CN219979938U - Connection structure for connecting flexible circuit board and connector - Google Patents
Connection structure for connecting flexible circuit board and connector Download PDFInfo
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- CN219979938U CN219979938U CN202321288434.7U CN202321288434U CN219979938U CN 219979938 U CN219979938 U CN 219979938U CN 202321288434 U CN202321288434 U CN 202321288434U CN 219979938 U CN219979938 U CN 219979938U
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- circuit board
- flexible circuit
- connector
- connection
- insulating layer
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- 238000000034 method Methods 0.000 claims abstract description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 20
- 238000007747 plating Methods 0.000 claims description 17
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 10
- 239000010931 gold Substances 0.000 claims description 10
- 229910052737 gold Inorganic materials 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005476 soldering Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The present utility model relates to a connection structure for connecting a flexible circuit board and a connector: the flexible circuit board is manufactured by an SMT-free paster process and comprises a conductive layer and a front insulating layer and a back insulating layer which are covered on the front surface and the back surface of the conductive layer; the connecting structure comprises a conductive joint which is integrally formed with the conductive layer and extends to the outer end of the flexible circuit board, the front insulating layer and the back insulating layer respectively extend and cover the front surface and the back surface of the conductive joint and form a connecting end for connecting a connector together with the conductive joint, the front insulating layer or the back insulating layer is provided with a plurality of strip-shaped holes in a row at the position of the conductive joint, and the conductive joint is exposed through the strip-shaped holes so as to form a plurality of connecting fingers which are used for the connector and are attached in a one-to-one correspondence with a plurality of connecting elastic sheets. The utility model eliminates the process that the traditional connector needs to be attached to the flexible circuit board through the SMT, and reduces the installation cost and the installation difficulty of the connector.
Description
Technical Field
The utility model relates to the technical field of power batteries, in particular to a connecting structure for connecting a flexible circuit board and a connector.
Background
The wiring harness on the battery module sampling harness isolation board assembly in the prior art is generally divided into two types, namely an FPC (flexible circuit board, which is an abbreviation of Flexible Printed Circuit) and a wire. The connector in the assembly is generally manufactured by attaching a connector to an FPC board by SMT (surface mount technology, abbreviated as Surface Mounted Technology) in advance, performing solder fixing by using an FPC reflow process, and then connecting the connector through the connector. And the FPC reflow soldering process requires specific equipment, and has high production process requirements and high production cost. Therefore, how to reduce the installation cost and the installation difficulty of the connector assembly is a problem to be solved by the present utility model.
Disclosure of Invention
In order to solve the above problems, the present utility model provides a connection structure for connecting a flexible circuit board and a connector, which eliminates the process that a conventional connector needs to be attached to the flexible circuit board by SMT, and reduces the installation cost and difficulty of the connector.
The utility model is realized by the following scheme: a connection structure for connecting a flexible circuit board and a connector: the flexible circuit board is manufactured by an SMT-free paster process and comprises a conductive layer and a front insulating layer and a back insulating layer which are covered on the front surface and the back surface of the conductive layer; the connecting structure comprises conductive joints which are integrally formed with the conductive layers and extend to the outer end of the flexible circuit board, the front insulating layer and the back insulating layer respectively extend and cover and are connected to the front surface and the back surface of the conductive joints, the front insulating layer or the back insulating layer and the conductive joints together form a connecting end for connecting the connector, a plurality of strip-shaped holes are formed in a row at the position of the conductive joints, and the conductive joints are exposed through the strip-shaped holes so as to form a plurality of connecting fingers for connecting the connector, wherein the connecting fingers are in one-to-one correspondence with a plurality of connecting elastic sheets of the connector.
The utility model further improves a connecting structure for connecting the flexible circuit board and the connector, wherein the conducting layer is aluminum-based, a nickel plating layer is arranged on the connecting finger, and a gold plating layer is arranged on the nickel plating layer.
The utility model further improves the connecting structure for connecting the flexible circuit board and the connector, wherein the gold plating layer is arranged on the nickel plating layer in a gold plating manner.
A further improvement of the connection structure of the present utility model for connecting a flexible circuit board and a connector is that the connector includes:
the side surface of the connecting box is provided with a socket for inserting the connecting end;
the row inserts are used for arranging and installing a plurality of connecting elastic pieces along the width direction of the socket, the row inserts are arranged in the connecting box, and the connecting elastic pieces are arranged along the inserting direction of the connecting end;
and in a state that the connecting end is inserted into the connecting box, the plurality of connecting elastic pieces are attached to the plurality of connecting fingers in a one-to-one correspondence manner.
