CN219123205U

CN219123205U - Sintering clamp based on power module

Info

Publication number: CN219123205U
Application number: CN202222802171.9U
Authority: CN
Inventors: 华文强
Original assignee: Rongtai Semiconductor Jiangsu Co ltd
Current assignee: Rongtai Semiconductor Jiangsu Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-06-02
Anticipated expiration: 2032-10-25

Abstract

The utility model provides a power module-based sintering clamp which comprises a bottom support, a titanium alloy DBC (direct current) fixing frame and a cover plate, wherein a placing groove is formed in the middle of the top end of the bottom support, a fixing frame placing groove is formed in the top end of the bottom support, the inside of the fixing frame placing groove is connected with the titanium alloy DBC fixing frame in a placing mode, cover plate clamping grooves are formed in two sides of the top end of the bottom support, and the two cover plate clamping grooves are respectively connected with two ends of the cover plate in a placing mode. The utility model can realize sintering together of the power module bottom plate, the electrodes and the DBC according to the designed position of the product and the required size, has simple practical operation and high feasibility and improves the production efficiency and quality of the product.

Description

Sintering clamp based on power module

Technical Field

The utility model belongs to the technical field of sintering clamps, and relates to a power module-based sintering clamp.

Background

The intelligent power module is an advanced hybrid integrated power component taking IGBT as a core, and is composed of a high-speed low-power consumption tube core (IGBT), an optimized gate electrode driving circuit and a rapid protection circuit. The IGBT tube core in the IPM is high-speed, and the driving circuit is closely adjacent to the IGBT, so that the driving delay is small, the switching speed of the IPM is high, and the loss is small. The IPM is internally integrated with a real-time detection circuit capable of continuously detecting the current and the temperature of the IGBT, and when serious overload and even direct short circuit occur and the temperature is overheated, the IGBT is controlled to be turned off in a soft way and simultaneously sends out a fault signal. In addition, the IPM also has the functions of interlocking bridge arm pairs, undervoltage protection of a driving power supply and the like. Although the IPM is more expensive, the IPM has the advantages of compact structure, high reliability, easy use and the like compared with a simple IGBT due to the integrated driving and protecting functions.

The power module component accessory needs to be sintered in the combination process, the existing sintering clamp cannot sinter the bottom plate, the electrode and the DBC together according to the required size in the position of the product design, the actual operation is complex, the production efficiency and the quality of the product are greatly reduced, and therefore, the power module-based sintering clamp is provided.

Disclosure of Invention

The utility model aims to provide a sintering clamp based on a power module, which is used for solving the problems in the background technology.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a based on power module sintering anchor clamps, includes collet, titanium alloy DBC mount and apron, the standing groove has been seted up at the middle part on collet top, the mount standing groove has been seted up on the top of collet, the inside connection of placing with titanium alloy DBC mount of standing groove, the apron draw-in groove has all been seted up to the both sides on collet top, two the apron draw-in groove is placed with the both ends of apron respectively and is connected.

In the above power module-based sintering clamp, two symmetrical dividing strips are fixedly arranged in the middle of the titanium alloy DBC fixing frame.

In the above power module-based sintering clamp, the middle part of the top end of the cover plate is provided with the middle electrode groove, and both sides of the top end of the cover plate are provided with the side electrode grooves.

Compared with the prior art, the sintering clamp based on the power module has the advantages that: the utility model can realize sintering together of the power module bottom plate, the electrodes and the DBC according to the designed position of the product and the required size, has simple practical operation and high feasibility and improves the production efficiency and quality of the product.

Drawings

Fig. 1 is a schematic perspective view of a power module-based sintering fixture according to the present utility model.

Fig. 2 is a schematic plan view of the power module-based sintering fixture of fig. 1.

Fig. 3 is a schematic perspective view of a power module-based sintering fixture shoe.

Fig. 4 is a schematic diagram of a three-dimensional structure of a titanium alloy DBC holder based on a power module sintering fixture according to the present utility model.

Fig. 5 is a schematic perspective view of a power module-based sintered clamp cover plate according to the present utility model.

In the figure, 1, a base; 2. titanium alloy DBC fixing frame; 3. a cover plate; 4. a placement groove; 5. a cover plate clamping groove; 6. a fixing rack placing groove; 7. a middle electrode groove; 8. a side electrode groove; 9. a dividing strip.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the power module-based sintering clamp comprises a bottom support 1, a titanium alloy DBC fixing frame 2 and a cover plate 3, wherein a placing groove 4 is formed in the middle of the top end of the bottom support 1, a fixing frame placing groove 6 is formed in the top end of the bottom support 1, the inside of the fixing frame placing groove 6 is in placing connection with the titanium alloy DBC fixing frame 2, cover plate clamping grooves 5 are formed in two sides of the top end of the bottom support 1, and the two cover plate clamping grooves 5 are respectively in placing connection with two ends of the cover plate 3.

The middle part of titanium alloy DBC mount 2 is fixed and is equipped with two symmetrical dividing strips 9 for separate place DBC, prevent that two DBCs from sintering together, middle electrode groove 7 has been seted up at the middle part on two apron 3 tops, and side electrode groove 8 has all been seted up to the both sides on apron 3 top.

When the power module is specifically used, as shown in fig. 1, the sintered raw materials comprise a bottom plate, DBCs, two side electrodes and a middle electrode, the bottom plate is placed at the position of a placing groove 4 of the bottom support 1, then a titanium alloy DBC fixing frame 2 is placed in a fixing frame placing groove 6, two DBCs are respectively placed in the titanium alloy DBC fixing frame 2, and the two side electrodes and the middle electrode are respectively in butt joint with a side electrode groove 8 and a middle electrode groove 7, so that a cover plate 3 and a cover plate clamping groove 5 are placed and connected for sintering.

What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a based on power module sintering anchor clamps, includes collet (1), titanium alloy DBC mount (2) and apron (3), its characterized in that, standing groove (4) have been seted up at the middle part on collet (1) top, mount standing groove (6) have been seted up on the top of collet (1), inside and titanium alloy DBC mount (2) of mount standing groove (6) are placed and are connected, apron draw-in groove (5) have all been seted up to the both sides on collet (1) top, two apron draw-in groove (5) are placed with the both ends of apron (3) respectively and are connected.

2. The power module-based sintering clamp according to claim 1, wherein two symmetrical dividing strips (9) are fixedly arranged in the middle of the titanium alloy DBC fixing frame (2).

3. The power module-based sintering clamp according to claim 1, wherein a middle electrode groove (7) is formed in the middle of the top end of the cover plate (3), and side electrode grooves (8) are formed in two sides of the top end of the cover plate (3).