CN110491742B - Circuit breaker reclosing device with electric leakage tripping function - Google Patents
Circuit breaker reclosing device with electric leakage tripping function Download PDFInfo
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- CN110491742B CN110491742B CN201910902354.8A CN201910902354A CN110491742B CN 110491742 B CN110491742 B CN 110491742B CN 201910902354 A CN201910902354 A CN 201910902354A CN 110491742 B CN110491742 B CN 110491742B
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- driving
- circuit breaker
- rotating member
- driving wheel
- output gear
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- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000009471 action Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
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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
- H01H71/10—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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/521—Details concerning the lever handle
-
- 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
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
Abstract
The invention discloses a circuit breaker reclosing device with a leakage tripping function, which comprises an electric driving mechanism and a tripping mechanism which are arranged in the same shell, wherein the electric driving mechanism comprises an output gear and a second driving wheel, and one side of the output gear is provided with a first driving wheel and a driving disc which rotate synchronously with the output gear; the tripping mechanism comprises a rotating member, an elastic part and an electromagnet, wherein a bar-shaped hole is formed in a driving rod of the electromagnet, a connecting shaft is arranged on the rotating member, the connecting shaft penetrates through the bar-shaped hole, the rotating member is connected with the tripping rod, a trigger part is arranged on the rotating member, a shifting table is arranged on a driving disc, the driving disc rotates, and when the shifting table collides with the trigger part, the rotating member is pushed to rotate against the elastic force of the elastic part, so that the tripping rod drives the circuit breaker to trip; when leakage occurs, the electromagnet drives the driving shaft to move and drives the rotating member to rotate against the elastic force of the elastic part, so that the tripping rod drives the circuit breaker to trip. The invention has reasonable structure and is beneficial to miniaturization design.
Description
Technical Field
The invention relates to a circuit breaker reclosing device with a leakage tripping function, and belongs to the field of circuit breaker reclosing device structural design.
Background
Patent document CN205692785U discloses a small-sized leakage reclosing circuit breaker, which comprises a circuit breaker unit, a reclosing unit for controlling the opening and closing of the circuit breaker unit, and a leakage tripping unit for performing leakage protection on the circuit breaker unit. The reclosing circuit breaker in the patent document makes up the defect that the traditional circuit breaker does not have the functions of electric leakage detection and automatic reclosing at the same time, but the reclosing circuit breaker in the patent document has the following defects: the reclosing unit and the leakage tripping unit are respectively arranged in the two shells, and the two shells are arranged side by side, so that the overall size of the circuit breaker can be increased undoubtedly, and the miniaturization design of the product is not facilitated.
Disclosure of Invention
In this regard, the invention aims to provide a circuit breaker reclosing device with a leakage tripping function, which has a reasonable structure and is beneficial to the miniaturization design of products.
The technical scheme for realizing the aim of the invention is as follows:
the circuit breaker reclosing device with the leakage tripping function comprises an electric driving mechanism and a tripping mechanism which are arranged in the same shell, wherein the electric driving mechanism comprises an output gear and a second driving wheel, a first driving wheel and a driving disc which rotate synchronously with the output gear are arranged on one side of the output gear, the second driving wheel is connected with a circuit breaker handle through a driving shaft, the first driving wheel and the second driving wheel are sector gears, the first driving wheel and the second driving wheel are switched between an engaged state and a disengaged state when rotating, and the first driving wheel rotates to drive the second driving wheel to rotate when in the engaged state, so that the circuit breaker handle is driven to act through the driving shaft;
the tripping mechanism comprises a rotating member, an elastic member and an electromagnet, wherein the rotating member is rotatably arranged in a shell, the elastic member provides reset elastic force for the rotating member, a bar-shaped hole is formed in a driving rod of the electromagnet, a connecting shaft is arranged on the rotating member, the connecting shaft penetrates through the bar-shaped hole, the rotating member is connected with a tripping rod, a trigger part is arranged on the rotating member, a shifting table is arranged on a driving disc, the driving disc rotates, when the shifting table collides with the trigger part, the rotating member is pushed to rotate against the elastic force of the elastic member, and then a circuit breaker is driven to trip through the tripping rod, and the connecting shaft moves in the bar-shaped hole in the process; when electric leakage occurs, the electromagnet drives the driving rod to move and drives the rotary member to overcome the elastic force of the elastic part to rotate, and then the tripping rod drives the circuit breaker to trip.
In the above technical scheme, the electric driving mechanism comprises a motor, an input gear and an output gear, wherein a worm is fixed on a motor shaft of the motor, the worm is meshed with the input gear, and the input gear is in transmission connection with the output gear.
