CN211502707U

CN211502707U - Electric focusing device for lamp

Info

Publication number: CN211502707U
Application number: CN202020018436.4U
Authority: CN
Inventors: 杜书涛; 陈志燕
Original assignee: Wuhan Kemled Technology Co ltd
Current assignee: Wuhan Kemled Technology Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-15
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses an electronic focusing device of lamps and lanterns, include the casing and set firmly the lamp plate in the casing, the LED lamp has set firmly on the lamp plate, lamp plate fixed surface is equipped with heat-conducting plate I, heat-conducting plate I keeps away from one side of lamp plate is equipped with heat-conducting plate II, heat-conducting plate I and heat-conducting plate II parallel arrangement, and leave the clearance between heat-conducting plate I and the heat-conducting plate II, lie in on the casing be equipped with the air intake between heat-conducting plate I and the heat-conducting plate II, be equipped with the gas outlet on the heat-conducting plate II, be equipped with a plurality of fin between heat-conducting plate I and the heat-conducting plate II, it is adjacent the crisscross setting of fin, keep away from in the casing the fixed fan. The device can completely utilize cold air outside the lamp to dissipate heat of the LED lamp.

Description

Electric focusing device for lamp

Technical Field

The utility model belongs to the technical field of lamps and lanterns, more specifically relates to an electronic focusing device of lamps and lanterns.

Background

The spotlight is light collected by using a condenser lens or a reflector, and a spot light type of a reflector lamp is simple, has strong illumination and narrow illumination range, is convenient to intensively illuminate towards a specific area in a scene, and is a lamp which is most used in a studio and a studio. LED spotlights use LEDs as light sources, which are solid-state semiconductor devices capable of converting electrical energy into visible light, which can directly convert electricity into light. The heart of the LED is a semiconductor wafer, one end of the wafer is attached to a fixed seat, the other end of the wafer is a negative electrode, the other end of the wafer is connected with a positive electrode of a power supply, the whole wafer is packaged by epoxy resin, one part of the LED lamp is converted into a light source when being used, one part of the LED lamp is converted into heat energy, and the temperature of the LED lamp can rise at the moment, so that the problems of reduction of the luminous efficiency of a chip, reduction of the lasing efficiency of fluorescent powder and the like are. Therefore, the heat dissipation of the LED lamp plays a crucial role in the LED lamp, but the existing LED lamp has poor heat dissipation effect and is difficult to quickly dissipate the heat of the LED lamp.

CN209295066U discloses a passive LED lamp with an air convection heat dissipation structure, the surface of the lamp panel is fixedly connected with a heat conducting plate, the surface of the heat conducting plate near the edge thereof is fixedly connected with a large heat sink, the surface of the heat conducting plate near the middle thereof is fixedly connected with a small heat sink, the surface of the ventilator near one end of the lampshade is provided with an air inlet, and the inner surface of the ventilator is fixedly connected with an electric fan. The device drives the outside colder air of draft tube through the air intake and gets into the inside of draft tube through setting up the electric fan to carry out the heat exchange with big fin and little fin, take away big fin and little fin surface heat, reach the radiating effect to the lamp plate. However, cold air from the inside of the ventilating duct can directly enter the electric fan along the inner wall of the ventilating duct and is discharged from the left side of the ventilating duct, so that heat of the large radiating fins and the small radiating fins cannot be sufficiently dissipated, and the heat dissipation effect of the passive LED lamp is poor.

Disclosure of Invention

The utility model aims at the problem that prior art exists, provide an electronic focusing device of lamps and lanterns, can utilize the outside cold air of lamps and lanterns completely, to the heat dissipation of LED lamp, increase the time of air and fin contact simultaneously, improve the radiating efficiency.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides an electronic focusing device of lamps and lanterns, includes the casing and sets firmly the lamp plate in the casing, the LED lamp has set firmly on the lamp plate, lamp plate fixed surface is equipped with heat-conducting plate I, heat-conducting plate I keeps away from one side of lamp plate is equipped with heat-conducting plate II, heat-conducting plate I and heat-conducting plate II parallel arrangement, and leave the clearance between heat-conducting plate I and the heat-conducting plate II, lie in on the casing be equipped with the air intake between heat-conducting plate I and the heat-conducting plate II, be equipped with the gas outlet on the heat-conducting plate II, be equipped with a plurality of fin between heat-conducting plate I and the heat-conducting plate II, it is adjacent the fin sets up in the staggered manner, keep away.

