CN202000863U - Structure of broadband electromagnetic shielding door with high shielding efficiency - Google Patents
Structure of broadband electromagnetic shielding door with high shielding efficiency Download PDFInfo
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- CN202000863U CN202000863U CN 201020697798 CN201020697798U CN202000863U CN 202000863 U CN202000863 U CN 202000863U CN 201020697798 CN201020697798 CN 201020697798 CN 201020697798 U CN201020697798 U CN 201020697798U CN 202000863 U CN202000863 U CN 202000863U
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Abstract
The utility model relates to a structure of a broadband electromagnetic shielding door with high shielding efficiency, which adopts a 'single-pole and three-reed' shielding structure, and is characterized in that: when metal inserting plates are in tight and pressing connection with beryllium bronze reeds, a metal lug boss with obliquity is welded around the inner edge of a metal surround frame in a full length, and a beryllium bronze reed is bonded to the periphery of a door profile, so that the beryllium bronze reed can be in tight and pressing connection with the metal lug boss with obliquity when the shielding door is closed, and finally, two rings of 360-degree shielding structures are formed. Since the two rings of metal inserting plates are arranged around the shielding door, when the shielding door is closed, the whole shielding function of the shielding door can be greatly improved by the tight contact of a ring of metal inserting plate and the beryllium bronze reeds, and the other ring of metal inserting plate is in tight and pressing connection with an insulating sealing gasket on the metal surrounding frame to play a rainproof and moistureproof role and effectively prevent the inside metal structure from being oxidized with a ring of metal inserting plate and the beryllium bronze reeds.
Description
Technical field
The utility model belongs to the electromangnetic spectrum field of electronics shelter door and screened room door, and the structure of the high shield effectiveness electromagnetic shield door in particularly a kind of broadband relates to the electromagnetic leakage inhibition method of electronics shelter door and screened room door.
Background technology
At present, along with the modern military development of electronic technology, make the residing electromagnetic environment of military electronics embody following characteristics:
1. frequency range is towards two extreme expansions fast of low frequency, high frequency, at present the electromagnetic frequency scope of using from infrasonic tens Hz to optical communication, tens GHz such as infrared, photoelectricity are to GHz up to a hundred;
2. frequency spectrum is intensive, and a large amount of electronics frequency spectrums mainly concentrate on 9kHz～40GHz;
3. the closeness of equipment or system and integrated level increase greatly, cause originally many efficient ways such as the spatial separation that can adopt in little equipment of volume, limited space or system, layout to adopt;
4. the sensitivity of receiving equipment and system improves, and causes its anti-jamming capacity greatly to weaken;
5. the transmitting power of high-power transmitter increases, and causes its interference to other equipment or system to increase;
6. many commander's information systems are faced with the requirement that information security is maintained secrecy.
Because the requirement of operational mobility, the shielding shelter has obtained to use widely in military electronic system.Above-mentioned factor makes the electromagnetic environment of equipment or system worsen, because the size that the shielding shelter is called is generally the maximum open size, Gu Men is the easiest parts that cause electromagnetic leakage, and the leakage rate maximum.Therefore, how to study the structure that produces a kind of high shield effectiveness electromagnetic shield door in broadband easy to use and just seem particularly important.
Summary of the invention
The purpose of this utility model is: the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband is provided, and shield effectiveness according to GJB6109-2007 I level requirement 〉=60dB, provides easy to use can for electronics shelter and shielding device in 9kHz～18GHz.
The technical solution of the utility model is: the structure that relates to the high shield effectiveness electromagnetic shield door in a kind of broadband, which comprises at least doorframe, metal and enclose retaining mechanism, beryllium-bronze reed, the shielding groove that connects on frame, the door body, it is characterized in that: its door body, doorframe, metal enclose frame, retaining mechanism is a shielding construction, door body middle part is fixed with the retaining mechanism of band door handle for wearing couplet on the door dynamic formula, promptly all there is door handle the inside and outside both sides of door, inside and outside door, all can open the door simultaneously, be fixed with 360 ° of beryllium-bronze reeds at door body via hole inner ring two ends and be connected with retaining mechanism with door handle; Doorframe is that metal encloses frame four limits and has the shielding groove, and the right and left is bonded with the beryllium-bronze reed in the shielding groove, the right and left beryllium-bronze reed circular arc top closely contact mutually after bonding, and a door body is that its outer rim of shield door section bar is connected with metal backing.
Described metal encloses in the outer ring groove of frame the electro-insulating rubber liner; Doorframe is that aluminium shape surface is coated with nickel-phosphorus alloy and closely wraps up shielding groove both sides by sunk screw, and is not connected with the beryllium-bronze reed; Metal encloses the frame inboard and also is fixed with the metal boss.
Described door body be a section bar be in the outer steel constructed of aluminium and around be surrounded by the door layer, section bar one a side upper/lower terminal is fixed with door-hinge respectively, a section bar encloses frame by door-hinge and metal fixedlys connected, door-hinge is made of metal hinge and metal rotating shaft; Door section bar opposite side upper/lower terminal has sliding tray by screw respectively, and the middle part is fixed with door handle.
Described retaining mechanism is crossed bar by door handle, door hinge, metal and is constituted, the metal of retaining mechanism is crossed bar and is bonded with 360 ° of beryllium-bronze reeds with via hole inner ring two ends and is connected, door hinge is a bikini door hinge structure, its middle part links to each other with door handle, and be screwed with door section bar exterior skin and be connected, the door hinge upper/lower terminal is fixed with the metal roller, the metal roller is fixed in the sliding tray, and metal encloses door handle, door hinge, metal on locking member on the frame, locking draw-in groove and the door section bar and crosses bar and constituted locking device.
Described metal encloses the external surrounding frame that frame is a shield door, the anti-oxidant electroplating processes of surface conductance, and aluminium material in the outer steel, aluminium sheet and mild steel steel plate, gross thickness is 8mm～15mm; The door section bar is an aluminium hollow core structures in the outer steel, polishes behind the whole full welds of seam crossing, and aluminium sheet and mild steel steel plate gross thickness are 4mm～10mm; The doorframe aluminium shape surface is implemented plating and is coated with nickel-phosphorus alloy, the anti-oxidant electroplating processes of surface conductance, and closely wrap up shielding groove both sides and be not connected with the beryllium-bronze reed by sunk screw, doorframe aluminium extruded sections thickness is 1mm～2.5mm; Door hinge is a steel matter, and the anti-oxidant electroplating processes of conduction is adopted on the surface, adopts bikini door hinge structure.
Described locking member is a steel matter, is shaped as rectangle, and the centre has 15 ° of inclination angle locking draw-in grooves; Door lock is a copper material, and with turn behind the key insertion lock core, the card article in the door lock can eject, and will lock the draw-in groove blocking-up.
Described beryllium-bronze reed is adhered, circular shape, and the bottom surface has conduction to use double-sided adhesive glue, is bonded in to shield the inboard both sides of groove and the inboard one side of door section bar 2 grooves; After bonding, beryllium-bronze reed and shielding groove resistance≤2m Ω, the compressive strain scope is 20%～80%, electromagnetic frequency is shield effectiveness 〉=70dB between 150KHz～18GHz.。
Described metal boss is a copper material, and the anti-oxidant electroplating processes of surface conductance, and 8 ° inclined-plane is arranged is fixed on metal by sunk screw and encloses around the frame inboard, and when shield door was closed, beryllium-bronze reed deflection was 70%.
Described shielding recess-mounted in metal encloses frame around on the frame, the anti-oxidant electroplating processes of surface conductance, both sides are equipped with the doorframe aluminium extruded sections, the enforcement plating is coated with nickel-phosphorus alloy and closely wraps up by sunk screw, the right and left is bonded with the beryllium-bronze reed in the shielding groove, and the right and left beryllium-bronze reed circular arc top after bonding is closely contact mutually.
