CN203441320U - Thin-wall electromagnetic shielding door - Google Patents
Thin-wall electromagnetic shielding door Download PDFInfo
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- CN203441320U CN203441320U CN201320538673.3U CN201320538673U CN203441320U CN 203441320 U CN203441320 U CN 203441320U CN 201320538673 U CN201320538673 U CN 201320538673U CN 203441320 U CN203441320 U CN 203441320U
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- door
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- electromagnetic shield
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Abstract
The utility model provides a thin-wall electromagnetic shielding door which can be used for shielding the electromagnetic field leakage of a shell of electronic equipment. The thin-wall electromagnetic shielding door comprises a door sheet, a cushion block, a fixed block, a shaft pin, a locking piece and electric conduction gaskets, a mounting groove is formed beside an electromagnetic field leakage portion, the cushion block is fixed to the inner wall of the shell of the electronic equipment through screws, the fixed block penetrates through the mounting groove and is connected and fixed with the cushion block, one side of the door sheet is in rotary connection with the fixed block through the shaft pin, the other side of the door sheet is in locking connection with the shell of the electronic equipment through the locking piece, and the electric conduction gaskets are pasted on the periphery of the inner side of the door sheet. The thin-wall electromagnetic shielding door is compact in whole combination component, easy and convenient to process and assemble and capable of shielding the electromagnetic field leakage portion of the equipment well, and it is guaranteed that the equipment protects electromagnetic signals from leakage and interference.
Description
Technical field
The utility model relates to Structural Design of Electronic System field, especially relates to a kind of thin-walled electromagnetic shield door.
Background technology
Along with the fast development of electronic technology, modern communications product emerges in multitude on market.Yet, due to electronics frequency domain scope by low frequency to the even extensive use of hyperfrequency of high frequency, cause easily growing between electronic equipment electromagnetic interference.During our deisgn product, must pay attention to the environment collaborative work ability between electronic equipment---be the Electromagnetic Compatibility of electronic equipment.Electronic equipment casing generally adopts thin-wall metal to be processed to form closed case and panel thereof, this cabinet is exactly a good shield, but because such as display interface, console switch and button, external interface, ventilation and heat, processing and installation etc. must arrange a lot of holes, gap or window, thereby destroyed shielding case body, this must bring electromagnetic leakage and interference, so we must take corresponding safeguard procedures while designing.
Summary of the invention
The purpose of this utility model is: the problem existing for prior art, provide a kind of whole combiner compact, process and assemble is easy, the good electromagnetic field leak of shielding device, and assurance equipment is to the good anti-leak of electromagnetic signal, jamming-proof thin-walled electromagnetic shield door.
The purpose of this utility model is achieved through the following technical solutions:
A kind of thin-walled electromagnetic shield door, electromagnetic field in order to shielded electronic equipment shell leaks, it is characterized in that, this shield door comprises door-plate, cushion block, fixed block, pivot pin, locking member and conductive spacer, a mounting groove is offered on the side of described electromagnetic field leak, described cushion block is fixed by screws on the inwall of electronic equipment casing, described fixed block is connected and fixed through mounting groove and cushion block, one side of described door-plate is rotationally connected by pivot pin and fixed block, the opposite side of door-plate is connected by locking member and electronic equipment casing are sealed, described conductive spacer sticks on door-plate inner face surrounding.
Preferably, the two ends of this fixed block are to the same side to being respectively formed with a lug boss, on each lug boss, offer a through hole, one side two ends of described door-plate also correspondence are respectively provided with a fitting projection portion, in each fitting projection portion, offer a through hole, described pivot pin is provided with two, each a corresponding lug boss and fitting projection portion of connecting.
Preferably, the inner face of described door-plate is provided with latticed ribs.
Preferably, the outside of described door-plate is provided with strip groove.
Preferably, the cross section of described conductive spacer is zigzag or waveform.
Preferably, described conductive spacer is beryllium brass reed.
Preferably, described locking member is knob bolts.
Preferably, the contact surface of the inwall of described cushion block and electronic equipment casing scribbles DJB-823 electronics oil soakage layer.
Preferably, described electromagnetic field leak is for owing to installing and processing needs hole, gap or the window that offer on electronic equipment casing.
Compared with prior art, the utlity model has following advantage:
1, having realized gap effectively processes: when this electromagnetic shield door body screws state in closing the door, door with anterior aluminum deck between exist 4 to contact gap; Left sidecar body hinge through structure nature is divided into two parts in left and right by door body, door body right-hand component 4 limits are pasted with beryllium brass reed, good with anterior aluminum deck sinking doorframe end face close contact, electrically conductive continuity, door body right-hand component forms the electromagnetism airtight cavity of a connection together with cabinet; Door body left-hand component, because 4 end faces of cushion block part are fastenedly connected with the aluminum deck back side, and has all smeared DJB-823 electronics oil soakage layer after contact surface Precision Machining, surface conductance oxidation, therefore that electrically conductive continuitys are stitched in these 4 contacts is good; Therefore the effective shutoff of this electromagnetic shield door body the required perforate of function on case front panel, kept whole cabinet to remain a good shielding cavity, thereby assurance equipment is to the good anti-leak of electromagnetic signal, anti-tampering!
2, slim door body is compact practical: cushion block, fixed block, pivot pin, four parts of door-plate had both completed self basic function, and the turning joint of ingenious formation door is secondary again, again gap is effectively processed simultaneously; Whole combiner is compact, and process and assemble is easy, in the situation that not changing original electronic equipment front panel design of material, adds this similar thin electromagnetic shield door, can effectively meet the electromagnetic protection of the anterior function opening of equipment, has good practicality.
3, be just used on electronic product thin-wall metal cabinet the protection of windowing greatly, concentrating the positions such as perforate, this design is applied on a lot of products, respond well.
Accompanying drawing explanation
Fig. 1 is traditional electromagnetic shielding case front panel structural representation;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the inner face structural representation of door-plate;
Fig. 4 is the structural representation of the outside of door-plate;
Fig. 5 is the left TV structure schematic diagram of Fig. 3;
Fig. 6 is the sectional structure schematic diagram of bowing of Fig. 3;
Fig. 7 is the structural representation of cushion block;
Fig. 8 is that the B-B of Fig. 7 is to sectional structure schematic diagram;
Fig. 9 is the structural representation of fixed block;
Figure 10 is the left TV structure schematic diagram of Fig. 9;
Figure 11 is the structural representation of pivot pin;
Figure 12 is the structural representation of knob bolts.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
embodiment
Shown in A in Fig. 1, traditional electromagnetic shielding case on its anterior aluminum deck because the parts such as several groups of configuration interfaces, toggle switch and USB socket need to be set, thereby can form a lot of holes, gap or window (we claim that these holes, gap or window etc. are electromagnetic field leak), can destroy shielding case body like this, this must bring electromagnetic leakage and interference.
The utility model is in order to realize electromagnetic protection, shielded electronic equipment shell is (as cabinet, below all take cabinet as embodiment) electromagnetic field leak, so be provided with an electromagnetic shield door on the anterior aluminum deck of cabinet 6, its structure as shown in Figure 2, comprises door-plate 1, cushion block 2, fixed block 3, pivot pin 4, locking member 5 and conductive spacer 7.A mounting groove 61 is offered on the side of electromagnetic field leak A, for fixedly door-plate is installed.Cushion block 2 is fixed by screws on the inwall of cabinet 6, and mounting groove 61 is just being pasted in its position.Fixed block 3 is connected and fixed from cabinet 6 outsides through mounting groove 61 and cushion block 2.The two ends of fixed block 3 to being respectively formed with a lug boss 31, are offered a through hole 32 to the same side on each lug boss 31, for coordinating, door-plate 1 is installed.Cushion block is provided with installation site B in two ends Shang Xia 2, and the two ends up and down of fixed block 3 are fixing by M3x6 sunk screw and cushion block 2.One side two ends of door-plate 1 also correspondence are respectively provided with a fitting projection portion 13, offer a through hole 14 in each fitting projection portion 13.Pivot pin 4 has two, and a bearing pin is for connecting lug boss and the fitting projection portion of upper end, and another is connected door-plate 1 thereby realize for connecting lug boss and the fitting projection portion of lower end with fixed block 3, and door-plate 1 can rotate along bearing pin 4.The opposite side of door-plate 1 is connected with cabinet 6 is sealed by locking member 5, when needs are closed door-plate 1, by locking member 5, door-plate 1 and cabinet 6 are locked together, when needs opening-door plate 1, open locking member 5, door-plate 1 can be separated with cabinet 6, and the locking member of the present embodiment adopts knob bolts, for convenience of through knob bolts, also on door-plate 1, offer hole 12.Meanwhile, also conductive spacer 7 is sticked on to door-plate 1 inner face surrounding, when door-plate is closed, just can realizes electromagnetic field leak is shielded completely like this.
For when increasing shield door, do not increase the weight of multiple cases, therefore can change the project organization of door-plate, thereby alleviate its weight.Mainly by the inner face at door-plate 1, be provided with latticed ribs 11, outside that simultaneously also can door-plate is provided with strip groove 12.Door-plate thickness 1.5mm, frame and middle part are stiffening rib thickness 3mm.So just, can when guaranteeing that door-plate 1 has some strength, can alleviate a lot of weight, making material that so also can corresponding minimizing door-plate, reduces costs.
In order further to optimize shield effectiveness, prevent door plate deformation or be not closed completely etc.s causes electromagnetic leakage, and cross section that can conductive spacer 7 is set to the shapes such as zigzag or waveform, increases the contact surface of door-plate 1 and cabinet 6.
Although abovementioned steps has realized structural shielding, but in order to realize better shield effectiveness, also can select the material of each parts, cabinet panel adopts almag plate, and door-plate 1 adopts hot rolled steel plate, and cushion block 2 adopts almag plate, fixed block 3 adopts hot rolled steel plate, pivot pin 4 adopts stainless steel bar, and locking member 5 adopts stainless steel bar, and conductive spacer 7 adopts beryllium brass reed.
