Universal molded case circuit breaker switch shunt excitation device

Abstract

The utility model discloses a universal molded case circuit breaker switch shunt excitation device, which relates to the technical field of switch shunt excitation devices, and comprises a circuit breaker, a shunt excitation mechanism is mounted on the surface of the circuit breaker, a protection mechanism is mounted on the surface of the shunt excitation mechanism, the protection mechanism comprises a protection frame, the protection frame is mounted on the surface of the shunt excitation mechanism, and the protection frame is mounted on the surface of the shunt excitation mechanism. A ventilation hole is formed in one side of the protection frame, a hinge strip is installed on the surface of the protection frame, a door body is fixedly connected to the surface of the hinge strip, and a protection piece is installed on the surface of the door body. When the elastic arc plate is collided by external force to deform, the elastic arc plate extrudes the arc-shaped baffle, the telescopic rod presses the spring, if the external force is too large, the insertion rod installed at the bottom of the telescopic rod is combined with the insertion hole, the whole circuit is switched on, and the alarm gives an alarm to remind people to pay attention to whether the shunt mechanism is damaged or not. Therefore, the shunt mechanism can be effectively protected, and the shunt mechanism is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of switch shunt devices, in particular to a universal molded case circuit breaker switch shunt device. Background Art

[0002] The shunt device of the circuit breaker is a remote-controlled tripping mechanism. The shunt tripping device is a short-time working system. The shunt coil is usually energized for no more than 1S, otherwise the shunt coil will be burned out. In order to prevent the shunt coil from burning out, a micro switch is connected in series in the shunt tripping device of the molded case circuit breaker. When the shunt tripping device is attracted by the armature, the micro switch changes from the closed state to the open state, so that the power control circuit of the shunt tripping device is cut off, and the shunt coil is no longer energized, thereby avoiding the burning of the shunt coil. When the circuit breaker is closed again, the micro switch returns to the closed position;

[0003] The current announcement number is CN201868357U, a kind of shunt release, in particular, refers to a shunt release in which a group of auxiliary contacts are arranged in the shell of the shunt release, and the power supply of the auxiliary contacts is different from the power supply of the shunt release coil of the shunt release. The utility model adopts the following technical scheme, a shunt release with auxiliary contacts, including a shell, a shunt release unit and an auxiliary contact unit arranged in the shell, the shunt release unit includes a handle, a tripping mechanism and a contact mechanism, characterized in that: the power supply of the auxiliary contact unit is independent of the power supply used by the coil of the shunt release unit. By adopting the above scheme, the utility model overcomes the shortcomings of the prior art and provides a new type of shunt release in which a group of auxiliary contacts are arranged in the shell of the shunt release, and the power supply of the auxiliary contacts is different from the power supply used by the coil of the shunt release unit.

[0004] In order to solve the problem of the use effect of the shunt device, the existing technology uses auxiliary contacts and coils to deal with different shunt devices. However, the shunt device cannot be protected when in use, causing the shunt release to be damaged, thereby affecting normal operation, and the starting current of the shunt device is large. When operating at a long distance, the impedance of the wire causes the release to fail. Utility Model Content

[0005] The purpose of the utility model is to provide a universal molded case circuit breaker switch shunt device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A universal molded case circuit breaker switch shunt device comprises a circuit breaker, a shunt mechanism is mounted on the surface of the circuit breaker, and a protection mechanism is mounted on the surface of the shunt mechanism;

[0008] The protection mechanism includes a protection frame, which is installed on the surface of the shunt mechanism. A ventilation hole is opened on one side of the protection frame. A hinge strip is installed on the surface of the protection frame. The surface of the hinge strip is fixedly connected to the door body. The surface of the door body is installed with a protection piece.

[0009] A further improvement of the technical solution of the utility model is that the protective member comprises an elastic arc plate, the elastic arc plate is fixedly connected to the surface of the door body, an anti-collision structure is installed inside the elastic arc plate, and the first buffering is performed by the elastic arc plate.

[0010] A further improvement of the technical solution of the utility model is that the anti-collision structure includes a telescopic seat, which is fixedly connected to the surface of the door body, a socket is installed inside the telescopic seat, a spring is sleeved on the surface of the socket, a plug rod is installed on the surface of the socket, and the telescopic rod presses the spring. If the external force is too large, the plug rod installed at the bottom of the telescopic rod will combine with the socket, and the whole circuit will be connected.

