TWI469167B - 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 compression 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 compression 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.

The utility model relates to a button structure, which comprises a button cap, a fixing bracket and a fixing member fixedly connecting the button cap and the fixing bracket. The fixing bracket comprises two supporting portions, two connecting portions, a fixing portion and two elastic portions, and two ends of each connecting portion The two supporting portions are connected to the two supporting portions, and the two supporting portions and the two connecting portions jointly form a frame. The fixing portion is located in the middle of the frame body, and the connecting portion and the fixing portion are respectively connected to the two ends of each elastic portion. The button cap is fixed on the fixing portion, and the elastic portion is used to provide an elastic restoring force to 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 comprises two supporting portions, two connecting portions, a fixing portion and two elastic portions, and each connecting portion has two ends respectively Connecting the two supporting portions to form a plane opposite to the plane formed by the two supporting portions, so that the two elastic portions protrude from the plane of the two supporting portions, and the two supporting portions and the two connecting portions together form a frame. The fixing portion is located at an inner portion of the frame, and the two ends of each elastic portion are respectively connected to the connecting portion and the fixing portion. The button cap is fixed on the fixing portion, and the elastic portion is used to provide an elastic restoring force to 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‧‧‧Support

32‧‧‧ Fixed Department

321‧‧‧through hole

34‧‧‧Connecting Department

35‧‧‧Flexible Department

40‧‧‧First fixture

50‧‧‧Second fixture

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

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

3 is an exploded perspective 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.

Referring to FIG. 1 and FIG. 2, 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.

Referring to FIG. 3 to FIG. 4 , the fixing bracket 30 includes two supporting portions 31 , a fixing portion 32 , two connecting portions 34 , and four elastic portions 35 . The two ends of each connecting portion 34 are fixedly connected to the two supporting portions 31, respectively, so that the two supporting portions 31 and the two connecting portions 34 together form a substantially rectangular frame. Each connecting portion 34 is approximately U-shaped and is connected to the two supporting portions 31. A step opposite to the plane formed by the two supporting portions 31 is formed such that the four elastic portions 35 protrude from the plane in which the two supporting portions 31 are located. Each of the elastic portions 35 is substantially hat-shaped, and the four elastic portions 35 are symmetrically disposed on opposite sides of the fixing portion 32. The fixing portion 32 is disposed at a middle portion of the frame body, and opposite sides of the fixing portion 32 are fixedly connected to the middle portions of the two connecting portions 34, respectively. 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 is identical to the support portion 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 surface of the fixing portion 32 of the fixing bracket 30 near the supporting portion 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 support portion 31 of the fixing bracket 30 away from the fixing portion 32. Finally, the support portion 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. The elastic portion 35 can also be two and can be asymmetrically disposed at the edge of the fixing portion 32 of the fixing bracket 30.

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 (9)

A button structure comprising a button cap, a fixing bracket and a fixing member fixedly connecting the button cap and the fixing bracket, wherein the fixing bracket comprises two supporting portions, two connecting portions, a fixing portion and two elastic portions, each of The two ends of the connecting portion are respectively connected to the two supporting portions, and the two supporting portions and the two connecting portions jointly form a frame, the fixing portion is located in the middle of the frame body, and the two ends of each elastic portion are respectively connected to the connecting portion And the fixing portion, the button cap is fixed on the fixing portion, and the elastic portion is used to provide an elastic restoring force to 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 each of the connecting portions is connected with the two supporting portions to form a step opposite to a plane formed by the two supporting portions, so that the two elastic portions protrude from the two supporting portions. The plane. The button structure of claim 6, wherein the two elastic portions are hat-shaped and symmetrically disposed on opposite sides of the fixing portion. An electronic device includes a housing and a button structure disposed on the housing, the housing is provided with a receiving hole, and the button structure comprises a button cap, a fixing bracket and a solid body received in the receiving hole The first fixing member connecting the button cap and the fixing bracket and the second fixing member fixedly connecting the fixing bracket and the housing are improved in that the fixing bracket comprises two supporting portions, two connecting portions, a fixing portion and two elastic portions. The two ends of each connecting portion are respectively connected with the two supporting portions to form a step opposite to the plane formed by the two supporting portions, so that the two elastic portions protrude from the plane of the two supporting portions, the two supporting portions and the second The connecting portion is formed in a middle portion of the frame, and the two ends of each elastic portion are respectively connected to the connecting portion and the fixing portion, and the button cap is fixed on the fixing portion, and the elastic portion is used for Provides elastic restoring force to the button cap. The electronic device of claim 8, wherein the two elastic portions are hat-shaped and symmetrically disposed on opposite sides of the fixed portion.