High-voltage cowhorn type aluminum electrolytic capacitor

Abstract

This utility model belongs to the technical field of horn-shaped capacitors, specifically a high-voltage horn-shaped aluminum electrolytic capacitor, including a capacitor body. The outer wall of the capacitor body is uniformly provided with multiple rows of inclined slots. Multiple metal reinforcing frames are provided on the outer side of the capacitor body. Each reinforcing frame includes multiple reinforcing plates and a heat dissipation plate fixed to one side wall of the reinforcing plate. In this utility model, the reinforcing plates are attached to the outer wall of the capacitor, and multiple reinforcing plates are connected in series via connecting rings. After being connected in series, the reinforcing plates form a whole, resulting in strong structural stability and enhanced overall capacitor structural strength. The reinforcing plates are close to the capacitor, maximizing space utilization and simplifying the structure. By fixing a heat dissipation plate, also made of metal, to the outside of the reinforcing plates, the structural strength and external protection of the capacitor are further enhanced. Simultaneously, the heat dissipation plate increases the contact area between the capacitor body and the heat dissipation airflow, improving heat dissipation compared to the poor thermal conductivity of traditional metal supports.

Description

Technical Field

[0001] This utility model belongs to the technical field of horn-shaped capacitors, specifically relating to high-voltage horn-shaped aluminum electrolytic capacitors. Background Technology

[0002] Aluminum electrolytic capacitors are widely used in power electronic equipment, especially high-voltage horn-shaped products that need to withstand harsh conditions such as high current and high temperature. Currently, traditional methods for enhancing the structural strength of capacitors typically involve external metal clamps or integral encapsulation, which easily leads to the following problems: external brackets are usually not attached to the capacitor, resulting in a large outward extension volume, which is not conducive to high-density circuit design; moreover, the contact area between the metal clamp and the capacitor body is limited, resulting in low heat conduction efficiency; currently, many external brackets are fixed by welding or bolts, leading to difficult maintenance and easy damage to the capacitor during replacement; in addition, the mechanical stability is relatively poor, and the bracket is prone to loosening under vibration, leading to structural failure. Therefore, a high-voltage horn-shaped aluminum electrolytic capacitor that enhances structural strength, improves heat dissipation, and is easy to disassemble and assemble is needed. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, this utility model provides a high-voltage horn-shaped aluminum electrolytic capacitor, which features enhanced structural strength and heat dissipation, and is easy to assemble and disassemble.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage horn-shaped aluminum electrolytic capacitor, comprising a capacitor body, wherein multiple rows of inclined slots are uniformly arranged circumferentially on the outer wall of the capacitor body, and multiple metal reinforcing frames are provided on the outer side of the capacitor body, each reinforcing frame including multiple reinforcing plates and a heat dissipation plate fixed to one side wall of the reinforcing plate; the reinforcing plate is attached to the outer wall of the capacitor body, and multiple clamping plates are fixed to the other side wall of the reinforcing plate, the clamping plates being inserted into the inner side of the inclined slots to restrict the reinforcing plates from sliding down; one side wall of the reinforcing plate is provided with a rotating groove, and a fixing rod is fixedly connected to the inner side of the rotating groove, one end of the clamping plate being movably sleeved on the fixing rod through a through hole; the bottom center of the clamping plate is fixedly connected to the inner wall of the rotating groove through an elastic plate for elastically supporting the upward rotation of the elastic plate; a connecting ring is fixedly connected to the bottom of the reinforcing plate, and the multiple reinforcing plates are connected through the connecting ring to restrict the reinforcing plates from moving outward.

[0005] As a preferred technical solution for the high-voltage horn-shaped aluminum electrolytic capacitor of this utility model, a pad is inserted between the connecting ring and the capacitor body, and the pad has an acute-angled triangular structure.

[0006] As a preferred technical solution for the high-voltage horn-shaped aluminum electrolytic capacitor of this utility model, the middle part of the connecting ring is provided with a positioning circular plate, the top of the positioning circular plate abuts against the bottom surface of the capacitor body; the middle part of the bottom surface of the positioning circular plate is provided with a threaded groove, the outer wall of the positioning circular plate is provided with a slot that passes through and connects to the threaded groove, and one end of the pad extends through the slot to the inner side of the threaded groove.

[0007] As a preferred technical solution for the high-voltage horn-shaped aluminum electrolytic capacitor of this utility model, a screw is threadedly connected to the inner side of the threaded groove, a rotating plate is fixed at the bottom of the screw, and the top of the screw abuts against the end of the pad to press and lock the pad.

[0008] As a preferred technical solution for the high-voltage horn-shaped aluminum electrolytic capacitor of this utility model, a support plate is fixed on the inner top surface of the threaded groove, and the support plate is located above the end of the pad.

[0009] As a preferred technical solution for the high-voltage horn-shaped aluminum electrolytic capacitor of this utility model, the outer wall of the rotating plate is provided with multiple grooves for manually turning the screw.

[0010] As a preferred technical solution for the high-voltage horn-shaped aluminum electrolytic capacitor of this utility model, the top surface of the card plate abuts against the top surface of the inner wall of the rotating groove.

[0011] As a preferred technical solution for the high-voltage horn-shaped aluminum electrolytic capacitor of this utility model, multiple pads and slots are provided, which are evenly distributed along the circumference of the positioning circular plate, and the pads are made of elastic material.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) This solution uses a capacitor body, a reinforcing frame and a connecting ring. Multiple inclined slots are set on the outer wall of the capacitor body. The reinforcing plate of the reinforcing frame is inserted into the inside of the inclined slot through the card plate. The card plate is locked by the inclined slot, so that the reinforcing plate is attached to the outer wall of the capacitor. Multiple reinforcing plates are connected in series through the connecting ring. The reinforcing plates are made of high-strength metal material to enhance the overall strength of the capacitor structure. At the same time, the reinforcing plates form a whole after being connected in series, which has strong structural stability. Multiple reinforcing plates are evenly distributed to disperse mechanical stress and improve vibration resistance. Compared with the complex structure of traditional external brackets, the reinforcing plates of this solution are close to the capacitor, the structure is simple, and there is no need to use bolts or screws for fixing, which occupies less space. (2) This solution uses a heat sink plate fixed on the outside of the reinforcing plate. It also uses metal material to further enhance the strength and external protection of the structural capacitor. At the same time, the heat sink plate can enhance the contact area between the capacitor body and the heat dissipation airflow. Compared with the poor heat conduction effect of traditional metal brackets, it enhances the heat dissipation effect.

[0013] (3) This solution uses a pad and a positioning plate. The elastic pad fills the gap between the connecting ring and the capacitor, so that the card can be stably inserted into the inside of the inclined slot. At the same time, the elastic pad has strong friction and is not easy to fall off. In addition, the pad is tightened by the bottom screw to further stabilize the pad. When you want to remove the reinforcing frame, loosen the screw and pull out the pad. Then push the reinforcing plate up so that the card is squeezed and retracted into the rotating slot. At this time, the operator rotates the connecting ring to drive the reinforcing plate to rotate, so that the card can leave the inclined slot and fit against the outer wall of the capacitor. Then move the reinforcing plate down to remove it. It is easy to disassemble and assemble without the need for additional tools and is not easy to damage the capacitor. Attached Figure Description

[0014] 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: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional schematic diagram of the capacitor body of this utility model; Figure 3 This is a three-dimensional schematic diagram of the reinforcing frame of this utility model; Figure 4 This is a partial cross-sectional view of the reinforcing plate of this utility model; Figure 5 This is a partial sectional view of the pad and positioning circular plate of this utility model.

[0015] In the diagram: 1. Capacitor body; 11. Inclined slot; 2. Reinforcing frame; 21. Reinforcing plate; 211. Rotating groove; 212. Fixing rod; 213. Clamping plate; 214. Elastic plate; 22. Heat sink; 3. Connecting ring; 4. Pad; 5. Positioning round plate; 51. Threaded groove; 52. Support plate; 53. Slot; 54. Screw; 55. Rotating plate; 56. Groove. Detailed Implementation

[0016] 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.

[0017] Example 1 Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model provides the following technical solution: a high-voltage horn-shaped aluminum electrolytic capacitor, including a capacitor body 1. The specific internal structure and operating principle of the capacitor body 1 can refer to the capacitors of the prior art, which are common prior art, so they are not described in detail here. The top is provided with horn-shaped metal pins for connection with external devices. The outer wall of the capacitor body 1 is uniformly provided with multiple rows of inclined slots 11, which are inclined downward. The outer side of the capacitor body 1 is provided with multiple metal reinforcing frames 2, which include multiple reinforcing plates 21 and a heat dissipation plate 22 fixed to one side wall of the reinforcing plate 21. The reinforcing plate 21 and the heat dissipation plate 22 form a T-shaped structure. The reinforcing plate 21 fits against the outer wall of the capacitor body 1, increasing the contact area with the capacitor and reducing the external extension volume. The other side wall of the reinforcing plate 21 is provided with multiple clamping plates 213, which are inserted into the capacitor body 1. Inside the inclined slot 11, when the card plate 213 is raised to its maximum extent, it remains in a downward inclined state, restricting the downward movement of the reinforcing plate 21. A rotating groove 211 is provided on one side wall of the reinforcing plate 21. A fixing rod 212 is fixedly connected to the inner side of the rotating groove 211. One end of the card plate 213 is movably sleeved onto the fixing rod 212 through a through hole, allowing it to rotate around the fixing rod 212. The top surface of the card plate 213 abuts against the top surface of the inner wall of the rotating groove 211, preventing the card plate 213 from being raised excessively and providing support. The bottom center of the card plate 213 is fixedly connected to the inner wall of the rotating groove 211 via an elastic plate 214. This elastic metal plate provides elastic support for the card plate 213 and supports the upward rotation of the elastic plate 214. A connecting ring 3 is fixedly connected to the bottom of the reinforcing plate 21, connecting multiple reinforcing plates 21 to restrict their outward movement, forming a unified whole. Specifically, through the above technical solution, multiple inwardly extending inclined slots 11 are provided on the outer wall of the existing capacitor. A reinforcing plate 21 with a retaining plate 213 is attached to the outer wall of the capacitor. Positioning is achieved through the insertion of the retaining plate 213 into the inclined slots 11, allowing the multiple reinforcing plates 21 connected in series to be fixedly attached to the outside of the capacitor, forming external protection and enhancing structural strength. Simultaneously, the overall structure is simple, closely attached to the capacitor, and occupies little space. Compared to traditional bolt and screw fixing structures, the insertion method of the retaining plate 213 into the slots saves 15%~20% of installation space and does not affect subsequent circuit series connection operations. Furthermore, a heat dissipation plate 22 is fixed to the outside of the reinforcing plate 21, and the reinforcing plate 21 attached to the capacitor... The metal reinforcing frame 2 conducts heat, increases the overall heat dissipation area of ​​the capacitor, and enhances the heat dissipation effect. It directly conducts heat from the capacitor, improving efficiency by more than 30% compared to traditional external heat sinks. During installation, the reinforcing frame 2 is inserted from the bottom of the capacitor. When inserted, the outer wall of the capacitor presses the retaining plate 213 to the inside of the rotating groove 211. Subsequently, rotating the reinforcing plate 21 moves the retaining plate 213 to the inclined groove 11. The retaining plate 213 can then be engaged and inserted into the inside of the inclined groove 11 under the elastic support of the elastic plate 214. During disassembly, the reinforcing plate 21 is pushed up to disengage the retaining plate 213 from the inclined groove 11. Then, the reinforcing plate 21 is rotated and the retaining plate 21 is removed. The overall tool structure is simple, easy to assemble and disassemble, and highly practical.

[0018] Reference Figure 3 As shown, specifically, a pad 4 is inserted between the connecting ring 3 and the capacitor body 1. The pad 4 has an acute-angled triangular structure and is made of elastic material, which has a certain friction force and ensures stable insertion. After the reinforcing plate 21 is attached to the capacitor for installation, the elastic pad 4 is inserted between the capacitor and the connecting ring 3 at the bottom of the reinforcing plate 21. The connecting ring 3 is elastically supported downwards by the elastic support, so that the connecting ring 3 drives the reinforcing plate 21 to move downwards, thereby enabling the clamping plate 213 to be stably and tightly clamped inside the inclined slot 11, enhancing the installation stability.

[0019] Example 2 In another embodiment of this solution, refer to Figure 3 and Figure 5As shown, specifically, a positioning circular plate 5 is provided in the middle of the connecting ring 3. The top of the positioning circular plate 5 abuts against the bottom surface of the capacitor body 1. The diameter of the positioning circular plate 5 is smaller than the inner ring size of the connecting ring 3, making it easy to move the positioning circular plate 5 down and remove it. A threaded groove 51 is provided in the middle of the bottom surface of the positioning circular plate 5. A slot 53 is provided on the outer wall of the positioning circular plate 5 to pass through and connect to the threaded groove 51. One end of the pad 4 extends through the slot 53 to the inner side of the threaded groove 51. The friction between the pad 4 and the slot 53 is enhanced by the elastic material, ensuring a stable insertion. A screw 54 is threadedly connected to the inner side of the threaded groove 51. A rotating plate 55 is fixed at the bottom of the screw 54, and the top of the screw 54 abuts against the end of the pad 4 to press and lock the pad 4, thereby achieving the desired connection. Further fixation of pad 4; a support plate 52 is fixed to the inner top surface of the threaded groove 51. The support plate 52 is located above the end of pad 4 and is used to support pad 4 and prevent it from being squeezed and deformed; pad 4 and slot 53 are provided with multiple slots, which are evenly distributed around the circumference of the positioning circular plate 5; the outer wall of the rotating plate 55 is provided with multiple grooves 56 for manually tightening screw 54 without the need for additional tools, making operation convenient; this solution achieves stable fixation of pad 4 by tightening screw 54, so that pad 4 can be stably supported between capacitor and bottom connecting ring 3 of reinforcing frame 2, thereby improving the fixation stability of reinforcing frame 2. At the same time, the elastic material has a certain buffering performance, buffering vibration and impact, and extending the structural life.

[0020] The working principle and usage process of this utility model are as follows: When installing the reinforcing frame 2, the reinforcing plate 21 of the reinforcing frame 2 is aligned with each row of inclined slots 11 on the outer wall of the capacitor. The connecting ring 3 drives the reinforcing plate 21 to push it up, so that the reinforcing plate 21 fits against the outer wall of the capacitor. At the same time, the slots 213 on the side wall of the reinforcing plate 21 are squeezed and compressed into the inner side of the rotating groove 211. As the reinforcing plate 21 continues to move upward, when each slot 213 is located on one side of the inclined slot 11, the slots 213 rotate under the elastic support of the elastic plate 214, so that the bottom of the slots 213 extends to the inner side of the inclined slot 11. Then, the operator inserts multiple pads 4 evenly between the capacitor and the connecting ring 3. Through the elastic support of the pads 4, the slots 213 move down and stably engage with the inner side of the inclined slot 11, thus achieving stable installation of the reinforcing plate 21. By tightly adhering to the outer wall of the capacitor, the structural strength of the overall capacitor is enhanced. At the same time, the heat can be directly conducted to the heat dissipation plate 22 through the reinforcing plate 21, enhancing the heat dissipation effect. In addition, before inserting the pad 4, the operator can pass the positioning round plate 5 through the middle of the connecting ring 3 and place it against the bottom of the capacitor. When inserting the pad 4, the end of the pad 4 passes through the slot 53 on the positioning round plate 5 and extends to the inside of the threaded groove 51. The operator can further squeeze and fix the pad 4 by screwing the screw 54 into the inside of the threaded groove 51, thereby improving its insertion stability. When disassembling and replacing the reinforcing frame 2, the operator loosens the screw 54 and pulls out the pad 4, which allows the reinforcing plate 21 to be pushed up, causing the clamping plate 213 to disengage from the inclined clamping groove 11 and retract into the inner side of the rotating groove 211. At this time, the operator can rotate the reinforcing plate 21 and pull it down to disassemble, which is convenient for disassembly and assembly.

[0021] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-voltage withstand-voltage horn-shaped aluminum electrolytic capacitor, comprising a capacitor body, characterized in that: The outer wall of the capacitor body is uniformly provided with multiple rows of inclined slots, and the outer side of the capacitor body is provided with multiple metal reinforcing frames, including multiple reinforcing plates and a heat dissipation plate fixed to one side wall of the reinforcing plate. The reinforcing plate is attached to the outer wall of the capacitor body, and multiple retaining plates are provided on the other side wall of the reinforcing plate. The retaining plates are inserted into the inner side of the inclined slot to restrict the reinforcing plate from sliding down. The reinforcing plate has a rotating groove on one side wall, and a fixing rod is fixedly connected to the inner side of the rotating groove. One end of the clamping plate is movably sleeved on the fixing rod through a through hole. The bottom center of the card plate is fixed to the inner wall of the rotating groove via an elastic plate, which is used to elastically support the upward rotation of the elastic plate. The bottom of the reinforcing plate is fixedly connected to a connecting ring, which connects multiple reinforcing plates and restricts their outward movement.

2. The high-voltage withstand horn-shaped aluminum electrolytic capacitor according to claim 1, characterized in that: A pad is inserted between the connecting ring and the capacitor body. The pad has an acute-angled triangular structure.

3. The high-voltage withstand horn-shaped aluminum electrolytic capacitor according to claim 2, characterized in that: The connecting ring has a positioning circular plate in the middle, and the top of the positioning circular plate abuts against the bottom surface of the capacitor body. The bottom surface of the positioning circular plate is provided with a threaded groove in the middle, and the outer wall of the positioning circular plate is provided with a slot that passes through and connects to the threaded groove. One end of the pad extends through the slot to the inside of the threaded groove.

4. The high-voltage horn-shaped aluminum electrolytic capacitor according to claim 3, characterized in that: The inner side of the threaded groove is threaded with a screw rod, the bottom of which is fixed with a rotating plate, and the top of which abuts against the end of the pad plate to press and lock the pad plate.

5. The high-voltage horn-shaped aluminum electrolytic capacitor according to claim 4, characterized in that: A support plate is fixed to the inner top surface of the threaded groove, and the support plate is located above the end of the pad.

6. The high-voltage horn-shaped aluminum electrolytic capacitor according to claim 5, characterized in that: The outer wall of the rotating plate is provided with multiple grooves for manually turning the screw.

7. The high-voltage horn-shaped aluminum electrolytic capacitor according to claim 6, characterized in that: The top surface of the card plate abuts against the top surface of the inner wall of the rotating groove.

8. The high-voltage horn-shaped aluminum electrolytic capacitor according to claim 7, characterized in that: Multiple pads and slots are provided, evenly distributed along the circumference of the positioning circular plate, and the pads are made of elastic material.

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