Driving chip of silicon carbide mos tube

Abstract

The utility model relates to the technical field of chips, and discloses a driving chip of a silicon carbide mos tube, which comprises a circuit board and a chip body, the chip body is arranged on the front surface of the circuit board, the four corners of the chip body are respectively provided with a positioning assembly, and the four corners of the front surface of the circuit board are respectively and fixedly provided with a mounting hole. According to the driving chip of the silicon carbide mos tube, the L-shaped blocks sleeve the four fixing columns of the circuit board, the protrusions are arranged on the surfaces of the fixing columns, the surfaces of the fixing columns are matched with the interiors of the through holes of the L-shaped blocks, so that the L-shaped blocks on the surfaces of the fixing columns cannot rotate, then screws are screwed into the front ends of the fixing columns, and the edges of the back faces of the screws abut against the front faces of the L-shaped blocks; the L-shaped block on the fixing column is fixedly installed, when the chip body is placed, the L-shaped block can limit one corner of the chip body, the chip body is prevented from deviating during installation, the outer side of the L-shaped block is provided with an arc surface, the L-shaped block can adapt to positioning and placing of a fillet chip, and the installation applicability of the chip is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of chips, in particular to a driving chip of a silicon carbide MOS tube. Background Art

[0002] MOS is the abbreviation of MOSFET, MOSFET metal-oxide semiconductor field effect transistor, also known as metal-oxide semiconductor field effect transistor. Generally, it is a metal (metal)-oxide (oxide)-semiconductor (semiconductor) field effect transistor, or metal-insulator (insulator)-semiconductor MOS tube driver, which requires the configuration of corresponding chips.

[0003] At present, when the chip body is placed on the circuit board, there is no limit mechanism on the circuit board for the edge of the chip body, and the chip body is easily offset during installation, which is not convenient for stable installation of the chip. Therefore, it is necessary to design a driver chip with good positioning effect and silicon carbide MOS tube. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the utility model provides a driver chip for a silicon carbide MOS tube, which has the advantages of good positioning effect and easy operation. It solves the problem that when the chip body is currently placed on a circuit board, there is no limiting mechanism for the edge of the chip body on the circuit board, the chip body is prone to offset during installation, and it is not convenient for the chip to be stably installed.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a driving chip for a silicon carbide MOS tube, comprising a circuit board and a chip body, the chip body being arranged on the front side of the circuit board, positioning components being arranged at the four corners of the chip body, and mounting holes being fixedly arranged at the four corners of the front side of the circuit board.

[0008] The positioning component includes a fixing column, a rear end of which is fixedly connected to the front side of the circuit board, an L-shaped block movably sleeved on the side surface of the fixing column, a screw is installed on the front end of the fixing column, the back side of the screw is abutted against the front side of the L-shaped block, a corner of the chip body is adapted to the inner side of the L-shaped block, and an arc surface is provided on the outer side of the L-shaped block.

[0009] Preferably, a protrusion is fixedly provided on the side surface of the fixing column, a through hole is opened on the front side of the L-shaped block, the side surface of the fixing column is adapted to the inside of the through hole, and before the chip body is placed, the L-shaped block is inserted into the fixing column of the circuit board, and the L-shaped block on the surface of the fixing column cannot rotate, thereby facilitating the stable placement of the chip on the circuit board.

[0010] Preferably, a threaded hole is provided at the front end of the fixing column, and the rear end of the screw is connected to the internal thread of the threaded hole. After the L-shaped block is inserted into the surface of the fixing column, the screw is screwed into the front end of the fixing column so that the back edge of the screw abuts against the front side of the L-shaped block, so that the L-shaped block on the fixing column is installed and fixed, thereby facilitating the positioning operation of the chip on the circuit board.

[0011] Compared with the prior art, the utility model provides a driving chip for a silicon carbide MOS tube, which has the following beneficial effects:

[0012] The driving chip of the silicon carbide MOS tube is provided with a fixing column, an L-shaped block and a screw, and the L-shaped block is inserted into the four fixing columns of the circuit board. Since the surface of the fixing column is provided with a protrusion, the surface of the fixing column cooperates with the through hole of the L-shaped block, so that the L-shaped block on the surface of the fixing column cannot rotate, and then the screw is screwed into the front end of the fixing column so that the back edge of the screw abuts against the front side of the L-shaped block, so that the L-shaped block on the fixing column is installed and fixed. When the chip body is placed, the L-shaped block can limit one corner of the chip body to prevent the chip body from shifting when it is installed, and the outer side of the L-shaped block is provided with an arc surface, which can adapt to the positioning and placement of rounded chips, thereby enhancing the installation applicability of the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the driver chip of the silicon carbide MOS tube of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the positioning component of the utility model;

[0015] Figure 3 This is a schematic diagram of the L-shaped block structure of the utility model.

