A capacitor plastic case

By designing a capacitor housing structure that allows for quick disassembly and air cooling, the problems of cumbersome operation and poor heat dissipation are solved, achieving efficient maintenance and reducing heat buildup.

CN224437404UActive Publication Date: 2026-06-30YUYAO ANHONG ELECTRONICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUYAO ANHONG ELECTRONICS
Filing Date
2025-05-28
Publication Date
2026-06-30

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    Figure CN224437404U_ABST
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Abstract

This utility model discloses a capacitor housing, relating to the field of capacitor technology. The utility model includes a lower housing, with an upper housing movably mounted above it. Symmetrically distributed inserts are fixedly mounted at the bottom of the upper housing, and symmetrically distributed slots are provided at the top of the lower housing. One end of each insert is slidably engaged with the inside of a slot. Symmetrically distributed springs are fixedly mounted on the inside of the lower housing, with one end of each spring fixedly connected to a U-shaped block, and one end of each U-shaped block movably engaged with the inside of the insert. Through the cooperation of T-blocks, bolts, inserts, rotating bars, positioning pins, insertion holes, rotating shafts, cams, square slots, U-shaped blocks, and springs, the upper housing can be pulled to remove the inserts for maintenance of the lower housing. This allows for rapid separation of the upper and lower housings without the need for complex tools, significantly reducing the operational threshold for maintenance, greatly shortening equipment downtime for maintenance, and improving equipment maintenance efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, specifically to a capacitor plastic shell. Background Technology

[0002] In modern electronic equipment, power systems, and new energy fields, capacitors, as indispensable electronic components, are widely used in various functional scenarios such as energy storage, filtering, and coupling. The plastic casing of a capacitor not only plays a vital role in protecting internal components from external environmental corrosion and physical damage, but also affects the overall stability and reliability of the capacitor. Currently, common capacitor plastic casings on the market have certain defects in their structural design. Their assembly and disassembly often require multiple tools such as screwdrivers and wrenches, making the operation cumbersome. This not only increases the time cost of inspection and maintenance but also increases the difficulty of operation. Improper operation can easily damage the plastic casing and internal components, making maintenance inconvenient. Moreover, as the working load of the capacitor continues to increase, the heat generated by the internal components gradually increases. However, the heat dissipation performance of traditional plastic casings is poor, lacking an effective heat dissipation structure, leading to heat accumulation, affecting the performance and service life of the capacitor, and even posing safety hazards. To address the above problems, the inventors have proposed a capacitor plastic casing to solve these issues. Utility Model Content

[0003] To solve the above technical problems, the present invention adopts the following technical solution: a capacitor housing, including a lower housing, an upper housing movably mounted above the lower housing, symmetrically distributed inserts fixedly mounted at the bottom of the upper housing, symmetrically distributed slots opened at the top of the lower housing, one end of each insert slidably engaging with the inner side of the slot, symmetrically distributed springs fixedly mounted on the inner side of the lower housing, one end of each spring fixedly connected to a U-shaped block, one end of each U-shaped block movably engaging with the inner side of the insert, symmetrically distributed rotating shafts rotatably mounted at the top of the upper housing, one end of each U-shaped block having a square groove, a cam provided on the inner side of each square groove, the top of each cam fixedly connected to the rotating shaft, a rotating bar fixedly connected to the top of each rotating shaft, a positioning post slidably mounted at one end of each rotating bar, symmetrically distributed insertion holes opened on the top surface of the upper housing, and symmetrically distributed bolts threadedly mounted on the outer side of the lower housing, one end of each bolt threadedly connected to the insert.

[0004] Preferably, one end of the upper housing is rotatably mounted with symmetrically distributed rotating columns, the bottom end of each rotating column is fixedly connected to a fan, the outer side of each rotating column is driven by a belt, and a small motor is fixedly mounted on the top surface of the upper housing, with the top end of one of the rotating columns fixedly connected to the drive end of the small motor.

[0005] Preferably, symmetrically distributed pulleys are fixedly fitted on the outer side of each rotating column, and the opposite end of each pulley is in movable contact with the belt.

[0006] Preferably, the top surface of the upper housing has evenly distributed air inlet slots.

[0007] Preferably, a T-shaped block is fixedly connected to one end of each bolt.

[0008] Preferably, a security ring is fixedly fitted on the top of the lower housing, and the inner wall of the security ring is in contact with the outer surface of the upper housing.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. Through the cooperation of T-blocks, bolts, inserts, rotating bars, positioning pins, insertion holes, rotating shafts, cams, square slots, U-blocks, and springs, the upper housing can be pulled to drive the inserts out for maintenance of the lower housing. The upper and lower housings can be quickly separated without the need for complicated tools, which significantly reduces the operation threshold for inspection and maintenance, greatly shortens the equipment downtime for inspection and maintenance, and improves equipment maintenance efficiency.

[0011] 2. A small motor is started to rotate the rotating column, which drives the fan to rotate and generate air energy. The belt works together to make the two fans rotate synchronously, thereby cooling the components inside the lower housing. The structure is ingenious, economical and practical. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0014] Figure 2 This is a schematic diagram showing the overall structure of this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the upper shell structure of this utility model.

[0016] In the diagram: 1. Lower housing; 11. Upper housing; 12. Insert block; 13. Slot; 14. Spring; 15. U-shaped block; 16. Shaft; 17. Square slot; 18. Cam; 19. Rotating bar; 20. Positioning pin; 21. Insertion hole; 22. Bolt; 23. Rotating pin; 24. Fan; 25. Belt; 26. Small motor; 27. Pulley; 28. Air inlet slot; 29. ​​T-shaped block; 30. Encryption ring. Detailed Implementation

[0017] 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.

[0018] Example: Figure 1-3 As shown, this utility model provides a technical solution: a capacitor housing, including a lower housing 1, an upper housing 11 movably mounted above the lower housing 1, symmetrically distributed inserts 12 fixedly mounted at the bottom end of the upper housing 11, symmetrically distributed slots 13 opened at the top of the lower housing 1, one end of the insert 12 slidingly engaging with the inner side of the slot 13, symmetrically distributed springs 14 fixedly mounted on the inner side of the lower housing 1, one end of each spring 14 fixedly connected to a U-shaped block 15, one end of the U-shaped block 15 movably engaging with the inner side of the insert 12. On the side, symmetrically distributed rotating shafts 16 are rotatably mounted on the top of the upper housing 11. A square groove 17 is opened on one end of each U-shaped block 15. A cam 18 is provided on the inner side of each square groove 17. The top of the cam 18 is fixedly connected to the rotating shaft 16. A rotating bar 19 is fixedly connected to the top of each rotating shaft 16. A positioning post 20 is slidably mounted on one end of each rotating bar 19. Symmetrically distributed insertion holes 21 are opened on the top surface of the upper housing 11. Symmetrically distributed bolts 22 are threaded on the outer side of the lower housing 1. One end of the bolt 22 is threadedly connected to the insertion block 12.

[0019] One end of the upper housing 11 is rotatably mounted with symmetrically distributed rotating columns 23. The bottom end of each rotating column 23 is fixedly connected to a fan 24. The outer side of the rotating column 23 is connected to a belt 25 for transmission. A small motor 26 is fixedly mounted on the top surface of the upper housing 11. The top end of one of the rotating columns 23 is fixedly connected to the drive end of the small motor 26.

[0020] By adopting the above technical solution, the rotating column 23 is rotated by starting the small motor 26. The rotating column 23 drives the fan 24 to rotate and generate wind energy. With the help of the belt 25, the two fans 24 rotate synchronously, thereby cooling the components inside the lower housing 1. The structure is ingenious, economical and practical.

[0021] Symmetrically distributed pulleys 27 are fixedly fitted on the outer side of the rotating column 23, and the opposite end of the pulley 27 is in contact with the belt 25.

[0022] By adopting the above technical solution, the belt 25 is limited by setting pulley 27, thereby improving operational stability.

[0023] The top surface of the upper housing 11 is provided with evenly distributed air intake slots 28.

[0024] By adopting the above technical solution, air circulation is facilitated by setting the air intake slot 28.

[0025] One end of each bolt 22 is fixedly connected to a T-shaped block 29.

[0026] By adopting the above technical solution, the T-block 29 is used to facilitate the rotation of the adjusting bolt 22.

[0027] An encryption ring 30 is fixedly sleeved on the top of the lower housing 1, and the inner wall of the encryption ring 30 is in contact with the outer surface of the upper housing 11.

[0028] By adopting the above technical solution, the sealing between the lower housing 1 and the upper housing 11 is enhanced by setting the encryption ring 30.

[0029] Working principle: First, when the device needs to be disassembled for maintenance, manually rotate the T-block 29 to rotate the bolt 22. The bolt 22 rotates and disengages from the insert block 12. Then rotate the rotating bar 19, which rotates the positioning pin 20. The positioning pin 20 aligns with the insertion hole 21 and is inserted into it, thereby causing the rotating shaft 16 to rotate and drive the cam 18 to rotate in the square groove 17. The rotation of the cam 18 pushes the U-block 15 to move, and the U-block 15 disengages from the insert block 12. The spring 14 is in a stretched state, and then the upper shell can be pulled. The body 11 drives the insertion block 12 to be pulled out for maintenance of the lower housing 1. The upper housing 11 and the lower housing 1 can be quickly separated without the need for complicated tools, which significantly reduces the operation threshold of inspection and maintenance, greatly shortens the equipment downtime for inspection and maintenance, and improves equipment maintenance efficiency. By starting the small motor 26, the rotating column 23 is rotated. The rotating column 23 drives the fan 24 to rotate and generate wind energy. With the help of the belt 25, the two fans 24 rotate synchronously, thereby providing air cooling for the components inside the lower housing 1. The structure is ingenious, economical and practical.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A capacitor housing, comprising a lower housing (1), characterized in that: An upper shell (11) is movably mounted above the lower shell (1). Symmetrically distributed inserts (12) are fixedly mounted at the bottom of the upper shell (11). Symmetrically distributed slots (13) are provided at the top of the lower shell (1). One end of each insert (12) is slidably engaged with the inside of the slot (13). Symmetrically distributed springs (14) are fixedly mounted on the inside of the lower shell (1). One end of each spring (14) is fixedly connected to a U-shaped block (15). One end of each U-shaped block (15) is movably engaged with the inside of the insert (12). Symmetrically distributed springs (14) are rotatably mounted at the top of the upper shell (11). The rotating shaft (16) of the cloth, and one end of the U-shaped block (15) are provided with a square groove (17). The inner side of the square groove (17) is provided with a cam (18). The top end of the cam (18) is fixedly connected to the rotating shaft (16). The top end of the rotating shaft (16) is fixedly connected with a rotating bar (19). One end of the rotating bar (19) is slidably installed with a positioning post (20). The top surface of the upper housing (11) is provided with symmetrically distributed insertion holes (21). The outer side of the lower housing (1) is threaded with symmetrically distributed bolts (22). One end of the bolt (22) is threadedly connected to the insertion block (12).

2. A capacitor housing as described in claim 1, characterized in that, One end of the upper housing (11) is rotatably mounted with symmetrically distributed rotating columns (23). The bottom end of each rotating column (23) is fixedly connected to a fan (24). The outer side of the rotating column (23) is connected to a belt (25). A small motor (26) is fixedly mounted on the top surface of the upper housing (11). The top end of one of the rotating columns (23) is fixedly connected to the drive end of the small motor (26).

3. A capacitor housing as described in claim 2, characterized in that, The outer side of each rotating column (23) is fixedly fitted with symmetrically distributed pulleys (27), and the opposite end of each pulley (27) is in contact with the belt (25).

4. A capacitor housing as described in claim 1, characterized in that, The top surface of the upper housing (11) is provided with evenly distributed air inlet slots (28).

5. A capacitor housing as described in claim 1, characterized in that, One end of each bolt (22) is fixedly connected to a T-shaped block (29).

6. A capacitor housing as described in claim 1, characterized in that, The top of the lower housing (1) is fixedly fitted with an encryption ring (30), and the inner wall of the encryption ring (30) is in contact with the outer surface of the upper housing (11).