CN202603018U - LED (light-emitting diode) street lamp control cabinet - Google Patents
LED (light-emitting diode) street lamp control cabinet Download PDFInfo
- Publication number
- CN202603018U CN202603018U CN2012202882277U CN201220288227U CN202603018U CN 202603018 U CN202603018 U CN 202603018U CN 2012202882277 U CN2012202882277 U CN 2012202882277U CN 201220288227 U CN201220288227 U CN 201220288227U CN 202603018 U CN202603018 U CN 202603018U
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- Prior art keywords
- street lamp
- led street
- subsequent use
- rectification unit
- main
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
An LED street lamp control cabinet comprises a CPU (Central Processing Unit), a display unit connected with the CPU and power supply changeover modules with a same number as LED street lamp loops, wherein each power supply changeover module is correspondingly connected with an LED street lamp output loop, and comprises a main contactor, a main rectifying unit and a filter circuit; a three-phase alternating-current power supply is connected with the main rectifying unit through a contact of the main contactor, the main rectifying unit is connected with the corresponding LED street lamp loop through the filter circuit; and a first control end of the CPU is connected with a magnetic coil of the main contactor to selectively perform power-on or power-off operation on a magnetic coil of a first electromagnetic relay. According to the LED street lamp control cabinet, three-phase balance of loads of the three-phase alternating-current power supply is realized, thus being convenient to reduce energy loss of a transformer and being beneficial to energy conservation.
Description
Technical field
The utility model relates to a kind of LED street lamp control cubicle.
Background technology
At present; The light fixture of street lamp adopts the light fixture of high-pressure sodium lamp or other Metal halogen lamps mostly; This type light fixture generally reaches the effect that reduces power energy-saving through step-down and voltage stabilizing, so be used to control the energy-saving equipment of street lamp and the principle that the Energy Saving Control cabinet adopts step-down and voltage stabilizing basically on the market.Yet,,, adopt the principle of lowering and stabilizing blood pressure to realize that energy-conservation actual effect is little because the LED light fixture itself has power saving function for LED (Light Emitting Diode, light-emitting diode) street lamp.Moreover for three-phase alternating-current supply, when threephase load was uneven, the load loss of transformer was equivalent to the load loss sum of three single-phase transformers, is unfavorable for energy-conservation.In addition; The transformer that works under the alternating voltage of three-phase imbalance will produce zero-sequence current; Make the iron core of transformer produce the zero sequence magnetic flux, make the housing of transformer or other hardwares produce magnetic hysteresis and eddy current loss then, not only can waste mass energy; And can make the transformer internal temperature raise, make that easily transformer breaks down.
The utility model content
Deficiency to prior art; The purpose of the utility model is intended to provide a kind of LED street lamp control cubicle; The AC power of its three-phase exports each paths of LEDs street lamp loop to after converting DC power supply to; Make the LED street lamp work in DC power supply, thereby avoid because the uneven caused energy loss of threephase load is more effectively energy-conservation.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of LED street lamp control cubicle; Be used to control some LED street lamp loops; This LED street lamp control cubicle comprises central processing unit, handles continuous display unit and the power transfer module identical with the quantity of LED street lamp loop with central authorities, the corresponding LED street lamp output loop that connects of each power transfer module; Each power transfer module comprises main contactor, main rectification unit and filter circuit; One three-phase alternating-current supply connects main rectification unit through the contact of main contactor; Main rectification unit connects corresponding LED street lamp loop through filter circuit, and the solenoid that first control end of central processing unit connects main contactor gets electric or dead electricity with the solenoid that optionally makes first electromagnetic relay.
Each power transfer module also comprises subsequent use contactor and subsequent use rectification unit; Three-phase alternating-current supply connects subsequent use rectification unit through the contact of subsequent use contactor; Subsequent use rectification unit connects the LED street lamp loop through filter circuit; Second control end of central processing unit connects the solenoid of second electromagnetic relay, and wherein, the solenoid of main contactor and subsequent use contactor is not simultaneously.So, when main rectification unit breaks down, can convert AC power into DC power supply by subsequent use rectification unit.
This LED street lamp control cubicle also comprises master switch, and each power transfer module also comprises a branch switch, and master switch is connected between three-phase alternating-current supply and the power transfer module, and each branch switch is connected between the main contactor of master switch and correspondence.
Main rectification unit and subsequent use rectification unit are the three phase half wave rectification module; Filter circuit comprises filter capacitor and divider resistance; First to the 3rd live wire of three-phase alternating-current supply is connected three pairs of contacts of main contactor successively respectively through master switch and branch switch; Each is to the corresponding input that connects main rectification unit in contact; First to the 3rd live wire of three-phase alternating-current supply also is connected three pairs of contacts of subsequent use contactor successively respectively through master switch and branch switch; Each of subsequent use contactor is to the corresponding input that connects subsequent use rectification unit in contact, and the output of main rectification unit and subsequent use rectification unit is connected a voltage output cathode end, and the zero line of three-phase alternating-current supply is connected voltage output negative pole end through master switch with branch switch; Electric capacity and resistance all are connected between voltage output cathode end and the voltage output negative pole end, and voltage output cathode end is connected the LED street lamp loop with voltage output negative pole end.
This main rectification unit and subsequent use rectification unit are the three phase full wave rectification module; This LED street lamp control cubicle also comprises an insulate step-down transformer; Filter circuit comprises divider resistance and filter capacitor; First to the 3rd live wire of three-phase alternating-current supply is connected three pairs of contacts of main contactor respectively through master switch, insulate step-down transformer and branch switch successively; The corresponding input that connects main rectification unit in main contactor contact, the positive output end of main rectification unit connects a voltage output cathode end, and the negative output terminal of main rectification unit connects a voltage output negative pole end; First to the 3rd live wire of three-phase alternating-current supply also is connected three pairs of contacts of subsequent use contactor successively respectively through master switch, insulate step-down transformer and branch switch; Subsequent use contactor each to the corresponding input that connects subsequent use rectification unit in contact, the negative output terminal of subsequent use rectification unit connects voltage output negative pole end, the positive output end of subsequent use rectification unit connects voltage output cathode end; Electric capacity and resistance all are connected between voltage output cathode end and the voltage output negative pole end, and voltage output cathode end is connected the LED street lamp loop with voltage output negative pole end.
This LED street lamp control cubicle also comprises the astronomical clock module, and this astronomical clock module links to each other with central processing unit.
This master switch and branch switch are air switch.
This LED street lamp control cubicle also comprises the photoinduction unit that links to each other with central processing unit, and this photoinduction unit is a photoelectric sensor.
Central processing unit comprises a RS485 interface, and central processing unit connects remote computer through the MODBUS agreement of this standard with the RS485 interface.
This display unit is a LCD.
Above-mentioned LED street lamp control cubicle is through converting the three-phase alternating-current supply of being imported into DC power supply through power transfer module; Make the LED street lamp work in DC power supply, so, can make the load three-phase equilibrium of three-phase alternating-current supply; Help reducing the load loss of transformer, be beneficial to energy-conservation.
Description of drawings
Fig. 1 is the block diagram of the preferred embodiments of the utility model road lighting lantern control system.
Fig. 2 is the partial circuit figure of first preferred embodiment of road lighting lantern control system shown in Figure 1.
Fig. 3 is the partial circuit figure of second preferred embodiment of road lighting lantern control system shown in Figure 1.
Component symbol
| Three-phase alternating- |
50 | |
60 |
| |
90 | The RS485 |
92 |
| |
10 | The |
20 |
| |
30 | |
45 |
| |
42、41 | |
46 |
| Subsequent |
48 | |
43 |
| |
40 | The output of |
80 |
| Electric capacity | C | The contact | KM1、KM2 |
| Resistance | R | ? | ? |
Embodiment
To combine accompanying drawing and embodiment below, the utility model done further describing:
See also Fig. 1; The utility model relates to a kind of LED street lamp control cubicle; Be used to control some LED street lamp loops 80; Each LED street lamp loop 80 comprises at least one LED street lamp; The preferred embodiments of this LED street lamp control cubicle comprises central processing unit 90, the display unit 10 that links to each other with central processing unit 90, the power transfer module 40 identical with the quantity of LED street lamp loop 80, is connected in the master switch 60 between a three-phase alternating-current supply 50 and the power transfer module 40, the photoinduction unit 20 that links to each other with central processing unit 90 and astronomical clock module 30, each LED street lamp loop 80 corresponding connection power transfer module 40.
In the present embodiment, this display unit 10 is a LCD.
Each power transfer module 40 comprises branch switch 45, main contactor 42 and subsequent use contactor 41, main rectification unit 46, subsequent use rectification unit 48 and filter circuit 43.Three-phase alternating-current supply 50 connects branch switch 45 through master switch 60; Branch switch 45 connects main rectification unit through main contactor 42; Branch switch 45 also connects subsequent use rectification unit 48 through subsequent use contactor 41, and main rectification unit 46 all is connected corresponding LED street lamp output loop 80 through filter circuit 43 with subsequent use rectification unit 48.
The sense terminal D1 of central processing unit 90 is connected in the voltage and current of being exported with detecting three-phase alternating-current supply 50 between master switch 60 and the branch switch 45; The sense terminal D2 of central processing unit 90 is connected between filter circuit 43 and the electricity-saving lamp 80 to detect the voltage and current of the power transfer module 40 LED street lamp loop 80 that offered; The input T1 of central processing unit 90 connects photoinduction unit 20 to receive the light intensity induced signal that photoinduction unit 20 is generated; The input T2 of central processing unit 90 connects astronomical clock module 30 to receive the switch lamp time signal that astronomical clock 30 is generated; The control end C1 of central processing unit 90 connects main contactor 42 and gets electric or dead electricity with the solenoid (figure does not show) that optionally makes main contactor 42; The control end C2 of central processing unit 90 connects subsequent use contactor 41 and gets electric or dead electricity with the solenoid that optionally makes subsequent use contactor 42, and the data output end of central processing unit 90 connects display unit 10 so that institute's current detected voltage data, the light intensity induced signal that is received and the time induced signal that is received are shown in display unit 10.The quantity of the sense terminal D2 of central processing unit 90, control end C1 and C2 can be provided with according to the quantity of power transfer module 40 is corresponding.
In the present embodiment; Central processing unit 90 also comprises RS485 interface 92; This central processing unit 90 is through the MODBUS agreement connection remote computer of RS485 interface 92 usefulness standards, so that remote computer can comprise institute's current detected voltage, light intensity induced signal etc. through each item data that RS485 interface 92 reads central processing unit 90.
See also Fig. 2, in the present embodiment, main rectification unit 46 is half-wave rectification block with subsequent use rectification unit 48, and filter circuit 43 comprises capacitor C 1 and resistance R 1.Live wire L1, L2 and the L3 of three-phase alternating-current supply 50 is connected three couples of contact KM1 of main contactor 42 successively respectively through master switch 60 and branch switch 45; Each is to the corresponding input that connects main rectification unit 46 of contact KM1; Live wire L1, L2 and the L3 of three-phase alternating-current supply 50 also is connected three couples of contact KM2 of subsequent use contactor 41 successively respectively through master switch 60 and branch switch 45; Each is to the corresponding input that connects subsequent use rectification unit 48 of contact KM2; The output of main rectification unit 46 and subsequent use rectification unit 48 is connected voltage output cathode end A through fuse FU; The zero line N of three-phase alternating-current supply 50 is connected voltage output negative pole end B through master switch 60 with branch switch 45, capacitor C 1 and resistance R 1 all are connected between voltage output cathode end A and the voltage output negative pole end B, and voltage output cathode end A is connected LED street lamp loop 80 with voltage output negative pole end B; In the present embodiment, the dc voltage value between voltage output cathode end A and the voltage output negative pole end B is 260 volts.
See also Fig. 3, among other embodiment, main rectification unit 46 is full-wave rectification block with subsequent use rectification unit 48, and this road lighting lantern control system also comprises an insulate step-down transformer 70.Live wire L1, L2 and the L3 of three-phase alternating-current supply 50 is connected three couples of contact KM1 of main contactor 42 successively respectively through master switch 60, insulate step-down transformer 70 and branch switch 45; Each is to the corresponding input that connects main rectification unit 46 of contact KM1; The positive output end of main rectification unit 46 connects voltage output cathode end A; The negative output terminal of main rectification unit 46 connects voltage output negative pole end B; Live wire L1, L2 and the L3 of three-phase alternating-current supply 50 also is connected three couples of contact KM2 of subsequent use contactor 41 successively respectively through master switch 60, insulate step-down transformer 70 and branch switch 45; Each is to the corresponding input that connects subsequent use rectification unit 41 of contact KM2, and the negative output terminal of subsequent use rectification unit 41 connects voltage output negative pole end B, and the positive output end of subsequent use rectification unit 41 connects voltage output cathode end A; Capacitor C 1 and resistance R 1 all are connected between voltage output cathode end A and the voltage output negative pole end B, and voltage output cathode end A is connected LED street lamp loop 80 with voltage output negative pole end B.In the present embodiment, the dc voltage value between voltage output cathode end A and the voltage output negative pole end B is 260 volts.
The operation principle of the preferred embodiments of the utility model is following:
The staff is provided with the relevant parameter and the light intensity threshold value of astronomical clock module 30 in advance through display unit 10.
The surrounding enviroment light intensity of photoinduction unit 20 detecting real-time LED street lamp loops 80; Astronomical clock 30 is provided with according to preset parameter and calculates between sunset at sunrise; When astronomical clock 30 sends surrounding enviroment light intensity that lighting time signal (promptly show indication sunset time) or photoinduction unit 20 detect LED street lamp loop 80 and is lower than preset light intensity threshold value; Central processing unit 90 gets the solenoid of main contactor 42 according to the light intensity induced signal or the lighting time signal of correspondence; Then make that the contact KM1 of main contactor 42 is closed; Thereby the alternating current that makes three-phase alternating-current supply 50 exported is converted into DC power supply through main rectification unit 46, and this DC power supply gives the LED street lamp loop 80 power supplies after eliminating ripple through filter circuit 43, so that the some street lamps in the LED street lamp loop 80 are lighted.
LED street lamp loop 80 duration of works; The input voltage and input current of central processing unit 90 detecting real-time power transfer module 40 and output voltage electric current; To judge whether operate as normal of main rectification unit; If job failure appears in main rectification unit, even the solenoid dead electricity of central processing unit 90 main contactors 42 makes the solenoid of subsequent use contactor 41 get electric so that contact KM2 is closed so that contact KM1 breaks off simultaneously; Then the alternating current that makes three-phase alternating-current supply 50 exported is converted into DC power supply through subsequent use rectification unit 48, gives LED street lamp loop 80 with power supply.
When astronomical clock 30 sends surrounding enviroment light intensity that the time signal of turning off the light (between promptly showing at sunrise) or photoinduction unit 20 detect electricity-saving lamp 80 and is higher than preset light intensity threshold value; Central processing unit makes the solenoid dead electricity of main contactor 42 according to the light intensity induced signal of correspondence or the time signal of turning off the light; Then make the contact KM1 of main contactor 42 break off; Thereby do not provide power supply to LED street lamp loop 80, to close street lamp.
Above-mentioned road lighting lantern control system is through converting three-phase alternating-current supply into DC power supply through power transfer module; Make the LED street lamp loop work under the direct voltage, so, can make the load three-phase equilibrium of three-phase alternating-current supply; Help reducing the energy loss of transformer, be beneficial to energy-conservation.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of the utility model claim all according to the technical scheme and the design of above description.
Claims (10)
1. LED street lamp control cubicle; Be used to control some LED street lamp loops; It is characterized in that: this LED street lamp control cubicle comprises central processing unit, handles continuous display unit and the power transfer module identical with the quantity of LED street lamp loop with central authorities, the corresponding LED street lamp output loop that connects of each power transfer module; Each power transfer module comprises main contactor, main rectification unit and filter circuit; One three-phase alternating-current supply connects main rectification unit through the contact of main contactor; Main rectification unit connects corresponding LED street lamp loop through filter circuit, and the solenoid that first control end of central processing unit connects main contactor gets electric or dead electricity with the solenoid that optionally makes first electromagnetic relay.
2. LED street lamp control cubicle as claimed in claim 1; It is characterized in that: each power transfer module also comprises subsequent use contactor and subsequent use rectification unit; Three-phase alternating-current supply connects subsequent use rectification unit through the contact of subsequent use contactor, and subsequent use rectification unit connects the LED street lamp loop through filter circuit, and second control end of central processing unit connects the solenoid of second electromagnetic relay; Wherein, the solenoid of main contactor and subsequent use contactor is not simultaneously.
3. LED street lamp control cubicle as claimed in claim 2; It is characterized in that: this LED street lamp control cubicle also comprises master switch; Each power transfer module also comprises a branch switch; Master switch is connected between three-phase alternating-current supply and the power transfer module, and each branch switch is connected between the main contactor of master switch and correspondence.
4. LED street lamp control cubicle as claimed in claim 3; It is characterized in that: main rectification unit and subsequent use rectification unit are the three phase half wave rectification module; Filter circuit comprises filter capacitor and divider resistance; First to the 3rd live wire of three-phase alternating-current supply is connected three pairs of contacts of main contactor successively respectively through master switch and branch switch; Each is to the corresponding input that connects main rectification unit in contact, and first to the 3rd live wire of three-phase alternating-current supply also is connected three pairs of contacts of subsequent use contactor successively respectively through master switch and branch switch, and each of subsequent use contactor is to the corresponding input that connects subsequent use rectification unit in contact; The output of main rectification unit and subsequent use rectification unit is connected a voltage output cathode end; The zero line of three-phase alternating-current supply is connected voltage output negative pole end through master switch with branch switch, electric capacity and resistance all are connected between voltage output cathode end and the voltage output negative pole end, and voltage output cathode end is connected the LED street lamp loop with voltage output negative pole end.
5. LED street lamp control cubicle as claimed in claim 3; It is characterized in that: this main rectification unit and subsequent use rectification unit are the three phase full wave rectification module; This LED street lamp control cubicle also comprises an insulate step-down transformer; Filter circuit comprises divider resistance and filter capacitor; First to the 3rd live wire of three-phase alternating-current supply is connected three pairs of contacts of main contactor respectively through master switch, insulate step-down transformer and branch switch successively; The corresponding input that connects main rectification unit in main contactor contact, the positive output end of main rectification unit connects a voltage output cathode end, and the negative output terminal of main rectification unit connects a voltage output negative pole end; First to the 3rd live wire of three-phase alternating-current supply also is connected three pairs of contacts of subsequent use contactor successively respectively through master switch, insulate step-down transformer and branch switch; Subsequent use contactor each to the corresponding input that connects subsequent use rectification unit in contact, the negative output terminal of subsequent use rectification unit connects voltage output negative pole end, the positive output end of subsequent use rectification unit connects voltage output cathode end; Electric capacity and resistance all are connected between voltage output cathode end and the voltage output negative pole end, and voltage output cathode end is connected the LED street lamp loop with voltage output negative pole end.
6. like each described LED street lamp control cubicle in the claim 1 to 5, it is characterized in that: this LED street lamp control cubicle also comprises the astronomical clock module, and this astronomical clock module links to each other with central processing unit.
7. like each described LED street lamp control cubicle in the claim 3 to 5, it is characterized in that: this master switch and branch switch are air switch.
8. like each described LED street lamp control cubicle in the claim 1 to 5, it is characterized in that: this LED street lamp control cubicle also comprises the photoinduction unit that links to each other with central processing unit, and this photoinduction unit is a photoelectric sensor.
9. like each described LED street lamp control cubicle in the claim 1 to 5, it is characterized in that: central processing unit comprises a RS485 interface, and central processing unit connects remote computer through the MODBUS agreement of this standard with the RS485 interface.
10. LED street lamp control cubicle as claimed in claim 1 is characterized in that: this display unit is a LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202882277U CN202603018U (en) | 2012-06-18 | 2012-06-18 | LED (light-emitting diode) street lamp control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202882277U CN202603018U (en) | 2012-06-18 | 2012-06-18 | LED (light-emitting diode) street lamp control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202603018U true CN202603018U (en) | 2012-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202882277U Expired - Fee Related CN202603018U (en) | 2012-06-18 | 2012-06-18 | LED (light-emitting diode) street lamp control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202603018U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088223A1 (en) * | 2015-11-23 | 2017-06-01 | 上海泓语电气技术有限公司 | Led lighting driver power supply system for high-voltage alternating current system |
| CN108133354A (en) * | 2017-12-07 | 2018-06-08 | 北京小米移动软件有限公司 | Information prompting method and device |
| CN112584578A (en) * | 2020-02-24 | 2021-03-30 | 广东顺德长和电气有限公司 | Suspension direct current powered LED street lamp system |
-
2012
- 2012-06-18 CN CN2012202882277U patent/CN202603018U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088223A1 (en) * | 2015-11-23 | 2017-06-01 | 上海泓语电气技术有限公司 | Led lighting driver power supply system for high-voltage alternating current system |
| CN108133354A (en) * | 2017-12-07 | 2018-06-08 | 北京小米移动软件有限公司 | Information prompting method and device |
| CN112584578A (en) * | 2020-02-24 | 2021-03-30 | 广东顺德长和电气有限公司 | Suspension direct current powered LED street lamp system |
| CN112584578B (en) * | 2020-02-24 | 2022-10-14 | 广东顺德长和电气有限公司 | Suspension direct current powered LED street lamp system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20140618 |
|
| EXPY | Termination of patent right or utility model |