CN204188670U - A kind of hand shielded box - Google Patents
A kind of hand shielded box Download PDFInfo
- Publication number
- CN204188670U CN204188670U CN201420644396.9U CN201420644396U CN204188670U CN 204188670 U CN204188670 U CN 204188670U CN 201420644396 U CN201420644396 U CN 201420644396U CN 204188670 U CN204188670 U CN 204188670U
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- shielded box
- upper cover
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- shielding
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Abstract
The utility model discloses a kind of hand shielded box, comprise casing, upper cover, be arranged on the hand buckle device between described casing and upper cover and be inclined at the air spring of described shielded box both sides; For pivot joint connects between described casing and upper cover, upper cover can be rotated around of a casing side and realize opening or closing of shielded box; Described casing and upper cover fit on cover and face is provided with one along its length shields groove, be provided with a shielding step between the lateral wall of described shielding groove and the lateral wall of described casing, described upper cover and casing fit on cover and face be provided with along its length the protruding and external shield projection matched with described shielding step of inner screening of overlapping with described shielding recess; Shielded box described in the utility model covers face in inclination and adopts convex-concave structure to realize fitting tightly between casing and upper cover, effectively hinders electromagnetic wave propagation radiation, forms a shielding environment in shielded box.
Description
Technical field
The utility model relates to and a kind ofly can effectively ensure casing composition surface close contact thus provide shielding environment and the shielded box of manual folding for the test of wireless electronic product
Background technology
Electromagnetic interference (EMI) (EMI) develops with electronics, electrical technology and occur, every electronics, technical field of electricity all can have electromagnetic interference (EMI).The electromagnetic interference (EMI) that electronics in a large amount of use, electrical system or equipment etc. produce can affect health, also can have an impact to the safety and reliability etc. that electronics, electrical system or equipment are mutual and endanger simultaneously.Severe electromagnetic environment often makes electronics, electrical system or equipment cisco unity malfunction, even causes fault and accident, or affects data when electronic product is tested.
But along with wireless communications products is for the raising of the accuracy requirement of Signal transmissions, electromagnetism interference performance requirement for product is more and more higher, current mobile phone, PDA and associated host circuit board complete the stage in exploitation, all need the test carrying out relevant electromagnetic property, and there is extremely complicated and serious electromagnetic interference (EMI) in general open environment, the degree of accuracy of easily impact test.Therefore, above-mentioned most test all must implement test, to reaching preferably testing precision in the environment of low EMI (or even without Electromagnetic Interference).
The common device of low EMI (without electromagnetic interference (EMI)) test environment that provides is the shielded box of a tool signal shielding function, shielded box conventional at present, general employing is planar pressing mode, and be generally individual layer pressing mode, single layer structure be difficult to by cylinder or manual mode tight to pressing, according to the circulation way of radio magnetic wave, the penetrability of rectilinear propagation is very strong, if be single layer planar structure pressing, as long as have a bit, non-pressing is tight, electromagnetic wave will directly be penetrated in case, cannot form one and effectively shield environment.
Utility model content
The purpose of this utility model is to propose a kind of manual folding for above-mentioned technical matters, utilizes concavo-convex pressing structure substitutive patterns pressing mode to provide the hand shielded box of an effective electromagnetic screen environment.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of hand shielded box, comprises casing, upper cover, is arranged on the hand buckle device between described casing and upper cover and is inclined at the air spring of described shielded box both sides;
For pivot joint connects between described casing and upper cover, upper cover can be rotated around of a casing side and realize opening or closing of shielded box;
Described casing and upper cover are articulated and connected at the two ends of described air spring respectively, and described air spring is used for shielded box and opens with the buffering in closing course, braking and support the opening that upper cover keeps shielded box;
Described casing and upper cover fit on cover and face is provided with one along its length shields groove, be provided with a shielding step between the lateral wall of described shielding groove and the lateral wall of described casing, described upper cover and casing fit on cover and face be provided with along its length the protruding and external shield projection matched with described shielding step of inner screening of overlapping with described shielding recess;
The width in the gap between the protruding and external shield of described inner screening is protruding is greater than the thickness of the lateral wall of described shielding groove; The height of described external shield projection is greater than or equal to the height of described shielding step;
Described hand buckle device comprises the buckling base being arranged on described casing front end, the holder being arranged on described upper cover and described buckling base opposite position and is movably arranged on the latch hook of described holder being locked shielded box for hooking tight described buckling base, after described casing and upper cover cover under external force, the latch hook of described upper cover rotates the buckling base locking of catching on casing, keeps the closure state of shielded box; When needing the shielded box of open closed state, rotating the latch hook of upper cover and latch hook is threaded off from the buckling base of casing, upper cover rises under the effect of air spring or external force, and shielded box is opened.
In the utility model, flexible conducting material layer has been filled with in described shielding groove, described shield protrusion parcel is provided with flexible conducting material layer, compress described flexible conducting material layer by described shielding groove and inner screening projection and ensure that covering between face between described casing and upper cover fits tightly, effectively improve the conduction adaptation between described casing and upper cover.
In the utility model, the setting angle of described air spring is 25 ° ~ 60 °, preferably 30 ° or 45 °, makes air spring described in shielded box moving process there will not be catching phenomenon, improves the aesthetic degree of chest simultaneously.
In the utility model, described hand buckle device also comprises the long handle be connected on described latch hook, and handled easily personnel carry out the switching action of shielded box.
In the utility model, between described holder and latch hook, be also provided with coil tension spring, make described latch hook can hook tight described buckling base.
In the utility model, described shielded box is also provided with fixture, and described fixture comprises the support plate platform for loading tested electronic product.
In the utility model, the internal face of described casing and upper cover is equipped with the absorbing material layer for strengthening shield effectiveness.
In the utility model, described shielded box is also provided with the pilot lamp being used to indicate test result, and described pilot lamp is connected with proving installation.
In the utility model, described casing is provided with the data communication interfaces such as the RF radio frequency interface for connecting outer testing system, DB9, DB25, USB, RJ45 filter connector.
In the utility model, the both sides that air spring installed by described casing are respectively arranged with handle, facilitate mobile shielded box.
Shielded box described in the utility model covers face in inclination and adopts convex-concave structure to realize fitting tightly between casing and upper cover, from planar structure, the faying face design of convex-concave structure is contacted by male and female face forming station terrace on faying face, is equivalent to define twice shielding to electromagnetic wave on faying face; Again because the penetrability of rectilinear propagation is very strong, if run into partition wall on route of transmission, electromagnetic wave cannot pass, convex-concave structure of the present utility model is equivalent to the partition wall adding a convex-concave structure on faying face, be equivalent to the right angle of two 90 degree, effectively hinder electromagnetic wave propagation radiation, thus realize electromagnetic effective shielding, in shielded box, form a shielding environment.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the shielded box closure state in the utility model one embodiment;
Fig. 2 is the backsight structural representation of the shielded box closure state in the utility model one embodiment;
Fig. 3 is I place's structure for amplifying schematic diagram in Fig. 2;
Fig. 4 is II place's structure for amplifying schematic diagram in Fig. 2;
Fig. 5 is the broken section structural representation covering face under the shielded box in the utility model one embodiment;
Fig. 6 be shielded box in the utility model one embodiment on cover the broken section structural representation in face;
Fig. 7 is the broken section structural representation in the face that covers of shielded box in the utility model one embodiment;
Fig. 8 is the one-piece construction schematic diagram of the hand buckle device in the utility model one embodiment;
Fig. 9 is the sectional structure schematic diagram of Fig. 8.
Embodiment
In order to be illustrated more clearly in the technical solution of the utility model, below in conjunction with drawings and Examples, the technical solution of the utility model is further elaborated, apparently, the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other embodiment can also be obtained according to these embodiments.
With reference to Fig. 1, a kind of hand shielded box, realize opening of shielded box by operating personnel's manual operations and close, comprising casing 2, upper cover 1, be arranged on the hand buckle device 4 between casing 2 and upper cover 1 and be inclined at two air springs 3 between casing 2 and upper cover 1;
With reference to Fig. 2, a side between casing 2 and upper cover 1 is rotatably linked together (in an embodiment to be provided with the side of hinge for rear side) by hinge (not shown), makes upper cover 1 to be realized opening of shielded box by the side rotation of hinge around casing 2 or to be closed;
Casing 2 and upper cover 1 are articulated and connected respectively and are arranged on the two ends of air spring 3, two ends of air spring 3 rotate to an angle relative to casing 2 or upper cover 1 respectively, shielded box by upper cover 1 around hinge rotate and near or away from casing 2 so realize between casing 2 and upper cover 1 opening and closed, after shielded box is opened, air spring 3 can support upper cover 1 and stay open state, conveniently carries out the test operations such as charging discharging.Preferably, the setting angle of air spring 3 on shielded box is 25 ° ~ 60 °, preferably 30 ° or 45 °, makes air spring 3 in shielded box moving process there will not be catching phenomenon, improves the aesthetic degree of chest simultaneously.
Fit down to cover with reference to Fig. 3 and Fig. 5 casing 2 and upper cover 1 and face has been disposed adjacent one along its length shields groove 22, a shielding step 24 is provided with between the lateral wall 23 of shielding groove and the lateral wall of casing 2, the lateral wall 23 of shielding groove is highly greater than madial wall 21 height of shielding groove, and shielding 24, step is higher than the bottom surface of shielding groove 22; With reference to Fig. 4 and Fig. 6, upper cover 1 and casing 2 fit on cover face is disposed adjacent along its length and to shield inner screening protruding 13 that groove 22 matches and one and the external shield projection 11 shielding step 24 and match with one, the height of external shield projection 11 is greater than the height of inner screening projection 13.
With reference to Fig. 7, the height of external shield projection 1121 is equal to, or greater than the height of shielding step 24, making between external shield protruding 11 and shielding step 24 can close contact, and after shielded box covers, external shield projection 11 outer is avoided mutually concordant with the outside wall surface of casing 2.Gap width between inner screening protruding 13 and external shield projection 11 is greater than the thickness of the lateral wall 23 shielding groove, and the thickness of inner screening projection 13 is equal to or less than the width of shielding groove 22.
With reference to Fig. 2, Fig. 8, hand buckle device 4 comprises the buckling base 41 being arranged on casing 2 front end, the holder 42 being arranged on upper cover 1 and buckling base 41 opposite position and is movably arranged on the latch hook 43 of holder 42 being locked shielded box for hooking tight buckling base 41; Concrete, with reference to Fig. 9, buckling base 41 is comprised and to be locked the pedestal 41a on front side of the casing 2 and fastening rod 41b that is located in pedestal 41a by bolt etc., concrete, pedestal 41a is provided with a groove towards upper cover 1, fastening rod 41b is suspended in pedestal 41a through pedestal 41a two side; Holder 42 is provided with one towards pedestal 41a and the groove corresponding with pedestal 41a upper groove, latch hook 43 is rotatably installed on holder 42 by rotating shaft 42a, rotate latch hook 43 can hook the fastening rod 41b of tight buckling base 41 or latch hook 43 is unlocked from fastening rod 41b, with reference to Fig. 9, coil tension spring 45 is also provided with between holder 42 and latch hook 43, make latch hook 43 can hook tight fastening rod 41b can not loosen voluntarily, ensure the reliability that shielded box fastens.Preferably, carry out locking or the unblock of shielded box for convenience of operator buckle device 4, latch hook 43 add a long handle 44, by long handle 44 rotate latch hook 43 carry out the locking of shielded box or convenient for unlocking laborsaving, increase work efficiency.
