CN2488166Y - Low-voltage vacuum circuit breaker with permanent magnetic operating mechanism - Google Patents
Low-voltage vacuum circuit breaker with permanent magnetic operating mechanism Download PDFInfo
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- CN2488166Y CN2488166Y CN 01206951 CN01206951U CN2488166Y CN 2488166 Y CN2488166 Y CN 2488166Y CN 01206951 CN01206951 CN 01206951 CN 01206951 U CN01206951 U CN 01206951U CN 2488166 Y CN2488166 Y CN 2488166Y
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- operating mechanism
- permanent
- circuit breaker
- excitation coil
- switch tube
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Abstract
The utility model discloses a low-voltage vacuum circuit breaker with permanent magnetic operating mechanism, and relates to the electricity supplying and distributing devices. The utility model is used to solve the prior circuit breaker problems of poor reliability, short life span, a complex structure and big production difficulty. The utility model comprises a vacuum switch tube (6), a permanent magnetic operating mechanism (15), and a controller, wherein the permanent magnetic operating mechanism comprises a magnetic yoke plate (17), an upper excitation coil (18) and a lower excitation coil (19) which are in electric connections with the controller, and a permanent magnet (20) between the upper excitation coil and the lower excitation coil, and the insides of the upper excitation coil and the lower excitation coil are provided with a slidable iron core (21) and a guiding rod (22) connected with the vacuum switch tube. The utility model applies to the electricity on-and-off control on explosive and inflammable occasions such as petro-chemical, coal mine, textile and mining areas as well as grain processing, etc.
Description
Technical field
The utility model relates to for the distribution device, special low-voltage vacuum circuit breaker.Low-voltage vacuum circuit breaker is that main contact breaks or closed a kind of tie breaker at high vacuum environment.
Background technology
The heart vacuum switch tube of vacuum circuit-breaker by the fixed contact assembly, be coaxial line with the fixed contact assembly and cut-off the closed moving contact component that cooperates, the insulation crust formation of encapsulation fixed contact assembly and moving contact component.Be 10 in the shell
-3～10
-4The vacuum of Pa.Fixed contact assembly and moving contact component are connected with circuit respectively with moving conductive rod through static conductive rod separately, and moving conductive rod is connected with operating mechanism.The moving conductive rod of vacuum switch tube moves at the effect lower edge of operating mechanism axis, can realize cut-offfing with closed of circuit breaker.
At present, the main spring operation that adopts of deciliter manipulation of low-voltage vacuum circuit breaker, air circuit has structures such as Extension Spring-type, compressed spring type.Spring operation is converted to the potential energy of spring through lever construction, cam mechanism with electric energy and manpower energy under electronic or manual control, through the tripping mechanism retracting spring energy of cam mechanism and spring, through back-moving spring mechanism is resetted and handle circuit breaker again.Spring operation though be widely used at present in the mesolow circuit breaker, exist and much to be difficult to the problem that overcomes.One is that the life-span is shorter, and the mechanical endurance of spring operation, generally about 3000～5000 times, when surpassing this lifetime limitation, the reliability of mechanism reduced, and causes misoperation easily at present; Its two, the complex structure of assembly needs special manufacturing process and guarantees during manufacturing; Its three, the complex structure of mechanism, component count is many, the assembling link more, reduced the reliability of mechanism.
The utility model content
The purpose of this utility model is to provide a kind of use reliable, long, simple in structure, the easy to manufacture low-voltage vacuum circuit breaker of joining permanent-magnet operating mechanism of life-span.
The utility model adopts permanent-magnet operating mechanism to replace spring operation and realizes its purpose on the basis of existing circuit breaker.
Low-voltage vacuum circuit breaker (referring to accompanying drawing) of joining permanent-magnet operating mechanism of the present utility model, comprise vacuum switch tube (6), permanent-magnet operating mechanism (15) and controller thereof, permanent-magnet operating mechanism has yoke plate (17), and yoke plate is connected and and the controller last magnetizing coil (18) and following magnetizing coil (19) and the permanent magnet between the two (20) that electrically connect, be set with iron core (21) and guide rod (22) thereof slidably in last magnetizing coil and the following magnetizing coil, guide rod links to each other with the moving conductive rod (11) of vacuum switch tube.
Above-mentioned yoke plate (17) is contained on the frame (16), is hinged with lever (25) on the frame, and the two ends of lever link to each other with guide rod (22) with juxtaposed moving conductive rod (11) respectively.
