CN203734169U - IC coded lock power distribution cabinet - Google Patents

IC coded lock power distribution cabinet Download PDF

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Publication number
CN203734169U
CN203734169U CN201420052654.4U CN201420052654U CN203734169U CN 203734169 U CN203734169 U CN 203734169U CN 201420052654 U CN201420052654 U CN 201420052654U CN 203734169 U CN203734169 U CN 203734169U
Authority
CN
China
Prior art keywords
circuit
relay
cabinet
fuse
transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420052654.4U
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Chinese (zh)
Inventor
邬才斌
张维锡
周正
曾强
粟秋成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Sichuan Electric Power Co Ltd
Original Assignee
State Grid Sichuan Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Sichuan Electric Power Co Ltd filed Critical State Grid Sichuan Electric Power Co Ltd
Priority to CN201420052654.4U priority Critical patent/CN203734169U/en
Application granted granted Critical
Publication of CN203734169U publication Critical patent/CN203734169U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

An IC coded lock power distribution cabinet comprises a cabinet body and a cabinet door; the cabinet body is divided into an upper layer, a middle layer and a lower layer, wherein the lower layer is provided with a voltage transformer, a current transformer, a heater, a grounding busbar and a transformer, the middle layer is provided with a relay group, a lightning arrester and a fuse mounting beam provided with a fuse, and the upper layer is provided with an upper disconnecting switch and wall-through bushings; a main busbar and a branch busbar are led in through the wall-through bushings; the main busbar and the branch busbar are connected with the upper disconnecting switch; the upper disconnecting switch is connected with the relay group; the relay group is connected with the lightning arrester and the fuse; the cabinet door is provided with an IC access control unit; the IC access control unit includes a single-chip microcomputer; the single-chip microcomputer is connected with an electromagnetic lock control circuit, an indicator light circuit, a card reading unit, a display circuit, a buzzer circuit and a keyboard circuit; the electromagnetic lock control circuit comprises an amplifying unit and a relay, wherein the amplifying unit is composed of two triodes; and a normally-open moving contact of the relay is adopted as the switch of an electromagnetic lock.

