Induction type wireless high voltage live display

Abstract

The utility model discloses a kind of inductive wireless high-voltage live display devices, belong to wireless high-voltage live display equipment field, including wireless display, near-field induction sensor and high-voltage transmission line, wireless display is fixedly installed in high-voltage transmission line frame body below, near-field induction sensor is fixedly installed in high-voltage transmission line frame body top by high-voltage line cover, and power module, wireless receiving module, locking module and display module are inserted in wireless display inside, and power module is externally connected with the power switch installed in the side of wireless display.The utility model is designed separately by each function module on structure, and plug-in structure is easy to maintain, while abandoning traditional signal transmission using wire harness, easy to be subjected to site, space and other environment is not convenient for wiring, while signal attenuation caused by line loss, collection is not accurate, wiring is not needed after improvement, also not subjected to site, when installing overhead line, it can be directly installed.

Description

Technical Field

[0001] This utility model relates to the technical field of wireless high-voltage live display equipment, and in particular to an inductive wireless high-voltage live display device. Background Technology

[0002] The high-voltage live display interlocking device is suitable for high-voltage circuits of metal-enclosed combined switchgear or open combined switchgear with voltage levels of 35 to 1000 kV and system frequencies of 50 Hz or 60 Hz. It is used for voltage detection of high-voltage and ultra-high-voltage lines and provides output control signals (through electromagnetic locks or microcomputer interlocking voltage detection decoders) to forcibly interlock the relevant operating mechanisms.

[0003] Most sensors on the market use non-contact sensing of live conditions, with signal transmission primarily via wired connections. The main unit (display) is integrated (integrating the sampling circuit, power supply circuit, interlocking output, and live indicator light). However, the main drawback of existing high-voltage live display devices is that, due to the wired connection of the sensor signal transmission, it is difficult to lay out a large number of signal lines on-site, especially for ultra-high voltage, where wiring often fails to pass inspection. Furthermore, since the circuits are integrated, the functional units are not independent, and damage to one unit requires replacement of the entire device, which is inconvenient and results in high maintenance costs.

[0004] Therefore, an inductive wireless high-voltage live display device is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the problems in the existing technology of complicated sensor wiring under high voltage and ultra-high voltage, and the fact that each functional unit is not independent, and the damage of a certain unit requires the replacement of the whole machine, which is inconvenient and has high maintenance costs. Therefore, an inductive wireless high voltage live display device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An inductive wireless high-voltage live display device includes a wireless display, a near-field sensor, and a high-voltage transmission line. The wireless display is fixedly installed below the high-voltage transmission line frame, and the near-field sensor is fixedly installed above the high-voltage transmission line frame via a high-voltage cable sleeve. The wireless display internally houses a power supply module, a wireless receiving module, a locking module, and a display module. The power supply module is externally connected to a power switch installed on the side of the wireless display. Indicator lights are electrically connected to the power supply module, display module, and locking module on the front of the wireless display.

[0008] Preferably, a receiving antenna is fixedly installed on the side of the wireless display, and a wireless transmitting module that is wirelessly connected to the receiving antenna is fixedly connected to the bottom of the near-field sensing sensor.

[0009] Preferably, the near-field sensing sensor is fixedly mounted on the surface of the high-voltage line sleeve by mounting gaskets, and the mounting gaskets are fastened to the surface of the high-voltage line sleeve by fixing bolts and nuts.

[0010] Preferably, a closed back plate is fixedly installed on the back of the wireless display, and a stabilizing pad corresponding to the power supply module, wireless receiving module, locking module and display module is provided on the front of the closed back plate, and stabilizing holes are provided on the stabilizing pad.

[0011] Preferably, the wireless display has through holes at the top and bottom, and the wireless display is slidably connected to the heat sink and the stabilizing sleeve through the through holes. The top of the heat sink and the stabilizing sleeve are both fixedly connected with limiting rings that overlap with the through holes.

[0012] Preferably, both the heat dissipation sleeve and the stabilizing sleeve have closed heat dissipation holes on their inner walls, and the stabilizing sleeve is slidably connected to the stabilizing pad.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. By adopting a separate design for each functional module in the structure, the pluggable structure is easy to maintain, which solves the problem mentioned in the background technology that the functional units are not independent, and the failure of a certain unit requires the replacement of the whole machine, which is inconvenient and has high maintenance costs.

[0015] 2. By abandoning the traditional signal transmission using wire harnesses, which is easily restricted by the site and space environment and is inconvenient for wiring, and because the signal attenuation and inaccurate acquisition are caused by line loss, the improved version does not require wiring and is not restricted by the site. It can be directly installed when installing overhead lines, solving the problem of cumbersome sensor wiring in existing high-voltage live display devices under high voltage and ultra-high voltage conditions mentioned in the background technology.

[0016] 3. By setting up stabilizing pads and heat dissipation sleeves, when there is a fault in the module inside the wireless display, the closed back panel can be opened, and the faulty module can be quickly disassembled by sliding the stabilizing sleeve at the fault location. When the wireless display is working normally, the stabilizing sleeve is inserted into the stabilizing pad, which can limit the position of the stabilizing pad. This allows the stabilizing pad to fit tightly against the outer surface of the module, preventing the wireless display from vibrating due to severe weather conditions such as strong winds and heavy rain, which could cause the internal module to loosen and affect the normal operation of the wireless display. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an inductive wireless high-voltage live display device proposed in this utility model;

[0018] Figure 2This is an exploded view of the structure of an inductive wireless high-voltage live display device proposed in this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the near-field sensing sensor in an inductive wireless high-voltage live display device proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-section of the near-field sensing sensor in an inductive wireless high-voltage live display device proposed in this utility model.

[0022] Figure 6 This invention relates to an internal power supply circuit diagram for an inductive wireless high-voltage live display device.

[0023] In the diagram: 1. Wireless display; 11. Receiving antenna; 12. Indicator light; 13. Power switch; 14. Enclosed backplate; 141. Stabilizing pad; 2. Power supply module; 3. Wireless receiving module; 4. Locking module; 5. Display module; 6. Heat sink; 7. Stabilizing pad; 8. Near-field sensor; 81. Wireless transmitting module; 82. Mounting pad; 9. High-voltage cable sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1 to 6 A wireless high-voltage live display device includes a wireless display 1, a near-field sensor 8, and a high-voltage transmission line. The wireless display 1 is fixedly installed below the high-voltage transmission line frame. The near-field sensor 8 is fixedly installed above the high-voltage transmission line frame via a high-voltage cable sleeve 9. The wireless display 1 internally houses a power supply module 2, a wireless receiving module 3, a locking module 4, and a display module 5. The power supply module 2 is externally connected to a power switch 13 installed on the side of the wireless display 1. The power supply module 2, the display module 5, and the locking module 4 are all electrically connected to indicator lights 12 on the front of the wireless display 1. The indicator lights 12 use red and green colors for display.

[0026] Furthermore, a receiving antenna 11 is fixedly installed on the side of the wireless display 1, and a wireless transmitting module 81 that is wirelessly connected to the receiving antenna 11 is fixedly connected to the bottom of the near field sensor 8. The near field sensor 8 is fixedly installed on the surface of the high voltage line sleeve 9 by mounting gaskets 82, and the mounting gaskets 82 are fastened to the surface of the high voltage line sleeve 9 by fixing bolts and nuts.

[0027] The above technical solution involves placing an electrode within an electric field. Induced charges due to electrostatic induction are then used as the input signal. Normally, the electrode and transmission cable develop leakage impedance due to changes in natural conditions and over time. Furthermore, various spatial interference signals significantly affect the transmission of the input signal. This device employs a novel principle: with minimal input impedance, a voltage difference is created between the induction electrode and ground, forming a capacitor for power extraction. A stable voltage is then supplied to the device through a piezoelectric energy harvesting and conversion module within the near-field induction sensor 8. This method does not affect changes in the electric field. Red and green indicators reflect the presence or absence of power in the high-voltage line, simultaneously driving relays to complete automatic control or forced interlocking of related operating mechanisms within the control circuit.

[0028] Therefore, the structure adopts a separate design for each functional module, and the plug-in structure is easy to maintain. It abandons the traditional signal transmission using wire harnesses, which is easily restricted by the site, space and other environment and is not convenient for wiring. At the same time, the signal attenuation and inaccurate acquisition are caused by line loss. The improved version does not require wiring and is not restricted by the site. It can be directly installed when installing overhead lines.

[0029] Based on the above, when the high-voltage line is normal, indicator light 12 will display a red light, indicating that the relay output contact is locked. When the high-voltage line loses power or is de-energized, indicator light 12 will display a green light, indicating that the relay output contact is unlocked. When there is no AC 220V operating voltage, indicator light 12 will be off, indicating that the relay output contact is locked.

[0030] Furthermore, the wireless display 1 is equipped with a self-test function. Even when the high-voltage line is de-energized, or when the device sensor is not connected (disconnected), as long as the power supply is normal, pressing the "self-test button" will verify whether the device is functioning correctly. A red light indicates normal operation, while a green light indicates malfunction or a fault in the auxiliary signal source (self-test circuit).

[0031] When the output relays are in the locked state, each phase of the wireless display 1 has two output relays, and each relay controls a set of normally open and normally closed contacts. One normally open contact controlled by one of the relays can be used as the forced locking contact of the electromagnetic lock, or the two sets of contacts of the other relay can be used to connect other control circuits, for example, to transmit "present" and "absent" electrical signals to a remote control center.

[0032] like Figure 2 and Figure 3 As shown, a closed back plate 14 is fixedly installed on the back of the wireless display 1. The front of the closed back plate 14 is provided with a stabilizing pad 141 corresponding to the power supply module 2, the wireless receiving module 3, the locking module 4 and the display module 5. The stabilizing pad 141 is provided with stabilizing holes.

[0033] Furthermore, the wireless display 1 has through holes at the top and bottom. The wireless display 1 is slidably connected to the heat dissipation sleeve 6 and the stabilizing sleeve 7 through the through holes. The top of the heat dissipation sleeve 6 and the stabilizing sleeve 7 are fixedly connected with limiting rings that overlap with the through holes. The inner walls of the heat dissipation sleeve 6 and the stabilizing sleeve 7 are provided with closed heat dissipation holes. The stabilizing sleeve 7 is slidably connected to the stabilizing pad 141.

[0034] Through the above technical solution, when the wireless display 1 is working normally, the heat dissipation sleeve 6 and the stabilizing sleeve 7 inserted into the wireless display 1 can isolate its internal working environment from the outside. At the same time, through the heat dissipation holes opened in the heat dissipation sleeve 6 and the stabilizing sleeve 7, the heat generated by the wireless display 1 can be transferred to the outside when the wireless display 1 is working, thus protecting the internal components.

[0035] Meanwhile, when there is a fault in the power supply module 2, wireless receiver module 3, locking module 4, and display module 5 inside the wireless display 1, the closed back plate 14 can be opened, and the faulty module can be quickly disassembled by selecting and sliding the stabilizing sleeve 7 at the fault location. When the wireless display 1 is working normally, the stabilizing sleeve 7 can be inserted into the stabilizing pad 141 to limit the position of the stabilizing pad 141, so that the stabilizing pad 141 can be tightly attached to the outer surface of the power supply module 2, wireless receiver module 3, locking module 4, and display module 5. This prevents the wireless display 1 from vibrating due to severe weather conditions such as strong winds and heavy rain, which could cause the internal modules to loosen and affect the normal operation of the wireless display 1.

[0036] Working principle:

[0037] When this utility model is in use, the sensor is installed directly below the high-voltage transmission line being measured, parallel to the energized body. The sensor uses near-field induction (inductive coupling) or magnetic field resonance principle to obtain power. It supplies power to the energy storage capacitor bank through a piezoelectric energy harvesting and conversion module. The energy storage capacitor serves as the power source, and the power is converted into 3V voltage by a linear regulator to power the sensor's built-in low-power wireless transmission module 81. When the high-voltage transmission line is energized, it obtains energy and sends data to the display device. The display device shows the high-voltage energization status and controls the microcomputer five-proof interlock to lock the relevant equipment.

[0038] The display section adopts a modular pluggable unit design, which is divided into a power supply module 2, a wireless receiving module 3, a display module 5 (indicating whether it is powered or not), and a locking module 4. The power supply unit uses an external power supply to power the entire device. When the wireless receiving module 3 receives a signal from the sensor, it determines that the device is powered by high voltage. The red light on the display module 5 indicates that the device is currently powered. The locking module 4 outputs a locking signal to control the microcomputer's five-proof locking.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An inductive wireless high-voltage live display device, comprising a wireless display (1), a near-field induction sensor (8), and a high-voltage transmission line, characterized in that, The wireless display (1) is fixedly installed below the high-voltage transmission line frame. The near-field sensing sensor (8) is fixedly installed above the high-voltage transmission line frame through the high-voltage cable sleeve (9). The wireless display (1) is internally connected to a power supply module (2), a wireless receiving module (3), a locking module (4), and a display module (5). The power supply module (2) is externally connected to a power switch (13) installed on the side of the wireless display (1). The power supply module (2), the display module (5), and the locking module (4) are all electrically connected to indicator lights (12) on the front of the wireless display (1).

2. The inductive wireless high-voltage live display device according to claim 1, characterized in that, The wireless display (1) has a receiving antenna (11) fixedly installed on its side, and the near field sensor (8) has a wireless transmitting module (81) fixedly connected to the bottom of the receiving antenna (11).

3. The inductive wireless high-voltage live display device according to claim 2, characterized in that, The near-field sensing sensor (8) is fixedly installed on the surface of the high-voltage sleeve (9) by mounting gaskets (82), and the mounting gaskets (82) are connected to the surface of the high-voltage sleeve (9) by fixing bolts and nuts.

4. The inductive wireless high-voltage live display device according to claim 1, characterized in that, The wireless display (1) has a closed back plate (14) fixedly installed on its back. The front of the closed back plate (14) is provided with a stabilizing pad (141) corresponding to the power supply module (2), the wireless receiving module (3), the locking module (4) and the display module (5). The stabilizing pad (141) has stabilizing holes.

5. The inductive wireless high-voltage live display device according to claim 4, characterized in that, The wireless display (1) has through holes at the top and bottom. The wireless display (1) is slidably connected to the heat sink (6) and the stabilizing sleeve (7) through the through holes. The top of the heat sink (6) and the stabilizing sleeve (7) are fixedly connected with limiting rings that overlap with the through holes.

6. The inductive wireless high-voltage live display device according to claim 5, characterized in that, The inner walls of the heat dissipation sleeve (6) and the stabilizing sleeve (7) are provided with closed heat dissipation holes, and the stabilizing sleeve (7) is slidably connected to the stabilizing pad (141).

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