CN102548257A - Support reinforcing device, support reinforcing piece and side key device - Google Patents

Support reinforcing device, support reinforcing piece and side key device Download PDF

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Publication number
CN102548257A
CN102548257A CN2011104342593A CN201110434259A CN102548257A CN 102548257 A CN102548257 A CN 102548257A CN 2011104342593 A CN2011104342593 A CN 2011104342593A CN 201110434259 A CN201110434259 A CN 201110434259A CN 102548257 A CN102548257 A CN 102548257A
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China
Prior art keywords
support
fpc
support reinforcing
reinforcing part
side key
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CN2011104342593A
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CN102548257B (en
Inventor
安学良
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Fuda Lingang Water Supply And Drainage Co ltd In Xiangshui County
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Huizhou TCL Mobile Communication Co Ltd
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Abstract

The invention discloses a support reinforcing device, a support reinforcing piece and a side key device. The support reinforcing device comprises a flexible printed circuit (FPC) and the support reinforcing piece. One face of the FPC is connected with an elastic sheet Dome to receive side key stress, and the other face of the FPC is connected with the support reinforcing piece. The support reinforcing piece is separated from a casing and comprises a first component and a second component. The first component and the second component are of an integrated structure. The first component of the support reinforcing piece is connected with one face of the FPC to support stress of the FPC, and the second component of the support reinforcing piece is connected with a main board printed circuit board (PCB) to support a main board. By means of the method, the technical scheme can reduce occupied space and meet requirements of current increasingly light and thin communication devices.

