An aluminum electrolytic capacitor with a separator structure

Abstract

This utility model relates to the field of capacitor technology, specifically to an aluminum electrolytic capacitor with a separator structure. The utility model includes a capacitor body, an explosion-proof groove on the upper surface of the capacitor body, an anti-collision shell slidably connected to the arc surface of the capacitor body, two winding rods fixedly connected to the arc surface of the capacitor body, two connecting ropes fixedly connected to the arc surface of the anti-collision shell, a slot on the arc surface of the winding rod, a limit plate fixedly connected to one end of each winding rod, and a rubber ring fixedly connected to one end of each connecting rope. The size of the rubber ring is adapted to the size of the winding rod. This invention solves the problem that when the capacitor body is subjected to external impacts, slight deformation of the capacitor body leads to changes in the internal electrode spacing, directly affecting the capacitance of the capacitor and causing the capacitance value to deviate from its rated range, thus affecting the normal operation of the entire circuit.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, and in particular to an aluminum electrolytic capacitor with a separator structure. Background Technology

[0002] Aluminum electrolytic capacitors are made by inserting a bent aluminum strip as the positive electrode into an aluminum cylinder containing a liquid electrolyte as the negative electrode. They also require DC voltage treatment to form an oxide film on the positive electrode as the dielectric. Their characteristics include large capacitance, but also high leakage current, poor stability, and polarity, making them suitable for power supply filtering or low-frequency circuits. In the field of electronic equipment, aluminum electrolytic capacitors are widely used. As electronic equipment continues to develop towards miniaturization and high performance, higher demands are placed on the performance and stability of aluminum electrolytic capacitors. Traditional aluminum electrolytic capacitors face many challenges during use. In complex working environments, such as industrial production sites and outdoor electronic equipment, capacitors are highly susceptible to external impacts. Because their casings are usually quite fragile, even slight collisions can cause deformation of the capacitor body.

[0003] Chinese patent application CN201520368548.1 discloses an aluminum electrolytic capacitor. The key technical points of the solution are: the present invention has a simple structure and reasonable design. It can reduce the size of the electrolytic capacitor while maintaining the original level of function and performance. Moreover, by using negative foil to apply pressure, the capacitor's ability to withstand reverse voltage is improved, and the ripple resistance is greatly improved, which better meets the usage requirements of equipment such as welding machines and frequency converters.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: In complex working environments, such as industrial production sites and outdoor electronic equipment, capacitors are extremely susceptible to external impacts. When the capacitor body is impacted, it causes slight deformation, which in turn changes the spacing between the internal electrodes, directly affecting the capacitance of the capacitor. This results in the capacitance value deviating from its rated range, affecting the normal operation of the entire circuit. Therefore, to address the above problems, an aluminum electrolytic capacitor with a separation structure is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies where slight deformation of the capacitor body leads to changes in the internal electrode spacing, directly affecting the capacitor's capacitance and causing the capacitance value to deviate from its rated range, thus affecting the normal operation of the entire circuit. Therefore, this invention proposes an aluminum electrolytic capacitor with a separation structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an aluminum electrolytic capacitor with a partition structure, comprising a capacitor body, an explosion-proof groove formed on the upper surface of the capacitor body, an anti-collision shell slidably connected to the arc surface of the capacitor body, two winding rods fixedly connected to the arc surface of the capacitor body, and two connecting ropes fixedly connected to the arc surface of the anti-collision shell.

[0007] The aforementioned components achieve the following effects: they effectively protect the surface of the capacitor body by dividing it, thereby reducing the risk of deformation caused by external impacts, ensuring the stability of its internal structure, maintaining good electrical performance, and guaranteeing the reliable operation of the entire circuit system. They also prevent minor deformation of the capacitor body caused by external impacts, which could alter the internal electrode spacing, directly affecting the capacitor's capacitance and causing the capacitance value to deviate from its rated range, thus impacting the normal operation of the entire circuit and improving the stability of the device.

[0008] Preferably, the arc surface of the winding rod is provided with a slot, and one end of the winding rod is fixedly connected to a limiting plate.

[0009] The above components achieve the following effects: the slot provides a more stable winding and positioning point for the connecting rope, so as to ensure that the anti-collision shell can continuously and stably wrap the arc surface of the capacitor body, thereby enhancing the reliability of the protection of the capacitor body; the limiting plate restricts the movement of the connecting rope towards the end of the winding rod, thus preventing the connecting rope from slipping out of the winding rod during the winding process, which would result in the anti-collision shell not being able to be effectively fixed.

