CN111627762B - Automatic electric engineering distribution circuit breaker who changes - Google Patents
Automatic electric engineering distribution circuit breaker who changes Download PDFInfo
- Publication number
- CN111627762B CN111627762B CN202010344383.XA CN202010344383A CN111627762B CN 111627762 B CN111627762 B CN 111627762B CN 202010344383 A CN202010344383 A CN 202010344383A CN 111627762 B CN111627762 B CN 111627762B
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- fixedly connected
- permanent magnet
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- spring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1009—Interconnected mechanisms
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Abstract
The invention discloses an automatic electrical engineering distribution circuit breaker, which comprises a square shell, wherein the shell is of a cavity structure, the inner bottom of the shell is fixedly connected with a square blocky lower plate, the side wall of the upper part of the shell is provided with a first permanent magnet, the middle part of the first permanent magnet is fixedly connected with a round shaft, the round shaft is fixedly connected with a gear, and the gear is meshed with a rack rod. Has the advantages that: the device of this application is when external current is too big, the electric current on the conductive coil is big more, its flexible range is big more, the gas pressure difference that electrically conductive slider motion produced in the spout is big more, when the pressure in the unable balanced insulating tube in constant voltage hole, the second spring in this application can drive rack bar upward movement, it makes first permanent magnet gyration 180 to drive gear motion, it is relative and attract each other with the heteropolar looks of second permanent magnet to make first permanent magnet, make electrically conductive slider and fixture block break away from the contact, the completion is to the automatic power-off protection of circuit.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to an automatic electrical engineering distribution circuit breaker.
Background
The circuit breaker is a switching device which can close and close current under a normal loop condition and can bear and break the current under an abnormal loop condition within a specified time, and generally comprises a contact system, an arc extinguishing system, an operating mechanism, a tripper, a shell and the like.
Traditional circuit breaker is more single in the function, is not convenient for install simultaneously, and intelligent degree is low simultaneously, can't carry out the auto-power-off when current and voltage transships, and the security is relatively poor, and above these problems just need improve traditional equipment, therefore here we propose an automatic electrical engineering distribution circuit breaker.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an automatic electrical engineering distribution circuit breaker.
In order to achieve the purpose, the invention adopts the following technical scheme: an automatic electrical engineering distribution circuit breaker comprises a square shell, wherein the shell is of a cavity structure, the inner bottom of the shell is fixedly connected with a square block-shaped lower plate, the side wall of the upper part of the shell is provided with a first permanent magnet, the middle part of the first permanent magnet is fixedly connected with a round shaft, a gear is fixedly connected onto the round shaft, and the gear is meshed with a rack rod;
the lower plate body is fixedly connected with a sliding column, the sliding column is connected with a second permanent magnet in a penetrating and sliding mode, the lower wall of the second permanent magnet is connected with two rotating rods in a rotating mode through a pin shaft, one end, far away from the second permanent magnet, of each rotating rod is connected with a conductive sliding block in a rotating mode through the pin shaft, the lower plate body is provided with two parallel sliding grooves, and the two conductive sliding blocks are connected into the two sliding grooves in a sliding mode respectively;
and a conductive coil is sleeved on the sliding column, one end of the conductive coil is fixedly connected with the second permanent magnet, the other end of the conductive coil is fixedly connected with the lower plate body, and two ends of the conductive coil are respectively and electrically connected with the two conductive sliding blocks.
In the automatic electrical engineering distribution circuit breaker, two walls of the housing are respectively and fixedly connected with a clamping block, each clamping block is provided with a clamping groove, one clamping block is fixedly connected with an insulating tube, the insulating tube is communicated with the clamping groove at the corresponding position, and the insulating tube and the rack bar are jointly provided with a locking device;
the rack rod upwards penetrates through the outer wall of the shell and is fixedly connected with a pressing plate, the lower wall of the pressing plate is fixedly connected with a second spring, and the lower end of the second spring is fixedly connected to the shell; and the lower wall of the outer side of the shell is provided with a mounting assembly.
In foretell automatic electrical engineering distribution circuit breaker, the insulating tube uses hard material to make, the insulating tube is L type structure, locking device includes the locking lever, the sealed sliding connection of locking lever is in the one end that the insulating tube is close to the rack bar, a first spring of one end fixedly connected with of rack bar is kept away from to the locking lever, annular baffle of one end fixedly connected with of rack bar is kept away from to first spring, the lateral wall at the insulating tube is fixed in the annular baffle veneer, a constant voltage hole has been seted up to the insulating tube lateral wall, the constant voltage hole is located one side that the annular baffle kept away from the rack bar, a locking hole has been seted up to the one end that the rack bar is close to the insulating tube.
In foretell automatic electrical engineering distribution circuit breaker, the installation component includes the locating piece, locating piece welded fastening is at the outside lower wall of casing, an inner hole has been seted up to the one side that the locating piece is close to the casing, a lockhole has been seted up respectively to two lateral walls of locating piece, every equal sealed sliding connection has a locking piece in the lockhole, two the lockhole passes through the fixed intercommunication of T type pipe with the inner hole, T type pipe is seted up inside the locating piece.
In foretell automatic electrical engineering distribution circuit breaker, the wall pipe of a vertical direction has been seted up in the lateral wall of casing, sealed sliding connection has a piston in the wall pipe, the piston top is rotated and is connected with a screw rod, the screw rod runs through casing to external world and rather than sliding connection, the outer wall threaded connection of screw rod and casing, the screw rod is located a carousel of the outer one end fixedly connected with of casing, carousel and clamp plate lower wall offset jointly have a baffle, baffle lower wall fixedly connected with third spring, the lower extreme fixed connection of third spring is at the upper wall of casing.
In the automatic electrical engineering distribution circuit breaker, the two locking blocks are fixedly connected with a nylon rope together, and the total length of the nylon rope is smaller than the maximum distance between the two sides of the positioning block and larger than the maximum distance between the two sides of the T-shaped pipe; the sliding column is of a prism structure, the second permanent magnet is in clearance fit with the sliding column, and a horizontal bulge is arranged at the top of the sliding column.
In the above-mentioned automatic electrical engineering distribution circuit breaker, the stiffness coefficient of the third spring is greater than the stiffness coefficient of the second spring, and the wall tube and the corresponding slider are both square structures.
Compared with the prior art, the air cylinder type bar-shaped food slicing mechanism has the advantages that:
1. the device of this application is when normal use, the continuous slip of electrically conductive slider in the draw-in groove, and external total current equals the total current on the conductive coil, and when external current was too big, the electric current on the conductive coil is big more, and its flexible range is big more, and the gas pressure difference that electrically conductive slider moved in the spout and produces is big more, and when the unable pressure in balanced insulating tube in constant voltage hole, both electric currents increased to make electrically conductive slider move for negative pressure makes locking lever and rack bar break away from the contact in the insulating tube. The second spring in this application can drive rack bar upward movement, drives gear motion and makes first permanent magnet gyration 180 for first permanent magnet and second permanent magnet heteropolarity are relative and attract each other, impel electrically conductive slider and fixture block to break away from the contact, accomplish the auto-power-off protection to the circuit.
2 in the invention, when the device of the invention needs to be installed at a certain position, a clamping groove is arranged at the corresponding position, then the positioning block of the device of the invention is inserted, the turntable is rotated to be screwed into the shell, and the piston is pushed to move, so that the pressure intensity in the wall pipe, the inner hole and the lock hole is increased, the two locking blocks move outwards to complete the locking action, the baffle is driven to move downwards in the period, and the blocking effect on the pressure plate is not generated.
Drawings
Fig. 1 is a schematic structural diagram of an automatic electrical engineering distribution circuit breaker according to the present invention;
fig. 2 is a schematic side wall cutaway view of an automated electrical engineering distribution circuit breaker according to the present invention;
fig. 3 is a top view of an automated electrical engineering distribution circuit breaker according to the present invention;
fig. 4 is an enlarged schematic view of a positioning block portion of an automatic electrical engineering distribution circuit breaker according to the present invention;
fig. 5 is an enlarged schematic view of a part a of an automated electrical engineering distribution circuit breaker according to the present invention.
