An alarm device for preventing misoperation of circuit breakers

Abstract

This utility model discloses an alarm device for preventing misoperation of circuit breakers, belonging to the technical field of circuit breaker misoperation prevention. It includes a circuit breaker body, a photoelectric sensor, a current transformer, an isolation assembly, and an alarm assembly. The photoelectric sensor is disposed on the circuit breaker body, with its transmitter and receiver positioned opposite each other. The isolation assembly is clamped onto the operating switch of the circuit breaker body, and when the operating switch is closed, a portion of the isolation assembly is positioned between the transmitter and receiver to block the receiver from receiving the light signal emitted by the transmitter. The alarm assembly is electrically connected to the photoelectric sensor, and the current transformer is disposed at the output terminal of the circuit breaker body and electrically connected to the alarm assembly. This utility model can warn and remind operators of misoperation, effectively preventing power outages in the secondary circuits of operating equipment caused by misoperation.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker anti-misoperation technology, specifically to an alarm device for circuit breaker anti-misoperation. Background Technology

[0002] During equipment de-energization operations within a substation, it is necessary to disconnect the secondary circuit circuit breakers. Since a single relay protection cabinet or control cabinet contains the secondary circuits of multiple devices, operators are highly susceptible to accidentally disconnecting the power supply to the wrong circuit. However, existing circuit breakers lack alarm functions and cannot warn or alert operators to these errors, leading to power outages on the secondary circuits of operating equipment, causing shutdowns of normally functioning equipment, and disrupting the normal operation of production facilities. Utility Model Content

[0003] The main purpose of this utility model is to solve the above-mentioned technical problems to a certain extent, and to propose an alarm device for preventing misoperation of circuit breakers. This device can warn and remind operators of misoperation, and effectively avoid the problem of power outage of the secondary circuit power supply of the equipment during operation caused by misoperation.

[0004] The above-mentioned problems to be solved by this utility model are achieved through the following technical solution: A circuit breaker anti-misoperation alarm device is proposed, including a circuit breaker body, a photoelectric sensor, a current transformer, an isolation component, and an alarm component. The photoelectric sensor is disposed on the circuit breaker body, wherein the transmitter and receiver of the photoelectric sensor are arranged opposite to each other. The isolation component is clamped on the operating switch of the circuit breaker body, and when the operating switch of the circuit breaker body is closed, part of the isolation component is placed between the transmitter and the receiver to block the receiver from receiving the light signal emitted by the transmitter.

[0005] The alarm component is located on the inner wall of the external cabinet and is electrically connected to the photoelectric sensor. The current transformer is located at the outgoing line of the circuit breaker body and is electrically connected to the alarm component.

[0006] In some embodiments, the photoelectric sensor is a slotted photoelectric sensor, wherein the transmitter and receiver of the photoelectric sensor are disposed opposite each other on the inside of the slot.

[0007] In some embodiments, the isolation assembly includes a clamp and a handle. The clamp is clamped onto the operating switch of the circuit breaker, and the handle is movably connected to the clamp via a connector, such that the adjusted portion of the handle is positioned between the transmitter and the receiver.

[0008] In some embodiments, the handle is provided with an infrared receiving module, which is electrically connected to an indicator light provided on the surface of the handle.

[0009] In some embodiments, the alarm component includes a power supply module, an input module, a signal processing module, a voice alert module, an infrared emitting module, and a light-emitting diode (LED). The power supply module is electrically connected to the input module, the signal processing module, the voice alert module, the infrared emitting module, and the LED. The input module is electrically connected to the photoelectric sensor and the current transformer. The input terminal of the signal processing module is electrically connected to the input module. The output terminal of the signal processing module is electrically connected to the voice alert module and the infrared emitting module. The infrared emitting module is electrically connected to the LED.

[0010] The technical solution provided in this application has the following advantages compared with the prior art:

[0011] This invention determines whether the equipment is in operation by detecting the output signals of a photoelectric sensor and a current transformer. When the alarm device's signal processing module simultaneously receives the signal of the normally open contact closing from the photoelectric sensor and the current signal from the current transformer, it determines that the equipment is in operation. At the same time, the indicator light on the handle illuminates red to remind the operator that the circuit is in operation and the circuit breaker cannot be operated. This effectively warns the operator against misoperation and avoids the problem of power outages in the secondary circuit of the operating equipment caused by misoperation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a structural diagram of the anti-misoperation alarm device for circuit breakers according to this utility model;

[0014] Figure 2 This is a structural diagram of the partition component of this utility model;

[0015] Figure 3 This is a schematic diagram of the alarm component of this utility model.

