CN114124070A

CN114124070A - Touch key capable of being assembled

Info

Publication number: CN114124070A
Application number: CN202111248802.0A
Authority: CN
Inventors: 孙大鹏; 高丽雯; 窦胜国
Original assignee: NANJING WALLY ELECTRONICS TECHNOLOGY CO LTD
Current assignee: NANJING WALLY ELECTRONICS TECHNOLOGY CO LTD
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-03-01

Abstract

The invention discloses an assembled touch key, which comprises a strip line area and a pressing area for pressing by fingers, wherein the strip line area and the pressing area are connected and comprise seven layers which are sequentially connected into a whole: the outward appearance layer, first double-sided adhesive layer, the shielding layer, the substrate layer, the routing layer, second double-sided adhesive layer and first from the type rete, shielding layer and routing layer are the metal level, fix the two sides at the substrate layer, wherein the shielding layer is located the circuit district, respectively be equipped with a corresponding through-hole according to the one end of nip in keeping away from on second double-sided adhesive layer and first type rete, be equipped with electrically conductive double faced adhesive tape in the two through-holes, electrically conductive double faced adhesive tape is located the one side and the routing layer bonding on line layer side, the another side is equipped with the second and leaves the type rete. The touch key has the advantage of remote control.

Description

Touch key capable of being assembled

Technical Field

The invention relates to an assembled touch key.

Background

Touch keys installed on the existing control panel are basically concentrated in one area, are densely distributed, cause inconvenience in operation, and cannot be remotely controlled.

Disclosure of Invention

In order to solve the problems that the touch keys are densely distributed and cannot be remotely controlled, the invention provides an assembled touch key.

The touch key comprises a strip line area and a pressing area for pressing by fingers, wherein the strip line area and the pressing area are connected, and the touch key comprises seven layers which are sequentially connected into a whole: the outward appearance layer, first double-sided adhesive layer, the shielding layer, the substrate layer, the routing layer, second double-sided adhesive layer and first from the type rete, shielding layer and routing layer are the metal level, fix the two sides at the substrate layer, wherein the shielding layer is located the circuit district, respectively be equipped with a corresponding through-hole according to the one end of nip in keeping away from on second double-sided adhesive layer and first type rete, be equipped with electrically conductive double faced adhesive tape in the two through-holes, electrically conductive double faced adhesive tape is located the one side and the routing layer bonding on line layer side, the another side is equipped with the second and leaves the type rete. After the arrangement, the second on the conductive double-sided adhesive tape in the circuit area is peeled off from the release film layer and then is adhered to the induction points on the control panel, the touch keys are assembled on the control panel and led to positions far away from the control panel, remote control is realized, the use is convenient, and the problem that the touch keys are densely distributed on the control panel and inconvenient to operate is also reduced.

In order to improve the reliability of the touch key and facilitate the pressing of a finger, the width of the circuit area is more than 5cm and less than 8cm, the pressing area is circular, and the area of the pressing area is larger than that of the pressing surface of the finger.

In order to improve the reliability of the touch key, the appearance layer and the base material layer are both PET films, the thickness is less than 0.05mm, and the shielding layer and the routing layer are both copper layers and are fixed on two sides of the base material layer through plating.

In order to further improve touch key's reliability, the outward appearance layer thickness is 0.023mm, the substrate layer thickness is 0.05mm, the shielding layer keep away from press the limit of the one end of district and with two long limits that a limit links to each other all are in the inboard of the corresponding each limit of substrate layer, and with the corresponding each limit homogeneous phase apart from 0.5mm of substrate layer, the width that the part that the routing layer is located the circuit district is 0.8-1mm, the contour line that is located press the part of district is located the inboard of the contour line of press the part of district at the substrate layer, and two round contour lines are 0.5mm apart from, the through-hole diameter on second double-sided glue film layer and the first type rete is 3 mm.

Has the advantages that: the touch key is provided with the pressing area and the strip-shaped circuit area, and after the touch key is arranged on the control board, the strip-shaped circuit area realizes that the pressing area can be distributed at different places outside the control board, thereby solving the problem of the dense keys in the past and simultaneously realizing the remote control; the width of the circuit area is set to be more than 5cm and less than 8cm, the pressing area is set to be circular, and the area of the pressing area is larger than that of the pressing surface of the finger, so that the reliability of the touch key is improved, and the finger can press the touch key conveniently; the appearance layer and the substrate layer are both made of PET films, the thicknesses of the appearance layer and the substrate layer are less than 0.05mm, the shielding layer and the routing layer are both made of copper layers, and the shielding layer and the routing layer are fixed on two sides of the substrate layer through plating, so that the reliability of the touch key is improved; through establishing the outward appearance layer thickness to 0.023mm, substrate layer thickness is established to 0.05mm, the contour line of the substrate layer that the shielding layer is located the circuit district and apart from the contour line 0.5mm, the width of the part that the routing layer is located the circuit district is established to 0.8-1mm, lie in the contour line of the substrate layer according to the nip and apart from the contour line 0.5mm, establish the through-hole diameter on second double-sided glue film and the first type rete into 3mm, and further improve the reliability of touch button.

Drawings

FIG. 1 is an outline view of a touch key;

FIG. 2 is an exploded view of a touch key;

FIG. 3 is a schematic structural diagram of a conductive double-sided tape;

in the figure, 1, appearance layer; 2. a first double-sided adhesive layer; 3. a shielding layer, 4, a base material layer; 5. a wiring layer; 6. a second double-sided adhesive layer; 61. a conductive double-sided adhesive tape; 7. a first release film layer; 8. a pressing area; 9. and a circuit area.

Detailed Description

The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to the examples.

As shown in fig. 1-3, an assembled touch key includes a strip line region 9 and a pressing region 8 for pressing by a finger, which are connected to each other, and includes seven layers connected in sequence to form a whole: the appearance layer 1, first double-sided adhesive layer 2, shielding layer 3, substrate layer 4, routing layer 5, second double-sided adhesive layer 6 and first release film layer 7.

The length of the circuit region 9 is not particularly limited and may be set as needed, and the width of the circuit region 9 is greater than 5cm and less than 8cm, the area of the pressing region 8 is greater than the area of the pressing surface of the finger, and the shape is not particularly limited, and is, for example, a triangle, a square, or a polygon, preferably a circle.

The appearance layer 1 and the substrate layer 4 are both PET films, and the thicknesses are both less than or equal to 0.05mm, preferably, the thickness of the appearance layer 1 is 0.023mm, and the thickness of the substrate layer 4 is 0.05 mm.

The shielding layer 3 and the routing layer 5 are both metal layers and are fixed on two sides of the base material layer 4 through plating, wherein the metal layer on one side is processed into the shielding layer 3, the shielding layer 3 is positioned in the circuit area 9, the metal layer on the other side is processed into the routing layer 5, and the metal layer is preferably a copper layer. One side of one end of the shielding layer 3, which is far away from the pressing area 8, and two long sides connected with the side are arranged on the inner side of each side corresponding to the substrate layer 4, the distance between each side corresponding to the substrate layer 4 is 0.5mm, the width of the part, located in the line area 9, of the routing layer 5 is 0.8-1mm, the contour line of the part, located in the pressing area 8, of the substrate layer 4 is arranged on the inner side of the contour line of the part, located in the pressing area 8, of the substrate layer, and the distance between the contour lines of the two sides is 0.5 mm.

The appearance layer 1 is bonded and fixed on the shielding layer 3 and the base material layer 4 through the first double-sided adhesive layer 2, and an indicating pattern such as an arrow can be arranged on the surface of the appearance layer 1, which is contacted with a finger, of the pressing area 8; the first release film layer 7 is bonded and fixed on the wiring layer 5 and the substrate layer 4 through the second double-sided adhesive layer 6, and the first release film layer 7 is also used as a protective layer.

One end of the second double-sided adhesive layer 6 and one end of the first release film layer 7, which are far away from the pressing area 8, are respectively provided with a corresponding through hole, the diameter of each through hole is preferably 3mm, conductive double-sided adhesive tapes 61 are arranged in the two through holes, one surface of each conductive double-sided adhesive tape 61, which is positioned on the side of the routing layer 5, is adhered to the routing layer 5, and the other surface of each conductive double-sided adhesive tape is provided with a second release film layer (not shown) as a protective layer.

In actual manufacturing, the touch key can be punched out by laser or knife die after the layers are sequentially attached and fixed (as shown in fig. 1). In practical use, the second release film layer is peeled off to expose the conductive double-sided adhesive tape 61 and adhere the conductive double-sided adhesive tape to the sensing points on the control board, and then the first release film layer 7 is peeled off to be adhered and fixed on a passing path so as to fix the touch key, so that the touch key can be used. After the pressing area 8 is pressed, signals are transmitted to sensing points on the control panel through the wiring layer 5 and the double-sided conductive adhesive 61 of the circuit area 9, and a remote control function is achieved.

The above-mentioned techniques not specifically mentioned refer to the prior art.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The touch key capable of being assembled is characterized by comprising a connected long strip line area and a pressing area for pressing by fingers, and the touch key comprises seven layers which are sequentially connected to form a whole: the outward appearance layer, first double-sided adhesive layer, the shielding layer, the substrate layer, the routing layer, second double-sided adhesive layer and first from the type rete, shielding layer and routing layer are the metal level, fix the two sides at the substrate layer, wherein the shielding layer is located the circuit district, respectively be equipped with a corresponding through-hole according to the one end of nip in keeping away from on second double-sided adhesive layer and first type rete, be equipped with electrically conductive double faced adhesive tape in the two through-holes, electrically conductive double faced adhesive tape is located the one side and the routing layer bonding on line layer side, the another side is equipped with the second and leaves the type rete.

2. The assemblable touch key of claim 1, wherein the routing area has a width greater than 5cm and less than 8cm, the pressing area is circular, and the area is greater than the area of the pressing surface of the finger.

3. The assemblable touch key of claim 2, wherein the appearance layer and the substrate layer are both PET films having a thickness of 0.05mm or less, and the shielding layer and the routing layer are both copper layers and are fixed to both sides of the substrate layer by plating.

4. The assemblable touch key of claim 3, wherein the outer layer has a thickness of 0.023mm, the substrate layer has a thickness of 0.05mm, one side of the shielding layer at the end away from the pressing area and two long sides connected with the one side are both located inside the corresponding sides of the substrate layer, and the sides corresponding to the substrate layer are spaced apart by 0.5mm, the width of the part of the routing layer located in the routing area is 0.8-1mm, the contour line of the part located in the pressing area is located inside the contour line of the part of the substrate layer located in the pressing area, the two contour lines are spaced apart by 0.5mm, and the diameter of the through hole on the second double-sided adhesive layer and the first release film layer is 3 mm.