Novel aluminum electrolytic capacitor

Abstract

The utility model belongs to the technical field of capacitors, in particular to a novel aluminum electrolytic capacitor, which comprises a capacitor body, a protective device is sleeved outside the capacitor body and comprises an inner cylinder and an outer cylinder, spacing bars are fixed inside the inner cylinder and are in contact with the surface of the capacitor body, and the outer cylinder is in contact with the inner cylinder. The top of the inner cylinder and the top of the outer cylinder are fixedly connected, a cavity is formed between the inner cylinder and the outer cylinder, and rubber rings arranged at intervals are fixedly installed in the cavity. According to the utility model, in the protection device, the spacing bars of the inner cylinder are circumferentially arranged in a segmented manner, so that the capacitor body is stably supported; the inner cylinder, the outer cylinder and the middle rubber ring provide buffering, damping and protection, the body is protected against impact and erosion of external force, alignment of the inner hole and the outer hole facilitates heat dissipation, stable operation of the capacitor in a complex environment is guaranteed, the overall structure prolongs the service life of the capacitor, performance is improved, the development requirements of miniaturization and high performance of electronic equipment can be better met, and the application prospect is wide. The method is suitable for various complex working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to capacitor technical field, concretely is a novel aluminum electrolytic capacitor. BACKGROUND

[0002] With the continuous miniaturization and high performance development of electronic equipment, as a key energy storage and filtering element in electronic circuit, the application scene of aluminum electrolytic capacitor is increasingly widespread and complex. The traditional aluminum electrolytic capacitor gradually exposes many problems in the actual use process. On the one hand, due to the lack of effective protection structure, the key components such as electrodes and electrolyte inside the capacitor are easily damaged under the vibration environment of transportation, installation and long-term work, resulting in the decline of capacitor performance and the shortening of service life. For example, in the vibration working condition generated by the frequent start and stop of some industrial automation equipment, the failure rate of ordinary aluminum electrolytic capacitor is obviously increased.

[0003] On the other hand, with the increase of power density of electronic equipment, the heat accumulation generated by the capacitor during work becomes a big problem. The conventional design does not fully consider the heat dissipation demand, and the heat cannot be dissipated in time, which not only accelerates the drying and aging of electrolyte, but also causes the adverse consequences such as capacity drift and equivalent series resistance (ESR) increase, seriously affecting the stability of the circuit. Moreover, in some special environments, such as outdoor base station equipment in high temperature and high humidity, and electrical cabinet in factory workshop with more oil stains, the shell material of traditional aluminum electrolytic capacitor is easy to be eroded, and the protection performance is greatly discounted, further threatening the reliable operation of the capacitor and even the whole electronic system.

[0004] In view of the above difficulties, it is urgent to develop a new type of aluminum electrolytic capacitor with good protection and heat dissipation performance, which can adapt to multiple complex environments. The new type of aluminum electrolytic capacitor with unique protection device involved in the case emerges as the times require. CONTENT OF THE UTILITY MODEL

[0005] (I) Technical problem solved

[0006] In view of the deficiencies of the prior art, the utility model provides a new type of aluminum electrolytic capacitor, which solves the problems proposed in the background art.

[0007] (II) Technical scheme

[0008] The utility model discloses in order to realize the above-mentioned purpose specifically adopts the following technical scheme:

[0009] The utility model provides a new type aluminum electrolytic capacitor, including capacitor body, the protective device is sleeved outside the capacitor body, and the protective device includes inner tube and outer tube, the inside fixed interval strip of inner tube, interval strip contacts the surface of capacitor body, and the top of inner tube and outer tube is fixedly connected, the cavity is formed in the middle of inner tube and outer tube, interval arrangement rubber ring is fixedly installed in the cavity, the inner hole is set up on the inner tube, the outer hole is set up on the outer tube, and the rubber ring is not arranged at the inner hole and the outer hole.

[0010] Further, the interval strip has four groups, and each group contains a plurality of interval strips.

[0011] Further, the inner hole is aligned with the outer hole.

[0012] Further, the inner tube is an environmentally friendly plastic shell.

[0013] Further, the outer tube is a soft rubber shell.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a new type aluminum electrolytic capacitor, which has the following beneficial effects:

[0016] The utility model discloses, through its protective device, the interval strip of inner tube is segmented circumferentially arranged, and the capacitor body is stably supported, and the inner and outer tubes and the intermediate rubber ring provide buffering and damping and protection, protect the body from external force impact and erosion, and the inner and outer holes are aligned to facilitate heat dissipation, guarantee its stable operation in complex environment, prolong the capacitor life, improve performance, better adapt to the development demand of electronic equipment miniaturization and high performance, and be applicable to various complex working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0018] Fig. 2 It is the internal structure schematic diagram of the protective device of the utility model.

[0019] In the drawing: 1, capacitor body; 2, inner tube; 3, interval strip; 4, inner hole; 5, outer tube; 6, outer hole; 7, cavity; 8, rubber ring. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] like Figs. 1-2 As shown, a novel aluminum electrolytic capacitor according to one embodiment of the present invention includes a capacitor body 1, and a protective device is sleeved on the outside of the capacitor body 1.

[0023] The capacitor body 1, as the core part of the entire capacitor, includes electrodes, electrolytes, and dielectrics, and is the basic structure for realizing the capacitance function.

[0024] Energy storage: Capable of storing electrical charge, it regulates the voltage in a circuit through charging and discharging processes when the voltage changes, ensuring voltage stability. For example, in a power supply circuit, when the power supply output voltage fluctuates, capacitor 1 can release the stored electrical energy to prevent a sudden voltage drop; when the voltage rises, it can absorb electrical energy to prevent excessive voltage.

[0025] Filtering function: It filters different frequency components in the current. In DC circuits, it can filter out AC ripple, and in AC circuits, it can filter out unwanted frequency components, making the output current or voltage closer to the ideal state, and improving the stability of the circuit and the signal quality.

[0026] The inner cylinder 2 is an environmentally friendly plastic shell with an internal fixed spacer strip 3, which is fixed to the top of the outer cylinder 5 and has an inner hole 4.

[0027] Protecting the capacitor body 1: The inner cylinder 2 made of environmentally friendly plastic provides the first physical protective barrier for the capacitor body 1, which can prevent the capacitor body 1 from being damaged by external mechanical damage, such as minor collisions and scratches.

[0028] Fixed capacitor body 1: The capacitor body 1 is fixed inside by the internal spacer 3 to ensure that the position of the capacitor body 1 is relatively stable inside the protective device, so as to avoid its movement during use or transportation and prevent damage to the internal structure caused by position movement, such as electrode displacement, electrolyte leakage and other problems.

[0029] Assisting in heat dissipation: The inner hole 4 provides a channel for heat dissipation, allowing the heat generated by the capacitor during operation to be transferred to the outside through the inner hole 4.

[0030] The spacer bars 3 are divided into four groups, each group containing several spacer bars, and the four groups of spacer bars 3 are arranged in segments around the inner cylinder 2.

[0031] Circumferential fixation: The capacitor body 1 is supported and fixed from multiple directions, ensuring its stability in the circumferential direction, preventing rotation or lateral displacement, and ensuring that it always stays in the center of the protective device, enhancing the overall stability of the structure.

[0032] Dispersed stress: The force transmitted to the inner cylinder 2 is evenly distributed to the capacitor body 1, avoiding excessive local stress that may damage the capacitor body 1, especially when subjected to external pressure or impact force, the spacer bars 3 can play a role in buffering and dispersing pressure.

[0033] The inner hole 4 is provided on the inner cylinder 2 and aligned with the outer hole 6 on the outer cylinder 5.

[0034] Heat dissipation channel: As an important part of heat dissipation, it cooperates with the outer hole 6 to allow air to circulate inside and outside the protective device, facilitating heat exchange and promoting the discharge of heat generated during capacitor operation, avoiding performance degradation due to heat accumulation, and prolonging the service life of the capacitor.

[0035] The outer cylinder 5 is a soft rubber shell with an outer hole 6.

[0036] Buffering and shock absorption: The soft rubber outer cylinder 5 has good elasticity and flexibility, and can absorb and buffer external impact or vibration when it occurs, protecting the internal capacitor body 1 from damage.

[0037] Protection enhancement: As the outer layer of the protective device, it provides an additional protective layer for the capacitor, preventing physical damage from the outside world, such as falling, collision, etc. At the same time, the soft rubber can prevent moisture, dust and other impurities in the external environment from entering the interior of the protective device, causing corrosion or short circuit to the capacitor body 1.

[0038] Heat dissipation assistance: The outer hole 6 cooperates with the inner hole 4 to provide a channel for air convection, assisting in heat dissipation.

[0039] The outer hole 6 is provided on the outer cylinder 5 and aligned with the inner hole 4.

[0040] Heat dissipation channel: Together with the inner hole 4, it forms a heat dissipation path that allows air to form a convection current inside and outside the protective device, promoting heat dissipation and maintaining the normal operating temperature of the capacitor, preventing various performance problems caused by overheating, such as capacity drift, increased equivalent series resistance, etc.

[0041] The cavity 7 is located between the inner cylinder 2 and the outer cylinder 5, and the rubber ring 8 is fixed and installed inside.

[0042] Accommodate rubber ring 8: Provide installation and function space for rubber ring 8, so that rubber ring 8 can play the role of buffering and shock absorption in the protective device.

[0043] Enhance protection performance: As the intermediate layer between the inner cylinder 2 and the outer cylinder 5, it forms a multi-layer protection structure, improves the overall buffering and shock absorption and protection capability of the protective device, and protects the capacitor body 1 from external impact.

[0044] The rubber ring 8 is arranged in the cavity 7, and is not arranged at the inner hole 4 and the outer hole 6.

[0045] Buffering and shock absorption: When subjected to external vibration or impact, the rubber ring 8 deforms elastically, absorbs and buffers these external forces, minimizes their impact on the capacitor body 1, prevents the capacitor body 1 from being damaged due to vibration, and ensures that the capacitor can still work normally in harsh vibration environment.

[0046] Auxiliary fixation: It can also assist the structural stability of the inner cylinder 2 and the outer cylinder 5 to some extent, so that the relative position of the inner cylinder 2 and the outer cylinder 5 is more stable when subjected to external force, preventing excessive displacement or deformation between them.

[0047] When this new type of aluminum electrolytic capacitor works, the capacitor body 1 as the core component plays the role of energy storage and filtering. The spacer 3 inside the inner cylinder 2 supports and fixes the capacitor body 1, so that it remains stable in the protective device. The inner cylinder 2 and the outer cylinder 5 are integrally formed at the top, and the cavity 7 between them and the rubber ring 8 arranged in the middle play the role of buffering and shock absorption, which can effectively reduce the influence of external vibration on the capacitor body 1. At the same time, cooperate with the rubber ring 8 and the outer cylinder 5, it is convenient to install and disassemble the protective device, the inner hole 4 on the inner cylinder 2 and the outer hole 6 on the outer cylinder 5 are aligned, which is helpful for heat dissipation, air can form convection through the inner and outer holes 6, and carry away the heat generated during the work of the capacitor, so as to ensure the stable operation of the capacitor in complex environment, prolong the service life and improve the performance.

[0048] As shown in Fig. 2 In some embodiments, the spacer 3 has four groups, and each group contains several spacers. The four groups of spacers 3 are arranged in segments around the inner cylinder 2. This segmented arrangement can be optimized according to the shape and stress condition of the capacitor body 1, avoiding the problem of local stress concentration caused by continuous arrangement.

[0049] As shown in Fig. 2 In some embodiments, the inner hole 4 and the outer hole 6 are aligned, which is convenient for oiling the protective device to meet the rapid heat dissipation requirement.

[0050] As shown in Fig. 2 In some embodiments, the inner cylinder 2 is an environmentally friendly plastic shell with a certain shape and energy saving and environmental protection.

[0051] As Fig. 2 shown, in some embodiments, the outer cylinder 5 is a soft rubber shell, convenient to hold, install and disassemble, and has a certain protection.

[0052] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A novel aluminum electrolytic capacitor, comprising a capacitor body (1), characterized in that: The capacitor body (1) is fitted with a protective device, which includes an inner cylinder (2) and an outer cylinder (5). The inner cylinder (2) has a fixed spacer strip (3) inside, which contacts the surface of the capacitor body (1). The tops of the inner cylinder (2) and the outer cylinder (5) are fixedly connected. A cavity (7) is formed between the inner cylinder (2) and the outer cylinder (5). A spaced rubber ring (8) is fixedly installed in the cavity (7). The inner cylinder (2) has an inner hole (4), and the outer cylinder (5) has an outer hole (6). The rubber ring (8) is not located at the inner hole (4) and the outer hole (6).

2. The novel aluminum electrolytic capacitor according to claim 1, characterized in that: The spacer bar (3) has four sets, each set containing several spacer bars, and the four sets of spacer bars (3) are arranged in segments around the circumference inside the inner cylinder (2).

3. The novel aluminum electrolytic capacitor according to claim 1, characterized in that: The inner hole (4) is aligned with the outer hole (6).

4. A novel aluminum electrolytic capacitor according to claim 1, characterized in that: The inner cylinder (2) is an environmentally friendly plastic shell.

5. A novel aluminum electrolytic capacitor according to claim 1, characterized in that: The outer cylinder (5) is a soft rubber shell.

Images