Outdoor projection lamp

Abstract

The utility model discloses an outdoor projection lamp which comprises a lamp body, the lamp body comprises a shell, a front cover arranged at the front end of the shell and a rear cover arranged at the rear end of the shell, a component sealing cavity is formed among the shell, the front cover and an end cover, and a heat dissipation cooling cavity is formed between the rear cover and the end cover; a DLP light machine is arranged in the component sealing cavity, a first heat conduction pipe is arranged on one side of the DLP light machine, a heat conduction plate making contact with the first heat conduction pipe is arranged on one side of the end cover, a radiator is arranged at the position, corresponding to the heat conduction plate, of the other side of the end cover, and the radiator is located in the heat dissipation cooling cavity. A heat dissipation fan is arranged at the position, corresponding to the heat dissipation device, of the tail portion of the rear cover. According to the utility model, the shell and the rear cover are divided into the component sealing cavity and the heat dissipation cooling cavity through the end cover, a double-cavity structural design is adopted, internal and external isolation is realized, a component isolation fully-sealed structural waterproof design is adopted, water vapor and dust are prevented from entering, and various complex outdoor environments can be easily handled.

Description

Technical Field

[0001] The utility model relates to the technical field of projection lamps, in particular to an outdoor projection lamp. Background Art

[0002] Projection lamps use the principle of optical projection and high-brightness light sources to project the pattern content on the LOGO light sheet onto the wall or ground of the building;

[0003] Conventional projectors use fans to draw ambient air into the casing, utilizing forced convection to cool internal components. However, in harsh outdoor environments, dust and moisture can severely damage internal components. The industry's standard approach involves adding a constant-temperature box to the exterior of the projector, but this undoubtedly increases the size of the product, making installation difficult and making it difficult to conceal the product.

[0004] Moreover, outdoor projection lamps are usually directly fixed and installed through a mounting bracket. After installation, it is not convenient to adjust the illumination angle, which affects the subsequent adjustment of the illumination angle and affects the use. Utility Model Content

[0005] The purpose of the present utility model is to provide an outdoor projection lamp to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an outdoor projection lamp, comprising a lamp body, the lamp body comprising a housing, a front cover provided at the front end of the housing, and a rear cover provided at the rear end of the housing, an end cover provided between the housing and the rear cover, a component sealing cavity formed between the housing, the front cover, and the end cover, and a heat dissipation cooling cavity formed between the rear cover and the end cover;

[0007] A DLP optical engine is provided inside the component sealed cavity, a first heat pipe is provided on one side of the DLP optical engine, a heat conducting plate in contact with the first heat conducting pipe is provided on one side of the end cover, a radiator is provided on the other side of the end cover at a position corresponding to the heat conducting plate, the radiator is located inside the heat dissipation cooling cavity, and a heat dissipation fan is provided at a position at the rear of the rear cover corresponding to the radiator.

[0008] Wherein, a mounting bracket is rotatably mounted on the outer side of the shell, and a driving component for driving the mounting bracket to rotate is provided at the bottom of the inner side of the shell;

[0009] The drive assembly includes a double-shaft asynchronous motor fixedly mounted on the bottom inner side of the housing, a first rotating shaft is provided at both ends of the double-shaft asynchronous motor, a driving gear is provided at the end of the first rotating shaft, the inner sides of both ends of the mounting frame are rotatably mounted on the outer side of the housing through a second rotating shaft, the free end of the second rotating shaft extends to the inside of the housing, and the free end of the second rotating shaft is fixedly sleeved with a driven gear meshing with the driving gear.

[0010] Wherein, a first waterproof rubber ring is provided at the connection between the shell and the front cover.

[0011] Wherein, a second waterproof rubber ring is provided at the connection between the end cover and the shell.

[0012] Wherein, a hollow opening is provided at a position on the surface of the end cover corresponding to the heat conducting plate, and the end cover covers the hollow opening.

[0013] Wherein, the front cover is a transparent glass lampshade.

[0014] Among them, a camera is provided at the center of one side of the front end of the inner shell, four infrared fill lights are evenly arranged around the camera at the front end of the inner shell, a ring-shaped atmosphere light is provided around the lens of the DLP light machine and the four infrared fill lights at the front end of the inner shell, and a PLC control board is provided on one side of the inner shell, and the PLC control board is electrically connected to the DLP light machine, camera, infrared fill light, atmosphere light and heat dissipation fan respectively.

[0015] Wherein, a second heat conducting pipe is provided inside the shell and is in contact with the PLC control board, and a tail end of the second heat conducting pipe is in contact with the heat conducting board.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model divides the housing and the back cover into a component sealing chamber and a heat dissipation cooling chamber through the end cover. The double-cavity structural design isolates the inside and outside, so that the components are isolated. The fully sealed structural waterproof design isolates water vapor and dust from entering, and can easily cope with various complex outdoor environments.

[0018] 2. This utility model adopts a unique heat dissipation structure. The heat generated by the DLP light engine is transferred to the heat conducting plate through the first heat conducting pipe, and then dissipated by the heat conducting plate through the radiator, avoiding the problem of heat accumulation in the sealed cavity of the components. It adopts a unique split heat dissipation structure: the heat source is collected and concentrated to the heat conducting plate through the first heat conducting pipe, and the heat conducting plate is connected to the radiator. The heat is then dissipated by forced convection through the heat dissipation fan. There is no need to add an additional constant temperature box outside the projection lamp, which facilitates the installation of the projection lamp.

[0019] 3. This utility model is a highly integrated projection lamp that integrates DLP light engine, camera, infrared fill light and atmosphere light;

[0020] 4. The utility model can drive the mounting frame to rotate relative to the housing through the driving assembly. During installation, the projection lamp is directly installed outdoors through the mounting frame. When the illumination angle of the lamp body needs to be adjusted, the first rotating shaft at both ends is driven to rotate by the double-axis asynchronous motor, and then the first rotating shaft drives the driving gear to rotate. The driving gear and the driven gear cooperate to drive the second rotating shaft to rotate, thereby driving the mounting frame to rotate relative to the lamp body, thereby achieving the purpose of adjusting the illumination angle of the lamp body. In this way, the illumination angle of the projection lamp can also be adjusted after the projection lamp is installed, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall axonometric structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the axonometric structure of the DLP optical engine of the utility model in the first direction;

[0025] Figure 5 This is a schematic diagram of the axonometric structure of the DLP optical engine of the utility model in the second direction;

[0026] Figure 6 This is a schematic diagram of the axonometric structure of the radiator of the utility model;

[0027] Figure 7 This is a left-side structural diagram of the present utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0029] Figure 9 This is a schematic diagram of the drive assembly structure of the utility model.

[0030] In the figure: 10. Lamp body; 11. Outer shell; 12. Front cover; 13. Back cover; 14. First waterproof rubber ring; 15. End cover; 16. Second waterproof rubber ring; 17. Component sealing chamber; 18. Heat dissipation cooling chamber; 20. DLP optical engine; 21. First heat pipe; 22. Second heat pipe; 30. Radiator; 31. Cooling fan; 40. Heat conduction plate; 50. PLC control board; 51. Camera; 52. Infrared fill light; 53. Atmosphere light; 60. Mounting bracket; 61. Double-axis asynchronous motor; 62. First rotating shaft; 63. Driving gear; 64. Driven gear; 65. Second rotating shaft. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] In addition, in the description of the utility model specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0035] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of the present invention include a particular feature, structure, or characteristic described in conjunction with that embodiment. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0036] See also Figure 1-9 The utility model provides a technical solution: an outdoor projection lamp, including a lamp body 10, the lamp body 10 includes a shell 11, a front cover 12 arranged at the front end of the shell 11, and a rear cover 13 arranged at the rear end of the shell 11, and an end cover 15 is provided between the shell 11 and the rear cover 13. Figure 2 As shown, a component sealing cavity 17 is formed between the housing 11, the front cover 12 and the end cover 15, and a heat dissipation cooling cavity 18 is formed between the rear cover 13 and the end cover 15. The housing 11 and the rear cover 13 are divided into the component sealing cavity 17 and the heat dissipation cooling cavity 18 by the end cover 15.

[0037] The dual-cavity structural design isolates the inside and outside, so that the components are isolated. The fully sealed structural waterproof design isolates the entry of water vapor and dust, and can easily cope with various complex outdoor environments.

[0038] In some embodiments, as Figure 4-6 As shown, a DLP optical engine 20 is provided inside the component sealed cavity 17, a first heat pipe 21 is provided on one side of the DLP optical engine 20, a heat conducting plate 40 in contact with the first heat conducting pipe 21 is provided on one side of the end cover 15, a radiator 30 is provided at a position corresponding to the heat conducting plate 40 on the other side of the end cover 15, the radiator 30 is located inside the heat dissipation cooling cavity 18, and a heat dissipation fan 31 is provided at a position corresponding to the radiator 30 at the tail of the rear cover 13. A unique heat dissipation structure is adopted, and the heat generated by the DLP optical engine 20 is transferred to the heat conducting plate 40 through the first heat conducting pipe 21, and then the heat of the heat conducting plate 40 is dissipated out through the radiator 30, avoiding the problem of heat accumulation in the component sealed cavity 17, and adopts a unique split heat dissipation structure: after the heat source is collected and concentrated to the heat conducting plate 40 through the first heat conducting pipe 21, the heat conducting plate 40 is connected to the radiator 30, and then the wind is generated by the heat dissipation fan 31 to form a forced convection heat dissipation method.

[0039] In some embodiments, as Figure 3 As shown, a mounting bracket 60 is rotatably mounted on the outer side of the housing 11 , and a driving assembly for driving the mounting bracket 60 to rotate is provided at the bottom of the inner side of the housing 11 . The mounting bracket 60 can be driven to rotate relative to the housing 11 through the driving assembly.

[0040] like Figure 8-9 As shown, the drive assembly includes a double-axle asynchronous motor 61 fixedly mounted on the bottom inner side of the housing 11, and a first rotating shaft 62 is provided at both ends of the double-axle asynchronous motor 61. A driving gear 63 is provided at the end of the first rotating shaft 62. The inner sides of both ends of the mounting frame 60 are rotatably mounted on the outside of the housing 11 through a second rotating shaft 65. The free end of the second rotating shaft 65 extends to the inside of the housing 11, and the free end of the second rotating shaft 65 is fixedly sleeved with a driven gear 64 that meshes with the driving gear 63.

[0041] It should be noted that during installation, the projection lamp is directly installed outdoors through the mounting bracket 60. When the illumination angle of the lamp body 10 needs to be adjusted, the first rotating shaft 62 at both ends is driven to rotate by the double-axis asynchronous motor 61, and then the first rotating shaft 62 drives the driving gear 63 to rotate. The driving gear 63 and the driven gear 64 cooperate to drive the second rotating shaft 65 to rotate, thereby driving the mounting bracket 60 to rotate relative to the lamp body 10, thereby achieving the purpose of adjusting the illumination angle of the lamp body 10. In this way, after the projection lamp is installed, the illumination angle of the projection lamp can also be adjusted, which is convenient for use.

[0042] In some embodiments, the first rotating shaft 62 and the second rotating shaft 65 are both damped rotating shafts. In the absence of the dual-axle asynchronous motor 61 driving or external force, the lamp body 10 and the mounting bracket 60 will not rotate relative to each other.

[0043] In some embodiments, as Figure 3 As shown, a first waterproof rubber ring 14 is provided at the connection between the housing 11 and the front cover 12 . By adding the first waterproof rubber ring 14 between the housing 11 and the front cover 12 , the sealing between the housing 11 and the front cover 12 is improved.

[0044] In some embodiments, as Figure 3 As shown, a second waterproof rubber ring 16 is provided at the connection between the end cover 15 and the housing 11 . By adding the second waterproof rubber ring 16 between the end cover 15 and the housing 11 , the sealing between the housing 11 and the end cover 15 is improved.

[0045] In some embodiments, as Figure 6 As shown, a hollow opening is provided on the surface of the end cover 15 at a position corresponding to the heat conducting plate 40, and the end cover 15 covers the hollow opening. When in use, the DLP optical engine 20 generates heat during operation, and then the heat generated by the DLP optical engine 20 is transferred to the heat conducting plate 40 through the first heat conducting pipe 21. Since there is a hollow opening between the heat conducting plate 40 and the radiator 30, the heat of the heat conducting plate 40 can be dissipated through the radiator 30, thereby avoiding the problem of heat accumulation in the component sealing cavity 17.

[0046] In some embodiments, as Figure 7 As shown, a camera 51 is provided at the center of one side of the front end of the inner shell 11, four infrared fill lights 52 are evenly provided around the camera 51 at the front end of the inner shell 11, and a ring-shaped atmosphere light 53 is provided around the lens of the DLP light machine 20 and the four infrared fill lights 52 at the front end of the inner shell 11. A PLC control board 50 is provided on one side of the inner shell 11, and the PLC control board 50 is electrically connected to the DLP light machine 20, the camera 51, the infrared fill light 52, the atmosphere light 53 and the heat dissipation fan 31 respectively. The PLC control board 50 can control the operation of the DLP light machine 20, the camera 51, the infrared fill light 52, the atmosphere light 53 and the heat dissipation fan 31 respectively, thereby obtaining a highly integrated projection lamp integrating the DLP light machine, the camera, the infrared fill light and the atmosphere light.

[0047] In some embodiments, the front cover 12 is a transparent glass lampshade, and the light emitted by the lens of the DLP light engine 20, the camera 51, the infrared fill light 52, and the atmosphere light 53 can all be displayed through the transparent glass lampshade.

[0048] In some embodiments, as Figure 5-6As shown, a second heat pipe 22 is provided inside the housing 11 to be bonded to the PLC control board 50, and the tail end of the second heat pipe 22 is bonded to the heat conducting plate 40. When the PLC control board 50 and all the lights are working, heat is generated, and then the heat is transferred to the heat conducting plate 40 through the second heat pipe 22. Since there is a hollow opening between the heat conducting plate 40 and the radiator 30, the heat of the heat conducting plate 40 can be dissipated through the radiator 30, thereby avoiding the problem of heat accumulation in the component sealed cavity 17.

[0049] During use, the housing 11 and the back cover 13 are divided into a component sealed cavity 17 and a heat dissipation cooling cavity 18 by the end cover 15, and the DLP optical engine 20, the PLC control board 50, the camera 51, the infrared fill light 52, and the atmosphere light 53 are all arranged in the component sealed cavity 17. When the components are working, heat is generated, and then the generated heat is transferred to the heat conduction plate 40 through the first heat conduction pipe 21 or the second heat conduction pipe 22, and then the heat of the heat conduction plate 40 is dissipated through the radiator 30 to avoid the problem of heat accumulation in the component sealed cavity 17. A unique split heat dissipation structure is adopted: after the heat source is collected and concentrated to the heat conduction plate 40 through the first heat conduction pipe 21 or the second heat conduction pipe 22, the heat conduction plate 40 and the radiator 30 are connected through a hollow opening, and then the wind is generated by the heat dissipation fan 31 to form a forced convection heat dissipation method, which has a good heat dissipation effect.

[0050] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. An outdoor projection lamp, comprising a lamp body, characterized in that: The lamp body includes a shell, a front cover provided at the front end of the shell, and a rear cover provided at the rear end of the shell. An end cover is provided between the shell and the rear cover. A component sealing cavity is formed between the shell, the front cover, and the end cover. A heat dissipation cooling cavity is formed between the rear cover and the end cover. A DLP optical engine is provided inside the component sealed cavity, a first heat pipe is provided on one side of the DLP optical engine, a heat conducting plate in contact with the first heat conducting pipe is provided on one side of the end cover, a radiator is provided on the other side of the end cover at a position corresponding to the heat conducting plate, the radiator is located inside the heat dissipation cooling cavity, and a heat dissipation fan is provided at a position at the rear of the rear cover corresponding to the radiator.

2. The outdoor projection lamp according to claim 1, characterized in that: A mounting bracket is rotatably mounted on the outer side of the shell, and a driving component for driving the mounting bracket to rotate is provided at the bottom of the inner side of the shell.

3. The outdoor projection lamp according to claim 2, characterized in that: The drive assembly includes a double-shaft asynchronous motor fixedly mounted on the bottom inner side of the shell, a first rotating shaft is provided at both ends of the double-shaft asynchronous motor, a driving gear is provided at the end of the first rotating shaft, the inner sides of both ends of the mounting frame are rotatably mounted on the outer side of the shell through a second rotating shaft, the free end of the second rotating shaft extends to the inside of the shell, and the free end of the second rotating shaft is fixedly sleeved with a driven gear meshing with the driving gear.

4. The outdoor projection lamp according to claim 1, wherein: A first waterproof rubber ring is provided at the connection between the shell and the front cover.

5. The outdoor projection lamp according to claim 4, characterized in that: A second waterproof rubber ring is provided at the connection between the end cover and the shell.

6. The outdoor projection lamp according to claim 1, characterized in that: A hollow opening is provided on the surface of the end cover at a position corresponding to the heat conducting plate, and the end cover covers the hollow opening.

7. The outdoor projection lamp according to claim 1, characterized in that: The front cover is a transparent glass lampshade.

8. The outdoor projection lamp according to claim 1, wherein: A camera is provided at the center of one side of the front end of the interior of the shell, a plurality of infrared fill lights are evenly arranged around the camera at the front end of the interior of the shell, and a ring-shaped atmosphere light is provided at the front end of the interior of the shell around the lens of the DLP light machine and the four infrared fill lights; A PLC control board is provided on one side of the interior of the shell, and the PLC control board is electrically connected to the DLP light engine, camera, infrared fill light, atmosphere light and heat dissipation fan respectively.

9. The outdoor projection lamp according to claim 8, characterized in that: A second heat conducting pipe is provided inside the shell and is in contact with the PLC control board. The tail end of the second heat conducting pipe is in contact with the heat conducting board.

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