Shock-resistant aluminum electrolytic capacitor

Abstract

The utility model discloses an anti-seismic aluminum electrolytic capacitor, which comprises a shell, a core arranged in the shell and outgoing lines connected to two ends of the core, an anti-seismic buffer structure is arranged in the shell, and the anti-seismic buffer structure surrounds the surface of the core. A sealing cover is arranged at the top of the interior of the shell, a shock insulation pad is bonded to the top of the shell, the shock insulation pad is connected with the sealing cover, and the top of the outgoing line sequentially penetrates through the interior of the sealing cover and the interior of the shock insulation pad and extends to the top of the shock insulation pad. However, a conventional aluminum electrolytic capacitor lacks a special damping design and cannot effectively buffer and absorb external vibration energy, and when equipment is vibrated, the vibration is directly transmitted to the capacitor, so that the internal structure of the capacitor is damaged, and the service life of the capacitor is shortened.

Description

Technical Field

[0001] This utility model relates to the field of capacitors, and in particular to a shock-resistant aluminum electrolytic capacitor. Background Technology

[0002] Aluminum electrolytic capacitors are commonly used electronic components in electronic devices and are widely used in various circuits, playing an important role in filtering, coupling, and energy storage. However, in practical applications, especially in some electronic devices with high stability requirements, such as aerospace equipment, automotive electronic equipment, and industrial automation control equipment, aluminum electrolytic capacitors face severe shock resistance challenges.

[0003] Currently, Chinese utility model patent CN221304469U discloses an aluminum electrolytic capacitor with good heat dissipation effect. The heat dissipation effect of the capacitor body is increased by the combination of heat dissipation components and heat-conducting aluminum plates. The heat-conducting aluminum plates increase the contact area with the outside world, which improves the heat dissipation effect. At the same time, they are fixedly connected to the mesh cover shell, which makes the installation stability of the mesh cover shell higher. Through the cooperation of ball bearings, bolts, mounting blocks and card plate, the cover plate is more stable and firm, while preventing the cover plate from falling off and the capacitor body falling directly out, thus protecting the capacitor body.

[0004] While existing aluminum electrolytic capacitors have good heat dissipation performance, traditional conventional aluminum electrolytic capacitors lack specialized shock absorption design and cannot effectively buffer and absorb external vibration energy. When the equipment is subjected to vibration, the vibration is directly transmitted to the capacitor, causing damage to its internal structure and shortening the capacitor's service life. Utility Model Content

[0005] The main purpose of this utility model is to provide a shock-resistant aluminum electrolytic capacitor, which aims to solve the problem that although existing aluminum electrolytic capacitors have good heat dissipation, conventional aluminum electrolytic capacitors lack a special shock-absorbing design and cannot effectively buffer and absorb external vibration energy. When the equipment is vibrated, the vibration is directly transmitted to the capacitor, causing damage to its internal structure and shortening the service life of the capacitor.

[0006] To achieve the above objectives, this utility model proposes a shock-resistant aluminum electrolytic capacitor comprising a shell, a core disposed inside the shell, and leads connected to both ends of the core. The shell is provided with a shock-resistant buffer structure, which surrounds the surface of the core. A sealing cover is provided at the top of the shell, and a vibration-damping pad is adhered to the top of the shell. The vibration-damping pad is connected to the sealing cover. The top of the leads passes through the interior of the sealing cover and the vibration-damping pad in sequence and extends to the top of the vibration-damping pad.

[0007] The seismic buffer structure includes a first buffer layer disposed on the surface of the core, a connecting layer disposed on the surface of the first buffer layer, and a second buffer layer disposed on the surface of the connecting layer.

[0008] Preferably, the first buffer layer is made of a highly elastic silicone gel material, and the highly elastic silicone gel material is closely attached to the surface of the core.

[0009] Preferably, the connecting layer is made of high-strength engineering plastic and has a honeycomb structure.

[0010] Preferably, the honeycomb structure formed by the connecting layer has sound-absorbing cotton filling the pores.

[0011] Preferably, both the second buffer layer and the shock-absorbing pad are made of rubber elastomer material, and the surface of the second buffer layer is in close contact with the inner wall of the outer shell.

[0012] Preferably, a connecting wire is provided at the bottom of the lead wire, and the connection between the connecting wire and the core is made by welding.

[0013] Preferably, the surface of the connecting wire is fitted with a metal sleeve, and the top of the metal sleeve is connected to the lead wire, and a filler layer is provided between the metal sleeve and the side opposite to the connecting wire.

