CN110062572A - One kind is whole to open whole pass formula magnetic shielding device detachable cap - Google Patents
One kind is whole to open whole pass formula magnetic shielding device detachable cap Download PDFInfo
- Publication number
- CN110062572A CN110062572A CN201910464456.6A CN201910464456A CN110062572A CN 110062572 A CN110062572 A CN 110062572A CN 201910464456 A CN201910464456 A CN 201910464456A CN 110062572 A CN110062572 A CN 110062572A
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- Prior art keywords
- cover
- detachable cap
- magnetic
- soft magnetism
- whole
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0075—Magnetic shielding materials
Abstract
The present invention, which discloses, a kind of whole opens whole pass formula magnetic shielding device detachable cap, soft magnetism cover and insulating layer including interleaved, the outer layer of detachable cap is no magnetic cover, no magnetic cover, soft magnetism cover and insulating layer are connected as one by fixedly connected part, adjustable connection board is across no magnetic cover plate face and stretches out outside without magnetic cover, extension end connects packaged type detachable cap trailer, and detachable cap can translate in limited range relative to adjustable connection board.Magnetic shielding device detachable cap structural strength of the invention is high, can use for a long time, fatigue deformation will not occur.Lath is equipped with movable connection structure, can according to actual needs, and vibration detachable cap, is aligned detachable cap with magnetic shielding cylinder center up and down, and realization entirety is uncapped or the function of whole buckle closure, alleviates the labor intensity of operator, improves work efficiency.
Description
Technical field
The invention belongs to magnetic shielding device technical fields, and in particular to one kind is whole to open whole pass formula magnetic shielding device detachable cap.
Background technique
Modern industrial technology is fast-developing, and miscellaneous electronic product comes into being, and digitlization and height band electronic are set
The standby electromagnetic wave that can also radiate a large amount of different wave lengths to space at work, electromagnetic radiation pollution have become the survey of high-precision low-intensity magnetic field
The major obstacle of amount.Atom the time frequency system, Magnetic Sensor calibration, inertia gyroscope, optical fibre gyro, laser top are mainly applied in magnetic screen
Spiral shell and precision instrumentation etc..The effect of magnetic shielding device is to fill in earth's magnetic field and the shielding of environment stray magnetic field in magnetic screen
The outside set provides zero magnetic field space, with the instrument inside guarantee not by the interference of external magnetic field.
In practical projects, used material electromagnetic-field-shielded to different frequency sections and measure are different.Low frequency electromagnetic
Shielding be it is more scabrous, it is general mainly to carry out magnetic screen using high permeability materials.It is anti-when outfield strength is higher
Magnetic conductivity declines when only material magnetization is saturated, and in structure design, can increase the thickness of material, or use multilayer screen, and need
The shielding to electric field is considered simultaneously.Shielding in of magnetostatic field material generally uses hiperloy, structure design and processing technology pair
The influential effect of magnetic screen is very big.Therefore, in magnetic shielding device production, need according to the intensity of outer field source and shielding requirements into
Row reasonable material.After material is selected, optimal structure design and reasonable processing technology are the key that reach high shield effectiveness.When
After the volume and material of shielding cavity determine, the thickness of material is bigger, and magnetic screening coefficient is higher, in practical projects can not nothing
Limitation ground increases the thickness of material.When screening factor is more demanding, effective method be take multilayer screen structure, and need pair
Shielding lamellar spacing optimizes.
Existing magnetic shielding device mainly shields earth's magnetic field and low frequency spur magnetic field.Magnetic shielding device have tubular, rectangle,
The shapes such as trapezoidal, triangular form, taper and polygon, general tubular is using relatively broad.To improve magnetic shield performance, magnetic screen dress
The structure set is typically designed as multi-layer shield.Magnetic shielding device be Horizontal cylindrical multilayered structure, generally three layers to ten layers, phase
Ground detachable cap is answered also to have same quantity, frequently operation of uncapping is covered in pass can waste more time, while work as magnetic shielding cylinder diameter ruler
When very little larger, the diameter of detachable cap, weight are also increased accordingly, and such as the magnetic shielding cylinder that diameter is 120cm, the one layer of end cap matched is about
20kg, if eight end caps, then end cap total weight is about 160kg, and frequently pass is covered, uncapping keeps labor intensity of operating staff huge,
Bring great inconvenience.
And existing magnetic shielding cylinder is by being arranged in two aluminum right-angle structures of bottom plate two sides as support, magnetic shielding cylinder with
Contact between aluminum right-angle structure is line contact, and contact area is small, and magnetic shielding cylinder and aluminum right-angle structure surface are smooth, make
Frictional force also very little between magnetic shielding cylinder and aluminium right angle, when giving magnetic shielding cylinder buckle closure, magnetic shielding cylinder can be subjected to displacement, very big shadow
Ring the operation of buckle closure.Simultaneously because magnetic shielding cylinder discontinuity will cause the change of magnetic shielding cylinder when magnetic shielding cylinder weight is larger
Shape, or even make the end cap of magnetic shielding cylinder that can not close button.
Once a kind of magnetic shielding device, including magnetic shielding cylinder and magnetic screen lid were disclosed in patent document, wherein screening cover with
Hinge connection is used between magnetic shielding cylinder, although can solve the problems, such as that manual operation bring is time-consuming and laborious in short-term, magnetic screen
Lid be generally self-possessed it is excessively high, it is very high to the intensity requirement of hinge and its connector, after extended load and frequent use, hinge and its company
Fatigue and malformation can occur for fitting, and magnetic screen lid and magnetic shielding cylinder center point-blank may not give shutdown side
Lid brings obstruction, it is also possible to cause magnetic shielding device magnetic flux leakage increasingly severe.
Summary of the invention
In order to solve the above-mentioned problems of the prior art, the present invention provides that a kind of whole to open whole pass formula magnetic shielding device living
Lid, can use for a long time, integrally uncap, whole buckle closure, be convenient to operation, mitigate the labor intensity of operator, greatly mention
High working efficiency.
The technical scheme adopted by the invention is as follows: one kind is whole to open whole pass formula magnetic shielding device detachable cap, including interleaved
The internal layer of soft magnetism cover and insulating layer, detachable cap is soft magnetism cover, and outer layer is no magnetic cover, and soft magnetism cover is directly connected to magnetic shielding cylinder, soft magnetism cover
Diameter is sequentially increased from the inside to the outside, and no magnetic cover, soft magnetism cover and insulating layer are connected as one by fixedly connected part, and fixedly connected part can
It connects, can also be connected at other places at center.Adjustable connection board is across no magnetic cover plate face and stretches out outside without magnetic cover, extension end
Packaged type detachable cap trailer is connected, detachable cap can translate in limited range relative to adjustable connection board.Wherein without on magnetic cover
It can choose embedded connected adjustable connecting plate, movement the adjusting to the heart for horizontal direction of detachable cap.It is set on detachable cap trailer
There is a column, column is equipped with the mounting groove of vertical direction, and the cross section of mounting groove may be selected to be T shape, and the two of adjustable connection board
Side is equipped with connecting hole, and using screw bolt and nut connection fastening between adjustable connection board and mounting groove, loose bolts are, it can be achieved that can
Movement of the connecting plate in vertically-mounted slot is adjusted, detachable cap and shielding cylinder centering up and down is adjusted, the mounting groove of T shape makes connection more
Fastening, to support the weight of detachable cap.
Further, soft magnetism cover includes the soft magnetism cover I being arranged concentrically, soft magnetism cover II, soft magnetism cover III and soft magnetism cover IV, soft
Magnetic cover I, soft magnetism cover II, soft magnetism cover III and soft magnetism cover IV have all had the edge of fastening effect, soft magnetism cover I, soft magnetism cover II, soft
Magnetic cover III and soft magnetism cover IV, which is equipped with, can accommodate the cable preformed hole that External cable passes through.The number of plies design of soft magnetism cover is unlimited
In four layers, multilayer can be designed as needed, but connection structure form is identical.
Further, no magnetic cover includes aluminum cover and cover external coating, and no magnetic has been covered with the edge of fastening effect, no magnetic cover
It is equipped with cable preformed hole.
Further, fixedly connected part includes screwed pipe, nuts and washers, and screwed pipe is from no magnetic cover, insulating layer and soft magnetism
It is passed through at the center of cover, washer connecting screwed tube, the both ends attaching nut of screwed pipe.Nut connection is simple and convenient.
Further, adjustable connection board includes at least about two laths disposed in parallel, is equipped on every lath
Slotted hole, no magnetic cover are equipped with the board slot for accommodating adjustable connection board, connect detachable cap and lath by screw at slotted hole, adjustable
Connecting plate stretches out outside detachable cap, and the both ends of adjustable connection board are equipped with the screw hole of connection detachable cap trailer.
Further, insulating layer includes insulating layer I, insulating layer II, insulating layer III and insulating layer IV, and no magnetic cover is adjacent exhausted
Edge layer IV.The number of plies design of insulating layer is set according to soft magnetosphere.
Further, the innermost layer of detachable cap is soft magnetosphere.In addition, connecting washer at most interior soft magnetosphere.
Further, adjustable connection board includes the first connecting plate and the second connecting plate, the slotted hole on the first connecting plate
It is equal length hole with the slotted hole on the second connecting plate, and in same vertical centerline.Multiple parallel companies can also be designed
Fishplate bar is not limited to two, is also not necessarily limited to slotted hole.
Further, soft magnetism cover be thickness be not more than 3mm permalloy cover, be typically chosen with a thickness of 1mm, 1.3mm,
1.5mm, 2mm or 2.5mm.Wherein structural strength and shielding properties both sides can be taken into account with a thickness of the permalloy soft magnetism cover of 1.3mm
Face.Magnetic shielding material generally uses high magnetic conduction permalloy material, and the density of material is high, when magnetic shielding device volume is larger its
Weight is also biggish, such as a set of internal diameter 1m, six layers of magnetic shielding device of length 2m, total weight about 1.5T, it is difficult to mobile and peace
It sets.So in this patent to can be realized the whole whole function of opening in pass of detachable cap, while also removable drag is devised for magnetic shielding cylinder
Detachable cap is fixed on detachable cap trailer by vehicle, and the function of the whole pass of detachable cap can be realized in two vehicle docking, is removed when detachable cap trailer,
Realize the whole function of opening of detachable cap.
Further, insulating layer is generally PE layers of foaming that thickness is not more than 30mm.Commonly with a thickness of 15mm and 20mm
Two kinds.But the thickness of some insulating layers can also be greater than 30mm, the thickness and magnetic shielding cylinder of the selection one side and insulating layer of thickness
Each layer nozzle spacing it is related；On the other hand related with the outer diameter selection of magnetic shielding cylinder.
It is of the present invention it is this it is whole open whole pass formula magnetic shielding device detachable cap, structural strength is high, can use for a long time.Its
Multiple discrete magnetic screen lids are mainly assembled to the multiple field detachable cap an of entirety, detachable cap is fixed on detachable cap trailer, pushes vehicle
Body can snap together detachable cap and magnetic shielding cylinder.It, can be according to reality since lath is equipped with the circular hole at slotted hole and two ends
Left and right vibration detachable cap up and down is needed, detachable cap is aligned with the center of magnetic screen cylinder, the buckle structure on clamping detachable cap trailer makes
The close connection of magnetic shielding cylinder and detachable cap realizes the whole function of opening or integrally detain, alleviates the labor intensity of operator,
Facilitate operation, improves work efficiency.