In the figure: the device comprises a shell 1, a gear 2, a first permanent magnet 3, a sliding column 4, a conductive coil 5, a second permanent magnet 6, a sliding chute 7, a conductive sliding block 8, a rotating rod 9, a clamping block 10, a clamping groove 11, an insulating tube 12, a locking rod 13, an annular baffle 14, a first spring 15, a constant pressure hole 16, a rack rod 17, a pressing plate 18, a second spring 19, a positioning block 20, an inner hole 21, a locking hole 22, a T-shaped tube 23, a locking block 24, a rotary disc 25, a screw rod 26, a wall tube 27, a baffle 28 and a third spring 29.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-5, an automatic electrical engineering distribution circuit breaker comprises a square shell 1, wherein the shell 1 is of a cavity structure, the inner bottom of the shell 1 is fixedly connected with a square block-shaped lower plate, the upper side wall of the shell 1 is provided with a first permanent magnet 3, the middle part of the first permanent magnet 3 is fixedly connected with a round shaft, the round shaft is fixedly connected with a gear 2, and the gear 2 is meshed with a rack rod 17;
a sliding column 4 is fixedly connected to the lower plate body, a second permanent magnet 6 is connected to the sliding column 4 in a penetrating and sliding mode, the second permanent magnet 6 and the first permanent magnet 3 in the initial state are in different-grade opposition to generate an attraction effect, and the second permanent magnet 6 is close to the first permanent magnet 3 and far away from the lower plate body; at the moment, the two conductive sliding blocks 8 are not in contact with the clamping block 11, and the circuit breaker of the device is in a power-off state.
The lower wall of the second permanent magnet 6 is rotatably connected with two rotating rods 9 through a pin shaft, one end of each rotating rod 9, which is far away from the second permanent magnet 6, is rotatably connected with a conductive sliding block 8 through a pin shaft, the lower plate body is provided with two parallel sliding grooves 7, and the two conductive sliding blocks 8 are respectively connected in the two sliding grooves 7 in a sliding manner; the sliding column 4 is sleeved with a conductive coil 5, one end of the conductive coil 5 is fixedly connected with the second permanent magnet 6, the other end of the conductive coil 5 is fixedly connected with the lower plate body, and two ends of the conductive coil 5 are respectively and electrically connected with the two conductive sliding blocks 8.
The device of this application is when using, is connected the external power electricity on two fixture blocks 10, and the device during operation of this application, pressure moves clamp plate 18 and makes it drive rack bar 17 and move down to drive gear 2 and first permanent magnet 3 and rotate, and make first permanent magnet 3 and 6 same relative production in stage of second permanent magnet repulsive effect, thereby make 6 downstream of second permanent magnet, drive two dwang 9 rotations, and make two electrically conductive slider 8 and fixture block 10 contacts. At the moment, the two clamping blocks 10, the two conductive sliding blocks 8 and the conductive coil 5 are electrified, and the device is used in an alternating current environment, so that alternating current continuously flows through the conductive coil 5, a continuously alternating magnetic field is generated on the conductive coil 5, and the conductive coil 5 generates a continuous telescopic effect.
Two walls of the shell 1 are respectively and fixedly connected with a clamping block 10, each clamping block 10 is provided with a clamping groove 11, one clamping block 10 is fixedly connected with an insulating tube 12, the insulating tube 12 is communicated with the clamping groove 11 at the corresponding position, and the insulating tube 12 and the rack bar 17 are jointly provided with a locking device;
the rack bar 17 upwards penetrates through the outer wall of the shell 1 and is fixedly connected with a pressure plate 18, the lower wall of the pressure plate 18 is fixedly connected with a second spring 19, and the lower end of the second spring 19 is fixedly connected to the shell 1; the outer lower wall of the housing 1 is provided with a mounting assembly.
Insulating tube 12 uses hard material to make, insulating tube 12 is L type structure, locking device includes locking lever 13, the sealed sliding connection of locking lever 13 is in the one end that insulating tube 12 is close to rack bar 17, locking lever 13 keeps away from one end fixedly connected with first spring 15 of rack bar 17, ring baffle 14 of one end fixedly connected with of rack bar 17 is kept away from to first spring 15, the lateral wall at insulating tube 12 is fixed in the gluing of ring baffle 14, a constant voltage hole 16 has been seted up to insulating tube 12 lateral wall, constant voltage hole 16 is located one side that rack bar 17 was kept away from to ring baffle 14, a locking hole has been seted up to the one end that rack bar 17 is close to insulating tube 12.
In the application, the conductive sliding block 8 slides continuously in the clamping groove 11, so that the air pressure in the clamping groove 11 changes continuously, and when the conductive sliding block 8 moves out of the clamping groove 11, the air pressure in the clamping groove 11 is reduced; when the conductive sliding block 8 moves towards the inside of the clamping groove 11, the air pressure in the clamping groove 11 rises, and meanwhile, as the constant-pressure hole 16 is arranged in the device, the air in the clamping groove 11 can flow with the outside through the constant-pressure hole 16;
when the device of this application is when using, external total current equals the total current on the conductive coil 5, and when external current was too big, the electric current on the conductive coil 5 is big more, and its flexible range is big more, and the gas pressure difference that electrically conductive slider 8 motion produced in spout 7 is big more, and when the pressure in the unable balanced insulating tube 12 of constant voltage hole 16, both the electric current increased to make electrically conductive slider 8 move for negative pressure makes locking lever 13 and rack bar 17 break away from the contact in the insulating tube 12.
Under the above-mentioned state, second spring 19 in this application can drive rack bar 17 upward movement, drives the gear 2 motion and makes first permanent magnet 3 gyration 180 for first permanent magnet 3 and second permanent magnet 6 heteropolar are relative and attract each other, make electrically conductive slider 8 and fixture block 10 break away from the contact, accomplish the automatic power-off protection to the circuit.
The mounting assembly comprises a positioning block 20, the positioning block 20 is welded and fixed on the outer lower wall of the shell 1, one inner hole 21 is formed in one surface, close to the shell 1, of the positioning block 20, two side walls of the positioning block 20 are respectively provided with a locking hole 22, a locking block 24 is connected in each locking hole 22 in a sealing and sliding mode, the two locking holes 22 are fixedly communicated with the inner hole 21 through T-shaped pipes 23, and the T-shaped pipes 23 are arranged inside the positioning block 20.
The wall pipe 27 of a vertical direction has been seted up in the lateral wall of casing 1, sealed sliding connection has a piston in the wall pipe 27, the piston top is rotated and is connected with a screw rod 26, screw rod 26 runs through casing 1 to external world and rather than sliding connection, screw rod 26 and casing 1's outer wall threaded connection, screw rod 26 is located a carousel 25 of the outer one end fixedly connected with of casing 1, carousel 25 and clamp plate 18 lower wall offset jointly has a baffle 28, baffle 28 lower wall fixedly connected with third spring 29, the lower extreme fixed connection of third spring 29 is at the upper wall of casing 1.
The two locking blocks 24 are fixedly connected with a nylon rope together, and the total length of the nylon rope is smaller than the maximum distance between the two sides of the positioning block 20 and larger than the maximum distance between the two sides of the T-shaped pipe 23; the sliding column 4 is of a prism structure, so that the sliding column is prevented from rotating relative to the second permanent magnet column 6, the second permanent magnet column 6 is in clearance fit with the sliding column 4, and a horizontal bulge is arranged at the top of the sliding column 4; the third spring 29 has a higher stiffness than the second spring 19, and the casing tube 27 and the corresponding slider are of a square configuration.
In the invention, when the device of the present application needs to be installed at a certain position, a clamping groove is arranged at the corresponding position, then the positioning block 20 of the device of the present application is inserted, the turntable 25 is rotated to be screwed into the housing 1, and the piston is pushed to move, so that the pressure intensity in the wall tube 27, the inner hole 21 and the lock hole 22 is increased, and the two lock blocks 24 move outwards to complete the locking action, and the baffle 28 is driven to move downwards during the locking action, so that the blocking effect is not generated on the pressing plate 18.
Although terms such as the housing 1, the gear 2, the first permanent magnet 3, the sliding column 4, the conductive coil 5, the second permanent magnet 6, the sliding slot 7, the conductive slider 8, the rotating rod 9, the clamping block 10, the clamping slot 11, the insulating tube 12, the locking rod 13, the annular baffle 14, the first spring 15, the constant pressure hole 16, the rack rod 17, the pressing plate 18, the second spring 19, the positioning block 20, the inner hole 21, the locking hole 22, the T-shaped tube 23, the locking block 24, the rotating disc 25, the screw 26, the wall tube 27, the baffle 28, the third spring 29, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (5)
1. An automatic electrical engineering distribution circuit breaker comprises a square shell (1), and is characterized in that the shell (1) is of a cavity structure, the inner bottom of the shell (1) is fixedly connected with a square block-shaped lower plate body, the upper side wall of the shell (1) is provided with a first permanent magnet (3), the middle part of the first permanent magnet (3) is fixedly connected with a round shaft, the round shaft is fixedly connected with a gear (2), and the gear (2) is meshed with a rack rod (17);
the lower plate body is fixedly connected with a sliding column (4), the sliding column (4) is connected with a second permanent magnet (6) in a penetrating and sliding mode, the lower wall of the second permanent magnet (6) is connected with two rotating rods (9) in a rotating mode through a pin shaft, one end, far away from the second permanent magnet (6), of each rotating rod (9) is connected with a conductive sliding block (8) in a rotating mode through the pin shaft, the lower plate body is provided with two parallel sliding grooves (7), and the two conductive sliding blocks (8) are connected into the two sliding grooves (7) in a sliding mode respectively;
the sliding column (4) is sleeved with a conductive coil (5), one end of the conductive coil (5) is fixedly connected with a second permanent magnet (6), the other end of the conductive coil (5) is fixedly connected with a lower plate, and two ends of the conductive coil (5) are respectively and electrically connected with two conductive sliding blocks (8);
two walls of the shell (1) are respectively and fixedly connected with a clamping block (10), each clamping block (10) is provided with a clamping groove (11), one clamping block (10) is fixedly connected with an insulating pipe (12), the insulating pipe (12) is communicated with the clamping groove (11) at the corresponding position, and the insulating pipe (12) and the rack rod (17) are jointly provided with a locking device;
the rack rod (17) upwards penetrates through the outer wall of the shell (1) and is fixedly connected with a pressure plate (18), the lower wall of the pressure plate (18) is fixedly connected with a second spring (19), and the lower end of the second spring (19) is fixedly connected to the shell (1); the lower wall of the outer side of the shell (1) is provided with a mounting assembly;
insulating tube (12) use hard material to make, insulating tube (12) are L type structure, locking device includes locking lever (13), the one end that sealing sliding connection is close to rack bar (17) in insulating tube (12) is locked in locking lever (13), a first spring (15) of one end fixedly connected with of rack bar (17) is kept away from in locking lever (13), annular baffle (14) of one end fixedly connected with of rack bar (17) are kept away from in first spring (15), the lateral wall at insulating tube (12) is fixed in annular baffle (14) veneer, a constant voltage hole (16) has been seted up to insulating tube (12) lateral wall, constant voltage hole (16) are located one side that rack bar (17) were kept away from in annular baffle (14), a locking hole has been seted up to the one end that rack bar (17) are close to insulating tube (12).
2. The automatic electric engineering distribution circuit breaker of claim 1, wherein the mounting assembly comprises a positioning block (20), the positioning block (20) is welded and fixed to the outer lower wall of the housing (1), an inner hole (21) is formed in one surface, close to the housing (1), of the positioning block (20), two side walls of the positioning block (20) are respectively provided with a locking hole (22), each locking hole (22) is internally and slidably connected with a locking block (24) in a sealing manner, the two locking holes (22) are fixedly communicated with the inner hole (21) through a T-shaped pipe (23), and the T-shaped pipe (23) is arranged inside the positioning block (20).
3. The automatic electrical engineering distribution circuit breaker according to claim 2, wherein a vertical wall pipe (27) is formed in a side wall of the housing (1), a piston is hermetically and slidably connected in the wall pipe (27), a screw (26) is rotatably connected above the piston, the screw (26) penetrates through the housing (1) to the outside and is slidably connected with the housing, the screw (26) is in threaded connection with an outer wall of the housing (1), one end of the screw (26) located outside the housing (1) is fixedly connected with a rotary disc (25), a baffle (28) is abutted to a lower wall of the rotary disc (25) and a lower wall of the pressing plate (18) together, a third spring (29) is fixedly connected to a lower wall of the baffle (28), and a lower end of the third spring (29) is fixedly connected to an upper wall of the housing (1).
4. The automatic electrical engineering distribution circuit breaker according to claim 2, wherein a nylon rope is fixedly connected to the two locking blocks (24), and the total length of the nylon rope is smaller than the maximum distance between the two sides of the positioning block (20) and larger than the maximum distance between the two sides of the T-shaped pipe (23); the sliding column (4) is of a prism structure, the second permanent magnet (6) is in clearance fit with the sliding column (4), and a horizontal protrusion is arranged at the top of the sliding column (4).
5. An automatic electrical engineering distribution circuit breaker according to claim 3, characterized in that the stiffness coefficient of the third spring (29) is greater than the stiffness coefficient of the second spring (19), the wall tube (27) and the corresponding slider being of square construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344383.XA CN111627762B (en) | 2020-04-27 | 2020-04-27 | Automatic electric engineering distribution circuit breaker who changes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344383.XA CN111627762B (en) | 2020-04-27 | 2020-04-27 | Automatic electric engineering distribution circuit breaker who changes |
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| Publication Number | Publication Date |
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| CN111627762A CN111627762A (en) | 2020-09-04 |
| CN111627762B true CN111627762B (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010344383.XA Active CN111627762B (en) | 2020-04-27 | 2020-04-27 | Automatic electric engineering distribution circuit breaker who changes |
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| CN (1) | CN111627762B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112165070B (en) * | 2020-11-10 | 2021-09-10 | 江西大唐国际新能源有限公司 | Overvoltage preventing device of high-voltage circuit breaker |
| CN114103191B (en) * | 2021-11-15 | 2022-12-06 | 襄阳惠强新能源材料科技有限公司 | Method for manufacturing online pretreatment film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067330A (en) * | 1992-05-17 | 1992-12-23 | 李青 | Electric appliance with magnetic controlled isolating switch |
| CN203910670U (en) * | 2014-06-28 | 2014-10-29 | 浙江师范大学 | Magneto rheological fluid-based pressure adjustable switch |
| CN104321840A (en) * | 2012-05-21 | 2015-01-28 | 三菱电机株式会社 | Electromagnetic device and switching device using said electromagnetic device |
-
2020
- 2020-04-27 CN CN202010344383.XA patent/CN111627762B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1067330A (en) * | 1992-05-17 | 1992-12-23 | 李青 | Electric appliance with magnetic controlled isolating switch |
| CN104321840A (en) * | 2012-05-21 | 2015-01-28 | 三菱电机株式会社 | Electromagnetic device and switching device using said electromagnetic device |
| CN203910670U (en) * | 2014-06-28 | 2014-10-29 | 浙江师范大学 | Magneto rheological fluid-based pressure adjustable switch |
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| CN111627762A (en) | 2020-09-04 |
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