[0011] A further improvement of the technical solution of the utility model is that one end of the insertion rod is fixedly connected to a telescopic rod, and one end of the telescopic rod is fixedly connected to an arc-shaped baffle, the elastic arc plate will squeeze the arc-shaped baffle, and the telescopic rod will press the spring.

[0012] A further improvement of the technical solution of the utility model is that a battery and an alarm are installed on the surface of the telescopic seat, and the battery and the alarm are electrically connected to the socket and the plug rod. The plug rod installed at the bottom of the telescopic rod will be combined with the socket, the whole circuit will be connected, and the alarm will sound an alarm to remind people whether the excitation mechanism is damaged.

[0013] A further improvement of the technical solution of the utility model lies in that: the shunt mechanism includes a base, the base is mounted on the surface of the circuit breaker, a yoke is arranged inside the base, the yoke is U-shaped, a static iron core is arranged at the bottom center of the yoke, a coil is arranged inside the yoke, and the static iron core is located between the coils; a moving iron core is arranged at intervals on the upper part of the static iron core, a pressure plate is arranged on the upper part of the coil, the moving iron core passes through the pressure plate, an axis is arranged on the upper part of the yoke, the axis passes through the circular hole on the flip plate and is fixed to the yoke, a slot is provided on the flip plate, and one end of the torsion spring is fixed to the pressure plate.

[0014] A further improvement of the technical solution of the utility model is that a torsion spring is arranged on the surface of the shaft, a flip plate is arranged at one end of the torsion spring, a lever is arranged on the flip plate, the flip plate is flipped when the passive iron core is pulled down, and the lever can touch the circuit breaker switch.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] The utility model provides a universal molded case circuit breaker switch shunt device. When an elastic arc plate is deformed by the impact of an external force, the elastic arc plate will squeeze the arc baffle, and the telescopic rod will press the spring. If the external force is too large, the plug rod installed at the bottom of the telescopic rod will be combined with the plug hole, the whole circuit will be connected, and the alarm will sound an alarm to remind people to pay attention to whether the shunt mechanism is damaged, so that the shunt mechanism can be effectively protected to prevent the shunt mechanism from being damaged.

[0017] The utility model provides a universal molded case circuit breaker switch shunt device. When the coil is energized, the moving iron core is pulled down by the static iron core, the flip plate is flipped by the moving iron core, and the lever can touch the circuit breaker switch. A circular hole is provided at the bottom center of the yoke, a boss is provided on the static iron core, the boss on the static iron core is inserted into the circular hole on the yoke to achieve fixation, the coil is provided with a boss, a clamp is provided on the pressure plate, the boss on the coil is connected with the clamp of the pressure plate, the overall shunt mechanism has a simple structure, a small volume, convenient assembly, strong working stability, and a properly changed coil parameter can output different tripping forces from the releaser, the temperature rise is low, and the difficulty of the releaser being applied to a circuit breaker with a small frame grade is solved. Moreover, since a larger tripping force can be output, the releaser can be applied to a circuit breaker with a current specification requiring a larger tripping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the protection mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the protective element of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the anti-collision structure of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the front view of the shunt mechanism of the utility model;

[0023] Figure 6 It is a schematic diagram of the structure of the top view of the shunt mechanism of the utility model;

[0024] In the figure: 1. circuit breaker; 2. protection mechanism; 20. protection frame; 21. ventilation hole; 22. hinge strip; 23. door body; 24. protection piece; 240. elastic arc plate; 241. anti-collision structure; 2410. telescopic seat; 2411. jack; 2412. spring; 2413. plug rod; 2414. telescopic rod; 2415. arc baffle; 2416. battery; 2417. alarm; 3. shunt mechanism; 30. base; 31. yoke; 32. static iron core; 33. coil; 34. moving iron core; 35. pressure plate; 36. shaft; 37. lever; 38. torsion spring; 39. flip plate. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the embodiments: Example

[0026] like Figure 1-4 As shown, the utility model provides a universal molded case circuit breaker switch shunt device, including a circuit breaker 1, a shunt mechanism 3 is installed on the surface of the circuit breaker 1, a protective mechanism 2 is installed on the surface of the shunt mechanism 3, the protective mechanism 2 includes a protective frame 20, the protective frame 20 is installed on the surface of the shunt mechanism 3, a ventilation hole 21 is opened on one side of the protective frame 20, a hinge bar 22 is installed on the surface of the protective frame 20, a door body 23 is fixedly connected to the surface of the hinge bar 22, a protective member 24 is installed on the surface of the door body 23, the protective member 24 includes an elastic arc plate 240, the elastic arc plate 240 is fixedly connected to the surface of the door body 23, and the inner part of the elastic arc plate 240 is provided with a protective member 240. An anti-collision structure 241 is installed, and the anti-collision structure 241 includes a telescopic seat 2410, and the telescopic seat 2410 is fixedly connected to the surface of the door body 23. A socket 2411 is installed inside the telescopic seat 2410, and a spring 2412 is sleeved on the surface of the socket 2411. A plug rod 2413 is installed on the surface of the socket 2411, and one end of the plug rod 2413 is fixedly connected to a telescopic rod 2414, and one end of the telescopic rod 2414 is fixedly connected to an arc baffle 2415. A battery 2416 and an alarm 2417 are installed on the surface of the telescopic seat 2410, and the battery 2416 and the alarm 2417 are electrically connected to the socket 2411 and the plug rod 2413;

[0027] Specifically, the shunt mechanism 3 is installed inside the protective frame 20, the door body 23 is closed, and ventilation is performed through the ventilation hole 21 to ensure that the shunt mechanism 3 dissipates heat during operation. When a certain impact force is applied to the elastic arc plate 240, the elastic arc plate 240 will be deformed, the elastic arc plate 240 will squeeze the arc baffle 2415, and the telescopic rod 2414 will press the spring 2412. The entire device has a buffering effect on the applied external force to protect the shunt mechanism 3 from being affected. When the elastic arc plate 240 is deformed by the impact of external force, the elastic arc plate 240 will squeeze the arc baffle 2415, and the telescopic rod 2414 will press the spring 2412. If the external force is too large, the plug 2413 installed at the bottom of the telescopic rod 2414 will combine with the jack 2411, the entire circuit will be connected, and the alarm 2417 will sound an alarm to remind people to pay attention to whether the shunt mechanism 3 is damaged. Example

[0028] like Figure 5-6 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the shunt mechanism 3 includes a base 30, the base 30 is mounted on the surface of the circuit breaker 1, a yoke 31 is arranged in the base 30, the yoke 31 is U-shaped, a static iron core 32 is arranged at the bottom center of the yoke 31, a coil 33 is arranged in the yoke 31, the static iron core 32 is located between the coils 33, a moving iron core 34 is arranged at intervals on the upper part of the static iron core 32, a pressure plate 35 is arranged on the upper part of the coil 33, the moving iron core 34 passes through the pressure plate 35, a shaft 36 is arranged on the upper part of the yoke 31, a torsion spring 38 is arranged on the surface of the shaft 36, a flip plate 39 is arranged at one end of the torsion spring 38, and a lever 37 is arranged on the flip plate 39;

[0029] Specifically, when the coil 33 is energized, the moving iron core 34 is pulled down by the static iron core 32, and the flip plate 39 is flipped by the moving iron core 34 pulling down, and the lever 37 can touch the circuit breaker switch. A circular hole is provided at the bottom center of the yoke 31, and a boss is provided on the static iron core 32. The boss on the static iron core 32 is inserted into the circular hole on the yoke to achieve fixation. A boss is provided on the coil 33, and a bayonet is provided on the pressure plate 35. The boss on the coil 33 is connected with the bayonet of the pressure plate 35. A notch is provided at one end of the moving iron core 34, and a buckle is provided at one end of the flip plate 39. The notch of the moving iron core 34 is connected with the buckle of the flip plate 39. A circular hole is provided on the flip plate 39, and the shaft 36 passes through the circular hole on the flip plate 39 and is fixed to the yoke 31. A slot is provided on the flip plate 39, and one end of the torsion spring 38 is fixed to the pressure plate 35, and the other end of the torsion spring 38 is connected to the slot of the flip plate 39. The base 30 and the yoke 31 are fixed by the buckle.

[0030] In actual application, the travel of the utility model can reach 5mm-7mm, the tripping force can be increased, and the starting current of the DC24V shunt release is less than 1.5A.

[0031] The following is a detailed description of the working principle of the universal molded case circuit breaker switch shunt device.

[0032] like Figure 1-6 As shown, the shunt mechanism 3 is installed inside the protective frame 20, the door body 23 is closed, and ventilation is performed through the ventilation hole 21 to ensure that the shunt mechanism 3 dissipates heat during operation. When a certain impact force is applied to the elastic arc plate 240, the elastic arc plate 240 will be deformed, the elastic arc plate 240 will squeeze the arc baffle 2415, and the telescopic rod 2414 will press the spring 2412. The entire device has a buffering effect on the applied external force to protect the shunt mechanism 3 from being affected. When the elastic arc plate 240 is deformed by the impact of external force, the elastic arc plate 240 will squeeze the arc baffle 2415, and the telescopic rod 2414 will press the spring 2 412. If the external force is too large, the plug rod 2413 installed at the bottom of the telescopic rod 2414 will combine with the socket 2411, the whole circuit will be connected, and the alarm 2417 will sound an alarm to remind people whether the shunt mechanism 3 is damaged. The overall shunt mechanism 3 has a simple structure, small size, easy assembly, flexible movement, strong working stability, and appropriate changes in the parameters of the coil 33 can output different tripping forces from the release, with low temperature rise, which solves the difficulty of using the release in circuit breakers with small frame grades. In addition, since it can output a larger tripping force, it can be applied to circuit breakers with current specifications that require a larger tripping force.

[0033] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A universal molded case circuit breaker switch shunt device, comprising a circuit breaker (1), characterized in that: A shunt mechanism (3) is mounted on the surface of the circuit breaker (1), and a protection mechanism (2) is mounted on the surface of the shunt mechanism (3); The protective mechanism (2) comprises a protective frame (20), the protective frame (20) being mounted on the surface of the shunt mechanism (3), a ventilation hole (21) being provided on one side of the protective frame (20), a hinge bar (22) being mounted on the surface of the protective frame (20), a door body (23) being fixedly connected to the surface of the hinge bar (22), and a protective member (24) being mounted on the surface of the door body (23).

2. A universal molded case circuit breaker switch shunt device according to claim 1, characterized in that: The protection member (24) comprises an elastic arc plate (240), wherein the elastic arc plate (240) is fixedly connected to the surface of the door body (23), and an anti-collision structure (241) is installed inside the elastic arc plate (240).

3. A universal molded case circuit breaker switch shunt device according to claim 2, characterized in that: The anti-collision structure (241) comprises a telescopic seat (2410), the telescopic seat (2410) being fixedly connected to the surface of the door body (23), a plug hole (2411) being installed inside the telescopic seat (2410), a spring (2412) being sleeved on the surface of the plug hole (2411), and an insertion rod (2413) being installed on the surface of the plug hole (2411).

4. A universal molded case circuit breaker switch shunt device according to claim 3, characterized in that: One end of the insertion rod (2413) is fixedly connected to a telescopic rod (2414), and one end of the telescopic rod (2414) is fixedly connected to an arc-shaped baffle (2415).

5. A universal molded case circuit breaker switch shunt device according to claim 4, characterized in that: A battery (2416) and an alarm (2417) are installed on the surface of the telescopic seat (2410), and the battery (2416) and the alarm (2417) are electrically connected to the socket (2411) and the plug rod (2413).

6. A universal molded case circuit breaker switch shunt device according to claim 1, characterized in that: The shunt mechanism (3) comprises a base (30), wherein the base (30) is mounted on the surface of the circuit breaker (1), wherein a yoke (31) is arranged inside the base (30), wherein the yoke (31) is U-shaped, wherein a static iron core (32) is arranged at the bottom center of the yoke (31), wherein a coil (33) is arranged inside the yoke (31), wherein the static iron core (32) is located between the coils (33), wherein a moving iron core (34) is arranged at intervals above the static iron core (32), wherein a pressure plate (35) is arranged above the coil (33), wherein the moving iron core (34) passes through the pressure plate (35), and wherein a shaft (36) is arranged above the yoke (31).

7. A universal molded case circuit breaker switch shunt device according to claim 6, characterized in that: A torsion spring (38) is provided on the surface of the shaft (36), a flip plate (39) is provided at one end of the torsion spring (38), and a lever (37) is provided on the flip plate (39).

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