CN106604587B - Mobile terminal side key assembly and mobile terminal - Google Patents
Mobile terminal side key assembly and mobile terminal Download PDFInfo
- Publication number
- CN106604587B CN106604587B CN201611199110.0A CN201611199110A CN106604587B CN 106604587 B CN106604587 B CN 106604587B CN 201611199110 A CN201611199110 A CN 201611199110A CN 106604587 B CN106604587 B CN 106604587B
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- Prior art keywords
- unit
- mobile terminal
- flexible circuit
- side key
- reinforcing
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
- H05K1/0281—Reinforcement details thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
- H05K2201/2009—Reinforced areas, e.g. for a specific part of a flexible printed circuit
Abstract
The invention discloses a mobile terminal side key assembly and a mobile terminal, which comprise a reinforcing unit, a flexible circuit unit and a switch unit, wherein the flexible circuit unit is provided with an extension part and a connecting part extended from the extension part on a key area; the switch unit on the flexible circuit unit is provided with the reinforcing unit for local reinforcement, so that the problem of high cost caused by reinforcement of the whole flexible circuit in the prior art is solved; the reinforcement unit is spacing on mobile terminal's shell material to improve the reinforcement positioning accuracy of switch unit, also reduced the risk of off normal when switch unit constitutes, and need not to use the conducting resin through this structure, made things convenient for the dismouting operation of staff to mobile terminal side key subassembly greatly.
Description
Technical Field
The invention relates to the technical field of terminals, in particular to a mobile terminal side key assembly and a mobile terminal.
Background
A Flexible Printed Circuit (FPC) is an excellent Flexible Printed Circuit board with high reliability, has the characteristics of high wiring density, light weight, and thin thickness, and is mainly applied to various products such as a mobile phone, a notebook computer, a PDA, a digital camera, and an LCM. Compare in PCB (Printed Circuit Board), FPC has short, the volume ratio PCB is little, the weight ratio PCB is light, thickness advantage such as being thinner than PCB in the equipment man-hour, the connection work of a large amount of winding displacement can be saved in the installation of electronic product, can effectively reduce electronic product's volume and increase its convenience on carrying, reduce the weight of final product simultaneously and improve the compliance of base plate, strengthen the equipment of making three-dimensional space in the finite space.
Although the FPC has been used more and more in the mobile phone, when the FPC is provided to the keys of the mobile phone, the strength of the FPC is insufficient to provide support for the keys due to the flexibility of the FPC. As shown in fig. 1 and 2, in order to solve the problem, in the conventional implementation scheme, a metal elastic sheet is arranged for the whole key FPC, and the metal elastic sheet is adhered with the FPC, but in this implementation manner, the key FPC occupies a large space of a shell material of the mobile terminal, and a large limitation is brought to the key position setting; and the assembly is carried out through the conductive adhesive during the assembly, so that the assembly difficulty is greatly increased, and the cost is higher.
Disclosure of Invention
The invention provides a mobile terminal side key assembly and a mobile terminal, and solves the technical problem that the limitation of key position design is large due to the fact that the occupied space is large when a key FPC structure is arranged in the conventional mode of whole surface reinforcement.
In order to solve the above technical problem, the present invention provides a side key assembly of a mobile terminal, comprising: the flexible circuit comprises a reinforcing unit, a flexible circuit unit and a switch unit; the flexible circuit unit is provided with an extension part and a connecting part extending out of the extension part on a key region, and the switch unit is electrically connected to the connecting part of the flexible circuit unit; in an assembly state, the reinforcing unit is limited on a shell material of the mobile terminal and is positioned on the back of the connecting part.
In some embodiments of the present invention, the reinforcing unit is a metal reinforcing unit.
In some embodiments of the invention, the metal reinforcing unit is a stainless steel metal reinforcing unit.
In some embodiments of the present invention, the flexible circuit unit is provided with a plurality of connecting portions, each connecting portion is electrically connected to one switch unit, and a back surface of each connecting portion corresponds to one reinforcing unit.
In some embodiments of the present invention, the reinforcing unit is a U-shaped structure, and the U-shaped structure is sleeved on two sides of the shell material.
In some embodiments of the present invention, the U-shaped structure reinforcing unit is provided with a positioning portion for limiting the extending portion.
In some embodiments of the present invention, the positioning portion is a notch disposed in a U-shaped region of the U-shaped structure reinforcing unit.
In some embodiments of the invention, the notch is located in a middle position of the U-shaped area.
In order to solve the above technical problem, the present invention further provides a mobile terminal, including: a mobile terminal side key assembly as claimed in any preceding claim.
In some embodiments of the present invention, a bone position structure for limiting the reinforcing unit is disposed on the shell material at an assembly position corresponding to the reinforcing unit.
The mobile terminal side key assembly and the mobile terminal provided by the embodiment of the invention comprise a reinforcing unit, a flexible circuit unit and a switch unit, wherein the flexible circuit unit is provided with an extension part and a connecting part extended from the extension part on a key area, the switch unit is connected to the connecting part of the flexible circuit unit, and in an assembly state, the reinforcing unit is limited on a shell material of the mobile terminal and is positioned on the back of the connecting part; the switch unit on the flexible circuit unit is provided with the reinforcing unit for local reinforcement, so that the problem of high cost caused by reinforcement of the whole flexible circuit in the prior art is solved; the reinforcement unit is spacing on mobile terminal's shell material to improve the reinforcement positioning accuracy of switch unit, also reduced the risk of off normal when switch unit constitutes, and need not to use the conducting resin through this structure, made things convenient for the dismouting operation of staff to mobile terminal side key subassembly greatly.
The reinforcing unit provided by the invention is arranged to be a U-shaped structure, the U-shaped structure is fixed on the shell material, and the extending part and the connecting part of the flexible circuit board are fixed on the U-shaped structure, so that the PFC on the position of the switch unit is reinforced, the space occupation of the flexible circuit unit is reduced, the production cost caused by the arrangement of the reinforcing steel sheet is reduced, and the U-shaped structure is convenient for assembly operation of the key flexible circuit board by maintenance personnel.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of a conventional terminal-side key assembly;
FIG. 2 is an enlarged structural view of A in FIG. 1;
fig. 3 is a schematic structural diagram of a side key assembly of a mobile terminal according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a flexible circuit unit according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a reinforcing unit according to a first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a mobile terminal according to a second embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The first embodiment:
referring to fig. 3, fig. 3 is a schematic structural diagram of a side key assembly of a mobile terminal according to the present embodiment, where the side key assembly of the mobile terminal includes: a reinforcing unit 31, a flexible circuit unit 32, and a switching unit 33;
the reinforcing unit 31 is used to provide support for the switch unit 33, so that the user can trigger the switch unit 33 more easily. The switch unit 33 is arranged at the corresponding key position of the flexible circuit unit 32, at this time, the reinforcing unit 31 is arranged at the back position of the switch unit at the position corresponding to the flexible circuit unit 32, and when the mobile terminal side key assembly is assembled on the mobile terminal, the reinforcing unit 31 is directly clamped on a retaining wall on the shell material of the mobile terminal.
Specifically, the flexible circuit unit 32 is provided with an extension portion and a connection portion extending from the extension portion on the key region, and the switch unit 33 is electrically connected to the connection portion of the flexible circuit unit 32; in an assembled state, the reinforcing unit 31 is limited on the shell material of the mobile terminal and is located on the back of the connecting part.
Fig. 4 is a schematic structural diagram of the flexible circuit unit 32 provided in this embodiment, as shown in fig. 4, the flexible circuit unit 32 includes at least one extending portion 321 and at least one connecting portion 322, where the extending portion 321 is disposed on a key region of the flexible circuit unit 32, and specifically, the flexible circuit in the key region extends and protrudes outward (as shown by the hatched portion of oblique lines in fig. 4); the connection portion 322 is disposed on the extension portion 321, and specifically, the connection portion 322 is a connection structure formed by extending the flexible circuit of the extension portion 321 outwards and used for electrically connecting the switch unit 33.
In this embodiment, the extending portion 321 and the connecting portion 322 together form a key-press connection region extending along the edge of the flexible circuit unit 32, and the extending portion 321 and the connecting portion 322 may be formed in a "T" shape or an "i" shape, and may be specifically configured according to the specific shape of the reinforcing unit 31, when assembling, a worker fixes the extending portion 321 and the connecting portion 322 on the reinforcing unit 31, and then fixes the connecting portion 322 on the key position corresponding to the mobile terminal through the reinforcing unit 31, thereby implementing local reinforcement of the PFC of the terminal key.
Fig. 5 is a schematic structural diagram of the reinforcing unit 31 provided in this embodiment, where the reinforcing unit 31 includes at least one supporting surface 311 for reinforcing the flexible circuit unit 32, as shown in fig. 4, the reinforcing unit is a U-shaped reinforcing unit 31, and the U-shaped structure includes two supporting surfaces 311 and one U-shaped surface 312. The reinforcing unit 31 further includes a positioning portion 313, wherein the positioning portion 313 is disposed on the U-shaped surface, the positioning portion 313 is used for limiting the extending portion 321, so as to prevent the connecting portion 322 from deviating in position during assembly, and achieve highly accurate positioning of the switch unit 33 and the key area, preferably, the positioning portion 313 is a notch disposed on the U-shaped surface 312, specifically, the notch is a groove formed by inward recessing of the upper surface of the U-shaped surface along the vertical direction of the upper surface, or two protrusions formed by outward recessing of the two end portions of the upper surface of the U-shaped surface along the direction perpendicular to the upper surface, and the positioning portion 313 is formed by the two protrusions.
Further, in this embodiment, the notch is located in the middle of the U-shaped surface, but may also be located in other positions of the U-shaped surface, and specifically may be set according to a specific position where the extending portion 321 is located after the flexible circuit unit 32 is assembled.
In this embodiment, when the U-shaped structure reinforcing unit 31 is assembled, the reinforcing unit 31 is limited on the casing of the mobile terminal, preferably, two supporting surfaces 311 of the U-shaped structure contact with two surfaces of the casing, the surface of the casing is clamped by the two supporting surfaces 311, so that the extending portion 321 and the connecting portion 322 of the flexible circuit unit 32 are fixed on the mobile terminal, the back surfaces of the extending portion 321 and the connecting portion 322 contact with the two supporting surfaces 311 of the U-shaped structure, and the reinforcing unit 31 is limited on the position corresponding to the key by the positioning portion 313.
In order to guarantee that the reinforcing unit 31 arranged on the shell material can be more stably limited on the shell material position corresponding to the key, the embodiment further sets two raised bone position structures on the position corresponding to the shell material, and is right by setting the two bone position structures the reinforcing unit 31 is limited in the Y-axis direction of the mobile terminal, so that the problem that the reinforcing unit 31 firstly slides along the Y-axis direction is avoided.
In this embodiment, since the casing of the mobile terminal is made of plastic, and the strength of the retaining wall is relatively low, in order to improve the reinforcing strength of the switch unit 33, the reinforcing unit 31 may be a metal reinforcing unit made of metal, such as stainless steel, or a composite material with relatively high strength, such as alloy.
The reinforcing unit 31 can be directly set to a concave metal sheet besides a U-shaped structure, the metal sheet is arranged on the connecting part 322 in the flexible circuit unit 32, the corresponding bone position structure on the shell material is set to be inverted trapezoid, a trapezoid limiting groove is formed on the surface of the shell material through the upper and lower inverted trapezoid bone position structures, the connecting part 322 provided with the reinforcing metal sheet is arranged in the limiting groove, and fixation can be achieved.
In this embodiment, the flexible circuit unit 32 at least includes one connecting portion, if two or more connecting portions are disposed on the flexible circuit unit 32, the flexible circuit unit 32 is electrically connected to one switch unit 33 on each connecting portion, and meanwhile, a reinforcing unit 31 is correspondingly disposed on the back of each connecting portion, and each reinforcing unit 31 individually reinforces one connecting portion.
