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Electromagnetic shield plate, preparation method thereof, and modular assembling electric cabinet provided with electromagnetic shield plate

A technology of electromagnetic shielding and power cabinets, which is applied in the fields of magnetic field/electric field shielding, substation/power distribution device shells, electrical components, etc., and can solve problems such as lack of shock absorption and partition installation of power distribution components, large overall volume, and difficult transportation. , to achieve good shock absorption and partition installation functions, improve safety performance, and avoid mutual interference

Inactive Publication Date: 2019-10-29
HENAN POLYTECHNIC INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power cabinet is used in the occasions where the load is relatively scattered and there are few circuits. The motor control center is used in the occasions where the load is concentrated and there are many circuits. They distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby load. Protection, monitoring and control should be provided for the load; however, the existing power cabinets generally adopt an integral structure, which cannot be disassembled, and the overall volume is too large, making transportation difficult, and it does not have the functions of shock absorption and partition installation of power distribution components

Method used

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  • Electromagnetic shield plate, preparation method thereof, and modular assembling electric cabinet provided with electromagnetic shield plate
  • Electromagnetic shield plate, preparation method thereof, and modular assembling electric cabinet provided with electromagnetic shield plate
  • Electromagnetic shield plate, preparation method thereof, and modular assembling electric cabinet provided with electromagnetic shield plate

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preparation example Construction

[0030] The present invention is an electromagnetic shielding plate, a preparation method and a modular assembled power cabinet having the same, wherein the electromagnetic shielding plate 19 includes:

[0031] (1) An electromagnetic shielding plate made of the following raw materials in parts by weight: 58-64 parts of polyethylene resin, 10-14 parts of graphite, 5-8 parts of electromagnetic powder, 15-17 parts of glass fiber, and nano-tin oxide 7-9 parts of antimony, 14-18 parts of ammonium polyphosphate, 9-15 parts of sodium borate, 1-3 parts of silane coupling agent and 1-3 parts of PE toughening agent.

[0032] (2) An electromagnetic shielding plate made of the following raw materials in parts by weight: 58 parts of polyethylene resin, 14 parts of graphite, 6 parts of electromagnetic powder, 17 parts of glass fiber, 8.5 parts of nano-antimony tin oxide, and 14 parts of ammonium polyphosphate 10 parts of sodium borate, 1 part of silane coupling agent and 1.5 parts of PE toug...

Embodiment 1

[0046] An electromagnetic shielding plate made of the following raw materials in parts by weight: 58 parts of polyethylene resin, 10 parts of graphite, 5 parts of electromagnetic powder, 15 parts of glass fiber, 7 parts of nano-antimony tin oxide, 14 parts of ammonium polyphosphate, boric acid 9 parts of sodium, 1 part of silane coupling agent and 1 part of PE toughening agent.

[0047] A preparation method of the electromagnetic shielding plate, comprising the steps of:

[0048] Step 1: Weigh polyethylene resin, graphite, electromagnetic powder, glass fiber, nano-tin antimony oxide, ammonium polyphosphate, sodium borate, silane coupling agent and PE toughening agent, and set aside;

[0049] Step 2: After mixing graphite, electromagnetic powder, glass fiber and nano-tin antimony oxide, add it to a pulverizer, and pulverize it for 30 minutes at a speed of 3000 r / min, and pulverize it to 5 mesh to obtain a mixed powder;

[0050] Step 3: Add the mixed powder, ammonium polyphosph...

Embodiment 2

[0057] An electromagnetic shielding plate made of the following raw materials in parts by weight: 64 parts of polyethylene resin, 14 parts of graphite, 8 parts of electromagnetic powder, 17 parts of glass fiber, 9 parts of nano-tin antimony oxide, 18 parts of ammonium polyphosphate, boric acid 15 parts of sodium, 3 parts of silane coupling agent and 3 parts of PE toughening agent.

[0058] A preparation method of the electromagnetic shielding plate, comprising the steps of:

[0059] Step 1: Weigh polyethylene resin, graphite, electromagnetic powder, glass fiber, nano-tin antimony oxide, ammonium polyphosphate, sodium borate, silane coupling agent and PE toughening agent, and set aside;

[0060] Step 2: After mixing graphite, electromagnetic powder, glass fiber and nano-tin antimony oxide, add it to a pulverizer, and pulverize it for 20 minutes at a speed of 3500r / min, and pulverize it to 16 mesh to obtain a mixed powder;

[0061] Step 3: Add the mixed powder, ammonium polypho...

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Abstract

The invention belongs to an electromagnetic shield plate, a preparation method thereof, and a modular assembling electric cabinet provided with the electromagnetic shield plate. The modular assemblingelectric cabinet comprises a damping base unit, the damping base unit is connected with a frame unit, one side of the front surface of the frame unit is connected with a cabinet door through a hinge,and the cabinet door is provided with a mechanical lock matched with the other side of the front surface of the frame unit; an upper cover is arranged at the top of the frame unit, and a baffle mechanism slidably connected with the upper cover is arranged at the bottom of the upper cover; and the baffle mechanism comprises a sliding block mounted at the outer circumference of a screw rod at the bottom of the upper cover in a sleeving mode, the sliding block is provided with an adjusting knob matched with the screw rod, and the bottom of the sliding block is connected with the electromagneticshield plate. The modular assembling electric cabinet has the advantages that the structure is simple, design is reasonable, using is convenient, assembling and disassembling are convenient, quick mounting is convenient, transporting is also convenient, meanwhile, the good damping and partition mounting functions are achieved, and the service life of power distribution elements in the electric cabinet is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of power cabinets, and in particular relates to an electromagnetic shielding plate, a preparation method and a modular assembled power cabinet having the same. Background technique [0002] Power distribution is a link in the power system that is directly connected to users and distributes electric energy to users. The distribution system consists of distribution substations, high-voltage distribution lines, distribution transformers, low-voltage distribution lines and corresponding control and protection equipment. The power cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet, and is the final equipment of the power distribution system. The power cabinet is a general term for the motor control center. The power cabinet is used in the occasions where the load is relatively scattered and there are few circuits. The motor control center is used in the occasi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/04C08K7/14C08K3/04C08K3/22C08K3/32C08K3/38H02B1/30H02B1/54H05K9/00
CPCC08K2003/323C08K2003/387C08K2201/011C08L23/06C08L2203/20C08L2205/025H02B1/301H02B1/54H05K9/0081C08K13/04C08K7/14C08K3/04C08K3/22C08K3/32C08K3/38
Inventor 朱清智王娜王记昌靳果杨科科白东峰申一歌李名莉
Owner HENAN POLYTECHNIC INST