TWI469171B - Keypad assembly and electronic device using the same - Google Patents

Description

Button structure and electronic device having the same

The present invention relates to a button structure, and more particularly to a button structure for an electronic device.

The panel structure of the electronic device is often provided with a button structure for controlling the power switch or performing other function adjustments. With the rapid development of the electronic industry, the control precision of the buttons in the electronic device is becoming higher and higher.

The common button structure includes a pressing portion, a movable contact piece and a fixed contact. The bottom of the pressing portion is provided with a convex block, and the movable contact piece is an arched elastic piece, and the convex block abuts against the top of the arched elastic piece. Pressing the pressing portion in the button structure, the bump presses the movable contact piece to be in contact with the fixed contact; the pressing portion is released, and the movable contact piece abuts the protrusion to reset the pressing portion. There is also a button structure in which a compression spring is sleeved on the above-mentioned protrusion, and the spring can be used to support the pressing portion, and can also help to reset the pressing portion after pressing.

In the above button structure, the bump is located at the center of the bottom of the pressing portion, and the spring is supported at the central portion of the pressing portion, so that the volume of the button structure is large, which is disadvantageous for the thin design of the electronic device having the button structure.

In view of the above circumstances, it is necessary to provide a key structure that facilitates thinning of an electronic device and an electronic device having the same.

A button structure includes a button cap, a fixing bracket, and a fixing member fixedly connected to the button cap and the fixing bracket, the fixing bracket includes a frame body, a fixing portion disposed at a middle portion of the frame body, and the frame body and the fixing portion a connecting elastic portion, the button cap is fixed to the fixing portion, wherein the fixing portion comprises four protrusions extending from opposite sides thereof and fixedly connected with the elastic portion, the elastic portion is two, and each elastic portion It is not connected to the two protrusions on the same side of the fixing portion, and the elastic portion is stretched and deformed by pressing the button cap.

An electronic device includes a housing and a button structure disposed on the housing. The housing is provided with a receiving hole. The button structure includes a button cap, a fixing bracket, and a fixed connection of the button cap. a first fixing member of the fixing bracket and a second fixing member fixedly connected to the fixing bracket and the housing, the fixing bracket includes a frame body, a fixing portion disposed at a middle portion of the frame body, and the frame body and the fixing portion are connected The elastic portion, the button cap is fixed on the fixing portion, wherein the fixing portion comprises four protrusions extending from opposite sides thereof and fixedly connected with the elastic portion, the elastic portion is two, and each elastic portion is respectively The two protrusions on the same side of the fixing portion are connected, and the elastic portion is stretched and deformed by pressing the button cap.

The elastic portion of the fixing bracket of the button structure can provide an elastic restoring force to the button cap, and the elastic member and the bump are not required to be provided, so that the button structure is small in size, so as to facilitate the thin design of the electronic device.

100‧‧‧Electronic devices

101‧‧‧shell

102‧‧‧ receiving holes

103‧‧‧Key structure

20‧‧‧ button cap

21‧‧‧Top cover

212‧‧‧ joint surface

213‧‧‧ pressing surface

215‧‧‧ Containment frame

23‧‧‧ Filling Department

25‧‧‧ bottom cover

251‧‧‧through hole

30‧‧‧Fixed bracket

31‧‧‧ frame

32‧‧‧ Fixed Department

321‧‧‧through hole

323‧‧‧ bumps

35‧‧‧Flexible Department

40‧‧‧First fixture

50‧‧‧Second fixture

FIG. 1 is a schematic perspective view of an electronic device according to an embodiment of the present invention.

2 is an exploded view of the electronic device shown in FIG. 1.

3 is an exploded view of the electronic device shown in FIG. 1 in another direction.

4 is a perspective view of the fixing bracket of the button structure shown in FIG. 1.

Figure 5 is a cross-sectional view taken along line V-V of Figure 1.

The key structure of the present invention and the electronic device having the same will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIG. 1 to FIG. 3 , the electronic device 100 includes various functional modules for implementing various functions. However, in order to save space, the present embodiment focuses on the housing 101 of the electronic device 100 and is fixed on the housing 101 . The button structure 103. Specifically, in the present embodiment, the button structure 103 is a button of the main function table of the electronic device 100, and the casing 101 is a flat glass. The button structure 103 includes a button cap 20, a fixing bracket 30, a first fixing member 40, and a second fixing member 50. The first fixing member 40 fixes the button cap 20 to the fixing bracket 30. The second fixing member 50 fixes the fixing bracket 30 to the casing 101.

The button cap 20 includes a top cover 21, a filling portion 23, and a bottom cover 25. The top cover 21 has a joint surface 212 and a pressing surface 213 opposite to the joint surface 212. In the present embodiment, the pressing surface 213 is a circular arc-shaped concave surface formed on the top cover 21. The top cover 21 includes a substantially rectangular receiving frame 215 disposed at a central portion of the joint surface 212. The filling portion 23 is housed in the housing frame 215. The bottom cover 25 is substantially circular, and a through hole 251 corresponding to the receiving frame 215 is opened in the middle portion. In order to make the button cap 20 have better appearance and wear resistance, the top cover 21, the filling portion 23 and the bottom cover 25 can be made of different materials. In the embodiment, the bottom cover 25 and the filling portion 23 are made of black plastic, and the top cover 21 is made of transparent plastic with good wear resistance. The top cover 21 and the filling portion 23 and the bottom cover 25 are integrally molded by a two-color molding method.

Please refer to FIG. 3 and FIG. 4 simultaneously, the frame of the fixing bracket 30 includes a frame body 31 and a fixing portion. 32 and two elastic portions 35. Two protrusions 323 extend from opposite sides of the fixing portion 32, respectively. Two ends of each elastic portion 35 are fixedly connected to the frame body 31 and two protrusions 323 on the side of the fixing portion 32. Each of the elastic portions 35 is substantially U-shaped, and one end of each elastic portion 35 is connected to the two protrusions 323, and the fixing portion 32 protrudes from the plane of the frame body 31. A through hole 321 is defined in a middle portion of the fixing portion 32.

In the embodiment, the first fixing member 40 and the second fixing member 50 are double-sided tapes. The first fixing member 40 has the same shape as the fixing portion 32 of the fixing bracket 30. The second fixing member 50 has the same shape as the frame 31 of the fixing bracket 30.

A receiving hole 102 is defined in a portion of the casing 101. The top cover 21 of the button cap 20 is slidable in the receiving hole 102.

Referring to FIG. 1 , FIG. 2 and FIG. 5 , when the button structure 103 is assembled, the first fixing member 40 is first adhered to the fixing portion 32 of the fixing bracket 30 on the surface of the frame 31 . Then, the fixing portion 32 of the fixing bracket 30 is fixed to the bottom cover 25 of the button cap 20, so that the filling portion 23 of the button cap 20 is received in the through hole 321 of the fixing portion 32 of the fixing bracket 30. Next, the second fixing member 50 is adhered to the surface of the frame 31 of the fixing bracket 30 away from the fixing portion 32. Finally, the frame 31 of the fixing bracket 30 is fixed to the casing 101, and the top cover 21 of the button cap 20 is received in the receiving hole 102 of the casing 101.

When the top cover 21 of the button cap 20 is pressed, the top cover 21 slides toward the receiving hole 102 of the housing 101, so that the elastic portion 35 of the fixing bracket 30 is stretched and deformed. When the top cover 21 of the button cap 20 is released, the elastic portion 35 of the fixing bracket 30 is deformed back so that the button cap 20 is returned to the original position again.

The elastic portion 35 of the fixing bracket 30 of the button structure 103 can provide an elastic restoring force to the button cap 20, and the elastic member and the bump are not required to be provided. The volume is small to facilitate the thin design of the electronic device 100.

It can be understood that the first fixing member 40 and the second fixing member 50 are not limited to double-sided tape, and may be glue, screw, snap structure or the like.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧Electronic devices

101‧‧‧shell

20‧‧‧ button cap

30‧‧‧Fixed bracket

Claims (8)

A button structure comprising a button cap, a fixing bracket and a fixing member for fixing the button cap and the fixing bracket, wherein the fixing bracket comprises a frame body, a fixing portion disposed at a middle portion of the frame body, and the frame body And the elastic portion connected to the fixing portion, the button cap is fixed on the fixing portion, wherein the fixing portion comprises four protrusions extending from opposite sides thereof and fixedly connected with the elastic portion, and the elastic portion is two. Each of the elastic portions is respectively connected to the two protrusions on the same side of the fixing portion, and the elastic portion is stretched and deformed by pressing the button cap. The button structure of claim 1, wherein the button cap comprises a top cover and a filling portion fixed to the top cover. The button structure of claim 2, wherein the top cover has a bonding surface and a pressing surface opposite to the bonding surface, the top cover includes a receiving frame formed at a middle portion of the bonding surface, the filling portion is received Inside the containment box. The button structure of claim 3, wherein the pressing surface is a circular arc-shaped concave surface formed on the top cover. The button structure of claim 3, wherein the button cap further comprises a bottom cover fixed to the joint surface, and the bottom cover is provided with a through hole corresponding to the receiving frame. The button structure of claim 1, wherein the elastic portion is U-shaped, and one end of each elastic portion is connected to the two protrusions, so that the fixing portion protrudes from a plane in which the frame is located. An electronic device includes a housing and a button structure disposed on the housing. The housing is provided with a receiving hole. The button structure includes a button cap, a fixing bracket, and a fixed connection of the button cap. The first fixing member of the fixing bracket and the second fixing member fixedly connecting the fixing bracket and the housing are improved in that the fixing bracket comprises a frame body, a fixing portion disposed at a middle portion of the frame body, and the frame body and the frame An elastic portion connected to the fixing portion, the button cap being fixed to the fixing portion In the upper portion, the fixing portion includes four protrusions extending from opposite sides thereof and fixedly connected to the elastic portion, the elastic portion is two, and each elastic portion is respectively convex and convex on the same side of the fixing portion The connection is made to stretch and deform the elastic portion by pressing the button cap. The electronic device of claim 7, wherein the elastic portion is U-shaped, and one end of each elastic portion is connected to the two protrusions, so that the fixing portion protrudes from a plane in which the frame is located.