Liquid crystal screen backlight FPC welding jig

Abstract

The utility model relates to a liquid crystal screen backlight FPC welding jig which comprises a base, a vertical supporting plate and a fixed cover plate. The vertical supporting plate is obliquely connected to the top face of the base, the face, with the included angle larger than 90 degrees, between the vertical supporting plate and the top face of the base is a bearing face, a containing groove extending from the end close to the base to the other end is formed in the bearing face, and two connecting bases located on the two sides of the containing groove are symmetrically arranged on the side, away from the base, of the bearing face. One end of the fixed cover plate is rotatably connected between the two connecting seats, the other end of the fixed cover plate is provided with a notch, and the notch is provided with a metal plate. The welding jig can fix and limit the liquid crystal screen, displacement of the liquid crystal screen in the welding process is avoided, the position accuracy of a welding point is guaranteed, and the product quality is guaranteed; moreover, the welding jig can enable a welding point to be positioned on a horizontal plane, so that the welding difficulty is reduced, and the production efficiency is improved; meanwhile, the whole welding jig is simple in structure, easy and convenient to install and operate and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal screen processing jigs, in particular to a liquid crystal screen backlight source FPC welding jig. Background Art

[0002] FPC is the abbreviation of flexible printed circuit board. It is a flexible printed circuit board made of soft plastic base film, copper foil and special adhesive. It is mainly used for connecting the various components of the LCD screen and the driving circuit.

[0003] During the production and assembly process of LCD screens, the positive and negative poles of the power supply on the LCD backlight FPC need to be welded to the positive and negative poles of the power output of the FPC with the driving circuit installed on the LCD screen, and due to process requirements, the FPC installed on the LCD screen and the backlight need to be bent into the same angle before this welding process, which results in the position of the solder joints on the FPC that is close to a 90-degree right angle with the plane of the LCD screen, and it is very difficult to weld without a support. Therefore, currently, simple right-angle support parts are mostly made to assist welding, but the support parts can only play a certain supporting role and cannot stably fix the LCD screen. During the welding process, it is easy for the LCD screen to shift and cause the solder joints to shift, and the accuracy of welding cannot be guaranteed. In addition, due to the relatively heavy weight of the LCD screen, the LCD screen can only be placed horizontally during the welding process. In this way, the welding position is on a nearly vertical plane, which is not conducive to the staff to perform welding operations and affects the production efficiency. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that most of the welding is assisted by making simple right-angle leaning parts, but the leaning parts can only play a certain leaning role and cannot stably fix the LCD screen. During the welding process, it is easy for the LCD screen to shift and cause the welding point to shift, and the accuracy of welding cannot be guaranteed; and because the weight of the LCD screen is relatively heavy, the LCD screen can only be placed horizontally during the welding process. In this way, the welding position is on a nearly vertical plane, which is not conducive to the staff to perform welding operations and affects the production efficiency.

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal screen backlight FPC welding fixture, comprising:

[0006] Base;

[0007] A vertical support plate, the vertical support plate is obliquely connected to the top surface of the base, the side of the vertical support plate with an angle greater than 90 degrees with the top surface of the base is a bearing surface, a placement groove extending from one end close to the base to the other end is provided on the bearing surface, and two connection seats respectively located on both sides of the placement groove are symmetrically provided on one side of the bearing surface away from the base;

[0008] A fixed cover plate, one end of which is rotatably connected between the two connecting seats, and the other end of which is provided with a notch, on which a metal plate is provided.

[0009] In an embodiment of the present invention, the bearing surface is provided with two grooves respectively located on two sides of the placement groove.

[0010] In one embodiment of the utility model, a flip handle is provided on the fixed cover plate.

[0011] In one embodiment of the utility model, a notch is formed at one end of the metal plate away from the rotation connection point of the fixed cover plate, and the metal plate is a stainless steel plate.

[0012] In one embodiment of the utility model, the connecting seat is a rectangular structure, and an oblong hole extending along the length direction of the connecting seat is provided on the connecting seat. The connecting seat is connected to the vertical support plate at the oblong hole by screws, and a connecting hole is provided on the opposite sides of the two connecting seats respectively, and pins matching the two connecting holes are provided on both sides of the fixed cover plate, and the pins are rotatably connected to the two connecting holes respectively.

[0013] In one embodiment of the utility model, a first magnetic sheet is provided on the fixed cover plate, and a second magnetic sheet is provided on the vertical support plate. When the fixed cover plate is closed on the bearing surface, the position of the first magnetic sheet corresponds to the position of the second magnetic sheet.

[0014] In one embodiment of the present invention, a welding area is marked on the base, and when the fixed cover plate is covered on the bearing surface, the position of the metal plate corresponds to the position of the welding area.