After casing 2 and upper cover 1 cover under external force, the latch hook 43 of upper cover 1 rotate catch on casing 2 buckling base 41 in fastening rod 41b locking, keep the closure state of shielded box; When needing the shielded box of open closed state, rotating the latch hook 43 of upper cover 1 and latch hook 43 is threaded off from the buckling base 41 of casing 2, upper cover 1 rises under the effect of air spring 3 or external force, and shielded box is opened, and stays open state under the support of air spring 3.
The internal face of casing 2 and upper cover 1 is equipped with the absorbing material layer (not shown) for strengthening shield effectiveness.Shielded box is also provided with the pilot lamp (not shown) being used to indicate test result, and pilot lamp is connected with proving installation, can be shown the result of the test that current shielded box carries out by pilot lamp easily.
Because shielded box is just for the test carried out in shielded box provides an electromagnetic screen environment, therefore need when test from external world's access test macro.For this reason, with reference to Fig. 2, casing 2 rear wall is provided with the data communication interface 5 such as RF radio frequency interface, DB9, DB25, USB, RJ45 filter connector for connecting outer testing system.The kind of data communication interface 5 and quantity can adjust according to concrete test event, do not enumerate here or limit.
In one embodiment, with reference to Fig. 7, shielded box generally adopts metal material manufacture, casing covers face for 2 times and upper cover 1 covers between face as steel to steel contacts, due to machining precision, the factors such as damage of colliding with in use procedure be difficult to ensure on cover face and under cover fitting tightly between face, very large impact is caused on the shield effectiveness of shielded box.For this reason, gap 12 between inner screening protruding 13 and external shield projection 11 and shield in groove 22 and be filled with flexible conducting material layer 6, when shielded box covers, inner screening protruding 13 compresses the flexible conducting material layer 6 in shielding groove 22, the lateral wall 23 of shielding groove compresses flexible conducting material layer 6 in the gap 12 between inner screening protruding 13 and external shield projection 11 to ensure that covering between face between casing 2 and upper cover 1 fits tightly, and effectively improves the conduction adaptation between casing 2 and upper cover 1.Preferably, this flexible conducting material selects conductive fabric.
When shielded box needs closed test, the upper cover 1 of shielded box to be rotated down around casing 2 by hinge and to cover on casing 2 and to keep tight closure state by hand buckle device 4 under the effect of external force, forms one effectively shield environment in shielded box inside; After shielded box completes test, hand buckle device 4 is opened, and the upper cover 1 of shielded box is rotated up away from casing 2 around casing 2 by hinge under the effect of external force or air spring 3, opens shielded box and takes out tested electronic product.After shielded box is opened, air spring 3 can support upper cover 1 and stay open state, conveniently operates in shielded box
In one embodiment, shielded box can be used alone and fixture also can be coordinated to use.When shielded box coordinates fixture to use, concrete, shielded box is provided with fixture (not shown), fixture comprises the support plate platform for loading tested electronic product, tested electronic product to be loaded on support plate platform and by the data communication interfaces 5 such as DB9, DB25, USB, RJ45 filter connector with test macro the shading ring be connected in shielded box test within the border.
In one embodiment, the main body due to shielded box generally adopts metal material to make, and weight is comparatively large, and for convenience of the carrying of shielded box, the both sides that air spring 3 installed by casing 2 are respectively arranged with handle (not shown), facilitate mobile shielded box.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a hand shielded box, is characterized in that: comprise casing (2), upper cover (1), be arranged on the hand buckle device (4) between described casing (2) and upper cover (1) and be inclined at the air spring (3) of described shielded box both sides;
For pivot joint connects between described casing (2) and upper cover (1); Described casing (2) and upper cover (1) are articulated and connected at the two ends of described air spring (3) respectively;
Upper cover (1) the conjunction face that described casing (2) and upper cover (1) fit is provided with one along its length and shields groove (22), be provided with a shielding step (24) between the lateral wall (23) of described shielding groove and the lateral wall of described casing (2), described upper cover (1) and casing (2) fit on cover on face and be provided with an inner screening projection (13) matched with described shielding groove (22) and an external shield projection (11) matched with described shielding step (24) along its length;
Described hand buckle device (4) comprises the buckling base (41) being arranged on described casing (2) front end, the holder (42) being arranged on described upper cover (1) and described buckling base (41) opposite position and is movably arranged on the latch hook (43) of described holder (42) being locked shielded box for hooking tight described buckling base (41).
2. a kind of hand shielded box as claimed in claim 1, is characterized in that: be filled with flexible conducting material layer (6) in described shielding groove (22).
3. a kind of hand shielded box as claimed in claim 1, is characterized in that: the width in the gap (12) between described inner screening projection (13) and external shield projection (11) is greater than the thickness of the lateral wall (23) of described shielding groove; The height of described external shield projection (11) is greater than or equal to the height of described shielding step (24).
4. a kind of hand shielded box as claimed in claim 1, is characterized in that: the setting angle of described air spring (3) is 25 ° ~ 60 °.
5. a kind of hand shielded box as claimed in claim 1, is characterized in that: described hand buckle device (4) also comprises the long handle (44) be connected on described latch hook (43).
6. a kind of hand shielded box as claimed in claim 1, is characterized in that: be also provided with the coil tension spring (45) for making described latch hook (43) can hook tight described buckling base (41) between described holder (42) and latch hook (43).
7. a kind of hand shielded box as claimed in claim 1, it is characterized in that: described shielded box is also provided with the pilot lamp being used to indicate test result, described pilot lamp is connected with proving installation.
8. a kind of hand shielded box as claimed in claim 1, is characterized in that: described shielded box is also provided with fixture, and described fixture comprises the support plate platform for loading tested electronic product.
9. a kind of hand shielded box as claimed in claim 1, is characterized in that: the internal face of described casing (2) and upper cover (1) is equipped with the absorbing material layer for strengthening shield effectiveness.
10. a kind of hand shielded box as claimed in claim 1, is characterized in that: described casing (2) is provided with the data communication interface (5) for connecting outer testing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644396.9U CN204188670U (en) | 2014-10-30 | 2014-10-30 | A kind of hand shielded box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644396.9U CN204188670U (en) | 2014-10-30 | 2014-10-30 | A kind of hand shielded box |
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| Publication Number | Publication Date |
|---|---|
| CN204188670U true CN204188670U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420644396.9U Active CN204188670U (en) | 2014-10-30 | 2014-10-30 | A kind of hand shielded box |
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| CN (1) | CN204188670U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964255A (en) * | 2015-07-28 | 2015-10-07 | 江苏达伦电子股份有限公司 | Magnetically-fixed variable-angle lamp |
| CN105977849A (en) * | 2016-07-09 | 2016-09-28 | 国网山东省电力公司潍坊供电公司 | Insulating protective cover of isolating switch |
| CN109121377A (en) * | 2018-10-10 | 2019-01-01 | 中国工程物理研究院电子工程研究所 | Electronic equipment |
| CN109413971A (en) * | 2017-08-15 | 2019-03-01 | 深圳富泰宏精密工业有限公司 | Shielded box and rf attenuation control method |
-
2014
- 2014-10-30 CN CN201420644396.9U patent/CN204188670U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964255A (en) * | 2015-07-28 | 2015-10-07 | 江苏达伦电子股份有限公司 | Magnetically-fixed variable-angle lamp |
| CN105977849A (en) * | 2016-07-09 | 2016-09-28 | 国网山东省电力公司潍坊供电公司 | Insulating protective cover of isolating switch |
| CN109413971A (en) * | 2017-08-15 | 2019-03-01 | 深圳富泰宏精密工业有限公司 | Shielded box and rf attenuation control method |
| CN109121377A (en) * | 2018-10-10 | 2019-01-01 | 中国工程物理研究院电子工程研究所 | Electronic equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |