CN212750679U

CN212750679U - Key structure for industrial personal computer

Info

Publication number: CN212750679U
Application number: CN202021513391.4U
Authority: CN
Inventors: 曹维璋
Original assignee: Yangshun Technology Co ltd
Current assignee: Yangshun Technology Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-03-19
Anticipated expiration: 2030-07-27

Abstract

The utility model discloses a key structure for an industrial personal computer, which comprises a panel, a pressing mechanism arranged on the panel, and a circuit board arranged at the lower part of the panel, wherein an electronic key is arranged on the circuit board corresponding to the pressing mechanism; the pressing mechanism comprises an elastic film fixed on the panel, a supporting surface is arranged at the upper end of the elastic film, a through hole is formed in the middle of the supporting surface, the supporting surface and the inner wall of the lower portion of the elastic film form a cavity, a base is fixed in the cavity, a reset spring is arranged between the base and the supporting surface, a moving part is arranged on the supporting surface, an impact column is arranged at the bottom of the moving part, and a nameplate is arranged on the moving part. The utility model can prevent the key from being blocked when pressed, and the key can not be rebounded, thereby causing the problem of misoperation; the waterproof and dustproof can reach IP67 level. In addition, through set up reset spring between base and holding surface, reset through reset spring, can increase elastic film's life, and then increase the life of button.

Description

Key structure for industrial personal computer

Technical Field

The utility model relates to a button field, concretely relates to button structure for industrial computer.

Background

At present, the industrial computer button all adopts ordinary mechanical type button, because there is the space between button and the panel, presses the back, and the button is blocked in the panel easily, and unable resilience to cause the maloperation, the defective products appears, causes inconvenience and loss for the user, in addition, because the space, in comparatively abominable industrial environment, dust, water, greasy dirt etc. get into the button from the space easily in, lead to the internal circuit board short circuit, cause the industrial computer trouble.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art not enough, provide a key structure for industrial computer, solve the easy card key of current industrial computer button and cause the maloperation to and waterproof, dustproof poor, the short problem of life.

The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:

a key structure for an industrial personal computer comprises a panel, a pressing mechanism arranged on the panel, and a circuit board arranged at the lower part of the panel, wherein electronic keys are arranged on the circuit board and correspond to the pressing mechanism; the pressing mechanism comprises an elastic film fixed on the panel, a supporting surface is arranged at the upper end of the elastic film, a through hole is formed in the middle of the supporting surface, the supporting surface and the inner wall of the lower portion of the elastic film form a cavity, a base is fixed in the cavity, a reset spring is arranged between the base and the supporting surface, a moving part is arranged on the supporting surface, an impact column is arranged at the bottom of the moving part, and a nameplate is arranged on the moving part.

And an LED lamp is arranged at the rear part of the electronic key.

The movable piece, the impact column and the base are transparent pieces, and the movable piece and the impact column are of an integrally formed structure.

The section of the supporting surface is wavy.

The inner wall of the lower part of the elastic film is provided with a base fixing clamping groove, and the edge of the base is provided with a convex edge corresponding to the base fixing clamping groove; the periphery of the elastic film is provided with an elastic film fixing clamping groove, and the elastic film is fixed on the panel through the elastic film fixing clamping groove.

And a support frame is arranged on the inner wall of the elastic film, and the bottom of the support frame is connected with the base.

The utility model has the advantages that: the utility model discloses a button, through setting up the elastic film, make moving part and nameplate can not contact with the panel inside wall, can prevent to block the key when pressing, lead to the button can't rebound, cause the problem of maloperation; meanwhile, the waterproof and dustproof effects can reach IP67 level, and the influence of dust and liquid in the industrial environment on the industrial personal computer can be effectively avoided, so that the industrial personal computer is abnormal in work.

In addition, through set up reset spring between base and holding surface, at the in-process of pressing, reset spring through reset spring, can increase elastic film's life, and then increase the life of button.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of the structure of the elastic film of the present invention;

FIG. 5 is a schematic view of the bottom structure of FIG. 4;

FIG. 6 is a schematic view of the nameplate structure of the present invention;

FIG. 7 is a schematic view of the bottom structure of FIG. 6;

FIG. 8 is a schematic view of the base structure of the present invention

FIG. 9 is an exploded view of example 2;

FIG. 10 is a sectional view of embodiment 2.

In the figure: 1. the panel 2, the circuit board 3, the electronic key 4, the elastic film 5, the supporting surface 6, the base 7, the reset spring 8, the movable piece 9, the impact column 10, the nameplate 11, the guide column 12, the guide groove 13, the base fixing groove 14, the convex edge 15, the elastic film fixing groove 16, the nameplate fixing column 17, the nameplate fixing column groove 18, the fixture block 19, the through hole 20, the through hole 21, the limiting piece 22, the LED lamp 23, the limiting enclosure 24 and the supporting frame

Detailed Description

Example 1: referring to fig. 1 to 8, the present embodiment provides a key structure for an industrial personal computer, which includes a panel 1, a pressing mechanism disposed on the panel 1, a circuit board 2 disposed at a lower portion of the panel 1, and an electronic key 3 disposed on the circuit board 2 and corresponding to the pressing mechanism; the pressing mechanism comprises an elastic film 4 fixed on the panel 1, a supporting surface 5 is arranged at the upper end of the elastic film 4, a through hole 19 is formed in the middle of the supporting surface 5, a cavity is formed by the supporting surface 5 and the inner wall of the lower part of the elastic film 4, a base 6 is fixed in the cavity, a reset spring 7 is arranged between the base 6 and the supporting surface 5, a moving part 8 is arranged on the supporting surface 5, an impact column 9 is arranged at the bottom of the moving part 8, and a nameplate 10 is arranged on the moving part 8.

Through holes 20 are formed in the bottom of the base corresponding to the through holes 19, guide posts 11 are correspondingly arranged on two sides of the through holes 20, and guide grooves 12 are formed in two sides of the impact posts 9 corresponding to the guide posts 11.

The through hole 19 is fixedly sleeved at the upper end of the impact column 9 to form a sealing sleeve, so that the impact column 9 and the elastic film 4 are sealed, and the waterproof and dustproof effects of IP67 are achieved.

And an LED lamp 22 is arranged at the rear part of the electronic key 3.

The moving member 8, the impact column 9 and the base 6 are transparent members, and the moving member 8 and the impact column 9 are of an integrally formed structure.

The LED lamp 22 irradiates on the nameplate 10 through the impact column 9, the movable piece 8 and the base 6, and is adhered to the upper surface of the nameplate 10 to perform laser engraving or printing on functional characters.

The section of the supporting surface 5 is wave-shaped.

The supporting surface 5 is lower than the upper end of the elastic film 4, and the supporting surface 5 and the edge of the upper end of the elastic film 4 form a moving part accommodating groove.

The wave crest of the wave-shaped supporting surface 5 is attached to the bottom of the moving part 8, so that the water and dust can be effectively prevented, the wave-shaped supporting surface 5 has better ductility, the stroke of the supporting surface 5 can be improved in the pressing process, and the service life of the supporting surface 5 can be prevented from being reduced due to over-stretching of the supporting surface 5.

A base fixing clamping groove 13 is formed in the inner wall of the lower portion of the elastic film 4, and a convex edge 14 is formed in the edge of the base 6 corresponding to the base fixing clamping groove 13; an elastic film fixing slot 15 is arranged at the outer periphery of the elastic film 4, and the elastic film 4 is fixed on the panel 1 through the elastic film fixing slot 15.

A nameplate fixing column 16 is arranged in the middle of the bottom of the nameplate 10, a nameplate fixing column slot 17 is arranged on the movable piece 8 corresponding to the nameplate fixing column 16, and the nameplate fixing column slot 17 extends to the inside of the impact column 9. And clamping blocks 18 are arranged at the edges of four corners at the bottom of the nameplate 10, and the clamping blocks 18 are buckled with the periphery of the upper surface of the movable part to hook the nameplate 10, so that the nameplate 10 is fixed.

And a limiting enclosure 23 is arranged at the edge of the upper end of the base 6. The limiting surrounding baffle 23 has the function of limiting the downward stroke of the elastic film 4, and prevents the elastic film 4 from deforming and sinking due to overlarge stroke.

A limiting part 21 is arranged on one side of the lower end of the impact column 9. The limiting member 21 is matched with the bottom of the moving member 8, and plays a limiting role when the moving member 8 is pressed downwards and bounces upwards under the action of the return spring 7.

The limiting part 21 is a limiting part such as a limiting block or a limiting hook which can prevent the return spring 7 from being ejected upwards.

Example 2: referring to fig. 9 to 10, the present embodiment provides a key structure for an industrial personal computer, which has a structure substantially the same as that of embodiment 1, except that:

the inner wall of the elastic film 4 is also provided with a supporting frame 24, the bottom of the supporting frame 24 is connected with the base 6, and the outer wall of the supporting frame 24 is tightly attached to the inner wall of the elastic film 4.

The bottom of the supporting frame 24 is positioned on the convex edge 14 of the base 6.

By providing the support frame 24, the elastic thin film 4 can be prevented from collapsing due to the soft material of the elastic thin film 4.

The above, only be the feasible embodiment of preferred of the utility model, not for limiting the patent scope of the utility model, the event all uses the equivalent structure change that the content of the description did of the utility model discloses an all contain the protection scope of the utility model.

Claims

1. A key structure for an industrial personal computer is characterized by comprising a panel, a pressing mechanism arranged on the panel, and a circuit board arranged at the lower part of the panel, wherein electronic keys are arranged on the circuit board and correspond to the pressing mechanism; the pressing mechanism comprises an elastic film fixed on the panel, a supporting surface is arranged at the upper end of the elastic film, a through hole is formed in the middle of the supporting surface, the supporting surface and the inner wall of the lower portion of the elastic film form a cavity, a base is fixed in the cavity, a reset spring is arranged between the base and the supporting surface, a moving part is arranged on the supporting surface, an impact column is arranged at the bottom of the moving part, and a nameplate is arranged on the moving part.

2. The key structure for the industrial personal computer according to claim 1, wherein an LED lamp is arranged at the rear part of the electronic key.

3. The key structure for the industrial personal computer according to claim 1, wherein the moving member, the impact column and the base are transparent members, and the moving member and the impact column are of an integrally formed structure.

4. The industrial personal computer key structure according to claim 1, wherein the supporting surface is waved in cross section.

5. The key structure for the industrial personal computer according to claim 1, wherein a base fixing clamping groove is formed in the inner wall of the lower portion of the elastic film, and a convex edge is formed on the edge of the base corresponding to the base fixing clamping groove; the periphery of the elastic film is provided with an elastic film fixing clamping groove, and the elastic film is fixed on the panel through the elastic film fixing clamping groove.

6. The key structure for the industrial personal computer according to claim 1, wherein a support frame is further arranged on the inner wall of the elastic film, and the bottom of the support frame is connected with the base.