Fault alarm device for remote temperature measurement of low-voltage power distribution equipment

Abstract

The invention belongs to the technical field of power distribution equipment, and discloses a fault alarm device for remote temperature measurement of low-voltage power distribution equipment, which comprises a power distribution cabinet body, an electric appliance assembly is connected in the power distribution cabinet body, a cabinet door is rotatably connected to the front surface of the power distribution cabinet body, and a controller I and a mounting plate are fixedly connected in the power distribution cabinet body. A switch button is arranged in the first controller. According to the invention, through the arrangement of the first controller, the switch button, the adjusting structure, the fault alarm and the temperature measurement module, the fault alarm device can drive the switch button to carry out position conversion through the cooperation of a second threaded rod, a first bevel gear and a second bevel gear when the equipment is overheated or other faults occur; the power supply in the power distribution cabinet body can be turned off in time, so that the safety and the reliability of power distribution equipment are improved, the labor intensity of operation and maintenance personnel is greatly reduced, the efficiency and the safety of fault processing are improved, and equipment damage or more serious safety accidents caused by untimely processing are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of power distribution equipment, and in particular relates to a fault alarm device for remote temperature measurement of low-voltage power distribution equipment. Background Art

[0002] Low-voltage power distribution equipment is a very important part of the power system. It is mainly used to convert high-voltage electricity into low-voltage electricity, and distribute and control it. The low-voltage power distribution system consists of distribution substations, high-voltage distribution lines, distribution transformers, low-voltage distribution lines and corresponding control and protection equipment. There are some problems in the operation of low-voltage power distribution equipment, such as equipment overheating, untimely fault detection, etc. These problems will not only affect the normal operation of the equipment, but may also cause safety accidents. A fault alarm device will be installed inside, and the internal temperature will be monitored in real time through the temperature sensor in the fault alarm device. The fault alarm device is mainly composed of a series of components such as temperature measurement module, communication module and data processing module.

[0003] However, most fault alarm devices do not have the function of directly shutting off the power supply of the distribution equipment. When the equipment overheats or other faults occur, the operation and maintenance personnel need to manually go to the site to shut down the power supply. This not only increases the response time, but may also cause equipment damage or cause more serious safety accidents due to untimely handling. Summary of the invention

[0004] The purpose of the present invention is to provide a fault alarm device for remote temperature measurement of low-voltage power distribution equipment to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a fault alarm device for remote temperature measurement of low-voltage power distribution equipment, comprising a power distribution cabinet, an electrical component is connected to the power distribution cabinet, a cabinet door is rotatably connected to the front of the power distribution cabinet, a controller 1 and a mounting plate are fixedly connected to the power distribution cabinet, a switch button is provided in the controller 1, a fault alarm is clamped in the mounting plate, a temperature measuring module is connected to the fault alarm, a protective plate 1 is rotatably connected to the mounting plate, a protective plate 2 is rotatably connected under the mounting plate, a protective structure is provided on the side of the mounting plate, the protective structure is connected to the protective plate 1, the protective structure is connected to the protective plate 2, an adjustment structure is provided under the protective structure, the adjustment structure is connected in the power distribution cabinet, and a clamping structure is provided on the back of the mounting plate, and the clamping structure is clamped to the power distribution cabinet.

[0006] As a further solution of the present invention: a second controller is fixedly connected to one side of the mounting plate, a connecting line is provided on one side of the second controller, and the second controller is connected to the fault alarm through the connecting line.

[0007] As a further solution of the present invention: the adjustment structure includes threaded rod two and bevel gear one, the threaded rod two is externally threadedly connected to an auxiliary plate, one side of the auxiliary plate is fixedly connected to a strap, the threaded rod two is externally connected to bevel gear two, the threaded rod two is rotatably connected to the front side of the distribution cabinet, and the bevel gear one is meshed with bevel gear two.

[0008] As a further solution of the present invention: the protective structure includes a threaded rod 1, a spur gear 1 and a spur gear 2, the top of the threaded rod 1 is connected to a motor, the spur gear 1 is fixedly connected to one side of the protective plate 1, the spur gear 2 is fixedly connected to one side of the protective plate 2, and the threaded rod 1 is rotatably connected to one side of the mounting plate.

[0009] As a further solution of the present invention: the threaded rod is externally threadedly connected to a moving plate, the moving plate is externally connected to a toothed plate, and the toothed plate is meshed with a spur gear.

[0010] As a further solution of the present invention: the tooth plate is meshed with the spur gear 2, the movable plate is slidably connected in the mounting plate, and the bevel gear 1 is fixedly connected below the threaded rod 1.

