CN205987456U - High power factor hangs down stroboscopic LED ceiling lamp - Google Patents
High power factor hangs down stroboscopic LED ceiling lamp Download PDFInfo
- Publication number
- CN205987456U CN205987456U CN201620788807.0U CN201620788807U CN205987456U CN 205987456 U CN205987456 U CN 205987456U CN 201620788807 U CN201620788807 U CN 201620788807U CN 205987456 U CN205987456 U CN 205987456U
- Authority
- CN
- China
- Prior art keywords
- light source
- led
- circuit board
- power factor
- source module
- 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
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Classifications
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The utility model provides a high power factor hangs down stroboscopic LED ceiling lamp, belongs to domestic appliance technical field, characterized by: linear constant current circuit's output is connected to bridge type rectifier circuit's input, and the filter capacitance both ends are connected with bridge type rectifier circuit's output and linear constant current circuit's input respectively, LED light source module and filter capacitance parallel connection. At the fixed spherical lamp shade of circular mounting plate edge, the quotation is fixed with the light source circuit board in mounting plate, is fixed with LED light source module and dirver circuit board on the light source circuit board respectively, makes the equilibrium of LED light source module arrange on the light source circuit board. The beneficial effects are that: without switching power supply drive, can directly use high -pressure linear drive's LED ceiling lamp, have with low costs, small advantage to guaranteeing that power factor is greater than under 0.9 the prerequisite, effectively solve the stroboscopic problem, the light that LED sent is bright soft, swashs and the injury eyes are stingless, has saved the electric energy.
Description
Technical field
The utility model belongs to household electrical appliance technical field, is related to a kind of improvement of indoor illumination.
Background technology
At present, LED, as a kind of New Solid light source, has the advantages that energy-saving and environmental protection, life-span length, is widely used in work
Industry, agricultural, the field such as commercial lighting.At present it is generally believed that the ideal operation mode of LED is to be driven using constant-current supply, and I
Productive life electricity consumption be but sinusoidal ac.Therefore, want normally to light LED, need a power supply changeover device, realize whole
Stream and the function of step-down/constant current.In conventional power source, the electronic component such as transformer of large volume occupies greatly empty
Between so that design is when being applied to compact light fixture, space is crowded, lacks heat-dissipating space, also gives structure design and luminous intensity distribution design band
No small obstacle.
Drive in LED circuit technology in published high-voltage linear, be to connect into reverse parallel connection electricity using plurality of LEDs mostly
Road or bridge rectifier, or using drive part by part technology popular on the market now, will with the driving meeting alternating current
Ask.But, alternating current is to fluctuate according to certain frequency cycle, due to the presence of LED itself cut-in voltage, only in wink
When voltage when exceeding cut-in voltage, LED just can turn on and light.Conversely, LED be off non-luminous.Prior art this
Circuit makes the luminous efficiency of LED very low, or and power factor is very low, and only 0.5 about, or there is serious stroboscopic,
Stroboscopic index 100%, the light sending produces to the eyes of people to be stimulated and injures, and makes eyes have a kind of sensation like a hen on a hot girdle.
Content of the invention
The purpose of this utility model is：There is provided the LED lamp affixed to the ceiling that a kind of High Power Factor low frequency dodges, it not only solves
The problem of LED stroboscopic, improves electric power factor simultaneously.
The technical solution of the utility model is：
The input of bridge rectifier connects the output end of linear constant current circuit, and both ends of filter capacitor is whole with bridge-type respectively
The input of the output end of current circuit and linear constant current circuit connects, and LED/light source module and filter capacitor are connected in parallel.
Entity part is made up of mounting base, light source circuit board, lampshade.
Fixing spherical lampshade at circular mounting bottom edge, in mounting base, card is fixed with light source circuit board,
LED/light source module and drive circuit board are respectively fixed with light source circuit board, so that LED/light source module is equalized and be arranged in light source electricity
On the plate of road.
LED/light source module is to be made up of many low-voltage light sources, or the high-voltage LED module using COB encapsulation.
The beneficial effects of the utility model are：Drive without Switching Power Supply, the LED that high-voltage linear driving can be used directly inhales
Ceiling light, has the advantage of low cost, small volume, and on the premise of guarantee power factor is more than 0.9, effectively solving stroboscopic is asked
Topic, the bright light that LED sends is soft, and injury non-stimulated to eyes, saves electric energy.
Brief description
Fig. 1 is the utility model structure sectional view；
Fig. 2 is the utility model driving plate schematic block circuit diagram；
Fig. 3 is the utility model band current regulator diode circuit diagram；
Fig. 4 is the utility model band discrete component constant-current circuit figure.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is further described：
As shown in figure 1, wherein 1 being lampshade, 2 being fixed knob, 3 be cap nut, 4 be screw, 5 be mounting base, 6 being light
Source circuit plate, 7 be LED/light source module, 8 be drive circuit board.
As shown in Figure 2,3, 4, wherein LED be light emitting diode, D be commutation diode, CRD be current regulator diode, C be electricity
Hold.
As shown in figure 1, AC LED lamp affixed to the ceiling of the present utility model, including mounting base 5, light source circuit board 6, lampshade 1；
Described mounting base 5 is used for installing lampshade 1 and light source circuit board 6；Pass through screw 4 between mounting base 5 and light source circuit board 6
Connect with cap nut 3, mounting base 5 has with fixed knob 2, for fastening lampshades 1 in mounting base 5；Described light source electricity
Road plate 6, including LED/light source module 7, drive circuit 8；Described LED/light source module 7 can be to have many low-voltage light sources to constitute,
It can be the high-voltage LED module using COB encapsulation；Described drive circuit 8 is due to using circuit described in the utility model, volume
Less, it is placed directly within light source circuit board, eliminates installing space, simplify production procedure；Described bonnet, lampshade constitute an envelope
The entirety closed, described light source driving board is located among closing space.
Further, the driving circuit section above described driving plate 8 can be placed on same substrate with LED/light source module
On, the LED module with drive circuit can be defined as, now the hollow structure of radiator is vacant, described LED module directly with
Lamp holder 5 is electrically connected.
Described driving plate is electrically connected with LED/light source module, and a kind of preferred circuit of described driving plate is as shown in Figure 4.
From Figure 2 it can be seen that this circuit has 4 diodes D1, D2, D3, D4 and 1 electric capacity C1, current regulator diode CRD several
Part forms.Diode D1, D2, D3, D4 can be common commutation diode such as 1N4007 etc. or pressure enough
Schottky diode or other components and parts that can be achieved on identical function, this 4 diodes constitute rectification circuit, act on
It is pulsating dc voltage in the AC rectification that will input；Described current regulator diode can be constant current two pole of an integration packaging
Pipe or the discrete component linear constant current circuit being made up of multiple different electronic components, effect is to limit whole returning
The current peak on road, effective protection LED/light source occurs without over-current phenomenon avoidance, and limits the charging current of electric capacity C1 it is ensured that work(
Rate factor will not reduce because of electric capacity.
Further, as seen from Figure 3, circuit arrangement provided by the utility model, described rectification circuit and electric capacity
Between accessed current regulator diode CRD, this diode limits the total current flowing through electric capacity and LED/light source, so that electric capacity was charged
Charging current in journey is in a steady state value, if not limiting charging current, has very high charging spike arteries and veins in charging process
Punching, leads to power factor very low, and in preferred version provided by the utility model, charging current be limited in one constant
Value, so the charging process of electric capacity does not interfere with the power factor of whole bulb；Further, described electric capacity C1 is in voltage wave
When shape trough, LED/light source is discharged, maintain LED continuous illumination.By above operation principle, the bulb shown in the utility model
Stroboscopic index can be reduced within 20%, reaches the purpose of protect eyes on the premise of guarantee power factor is more than 0.9.
Further, it is illustrated in figure 4 the utility model another kind priority circuit embodiment.As shown in figure 4, by discrete unit
Part resistance R1, R2, the simple linear constant-current circuit of Zener diode D5, FET Q1 composition, to realize the perseverance shown in Fig. 2
The function of stream diode CRD.Circuit it is possible to further realize current regulator diode CRD function in Fig. 2 includes but is not limited to
Circuit shown in Fig. 4, any change not having substantive innovation belongs to protection domain of the present utility model.
Further, on the basis of the utility model scheme, overvoltage protection, overcurrent protection, overheat protector etc. can be increased
Protection device, in order to protect whole circuit part not affected by undesirable elements such as overvoltage, excessively stream, excess temperatures so that whole system
Work is more stable.
Claims (3)
1. the LED lamp affixed to the ceiling that a kind of High Power Factor low frequency dodges, is characterized in that：The input of bridge rectifier connects linearly permanent
The output end of current circuit, both ends of filter capacitor is connected with the output end of bridge rectifier and the input of linear constant current circuit respectively
Connect, LED/light source module and filter capacitor are connected in parallel.
2. the LED lamp affixed to the ceiling that a kind of High Power Factor low frequency dodges as claimed in claim 1, is characterized in that：At circular mounting bottom
Spherical lampshade is fixed by plate edge, and in mounting base, card is fixed with light source circuit board, solid respectively on light source circuit board
Surely there are LED/light source module and drive circuit board, so that LED/light source module is equalized and be arranged on light source circuit board.
3. the LED lamp affixed to the ceiling that a kind of High Power Factor low frequency dodges as claimed in claim 1, is characterized in that：LED/light source module is
It is made up of many low-voltage light sources, or the high-voltage LED module using COB encapsulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620788807.0U CN205987456U (en) | 2016-07-26 | 2016-07-26 | High power factor hangs down stroboscopic LED ceiling lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620788807.0U CN205987456U (en) | 2016-07-26 | 2016-07-26 | High power factor hangs down stroboscopic LED ceiling lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205987456U true CN205987456U (en) | 2017-02-22 |
Family
ID=58027680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620788807.0U Expired - Fee Related CN205987456U (en) | 2016-07-26 | 2016-07-26 | High power factor hangs down stroboscopic LED ceiling lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205987456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172764A (en) * | 2017-07-12 | 2017-09-15 | 上海晶丰明源半导体股份有限公司 | Input current limliting module, linear constant current system and method |
| CN112566320A (en) * | 2020-12-22 | 2021-03-26 | 安徽亮亮电子科技有限公司 | Method for realizing high power factor and low stroboflash |
-
2016
- 2016-07-26 CN CN201620788807.0U patent/CN205987456U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107172764A (en) * | 2017-07-12 | 2017-09-15 | 上海晶丰明源半导体股份有限公司 | Input current limliting module, linear constant current system and method |
| CN107172764B (en) * | 2017-07-12 | 2019-06-11 | 上海晶丰明源半导体股份有限公司 | Input current limliting module, linear constant current system and method |
| CN112566320A (en) * | 2020-12-22 | 2021-03-26 | 安徽亮亮电子科技有限公司 | Method for realizing high power factor and low stroboflash |
| CN112566320B (en) * | 2020-12-22 | 2023-02-10 | 安徽亮亮电子科技有限公司 | Method for realizing high power factor and low stroboflash |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20210726 |