Bolt type aluminum electrolytic capacitor

Abstract

The utility model relates to the field of capacitors, and discloses a bolt type aluminum electrolytic capacitor. The bolt type aluminum electrolytic capacitor comprises an outer protective shell, the lower end of the outer protective shell is provided with a plurality of fixing pins, the lower ends of the fixing pins are fixedly connected with first threaded openings, the lower ends of the first threaded openings are provided with gaskets, and the gaskets are connected to the surfaces of the first threaded openings in a sleeving mode. The upper surface of the gasket is in contact with the lower end surface of the fixed pin, the lower end of the fixed pin is provided with the replacement pin, the interior of the replacement pin is provided with a threaded hole, and the gasket can reduce the contact between the replacement pin and the surface of the fixed pin and reduce the loss caused by friction; and then the threaded port square block is in threaded connection with the threaded port II at the lower end of the replacement pin, and the threaded port square block is fixed on the replacement pin, so that different working requirements can be met according to the length of the pin of the capacitor through the operation, the use is convenient, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of capacitors, in particular to a bolt type aluminum electrolytic capacitor. BACKGROUND

[0002] The bolt type aluminum electrolytic capacitor is a common type of capacitor that has multiple advantages, making it perform well in many application scenarios. First, the bolt design makes the installation and maintenance of the capacitor more convenient. Due to its unique structure, this capacitor can be easily fixed on the circuit board and will not cause additional damage when disassembled, facilitating replacement or repair. Second, the bolt type aluminum electrolytic capacitor has a large capacity, which can meet the needs of various high-capacity application scenarios, such as power filtering, signal coupling, etc. In addition, this capacitor also has a long service life, thanks to its high-quality aluminum foil and electrolyte, which can work stably for a long time in high-temperature and high-humidity environments, reducing the failure rate caused by aging. Third, the bolt type aluminum electrolytic capacitor has good temperature characteristics, which can maintain stable electrical performance within a wide temperature range, ensuring the normal operation of equipment under different environmental conditions. Finally, this type of capacitor has strong ripple current bearing capacity and can handle high current fluctuations, making it suitable for applications that require frequent charging and discharging, such as frequency converters, motor drive systems, etc. In summary, the bolt type aluminum electrolytic capacitor plays an important role in electronic devices due to its convenient installation, large capacity, long life, good temperature characteristics, and strong ripple current bearing capacity.

[0003] As disclosed in the publication number: CN216849674U, an aluminum electrolytic capacitor is disclosed. The aluminum electrolytic capacitor comprises a shell, a bottom plate, a plastic sleeve, and an explosion-proof shell. The bottom plate is located at the lower end of the shell, and the plastic sleeve is nested on the surface of the shell. The explosion-proof shell is nested on the surface of the plastic sleeve, and the inner wall of the explosion-proof shell is provided with a cavity. The beneficial effects of the present application are as follows: through the elastic deformation of the protective pad and the buffer spring in the cavity, the protective pad can play a good protective role when the aluminum electrolytic capacitor explodes. At the same time, the buffer spring will deform under the impact force of the aluminum electrolytic capacitor explosion, thereby achieving the buffering of the impact force of the aluminum electrolytic capacitor explosion and preventing damage to surrounding elements caused by the aluminum electrolytic capacitor explosion. In addition, through the toughness and fastening hoop of the plastic sleeve, the impact force generated by the aluminum electrolytic capacitor explosion can be well buffered, further preventing damage to surrounding elements caused by the aluminum electrolytic capacitor explosion.

[0004] However, the length of the pin in the common application is fixed, which cannot be flexibly changed according to the use requirements, thereby being inconvenient for subsequent operation and use. UTILITY MODEL CONTENT

[0005] The application aims at providing a bolt type aluminum electrolytic capacitor to solve the problem of adjusting the length of the pin.

[0006] The technical scheme adopted by the application is as follows: a bolt type aluminum electrolytic capacitor comprises an outer protective shell, a plurality of fixed pins are arranged at the lower end of the outer protective shell, a threaded port one is fixedly connected to the lower end of the fixed pin, a gasket is arranged at the lower end of the threaded port one, the gasket is sleeved on the surface of the threaded port one, the upper surface of the gasket is in contact with the lower end surface of the fixed pin, a replacement pin is arranged at the lower end of the fixed pin, a threaded hole is arranged in the replacement pin, the threaded port one is threadedly connected to the replacement pin, a threaded port two is fixedly connected to the lower end of the replacement pin, and a threaded port square block is arranged at the lower end of the replacement pin, the threaded port square block is provided with the same threaded hole as the replacement pin, and the threaded port two is threadedly connected to the threaded port square block.

[0007] By adopting the above technical scheme, the length of the pin of the capacitor can be changed to meet different requirements in use, when the length of the pin needs to be increased, the threaded port square block can be unscrewed from the fixed pin, the replacement pin is taken out, the threaded hole in the replacement pin is aligned with the threaded port one, the replacement pin and the fixed pin are screw-connected, the gasket can reduce the contact between the replacement pin and the fixed pin, and the wear caused by friction is reduced, and then the threaded port square block is threadedly connected to the threaded port two at the lower end of the replacement pin, and the threaded port square block is fixed on the replacement pin, so that the length of the pin of the capacitor can be changed to meet different working requirements, the use is convenient, and the work efficiency is improved.

[0008] In a preferred embodiment, the inner part of the outer protective shell is provided with a capacitor body 2.

[0009] By adopting the above technical scheme, the capacitor body is arranged to ensure the normal operation of the structure, so that the connection and use of the structural components are facilitated, and the work personnel can operate conveniently.

[0010] In a preferred embodiment, the lower end of the outer protective shell is fixedly connected with an insulating connecting block, and the lower end of the insulating connecting block is fixedly connected with a fixed pin.

[0011] By adopting the above technical scheme, the insulating connecting block facilitates the connection between the isolated capacitor body and the internal elements, ensures that the capacitor will not be directly contacted to cause the stability of the capacitor to decrease, and facilitates the connection and use between the structural components.

[0012] In a preferred embodiment, the outer protective shell is composed of multiple layers of materials, and the inner part of the outer protective shell is provided with an aluminum shell layer.

[0013] By adopting the technical scheme, the aluminum shell layer has good mechanical strength and toughness as an external protective layer of the capacitor, is light in weight, easy to process and form, strong in corrosion resistance, and can be used for a long time in various environments, thereby ensuring stable and reliable products.

[0014] In a preferred embodiment, a stainless steel layer is arranged at the lower end of the aluminum shell layer in the inner part of the outer protective shell, and a tinned steel layer is arranged at the lower end of the stainless steel layer in the inner part of the outer protective shell.

[0015] By adopting the technical scheme, the stainless steel layer has excellent corrosion resistance and wear resistance, and can maintain good performance even in harsh environments. The tinned steel layer has a thin layer of tin on the surface, which improves corrosion resistance and reduces the chance of contact with air and moisture, thereby ensuring long-term stable operation of the capacitor.

[0016] In a preferred embodiment, an oxide film layer is arranged at the lower end of the tinned steel layer in the inner part of the outer protective shell.

[0017] By adopting the technical scheme, the oxide film layer can significantly improve the corrosion resistance and insulation performance of the structure, and also increase the surface hardness, reduce scratches and wear, and facilitate the operation and use of the structure.

[0018] In a preferred embodiment, the surfaces of the capacitor main body and the lower end structure of the outer protective shell except the surface of the insulating connecting block are sprayed with anti-rust paint.

[0019] By adopting the technical scheme, the insulating paint improves the electrical insulation performance and prevents the occurrence of electric leakage or discharge, and the anti-rust paint prevents metal corrosion and oxidation, thereby prolonging the service life.

[0020] In summary, due to the adoption of the above technical scheme, the beneficial effects of the present application are:

[0021] In the present application, different requirements can be met by changing the pins of the capacitor during use. When the length of the pin needs to be increased, the threaded block can be unscrewed from the fixed pin, and then the replacement pin can be taken and replaced. The threads of the replacement pin are aligned with the threads of the threaded block, and the replacement pin and the fixed pin are connected by screwing. The gasket can reduce the contact between the surface of the replacement pin and the fixed pin, and reduce the wear caused by friction. Then, the threaded block is threadedly connected to the threaded hole two at the lower end of the replacement pin, and the threaded block is fixed on the replacement pin. Through the operation, the length of the pin of the capacitor can be adjusted to meet different working requirements, which is convenient to use and improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view of the capacitor structure of the present application.

[0023] Figure 2 The disassembled schematic diagram of the capacitor structure in the application;

[0024] Figure 3 The schematic diagram of the material composition of the outer protective shell in the application.

[0025] Marked in the figure: 1, outer protective shell; 2, capacitor body; 3, insulating connecting block; 4, fixed pin; 5, threaded port one; 6, gasket; 7, replacement pin; 8, threaded port square; 9, threaded port two; 10, aluminum shell layer; 11, stainless steel layer; 12, tin-plated steel layer; 13, oxide film layer. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below in conjunction with the embodiments of the application. Obviously, the described embodiments are some embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application. EMBODIMENT

[0027] REFERENCE Figures 1-2 A bolt type aluminum electrolytic capacitor comprises an outer protective shell 1, the lower end of the outer protective shell 1 is provided with a plurality of fixed pins 4, the lower end of the fixed pin 4 is fixedly connected with a threaded port one 5, the lower end of the threaded port one 5 is provided with a gasket 6, the gasket 6 is sleeved on the surface of the threaded port one 5, the upper surface of the gasket 6 contacts the lower end surface of the fixed pin 4, the lower end of the fixed pin 4 is provided with a replacement pin 7, the inside of the replacement pin 7 is provided with a threaded hole, the threaded port one 5 is threadedly connected with the replacement pin 7, the lower end of the replacement pin 7 is fixedly connected with a threaded port two 9, the lower end of the replacement pin 7 is provided with a threaded port square 8, the threaded port square 8 is provided with the same threaded hole as the replacement pin 7, the threaded port two 9 is threadedly connected with the threaded port square 8. In use, the length of the pin of the capacitor can be changed to meet different needs. When the length of the pin needs to be increased, the threaded port square 8 can be unscrewed from the fixed pin 4, then the replacement pin 7 is taken, the threaded hole in the replacement pin 7 is aligned with the threaded port one 5, the replacement pin 7 and the fixed pin 4 are screw-connected, the gasket 6 can reduce the contact between the replacement pin 7 and the fixed pin 4, and reduce the wear caused by friction. Then the threaded port square 8 is threadedly connected with the threaded port two 9 at the lower end of the replacement pin 7, and the threaded port square 8 is fixed on the replacement pin 7. Through the operation, the length of the pin of the capacitor can be changed to meet different working needs, which is convenient to use and improves the work efficiency.

[0028] REFERENCE Figures 1-2The capacitor main body 2 is arranged in the outer protective shell, which guarantees the normal operation of the structure, facilitates the connection and use of the structural assembly, and facilitates the operation and control of the staff.

[0029] With reference to Figures 1-3 The lower end of the outer protective shell 1 is fixedly connected with an insulating connecting block 3, and the lower end of the insulating connecting block 3 is fixedly connected with a fixed pin 4. The insulating connecting block 3 facilitates the connection between the isolation capacitor main body 2 and the internal elements, ensures that the stability of the capacitor will not be reduced due to direct contact, and facilitates the connection and use between the structural assemblies.

[0030] With reference to Figure 3 The outer protective shell 1 is composed of multiple layers of materials. An aluminum shell layer 10 is arranged in the inner part of the outer protective shell 1. The aluminum shell layer 10 has good mechanical strength and toughness as the outer protective layer of the capacitor, is light in weight, is easy to process and shape, has strong corrosion resistance, and can be used for a long time in various environments, ensuring the stability and reliability of the product.

[0031] With reference to Figure 3 A stainless steel layer 11 is arranged at the lower end of the aluminum shell layer 10 in the inner part of the outer protective shell 1. A tin-plated steel layer 12 is arranged at the lower end of the stainless steel layer 11 in the inner part of the outer protective shell 1. The stainless steel layer 11 has excellent corrosion resistance and wear resistance, and can maintain good performance even in harsh environments. The tin-plated steel layer 12 has a thin layer of tin on the surface, which improves corrosion resistance and reduces the opportunity to contact air and moisture, ensuring long-term stable operation of the capacitor.

[0032] With reference to Figure 3 An oxide film layer 13 is arranged at the lower end of the tin-plated steel layer 12 in the inner part of the outer protective shell 1. The oxide film layer 13 can significantly improve the corrosion resistance and insulation performance of the structure, and also increase the surface hardness, reduce scratches and wear, and facilitate the operation and use of the structure.

[0033] With reference to Figures 1-3 The surfaces of the capacitor main body 2 are sprayed with a bonding paint, and the surfaces of the lower end structure of the outer protective shell 1 except the surface of the insulating connecting block 3 are sprayed with an anti-rust paint. The insulating paint improves the electrical insulation performance and prevents the occurrence of electric leakage or discharge phenomenon. The anti-rust paint prevents metal corrosion and oxidation, prolonging the service life.

[0034] The implementation principle of the subject embodiment is as follows:

[0035] In use, different requirements can be met by changing the pins of the capacitor. When the length of the pin needs to be increased, the threaded block 8 is unscrewed from the fixed pin 4, the replacement pin 7 is taken, the threaded hole in the replacement pin 7 is aligned with the threaded hole 5, the replacement pin 7 and the fixed pin 4 are screwed, the gasket 6 can reduce the contact between the replacement pin 7 and the fixed pin 4, and reduce the wear caused by friction, and then the threaded block 8 is screwed to the threaded hole 9 at the lower end of the replacement pin 7, and the threaded block 8 is fixed on the replacement pin 7. Through the operation, the length of the pin of the capacitor can be adjusted to meet different working requirements, which is convenient to use and improves the work efficiency. By using the structure, the length of the structure assembly can be appropriately increased during the use of the equipment, thereby improving the adaptability of the equipment.

[0036] The above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A stud-type aluminum electrolytic capacitor comprising an outer protective case (1), characterized in that: The lower end of the outer protective shell (1) is provided with a plurality of fixed pins (4), the lower end of the fixed pin (4) is fixedly connected with a threaded port one (5), the lower end of the threaded port one (5) is provided with a gasket (6), the gasket (6) is sleeved on the surface of the threaded port one (5), the upper surface of the gasket (6) contacts the lower end surface of the fixed pin (4), the lower end of the fixed pin (4) is provided with a replacement pin (7), the inside of the replacement pin (7) is provided with a threaded hole, the threaded port one (5) is threadedly connected with the replacement pin (7), the lower end of the replacement pin (7) is fixedly connected with a threaded port two (9), the lower end of the replacement pin (7) is provided with a threaded port block (8), the threaded port block (8) is provided with the same threaded hole as the replacement pin (7), the threaded port two (9) is threadedly connected with the threaded port block (8).

2. A stud-type aluminum electrolytic capacitor as claimed in claim 1, characterized by: The inside of the outer protective shell (1) is provided with a capacitor body (2).

3. A stubbed aluminum electrolytic capacitor as claimed in claim 2, wherein: The lower end of the outer protective shell (1) is fixedly connected with an insulating connecting block (3), the lower end of the insulating connecting block (3) is fixedly connected with a fixed pin (4).

4. A stubbed aluminum electrolytic capacitor as claimed in claim 1, wherein: The outer protective shell (1) is composed of multiple layers of materials, the inside of the outer protective shell (1) is provided with an aluminum shell layer (10).

5. A stubbed aluminum electrolytic capacitor as claimed in claim 4, wherein: The inside of the outer protective shell (1) is provided with a stainless steel layer (11) below the aluminum shell layer (10), the inside of the outer protective shell (1) is provided with a tinned steel layer (12) below the stainless steel layer (11).

6. A sintered aluminum electrolytic capacitor as claimed in claim 5, wherein: The inside of the outer protective shell (1) is provided with an oxide film layer (13) below the tinned steel layer (12).

7. A sintered aluminum electrolytic capacitor as claimed in claim 3, wherein: The surface of the capacitor body (2) is sprayed with insulating paint, and the surface of the outer protective shell (1) is sprayed with rust-proof paint except the surface of the insulating connecting block (3).

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