Above-mentioned moving conductive rod (11) links to each other with lever (25) through insulation connecting rod (13), and guide rod (22) links to each other with lever through connecting rod (23).
Above-mentioned frame (16) is fixed with insulating support (1), be fixed with the quiet end busbar (4) and the moved end busbar (5) that can connect on the insulating support with circuit, the static conductive rod (10) of above-mentioned vacuum switch tube (6) and quiet end busbar (4) electricity are connected, and the support holes (14) of moving conductive rod (11) and moved end busbar (5) is and is slidingly matched and electrically connects through flexible link (12) and moved end busbar (5).
Use the utility model, vacuum switch tube is inserted the Be Controlled circuit, and with the power on/off of the magnetizing coil up and down of controller control permanent-magnet operating mechanism, it is reciprocating to drive iron core, the moving conductive rod that drives vacuum switch tube is reciprocating, disconnection, the closure of control vacuum switch tube.
The utility model has following advantage and effect compared with prior art.
One, permanent-magnet operating mechanism of the present utility model is more simple in structure than the spring operation, and number of spare parts is few, approximately is 70% of spring operation, the shape and structure of part is fairly simple, is easy to design and manufacturing, therefore, have low cost of manufacture, dependable performance, advantages such as long service life.
Two, permanent-magnet operating mechanism of the present utility model has the big characteristics of confining force, therefore makes circuit breaker have the big advantage of drop-out current.
The utility model is applicable to that the electric power of inflammable and explosive occasions such as petrochemical industry, colliery, weaving, mine, grain processing cut-offs control.
Below, the utility model is further described to use embodiment and accompanying drawing thereof again.
Description of drawings
Accompanying drawing is a kind of structural representation of joining the low-voltage vacuum circuit breaker of permanent-magnet operating mechanism of the present utility model.
Embodiment
A kind of low-voltage vacuum circuit breaker of joining permanent-magnet operating mechanism of the present utility model, as shown in drawings.Constitute by insulating support, vacuum switch tube, permanent magnet mechanism etc.
Above-mentioned insulating support 1 adopts common insulating material to make plate shape.Be used for of the fixed installation of this circuit breaker at controlled circuit.End at insulating support is fixed with connector 3 with screw 2.Again with the be connected quiet end busbar 4 of plane plate shape of common structure of screw 2, a side of quiet end busbar and controlled circuit is and electrically connects.With quiet end busbar at a distance of suitable distance with the be connected moved end busbar 5 of L plate shape of common structure of screw 2, the opposite side of moved end busbar and controlled circuit is and electrically connects.
Above-mentioned vacuum switch tube 6 adopts common structure, by fixed contact assembly 7 be coaxial line with the fixed contact assembly and cut-off the closed moving contact component 8 that cooperates, encapsulates insulation crust 9 formations such as grade of said modules.The static conductive rod 10 and the quiet end busbar 4 usefulness screws 2 of fixed contact assembly 7 are connected and are and electrically connect.The moving conductive rod 11 of moving contact component 8 is solid and be and electrically connect with the end cover of the flexible link 12 of structure usually, and the other end of flexible link is with screw 2 and moved end busbar 5 and electrically connects.The insulated connecting rod 13 that the common structure that is connected with moving conductive rod 11 is arranged, the rod end of the circular bar shape of insulated connecting rod one end are the support holes 14 that runs through the moved end busbar movingly and are being threaded of concentricity line with moving conductive rod; The rod end of the insulated connecting rod other end stretches out with permanent-magnet operating mechanism and links to each other.
Above-mentioned permanent-magnet operating mechanism 15 is with vacuum switch tube 6 and the formula of putting is arranged, the frame 16 of the shaped as frame that useful screw 2 and insulating support 1 are connected.The yoke plate 17 of common structure is installed on the frame.The yoke plate central part is fixed with last magnetizing coil 18 and the following magnetizing coil 19 that is the concentricity line layout of the common structure that electrically connects with controller (showing expression among the figure).Between last magnetizing coil and following magnetizing coil, the permanent magnet 20 that is packed in the common structure on the yoke plate is arranged.In last magnetizing coil and following magnetizing coil, be set with the iron core 21 of common structure slidably, the guide rod 22 of iron core and circular bar shape is the integrative-structure of concentricity line, and the guide rod 22 and the central axis of vacuum switch tube 6 are parallel to each other.Lower end of the guide rod is connected with connecting rod 23 with common structure.On frame 16, be hinged with lever 25, an end of the lever other end of hinge 23 hinge connecting rods 23, the other end of the lever other end of the above-mentioned insulated connecting rod 13 of hinge 23 hinges with hinge 24.Constitute the serial verb construction of vacuum switch tube and permanent-magnet operating mechanism.Thereby constitute this circuit breaker.
This permanent-magnet operating mechanism adopts bistable state magnetic circuit system, with two magnetizing coil 18,19 driving iron cores 21 are reciprocating together with guide rod 22 up and down.The magnetic field energy that permanent magnet 20 provides makes iron core remain on extreme position.Excite one of them magnetizing coil, make it to produce actuating force, can make the iron core action of permanent-magnet operating mechanism greater than the residue confining force.
The operating principle of this circuit breaker is as follows: under the control of controller, during magnetizing coil 19 energisings instantly, following magnetizing coil drives iron core 21 and moves downward together with guide rod 22, guide rod promotes lever 25 through connecting rod 23 and clockwise rotates, the lever other end promotes insulated connecting rod 13 and moves upward together with moving conductive rod 11, makes vacuum switch tube 6 closures; Otherwise when last magnetizing coil 18 was switched on, iron core 21 and guide rod 22 moved upward, and lever 24 inhours are rotated, and promote moving conductive rod 11 and move downward, and vacuum switch tube 6 disconnects.
Claims (4)
- The low-voltage vacuum circuit breaker of 1, joining permanent-magnet operating mechanism, comprise vacuum switch tube (6), it is characterized in that permanent-magnet operating mechanism is arranged (15) and controller thereof, permanent-magnet operating mechanism has yoke plate (17), and yoke plate is connected and and the controller last magnetizing coil (18) and following magnetizing coil (19) and the permanent magnet between the two (20) that electrically connect, be set with iron core (21) and guide rod (22) thereof slidably in last magnetizing coil and the following magnetizing coil, guide rod links to each other with the moving conductive rod (11) of vacuum switch tube.
- 2, low-voltage vacuum circuit breaker of joining permanent-magnet operating mechanism according to claim 1, it is characterized in that said yoke plate (17) is contained on the frame (16), be hinged with lever (25) on the frame, the two ends of lever link to each other with guide rod (22) with juxtaposed moving conductive rod (11) respectively.
- 3, low-voltage vacuum circuit breaker of joining permanent-magnet operating mechanism according to claim 2 is characterized in that said moving conductive rod (11) links to each other with lever (25) through insulation connecting rod (13), and guide rod (22) links to each other with lever through connecting rod (23).
- 4, according to claim 2 or 3 described low-voltage vacuum circuit breakers of joining permanent-magnet operating mechanism, it is characterized in that the insulating support (1) that is connected with frame (16) is arranged, be fixed with the quiet end busbar (4) and the moved end busbar (5) that can connect on the insulating support with circuit, the static conductive rod (10) of said vacuum switch tube (6) and quiet end busbar (4) electricity are connected, and the support holes (14) of moving conductive rod (11) and moved end busbar (5) is and is slidingly matched and electrically connects through flexible link (12) and moved end busbar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206951 CN2488166Y (en) | 2001-07-24 | 2001-07-24 | Low-voltage vacuum circuit breaker with permanent magnetic operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206951 CN2488166Y (en) | 2001-07-24 | 2001-07-24 | Low-voltage vacuum circuit breaker with permanent magnetic operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2488166Y true CN2488166Y (en) | 2002-04-24 |
Family
ID=33627496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01206951 Expired - Fee Related CN2488166Y (en) | 2001-07-24 | 2001-07-24 | Low-voltage vacuum circuit breaker with permanent magnetic operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2488166Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306589A (en) * | 2011-05-31 | 2012-01-04 | 北京博瑞莱智能科技有限公司 | Low-pressure permanent magnetic vacuum load switch |
| CN103198967A (en) * | 2013-03-27 | 2013-07-10 | 苏州长量电器有限公司 | Intelligent low-voltage vacuum circuit breaker |
-
2001
- 2001-07-24 CN CN 01206951 patent/CN2488166Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306589A (en) * | 2011-05-31 | 2012-01-04 | 北京博瑞莱智能科技有限公司 | Low-pressure permanent magnetic vacuum load switch |
| CN102306589B (en) * | 2011-05-31 | 2014-01-01 | 北京博瑞莱智能科技有限公司 | Low-pressure permanent magnetic vacuum load switch |
| CN103198967A (en) * | 2013-03-27 | 2013-07-10 | 苏州长量电器有限公司 | Intelligent low-voltage vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |