CN117855001A

CN117855001A - Reclosing switch

Info

Publication number: CN117855001A
Application number: CN202410049835.XA
Authority: CN
Inventors: 徐哲; 包定; 方晓东; 叶珠诚; 盛雅丽
Original assignee: Great Wall Electrical Appliance Group Zhejiang Technology Co ltd
Current assignee: Great Wall Electrical Appliance Group Zhejiang Technology Co ltd
Priority date: 2024-01-13
Filing date: 2024-01-13
Publication date: 2024-04-09

Abstract

The invention discloses a reclosing switch, which comprises a circuit breaker and a handle arranged on the circuit breaker; the handle is linked with a transmission shaft; one side of the circuit breaker is provided with a main board, a driving piece, a gear set and a tripping rod; the gear set is driven to rotate through the driving piece, so that the gear set drives the transmission shaft to be linked with the tripping rod; the gear set comprises a worm wheel linked with the driving piece, the worm wheel is linked with a linkage wheel, and the linkage wheel is connected with a tripping wheel; the trip wheel is linked with the trip rod through a first cam, the trip wheel is meshed with a driving wheel, and the transmission shaft is arranged on the driving wheel. The main board controls the driving piece to rotate clockwise or anticlockwise so as to enable the gear set to drive the transmission shaft and the tripping rod to work, and then the circuit breaker can reliably complete the closing action and the opening action. Based on the above, the circuit breaker has the functions of automatic opening and closing and reclosing, and can also realize remote control.

Description

Reclosing switch

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a reclosing switch.

Background

According to the intelligent demand of the power supply network in China, the national power grid company requires the intelligent power supply network. Therefore, a terminal actuator of the power supply network, i.e., a miniature circuit breaker (or miniature circuit breaker), is required to perform the tripping and closing functions of the upper-end signal. Therefore, the current development trend of the miniature circuit breaker is that the miniature circuit breaker not only has the traditional manual opening and closing and overcurrent short-circuit automatic tripping functions, but also needs to have the automatic opening and closing and reclosing functions so as to realize remote control; especially, the intelligent ammeter is combined, and the functions of automatic tripping and outage of arrearage and automatic closing and power transmission of charging are realized.

Disclosure of Invention

The present invention is directed to a reclosing switch to solve the above-mentioned problems.

In order to achieve the above purpose, the present invention provides the following technical solutions: the reclosing device comprises a circuit breaker, a handle arranged on the circuit breaker and a tripping piece linked with the handle, wherein the handle is linked with a transmission shaft; one side of the circuit breaker is provided with a main board, a driving piece, a gear set and a tripping rod; the driving piece drives the gear set to rotate so as to enable the transmission shaft and the tripping rod to be driven to be linked along with the gear set, so that the closing action or opening action of the circuit breaker is completed; the gear set comprises a worm wheel which is linked with the driving piece, the worm wheel is linked with a linkage wheel which is arranged, and the linkage wheel is connected with a tripping wheel which is arranged; the trip wheel promotes the trip bar to swing through the first cam that is equipped with, the trip wheel with the drive wheel meshing that is equipped with, just the transmission shaft is installed on the drive wheel.

As a preferable technical scheme of the invention: and the main board is also provided with a micro switch for acquiring the position information of the trip wheel, and the trip wheel triggers the micro switch through a second cam.

As a preferable technical scheme of the invention: the number of the micro switches is two.

As a preferable technical scheme of the invention: the gear set is a reduction gear set, and the reduction gear ratio of the gear set is 600:1.

As a preferable technical scheme of the invention: and a toggle switch is further arranged on the main board, and the toggle switch is controlled to be opened and closed through a poking piece arranged on the main board, so that the circuit breaker can complete automatic closing action and manual closing action.

As a preferable technical scheme of the invention: the trip bar comprises a plate body, wherein a first limiting part is arranged on one surface of the plate body, which is contacted with the first cam, and the first limiting part is contacted with the first cam to limit the continuous rotation of the first cam.

As a preferable technical scheme of the invention: the plate body with the one side of first cam contact still is equipped with the second spacing portion, and through the second spacing portion with prevent the release lever takes place the swing under the effect of no external force.

As a preferable technical scheme of the invention: the plate body is also provided with a mounting part, and is connected with a yielding groove arranged on the disengaging piece through a transmission rod arranged in the mounting part.

