CN112531640B - Leakage circuit breaking system of electrical equipment - Google Patents
Leakage circuit breaking system of electrical equipment Download PDFInfo
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- CN112531640B CN112531640B CN202011456940.3A CN202011456940A CN112531640B CN 112531640 B CN112531640 B CN 112531640B CN 202011456940 A CN202011456940 A CN 202011456940A CN 112531640 B CN112531640 B CN 112531640B
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- fixedly connected
- hole
- close
- wall
- insulating sleeve
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Distribution Board (AREA)
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Abstract
The invention discloses an electric leakage circuit breaking system of electrical equipment, which comprises a distribution box, wherein a placing box is fixedly connected to the right side of the distribution box. The invention is characterized in that the switch is closed by arranging the closing gate, the first movable hole, the sealing insulating sleeve, the spring wire, the conductive magnetic disc, the common magnet, the conductive wire, the positioning device, the fixing device and the clamping groove, wherein the electric energy in the spring wire is transmitted into the conductive magnetic disc to enable the conductive magnetic disc to generate magnetism, the magnetism in the conductive magnetic disc is mutually repelled with the common magnet on the left side of the hollow pipe, the repulsive force can drive the plastic pushing block on the left side of the hollow pipe to push the closing gate valve, the closing of the power distribution cabinet is completed, the problem that the existing power distribution box falls off from the internal circuit and contacts with the power distribution box is solved, the current is led into the metal shell of the power distribution box, and once surrounding pedestrians are carelessly touched, the problem of easily causing electric shock body death is solved.
Description
Technical Field
The invention belongs to the technical field of anti-leakage circuit breaking of distribution boxes, and particularly relates to a leakage circuit breaking system of electrical equipment.
Background
The distribution box is a mass parameter on data, generally forms low-voltage forest according to electric wiring, and requires that switch equipment, measuring instruments, protection electrical appliances and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or on a screen, so that the low-voltage distribution box can be switched on or off by means of a manual or automatic switch in normal operation.
The distribution box is to assemble switchgear, measuring instrument, protection electrical apparatus and auxiliary assembly in or on the screen of the closed or semi-closed metal cabinet according to the electrical wiring requirement, form the low-voltage distribution device, can put through or break the circuit with the help of manual or automatic switch during normal operation, in conclusion, the current distribution box takes place to drop with the distribution box contact in the internal circuit, can lead to the electric current in the distribution box metal casing, in case pedestrian's carelessly touches the problem that easily leads to electric shock body death around, inconvenient user uses.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a leakage circuit breaking system of electrical equipment, which has the advantage of preventing leakage, and solves the problems that the existing distribution box falls off from an internal circuit and contacts with the distribution box, current can be led into a metal shell of the distribution box, and electric shock body death is easy to occur once surrounding pedestrians touch carelessly.
The invention discloses an electric leakage circuit breaking system of electrical equipment, which comprises an electric distribution box, wherein a placing box is fixedly connected to the right side of the electric distribution box, a closing gate is fixedly connected to the rear side of the inner wall of the placing box, a first movable hole is formed in the right side of the placing box, a sealing insulating sleeve is movably connected to the inner cavity of the first movable hole, a spring wire is movably connected to the inner cavity of the sealing insulating sleeve, a conductive magnetic disc is fixedly connected to the left side of the spring wire, a common magnet is movably connected to the left side of the conductive magnetic disc, a conductive wire is fixedly connected to the right side of the placing box, a moving hole is formed in the right side of the placing box, a containing groove is formed in the left side of the moving hole, a positioning device is movably connected to the inner cavity of the containing groove, fixing devices are arranged at the top and the bottom of the positioning device, through holes are formed in the top and the bottom of the first movable hole, and clamping grooves are formed in the top and the bottom of the sealing insulating sleeve.
Preferably, the right side of the conductive wire is fixedly connected with a flexible coil, and the left side of the flexible coil is fixedly connected with a spring wire.
