LED street lamp heat dissipation device with multistage heat dissipation function
Technical Field
The invention relates to the technical field of LED lamps, in particular to an LED street lamp heat dissipation device with multistage heat dissipation.
Background
The LED lamp is an electroluminescent semiconductor material chip, is solidified on the bracket by using silver glue or white glue, is connected with the chip and the circuit board by using silver wires or gold wires, and is sealed by using epoxy resin at the periphery to play a role in protecting internal core wires. Generally, the street lamp is located outdoors and is affected by dust, ambient temperature and other factors, so that heat dissipation becomes an important factor affecting the service life of the LED street lamp.
However, most of the existing LED street lamps mainly adopt radiation heat dissipation, which results in poor heat dissipation efficiency of the existing LED street lamps and failure of timely heat dissipation, thus resulting in temperature rise inside the street lamps and greatly reducing the service life of the LED street lamps.
In order to solve the above problems, the inventor provides a heat dissipation device for an LED street lamp with multi-stage heat dissipation, which has the advantages of multi-stage heat dissipation, effective guarantee of heat dissipation, increase of the service life of the LED street lamp, and reduction of electric energy waste.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a LED street lamp heat abstractor that possesses multistage heat dissipation, includes bracing piece, casing, fixed plate, lamp holder, cooling tube, evaporating chamber, air duct, fin, fan, circuit board, controller, spout, bar magnet, push rod, spacing spring, touch multitouch, movable magnetic path, bimetallic strip.
The positions and the connection relations of the structures are as follows:
the outer part of the supporting rod is movably connected with a shell, the inner part of the shell is fixedly connected with a fixing plate, the bottom of the fixed plate is fixedly connected with a lamp cap, the interior of the shell is fixedly connected with a radiating pipe, the top of the radiating pipe is fixedly connected with an evaporation chamber, the interior of the shell is fixedly connected with an air duct, the outside of the air duct is fixedly connected with a radiating fin, the inside of the air duct is fixedly connected with a fan, the interior of the shell is fixedly connected with a circuit board, the interior of the shell is fixedly connected with a controller, a chute is arranged inside the controller, a magnetic bar is connected inside the chute in a sliding way, a push rod is fixedly connected at the left end of the magnetic bar, the limiting spring is sleeved outside the push rod, the contact block is fixedly connected to the left end of the push rod, the movable magnetic block is movably connected to the outside of the magnetic rod, and the bimetallic strip is fixedly connected to the outside of the movable magnetic block.
Preferably, the heat radiating pipe penetrates through the inside of the housing, and liquid ammonia is provided inside the heat radiating pipe.
Preferably, the evaporating chamber is provided with two, and two evaporating chambers are fixed connection respectively at the top at cooling tube both ends, and the evaporating chamber is located the top of casing, and two evaporating chambers all communicate with the cooling tube, and the outside of two evaporating chambers all is provided with the arris piece.
Preferably, the air duct penetrates through the housing, the cooling fins penetrate through the air duct, and the cooling fins are movably connected to the inside of the housing.
Preferably, the fan is provided with two, and two fans are fixed connection respectively at the inside both ends of ventiduct, and two fans all are connected with controller electric connection.
Preferably, two ends of the limiting spring are respectively and fixedly connected with the magnetic bar and the controller.
Preferably, the contact blocks are provided with two contact blocks, one contact block is fixedly connected with the push rod, the other contact block is fixedly connected in the controller, the two contact blocks are movably connected, and the two contact blocks are electrically connected with the controller.
Preferably, when the movable magnetic block rotates to be close to the magnetic rod, the movable magnetic block and the magnetic rod are connected in the same pole.
Preferably, the bimetallic strip is formed by connecting metals with different thermal expansion coefficients, a connecting rod is arranged at one end of the bimetallic strip and is fixedly connected with the movable magnetic block, and the other end of the bimetallic strip is fixedly connected inside the shell.
Advantageous effects
Compared with the prior art, the invention provides the LED street lamp heat dissipation device with multistage heat dissipation, which has the following beneficial effects:
1. this LED street lamp heat abstractor that possesses multistage radiating uses through the cooperation of cooling tube, evaporating chamber, air duct and fin to reach the radiating effect of LED street lamp, effectively guarantee the heat dissipation of LED lamp, the radiating effect is good, thereby effectively guarantee the life of LED lamp, and effectively utilize the cold and hot convection current of natural wind-force heat dissipation and ammonia, thereby effective energy saving reduces the energy loss.
2. This possess multistage radiating LED street lamp heat abstractor, through the fan, a controller, the spout, the bar magnet, the push rod, spacing spring, the feeler block, the cooperation of activity magnetic path and bimetallic strip is used, thereby realize the inside temperature monitoring of casing, and conveniently make the fan increase the inside air flow rate of ventiduct, thereby further increase radiating effect, reach multistage radiating effect, and avoid the fan to open for a long time, thereby the waste of piece reduction electric energy, effective energy saving, and effectively guarantee radiating effect, further effectively guarantee the life of LED street lamp.
Drawings
FIG. 1 is a schematic view of the overall connection of the structure of the present invention;
FIG. 2 is a schematic side view of the overall connection of the structure of the present invention;
FIG. 3 is a schematic view of the structure of the present invention showing the connection of the fixing plate, the lamp cap, the heat dissipating tube and the ventilation duct;
FIG. 4 is an enlarged view of the connection of the air duct, the heat sink and the fan in part A of the structure of FIG. 1;
FIG. 5 is an enlarged view of the connection of the controller, the sliding slot, the magnetic bar, the push rod, the limiting spring, the contact block, the movable magnetic block and the bimetallic strip in the part B of the structure of FIG. 1.
In the figure: 1. a support bar; 2. a housing; 3. a fixing plate; 4. a lamp cap; 5. a radiating pipe; 6. an evaporation chamber; 7. an air duct; 8. a heat sink; 9. a fan; 10. a circuit board; 11. a controller; 12. a chute; 13. a magnetic bar; 14. a push rod; 15. a limiting spring; 16. a contact block; 17. a movable magnetic block; 18. a bimetal strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an LED street lamp heat dissipation device with multi-stage heat dissipation includes a support rod 1, a housing 2, a fixing plate 3, a lamp cap 4, a heat dissipation pipe 5, an evaporation chamber 6, a ventilation duct 7, a heat dissipation fin 8, a fan 9, a circuit board 10, a controller 11, a chute 12, a magnetic bar 13, a push rod 14, a limiting spring 15, a contact block 16, a movable magnetic block 17, and a bimetallic strip 18.
The positions and the connection relations of the structures are as follows:
the outside swing joint of bracing piece 1 has casing 2, the inside fixedly connected with fixed plate 3 of casing 2, the bottom fixedly connected with lamp holder 4 of fixed plate 3, the inside fixedly connected with cooling tube 5 of casing 2, the top fixedly connected with evaporating chamber 6 of cooling tube 5, the inside fixedly connected with ventiduct 7 of casing 2, the outside fixedly connected with fin 8 of ventiduct 7, the inside fixedly connected with fan 9 of ventiduct 7, the inside fixedly connected with circuit board 10 of casing 2, the inside fixedly connected with controller 11 of casing 2, spout 12 has been seted up to controller 11's inside, the inside sliding connection of spout 12 has magnetic bar 13, the left end fixedly connected with push rod 14 of magnetic bar 13, spacing spring 15 has been cup jointed to push rod 14's outside, the left end fixedly connected with touch multitouch 16 of push rod 14, the outside swing joint of magnetic bar 13 has movable magnetic path 17, the outside fixedly connected with bimetallic strip 18.
Wherein:
a, the heat pipe 5 penetrates the inside of the housing 2, and liquid ammonia is provided inside the heat pipe 5.
b, evaporating chamber 6 is provided with two, and two evaporating chambers 6 fixed connection are at the top at 5 both ends of cooling tube respectively, and evaporating chamber 6 is located the top of casing 2, and two evaporating chambers 6 all communicate with cooling tube 5, and the outside of two evaporating chambers 6 all is provided with the arris piece.
c, the air duct 7 penetrates through the shell 2, the radiating fins 8 penetrate through the air duct 7, and the radiating fins 8 are movably connected inside the shell 2.
d, fan 9 is provided with two, and two fan 9 fixed connection are at the inside both ends of ventiduct 7 respectively, and two fan 9 all are connected with controller 11 electric connection.
e, two ends of the limiting spring 15 are respectively fixedly connected with the magnetic bar 13 and the controller 11.
f, two contact blocks 16 are arranged, one contact block 16 is fixedly connected with the push rod 14, the other contact block 16 is fixedly connected inside the controller 11, the two contact blocks 16 are movably connected, and the two contact blocks 16 are electrically connected with the controller 11.
And g, when the movable magnetic block 17 rotates to be close to the magnetic rod 13, the movable magnetic block 17 is connected with the magnetic rod 13 in the same pole.
h, the bimetallic strip 18 is formed by connecting metals with different thermal expansion coefficients, a connecting rod is arranged at one end of the bimetallic strip 18 and is fixedly connected with the movable magnetic block 17, and the other end of the bimetallic strip 18 is fixedly connected inside the shell 2.
Working process and principle, when in use, because the ventilation channel 7 runs through the shell 2, the radiating fins 8 run through the ventilation channel 7, and the radiating fins 8 are movably connected inside the shell 2, wind power passes through the ventilation channel 7, and the radiating effect is effectively ensured under the action of the radiating fins 8, meanwhile, because the radiating tubes 5 run through the inside of the shell 2, and liquid ammonia is arranged inside the radiating tubes 5, two evaporating chambers 6 are arranged, two evaporating chambers 6 are respectively and fixedly connected on the tops of two ends of the radiating tubes 5, and the evaporating chambers 6 are positioned on the top of the shell 2, the two evaporating chambers 6 are both communicated with the radiating tubes 5, and the edges are arranged outside the two evaporating chambers 6, so when the temperature inside the shell 2 rises, the liquid ammonia inside the radiating tubes 5 is heated and liquefied, and absorbs heat, and meanwhile, the air pressure difference is formed inside the radiating tubes 5, the ammonia flows upwards to enter the evaporating chambers 6, and because the edges are, thereby effectively increase heat radiating area, guarantee the radiating effect, make the ammonia temperature descend, cold and hot ammonia forms the convection current to reach heat exchange's effect, under the effect of air duct 7 and cooling tube 5, effectively guarantee the heat dissipation of LED lamp, the radiating effect is good, effectively guarantees the life of LED lamp, and effectively utilizes the cold and hot convection current of natural wind-force heat dissipation and ammonia, thereby effective energy saving reduces the energy loss.
When the temperature in the shell 2 continuously rises and the ventilation channel 7 and the radiating pipe 5 cannot perform normal radiating, because the controller 11 is electrically connected with the fans 9, two fans 9 are arranged, the two fans 9 are respectively and fixedly connected with two ends in the ventilation channel 7, the two fans 9 are both electrically connected with the controller 11, a sliding groove 12 is formed in the controller 11, the magnetic bar 13 is slidably connected in the sliding groove 12, the magnetic bar 13 is fixedly connected with a push rod 14, two ends of a limiting spring 15 are respectively and fixedly connected with the magnetic bar 13 and the controller 11, two contact blocks 16 are arranged, one contact block 16 is fixedly connected with the push rod 14, the other contact block 16 is fixedly connected in the controller 11, the two contact blocks 16 are movably connected, the two contact blocks 16 are electrically connected with the controller 11, when the movable magnetic block 17 rotates to be close to the magnetic bar 13, the movable magnetic block 17 is in homopolar connection with the magnetic bar 13, the bimetallic strip 18 is formed by connecting metals with different thermal expansion coefficients, one end of the bimetallic strip 18 is provided with a connecting rod which is fixedly connected with the movable magnetic block 17, and the other end of the bimetallic strip 18 is fixedly connected inside the shell 2, so that when the temperature rises, the bimetallic strip 18 is heated to rotate, the bimetallic strip 18 drives the movable magnetic block 17 to rotate, the movable magnetic block 17 is in homopolar connection with the magnetic rod 13, the magnetic rod 13 slides leftwards under the action of repulsion force, the magnetic rod 13 compresses the limiting spring 15 and pushes the push rod 14 to move leftwards, the two contact blocks 16 are in mutual contact, the controller 11 controls the fan 9 to start, the air flow rate inside the ventilation channel 7 is increased by the fan 9, the heat dissipation effect is further increased, the multi-stage heat dissipation effect is achieved, the fan 9 is prevented from being opened for a long time, the electric energy waste of the device is reduced, the energy is effectively saved, the service life of the LED street lamp is prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.