In the technical scheme, the input gear is meshed with the output gear, and the periphery of the side part of the output gear is provided with the convex annular baffle.
In the above technical scheme, the output gear and the first driving wheel are of an integrated structure.
In the above technical scheme, one side of the first driving wheel facing away from the output gear is integrally formed with a sleeve joint portion, and the driving disc is annular and is provided with a sleeve hole sleeved with the sleeve joint portion.
In the above technical scheme, the elastic component is a tension spring, one end of the elastic component is hooked on a positioning shaft fixed in the shell, and the other end of the elastic component is hooked in a hanging hole of the rotating component.
In the technical scheme, the rotary member further comprises a limiting structure for limiting the rotary member;
the limiting structure comprises a first limiting boss formed in the shell and a second limiting boss formed on the rotating member, and the first limiting boss abuts against the second limiting boss under the elastic action of the elastic component in a normal state.
The invention has the positive effects that: according to the invention, the leakage tripping design is implanted in the reclosing device, so that the reclosing device has the leakage tripping function, and only one shell is used, so that the thickness dimension of a product can be reduced, and the miniaturization design of the product is facilitated.
Drawings
FIG. 1 is a schematic diagram of an interrupt circuit breaker reclosing device according to the present invention;
fig. 2 is a schematic view of the circuit breaker reclosing device of fig. 1 with a housing removed;
fig. 3 is a schematic view of the circuit breaker reclosing device of fig. 2 (with the housing removed) from another perspective;
FIG. 4 is a schematic diagram of a trip mechanism according to the present invention;
FIG. 5 is a schematic diagram of the structure of an output gear according to the present invention;
FIG. 6 is a schematic view of the structure of a driving disc according to the present invention;
fig. 7 is a schematic structural view of a rotating member according to the present invention.
The reference numerals shown in the figures are: 1-a housing; 11-positioning a shaft; 2-an output gear; 20-a second drive wheel; 21-an annular baffle; 3-a first drive wheel; 31-a socket; 4-driving a disc; 41-dial table; 5-a rotating member; 51-connecting shaft; 52-a trigger part; 53-a second limit boss; 6-an elastic member; 7-an electromagnet; 71-a drive rod; 72-bar-shaped holes; 8-a motor; 81-a worm; 9-input gear.
Detailed Description
The following describes the specific structure of the present invention with reference to the drawings:
the circuit breaker reclosing device with the leakage tripping function comprises an electric driving mechanism and a tripping mechanism which are arranged in the same shell 1, wherein the electric driving mechanism comprises an output gear 2 and a second driving wheel 20, one side of the output gear 2 is provided with a first driving wheel 3 and a driving disc 4 which synchronously rotate with the output gear, the second driving wheel 20 is connected with a circuit breaker handle through a driving shaft, the first driving wheel 3 and the second driving wheel 20 are sector gears, the first driving wheel 3 and the second driving wheel 20 are switched between an engaged state and a disengaged state when rotating, and the first driving wheel 3 rotates to drive the second driving wheel 20 to rotate when in the engaged state, so that the circuit breaker handle is driven to act through the driving shaft; the tripping mechanism comprises a rotating member 5, an elastic component 6 and an electromagnet 7, wherein the rotating member 5 is rotatably arranged in a shell 1, the elastic component 6 provides reset elastic force for the rotating member 5, a bar-shaped hole 72 is formed in a driving rod 71 of the electromagnet 7, a connecting shaft 51 is arranged on the rotating member 5, the connecting shaft 51 penetrates into the bar-shaped hole 72, the rotating member 5 is connected with the tripping rod, a trigger part 52 is arranged on the rotating member 5, a shifting table 41 is arranged on a driving disc 4, the driving disc 4 rotates and pushes the rotating member 5 to rotate against the elastic force of the elastic component 6 when the shifting table 41 is in collision with the trigger part 52, and then the tripping rod drives a circuit breaker to trip, and in the process, the connecting shaft 51 moves in the bar-shaped hole 72; when leakage occurs, the electromagnet 7 drives the driving rod 71 to move and drives the rotary member 5 to rotate against the elastic force of the elastic member 6, so that the tripping rod drives the circuit breaker to trip.
By adopting the structure in the embodiment, when the reclosing device is assembled on a breaker for use, a signal is sent to an electric driving mechanism through a control circuit during automatic closing, the electric driving mechanism operates, the output gear 2 rotates and drives the first driving wheel 3 and the driving disc 4 to rotate, the first driving wheel 3 is meshed with teeth on the second driving wheel 20 through teeth on the output gear in the rotating process to drive the second driving wheel 20 to rotate, the driving shaft drives a breaker handle to perform closing action to control the breaker to close, when the automatic opening and closing action is needed, a signal is sent to the electric driving mechanism through a control circuit, the electric driving mechanism operates, the output gear 2 rotates and drives the first driving wheel 3 and the driving disc 4 to rotate, the rotating member 5 is pushed to overcome the elastic force rotation of the elastic part 6 when the driving disc 4 is in the rotating process and the poking table 41 is in conflict with the triggering part 52, the breaker is further driven by a tripping rod to trip, and when the breaker is in an automatic opening and closing state, the first driving wheel 3 and the second driving wheel 20 are separated from the handle to be in a manual opening and closing state, and the manual opening and closing of the breaker is not influenced by the manual operation; when the circuit leaks electricity, the control circuit controls the electromagnet 7 to drive the driving rod 71 to move and drive the rotating member 5 to overcome the elastic force of the elastic member 6 after the electricity is lost or obtained, and then the tripping rod drives the circuit breaker to trip rapidly, so that the leakage and circuit breaking protection function is realized. According to the invention, the leakage tripping design is implanted in the reclosing device, so that the reclosing device has the leakage tripping function, and only one shell is used, so that the thickness dimension of a product can be reduced, and the miniaturization design of the product is facilitated. The control circuit and the electromagnet 7 in this embodiment are of the existing structure, which is not described in detail in this embodiment, and the driving rod 71 in this embodiment is connected to the movable iron core in the electromagnet 7, so that the driving rod 71 is driven to move when the movable iron core moves.
In this embodiment, the electric driving mechanism includes a motor 8, an input gear 9 and the output gear 2, a worm 81 is fixed on a motor shaft of the motor 8, the worm 81 is meshed with the input gear 9, the input gear 9 is in transmission connection with the output gear 2, and when the motor shaft of the motor 8 rotates, the worm 81 is driven to rotate, and the worm 81 rotates to drive the input gear 9 to rotate so as to drive the output gear 2 to rotate.
More specifically, in this embodiment, the input gear 9 is meshed with the output gear 2, and an outer convex annular baffle 21 is disposed at the periphery of the side portion of the output gear 2, so that in practical application, lubricating grease is added between the gears, and by setting the annular baffle 21, the effect of blocking the overflow of the lubricating grease can be achieved to a certain extent. In actual operation, an intermediate transmission gear may also be provided between the input gear 9 and the output gear 2.
In this embodiment, the output gear 2 and the first driving wheel 3 are integrally formed, that is, by one injection molding, so that the number of parts can be reduced.
In this embodiment, the first driving wheel 3 is integrally formed with a socket portion 31 on a side opposite to the output gear 2, and the driving disc 4 is annular, and has a socket hole sleeved with the socket portion 31, that is, the socket hole is connected with the socket portion 31 in a sleeved manner, so as to ensure that the socket portion 31 and the socket portion can rotate synchronously, and in general, a polygon, a semicircle, an ellipse, or the like with matched cross-sectional shapes of the socket portion 31 and the socket hole may be provided.
In this embodiment, the elastic member 6 is a tension spring, one end of which is hooked on a positioning shaft 11 fixed in the housing 1, and the other end of which is hooked in a hooking hole of the rotating member 5, so that the tension spring is installed.
The reclosing mechanism in this embodiment further includes a limiting structure for limiting the rotary member 5; specifically, the limiting structure includes a first limiting boss formed in the housing 1 and a second limiting boss 53 formed on the rotating member 5, where the first limiting boss abuts against the second limiting boss 53 under the elastic action of the elastic component 6 in a normal state, so as to limit the rotating member 5.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the invention remain within the scope of the invention.
Claims (6)
1. The circuit breaker reclosing device with the leakage tripping function is characterized by comprising an electric driving mechanism and a tripping mechanism which are arranged in the same shell (1), wherein the electric driving mechanism comprises an output gear (2) and a second driving wheel (20), one side of the output gear (2) is provided with a first driving wheel (3) and a driving disc (4) which rotate synchronously with the output gear, the second driving wheel (20) is connected with a circuit breaker handle through a driving shaft, the first driving wheel (3) and the second driving wheel (20) are sector gears, the first driving wheel (3) and the second driving wheel (20) are switched between an engaged state and a disengaged state when rotating, and the first driving wheel (3) rotates to drive the second driving wheel (20) to rotate when in the engaged state so as to drive the circuit breaker handle to act through the driving shaft;
the tripping mechanism comprises a rotating member (5), an elastic component (6) and an electromagnet (7), wherein the rotating member (5) is rotatably arranged in the shell (1), the elastic component (6) provides reset elastic force for the rotating member (5), a strip-shaped hole (72) is formed in a driving rod (71) of the electromagnet (7), a connecting shaft (51) is arranged on the rotating member (5), the connecting shaft (51) penetrates into the strip-shaped hole (72), the rotating member (5) is connected with the tripping rod, a trigger part (52) is arranged on the rotating member (5), a shifting table (41) is arranged on the driving disc (4), the driving disc (4) rotates, and when the shifting table (41) is in collision with the trigger part (52), the rotating member (5) is pushed to overcome the elastic force rotation of the elastic component (6), and then the circuit breaker is driven to trip through the tripping rod, and in the process, the connecting shaft (51) moves in the strip-shaped hole (72); when electric leakage occurs, the electromagnet (7) drives the driving rod (71) to move and drives the rotary member (5) to rotate against the elastic force of the elastic part (6), so that the tripping rod drives the circuit breaker to trip;
the elastic component (6) is a tension spring, one end of the elastic component is hooked on a positioning shaft (11) fixed in the shell (1), and the other end of the elastic component is hooked in a hanging hole of the rotating member (5);
the device also comprises a limiting structure for limiting the rotary member (5).
2. The circuit breaker reclosing device with the leakage tripping function according to claim 1, wherein the electric driving mechanism comprises a motor (8), an input gear (9) and an output gear (2), a worm (81) is fixed on a motor shaft of the motor (8), the worm (81) is meshed with the input gear (9), and the input gear (9) is in transmission connection with the output gear (2).
3. Circuit breaker reclosing device with leakage tripping function according to claim 2, characterized in that the input gear (9) is meshed with the output gear (2), and the lateral periphery of the output gear (2) is provided with a convex annular baffle (21).
4. Circuit breaker reclosing device with leakage tripping function according to claim 3, characterized in that the output gear (2) is of integral construction with the first driving wheel (3).
5. The circuit breaker reclosing device with the leakage tripping function according to claim 4, wherein a sleeving part (31) is integrally formed on one side of the first driving wheel (3) opposite to the output gear (2), and the driving disc (4) is annular and is provided with a sleeving hole sleeved with the sleeving part (31).
6. The circuit breaker reclosing device with the leakage tripping function according to claim 1, wherein the limiting structure comprises a first limiting boss formed in a shell (1) and a second limiting boss (53) formed on the rotating member (5), and the first limiting boss is abutted against the second limiting boss (53) under the elastic action of the elastic component (6) in a normal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902354.8A CN110491742B (en) | 2019-09-24 | 2019-09-24 | Circuit breaker reclosing device with electric leakage tripping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902354.8A CN110491742B (en) | 2019-09-24 | 2019-09-24 | Circuit breaker reclosing device with electric leakage tripping function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110491742A CN110491742A (en) | 2019-11-22 |
| CN110491742B true CN110491742B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910902354.8A Active CN110491742B (en) | 2019-09-24 | 2019-09-24 | Circuit breaker reclosing device with electric leakage tripping function |
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| CN (1) | CN110491742B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916693A (en) * | 2010-08-13 | 2010-12-15 | 乐清市公认电气有限公司 | Electrodynamic type intelligent breaker |
| CN104282508A (en) * | 2014-10-13 | 2015-01-14 | 浙江正泰电器股份有限公司 | Electromagnetic tripping device with tripping mechanism |
| CN205564660U (en) * | 2016-03-01 | 2016-09-07 | 浙江正泰电器股份有限公司 | Electronic type leakage breaker |
| WO2017076179A1 (en) * | 2015-11-04 | 2017-05-11 | 余姚市嘉荣电子电器有限公司 | Leakage protector having automatic power supply and power failure functions |
| CN210245439U (en) * | 2019-09-24 | 2020-04-03 | 山东卓文信息科技有限公司 | Circuit breaker reclosing device with electric leakage tripping function |
-
2019
- 2019-09-24 CN CN201910902354.8A patent/CN110491742B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916693A (en) * | 2010-08-13 | 2010-12-15 | 乐清市公认电气有限公司 | Electrodynamic type intelligent breaker |
| CN104282508A (en) * | 2014-10-13 | 2015-01-14 | 浙江正泰电器股份有限公司 | Electromagnetic tripping device with tripping mechanism |
| WO2017076179A1 (en) * | 2015-11-04 | 2017-05-11 | 余姚市嘉荣电子电器有限公司 | Leakage protector having automatic power supply and power failure functions |
| CN205564660U (en) * | 2016-03-01 | 2016-09-07 | 浙江正泰电器股份有限公司 | Electronic type leakage breaker |
| CN210245439U (en) * | 2019-09-24 | 2020-04-03 | 山东卓文信息科技有限公司 | Circuit breaker reclosing device with electric leakage tripping function |
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| Publication number | Publication date |
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| CN110491742A (en) | 2019-11-22 |
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