CN207752051U - Shielded box - Google Patents
Shielded box Download PDFInfo
- Publication number
- CN207752051U CN207752051U CN201820080986.1U CN201820080986U CN207752051U CN 207752051 U CN207752051 U CN 207752051U CN 201820080986 U CN201820080986 U CN 201820080986U CN 207752051 U CN207752051 U CN 207752051U
- Authority
- CN
- China
- Prior art keywords
- shielding
- babinet
- layer
- iron
- nickel alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model babinet includes the babinet with shielding cavity and the shielding box and measurement jig being arranged in the shielding cavity, the babinet includes the layer of iron-nickel alloy being stacked and aluminum layer, the inner surface close to the shielding cavity side in the babinet is arranged in the layer of iron-nickel alloy, the side surface far from shielding cavity in the babinet is arranged in the aluminum layer, the aluminum layer wraps up the shielding cavity, for shielding outer signals；The layer of iron-nickel alloy at least covers the aluminum layer.It can solve high-frequency signal interference and low frequency signal is avoided to interfere, preferable test environment can be provided, ensure test accuracy.
Description
Technical field
The utility model belongs to radio frequency testing field, more particularly to a kind of shielded box.
Background technology
Shielded box, also known as electromagnetic shielding box, shielding box etc..Predominantly radio communication product manufacturing industry provides efficiently isolation
Test environment.Radio frequency testing field currently on the market based on common shielded box is mainly shielded with high-frequency signal, is believed in high/low frequency
Number with test occasion, shielded box is only capable of playing shielding action to high-frequency signal, can not be shielded to low frequency signal.This is to test
As a result there is large effect.
Therefore, it is really necessary to provide a kind of new shielded box, to solve the above problems.
Utility model content
In view of the deficiencies of the prior art, the utility model provide one kind can solve high-frequency signal interference and
The shielded box for avoiding low frequency signal from interfering.
In order to solve the above technical problems, one aspect of the present invention is：A kind of shielded box is provided, including is had
The babinet of shielding cavity and the shielding box and measurement jig being arranged in the shielding cavity, the babinet includes the iron being stacked
Nickel alloy layer and aluminum layer, the inner surface close to the shielding cavity side in the babinet is arranged in the layer of iron-nickel alloy, described
The side surface far from shielding cavity in the babinet is arranged in aluminum layer, and the aluminum layer wraps up the shielding cavity, outer for shielding
Sector signal；The layer of iron-nickel alloy at least covers the aluminum layer.
Preferably, the aluminum layer is completely covered in the layer of iron-nickel alloy.
Preferably, the layer of iron-nickel alloy is additionally provided with absorbing material close to a side surface of the shielding cavity.
Preferably, the shielding box includes the box body being prepared by iron-nickel alloy, and test is equipped in the box body
PCB, the shielding box further include that self-test PCB extends to elongated end outside shielding box.
Preferably, the elongated end is FPC soft arranging wires.
Preferably, the servo motor for driving product movement to be measured, the servo electricity are provided on the measurement jig
The shielding case of iron-nickel alloy is enclosed on machine.
Preferably, the babinet includes mutually independent shielding cavity and control chamber, and the aluminum layer wraps up the shielding cavity,
And the shielding cavity and the control chamber are kept apart.
Preferably, the babinet includes main part, is located at the upper cover and pedestal of the main part both sides, and the control chamber is set
It sets on the base, the shielding cavity is arranged on the main part.
Preferably, the shielded box, which is provided with, can carry the product inlet/outlet mechanism to be measured that test smelting tool is pulled out or withdrawn.
Preferably, the product inlet/outlet mechanism to be measured is arranged in the side of the babinet, can pull out or receive in the horizontal direction
It returns comprising the operation console of horizontal direction, the sealing sliding door of vertical direction and connection seal the sliding rail of sliding door and babinet, described
Measurement jig and the shielding box are arranged on the operation console, side wall of the sealing sliding door in retracted state and the babinet
Form sealing structure.
Preferably, the slideway of the accommodating sliding rail is provided on the pedestal of the babinet, the sealing is pulled described in drive
Sliding rail in the horizontal direction with the slideway relative motion.
Compared with prior art, the utility model has the beneficial effects that：Babinet include the layer of iron-nickel alloy that is stacked and
Aluminum layer, aluminum layer wraps up the shielded box, for shielding outer signals；The layer of iron-nickel alloy at least covers the aluminium sheet
Layer, for shielding the interference between internal different elements.It can solve high-frequency signal interference and avoid low frequency signal
Interference can provide preferable test environment, ensure test accuracy.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model shielded box；
Fig. 2 is the sectional view of the utility model shielded box；
Fig. 3 is the structural schematic diagram of the utility model shielding box；
Fig. 4 is the structural scheme of mechanism of servo motor in the utility model measurement jig.
Specific implementation mode
The utility model is described further with reference to embodiment
As depicted in figs. 1 and 2, it is the shielded box of the utility model, including babinet 1, the shielding box 2 that is arranged in babinet 1
With measurement jig 3.
Babinet 1 includes main part 11, forms the upper of inner space between about 11 both sides of main part and main part 11
Lid 12 and pedestal 13.Inner space is divided into mutually independent shielding cavity 101 and control chamber 102, specifically in present embodiment
In, pedestal 13 is hollow-core construction, and control chamber 102 is arranged on pedestal 13.Wherein main part 11 is made of side wall and bottom wall, upper cover
12 lids are located at 11 top of main part with 11 common row of main part at shielding cavity 101, further, between upper cover 12 and main part 11
It is connected and sealed with sealing structure.The material preparation identical as 11 use of main part of upper cover 12 forms, that is, upper cover 12 and main body
Portion 11 is two parts of 1 split settings of babinet, in selectable other embodiment, or integral structure is not set
Openable upper cover is set, but uses the babinet of upper-lower seal setting, and can implement.For housing in controller 102
Circuit, the components such as switch, processor realize the control action to entire shielded box.
In addition, babinet 1, which is additionally provided with, can carry the product inlet/outlet mechanism 14 to be measured that test smelting tool is pulled out or withdrawn.In this reality
It applies in mode, product inlet/outlet mechanism 14 to be measured is arranged in the side of the babinet 1, can pull out or withdraw in the horizontal direction, specifically
, including the sealing sliding door 142 of the operation console 141 of horizontal direction, vertical direction and connection sealing sliding door 142 and babinet 1
Sliding rail 143.Measurement jig 3 and shielding box 2 are arranged on operation console 141, and sealing sliding door 142 is in the side of retracted state and babinet 1
Wall forms sealing structure.The slideway for coordinating with sliding rail 143 is provided on corresponding babinet 1, sealing sliding door 142 drives sliding rail
143 and operation console 141 in the horizontal direction with slideway relative motion.Further, the outside of sealing sliding door 142 is additionally provided with handle
Hand, in use, pull handle pull out product inlet/outlet mechanism 14 to be measured, and product to be measured is put on measurement jig 3,
Push sealing sliding door so that product to be measured, which enters in seal chamber, to be tested.Certainly, in selectable other embodiment,
Product inlet/outlet mechanism 14 to be measured or other structures, such as using one end as shaft, flip to the outside pull-out, and can be real
It applies.
Babinet 1 includes the layer of iron-nickel alloy 1011 being stacked and aluminum layer 1012, and layer of iron-nickel alloy 1011 is arranged in case
Inner surface and upper cover 12 in main part 11 is arranged close to the inner surface of 101 side of shielding cavity, i.e. layer of iron-nickel alloy 1011 in body 1
Inner surface；The side surface far from shielding cavity 101, i.e. nickel alloy layer 1011 and aluminum layer in babinet 1 is arranged in aluminum layer 1012
The composite layer of 1012 groups of layer structures, the babinet 1 of this structure have a high magnetic property, and nickel alloy layer 1011 and have
The effect of low frequency signal is shielded, aluminum layer 1012 has the function of shielding high-frequency signal.The body structure that the utility model uses
It can ensure that babinet can shield low frequency signal and high-frequency signal simultaneously.Aluminum layer 1012 wraps up shielding cavity, and shields 101 by described
Chamber is kept apart with control chamber 102.Wherein aluminum layer 1012 wraps up entire shielding cavity 1012, the interference for shielding outer signals；
In the present embodiment, at least coverage test jig 3 of layer of iron-nickel alloy 1011 and 2 region of shielding box.That is 3 He of measurement jig
Projection of the shielding box 2 on 1 side wall of babinet, fully falls in layer of iron-nickel alloy 1011.In other selectable embodiments,
Preferably, aluminum layer 1012 is completely covered in dilval layer 1011, in this way, shield effectiveness can be further increased.Further,
Layer of iron-nickel alloy is additionally provided with absorbing material close to a side surface of the shielding cavity, in this way, interference can be further decreased.
