Driving device of IGBT (Insulated Gate Bipolar Translator)

Abstract

The utility model discloses a driving device of an IGBT (Insulated Gate Bipolar Translator), and relates to the technical field of IGBT driving. The driver comprises a driver body, an IGBT body is movably clamped on the inner side of the driver body, a connecting port is formed in the top end of the driver body, the IGBT body is clamped on the inner side of the connecting port in a sliding mode, and first clamping grooves which are symmetrically distributed are formed in the inner side of the connecting port; through cooperation of the connecting port, the first fixing plate, the connecting column, the sliding rail, the first clamping groove, the second fixing plate and the first spring, the first fixing plate and the second fixing plate fix the IGBT body, when the IGBT body needs to be taken out, only the connecting column needs to be manually pulled to slide in the sliding rail, and then the first fixing plate does not fix the IGBT body any more; and then a second spring in a second clamping groove jacks up a second fixing plate, and the second fixing plate jacks the IGBT body out of the connecting port, so that the quick assembly and disassembly of the IGBT body are realized, the structure is simple, the production cost is low, and meanwhile, the assembly and disassembly of the IGBT body are very efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of IGBT driving, in particular to an IGBT driving device. Background Art

[0002] IGBT generally refers to insulated gate bipolar transistor, which combines the advantages of power transistor and power field effect transistor, has good characteristics and is widely used. IGBT is also a three-terminal device: gate, collector and emitter.

[0003] However, the existing IGBT driving device is still not ideal when used. The traditional driving device is not convenient for quick installation or removal of the IGBT, is not efficient enough, and has a complex structure and high cost for mass production. In view of the above problems, the inventor proposes an IGBT driving device to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: an IGBT driving device, comprising a driver body, an IGBT body is movably clamped on the inner side of the driver body, a connecting port is opened at the top of the driver body, the IGBT body is slidably clamped on the inner side of the connecting port, a symmetrically distributed first clamping groove is opened on the inner side of the connecting port, a symmetrically distributed first spring is fixedly installed on the inner side of the first clamping groove, a first fixing plate is slidably clamped on the inner side of the first clamping groove, one end of the first fixing plate is fixedly connected to one end of the first spring, a second clamping groove is opened on the inner bottom surface of the connecting port, a second spring is fixedly installed on the inner side of the second clamping groove, and the top of the second spring is fixedly connected to the second fixing plate.

[0005] Preferably, the bottom surface of the second fixed plate contacts the inner bottom surface of the connecting port, the top of the driver body is provided with symmetrically distributed slide rails, the inner side of the slide rails is slidably inserted with connecting columns, the slide rails and the first slot are connected to each other, the bottom surface of the connecting column is fixedly connected to the top of the first fixed plate, the top surface of the second fixed plate contacts the IGBT body, the bottom surface of the first fixed plate contacts the IGBT body, and a limit block is fixedly inserted on the outer side of the slide rails.

[0006] Preferably, the outer fixing sleeve of the driver body is provided with a protective sleeve.

[0007] Preferably, a rubber ring is fixedly connected to the top end of the protective sleeve.

[0008] Preferably, the outer side of the protective sleeve is provided with heat dissipation holes distributed in an array.

[0009] Preferably, the upper part of the side end of the protective sleeve is fixedly connected with a symmetrically distributed convex handle.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The first fixing plate and the second fixing plate fix the IGBT body through the cooperation of the connecting port, the first fixing plate, the connecting column, the slide rail, the first slot, the second fixing plate and the first spring. When the IGBT body needs to be removed, it is only necessary to manually pull the connecting column to slide in the slide rail, and then the first fixing plate will no longer fix the IGBT body. Then the second spring in the second slot will lift the second fixing plate, and the second fixing plate will push the IGBT body out of the connecting port, thereby realizing the rapid assembly and disassembly of the IGBT body. The structure is simple and the production cost is low, and the assembly and disassembly of the IGBT body is very efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the structural disassembly of the utility model.

[0015] Figure 3 It is a schematic diagram of the cross-section of the driver body structure of the utility model.

[0016] In the figure: 1. driver body; 2. IGBT body; 11. connection port; 12. first slot; 13. first spring; 14. first fixing plate; 15. second slot; 16. second spring; 17. second fixing plate; 18. slide rail; 19. connecting column; 20. limit block; 21. rubber ring; 22. protective cover; 23. heat dissipation hole; 24. convex handle. 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] Example: Figure 1-3As shown, the utility model provides a technical solution: a driving device of an IGBT, comprising a driver body 1, an IGBT body 2 is movably clamped on the inner side of the driver body 1, a connecting port 11 is opened at the top of the driver body 1, the IGBT body 2 is slidably clamped on the inner side of the connecting port 11, a symmetrically distributed first clamping groove 12 is opened on the inner side of the connecting port 11, a symmetrically distributed first spring 13 is fixedly installed on the inner side of the first clamping groove 12, a first fixed plate 14 is slidably clamped on the inner side of the first clamping groove 12, one end of the first fixed plate 14 is fixedly connected to one end of the first spring 13, a second clamping groove 15 is opened on the inner bottom surface of the connecting port 11, a second spring 16 is fixedly installed on the inner side of the second clamping groove 15, and a second fixed plate 17 is fixedly connected to the top of the second spring 16.

[0019] The bottom surface of the second fixed plate 17 contacts the inner bottom surface of the connecting port 11, the top of the driver body 1 is provided with symmetrically distributed slide rails 18, the inner side of the slide rails 18 is slidably inserted with connecting columns 19, the slide rails 18 and the first slots 12 are connected to each other, the bottom surface of the connecting columns 19 is fixedly connected to the top of the first fixed plate 14, the top surface of the second fixed plate 17 contacts the IGBT body 2, the bottom surface of the first fixed plate 14 contacts the IGBT body 2, and the outer side of the slide rails 18 is fixedly inserted with limit blocks 20.

[0020] By adopting the above technical solution, the connection column 19 is limited by setting the limit block 20 to prevent the connection column 19 from sliding and displacing, thereby sliding out of the slide rail 18.

[0021] The outer fixing sleeve of the driver body 1 is provided with a protective sleeve 22 .

[0022] By adopting the above technical solution, the protective cover 22 is provided to protect the driver body 1, thereby preventing the driver body 1 from encountering bumps or vibrations that may damage the circuit inside the driver body 1 and also affect the position where the IGBT body 2 and the driver body 1 are connected and offset.

[0023] The top end of the protective sleeve 22 is fixedly connected with a rubber ring 21 .

[0024] By adopting the above technical solution, the gap between the protective sleeve 22 and the driver body 1 is sealed by setting the rubber ring 21 to prevent dust from entering the protective sleeve 22 and then entering the driver body 1, causing performance impact or irreparable damage to the driver body 1, thereby effectively protecting the driver body 1.

[0025] The outer side of the protective sleeve 22 is provided with heat dissipation holes 23 distributed in an array.

[0026] By adopting the above technical solution, the heat dissipation holes 23 are provided to facilitate the heat dissipation of the driver body 1 through the heat dissipation holes 23 during operation, thereby preventing the driver body 1 from being damaged by overload for too long.

[0027] The upper side of the protective sleeve 22 is fixedly connected with symmetrically distributed convex handles 24 .

[0028] By adopting the above technical solution and providing the convex handle 24 , it is convenient to carry and hold the mobile protective cover 22 .

[0029] Working principle: First, insert the IGBT body 2 into the connection port 11, and the IGBT body 2 contacts the top of the first fixing plate 14. Then, pull the connecting column 19 to slide in the slide rail 18. The first fixing plate 14 moves with the connecting column 19 and is collected in the first slot 12. Then, insert the driver body 1 into the bottom of the connection port 11 and contact the second fixing plate 17. Then, manually release the connecting column 19, and then the first spring 13 pushes the first fixing plate 14 out. The bottom surface of the first fixing plate 14 contacts the top of the IGBT body 2. The fixing plate 14 cooperates with the second fixing plate 17 to fix the IGBT body 2. When the IGBT body 2 needs to be removed, it is only necessary to manually pull the connecting column 19 to slide in the slide rail 18, and then the first fixing plate 14 no longer fixes the IGBT body 2. Then the second spring 16 in the second slot 15 lifts the second fixing plate 17, and the second fixing plate 17 pushes the IGBT body 2 out of the connecting port 11, thereby realizing the rapid assembly and disassembly of the IGBT body 2. The structure is simple and the production cost is low. At the same time, the assembly and disassembly of the IGBT body 2 is very efficient.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An IGBT driving device, comprising a driver body (1), characterized in that: An IGBT body (2) is movably clamped on the inner side of the driver body (1), a connection port (11) is provided at the top of the driver body (1), the IGBT body (2) is slidably clamped on the inner side of the connection port (11), a symmetrically distributed first clamping groove (12) is provided on the inner side of the connection port (11), a symmetrically distributed first spring (13) is fixedly installed on the inner side of the first clamping groove (12), a first fixing plate (14) is slidably clamped on the inner side of the first clamping groove (12), one end of the first fixing plate (14) is fixedly connected to one end of the first spring (13), a second clamping groove (15) is provided on the inner bottom surface of the connection port (11), a second spring (16) is fixedly installed on the inner side of the second clamping groove (15), and the top of the second spring (16) is fixedly connected to the second fixing plate (17).

2. An IGBT driving device as claimed in claim 1, characterized in that: The bottom surface of the second fixing plate (17) contacts the inner bottom surface of the connection port (11); the top of the driver body (1) is provided with symmetrically distributed slide rails (18); a connecting column (19) is slidably inserted into the inner side of the slide rail (18); the slide rail (18) and the first slot (12) are connected to each other; the bottom surface of the connecting column (19) is fixedly connected to the top of the first fixing plate (14); the top surface of the second fixing plate (17) contacts the IGBT body (2); the bottom surface of the first fixing plate (14) contacts the IGBT body (2); and a limit block (20) is fixedly inserted into the outer side of the slide rail (18).

3. The IGBT driving device according to claim 1, characterized in that: The outer fixing sleeve of the driver body (1) is provided with a protective sleeve (22).

4. An IGBT driving device as claimed in claim 3, characterized in that: The top end of the protective sleeve (22) is fixedly connected with a rubber ring (21).

5. An IGBT driving device as claimed in claim 4, characterized in that: The outer side of the protective sleeve (22) is provided with heat dissipation holes (23) distributed in an array.

6. The IGBT driving device according to claim 5, characterized in that: The upper part of the side end of the protective sleeve (22) is fixedly connected with symmetrically distributed convex handles (24).

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