Description

Support reinforcing device, support reinforcing part and side key device
Technical Field
The invention relates to the technical field of communication, in particular to a support reinforcing device, a support reinforcing part and a side key device.
Background
Currently, the side key is also a non-negligible component in the design of mobile communication devices, such as mobile phones. The side key may be, for example, a volume key, a photographing key, a power-on key, or the like. The side-bond FPC (Flexible Printed Circuit) generally uses stainless steel or hard PI (polyimide) as a stiffener. FPC is a flexible printed circuit board, also called a flexible board, made of polyimide or polyester film as a base material, and PCB (printed circuit board) can be generally called a hard board. The function of the stiffening plate is generally to reinforce the forces. FPC and shell fragment Dome paste on the stiffening plate, guarantee the button and feel, design a brace rod position on the casing simultaneously and place the brace rod for fixed side key FPC and stiffening plate. Fig. 1 is a schematic view of a prior art side key device. As shown in fig. 1, the device comprises a casing 1, side keys 2, Dome 3, an FPC 4, a reinforcing plate 5, support ribs 6, a PCB 7, and an LCD 8. The supporting ribs 6 of the shell 1 fix the side keys FPC 4 and the reinforcing plate 5, the Dome 3 is tightly attached to the FPC 4, and the FPC 4 is attached to the reinforcing plate 5.
However, the existing structure occupies a large space, and especially when the side keys are located on the left and right sides of the mobile phone, the existing structure often becomes a main bottleneck of the width of the mobile phone, which is in contradiction with the increasing lightening and thinning of the mobile phone.
Disclosure of Invention
The invention mainly solves the technical problem of providing a support reinforcing device, a support reinforcing part and a side key device, which can reduce the occupied space and meet the requirement of increasingly lightening and thinning the current communication equipment.
In order to solve the technical problems, the invention adopts a technical scheme that: providing a support reinforcing device:
comprises a flexible printed circuit FPC and a support reinforcing part;
one surface of the FPC is connected with the elastic sheet Dome to receive the stress of the side key, and the other surface of the FPC is connected with the support reinforcing piece;
the bracket reinforcing part is separated from the shell and comprises a first part and a second part, and the first part and the second part are of an integral structure;
the first part of the support reinforcing part is connected with one surface of the FPC to support the stress of the FPC, and the second part of the support reinforcing part is connected with the mainboard PCB to support the mainboard.
Wherein, the support reinforcement is plastic or metal material.
When the support reinforcing part is plastic, the first part of the support reinforcing part is bonded with one side of the FPC by using gum, and the second part of the support reinforcing part is bonded with the mainboard PCB by using the gum.
When the support reinforcing part is made of a metal material, the first part of the support reinforcing part is welded with one surface of the FPC, and the second part of the support reinforcing part is welded with the mainboard PCB.
Wherein the first and second parts of the stent reinforcement are in a perpendicular relationship.
Wherein the first and second parts of the stent reinforcement form an L-shape.
In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a support reinforcement member:
the bracket reinforcing part is separated from the shell and comprises a first part and a second part, and the first part and the second part are of an integral structure;
the first part of the support reinforcing part is connected with one surface of the FPC to support the stress of the FPC, and the second part of the support reinforcing part is connected with the mainboard PCB to support the mainboard.
When the support reinforcing part is plastic, a first part of the support reinforcing part is bonded with one surface of the FPC by using gum, and a second part of the support reinforcing part is bonded with the mainboard PCB by using the gum; or,
when the support reinforcing part is made of metal materials, the first part of the support reinforcing part is welded with one surface of the FPC, and the second part of the support reinforcing part is welded with the mainboard PCB.
In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a side key device:
the flexible printed circuit board comprises side keys, a spring plate Dome, a flexible printed circuit FPC and a support reinforcing piece;
triggering the Dome by the side key after the side key is stressed;
the elastic sheet Dome is connected with the FPC and used for transmitting stress;
one surface of the FPC is connected with the elastic sheet Dome to receive the stress of the side key, and the other surface of the FPC is connected with the support reinforcing part;
the bracket reinforcing part is separated from the shell and comprises a first part and a second part, and the first part and the second part are of an integral structure;
the first part of the support reinforcing part is connected with one surface of the FPC to support the stress of the FPC, and the second part of the support reinforcing part is connected with the mainboard PCB to support the mainboard.
Wherein, when the bracket reinforcing piece is plastic, the first part of the bracket reinforcing piece is bonded with one surface of the FPC by using gum, the second part of the bracket reinforcing piece is bonded with the mainboard PCB by using gum, or,
when the support reinforcing part is made of metal materials, the first part of the support reinforcing part is welded with one surface of the FPC, and the second part of the support reinforcing part is welded with the mainboard PCB.
The embodiment of the invention has the beneficial effects that: different from the situation of the prior art, the embodiment of the invention integrates the FPC reinforcing plate and the supporting rib on the shell into a support reinforcing part, reduces a structural part and occupied space, thereby reducing the width size of the mobile phone.
Drawings
FIG. 1 is a schematic view of a prior art side key device;
FIG. 2 is a schematic view of a side key device according to an embodiment of the present invention
FIG. 3 is a schematic view of a stent reinforcement according to an embodiment of the present invention.
Detailed Description
Referring to fig. 2, a schematic diagram of a side key device according to an embodiment of the invention is shown. The embodiment of the present invention is described by taking the application of the apparatus to mobile communication equipment such as a mobile phone as an example, but is not limited thereto. As shown in fig. 2, includes:
the keyboard comprises a shell 11, side keys 12, a spring Dome13, an FPC14, a support reinforcement piece 15, a PCB16 and an LCD 18.
The housing 11 is an exterior member of the cellular phone for protecting internal parts. The side key 12, which is a moving part, triggers the Dome13 after the forced movement reaches a certain stroke. Dome13, will deform after the atress, triggers the hardware signal. The FPC14, which is a flexible circuit board, transmits hardware signals. One side of the FPC14 is connected to the Dome13 to receive the side key force, and the other side is connected to the bracket reinforcement 15. The support reinforcement member 15 is used for supporting the Dome13 and the FPC14, and may be made of plastic or metal. The PCB16, i.e., a main board, is a circuit board of the mobile phone for transmitting various circuit signals.
In fig. 2, Dome13 and FPC14 may be bonded together by an adhesive, and FPC14 and support reinforcement member 15 may be bonded together by an adhesive. The bracket reinforcement member 15 is bonded to the PCB16, i.e., the main board, with a back adhesive. If the bracket reinforcing part is a metal part, the bracket reinforcing part can be welded on the main board.
