CN109752599A - Up and down opening and closing shielded laboratory - Google Patents
Up and down opening and closing shielded laboratory Download PDFInfo
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- CN109752599A CN109752599A CN201711090506.6A CN201711090506A CN109752599A CN 109752599 A CN109752599 A CN 109752599A CN 201711090506 A CN201711090506 A CN 201711090506A CN 109752599 A CN109752599 A CN 109752599A
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- tool apron
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
A kind of shielding castle of open and close type up and down, comprising: there is the shielding connected structure that opposite can be moved up and down the upper housing (11) of opening and closing and the shield shell (1) of lower case (12), be located at the shield shell (1) opening and closing joint；The shielding connected structure includes: the tool apron (41) for being installed in the upper housing (11) bottom joint, the edge of a knife (42) for being installed in the lower case (12) top junction, reed (43)；The two sidewalls on the edge of a knife (42) top are the inclined-plane gradually closed up upwards, tool apron (41) has downward opening groove (411), its two sides cell wall is the inclined-plane gradually closed up upwards, the reed (43) is individually fixed in the two sides cell wall of the tool apron (41), outwardly protrudes in the middle part of the two sides reed (43) domed.The shielding castle good appearance of open and close type up and down of the invention, is not easy to accumulate sundries, and small in size, at low cost, the opening ways integrally moved up using upper housing facilitate operation, and shield effectiveness is good.
Description
Technical field
The present invention relates to a kind of laboratory equipment more particularly to a kind of shielding knots of the shielding castle for antenna measurement
The improvement of structure is mainly used for the component of the radio systems such as the small-sized electronic products antenna such as antenna for mobile phone, router, palm PC
Or system test.
Background technique
Currently, the electromagnetic shielding of shielding castle is to be obstructed or decayed by shielding area and extraneous electricity using shielding material
Magnetic energy is propagated.The action principle of electromagnetic shielding is to utilize reflection, absorption and guiding function of the shield to electromagnetic energy flow, with
Charge, electric current and the polarization phenomena inducted inside shielding construction surface and shield are closely related.Shielding is divided into electricity by its principle
Shielding (electrostatic screen and alternating electric field shielding), magnetic field shielding (low frequency magnetic field and high frequency magnetic field shielding) and electromagnetic-field-shielded
(shielding electromagnetic waves).Usually said electromagnetic shielding refers to latter, i.e., is shielded simultaneously to electric and magnetic fields.Pass through screen
The closure for covering shell forms the environment of an electromagnetic shielding, completely cuts off outfield electromagnetic wave, can make inside of shield casings electromagnetic signal
Measurement result is more accurate, thus the joint of shield shell closure when whether can be tightly engaged into it is critically important.
Its shield shell of traditional shielded anechoic chamber is usually all the opening ways using side enabling or covering type, is operated
Come very arduously, as shown in figure 11, the joint of shield shell is usually that an edge of a knife 91 is arranged in side, and tool apron is arranged in the other side
92, which is in two parallel 921 each fixed reeds 93 in inside of clamping plate.When shield shell closure, the edge of a knife 91 exists
Under external force between the two sides reed 93 of (such as hand push or mechanism push) insertion tool apron 92, two sides reed 93 because by
It to extruding, is compressed to both sides, after the edge of a knife 91 stops entering, reed 93 can clamp the edge of a knife 91 due to elastic reaction, it usually needs
The edge of a knife 91 could be inserted into or be pulled out to bigger power, or even needing to be aided with locking device could allow the edge of a knife 91 to pass through reed 93
Clamping opening position, if will increase the power of motor of switching mechanism using this traditional structure.
Summary of the invention
The technical problem to be solved in the present invention is that provide it is a kind of facilitate operation, be easy opening and closing and be able to maintain tool apron and the edge of a knife
It compresses, the shielding castle for the open and close type up and down that shield effectiveness is good.
The present invention solve above-mentioned technical problem the technical solution adopted is that, the shielding for manufacturing and designing a kind of open and close type up and down is real
Test room, comprising: shield shell is located at the intracorporal test equipment of the shielding case and its circuit, is located at shield shell opening and closing engagement
The shielding connected structure at place.
The shield shell includes: upper housing, lower case and the switching mechanism for connecting the upper housing and lower case；Institute
Oscilaltion campaign can be carried out relative to lower case under the drive of switching mechanism to open or close shield shell by stating upper housing.
The shielding connected structure includes: the tool apron for being installed in upper housing bottom joint, is installed in the lower casing
The edge of a knife, the reed of body top junction；The two sidewalls on the edge of a knife top are the inclined-plane gradually closed up upwards, and the tool apron has
Downward opening groove, the two sides cell wall of the groove are the inclined-plane gradually closed up upwards；The reed is individually fixed in the tool apron
Two sides cell wall, outwardly protrude in the middle part of the two sides reed domed.
When the upper housing moves down and closes shield shell, the tool apron is synchronized to move down and be fastened with the edge of a knife, is installed on the knife
On the inclined-plane of two sides reed indentation edge of a knife two sides on seat, reed, which is squeezed, generates deformation, due to the reply of reed material itself
Power makes it always tight against the edge of a knife, so that interface is in masked state always when remaining turned-off.
The edge of a knife is spliced by several segments, and the stitching portion of the adjacent segment edge of a knife is made into the shape of pin end and female connector respectively
Formula, the end face of the pin end and the shoulder of the box shape are mutually matched and the Mosaic face of the two is not in same plane
On.
Angle between the two sidewalls and edge of a knife cross-section center line on the edge of a knife top is 5 to 25 degree, the tool apron two
Angle between side channel wall and tool apron cross-section center line is 5 to 15 degree.
Conductive gasket is also gripped between the edge of a knife and lower case.
The switching mechanism includes: transmission mechanism and its power transmission member, connector and vertical guide；The connector
Driven and moved up and down by the power transmission member, the connector be fixedly connected on the side of the upper housing and with it is described vertical
Guide rail cooperation is slidably connected so that the connector can only be moved up and down along the vertical guide.
The power transmission member is two lead screws being separately positioned at left and right sides of the upper housing, it is accordingly described on
Shell is each side fixed with the connector driven by lead screw.
The transmission mechanism includes: motor, twin shaft output worm-gear speed reducer, is connected to twin shaft output worm gear
Two transmission shafts at left and right sides of worm decelerating machine, the angular speedup of precision being connect with the transmission shaft and power transmission member
Machine；The power of the motor passes to the twin shaft output worm-gear speed reducer, transmits using the transmission shaft of two sides
To the angular booster engine of precision, the angular booster engine of the precision transfers power to the power transmission member again, described in drive
Connector moves up or down.
The bottom of the shield shell is fixed in rack, which is equipped with slider roller.
Compared with the existing technology compared with the shielding castle of open and close type up and down of the invention has the advantages that
1. good appearance is not easy to accumulate sundries；
2. the opening ways integrally moved up using upper housing, facilitate operation；
3. this up and down under opening and closing mode, the structure cooperated using tool apron and edge of a knife inclined-plane, driving force when into tool apron
For gravity plus machine power, using the self-locking characteristic of the self weight of upper housing itself and lead screw, can both make both tool apron and the edge of a knife it
Between keep compress, have good shield effectiveness, and the edge of a knife be detached from when due to inclined-plane design feature, the edge of a knife can be mitigated significantly
Required power when being extracted from reed, power needed for reducing opening and closing motor；
Not in the same plane, 4. this is conducive to increase the path that external electromagnetic waves enter the Mosaic face of the adjacent segment edge of a knife, so that
Electromagnetic wave is just depleted in the path of entrance, it is ensured that the shield effectiveness of equipment；
5. the bottom of shield shell is equipped with slider roller, convenient, flexible transfer, it can conveniently be carried to office, laboratory, very
To office building or residential usage, the shielding test laboratory fixed without construction, small in size, multiple functional, cost drops significantly
It is low.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the shielding castle of the present invention or more open and close type；
Fig. 2 is the structural schematic diagram of the shielding castle of the present invention or more open and close type in the on state；
Fig. 3 is the structural schematic diagram of the shielding castle of the present invention or more open and close type in closed state；
Fig. 4 is the structural schematic diagram of the switching mechanism 13 and braced frame 5；
Fig. 5 is the structural schematic diagram of the connector 132 and 11 junction of power transmission member 131 and upper housing；
Fig. 6 is the structural schematic diagram of the connector 132；
Fig. 7 is the transmission mechanism of the switching mechanism 13 and its structural schematic diagram of power transmission member 131；
Fig. 8 is the schematic diagram of shielding connected structure of the present invention；
Fig. 9 is the attachment structure schematic diagram of the multistage edge of a knife 42；
Figure 10 is the schematic diagram of 42 stitching portion of the adjacent segment edge of a knife；
Figure 11 is the schematic diagram of tradition shielding connected structure.
Specific embodiment
It is described in further detail below in conjunction with most preferred embodiment shown in attached drawing.
As shown in Figure 1, the shielding castle of open and close type up and down of the invention specifically includes that shield shell 1, is located at the shielding
Test equipment and its circuit 2 in shell 1 and the shielding connected structure for being located at the shield shell 1 opening and closing joint.Wherein,
As shown in Figures 2 and 3, which includes: upper housing 11, lower case 12 and switching mechanism 13.Wherein, the lower casing
Body 12 is fixed part, and the upper housing 11 is moveable part, and the section of the two can be rectangle, circle or diamond shape etc., but
It is not limited to the above shape, is also possible to other irregular shapes.The switching mechanism 13 then connects the upper housing 11 and lower casing
Body 12, and lower upper housing 11 is driven to carry out oscilaltion campaign relative to lower case 12 to open or close shield shell 1.
When switching mechanism 13 drives upper housing 11 to move up, open state as shown in Figure 2, at this time, it is convenient to will be to
The product of test is put into or takes out；And when switching mechanism 13 drives upper housing 11 to move down in place, as shown in figure 3, upper housing 11
Just closed together with lower case 12, the shielding case body that upper-lower casing forms an entirety can in this way when carrying out radio frequency testing
With shielding case body external electromagnetic waves, interference of the outfield electromagnetic wave to box house test equipment is reduced, to obtain more accurately
Test data.
Chain drive, rack-and-pinion, hydraulic push rod, lead screw/screw drive, synchronous belt can be used in the switching mechanism 13
The common kinds of drive such as transmission drive the upper housing 11 to move up and down.Relative to traditional side enabling or the opening square of covering type
Formula, the shielding castle of open and close type up and down of the invention can allow entire shell to be opened, facilitate operation, and can reach similar product
Index performance belongs to pioneering.
As shown in fig. 1, fig. 2 and fig. 8, the shielding connected structure includes: tool apron 41, the edge of a knife 42 and reed 43.Wherein, institute
State that tool apron 41 is fixed at the joint of 11 bottom of upper housing, the edge of a knife 42 is then fixed at the lower case 12
The joint at top, and the position of tool apron 41 and the edge of a knife 42 is corresponding up and down.
The cross section on 42 top of the edge of a knife is in trapezoid, and two sidewalls 421 are and 45 angulation of edge of a knife cross-section center line
The inclined-plane of α is spent, which is 5 degree to 25 degree.The cross section of the tool apron 41 is substantially inverted U shape, and has downward opening groove 411,
The two sides cell wall 412 of the groove 411 is the inclined-plane that α 1 is at an angle of with tool apron cross-section center line 45, which is 5 degree to 15 degree.On
The numerical value for stating α and α 1 can be equal or unequal, and specific value is inserted into 43 depth of reed by the edge of a knife 42 and is determined, the present embodiment
Middle α is 20 degree, and α 1 is 10 degree.The reed 43 is individually fixed on the two sides cell wall 412 of the tool apron 41, the two sides reed 43
Middle part outwardly protrudes domed.
As shown in figure 8, the bolt 17 of the edge of a knife 42 is fixed in lower case 12, and between the edge of a knife 42 and lower case 12
Gap is also gripped with conductive gasket 6, caused by being pressurized unevenly when can compensate the error generated when manufacture or bolt tightening
Deform gap.
When the upper housing 11 is moved down and is closed in place to shield shell 1, the tool apron 41 is synchronized to move down and be detained with the edge of a knife 42
It closes, the two sides reed 43 on the tool apron 41 closely presses on the inclined-plane 421 of 42 two sides of the edge of a knife, and reed 43 is by compressive deformation, tightly
Tightly bite the edge of a knife 42.Simultaneously because the self weight of upper housing 11 and the active force of switching mechanism 13, tool apron 41 can keep compressing the edge of a knife
42 state.And upper housing 11 when being turned on due to the design feature that inclined-plane fastens, can be with when so that the edge of a knife 42 being detached from tool apron 41
Mitigate power required when the edge of a knife 42 is extracted from reed 43 significantly, reduces the power of opening and closing motor.When the frequency of interference electromagnetic field
When higher, external electromagnetic wave is supported in the vortex generated using the metal material (reed and conductive gasket) of low-resistivity, formation
Disappear effect, to achieve the effect that shielding.
The tool apron 41 and the edge of a knife 42 will be arranged along the periphery of upper housing 11 and lower case 12, according to upper housing 11 and lower casing
The different shape of body 12, the shape that the tool apron 41 and the edge of a knife 42 surround are also different.In the present embodiment, the upper housing 11 is under
Shell 12 is rectangular, therefore tool apron 41 and the edge of a knife 42 also accordingly surround quadrangle.As shown in Figure 9 and Figure 10, the edge of a knife 42 by
Four sections are spliced, and the stitching portion of the adjacent segment edge of a knife 42 is made into the form of pin end 421 and female connector 422, the public access respectively
The end surface shape of first 421 end face and the female connector 422 be mutually matched and the Mosaic face of the two not in the same plane, the two
It is stitched together with connecting pin 44.This structure is conducive to increase the path that external electromagnetic waves enter, so that electromagnetic wave is entering
Path in be just depleted, it is ensured that the shield effectiveness of equipment.
As shown in Figure 1 and Figure 4, the switching mechanism 13 includes: transmission mechanism and its power transmission member 131, connector
132 and vertical guide 133.Wherein, the connector 132 is driven by the power transmission member 131 and is moved up and down, the connection
Part 132 is fixedly connected on the side of the upper housing 11 with bolt 16 again simultaneously, can effectively reduce the place headroom that installation needs
Highly, it is more convenient installation and maintenance.
As shown in Figure 1, the transmission mechanism may be provided at the bottom position of lower case 12 comprising: motor 134, twin shaft
Output worm-gear speed reducer 135, two transmissions for being connected to 135 left and right sides of twin shaft output worm-gear speed reducer
Axis 136, the angular booster engine 137 of precision being connect positioned at the left and right sides with the transmission shaft 136 and power transmission member 131.Institute
The power for stating motor 134 passes to the twin shaft output worm-gear speed reducer 135, using the transmission shaft 136 of two sides
It is transferred to the angular booster engine 137 of the precision, the angular booster engine 137 of the precision transfers power to the power transmission member again
131, thus drive the connector 132 to move up or down, and then upper housing 11 is driven accordingly to move up or down.
In the present embodiment, the power transmission member 131 is two for being separately positioned on 11 left and right sides of upper housing
Lead screw, accordingly the upper housing 11 is each side fixed with the connector 132 driven by the lead screw 131.
The present invention drives bilateral lead screw 131 to rise or fall with follower link 132 and upper housing 11 simultaneously using a motor, it is ensured that
The synchronization of two sides lifting, is not in the phenomenon that blocking.And screw structure cooperates turbine worm reducer, has using worm and gear
There is a self-locking function, when unlatching, falling accident never occurs for upper housing shielding case, has greatly ensured the safety of operator.
It can guarantee that gate remains tight closure when simultaneously closing off, advantageously ensure that test equipment reaches performance indicator.
The present invention cooperates booster engine 137 to have following three reasons using worm-gear speed reducer 135:
The first, system support direct current generator, and conventional DC brushless motor speed is high, generally all in 3000RPM, uses Hardened gear face
Noise can very greatly (60dB) under high speed input condition for deceleration mechanism.The input of motor can be turned down by worm-gear speed reducer
Revolving speed, then the final revolving speed that revolving speed reaches needs is amplified by booster engine, it can be noise control in ideal range.
The second, so that turbine and worm is had more superior self-locking property by the worm and gear reduction ratio of increase, prevent screw rod
It takes a turn for the worse in the case where gravity.
Third utilizes the self-locking property of Article 2, can remove the brake of motor, real using the input shaft of worm and gear
Function that is existing manually opened and closing.
As shown in fig. 6, the connector 132 include: drive block 1321, horizontal cross plate 1322, vertical traversing plates 1323 and
Slide construction 1324.The drive block 1321 is equipped with and internal screw thread and is threadedly coupled with the lead screw 131, when 131 forward direction of lead screw or
When rotating backward, the drive block 1321 can be driven to move up or move down.The drive block 1321 is bolted to connection in level
The middle part of transverse slat 1322, the vertical traversing plates 1323 are then fixed on the inside of (such as welding) horizontal cross plate 1322.Such as Fig. 5 institute
Show, 11 side wall of upper housing and the 1323 position corresponding position of vertical traversing plates are fixed with connecting plate 15, the vertical traversing plates 1323
It links together with the bolt 16 of connecting plate 15.The slide construction 1324 is fixedly arranged on horizontal cross plate 1322 and vertical traversing plates respectively
1323 rear and front ends, as shown in figure 4, the slide construction 1324 is slidably connected with the vertical guide 133 cooperation, so that connector
132 can only move up and down along the vertical guide 133, which can be used common guiding form, such as: round straight line
Sliding rail, line slide rail, idler wheel raceway device etc., and the quantity of guide rail is unlimited.Above-mentioned horizontal cross plate 1322 and vertical traversing plates 1323
Setting can reinforce the integral strength of connector 132.
As shown in figure 4, the left and right sides of the shield shell 1 is respectively provided with the support frame for being fixed on the lower case 12
Frame 5, the braced frame 5 are mainly horizontal by two or more of the vertical connector 51 in front and back two and this two vertical connectors 51 of connection
It is constituted to connector 52.The lead screw 131 and connector 132 are located in the braced frame 5, the front of every side braced frame 5 and
The vertical guide 133, the slide construction with 132 rear and front end of connector are respectively installed at the vertical connector 51 in rear portion
1324 are slidably matched.
In addition, the bottom of the shield shell 1 is fixed in rack 6, which is equipped with several slider rollers 3,
Being convenient to for be moved in entire laboratory in this way needs place to be tested, such as office, laboratory, even commonly writes
Building, premises use, very flexibly and easily.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of shielding castle of open and close type up and down, comprising: shield shell (1), the test being located in the shield shell (1) are set
Standby and its circuit (2), the shielding connected structure for being located at the shield shell (1) opening and closing joint；It is characterized by:
The shield shell (1) includes: upper housing (11), lower case (12) and connects the upper housing (11) and lower case
(12) switching mechanism (13)；The upper housing (11) can carry out under the drive of switching mechanism (13) relative to lower case (12)
Oscilaltion campaign is to open or close shield shell (1)；
The shielding connected structure include: the tool apron (41) for being installed in the upper housing (11) bottom joint, be installed in it is described
The edge of a knife (42), reed (43) of lower case (12) top junction；The two sidewalls on the edge of a knife (42) top are upwards gradually simultaneously
The inclined-plane held together, the tool apron (41) have downward opening groove (411), and the two sides cell wall of the groove (411) is upwards gradually
The inclined-plane closed up；The reed (43) is individually fixed in the two sides cell wall of the tool apron (41), the middle part of the two sides reed (43) to
Outer protrusion is domed；
When the upper housing (11) moves down and closes shield shell (1), the tool apron (41) synchronizes to move down and fasten with the edge of a knife (42),
It is installed on the inclined-plane of two sides reed (43) the indentation edge of a knife (42) two sides on the tool apron (41), reed (43), which is squeezed, generates shape
Become, since the restoring force of reed material itself makes it always tight against the edge of a knife (42), so that interface is in always when remaining turned-off
Masked state.
2. the shielding castle of open and close type up and down according to claim 1, it is characterised in that: the edge of a knife (42) is by several
Section is spliced, and the stitching portion of the adjacent segment edge of a knife (42) is made into the form of pin end (421) and female connector (422) respectively, described
The end face of pin end (421) and the end surface shape of the female connector (422) are mutually matched and the Mosaic face of the two is not same flat
On face.
3. the shielding castle of open and close type up and down according to claim 2, it is characterised in that: the edge of a knife (42) top
Angle between two sidewalls and edge of a knife cross-section center line is 5 to 25 degree, tool apron (41) the two sides cell wall and tool apron cross section
Angle between center line is 5 to 15 degree.
4. the shielding castle of open and close type up and down according to claim 2, it is characterised in that: the edge of a knife (42) and lower casing
Conductive gasket (6) are also gripped between body (12).
5. the shielding castle of open and close type up and down according to any one of claims 1 to 4, which is characterized in that the opening and closing
Mechanism (13) includes: transmission mechanism and its power transmission member (131), connector (132) and vertical guide (133)；The company
Fitting (132) is driven by the power transmission member (131) and is moved up and down, which is fixedly connected on the upper casing
The side of body (11) is simultaneously slidably connected with the vertical guide (133) cooperation so that the connector (132) can only vertically be led along this
Rail (133) moves up and down.
6. the shielding castle of open and close type up and down according to claim 5, it is characterised in that: the power transmission member
(131) to be separately positioned on two lead screws at left and right sides of the upper housing (11), the accordingly left and right of the upper housing (11)
Two sides are respectively fixed with the connector (132) driven by lead screw.
7. the shielding castle of open and close type up and down according to claim 5, which is characterized in that the transmission mechanism includes:
Motor (134), is connected to twin shaft output worm-gear speed reducer (135) at twin shaft output worm-gear speed reducer (135)
Two transmission shafts (136) of the left and right sides, the precision connecting with the transmission shaft (136) and power transmission member (131) are angular
Booster engine (137)；The power of the motor (134) passes to twin shaft output worm-gear speed reducer (135), using two
The transmission shaft (136) of side is transferred to the angular booster engine of precision (137), and the angular booster engine of the precision (137) will move again
Power is transmitted to the power transmission member (131), and the connector (132) is driven to move up or down.
8. the shielding castle of open and close type up and down according to any one of claims 1 to 4, it is characterised in that: the shielding
The bottom of shell (1) is fixed on rack (6), which is equipped with slider roller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711090506.6A CN109752599A (en) | 2017-11-08 | 2017-11-08 | Up and down opening and closing shielded laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711090506.6A CN109752599A (en) | 2017-11-08 | 2017-11-08 | Up and down opening and closing shielded laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109752599A true CN109752599A (en) | 2019-05-14 |
Family
ID=66401499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711090506.6A Pending CN109752599A (en) | 2017-11-08 | 2017-11-08 | Up and down opening and closing shielded laboratory |
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| Country | Link |
|---|---|
| CN (1) | CN109752599A (en) |
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2017
- 2017-11-08 CN CN201711090506.6A patent/CN109752599A/en active Pending
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| CN202886423U (en) * | 2012-10-25 | 2013-04-17 | 石家庄拓达科贸有限公司 | Electromagnetic shielding box |
| CN204188671U (en) * | 2014-10-30 | 2015-03-04 | 深圳市佳晨科技有限公司 | A kind of double flute pressing shielded box |
| CN207396614U (en) * | 2017-11-08 | 2018-05-22 | 伟睿科技（深圳）有限公司 | The shielding castle of upper and lower open and close type |
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Application publication date: 20190514 |