CN217387053U

CN217387053U - Circuit breaker electromagnet mounting structure

Info

Publication number: CN217387053U
Application number: CN202220839733.4U
Authority: CN
Inventors: 赵美莲; 田云霞; 侯启军; 何波
Original assignee: Zhenjiang Daquan Intelligent Electric Co ltd
Current assignee: Zhenjiang Daquan Intelligent Electric Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-09-06
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a circuit breaker electro-magnet mounting structure, including electro-magnet body, electro-magnet installation piece, circuit breaker curb plate, clamping bar, connecting rod, axle sleeve, bolt, round pin axle, jump ring, through set up electro-magnet installation piece on the electro-magnet, fix the electro-magnet body on the circuit breaker curb plate by electro-magnet installation piece again, and open on the circuit breaker curb plate and have square notch, make things convenient for the installation in the narrow and small space, the utility model discloses an axle sleeve is connected with the circuit breaker main shaft, and the other end is hinged joint with connecting rod and clamping bar in proper order, and the clamping bar is fixed with moving the iron core of electro-magnet to realize moving the iron core and being connected of mechanism in the circuit breaker, secondly move the iron core and be buckle formula with the fixing of clamping bar to press from both sides tightly through a fastener. Only need the dismouting during dismouting to move the fastener of iron core department and with two bolts that the electro-magnet installation piece is connected, do not influence other spare parts, also need not to demolish other spare parts in the circuit breaker, it is very convenient.

Description

Circuit breaker electromagnet mounting structure

Technical Field

The utility model belongs to the technical field of power supply unit, specifically a circuit breaker electro-magnet mounting structure.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. Therefore, the circuit breaker has been widely used.

At present, the breaking execution mechanism of the same kind of products in the industry mainly has a pure mechanical type and a single electromagnet type. A pure mechanical breaking actuating mechanism is a combination of a group of sheet metal parts and springs. When the breaker needs to be closed, the breaker needs to be manually operated to enable the movable contact and the fixed contact to be contacted and locked by the bayonet lock; when the residual electric quantity exceeds the threshold value, the clamping pin is opened through the heating principle of the bimetallic strip, the spring of the disjunction actuating mechanism generates force, the movable contact and the static contact are separated, and manual operation is carried out again when the circuit needs to be switched on again, so that the movable contact and the static contact are in the contact position. The breaking capacity of the breaking executing mechanism mainly depends on the tension of a spring in the mechanism, but due to the factors of limited space position, material limitation, requirement for considering closing capacity and the like, the tension of the spring cannot be increased infinitely, so that the breaking capacity is difficult to be effectively improved.

The single electromagnet type breaking executing mechanism is the combination of one electromagnet, one iron core and one spring. When the device is not in action, the movable contact and the static contact can be kept to be separated by the thrust of the spring; when the circuit breaker needs to be closed, the electromagnet coil is electrified through PCB control to generate magnetic force, and the magnetic force overcomes the thrust of the spring to make the moving contact and the static contact; when the residual electric quantity exceeds a threshold value, the electromagnet coil is de-energized through the control of the PCB, the magnetic force disappears, and the thrust of the spring pushes the whole breaking mechanism to separate the movable contact and the static contact; when the circuit needs to be switched on again, the electromagnet coil is electrified again through the control of the PCB to generate magnetic force, and the magnetic force overcomes the thrust of the spring to enable the static contact to be in contact with the position.

The opening and closing electromagnet is an important part for opening and closing actions of the circuit breaker, a fixing frame is usually installed outside the existing opening and closing electromagnet, threaded connecting holes are formed in the fixing frame, and the fixing frame is fixedly installed on a mechanism box body of the circuit breaker through screws, so that the fixing of the opening and closing electromagnet in the circuit breaker is completed.

In summary, the technical problem to be solved by the present solution is: above-mentioned disconnected execution structure of electro-magnet formula, because the operating space in the circuit breaker mechanism box is little when needs change the electro-magnet, consequently need demolish some electrical components around the divide-shut brake electro-magnet earlier, and then vacate great operating space, it is very inconvenient to change.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dismouting is quick and convenient's electro-magnet mounting structure to solve above-mentioned technical problem.

In order to realize the above object, the utility model discloses a following technical scheme realizes:

the utility model provides a circuit breaker electro-magnet mounting structure, includes electro-magnet body, electro-magnet installation piece, circuit breaker curb plate, clamping bar, connecting rod, axle sleeve, bolt, round pin axle, jump ring, the electro-magnet body is fixed and has with electro-magnet installation piece and moves the iron core, electro-magnet installation piece is fixed on the circuit breaker curb plate, connecting rod one end and axle sleeve hinged joint other end and clamping bar axle sleeve connection, the clamping bar with move the iron core and be connected, round pin axle and jump ring have two and set up at the hinged joint department of connecting rod and axle sleeve and the hinged joint department of connecting rod and clamping bar.

Furthermore, the electromagnet mounting block is provided with a threaded hole, a cylinder and a boss.

Further, the threaded holes and the cylinders are two in number and distributed diagonally.

Furthermore, the circuit breaker side plate is provided with a small round hole, a large round hole and a square notch.

Furthermore, the number of the small round holes is four and corresponds to the positions of the threaded holes and the cylinders.

Further, the big round hole is matched with the boss.

Furthermore, square notch is located big round hole next door and leans on outer one side, square notch is used for in the narrow and small space, makes the movable iron core directly pass through.

Further, the bolt has two and sets up in the screwed hole, should set up the gasket between bolt and the circuit breaker curb plate.

Further, the clamping rod is provided with a slot and a fastening hole, and the fastening hole is used for installing a fastening piece so as to clamp the movable iron core.

Furthermore, the slot is matched with the movable iron core, and the movable iron core is clamped in the slot.

Through the technical scheme, the utility model discloses following technological effect has:

the utility model discloses a set up electro-magnet installation piece on the electro-magnet, fix the electro-magnet body on the circuit breaker curb plate by electro-magnet installation piece again, and open on the circuit breaker curb plate and have square notch, make things convenient for the installation in the narrow and small space, the utility model discloses an axle sleeve is connected with the circuit breaker main shaft, and other end and connecting rod and clamping bar are hinged joint in proper order, and the clamping bar is fixed with moving the iron core of electro-magnet to the realization moves the iron core and is connected with the interior mechanism of circuit breaker, and secondly moves the iron core and the fixed of clamping bar is the buckle formula, and presss from both sides tightly through a fastener. Only need the dismouting during dismouting to move the fastener of iron core department and with two bolts that the electro-magnet installation piece is connected, do not influence other spare parts, also need not to demolish other spare parts in the circuit breaker, it is very convenient.

Drawings

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

FIG. 2 is a schematic view of the structure of the electromagnet mounting block of the present invention;

fig. 3 is a partial view of a circuit breaker side plate connection portion of the present invention;

fig. 4 is a schematic view of the structure of the clamping rod of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

The utility model provides a circuit breaker electromagnet mounting structure, includes electromagnet body 1, electromagnet installation piece 2, circuit breaker curb plate 3, clamping bar 4, connecting rod 5, axle sleeve 6, bolt 7, round pin axle 8, jump ring 9. The electromagnet body 1 is provided with a movable iron core 11, and the movable iron core 11 is in a rectangular parallelepiped shape in the embodiment.

The electromagnet mounting block 2 is fixed with the electromagnet 1, the movable iron core 11 penetrates through the electromagnet mounting block 2, two threaded holes 21, two columns 22 and a boss 23 are arranged on the electromagnet mounting block 2, the two threaded holes 21 are distributed diagonally, the two columns 22 are also distributed diagonally, and the boss 23 is arranged at the center positions of the two threaded holes 21 and the columns 22.

The circuit breaker is characterized in that the mounting positions of the electromagnet bodies 11 on the circuit breaker side plate 3 are provided with four small round holes 31, one large round hole 32 and a square notch 33, the small round holes 31 and the large round holes 32 are through holes, the positions of the small round holes 31 and the large round holes 32 correspond to those of the threaded holes 21 and the cylinders 22, and the square notch 33 is located on one side, close to the outside, of the large round holes 32. The electromagnet mounting block 2 is fixed on the side plate 3 of the circuit breaker, wherein a boss 23 on the electromagnet mounting block 2 is sunk into a large round hole 32, and a cylinder 22 is clamped in a small round hole 31. The two bolts 7 are respectively screwed into the threaded holes 21 through the small round holes 31. And a gasket is arranged between the bolt 7 and the circuit breaker side plate 3.

The shaft sleeve 6 is fixed on a main shaft of the circuit breaker, and the shaft sleeve 6 is provided with a hinge hole. The two ends of the connecting rod 5 which are in a long strip shape are both provided with hinge holes. One end of the clamping rod 4 is provided with a hinge hole, and the other end is provided with an inserting groove 41 and a fastening hole 42. The connecting rod 5 is provided with two ends, one end of the connecting rod is hinged with the shaft sleeve 6, the other end of the connecting rod is hinged with the clamping rod 4, the pin shafts 8 are respectively arranged in the hinge holes of the shaft sleeve 6 and the connecting rod 5 and the hinge holes of the connecting rod 5 and the clamping rod 4, and the connecting rod 5 is connected with the shaft sleeve and the clamping rod 4 by fixing the re-pin shafts 8 through the snap springs 8.

The slot 41 of the clamping rod 4 is clamped with the movable iron core 11, the slot 41 is square, the shape of the slot 41 is matched with that of the movable iron core 11, and a fastening piece can be arranged on the fastening hole 42 to further reinforce the connection between the clamping rod 4 and the movable iron core 11.

The specific disassembly and assembly manner of this embodiment is as follows:

before the electromagnet is installed again, the electromagnet installation block 2 and the electromagnet body 1 are fixed, the threaded holes 21 and the cylinders 22 on the electromagnet installation block 2 correspond to the small round holes 31 on the circuit breaker side plate 3 one by one during installation, the bosses 23 are guaranteed to be sunk into the large round holes 32, the cylinders 22 are clamped into the small round holes 31, and the movable iron cores 11 are clamped into the slots 41 of the clamping rods 4. The cylinder 22 is used for temporarily fixing, so that the bolt 7 can pass through the small circular hole 31 and be screwed into the threaded hole 31, and a gasket needs to be arranged between the bolt 7 and the circuit breaker side plate 3. The square notch 33 is used for enabling the movable iron core 11 to directly pass through the square notch 33 to reach a fixed position in a narrow space. Finally, the electromagnet can be installed by arranging a fastener on the fastening hole 42.

When the electromagnet needs to be removed, the fastening piece on the fastening hole 42 is removed, then the two bolts 7 are unscrewed, and the electromagnet mounting block 2 is moved out of the circuit breaker side plate 3.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a circuit breaker electro-magnet mounting structure which characterized in that: including electro-magnet body (1), electro-magnet installation piece (2), circuit breaker curb plate (3), clamping bar (4), connecting rod (5), axle sleeve (6), bolt (7), round pin axle (8), jump ring (9), electro-magnet body (1) is fixed and has with electro-magnet installation piece (2) and moves iron core (11), electro-magnet installation piece (2) are fixed on circuit breaker curb plate (3), connecting rod (5) one end and axle sleeve (6) hinged joint other end and clamping bar (4) axle sleeve connection, clamping bar (4) with move iron core (11) and be connected, round pin axle (8) and jump ring (9) have two and set up at the hinged joint department of connecting rod (5) and axle sleeve (6) and the hinged joint department of connecting rod (5) and clamping bar (4).

2. A circuit breaker electromagnet mounting structure according to claim 1, characterized in that: the electromagnet mounting block (2) is provided with a threaded hole (21), a cylinder (22) and a boss (23).

3. A circuit breaker electromagnet mounting structure according to claim 2, characterized in that: the threaded holes (21) and the cylinders (22) are respectively provided with two and are distributed diagonally.

4. A circuit breaker electromagnet mounting structure according to claim 1, characterized in that: the breaker side plate (3) is provided with a small round hole (31), a large round hole (32) and a square notch (33).

5. A circuit breaker electromagnet mounting structure as claimed in claim 4, wherein: the number of the small round holes (31) is four and corresponds to the positions of the threaded holes (21) and the cylinders (22).

6. The electromagnet mounting structure for circuit breakers of claim 4, wherein: the large round hole (32) is matched with the boss (23).

7. The electromagnet mounting structure for circuit breakers of claim 4, wherein: the square notch (33) is positioned at one side close to and outside the large round hole (32).

8. A circuit breaker electromagnet mounting structure according to claim 1, characterized in that: the screw (7) has two threaded holes (21).

9. A circuit breaker electromagnet mounting structure according to claim 1, characterized in that: the clamping rod (4) is provided with an inserting groove (41) and a fastening hole (42).

10. A circuit breaker electromagnet mounting structure according to claim 9, wherein: the slot (41) is matched with the movable iron core (11).