CN215601550U - Positioning structure of display screen FPC and backlight FPC - Google Patents
Positioning structure of display screen FPC and backlight FPC Download PDFInfo
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- CN215601550U CN215601550U CN202121385244.8U CN202121385244U CN215601550U CN 215601550 U CN215601550 U CN 215601550U CN 202121385244 U CN202121385244 U CN 202121385244U CN 215601550 U CN215601550 U CN 215601550U
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Abstract
The utility model discloses a positioning structure of a display screen FPC and a backlight FPC, which comprises a main FPC and a backlight FPC, wherein the main FPC is connected with a first bonding pad, the backlight FPC is connected with a second bonding pad, a first golden finger on the first bonding pad is welded with a second golden finger on the second bonding pad, a first circular positioning hole and a first waist-shaped positioning hole are formed in the first bonding pad, a second circular positioning hole and a second waist-shaped positioning hole are formed in the second bonding pad, the first circular positioning hole and the second circular positioning hole are in counterpoint communication and are used for a first probe of an automatic welding machine to pass through, and the first waist-shaped positioning hole and the second waist-shaped positioning hole are in counterpoint communication and are used for a second probe of the automatic welding machine to pass through. The technical scheme can effectively improve the mutual alignment precision of the two FPCs of the automatic welding display screen and the backlight source, and reduce the reject ratio of welded finished products.
Description
Technical Field
The utility model relates to the technical field of mutual welding and positioning of a display screen FPC and a backlight FPC, in particular to a positioning structure of the display screen FPC and the backlight FPC.
Background
The power connection of the backlight source of the liquid crystal display screen mainly adopts manual electric soldering iron welding, and the production efficiency and consistency are not good as those of automatic machine welding. A FPC that is used for automatic weld machine in the existing market when the welding counterpoints, has the counterpoint deviation to lead to the problem that the finished product defective rate is high after the welding.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, and the positioning structure with high alignment precision of the two FPCs of the display screen and the backlight source is provided.
The technical scheme adopted by the utility model is as follows: the utility model provides a display screen FPC and backlight FPC's location structure, includes main FPC and FPC in a poor light, main FPC is connected with first pad, FPC in a poor light is connected with the second pad, first golden finger on the first pad with second golden finger welding on the second pad, first circular locating hole and first waist type locating hole have been seted up on the first pad, second circular locating hole and second waist type locating hole have been seted up on the second pad, first circular locating hole and the circular locating hole counterpoint intercommunication of second just supply the first probe of automatic weld machine to pass, first waist type locating hole and the second waist type locating hole counterpoint intercommunication just supply the second probe of automatic weld machine to pass.
The utility model has the beneficial effects that: the first circular positioning hole and the first waist-shaped positioning hole are formed in the first bonding pad, the second circular positioning hole and the second waist-shaped positioning hole are formed in the second bonding pad, the second bonding pad is stacked on the second bonding pad, the first probe of the automatic welding machine penetrates through the first circular positioning hole and the second circular positioning hole, the second probe of the automatic welding machine penetrates through the first waist-shaped positioning hole and the second waist-shaped positioning hole, the aperture diameter of the waist-shaped positioning hole is larger than that of the second probe, the second probe can move in the waist-shaped hole, products cannot be crushed due to the probe due to product tolerance, and therefore the mutual positioning accuracy of the two bonding pads is improved.
Furthermore, the second circular positioning hole and the second waist-shaped positioning hole are distributed at intervals along the length direction of the second pad, the interval distance between the first circular positioning hole and the first waist-shaped positioning hole is the same as the distance between the second circular positioning hole and the second waist-shaped positioning hole, and through the technical scheme, the distance between the first circular positioning hole and the first waist-shaped positioning hole is the same as the distance between the second circular positioning hole and the second waist-shaped positioning hole and is distributed at intervals along the length direction, so that the positioning stability is favorably improved.
Furthermore, be equipped with on the first pad and be used for the location portion of second pad, through above-mentioned technical scheme, the second pad stacks to the first pad on, location portion can provide preliminary location for the second pad, is favorable to follow-up probe more fast and accurate stretch into in the locating hole, improves positioning accuracy and work efficiency.
Furthermore, location portion includes two location lines that mutual symmetry set up, the second pad stacks to two between the location line, through above-mentioned technical scheme, the second pad stacks to between two location lines, and restriction second pad moves about, improves positioning accuracy.
Furthermore, the positioning line is of an L-shaped structure, and the L-shaped structure enables the second bonding pad to move left and right in a limited mode and can limit the second bonding pad to move downwards to improve positioning accuracy.
Furthermore, the area of the first golden finger is larger than that of the second golden finger, when the second pad is stacked to the first pad, one side edge of the first golden finger exceeds the edge of the second golden finger to form a welding area, and through the technical scheme, the exceeding part of the first golden finger is welded with the second golden finger, so that the first pad and the second pad are prevented from falling off, and the welding yield of products is improved.
Drawings
Fig. 1 is a schematic view of connection of a main FPC and a backlight FPC of the present invention;
fig. 2 is a schematic view of the respective structures of the main FPC and the backlight FPC of the present invention;
description of reference numerals: 1. a main FPC; 11. a first pad; 111. a first circular positioning hole; 112. a first waist-shaped positioning hole; 113. a first golden finger; 12. a positioning part; 121. positioning a line; 2. a backlight FPC; 21. a second pad; 211. a second circular positioning hole; 212. a second waist-shaped positioning hole; 213. and a second golden finger.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-2, the present invention provides a positioning structure of a display screen FPC and a backlight FPC, including a main FPC1 and a backlight FPC2, where the main FPC1 is connected to a first bonding pad 11, the backlight FPC2 is connected to a second bonding pad 21, a first gold finger 113 on the first bonding pad 11 is welded to a second gold finger 213 on the second bonding pad 21, the first bonding pad 11 is provided with a first circular positioning hole 111 and a first waist-shaped positioning hole 112, the second bonding pad 21 is provided with a second circular positioning hole 211 and a second waist-shaped positioning hole 212, the first circular positioning hole 111 and the second circular positioning hole 211 are communicated in an aligned manner and are used for a first probe of an automatic welding machine to pass through, and the first waist-shaped positioning hole 112 and the second waist-shaped positioning hole 212 are communicated in an aligned manner and are used for a second probe of an automatic welding machine to pass through; in this embodiment, the first circular positioning hole 111 and the second circular positioning hole 211 have the same size and have a radius of 0.4 mm; the first waist-shaped positioning hole 112 and the second waist-shaped positioning hole 212 are the same in size, the radius is 0.4mm, the length is 1.4mm, and the first probe and the second probe are the same in size and 0.35mm in radius.
The second circular positioning holes 211 and the second waist-shaped positioning holes 212 are distributed at intervals along the length direction of the second pad 21, and the interval distance between the first circular positioning holes 111 and the first waist-shaped positioning holes 112 is the same as the distance between the second circular positioning holes 211 and the second waist-shaped positioning holes 212.
The first bonding pad 11 is provided with a positioning portion 12 for positioning the second bonding pad 21, the positioning portion 12 comprises two positioning lines 121 which are symmetrically arranged, the second bonding pad 21 is stacked between the two positioning lines 121, the positioning lines 121 are of an L-shaped structure, the second bonding pad 21 can be limited to move left and right by the L-shaped structure, the second bonding pad 21 can be limited to move downwards, and positioning accuracy is improved.
The area of the first gold finger 113 is larger than that of the second gold finger 213, when the second bonding pad 21 is overlapped to the first bonding pad 11, one side edge of the first gold finger 113 exceeds the edge of the second gold finger 213 to form a welding area, and the exceeding part of the first gold finger 113 and the second gold finger 213 are welded to each other.
When the backlight FPC is welded with the display screen FPC, the two positioning lines 121 on the first bonding pad 11 provide initial positioning for the second bonding pad 21, the second bonding pad 21 is stacked on the first bonding pad 11, a first probe of the automatic welding machine penetrates through the first circular positioning hole 111 and the second circular positioning hole 211, then a second probe of the automatic welding machine penetrates through the first waist-shaped positioning hole 112 and the second waist-shaped positioning hole 212, the two bonding pads are positioned and fixed, and finally the first golden finger 113 and the second golden finger 213 are welded automatically.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A positioning structure of a display screen FPC and a backlight FPC comprises a main FPC (1) and a backlight FPC (2), the main FPC (1) is connected with a first bonding pad (11), the backlight FPC (2) is connected with a second bonding pad (21), a first golden finger (113) on the first bonding pad (11) is welded with a second golden finger (213) on the second bonding pad (21), characterized in that the first pad (11) is provided with a first circular positioning hole (111) and a first waist-shaped positioning hole (112), a second round positioning hole (211) and a second waist-shaped positioning hole (212) are arranged on the second bonding pad (21), the first circular positioning hole (111) and the second circular positioning hole (211) are communicated in an alignment way and are used for a first probe of an automatic welding machine to pass through, the first waist-shaped positioning hole (112) and the second waist-shaped positioning hole (212) are communicated in an aligned mode and a second probe of the automatic welding machine can penetrate through the first waist-shaped positioning hole and the second waist-shaped positioning hole.
2. The positioning structure of the display screen FPC and the backlight FPC as claimed in claim 1, wherein the second circular positioning holes (211) and the second waist-shaped positioning holes (212) are distributed at intervals along a length direction of the second bonding pads (21), and a distance between the first circular positioning holes (111) and the first waist-shaped positioning holes (112) is the same as a distance between the second circular positioning holes (211) and the second waist-shaped positioning holes (212).
3. The positioning structure of a display screen FPC and a backlight FPC according to claim 1, wherein a positioning portion (12) for positioning the second pad (21) is provided on the first pad (11).
4. The positioning structure of a display screen FPC and a backlight FPC according to claim 3, wherein the positioning portion (12) includes two positioning lines (121) symmetrically arranged with respect to each other, and the second pads (21) are stacked between the two positioning lines (121).
5. The positioning structure of the display screen FPC and the backlight FPC as claimed in claim 4, wherein the positioning lines (121) are in an L-shaped structure.
6. The positioning structure of the display FPC and the backlight FPC as claimed in claim 1, wherein an area of the first gold finger (113) is larger than an area of the second gold finger (213), and when the second bonding pad (21) is stacked on the first bonding pad (11), one side edge of the first gold finger (113) exceeds an edge of the second gold finger (213) to form a soldering region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121385244.8U CN215601550U (en) | 2021-06-22 | 2021-06-22 | Positioning structure of display screen FPC and backlight FPC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121385244.8U CN215601550U (en) | 2021-06-22 | 2021-06-22 | Positioning structure of display screen FPC and backlight FPC |
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| Publication Number | Publication Date |
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| CN215601550U true CN215601550U (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121385244.8U Active CN215601550U (en) | 2021-06-22 | 2021-06-22 | Positioning structure of display screen FPC and backlight FPC |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115550484A (en) * | 2022-03-31 | 2022-12-30 | 荣耀终端有限公司 | Display screen assembly and flexible circuit board welding method |
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2021
- 2021-06-22 CN CN202121385244.8U patent/CN215601550U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115550484A (en) * | 2022-03-31 | 2022-12-30 | 荣耀终端有限公司 | Display screen assembly and flexible circuit board welding method |
| CN115550484B (en) * | 2022-03-31 | 2024-04-05 | 荣耀终端有限公司 | Display screen assembly and flexible circuit board welding method |
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