CN201830509U - Battery-powered lighting controller with balance of input and output - Google Patents
Battery-powered lighting controller with balance of input and output Download PDFInfo
- Publication number
- CN201830509U CN201830509U CN201020517109XU CN201020517109U CN201830509U CN 201830509 U CN201830509 U CN 201830509U CN 201020517109X U CN201020517109X U CN 201020517109XU CN 201020517109 U CN201020517109 U CN 201020517109U CN 201830509 U CN201830509 U CN 201830509U
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- storage battery
- led light
- light fixture
- lighting controller
- load current
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides a battery-powered lighting controller with balance of input and output, which belongs to the technical field of a lighting controller for a street lamp, and solves the problem that the existing battery-powered street lamp system can not light up for a long time each day. The battery-powered lighting controller comprises an LED (light-emitting diode) lamp and a battery, an anode of the LED lamp is connected with an anode of the battery, a cathode of the LED lamp is connected with a control circuit, and the control circuit is connected with a cathode of the battery, thus a power supply circuit for the LED lamp is formed. The controller also comprises a voltage detection circuit, a charging current detection circuit and an ECU (electronic control unit), the ECU is used for reading a charging current so as to calculate a current required in a day, and when the voltage of the battery is lower than a set voltage of the ECU during detection, a load current of the LED lamp is adjusted via the control circuit to be equal to the required current. The battery-powered lighting controller adopts the control mode with the balance of input and output, so that the street lamp system with the controller can light up for a long time even within multiple cloudy and rainy days.
Description
Technical field
The utility model belongs to the wind and light complementary road lamp technical field, relates to a kind of storage battery power supply lighting controller, particularly a kind of controller that carries out powered lighting according to the electric energy of accumulators store in the mode of living within one's income.
Background technology
Public lighting systems such as street lamp, Landscape Lamp, Lawn lamp are the indispensable communal facility in area, cities and towns, and are indispensable.Traditional street lamp, Landscape Lamp etc. adopt mains-supplied, except light fixture, lamp stand, also need buried pipeline, cabling, and power supply control cubicle or the like is installed, and workload is very big, and cost is very high, and need to consume a large amount of electric energy throughout the year.Development along with technology, the cost price of wind energy, solar energy and wind and light complementary road lamp system has equaled even a little less than the road lamp system of traditional mains-supplied, add that it need not the electricity charge, safeguards advantages such as simple, that operating cost is low, becomes the strong competitor of conventional road lamp.
Wind energy, solar energy and wind and light complementary road lamp system to charge in batteries, utilize the electric energy driving LED lamp lighting of battery stores with solar cell, wind-driven generator again when night.Different with reliable and stable traditional mains-supplied road lamp system, the wind-driven generator in wind energy, solar energy and the wind and light complementary road lamp system and the operating state of solar-energy photo-voltaic cell all are unsettled.Wind speed is fluctuated, and sunlight is dynamic, and the electric power that sends is suddenly big or suddenly small, even might meet with continuous tens days overcast and rainy calm weather, and therefore, the storage battery in the system might can not get enough chargings.And existing storage battery power supply lighting controller all is to adopt direct switch output, the discharge capacity of storage battery is not controlled, when the charge in batteries quantity not sufficient, the electric weight of accumulators store exhausts and off switch at short notice, can't guarantee LED light fixture every day can both be for a long time light yellows all.
In wind energy, solar energy and wind and light complementary road lamp system, solar cell also can charge a battery overcast and rainy, 5～10% of charging current that but this electric current is minimum when only being fine, after turning on light evening, the electric energy that is filled is depleted soon, every day can only be bright 1,2 hour, even the shorter time, can not be all bright whole night.And if night, street lamp did not work, will stay hidden danger to road safety and social security.
In order to guarantee that illumination is all arranged every day, generally all adopt the power that increases blower fan and solar cell, be equipped with measures such as jumbo storage battery, even have to keep the mains-supplied system, in order to the use of overcast and rainy calm weather continuously.This makes the cost of whole system increase greatly, and economy descends greatly, has run counter to and has saved energy and reduce the cost, the original intention of environmental protection.
The utility model content
The utility model is at above-mentioned problem, a kind of storage battery power supply lighting controller of living within one's income is provided, cause short problem of lighting time because of charge in batteries is insufficient to solve existing wind energy, solar energy and wind and light complementary road lamp system, by the mode of living within one's income, rationally arrange electric current output according to the rechargeable electrical energy that obtains every day, be implemented in and realize under the situation about reducing cost that the LED street lamp all keeps the purpose of long-time bright lamp every day.
The utility model is realized by following technical proposal: a kind of storage battery power supply lighting controller of living within one's income, comprise LED light fixture and storage battery, described LED light fixture anode connects battery positive voltage, it is characterized in that, LED light fixture negative electrode is connected with the control circuit that is used to regulate LED light fixture load current, this control circuit and described battery terminal negative are connected to form the current supply circuit to the LED light fixture, and this storage battery power supply lighting controller also comprises:
Voltage detecting circuit is used to detect battery tension;
The charging current testing circuit is used to detect the charging current of storage battery;
Load current detection circuit is used to detect the load current of LED light fixture;
Control unit ECU is used to read the electric current allowable that charging current is calculated the same day, and when detecting battery tension and be lower than the setting voltage of control unit ECU, the load current of regulating the LED light fixture by control circuit equals electric current allowable.
Operation principle of the present utility model is as follows: if when the charge volume on the same day is sufficient, the voltage of voltage detecting circuit collection can be higher than the setting voltage of control unit ECU, and the LED light fixture is according to normal load current work; When if the charge volume on the same day is inadequate, the voltage of voltage detecting circuit collection can be lower than setting voltage, the electric current that control unit ECU reads the collection of charging current testing circuit is used to calculate the electric current allowable on the same day, electric current allowable for total charge volume that the same day, storage battery obtained divided by total time when the daybreak lamp, regulate LED light fixture load current by control circuit and equal electric current allowable, the discharge of storage battery is controlled.So just can guarantee that it is bright remaining the LED light fixture in the time of turning on light, realize the power supply balance of storage battery power supply illuminator, thereby reached the purpose of living within one's income.Owing to only use same day electric energy stored to power, do not need to store standby electricity with jumbo storage battery, do not need to increase the power of blower fan and solar cell yet, reduced cost.
As optimization, in the above-mentioned storage battery power supply lighting controller of living within one's income, described control unit ECU is provided with an A/D conversion port with the software set load current, be used for when detecting battery tension and reach setting voltage, the load current of regulating the LED light fixture by control circuit equals the load current that the A/D conversion port is set.
In the above-mentioned storage battery power supply lighting controller of living within one's income, described control circuit adopts the PWM control mode, comprise the MOS switching tube, on control unit ECU, be provided with PWM and drive port, the G utmost point of MOS switching tube drives port with PWM and is connected, the D utmost point is connected with the negative pole of LED light fixture, and the S utmost point is connected with load current detection circuit.Control unit ECU sends the PWM ripple to the MOS switching tube, and by the duty ratio of adjustment PWM ripple, thereby the load current of adjusting LED light fixture is realized constant current output.
In the above-mentioned storage battery power supply lighting controller of living within one's income, described charging current testing circuit comprises amplifier A1 and sampling resistor R1, sampling resistor R1 one end ground connection and be connected with the negative pole of storage battery, the other end is sampled point SP1, the end of amplifier A1 is connected with sampled point SP1, and the other end is connected with control unit ECU.
In the above-mentioned storage battery power supply lighting controller of living within one's income, described load current detection circuit comprises amplifier A2 and sampling resistor R2, sampling resistor R2 one end ground connection, the other end is sampled point SP2, be connected with the S utmost point of MOS switching tube, the end of amplifier A2 is connected with sampled point SP2, and the other end is connected with control unit ECU.
In the above-mentioned storage battery power supply lighting controller of living within one's income, described voltage detecting circuit comprises divider resistance R3 and divider resistance R4, divider resistance R3 and divider resistance R4 are connected into branch road, one end of this branch road is connected in the positive pole of storage battery, the other end ground connection of branch road is provided with the sampled point SP3 that is connected with control unit ECU between divider resistance R3 and divider resistance R4.
In the above-mentioned storage battery power supply lighting controller of living within one's income, the positive pole of described storage battery is connected with the negative pole of unilateral diode D1, the positive pole of unilateral diode D1 is connected with charging anode S+, the negative pole of storage battery and ground connection, and charging negative terminal S-is arranged on the sampled point SP1.
Compared with prior art, the utlity model has following advantage:
1, adopted the control mode of " living within one's income ", be equipped with corresponding circuit and software, no matter the road lamp system that make to adopt this controller can realize how long overcast and rainy calm, and street lamp every day is light yellow for a long time.
2, the control method that has adopted the utility model to live within one's income is only used the charge capacity on the same day, and therefore the storage battery with low capacity replaces original large-capacity battery, significantly reduces the use capacity of storage battery, only is 1/4～1/3 of legacy system; In like manner, replace original big-power solar battery, reduced the use power of solar cell, only be 2/3～3/4 of existing legacy system, therefore greatly reduce the cost of whole road lamp system with the little solar cell of power.
3, the output of this controller is a constant load current, is equivalent to the constant-current supply of LED, therefore can save the constant-current supply of LED light fixture adapted, thereby further save cost.
4, because the control method that the utility model is lived within one's income, only use the charge capacity on the same day, the assurance storage battery is in all the time and discharges and recharges in the working range normally, stopped to take place the possibility of over-discharge can, therefore the battery-operated life-span is prolonged greatly, has reduced the operation expense of whole illuminator.
Description of drawings
Fig. 1 is a circuit structure diagram of the present utility model.
Among the figure, 1, storage battery; 2, LED light fixture; 3, control unit ECU; 4, voltage detecting circuit; 5, charging current testing circuit; 6, load current detection circuit; 7, control circuit; 8, A/D conversion port; 9, MOS switching tube; 10, PWM drives port.
Embodiment
Be specific embodiment of the utility model below, and in conjunction with the accompanying drawings the technical solution of the utility model further specified, but be not limited to these embodiment.
As shown in Figure 1, the storage battery power supply lighting controller of originally living within one's income comprises storage battery 1, LED light fixture 2, control unit ECU 3, voltage detecting circuit 4, charging current testing circuit 5, load current detection circuit 6, control circuit 7.
Specifically, the positive pole of storage battery 1 is connected with the negative pole of unilateral diode D1, and the positive pole of unilateral diode D1 is connected with the anodal S+ of charging, and the effect of unilateral diode D1 is an anti-backflow when input voltage is lower than storage battery 1 voltage.The negative pole of storage battery 1 and ground connection, charging negative pole S-is arranged on sampled point SP1.
The anode of LED light fixture 2 connects the positive pole of storage battery 1, the negative electrode of LED light fixture 2 is connected with the control circuit 7 that is used to regulate LED light fixture 2 load currents, the negative pole of control circuit 7 and storage battery 1 is connected to form the current supply circuit to LED light fixture 2, is connected with voltage detecting circuit 4 that detects storage battery 1 voltage and the charging current testing circuit 5 that detects storage battery 1 charging current It between control unit ECU 3 and storage battery 1 respectively.Between control unit ECU 3 and LED light fixture 2, be connected with the load current detection circuit 6 and the regulating load electric current that detect LED light fixture 2 electric currents respectively and reach control of current I circuit 7 allowable.
Voltage detecting circuit 4 comprises divider resistance R3 and divider resistance R4, divider resistance R3 and divider resistance R4 are connected into branch road, one end of this branch road and the positive pole that is connected in storage battery 1, the other end ground connection of branch road is provided with the sampled point SP3 that is connected with control unit ECU 3 between divider resistance R3 and divider resistance R4.Control unit ECU reads the voltage of storage battery by the dividing potential drop of divider resistance R3, R4.
Charging current testing circuit 5 comprises amplifier A1 and sampling resistor R1, sampling resistor R1 one end ground connection, and the other end is sampled point SP1, and the end of amplifier A1 is connected with sampled point SP1, and the other end is connected with control unit ECU 3.Charging current It produces pressure drop on sampling resistor R1, this pressure drop signal is Input Control Element ECU 3 after amplifier A1 amplifies, and reads charging current.
The electric current of gathering according to charging current testing circuit 5 in control unit ECU 3 calculates electric current I allowable on the same day, and it is as follows that control unit ECU 3 calculates electric current allowable:
Control unit ECU is the departmental summary charging current with the blanking time of turning on light for twice, and the charge capacity on the same day of storage battery 1 is:
N＝K∑Itdt
K is the charge in batteries efficiency factor in the formula
It is instant charging current
Dt is the differential of time.
After storage battery 1 voltage was lower than certain value, when needs were turned on light, control unit ECU 3 was according to the charge capacity N on the same day, calculated same day LED light fixture 2 electric current I allowable to be:
I＝N/T
N is the charge capacity on the same day in the formula
The time that T turns on light for expectation (hour).
Control circuit 7 adopts the PWM control mode, comprise MOS switching tube 9, on control unit ECU 3, be provided with PWM and drive port 10 that the G utmost point of MOS switching tube 9 drives port 10 with PWM and is connected, the D utmost point is connected with the negative pole of LED light fixture 2, and the S utmost point is connected with load current detection circuit 6.Control unit ECU 3 sends the PWM ripple to MOS switching tube 9, adjusts the duty ratio of PWM ripple, thereby regulates the load current of LED light fixture 2, realizes constant current output.When the voltage that detects storage battery 1 at control unit ECU 3 was lower than the voltage of setting, the load current that control circuit 7 is regulated the LED light fixtures equaled electric current I allowable.Control unit ECU as controlled target, changes the duty ratio of PWM ripple according to electric current allowable and load current with electric current allowable, and the input current of regulating the LED light fixture equals the electric current I allowable on the same day.
Control unit ECU 3 is provided with an A/D conversion port 8 with the software set load current, be used for when the voltage that voltage detecting circuit 4 detects storage battery 1 reaches the voltage of setting the load current that the load current of regulating LED light fixtures 2 by control circuit 7 equals to set.According to the duty ratio that the load current of setting and load current change the PWM ripple, regulate the load current that the input current of LED light fixture 2 equals to set.
Load current detection circuit 6 comprises amplifier A2 and sampling resistor R2, sampling resistor R2 one end ground connection, and the other end is sampled point SP2, is connected with the S utmost point of MOS switching tube 9, and the end of amplifier A2 is connected with sampled point SP2, and the other end is connected with control unit ECU 3.
Operation principle of the present utility model is as follows: if when the charge volume on the same day is sufficient, the electric current of input LED light fixture 2 is according to the work of normal current, be the voltage that voltage that voltage detecting circuit 4 detects reaches setting, the load current that control circuit 7 detects according to the load current of software set and load current detection circuit 6 is adjusted the duty ratio of PWM ripple, thereby regulate the input current of LED light fixture 2, realize constant current output; When if the charge volume on the same day is inadequate, the voltage that the utility model detects storage battery 1 by voltage detecting circuit 4 is lower than the voltage of setting, regulate LED light fixture 2 electric currents by control circuit 7 again and reach electric current I allowable, so just can guarantee that it is bright keeping LED light fixture 2 all the time in the time of turning on light, like this, LED light fixture 2 employed electric energy all are the rechargeable electrical energies on the same day, therefore adopt than the little storage battery of prior art capacity with than the little solar cell of original technology power, reduced cost.
Claims (7)
1. storage battery power supply lighting controller of living within one's income, comprise LED light fixture (2) and storage battery (1), described LED light fixture (2) anode connects storage battery (1) positive pole, it is characterized in that, LED light fixture (2) negative electrode is connected with the control circuit (7) that is used to regulate LED light fixture (2) load current, this control circuit (7) and described storage battery (1) negative pole are connected to form the current supply circuit to LED light fixture (2), and this storage battery (1) powered lighting controller also comprises:
Voltage detecting circuit (4) is used to detect storage battery (1) voltage;
Charging current testing circuit (5) is used to detect the charging current of storage battery (1);
Load current detection circuit (6) is used to detect the load current of LED light fixture (2);
Control unit ECU (3), be used to read the electric current allowable that charging current is calculated the same day, and when detecting storage battery (1) voltage and be lower than the setting voltage of control unit ECU (3), the load current of regulating LED light fixture (2) by control circuit (7) equals electric current allowable.
2. in the storage battery power supply lighting controller of living within one's income according to claim 1, it is characterized in that, described control unit ECU (3) is provided with an A/D conversion port (8) with the software set load current, be used for detecting storage battery (1) when voltage reaches setting voltage, the load current of regulating LED light fixture (2) by control circuit (7) equals the load current that A/D conversion port (8) is set.
3. in the storage battery power supply lighting controller of living within one's income according to claim 1 and 2, it is characterized in that, described control circuit (7) adopts the PWM control mode, comprise MOS switching tube (9), on control unit ECU (3), be provided with PWM and drive port (10), the G utmost point of MOS switching tube (9) drives port (10) with PWM and is connected, and the D utmost point is connected with the negative pole of LED light fixture (2), and the S utmost point is connected with load current detection circuit (6).
4. in the storage battery power supply lighting controller of living within one's income according to claim 3, it is characterized in that, described charging current testing circuit (5) comprises amplifier A1 and sampling resistor R1, sampling resistor R1 one end ground connection and be connected with the negative pole of storage battery (1), the other end is sampled point SP1, the end of amplifier A1 is connected with sampled point SP1, and the other end is connected with control unit ECU (3).
5. in the storage battery power supply lighting controller of living within one's income according to claim 4, it is characterized in that, described load current detection circuit (6) comprises amplifier A2 and sampling resistor R2, sampling resistor R2 one end ground connection, the other end is sampled point SP2, be connected with the S utmost point of MOS switching tube (9), the end of amplifier A2 is connected with sampled point SP2, and the other end is connected with control unit ECU (3).
6. in the storage battery power supply lighting controller of living within one's income according to claim 5, it is characterized in that, described voltage detecting circuit (4) comprises divider resistance R3 and divider resistance R4, divider resistance R3 and divider resistance R4 are connected into branch road, one end of this branch road is connected in the positive pole of storage battery (1), the other end ground connection of branch road is provided with the sampled point SP3 that is connected with control unit ECU (3) between divider resistance R3 and divider resistance R4.
7. in the storage battery power supply lighting controller of living within one's income according to claim 6, it is characterized in that, the positive pole of storage battery (1) is connected with the negative pole of unilateral diode D1, the positive pole of unilateral diode D1 is connected with the anodal S+ of charging, the negative pole and the ground connection of storage battery (1), charging negative pole S-is arranged on the sampled point SP1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020517109XU CN201830509U (en) | 2010-09-03 | 2010-09-03 | Battery-powered lighting controller with balance of input and output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020517109XU CN201830509U (en) | 2010-09-03 | 2010-09-03 | Battery-powered lighting controller with balance of input and output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201830509U true CN201830509U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020517109XU Expired - Lifetime CN201830509U (en) | 2010-09-03 | 2010-09-03 | Battery-powered lighting controller with balance of input and output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201830509U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387626A (en) * | 2010-09-03 | 2012-03-21 | 无锡市吉通机电技术开发有限责任公司 | Storage-battery-powered lighting controller capable of making ends meet |
| CN103050088A (en) * | 2011-10-11 | 2013-04-17 | 联芯科技有限公司 | Terminal and LCD (Liquid Crystal Display) backlight driving method thereof |
| CN103327688A (en) * | 2013-05-25 | 2013-09-25 | 河南科新光电科技有限公司 | Control structure for prolonging lighting time of solar energy and/or wind energy street lamps |
-
2010
- 2010-09-03 CN CN201020517109XU patent/CN201830509U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387626A (en) * | 2010-09-03 | 2012-03-21 | 无锡市吉通机电技术开发有限责任公司 | Storage-battery-powered lighting controller capable of making ends meet |
| CN102387626B (en) * | 2010-09-03 | 2014-06-04 | 无锡市吉通机电技术开发有限责任公司 | Storage-battery-powered lighting controller capable of making ends meet |
| CN103050088A (en) * | 2011-10-11 | 2013-04-17 | 联芯科技有限公司 | Terminal and LCD (Liquid Crystal Display) backlight driving method thereof |
| CN103050088B (en) * | 2011-10-11 | 2016-08-03 | 联芯科技有限公司 | Terminal and LCD backlight driving method thereof |
| CN103327688A (en) * | 2013-05-25 | 2013-09-25 | 河南科新光电科技有限公司 | Control structure for prolonging lighting time of solar energy and/or wind energy street lamps |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20140604 |
|
| RGAV | Abandon patent right to avoid regrant |