Monostable tripping coil module for reclosing mechanism

Abstract

The utility model discloses a monostable trip coil module for a reclosing mechanism, and particularly relates to the field of reclosing, which comprises a mounting rack, a sliding plate arranged on the side surface of the mounting rack, a trip coil arranged in the mounting rack, a fixed plate arranged between the trip coil and the mounting rack, and a toggle mechanism arranged below the trip coil and used for controlling the opening or closing of a circuit. The shifting mechanism comprises a rotating rod, an ejector block and an ejector rod, the rotating rod is arranged in the mounting frame, the ejector block is arranged at one end of the rotating rod, the ejector rod is arranged on the rotating rod, the trip coil is electrified to move, the ejector rod is controlled to move to drive the rotating rod to rotate, and therefore the ejector block is controlled to swing left and right. According to the utility model, after the trip coil is electrified, the top plate is driven to move, the top plate drives the push rod to move, the push rod drives the rotating rod to rotate, and the push block is driven to rotate, so that a fault circuit can be quickly cut off, accidents are prevented from expanding, and safe operation of the monostable trip coil module is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of reclosing, and more specifically, to a monostable tripping coil module for a reclosing mechanism. Background Art

[0002] In power systems, the reclosing mechanism is a crucial component for automatically restoring power after a transient fault. The monostable trip coil module ensures that the circuit breaker accurately disconnects the circuit when a fault is detected. Once the fault is resolved, it works in conjunction with the reclosing mechanism to automatically reclose the circuit. Upon receiving a trip signal, the monostable trip coil module activates the trip coil, causing the circuit breaker to operate and disconnect the circuit.

[0003] In actual use, the existing monostable trip coil module is easily affected by abnormal power supply voltage, which may cause the power supply voltage supplied to the monostable trip coil module to be too high or too low, further causing the coil to malfunction or even burn out, resulting in a malfunction, affecting the normal operation of the monostable trip coil module. Therefore, it is necessary to perform a quick circuit disconnect operation on the monostable trip coil module to prevent the accident from escalating and ensure the safe operation of the monostable trip coil module. Utility Model Content

[0004] The utility model provides a monostable trip coil module for a reclosing mechanism, and aims to solve the problem that the existing monostable trip coil module is easily affected by abnormal power supply voltage, resulting in the power supply voltage supplied to the monostable trip coil module being too high or too low, further causing the coil to malfunction or even burn out, resulting in a malfunction, affecting the normal operation of the monostable trip coil module.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a monostable trip coil module for a reclosing mechanism, comprising a mounting frame, a slide plate provided on the side of the mounting frame, a trip coil inside the mounting frame, a fixing plate provided between the trip coil and the mounting frame, a toggle mechanism provided under the trip coil, the toggle mechanism being used to control the circuit to be opened or closed; the toggle mechanism comprising a rotating rod, a top block and a top rod, the rotating rod being arranged inside the mounting frame, the top block being arranged at one end of the rotating rod, the top rod being arranged on the rotating rod, the trip coil being energized and moving, controlling the movement of the top rod to drive the rotating rod to rotate, thereby controlling the top block to swing left and right.

[0006] In a preferred embodiment, two top plates are provided below the trip coil, and the top rod is located between the two top plates.

[0007] In a preferred embodiment, a socket is provided on the rotating rod, the top rod is detachably connected to the rotating rod through the socket, and a groove is provided at one end of the rotating rod away from the top block.

[0008] In a preferred embodiment, the top block is located on the side of the mounting frame, the rotating rod is located below the tripping coil, and both ends are hinged inside the mounting frame.

[0009] In a preferred embodiment, two sliding grooves are provided on the surface of the slide plate, and a fixing block corresponding to the sliding grooves is provided on the surface of the mounting frame, and the fixing block is located inside the sliding grooves.

[0010] In a preferred embodiment, one side of the slide is configured as an L-end, and the bottom of the slide is configured as a convex end, which is located inside the groove.

[0011] The beneficial effects of the present invention are:

[0012] 1. The utility model sets a toggle mechanism. After the trip coil is energized, it drives the top plate to move, the top plate drives the top rod to move, the top rod drives the rotating rod to rotate, and drives the top block to rotate, thereby quickly controlling the opening and closing of the circuit, reducing accidents, and improving the safety of the monostable trip coil module.

[0013] 2. The utility model sets a slide plate, and the convex end of the slide plate is located inside the groove, which can limit the rotation range of the rotating rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the rotating rod and the tripping coil of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the rotating rod and the top rod of the utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the skateboard of the present utility model.

[0018] Figure 5 This is a schematic diagram of the opening and closing of the top block control circuit of the utility model.

[0019] The figures are marked as follows: 1. mounting frame; 2. slide plate; 21. L end; 22. convex end; 3. trip coil; 4. toggle mechanism; 41. rotating rod; 42. top block; 43. top rod; 44. top plate; 45. groove; 5. fixing plate; 6. slide groove; 7. fixing block. DETAILED DESCRIPTION

[0020] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Refer to the instruction manual Figures 1 to 5 A monostable trip coil module for a reclosing mechanism includes a mounting frame 1, a slide plate 2 is provided on the side of the mounting frame 1, a trip coil 3 is inside the mounting frame 1, a fixing plate 5 is provided between the trip coil 3 and the mounting frame 1, and a toggle mechanism 4 is provided below the trip coil 3. The toggle mechanism 4 is used to control the circuit to be opened or closed; the toggle mechanism 4 includes a rotating rod 41, a top block 42 and a top rod 43. The rotating rod 41 is arranged inside the mounting frame 1, the top block 42 is arranged at one end of the rotating rod 41, and the top rod 43 is arranged on the rotating rod 41. The trip coil 3 moves when energized, and the movement of the control top rod 43 drives the rotating rod 41 to rotate, thereby controlling the top block 42 to swing left and right.

[0022] In the above embodiment, the reclosing mechanism refers to a device or apparatus used to realize the automatic reclosing function in the power system. When a line fault occurs in the power system, the relay protection device will detect the fault and trigger the circuit breaker to trip, thereby cutting off the faulty part to prevent the accident from further expanding.

[0023] The monostable trip coil module is a part of an electrical control device, which is mainly used in the circuit breaker control of the power system. The monostable trip coil module is a part of an electrical control device, which is mainly used in the circuit breaker control of the power system.

[0024] It should be noted that when the relay protection device in the power system detects a fault (such as overcurrent, short circuit, etc.), it will send an electrical signal to the trip coil 3 (also called the trip coil). When the trip coil 3 is energized, it will generate a magnetic field. The magnetic field can overcome the mechanical force that keeps the circuit breaker closed (which may be the magnetic field generated by another trip coil 3 or other forms of holding force). When the force is large enough and as the magnetic field is established, the trip coil 3 will move rapidly, showing a pop-up or retraction action. This action is intended to provide a quick force to initiate the circuit breaker tripping process;

[0025] The movement of the trip coil 3 is transmitted to the circuit breaker's operating mechanism through a mechanical linkage or other linkage. The operating mechanism is the part of the circuit breaker that opens or closes the circuit. As the operating mechanism is pushed, the circuit breaker's main contacts begin to separate, "opening" the circuit. This entire process is very fast, typically taking only a few milliseconds, resulting in an "instantaneous" trip.

[0026] To speed up the circuit breaker's opening process, a trip spring is incorporated into the circuit breaker design. When the trip coil 3 is activated, the spring is released, using its stored energy to accelerate the circuit breaker's opening process, ensuring that the circuit is disconnected quickly and reliably.

[0027] Furthermore, two top plates 44 are provided below the tripping coil 3 , and the top rod 43 is located between the two top plates 44 .

[0028] It should be noted that the push rod 43 is located between the two top plates 44 , and when the trip coil 3 is activated, it can smoothly and accurately push the operating mechanism of the circuit breaker to achieve rapid tripping of the circuit breaker.

[0029] Furthermore, a socket is provided on the rotating rod 41 , and the top rod 43 is detachably connected to the rotating rod 41 through the socket. A groove 45 is provided at one end of the rotating rod 41 away from the top block 42 .

[0030] Furthermore, the top block 42 is located on the side of the mounting frame 1 , the rotating rod 41 is located below the tripping coil 3 , and both ends are hinged inside the mounting frame 1 .

[0031] It should be noted that after the trip coil 3 is energized, it drives the top plate 44 to move, the top plate 44 drives the top rod 43 to move, the top rod 43 drives the rotating rod 41 to rotate, and drives the top block 42 to rotate, thereby controlling the circuit to be opened and closed.

[0032] Further, refer to the instructions attached Figure 2 and Figure 4 Two slide grooves 6 are provided on the surface of the slide plate 2 , and a fixing block 7 corresponding to the slide grooves 6 is provided on the surface of the mounting frame 1 , and the fixing block 7 is located inside the slide grooves 6 .

[0033] Furthermore, referring to the drawings in the specification, one side of the slide plate 2 is configured as an L-end 21 , and the bottom of the slide plate 2 is configured as a convex end 22 , which is located inside the groove 45 .

[0034] It should be noted that when the rotating rod 41 rotates, the protruding end 22 on the slide plate 2 is located inside the groove 45, which can limit the rotation range of the rotating rod 41;

[0035] Push the slide plate 2 downward to make the fixing block 7 slide along the slide groove 6 , and move the protruding end 22 out of the groove 45 , thereby releasing the restriction on the rotating rod 41 .

[0036] Working principle: When the trip coil 3 is energized to overcome the magnetic field, the trip coil 3 pops out instantly, drives the top rod 43 to move through the top plate 44, and the top rod 43 drives the rotating rod 41 to rotate, causing the top block 42 to rotate, realizing instantaneous tripping of the switch, and the circuit breaker is quickly disconnected under the action of the trip spring.

[0037] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A monostable trip coil module for a reclosing mechanism, characterized in that: The invention comprises a mounting frame (1), a slide plate (2) is provided on the side of the mounting frame (1), a tripping coil (3) is provided inside the mounting frame (1), a fixing plate (5) is provided between the tripping coil (3) and the mounting frame (1), and a toggle mechanism (4) is provided below the tripping coil (3), and the toggle mechanism (4) is used to control the circuit to be opened or closed; The toggle mechanism (4) comprises a rotating rod (41), a top block (42) and a top rod (43); the rotating rod (41) is arranged inside the mounting frame (1); the top block (42) is arranged at one end of the rotating rod (41); and the top rod (43) is arranged on the rotating rod (41); the tripping coil (3) is moved by electricity, and the top rod (43) is controlled to move and drive the rotating rod (41) to rotate, thereby controlling the top block (42) to swing left and right.

2. The monostable trip coil module for a reclosing mechanism according to claim 1, characterized in that: Two top plates (44) are provided below the tripping coil (3), and the top rod (43) is located between the two top plates (44).

3. The monostable trip coil module for a reclosing mechanism according to claim 2, characterized in that: The rotating rod (41) is provided with a socket, and the top rod (43) is detachably connected to the rotating rod (41) through the socket. The rotating rod (41) is provided with a groove (45) at one end away from the top block (42).

4. The monostable trip coil module for a reclosing mechanism according to claim 3, characterized in that: The top block (42) is located on the side of the mounting frame (1), the rotating rod (41) is located below the tripping coil (3), and both ends are hinged inside the mounting frame (1).

5. The monostable trip coil module for a reclosing mechanism according to claim 4, characterized in that: The surface of the slide plate (2) is provided with two slide grooves (6), and the surface of the mounting frame (1) is provided with a fixed block (7) corresponding to the slide grooves (6), and the fixed block (7) is located inside the slide grooves (6).

6. The monostable trip coil module for a reclosing mechanism according to claim 5, characterized in that: One side of the slide plate (2) is configured as an L-end (21), and the bottom of the slide plate (2) is configured as a convex end (22), and the convex end (22) is located inside the groove (45).

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