CN202587492U - High-power LED constant-voltage stable-current driving light source - Google Patents
High-power LED constant-voltage stable-current driving light source Download PDFInfo
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- CN202587492U CN202587492U CN 201220121761 CN201220121761U CN202587492U CN 202587492 U CN202587492 U CN 202587492U CN 201220121761 CN201220121761 CN 201220121761 CN 201220121761 U CN201220121761 U CN 201220121761U CN 202587492 U CN202587492 U CN 202587492U
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- led
- temperature
- lamp
- light source
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Abstract
The utility model relates to a high-power LED (Light-Emitting Diode) constant-voltage stable-current driving light source, which is capable of effectively solving the problem of great reduction and even termination of the service life of an LED lighting lamp if a constant-current driver or a constant-voltage driver is employed. Thetechnical scheme for solution is as follows: the high-power LED constant-voltage stable-current driving light source comprises a housing and a circuit arranged therein, wherein the circuit comprises a direct-current power source, a fan, a heat-sensitive switch, a lamp bulb, an LED lamp, a heating wire and a temperature-sensitive switch; one end of the fan is connected with one end of the heat-sensitive switch, while the other end thereof is connected to the anode of the power source and one end of the lamp bulb; the other end of the lamp bulb is connected to the anode of the LED lamp and one end of the heating wire; the other end of the electric heating is connected with one end of the temperature-sensitive switch; the other end of the temperature-sensitive switch is connected with the cathode of the LED lamp; and the cathode of the direct-current power source is connected with the other end of the heat-sensitive switch. The high-power LED constant-voltage stable-current driving light source is simple in structure, good in applying effect and long in service life, and thereby is an innovation in the LED lighting lamp.
Description
Technical field
The utility model relates to electrical equipment, particularly a kind of great power LED constant voltage current stabilization drive-type light source.
Background technology
The life-span of LED illuminating lamp and temperature and electric current have confidential relation, and the LED illuminating lamp generally adopts constant-flow driver, and its output current does not change with the change of input voltage, load and ambient temperature; But when LED illuminating lamp ambient temperature of living in was higher than trouble free service point temperature, the forward current of LED illuminating lamp will exceed the place of safety, made life-span of LED illuminating lamp greatly reduce even damage; This is the shortcoming of constant-flow driver just; Can impel the temperature of LED illuminating lamp further to raise because keep constant of output current, if adopt the constant voltage driving device, its output voltage does not change with the change of input current, load and ambient temperature; Because the LED PN junction voltage VF that temperature causes descends; Aggravated the increase of electric current like this, the forward current of LED illuminating lamp will exceed the place of safety, makes life-span of LED illuminating lamp greatly reduce even damage equally; Therefore, the improvement of LED illuminating lamp is a problem of needing solution at present badly.
Summary of the invention
To above-mentioned situation; For solving the defective of prior art; The purpose of the utility model just provides a kind of great power LED constant voltage current stabilization drive-type light source, can effectively solve to adopt constant-flow driver or constant voltage driving device to make the problem that the life-span of LED illuminating lamp greatly reduces even damage.
The technical scheme that the utility model solves is; Comprise housing and interior circuit thereof; Described circuit comprises DC power supply, fan, thermoswitch, lamp pearl, LED lamp, heating wire and temperature-sensitive switch, and fan one end is connected with thermoswitch one end, another termination positive source of fan and lamp pearl one end; The positive pole of the other end of lamp pearl and LED lamp and heating wire one end link to each other; The heating wire other end links to each other with temperature-sensitive switch one end, and the temperature-sensitive switch other end is connected with the negative pole of LED lamp, and the negative pole of DC power supply is connected with the other end of thermoswitch.
The utility model is simple in structure, result of use good, the life-span is long, is the innovation on the LED illuminating lamp.
Description of drawings
Fig. 1 is the circuit diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further explain.
The utility model comprises housing and interior circuit thereof in the specific implementation, and described circuit is provided by Fig. 1, comprises DC power supply V
O, fan M, thermoswitch K
1, lamp pearl D
1, LED lamp D
2, heating wire R
0With temperature-sensitive switch K
2, fan M one end and thermoswitch K
1One end connects, another termination power of fan M V
OPositive pole and lamp pearl D
1One end, lamp pearl D
1The other end and LED lamp D
2Positive pole and heating wire R
0One end links to each other, heating wire R
0The other end and temperature-sensitive switch K
2One end links to each other, temperature-sensitive switch K
2The other end and LED lamp D
2Negative pole be connected DC power supply V
ONegative pole and thermoswitch K
1The other end be connected.
In order to guarantee result of use, described lamp pearl, two opposite temperature coefficients series connection of LED lamp constitute luminous element, and the electric current that is passed through is relatively stable.
Described DC power supply V
OBe the dc constant voltage power supply, this power supply can use for a plurality of great power LED constant voltage current stabilization drive-type light source parallel connections.
Described fan M is a radiator fan of by thermoswitch temperature being controlled, had fin automatically.
Described LED lamp D
2When work is non-linear negative temperature coefficient.
Described lamp pearl D
1When work is non-linear positive temperature coefficient.
The operating position of the utility model is with the mode Control current of constant voltage power supply and current stabilization, to have solved because the increase of electric current damages device; Use the fan of controlling automatically by thermoswitch to avoid LED to damage because of temperature is too high; Adopt the constant voltage power supply to avoid LED unprovoked damage as constant-flow driver (LED is with constant-current driving critical defect-surge voltage), under the constant voltage power supply, arbitrarily increase and decrease many these light sources with parallel form; Increase preheat function at cold snap, avoided the LED lamp possibly cause the inefficacy of LED device at the ground applied environment of trembling with fear; Guarantee LED operate as normal within the safety zone.
Utilize the method for current stabilization and heat radiation to make the increase of the forward current of circuit control LED, avoided that LED is too high because of temperature, electric current increases and damage; Also avoided LED with the unprovoked damage of constant-flow driver (LED is with constant-current driving critical defect-surge voltage); Designing to led driver increase current stabilization and temp regulating function according to excellent, the shortcoming of above two kinds of drivers is a kind of simple and easy to do solution, and it is to have adopted the complementary principle restriction electric current of Positive and Negative Coefficient Temperature in allowed band, to change that led driver increases the current stabilization basic principle.In case thermoregulator basic principle is when abnormal conditions occurring and making the LED temperature too high; Led driver can be according to the detected temperature of thermoswitch; Automatically open radiator fan; Guarantee that LED is operated within the safety zone, this has just fundamentally solved the difficult problem that LED crosses cause thermal damage or reduces useful life, thereby has improved the reliability and security of LED light fixture greatly; When temperature was reduced to the safety zone, the LED radiator fan cut out automatically, and the utility model is simple in structure, result of use good, the life-span is long, is the innovation on the LED illuminating lamp, has good economic and social benefit.
Claims (4)
1. great power LED constant voltage current stabilization drive-type light source; Comprise housing and interior circuit thereof, it is characterized in that described circuit comprises DC power supply, fan, thermoswitch, lamp pearl, LED lamp, heating wire and temperature-sensitive switch; Fan one end is connected with thermoswitch one end; Another termination positive source of fan and lamp pearl one end, the positive pole and heating wire one end of the other end of lamp pearl and LED lamp link to each other, and the heating wire other end links to each other with temperature-sensitive switch one end; The temperature-sensitive switch other end is connected with the negative pole of LED lamp, and the negative pole of DC power supply is connected with the other end of thermoswitch.
2. great power LED constant voltage current stabilization drive-type light source according to claim 1 is characterized in that, described lamp pearl, two opposite temperature coefficients series connection of LED lamp constitute luminous element, and the electric current that is passed through is relatively stable.
3. great power LED constant voltage current stabilization drive-type light source according to claim 1 is characterized in that described DC power supply is the dc constant voltage power supply.
4. great power LED constant voltage current stabilization drive-type light source according to claim 1 is characterized in that described fan is a radiator fan of by thermoswitch temperature being controlled, had fin automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121761 CN202587492U (en) | 2012-03-28 | 2012-03-28 | High-power LED constant-voltage stable-current driving light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121761 CN202587492U (en) | 2012-03-28 | 2012-03-28 | High-power LED constant-voltage stable-current driving light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202587492U true CN202587492U (en) | 2012-12-05 |
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ID=47256842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220121761 Expired - Fee Related CN202587492U (en) | 2012-03-28 | 2012-03-28 | High-power LED constant-voltage stable-current driving light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202587492U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244501A (en) * | 2013-06-14 | 2014-12-24 | 海洋王（东莞）照明科技有限公司 | Lamp with active heat dissipating device |
| CN107682956A (en) * | 2017-10-11 | 2018-02-09 | 佛山电器照明股份有限公司 | A kind of light fixture with fan |
| US10225949B2 (en) | 2016-12-06 | 2019-03-05 | GE Lighting Solutions, LLC | Method and system for controlling fan rotating speed of LED lamp, and LED lamp thereof |
-
2012
- 2012-03-28 CN CN 201220121761 patent/CN202587492U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244501A (en) * | 2013-06-14 | 2014-12-24 | 海洋王（东莞）照明科技有限公司 | Lamp with active heat dissipating device |
| CN104244501B (en) * | 2013-06-14 | 2016-10-12 | 海洋王（东莞）照明科技有限公司 | A kind of light fixture with active heat radiating device |
| US10225949B2 (en) | 2016-12-06 | 2019-03-05 | GE Lighting Solutions, LLC | Method and system for controlling fan rotating speed of LED lamp, and LED lamp thereof |
| CN107682956A (en) * | 2017-10-11 | 2018-02-09 | 佛山电器照明股份有限公司 | A kind of light fixture with fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130328 |