An integrated gate component dedicated to the packaging of thyristor modules

Abstract

The present invention discloses a dedicated integrated gate component for thyristor module packaging, which includes a copper bottom plate and a pressing plate. Two groups of screw holes are provided at the upper end of the copper bottom plate. Through holes are provided at the chamfer of the pressing plate. A screw rod passes through the interior of the through hole. A hexagonal hole is provided at the upper end of the screw rod to facilitate the disassembly of the screw rod. The lower end of the screw rod passes through the through hole and is threadedly connected to the screw hole. At the upper end of the copper bottom plate, negative film components are respectively provided on the inner sides of the two groups of screw holes. The negative film component is composed of an aluminum sheet and aluminum nitride. The aluminum sheet is provided at the lower end of the aluminum nitride, and the aluminum sheet and the aluminum nitride are overlapped. A copper sheet component is provided at the upper end of the negative film component. By providing a guide sleeve, a spring, a pressing plate and a hole, the spring is provided inside the guide sleeve, and the top end of the spring extends out through the hole, so that wire can be led from the top, the packaging is more convenient, the cost is lower, and the operation is more convenient, which is conducive to the establishment of an automated packaging production line.

Description

Technical Field

[0001] The present invention relates to the field of thyristor module packaging, and more specifically, to a dedicated integrated gate component for thyristor module packaging. Background Art

[0002] Integrated gate commutated thyristor is a high-efficiency and reliable power semiconductor device, which is developed from gate turn-off thyristor. When it is turned on, it is a gate turn-off thyristor, and when it is turned off, it is a transistor, combining the characteristics of fast switching speed, low switching loss of the transistor and low conduction loss, high blocking voltage and large output current of the thyristor. Therefore, it integrates the high-speed switching characteristics of the insulated gate bipolar transistor and the high blocking voltage and low conduction loss characteristics of the GTO.

[0003] At present, the packaging of the gate component is relatively cumbersome. Leading wires from the bottom requires manual operation, which is difficult to operate and is not conducive to the establishment of an automatic packaging production line. Based on some pain points brought by the current packaging of the gate component, such as inconvenient operation and not conducive to automatic packaging, etc., a gate component that is convenient for packaging, has a lower cost and is more flexible to operate is designed. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a dedicated integrated gate component for thyristor module packaging. By setting a guide sleeve, a spring, a pressing plate and a hole, the spring is arranged inside the guide sleeve, and the top of the spring extends out through the hole, so that leading wires can be carried out from the top, the packaging is more convenient, the cost is lower, the operation is more convenient, and it is conducive to the establishment of an automatic packaging production line.

[0006] Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A dedicated integrated gate component for thyristor module packaging, comprising a copper base plate and a pressing plate. Two groups of screw holes are provided at the upper end of the copper base plate. Through holes are provided at the chamfered corners of the pressing plate. A screw rod passes through the interior of the through holes. A hexagonal hole is provided at the upper end of the screw rod for easy disassembly of the screw rod. The lower end of the screw rod passes through the through holes and is threadedly connected to the screw holes. On the upper end of the copper base plate, bottom plate assemblies are respectively provided inside the two groups of screw holes. The bottom plate assembly is composed of an aluminum sheet and aluminum nitride. The aluminum sheet is provided at the lower end of the aluminum nitride, and the aluminum sheet and aluminum nitride are overlapped. A copper sheet assembly is provided at the upper end of the bottom plate assembly. The copper sheet assembly is composed of a perforated copper sheet, a non-perforated copper sheet and a chip. The perforated copper sheet, the non-perforated copper sheet and the chip are overlapped in sequence. A guide sleeve is provided at the upper end of the copper sheet assembly. A pressing block is sleeved on the side wall of the upper end of the guide sleeve. A spring is provided inside the guide sleeve. A hole is provided at the upper end of the pressing plate. The upper end of the spring passes through the hole. A common electrode plate is provided between the copper sheet assembly and the bottom plate assembly.

[0009] Further, each group of the screw holes has four, and the four screw holes are arranged in a rectangle.

[0010] Further, the pressing plate is provided at the upper end of the screw rod. A washer is sleeved on the outside of the screw rod, and the washer is in fit connection with the pressing plate.

[0011] Further, a protective ring is sleeved on the outside of the copper sheet assembly.

[0012] Further, the bottom plate assembly is surrounded by the screw holes, and the common electrode plate passes through the bottom plate assembly and the copper sheet assembly arranged inside the two groups of screw holes.

[0013] Further, a clamping block is provided on the side wall of the guide sleeve, a clamping groove is provided at the upper end of the pressing block, and the clamping block is in clamping connection with the clamping groove. The guide sleeve is clamped with the pressing block through the clamping block and the clamping groove.

[0014] Beneficial Effects

[0015] Compared with the prior art, the advantages of the present invention are as follows:

[0016] In this solution, by providing a guide sleeve, a spring, a pressing plate and a hole, the spring is arranged inside the guide sleeve, and the top end of the spring extends out through the hole, so that wiring can be carried out from the top, the packaging is more convenient, the cost is lower, the operation is more convenient, and it is beneficial to the establishment of an automated packaging production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention;

[0018] Figure 2 is an exploded view of the present invention;

[0019] Figure 3 is a schematic structural diagram of the pressing block of the present invention;

[0020] Figure 4 This is the three-dimensional view of the guide sleeve of the present invention.

[0021] Description of the reference numerals in the figure:

[0022] 1. Copper base plate; 2. Pressure plate; 3. Screw hole; 4. Through hole; 5. Screw rod; 6. Negative film assembly; 7. Copper sheet assembly; 8. Guide sleeve; 9. Pressure block; 10. Spring; 11. Hole; 12. Common electrode plate; 13. Washer; 14. Protective ring; 15. Clamping block; 16. Card slot. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] Embodiment:

[0027] Please refer to Figures 1-4, A dedicated integrated gate component for the encapsulation of a thyristor module, including a copper base plate 1 and a pressing plate 2. Two groups of screw holes 3 are opened at the upper end of the copper base plate 1. Through holes 4 are opened at the chamfer of the pressing plate 2. A screw rod 5 passes through the interior of the through hole 4. The upper end of the screw rod 5 is provided with a hexagonal hole, which facilitates the disassembly of the screw rod 5. The lower end of the screw rod 5 passes through the through hole 4 and is threadedly connected to the screw hole 3. On the upper end of the copper base plate 1, negative film components 6 are respectively arranged inside the two groups of screw holes 3. The negative film component 6 is composed of an aluminum sheet and aluminum nitride. The aluminum sheet is arranged at the lower end of the aluminum nitride, and the aluminum sheet and aluminum nitride are overlapped. A copper sheet component 7 is arranged at the upper end of the negative film component 6. The copper sheet component 7 is composed of a perforated copper sheet, a non-perforated copper sheet and a chip, and the perforated copper sheet, the non-perforated copper sheet and the chip are overlapped in sequence. A guide sleeve 8 is arranged at the upper end of the copper sheet component 7. A clamping block 15 is arranged on the side wall of the guide sleeve 8. A clamping groove 16 is arranged at the upper end of the pressing block 9. The clamping block 15 is snap-connected with the clamping groove 16. The guide sleeve 8 is snap-connected with the pressing block 9 through the clamping block 15 and the clamping groove 16. The use of the snap connection between the clamping block 15 and the clamping groove 16 facilitates the installation of the guide sleeve 8 inside the pressing block 9. The upper end side wall of the guide sleeve 8 is sleeved with a pressing block 9. A spring 10 is arranged inside the guide sleeve 8. A hole 11 is opened at the upper end of the pressing plate 2. The upper end of the spring 10 passes through the hole 11. A common electrode plate 12 is arranged between the copper sheet component 7 and the negative film component 6.

[0028] Please refer to Figure 2 , Each group of the screw holes 3 has four, and the four screw holes 3 are arranged in a rectangle; which is beneficial to fixing the pressing plate 2 and preventing the negative film component 6 and the copper sheet component 7 from shifting.

[0029] Please refer to Figure 1 , The pressing plate 2 is arranged at the upper end of the screw rod 5. A washer 13 is sleeved outside the screw rod 5, and the washer 13 is in fit connection with the pressing plate 2; the setting of the washer 13 is beneficial to limiting the pressing plate 2 and preventing the pressing plate 2 from moving.

[0030] Please refer to Figure 2 , A protective ring 14 is sleeved outside the copper sheet component 7; the copper sheet component 7 can be protected by the protective ring 14, and the protective ring 14 sleeved on the copper sheet component 7 prevents the copper sheet component 7 from detaching.

[0031] Please refer to Figure 1 , The negative film component 6 is surrounded by the screw holes 3. The common electrode plate 12 is arranged between the negative film component 6 and the copper sheet component 7 arranged inside the two groups of screw holes 3; the middle of the common electrode plate 12 is folded so that the two sides of the common electrode plate 12 are not at the same horizontal height. One side of the common electrode plate 12 passes through the inside of the copper sheet component 7, and one side passes through between the negative film component 6 and the copper sheet component 7.

[0032] Please refer to Figures 1-4, during use, first pass the screw rod 5 through the through hole 4 at the chamfer of the pressure plate 2. Since there is a hexagonal hole at the upper end of the screw rod 5, the screw rod 5 can be installed inside the screw hole 3, which facilitates the disassembly of the screw rod 5. The washer 13 provided on the side wall of the screw rod 5 is beneficial for limiting the pressure plate 2 to prevent the pressure plate 2 from moving. The copper sheet assembly 7 can be protected by the retaining ring 14, and the copper sheet assembly 7 is sleeved by the retaining ring 14 to prevent the copper sheet assembly 7 from detaching. The two sides of the common pole piece 12 are not at the same horizontal height through folding in the middle of the common pole piece 12. One side of the common pole piece 12 passes through the inside of the copper sheet assembly 7, and the other side passes through between the bottom sheet assembly 6 and the copper sheet assembly 7. When installing the guide sleeve 8, the clamping block 15 and the clamping groove 16 are engaged, which facilitates the installation of the guide sleeve 8 inside the pressing block 9. By providing the guide sleeve 8, the spring 10, the pressure plate 2 and the hole 11, the spring 10 is arranged inside the guide sleeve 8, and the top end of the spring 10 extends through the hole 11, so that wire can be led from the top, and the encapsulation is more convenient, the cost is lower, and the operation is more convenient, which is beneficial to the establishment of an automated encapsulation production line.

[0033] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improved concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An integrated gate component dedicated to the encapsulation of a thyristor module, comprising a copper base plate (1) and a pressing plate (2), characterized in that: Two sets of screw holes (3) are opened at the upper end of the copper base plate (1). A through hole (4) is opened at the chamfer of the pressing plate (2). A screw (5) penetrates through the interior of the through hole (4). The lower end of the screw (5) penetrates through the through hole (4) and is in threaded connection with the screw hole (3). On the upper end of the copper base plate (1) and inside the two sets of screw holes (3), a negative film assembly (6) is respectively provided. A copper sheet assembly (7) is arranged on the upper end of the negative film assembly (6). A guide sleeve (8) is arranged on the upper end of the copper sheet assembly (7). A pressing block (9) is sleeved on the upper end side wall of the guide sleeve (8). A spring (10) is arranged inside the guide sleeve (8). A hole (11) is opened at the upper end of the pressing plate (2). The upper end of the spring (10) penetrates through the hole (11). A common electrode plate (12) is arranged between the copper sheet assembly (7) and the negative film assembly (6); A clamping block (15) is arranged on the side wall of the guide sleeve (8). A clamping groove (16) is arranged on the upper end of the pressing block (9). The clamping block (15) is in clamping connection with the clamping groove (16). The guide sleeve (8) is clamped with the pressing block (9) through the clamping block (15) and the clamping groove (16). A protective ring (14) is sleeved on the outside of the copper sheet assembly (7). The pressing plate (2) is arranged at the upper end of the screw (5). A washer (13) is sleeved on the outside of the screw (5). The washer (13) is in fitting connection with the pressing plate (2).

2. The dedicated integrated gate assembly for thyristor module packaging according to claim 1, characterized in that: Each set of the screw holes (3) has four, and the four screw holes (3) are arranged in a rectangle.

3. The dedicated integrated gate assembly for the thyristor module package according to claim 1, characterized in that: The negative film assembly (6) is surrounded by the screw holes (3). The common electrode plate (12) penetrates through the negative film assembly (6) and the copper sheet assembly (7) arranged inside the two sets of screw holes (3).

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