For cushion block is contacted with cabinet 6 well, also the contact surface at cushion block and cabinet inwall scribbles DJB-823 electronics oil soakage layer.
During installation, first upper and lower two fixed blocks, 3 use M3x6 sunk screws are connected fastening with cushion block 2, then by upper lower shaft, door-plate 1 is installed and is connected with fixed block 3, form whole door body component, finally these parts are located door-plate 1 part to release, passed through M2.5x8 screw the fastening installation of cushion block and the anterior aluminum deck back side from the vertical elongated slot of front panel (be mounting groove, mounting groove also can be horizontal elongated slot) from cabinet inside.
The utility model has been realized gap and has effectively been processed: when this electromagnetic shield door body screws state in closing the door, door with anterior aluminum deck between exist 4 to contact gap; Left sidecar body hinge through structure nature is divided into two parts in left and right by door body, door body right-hand component 4 limits are pasted with beryllium brass reed, good with anterior aluminum deck sinking doorframe end face close contact, electrically conductive continuity, door body right-hand component forms the electromagnetism airtight cavity of a connection together with cabinet; Door body left-hand component, because 4 end faces of cushion block part are fastenedly connected with the aluminum deck back side, and has all smeared DJB-823 electronics oil soakage layer after contact surface Precision Machining, surface conductance oxidation, therefore that electrically conductive continuitys are stitched in these 4 contacts is good; Therefore the effective shutoff of this electromagnetic shield door body the required perforate of function on case front panel, kept whole cabinet to remain a good shielding cavity, thereby assurance equipment is to the good anti-leak of electromagnetic signal, anti-tampering!
Meanwhile, slim door body of the present utility model is compact practical: cushion block, fixed block, pivot pin, four parts of door-plate had both completed self basic function, and the turning joint of ingenious formation door is secondary again, again gap is effectively processed simultaneously; Whole combiner is compact, and process and assemble is easy, in the situation that not changing original electronic equipment front panel design of material, adds this similar thin electromagnetic shield door, can effectively meet the electromagnetic protection of the anterior function opening of equipment, has good practicality.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any modifications of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a thin-walled electromagnetic shield door, electromagnetic field in order to shielded electronic equipment shell leaks, it is characterized in that, this shield door comprises door-plate, cushion block, fixed block, pivot pin, locking member and conductive spacer, a mounting groove is offered on the side of described electromagnetic field leak, described cushion block is fixed by screws on the inwall of electronic equipment casing, described fixed block is connected and fixed through mounting groove and cushion block, one side of described door-plate is rotationally connected by pivot pin and fixed block, the opposite side of door-plate is connected by locking member and electronic equipment casing are sealed, described conductive spacer sticks on door-plate inner face surrounding.
2. a kind of thin-walled electromagnetic shield door according to claim 1, it is characterized in that, the two ends of this fixed block are to the same side to being respectively formed with a lug boss, on each lug boss, offer a through hole, one side two ends of described door-plate also correspondence are respectively provided with a fitting projection portion, in each fitting projection portion, offer a through hole, described pivot pin is provided with two, each a corresponding lug boss and fitting projection portion of connecting.
3. a kind of thin-walled electromagnetic shield door according to claim 1, is characterized in that, the inner face of described door-plate is provided with latticed ribs.
4. a kind of thin-walled electromagnetic shield door according to claim 1, is characterized in that, the outside of described door-plate is provided with strip groove.
5. a kind of thin-walled electromagnetic shield door according to claim 1, is characterized in that, the cross section of described conductive spacer is zigzag or waveform.
6. a kind of thin-walled electromagnetic shield door according to claim 1 or 5, is characterized in that, described conductive spacer is beryllium brass reed.
7. a kind of thin-walled electromagnetic shield door according to claim 1, is characterized in that, described locking member is knob bolts.
8. a kind of thin-walled electromagnetic shield door according to claim 1, is characterized in that, the contact surface of described cushion block and the inwall of electronic equipment casing scribbles DJB-823 electronics oil soakage layer.
9. a kind of thin-walled electromagnetic shield door according to claim 1, is characterized in that, described electromagnetic field leak is for owing to installing and processing needs hole, gap or the window that offer on electronic equipment casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538673.3U CN203441320U (en) | 2013-08-30 | 2013-08-30 | Thin-wall electromagnetic shielding door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538673.3U CN203441320U (en) | 2013-08-30 | 2013-08-30 | Thin-wall electromagnetic shielding door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441320U true CN203441320U (en) | 2014-02-19 |
Family
ID=50092380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320538673.3U Withdrawn - After Issue CN203441320U (en) | 2013-08-30 | 2013-08-30 | Thin-wall electromagnetic shielding door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441320U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-08-30 CN CN201320538673.3U patent/CN203441320U/en not_active Withdrawn - After Issue
Cited By (2)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140219 Effective date of abandoning: 20160106 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |