CN210519032U - Backlight flexible circuit board and electronic equipment - Google Patents
Backlight flexible circuit board and electronic equipment Download PDFInfo
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- CN210519032U CN210519032U CN201920846475.0U CN201920846475U CN210519032U CN 210519032 U CN210519032 U CN 210519032U CN 201920846475 U CN201920846475 U CN 201920846475U CN 210519032 U CN210519032 U CN 210519032U
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- pad
- lead wire
- circuit board
- flexible circuit
- connecting strip
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Abstract
The utility model discloses a flexible circuit board is shaded, package rubbing board body and lead wire portion and weld part that sets up on it, lead wire portion is "U" shape of handstand and lays, lead wire portion with weld part connection, be equipped with the lead wire in the lead wire portion, be equipped with the pad in the weld part, the one end of lead wire extends to the edge of plate body, the other end with the pad is connected, the lead wire with the combination of pad is the multiunit, the bottom of pad is equipped with the copper layer. The lead part is arranged in an inverted U shape, the pad is arranged at one end of the lead part, the connection point of the lead and the pad is positioned at the upper end of the pad, the connection point can only be stressed instantaneously and is not easy to damage, the pad at the lower end can be used even if the pad at the lower end is damaged due to overlarge stress during welding, and the product yield is improved; the copper layer is adopted at the bottom of the bonding pad, so that the hardness and the thickness of the bonding pad area can be increased, and the bonding pad is protected from being damaged easily. The utility model also discloses an electronic equipment of adopting above-mentioned flexible circuit board is shaded.
Description
Technical Field
The utility model relates to a flexible circuit board technical field especially relates to a flexible circuit board and electronic equipment are shaded.
Background
With the popularization of electronic products, people have increasingly demanded mobile phones, tablet computers, electronic watches and the like.
In electronic products, a flexible circuit board (FPC) is the core of its circuit, and almost all functions must be implemented by the FPC. When the backlight and the display screen are welded, the backlight welding wire and the backlight bonding pad of the backlight flexible circuit board need to be welded, soldering iron is used for brushing tin paste from top to bottom, the backlight welding wire needs to be pressed in the process, and the backlight and the display screen are welded after the welding is finished.
The backlight on the existing backlight flexible circuit board is connected with the lower end of the backlight welding disc, the welding is performed from top to bottom in a pressing mode, due to the fact that the pressing force is inconsistent, the contact position of the backlight welding disc and the backlight line is prone to being broken in the continuous pressing process, backlight signals are interrupted, and the yield is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible circuit board in a poor light that can improve the yield.
The utility model provides a flexible circuit board is shaded, includes the plate body and sets up lead wire portion and weld part on it, lead wire portion is "U" shape of handstand and lays, lead wire portion with weld part connection, be equipped with the lead wire in the lead wire portion, be equipped with the pad on the weld part, the one end of lead wire extends to the edge of plate body, the other end with the pad is connected, the lead wire with the combination of pad is the multiunit, the bottom of pad is equipped with the copper layer.
The utility model has the advantages that: the lead part is arranged in an inverted U shape, the pad is arranged at one end of the lead part, the connection point of the lead and the pad is positioned at the upper end of the pad, the connection point can only be stressed instantaneously and is not easy to damage, and the pad at the lower end can be used even if the pad at the lower end is damaged due to overlarge stress during welding, so that the product yield is improved; the copper layer is adopted at the bottom of the bonding pad, so that the hardness and the thickness of the bonding pad area can be increased, and the bonding pad is protected from being damaged easily.
In addition, according to the utility model provides a flexible circuit board in a poor light can also have following additional technical characterstic:
further, the copper layer is a solid structure.
Furthermore, the contact surface of the copper layer and the bonding pad is of a curved surface structure.
Further, a concave structure is arranged on the welding part and located at the welding pad.
Furthermore, the board body is provided with a connecting assembly which is used for being fixedly connected with other circuit elements.
Further, coupling assembling includes first connecting strip and second connecting strip, first connecting strip set up in the edge of plate body, the second connecting strip is skew lead wire portion with the welding part set up in the middle part of plate body, the second connecting strip runs through the plate body sets up, first connecting strip with the second connecting strip all with plate body fixed connection.
Furthermore, the top of the first connecting strip and the top of the second connecting strip are both provided with limiting blocks, and the limiting blocks are located on the top surface of the plate body.
Furthermore, a plurality of salient points are arranged on the top of the bonding pad.
Another object of the present invention is to provide an electronic device using the above-mentioned flexible printed circuit board with a backlight.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a backlight flexible circuit board according to a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the backlight flexible circuit board of FIG. 1;
in the figure: 1-board body, 11-first connecting bar, 12-second connecting bar, 2-lead part, 21-lead, 3-welding part, 31-welding pad, 32-copper layer and 33-bump.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be 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 according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, a first embodiment of the present invention provides a flexible printed circuit board for backlight, including a board body 1, and a lead portion 2 and a soldering portion 3 disposed thereon.
Specifically, lead portion 2 is that "U" of handstand is laid, lead portion 2 with welding portion 3 is connected, be equipped with lead wire 21 on the lead portion 2, be equipped with pad 31 on the welding portion 3, the one end of lead wire 21 extends to the edge of plate body 1, the other end with pad 31 is connected, lead wire 21 with the combination of pad 31 is the multiunit, the bottom of pad 31 is equipped with copper layer 32.
In the present embodiment, the combination of the leads 21 and the pads 31 is 3 groups, and even if one to two groups are damaged, the normal connection of the leads and 21 to the pads 31 can be maintained.
The utility model has the advantages that the lead part 2 is arranged in an inverted U shape, the pad 31 is arranged at one end of the lead part 2, the connection point of the lead 21 and the pad 31 is positioned at the upper end of the pad 31, and the connection point can only be stressed by instantaneous pressure and is not easy to damage in the process of applying pressure from top to bottom for welding;
in addition, even if the welding disc 31 at the lower end is damaged due to overlarge stress during welding, the normal communication of the connecting points can be ensured, the backlight flexible circuit board can be used, and the product yield is improved;
in addition, the copper layer 32 is adopted at the bottom of the bonding pad 31, so that the hardness and the thickness of the bonding pad 31 area can be increased, and the bonding pad 31 is protected from being damaged easily.
Specifically, the copper layer 32 has a solid structure, is firmer than a traditional grid structure, and is not easy to fall off due to high-temperature melting during welding.
Preferably, the contact surface between the copper layer 32 and the pad 31 is a curved surface structure.
It can be understood that, under the same width, the area of the curved surface structure is larger than that of the conventional planar structure, so that the contact area between the copper layer 32 and the pad 31 is enlarged, the average pressure of each point between the pad 31 and the copper layer 32 is reduced, and the pad 31 is further not easy to damage.
In addition, the soldering portion 3 is recessed at the pad 31.
It should be noted that, during the soldering process, the pad 31 and the copper layer 32 are both melted to some extent, and the recessed structure can collect the melt, so as to prevent the melt from spreading around and affecting the overall yield of the backlight flexible circuit board.
Furthermore, a plurality of bumps 33 are disposed on the top of the pad 31, and the bumps 33 are small dots uniformly distributed on the pad 31. When in welding, the bump 31 is smaller, the bump 33 is melted preferentially, so that the backlight welding wire can be welded with the pad 31 quickly.
In addition, be equipped with coupling assembling on the plate body 1, coupling assembling is used for with other circuit element fixed connection.
Specifically, coupling assembling includes first connecting strip 11 and second connecting strip 12, first connecting strip 11 set up in the edge of plate body 1, second connecting strip 12 is skew lead wire portion 2 with weld part 3 set up in the middle part of plate body 1, second connecting strip 12 runs through plate body 1 sets up, first connecting strip 11 with second connecting strip 12 all with 1 fixed connection of plate body.
It will be appreciated that the plate body 1 itself can be fixed to other components by welding, and the fixing effect can be further improved by using the first connecting strip 11 and the second connecting strip 12.
Preferably, the top of the first connecting strip 11 and the top of the second connecting strip 12 are provided with limiting blocks, the limiting blocks are located on the top surface of the board body 1, and when the backlight flexible circuit board is installed, the backlight flexible circuit board can be buckled on other components through the first connecting strip 11 and the second connecting strip 12.
A second embodiment of the present invention provides an electronic device, which at least includes a backlight flexible circuit board in the first embodiment, wherein the electronic device is a mobile phone, and in other embodiments, the electronic device can also be a tablet computer, a display, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. The utility model provides a flexible circuit board is shaded, includes the plate body and sets up lead wire portion and weld part on it, its characterized in that, lead wire portion is "U" shape of handstand and lays, lead wire portion with weld part connection, be equipped with the lead wire in the lead wire portion, be equipped with the pad on the weld part, the one end of lead wire extends to the edge of plate body, the other end with the pad is connected, the lead wire with the combination of pad is the multiunit, the bottom of pad is equipped with the copper layer.
2. The backlit flexible circuit board of claim 1, wherein the copper layer is a solid structure.
3. The backlight flexible circuit board of claim 2, wherein the contact surface of the copper layer with the pad is a curved surface structure.
4. The backlight flexible circuit board of claim 1, wherein the solder part is a recessed structure at the pad.
5. The backlight flexible circuit board of claim 1, wherein the board body is provided with a connecting assembly, and the connecting assembly is used for being fixedly connected with other circuit elements.
6. The backlight flexible circuit board of claim 5, wherein the connecting assembly comprises a first connecting strip and a second connecting strip, the first connecting strip is disposed at an edge of the board body, the second connecting strip is disposed at a middle portion of the board body offset from the lead portion and the welding portion, the second connecting strip is disposed through the board body, and the first connecting strip and the second connecting strip are both fixedly connected to the board body.
7. The backlight flexible circuit board of claim 6, wherein the first connecting strip and the second connecting strip are provided with a limiting block at the top, and the limiting block is located on the top surface of the board body.
8. The backlight flexible circuit board of claim 1, wherein bumps are provided on the top of the pads.
9. An electronic device characterized by comprising the backlight flexible circuit board according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846475.0U CN210519032U (en) | 2019-06-05 | 2019-06-05 | Backlight flexible circuit board and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920846475.0U CN210519032U (en) | 2019-06-05 | 2019-06-05 | Backlight flexible circuit board and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210519032U true CN210519032U (en) | 2020-05-12 |
Family
ID=70577676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920846475.0U Active CN210519032U (en) | 2019-06-05 | 2019-06-05 | Backlight flexible circuit board and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210519032U (en) |
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2019
- 2019-06-05 CN CN201920846475.0U patent/CN210519032U/en active Active
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