CN202435683U - LED (light-emitting diode) illuminating lamp connected with temperature sensor - Google Patents
LED (light-emitting diode) illuminating lamp connected with temperature sensor Download PDFInfo
- Publication number
- CN202435683U CN202435683U CN201220021211XU CN201220021211U CN202435683U CN 202435683 U CN202435683 U CN 202435683U CN 201220021211X U CN201220021211X U CN 201220021211XU CN 201220021211 U CN201220021211 U CN 201220021211U CN 202435683 U CN202435683 U CN 202435683U
- Authority
- CN
- China
- Prior art keywords
- led
- illuminating lamp
- temperature sensor
- drive circuit
- led illuminating
- 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
Links
Images
Abstract
The utility model provides an LED (light-emitting diode) illuminating lamp connected with a temperature sensor. The LED illuminating lamp is characterized in that a drive circuit (DR) comprises an AC (alternating current)/DC (direct current) [AD) circuit which can generate two working currents with different intensity, the drive circuit is provided with a switching device (K) used for ensuring that output ends (I1,I2) of two working currents with different intensity are respectively connected with LEDs (D1,D2...DN); and the switching signal output end of a control unit (C) of an environment temperature sensor (T) in the drive circuit is connected with the switching device. Compared with the prior art, the LED illuminating lamp provided by the utility model sets an operation selection under the maximal working current for the LED illuminating lamp which can work at a lower temperature, so that the LED illuminating lamp can generate the maximal brightness, thereby ensuring the same-quantity and same-rating-power LEDs in the low temperature environment to be lighted more brightly, or using less LED illuminating lamps on the premise of meeting the prearrangement brightness, and meanwhile, maintaining the normal service lives of the LEDs.
Description
Technical field
The utility model relates to a kind of LED illuminating lamp that is connected with temperature sensor, especially be exclusively used in the LED illuminating lamp of freezer.
Background technology
Suitable brightness is provided and is operated in the proper temperature environment illuminating lamp in order to control the LED illuminating lamp with protection LED; There is more document to disclose in its drive circuit and connects temperature sensor; And through the output current of control element, to reach corresponding purpose according to the ambient temperature control Driver Circuit.Like Chinese utility model patent ZL200920222329.7 " LED lamp Lamp cup " with temperature compensation function; This LED illuminating lamp " drive circuit be connected with the transducer that is used to gather the LED ambient temperature; ... the drive circuit of this LED lamp Lamp cup can be according to the real-time ambient temperature of the detected LED lamp of temperature sensor Lamp cup; the drive current to the LED device changes so that the LED device is operated in effective service area, prevents owing to the excessive LED of the making device temperature of electric current is too high " well-known, the operating current of LED illuminating lamp is big more; The heat of its generation is many more, and promptly temperature is high more.The working life of the high more then LED of temperature illuminating lamp is short more.Even if under the best heat dissipation technology, the minimum working temperature of LED illuminating lamp can not be lower than ambient temperature yet, and promptly the minimum working temperature of LED illuminating lamp is limited by ambient temperature.The aforementioned LED illuminating lamp that is connected with temperature sensor comes down to based on the variation of ambient temperature under the common environment drive circuit output current to be regulated.
In ambient temperature is that the operating current when its operating current and its use in room temperature environment can have very big difference when using the LED illuminating lamp in the low temperature environments such as freezer or field below 10 ℃.Generally, certain LED can be at its maximum operating currenbt in low temperature environment, then must operating current be controlled at lowlyer at room temperature, otherwise the working life of LED will be very short.
Summary of the invention
To above-mentioned deficiency, the utility model is exactly that a kind of LED illuminating lamp that is connected with temperature sensor that can between low-temperature zone and room temperature section, switch the different operating electric current will be provided.
The LED illuminating lamp that is connected with temperature sensor that the utility model provides; Control unit is arranged in led drive circuit; Control unit is connected with the temperature sensor of induced environment temperature; Said drive circuit comprises the AC/DC circuit of the operating current that produces two varying strengths; Said operating current is meant the operating current of each LED in the LED illuminating lamp, also has two switching device shifters that the operating current output is connected with LED respectively of the varying strength that the AC/DC circuit is produced in the drive circuit, and said control unit has the switching signal output to be connected with switching device shifter.
