CN203489216U

CN203489216U - Light-emitting diode (LED) projection lamp

Info

Publication number: CN203489216U
Application number: CN201320507428.6U
Authority: CN
Inventors: 张红英
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-19
Filing date: 2013-08-19
Publication date: 2014-03-19
Anticipated expiration: 2023-08-19

Abstract

The utility model relates to a light-emitting diode (LED) projection lamp which comprises a casing, an LED light-emitting chip, a heat dissipation unit and a control unit. The LED light-emitting chip is installed in the casing, the heat dissipation unit comprises blades, and the blades cover the surface of the casing. The control unit controls the blades of the heat dissipation unit to rotate. By controlling the heat dissipation blades to rotate through the control unit, the projection lamp can effectively prevent dust from entering the casing by closing the heat dissipation blades when closed, and the surfaces of the heat dissipation blades can be cleaned effectively and conveniently.

Description

A kind of LED projecting lamp

Technical field

The utility model relates to a kind of LED projecting lamp, particularly relates to a kind of LED projecting lamp with radiator structure.

Background technology

The features such as LED projecting lamp is because light is strong, makes that its light ray energy concentration degree of sending is very high and projection distance is far away, has the life-span very long, and the feature of environmental protection is good, good impact resistance, and shock resistance is good, is difficult for brokenly, is convenient to transportation, energy-conservation.In addition, LED shot-light also has other advantages, and as high in light quality, essentially no radiation, price are popular etc., belong to typical green illumination light source; And reliability and durability, maintenance cost is very cheap.Just because of LED shot-light has the advantages that above other solid light sources also cannot be equal to, and be widely used in various fields.

Existing projecting lamp comprises housing and fin, and wherein, fin is arranged in housing.Be generally solution heat dissipation problem, generally fin made to radial pattern fin structure.Refer to Fig. 1, publication number is that the application of CN102606994A Chinese utility model patent discloses a kind of radiator structure, comprises lamp housing 11 and lamp socket 12, and lamp housing 11 is arranged on lamp socket 12; Wherein lamp housing 11, by fin 13 around forming, and is formed in one.Yet in the prior art, the radiating fin of LED lamp is Immobile, adjacent nearer at two fin, easily shelter evil people and countenance evil practices, be difficult to clean.

Utility model content

The purpose of this utility model is that the shortcoming that overcomes prior art, with not enough, provides a kind of projecting lamp, and the radiator structure of this projecting lamp can be convenient to the dust of clean radiator shutter.

The utility model for the technical scheme that solves its technical problem and take is: a kind of LED projecting lamp, comprises housing, LED luminescence chip, heat-sink unit and control module.Described LED luminescence chip is arranged in housing.Described heat-sink unit comprises blade, and this blade covers housing outer surface.This control module is controlled the rotation of the blade of heat-sink unit.By using control module to control the rotation of radiator shutter, make projecting lamp by closed fin, can effectively prevent that dust from entering enclosure interior when closing, and can clean effectively easily fin surface.

As further improvement of the utility model, described heat-sink unit is comprised of a plurality of sub-heat-sink units, and every sub-heat-sink unit comprises blade, drive link and pinion; The top of described drive link is fixed on the mid point of a side of blade; The bottom of described drive link is connected with pinion; Described control module comprises driving gear and stepper motor; Described driving gear is arranged on the rear end of housing, and the pinion of every sub-heat-sink unit of described heat-sink unit all meshes with driving gear; The rotation of described step motor control driving gear.By driving gear, drive the kind of drive of pinion rotation can regulate accurately the angle of rotation.

As further improvement of the utility model, the blade of described sub-heat-sink unit can become with surface of shell the unspecified angle between 0-180 degree.

As further improvement of the utility model, be arranged on enclosure interior described in described stepper motor, make the structure of whole LED projecting lamp compacter, make its volume less.

As further improvement of the utility model, described stepper motor also comprises a gauge tap, and this gauge tap is the switch of the rotation direction of stepper motor for a change, can change the rotation direction of motor, and two sides that can fin convenient for cleaning.

As further improvement of the utility model, described stepper motor also comprises the step actuator of an adjustable stepper motor rotational angle.Can pass through to regulate the segmentation number of this driver, thereby change the rotational angle of stepper motor.

As further improvement of the utility model, the distance between the blade of described sub-heat-sink unit is half sum of width of the blade of adjacent two sub-heat-sink units.This technical characterictic can guarantee that sub-radiator shutter can closely be connected when LED lamp is closed, and covers the outer surface of housing.

As further improvement of the utility model, the blade size of described sub-heat-sink unit is identical, and is set in qually spaced in the outer surface of housing, the width that the distance between adjacent blade is blade.Thereby make total compacter and attractive in appearance.

As further improvement of the utility model, when light source switch is closed, fin is parallel with surface of shell; In light source switch open-type, fin is vertical with surface of shell.The angle of each fin rotating can be set arbitrarily, is preferably 90 degree.Now maximum with the contact area of air, can help heat radiation.

As further improvement of the utility model, described housing is cylindrical shell.

In order to understand better and to implement, below in conjunction with accompanying drawing, describe the utility model in detail.

Accompanying drawing explanation

Fig. 1 is prior art LED radiator structure figure.

Fig. 2 is LED projector lamp structure decomposing schematic representation of the present utility model.

Fig. 3 is the structural representation of sub-heat-sink unit.

Fig. 4 is mesh schematic representation between the pinion of the sub-heat-sink unit shown in driving gear and Fig. 3.

Fig. 5 is the structural representation that LED projecting lamp is opened.

Fig. 6 is the structural representation of LED projecting lamp closure.

The specific embodiment

Refer to Fig. 2, it is the STRUCTURE DECOMPOSITION schematic diagram of LED projecting lamp of the present utility model.LED projecting lamp of the present utility model comprises housing 1, LED luminescence chip 2, heat-sink unit 3 and control module 4.Described LED luminescence chip 2 is arranged in housing 1, and heat-sink unit 3 covers housing 1 outer surface; Control module 4 is controlled the rotation of heat-sink unit 3.

Particularly, the tubular that described housing 1 is hollow, in the present embodiment, for columnar structured.

Described heat-sink unit 3 comprises a plurality of sub-heat-sink units.Please refer to Fig. 3, its structural representation that is single sub-heat-sink unit simultaneously.Every sub-heat-sink unit comprises blade 31, one drive links 32 and a pinion 33.The top of described drive link 32 is fixed on blade 31, and in the present embodiment, the top of described drive link 32 is fixed on the center of a side of blade 31.The bottom of described drive link 32 is connected with the centre of pinion 33.By the rotation of pinion 33, can control blade 31 and carry out the rotation of different directions.

Further, described control module 4 comprises driving gear 42 and stepper motor 41; Described driving gear 42 is arranged on the rear end of housing 1; Described stepper motor 41 is controlled rotating of driving gear 42.Described stepper motor 41 can be arranged on the both sides of driving gear 42, and in the present embodiment, stepper motor is arranged on the inside of housing 1, makes the structure of whole LED lamp compacter.Please refer to Fig. 4, it is the structural representation meshing between the pinion 33 of driving gear 42 and sub-heat-sink unit.The pinion 33 of every sub-heat-sink unit is centered around the peripheral of driving gear 42 and is meshed with driving gear 42.The blade 31 of sub-heat-sink unit can be not of uniform size, and the spacing between the blade 31 of sub-heat-sink unit is half sum of adjacent two blades 31 width separately; In the present embodiment, the blade 31 of every sub-heat-sink unit is identical, and is all the periphery that is equidistantly centered around driving gear 42, and described spacing size is identical with the width of the blade 31 of sub-heat-sink unit.By driving gear 42, drive pinion 33 to rotate, and drive drive link 32 by pinion 33, and then blade 31 can be rotated.Described stepper motor 41 also comprises the switch that a conversion turns to, and this switch is arranged on the bonnet place of housing 1, and when LED projecting lamp is opened or while closing, this switch can change turning to of stepper motor 41.

Refer to Fig. 5, state diagram when it is opened for LED projecting lamp.At LED projecting lamp, during in opening, when LED is luminous, stepper motor 41 also starts and rotates, to drive driving gear 42 to turn to the angle of a setting; Pinion 33 by driving gear 42 with mover heat-sink unit rotates; And then drive drive link 32 by pinion 33, and finally by drive link 32 band moving vanes 31, rotated, make the blade 31 of sub-heat-sink unit and the outer surface of housing 1 form an angle of setting.When LED closes, stepper motor 41 again starts and rotates, so that blade 31 rotates and covers housing 1 surface, in the present embodiment, rotation direction when this stepper motor 41 can continue along unlatching is rotated further, and drives driving gear 42, and by driving gear 42 with the pinion 33 on mover heat-sink unit, by these pinion 33 band moving vanes 31, rotated, finally make the blade 31 of every sub-heat-sink unit adjacent closely connected between any two, cover the surface of housing 1.Refer to Fig. 6, state diagram when it is closed for the LED projecting lamp shown in Fig. 5.At LED lamp during in closed condition, every sub-heat-sink unit blade 31 be closely connected, cover on housing 1.The utility model is by being used control module 4 to control the rotation of the blade of heat-sink unit, make LED projecting lamp when closing, form closed blade and cover surface of shell, can effectively prevent that dust from entering housing 1 inside, and can be effectively and clean fin surface easily.

When the blade 31 of the sub-heat-sink unit of clean LED projecting lamp, can carry out in the following manner more convenient clean efficiently.First, at LED lamp, during in closed condition, blade 31 is the outer surfaces that closely cover housing 1, now can first clean the one side of blade 31.Then, then LED lamp is opened, closed afterwards again, now, blade 31 can rotate 180 degree, thereby can clean the other one side of blade 31.Meanwhile, after housing 1, be covered with a switch that can change stepper motor 41 rotation directions, also can regulate turning to of stepper motor 41 by using this switch, be conducive to dirt and the dust on blade 31 two sides of clean every sub-heat-sink unit.

Described stepper motor 41 also comprises a step actuator, can regulate by adjusting the mode of the segmentation number of this step actuator the rotational angle of stepper motor 41, and described angle can, for arbitrarily angled between from 0 to 180 degree, be preferably 90 degree.When opening LED projecting lamp, blade 31 rotates 90 degree, vertical with housing 1 surface, is now maximum with the contact area of air, and radiating effect when now LED lamp is opened is best.And the rotational angle of blade 31 while closing LED lamp is also 90 degree.

Also can be arranged to open 60 degree, the rotational angle of closing is 120 degree.When LED opens, the blade 31 of fin becomes 60 degree angles with housing 1 surface.When LED closes, the blade 31 of fin is rotated further 120 degree to identical direction, thereby guarantees that the blade 31 of the fin when LED lamp is closed parallels with housing 1.

With respect to prior art, LED projecting lamp of the present utility model is by step motor control driving gear, by driving gear, drive pinion again, thereby realize the control to the rotation of radiator shutter, the function of the blade that makes LED projecting lamp performance heat radiation when opening, function that can covering shell performance dustproof encloser while closing.Meanwhile, blade also rotate at any angle can be conveniently clean to it.

The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or distortion are not departed to spirit and scope of the present utility model, within if these changes and distortion belong to claim of the present utility model and equivalent technologies scope, the utility model is also intended to comprise these changes and distortion.

Claims

1. a LED projecting lamp, comprises housing, LED luminescence chip, heat-sink unit and control module; It is characterized in that: described LED luminescence chip is arranged in housing, and described heat-sink unit comprises blade, and this blade covers housing outer surface; This control module is controlled the rotation of the blade of heat-sink unit.

2. LED projecting lamp according to claim 1, is characterized in that: described heat-sink unit is comprised of a plurality of sub-heat-sink units, and every sub-heat-sink unit comprises blade, drive link and pinion; The top of described drive link is fixed on the mid point of a side of blade; The bottom of described drive link is connected with pinion;

Described control module comprises driving gear and stepper motor; Described driving gear is arranged on the rear end of housing, and the pinion of every sub-heat-sink unit of described heat-sink unit all meshes with driving gear; The rotation of described step motor control driving gear.

3. LED projecting lamp according to claim 2, is characterized in that: described stepper motor is arranged on enclosure interior.

4. a kind of LED projecting lamp according to claim 2, is characterized in that: the blade of described sub-heat-sink unit can become with surface of shell the unspecified angle between 0-180 degree.

5. LED projecting lamp according to claim 2, is characterized in that: described stepper motor also comprises a gauge tap, and this gauge tap is the switch of the rotation direction of stepper motor for a change.

6. LED projecting lamp according to claim 2, is characterized in that: described stepper motor also comprises the step actuator of an adjustable stepper motor rotational angle.

7. LED projecting lamp according to claim 2, is characterized in that: the adjacent blades spacing of described sub-heat-sink unit is half sum of the width separately of blade of adjacent two sub-heat-sink units.

8. according to the LED projecting lamp described in any one in claim 2-7, it is characterized in that: described sub-heat-sink unit is for being equidistantly centered around the outer surface of housing.

9. LED projecting lamp according to claim 1, is characterized in that: described housing is cylindrical shell.