Magnetic isolation vibration bracket for magnetosensitive element

Abstract

The invention discloses a magnetic isolation vibration bracket for a magnetosensitive element. The magnetic isolation vibration bracket comprises a bracket body and a cover board, wherein the bracket body has a ring body shape; the lower part of the bracket body is connected with a vibration table; the inner part of the bracket body is connected with the element; a magnetic isolation material 4J32 is adopted, so that an outside magnetic field is ensured to be isolated; and the bracket body has a high vibration characteristic. The cover board is also made of the magnetic isolation material 4J32; and the function of the magnetic isolation material 4J32 of the cover board is matched with that of the bracket body, so that a closed space is formed and used for isolating the magnetic field. Special slot openings are formed on the bracket body and the cover board and used for making a test cable penetrate and stopping the magnetic field from entering. The magnetic isolation vibration bracket is used for performing a mechanical environment test on the element which is very sensitive to the magnetic field, can well isolate the magnetic field, has a high vibration characteristic, and has the characteristics of simple structure, convenience in manufacturing, proper cost, easy operation and good using effect.

Description

technical field [0001] The invention relates to a magnetic isolation vibrating support for magnetic components. Background technique [0002] Certain electronic products and electronic components need vibration tests in the production process to check their adaptability to the mechanical environment. Usually, the tests are directly installed on the test bracket and carried out on the electromagnetic vibration table. The national standard GB / T5170.14 -1985 "Electric and Electronic Products Environmental Test Equipment Basic Parameter Identification Method for Vibration (Sinusoidal) Test Electric Vibration Table" and National Metrology Verification Regulations "JJG948-1999" give indicators for the magnetic flux leakage rate of various electromagnetic vibration tables, but although some vibration tables To meet the indicators, some anti-magnetic components will still be disturbed by the magnetic field. It is impossible for an electromagnetic vibrating table not to generate a ...

AI Technical Summary

Problems solved by technology

[0002] Certain electronic products and electronic components need vibration tests in the production process to check their adaptability to the mechanical environment. Usually, the tests are directly installed on the test bracket and carried out on the electromagnetic vibration table. The national standard GB / T5170.14 -1985 "Electric and Electronic Products Environmental Test Equipment Basic Parameter Identification Method for Vibration (Sinusoidal) Test Electric Vibration Table" and National Metrology Verification Regulations "JJG948-1999" give indicators for the magnetic flux leakage rate of various electromagnetic vibration tables, but although some vibration tables Meet the index, some anti-magnetic components will still be disturbed by the magnetic field

It is impossible for an electromagnetic vibrating table not to generate a magnetic field during work, and it is difficult for ordinary vibrating table manufacturers to carry out equipment transformation. At present, there are patents in the industry for reducing the leakage magnetic field of the vibrating table itself, but the cost is high. If you want to pass the test You have to try your luck on different vibration tables to find one with a particularly low magnetic flux leakage rate, but it will take time and testing costs

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