CN117515476B - LED projection lamp composition and control method thereof - Google Patents

Abstract

The invention discloses an LED projection lamp composition and a control method thereof, wherein the composition comprises the following components: the LED lamp comprises a lamp fixing cavity, a fixing reflecting wall, a reflecting inner wall base, a foldable reflecting inner wall, an LED light source and a control unit. The LED spotlight can be used for outdoors, indoors, stages, searchlight, headlamps and the like, and the light scattering and light focusing mode conversion of the LED spotlight is realized through the foldable rotatable inner wall structure; and the convex and concave flexible reflecting structures act together with the beam fan and the beam plate to intelligently adjust the range of the illumination target area and the brightness of the projection light of the LED projection lamp; the folded inner wall after being folded can be used for conducting temperature and preventing the LED projection lamp from being overheated.

Description

LED projection lamp composition and control method thereof

Technical Field

The invention belongs to the field of LED illumination, and particularly relates to an LED projection lamp.

Background

The existing LED projection lamp has single adjusting function for adjusting the range of the illumination target area and the brightness of the projection light, and the adjusting process is not intelligent; meanwhile, a scientifically controllable cooling mode is also lacking for the inner part and the outer part of the LED projection lamp.

Disclosure of Invention

The invention aims to provide an LED projection lamp composition and a control method thereof, which are used for solving the technical problems in the prior art.

The technical scheme adopted by the invention is as follows:

An LED projector, comprising: the LED lamp comprises a lamp fixing cavity, a fixing reflecting wall, a reflecting inner wall base, a foldable reflecting inner wall, an LED light source and a control unit; the lamp fixing cavity is provided with a fixed reflecting wall; the base part of the reflective inner wall is arranged in the middle space of the lamp fixing cavity; the LED light source is arranged in the rear end space inside the base part of the reflecting inner wall; the foldable reflective inner wall is rotatably connected with the reflective inner wall base; a convex flexible reflecting structure is arranged on the foldable reflecting inner wall; the lamp fixing cavity is provided with a telescopic rod, and the control unit controls the protruding degree of the protruding flexible reflecting structure by changing the telescopic state of the telescopic rod.

Preferably, a light-pocket wall, a light-beam fan and Shu Guangban are arranged around the LED light source; the light pocket wall is arranged at the rear side of the LED light source; shu Guangban is arranged in front of the LED light source; shu Guangshan are arranged on two sides of the LED light source.

Preferably, the plurality of beam light panels integrate the LED projection light emitted by the LED light source into a beam; shu Guangshan rotates around the shaft to drive the plurality of beam plates to rotate around the Shu Guangban rotating shaft.

Preferably, the other side of the base part of the reflective inner wall is provided with a foldable reflective concave side inner wall; the inner wall of the foldable reflective concave side is provided with a concave flexible reflective structure.

Preferably, the upper and lower positions of the lamp fixing cavity are respectively provided with a heat conducting ring, and the heat conducting rings are contacted with the inner wall of the folded foldable reflective concave side or the foldable reflective inner wall.

Preferably, the heat conducting ring is provided with a semiconductor refrigerator, and the control unit sends a refrigeration signal to the semiconductor refrigerator when detecting that the temperature of the heat conducting ring reaches a threshold value, and the semiconductor refrigerator enters a refrigeration state.

Preferably, the bottom of the base of the reflective inner wall is provided with a rotating boss.

Preferably, the foldable reflective inner wall is provided with a convex side spring.

Preferably, concave side spring blocks are arranged around the inner wall of the foldable reflective concave side.

A control method for an LED projection lamp composition is characterized by comprising the following steps:

S110: judging the use scene of the LED projection lamp selected by a user: a astigmatism mode, a focus mode;

astigmatism pattern S210: the user sends a control signal to the control unit through the mobile phone APP, the computer program, the touch screen or the control knob, and the control unit adjusts the convex flexible reflecting structure and the rotation angle of the beam fan, so that the illumination target area range and the projection brightness of the LED projection lamp are changed; the convex flexible reflective structures can be adjusted together, so that the convex degree of each convex flexible reflective structure is consistent, or the convex flexible reflective structures on the same foldable reflective inner wall are raised from front to back according to the form of big to small, or the convex flexible reflective structures on the same foldable reflective inner wall are raised from front to back according to the form of small to big; the upper and lower positions of the lamp fixing cavity are respectively provided with a heat conducting ring, the heat conducting rings are contacted with the inner wall of the folded foldable reflective concave side, and when the temperature of the heat conducting rings reaches a threshold value, the semiconductor refrigerator starts to refrigerate and cool;

