TWI409841B - Button and electronic device using the same - Google Patents

Abstract

A button includes a circuit board and an elastic slice. The circuit board includes a switch electrically connected with the circuit board. The elastic slice includes a fixed part and two connecting parts, the fixed part is fixed on the circuit board. Each connecting part extends upwardly and outwardly from both sides of the fixed part. The elastic slice also includes two pressing parts extending upwardly from both sides of the fixed part, and a touch part protruded from the pressing part. The touch part faces to the switch. The pressing part is pressed to make the switch to be in contact with the connecting part. The button is thin and easy to assemble.

Description

Button and electronic device using the button

The present invention is a button and an electronic device using the button.

With the advancement of portable electronic products, in addition to meeting the performance requirements, electronic products are increasingly pursuing fashion and beauty, and the size is getting smaller and thinner. Human-machine interfaces such as buttons, etc., also require more and more fashionable, more and more lightweight, and thinner.

The buttons of the existing electronic device include a soft rubber key body made of soft silicone rubber and a PCB board carrying a soft plastic key body, and a hard plastic key top made of hard plastic is placed on the soft rubber key body, and the hard plastic key top is from the outer casing. Outstretched. A switch positioning point is provided at the bottom of the soft plastic key body, and a tact switch is provided on the PCB board. In this way, the user presses the top of the key to deform the soft rubber body, and the switch positioning point on the soft rubber key touches the light touch switch to start the function of the circuit board.

However, the conventional button realizes the button function by pressing the set soft rubber key and the hard rubber key top to make the switch positioning point and the tact switch turn on. This design makes the button generally thicker and more complicated to assemble.

In view of this, it is necessary to provide an easy to assemble and light-weight button and use The electronic device of the button.

A button includes a circuit board and a spring piece, wherein the circuit board includes a tact switch, is disposed on the circuit board, and is electrically connected to the circuit board for turning on the button. The elastic piece includes a fixing portion and is fixed to the circuit board. The connecting portion and the fixing portion are respectively fixedly connected and tilted up. The contact portion is disposed at both ends of the connecting portion and is lifted, and the contact is disposed on a side of the touch portion close to the circuit board, and the position of the contact corresponds to the position of the tact switch.

An electronic device includes an upper casing, a lower casing, and a button, wherein an outer surface of the upper casing is formed with a pressing portion. The button includes a spring piece and a circuit board. The circuit board is mounted on the lower casing. The circuit board includes a tact switch, is disposed on the circuit board, and is electrically connected to the circuit board for turning on the button. The elastic piece includes a fixing portion and is fixed to the circuit board. The connecting portion and the fixing portion are respectively fixedly connected and tilted up. The contact portion is disposed at both ends of the connecting portion and is lifted, and the contact is disposed on a side of the touch portion close to the circuit board, and the position of the contact corresponds to the position of the tact switch.

Compared with the prior art, the button of the invention eliminates the soft rubber key body and the hard rubber key top of the traditional button, and the contact function is realized only by the contact elastic piece to make the button and the tact switch function, thereby realizing the button function, therefore, the button is simple, Light and thin.

100‧‧‧Electronic equipment

11‧‧‧Upper casing

12‧‧‧ Lower case

13‧‧‧ Pressing Department

200‧‧‧ button

21‧‧‧ boards

22‧‧‧Shrap

221‧‧‧ Fixed Department

222‧‧‧Connecting Department

223‧‧‧Touching

23‧‧‧Tact switch

24‧‧‧Positioning column

25‧‧‧Positioning holes

26‧‧‧Contacts

1 is a schematic diagram of an electronic device in an embodiment.

2 is a partial cross-sectional enlarged view of the electronic device shown in FIG. 1.

Figure 3 is a perspective view of a button of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of an electronic device in the embodiment, and FIG. 2 is a partial cross-sectional enlarged view of the electronic device shown in FIG. 1 , wherein the button 200 can be used in the electronic device 100 , and the electronic device 100 includes The housing 11, the lower housing 12 and the button 200. The upper surface of the upper casing 11 is formed with a pressing portion 13. In the present embodiment, the upper casing 11 is provided with a through hole, and the elastic material is poured into the through hole to form a pressing portion 13 integral with the upper casing 11. The button 200 is mounted on the electronic device 100 through the circuit board 21 fixed to the lower case 12. In the embodiment, the fixing method may be bonding, screwing, welding, or the like. The position where the button 200 is located corresponds to the position of the pressing portion 13, and the button 200 is triggered by pressing the pressing portion 13. In the present embodiment, the pressing portion 13 has a function of automatically resetting, that is, after the pressing portion 13 is pressed, the user removes the pressing force, and the pop-up can be automatically resumed.