Detailed description of the invention
Fig. 1 is the whole front view for opening whole pass formula magnetic shielding device detachable cap of the present invention；
Fig. 2 is the whole rearview for opening whole pass formula magnetic shielding device detachable cap of the present invention；
Fig. 3 is the whole sectional view for opening whole pass formula magnetic shielding device detachable cap of the present invention；
Fig. 4 is the overall structure figure after magnetic shielding device connection trailer of the present invention；
In figure: 1- is without magnetic cover；2- soft magnetism cover I；3- soft magnetism cover II；4- soft magnetism cover III；5- soft magnetism cover IV；6- washer；7- spiral shell
Line pipe；8- nut；9- insulating layer I；10- insulating layer II；11- insulating layer III；12- insulating layer IV；The first connecting plate of 13-；14-
Second connecting plate；15- magnetic shielding cylinder；16- detachable cap trailer；17- cable preformed hole.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with the drawings and specific embodiments, but
Be it will be understood to those of skill in the art that it is following described embodiments are some of the embodiments of the present invention, rather than it is whole
Embodiment is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.Based on the embodiments of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without making creative work, belongs to guarantor of the present invention
The range of shield.The person that is not specified actual conditions in embodiment, carries out according to conventional conditions or manufacturer's recommended conditions.Agents useful for same
Or production firm person is not specified in instrument, is the conventional products that can be obtained by commercially available purchase.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment 1
As shown in Figure 1, magnetic shielding device detachable cap includes the soft magnetism cover and insulating layer of interleaved, the internal layer of detachable cap is soft magnetism
Cover, the outer layer of detachable cap is no magnetic cover 1, and soft magnetism cover is directly connected to magnetic shielding cylinder, and diameter is sequentially increased soft magnetism cover from the inside to the outside, soft magnetism
Cover includes the soft magnetism cover I2, soft magnetism cover II3, soft magnetism cover III4 and the soft magnetism cover IV5 that are arranged concentrically, soft magnetism cover I, soft magnetism cover II, soft
Magnetic cover III and soft magnetism cover IV has all had the edge of fastening effect, soft magnetism cover I, soft magnetism cover II, soft magnetism cover III and soft magnetism cover IV
The cable preformed hole 17 that External cable passes through can be accommodated by being equipped with.The number of plies design of soft magnetism cover is not limited to four layers, can be according to need
Multilayer is designed, but connection structure form is identical.
No magnetic cover 1, soft magnetism cover and insulating layer are connected as one by fixedly connected part, and fixedly connected part can connect at center
It connects, can also be connected at other places.
Adjustable connection board is across no magnetic cover plate face and stretches out outside without magnetic cover 1, and extension end connects packaged type detachable cap trailer,
Detachable cap can translate in limited range relative to adjustable connection board.It is wherein adjustable without can choose embedded connection on magnetic cover
Formula connecting plate, the movement of detachable cap is for adjusting the heart.Adjustable connection board includes upper and lower at least two laths disposed in parallel, often
Slotted hole is equipped on root lath, no magnetic cover is equipped with the board slot for accommodating adjustable connection board, is connected and lived by screw at slotted hole
Lid and lath, adjustable connection board stretch out outside detachable cap, and the both ends of adjustable connection board are equipped with the screw hole of connection detachable cap trailer, detachable cap
The stringer of trailer is equipped with the slot of vertical direction, adjustable connection board is connected at vertical slots using bolt, loose nut
Realize the vibration up and down of detachable cap entirety.
Adjustable connection board includes the first connecting plate 13 and the second connecting plate 14, the slotted hole and second on the first connecting plate
Slotted hole on connecting plate is equal length hole, and in same vertical centerline.Multiple parallel connecting plates can also be designed, no
It is limited to two, is also not necessarily limited to slotted hole.
No magnetic cover 1 includes aluminum cover and cover external coating, and no magnetic has been covered with the edge of fastening effect, and no magnetic cover is equipped with line
Cable preformed hole.
Fixedly connected part includes screwed pipe 7, nut 8 and washer, and screwed pipe is from the center of no magnetic cover, insulating layer and soft magnetism cover
Place is across, washer connecting screwed tube, the both ends attaching nut of screwed pipe.Nut connection is simple and convenient.
Insulating layer includes insulating layer I9, insulating layer II10, insulating layer III11 and insulating layer IV12, the adjacent insulation of no magnetic cover
Layer IV12.The number of plies design of insulating layer is set according to soft magnetosphere.
The innermost layer of detachable cap is soft magnetosphere.In addition, connecting washer 6 at most interior soft magnetosphere.
Soft magnetism cover be thickness be not more than 3mm permalloy cover, be typically chosen with a thickness of 0.3mm, 0.5mm, 1mm,
1.3mm, 1.5mm, 2mm or 2.5mm.
Insulating layer is that thickness is greater than 5mm and is not more than PE layers of foaming of 50mm.Be typically chosen with a thickness of 15mm and 20mm
Two kinds.
The magnetic shielding device of this patent is mainly by multi-layer magnetic shielding cylinder 15, magnetic shielding cylinder trailer, detachable cap, detachable cap trailer 16
Composition.Multi-layer magnetic shielding cylinder is mounted on magnetic shielding cylinder trailer made of a non-magnetic material, detachable cap is passed through into its center
Hole is through on a screwed pipe.It is separated between the soft magnetosphere of detachable cap by insulating materials, the screwed pipe for being installed with detachable cap is solid by nut
It is scheduled on one to be fixed on this on detachable cap trailer made of non-magnetic material without magnetic cover two meeting stiles without on magnetic cover, lead to
Cross the concentricity between the adjustment detachable cap trailer position-adjustable detachable cap tightened up a screw and magnetic shielding cylinder cylinder.In magnetic shielding cylinder trailer and
Guide pad and lock are housed on detachable cap trailer.When needing buckle closure, push detachable cap trailer to magnetic shielding cylinder trailer, by leading
It is by latching that two locks are tight to block and magnetic shielding cylinder trailer make-up；When needing to uncap, lock is opened, by detachable cap trailer
It removes, there is damping bed course between magnetic shielding cylinder shell and semi arch bracket, to guarantee the steady of magnetic shielding cylinder and magnetic shielding cylinder trailer
Solidity is equipped with a plurality of safety belt in magnetic shielding cylinder shell, and safety belt is fixed on magnetic shielding cylinder trailer.
Further structure setting: the shape design of magnetic shielding device is an important factor for directly affecting magnetic shield performance,
Ideal shape should be sphere and spheroid, but in practical projects, this two kinds of shapes are difficult to process.So in practice
Tubular construction is most common structure, according to application demand, may be alternatively configured the structure of rectangle, but rectangular configuration magnetic shielding device
Internal remanent magnetism distribution is uniform not as good as tubular.
Material selection: for making high performance magnetic shielding device, magnetic shielding material is typically chosen high magnetic conduction permalloy.
Manufacturing process: production magnetic shielding cylinder generally has two kinds of techniques: common technique is that plate is carried out roller, then
It is welded, just has weld seam on such magnetic shielding cylinder side wall, if there is no-welding-seam particular/special requirement can also be by spinning process system
Make.Detachable cap is also to be made by the technique of spinning, and each layer of lid is all the cylinder with each layer with work, detachable cap and magnetic shielding cylinder
Between have good contact as far as possible, to guarantee to reduce leakage field as far as possible in junction, to guarantee magnetic shield performance.Soft magnetism cover
(detachable cap) and PE layers of alternate connection of foaming, outermost layer is no magnetic cover, and no magnetic cover can cover on outermost cylinder.Wherein soft magnetism
Layer and at least one cable preformed hole 17 on no magnetosphere, this cable preformed hole 17 are connected to extraneous and inner barrel, therefore, often
A soft magnetosphere and the cable preformed hole should all be set in same place without magnetosphere.
Installation method: soft magnetosphere is equipped with centre bore, central hole connecting screwed tube, the both ends connection of screwed pipe with no magnetosphere
Nut, in nut and soft magnetism interlayer, nut and without washer is arranged between magnetosphere.
Market application prospect: it for multi-layer shield cylinder, frequently closes in use, open detachable cap, brought greatly to operation
Inconvenience, especially large-sized multiple layer magnetic shielding cylinder, the weight of each detachable cap is very heavy, open and close detachable cap large labor intensity, sometimes without
One people's operation of method.By the above-mentioned modification design to detachable cap, it can be achieved that easily open and close lid purpose.
It is of the present invention it is this it is whole open whole pass formula magnetic shielding device detachable cap, multiple discrete magnetic screen lids are assembled one
Detachable cap is fixed on detachable cap trailer by a whole multiple field detachable cap, push car body can by detachable cap together with magnetic screen cover,
Since lath is equipped with the circular hole at slotted hole and two ends, vibration detachable cap up and down can be controlled according to actual needs, by detachable cap and magnetic cup
Cover the center alignment of cylinder.The whole function of opening or integrally detain is realized, the labor intensity of operator is greatly alleviated, side
Just it operates, improves work efficiency.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all to fall into the claims in the present invention confining spectrum
Technical solution, be within the scope of the present invention.
Claims (9)
1. one kind is whole to open whole pass formula magnetic shielding device detachable cap, it is characterised in that: soft magnetism cover and insulating layer including interleaved, it is living
The outer layer of lid is no magnetic cover, and no magnetic cover, soft magnetism cover and insulating layer are connected as one by fixedly connected part, and adjustable connection board passes through
No magnetic cover plate face is simultaneously stretched out outside without magnetic cover, and extension end connects packaged type detachable cap trailer, and detachable cap can be relative to adjustable connection
Plate translation.
2. whole whole pass formula magnetic shielding device detachable cap is opened according to claim 1, it is characterised in that: the soft magnetism cover includes same
Soft magnetism cover I, soft magnetism cover II, soft magnetism cover III and the soft magnetism cover IV of heart setting, soft magnetism cover I, soft magnetism cover II, soft magnetism cover III and soft magnetism
Cover IV has all had the edge of fastening effect, and soft magnetism cover I, soft magnetism cover II, soft magnetism cover III and soft magnetism cover IV are equipped with and can accommodate
The cable preformed hole that External cable passes through.
3. whole whole pass formula magnetic shielding device detachable cap is opened according to claim 1 or 2, it is characterised in that: the no magnetic cover packet
Aluminum cover and cover external coating are included, no magnetic has been covered with the edge of fastening effect, and no magnetic cover is equipped with cable preformed hole.
4. whole whole pass formula magnetic shielding device detachable cap is opened according to claim 1, it is characterised in that: the fixedly connected part packet
Screwed pipe, nuts and washers are included, screwed pipe passes through from the center of no magnetic cover, insulating layer and soft magnetism cover, washer connecting screwed tube,
The both ends attaching nut of screwed pipe.
5. whole whole pass formula magnetic shielding device detachable cap is opened according to claim 1, it is characterised in that: the adjustable connection board
Including at least about two laths disposed in parallel, slotted hole is equipped on every lath, it is adjustable that no magnetic cover is equipped with receiving
The board slot of connecting plate connects detachable cap and lath by screw at slotted hole, and adjustable connection board stretches out outside detachable cap, adjustable connection board
Both ends be equipped with connection detachable cap trailer screw hole.
6. whole whole pass formula magnetic shielding device detachable cap is opened according to claim 1, it is characterised in that: the insulating layer includes exhausted
Edge layer I, insulating layer II, insulating layer III and insulating layer IV, the adjacent insulating layer IV of no magnetic cover.
7. whole whole pass formula magnetic shielding device detachable cap is opened according to claim 1, it is characterised in that: the innermost layer of the detachable cap
For soft magnetosphere.
8. whole whole pass formula magnetic shielding device detachable cap is opened according to claim 5, it is characterised in that: the adjustable connection board
Including the first connecting plate and the second connecting plate, the slotted hole on slotted hole and the second connecting plate on the first connecting plate is equal length
Hole, and in same vertical centerline.
9. whole whole pass formula magnetic shielding device detachable cap is opened according to claim 1 or 2, it is characterised in that: the soft magnetism cover is
Thickness is not more than the permalloy cover of 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910464456.6A CN110062572A (en) | 2019-05-30 | 2019-05-30 | One kind is whole to open whole pass formula magnetic shielding device detachable cap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910464456.6A CN110062572A (en) | 2019-05-30 | 2019-05-30 | One kind is whole to open whole pass formula magnetic shielding device detachable cap |
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| CN110062572A true CN110062572A (en) | 2019-07-26 |
Family
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| CN201910464456.6A Pending CN110062572A (en) | 2019-05-30 | 2019-05-30 | One kind is whole to open whole pass formula magnetic shielding device detachable cap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044955A (en) * | 2019-12-26 | 2020-04-21 | 北京航空航天大学杭州创新研究院 | Automatic self-centering magnetic shielding device capable of opening and closing |
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