Power distribution cabinet

A technology for power distribution cabinets and cabinets, which is applied to the cooling/ventilation of substations/switchgear, measuring devices, instruments, etc., and can solve the problem of unsatisfactory heat dissipation in power distribution cabinets, affecting the normal use of power distribution cabinets, and poor insulation performance, etc. problem, achieve the effect of reducing the probability of abnormal tripping, eliminating dead heat dissipation, and low cost

Inactive Publication Date: 2014-10-08
成都高华电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrical components and lines in the existing power distribution cabinet are in good contact and reliable connection, but because the electrical components will generate a lot of heat when they work, and the heat dissipation effect of the power distribution cabinet is not ideal, the connection ends of some electrical components and lines The head is more prone to local heating, resulting in excessive local temperature, and even heating and burning, which ultimately affects the normal use of the entire power distribution cabinet
In addition to the above-mentioned heat dissipation problems, the existing power distribution cabinets also have the defects of scratch resistance and poor insulation performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A power distribution cabinet includes a cabinet body and a temperature sensor, a temperature relay and a cooling fan arranged in the cabinet body.

[0026] There are front door and back door on the front and rear sides of the cabinet respectively, and the two ends of the front door and the back door are respectively connected with the cabinet body through connecting devices; the front door is a single door, and the back door is a double door. Both the front door and the back door are made of 2mm cold rolled The side of the power distribution cabinet is made of 1.5mm cold-rolled plate, and the cover of the power distribution cabinet is made of 2mm cold-rolled plate. When maintaining and overhauling the power distribution cabinet, the corresponding cabinet door can be opened to prevent the operator from misoperation without being able to see it, thereby improving the convenience of power distribution cabinet maintenance and making the maintenance of the power distribution ...

Embodiment 2

[0029] On the basis of Embodiment 1, there are at least two heat dissipation fans, wherein the two heat dissipation fans are respectively installed on the two opposite inner sides of the cabinet body, and the air outlet of one heat dissipation fan is installed corresponding to the heat dissipation port on the opposite side of the cabinet body. The air inlet of the other cooling fan is installed corresponding to the cooling port on the other side of the cabinet. The wind direction of one cooling fan faces inward while the wind direction of the other cooling fan faces outward. The two form air convection, which accelerates the air circulation in the power distribution cabinet. , improve the heat dissipation effect, so as to achieve a better heat dissipation effect.

Embodiment 3

[0031] On the basis of embodiment one or embodiment two, an infrared sensing alarm system is also provided in the cabinet, and the infrared sensing alarm system includes an infrared temperature measuring probe, a front circuit, an A / D converter, a single chip microcomputer 1, a Sound alarm device and GSM module. The infrared temperature measuring probes are respectively arranged at the switch contacts and the conductor connectors in the cabinet to detect the temperature information at the switch contacts and the conductor connectors; the infrared temperature measuring probes are electrically connected to the pre-circuit, and the circuit diagram of the pre-circuit is as follows: Figure 4As shown, it is mainly composed of filter amplification, voltage comparison and temperature compensation circuits. In the amplification circuit, negative feedback of the thermistor is used to realize temperature compensation. When the temperature is high, the resistance of the thermistor decreas...

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Abstract

The invention discloses a power distribution cabinet, belongs to the technical field of power distribution cabinets, and aims to provide an epoxy powder power distribution cabinet which has a good heat dissipation effect, is scratch-resistant and has good insulating performance. The technical scheme is as follows: the power distribution cabinet comprises a cabinet body with heat dissipation ports, and the cabinet body has a front door and a rear door; and the power distribution cabinet is characterized in that the front door of the cabinet body is a side-opening door, the rear door of the cabinet body is a center-opening door, the inside of the cabinet body is provided with a temperature sensor, a temperature relay and heat dissipation fans which are electrically connected in series, the temperature sensor is arranged corresponding to an air switch in the cabinet body, and the heat dissipation fans are mounted at the heat dissipation ports. The technical scheme can be widely used in power distribution cabinets.

Description

technical field [0001] The invention belongs to the technical field of power distribution cabinets, and in particular relates to a power distribution cabinet with good heat dissipation effect, scratch resistance and good insulation performance. Background technique [0002] In the power system, the power distribution cabinet is an important control and protection device, and the contact characteristics of the conductive connections in the power distribution cabinet will directly affect the reliability of the switch cabinet. The electrical components and lines in the existing power distribution cabinet are in good contact and reliable connection, but because the electrical components will generate a lot of heat when they work, and the heat dissipation effect of the power distribution cabinet is not ideal, the connection ends of some electrical components and lines The head is relatively easy to generate heat locally, causing the local temperature to be too high, and even ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/56G01J5/00
Inventor 朱颜勇
Owner 成都高华电气有限公司
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