[0010] Preferably, one end of the connecting rope is fixedly connected to a rubber ring, the size of which is adapted to the size of the winding rod.

[0011] The effect achieved by the above-mentioned components is as follows: due to the good elasticity and flexibility of the rubber ring, it can fit tightly against the surface of the winding rod when the rubber ring is fitted onto the winding rod. This tight fit generates a large frictional force between the rubber ring and the winding rod, thereby effectively preventing the connecting rope from accidentally slipping off the winding rod.

[0012] Preferably, a plurality of anti-collision pads are fixedly connected to the arc surface of the anti-collision shell, and the anti-collision pads are made of rubber.

[0013] The effects achieved by the above components are as follows: the rubber anti-collision pad has good elasticity and buffering performance. When the capacitor is hit by an external collision, the anti-collision pad can first contact the collision object and absorb and disperse the collision energy through its own elastic deformation, reducing the impact force transmitted to the capacitor body. This further reduces the risk of the capacitor body being deformed or even damaged by external impacts, and better protects the internal structure and electrical performance of the capacitor.

[0014] Preferably, an explosion-proof compartment is slidably connected to the upper surface of the anti-collision shell, an L-shaped frame is fixedly connected to the arc surface of the explosion-proof compartment, a connecting block is fixedly connected to the arc surface of the anti-collision shell, a support plate is fixedly connected to the upper surface of the connecting block, a sliding rod is slidably inserted into the support plate, a semi-circular block is fixedly connected to one end of the sliding rod, a snap-fit ​​hole is opened on one side of the L-shaped frame, a first spring is sleeved on the arc surface of the sliding rod, and the two ends of the first spring are fixedly connected to the support plate and the semi-circular block respectively.

[0015] The effect achieved by the above components is as follows: Under certain abnormal conditions, such as overvoltage or overheating, the explosion-proof groove of the capacitor body may open to release gas. During this process, flying debris will be generated. The primary function of the explosion-proof chamber is to effectively block these flying debris. When the explosion-proof groove explodes, the explosion-proof chamber is above it, forming a physical barrier that can limit the flying debris to a certain range, prevent the flying debris from splashing into the surrounding environment, avoid injury and damage to surrounding personnel, other electronic components or equipment, and greatly improve the safety during use.

[0016] Preferably, the surface of the connecting block is fixedly connected to two positioning frames, and the two positioning frames are slidably connected to the surface of the L-shaped frame.

[0017] The effect achieved by the above components is that the surface of the positioning frame and the L-shaped frame are slidably connected, which can provide accurate guidance for the movement of the L-shaped frame, making it convenient for workers to quickly locate the insertion position of the L-shaped frame and improving the convenience of using the device.

[0018] In summary, the beneficial effects of this utility model are as follows:

[0019] This invention achieves the effect of segmenting and protecting the surface of the capacitor body, effectively reducing the risk of deformation caused by external impacts, ensuring the stability of its internal structure, maintaining good electrical performance, and guaranteeing the reliable operation of the entire circuit system. It avoids the capacitor body being slightly deformed by external impacts, which could lead to changes in the internal electrode spacing, directly affecting the capacitor's capacitance and causing the capacitance value to deviate from its rated range, thus affecting the normal operation of the entire circuit and improving the stability of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the anti-collision pad in this utility model;

[0022] Figure 3 In this utility model Figure 2Partial structural diagram;

[0023] Figure 4 This is a schematic diagram of the explosion-proof compartment in this utility model;

[0024] Figure 5 In this utility model Figure 4 Enlarged view of point A.

[0025] Legend: 1. Capacitor body; 2. Explosion-proof groove; 3. Anti-collision shell; 4. Winding rod; 5. Connecting rope; 6. Slot; 7. Limiting plate; 8. Rubber ring; 9. Anti-collision pad; 10. Explosion-proof compartment; 11. L-shaped frame; 12. Connecting block; 13. Support plate; 14. Sliding rod; 15. Semicircular block; 16. First spring; 17. Positioning frame. Detailed Implementation

[0026] Reference Figure 1-5As shown, this utility model provides a technical solution: an aluminum electrolytic capacitor with a partition structure, including a capacitor body 1, an explosion-proof groove 2 on the upper surface of the capacitor body 1, an anti-collision shell 3 slidably connected to the arc surface of the capacitor body 1, two winding rods 4 fixedly connected to the arc surface of the capacitor body 1, and two connecting ropes 5 fixedly connected to the arc surface of the anti-collision shell 3. When the operator presses the anti-collision shell 3, the anti-collision shell 3 slides downward on the arc surface of the capacitor body 1 until the anti-collision shell 3 wraps around the arc surface of the capacitor body 1. At this time, the connecting ropes 5 are pulled, causing the connecting ropes 5 to wrap and knot on the arc surface of the winding rods 4. This achieves the effect of partitioning and protecting the surface of the capacitor body 1, effectively reducing the damage caused by external impacts to the capacitor body 1. To mitigate the risk of deformation, ensure the stability of its internal structure, maintain good electrical performance, and guarantee the reliable operation of the entire circuit system, this device prevents the capacitor body 1 from being slightly deformed due to external impacts. This deformation would alter the internal electrode spacing, directly affecting the capacitor's capacitance and causing the capacitance value to deviate from its rated range, thus impacting the normal operation of the entire circuit. The device's stability is improved by providing a slot 6 on the arc surface of the winding rod 4, with a limiting plate 7 fixedly connected to one end. The slot 6 provides a more secure winding and positioning point for the connecting rope 5, ensuring that the anti-collision shell 3 can continuously and securely wrap the arc surface of the capacitor body 1, enhancing the reliability of protection for the capacitor body 1. The limiting plate 7 achieves... To restrict the movement of the connecting rope 5 towards the end of the winding rod 4, and to prevent the connecting rope 5 from slipping off the winding rod 4 during winding, thus ensuring the effective fixation of the anti-collision shell 3, a rubber ring 8 is fixedly connected to one end of the connecting rope 5. The size of the rubber ring 8 is adapted to the size of the winding rod 4. Due to the good elasticity and flexibility of the rubber ring 8, when the rubber ring 8 is fitted onto the winding rod 4, it can fit tightly against the surface of the winding rod 4. This tight fit generates a large frictional force between the rubber ring 8 and the winding rod 4, effectively preventing the connecting rope 5 from accidentally slipping off the winding rod 4. Several anti-collision pads 9 are fixedly connected to the arc surface of the anti-collision shell 3. The anti-collision pads 9 are made of rubber, which has good elasticity and... The anti-collision pad 9 provides buffering performance. When the capacitor is subjected to external impact, it can first contact the colliding object and absorb and disperse the impact energy through its own elastic deformation, reducing the impact force transmitted to the capacitor body 1. This further reduces the risk of deformation or even damage to the capacitor body 1 caused by external impact, and better protects the internal structure and electrical performance of the capacitor. The upper surface of the anti-collision shell 3 is slidably connected to the explosion-proof chamber 10. The arc surface of the explosion-proof chamber 10 is fixedly connected to the L-shaped frame 11. The arc surface of the anti-collision shell 3 is fixedly connected to the connecting block 12. The upper surface of the connecting block 12 is fixedly connected to the support plate 13. A sliding rod 14 is slidably inserted into the support plate 13. One end of the sliding rod 14 is fixedly connected to a semi-circular block 15. A snap-fit ​​hole is opened on one side of the L-shaped frame 11.A first spring 16 is fitted onto the arc surface of the sliding rod 14. The two ends of the first spring 16 are fixedly connected to the support plate 13 and the semicircular block 15, respectively. When workers need to shield the debris generated during the explosion-proof venting of the explosion-proof tank 2, they press the L-shaped frame 11. The L-shaped frame 11 moves downwards and rubs against the arc surface of the semicircular block 15. At this time, the collision force generated by the L-shaped frame 11 on the semicircular block 15 causes the sliding rod 14 to slide within the support plate 13, compressing the first spring 16 until the semicircular block 15 aligns with the locking hole of the L-shaped frame 11. Then, the rebound force of the first spring 16 causes the semicircular block 15 to insert into the locking hole of the L-shaped frame 11. Under certain abnormal conditions, such as overvoltage or overheating, the explosion-proof tank 2 may open for explosion-proof venting. This process generates flying debris. The primary function of the explosion-proof chamber 10 is to effectively block this debris. When the explosion-proof slot 2 explodes, the explosion-proof chamber 10, positioned above it, forms a physical barrier, confining the flying debris within a certain range and preventing it from splashing into the surrounding environment. This avoids injury or damage to nearby personnel, other electronic components, or equipment, greatly improving safety during use. Two positioning frames 17 are fixedly connected to the surface of the connecting block 12. These two positioning frames 17 are slidably connected to the surface of the L-shaped frame 11. This slidable connection provides accurate guidance for the movement of the L-shaped frame 11, allowing operators to quickly position the L-shaped frame 11 for insertion, thus improving the ease of use of the device.

