Anti-interference silicon carbide diode packaging structure

Abstract

The utility model provides an anti-interference silicon carbide diode packaging structure, which relates to the technical field of diode packaging, and comprises a bottom shell, a top shell is arranged at the top of the bottom shell, a diode chip is arranged between the bottom shell and the top shell, a first round hole and a second round hole are respectively arranged on the surfaces of the bottom shell and the top shell, and the first round hole is communicated with the second round hole. A screw cylinder and a screw rod are embedded into the first round hole and the second round hole respectively, the screw rod is located in the screw cylinder and is in threaded connection with the screw cylinder, a square hole is formed in the top of the top shell, a groove is formed in the inner wall of one side of the square hole, and a cover plate is connected to the interior of the groove through a pin shaft; a mounting groove is formed in the inner wall of the other end of the square hole, and a mounting piece is arranged in the mounting groove. According to the utility model, through mutual cooperation of the cylinder, the disc, the limiting block, the screw rod, the rotating disc and the square groove, an effect of conveniently assembling and disassembling the bottom shell and the top shell can be achieved, so that an effect of conveniently assembling, disassembling and replacing the diode chip can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of diode packaging, and in particular to an anti-interference silicon carbide diode packaging structure. Background Art

[0002] Silicon carbide is a mature wide bandgap semiconductor material. Silicon carbide diodes have the characteristics of high voltage resistance, low loss, and high efficiency. They are widely used in switching power supplies and high-frequency rectifiers. When silicon carbide diodes are used on circuit boards, they need to be packaged before use to improve the efficiency of the diode.

[0003] The existing silicon carbide diode packaging structure usually needs to be fixed by sealing glue during packaging, but it is difficult to disassemble after packaging, and it is not convenient to replace the diode inside the packaging structure, thus greatly reducing the utilization rate of the packaging structure. At the same time, when inspecting the packaged silicon carbide diode, the silicon carbide diode packaging shell needs to be disassembled, which is more troublesome. Utility Model Content

[0004] The utility model mainly provides an interference silicon carbide diode packaging structure which is convenient for disassembly.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-interference silicon carbide diode packaging structure, comprising: a bottom shell, a top shell is provided on the top of the bottom shell, a diode chip is provided between the bottom shell and the top shell, a first circular hole and a second circular hole are respectively provided on the surface of the bottom shell and the top shell, a screw barrel and a screw are respectively embedded in the interior of the first circular hole and the second circular hole, the screw is located inside the screw barrel and is threadedly connected thereto, a square hole is provided on the top of the top shell, a groove is provided on the inner wall of one side of the square hole, a cover plate is connected to the internal pin shaft of the groove, an installation groove is provided on the inner wall of the other end of the square hole, a mounting piece is provided inside the mounting groove, and the mounting piece is fixedly connected to the cover plate.

[0006] Compared with the prior art, the advantages and positive effects of the utility model are:

[0007] 1. In the utility model, the device cooperates with each other through the barrel, the disc, the limit block, the screw, the turntable and the square groove, which can facilitate the installation and removal of the bottom shell and the top shell, thereby facilitating the installation, removal and replacement of the diode chip.

[0008] 2. In the present invention, when the diode chip needs to be inspected, the screws can be taken out from the mounting part, which can open the cover plate, thereby facilitating the inspection of the diode chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1The utility model provides an overall structural stereogram of an anti-interference silicon carbide diode packaging structure;

[0010] Figure 2 This is a bottom view of the overall structure of an anti-interference silicon carbide diode packaging structure proposed by the utility model;

[0011] Figure 3 The utility model provides an overall structure bottom-up cross-sectional view of an anti-interference silicon carbide diode packaging structure;

[0012] Figure 4 A schematic diagram of the bottom shell structure of an anti-interference silicon carbide diode packaging structure is proposed for the utility model;

[0013] Figure 5 A schematic diagram of the top shell structure of an anti-interference silicon carbide diode packaging structure is provided for the utility model;

[0014] Figure 6 The utility model provides a cover structure schematic diagram of an anti-interference silicon carbide diode packaging structure.

[0015] Legend: 1. Bottom shell; 2. Top shell; 3. Diode chip; 4. U-shaped embedding groove; 5. U-shaped embedding plate; 6. L-shaped groove; 7. L-shaped plate; 8. First round hole; 9. Second round hole; 10. Screw barrel; 11. Round disk; 12. Limit block; 13. Screw; 14. Turntable; 15. Square groove; 16. Square hole; 17. Groove; 18. Cover plate; 19. U-shaped sealing gasket; 20. Mounting piece; 21. Mounting groove. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0017] See also Figure 1-Figure 6The utility model provides a technical solution: an anti-interference silicon carbide diode packaging structure, characterized in that it includes: a bottom shell 1, a top shell 2 is arranged on the top of the bottom shell 1, a diode chip 3 is arranged between the bottom shell 1 and the top shell 2, a first circular hole 8 and a second circular hole 9 are respectively opened on the surface of the bottom shell 1 and the top shell 2, a screw barrel 10 and a screw rod 13 are respectively embedded in the first circular hole 8 and the second circular hole 9, the screw 13 is located in the screw barrel 10 and is threadedly connected thereto, a square hole 16 is opened on the top of the top shell 2, and the square hole 16 is A groove 17 is provided on the inner wall of one side, and a cover plate 18 is connected to the internal pin shaft of the groove 17. A mounting groove 21 is provided on the inner wall of the other end of the square hole 16, and a mounting member 20 is provided inside the mounting groove 21. The mounting member 20 is fixedly connected to the cover plate 18. By placing the diode chip 3 between the bottom shell 1 and the top shell 2, the bottom shell 1 and the top shell 2 can be installed by the screw barrel 10 and the screw rod 13. When the diode chip 3 needs to be inspected, the cover plate 18 can be opened to inspect the diode chip 3.

[0018] like Figure 1 and Figure 5 As shown, a U-shaped groove 4 is provided at the bottom and near the edge of the top shell 2, a U-shaped panel 5 is embedded in the U-shaped groove 4, and the bottom of the U-shaped panel 5 is fixedly connected to the top of the bottom shell 1. Through the above arrangement, the bottom shell 1 and the top shell 2 can be positioned, and the sealing effect can also be improved.

[0019] like Figure 4 and Figure 5 As shown, an L-shaped groove 6 is provided at one end of the bottom shell 1 and near the two corners of the top, an L-shaped plate 7 is embedded inside the L-shaped groove 6, and the top of the L-shaped plate 7 is fixedly connected to the bottom of the top shell 2. Through the above arrangement, one end of the top shell 2 can be positioned.

[0020] like Figure 2 As shown, a disc 11 is fixedly connected to the bottom of the screw barrel 10, and a limiting block 12 is symmetrically fixed to the outer arc wall of the disc 11. The disc 11 and the limiting block 12 are both embedded in the bottom of the bottom shell 1. Through the above arrangement, the disc 11 can be limited and the screw barrel 10 can be prevented from rotating.

[0021] like Figure 3 As shown, a turntable 14 is fixedly connected to the top of the screw rod 13, and the turntable 14 is embedded in the top of the top shell 2 and rotatably connected thereto. A square groove 15 is provided on the top of the turntable 14. The above arrangement can facilitate the rotation of the screw rod 13.

[0022] like Figure 6 As shown, a U-shaped sealing gasket 19 is fixedly connected to the bottom of the cover plate 18 and close to the edge. Through the above arrangement, the cover plate 18 and the top shell 2 can be sealed.

[0023] The use method and working principle of the device are as follows: by placing the diode chip 3 between the bottom shell 1 and the top shell 2, the U-shaped panel 5 slides inside the U-shaped embedding groove 4, and when the U-shaped panel 5 and the U-shaped embedding groove 4 are combined, the L-shaped plate 7 will be embedded in the L-shaped groove 6, and then the screw barrel 10 and the screw rod 13 are respectively embedded in the first circular hole 8 and the second circular hole 9, and the limit block 12 is embedded in the bottom of the bottom shell 1, and then the screw rod 13 is driven to embed in the screw barrel 10 by rotating the turntable 14, which can facilitate the installation of the bottom shell 1 and the top shell 2. When the diode chip 3 needs to be inspected, the screw can be taken out from the mounting member 20, and the cover plate 18 can be opened, so that the diode chip 3 can be inspected conveniently.

[0024] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An anti-interference silicon carbide diode packaging structure, characterized in that: include: A bottom shell (1), a top shell (2) is arranged on the top of the bottom shell (1), a diode chip (3) is arranged between the bottom shell (1) and the top shell (2), a first circular hole (8) and a second circular hole (9) are respectively opened on the surface of the bottom shell (1) and the top shell (2), a screw barrel (10) and a screw rod (13) are respectively embedded in the inside of the first circular hole (8) and the second circular hole (9), the screw rod (13) is located in the inside of the screw barrel (10) and is threadedly connected thereto, a square hole (16) is opened on the top of the top shell (2), a groove (17) is opened on the inner wall of one side of the square hole (16), a cover plate (18) is connected to the inner pin of the groove (17), a mounting groove (21) is opened on the inner wall of the other end of the square hole (16), a mounting member (20) is arranged in the inside of the mounting groove (21), and the mounting member (20) is fixedly connected to the cover plate (18).

2. The anti-interference silicon carbide diode packaging structure according to claim 1, characterized in that: A U-shaped embedding groove (4) is provided at the bottom and near the edge of the top shell (2), a U-shaped insert plate (5) is embedded in the U-shaped embedding groove (4), and the bottom of the U-shaped insert plate (5) is fixedly connected to the top of the bottom shell (1).

3. The anti-interference silicon carbide diode packaging structure according to claim 1, characterized in that: An L-shaped groove (6) is provided at one end of the bottom shell (1) and close to the two corners of the top, an L-shaped plate (7) is embedded inside the L-shaped groove (6), and the top of the L-shaped plate (7) is fixedly connected to the bottom of the top shell (2).

4. The anti-interference silicon carbide diode packaging structure according to claim 1, characterized in that: The bottom of the screw barrel (10) is fixedly connected to a disc (11), and a limiting block (12) is symmetrically fixed to the outer arc wall of the disc (11), and the disc (11) and the limiting block (12) are both embedded in the bottom of the bottom shell (1).

5. The anti-interference silicon carbide diode packaging structure according to claim 1, characterized in that: A rotating disk (14) is fixedly connected to the top of the screw rod (13); the rotating disk (14) is embedded in the top of the top shell (2) and is rotatably connected thereto; a square groove (15) is provided on the top of the rotating disk (14).

6. The anti-interference silicon carbide diode packaging structure according to claim 1, characterized in that: A U-shaped sealing gasket (19) is fixedly connected to the bottom of the cover plate (18) and close to the edge.

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