CN216671447U - Plane pressing membrane switch - Google Patents

Abstract

The utility model relates to a plane pressing membrane switch which comprises a protective layer, a lower circuit layer, a metal elastic sheet, an upper circuit layer, a membrane layer, a key icon layer and a panel layer, wherein the lower circuit layer is arranged on the top of the protective layer, the metal elastic sheet is arranged on the top of the lower circuit layer, an adhesive layer is arranged on the top of the lower circuit layer and positioned on the outer side of the metal elastic sheet, an upper circuit layer is arranged on the top of the adhesive layer, the top of the upper circuit layer and positioned on the metal elastic sheet is of an arc structure, an arc convex hull is arranged on the top of the metal elastic sheet on the membrane layer, and a filling layer is arranged on the top of the membrane layer and positioned on the outer side of the arc convex hull. Has the advantages that: convenient operation is realized to metal shrapnel under arc convex closure, compression spring in the cavity and the effect of pressing the convex closure, and metal shrapnel realizes the closure of relay on upper circuit layer and lower circuit layer, and the illuminating part reflects light at curved reflection of light portion for whole membrane switch luminance is even stable, convenient to use, and practical value is high.

Description

Plane pressing membrane switch

Technical Field

The utility model relates to the technical field of film switches, in particular to a plane pressing film switch.

Background

The membrane switch is an operation system integrating a key function, an indicating element and an instrument panel, has the characteristics of rigorous structure, attractive appearance, good sealing property, moisture resistance, long service life and the like, and is widely applied to the fields of electronic communication and electronic measurement instruments, industrial control, medical equipment, the automobile industry, intelligent toys, household appliances and the like.

The membrane switch in the prior art comprises a panel, a surface adhesive layer, an upper circuit, an isolation layer, a lower circuit and a ground adhesive layer, wherein when the membrane switch is pressed down, a contact of the upper circuit deforms downwards and is in contact conduction with a polar plate of the lower circuit, after a finger is loosened, the contact of the upper circuit rebounds, the circuit is disconnected, and a loop triggers a signal.

However, in the existing membrane switch, a user presses a button with poor hand feeling, the comfort level of use is low, in addition, after long-time pressing, the elasticity of an inner metal elastic sheet is poor, the user needs to press the membrane switch with force, long-time repeated use pressing causes certain damage to finger bellies of the user, in addition, the planar membrane switch cannot uniformly emit light, so that a light emitting point cannot illuminate the membrane switch, time and labor are wasted in the use process, and the membrane switch is inconvenient to use.

Disclosure of Invention

The present invention is directed to a flat push-type membrane switch, which solves the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: a plane pressing membrane switch comprises a protective layer, a lower circuit layer, a metal elastic sheet, an upper circuit layer, a membrane layer, a key icon layer and a panel layer, wherein the lower circuit layer is arranged on the top of the protective layer, the metal elastic sheet is arranged on the top of the lower circuit layer, an adhesive layer is arranged on the top of the lower circuit layer and positioned on the outer side of the metal elastic sheet, an upper circuit layer is arranged on the top of the adhesive layer, an arc-shaped structure is arranged on the top of the metal elastic sheet on the upper circuit layer, an arc-shaped convex hull is arranged on the top of the metal elastic sheet on the membrane layer, a filling layer is arranged on the top of the membrane layer and positioned on the outer side of the arc-shaped convex hull, the key icon layer is arranged on the top of the filling layer, the panel layer is arranged on the top of the key icon layer, and a groove is formed in the center of the bottom of the arc-shaped convex hull, the light-emitting diode packaging structure is characterized in that a compression spring is fixedly bonded to the top of the groove on the arc-shaped convex hull, an arc-shaped connecting plate is arranged at the bottom of the compression spring, light-emitting pieces are arranged on two sides of the filling layer, and light reflecting portions are arranged on two sides of the arc-shaped convex hull.

Furthermore, a cementing layer is arranged on the top of the upper circuit layer and positioned on the outer side above the metal elastic sheet, and the thin film layer is arranged on the top of the cementing layer.

Further, compression spring's bottom extends to the outside of recess, just the compression spring bottom passes through arc connecting plate fixed mounting has presses the convex closure, just the arc connecting plate with press the convex closure and be the rubber material.

Furthermore, the light-emitting piece is fixedly installed at the center of one side, close to the metal elastic piece, of the filling layer, and the light reflecting portion of the arc-shaped structure is arranged on one side, located on the thin film layer, of the light-emitting piece.

Furthermore, a pressing cavity is formed between the filling layers and located on one side of the bottom of the key icon layer.

Furthermore, the panel layer, the key icon layer and the protective layer are made of flexible materials, and the upper circuit layer and the lower circuit layer adopt polyester films as carriers of circuits.

Compared with the prior art, the utility model has the following beneficial effects: through the arc convex closure of metal shrapnel in the cavity, convenient operation is realized with the effect of pressing down the convex closure down, avoid pressing down for a long time of finger tripe and cause the ache, labour saving and time saving, and easy operation realizes the closure of relay at upper circuit layer and lower circuit layer through metal shrapnel to send control command, moreover, the steam generator is simple in structure, high durability and convenient use, reflect light in curved reflection of light portion through the illuminating part, make whole membrane switch luminance even stable, and convenient to use, practical value is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a flat push membrane switch in accordance with the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

reference numerals:

1. a protective layer; 2. a lower circuit layer; 3. a metal spring sheet; 4. an upper circuit layer; 5. a thin film layer; 6. a key icon layer; 7. a panel layer; 8. an adhesive layer; 9. an arc convex hull; 91. a groove; 92. a compression spring; 93. an arc-shaped connecting plate; 94. a light reflecting section; 95. pressing the convex hull; 10. a filling layer; 11. a light emitting member; 12. a cementing layer; 13. the cavity is pressed.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, a planar push membrane switch according to the present invention comprises a protection layer 1, a lower circuit layer 2, a metal dome 3, an upper circuit layer 4, a membrane layer 5, a key icon layer 6 and a panel layer 7, wherein the protection layer 1 is provided with the lower circuit layer 2 on the top, the metal dome 3 is provided on the top of the lower circuit layer 2, an adhesive layer 8 is provided on the top of the lower circuit layer 2 and outside the metal dome 3, the upper circuit layer 4 is provided on the top of the adhesive layer 8, the upper circuit layer 4 is provided with an arc structure on the top of the metal dome 3, the membrane layer 5 is provided with an arc-shaped convex hull 9 on the top of the metal dome 3, the membrane layer 5 is provided with a filling layer 10 on the outside the arc-shaped convex hull 9 on the top, the key icon layer 6 is provided on the top of the filling layer 10, the panel layer 7 is provided on the top of the key icon layer 6, the bottom center department of arc convex closure 9 sets up recess 91, lies in recess 91 top bonding on the arc convex closure 9 and is fixed with compression spring 92, and compression spring 92's bottom is provided with arc connecting plate 93, is provided with illuminating part 11 on the both sides of filling layer 10, and arc convex closure 9 both sides are equipped with reflection of light portion 94.

Wherein, the top outside that lies in metal shrapnel 3 on the top of going up circuit layer 4 is provided with cementing layer 12, and cementing layer 12's top is provided with thin layer 5, stable in structure.

Wherein, compression spring 92's bottom extends to the outside of recess 91, and compression spring 92 bottom has through arc connecting plate 93 fixed mounting to press convex closure 95, and arc connecting plate 93 with press convex closure 95 and be the rubber material, the operation of being convenient for is pressed.

Wherein, the filling layer 10 is fixedly provided with a luminous element 11 near the center of one side of the metal elastic sheet 3, and the thin film layer 5 is provided with a reflecting part 94 with an arc structure at one side of the luminous element 11, so as to realize uniform reflection.

Wherein, a pressing cavity 13 is arranged between the filling layers 10 and at one side of the bottom of the key icon layer 6, so that simple operation is realized.

The panel layer 7, the key icon layer 6 and the protective layer 1 are made of flexible materials, the upper circuit layer 4 and the lower circuit layer 2 adopt polyester films as carriers of circuits, and structural materials are stable.

Principle of operation

According to the technical scheme, the planar pressing membrane switch is convenient to operate under the action of the arc-shaped convex hulls, the compression springs and the pressing convex hulls of the metal elastic sheets in the cavity in the using process, the pain caused by long-time pressing of finger bellies is avoided, time and labor are saved, the operation is simple, the closing of the relay is realized on the upper circuit layer and the lower circuit layer through the metal elastic sheets, so that a control instruction is sent, the structure is simple, the use is convenient, the light is reflected on the arc-shaped light reflecting portion through the light emitting piece, the brightness of the whole membrane switch is uniform and stable, the use is convenient, and the practical value is high.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. A plane pressing membrane switch comprises a protective layer (1), a lower circuit layer (2), a metal elastic sheet (3), an upper circuit layer (4), a membrane layer (5), a key icon layer (6) and a panel layer (7), and is characterized in that the lower circuit layer (2) is arranged on the top of the protective layer (1), the metal elastic sheet (3) is arranged on the top of the lower circuit layer (2), an adhesive layer (8) is arranged on the outer side of the metal elastic sheet (3) on the top of the lower circuit layer (2), an upper circuit layer (4) is arranged on the top of the adhesive layer (8), the top of the upper circuit layer (4) on the metal elastic sheet (3) is of an arc-shaped structure, an arc-shaped convex hull (9) is arranged on the top of the metal elastic sheet (3) on the membrane layer (5), and a filling layer (10) is arranged on the outer side of the arc-shaped convex hull (9) on the top of the membrane layer (5), the top of filling layer (10) is provided with button icon layer (6), the top of button icon layer (6) is provided with panel layer (7), the bottom center department of arc convex closure (9) sets up fluted (91), lie in on arc convex closure (9) recess (91) top bonding is fixed with compression spring (92), the bottom of compression spring (92) is provided with arc connecting plate (93), be provided with on the both sides of filling layer (10) luminous piece (11), arc convex closure (9) both sides are equipped with reflection of light portion (94).

2. The flat push membrane switch of claim 1, wherein a glue layer (12) is disposed on the top of the upper circuit layer (4) and outside the top of the metal dome (3), and the thin film layer (5) is disposed on the top of the glue layer (12).

3. The flat push type membrane switch of claim 1, wherein the bottom of the compression spring (92) extends to the outside of the groove (91), a push convex hull (95) is fixedly installed at the bottom end of the compression spring (92) through the arc-shaped connecting plate (93), and the arc-shaped connecting plate (93) and the push convex hull (95) are made of rubber.

4. The flat push membrane switch of claim 1, wherein the filling layer (10) is fixedly provided with the light emitting member (11) near the center of one side of the metal dome (3), and the thin film layer (5) is provided with the light reflecting portion (94) having an arc structure at one side of the light emitting member (11).

5. A flat push membrane switch according to claim 1, characterized in that between the filler layers (10) on the side of the bottom of the key icon layer (6) there is a push cavity (13).

6. The flat push-type membrane switch of claim 1, wherein the panel layer (7), the key icon layer (6) and the protective layer (1) are made of flexible materials, and the upper circuit layer (4) and the lower circuit layer (2) adopt polyester films as circuit carriers.

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