CN203757404U - LED (Light-Emitting Diode) panel lamp - Google Patents
LED (Light-Emitting Diode) panel lamp Download PDFInfo
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- CN203757404U CN203757404U CN201320885648.2U CN201320885648U CN203757404U CN 203757404 U CN203757404 U CN 203757404U CN 201320885648 U CN201320885648 U CN 201320885648U CN 203757404 U CN203757404 U CN 203757404U
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Abstract
The utility model discloses an LED (Light-Emitting Diode) panel lamp, which comprises a lamp shell, an LED driver, a PCB (Printed Circuit Board), an LED module and a dodging plate, wherein the lamp shell comprises an upper shell and a lower shell cover; the upper shell and the lower shell cover form a sealed space; the LED driver is arranged outside the upper shell; the PCB is fixed to the upper inner wall of the upper shell; the LED module comprises a plurality of LED lamp beads which are fixed to the PCB; the dodging plate is arranged on the lower shell cover; the border of the dodging plate is contacted with the inner wall of the upper shell; a dual-side adhesive tape is stuck to a contact position between the border of the dodging plate and the inner wall of the upper shell. By adopting the structure, an optimal light-mixing effect can be achieved for the LED panel lamp, and light spots are avoided.
Description
Technical field
The utility model relates to LED lamp field, specifically a kind of LED panel light.
Background technology
LED panel light is a kind of light source efficiently, owing to having the advantages such as long, energy consumption is low, energy-conserving and environment-protective of life-span, is just being widely used in the lighting fields such as civilian, business.But, the most of Switching Power Supply that adopts of LED panel light of TRIAC light modulation, dimming effect is undesirable, limited to the compatibility of light modulator.
At present, a lot of LED panel lights, in order to reduce the power of LED lamp or to dwindle the volume of LED panel light, cause LED panel light cannot realize best mixed light, easily occur hot spot.
Utility model content
The utility model provides a kind of LED panel light, and object is that the current LED panel light mixed light of solution is not good, easily occurs the problem of hot spot.
Another object of the present utility model is that the current LED panel light of solution is limited to the compatibility of light modulator, the problem that dimming effect is not good.
The purpose of this utility model is achieved through the following technical solutions: a kind of LED panel light, comprise lamp housing, LED driver, PCB circuit board, LED module, even tabula rasa, described lamp housing comprises upper shell and housing lower cover, upper shell and housing lower cover form the space of a sealing, described LED driver is arranged on the outside of upper shell, described PCB circuit board is fixed in the upper inside wall of upper shell, described LED module comprises some LED lamp pearls, LED lamp pearl is fixed on PCB circuit board, described even tabula rasa is arranged under housing and covers, and the frame of even tabula rasa contacts with the inwall of upper shell, the contact position of the frame of described even tabula rasa and the inwall of upper shell is pasted with double-sided tape.
Further, described LED lamp pearl is equidistant distribution, and the distance between adjacent two LED lamp pearls is 3 ~ 5mm, and every LED lamp pearl is 8 ~ 10mm to the distance of even tabula rasa.
Further, also comprise multiple installation sheets, installation sheet is screwed on upper shell.
Further, described LED driver comprises input protection unit, full-bridge rectification unit, voltage sample unit, control module, isolated variable unit and output driver element, the output of described input protection unit is connected with the input of full-bridge rectification unit, the output of full-bridge rectification unit and control module, the input of voltage sample unit connects, the output of described voltage sample unit is connected with another input of control module, the output of control module is connected with the input of isolated variable unit, the output of isolated variable unit is connected with the input of output driver element,
Further, described output driver element comprises the first output driver element and the second output driver element, the first output driver element is connected with the output of isolated variable unit with the input of the second output driver element, and the first output driver element is connected respectively LED module with on the second output driver element.
Further, described input protection unit comprises fuse 101 and piezo-resistance R1, one end of fuse connects live wire L as input, and the other end is connected with one end of piezo-resistance R1, and the other end of fuse is also connected with an input of full-bridge rectification unit; The other end of piezo-resistance R1 is made input and is connected zero line N, and this end is also connected with another input of full-bridge rectification unit simultaneously.
Further, described full-bridge rectification unit comprises commutation diode D1, commutation diode D2, commutation diode D3, commutation diode D4, the anode of commutation diode D1 is connected with the negative electrode of commutation diode D3, the anode of commutation diode D2 is connected with the negative electrode of commutation diode D4, the negative electrode of described commutation diode D1 is connected with the negative electrode of commutation diode D2, the anode of commutation diode D3 is connected with the anode of commutation diode D4, the anode of commutation diode D1 is as an input of full-bridge rectification unit, the anode of commutation diode D2 is as another input of full-bridge rectification unit, the negative electrode of described commutation diode D2 is as the positive output end of full-bridge rectification unit, the anode of commutation diode D4 is as the negative output terminal of full-bridge rectification unit.
Further, described voltage sample unit comprises resistance R 2, resistance R 3, commutation diode D5, Zener diode D6, capacitor C 1, one end of described resistance R 2 is connected with the negative electrode of commutation diode D1, the anodic bonding of the other end of resistance R 2 and commutation diode D5, the anodic bonding of one end of described resistance R 3 and commutation diode D5, the other end is connected with zero line N, the anode of described Zener diode D6 is connected with zero line N, the negative electrode of Zener diode D6 is connected with the negative electrode of commutation diode D5, one end of described capacitor C 1 is connected with the negative electrode of commutation diode D5, the other end is connected with zero line N.
Further, described control module comprises control chip U1, power field effect pipe D7, resistance R 4, resistance R 5, capacitor C 2, one end of the negative electrode of described commutation diode D5, the negative electrode of Zener diode D6, capacitor C 1 is connected to the VREF end of control chip U1 jointly, and the feeder ear HV of control chip U1 is directly connected to the negative electrode of commutation diode D1; The fixing ON time control end RT of control chip U1 is connected to one end of resistance R 4; The negative-feedback input CS of control chip U1 is connected with the source terminal of power field effect pipe D7, one end of resistance R 5; The output control terminal DRV of control chip U1 is connected with the gate terminal of power field effect pipe D7, the other end of resistance R 4, the other end of resistance R 5 are connected to zero line N, one end of described capacitor C 2 is connected with the internal electrical source VCC of control chip U1, and the other end is connected with zero line N.Control chip U1 comprises 6 exits, is respectively VREF end, RT end, CS end, DRV end, HV end, VCC end, and VREF holds as external reference voltage interface, is guard signal input; RT end is fixing ON time control end; CS end is negative-feedback input; DRV end is output control terminal; HV end is feeder ear; VCC end is internal electrical source, and this chip is mainly set output current by the resistance of setting resistance R 4, and those skilled in the art can know its structure, also can adopt different structures to realize the function of above-mentioned each exit.
Further, described isolated variable unit comprises diode D8, isolating transformer S1, isolating transformer S1 has two secondary windings, the anode of diode D8 one end elementary with drain electrode, the isolating transformer S1 of power field effect pipe D7 is connected, and the negative electrode of the diode D8 other end elementary with positive output end, the isolating transformer S1 of full-bridge rectification unit is connected.
Further, described the first output driver element comprises diode D9, electrochemical capacitor C3, capacitor C 4, the anodic bonding of diode D9 is to one end of first secondary windings of isolating transformer S1, the negative electrode of diode D9 is connected to the anode of LED module, the negative terminal of LED module is connected to the other end of first secondary windings of isolating transformer S1, one end of described electrochemical capacitor C3 is connected to the pin of diode D9, the other end is connected with the negative terminal of LED module, and the two ends of described capacitor C 4 are connected to the two ends of electrochemical capacitor C3;
Described the second output driver element comprises diode D10, the anodic bonding of diode D10 is to one end of second secondary windings of isolating transformer S1, the negative electrode of diode D10 is connected to the anode of LED module, the negative terminal of LED module is connected to the other end of second secondary windings of isolating transformer S1, one end of described electrochemical capacitor C5 is connected to the pin of diode D10, the other end is connected with the negative terminal of LED module, and the two ends of described capacitor C 6 are connected to the two ends of electrochemical capacitor C5.
The utlity model has following beneficial effect:
(1) the utility model, by the contact position of the frame of even tabula rasa and the inwall of upper shell sticking two-faced adhesive tape bar, had both played the effect of fixing even tabula rasa, also made the edge of even tabula rasa play good diffusion simultaneously.
