Intelligent power utilization monitoring device

Abstract

The utility model relates to an intelligent power utilization monitoring device, which comprises a shell, a data processing module, a detection module, a breaking protection module, a communication module, a human-computer interface module, a buzzer and a power supply module, wherein the data processing module is integrally mounted in the shell; the detection module, the breaking protection module, the communication module, the human-computer interface module, the buzzer and the power supply module are respectively connected with the data processing module; the power supply module supplies power to the modules, the shell is divided into an upper shell and a lower shell, and the upper shell is provided with a direct insertion type communication and power supply multiplexing interface and a plurality of external signal access ports. Voltage, current, power, power factor, harmonic wave, electric energy, residual current, temperature and fault arc signals in an electrical loop can be monitored at the same time, electrical fault characteristic parameters such as overvoltage, undervoltage, overcurrent, overload, residual current standard exceeding, overtemperature, fault arc and malignant load can be identified, and alarm and protection can be realized according to set conditions. The problems that an existing product is single in function, simple in protection logic and poor in communication networking capacity are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electricity safety monitoring and the field of the Internet of Things, and in particular to a smart electricity monitoring device. Background Art

[0002] According to the investigation data of the causes of fires, fires caused by electrical faults account for about 1 / 3 of the total number, and more than 60% of electrical fires are caused by electrical line faults such as short circuit, overload, leakage, conductor / contact point overheating, etc. Therefore, how to monitor the operating status of electrical lines in real time and cut off the power supply circuit in time when the above problems occur in the electrical system to protect the electrical lines and electrical equipment is a key technology in the field of electrical fire prevention. However, most of the widely used power monitoring devices currently have problems such as single function, simple protection logic, and poor communication networking capabilities, so they cannot fully meet the current electrical system automation fault protection needs. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a smart electricity monitoring device, which solves the problems of single function, simple protection logic and poor communication networking capability of existing products.

[0004] The technical solutions adopted by the utility model to solve the technical problems are as follows:

[0005] A smart electricity monitoring device comprises a detachably connected upper shell and a lower shell, a data processing module integratedly installed inside the upper shell and the lower shell, and a detection module, a disconnection protection module, a communication module, a human-machine interface module, a buzzer and a power module respectively connected to the data processing module; the power module supplies power to the above modules; the upper shell is provided with a plug-in communication and power multiplexing interface and an external signal access port.

[0006] Preferably, the disconnection protection module includes a magnetic latching relay, a manganese copper sampling resistor, and a copper busbar connecting component.

[0007] Preferably, the magnetic latching relay and the copper busbar connecting component are fixedly connected by using high temperature glue, and the manganese copper sampling resistor and the copper busbar connecting component are fixedly connected by electron beam welding.

[0008] Preferably, the detection module comprises a current detection module, a voltage detection module, a residual current detection module, a temperature detection module and a fault arc detection module.

[0009] Preferably, the current detection module includes a manganese copper sampling resistor and a filtering circuit, the voltage detection module includes a voltage divider circuit and a voltage sampling and filtering circuit, the residual current detection module includes a miniature residual current transformer and a residual current sampling and filtering circuit, the temperature detection module includes a temperature sensor and a temperature filtering and compensation circuit, and the fault arc detection module includes a miniature current transformer and a fault arc sampling and filtering circuit.

[0010] Preferably, the plug-in communication and power multiplexing interface includes communication interfaces A, B and power interfaces V+, V-, the communication module is connected to the external communication bus through the communication interfaces A, B, and the power module is connected to the external power supply line through the power interfaces V+, V-.

[0011] Preferably, the human-machine interface module includes an indicator light module and a button module, the human-machine interface module is embedded in the front side of the upper shell, the indicator light module and the button module are respectively connected to the data processing module, the indicator light module includes multiple LED indicator lights, and the button module includes multiple buttons.

[0012] Preferably, the buzzer is located on the upper side of the lower shell, a buzzer sound expansion hole is provided at a position of the buzzer corresponding to the front side of the upper shell, and the data processing module is connected to the buzzer.

[0013] Preferably, a guide rail slot, a buckle slot and a movable buckle are provided at the bottom of the shell, and the movable buckle is placed in the buckle slot.

[0014] Preferably, the external signal access port includes a movable flap, an external signal access port placement chamber and an external signal access copper component, the external signal access copper component is placed in the external signal access port placement chamber, and the movable flap is arranged outside the external signal access port placement chamber.

[0015] Beneficial effects of the utility model:

[0016] 1. The device is provided with a detection module, through which the current, voltage, residual current, temperature and fault arc signals of the monitored electrical circuit are collected, and the above-mentioned sampling signals are filtered and amplified before being transmitted to the data processing module; the data processing module analyzes and calculates the received sampling signals, and when the calculated voltage, current, power, residual current, temperature, fault arc, and malicious load characteristic parameters exceed the set alarm threshold range, the data processing module drives the buzzer to alarm, and the human-machine interface module displays the alarm status; when the calculated voltage, current, power, residual current, temperature, fault arc, and malicious load characteristic parameters exceed the set alarm threshold range, the data processing module drives the buzzer to alarm, and the human-machine interface module displays the alarm status; When the arc and vicious load characteristic parameters exceed the set protection threshold range, the data processing module drives the disconnection protection module to operate, disconnects the electrical circuit for protection, drives the buzzer to alarm, and displays the current opening and closing status through the human-machine interface module, and supports wired communication to realize data interaction with the outside. Compared with the prior art, the device described in the utility model has rich measurement functions, perfect protection logic, reliable protection action, no external voltage / current / residual current / temperature sensor is required, the size is compact, the overall integration is good, and the networking is convenient, which solves the problems of single function, simple protection logic and poor communication networking capability of existing products.

[0017] 2. Since the data processing module of the device is respectively connected to the communication module, the human-machine interface module and the disconnecting protection module, the data processing module exchanges data with the external system through the communication module; the data processing module analyzes and processes the external communication message received by the communication module, and when it is determined that a remote control action command is received, the data processing module implements operations such as opening, closing, and resetting according to the remote control action command, and the data processing module obtains external operation signals through the human-machine interface module, and implements manual protection or control operations such as opening, closing, resetting, and parameter setting according to the external operation signals; compared with the prior art, the device can realize three opening and closing control / protection methods: automatic, remote control, and manual. When the data processing module determines that an alarm / protection event occurs or determines that a remote control action command is received or determines that a manual protection signal is received, the disconnecting protection module is controlled to perform opening, closing, and resetting actions, thereby better improving the safety of the device and avoiding the situation where a component fails and causes missed monitoring or erroneous monitoring.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0020] Figure 1This is a functional module block diagram of a smart electricity monitoring device proposed in the utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of a smart electricity monitoring device described in the utility model.

[0022] Figure 3 This is a top view of the upper shell of a smart electricity monitoring device described in the utility model.

[0023] Figure 4 This is a front view of the upper shell of a smart electricity monitoring device described in the utility model.

[0024] Figure 5 This is a three-dimensional structural diagram of the lower shell of a smart electricity monitoring device described in the utility model.

[0025] Figure 6 A bottom view of the lower shell of a smart electricity monitoring device described in the utility model

[0026] Figure 7 A top view of the lower shell of a smart electricity monitoring device described in the utility model

[0027] Figure 8 This is a schematic diagram of the structure of a detection and disconnection protection module of a smart electricity monitoring device proposed in the utility model.

[0028] Fig. 9 This is a schematic diagram of the direct-plug communication / power multiplexing interface connection of a smart electricity monitoring device proposed in the utility model.

[0029] Reference numerals:

[0030] 1. External signal access port; 2-1. LED indicator light; 2-2. Button; 3. Buzzer amplification hole; 4. Plug-in communication and power multiplexing interface; 5. Movable flip cover; 6. External signal access port placement room; 7. Guide rail slot; 8. Buckle slot; 9. Movable buckle; 10. Magnetic holding relay; 11. Manganese copper sampling resistor; 12. Copper busbar connection component; 13. Miniature current transformer; 14. Miniature residual current transformer; 15-1. Live signal wire; 15-2. Neutral signal wire; 16. External signal access copper component; 17. Temperature sensor; 18. Upper shell; 19. Lower shell. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. 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.

[0032] The utility model provides a smart electricity monitoring device, such as Figure 1-9 As shown, it includes a detachably connected upper shell 18 and a lower shell 19, a data processing module integratedly installed inside the upper shell 18 and the lower shell 19, and a detection module, a disconnection protection module, a communication module, a human-machine interface module, a buzzer and a power module respectively connected to the data processing module; the power module supplies power to the above modules, and the upper shell is provided with a plug-in communication and power multiplexing interface 4 and an external signal access port 1, the external signal access port 1 includes 4 terminals (2 incoming terminals, 2 outgoing terminals), and the external signal accessed is 1 channel (2 signal lines, live wire + neutral wire). During actual wiring, the external live wire and neutral wire are first connected to the two incoming terminals respectively, and then connected from the two outgoing terminals respectively.

[0033] like Figure 1-4As shown, the device obtains external signals by connecting the external line through the external signal access port 1, and the detection module is connected to the external signal access port 1. The sampling signals of external current, voltage, residual current and temperature parameters are obtained through the detection module, and the signals are filtered and amplified, and the processing results are transmitted to the data processing module; the data processing module (using the MKL16 series processor of NXP) is connected to the detection module, and the acquired current, voltage, residual current and temperature sampling signals are analyzed and calculated by the data processing module to determine the real-time measurement values ​​of voltage, current, power, residual current, temperature, fault arc and malicious load characteristic parameters, and the data processing module makes alarm / protection judgments according to the calculation results and the preset alarm / protection thresholds; the data processing module is connected to the communication module, and the data processing module exchanges data with the external system through the communication module; the data processing module The data processing module analyzes and processes the external communication message received by the communication module. When it is determined that a remote control action command has been received, the data processing module implements operations such as opening, closing, and resetting according to the remote control action command; the data processing module is connected to the human-machine interface module, and the above-mentioned alarm information / protection information is displayed through the human-machine interface module and the external operation signal is obtained through the human-machine interface module, so that the data processing module implements manual protection or control operations such as opening, closing, resetting, and parameter setting according to the external operation signal; the data processing module is connected to the disconnection protection module. When the data processing module determines that an alarm / protection event occurs or a remote control action command is received or a manual protection signal is received, the data processing module sends a driving signal to the disconnection protection module to control the disconnection protection module to perform opening, closing, and resetting actions; the data processing module is connected to a buzzer. When an alarm / protection event is triggered, the data processing module drives the buzzer to sound an alarm.

[0034] Furthermore, since the data processing module of the device is respectively connected to the communication module, the human-machine interface module and the disconnecting protection module, the device can realize three opening and closing control / protection methods: automatic, remote control and manual, compared with the prior art. When the data processing module determines that an alarm / protection event has occurred or determines that a remote control action command has been received or determines that a manual protection signal has been received, the disconnecting protection module is controlled to perform opening, closing and resetting actions, thereby better improving the safety of the device and avoiding the situation where a component fails and causes missed monitoring or erroneous monitoring.

[0035] Further, such as Figure 1 , Figure 8 As shown, the disconnection protection module includes a magnetic latching relay 10, a manganese copper sampling resistor 11, and a copper busbar connecting component 12. When receiving a driving signal from the data processing module, the magnetic latching relay 10 implements a corresponding opening / closing action.

[0036] Furthermore, the magnetic latching relay 10 and the copper busbar connecting component 12 are fixedly connected by high-temperature glue, and the manganese copper sampling resistor 11 and the copper busbar connecting component are fixedly connected by electron beam welding, which can better fix the disconnect protection module and avoid damage to the device due to vibration.

[0037] Further, such as Figure 1 , Figure 8 As shown, the detection module includes a current detection module, a voltage detection module, a residual current detection module, a temperature detection module and a fault arc detection module. The device obtains sampling signals of external current, voltage, residual current and temperature parameters through the current detection module, voltage detection module, residual current detection module and temperature detection module, filters and amplifies the signals, and transmits the processing results to the data processing module, so that the monitoring of the device is more accurate and avoids false alarms and missed alarms.

[0038] Further, such as Figure 8 As shown, the current detection module includes a manganese copper sampling resistor 11 and a filtering circuit, the voltage detection module includes a voltage divider circuit and a voltage sampling and filtering circuit, the residual current detection module includes a miniature residual current transformer 14 and a residual current sampling and filtering circuit, the temperature detection module includes a temperature sensor 17 and a temperature filtering and compensation circuit, and the fault arc detection module includes a miniature current transformer 13 and a fault arc sampling and filtering circuit.

[0039] like Figure 5 As shown, the external signal is connected to the copper component. The external current signal flows through the copper component and the manganese copper sampling resistor 11, and the manganese copper sampling resistor 11 samples the external current signal; the miniature current transformer 13 can sample the external fault arc signal through the copper component and the live signal wire 15-1; the miniature residual current transformer 14 samples the residual current signal in the external line through the copper component and the live signal wire 15-1 and the neutral signal wire 15-2.

[0040] Further, such as Figure 4 , Fig. 9 As shown, the plug-in communication and power multiplexing interface 4 includes communication interfaces A, B and power interfaces V+, V-. The communication module is connected to the external communication bus through the communication interfaces A, B to realize the communication connection between the smart power monitoring modules and between the smart power monitoring modules and the external system described in the utility model; the power module is connected to the external power supply line through the power interfaces V+, V-, which can better connect to the external power supply and power the modules of the device.

[0041] Further, such as Figure 2As shown, the human-machine interface module includes an indicator light module and a button module, and the human-machine interface module is embedded in the front of the upper shell. The indicator light module and the button module are respectively connected to the data processing module, the indicator light module includes a plurality of LED indicator lights 2-1, and the button module includes a plurality of buttons 2-2. The alarm information / protection information generated by the data processing module is displayed through the LED indicator light 2-1; the data processing module obtains an external operation signal through the button 2-2, and implements manual protection or control operations such as opening, closing, resetting, and parameter setting according to the external operation signal.

[0042] Further, such as Figure 2 , Figure 5-7 As shown, the buzzer is located on the upper side of the lower shell, and a buzzer sound amplification hole 3 is provided at a position of the buzzer corresponding to the front of the upper shell. The data processing module is connected to the buzzer. When an alarm / protection event is triggered, the data processing module drives the buzzer to sound an alarm, and amplifies the sound through the buzzer sound amplification hole 3 to prevent the sound from being too small to be ignored by the operator.

[0043] Further, such as Figure 5-7 As shown, a guide rail slot 7, a buckle slot 8 and an active buckle 9 are provided at the bottom of the shell. The active buckle 9 is placed in the buckle slot 8. When installing the device, pull down the active buckle 9, insert the guide rail in the distribution box / distribution cabinet into the guide rail slot 7, press the active buckle 9, and the device can be fixed on the guide rail. The power module is connected through the distribution box / distribution cabinet as an external power supply to power the device.

[0044] Further, such as Figure 2-7 As shown, the external signal access port includes a movable flap 5, an external signal access port placement chamber 6 and an external signal access copper component 16. The external signal access copper component 16 is placed in the external signal access port placement chamber 6, and the movable flap 5 is arranged outside the external signal access port placement chamber 6. The movable flap 5 is used to protect the external signal access port to prevent loose connection.

[0045] To summarize, the device connects to an external line through the external signal access port 1 to obtain an external signal, and the detection module is connected to the external signal access port 1. The current, voltage, residual current, temperature and fault arc signal of the monitored electrical circuit are collected through the detection module, and the above-mentioned sampling signals are filtered and amplified before being transmitted to the data processing module; when the calculated voltage, current, power, residual current, temperature, fault arc, and malicious load characteristic parameters exceed the set alarm threshold range, the data processing module drives the buzzer to alarm, and the alarm status is displayed through the human-machine interface module; when the calculated voltage, current, power, residual current, temperature, fault arc, and malicious load characteristic parameters exceed the set protection threshold range, the data processing module drives the disconnection protection module to operate, disconnects the electrical circuit for protection, and drives the buzzer to alarm, and displays the alarm status through the human-machine interface module. The module displays the current opening and closing status, exchanges data with the external system through the communication module, and supports wired communication to realize data interaction with the outside. The data processing module described in this device is connected to the communication module, the human-machine interface module and the disconnection protection module respectively. Compared with the prior art, this device can realize three opening and closing control / protection methods: automatic, remote control and manual. When the data processing module determines that an alarm / protection event occurs or determines that a remote control action command is received or a manual protection signal is received, the disconnection protection module is controlled to perform opening, closing and resetting actions, thereby better improving the safety of the device and avoiding the situation where a component fails and causes missed monitoring or erroneous monitoring. The device described in this utility model has rich measurement functions, perfect protection logic, reliable protection action, no external voltage / current / residual current / temperature sensor is required, and it is compact, has good overall integration and is convenient for networking. The device can control the opening and closing of the external electrical circuit according to the protection control logic, protection control command or manual control signal through the disconnection protection module; the protection control logic is triggered by the data processing module after judging according to the signal detected by the detection module; the protection control command is triggered by the data processing module after parsing according to the external communication message received by the communication module; the manual control signal is triggered after judging by the data processing module according to the signal detected by the key module in the human-machine interface module, which solves the problems of single function, simple protection logic and poor communication networking capability of existing products.

[0046] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0048] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A smart electricity monitoring device, characterized in that: It includes a detachably connected upper shell and lower shell, a data processing module integratedly installed inside the upper shell and the lower shell, and a detection module, a disconnection protection module, a communication module, a human-machine interface module, a buzzer and a power module respectively connected to the data processing module; the power module supplies power to the above modules, and the upper shell is provided with a plug-in communication and power multiplexing interface and an external signal access port.

2. The smart electricity monitoring device according to claim 1, characterized in that: The disconnection protection module includes a magnetic latching relay, a manganese copper sampling resistor, and a copper busbar connecting component.

3. The smart electricity monitoring device according to claim 2, characterized in that: The magnetic latching relay and the copper busbar connecting component are fixedly connected by high temperature glue, and the manganese copper sampling resistor and the copper busbar connecting component are fixedly connected by electron beam welding.

4. The smart electricity monitoring device according to claim 1, characterized in that: The detection module includes a current detection module, a voltage detection module, a residual current detection module, a temperature detection module and a fault arc detection module.

5. The smart electricity monitoring device according to claim 4, characterized in that: The current detection module includes a manganese copper sampling resistor and a filtering circuit, the voltage detection module includes a voltage divider circuit and a voltage sampling and filtering circuit, the residual current detection module includes a miniature residual current transformer and a residual current sampling and filtering circuit, the temperature detection module includes a temperature sensor and a temperature filtering and compensation circuit, and the fault arc detection module includes a miniature current transformer and a fault arc sampling and filtering circuit.

6. The smart electricity monitoring device according to claim 1, characterized in that: The plug-in communication and power multiplexing interface includes communication interfaces A, B and power interfaces V+, V-. The communication module is connected to the external communication bus through the communication interfaces A, B, and the power module is connected to the external power supply line through the power interfaces V+, V-.

7. The smart electricity monitoring device according to claim 1, characterized in that: The human-machine interface module includes an indicator light module and a button module. The human-machine interface module is embedded in the front of the upper shell. The indicator light module and the button module are respectively connected to the data processing module. The indicator light module includes multiple LED indicator lights, and the button module includes multiple buttons.

8. The smart electricity monitoring device according to claim 1, characterized in that: The buzzer is located at the upper side of the lower shell, a buzzer sound expansion hole is provided at a position of the buzzer corresponding to the front side of the upper shell, and the data processing module is connected to the buzzer.

9. The smart electricity monitoring device according to claim 1, characterized in that: The bottom of the lower shell is provided with a guide rail slot, a buckle slot and a movable buckle, and the movable buckle is placed in the buckle slot.

10. The smart electricity monitoring device according to claim 1, characterized in that: The external signal access port includes a movable flip cover, an external signal access port placement chamber and an external signal access copper component. The external signal access copper component is placed in the external signal access port placement chamber, and the movable flip cover is arranged outside the external signal access port placement chamber.

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