WO2014026500A1

WO2014026500A1 - Mobile phone and key structure for ultra-narrow bottom-edge frame of said mobile phone

Info

Publication number: WO2014026500A1
Application number: PCT/CN2013/077342
Authority: WO
Inventors: 于元升; 李书星
Original assignee: 惠州Tcl移动通信有限公司
Priority date: 2012-08-17
Filing date: 2013-06-17
Publication date: 2014-02-20
Also published as: CN102821179B; CN102821179A

Abstract

A mobile phone and a key structure for an ultra-narrow bottom-edge frame of said mobile phone are disclosed. The key structure comprises a set of keys that are disposed on a front casing and a set of metal domes that correspond to said set of keys and that are disposed on a PCB. The metal domes that correspond to the bottommost row of the set of keys on the phone are disposed on the PCB on the side facing away from the set of keys, and a lever mechanism interconnected to said metal domes is disposed in the clearance area of an internal antenna and is used to relay key depressions. The present invention satisfies the requirement for a mobile phone having an ultra-narrow bottom-edge frame.

Description

Button structure of mobile phone and ultra-narrow bottom frame

Technical field

The invention relates to the field of a mobile communication terminal in which a keyboard and a lower part of a rear case are provided with an antenna bracket, and particularly relates to a distance between a bottom edge of the keyboard and a bottom edge of the mobile phone. The key structure of the internal antenna clearance area is not compressed below 1.5 mm.

Background technique

The existing mobile phone metropolis has an antenna bracket extending into the face shell in the lower part of the rear case, and an internal antenna of the mobile phone is arranged thereon, but due to hardware requirements, the internal antenna has at least a clearance height along the longitudinal projection area of the mobile phone. Need more than 7mm, which makes it with printed circuit boards (Printed Circuit Board, PC) The bottom edge of the bottom row of buttons on the B board has a distance of at least 7 mm from the lower edge of the inner antenna to the bottom edge of the internal antenna, so that the lower edge of the pot is at least the bottom edge of the mobile phone. Has reached 8.5mm (internal antenna clearance area 7mm + face thickness 1.2mm + gap between the face shell and the internal antenna 0.3mm = 8.5mm), resulting in the bottom edge of the bottom row of buttons on the keyboard to the bottom edge of the phone The distance must be 6mm or more of the bottom border width, and the width of the side border of the keyboard from the outer edge of the keyboard to the side of the mobile phone is about 1.2mm; on the other hand, if the requirements of the ultra-narrow bottom frame of the mobile phone are met, This will result in insufficient internal antenna clearance.

Therefore, the prior art still needs to be improved and developed.

technical problem

The invention provides a button structure of an ultra-narrow bottom frame of a mobile phone, which can greatly reduce the size of the bottom frame of the mobile phone when the height of the internal antenna clearance area is satisfied.

The invention also provides an ultra-narrow bottom frame mobile phone, which can solve the problem of insufficient height of the internal antenna clearance area.

Technical solution

The technical solution of the present invention is as follows: a button structure of an ultra-narrow bottom frame of a mobile phone, comprising a button group disposed on the face shell and a set of pots disposed on the PCB board corresponding to the button group, wherein: The pot piece in the bottom row of the button of the button set is disposed on the PCB board facing away from the side of the button group, and the lever mechanism associated with the pot piece is disposed in the clearance area of the internal antenna And for conducting the pressing action of the button to the corresponding pot piece.

The button structure of the ultra-narrow bottom frame of the mobile phone, wherein: the lever mechanism comprises a seesaw and a rotating shaft, two ends of the rotating shaft are fixed on the rear casing, and the sliding plate can be rotated around the rotating shaft provided on itself .

The button structure of the ultra-narrow bottom frame of the mobile phone, wherein: a lower portion of the rear case is provided with an antenna bracket, and the internal antenna is disposed on an outer side surface of the antenna bracket facing the battery cover, and the seesaw is disposed on the antenna bracket Facing the inner space of the PCB board.

The button structure of the ultra-narrow bottom frame of the mobile phone, wherein: the vertical distance of the axis of the rotating shaft to the center of the button silicone under the button is equal to the vertical axis of the rotating shaft to the center of the cup corresponding to the button distance.

The button structure of the ultra-narrow bottom frame of the mobile phone, wherein: the bottom edge of the PCB board is provided with a notch corresponding to the raft, the longitudinal section of the raft is L-shaped, and the short side of the L-type passes through The notch, the end face of the short side is used to contact the button silica gel under the button.

The button structure of the ultra-narrow bottom frame of the mobile phone, wherein: a long side of the L-shaped side is provided with a boss on a side surface of the short-side end face thereof for being arranged on the back of the PCB board and associated with the button contact.

A mobile phone includes a face shell, a PCB board and a rear case, wherein the face shell is provided with a button group, and the PCB board is sandwiched in the surface, wherein the button group is located at the bottom row of the mobile phone. The button is provided with the button structure of the ultra-narrow bottom frame of the mobile phone according to any one of the above items.

Beneficial effect

The button structure of the mobile phone and the ultra-narrow bottom frame provided by the invention adopts the technical means of setting the corresponding button on the back of the PCB board, and is set in the clearance area of the internal antenna with the pot The associated lever mechanism is used to realize the function of the bottom row of buttons of the mobile phone, thereby greatly reducing the lower edge of the bottom row of the keyboard to the bottom edge of the mobile phone without affecting the height of the internal antenna clearance area. The distance makes the width of the bottom frame consistent with the width of the top frame, and matches the side frame as a whole, which satisfies the requirements of the ultra-narrow bottom frame of the mobile phone.

DRAWINGS

1 is a cross-sectional view showing the structure of a button of an ultra narrow bottom frame of the mobile phone of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The specific embodiments and examples of the present invention are described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , FIG. 1 is a cross-sectional view of a button structure of an ultra narrow bottom frame of a mobile phone according to the present invention. Taking a mobile phone as an example, the button structure relates to a button group 120 disposed on the face shell 110 and disposed on the PCB board 130 . The button group 120 corresponding to the button group 140, the button group 120 is arranged by a plurality of

button key caps

121, 122, etc. to form a keyboard portion of the mobile phone, and the cup chip group 140 is welded by a plurality of The

die plate

141, 142 and the like on the PCB board 130; the

button key caps

121, 122 and the like in the button group 120 are in one-to-one correspondence with the

button silica gels

151, 152 and the like below, in the pot chip group 140 The

pot pieces

141, 142, and the like are also in one-to-one correspondence with the

button silicones

151, 152, and the like.

Wherein, the dome 141 corresponding to the button cap 121 of the bottom row of the mobile phone in the button group 120 is disposed on the surface of the PCB board 130 facing away from the button group 120; and the antenna 181 in the mobile phone A lever mechanism 160 is disposed in the clearance area, and is associated with the pot piece 141. Through the interlocking conduction of the lever mechanism 160, the pressing action of the button cap 121 at the bottom row of the mobile phone is transmitted to the location. The pot piece 141 on the back of the PCB board 130 corresponding to the button key cap 121 triggers the pot piece 141 to be turned on to realize the function of the bottom row of buttons of the mobile phone.

In a preferred embodiment of the ultra-narrow bottom frame button structure of the mobile phone of the present invention, taking the button in the middle of the bottom row of the mobile phone in the button group 120 as an example, the lever mechanism 160 includes a seesaw 161 and a rotating shaft 162, and the rotating shaft The 162 may be a single rotating shaft and pass through a rotating shaft hole disposed on the sill plate 161. Both ends of the rotating shaft 162 are fixed in the rotating shaft hole of the rear casing 170, and the sill plate 161 is rotatable around the rotating shaft 162. The rotation is freely performed in a small angle range to transmit the pressing action of the keycap 121 to the pan 141 by a lever principle.

In addition, the rotating shaft 162 can also be directly formed on the side walls of the two sides of the sill plate 161, and integrated with the sill plate 161, and can be integrally formed by an injection mold, thereby reducing the number of parts and simplifying the part. structure.

