An automatic power failure repair alarm device

Abstract

The utility model provides a kind of electric power fault automatic maintenance alarm device, it is related to electric power maintenance equipment technical field, and it includes: ventilation pipe, the inside of ventilation pipe is equipped with fan, and the outside welding of ventilation pipe has the connecting plate of round plate shape structure, and the surface of connecting plate is annular and is equipped with connecting hole.The utility model in the controller passes through the detection rod of intruding electrical cabinet inside, real-time contact cabinet air and monitor temperature, smoke concentration and other key parameters, when cabinet appears short circuit, overload and leads to local overheating, or the smoke of element burnout, detection rod can quickly convert physical parameter anomaly into electric signal and transmit to controller, solve the monitoring of fan failure and rely on regular artificial inspection, there is the risk of fault missed judgment in inspection interval, and lack active alarm mechanism, after electrical cabinet internal component failure, often accompanied by temperature anomaly rises, smoke generation and other early characteristics, but existing monitoring means is difficult to realize real-time sensing and active alarm.

Description

Technical Field

[0001] This utility model relates to the field of power maintenance equipment technology, and in particular to an automatic power fault detection and alarm device. Background Technology

[0002] In the operation of power systems, electrical cabinets serve as the core carrier for the control, protection, and distribution of power equipment. Their stable operation directly determines the reliability and safety of the power supply. With the increasing automation of industrial production and the growth of residential electricity demand, the application scenarios of electrical cabinets are becoming increasingly complex, and the density of integrated circuit breakers, contactors, relays, and other components is constantly increasing. If a fault occurs in the electrical cabinet during operation, it poses a serious threat to the stability of the power system and on-site safety. Therefore, it is necessary to install monitoring and early warning devices on the surface of the electrical cabinet.

[0003] However, the existing automatic maintenance alarm devices for electrical cabinets still have the following two shortcomings in use: First, monitoring fan failures relies heavily on regular manual inspections, which carries the risk of missing faults during the inspection intervals. If a fan stops and is not detected in time, the temperature inside the electrical cabinet will rise sharply in a short period of time, which may cause component burnout, insulation aging, or even short circuit and fire. Secondly, there is a lack of proactive alarm mechanisms. When components inside electrical cabinets, such as circuit breakers, cable joints, and contactors, malfunction, they are often accompanied by early signs such as abnormal temperature rise and smoke generation. However, existing monitoring methods are unable to achieve real-time perception and proactive alarm functions. Utility Model Content

[0004] This utility model relates to an automatic power fault detection and alarm device, which solves the problem that the monitoring of fan faults relies on regular manual inspections, which has the risk of missing fault detection during the inspection interval, and lacks an active alarm mechanism. After the internal components of the electrical cabinet fail, they are often accompanied by early signs such as abnormal temperature rise and smoke generation, but existing monitoring methods are difficult to achieve real-time perception and active alarm.

[0005] This utility model provides an automatic power fault detection and alarm device, specifically including: a ventilation pipe; A fan is installed inside the ventilation duct, and a circular plate-shaped connecting plate is welded to the outside of the ventilation duct. The surface of the connecting plate has a ring-shaped connecting hole. A placement plate is installed on the lower end face of the connecting plate. A power supply assembly and controller are installed on the outside of the placement plate, and a connecting duct is installed on the surface of the placement plate. A limiting cylinder is fixedly installed on the outer end face of the connecting plate, and a hollow groove is opened inside the limiting cylinder. A windshield is located outside the ventilation duct. A first baffle is installed on the outer circumference of the windshield, a second baffle is welded to the lower end face of the windshield, and plastic ribbons are installed on the surface of the windshield. A limiting rod is welded to the outer end face of the second baffle, and the end of the limiting rod is located inside the limiting cylinder; A connecting block is welded to the outer end face of the placement plate, and a slot is provided on the surface of the connecting block; The insert plate is fixedly installed on the front end surface of the second baffle, and the main body of the insert plate is a long strip structure.

[0006] Furthermore, two conductive plates are symmetrically mounted on the slot surface inside the connecting block, and conductive blocks are mounted on the surface of the insert plate.

[0007] Furthermore, when the insert plate is inserted into the slot inside the connecting block, both ends of the conductive block are respectively attached to the two conductive plates.

[0008] Furthermore, the power supply assembly is connected to the controller via wires, the conductive plate on the right is connected to the power supply assembly via wires, and the conductive plate on the left is connected to the controller via wires.

[0009] Furthermore, a signal transmitter is fixedly installed on the upper end face of the controller, an alarm is fixedly installed on the outer end face of the controller, and a probe rod is fixedly installed on the left end face of the controller, with the probe rod located inside the connecting pipe.

[0010] Furthermore, a sliding plate is fixedly installed at the end of the limiting rod, and the sliding plate is slidably engaged in the empty groove inside the limiting cylinder. A compression spring is sleeved on the outside of the limiting rod, and the compression spring is located inside the limiting cylinder.

[0011] This utility model provides an automatic power fault detection and alarm device, which has the following beneficial effects: 1. It adopts a pure mechanical linkage logic of "fan airflow thrust, compression spring reset, and plug-in conductive circuit", which does not rely on electronic components such as current sensors. When the fan is running normally, the airflow pushes the windshield to disengage the plug-in from the conductive circuit. When the fan stops, the spring resets and drives the plug-in to reconnect the conductive circuit, directly sending a fault signal to the controller. This avoids the defect of traditional current monitoring that "cannot identify stuck faults", and is not affected by voltage fluctuations or electromagnetic interference, making it more stable.

[0012] 2. It can sense parameters in real time and capture the initial state of a fault. The controller uses a probe that extends into the electrical cabinet to contact the air inside the cabinet in real time and monitor key parameters such as temperature and smoke concentration. When a short circuit or overload causes local overheating, or smoke is generated by component burnout, the probe can quickly convert the abnormal physical parameters into electrical signals and transmit them to the controller, realizing "fault detection at the inception". This avoids the problem of "missing the early fault window" in traditional manual inspections and reduces the risk of fault escalation from the source.

[0013] 3. After a fault is triggered, the controller immediately activates the alarm on the external end face. Even in noisy environments such as factory workshops and substations, it can quickly attract the attention of on-site personnel and guide them to locate the faulty device as soon as possible. The signal transmitter on the upper end of the controller can send fault signals to remote terminals such as the operation and maintenance center and the mobile phones of management personnel. Even during unattended periods such as night and holidays, operation and maintenance personnel can receive fault information in real time, plan maintenance routes in advance, and avoid serious consequences such as electrical cabinet burnout and power outage caused by long-term unresolved faults.

[0014] 4. The core components such as power supply, controller, detection rod, and conductive circuit are all integrated on the placement plate and connection plate, eliminating the problems of scattered wiring and splicing of multiple devices. At the same time, the plastic ribbon on the surface of the windshield can serve as a "visual inspection aid". Staff can quickly judge the operating status of the fan by observing whether the ribbon is moving without opening the cabinet, thus reducing the workload of inspection personnel. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram: Figure 1 A schematic diagram of the overall device structure of this utility model is shown; Figure 2 A schematic diagram of the ventilation pipe and connecting plate structure of this utility model is shown; Figure 3 A cross-sectional view of the limiting cylinder structure of this utility model is shown; Figure 4 A schematic diagram of the windshield and plastic ribbon structure of this utility model is shown; Figure 5 A schematic diagram of the connection structure between the alarm and the controller of this utility model is shown; Figure 6 A cross-sectional view of the connecting block of this utility model is shown.

[0018] List of reference numerals in the attached diagram: 1. Ventilation duct; 101. Connecting plate; 1011. Connecting hole; 102. Fan; 103. Placement plate; 1031. Connecting pipe; 2. Limiting cylinder; 3. Wind shield; 301. Plastic ribbon; 302. First baffle; 303. Second baffle; 4. Limiting rod; 401. Sliding plate; 5. Compression spring; 6. Power supply assembly; 7. Controller; 701. Detector rod; 702. Signal transmitter; 703. Alarm; 8. Connecting block; 801. Slot; 8011. Conductive plate; 9. Insert plate; 901. Conductive block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: Please refer to Figures 1 to 6 : This utility model proposes an automatic power fault detection and alarm device, including: a ventilation pipe 1; A fan 102 is installed inside the ventilation duct 1. A circular plate-shaped connecting plate 101 is welded to the outside of the ventilation duct 1. The surface of the connecting plate 101 has a ring-shaped connecting hole 1011. Workers can pass bolts through the connecting hole 1011 to install the connecting plate 101 into the ventilation hole on the surface of the electrical cabinet. A placement plate 103 is installed on the lower end face of the connecting plate 101. A power supply assembly 6 and a controller 7 are installed on the outside of the placement plate 103. A connecting pipe 1031 is installed on the surface of the placement plate 103. The connecting pipe 1031 is located inside the electrical cabinet. The limiting cylinder 2 is fixedly installed on the outer end face of the connecting plate 101, and a hollow groove is opened inside the limiting cylinder 2. The wind shield 3 is located outside the ventilation duct 1. A first baffle 302 is installed on the outer circumference of the wind shield 3, and a second baffle 303 is welded to the lower end face of the wind shield 3. A plastic ribbon 301 is installed on the surface of the wind shield 3. When the fan 102 is running, the air blown by the fan 102 blows towards the wind shield 3, applying an outward thrust to the wind shield 3. At this time, the insert plate 9 disengages from the slot 801 in the connecting block 8. Limiting rod 4 is welded to the outer end face of the second baffle 303, and the end of the limiting rod 4 is located inside the limiting cylinder 2; Connecting block 8 is welded to the outer end face of placement plate 103, and slot 801 is provided on the surface of connecting block 8; Insert plate 9 is fixedly installed on the front end surface of the second baffle 303. The main body of insert plate 9 is a long strip structure.

[0021] Two conductive plates 8011 are symmetrically mounted on the surface of the slot 801 inside the connecting block 8, and a conductive block 901 is mounted on the surface of the insert plate 9. When the insert plate 9 is inserted into the slot 801 inside the connecting block 8, the two ends of the conductive block 901 are respectively attached to the two conductive plates 8011. During use, during the reset process of the windshield 3, the insert plate 9 on the second baffle 303 is re-inserted into the slot 801 of the connecting block 8. The conductive block 901 on the surface of the insert plate 9 is tightly attached to the two conductive plates 8011 inside the slot 801, forming a closed loop. At this time, a closed loop is formed between the power supply component 6, the right conductive plate 8011, the conductive block 901, the left conductive plate 8011 and the controller 7. This loop sends a fan 102 fault trigger signal to the controller 7.

[0022] The power supply assembly 6 and the controller 7 are connected by wires. The conductive plate 8011 on the right is connected to the power supply assembly 6 by wires, and the conductive plate 8011 on the left is connected to the controller 7 by wires. When the plug 9 is inserted into the slot 801 inside the connecting block 8, a closed loop can be formed, and the alarm 703 will emit an audible and visual alarm.

[0023] The controller 7 has a signal transmitter 702 fixedly installed on its upper end face, an alarm 703 fixedly installed on its outer end face, and a detection rod 701 fixedly installed on its left end face. The detection rod 701 is located inside the connecting pipe 1031. During use, the detection rod 701 on the left end of the controller 7 is in constant contact with the air inside the electrical cabinet. When abnormalities such as a sudden temperature rise or smoke generation occur inside the cabinet due to short circuits or overloads, the detection rod 701 converts the abnormal physical parameters into an electrical signal and transmits it to the controller 7, which can also trigger an alarm.

[0024] The end of the limiting rod 4 is fixedly equipped with a sliding plate 401, which is slidably locked in the slot inside the limiting cylinder 2. A compression spring 5 is sleeved on the outside of the limiting rod 4. The compression spring 5 is located inside the limiting cylinder 2. During use, when the electrical cabinet malfunctions, the fan 102 stops running, the outward pushing force on the windshield 3 disappears, the elastic potential energy stored in the compression spring 5 is released, and the sliding plate 401 moves along the slot of the limiting cylinder 2 toward the connecting plate 101, thereby driving the limiting rod 4 and the windshield 3 to reset synchronously toward the connecting plate 101.

