Auxiliary tool for welding IGBT (Insulated Gate Bipolar Translator) and inverter plate

Abstract

The utility model discloses an auxiliary tool for welding an IGBT (Insulated Gate Bipolar Translator) and an inverter plate, which relates to the technical field of inverter plate welding and comprises a fixing frame, a turnover plate rotatably arranged on the fixing frame, a cover plate detachably arranged on the turnover plate, an IGBT arranged between the turnover plate and the cover plate, the inverter plate, a first support column group arranged on one side of the fixing frame and attached to the bottom surface of the turnover plate, and a second support column group arranged on the other side of the fixing frame and attached to the bottom surface of the turnover plate. The second supporting column group is arranged on the other side of the fixing frame and is attached to the top surface of the turnover plate; according to the auxiliary tool for welding the IGBTs and the inverter plate, the multiple IGBTs and the inverter plate can be positioned at the same time in the welding process, the stability of the welding process is improved, the welding quality is ensured, the number of times of overturning of the inverter plate can be reduced, and therefore the labor intensity is reduced, and the welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of inverter board welding technology, specifically to an auxiliary tool for welding IGBTs and inverter boards. Background Technology

[0002] IGBTs (Insulated Gate Bipolar Transistors) are commonly used semiconductor devices in power electronic equipment. They feature high voltage, high current, and fast switching characteristics, and are widely used in frequency converters, inverters, and other equipment. Inverter boards are circuit boards used to convert direct current (DC) to alternating current (AC), and typically require precise soldering with the IGBTs to ensure circuit stability and reliability.

[0003] During the actual soldering process, the IGBT pins need to be inserted into the inverter board and soldered on the back of the inverter board. However, during the soldering process, the IGBT and inverter board are easily affected by external interference, leading to instability in the soldering process and even problems such as cold solder joints and short circuits. In addition, multiple IGBTs need to be soldered on the inverter board, and the inverter board needs to be flipped multiple times during the soldering process, which increases the soldering time and labor intensity. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary tool for welding IGBTs and inverter boards. This auxiliary tool can simultaneously position multiple IGBTs and inverter boards during the welding process, improving the stability of the welding process, ensuring welding quality, and reducing the number of times the inverter board needs to be flipped, thereby reducing labor intensity and improving welding efficiency.

[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: an auxiliary tool for welding IGBTs and inverter boards, including a fixing frame;

[0006] A flip plate, which is rotatably mounted on the fixed frame;

[0007] A cover plate, which is detachably mounted on the flip plate, and an IGBT and an inverter plate are disposed between the flip plate and the cover plate;

[0008] The first support column group is located on one side of the fixed frame and is in contact with the bottom surface of the flip plate;

[0009] The second support column group is located on the other side of the fixing frame and is attached to the top surface of the flip plate.

[0010] In some embodiments, the fixing frame includes a fixing plate, with the first support column group on one side and the second support column group on the other side;

[0011] Two fixing blocks are symmetrically arranged in the middle of the fixing plate, and a rotatable flip plate is provided between the two fixing blocks.

[0012] In some embodiments, the flip plate includes a plate body, and the two ends of the plate body are respectively axially connected to the two fixed blocks;

[0013] A through groove that penetrates the plate body;

[0014] A first placement slot is coaxially disposed on the through slot, and the first placement slot is plugged into the inverter board.

[0015] Two fixing strips are symmetrically arranged on the top of the plate, and the two fixing strips are detachably connected to the cover plate;

[0016] Multiple second placement slots are symmetrically arranged on the two fixed strips, and the second placement slots are plugged into the IGBT.

[0017] In some embodiments, the flip plate further includes a plurality of first magnetic posts, which are embedded in the fixing strip;

[0018] The cover plate includes a plurality of second magnetic pillars, which are symmetrically embedded on both sides of the cover plate, and the second magnetic pillars are attracted to the first magnetic pillars.

[0019] In some embodiments, the distance between the joint between the plate and the fixing block and one side of the plate is between one-fifth and one-third of the width of the plate.

[0020] In some embodiments, the depth of the second placement slot is equal to the height of the IGBT.

[0021] In some embodiments, the attraction between the plurality of second magnetic pillars and the plurality of first magnetic pillars is greater than the sum of the weights of the cover plate, the inverter plate, and the plurality of IGBTs.

[0022] In some embodiments, one side of the fixing strip is flush with the inner wall of one side of the first placement groove.

[0023] In summary, this utility model has the following beneficial effects:

[0024] This IGBT and inverter board welding auxiliary tool, through the first placement slot and the inverter board insertion and cooperation, enables the second placement slot and the IGBT to be inserted and cooperated during the welding process. This allows multiple IGBTs and inverter boards to be positioned simultaneously on the flip plate. Through the cover plate, multiple IGBTs and inverter boards can be fixed, thereby ensuring the accuracy of the welding position, improving the stability of the welding process, ensuring the welding quality, and reducing the number of times the inverter board is flipped, thereby reducing labor intensity and improving welding efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the flip plate of this utility model when it is in an idle state;

[0026] Figure 2 This is a schematic diagram of the structure of the flip plate of this utility model when it is in the welding state.

[0027] In the figure: 1. Fixing frame; 11. Fixing plate; 12. Fixing block; 2. Flip plate; 21. Plate body; 22. Through groove; 23. First placement groove; 24. Fixing strip; 25. Second placement groove; 26. First magnetic column; 3. Cover plate; 31. Second magnetic column; 4. First support column group; 5. Second support column group. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] refer to Figure 1-2An auxiliary tool for welding IGBTs and inverter boards includes a fixed frame 1, a flip plate 2, a cover plate 3, a first support column group 4, and a second support column group 5. The fixed frame 1, flip plate 2, cover plate 3, first support column group 4, and second support column group 5 can all be made of acrylic sheet. The fixed frame 1 serves as the foundation of the entire tool, supporting other components. The flip plate 2 is rotatably mounted on the fixed frame 1 and can support the IGBTs and inverter board, facilitating welding operations. The cover plate 3 is detachably mounted on the flip plate 2, facilitating connection and disassembly between the cover plate 3 and the flip plate 2. Multiple IGBTs are positioned between the flip plate 2 and the cover plate 3. T, Inverter board, can fix multiple IGBTs and inverter boards to prevent them from shifting during the welding process, thereby ensuring welding quality. The first support column group 4 is located on one side of the fixing frame 1 and is attached to the bottom surface of the flip plate 2. It can support the flip plate 2 when it is idle, ensuring the stability of the flip plate 2 during the placement of IGBTs and inverter boards. The second support column group 5 is located on the other side of the fixing frame 1 and is attached to the top surface of the flip plate 2. It can support the flip plate 2 when it is in the welding state, ensuring the stability of the flip plate 2 during the welding process, thereby improving the welding stability and ensuring welding quality.

[0030] In some embodiments, the mounting bracket 1 includes a mounting plate 11 and two mounting blocks 12. The mounting plate 11 serves as the foundation of the entire tool and supports other components. A first support column group 4 is provided on one side of the mounting plate 11. The first support column group 4 may include two symmetrically arranged first support columns, which can support the flip plate 2 when it is in an idle state, ensuring the stability of the IGBT and inverter board during placement. A second support column group 5 is provided on the other side. The second support column group 5 may include two symmetrically arranged second support columns, which can support the flip plate 2 when it is in a welding state, ensuring the stability of the welding process and thus improving the welding quality. The two mounting blocks 12 are symmetrically arranged in the middle of the mounting plate 11, and a rotatable flip plate 2 is provided between the two mounting blocks 12, which can realize the switching of the flip plate 2 between the idle state and the welding state, thereby facilitating the placement and welding of the IGBT and inverter board.

[0031] In some embodiments, the flip plate 2 includes a plate body 21, a through groove 22, a first placement groove 23, two fixing strips 24, and a plurality of second placement grooves 25. The two ends of the plate body 21 are respectively axially connected to two fixing blocks 12, enabling the flip plate 2 to rotate. The through groove 22 penetrates the plate body 21. The first placement groove 23 is coaxially disposed on the through groove 22 and is inserted into the inverter plate to accommodate it, ensuring stable placement. When the inverter plate is placed in the first placement groove 23, the bottom of the inverter plate can be seen through the through groove 22, facilitating the welding operation between the inverter plate and the IGBT. Two fixing strips 24 are symmetrically arranged on the top of the plate 21, and the two fixing strips 24 are detachably connected to the cover plate 3, which facilitates the connection and disassembly of the cover plate 3 and the flip plate 2. Multiple second placement slots 25 are symmetrically arranged on the two fixing strips 24, and the second placement slots 25 are plugged into the IGBTs to fix multiple IGBTs and prevent them from shifting during the welding process, thereby ensuring the welding quality. The specific position of the second placement slots 25 can be set according to the welding position of the IGBTs on the inverter board, so that when the IGBTs are placed in the second placement slots 25, the pins of the IGBTs can be inserted into the inverter board.

[0032] In some embodiments, the flip plate 2 further includes a plurality of first magnetic pillars 26, which are embedded in the fixing strip 24. The cover plate 3 includes a plurality of second magnetic pillars 31, which are symmetrically embedded on both sides of the cover plate 3 and correspond one-to-one with the plurality of first magnetic pillars 26. The second magnetic pillars 31 attract the first magnetic pillars 26. The magnetic attraction between the second magnetic pillars 31 and the first magnetic pillars 26 can realize the fixation between the cover plate 3 and the flip plate 2, thereby fixing the plurality of IGBTs and inverter boards on the flip plate 2 and preventing the IGBTs and inverter boards from shifting during the welding process.

[0033] In some embodiments, the distance between the joint between the plate 21 and the fixing block 12 and one side of the plate 21 is between one-fifth and one-third of the width of the plate 21, so that the center of gravity of the entire flip plate 2 is biased to one side, and the flip plate 2 is stably placed by the support of the first support column group 4 or the second support column group 5.

[0034] In some embodiments, the depth of the second placement groove 25 is equal to the height of the IGBT, so that when the IGBT is placed in the second placement groove 25, the top surface of the IGBT is flush with the top surface of the fixing strip 24, thereby ensuring that the IGBT can be placed stably and without loosening when the cover plate 3 is installed on the flip plate 2, further improving the stability during the welding process.

[0035] In some embodiments, the attraction between the plurality of second magnetic pillars 31 and the plurality of first magnetic pillars 26 is greater than the sum of the weights of the cover plate 3, the inverter plate and the plurality of IGBTs, ensuring that the cover plate 3 and the flip plate 2 can remain tightly fitted even if they are subjected to external interference during the welding process, thus preventing the IGBTs and the inverter plate from shifting.

[0036] In some embodiments, one side of the fixing strip 24 is flush with the inner wall of one side of the first placement groove 23, which can prevent the fixing strip 24 from interfering with the placement of the inverter board in the first placement groove 23, so that the inverter board can be smoothly placed into the first placement groove 23.

[0037] The specific working principle is as follows:

[0038] In actual operation, rotate the flip plate 2 and, supported by the first support column group 4, put it in an idle state. Insert the inverter board into the first placement slot 23, ensuring that it fits tightly with the first placement slot 23. Insert multiple IGBTs into multiple second placement slots 25 respectively, ensuring that they fit tightly with the second placement slots 25, and ensure that the IGBTs are inserted into the inverter board.

[0039] The cover plate 3 is placed on the flip plate 2. Through the magnetic attraction of the first magnetic post 26 and the second magnetic post 31, the cover plate 3 is tightly fixed to the flip plate 2, thereby achieving the positioning and fixing of multiple IGBTs and inverter boards in the flip plate 2.

[0040] Rotate the flip plate 2, and with the support of the second support column group 5, put it in the welding state. Use welding tools to perform the welding operation. After welding is completed, rotate the flip plate 2, and with the support of the first support column group 4, put it in the idle state. Remove the cover plate 3, and then remove the inverter board with multiple IGBTs welded on from the flip plate 2. This completes the welding operation of multiple IGBTs and the inverter board.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary tool for welding IGBTs to inverter boards, characterized in that: Includes the mounting bracket (1); A flip plate (2) is rotatably mounted on the fixed frame (1); Cover plate (3), the cover plate (3) is detachably mounted on the flip plate (2), and an IGBT and an inverter plate are provided between the flip plate (2) and the cover plate (3); The first support column group (4) is located on one side of the fixed frame (1) and is attached to the bottom surface of the flip plate (2); The second support column group (5) is located on the other side of the fixed frame (1) and is attached to the top surface of the flip plate (2).

2. The auxiliary tool for welding IGBTs and inverter boards according to claim 1, characterized in that: The fixing frame (1) includes a fixing plate (11), with the first support column group (4) on one side and the second support column group (5) on the other side. Two fixing blocks (12) are symmetrically arranged in the middle of the fixing plate (11), and a rotatable flip plate (2) is provided between the two fixing blocks (12).

3. The auxiliary tool for welding IGBTs and inverter boards according to claim 2, characterized in that: The flip plate (2) includes a plate body (21), and the two ends of the plate body (21) are respectively axially connected to the two fixing blocks (12); Through groove (22), the through groove (22) penetrates the plate (21); The first placement slot (23) is coaxially disposed on the through slot (22) and is plugged into the inverter board; Two fixing strips (24) are symmetrically arranged on the top of the plate (21), and the two fixing strips (24) are detachably connected to the cover plate (3); Multiple second placement slots (25) are symmetrically arranged on the two fixed strips (24), and the second placement slots (25) are connected to the IGBT.

4. The auxiliary tool for welding IGBTs and inverter boards according to claim 3, characterized in that: The flip plate (2) also includes a plurality of first magnetic posts (26), which are embedded in the fixing strip (24); The cover plate (3) includes a plurality of second magnetic pillars (31), which are symmetrically embedded on both sides of the cover plate (3), and the second magnetic pillars (31) are attracted to the first magnetic pillars (26).

5. The auxiliary tool for welding IGBTs and inverter boards according to claim 3, characterized in that: The distance between the joint between the plate (21) and the fixing block (12) and one side of the plate (21) is between one-fifth and one-third of the width of the plate (21).

6. The IGBT and inverter board welding auxiliary tool according to claim 3, characterized in that: The depth of the second placement slot (25) is equal to the height of the IGBT.

7. The auxiliary tool for welding IGBTs and inverter boards according to claim 4, characterized in that: The attraction between the plurality of second magnetic pillars (31) and the plurality of first magnetic pillars (26) is greater than the sum of the weights of the cover plate (3), the inverter plate and the plurality of IGBTs.

8. The auxiliary tool for welding IGBTs and inverter boards according to claim 3, characterized in that: One side of the fixing strip (24) is flush with the inner wall of one side of the first placement groove (23).

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