Photovoltaic inverter inductance box processing die

By improving the structural design of the photovoltaic inverter inductor box mold, and adopting the coordinated cooperation of the fixed mold ejector plate, moving mold frame, cavity, core, slider seat and slider insert, the problems of low demolding efficiency and insufficient precision of traditional molds are solved, realizing high-precision molding and convenient demolding, which is suitable for the complex structure of photovoltaic inverter inductor boxes.

CN223997287UActive Publication Date: 2026-03-17NINGBO XIANPING DIE CASTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Traditional photovoltaic inverter inductor box molds have low demolding efficiency and are prone to damaging the surface of the casting, making it difficult to meet the requirements of high-precision molding.

Method used

The system employs a coordinated structure consisting of a fixed mold ejector plate, a moving mold frame, a cavity, a core, a slider seat, and slider inserts, combined with a water jacket and a guiding device, to achieve high-precision molding and convenient demolding.

Benefits of technology

It improves the molding accuracy and demolding efficiency of photovoltaic inverter inductor boxes, protects the surface of castings, and is suitable for long-term stable operation in harsh environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a machining die for an inductance box of a photovoltaic inverter, and relates to the technical field of die-casting aluminum dies. Comprising a movable mold frame and a fixed mold frame which can be relatively uniform, a cavity is formed in the bottom of the fixed mold frame, a mold core is installed in the center of the top of the movable mold frame, the cavity and the mold core form a cavity structure of the inductance box after mold closing, movable grooves are formed in the two sides of the top of the movable mold frame, sliding block bases are arranged in the movable grooves in a sliding mode, and notches matched with the movable grooves are formed in the two sides of the mold core. A sliding block insert capable of sliding into the notch to form the side wall structure of the inductance box is installed at the end, facing the mold core, of the sliding block base. According to the photovoltaic inverter inductance box machining mold, through cooperation of the mold cavity, the fixed mold ejector plate mold core, the sliding block base, the sliding block insert and the like, high-precision forming of an inductance box can be guaranteed, and the complex structure requirement of the photovoltaic inverter inductance box is met.
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Description

Technical Field

[0001] This utility model relates to the field of die-casting aluminum mold technology, specifically a processing mold for photovoltaic inverter inductor boxes. Background Technology

[0002] The inductor box of a photovoltaic inverter is a core component that houses inductor components and provides electrical isolation and heat dissipation. Its design must take into account sealing, heat dissipation efficiency, and ease of maintenance. By integrating multiple inductors into a die-cast aluminum shell, the volume can be reduced, the space layout optimized, and the overall heat dissipation performance improved to meet the long-term stable operation requirements of photovoltaic systems in harsh environments such as deserts and coastal areas.

[0003] Photovoltaic inverter inductor boxes are usually formed by die casting. Inductor boxes typically have side holes, internal cavities, and thin walls. Traditional molds use unidirectional core pulling or manual disassembly of inserts, resulting in low demolding efficiency and easy damage to the surface of the casting. Summary of the Invention

[0004] This invention provides a processing mold for the inductor box of a photovoltaic inverter to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic inverter inductor box processing mold, including a fixed mold ejector pin fixing plate, a movable mold frame that can be relatively uniform, and a fixed mold frame. The bottom of the fixed mold frame is provided with a cavity, and a core is installed at the top center of the movable mold frame. After the cavity and the core are closed, they form the cavity structure of the inductor box. Movable grooves are opened on both sides of the top of the movable mold frame. A slider seat is slidably provided in the movable groove. Notches that cooperate with the movable grooves are opened on both sides of the core. A slider insert that can slide into the notch to form the side wall structure of the inductor box is installed at the end of the slider seat facing the core.

[0006] Furthermore, the fixed mold ejector plate is fixed above the fixed mold ejector plate by bolts, the fixed mold ejector plate is embedded inside the fixed mold frame, and a pressure block is installed on the top of the fixed mold frame to limit the fixed mold ejector plate.

[0007] Furthermore, a material cylinder is embedded inside the fixed mold frame, and a flow divider cone that connects with the core is installed at the bottom of the material cylinder. A water jacket is fitted around the outside of the material cylinder.

[0008] Furthermore, a sliding groove is provided on the top inner wall of the movable groove, and a wear-resistant block for the slider seat is installed at the bottom of the sliding groove.

[0009] Furthermore, the front and rear bottom sides of the slider seat are integrally connected with protruding strips, and the top inner wall of the movable groove is fitted with pressure strips to limit the protruding strips.

[0010] Furthermore, two slider blocks are installed on both sides of the moving mold frame, and a cylinder seat for mounting the hydraulic cylinder is connected to the two slider blocks located on one side of the moving mold frame.

[0011] Furthermore, mold feet are installed on both sides of the bottom of the moving mold frame.

[0012] Furthermore, an ejector pin fixing plate is provided between the two mold feet, and an upper ejector pin plate is movably provided above the top of the ejector pin fixing plate. An ejector pin is installed on the top of the upper ejector pin plate, and a support column that can movably pass through the upper ejector pin plate and is connected to the bottom of the moving mold frame is fixedly connected to the top of the ejector pin fixing plate. A support block connected to the bottom of the moving mold frame is also installed on the ejector pin fixing plate.

[0013] Furthermore, a top plate guide sleeve is installed on the top of the ejector pin fixing plate, and a top plate guide post is installed on the upper ejector pin plate that slides in cooperation with the top plate guide sleeve.

[0014] Furthermore, guide holes are provided at the top four corners of the moving mold frame, and guide sleeves are installed in the guide holes. Guide posts that slide with the guide sleeves are installed at the bottom four corners of the fixed mold frame.

[0015] Compared with the prior art, this utility model provides a processing mold for photovoltaic inverter inductor boxes, which has the following beneficial effects: the processing mold for photovoltaic inverter inductor boxes, through the coordinated cooperation of the cavity, fixed mold ejector plate, core, slider seat, slider insert, etc., can ensure the high-precision forming of the inductor box and meet the complex structural requirements of photovoltaic inverter inductor boxes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0019] In the diagram: 1. Fixed mold ejector pin fixing plate; 2. Fixed mold ejector pin plate; 3. Fixed mold frame; 4. Pressure block; 5. Cavity; 6. Moving mold frame; 7. Core; 8. Water jacket; 9. Barrel; 10. Diverter cone; 11. Slider wear-resistant block; 12. Slider seat; 13. Slider insert; 14. Slider stop; 15. Pressure strip; 16. Hydraulic cylinder seat; 17. Ejector plate guide post; 18. Ejector plate guide sleeve; 19. Guide post; 20. Guide sleeve; 21. Mold foot; 22. Upper ejector plate; 23. Support block; 24. Support post; 25. Ejector pin fixing plate; 26. Ejector pin; 27. Movable groove; 28. Notch. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3 This utility model discloses a processing mold for an inductor box of a photovoltaic inverter, including a fixed mold ejector plate 1, a movable mold frame 6 and a fixed mold frame 3 that can be relatively uniform. The bottom of the fixed mold frame 3 is provided with a cavity 5. The top center of the movable mold frame 6 is installed with a core 7. After the cavity 5 and the core 7 are closed, they form the cavity structure of the inductor box. Movable grooves 27 are provided on both sides of the top of the movable mold frame 6. A slider seat 12 is slidably provided in the movable groove 27. Notches 28 that cooperate with the movable grooves 27 are provided on both sides of the core 7. A slider insert 13 that can slide into the notch 28 to form the side wall structure of the inductor box is installed at the end of the slider seat 12 facing the core 7.

[0022] The fixed mold ejector plate 1 is fixed above the fixed mold ejector plate 2 by bolts. The fixed mold ejector plate 2 is embedded inside the fixed mold frame 3. The top of the fixed mold frame 3 is equipped with a pressure block 4 to limit the fixed mold ejector plate 1.

[0023] The photovoltaic inverter inductor box has a heat sink structure on its side, and the slider insert 13 can work with the core 7 and cavity 5 to form the side wall structure of the inductor box.

[0024] Specifically, a material cylinder 9 is embedded inside the fixed mold frame 3, a flow divider cone 10 that docks with the core 7 is installed at the bottom of the material cylinder 9, and a water jacket 8 is fitted around the outside of the material cylinder 9.

[0025] In this embodiment, the front end of the core 7 is connected to the flow divider cone 10, and the flow divider cone 10 introduces molten aluminum into the cavity 5 through the material cylinder 9.

[0026] Specifically, the top inner wall of the movable groove 27 is provided with a sliding groove, and the bottom of the slider seat 12 is equipped with a slider wear-resistant block 11 located in the sliding groove.

[0027] In this implementation plan, cemented carbide material is used, which significantly reduces frictional loss during slider movement and extends the service life of the mold.

[0028] Specifically, the front and rear bottom sides of the slider seat 12 are integrally connected with protrusions, and the top inner wall of the movable groove 27 is equipped with a pressure strip 15 to limit the protrusions.

[0029] In this embodiment, the pressure strip 15 is generally L-shaped. The pressure strip 15 can press against the protrusion on the slider seat 12 to limit the slider seat 12 and prevent loosening or displacement of the slider seat 12 and slider insert 13 due to frequent movement.

[0030] Specifically, two slider blocks 14 are installed on both sides of the moving mold frame 6, and a cylinder seat 16 for installing a hydraulic cylinder is connected to the two slider blocks 14 located on one side of the moving mold frame 6.

[0031] In this embodiment, the slider seat 12 is generally L-shaped, and the output shaft of the oil cylinder passes through the oil cylinder seat 16 and is connected to the slider seat 12 to drive the slider seat 12 and the slider insert 13 to move.

[0032] Specifically, mold feet 21 are installed on both sides of the bottom of the moving mold frame 6.

[0033] An ejector pin fixing plate 25 is provided between the two mold feet 21. An upper ejector pin plate 22 is movably provided above the top of the ejector pin fixing plate 25. An ejector pin 26 is installed on the top of the upper ejector pin plate 22. A support column 24 that can movably pass through the upper ejector pin plate 22 and is connected to the bottom of the moving mold frame 6 is fixedly connected to the top of the ejector pin fixing plate 25. A support block 23 connected to the bottom of the moving mold frame 6 is also installed on the ejector pin fixing plate 25.

[0034] The top of the ejector pin fixing plate 25 is equipped with a top plate guide sleeve 18, and the upper ejector pin plate 22 is equipped with a top plate guide post 17 that slides with the top plate guide sleeve 18.

[0035] In this embodiment, the ejector pin 26 can move through the moving mold frame 6, and the core 7 has an ejector pin hole through which the ejector pin 26 can pass. The upper ejector plate 22 drives the ejector pin 26 to move upward, which can eject the formed inductor box.

[0036] The upper ejector plate 22 is in the shape of an I-beam, with clearance openings on both sides. The support block 23 passes through the clearance openings on both sides of the I-beam-shaped upper ejector plate 22.

[0037] Specifically, the four top corners of the moving mold frame 6 are provided with guide holes, and guide sleeves 20 are installed in the guide holes. The four bottom corners of the fixed mold frame 3 are provided with guide posts 19 that slide with the guide sleeves 20.

[0038] In this embodiment, the moving mold frame 6 and the fixed mold frame 3 move relative to each other during mold closing or demolding through the cooperation of the guide sleeve 20 and the guide post 19.

[0039] In summary, the processing mold for the photovoltaic inverter inductor box, through the coordinated operation of the cavity 5, the fixed mold ejector plate 2, the core 7, the slider seat 12, and the slider insert 13, can ensure the high-precision forming of the inductor box and meet the complex structural requirements of the photovoltaic inverter inductor box.

[0040] 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 photovoltaic inverter inductance box processing mold, comprising a fixed mold ejector pin fixing plate (1), a movable mold frame (6) that can be uniformly relative, and a fixed mold frame (3), characterized in that: The bottom of the fixed mold frame (3) is provided with a cavity (5), the top center of the movable mold frame (6) is provided with a core (7), the cavity (5) and the core (7) form a cavity structure of the inductance box after clamping, the movable mold frame (6) is provided with a movable slot (27) on both sides of the top, the movable slot (27) is provided with a slider block (12) which is slidably arranged, the core (7) is provided with a notch (28) on both sides, and the slider block (12) is provided with a slider insert block (13) which can be slid into the notch (28) to form a side wall structure of the inductance box.

2. A photovoltaic inverter inductance box processing mold according to claim 1, characterized in that: The fixed mold pin fixing plate (1) is fixed above the fixed mold pin plate (2) through bolts, the fixed mold pin plate (2) is embedded in the fixed mold frame (3), and the top of the fixed mold frame (3) is provided with a pressing block (4) for limiting the fixed mold pin fixing plate (1).

3. The photovoltaic inverter inductance box processing mold according to claim 1, characterized in that: The inside of the fixed mold frame (3) is embedded with a barrel (9), the bottom of the barrel (9) is provided with a flow divider cone (10) which is connected with the core (7), and the outside of the barrel (9) is provided with a water jacket (8).

4. The photovoltaic inverter inductance box processing mold according to claim 1, characterized in that: The top inner wall of the movable slot (27) is provided with a sliding groove, and the bottom of the slider block (12) is provided with a slider wear block (11) located in the sliding groove.

5. The photovoltaic inverter inductance box processing mold according to claim 1, characterized in that: The front side and the rear side of the slider block (12) are integrally connected with protrusions, and the top inner wall of the movable slot (27) is provided with a pressing strip (15) for limiting the protrusions.

6. The photovoltaic inverter inductance box processing mold according to claim 1, characterized in that: The movable mold frame (6) is provided with two slider blocks (14) on both sides, and the two slider blocks (14) on one side of the movable mold frame (6) are connected with an oil cylinder seat (16) for installing an oil cylinder.

7. The photovoltaic inverter inductance box processing mold according to claim 1, characterized in that: The bottom of the movable mold frame (6) is provided with a mold foot (21) on both sides.

8. A photovoltaic inverter inductance box processing mold according to claim 7, characterized in that: A pin fixing plate (25) is arranged between the two mold feet (21), a top pin plate (22) is movably arranged above the top of the pin fixing plate (25), a pin (26) is arranged on the top of the top pin plate (22), a support column (24) is movably arranged and connected with the bottom of the movable mold frame (6) through the top pin plate (22), and a support block (23) is arranged on the pin fixing plate (25) and connected with the bottom of the movable mold frame (6).

9. A photovoltaic inverter inductance box processing mold according to claim 8, characterized in that: The top of the pin fixing plate (25) is provided with a top plate guide sleeve (18), and the top pin plate (22) is provided with a top plate guide column (17) which is slidably connected with the top plate guide sleeve (18).

10. The photovoltaic inverter inductance box processing mold according to claim 1, characterized in that: The movable mold frame (6) is provided with a guide hole in the top corner, the guide hole is provided with a guide sleeve (20), and the bottom of the fixed mold frame (3) is provided with a guide column (19) which is slidably connected with the guide sleeve (20).