TWI428789B - Keyboard structure - Google Patents

Description

Keyboard structure

The invention relates to a keyboard structure, in particular to a keyboard structure suitable for a portable electronic device.

With the development of wireless communication and information processing technology, mobile phones, personal digital assistants (PDAs) and other portable electronic devices are emerging, allowing consumers to fully enjoy the convenience brought by high technology whenever and wherever possible. Portable electronic devices are not only used for voice transmission, but also for other data transmission, such as sending and receiving text messages, emails, and browsing web pages. The keyboard is one of the human-machine interfaces of portable electronic devices, and its role is also important. The user can input information to the portable electronic device through the keyboard to exchange data with other terminal devices and the network.

Generally, the keyboard structure includes a casing, a button pad, and a plurality of buttons disposed on the button pad. Among them, the key pad of the keyboard structure and the shell of the portable electronic device are mostly fixed by snaps or screws. If the snapping method is adopted, a snap groove needs to be opened on the housing. The size of the snap groove is not easy to control during the actual production process, and the gap between the button pad and the buckle slot is too large, which may cause the button pad to be loose. If the screw method is used, the long-term use is also likely to cause the screw position to loosen.

In view of this, it is necessary to provide a keyboard junction for a reliable portable electronic device. Structure.

A keyboard structure is applied to a portable electronic device. The keyboard structure includes a casing, a button group and at least one connecting member. The casing and the button group are fixedly connected by a connecting member, and the casing is provided with at least one a positioning post; the connecting member includes an elastic ring having a diameter slightly smaller than a diameter of the positioning post; the positioning post passes through the button set, and the elastic ring is sleeved on the positioning post.

Compared with the prior art, the keyboard structure of the portable electronic device is fixedly connected to the button group and the shell through the connecting member, and the connecting member has elasticity, so that the sleeve is tightly sleeved on the positioning post of the housing, and the positioning is reliable.

10‧‧‧Keyboard structure

11a‧‧‧ first frame

111‧‧‧End

1111‧‧‧First card slot

112‧‧‧ side wall

115‧‧‧fixed board

1152‧‧‧Second positioning column

121‧‧‧Key area

1211‧‧‧First button area

123‧‧‧Second buckle

125‧‧‧Second through hole

1261‧‧‧3rd through hole

127‧‧‧second bump

1272‧‧‧second groove

131‧‧‧First button

15‧‧‧First connector

152‧‧‧First connection

16‧‧‧Second connection

162‧‧‧Second connection

17‧‧‧shims

191‧‧‧First button body

11‧‧‧Shell

11b‧‧‧ second frame

1110‧‧‧ inner surface

1112‧‧‧Second card slot

113‧‧‧ spacer arm

1151‧‧‧First positioning column

12‧‧‧Key pad

122‧‧‧First buckle

1212‧‧‧Second button area

124‧‧‧First through hole

126‧‧‧First bump

1262‧‧‧first groove

1271‧‧‧4th through hole

13‧‧‧ button

132‧‧‧Second button

151‧‧‧First elastic ring

153‧‧‧First stud

161‧‧‧Second elastic ring

163‧‧‧second stud

19‧‧‧ Button body

192‧‧‧Second button body

1 is an exploded perspective view of a preferred embodiment of a keyboard structure of the present invention.

2 is an assembled view of a preferred embodiment of the keyboard structure of the present invention.

The keyboard structure of the present invention is applicable to portable electronic devices such as mobile phones and PDAs. In the present embodiment, a keyboard structure applied to a mobile phone will be described as an example.

Referring to FIG. 1, the keyboard structure 10 is used to press a printed circuit board (not shown) inside the mobile phone to input information. The keyboard structure 10 includes a housing 11 , a button pad 12 , a plurality of buttons 13 , a first connecting member 15 , a second connecting member 16 , a spacer 17 , and a plurality of button bodies 19 . The housing 11 and the button pad 12 are fixedly connected by the first connector 15 and the second connector 16; the button 13 is adhered to the button pad 12; the spacer 17 and the button body 19 are sequentially adhered thereto. Button pad 12.

The housing 11 is a frame outside the mobile phone, and is provided by two opposite ends 111 and opposite A second side wall 112 is disposed around the housing. A spacer arm 113 is disposed in the middle of the housing 11. The spacer arm 113 divides the housing 11 into a first frame 11a and a second frame 11b. The first frame 11a is for accommodating an electronic device (not shown) such as a circuit board or a liquid crystal display (LCD) panel. The second frame 11b is for accommodating the button pad 12. The end portion 111 extends a fixed plate 115 perpendicular to the inner surface 1110 thereof. A first positioning post 1151 and a second positioning post 1152 are respectively disposed on the fixing plate 115, and the surface of the first positioning post 1151 and the second positioning post 1152 are rough surfaces to increase the surface friction coefficient thereof. . The first positioning post 1151 is substantially a cylinder, and the second positioning post 1152 is substantially an elliptical cylinder. The second frame 11b is symmetrically opened on the inner surface of the two side walls 112 adjacent to the position of the spacer arm 113. The first card slot 1111 and the second card slot 1112 are symmetrically opened.

The button pad 12 is machined from a rectangular plate body. The button pad 12 includes a mounting surface (not shown) and an operating surface (not shown) opposite the mounting surface. A plurality of hollow button areas 121 are formed on the mounting surface of the button pad 12, and the button area 121 includes a first button area 1211 and two second button areas 1212 symmetrically opened on opposite sides of the first button area 1211. . A first buckle 122 and a second buckle 123 are symmetrically disposed at the edge of the second button area 1212, and the first buckle 122 and the second buckle 123 are respectively used for the first card slot 1111 and the second card The card slot 1112 is engaged. A first through hole 124 and a second through hole 125 are respectively defined in one side edge of the two second button regions 1212. The first bump 126 and the second bump 127 respectively extend along the outer edge of the first through hole 124 and the second through hole 125. The first through hole 1261 and the fourth through hole 1271 are respectively defined in the first protrusion 126 and the second protrusion 127, and the first groove 1262 and the second groove 1272 are respectively formed. The first recess 1262 connects the first through hole 124 and the third through hole 1261 . The second recess 1272 connects the second through hole 125 and the fourth through hole 1271. The operation surface of the button pad 12 is used to mount the spacer 17 and the button body 19.

The button 13 is made of an elastic material, such as rubber, silicone, etc., and includes a first button 131 and a plurality of second buttons 132. The shape and size of the button 13 correspond to the button area 121 of the button pad 12, and is convenient to be stuck in the button area 121 of the button pad 12.

The first connecting member 15 includes a first elastic ring 151 , a first connecting portion 152 , and a first protruding post 153 . The first elastic ring 151 and the first protrusion 153 are connected by a first connecting portion 152 . The first elastic ring 151 corresponds to the third through hole 1261. The first elastic ring 151 is substantially a hollow disk-shaped ring body made of an elastic material such as rubber, silicone or the like. The first connecting portion 152 is mated with the first recess 1262. The first protrusion 153 has a length corresponding to the depth of the first through hole 124 of the button pad 12, and is made of an elastic material such as rubber, silicone or the like.

The first connecting member 15 is received in the accommodating space formed by the first through hole 124, the first recess 1262 and the third through hole 1261, and is fixed to the button pad 12 by bonding. The first elastic ring 151 is received in the third through hole 1261 and further sleeved on the first positioning post 1151 of the housing 11 . The diameter of the first elastic ring 151 is slightly smaller than the diameter of the first positioning post 1151. When it is sleeved on the first positioning post 1151, the first elastic ring 151 is in a stretched state, due to the elastic force of the elastic ring, the first An elastic ring can be tightly sleeved on the first positioning post 1151, so that it is not easy to loosen and cause falling off. The first connecting portion 152 is received in the first recess 1262. The first protrusion 153 is received in the first through hole 124. The diameter of the first protrusion 153 is slightly larger than the diameter of the first through hole 124. When it is received in the first through hole 124, the first The elastic force of the stud 153 can be tightly coupled with the first through hole 124.

The second connecting member 16 has the same structure as the first connecting member 15 and includes a second elastic ring 161, a second connecting portion 162 and a second protruding post 163. The second elastic ring 161 is substantially a hollow circular table. The second connecting member 16 is received in the second through hole 125 and the second recess 1272 And the fourth through hole 1271 is formed in the accommodating space, and is fixed to the button pad 12 by bonding.

The spacer 17 is a sheet-like body corresponding to the shape of the key pad 12, and is made of an elastic material such as rubber, silicone or the like. The spacer 17 is provided with a plurality of pressing regions (not shown) corresponding to the button region 121. The gasket 17 is adhered to the operation surface of the button pad 12 for buffering and protecting the button when pressed.

The button body 19 includes a first button body 191 and two second button bodies 192 disposed on opposite sides of the first button body 191. The button body 19 is adhered to the pad 17 corresponding to the position of the button area 121 for pressing input information.

Referring to FIG. 1 and FIG. 2, in the assembly, the spacer 17 and the button body 19 are sequentially adhered to the operation surface of the button pad 12; and the button 13 is adhered to the button area 121 of the mounting surface of the button pad 12. The first connecting member 15 and the second connecting member 16 are respectively mounted on the mounting surface of the button pad 12; then, the button pad 12 is combined with the button 13, the first connecting member 15, the second connecting member 16, the spacer 17 and the button The body 19 is mounted on the housing 11 such that the first slot 1111 and the second slot 1112 of the housing 11 are respectively engaged with the first buckle 122 and the second buckle 123; the housing 11 is fixed The first positioning post 1151 and the second positioning post 1152 protruding from the plate 115 pass through the button pad 12, and the first elastic ring 151 and the second elastic ring 161 are respectively sleeved on the first positioning post 1151 and the second positioning post. 1152, that is, the assembly of the button structure 10 is completed.

It can be understood that the positioning post 1151 on the fixing plate 115 is at least one.

It can be understood that the button pad 12 and the button 13 can be an integrally formed button group.

It can be understood that the first card slot 1211, the second card slot 1212, the first buckle 122, and the second buckle 123 can be omitted, and only the first connector 15 and the second connector 16 are fixed. The button group and the housing 11 are connected.

It can be understood that the surfaces of the positioning posts 1151 and 1152 are rough surfaces, and a plurality of small ribs or any other protrusions are provided.

It can be understood that the first connecting portion 152 of the first connecting member 15 , the second connecting portion 162 of the first protruding post 153 and the second connecting member 16 , and the second protruding portion 163 may be omitted, only through the first elastic ring 151 . And the second elastic ring 151 fixedly connects the housing 11 and the button group.

The keyboard structure 10 of the portable electronic device is fixedly connected to the housing 11 and the button pad 12 by the first connecting member 15 and the second connecting member 16. Since the first connecting member 15 and the second connecting member 16 have elasticity, the first connection The member 15 and the second connecting member 16 are tightly sleeved on the first positioning post 1151 and the second positioning post 1152, so that the button group and the housing 11 are firmly fixed and the positioning is reliable.

10‧‧‧Keyboard structure

11a‧‧‧ first frame

111‧‧‧End

1111‧‧‧First card slot

112‧‧‧ side wall

115‧‧‧fixed board

1152‧‧‧Second positioning column

121‧‧‧Key area

1211‧‧‧First button area

123‧‧‧Second buckle

125‧‧‧Second through hole

1261‧‧‧3rd through hole

127‧‧‧second bump

1272‧‧‧second groove

131‧‧‧First button

15‧‧‧First connector

152‧‧‧First connection

16‧‧‧Second connection

162‧‧‧Second connection

17‧‧‧shims

191‧‧‧First button body

11‧‧‧Shell

11b‧‧‧ second frame

1110‧‧‧ inner surface

1112‧‧‧Second card slot

113‧‧‧ spacer arm

1151‧‧‧First positioning column

12‧‧‧Key pad

122‧‧‧First buckle

1212‧‧‧Second button area

124‧‧‧First through hole

126‧‧‧First bump

1262‧‧‧first groove

1271‧‧‧4th through hole

13‧‧‧ button

132‧‧‧Second button

151‧‧‧First elastic ring

153‧‧‧First stud

161‧‧‧Second elastic ring

163‧‧‧second stud

19‧‧‧ Button body

192‧‧‧Second button body

Claims (10)

A keyboard structure is applied to a portable electronic device. The keyboard structure includes a casing, a button group and at least one connecting member. The casing and the button group are fixedly connected by a connecting member, and the improvement is: the casing At least one positioning column is disposed; the button group is provided with an accommodating space corresponding to the connecting member, and the connecting member is fixedly received in the accommodating space, the connecting member includes an elastic ring, and the diameter of the elastic ring is slightly smaller than the positioning column The diameter of the positioning rod passes through the button group, and the elastic ring is sleeved on the positioning post to fix the button group to the housing. The keyboard structure of claim 1, wherein the housing comprises an end portion extending perpendicularly from the inner surface thereof to a fixing plate, and the positioning plate protrudes from the positioning post. The keyboard structure according to claim 1, wherein the surface of the positioning post is a rough surface. The keyboard structure of claim 1, wherein the button group comprises a button pad and a plurality of buttons, and the receiving space is opened at an edge of the button pad. The keyboard structure of claim 4, wherein the connecting member further comprises a connecting portion and a protruding post, the connecting member connecting the protruding post and the elastic ring. The keyboard structure of claim 5, wherein the accommodating space comprises a first through hole, a second through hole and a groove, and the elastic ring is received in the first through hole, and the connecting portion is received The protrusion is received in the second through hole in the groove. The keyboard structure of claim 6, wherein the stud is made of an elastic material and has a diameter slightly larger than a diameter of the second through hole. The keyboard structure of claim 1, wherein the housing further comprises a plurality of card slots, the button pad further comprising a plurality of buckles, the card slots being engaged with the buckles. The keyboard structure of claim 8, further comprising a plurality of button bodies attached to the button pads. The keyboard structure of claim 1, further comprising a gasket, the gasket being an elastic material, the gasket being adhered between the button body and the button pad.