CN218940657U - Phase-ground short-circuit protection device with wireless communication - Google Patents
Phase-ground short-circuit protection device with wireless communication Download PDFInfo
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- CN218940657U CN218940657U CN202223430366.1U CN202223430366U CN218940657U CN 218940657 U CN218940657 U CN 218940657U CN 202223430366 U CN202223430366 U CN 202223430366U CN 218940657 U CN218940657 U CN 218940657U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The utility model relates to a phase-to-ground short-circuit protection device with wireless communication, which comprises a main body module and an external wireless communication module, wherein the main body module is connected with the wireless communication module through network cable signals; the main body module comprises a front shell surface cover assembly and a rear shell assembly, wherein the rear shell assembly is a shell with an opening on the top surface, and the front shell surface cover assembly is arranged on the top surface of the rear shell assembly; the front shell surface cover assembly comprises a front shell, a first circuit board, a second circuit board, a third circuit board and a fourth circuit board are arranged in the rear shell assembly, the second circuit board, the third circuit board and the fourth circuit board are arranged below the first circuit board in parallel, the third circuit board is arranged between the second circuit board and the fourth circuit board, and the second circuit board, the third circuit board and the fourth circuit board are connected with the first circuit board through contact pins respectively. The utility model effectively utilizes the advantages of the rogowski coil; the high-precision low-cost direct measurement of larger current is realized, and meanwhile, the safety and the easy maintainability of the whole measurement circuit are ensured.
Description
Technical Field
The utility model relates to the technical field of electric power meters, in particular to a phase-ground short-circuit protection device with wireless communication.
Background
Similar products of the phase-to-ground short-circuiting device in the current market have single functions, can only measure zero sequence current or leakage current of a feeder line loop, perform basic phase-to-ground short-circuiting protection, have single protection functions, and cannot accurately measure electric parameters such as current, voltage, power, electric energy and the like in real time; the user often needs to additionally configure the electric power instrument and the protection device, so that the difficulty of wiring construction and parameter setting of the user is greatly increased. Therefore, a phase-to-ground short-circuit protection device with wireless communication is needed.
Disclosure of Invention
The utility model aims to overcome the defects and provide a phase-ground short-circuit protection device with wireless communication, which has the measuring functions of current, voltage, power, electric energy and the like on the basis of realizing phase-ground short-circuit protection.
The purpose of the utility model is realized in the following way:
the phase-to-ground short-circuit protection device with wireless communication comprises a main body module and an external wireless communication module, wherein the main body module is connected with the wireless communication module through network cable signals; the main body module comprises a front shell surface cover assembly and a rear shell assembly, wherein the rear shell assembly is a shell with an opening on the top surface, and the front shell surface cover assembly is arranged on the top surface of the rear shell assembly; the front shell surface cover assembly comprises a front shell, a first circuit board, a second circuit board, a third circuit board and a fourth circuit board are arranged in the rear shell assembly, the second circuit board, the third circuit board and the fourth circuit board are arranged below the first circuit board in parallel, the third circuit board is arranged between the second circuit board and the fourth circuit board, and the second circuit board, the third circuit board and the fourth circuit board are connected with the first circuit board through pins respectively; the first circuit board comprises an MCU and an operation display module, the second circuit board comprises a switching power supply module, a relay output module and an analog output module, the third circuit board comprises a switching value input module and a communication module, and the fourth circuit board comprises an electric parameter acquisition module.
Preferably, the front shell cover assembly is connected through a buckle clamping groove on the shell.
Preferably, the front shell is provided with a USB cover plate and a key cap.
Preferably, the left and right sides of the back shell component are respectively provided with a left fixing component and a right fixing component, which are used for being fixed on the two sides of the main body module during embedded installation.
Preferably, the output end of the MCU is respectively connected with the relay output module, the analog output module, the communication module and the operation display module.
Preferably, the input end of the MCU is respectively connected with the output ends of the electric parameter acquisition module, the switching power supply module, the switching value input module and the operation display module.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The utility model provides a phase-ground short-circuit protection device with a wireless communication module, which increases the measurement of electric parameters such as current, voltage, power, electric energy and the like on the basis of realizing phase-ground short-circuit protection, and provides protection functions such as three-section time-limit zero sequence overcurrent, inverse time-limit zero sequence overcurrent, zero line current protection, inverse time-limit overcurrent, three-section time-limit overcurrent, current imbalance, voltage imbalance, underload, overvoltage, undervoltage, voltage imbalance, phase sequence, overpower, underpower, short circuit, electric leakage, temperature and the like on the basis of the electric parameters;
(2) The phase-to-ground short-circuit protection device is provided with the external wireless expansion module, can select wireless communication modes according to the requirements of clients, comprises the wireless communication modes of 4G, rola and the like, can directly communicate with a public mobile communication base station, and can directly communicate with a cloud or a local server by the base station without using equipment such as a gateway, a client server and the like, thereby reducing the cost;
(3) The phase-to-ground short-circuit protection device has high integration level, integrates various functions of measurement, communication, protection, switching-on and switching-off control and the like on the basis of the original phase-to-ground short-circuit device, does not need to additionally install a measuring instrument and a protection device in a loop, saves installation space and reduces wiring difficulty.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an exploded view of the body module of the present utility model.
Fig. 3 is a schematic circuit diagram of the present utility model.
Wherein:
the main body module 1, the front shell cover assembly 10, the USB cover plate 11, the key cap 12, the front shell 13, the left fixing assembly 14, the right fixing assembly 15, the first circuit board 16, the second circuit board 17, the third circuit board 18, the fourth circuit board 19, the rear shell assembly 110 and the wireless communication module 2.
Detailed Description
In order to better understand the technical solution of the present utility model, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present utility model, but are merely examples of embodiments that may be employed by the present utility model. It should be noted that, the description herein of the positional relationship of the components, such as the component a being located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Example 1:
referring to fig. 1-3, fig. 1 depicts a schematic structural view of the present utility model. As shown in the figure, the phase-to-ground short-circuit protection device with wireless communication comprises a main body module 1 and an external wireless communication module 2, wherein the main body module 1 and the wireless communication module 2 are connected through network cable signals; the main body module 1 comprises a front shell cover assembly 10 and a rear shell assembly 110, wherein the rear shell assembly 110 is a shell with an opening on the top surface, and the front shell cover assembly 10 is arranged on the top surface of the rear shell assembly 110 and is connected through a clamping groove on the shell.
The front shell surface cover assembly 10 comprises a front shell 13, wherein a USB cover plate 11 and a key cap 12 are arranged on the front shell 13; the rear housing assembly 110 is internally provided with a first circuit board 16, a second circuit board 17, a third circuit board 18 and a fourth circuit board 19, the second circuit board 17, the third circuit board 18 and the fourth circuit board 19 are arranged below the first circuit board 16 in parallel, the third circuit board 18 is arranged between the second circuit board 17 and the fourth circuit board 19, and the second circuit board 17, the third circuit board 18 and the fourth circuit board 19 are respectively connected with the first circuit board 16 through pins.
The left and right sides of the back shell assembly 110 are respectively provided with a left fixing assembly 14 and a right fixing assembly 15, which are used for being fixed on the two sides of the main body module 1 during embedded installation.
The first circuit board 16 comprises an MCU and an operation display module, the second circuit board 17 comprises a switching power supply module, a relay output module and an analog output module, the third circuit board 18 comprises a switching value input module and a communication module, and the fourth circuit board 19 comprises an electric parameter acquisition module; the output end of the MCU is respectively connected with the relay output module, the analog quantity output module, the communication module and the operation display module, and the input end of the MCU is respectively connected with the output ends of the electric parameter acquisition module, the switching power supply module, the switching value input module and the operation display module.
The switching power supply module converts an AC220V power supply into a low-voltage direct current and provides power for the MCU, the switching value input module, the analog value output module and the communication module.
The electric parameter acquisition module is used for acquiring current, voltage and zero sequence current/leakage current signals of the main loop, providing the acquired electric parameters for the MCU, and providing the basis for the acquisition and display of the electric parameters and various protections.
The relay output module controls relay output action according to the MCU instruction;
the switching value input module is used for collecting digital signals accessed from outside.
The operation display module is used for providing a human-computer interface and comprises a dot matrix liquid crystal display, operation keys and an indicator lamp.
The external wireless communication module 2 is connected with the main body module 1 through a network cable and is used for receiving and transmitting data in a wireless communication mode.
Working principle:
the utility model provides a phase-ground short-circuit protection device with wireless communication, which has the measuring functions of current, voltage, power, electric energy and the like, and simultaneously provides the protection functions of phase-ground short-circuit, three-section timing zero sequence overcurrent, inverse timing zero sequence overcurrent, zero line current protection, inverse timing overcurrent, three-section timing overcurrent, current imbalance, voltage imbalance, underload, overvoltage, undervoltage, voltage imbalance, phase sequence, overpower, underpower, short-circuit, electric leakage, temperature and the like.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (6)
1. A phase-to-ground short-circuit protection device with wireless communication is characterized in that: the wireless communication system comprises a main body module (1) and an external wireless communication module (2), wherein the main body module (1) is connected with the wireless communication module (2) through network cable signals; the main body module (1) comprises a front shell surface cover assembly (10) and a rear shell assembly (110), wherein the rear shell assembly (110) is a shell with an opening on the top surface, and the front shell surface cover assembly (10) is arranged on the top surface of the rear shell assembly (110); the front shell surface cover assembly (10) comprises a front shell (13), a first circuit board (16), a second circuit board (17), a third circuit board (18) and a fourth circuit board (19) are arranged in the rear shell assembly (110), the second circuit board (17), the third circuit board (18) and the fourth circuit board (19) are arranged below the first circuit board (16) in parallel, the third circuit board (18) is arranged between the second circuit board (17) and the fourth circuit board (19), and the second circuit board (17), the third circuit board (18) and the fourth circuit board (19) are connected with the first circuit board (16) through contact pins respectively; the first circuit board (16) comprises an MCU and an operation display module, the second circuit board (17) comprises a switching power supply module, a relay output module and an analog output module, the third circuit board (18) comprises a switching value input module and a communication module, and the fourth circuit board (19) comprises an electric parameter acquisition module.
2. The phase-to-ground short circuit protection device with wireless communication according to claim 1, wherein: the front shell surface cover assembly (10) is connected through a clamping groove on the shell.
3. The phase-to-ground short circuit protection device with wireless communication according to claim 2, wherein: the front shell (13) is provided with a USB cover plate (11) and a key cap (12).
4. The phase-to-ground short circuit protection device with wireless communication according to claim 1, wherein: the left side and the right side of the back shell component (110) are respectively provided with a left fixing component (14) and a right fixing component (15) which are used for being fixed on the two sides of the main body module (1) during embedded installation.
5. The phase-to-ground short circuit protection device with wireless communication according to claim 1, wherein: the output end of the MCU is respectively connected with the relay output module, the analog output module, the communication module and the operation display module.
6. The phase-to-ground short circuit protection device with wireless communication according to claim 1, wherein: the input end of the MCU is respectively connected with the output ends of the electric parameter acquisition module, the switching power supply module, the switching value input module and the operation display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223430366.1U CN218940657U (en) | 2022-12-21 | 2022-12-21 | Phase-ground short-circuit protection device with wireless communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223430366.1U CN218940657U (en) | 2022-12-21 | 2022-12-21 | Phase-ground short-circuit protection device with wireless communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218940657U true CN218940657U (en) | 2023-04-28 |
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ID=86088538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223430366.1U Active CN218940657U (en) | 2022-12-21 | 2022-12-21 | Phase-ground short-circuit protection device with wireless communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218940657U (en) |
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2022
- 2022-12-21 CN CN202223430366.1U patent/CN218940657U/en active Active
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