CN201582638U - LED bypass protection circuit - Google Patents
LED bypass protection circuit Download PDFInfo
- Publication number
- CN201582638U CN201582638U CN2010200271161U CN201020027116U CN201582638U CN 201582638 U CN201582638 U CN 201582638U CN 2010200271161 U CN2010200271161 U CN 2010200271161U CN 201020027116 U CN201020027116 U CN 201020027116U CN 201582638 U CN201582638 U CN 201582638U
- Authority
- CN
- China
- Prior art keywords
- led
- light emitting
- protection circuit
- light
- bypass protection
- 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
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses an LED bypass protection circuit which comprises a plurality of light-emitting modules, wherein all the light-emitting modules are connected in series to form a lamp string, and each light-emitting module comprises at least two groups of LED light-emitting units connected in parallel. In the structure, at least two groups of LED light-emitting units are connected in parallel to form one light-emitting module, and the light-emitting modules are connected in series to form the lamp string; and therefore, when one group of LED light-emitting units of one light-emitting module is damaged, the normal operation of the other groups of LED light-emitting units can not be influenced, and meanwhile, the normal operation of the other light-emitting modules can not be influenced. The utility model has the advantages of energy saving, environmental friendliness and stability.
Description
[technical field]
The utility model relates to a kind of circuit, particularly relates to a kind of LED bypass protection circuit.
[background technology]
Because light emitting diode has advantages such as low power consumption, long-life, and the exploitation appearance in succession of the light emitting diode of present various coloured light quilt, the step that makes light emitting diode be used in lighting use advances a bit to accelerate.Although light emitting diode possesses primary condition and some advantage that is used in lighting use, but single light emitting diode still is not enough to deal with general illumination functions, therefore must use the light emitting diode of larger amt simultaneously, and identical with the principle of bulb connection, adopt series system to connect the lamp string, can strengthen voltage, if the conducting voltage of single light emitting diode is 1.8V, if be connected in series 5, this lamp string conducting voltage promptly becomes 9V, can directly drive by a 9V power supply, shown in accompanying drawing 1.But take series system to connect and have serious potential problems: promptly all be serially connected on the same electric power loop owing to all light emitting diodes, when wherein having arbitrary light emitting diode to damage, interrupt immediately in its loop, even other light emitting diode is as excellent as before, this lamp string still can't operate as normal.
From the above, when LED light string takes series system to connect, there is arbitrary light emitting diode damage promptly to cause the loop interruption to make the problem that whole lamp string can't operate as normal in the middle of must solving.
Subsequently; the national patent board web discloses a name and has been called a kind of utility model patent with lamp string of bypass protection; this patent announcement number is CN2682279Y; this utility model patent comprises a plurality of lamp groups; and become the lamp string by serial connection between the lamp group, described lamp group is again by a plurality of light emitting diodes serial connection, wherein on each lamp group and be connected to protective resistance; shown in accompanying drawing 2, above-mentioned lamp group can be formed by two to eight light emitting diode serial connections.Owing to adopted this technical scheme, it has bypass protection, and when the light emitting diode that damages, power supply still can pass through from protective resistance, keeps the unimpeded of whole lamp string loop, can not influence the normally luminous of whole lamp string.Though this technical scheme has solved and has above-mentionedly made the technical problem that whole lamp string can't operate as normal because of arbitrary light emitting diode wherein damages,, the technical program also has the following disadvantages.One, when wherein one group of lamp group damage, though other lamp group can not be affected, the lamp group of this damage can't be lighted, and will influence the decorative effect of ornament lamp like this, perhaps influence the brightness requirement of whole illumination; Its two owing to be to add a protective resistance on each group lamp group, this structure had both increased product cost, also wasted energy simultaneously.Because when power supply passed through each protective resistance, each protective resistance all had resistance, and electric energy will be lost in vain, the loss of this electric energy can't be converted into luminous energy or other useful energy.This design is not suitable for the social common objective of the present energy-saving and emission-reduction of advocating now.
[utility model content]
The technical problems to be solved in the utility model provides a kind of energy-saving and environmental protection, stable LED bypass protection circuit.
The utility model is to solve above-mentioned technical problem by following technical proposals: a kind of LED bypass protection circuit; comprise a plurality of light emitting modules; each light emitting module forms a lamp string by series connection, it is characterized in that described each light emitting module comprises the LED luminescence unit that has two groups of parallel connections at least.
The beneficial effects of the utility model are: since this structure be by at least by two groups of LED luminescence units light emitting modules that form in parallel, and connect by described light emitting module and to form a cluster of lamps, ornamental string.One group of LED luminescence unit of one of them light emitting module damages, also can not influence the operate as normal of the LED luminescence unit of these other groups of light emitting module, also can not influence simultaneously the operate as normal of other light emitting module, the utlity model has energy-saving and environmental protection, stable advantage.
Preferably, described every group of LED luminescence unit comprises a LED.
Preferably, described every group of LED luminescence unit comprises two LED of series connection.
Preferably, described each light emitting module is formed in parallel by three groups of LED luminescence units.
Preferably, described LED is an adopting surface mounted LED.
Preferably, described LED is a great power LED.
[description of drawings]
Below in conjunction with accompanying drawing the utility model is described in further details.
Fig. 1 is the circuit theory diagrams of first kind of specific embodiment of background technology.
Fig. 2 is the circuit theory diagrams of second kind of specific embodiment of background technology.
Fig. 3 is circuit theory diagrams of the present utility model.
Fig. 4 is another circuit theory diagrams of the present utility model.
Fig. 5 is another circuit theory diagrams of the present utility model.
Fig. 6 is applied in structural representation on the fluorescent tube for the utility model.
Fig. 7 is the structural representation that is applied on the street lamp of the present utility model.
[specific embodiment]
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Shown in accompanying drawing 3, the utility model comprises a plurality of light emitting modules 12, and each light emitting module 12 forms a lamp string 10 by series connection, and wherein, described each light emitting module 12 has the LED luminescence unit of two groups of parallel connections at least.
Described every group of LED luminescence unit comprises a LED D1, and be shown in Figure 3.The utility model also can be by one group of LED luminescence unit 13 of two LED D11, D12 series connection formation, be that light emitting module 12a is connected into two groups of LED luminescence units 13 by two LED D11, D12, be connected in parallel by two groups of LED luminescence units 13 again and form light emitting module 12a, form a lamp string 10a by a plurality of light emitting module 12a, shown in accompanying drawing 4, also can be to adopt three, four even one group of LED luminescence unit of more LED series connection formation.Shown in accompanying drawing 5, light emitting module 12b is formed in parallel by three groups of LED luminescence units, and every group of LED luminescence unit of present embodiment constitutes one group of light emitting module 12b by three LED d1, d2, d3 parallel connection, forms a lamp string 10b by a plurality of light emitting module 12b again.
Shown in accompanying drawing 6, fluorescent tube 16 comprises printing opacity fluorescent tube 20, be installed in power supply connector 19a, the 19b at printing opacity fluorescent tube 20 two ends respectively, one lamp string is installed in fluorescent tube 16, this lamp string is to be connected in parallel by two great power LEDs 18 to form one group of lamp group, being cascaded by a plurality of lamp groups forms a lamp string, and this lamp string is fixed in the described printing opacity fluorescent tube 20.
Shown in accompanying drawing 7, road lamp cap comprises a heat radiation module 22 and is installed in high-power LED bulb 18a on described heat radiation module 22 substrates, on the substrate of described heat radiation module 22, directly be printed with circuit board 21, the lamp base of described high-power LED bulb 18a is welded on the described circuit board 21 that is printed with, its lamp string is by two high-power LED bulb 18a, one group of lamp group in parallel, the lamp group of being made up of 12 groups of high-power LED bulb 18a is cascaded and forms a lamp string, with the corresponding connection of positive and negative electrode of positive and negative electrode with the power supply of lamp string.
Since this structure be by at least by two groups of LED luminescence units light emitting modules that form in parallel, and connect by described light emitting module and to form a cluster of lamps, ornamental string.One group of LED luminescence unit of one of them light emitting module damages, also can not influence the operate as normal of the LED luminescence unit of these other groups of light emitting module, also can not influence simultaneously the operate as normal of other light emitting module, the utlity model has energy-saving and environmental protection, stable characteristics.
Above for embodiment be not limited to be used on fluorescent tube and the street lamp, bypass protection circuit of the present utility model is used on the LED serial lamps and lanterns such as Projecting Lamp, garden lamp, stage lighting and all should belongs to protection domain of the present utility model.
The above is all so that the utility model conveniently to be described, in the spiritual category that does not break away from the utility model creation, the various simple covert and modification that those skilled in the art did of being familiar with this technology still belongs to protection domain of the present utility model.
Claims (6)
1. a LED bypass protection circuit comprises a plurality of light emitting modules, and each light emitting module forms a lamp string by series connection, and it is characterized in that: described each light emitting module comprises the LED luminescence unit that has two groups of parallel connections at least.
2. a kind of LED bypass protection circuit according to claim 1 is characterized in that: described every group of LED luminescence unit comprises a LED.
3. a kind of LED bypass protection circuit according to claim 1 is characterized in that: described every group of LED luminescence unit comprises two LED of series connection.
4. a kind of LED bypass protection circuit according to claim 1 is characterized in that: described each light emitting module is formed in parallel by three groups of LED luminescence units.
5. according to the described a kind of LED bypass protection circuit of the arbitrary claim of claim 1-4, it is characterized in that: described LED is an adopting surface mounted LED.
6. according to the described a kind of LED bypass protection circuit of the arbitrary claim of claim 1-4, it is characterized in that: described LED is a great power LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200271161U CN201582638U (en) | 2010-01-20 | 2010-01-20 | LED bypass protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200271161U CN201582638U (en) | 2010-01-20 | 2010-01-20 | LED bypass protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582638U true CN201582638U (en) | 2010-09-15 |
Family
ID=42724637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200271161U Expired - Fee Related CN201582638U (en) | 2010-01-20 | 2010-01-20 | LED bypass protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166202A1 (en) * | 2013-04-12 | 2014-10-16 | 台州真达灯饰有限公司 | Ever-lighting led lamp string of multiple groups in series |
-
2010
- 2010-01-20 CN CN2010200271161U patent/CN201582638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166202A1 (en) * | 2013-04-12 | 2014-10-16 | 台州真达灯饰有限公司 | Ever-lighting led lamp string of multiple groups in series |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201582638U (en) | LED bypass protection circuit | |
| CN200949765Y (en) | Neon lamp | |
| CN201599617U (en) | LED fluorescent lamp | |
| CN204592972U (en) | LED bulb and LED silk | |
| CN201072044Y (en) | Light emitting diode lighting lamp | |
| CN200955701Y (en) | Environment-protection energy-saved self-illuminating lamp or lamp box | |
| CN201462537U (en) | Novel LED miniature bulb string | |
| CN202813283U (en) | Equal-travel wiring structure of LED lamp tube/bar | |
| CN202647401U (en) | Light-emitting diode (LED) doorplate lamp | |
| CN207394755U (en) | A kind of driving chip cascades single line LED light | |
| CN202001912U (en) | Three-dimensional light emitting diode (LED) lamp structure | |
| CN201053595Y (en) | LED energy-saving daylight lamp | |
| CN201074788Y (en) | LED energy-saving lamp | |
| CN201774709U (en) | Control and drive circuit for semiconductor LED (light-emitting diode) meteor tube | |
| CN202274461U (en) | LED (Light-Emitting Diode) lamp and circuit thereof | |
| CN202118563U (en) | Led lamp | |
| CN203258445U (en) | Anti-breakage safety LED (Light Emitting Diode) illuminating lamp | |
| CN201964216U (en) | LED lamp tube | |
| CN202852563U (en) | LED light bar | |
| CN201851930U (en) | LED (light-emitting diode) fluorescent lamp | |
| CN202188319U (en) | Light-emitting diode (LED) light pipe with high lighting effect | |
| CN202216028U (en) | Large-power patch light-emitting diode (LED) module | |
| CN201836674U (en) | LED lighting lamp | |
| CN201081107Y (en) | Semiconductor light emitting diode intelligent color-changing lamp strip | |
| CN2861724Y (en) | Universal LED low voltage DC flashlight bulb |
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 |
Granted publication date: 20100915 Termination date: 20130120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |