Voltage detection switch structure for multifunctional combined terminal box for electric energy measurement
A combined junction box and voltage detection technology, which is applied in the direction of measuring electrical variables, voltage/current isolation, and measuring devices, to reduce the use of bolts, avoid bolt failure, and improve safety.
Active Publication Date: 2018-12-25
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology
[0005] In view of this, the present invention proposes a voltage detection switch structure for a multifunctional joint junction box for electric energy metering, aiming at solving the problem of improving the service life of the voltage detection switch
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[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0026] combine Figure 1-3 As shown, the embodiment of the present invention provides a junction box for electric energy metering, including: a box cover 16,...
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The invention provides a voltage detection switch structure for a multifunctional combined terminal box for electric energy measurement. The structure comprises a base and pressing type voltage switches, wherein voltage wiring terminals are arranged on the base; the voltage switches are arranged on the voltage wiring terminals to open or close circuits of the voltage wiring terminals; connecting grooves are formed at the lower parts of the two opposite side faces of the voltage switches; the two connecting grooves are connected with current wiring terminals; a switch button is arranged on theupper side face of each detection switch; and the switch buttons are pressed to control opening and closing of the two connecting grooves. Since the pressing type voltage detection switches are arranged on the voltage wiring terminals, the quantity if bolts used is reduced; failure in normal operation of the terminal box caused by bolt failure due to repeated loosening or tightening of the bolts during voltage detection is avoided; with the adoption of the pressing type voltage detection switches, the repeated operation of the bolts is avoided; and service lives of the voltage detection switches and the terminal box are greatly prolonged.
Description
technical field [0001] The invention relates to the technical field of combined junction boxes, in particular to a voltage detection switch structure for a multifunctional combined junction box for electric energy measurement. Background technique [0002] At present, the joint junction box for electric energy measurement is an important part of the secondary circuit of the metering. Its function is to connect the secondary line from the transformer to the terminal of the electric energy meter through the terminal of the joint junction box in series and parallel. By changing the junction box The position of the upper paddle changes the on-off state of the test circuit, which provides necessary conditions for the on-site calibration of the metering device, power inspection and replacement of the electric energy meter. [0003] However, the existing combined junction box for electric energy metering has the following problems in the use process: in the normal working state, th...
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IPC IPC(8): G01R11/04G01R15/14
CPCG01R11/04G01R15/144
Inventor 于海波徐英辉林繁涛李贺龙王兴媛刘佳王春雨陈伟
Owner CHINA ELECTRIC POWER RES INST