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Preparation process of special aluminum electrolytic capacitor for electric vehicle controller

A technology of aluminum electrolytic capacitors and electric vehicle controllers, which is applied in the direction of electrolytic capacitors, liquid electrolytic capacitors, capacitor manufacturing, etc., can solve problems such as restricting the service life of electric vehicle controllers and reducing reliability, and achieve improved nailing effects and improved Reliability, heat reduction effect

Pending Publication Date: 2021-11-02
安远秦旭科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a preparation process of aluminum electrolytic capacitors for electric vehicle controllers. Ordinary, a technical problem that greatly restricts the service life of the electric vehicle controller and leads to a significant drop in its reliability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This specific embodiment is to prepare aluminum electrolytic capacitors, and the aluminum electrolytic capacitors are dedicated to electric vehicle controllers. The specific steps of the process are:

[0026] Step 1. Connect the positive and negative aluminum foil nails to the lead wires (make the positive foil withstand voltage above 142VF and the specific volume 4.8uf / cm 2 above; make the withstand voltage of the negative electrode foil more than 2.0VF, and the specific volume is 300uf / cm 2 Above), use the CP wire as the lead wire, the lead wire is made of G4 aluminum wire, the model is 20190, the diameter of the CP wire is more than 0.85μm, and the thickness of the nail pattern is controlled within 42μm, and the nail resistance is less than 0.5mΩ, at the same time, affix the negative pad foil on the riveting position of the negative electrode through a nailing machine, and wind the electrolytic paper in the middle liner on the automatic winding machine to form a core...

Embodiment 2

[0031] This specific embodiment is to prepare aluminum electrolytic capacitors, and the aluminum electrolytic capacitors are dedicated to electric vehicle controllers. The specific steps of the process are:

[0032] Step 1. Connect the positive and negative aluminum foil nails to the lead wires (make the positive foil withstand voltage above 142VF and the specific volume 4.8uf / cm 2 above; make the withstand voltage of the negative electrode foil more than 2.0VF, and the specific volume is 300uf / cm 2 Above), use the CP wire as the lead wire, the lead wire is made of G4 aluminum wire, the model is 20190, the diameter of the CP wire is more than 0.85μm, and the thickness of the nail pattern is controlled within 42μm, and the nail resistance is less than 0.5mΩ, at the same time, affix the negative pad foil on the riveting position of the negative electrode through a nailing machine, and wind the electrolytic paper in the middle liner on the automatic winding machine to form a core...

Embodiment 3

[0037] This specific embodiment is to prepare aluminum electrolytic capacitors, and the aluminum electrolytic capacitors are dedicated to electric vehicle controllers. The specific steps of the process are:

[0038] Step 1. Connect the positive and negative aluminum foil nails to the lead wires (make the positive foil withstand voltage above 142VF and the specific volume 4.8uf / cm 2above; make the withstand voltage of the negative electrode foil more than 2.0VF, and the specific volume is 300uf / cm 2 Above), use the CP wire as the lead wire, the lead wire is made of G4 aluminum wire, the model is 20190, the diameter of the CP wire is more than 0.85μm, and the thickness of the nail pattern is controlled within 42μm, and the nail resistance is less than 0.5mΩ, at the same time, affix the negative pad foil on the riveting position of the negative electrode through a nailing machine, and wind the electrolytic paper in the middle liner on the automatic winding machine to form a core ...

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Abstract

The invention discloses a preparation process of a special aluminum electrolytic capacitor for an electric vehicle controller, and aims to solve the technical problems that the service life of the electric vehicle controller is greatly restricted and the reliability of the electric vehicle controller is greatly reduced due to the fact that the magnitude of current borne by the aluminum electrolytic capacitor used by the existing electric vehicle controller is relatively common. The process roughly comprises the following steps of: nailing positive and negative aluminum foils to a leading-out wire, pasting a negative electrode pad foil at a negative electrode riveting position through a nailing machine, and winding a core package by intermediate pad electrolytic paper on an automatic winding machine; placing the core package in a high-temperature drying box to be dried, then taking out the core package and placing in electrolyte, and soaking the core package in the electrolyte in a vacuumizing and air pressurization mode; packaging the core package absorbed with the electrolyte by using an aluminum shell and a rubber sealing plug; and sleeving the packaged naked capacitor with an outer sheath sleeve with insulation and protection effects, and arranging the packaged naked capacitor in parallel according to positive and negative polarities for charging repair to obtain the aluminum electrolytic capacitor.

Description

technical field [0001] The invention belongs to the field of preparation of new electronic components, in particular to a preparation process of a special aluminum electrolytic capacitor for an electric vehicle controller, in particular to a preparation process of a special aluminum electrolytic capacitor used by an electric vehicle in an abnormal environment so that it is not easy to be damaged. Background technique [0002] Aluminum electrolytic capacitor, also known as capacitor, is an energy storage element. Its structure can be divided into three types: fixed capacitor, semi-variable capacitor, and variable capacitor. It is characterized by large capacity, but it also has large leakage, large error, and poor stability. , often used as AC bypass and filtering, and also used for signal coupling when the requirements are not high, so it is widely used in electronic circuits. It can be said that all electronic products must be filtered by aluminum electrolytic capacitors whe...

Claims

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Application Information

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IPC IPC(8): H01G9/145H01G9/045H01G13/00H01G13/02
CPCH01G9/145H01G9/045H01G13/02H01G13/006H01G13/00
Inventor 左文全张力维张运嘉
Owner 安远秦旭科技有限公司
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