CN219799974U

CN219799974U - Projection equipment heat abstractor with optical reference plane

Info

Publication number: CN219799974U
Application number: CN202321173097.7U
Authority: CN
Inventors: 胡洋
Original assignee: Guangzhou Xiaoying Imaging Technology Co ltd
Current assignee: Guangzhou Xiaoying Imaging Technology Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-03
Anticipated expiration: 2033-05-15

Abstract

The utility model discloses a projection equipment heat abstractor with an optical reference plane, which comprises a radiator, a shell, a heat radiation fan and a fan protection shell, wherein the radiator is arranged on the shell; the radiator comprises a transverse wall and a vertical wall which extends along the vertical direction and is vertical to the transverse wall; the upper end of the transverse wall is provided with an optical reference surface, and the lower end of the transverse wall is provided with a plurality of bottom heat dissipation fins extending downwards; the shell is connected with the radiator, and an optical reference surface, a vertical wall and the shell of the radiator form a projection device accommodating cavity; the fan protection shell is matched with a vertical wall of the radiator to form a radiating cavity, the radiating fan is positioned in the radiating cavity, and a plurality of side radiating fins are arranged on the wall surface of the vertical wall facing the radiating cavity; and the fan protection shell is provided with an air vent groove. The utility model can reduce the volume, save the occupied space, increase the heat dissipation area, improve the heat dissipation effect and save the cost.

Description

Projection equipment heat abstractor with optical reference plane

Technical Field

The utility model relates to the field of a radiating device of projection equipment, in particular to a radiating device of projection equipment with an optical reference plane.

Background

As is well known, since projection devices such as projection lamps and projectors can generate a large amount of heat during operation, the existing heat dissipation devices of projection devices often adopt a housing, and a projection device accommodating cavity and an optical reference surface are formed in the housing, the projection device accommodating cavity is used for accommodating the projection device of the projection device, the optical reference surface is used for fixing a lens and the like of the projection device, and meanwhile, a radiator is arranged in the housing and plays a role in heat dissipation by means of the radiator.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide the projection equipment heat dissipation device with the optical reference surface, which adopts the combination of the radiator, the shell, the heat dissipation fan and the fan protection shell, and integrally forms the optical reference surface, the bottom heat dissipation fins and the side heat dissipation fins on the radiator, so that the volume of the heat dissipation device can be reduced, and the heat dissipation effect can be improved.

The utility model adopts the following technical scheme:

a projection equipment heat abstractor with optical reference plane, including radiator, body, radiator fan, and fan protective housing; the radiator comprises a transverse wall and a vertical wall which extends along the vertical direction and is vertical to the transverse wall; the upper end of the transverse wall is provided with an optical reference surface, and the lower end of the transverse wall is provided with a plurality of bottom heat dissipation fins extending downwards; the shell is connected with the radiator, and an optical reference surface, a vertical wall and the shell of the radiator form a projection device accommodating cavity; the fan protection shell is matched with a vertical wall of the radiator to form a radiating cavity, the radiating fan is positioned in the radiating cavity, and a plurality of side radiating fins are arranged on the wall surface of the vertical wall facing the radiating cavity; and the fan protection shell is provided with an air vent groove.

Each side radiating fin comprises a main radiating fin body and protruding parts which are respectively arranged at two ends of the main radiating fin body in a one-to-one correspondence manner and protrude outwards relative to the main radiating fin body, and the protruding parts of the plurality of side radiating fins of the vertical wall enclose a containing area for containing the radiating fan.

The radiating fan is abutted against the main radiating fin body of the side radiating fin.

The fan protection shell is fixed on the radiator through a first fastening screw.

The projection device accommodating cavity is used for accommodating a projection device of the projection device, and the projection device of the projection device comprises a light emitting element, a collecting lens unit, a film, a refraction lens unit and a reflecting piece; the light-emitting element, the condenser unit, the film, the refraction lens unit and the reflecting piece are sequentially arranged; the reflecting piece is provided with a reflecting curved surface; the condensing lens unit is used for condensing the light rays emitted by the light-emitting element and transmitting the condensed light rays to the film; the refraction lens unit is used for refracting the light rays transmitted from the film to a reflection curved surface of the reflection piece; the reflecting curved surface of the reflecting piece is used for reflecting light rays to the external image display interface and forming an image on the external image display interface; the shell is provided with a light emergent area for emitting light reflected by the reflecting curved surface.

The optical reference surface is provided with a lens fixing seat, and the refraction lens unit is connected to the lens fixing seat in a threaded manner.

The lens fixing seat is fixed on the radiator through a second fastening screw.

The rubber sheet is arranged on a supporting frame, an opening for the supporting frame to penetrate is formed in the shell, a connecting plate is arranged at the top end of the supporting frame, and the connecting plate is located outside the shell and is fixed on the shell in a detachable mode.

The connecting plate is fixed on the shell through a locking screw; the connecting plate is provided with an adjusting groove, the shell is provided with a threaded hole, and the locking screw is inserted into the adjusting groove and is in threaded connection with the threaded hole; the extending direction of the adjusting groove is consistent with the arrangement direction of the light-emitting element, the condensing lens unit, the film and the refracting lens unit.

A plurality of ventilation grooves are formed in the fan protection shell.

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

the utility model provides a projection equipment heat dissipating double-fuselage with optical reference plane, it is through adopting the combination of radiator, body, radiator fan, and fan protective housing, and take the optical reference plane, bottom-mounted radiating fin, side-mounted radiating fin integrally formed on radiator, utilize optical reference plane, vertical wall and body of the radiator to enclose into the holding cavity of the projection equipment, thus while having optical reference plane and having heat dissipating function concurrently, compared with existing projection equipment heat dissipating double-fuselage that separates radiator and optical reference plane and places the radiator in the holding cavity of the projection equipment, can reduce the volume of the heat dissipating double-fuselage, thus can save the space occupied, and because the bottom-mounted radiating fin of the radiator is located outside the holding cavity of the projection equipment, the heat produced while the projection equipment works can be radiated through bottom-mounted radiating fin and side-mounted radiating fin, thus can increase the radiating area, raise the radiating effect; through the cooperation of reasonable radiator fan and radiator that sets up, can further improve the radiating effect, in addition, still convenient in the installation to can practice thrift installation cost.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a cross-sectional view of the heat sink mated with the housing;

FIG. 3 is a schematic diagram of a heat sink;

FIG. 4 is an exploded view of the housing and the support frame;

wherein, 1, the light-emitting component; 2. a condenser unit; 3. film; 4. a refractive lens unit; 5. a reflecting member; 7. a reflective curved surface; 8. a support frame; 9. an opening; 10. a connecting plate; 11. locking a screw; 12. an adjustment tank; 13. a threaded hole; 14. anti-reverse mounting convex columns; 15. a connecting screw; 16. a through hole; 17. a mounting hole; 18. a receiving groove; 19. a concave groove; 20. a surrounding wall; 21. a heat radiation fan; 22. a fan protective case; 23. a vent groove; 30. a heat sink; 31. a transverse wall; 32. a vertical wall; 33. an optical reference surface; 34. bottom heat dissipation fins; 35. a projection device accommodation chamber; 36. a heat dissipation cavity; 37. side heat dissipation fins; 38. a boss; 39. a receiving area; 40. a housing; 41. a protective shell; 42. a reflective member protective case; 51. the lens fixing seat.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

As shown in fig. 1 to 4, a projection device heat dissipating apparatus with an optical reference plane includes a heat sink 30, a housing 40, a heat dissipating fan 21, and a fan protecting case 22; the radiator 30 is integrally formed and comprises a transverse wall 31 and a vertical wall 32 extending in the vertical direction and perpendicular to the transverse wall 31; an optical reference surface 33 is arranged at the upper end of the transverse wall 31, and a plurality of bottom heat dissipation fins 34 extending downwards are arranged at the lower end of the transverse wall 31; the housing 40 is connected with the radiator 30, and the optical reference surface 33, the vertical wall 32 and the housing 40 of the radiator 30 enclose a projection device accommodating cavity 35; the fan protection shell 22 and the vertical wall 32 of the radiator 30 are matched to form a radiating cavity 36, the radiating fan 21 is positioned in the radiating cavity 36, and a plurality of side radiating fins 37 are arranged on the wall surface of the vertical wall 32 facing the radiating cavity 36; the fan protection shell 22 is provided with an air vent groove 23.

The utility model provides a projection equipment heat dissipating double-fuselage with optical reference surface, because the optical reference surface 33, bottom-mounted radiating fin 34, side-mounted radiating fin 37 are integrally formed on radiator 30, and utilize the optical reference surface 33, vertical wall 32 and body 40 of radiator 30 to enclose and form the holding cavity 35 of the projection equipment, thus while forming the optical reference surface 33 and having the function of radiating, compared with the existing projection equipment heat dissipating double-fuselage that separates radiator 30 and optical reference surface 33 and places radiator 30 in holding cavity 35 of the projection equipment, can reduce the volume of the heat dissipating double-fuselage, thus can save the space occupied, and through setting up a plurality of bottom-mounted radiating fins 34 that extend downward on the lower end of the horizontal wall 31, and set up a plurality of side-mounted radiating fins 37 on the wall surface that the vertical wall 32 faces the radiating cavity 36, and because the bottom-mounted radiating fin 34 of radiator 30 is located outside the holding cavity 35 of the projection equipment, make the heat produced when the projection equipment works can be conducted to bottom-mounted fin 34 and side-mounted fin 37, and via bottom-mounted radiating fin 34 and side-mounted radiating fin 37, can increase the radiating area; through the cooperation of reasonable setting radiator fan 21 and radiator 30, the flow of accessible radiator fan 21 acceleration air to take away the heat fast, can further improve the radiating effect, in addition, still be convenient for the installation, and can practice thrift the installation cost.

Each side radiating fin 37 comprises a main radiating fin body and protruding parts 38 which are respectively arranged at two ends of the main radiating fin body in a one-to-one correspondence manner and protrude outwards relative to the main radiating fin body, and the protruding parts 38 of the plurality of side radiating fins 37 of the vertical wall 32 enclose a containing area 39 for containing the radiating fan 21. The radiator fan 21 is abutted against the main fin body of the side radiator fin 37. By adopting the structure, the heat dissipation effect can be improved, the space position can be fully utilized, and the volume is further reduced.

The fan protection shell 22 is fixed on the radiator 30 through a first fastening screw, so that the fan protection shell 22 and the radiator 30 are convenient to assemble and disassemble.

The projection device accommodating chamber 35 accommodates a projection device of a projection apparatus including a light emitting element 1, a condenser lens unit 2, a film 3, a refractive lens unit 4, and a reflecting member 5; the light-emitting element 1, the condenser unit 2, the film 3, the refractive lens unit 4 and the reflector 5 are arranged in sequence; the reflecting piece 5 is provided with a reflecting curved surface 7; the condensing lens unit 2 is used for condensing the light emitted by the light-emitting element 1 and transmitting the condensed light to the film 3; the refractive lens unit 4 is used for refracting the light rays transmitted from the film 3 to the reflective curved surface 7 of the reflector 5; the reflecting curved surface 7 of the reflecting piece 5 is used for reflecting light rays to an external image display interface and forming an image on the external image display interface; the housing 40 is provided with a light emitting area for emitting the light reflected by the reflecting curved surface 7. The external image display interface is a screen, a wall surface and the like which can be used for image projection from the outside. In the projection process, the light-emitting element 1 emits light, and the light is condensed by the condenser unit 2, so that the light passes through the image of the film 3, then passes through the refraction lens unit 4, the refraction lens unit 4 is used for refracting the light, so that the light is just refracted on the reflecting curved surface 7 of the reflecting piece 5, the light is reflected out through the reflecting curved surface 7, and the image is displayed on an external image display interface. The projection device is accommodated in the projection device accommodation chamber 35, thereby achieving a dust-proof and protective function.

The optical reference surface 33 is provided with a lens fixing seat 51, and the refractive lens unit 4 is screwed on the lens fixing seat 51. Thereby facilitating the installation between the refractive lens unit 4 and the lens holder 51. The lens fixing base 51 is fixed on the radiator 30 by a second fastening screw, so as to be convenient for fixing the lens fixing base 51.

