Explosion-proof structure of aluminum electrolytic capacitor

Abstract

The utility model provides an aluminum electrolytic capacitor explosion-proof structure which comprises a capacitor, an explosion-proof groove is arranged at the top of the capacitor, an explosion-proof shell sleeves the outer wall of the capacitor, a first air outlet is arranged at the top of the explosion-proof shell, heat dissipation holes are arranged on the outer wall of the explosion-proof shell, and a heat dissipation coating is arranged on the inner wall of the explosion-proof shell. A flame-retardant mechanism is arranged in the explosion-proof shell, and a connecting mechanism is arranged at the bottom of the explosion-proof shell; when the explosion-proof structure is used, the problem that fragments splash when the capacitor explodes and damage other surrounding electric appliance elements is effectively avoided, and through the arranged explosion-proof shell, the fragments can be effectively intercepted, and heat dissipation is not affected.

Description

Technical Field

[0001] The utility model relates to the field of capacitors, and in particular to an explosion-proof structure of an aluminum electrolytic capacitor. Background Art

[0002] Aluminum electrolytic capacitors are made of an aluminum cylinder as the negative electrode, filled with liquid electrolyte, and a curved aluminum ribbon inserted as the positive electrode. While aluminum electrolytic capacitors are steadily growing in traditional consumer electronics, their application is expanding into emerging fields such as energy-saving lamps, inverters, and new energy sources with structural transformation and technological advancement. Aluminum electrolytic capacitors are characterized by high capacity, but also suffer from high leakage, large errors, and poor stability. They are commonly used for AC bypass and filtering, and can also be used for signal coupling when requirements are less stringent. Electrolytic capacitors have positive and negative poles, and they cannot be connected reversely during use. Aluminum electrolytic capacitors have poor stability and are susceptible to extreme high and low temperatures, making them prone to explosion. Existing technology typically includes an explosion-proof slot at the top of the capacitor. This allows the top of the slot to crack and release pressure if the internal electrolyte vaporizes and causes pressure to rise, preventing an explosion.

[0003] Due to the high pressure when existing capacitors explode, even if explosion-proof grooves are opened, fragments may still be splashed, causing damage to other surrounding electrical components. Therefore, we have made improvements to this and proposed an explosion-proof structure for aluminum electrolytic capacitors. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing capacitors may cause fragments to fly due to the high pressure when they explode, which may damage other electrical components around them.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0006] Aluminum electrolytic capacitors have explosion-proof structures to improve the above problems.

[0007] The specific application is as follows:

[0008] The invention comprises a capacitor, wherein an explosion-proof groove is provided on the top of the capacitor, an explosion-proof shell is provided on the outer wall of the capacitor, a first air outlet is provided on the top of the explosion-proof shell, a heat dissipation hole is provided on the outer wall of the explosion-proof shell, a heat dissipation coating is provided on the inner wall of the explosion-proof shell, a flame retardant mechanism is provided inside the explosion-proof shell, and a connecting mechanism is provided on the bottom of the explosion-proof shell.

[0009] As a preferred technical solution of the present application, the flame retardant mechanism includes a flame retardant pad bonded to the top of the inner wall of the explosion-proof shell.

[0010] As a preferred technical solution of the present application, a second air outlet is provided on the flame retardant pad, and the second air outlet corresponds to the first air outlet.

[0011] As a preferred technical solution of the present application, the connecting mechanism includes a rubber ring fixedly installed at the bottom of the explosion-proof shell, and a card slot is provided on the rubber ring.

[0012] As a preferred technical solution of the present application, a locking ball is fixedly installed on the outer wall of the capacitor.

[0013] As a preferred technical solution of the present application, a positive electrode pin and a negative electrode pin are provided at the bottom of the capacitor.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the scheme of this application:

[0016] 1. The explosion-proof shell and flame-retardant pads effectively prevent fragments from flying and provide flame-retardant functions. This solves the problem in the prior art that, due to the high pressure when the capacitor explodes, even if an explosion-proof groove is provided, fragments may still fly and damage other surrounding electrical components.

[0017] 2. The explosion-proof shell can be easily installed by setting the card slot and card ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the explosion-proof structure of the aluminum electrolytic capacitor provided in this application;

[0019] Figure 2 Schematic diagram of the explosion-proof slot structure of the aluminum electrolytic capacitor explosion-proof structure provided in this application;

[0020] Figure 3 Schematic diagram of the explosion-proof shell structure of the aluminum electrolytic capacitor provided in this application;

[0021] Figure 4 A schematic diagram of the cross-sectional structure of the explosion-proof shell of the explosion-proof structure of the aluminum electrolytic capacitor provided in this application;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the explosion-proof shell of the explosion-proof structure of the aluminum electrolytic capacitor provided in this application.

[0023] Indicated in the figure:

[0024] 1. Capacitor; 101. Explosion-proof slot; 102. Positive pin; 103. Negative pin; 2. Explosion-proof shell; 201. First vent; 202. Heat dissipation hole; 203. Heat dissipation coating; 3. Rubber ring; 301. Card slot; 4. Flame retardant pad; 401. Second vent; 5. Card ball. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0026] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0030] Example:

[0031] like Figure 1-5 As shown, this embodiment provides an explosion-proof structure for an aluminum electrolytic capacitor, comprising a capacitor 1 with an explosion-proof groove 101 disposed on the top of the capacitor 1. An explosion-proof housing 2 is provided on the outer wall of the capacitor 1. The top of the explosion-proof housing 2 is provided with a first air outlet 201, and the outer wall of the explosion-proof housing 2 is provided with a heat dissipation hole 202. The heat dissipation hole 202 effectively prevents poor heat dissipation after the installation of the explosion-proof housing 2. The inner wall of the explosion-proof housing 2 is provided with a heat dissipation coating 203 to improve heat dissipation. The explosion-proof housing 2 is provided with a flame retardant mechanism, and the bottom of the explosion-proof housing 2 is provided with a connecting mechanism. When in use, the explosion-proof structure of the present application effectively prevents the problem of fragments from flying and damaging other electrical components in the event of an explosion of the capacitor 1. The explosion-proof housing 2 effectively intercepts the fragments without affecting heat dissipation.

[0032] In order to prevent combustion, the flame retardant mechanism includes a flame retardant pad 4 bonded to the top of the inner wall of the explosion-proof shell 2.

[0033] In order not to affect the air outlet, a second air outlet hole 401 is opened on the flame retardant pad 4 , and the second air outlet hole 401 corresponds to the first air outlet hole 201 .

[0034] In order to facilitate the installation of the explosion-proof shell 2, the connection mechanism includes a rubber ring 3 fixedly installed at the bottom of the explosion-proof shell 2, and a slot 301 is opened on the rubber ring 3.

[0035] A locking ball 5 is fixedly installed on the outer wall of the capacitor 1. First, the explosion-proof shell 2 is placed on the top of the capacitor 1, and the locking slot 301 is hung on the locking ball 5, and the installation of the explosion-proof shell 2 is completed.

[0036] A positive pin 102 and a negative pin 103 are provided at the bottom of the capacitor 1 .

[0037] Specifically, when the explosion-proof structure of the aluminum electrolytic capacitor is in use: first, the explosion-proof shell 2 is placed on the top of the capacitor 1, and the card slot 301 is hung on the card ball 5, and the installation of the explosion-proof shell 2 is completed; when the internal pressure of the capacitor 1 increases, the top explosion-proof slot 101 will be opened to release the pressure to avoid explosion. At the moment of opening, fragments may fly. At this time, the explosion-proof shell 2 can intercept the fragments, effectively preventing the fragments from flying and causing damage to other surrounding electrical components. The flame retardant pad 4 can play a flame retardant role. The material of the flame retardant pad 4 is flame retardant material, and the appropriate material can be freely selected according to actual usage.

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. An explosion-proof structure of an aluminum electrolytic capacitor, comprising a capacitor (1), wherein an explosion-proof groove (101) is provided on the top of the capacitor (1), characterized in that: The outer wall of the capacitor (1) is provided with an explosion-proof shell (2), the top of the explosion-proof shell (2) is provided with a first air outlet (201), the outer wall of the explosion-proof shell (2) is provided with a heat dissipation hole (202), the inner wall of the explosion-proof shell (2) is provided with a heat dissipation coating (203), a flame retardant mechanism is provided inside the explosion-proof shell (2), and a connecting mechanism is provided at the bottom of the explosion-proof shell (2).

2. The explosion-proof structure of an aluminum electrolytic capacitor according to claim 1, characterized in that: The flame retardant mechanism comprises a flame retardant pad (4) bonded to the top of the inner wall of the explosion-proof shell (2).

3. The explosion-proof structure of an aluminum electrolytic capacitor according to claim 2, characterized in that: The flame retardant pad (4) is provided with a second air outlet (401), and the second air outlet (401) corresponds to the first air outlet (201).

4. The explosion-proof structure of an aluminum electrolytic capacitor according to claim 1, characterized in that: The connecting mechanism comprises a rubber ring (3) fixedly mounted on the bottom of the explosion-proof shell (2), and a slot (301) is provided on the rubber ring (3).

5. The explosion-proof structure of an aluminum electrolytic capacitor according to claim 1, characterized in that: A clamping ball (5) is fixedly mounted on the outer wall of the capacitor (1).

6. The explosion-proof structure of an aluminum electrolytic capacitor according to claim 5, characterized in that: The bottom of the capacitor (1) is provided with a positive electrode pin (102) and a negative electrode pin (103).

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