The utility model provides a further improvement of a connecting structure for connecting a flexible circuit board and a connector, which is characterized in that a row of inserts are comb-shaped and comprise a cross beam and rib beams fixed on the side edge of the cross beam at intervals in rows, a plurality of connecting elastic sheets are embedded between every two adjacent rib beams in a one-to-one correspondence manner, one end of each connecting elastic sheet is fixed with the cross beam, and the other end of each connecting elastic sheet forms a free end with a vertical elastic reset trend.
The utility model further improves a connecting structure for connecting a flexible circuit board and a connector, wherein a plug bush which is inserted through the socket and is clamped in the connecting box is sleeved on the connecting end, and a containing space for the row of plugs to be inserted and cling to the connecting end is reserved in the plug bush.
The utility model further improves a connecting structure for connecting the flexible circuit board and the connector, wherein the outer wall of the plug bush is fixedly provided with a limit guide rail, and the inner wall of the connecting box is provided with a limit groove for the limit guide rail to slide in.
The utility model further improves the connecting structure for connecting the flexible circuit board and the connector, wherein the outer wall of the plug bush is connected with a locking wedge for preventing the limit guide rail from sliding out of the limit groove.
The utility model is used for connecting the flexible circuit board and the connecting structure of the connector, and is further improved in that the inner wall of the plug bush is fixedly provided with a limit lug for clamping the connecting end, the connecting end is correspondingly provided with a limit opening for clamping the limit lug, and the limit opening is arranged avoiding the layout area of the connecting fingers.
According to the utility model, the conductive joint part of the flexible circuit board is exposed to form the connecting finger to replace the traditional connector, so that the process that the traditional connector needs to be attached to the flexible circuit board through the SMT is eliminated, and the installation cost and the installation difficulty of the connector are reduced. Set up the plug bush and improved the connector to connecting finger adaptation for when connector and link were connected, connect the finger and paste mutually with the connection shell fragment can the one-to-one, guaranteed the reliable connection of connector and flexible circuit board, and realized dismantling between connector and the flexible circuit board.
Drawings
Fig. 1 shows a schematic representation of an embodiment of the connection structure of the present utility model.
FIG. 2 is a schematic diagram showing the distribution of the connecting fingers on the connecting end in the present utility model.
Fig. 3 is a schematic diagram showing a clamping state of a plug bush and a connecting end in the utility model.
Fig. 4 is a schematic view showing a combined state of the plug bush, the connection terminal and the connector in the present utility model.
Fig. 5 shows a schematic cross-sectional view of the state of fig. 4.
Detailed Description
The connection between the traditional FPC board and the connector needs to connect a connector on the FPC board, and the connection of the connector needs to paste the connector on the FPC board by using an SMT (surface mount technology) patch technology firstly, and then the connector is welded on the FPC board by using an FPC reflow soldering technology. The FPC whole process comprises the following steps: cutting, dry film pressing, exposure, D.E.S-AOI-covering film pasting, die pressing and changing, baking, target punching, appearance pasting, FR4 pressing, FR4 baking, OSP-electric measurement, full inspection, SMT-AOI-cleaning, FR4 pasting, dispensing, UV curing, double-sided adhesive pasting, functional test, full inspection and packaging. Wherein, the SMT process needs to adopt FPC reflow soldering technology, and this technology needs specific equipment, and production technology requires high, and manufacturing cost is also higher. Therefore, the utility model provides a connecting structure for connecting the flexible circuit board and the connector, which eliminates the process that the traditional connector needs to be connected to the flexible circuit board through an SMT patch, and reduces the installation cost and the installation difficulty of the connector. The connection structure for connecting the flexible circuit board and the connector will be further described with reference to the drawings by way of specific embodiments.
Referring to fig. 1 to 5, a connection structure for connecting a flexible circuit board and a connector is shown: the flexible circuit board 1 is manufactured by an SMT-free paster process and comprises a conductive layer and a front insulating layer and a back insulating layer which are covered on the front surface and the back surface of the conductive layer; the connection structure comprises a conductive joint which is integrally formed with the conductive layer and extends to the outer end of the flexible circuit board 1, the front insulating layer and the back insulating layer respectively extend and cover the front surface and the back surface of the conductive joint and form a connection end 2 for connecting a connector together with the conductive joint, the front insulating layer or the back insulating layer is provided with a plurality of strip-shaped holes in a row at the position of the conductive joint, and the conductive joint is exposed through a plurality of strip-shaped holes so as to form a plurality of connecting fingers 21 which are respectively attached to a plurality of connecting elastic sheets 43 of the connector 4 in a one-to-one correspondence.
In this embodiment, the conductive contact portion of the flexible circuit board 1 is exposed to form the connecting finger 21 to replace the conventional connector, so that the process that the conventional connector needs to be attached to the flexible circuit board through the SMT patch is eliminated, and the installation cost and the installation difficulty of the connector are reduced.
As a preferred embodiment, the conductive layer is aluminum-based, and the connecting finger 21 is provided with a nickel plating layer, and the nickel plating layer is provided with a gold plating layer. Specifically, the exposed connecting finger 21 is plated with nickel and primed, and then a gold plating layer is arranged on the nickel plating layer by a gold plating method to improve the conductivity of the connecting finger 21, so as to form a gold finger with high conductivity.
In order to ensure that the connecting fingers 21 and the connecting elastic sheets 43 can be closely attached in a one-to-one correspondence when the connector 4 is connected with the connecting end 2, and ensure the reliable connection between the connector 4 and the flexible circuit board 1, the utility model improves the structure of the traditional connector.
Specifically, as shown in fig. 4 and 5, the connector 4 includes: a connection box 41, wherein a socket for inserting the connection end 2 is arranged on the side surface of the connection box 41; a plurality of row inserts 42 for arranging and installing the connecting elastic pieces 43 along the width direction of the jack, wherein the row inserts 42 are arranged in the connecting box 41, and the connecting elastic pieces 43 are arranged along the inserting direction of the connecting end 2; in a state where the connection terminal 2 is inserted into the connection box 41, the plurality of connection elastic pieces 43 are attached to the plurality of connection fingers 21 in one-to-one correspondence. In this embodiment, the row of inserts 42 is comb-shaped, and includes a cross beam, rib beams fixed on the side of the cross beam in rows at intervals, a plurality of connecting elastic pieces 43 are embedded between every two adjacent rib beams in a one-to-one correspondence manner, one end of each connecting elastic piece 43 is fixed with the cross beam, and the other end of each connecting elastic piece 43 forms a free end with a vertical elastic reset trend.
Further, the connection end 2 is sleeved with a plug bush 3 which is inserted into and clamped with the connection box 41 through the socket, and a containing space for the row of plugs 42 to be inserted into and cling to the connection end 2 is reserved in the plug bush 3.
Through the above-mentioned structural improvement of the connector 4 and the matching arrangement of the plugging sleeve 3, when the plugging sleeve 3 is completely inserted into the connection box 41, the plurality of connection fingers 21 and the plurality of connection elastic pieces 43 can be in one-to-one correspondence and closely attached. But also facilitates the disassembly and assembly operation between the connector 4 and the flexible circuit board 1.
As a preferred embodiment, the top wall of the plugging sleeve 3 is externally fixed with a limit guide rail 32, and a limit groove for sliding in the limit guide rail 32 is formed in the top wall of the connecting box 41. Through the cooperation setting of spacing guide rail 32 and spacing groove, guaranteed that connecting box 41 drives the exact and smooth plug of link 2 in connecting box 41.
Preferably, a locking wedge 33 for preventing the limit rail 32 from sliding out of the limit groove is further connected to the top wall of the socket 3. By the provision of this locking wedge 33, a secondary locking function is achieved, further ensuring a reliable connection of the connector 4 with the flexible circuit board 1.
As a preferred embodiment, as shown in fig. 2 and 3, a limit bump 31 for clamping the connection end 2 is fixed in the bottom wall of the plugging sleeve 3, and a limit opening 22 for clamping the limit bump 31 is correspondingly provided on the connection end 2, and the limit opening 22 is set avoiding the layout area M of the connection finger 21. Preferably, two sets of limiting openings can be provided, a first set of limiting openings is arranged on two opposite sides of the connecting end 2, a second set of limiting projections corresponding to the first set of limiting openings can be provided as triangular-cross-section columnar projections on the connecting end 2, and the limiting projections corresponding to the second set of limiting projections can be provided as elliptical-cross-section columnar projections, preferably extend outwards relatively along the short-diameter direction outside the elliptical-shaped columnar projections and form friction edges so that the friction edges can be clamped into the corresponding limiting openings more stably. Correspondingly, the shape of the connecting end 2 can be designed into a convex shape, so that the layout area M is arranged in an area with a narrower width, and the second group of limiting openings are arranged in an area with a wider width.