The film 3 is installed on a support frame 8, an opening 9 through which the support frame 8 passes is formed in the shell 40, a connecting plate 10 is arranged at the top end of the support frame 8, and the connecting plate 10 is located outside the shell 40 and is fixed on the shell 40 in a detachable mode. In the process of replacing the film 3, only the connecting plate 10 is required to be detached from the shell 40, the old film 3 and the supporting frame 8 are removed from the opening 9, the other supporting frame 8 provided with the new film 3 is extended into the accommodating cavity 35 of the projection device through the opening 9, and the connecting plate 10 of the supporting frame 8 is fixed on the shell 40, so that the film 3 can be replaced, the projection image can be replaced, the replacement operation is simple, convenient and quick, the replacement time is saved, the replacement is convenient at any time, the manpower and material resources are saved, and the replacement cost is reduced.

The connecting plate 10 is fixed on the shell 40 through a locking screw 11; an adjusting groove 12 is formed in the connecting plate 10, a threaded hole 13 is formed in the shell 40, and the locking screw 11 is inserted into the adjusting groove 12 and is in threaded connection with the threaded hole 13; the extending direction of the adjusting groove 12 is consistent with the arrangement direction of the light emitting element 1, the condenser lens unit 2, the film 3, and the refractive lens unit 4. In the process of fixing the connecting plate 10, the locking screw 11 can be penetrated in different areas of the adjusting groove 12, so that the front and back positions of the supporting frame 8 and the film 3 can be finely adjusted to focus and image, and the definition of the projection image can be adjusted.

The shell 40 is provided with an anti-reverse-mounting convex column 14 which is arranged on one side of the opening 9 and protrudes upwards. In the process of installing the support frame 8, the front surface of the support frame 8 can face the anti-reverse mounting convex column 14 through the identification function of the anti-reverse mounting convex column 14, so that the phenomenon of reverse mounting of the support frame 8 is avoided.

The cross section of the connecting plate 10 is larger than the cross section of the opening 9, and the connecting plate 10 covers the opening 9.

The connecting plate 10 is connected to the support frame 8 through a connecting screw 15, so that the connection of the connecting plate 10 and the support frame 8 is facilitated. The connecting plate 10 is provided with a through hole 16, the supporting frame 8 is provided with a mounting hole 17, the wall of the mounting hole 17 is provided with internal threads, and the connecting screw 15 is arranged in the through hole 16 in a penetrating way and is in threaded connection with the mounting hole 17. Specifically, the connecting plate 10 is connected to the supporting frame 8 through two connecting screws 15, two through holes 16 corresponding to the two connecting screws 15 one by one are provided on the connecting plate 10, two mounting holes 17 corresponding to the two connecting screws 15 one by one are provided on the supporting frame 8, and the connecting screws 15 are inserted into the corresponding through holes 16 and are in threaded connection with the corresponding mounting holes 17. By adopting the structure, the connection stability of the connection plate 10 and the support frame 8 can be improved.

Specifically, the through hole 16 is located between the two adjustment slots 12. The connecting screw 15 is a countersunk head screw, and the through hole 16 is a counter bore.

The support frame 8 is provided with a containing groove 18, and the film 3 is fixed in the containing groove 18 in an adhesive manner, so that the film 3 is conveniently fixed. Specifically, the film 3 is fixed in the accommodating groove 18 by ultraviolet curing adhesive in an adhesive manner.

Specifically, the accommodating groove 18 includes a through groove and an embedding groove communicated with the through groove, the through groove penetrates through two end faces of the supporting frame 8, the embedding groove surrounds the periphery of the through groove, and the edge of the film 3 is embedded by the embedding groove. The end of the embedded groove far away from the collecting lens unit 2 is formed into a blind end, and one end of the embedded groove near the collecting lens unit 2 penetrates through the supporting frame 8 and is near one end face of the collecting lens unit 2. Of course, other structures of the receiving groove 18 can be adopted, so long as the film 3 can be fixedly installed. However, the above structure of the accommodating groove 18 is the best mode of the present utility model, and the film 3 can be fixedly installed and processed conveniently.

The shell 40 is further provided with a concave groove 19, the opening 9 penetrates through the bottom wall of the concave groove 19, and the bottom wall of the concave groove 19 is provided with a surrounding wall 20 which extends around the edge of the opening 9 and is used for supporting the connecting plate 10, so that the supporting effect on the connecting plate 10 can be improved.

In the embodiment, the light emitting element 1 is an LED lamp, and any light emitting component that can emit light can be used for the light emitting element 1, however, the light emitting element 1 is an LED lamp, which is an optimal embodiment of the present utility model, and the light emitting effect can be ensured.

The fan protection shell 22 is provided with a plurality of ventilation grooves 23, so that air can be conveniently introduced and discharged through the ventilation grooves 23, and air circulation inside the heat dissipation cavity 36 is kept smooth.

Specifically, the cooling fan 21 is fixed on the vertical wall 32 of the radiator 30 by a third fastening screw, the light emitting element 1 is fixed on the vertical wall 32 of the radiator 30 by a fourth fastening screw, the housing 40 includes a reflector protecting shell 42 and a protecting shell 41, the reflector protecting shell 42 is connected to one end of the radiator 30 away from the cooling fan 21, the protecting shell 41 is connected to the radiator 30 and the reflector protecting shell 42, and the reflector 5 is installed in the reflector protecting shell 42. By adopting the above structure, the processing and manufacturing of the housing 40 can be facilitated.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. A projection device heat sink with an optical reference surface, characterized in that: comprises a radiator, a shell, a radiating fan and a fan protecting shell; the radiator comprises a transverse wall and a vertical wall which extends along the vertical direction and is vertical to the transverse wall; the upper end of the transverse wall is provided with an optical reference surface, and the lower end of the transverse wall is provided with a plurality of bottom heat dissipation fins extending downwards; the shell is connected with the radiator, and an optical reference surface, a vertical wall and the shell of the radiator form a projection device accommodating cavity; the fan protection shell is matched with a vertical wall of the radiator to form a radiating cavity, the radiating fan is positioned in the radiating cavity, and a plurality of side radiating fins are arranged on the wall surface of the vertical wall facing the radiating cavity; and the fan protection shell is provided with an air vent groove.

2. The projection device heat sink with optical reference surface of claim 1, wherein: each side radiating fin comprises a main radiating fin body and protruding parts which are respectively arranged at two ends of the main radiating fin body in a one-to-one correspondence manner and protrude outwards relative to the main radiating fin body, and the protruding parts of the plurality of side radiating fins of the vertical wall enclose a containing area for containing the radiating fan.

3. The projection device heat sink with optical reference surface of claim 2, wherein: the radiating fan is abutted against the main radiating fin body of the side radiating fin.

4. The projection device heat sink with optical reference surface of claim 1, wherein: the fan protection shell is fixed on the radiator through a first fastening screw.

5. The projection device heat sink with optical reference surface of claim 1, wherein: the projection device accommodating cavity is used for accommodating a projection device of the projection device, and the projection device of the projection device comprises a light emitting element, a collecting lens unit, a film, a refraction lens unit and a reflecting piece; the light-emitting element, the condenser unit, the film, the refraction lens unit and the reflecting piece are sequentially arranged; the reflecting piece is provided with a reflecting curved surface; the condensing lens unit is used for condensing the light rays emitted by the light-emitting element and transmitting the condensed light rays to the film; the refraction lens unit is used for refracting the light rays transmitted from the film to a reflection curved surface of the reflection piece; the reflecting curved surface of the reflecting piece is used for reflecting light rays to the external image display interface and forming an image on the external image display interface; the shell is provided with a light emergent area for emitting light reflected by the reflecting curved surface.

6. The projection device heat sink with optical reference surface of claim 5, wherein: the optical reference surface is provided with a lens fixing seat, and the refraction lens unit is connected to the lens fixing seat in a threaded manner.

7. The projection device heat sink with optical reference surface of claim 6, wherein: the lens fixing seat is fixed on the radiator through a second fastening screw.

8. The projection device heat sink with optical reference surface of claim 5, wherein: the rubber sheet is arranged on a supporting frame, an opening for the supporting frame to penetrate is formed in the shell, a connecting plate is arranged at the top end of the supporting frame, and the connecting plate is located outside the shell and is fixed on the shell in a detachable mode.

9. The projection device heat sink with optical reference surface of claim 8, wherein: the connecting plate is fixed on the shell through a locking screw; the connecting plate is provided with an adjusting groove, the shell is provided with a threaded hole, and the locking screw is inserted into the adjusting groove and is in threaded connection with the threaded hole; the extending direction of the adjusting groove is consistent with the arrangement direction of the light-emitting element, the condensing lens unit, the film and the refracting lens unit.

10. The projection device heat sink with optical reference surface of claim 1, wherein: a plurality of ventilation grooves are formed in the fan protection shell.