A type of surface-mount aluminum electrolytic capacitor

Abstract

This utility model discloses a surface-mount aluminum electrolytic capacitor, including a circuit board. An aluminum electrolytic capacitor block is fixedly connected to the upper side of the circuit board. A protective structure is provided on the outer side of the aluminum electrolytic capacitor block. The protective structure includes a protective block disposed on the outer side of the aluminum electrolytic capacitor block. A circular groove is formed on the lower side of the protective block, and several heat dissipation holes are formed on the upper side inside the circular groove. A slotted groove is formed on the lower side of the protective block, and a slotted groove is fixedly connected to the upper side of the circuit board. Compared with the prior art, the protective structure can protect the capacitor from the impact of external objects, and prevent the capacitor from being damaged by external objects, thus extending the service life of the capacitor.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering technology, and in particular to a surface-mount aluminum electrolytic capacitor. Background Technology

[0002] The basic working principle of aluminum electrolytic capacitors is similar to other capacitors, storing charge based on the electric field between two electrodes. When a voltage is applied between the anode and cathode, the alumina film on the surface of the anode aluminum foil forms an insulating layer, preventing direct current from passing through but allowing alternating current to pass. During charging, electrons accumulate at the anode, making it negatively charged, while the cathode becomes positively charged due to the loss of electrons, thus creating an electric field between the two electrodes to store charge. During discharging, the stored charge is released through an external circuit, providing electrical energy to the circuit. Surface mount aluminum electrolytic capacitors are electronic components mainly used in electronic equipment for energy storage, filtering, coupling, and voltage regulation.

[0003] The utility model with application number "CN202020288458.2" describes a mounting aluminum electrolytic capacitor. The aluminum electrolytic capacitor is mounted and fixed on a circuit board, but there is no protective structure on the outside. This makes it easy for the aluminum electrolytic capacitor and the circuit board to break and separate during a collision, which can lead to damage to the capacitor and reduce its service life. Utility Model Content

[0004] The purpose of this invention is to provide a surface-mount aluminum electrolytic capacitor that overcomes the lack of protective structure when aluminum electrolytic capacitors are mounted and fixed on circuit boards.

[0005] To achieve the above objectives, a surface-mount aluminum electrolytic capacitor is provided, including a circuit board, an aluminum electrolytic capacitor block is fixedly connected to the upper side of the circuit board, and a protective structure is provided on the outer side of the aluminum electrolytic capacitor block;

[0006] The protective structure includes a protective block disposed on the outside of the aluminum electrolytic capacitor block. A circular groove is formed on the lower side of the protective block, and several heat dissipation holes are formed on the upper side inside the groove. An inverted slot is also formed on the lower side of the protective block, and the inverted slot is fixedly connected to the upper side of the circuit board. This design facilitates protection of the capacitor from impact damage.

[0007] According to the aforementioned mounting aluminum electrolytic capacitor, the aluminum electrolytic capacitor block is disposed inside a circular groove, and the protective block is movably connected to the circuit board. This facilitates capacitor protection.

[0008] According to the aforementioned mounting aluminum electrolytic capacitor, the aperture-shaped block is disposed inside the aperture-shaped groove and slidably connected to the protective block. This facilitates the sliding of the aperture-shaped block.

[0009] According to the aforementioned mounting aluminum electrolytic capacitor, a circular groove is formed on the upper side of the circuit board, and a circular hole is formed on the upper side of the protective block. Four circular grooves and holes are provided, and bolts are installed inside the circular holes and the circular grooves to facilitate fixing the protective block.

[0010] According to the aforementioned mounting aluminum electrolytic capacitor, four bolts are provided. This facilitates control over the rotation of the bolts.

[0011] According to the aforementioned mounting aluminum electrolytic capacitor, the bolt and protective block are threadedly connected, and the bolt and circuit board are also threadedly connected. This facilitates the rotation of the bolt.

[0012] The present invention has the following beneficial effects: Compared with the prior art, the protective structure can protect the capacitor from the impact of external objects, and at the same time avoid the capacitor being damaged by external objects, thus extending the service life of the capacitor. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a schematic diagram of the overall front view of a surface-mount aluminum electrolytic capacitor according to this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a part of the mounting aluminum electrolytic capacitor according to the present invention;

[0016] Figure 3 This is a schematic diagram of the protective structure for a surface-mounted aluminum electrolytic capacitor according to the present invention.

[0017] Legend:

[0018] 1. Circuit board; 2. Aluminum electrolytic capacitor block; 3. Protective structure; 301. Protective block; 302. Circular groove; 303. Heat dissipation hole; 304. I-shaped groove; 305. I-shaped block; 306. Circular groove; 307. Circular hole; 308. Bolt. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1-3This utility model embodiment provides a surface-mount aluminum electrolytic capacitor, which includes a circuit board 1, an aluminum electrolytic capacitor block 2 fixedly connected to the upper side of the circuit board 1, and a protective structure 3 provided on the outer side of the aluminum electrolytic capacitor block 2.

