An IGBT single tube welding tool

Abstract

The utility model relates to an IGBT single-tube welding tool, comprising a bottom plate, a top plate, a PCB board and an IGBT single tube. The top plate is slidably assembled on the upper side of the bottom plate, a stabilizing mechanism is arranged between the top plate and the bottom plate, the PCB board is assembled on the upper end of the bottom plate, an assembly groove is arranged on the upper end of the bottom plate, a plurality of evenly distributed limit rods are fixedly assembled inside the assembly groove, a plurality of prefabricated holes corresponding to the plurality of limit rods are arranged on the PCB board, the IGBT single tube is provided with a pre-assembled hole, a welding groove connected with the assembly groove is arranged at the lower end of the bottom plate, the stabilizing mechanism comprises a locking pin, a sliding groove is arranged on the left and right sides of the bottom plate, a sliding block is fixedly arranged on the left and right sides of the lower end of the top plate, a mounting hole is arranged on the side of the sliding block close to the bottom plate, the locking pin is slidably assembled inside the mounting hole, a locking spring is fixedly arranged between the locking pin and the mounting hole, a pin groove matching the sliding of the locking pin is arranged on one end of the sliding groove close to the sliding block, a pull rod is fixedly arranged on one end of the locking pin close to the locking spring, and a pull ring is arranged on the pull rod that slides through the sliding block.

Description

Technical Field

[0001] The utility model belongs to the technical field of IGBT single-tube welding tooling, and in particular relates to an IGBT single-tube welding tooling. Background Art

[0002] An IGBT single tube is a monolithic IGBT, which has only one IGBT transistor, a reverse recovery diode and an optional temperature sensor. It can be used in high-voltage, high-frequency, high-power power control applications, such as motor control, frequency converter, UPS, inverter, power supply, etc. The pins of the IGBT single tube are connected to the external circuit to achieve current control and voltage resistance functions. At present, when installing and welding the IGBT single tube, the IGBT single tube and the PCB board are usually fixedly installed between two substrates at the same time, and then the fixedly installed IGBT single tube and the PCB board are welded. In the prior art, screws are usually used to fix the two substrates. The fixing process requires the installation of several screws in sequence, which reduces the installation efficiency and reduces the welding efficiency of the IGBT single tube. Utility Model Content

[0003] The purpose of the utility model is to provide an IGBT single-tube welding tool to solve the problems existing in the background technology.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] An IGBT single-tube welding tool comprises a bottom plate, a top plate, a PCB board and an IGBT single tube, wherein the top plate is slidably assembled on the upper side of the bottom plate, a stabilizing mechanism is arranged between the top plate and the bottom plate, the PCB board is assembled on the upper end of the bottom plate, an assembly groove is arranged on the upper end of the bottom plate, a plurality of uniformly distributed limiting rods are fixedly assembled inside the assembly groove, a plurality of prefabricated holes corresponding to the plurality of limiting rods are arranged on the PCB board, the IGBT single tube is provided with a prefabricated hole, the limiting rod is matched with the prefabricated hole by sliding up and down, and a welding groove connected with the assembly groove is arranged at the lower end of the bottom plate;

[0006] The stabilizing mechanism includes a locking pin, a sliding groove is provided on the left and right sides of the bottom plate, and sliders are fixedly provided on the left and right sides of the lower end of the top plate, the sliders are matched with the sliding grooves for up and down sliding, a mounting hole is provided on the side of the slider close to the bottom plate, the locking pin is slidably assembled inside the mounting hole, a locking spring is fixedly provided between the locking pin and the mounting hole, a pin groove is provided on one end of the sliding groove close to the slider for sliding matching with the locking pin, a pull rod is fixedly provided on one end of the locking pin close to the locking spring, and the pull rod slides through the slider and is equipped with a pull ring.

[0007] Preferably, positioning blocks are fixedly provided at the four corners of the upper end of the bottom plate, and positioning holes corresponding to the positions of the positioning blocks are opened at the four corners of the PCB board.

[0008] Preferably, a backing plate is slidably mounted inside the assembly groove, and the backing plate is provided with a plurality of limiting holes, and the plurality of limiting holes correspond to the positions of the plurality of limiting rods one by one, and the limiting holes are slidably matched with the limiting rods.

[0009] Preferably, a plurality of evenly distributed return springs are installed between the backing plate and the assembly groove.

[0010] Preferably, a plurality of L-shaped baffles are fixedly mounted on the upper end of the pad, and the L-shaped baffles match the corners of the IGBT single tube.

[0011] Preferably, an assembly slope is provided on the lower side of one end of the locking pin close to the pin groove.

[0012] The beneficial effect of the utility model is that during the sliding assembly of the top plate above the bottom plate, the locking pins on both sides can be quickly assembled into the pin grooves by relying on the assembly inclined surfaces, so that the top plate and the bottom plate can be quickly assembled, and the installation efficiency of the operator can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0014] Figure 1 This is a structural schematic diagram of an IGBT single-tube welding tooling of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure explosion of an IGBT single-tube welding tooling of the utility model;

[0016] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0017] Figure 4 This is an exploded schematic diagram of the cross-sectional structure of an IGBT single-tube welding tooling of the utility model;

[0018] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0019] The main component symbols are described as follows:

[0020] Bottom plate 1, top plate 11, PCB board 12, prefabricated hole 121, IGBT single tube 13, pre-installed hole 131, assembly groove 14, limit rod 141, welding groove 142, locking pin 15, slide groove 151, slider 152, mounting hole 153, locking spring 154, pin groove 155, pull rod 156, pull ring 157, assembly slope 158, positioning block 16, positioning hole 161, pad 17, return spring 171, L-shaped baffle 172. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 1-2 As shown in , 4, an IGBT single tube welding tool of the utility model comprises a bottom plate 1, a top plate 11, a PCB board 12 and an IGBT single tube 13, the top plate 11 is slidably assembled on the upper side of the bottom plate 1, a stabilizing mechanism is arranged between the top plate 11 and the bottom plate 1, the PCB board 12 is assembled on the upper end of the bottom plate 1, an assembly groove 14 is arranged on the upper end of the bottom plate 1, a plurality of uniformly distributed limiting rods 141 are fixedly assembled inside the assembly groove 14, a plurality of prefabricated holes 121 corresponding to the positions of the plurality of limiting rods 141 are arranged on the PCB board 12, and the radius of the prefabricated holes 121 of the PCB board 12 is greater than The radius of the limiting rod 141 is conducive to the rapid sliding assembly of the PCB board 12 on the top of the bottom plate 1. The IGBT single tube 13 is provided with a pre-installed hole 131. The limiting rod 141 and the pre-fabricated hole 121 are matched with each other in an up-and-down sliding manner. A welding groove 142 connected with the assembly groove 14 is provided at the lower end of the bottom plate 1. Positioning blocks 16 are fixed at the four corners of the upper end of the bottom plate 1. Positioning holes 161 corresponding to the positions of the positioning blocks 16 are provided at the four corners of the PCB board 12. The matching of the positioning holes 161 and the positioning blocks 16 can stabilize the installation position of the PCB board 12 and prevent the PCB board 12 from shaking at will.

[0023] like Figure 4-5As shown, the stabilizing mechanism includes a locking pin 15, a slide groove 151 is provided on the left and right sides of the bottom plate 1, and a slider 152 is fixedly provided on the left and right sides of the lower end of the top plate 11. The slider 152 slides up and down with the slide groove 151, and the slider 152 and the slide groove 151 are conducive to the rapid sliding assembly of the top plate 11. The slider 152 is provided with a mounting hole 153 on the side close to the bottom plate 1, and the locking pin 15 is slidably assembled inside the mounting hole 153. A locking spring 154 is fixedly provided between the locking pin 15 and the mounting hole 153, and the slide groove 151 is provided with a pin groove that slides with the locking pin 15 on one end close to the slider 152 155, a pull rod 156 is fixedly arranged at one end of the lock pin 15 near the locking spring 154, and the pull rod 156 slides through the slider 152 and is equipped with a pull ring 157, and an assembly slope 158 is arranged at the lower side of one end of the lock pin 15 near the pin groove 155, and the top plate 11 can be quickly slidably installed through the assembly slope 158. When the assembly slope 158 is continuously slidably installed near the side of the bottom plate 1, the lock pin 15 can overcome the elasticity of the locking spring 154 and shrink into the installation hole 153 by abutting against the assembly slope 158, so that the lock pin 15 can quickly enter the pin groove 155 to achieve locking;