[0011] As a further solution of the present invention: the clamping structure includes a concave plate 1 and a concave plate 2, the concave plate 1 is connected to the upper part of the back of the fault alarm, the concave plate 2 is connected to the lower part of the back of the fault alarm, the concave plate 1 is rotatably connected to a guide rod inside, the guide rod is rotatably connected to a limit plate outside, the concave plate 2 is fixedly connected to a bolt inside, the concave plate 1 is clamped in the distribution cabinet, and the concave plate 2 is clamped in the distribution cabinet.

[0012] As a further solution of the present invention: a groove is provided in the limit plate, a nut is externally threadedly connected to the bolt, the nut overlaps the limit plate, the limit plate overlaps the power distribution cabinet, and the bolt is clamped in the groove.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The present invention is provided with a controller 1, a switch button, an adjustment structure, a fault alarm and a temperature measuring module, and the bevel gear 1 will rotate with the threaded rod 1. Since the bevel gear 1 is meshed with the bevel gear 2, the threaded rod 2 will rotate with the bevel gear 2, and the auxiliary plate will move on the surface of the threaded rod 2. After the auxiliary plate moves, the strap will contact the switch button, and the switch button will change position when it is thrust. Then the controller 1 can turn off the power supply in the distribution cabinet as a whole, and then transmit the fault problem inside the distribution cabinet in time. The fault alarm device cooperates with the threaded rod 2, the bevel gear 1 and the bevel gear 2. When the equipment overheats or other faults occur, the strap will drive the switch button to change position, and the power supply inside the distribution cabinet can be turned off in time, which not only improves the safety and reliability of the distribution equipment, but also greatly reduces the labor intensity of the operation and maintenance personnel, improves the efficiency and safety of fault handling, and avoids equipment damage or more serious safety accidents caused by untimely handling.

[0015] 2. The present invention sets a protective structure, and controller 2 will drive the motor to run, and threaded rod 1 will rotate accordingly, and the moving plate will move on the surface of threaded rod 1. Since the toothed plate on the surface of the moving plate is respectively meshed with spur gear 1 and spur gear 2, spur gear 1 and spur gear 2 will rotate as the moving plate moves, and protective plate 1 and protective plate 2 will rotate relatively accordingly. After rotation, protective plate 1 and protective plate 2 will seal the fault alarm, and can protect the components in the fault alarm, thereby preventing impurities generated by faults inside the distribution cabinet from contaminating the fault alarm and the temperature measurement module, thereby ensuring the flexibility of the fault alarm device.

[0016] 3. The present invention arranges a snap-in structure to snap the fault alarm into the mounting plate, and the concave plate 1 and the concave plate 2 on the side of the fault alarm will be inserted into the power distribution cabinet. When the fault alarm is fully fitted with the mounting plate, the limit plate will be driven to flip with the guide rod as the center. After flipping, the limit plate will overlap with the concave plate 2, and the bolt will be inserted into the groove, driving the nut to be threadedly connected with the bolt, and the nut will overlap with the limit plate, so that the fault alarm and the power distribution cabinet can realize the function of rapid assembly, which is convenient for subsequent replacement and repair of the fault alarm. Therefore, when maintenance or replacement is needed, it can be completed quickly, reducing downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a three-dimensional schematic diagram of the power distribution cabinet of the present invention;

[0019] Figure 3 It is a three-dimensional schematic diagram of the mounting plate of the present invention;

[0020] Figure 4 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the clamping structure of the present invention;

[0022] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of point B in the middle.

[0023] In the figure: 1. power distribution cabinet; 2. electrical components; 3. cabinet door; 4. controller 1; 5. mounting plate; 6. switch button; 7. protection structure; 701. threaded rod 1; 702. spur gear 1; 703. spur gear 2; 704. moving plate; 705. toothed plate; 706. motor; 8. adjustment structure; 801. threaded rod 2; 802. bevel gear 1; 803. bevel gear 2; 804. auxiliary plate; 805. strap; 9. clamping structure; 901. concave plate 1; 902. concave plate 2; 903. guide rod; 904. limit plate; 905. bolt; 906. groove; 907. nut; 10. fault alarm; 11. temperature measurement module; 12. controller 2; 13. connecting line; 14. protection plate 1; 15. protection plate 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figures 1 to 6 As shown, an embodiment of the present invention provides a fault alarm device for remote temperature measurement of low-voltage power distribution equipment, including a power distribution cabinet 1, an electrical component 2 is connected to the power distribution cabinet 1, a cabinet door 3 is rotatably connected to the front of the power distribution cabinet 1, a controller 1 4 and a mounting plate 5 are fixedly connected to the power distribution cabinet 1, a switch button 6 is provided in the controller 1 4, a fault alarm 10 is clamped in the mounting plate 5, a temperature measurement module 11 is connected to the fault alarm 10, a protective plate 14 is rotatably connected to the mounting plate 5, a controller 2 12 is fixedly connected to one side of the mounting plate 5, a connecting line 13 is provided on one side of the controller 2 12, and the controller 2 12 is connected to the fault alarm 10 through the connecting line 13;

