Passive electric quantity intelligent monitoring terminal

Abstract

The utility model discloses a kind of passive electrical quantity intelligent monitoring terminal, comprising: monitoring part and installation part, wherein first magnetic ring is provided in monitoring part, second magnetic ring is provided in installation part, monitoring part and installation part buckle connection, opening is formed in monitoring part, buckle and bandage are provided on the left side of installation part, bandage is sleeved in buckle, first voltage terminal is provided on the front side of installation part, second voltage terminal is provided on the back of installation part.The terminal of the utility model is designed to monitor single loop electrical quantity, including 1 way voltage signal and 1 way current signal, simple structure, small, long power supply time.

Description

Technical Field

[0001] This utility model relates to the field of electrical quantity monitoring technology, specifically to a passive electrical quantity intelligent monitoring terminal. Background Technology

[0002] Existing devices capable of online monitoring of electrical quantities such as voltage and current quality are mainly power quality monitoring devices and fault recording devices, but both types of devices share common problems and drawbacks:

[0003] Conventional power quality monitoring devices and fault recording devices are designed based on standard microprocessor-based protection devices, supporting simultaneous sampling of multiple electrical quantities, and are relatively large in size. They require panel installation and wiring, and do not support live installation.

[0004] Conventional power quality monitoring devices and fault recording devices have a large number of monitoring channels, high power consumption, and high cost, making them unsuitable for monitoring applications requiring short-term (three to four months) monitoring. Utility Model Content

[0005] The purpose of this utility model is to provide a distributed power quality monitoring and recording terminal that supports single-loop electrical quantity monitoring, features low power consumption, small size, low cost, flexible installation, and supports live implementation and installation.

[0006] The above-mentioned connection structure is as follows: a passive electrical quantity intelligent monitoring terminal, including: a monitoring part and a mounting part, wherein a first magnetic ring is provided in the monitoring part, a second magnetic ring is provided in the mounting part, the monitoring part and the mounting part are snap-fit ​​connected, an opening is formed in the monitoring part, a buckle and a strap are provided on the left side of the mounting part, the strap is sleeved in the buckle, a first voltage terminal is provided on the front side of the mounting part, and a second voltage terminal is provided on the rear side of the mounting part.

[0007] Furthermore, the buckle extends downward along the height of the mounting section, and the buckle is provided with a receiving groove, into which the strap is fitted.

[0008] Furthermore, the first voltage terminal and the second voltage terminal are disposed on the left edge of the mounting part, and the first voltage terminal and the second voltage terminal are located on the left side of the monitoring part.

[0009] Furthermore, a monitoring PCB board is installed inside the installation unit. The monitoring PCB board is electrically connected to the SD card, and the rechargeable lithium battery is electrically connected to the monitoring PCB board.

[0010] Furthermore, a monitoring PCB board is installed inside the installation unit. The monitoring PCB board is electrically connected to the SD card, and the rechargeable lithium battery is electrically connected to the monitoring PCB board.

[0011] Furthermore, the first voltage terminal and the second voltage terminal are electrically connected to the monitoring PCB board, respectively.

[0012] Furthermore, a signal coil and an energy harvesting coil are provided on the second magnetic ring, and the signal coil and the energy harvesting coil are electrically connected to the monitoring PCB board respectively.

[0013] Furthermore, the bottom of the mounting section is equipped with a Type-C charging port and a charging indicator light, both of which are electrically connected to the monitoring PCB board.

[0014] The beneficial effects of this utility model are:

[0015] 1. Small size and low cost. The terminal is designed to monitor single-loop electrical quantities, including one voltage signal and one current signal. It can be easily implemented for the needs of finding abnormal damage to electrical equipment, such as power supply breakdown, through current damage, and other electrical quantity abnormalities, including multi-point distributed implementation.

[0016] 2. The terminal uses a rechargeable lithium battery, which can support up to 6 months of monitoring operation when fully charged.

[0017] 3. The current monitoring circuit does not require power outage. The current monitoring circuit of the terminal adopts an open-type current transformer, which can be installed with power on. It can be easily implemented for scenarios that only need to monitor current surges without any wiring.

[0018] 4. Supports local SD card data storage and Bluetooth reading. The terminal is designed with a Bluetooth communication interface. After the terminal completes the monitoring task, users can easily connect to the terminal with a computer to download the monitoring data. The monitoring data can be restored into voltage and current waveforms in the background, which makes it convenient for users to trace and analyze the causes and sources of electrical quantity abnormalities in the monitoring circuit, thereby guiding the rectification of the electrical system and ensuring the safe and reliable operation of electrical equipment. Attached Figure Description

[0019] Figure 1 This is a diagram of the external structure of the terminal of this utility model.

[0020] Figure 2 This is a diagram of the internal structure of the terminal of this utility model.

[0021] Figure 3 This is a schematic diagram of the energy harvesting coil of this utility model.

[0022] Explanation of reference numerals in the attached drawings: Monitoring unit 200, mounting unit 300, first magnetic ring 210, second magnetic ring 310, opening 220, buckle 320, strap 330, first voltage terminal 340, second voltage terminal 350, receiving slot 321, monitoring PCB board 400, SD card 410, rechargeable lithium battery 420, signal coil 311, and power extraction coil 312. Detailed Implementation

[0023] like Figure 1 As shown, a passive electrical quantity intelligent monitoring terminal 100 includes a monitoring unit 200 and a mounting unit 300. The monitoring unit 200 contains a first magnetic ring 210, and the mounting unit 300 contains a second magnetic ring 310. The monitoring unit 200 and the mounting unit 300 are snap-fitted together. An opening 220 is formed within the monitoring unit 200. A snap-fit ​​320 and a strap 330 are provided on the left side of the mounting unit 300, with the strap 330 fitted into the snap-fit ​​320. A first voltage terminal 340 is provided on the front side of the mounting unit 300, and a second voltage terminal 350 is provided on the rear side. The first voltage terminal 340 and the second voltage terminal 350 are used to monitor one voltage signal, and the first magnetic ring 210 and the second magnetic ring 310 are used to monitor one current signal.

[0024] Furthermore, the buckle 320 extends downward along the height direction of the mounting part 300, and the buckle 320 is provided with a receiving groove 321, into which the strap 330 is fitted.

[0025] Furthermore, the first voltage terminal 340 and the second voltage terminal 350 are disposed on the left edge of the mounting part 300. The first voltage terminal 340 and the second voltage terminal 350 are located on the left side of the monitoring part 200 and are used to monitor voltage parameters.

[0026] like Figure 2 As shown, a monitoring PCB board 400 is installed inside the mounting section 300. The monitoring PCB board 400 is electrically connected to an SD card 410, and a rechargeable lithium battery 420 is electrically connected to the monitoring PCB board 400. The monitoring PCB board 400 completes real-time acquisition of voltage terminal and current transformer output signals. When the current or voltage value exceeds the design limit, it triggers sampling data recording. The sampling accuracy is 0.5%. The SD card 410 is used to store six months of recorded data.

[0027] The monitoring PCB board 400 is equipped with a Type-C charging port, which can be used to charge the device before use. At the same time, there is a charging indicator light at the bottom of the terminal, which is red when charging and turns green when charging is complete.

[0028] Furthermore, a monitoring PCB board 400 is installed within the mounting section 300. The monitoring PCB board 400 is electrically connected to the SD card 410, and a rechargeable lithium battery 420 is electrically connected to the monitoring PCB board 400. The rechargeable lithium battery 420 has a voltage output of 3.7VDc and a capacity of 10Ah, which is less than the airline's 100Wh battery carrying limit.

[0029] Furthermore, the first voltage terminal 340 and the second voltage terminal 350 are electrically connected to the monitoring PCB board 400, respectively.

[0030] like Figure 3 A signal coil 311 and an energy harvesting coil 312 are wound on the second magnetic ring 310, and the signal coil 311 and the energy harvesting coil 312 are electrically connected to the monitoring PCB board 400. The current transformer in the terminal has two coils; one coil is used for signal acquisition and monitoring current parameters. When there is no current monitoring circuit, the monitoring PCB board 400 is powered by a rechargeable lithium battery 420. When there is a current monitoring circuit, the energy harvesting coil 312 is used to harvest energy to charge the rechargeable lithium battery 420, reducing the battery's size and cost and enabling convenient monitoring.

[0031] Furthermore, the bottom of the mounting section 300 is provided with a Type-C charging port 430 and a charging indicator light, both of which are electrically connected to the monitoring PCB board 400.

[0032] The working principle of this utility model:

[0033] 1. Pass the wire through the opening 220, and the monitoring part 200 and the mounting part 300 are fastened together by the elastic buckle to form mutual inductance;

[0034] 2. Secure the left side of the wire with the strap 330 and the buckle 320 for accurate positioning;

[0035] 3. Connect both ends of the wire to the first voltage terminal 340 and the second voltage terminal 350 respectively.

[0036] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A passive electrical quantity intelligent monitoring terminal, characterized in that, include: The device includes a monitoring section and an installation section. The monitoring section contains a first magnetic ring, and the installation section contains a second magnetic ring. The monitoring section and the installation section are connected by a snap fastener. An opening is formed inside the monitoring section. A snap fastener and a strap are provided on the left side of the installation section. The strap is fitted into the snap fastener. A first voltage terminal is provided on the front side of the installation section, and a second voltage terminal is provided on the rear side of the installation section.

2. The passive electrical quantity intelligent monitoring terminal according to claim 1, characterized in that: The buckle extends downward along the height of the mounting section, and the buckle is provided with a receiving groove, into which the strap is fitted.

3. The passive electrical quantity intelligent monitoring terminal according to claim 2, characterized in that: The first voltage terminal and the second voltage terminal are located on the left edge of the mounting part, and the first voltage terminal and the second voltage terminal are located on the left side of the monitoring part.

4. The passive electrical quantity intelligent monitoring terminal according to claim 3, characterized in that: The installation section contains a monitoring PCB board, which is electrically connected to the SD card and a rechargeable lithium battery.

5. The passive electrical quantity intelligent monitoring terminal according to claim 4, characterized in that: The installation section contains a monitoring PCB board, which is electrically connected to the SD card and a rechargeable lithium battery.

6. The passive electrical quantity intelligent monitoring terminal according to claim 5, characterized in that: The first voltage terminal and the second voltage terminal are electrically connected to the monitoring PCB board, respectively.

7. The passive electrical quantity intelligent monitoring terminal according to claim 6, characterized in that: The second magnetic ring is equipped with a signal coil and an energy harvesting coil, which are electrically connected to the monitoring PCB board.

8. The passive electrical quantity intelligent monitoring terminal according to claim 7, characterized in that: The bottom of the mounting section is equipped with a Type-C charging port and a charging indicator light, both of which are electrically connected to the monitoring PCB board.

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