Primary and secondary fusion circuit breaker

Abstract

The utility model relates to a primary and secondary integrated circuit breaker, which comprises a base, a cover body arranged on the base and a breaker body arranged on the base and positioned in the cover body, and ventilation devices with the same structure are arranged on the left side wall and the right side wall of the cover body. The ventilation device comprises a ventilation opening formed in the side wall of the cover body, a baffle arranged in the side wall, a ventilation hole formed in the baffle and corresponding to the ventilation opening, and a driving device arranged on the inner wall side of the cover body and used for driving the baffle to move up and down. The ventilation opening is formed in the side wall of the cover body, the baffle is arranged in the side wall, the ventilation hole corresponding to the ventilation opening is also formed in the baffle, the baffle can move up and down under the driving of the driving device, when ventilation cooling is needed, the ventilation opening is opposite to the ventilation hole, the inside and the outside of the cover body can be communicated, and ventilation cooling is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a primary and secondary fusion circuit breaker. BACKGROUND

[0002] The primary and secondary fusion circuit breaker is an important electrical device for protecting power systems, and is used for breaking and connecting circuits in power systems. The primary and secondary fusion circuit breaker is usually used in medium-voltage and high-voltage power systems, and plays a key role in power distribution networks and substations. It can provide rapid detection and protection for power grid faults, and help protect power equipment and cables from damage caused by overload, short circuit and other fault conditions.

[0003] The existing conventional circuit breaker is basically directly exposed to the open air environment, and is prone to rust and passivation due to wind and sun exposure. The utility model patent with publication number CN210349731U discloses a primary and secondary fusion circuit breaker, which comprises a base and a circuit breaker body mounted on the base. A support seat is arranged on the upper end of the base and located on one side of the circuit breaker body. A cover plate is slidably arranged in the support seat in the vertical direction to shield the circuit breaker body. Sliding grooves are formed in the cover plate along the length direction. A guide column is slidably arranged in the sliding groove on the upper end of the support seat. A support plate is arranged on the support seat and faces the circuit breaker body. The patent has the effect of shading and rain protection for the circuit breaker body, which avoids direct exposure of the circuit breaker to the sun. However, the technical solution requires manual pulling of the cover plate to achieve the shading and rain protection effect, which undoubtedly increases the workload of the operator. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of providing a primary and secondary fusion circuit breaker that can automatically open and close the ventilation opening.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A primary and secondary fusion circuit breaker comprises a base, a cover body arranged on the base, and a circuit breaker body arranged on the base and located inside the cover body. Identical ventilation devices are arranged on the left and right side walls of the cover body. Each ventilation device comprises a ventilation opening arranged on the side wall of the cover body, a baffle arranged in the side wall, a ventilation hole arranged on the baffle and corresponding to the ventilation opening, and a driving device arranged on the inner wall side of the cover body for driving the baffle to move up and down.

[0007] Further, each ventilation device comprises two ventilation openings, and the number of ventilation holes is also two. The distance between the adjacent two ventilation openings is greater than the width of the ventilation opening.

[0008] Further, a gauze or steel mesh is arranged in the ventilation hole.

[0009] Further, a placing groove for installing the baffle is arranged on the side wall of the cover body, the top of the placing groove is located on the top surface of the side wall of the cover body, long grooves with open top are arranged on the left and right sides of the placing groove, the baffle is installed in the placing groove, and a rack is arranged on the left and right sides of the baffle and is arranged in the long groove, and the gear teeth of the rack are located in the inside of the cover body and are matched with the driving device.

[0010] Further, the driving device comprises a gear wheel engaged with the rack and a driving motor for driving the rotation of the gear wheel.

[0011] Further, the driving motor is located at an upper position in the middle of the side wall of the cover body, a driving shaft is drivingly connected to the output shaft of the driving motor, and two gear wheels are arranged at the left and right ends of the driving shaft, respectively.

[0012] Further, a rain shed is arranged on the outer side wall of the cover body and corresponds to the position above the air vent.

[0013] Further, the bottom of the cover body is fixedly connected with the base through bolts.

[0014] The positive effects of the utility model are as follows:

[0015] The side wall of the cover body is provided with an air vent, a baffle is arranged in the inside of the side wall, a ventilation hole corresponding to the air vent is also arranged on the baffle, the baffle can move up and down under the driving of the driving device, when ventilation and cooling are needed, the air vent and the ventilation hole are opposite to each other, the inside and outside of the cover body are communicated, ventilation and cooling are realized. When it is necessary to avoid rainwater from entering the inside of the cover body in heavy rain, the baffle moves upward, the air vent and the ventilation hole are completely staggered, the air vent is closed, rainwater is prevented from entering the inside of the cover body, and the circuit breaker body is prevented from being eroded. The whole device can realize automatic operation, manual on-site operation is not needed, and the workload of personnel is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a side wall schematic view of the cover body of the utility model;

[0018] Figure 3 It is a baffle structure schematic view of the utility model;

[0019] Figure 4 It is a cover body structure schematic view of the utility model. DETAILED DESCRIPTION

[0020] As shown in the accompanying drawings, Figures 1-4The utility model discloses a primary and secondary fusion's circuit breaker, including circuit breaker body 1, base 2 and cover body 3, circuit breaker body 1 fixed mounting is in base 2, cover body 3 covers and is located in cover body 3's inside in base 2. In the utility model, the same structure ventilation device is equipped on the left and right side walls of cover body 3, and the ventilation device includes the ventilation opening 4 of square shape set up on the side wall of cover body 3, the baffle 12 set up in the side wall, the ventilation hole 13 set up on the baffle 12 and corresponding with the shape of ventilation opening 4 and the driving device for driving the up-down movement of baffle 12. The side wall of cover body 3 is equipped with the placing groove 6, and baffle 12 is located in placing groove 6 and can move up and down in placing groove 6, and under the driving of driving device, can make ventilation hole 13 staggered or corresponding with ventilation opening 4, thereby realizing ventilation and closing. And according to the staggered position of ventilation opening 4 and ventilation hole 13, the ventilation amount can also be adjusted.

[0021] Preferably, each ventilation device includes two ventilation openings 4 arranged above and below, the number of ventilation holes 13 on the baffle 12 is also two, and the spacing between the two adjacent ventilation openings 4 is greater than the width of the ventilation opening 4, so that the two ventilation openings 4 can be closed at the same time. A screen or steel mesh is provided on the ventilation hole 13 to block some dust from entering the inside of the cover body 3.

[0022] The placing groove 6 is provided on the side wall of the cover body 3 and is arranged downward from the top opening. Long grooves 8 with top openings are provided on the left and right sides of the side wall near the inside of the cover body. The baffle 12 is installed in the placing groove 6, and a rack 9 is provided on the left and right sides of the baffle 12. The rack 9 is located in the long groove 8. Under the driving of the driving device, the baffle 12 can move up and down as a whole in the placing groove 6.

[0023] The driving device includes a driving motor 11 fixedly installed on the side wall of the cover body 3, a driving shaft 10 provided on the output shaft of the driving motor 11, and a gear 7 provided on the left and right ends of the driving shaft 10. The two gears 7 are respectively engaged with the racks 9 on both sides. The driving motor 11 simultaneously drives the rotation of the gears 7 on both sides, and simultaneously applies a force to the rack, which is beneficial to ensure the smooth operation of the baffle.

[0024] The bottom of the cover body 3 is fixedly connected with the base 2 by bolts. During installation, the circuit breaker body 1 is first installed on the base 2, and then the cover body 3 is connected with the base 2. Meanwhile, a rain shelter 5 is provided on the outer side wall of the cover body 3 and corresponds to the position above the ventilation opening 4. In order to improve the drainage effect, a drainage structure can also be provided on the base 2.

[0025] The utility model discloses a baffle 12 is located the lowest end position in initial state, at this moment, the air vent 13 is completely staggered with the air vent 4, and the air cylinder mouth 4 is completely closed, can effectively avoid dust into the cover body 3, can also prevent a large amount of rainwater from entering the cover body 3 inside and influencing the circuit breaker body 1 in heavy rain weather.

[0026] The utility model discloses still can set up controller and temperature probe in cover body 3, to realize remote control drive motor 11 working condition, realize remote value and keep watch, realize the effect of automation, need not carry out the on -the -spot adjustment.

[0027] The above embodiment is only used to illustrate the technical scheme of the utility model, and is not limited thereto; although the utility model is described in detail with reference to the foregoing embodiment, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiment can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the utility model embodiment.

Claims

1. A primary and secondary integrated circuit breaker, comprising a base (2), a housing (3) disposed on the base (2), and a circuit breaker body (1) disposed on the base (2) and located inside the housing (3), characterized in that The left and right side walls of the cover (3) are provided with ventilation devices with the same structure. The ventilation devices include ventilation openings (4) on the side walls of the cover (3), baffles (12) inside the side walls, ventilation holes (13) on the baffles (12) and corresponding to the ventilation openings (4), and a driving device on the inner wall of the cover (3) for driving the baffles (12) to move up and down.

2. The integrated primary and secondary circuit breaker according to claim 1, characterized in that... Each ventilation device includes two ventilation openings (4) and two ventilation holes (13). The distance between two adjacent ventilation openings (4) is greater than the width of the ventilation opening (4).

3. A primary and secondary integrated circuit breaker according to claim 1 or 2, characterized in that... A mesh or wire mesh is provided inside the ventilation hole (13).

4. A primary and secondary integrated circuit breaker according to claim 1, characterized in that... A placement groove (6) for installing a baffle (12) is provided on the side wall of the cover (3). The top of the placement groove (6) is located on the top surface of the side wall of the cover (3). Long grooves (8) with top openings are provided on the left and right sides of the placement groove (6). The baffle (12) is installed in the placement groove (6). A rack (9) is provided on the left and right sides of the baffle (12). The rack (9) is located in the long groove (8), and its teeth are located inside the cover (3) to cooperate with the drive device.

5. A primary and secondary integrated circuit breaker according to claim 4, characterized in that... The drive unit includes a gear (7) that meshes with the rack (9) and a drive motor (11) for driving the gear (7) to rotate.

6. A primary and secondary integrated circuit breaker according to claim 5, characterized in that... The drive motor (11) is located in the upper middle part of the side wall of the cover (3). A drive shaft (10) is connected to the output shaft of the drive motor (11). Two gears (7) are respectively set at the left and right ends of the drive shaft (10).

7. A primary and secondary integrated circuit breaker according to claim 1, characterized in that... A canopy (5) is provided on the outer wall of the cover (3) and above the vent (4).

8. A primary and secondary integrated circuit breaker according to claim 1, characterized in that... The bottom of the cover (3) is fixedly connected to the base (2) by bolts.

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