[0021] The protective structure 3 includes a protective block 301, which is disposed on the outside of the aluminum electrolytic capacitor block 2. A circular groove 302 is formed on the lower side of the protective block 301. A heat dissipation hole 303 is formed on the upper side inside the circular groove 302. Several heat dissipation holes 303 are provided. An orifice-shaped groove 304 is formed on the lower side of the protective block 301. An orifice-shaped block 305 is fixedly connected to the upper side of the circuit board 1. The aluminum electrolytic capacitor block 2 is disposed inside the circular groove 302. The protective block 301 and the circuit board 1 are movably connected. The orifice-shaped block 305 is disposed inside the orifice-shaped groove 304 and is slidably connected to the protective block 301. A circular groove 306 is formed on the upper side of the circuit board 1. A circular hole 307 is formed on the upper side of the protective block 301. Four circular grooves 306 and four circular holes 307 are provided. Bolts 308 are provided inside the circular holes 307 and the circular grooves 306. Four bolts 308 are provided. The bolts 308 are threadedly connected to the protective block 301 and the circuit board 1.

[0022] When the staff prepares to install the protective structure 3, they slide the orifice-shaped block 305 of the circuit board 1 into the orifice-shaped groove 304. Then, with the help of a tool, they rotate the bolt 308 into the circular groove 306 and the circular hole 307, thus fixing the protective block 301 in place. To remove the protective block 301, the staff uses a tool to rotate the bolt 308 out of the circular groove 306 and the circular hole 307. By holding the protective block 301 and sliding the orifice-shaped block 305 out of the orifice 304, the protective structure 3 can be installed. The protective structure 3 can protect the capacitor from the impact of external objects, prevent the capacitor from being damaged by external objects, and extend the service life of the capacitor.

[0023] Working principle: When the operator prepares to install and fix the capacitor, the aluminum electrolytic capacitor block 2 is first fixed to the circuit board 1 using surface mount technology. Then, the protective block 301 of the protective structure 3 is installed on the outside of the aluminum electrolytic capacitor block 2. The aluminum electrolytic capacitor block 2 is installed on the outside of the protective block 301. The heat dissipation holes 303 on the outside of the protective block 301 are used for heat dissipation of the aluminum electrolytic capacitor block 2. When the protective block 301 is protecting the aluminum electrolytic capacitor block 2, the orifice-shaped block 305 on the circuit board 1 will slide into the orifice-shaped groove 304 of the protective block 301. The orifice-shaped block 305 increases the stability of the protective block 301. In this way, the aluminum electrolytic capacitor block 2 is protected, avoiding damage from impact and extending the service life of the aluminum electrolytic capacitor block 2.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A surface-mount aluminum electrolytic capacitor, characterized in that, Includes a circuit board (1), an aluminum electrolytic capacitor block (2) is fixedly connected to the upper side of the circuit board (1), and a protective structure (3) is provided on the outer side of the aluminum electrolytic capacitor block (2); The protective structure (3) includes a protective block (301), which is disposed on the outside of the aluminum electrolytic capacitor block (2). A circular groove (302) is provided on the lower side of the protective block (301), and a heat dissipation hole (303) is provided on the upper side inside the circular groove (302). Several heat dissipation holes (303) are provided. A mouth-shaped groove (304) is provided on the lower side of the protective block (301), and a mouth-shaped block (305) is fixedly connected to the upper side of the circuit board (1).

2. The surface-mount aluminum electrolytic capacitor according to claim 1, characterized in that, The aluminum electrolytic capacitor block (2) is disposed inside the circular groove (302), and the protective block (301) and the circuit board (1) are movably connected.

3. A surface-mount aluminum electrolytic capacitor according to claim 1, characterized in that, The orifice block (305) is disposed inside the orifice groove (304) and is slidably connected to the protective block (301).

4. A surface-mount aluminum electrolytic capacitor according to claim 1, characterized in that, The circuit board (1) has a circular groove (306) on its upper side and a circular hole (307) on its upper side. There are four circular grooves (306) and four circular holes (307). Bolts (308) are installed inside the circular holes (307) and inside the circular grooves (306).

5. A surface-mount aluminum electrolytic capacitor according to claim 4, characterized in that, Four bolts (308) are provided.

6. A surface-mount aluminum electrolytic capacitor according to claim 4, characterized in that, The bolt (308) and the protective block (301) are threaded together, and the bolt (308) and the circuit board (1) are threaded together.

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