FPC (Flexible Printed Circuit) positioning jig

Abstract

The utility model discloses an FPC positioning jig which is applied to an FPC board with the length extending in the first direction, a plurality of positioning holes are formed in the FPC board, the FPC positioning jig comprises a carrier plate and positioning columns, the length of the carrier plate extends in the first direction, a positioning groove matched with the FPC board is formed in the carrier plate, the positioning groove is divided into a plurality of expansion and contraction positioning areas in the first direction, and the expansion and contraction positioning areas are matched with the positioning columns. The positioning columns are arranged in the expansion and contraction positioning areas and located in the positioning grooves, and the positioning columns are matched with a plurality of positioning holes in the FPC board. The FPC board is positioned and accommodated by the carrier plate through the positioning grooves, the FPC board is divided into a plurality of expansion and contraction positioning areas along the length direction when the FPC board is accommodated, and a positioning column is arranged in each expansion and contraction positioning area, so that the FPC board is fixed through the positioning columns, the expansion and contraction amount of the FPC board in the length direction can be effectively reduced, and the offset of the FPC board in the length direction during mounting is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to an FPC positioning fixture. Background Art

[0002] In new energy products, some FPCs (flexible printed circuit boards) are long strips in structure, and need to be fixed by positioning fixtures when mounting components. In order to fix the FPC, the positioning fixtures of related technologies usually have positioning posts at both ends of the FPC. However, the longer the FPC is, the greater the expansion and contraction of the FPC is, and the greater the offset of the solder paste printing and mounting position is. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an FPC positioning fixture, which can reduce the expansion and contraction of the FPC board.

[0004] The present invention provides an FPC positioning fixture, which is applied to an FPC board whose length extends along a first direction, and the FPC board is provided with a plurality of positioning holes, including:

[0005] A carrier plate, the length of which extends along the first direction, the carrier plate is provided with a positioning groove adapted to the FPC board, and the positioning groove is divided into a plurality of expansion and contraction positioning areas in the first direction;

[0006] A positioning column is arranged in each of the expansion and contraction positioning areas and is located in the positioning groove, and the positioning column is adapted to the multiple positioning holes on the FPC board.

[0007] According to some embodiments of the present invention, the length of the expansion and contraction positioning area is less than or equal to 200 mm.

[0008] According to some embodiments of the present invention, the positioning column is arranged in the middle of the expansion and contraction positioning area.

[0009] According to some embodiments of the present invention, the positioning column is arranged at the end of the expansion and contraction positioning area.

[0010] According to some embodiments of the present invention, the width of the carrier plate extends along the second direction, and there are a plurality of positioning grooves, which are arranged along the second direction.

[0011] According to some embodiments of the present invention, a plurality of positioning flanges are provided on the carrier plate and at the edge of the positioning groove.

[0012] According to some embodiments of the present invention, the positioning groove includes a first sub-groove and a second sub-groove, the first sub-groove and the second sub-groove are adjacently arranged and their lengths extend along the first direction, and the first sub-groove and the second sub-groove are connected.

[0013] According to some embodiments of the present invention, a plurality of positioning flanges are provided on the carrier plate and at the edges of the first sub-groove and the second sub-groove.

[0014] According to some embodiments of the present invention, a space-avoiding recess is provided on the carrier plate and at the edge of the positioning groove.

[0015] According to some embodiments of the present invention, a clearance hole is provided on the carrier plate and located in the positioning groove.

[0016] The embodiments of the present invention have at least the following beneficial effects:

[0017] The carrier plate positions and accommodates the FPC board through the positioning grooves, and divides the FPC board into multiple expansion and contraction positioning areas along the length direction when it is accommodated, and arranges positioning columns in each expansion and contraction positioning area to fix the FPC board through the positioning columns, which can effectively reduce the expansion and contraction of the FPC board in the length direction, thereby reducing the offset of the FPC board in the length direction during mounting.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 A schematic plan view of an FPC positioning fixture according to an embodiment of the utility model;

[0021] Figure 2 for Figure 1 The middle circle shows a partial enlarged view of position A;

[0022] Figure 3 for Figure 1 The middle circle shows a partial enlarged view of position B.

[0023] Reference numerals:

[0024] The carrier plate 100 , the positioning groove 110 , the positioning flange 111 , the air-avoiding recess 112 , the expansion and contraction positioning area 120 , and the positioning column 130 . DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present utility model, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation”, and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention based on the specific content of the technical solution.

[0028] Please refer to Figure 1 and Figure 2 This embodiment discloses an FPC positioning fixture, which is applied to an FPC board whose length extends along a first direction, wherein the first direction is indicated as an X-axis direction, and a plurality of positioning holes are arranged on the FPC board. The FPC positioning fixture includes a carrier 100 and a positioning column 130, wherein the length of the carrier 100 extends along the first direction to adapt to the length of the FPC board, and a positioning groove 110 adapted to the FPC board is arranged on the carrier 100, and the positioning groove 110 is divided into a plurality of expansion and contraction positioning areas 120 in the first direction, and a positioning column 130 is arranged in each expansion and contraction positioning area 120 and is located in the positioning groove 110, and the positioning column 130 is adapted to the plurality of positioning holes on the FPC board. The related art takes the center of the fixture as the expansion and contraction center and extends to both ends for expansion and contraction control, while this embodiment divides the positioning groove 110 into a plurality of expansion and contraction positioning areas 120, and positions and limits the FPC board in each expansion and contraction area by the positioning column 130, so that the FPC board can be divided into a plurality of sections for expansion and contraction control, ensuring that the expansion and contraction amount of each section is controllable.

[0029] In this way, the carrier 100 positions and accommodates the FPC board through the positioning groove 110, and divides the FPC board into multiple expansion and contraction positioning areas 120 along the length direction when the FPC board is accommodated, and a positioning column 130 is set in each expansion and contraction positioning area 120. The FPC board is fixed by the positioning column 130, which can effectively reduce the expansion and contraction of the FPC board in the length direction, thereby reducing the offset of the FPC board in the length direction during mounting.

[0030] Exemplarily, the length of the expansion and shrinkage positioning zone 120 is less than or equal to 200 mm. For example, based on the material's own shrinkage rate of -1.02%, after the original product is divided into multiple sections for expansion and shrinkage control, if the length of each section does not exceed 200 mm, the position offset of each section does not exceed 2 mm, which can effectively shorten the offset in the length direction of the FPC board.

[0031] The FPC board is provided with a patch area and a non-patch area. In order to ensure that the mounting position of the components is adapted to the pad position on the FPC board when mounting components on the FPC board, it is necessary to at least ensure that the expansion and contraction of the patch area of ​​the FPC board is within the expected range. Of course, if conditions permit, the expansion and contraction of the patch area and the non-patch area of ​​the FPC board can also be controlled to ensure that the overall expansion and contraction of the FPC board is within the expected range. Please refer to Figure 1 and Figure 2 In some application examples, the positioning column 130 is set in the middle of the expansion and contraction positioning area 120, and the middle part of each expansion and contraction positioning area 120 can be fixed, so as to control the expansion and contraction of the two end areas of the expansion and contraction positioning area 120. In other application examples, the positioning column 130 is set at the end of the expansion and contraction positioning area 120, and the expansion and contraction of the middle area of ​​the expansion and contraction positioning area 120 can be controlled. In some other application examples, the positioning column 130 is set in the middle and end of the expansion and contraction positioning area 120, and the expansion and contraction of the expansion and contraction positioning area 120 can be strengthened.

[0032] Please refer to Figure 1 The width of the carrier 100 extends along the second direction, wherein the second direction is indicated as the Y-axis direction. There are multiple positioning grooves 110, and the multiple positioning grooves 110 are arranged along the second direction. By providing multiple positioning grooves 110, the amount of FPC boards placed on the carrier 100 can be increased, and the frequency of replacing and placing the FPC boards can be reduced, which is beneficial to improving processing efficiency.

