Lead type aluminum electrolytic capacitor

Abstract

The utility model relates to the technical field of capacitors, in particular to a lead type aluminum electrolytic capacitor, which comprises a capacitor body, a pair of leads are welded at the bottom of the body, a protective shell is sleeved at the bottom of the body, the leads penetrate through the bottom of the protective shell, and a pair of protective sleeves are slidably arranged at the bottom of the protective shell. The lead-type aluminum electrolytic capacitor comprises a main body and a protective shell, the main body is provided with a protective sleeve, the bottom of the protective sleeve is integrally provided with an extension pipe, the bottom of the lead penetrates through the protective sleeve and the extension pipe, the protective sleeve is a hard pipe fitting, the extension pipe is a flexible pipe fitting, and the outer wall of the extension pipe is provided with a plurality of axial clamping grooves. The lead of the capacitor is effectively protected, and the installation is rapid and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a lead-type aluminum electrolytic capacitor. Background Art

[0002] Electrolytic capacitor is a kind of capacitor, with metal foil as the positive electrode (aluminum or tantalum), the oxide film (aluminum oxide or tantalum pentoxide) close to the positive electrode is the dielectric, and the cathode is composed of conductive materials, electrolytes (the electrolyte can be liquid or solid) and other materials. Because the electrolyte is the main part of the cathode, the electrolytic capacitor is named after it. Aluminum electrolytic capacitors can be divided into four categories: lead-type aluminum electrolytic capacitors; horn-type aluminum electrolytic capacitors; bolt-type aluminum electrolytic capacitors; solid-state aluminum electrolytic capacitors. Existing lead-type aluminum electrolytic capacitors have longer pins, and the lead is prone to breakage during installation or subsequent use. For example, a lead-type aluminum electrolytic capacitor in China, patent number (CN218038876U), uses a connection structure between the two pins to enhance the connection strength between the lead and the capacitor body, but the capacitor body will still fall to both sides, and the protection of the lead is not good. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and provides a lead-type aluminum electrolytic capacitor.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lead-type aluminum electrolytic capacitor is designed, comprising a capacitor body, a pair of leads welded to the bottom of the body, a protective shell sleeved on the bottom of the body, the leads passing through the bottom of the protective shell, a pair of protective sleeves slidably arranged on the bottom of the protective shell, an extension tube integrally formed at the bottom of the protective sleeve, and the bottom of the lead passing through the protective sleeve and the extension tube.

[0006] Preferably, the protective sleeve is a hard pipe, the extension tube is a flexible pipe, and the outer wall of the extension tube is provided with a plurality of axial grooves.

[0007] Preferably, a plug-in block is integrally formed at the bottom of the protective shell, and the protective sleeve passes through the plug-in block.

[0008] Preferably, an axial sliding block is provided on the outer wall of the protective sleeve, and a sliding groove in sliding contact with the sliding block is provided at the opening of the plug-in block.

[0009] Preferably, a limiting ring is coaxially arranged on the outer wall of the protective sleeve, and a spring is sleeved on the outer wall of the protective sleeve, and the spring abuts between the limiting ring and the main body.

[0010] Preferably, a spring sheet is connected between the pair of protective sleeves.

[0011] Preferably, a plurality of card blocks are evenly arranged on the inner wall of the protective shell, and an annular card groove is provided at the bottom of the main body, and the plurality of card blocks are inserted into the card groove.

[0012] The utility model provides a lead-type aluminum electrolytic capacitor, which has the beneficial effects of: by providing a protective sleeve, a limiting ring and an extension tube, the lead passes through the protective sleeve and the extension tube, and when the lead is bent, the protective sleeve and the extension tube play an effective protection role to prevent the relatively long capacitor lead from bending and breaking; at the same time, a protective shell is provided, and a card block on the protective shell is inserted into a card slot, so that the main body and the protective shell can be quickly disassembled and assembled, the lead of the capacitor is effectively protected, and the installation is relatively fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an isometric view of a lead-type aluminum electrolytic capacitor proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of a lead-type aluminum electrolytic capacitor proposed by the utility model;

[0015] Figure 3 This is an exploded diagram of a lead-type aluminum electrolytic capacitor proposed by the utility model;

[0016] Figure 4 This is an enlarged view of the A-section structure of a lead-type aluminum electrolytic capacitor proposed by the utility model.

[0017] In the figure: 1 main body, 2 card slot, 3 lead, 4 protective shell, 5 card block, 6 spring, 7 spring, 8 protective sleeve, 9 limit ring, 10 extension tube, 11 slider, 12 plug-in block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-4 A lead-type aluminum electrolytic capacitor includes a capacitor body 1, a pair of leads 3 are welded to the bottom of the body 1, a protective shell 4 is sleeved on the bottom of the body 1, the lead 3 passes through the bottom of the protective shell 4, a pair of protective sleeves 8 are slidably arranged at the bottom of the protective shell 4, an extension tube 10 is integrally formed at the bottom of the protective sleeve 8, and the bottom of the lead 3 passes through the protective sleeve 8 and the extension tube 10.

[0020] The protective sleeve 8 is a hard pipe, and the extension tube 10 is a flexible pipe. The outer wall of the extension tube 10 is provided with multiple axial grooves. The bottom of the protective shell 4 is integrally formed with a plug-in block 12. The protective sleeve 8 passes through the plug-in block 12, and the lead 3 passes through the protective sleeve 8 and the extension tube 10. When the lead 3 is bent, the protective sleeve 8 and the extension tube 10 provide effective protection to prevent the longer capacitor lead 3 from bending and breaking.

[0021] The outer wall of the protective sleeve 8 is provided with an axial slider 11, and the opening of the plug-in block 12 is provided with a sliding groove that slides in contact with the slider 11. The outer wall of the protective sleeve 8 is coaxially provided with a limit ring 9, and the outer wall of the protective sleeve 8 is sleeved with a spring 7, which abuts between the limit ring 9 and the main body 1. The set spring 7 plays a buffering role, further providing buffering protection for the lead 3.

[0022] A spring piece 6 is connected between a pair of protective sleeves 8, and a plurality of card blocks 5 are evenly arranged on the inner wall of the protective shell 4. An annular card slot 2 is provided at the bottom of the main body 1, and a plurality of card blocks 5 are inserted into the card slot 2. The set card blocks 5 are connected to the card slot 2. When disassembling and assembling the protective shell 4, it only needs to be plugged in and out, and the disassembly and assembly is quick and convenient.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lead-type aluminum electrolytic capacitor, comprising a capacitor body (1), a pair of lead wires (3) welded to the bottom of the body (1), characterized in that: The bottom of the main body (1) is sleeved with a protective shell (4), the lead wire (3) passes through the bottom of the protective shell (4), a pair of protective sleeves (8) are slidably arranged at the bottom of the protective shell (4), the bottom of the protective sleeve (8) is integrally formed with an extension tube (10), and the bottom of the lead wire (3) passes through the protective sleeve (8) and the extension tube (10).

2. A lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: The protective sleeve (8) is a hard pipe, the extension tube (10) is a flexible pipe, and the outer wall of the extension tube (10) is provided with a plurality of axial grooves.

3. A lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: The bottom of the protective shell (4) is integrally formed with a plug-in block (12), and the protective sleeve (8) passes through the plug-in block (12).

4. A lead-type aluminum electrolytic capacitor according to claim 3, characterized in that: The outer wall of the protective sleeve (8) is provided with an axial sliding block (11), and the opening of the plug-in block (12) is provided with a sliding groove that is in sliding contact with the sliding block (11).

5. The lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: A limiting ring (9) is coaxially arranged on the outer wall of the protective sleeve (8), and a spring (7) is sleeved on the outer wall of the protective sleeve (8), wherein the spring (7) abuts between the limiting ring (9) and the main body (1).

6. The lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: A spring sheet (6) is connected between the pair of protective sleeves (8).

7. The lead-type aluminum electrolytic capacitor according to claim 1, characterized in that: The inner wall of the protective shell (4) is evenly provided with a plurality of card blocks (5), the bottom of the main body (1) is provided with an annular card slot (2), and the plurality of card blocks (5) are inserted into the card slot (2).

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