Further, a lower portion of the rear case 170 is provided with an antenna holder 180 disposed on an outer side surface of the antenna holder 180 facing the battery cover 190, and the sill plate 161 is disposed at the antenna holder 180 toward the PCB The inside space of the board 130 is utilized to make full use of the clearance area of the internal antenna 181.

Moreover, in order to ensure that the keys of the button group 120 are not changed due to different structures, the lever mechanism 160 may adopt a 1:1 equal force arm. Conducting the length, neither amplifying the elastic force of the pot piece 141 nor reducing the elastic force of the pot piece 141; specifically, the axis of the rotating shaft 162 to the center of the button silicone 151 under the button cap 121 The vertical distance is equal to the vertical distance of the axis of the shaft 162 to the center of the dome 141 corresponding to the button cap 121.

Further, a bottom surface of the PCB board 130 may be provided with a notch 131 corresponding to the sill plate 160. The longitudinal cross-sectional profile of the sill plate 160 is L-shaped, and the short side of the L-shaped shape passes through the notch 131. The end face of the short side is for contacting the button silicone 151 under the keycap 121.

On the basis of this, a side of the L-shaped long side facing the short side end surface thereof may be further provided with a boss 163 for contacting with the pot piece 141 disposed on the back surface of the PCB board 130 and associated with the button key cap 121. .

The present invention also provides a mobile phone based on the button structure of the ultra-narrow bottom frame of the mobile phone. As shown in FIG. 1 , the mobile phone includes a face shell 110, a PCB board 130 and a rear case 170. The face shell 110 is provided with a button. The group 120 is disposed between the face shell 110 and the rear case 170. The PCB board 130 is provided with a set of pots 140 corresponding to the button group 120, wherein: The button of the button group 120 located at the bottom row of the mobile phone is provided with the button structure of the ultra-narrow bottom frame of the mobile phone according to any one of the above.

It has been proved by practice that the bottom frame of the mobile phone in the prior art has a width of at least 6 mm. After the improvement, the bottom frame of the mobile phone of the present invention can achieve a width of 1.5 mm (the thickness of the face shell is 1.2 mm + the gap between the face shell and the internal antenna is 0.3). Mm = 1.5 mm).

It should be understood that the above description is only the preferred embodiment of the present invention, and is not sufficient to limit the technical solutions of the present invention. Those skilled in the art can, according to the spirit and principle of the present invention, Modifications, additions, substitutions, and improvements are intended to be included, and all such additions, substitutions, changes, and improvements are intended to fall within the scope of the appended claims.

Embodiments of the invention

Industrial applicability

Sequence table free content

Claims

A button structure of a mobile phone ultra-narrow bottom frame, comprising:

a set of buttons disposed on the face shell;

a set of pots corresponding to the button group on the printed circuit board, wherein the pots corresponding to the bottom row of the buttons in the button group are disposed on the side facing away from the button group Forming a circuit board, and providing a lever mechanism associated with the pot piece in the clearance area of the internal antenna, the lever mechanism for transmitting the pressing action of the button to the corresponding pot piece;

Wherein, the lever mechanism comprises a seesaw, the lower part of the rear case is provided with an antenna bracket, the internal antenna is disposed on an outer side surface of the antenna bracket facing the battery cover, and the seesaw is disposed on the antenna bracket facing the printing In the inner space of the circuit board, the sill plate is rotatable about the rotating shaft disposed on itself, and the vertical distance of the axis of the rotating shaft to the center of the button silicone under the button is equal to the axis of the rotating shaft to the button Corresponding to the vertical distance of the center of the pot.
The button structure of the ultra narrow bottom frame of the mobile phone according to claim 1, wherein the lever mechanism further comprises a rotating shaft, and both ends of the rotating shaft are fixed on the rear case.
The button structure of the ultra-narrow bottom frame of the mobile phone according to claim 2, wherein the bottom edge of the printed circuit board is provided with a notch corresponding to the raft, and the longitudinal section of the raft is L-shaped, L-shaped The short side passes through the recess, and the short side end face is used to contact the button silicone under the button.
The button structure of the ultra-narrow bottom frame of the mobile phone according to claim 3, wherein a side of the L-shaped long side facing the short-side end face is provided with a boss for being associated with the button disposed on the back of the printed circuit board The pots are in contact with each other.
A button structure of an ultra-narrow bottom frame of a mobile phone, comprising: a button group disposed on the face shell; and a set of pots corresponding to the button group disposed on the printed circuit board, wherein the button group is located in the mobile phone a pot of the bottom row of buttons is disposed on a printed circuit board facing away from the side of the button group, and a lever mechanism associated with the pot piece is disposed in a clearance area of the internal antenna for The pressing action of the button is transmitted to the corresponding pot piece.
The button structure of the ultra-narrow bottom frame of the mobile phone according to claim 5, wherein the lever mechanism comprises a seesaw and a rotating shaft, and both ends of the rotating shaft are fixed on the rear casing, and the sliding plate can be wound around the self. The rotation of the shaft is described.
The button structure of the ultra-narrow bottom frame of the mobile phone according to claim 6, wherein a lower portion of the rear case is provided with an antenna holder, and the internal antenna is disposed on an outer side surface of the antenna holder facing the battery cover, and the seesaw is disposed at The antenna mount faces the inner space of the printed circuit board.
The button structure of the ultra-narrow bottom frame of the mobile phone according to claim 6, wherein the vertical distance of the axis of the rotating shaft to the center of the button silicone under the button is equal to the axis of the rotating shaft to the corresponding piece of the button The vertical distance of the center.
The button structure of the ultra-narrow bottom frame of the mobile phone according to claim 6, wherein the bottom edge of the printed circuit board is provided with a notch corresponding to the seesaw, and the longitudinal section of the seesaw is L-shaped, L-shaped The short side passes through the recess, and the short side end face is used to contact the button silicone under the button.
The button structure of the ultra-narrow bottom frame of the mobile phone according to claim 9, wherein a side of the L-shaped long side facing the short-side end surface thereof is provided with a boss for being associated with the button disposed on the back of the printed circuit board The pots are in contact with each other.
A mobile phone comprising:

a face shell, provided with a button group;

Back shell;

a printed circuit board is disposed between the face shell and the rear case, and is provided with a set of pots corresponding to the button group, wherein the button set is located at a bottom row of the mobile phone a button structure of an ultra-narrow bottom frame of a mobile phone, wherein the button structure of the ultra-narrow bottom frame of the mobile phone comprises a button group disposed on the face shell and a set of pots disposed on the printed circuit board corresponding to the button group, Corresponding to the bottom row of the button in the button group, the pot piece is disposed on the printed circuit board facing away from the button group side, and is disposed in the clearance area of the internal antenna with the pot piece The associated lever mechanism is configured to transmit the pressing action of the button to the corresponding pot piece.
The mobile phone according to claim 11, wherein said lever mechanism includes a seesaw and a rotating shaft, and both ends of said rotating shaft are fixed to a rear case, and said rocker is rotatable about said rotating shaft provided on itself.
The mobile phone according to claim 11, wherein a lower portion of the rear case is provided with an antenna holder, and the internal antenna is disposed on an outer side surface of the antenna holder facing the battery cover, and the crotch plate is disposed on the antenna holder toward the printing Inside the inner space of the circuit board.
The mobile phone according to claim 11, wherein a vertical distance of the axis of the rotating shaft to the center of the button silicone under the button is equal to a vertical distance from the axis of the rotating shaft to the center of the cup corresponding to the button.
The mobile phone according to claim 11, wherein a bottom edge of the printed circuit board is provided with a notch corresponding to the seesaw, the longitudinal cross-sectional profile of the seesaw is L-shaped, and the short side of the L-shape passes through the The notch, the short end face is used to contact the button silicone below the button.
The mobile phone according to claim 15, wherein a side of the L-shaped long side facing the short side end face is provided with a boss for contacting the pan piece disposed on the back side of the printed circuit board and associated with the button.