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Application of programmable hall in inner magnetic neutral switch

A technology of neutral switch and internal magnetic type, which is applied in the application field of programmable Hall internal magnetic neutral switch, can solve the problems of difficult production, poor consistency between magnet and Hall, etc., and achieve high production efficiency, Ease of production and processing, good application prospects

Inactive Publication Date: 2017-09-15
嘉默传感技术(上海)有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide an application of a programmable Hall internal magnetic neutral switch, which mainly solves the technical problems in the above-mentioned prior art, especially solves the problem of the consistency between the magnet and the Hall in the prior art. It has the advantages of simple structure, stable performance, fast response, long life, high safety and easy production.

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  • Application of programmable hall in inner magnetic neutral switch
  • Application of programmable hall in inner magnetic neutral switch
  • Application of programmable hall in inner magnetic neutral switch

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the examples.

[0016] The structure used in the present invention, such as figure 1 As shown, outer shell 1, inner shell 2, U-shaped samarium cobalt magnet 4 (temperature is -40°C to 150°C), PCBA, connecting pin 3, sealing ring 5, sealant, external metal gear block body 6 and metal The metal gear block formed by the rectangular part 7 of the gear block can rotate a certain angle with the shift shaft when shifting gears.

[0017] In the present invention, a U-shaped samarium-cobalt magnet 4 is provided at one end of the casing 1 (the operating temperature is -40°C to 150°C). There is a programmable Hall chip 8 at the opening of the U-shaped samarium-cobalt magnet 4. The mark of 8 faces outward and is nearly flush with the opening of the U-shaped samarium-cobalt magnet 4, and the magnetic field induced by Hall is within ±3mT when there is no external environmental interference.

[0018] One end o...

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Abstract

The invention relates to application of a programmable hall in an inner magnetic neutral switch. The inner magnetic neutral switch comprises an outer shell, an inner shell, a U-shaped samarium-cobalt magnet, and a metal gear block composed of an outer metal gear block main body and a metal gear block rectangular part, wherein during gear shifting, the metal gear block rotates by a certain angle along with a gear shifting shaft; the U-shaped samarium-cobalt magnet is arranged at one end in the outer shell; a programmable hall chip is arranged at an opening of the U-shaped samarium-cobalt magnet; a mark surface of the programmable hall chip faces outwards and is almost flush with the opening surface of the U-shaped samarium-cobalt magnet; one end of the U-shaped samarium-cobalt magnet corresponds to the metal gear block rectangular part; and the programmable hall chip is a hall chip of which sensitivity BOP and BRP can be determined according to on-site actual magnetic flux. According to the inner magnetic neutral switch, the problem that production difficulty is high due to the facts that in a conventional technology, consistency of the magnet and the hall is poor and the relative position requirement is relatively high is particularly solved, and the inner magnetic neutral switch has the advantages that structure is simple, performance is stable, response is quick, service life is long, safety is high, and production is facilitated.

Description

technical field [0001] The invention relates to the technical field of non-contact sensor switches for automobiles, in particular to the application of a programmable Hall internal magnetic neutral switch. Background technique [0002] With the development of automotive electronics and the application of new technologies, automotive sensors have made great progress, and as people's awareness of energy conservation and environmental protection has become stronger and stronger, the application of intelligent start-stop technology for neutral switches in manual transmission vehicles is particularly important. important. At present, there are two main types of Hall-type neutral switches on the market, one is the sensor external magnet type, and the other is the sensor internal magnet type. The external magnetic structure is simple and easy to mass-produce, but the internal magnetic structure is more complicated, and has high requirements for the consistency and relative positio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/42H03K17/90
CPCF16H63/42H03K17/90
Inventor 李光荣张应贵邓九香马耀
Owner 嘉默传感技术(上海)有限公司
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