CN201416789Y - LED light fixture - Google Patents
LED light fixture Download PDFInfo
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- CN201416789Y CN201416789Y CN2009201567729U CN200920156772U CN201416789Y CN 201416789 Y CN201416789 Y CN 201416789Y CN 2009201567729 U CN2009201567729 U CN 2009201567729U CN 200920156772 U CN200920156772 U CN 200920156772U CN 201416789 Y CN201416789 Y CN 201416789Y
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Abstract
An LED light fixture is electrically connected with an AC power source. The LED light fixture includes a a male plug, a current limiting resistor, a lamp string set, a modulating device and a female plug. The LED light fixture can adjust the output voltage by the modulating device according to load; in another words, the LED light fixture is suitable for occasions with different load values and has the advantages of good applicability. Additionally, compared with the conventional transformer for power supply, the utility model has the advantage of small volume and convenient installation so asto increase the applicability of the LED light fixture.
Description
Technical field
The utility model is relevant with LED (light emitting diode), particularly a kind of LED light fixture.
Background technology
Existing LED lamp circuit structure, announce I257988 patent case as the tw Taiwan a kind of " LED light lamp and lamp string of synchronous light-emitting diode with synchronization pins " is provided, it consists predominantly of: a male plug and is connected in the lamp string group of described male plug; Wherein, see also this patent case Fig. 6 and Fig. 7, described male plug one end connects AC power, and the other end connects an external power source converter (Inverter) and lamp string group by power line, to convert alternating current to direct current, supply described direct current again and use to lamp string group.
Yet, have several in the above-mentioned lamp string group and be one another in series or LED in parallel, therefore, as desire to make these LED to keep high brightness, usually need be by applying external voltage, otherwise brightness is not enough, but the mode of this applied voltage will cause power wastage.In addition, because LED is a semiconductor element,, therefore on power, also can lose so can't utilize the positive half-wave and the negative half-wave of AC power simultaneously.
Moreover the aforementioned power source converter is quite a lot of because of element and solder joint, thus more easily break down, and cost is higher.And it is not, therefore quite take up space, and attractive in appearance because described power supply changeover device is arranged on the power line that exposes and volume is bigger.Announce M311833 patent case as the tw Taiwan a kind of " the LED decorated light string structure of improvement " is provided, it is through owing on the lamp string group a plurality of electric capacity and a plurality of resistance being set, to overcome the excessive problem of power supply changeover device volume; But integral body is still attractive in appearance inadequately, and makes difficulty.
In addition, with in-line lamp string group, if described a plurality of LED one of them be damaged and form circuit breaker, then all the other described a plurality of LED can't normal operation; What therefore, the design of the integrated circuit of LED light fixture showed is quite important.
To sum up institute is old, and existing LED light fixture has above-mentioned disappearance and haves much room for improvement.
Summary of the invention
Main purpose of the present utility model is to provide a kind of LED light fixture, and it can the adjusting output voltage has the preferable advantage of application according to the load that described LED light fixture bore is big or small.
For reaching above-mentioned purpose, a kind of LED light fixture provided by the present invention, it electrically connects an AC power; Described LED light fixture includes: a male plug has a first terminal and one second terminal; Described the first terminal and described second terminal electrically connect described AC power; One commutation diode (diode) is that input side electrically connects described the first terminal, so that described AC power is carried out rectification; One current-limiting resistance electrically connects described commutation diode outlet side; One lamp string group is by a plurality of light emitting diodes (1ight emittingdiode; LED) electrically be composed in series, and be revealed in the external world; Described lamp string group input side electrically connects described current-limiting resistance; One changing device electrically connects described second terminal and the described commutation diode outlet side of electrically connecting, so that described AC power is carried out rectification or filtering; One female plug has one the 3rd terminal and one the 4th terminal, plugs for the male plug of the corresponding specification in the external world; Described the 3rd terminal electrically connects described the first terminal, and described lamp string group outlet side is electrical with described the 3rd terminal and connects; Described the 4th terminal electrically connects described second terminal.
Thus, the utility model provides LED light fixture, the load size that it can be born according to described LED light fixture, and reach purpose according to the load regulation output voltage via described changing device; It is compared to existing person, and described LED light fixture can be applicable to the occasion of different loads value, has the preferable advantage of application.Moreover the utility model has the less and easy for installation advantage of volume, and then can improve the application of described LED light fixture compared to the existing transformer-supplied of using.
Description of drawings
Fig. 1 is the configuration diagram of the utility model first preferred embodiment;
Fig. 2 is the configuration diagram of the utility model second preferred embodiment;
Fig. 3 is the circuit diagram of the utility model second preferred embodiment;
Fig. 4 is the configuration diagram of the utility model the 3rd preferred embodiment;
Fig. 5 is the configuration diagram of the utility model the 4th preferred embodiment, mainly discloses the example of a plurality of lamp string groups.
Description of reference numerals: 10-LED light fixture; The 20-male plug; The 22-the first terminal; 24-second terminal; The 26-fuse; The 30-commutation diode; 32-electric capacity; 34-first diode; 36-resistance; Two times of voltage rectifying circuits of 38-; The 40-current-limiting resistance; 50-lamp string group; The 52-light emitting diode; The 60-changing device; 62-electric capacity; 64-resistance; The 70-female plug; 72-the 3rd terminal; 74-the 4th terminal; The 11-LED light fixture; The 20A-male plug; The 22A-the first terminal; 24A-second terminal; The 26A-fuse; The 30A-commutation diode; The 40A-current-limiting resistance; 50A-lamp string group; The 52A-light emitting diode; The 60A-changing device; The 70A-female plug; 72A-the 3rd terminal; 74A-the 4th terminal; 76-resistance; 78-second diode; 79-the 3rd diode; The 80-bridge rectifier; The 12-LED light fixture; The 20B-male plug; The 22B-the first terminal; 24B-second terminal; The 26B-fuse; The 30B-commutation diode; The 40B-current-limiting resistance; 50B-lamp string group; The 52B-light emitting diode; The 60B-changing device; 62B-first electric capacity; 64B-first resistance; The 70B-female plug; 72B-the 3rd terminal; 74B-the 4th terminal; 76B-resistance; The 78B-second diode 82-second electric capacity; 84-second resistance; The 13-LED light fixture; The 20C-male plug; 50C-lamp string group; 54-lamp string; The 70C-female plug;
The specific embodiment
Seeing also Fig. 1, be a kind of LED light fixture 10 that the utility model first preferred embodiment is provided, is to electrically connect an AC power (not shown); Described LED light fixture 10 includes: a male plug 20, a commutation diode 30, a current-limiting resistance 40, a lamp string group 50, a changing device 60 and a female plug 70.
Described male plug 20 has a first terminal 22, one second terminal 24 and two fuses 26; Described the first terminal 22 and described second terminal 24 electrically connect described AC power respectively; One of them electrically is series at described two fuses 26 between described the first terminal 22 and the described commutation diode 30, and another described fuse 26 electrically is series between described second terminal 24 and the described changing device 60.
Described commutation diode (diode) 30 input sides electrically connect described the first terminal 22; Electrical earlier series connection one first diode 34 of described commutation diode 30 outlet sides, electrically in parallel with an electric capacity 32 again; Described first diode, 34 input sides are described commutation diode 30 outlet sides of series connection electrically, and described first diode, 34 outlet sides are the described electric capacity 32 of series connection electrically; One resistance, 36 electrical described electric capacity 32 in parallel are to form one or two times of voltage rectifying circuits 38, in order to described AC power is carried out rectification.
Described current-limiting resistance 40 electrically connects described commutation diode 30 outlet sides indirectly.Described first diode 34 of electrically connecting between described current-limiting resistance 40 and the described commutation diode 30.
Described lamp string group 50 is by a plurality of light emitting diodes (1ight emitting diode; LED) 52 electrically be composed in series, and be revealed in the external world; Described lamp string group 50 input sides electrically connect described current-limiting resistance 40.
Described changing device 60 is a capacitor filter; Described changing device 60 has the electric capacity 62 of described commutation diode 30 outlet sides of an electric connection, and the resistance 64 of the described electric capacity 62 of an electrical series connection; Described resistance 64 is described second terminal 24 of series connection electrically, in order to current-limiting protection further to be provided.
Described female plug 70 has one the 3rd terminal 72 and one the 4th terminal 74, plugs for the male plug of the corresponding specification in the external world; Described the 3rd terminal 72 electrically connects described the first terminal 22, and described lamp string group 50 outlet sides are electrical with described the 3rd terminal 72 and connect; Described the 4th terminal 74 electrically connects described second terminal 24.
Via said structure, described LED light fixture 10 can provide the raising output voltage via described two times of voltage rectifying circuits 38, the big I of output voltage values changes via the capacitance that changes described electric capacity 32, to satisfy the demand of load voltage, to reach the purpose according to the load regulation output voltage.Moreover described LED light fixture 10 is except carrying out filtering with described two times of voltage rectifying circuits 38, and described changing device 60 can further improve filter effect, and then reaches the purpose of the Alternating Component that reduces output voltage.
Thus, the utility model provides LED light fixture 10, the load size that it can be born according to described LED light fixture 10, and reach purpose according to the load regulation output voltage via described changing device 60; It is compared to existing, and described LED light fixture 10 can be applicable to the occasion of different loads value, has the preferable advantage of application.Moreover the utility model has the less and easy for installation advantage of volume, and then can improve the application of described LED light fixture 10 compared to the existing transformer that uses.
See also Fig. 2 and Fig. 3, the LED light fixture 11 that the present invention's second preferred embodiment is provided is to electrically connect an AC power (not shown); Described LED light fixture 11 includes: a male plug 20A, a commutation diode 30A, a current-limiting resistance 40A, a lamp string group 50A, a changing device 60A and a female plug 70A.
Described male plug 20A has a first terminal 22A, one second terminal 24A and two fuse 26A; Described the first terminal 22A and the described second terminal 24A electrically connect described AC power respectively; One of them electrically is series at described two fuse 26A between described the first terminal 22A and the described commutation diode 30A, and another described fuse 26A electrically is series between described second terminal 24A and the described changing device 60A.
Described commutation diode 30A is that input side electrically connects described the first terminal 22A so that described AC power is carried out rectification;
Described current-limiting resistance 40A electrically connects described commutation diode 30A outlet side indirectly.
Described lamp string group 50A is by a plurality of light emitting diodes (light emitting diode; LED) 52A electrically is composed in series, and is revealed in the external world; Described lamp string group 50A input side electrically connects described current-limiting resistance 40A.
Described changing device 60A is a diode; Described changing device 60A input side is the described second terminal 24A of series connection electrically, and described changing device 60A outlet side is the described commutation diode 30A outlet side of series connection electrically.
Described female plug 70A has one the 3rd terminal 72A and one the 4th terminal 74A, plugs for the male plug of the corresponding specification in the external world.Described the 3rd terminal 72A electrically connects described the first terminal 22A, the resistance 76 of electrically connecting between described the 3rd terminal 72A and the described lamp string group 50A outlet side; One second diode, 78 input sides are the described resistance 76 of series connection electrically, and described second diode, 78 outlet sides are described the 3rd terminal 72A of series connection electrically.Described the 4th terminal 74A electrically connects the described second terminal 24A; One the 3rd diode, 79 input sides are the described resistance 76 of series connection electrically, and described the 3rd diode 79 outlet sides are described the 4th terminal 74A of series connection electrically.Thus, described commutation diode 30A, described changing device 60A, described second diode 78 and described the 3rd diode 79 form a bridge rectifier 80, in order to described AC power is carried out full-wave rectification.
Via said structure, described LED light fixture 11 can carry out full-wave rectification to described AC power via described bridge rectifier 80, it is compared to aforementioned first preferred embodiment, and present embodiment can provide preferable rectification effect, and then reaches the purpose of the Alternating Component that reduces output voltage.Moreover present embodiment can to cooperate the formed load size of described lamp string group 50A, have the characteristic according to the load regulation output voltage via the resistance value that changes described current-limiting resistance 40A and described resistance 76.Thus, present embodiment can reach the effect identical with first preferred embodiment, and another example is provided.
See also Fig. 4, the LED light fixture 12 that the present invention's the 3rd preferred embodiment is provided is to electrically connect an AC power (not shown); Described LED light fixture 12 includes: a male plug 20B, a commutation diode 30B, a current-limiting resistance 40B, a lamp string group 50B, a changing device 60B and a female plug 70B.
Described male plug 20B has a first terminal 22B, one second terminal 24B and two fuse 26B; Described the first terminal 22B and the described second terminal 24B electrically connect described AC power respectively; One of them electrically is series at described two fuse 26B between described the first terminal 22B and the described commutation diode 30B, and another described fuse 26B electrically is series between described second terminal 24B and the described changing device 60B.
Described commutation diode 30B is that input side electrically connects described the first terminal 22B so that described AC power is carried out rectification.
Described current-limiting resistance 40B electrically connects described commutation diode 30B indirectly) outlet side.
Described lamp string group 50B is by a plurality of light emitting diodes (light emitting diode; LED) 52B electrically is composed in series, and is revealed in the external world; Described lamp string group 50B input side electrically connects described current-limiting resistance 40B.
Described changing device 60B has one first electric capacity 62B and one first resistance 64B; The described first electric capacity 62B is described commutation diode 52B outlet side of series connection and the described second terminal 24B electrically; The described first resistance 64B described first electric capacity 62B electrically in parallel is in order to discharge to the described first electric capacity 62B.
Described female plug 70B has one the 3rd terminal 72B and one the 4th terminal 74B, plugs for the male plug of the corresponding specification in the external world; Described the 3rd terminal 72B electrically connects described the first terminal 22B, and a resistance 76B electrically connects between described the 3rd terminal 72B and the described lamp string group 50B outlet side; One second diode 78B input side is the described resistance 76B of series connection electrically, and the described second diode 78B outlet side is described the 3rd terminal 72B of series connection electrically.Described the 4th terminal 74B electrically connects the described second terminal 24B; One second electric capacity 82 is described second diode 78B input side of series connection and described the 4th terminal 74B electrically; One second resistance, 84 described second electric capacity 82 electrically in parallel are in order to discharge to described second electric capacity 82.
Via said structure, described LED light fixture 12 can carry out rectification to described AC power via described commutation diode 30B, and then reaches the purpose of the Alternating Component that reduces output voltage.Moreover present embodiment can to cooperate the formed load size of described lamp string group 50B, to satisfy the demand of load voltage, have the characteristic according to the load regulation output voltage via the capacitance that changes described first electric capacity 62B and described second electric capacity 82.
In addition, because described LED light fixture 12 is to adopt the mode of electric capacity to deacclimatize load, it uses resistance mode compared to aforementioned second preferred embodiment, and present embodiment can further improve temperature-rise effect, and then reduces the temperature of described LED light fixture 12 when running.Thus, present embodiment can reach the effect identical with first preferred embodiment, and another example is provided.
See also Fig. 5, the LED light fixture 13 that the present invention's the 4th preferred embodiment is provided, it is identical with first preferred embodiment, and described LED light fixture 13 includes equally: a male plug 20C, a diode is not shown in the figures, a current-limiting resistance is not shown in the figures, a lamp string group 50C, a changing device (not shown) and a female plug 70C.But its difference is: described lamp string group 50C is made of two sub-lamp strings 54 in parallel mutually; Each described sub-lamp string 54 1 end electrically connects described current-limiting resistance, and the other end then electrically connects described bridge rectifier.In the present embodiment, the quantity of described sub-lamp string 54 only for illustrating, is not as the restriction important document at this.
Via said structure, described LED light fixture 13 has the described LED light fixture 13 of raising and is using variational advantage to increase brightness of illumination; In the present embodiment, described lamp string group 50C is the circuit that is applicable to aforementioned preferred embodiment.Thus, present embodiment can reach the effect identical with first preferred embodiment, and an example again is provided.
More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection domain of the present utility model.
Claims (10)
1, a kind of LED light fixture is characterized in that, it electrically connects an AC power; Described LED light fixture includes:
One male plug has a first terminal and one second terminal; Described the first terminal and described second terminal electrically connect described AC power;
One commutation diode is that input side electrically connects described the first terminal, so that described AC power is carried out rectification;
One current-limiting resistance electrically connects described commutation diode outlet side;
One lamp string group is electrically to be composed in series by a plurality of light emitting diodes, and is revealed in the external world; Described lamp string group input side electrically connects described current-limiting resistance;
One changing device electrically connects described second terminal and the described commutation diode outlet side of electrically connecting, so that described AC power is carried out rectification or filtering; And
One female plug has one the 3rd terminal and one the 4th terminal, plugs for the male plug of the corresponding specification in the external world; Described the 3rd terminal electrically connects described the first terminal, and described lamp string group outlet side is electrical with described the 3rd terminal and connects; Described the 4th terminal electrically connects described second terminal.
2, according to the described LED light fixture of claim 1, it is characterized in that, electrical earlier series connection one first diode of described commutation diode outlet side, electrically in parallel with an electric capacity again; The described first diode input side is the described commutation diode outlet side of series connection electrically, and the described first diode outlet side is the described electric capacity of series connection electrically; One resistance is described electric capacity in parallel electrically, to form one or two times of voltage rectifying circuits.
According to the described LED light fixture of claim 2, it is characterized in that 3, described changing device is a capacitor filter; Described changing device has the electric capacity of the described commutation diode outlet side of an electric connection, and the resistance of the described electric capacity of an electrical series connection; Described resistance is described second terminal of series connection electrically.
According to the described LED light fixture of claim 1, it is characterized in that 4, described changing device is a diode; Described changing device input side is described second terminal of series connection electrically, and described changing device outlet side is the described commutation diode outlet side of series connection electrically.
5, according to the described LED light fixture of claim 4, it is characterized in that the resistance of electrically connecting between described lamp string group outlet side and described the 3rd terminal; One second diode input side is the described resistance of series connection electrically, and the described second diode outlet side is described the 3rd terminal of series connection electrically; One the 3rd diode input side is the described resistance of series connection electrically, and described the 3rd diode outlet side is described the 4th terminal of series connection electrically.
According to the described LED light fixture of claim 5, it is characterized in that 6, described commutation diode, described changing device, described second diode and described the 3rd diode form bridge rectifier.
According to the described LED light fixture of claim 1, it is characterized in that 7, described changing device has one first electric capacity and one first resistance; Described first electric capacity is described commutation diode outlet side of series connection and described second terminal electrically; Described first resistance described first electric capacity electrically in parallel.
8, according to the described LED light fixture of claim 7, it is characterized in that the resistance of electrically connecting between described lamp string group outlet side and described the 3rd terminal; One second diode input side is the described resistance of series connection electrically, and the described second diode outlet side is described the 3rd terminal of series connection electrically; One second electric capacity is described second diode input side of series connection and described the 4th terminal electrically; One second resistance described second electric capacity electrically in parallel.
9, according to the described LED light fixture of claim 1, it is characterized in that described male plug more includes two fuses; One of them electrically is series at described two fuses between described the first terminal and the described commutation diode, and another described fuse electrically is series between described second terminal and the described changing device.
According to the described LED light fixture of claim 1, it is characterized in that 10, described lamp string group is made of a plurality of sub-lamp strings parallel with one another; Each described sub-lamp string one end electrically connects described current-limiting resistance, and the other end electrically connects described bridge rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201567729U CN201416789Y (en) | 2009-06-16 | 2009-06-16 | LED light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201567729U CN201416789Y (en) | 2009-06-16 | 2009-06-16 | LED light fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416789Y true CN201416789Y (en) | 2010-03-03 |
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ID=41793211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201567729U Expired - Fee Related CN201416789Y (en) | 2009-06-16 | 2009-06-16 | LED light fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416789Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128238A1 (en) * | 2017-12-26 | 2019-07-04 | 浙江中宙光电股份有限公司 | Led filament lamp |
-
2009
- 2009-06-16 CN CN2009201567729U patent/CN201416789Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128238A1 (en) * | 2017-12-26 | 2019-07-04 | 浙江中宙光电股份有限公司 | Led filament lamp |
| US10890299B2 (en) | 2017-12-26 | 2021-01-12 | Zhejiang Z-Light Optoelectronics Co., Ltd. | LED filament lamp |
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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: 20100303 Termination date: 20120616 |