CN203720784U

CN203720784U - Membrane keyboard

Info

Publication number: CN203720784U
Application number: CN201420042871.5U
Authority: CN
Inventors: 罗明国
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-23
Filing date: 2014-01-23
Publication date: 2014-07-16
Anticipated expiration: 2024-01-23

Abstract

The utility model discloses a membrane keyboard in the field of electronic components. The membrane keyboard in a five-layer structure comprises a panel layer, a double-sided adhesive layer, a metal dome layer, a conducting membrane layer, and a back plate layer from top to bottom. The conducting membrane layer is provided with a control circuit and further comprises leads used for connecting a PCB. The panel layer is composed of a TPU membrane face layer and a silicone lining layer; the TPU membrane face layer integrally formed by pressing is provided with raised keys. The bottom of the silicone lining layer is provided with downward bumps corresponding to the keys in position; each downward bump contacts with each metal dome below. The membrane keyboard in the five-layer structure has the advantages that overall thickness is greatly decreased; the panel layer integrally made by pressing the TPU membrane face layer and the silicone lining layer is used with the metal domes having good handle, long travel and low strength so that the membrane keyboard can be super thin and can also display impression of the uneven keys, the membrane keyboard feels approximately as sectioned as the traditional keyboard when a user inputs, and inputting accuracy and inputting speed can be greatly increased.

Description

Membrane keyboard

Technical field

The utility model relates to electronic components field, is specifically related to membrane keyboard.

Background technology

Keyboard is as the most frequently used input equipment of computing machine, facilitate people computing machine and other computer products to be carried out to the input of text and order, along with scientific and technological progress, computing machine and mobile phone and portable entertainment device are combined, become a portable set terminal, become people's indispensable electronic product of going out.

Along with mobile phone, the intelligent development of panel computer, people more and more rely on mobile phone and flat board, therefore also there is higher requirement for the input of word, hope can be fast as conventional keyboard, only the small screen of armrest machine cannot realize, and therefore external connection keyboard, just because fortune is given birth to, can meet the requirement of people to word input.

The applicant has submitted a utility application about keyboard to 02 month 04 day 2013 days, and its number of patent application is " 201320060348.0 ", and innovation and creation name is called " new type superthin keyboard ".This patent constitutes seven-layer structure by panel layer, the first glue-line, UV post layer, the second glue-line, the young lamella of pot, conductive membrane layer and backsheet layer, makes it greatly reduce overall thickness, saves more space, carries and transport very convenient.But, the paragraph sense that this patent is not knocked in use, whether often uncertain have by arriving, and input on one side and see screen, greatly affected the speed of inputting.

Utility model content

The purpose of this utility model is to solve above defect, and a kind of membrane keyboard is provided, and it is pressed, and dynamics is little, and feel is good, can improve accuracy and the input speed of input.

The purpose of this utility model is achieved in the following ways:

Membrane keyboard, this keyboard is from top to bottom respectively by panel layer, layers of two-sided, the young lamella of pot, conductive membrane layer and backsheet layer constitute five-layer structure, this conductive membrane layer is provided with operation circuit, conductive membrane layer also comprises the lead-in wire for connecting PCB board simultaneously, described panel layer is by being with protruding button and forming by suppressing integrated TPU film surface layer and silica gel nexine, the young lamella of pot is by forming with the young sheet of pot of each protruding button correspondence position, the young sheet of described pot is high feel, the young sheet of cruciform pot of high-stroke and low dynamics, it is little that the young sheet of cruciform pot is pressed dynamics, the feature of good hand touch.Silica gel nexine is close to the bottom surface of TPU film surface layer, and the bottom surface of silica gel nexine is provided with the lower salient point corresponding with each key position, the each pot of young sheet contact that each lower salient point is corresponding with lower floor.When the design of lower salient point makes user use key-press input, there is the paragraph sense that approaches use conventional keyboard.

While pushing button, lower salient point contact with the young sheet of pot simultaneously, and the young sheet of pot is pressed, thereby the operation circuit of conducting conductive membrane layer is with generation function, and is connected on PCB by lead-in wire.

As preferably, described lead-in wire is also connected with Bluetooth function module, can realize wireless connections by electronic equipments such as this Bluetooth function module and mobile phone and panel computers.

As preferably, described TPU film facing surface is also provided with for anti-scratch wearing layer, can effectively prevent that button is by scratch.

As preferably, described layers of two-sided is made up of synthetic rubber, plays bonding bilevel effect, and the bottom surface of the upper surface of layers of two-sided and silica gel nexine is bonding, and the lower surface of layers of two-sided is bonding with the young lamella of pot.

As preferably, described backsheet layer is made up of glass-fiber-plate, plays overall positioning action, and keyboard entirety can not be out of shape.

The beneficial effect that the utility model produces is: adopt five-layer structure, make it greatly reduce overall thickness, save more space; Simultaneously; panel layer is formed by TPU film surface layer and silica gel nexine one-shot forming compacting; coordinate the application of the young sheet of pot of high feel, high-stroke and low dynamics; make keyboard accomplish the ultra-thin concave-convex sense that has again button; when user is inputted; there is the paragraph sense that approaches use conventional keyboard, and can touch system, accuracy and the input speed of input greatly improved; In addition, it uses extensively, practical, can be undertaken by Bluetooth technology in succession wirelessly, can match with the electronic product such as mobile phone and panel computer.

Brief description of the drawings

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model embodiment;

Fig. 2 is the sectional view of the utility model embodiment;

In figure, 1 is panel layer, and 2 is layers of two-sided, and 3 is the young lamella of pot, and 4 is conductive membrane layer, and 5 is backsheet layer, and 6 is lead-in wire, and 7 is the young sheet of pot, and 8 is TPU film surface layer, and 9 is silica gel nexine.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.

The present embodiment, see figures.1.and.2, it is specifically implemented structure and constitutes five-layer structure by panel layer 1, layers of two-sided 2, the young lamella 3 of pot, conductive membrane layer 4 and backsheet layer 5 respectively, and backsheet layer 5 is made up of glass-fiber-plate, play overall positioning action, keyboard entirety can not be out of shape.This conductive membrane layer 4 is provided with operation circuit, and conductive membrane layer 4 also comprises the lead-in wire 6 for connecting PCB board simultaneously, and lead-in wire 6 is also connected with Bluetooth function module, can realize wireless connections by electronic equipments such as this Bluetooth function module and mobile phone and panel computers.

Different from conventional art is its panel layer 1 is by being with protruding button and forming by suppressing integrated TPU film surface layer 8 and silica gel nexine 9, and TPU film surface layer 8 surfaces are also provided with for anti-scratch wearing layer, can effectively prevent that button is by scratch.Projection button makes keyboard possess in use the paragraph sense of conventional keyboard.The young lamella 3 of pot is by forming with the young sheet 7 of pot of each protruding button correspondence position, silica gel nexine 9 is close to the bottom surface of TPU film surface layer 8, the bottom surface of silica gel nexine 9 is provided with the lower salient point corresponding with each key position, and the each pot of young sheet 7 that each lower salient point is corresponding with lower floor contacts.

While pushing button, lower salient point contacts with the young sheet 7 of pot simultaneously, and the young sheet 7 of pot is pressed, thereby the operation circuit of conducting conductive membrane layer 4 is to produce function, and 6 is connected on PCB by going between.Panel layer 1 is formed by TPU film surface layer 8 and the 9 one-shot forming compactings of silica gel nexine, coordinate the application of the young sheet of pot of high feel, high-stroke and low dynamics, make keyboard accomplish the ultra-thin concave-convex sense that has again button, when user is inputted, there is the paragraph sense that approaches use conventional keyboard, and can touch system, greatly accuracy and the input speed of raising input.

Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as protection domain of the present utility model.

Claims

1. membrane keyboard, this keyboard is from top to bottom respectively by panel layer, layers of two-sided, the young lamella of pot, conductive membrane layer and backsheet layer constitute five-layer structure, this conductive membrane layer is provided with operation circuit, conductive membrane layer also comprises the lead-in wire for connecting PCB board simultaneously, it is characterized in that: described panel layer is by being with protruding button and forming by suppressing integrated TPU film surface layer and silica gel nexine, the young lamella of pot is by forming with the young sheet of pot of each protruding button correspondence position, silica gel nexine is close to the bottom surface of TPU film surface layer, the bottom surface of silica gel nexine is provided with the lower salient point corresponding with each key position, the each pot of young sheet contact that each lower salient point is corresponding with lower floor.

2. membrane keyboard according to claim 1, is characterized in that: described lead-in wire is also connected with Bluetooth function module.

3. membrane keyboard according to claim 1, is characterized in that: described TPU film facing surface is also provided with for anti-scratch wearing layer.

4. according to membrane keyboard described in claim 1～3 any one, it is characterized in that: described layers of two-sided is made up of synthetic rubber, the bottom surface of the upper surface of layers of two-sided and silica gel nexine is bonding, and the lower surface of layers of two-sided is bonding with the young lamella of pot.

5. according to membrane keyboard described in claim 1～3 any one, it is characterized in that: described backsheet layer is made up of glass-fiber-plate.