CN210202175U - Tear-resistant FPC structure - Google Patents
Tear-resistant FPC structure Download PDFInfo
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- CN210202175U CN210202175U CN201921165267.0U CN201921165267U CN210202175U CN 210202175 U CN210202175 U CN 210202175U CN 201921165267 U CN201921165267 U CN 201921165267U CN 210202175 U CN210202175 U CN 210202175U
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- piece
- fpc
- bending
- fpc body
- bend
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- 238000005452 bending Methods 0.000 claims abstract description 65
- 239000012528 membrane Substances 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 238000005530 etching Methods 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000011889 copper foil Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 229910000679 solder Inorganic materials 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a tear-resistant FPC structure, which comprises a FPC body and membrane layers covering the front and back surfaces of the FPC body, wherein a plurality of bending collecting sheets are respectively arranged on the two side edges of the FPC body in an outward continuous bending and extending manner, the membrane layer is extended and covered on the bending collection sheet in a matching way, a buffer groove is arranged between the bending collection sheet and the side edge of the FPC body, by adopting the technical scheme, when the battery module generates expansion deformation, the bent collecting piece can be distorted and deformed by virtue of the bent structure design, and further plays a role in offset buffering through the buffer groove, so that the load bearing capacity is strong, thereby make the collection piece of bending satisfy the connection distance requirement when battery module warp, prevent to bend and gather the piece and be pulled easily under the atress condition and take off the solder joint or tear, guarantee FPC body and the installation stability and the reliability of gathering the piece of bending, promote the life and the performance of product.
Description
Technical Field
The utility model relates to a flexible line way board technical field, concretely relates to tear FPC structure of tearing.
Background
The automobile battery module is formed by combining a plurality of battery cell units in a series connection and parallel connection mode, the voltage sampling and the temperature sampling of the traditional battery module are acquired through the isolating plate provided with the wiring harness, the manufacturing and wiring of the wiring harness connection mode are difficult, and the condition of wiring errors often occurs. Therefore, the battery module in the market starts to adopt a Flexible Printed Circuit board (FPC for short) provided with a Circuit to replace the traditional wiring harness connection mode, so as to achieve the purpose of acquiring information such as voltage, temperature and the like of the battery module.
There is a FPC line that has shown in fig. 5, including the fashioned substrate board 01 of copper foil etching to tectorial membrane on the substrate board, be equipped with a plurality of naked collection contact 02 on the both sides side of substrate board 01, these collection contact 02 are straight appearance design, weld respectively with the busbar 04 of a plurality of electric core units 03 through a plurality of collection contact 02, thereby play the effect of voltage sampling and temperature sampling to battery module, this kind of substrate board is flexible. However, the existing FPC circuit board still has the following problems in practical use that the expansion and deformation phenomena can occur between the connected cells when the battery module is charged and discharged for a long time, so that tension can be generated on the acquisition contact piece welded on the cells, that is, the acquisition contact piece is pulled, welding points fall off, a base material board is torn, and the service life of a product is influenced.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the FPC circuit board among the prior art and can dragging the collection contact when battery module takes place the expansion deformation, leads to gathering the contact solder joint and drop and tear the problem of substrate board even.
For solving the technical problem, the utility model provides a tear FPC structure of tearing, including the FPC body, and cover in the diaphragm layer of FPC body tow sides, outside the extension of buckling a lot of respectively on the both sides side of FPC body is provided with a plurality of collection pieces of bending, diaphragm layer looks adaptation ground extend cover in on the collection piece of bending, the collection piece of bending can distort under the exogenic action and stretch, bend the collection piece with be equipped with the dashpot between the FPC body side.
As a preferred scheme, an easy-to-deform groove structure extending along the outline shape of the bending collection sheet is formed in the bending collection sheet, and the easy-to-deform groove structure extends between two ends of the bending collection sheet.
Preferably, the flexible groove structure comprises at least one linear groove continuously or discontinuously arranged on the bent collecting piece.
As a preferred scheme, a plurality of bent angles of the bending collection sheet are arranged in a round angle structure.
As a preferred scheme, the bending collecting piece is of an S-shaped structure.
As a preferred scheme, the bent collecting piece is of a snake-shaped structure which is arranged end to end.
As a preferred scheme, the membrane layer comprises a circuit surface protective film covering the front surface and the back surface of the FPC body and an insulating surface protective film arranged on the circuit surface protective film.
As a preferred scheme, the FPC body is integrally formed by etching aluminum foil or copper foil, and the bending collecting piece is an aluminum sheet structure or a copper sheet structure integrally formed on the side edges of the two sides of the FPC body.
Compared with the prior art, the technical scheme of the utility model have the following advantage:
1. the utility model provides a tear-resistant FPC structure, the bending acquisition piece is arranged on the two side edges of the FPC body in a bending structure extending manner, a buffer groove is arranged between the bending acquisition piece and the side edges of the FPC body, and the membrane layer extends to cover the bending acquisition piece, thereby improving the structural strength of the bending acquisition piece and playing a role in protection, the design has the advantages that when the battery module expands and deforms, the bending acquisition piece can be distorted and deformed by virtue of the bending structure design to generate proper amount of extension or deviation deformation, and further plays a role in deviation buffering between the bending acquisition piece and the FPC body through the buffer groove, the load bearing capacity is strong, thereby enabling the bending acquisition piece to meet the requirement of connection distance when the battery module deforms, preventing the bending acquisition piece from being easily pulled off welding spots or torn under stress, and ensuring the installation stability and reliability of the FPC body and the bending acquisition piece, the service life and the service performance of the product are improved.
2. The utility model provides an among the anti FPC structure of tearing, the shaping has along the yielding groove structure that its profile shape extended the setting on the collection piece of bending, and this kind of structure setting can also take place to squint through yielding groove structure and warp when the collection piece of bending bears the pulling force under the great circumstances, the collection piece of bending, plays the atress cushioning effect, increases the deflection to the collection piece that makes to bend still can keep being connected with electric core cooperation under the electric core emergence deformation circumstances.
3. The utility model provides an among the anti FPC structure of tearing, bend the many bent angles of gathering the piece and be the fillet structure setting, handle through making the radius angle at a plurality of bent angle positions that gather piece stress ratio concentrates of bending to this dispersion stress can reach a balanced state, makes the bent angle position be unlikely to produce crackle and breach.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below.
Fig. 1 is a schematic plan view of a tear-resistant FPC structure according to the present invention;
fig. 2 is an enlarged schematic structural view of the bending collecting piece of the present invention;
fig. 3 is a schematic structural view of another embodiment of the bending collection sheet of the present invention;
fig. 4 is a schematic structural view of the FPC body and the membrane layer of the utility model;
FIG. 5 is a schematic view of a prior art FPC layout mounting structure;
description of reference numerals: 1-FPC body, 11-circuit structure, 2-membrane layer, 20-welding window, 21-circuit surface protective film, 22-insulating surface protective film, 3-bending collection sheet, 4-buffer groove and 5-easy-to-deform groove structure.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment is described in detail below with reference to the accompanying drawings:
this embodiment provides like fig. 1-4 show a tear FPC structure of tearing, including FPC body 1, and cover in the diaphragm layer 2 on FPC body 1 tow sides, outwards buckle in succession respectively on FPC body 1's both sides side edge and extend and be provided with a plurality of collection pieces 3 of bending, bend promptly and gather piece 3 formation and have many bent angles, diaphragm layer 2 looks adaptation ground extend cover in bend on gathering piece 3, it can distort under the exogenic action tensile to bend collection piece 3, bend collection piece 3 with be equipped with dashpot 4 between FPC body 1 side.
