Power transformation box fault monitoring device
By installing a reciprocating infrared thermal imager and a timing control module inside the transformer box, the problem of the inability to prevent cable or electrical switch aging in existing technologies is solved, and efficient fault monitoring and safety early warning of the transformer box are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG XINGHE ELECTRIC CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-05-05
AI Technical Summary
Existing transformer box fault monitoring equipment cannot prevent aging and wear of cables or electrical switches, which can lead to localized abnormal overheating of cables or electrical switches. This makes it impossible to detect potential faults in a timely manner, posing safety hazards such as fires.
An infrared thermal imager capable of reciprocating lifting is installed inside the transformer box. It monitors the working status of cables and electrical switches through thermal imaging scanning. Combined with a timer control module and limit switches, it achieves periodic scanning and transmits the scan data using a wireless transmission module.
It enables convenient and efficient monitoring of cables and electrical switches inside the transformer box, timely detection of potential faults, prevention of safety accidents, energy saving, and improved monitoring accuracy.
Smart Images
Figure CN224202575U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer box technology, and in particular to a transformer box fault monitoring device. Background Technology
[0002] A transformer box is a box in a power system that transforms, concentrates, and distributes electrical energy voltage and current. During the use of transformer boxes, in order to ensure the stability of the power system and prevent equipment failure, it is often necessary to monitor the transformer boxes for faults.
[0003] Currently, fault monitoring of transformer boxes mostly relies on current transformers, voltage transformers, protective relays, and residual current devices (RCDs). However, these monitoring and protection devices still have the following shortcomings in actual use:
[0004] Although current transformers, voltage transformers, protective relays, and residual current devices can monitor the current and voltage in the transformer box, they only cut off the power when the current or voltage in the transformer box exceeds the safe value. This means that these monitoring devices can only monitor and protect after the electrical components in the transformer box have been damaged, and cannot monitor and prevent transformer box faults.
[0005] Cables or electrical switches in the transformer box are prone to aging and wear during long-term use. When cables or electrical switches age or wear, local abnormal overheating may occur. If they are not replaced or maintained in time, short circuits and leakage may occur. In severe cases, fires and other safety accidents may occur. Existing fault monitoring equipment cannot monitor the aging and wear of cables or electrical switches.
[0006] Therefore, there is an urgent need for a transformer box fault monitoring device that can overcome the above-mentioned shortcomings. Utility Model Content
[0007] To overcome the shortcomings of the prior art, this utility model discloses a transformer box fault monitoring device. This utility model installs an infrared thermal imager capable of reciprocating lifting inside the transformer box, which can perform convenient and efficient thermal imaging scanning of the cables and electrical switches inside the transformer box. This allows staff to clearly and intuitively monitor the working status of electrical equipment based on the image data from the thermal imaging scan and promptly detect potential faults.
[0008] To achieve the above objectives, the present invention adopts the following technical solution:
[0009] A transformer box fault monitoring device includes a transformer box. The inner walls on both sides of the transformer box opening are provided with corresponding sliding grooves along the height of the transformer box. A horizontally positioned support rod is provided between two corresponding sliding grooves. A drive mechanism is provided within each sliding groove to drive the support rod to reciprocate up and down along the groove. An infrared thermal imager is provided on the upper part of the support rod to perform thermal imaging scanning of the interior of the transformer box as the support rod reciprocates up and down. A control terminal is provided to receive and transmit the scanning data from the infrared thermal imager and to control the drive mechanism and the infrared thermal imager.
[0010] Furthermore, a rectangular frame is provided on the upper part of the support rod, and a partition is provided inside the rectangular frame. The infrared thermal imager and the control terminal are installed in the lower part of the partition inside the rectangular frame, and a battery is provided on the upper part of the partition to power the infrared thermal imager and the control terminal.
[0011] Furthermore, the drive mechanism includes a motor, a screw, and a guide rod. A screw is rotatably installed in a groove on one side of the transformer box opening, and a guide rod is provided in a groove on the other side of the transformer box opening, also arranged along the axial direction of the groove. One end of the support rod has a threaded hole that passes through the support rod and is threadedly engaged with the screw. The other end of the support rod has a through hole that matches the guide rod. A motor corresponding to the screw and used to drive the screw to rotate is provided on one side of the upper part of the transformer box.
[0012] Furthermore, the control terminal includes a control module for controlling the motor and the infrared thermal imager, a data processing module for receiving scanning data from the infrared thermal imager, and a wireless transmission module for transmitting data.
[0013] Furthermore, the control module also includes a timing control module for timing start control of the motor and the infrared thermal imager.
[0014] Furthermore, the upper part of the rectangular frame is provided with a charging interface for circuit connection with the storage battery, and the top of the inner cavity of the transformer box is provided with a charging plug that corresponds to and is compatible with the charging interface.
[0015] Furthermore, the top of the transformer box is equipped with an openable housing, and the motor is fixedly installed inside the housing.
[0016] Compared with the prior art, the beneficial effects of this utility model are: by setting an infrared thermal imager that moves back and forth with the support rod, thermal imaging scanning can be performed on the cables and electrical switches inside the transformer box, which can detect potential faults in electrical equipment, such as poor cable connection, poor switch contact, and heat accumulation inside the equipment.
[0017] By setting a timer control module, the periodic thermal imaging scan of the transformer box can be achieved by starting the drive mechanism at regular intervals, which ensures the regular safety monitoring of the transformer box while also saving energy.
[0018] With limit switch A, after the drive mechanism drives the support rod down to the bottom of the transformer box, the motor in the drive mechanism can be switched in reverse conveniently and efficiently using limit switch A, so that the infrared thermal imager can rise to perform a secondary thermal imaging scan, thereby greatly improving the accuracy of the thermal imaging scan of the transformer box.
[0019] By setting limit switch B, when the drive mechanism drives the support rod to rise to the top of the transformer box, the limit switch B can be used to control the power outage and shutdown of the motor and infrared thermal imager, saving energy and realizing the fixed-point start and stop control of the support rod.
[0020] By setting up a charging plug and charging interface, the battery can be effectively charged and stored after the drive mechanism and infrared thermal imager are powered off at a fixed point via the limit mechanism B, thereby ensuring the long-term operation of the infrared thermal imager and the control terminal.
[0021] This invention utilizes an infrared thermal imager capable of reciprocating lifting and lowering installed inside a transformer box. This allows for convenient and efficient thermal imaging scanning of the cables and electrical switches within the box. This enables staff to clearly and intuitively monitor the operating status of electrical equipment based on the thermal imaging data, promptly identifying potential faults such as overheated cables or poor contact in electrical switches. This effectively prevents fires or other accidents, significantly improving the safety of transformer box operation. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the drive mechanism structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the support rod structure of this utility model;
[0025] Figure 4 This is a schematic diagram of the rectangular mounting bracket structure of this utility model.
[0026] In the diagram: 1. Drive mechanism; 2. Transformer box; 3. Slide rail; 4. Rectangular frame; 5. Infrared thermal imager; 6. Control terminal; 7. Support rod; 8. Box body; 9. Motor; 10. Charging plug; 11. Guide rod; 12. Screw; 13. Screw hole; 14. Limit switch A; 15. Through hole; 16. Limit switch B; 17. Charging interface; 18. Battery; 19. Partition plate. Detailed Implementation
[0027] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.
[0028] Please refer to the instruction manual appendix. Figure 1-4 This utility model provides a technical solution:
[0029] Example 1: A transformer box fault monitoring device includes a transformer box 2. The inner walls on both sides of the transformer box 2's opening are provided with corresponding sliding grooves 3 arranged along the height direction of the transformer box 2. A horizontally arranged support rod 7 is provided between two corresponding sliding grooves 3. A drive mechanism 1 is provided within each sliding groove 3 to drive the support rod 7 to reciprocate up and down along the sliding groove 3. Specifically, the drive mechanism 1 includes a motor 9, a screw 12, and a guide rod 11. A screw 12, arranged axially along the sliding groove 3, is rotatably installed within the sliding groove 3 on one side of the transformer box 2's opening. 2. A guide rod 11 is provided in the slide groove 3 on the other side of the box opening. One end of the support rod 7 is provided with a screw hole 13 that passes through the support rod 7 and is threaded with the screw rod 12. The other end of the support rod 7 is provided with a through hole 15 that matches the guide rod 11. A motor 9 is provided on one side of the upper part of the transformer box 2, which corresponds to the screw rod 12 and is used to drive the screw rod 12 to rotate. In order to protect the motor 9 from rain and dust, the top of the transformer box 2 is provided with an openable box 8. The motor 9 is fixedly installed in the box 8. The box 8 is provided with heat dissipation holes.