[0014] In the technical solution of this utility model, an anti-vibration buffer structure is set between the outer shell and the core, which can provide all-round protection for the core from the inside out. The first buffer layer can fit tightly against the core and effectively buffer the direct impact of vibration. The connecting layer can disperse and absorb vibration energy, while the second buffer layer further enhances the shock absorption effect, forming a multi-layer and efficient anti-vibration protection system, which greatly improves the anti-vibration capability of the aluminum electrolytic capacitor. Furthermore, the vibration isolation pad can isolate and buffer the vibration between the capacitor and the mounting surface, further improving the anti-vibration performance of the capacitor and enhancing the stability and reliability of the capacitor in various vibration environments as a whole. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2This is a schematic diagram showing the connection between the outer shell, the shock-absorbing structure, and the core in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the anti-seismic buffer structure according to an embodiment of the present utility model;

[0019] Figure 4 This is an exploded view of the connecting layer in an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the connection between the metal sleeve and the lead wire in an embodiment of this utility model.

[0021] Explanation of reference numerals: 1. Outer shell; 2. Core; 3. Lead wire; 4. Shock-resistant buffer structure; 41. First buffer layer; 42. Connecting layer; 43. Second buffer layer; 5. Sealing cap; 6. Vibration isolation pad; 7. Connecting wire; 8. Metal sleeve; 9. Filling layer.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] 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.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This utility model provides a shock-resistant aluminum electrolytic capacitor, which aims to solve the problem that although existing aluminum electrolytic capacitors have good heat dissipation, conventional aluminum electrolytic capacitors lack a special shock-absorbing design and cannot effectively buffer and absorb external vibration energy. When the equipment is vibrated, the vibration is directly transmitted to the capacitor, causing damage to its internal structure and shortening the capacitor's service life.

[0028] like Figure 1-5 As shown, the present invention provides a shock-resistant aluminum electrolytic capacitor, including a shell 1, a core 2 disposed inside the shell 1, and lead wires 3 connected to both ends of the core 2. The shell 1 is provided with a shock-resistant buffer structure 4, which surrounds the surface of the core 2. A sealing cover 5 is provided at the top inside the shell 1, and a vibration isolation pad 6 is adhered to the top of the shell 1. The vibration isolation pad 6 is connected to the sealing cover 5. The top of the lead wire 3 passes through the interior of the sealing cover 5 and the vibration isolation pad 6 in sequence and extends to the top of the vibration isolation pad 6.

[0029] The seismic buffer structure 4 includes a first buffer layer 41, which is disposed on the surface of the core 2. A connecting layer 42 is disposed on the surface of the first buffer layer 41, and a second buffer layer 43 is disposed on the surface of the connecting layer 42.

[0030] In the technical solution of this utility model, the shock-absorbing structure 4 is set between the outer shell 1 and the core 2, which can provide all-round protection for the core 2 from the inside out. The first buffer layer 41 can fit tightly against the core 2, effectively buffering the direct impact of vibration; the connecting layer 42 can disperse and absorb vibration energy, while the second buffer layer 43 further enhances the shock absorption effect, forming a multi-layer, efficient shock-absorbing protection system, which greatly improves the shock resistance of the aluminum electrolytic capacitor. Furthermore, the vibration isolation pad 6 can isolate and buffer the vibration between the capacitor and the mounting surface, further improving the shock resistance of the capacitor and enhancing the stability and reliability of the capacitor in various vibration environments.

[0031] Please refer to the following: Figure 3The first buffer layer 41 is made of highly elastic silicone gel material, and the highly elastic silicone gel material is tightly attached to the surface of the core 2. In this embodiment, by using highly elastic silicone gel material to tightly attach the first buffer layer 41 to the surface of the core 2, the good flexibility and elasticity of the silicone gel can tightly wrap the core 2, effectively fill the irregular gaps on the surface of the core 2, and buffer the direct impact of vibration on the core 2 from all directions, thereby improving the protection effect on the core 2 and further enhancing the shock resistance of the capacitor. At the same time, the silicone gel also has good insulation and chemical stability, and will not have an adverse effect on the performance of the core 2.

[0032] For further information, please continue to refer to [link / reference]. Figure 3 The connecting layer 42 is made of high-strength engineering plastic and has a honeycomb structure. In this embodiment, the honeycomb structure of the connecting layer 42, made of high-strength engineering plastic, has excellent mechanical properties and can effectively disperse and absorb vibration energy. The unique geometry of the honeycomb structure allows it to distribute the force evenly when subjected to external forces, avoiding local stress concentration and improving the stability and seismic resistance of the entire seismic buffer structure 4. At the same time, the high-strength engineering plastic also has a certain degree of rigidity, which can provide stable support for the second buffer layer 43.

[0033] Please continue to refer to this. Figure 4 The honeycomb structure formed by the connecting layer 42 has sound-absorbing cotton filling its pores. In this embodiment, filling the pores of the honeycomb structure with sound-absorbing cotton not only further enhances the absorption capacity of vibration energy, but also effectively reduces the noise generated by vibration, reducing noise interference of the capacitor in a vibration environment. At the same time, the sound-absorbing cotton also has a certain heat insulation property, which helps to maintain the temperature stability inside the capacitor.

