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Closed-loop Hall current sensor

A current sensor, closed-loop Hall technology, applied in the direction of measuring current/voltage, instrument, measuring electrical variables, etc., can solve the problems of complex process, time-consuming, affecting production efficiency, etc., to ensure the heat dissipation effect, the process is simple, and the man-hour saving is achieved. Effect

Active Publication Date: 2012-09-19
ZHUZHOU CSR TIMES ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the assembly process of components in the closed-loop Hall current sensor currently on the market is complicated and time-consuming, which affects production efficiency, so it is necessary to improve

Method used

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  • Closed-loop Hall current sensor
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  • Closed-loop Hall current sensor

Examples

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with drawings and embodiments.

[0013] Examples such as figure 1 , Figure 4 The closed-loop Hall current sensor shown includes housing 1, coil 2, coil fixing frame 3, printed board 4, spacer column 5, triode 6, thermally conductive double-sided tape 7, heat sink 8, connector 9, spacer column 10. Adhesive tape 11, screw 12. A radiator is installed on the cooling plate 8, and a round hole is opened on the edge, and the main circuit board assembly including the Hall element is integrated on the printed board 4, and the edge of the printed board 4 is also provided with concentric circles corresponding to the cooling plate 8 Hole, the top of the coil fixing frame 3 is provided with a square hole stud 31, the square hole stud 31 can pass through the round hole, and the coil fixing frame is provided with a groove 32.

[0014] Assembly process such as figure 2 , image 3 As shown, first select the ther...

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PUM

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Abstract

The invention discloses a closed-loop Hall current sensor which comprises a triode, a radiating plate provided with a radiator, a main circuit board component, a connector, a coil and a coil fixing frame, wherein a circular hole is formed on the radiating plate; the main circuit board component is integrated with a printed board; a circular hole which is homocentric with the circular hole on the radiating plate is also formed on the printed board; a square hole screw stud is arranged above the coil fixing frame; the triode is fixed with the radiating plate through a heat-conductive double-sided tape; the square hole screw stud above the coil fixing frame passes through the circular hole of the printed board and the circular hole of the radiating plate in turn and then is fixed through a bolt; spacing pillars are sleeved between the printed board and the radiating plate and outside the square hole screw stud; the coil is bound under the coil fixing frame through the double-sided tape; the spacing pillar is also sleeved outside the connector; and the elements and components are loaded into a shell and are solidified by using pouring sealants.

Description

technical field [0001] The present invention relates to a closed-loop Hall current sensor. Background technique [0002] The closed-loop or magnetic balance Hall current sensor is a sensor that uses the Hall effect to convert a large current into a secondary small voltage signal, because it has a wide measurement range, good electrical isolation performance, high measurement accuracy, and good linearity. It has the characteristics of strong anti-interference ability of external electromagnetic and temperature factors, large current rise rate, fast response speed, strong overload capacity, simple and convenient installation, etc., and is widely used in industrial automation technology, detection technology and information processing. However, the assembly process of the components in the closed-loop Hall current sensor currently on the market is complicated and time-consuming, which affects the production efficiency, so it is necessary to improve it. Contents of the inventi...

Claims

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Application Information

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IPC IPC(8): G01R19/00G01R15/00
Inventor 米哲涛顾忠辉俞蕾朱胜平曹雷
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD