Welding device for backlight column on PCB

Abstract

The utility model discloses a welding device for a backlight column on a printed circuit board (PCB), which belongs to the technical field of PCB welding and comprises a backlight plate, the PCB, a main body and a heat conducting head, the backlight plate is assembled on the PCB, a fixing column arranged on the backlight plate penetrates through a through hole of the PCB, a heating part of the main body is electrically connected with a power line, and the heat conducting head is electrically connected with the power line. The heat conduction head is detachably arranged on the mounting part of the main body, a welding groove is formed in a welding plane of the heat conduction head, the fixing column extends into the welding groove, and a fixing convex point is formed at the joint of the fixing column and the PCB along with melting of the fixing column, so that the backlight plate is fixed on the PCB. The utility model solves the problem that the position of the backlight plate cannot be fixed due to the fact that the fixing column of the backlight plate is flattened during welding.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB board welding technical field, concretely relates to a welding device for backlight column on PCB board. BACKGROUND

[0002] In the production process of electronic products, as the core of electronic products, PCB board needs to weld various electronic components and wire on the PCB board, and when the backlight plate is not fixed and assembled on the PCB board by using double-sided adhesive, the protruding fixing column of the backlight plate is fused to fix the backlight plate and the PCB board, but the conventional chromium iron is flat, the fixing column of the backlight plate is wiped flat during fusing, cannot play the role of fixing the backlight plate, and if the protruding point is reserved in the operation, the height and width of the protruding point cannot be accurately controlled, which affects the fixing performance and product appearance of the backlight plate assembly. SUMMARY

[0003] The utility model discloses a main purpose is to solve the technical problem existing to a certain extent, proposes a welding device for backlight column on PCB board, solves the problem that the fixing column of the backlight plate is wiped flat during fusing and cannot play the role of fixing the position of the backlight plate.

[0004] The above problems solved by the utility model are realized through the following technical schemes:

[0005] A welding device for backlight column on PCB board is provided, which comprises a backlight plate, a PCB board, a main body and a heat conduction head, the backlight plate is assembled on the PCB board, the fixing column provided on the backlight plate penetrates through the through hole of the PCB board, the heating part of the main body is electrically connected with a power line, the heat conduction head is detachably arranged on the mounting part of the main body, the welding plane of the heat conduction head is provided with a welding groove, the fixing column extends into the welding groove, and a fixing protruding point is formed at the connection between the fixing column and the PCB board by melting the fixing column, so that the backlight plate is fixed on the PCB board.

[0006] In some embodiments, the shape of the welding groove is a circular arc structure.

[0007] In some embodiments, the height of the fixing column extending out of the PCB board is higher than the depth of the welding groove.

[0008] In some embodiments, the depth of the welding groove is 1.5mm.

[0009] In some embodiments, the end surface of the main body in contact with the heat conduction head is provided with an anti-stupid column, and the anti-stupid column is inserted into the slot provided on the heat conduction head.

[0010] In some embodiments, the anti-stupid column is integrally formed with the main body.

[0011] In some embodiments, the fool-proofing post is in interference fit with the slot.

[0012] Compared with the prior art, the technical scheme provided by the application has the following advantages:

[0013] The welding recess is arranged on the welding plane of the heat conduction head, the fixed column of the backlight plate is inserted into the welding recess through the fixed column of the PCB during welding, the fixed column is melted with the heating of the heat conduction head, the fixed protrusion is formed at the connecting position of the melted fixed column and the PCB, the backlight plate is fixed on the PCB through the fixed protrusion, the problem that the fixed column of the backlight plate is wiped flat during welding and the backlight plate cannot be fixed is solved, the welding operation is simple, and the width and height of the fixed protrusion can be controlled, and the appearance of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0015] Figure 1 The utility model is used for the structure diagram of the welding device of the backlight column on the PCB.

[0016] Explanation of reference numerals:

[0017] 1-backlight plate;2-PCB board;3-main body;4-heat conduction head;5-fixed column;6-power line;7-welding recess;8-fixed protrusion;9-fool-proofing post. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application, and obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0019] It should be noted that if the directionality indication (such as up, down, left, right, front, back, etc.) is involved in the embodiments of the present application, the directionality indication is only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directionality indication also changes accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] like Figure 1 As shown, this utility model proposes a welding device for backlight pillars on a PCB board, including a backlight plate 1, a PCB board 2, a main body 3, and a heat-conducting head 4. The backlight plate 1 is assembled on the PCB board 2. The fixing post 5 of the backlight plate 1 passes through the through hole of the PCB board 2. The heating part of the main body 3 is electrically connected to a power line 6. The heat-conducting head 4 is detachably disposed on the mounting part of the main body 3. The welding plane of the heat-conducting head 4 is provided with a welding groove 7, and the welding groove 7 is in the shape of an arc structure.

[0022] In this embodiment, when the heat-conducting head 4 is energized, the resistance wire inside the main body 3 generates heat due to resistance, converting electrical energy into heat energy, which is then transferred to the heat-conducting head 4. The heat-conducting head 4 then welds the fixing post 5. The welding surface of the heat-conducting head 4 is provided with a welding groove 7. The backlight panel 1 is inserted into the welding groove 7 through the fixing post 5 of the PCB board 2. As the heat-conducting head 4 heats up, the fixing post 5 melts. The melted part of the fixing post 5 forms an arc-shaped fixing protrusion 8 at the connection with the PCB board 2. The fixing protrusion 8 firmly fixes the backlight panel 1 to the PCB board 2, solving the problem that the fixing post 5 of the backlight panel 1 is flattened during welding, resulting in the backlight panel 1 not being properly fixed. The welding operation is simple, and the width and height of the fixing protrusion 8 can be controlled, improving the aesthetic appearance of the product.

[0023] It is worth noting that the welding groove 7 is, but is not limited to, an arc structure, designed to fix the fixed protrusion formed after the column 5 melts and fits into the PCB board 2, ensuring the stability of the backlight board 1.

[0024] In this embodiment, the height of the fixing post 5 extending out of the PCB board 2 is higher than the depth of the welding groove 7, and the depth of the welding groove 7 is 1.5mm. This ensures that the fixing post 5 has sufficient melting length and that the fixing post 5 can form a stable fixing protrusion 8 in the welding groove 7 after being heat-melted.

[0025] In another embodiment, the end face of the main body 3 in contact with the heat-conducting head 4 is integrally formed with an anti-stupidity column 9, the anti-stupidity column 9 is inserted into a slot provided on the heat-conducting head 4, the anti-stupidity column 9 is in interference fit with the slot, the anti-stupidity column 9 plays a limiting role to avoid the heat-conducting head 4 from rotating during welding, and the interference fit can facilitate assembly of the heat-conducting head 4.

[0026] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the inventive concept of the present application, or the contents of the present application specification and drawings are included in the patent protection range of the present application.

Claims

1. A soldering device for backlighting posts on a PCB board, characterized in that, The application relates to a backlight plate, a PCB plate, a main body and a heat-conducting head, wherein the backlight plate is assembled on the PCB plate, fixed columns of the backlight plate are arranged to pass through through holes of the PCB plate, a heating part of the main body is electrically connected with a power line, the heat-conducting head is detachably arranged on a mounting part of the main body, a welding plane of the heat-conducting head is arranged with a welding groove, the fixed columns are inserted into the welding groove, and fixed convex points are formed at the connection of the fixed columns and the PCB plate to fix the backlight plate on the PCB plate.

2. The soldering device for backlight posts on PCB boards according to claim 1, characterized in that, The welding groove is in a circular arc structure.

3. The soldering device for backlight posts on PCB boards according to claim 1, characterized in that, The height of the fixed columns extending out of the PCB plate is higher than the depth of the welding groove.

4. The soldering apparatus for backlight posts on PCB boards as claimed in claim 3, wherein, The depth of the welding groove is 1.5 mm.

5. The soldering device for backlight posts on PCB boards as claimed in claim 1, wherein, An anti-stupidity column is arranged on the end surface of the main body in contact with the heat-conducting head, and the anti-stupidity column is inserted into a slot arranged on the heat-conducting head.

6. The soldering device for backlight posts on PCB boards according to claim 5, characterized in that, The anti-stupidity column is integrally formed with the main body.

7. The soldering device for backlighting posts on PCB boards as claimed in claim 5, wherein, The anti-stupidity column is in interference fit with the slot.

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