[0030] A rectangular frame 4 is provided on the upper part of the support rod 7. The rectangular frame 4 is fixed to the upper part of the support rod 7 by bolts. A partition 19 is provided inside the rectangular frame 4. The infrared thermal imager 5 and the control terminal 6 are installed in the lower part of the partition 19 inside the rectangular frame 4. A battery 18 for powering the infrared thermal imager 5 and the control terminal 6 is provided on the upper part of the partition 19. The infrared thermal imager 5 performs thermal imaging scanning of the inside of the transformer box 2 as the support rod 7 reciprocates. The control terminal 6 is used to receive and transmit the scanning data of the infrared thermal imager 5 and control the drive mechanism 1 and the infrared thermal imager 5. Specifically, the control terminal 6 is a programmable logic controller, which includes a control module for controlling the motor 9 and the infrared thermal imager 5, a data processing module for receiving the scanning data of the infrared thermal imager 5, and a wireless transmission module for transmitting data.
[0031] During routine inspections of transformer box 2, staff can start motor 9 and infrared thermal imager 5 via control terminal 6. By adjusting the forward and reverse rotation of motor 9 using the control module, the support rod 7 can be raised and lowered repeatedly. As the support rod 7 rises and falls, the infrared thermal imager 5 performs thermal imaging scans on the cables and electrical switches inside transformer box 2. The scanned images can be wirelessly transmitted to the staff's handheld terminal. By observing the through-the-air thermal imaging scans, staff can clearly and intuitively identify problems such as poor cable connections, poor switch contact, and heat accumulation inside the equipment within transformer box 2. They can then promptly replace aging cables or switches, effectively preventing safety accidents.
[0032] In Example 2, in order to realize the periodic automated fault monitoring of the transformer box 2, the control module also includes a timed control module for timed start control of the motor 9 and the infrared thermal imager 5. The timed control module adopts the principle of a timed controller and starts the motor 9 and the infrared thermal imager 5 at preset intervals. For example, if the preset interval is 48 hours, the motor 9 and the infrared thermal imager 5 will be started once every 48 hours to perform thermal imaging scanning inside the transformer box 2.
[0033] To ensure that the motor 9 and the infrared thermal imager 5 can automatically reverse after being started on a timed basis, and to stop the motor 9 and the infrared thermal imager 5 after power failure, the lower part of the support rod 7 is equipped with a limit switch A14 connected to the control terminal 6 and used to switch the motor 9 to reverse. Correspondingly, the motor 9 is equipped with a dedicated controller (such as a frequency converter, servo driver, etc.). The controller sets the initial rotation direction of the motor 9 each time it starts. That is, each time the motor 9 is started through the control terminal 6, the output shaft of the motor 9 rotates forward, driving the bolt 12 to rotate forward and drive the support rod 7 to descend. When the support rod 7 descends to the bottom of the transformer box 2, after the limit switch A14 touches the bottom of the transformer box 2, the control module in the control terminal 6 receives the sensing signal sent by the limit switch A14 and controls the motor 9 to reverse, thereby driving the support rod 7 to rise.
[0034] When the support rod 7 rises to the top of the transformer box 2, the infrared thermal imager 5 completes two reciprocating thermal imaging scans of the inside of the transformer box 2. In order to limit and stop the support rod 7 when it rises to the top and avoid collision between the infrared thermal imager 5 and the transformer box 2, the upper part of the rectangular frame 4 is equipped with a limit switch B16 connected to the control terminal 6 and used to control the power off of the motor 9 and the infrared thermal imager 5. When the control terminal 6 receives the sensing signal from the limit switch B16, the control terminal 6 cuts off the power to the motor 9 and the infrared thermal imager 5, so that the support rod 7 remains in its original position until the timer control module reaches the set interval time and issues a control command. The motor 9 starts again to drive the support rod 7 to descend in the default forward rotation, and the infrared thermal imager 5 starts to perform thermal imaging scans.
[0035] In the third embodiment, during the regular safety monitoring of the transformer box 2, since both the infrared thermal imager 5 and the control terminal 6 rely on the storage battery 18 for power, in order to ensure that the storage battery 18 can maintain sufficient power supply, the upper part of the rectangular frame 4 is provided with a charging interface 17 that is electrically connected to the storage battery 18, and the top of the inner cavity of the transformer box 2 is provided with a charging plug 10 that corresponds to and is adapted to the charging interface 17. The charging plug 10 is connected to the circuit inside the transformer box 2 for power supply. When the support rod 7 rises to the top of the transformer box 2, the charging interface 17 on the rectangular frame 4 is plugged into the charging plug 10 inside the transformer box 2. After the charging interface 17 is plugged into the charging plug 10, the limit switch B16 just touches the top of the transformer box 2 and sends a sensing signal, so that the support rod 7 stops at its original position on the top of the transformer box 2, which can continuously charge and store energy for the storage battery 18.
[0036] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.
Claims
1. A transformer box fault monitoring device, comprising a transformer box (2), characterized in that: The inner walls on both sides of the opening of the transformer box (2) are provided with corresponding sliding grooves (3) along the height direction of the transformer box (2). A horizontal support rod (7) is provided between the two corresponding sliding grooves (3). A drive mechanism (1) for driving the support rod (7) to move back and forth along the sliding groove (3) is provided in the sliding groove (3). The drive mechanism (1) includes a motor (9), a screw (12) and a guide rod (11). A sliding rod is rotatably installed in the sliding groove (3) on one side of the opening of the transformer box (2). 3) The screw (12) is arranged in the axial direction. The guide rod (11) is arranged in the slide groove (3) on the other side of the box opening of the transformer box (2). One end of the support rod (7) is provided with a screw hole (13) that passes through the support rod (7) and is threaded to the screw (12). The other end of the support rod (7) is provided with a through hole (15) that matches the guide rod (11). The upper side of the transformer box (2) is provided with a motor (9) that corresponds to the screw (12) and is used to drive the screw (12) to rotate. The upper part of the support rod (7) is provided with a rectangular frame (4), and the rectangular frame (4) is provided with a partition (19). The infrared thermal imager (5) and the control terminal (6) are installed in the lower part of the partition (19) inside the rectangular frame (4). The lower part of the partition (19) inside the rectangular frame (4) is provided with an infrared thermal imager (5) that performs thermal imaging scanning of the inside of the transformer box (2) as the support rod (7) moves back and forth, and a control terminal (6) for receiving and transmitting the scanning data of the infrared thermal imager (5) and controlling the drive mechanism (1) and the infrared thermal imager (5). The upper part of the partition (19) is provided with a battery (18) that supplies power to the infrared thermal imager (5) and the control terminal (6). The lower part of the support rod (7) is provided with a limit switch A (14) which is connected to the control terminal (6) and is used to switch the motor (9) in forward and reverse directions. The upper part of the rectangular frame (4) is provided with a limit switch B (16) which is connected to the control terminal (6) and is used to control the power off of the motor (9) and the infrared thermal imager (5). The upper part of the rectangular frame (4) is also provided with a charging interface (17) for circuit connection with the storage battery (18), and the top of the inner cavity of the transformer box (2) is provided with a charging plug (10) that is compatible with the charging interface (17).
2. The transformer box fault monitoring device according to claim 1, characterized in that: The control terminal (6) includes a control module for controlling the motor (9) and the infrared thermal imager (5), a data processing module for receiving scanning data from the infrared thermal imager (5), and a wireless transmission module for transmitting data.
3. The transformer box fault monitoring device according to claim 2, characterized in that: The control module also includes a timing control module for timing start control of the motor (9) and the infrared thermal imager (5).
4. The transformer box fault monitoring device according to claim 1, characterized in that: The transformer box (2) has an openable box (8) on top, and the motor (9) is fixedly installed inside the box (8).