CN210466358U

CN210466358U - Capacitor film fixing device and capacitive touch screen

Info

Publication number: CN210466358U
Application number: CN201921120345.5U
Authority: CN
Inventors: 卓聪杰; 申刚; 邓翔
Original assignee: Chengdu Sobido Technology Co ltd
Current assignee: Chengdu Sobido Technology Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-05-05
Anticipated expiration: 2029-07-17

Abstract

The application discloses electric capacity membrane fixing device and capacitive touch screen, electric capacity membrane fixing device is including being used for two at least crossbeams fixed with the panel both sides, be equipped with an at least fixed subassembly on the crossbeam, fixed subassembly includes push pedal and coupling mechanism, the push pedal passes through coupling structure with the crossbeam is articulated, coupling structure with the junction of crossbeam is equipped with and can makes the push pedal to being close to the torsional spring of electric capacity membrane direction motion. Under the acting force of the torsion spring, the connecting mechanism drives the push plate to push the capacitor film towards the panel, so that the capacitor film is tightly attached to the panel, the positions of the capacitor film and the panel are determined, and the touch precision of the capacitor touch screen is high.

Description

Capacitor film fixing device and capacitive touch screen

Technical Field

The utility model relates to a capacitive touch screen technical field, concretely relates to electric capacity membrane fixing device and capacitive touch screen.

Background

Capacitive touch screen is through realizing touch-sensitive with the laminating of electric capacity membrane in the panel rear end, and prior art bonds electric capacity membrane and panel fixedly, makes electric capacity membrane and panel location, and the electric capacity membrane is the wearing parts, uses the support to dismantle the fixing at the panel back with the electric capacity membrane for change conveniently. However, the capacitor film is made of a flexible material, and is placed in the bracket and curled under the action of gravity, and the positioning of the curled capacitor film and the panel is changed, so that the touch is not accurate.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a capacitive film fixing device and a capacitive touch screen.

In order to overcome the deficiency of the prior art, the utility model provides a technical scheme is:

in a first aspect, the utility model provides an electric capacity membrane fixing device, its special character lies in, including being used for with two at least crossbeams fixed in panel both sides, be equipped with an at least fixed subassembly on the crossbeam, fixed subassembly includes push pedal and coupling mechanism, the push pedal passes through coupling structure with the crossbeam is articulated, coupling structure with the junction of crossbeam is equipped with and makes the push pedal to being close to the torsional spring of electric capacity membrane direction motion.

Furthermore, an air bag groove is formed in one side, close to the capacitor film, of the push plate, the projection area of the opening of the air bag groove is smaller than the projection area of the inside of the air bag groove, an air bag is arranged in the air bag groove, one part of the air bag is located in the air bag groove, and the other part of the air bag bulges out of the opening of the air bag groove.

Further, the air bag groove opening is connected with the side surface inside the air bag groove, and a stepped surface is formed in the direction close to the capacitor film.

Furthermore, the capacitor film fixing device further comprises a fastening device, and the fastening device is arranged on the cross beam and used for fixing the connecting mechanism.

Furthermore, the fastening device comprises two fastening units which are symmetrically arranged, and the two fastening units are symmetrically arranged to sequentially form a guide part, a positioning part and a clamping part along the direction close to the capacitor film.

Further, the guiding part includes two first guide sections that outwards incline, location portion includes two convex second guide sections, clamping part includes two third guide sections that inwards incline, first guide section the second guide section with the third guide section connects gradually.

Further, connection structure includes fixing base and connecting plate, the fixing base is located on the crossbeam, the connecting plate with the fixing base is articulated, push pedal and connecting plate fixed connection.

Furthermore, the number of the cross beams is three, one of the cross beams is used for being fixed with the middle of the panel, and the other two cross beams are fixed with the two ends of the panel.

In a second aspect, the present invention provides a capacitive touch panel, which is characterized in that the capacitive touch panel comprises a panel, a capacitive film and a fixing device for the capacitive film, wherein the capacitive film is fixed on the panel by the fixing device.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an electric capacity membrane fixing device, including being used for two at least crossbeams fixed with the panel both ends, be equipped with an at least fixed subassembly on the crossbeam, fixed subassembly includes push pedal and coupling mechanism, the push pedal passes through coupling structure with the crossbeam is articulated, coupling structure with the junction of crossbeam is equipped with and makes the push pedal to being close to the torsional spring of electric capacity membrane direction motion. Under the acting force of the torsion spring, the connecting mechanism drives the push plate to push the capacitor film towards the panel, so that the capacitor film is tightly attached to the panel, the positions of the capacitor film and the panel are determined, and the touch precision of the capacitor touch screen is high.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a three-dimensional structure diagram of a capacitive touch screen according to an embodiment of the present invention;

fig. 2 is a partial structural view of a capacitor film fixing device according to an embodiment of the present invention;

FIG. 3 is a top view of FIG. 2;

fig. 4 is a cross-sectional view of a fixing assembly according to an embodiment of the present invention.

In the figure: 1-beam, 2-fixing component, 3-fastening device, 4-panel, 5-capacitance film, 21-push plate, 22-connecting plate, 23-fixing seat, 24-air bag groove, 241-air bag groove opening, 242-air bag groove interior, 25-air bag, 31-fastening unit, 311-first guide section, 312-second guide section and 313-third guide section.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As mentioned in the background art, the capacitive touch screen realizes touch sensing by attaching the capacitive film to the rear end of the panel, and the capacitive film is bonded and fixed to the panel in the prior art, so that the capacitive film is positioned with the panel, and the capacitive film is a wearing part and can be detachably fixed to the back of the panel by using the bracket for replacement. However, the capacitor film is made of a flexible material, and is placed in the bracket and curled under the action of gravity, and the positioning of the curled capacitor film and the panel is changed, so that the touch is not accurate.

Referring to fig. 1 and fig. 2, the present embodiment provides a capacitor film fixing device, including at least two beams 1 for fixing with two sides of a panel 4, at least one fixing component 2 is disposed on the beam 1, the fixing component 2 includes a push plate 21 and a connecting mechanism, the push plate 21 is hinged to the beam 1 through the connecting structure, and a torsion spring capable of enabling the push plate 21 to move in a direction close to the capacitor film 5 is disposed at a connection position of the connecting structure and the beam 1.

The number of the beams 1 is three, one beam 1 is used for being fixed with the middle of the panel 4, and the other two beams 1 are fixed with two ends of the panel 4. Wherein a fixing component 2 is arranged in the middle of the beam 1 positioned in the middle of the panel 4. Two ends of the beam 1 positioned at two sides of the panel 4 are respectively provided with a fixing component 2. The connecting structure comprises a fixed seat 23 and a connecting plate 22, the fixed seat 23 is arranged on the cross beam 1, the connecting plate 22 is hinged to the fixed seat 23, and the push plate 21 is fixedly connected with the connecting plate 22.

Referring to fig. 4, on the basis of the above embodiment, an air bag groove 24 is provided on one side of the push plate 21 close to the capacitor film 5, a projected area of the air bag groove opening 241 is smaller than a projected area of the air bag groove inner part 242, an air bag 25 is provided in the air bag groove 24, a part of the air bag 25 is located in the air bag groove inner part 242, and another part bulges out from the air bag groove opening 241. The air bag groove opening 241 is connected to a side surface of the air bag groove inner 242, and forms a stepped surface in a direction approaching the capacitor film 5.

Referring to fig. 3, on the basis of the above embodiment, the capacitor film fixing device further includes a fastening device 3, and the fastening device 3 is disposed on the beam 1 and is used for fixing the connecting mechanism. The fastening device 3 comprises two fastening units 31 which are symmetrically arranged, and the two fastening units 31 are symmetrically arranged to form a guide part, a positioning part and a clamping part in sequence along the direction close to the capacitance film 5. The guide part comprises two first guide sections 311 inclining outwards, the positioning part comprises two circular arc-shaped second guide sections 312, the clamping part comprises two third guide sections 313 inclining inwards, and the first guide sections 311, the second guide sections 312 and the third guide sections 313 are connected in sequence.

When clamping is needed, the push plate 21 is pushed to rotate towards the clamping part by force, the push plate 21 is separated from the positioning part and moves towards the clamping part, the two third guide sections 313 are expanded outwards, and the air bag 25 on the push plate 21 is tightly attached to the capacitance film 5 under the action of the torsion spring. When the push plate 21 is pulled out, the two third guide sections 313 are opened towards two sides, after the push plate 21 is separated from the clamping part, the two third guide sections 313 are inclined inwards to reset, the push plate 21 is loosened, and the push plate 21 is clamped between the two circular arc-shaped second guide sections 312 of the positioning part.

When the capacitor film 5 is fixed, under the action of the torsion spring, the airbag 25 on the push plate 21 of the connecting mechanism pushes the capacitor film 5 towards the panel 4, so that the capacitor film 5 is tightly attached to the panel 4, the fastening device 3 clamps the capacitor film 5, the capacitor film 5 is in a tensioning state, and the positions of the capacitor film 5 and the panel 4 are determined. When changing electric capacity membrane 5, let fastener 3 relax, lift push pedal 21, reduce the frictional force between electric capacity membrane 5 and panel 4, put down push pedal 21 after the change is accomplished, electric capacity membrane 5 hugs closely panel 4 under the push pedal 21 effort, and a plurality of push pedals 21 simultaneous action prevents that electric capacity membrane 5 from taking place to curl.

In addition, the present embodiment further provides a capacitive touch screen, which includes a panel 4, a capacitive film 5 and the capacitive film fixing device, where the capacitive film 5 is fixed on the panel 4 by the capacitive film fixing device.

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", 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 device or element referred to 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 above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. The utility model provides a capacitance membrane fixing device, its characterized in that, including being used for two at least crossbeams fixed with the panel both sides, be equipped with an at least fixed subassembly on the crossbeam, fixed subassembly includes push pedal and coupling mechanism, the push pedal passes through coupling mechanism with the crossbeam is articulated, coupling mechanism with the junction of crossbeam is equipped with and makes the push pedal to being close to the torsional spring of capacitance membrane direction motion.

2. The capacitor film fixing device according to claim 1, wherein a side of the push plate close to the capacitor film is provided with an air bag groove, a projected area of an opening of the air bag groove is smaller than a projected area of an inner part of the air bag groove, an air bag is arranged in the air bag groove, one part of the air bag is positioned in the air bag groove, and the other part of the air bag bulges out from the opening of the air bag groove.

3. The capacitive film securing device according to claim 2, wherein the air bag groove opening is connected to a side of the air bag groove interior, forming a stepped surface in a direction approaching the capacitive film.

4. A capacitive film securing device according to any of claims 1 to 3, further comprising fastening means provided on the cross-beam for securing the connection mechanism.

5. The capacitive film fixing device according to claim 4, wherein the fastening device comprises two symmetrically arranged fastening units, and the two fastening units are symmetrically arranged to sequentially form a guide portion, a positioning portion and a clamping portion in a direction close to the capacitive film.

6. The capacitive film securing device according to claim 5, wherein the guide portion comprises two first guide sections inclined outward, the positioning portion comprises two second guide sections in the shape of circular arcs, and the clamping portion comprises two third guide sections inclined inward, the first guide section, the second guide section and the third guide section being connected in series.

7. The capacitor film fixing device according to claim 1, wherein the connecting mechanism comprises a fixing seat and a connecting plate, the fixing seat is arranged on the beam, the connecting plate is hinged to the fixing seat, and the push plate is fixedly connected to the connecting plate.

8. The capacitive film holding device of claim 1, wherein the number of the beams is three, one of the beams is used for holding the middle of the panel, and the other two beams are used for holding the two ends of the panel.

9. A capacitive touch screen comprising a panel, a capacitive film and the capacitive film fixture of claim 1, wherein the capacitive film is secured to the panel by the capacitive film fixture.