CN116110752A

CN116110752A - Instantaneous circuit breaker for overload protection of motor

Info

Publication number: CN116110752A
Application number: CN202310312676.3A
Authority: CN
Inventors: 张发良; 束庆林; 袁晶水
Original assignee: Nantong Lianke Automobile Parts Co ltd
Current assignee: Nantong Lianke Automobile Parts Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-05-12

Abstract

The invention relates to the technical field of circuit breakers, in particular to an instantaneous circuit breaker for overload protection of a motor, which comprises a circuit breaker shell, wherein a wire frame is arranged on the left side and the right side of the inside of the circuit breaker shell, a thread column is arranged at the top of the wire frame in a penetrating manner, a wire clamping structure is arranged in the wire frame, a mounting frame is arranged at the bottom of the circuit breaker shell, a heat dissipation mechanism is movably arranged at the left side of the mounting frame in a penetrating manner, a mounting block is arranged at the left side of the bottom of the circuit breaker shell, a motor is arranged on the lower surface of the mounting block, a second gear is arranged at the output end of the motor, a contact wheel is arranged at the right side of the second gear, and a protection structure is arranged on the lower surface of the mounting frame. According to the invention, the waterproof performance is ensured, meanwhile, heat can be quickly dissipated during circuit breaking, the internal structure of the circuit breaker is protected, and the wires are not required to be held by hands during circuit breaker wiring, so that the practicability of the circuit breaker is improved.

Description

Instantaneous circuit breaker for overload protection of motor

Technical Field

The invention relates to the technical field of circuit breakers, in particular to an instantaneous circuit breaker for overload protection of a motor.

Background

The circuit breaker is a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time, and can be used to distribute electric energy to protect a power supply line, a motor, and the like.

The current circuit breaker can produce electric arc in the twinkling of an eye of circuit breaking, improves the inside temperature of circuit breaker simultaneously, but current circuit breaker radiating effect is poor, and the inside injury that causes of circuit breaker is easy to the high temperature that produces when breaking, has reduced the life of circuit breaker to current circuit breaker need hold up the wire with the hand until compressing tightly the wire when the wiring, and the operation is comparatively inconvenient. For this purpose we propose an instantaneous circuit breaker for motor overload protection.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides an instantaneous circuit breaker for overload protection of a motor, which can ensure the waterproof performance and rapidly dissipate heat during circuit breaking to protect the internal structure of the circuit breaker, and the circuit breaker is connected without holding a wire by hand, so that the practicability of the circuit breaker is improved.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides an instantaneous circuit breaker for motor overload protection, includes the circuit breaker casing, the terminal block is all installed to circuit breaker casing inside left and right sides, the screw thread post is installed in the thread penetration of terminal block top, terminal block internally mounted has the wire clamping structure, the installing frame is installed to circuit breaker casing bottom, installing frame left side activity is run through and is installed cooling mechanism, the installation piece is installed in circuit breaker casing bottom left side, surface mounting has the motor under the installation piece, the second gear is installed to the motor output, the touch wheel is installed on the second gear right side, the louvre has been seted up to the installing frame lower surface, the louvre is integrated with the installing frame and designs, surface mounting has protection architecture under the installing frame.

Preferably, the wire clamping structure comprises a vertical plate arranged inside the wire frame, a wire clamping groove is formed in the surface of the vertical plate, the wire clamping groove and the vertical plate are integrally designed, two rotating rods are movably arranged on one side of the vertical plate, a first spring is connected between the two rotating rods, and a collision block is arranged on one side of the rotating rod.

Preferably, the right side of the abutting block is provided with an anti-skid pad, and the anti-skid pad is made of rubber.

Preferably, the heat dissipation mechanism comprises a movable rod movably penetrating through the left side of the mounting frame, a plurality of heat dissipation fins are mounted on the outer side of the movable rod, a first gear is mounted at the left end of the movable rod, and the second gear is meshed with the first gear.

Preferably, the protection architecture is including installing the dead lever in the left and right sides of installing frame lower surface, the baffle is installed to the dead lever bottom, two the lifter plate is installed in movable penetration in the dead lever outside, the second spring is all installed to lifter plate lower surface left and right sides, the one end that the lifter plate was kept away from to the second spring is installed at the baffle upper surface, the conflict board is installed in lifter plate upper surface left side, conflict board upper surface mounting has the connecting block, mutually support between connecting block and the conflict wheel.

Preferably, a sealing gasket is arranged on the upper surface of the lifting plate.