FIG. 3 is a schematic view of a stent reinforcement according to an embodiment of the present invention. As shown in fig. 3, the bracket reinforcement 15 includes a first member 51 and a second member 52, and the first member 51 and the second member 52 are connected as an integral structure. The first part 51 of the support reinforcement is connected with one side of the FPC to support the stress of the FPC, and the second part 52 of the support reinforcement is connected with the mainboard PCB to support the mainboard.
It should be noted that the first member 51 may be vertically connected to the second member 52, i.e. in a vertical relationship, or connected in other ways. The connecting position of the first member 51 and the second member 52 may be a middle position, or a middle-lower position, of the first member 51. Specifically, the shape of the bracket reinforcement 15 may be, but is not limited to, a shape in which the first member 51 and the second member 52 form an L shape, and may be other shapes.
As can be seen from fig. 2 compared with fig. 1, in the embodiment of the present invention, the FPC reinforcing plate and the support rib on the housing are integrated into one support reinforcing member, so that the occupied space is reduced, and the width of the mobile phone can be reduced.
The reduced footprint of the stent reinforcement is analyzed as follows:
among the prior art, to the design mode of side key FPC's stiffening plate and brace rod, the stiffening plate is split into a part alone, and the brace rod sets up on the casing, consequently needs occupation space separately, and the brace rod occupies 0.6mm promptly, and the stiffening plate occupies 0.4 mm. In the structure of the prior art, the space required by the structure related to the side key FPC from Dome to LCD (Liquid Crystal Display) is 1.95mm, which is specifically shown in table 1 below:
component part Space required (unit: mm)
Dome 0.3
FPC 0.25
Reinforcement plate 0.4
Support rib 0.6
Gap 0.4
Total up to 1.95
TABLE 1 statistical table of occupied space of existing structure
In the structure of the embodiment of the present invention, the space required by the structure related to the side key FPC from Dome to LCD is 1.55mm, which is specifically shown in table 2 below:
component part Space required (unit: mm)
Dome 0.3
FPC 0.25
Support reinforcement piece 0.6
Gap 0.4
Total up to 1.55
Table 2 statistical table of occupied space of structure of the present invention
According to the embodiment of the invention, the reinforcing plate and the supporting ribs are integrated into the support reinforcing part, and one structural part is reduced, namely only the support reinforcing part occupies 0.6mm and is reduced by 0.4mm, so that the space required by the side key FPC related structure can be reduced by 0.4 mm. Considering that the left and right structures of the mobile phone are symmetrical with respect to the LCD, the total saved width can reach 0.8 mm.
In addition, the existing support rib and the shell are integrated and cannot be used independently, the support reinforcing part in the embodiment of the invention is an independent part, is separated from the shell and can be used independently, and the structural design freedom degree is higher, so that the use is convenient. The bracket reinforcing device provided by the embodiment of the invention has flexible form and no specific requirements on the shape, and can meet various environmental requirements.
The support reinforcing part of the embodiment of the invention can be a single part, can be made of plastic materials or metal materials, is not limited by shell materials and a mould structure any more, and is more flexible to use.
It should be noted that the present invention is described in terms of a structure in a mobile communication device such as a mobile phone, but is not limited thereto, and the scheme of the present invention can be adopted in any similar structure, i.e., a method of supporting FPC and Dome by using a single side key FPC holder.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A support reinforcement device which characterized in that:
comprises a flexible printed circuit FPC and a support reinforcing part;
one surface of the FPC is connected with the elastic sheet Dome to receive the stress of the side key, and the other surface of the FPC is connected with the support reinforcing piece;
the bracket reinforcing part is separated from the shell and comprises a first part and a second part, and the first part and the second part are of an integral structure;
the first part of the support reinforcing part is connected with one surface of the FPC to support the stress of the FPC, and the second part of the support reinforcing part is connected with the mainboard PCB to support the mainboard.
2. The stent reinforcement device of claim 1, wherein:
the support reinforcing part is made of plastic or metal materials.
3. The stent reinforcement device of claim 2, wherein:
when the support reinforcing part is plastic, the first part of the support reinforcing part is bonded with one side of the FPC by using gum, and the second part of the support reinforcing part is bonded with the mainboard PCB by using the gum.
4. The stent reinforcement device of claim 2, wherein:
when the support reinforcing part is made of metal materials, the first part of the support reinforcing part is welded with one surface of the FPC, and the second part of the support reinforcing part is welded with the mainboard PCB.
5. The stent reinforcement device of any one of claims 1 to 4, wherein:
the first and second parts of the support reinforcement are in a perpendicular relationship.
6. The stent reinforcement device of any one of claims 1 to 4, wherein:
the first part and the second part of the bracket reinforcement form an L-shaped shape.
7. A support reinforcement, comprising:
the bracket reinforcing part is separated from the shell and comprises a first part and a second part, and the first part and the second part are of an integral structure;
the first part of the support reinforcing part is connected with one surface of the FPC to support the stress of the FPC, and the second part of the support reinforcing part is connected with the mainboard PCB to support the mainboard.
8. The stent reinforcement of claim 7, wherein:
when the support reinforcing part is plastic, the first part of the support reinforcing part is bonded with one surface of the FPC by using gum, the second part of the support reinforcing part is bonded with the mainboard PCB by using gum, or,
when the support reinforcing part is made of metal materials, the first part of the support reinforcing part is welded with one surface of the FPC, and the second part of the support reinforcing part is welded with the mainboard PCB.
9. A side key device characterized by:
the flexible printed circuit board comprises side keys, a spring plate Dome, a flexible printed circuit FPC and a support reinforcing piece;
triggering the Dome by the side key after the side key is stressed;
the elastic sheet Dome is connected with the FPC and used for transmitting stress;
one surface of the FPC is connected with the elastic sheet Dome to receive the stress of the side key, and the other surface of the FPC is connected with the support reinforcing part;
the bracket reinforcing part is separated from the shell and comprises a first part and a second part, and the first part and the second part are of an integral structure;
the first part of the support reinforcing part is connected with one surface of the FPC to support the stress of the FPC, and the second part of the support reinforcing part is connected with the mainboard PCB to support the mainboard.
10. The side key device according to claim 9, wherein:
when the support reinforcing part is plastic, a first part of the support reinforcing part is bonded with one surface of the FPC by using gum, and a second part of the support reinforcing part is bonded with the mainboard PCB by using the gum; or,
when the support reinforcing part is made of metal materials, the first part of the support reinforcing part is welded with one surface of the FPC, and the second part of the support reinforcing part is welded with the mainboard PCB.
CN201110434259.3A 2011-12-21 2011-12-21 Support reinforcing device, support reinforcing piece and side key device Active CN102548257B (en)

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Application Number Priority Date Filing Date Title
CN201110434259.3A CN102548257B (en) 2011-12-21 2011-12-21 Support reinforcing device, support reinforcing piece and side key device

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CN102548257B CN102548257B (en) 2014-06-25

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104580599A (en) * 2015-01-05 2015-04-29 惠州Tcl移动通信有限公司 Support for fixing side key FPC of mobile terminal and mobile terminal
CN105225871A (en) * 2015-08-24 2016-01-06 小米科技有限责任公司 A kind of side key structure and electronic equipment
CN105554197A (en) * 2016-01-27 2016-05-04 上海鼎讯电子有限公司 Shell and mobile terminal
CN106370328A (en) * 2016-10-20 2017-02-01 上海摩软通讯技术有限公司 Side key assembly and terminal device
CN106604587A (en) * 2016-12-22 2017-04-26 宇龙计算机通信科技(深圳)有限公司 Mobile terminal side key assembly and mobile terminal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0933940A (en) * 1995-07-14 1997-02-07 Citizen Watch Co Ltd Mount structure for semiconductor chip for driving display panel
US20100046153A1 (en) * 2008-08-19 2010-02-25 Fih (Hong Kong) Limited Key assembly and portable electronic device using the same
CN201994444U (en) * 2010-10-13 2011-09-28 惠州Tcl移动通信有限公司 Connector of double SIM (subscriber identity module) cards

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0933940A (en) * 1995-07-14 1997-02-07 Citizen Watch Co Ltd Mount structure for semiconductor chip for driving display panel
US20100046153A1 (en) * 2008-08-19 2010-02-25 Fih (Hong Kong) Limited Key assembly and portable electronic device using the same
CN201994444U (en) * 2010-10-13 2011-09-28 惠州Tcl移动通信有限公司 Connector of double SIM (subscriber identity module) cards

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104580599A (en) * 2015-01-05 2015-04-29 惠州Tcl移动通信有限公司 Support for fixing side key FPC of mobile terminal and mobile terminal
CN105225871A (en) * 2015-08-24 2016-01-06 小米科技有限责任公司 A kind of side key structure and electronic equipment
CN105225871B (en) * 2015-08-24 2017-12-12 小米科技有限责任公司 A kind of side key structure and electronic equipment
CN105554197A (en) * 2016-01-27 2016-05-04 上海鼎讯电子有限公司 Shell and mobile terminal
CN106370328A (en) * 2016-10-20 2017-02-01 上海摩软通讯技术有限公司 Side key assembly and terminal device
CN106604587A (en) * 2016-12-22 2017-04-26 宇龙计算机通信科技(深圳)有限公司 Mobile terminal side key assembly and mobile terminal

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Effective date of registration: 20201229

Address after: No. 1013, Incubation Park, Xiangshui Industrial Economic Zone, Xiangshui County, Yancheng City, Jiangsu Province

Patentee after: Yancheng shunyutong Information Technology Co.,Ltd.

Address before: 510000 No. 106 Fengze East Road, Nansha District, Guangzhou City, Guangdong Province

Patentee before: Guangzhou shengxia Intellectual Property Operation Co.,Ltd.

Effective date of registration: 20201229

Address after: 510000 No. 106 Fengze East Road, Nansha District, Guangzhou City, Guangdong Province

Patentee after: Guangzhou shengxia Intellectual Property Operation Co.,Ltd.

Address before: 516006 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District

Patentee before: HUIZHOU TCL MOBILE COMMUNICATION Co.,Ltd.

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Effective date of registration: 20240715

Address after: 224600 Coastal Economic Development Zone of Xiangshui County, Yancheng City, Jiangsu Province

Patentee after: Fuda Lingang Water Supply and Drainage Co.,Ltd. in Xiangshui County

Country or region after: China

Address before: No. 1013, Incubation Park, Xiangshui Industrial Economic Zone, Xiangshui County, Yancheng City, Jiangsu Province

Patentee before: Yancheng shunyutong Information Technology Co.,Ltd.

Country or region before: China