[0024] like Figure 3 As shown, a pad 17 is slidably mounted inside the assembly groove 14 up and down, and a plurality of limiting holes are opened on the pad 17, and the plurality of limiting holes correspond to the plurality of limiting rods 141 one by one, and the limiting holes and the limiting rods 141 are slidably matched, and a plurality of evenly distributed return springs 171 are mounted between the pad 17 and the assembly groove 14, and the IGBT single tube 13 can be protected by the pad 17 to avoid hard abutment, and hard extrusion can be avoided by relying on the return spring 171, and a plurality of L-shaped baffles 172 are fixedly mounted on the upper end of the pad 17, and the L-shaped baffles 172 match the corners of the IGBT single tube 13, and the IGBT single tube 13 can be quickly positioned by relying on the L-shaped baffles 172;

[0025] When using the device to install and weld the IGBT single tube 13, place the bottom plate 1 on the working plane, then quickly assemble several IGBT single tubes 13 on the backing plate 17 through the pre-installed holes 131, and then rely on the L-shaped baffle 172 to limit the installation position of the IGBT single tube 13. At this time, the PCB board 12 can be installed downward. Since the four corners of the PCB board 12 are provided with positioning holes 161 matching the positioning blocks 16, the PCB board 12 can be limitedly installed on the upper end of the bottom plate 1. Finally, the top plate 11 can be slid and assembled to the PCB board 12. 2 is fixedly installed with the IGBT single tube 13. During the sliding assembly of the top plate 11, the locking pins 15 on both sides can be quickly assembled into the pin grooves 155 by relying on the assembly inclined surfaces 158, so that the top plate 11 and the bottom plate 1 can be quickly assembled. After the installation is completed, the operator can use a welding machine to weld through the welding grooves 142. After the welding is completed, the fixing state between the top plate 11 and the bottom plate 1 can be quickly released by pulling the pull rings 157 on both sides, and the return springs 171 can help the top plate 11 and the bottom plate 1 to be separated.

[0026] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An IGBT single tube welding tool, comprising a bottom plate, a top plate, a PCB board and an IGBT single tube, characterized in that: The top plate is slidably assembled on the upper side of the bottom plate, a stabilizing mechanism is provided between the top plate and the bottom plate, the PCB is assembled on the upper end of the bottom plate, an assembly slot is provided on the upper end of the bottom plate, a number of evenly distributed limit rods are fixedly assembled inside the assembly slot, a number of prefabricated holes corresponding to the limit rods are provided on the PCB, a pre-assembled hole is provided on the IGBT single tube, the limit rod is matched with the prefabricated hole in an up-and-down sliding manner, and a welding slot connected to the assembly slot is provided on the lower end of the bottom plate; The stabilizing mechanism includes a locking pin, a sliding groove is provided on the left and right sides of the bottom plate, and sliders are fixedly provided on the left and right sides of the lower end of the top plate, the sliders are matched with the sliding grooves for up and down sliding, a mounting hole is provided on the side of the slider close to the bottom plate, the locking pin is slidably assembled inside the mounting hole, a locking spring is fixedly provided between the locking pin and the mounting hole, a pin groove is provided on one end of the sliding groove close to the slider for sliding matching with the locking pin, a pull rod is fixedly provided on one end of the locking pin close to the locking spring, and the pull rod slides through the slider and is equipped with a pull ring.

2. The IGBT single tube welding tool according to claim 1, characterized in that: Positioning blocks are fixedly arranged at the four corners of the upper end of the bottom plate, and positioning holes corresponding to the positions of the positioning blocks are opened at the four corners of the PCB board.

3. The IGBT single tube welding tool according to claim 1, characterized in that: A backing plate is slidably mounted in the assembly groove, and a plurality of limiting holes are formed in the backing plate. The limiting holes correspond to the positions of the limiting rods one by one, and the limiting holes are slidably matched with the limiting rods.

4. The IGBT single tube welding tool according to claim 3, characterized in that: A plurality of evenly distributed return springs are arranged between the backing plate and the assembly groove.

5. The IGBT single tube welding tool according to claim 3, characterized in that: A plurality of L-shaped baffles are fixedly mounted on the upper end of the pad, and the L-shaped baffles match the corners of the IGBT single tube.

6. The IGBT single tube welding tool according to claim 1, characterized in that: The lower side of one end of the locking pin close to the pin groove is provided with an assembly inclined surface.

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