A rapid press device for SIC power module preparation

Abstract

The utility model discloses a kind of SIC power module preparation is used to quick pressing device, including pressing outer box, lifting drive mechanism and quick pressing assembly;Pressing outer box bottom forms pressing station, inside is equipped with multiple groups of synchronous pressing unit, each group contains pressing column and flexible pressing cotton.The device adopts track integration design, product tray is automatically transferred to pressing station, accurate positioning is realized through positioning plate and guide wheel;Lifting drive mechanism drives pressing plate to press down, buffer spring ensures that pressing process is stable;The device realizes the full-automatic pressing of SiC power module, eliminates manual operation, substantially improves production efficiency through multiple synchronous pressing units, accurate positioning mechanism guarantees pressing accuracy, and flexible pressing design ensures product safety;The utility model solves the problem of low efficiency and poor accuracy of traditional manual pressing, and is suitable for large-scale production of SiC power module in new energy automobile and other fields.

Description

Technical Field

[0001] This utility model belongs to the field of power module packaging technology, specifically relating to a rapid pressing device for the fabrication of SiC power modules. Background Technology

[0002] With the rapid development of the semiconductor industry, especially the increasingly widespread application of silicon carbide (SiC) power modules in new energy vehicles, industrial power supplies, and other fields, higher demands are being placed on the capacity and efficiency of SiC power module packaging processes. However, many packaging processes still rely on manual operation, which not only limits the improvement of production efficiency but also increases the risks to quality control. To meet the industry's urgent need for efficient and high-quality production, adopting automated or semi-automated solutions to replace traditional manual operations is particularly important.

[0003] In current SiC power module packaging processes, traditional manual lamination methods suffer from low operational efficiency and susceptibility to human factors (such as placement jitter and fatigue errors). To improve production capacity, the industry has gradually adopted automated lamination equipment to replace manual operation; however, existing automated lamination equipment still has significant drawbacks. For example, product trays are prone to positional deviations when transported to the lamination station, and conventional machine lamination mechanisms lack dynamic correction capabilities, leading to misalignment between the lamination components and the SiC power module, causing packaging misalignment or even module damage, severely restricting packaging yield and production efficiency. Utility Model Content

[0004] The present invention aims to provide a rapid pressing device for the fabrication of SiC power modules, which solves the technical problem of misalignment during pressing caused by product position deviation during the pressing process of existing automated pressing equipment.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a rapid pressing device for SiC power module fabrication, comprising a pressing outer box, a pressing station formed at the bottom of the pressing outer box, and a lifting drive mechanism, a rapid pressing assembly, and a positioning assembly disposed inside the pressing outer box; the rapid pressing assembly comprises a pressing plate, the lifting drive mechanism drives the pressing plate to move vertically up and down, and the bottom of the pressing plate is provided with multiple sets of product pressing parts corresponding to the positions of the SiC power modules on the product tray; the positioning assembly is disposed at the bottom of the pressing plate and is used to position the product tray during the pressing process.

[0006] The product pressing component includes a rectangular mounting plate, which is fixed to the bottom surface of the pressing plate. Pressure posts are provided at the four corners of the mounting plate. A connecting plate is also installed on the bottom surface of the mounting plate, and two pressure pads are provided at the bottom of the connecting plate.

[0007] Furthermore, a push plate is provided above the pressing plate, and guide bolts are fixed at the four corners of the bottom surface of the push plate. The pressing plate has round holes corresponding to the guide bolts, and the guide bolts pass through the corresponding round holes. Each guide bolt is fitted with a buffer spring located between the pressing plate and the push plate. The lifting drive mechanism is connected to the upper surface of the push plate.

[0008] Furthermore, slide blocks are installed at the four corners of the pressing plate, and four slide rails are installed on the inner wall of the pressing outer box, with the four slide blocks slidably mounted on the four slide rails respectively.

[0009] Furthermore, the lifting drive mechanism includes a cylinder, the cylinder body of which is installed at the top inside the pressing outer box, and the piston rod of the cylinder is connected to the upper surface of the push plate.

[0010] Furthermore, a guide seat is fixed on the cylinder body of the cylinder, and four guide sleeves are provided on the guide seat. A guide post that slides with the guide sleeves is fixed on the push plate.

[0011] Furthermore, the positioning component includes positioning plates symmetrically arranged on the left and right sides of the pressing plate, with the opposite surfaces of the left and right positioning plates forming a positioning surface, and a positioning area formed between the left and right positioning plates for positioning the product pallet; the lower end of the positioning plate is provided with a guide slope.

[0012] Furthermore, the positioning plate is provided with multiple vertical slots and a coupling rod that runs through all the vertical slots. Multiple rotatable guide wheels are installed on the coupling rod. The number of guide wheels on the coupling rod is the same as the number of vertical slots. The guide wheels on the coupling rod are located in all the vertical slots, and part of the wheel body of the guide wheel protrudes from the positioning surface.

[0013] Furthermore, the pressing outer box is composed of an upper box plate, a left box plate, a right box plate, a front box plate, and a rear box plate, wherein observation windows are provided on both the front box plate and the rear box plate, and fixed connecting plates are installed at the bottom of both the front box plate and the rear box plate.

[0014] Compared with existing technologies, the advantages of this invention are as follows: This invention achieves a fully automated pressing process through a track-integrated design, eliminating the need for manual product handling. First, the positioning plate guide slope cooperates with the product tray slope to achieve adaptive adjustment, ensuring accurate positioning of the product tray and ensuring that the SiC power module and the product pressing component are vertically aligned, completely solving the problem of misalignment between the pressing component and the SiC module and eliminating the risk of packaging misalignment. Second, the design of multiple sets of synchronous product pressing components allows for one-click completion of the pressing operation of the entire tray of SiC power modules, significantly improving production efficiency. The slide and slide rail, guide sleeve and guide post form a dual guiding system, making the pressing process stable and controllable. The addition of buffer springs and the flexible contact characteristics of the pressing cotton ensure a safe and reliable pressing effect. This device significantly improves the packaging efficiency and quality of SiC power modules, meeting the needs of modern production. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is an isometric view of the present invention;

[0017] Figure 2 An isometric view of this utility model after removing the front and right side panels;

[0018] Figure 3 This is a schematic diagram of the rapid bonding assembly.

[0019] Figure 4 This is a schematic diagram showing the connection between the lifting drive mechanism and the quick-pressing assembly.

[0020] Figure 5 This is a diagram showing the working state of this utility model;

[0021] Figure 6 This is a schematic diagram of the positioning plate.

[0022] The components represented by each number in the attached diagram are listed below: 1. Pressing outer box; 4. Pressing plate; 6. Mounting plate; 7. Pressing column; 8. Connecting plate; 9. Pressing cotton; 10. Push plate; 11. Guide bolt; 13. Buffer spring; 14. Slide seat; 15. Slide rail; 16. Cylinder; 17. Guide seat; 18. Guide sleeve; 19. Guide column; 20. Upper box plate; 21. Left box plate; 22. Right box plate; 23. Front box plate; 24. Rear box plate; 25. Observation window; 26. Fixed connecting plate; 27. Positioning plate; 28. Positioning surface; 29. ​​Guide slope; 30. Vertical groove; 31. Coupling rod; 32. Guide wheel; 33. Through-plate platform track; 34. Product tray. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The present invention will be further described in detail below with reference to the embodiments.

[0025] A specific embodiment 1 of the rapid pressing device for fabricating SiC power modules provided by this utility model is as follows: Figure 1 and Figure 2 As shown, a rapid pressing device for SiC power module fabrication is used in the pressing process during SiC power module assembly. Its core structure includes a pressing outer box 1, a lifting drive mechanism, and a rapid pressing assembly. The bottom of the pressing outer box 1 is open, forming a pressing operation area, which houses the lifting drive mechanism and the rapid pressing assembly. Figure 3 As shown, the rapid pressing assembly includes a pressing plate 4, which is driven to move vertically by a lifting drive mechanism.

[0026] Six sets of product pressing components are arranged at the bottom of the pressing plate 4, each corresponding to a position of the SiC power module in the product tray 34. Each set of product pressing components includes a rectangular mounting plate 6, which is fixed to the bottom surface of the pressing plate 4, and has vertically downward pressure posts 7 at each of its four corners. Two pieces of polyester fiber padding 9 are installed below the mounting plate 6 via a connecting plate 8 to provide flexible cushioning contact.

[0027] A push plate 10 is provided above the pressing plate 4. Guide bolts 11 are fixed at the four corners of the bottom surface of the push plate 10. The pressing plate 4 has round holes that match the guide bolts 11. The guide bolts 11 pass through the round holes and are fitted with buffer springs 13. The buffer springs 13 are located between the pressing plate 4 and the push plate 10. Figure 4 As shown, the output end of the lifting drive mechanism is connected to the upper surface of the push plate 10 to achieve pressure transmission.

[0028] Slide seats 14 are installed at each of the four corners of the pressing plate 4, and four slide rails 15 are correspondingly provided on the inner wall of the pressing outer box 1. The slide seats 14 and the slide rails 15 form a sliding fit to ensure the vertical movement accuracy of the pressing plate 4. The lifting drive mechanism adopts a cylinder 16. The cylinder body of the cylinder 16 is fixed to the inner top wall of the pressing outer box 1, and the piston rod is directly connected to the push plate 10.

[0029] The cylinder body of cylinder 16 is fixedly connected to guide seat 17, and four guide sleeves 18 are provided on guide seat 17; four guide posts 19 are fixed on push plate 10, and the guide posts 19 are inserted into guide sleeves 18 to form a precision guiding structure. The pressing outer box 1 is formed by upper box plate 20, left box plate 21, right box plate 22, front box plate 23 and rear box plate 24. The front box plate 23 and the rear box plate 24 are both provided with observation windows 25, and the bottom of the two are extended and fixedly connected by plates 26 for mounting the equipment on the plate platform track 33.

[0030] The specific operation process of the pressing device in this embodiment is as follows: The rapid pressing component has an initial position and a pressing position. When the product tray 34 carrying the SiC power module is transferred to the pressing operation area through the track 33, the cylinder 16 starts to push the top plate 10 down. After the buffer spring 13 is pre-compressed, it drives the six sets of product pressing parts to press down synchronously through the pressing plate 4. The pressure columns 7 at the four corners and the pressure cotton 9 of the polyester fiber directly contact the product to complete the pressing action. During this process, the slide 14 slides along the slide rail 15 to ensure verticality, and the guide column 19 and the guide sleeve 18 system eliminate lateral offset. Then the piston rod of the cylinder 16 retracts, the buffer spring 13 releases the stored energy to assist in smooth lifting, and the pressing plate 4 is reset and moves out the product tray 34 that has completed pressing.

[0031] A specific embodiment 2 of the rapid pressing device for SiC power module fabrication provided by this utility model differs from specific embodiment 1 in that, when the product tray 34 is transferred to the pressing operation area, a positioning deviation may occur, that is, the upper product pressing component does not correspond to the position of the SiC power module in the lower product tray 34. To solve the above problem, this embodiment is designed as follows: positioning plates 27 are symmetrically installed on the left and right sides of the pressing plate 4, and the inner surfaces of the two positioning plates 27 are positioning surfaces 28 (e.g., ...). Figure 6 As shown), this constitutes the product pallet positioning area. The bottom of the positioning plate 27 is machined with a guide slope 29, and both ends of the pallet 34 also have sloped structures. The guide slope 29 cooperates with the sloped structures to facilitate the pallet 34 sliding into the positioning area (as shown). Figure 5 (As shown). The positioning plate 27 is provided with four vertical slots 30 and six coupling rods 31 that pass through all the vertical slots 30. Two of the coupling rods 31 are located on the guide slope 29. Rotatable guide wheels 32 are installed on the coupling rods 31. Part of the guide wheel 32 protrudes from the positioning surface 28 to form a rolling guide structure. The rolling guide structure provides guidance for the relative movement between the product tray and the positioning surface 28, ensuring that the SiC power module and the product pressing part are accurately aligned during the pressing process.

[0032] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid pressing device for fabricating SiC power modules, characterized in that: The device includes a pressing outer box (1), with a pressing station formed at the bottom of the pressing outer box (1). The pressing outer box (1) is equipped with a lifting drive mechanism, a rapid pressing assembly, and a positioning assembly. The rapid pressing assembly includes a pressing plate (4). The lifting drive mechanism drives the pressing plate (4) to move vertically up and down. The bottom of the pressing plate (4) is provided with multiple sets of product pressing parts corresponding to the positions of the SiC power modules on the product tray. The positioning assembly is fixed on the bottom of both sides of the pressing plate to position the product tray during the pressing process.

2. The rapid pressing device for fabricating SiC power modules according to claim 1, characterized in that: The product pressing component includes a rectangular mounting plate (6), which is fixed to the bottom surface of the pressing plate (4). Pressure posts (7) are provided at the four corners of the mounting plate (6). A connecting plate (8) is also installed on the bottom surface of the mounting plate (6). Two pressure cotton pieces (9) are provided at the bottom of the connecting plate (8).

3. The rapid pressing device for fabricating SiC power modules according to claim 2, characterized in that: A push plate (10) is provided above the pressing plate (4). Guide bolts (11) are fixed at the four corners of the bottom surface of the push plate (10). The pressing plate (4) has round holes corresponding to the guide bolts (11). The guide bolts (11) pass through the corresponding round holes. Each guide bolt (11) is fitted with a buffer spring (13) located between the pressing plate (4) and the push plate (10). The lifting drive mechanism is connected to the upper surface of the push plate (10).

4. The rapid pressing device for fabricating SiC power modules according to claim 3, characterized in that: Slides (14) are installed at the four corners of the pressing plate (4), and four slide rails (15) are installed on the inner wall of the pressing outer box (1). The four slides (14) are slidably installed on the four slide rails (15).

5. The rapid pressing device for fabricating SiC power modules according to claim 4, characterized in that: The lifting drive mechanism includes a cylinder (16), the cylinder body of which is installed at the top inside the pressing outer box (1), and the piston rod of the cylinder (16) is connected to the upper surface of the push plate (10).

6. The rapid pressing device for fabricating SiC power modules according to claim 5, characterized in that: The cylinder (16) has a guide seat (17) fixed on its cylinder body. The guide seat (17) has four guide sleeves (18). The push plate (10) has a guide post (19) that slides with the guide sleeves (18).

7. The rapid pressing device for fabricating SiC power modules according to claim 6, characterized in that: The positioning component includes positioning plates (27) symmetrically arranged on the left and right sides of the pressing plate (4). The opposite surfaces of the left and right positioning plates (27) are positioning surfaces (28). A positioning area is formed between the left and right positioning plates (27) for positioning the product pallet. A guide slope (29) is provided at the lower end of the positioning plate (27).

8. The rapid pressing device for fabricating SiC power modules according to claim 7, characterized in that: The positioning plate (27) is provided with multiple vertical slots (30) and a coupling rod (31) that passes through all the vertical slots (30). Multiple rotatable guide wheels (32) are installed on the coupling rod (31). The number of guide wheels (32) on the coupling rod (31) is the same as the number of vertical slots (30). The guide wheels (32) on the coupling rod (31) are located in all the vertical slots (30), and part of the wheel body of the guide wheel (32) protrudes from the positioning surface (28).

9. The rapid pressing device for fabricating SiC power modules according to claim 8, characterized in that: The pressing outer box (1) is composed of an upper box plate (20), a left box plate (21), a right box plate (22), a front box plate (23) and a rear box plate (24). The front box plate (23) and the rear box plate (24) are provided with observation windows (25), and the bottom of the front box plate (23) and the rear box plate (24) are provided with fixed connecting plates (26).

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