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Engineering machinery cab with electromagnetic shielding function

A technology of engineering machinery and electromagnetic shielding, applied in the direction of magnetic/electric field shielding, shielding materials, electrical components, etc., can solve problems such as information distortion, endangering the health of operators, and control failure, and achieve reliable performance, easy implementation, and reasonable structure Effect

Pending Publication Date: 2018-07-06
江苏奔宇车身制造有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although most construction machinery cabs are made of metal materials, which can shield electromagnetic waves, the glass of the glass window and the rubber sealing strip of the car door cannot shield electromagnetic waves. When working, electromagnetic waves will enter the cab from openings such as windows and doors. Electromagnetic radiation will not only endanger the health of operators, but also electronic equipment and instruments inside the cab will cause information distortion and control failure due to electromagnetic interference. Machinery not functioning properly

Method used

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  • Engineering machinery cab with electromagnetic shielding function
  • Engineering machinery cab with electromagnetic shielding function
  • Engineering machinery cab with electromagnetic shielding function

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Embodiment Construction

[0036] 1. The electrical connection structure between the shielding glass and the movable window frame:

[0037] Such as figure 1 As shown, the engineering machinery cab includes a vehicle body 1, a car door 2 is set on the car body 1, a fixed window frame 3-1 is set on the car door 2, and the movable window frame 3-2 can be matched with the fixed window frame 3-1 by hinges and other connectors. 1, a shielding glass 3-3 is set in the movable window frame 3-2.

[0038] Such as figure 2 As shown, the shielding glass 3-3 is composed of an inner layer glass 3-3-1, an outer layer glass 3-3-2 and a wire mesh 3-3-3 clamped between the inner layer glass and the outer layer glass. Copper foil 3-3-4 is wrapped around the inner and outer layers of glass and the wire mesh, and the copper foil 3-3-4 is electrically connected to the wire mesh 3-3-3.

[0039] The light transmittance of the above shielding glass 3-3 is ≥70%, and the shielding efficiency is ≥20dB.

[0040] Such as image...

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Abstract

The invention discloses an engineering machinery cab with an electromagnetic shielding function and relates to the technical field of engineering machinery cab production. A vehicle door is arranged on a vehicle body, a fixed window frame is arranged on the vehicle door, a movable window frame is arranged on the fixed window frame, and shielding glass is arranged in the movable window frame; the shielding glass is clamped between a conductive plate and the movable window frame through metal bolts and nuts arranged on the periphery; a fixed glue layer is further arranged between the shielding glass and the movable window frame; a metal clamping groove facing the movable window frame is formed in the fixed window frame, and a conductive sealing strip matched with the movable window frame isarranged in the metal clamping groove; a metal clamping groove facing the vehicle body is formed in the vehicle door, and a conductive sealing strip matched with the vehicle body is arranged in the metal clamping groove. Electric continuous integral shielding can be formed, and the purposes of resisting electromagnetic radiation and resisting electromagnetic interference are achieved.

Description

technical field [0001] The invention relates to the technical field of production of cabs of various engineering machinery, such as excavators, loaders, cranes, etc., especially the electromagnetic shielding technology. Background technique [0002] The interaction between electric field and magnetic field will generate electromagnetic waves. The phenomenon of electromagnetic waves launching or leaking into the air is called electromagnetic radiation. Excessive electromagnetic radiation will cause electromagnetic pollution. With the increase of electronic and electrical products, electromagnetic wave pollution is becoming more and more serious, and it has become the fourth largest pollution after air pollution, water pollution and noise pollution. [0003] Electromagnetic shielding refers to the process in which electromagnetic waves are reflected and absorbed when they pass through a shielding body, thereby reducing the energy of the electromagnetic waves. Relevant experim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60J1/14H05K9/00
CPCH05K9/0005H05K9/009B60J1/14
Inventor 戚雪东戴有军赵迎东
Owner 江苏奔宇车身制造有限公司
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