[0027] Working principle: When protection of capacitor body 1 is required, the operator presses the anti-collision shell 3, causing it to slide down the arc surface of capacitor body 1 until it completely covers the arc surface. Then, the connecting rope 5 is pulled. Due to its good elasticity and flexibility, the rubber ring 8 at one end of the connecting rope 5 tightly adheres to the surface of the winding rod 4, generating significant friction to prevent the connecting rope 5 from slipping. During the winding and knotting process of the connecting rope 5 on the arc surface of the winding rod 4, the slot 6 provides a stable winding positioning point, and the limiting plate 7 restricts the movement of the connecting rope 5 to the end, ensuring that the connecting rope 5 is securely wound. This ensures that the anti-collision shell 3 continues to tightly wrap around capacitor body 1. Simultaneously, the rubber anti-collision pad 9 fixed on the arc surface of the anti-collision shell 3, when the capacitor is subjected to external impact, utilizes its good elasticity and buffering performance to first contact the colliding object, absorbing and dispersing the impact energy, reducing the impact force transmitted to capacitor body 1, lowering the risk of deformation or damage due to impact, and maintaining the internal structure. With stable structure and good electrical performance, the explosion-proof tank 2 may open to release gas in case of abnormal conditions such as overvoltage or overheating of the capacitor body 1. At this time, if the staff has prepared explosion-proof measures in advance, they can press the L-shaped frame 11 of the explosion-proof chamber 10. The L-shaped frame 11 moves downward and rubs against the arc surface of the semi-circular block 15, generating a collision force on the semi-circular block 15. This causes the sliding rod 14 to slide within the support plate 13, compressing the first spring 16. When the semi-circular block 15 is aligned with the snap-fit ​​hole of the L-shaped frame 11, the rebound force of the first spring 16 causes the semi-circular block 15 to insert into the snap-fit ​​hole, fixing the explosion-proof chamber 10 to the upper surface of the anti-collision shell 3. The two positioning frames 17 are slidably connected to the surface of the L-shaped frame 11, providing accurate guidance for the movement of the L-shaped frame 11 and facilitating operation. When the explosion-proof tank 2 explodes, the explosion-proof chamber 10 above it forms a physical barrier to block flying debris and limit the flying debris within a certain range, avoiding injury and damage to surrounding personnel, electronic components and equipment, and improving the safety of use.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An aluminum electrolytic capacitor with a separation structure, comprising a capacitor body (1), characterized in that: The upper surface of the capacitor body (1) is provided with an explosion-proof groove (2), the arc surface of the capacitor body (1) is slidably connected with an anti-collision shell (3), the arc surface of the capacitor body (1) is fixedly connected with two winding rods (4), and the arc surface of the anti-collision shell (3) is fixedly connected with two connecting ropes (5).

2. The aluminum electrolytic capacitor with a separation structure according to claim 1, characterized in that: The arc surface of the winding rod (4) is provided with a slot (6), and one end of the winding rod (4) is fixedly connected to a limiting plate (7).

3. The aluminum electrolytic capacitor with a separation structure according to claim 1, characterized in that: One end of the connecting rope (5) is fixedly connected to a rubber ring (8), the size of which is adapted to the size of the winding rod (4).

4. The aluminum electrolytic capacitor with a separation structure according to claim 1, characterized in that: The arc surface of the anti-collision shell (3) is fixedly connected with several anti-collision pads (9), and the anti-collision pads (9) are made of rubber.

5. The aluminum electrolytic capacitor with a separation structure according to claim 1, characterized in that: The upper surface of the anti-collision shell (3) is slidably connected to an explosion-proof chamber (10). An L-shaped frame (11) is fixedly connected to the arc surface of the explosion-proof chamber (10). A connecting block (12) is fixedly connected to the arc surface of the anti-collision shell (3). A support plate (13) is fixedly connected to the upper surface of the connecting block (12). A sliding rod (14) is slidably inserted into the support plate (13). A semi-circular block (15) is fixedly connected to one end of the sliding rod (14). A snap-fit ​​hole is opened on one side of the L-shaped frame (11). A first spring (16) is sleeved on the arc surface of the sliding rod (14). The two ends of the first spring (16) are fixedly connected to the support plate (13) and the semi-circular block (15) respectively.

6. The aluminum electrolytic capacitor with a separation structure according to claim 5, characterized in that: The surface of the connecting block (12) is fixedly connected to two positioning frames (17), and the two positioning frames (17) are slidably connected to the surface of the L-shaped frame (11).

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