CN212991019U

CN212991019U - Electric operating mechanism of miniature circuit breaker

Info

Publication number: CN212991019U
Application number: CN202022235876.8U
Authority: CN
Inventors: 徐宏
Original assignee: Wuxi Yuanhong Electrical Engineering Co ltd
Current assignee: Wuxi Yuanhong Electrical Engineering Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-04-16
Anticipated expiration: 2030-10-09

Abstract

The utility model belongs to the technical field of power equipment, especially, be a miniature circuit breaker electrically-operated mechanism, which comprises a housing, the inside wall fixedly connected with circuit board of casing, the surface of circuit board is rotated through the bearing and is connected with the mobile jib, the interior roof of casing is provided with combined floodgate spring mechanism, the inside wall fixedly connected with dead lever of casing, the surface sliding of dead lever is connected with a pole, the one end of a pole is rotated through the bull stick and is connected with No. two poles, the one end of No. two poles is rotated through the bull stick and is connected with No. three poles. The utility model discloses a cooperation of step motor, No. two gears and a gear provides the power that resets, and through the cooperation of the wheel that resets and release link, the resetting of dialling the pull rod has saved a large amount of circuits, and simple structure, firm has avoided the problem that the circuit breaker that the line emergence problem arouses can't reset among the reset process, very is favorable to using.

Description

Electric operating mechanism of miniature circuit breaker

Technical Field

The utility model relates to a power equipment technical field specifically is a miniature circuit breaker electrically-operated mechanism.

Background

A circuit breaker (english name: circuit-breaker) refers to a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and closing, carrying, and opening/closing a current under an abnormal circuit condition within a prescribed time. The circuit breaker divide into high-voltage circuit breaker and low-voltage circuit breaker according to its application range, and high-low pressure boundary line divides the comparison fuzziness, generally with the high-voltage apparatus of being more than 3kV, many wireless technology let the circuit breaker also can obtain remote control, but is totally different with ordinary circuit breaker in principle and structure, and ordinary remote circuit breaker is the switch of control circuit breaker and reaches the purpose of short circuit.

The electric operating mechanism of the miniature circuit breaker in the current market has the following problems:

1. in the prior art, most circuit breakers cannot be automatically reset, and need a user to manually reset after each circuit breaking, which is very inconvenient;

2. among the prior art, the structure that resets is complicated for the circuit breaker is most, and has a large amount of circuits, and when leading to resetting, the circuit goes wrong easily, and then can't reset, is unfavorable for the use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a small-size circuit breaker electric operating mechanism, solved because among the prior art, the circuit breaker is most unable automatic to reset, all needs the user to carry out manual reset after carrying out the circuit break at every turn, extremely inconvenient problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an electric operating mechanism of a miniature circuit breaker comprises a casing, wherein a circuit board is fixedly connected to the inner side wall of the casing, a main rod is rotatably connected to the surface of the circuit board through a bearing, a closing spring mechanism is arranged on the inner top wall of the casing, a fixed rod is fixedly connected to the inner side wall of the casing, a first rod is slidably connected to the surface of the fixed rod, a second rod is rotatably connected to one end of the first rod through a rotating rod, a third rod is rotatably connected to one end of the second rod through a rotating rod, a first gear is fixedly connected to one end of the third rod, an auxiliary rod is rotatably connected to the surface of the circuit board through a bearing, a first gear is fixedly connected to the top of the auxiliary rod, a stepping motor is fixedly mounted on the surface of the circuit board, a second gear is fixedly connected to the output end of the stepping motor, and a reset rod and a, the surface of the first rod is provided with a reset wheel.

As a preferred technical scheme of the utility model, the one end fixed connection of No. three poles is in the centre of a circle department of a gear, the length of No. three poles is greater than the radius of a gear.

As an optimal technical scheme of the utility model, No. two gears and a gear mesh mutually, No. two gears's radius is a gear radial half.

As an optimal technical scheme of the utility model, step motor's surface is provided with the protection casing, the one end of wheel that resets is passed through the bearing and is rotated the surface of connecting at a pole.

As an optimized technical scheme of the utility model, dial the surface of pull rod and cup jointed the rubber sleeve, the surface of rubber sleeve is provided with anti-skidding contact.

As an optimal technical scheme of the utility model, the spacing groove has been seted up on the surface of casing, dial pull rod and spacing groove looks adaptation.

(III) advantageous effects

Compared with the prior art, the utility model provides a miniature circuit breaker electrically-operated mechanism possesses following beneficial effect:

1. this miniature circuit breaker electrically-operated mechanism, cooperation through No. two gears and a gear, step motor is opened to the user, step motor rotates No. two gears, and then drive No. three poles and rotate, the one end of No. two poles of No. three pole pulling, No. one pole of the other end pulling of No. two poles, under the cooperation of dead lever, a pole horizontal migration promotes the reset wheel, the reset wheel promotes the reset lever, the reset lever rotates the mobile jib, the mobile jib rotates dials the pull rod, dial the pull rod and promote closing spring mechanism, and then reset the circuit breaker, and is very convenient to use.

2. This miniature circuit breaker electric operating mechanism through step motor, No. two gears and the cooperation of a gear, provides the power that resets, through the cooperation of the wheel that resets and release link, dials the reseing of pull rod, has saved a large amount of circuits, and simple structure, firm has avoided the problem that the circuit breaker that line emergence problem arouses can't reset among the reset process, very does benefit to the use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is an enlarged view of a structure in fig. 2 according to the present invention.

In the figure: 1. a housing; 2. a circuit board; 3. a main rod; 4. a closing spring mechanism; 5. fixing the rod; 6. a first rod; 7. a second rod; 8. a third rod; 9. a first gear; 10. an auxiliary rod; 11. a stepping motor; 12. a second gear; 13. a reset lever; 14. pulling a pull rod; 15. a rubber sleeve; 16. a limiting groove; 17. and a reset wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: an electric operating mechanism of a miniature circuit breaker comprises a machine shell 1, wherein the inner side wall of the machine shell 1 is fixedly connected with a circuit board 2, the surface of the circuit board 2 is rotatably connected with a main rod 3 through a bearing, the inner top wall of the machine shell 1 is provided with a closing spring mechanism 4, the inner side wall of the machine shell 1 is fixedly connected with a fixed rod 5, the surface of the fixed rod 5 is slidably connected with a first rod 6, one end of the first rod 6 is rotatably connected with a second rod 7 through a rotating rod, one end of the second rod 7 is rotatably connected with a third rod 8 through a rotating rod, one end of the third rod 8 is fixedly connected with a first gear 9, the surface of the circuit board 2 is rotatably connected with an auxiliary rod 10 through a bearing, the top of the auxiliary rod 10 is fixedly connected with a first gear 9, the surface of the circuit board 2 is fixedly provided with a stepping motor 11, the output end of the stepping motor 11 is, the surface of the first lever 6 is provided with a reset wheel 17.

In the embodiment, through the cooperation of the second gear 12 and the first gear 9, a user turns on the stepping motor 11, the stepping motor 11 rotates the second gear 12 to drive the third rod 8 to rotate, the third rod 8 pulls one end of the second rod 7, the other end of the second rod 7 pulls the first rod 6, under the cooperation of the fixing rod 5, the first rod 6 horizontally moves and pushes the reset wheel 17, the reset wheel 17 pushes the reset rod 13, the reset rod 13 rotates the main rod 3, the main rod 3 rotates the pull rod 14, the pull rod 14 pushes the closing spring mechanism 4 to reset the circuit breaker, through the cooperation of the stepping motor 11, the second gear 12 and the first gear 9, reset power is provided, through the cooperation of the reset wheel 17 and the reset rod 13, the reset of the pull rod 14 is carried out, a large number of circuits are saved, the structure is simple and firm, the problem that the circuit breaker cannot be reset due to circuit problems in the reset process is avoided, is very beneficial to use.

Specifically, one end of the third rod 8 is fixedly connected to the circle center of the first gear 9, and the length of the third rod 8 is larger than the radius of the first gear 9.

In this embodiment, the third rod 8 can perform circular motion with the center of circle of the first gear 9 as the axis, so that the third rod 8 can move more smoothly.

Specifically, the second gear 12 is meshed with the first gear 9, and the radius of the second gear 12 is one half of the radius of the first gear 9.

In this embodiment, when the second gear 12 rotates twice, the first gear 9 just rotates one turn, so as to reduce the torsion applied to the stepping motor 11 during the resetting process.

Specifically, a protective cover is arranged on the surface of the stepping motor 11, and one end of the reset wheel 17 is rotatably connected to the surface of the first rod 6 through a bearing.

In this embodiment, the protection casing can protect step motor 11, and reset wheel 17 can be through rotating the frictional force that reduces and reset rod 13, very be favorable to using.

Specifically, the surface of the pull rod 14 is sleeved with a rubber sleeve 15, and the surface of the rubber sleeve 15 is provided with an anti-skid contact.

In this embodiment, through rubber sleeve 15, can strengthen user's hand and dial the frictional force on pull rod 14 surface, the direct operation of dialling pull rod 14 of convenience of customers.

Specifically, a limiting groove 16 is formed in the surface of the casing 1, and the pull rod 14 is matched with the limiting groove 16.

In this embodiment, through spacing groove 16, can carry on spacingly to dialling pull rod 14 for the operation of dialling pull rod 14 is more stable.

The utility model discloses a theory of operation and use flow: when the circuit breaker is reset, the stepping motor 11 is turned on, the stepping motor 11 rotates the second gear 12, the second gear 12 drives the first gear 9 to rotate, the first gear 9 rotates the third rod 8 from one end of the third rod 8, the other end of the third rod 8 drives one end of the second rod 7 to do circular motion, the other end of the second rod 7 pulls the first rod 6 to move, the first rod 6 can only do horizontal movement under the limit of the fixed rod 5, the first rod 6 drives the reset wheel 17 to move in the moving process, the reset wheel 17 pushes the reset rod 13 to rotate, the reset rod 13 drives the main rod 3 to rotate, the main rod 3 drives the poking pull rod 14 to move, the poking pull rod 14 moves along the limit groove 16 and pushes the closing spring mechanism 4 to reset the closing spring mechanism 4, when the first gear 9 rotates the third rod 8 by one hundred and ten degrees, no. three pole 8 continues to rotate and inwards promotes No. two pole 7, and No. two pole 7 promote a pole 6 and reset, and a pole 6 drives reset wheel 17 for reset wheel 17 keeps away from release link 13 and resets, and the circuit breaker can use again this moment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric operating mechanism of a miniature circuit breaker comprises a machine shell (1), and is characterized in that: the inner side wall of the casing (1) is fixedly connected with a circuit board (2), the surface of the circuit board (2) is rotatably connected with a main rod (3) through a bearing, the inner top wall of the casing (1) is provided with a closing spring mechanism (4), the inner side wall of the casing (1) is fixedly connected with a fixed rod (5), the surface of the fixed rod (5) is slidably connected with a first rod (6), one end of the first rod (6) is rotatably connected with a second rod (7) through a rotating rod, one end of the second rod (7) is rotatably connected with a third rod (8) through a rotating rod, one end of the third rod (8) is fixedly connected with a first gear (9), the surface of the circuit board (2) is rotatably connected with an auxiliary rod (10) through a bearing, the top of the auxiliary rod (10) is fixedly connected with a first gear (9), and the surface of the circuit board (2) is fixedly provided with, the output end of the stepping motor (11) is fixedly connected with a second gear (12), the surface of the main rod (3) is respectively fixedly connected with a reset rod (13) and a poking pull rod (14), and the surface of the first rod (6) is provided with a reset wheel (17).

2. An electric operating mechanism of a small size circuit breaker according to claim 1, wherein: one end of the third rod (8) is fixedly connected to the circle center of the first gear (9), and the length of the third rod (8) is larger than the radius of the first gear (9).

3. An electric operating mechanism of a small size circuit breaker according to claim 1, wherein: the second gear (12) is meshed with the first gear (9), and the radius of the second gear (12) is one half of that of the first gear (9).

4. An electric operating mechanism of a small size circuit breaker according to claim 1, wherein: the surface of step motor (11) is provided with the protection casing, the one end of wheel that resets (17) is passed through the bearing and is rotated the surface of connecting in a pole (6).

5. An electric operating mechanism of a small size circuit breaker according to claim 1, wherein: the surface of the pull rod (14) is sleeved with a rubber sleeve (15), and the surface of the rubber sleeve (15) is provided with an anti-slip contact.

6. An electric operating mechanism of a small size circuit breaker according to claim 1, wherein: the surface of the shell (1) is provided with a limiting groove (16), and the pull rod (14) is matched with the limiting groove (16).