By adopting the technical scheme, the invention has the beneficial effects that: the main board controls the driving piece to rotate clockwise or anticlockwise so as to enable the gear set to drive the transmission shaft and the tripping rod to work, and then the circuit breaker can reliably complete the closing action and the opening action. Based on the above, the circuit breaker has the functions of automatic opening and closing and reclosing, and can also realize remote control.

Drawings

FIG. 1 is an exploded view of the main structure of the present invention;

FIG. 2 is a schematic diagram of a side structure of the present invention during closing;

FIG. 3 is a schematic view of another embodiment of the present invention during closing;

FIG. 4 is a schematic diagram of the structure of the present invention when opening the gate;

FIG. 5 is a schematic view of another embodiment of the present invention when opening the brake;

FIG. 6 is a combination diagram of a drive member, gear set, drive wheel, and trip bar;

FIG. 7 is a schematic view of a side structure of the trip wheel of the present invention;

FIG. 8 is a schematic view of the other side of the trip wheel of the present invention;

fig. 9 is a schematic main structure of the trip bar of the present invention.

In the figure: 1. a circuit breaker; 2. a main board; 3. a gear set; 30. a worm wheel; 31. a linkage wheel; 32. a trip wheel; 33. a first cam; 34. a second cam; 4. a driving member; 5. a transmission shaft; 6. a trip bar; 60. a plate body; 61. a first limit part; 62. a mounting part; 63. a second limit part; 64. a transmission rod; 7. a driving wheel; 8. a handle; 9. a toggle switch; 10. a micro-switch; 11. a pulling piece; 12. removing the fastener; 13. and (5) giving way.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "upper surface", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1-9, an embodiment of the present invention is provided: a reclosing switch comprises a circuit breaker 1, a handle 8 arranged on the circuit breaker 1 and a tripping piece 12 linked with the handle 8, wherein the handle 8 is linked with a transmission shaft 5; one side of the circuit breaker 1 is provided with a main board 2, a driving piece 4, a gear set 3 and a tripping rod 6; the gear set 3 is driven to rotate through the driving piece 4 so as to enable the transmission shaft 5 and the tripping rod 6 to be driven to follow the gear set 3 to be linked, so that the switching-on action or switching-off action of the circuit breaker 1 is completed; the gear set 3 comprises a worm wheel 30 linked with the driving piece 4, the worm wheel 30 is linked with a linkage wheel 31, and the linkage wheel 31 is connected with a tripping wheel 32; the trip wheel 32 drives the trip bar 6 to swing through a first cam 33, the trip wheel 32 is meshed with a driving wheel 7, and the driving shaft 5 is arranged on the driving wheel 7.

The drive piece 4 is controlled to be started or closed through the main board 2, so that the gear set 3 is caused to drive the transmission shaft 5 and the tripping rod 6 to work, and at the moment, the circuit breaker 1 can reliably cause the tripping piece 12 to complete the closing action and the opening action under the action of the tripping rod 6 and the transmission wheel 7. Based on this, the circuit breaker has an automatic opening and closing and reclosing function, and can also communicate with the outside through the main board 2 to realize remote control. Further, the driving wheel 7 is connected to the handles 8 of the plurality of circuit breakers 1 at the same time, so that the plurality of circuit breakers 1 can be synchronously switched on or off by the driving element 4. In addition, gear transmission is adopted, so that the device can accurately and reliably switch off and switch on, and the cross section of the transmission shaft 5 is rectangular.

In order to solve the problem that after tripping, the tripping wheel 32 does not return to the designated position, the situation that the tripping wheel is not closed and the breaker is not closed occurs, so that the miniature circuit breaker cannot be normally opened and closed, and the user cannot normally use electricity. The main board 2 is further provided with micro switches 10 for acquiring position information of the trip wheel 32, and the trip wheel 32 triggers the micro switches 10 through a second cam 34, specifically, the number of the micro switches 10 is two.

In summary, since the second cam 34 moves between the two micro switches 10, when the micro switches 10 are triggered, a signal is sent to the main board 2 immediately, and the main board 2 closes the driving member 4 after receiving the signal, so that the on/off position of the trip wheel 32 is controlled reliably, and the problem that the user cannot use electricity due to the overlarge travel of the trip wheel 32 and the failure to return to the designated position is solved.

On the basis of the scheme, as the gear set 3 is a speed reduction gear set, and the speed reduction transmission ratio of the gear set 3 is 600:1, the gear set 3 has stronger driving force to ensure smooth rotation of the disengaging piece 12, and the phenomena that the disengaging is not thorough due to the fact that the disengaging is weak and the ignition occurs on the slow electrode plate in the existing equipment are effectively solved.

Further, since the main board 2 is further provided with the toggle switch 9, and the toggle switch 9 is controlled to be opened and closed by the provided toggle piece 11, so that the circuit breaker 1 can complete automatic closing and manual closing, the toggle switch 9 can be triggered or closed by sliding the toggle piece 11 left and right, and then a reliable electric signal is provided for the main board 2 by the toggle switch 9, so that the main board 2 can realize automatic opening and closing or manual opening and closing.

Since the trip bar 6 includes the plate 60, a first limiting portion 61 is disposed on a surface of the plate 60 contacting the first cam 33, and the first limiting portion 61 contacts the first cam 33 to limit the continuous rotation of the first cam 33. Therefore, the phenomenon that the trip wheel 32 rotates excessively to cause failure of the opening and closing can be avoided.

Further, since the surface of the plate 60 contacting the first cam 33 is further provided with the second limiting portion 63, and the trip bar 6 is prevented from swinging under the action of no external force by the second limiting portion 63, when the first cam 33 abuts against the second limiting portion 63 after the trip bar is opened, the trip bar 6 can be prevented from sliding.

Because the inner space of the product is limited, the material can deform under the influence of temperature and humidity in different use environments, and then the phenomenon that the clamping is not smooth is caused in each linkage mechanism shaft, therefore, the plate body 60 is also provided with the mounting part 62, and the transmission rod 64 arranged in the mounting part 62 is connected with the yielding groove 13 arranged on the tripping part 12, specifically, the accommodating space of the accommodating groove 13 is larger than the outer diameter of the transmission rod 64, so that the transmission rod 64 can have enough movable travel in the inner part of the transmission rod, and on the basis, the tripping rod 6 has enough movable space, so that the normal closing and opening of the circuit breaker are not influenced.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.

Claims

1. A reclosure, characterized by: the automatic control device comprises a circuit breaker (1), a handle (8) arranged on the circuit breaker (1) and a tripping piece (12) linked with the handle (8), wherein the handle (8) is linked with a transmission shaft (5) which is arranged;

one side of the circuit breaker (1) is provided with a main board (2), a driving piece (4), a gear set (3) and a tripping rod (6);

the gear set (3) is driven to rotate through the driving piece (4), so that the transmission shaft (5) and the tripping rod (6) are driven to be linked with the gear set (3) to finish the closing action or the opening action of the circuit breaker (1);

the gear set (3) comprises a worm wheel (30) linked with the driving piece (4), the worm wheel (30) is linked with a linkage wheel (31) arranged, and the linkage wheel (31) is connected with a tripping wheel (32) arranged;

the trip wheel (32) drives the trip bar (6) to swing through a first cam (33) arranged on the trip wheel, the trip wheel (32) is meshed with a driving wheel (7) arranged on the trip bar, and the transmission shaft (5) is arranged on the driving wheel (7).

2. A recloser according to claim 1, wherein: the main board (2) is also provided with a micro switch (10) for acquiring the position information of the trip wheel (32), and the trip wheel (32) triggers the micro switch (10) through a second cam (34) arranged on the main board.

3. A reclosure according to claim 2, wherein: the number of the micro switches (10) is two.

4. A reclosure according to claim 1 or 2 or 3, wherein: the gear set (3) is a reduction gear set, and the reduction gear ratio of the gear set (3) is 600:1.

5. A recloser according to claim 4 wherein: the main board (2) is also provided with a toggle switch (9), and the toggle switch (9) is controlled to be opened and closed by a poking piece (11) so as to enable the circuit breaker (1) to complete automatic closing action and manual closing action.

6. A recloser according to claim 4 wherein: the tripping rod (6) comprises a plate body (60), a first limiting part (61) is arranged on one surface of the plate body (60) contacted with the first cam (33), and the first limiting part (61) is contacted with the first cam (33) to limit the continuous rotation of the first cam (33).

7. A recloser according to claim 6 wherein: and a second limiting part (63) is further arranged on one surface of the plate body (60) contacted with the first cam (33), and the trip bar (6) is prevented from swinging under the action of no external force by the second limiting part (63).

8. A recloser according to claim 7 wherein: the plate body (60) is also provided with an installation part (62), and is connected with a yielding groove (13) arranged on the tripping piece (12) through a transmission rod (64) arranged in the installation part (62).