CN217590780U

CN217590780U - Touch key structure of liquid crystal television

Info

Publication number: CN217590780U
Application number: CN202221678489.4U
Authority: CN
Inventors: 晋雪梅; 田会娟
Original assignee: Sichuan Changhong Electric Co Ltd
Current assignee: Sichuan Changhong Electric Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-14
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a LCD TV touch button structure belongs to LCD TV accessory technical field. The utility model discloses a touch decoration, face frame and printing board, the printing board has the touch chip that is used for realizing touch function, pin position welding at touch chip has the electrically conductive elastic post, the touch decoration is provided with the spliced pole towards one side of face frame, the printing board on have with the spliced pole via hole of spliced pole looks adaptation, touch decoration and printing board all adopt bonding mode to set up on the face frame, moreover, the steam generator is simple in structure, and is with low costs, high assembly efficiency, the tail end of spliced pole is made and is bent the processing, with the assurance decoration and the printing board connection reliable, prevent the assembly inefficacy that bonding inefficacy brought. After the touch decoration piece is assembled in place, the conductive elastic column is located between the touch decoration piece and the printed board, and has a proper compression amount, so that good contact and good touch are guaranteed. The induction distance is increased by the additionally arranged conductive elastic column, and sufficient installation space is provided for other compatible functional modules.

Description

Touch key structure of liquid crystal television

Technical Field

The utility model relates to a LCD TV touch button structure belongs to LCD TV accessory technical field.

Background

With the continuous development of large-screen liquid crystal televisions, the requirements on function difference are more and more. Cameras, touch keys, and beautiful decorations all often need to be compatible in the distribution device. In order to be compatible with a built-in camera module, touch keys, logo decorating parts with beautiful texture on the surface, an indicator light and other functions, the installation is ensured to be firm while the sensing distance is increased and the sensing structure is simplified. In order to meet the requirement of realizing the touch function, the distance between the touch panel and the touch chip of the printed board in the prior art is relatively short, and the space requirement of being compatible with other functional modules cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the touch key structure of the liquid crystal television is simple and reliable in structure and capable of increasing the induction distance.

For solving the technical problem the utility model discloses the technical scheme who adopts is: the touch key structure of the liquid crystal display television comprises a touch decorating part, a face frame and a printed board, wherein the printed board is provided with a touch chip for realizing a touch function, a conductive elastic column is welded at a pin position of the touch chip, a connecting column is arranged on one side, facing the face frame, of the touch decorating part, the printed board is provided with a connecting column via hole matched with the connecting column, a sunken groove is formed in the outer surface of the face frame, a printed board limiting cavity is formed in the inner surface of the face frame, the touch decorating part is arranged in the sunken groove and is fixedly bonded, the printed board is arranged in the printed board limiting cavity and is fixedly bonded, the bottom wall of the printed board limiting cavity is communicated with the bottom surface of the sunken groove through hole through an assembling through hole, the conductive elastic column penetrates through the assembling through hole in the face frame, one end, far away from the printed board, of the connecting column is contacted with the inner surface of the touch decorating part, the connecting column penetrates through the assembling through hole in the face frame in sequence, one end, far away from the touch decorating part has a bending part, and forms a limiting structure for the printed board.

Further, the method comprises the following steps: the touch decorating part and the face frame are fixedly bonded through a first double-sided adhesive tape.

Further, the method comprises the following steps: first two-sided adhesive tape is for the overall structure with touch decoration appearance looks adaptation, and first two-sided adhesive tape middle part is provided with keeps away empty structure.

Further, the method comprises the following steps: the printed board and the face frame are fixedly bonded through a second double-sided adhesive tape.

Further, the method comprises the following steps: the second double-sided adhesive tape is of an integral structure matched with the appearance of the printed board, and a clearance structure is arranged in the middle of the second double-sided adhesive tape.

Further, the method comprises the following steps: the conductive elastic column comprises a silica gel column, and a conductive film is fixedly arranged on the outer surface of the silica gel column.

Further, the method comprises the following steps: the central axis of the silica gel column is in a hollow structure, and one end of the silica gel column, which is far away from the printed board, is an arc contact surface.

Further, the method comprises the following steps: the connecting column is at least two pieces, and the distribution points of the connecting column are asymmetrically arranged relative to the center of the touch decorating piece.

The beneficial effects of the utility model are that: the touch decorating part and the printed board are arranged in a bonding mode, the structure is simple, the cost is low, the assembly efficiency is high, the connecting column is additionally arranged on the touch decorating part, the tail end of the connecting column is bent, the decorating part and the printed board are reliably connected, and the assembly failure caused by bonding failure is prevented. After the touch decoration piece is assembled in place, the conductive elastic column is located between the touch decoration piece and the printed board, and has a proper compression amount, so that good contact and good touch are guaranteed. The induction distance is increased by the additionally arranged conductive elastic column, and sufficient installation space is provided for other compatible functional modules.

Drawings

Fig. 1 is a schematic view of the part splitting structure of the present invention.

Fig. 2 is a schematic structural diagram of the assembled device of the present invention.

The labels in the figure are: the touch decoration piece comprises a touch decoration piece 1, a connecting column 101, a bending part 102, a first double-sided adhesive tape 2, a face frame 3, a sinking groove 301, a printed board limiting cavity 302, an assembling through hole 303, a second double-sided adhesive tape 4, a printed board 5, a connecting column via hole 501 and a conductive elastic column 6.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

As shown in fig. 1 and 2, the utility model discloses a touch decoration 1, face frame 3 and printed board 5, printed board 5 has the touch chip that is used for realizing the touch function, pin position welding at the touch chip has electrically conductive elastic column 6, touch decoration 1 is provided with spliced pole 101 towards one side of face frame 3, printed board 5 is last to have the spliced pole via hole 501 with spliced pole 101 looks adaptation, the surface of face frame 3 is provided with heavy groove 301, the internal surface is equipped with the spacing chamber 302 of printed board, touch decoration 1 sets up in heavy groove 301 and bonding fixed, printed board 5 sets up in the spacing chamber 302 of printed board and bonding fixed, be linked together through assembly through-hole 303 between the diapire of the spacing chamber 302 of printed board and the basal surface of heavy groove 301, electrically conductive elastic column 6 passes in the assembly through-hole 303 on face frame 3, electrically conductive elastic column 6 keeps away from the one end of printed board 5 and contacts with touch decoration 1 internal surface, spliced pole 101 is from assembly through-hole 303 on face frame 3 in proper order, via hole 501 on the printed board 5 passes, the spliced pole 101 has bending portion 102 that the one end of touch decoration 101 keeps away from face frame 3, this decoration forms limit structure to this board 5. To make the structure more reliable, the connecting column 101 is in at least two pieces. In order to prevent the attachment from being reversed during the assembly process, the distribution points of the attachment posts 101 are asymmetrically located with respect to the center of the touch trim 1.

The assembling through holes 303 on the face frame 3 are designed correspondingly according to the layout of the components of the product, and may be one integral body or a plurality of through holes with different shapes and specifications.

The touch garnish 1 can have both functions of a touch panel and a garnish. It is understood that, in order to satisfy the function of the touch panel, the touch decoration 1 should be a non-conductive structural member, and can be directly made of a non-conductive material. When the conductive material is adopted, a corresponding post-treatment process is required. In this embodiment, the touch decoration 1 is formed by aluminum extrusion, and the surface treatment is oxidation, and is non-conductive without any treatment (i.e., without oxygen reduction treatment or shielding oxidation treatment). In order to ensure good touch, the touch trim 1 is thin. The attachment post 101 may be formed by staking directly onto the touch trim 1. The number of the connecting columns 101 is two, parts are simplified, and the height of the connecting columns 101 is increased. The two-piece connecting post 101 is asymmetrically disposed with respect to the center of the touch trim 1.

In order to further improve the assembly efficiency, the touch decoration 1 and the face frame 3 are preferably fixed by bonding through the first double-sided adhesive tape 2. Preferably, first two-sided adhesive tape 2 is the overall structure with 1 appearance looks adaptation of touch decoration, and first two-sided adhesive tape 2 middle part is provided with the structure of keeping away the sky.

In order to further improve the assembly efficiency, the printed board 5 and the face frame 3 are preferably fixed by bonding through the second double-sided adhesive tape 4. Preferably, the second double-sided adhesive tape 4 is an integral structure matched with the printed board 5 in shape, and a clearance structure is arranged in the middle of the second double-sided adhesive tape 4.

The conductive elastic column 6 is only required to be in good elastic contact with the touch decoration 1, and the outer surface of the column can be conductive. Preferably, the conductive elastic column 6 comprises a silica gel column, and a conductive film is fixedly arranged on the outer surface of the silica gel column, and the conductive film can be generally adhered and fixed by an adhesive. In order to realize good electric conduction, the conductive film should be distributed on the whole outer surface of the silica gel column as much as possible. Preferably, the central axis position of the silica gel column is a hollow structure, and one end of the silica gel column, which is far away from the printed board 5, is an arc-shaped contact surface, so that the elastic contact with the decorative part is ensured to be good, and meanwhile, the elastic force is reduced.

The utility model discloses the accessible is implemented following step:

1. during assembly, the first double-sided adhesive tape 2 is attached to the inner surface of the touch decoration 1, namely the surface provided with the connecting column 101;

2. the touch decorating part 1 and the first double-sided adhesive tape 2 are attached to the outer surface of the face frame 3 in the sinking groove 301, and the connecting column 101 penetrates through the assembling through hole 303 in the face frame 3 and is tightly pressed after being assembled in place. The connecting columns 101 are asymmetrically distributed relative to the center of the touch decorating part 1, so that the assembling and anti-reflection effects of the touch decorating part 1 are achieved;

3. welding the conductive elastic column 6 on a touch chip of the printed board 5;

4. the second double-sided adhesive tape 4 is pasted on the side, provided with the touch chip, of the printed board 5, the middle of the second double-sided adhesive tape 4 is provided with a clearance structure, and the conductive elastic column 6 is located at the position of the clearance structure on the second double-sided adhesive tape 4;

5. the components of the printed board 5 and the second double-sided adhesive tape 4 are pasted on the inner surface of the face frame 3, the printed board 5 needs to be aligned with the printed board limiting cavity 302 of the face frame 3 when being installed, and meanwhile, the connecting column through hole 501 in the printed board 5 is aligned with and penetrates the connecting column 101 in the touch decorating part 1 and is pressed after being assembled in place. A printed board limiting cavity 302 (a three-surface limiting structure in the embodiment) is arranged on the inner surface of the face frame 3 to limit the appearance of the printed board 5; the connecting column 101 on the touch decorating part 1 penetrates into a connecting column through hole 501 arranged on the printed board 5, so that the anti-reflection effect on the assembly of the printed board 5 is achieved;

6. after the touch decoration piece is assembled in place, the connecting column 101 on the touch decoration piece 1 extends out by about 3-5mm relative to the connecting column through hole 501 arranged on the printed board 5; the end part of the connecting column 101 is subjected to bending treatment, so that the touch decorating part 1 and the printed board 5 are reliably connected, and assembly failure caused by bonding failure is prevented. After the touch decoration piece is assembled in place, the conductive elastic column 6 is located between the touch decoration piece 1 and the printed board 5, and has proper compression amount, so that good contact and good touch are guaranteed.

Claims

1. LCD TV touch button structure, including touch decoration (1), face frame (3) and printing board (5), printing board (5) have the touch chip that is used for realizing touch function, its characterized in that: the touch decorative piece is characterized in that a conductive elastic column (6) is welded at a pin position of a touch chip, a connecting column (101) is arranged on one side, facing a face frame (3), of a touch decorative piece (1), a connecting column through hole (501) matched with the connecting column (101) is formed in a printed board (5), a sunken groove (301) is formed in the outer surface of the face frame (3), a printed board limiting cavity (302) is formed in the inner surface of the face frame (3), the touch decorative piece (1) is arranged in the sunken groove (301) and is fixedly bonded, the printed board (5) is arranged in the printed board limiting cavity (302) and is fixedly bonded, the bottom wall of the printed board limiting cavity (302) and the bottom surface of the sunken groove (301) are communicated through an assembling through hole (303), the conductive elastic column (6) penetrates through the assembling through hole (303) in the face frame (3), one end, far away from the printed board (5), of the conductive elastic column (6) is contacted with the inner surface of the touch decorative piece (1), the connecting column (101) sequentially penetrates through the assembling through hole (303) in the printed board (3), and a bending portion (102) of the connecting column (101) is formed.

2. The touch key structure of the lcd tv of claim 1, wherein: the touch decorating part (1) is fixedly bonded with the face frame (3) through the first double-face adhesive tape (2).

3. The touch key structure of the lcd tv as claimed in claim 2, wherein: the first double-sided adhesive tape (2) is of an integral structure matched with the touch decorating part (1) in shape, and a clearance structure is arranged in the middle of the first double-sided adhesive tape (2).

4. The touch key structure of the lcd tv of claim 1, wherein: the printed board (5) and the face frame (3) are fixedly bonded through a second double-face adhesive tape (4).

5. The touch key structure of the LCD TV of claim 4, wherein: the second double-sided adhesive tape (4) is of an integral structure matched with the appearance of the printed board (5), and a clearance structure is arranged in the middle of the second double-sided adhesive tape (4).

6. The touch key structure of the lcd-tv set according to claim 1, wherein: the conductive elastic column (6) comprises a silica gel column, and a conductive film is fixedly arranged on the outer surface of the silica gel column.

7. The touch key structure of the lcd tv as claimed in claim 6, wherein: the central axis position of the silica gel column is a hollow structure, and one end of the silica gel column, which is far away from the printed board (5), is an arc contact surface.

8. The touch key structure of the LCD TV according to any one of claims 1 to 7, characterized in that: the connecting columns (101) are at least two, and the distribution points of the connecting columns (101) are asymmetrically arranged relative to the center of the touch decoration (1).