CN204925185U - Test shielded cell - Google Patents
Test shielded cell Download PDFInfo
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- CN204925185U CN204925185U CN201520535389.XU CN201520535389U CN204925185U CN 204925185 U CN204925185 U CN 204925185U CN 201520535389 U CN201520535389 U CN 201520535389U CN 204925185 U CN204925185 U CN 204925185U
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- test
- shielded box
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Abstract
The utility model provides a test shielded cell relates to wireless technical field, test shielded cell includes: a housing, the casing includes: frame, lateral wall and the chamber door of parcel outside the frame, with support frame swing joint, that be used for fixed a plurality of test terminals, the support is including at least two -layer dead end clamp utensil, and set up many antennas on the frame, wherein, every layer of dead end clamp utensil corresponds an antenna, every antenna and the dead end clamp utensil parallel arrangement who corresponds, just every antenna and the dead end clamp that corresponds possess for the vertical height of casing bottom keeps unanimous, and two antennas that adjacent two -layer dead end clamp utensil corresponds are fixed with relative mode on the frame. Can place a plurality of test terminals in this test shielded cell simultaneously tests to can guarantee every test terminal received signal's in the box homogeneity.
Description
Technical field
The utility model relates to wireless technical field, particularly relates to a kind of test shielded box.
Background technology
In prior art, if there is multiple test terminal to need to put into test shielded box when testing, can only multiple test terminal be placed in same plane, the quantity that can place is very limited, in addition, the inside of general test shielded box adopts individual antenna, is unfavorable for the uniform Received signal strength in test terminal like this.
Utility model content
The utility model embodiment technical matters to be solved is, provides a kind of test shielded box, can place more test terminal, and can place by stage construction, and can ensure the homogeneity of each test terminal Received signal strength.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
The utility model embodiment provides a kind of test shielded box, comprising:
Housing, described housing comprises: framework, be wrapped in sidewall outside framework and a chamber door;
Be flexibly connected with described framework, for the support of fixing multiple test terminal, described support comprises at least two-layer terminal fixture; And
Be arranged on many antennas on framework, wherein, every layer of corresponding antenna of terminal fixture, every root antenna be arranged in parallel with corresponding terminal fixture, and every root antenna is consistent with the vertical height of corresponding terminal fixture relative to described housing bottom, two antennas that adjacent two layers terminal fixture is corresponding are fixed on said frame in an opposing fashion.
Further, described framework is provided with the first slide construction, described support is provided with the second slide construction coordinated with described first slide construction, by the cooperation of described first slide construction and the second slide construction, slide in the direction that described support can be extended along described first slide construction in described framework.
Further, described first slide construction is quiet slide rail.
Further, the terminal fixture of every one deck is provided with at least one for placing the groove of test terminal.
Further, the inside surface of described sidewall is provided with and inhales ripple layer.
Further, the material of described suction ripple layer is for inhaling ripple sponge, and the material of described sidewall is aluminum alloy materials.
Further, described antenna is omnidirectional antenna.
Further, the material of described support is nonmetallic materials.
Further, the structure of described support is engraved structure.
Further, described support and described chamber door are structure as a whole.
The beneficial effects of the utility model are:
In the test shielded box that the utility model embodiment provides, terminal fixture for placing test terminal has multilayer, every one deck can place at least one test terminal, concrete quantity can design according to actual needs, take full advantage of the inner space of test shielded box like this, substantially increase the quantity of placing terminal in test shielded box.Simultaneously, in order to coordinate multilayer terminal fixture structure, the test terminal Received signal strength enabling to be placed on terminal fixture is even, by rational deployment antenna placement location, ensures that the radial distance relative position of each terminal on this layer of terminal fixture and this antenna is consistent.
Accompanying drawing explanation
Fig. 1 represents the test shielded box side perspective structural representation that the utility model embodiment provides;
Fig. 2 represents the test shielding box structure schematic diagram that the utility model embodiment provides;
Fig. 3 represents the supporting structure schematic diagram that the utility model embodiment provides.
Description of reference numerals:
1, housing; 2, support; 3, antenna; 101, framework; 102, chamber door; 103, the first slide construction; 201, terminal fixture; 202, groove.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.
The utility model embodiment provides a kind of test shielded box, and as depicted in figs. 1 and 2, described test shielding case comprises:
Housing 1, described housing 1 comprises: framework 101, be wrapped in sidewall outside framework 101 and a chamber door 102;
Be flexibly connected with described framework 101, for the support 2 of fixing multiple test terminal, described support 2 comprises at least two-layer terminal fixture 201; And
Be arranged on the many antennas 3 on framework 101, wherein, every layer of corresponding antenna 3 of terminal fixture, every root antenna 3 be arranged in parallel with corresponding terminal fixture 201, and every root antenna 3 is consistent relative to the vertical height bottom described housing 1 with corresponding terminal fixture 201, two antennas 3 of adjacent two layers terminal fixture 201 correspondence are fixed on described framework 101 in an opposing fashion.
The test shielded box that the utility model embodiment provides makes full use of the inner space of test shielded box, by design multilayer terminal fixture 201 structure, make can place more test terminal in test shielded box, wherein, the terminal fixture 201 of every one deck can place at least one test terminal, and concrete quantity can design according to actual needs.Meanwhile, in order to ensure the homogeneity of each test terminal Received signal strength, the antenna amount in reasonable Arrangement test shielded box and position, improve the test effect of test terminal.
In the utility model embodiment, in order to realize testing shielded box cavity in being uniformly distributed of wireless signal, mainly design from two aspects.
1. the design of inside antenna
Electromagnetic Wave Propagation and radiation are all by antenna, and position and the choosing of directivity of test shielded box internal antenna are the important steps ensureing wireless signal uniformity coefficient.The antenna arrangement scheme that the utility model embodiment is taked is as follows:
(1) antenna adopts omnidirectional antenna, and antenna signal uniformity coefficient when radial direction is equidistant is basically identical.
The effect of the antenna in test shielded box base station signal is converted to wireless signal to be radiated in test shielded box, test terminal set up with base station and communicates.And antenna is a key factor of signal uniformity coefficient in impact test shielded box.
Adopt omnidirectional antenna, when closely covering, test terminal is all in antenna main lobe coverage, and signal intensity can not be in the different angles of antenna and acute variation due to test terminal.
In the utility model embodiment, preferred major parameter is: standing-wave ratio (SWR): <=1.5; Gain: 12dB; Input impedance: the antenna of 50 Ω.
The frequency range of this antenna is 0.7 ~ 3GHz, can cover GSM900/1800, the frequency range of TDSA+F, TD-LTEBand39/40/41 and WLAN2.4G, frequency range wide coverage, practical.
(2) antenna and the contour design of terminal fixture layer, ensure that the radial distance of each terminal and antenna is basically identical.
In the design of test shielding box structure, signal uniformity coefficient is pay the utmost attention to factor all the time.In order to ensure the uniformity coefficient of each test terminal Received signal strength, the radial distance relative position of each test terminal on terminal fixture 201 and antenna 3 is consistent, simultaneously, in order to effectively make up single antenna covering problem of non-uniform in the axial direction, the utility model embodiment is every layer of corresponding antenna of terminal fixture preferably, the height of the terminal fixture layer that this antenna is corresponding with it is consistent, two antennas that adjacent two layers terminal fixture is corresponding are oppositely arranged, namely heteropleural is installed, and ensures that the test terminal Received signal strength of every layer is even.
In order to understand the technique scheme that the utility model embodiment provides further, illustrate below:
As shown in Figure 1, when support 2 has two-layer terminal fixture 201, corresponding every layer of terminal fixture 201 arranges an antenna, every root antenna is consistent with the height of corresponding terminal fixture 201, and two antennas corresponding to two-layer terminal fixture are oppositely arranged, namely antenna is arranged on the side of the sidewall of test shielded box, and another root antenna is arranged on opposite side corresponding thereto.
2. inhale selecting of ripple layer material
Wireless signal test shielded box in propagate, have when encountering sidewall multiple signal reflection, and small space internal reflection number of times increase the increase with reflected energy, the heterogeneity of local space signal intensity can be increased.Therefore, the utility model embodiment adopts the inside surface of the sidewall at test shielded box to install the method for inhaling ripple sponge additional, reduces the reflection of wireless signal.Wherein, the characteristic of this suction ripple sponge is: when inhale ripple sponge thickness d and operation wavelength λ reach 0.3 than d/ λ time, the reflectivity about-17dB that wireless signal is vertically injected and-25dB, namely inhales the absorptivity of ripple sponge to wireless signal and is greater than 92%.
In the utility model embodiment, the frequency range of the wireless signal that preferred antenna transmission goes out is 0.7-3GHz, wavelength X is between 10mm-42mm, in conjunction with the characteristic of inhaling ripple sponge, choose the suction ripple sponge that thickness is greater than 12.6mm, preferred thickness is the suction ripple sponge of 15mm, now effectively can sponge propagating into the wireless signal inhaled on ripple sponge, avoiding the energy inequality caused because of multiple reflections.
Further, as shown in Figure 2, in the utility model embodiment, described support 2 is extraction-type support 2, described framework 101 is provided with the first slide construction 103, described support 2 is provided with the second slide construction coordinated with described first slide construction 103, by the cooperation of described first slide construction 103 and the second slide construction, slide in the direction that described support 2 can be extended along described first slide construction 103 in described framework 101.When described support 2 is extracted out from test shielded box, test terminal can be placed on it.
Wherein, as shown in Figure 2, conveniently the picking and placeing of test terminal, described first slide construction 103 is preferably quiet slide rail, described support 2 is designed to integrative-structure with the chamber door 102 of described test shielded box, pulls out or inwardly pushes extraction or the propelling that chamber door 102 can realize support 2.
Further, as shown in Figures 1 to 3, in order to the stability that test terminal is placed on terminal fixture 201, the terminal fixture 201 of every one deck is provided with at least one for placing the groove 202 of test terminal.
Further, as shown in Figure 3, when support 2 designs, if adopt large-area metal material, the complicacy of the electromagnetic environment of test shielded box inner space will be increased, the multiple reflections of Signal transmissions can be caused equally, in addition, because blocking of support 2 pairs of antennas, also can the intensity of deamplification to a certain degree, therefore, when support 2 designs, while proof strength, do hollow out design as far as possible.Meanwhile, in order to reduce the interference of support 2 pairs of signal radiation, the material of support 2 is preferably nonmetallic materials.
Further, in order to ensure isolation inside and outside shielding cavity, make its inner and outside degree of screening for radio signal be not less than 65dB, the sidewall of whole test shielded box adopts aluminum alloy materials, has the penetration loss more than 70dB to radio wave propagation.
In the utility model embodiment, preferably two-layer terminal fixture structure, due to limited space in test shielded box of the prior art, adopts two-layer terminal fixture structure can make full use of the space tested in shielded box.In addition, two-layer terminal fixture coordinates this structure of two antennas, is more conducive to the homogeneity ensureing test terminal Received signal strength.
Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection domain of the present utility model.
Claims (10)
1. a test shielded box, is characterized in that, comprising:
Housing (1), described housing (1) comprising: framework (101), be wrapped in the outer sidewall of framework (101) and a chamber door (102);
Be flexibly connected with described framework (101), for the support (2) of fixing multiple test terminal, described support (2) comprises at least two-layer terminal fixture (201); And
Be arranged on the many antennas (3) on framework (101), wherein, every layer of corresponding antenna (3) of terminal fixture (201), every root antenna (3) be arranged in parallel with corresponding terminal fixture (201), and every root antenna (3) is consistent with the vertical height of corresponding terminal fixture (201) relative to described housing (1) bottom, two antennas (3) that adjacent two layers terminal fixture (201) is corresponding are fixed on described framework (101) in an opposing fashion.