The instantaneous circuit breaker for motor overload protection has the beneficial effects that: according to the invention, when wiring is needed, after one end of a wire is stripped, the wire is inserted into the inside of a wire frame from the upper part of the wire clamping groove, then the wire is pulled downwards to abut against the abutting block, so that the rotating rod is driven to open, the wire is clamped by the anti-slip pad, the wire is simply fixed, then the wire is pressed tightly and tightly contacted with the wire frame through the rotating threaded column, then the wire is pulled downwards, so that the wire enters a position below the rotating rod, at the moment, the rotating rod resets, the wire can be simply fixed when the wire is connected, the wire does not need to be held by hand while rotating the threaded column, the working efficiency of the connecting wire is improved, when the circuit breaker is in arc extinction, the second gear can be driven to rotate for one circle by opening a switch of the motor, so that the abutting wheel is driven to rotate for one circle, the first gear can be driven to rotate, the movable rod can be driven to rotate, the radiating fan piece can play a radiating effect, when the abutting wheel rotates, the abutting wheel can abut against the connecting block to move downwards, so that the abutting plate and the lifting plate moves downwards, so that the sealing pad can leave the bottom of the mounting frame, the radiating hole can abut against, the radiating hole, and when the radiating hole is reset, the radiating hole can be normally reset, and the radiating hole can be sealed when the radiating hole is required to be sealed, and sealed quickly.

Drawings

Fig. 1 is a schematic sectional view of a circuit breaker housing of an instantaneous circuit breaker for motor overload protection according to the present invention;

fig. 2 is a schematic side view of a riser of a momentary circuit breaker for motor overload protection according to the present invention;

fig. 3 is a schematic plan view of a lifting plate of an instantaneous circuit breaker for overload protection of a motor according to the present invention;

fig. 4 is a schematic diagram of a collision wheel structure of an instantaneous circuit breaker for overload protection of a motor according to the present invention;

fig. 5 is a schematic diagram of a structure of an instantaneous circuit breaker a for overload protection of a motor according to the present invention.

In the figure: the circuit breaker comprises a circuit breaker shell 1, a wire frame 2, a threaded column 3, a vertical plate 4, a wire clamping groove 5, a rotating rod 6, a collision block 7, a first spring 8, a mounting frame 9, a movable rod 10, a heat radiating fan 11, a first gear 12, a mounting block 13, a motor 14, a second gear 15, a collision wheel 16, a heat radiating hole 17, a fixed rod 18, a baffle 19, a lifting plate 20, a second spring 21, a collision plate 22, a connecting block 23, a sealing gasket 24 and a non-skid pad 25.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1 to 5, an instantaneous circuit breaker for overload protection of a motor, comprising a breaker housing 1, a wire holder 2 is installed at both left and right sides inside the breaker housing 1, a threaded post 3 is installed at the top thread penetration of the wire holder 2, a wire clamping structure is installed inside the wire holder 2, the wire clamping structure comprises a riser 4 installed inside the wire holder 2, a wire clamping groove 5 is provided on the surface of the riser 4, the wire clamping groove 5 and the riser 4 are integrally designed, two rotating rods 6 are movably installed at one side of the riser 4, a first spring 8 is connected between the two rotating rods 6, a collision block 7 is installed at one side of the rotating rods 6, a slipmat 25 is installed at the right side of the collision block 7, the slipmat 25 is made of rubber, after one end of a wire is stripped off when the wire is needed, the wire is inserted into the wire holder 2, then the wire is pulled downwards, the wire is pushed against the collision block 7, thereby driving the rotating rods 6 to open, the wire is clamped by the slipmat 25, the wire is simply fixed, the wire is pressed tightly with the wire holder 2 through the threaded post 3, then the wire is tightly contacted with the wire holder 2, then the wire is pulled down, the wire is enabled to be pushed down by the rotating rod 6, and then the wire can be rotated by the rotating rod when the rotating rod is required to be rotated, and the wire is not rotated, and the wire is required to be rotated, and the wire is rotated by the rotating rod is rotated, and the wire holder.

The circuit breaker casing 1 installs the installing frame 9 in the bottom, and installing frame 9 left side activity runs through installs heat dissipation mechanism, and heat dissipation mechanism is including the activity and runs through the movable rod 10 of installing in installing frame 9 left side, and a plurality of heat dissipation fan 11 are installed in the movable rod 10 outside, and first gear 12 is installed to the movable rod 10 left end, and the meshing between second gear 15 and the first gear 12, second gear 15 rotate the round, can drive first gear 12 and rotate to drive movable rod 10 and rotate, make heat dissipation fan 11 play the radiating effect.

The installation piece 13 is installed in circuit breaker casing 1 bottom left side, installation piece 13 lower surface mounting has motor 14, motor 14 output installs second gear 15, second gear 15 right side is installed and is supported touch wheel 16, the louvre 17 has been seted up to installation frame 9 lower surface, louvre 17 is integrated with installation frame 9 and designs, surface mounting has protective structure under the installation frame 9, protective structure is including installing the dead lever 18 in the installation frame 9 lower surface left and right sides, baffle 19 is installed to the dead lever 18 bottom, two dead levers 18 outside movable run-through has lifter plate 20, surface mounting has sealed pad 24 on the lifter plate 20 can seal the louvre 17 when normal use, play dustproof effect.