Condensing mode S310: the user sends a control signal to the control unit through the mobile phone APP, the computer program, the touch screen or the control knob, and the control unit adjusts the concave flexible reflecting structure and the rotation angle of the beam fan, so that the illumination target area range and the projection brightness of the LED projection lamp are changed; the concave flexible reflective structures can be adjusted together, so that the concave flexible reflective structures are consistent in concave degree, or concave flexible reflective structures on the inner wall of the same foldable reflective concave side are concave from front to back according to the shape from big to small, or concave flexible reflective structures on the inner wall of the same foldable reflective concave side are concave from front to back according to the shape from small to big; the upper and lower positions of the lamp fixing cavity are respectively provided with a heat conducting ring, the heat conducting rings are contacted with the folded foldable reflecting inner wall, and when the temperature of the heat conducting rings reaches a threshold value, the semiconductor refrigerator starts to refrigerate and cool.

The LED floodlight composition and the control method thereof can be used for outdoor, indoor, stage, searchlight, headlight and the like, and realize the mode conversion of light scattering and light focusing of the LED floodlight through the foldable rotatable inner wall structure; and the convex and concave flexible reflecting structures act together with the beam fan and the beam plate to intelligently adjust the range of the illumination target area and the brightness of the projection light of the LED projection lamp; the folded inner wall after being folded can be used for conducting temperature and preventing the LED projection lamp from being overheated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an internal cross section of an LED projector.

FIG. 2 is a schematic view of a collapsible retroreflective inner wall and collapsible retroreflective concave side inner wall in an expanded state.

Fig. 3 is a schematic cross-sectional view of a reflector wall and a lamp fixture cavity.

Fig. 4 is a schematic diagram of an LED light source and a beam control structure.

Fig. 5 is a schematic view of the projected beam path of the concave flexible light reflecting structure.

Fig. 6 is a schematic cross-sectional view showing the shape and position of a convex side spring in a convex state of a convex flexible light reflecting structure.

Fig. 7 is a schematic cross-sectional view of the convex side spring shape and position during retraction of the convex flexible retroreflective structure.

FIG. 8 is a schematic cross-sectional view of the shape and position of a concave side spring block in a concave state of a concave flexible light reflecting structure.

Fig. 9 is a schematic cross-sectional view of the shape and position of the concave side spring block during retraction of the concave flexible retroreflective structure.

Fig. 10 is a schematic side cross-sectional view of a particular morphology of a retroreflective structure.

FIG. 11 is a schematic view of a specific form of projected beam path for a concave flexible retroreflective structure.

Fig. 12 is a flowchart of a control method of the LED projector composition.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, if the terms "front", "rear", "upper", "lower", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.

As shown in the accompanying drawings 1-3 and 5: an LED projector, comprising: the lamp-fixing chamber 110, the foldable reflective inner wall 220, the LED light source 310, and a control unit (not shown).

The lamp fixing cavity 110 is fixedly provided with a reflecting wall 120, the reflecting wall 120 is rigidly connected with the lamp fixing cavity 110, and the relative position of the reflecting wall 120 and the lamp fixing cavity is kept unchanged; the reflective inner wall base 210 is disposed in the middle space of the lamp-fixing chamber 110; the control unit sends out a control signal to enable the foldable reflective inner wall 220 to form a reflective inner wall together with the fixed reflective wall 120 and the reflective inner wall base 210 after being unfolded around the inner wall rotating shaft 240, and the LED light emitted by the LED light source 310 is emitted to the illumination target area A; the foldable reflective inner wall 220 is rotatably connected with the reflective inner wall base 210 through an inner wall rotation shaft 240, and the control unit controls the foldable reflective inner wall 220 to rotate around the inner wall rotation shaft 240, thereby retracting the plurality of foldable reflective inner walls 220.

The foldable reflective inner wall 220 is provided with the convex flexible reflective structure 230, when the convex flexible reflective structure 230 is convex, LED lamplight is caused to diverge, the range of the illumination target area A is enlarged, the projection brightness of the illumination target area A is reduced, and therefore the projection effect of the LED lamp is changed; the lamp fixing chamber 110 is provided with a telescopic rod 130, and the control unit controls the degree of protrusion of the convex flexible light reflecting structure 230 by changing the telescopic state of the telescopic rod 130, thereby changing the range expansion degree and the projection brightness of the illumination target area a.

As shown in the accompanying figures 1 and 4-5 of the specification: the LED light source 310 is disposed in the middle space of the lamp-fixing chamber 110, maintains a constant relative position to the lamp-fixing chamber 110, is located in the rear space inside the reflective inner wall base 210, and does not contact the reflective inner wall base 210; the light-pocket walls 320, shu Guangshan, shu Guangban, 340, shu Guangban rotating shafts 341 are arranged around the LED light source 310; the light-blocking wall 320 is disposed at the rear side of the LED light source 310, and emits light emitted from the LED light source 310 backward to the front; shu Guangban 340 a is disposed in front of the LED light source 310; the plurality of beam plates 340 integrate the LED projection light emitted from the LED light source 310 into a beam; shu Guangshan, wherein the Shu Guangshan is arranged at two sides, namely upper and lower sides or left and right sides, of the LED light source 310, shu Guangshan, the 330 rotates around a shaft within a certain angle range to drive the plurality of beam light plates 340 to rotate around a beam light plate rotating shaft 341, so that the concentration of LED projection light emitted by the LED light source 310 is changed; shu Guangshan 330, shu Guangban, 340 and the convex flexible light reflecting structure 230, by the mutual cooperation of the bundling degree and the divergence degree, the range of the illumination target area A and the projection brightness of the LED projection lamp are changed.

As shown in the attached figures 1-5 of the specification: the other side of the reflective inner wall base 210 is provided with a foldable reflective concave inner wall 260, and the control unit sends out a control signal to enable the concave foldable reflective concave inner wall 260 to form a reflective inner wall together with the fixed reflective wall 120 and the reflective inner wall base 210 after being opened around the inner wall rotating shaft, so that LED light emitted by the LED light source 310 is emitted to the illumination target area A; the foldable light reflecting concave side inner walls 260 are rotatably connected with the light reflecting inner wall base 210 through inner wall rotating shafts, and the control unit controls the foldable light reflecting concave side inner walls 260 to rotate around the inner wall rotating shafts 240, so that the plurality of foldable light reflecting concave side inner walls 260 are retracted; the inner wall 260 of the foldable reflective concave side is provided with a concave flexible reflective structure 270, when the concave flexible reflective structure 270 is concave, the projected LED light beams are converged towards the center of the illumination target area a, and the projected light beams of the plurality of concave flexible reflective structures 270 are converged towards the center of the illumination target area a to cause the enhancement of the projection brightness of the concentrated illumination area B of a more central area (at this time, the projection brightness is weakened in the annular area except the concentrated illumination area B in the illumination target area a), so that the light focusing effect is realized, and the projection effect of the LED lamp is changed; shu Guangshan 330, shu Guangban and the concave flexible reflective structure 270 form a concentrated illumination area B through the mutual matching of the bundling degree and the condensing degree, the concentrated illumination area B is arranged in the illumination target area A, and the transmission brightness is higher at the position closer to the center, so that the illumination target area A and the projection brightness of the LED projection lamp are changed.

The upper and lower positions of the rear part of the lamp fixing chamber 110 are respectively provided with a heat conducting ring 140; when the folded foldable light reflecting concave side inner wall 260 (or the foldable light reflecting inner wall 220) rotates into the cavity at the rear part of the lamp fixing cavity 110, the heat conducting ring 140 at the upper and lower positions is contacted with the folded foldable light reflecting concave side inner wall 260 (or the foldable light reflecting inner wall 220) to diffuse the internal high temperature conducted by the light reflecting inner wall base 210 and the foldable light reflecting concave side inner wall 260 (or the foldable light reflecting inner wall 220); the heat conductive ring 140 is provided with a semiconductor refrigerator, and the control unit detects that the temperature of the heat conductive ring 140 reaches a threshold value, and sends a refrigerating signal to the semiconductor refrigerator, and the semiconductor refrigerator enters a refrigerating state, thereby cooling the foldable reflective concave side inner wall 260 (or the foldable reflective inner wall 220), the reflective inner wall base 210, the foldable reflective inner wall 220 (or the foldable reflective concave side inner wall 260) and the lamp fixing cavity 110 connected thereto, and the cavity interior thereof.

The bottom of the reflective inner wall base 210 is provided with a rotation boss 250, and the control unit controls the rotation of the rotation boss 250, so that the rotation conversion between the foldable reflective inner wall 220 and the foldable reflective concave side inner wall 260 in a folded state is realized, and when the rotation conversion is performed on the two, the LED light sources 310 independently work without changing positions and angles.

As shown in fig. 6-7 of the specification: the foldable reflective inner wall 220 is provided with a convex side spring 280, one side of the convex side spring 280 is fixed on the foldable reflective inner wall 220, and the other side of the convex side spring 280 is connected with the convex flexible reflective structure 230; the convex side spring 280 can extend axially and stretch out and draw back, and can rotate slightly along the radial direction, and the elastic connection between the convex flexible reflective structure 230 and the foldable reflective inner wall 220 is realized through the convex side spring 280, so that the convex and retraction movement state of the convex flexible reflective structure 230 is buffered, the damage to the connection part of the convex flexible reflective structure 230 and the foldable reflective inner wall 220, which is directly connected, is avoided, and the convex effect of the convex flexible reflective structure 230 can be improved due to the characteristic that the convex side spring 280 can rotate slightly along the radial direction; the control unit controls the degree of protrusion of the convex-shaped flexible light reflecting structure 230 by changing the telescopic state of the telescopic link 130, thereby changing the extent of expansion of the illumination target area a and the brightness of the projected light.

As shown in fig. 8-9 of the specification: a plurality of concave side spring blocks 290 are arranged around the foldable reflective concave side inner wall 260, the concave side spring blocks 290 can slide along the concave side rails 291, and the other side is connected with the concave flexible reflective structure 270; concave boss 292 is arranged on concave side spring block 290, lamp fixing cavity 110 is provided with rotary shaft boss 150, rotary shaft boss 150 is provided with telescopic shaft 131, telescopic shaft 131 can rotate around rotary shaft of rotary shaft boss 150, and top end of telescopic shaft 131 is concave boss 292 with spherical surface capable of being embedded into concave side spring block 290; the telescopic shaft 131 stretches and rotates to drive the concave side spring block 290 to slide along the concave side rail 291, so that the concave flexible reflective structure 270 is driven to sink or retract; the concave side spring block 290 can extend axially and slightly rotate along the radial direction, the concave side spring block 290 can buffer the concave and retraction movement state of the concave flexible reflecting structure 270, the connection part of the concave flexible reflecting structure 270 and the sliding block driving the concave and retraction movement of the concave flexible reflecting structure is prevented from being damaged, and the concave effect of the concave flexible reflecting structure 270 can be improved due to the characteristic that the concave side spring block 290 can slightly rotate along the radial direction; the control unit controls the concave state of the concave flexible light reflecting structure 270 by changing the telescopic state of the telescopic shaft 131, thereby changing the condensing degree and the projected light brightness of the illumination target area a range.

As shown in fig. 10 of the specification: the concave flexible light reflecting structures 270 have consistent concave degree, and the concave flexible light reflecting structures 270 can be independently adjusted, for example, the concave flexible light reflecting structures 270 on the same inner wall 260 of the foldable light reflecting concave side are concave from front to back according to the shape (1) from big to small, or the concave flexible light reflecting structures 270 on the inner wall 260 of the same foldable light reflecting concave side are concave from front to back according to the shape (2) from small to big; the convex flexible light reflecting structures 230 can be adjusted together, so that the convex flexible light reflecting structures 230 have consistent degrees of protrusion, or the convex flexible light reflecting structures 230 can be adjusted independently, for example, the convex flexible light reflecting structures 230 on the same foldable light reflecting inner wall 220 are protruded from front to back according to the shape (3) from big to small, or the convex flexible light reflecting structures 230 on the same foldable light reflecting inner wall 220 are protruded from front to back according to the shape (4) from small to big.

As shown in fig. 11 of the specification: taking the influence of the concave flexible reflective structure 270 on the light condensing degree and the projection brightness of the illumination target area A of the LED spotlight as an example, when the concave flexible reflective structure 270 on the inner wall 260 of the same foldable reflective concave side is concave from front to back according to the mode (1) from big to small', the LED light beam projected by the big-form concave flexible reflective structure 270 at the front end is projected to the edge of the concentrated illumination area B to form a large light spot C, the LED light beam projected by the small-form concave flexible reflective structure 270 at the rear end is projected to the central position of the concentrated illumination area B to form a small light spot, and the coverage area of the central area D formed by a plurality of small light spots is small, so that the brightness difference between the central area of the concentrated illumination area B and the brightness of the edge area are small, and the coverage area of the concentrated illumination area B has uniform illumination brightness as a whole; when the concave flexible reflective structure 270 on the same foldable reflective concave side inner wall 260 is concave from front to back according to the shape (2) from small to large, the LED light beam projected by the small concave flexible reflective structure 270 at the front end is projected to the edge of the concentrated illumination area B to form a small light spot C ', the LED light beam projected by the large concave flexible reflective structure 270 at the rear end is projected to the central position of the concentrated illumination area B to form a large light spot, and the central area D' covered by a plurality of large light spots is larger, so that the brightness of the central area and the brightness of the edge area of the concentrated illumination area B are larger in difference, and the brightness of the concentrated illumination area B is reduced in a larger gradient from the center to the edge.