2. test shielded box as claimed in claim 1, it is characterized in that, described framework (101) is provided with the first slide construction (103), described support (2) is provided with the second slide construction coordinated with described first slide construction (103), by the cooperation of described first slide construction (103) and the second slide construction, slide in the direction that described support (2) can be extended along described first slide construction (103) in described framework (101).
3. test shielded box as claimed in claim 2, it is characterized in that, described first slide construction (103) is quiet slide rail.
4. testing shielded box as claimed in claim 1, it is characterized in that, every layer of terminal fixture (201) being provided with at least one for placing the groove (202) of test terminal.
5. test shielded box as claimed in claim 1, it is characterized in that, the inside surface of described sidewall is provided with inhales ripple layer.
6. test shielded box as claimed in claim 5, it is characterized in that, the material of described suction ripple layer is for inhaling ripple sponge, and the material of described sidewall is aluminum alloy materials.
7. test shielded box as claimed in claim 1, it is characterized in that, described antenna (3) is omnidirectional antenna.
8. test shielded box as claimed in claim 1, it is characterized in that, the material of described support (2) is nonmetallic materials.
9. test shielded box as claimed in claim 1, it is characterized in that, the structure of described support (2) is engraved structure.
10. test shielded box as claimed in claim 1, it is characterized in that, described support (2) and described chamber door (102) are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520535389.XU CN204925185U (en) | 2015-07-22 | 2015-07-22 | Test shielded cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520535389.XU CN204925185U (en) | 2015-07-22 | 2015-07-22 | Test shielded cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204925185U true CN204925185U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520535389.XU Expired - Fee Related CN204925185U (en) | 2015-07-22 | 2015-07-22 | Test shielded cell |
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| Country | Link |
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| CN (1) | CN204925185U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607922A (en) * | 2017-10-17 | 2018-01-19 | 西安飞机工业（集团）有限责任公司 | A kind of method of testing and screening arrangement for aircraft weather radar radiance |
| CN108181490A (en) * | 2018-02-11 | 2018-06-19 | 珠海博杰电子股份有限公司 | Multi-functional shielded box |
| CN109035988A (en) * | 2018-10-05 | 2018-12-18 | 华北理工大学 | A kind of wireless communication major teaching experimentation shielded box |
| CN112327062A (en) * | 2020-10-19 | 2021-02-05 | 杭州永谐科技有限公司 | Multithread UE test shielded cell |
| CN112533463A (en) * | 2020-10-30 | 2021-03-19 | 杭州永谐科技有限公司 | 5G multithread UE test shielded cell |
-
2015
- 2015-07-22 CN CN201520535389.XU patent/CN204925185U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607922A (en) * | 2017-10-17 | 2018-01-19 | 西安飞机工业（集团）有限责任公司 | A kind of method of testing and screening arrangement for aircraft weather radar radiance |
| CN108181490A (en) * | 2018-02-11 | 2018-06-19 | 珠海博杰电子股份有限公司 | Multi-functional shielded box |
| CN108181490B (en) * | 2018-02-11 | 2024-01-19 | 珠海博杰电子股份有限公司 | Multifunctional shielding box |
| CN109035988A (en) * | 2018-10-05 | 2018-12-18 | 华北理工大学 | A kind of wireless communication major teaching experimentation shielded box |
| CN109035988B (en) * | 2018-10-05 | 2023-05-19 | 华北理工大学 | Isolation box for wireless communication professional teaching experiment |
| CN112327062A (en) * | 2020-10-19 | 2021-02-05 | 杭州永谐科技有限公司 | Multithread UE test shielded cell |
| CN112327062B (en) * | 2020-10-19 | 2023-07-14 | 杭州永谐科技有限公司 | Multi-flow UE test shielding box |
| CN112533463A (en) * | 2020-10-30 | 2021-03-19 | 杭州永谐科技有限公司 | 5G multithread UE test shielded cell |
| CN112533463B (en) * | 2020-10-30 | 2022-05-10 | 杭州永谐科技有限公司 | 5G multithread UE test shielded cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 |