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Wiring box for motor

A junction box and cable technology, which is applied in the field of motor junction boxes, can solve the problems of junction box safety hazards, motor accidents, and the inability to ensure that the three-phase lines of cables will not break down and connect.

Active Publication Date: 2012-06-27
湖南中车尚驱电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although there is a certain safe distance between the three insulators, it cannot be guaranteed that the three-phase lines of the cable will not break down and communicate with each other when the voltage changes, and any two phases between the three-phase lines of the cable will break down. , will cause serious accidents to the motor, and the junction box has certain potential safety hazards

Method used

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  • Wiring box for motor
  • Wiring box for motor

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Embodiment Construction

[0038] The core of the present invention is to provide a motor junction box with high electrical safety.

[0039] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] Please refer to the picture Figure 1 to Figure 4 , figure 1 It is a partially cut-away front view of a specific embodiment of the motor junction box provided by the embodiment of the present invention, figure 2 for figure 1 Side cutaway view of the motor terminal box shown, image 3 for figure 2 An enlarged schematic view of the insulation box of the motor terminal box shown, Figure 4 for figure 2 An enlarged schematic view of the insulation mount of the motor terminal box shown.

[0041] In a specific embodiment, the present invention provides a motor junction box, which includes an installation box 1 and th...

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Abstract

The invention discloses a wiring box for a motor, which comprises an installing box and three insulating boxes, wherein the three insulating boxes are all installed in the installing box, and each insulating box is provided with two cable inlets. A main cable of the motor is connected with an external cable at the inner part of the wiring box for the motor, the three-phase wires of the cable are respectively positioned in the three insulating boxes of the wiring box for the motor, and one phase in the three phases of the motor cable and one phase in the three phases of the external cable respectively enter the insulating boxes from the two cable inlets and are connected in the insulating boxes. Since each phase in the three-phase cable is respectively led into the three independent insulating boxes, electric clearances and creepage distances among the phases are greatly increased, so that the wiring box for the motor has high electric safety.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a motor junction box. Background technique [0002] A motor is an electromagnetic device that converts or transmits electrical energy based on electromagnetic induction. The main function of the motor is to generate driving torque as a power source for electrical appliances or various machines. [0003] According to the different working power of the motor, it can be divided into DC motor and AC motor, and AC motor is also divided into single-phase motor and three-phase motor. Three-phase AC motors have high power and are mainly large-scale motors, which are generally used in large-scale industrial equipment with three-phase power supply. [0004] In practical applications, the main cable of the three-phase AC motor is usually connected to an external three-phase cable through a junction box. Inside the junction box, the three phases of the three-phase AC motor cables are respe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/22
Inventor 王虎邓尧强周黎民黄鹏程苏诗湖
Owner 湖南中车尚驱电气有限公司
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