[0026] By setting the controller 2 12 and the connecting line 13, since the controller 2 12 is connected to the fault alarm 10 through the connecting line 13, and the temperature measurement module 11 uses an infrared sensor for contact measurement, and then uses a single-chip microcomputer to process data and calculate the temperature, and finally uses a wireless communication sensor to transmit the data to a PC host computer for real-time observation, when the fault alarm 10 detects that the internal temperature is too high, it will apply instructions to the controller 2 12, so that the protective structure 7 and the adjustment structure 8 can realize the function of synchronous operation, thereby ensuring the flexibility of the fault alarm device;

[0027] A protective plate 2 15 is rotatably connected under the mounting plate 5, a protective structure 7 is provided on the side of the mounting plate 5, the protective structure 7 is connected to the protective plate 1 14, the protective structure 7 is connected to the protective plate 2 15, an adjustment structure 8 is provided under the protective structure 7, the adjustment structure 8 is connected in the power distribution cabinet 1, a clamping structure 9 is provided on the back of the mounting plate 5, the clamping structure 9 is clamped with the power distribution cabinet 1, the clamping structure 9 includes a concave plate 1 901 and a concave plate 2 902, the concave plate 1 901 is connected to the upper back of the fault alarm 10, and the concave plate 2 902 is connected to the fault alarm 10. At the lower part of the back of the alarm 10, a guide rod 903 is rotatably connected inside the concave plate 1 901, and a limit plate 904 is rotatably connected outside the guide rod 903, and a bolt 905 is fixedly connected inside the concave plate 2 902, and the concave plate 1 901 is clamped in the power distribution cabinet 1, and the concave plate 2 902 is clamped in the power distribution cabinet 1, and a groove 906 is provided in the limit plate 904, and a nut 907 is externally threadedly connected to the bolt 905, and the nut 907 overlaps with the limit plate 904, and the limit plate 904 overlaps with the power distribution cabinet 1, and the bolt 905 is clamped in the groove 906;

[0028] By setting the groove 906, the fault alarm 10 is clipped into the mounting plate 5, and the concave plate 1 901 and the concave plate 2 902 on the side of the fault alarm 10 will be interlaced with the power distribution cabinet 1. When the fault alarm 10 is completely fitted with the mounting plate 5, the limit plate 904 is driven to flip around the guide rod 903 as the center. After flipping, the limit plate 904 will overlap with the concave plate 2 902, and the bolt 905 will be interlaced with the groove 906, so that the groove 906 plays a certain auxiliary role in the rotation of the limit plate 904, avoiding the limit plate 904 from colliding with the bolt 905 when flipping;

[0029] The adjusting structure 8 includes a threaded rod 801 and a bevel gear 802, and the protective structure 7 includes a threaded rod 701, a spur gear 702 and a spur gear 703. The top of the threaded rod 701 is connected to a motor 706. The spur gear 702 is fixedly connected to one side of the protective plate 14. The spur gear 703 is fixedly connected to one side of the protective plate 15. The threaded rod 701 is rotatably connected to one side of the mounting plate 5. The threaded rod 701 is externally threadedly connected to a movable plate 704. The movable plate 704 is externally connected to a toothed plate 705. The toothed plate 705 is meshed with the spur gear 702. The toothed plate 705 is meshed with the spur gear 703. The movable plate 704 is slidably connected in the mounting plate 5. The bevel gear 802 is fixedly connected to the bottom of the threaded rod 701.

[0030] By setting the protection structure 7, the controller 2 12 will drive the motor 706 to operate, and the threaded rod 1 701 will rotate accordingly, and the moving plate 704 will move on the surface of the threaded rod 1 701. Since the toothed plate 705 on the surface of the moving plate 704 is meshed with the spur gear 1 702 and the spur gear 2 703 respectively, the spur gear 1 702 and the spur gear 2 703 will rotate along with the movement of the moving plate 704, and the protection plate 1 14 and the protection plate 2 15 will rotate relatively accordingly. After the rotation, the protection plate 1 14 and the protection plate 2 15 will seal the fault alarm 10, and can protect the components in the fault alarm 10, so as to avoid the impurities generated by the fault inside the distribution cabinet 1 from contaminating the fault alarm 10 and the temperature measuring module 11, thereby ensuring the flexibility of the fault alarm device;

[0031] The second threaded rod 801 is externally threadedly connected to an auxiliary plate 804, one side of the auxiliary plate 804 is fixedly connected to a strap 805, the second threaded rod 801 is externally connected to a second bevel gear 803, the second threaded rod 801 is rotatably connected to the front of the power distribution cabinet 1, and the first bevel gear 802 is meshed with the second bevel gear 803;

[0032] By setting the threaded rod 801, bevel gear 802 and bevel gear 803, the threaded rod 801 will rotate with the bevel gear 803, and the auxiliary plate 804 will move on the surface of the threaded rod 801. The strap 805 will contact the switch button 6 after the auxiliary plate 804 moves. When the equipment overheats or other faults occur, the strap 805 will drive the switch button 6 to change position, and the power supply inside the distribution cabinet 1 can be turned off in time, which not only improves the safety and reliability of the distribution equipment, but also greatly reduces the labor intensity of operation and maintenance personnel, improves the efficiency and safety of fault handling, and avoids equipment damage or more serious safety accidents caused by untimely handling.

[0033] The working principle and use process of the present invention:

[0034] When the fault alarm device is in use, the fault alarm 10 can be clipped into the mounting plate 5, and the concave plate 1 901 and the concave plate 2 902 on the side of the fault alarm 10 will be inserted into the power distribution cabinet 1. When the fault alarm 10 is completely fitted with the mounting plate 5, the limit plate 904 is driven to flip around the guide rod 903 as the center. After flipping, the limit plate 904 will overlap with the concave plate 2 902, and the bolt 905 will be inserted into the groove 906, driving the nut 907 to be threadedly connected with the bolt 905, and the nut 907 will overlap with the limit plate 904.

[0035] Then the controller 2 12 is connected to the fault alarm 10 through the connecting line 13. The temperature measurement module 11 uses an infrared sensor for contact measurement, and then processes the data to calculate the temperature through the single-chip microcomputer. Finally, the wireless communication sensor is used to transmit the data to the PC host computer for real-time observation. When the fault alarm 10 detects that the internal temperature is too high, it will apply instructions to the controller 2 12;

[0036] The controller 2 12 will drive the motor 706 to operate, and the threaded rod 1 701 will rotate accordingly, and the moving plate 704 will move on the surface of the threaded rod 1 701. Since the toothed plate 705 on the surface of the moving plate 704 is meshed with the spur gear 1 702 and the spur gear 2 703 respectively, the spur gear 1 702 and the spur gear 2 703 will rotate along with the movement of the moving plate 704, and the protective plate 1 14 and the protective plate 2 15 will rotate relatively accordingly. After the rotation, the protective plate 14 and the protective plate 2 15 will seal the fault alarm 10;

[0037] The bevel gear 802 will rotate with the threaded rod 701. Since the bevel gear 802 is meshed with the bevel gear 803, the threaded rod 801 will rotate with the bevel gear 803. The auxiliary plate 804 will move on the surface of the threaded rod 801. The strap 805 will contact the switch button 6 after the auxiliary plate 804 moves. The switch button 6 will change its position when it is pushed. Then the controller 4 can shut down the power supply in the distribution cabinet 1 as a whole, and then transmit the fault problem inside the distribution cabinet 1 in time.

[0038] The controller 1 in the present invention is of GGD model, which can control the overall power supply inside 1. The controller 2 is of Panasonic FP-XH model, which is mainly used to control the operation of motor 706. The temperature measurement module 11 is an MLX90621 infrared sensor, and the fault alarm 10 is provided with a series of components such as a wireless transmission module nRF24L01 and STM32F103. The MLX90621 infrared temperature measurement array sensor is an infrared array thermopile sensor with a 16×4 pixel dot matrix original, which is very suitable for non-contact multi-point temperature detection occasions. The MLX90621 chip has a 146×16bit RAM inside. ,The MLX90621 temperature sensor chip scans the ambient temperature sensor and the 64-element array thermopile according to the set delay rate and baud rate, and uses these output data and the calibration coefficients in the EEPROM to calculate the temperature of each pixel at different positions of the switch cabinet. The STM32 reads the PTAT data and IR data stored in the internal RAM of the MLX90621 sensor and the calibration data stored in the EEPROM through the I2C bus interface. The wireless transmission module nRF24L01 is the main device for communicating between the computer and the data acquisition system. Because it has the characteristics of large data volume, it can transmit image data.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fault alarm device for remote temperature measurement of low-voltage power distribution equipment, comprising a power distribution cabinet (1), characterized in that: The power distribution cabinet (1) is connected to an electrical component (2), the front of the power distribution cabinet (1) is rotatably connected to a cabinet door (3), the power distribution cabinet (1) is fixedly connected to a controller (4) and a mounting plate (5), the controller (4) is provided with a switch button (6), a fault alarm (10) is snapped into the mounting plate (5), the fault alarm (10) is connected to a temperature measurement module (11), a protective plate (14) is rotatably connected to the mounting plate (5), and the mounting plate (5) is fixedly connected to a controller (4) and a mounting plate (5). A second protective plate (15) is rotatably connected under the mounting plate (5); a protective structure (7) is provided on the side of the mounting plate (5); the protective structure (7) is connected to the first protective plate (14); the protective structure (7) is connected to the second protective plate (15); an adjustment structure (8) is provided under the protection structure (7); the adjustment structure (8) is connected to the power distribution cabinet (1); a clamping structure (9) is provided on the back of the mounting plate (5); the clamping structure (9) is clamped to the power distribution cabinet (1).

2. The fault alarm device for remote temperature measurement of low-voltage power distribution equipment according to claim 1 is characterized in that: A second controller (12) is fixedly connected to one side of the mounting plate (5), a connecting line (13) is provided on one side of the second controller (12), and the second controller (12) is connected to the fault alarm (10) via the connecting line (13).

3. The fault alarm device for remote temperature measurement of low-voltage power distribution equipment according to claim 1 is characterized in that: The adjustment structure (8) comprises a second threaded rod (801) and a first bevel gear (802); the second threaded rod (801) is externally threadedly connected to an auxiliary plate (804); one side of the auxiliary plate (804) is fixedly connected to a strap (805); the second threaded rod (801) is externally connected to a second bevel gear (803); the second threaded rod (801) is rotatably connected to the front side of the power distribution cabinet (1); and the first bevel gear (802) is meshed with the second bevel gear (803).

4. The fault alarm device for remote temperature measurement of low-voltage power distribution equipment according to claim 3 is characterized in that: The protective structure (7) includes a threaded rod (701), a spur gear (702) and a spur gear (703), the top end of the threaded rod (701) is connected to a motor (706), the spur gear (702) is fixedly connected to one side of a protective plate (14), the spur gear (703) is fixedly connected to one side of a protective plate (15), and the threaded rod (701) is rotatably connected to one side of a mounting plate (5).

5. The fault alarm device for remote temperature measurement of low-voltage power distribution equipment according to claim 4 is characterized in that: The threaded rod 1 (701) is externally threadedly connected to a moving plate (704), and the moving plate (704) is externally connected to a toothed plate (705), and the toothed plate (705) is meshed with a spur gear 1 (702).

6. The fault alarm device for remote temperature measurement of low-voltage power distribution equipment according to claim 5 is characterized in that: The toothed plate (705) meshes with the spur gear 2 (703), the movable plate (704) is slidably connected in the mounting plate (5), and the bevel gear 1 (802) is fixedly connected below the threaded rod 1 (701).

7. The fault alarm device for remote temperature measurement of low-voltage power distribution equipment according to claim 1 is characterized in that: The clamping structure (9) comprises a concave plate 1 (901) and a concave plate 2 (902); the concave plate 1 (901) is connected to the upper part of the back side of the fault alarm (10); the concave plate 2 (902) is connected to the lower part of the back side of the fault alarm (10); a guide rod (903) is rotatably connected inside the concave plate 1 (901); a limit plate (904) is rotatably connected outside the guide rod (903); a bolt (905) is fixedly connected inside the concave plate 2 (902); the concave plate 1 (901) is clamped inside the power distribution cabinet (1); and the concave plate 2 (902) is clamped inside the power distribution cabinet (1).

8. The fault alarm device for remote temperature measurement of low-voltage power distribution equipment according to claim 7 is characterized in that: The limiting plate (904) is provided with a groove (906), the bolt (905) is externally threadedly connected with a nut (907), the nut (907) overlaps with the limiting plate (904), the limiting plate (904) overlaps with the power distribution cabinet (1), and the bolt (905) is clamped in the groove (906).

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