CN207399166U - A touch button and terminal equipment - Google Patents

Abstract

The utility model discloses a touch key including a cover plate, a metal ring, an FPC and a switch. The FPC is provided with an interface for connecting to a chip of a terminal device. The FPC includes a first part and a second part connected to the first part. The first part and the cover plate are provided on the upper surface of the metal ring. The lower surface of the metal ring is connected to the upper surface of the second part. The switch is connected to the lower surface of the second part to control the connection or disconnection of a circuit on the FPC. The utility model also discloses a terminal device including the above touch key. The touch key provided by the utility model can share a chip with other modules of the terminal device. There is no need to design a touch chip separately, which reduces the cost of raw materials and avoids the problem of affecting product reliability due to a gap between the touch chip and the metal ring.

Description

A touch button and terminal equipment

technical field

The utility model relates to a touch control device technology, in particular to a touch control button and a terminal device.

Background technique

Household appliances, industrial equipment, and mobile phones often use touch buttons to control the startup of the equipment, and when used on mobile phones, they will integrate some other functions, such as HOME, BACK, MENU and other functions.

At present, a touch button with a touch function is realized by embedding a touch chip inside the button and attaching a cover plate on the surface of the touch chip.

However, the existing touch keys have the following defects:

(1) The cost of the touch chip is high.

(2) Since there is a certain gap between the touch chip and the metal ring, water and air can easily enter the circuit and corrode the circuit, resulting in unsatisfactory product reliability.

Utility model content

In order to overcome the deficiencies of the prior art, one of the purposes of this utility model is to provide a touch button, which can share the chip with other modules of the terminal equipment, without the need to design a separate touch chip, reducing the cost of raw materials, and avoiding the There is a gap between the touch chip and the metal ring, which affects product reliability.

The second purpose of the present utility model is to provide a terminal device, the touch button of the terminal device can share the chip with other modules of the terminal device, and there is no need to design the touch chip separately, which reduces the cost of raw materials and avoids the There is a gap between the metal ring and the problem that affects product reliability.

One of purpose of the utility model adopts following technical scheme to realize:

A touch button, including a cover plate, a metal ring, an FPC and a switch, the FPC is provided with an interface for connecting with a chip of a terminal device, and the FPC includes a first part and a first part connected to the first part In the second part, the first part and the cover plate are arranged on the upper surface of the metal ring, and the lower surface of the metal ring is connected to the upper surface of the second part; The connection on the lower surface of the second part is used to control the connection or disconnection of the circuit on the FPC.

Further, the metal ring is provided with a slot passing through the upper surface and the lower surface of the metal ring, and the second part passes through the slot and is connected to the upper surface of the metal ring.

Further, the first part and the second part are bent 180° to each other and arranged back to back.

Further, it also includes a first bonding adhesive layer, and the two sides of the first bonding adhesive layer are respectively bonded to the upper surface of the metal ring and the first part.

Further, it also includes a second bonding adhesive layer, the two sides of the second bonding adhesive layer are respectively bonded to the lower surface of the metal ring and the upper surface of the second part.

Further, the metal ring is provided with a groove communicating with the groove, and the cover plate and the first part are arranged on the groove.

Further, the sum of the thicknesses of the cover plate and the first part is smaller than the depth of the groove.

Further, the switch element is a dome, a tact switch or a push-type shrapnel.

Further, the FPC also includes a connector and an extension, one end of the connector is connected to the extension, and the other end of the connector is used for electrical connection with a terminal device, the connector, the extension The output part, the second part and the first part are sequentially connected.

Two of the purpose of the utility model adopts following technical scheme to realize:

A terminal device includes the above-mentioned touch key.

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

The FPC of the touch button provided by the above technical solution is provided with an interface for connecting with the chip of the terminal device. The FPC includes a first part and a second part connected to the first part. The first part and the cover plate are arranged on the metal ring. On the upper surface, the lower surface of the metal ring is connected to the upper surface of the second part, so the touch button can share the chip with other modules of the terminal device, and there is no need to design a separate touch chip, which reduces the cost of raw materials and avoids There is a gap between the chip and the metal ring, which affects product reliability.

Description of drawings

Fig. 1 is a schematic structural diagram of a touch button provided by the present invention;

FIG. 2 is an exploded schematic diagram of the touch button in FIG. 1;

FIG. 3 is a schematic structural diagram of a metal ring of the touch button in FIG. 2;

FIG. 4 is a schematic diagram of the FPC in the natural state of the touch button in FIG. 2;

Fig. 5 is a schematic diagram of the combination process of the FPC and the metal ring of the touch button in Fig. 2, wherein part of the FPC passes through the slot of the metal ring after being bent;

FIG. 6 is a schematic diagram of the combination of the FPC and the metal ring of the touch button in FIG. 2 .

In the figure: 10, cover plate; 20, metal ring; 21, slot; 22, groove; 30, FPC; 31, first part; 32, second part; 33, connector; 34, extension part; 50. The first bonding adhesive layer; 60. The second bonding adhesive layer; 70. The third bonding adhesive layer.

Detailed ways

Below, the utility model will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, on the premise of not conflicting, the various embodiments or technical features described below can be combined arbitrarily to form new implementations. example.

Please refer to Figures 1-6, the touch button provided by the embodiment of the present invention includes a cover plate 10, a metal ring 20, an FPC30 and a switch, and the FPC30 is provided with an interface (not marked) for connecting to a chip of a terminal device. FPC30 comprises a first part 31 and a second part 32 connected with the first part 31, the first part 31 and the cover plate 10 are arranged on the upper surface of the metal ring 20, the lower surface of the metal ring 20 and the upper surface of the second part 32 Connection; the switch element is connected with the lower surface of the second part 32 for controlling the conduction or disconnection of the circuit on the FPC30.

It should be noted that the up and down here refer to the placement positions when the cover plate 10 of the touch key is on the top and the switch element is on the bottom.

The FPC30 of the touch button provided in the above embodiment is provided with an interface for connecting with a chip of a terminal device, and the FPC30 includes a first part 31 and a second part 32 connected to the first part 31, the first part 31 and the cover plate 10 It is arranged on the upper surface of the metal ring 20, and the lower surface of the metal ring 20 is connected to the upper surface of the second part 32, so the touch button can share the chip with other modules of the terminal device, and there is no need to design a separate touch chip, which reduces the cost of raw materials. cost, and avoid the problem of affecting product reliability due to the gap between the touch chip and the metal ring.

As a preferred embodiment, the metal ring 20 is provided with a slot 21 penetrating through the upper surface and the lower surface of the metal ring 20, the second part 32 passes through the slot 21 and is connected to the upper surface of the metal ring 20, the first part 31 The second part 32 is bent 180° back to back, and the first part 31 has a touch sensing function. The interface used to connect with the chip of the terminal device is set on the first part 31. When the interface on the first part 31 and When the external chip is connected, the corresponding function of the touch button can be realized. A groove 22 communicating with the groove 21 is formed on the metal ring 20 , and the cover plate 10 and the first portion 31 are disposed on the groove 22 . The sum of the thicknesses of the cover plate 10 and the first portion 31 is smaller than the depth of the groove 22 to increase user comfort.

As a preferred embodiment, the touch key also includes a first bonding adhesive layer 50, a second bonding adhesive layer 60 and a third bonding adhesive layer 70, and the two sides of the first bonding adhesive layer 50 are connected with the metal ring 20 respectively. The upper surface and the first part 31 fit together. Two surfaces of the second bonding adhesive layer 60 are respectively bonded to the lower surface of the metal ring 20 and the upper surface of the second portion 32 . The first part 31 is disposed between the metal ring 20 and the cover plate 10 , and the two sides of the third adhesive layer 70 are bonded to the first part 31 and the cover plate 10 respectively.

As a preferred embodiment, the switch is a dome, a tact switch or a push-type shrapnel. When the user presses the cover 10, the circuit on the FPC30 is turned on through the switch; when the user releases the cover 10, The switching element realizes disconnection through the switching element.

As a preferred embodiment, the FPC30 also includes a connector 33 and an extension 34, one end of the connector 33 is connected to the extension 34, and the other end of the connector 33 is used for electrical connection with the terminal equipment, the connector 33, the extension The part 34, the second part 32 and the first part 31 are sequentially connected. In this embodiment, the connector 33 , the extension part 34 , the second part 32 and the first part 31 are integrally formed and connected.

The utility model also provides a terminal device, including the above touch button, the FPC30 of the touch button is provided with an interface for connecting with the chip of the terminal device, and the FPC30 includes a first part 31 and an interface connected to the first part 31. The second part 32, the first part 31 and the cover plate 10 are arranged on the upper surface of the metal ring 20, and the lower surface of the metal ring 20 is connected to the upper surface of the second part 32, so that the touch button can be connected with other modules of the terminal device The shared chip eliminates the need to design a separate touch chip, which reduces the cost of raw materials and avoids the problem of affecting product reliability due to the gap between the touch chip and the metal ring.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. The scope of protection required by the utility model.

Claims (10)

1. A touch button, characterized in that it includes a cover plate, a metal ring, an FPC and a switch, the FPC is provided with an interface for connecting with a chip of a terminal device, and the FPC includes a first part and a The second part connected to the first part, the first part and the cover plate are arranged on the upper surface of the metal ring, and the lower surface of the metal ring is connected to the upper surface of the second part; The switch element is connected with the lower surface of the second part for controlling the connection or disconnection of the circuit on the FPC. 2. The touch button according to claim 1, wherein the metal ring is provided with a slot penetrating through the upper surface and the lower surface of the metal ring, and the second part passes through the slot And it is connected with the upper surface of the metal ring. 3 . The touch key according to claim 2 , wherein the first portion and the second portion are bent 180° to each other and arranged back to back. 4 . 4. The touch button according to claim 1, further comprising a first bonding adhesive layer, the two sides of the first bonding adhesive layer are respectively connected to the upper surface of the metal ring and the first bonding layer. body fit. 5. The touch button according to any one of claims 1-4, further comprising a second bonding adhesive layer, the two sides of the second bonding adhesive layer are respectively connected to the lower surface of the metal ring and the upper surface of the second part. 6. The touch button according to claim 2, wherein a groove communicating with the slot is provided on the metal ring, and the cover plate and the first part are arranged in the groove superior. 7 . The touch key according to claim 6 , wherein the sum of the thicknesses of the cover plate and the first portion is smaller than the depth of the groove. 8 . The touch key according to claim 5 , wherein the switch element is a dome, a tact switch or a push-type spring. 9. The touch button according to claim 5, wherein the FPC further comprises a connector and an extension, one end of the connector is connected to the extension, and the other end of the connector is used for connecting with the extension. The terminal equipment is electrically connected, and the connector, the extension part, the second part and the first part are connected in sequence. 10. A terminal device, characterized by comprising the touch button according to any one of claims 1-9.