[0025] The working principle of this embodiment: In this invention, the worker passes bolts through the annular connecting holes 1011 on the surface of the connecting plate 101 to fix the entire device to the ventilation holes on the surface of the electrical cabinet, aligning the ventilation pipe 1 with the internal ventilation channel of the electrical cabinet. When the electrical cabinet and the device itself are operating normally, the actions of each component and the circuit status are as follows: The fan 102 inside the ventilation pipe 1 operates normally, generating outward airflow that blows towards the wind deflector 3 located outside the ventilation pipe 1. The airflow exerts a continuous outward pushing force on the wind deflector 3, causing the wind deflector 3 to move outward under the action of the pushing force, which in turn causes the limiting rod 4 on the surface of the second baffle 303 to slide outward synchronously. The sliding plate 401 at the end of the limiting rod 4 moves outward along the internal slot of the limiting cylinder 2, simultaneously compressing the compression spring 5 inside the limiting cylinder 2. At the same time, the insert plate 9 on the second baffle 303 moves outward with the windshield 3, completely disengaging from the slot 801 of the connecting block 8. The conductive block 901 on the surface of the insert plate 9 disconnects from the two conductive plates 8011 inside the slot 801, and the fault triggering circuit is in an open state. A detection rod 701 is installed on the left end of the controller 7. The detection rod 701 is located in the connecting pipe 1031 that connects to the inside of the electrical cabinet, and monitors the temperature, smoke concentration, and other key parameters inside the electrical cabinet in real time. Parameters; Since there is no abnormality, the controller 7 does not trigger an alarm or signal transmission. At the same time, the airflow of the fan 102 blows the plastic ribbon 301 on the surface of the windshield 3. The staff can visually judge that the fan 102 is in normal operation by observing the movement of the ribbon. When the electrical cabinet malfunctions, after the fan 102 stops running, the outward pushing force on the windshield 3 disappears, the elastic potential energy stored in the compression spring 5 is released, and the sliding plate 401 moves along the slot of the limit cylinder 2 towards the connecting plate 101, thereby driving the limit rod 4 and the windshield 3 to reset synchronously towards the connecting plate 101. During the reset process of the windshield 3, the second The insert plate 9 on the baffle 303 is reinserted into the slot 801 of the connecting block 8. The conductive block 901 on the surface of the insert plate 9 is tightly fitted with the two conductive plates 8011 in the slot 801, forming a closed loop. At this time, a closed loop is formed between the power supply assembly 6, the right conductive plate 8011, the conductive block 901, the left conductive plate 8011, and the controller 7. This loop sends a fan 102 fault trigger signal to the controller 7. After receiving the fault signal, the alarm 703 sounds an audible and visual alarm to remind on-site personnel to perform timely maintenance. The signal transmitter 702 sends a fault signal to the remote monitoring terminal. The signal enables remote fault early warning. In addition, the detection rod 701 on the left end of the controller 7 is in real time contact with the air inside the electrical cabinet. When the cabinet experiences abnormalities such as a sudden temperature rise or smoke generation due to short circuits or overloads, the detection rod 701 converts the abnormal physical parameters into an electrical signal and transmits it to the controller 7. This can also trigger an alarm. At this time, regardless of whether the fan 102 is running normally, after receiving the abnormal signal from the detection rod 701, the controller 7 will directly activate the alarm 703 for audible and visual alarms and send a fault signal to the remote location through the signal transmitter 702 to prevent damage to the electrical cabinet or safety accidents caused by the expansion of the fault.

Claims

1. An automatic power fault detection and alarm device, characterized in that, include: Ventilation duct (1), a fan (102) is installed inside the ventilation duct (1), a circular plate-shaped connecting plate (101) is welded to the outside of the ventilation duct (1), a connecting hole (1011) is opened in a ring on the surface of the connecting plate (101), a placement plate (103) is installed on the lower end face of the connecting plate (101), a power supply assembly (6) and a controller (7) are installed on the outside of the placement plate (103), and a connecting pipe (1031) is installed on the surface of the placement plate (103); a limiting cylinder (2), the limiting cylinder (2) is fixedly installed on the outer end face of the connecting plate (101), and a slot is opened inside the limiting cylinder (2); a wind shield (3), the wind shield (3) is located in the ventilation Outside the tube (1), a first baffle (302) is installed on the outer circumference of the windshield (3), a second baffle (303) is welded to the lower end face of the windshield (3), and a plastic ribbon (301) is installed on the surface of the windshield (3); a limiting rod (4) is welded to the outer end face of the second baffle (303), and the end of the limiting rod (4) is located inside the limiting cylinder (2); a connecting block (8) is welded to the outer end face of the placement plate (103), and a slot (801) is opened on the surface of the connecting block (8); an insert plate (9) is fixedly installed on the front end surface of the second baffle (303), and the main body of the insert plate (9) is a long strip structure.

2. The automatic power fault detection and alarm device according to claim 1, characterized in that, Two conductive plates (8011) are symmetrically installed on the surface of the slot (801) inside the connecting block (8), and a conductive block (901) is installed on the surface of the insert plate (9).

3. The automatic power fault detection and alarm device according to claim 1, characterized in that, When the insert plate (9) is inserted into the slot (801) inside the connecting block (8), the two ends of the conductive block (901) are respectively attached to the two conductive plates (8011).

4. The automatic power fault detection and alarm device according to claim 1, characterized in that, The power supply assembly (6) is connected to the controller (7) by a wire. The conductive plate (8011) on the right side is connected to the power supply assembly (6) by a wire, and the conductive plate (8011) on the left side is connected to the controller (7) by a wire.

5. The automatic power fault detection and alarm device according to claim 1, characterized in that, A signal transmitter (702) is fixedly installed on the upper end face of the controller (7), an alarm (703) is fixedly installed on the outer end face of the controller (7), and a probe rod (701) is fixedly installed on the left end face of the controller (7). The probe rod (701) is located inside the connecting pipe (1031).

6. The automatic power fault detection and alarm device according to claim 1, characterized in that, The end of the limiting rod (4) is fixedly installed with a sliding plate (401), which is slidably locked in the empty groove inside the limiting cylinder (2). A compression spring (5) is sleeved on the outside of the limiting rod (4), and the compression spring (5) is located inside the limiting cylinder (2).

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