The LED illuminating lamp that is connected with temperature sensor that the utility model provides; Two grades of output currents in drive circuit, have been designed; And be provided with the switching device shifter that is connected with temperature sensor; This switching device shifter is realized LED is connected with these two grades of current output terminals respectively, when making ambient temperature meet switching condition.Compared with prior art; The utility model is provided with the selection of a job under maximum operating currenbt for the LED illuminating lamp under low-temperature working; Make it can produce maximum brightness; The LED with equal number, same nominal power can shine brightlyer in the low temperature environment thereby make, and perhaps meeting the LED illuminating lamp that uses under the prerequisite of predetermined luminance still less, can also keep normal useful life of LED simultaneously.
The LED illuminating lamp that is connected with temperature sensor that the utility model provides is regulated the adjusting device of output services current strength in addition in drive circuit, this adjusting device is connected with the AC/DC circuit, and control unit has the conditioning signal output to be connected with adjusting device.When the temperature signal of temperature sensor feedback changes but is not enough to reach switching condition; Regulate the workpiece current strength of output through adjusting device; So that LED works under suitable temperature-current relationship, thus the efficient and the useful life of further improving the LED illuminating lamp.
Description of drawings
Fig. 1 is the circuit diagram of the utility model one embodiment, among the figure: AD-AC/DC circuit, C-control unit, DR-drive circuit; D1, D2......DN-LED, two current output terminals of I1, I2-varying strength, K-switching device shifter; The P-connection-peg, R-adjusting device, T-temperature sensor.
Embodiment
1, a kind of freezer is used the LED illuminating lamp, with the moulding of ball lamp, and built-in 6～9 LEDs, colour temperature is 6000K ± 500K, and lighting angle is 120 °, and total light flux is 600lm～700lm, and its circuit is as shown in Figure 1.Aluminium base is installed in the lamp housing; LED D1, D2......DN are installed in series on the aluminium base; LED is connected on the output of drive circuit DR, and the drive circuit power input is connected on the lamp holder contact through lead, and drive circuit is installed between interior aluminium base of lamp housing and the lamp holder.The connection-peg P that also has a temperature sensor T signal cable to connect on the lamp housing is transferred in the drive circuit in order to the temperature sensor feedback signal that will be installed in the environment.AC/DC circuit AD in the drive circuit has two current output terminals; The current strength of the output of one of them output I1 is at 300～350mA; The current strength of the output of another output I2 is at 260～280mA, and these two outputs are connected with total output through a switching device shifter K.One control unit C is arranged in the drive circuit; Control unit has signal input part to be connected with the temperature sensor plug; Control unit has the switching signal output to be connected with switching device shifter, has current strength conditioning signal output to be connected with adjusting device R, and adjusting device connects the AC/DC circuit.Wherein the input power supply of drive circuit is AC176～265V of 50/60Hz, and output voltage is DC18～32V.During work, represent ambient temperature below 10 ℃ the time when the temperature signal of temperature sensor feedback, it is 300～350mA that control unit instruction switching device shifter switches to the output services electric current.Represent ambient temperature when being higher than 10 ℃ when the temperature signal of temperature sensor feedback, it is 260～280mA that control unit instructs switching device shifter to switch to the output services electric current.In this ambient temperature range, in the output services current range, regulate by control unit instruction adjusting device according to the variation of ambient temperature again.According to actual use test, when this routine product is worked under-35 ℃～20 ℃ ambient temperatures, to regulate when carrying out two kinds of operating current alternations by ambient temperature automatically by circuit, the working life of LED is 35000 hours, light decay rate is less than 10%.
2, a LED illuminating lamp as street lamp; The LED matrix that 5 tunnel 6 pieces of series connection are arranged; The output services electric current of AC/DC circuit has two in its drive circuit; Current strength is respectively 1500～1750mA and 1300～1400mA, is switched through switching device shifter by the switching command of confirming according to the ambient temperature of temperature sensor feedback.
Claims (2)
1. LED illuminating lamp that is connected with temperature sensor; Control unit is arranged in led drive circuit; Control unit is connected with the temperature sensor of induced environment temperature; It is characterized in that said drive circuit comprises the AC/DC circuit of the operating current that produces two varying strengths; Said operating current is meant the operating current of each LED in the LED illuminating lamp, also has two switching device shifters that the operating current output is connected with LED respectively of the varying strength that the AC/DC circuit is produced in the drive circuit, and said control unit has the switching signal output to be connected with switching device shifter.
2. as claimed in claim the LED illuminating lamp that is connected with temperature sensor; It is characterized in that in drive circuit, regulating in addition the adjusting device of output services current strength; This adjusting device is connected with the AC/DC circuit, and control unit has the conditioning signal output to be connected with adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220021211XU CN202435683U (en) | 2012-01-18 | 2012-01-18 | LED (light-emitting diode) illuminating lamp connected with temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220021211XU CN202435683U (en) | 2012-01-18 | 2012-01-18 | LED (light-emitting diode) illuminating lamp connected with temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435683U true CN202435683U (en) | 2012-09-12 |
Family
ID=46785084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220021211XU Expired - Fee Related CN202435683U (en) | 2012-01-18 | 2012-01-18 | LED (light-emitting diode) illuminating lamp connected with temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202435683U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107277994A (en) * | 2017-06-28 | 2017-10-20 | 芜湖远博电子科技有限公司 | A kind of intelligent lamp system based on temperature detection |
| CN109152130A (en) * | 2018-08-06 | 2019-01-04 | 深圳大图科创技术开发有限公司 | It is connected with the LED illumination lamp of temperature sensor |
-
2012
- 2012-01-18 CN CN201220021211XU patent/CN202435683U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107277994A (en) * | 2017-06-28 | 2017-10-20 | 芜湖远博电子科技有限公司 | A kind of intelligent lamp system based on temperature detection |
| CN109152130A (en) * | 2018-08-06 | 2019-01-04 | 深圳大图科创技术开发有限公司 | It is connected with the LED illumination lamp of temperature sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3228159B1 (en) | Current splitter for led lighting system | |
| US8890436B2 (en) | Color temperature adjustable LED lamp | |
| CN201045454Y (en) | LED lamp capable of adjusting colour temperature | |
| CN109587899A (en) | Power-supply system, lamp device and lighting system | |
| CN102149240A (en) | LED drive circuit, dimming device, LED illumination fixture, LED illumination device, and LED illumination system | |
| CN103220842B (en) | Realize the LED light emission device of colour temperature change and realize the method for colour temperature change | |
| CN103444263A (en) | Method and device for lighting a space using an led string | |
| JP3197202U (en) | LED lighting device control circuit | |
| CN102573213A (en) | LED (Light Emitting Diode) dimming system | |
| CN105530740A (en) | Light modulation control unit, illumination system, and facility apparatus | |
| CN103430627A (en) | Dimmer control of angular distribution of light | |
| CN109548240A (en) | A kind of controller and its control method of programmable automatic constant LED illuminance | |
| CN202435683U (en) | LED (light-emitting diode) illuminating lamp connected with temperature sensor | |
| CN104754828A (en) | Lighting control method, device and system for LED lamp | |
| CN102811527A (en) | LED frequency-variable marker lamp and control circuit and control method of marker lamp | |
| CN103476189A (en) | Switching type output transformation and variable current LED (Light-Emitting Diode) driving power supply circuit | |
| CN103582220B (en) | The LED lamp of adjustable color temperature | |
| CN201081098Y (en) | Alternating-current and/ or DC lamination device powered by AC | |
| CN205336577U (en) | Single wire system alternating current carrier wave switching device that adjusts luminance | |
| CN202374523U (en) | Light emitting diode (LED) human body induction lamp | |
| CN103982804B (en) | A kind of free drive moves adjustable color temperature device and light fixture | |
| CN209731641U (en) | A kind of controller of programmable automatic constant LED illuminance | |
| CN202340331U (en) | Digital stepless dimmer for LED light source of optical microscope | |
| KR20170130965A (en) | Illumination Control Lighting Apparatus with Multi SMPS | |
| CN205754952U (en) | The adjustable syllogic LED control circuit of a kind of output |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Tao Inventor after: Lin Hai Inventor after: Yu Hairong Inventor after: Huang Huajie Inventor before: Lin Tao Inventor before: Lin An Inventor before: Yu Hairong Inventor before: Huang Huajie |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIN TAO LIN AN YU HAIRONG HUANG HUAJIE TO: LIN TAO LIN HAI YU HAIRONG HUANG HUAJIE |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |