Aluminum electrolytic capacitor protection structure

Abstract

The utility model discloses an aluminum electrolytic capacitor protection structure, which comprises a capacitor body, the capacitor body comprises a shell, the shell comprises an aluminum shell, reinforcing ribs are arranged in the aluminum shell, a capacitor inner core is arranged in the shell, one end of the capacitor inner core is fixed in the shell through a sealing rubber cover, and the other end of the capacitor inner core is fixed in the shell through a sealing rubber cover. The shell comprises the aluminum shell, the reinforcing ribs are arranged in the aluminum shell, so that the internal structural strength of the aluminum shell is high, the anti-deformation effect is good, the end plate is arranged in the other end of the shell in an elastic sliding mode, and the anti-deformation effect is good. Therefore, when the internal pressure of the capacitor body is too large, mobile buffer pressure relief processing can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum electrolytic capacitors, in particular to an aluminum electrolytic capacitor protection structure. Background Art

[0002] Aluminum electrolytic capacitors are widely used in electronic circuits due to their small size, large capacity storage capacity, and low cost. They have the functions of passing AC, blocking DC, filtering, bypassing, coupling, and rapid charging and discharging. However, aluminum electrolytic capacitors in existing technologies have poor stability and are easily affected by extreme high and low temperature conditions.

[0003] Prior art application number CN213150581U discloses a bolt-type aluminum electrolytic capacitor with easy heat dissipation, comprising an aluminum shell, a core pack disposed within the aluminum shell, and a cover plate mounted above the aluminum shell; a positive stud and a negative stud are connected to the cover plate; the core pack is formed by a first electrolytic paper foil, a second electrolytic paper foil, a third electrolytic paper foil, an anode foil, and a cathode foil, wherein the anode foil is located between the first and second electrolytic paper foils, and the cathode foil is located between the second and third electrolytic paper foils; the anode foil is connected to the positive stud via a first electrode strip; the cathode foil is connected to the negative stud via a second electrode strip; the bottom of the cathode foil protrudes from the core pack and contacts the bottom of the aluminum shell via a thermally conductive silicone pad. Compared to the prior art, the bolt-type aluminum electrolytic capacitor of the present invention improves thermal conductivity by widening the cathode foil, allowing it to contact the bottom of the aluminum shell.

[0004] However, the internal structure strength of the aluminum shell in the prior art is low and the deformation resistance is poor. In order to solve the above technical problems, we propose an aluminum electrolytic capacitor protection structure. Utility Model Content

[0005] The purpose of the utility model is to provide an aluminum electrolytic capacitor protection structure to solve the problems of low internal structural strength and poor anti-deformation effect of the aluminum shell in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a protective structure for an aluminum electrolytic capacitor, comprising a capacitor body, the capacitor body comprising a shell, the shell comprising an aluminum shell, and reinforcing ribs provided inside the aluminum shell, a capacitor core provided inside the shell, one end of the capacitor core being fixed in the shell by a sealing rubber cover, and an elastic sliding end plate provided inside the other end of the shell.

[0007] Furthermore, an insulating sleeve is provided on the outside of the shell, and a bolt interface at one end of the capacitor core is provided through the sealing rubber cover.

[0008] Furthermore, the reinforcing ribs include transverse reinforcing ribs and longitudinal reinforcing ribs, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are vertically fixed and welded.

[0009] Furthermore, the transverse reinforcing ribs are arranged as annular ribs, the longitudinal reinforcing ribs are arranged as long strips, and a plurality of transverse reinforcing ribs and longitudinal reinforcing ribs are arranged at equal intervals.

[0010] Furthermore, a reinforcement sheet is provided at the connection between the transverse reinforcement ribs and the longitudinal reinforcement ribs, and both sides of the reinforcement sheet are fixedly welded to the transverse reinforcement ribs and the longitudinal reinforcement ribs respectively.

[0011] Furthermore, one end of the end plate is slidably arranged inside the shell through a limiting plate, and a plurality of springs are provided on the inner side of the limiting plate.

[0012] Furthermore, a sealing gasket is provided on one side of the limit plate, and an explosion-proof hole is opened inside the end plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model comprises an aluminum shell through a shell, and the aluminum shell is provided with reinforcing ribs inside, the reinforcing ribs include transverse reinforcing ribs and longitudinal reinforcing ribs, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are vertically fixed and welded, the transverse reinforcing ribs are arranged as annular ribs, and a plurality of transverse reinforcing ribs and longitudinal reinforcing ribs are evenly spaced, so that the internal structure strength of the aluminum shell is higher and the anti-deformation effect is better.

[0015] 2. The utility model also provides an elastic sliding end plate inside the other end of the shell. One end of the end plate is slidably arranged inside the shell through a limit plate, and a plurality of springs are provided on the inner side of the limit plate, so that the capacitor body can be moved for buffering and pressure relief when the pressure inside the capacitor body is too high.

[0016] 3. The present invention further provides a reinforcing plate at the connection between the transverse reinforcing ribs and the longitudinal reinforcing ribs, and the two sides of the reinforcing plate are fixedly welded to the transverse reinforcing ribs and the longitudinal reinforcing ribs respectively, thereby increasing the stability of the connection structure between the transverse reinforcing ribs and the longitudinal reinforcing ribs, thereby further improving the structural strength inside the aluminum shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the shell structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the reinforcing rib structure of the utility model;

[0021] Figure 4 This is a bottom view of the overall structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the end plate structure of the present utility model.

[0023] In the figure: 1. Shell; 2. Sealant cover; 3. Bolt interface; 4. End plate; 5. Capacitor core; 6. Insulating sleeve; 7. Aluminum shell; 8. Reinforcement ribs; 801. Horizontal reinforcement ribs; 802. Longitudinal reinforcement ribs; 803. Reinforcement sheet; 9. Explosion-proof hole; 10. Limit plate; 11. Sealing gasket; 12. Spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 In an embodiment of the present invention, a protective structure for an aluminum electrolytic capacitor includes a capacitor body, the capacitor body includes a shell 1, the shell 1 includes an aluminum shell 7, and a reinforcing rib 8 is provided inside the aluminum shell 7, the reinforcing rib 8 includes a transverse reinforcing rib 801 and a longitudinal reinforcing rib 802, and the transverse reinforcing rib 801 and the longitudinal reinforcing rib 802 are vertically fixed and welded, the transverse reinforcing rib 801 is arranged as an annular rib, the longitudinal reinforcing rib 802 is arranged as a long strip, and a plurality of transverse reinforcing ribs 801 and longitudinal reinforcing ribs 802 are arranged at equal intervals, so that the internal structure strength of the aluminum shell 7 is high and the anti-deformation effect is good, a capacitor core 5 is provided inside the shell 1, one end of the capacitor core 5 is fixed in the shell 1 by a sealing rubber cover 2, which is convenient for installing and fixing the capacitor core 5, an insulating sleeve 6 is provided on the outside of the shell 1, and a bolt interface 3 at one end of the capacitor core 5 is arranged through the sealing rubber cover 2 for sealing one end of the capacitor core 5.

[0026] like Figure 4 and Figure 5As shown, in order to perform buffering and pressure relief inside one end of the capacitor body, one end of the end plate 4 is slidably arranged inside the shell 1 through a limit plate 10 and a spring 12, so that mobile buffering and pressure relief can be performed when the pressure inside the capacitor body is too high. A sealing gasket 11 is provided on one side of the limit plate 10, and an explosion-proof hole 9 is opened inside the end plate 4 to facilitate exhaust and pressure relief.

[0027] like Figure 3 As shown, in order to increase the structural strength of the interior of the aluminum shell 7, a reinforcing sheet 803 is further provided at the connection between the transverse reinforcing ribs 801 and the longitudinal reinforcing ribs 802, and the two sides of the reinforcing sheet 803 are fixedly welded to the transverse reinforcing ribs 801 and the longitudinal reinforcing ribs 802 respectively, thereby increasing the stability of the connection structure between the transverse reinforcing ribs 801 and the longitudinal reinforcing ribs 802, thereby further improving the structural strength of the interior of the aluminum shell 7.

[0028] The working principle and usage process of the present invention are as follows: when in use, a shell 1 is provided on the outside of the capacitor body, the shell 1 includes an aluminum shell 7, and a reinforcing rib 8 is provided inside the aluminum shell 7, the reinforcing rib 8 includes a transverse reinforcing rib 801 and a longitudinal reinforcing rib 802, and the transverse reinforcing rib 801 and the longitudinal reinforcing rib 802 are vertically fixed and welded, so that the internal structure strength of the aluminum shell 7 is higher and the anti-deformation effect is better; and an elastic sliding end plate 4 is also provided inside the other end of the shell 1, so that it can perform mobile buffering and pressure relief processing when the internal pressure of the capacitor body is too large, and at the same time, an explosion-proof hole 9 is opened inside the end plate 4 to facilitate exhaust and pressure relief processing.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A protective structure for an aluminum electrolytic capacitor, comprising a capacitor body, characterized in that: The capacitor body comprises a housing (1), the housing (1) comprises an aluminum shell (7), and the aluminum shell (7) is provided with reinforcing ribs (8) inside. A capacitor core (5) is provided inside the housing (1), one end of the capacitor core (5) is fixed in the housing (1) through a sealing rubber cover (2), and an elastic sliding end plate (4) is also provided inside the other end of the housing (1).

2. The aluminum electrolytic capacitor protection structure according to claim 1, characterized in that: An insulating sleeve (6) is provided on the outside of the housing (1), and a bolt interface (3) at one end of the capacitor core (5) is provided through the sealing rubber cover (2).

3. The aluminum electrolytic capacitor protection structure according to claim 1, characterized in that: The reinforcing ribs (8) include transverse reinforcing ribs (801) and longitudinal reinforcing ribs (802), and the transverse reinforcing ribs (801) and the longitudinal reinforcing ribs (802) are vertically fixed and welded.

4. The aluminum electrolytic capacitor protection structure according to claim 3, characterized in that: The transverse reinforcing ribs (801) are configured as annular ribs, and the longitudinal reinforcing ribs (802) are configured as long strips, and a plurality of transverse reinforcing ribs (801) and longitudinal reinforcing ribs (802) are provided at equal intervals.

5. The aluminum electrolytic capacitor protection structure according to claim 3, characterized in that: A reinforcing sheet (803) is further provided at the connection between the transverse reinforcing rib (801) and the longitudinal reinforcing rib (802), and both sides of the reinforcing sheet (803) are fixedly welded to the transverse reinforcing rib (801) and the longitudinal reinforcing rib (802) respectively.

6. The aluminum electrolytic capacitor protection structure according to claim 1, characterized in that: One end of the end plate (4) is slidably arranged inside the housing (1) via a limiting plate (10), and a plurality of springs (12) are provided inside the limiting plate (10).

7. The aluminum electrolytic capacitor protection structure according to claim 6, characterized in that: A sealing gasket (11) is provided on one side of the limit plate (10), and an explosion-proof hole (9) is provided inside the end plate (4).

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