CN2038271U

CN2038271U - Splicing electromagnetic-scree-ned room

Info

Publication number: CN2038271U
Application number: CN 88213296
Authority: CN
Inventors: 曹淳; 翁金树; 郭鲁灿; 沈克俭
Original assignee: ZHUJI MEDICAL ELECTRONIC APPARATUS FACTORY ZHEJIANG PROV
Current assignee: ZHUJI MEDICAL ELECTRONIC APPARATUS FACTORY ZHEJIANG PROV
Priority date: 1988-09-10
Filing date: 1988-09-10
Publication date: 1989-05-24

Abstract

A splicing electromagnetic-scree-ned room of the utility model is formed by multiple blocks of unit metal net frame plates and a frame type door, and the metal net frame plates and the frame type door are spliced together. The flexible connection between the are realized by bolts. A plurality of the frame plates can be sheathed as required to increase the shielding space, when are not used, the frame plates can be demounted to make convenience for keeping. The utility model has the advantages of convenient operation, simple structure, strong practicability, and has higher screening effectiveness to isolate the electromagnetic interference in a wide-band range. The utility model is suitable for the matching using with electrophysiology experiments and medical electronic apparatus equipment.

Description

Splicing electromagnetic-scree-ned room

The utility model belongs to a kind of spliced electromagnetic shielding chamber that is used for electric Physiological Experiment.

Electricity Physiological Experiment equipment is as other electronic equipments, very easily be subjected to various electromagnetism to involve the interference in 50 hertz of power supply magnetic fields, as use just can decay the effectively interference in various electromagnetic radiations source of electromagnetic shielding chamber, but at present the electromagnetic screen equipment that is suitable for this domain-specific is not arranged also, and electromagnetic interference problem does not solve.Will influence the accuracy of its experiment and testing result.

The purpose of this utility model is at above-mentioned present situation, but proposes a kind of not only sliceable but also demolition, and simple in structure, is applicable to the electromagnetic shielding chamber of electric Physiological Experiment.

Spliced electromagnetic shielding chamber is to adopt timber (or aluminium alloy) to be framework, with wire netting as shield, be prefabricated into polylith unit deckle board and frame door, be spliced into the wall framework by the unit deckle board again, adopt bolt to connect between the deckle board, the frame door is located at the both sides of framework correspondence, make between its screened room that forms a sealing, placed in the framework by the frame door by experimental subjects, like this, when the electromagnetism wave amplitude is penetrated in wire netting and be attenuated, isolate or eliminate and disturb thereby reach, improve the purpose of experiment accuracy.

The utility model is simple in structure, as required can many sockets during use, to increase shielding space, but not the time spent again demolition just with the keeping, install, use very convenient, and shield effectiveness is higher, can and isolate the decay of the electromagnetic interference (EMI) in the broad frequency band scope, be specially adapted to electric Physiological Experiment, also be suitable for the supporting of medical electronic apparatus equipment.

Accompanying drawing 1 is the structural representation of spliced electromagnetic shielding chamber;

Accompanying drawing 2 is back door structural representations.

Enforcement of the present utility model further specifies with reference to accompanying drawing, as shown in Figure 1, adopting timber or aluminium alloy is framework, with the also available brass screen of 22～32 order red copper net 10() or other wire nettings be shield, be prefabricated into right deckle board 1, left side deckle board 2, top frame plate 3, underframe plate 4, frame Qianmen 5 and back door 6, four module unit deckle boards are spliced into the wall framework, for realizing can demolition and can more than enough socket, connect by demountable bolt 8 between the deckle board, frame Qianmen 5 and frame back door 6 are located at both sides (the corresponding both sides that promptly do not have deckle board), wall framework front and back respectively, Qianmen 5 directly is fixed on the right deckle board 1 by hinge 11, back door such as Fig. 2, form by back door 6 and back doorframe 7, also connect between the two with hinge, back doorframe 7 is fixed with framework again, a wall two gate-type electromagnetic shielding chambers have so just been formed, for improving shield effectiveness, junction between the deckle board must keep the good metal contact, be to guarantee good connection between the wire netting, with week in the 5 contacted frameworks of Qianmen and with contacted back, back door 6 doorframes 7 in week comb shape spring leaf 9 can be set, simultaneously, be switch door convenience, can install handle 12 on Qianmen and the back door, piece together (cover) and connect if realize two screened rooms, only need to intersect and roll over left deckle board or the right deckle board that removes two screened rooms, with bolt two screened rooms are connected again and just can.

Claims

1, a kind of spliced electromagnetic shielding chamber, comprise the framework that constitutes by wire netting and timber (or aluminium alloy) framework, frame door etc., it is characterized in that described framework is made of right deckle board 1, left deckle board 2, top frame plate 3, underframe plate 4, connected by bolt 8 between the deckle board, the both sides of framework correspondence (promptly) also are provided with frame Qianmen 5 and frame back door 6.

2,, it is characterized in that frame back door 6 peripheries are provided with back doorframe 7 by the described spliced electromagnetic shielding chamber of claim 1.

3, by claim 1 or 2 described spliced electromagnetic shielding chambers, it is characterized in that with frame Qianmen 5 contacted frameworks in week and with frame back door 6 contacted back doorframes 7 in be equipped with comb shape spring leafs 9 week.