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Alternating current power supply junction box based on shielding grounding

A technology of AC power supply and shielding grounding, which is applied in the field of junction box, which can solve the problems of long distance and difficult replacement of cables, and achieve the effects of avoiding potential difference, straight cables and solving electromagnetic interference

Pending Publication Date: 2022-06-03
四川发展磁浮科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to provide an AC power supply junction box based on shielding and grounding to solve the problem that the distance between the tram power supply equipment and the motor in the prior art is relatively long, and the cables need to be arranged through the wall multiple times according to the car body structure. The problem that the cable is damaged and not easy to replace

Method used

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  • Alternating current power supply junction box based on shielding grounding
  • Alternating current power supply junction box based on shielding grounding
  • Alternating current power supply junction box based on shielding grounding

Examples

Experimental program
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Effect test

Embodiment 1

[0072] see Figure 1-Figure 10 , this embodiment proposes an AC power supply distribution box based on shielding and grounding, including a box body 1, two sides of the box body 1 are provided with openings, and a detachable inspection cover is provided at the openings, The access cover is used to close the opening, and the access cover includes a first access cover 2 and a second access cover 3 , which are respectively located at the openings on the two sides of the box body 1 .

[0073] In this embodiment, the main body of the junction box is made of SUS 304 material and painted, which can adapt to the environment outside the vehicle. The access cover is also made of SUS 304 material, and the access cover is installed on the box 1 with M6x20 bolts. , remove it during wiring, installation and maintenance.

[0074] The box body 1 is provided with a terminal installation plate 9 inside, and a plurality of connection terminals 8 are arranged on the terminal installation plate 9...

Embodiment 2

[0085] The difference between this embodiment and Embodiment 1 is that: the bottom of the box body 1 is provided with a one-way drain valve 6. When the junction box accidentally enters water or the condensed water accumulates to a certain amount, the water can be discharged through the one-way drain valve 6. Avoid the risk of electrical short circuits.

Embodiment 3

[0087] The difference between this embodiment and Embodiment 1 is that a first waterproof rubber strip 11 is provided between the first access cover 2 and the box 1 , the second access cover 3 and the box 1 A second waterproof rubber strip 12 is arranged therebetween, and the waterproof rubber strip is used to seal the junction box.

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Abstract

The invention relates to the technical field of junction boxes, aims to solve the problems that in the prior art, a tramcar power supply device is far away from a motor, a cable needs to be arranged through a wall for multiple times according to a vehicle body structure, and the cable is not easy to replace if damaged, and provides an alternating current power supply junction box based on shielding grounding. The box body is provided with an access cover plate and a grounding pole, the box body is internally provided with a terminal mounting plate, the terminal mounting plate is provided with a plurality of wiring terminals, one end of each wiring terminal is connected with an incoming cable, the other end of each wiring terminal is connected with an outgoing cable, and the distribution box can realize wall penetration of the cables and preposition the cables; according to the alternating current power supply junction box, the box body is small, exquisite and light, and can be installed at different positions according to different vehicle body supports; the junction box is high in integration degree, simple in structure, low in cost and good in air tightness and water tightness, and meets the requirements of light weight, space limitation and cost reduction design.

Description

technical field [0001] The invention relates to the technical field of distribution boxes, in particular to an AC power supply distribution box based on shielding and grounding. Background technique [0002] With the acceleration of urbanization, the population is highly concentrated in large and medium-sized cities, and the demand for rail transit increases, which promotes the rapid development of trams and puts forward higher requirements for the reliability and maintainability of trams . For the most common wheel-rail vehicles in rail vehicles, the running part motor is the most important vehicle power, and its AC power supply cable interferes greatly with low-voltage signal equipment, generally 50mm 2 Shielded cables with diameters above and above. Due to the layout restrictions of 100% low-floor trams, the power supply equipment is arranged on the roof, which is far away from the running motor arranged on the bottom of the vehicle, and the cables need to be arranged t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G3/16H02G3/18H02G3/08H01R4/64
CPCH02G3/16H02G3/18H02G3/088H01R4/646Y02A30/14
Inventor 余毅李佐斐张晓峰
Owner 四川发展磁浮科技有限公司
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