An overvoltage monitor for outdoor high temperature distribution network

Abstract

The present invention discloses an overvoltage monitor for outdoor high-temperature distribution network. It includes a voltage fault monitor, a sealed end cover is installed on one side of the top surface of the voltage fault monitor, a sealed end sleeve is embedded and installed on one side of the outside of the voltage fault monitor, the cooling liquid pipe is installed between the two sides of the outer wall of the voltage fault monitor and the sealed end sleeve, the liquid storage chamber is opened at the position corresponding to the cooling liquid pipe inside the cooling liquid pipe, and the aluminum fin is installed on one side of the outside of the liquid storage chamber. The present invention circulates the cooling liquid inside the liquid storage chamber at the cooling liquid pipe to bring out the heat generated inside the voltage fault monitor, and discharges the heat through the thermal pad layer and the aluminum fin, thereby effectively improving the heat dissipation performance inside the voltage fault monitor, and solving the problem that the device is in a high-temperature environment for a long time, which is easy to cause equipment failure and damage.

Description

Technical Field

[0001] The invention relates to the technical field of power equipment fault monitoring devices, in particular to an outdoor high-temperature-proof distribution network overvoltage monitor. Background Art

[0002] Most of the power systems with ungrounded neutral points and grounded by arc suppression coils or high-resistance grounding methods in China use this grounding method. The full voltage monitoring and recording device is an intelligent integrated controller developed by our company for various faults in power systems. The device can be installed on the busbars of 3-35kV substations at all levels. By sampling and analyzing the secondary signals of voltage transformers and current transformers, it can quickly and accurately identify various fault states of the power grid and issue corresponding control, alarm, and locking instructions. It is used to identify and control common faults in the power grid that are prone to tripping accidents, such as voltage over-limit, PT disconnection, single-phase grounding, ferromagnetic resonance, lightning or operation overvoltage, system harmonics, etc. At the same time, it records and analyzes fault waveforms, and can monitor the phase voltage and line voltage of the normal operation of the system in real time.

[0003] However, the existing full voltage fault monitoring equipment has the problem that the device is in a high temperature environment for a long time when in use, which is easy to cause equipment failure and damage and cannot protect the equipment during voltage failure, resulting in large losses when the equipment fails. Summary of the invention

[0004] The purpose of the present invention is to provide an outdoor high-temperature resistant distribution network overvoltage monitor to solve the problem that the existing full-voltage fault monitoring equipment proposed in the above background technology is in a high-temperature environment for a long time during use, which easily causes equipment failure and damage and fails to protect the equipment during voltage failure, resulting in large losses when the equipment fails.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an outdoor overvoltage monitor for high-temperature distribution network, comprising a voltage fault monitor, a top surface side of the voltage fault monitor is provided with a sealed end cover, an outer side of the voltage fault monitor is embedded with a cooling mechanism, the cooling mechanism comprises a coolant pipe, a blower, a liquid storage chamber, a micro-circulation pump, a thermal conductive pad, an aluminum fin and a stainless steel filter, an outer side of the voltage fault monitor is embedded with a sealed end sleeve, the coolant pipe is provided between both sides of the outer wall of the voltage fault monitor and the sealed end sleeve, the outer side of the coolant pipe is sleeved with the micro-circulation pump, the inner side of the coolant pipe is provided with the liquid storage chamber at a position corresponding to the coolant pipe, the outer side of the liquid storage chamber is provided with the aluminum fin, and the connection between the inner wall of the aluminum fin and the liquid storage chamber is covered with the thermal conductive pad.

[0006] Furthermore, the blower is embedded and installed on the other side of the voltage fault monitor, and the stainless steel filter is embedded and installed on one side of the blower. A PLC controller is embedded and installed on the top surface of the voltage fault monitor, and the signal input ends of the blower and the micro-circulation pump are electrically connected to the signal output end of the PLC controller.

[0007] Furthermore, a fault protection mechanism is embedded and installed at the top of the voltage fault monitor corresponding to the position of the sealed end cover, and the fault protection mechanism includes a lifting plate, a telescopic insulating column, a supporting spring, a guide plate, a paddle plate, a dense coil, a sparse coil, an insulating gasket, a driven gear plate, a guide plate and a driving gear plate. The guide plate is embedded and installed at the top of the voltage fault monitor corresponding to the position of the sealed end cover, the lifting plate is embedded and installed in the middle of the top of the guide plate, the telescopic insulating columns are installed on both sides of the bottom of the lifting plate, the support spring is sleeved on the outside of the lifting plate corresponding to the top of the guide plate, and the paddle plate is installed on the top of the lifting plate.