When the device is used, heat generated by the LED lamp is transferred to the heat conducting plate I and the radiating fins connected with the heat conducting plate I, the fan is opened, air enters from the air inlet, flows forwards along the air path channel formed by the radiating fins arranged in a staggered mode and flows out from the air outlet, cold air takes away heat on the heat conducting plate I and the radiating fins connected with the heat conducting plate I in the flowing process and is discharged from the air outlet, meanwhile, part of heat carried by cold air is transferred to the heat conducting plate II and the radiating fins connected with the heat conducting plate II and is discharged to one side of the fan through the heat conducting plate II and is radiated from the radiating holes, cold air outside the lamp is completely utilized for radiating the LED lamp, meanwhile, the cold air flows in the air path formed by the radiating fins, the contact time of the air and the radiating fins is.

Further, the place ahead of lamp plate is equipped with focusing device, focusing device including install in the casing and with the casing slides complex convex lens, convex lens's bottom links to each other with the connecting rod, the connecting rod runs through the bottom of casing and with casing sliding connection, the tip cover of connecting rod locate on the threaded rod with the threaded rod spiro union, the threaded rod is rotated by motor drive. The motor is used for driving the threaded rod to rotate, and then drives the connecting rod to make linear motion on the threaded rod.

Furthermore, the top of the convex lens is connected with the sliding block, a sliding rail is arranged on the inner wall of the shell, and the sliding block slides on the sliding rail.

Furthermore, a displacement sensor is arranged on the inner wall of the shell in front of the convex lens. And measuring the distance between the LED lamp and the irradiation target by using the displacement sensor.

Further, a lampshade is fixedly mounted on the outer side of the shell. And protecting the convex lens in the focusing device.

Furthermore, the air inlet is provided with a dust screen. Dust in the cold air is prevented from entering the housing.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses the device is through the fin that is equipped with air intake and crisscross setting between heat-conducting plate I and heat-conducting plate II, can utilize the outside cold air of lamps and lanterns completely, to the heat dissipation of LED lamp, the cold air flows in the gas circuit that the fin formed simultaneously, has increased the time of air with the fin contact, improves the radiating efficiency.

Drawings

Fig. 1 is a cross-sectional view of an electric focusing device for a lamp according to embodiment 1;

FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;

in the figure: 1. a housing; 2. a convex lens; 3. a lamp panel; 4. a heat conducting plate I; 5. a heat conducting plate II; 6. an air inlet; 7. a heat sink; 8. an air outlet; 9. a fan; 10. a connecting rod; 11. a motor; 12. a threaded rod; 13. a slider; 14. a slide rail; 15. a displacement sensor; 16. a lamp shade; 17. a dust screen.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

An electronic focusing device of lamps and lanterns as shown in fig. 1-2, include casing 1 and set firmly lamp plate 3 in casing 1, the LED lamp has set firmly on the lamp plate 3, the LED lamp is connected with the power electricity, lamp plate 3 fixed surface is equipped with heat-conducting plate I4, heat-conducting plate I4 is kept away from one side of lamp plate 3 is equipped with heat-conducting plate II5, heat-conducting plate I4 and heat-conducting plate II5 parallel arrangement, and leave the clearance between heat-conducting plate I4 and the heat-conducting plate II5, lie in on the casing 1 position between heat-conducting plate I4 and the heat-conducting plate II5 is equipped with 2

air intakes

6, 2 air intake 6 sets up along the horizontal axis axial symmetry of casing 1, be equipped with gas outlet 8 on the heat-conducting plate II5, be equipped with a plurality of fin 7 between heat-conducting plate I4 and the heat-conducting plate II5, it is adjacent fin 7 sets up crisscross, a gas path channel is formed by enclosing the radiating fins 7, the heat conducting plate I4, the heat conducting plate II5 and the inner wall of the shell 1, cold air enters from 2 air inlets 6 and flows out from an air outlet 8 under the guidance of the radiating fins 7, a fan 9 is fixedly arranged on one side of the shell 1 far away from the heat conducting plate II5, and a plurality of radiating holes are formed in the shell 1 behind the fan 9;

the place ahead of lamp plate 3 is equipped with focusing device, focusing device including install in casing 1 and with casing 1 complex convex lens 2 that slides, convex lens 2's bottom links to each other with connecting rod 10, connecting rod 10 run through casing 1's bottom and with casing 1 sliding connection, the tip cover of connecting rod 10 locate on the threaded rod 12 with threaded rod 12 spiro union, threaded rod 12 is rotated by motor 11 drive, specifically, the bottom of casing 1 is equipped with the through-hole and is used for holding connecting rod 10, connecting rod 10 passes the through-hole and the tip cover of connecting rod 10 locate on threaded rod 12 with threaded rod 12 spiro union, the outer bottom of casing 1 has set firmly motor 11, motor 11 links to each other with outside controller, the controller is the device commonly used among the prior art, no longer draws here, the output shaft of motor 11 with threaded rod 12 links to each other, used for driving threaded rod 12 to rotate, and then drive connecting rod 10 is in make linear motion on threaded rod 12, the top of convex lens 2 is in slide on the inner wall of casing 1, the upper end of convex lens 2 links to each other with slider 13, be equipped with slide rail 14 on the inner wall of casing 1, slider 13 slides on slide rail 14, preferably, the both ends of slide rail 14 are equipped with the stopper, prevent convex lens 2 roll-off slide rail 14, preferably, the inner wall of casing 1 is located the place ahead of convex lens 2 is equipped with displacement sensor 15, through displacement sensor 15 measurement LED lamp with shine the distance between the target, displacement sensor 15 links to each other with outside controller, the controller is the device of prior art commonly used, no longer draws here, casing 1 outside fixed mounting has lamp shade 16, protects convex lens 2 in the focusing device, air intake 6 department is equipped with dust screen 17, dust in the cold air is prevented from entering the housing 1.

The use principle of the device is as follows: the heat generated by the LED lamp is transferred to the heat conducting plate I4 and the heat radiating fins 7 connected with the heat conducting plate I4, the fan 9 is started, cold air enters from the air inlet 6, flows forwards along the air path channel formed by the heat radiating fins 7 arranged in a staggered mode and flows out from the air outlet 8, the cold air takes away the heat on the heat conducting plate I4 and the heat radiating fins 7 connected with the heat conducting plate I4 in the flowing process and is exhausted from the air outlet, meanwhile, part of the heat carried by the cold air is transferred to the heat conducting plate II5 and the heat radiating fins 7 connected with the heat conducting plate II5 and is exhausted to one side of the fan 9 through the heat conducting plate II5 to be dissipated from the heat radiating holes, the cold air outside the lamp is fully utilized to dissipate the heat of the LED lamp, meanwhile, the cold air flows in the air path channel formed by the heat radiating fins 7; when the focal length of the lamp needs to be adjusted, the motor 11 is turned on, the threaded rod 12 rotates, the distance between the LED lamp and an irradiation target is measured through the displacement sensor 15, the threaded rod 12 drives the connecting rod 10 to move in a translation mode, the sliding block 13 on the convex lens 2 is driven to slide on the sliding rail 14, and focusing of the LED lamp is achieved.

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.

Claims

1. The utility model provides an electronic focusing device of lamps and lanterns, includes casing (1) and sets firmly lamp plate (3) in casing (1), the LED lamp has set firmly on lamp plate (3), its characterized in that, lamp plate (3) fixed surface is equipped with heat-conducting plate I (4), one side that heat-conducting plate I (4) kept away from lamp plate (3) is equipped with heat-conducting plate II (5), heat-conducting plate I (4) and heat-conducting plate II (5) parallel arrangement, and leave the clearance between heat-conducting plate I (4) and heat-conducting plate II (5), lie in on casing (1) be equipped with air intake (6) between heat-conducting plate I (4) and heat-conducting plate II (5), be equipped with gas outlet (8) on heat-conducting plate II (5), be equipped with a plurality of fin (7) between heat-conducting plate I (4) and heat-conducting plate II (5), adjacent fin (7) set up in a staggered way, one side of heat-conducting, a plurality of heat dissipation holes are formed in the shell (1) and located behind the fan (9).

2. The electric focusing device for the lamp according to claim 1, wherein a focusing device is arranged in front of the lamp panel (3), the focusing device comprises a convex lens (2) which is installed in a shell (1) and is in sliding fit with the shell (1), the bottom of the convex lens (2) is connected with a connecting rod (10), the connecting rod (10) penetrates through the bottom of the shell (1) and is in sliding connection with the shell (1), the end part of the connecting rod (10) is sleeved on a threaded rod (12) and is in threaded connection with the threaded rod (12), and the threaded rod (12) is driven by a motor (11) to rotate.

3. An electric focusing device for lamps and lanterns according to claim 2 characterized in that the top of the convex lens (2) is connected with a sliding block (13), the inner wall of the shell (1) is provided with a sliding rail (14), and the sliding block (13) slides on the sliding rail (14).

4. An electric focusing device for lamps and lanterns according to claim 2, characterized in that the inner wall of the casing (1) is provided with a displacement sensor (15) in front of the convex lens (2).

5. An electric focusing device for lamps and lanterns according to claim 1, characterized in that a lampshade (16) is fixedly arranged on the outer side of the shell (1).

6. An electric focusing device for lamps and lanterns according to claim 1, characterized in that the dust screen (17) is arranged at the air inlet (6).