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High-precision TMR current sensor for DC metering

A current sensor, high-precision technology, applied in the measurement of current/voltage, measurement of electrical variables, voltage/current isolation, etc., can solve the problems of poor heat dissipation, easy to be interfered by magnetic fields, and inconvenient for current sensor maintenance and repair, etc. Achieve the effect of improving functionality, assisting heat dissipation, and avoiding damage

Pending Publication Date: 2022-01-21
国网河北省电力有限公司营销服务中心 +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-precision TMR current sensor for DC measurement to solve the problems of poor heat dissipation, inconvenient maintenance and repair of the current sensor, and susceptibility to magnetic field interference proposed by the above-mentioned background technology

Method used

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  • High-precision TMR current sensor for DC metering
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  • High-precision TMR current sensor for DC metering

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1-7 , the present invention provides a technical solution: a high-precision TMR current sensor for DC measurement, including: 1. The main body of the protective shell; 2. The front cooling grille; 3. The main controller; 4. The temperature sensor; 5. Warning light; 6. Alarm bell; 7. Circulating fluid tank; 8. Liquid inlet pipe; 9. Liquid outlet pipe; 10. Sealing cover; 11. Circulating pump; 12. Cooling circulation pipe; 13. Fixed limit piece...

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Abstract

The invention discloses a high-precision TMR current sensor for direct current metering. The high-precision TMR current sensor comprises a protective shell main body, a front heat dissipation grid and a main controller, wherein the front heat dissipation grid is fixedly connected to the top of the front of the protective shell main body, and the main controller is fixedly connected to the middle part of one side of the protective shell main body; a temperature sensor is fixedly connected to the other side of the main controller, warning lamps are fixedly connected to the two sides of a front face of the protective shell body, warning bells are fixedly connected to the bottoms of the warning lamps, and a circulating liquid box is fixedly connected to the other side of the top in the protective shell body. According to the high-precision TMR current sensor for direct-current metering, a good magnetic field interference resisting effect can be achieved through the anti-interference mechanism, the situation that the detection precision and the service life of the current sensor are reduced due to magnetic field interference is avoided, convenience is brought to installation of workers due to the installation of the fixing plate, and functionality of the device is improved through the temperature control alarm mechanism; and meanwhile, when the current sensor works abnormally, related workers can be reminded in time.

Description

technical field [0001] The invention relates to the technical field of current sensors, in particular to a high-precision TMR current sensor for DC measurement. Background technique [0002] The current sensor is a detection device that senses the information of the measured current, and transforms the information sensed by the detection into an electrical signal that meets certain standards or other required forms of information output to meet the transmission of information. , processing, storage, display, recording and control requirements; current sensors, also known as magnetic sensors, can be used in household appliances, smart grids, electric vehicles, wind power generation, etc. [0003] The current sensor itself is often accompanied by a certain degree of heat during the working process. The existing current sensor is not equipped with a temperature control structure, which leads to the risk of burning out the current sensor during high-intensity work. The existing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00G01R15/18
CPCG01R19/00G01R15/18
Inventor 李宏胜柳长发刘利浩刘二刚董婧张增丽
Owner 国网河北省电力有限公司营销服务中心
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