[0016] Among them: 1. Circuit board; 2. Chip body; 3. Mounting hole; 4. Fixing column; 5. L-shaped block; 6. Screw; 7. Arc surface; 8. Protrusion; 9. Through hole; 10. Threaded hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 A driving chip for a silicon carbide MOS tube comprises a circuit board 1 and a chip body 2. The chip body 2 is arranged on the front of the circuit board 1. Positioning components are arranged at the four corners of the chip body 2. The positioning components comprise a fixing column 4. The rear end of the fixing column 4 is fixedly connected to the front of the circuit board 1. An L-shaped block 5 is movably sleeved on the side surface of the fixing column 4. A protrusion 8 is fixedly arranged on the side surface of the fixing column 4. A through hole 9 is provided on the front of the L-shaped block 5. The side surface of the fixing column 4 is adapted to the inside of the through hole 9. A screw 6 is installed on the front end of the fixing column 4. A threaded hole 10 is provided on the front end of the fixing column 4. The rear end of the screw 6 is threadedly connected to the inside of the threaded hole 10. The back of the screw 6 is abutted against the front of the L-shaped block 5. One corner of the chip body 2 is adapted to the inner side of the L-shaped block 5. The outer side of the L-shaped block 5 is adapted to the inner side of the L-shaped block 5. A curved surface 7 is arranged on the side, and a fixing column 4, an L-shaped block 5 and a screw 6 are arranged. The L-shaped block 5 is inserted into the four fixing columns 4 of the circuit board 1. Since a protrusion 8 is arranged on the surface of the fixing column 4, the surface of the fixing column 4 cooperates with the through hole 9 of the L-shaped block 5, so that the L-shaped block 5 on the surface of the fixing column 4 cannot rotate, and then the screw 6 is screwed into the front end of the fixing column 4, so that the back edge of the screw 6 abuts against the front side of the L-shaped block 5, so that the L-shaped block 5 on the fixing column 4 is installed and fixed. When the chip body 2 is placed, the L-shaped block 5 can limit one corner of it to prevent the chip body 2 from shifting during installation, and a curved surface 7 is arranged on the outer side of the L-shaped block 5, and the placement orientation of the L-shaped block 5 is adjustable to adapt to the positioning and placement of rounded chip, thereby enhancing the installation applicability of the chip, and the four corners of the front side of the circuit board 1 are fixedly provided with mounting holes 3.

[0019] When in use, insert the L-shaped block 5 on the four fixing columns 4 of the circuit board 1. Since the surface of the fixing column 4 is provided with a protrusion 8, the surface of the fixing column 4 cooperates with the through hole 9 of the L-shaped block 5, so that the L-shaped block 5 on the surface of the fixing column 4 cannot rotate. Then screw the screw 6 into the front end of the fixing column 4, so that the back edge of the screw 6 abuts against the front of the L-shaped block 5, so that the L-shaped block 5 on the fixing column 4 is installed and fixed. When the chip body 2 is placed, the L-shaped block 5 can limit one corner of it to prevent the chip body 2 from shifting when it is installed. For the driver chip of the silicon carbide MOS tube, a limiting component for placing the chip body 2 is provided on the circuit board 1 to prevent the chip body 2 from shifting during installation, and an arc surface 7 is provided on the outer side of the L-shaped block 5. The placement orientation of the L-shaped block 5 is adjustable to adapt to the positioning and placement of rounded chips, which enhances the placement applicability of the chip and facilitates the stable installation of the chip.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A driving chip for a silicon carbide MOS tube, comprising a circuit board (1) and a chip body (2), characterized in that: The chip body (2) is arranged on the front side of the circuit board (1), positioning components are arranged at the four corners of the chip body (2), and mounting holes (3) are fixedly arranged at the four corners of the front side of the circuit board (1); The positioning assembly comprises a fixing column (4), the rear end of the fixing column (4) is fixedly connected to the front side of the circuit board (1), the side surface of the fixing column (4) is movably sleeved with an L-shaped block (5), the front end of the fixing column (4) is installed with a screw (6), the back side of the screw (6) is in contact with the front side of the L-shaped block (5), one corner of the chip body (2) is matched with the inner side of the L-shaped block (5), and the outer side of the L-shaped block (5) is provided with an arc surface (7).

2. A driver chip for a silicon carbide MOS tube according to claim 1, characterized in that: A protrusion (8) is fixedly provided on the side surface of the fixing column (4), a through hole (9) is opened on the front side of the L-shaped block (5), and the side surface of the fixing column (4) is adapted to the interior of the through hole (9).

3. The driving chip of a silicon carbide MOS tube according to claim 1, characterized in that: A threaded hole (10) is provided at the front end of the fixing column (4), and the rear end of the screw (6) is connected to the inner thread of the threaded hole (10).

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