The utility model provides a connection structure for connecting a connector based on a flexible circuit board without an SMT patch, and the connection of an aluminum bar connected with the flexible circuit board and a temperature sensor is not limited, and the connection of the connector and the flexible circuit board can be traditional puncture crimping connection, finger plug connection and the like, and the connection of the temperature sensor and the flexible circuit board can be detachable connection by adopting a special mounting structure or direct welding connection.
The present utility model has been described in detail with reference to the examples of the drawings, and the embodiments are merely preferred embodiments, and in practice, the present utility model is not limited to the embodiments, and the material of the conductive layer and the structure of each component are not limited to the embodiments, and those skilled in the art can make various modifications to the present utility model according to the above-described concept. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the utility model, which is defined by the appended claims.
Claims (9)
1. A connection structure for connecting a flexible circuit board and a connector, characterized in that:
the flexible circuit board is manufactured by an SMT-free paster process and comprises a conductive layer and a front insulating layer and a back insulating layer which are covered on the front surface and the back surface of the conductive layer;
the connecting structure comprises conductive joints which are integrally formed with the conductive layers and extend to the outer end of the flexible circuit board, the front insulating layer and the back insulating layer respectively extend and cover and are connected to the front surface and the back surface of the conductive joints, the front insulating layer or the back insulating layer and the conductive joints together form a connecting end for connecting the connector, a plurality of strip-shaped holes are formed in a row at the position of the conductive joints, and the conductive joints are exposed through the strip-shaped holes so as to form a plurality of connecting fingers for connecting the connector, wherein the connecting fingers are in one-to-one correspondence with a plurality of connecting elastic sheets of the connector.
2. The connection structure for connecting a flexible circuit board and a connector according to claim 1, wherein the conductive layer is aluminum-based, a nickel plating layer is provided on the connection finger, and a gold plating layer is provided on the nickel plating layer.
3. The connection structure for connecting a flexible circuit board and a connector according to claim 2, wherein the gold plating layer is provided on the nickel plating layer by way of immersion gold.
4. The connection structure for connecting a flexible circuit board and a connector according to claim 1, wherein the connector comprises:
the side surface of the connecting box is provided with a socket for inserting the connecting end;
the row inserts are used for arranging and installing a plurality of connecting elastic pieces along the width direction of the socket, the row inserts are arranged in the connecting box, and the connecting elastic pieces are arranged along the inserting direction of the connecting end;
and in a state that the connecting end is inserted into the connecting box, the plurality of connecting elastic pieces are attached to the plurality of connecting fingers in a one-to-one correspondence manner.
5. The connection structure for connecting a flexible circuit board and a connector according to claim 4, wherein the row socket has a comb shape, and comprises a cross beam, and rib beams fixed on the side edges of the cross beam at intervals in rows, a plurality of connection elastic sheets are embedded between every two adjacent rib beams in a one-to-one correspondence manner, one end of each connection elastic sheet is fixed with the cross beam, and the other end of each connection elastic sheet forms a free end with a vertical elastic reset trend.
6. The connection structure for connecting a flexible circuit board and a connector according to claim 4, wherein a socket for being inserted through the socket and being clamped to the connection box is sleeved on the connection end, and a containing space for the row of plugs to be inserted and closely attached to the connection end is reserved in the socket.
7. The connection structure for connecting a flexible circuit board and a connector according to claim 6, wherein a limit rail is fixed to an outer wall of the socket, and a limit groove into which the limit rail slides is provided in an inner wall of the connection box.
8. The connection structure for connecting a flexible circuit board and a connector according to claim 7, wherein an outer wall of the socket is connected with a locking wedge for preventing the limit rail from sliding out of the limit groove.
9. The connection structure for connecting a flexible circuit board and a connector according to claim 6, wherein the inner wall of the plugging sleeve is fixed with a limit bump for clamping the connection end, the connection end is correspondingly provided with a limit opening for clamping the limit bump, and the limit opening is arranged avoiding the layout area of the connecting finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321288434.7U CN219979938U (en) | 2023-05-25 | 2023-05-25 | Connection structure for connecting flexible circuit board and connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321288434.7U CN219979938U (en) | 2023-05-25 | 2023-05-25 | Connection structure for connecting flexible circuit board and connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979938U true CN219979938U (en) | 2023-11-07 |
Family
ID=88587408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321288434.7U Active CN219979938U (en) | 2023-05-25 | 2023-05-25 | Connection structure for connecting flexible circuit board and connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979938U (en) |
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2023
- 2023-05-25 CN CN202321288434.7U patent/CN219979938U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |