Intelligent safety power utilization device

Abstract

The utility model discloses an intelligent safety power utilization device, which belongs to the technical field of power supply and distribution, and comprises an AC-DC unit, a safety acquisition unit and a visualization unit, the AC-DC unit is electrically connected with a power supply side of a load so as to convert AC voltage of the power supply side into DC voltage, the safety acquisition unit is electrically connected with the power supply side so as to convert the DC voltage into DC voltage, and the visualization unit is connected with the AC-DC unit. The safety acquisition unit is electrically connected with the AC-DC unit to acquire power utilization parameters for supplying power to a load side, and the visualization unit is electrically connected with the safety acquisition unit and the AC-DC unit to visually display the acquired power utilization parameters in real time. The intelligent electric energy meter integrates the functions of metering, intelligent display and the like, so that a user can safely and efficiently use and manage electric energy.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply and distribution, and in particular to a smart and safe power consumption device. Background Art

[0002] In the traditional power distribution mode, the load is usually regarded as a simple consumption unit, generally only endowed with the simple function of managing electric energy, which can no longer meet the development needs of intelligent power consumption. For example, in household power consumption, most distribution boxes only have simple protection and control functions, and users cannot obtain real-time and historical power consumption situations. Users need to open the distribution box to check the power consumption situation by themselves. This mode cannot meet the needs of modern human-computer interaction, so that users can neither get better services nor use and manage electric energy more safely and efficiently. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a smart and safe power consumption device, which integrates functions such as metering and intelligent display, enabling users to use and manage electric energy safely and efficiently.

[0004] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0005] A smart and safe power consumption device includes an AC-DC unit, a safety acquisition unit, and a visualization unit. The AC-DC unit is electrically connected to the power supply side of the load to convert the AC voltage on the power supply side into a DC voltage. The safety acquisition unit is electrically connected to the power supply side to acquire the power consumption parameters for supplying power to the load side. The visualization unit is electrically connected to the safety acquisition unit and the AC-DC unit to visually display the acquired power consumption parameters in real time.

[0006] Further, the safety acquisition unit includes a current transformer and an electric energy metering module. The input end of the current transformer is electrically connected to the power supply side, and the input end of the electric energy metering module is electrically connected to the output end of the current transformer. The electric energy metering module outputs power consumption parameters, where the power consumption parameters include voltage, current, active power, apparent power, and power factor.

[0007] Further, the AC-DC unit includes a first step-down module and a first voltage stabilization module. The input end of the first step-down module is electrically connected to the power supply side to output a first DC voltage. The input end of the first voltage stabilization module is electrically connected to the output end of the first step-down module to output a second DC voltage. The output end of the first voltage stabilization module is electrically connected to the visualization unit.

[0008] Further, the AC-DC unit further includes a second voltage stabilization module, and the second voltage stabilization module is connected in parallel between the output end of the first step-down module and the input end of the first voltage stabilization module.

[0009] Further, the AC-DC unit further includes a filtering and reactive power compensation module, which is connected in parallel between the power supply side and the input end of the first step-down module.

[0010] Further, the AC-DC unit further includes a second step-down module, the input end of the second step-down module is electrically connected to the power supply side and the output end of the first voltage stabilizing module to output a third DC voltage, wherein the third DC voltage is less than the second DC voltage.

[0011] Further, the visualization unit includes a control module and a display module. The control module uses the DC voltage at the output end of the AC-DC unit as the working power supply, and both the safety acquisition unit and the display module are electrically connected to the control module.

[0012] Further, the intelligent safe power consumption device further includes a communication unit, which is electrically connected to the visualization unit and is used for communicating with a remote terminal and / or a server.

[0013] Further, the intelligent safe power consumption device further includes a monitoring unit, which is electrically connected to the visualization unit and is used for collecting environmental temperature and humidity data in real time.

[0014] Further, the intelligent safe power consumption device further includes a clock unit, which is electrically connected to the visualization unit and is used for obtaining time data in real time.

[0015] The utility model has the following beneficial effects: The AC-DC unit can convert high voltage into a low-voltage DC signal, preventing safety accidents caused by high voltage, and at the same time can supply power to low-voltage electronic devices. At the same time, the safety acquisition unit can obtain power consumption parameters in a safe manner and finally display them intuitively through the visualization unit, facilitating users to use and manage electric energy; during this process, a filtering and reactive power compensation module is also set. When the load is an inductive load, the filtering and reactive power compensation module can play a reactive power compensation role to compensate for the inductive reactive power in the system and achieve the purpose of energy saving.

[0016] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0018] Figure 1 is the logical block diagram of the embodiment of the utility model;

[0019] Figure 2It is the circuit diagram of the AC-DC unit in the embodiment of the present utility model;

[0020] Figure 3 It is the circuit diagram of the safety acquisition unit in the embodiment of the present utility model;

[0021] Figure 4 It is the circuit diagram of the control module in the embodiment of the present utility model;

[0022] Figure 5 It is the circuit diagram of the display module in the embodiment of the present utility model;

[0023] Figure 6 It is the circuit diagram of the communication unit in the embodiment of the present utility model;

[0024] Figure 7 It is the circuit diagram of the monitoring unit in the embodiment of the present utility model;

[0025] Figure 8 It is the circuit diagram of the clock unit in the embodiment of the present utility model;

[0026] Legend Explanation:

[0027] AC-DC unit 100, first step-down module 110, first voltage regulation module 120, second voltage regulation module 130, filter reactive power compensation module 140, second step-down module 150, safety acquisition unit 200, current transformer 210, electric energy metering module 220, visualization unit 300, control module 310, display module 320, communication unit 400, monitoring unit 500, clock unit 600. Detailed Implementation Manner

[0028] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Reference Figure 1 , a smart safe power consumption device according to an embodiment of the present utility model, includes an AC-DC unit 100, a safety acquisition unit 200, and a visualization unit 300. Among them, the AC-DC unit 100 is electrically connected to the power supply side of the load to convert the AC voltage on the power supply side into a DC voltage. The safety acquisition unit 200 is electrically connected to the power supply side to acquire the power consumption parameters of the power supply side supplying power to the load. The visualization unit 300 is electrically connected to the safety acquisition unit 200 and the AC-DC unit 100. The DC voltage output by the AC-DC unit 100 is used to provide the power supply during operation for the visualization unit 300. The safety acquisition unit 200 is used to acquire the power consumption parameters in real time and send them to the visualization unit 300. The visualization unit 300 visually displays the received power consumption parameters, so that the user can directly observe the power consumption status through the visualization unit 300 without manually checking by themselves, improving safety, and the power consumption data that can be viewed is no longer just single data such as power consumption values and other information, improving the user experience.

[0033] In some alternative embodiments, as Figure 3 shown, the safety acquisition unit 200 includes a current transformer 210 and an electric energy metering module 220. The input end of the current transformer 210 is electrically connected to the power supply side. The large current of the single-phase alternating current on the power supply side is changed into a small current through the current transformer 210. The electric energy metering module 220 analyzes and processes the electrical signal on the output side of the current transformer 210 to obtain the power consumption parameters including voltage, current, active power, apparent power, and power factor. The visualization unit 300 then visually displays the power consumption parameters for the user to conveniently view the power consumption situation.

[0034] Exemplarily, the current transformer 210 uses the chip PT1 of model ZHTPT107. The turns ratio of the ZHTPT107 chip PT1 is 1:1. This current transformer is small in size and high in precision. When wiring, the input end of the ZHTPT107 chip PT1 is connected to the live wire L and the neutral wire N of the single-phase alternating current on the power supply side. The electric energy metering module 220 uses the electric energy metering chip U0 of model HLW8032. The HLW8032 electric energy metering chip U0 can detect data such as voltage, current, active power, apparent power, and power factor, and has the characteristics of high precision and fast response speed. When wiring, the input end of the electric energy metering chip U0 is connected to the output end of the ZHTPT107 chip PT1. In addition, in order to prevent someone from touching the input side line of the current transformer 210 and causing a safety accident, a current-limiting resistor R0 with a resistance value of 110K is connected in series between the input end of the ZHTPT107 chip PT1 and the live wire L, and a current-limiting resistor R9 with a resistance value of 820K is connected in series between the neutral wire N and the ground wire PE on the power supply side. When a person touches it, the leakage current at the input end of the ZHTPT107 chip PT1 is limited within 2 mA, thus playing a role in preventing electric shock.

[0035] In some alternative embodiments, as Figure 2 shown, the AC-DC unit 100 includes a first step-down module 110 and a first voltage regulation module 120. The input end of the first step-down module 110 is electrically connected to the power supply side to output a first DC voltage. The input end of the first voltage regulation module 120 is electrically connected to the output end of the first step-down module 110 to output a second DC voltage. The output end of the first voltage regulation module 120 is electrically connected to the visualization unit 300 to provide a suitable operating voltage for the visualization unit 300. Optionally, the second DC voltage can be less than the first DC voltage or equal to the first DC voltage.

[0036] Exemplarily, the first buck module 110 uses a non-isolated buck switching power supply constant voltage control drive chip U1 of model LP2179B. This chip is a non-isolated buck switching power supply constant voltage control drive chip produced by Xinmao Microelectronics, and is applicable to non-isolated Buck and Buckboost topologies with an input voltage range of 85VAC - 265VAC. The LP2179B chip integrates a high-voltage power transistor internally, can operate in continuous conduction mode (CCM) and discontinuous conduction mode (DCM), and has built-in peak current control and startup circuits. In addition, the LP2179B chip also has multiple protection functions, including VCC clamping / undervoltage protection, output short-circuit protection, inductor overcurrent protection, and over-temperature protection, etc. When in use, the LP2179B chip converts the high-voltage alternating current on the power supply side into a DC voltage of 12V. The first voltage regulator module 120 uses a fixed output voltage three-terminal integrated voltage regulator chip U2 of model 78L05, and its output is a DC voltage of 5V. Among them, the 12V DC voltage can supply power to some high-power electronic devices, such as a cooling fan, while the 5V DC voltage can supply power to some low-power electronic devices.

[0037] In some alternative embodiments, as Figure 2 shown, the AC-DC unit 100 further includes a second voltage regulator module 130. The second voltage regulator module 130 is connected in parallel between the output terminal of the first buck module 110 and the input terminal of the first voltage regulator module 120.

[0038] Exemplarily, the second voltage regulator module 130 uses a resistor R1 with a resistance value of 4.3K, and stabilizes the output voltage of the LP2179B chip at 12V through the resistor R1.

[0039] In some alternative embodiments, as Figure 2 shown, the AC-DC unit 100 further includes a filter reactive power compensation module 140. The filter reactive power compensation module 140 is connected in parallel between the power supply side and the input terminal of the first buck module 110.

[0040] Exemplarily, the filter reactive power compensation module 140 uses a capacitor C1 with a capacitance value of 5 microfarads. The capacitor C1 is used to filter the alternating current input from the power supply side, making the input voltage waveform smoother. In addition, when the load is an inductive load, the capacitor C1 can also play a role in reactive power compensation to compensate for the inductive reactive power in the system, reduce the flow of inductive reactive power, and reduce circuit losses, thereby achieving the purpose of energy saving.

[0041] In some alternative embodiments, as Figure 2As shown, the AC-DC unit 100 further includes a second buck module 150. The input end of the second buck module 150 is electrically connected to the power supply side and the output end of the first voltage stabilizing module 120 to output a third DC voltage, where the third DC voltage is less than the second DC voltage.

[0042] Exemplarily, the second buck module 150 uses a low-dropout regulator chip U3 of model LM1117MPX. The low-dropout regulator chip U3 converts a 5V DC voltage into a 3.3V DC voltage to provide a stable operating voltage for low-power electronic devices such as smart terminals and microcontrollers.

[0043] In some optional embodiments, the visualization unit 300 includes a control module 310 and a display module 320. The control module 310 uses the DC voltage at the output end of the AC-DC unit 100 as the operating power supply. Both the safety acquisition unit 200 and the display module 320 are electrically connected to the control module 310. Optionally, the control module 310 can use controller devices such as microcontrollers, PLCs, CPLDs, and FPGAs.

[0044] Exemplarily, as Figure 4 、 Figure 5 shown, the control module 310 uses a single-chip microcomputer U5 of model STC8H3K32S2. At this time, the 3.3V DC voltage output by the low-dropout regulator chip U3 supplies power to the single-chip microcomputer U5. At the same time, the power metering chip U0 communicates with the single-chip microcomputer U5 through a serial port, so that the single-chip microcomputer U5 can receive the power consumption parameters sent by the power metering chip U0. The display module 320 includes a liquid crystal driving chip U7 of model TM1721 and a liquid crystal display J5. The display of the liquid crystal display J5 is realized through the dedicated liquid crystal driving chip of TM1721. The single-chip microcomputer U5 communicates with the liquid crystal driving chip U7 through an SPI interface. The single-chip microcomputer U5 controls the internal data and address registers of TM1721 to realize the content display and shutdown of the liquid crystal display J5, so that the power consumption parameters can be displayed in real time on the liquid crystal display J5.

[0045] In some optional embodiments, as Figure 1 shown, the intelligent and safe power consumption device further includes a communication unit 400. The communication unit 400 is electrically connected to the visualization unit 300. The communication unit 400 is used to communicate with a remote terminal and / or a server. For example, the communication unit 400 can transmit the power consumption parameters obtained by the single-chip microcomputer U5 to a user terminal or to a cloud server in a wired or wireless communication manner.

[0046] Exemplarily, as Figure 6As shown, the communication unit 400 uses a serial-to-Wi-Fi chip U4 of model E103-W01. The microcontroller U5 sends the collected power consumption parameters to the cloud platform in the form of Wi-Fi through the serial-to-Wi-Fi chip U4, thereby realizing remote information transmission. At this time, the user can view the power consumption parameters at any time through the terminal supporting the cloud platform. In addition, the microcontroller U5 is also connected in series with a reset switch S1 through an IO port. When the microcontroller U5 detects that the reset switch S1 is closed, it sends a reset signal to the serial-to-Wi-Fi chip U4 to implement the reset function.

[0047] In some alternative embodiments, as Figure 1 shown, the intelligent and safe power consumption device further includes a monitoring unit 500. The monitoring unit 500 is electrically connected to the visualization unit 300 and is used to collect environmental temperature and humidity data in real time.

[0048] Exemplarily, as Figure 7 shown, the monitoring unit 500 uses a temperature and humidity integrated digital sensor J4 of model AM2301. The temperature and humidity integrated digital sensor J4 can obtain the environmental temperature and humidity data of the device of the present application. Since this sensor directly outputs digital signals, the IO port of the microcontroller U5 is directly connected to the data output port of the temperature and humidity integrated digital sensor J4. The microcontroller U5 and the temperature and humidity integrated digital sensor J4 communicate with each other every 2 seconds to continuously update the temperature and humidity data. The microcontroller U5 can send the collected temperature and humidity data to the cloud platform in the form of Wi-Fi through the serial-to-Wi-Fi chip U4. At this time, the user can view the temperature and humidity data at any time through the terminal supporting the cloud platform. In addition, the microcontroller U5 can also locally display the collected temperature and humidity data through the display module 320.

[0049] In some alternative embodiments, as Figure 1 shown, the intelligent and safe power consumption device further includes a clock unit 600. The clock unit 600 is electrically connected to the visualization unit 300, and the clock unit 600 is used to obtain time data in real time.

[0050] Exemplarily, as Figure 8 shown, the monitoring unit 500 uses a real-time clock chip U6 of model SD3078. The real-time clock chip U6 is powered by a CR1220 button battery for backup power supply, that is, when the main power supply of the real-time clock chip U6 disappears, it is powered by the CR1220 button battery to keep it working properly. The microcontroller U5 passes through I 2C bus communicates with the real-time clock chip U6 to obtain the current year, month, day, hour, minute, and second data in real time. At this time, the single-chip microcomputer U5 can send the collected year, month, day, hour, minute, and second data to the cloud platform through the serial port to Wi-Fi chip U4 in the form of WiFi, and the user can view it at any time through the terminal matched with the cloud platform. Of course, the single-chip microcomputer U5 can also display the collected year, month, day, hour, minute, and second data locally through the display module 320.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent and safe power consumption device, characterized in that, The intelligent safe power consumption device includes: an AC-DC unit (100) electrically connected to the power supply side to convert an AC voltage into a DC voltage; a safety acquisition unit (200) electrically connected to the power supply side to acquire power consumption parameters for supplying power to the load side; a visualization unit (300) electrically connected to the safety acquisition unit (200) and the AC-DC unit (100) to visually display the acquired power consumption parameters in real time.

2. The intelligent safe power consumption device according to claim 1, wherein The safety acquisition unit (200) includes a current transformer (210) and an electric energy metering module (220). The input end of the current transformer (210) is electrically connected to the power supply side, and the input end of the electric energy metering module (220) is electrically connected to the output end of the current transformer (210). The electric energy metering module (220) outputs the power consumption parameters, where the power consumption parameters include voltage, current, active power, apparent power, and power factor.

3. The intelligent safe power consumption device according to claim 2, characterized in that, The AC-DC unit (100) includes a first step-down module (110) and a first voltage stabilizing module (120). The input end of the first step-down module (110) is electrically connected to the power supply side to output a first DC voltage. The input end of the first voltage stabilizing module (120) is electrically connected to the output end of the first step-down module (110) to output a second DC voltage. The output end of the first voltage stabilizing module (120) is electrically connected to the visualization unit (300).

4. The intelligent safe power consumption device according to claim 3, wherein, The AC-DC unit (100) further includes a second voltage stabilizing module (130) connected in parallel between the output end of the first step-down module (110) and the input end of the first voltage stabilizing module (120).

5. The intelligent safe power consumption device according to claim 4, wherein The AC-DC unit (100) further includes a filtering and reactive power compensation module (140) connected in parallel between the power supply side and the input end of the first step-down module (110).

6. The intelligent safe power consumption device according to claim 5, characterized in that, The AC-DC unit (100) further includes a second step-down module (150) whose input end is electrically connected to the power supply side and the output end of the first voltage stabilizing module (120) to output a third DC voltage, where the third DC voltage is less than the second DC voltage.

7. The intelligent safe power consumption device according to any one of claims 1 to 6, characterized in that, The visualization unit (300) includes a control module (310) and a display module (320). The control module (310) uses the DC voltage at the output end of the AC-DC unit (100) as the working power supply. Both the safety acquisition unit (200) and the display module (320) are electrically connected to the control module (310).

8. The intelligent and safe power consumption device according to any one of claims 1 to 6, characterized in that, The intelligent safe power consumption device further includes a communication unit (400) electrically connected to the visualization unit (300) for communicating with a remote terminal and / or a server.

9. The intelligent safe power consumption device according to any one of claims 1 to 6, characterized in that, The intelligent safe power consumption device further includes a monitoring unit (500) electrically connected to the visualization unit (300) for real-time acquisition of ambient temperature and humidity data.

10. The intelligent and safe power consumption device according to any one of claims 1 to 6, characterized in that, The intelligent safe power consumption device further includes a clock unit (600), and the clock unit (600) is electrically connected to the visualization unit (300) for obtaining time data in real time.

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