[0016] Explanation of icon numbers:

[0017] 1-Circuit breaker body; 2-Photoelectric sensor; 201-Transmitter; 202-Receiver; 3-Current transformer; 4-Isolation assembly; 401-Clamping component; 402-Handle; 403-Connector; 404-Infrared receiving module; 405-Indicator light; 5-Alarm assembly; 501-Power supply module; 502-Input module; 503-Signal processing module; 504-Voice warning module; 505-Infrared transmitting module; 506-Light emitting diode. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] like Figure 1-3As shown, this utility model proposes an alarm device for preventing misoperation of a circuit breaker, including a circuit breaker body 1, a photoelectric sensor 2, a current transformer 3, an isolation assembly 4, and an alarm assembly 5. The photoelectric sensor 2 is disposed on the circuit breaker body 1, and is fixed by means including but not limited to adhesive bonding. The photoelectric sensor 2 is a slot-shaped photoelectric sensor 2, wherein the transmitter 201 and the receiver 202 of the photoelectric sensor 2 are arranged opposite to each other on the inner side of the slot, so that the light signal emitted by the transmitter 201 is directly transmitted into the receiver 202. The isolation assembly 4 includes a clamping member 401 and a handle 402. The clamping member 401 is clamped to the operating part of the circuit breaker body 1. In the operation switch, the handle 402 is movably connected to the clamp 401 through the connecting member 403, which allows the position of the handle 402 to be rotated and adjusted so that the adjusted part of the handle 402 is placed between the transmitter 201 and the receiver 202. When the operation switch of the circuit breaker body 1 is closed, part of the handle 402 is placed between the transmitter 201 and the receiver 202 to block the receiver 202 from receiving the light signal emitted by the transmitter 201. At the same time, the handle 402 is provided with an infrared receiving module 404, which is electrically connected to the indicator light 405 provided on the surface of the handle 402.

[0022] The alarm component 5 is located on the inner wall of the external cabinet and is electrically connected to the output signal line of the photoelectric sensor 2. The current transformer 3 is located at the outlet of the circuit breaker body 1 and is used to collect the current of the outlet of the circuit breaker body 1. The conductor at the outlet of the circuit breaker body 1 passes through the current transformer 3, and the output cable of the current transformer 3 is electrically connected to the alarm component 5.

[0023] Specifically, refer to Figure 3 As shown, the alarm component 5 includes a power supply module 501, an input module 502, a signal processing module 503, a voice warning module 504, an infrared emitting module 505, and a light-emitting diode 506. The power supply module 501 is electrically connected to the input module 502, the signal processing module 503, the voice warning module 504, the infrared emitting module 505, and the light-emitting diode 506. The input module 502 is electrically connected to the photoelectric sensor 2 and the current transformer 3. The input terminal of the signal processing module 503 is electrically connected to the input module 502, and the output terminal of the signal processing module 503 is electrically connected to the voice warning module 504 and the infrared emitting module 505. The voice warning module 504 includes a voice controller and a speaker, and the infrared emitting module 505 is electrically connected to the light-emitting diode.

[0024] When the circuit breaker body 1 is in the closed state, the handle of its operating switch is set upwards, and the clamping part 401 of the isolation component 4 is clamped on the handle of the operating switch. Then, the position of the handle 402 is adjusted so that the upper end of the handle 402 is in the middle of the groove of the photoelectric sensor 2. At this time, the light emitted by the transmitter 201 of the photoelectric sensor 2 is blocked by the handle 402, which blocks the receiver 202 from receiving the light signal emitted by the transmitter 201, so that the receiver 202 cannot receive the signal. At this time, the output contact of the photoelectric sensor 2 is activated, and the normally open output contact changes from open to closed. The input module 502 of the alarm component 5 receives the signal of the normally open contact of the photoelectric sensor 2 closing and transmits this signal to the signal processing module 503.

[0025] When the equipment is in operation, current flows through the secondary circuit. The current transformer 3 installed on the outgoing line of the circuit breaker body 1 detects the current signal and transmits this signal to the input module 502 of the alarm component 5. The input module 502 then transmits this signal to the signal processing module 503.

[0026] When the signal processing module 503 of the alarm component 5 simultaneously receives the signal of the normally open contact closing from the photoelectric sensor 2 and the current signal from the current transformer 3, it determines that the equipment is in operation. It then sends this signal as a start signal to the infrared emitting module 505. The infrared emitting module 505 emits a pulse light signal through the light-emitting diode 506. The pulse light signal carries coded information. After the infrared receiving module 404 in the handle 402 receives the signal, it drives the indicator light 405 on the handle 402 to light up red, reminding the operator that the circuit is in operation and the circuit breaker cannot be operated.

[0027] If the operator continues to operate, the clamping device must first be removed from the handle of the operating switch of the circuit breaker body 1. When the clamping device is removed from the operating switch of the circuit breaker body 1, the light emitted by the transmitter 201 of the photoelectric sensor 2 is not blocked, and the receiver 202 receives the light signal emitted by the transmitter 201. At this time, the normally open contact of the output of the photoelectric sensor 2 changes from closed to open. The input module 502 of the alarm component 5 receives the signal that the normally open contact of the photoelectric sensor 2 is open and transmits this signal to the signal processing module 503. At this time, there is still current flowing in the outgoing line of the circuit breaker body 1. The signal processing module 503 receives the current signal, but the contact of the photoelectric sensor 2 is open. At this time, it is determined to be a misoperation, and an alarm signal is issued to drive the voice warning module 504 to give a voice prompt alarm, which is played through the speaker to warn and remind the operator.

[0028] This device determines whether the equipment is in operation by detecting the output signals of photoelectric sensor 2 and current transformer 3. When the signal processing module 503 of the alarm device simultaneously receives the signal of the normally open contact closing from photoelectric sensor 2 and the current signal from current transformer 3, it determines that the equipment is in operation. At the same time, the indicator light 405 on the handle 402 lights up red to remind the operator that the circuit is in operation and the circuit breaker cannot be operated. This effectively warns the operator against misoperation and avoids the problem of power outage of the secondary circuit of the operating equipment due to misoperation.

[0029] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A circuit breaker anti-misoperation alarm device, characterized in that, The circuit breaker includes a circuit breaker body, a photoelectric sensor, a current transformer, an isolation assembly, a light-emitting diode, and an alarm assembly. The photoelectric sensor is disposed on the circuit breaker body, wherein the transmitter and receiver of the photoelectric sensor are arranged opposite to each other. The isolation assembly is clamped on the operating switch of the circuit breaker body, and when the operating switch of the circuit breaker body is closed, part of the isolation assembly is placed between the transmitter and the receiver to block the receiver from receiving the light signal emitted by the transmitter. The alarm component is located on the inner wall of the external cabinet and is electrically connected to the photoelectric sensor. The current transformer is located at the outgoing line of the circuit breaker body and is electrically connected to the alarm component.

2. The anti-misoperation alarm device for circuit breakers according to claim 1, characterized in that, The photoelectric sensor is a slotted photoelectric sensor, wherein the transmitter and receiver of the photoelectric sensor are arranged opposite each other on the inside of the slot.

3. The anti-misoperation alarm device for circuit breakers according to claim 1, characterized in that, The isolation assembly includes a clamp and a handle. The clamp is clamped onto the operating switch of the circuit breaker, and the handle is movably connected to the clamp via a connecting member, such that the adjusted part of the handle is positioned between the transmitter and the receiver.

4. The anti-misoperation alarm device for circuit breakers according to claim 3, characterized in that, The handle is equipped with an infrared receiving module, which is electrically connected to an indicator light on the surface of the handle.

5. The anti-misoperation alarm device for circuit breakers according to claim 1, characterized in that, The alarm component includes a power supply module, an input module, a signal processing module, a voice alert module, an infrared emitting module, and a light-emitting diode (LED). The power supply module is electrically connected to the input module, the signal processing module, the voice alert module, the infrared emitting module, and the LED. The input module is electrically connected to the photoelectric sensor and the current transformer. The input terminal of the signal processing module is electrically connected to the input module. The output terminal of the signal processing module is electrically connected to the voice alert module and the infrared emitting module. The infrared emitting module is electrically connected to the LED.

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