[0015] In one embodiment of the present invention, an antistatic component is arranged parallel to the top of the base.

[0016] In an embodiment of the present invention, the fixed cover plate is covered with an anti-static rubber.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The utility model discloses a FPC welding jig for LCD backlight source, comprising a base, a vertical support plate and a fixed cover plate; the vertical support plate is connected to the top surface of the base at an angle, and the side with an angle greater than 90 degrees between the vertical support plate and the top surface of the base is its bearing surface, and a placement groove extending from one end close to the base to the other end is provided on the bearing surface, and two connection seats respectively located on both sides of the placement groove are symmetrically provided on the side of the bearing surface far from the base; one end of the fixed cover plate is rotatably connected between the two connection seats, and the other end of the fixed cover plate is provided with a notch, and a metal plate is provided on the notch. The welding jig can fix and limit the LCD screen, avoid displacement of the LCD screen during welding, ensure the position accuracy of the welding point, and ensure the quality of the product; and the welding jig can make the welding point located on a horizontal plane, reduce the difficulty of welding, and thus improve the efficiency of production; at the same time, the entire welding jig has a simple structure, is easy to install and operate, and is suitable for practical use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1 This is a schematic structural diagram of a fixed cover plate of a liquid crystal screen backlight FPC welding fixture of a preferred embodiment of the utility model when it is closed;

[0021] Figure 2 This is a structural schematic diagram of a preferred embodiment of the utility model when the fixed cover of the LCD backlight FPC welding fixture is opened;

[0022] Figure 3 This is a schematic structural diagram of a fixed cover plate of a liquid crystal screen backlight FPC welding fixture according to a preferred embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the relative positions of the fixed cover plate of the LCD backlight FPC welding fixture of the preferred embodiment of the utility model and the vertical support plate when opened;

[0024] Figure 5 It is a schematic diagram of the welding area of ​​the LCD backlight FPC welding fixture of the preferred embodiment of the utility model.

[0025] Explanation of the figure marks in the specification: 1. Base; 11. Welding area; 2. Vertical support plate; 21. Placement slot; 22. Connecting seat; 23. Groove; 3. Fixed cover plate; 31. Metal plate; 4. Flip handle; 5. First magnetic sheet; 6. Second magnetic sheet; 7. Anti-static component. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] Embodiment 1

[0028] Reference Figure 1-Figure 5 As shown, the utility model is a liquid crystal screen backlight FPC welding fixture, comprising:

[0029] Base 1;

[0030] A vertical support plate 2, the vertical support plate 2 is obliquely connected to the top surface of the base 1, and a side of the vertical support plate 2 with an angle greater than 90 degrees with the top surface of the base 1 is a bearing surface, a placement groove 21 extending from one end close to the base 1 to the other end is provided on the bearing surface, and two connection seats 22 respectively located on both sides of the placement groove 21 are symmetrically provided on one side of the bearing surface away from the base 1;

[0031] The fixed cover plate 3 has one end rotatably connected between the two connecting seats 22 , and the other end of the fixed cover plate 3 is provided with a notch, on which a metal plate 31 is provided.

[0032] Usage process: in the initial state, the fixed cover plate 3 is covered on the vertical support plate 2; when performing welding operation, first flip the fixed cover plate 3 to the open state, and then gently place the LCD screen to be processed into the placement groove 21 on the vertical support plate 2; then flip the fixed cover plate 3 so that the fixed cover plate 3 covers the vertical support plate 2, and the first magnetic suction piece 5 on the fixed cover plate 3 after covering interacts with the second magnetic suction piece 6 on the vertical support plate 2, so that the fixed cover plate 3 restricts the LCD screen in the placement groove 21; at this time, the FPC is attached to the top of the base 1, and the conductive metal hole point on the FPC that needs to be welded is just located in the welding area 11 (and at this time, the ZIF (i.e., the connection line for plugging) at the end of the FPC is located within the range of the anti-static component 7, which can effectively prevent static electricity from damaging other electronic components on the FPC through the ZIF), the operator adjusts the electric soldering iron to a suitable temperature according to the process requirements to perform spot welding on the welding points, and after welding is completed, open the fixed cover plate 3 to take out the LCD screen for the next process.

[0033] Reference Figure 1 and Figure 2 As shown, further, two grooves 23 are provided on the bearing surface, which are respectively located on both sides of the placement groove 21. Specifically, the two grooves 23 are connected to the placement groove 21, and the bottom surface of the groove 23 is lower than the bottom surface of the placement groove 21, so that the operator can take the LCD screen out of the placement groove 21 after welding is completed.

[0034] Furthermore, a flip handle 4 is provided on the fixed cover plate 3, and the fixed cover plate 3 can be flipped by the flip handle.

[0035] Furthermore, a notch is provided at one end of the metal plate 31 away from the rotating connection point of the fixed cover plate 3, and the metal plate 31 is a stainless steel plate. Specifically, during the welding process, the metal plate 31 is in close contact with the FPC at the end of the LCD screen, and the metal plate 31 can quickly dissipate the high temperature generated during the welding process, and can prevent the heat at the soldering point from being transferred to the electronic components at the other end through the metal wire on the FPC, thereby avoiding damage to the electronic components and ensuring the final quality of the product. Specifically, a plurality of first threaded holes are provided on the fixed cover plate 3 near its notch, and second threaded holes corresponding to the positions of the first threaded holes are provided on the metal plate 31 and are installed in parallel at the notch of the fixed cover plate 3 by screws.

[0036] Furthermore, the connection seat 22 is a rectangular parallelepiped structure, and an oblong hole extending along the length direction thereof is provided on the connection seat 22. The connection seat 22 is connected to the vertical support plate 2 at the oblong hole by screws, and a connection hole is provided on the opposite sides of the two connection seats 22, respectively. Pins matching the two connection holes are provided on both sides of the fixed cover plate 3, respectively, and the pins are rotatably connected to the two connection holes. It can be imagined that the position of the connection seat 22 on the vertical support plate 2 can be adjusted within a certain range through the oblong hole provided on the connection seat 22, which is conducive to ensuring the relative position relationship between the fixed cover plate 3 and the vertical support plate 2.

[0037] Furthermore, a first magnetic sheet 5 is provided on the fixed cover plate 3, and a second magnetic sheet 6 is provided on the vertical support plate 2. When the fixed cover plate 3 is covered on the bearing surface, the position of the first magnetic sheet 5 corresponds to the position of the second magnetic sheet 6.

[0038] Reference Figure 1 , Figure 2 and Figure 5 As shown, further, a welding area 11 is marked on the base 1 , and when the fixed cover plate 3 is covered on the bearing surface, the position of the metal plate 31 corresponds to the position of the welding area 11 .

[0039] Furthermore, an antistatic component 7 is arranged parallel to the top of the base 1 , and the antistatic component 7 may be an antistatic glue.

[0040] Furthermore, the fixed cover 3 is covered with an antistatic rubber, which can play an antistatic role and also prevent the fixed cover 3 from damaging the LCD screen during opening and closing. It should be noted that the antistatic rubber should be placed away from the position of the first magnetic sheet 5.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A LCD backlight FPC welding fixture, characterized in that: include: Base; A vertical support plate, the vertical support plate is obliquely connected to the top surface of the base, the side of the vertical support plate with an angle greater than 90 degrees with the top surface of the base is a bearing surface, a placement groove extending from one end close to the base to the other end is provided on the bearing surface, and two connection seats respectively located on both sides of the placement groove are symmetrically provided on one side of the bearing surface away from the base; A fixed cover plate, one end of which is rotatably connected between the two connecting seats, and the other end of which is provided with a notch, on which a metal plate is provided.

2. The LCD backlight FPC welding fixture according to claim 1, characterized in that: The bearing surface is provided with two grooves respectively located on two sides of the placement groove.

3. The LCD backlight FPC welding fixture according to claim 1, characterized in that: The fixed cover plate is provided with a flip handle.

4. The LCD backlight FPC welding fixture according to claim 1, characterized in that: A notch is provided at one end of the metal plate away from the rotation connection point of the fixed cover plate, and the metal plate is a stainless steel plate.

5. The LCD backlight FPC welding jig according to claim 1, characterized in that: The connecting seat is a rectangular parallelepiped structure, and is provided with an oblong hole extending along its length direction. The connecting seat is connected to the vertical support plate at the oblong hole by screws, and a connecting hole is respectively provided on the opposite sides of the two connecting seats. Pins matching the two connecting holes are respectively provided on both sides of the fixed cover plate, and the pins are rotatably connected to the two connecting holes.

6. The LCD backlight FPC welding jig according to claim 1, characterized in that: The fixed cover plate is provided with a first magnetic sheet, and the vertical support plate is provided with a second magnetic sheet. When the fixed cover plate is covered on the bearing surface, the position of the first magnetic sheet corresponds to the position of the second magnetic sheet.

7. The LCD backlight FPC welding jig according to claim 1, characterized in that: A welding area is marked on the base, and when the fixed cover plate is covered on the bearing surface, the position of the metal plate corresponds to the position of the welding area.

8. The LCD backlight FPC welding fixture according to claim 1, characterized in that: An antistatic component is arranged in parallel on the top of the base.

9. The LCD backlight FPC welding jig according to claim 1, characterized in that: The fixed cover plate is covered with an anti-static rubber.

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