CN112098693A - Shielding room device for partial discharge test - Google Patents
Shielding room device for partial discharge test Download PDFInfo
- Publication number
- CN112098693A CN112098693A CN202011003062.XA CN202011003062A CN112098693A CN 112098693 A CN112098693 A CN 112098693A CN 202011003062 A CN202011003062 A CN 202011003062A CN 112098693 A CN112098693 A CN 112098693A
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- partial discharge
- bevel gear
- discharge test
- fixedly connected
- shielding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
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- General Physics & Mathematics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a shielding room device for a partial discharge test, which comprises a wall body and a shielding door arranged inside the side wall of the wall body, wherein the shielding door comprises a main body and a fixing plate arranged on the side surface of the main body, a rotating disc is arranged on one side of the fixing plate far away from the main body, a driving rotating shaft is arranged in the middle of the rotating disc, a connecting frame is arranged between the rotating disc and the driving rotating shaft, the middle of the connecting frame is fixedly connected with the driving rotating shaft, a transmission cavity is arranged inside the fixing plate, one end of the driving rotating shaft, which penetrates through the transmission cavity, is fixedly connected with a driving bevel gear, four driven bevel gears are meshed and connected with the annular side of the driving bevel gear, one side of the driven bevel gear, which is far away from the driving bevel gear, is fixedly. The invention can effectively avoid the influence of the external electromagnetic environment on the shielding chamber of the partial discharge test, thereby improving the accuracy of the detection result of the partial discharge test.
Description
Technical Field
The invention relates to the technical field of film performance detection, in particular to a shielding room device for a partial discharge test.
Background
The partial discharge is a discharge that occurs between the electrodes but does not penetrate the electrodes, and is a phenomenon in which repeated breakdown and extinction occur under the effect of high electric field strength due to a weak point inside the insulation of the device or a defect caused during the production process. It is expressed as the breakdown of gas in the insulation, the local breakdown of solid or liquid medium in a small range, or the local breakdown discharge caused by the concentration of the field intensity at the edge and sharp corner of the metal surface.
The energy of this discharge is very small, so its short-term presence does not affect the dielectric strength of the electrical equipment. However, if partial discharge occurs continuously in the electrical equipment under the operating voltage, the dielectric property of the insulation gradually deteriorates and local defects expand due to the growth and accumulation effect of the weak discharge, and finally the whole insulation breakdown is caused. The existing partial discharge test is generally carried out in a partial discharge test shielding room, the partial discharge test shielding room can provide a sealed space which is not interfered by an external electric field and a magnetic field for the test, so the whole structure of the shielding room generally requires a seamless welding technology, but the shielding room is generally provided with a specially processed door for personnel and equipment to pass through, and due to the opening and closing property of the door, a straight-through internal and external gap exists at the joint of the door and a wall body, and the existence of the gap can influence the reliability of a test result.
Therefore, the partial discharge shielding chamber device capable of preventing the gap between the door and the wall from influencing the test result is provided.
Disclosure of Invention
The invention aims to solve the problem that a direct-through inner and outer gap exists at the joint of a door and a wall body to influence a partial discharge test result in the prior art, and provides a partial discharge test shielding chamber device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a shielding room device for a partial discharge test comprises a wall body and a shielding door arranged inside the side wall of the wall body, wherein the shielding door comprises a main body and a fixing plate arranged on the side surface of the main body, a turntable is arranged on one side of the fixing plate far away from the main body, a driving rotating shaft is arranged in the middle of the turntable, a connecting frame is arranged between the turntable and the driving rotating shaft, the middle of the connecting frame is fixedly connected with the driving rotating shaft, a transmission cavity is arranged inside the fixing plate, a driving bevel gear is fixedly connected to one end, penetrating through the transmission cavity, of the driving rotating shaft, four driven bevel gears are meshed and connected to the annular side of the driving bevel gear, a transmission screw is fixedly connected to one side, far away from the driving bevel gear, of the driven bevel gear, a push rod is connected to one end, far away, one end fixed connection of fixed block is in the main part, the one end fixedly connected with outer baffle that the catch bar passed the fixed block.
In the shielding chamber device for the partial discharge test, four driven bevel gears are annularly arranged on the ring side of the driving bevel gear.
In the shielding room device for the partial discharge test, four outer baffles are vertically arranged, and the length of the four outer baffles is matched with the length and the width of the main body.
In the shielding room device for the partial discharge test, four outer baffle positioning blocks are arranged on the side face of the wall body, and the four outer baffle positioning blocks are respectively arranged at positions opposite to the four outer baffles.
In foretell partial discharge test shielding room device, the inside of main part is equipped with the kicking block activity groove, be equipped with the kicking block in the kicking block activity groove, the right part of kicking block is the arc piece, the inside of kicking block is equipped with first screw.
In the shielding room device for the partial discharge test, a screw is fixedly connected to one side, away from the driving rotating shaft, of the driving bevel gear, and one end, away from the driving bevel gear, of the screw is arranged in the first screw hole.
In the shielding room device for the partial discharge test, four ejector rods which are perpendicular to each other are arranged on the annular side of one end, close to the screw, of the ejector block, the ejector rods are in contact with the annular side of the ejector block, and the end, close to the ejector block, of each ejector rod is arc-shaped.
In foretell local discharge test shielded cell device, be equipped with four spring slots in the main part, the middle part fixedly connected with spring catch of ejector pin, spring catch locates the spring slot, the middle part cover of ejector pin is equipped with reset spring, reset spring's upper end fixed connection is in the bottom of spring catch, reset spring's lower extreme fixed connection is in the bottom of spring slot.
In the shielding chamber device for the partial discharge test, one end of the ejector rod, which is far away from the ejector block, is fixedly connected with the inner baffle, the inner baffle is movably connected in the main body, an inner baffle groove is formed in the wall body at a position corresponding to the inner baffle, and the length and the width of the inner baffle groove are matched with those of the inner baffle.
Compared with the prior art, the invention has the following advantages:
1. set up the carousel and pass through link fixed connection with the initiative pivot, the testing personnel of being convenient for drives the initiative pivot through rotating the carousel and rotates, and then makes drive screw take place to rotate through four driven bevel gears that the meshing is connected, under drive screw's effect, promotes catch bar and outer baffle and removes to the joint gap department of shield door and wall body, forms first sheltering from to the gap, can avoid the electromagnetism directly to get into the shield room through gap department outside, influences the accuracy of test result.
2. The screw rod is fixedly connected with the driving bevel gear, and the screw rod is in threaded connection with the top block, so that the screw rod can drive the top block to move while rotating, the four ejector rods and the inner baffle are further pushed to move towards the inner baffle groove respectively, the inner baffle is made to enter the inner baffle groove, the electromagnetic influence at the gap is further reduced, and the test result is more accurate.
3. The shielding door is provided with the spring retaining sheet fixedly connected with the ejector rod, and the side surface of the ejector rod is sleeved with the reset spring, so that the ejector rod can reset under the condition of no stress, the opening and closing of the shielding door are not influenced, meanwhile, the shielding door is simple and reliable in structure, the locking and the opening of the door can be completed without additionally arranging a locking tool, and the locking effect is good.
Drawings
FIG. 1 is a schematic external structural diagram of a shielding chamber device for partial discharge test according to the present invention;
FIG. 2 is a rear view of a shield door of a partial discharge test shield room apparatus according to the present invention;
FIG. 3 is a left side view of a shielding door of a shielding room device for partial discharge test according to the present invention in an unsealed state;
FIG. 4 is an enlarged view of the point A in FIG. 3;
FIG. 5 is an enlarged view of FIG. 3 at C;
FIG. 6 is a left side view of a shielding door of a shielding room device for partial discharge test according to the present invention in a closed state;
fig. 7 is an enlarged view of B in fig. 6.
In the figure: the device comprises a wall body 1, a shield door 2, a main body 3, a fixing plate 4, a rotary table 5, a connecting frame 6, a transmission screw 7, a push rod 8, a fixing block 9, an outer baffle 10, a transmission cavity 11, a driving rotating shaft 12, a driving bevel gear 13, a driven bevel gear 14, a movable groove of a top block 15, a top block 16, a first screw hole 17, a top rod 18, a screw rod 19, an inner baffle 20, an inner baffle groove 21, an outer baffle positioning block 22, a spring groove 23, a return spring 24 and a spring catch 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, a shielding room device for partial discharge test, including wall body 1 and shielding door 2 arranged inside the wall body 1, the partial discharge test is carried out in the wall body 1, it can be avoided that the external electromagnetic environment causes the influence on the test, and simultaneously it can be avoided that the internal electromagnetism causes the influence on the outside, this is prior art, not explained in detail, shielding door 2 includes main part 3 and fixed plate 4 arranged at the side of main part 3, one side of main part 3 is kept away from to fixed plate 4 is equipped with carousel 5, the middle part of carousel 5 is equipped with initiative pivot 12, be equipped with link 6 between carousel 5 and the initiative pivot 12, the middle part and the initiative pivot 12 fixed connection of link 6, through setting up link 6 and carousel 5, can be convenient for the operating personnel through manual rotation carousel 5, and then control initiative pivot 12 is rotatory.
The inside of fixed plate 4 is equipped with transmission chamber 11, the one end fixedly connected with drive bevel gear 13 that transmission chamber 11 was passed to initiative pivot 12, the ring side meshing of drive bevel gear 13 is connected with four driven bevel gear 14, it can avoid external factors to influence the transmission of drive bevel gear 13 and driven bevel gear 14 to set up transmission chamber 11, one side fixedly connected with drive screw 7 of drive bevel gear 13 is kept away from to driven bevel gear 14, can drive bevel gear 13 through initiative pivot 12 and rotate, drive four driven bevel gear 14 and rotate, and then can make and take place to rotate with driven bevel gear 14 fixed connection's drive screw 7.
One end threaded connection that driven bevel gear 14 passed fixed plate 4 was kept away from to drive screw 7 has catch bar 8, the middle part splined connection of catch bar 8 has fixed block 9, fixed block 9 can be fixed catch bar 8, avoid catch bar 8 to take place to rotate simultaneously, the one end fixed connection of fixed block 9 is in main part 3, catch bar 8 passes the outer baffle 10 of the one end fixedly connected with of fixed block 9, because catch bar 8 is restricted by fixed block 9, catch bar 8 can not take place to rotate, in drive screw 7 pivoted, catch bar 8 takes place to remove, and then steerable outer baffle 10 removes, thereby form to block gap department.
More preferably, four driven bevel gears 14 are annularly arranged on the ring side of the driving bevel gear 13, four outer barriers 10 are vertically arranged with respect to each other, the length of the four outer barriers 10 matches the length and width of the main body 3, and the four outer barriers 10 can be controlled to move to four sides of the main body 3 contacting the wall 1 by the four driven bevel gears 14.
Further, the side of wall body 1 is equipped with four outer baffle locating pieces 22, four outer baffle locating pieces 22 set up respectively in the position relative with four outer baffles 10, can block and fix a position outer baffle 10 through outer baffle locating piece 22, thereby avoid outer baffle 10 excessive movement, the inside of main part 3 is equipped with kicking block movable slot 15, be equipped with kicking block 16 in the kicking block movable slot 15, kicking block 16 can control about in kicking block movable slot 15, the right part of kicking block 16 is the arc piece, pass through splined connection between the left part of kicking block 16 and the kicking block movable slot 15, can avoid kicking block 16 to take place to rotate, the inside of kicking block 16 is equipped with first screw 17, through the removal of the steerable kicking block 16 of first screw 17.
More specifically, a screw 19 is fixedly connected to a side of the drive bevel gear 13 away from the drive rotating shaft 12, one end of the screw 19 away from the drive bevel gear 13 is disposed in the first screw hole 17, the screw 19 can rotate along with the rotation of the drive bevel gear 13, the rotation cannot occur because the left portion of the top block 16 is restricted by the spline, and the top block 16 can be controlled to move when the screw 19 rotates.
The ejector block 16 is close to the one end ring side of screw rod 19 and is provided with four mutually perpendicular's ejector pin 18, and ejector pin 18 contacts with the ring side of ejector block 16, and the one end that ejector pin 18 is close to ejector block 16 is the arc, because the right part of ejector block 16 is the arc, when ejector block 16 removed, can promote 18 and remove to the direction of keeping away from ejector block 16.
Be equipped with four spring groove 23 in the main part 3, the middle part fixedly connected with spring catch 25 of ejector pin 18, spring catch 25 influences each other with the removal of ejector pin 18, spring catch 25 locates in spring groove 23, the middle part cover of ejector pin 18 is equipped with reset spring 24, reset spring 24's upper end fixed connection is in the bottom of spring catch 25, reset spring 24's lower extreme fixed connection is in the bottom of spring groove 23, when ejector pin 18 removes to the direction of keeping away from 16, drive spring catch 25 and remove, and then compress reset spring 24, reset spring 24 energy storage, when ejector pin 18 does not receive kicking block 16 to influence, reset spring 24 energy release, and then can make ejector pin 18 reset.
The one end fixedly connected with inner baffle 20 that ejector pin 18 kept away from kicking block 16, through the removal of baffle 20 in the ejector pin 18 is steerable, inner baffle 20 swing joint is in main part 3, inner baffle 20 can grant in the main part 3, do not influence opening and shutting of main part 3, the inside relative inner baffle 20's of wall body 1 position is equipped with inner baffle groove 21, the length and the width of inner baffle groove 21 and inner baffle 20 phase-match, when ejector pin 18 moved to the direction of keeping away from 16, can promote inner baffle 20 and enter inner baffle groove 21 in, form the gap that forms between main part 3 and the wall body 1 and block.
The working principle is as follows:
when the shielding door is used, the shielding door 2 is closed, the rotary disc 5 is manually rotated, the driving rotary shaft 12 is rotated under the action of the connecting frame 6, the driving bevel gear 13 in the transmission cavity 11 can be driven to rotate, the driving bevel gear 13 can drive the four driven bevel gears 14 engaged with the driving bevel gear to rotate, the driven bevel gears 14 are fixedly connected with the driving screw 7, the driving screw 7 rotates along with the rotation of the driven bevel gears 14, the driving screw 7 is in threaded connection with the push rod 8, the push rod 8 is in splined connection with the fixed block 9, the push rod 8 moves along with the rotation of the driving screw 7 in the direction away from the driven bevel gears 14, the outer baffle 10 is fixedly connected with the tail end of the push rod 8, the outer baffle 10 is limited by the outer baffle positioning block 22 on the side surface of the wall body 1 along with the movement of the push rod 8, the outer baffle 10 moves to the position above the gap between the main body 3 and the wall body 1, and forming shielding for the gap.
When the driving bevel gear 13 rotates, the screw rod 19 can be driven to rotate, the screw rod 19 is in threaded connection with the ejector block 16, the left part of the ejector block 16 is in splined connection with the ejector block movable groove 15 and cannot rotate, the ejector block 16 moves towards the direction close to the driving bevel gear 13 under the action of the screw rod 19, because the lower end of the ejector rod 18 is attached to the ejector block 16, the ejector rod 18 can be pushed to move towards the direction far away from the ejector block 16 when the ejector block 16 moves, meanwhile, the spring blocking piece 25 moves along with the movement of the ejector rod 18, the return spring 24 is compressed, the return spring 24 stores energy, the inner blocking plate 20 is driven to move towards the direction far away from the ejector block 16 when the ejector rod 18 moves, and then the inner blocking plate enters the inner blocking plate groove 21, and secondary blocking is formed for a gap between the main body 3 and the wall; when the door needs to be opened, the rotating disc 5 is rotated reversely, the outer baffle 10 is not contacted with the surface of the wall body 1, the ejector block 16 moves towards the direction far away from the screw rod 19, the ejector rod 18 is not influenced by the ejector block 16 and resets under the action of the reset spring 24, and the opening and closing of the shielding door 2 are not influenced at the moment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A shielding room device for a partial discharge test comprises a wall body (1) and a shielding door (2) arranged inside the side wall of the wall body (1), and is characterized in that the shielding door (2) comprises a main body (3) and a fixing plate (4) arranged on the side face of the main body (3), a rotary table (5) is arranged on one side, away from the main body (3), of the fixing plate (4), a driving rotating shaft (12) is arranged in the middle of the rotary table (5), a connecting frame (6) is arranged between the rotary table (5) and the driving rotating shaft (12), the middle of the connecting frame (6) is fixedly connected with the driving rotating shaft (12), a transmission cavity (11) is arranged inside the fixing plate (4), one end, penetrating through the transmission cavity (11), of the driving rotating shaft (12) is fixedly connected with a driving bevel gear (13), and four driven bevel gears (14) are meshed with the annular side of the driving bevel, one side fixedly connected with drive screw (7) of initiative bevel gear (13) is kept away from driven bevel gear (14), the one end threaded connection that driven bevel gear (14) were kept away from in drive screw (7) passed fixed plate (4) has catch bar (8), the middle part splined connection of catch bar (8) has fixed block (9), the one end fixed connection of fixed block (9) is on main part (3), catch bar (8) pass the one end fixedly connected with outer baffle (10) of fixed block (9).
2. The partial discharge test shielding chamber device according to claim 1, wherein four driven bevel gears (14) are annularly arranged on the ring side of the driving bevel gear (13).
3. The partial discharge test shielding chamber device according to claim 1, characterized in that four outer baffles (10) are arranged vertically to each other, and the length of the four outer baffles (10) is matched with the length and width of the main body (3).
4. The shielding chamber device for partial discharge test according to claim 1, wherein four outer baffle positioning blocks (22) are arranged on the side surface of the wall body (1), and the four outer baffle positioning blocks (22) are respectively arranged at positions opposite to the four outer baffles (10).
5. The shielding room device for the partial discharge test is characterized in that a top block movable groove (15) is formed in the main body (3), a top block (16) is arranged in the top block movable groove (15), the right part of the top block (16) is an arc-shaped block, and a first screw hole (17) is formed in the top block (16).
6. The shielding chamber device for partial discharge tests is characterized in that a screw (19) is fixedly connected to one side of the driving bevel gear (13) far away from the driving rotating shaft (12), and one end of the screw (19) far away from the driving bevel gear (13) is arranged in the first screw hole (17).
7. The shielding chamber device for the partial discharge test is characterized in that four mutually perpendicular ejector rods (18) are arranged on the annular side of one end, close to the screw rod (19), of the top block (16), the ejector rods (18) are in contact with the annular side of the top block (16), and one end, close to the top block (16), of each ejector rod (18) is arc-shaped.
8. The shielding chamber device for the partial discharge test according to claim 7, wherein four spring slots (23) are formed in the main body (3), the middle of the ejector rod (18) is fixedly connected with a spring stop piece (25), the spring stop piece (25) is arranged in the spring slot (23), the middle of the ejector rod (18) is sleeved with a return spring (24), the upper end of the return spring (24) is fixedly connected to the bottom of the spring stop piece (25), and the lower end of the return spring (24) is fixedly connected to the bottom of the spring slot (23).
9. The shielding chamber device for the partial discharge test is characterized in that one end, far away from the top block (16), of the top rod (18) is fixedly connected with an inner baffle plate (20), the inner baffle plate (20) is movably connected in the main body (3), an inner baffle plate groove (21) is formed in the wall body (1) at a position opposite to the inner baffle plate (20), and the length and the width of the inner baffle plate groove (21) are matched with those of the inner baffle plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011003062.XA CN112098693B (en) | 2020-09-22 | 2020-09-22 | Shielding room device for partial discharge test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011003062.XA CN112098693B (en) | 2020-09-22 | 2020-09-22 | Shielding room device for partial discharge test |
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| Publication Number | Publication Date |
|---|---|
| CN112098693A true CN112098693A (en) | 2020-12-18 |
| CN112098693B CN112098693B (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011003062.XA Active CN112098693B (en) | 2020-09-22 | 2020-09-22 | Shielding room device for partial discharge test |
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| CN (1) | CN112098693B (en) |
Citations (9)
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|---|---|---|---|---|
| JPH02112583A (en) * | 1988-10-20 | 1990-04-25 | Suwan Shoji Kk | Shielding device for door pocket section of folding door |
| JPH07159441A (en) * | 1993-12-09 | 1995-06-23 | Ii & C Eng Kk | Electromagnetic shielding door device |
| JPH10140939A (en) * | 1996-11-12 | 1998-05-26 | N Ee Mech:Kk | Door device for shield enclosure |
| CN203191510U (en) * | 2013-04-22 | 2013-09-11 | 上海蓝波高电压技术设备有限公司 | Shielding room device for partial discharge test |
| CN105507780A (en) * | 2016-01-26 | 2016-04-20 | 河南民生特种装备有限公司 | Full-automatic electromagnetic screen door with emergency opener |
| KR20170031368A (en) * | 2015-09-11 | 2017-03-21 | 주식회사 성진미도어 | Folding door |
| CN108716349A (en) * | 2018-03-19 | 2018-10-30 | 江苏工程职业技术学院 | A kind of screen door in rail transit |
| CN209179682U (en) * | 2018-06-21 | 2019-07-30 | 四川恒靖源环保科技有限公司 | A kind of electromagnetic shield door with emergency access |
| CN209761237U (en) * | 2018-08-01 | 2019-12-10 | 东台市苏宝电磁屏蔽设备有限公司 | Shielding reinforcing device for shielding door |
-
2020
- 2020-09-22 CN CN202011003062.XA patent/CN112098693B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02112583A (en) * | 1988-10-20 | 1990-04-25 | Suwan Shoji Kk | Shielding device for door pocket section of folding door |
| JPH07159441A (en) * | 1993-12-09 | 1995-06-23 | Ii & C Eng Kk | Electromagnetic shielding door device |
| JPH10140939A (en) * | 1996-11-12 | 1998-05-26 | N Ee Mech:Kk | Door device for shield enclosure |
| CN203191510U (en) * | 2013-04-22 | 2013-09-11 | 上海蓝波高电压技术设备有限公司 | Shielding room device for partial discharge test |
| KR20170031368A (en) * | 2015-09-11 | 2017-03-21 | 주식회사 성진미도어 | Folding door |
| CN105507780A (en) * | 2016-01-26 | 2016-04-20 | 河南民生特种装备有限公司 | Full-automatic electromagnetic screen door with emergency opener |
| CN108716349A (en) * | 2018-03-19 | 2018-10-30 | 江苏工程职业技术学院 | A kind of screen door in rail transit |
| CN209179682U (en) * | 2018-06-21 | 2019-07-30 | 四川恒靖源环保科技有限公司 | A kind of electromagnetic shield door with emergency access |
| CN209761237U (en) * | 2018-08-01 | 2019-12-10 | 东台市苏宝电磁屏蔽设备有限公司 | Shielding reinforcing device for shielding door |
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| Title |
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| LEE R. GLASGOW等: "Shielding Doors", 《IEEE TRANSACTIONS ON NUCLEAR SCIENCE》 * |
| 何为等: "新型电磁屏蔽门研制", 《防护工程》 * |
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|---|---|
| CN112098693B (en) | 2023-01-24 |
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