High heat dissipation type electrolytic capacitor

Abstract

The utility model provides a high heat dissipation type electrolytic capacitor, which comprises a capacitor body, a heat dissipation suite and a heat sealing film, the capacitor body is provided with a cylindrical shell, the heat dissipation suite comprises a connecting ring, a connecting lug, a plurality of groups of connecting longitudinal plates and a heat dissipation elastic sheet which are integrally arranged, and the connecting longitudinal plates are uniformly arranged on the periphery of the shell. The upper ends of the connecting longitudinal plates are connected with the periphery of the connecting ring through the connecting lugs, the multiple sets of heat dissipation elastic pieces evenly correspond to the left sides and the right sides of the connecting longitudinal plates, the outer ends of the heat dissipation elastic pieces are connected to the connecting longitudinal plates, the inner ends of the heat dissipation elastic pieces are provided with arc-shaped parts making contact with the surface of the shell, and the peripheries of the multiple sets of connecting longitudinal plates are sleeved with the heat sealing film. The design has the advantages that the heat dissipation performance of the capacitor can be improved, a heat-sealing film can be allowed to be sleeved, and the identification content of the heat-sealing film is kept intact.

Description

Technical Field

[0001] This utility model relates to the field of capacitor structure, and in particular to a high heat dissipation electrolytic capacitor. Background Technology

[0002] After capacitor manufacturing, a plastic film is often heat-sealed onto the capacitor casing. The film is printed with the capacitor's model number, parameters, and trademark. However, capacitors themselves have poor heat dissipation performance, and the film further hinders heat dissipation, resulting in a short lifespan for the capacitor. To improve the heat dissipation performance of capacitors, existing technologies generally set multiple sets of outward-protruding heat dissipation fins on the capacitor casing. However, after setting the heat dissipation fins, it is impossible to heat seal the plastic film because the heat dissipation fins are easy to puncture the film, making the markings on the film illegible. Therefore, in order to improve the heat dissipation performance of capacitors without hindering the heat sealing of the plastic film, it is necessary to manufacture a high-heat-dissipation electrolytic capacitor to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a high heat dissipation electrolytic capacitor to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A high heat dissipation electrolytic capacitor includes a capacitor body, a heat dissipation kit, and a heat-sealing film. The capacitor body has a cylindrical shell. The heat dissipation kit includes an integrally formed connecting ring, connecting lugs, connecting longitudinal plates, and heat dissipation springs. Multiple sets of connecting longitudinal plates are evenly arranged on the outer periphery of the shell. The upper end of the connecting longitudinal plates is connected to the outer periphery of the connecting ring through the connecting lugs. Multiple sets of heat dissipation springs are evenly arranged on the left and right sides of the connecting longitudinal plates. The outer end of the heat dissipation springs is connected to the connecting longitudinal plates, and the inner end of the heat dissipation springs has an arc-shaped part that contacts the surface of the shell. The heat-sealing film is sleeved on the outer periphery of the multiple sets of connecting longitudinal plates.

[0006] Further description of the present invention: The lower end of the connecting longitudinal plate is provided with a film limiting part, and the middle part of the film limiting part is bent inward.

[0007] Further description of the present invention: It also includes a support ear, which is integrally formed with the connecting longitudinal plate and whose outer end is connected to the lower end of the connecting longitudinal plate, and whose inner end is in contact with the surface of the shell.

[0008] Further description of the present invention: It also includes a limiting plate, which is integrally formed with the connecting longitudinal plate and whose outer end is connected to the lower end of the connecting longitudinal plate. The lower end of the housing is provided with a limiting groove. Two sets of limiting plates are symmetrically arranged about the housing, and the inner ends of the two sets of limiting plates are inserted into the limiting grooves.

[0009] Further description of this utility model: heat dissipation holes are provided on the connecting ear, the supporting ear and the limiting plate.

[0010] Further description of this utility model: The heat dissipation springs between two adjacent sets of connecting longitudinal plates are arranged alternately.

[0011] Further description of this utility model: The lower end face of the connecting ring is in contact with the upper end face of the housing.

[0012] Further description of this utility model: The heat dissipation kit is made of metal material.

[0013] The beneficial effects of this utility model are as follows: After the capacitor body is manufactured, the heat dissipation kit is fitted onto the outer periphery of the capacitor body to assist in heat dissipation. Before the heat dissipation kit is fitted into the capacitor body, the lower ends of the connecting longitudinal plates are all contracted inward. So that after the heat dissipation kit is fitted from above the shell, the connecting longitudinal plates can drive the arc-shaped part on the heat dissipation spring to press the shell, thereby connecting the shell and each heat dissipation spring. After the heat dissipation kit is fitted, a heat-sealing film is fitted onto the outer periphery of the heat dissipation kit through a heat-sealing process. When the capacitor is in use, a heat dissipation cavity is formed between the heat-sealing film and the shell. The heat generated by the capacitor can be dissipated through the shell to the openings at the top and bottom of the heat dissipation cavity, or through the heat dissipation springs and connecting longitudinal plates to dissipate heat to the openings at the top and bottom of the heat dissipation cavity. This greatly improves the heat dissipation efficiency of the capacitor, thereby extending its service life. On the other hand, the outer end face of the connecting longitudinal plate is a smooth surface, either flat or curved. After the heat-sealing film is fitted, it will not be punctured, and the markings on the surface of the heat-sealing film can remain intact. The advantages of this design are: it can improve the heat dissipation performance of the capacitor, while allowing the heat-sealing film to be fitted and keeping the markings on the heat-sealing film intact. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of the present invention;

[0015] Figure 2 This is a structural diagram of the capacitor body in this utility model;

[0016] Figure 3 This is a structural diagram of the capacitor body and heat dissipation kit in this utility model;

[0017] Figure 4 This is a structural diagram of the heat dissipation kit in this utility model;

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Capacitor body; 11. Housing; 111. Limiting groove; 2. Heat dissipation kit; 21. Connecting ring; 22. Connecting ear; 23. Connecting longitudinal plate; 231. Thin film limiting part; 24. Heat dissipation spring; 241. Arc-shaped part; 25. Support ear; 26. Limiting plate; 27. Heat dissipation hole; 3. Heat sealing film. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1 to 4 As shown, a high heat dissipation electrolytic capacitor includes a capacitor body, a heat dissipation kit, and a heat-sealing film. The capacitor body has a cylindrical shell. The heat dissipation kit includes an integrally formed connecting ring, connecting lugs, connecting longitudinal plates, and heat dissipation springs. Multiple sets of connecting longitudinal plates are evenly arranged on the outer periphery of the shell. The upper end of the connecting longitudinal plates is connected to the outer periphery of the connecting ring through the connecting lugs. Multiple sets of heat dissipation springs are evenly arranged on the left and right sides of the connecting longitudinal plates. The outer end of the heat dissipation springs is connected to the connecting longitudinal plates, and the inner end of the heat dissipation springs has an arc-shaped part that contacts the surface of the shell. The heat-sealing film is sleeved on the outer periphery of the multiple sets of connecting longitudinal plates.

[0022] After the capacitor body is manufactured, the heat dissipation kit is fitted onto the outer periphery of the capacitor body to assist in heat dissipation. Before the heat dissipation kit is fitted onto the capacitor body, the lower ends of the connecting longitudinal plates are all contracted inward. So that after the heat dissipation kit is fitted from above the shell, the connecting longitudinal plates can drive the arc-shaped part on the heat dissipation spring to press the shell, thereby connecting the shell and each heat dissipation spring. After the heat dissipation kit is fitted, a heat-sealing film is fitted onto the outer periphery of the heat dissipation kit through a heat sealing process. When the capacitor is in use, a heat dissipation cavity is formed between the heat-sealing film and the shell. The heat generated by the capacitor can be dissipated through the shell to the openings at the top and bottom of the heat dissipation cavity, or through the heat dissipation springs and connecting longitudinal plates to dissipate heat to the openings at the top and bottom of the heat dissipation cavity. This greatly improves the heat dissipation efficiency of the capacitor, thereby extending its service life. On the other hand, the outer end face of the connecting longitudinal plate is a smooth surface, either flat or curved. After the heat-sealing film is fitted, it will not be punctured, and the markings on the surface of the heat-sealing film can remain intact. The advantages of this design are: it can improve the heat dissipation performance of the capacitor, while allowing the heat-sealing film to be fitted and keeping the markings on the heat-sealing film intact.

[0023] The lower end of the connecting longitudinal plate is provided with a film limiting part, the middle part of which is bent inward. After the heat-sealing film is fitted, during the heat-sealing process, the lower end of the heat-sealing film will be tightly attached to the film limiting part, which can prevent the heat-sealing film from moving in the vertical direction during the use or transportation of the capacitor.

[0024] This design also includes a support ear, which is integrally formed with the connecting longitudinal plate and whose outer end is connected to the lower end of the connecting longitudinal plate. The inner end of the support ear contacts the surface of the housing. The support ear can support the lower end of the connecting longitudinal plate, thereby keeping the connecting longitudinal plate in a vertical direction. This makes the overall shape of the capacitor more symmetrical and aesthetically pleasing after the heat-sealing film is applied.

[0025] This design also includes a limiting plate, which is integrally formed with the connecting longitudinal plate and whose outer end is connected to the lower end of the connecting longitudinal plate. The lower end of the housing is provided with a limiting groove. Two sets of limiting plates are symmetrically arranged about the housing, and the inner ends of the two sets of limiting plates are inserted into the limiting groove.

[0026] After the heat dissipation kit is fitted into the housing, the limiting plate is inserted into the limiting groove. After the heat sealing film is fitted, the limiting plate cannot detach from the limiting groove under the restriction of the heat sealing film, so that the heat dissipation kit will not detach from the housing during the use of the capacitor.

[0027] The connecting lugs, supporting lugs, and limiting plates are all provided with heat dissipation holes. These holes allow heat between the connecting longitudinal plate and the housing to dissipate from the top and bottom of the connecting longitudinal plate, improving heat dissipation efficiency.

[0028] The heat dissipation springs between the two adjacent sets of connecting longitudinal plates are arranged alternately. During the integral stamping process, the heat dissipation springs between the two adjacent sets of connecting longitudinal plates are interlocked, which can reduce the distance between the two adjacent sets of connecting longitudinal plates and reduce waste.

[0029] The lower end face of the connecting ring contacts the upper end face of the housing. During the process of fitting the heat sink kit into the housing, the connecting ring acts as a limit to control the insertion depth of the heat sink kit and prevent the heat sink kit from detaching from the housing during use or transportation. Alternatively, both the aforementioned limiting plate and limiting groove can be configured to securely connect the heat sink kit to the housing.

[0030] The heat dissipation kit is made of metal, which is easy to stamp and has high heat transfer efficiency.

[0031] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A high heat dissipating electrolytic capacitor, characterized by: The device includes a capacitor body, a heat dissipation kit, and a heat-sealing film. The capacitor body has a cylindrical shell. The heat dissipation kit includes an integrally formed connecting ring, connecting lugs, connecting longitudinal plates, and heat dissipation springs. Multiple sets of connecting longitudinal plates are evenly arranged on the outer periphery of the shell. The upper end of the connecting longitudinal plates is connected to the outer periphery of the connecting ring through the connecting lugs. Multiple sets of heat dissipation springs are evenly arranged on the left and right sides of the connecting longitudinal plates. The outer end of the heat dissipation springs is connected to the connecting longitudinal plates, and the inner end of the heat dissipation springs has an arc-shaped portion that contacts the surface of the shell. The heat-sealing film is sleeved on the outer periphery of the multiple sets of connecting longitudinal plates.

2. The high heat dissipation type electrolytic capacitor according to claim 1, wherein: The lower end of the connecting longitudinal plate is provided with a thin film limiting part, and the middle part of the thin film limiting part is bent inward.

3. The high heat dissipation type electrolytic capacitor according to claim 1, wherein: It also includes a support ear, which is integrally formed with the connecting longitudinal plate and whose outer end is connected to the lower end of the connecting longitudinal plate, and whose inner end is in contact with the surface of the housing.

4. The high heat dissipation type electrolytic capacitor according to claim 3, wherein: It also includes a limiting plate, which is integrally formed with the connecting longitudinal plate and whose outer end is connected to the lower end of the connecting longitudinal plate. The lower end of the housing is provided with a limiting groove. Two sets of limiting plates are symmetrically arranged about the housing, and the inner ends of the two sets of limiting plates are inserted into the limiting groove.

5. The high heat dissipation type electrolytic capacitor according to claim 4, wherein: The connecting ear, the supporting ear, and the limiting plate are all provided with heat dissipation holes.

6. The high heat dissipation type electrolytic capacitor according to claim 1, wherein: The heat dissipation springs are arranged alternately between two adjacent sets of connecting longitudinal plates.

7. A high heat dissipation electrolytic capacitor according to claim 1, characterized in that: The lower end face of the connecting ring is in contact with the upper end face of the housing.

8. The high heat dissipation type electrolytic capacitor according to claim 1, wherein: The heat dissipation kit is made of metal.

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