CN211406387U

CN211406387U - Anti-lightning-surge DOB light source and LED lamp

Info

Publication number: CN211406387U
Application number: CN201922394133.2U
Authority: CN
Inventors: 颜磊; 李良局; 唐双文; 李云刚; 陈飞
Original assignee: SHENZHEN RUNLITE TECHNOLOGY CO LTD
Current assignee: SHENZHEN RUNLITE TECHNOLOGY CO LTD
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-01
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a DOB light source and LED lamps and lanterns of anti thunderbolt surge, the DOB light source of anti thunderbolt surge includes aluminium base board, be provided with the surge protection module that is used for converting high voltage alternating current into low voltage alternating current on the aluminium base board; the rectifying and filtering module is used for converting the low-voltage alternating current into direct current required by the light source module; the constant current driving module is used for providing constant current for the light source module; a light source module for emitting LED light; the surge protection module, the rectifying and filtering module, the constant current driving module and the light source module are sequentially connected, so that the problem that the existing integrated light source has no lightning surge resistance function and cannot be applied outdoors is solved, the application range of the DOB light source is expanded, and the performance of the product is optimized.

Description

Anti-lightning-surge DOB light source and LED lamp

Technical Field

The utility model relates to a LED illumination field, in particular to DOB light source and LED lamps and lanterns of anti thunderbolt surge.

Background

The DOB light source is used as a high-power integrated surface light source, is a high-efficiency integrated surface light source technology in which an LED chip is directly attached to a mirror metal substrate with high luminous efficiency, and provides a support concept in the technology at the moment, and the technology has no electroless plating, reflow soldering and surface mounting processes, can reduce the processes by nearly one third, can save the cost by one third, and has good application prospect.

At present, most outdoor lamps and lanterns use the light source and drive power supply to keep apart the assembly mode, need dispose the power alone, and most linear light source module can only be used for indoor, is unsuitable for outdoor use. And the integrated light source made by the linear scheme is used outdoors, has no anti-surge protection, low anti-lightning performance, easy burning and short service life.

Thus, the prior art has yet to be improved and enhanced.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, an object of the present invention is to provide a DOB light source and LED lamp of anti thunderbolt surge to solve the function that current integrated light source does not have anti thunderbolt surge, and can't be applied to outdoor problem.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a DOB light source of anti lightning surge, includes aluminium base board, be provided with on the aluminium base board:

the surge protection module is used for converting high-voltage alternating current into low-voltage alternating current;

the rectifying and filtering module is used for converting the low-voltage alternating current into direct current required by the light source module;

the constant current driving module is used for providing constant current for the light source module;

a light source module for emitting LED light;

the surge protection module, the rectification filter module, the constant current driving module and the light source module are connected in sequence.

In the DOB light source of anti lightning surge, the surge protection module includes:

the primary surge protection unit is used for converting the high-voltage alternating current into first alternating current;

the secondary surge protection unit is used for converting the first alternating current into a second alternating current;

the three-stage surge protection unit is used for converting the second alternating current into low-voltage alternating current;

the first-stage surge protection unit, the second-stage surge protection unit and the third-stage surge protection unit are sequentially connected.

In the DOB light source for resisting lightning surge, the primary surge protection unit comprises a first discharge tube, a second discharge tube, a first piezoresistor and a second piezoresistor; one end of the first discharge tube is connected with a live wire end of an alternating current power supply, the other end of the first discharge tube is connected with one end of the first piezoresistor, the other end of the first piezoresistor and one end of the second piezoresistor are both connected with a zero line end of the alternating current power supply, the other end of the second piezoresistor is connected with one end of the second discharge tube, and the other end of the second discharge tube is grounded.

In the DOB light source of anti lightning surge, second grade surge protection unit includes protective tube and third piezo-resistor, the one end of protective tube is connected alternating current power supply's live wire end, the other end of protective tube is connected third piezo-resistor's one end with tertiary surge protection unit, third piezo-resistor's the other end is connected the one end of second discharge tube.

In the DOB light source of anti lightning surge, tertiary surge protection unit includes the inductance, the 1 st foot of inductance is connected the other end of protective tube, the 2 nd foot of inductance is connected the one end of second discharge tube, the 3 rd foot and the 4 th foot of inductance are all connected rectification filter module.

In the DOB light source for resisting lightning surge, the rectifier and filter module comprises a rectifier bridge, a capacitor and a resistor; the No. 1 pin of the rectifier bridge is connected with the No. 3 pin of the inductor, the No. 2 pin of the rectifier bridge is connected with the light source module, the No. 3 pin of the rectifier bridge is connected with the No. 4 pin of the inductor, and the No. 4 pin of the rectifier bridge is connected with one end of the capacitor, one end of the resistor and the constant current driving module; the other end of the capacitor and the other end of the resistor are connected with the light source module.

In the anti-lightning surge DOB light source, the light source module comprises an LED lamp string, the LED lamp string comprises a plurality of LED chips connected in series, the input end of the LED lamp string is connected with the constant current driving module, and the output end of the LED lamp string is connected with the No. 2 pin of the rectifier bridge.

An LED luminaire comprising a DOB light source as described above that is resistant to lightning surges.

Compared with the prior art, the utility model provides a DOB light source and LED lamps and lanterns of anti thunderbolt surge, the DOB light source of anti thunderbolt surge includes aluminium base board, be provided with the surge protection module that is used for converting high voltage alternating current into low voltage alternating current on the aluminium base board; the rectifying and filtering module is used for converting the low-voltage alternating current into direct current required by the light source module; the constant current driving module is used for providing constant current for the light source module; a light source module for emitting LED light; the surge protection module, the rectifying and filtering module, the constant current driving module and the light source module are sequentially connected, so that the problem that the existing integrated light source has no lightning surge resistance function and cannot be applied outdoors is solved, the application range of the DOB light source is expanded, and the performance of the product is optimized.

Drawings

Fig. 1 is a block diagram of a DOB light source for lightning surge resistance according to the present invention;

fig. 2 is the utility model provides a DOB light source's of anti lightning surge circuit schematic diagram.

Detailed Description

The utility model provides a DOB light source and LED lamps and lanterns of anti thunderbolt surge to solve the function of the current integration light source no anti thunderbolt surge, and can't be applied to outdoor problem.

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the following description of the present invention will refer to the accompanying drawings and illustrate embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the utility model provides a DOB light source of anti lightning surge includes aluminium base board, be provided with surge protection module 100, rectification filter module 200, constant current drive module 300 and light source module 400 on the aluminium base board, surge protection module 100, rectification filter module 200, constant current drive module 300 and light source module 400 connect gradually.

Specifically, the surge protection module 100 is configured to convert a high-voltage alternating current into a low-voltage alternating current and output the low-voltage alternating current to the rectifying and filtering module 200, the rectifying and filtering module 200 is configured to convert the low-voltage alternating current into a direct current required by the light source module 400, the constant current driving module 300 is configured to provide a constant current for the light source module 400, and the light emitting module is configured to emit LED light; meanwhile, the DOB light source can be applied outdoors, the application range of the DOB light source is expanded, and the performance of the product is optimized.

Further, referring to fig. 2, the surge protection module 100 includes a primary surge protection unit 110, a secondary surge protection unit 120, and a tertiary surge protection unit 130, where the primary surge protection unit 110, the secondary surge protection unit 120, and the tertiary surge protection unit 130 are connected in sequence.

Specifically, the primary surge protection unit 110 is configured to convert the high-voltage alternating current into a first alternating current, the secondary surge protection unit 120 is configured to convert the first alternating current into a second alternating current, and the tertiary surge protection unit 130 is configured to convert the second alternating current into a low-voltage alternating current; when lightning strikes occur, when high voltage is generated and is led into a power supply through a power grid, the primary surge protection unit 110 primarily releases high-voltage energy, the part which is not fully released is released by the secondary surge protection unit 120, and then a circuit behind the circuit is protected from being damaged, the tertiary surge protection unit 130 is used for further blocking the high voltage, so that electric energy input to the rectification filter module 200 subsequently is required low-voltage alternating current, the high-voltage electric energy is released step by arranging the multistage protection units, and then the DOB light source is ensured to receive the required electric energy, the electricity safety is ensured, and meanwhile, the application range of the integrated light source is expanded.

Further, the primary surge protection unit 110 includes a first discharge tube Q1, a second discharge tube Q2, a first varistor MOV1 and a second varistor MOV 2; one end of the first discharge tube Q1 is connected with a live wire end of an alternating current power supply, the other end of the first discharge tube Q1 is connected with one end of the first piezoresistor MOV1, the other end of the first piezoresistor MOV1 and one end of the second piezoresistor MOV2 are both connected with a zero wire end of the alternating current power supply, the other end of the second piezoresistor MOV2 is connected with one end of the second discharge tube Q2, and the other end of the second discharge tube Q2 is grounded; when a lightning surge of 4KV exists, the high-energy voltage is released through the characteristics of the gas discharge tube and the piezoresistor by jointly dividing the voltage through the gas discharge tube, the first piezoresistor MOV1 and the second piezoresistor MOV2, and the voltage which is not fully released can be released through the rear secondary surge protection unit 120, so that the DOB light source is protected step by step.

Further, the secondary surge protection unit 120 comprises a fuse tube F1 and a third voltage dependent resistor MOV3, one end of the fuse tube F1 is connected to the live wire end of the ac power source, the other end of the fuse tube F1 is connected to one end of the third voltage dependent resistor MOV3 and the tertiary surge protection unit 130, and the other end of the third voltage dependent resistor MOV3 is connected to one end of the second discharge tube Q2; the gas discharge tube and the first varistor MOV1 and the second varistor MOV2 do not release enough voltage to further release through the fuse F1 and the third varistor MOV3, when the voltage applied to the two ends of the third varistor MOV3 exceeds the working voltage, the resistance value of the third varistor MOV3 is reduced, so that high-voltage energy is consumed on the varistor, and the following circuit is protected from being burnt; the fuse tube F1 is used for fusing when the current is too large, and protecting internal electrical elements from being burnt out.

Further, the three-level surge protection unit 130 includes an inductor L1, the 1 st pin of the inductor L1 is connected to the other end of the fuse F1, the 2 nd pin of the inductor L1 is connected to one end of the second discharge tube Q2, the 3 rd pin and the 4 th pin of the inductor L1 are both connected to the rectifying and filtering module 200, and the inductor L1 is mainly used for blocking high voltage and high current from instantaneously flowing to a circuit behind, so that through three-level surge protection, surge high voltage is absorbed step by step, impact of lightning high surge voltage on the LED lamp is reduced, the service life of the LED lamp is prolonged, and the original high-cost outdoor lamp is replaced.

Further, the rectifier filter module 200 includes a rectifier bridge DB1, a capacitor C1 and a resistor R1; the 1 st pin of the rectifier bridge DB1 is connected to the 3 rd pin of the inductor L1, the 2 nd pin of the rectifier bridge DB1 is connected to the light source module 400, the 3 rd pin of the rectifier bridge DB1 is connected to the 4 th pin of the inductor L1, and the 4 th pin of the rectifier bridge DB1 is connected to one end of the capacitor C1, one end of the resistor R1, and the constant current driving module 300; the other end of the capacitor C1 and the other end of the resistor R1 are connected to the light source module 400, the rectifier bridge DB1 is configured to rectify the low-voltage ac and then provide the dc power required by the DOB light source, and the capacitor C1 performs a filtering function to filter the dc power, so as to ensure that the light source module 400 obtains stable power.

Further, the constant current driving module 300 includes a plurality of driving chips, each of the driving chips is connected in parallel, in this embodiment, the model of the driving chip is SM2082, and of course, the driving chips having the same function may be selected in other embodiments, which is not limited in this respect; the constant current driving module 300 provides a constant current for the light source module 400, so as to realize the constant current driving of the light source module 400.

Further, the light source module 400 includes an LED light string, the LED light string includes a plurality of LED chips connected in series, an input end of the LED light string is connected to the constant current driving module 300, and an output end of the LED light string is connected to the No. 2 pin of the rectifier bridge DB1, in this embodiment, the number of the LED chips is 28, and the LED chips are all blue light chips, and under the action of the driving current, the fluorescence is excited to emit the required white light; of course, in other embodiments, the number of the LED chips in the light source module 400 can also be set according to practical situations, which is not limited by the present invention.

The utility model also provides a LED lamp, LED lamp includes as above the DOB light source of anti lightning surge, because the above has carried out detailed description to the DOB light source of this anti lightning surge, no longer repeated here.

In summary, the utility model provides a DOB light source and LED lamps and lanterns of anti thunderbolt surge, the DOB light source of anti thunderbolt surge includes aluminium base board, be provided with the surge protection module that is used for converting high voltage alternating current into low voltage alternating current on the aluminium base board; the rectifying and filtering module is used for converting the low-voltage alternating current into direct current required by the light source module; the constant current driving module is used for providing constant current for the light source module; a light source module for emitting LED light; the surge protection module, the rectifying and filtering module, the constant current driving module and the light source module are sequentially connected, so that the problem that the existing integrated light source has no lightning surge resistance function and cannot be applied outdoors is solved, the application range of the DOB light source is expanded, and the performance of the product is optimized.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. The DOB light source is characterized by comprising an aluminum substrate, wherein the aluminum substrate is provided with:

the light source module is used for emitting LED light;

2. A DOB light source resistant to lightning surges according to claim 1, wherein said surge protection module comprises:

the three-stage surge protection unit is used for converting the second alternating current into the low-voltage alternating current;

3. A DOB light source resistant to lightning surges according to claim 2, wherein said primary surge protection unit comprises a first discharge tube, a second discharge tube, a first varistor and a second varistor; one end of the first discharge tube is connected with a live wire end of an alternating current power supply, the other end of the first discharge tube is connected with one end of the first piezoresistor, the other end of the first piezoresistor and one end of the second piezoresistor are both connected with a zero line end of the alternating current power supply, the other end of the second piezoresistor is connected with one end of the second discharge tube, and the other end of the second discharge tube is grounded.

4. A DOB light source against lightning surges according to claim 3, wherein said secondary surge protection unit comprises a fuse and a third voltage dependent resistor, a first end of said fuse is connected to a live wire end of said AC power supply, a second end of said fuse is connected to one end of said third voltage dependent resistor and said tertiary surge protection unit, and the other end of said third voltage dependent resistor is connected to one end of said second discharge tube.

5. The DOB light source resisting lightning surges according to claim 4, wherein the three-stage surge protection unit comprises an inductor, a 1 st pin of the inductor is connected with the other end of the protective tube, a 2 nd pin of the inductor is connected with one end of the second discharge tube, and a 3 rd pin and a 4 th pin of the inductor are both connected with the rectifying and filtering module.

6. A DOB light source resistant to lightning surges according to claim 5, characterized in that said rectifying and filtering module comprises a rectifying bridge, a capacitor and a resistor; the No. 1 pin of the rectifier bridge is connected with the No. 3 pin of the inductor, the No. 2 pin of the rectifier bridge is connected with the light source module, the No. 3 pin of the rectifier bridge is connected with the No. 4 pin of the inductor, and the No. 4 pin of the rectifier bridge is connected with one end of the capacitor, one end of the resistor and the constant current driving module; the other end of the capacitor and the other end of the resistor are connected with the light source module.

7. The DOB light source capable of resisting lightning surges according to claim 6, wherein the light source module comprises an LED light string, the LED light string comprises a plurality of LED chips connected in series, the input end of the LED light string is connected with the constant current driving module, and the output end of the LED light string is connected with the No. 2 pin of the rectifier bridge.

8. An LED luminaire comprising a DOB light source resistant to lightning surges as claimed in any one of claims 1 to 7.