As shown in fig. 12 of the specification: a control method for an LED projection lamp comprises the following steps:

S100: the LED projector control unit is initialized.

S110: judging the use scene of the LED projection lamp selected by a user: astigmatism mode (jump to S200), spotlight mode (jump to S300), replacement of inner wall (jump to S400), turning off LED projector (jump to S500).

S200: if the LED projector is in the state of "the foldable reflective concave side inner wall 260 is unfolded and the foldable reflective inner wall 220 is folded", the top end of each telescopic shaft 131 is separated from the concave boss 292, and the telescopic shaft 131 is retracted; the foldable light reflecting concave side inner walls 260 rotate around the inner wall rotating shaft 240, and the plurality of foldable light reflecting concave side inner walls 260 are retracted; the rotating boss 250 rotates, one side of the foldable reflective inner wall 220 faces forward, and one side of the foldable reflective concave inner wall 260 faces backward; the foldable reflective inner wall 220 opens around the inner wall rotation shaft 240 to form a reflective inner wall with the fixed reflective wall 120 and the reflective inner wall base 210; the extension rod 130 extends out and stops after contacting each convex flexible light reflecting structure 230; the LED light source 310 emits light.

S201: if the LED projector is in the state of folding reflective inner wall 220 and folding reflective concave inner wall 260; the rotating boss 250 rotates, one side of the foldable reflective inner wall 220 faces forward, and one side of the foldable reflective concave inner wall 260 faces backward; the foldable reflective inner wall 220 opens around the inner wall rotation shaft 240 to form a reflective inner wall with the fixed reflective wall 120 and the reflective inner wall base 210; the extension rod 130 extends out and stops after contacting each convex flexible light reflecting structure 230; the LED light source 310 emits light.

S210: the user sends a control signal to the control unit through a mobile phone APP, a computer program, a touch screen or a control knob and the like, and the control unit adjusts the rotation angles of the convex flexible reflective structure 230 and the beam fan 330, so that the illumination target area range and the projection brightness of the LED projection lamp are changed; wherein, each convex type flexible reflective structure 230 can be adjusted together, so that the convex degree of each convex type flexible reflective structure 230 is consistent, and each convex type flexible reflective structure 230 can be adjusted independently, for example, the convex type flexible reflective structures 230 on the same foldable reflective inner wall 220 are protruded from front to back according to the form of 'from big to small', or the convex type flexible reflective structures 230 on the same foldable reflective inner wall 220 are protruded from front to back according to the form of 'from small to big'; the upper and lower heat conducting rings 140 are in contact with the inner wall 260 of the folded foldable reflective concave side, and when the temperature of the heat conducting rings 140 reaches the threshold value, the semiconductor refrigerator starts to refrigerate and cool.

S220: the user selects the "spotlight mode", "change inner wall" or "turn off LED projector" mode, LED light source 310 is turned off; the process goes to step S110.

S300: if the LED projector is in the state of unfolding the foldable reflective inner wall 220 and folding the foldable reflective concave side inner wall 260, the telescopic rod 130 is retracted; the foldable reflective inner walls 220 rotate about the inner wall rotation axis 240, and the plurality of foldable reflective inner walls 220 are retracted; the rotating boss 250 rotates, one side of the foldable reflective concave inner wall 260 faces forward, and one side of the foldable reflective inner wall 220 faces backward; the foldable reflective concave side inner wall 260 is opened around the inner wall rotation shaft 240 to form a reflective inner wall with the fixed reflective wall 120 and the reflective inner wall base 210; the telescopic shafts 131 extend out, and the top ends of the telescopic shafts 131 are embedded into the concave bosses 292; the LED light source 310 emits light.

S301: if the LED projector is in the state of folding reflective inner wall 220 and folding reflective concave inner wall 260; the rotating boss 250 rotates, one side of the foldable reflective concave inner wall 260 faces forward, and one side of the foldable reflective inner wall 220 faces backward; the foldable reflective concave side inner wall 260 is opened around the inner wall rotation shaft 240 to form a reflective inner wall with the fixed reflective wall 120 and the reflective inner wall base 210; the telescopic shafts 131 extend out, and the top ends of the telescopic shafts 131 are embedded into the concave bosses 292; the LED light source 310 emits light.

S310: the user sends a control signal to the control unit through a mobile phone APP, a computer program, a touch screen or a control knob and the like, and the control unit adjusts the rotation angles of the concave flexible reflective structures 270 and Shu Guangshan, so that the illumination target area range and the projection brightness of the LED projection lamp are changed; wherein, each concave flexible light reflecting structure 270 can be adjusted together, so that the concave flexible light reflecting structures 270 have consistent concave degree, and each concave flexible light reflecting structure 270 can be adjusted independently, for example, the concave flexible light reflecting structures 270 on the same foldable light reflecting concave side inner wall 260 are concave from front to back according to the shape of 'from big to small', or the concave flexible light reflecting structures 270 on the same foldable light reflecting concave side inner wall 260 are concave from front to back according to the shape of 'from small to big'; the heat conducting ring 140 is connected with the folded foldable reflective inner wall 220, and when the temperature of the heat conducting ring 140 reaches the threshold value, the semiconductor refrigerator starts to refrigerate and cool down.

S320: the user selects "diffuse mode", "change inner wall", "turn off LED projector" mode, LED light source 310 is turned off; the process goes to step S110.

S400: the telescopic rod 130 and the telescopic shaft 131 are retracted; the foldable reflective inner wall 22 and the foldable reflective concave side inner wall 260 are all retracted; replacing the inner wall; the process goes to step S110.

S500: the control unit is in a standby state; the process proceeds to step S110 according to the user instruction.

The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present invention, and are not to be construed as limiting the scope of the invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.

Claims (9)

1. An LED projector, comprising: a lamp-fixing chamber (110), a fixed reflective wall (120), a reflective inner wall base (210), a foldable reflective inner wall (220), an LED light source (310), and a control unit; the lamp fixing cavity (110) is provided with a fixed reflecting wall (120); the reflective inner wall base (210) is arranged in the middle space of the lamp fixing cavity (110); the LED light source (310) is arranged in the rear end space inside the reflective inner wall base (210); the foldable reflective inner wall (220) is rotatably connected with one side of the reflective inner wall base (210) through an inner wall rotating shaft (240); a convex flexible reflective structure (230) is arranged on the foldable reflective inner wall (220); the lamp fixing cavity (110) is provided with a telescopic rod (130), and the control unit controls the protruding degree of the protruding flexible reflecting structure (230) by changing the telescopic state of the telescopic rod (130); the other side of the reflective inner wall base (210) is provided with a foldable reflective concave side inner wall (260), the control unit sends out a control signal to enable the concave type foldable reflective concave side inner wall (260) to form a reflective inner wall together with the fixed reflective wall (120) and the reflective inner wall base (210) after being unfolded around an inner wall rotating shaft, and LED light emitted by the LED light source (310) is emitted to the illumination target area A;

The foldable light reflecting concave side inner walls (260) are rotatably connected with the light reflecting inner wall base (210) through inner wall rotating shafts, and the control unit controls the foldable light reflecting concave side inner walls (260) to rotate around the inner wall rotating shafts (240), so that the plurality of foldable light reflecting concave side inner walls (260) are retracted; the foldable reflective concave side inner wall (260) is provided with a concave flexible reflective structure (270), when the concave flexible reflective structure (270) is concave, the LED light beams projected by the concave flexible reflective structure (270) are converged towards the center of the illumination target area A, and the light beams projected by the plurality of concave flexible reflective structures (270) are converged towards the center of the illumination target area A to cause the projection brightness enhancement of the concentrated illumination area B in a more central area; the bottom of the reflective inner wall base (210) is provided with a rotary boss (250), and the control unit controls the rotary boss (250) to rotate, so that the rotary conversion between the foldable reflective inner wall (220) and the foldable reflective concave side inner wall (260) in a folded state is realized, and when the rotary conversion is carried out on the two, the LED light source (310) independently works without position and angle change.

2. The LED projector of claim 1, wherein a light pocket wall (320), shu Guangshan (330), shu Guangban (340) is provided around the LED light source (310); the light-pocket wall (320) is arranged at the rear side of the LED light source (310); shu Guangban (340) is arranged in front of the LED light source (310); shu Guangshan (330) are arranged on both sides of the LED light source (310).

3. The LED projector of claim 2, wherein the plurality of beam panels (340) integrate the LED projection light emitted by the LED light source (310) into a beam; shu Guangshan (330) rotates around the shaft to drive the plurality of beam light plates (340) to rotate around the beam light plate rotating shaft (341).

4. A LED projector as claimed in claim 3, characterized in that the lamp-fixing chamber (110) is provided with heat-conducting rings (140) at the upper and lower positions, respectively; when the folded foldable light reflecting concave side inner wall (260) rotates into the cavity at the rear part of the lamp fixing cavity (110), the heat conducting ring (140) at the upper and lower positions is contacted with the folded foldable light reflecting concave side inner wall (260), and the inner high temperature conducted by the light reflecting inner wall base (210) and the foldable light reflecting concave side inner wall (260) is dissipated.

5. A LED projector as claimed in claim 3, characterized in that the lamp-fixing chamber (110) is provided with heat-conducting rings (140) at the upper and lower positions, respectively; when the folded foldable reflecting inner wall (220) rotates into the cavity at the rear part of the lamp fixing cavity (110), the heat conducting ring (140) at the upper and lower positions is contacted with the folded foldable reflecting inner wall (220), and the inner high temperature conducted by the base part (210) of the reflecting inner wall and the foldable reflecting inner wall (220) is dissipated.

6. The LED floodlight according to claim 4 or 5, wherein the heat conducting ring (140) is provided with a semiconductor refrigerator, and the control unit detects that the temperature of the heat conducting ring (140) reaches a threshold value, and sends a refrigerating signal to the semiconductor refrigerator, and the semiconductor refrigerator enters a refrigerating state.

7. The LED projector as defined in claim 6, wherein a convex side spring (280) is provided on the foldable reflective inner wall (220), one side of the convex side spring (280) is fixed on the foldable reflective inner wall (220), and the other side of the convex side spring (280) is connected with the convex flexible reflective structure (230); the convex side spring (280) can extend and retract axially and slightly rotate along the radial direction, and elastic connection between the convex flexible reflecting structure (230) and the foldable reflecting inner wall (220) is realized through the convex side spring (280).

8. The LED projector of claim 7, wherein a concave side spring block (290) is disposed around the foldable reflective concave side inner wall (260), the concave side spring block (290) is slidable along a concave side rail (291), one side of the concave side spring block (290) is connected to the foldable reflective concave side inner wall (260), and the other side of the concave side spring block (290) is connected to the concave flexible reflective structure (270); concave surface bosses (292) are arranged on the concave side spring blocks (290), a rotating shaft boss (150) is arranged on the lamp fixing cavity (110), a telescopic shaft (131) is arranged on the rotating shaft boss (150), the telescopic shaft (131) can rotate around the rotating shaft of the rotating shaft boss (150), and the top end of the telescopic shaft (131) is a spherical surface and can be embedded into the concave surface bosses (292) of the concave side spring blocks (290); the telescopic shaft (131) stretches and rotates to drive the concave side spring block (290) to slide along the concave side rail (291), so that the concave flexible reflecting structure (270) is driven to sink or retract; the concave side spring block (290) is axially retractable and slightly rotatable in a radial direction.

9. The method of controlling an LED projector composition of claim 8, wherein:

S110: judging the use scene of the LED projection lamp selected by a user: if the astigmatism mode is adopted, step S200 is executed; if the light condensing mode is adopted, executing step S300; if the inner wall mode is changed, executing step S400; if the LED projector is turned off, step S500 is executed.

S200: if the LED projection lamp is in a state of unfolding the foldable reflecting concave side inner wall (260) and folding the foldable reflecting inner wall (220), the top ends of the telescopic shafts (131) are separated from the concave bosses (292), and the telescopic shafts (131) are retracted; the foldable light reflecting concave side inner walls (260) rotate around the inner wall rotating shafts (240), and the plurality of foldable light reflecting concave side inner walls (260) are retracted; the rotary boss (250) rotates, one side of the foldable reflective inner wall (220) faces forward, and one side of the foldable reflective concave inner wall (260) faces backward; the foldable reflective inner wall (220) is unfolded around the inner wall rotating shaft (240) to form a reflective inner wall together with the fixed reflective wall (120) and the reflective inner wall base (210); the telescopic rods (130) extend out and stop after contacting each convex flexible reflecting structure (230); the LED light source (310) emits light.

S201: if the LED projection lamp is in a state that the foldable reflecting inner wall (220) and the foldable reflecting concave side inner wall (260) are all retracted at the moment; the rotary boss (250) rotates, one side of the foldable reflective inner wall (220) faces forward, and one side of the foldable reflective concave inner wall (260) faces backward; the foldable reflective inner wall (220) is unfolded around the inner wall rotating shaft (240) to form a reflective inner wall together with the fixed reflective wall (120) and the reflective inner wall base (210); the telescopic rods (130) extend out and stop after contacting each convex flexible reflecting structure (230); the LED light source (310) emits light.

S210: the user sends control signals to the control unit through a mobile phone APP, a computer program, a touch screen or a control knob and the like, and the control unit adjusts the rotation angles of the convex flexible reflecting structure (230) and the beam fan (330), so that the illumination target area range and the projection brightness of the LED projection lamp are changed; wherein, each convex type flexible reflecting structure (230) can be adjusted together, so that the convex degree of each convex type flexible reflecting structure (230) is consistent, and each convex type flexible reflecting structure (230) can be independently adjusted; the upper and lower heat conducting rings (140) are contacted with the inner wall (260) of the folded reflective concave side, and when the temperature of the heat conducting rings (140) reaches the threshold value, the semiconductor refrigerator starts to refrigerate and cool.

S220: the user selects a 'spotlight mode', 'replace inner wall' or 'turn off LED projector' mode, the LED light source (310) is turned off; the process goes to step S110.

S300: if the LED projection lamp is in a state that the foldable reflecting inner wall (220) is unfolded and the foldable reflecting concave side inner wall (260) is retracted at the moment, the telescopic rod (130) is retracted; the foldable reflective inner walls (220) rotate around the inner wall rotating shafts (240), and the plurality of foldable reflective inner walls (220) are retracted; the rotary boss (250) rotates, one side of the inner wall (260) of the foldable reflective concave side faces forward, and one side of the inner wall (220) of the foldable reflective concave side faces backward; the foldable reflective concave side inner wall (260) is unfolded around the inner wall rotating shaft (240) to form a reflective inner wall together with the fixed reflective wall (120) and the reflective inner wall base (210); the telescopic shafts (131) extend out, and the top ends of the telescopic shafts (131) are embedded into the concave bosses (292); the LED light source (310) emits light.

S301: if the LED projection lamp is in a state that the foldable reflecting inner wall (220) and the foldable reflecting concave side inner wall (260) are all retracted at the moment; the rotary boss (250) rotates, one side of the inner wall (260) of the foldable reflective concave side faces forward, and one side of the inner wall (220) of the foldable reflective concave side faces backward; the foldable reflective concave side inner wall (260) is unfolded around the inner wall rotating shaft (240) to form a reflective inner wall together with the fixed reflective wall (120) and the reflective inner wall base (210); the telescopic shafts (131) extend out, and the top ends of the telescopic shafts (131) are embedded into the concave bosses (292); the LED light source (310) emits light.

S310: the user sends control signals to the control unit through a mobile phone APP, a computer program, a touch screen or a control knob and the like, and the control unit adjusts the rotation angles of the concave flexible reflecting structure (270) and the beam fan (330), so that the illumination target area range and the projection brightness of the LED projection lamp are changed; wherein, each concave flexible reflecting structure (270) can be adjusted together, so that the concave degree of each concave flexible reflecting structure (270) is consistent, and each concave flexible reflecting structure (270) can be independently adjusted; the heat conducting ring (140) is connected with the folded foldable reflecting inner wall (220), and when the temperature of the heat conducting ring (140) reaches the threshold value, the semiconductor refrigerator starts to refrigerate and cool.

S320: the user selects a 'astigmatism mode', 'change inner wall', 'turn off LED projector' mode, the LED light source (310) turned off; the process goes to step S110.

S400: the telescopic rod (130) and the telescopic shaft (131) are retracted; the foldable reflective inner wall (220) and the foldable reflective concave side inner wall (260) are all retracted; replacing the inner wall; the process goes to step S110.

S500: the control unit is in a standby state; the process proceeds to step S110 according to the user instruction.