Resistance box

A resistance box and resistance technology, applied in the direction of resistors, adjustable resistors, circuits, etc., can solve the problems of cumbersome reading process and affect the efficiency of calibration work, and achieve reduced volume and weight, easy to read, and easy to carry Effect

Inactive Publication Date: 2020-11-27
GUANGZHOU CEPREI CALIBRATION & TESTING CENT SERVICE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing high-voltage and high-resistance boxes cannot directly indicate the output resistance value, and the entire reading process is too cumbersome, which affects the calibration work efficiency

Method used

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit 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.

[0029] refer to figure 1 and figure 2 , shows a resistance box according to an embodiment of the present invention, comprising: a box body A, a plurality of resistance dials C, an output high end 14 and an output low end 3, wherein each resistance dial C includes a resistance dial D, a dial 10 and rotary switch B; the resistance plate D and the dial 10 are placed in the box A, and the rot...

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Abstract

The invention discloses a resistance box, which comprises a box body, a plurality of resistance turntables, an output high end and an output low end. Each resistance turntable comprises a resistance disc, a character disc and a rotary switch. The resistance turntable and the character disc are arranged in the box body. The rotary switch comprises a first rotating shaft used for placing a dial, a second rotating shaft used for placing a resistor disc, and a coupling connecting the first rotating shaft and the second rotating shaft. The box body comprises a display panel, and the display panel is provided with an indication window used for displaying numerical values on the character disc. The resistor disc comprises a plurality of resistors connected in series, a plurality of connecting contact pieces arranged at the two ends of each resistor respectively, two contact switches and two wiring terminals connected with the output ends connected in series, first contacts of the two contactswitches are fixedly connected with a second rotating shaft, and second contacts of the two contact switches are movably connected with the connecting contact pieces. The two wiring terminals of the plurality of resistance discs are connected in series, and the output ends of the series connection are respectively connected with the output high end and the output low end. According to the invention, data reading can be carried out conveniently, and carrying is convenient.

Description

technical field [0001] Embodiments of the present invention relate to the technical field related to resistance boxes, in particular to a resistance box. Background technique [0002] The high-voltage high-resistance box is a standard resistance appliance commonly used in the verification and calibration of insulation resistance meters. The high-voltage and high-resistance boxes produced at home and abroad generally adopt a decimal turntable structure, and the high-voltage and high-resistance boxes with a resistance range of TΩ are generally composed of about ten resistance turntables. The existing high-voltage and high-resistance boxes have the disadvantages of large volume, heavy weight, and inconvenient transportation and on-site calibration. [0003] The reading of the output resistance value of the existing high-voltage high-resistance box requires 3 steps. First, read the value indicated by the knob of each resistance disc in turn (the value is printed on the front p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C10/06H01C10/16H01C10/50G01R35/00
CPCG01R35/007H01C10/06H01C10/16H01C10/50
Inventor 陈志雄罗期任赵训波李勇秀
Owner GUANGZHOU CEPREI CALIBRATION & TESTING CENT SERVICE
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