Description

A kind of IC coded lock power distribution cabinet
Technical field
The utility model relates to switch cubicle technical field, provides a kind of simple in structure, a kind of IC coded lock power distribution cabinet with low cost.
Background technology
Along with the development of industrial technology, in low-voltage power supply system, enable power distribution cabinet more and more, particularly machine shop circuit the inside adopts the principle of centralized control circuit more to need power distribution cabinet.Whether rational relation is to the safe and reliable operation of whole apparatus for production line in the design of low-voltage distribution cabinet.Power distribution cabinet plays distribution electric energy in machine shop, and the effect of control appliance power supply, and what first the design and fabrication of power distribution cabinet was considered is the size of the load power of control object, could correctly select low-voltage electrical apparatus according to the size of load.Consider two kinds of power distribution cabinets of the larger employing of shop loading, one is power cabinet, and another kind is power cabinet, and power cabinet plays the effect of power distribution, and power cabinet plays the effect of control appliance power supply.
Electric power is the material technological foundation of modern civilization.There is no electric power, just there is no the modernization of national economy.The informationization of modern society and networking, be all based upon on electrified basis.Therefore,, if supply of electric power is interrupted suddenly, will electricity consumption department be caused to serious and far-reaching influence.Pretend the distribution work that supplies, for ensureing that normal work, study, life will be of great significance.To be well electricity consumption department and whole national economy service for distribution work, must reach following basic demand:
(1) safety---in supply, distribution and the use of electric power, there is not personal injury and equipment breakdown.
(2) reliable---should meet power consumer to power supply reliability and successional requirement.
(3) high-quality---should meet the requirement of power consumer to quality of voltage and frequency quality.
(4) economy---should make power supply-distribution system small investment, operating cost is low, and saves energy and reduce non-ferrous metal consumption as much as possible.
In addition, in for distribution work, also should reasonably process part and the overall situation, current and long-range relation, will look after part and immediate interests, has again the overall point of view, can look after overall situation, adapt to development.
Switch cubicle can ensure power equipment and operating personnel's safety.Along with the propelling of global intelligent grid technology, Intelligent transformer station will be development priority from now on, and intelligent switchboard is basis and the hardware carrier of Intelligent transformer station, and existing switch cabinet structure complexity, cost costliness, therefore provide a kind of simple in structure, intelligent switchboard system with low cost is very urgent.
Summary of the invention
The object of the present invention is to provide a kind of a kind of IC coded lock power distribution cabinet simple in structure, with low cost.
The utility model is by the following technical solutions to achieve these goals:
A kind of IC coded lock power distribution cabinet, it is characterized in that, comprise cabinet 1, cabinet door, cabinet 1 is divided into upper strata, middle level and lower floor, lower floor is provided with voltage transformer 2, current transformer 3, heater 10, earth bus 11 and transformer 14, on middle level, be provided with relay group 17, lightning arrester 4, middle level is provided with fuse mounting rail 12, fuse 9 is installed on fuse mounting rail 12, isolating switch 8 is installed on upper strata, on upper strata, be provided with wall bushing 6, main bus bar and branch bus 7 are introduced by wall bushing 6, main bus bar is connected with upper isolating switch 8 with branch bus 7, upper isolating switch 8 connects relay group 17, relay group 17 connects lightning arrester 4 and fuse 9, fuse 9 connects voltage transformer 2, current transformer 3 and transformer 14, cabinet 1 top is provided with suspension ring 5, on cabinet door, be provided with IC gate inhibition unit, IC gate inhibition unit comprises single-chip microcomputer, single-chip microcomputer is connected with electromagnetic lock control circuit 2-1, indicator light circuit 2-2, card reading unit 2-3, display circuit 2-4, buzz circuit 2-5 and keyboard circuit 2-6, described electromagnetic lock control circuit comprises amplifying unit and the relay of two triode compositions, relay often start the switch of closed contact as electromagnetic lock 2-1-1.
In technique scheme, described power distribution cabinet also disposes intelligent monitoring unit, comprise the analog signal isolation that is linked in sequence and translation circuit, low-pass filtering modulate circuit, A/D converter, processor, I/O output interface, photoisolator circuit, switching value output circuit, described voltage transformer 2 summation current transformer 3 isolation of connecting analog signal and translation circuits, switching value output circuit connects relay group 17.
In technique scheme, described analog signal isolation comprises operational amplifier with translation circuit, capacitor C, resistance R 2, slip feedback resistance R1, be connected between the out-phase input and output of operational amplifier after capacitor C is in parallel with resistance R 2 after connecting with slip feedback resistance R1.
Because the utility model has adopted technique scheme, so possess following beneficial effect:
One, because the voltage and current in low voltage electric network, after through an instrument transformer conversion, that effective value is the analog quantity of 5A, and A/D converter can only be accepted the voltage signal that amplitude changes among a small circle, in addition, signal is in wire transmission process, can be subject to the interference of operational environment, for voltage signal, after transmission, amplitude also can decay.Therefore, in electrical quantity transmission channel, the utility model signalization modulate circuit, makes signal after filtering interfering, can become the signal that amplitude size is suitable and send into A/D transducer, so that MCU carrys out sampling processing.
Two, the utility model compact conformation, simple, with low cost.
Three, the utility model comprises intelligent card reader and electronic lock, card reader bindings personnel's information, and be equipped with password, operating personnel swipe the card (also can input numbering) and input after password, can beat rack, and the operation between opening and closing rack is all done to exquisite detail.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model;
Fig. 2 is analog signal isolation of the present utility model and translation circuit schematic diagram;
Fig. 3 is IC gate inhibition of the present utility model unit;
In figure, 1 is that support, 2 is that voltage transformer, 3 is that current transformer, 4 is that lightning arrester, 5 is that suspension ring, 6 are that wall bushing, 7 is that main bus bar and branch bus, 8 are that upper isolation pass, 9 is that fuse, 10 is that heater, 11 is that earth bus, 12 fuse mounting rails, 13 are that mounting rail, 14 is that transformer, 15 is that upper isolating switch mounting rail, 16 crossbeams, 17 are that relay group, 18 is instrument transformer.
In figure, 2-1 is electromagnetic lock control circuit, and 2-1-1 is electromagnetic lock, and 2-2 is indicator light circuit, and 2-3 is card reading unit, 2-4 display circuit, and 2-5 is buzz circuit, 2-6 is keyboard circuit.
Embodiment
The utility model provides a kind of power distribution cabinet, change power distribution cabinet and comprise support, in support, be divided into upper strata by two crossbeams 16, middle level and lower floor, be provided with fuse mounting rail 12 on 16, two crossbeams, fuse mounting rail 12 connects by connecting bent plate, fuse 9 is installed on fuse mounting rail 12, the floor installation of fuse 9 is on fuse mounting rail 12, on the crossbeam 16 on upper strata, isolating switch mounting rail 15 is installed, upper isolating switch 8 is arranged on isolating switch mounting rail 15, on the crossbeam 16 of lower floor and middle interlayer, lightning arrester 4 is installed, middle level is also provided with relay group 17, bottom is provided with earth bus 11, transformer 14, voltage transformer 2, current transformer 3, heater 10, transformer 14, voltage transformer 2 summation current transformers 3 are all connected with fuse 9, fuse 9 is connected with relay group 17, relay group 17 connects main bus bar and branch bus 7, main bus bar and branch bus 7 are drawn by wall bushing 6, in casing, also dispose intelligent monitoring unit, intelligent monitoring unit comprises the analog signal isolation and the translation circuit that are linked in sequence, low-pass filtering modulate circuit, A/D converter, processor, I/O output interface, photoisolator circuit, switching value output circuit, described voltage transformer 2 summation current transformer 3 isolation of connecting analog signal and translation circuits, switching value output circuit connects relay group 17.Described analog signal isolation comprises operational amplifier with translation circuit, capacitor C, and resistance R 2, slip feedback resistance R1, be connected between the out-phase input and output of operational amplifier after capacitor C is in parallel with resistance R 2 after connecting with slip feedback resistance R1.
On cabinet door, be provided with IC gate inhibition unit, IC gate inhibition unit comprises single-chip microcomputer, single-chip microcomputer is connected with electromagnetic lock control circuit 2-1, indicator light circuit 2-2, card reading unit 2-3, display circuit 2-4, buzz circuit 2-5 and keyboard circuit 2-6, described electromagnetic lock control circuit comprises amplifying unit and the relay of two triodes composition, relay often start the switch of closed contact as electromagnetic lock 2-1-1.
Described electromagnetic lock control circuit 2-1 is connected with the P2.3 pin of single-chip microcomputer, electromagnetic lock control circuit 2-1 comprises 2 triode Q2 and Q3, biasing resistor R3, relay K A and electromagnetic lock 2-1-1, two triodes and resistance R 3 form amplifying circuit, triode connects relay K A, for relay K, A provides control signal, and relay K A often starts the switch of closed contact as electromagnetic lock 2-1-1.Q2 conducting in the time of P2.3 mouth output high level, Q3 cut-off, now the control coil of relay is open circuit, relay is failure to actuate.Door lock is connected to relay normal-closed end, door lock closure, and door is in locking state.Q2 cut-off in the time of P2.3 mouth output low level, Q3 conducting, the now control coil closure of relay, the actuating of relay.Relay normal-closed end disconnects, door-lock opening, and door is in open mode.
Indicator light circuit 2-2, in the time of P2.5 mouth output high level, triode Q1 cut-off, light-emitting diode extinguishes.In the time of P2.5 mouth output low level, triode Q1 conducting, light-emitting diode is lighted.
Card reading unit 2-3, adopts ID radio-frequency card card reader.EM9913BF 125KHz induction type Card Reader module is the Card Reader module designing for the contactless RFID wafer of 125KHz.It is connected P3.0 pin and connects with single-chip microcomputer.
Display circuit 2-4, adopts LCD1602, and its D0-D7 pin connects the P0.0-P0.7 pin of single-chip microcomputer.
Buzz circuit 2-5, in the time of P2.4 pin output high level, triode Q4 conducting, triode Q5 cut-off, buzzer loop open circuit, buzzer does not ring.In the time of P2.4 output high level, triode Q4 cut-off, triode Q5 conducting, buzzer circuit closed, buzzer sends sound.

