Heat dissipation type aluminum electrolytic capacitor
By adopting sleeve, heat dissipation base and heat dissipation ring structure in aluminum electrolytic capacitors, combined with multi-layer heat dissipation plate and hole design, the problem of poor heat dissipation performance of aluminum electrolytic capacitors is solved, achieving more efficient heat dissipation and stability improvement. Avoid short circuit risk and hand protection.
Patent Information
- Application Number
- CN202420098604.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-15
AI Technical Summary
The existing aluminum electrolytic capacitors have poor heat dissipation performance during use, resulting in heat accumulation, affecting stability and life.
A heat dissipation aluminum electrolytic capacitor is designed, using a sleeve, a heat dissipation base and a heat dissipation ring structure. The end of the capacitor and the heat dissipation ring are used to dissipate heat to the arc-shaped side walls through the heat dissipation base, which improves the heat dissipation efficiency, and uses a multi-layer heat dissipation plate and The hole structure accelerates heat conduction and dispersion.
The heat dissipation performance of aluminum electrolytic capacitors is significantly improved, prevents heat accumulation, and enhances the stability and life of the capacitor. At the same time, the risk of short circuit is avoided and hand protection is provided due to the use of sleeves of non-metallic materials.
Smart Images
Figure CN222260814U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of aluminum electrolytic capacitors, and in particular to a heat dissipation type aluminum electrolytic capacitor. Background Art
[0002] At present, aluminum electrolytic capacitors are made of an aluminum cylinder as the negative electrode, which is filled with liquid electrolyte and a curved aluminum strip as the positive electrode. It also needs to be treated with DC voltage to form an oxide film on the positive electrode as a medium. Its characteristics are large capacity, but large leakage, poor stability, positive and negative polarity, and it is suitable for power supply filtering or low-frequency circuits.
[0003] Related Technology At present, during the installation process, aluminum electrolytic capacitors are directly welded and fixed on the mounting base on the circuit board. During actual use, the aluminum electrolytic capacitor body will generate a large amount of heat, and it is necessary to rely on the heat dissipation mechanism of the equipment to centrally dissipate the heat of various electronic components in the equipment including capacitors. This centralized heat dissipation method cannot dissipate the heat of a single aluminum electrolytic capacitor individually, which makes the existing aluminum electrolytic capacitors have the defect of poor heat dissipation performance. Utility Model Content
[0004] In order to improve the heat dissipation performance of an aluminum electrolytic capacitor, the present application provides a heat dissipation type aluminum electrolytic capacitor.
[0005] The heat dissipation aluminum electrolytic capacitor provided in this application adopts the following technical solution:
[0006] A heat dissipation type aluminum electrolytic capacitor comprises a capacitor body, a sleeve, a heat dissipation base and a heat dissipation ring, wherein one end of the sleeve is open and the other end of the sleeve is closed; the heat dissipation base is arranged in the sleeve, and the heat dissipation ring is arranged on the inner side wall of the sleeve; the capacitor body is located inside the heat dissipation ring, and the heat dissipation ring is used to dissipate heat from the arc-shaped side wall of the capacitor; the end of the capacitor body abuts against the heat dissipation base, and the heat dissipation base is used to dissipate heat from the end of the capacitor body.
[0007] By adopting the above technical solution, the sleeve, the heat dissipation base and the heat dissipation ring not only protect the capacitor body, but also dissipate heat from the end of the capacitor body through the heat dissipation base and dissipate heat from the arc-shaped side wall of the capacitor through the heat dissipation ring, thereby improving the heat dissipation efficiency of the capacitor.
[0008] Optionally, the heat dissipation base includes a first heat dissipation plate, a second heat dissipation plate and a plurality of heat dissipation rods, one end of the heat dissipation rod is fixedly connected to the first heat dissipation plate, and the other end of the heat dissipation rod is fixedly connected to the second heat dissipation plate; the end of the capacitor abuts against the first heat dissipation plate, and the end of the heat dissipation ring abuts against the first heat dissipation plate.
[0009] By adopting the above technical solution, when the capacitor body is heated, the heat on the capacitor is transmitted to the sleeve through the first heat sink, multiple heat sink rods and the second heat sink in sequence, and then the heat is released through the sleeve, thereby improving the heat dissipation performance of the capacitor body; at the same time, since the end of the capacitor abuts against the first heat sink and the end of the heat sink ring abuts against the first heat sink, the first heat sink has a supporting and positioning effect on the capacitor and the heat sink ring.
[0010] Optionally, a first heat dissipation hole is formed on the first heat dissipation plate.
[0011] By adopting the above technical solution, the heat on the capacitor body can also be released between the first heat dissipation plate and the second heat dissipation plate through the first heat dissipation hole, thereby further improving the heat dissipation performance of the capacitor body.
[0012] Optionally, a second heat dissipation hole is formed on the second heat dissipation plate.
[0013] By adopting the above technical solution, the heat between the first heat sink and the second heat sink can not only be conducted to the outside through the second heat sink, but also be dissipated to the outside through the second heat sink hole, thereby further improving the heat dissipation efficiency.
[0014] Optionally, a third heat dissipation hole is provided on the heat dissipation ring.
[0015] By adopting the above technical solution, the heat dissipated from the curved side wall of the capacitor body can not only be conducted to the outside through the heat dissipation ring, but also be dissipated to the outside through the third heat dissipation hole, thereby further improving the heat dissipation efficiency of the curved side wall of the capacitor body.
[0016] Optionally, the sleeve is made of non-metallic material.
[0017] By adopting the above technical solution, since the electrical conductivity and thermal conductivity of non-metallic materials are very poor, not only can the capacitor be prevented from short circuiting, but the heat on the capacitor body will not be transferred to the sleeve. Therefore, when the staff touches the sleeve, it also protects the staff's hands.
[0018] Optionally, the sleeve includes an annular tube and an end cover, and the end cover is threadedly matched with the annular tube; the end of the heat dissipation base abuts against the inner wall of the end cover.
[0019] By adopting the above technical solution, the staff can easily remove the end cover from the annular tube by rotating the end cover, thereby facilitating the removal of the heat dissipation base from the annular tube, thereby increasing the convenience for the staff to install and remove the heat dissipation base.
[0020] Optionally, a fourth heat dissipation hole is provided on the annular cylinder.
[0021] By adopting the above technical solution, the heat dissipated by the arc-shaped side wall of the capacitor body can be dissipated through the third heat dissipation hole and the fourth heat dissipation hole in sequence.
[0022] Optionally, a fifth heat dissipation hole is provided on the end cover.
[0023] By adopting the above technical solution, the heat dissipated from the end of the capacitor body can be dissipated through the first heat dissipation hole, the second heat dissipation hole and the fifth heat dissipation hole in sequence.
[0024] In summary, the present application includes at least one of the following beneficial technical effects:
[0025] 1. The sleeve, heat dissipation base and heat dissipation ring not only protect the capacitor body, but also dissipate heat from the end of the capacitor body through the heat dissipation base and dissipate heat from the arc-shaped side wall of the capacitor through the heat dissipation ring, thereby improving the heat dissipation efficiency of the capacitor;
[0026] 2. When the capacitor body is heated, the heat on the capacitor is sequentially transmitted to the sleeve through the first heat sink, multiple heat sink rods and the second heat sink, and then released through the sleeve, thereby improving the heat dissipation performance of the capacitor body; at the same time, since the end of the capacitor abuts on the first heat sink, and the end of the heat sink ring abuts on the first heat sink, the first heat sink has a supporting and positioning effect on the capacitor and the heat sink ring;
[0027] 3. The heat on the capacitor body can also be released between the first heat dissipation plate and the second heat dissipation plate through the first heat dissipation hole, further improving the heat dissipation performance of the capacitor body. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of the heat dissipation type aluminum electrolytic capacitor in the embodiment of the present application.
[0029] Figure 2 It is a half-section view of the heat dissipation type aluminum electrolytic capacitor in the embodiment of the present application.
[0030] Description of reference numerals:
[0031] 1. Capacitor body; 2. Sleeve; 21. Ring tube; 22. End cover; 23. Fourth heat dissipation hole; 24. Fifth heat dissipation hole; 25. Holding groove; 3. Heat dissipation base; 31. First heat dissipation plate; 32. Second heat dissipation plate; 33. Heat dissipation rod; 34. First heat dissipation hole; 35. Second heat dissipation hole; 4. Heat dissipation ring; 41. Third heat dissipation hole. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-2 This application is described in further detail.
[0033] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be the common meanings understood by those skilled in the art to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components.
[0034] The present application embodiment discloses a heat dissipation type aluminum electrolytic capacitor. Figure 1 and Figure 2 The heat dissipation aluminum electrolytic capacitor includes a capacitor body 1, a sleeve 2 and a heat dissipation base 3. One end of the sleeve 2 is open, and the other end of the sleeve 2 is closed. Specifically, the sleeve 2 includes an annular tube 21 and an end cover 22, and the end cover 22 is threadedly matched with the annular tube 21. Four gripping grooves 25 are provided on the end cover 22, and the four gripping grooves 25 are evenly distributed in the circumferential direction, so that the staff can rotate the end cover easily.
[0035] Reference Figure 2 The heat sink 3 is arranged in the sleeve 2, and the end of the heat sink 3 abuts against the inner wall of the end cover 22. The staff can easily remove the end cover 22 from the annular cylinder 21 by rotating the end cover 22, thereby facilitating the removal of the heat sink 3 from the annular cylinder 21, which increases the convenience of the staff in installing and removing the heat sink 3. The end of the capacitor body 1 abuts against the heat sink 3, and the heat sink 3 is used to dissipate the heat from the end of the capacitor body 1.
[0036] In this embodiment, the sleeve 2 is made of non-metallic material. Since the electrical conductivity and thermal conductivity of non-metallic materials are very poor, it can not only prevent the capacitor from short-circuiting, but also prevent the heat on the capacitor body 1 from being transferred to the sleeve 2, so when the staff touches the sleeve 2, it also protects the staff's hands.
[0037] The heat dissipation type aluminum electrolytic capacitor also includes a heat dissipation ring 4, which is arranged on the inner side wall of the sleeve 2, and the end of the heat dissipation ring 4 abuts against the heat dissipation base 3. The capacitor body 1 is located inside the heat dissipation ring 4, and the capacitor body 1 is fixedly connected to the heat dissipation ring 4, and the heat dissipation ring 4 is used to dissipate heat from the arc-shaped side wall of the capacitor. The sleeve 2, the heat dissipation base 3 and the heat dissipation ring 4 not only protect the capacitor body 1, but also dissipate heat from the end of the capacitor body 1 through the heat dissipation base 3, and dissipate heat from the arc-shaped side wall of the capacitor through the heat dissipation ring 4, thereby improving the heat dissipation efficiency of the capacitor.
[0038] Specifically, the heat dissipation base 3 includes a first heat dissipation plate 31, a second heat dissipation plate 32 and a plurality of heat dissipation rods 33, one end of the heat dissipation rod 33 is fixedly connected to the first heat dissipation plate 31, and the other end of the heat dissipation rod 33 is fixedly connected to the second heat dissipation plate 32; the end of the capacitor abuts on the first heat dissipation plate 31, and the end of the heat dissipation ring 4 abuts on the first heat dissipation plate 31. When the capacitor body 1 is heated, the heat on the capacitor is transmitted to the sleeve 2 through the first heat dissipation plate 31, the plurality of heat dissipation rods 33 and the second heat dissipation plate 32 in sequence, and then the heat is released through the sleeve 2, thereby improving the heat dissipation performance of the capacitor body 1; at the same time, because the end of the capacitor abuts on the first heat dissipation plate 31, and the end of the heat dissipation ring 4 abuts on the first heat dissipation plate 31, the first heat dissipation plate 31 has a supporting and positioning effect on the capacitor and the heat dissipation ring 4.
[0039] The first heat dissipation plate 31 is provided with a first heat dissipation hole 34. In the present embodiment, there are a plurality of first heat dissipation holes 34. The heat on the capacitor body 1 can not only be transferred to between the first heat dissipation plate 31 and the second heat dissipation plate 32 through the first heat dissipation plate 31, but also can be released between the first heat dissipation plate 31 and the second heat dissipation plate 32 through the first heat dissipation hole 34, thereby further improving the heat dissipation performance of the capacitor body 1.
[0040] The second heat dissipation plate 32 is provided with a second heat dissipation hole 35. In this embodiment, the diameter of the second heat dissipation hole 35 is greater than the diameter of the first heat dissipation hole 34, and the second heat dissipation hole 35 is coaxial with the second heat dissipation plate 32. The heat between the first heat dissipation plate 31 and the second heat dissipation plate 32 can not only be conducted to the outside through the second heat dissipation plate 32, but also can be dissipated to the outside through the second heat dissipation hole 35, thereby further improving the heat dissipation efficiency of the capacitor body 1.
[0041] The end cover 22 is provided with a fifth heat dissipation hole 24. In this embodiment, the fifth heat dissipation hole 24 is coaxial with the second heat dissipation hole 35, and the diameter of the fifth heat dissipation hole 24 is the same as the diameter of the second heat dissipation hole 35. The heat dissipated from the end of the capacitor body 1 can be dissipated through the first heat dissipation hole 34, the second heat dissipation hole 35 and the fifth heat dissipation hole 24 in sequence, thereby improving the heat dissipation efficiency of the capacitor body 1.
[0042] A plurality of third heat dissipation holes 41 are provided on the heat dissipation ring 4, and a fourth heat dissipation hole 23 is provided on the annular cylinder 21. In the present embodiment, the number of the third heat dissipation holes 41 and the fourth heat dissipation holes 23 are both multiple, and the third heat dissipation holes 41 and the fourth heat dissipation holes 23 are interconnected. The heat dissipated from the arc-shaped side wall of the capacitor body 1 can not only be conducted to the outside through the heat dissipation ring 4, but also the heat dissipated from the arc-shaped side wall of the capacitor body 1 can be dissipated through the third heat dissipation holes 41 and the fourth heat dissipation holes 23 in sequence, thereby further improving the heat dissipation efficiency of the arc-shaped side wall of the capacitor body 1.
[0043] The implementation principle of the above embodiment is: the sleeve 2, the heat dissipation base 3 and the heat dissipation ring 4 not only protect the capacitor body 1, but the heat dissipated from the end of the capacitor body 1 can be dissipated through the first heat dissipation hole 34, the second heat dissipation hole 35 and the fifth heat dissipation hole 24 in sequence, thereby improving the heat dissipation efficiency of the capacitor body 1; the heat dissipated from the arc-shaped side wall of the capacitor body 1 can be dissipated through the third heat dissipation hole 41 and the fourth heat dissipation hole 23 in sequence, thereby further improving the heat dissipation efficiency of the arc-shaped side wall of the capacitor body 1.
[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A heat dissipation aluminum electrolytic capacitor, characterized in that: The invention comprises a capacitor body (1), a sleeve (2), a heat dissipation base (3) and a heat dissipation ring (4); one end of the sleeve (2) is open and the other end of the sleeve (2) is closed; the heat dissipation base (3) is arranged in the sleeve (2), and the heat dissipation ring (4) is arranged on the inner wall of the sleeve (2); the capacitor body (1) is located inside the heat dissipation ring (4), and the heat dissipation ring (4) is used to dissipate heat from the arc-shaped side wall of the capacitor; the end of the capacitor body (1) abuts against the heat dissipation base (3), and the heat dissipation base (3) is used to dissipate heat from the end of the capacitor body (1).
2. The heat dissipating aluminum electrolytic capacitor according to claim 1, characterized in that: The heat dissipation base (3) comprises a first heat dissipation plate (31), a second heat dissipation plate (32) and a plurality of heat dissipation rods (33); one end of the heat dissipation rod (33) is fixedly connected to the first heat dissipation plate (31), and the other end of the heat dissipation rod (33) is fixedly connected to the second heat dissipation plate (32); the end of the capacitor abuts against the first heat dissipation plate (31), and the end of the heat dissipation ring (4) abuts against the first heat dissipation plate (31).
3. The heat dissipating aluminum electrolytic capacitor according to claim 2, characterized in that: The first heat dissipation plate (31) is provided with a first heat dissipation hole (34).
4. The heat dissipating aluminum electrolytic capacitor according to claim 2, characterized in that: The second heat dissipation plate (32) is provided with a second heat dissipation hole (35).
5. The heat dissipating aluminum electrolytic capacitor according to claim 1, characterized in that: The heat dissipation ring (4) is provided with a third heat dissipation hole (41).
6. The heat dissipating aluminum electrolytic capacitor according to claim 1, characterized in that: The material of the sleeve (2) is a non-metallic material.
7. The heat dissipating aluminum electrolytic capacitor according to claim 1, characterized in that: The sleeve (2) comprises an annular sleeve (21) and an end cover (22), wherein the end cover (22) is threadedly matched with the annular sleeve (21); and the end of the heat dissipation base (3) abuts against the inner wall of the end cover (22).
8. The heat dissipating aluminum electrolytic capacitor according to claim 7, characterized in that: The annular cylinder (21) is provided with a fourth heat dissipation hole (23).
9. The heat dissipating aluminum electrolytic capacitor according to claim 7, characterized in that: The end cover (22) is provided with a fifth heat dissipation hole (24).