the effect of the pressure, elastic steel sheet 4 deforms upon, upper to touch Point 9 moves down simultaneously and lower contact 13 contacts connection circuit, by the design of elastic steel sheet 4, reduces 7 stress intensity of panel, The new heat produced when in use can be by heat emission hole 3 in time to external cooling.

The above, is only the preferable embodiment of the utility model, but the scope of protection of the utility model is not This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality New technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of circuit arrangement for showing thin film switch, including lower circuit（14）, it is characterised in that the lower circuit（14）One Side outer wall bottom welding has grafting port（1）, the lower circuit（14）Opposite side outer wall welding have display screen（10）, under described Circuit（14）Top outer wall welding have equally distributed lower contact（13）, the lower circuit（14）Top outer wall be bonded with company Connect layer（2）, the articulamentum（2）Top outer wall offer equally distributed second through hole（12）, second through hole（12） Quantity and lower contact（13）Quantity it is identical, and lower contact（13）Positioned at the second through hole（12）Inside, the articulamentum（2） One side outer wall offer the heat emission hole equidistantly distributed（3）, and heat emission hole（3）With the second through hole（12）Between leave gap, The articulamentum（2）Top outer wall covered with separation layer（5）, the separation layer（5）Inside be placed with what is equidistantly distributed Elastic steel sheet（4）, the separation layer（5）Top outer wall offer the first through hole equidistantly distributed（11）, and first through hole （11）Positioned at adjacent elastic steel sheet（4）Between, the separation layer（5）Top outer wall covered with upper circuit（6）, it is described to power on Road（6）Bottom outer wall welding have the upper contact equidistantly distributed（9）, and upper contact（9）Quantity and first through hole（11）'s Quantity is identical, the upper circuit（6）Top outer wall covered with panel（7）, the panel（7）Top outer wall be bonded with button （8）.

A kind of 2. circuit arrangement for showing thin film switch according to claim 1, it is characterised in that the heat emission hole（3） Quantity be ten five to three ten, and heat emission hole（3）Length and articulamentum（2）Length it is identical.

A kind of 3. circuit arrangement for showing thin film switch according to claim 1, it is characterised in that the panel（7）, on Circuit（6）, separation layer（5）And articulamentum（2）Top outer wall the same side offer opening, and be open length, width And display screen（10）Length, width corresponding adaptation respectively, opening and display screen（10）Positioned at the same side.

A kind of 4. circuit arrangement for showing thin film switch according to claim 1, it is characterised in that the upper circuit（6） Length, width and lower circuit（14）Length, be of same size.

A kind of 5. circuit arrangement for showing thin film switch according to claim 1, it is characterised in that the button（8）'s Quantity and upper contact（9）Quantity it is identical, and button（8）Positioned at upper contact（9）Surface.

A kind of 6. circuit arrangement for showing thin film switch according to claim 1, it is characterised in that the first through hole （11）With the second through hole（12）Diameter it is identical.