Driving device of IGBT (Insulated Gate Bipolar Translator)

Abstract

The utility model discloses an IGBT (Insulated Gate Bipolar Translator) driving device, relates to the technical field of electronic equipment, and solves the problems that the operation is inconvenient, the workload is increased, the structure is complicated, and the production cost is increased as four transmission mechanisms need to be pressed at the same time to realize the installation and disassembly of a driver when the driver is installed and disassembled by the existing device. According to the scheme, the IGBT driver comprises a mounting plate and an IGBT driver body, the IGBT driver body is mounted on the upper surface of the mounting plate, connecting mechanisms are mounted between the two sides of the lower surface of the IGBT driver body and the mounting plate, and openings are formed in the two sides of the outer surface of the IGBT driver body. Through the arrangement of the connecting mechanism and the elastic pressing mechanism, the IGBT driver can be installed only by directly pressing the IGBT driver downwards, the IGBT driver can be disassembled only by pressing the pressing plates on the two sides downwards, the operation is simple, repeated operation is not needed, and the workload is reduced.

Description

Technical Field

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

[0002] An IGBT driver is a device that drives an IGBT and regulates its overall performance. During the installation process, existing IGBT drivers are mostly connected by bolts. To facilitate the installation of the IGBT driver, the IGBT driver is also installed by snap-on connection. After searching, a Chinese patent authorization number CN215601190U discloses a high-power IGBT driver, including an IGBT driver, a matching plate and a connection, which solves the problem that existing IGBT drivers are fixed to the matching plate by bolts, which requires users to use installation tools. Without installation tools, installation cannot be achieved, and the installation process is too troublesome and inconvenient for users to install.

[0003] Although the above technical solution can realize the installation and disassembly of the IGBT driver without the aid of tools, since the cross-sectional shape of the limit rod is rectangular, four transmission mechanisms need to be pressed simultaneously when installing and disassembling the driver to realize the installation and disassembly of the driver, which causes inconvenience in operation and increases the workload. In addition, four corresponding limit mechanisms and transmission mechanisms are provided, the structure is complicated, and the production cost is increased. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an IGBT driving device, which solves the problem that the prior device proposed in the background technology requires pressing four transmission mechanisms at the same time when installing and removing the driver to achieve the installation and removal of the driver, thereby causing inconvenience in operation and increasing the workload, and the structure is complex, increasing production costs.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an IGBT driving device, comprising a mounting plate and an IGBT driver, the IGBT driver being mounted on the upper surface of the mounting plate, a connecting mechanism being installed between the mounting plate and both sides of the lower surface of the IGBT driver, openings being provided on both sides of the outer surface of the IGBT driver, and an elastic pressing mechanism matching the connecting mechanism being installed through the interior of the opening;

[0006] The connecting mechanism includes positioning blocks symmetrically fixedly connected to both sides of the lower surface of the IGBT driver. The upper surface of the mounting plate is symmetrically provided with two positioning grooves matched with the positioning blocks, which facilitates the positioning of the IGBT driver and avoids horizontal movement of the IGBT driver.

[0007] Preferably, a groove is provided on one side of the outer surface of the positioning block, a slider is slidably connected to the inside of the groove, two arc-shaped clamping blocks are symmetrically and fixedly connected to one side of the outer surface of the slider, and two clamping grooves are provided on one side of the inner wall of the positioning groove. Both of the two arc-shaped clamping blocks penetrate the positioning block and extend to the inside of the corresponding clamping groove. One end of the arc-shaped clamping block enters the clamping groove, which can clamp the positioning block, thereby preventing the IGBT driver and the positioning block from falling off, thereby realizing the fixed installation of the IGBT driver.

[0008] Preferably, a side plate is embedded and fixedly connected inside the groove, and a first spring is fixedly connected between one side of the outer surface of the side plate and the slider, and the first spring can drive the arc-shaped clamping block to automatically reset, thereby facilitating the fixing of the IGBT driver.

[0009] Preferably, a hollow groove is provided on the upper surface of the slider, a wedge block is fixedly connected to the inner wall of the hollow groove, the top of the wedge block is an inclined surface, and the wedge block and the slider are integrated into one. The integrated structure has a simple structure, can save materials, and avoid increasing production costs.

[0010] Preferably, the elastic pressing mechanism includes a pressing rod that passes through the opening and the positioning block in sequence, the pressing rod is slidably connected to the IGBT driver and the positioning block, the bottom end of the pressing rod is provided with an inclined surface, and the pressing rod cooperates with the wedge block. The pressing rod moves downward, and the inclined surface at the bottom cooperates with the inclined surface of the wedge block, thereby driving the wedge block and the slider to move, and then driving the arc-shaped card block to move out of the card slot, so that the IGBT driver can be removed.

[0011] Preferably, a pressure plate is fixedly connected to the top of the pressing rod, and a second spring is fixedly connected between the lower surface of the pressing plate and the inner bottom of the opening, so that the pressure plate is convenient for pressing the pressing rod, and the second spring is convenient for driving the pressing rod to reset.

[0012] The utility model provides an IGBT driving device, which has the following beneficial effects:

[0013] 1. The IGBT driving device, through the setting of the connecting mechanism and the elastic pressing mechanism, only has two corresponding connecting mechanisms and the elastic pressing mechanism installed on both sides, and the simple structure can save materials and reduce production costs, thereby solving the problem of complex structure and increased production costs of the existing device.

[0014] 2. This IGBT driving device, through the provided connecting mechanism and elastic pressing mechanism, can realize the installation of the IGBT driver by simply pressing the IGBT driver directly downward, and can drive the arc-shaped card block to move out of the card slot by simply pressing the pressure plates on both sides downward, so that the IGBT driver can be removed. The operation is simple, no multiple operations are required, and the workload is reduced, thereby solving the problem of the existing device that it is necessary to press four transmission mechanisms at the same time when installing and removing the driver to realize the installation and removal of the driver, causing inconvenience in operation and increased workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the IGBT driver and positioning block of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the mounting plate of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the connecting mechanism and the elastic pressing mechanism of the utility model;

[0019] Figure 5 It is a partial structural schematic diagram of the connecting mechanism and the elastic pressing mechanism of the utility model;

[0020] Figure 6 It is a schematic diagram of the internal structure of the positioning block of the utility model.

[0021] In the figure, 1, mounting plate; 2, IGBT driver; 3, connecting mechanism; 31, positioning block; 32, positioning groove; 33, groove; 34, slider; 35, arc-shaped block; 36, groove; 37, side plate; 38, first spring; 39, empty groove; 310, wedge block; 4, opening; 5, elastic pressing mechanism; 51, pressing rod; 52, pressure plate; 53, second spring. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1:

[0024] like Figures 1 to 6As shown, an IGBT driving device comprises a mounting plate 1 and an IGBT driver 2, wherein the IGBT driver 2 is mounted on the upper surface of the mounting plate 1, and a connecting mechanism 3 is installed between the two sides of the lower surface of the IGBT driver 2 and the mounting plate 1, wherein the connecting mechanism 3 comprises positioning blocks 31 symmetrically fixedly connected to the two sides of the lower surface of the IGBT driver 2, and the upper surface of the mounting plate 1 is symmetrically provided with two positioning grooves 32 matched with the positioning blocks 31. A groove 33 is provided on one side of the outer surface of the positioning block 31, and a slider 34 is slidably connected inside the groove 33, and two arc-shaped clamping blocks 35 are symmetrically fixedly connected to one side of the outer surface of the slider 34, and two clamping grooves 36 are provided on one side of the inner wall of the positioning groove 32, and the two arc-shaped clamping blocks 35 both penetrate the positioning block 31 and extend to the inside of the corresponding clamping groove 36. A side plate 37 is embedded and fixedly connected inside the groove 33, and a first spring 38 is fixedly connected between one side of the outer surface of the side plate 37 and the slider 34. When installing the IGBT driver 2, it is only necessary to align the two positioning blocks 31 with the two positioning grooves 32, and then press the IGBT driver 2 downward. At this time, the arc-shaped block 35 will automatically retract due to its arc-shaped bottom. When the arc-shaped block 35 moves to coincide with the groove 36, the first spring 38 will automatically drive the slider 34 and the arc-shaped block 35 to reset, so that the arc-shaped block 35 enters the groove 36, thereby realizing the installation of the IGBT driver 2.

[0025] A slot 39 is provided on the upper surface of the slider 34, and a wedge block 310 is fixedly connected to the inner wall of the slot 39. The top of the wedge block 310 is an inclined surface. The wedge block 310 and the slider 34 are integrated. The integrated arrangement can save materials and reduce production costs, thereby solving the problem of complex structure and increased production costs of the existing device.

[0026] Embodiment 2:

[0027] like Figures 1 to 6As shown, both sides of the outer surface of the IGBT driver 2 are provided with openings 4, and an elastic pressing mechanism 5 matching with the connecting mechanism 3 is installed inside the opening 4, and the elastic pressing mechanism 5 includes a pressing rod 51 that passes through the opening 4 and the positioning block 31 in sequence, and the pressing rod 51 is slidably connected with the IGBT driver 2 and the positioning block 31, and the bottom end of the pressing rod 51 is arranged as an inclined surface, and the pressing rod 51 matches with the wedge block 310. The top end of the pressing rod 51 is fixedly connected with a pressing plate 52, and a second spring 53 is fixedly connected between the lower surface of the pressing plate 52 and the inner bottom of the opening 4. When the IGBT driver 2 needs to be removed, it is only necessary to press down the pressure plates 52 on both sides at the same time. The downward movement of the pressure plates 52 drives the pressing rod 51 to move downward, and the inclined surface at the bottom of the pressing rod 51 cooperates with the inclined surface of the wedge block 310, thereby driving the wedge block 310 and the slider 34 to move, and then driving the arc-shaped clamping block 35 to move out of the clamping slot 36, so that the IGBT driver 2 can be removed. The operation is simple, no multiple operations are required, and the workload is reduced, thereby solving the problem that the existing device needs to press four transmission mechanisms at the same time to achieve the disassembly of the driver, causing inconvenience in operation and increased workload.

[0028] Working principle: When installing the IGBT driver 2, you only need to align the two positioning blocks 31 with the two positioning slots 32, and then press the IGBT driver 2 downward. At this time, the arc-shaped card block 35 will automatically retract due to its arc-shaped bottom. When the arc-shaped card block 35 moves to coincide with the card slot 36, the first spring 38 will automatically drive the slider 34 and the arc-shaped card block 35 to reset, so that the arc-shaped card block 35 enters the card slot 36, thereby realizing the installation of the IGBT driver 2; when the IGBT driver 2 needs to be disassembled, just press down the pressure plates on both sides at the same time. 52, the downward movement of the pressing plate 52 drives the pressing rod 51 to move downward, and the inclined surface at the bottom of the pressing rod 51 cooperates with the inclined surface of the wedge block 310, thereby driving the wedge block 310 and the slider 34 to move, and then driving the arc-shaped clamping block 35 to move out of the clamping slot 36, so that the IGBT driver 2 can be disassembled, the operation is simple, no multiple operations are required, and the workload is reduced, thereby solving the problem that the existing device needs to press four transmission mechanisms at the same time to achieve the disassembly of the driver when disassembling the driver, causing inconvenience in operation and increased workload. In addition, the device is only equipped with two corresponding connecting mechanisms 3 and elastic pressing mechanisms 5 on both sides, and the simple structure can save materials and reduce production costs, thereby solving the problem that the existing device has a complex structure and increases production costs.

[0029] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An IGBT driving device, comprising a mounting plate (1) and an IGBT driver (2), characterized in that: The IGBT driver (2) is mounted on the upper surface of the mounting plate (1); connecting mechanisms (3) are installed between the mounting plate (1) and the lower surface of the IGBT driver (2) on both sides; openings (4) are provided on both sides of the outer surface of the IGBT driver (2); and elastic pressing mechanisms (5) matching the connecting mechanisms (3) are installed through the interior of the openings (4); The connection mechanism (3) comprises positioning blocks (31) symmetrically fixedly connected to two sides of the lower surface of the IGBT driver (2), and the upper surface of the mounting plate (1) is symmetrically provided with two positioning grooves (32) matching with the positioning blocks (31).

2. The IGBT driving device according to claim 1, characterized in that: A groove (33) is provided on one side of the outer surface of the positioning block (31), a slider (34) is slidably connected to the interior of the groove (33), two arc-shaped clamping blocks (35) are symmetrically fixedly connected to one side of the outer surface of the slider (34), and two clamping grooves (36) are provided on one side of the inner wall of the positioning groove (32), and the two arc-shaped clamping blocks (35) both penetrate the positioning block (31) and extend to the interior of the corresponding clamping groove (36).

3. The IGBT driving device according to claim 2, characterized in that: A side plate (37) is embedded and fixedly connected inside the groove (33), and a first spring (38) is fixedly connected between one side of the outer surface of the side plate (37) and the slider (34).

4. The IGBT driving device according to claim 3, characterized in that: An empty groove (39) is formed on the upper surface of the sliding block (34), a wedge block (310) is fixedly connected to the inner wall of the empty groove (39), the top of the wedge block (310) is arranged as an inclined surface, and the wedge block (310) and the sliding block (34) are arranged as one body.

5. The IGBT driving device according to claim 4, characterized in that: The elastic pressing mechanism (5) comprises a pressing rod (51) which sequentially passes through the opening (4) and the positioning block (31); the pressing rod (51) is slidably connected to the IGBT driver (2) and the positioning block (31); the bottom end of the pressing rod (51) is provided with an inclined surface, and the pressing rod (51) cooperates with the wedge block (310).

6. The IGBT driving device according to claim 5, characterized in that: A pressing plate (52) is fixedly connected to the top end of the pressing rod (51), and a second spring (53) is fixedly connected between the lower surface of the pressing plate (52) and the inner bottom of the opening (4).

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