[0008] Furthermore, the dense coil is sleeved and installed on one side of the guide plate, the sparse coil is sleeved and installed on one side of the dense coil, and the insulating gasket is sleeved and installed on one side of the sparse coil.

[0009] Furthermore, the driven gear disc is sleeved and installed in the middle part of the guide disc, the guide plate is fixedly installed on the bottom end of the driven gear disc, and the driving gear disc is meshed and connected to one side of the outer side of the driven gear disc.

[0010] Furthermore, the two sides of the outside of the lifting plate are rotatably connected to the top of the voltage fault monitor through a fixed support plate, a fixed shaft is installed between the fixed support plate and the sealing end cover, and a fastening screw ring is installed on the outside of the fixed shaft, an acrylic transparent plate is embedded in one side of the outer wall of the sealing end cover, and a sealing gasket is installed on the bottom end of the sealing end cover.

[0011] Furthermore, ethylene glycol type coolant is stored in the liquid storage chamber, and the material of the thermal conductive pad layer is thermal conductive silicone sheet material.

[0012] Furthermore, a wiring harness mechanism is embedded and installed at the top of both sides of the exterior of the voltage fault monitor corresponding to the position of the guide plate, and the wiring harness mechanism includes a wiring harness ring, a rubber pad, a wiring harness groove and a compression spring. The wiring harness ring is embedded and installed at the top of both sides of the exterior of the voltage fault monitor corresponding to the position of the guide plate, and the rubber pads are installed on both sides of the wiring harness ring. The wiring harness groove is opened between the two rubber pads, and the bottom end of the rubber pad is fixedly connected to the inner wall of the wiring harness ring by the compression spring.

[0013] Furthermore, screw holes are provided on both sides of the exterior of the voltage fault monitor, and the outer wall surface of the voltage fault monitor is coated with an anti-rust coating.

[0014] Furthermore, a liquid injection port is embedded and installed on one side of the outer wall of the sealing end sleeve, and a sealing rubber plug is embedded and installed inside the liquid injection port through a thread.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention is provided with a cooling mechanism, and the coolant in the liquid storage chamber is circulated in the coolant pipe through a micro-circulation pump, so as to bring out the heat generated inside the voltage fault monitor, and discharge the heat through the thermal pad layer and the aluminum fins. At the same time, the blower and the stainless steel filter promote the air flow inside the voltage fault monitor, thereby effectively improving the heat dissipation performance inside the voltage fault monitor, and solving the problem that the device is in a high temperature environment for a long time, which is easy to cause equipment failure and damage.

[0017] By providing a fault protection mechanism, by controlling the driving gear plate and the driven gear plate to move the guide vane to the positions of the dense coil, sparse coil and insulating gasket respectively, and by connecting different energized coils, the output voltage of the device can be adjusted according to actual usage requirements, and by connecting the insulating gasket, the overall power-off protection of the equipment can be achieved, thereby protecting the equipment during voltage failure and effectively reducing the loss during equipment failure.

[0018] By providing a wire harness mechanism, the bottom end of the rubber pad is supported by a compression spring, and the power cord inside the voltage fault monitor is clamped and fixed by the wire harness groove at the rubber pad, thereby improving the firmness of the installation of the power cord inside the voltage fault monitor and ensuring the orderliness and aesthetics of the arrangement of the power cord inside the voltage fault monitor at the wire harness ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the cold removal mechanism in the embodiment;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the mechanism for installing the lifting plate in the embodiment;

[0022] Figure 4 for Figure 1 A schematic structural diagram of a guide vane installation mechanism in an embodiment;

[0023] Figure 5 for Figure 1 A schematic structural diagram of a wire harness mechanism in an embodiment.

[0024] Figure numerals: 1. Voltage fault monitor; 2. Sealed end cover; 3. Cooling mechanism; 301. Cooling liquid pipe; 302. Blower; 303. Liquid storage chamber; 304. Micro circulation pump; 305. Thermal conductive pad; 306. Aluminum fins; 307. Stainless steel filter; 4. Fault protection mechanism; 401. Lifting plate; 402. Telescopic insulating column; 403. Support spring; 404. Guide plate; 405. Paddle plate; 406. Dense coil; 407. Sparse coil; 408. Insulating gasket; 409. Driven gear plate; 410. Guide plate; 411. Driving gear plate; 5. PLC controller; 6. Fixed support plate; 7. Cable harness mechanism; 701. Cable harness ring; 702. Rubber pad; 703. Cable harness groove; 704. Compression spring; 8. Sealed end sleeve. DETAILED DESCRIPTION

[0025] 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.

[0026] Please also read Figure 1-Figure 5 , wherein an outdoor overvoltage monitor for high temperature distribution network includes a voltage fault monitor 1, including a voltage fault monitor 1, a sealed end cover 2 is installed on one side of the top surface of the voltage fault monitor 1, and a cooling mechanism 3 is embedded and installed on one side of the outside of the voltage fault monitor 1. The cooling mechanism 3 includes a cooling liquid pipe 301, a blower 302, a liquid storage chamber 303, a micro circulation pump 304, a thermal pad 305, an aluminum fin 306 and a stainless steel filter 307. The voltage fault monitor A sealed end sleeve 8 is embedded on one side of the outside of the instrument 1, and a coolant pipe 301 is installed between the two sides of the outer wall of the voltage fault monitor 1 and the sealed end sleeve 8. A micro-circulation pump 304 is installed on the outside of the coolant pipe 301, and a liquid storage chamber 303 is opened inside the coolant pipe 301 at a position corresponding to the coolant pipe 301. An aluminum fin 306 is installed on one side of the outside of the liquid storage chamber 303, and a thermal conductive pad layer 305 is attached to the connection between the inner wall of the aluminum fin 306 and the liquid storage chamber 303.

[0027] A blower 302 is embedded and installed on the other side of the voltage fault monitor 1, and a stainless steel filter 307 is embedded and installed on one side of the blower 302. A PLC controller 5 is embedded and installed on the top surface of the voltage fault monitor 1. The signal input ends of the blower 302 and the micro-circulation pump 304 are electrically connected to the signal output ends of the PLC controller 5. The start and stop of the blower 302 and the micro-circulation pump 304 can be controlled by the PLC controller 5, thereby ensuring the stable performance of the device during operation.

[0028] A fault protection mechanism 4 is embedded and installed at the top of the voltage fault monitor 1 corresponding to the position of the sealed end cover 2. The fault protection mechanism 4 includes a lifting plate 401, a telescopic insulating column 402, a support spring 403, a guide plate 404, a dial plate 405, a dense coil 406, a sparse coil 407, an insulating gasket 408, a driven gear plate 409, a guide plate 410 and a driving gear plate 411. The guide plate 404 is embedded and installed at the top of the voltage fault monitor 1 corresponding to the position of the sealed end cover 2. The lifting plate 401 is embedded and installed in the middle of the top of the guide plate 404. Telescopic insulating columns 402 are installed on both sides of the bottom of the lifting plate 401. A support spring 403 is installed on the outside of the lifting plate 401 corresponding to the top of the guide plate 404, and a dial plate 405 is installed on the top of the lifting plate 401.

[0029] A dense coil 406 is sleeved and installed on one side of the inner part of the guide disc 404, a sparse coil 407 is sleeved and installed on one side of the dense coil 406, an insulating gasket 408 is sleeved and installed on one side of the sparse coil 407, a driven gear disc 409 is sleeved and installed in the middle part of the guide disc 404, a guide plate 410 is fixedly installed on the bottom end of the driven gear disc 409, and a driving gear disc 411 is meshed and connected on one side of the driven gear disc 409. By controlling the driving gear disc 411 and the driven gear disc 409 to respectively move the guide plate 410 to the positions of the dense coil 406, the sparse coil 407 and the insulating gasket 408, the output voltage of the device can be adjusted according to actual use requirements by connecting different energized coils, and by connecting the insulating gasket 408, the overall power-off protection of the equipment can be achieved, thereby protecting the equipment during voltage failure and effectively reducing the loss during equipment failure.

[0030] The two sides of the outside of the lifting plate 401 are rotatably connected to the top of the voltage fault monitor 1 through the fixed support plate 6. A fixed shaft is installed between the fixed support plate 6 and the sealing end cover 2, and a fastening screw ring is installed on the outside of the fixed shaft. An acrylic transparent plate is embedded in one side of the outer wall of the sealing end cover 2, and a sealing gasket is installed on the bottom end of the sealing end cover 2. The staff manually rotates the sealing end cover 2 at the position of the fixed support plate 6, and by turning the dial plate 405, the telescopic insulating column 402 at the bottom of the lifting plate 401 is connected to different positions inside the guide plate 404, thereby realizing manual adjustment of the internal voltage of the voltage fault monitor 1, effectively improving the convenience of the voltage equipment during later detection and maintenance.

[0031] In order to ensure the anti-corrosion and antifreeze performance of the coolant in the liquid storage chamber 303 and effectively extend the actual service life of the liquid storage chamber 303, ethylene glycol coolant is stored in the liquid storage chamber 303, and the material of the thermal pad layer 305 is a thermally conductive silicone sheet material.

[0032] A wire harness mechanism 7 is embedded and installed at the top of both sides of the voltage fault monitor 1 at the position corresponding to the guide plate 404. The wire harness mechanism 7 includes a wire harness ring 701, a rubber pad 702, a wire harness groove 703 and a compression spring 704. A wire harness ring 701 is embedded and installed at the top of both sides of the voltage fault monitor 1 at the position corresponding to the guide plate 404. Rubber pads 702 are installed on both sides of the wire harness ring 701. A wire harness groove 703 is opened between the two rubber pads 702. The bottom end of the rubber pad 702 is fixedly connected to the inner wall of the wire harness ring 701 by a compression spring 704. The bottom end of the rubber pad 702 is supported by the compression spring 704, and the power cord inside the voltage fault monitor 1 is clamped and fixed by the wire harness groove 703 at the rubber pad 702, thereby improving the firmness of the power cord installed inside the voltage fault monitor 1 and ensuring the orderliness and aesthetics of the arrangement of the power cord inside the voltage fault monitor 1 at the wire harness ring 701.

[0033] Screw holes are opened on both sides of the outside of the voltage fault monitor 1, and the outer wall surface of the voltage fault monitor 1 is coated with an anti-rust coating. The screw holes can facilitate the voltage fault monitor 1 to be embedded in the distribution cabinet, and the anti-rust coating can improve the corrosion resistance of the surface of the voltage fault monitor 1.

[0034] A liquid injection port is embedded in one side of the outer wall of the sealing end sleeve 8, and a sealing rubber plug is embedded in the inside of the liquid injection port through a thread. The liquid injection port allows staff to regularly replace the coolant inside the liquid storage chamber 303, which is beneficial to ensure that the cooling mechanism 3 cools down the internal equipment of the voltage fault monitor 1, and avoids the voltage fault monitor 1 being in a high temperature environment for a long time, causing damage to the device.

[0035] In summary, the present invention provides an outdoor anti-high temperature distribution network overvoltage monitor. When working, first, the coolant in the liquid storage chamber 303 is circulated at the coolant pipe 301 through the micro-circulation pump 304 to bring out the heat generated inside the voltage fault monitor 1, and the heat is discharged through the thermal pad layer 305 and the aluminum fin 306. At the same time, the blower 302 and the stainless steel filter 307 promote the air flow inside the voltage fault monitor 1, thereby effectively improving the heat dissipation performance inside the voltage fault monitor 1, and solving the problem that the device is in a high temperature environment for a long time, which is easy to cause equipment failure and damage;

[0036] Then, by controlling the driving toothed disc 411 and the driven toothed disc 409 to move the guide plate 410 to the positions of the dense coil 406, the sparse coil 407 and the insulating gasket 408 respectively, the output voltage of the device can be adjusted according to actual use requirements by connecting different energized coils, and by connecting the insulating gasket 408, the whole device can be powered off to protect it, thus protecting the device in the event of a voltage failure and effectively reducing the loss in the event of a device failure.

[0037] Next, by turning the dial plate 405, the telescopic insulating column 402 at the bottom end of the lifting plate 401 is connected to different positions inside the guide plate 404, so that the internal voltage of the voltage fault monitor 1 can be manually adjusted, which effectively improves the convenience of the voltage equipment during later detection and maintenance;

[0038] Finally, the bottom end of the rubber pad 702 is supported by the compression spring 704, and the power cord inside the voltage fault monitor 1 is clamped and fixed by the wire groove 703 at the rubber pad 702, thereby improving the firmness of the power cord installed inside the voltage fault monitor 1 and ensuring the orderliness and aesthetics of the arrangement of the power cord inside the voltage fault monitor 1 at the wire ring 701.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] 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. An outdoor high temperature protection distribution network overvoltage monitor, comprising a voltage fault monitor (1), characterized in that: A sealing end cover (2) is installed on one side of the top surface of the voltage fault monitor (1); a cooling mechanism (3) is embedded on one side of the outside of the voltage fault monitor (1); the cooling mechanism (3) comprises a cooling liquid pipe (301), a blower (302), a liquid storage chamber (303), a micro-circulation pump (304), a thermal pad (305), an aluminum fin (306) and a stainless steel filter (307); a sealing end sleeve (8) is embedded on one side of the outside of the voltage fault monitor (1); and the outer wall of the voltage fault monitor (1) is provided with a sealing end cover (2). The cooling liquid pipe (301) is installed between both sides and the sealing end sleeve (8), the micro-circulation pump (304) is installed on the outside of the cooling liquid pipe (301), the liquid storage chamber (303) is opened inside the cooling liquid pipe (301) at a position corresponding to the cooling liquid pipe (301), the aluminum fin (306) is installed on one side of the outside of the liquid storage chamber (303), and the thermal conductive pad layer (305) is installed on the connection between the inner wall of the aluminum fin (306) and the liquid storage chamber (303); A fault protection mechanism (4) is embedded and installed at the top of the inner part of the voltage fault monitor (1) corresponding to the position of the sealing end cover (2), and the fault protection mechanism (4) includes a lifting plate (401), a telescopic insulating column (402), a supporting spring (403), a guide plate (404), a paddle (405), a dense coil (406), a sparse coil (407), an insulating gasket (408), a driven gear plate (409), a guide plate (410) and a driving gear plate (411). The guide plate (404) is embedded and installed at the top of the interior of the monitor (1) corresponding to the position of the sealing end cover (2), the lifting plate (401) is embedded and installed in the middle of the top of the guide plate (404), the telescopic insulating columns (402) are installed on both sides of the bottom of the lifting plate (401), the support spring (403) is sleeved and installed on the outside of the lifting plate (401) corresponding to the top of the guide plate (404), and the dial plate (405) is installed at the top of the lifting plate (401).

2. The outdoor high temperature protection distribution network overvoltage monitor according to claim 1, characterized in that: The blower (302) is embedded and installed on the other side of the exterior of the voltage fault monitor (1), and the stainless steel filter (307) is embedded and installed on one side of the exterior of the blower (302). A PLC controller (5) is embedded and installed on the top surface of the exterior of the voltage fault monitor (1), and the signal input ends of the blower (302) and the micro-circulation pump (304) are both electrically connected to the signal output end of the PLC controller (5).

3. The outdoor high temperature protection distribution network overvoltage monitor according to claim 1, characterized in that: The dense coil (406) is sleeved and installed on one side of the guide plate (404), the sparse coil (407) is sleeved and installed on one side of the dense coil (406), and the insulating gasket (408) is sleeved and installed on one side of the sparse coil (407).

4. The outdoor high temperature protection distribution network overvoltage monitor according to claim 3, characterized in that: The driven gear disc (409) is sleeved and installed in the middle of the guide disc (404), the guide plate (410) is fixedly installed at the bottom end of the driven gear disc (409), and the driving gear disc (411) is meshedly connected to one side of the outside of the driven gear disc (409).

5. The outdoor high temperature protection distribution network overvoltage monitor according to claim 4, characterized in that: The two sides of the outside of the lifting plate (401) are rotatably connected to the top of the voltage fault monitor (1) via a fixed support plate (6); a fixed shaft is installed between the fixed support plate (6) and the sealing end cover (2), and a fastening screw ring is installed on the outside of the fixed shaft; an acrylic transparent plate is embedded in one side of the outer wall of the sealing end cover (2), and a sealing gasket is installed on the bottom end of the sealing end cover (2).

6. The outdoor high temperature protection distribution network overvoltage monitor according to claim 1, characterized in that: The liquid storage chamber (303) stores ethylene glycol type coolant inside, and the thermal conductive pad layer (305) is made of thermal conductive silicone sheet material.

7. The outdoor high temperature protection distribution network overvoltage monitor according to claim 3 is characterized in that: A wire harness mechanism (7) is embedded and installed at the top of both sides of the voltage fault monitor (1) at positions corresponding to the guide plate (404), and the wire harness mechanism (7) comprises a wire harness ring (701), a rubber pad (702), a wire harness groove (703) and a compression spring (704). The wire harness ring (701) is embedded and installed at the top of both sides of the voltage fault monitor (1) at positions corresponding to the guide plate (404), and the rubber pad (702) is installed on both sides of the wire harness ring (701). The wire harness groove (703) is provided between the two rubber pads (702), and the bottom end of the rubber pad (702) is fixedly connected to the inner wall of the wire harness ring (701) via the compression spring (704).

8. The outdoor high temperature protection distribution network overvoltage monitor according to claim 1, characterized in that: Screw holes are provided on both sides of the exterior of the voltage fault monitor (1), and the exterior wall surface of the voltage fault monitor (1) is coated with an anti-rust coating.

9. The outdoor high temperature protection distribution network overvoltage monitor according to claim 1, characterized in that: A liquid injection port is embedded and installed on one side of the outer wall of the sealing end sleeve (8), and a sealing rubber plug is embedded and installed inside the liquid injection port via a thread.

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