Claims (3)

1. an IC coded lock power distribution cabinet, it is characterized in that, comprise cabinet (1), cabinet door, cabinet (1) is divided into upper strata, middle level and lower floor, lower floor is provided with voltage transformer (2), current transformer (3), heater (10), earth bus (11) and transformer (14), on middle level, be provided with relay group (17), lightning arrester (4), middle level is provided with fuse mounting rail (12), fuse (9) is installed on fuse mounting rail (12), isolating switch (8) is installed on upper strata, on upper strata, be provided with wall bushing (6), main bus bar and branch bus (7) are introduced by wall bushing (6), main bus bar is connected with upper isolating switch (8) with branch bus (7), upper isolating switch (8) connects relay group (17), relay group (17) connects lightning arrester (4) and fuse (9), fuse (9) connects voltage transformer (2), current transformer (3) and transformer (14), cabinet (1) top is provided with suspension ring (5), on cabinet door, be provided with IC gate inhibition unit, IC gate inhibition unit comprises single-chip microcomputer, single-chip microcomputer is connected with electromagnetic lock control circuit (2-1), indicator light circuit (2-2), card reading unit (2-3), display circuit (2-4), buzz circuit (2-5) and keyboard circuit (2-6), described electromagnetic lock control circuit comprises amplifying unit and the relay of two triode compositions, relay often start the switch of closed contact as electromagnetic lock (2-1-1).
2. a kind of IC coded lock power distribution cabinet according to claim 1, it is characterized in that, described power distribution cabinet also disposes intelligent monitoring unit, comprise the analog signal isolation that is linked in sequence and translation circuit, low-pass filtering modulate circuit, A/D converter, processor, I/O output interface, photoisolator circuit, switching value output circuit, the isolation of described voltage transformer (2) summation current transformer (3) connecting analog signal and translation circuit, switching value output circuit connects relay group (17).
3. a kind of IC coded lock power distribution cabinet according to claim 2, it is characterized in that, described analog signal isolation comprises operational amplifier with translation circuit, capacitor C, resistance R 2, slip feedback resistance R1, be connected between the out-phase input and output of operational amplifier after capacitor C is in parallel with resistance R 2 after connecting with slip feedback resistance R1.
CN201420052654.4U 2014-01-27 2014-01-27 IC coded lock power distribution cabinet Expired - Fee Related CN203734169U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420052654.4U CN203734169U (en) 2014-01-27 2014-01-27 IC coded lock power distribution cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420052654.4U CN203734169U (en) 2014-01-27 2014-01-27 IC coded lock power distribution cabinet

Publications (1)

Publication Number Publication Date
CN203734169U true CN203734169U (en) 2014-07-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420052654.4U Expired - Fee Related CN203734169U (en) 2014-01-27 2014-01-27 IC coded lock power distribution cabinet

Country Status (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107394607A (en) * 2017-08-16 2017-11-24 安徽长龙电气集团有限公司 One kind has remote monitoring function high voltage power distributing cabinet
CN107425427A (en) * 2017-08-16 2017-12-01 安徽长龙电气集团有限公司 A kind of water proof type power distribution cabinet
CN107565397A (en) * 2017-08-16 2018-01-09 安徽长龙电气集团有限公司 A kind of electrostatic proof safety type low-voltage distribution cabinet
CN109066361A (en) * 2018-09-13 2018-12-21 国网黑龙江省电力有限公司七台河供电公司 It is capable of the power distribution cabinet of self-shield

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107394607A (en) * 2017-08-16 2017-11-24 安徽长龙电气集团有限公司 One kind has remote monitoring function high voltage power distributing cabinet
CN107425427A (en) * 2017-08-16 2017-12-01 安徽长龙电气集团有限公司 A kind of water proof type power distribution cabinet
CN107565397A (en) * 2017-08-16 2018-01-09 安徽长龙电气集团有限公司 A kind of electrostatic proof safety type low-voltage distribution cabinet
CN109066361A (en) * 2018-09-13 2018-12-21 国网黑龙江省电力有限公司七台河供电公司 It is capable of the power distribution cabinet of self-shield

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140723

Termination date: 20200127