CN204962489U - High reliability LED street lamp - Google Patents
High reliability LED street lamp Download PDFInfo
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- CN204962489U CN204962489U CN201520751673.0U CN201520751673U CN204962489U CN 204962489 U CN204962489 U CN 204962489U CN 201520751673 U CN201520751673 U CN 201520751673U CN 204962489 U CN204962489 U CN 204962489U
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- led
- luminescence chip
- led luminescence
- ceramic substrate
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Abstract
The utility model discloses a high reliability LED street lamp, including cavity, module formula LED radiator, ceramic substrate, LED luminescence chip, the luminous lens of LED and constant current driver module, wherein, the cavity include the cavity and with the lower cavity of last cavity fixed coordination, the side of cavity is equipped with the air vent down, be equipped with mounting groove on the cavity down, has set firmly the luminous lens of module formula LED radiator, ceramic substrate, LED luminescence chip and LED among this mounting groove in proper order, emitting diode in the LED luminescence chip connects for the full cascaded structure of one way to the gold goal welds LED luminescence chip eutectic on ceramic substrate through being direct, the LED luminescence chip is connected with the constant current driver module electricity, just be equipped with first air current hole between every emitting diode on the LED luminescence chip, be equipped with the second air current hole corresponding to the LED luminescence chip on ceramic substrate. The utility model discloses it is not enough effectively to have improved LED street lamp heat dissipation, power drive unstability and the LED broken string risk of opening a way.
Description
Technical field
The utility model belongs to field of illuminating device, is specifically related to a kind of high reliability LED street lamp.
Background technology
As everyone knows, road lighting is the important component part of city illumination, and traditional street lamp often adopts high-pressure mercury lamp 360 degree of luminescences, and the loss of light is very huge, causes the huge waste of the energy.Current, global environment is going from bad to worse, and each state is all at development clean energy resource.And along with the rapid growth of national economy, China's energy supply and demand contradiction is outstanding day by day, supply of electric power comes into existence the situation of critical shortage, and energy-conservation is current urgent problem.Therefore, development of new is efficient, energy-conservation, the life-span is long, colour rendering index is high, the LED street lamp of environmental protection is of great significance the energy-conservation tool of city illumination.
Road lighting and people's productive life closely related, along with the quickening of Urbanization in China, LED street lamp with directional lighting, the advantage such as power consumption is low, drive characteristic good, fast response time, shock resistance are high, long service life, environmental protection enter into gradually people the visual field, become the energy-conserving light source of new generation most in the world with alternative conventional light source advantage, therefore, LED street lamp will become the optimal selection of roadway illumination and energy saving transformation.But it is not enough to there is heat radiation in existing LED street lamp, power drives instability and LED broken string open circuit risk.
Utility model content
The LED street lamp heat radiation existed for prior art is not enough, and the technical problem of power drives instability and LED broken string open circuit risk, the utility model provides a kind of high reliability LED street lamp.
To achieve these goals, the utility model adopts following technical scheme:
High reliability LED street lamp, comprises cavity, module type LED radiator, ceramic substrate, LED luminescence chip, LED light emission lens and constant-current driven module, wherein, described cavity comprises upper cavity and the lower chamber with upper cavity secure fit, the side of described lower chamber is provided with passage, described lower chamber is provided with installation groove, module type LED radiator is installed with in this installation groove, described ceramic substrate is arranged on above module type LED radiator, light emitting diode in described LED luminescence chip connects for the full cascaded structure of single channel, and directly LED luminescence chip eutectic is welded on ceramic substrate by gold goal, described LED light emission lens is arranged on above LED luminescence chip, described module type LED radiator, ceramic substrate, LED luminescence chip and LED light emission lens order are fixedly mounted in the installation groove of described lower chamber, described LED luminescence chip is electrically connected with constant-current driven module, and be provided with the first airflow hole between each light emitting diode on described LED luminescence chip, ceramic substrate is provided with the second airflow hole corresponding to LED luminescence chip.
The high reliability LED street lamp that the utility model provides, the first airflow hole is provided with between each light emitting diode on LED luminescence chip, and the second airflow hole be provided with on ceramic substrate corresponding to LED luminescence chip, airflow hole thus on LED luminescence chip and ceramic substrate defines gas channel, thus by module type LED radiator, the heat that the LED luminescence chip be arranged on ceramic substrate produces is disperseed, and exchanged by the passage of lower chamber side and the air of outside, thus the radiating effect of LED luminescence chip is effectively improved, improve the radiating efficiency of whole LED street lamp, LED luminescence chip is electrically connected with constant-current driven module, ensure that the stability of driving power, adopt the welding of gold goal direct eutectic to replace gold thread of the prior art to connect, thus avoid the risk because the LED that gold thread open circuit causes opens a way, thermal resistance is reduced to minimum simultaneously, and on the basis of eutectic welding, the full cascaded structure of single channel is coordinated (to be all together in series by all light emitting diodes in LED luminescence chip, form a single loop), any LEDs (i.e. light emitting diode) is short-circuited fault, all can not affect electric current and the voltage distribution of other LED, namely other LED according to normal mode of operation, thus can also extend the life cycle of module.
Further, described lower chamber is provided with groove, described upper cavity is provided with projection, the groove of described lower chamber and this protruding snap-fit engagement.
Further, be provided with water proof ring in the installation groove of described lower chamber, the projection of described water proof ring and upper cavity closely cooperates.
Further, described upper cavity is fixedly connected with described lower chamber by screw.
Further, described constant-current driven module selects SLM2842S booster type constant flow module.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the high reliability LED street lamp that the utility model provides.
In figure, 1, cavity; 11, upper cavity; 12, lower chamber; 121, passage; 122, water proof ring; 2, module type LED radiator; 3, ceramic substrate; 31, the second airflow hole; 4, LED luminescence chip; 41, the first airflow hole; 5, LED light emission lens; 6, constant-current driven module.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Please refer to shown in Fig. 1, the utility model provides a kind of high reliability LED street lamp, comprises cavity 1, module type LED radiator 2, ceramic substrate 3, LED luminescence chip 4, LED light emission lens 5 and constant-current driven module 6, wherein, described cavity 1 comprises upper cavity 11 and the lower chamber 12 with upper cavity 11 secure fit, the side of described lower chamber 12 is provided with passage 121, described lower chamber 12 is provided with installation groove, module type LED radiator 2 is installed with in this installation groove, described ceramic substrate 3 is arranged on above module type LED radiator 2, light emitting diode in described LED luminescence chip 4 connects for the full cascaded structure of single channel, and directly LED luminescence chip 4 eutectic is welded on ceramic substrate 3 by gold goal, described LED light emission lens 5 is arranged on above LED luminescence chip 4, described module type LED radiator 2, ceramic substrate 3, LED luminescence chip 4 and LED light emission lens 5 order are fixedly mounted in the installation groove of described lower chamber 12, described LED luminescence chip 4 is electrically connected with constant-current driven module 6, and be provided with the first airflow hole 41 between each light emitting diode on described LED luminescence chip 4, ceramic substrate 3 is provided with the second airflow hole 31 corresponding to LED luminescence chip 4.
The high reliability LED street lamp that the utility model provides, the first airflow hole is provided with between each light emitting diode on LED luminescence chip, and the second airflow hole be provided with on ceramic substrate corresponding to LED luminescence chip, airflow hole thus on LED luminescence chip and ceramic substrate defines gas channel, thus by module type LED radiator, the heat that the LED luminescence chip be arranged on ceramic substrate produces is disperseed, and exchanged by the passage of lower chamber side and the air of outside, thus the radiating effect of LED luminescence chip is effectively improved, improve the radiating efficiency of whole LED street lamp, LED luminescence chip is electrically connected with constant-current driven module, ensure that the stability of driving power, adopt the welding of gold goal direct eutectic to replace gold thread of the prior art to connect, thus avoid the risk because the LED that gold thread open circuit causes opens a way, thermal resistance is reduced to minimum simultaneously, and on the basis of eutectic welding, the full cascaded structure of single channel is coordinated (to be all together in series by all light emitting diodes in LED luminescence chip, form a single loop), any LEDs (i.e. light emitting diode) is short-circuited fault, all can not affect electric current and the voltage distribution of other LED, namely other LED according to normal mode of operation, thus can also extend the life cycle of module.
As specific embodiment, described lower chamber 12 is provided with groove, described upper cavity 11 is provided with projection, the groove of described lower chamber and this protruding snap-fit engagement.Particularly, as a kind of embodiment, the top edge of lower chamber arranges a circle groove, preset a circle at the lower limb of upper cavity protruding, the lower limb of described upper cavity snaps fit onto in this groove, thus realizes the snap-fit engagement of upper cavity and lower chamber.
As specific embodiment, the groove of described lower chamber 12 is equipped with water proof ring 122, described water proof ring 122 closely cooperates with the projection of upper cavity 11, namely can by arranging a water proof ring 122 at the groove periphery of lower chamber 12, then the projection of upper cavity 11 is snapped fit onto in the groove being equipped with water proof ring 122, water proof ring 122 and projection are closely cooperated more, prevents outside rainwater from invading.
As specific embodiment, described lower chamber 12 is provided with lower screwed hole, described upper cavity 11 is provided with upper screwed hole, the lower screwed hole of described lower chamber and this upper screwed hole are fixedly connected with by screw and coordinate.Particularly, as a kind of embodiment, lower chamber arranges lower screwed hole, upper cavity 11 arranges upper screwed hole, screw is extend in upper screwed hole through after the lower screwed hole of described lower chamber again, thus realize upper cavity and lower chamber be fixedly connected with cooperation.
As specific embodiment, described constant-current driven module selects SLM2842S booster type constant flow module.As a kind of embodiment, the LED street lamp that the utility model provides is solar street light, the maximum feature of solar LED street lamp be exactly it normally by battery-driven, and the Some features of battery needs to consider, such as battery only has the voltage of several regulation, 12V the most often uses, because it is the normal voltage of automobile batteries, 24V just needs with two series connection, and 36V is just more rare, for this reason, in solar LED street lamp, the constant-current driven module adopting booster type is often needed.For constant flow module, no matter be booster type or voltage-dropping type, only have when output voltage is closest to input voltage time, most effective.And output voltage is determined by load usually, be seldom change, so when input voltage changes within the scope of one, its efficiency also and then change.For SLM2842S booster type constant flow module, if power output is 27 watts, so step-up ratio is more close to 1, and efficiency is higher, and the temperature rise of chip is lower, and life and reliability is also higher.
These are only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing the utility model description and accompanying drawing content to do; directly or indirectly be used in the technical field that other are relevant, all in like manner within scope of patent protection of the present utility model.
Claims (5)
1. high reliability LED street lamp, is characterized in that, comprises cavity, module type LED radiator, ceramic substrate, LED luminescence chip, LED light emission lens and constant-current driven module, wherein, described cavity comprises upper cavity and the lower chamber with upper cavity secure fit, the side of described lower chamber is provided with passage, described lower chamber is provided with installation groove, module type LED radiator is installed with in this installation groove, described ceramic substrate is arranged on above module type LED radiator, light emitting diode in described LED luminescence chip connects for the full cascaded structure of single channel, and directly LED luminescence chip eutectic is welded on ceramic substrate by gold goal, described LED light emission lens is arranged on above LED luminescence chip, described module type LED radiator, ceramic substrate, LED luminescence chip and LED light emission lens order are fixedly mounted in the installation groove of described lower chamber, described LED luminescence chip is electrically connected with constant-current driven module, and be provided with the first airflow hole between each light emitting diode on described LED luminescence chip, ceramic substrate is provided with the second airflow hole corresponding to LED luminescence chip.
2. high reliability LED street lamp according to claim 1, is characterized in that, described lower chamber is provided with groove, and described upper cavity is provided with projection, the groove of described lower chamber and this protruding snap-fit engagement.
3. high reliability LED street lamp according to claim 2, is characterized in that, be provided with water proof ring in the installation groove of described lower chamber, the projection of described water proof ring and upper cavity closely cooperates.
4. high reliability LED street lamp according to claim 1, is characterized in that, described upper cavity is fixedly connected with described lower chamber by screw.
5. high reliability LED street lamp according to claim 1, is characterized in that, described constant-current driven module selects SLM2842S booster type constant flow module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751673.0U CN204962489U (en) | 2015-09-22 | 2015-09-22 | High reliability LED street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751673.0U CN204962489U (en) | 2015-09-22 | 2015-09-22 | High reliability LED street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204962489U true CN204962489U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520751673.0U Expired - Fee Related CN204962489U (en) | 2015-09-22 | 2015-09-22 | High reliability LED street lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204962489U (en) |
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2015
- 2015-09-22 CN CN201520751673.0U patent/CN204962489U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160113 Termination date: 20210922 |
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| CF01 | Termination of patent right due to non-payment of annual fee |