CN220271455U

CN220271455U - Electric energy quality on-line monitoring terminal for power grid

Info

Publication number: CN220271455U
Application number: CN202321731113.XU
Authority: CN
Inventors: 农有敏; 左意然; 黄莹凤; 覃业练; 黄明才
Original assignee: Baise New Aluminum Power Co ltd
Current assignee: Baise New Aluminum Power Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2023-12-29
Anticipated expiration: 2033-07-04

Abstract

The utility model discloses an electric energy quality on-line monitoring terminal for a power grid, which comprises a shell and a heat dissipation mechanism, wherein the shell is provided with a heat dissipation mechanism; a shell: the front side of the shell is provided with uniformly distributed indicator lamps, the upper end of the front side of the shell is provided with a display screen, the left side of the upper end of the shell is provided with a network wire connector, the right side of the upper end of the shell is provided with uniformly distributed monitoring wire connectors, and the rear side of the bottom wall of the shell is provided with a memory card; heat dissipation mechanism: which is disposed at the inner rear side of the housing; wherein: the intelligent power supply system is characterized by further comprising a singlechip, the singlechip is arranged in the middle of the bottom wall of the shell, an ARM chip is arranged at the rear side of the singlechip, the input end of the singlechip is electrically connected with an external power supply, the singlechip is electrically connected with the ARM chip in a bidirectional manner, and the intelligent power supply system can be used for an electric power quality on-line monitoring terminal of a power grid, can dissipate heat of the electric power quality on-line monitoring terminal back and forth and in a multi-angle dead-free manner, and greatly improves the stability of the electric power quality on-line monitoring terminal in long-time operation.

Description

Electric energy quality on-line monitoring terminal for power grid

Technical Field

The utility model relates to the technical field of electric energy monitoring of power grids, in particular to an electric energy quality on-line monitoring terminal for a power grid.

Background

With the increasing of the scale of the power grid, the monitoring points of the power quality are more and more, higher requirements are put forward on a monitoring system, with the social and economic development, the impact, nonlinearity and unbalance loads of an electrified railway, an electric arc furnace, a frequency converter and the like are more and more in power application, the power supply safety of the power system is directly affected by the power quality problems of harmonic waves, negative sequences, flicker, voltage transients and the like, the power is a commodity, the quality problem is a common concern of suppliers and customers, the power utilization enterprise is necessary to establish a power quality monitoring system, the real-time monitoring of the power quality of the whole distribution power grid is realized, the power quality on-line monitoring terminal of the existing power grid performs data sampling and power quality data calculation, ARM2 runs embedded Linux, TCP/IP protocol, http protocol, web server, and power quality data storage, statistics and analysis to monitor the power quality in real time on line, and in the monitoring process, the power quality on-line monitoring terminal can emit a large amount of heat, the existing power quality on-line monitoring terminal radiating mechanism is a fan with a fixed hole, but the heat radiating structure of the existing power quality on-line monitoring terminal radiating mechanism is fixed, the heat radiating effect of the power quality on-line is not realized, the heat radiating effect of the power quality on-line monitoring terminal is easy to realize, and the heat radiating effect of the power quality on-line monitoring is not stable, and the power quality on-line terminal radiating quality on line is easily monitored, and the line quality on line monitoring is stable.

Disclosure of Invention

The utility model aims to overcome the existing defects, provide the power quality on-line monitoring terminal for the power grid, and can radiate the power quality on-line monitoring terminal back and forth and at multiple angles without dead angles, so that the stability of the power quality on-line monitoring terminal in long-time operation is greatly improved, and the problems in the background technology can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the power quality on-line monitoring terminal for the power grid comprises a shell and a heat dissipation mechanism;

a shell: the front side of the shell is provided with uniformly distributed indicator lamps, the upper end of the front side of the shell is provided with a display screen, the left side of the upper end of the shell is provided with a network wire connector, the right side of the upper end of the shell is provided with uniformly distributed monitoring wire connectors, and the rear side of the bottom wall of the shell is provided with a memory card;

heat dissipation mechanism: which is disposed at the inner rear side of the housing;

wherein: still include the singlechip, the singlechip sets up in the diapire middle part of shell, and the rear side of singlechip is provided with ARM chip, and the external power source is connected to the input electricity of singlechip, and the singlechip is connected with ARM chip two-way electricity, and monitoring line connects and ARM chip two-way electricity is connected, and the network line connects and singlechip two-way electricity is connected, and the memory card is connected with singlechip two-way electricity, and the output of singlechip is all connected to the input of display screen and pilot lamp, can be round trip about and the multi-angle does not have the dead angle dispel the heat to the online monitoring terminal of electric energy quality, has greatly improved the stability of the online monitoring terminal of electric energy quality at long-time operation.

Further, the cooling mechanism comprises a frame, fans and rotating shafts, the frame is slidably connected in dovetail grooves formed in the inner walls of the left side and the right side of the rear end of the shell, four rotating shafts are rotatably connected in the frame, one fan is arranged between the left rotating shaft and the right rotating shaft, the input end of each fan is electrically connected with the output end of the corresponding singlechip, and cooling of the power quality on-line monitoring terminal is achieved.

Further, the cooling mechanism further comprises a rotating seat, a connecting rod and a screw rod, the rotating seat is slidably connected in a sliding groove formed in the bottom wall of the rear end of the shell, the connecting rod is rotationally connected in the rotating seat, the lower end of the frame is fixedly connected with two rotating seats II, one end of the connecting rod, which is far away from the rotating seat, is rotationally connected with the inner part of the vertically adjacent rotating seat II through a pin shaft, the left side and the right side of the inner part of the sliding groove are rotationally connected with two screw rods through bearings, the screw threads of the two screw rods are opposite in direction, the rotating seat is respectively in threaded connection with the screw rods, and therefore the up-and-down movement cooling of the electric energy quality online monitoring terminal is realized.

Further, the heat dissipation mechanism further comprises rack plates and gears, the gears are fixedly sleeved in the middle of the outer cambered surface of the left rotating shaft respectively, one rack plate is arranged between the top wall and the bottom wall of the rear end of the shell, the gears are meshed with one rack plate, and the multi-angle rotation of the power quality on-line monitoring terminal is achieved.

Further, be provided with biax motor in the installing port that the rear end bottom wall of shell was seted up, the output shaft of biax motor is fixed connection with the relative inner side end of the adjacent lead screw about respectively, and the output of singlechip is connected to the input electricity of biax motor, has realized the drive to electric energy quality on-line monitoring terminal upper and lower and multi-angle heat dissipation.

Further, evenly distributed radiating holes are formed in the left side and the right side of the shell, and evenly distributed air inlets are formed in the rear side of the shell, so that hot air can be blown out.

Further, the mounting plates are fixedly connected to the left side and the right side of the front end of the shell, and are convenient for personnel to install.

Compared with the prior art, the utility model has the beneficial effects that: the power quality on-line monitoring terminal for the power grid has the following advantages:

a person installs an electric energy quality monitoring terminal at a proper position through a mounting plate, then the network wire connector is externally connected with an external network wire, then the monitoring wire connector is connected with an electric wire to be monitored, then an ARM chip is regulated and controlled through a single chip microcomputer to collect electric energy, high-order harmonic analysis, high-frequency waveform sampling, transient voltage temporary rise/drop recording, flicker monitoring, voltage unbalance monitoring and quick capturing of transient waveforms, and the result is presented to the single chip microcomputer, the single chip microcomputer transmits real-time waveforms and information to a display screen, the single chip microcomputer regulates and controls various indicator lamps to be lightened according to the running state, so that the person can better know conditions, the single chip microcomputer can store fault waveforms into a storage card to facilitate subsequent fault analysis, the single chip microcomputer can upload information to an external server in real time, then the single chip microcomputer controls a double-shaft motor and the fan to rotate, and then drives lead screws on two sides to rotate, so that connecting rods on two sides of rotating seats are close to or far away from each other, a fan in the frame enters the fan to and goes back and forth up and the single chip to enable heat to be dissipated from a radiating hole, the heat is greatly influenced by the electric energy of the fan, the fan can be meshed with the fan on the rotating shaft and the rotating terminal, and the heat dissipation quality of the fan can be greatly monitored in a long-time and the running state, and the quality of the terminal can be greatly influenced by the on-line terminal, and the running quality of the terminal can be monitored and the quality of a long-time can be measured and the terminal can be measured and has no influence on the running time on the line terminal.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model.

In the figure: 1 shell, 2 heat dissipation mechanism, 21 rack board, 22 gear, 23 frame, 24 fan, 25 pivot, 26 rotation seat, 27 connecting rod, 28 lead screw, 3 biax motors, 4 pilot lamp, 5 mounting panel, 6 singlechip, 7 ARM chip, 8 memory card, 9 display screen, 10 network line joints, 11 monitoring line joints, 12 louvres.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the present embodiment provides a technical solution: the power quality on-line monitoring terminal for the power grid comprises a shell 1 and a heat dissipation mechanism 2;

the shell 1: the front side of the shell is provided with uniformly distributed indicator lamps 4, the upper end of the front side of the shell 1 is provided with a display screen 9, the left side of the upper end of the shell 1 is provided with a network wire connector 10, the right side of the upper end of the shell 1 is provided with uniformly distributed monitoring wire connectors 11, and the rear side of the bottom wall of the shell 1 is provided with a memory card 8;

heat dissipation mechanism 2: the heat dissipation mechanism 2 is arranged at the rear side of the inside of the shell 1, the heat dissipation mechanism 2 comprises a frame 23, a fan 24 and a rotating shaft 25, the frame 23 is in sliding connection with dovetail grooves formed in the inner walls of the left side and the right side of the rear end of the shell 1, the inside of the frame 23 is rotationally connected with four rotating shafts 25, a fan 24 is arranged between the two rotating shafts 25 adjacent left and right, the input end of the fan 24 is electrically connected with the output end of the singlechip 6, the heat dissipation mechanism 2 also comprises a rotating seat 26, a connecting rod 27 and a screw rod 28, the rotating seat 26 is in sliding connection with a sliding groove formed in the bottom wall of the rear end of the shell 1, the inside of the rotating seat 26 is rotationally connected with a connecting rod 27, the lower end of the frame 23 is fixedly connected with two rotating seats II, one end of the connecting rod 27 away from the rotating seat 26 is rotationally connected with the inside of the vertically adjacent rotating seat II through a pin shaft, the left side and the inside of the sliding groove is rotationally connected with two screw rods 28 through bearings, the two screw rods 28 are in opposite screw thread directions, the rotating seat 26 is respectively in threaded connection with the screw rods 28, the heat dissipation mechanism 2 further comprises a rack plate 21 and a gear 22, the gear 22 is respectively fixedly sleeved in the middle of an outer cambered surface of a rotating shaft 25 on the left side, one rack plate 21 is arranged between the top wall and the bottom wall of the rear end of the shell 1, the gear 22 is meshed with one rack plate 21, a double-shaft motor 3 is arranged in a mounting port formed in the bottom wall of the rear end of the shell 1, an output shaft of the double-shaft motor 3 is respectively and fixedly connected with the opposite inner side ends of the screw rods 28 adjacent to the left side and the right side, the input end of the double-shaft motor 3 is electrically connected with the output end of the singlechip 6, evenly distributed heat dissipation holes 12 are formed in the left side and the right side of the shell 1, evenly distributed air inlets are formed in the rear side of the shell 1, the left side and the right side of the front end of the shell 1 is fixedly connected with a mounting plate 5, and a person firstly mounts an electric energy quality monitoring terminal to a proper position through the mounting plate 5, the network line connector 10 is externally connected with an external network line, the monitoring line connector 11 is connected with an electric wire to be monitored, the ARM chip 7 is regulated and controlled through the single chip 6 to collect electric energy, higher harmonic analysis, high-frequency waveform sampling, transient voltage temporary rise/dip recording, flicker monitoring, voltage unbalance monitoring and transient waveform rapid capture, the result is presented to the single chip 6, the single chip 6 transmits real-time waveforms and information to the display screen 9, the single chip 6 regulates and controls various indicator lamps 4 according to the running state to lighten, people can better know conditions, the single chip 6 can store fault waveforms into the storage card 8, subsequent fault analysis can be conveniently carried out by people, the single chip 6 can upload information to an external server in real time through the external network line, the double-shaft motor 3 and the fan 24 are controlled to rotate through the single chip 6, the output shaft rotates to drive the lead screws 28 on two sides, the connecting rods 27 on two sides of the rotating seats 26 are relatively close to or far away, the fan 24 in the frame 23 carries out back and forth on the ARM chip 6 and the ARM chip 7 through the air inlet, the heat dissipation quality can be greatly improved, the quality of the heat dissipation performance of the fan can be greatly improved, the quality of the heat dissipation terminal can be greatly influenced by the monitoring terminal on the heat dissipation terminal is greatly, and the heat dissipation quality of the terminal is greatly influenced by the fan 24 on the line terminal is in a long-time of a monitoring terminal, and the terminal is not affected by the running the angle of a terminal on the line, and the terminal is in a line terminal is in a long-time-back and a terminal is required to be greatly monitored.

