CN112272443B - Reinforcing structure and flexible circuit board with same - Google Patents
Reinforcing structure and flexible circuit board with same Download PDFInfo
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- CN112272443B CN112272443B CN202010976127.2A CN202010976127A CN112272443B CN 112272443 B CN112272443 B CN 112272443B CN 202010976127 A CN202010976127 A CN 202010976127A CN 112272443 B CN112272443 B CN 112272443B
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- piece
- reinforcing
- accommodating space
- limiting
- moving
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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
- 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
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
Abstract
The invention discloses a reinforcing structure and a flexible circuit board with the same, wherein the reinforcing structure is an annular structure consisting of a plurality of reinforcing units, each reinforcing unit comprises a base piece, one end of each base piece is a fixing part, and the other end of each base piece is provided with an accommodating space; the limiting piece is positioned in the accommodating space, and a limiting groove is formed in the limiting piece; the moving piece is positioned in the limiting groove; the two adjacent reinforcing units on the same side are connected through the moving piece, the directions of the limiting grooves are consistent, the moving piece is connected with one of the reinforcing units, and the moving piece can move in the limiting groove of the other reinforcing unit. The invention can protect the protector from multiple directions under the condition of being easily subjected to external forces in various directions in the transportation or installation process, thereby playing a better protection role.
Description
Technical Field
The invention relates to the technical field of flexible circuit boards, in particular to a reinforcing structure and a flexible circuit board with the same.
Background
With the continuous development of foldable electronic products such as foldable mobile phones and slider phones, Flexible Printed Circuit Boards (FPCBs) having the characteristics of being light, thin, short, small and bendable are widely used in electronic products to realize electrical connection between different circuits. In order to obtain an FPCB having a better flex performance, it is a hot point of research to improve the flex performance of a base film material used for the FPCB. See the literature, fluidic Insulation Magnifize, Volume5, Issue 1, Jan. -Feb., 1989 Papers: 15-23, "Applications of Polyimide Films to the electric and Electronic Industries in Japan".
In order to meet the design requirement of multi-functionalization of foldable electronic products, the number of electronic components mounted on the surface of the FPCB is correspondingly increased. However, compared with a rigid circuit board, the FPCB having a good flexibility and folding performance has a small mechanical strength and a low carrying capacity, and when an electronic device is mounted in a use process, such as a Surface Mount Technology (SMT), the FPCB is prone to crack or be damaged, and cannot carry a larger mass or a larger number of electronic devices, which hinders the development of realizing multi-functionalization of foldable electronic products.
Currently, the industry generally laminates a reinforcing sheet made of Polyimide (PI) material on the surface of a flexible substrate through an adhesive layer made of epoxy resin to manufacture a reinforced FPCB with high carrying capacity. However, the reinforcing sheet has limited protection performance, and cannot protect the protection device from multiple directions, especially for devices such as a temperature sensor, the device is very easily subjected to external forces from multiple directions during transportation or installation, and the reinforcing sheet in the prior art cannot play a good protection role on the temperature sensor.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above problems occurring in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: a reinforcing structure is an annular structure consisting of a plurality of reinforcing units, each reinforcing unit comprises,
one end of the base piece is a fixing part, and the other end of the base piece is provided with an accommodating space;
the limiting piece is positioned in the accommodating space, and a limiting groove is formed in the limiting piece; and the number of the first and second groups,
the moving piece is positioned in the limiting groove;
the two adjacent reinforcing units on the same side are connected through the moving piece, the directions of the limiting grooves are consistent, the moving piece is connected with one of the reinforcing units, and the moving piece can move in the limiting groove of the other reinforcing unit.
Preferably, the base member comprises a fixing part, a stressed part and a connecting part, the fixing part is used for external connection, the stressed part is higher than the fixing part, and the stressed part is connected with the fixing part through the inclined connecting part; the accommodating space is formed between the stress part and the fixing part;
wherein the connecting portion has elasticity.
Preferably, the base member is integrally formed by an elastic metal sheet or an elastic plastic sheet, and two sides of the accommodating space penetrate through the accommodating space.
Preferably, the height of the limiting member located in the accommodating space is lower than that of the stressed portion, and the limiting groove in the limiting member extends along the penetrating direction of the accommodating space.
Preferably, the moving member is substantially in the shape of a strip, one end of the moving member is provided with a protruding portion facing the force receiving portion, and the protruding portion is used for being connected with the base member.
Preferably, the other end of the moving member is also provided with a boss, the limiting member is further provided with a holding groove communicated with the limiting groove and extending along the penetrating direction of the holding space, and the holding groove can hold the boss at the other end of the moving member to move.
Preferably, the force-bearing part is also provided with stop parts in the accommodating space, the stop parts are distributed on two sides of the penetrating direction of the accommodating space, and the stop parts can be in contact with the protruding parts of the moving parts.
Preferably, the protruding part is further provided with an accommodating cavity capable of accommodating the stop part, and the base part is connected with the moving part through the matching of the stop part and the accommodating cavity.
Preferably, the length of the accommodating cavity in the direction perpendicular to the penetrating direction of the accommodating space is greater than the length of the stopper in the direction perpendicular to the penetrating direction of the accommodating space.
The invention also discloses a flexible circuit board with the reinforcing structure, wherein a sensor assembly is arranged on the flexible circuit board, the reinforcing structure is positioned at the sensor assembly, and the sensor assembly is positioned in the annular structure of the reinforcing structure;
in the reinforcing structure, the base member is fixedly connected with the flexible circuit board through the fixing part, and the limiting part is fixedly connected with the flexible circuit board.
The invention has the beneficial effects that: when the protected internal device is subjected to external force, particularly external force in the direction of the limiting groove, the moving part moves in the limiting groove to play a role in buffering in the transportation or installation and use process, so that the protection purpose is realized; because the reinforcing structure is annular, external forces in the longitudinal direction and the transverse direction can be counteracted, and the protection is more comprehensive; when the external force disappears, the flexible circuit board can be restored to the initial state under the self elasticity of the flexible circuit board; under the condition that the protector is extremely easy to be subjected to the external force action in various directions in the transportation or installation process, the protector can be protected from multiple directions, and a good protection effect is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the reinforcing structure of the present invention;
FIG. 2 is a schematic structural view of a base member of the present invention;
FIG. 3 is a schematic view of two reinforcement units of the present invention connected to each other;
FIG. 4 is a schematic structural view of the limiting member in FIG. 3;
FIG. 5 is a schematic view of a connection structure between a moving element and a limiting element according to the present invention;
FIG. 6 is a schematic cross-sectional view of a connection between a moving element and a position limiting element according to the present invention;
FIG. 7 is a schematic view of a stopper having a rubber bumper within the stopper of the present invention;
FIG. 8 is a first structural form of a position limiting member according to the present invention;
FIG. 9 is a second structure of a position limiting member according to the present invention;
FIG. 10 is a schematic structural diagram of a flexible printed circuit board with a reinforcing structure according to the present invention;
fig. 11 is a schematic view of the structure at the sensor assembly of fig. 10.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example 1
Referring to fig. 1, in a first embodiment of the present invention, a reinforcement structure is provided, where the reinforcement structure 100 is an annular structure composed of a plurality of reinforcement units 110, the reinforcement structure 100 is mainly used for a flexible circuit board, and mainly protects internal devices of the annular structure, specifically, the reinforcement unit 110 includes a base member 111, one end of the base member 111 is a fixing portion 111-1, the fixing portion 111-1 is used for being connected with an external device to fix the whole reinforcement unit 110, and the other end of the base member 111 is provided with an accommodating space N1; the limiting piece 112 is located in the accommodating space N1, and a limiting groove 112-1 is formed in the limiting piece 112; the moving part 113, the moving part 113 is positioned in the limiting groove 112-1; the two adjacent reinforcing units 110 on the same side are connected through the moving member 113, the directions of the limiting grooves 112-1 are the same, the moving member 113 is connected with one of the reinforcing units 110, and the moving member 113 can move in the limiting groove 112-1 of the other reinforcing unit 110.
When the protected internal device is subjected to external force in the transportation or installation and use process, particularly the external force in the direction of the limiting groove 112-1, the moving part 113 moves in the limiting groove 112-1 to play a role of buffering, so that the protection purpose is realized; because the reinforcing structure 100 is annular, external forces in the longitudinal direction and the transverse direction can be counteracted, and the protection is more comprehensive; when the external force disappears, the flexible circuit board can be restored to the initial state under the self elastic force of the flexible circuit board.
Example 2
Referring to fig. 2 to 3, this embodiment is different from the first embodiment in that the base member 111 includes a fixed portion 111-1, a force receiving portion 111-2, and a connecting portion 111-3, the fixed portion 111-1 is used for external connection, the force receiving portion 111-2 is higher than the fixed portion 111-1, and the force receiving portion 111-2 is connected to the fixed portion 111-1 by the inclined connecting portion 111-3; an accommodating space N1 is formed between the stress part 111-2 and the fixing part 111-1; wherein, the connecting part 111-3 has elasticity; the base member 111 has elasticity, the stress portion 111-2 is used for protecting an external force perpendicular to the direction of the flexible circuit board, when the external force is pressed, the external force pushes the stress portion 111-2 to move towards the direction close to the flexible circuit board, the buffering is realized under the elastic force of the connecting portion 111-3, and when the external force is removed, the external force is restored to the initial state.
Furthermore, the base member 111 is integrally formed by an elastic metal sheet or an elastic plastic sheet, and both sides of the accommodating space N1 penetrate, that is, the base member 111 is substantially Z-shaped as a whole and is integrally formed by an elastic metal sheet or an elastic plastic sheet, which is not expensive to manufacture.
Example 3
Referring to fig. 3 to 4, this embodiment is different from the above embodiments in that the height of the limiting member 112 in the accommodating space N1 is lower than that of the force-receiving portion 111-2, and the limiting groove 112-1 in the limiting member 112 extends along the penetrating direction of the accommodating space N1.
It should be noted that the moving member 113 is substantially bar-shaped, one end of the moving member 113 is provided with a protrusion 113-1 facing the force-receiving portion 111-2, and the protrusion 113-1 is used for connecting with the base member 111.
In this embodiment, the moving member 113 is connected to the base member 111 through the protruding portion 113-1, and the other end of the moving member 113 is located in the limiting groove 112-1 of the adjacent reinforcing unit 110, and when the external force is applied, the base member 111 drives the moving member 113 to move along the limiting groove 112-1, so as to achieve buffering.
Example 4
Referring to fig. 4 to 9, the embodiment is different from the above embodiment in that the other end of the moving member 113 is also provided with a protrusion 113-1, the limiting member 112 is further provided with an accommodating groove 112-2 communicated with the limiting groove 112-1 and extending along the penetrating direction of the accommodating space N1, and the accommodating groove 112-2 can accommodate the protrusion 113-1 at the other end of the moving member 113 to move; when the buffer action is performed, the base member 111 drives the moving member 113 to move along the limiting groove 112-1, and the protruding portion 113-1 in the accommodating space N1 limits the movement in the accommodating groove 112-2.
The structure of the accommodating groove 112-2 of the limiting member 112 can be as shown in fig. 8, and the whole limiting member 112 is composed of two symmetrical structures; the receiving groove 112-2 of the position-limiting member 112 may have a structure as shown in fig. 9, and the receiving groove 112-2 may be a through hole directly opened.
Furthermore, a stop piece 111-4 is further arranged in the accommodating space N1 on the stress part 111-2, the stop piece 111-4 is distributed on two sides of the penetrating direction of the accommodating space N1, and the stop piece 111-4 can be in contact with a convex part 113-1 of the moving piece 113.
The stop piece 111-4 has a limiting function, when the convex part 113-1 moves in the accommodating space N1, the convex part 113-1 is limited to move between the stop pieces 111-4 at two sides, and the convex part 113-1 is prevented from being separated, so that the moving part 113 leaves the limiting groove 112-1.
Furthermore, in order to achieve better buffering and resetting effects, a rubber buffer block 111-5 is further arranged in the accommodating space N1, and when the two reinforcing units 110 are connected through a moving part 113, the rubber buffer block 111-5 is positioned between a convex part 113-1 in the accommodating space N1 and a stop part 111-4 at the far end; when the three reinforcing units 110 are connected by the two moving members 113, the rubber buffer block 111-5 is located between the protrusions 113-1 of the two moving members 113 in the accommodating space N1 of the middle base member 111.
Example 5
Referring to fig. 4 to 9, this embodiment is different from the above embodiment in that a receiving cavity capable of receiving the stopper 111-4 is further formed on the boss 113-1, and the base member 111 is connected to the moving member 113 through the cooperation of the stopper 111-4 and the receiving cavity 113-2; that is, when the stop member 111-4 is inserted into the receiving cavity 113-2, the receiving cavity 113-2 limits the stop member 111-4, and the effect of synchronous movement of the base member 111 and the moving member 113 is achieved.
It is further noted that the length of the receiving cavity 113-2 in the penetrating direction of the vertical receiving space N1 is greater than the length of the stop piece 111-4 in the penetrating direction of the vertical receiving space N1, and the length is set so that when the receiving cavity is pressed, an external force pushes the force-bearing part 111-2 to move towards the direction close to the flexible circuit board, the stop piece 111-4 moves synchronously, and the space reserved in the receiving cavity 113-2 allows the stop piece 111-4 to move; meanwhile, the length of the accommodating cavity 113-2 in the penetrating direction of the accommodating space N1 is slightly greater than the length of the stopper 111-4 in the penetrating direction of the accommodating space N1, as long as the stopper 111-4 can be inserted into the accommodating cavity 113-2.
Example 6
As shown in fig. 10 and 11, this embodiment 6 discloses a flexible circuit board with a reinforcing structure, the flexible circuit board 200 has a sensor assembly 210 thereon, the reinforcing structure 100 is located at the sensor assembly 210, and the sensor assembly 210 is located in an annular structure of the reinforcing structure 100; in the reinforcing structure 100, the base member 111 is fixedly connected to the flexible circuit board 200 through the fixing portion 111-1, and the limiting member 112 is fixedly connected to the flexible circuit board 200.
The reinforcing structure 100 protects the sensor assembly 210, and in the transportation or installation process, when the sensor assembly 210 is subjected to external force, particularly external force in the longitudinal and transverse directions, the base member 111 fixed with the moving member 113 moves in the limiting groove 112-1 of the adjacent base member 111 through the moving member 113 to play a role of buffering, so that the protection purpose is realized; because the reinforcing structure 100 is annular, external forces in the longitudinal direction and the transverse direction can be counteracted, and the protection is more comprehensive; when the external force disappears, the flexible printed circuit board can be restored to the original state under the elastic force of the flexible printed circuit board itself or the rubber buffer block 111-5.
When the sensor assembly 210 is pressed, the force-receiving portion 111-2 is pushed by an external force to move in a direction close to the flexible circuit board, and the connection portion 111-3 is buffered by the elastic force, and when the external force is removed, the sensor assembly returns to the initial state.
The invention can protect the protection device from multiple directions and has better protection effect.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A reinforcing structure, characterized in that: the reinforcing structure (100) is an annular structure consisting of a plurality of reinforcing units (110), the reinforcing units (110) comprise,
the device comprises a base piece (111), wherein one end of the base piece (111) is a fixed part (111-1), and the other end of the base piece (111) is provided with an accommodating space (N1);
the limiting piece (112) is located in the accommodating space (N1), and a limiting groove (112-1) is formed in the limiting piece (112); and the number of the first and second groups,
the moving piece (113), the moving piece (113) is positioned in the limiting groove (112-1);
the two adjacent reinforcing units (110) on the same side are connected through a moving piece (113), the directions of the limiting grooves (112-1) are consistent, the moving piece (113) is connected with one of the reinforcing units (110), and the moving piece (113) can move in the limiting groove (112-1) of the other reinforcing unit (110);
the base member (111) comprises a fixed part (111-1), a stress part (111-2) and a connecting part (111-3), the fixed part (111-1) is used for external connection, the stress part (111-2) is higher than the fixed part (111-1), and the stress part (111-2) is connected with the fixed part (111-1) through the inclined connecting part (111-3); the accommodating space (N1) is formed between the stress part (111-2) and the fixing part (111-1);
wherein the connecting portion (111-3) has elasticity.
2. A reinforcing arrangement according to claim 1, wherein: the base piece (111) is integrally formed by an elastic metal sheet or an elastic plastic sheet, and two sides of the accommodating space (N1) penetrate through the base piece.
3. A reinforcing arrangement according to claim 2, wherein: the height of the limiting piece (112) in the accommodating space (N1) is lower than that of the stress part (111-2), and the limiting groove (112-1) in the limiting piece (112) extends along the penetrating direction of the accommodating space (N1).
4. A reinforcing arrangement according to claim 3, wherein: the moving part (113) is substantially in a strip shape, one end of the moving part (113) is provided with a protruding part (113-1) facing the stress part (111-2), and the protruding part (113-1) is used for being connected with the base part (111).
5. A reinforcing arrangement according to claim 4, wherein: the other end of the moving part (113) is also provided with a boss (113-1), the limiting part (112) is further provided with an accommodating groove (112-2) which is communicated with the limiting groove (112-1) and extends along the penetrating direction of the accommodating space (N1), and the accommodating groove (112-2) can accommodate the boss (113-1) at the other end of the moving part (113) to move.
6. A reinforcing arrangement according to claim 5, wherein: the stress part (111-2) is also provided with a stop piece (111-4) in the accommodating space (N1), the stop piece (111-4) is distributed on two sides of the penetrating direction of the accommodating space (N1), and the stop piece (111-4) can be in contact with the boss (113-1) of the moving piece (113).
7. A reinforcing arrangement according to claim 6, wherein: the convex part (113-1) is also provided with an accommodating cavity capable of accommodating the stop part (111-4), and the base part (111) is connected with the moving part (113) through the matching of the stop part (111-4) and the accommodating cavity (113-2).
8. A reinforcing arrangement according to claim 7, wherein: the length of the accommodating cavity (113-2) in the direction vertical to the penetrating direction of the accommodating space (N1) is greater than the length of the stop piece (111-4) in the direction vertical to the penetrating direction of the accommodating space (N1).
9. A flexible circuit board having the reinforcing structure according to any one of claims 1 to 8, wherein: the flexible circuit board (200) is provided with a sensor assembly (210), the reinforcing structure (100) is positioned at the sensor assembly (210), and the sensor assembly (210) is positioned in an annular structure of the reinforcing structure (100);
in the reinforcing structure (100), the base member (111) is fixedly connected with the flexible circuit board (200) through the fixing portion (111-1), and the limiting member (112) is fixedly connected with the flexible circuit board (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976127.2A CN112272443B (en) | 2020-09-16 | 2020-09-16 | Reinforcing structure and flexible circuit board with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976127.2A CN112272443B (en) | 2020-09-16 | 2020-09-16 | Reinforcing structure and flexible circuit board with same |
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| Publication Number | Publication Date |
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| CN112272443A CN112272443A (en) | 2021-01-26 |
| CN112272443B true CN112272443B (en) | 2022-02-01 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792506A (en) * | 2016-03-25 | 2016-07-20 | 上海摩软通讯技术有限公司 | FPC, FPC connector and FPC connecting device |
| CN206272927U (en) * | 2016-11-10 | 2017-06-20 | 昆山华乐电子科技有限公司 | Steel disc stiffener |
| CN210670850U (en) * | 2019-02-23 | 2020-06-02 | 华为技术有限公司 | Spacing subassembly, sliding connection mechanism and collapsible electronic equipment |
| CN111356285A (en) * | 2020-04-22 | 2020-06-30 | 江苏哈哈社信息科技有限公司 | Flexible circuit board and terminal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160108761A (en) * | 2015-03-06 | 2016-09-20 | 삼성전자주식회사 | Connecting substrate |
| KR20190080271A (en) * | 2017-12-28 | 2019-07-08 | 엘지디스플레이 주식회사 | Flexible printed circuit board and display module using the same |
-
2020
- 2020-09-16 CN CN202010976127.2A patent/CN112272443B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792506A (en) * | 2016-03-25 | 2016-07-20 | 上海摩软通讯技术有限公司 | FPC, FPC connector and FPC connecting device |
| CN206272927U (en) * | 2016-11-10 | 2017-06-20 | 昆山华乐电子科技有限公司 | Steel disc stiffener |
| CN210670850U (en) * | 2019-02-23 | 2020-06-02 | 华为技术有限公司 | Spacing subassembly, sliding connection mechanism and collapsible electronic equipment |
| CN111356285A (en) * | 2020-04-22 | 2020-06-30 | 江苏哈哈社信息科技有限公司 | Flexible circuit board and terminal |
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| CN112272443A (en) | 2021-01-26 |
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