(2) LED lamp pearl of the present utility model is equidistant distribution, distance between adjacent two LED lamp pearls is 3 ~ 5mm, every LED lamp pearl is 8 ~ 10mm to the distance of even tabula rasa, enough light paths are so not only ensured, realize best mixed light, guarantee there will not be hot spot, the power of whole fluorescent tube is unlikely to too high simultaneously.
(3) the utility model arranges voltage sample unit; by detecting input voltage; over-voltage protection point is set, under the state lower than over-voltage protection point, with fixed duty cycle and frequency work; under state higher than high voltage protective point; by default backfeed loop, change dutycycle, reduce output voltage; thereby reduction electric current, has protected LED lamp pearl.
(4) the utility model adopts the isolating transformers of two output windings, has not only improved power output, and provides the mode of connection more easily for LED module.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1 of the present utility model;
Fig. 2 is the structural representation of embodiment 3 of the present utility model;
Fig. 3 is the LED driver theory diagram of embodiment 4 of the present utility model;
Fig. 4 is the circuit theory diagrams of the LED driver of embodiment 4 of the present utility model;
Fig. 5 is the unidirectional sine pulse waveform figure of input;
Fig. 6 is output voltage waveform;
Fig. 7 is that the voltage waveform of electric main is cut the oscillogram after a part;
Fig. 8 is output voltage waveform.
detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment 1:
As shown in Figure 1, a kind of LED panel light described in the present embodiment, comprise lamp housing, LED driver 1, PCB circuit board 2, LED module, even tabula rasa 4, lamp housing comprises upper shell 5 and housing lower cover 6, upper shell 5 and housing lower cover 6 form the space of a sealing, LED driver 1 is arranged on the outside of upper shell 5, PCB circuit board 2 is fixed in the upper inside wall of upper shell 5, LED module comprises some LED lamp pearls 3, LED lamp pearl 3 is fixed on PCB circuit board 2, even tabula rasa 4 is arranged on housing lower cover 6, and the frame of even tabula rasa 4 contacts with the inwall of upper shell 5, the contact position of the inwall of the frame of even tabula rasa 4 and upper shell 5 is pasted with double-sided tape.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, and different places are, the LED lamp pearl 3 of the present embodiment is equidistant distribution, and the distance between adjacent two LED lamp pearls 3 is 3 ~ 5mm, and every LED lamp pearl 3 is 8 ~ 10mm to the distance of even tabula rasa 4.Theoretically, the distance between LED lamp pearl 3 is the smaller the better, because spacing is less, need even tabula rasa 4 also less to the spacing between LED lamp pearl 3, but spacing is little, can cause whole lamp power too large; In addition, because will improve luminance uniformity, just must increase the thickness in lamp mixed chamber, to increase light path, realize best mixed light, but can increase like this integral thickness and the increasing of light fixture light loss of light fixture.Based on the problems referred to above, inventor finds through a large amount of research, when LED lamp pearl 3 is equidistant distribution, distance between adjacent two LED lamp pearls 3 is 3 ~ 5mm, when every LED lamp pearl 3 is 8 ~ 10mm to the distance of even tabula rasa 4, can obtain enough light paths, meet the needs of best mixed light, distance between LED lamp pearl 3 is unlikely to too little simultaneously, and the power of whole lamp is not too large, also can not produce hot spot.
Embodiment 3:
As shown in Figure 2, the present embodiment, on the basis of embodiment 1, also comprises multiple installation sheets 7, and installation sheet 7 is screwed on upper shell 5, and installation sheet 7 has facilitated installation, the dismounting of LED panel light.
Embodiment 4:
As shown in Figure 3, the present embodiment is substantially the same manner as Example 1, different places are, the LED driver 1 of the present embodiment comprises input protection unit, full-bridge rectification unit, voltage sample unit, control module, isolated variable unit and output driver element, the output of described input protection unit is connected with the input of full-bridge rectification unit, the output of full-bridge rectification unit and control module, the input of voltage sample unit connects, the output of described voltage sample unit is connected with another input of control module, the output of control module is connected with the input of isolated variable unit, the output of isolated variable unit is connected with the input of output driver element,
The output driver element of the present embodiment comprises the first output driver element and the second output driver element, the first output driver element is connected with the output of isolated variable unit with the input of the second output driver element, and the first output driver element is connected respectively LED module with on the second output driver element.
The input protection unit of the present embodiment comprises fuse 101 and piezo-resistance R1, and one end of fuse connects live wire L as input, and the other end is connected with one end of piezo-resistance R1, and the other end of fuse is also connected with an input of full-bridge rectification unit; The other end of piezo-resistance R1 is made input and is connected zero line N, and this end is also connected with another input of full-bridge rectification unit simultaneously.
The full-bridge rectification unit of the present embodiment comprises commutation diode D1, commutation diode D2, commutation diode D3, commutation diode D4, the anode of commutation diode D1 is connected with the negative electrode of commutation diode D3, the anode of commutation diode D2 is connected with the negative electrode of commutation diode D4, the negative electrode of described commutation diode D1 is connected with the negative electrode of commutation diode D2, the anode of commutation diode D3 is connected with the anode of commutation diode D4, the anode of commutation diode D1 is as an input of full-bridge rectification unit, the anode of commutation diode D2 is as another input of full-bridge rectification unit, the negative electrode of described commutation diode D2 is as the positive output end of full-bridge rectification unit, the anode of commutation diode D4 is as the negative output terminal of full-bridge rectification unit.
The voltage sample unit of the present embodiment comprises resistance R 2, resistance R 3, commutation diode D5, Zener diode D6, capacitor C 1, one end of described resistance R 2 is connected with the negative electrode of commutation diode D1, the anodic bonding of the other end of resistance R 2 and commutation diode D5, the anodic bonding of one end of described resistance R 3 and commutation diode D5, the other end is connected with zero line N, the anode of described Zener diode D6 is connected with zero line N, the negative electrode of Zener diode D6 is connected with the negative electrode of commutation diode D5, one end of described capacitor C 1 is connected with the negative electrode of commutation diode D5, the other end is connected with zero line N.
The control module of the present embodiment comprises control chip U1, power field effect pipe D7, resistance R 4, resistance R 5, capacitor C 2, one end of the negative electrode of described commutation diode D5, the negative electrode of Zener diode D6, capacitor C 1 is connected to the VREF end of control chip U1 jointly, and the feeder ear HV of control chip U1 is directly connected to the negative electrode of commutation diode D1; The fixing ON time control end RT of control chip U1 is connected to one end of resistance R 4; The negative-feedback input CS of control chip U1 is connected with the source terminal of power field effect pipe D7, one end of resistance R 5; The output control terminal DRV of control chip U1 is connected with the gate terminal of power field effect pipe D7, the other end of resistance R 4, the other end of resistance R 5 are connected to zero line N, one end of described capacitor C 2 is connected with the internal electrical source VCC of control chip U1, and the other end is connected with zero line N.
The isolated variable unit of the present embodiment comprises diode D8, isolating transformer S1, isolating transformer S1 has two secondary windings, the anode of diode D8 one end elementary with drain electrode, the isolating transformer S1 of power field effect pipe D7 is connected, and the negative electrode of the diode D8 other end elementary with positive output end, the isolating transformer S1 of full-bridge rectification unit is connected.
The first output driver element of the present embodiment comprises diode D9, electrochemical capacitor C3, capacitor C 4, the anodic bonding of diode D9 is to one end of first secondary windings of isolating transformer S1, the negative electrode of diode D9 is connected to the anode of LED module, the negative terminal of LED module is connected to the other end of first secondary windings of isolating transformer S1, one end of described electrochemical capacitor C3 is connected to the pin of diode D9, the other end is connected with the negative terminal of LED module, and the two ends of described capacitor C 4 are connected to the two ends of electrochemical capacitor C3;
The second output driver element of the present embodiment comprises diode D10, the anodic bonding of diode D10 is to one end of second secondary windings of isolating transformer S1, the negative electrode of diode D10 is connected to the anode of LED module, the negative terminal of LED module is connected to the other end of second secondary windings of isolating transformer S1, one end of described electrochemical capacitor C5 is connected to the pin of diode D10, the other end is connected with the negative terminal of LED module, and the two ends of described capacitor C 6 are connected to the two ends of electrochemical capacitor C5.
The operation principle of the present embodiment: in the time that LED driver front end does not connect TRIAC light modulator, electric main, by protected location, becomes unidirectional Sinusoidal Pulse Waves through full-bridge rectification cell translation, as shown in Figure 5.Be connected to the resistance of the resistance R 4 of the RT end of control chip U1 by setting, set output current corresponding to specified operating voltage.The mode of operation of voltage sample unit sampling signal determining control chip U1, if sampled signal is less than VREF, the dutycycle work of control chip U1 to fix, its output current voltage waveform is as shown in Figure 6.During when LED driver front end connection TRIAC light modulator and in a certain dimming state, the voltage waveform of electric main is cut a part, as shown in Figure 7; Output current wave as shown in Figure 8.LED module efficient light is exported corresponding minimizing, thereby plays the effect of light modulation.If the signal of sampling is greater than VREF, the sampled signal of current feedback resistance R 5 is effective, is held and is entered control chip U1 by CS, and the signal of exporting to adjust the DRV end of control chip U1, reaches the effect that reduces output current.
Claims (10)
1. a LED panel light, it is characterized in that: comprise lamp housing, LED driver (1), PCB circuit board (2), LED module, even tabula rasa (4), described lamp housing comprises upper shell (5) and housing lower cover (6), upper shell (5) and housing lower cover (6) form the space of a sealing, described LED driver (1) is arranged on the outside of upper shell (5), described PCB circuit board (2) is fixed in the upper inside wall of upper shell (5), described LED module comprises some LED lamp pearls (3), LED lamp pearl (3) is fixed on PCB circuit board (2), described even tabula rasa (4) is arranged on housing lower cover (6), and the frame of even tabula rasa (4) contacts with the inwall of upper shell (5), the contact position of the inwall of the frame of described even tabula rasa (4) and upper shell (5) is pasted with double-sided tape.
2. a kind of LED panel light according to claim 1, is characterized in that: described LED lamp pearl (3) is equidistant distribution, and the distance between adjacent two LED lamp pearls (3) is 3 ~ 5mm, and every LED lamp pearl (3) is 8 ~ 10mm to the distance of even tabula rasa (4).
3. a kind of LED panel light according to claim 1, is characterized in that: also comprise multiple installation sheets (7), installation sheet (7) is screwed on upper shell (5).
4. a kind of LED panel light according to claim 1, it is characterized in that: described LED driver (1) comprises input protection unit, full-bridge rectification unit, voltage sample unit, control module, isolated variable unit and output driver element, the output of described input protection unit is connected with the input of full-bridge rectification unit, the output of full-bridge rectification unit and control module, the input of voltage sample unit connects, the output of described voltage sample unit is connected with another input of control module, the output of control module is connected with the input of isolated variable unit, the output of isolated variable unit is connected with the input of output driver element, described output driver element comprises the first output driver element and the second output driver element, the first output driver element is connected with the output of isolated variable unit with the input of the second output driver element, and the first output driver element is connected respectively LED module with on the second output driver element.
5. a kind of LED panel light according to claim 4, it is characterized in that: described input protection unit comprises fuse 101 and piezo-resistance R1, one end of fuse connects live wire L as input, the other end is connected with one end of piezo-resistance R1, and the other end of fuse is also connected with an input of full-bridge rectification unit; The other end of piezo-resistance R1 is made input and is connected zero line N, and this end is also connected with another input of full-bridge rectification unit simultaneously.
6. a kind of LED panel light according to claim 5, it is characterized in that: described full-bridge rectification unit comprises commutation diode D1, commutation diode D2, commutation diode D3, commutation diode D4, the anode of commutation diode D1 is connected with the negative electrode of commutation diode D3, the anode of commutation diode D2 is connected with the negative electrode of commutation diode D4, the negative electrode of described commutation diode D1 is connected with the negative electrode of commutation diode D2, the anode of commutation diode D3 is connected with the anode of commutation diode D4, the anode of commutation diode D1 is as an input of full-bridge rectification unit, the anode of commutation diode D2 is as another input of full-bridge rectification unit, the negative electrode of described commutation diode D2 is as the positive output end of full-bridge rectification unit, the anode of commutation diode D4 is as the negative output terminal of full-bridge rectification unit.
7. a kind of LED panel light according to claim 6, it is characterized in that: described voltage sample unit comprises resistance R 2, resistance R 3, commutation diode D5, Zener diode D6, capacitor C 1, one end of described resistance R 2 is connected with the negative electrode of commutation diode D1, the anodic bonding of the other end of resistance R 2 and commutation diode D5, the anodic bonding of one end of described resistance R 3 and commutation diode D5, the other end is connected with zero line N, the anode of described Zener diode D6 is connected with zero line N, the negative electrode of Zener diode D6 is connected with the negative electrode of commutation diode D5, one end of described capacitor C 1 is connected with the negative electrode of commutation diode D5, the other end is connected with zero line N.
8. a kind of LED panel light according to claim 7, it is characterized in that: described control module comprises control chip U1, power field effect pipe D7, resistance R 4, resistance R 5, capacitor C 2, one end of the negative electrode of described commutation diode D5, the negative electrode of Zener diode D6, capacitor C 1 is connected to the VREF end of control chip U1 jointly, and the feeder ear HV of control chip U1 is directly connected to the negative electrode of commutation diode D1; The fixing ON time control end RT of control chip U1 is connected to one end of resistance R 4; The negative-feedback input CS of control chip U1 is connected with the source terminal of power field effect pipe D7, one end of resistance R 5; The output control terminal DRV of control chip U1 is connected with the gate terminal of power field effect pipe D7, the other end of resistance R 4, the other end of resistance R 5 are connected to zero line N, one end of described capacitor C 2 is connected with the internal electrical source VCC of control chip U1, and the other end is connected with zero line N.
9. a kind of LED panel light according to claim 8, it is characterized in that: described isolated variable unit comprises diode D8, isolating transformer S1, isolating transformer S1 has two secondary windings, the anode of diode D8 one end elementary with drain electrode, the isolating transformer S1 of power field effect pipe D7 is connected, and the negative electrode of the diode D8 other end elementary with positive output end, the isolating transformer S1 of full-bridge rectification unit is connected.
10. a kind of LED panel light according to claim 9, it is characterized in that: described the first output driver element comprises diode D9, electrochemical capacitor C3, capacitor C 4, the anodic bonding of diode D9 is to one end of first secondary windings of isolating transformer S1, the negative electrode of diode D9 is connected to the anode of LED module, the negative terminal of LED module is connected to the other end of first secondary windings of isolating transformer S1, one end of described electrochemical capacitor C3 is connected to the pin of diode D9, the other end is connected with the negative terminal of LED module, the two ends of described capacitor C 4 are connected to the two ends of electrochemical capacitor C3,
Described the second output driver element comprises diode D10, the anodic bonding of diode D10 is to one end of second secondary windings of isolating transformer S1, the negative electrode of diode D10 is connected to the anode of LED module, the negative terminal of LED module is connected to the other end of second secondary windings of isolating transformer S1, one end of described electrochemical capacitor C5 is connected to the pin of diode D10, the other end is connected with the negative terminal of LED module, and the two ends of described capacitor C 6 are connected to the two ends of electrochemical capacitor C5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885648.2U CN203757404U (en) | 2013-12-31 | 2013-12-31 | LED (Light-Emitting Diode) panel lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885648.2U CN203757404U (en) | 2013-12-31 | 2013-12-31 | LED (Light-Emitting Diode) panel lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757404U true CN203757404U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885648.2U Expired - Fee Related CN203757404U (en) | 2013-12-31 | 2013-12-31 | LED (Light-Emitting Diode) panel lamp |
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| CN (1) | CN203757404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485638A (en) * | 2016-01-05 | 2016-04-13 | 贵阳欧派电器科技有限公司 | LED straight light illuminating lamp |
-
2013
- 2013-12-31 CN CN201320885648.2U patent/CN203757404U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485638A (en) * | 2016-01-05 | 2016-04-13 | 贵阳欧派电器科技有限公司 | LED straight light illuminating lamp |
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Granted publication date: 20140806 Termination date: 20181231 |