CN204407268U - A kind of miniature circuit breaker switching off/on device - Google Patents
A kind of miniature circuit breaker switching off/on device Download PDFInfo
- Publication number
- CN204407268U CN204407268U CN201520145437.4U CN201520145437U CN204407268U CN 204407268 U CN204407268 U CN 204407268U CN 201520145437 U CN201520145437 U CN 201520145437U CN 204407268 U CN204407268 U CN 204407268U
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- CN
- China
- Prior art keywords
- circuit breaker
- connecting rod
- miniature circuit
- connects
- combined floodgate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to intelligent electrically power distribution system technology field, specifically a kind of miniature circuit breaker switching off/on device, its drive motors connects first connecting rod successively by driving member, second connecting rod and the first combined floodgate conducting piece, the first described combined floodgate conducting piece coaxially connects the second combined floodgate conducting piece, second combined floodgate conducting piece connects third connecting rod and snap close piece respectively, described third connecting rod connects two operator links respectively by combined floodgate output, two operator links connect four atomic type circuit breaker handles respectively, four atomic type circuit breaker handles connect drive motors by sensitive switch, described snap close piece connects dropout part, dropout part respectively with first connecting rod, second connecting rod is connected with the first combined floodgate conducting piece.The utility model has used quadric chain technology to close a floodgate to miniature circuit breaker, and shunt opening and double leval jib promote, together with combine with technique, to serve and can carry out reliable divide-shut brake to miniature circuit breaker by the structure having recycled miniature circuit breaker itself.
Description
[technical field]
The utility model relates to intelligent electrically power distribution system technology field, specifically a kind of miniature circuit breaker switching off/on device.
[background technology]
Miniature circuit breaker, being called for short MCB, is most popular a kind of terminal protection electrical equipment during architectural electricity terminal power distribution draws, for the protection such as short circuit, overload, overvoltage of single-phase, the three-phase of below 125A.Miniature circuit breaker is made up of operating mechanism, contact, protective device, arc quenching system etc.Its main contacts is by manual operation or electric switch-on.After main contacts is closed, main contacts is locked on closing position by free tripping mechanism.The coil of overcurrent trip and the thermal element of thermal overload release are connected with main circuit, the coil of under-voltage release and power sources in parallel.When circuit be short-circuited or heavy overload time, the armature adhesive of overcurrent trip, makes free tripping mechanism action, main contacts disconnect main circuit.When circuit overloads, the thermal element heating of thermal overload release makes on bimetal leaf bending, promotes free tripping mechanism action.When circuit under voltage, the armature release of under-voltage release, also makes free tripping mechanism action.
The divide-shut brake of present miniature circuit breaker is add gear drive speed decreasing mechanism with large-scale electromagnet or motor directly to drive the operating grip of miniature circuit breaker to carry out deciliter substantially.Electromagnet mechanism profile is huge, and combined floodgate impulsive force is large, easily damages miniature circuit breaker; Motor adds gear drive speed decreasing mechanism and can not return in time after combined floodgate, if miniature circuit breaker is short-circuited fault after combined floodgate puts in place, miniature circuit breaker operator will damage motor add gear drive speed decreasing mechanism returning fast, if be transmitted speed decreasing mechanism to block, just miniature circuit breaker is damaged the serious arcing of generation.
[utility model content]
The purpose of this utility model is exactly easily to be short-circuited phenomenon in miniature circuit breaker moment of closing a floodgate to solve in prior art switching-on mechanism, miniature circuit breaker handle can not fast return and damage deficiency and the defect of mechanism, a kind of novel structure is provided, safe and reliable, can the easy and miniature circuit breaker switching off/on device of safety trip and reset, comprise operating mechanism and miniature circuit breaker, described operating mechanism comprises: drive motors, worm screw, connecting rod, gear, drive motors connects first connecting rod successively by driving member, second connecting rod and the first combined floodgate conducting piece, the first described combined floodgate conducting piece coaxially connects the second combined floodgate conducting piece, second combined floodgate conducting piece connects third connecting rod and snap close piece respectively, described third connecting rod connects two operator links respectively by combined floodgate output, two operator links connect miniature circuit breaker handle respectively, miniature circuit breaker handle connects drive motors by the first sensitive switch, described snap close piece connects dropout part, dropout part respectively with first connecting rod, second connecting rod is connected with the first combined floodgate conducting piece.
Described snap close piece also connects shunt opening push rod by connecting rod, and shunt opening push rod connects shunt opening electromagnet and level Four miniature circuit breaker handle respectively.
Described driving member coaxially connects turning wheel, and described turning wheel connects drive motors by the second sensitive switch.
Described driving member comprises worm screw, the first gear, the second gear, the 3rd gear and connecting rod, and described turning wheel is coaxially connected on the 3rd gear.
The utility model compared with the existing technology, its advantage is that the utility model has used quadric chain technology to close a floodgate to miniature circuit breaker, shunt opening and double leval jib promote, together with combine with technique, to serve and can carry out reliable divide-shut brake to miniature circuit breaker by the structure having recycled miniature circuit breaker itself.The utility model volume, as a two-stage miniature circuit breaker size, can be installed with miniature circuit breaker side by side, also can not affect miniature circuit breaker simultaneously and be arranged on normal use in other various switch-box.The maximum improvement of the utility model is that quadric chain thrust makes zero after closing a floodgate by miniature circuit breaker at once, and be exactly now the phenomenon that is short-circuited instantaneously after miniature circuit breaker closes a floodgate, the divide-shut brake hand of miniature circuit breaker is also resetting freely.Utilization of the present utility model can make the scope of application of existing miniature circuit breaker expand; utilize the electron controls technology that operating mechanism is built-in, by have the time-sharing electricity meter of short-circuit protection function and many rates ammeter control miniature circuit breaker, automatic reclosing miniature circuit breaker, under-voltage overvoltage protection miniature circuit breaker, the residual current monitoring micro detector with short-circuit protection, miniaturized dual-power transfer switch equipment, intelligent household switchboard design to use or other remote auto controls miniature circuit breaker and all will become a reality.
[accompanying drawing explanation]
Fig. 1 is the operating mechanism start bit Facad structure schematic diagram in the utility model embodiment;
Fig. 2 is the operating mechanism closing position Facad structure schematic diagram in the utility model embodiment;
Fig. 3 is the operating mechanism stereogram Facad structure schematic diagram in the utility model embodiment;
Fig. 4 is the operating mechanism start bit structure schematic diagram in the utility model embodiment;
Fig. 5 is the operating mechanism closing position structure schematic diagram in the utility model embodiment;
Fig. 6 is the operating mechanism stereogram structure schematic diagram in the utility model embodiment;
Fig. 7 is the operating mechanism in the utility model embodiment and the structural representation after miniature circuit breaker assembling;
Fig. 8 is the operating mechanism in the utility model embodiment and another status architecture schematic diagram after miniature circuit breaker assembling;
Fig. 9 is operating mechanism in the utility model embodiment and miniature circuit breaker decomposing schematic representation;
Figure 10 is another angled arrangement schematic diagram of the utility model Fig. 9;
Figure 11 is that the utility model Fig. 9 closes a floodgate another angled arrangement schematic diagram of axle 12;
Figure 12 is another angled arrangement schematic diagram of 4 pole miniature circuit breaker shunt opening points in the utility model Figure 10;
As shown in the figure, in figure: 1. drive motors 2. worm screw 3. first gear 4. second gear 5. the 3rd gear 6. connecting rod 7. first connecting rod 8. second connecting rod 9. first combined floodgate conducting piece 10. part 11. snap close piece 12. axle 13. snap close piece poke rod 14. second combined floodgate conducting piece 15. third connecting rod 16. that closes a floodgate of threading off closes a floodgate output 17. first sensitive switch 18. shunt opening push rod 20. shunt opening electromagnet 21. second sensitive switch 22. turning wheel 23. operator link 25. operating mechanism 26. 4 pole miniature circuit breaker;
Fig. 1 is specified to be Figure of abstract of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
One, miniature circuit breaker making process
As shown in Figure 1, under initial state, drive motors rotates forward and drives worm screw, drives the first gear to rotate counterclockwise by worm screw, and after the engaged transmission of the second gear and the 3rd gear, the 3rd gear rotates counterclockwise.Because the 3rd gear rotates counterclockwise, thus promotion connecting rod moves upward and promotes first connecting rod upwards clockwise movement, and first connecting rod has promoted second connecting rod further and promoted to upper right.Second connecting rod has also directly driven the first combined floodgate conducting piece to do clockwise rotation to upper right motion.
Because the first combined floodgate conducting piece is coaxial with the second combined floodgate conducting piece, the second combined floodgate conducting piece is driven to rotate counterclockwise by the first combined floodgate conducting piece, as shown in Figure 4.The output that closes a floodgate after the second combined floodgate conducting piece drives third connecting rod rotates counterclockwise simultaneously.Combined floodgate output drives two operator links to be rotated counterclockwise simultaneously, simultaneously be connected with two operator links four atomic type circuit breaker handles rotate, simultaneously also make the first sensitive switch action and disconnect the working power of drive motors, at this moment just completing the feed motion of miniature circuit breaker.
While completing feed motion, second combined floodgate conducting piece also drives snap close piece poke rod to do clockwise movement, as shown in Figure 5, snap close piece poke rod coaxially drives snap close piece 11 to rotate counterclockwise, as shown in Figure 2, because snap close piece 11 rotates counterclockwise, dropout part 10 unlocks, and makes the four-bar linkage structure be made up of first connecting rod, second connecting rod, the first combined floodgate conducting piece and dropout part 10 lose balance support.Because four-bar linkage structure loses balance support, close a floodgate put in place after the operating grip of miniature circuit breaker just can free shunted exciter tripping, now miniature circuit breaker completes feed motion, as shown in Figure 2, Figure 4 shows.The switching-on mechanism that this performance overcomes other non-invention miniature circuit breaker close a floodgate be short-circuited phenomenon instantaneously time, miniature circuit breaker handle can not fast return and damage this major defect of mechanism.
After completing making process, drive motors 1 reverses and drives worm screw 2, drives the 3rd gear 5 to rotate clockwise by worm screw 2, and after the engaged transmission of the second gear 4 and the 3rd gear 5, the 3rd gear 5 rotates clockwise.Because the 3rd gear 5 rotates clockwise, thus pull connecting rod 6 to move downward and pull the downward counterclockwise movement of first connecting rod, first connecting rod has pulled second connecting rod direction motion to left down further.The motion in second connecting rod direction to left down has directly driven the first combined floodgate conducting piece to do counter-clockwise rotary motion.First combined floodgate conducting piece arrives operating mechanism start bit, as shown in Figure 1.
Meanwhile, connecting rod 6 pulls first connecting rod, and first connecting rod promotes dropout part 10 and rotates counterclockwise, dropout part 10 rotates counterclockwise and is again pinned by snap close piece 11, as shown in Figure 1, simultaneously and the coaxial turning wheel 22 of the 3rd gear 5 stir the second sensitive switch 21 action, disconnection drive motors 1.This time miniature circuit breaker in "on" position operating mechanism in start bit, for next time to miniature circuit breaker close a floodgate ready.
Two, miniature circuit breaker shunt opening process
During miniature circuit breaker shunt opening, pull shunt opening push rod 18 by shunt opening electromagnet 20, namely the shunt opening point being stirred miniature circuit breaker 26 by shunt opening push rod 18 can make miniature circuit breaker 26 shunt opening.
While miniature circuit breaker 26 shunt opening, shunt opening push rod 18 pulls connecting rod 6 to the right, as shown in Figure 5, is rotated counterclockwise by connecting rod machine driving, and connecting rod 6 rotates counterclockwise lower collision snap close piece poke rod and rotates clockwise, as shown in Figure 5.The snap close piece 11 coaxial with snap close piece poke rod rotates counterclockwise, as shown in Figure 2, because snap close piece 11 rotates counterclockwise, dropout part 10 is threaded off, at this moment the double leval jib be made up of first connecting rod, second connecting rod, the first combined floodgate conducting piece and dropout part 10 unlocks, and the object of unblock prevents from closing a floodgate in the misoperation of miniature circuit breaker in shunt opening process.
Claims (4)
1. a miniature circuit breaker switching off/on device, comprise operating mechanism (25) and miniature circuit breaker, described operating mechanism comprises drive motors (1), worm screw (2), connecting rod (6), gear, it is characterized in that described drive motors (1) connects first connecting rod (7) successively by driving member, second connecting rod (8) and the first combined floodgate conducting piece (9), the first described combined floodgate conducting piece (9) coaxially connects the second combined floodgate conducting piece (14), second combined floodgate conducting piece connects third connecting rod (15) and snap close piece (11) respectively, described third connecting rod connects two operator links (23) respectively by combined floodgate output (16), two operator links connect miniature circuit breaker handle respectively, miniature circuit breaker handle connects drive motors by the first sensitive switch, described snap close piece (11) connects dropout part (10), dropout part respectively with first connecting rod (7), second connecting rod (8) is connected with the first combined floodgate conducting piece (9).
2. a kind of miniature circuit breaker switching off/on device as claimed in claim 1, it is characterized in that described snap close piece (11) also connects shunt opening push rod (18) by connecting rod (6), shunt opening push rod connects shunt opening electromagnet (20) and level Four miniature circuit breaker handle respectively.
3. a kind of miniature circuit breaker switching off/on device as claimed in claim 1, it is characterized in that described driving member coaxially connecting turning wheel (22), described turning wheel (22) connects drive motors (1) by the second sensitive switch (21).
4. a kind of miniature circuit breaker switching off/on device as claimed in claim 3, it is characterized in that described driving member comprises worm screw (2), the first gear (3), the second gear (4), the 3rd gear (5) and connecting rod (6), described turning wheel (22) is coaxially connected on the 3rd gear (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520145437.4U CN204407268U (en) | 2015-03-13 | 2015-03-13 | A kind of miniature circuit breaker switching off/on device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520145437.4U CN204407268U (en) | 2015-03-13 | 2015-03-13 | A kind of miniature circuit breaker switching off/on device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204407268U true CN204407268U (en) | 2015-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520145437.4U Expired - Fee Related CN204407268U (en) | 2015-03-13 | 2015-03-13 | A kind of miniature circuit breaker switching off/on device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204407268U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070608A (en) * | 2015-08-12 | 2015-11-18 | 宏秀电气有限公司 | Working method of automatic switching-off/switching-on small circuit breaker |
| CN107452570A (en) * | 2017-09-01 | 2017-12-08 | 南京日新科技有限公司 | A kind of operating mechanism of four link type reclosing breaker |
| CN107845513A (en) * | 2017-12-07 | 2018-03-27 | 西门子中压开关技术（无锡）有限公司 | Motor-operating mechanism and switching device |
-
2015
- 2015-03-13 CN CN201520145437.4U patent/CN204407268U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070608A (en) * | 2015-08-12 | 2015-11-18 | 宏秀电气有限公司 | Working method of automatic switching-off/switching-on small circuit breaker |
| CN107452570A (en) * | 2017-09-01 | 2017-12-08 | 南京日新科技有限公司 | A kind of operating mechanism of four link type reclosing breaker |
| CN107452570B (en) * | 2017-09-01 | 2020-09-18 | 厦门国研科技有限公司 | Operating mechanism of four-connecting-rod type reclosing circuit breaker |
| CN107845513A (en) * | 2017-12-07 | 2018-03-27 | 西门子中压开关技术（无锡）有限公司 | Motor-operating mechanism and switching device |
| CN107845513B (en) * | 2017-12-07 | 2020-01-31 | 西门子中压开关技术（无锡）有限公司 | Electric operating mechanism and switch device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20170313 |