Described metal backing is a steel matter, the anti-oxidant electroplating processes of surface conductance, be welded on around the section bar outside, metal backing is welded on a section bar two circles, the centre that one circle metal backing inserts the right and left beryllium-bronze reed in the shielding groove, to around its section bar outer rim, form 360 ° of conducting surfaces, bulk shielding, the electro-insulating rubber liner that another circle is installed in metal encloses the outer ring groove of frame closely is crimped on, when moving door handle, door hinge two metal roller will snap in the locking draw-in groove of locking member, and the locking draw-in groove has 15 ° of inclination angles, and the metal roller is approach locking draw-in groove when bottom shield door and beryllium-bronze reed card tight more more; In metal encloses the outer ring groove of frame, the electro-insulating rubber liner is installed.
The structure of the high shield effectiveness electromagnetic shield door in described a kind of broadband, its feature are that door handle is a steel matter, adopt and wear a linkage type, and two ends are equipped with the beryllium-bronze reed for 360 ° in via hole, closely contact with inside and outside handle.
The structure of the high shield effectiveness electromagnetic shield door in described a kind of broadband, its feature are that the metal hinge is a steel matter, enclose frame with metal on one side by screw and fixedly connected, with door section bar exterior skin fixedly connected on one side.
Characteristics of the present utility model are: the structure of the high shield effectiveness electromagnetic shield door in this broadband adopts " hilted broadsword three springs " shielding construction, both in metal backing and the tight crimping of beryllium-bronze reed, because full weld the metal boss that has gradient around metal enclosed the frame inner edge, door section bar periphery is bonded with the beryllium-bronze reed, when shield door is closed, the beryllium-bronze reed can with the tight crimping of metal boss that has gradient, finally form two the circle 360 ° of shielding constructions.It has characteristics simple to operate, that weight is moderate, shield effectiveness is high, useful life longevity is good; Because the existence of two circle metal backings is arranged around the shield door, when shield door is closed, the tight bulk shielding usefulness that can greatly improve shield door that contacts by a circle metal backing and beryllium-bronze reed, another circle metal backing and metal enclose the tight crimping of insulated enclosure liner on the frame, can play rainproof, moistureproof function, and effectively prevent its interior metal structure and a circle metal backing and the oxidation of beryllium-bronze reed, thereby shield effectiveness was lost efficacy.The structure of the high shield effectiveness electromagnetic shield door in this broadband has characteristics simple to operate, that weight is moderate, shield effectiveness is high, useful life longevity is good; Owing to the existence of metal backing is arranged, when shield door is closed, can play rainproof, moistureproof function, and effectively prevent the usefulness of its interior metal structure oxidation.
Description of drawings
Below in conjunction with embodiment the utility model is described further:
Fig. 1 is the closing structure schematic diagram of the high shield effectiveness electromagnetic shield door in embodiment broadband;
Fig. 2 is the expanded configuration schematic diagram of the high shield effectiveness electromagnetic shield door in embodiment broadband;
Fig. 3 is the main shield member structural representation of the high shield effectiveness electromagnetic shield door in embodiment broadband.
Among the figure: 1, metal encloses frame; 2, door section bar; 3, sliding tray; 4, bag door layer; 5, metal trace; 6, door handle; 7, door hinge; 8, locking member; 9, metal hinge; 10, metal rotating shaft; 11, metal is crossed bar; 12, locking draw-in groove; 13, metal roller; 14, electro-insulating rubber liner; 15, doorframe aluminium extruded sections; 16, beryllium-bronze reed; 17, shielding groove; 18, metal boss; 19, metal backing.
The specific embodiment
Embodiment 1 which comprises at least doorframe, metal encloses retaining mechanism, beryllium-bronze reed, the shielding groove that connects on frame 1, the door body, it is characterized in that: its door body, doorframe, retaining mechanism are shielding constructions, door body middle part is fixed with the retaining mechanism of band door handle 6, retaining mechanism is to wear couplet on the door dynamic formula, promptly all there is door handle 6 the inside and outside both sides of door, inside and outside door, all can open the door simultaneously, be fixed with 360 ° of beryllium-bronze reeds 16 at door body via hole inner ring two ends and be connected with retaining mechanism with door handle 6; Doorframe be metal enclose frame 1 four limits have the shielding groove 17, the right and left is bonded with beryllium-bronze reed 16 in the shielding groove 17, the right and left beryllium-bronze reed 16 circular arc tops after bonding are closely contact mutually, and the door body is that its outer rim of shield door section bar 2 is connected with metal backing 19.
Embodiment 2 is as Fig. 1, Fig. 2 and shown in Figure 3, after enclosing frame 1 size perforate according to metal on shelter or the shielding body of wall metal being enclosed frame 1 is welded to connect with exterior surface of wall, metal encloses frame 1 outside upper/lower terminal and is fixed with locking member 8 respectively, locking member 8 has locking draw-in groove 12, and door lock is embedded in locking draw-in groove 12 outsides; Metal encloses frame 1 four limits and has shielding groove 17, the right and left is bonded with beryllium-bronze reed 16 in the shielding groove 17, the right and left beryllium-bronze reed 16 circular arc tops after bonding are closely contact mutually, and metal encloses the interior electro-insulating rubber liner 14 in addition of outer ring groove of frame 1; The 15 enforcement platings of doorframe aluminium extruded sections are coated with nickel-phosphorus alloy and closely wrap up shielding groove 17 both sides and be not connected 16 with the beryllium-bronze reed by sunk screw; Metal encloses frame 1 inboard and also is fixed with metal boss 18; Door section bar 2 is enclosed with door layer 4 for constructed of aluminium periphery in the outer steel, and door section bar 2 one side upper/lower terminals are fixed with door-hinge respectively, and door section bar 2 encloses frame 1 by door-hinge and metal fixedlys connected, and door-hinge is made of metal hinge 9 and metal rotating shaft 10; On door section bar 2 opposite sides, there is sliding tray 3 at following two ends by screw respectively, the middle part is fixed with door handle 6, door handle 6 is for wearing couplet on the door dynamic formula, promptly all there is door handle 6 the inside and outside both sides of door, be bonded with 360 ° of beryllium-bronze reeds 16 simultaneously at via hole inner ring two ends and cross bar 11 and be connected with metal, the middle part of door hinge 7 links to each other with door handle 6 by metal trace 5, and employing bikini door hinge structure, be screwed with door section bar 2 exterior skins and be connected, on the door hinge 7, following two ends are fixed with metal roller 13, metal roller 13 is fixed in the sliding tray 3, and metal encloses the locking member 8 on the frame 1, door handle 6 on locking draw-in groove 12 and the door section bar 2, door hinge 7, metal is crossed bar 11 and has been constituted locking device; Door section bar 2 outer rim welding two circle metal backings 19, the shielding groove 17 of door section bar 2 is at door section bar 2 peripheries, and the surface oxidation-resistant electroplating processes is steel matter all around.
The foregoing description 1 is nearest this structure, and embodiment 2 comparatively specifically but also be not limited only to this.
Described metal encloses the external surrounding frame that frame 1 can be a shield door, the anti-oxidant electroplating processes of surface conductance, and aluminium material in the outer steel, aluminium sheet and mild steel steel plate, gross thickness is that 8mm～15mm plays fixation.Door section bar 2 is an aluminium hollow core structures in the outer steel, polishes behind the whole full welds of seam crossing, and aluminium sheet and mild steel steel plate gross thickness are 4mm～10mm; Doorframe aluminium extruded sections 15 surface is implemented plating and is coated with nickel-phosphorus alloy, the anti-oxidant electroplating processes of surface conductance, and closely wrap up shielding groove 17 both sides and be not connected with beryllium-bronze reed 16 by sunk screw, doorframe aluminium extruded sections 15 thickness are 1mm～2.5mm; Door hinge 7 is a steel matter, and the anti-oxidant electroplating processes of conduction is adopted on the surface, adopts bikini door hinge structure.When moving door handle, door hinge 7 two ends metal rollers 13 will snap in the locking draw-in groove 12.
Described locking member 8 can be a steel matter, is shaped as rectangle, and the centre has 15 ° of inclination angle locking draw-in grooves 12; Door lock is a copper material, and with turn behind the key insertion lock core, the card article in the door lock can eject, to lock draw-in groove 12 blocking-up, when the metal roller 13 at door hinge 7 two ends slipped into the locking draw-in groove, card article ejected, blocking-up locking draw-in groove 12, door hinge 7 can't slide, and shield door is promptly locked.
Described beryllium-bronze reed 16 is adhered, circular shape, and the bottom surface has conduction to use double-sided adhesive glue, is bonded in shielding groove 17 inboard both sides and door section bar 2 grooves inboard on one side; After bonding, beryllium-bronze reed 16 and shielding groove 17 resistance≤2m Ω, the compressive strain scope is 20%～80%, electromagnetic frequency is shield effectiveness 〉=70dB between 150KHz～18GHz.
Described metal boss 18 is a copper material, the anti-oxidant electroplating processes of surface conductance, and 8 ° inclined-plane arranged, being fixed on metal by sunk screw encloses around frame 1 inboard, when shield door is closed, metal boss 18 can closely contact with the beryllium-bronze reed 16 in the door section bar groove, and 16 deflections of beryllium-bronze spring this moment are 70%, enclose frame 1 inboard at metal and promptly can form 360 ° of whole continuous conduction faces.
Described shielding groove 17 is embedded in metal and encloses on the interior frame all around of frame, the anti-oxidant electroplating processes of surface conductance, both sides are equipped with doorframe aluminium extruded sections 15, the enforcement plating is coated with nickel-phosphorus alloy and closely wraps up by sunk screw, the right and left is bonded with beryllium-bronze reed 16 in the shielding groove 17, the right and left beryllium-bronze reed 16 circular arc tops after bonding are closely contact mutually, in the time of in the middle of metal backing 19 inserts shielding groove 17, with the 16 closely crimping of the right and left beryllium-bronze reed, make the beryllium-bronze reed that elastic deformation more than 50% be arranged.
Metal backing 19 is a steel matter, the anti-oxidant electroplating processes of surface conductance, be welded on around a section bar 2 outsides, metal backing 19 is welded on a section bar 2 two circles, after the shield door closure, the centre that a circle metal backing 19 inserts the right and left beryllium-bronze reed 16 in the shielding groove 17 will form 360 ° of conducting surfaces around its section bar outer rim, bulk shielding, the electro-insulating rubber liner 14 that another circle is installed in metal encloses the outer ring groove of frame 1 closely is crimped on.When moving door handle 6, door hinge 7 two metal rollers 13 will snap in the locking draw-in groove 12 of locking member 8, because locking draw-in groove 12 has 15 ° of inclination angles, so that shield door and beryllium-bronze reed 16 block metal roller 13 during approach locking draw-in groove 12 bottoms more is tight more, shield effectiveness is also high more thereupon; Shield door integral body is inside and outside linkage type, the inside and outside door handle 6 that all is equipped with, and it is fixedly connected to cross bar 11 by metal, make inside and outside door handle 6 all can or open shield door locking, and shield effectiveness is identical; In metal encloses the outer ring groove of frame 1, electro-insulating rubber liner 14 is installed also, when shield door is closed, metal backing 19 can closely contact with electro-insulating rubber liner 14, reaches rainproof, moistureproof function, effectively prevents its interior metal structure oxidation.
The structure of the high shield effectiveness electromagnetic shield door in this broadband, adopt " hilted broadsword three springs " shielding construction, both in metal backing 19 and the 16 tight crimping of beryllium-bronze reed, because full weld the metal boss 18 that has gradient around metal enclosed frame 1 inner edge, door section bar 2 peripheries are bonded with beryllium-bronze reed 16, when shield door was closed, 16 meetings and the metal boss 18 tight crimping that have gradient of beryllium-bronze reed finally formed 360 ° of shielding constructions of two circles.It has characteristics simple to operate, that weight is moderate, shield effectiveness is high, useful life longevity is good; Because the existence of two circle metal backings 19 is arranged around the shield door, when shield door is closed, the tight bulk shielding usefulness that can greatly improve shield door that contacts by a circle metal backing 19 and beryllium-bronze reed 16, another circle metal backing 19 and metal enclose the electro-insulating rubber liner 14 tight crimping on the frame 1, can play rainproof, moistureproof function, and prevent that effectively its an interior metal structure and a circle metal backing 19 and beryllium-bronze reed 16 are oxidized.The structure of the high shield effectiveness electromagnetic shield door in this broadband has characteristics simple to operate, that weight is moderate, shield effectiveness is high, useful life longevity is good; Owing to have metal to insert the existence of 19 plates, when shield door is closed, can play rainproof, moistureproof function, and effectively prevent the usefulness of its interior metal structure oxidation.
Claims (10)
1. the structure of the high shield effectiveness electromagnetic shield door in broadband, which comprises at least doorframe, metal and enclose retaining mechanism, beryllium-bronze reed, the shielding groove that connects on frame (1), the door body, it is characterized in that: its door body, doorframe, metal enclose frame, retaining mechanism is a shielding construction, door body middle part is fixed with the retaining mechanism of band door handle (6) for wearing couplet on the door dynamic formula, promptly all there is door handle (6) the inside and outside both sides of door, inside and outside door, all can open the door simultaneously, be fixed with 360 ° of beryllium-bronze reeds (16) at door body via hole inner ring two ends and be connected with retaining mechanism with door handle (6); Doorframe be metal enclose frame (1) four limit have the shielding groove (17), the interior the right and left of shielding groove (17) is bonded with beryllium-bronze reed (16), the right and left beryllium-bronze reed (16) circular arc top after bonding is closely contact mutually, and the door body is that its outer rim of shield door section bar (2) is connected with metal backing (19).
2. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 1, it is characterized in that: metal encloses in the outer ring groove of frame (1) electro-insulating rubber liner (14); Doorframe is that aluminium extruded sections (15) surface coverage has nickel-phosphorus alloy and closely wraps up shielding groove (17) both sides by sunk screw, and is not connected with beryllium-bronze reed (16); Metal encloses frame (1) inboard and also is fixed with metal boss (18).
3. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 1, it is characterized in that: described door body be a section bar (2) for constructed of aluminium in the outer steel and around be surrounded by layer (4), door section bar (2) one side upper/lower terminals are fixed with door-hinge respectively, door section bar (2) encloses frame (1) by door-hinge and metal fixedlys connected, and door-hinge is made of metal hinge (9) and metal rotating shaft (10); Door section bar (2) opposite side upper/lower terminal has sliding tray (3) by screw respectively, and the middle part is fixed with door handle (6).
4. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 1, it is characterized in that: described retaining mechanism is by door handle (6), door hinge (7), metal is crossed bar (11) and is constituted, the metal of retaining mechanism is crossed bar (11) and is bonded with 360 ° of beryllium-bronze reeds (16) with via hole inner ring two ends and is connected, door hinge (7) is a bikini door hinge structure, its middle part links to each other with door handle (6) by metal trace (5), and be screwed with door section bar (2) exterior skin and be connected, on the door hinge (7), following two ends are fixed with metal roller (13), metal roller (13) is fixed in the sliding tray (3), and metal encloses the locking member (8) on the frame (1), door handle (6) on locking draw-in groove (12) and the door section bar (2), door hinge (7), metal is crossed bar (11) and has been constituted locking device.
5. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 1, it is characterized in that: metal encloses frame (1) and is the external surrounding frame of shield door, the anti-oxidant electroplating processes of surface conductance, aluminium material in the outer steel, aluminium sheet and mild steel steel plate, gross thickness are 8mm～15mm; Door section bar (2) is an aluminium hollow core structures in the outer steel, polishes behind the whole full welds of seam crossing, and aluminium sheet and mild steel steel plate gross thickness are 4mm～10mm; Doorframe aluminium extruded sections (15) surface is implemented plating and is coated with nickel-phosphorus alloy, the anti-oxidant electroplating processes of surface conductance, and closely wrapping up shielding groove (17) both sides and not being connected with beryllium-bronze reed (16) by sunk screw, doorframe aluminium extruded sections (15) thickness is 1mm～2.5mm; Door hinge (7) is a steel matter, and the anti-oxidant electroplating processes of conduction is adopted on the surface.
6. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 4, it is characterized in that: locking member (8) is steel matter, is shaped as rectangle, and the centre has 15 ° of inclination angle locking draw-in grooves; Door lock is a copper material, and with turn behind the key insertion lock core, the card article in the door lock can eject, and will lock draw-in groove (12) blocking-up.
7. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 1, it is characterized in that: beryllium-bronze reed (16) is for adhered, circular shape, the bottom surface has conduction to use double-sided adhesive glue, is bonded in inboard both sides of shielding groove (17) and door section bar (2) groove inboard on one side; After bonding, beryllium-bronze reed (16) and shielding groove (17) resistance≤2m Ω, the compressive strain scope is 20%～80%, electromagnetic frequency is shield effectiveness 〉=70dB between 150KHz～18GHz.
8. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 2, it is characterized in that: described metal boss (18) is a copper material, the anti-oxidant electroplating processes of surface conductance, and 8 ° inclined-plane arranged, being fixed on metal by sunk screw encloses around frame (1) inboard, when shield door was closed, beryllium-bronze reed (16) deflection was 70%.
9. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 1, it is characterized in that: described shielding groove (17) is embedded in metal and encloses on the interior frame all around of frame (1), the anti-oxidant electroplating processes of surface conductance, both sides are equipped with doorframe aluminium extruded sections (15), the enforcement plating is coated with nickel-phosphorus alloy and closely wraps up by sunk screw, shielding groove (17) interior the right and left is bonded with beryllium-bronze reed (16), and the right and left beryllium-bronze reed (16) the circular arc top after bonding closely contacts mutually.
10. according to the structure of the high shield effectiveness electromagnetic shield door in a kind of broadband described in the claim 1, it is characterized in that: described metal backing (19) is steel matter, the anti-oxidant electroplating processes of surface conductance, be welded on around a section bar (2) outside, metal backing (19) is welded on a section bar (2) two circles, the centre that one circle metal backing (19) inserts the right and left beryllium-bronze reed (16) in the shielding groove (17), to around its section bar outer rim, form 360 ° of conducting surfaces, bulk shielding, the electro-insulating rubber liner (14) that another circle is installed in metal encloses the outer ring groove of frame (1) closely is crimped on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020697798 CN202000863U (en) | 2010-12-20 | 2010-12-20 | Structure of broadband electromagnetic shielding door with high shielding efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020697798 CN202000863U (en) | 2010-12-20 | 2010-12-20 | Structure of broadband electromagnetic shielding door with high shielding efficiency |
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| Publication Number | Publication Date |
|---|---|
| CN202000863U true CN202000863U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020697798 Expired - Fee Related CN202000863U (en) | 2010-12-20 | 2010-12-20 | Structure of broadband electromagnetic shielding door with high shielding efficiency |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422794A (en) * | 2013-08-30 | 2013-12-04 | 成都卫士通信息产业股份有限公司 | Thin-wall electromagnetic shielding door |
| CN108204193A (en) * | 2016-12-16 | 2018-06-26 | 无锡市蜂鸣屏蔽设备科技有限公司 | A kind of intelligent shielding door |
| CN112261861A (en) * | 2020-11-06 | 2021-01-22 | 中国电子科技集团公司第十四研究所 | Sealing door with electromagnetic shielding function |
-
2010
- 2010-12-20 CN CN 201020697798 patent/CN202000863U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422794A (en) * | 2013-08-30 | 2013-12-04 | 成都卫士通信息产业股份有限公司 | Thin-wall electromagnetic shielding door |
| CN103422794B (en) * | 2013-08-30 | 2016-01-06 | 成都卫士通信息产业股份有限公司 | A kind of thin-walled electromagnetic shield door |
| CN108204193A (en) * | 2016-12-16 | 2018-06-26 | 无锡市蜂鸣屏蔽设备科技有限公司 | A kind of intelligent shielding door |
| CN112261861A (en) * | 2020-11-06 | 2021-01-22 | 中国电子科技集团公司第十四研究所 | Sealing door with electromagnetic shielding function |
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