As shown in figure 3, shielding box 2 includes the box body 21 being prepared by iron-nickel alloy, test is equipped in the box body
PCB (Printed Circuit Board, printed circuit board) 22, shielding box 2 further includes that self-test PCB 22 extends to shielding box
Realize the elongated end 23 being electrically connected in 21 outsides.Specifically in the present embodiment, elongated end is FPC (Flexible Printed
Circuit, flexible circuit board) soft arranging wire.
As shown in figure 4, being provided with the servo motor 31 for driving product movement to be measured, servo motor on measurement jig 3
The shielding case 32 of iron-nickel alloy is enclosed on 31.
The shielding case on box body 21 and servo motor 31 that iron-nickel alloy on shielding box 2 is prepared, can be upper
The electromagnetic interference between element is further decreased on the basis of stating so that the isolation effect of product is more preferable.
It is verifying the utility model shielded box in actual use, can first carry out the verification of isolation degree test value, specifically
Two loop aerials to be arranged, one is arranged inside shielded box as reception antenna, setting conduct outside shielded box
Transmitting antenna, is arranged in shielded box to be tested simultaneously, two antennas is connected on signal generator and frequency spectrograph, at this
Test value is recorded respectively when utility model shielded box is opened and when sealing is closed, then isolation=∣ of the utility model shielded box
Closing lid record value-, uncap record Zhi ∣.
Compared with prior art, the utility model has the beneficial effects that：Babinet include the layer of iron-nickel alloy that is stacked and
Aluminum layer, aluminum layer wraps up the shielded box, for shielding outer signals；The layer of iron-nickel alloy at least covers the aluminium sheet
Layer, for shielding the interference between internal different elements.It can solve high-frequency signal interference and avoid low frequency signal
Interference can provide preferable test environment, ensure test accuracy.
It should be noted that in the description of the present invention, it should be understood that term "center", "upper", "lower",
"front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " forward direction ", " reversed ", " both ends ", etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, does not indicate or imply the indicated device or element must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be
It is connected directly, it can also indirectly connected through an intermediary, unless otherwise restricted clearly.For the ordinary skill people of this field
For member, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combines and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is,
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of shielded box includes that babinet and the shielding box being arranged in the shielding cavity and test with shielding cavity are controlled
Tool, which is characterized in that the babinet includes the layer of iron-nickel alloy being stacked and aluminum layer, and the layer of iron-nickel alloy is arranged in institute
Inner surface of the babinet close to the shielding cavity side is stated, the side table far from shielding cavity in the babinet is arranged in the aluminum layer
Face, the aluminum layer wraps up the shielding cavity, for shielding outer signals；The layer of iron-nickel alloy at least covers the aluminium sheet
Layer.
2. shielded box according to claim 1, which is characterized in that the aluminum layer is completely covered in the layer of iron-nickel alloy.
3. shielded box according to claim 1, which is characterized in that the layer of iron-nickel alloy is close to the side of the shielding cavity
Surface is additionally provided with absorbing material.
4. shielded box according to claim 1, which is characterized in that the shielding box includes being prepared by iron-nickel alloy
Box body, is equipped with test PCB in the box body, and the shielding box further includes that self-test PCB extends to extension outside shielding box
End.
5. shielded box according to claim 4, which is characterized in that the elongated end is FPC soft arranging wires.
6. shielded box according to claim 1, which is characterized in that be provided on the measurement jig for driving production to be measured
The servo motor of product movement, the shielding case of iron-nickel alloy is enclosed on the servo motor.
7. shielded box according to claim 1, which is characterized in that the babinet includes mutually independent shielding cavity and control
Chamber, the aluminum layer wraps up the shielding cavity, and the shielding cavity and the control chamber are kept apart.
8. shielded box according to claim 7, which is characterized in that the babinet includes main part, is located at the main part
The upper cover and pedestal of both sides, on the base, the shielding cavity is arranged on the main part for the control chamber setting.
9. shielded box according to claim 1, which is characterized in that the shielded box, which is provided with, can carry test smelting tool pull-out
Or the product inlet/outlet mechanism to be measured withdrawn, the product inlet/outlet mechanism to be measured are arranged in the side of the babinet, it can be along level side
It to pull-out or withdraws comprising the operation console of horizontal direction, the sealing of vertical direction are pulled and connection sealing is pulled and babinet
Sliding rail, the measurement jig and the shielding box be arranged on the operation console, and the sealing is pulled in retracted state and institute
The side wall for stating babinet forms sealing structure.
10. shielded box according to claim 9, which is characterized in that be provided with the accommodating cunning on the pedestal of the babinet
The slideway of rail, sealing sliding door drive the sliding rail in the horizontal direction with the slideway relative motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820080986.1U CN207752051U (en) | 2018-01-17 | 2018-01-17 | Shielded box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820080986.1U CN207752051U (en) | 2018-01-17 | 2018-01-17 | Shielded box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207752051U true CN207752051U (en) | 2018-08-21 |
Family
ID=63153406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820080986.1U Active CN207752051U (en) | 2018-01-17 | 2018-01-17 | Shielded box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207752051U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353795A (en) * | 2018-09-04 | 2019-02-19 | 广州市诚臻电子科技有限公司 | A kind of screened room of draw and insert-type replacement monitor station |
| CN113466496A (en) * | 2021-06-09 | 2021-10-01 | 杭州永谐科技有限公司 | OTA terminal performance test revolving stage |
| CN114423266A (en) * | 2021-12-23 | 2022-04-29 | 东莞市海轮电子科技有限公司 | Testing device for medical wireless communication |
-
2018
- 2018-01-17 CN CN201820080986.1U patent/CN207752051U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109353795A (en) * | 2018-09-04 | 2019-02-19 | 广州市诚臻电子科技有限公司 | A kind of screened room of draw and insert-type replacement monitor station |
| CN113466496A (en) * | 2021-06-09 | 2021-10-01 | 杭州永谐科技有限公司 | OTA terminal performance test revolving stage |
| CN113466496B (en) * | 2021-06-09 | 2023-06-20 | 杭州永谐科技有限公司 | OTA terminal performance test revolving stage |
| CN114423266A (en) * | 2021-12-23 | 2022-04-29 | 东莞市海轮电子科技有限公司 | Testing device for medical wireless communication |
| CN114423266B (en) * | 2021-12-23 | 2024-03-08 | 东莞市海轮电子科技有限公司 | Testing device for medical wireless communication |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207752051U (en) | Shielded box | |
| CN105099581B (en) | A kind of radio-frequency performance test device | |
| CN201429632Y (en) | Portable electromagnetic shielded box | |
| CN210051801U (en) | Test shielding box | |
| CN204188671U (en) | A kind of double flute pressing shielded box | |
| KR100964728B1 (en) | Anntena apparatus and method for operating thereof | |
| CN210720581U (en) | High radio frequency shielding test equipment | |
| CN101593565B (en) | Portable electromagnetic shielding box used for testing weak signals of mobile terminal | |
| CN104116509A (en) | Magnetic resonance imaging system and method for infants | |
| CN102300445A (en) | Shielding device for preventing electromagnetic wave interference | |
| US10944168B2 (en) | Medical device | |
| CN110833433A (en) | Portable ultrasonic diagnostic apparatus | |
| CN216670058U (en) | Movable antenna rapid testing device | |
| CN206193063U (en) | Upset gate -type shielded cell | |
| CN207744339U (en) | New-type radio-frequency test double layer screen case | |
| EP2580549B1 (en) | A refrigerator | |
| CN109640608A (en) | A kind of rectangular opening metal cavity improving shield effectiveness | |
| CN212064759U (en) | Shielding box | |
| KR100222659B1 (en) | Multi-purpose anechoic chamber for measuring antenna performance and emi/emc | |
| CN104363745A (en) | Electro magnetic compatibility shielding box | |
| CN104229573B (en) | The control dish of elevator | |
| CN208319070U (en) | Sound-proof housing and cooking machine | |
| CN207992355U (en) | A kind of test device for the shielding electromagnetic interference that space can open up | |
| CN103439536B (en) | A kind of agitating device for the test of electromagnetic shielding shell shield effectiveness | |
| CN203912397U (en) | Panel for electrical apparatus and electrical apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |