Clamping plate structure of PCB (printed circuit board) of metal-based power supply module

Abstract

The utility model relates to a clamping plate structure of a PCB of a metal-based power supply module, which belongs to the technical field of PCBs and comprises a shell, a moving mechanism is arranged in the shell, two moving plates are arranged on the moving mechanism, box bodies are fixed on opposite sides of the two moving plates, and fixing mechanisms are arranged in the box bodies. According to the clamping plate structure of the metal-based power supply module PCB, the metal-based power supply module PCB is placed between the two clamping plates, the first motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear and the first threaded rod to rotate together, the first threaded rod drives the moving block to move, and when the moving block moves, the second bevel gear and the first threaded rod are driven to rotate together. When the movable blocks move, the two hinge rods are driven to rotate at the same time, the movable blocks enable the two movable blocks to move relatively at the same time through the hinge rods, and when the movable blocks move, the clamping plates are driven to move together through the connecting rods, so that the metal-based power module PCB is clamped and fixed through the clamping plates, and tin spraying of the metal-based power module PCB is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB boards, and particularly relates to a clamping plate structure of a metal-based power module PCB board. Background Technique

[0002] The tin spraying process is to add an antioxidant layer on the welding surface of the circuit board. The vertical tin spraying line is to hang the high thermal conductivity metal-based power module PCB board to be sprayed with tin on the pressing pin hanging holes for tin spraying treatment. The high thermal conductivity metal-based power module PCB tin spraying board needs to drill a 3.175 mm hanging hole during drilling to perform hanging board tin spraying production during tin spraying.

[0003] Problems such as missing drilling and small holes of the tin spraying hanging holes of the high thermal conductivity metal-based power module PCB board will cause the hanging holes to be unable to be used normally during tin spraying production. There is also a risk that the pressing pieces on the hanging holes will scratch the inside of the board. If the hanging holes are too large, it will cause the board parts to be damaged and delaminated during the tin spraying pulling process, resulting in scrap. The problem of lacking effective process control ability is an urgent technical problem to be solved in the current field. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a clamping plate structure of a metal-based power module PCB board, which has the advantages of convenient fixation and solves the problem of inconvenient fixation of the existing metal-based power module PCB board.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A clamping plate structure of a metal-based power module PCB board, including a housing, a moving mechanism is arranged inside the housing, two moving plates are arranged on the moving mechanism, boxes are fixed on the opposite sides of the two moving plates, and a fixing mechanism is arranged inside the boxes;

[0006] The fixing mechanism includes four vertical plates fixed on the opposite sides of the inner cavities of the two boxes. A first motor is fixed on the back of the front vertical plate, a first bevel gear is fixed on the output shaft of the first motor, the fixing mechanism further includes a first threaded rod rotatably connected between the upper and lower sides of the inner cavity of the box through a bearing seat, a second bevel gear meshing with the first bevel gear is fixed on the outer surface of the first threaded rod, a moving block is threadedly connected to the outer surface of the first threaded rod, hinge rods are hinged on the front and rear sides of the moving block, movable blocks are hinged on the opposite sides of the two hinge rods, connecting rods are fixed on the opposite sides of the two movable blocks, and clamping plates are fixed on the opposite sides of the two connecting rods.

[0007] Furthermore, sliding rods are fixed on the opposite sides of the two vertical plates, and the movable blocks are slidably connected to the outer surfaces of the sliding rods.

[0008] Furthermore, two limiting rods are fixed to opposite sides of the inner cavities of the two boxes, and the moving blocks are slidably connected to the outer surfaces of the limiting rods.

[0009] Furthermore, through holes are formed in opposite sides of the two boxes, and the movable blocks are slidably connected to the interiors of the through holes.

[0010] Furthermore, the moving mechanism includes a second motor fixed to the upper surface of the inner cavity of the housing. A first gear is fixed to the output shaft of the second motor. The moving mechanism further includes two second threaded rods rotatably connected between the upper and lower sides of the inner cavity of the housing through bearing seats. Second gears meshing with the first gear are fixed to the outer surfaces of the second threaded rods. Two movable plates are threadedly connected to the outer surfaces of the second threaded rods, and fixing rods are fixed to both the left and right sides of the movable plates.

[0011] Furthermore, the threads of the second threaded rods are in two sections with opposite directions. The fixing rods are L-shaped, and the moving plates are fixed to the fronts of the two fixing rods.

[0012] Furthermore, two vertical rods are fixed between the upper and lower sides of the inner cavity of the housing, and the movable plates are slidably connected to the outer surfaces of the vertical rods.

[0013] Furthermore, limiting holes are formed in both the left and right sides of the housing, and the fixing rods are slidably connected to the interiors of the limiting holes.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] 1. For the clamping plate structure of the metal-based power module PCB board, through the fixing mechanism, the metal-based power module PCB board is placed between the two clamping plates. The first motor drives the first bevel gear to rotate, and through the first bevel gear, the second bevel gear and the first threaded rod rotate together, causing the moving block to move. The moving block makes the two movable blocks move relatively simultaneously through two hinge rods. The movable blocks drive the clamping plates to move together through the connecting rods, clamping and fixing the metal-based power module PCB board, which is convenient for spraying tin on the metal-based power module PCB board.

[0016] 2. For the clamping plate structure of the metal-based power module PCB board, through the moving mechanism, the second motor drives the first gear to rotate, driving the second gear and the second threaded rod to rotate, causing the two movable plates to move relatively simultaneously. The movable plates drive the moving plates to move together through the fixing rods, and drive the boxes and the fixing mechanism to move, which is convenient for adjusting the position of the fixing mechanism according to the size of the metal-based power module PCB board, and is beneficial for clamping and fixing the metal-based power module PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 It is a schematic diagram of the left side structure of the fixing mechanism of the present utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the moving mechanism of the present utility model.

[0020] In the figure: 1 housing, 2 moving mechanism, 201 second motor, 202 first gear, 203 second threaded rod, 204 second gear, 205 movable plate, 206 fixed rod, 3 box body, 4 fixing mechanism, 401 vertical plate, 402 first motor, 403 first bevel gear, 404 second bevel gear, 405 first threaded rod, 406 moving block, 407 articulated rod, 408 movable block, 409 connecting rod, 410 clamping plate, 5 moving plate. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 , a clamping plate structure for a metal-based power module PCB board in this embodiment includes a housing 1. A moving mechanism 2 is provided inside the housing 1. Two moving plates 5 are provided on the moving mechanism 2. Box bodies 3 are fixed on the opposite sides of the two moving plates 5. A fixing mechanism 4 is provided inside the box body 3. The metal-based power module PCB board is clamped and fixed by the fixing mechanism 4. The position of the box body 3 can be conveniently adjusted according to the size of the metal-based power module PCB board through the moving mechanism 2, which is beneficial to clamping and fixing the metal-based power module PCB board.

[0023] Please refer to Figure 2 , in order to facilitate clamping and fixing of the metal-based power module PCB board, the fixing mechanism 4 in this embodiment includes four vertical plates 401 fixed on the opposite sides of the inner cavities of the two box bodies 3. A first motor 402 is fixed on the back of the front vertical plate 401. A first bevel gear 403 is fixed on the output shaft of the first motor 402. The fixing mechanism 4 further includes a first threaded rod 405 rotatably connected between the upper and lower sides of the inner cavity of the box body 3 through a bearing seat. A second bevel gear 404 meshing with the first bevel gear 403 is fixed on the outer surface of the first threaded rod 405. The first motor 402 drives the first bevel gear 403 to rotate, and the second bevel gear 404 and the first threaded rod 405 are driven to rotate together through the first bevel gear 403.

[0024] The outer surface of the first threaded rod 405 is threadedly connected with a moving block 406. By rotating the first threaded rod 405, the moving block 406 is driven to move. Both the front and rear sides of the moving block 406 are hinged with hinge rods 407. Both the opposite sides of the two hinge rods 407 are hinged with movable blocks 408. When the moving block 406 moves, the movable blocks 408 are driven to move through the hinge rods 407. Both the opposite sides of the two movable blocks 408 are fixed with connecting rods 409, and both the opposite sides of the two connecting rods 409 are fixed with clamping plates 410 for clamping and fixing the metal-based power module PCB board.

[0025] Wherein, both the opposite sides of the two vertical plates 401 are fixed with sliding rods, and the movable blocks 408 are slidably connected to the outer surfaces of the sliding rods, which increases the stability of the movable blocks 408 when moving and prevents the movable blocks 408 from rotating during the moving process. Both the opposite sides of the inner cavities of the two boxes 3 are fixed with two limiting rods, and the moving block 406 is slidably connected to the outer surfaces of the limiting rods, which increases the stability of the moving block 406 when moving.

[0026] In addition, through holes are formed in both the opposite sides of the two boxes 3, and the movable blocks 408 are slidably connected to the interiors of the through holes, which facilitates the movable blocks 408 to drive the clamping plates 410 to move through the connecting rods 409 to clamp and fix the metal-based power module PCB board.

[0027] It should be noted that improving the clamping method of the metal-based power module PCB board for tin spraying not only cancels the holes for tin spraying hanging pins, improves the drilling efficiency, the pressing piece clamps the edge of the board, and only 5 mm of the board edge is required to meet the clamping and pressing requirements, greatly improving the utilization rate of the board. The clamping plate does not enter the unit and there is no risk of scratching. By transforming the clamping method of the equipment, the traditional process defect handling method is subverted, and then the tin spraying operation method is improved, saving the scrap cost of the hanging hole clamping piece scratching.

[0028] In the fixing mechanism 4 of this embodiment, the metal-based power module PCB board is placed between the two clamping plates 410. The first motor 402 drives the first bevel gear 403 to rotate, and the second bevel gear 404 and the first threaded rod 405 are driven to rotate together through the first bevel gear 403, so that the moving block 406 moves. The moving block 406 makes the two movable blocks 408 move relatively at the same time through the two hinge rods 407, and the movable blocks 408 drive the clamping plates 410 to move together through the connecting rods 409 to clamp and fix the metal-based power module PCB board, which is convenient for tin spraying of the metal-based power module PCB board.

[0029] Please refer to Figure 3, for the convenience of adjusting the position, the moving mechanism 2 in this embodiment includes a second motor 201 fixed to the upper surface of the inner cavity of the housing 1. A first gear 202 is fixed to the output shaft of the second motor 201. The moving mechanism 2 further includes two second threaded rods 203 rotatably connected between the upper and lower sides of the inner cavity of the housing 1 through bearing seats. A second gear 204 meshing with the first gear 202 is fixed to the outer surface of the second threaded rod 203. The second motor 201 drives the first gear 202 to rotate, driving the second gear 204 and the second threaded rod 203 to rotate. Two movable plates 205 are threadedly connected to the outer surface of the second threaded rod 203. Fixed rods 206 are fixed to both the left and right sides of the movable plate 205. By simultaneously rotating the two second threaded rods 203, the two movable plates 205 are driven to move relatively or away from each other simultaneously.

[0030] Among them, the thread of the second threaded rod 203 has two sections with opposite thread directions. By simultaneously rotating the two second threaded rods 203, the two movable plates 205 are driven to move relatively or away from each other simultaneously. The fixed rod 206 is L-shaped. The moving plate 5 is fixed to the front of the two fixed rods 206. When the movable plate 205 moves, it will drive the moving plate 5 to move through the fixed rod 206.

[0031] In addition, two vertical rods are fixed between the upper and lower sides of the inner cavity of the housing 1. The movable plate 205 is slidably connected to the outer surface of the vertical rod, increasing the stability of the movable plate 205 when it moves. Limiting holes are provided on both the left and right sides of the housing 1. The fixed rod 206 is slidably connected to the inside of the limiting hole, facilitating the movable plate 205 to drive the moving plate 5 to move through the fixed rod 206.

[0032] In the moving mechanism 2 of this embodiment, the second motor 201 drives the first gear 202 to rotate, driving the second gear 204 and the second threaded rod 203 to rotate, causing the two movable plates 205 to move relatively simultaneously. The movable plate 205 drives the moving plate 5 to move together through the fixed rod 206, and drives the box body 3 and the fixing mechanism 4 to move, facilitating the adjustment of the position of the fixing mechanism 4 according to the size of the metal-based power module PCB board, which is beneficial to clamping and fixing the metal-based power module PCB board.

[0033] The working principle of the above embodiment is as follows:

[0034] (1) Place the metal-based power module PCB board between two clamping plates 410. Start the first motor 402. The first motor 402 drives the first bevel gear 403 to rotate. The first bevel gear 403 drives the second bevel gear 404 and the first threaded rod 405 to rotate together. The first threaded rod 405 drives the moving block 406 to move. When the moving block 406 moves, it will drive two articulated rods 407 to rotate simultaneously. The moving block 406 makes two movable blocks 408 move relatively simultaneously through the articulated rods 407. The movable blocks 408 will slide on the outer surface of the sliding rod to increase the stability when the movable blocks 408 move. When the movable blocks 408 move, they will drive the clamping plates 410 to move together through the connecting rods 409, so that the clamping plates 410 clamp and fix the metal-based power module PCB board, which is convenient for spraying tin on the metal-based power module PCB board.

[0035] (2) Start the second motor 201. The second motor 201 drives the first gear 202 to rotate. The first gear 202 drives two second gears 204 to rotate simultaneously. The second gears 204 drive the second threaded rod 203 to rotate. Since the thread directions of the two sections of the second threaded rod 203 are opposite, the second threaded rod 203 rotates to drive two movable plates 205 to move relatively simultaneously. The movable plates 205 will drive the moving plate 5 to move together through the fixed rods 206, so that the two moving plates 5 move relatively simultaneously. The moving plates 5 drive the box body 3 and the fixing mechanism 4 to move, which is convenient to adjust the position of the fixing mechanism 4 according to the size of the metal-based power module PCB board, and is beneficial to clamping and fixing the metal-based power module PCB board.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal-based power module PCB board clamping structure, comprising a housing (1), characterized in that: A moving mechanism (2) is provided inside the housing (1), two moving plates (5) are provided on the moving mechanism (2), a box (3) is fixed on opposite sides of the two moving plates (5), and a fixing mechanism (4) is provided inside the box (3); The fixing mechanism (4) comprises four vertical plates (401) fixed to opposite sides of the inner cavities of the two boxes (3); a first motor (402) is fixed to the back side of the front vertical plate (401); a first bevel gear (403) is fixed to the output shaft of the first motor (402); the fixing mechanism (4) also comprises a first threaded rod (405) rotatably connected between the upper and lower sides of the inner cavity of the box (3) through a bearing seat; a first threaded rod (405) having a first bevel gear (403) fixed to the outer surface thereof. (403) is meshed with a second bevel gear (404), the outer surface of the first threaded rod (405) is threadedly connected to a moving block (406), the front and rear sides of the moving block (406) are hinged with hinged rods (407), the two hinged rods (407) are hinged with movable blocks (408) on the opposite sides, the two movable blocks (408) are fixed with connecting rods (409) on the opposite sides, and the two connecting rods (409) are fixed with clamping plates (410) on the opposite sides.

2. The metal-based power module PCB board clamping structure according to claim 1, characterized in that: A sliding rod is fixed on the opposite sides of the two vertical plates (401), and the movable block (408) is slidably connected to the outer surface of the sliding rod.

3. The metal-based power module PCB board clamping structure according to claim 1, characterized in that: Two limiting rods are fixed on opposite sides of the inner cavities of the two boxes (3), and the moving blocks (406) are slidably connected to the outer surfaces of the limiting rods.

4. The metal-based power module PCB board clamping structure according to claim 1, characterized in that: Through holes are provided on opposite sides of the two boxes (3), and the movable block (408) is slidably connected to the inside of the through holes.

5. The metal-based power module PCB board clamping structure according to claim 1, characterized in that: The moving mechanism (2) comprises a second motor (201) fixed to the upper surface of the inner cavity of the shell (1), the output shaft of the second motor (201) being fixed with a first gear (202), the moving mechanism (2) further comprising two second threaded rods (203) rotatably connected between the upper and lower sides of the inner cavity of the shell (1) via a bearing seat, the outer surface of the second threaded rod (203) being fixed with a second gear (204) meshing with the first gear (202), the outer surface of the second threaded rod (203) being threadedly connected with two movable plates (205), and fixed rods (206) being fixed to the left and right sides of the movable plate (205).

6. The metal-based power module PCB board clamping structure according to claim 5, characterized in that: The thread of the second threaded rod (203) is divided into two sections, and the two sections of thread are in opposite directions. The fixed rod (206) is L-shaped, and the movable plate (5) is fixed to the front sides of the two fixed rods (206).

7. The metal-based power module PCB board clamping structure according to claim 5, characterized in that: Two vertical rods are fixed between the upper and lower sides of the inner cavity of the shell (1), and the movable plate (205) is slidably connected to the outer surfaces of the vertical rods.

8. The metal-based power module PCB board clamping structure according to claim 5, characterized in that: Limiting holes are provided on both the left and right sides of the housing (1), and the fixing rod (206) is slidably connected to the inside of the limiting hole.

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