CN220342103U - Intelligent power distribution terminal core unit - Google Patents
Intelligent power distribution terminal core unit Download PDFInfo
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- CN220342103U CN220342103U CN202321520711.2U CN202321520711U CN220342103U CN 220342103 U CN220342103 U CN 220342103U CN 202321520711 U CN202321520711 U CN 202321520711U CN 220342103 U CN220342103 U CN 220342103U
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- 238000012423 maintenance Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 17
- 238000005070 sampling Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 7
- 230000011664 signaling Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000004927 fusion Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of 10kV two-time fusion sleeve column circuit breaker intelligent power distribution terminals, in particular to an intelligent power distribution terminal core unit which comprises a front shell and a rear shell, wherein a CPU board is arranged in the front shell. The utility model has the advantages that: 1) The CPU board adopts a single-sided board structure, has reasonable layout and rich interfaces. 2) The CPU reduces overall power consumption. 3) Remote maintenance may be performed.
Description
Technical Field
The utility model relates to the technical field of intelligent power distribution terminals of 10kV and secondary fusion-combined loop column circuit breakers, in particular to an intelligent power distribution terminal core unit.
Background
The intelligent power distribution terminal is a switch monitoring device arranged beside the feeder switch, has the functions of remote control, remote measurement, remote signaling and fault detection, is communicated with a power distribution automation main station, provides information required by the running condition and various parameters of a power distribution system and monitoring control, comprises a switch state, electric energy parameters, interphase faults, ground faults and parameters during faults, reports to a superior main station or a substation according to a communication protocol, receives commands issued by the superior, and realizes fault identification, fault positioning, fault isolation and power supply recovery of the feeder circuit.
The Chinese patent application No. 201921800393.9 discloses an intelligent power distribution terminal and system, comprising an intelligent power distribution terminal circuit which adopts a functional module structure; the intelligent power distribution terminal circuit is arranged on the CPU board; the intelligent power distribution terminal circuit at least comprises a calculation module, a physical quantity interface module and an upper communication module; the physical quantity interface module and the upper communication module are connected with the calculation module; the system also comprises a control output module; and the control output module is used for controlling the shunt release and the electric operating mechanism of the circuit breaker. The conventional intelligent power distribution terminal consists of a front case, a core unit, a power module, a wireless module, an external interface, a storage battery and various accessories, wherein the most important components of the whole intelligent power distribution terminal of the core unit consist of the front case, a motherboard, a power panel, a remote signaling panel, a cpu panel and an analog panel; the power panel, the remote signaling panel, the cpu panel and the analog panel are spliced on the motherboard and the ports are exposed from the shell, so that the structure is complex, the installation wiring is complex, the product factory assembly wiring debugging and the like are inconvenient, and the cost is high.
Disclosure of Invention
The utility model aims to provide an intelligent power distribution terminal core unit, which overcomes the defects of the prior art, takes a high-performance Freescale K64 processor as a hardware development platform, and ensures stability, reliability, high performance, high precision, low cost and easy installation by adopting a front wiring plug-in type structure mode in design of a CPU control unit.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
the intelligent power distribution terminal core unit comprises a front shell body consisting of a front shell body and a rear shell body, wherein a CPU board is arranged in the front shell body, and is characterized in that a CPU processor is arranged on the CPU board, the CPU processor is respectively connected with an indicator lamp, an RTC clock, a DDR (double data rate), a FLASH, an encryption chip, a power module, a maintenance port, a network port, a switching relay, a zero voltage acquisition module, a voltage transformer, a current transformer and a DIO terminal I, the power module is connected with an external power supply through a DIO terminal II, the maintenance port is connected with a PC (personal computer) through a serial port terminal, the network port is connected with a master station through a network cable, the switching relay is connected with an external switch mechanism through a DIO terminal I, and the CPU processor is connected with a remote signaling switch through a corresponding terminal I; the front shell is provided with a protection pressing plate, a remote control pressing plate, a remote/on-site change-over switch, a reset button, a closing button, a brake-separating button and a pre-control button, and a CPU processor on the CPU board is connected with the protection pressing plate, the remote control pressing plate, the remote/on-site change-over switch, the reset button, the closing button, the brake-separating button and the pre-control button through a terminal wire with a lock catch.
The working principle of the utility model is as follows: the protection pressing plate is fixed on the front shell to realize the protection function input or the withdrawal, the remote control pressing plate is fixed on the front shell to realize the remote control function input or the withdrawal, the opening and closing and pre-control buttons are fixed on the front shell to realize the on-site control switch opening and closing, and the reset button is fixed on the CPU board to realize the equipment function reset. The CPU processor is a core part of the whole device and is used for carrying out sequence control, operation control, time control and data processing, communication of the upper computer and acquisition and processing of information of the lower hanging module. The voltage sampling terminal, the current sampling terminal, the serial port terminal, the DIO terminal I, DIO terminal II and the network port are data sampling and information communication interfaces.
Compared with the prior art, the utility model has the beneficial effects that: 1) The core CPU board adopts a single board form, has simple structure, reasonable layout and rich interfaces. 2) The main CPU adopts a Freescale K64 processor, the working main frequency of the processor can reach 120MHz at most, not only the abundant and high-performance peripheral interfaces are provided, but also the whole power consumption of the chip is greatly reduced. 3) The main processor is provided with 2 standard Ethernet RJ45 ports which can be externally connected with a notebook computer, and is maintained by special maintenance software, so that the main processor is remotely maintained, such as parameter modification, replacement and upgrading of each program module and the like, the on-site maintenance is convenient, and the utilization rate of the system is improved.
Drawings
FIG. 1 is a schematic block diagram of an embodiment architecture of the present utility model;
FIG. 2 is a schematic diagram of the overall assembly of an embodiment of the present utility model;
FIG. 3 is an exploded view of an embodiment of the present utility model;
FIG. 4 is a front isometric view of a CPU board in accordance with an embodiment of the utility model;
FIG. 5 is a rear isometric view of a CPU board in accordance with an embodiment of the utility model;
in the figure: 1-front shell, 2-protection pressing plate, 3-remote control pressing plate, 4-remote/on-site change-over switch, 5-reset button, 6-closing button, 7-opening button, 8-pre-control button, 9-CPU board, 10-rear shell, 901-voltage sampling terminal, 902-current sampling terminal, 903-indicator lamp, 904-serial port terminal, 905-encryption chip, 906-DIO terminal I, 907-DIO terminal II, 908-opening and closing relay, 909-power module, 910-CPU, 911-zero voltage acquisition module, 912-network port, 913-voltage transformer, 914-current transformer.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
Fig. 1-5 are schematic structural views of an embodiment of an intelligent power distribution terminal core unit according to the present utility model, which includes a front housing body consisting of a front housing body 1 and a rear housing body 10, and the whole core unit can be installed at a desired position according to the design. The utility model provides an intelligent power distribution terminal core unit, includes the preceding casing of constituteing by preceding casing and back casing, is equipped with the CPU board in the preceding casing, its characterized in that, be equipped with the CPU treater on the CPU board, the CPU treater respectively with the pilot lamp, the RTC clock, DDR, FLASH, encrypt the chip, power module, the maintenance mouth, the net gape, divide and close the relay, zero voltage collection module, voltage transformer, current transformer, DIO terminal I is connected, power module connects external power supply through DIO terminal II, the maintenance mouth is connected with the PC through serial ports terminal, the net gape is connected with the main website through the net twine, divide and close the relay and be connected with peripheral hardware switch mechanism through DIO terminal I, the zero voltage collection module, voltage transformer, current transformer is connected with external equipment through corresponding terminal. The front shell 1 is provided with a protection pressing plate 2, a remote control pressing plate 3, a remote/on-site transfer switch 4, a reset button 5, a closing button 6, a switching-off button 7 and a pre-control button 8, a CPU processor on the CPU board is connected with the protection pressing plate 2, the remote control pressing plate 3, the remote/on-site transfer switch 4, the reset button 5, the closing button 6, the switching-off button 7 and the pre-control button 8 through a terminal wire with a lock catch, the remote on-site transfer switch 4 is used for switching the remote or on-site operation, and the switching-off button 6, the switching-off button 7 and the pre-control button 8 are used for realizing on-site switching-off operation of the switch and resetting functions of the device through the reset button 5.
The CPU processor model is MK64FN1M0VLQ12, is a 32-bit 120MHzcortex-M4 microcontroller unit, is provided with a Floating Point Unit (FPU), is suitable for low-power consumption, USB/Ethernet connection and high-cost performance application of embedded SRAM up to 256KB, and has comprehensive support and expandability of a Kinetis series. The microcontroller unit has 100I/os, optimized for applications requiring large memory density and low power processing efficiency. The CPU processor is a core part of the whole device, mainly realizes the communication of the upper computer and the information acquisition of the lower hanging module, detects and isolates faults according to real-time data, executes an isolation scheme or executes an isolation instruction of the upper main station, and is used for carrying out sequential control, operation control, time control and data processing. The remote control pressing plate is communicated with the CPU, and responds to one path of opening command of the CPU. And the sending-up of the sent feedback information is completed at the same time of sending out. And the open loop is self-checked in the power-on and operation process. The open mold piece can be used for remote control: switch opening and closing, disconnecting link opening and closing, various motor devices, and the like. DDR is double rate synchronous dynamic random access memory, FLASH is FLASH memory device, and information and data storage is completed respectively.
In the embodiment, the CPU board 9 is mounted on the front shell 1 through a screw, the voltage sampling terminal 901 and the current sampling terminal 902 are arranged on the left front side of the CPU board 9, the surface is exposed through a hole on the front shell 1, and external voltage and current signals are connected with the terminals through a quick plug-in; indicator light 903 is above CPU board 9, exposing the surface through a hole in front housing 1 to indicate the normal operation or failure status of the core unit; the serial port terminal 904 is arranged below the CPU board, and is exposed on the surface through a hole on the front shell 1 for equipment maintenance and serial port communication; DIO terminal I906 and DIO terminal ii 907 are on the right front side of CPU board 9, and are exposed through holes in front housing 1, and are equipment remote signaling and remote control input/output ports and network port 912 for network communication.
In the embodiment, the CPU board adopts a single-panel structure, and a voltage sampling terminal, a current sampling terminal, an indicator lamp, a serial port terminal, an encryption chip and a DIO terminal I, DIO terminal II are arranged on one side of the CPU board, and a switching relay, a power module, a CPU processor, a zero voltage acquisition module, a network port, a voltage transformer and a current transformer are arranged on the other side of the CPU board. The encryption chip is of the model SC1161Y. The model of the voltage sampling terminal is STF-762V-06P; the current sampling terminal is STF-762V-08P. The type of the switching relay is G2RL-14-E-CN; the DIO terminal is STF-508V-18P. The model of the zero-voltage acquisition module is FTUS-EVT.006. The power supply module is a DC switching power supply with input 24V and output 5V.
In the embodiment, the encryption chip 905 is disposed at a front middle position of the CPU board 9, and all communication data is subjected to encryption processing; the on-off relay 908 is arranged at the upper left position behind the board, and the core unit realizes the on-off action of the switch through the control of the on-off coil of the on-off relay 908; the power module 909 supplies 5V power to the entire CPU board; the zero voltage acquisition module 911, the voltage transformer 913 and the current transformer 914 convert the voltage and current signals acquired by the external device into small voltage and current signals for processing by the CPU processor.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The intelligent power distribution terminal core unit comprises a front shell body consisting of a front shell body and a rear shell body, wherein a CPU board is arranged in the front shell body, and is characterized in that a CPU processor is arranged on the CPU board, the CPU processor is respectively connected with an indicator lamp, an RTC clock, a DDR (double data rate), a FLASH, an encryption chip, a power module, a maintenance port, a network port, a switching relay, a zero voltage acquisition module, a voltage transformer, a current transformer and a DIO terminal I, the power module is connected with an external power supply through a DIO terminal II, the maintenance port is connected with a PC (personal computer) through a serial port terminal, the network port is connected with a master station through a network cable, the switching relay is connected with an external switch mechanism through a DIO terminal I, and the CPU processor is connected with a remote signaling switch through a corresponding terminal I; the front shell is provided with a protection pressing plate, a remote control pressing plate, a remote/on-site change-over switch, a reset button, a closing button, a brake-separating button and a pre-control button, and a CPU processor on the CPU board is connected with the protection pressing plate, the remote control pressing plate, the remote/on-site change-over switch, the reset button, the closing button, the brake-separating button and the pre-control button through a terminal wire with a lock catch.
2. The intelligent power distribution terminal core unit according to claim 1, wherein the CPU board adopts a single-sided board structure, and the voltage sampling terminal and the current sampling terminal on the CPU board are arranged on one side of the CPU board, and the indicator light, the serial port terminal, the encryption chip and the DIO terminal I, DIO terminal ii are arranged on the other side of the CPU board.
3. The intelligent power distribution terminal core unit according to claim 1, wherein the CPU processor model MK64FN1M0VLQ12 is a 32-bit 120MHz Cortex-M4 microcontroller unit with a floating point processing unit.
4. The intelligent power distribution terminal core unit according to claim 1, wherein the encryption chip is of the type SC1161Y.
5. The intelligent power distribution terminal core unit according to claim 2, wherein the voltage sampling terminal is STF-762V-06P; the current sampling terminal is STF-762V-08P.
6. The intelligent power distribution terminal core unit according to claim 2, wherein the type of the switching relay is G2RL-14-E-CN; the DIO terminal is STF-508V-18P.
7. The intelligent power distribution terminal core unit of claim 1, wherein the zero voltage acquisition module is model number FTUS-evt.006.
8. The intelligent power distribution terminal core unit according to claim 1, wherein the power supply module is a DC switching power supply with an input of 24V and an output of 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321520711.2U CN220342103U (en) | 2023-06-14 | 2023-06-14 | Intelligent power distribution terminal core unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321520711.2U CN220342103U (en) | 2023-06-14 | 2023-06-14 | Intelligent power distribution terminal core unit |
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| Publication Number | Publication Date |
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| CN220342103U true CN220342103U (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321520711.2U Active CN220342103U (en) | 2023-06-14 | 2023-06-14 | Intelligent power distribution terminal core unit |
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| CN (1) | CN220342103U (en) |
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2023
- 2023-06-14 CN CN202321520711.2U patent/CN220342103U/en active Active
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