[0033] Please refer to Figure 1 and Figure 3 A plurality of positioning flanges 111 are provided on the carrier board 100 and at the edge of the positioning groove 110. The positioning flanges 111 can be adapted to the concave structure of the edge of the FPC board, so as to facilitate the rough positioning of the FPC board and improve the positioning and placement efficiency of the FPC board.

[0034] Among them, in some application examples, the positioning groove 110 is a single groove, while in other application examples, the positioning groove 110 includes a first sub-groove and a second sub-groove, the first sub-groove and the second sub-groove are adjacently arranged and the length extends along the first direction, and the first sub-groove and the second sub-groove are connected, so that the FPC board can be folded and placed in the first sub-groove and the second sub-groove, shortening the length of the FPC board, which is conducive to adapting to the size requirements of the working range of the equipment for mounting components.

[0035] Similarly, multiple positioning flanges 111 are provided on the carrier 100 and at the edges of the first and second sub-grooves. The positioning flanges 111 can be adapted to the concave structure of the edge of the FPC board, which is convenient for rough positioning of the FPC board and is conducive to improving the positioning and placement efficiency of the FPC board.

[0036] In some application examples, the FPC board is welded with a connecting piece, such as a nickel sheet. For the corresponding ones, please refer to Figure 2 As shown in FIG. 1 , a clearance recess 112 is provided on the carrier 100 and at the edge of the positioning groove 110 . The clearance recess 112 is used to avoid air for the connecting piece, which is beneficial for accommodating the FPC board.

[0037] In some application examples, the FPC board is a double-sided board. When components are mounted, components are also mounted on the bottom surface of the FPC board. Air avoidance holes are provided on the carrier 100 and in the positioning groove 110. The air avoidance holes can avoid the components on the bottom surface of the FPC board, which is conducive to adapting the accommodation of the FPC board.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An FPC positioning fixture, applied to an FPC board whose length extends along a first direction, wherein the FPC board is provided with a plurality of positioning holes, characterized in that: include: A carrier plate (100) having a length extending along the first direction, the carrier plate (100) being provided with a positioning groove (110) adapted to the FPC board, and the positioning groove (110) being divided into a plurality of expansion and contraction positioning areas (120) in the first direction; A positioning column (130) is arranged in each of the expansion and contraction positioning areas (120) and is located in the positioning groove (110); the positioning column (130) is adapted to fit the plurality of positioning holes on the FPC board.

2. The FPC positioning fixture according to claim 1, characterized in that: The length of the expansion and contraction positioning area (120) is less than or equal to 200 mm.

3. The FPC positioning fixture according to claim 1, characterized in that: The positioning column (130) is arranged in the middle of the expansion and contraction positioning area (120).

4. The FPC positioning fixture according to claim 1 or 3, characterized in that: The positioning column (130) is arranged at the end of the expansion and contraction positioning area (120).

5. The FPC positioning fixture according to claim 1, characterized in that: The width of the carrier plate (100) extends along the second direction, the number of the positioning grooves (110) is multiple, and the multiple positioning grooves (110) are arranged along the second direction.

6. The FPC positioning fixture according to claim 1 or 5, characterized in that: A plurality of positioning flanges (111) are arranged on the carrier plate (100) and at the edge of the positioning groove (110).

7. The FPC positioning fixture according to claim 1 or 5, characterized in that: The positioning groove (110) comprises a first sub-groove and a second sub-groove, the first sub-groove and the second sub-groove are arranged adjacent to each other and their lengths extend along the first direction, and the first sub-groove and the second sub-groove are connected.

8. The FPC positioning fixture according to claim 7, characterized in that: A plurality of positioning flanges (111) are arranged on the carrier plate (100) and located at the edges of the first sub-groove and the second sub-groove.

9. The FPC positioning fixture according to claim 1, characterized in that: A space-avoiding recess (112) is provided on the carrier plate (100) and at the edge of the positioning groove (110).

10. The FPC positioning fixture according to claim 1 or 9, characterized in that: A clearance hole is provided on the carrier plate (100) and located in the positioning groove (110).

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