Capacitor explosion-proof housing

Abstract

The utility model discloses a capacitor explosion-proof housing, which relates to the technical field of capacitor explosion-proof housings and comprises a top cover, the bottom of the top cover is fixedly connected with a spring, and the bottom of the spring is fixedly connected with a turntable. According to the utility model, the capacitor body is placed in the side plate from the upper part of the side plate, the bottom part of the capacitor body is enabled to fall above the base, the effect of limiting the bottom part of the capacitor body is achieved, and the inner side of the top cover is rotated outside the top of the side plate, so that the top cover is pressed downwards, the spring moves downwards, and the spring drives the turntable to rotate; the rotating shaft rotates relative to the limiting cylinder, the effect that rotation of the rotating disc and the top cover is not affected when the limiting cylinder moves downwards is achieved, the limiting cylinder moves to the top of the capacitor body and extrudes the capacitor body under the elastic force effect of the spring, and the effect of limiting the upper end of the capacitor body is achieved. And the effect of fixing the capacitor body in the explosion-proof shell is achieved.

Description

Technical Field

[0001] This utility model relates to the field of capacitor explosion-proof housing technology, specifically to a capacitor explosion-proof housing. Background Technology

[0002] Capacitors play an important role in circuits such as tuning, bypassing, coupling, and filtering. They are used in the tuning circuit of transistor radios, as well as in the coupling and bypass circuits of color televisions. Capacitors are components that store electrical charge and energy. A conductor surrounded by another conductor, or a system of conductors in which all the electric field lines emanating from one conductor terminate in another conductor, is called a capacitor.

[0003] A search revealed a Chinese patent with authorization number CN213752388U, which discloses an explosion-proof housing for an electrolytic capacitor. The housing includes an electrolytic capacitor body with pins disposed on its bottom surface; and an explosion-proof housing disposed on the outside of the electrolytic capacitor body. The explosion-proof housing is sealed to the edge of the electrolytic capacitor body, and a space exists between the explosion-proof housing and the electrolytic capacitor body, allowing the housing to split open from the explosion-proof grooves on both sides. This prevents obstruction when the housing bursts, thereby improving the explosion-proof effect of the device.

[0004] The aforementioned patent has the following shortcomings regarding the explosion-proof casing for an electrolytic capacitor: While explosion-proof grooves are provided on both sides of the casing to prevent obstruction when the casing bursts, no limit is provided for the capacitor body. This causes the capacitor to wobble relative to the casing inside, making it prone to friction between the capacitor and the inner wall of the casing during transportation, which can cause minor damage to the capacitor body. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a capacitor explosion-proof housing to solve the technical problem that the explosion-proof housing does not have a limiting function for the capacitor body.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a capacitor explosion-proof housing, including a top cover, a spring fixedly connected to the bottom of the top cover, a turntable fixedly connected to the bottom of the spring, a rotating shaft fixedly connected internally between the turntables, a limiting cylinder fixedly connected to the bottom of the rotating shaft, and the limiting cylinder and the turntables being movably connected via the rotating shaft, a capacitor body movably connected to the bottom of the limiting cylinder, a base movably connected to the bottom of the capacitor body, a support column fixedly connected to the bottom of the base, a base plate fixedly connected to the bottom of the support column, an explosion-proof groove formed at the bottom of the base plate, and a side plate fixedly connected to the upper end of the base plate.

[0007] By adopting the above technical solution, this utility model places the capacitor body inside the side plate from above, so that the bottom of the capacitor body rests on the base, thereby limiting the bottom of the capacitor body. Then, by rotating the inner side of the top cover on the outer side of the top of the side plate, the top cover is pressed down, causing the spring to move downward. The spring drives the turntable to rotate, and the rotating shaft rotates relative to the limiting cylinder. This achieves the effect that the downward movement of the limiting cylinder does not affect the rotation of the turntable and the top cover. The limiting cylinder moves to the top of the capacitor body and, under the elastic force of the spring, squeezes the capacitor body, thereby limiting the upper end of the capacitor body and fixing the capacitor body inside the explosion-proof shell.

[0008] Furthermore, a groove is provided at the upper end of the base plate, and the radius of the groove is larger than the radius of the base.

[0009] By adopting the above technical solution, the bottom of the base plate is subjected to uniform force when it is squeezed, which makes it easier for the explosion-proof groove at the bottom of the capacitor body to crack open when it is about to explode, so as to release the high-pressure gas inside the explosion-proof shell and prevent the explosion.

[0010] Furthermore, a sealing ring is fixedly connected to the upper end of the side plate, and the sealing ring is made of rubber.

[0011] By adopting the above technical solution, the bottom of the top cover and the top of the side plate compress the sealing ring, thereby sealing the explosion-proof shell and better playing the role of explosion protection.

[0012] Furthermore, both the base and the limiting cylinder have cavities on their inner sides that cooperate with the capacitor body, and the cross-section of the cavity is the same size as the cross-section of the capacitor body.

[0013] By adopting the above technical solution, it is easy to limit the top and bottom of the capacitor body, thereby fixing the capacitor body inside the explosion-proof shell.

[0014] Furthermore, the turntable has a cavity inside that matches the rotating shaft, and the cavity has a circular cross-section.

[0015] By adopting the above technical solution, the turntable can rotate on the outside of the rotating shaft, so that the rotation of the top cover does not affect the movement of the turntable and the limiting cylinder.

[0016] Furthermore, the side plate has a thread on its top outer side, and the top cover has a thread on its inner side that matches the top outer side of the side plate.

[0017] By adopting the above technical solution, it is easy to rotate the top cover on the outside of the side plate, thereby sealing the explosion-proof shell.

[0018] In summary, the present invention has the following beneficial effects: By placing the capacitor body inside the side plate from above, the bottom of the capacitor body rests on the base, thereby limiting the bottom of the capacitor body. Furthermore, by rotating the inner side of the top cover on the outer side of the side plate, the top cover is pressed down, causing the spring to move downwards. The spring drives the turntable to rotate, and the rotating shaft rotates relative to the limiting cylinder. This ensures that the downward movement of the limiting cylinder does not affect the rotation of the turntable and the top cover. The limiting cylinder moves to the top of the capacitor body and, under the elastic force of the spring, squeezes the capacitor body, thus limiting the upper end of the capacitor body and fixing it inside the explosion-proof shell. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of the present invention;

[0022] Figure 4 This is an enlarged view of a portion of the structure of this utility model;

[0023] Figure 5 This is an enlarged view of part of the structure of this utility model.

[0024] In the diagram: 1. Top cover; 2. Sealing ring; 3. Side plate; 4. Base plate; 5. Spring; 6. Rotating shaft; 7. Turntable; 8. Limiting cylinder; 9. Capacitor body; 10. Base; 11. Groove; 12. Support column; 13. Explosion-proof groove. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The embodiments of this utility model will be described below based on its overall structure.

[0027] An explosion-proof enclosure for a capacitor, such as Figure 1-5As shown, the device includes a top cover 1, a spring 5 fixedly connected to the bottom of the top cover 1, a turntable 7 fixedly connected to the bottom of the spring 5, a rotating shaft 6 fixedly connected inside the turntable 7, a limiting cylinder 8 fixedly connected to the bottom of the rotating shaft 6, and the limiting cylinder 8 and the turntable 7 are movably connected through the rotating shaft 6. A capacitor body 9 is movably connected to the bottom of the limiting cylinder 8, a base 10 is movably connected to the bottom of the capacitor body 9, a support column 12 is fixedly connected to the bottom of the base 10, a base plate 4 is fixedly connected to the bottom of the support column 12, an explosion-proof groove 13 is provided at the bottom of the base plate 4, and a side plate 3 is fixedly connected to the upper end of the base plate 4. This utility model allows the capacitor body 9 to be inserted into the side plate 3 from above. The capacitor body 9 is positioned so that its bottom rests above the base 10, thus limiting the bottom of the capacitor body 9. Then, by rotating the inner side of the top cover 1 on the outer side of the top of the side plate 3, the top cover 1 is pressed down, causing the spring 5 to move downward. The spring drives the turntable 7 to rotate, and the rotating shaft 6 rotates relative to the limiting cylinder 8. This ensures that the downward movement of the limiting cylinder 8 does not affect the rotation of the turntable 7 and the top cover 1. The limiting cylinder 8 moves to the top of the capacitor body 9 and, under the elastic force of the spring 5, squeezes the capacitor body 9, thus limiting the upper end of the capacitor body 9 and fixing the capacitor body 9 inside the explosion-proof shell.

[0028] Please see Figure 4 The bottom plate 4 has a groove 11 at its upper end, and the radius of the groove 11 is larger than the radius of the base 10. By setting the above structure, the bottom of the bottom plate 4 is subjected to uniform force when it is squeezed, which makes it easier for the explosion-proof groove 13 at the bottom of the capacitor body 9 to crack when it is about to explode, so as to release the high pressure gas inside the explosion-proof shell and prevent the explosion.

[0029] Please see Figure 2 A sealing ring 2 is fixedly connected to the upper end of the side plate 3, and the sealing ring 2 is made of rubber. By setting the above structure, the bottom of the top cover 1 and the top of the side plate 3 squeeze the sealing ring 2, so that the explosion-proof shell is sealed and plays a better role in explosion protection.

[0030] Please see Figure 3 Both the base 10 and the limiting cylinder 8 have cavities on their inner sides that cooperate with the capacitor body 9, and the cross-section of the cavity is the same size as the cross-section of the capacitor body 9. By setting the above structure, this utility model can facilitate the limiting of the top and bottom of the capacitor body 9, thereby fixing the capacitor body 9 inside the explosion-proof shell.

[0031] Please see Figure 3 The turntable 7 has a cavity inside that matches the rotating shaft 6, and the cavity has a circular cross-section. By setting the above structure, this utility model facilitates the rotation of the turntable 7 outside the rotating shaft 6, so that the rotation of the top cover 1 does not affect the movement of the turntable 7 and the limiting cylinder 8.

[0032] Please see Figure 2 The side plate 3 has a thread on the top outer side, and the top cover 1 has a thread on the inner side that matches the top outer side of the side plate 3. By setting the above structure, this utility model makes it easy to rotate the top cover 1 on the outside of the side plate 3, thereby sealing the explosion-proof shell.

[0033] The working principle of this utility model is as follows: In use, the capacitor body 9 is placed inside the side plate 3 from above, so that the bottom of the capacitor body 9 rests on the base 10, which limits the bottom of the capacitor body 9. Then, the inner side of the top cover 1 is rotated on the outer side of the top of the side plate 3, thereby moving the top cover 1 downward. This causes the top cover 1 to drive the spring 5 downward, and the spring 5 drives the turntable 7 to rotate on the outer side of the rotating shaft 6. The rotating shaft 6 rotates relative to the bottom limiting cylinder 8, thereby achieving the effect of moving the limiting cylinder 8 downward until the inside of the limiting cylinder 8 contacts the top of the capacitor body 9. At this time, the top cover 1 continues to move downward. The downward movement compresses the spring 5. When the top cover 1 can no longer rotate, the top cover 1 squeezes the sealing ring 2, achieving the effect of sealing the top of the explosion-proof shell. When the capacitor body 9 reaches the critical state of explosion, the capacitor body 9 expands and squeezes the base, thereby causing the base 10 to squeeze the support column 12. The support column 12 squeezes the bottom plate 4. The bottom plate 4 has a groove 11 at the upper end, so that the bottom plate 4 is subjected to uniform force. At this time, the explosion-proof groove 13 at the bottom of the bottom plate 4 cracks under the pressure, allowing the gas that has expanded inside the capacitor body 9 to be discharged from the explosion-proof groove 13, thereby achieving the effect of explosion prevention.

[0034] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A capacitor explosion-proof housing comprising a top cover (1), characterized in that: The top cover (1) bottom fixedly connected with spring (5), the spring (5) bottom fixedly connected with rotating disc (7), the rotating disc (7) between the inside fixedly connected with rotating shaft (6), the rotating shaft (6) bottom fixedly connected with limit cylinder (8), and limit cylinder (8) and rotating disc (7) between through rotating shaft (6) movably connected, the limit cylinder (8) bottom movably connected with capacitor body (9), the capacitor body (9) bottom movably connected with base (10), the base (10) bottom fixedly connected with support column (12), the support column (12) bottom fixedly connected with bottom plate (4), the bottom plate (4) bottom is set with explosion-proof groove (13), the bottom plate (4) upper end fixedly connected with side plate (3).

2. A capacitor explosion-proof housing according to claim 1, characterized in that: The bottom plate (4) upper end is set with recess (11), and the recess (11) circumferential radius is greater than the radius of base (10).

3. A vented capacitor housing as defined in claim 1, wherein: The side plate (3) upper end fixedly connected with sealing ring (2), and the material of sealing ring (2) is rubber.

4. The explosion-proof housing for a capacitor of claim 1, wherein: The base (10) and limit cylinder (8) inside are all set with the cavity that is matched with capacitor body (9), and the cavity section and capacitor body (9) section size are same.

5. The explosion-proof housing for a capacitor of claim 1, wherein: The rotating disc (7) inside is set with the cavity that is matched with rotating shaft (6), and the cavity section is circular.

6. A vented capacitor housing as described in claim 1, wherein: The side plate (3) top outside is set with thread, and the inside of top cover (1) is set with the thread that is matched with side plate (3) top outside. The side plate (3) top outside is set with thread, and the inside of top cover (1) is set with the thread that is matched with side plate (3) top outside.

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