Wherein: still include singlechip 6, singlechip 6 sets up in the diapire middle part of shell 1, the rear side of singlechip 6 is provided with ARM chip 7, the external power source is connected to the input electricity of singlechip 6, singlechip 6 is connected with ARM chip 7 two-way electricity, monitoring line connects 11 and ARM chip 7 two-way electricity and is connected, network line connects 10 and singlechip 6 two-way electricity are connected, memory card 8 is connected with singlechip 6 two-way electricity, the output of singlechip 6 is all connected to the equal electricity of the input of display screen 9 and pilot lamp 4, the control operation goes on.

The working principle of the power quality on-line monitoring terminal for the power grid provided by the utility model is as follows: the personnel firstly installs the electric energy quality monitoring terminal at a proper position through the mounting plate 5, then connects the network wire connector 10 with an external network wire, then connects the monitoring wire connector 11 with an electric wire needing to be monitored, then regulates and controls the ARM chip 7 through the singlechip 6 to collect electric energy and electric quantity, carry out higher harmonic analysis, high-frequency waveform sampling, transient voltage temporary rise/temporary drop record, flicker monitoring, voltage unbalance monitoring and quick capture of transient waveforms, and presents the result to the singlechip 6, the singlechip 6 transmits real-time waveforms and information to the display screen 9, the singlechip 6 regulates and controls each indicator lamp 4 to be lightened according to the running state, so that the personnel can better understand the situation, the singlechip 6 can store fault waveforms into the memory card 8 to facilitate the subsequent fault analysis of the personnel, the singlechip 6 can upload information to an external server in real time through an external network cable, the double-shaft motor 3 and the fan 24 are controlled to rotate through the singlechip 6, the screw rods 28 on two sides are driven to rotate by rotation of the output shaft, and then the connecting rods 27 on the rotating seats 26 on two sides are driven to approach or separate away from each other, so that the fan 24 in the frame 23 enters wind through the air inlet to cool the singlechip 6 and the ARM chip 7 up and down back and forth, heat is dissipated from the cooling holes 12, the gear 22 is influenced by the meshing relationship of the rack plate 21 to start to drive the fan 24 of the rotating shaft 25 to conduct angle adjustment, heat dissipation can be conducted on the power quality on-line monitoring terminal back and forth and without dead angles, and the stability of the power quality on-line monitoring terminal in long-time operation is greatly improved.

It should be noted that, in the above embodiment, the single-chip microcomputer 6 may select R7F0C002L, the dual-axis motor 3 may select 42HB44 servo motor, the ARM chip 7, the display screen 9 and the indicator lamp 4 may be freely configured according to practical situations, and the single-chip microcomputer 6 controls the dual-axis motor 3, the ARM chip 7, the display screen 9 and the indicator lamp 4 to work by using methods commonly used in the prior art.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.

Claims

1. A electric energy quality on-line monitoring terminal for electric wire netting, its characterized in that: comprises a shell (1) and a heat dissipation mechanism (2);

outer casing (1): the front side of the shell is provided with uniformly distributed indicator lamps (4), the upper end of the front side of the shell (1) is provided with a display screen (9), the left side of the upper end of the shell (1) is provided with a network line connector (10), the right side of the upper end of the shell (1) is provided with uniformly distributed monitoring line connectors (11), and the rear side of the bottom wall of the shell (1) is provided with a memory card (8);

heat dissipation mechanism (2): which is arranged at the rear side of the inside of the shell (1);

wherein: still include singlechip (6), singlechip (6) set up in the diapire middle part of shell (1), the rear side of singlechip (6) is provided with ARM chip (7), the input electricity of singlechip (6) is connected external power source, singlechip (6) are connected with ARM chip (7) two-way electricity, monitoring line connects (11) and ARM chip (7) two-way electricity and is connected, network line connects (10) and singlechip (6) two-way electricity are connected, memory card (8) are connected with singlechip (6) two-way electricity, the output of singlechip (6) is all connected to the input of display screen (9) and pilot lamp (4) electricity.

2. The power quality on-line monitoring terminal for a power grid of claim 1, wherein: the heat dissipation mechanism (2) comprises a frame (23), fans (24) and rotating shafts (25), wherein the frame (23) is slidably connected in dovetail grooves formed in the inner walls of the left side and the right side of the rear end of the shell (1), four rotating shafts (25) are rotatably connected in the frame (23), one fan (24) is arranged between two rotating shafts (25) adjacent to each other in the left-right direction, and the input end of each fan (24)) is electrically connected with the output end of the singlechip (6).

3. The power quality on-line monitoring terminal for a power grid according to claim 2, characterized in that: the heat dissipation mechanism (2) further comprises a rotating seat (26), a connecting rod (27) and a screw rod (28), wherein the rotating seat (26) is slidably connected in a sliding groove formed in the bottom wall of the rear end of the shell (1), the connecting rod (27) is rotationally connected in the rotating seat (26), the lower end of the frame (23) is fixedly connected with two rotating seats II, one end of the connecting rod (27) away from the rotating seat (26) is rotationally connected with the inner part of the vertically adjacent rotating seat II through a pin shaft, the left side and the right side of the inner part of the sliding groove are rotationally connected with two screw rods (28) through bearings, the screw directions of the two screw rods (28) are opposite, and the rotating seat (26) is respectively in threaded connection with the screw rods (28).

4. The power quality on-line monitoring terminal for a power grid according to claim 2, characterized in that: the heat dissipation mechanism (2) further comprises rack plates (21) and gears (22), the gears (22) are respectively fixedly sleeved at the middle part of the outer cambered surface of the rotating shaft (25) at the left side, one rack plate (21) is arranged between the top wall and the bottom wall of the rear end of the shell (1), and the gears (22) are all meshed with one rack plate (21).

5. The power quality on-line monitoring terminal for a power grid of claim 4, wherein: the double-shaft motor (3) is arranged in a mounting port formed in the bottom wall of the rear end of the shell (1), an output shaft of the double-shaft motor (3) is fixedly connected with the opposite inner side ends of the left and right adjacent screw rods (28) respectively, and the input end of the double-shaft motor (3) is electrically connected with the output end of the singlechip (6).

6. The power quality on-line monitoring terminal for a power grid of claim 1, wherein: the left side and the right side of the shell (1) are provided with uniformly distributed radiating holes (12), and the rear side of the shell (1) is provided with uniformly distributed air inlets.

7. The power quality on-line monitoring terminal for a power grid of claim 1, wherein: the left side and the right side of the front end of the shell (1) are fixedly connected with mounting plates (5).