Heat dissipation type IGBT medium-high frequency induction furnace busbar connecting assembly

Abstract

The utility model belongs to the field of IGBT (Insulated Gate Bipolar Translator) induction furnaces, and particularly relates to a heat dissipation type IGBT medium-high frequency induction furnace busbar connecting assembly which is assembled on a furnace cabinet, the furnace cabinet is provided with a busbar main body, the busbar main body is provided with a mounting groove, a wiring port and an operation cavity, the operation cavity is provided with a traction cavity, and the traction cavity is provided with a power supply. The operation cavity is provided with a fixed block, the fixed block is provided with a guide rod, the guide rod is provided with a movable block, the movable block is provided with an extending block, the extending block is provided with a guide block, the guide block is assembled with the traction cavity, the guide block is provided with a check block, and the check block is assembled with the movable opening. According to the heat dissipation type IGBT medium-high frequency induction furnace busbar connecting assembly, through cooperation of the stop blocks and the guide rods, the problems that vibration is generated during operation of existing equipment, so that bolts are prone to loosening on the busbar, the stability of a connecting wire on an interface becomes poor, and overall operation of IGBT type medium-high frequency induction heating electric furnace equipment is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of IGBT induction furnaces, specifically a heat-dissipating IGBT mid-to-high frequency induction furnace busbar connection assembly. Background Technology

[0002] IGBT-type medium-high frequency induction heating furnaces are induction heating devices that use insulated-gate bipolar transistors (IGBTs) as the main power devices. IGBTs are composite power devices that combine the advantages of bipolar power transistors and power MOSFETs, featuring voltage-type control, high input impedance, low drive power, simple control circuitry, low switching losses, fast switching speed, and high operating frequency. The working principle of IGBT-type medium-high frequency induction heating furnaces is to generate eddy currents inside the workpiece through electromagnetic induction, thereby heating the workpiece. This heating method has advantages such as fast heating speed, less oxidation and decarburization, and savings in material and forging die costs. It is mainly used for melting ordinary carbon steel, alloy steel, cast steel, and non-ferrous metals, as well as forging, through-heating, and casting processes.

[0003] To improve production efficiency, existing manufacturers install multiple IGBT-type medium-high frequency induction heating furnaces in cabinets, distributing current to each furnace via busbars within the cabinet. However, the existing IGBT medium-high frequency induction furnace busbars still have the following problems during use:

[0004] Existing IGBT-type medium-high frequency induction heating furnace equipment connects to the busbar interface via connecting wires and is secured with bolts. Due to vibrations generated during equipment operation, the bolts on the busbar are prone to loosening, resulting in decreased stability of the connecting wires at the interface and affecting the overall operation of the IGBT-type medium-high frequency induction heating furnace equipment. Therefore, it is necessary to develop a heat-dissipating IGBT medium-high frequency induction furnace busbar connection assembly for use in the existing IGBT induction furnace field. Utility Model Content

[0005] To address the shortcomings of existing technologies, which cause vibrations during operation of current equipment, making it easy for bolts on the busbar to loosen and deteriorate the stability of the connecting wires at the interface, thus affecting the overall operation of IGBT-type medium-high frequency induction heating furnace equipment, this utility model proposes a heat dissipation type IGBT medium-high frequency induction furnace busbar connection component.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a heat dissipation type IGBT medium and high frequency induction furnace busbar connection assembly, which is assembled on the furnace cabinet. The inner wall of the furnace cabinet is equipped with a busbar body, a number of mounting slots are provided on the busbar body, a number of wiring ports are provided at the bottom of the busbar body, and an operating cavity is provided inside the busbar body.

[0007] The operating chamber is located on one side of the mounting groove. Traction chambers are symmetrically arranged on the operating chamber. The traction chambers are located on both sides of the mounting groove. The inner wall of the mounting groove is provided with movable openings that communicate with the traction chambers. Two sets of fixing blocks are fixedly assembled on the operating chamber. Each set of fixing blocks consists of two blocks. Guide rods are symmetrically fixed between the two fixing blocks in each set.

[0008] Both guide rods are movably equipped with movable blocks, and extension blocks are fixedly equipped on the end faces of the movable blocks. The extension blocks are located on one side of the fixed blocks, and a guide block is fixedly equipped on one end of each extension block. The guide blocks are movably assembled with the traction cavity, and a stop block is fixedly equipped on one end of each guide block. The stop block is movably assembled with the movable opening.

[0009] Preferably, each of the movable blocks is fixedly fitted with a mounting plate on its top, and multiple guide rods are movably fitted on the busbar body. The guide rods are located on one side of the mounting groove, and each of the guide rods is fixedly fitted with an adjusting block at its bottom, which is located in the operating cavity.

[0010] Preferably, each guide rod is fixedly fitted with a pressing block on its top, the pressing block being located on one side of the busbar body. The two symmetrical sides of the adjusting block are fixedly fitted with fixing plates, and each fixing plate is movably fitted with an adjusting rod. The other end of the adjusting rod is movably fitted with the mounting plate.

[0011] Preferably, each guide rod is equipped with a telescopic spring, and the two ends of the telescopic spring are fixedly assembled to the top surface of the adjusting block and the operating cavity, respectively.

[0012] Preferably, the mounting groove is threaded with a fastening bolt, which is located inside the stop block.

[0013] Preferably, the busbar body is fixedly equipped with conductive wires, the busbar body is provided with heat dissipation holes, and the wiring port is connected to a connecting wire.

[0014] Preferably, mounting plates are fixedly mounted on both symmetrical sides of the busbar body, and the mounting plates are fixedly mounted to the inner wall of the furnace cabinet. Multiple IGBT medium-high frequency induction furnace bodies are fixedly mounted on the inner wall of the furnace cabinet.

[0015] Preferably, each of the IGBT high-frequency induction furnace bodies is fixedly equipped with a power distribution box, and the power distribution box is fixedly assembled with the connecting wires.

[0016] The advantages of this utility model are:

[0017] In this invention, one end of the connecting wire is inserted into the wiring port. By pressing the pressing block, the guide rod moves on the busbar body. The guide rod drives the adjusting block to move, and the telescopic spring is stretched. Under the action of the adjusting rod, the movable blocks move in opposite directions on the guide rod. The movable blocks drive the guide block on the extension block to move. The guide block drives the stop block to move from the mounting groove to the traction cavity. The connecting wires are inserted into the wiring ports of the busbar body. Fastening bolts are installed on the mounting groove so that one end of the fastening bolt is fixed to the wiring port in the wiring port.

[0018] At this point, the pressing block is released, and under the elastic force of the telescopic spring, the stop block moves on the movable opening. The stop block fits against one end of the fastening bolt, restricting the fastening bolt from rotating and moving on the busbar body, thus improving the installation stability of the fastening bolt on the busbar body. Current enters the busbar body from the conductive wire and is distributed through various connecting wires, energizing the distribution box. The distribution box controls the operation of the IGBT high-frequency induction furnace body, facilitating the melting of ordinary carbon steel, alloy steel, cast steel, and non-ferrous metals, as well as forging, through-heating, and casting processes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the heat-dissipating IGBT high-frequency induction furnace cabinet of this utility model;

[0021] Figure 2 This is a schematic diagram of the assembly structure of the heat-dissipating IGBT high-frequency induction furnace and busbar connection assembly of this utility model.

[0022] Figure 3 This is a cross-sectional view of the busbar connection assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model.

[0024] In the picture:

[0025] 10. Furnace cabinet; 11. Distribution box; 12. IGBT medium-high frequency induction furnace body; 13. Busbar body;

[0026] 20. Connecting wire; 21. Assembly plate; 22. Heat dissipation holes; 23. Conductive wire;

[0027] 30. Fastening bolts; 31. Mounting slot; 32. Wiring port; 33. Operating cavity;

[0028] 40. Traction chamber; 41. Movable opening; 42. Stop block; 43. Fixed block;

[0029] 50. Guide rod; 51. Pressing block; 52. Guide rod; 53. Movable block;

[0030] 60. Extension block; 61. Guide block; 62. Mounting plate; 63. Adjustment block;

[0031] 70. Fixing plate; 71. Adjusting rod; 72. Telescopic spring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The following is in conjunction with the appendix Figure 1 —4 provides further detailed description of this application.

[0034] This application discloses a heat-dissipating IGBT busbar connection assembly for a high-frequency induction furnace. (Refer to...) Figure 2 - Figure 4 A heat dissipation type IGBT medium and high frequency induction furnace busbar connection assembly is assembled on the furnace cabinet 10. The inner wall of the furnace cabinet 10 is equipped with a busbar body 13. The busbar body 13 is provided with multiple mounting slots 31. The bottom of the busbar body 13 is provided with multiple wiring ports 32. The inside of the busbar body 13 is provided with an operating cavity 33.

[0035] The operating cavity 33 is located on one side of the mounting groove 31. The operating cavity 33 is symmetrically provided with traction chambers 40. The traction chambers 40 are located on both sides of the mounting groove 31. The inner wall of the mounting groove 31 is provided with movable openings 41 that communicate with the traction chambers 40. The operating cavity 33 is fixedly equipped with two sets of fixing blocks 43. Each set of fixing blocks 43 has two blocks. Guide rods 52 are symmetrically fixed between the two fixing blocks 43 in each set.

[0036] Both guide rods 52 are movably equipped with movable blocks 53. The end face of each movable block 53 is fixedly equipped with an extension block 60. The extension block 60 is located on one side of the fixed block 43. One end of each extension block 60 is fixedly equipped with a guide block 61 that moves in the traction cavity 40. One end of each guide block 61 is fixedly equipped with a stop block 42 that moves in the movable opening 41. The top of each movable block 53 is fixedly equipped with a mounting plate 62. Multiple guide rods 50 are movably equipped on the busbar body 13. The guide rods 50 are located on one side of the mounting groove 31. The bottom of each guide rod 50 is fixedly equipped with an adjusting block 63.

[0037] The adjusting block 63 is located in the operating cavity 33. The top of each guide rod 50 is fixedly equipped with a pressing block 51, which is located on one side of the busbar body 13. The two symmetrical sides of the adjusting block 63 are fixedly equipped with fixing plates 70. The fixing plates 70 are movably equipped with adjusting rods 71. The other end of the adjusting rods 71 ​​is movably assembled with the mounting plate 62. The top surface of the adjusting block 63 and the operating cavity 33 is fixedly equipped with a telescopic spring 72. The guide rods 50 are all assembled inside the telescopic spring 72. The mounting groove 31 is threaded with fastening bolts 30, which are located inside the stop block 42.

[0038] Conductive wires 23 are fixedly mounted on the busbar body 13. Heat dissipation holes 22 are provided on the busbar body 13. Connecting wires 20 are inserted into the wiring port 32. One end of the connecting wire 20 is inserted into the wiring port 32, and the pressing block 51 is pressed, so that the guide rod 50 moves on the busbar body 13. The guide rod 50 drives the adjusting block 63 to move, and the telescopic spring 72 is stretched. Under the action of the adjusting rod 71, the movable block 53 moves in the opposite direction on the guide rod 52. The movable block 53 drives the guide block 61 on the extension block 60 to move. The guide block 61 drives the stop block 42 to move from the mounting groove 31 to the traction cavity 40. The connecting wires 20 are inserted into the wiring port 32 of the busbar body 13.

[0039] Install the fastening bolt 30 on the mounting groove 31 so that one end of the fastening bolt 30 is fixed to the wiring port 32 in the wiring port 32. At this time, release the pressing block 51. Under the elastic force of the telescopic spring 72, the stop block 42 moves on the movable opening 41. The stop block 42 fits against one end of the fastening bolt 30, restricting the fastening bolt 30 from rotating and moving on the busbar body 13, thereby improving the installation stability of the fastening bolt 30 on the busbar body 13.

[0040] Reference Figure 1 and Figure 2Assembly plates 21 are fixedly mounted on both symmetrical sides of the busbar body 13. The assembly plates 21 are fixedly mounted to the inner wall of the furnace cabinet 10. Multiple IGBT medium-high frequency induction furnace bodies 12 are fixedly mounted on the inner wall of the furnace cabinet 10. Each IGBT medium-high frequency induction furnace body 12 is fixedly mounted with a distribution box 11. The distribution box 11 is fixedly mounted to the connecting line 20. Current enters the busbar body 13 from the conductive line 23 and is distributed through each connecting line 20, so that the distribution box 11 is energized. The distribution box 11 controls the operation of the IGBT medium-high frequency induction furnace body 12, which facilitates the melting of ordinary carbon steel, alloy steel, cast steel and non-ferrous metals, as well as forging, through heating and casting processes.

[0041] Working principle: Connect one end of the connecting wire 20 to the wiring port 32, press the pressing block 51, so that the guide rod 50 moves on the busbar body 13. The guide rod 50 drives the adjusting block 63 to move, and the telescopic spring 72 is stretched. Under the action of the adjusting rod 71, the movable block 53 moves in the opposite direction on the guide rod 52. The movable block 53 drives the guide block 61 on the extension block 60 to move. The guide block 61 drives the stop block 42 from the mounting groove 31 to the traction cavity 40, and the connecting wire 20 is inserted into the wiring port 32 of the busbar body 13.

[0042] Install fastening bolts 30 on the mounting groove 31 so that one end of the fastening bolts 30 is fixed to the wiring port 32 in the wiring port 32. At this time, release the pressing block 51. Under the elastic force of the telescopic spring 72, the stop block 42 moves on the movable opening 41. The stop block 42 fits against one end of the fastening bolts 30, restricting the fastening bolts 30 from rotating and moving on the busbar body 13, thereby improving the installation stability of the fastening bolts 30 on the busbar body 13.

[0043] Current enters the busbar body 13 from the conductive line 23, and is distributed through the various connecting lines 20 to power the distribution box 11. The distribution box 11 controls the operation of the IGBT high-frequency induction furnace body 12, which facilitates the melting of ordinary carbon steel, alloy steel, cast steel and non-ferrous metals, as well as forging, through heating and casting processes.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A heat-dissipating IGBT mid-to-high frequency induction furnace busbar connection assembly, assembled on the furnace cabinet (10), characterized in that: The inner wall of the furnace cabinet (10) is equipped with a busbar body (13), the busbar body (13) is provided with multiple mounting slots (31), the bottom of the busbar body (13) is provided with multiple wiring ports (32), and the inside of the busbar body (13) is provided with an operating cavity (33). The operating chamber (33) is located on one side of the mounting groove (31). The operating chamber (33) is symmetrically provided with traction chambers (40). The traction chambers (40) are located on both sides of the mounting groove (31). The inner wall of the mounting groove (31) is provided with movable openings (41). The movable openings (41) are connected to the traction chambers (40). The operating chamber (33) is fixedly equipped with two sets of fixing blocks (43). Each set of fixing blocks (43) has two blocks. Each set of two fixing blocks (43) is symmetrically fixedly equipped with guide rods (52) between the two fixing blocks (43). Both guide rods (52) are movably fitted with movable blocks (53), and extension blocks (60) are fixedly fitted on the end face of each movable block (53). The extension blocks (60) are located on one side of the fixed block (43). One end of each extension block (60) is fixedly fitted with a guide block (61). The guide block (61) is movably fitted with the traction cavity (40). One end of each guide block (61) is fixedly fitted with a stop block (42). The stop block (42) is movably fitted with the movable opening (41).

2. The heat-dissipating IGBT high-frequency induction furnace busbar connection assembly according to claim 1, characterized in that: The top of each movable block (53) is fixedly fitted with an installation plate (62), and multiple guide rods (50) are movably fitted on the busbar body (13). The guide rods (50) are located on one side of the installation groove (31), and the bottom of each guide rod (50) is fixedly fitted with an adjustment block (63). The adjustment block (63) is located in the operating cavity (33).

3. The heat-dissipating IGBT high-frequency induction furnace busbar connection assembly according to claim 2, characterized in that: Each guide rod (50) has a pressing block (51) fixedly mounted on its top. The pressing block (51) is located on one side of the busbar body (13). The two symmetrical sides of the adjusting block (63) are fixedly mounted with fixing plates (70). Each fixing plate (70) is movably mounted with an adjusting rod (71). The other end of the adjusting rod (71) is movably mounted with the mounting plate (62).

4. The heat-dissipating IGBT high-frequency induction furnace busbar connection assembly according to claim 3, characterized in that: Each guide rod (50) is equipped with a telescopic spring (72), and the two ends of the telescopic spring (72) are fixedly assembled with the top surface of the adjusting block (63) and the operating cavity (33), respectively.

5. The heat-dissipating IGBT high-frequency induction furnace busbar connection assembly according to claim 1, characterized in that: The mounting groove (31) is threaded with a fastening bolt (30), which is located inside the stop block (42).

6. The heat-dissipating IGBT high-frequency induction furnace busbar connection assembly according to claim 1, characterized in that: Conductive wires (23) are fixedly mounted on the main body (13) of the busbar, heat dissipation holes (22) are provided on the main body (13), and connecting wires (20) are plugged into the wiring port (32).

7. The heat-dissipating IGBT high-frequency induction furnace busbar connection assembly according to claim 6, characterized in that: Assembly plates (21) are fixedly mounted on both symmetrical sides of the busbar body (13). The assembly plates (21) are fixedly mounted to the inner wall of the furnace cabinet (10). Multiple IGBT medium and high frequency induction furnace bodies (12) are fixedly mounted on the inner wall of the furnace cabinet (10).

8. The heat-dissipating IGBT high-frequency induction furnace busbar connection assembly according to claim 7, characterized in that: Each of the IGBT high-frequency induction furnace bodies (12) is fixedly equipped with a power distribution box (11), and the power distribution box (11) is fixedly assembled with the connecting line (20).

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