The mobile terminal side key assembly provided by the embodiment comprises a reinforcing unit, a flexible circuit unit and a switch unit, wherein the flexible circuit unit is provided with an extending part and a connecting part extending from the extending part on a key region, the switch unit is connected to the connecting part of the flexible circuit unit, and the reinforcing unit is arranged at the position of the flexible circuit unit where the switch unit is arranged for reinforcing the local position, so that the space occupied by the structure in the mobile terminal is greatly reduced, and the cost for reinforcing the whole flexible circuit in the prior art is also reduced; further, under the assembled state, the reinforcement unit is spacing on mobile terminal's shell material, and is located the back of connecting portion to improve switch unit's reinforcement positioning accuracy, also reduced the risk of off normal when switch unit constitutes, need not to use conducting resin through this structure, made things convenient for the dismouting operation of staff to mobile terminal side key subassembly greatly, also reached the purpose that can directly recycle when maintaining.
Second embodiment:
referring to fig. 6, fig. 6 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention, where the mobile terminal includes a side key assembly 3 of the mobile terminal, and a bone position structure for limiting the reinforcing unit is disposed on an assembly position of the casing material corresponding to the reinforcing unit. The mobile terminal side key assembly 3 comprises a reinforcing unit 31, a flexible circuit unit 32 and a switch unit 33; the flexible circuit unit 32 is provided with an extension part and a connection part extending from the extension part on a key region, and the switch unit 33 is electrically connected to the connection part of the flexible circuit unit 32; the reinforcing unit 31 is provided on the rear surface of the connecting portion.
In this embodiment, in an assembled state, the flexible circuit unit 32 is fixed on the casing 2 of the mobile terminal through the reinforcing unit 31, specifically, the casing 2 is provided with the bone position structure 21 at a position corresponding to the key, a limiting groove is formed on the surface of the casing 2 through the bone position structure 21 arranged on the surface of the casing 2, and the reinforcing unit 31 is arranged at a position corresponding to the limiting groove during assembly.
In this embodiment, when the reinforcing unit 31 is a U-shaped structure, the bone position structure 21 is disposed on any one surface of the casing 2, preferably, on the inner side close to the mobile terminal; when the reinforcing unit 31 is a metal sheet, the bone structure 21 is disposed on a side of a frame close to the mobile terminal, that is, on a side of a key close to the mobile terminal.
When the reinforcing unit 31 is a metal sheet, the shape of the rib structure 21 arranged on the surface of the shell 2 is inverted trapezoid, and the limiting groove formed on the surface of the shell 2 between every two rib structures 21 is trapezoid-shaped notch, and the connecting part provided with the reinforcing metal sheet is arranged in the limiting groove to realize fixation.
As shown in fig. 6, the reinforcing unit 31 provided in this embodiment is a U-shaped structure, the U-shaped structure includes two supporting surfaces and a U-shaped surface, the reinforcing unit 31 further includes a positioning portion, the positioning portion is disposed on the U-shaped surface, and the positioning portion is used for limiting the extending portion, so as to prevent the connecting portion from deviating when assembled, and realize highly accurate positioning of the switch unit 33 and the key region; after the U-shaped structure is limited on the shell material 2, the extending part in the flexible circuit unit 32 is arranged on the U-shaped surface, so that local position reinforcement of a key PFC of the mobile terminal is realized, the key PFC is fixed on the shell material, meanwhile, the accuracy of positioning of a key FPC switch is improved, and the risk of key assembly deviation is reduced. The position of the key corresponding to the shell material 2 is provided with the limiting bone position structure 21 to fix the reinforcing unit 31, so that the problem that the whole reinforcing needs to be fixed through conductive adhesive in the prior art is solved, the use of the conductive adhesive is reduced through the mode provided by the embodiment of the invention, the production cost is low, meanwhile, the dismounting operation of a worker on the side key assembly of the mobile terminal is greatly facilitated, the aim of directly recycling in maintenance is fulfilled, and more importantly, the structural arrangement of the reinforcing unit does not damage the flexible circuit unit.
The mobile terminal side key assembly and the mobile terminal provided by the embodiment of the invention comprise a reinforcing unit, a flexible circuit unit and a switch unit, wherein the flexible circuit unit is provided with an extension part and a connecting part extended from the extension part on a key area, the switch unit is connected to the connecting part of the flexible circuit unit, and in an assembly state, the reinforcing unit is limited on a shell material of the mobile terminal and is positioned on the back of the connecting part; the switch unit on the flexible circuit unit is provided with the reinforcing unit for local reinforcement, so that the problem of high cost caused by reinforcement of the whole flexible circuit in the prior art is solved; the reinforcement unit is spacing on mobile terminal's shell material to improve the reinforcement positioning accuracy of switch unit, also reduced the risk of off normal when switch unit constitutes, and need not to use the conducting resin through this structure, made things convenient for the dismouting operation of staff to mobile terminal side key subassembly greatly, also reached the purpose that can directly recycle when maintaining.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes may be made in the embodiments without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A mobile terminal side key assembly, comprising: the flexible circuit comprises a reinforcing unit, a flexible circuit unit and a switch unit; the flexible circuit unit is provided with an extension part and a connecting part extending out of the extension part on a key region, and the switch unit is electrically connected to the connecting part of the flexible circuit unit; under the assembled state, the reinforcement unit is limited on the shell material of the mobile terminal and is located at the back of the connecting portion, the reinforcement unit is of a U-shaped structure, the U-shaped structure comprises two supporting surfaces and a U-shaped surface, the reinforcement unit is provided with a positioning portion used for limiting the extending portion, and the positioning portion is a notch arranged on the U-shaped surface.
2. The mobile terminal side key assembly of claim 1, wherein the reinforcement unit is a metal reinforcement unit.
3. The mobile terminal side key assembly of claim 2, wherein the metal reinforcement unit is a stainless steel metal reinforcement unit.
4. The side key assembly of claim 1, wherein the flexible circuit unit is provided with a plurality of connecting portions, each connecting portion is electrically connected to one of the switch units, and a rear surface of each connecting portion corresponds to one of the reinforcement units.
5. The mobile terminal side key assembly of any of claims 1 to 4, wherein the U-shaped structure is sleeved on both sides of the casing.
6. The mobile terminal side key assembly of claim 5, wherein the notch is located at a middle position of the U-shaped face.
7. A mobile terminal characterized by comprising a mobile terminal side key assembly according to any one of claims 1 to 6.
8. The mobile terminal according to claim 7, wherein a bone position structure for limiting the reinforcing unit is disposed on the casing material at an assembly position corresponding to the reinforcing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199110.0A CN106604587B (en) | 2016-12-22 | 2016-12-22 | Mobile terminal side key assembly and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199110.0A CN106604587B (en) | 2016-12-22 | 2016-12-22 | Mobile terminal side key assembly and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106604587A CN106604587A (en) | 2017-04-26 |
| CN106604587B true CN106604587B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611199110.0A Active CN106604587B (en) | 2016-12-22 | 2016-12-22 | Mobile terminal side key assembly and mobile terminal |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846489B (en) * | 2017-11-30 | 2021-07-23 | 努比亚技术有限公司 | Side key and mobile terminal |
| CN111107187B (en) * | 2018-10-26 | 2021-09-17 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
| CN110047397A (en) * | 2019-03-27 | 2019-07-23 | 武汉华星光电技术有限公司 | Display device |
| CN112162594B (en) * | 2020-09-08 | 2023-03-10 | 华为技术有限公司 | Electronic device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100651240B1 (en) * | 2005-09-26 | 2006-12-01 | 주식회사 케이비에프 | Over-molded thin film el keypad |
| CN102238812A (en) * | 2010-04-21 | 2011-11-09 | 扬州华盟电子有限公司 | FPC (flexible printed circuit board) of mobile phone keypad module |
| CN102548257B (en) * | 2011-12-21 | 2014-06-25 | 惠州Tcl移动通信有限公司 | Support reinforcing device, support reinforcing piece and side key device |
| CN202523606U (en) * | 2012-03-30 | 2012-11-07 | 华为终端有限公司 | Electronic device |
| CN205726733U (en) * | 2016-04-08 | 2016-11-23 | 中兴通讯股份有限公司 | A kind of side switch and terminal |
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| CN106604587A (en) | 2017-04-26 |
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