Please refer to FIG. 3 , which is a perspective view of a button of the present invention. The button 200 includes a circuit board 21 and a spring 22 for carrying the elastic piece 22 . In the present embodiment, the elastic piece 22 may be made of a metal material, and in other embodiments of the present invention, the elastic piece 22 may be made of other types of materials.

The circuit board 21, including the tact switch 23, is disposed on the circuit board 21 and electrically connected to the circuit board 21, and the circuit board 21 further includes a pair of positioning posts 24.

The elastic piece 22 includes a fixing portion 221. In the embodiment, the fixing portion 221 is located at an intermediate portion of the elastic piece 22 and is fixed on the circuit board 21. The fixing manner may be bonding, screwing or welding, etc. Each of the ends is provided with a positioning hole 25, and the shape of the positioning post 24 disposed on the circuit board 21 can correspond to the shape of the positioning hole 25 for inserting the positioning post 24 for fixing the elastic piece 22 to the circuit board 21. The connecting portion 222 is fixedly connected to the two sides of the fixing portion 221 and tilted Rise up. The contact portion 223 is provided at both ends of the connecting portion and lifted up. The contact 26 is disposed on a side of the contact portion 223 adjacent to the circuit board 21, and the position of the contact 26 corresponds to the position of the tact switch 23, respectively.

In operation, one of the pressing portions 13 is pressed down to press down the corresponding pressing portion 223, and the pressing portion 223 is moved downward to be elastically deformed, so that the contact 26 located on the elastic piece 22 can contact the circuit board 21 On the upper tact switch 23, the relevant circuit on the circuit board 21 is turned on, thereby realizing the transmission of the trigger signal by pressing the corresponding button of the pressing portion 13. When the pressing force or the no-pressing operation is removed, the contact portion 223 resumes lifting so that the contact 26 is separated from the tact switch 23, and at this time, there is no transmission of the key trigger signal.

The button 200 of the present invention turns on the tact switch 23 by pressing the elastic piece 22, thereby realizing the button function, eliminating the soft rubber key body and the hard rubber key top of the conventional key, and the structure is simple and light.

Further, the positioning hole 25 is fastened to the structural design of the positioning post 24, so that the movement of the elastic piece 22 when the touch portion 223 of one end is pressed may be avoided, thereby causing an erroneous operation.

It is to be understood that those skilled in the art can make various other changes and modifications in accordance with the technical concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.

200‧‧‧ button

21‧‧‧ boards

22‧‧‧Shrap

221‧‧‧ Fixed Department

222‧‧‧Connecting Department

223‧‧‧Touching

23‧‧‧Tact switch

24‧‧‧Positioning column

25‧‧‧Positioning holes

26‧‧‧Contacts

Claims (6)

A button includes a circuit board and a spring piece; the circuit board is provided with a tact switch, and the tact switch is electrically connected to the circuit board; the elastic piece includes a fixing portion, a connecting portion and a touch portion; the fixing portion is fixed on the circuit board; The fixing portion is located at an intermediate position of the elastic piece, and the connecting portion is fixedly connected to the two sides of the fixing portion and is inclined to rise; the touch portion is disposed at both ends of the connecting portion and is lifted; and the contact is disposed on the touch portion adjacent to the circuit board. On the side, the position of the contact corresponds to the position of the tact switch. The button of claim 1, wherein the elastic piece is made of a metal material. The button of claim 1, wherein a fixing hole is defined at each end of the fixing portion, and a positioning post is further disposed on the circuit board, and the positioning post is inserted into the positioning hole to fix the elastic piece. On the circuit board. An electronic device includes an upper casing, a lower casing and a button, and an outer surface of the upper casing is formed with a pressing portion, wherein the button comprises a spring piece and a circuit board; the circuit board is mounted on the lower casing, and the circuit board is provided with a tact switch, the tact switch is electrically connected to the circuit board; the elastic piece includes a fixing portion, a connecting portion and a contact portion; the fixing portion is fixed on the circuit board; the fixing portion is located at an intermediate position of the elastic piece, the connecting portion and the fixing portion The two sides are respectively fixedly connected and tilted up; the contact portion is disposed at both ends of the connecting portion and is lifted; the contact is disposed on a side of the touch portion close to the circuit board, and the position of the contact corresponds to the position of the tact switch. The electronic device of claim 4, wherein the upper casing defines a through hole, and the elastic material is cast in the through hole to form an integral body with the upper casing. Elastic pressing part. The electronic device of claim 4, wherein a positioning hole is defined in each end of the fixing portion, and a positioning post is further disposed on the circuit board, and the positioning post is inserted into the positioning hole, and the elastic piece is inserted. Fixed to the circuit board.