The second spring 21 is all installed to lifter plate 20 lower surface left and right sides, the one end that lifter plate 20 was kept away from to second spring 21 is installed at baffle 19 upper surface, the conflict board 22 is installed in lifter plate 20 upper surface left side, surface mounting has connecting block 23 on the conflict board 22, mutually support between connecting block 23 and the conflict wheel 16, when conflict wheel 16 rotates, can be through conflict connecting block 23 downward movement, thereby drive conflict board 22 and lifter plate 20 downward movement, thereby make sealed pad 24 leave the mounting frame 9 bottom, make the louvre 17 can normally dispel the heat, when the touch wheel 16 rotates the round and resets, louvre 17 is sealed by sealed pad 24 again, when can guarantee the dustproof effect of circuit breaker, can dispel the heat fast with the temperature when needing to dispel the heat.

Working principle: according to the invention, when wiring is needed, after one end of a wire is stripped, the wire is inserted into the inside of the wiring frame 2 from the upper part of the wire clamping groove 5, then the wire is pulled downwards to abut against the abutting block 7, so that the rotating rod 6 is driven to open, the wire is clamped by the anti-slip pad 25, the wire is simply fixed, then the wire is tightly pressed against the wiring frame 2 through the rotating threaded column 3, then the wire is pulled downwards, the wire enters a position below the rotating rod 6, at the moment, the rotating rod 6 is reset, the wire can be simply fixed, the wire does not need to be held by a hand while rotating the threaded column 3, the working efficiency of the wire connection is improved, when the circuit breaker is in arc extinguishing, the second gear 15 is driven to rotate for one circle by opening the switch of the motor 14, the abutting wheel 16 is driven to rotate for one circle, the first gear 12 is driven to rotate in the rotating process of the second gear 15, the movable fan 11 is driven to rotate, the heat radiating fin 11 is enabled to have the effect, the wire can be pulled downwards, the abutting plate 22 and the lifting plate 20 are driven to move downwards through the connecting block 23 when the abutting wheel 16 rotates, the heat radiating pad 24 is driven to move downwards, the heat radiating pad 17 can be enabled to be sealed when the heat is required to be sealed, and the heat radiating hole is required to be sealed, and the heat is required to be sealed, and the heat is released, and the heat is sealed, and the heat is required to be sealed, and the heat is removed.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides an instantaneous circuit breaker for motor overload protection, includes circuit breaker casing (1), its characterized in that, terminal frame (2) are all installed to circuit breaker casing (1) inside left and right sides, terminal frame (2) top screw thread runs through and installs screw thread post (3), terminal frame (2) internally mounted has the wire clamping structure, circuit breaker casing (1) bottom is installed and is installed frame (9), the heat dissipation mechanism is installed in movable run-through in frame (9) left side, installation piece (13) are installed in circuit breaker casing (1) bottom left side, surface mounting has motor (14) under installation piece (13), second gear (15) are installed to motor (14) output, second gear (15) right side is installed and is supported contact wheel (16), louvre (17) have been seted up to frame (9) lower surface, louvre (17) are integrated into one piece design with frame (9), surface mounting has protection architecture under frame (9).

2. The instantaneous circuit breaker for motor overload protection according to claim 1, wherein the wire clamping structure comprises a vertical plate (4) arranged inside a wire frame (2), a wire clamping groove (5) is formed in the surface of the vertical plate (4), the wire clamping groove (5) and the vertical plate (4) are integrally designed, two rotating rods (6) are movably arranged on one side of the vertical plate (4), a first spring (8) is connected between the two rotating rods (6), and a collision block (7) is arranged on one side of the rotating rods (6).

3. The instantaneous interruption circuit breaker for motor overload protection according to claim 2, characterized in that the right side of the interference block (7) is provided with an anti-slip pad (25), the anti-slip pad (25) being made of rubber.

4. The instantaneous circuit breaker for motor overload protection according to claim 1, characterized in that the heat dissipation mechanism comprises a movable rod (10) movably mounted on the left side of the mounting frame (9), a plurality of heat dissipation fins (11) are mounted on the outer side of the movable rod (10), a first gear (12) is mounted on the left end of the movable rod (10), and the second gear (15) is meshed with the first gear (12).

5. The instantaneous circuit breaker for motor overload protection according to claim 1, wherein the protection structure comprises fixing rods (18) arranged on the left side and the right side of the lower surface of the mounting frame (9), baffle plates (19) are arranged at the bottoms of the fixing rods (18), lifting plates (20) are movably arranged on the outer sides of the fixing rods (18) in a penetrating mode, second springs (21) are arranged on the left side and the right side of the lower surface of the lifting plates (20), one ends, far away from the lifting plates (20), of the second springs (21) are arranged on the upper surface of the baffle plates (19), abutting plates (22) are arranged on the left side of the upper surface of the lifting plates (20), connecting blocks (23) are arranged on the upper surface of the abutting plates (22), and the connecting blocks (23) are matched with the abutting wheels (16).

6. The momentary break circuit breaker for motor overload protection according to claim 5, characterized in that the lifting plate (20) is provided with a gasket (24) on its upper surface.