[0034] Please refer to Figure 3 Both the second buffer layer 43 and the vibration isolation pad 6 are made of rubber elastomer material, and the surface of the second buffer layer 43 is tightly attached to the inner wall of the outer shell 1. In this embodiment, since both the second buffer layer 43 and the vibration isolation pad 6 are made of rubber elastomer material, which has a high elastic modulus and good damping characteristics, it can form an effective shock absorption barrier between the outer shell 1 and the internal structure, as well as on the mounting surface of the outer shell 1. The second buffer layer 43 is tightly attached to the inner wall of the outer shell 1, further enhancing the buffering and absorption capacity of vibration and reducing the transmission of vibration from the outer shell 1 to the core 2. The vibration isolation pad 6 isolates the vibration transmitted from the outer shell 1 and the mounting surface, improving the overall shock resistance of the capacitor and ensuring that the capacitor can be well protected under vibration environments in different directions.

[0035] Please refer to Figure 5A connecting wire 7 is provided at the bottom of the lead wire 3, and the connection between the connecting wire 7 and the core 2 is made by welding. In this embodiment, the core 2 is connected by welding through the connecting wire 7 at the bottom of the lead wire 3. This connection method provides a strong and reliable electrical connection, ensuring stable current transmission between the lead wire 3 and the core 2. The welded connection has high strength and can withstand a certain amount of vibration stress, reducing the risk of loosening or breaking of the connection point under vibration, ensuring the stable electrical performance of the capacitor, and improving the reliability of the capacitor under vibration.

[0036] Additionally, please refer to Figure 5 A metal sleeve 8 is fitted onto the surface of the connecting wire 7, and the top of the metal sleeve 8 is connected to the lead wire 3. A filler layer 9 is provided between the metal sleeve 8 and the opposite side of the connecting wire 7. In this embodiment, by fitting a metal sleeve 8 onto the surface of the connecting wire 7 and providing a filler layer 9 between the metal sleeve 8 and the connecting wire 7, the metal sleeve 8 can enhance the mechanical strength of the connecting wire 7 and protect it from external vibration and mechanical damage. The filler layer 9 further fills the gap between the metal sleeve 8 and the connecting wire 7, improving the stability and sealing of the connection, preventing relative displacement between the connecting wire 7 and the metal sleeve 8 during vibration, enhancing the seismic performance of the entire connection structure, and ensuring the reliability of the electrical connection of the capacitor in complex vibration environments.

[0037] It should be noted that the working principle, connection method and specific structure of the core and other structures proposed in this utility model are all existing technologies, and therefore will not be described in detail in this utility model.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A shock-resistant aluminum electrolytic capacitor, characterized in that, The shock-resistant aluminum electrolytic capacitor includes a shell (1), a core (2) disposed inside the shell (1), and lead wires (3) connected to both ends of the core (2). The shell (1) is provided with a shock-resistant buffer structure (4), and the shock-resistant buffer structure (4) surrounds the surface of the core (2). A sealing cover (5) is provided at the top inside the shell (1), and a vibration isolation pad (6) is adhered to the top of the shell (1). The vibration isolation pad (6) is connected to the sealing cover (5). The top of the lead wire (3) passes through the interior of the sealing cover (5) and the vibration isolation pad (6) in sequence and extends to the top of the vibration isolation pad (6). The seismic buffer structure (4) includes a first buffer layer (41), which is disposed on the surface of the core (2). A connecting layer (42) is disposed on the surface of the first buffer layer (41), and a second buffer layer (43) is disposed on the surface of the connecting layer (42).

2. The shock-resistant aluminum electrolytic capacitor according to claim 1, characterized in that, The first buffer layer (41) is made of a highly elastic silicone gel material, and the highly elastic silicone gel material is closely attached to the surface of the core (2).

3. The shock-resistant aluminum electrolytic capacitor according to claim 1, characterized in that, The connecting layer (42) is made of high-strength engineering plastic and has a honeycomb structure.

4. The shock-resistant aluminum electrolytic capacitor according to claim 3, characterized in that, The honeycomb structure formed by the connecting layer (42) is filled with sound-absorbing cotton inside its pores.

5. The shock-resistant aluminum electrolytic capacitor according to claim 1, characterized in that, The second buffer layer (43) and the shock-absorbing pad (6) are both made of rubber elastomer material, and the surface of the second buffer layer (43) is closely attached to the inner wall of the outer shell (1).

6. The shock-resistant aluminum electrolytic capacitor according to claim 1, characterized in that, A connecting line (7) is provided at the bottom of the lead wire (3), and the connection between the connecting line (7) and the core (2) is made by welding.

7. The shock-resistant aluminum electrolytic capacitor according to claim 6, characterized in that, The surface of the connecting line (7) is fitted with a metal sleeve (8), and the top of the metal sleeve (8) is connected to the lead wire (3). A filler layer (9) is provided between the metal sleeve (8) and the side opposite to the connecting line (7).

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