As the preferable mode of the invention, the left side of the common magnet is fixedly connected with a hollow pipe, and one side of the hollow pipe, which is close to the inner wall of the sealed insulating sleeve, is contacted with the inner wall of the sealed insulating sleeve.
Preferably, the left side of the hollow pipe is fixedly connected with a plastic push block, and one side of the plastic push block, which is close to the closing gate, is in contact with the closing gate.
As the preferable mode of the invention, the positioning device comprises an extrusion plate, the rear side of the extrusion plate is fixedly connected with a spring, and the top and the bottom of the extrusion plate are both movably connected with a first rotating shaft.
As the preferable mode of the invention, the fixing device comprises a movable plate, one side, close to the through hole, of the movable plate is fixedly connected with a clamping block matched with the clamping groove, one side, close to the through hole, of the clamping block penetrates through the through hole and extends to the inner cavity of the clamping groove, two opposite sides of the movable plate are respectively and movably connected with a second rotating shaft, one side, close to the spring, of the second rotating shaft is fixedly connected with an adjusting plate, and one side, close to the first rotating shaft, of the adjusting plate is fixedly connected with the first rotating shaft.
As the preferable mode of the invention, the front side and the rear side of the movable plate are fixedly connected with the sliding blocks, one side of the storage groove, which is close to the sliding blocks, is provided with the sliding grooves matched with the sliding blocks, and one side of the sliding blocks, which is close to the inner walls of the sliding grooves, is contacted with the inner walls of the sliding grooves.
As preferable in the invention, the front side and the rear side of the clamping block are respectively provided with a chamfer, and one side of the chamfer, which is close to the inner wall of the clamping groove, is contacted with the inner wall of the clamping groove.
As the preferable one of the invention, the front side of the extrusion plate is provided with a limit hole, one side of the storage groove close to the limit hole is fixedly connected with a limit rod matched with the limit hole, and one side of the limit rod close to the inner wall of the limit hole is contacted with the inner wall of the limit hole.
Preferably, the right side of the sealed insulating sleeve is provided with a second movable hole, and one side of the spring wire, which is close to the inner wall of the second movable hole, is in contact with the inner wall of the second movable hole.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is characterized in that the switch is closed by arranging the closing gate, the first movable hole, the sealing insulating sleeve, the spring wire, the conductive magnetic disc, the common magnet, the conductive wire, the positioning device, the fixing device and the clamping groove, wherein the electric energy in the spring wire is transmitted into the conductive magnetic disc to enable the conductive magnetic disc to generate magnetism, the magnetism in the conductive magnetic disc is mutually repelled with the common magnet on the left side of the hollow pipe, the repulsive force can drive the plastic pushing block on the left side of the hollow pipe to push the closing gate valve, the closing of the power distribution cabinet is completed, the problem that the existing power distribution box falls off from the internal circuit and contacts with the power distribution box is solved, the current is led into the metal shell of the power distribution box, and once surrounding pedestrians are carelessly touched, the problem of easily causing electric shock body death is solved.
2. According to the invention, the flexible coil is arranged, so that the spring wire and the conductive wire can be always in an electrified state under the action of the flexible coil when the sealed insulating sleeve moves, and the sealed insulating sleeve is convenient for a user to use.
3. The invention sets the hollow tube, the hollow tube has lighter weight, and the repulsive force between the conductive magnetic disk and the common magnet can make the hollow tube more smooth when moving, and the moving speed is fast.
4. According to the invention, the plastic push block is arranged, so that the hollow pipe moves to push the closing gate, and the plastic push block balances the weight of the two sides of the hollow pipe, so that the hollow pipe is more stable in moving.
5. According to the invention, the positioning device is arranged, when the adjusting plate is in the storage groove, the pressure of the spring to the extruding plate is used for limiting the position of the adjusting plate, so that the clamping block can not move in the clamping groove when the distribution box is moved.
6. According to the invention, the fixing device is arranged, the two adjusting plates are driven to move upwards when the extruding plate moves, and meanwhile, the two movable plates are moved in position, so that a user can conveniently and simultaneously adjust the positions of the two clamping blocks.
7. According to the invention, the sliding block and the sliding groove are arranged, the movable plate moves to drive the sliding block to move in the sliding groove, so that the friction force between the movable plate and the storage groove is reduced, and the movable plate is prevented from being blocked in the storage groove during movement.
8. According to the invention, the chamfer is arranged, so that the whole size of the clamping block can be reduced when the clamping block is moved to be in butt joint with the clamping groove, the effect of preventing false clamping during clamping of the clamping block is achieved, and the clamping block is convenient for a user to use.
9. According to the invention, the limiting machine and the limiting rod are arranged, when the extrusion plate moves to extrude the spring, the limiting rod completes limiting of the position of the extrusion plate, and the extrusion plate does not shake during moving.
10. According to the invention, the spring wire is tightly contacted with the second movable hole on the right side of the sealed insulating sleeve by arranging the second movable hole, so that the effect that external water vapor is not easy to enter the sealed insulating sleeve is achieved.
Drawings
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention;
FIG. 2 is a front cross-sectional view provided by an embodiment of the present invention;
FIG. 3 is a left side cross-sectional view provided by an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A provided by an embodiment of the present invention;
FIG. 5 is a partial enlarged view of embodiment of the present invention providing the view at B in FIG. 2;
fig. 6 is a partial enlarged view of fig. 2 at C provided by an embodiment of the present invention.
In the figure: 1. a distribution box; 2. placing a box; 3. closing the gate; 4. a first movable hole; 5. sealing the insulating sleeve; 6. a spring wire; 7. conducting magnetic disk; 8. a common magnet; 9. a conductive wire; 10. a moving hole; 11. a storage groove; 12. a positioning device; 13. a fixing device; 14. a through hole; 15. a clamping groove; 16. a flexible coil; 17. an empty pipe; 18. a plastic push block; 1201. an extrusion plate; 1202. a spring; 1203. a first rotating shaft; 1301. a movable plate; 1302. a clamping block; 1303. a second rotating shaft; 1304. an adjusting plate; 19. a slide block; 20. a chute; 21. chamfering; 22. a limiting hole; 23. a limit rod; 24. and a second movable hole.
Detailed Description
For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the leakage circuit breaking system of an electrical device provided by the embodiment of the invention comprises a distribution box 1, wherein a placement box 2 is fixedly connected to the right side of the distribution box 1, a closing gate 3 is fixedly connected to the rear side of the inner wall of the placement box 2, a first movable hole 4 is formed in the right side of the placement box 2, a sealing insulating sleeve 5 is movably connected to the inner cavity of the first movable hole 4, a spring wire 6 is movably connected to the inner cavity of the sealing insulating sleeve 5, a conductive magnetic disc 7 is fixedly connected to the left side of the spring wire 6, a common magnet 8 is movably connected to the left side of the conductive magnetic disc 7, a conductive wire 9 is fixedly connected to the right side of the placement box 2, a moving hole 10 is formed in the right side of the placement box 2, a storage groove 11 is formed in the left side of the moving hole 10, a positioning device 12 is movably connected to the inner cavity of the storage groove 11, fixing devices 13 are respectively arranged at the top and bottom of the positioning device 12, through holes 14 are respectively formed in the top and bottom of the first movable hole 4, and a clamping groove 15 is respectively formed in the top and bottom of the sealing insulating sleeve 5.
Referring to fig. 4, a flexible coil 16 is fixedly connected to the right side of the conductive wire 9, and the left side of the flexible coil 16 is fixedly connected to the spring wire 6.
The scheme is adopted: by arranging the flexible coil 16, the flexible coil 16 can keep the spring wire 6 and the conductive wire 9 in the electrified state all the time when the sealed insulating sleeve 5 moves, so that the sealed insulating sleeve is convenient for a user to use.
Referring to fig. 2, a hollow tube 17 is fixedly connected to the left side of the common magnet 8, and one side of the hollow tube 17, which is close to the inner wall of the sealing insulation sleeve 5, is in contact with the inner wall of the sealing insulation sleeve 5.
The scheme is adopted: by arranging the hollow tube 17, the hollow tube 17 has lighter weight, and the repulsive force between the conductive magnetic disc 7 and the common magnet 8 can enable the hollow tube 17 to be smoother when moving, so that the moving speed is high.
Referring to fig. 2, a plastic push block 18 is fixedly connected to the left side of the hollow tube 17, and one side of the plastic push block 18, which is close to the closing gate 3, is in contact with the closing gate 3.
The scheme is adopted: by arranging the plastic push block 18, the hollow pipe 17 moves to push the closing brake 3, and the plastic push block 18 balances the weight of the two sides of the hollow pipe 17, so that the hollow pipe 17 is more stable when moving.
Referring to fig. 3, the positioning device 12 includes a pressing plate 1201, a spring 1202 is fixedly connected to the rear side of the pressing plate 1201, and a first rotating shaft 1203 is movably connected to the top and bottom of the pressing plate 1201.
The scheme is adopted: by arranging the positioning device 12, when the adjusting plate 1304 is in the accommodating groove 11, the pressure of the spring 1202 to the extrusion plate 1201 completes the limit of the position of the adjusting plate 1304, and plays a role that the clamping block 1302 cannot move in the clamping groove 15 when the distribution box 1 is moved.
Referring to fig. 3, the fixing device 13 includes a movable plate 1301, a clamping block 1302 matched with the clamping groove 15 is fixedly connected to one side of the movable plate 1301 close to the through hole 14, one side of the clamping block 1302 close to the through hole 14 passes through the through hole 14 and extends to an inner cavity of the clamping groove 15, two opposite sides of the movable plate 1301 are respectively and movably connected with a second rotating shaft 1303, one side of the second rotating shaft 1303 close to the spring 1202 is fixedly connected with an adjusting plate 1304, and one side of the adjusting plate 1304 close to the first rotating shaft 1203 is fixedly connected with the first rotating shaft 1203.
The scheme is adopted: by arranging the fixing device 13, the extrusion plate 1201 drives the two adjusting plates 1304 to move upwards when moving, and simultaneously, the two movable plates 1301 are moved in position, so that a user can conveniently and simultaneously adjust the positions of the two clamping blocks 1302.
Referring to fig. 3, the front side and the rear side of the movable plate 1301 are fixedly connected with a sliding block 19, a sliding groove 20 matched with the sliding block 19 is formed on one side of the storage groove 11 close to the sliding block 19, and one side of the sliding block 19 close to the inner wall of the sliding groove 20 is in contact with the inner wall of the sliding groove 20.
The scheme is adopted: through setting up slider 19 and spout 20, movable plate 1301 removes and drives slider 19 and remove in spout 20, has reduced the frictional force between movable plate 1301 and the storage tank 11, has played the effect that movable plate 1301 can not take place the card dead in storage tank 11 when removing.
Referring to fig. 3, the front and rear sides of the clamping block 1302 are provided with chamfers 21, and one side of the chamfers 21, which is close to the inner wall of the clamping groove 15, is in contact with the inner wall of the clamping groove 15.
The scheme is adopted: through setting up chamfer 21, fixture block 1302 is moving when docking with draw-in groove 15, and chamfer 21 can reduce the whole size of fixture block 1302, can not take place the effect of mistake card when having played fixture block 1302 joint, convenient to use person uses.
Referring to fig. 3, a limiting hole 22 is formed in the front side of the extrusion plate 1201, a limiting rod 23 matched with the limiting hole 22 is fixedly connected to one side, close to the limiting hole 22, of the storage groove 11, and one side, close to the inner wall of the limiting hole 22, of the limiting rod 23 is in contact with the inner wall of the limiting hole 22.
The scheme is adopted: through setting up stop washer and gag lever post 23, when extrusion plate 1201 removed extrusion spring 1202, gag lever post 23 had accomplished the spacing to extrusion plate 1201 position, had played extrusion plate 1201 can not take place the effect of rocking when removing.
Referring to fig. 4, a second movable hole 24 is formed on the right side of the sealing insulating sleeve 5, and one side of the spring wire 6, which is close to the inner wall of the second movable hole 24, is in contact with the inner wall of the second movable hole 24.
The scheme is adopted: through setting up second movable hole 24, spring wire 6 and the second movable hole 24 in close contact of sealed insulating cover 5 right side have played the inside effect of the difficult entering sealed insulating cover 5 of external steam.
The working principle of the invention is as follows:
when the electric power distribution cabinet is used, the extrusion plate 1201 extrudes the spring 1202 and drives the adjustment plate 1304 to move, the adjustment plate 1304 moves to extrude the movable plate 1301 to move, the movable plate 1301 moves to drive the clamping block 1302 to move to the through hole 14, then the sealing insulating sleeve 5 is pushed to be in contact with the closing gate 3, the extrusion plate 1201 is loosened, elastic deformation of the spring 1202 drives the extrusion plate 1201 to return to the original position, the extrusion plate 1201 moves to drive the adjustment plate 1304 to pull the movable plate 1301 to return to the original position, the movable plate 1301 moves to drive the clamping block 1302 to pass through the through hole 14 to the clamping groove 15, the position of the sealing insulating sleeve 5 is fixed, when electric leakage occurs in the electric power distribution cabinet 1, the electric current of the outer shell of the electric power distribution cabinet 1 can enter the soft coil 16 through the electric wire 9, the electricity in the soft coil 16 can be transmitted to the spring wire 6, the electric power in the spring wire 6 is transmitted to the conductive magnetic disc 7 to enable the electric power in the conductive magnetic disc 7, the magnetic force in the conductive magnetic disc 7 is mutually exclusive with the common magnet 8 on the left side of the hollow tube 17, the repulsive force can drive the plastic push block 18 on the left side of the hollow tube 17 to push the closing gate 3 to be closed, the electric power is closed, and the electric power is conveniently used by a user.
To sum up: according to the leakage circuit breaking system of the electrical equipment, the closing gate 3, the first movable hole 4, the sealed insulating sleeve 5, the spring wire 6, the conductive magnetic disc 7, the common magnet 8, the conductive wire 9, the positioning device 12, the fixing device 13 and the clamping groove 15 are matched for use, electric energy in the spring wire 6 is transmitted to the conductive magnetic disc 7 to enable the conductive magnetic disc 7 to generate magnetism, the magnetic force in the conductive magnetic disc 7 and the common magnet 8 on the left side of the empty pipe 17 repel each other, the repulsive force can drive the plastic push block 18 on the left side of the empty pipe 17 to push the closing gate 3 valve, closing of the power distribution cabinet is completed, the problem that the current is led into the metal shell of the power distribution cabinet once surrounding pedestrians touch the inside carelessly to easily cause electric shock body death is solved, and the leakage circuit breaking system of the electrical equipment has the advantage of preventing leakage and is worth popularizing.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. An electric leakage circuit breaking system of an electrical apparatus, comprising a distribution box (1), characterized in that: the right side fixedly connected with of block terminal (1) places box (2), the rear side fixedly connected with of placing box (2) inner wall closes floodgate (3), first movable hole (4) have been seted up on the right side of placing box (2), the inner chamber swing joint of first movable hole (4) has sealed insulating sleeve (5), the inner chamber swing joint of sealed insulating sleeve (5) has spring wire (6), the left side fixedly connected with electric conduction magnetic conduction dish (7) of spring wire (6), the left side swing joint of electric conduction magnetic conduction dish (7) has ordinary magnet (8), the right side fixedly connected with electric wire (9) of placing box (2), moving hole (10) have been seted up on the right side of placing box (2), storage groove (11) have been seted up on the left side of moving hole (10), the inner chamber swing joint of storage groove (11) has positioner (12), the top and the bottom of positioner (12) all are provided with fixing device (13), the top of first movable hole (4) and bottom fixedly connected with electric conduction magnetic conduction dish (7), electric conduction line (16) have all been seted up at the top and have soft insulating sleeve (15), the left side of the soft coil (16) is fixedly connected with a spring wire (6), the left side of the common magnet (8) is fixedly connected with an empty tube (17), one side of the empty tube (17) close to the inner wall of the sealed insulating sleeve (5) is in contact with the inner wall of the sealed insulating sleeve (5), the left side of the empty tube (17) is fixedly connected with a plastic push block (18), one side of the plastic push block (18) close to the closing brake (3) is in contact with the closing brake (3), the positioning device (12) comprises a pressing plate (1201), the rear side of the pressing plate (1201) is fixedly connected with a spring (1202), the top and the bottom of the pressing plate (1201) are both movably connected with a first rotating shaft (1203), the fixing device (13) comprises a movable plate (1301), one side of the movable plate 1301 close to the through hole (14) is fixedly connected with a clamping block (1302) matched with a clamping groove (15), one side of the clamping block (14) close to the through hole (14) extends to the inner cavity (15) to the closing brake (3), two opposite rotating shafts (1303) are both movably connected with the first rotating shafts (1303) and the two opposite rotating shafts (1303) are both movably connected with the first rotating shafts (1303), the adjustable wire guide device comprises an adjusting plate (1304), a clamping groove (15), a limiting hole (22), a limiting rod (23), a sealing insulating sleeve (5), a second wire guide hole (24) and a second wire guide hole (24), wherein one side of the adjusting plate (1304), close to the first rotating shaft (1203), is fixedly connected with the first rotating shaft (1203), the sliding block (19) is fixedly connected to the front side and the rear side of the movable plate (1301), one side of the accommodating groove (11), close to the sliding block (19), is provided with the sliding groove (20) matched with the sliding block (19), one side of the sliding block (19), close to the inner wall of the sliding groove (20), is contacted with the inner wall of the sliding groove (20), the front side and the rear side of the clamping block (1302) are respectively provided with a chamfer (21), one side of the chamfer (21), close to the inner wall of the clamping groove (15), is contacted with the inner wall of the clamping groove (15), one side of the pressing plate (1201) is provided with the limiting hole (22), one side of the accommodating groove (11), close to the limiting hole (22) is fixedly connected with the limiting rod (23) matched with the limiting hole (22), one side of the limiting rod (23), one side, close to the inner wall of the limiting hole (22), is contacted with the inner wall of the sliding hole (20), and the inner wall of the sliding wire guide hole (5), and the right side of the second wire guide hole (24) is arranged on the right, and the second wire guide hole 6 is contacted with the second side of the second wire guide hole 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456940.3A CN112531640B (en) | 2020-12-13 | 2020-12-13 | Leakage circuit breaking system of electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456940.3A CN112531640B (en) | 2020-12-13 | 2020-12-13 | Leakage circuit breaking system of electrical equipment |
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| Publication Number | Publication Date |
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| CN112531640A CN112531640A (en) | 2021-03-19 |
| CN112531640B true CN112531640B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011456940.3A Active CN112531640B (en) | 2020-12-13 | 2020-12-13 | Leakage circuit breaking system of electrical equipment |
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| CN (1) | CN112531640B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114821923B (en) * | 2022-04-05 | 2023-09-29 | 郑州电力职业技术学院 | Electrical system early warning control device applied to large road maintenance machinery |
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2020
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| JP3086462U (en) * | 2000-12-05 | 2002-06-21 | エルジー産電株式会社 | Earth leakage breaker |
| KR20080112092A (en) * | 2007-06-19 | 2008-12-24 | 후지 덴키 기기세이교 가부시끼가이샤 | Wiring circuit breaker having leakage alarm |
| CN108879389A (en) * | 2018-08-23 | 2018-11-23 | 江阴市长泾车船附件有限公司 | AC low voltage power switch box |
| CN210113679U (en) * | 2019-06-21 | 2020-02-25 | 湖南京铁电气有限公司 | High block terminal of security |
| CN212011784U (en) * | 2020-05-18 | 2020-11-24 | 江苏川力电气有限公司 | Block terminal with power-off protection device |
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| CN112531640A (en) | 2021-03-19 |
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