In the above embodiment, the bending collecting piece 3 is arranged on the two side edges of the FPC body 1 in a bending structure, and a buffer groove 4 is arranged between the bending collecting piece 3 and the side edges of the FPC body, and the membrane layer 2 extends to cover the bending collecting piece 3, so that the structural strength of the bending collecting piece can be improved, and the protection effect is achieved, and the design has the advantages that when the battery module is expanded and deformed, the bending collecting piece 3 can be distorted and deformed by virtue of the bending structure design to generate a proper amount of extension or offset deformation, and further plays a role in offset buffering between the bending collecting piece and the FPC body through the buffer groove 4, and the load bearing capacity is strong, so that the bending collecting piece 3 meets the requirement of the connection distance when the battery module is deformed, the bending collecting piece is prevented from being easily pulled off a welding point or torn under a stress condition, and the installation stability and reliability of the FPC body and the bending collecting piece are, the service life and the service performance of the product are improved.
In order to further promote the deformation buffering capacity of the collection piece of bending, as shown in fig. 2, the last shaping of collection piece 3 of bending has along its profile shape extend the yielding groove structure 5 that sets up, yielding groove structure 5 extends and is located bend between the both ends of collection piece, and is further preferred, yielding groove structure 5 including continuous or non-continuous set up in bend at least one line type channel on the collection piece 3, this kind of structure setting, when the collection piece 3 of bending bears under the great condition of pulling force, the collection piece of bending can also take place the skew through yielding groove structure and warp, plays the atress cushioning effect, increases the deflection, thereby makes collection piece 3 of bending still can keep being connected with electric core cooperation under the deformation condition takes place for electric core.
The specific arrangement of the bent collecting piece is described in detail below with reference to fig. 1-3:
bend and gather piece 3's many places bent angle and be fillet structure setting, through bend and gather 3 stress comparison a plurality of bent angle positions of concentrating and do the radius angle and handle to this dispersion stress can reach a balanced state, makes bent angle position be unlikely to produce crackle and breach, guarantees to bend and gathers piece 3 and can produce distortion under the stress state.
As a preferred embodiment, as shown in fig. 2 to 3, the bending collection sheet 3 is an S-like structure, or may be a serpentine structure disposed end to end, and by providing the S-like structure and/or the concave-convex structure, the bending collection sheet can be bent and stretched for a certain length when being stressed, so as to increase the extension distance, and the stress buffering effect is good. Obviously, other similar bending shapes integrally formed with the PFC body may also be selected for the bending collecting piece 3, and a person skilled in the art can select a specific setting mode of the bending collecting piece 3 according to the above description, and further details of other equivalent embodiments of the bending collecting piece 3 are not described here.
In this embodiment, the FPC body 1 is preferably integrally formed by etching an aluminum foil, the bending collection pieces 3 are aluminum sheet structures integrally formed on the side edges of the two sides of the FPC body, obviously, according to the requirement of actual use, the FPC body 1 may also be integrally formed by etching a copper foil, the bending collection pieces 3 are copper sheet structures integrally formed on the side edges of the two sides of the FPC body, it is seen that the FPC body may be formed by processing different base materials through an etching process, and further description is not given to other equivalent embodiments of the FPC body. The utility model discloses a battery module, including FPC body, diaphragm layer 2, collection piece 3, welding window 20, FPC body and the collection piece that bends, the diaphragm layer 2 corresponds the one end of bending collection piece 3 and has seted up welding window 20, and the tip part of bending collection piece 3 exposes promptly welding window 20 is used for welding with electric core busbar, and can know through above-mentioned structure, the FPC body with the collection piece that bends is through aluminium foil or copper foil integrated etching shaping to 1 shaping has a plurality of circuit structure 11 on the FPC body, circuit structure 11 is used for transmitting current or signal, then represses and pastes the diaphragm layer is in order to protect circuit structure, this kind of structure shaping is simple, simplifies the production processes, through bending collection piece 3 and electric core cooperation contact in order to reach the purpose of gathering information.
As a preferred embodiment, as shown in fig. 4, the membrane layer 2 includes a circuit surface protection film 22 disposed on the front and back surfaces of the FPC body, and an insulating surface protection film 23 disposed on the circuit surface protection film, and this double-layer protection film arrangement can better protect the substrate from being exposed to the air, avoid oxidation of the substrate, prevent static electricity from occurring, and perform an insulating function, thereby performing a covering and protecting function on the flexible circuit of the PFC line bank under severe environments such as heat, humidity, pollutants, corrosive gases, and the like.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (8)
1. The utility model provides a tear FPC structure of tearing, its characterized in that, including FPC body (1), and cover in diaphragm layer (2) on FPC body (1) tow sides, outwards buckle in succession respectively on the both sides side of FPC body (1) and extend and be provided with a plurality of collection piece (3) of bending, diaphragm layer (2) extend with the looks adaptation cover in bend on gathering piece (3), it can distort tensile under the exogenic action to bend collection piece (3), bend collection piece (3) with be equipped with dashpot (4) between FPC body (1) side.
2. The tear resistant FPC structure of claim 1, wherein: bend and gather piece (3) and go up the shaping and have along the yielding groove structure (5) that its profile shape extended the setting, yielding groove structure (5) extend and are located bend and gather between the both ends of piece.
3. The tear resistant FPC structure of claim 2, wherein: the easy-to-deform groove structure (5) comprises at least one linear groove channel which is continuously or discontinuously arranged on the bending collecting piece.
4. A tear resistant FPC structure as claimed in any one of claims 1 to 3, wherein: bend and gather the many places bent angle of piece (3) and be the fillet structure setting.
5. The tear resistant FPC structure of claim 4, wherein: the bending collecting piece (3) is of an S-shaped structure.
6. The tear resistant FPC structure of claim 4, wherein: the bent acquisition piece (3) is of a snake-shaped structure which is arranged end to end.
7. The tear resistant FPC structure of claim 1, wherein: the membrane layer (2) comprises a line surface protection film (21) covering the front surface and the back surface of the FPC body (1) and an insulating surface protection film (22) arranged on the line surface protection film.
8. The tear resistant FPC structure of claim 7, wherein: the FPC body (1) is integrally formed by etching aluminum foil or copper foil, and the bending collection piece (3) is of an aluminum sheet structure or a copper sheet structure integrally formed on the side edges of the two sides of the FPC body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165267.0U CN210202175U (en) | 2019-07-23 | 2019-07-23 | Tear-resistant FPC structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921165267.0U CN210202175U (en) | 2019-07-23 | 2019-07-23 | Tear-resistant FPC structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210202175U true CN210202175U (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921165267.0U Active CN210202175U (en) | 2019-07-23 | 2019-07-23 | Tear-resistant FPC structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210202175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534513A (en) * | 2020-04-21 | 2021-10-22 | 咸阳彩虹光电科技有限公司 | Semiconductor packaging structure and display device |
-
2019
- 2019-07-23 CN CN201921165267.0U patent/CN210202175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113534513A (en) * | 2020-04-21 | 2021-10-22 | 咸阳彩虹光电科技有限公司 | Semiconductor packaging structure and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210510 Address after: No. 187, Weiwu Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province 325600 Patentee after: Zhejiang Qiaolong Electronic Technology Co.,Ltd. Address before: No. 187, Weiwu Road, Yueqing Economic Development Zone, Wenzhou City, Zhejiang Province 325600 Patentee before: JD LONGWAYFLEX Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 187, Weiwu Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province 325600 Patentee after: Zhejiang Yilian Electronics Co.,Ltd. Country or region after: China Address before: No. 187, Weiwu Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province 325600 Patentee before: Zhejiang Qiaolong Electronic Technology Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |