CN210443473U

CN210443473U - Key mechanism

Info

Publication number: CN210443473U
Application number: CN201920491972.3U
Authority: CN
Inventors: 姚昌春; 程春林; 宋奇飞; 马龙贺; 窦威
Original assignee: Zhuhai Tozhiny Technology Co ltd
Current assignee: Zhuhai Tozhiny Technology Co ltd
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2020-05-01
Anticipated expiration: 2029-04-11

Abstract

The utility model provides a button mechanism, which comprises a PET film, a button and a button cover, wherein the PET film is arranged in a convex structure at the middle position; a conductive contact attached at a position below the convex structure of the PET film; a first insulating connector disposed below the PET film for connecting the PET film with PCBA; the silica gel key is cylindrical and is arranged above the PET film; the upper cover, and set up to with the lower cover of upper cover lock, the PET membrane set up with by the upper cover with in the sealed housing that the lower cover lock constitutes, the upper cover is provided with at least one through-hole, the silica gel button is outstanding at least one through-hole and be higher than the part of upper cover sets up to 0.5MM to 3MM, the radius of at least one through-hole sets up to being greater than the radius 0.1MM to 0.6MM of silica gel button.

Description

Key mechanism

Technical Field

The application relates to the field of keys, in particular to a key mechanism.

Background

Most of the remote controller keys in the current market are silica gel + conductive layer and silica gel plus dome type keys, wherein the silica gel plus conductive layer keys have large hand feeling stroke, poor hand feeling, large gap of appearance keys and easy key clamping and the like; the silica gel and metal dome type key has high cost, high reject ratio and complex manufacturing process.

The current remote controller and the line controller keys are mostly in the forms of silica gel + conducting layer and silica gel + metal dome, and the user can switch and use the functions of various household appliances by pressing the remote controller keys.

The existing process, namely the forms of the silica gel + the conductive layer and the silica gel plus the metal dome, has the disadvantages of high cost, complex processing, easy occurrence of bad phenomena such as key clamping and the like, thereby causing much inconvenience for users.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve and the technical task who provides improve prior art, provide a key mechanism.

According to an embodiment of the present disclosure, there is provided a key mechanism including a PET film provided with a convex structure formed at a middle position; a conductive contact attached at a position below the convex structure of the PET film; a first insulating connector disposed below the PET film for connecting the PET film with PCBA; the silica gel key is cylindrical and is arranged above the PET film; the upper cover, and set up to with the lower cover of upper cover lock, the PET membrane sets up by the upper cover with in the sealed housing that the lower cover lock constitutes, the upper cover is provided with at least one through-hole, the silica gel button is outstanding at least one through-hole and be higher than the part of upper cover sets up to 0.5MM to 3MM, the radius of at least one through-hole sets up to being greater than the radius 0.1MM to 0.6MM of silica gel button.

As an improvement of the technical scheme, the insulating connecting piece is of a double-faced adhesive structure.

As an improvement of the technical scheme, the conductive contact is a carbon oil point formed by screen printing.

As an improvement of the above technical solution, the conductive contact is a copper contact.

As an improvement of the technical scheme, the LED lamp further comprises a second insulating connecting piece arranged above the convex structure and used for connecting the silica gel key with the PET film.

As an improvement of the above technical solution, the conductive contacts are conductive plastic contacts.

As an improvement of the above technical solution, the conductive contacts are conductive plastic contacts formed by dispensing.

As an improvement of the above technical solution, the material of the upper cover is selected from at least one of the group consisting of:

polyimide, PET plastic, aramid, polyetheretherketone.

As an improvement of the above technical solution, the upper cover and the lower cover are provided to be composed of the same material, and the material is at least one selected from the group consisting of: polyimide, PET plastic, aramid, polyetheretherketone; or

The upper cover and the lower cover are arranged to at least comprise different materials, and the materials of the upper cover and the lower cover are respectively selected from at least one of the following materials:

polyimide, PET plastic, aramid, polyetheretherketone.

The utility model has the advantages that:

adopt novel remote controller button can realize that the button feels good, not block the key, and cost greatly reduced, the cost of labor reduces, and machining efficiency is high, because of the button stroke is shorter, can not cause card key wait badly, can realize different button strength requirements, realizes the requirement of different button sizes. The traditional conductive key structure is changed, and the material cost is reduced. Shorten the key stroke and reduce the poor quality.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive work, wherein:

fig. 1 is a schematic view of a key mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of a key mechanism according to another embodiment of the present invention;

FIG. 3 is a schematic view of a prior art top layer PET of a key plus snap tab type key structure;

FIG. 4 is a schematic view of a bottom layer PET of a prior art key plus snap tab type key structure;

FIG. 5 is a schematic view of a dome of a prior art key plus dome shaped key structure;

fig. 6 is a schematic view of a dome assembly constructed by a key plus dome shaped key structure in the prior art.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Fig. 1 is a schematic view of a key mechanism according to an embodiment of the present invention, which includes a PET film 1, the PET film 1 being formed in a convex structure at a middle position; a conductive contact 3 attached at a position below the convex structure of the PET film 1; the first insulation connecting piece 2 is arranged below the PET film 1 and used for connecting the PET film 1 with PCBA; the silica gel key 4 is cylindrical and is arranged above the PET film 1; upper cover 5, and set up to with the lower cover 6 of 5 locks of upper cover, PET membrane 1 sets up by upper cover 5 with in the sealed casing that 6 locks of lower cover constitute, upper cover 5 is provided with at least one through-hole, silica gel button 4 is outstanding at least one through-hole and be higher than the part of upper cover 5 sets up to 0.5MM to 3MM, the radius of at least one through-hole sets up to being greater than the radius 0.1MM to 0.6MM of silica gel button 4.

According to a preferred embodiment of the present invention, the insulating connecting member is a double-sided adhesive structure.

According to a preferred embodiment of the present invention, the conductive contacts 3 are carbon oil dots by screen printing.

According to a preferred embodiment of the invention, the conductive contacts 3 are copper contacts.

According to the utility model discloses a preferred embodiment, further including setting up the second insulating connecting piece in convex structure top, be used for with silica gel button 4 with PET membrane 1 connects.

According to a preferred embodiment of the present invention, the conductive contacts 3 are conductive plastic contacts.

According to a preferred embodiment of the present invention, the conductive contacts 3 are conductive plastic contacts formed by dispensing.

According to a preferred embodiment of the present invention, the material of the upper cover 5 is selected from at least one of the group consisting of:

polyimide, PET plastic, aramid, polyetheretherketone.

According to a preferred embodiment of the present invention, the upper cover 5 and the lower cover 6 are provided to be composed of the same material, and the material is selected from at least one of the group consisting of: polyimide, PET plastic, aramid, polyetheretherketone; or

The upper cover 5 and the lower cover 6 are provided to include at least different one material, and the material of the upper cover 5 and the material of the lower cover 6 are respectively selected from at least one of the group consisting of:

polyimide, PET plastic, aramid, polyetheretherketone.

As shown in fig. 2, the key mechanism, which includes the membrane 4, is covered by an upper cover 5 and a lower cover 6, which form a complete key structure.

Fig. 3-6 are schematic diagrams of a key structure formed by a key and a snap dome in the prior art. The key with the structure has higher cost, high reject ratio and complex manufacturing process.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

Claims

1. A key mechanism, comprising:

a PET film provided with a convex structure formed at a middle position;

a conductive contact attached at a position below the convex structure of the PET film;

a first insulating connector disposed below the PET film for connecting the PET film with PCBA;

the silica gel key is cylindrical and is arranged above the PET film;

the upper cover, and set up to with the lower cover of upper cover lock, the PET membrane sets up by the upper cover with in the sealed housing that the lower cover lock constitutes, the upper cover is provided with at least one through-hole, the silica gel button is outstanding at least one through-hole and be higher than the part of upper cover sets up to 0.5MM to 3MM, the radius of at least one through-hole sets up to being greater than the radius 0.1MM to 0.6MM of silica gel button.

2. The key mechanism as claimed in claim 1, wherein the insulating connecting member is a double-sided adhesive structure.

3. A key mechanism according to claim 1, wherein said conductive contacts are carbon oil dots printed by screen printing.

4. A key mechanism according to claim 1, wherein said conductive contacts are copper contacts.

5. The key mechanism as claimed in claim 1, further comprising a second insulating connector disposed over the convex structure for connecting the silicone key to the PET film.

6. A key mechanism according to claim 5, wherein said electrically conductive contacts are electrically conductive plastic contacts.

7. A key mechanism according to claim 6, wherein said conductive contacts are conductive plastic contacts formed by dispensing.