CN218273063U

CN218273063U - Heat insulation and dissipation device for illumination reflector of LCD projector

Info

Publication number: CN218273063U
Application number: CN202123214070.1U
Authority: CN
Inventors: 陈灵
Original assignee: Shenzhen Liangzi Photoelectric Technology Co ltd
Current assignee: Shenzhen Liangzi Photoelectric Technology Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2023-01-10
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a LCD projector illumination speculum's thermal-insulated heat abstractor is applied to on the LCD projector, including heat diffusion structure and heat insulating board, the heat insulating board is located hold in the cavity, just the heat insulating board is located between lithium cell and the illumination speculum, be equipped with the ventilation clearance between illumination speculum and the heat insulating board, the heat diffusion structure is located in the ventilation clearance, just the heat diffusion structure laminating in the relative high temperature region department at the illumination speculum back, the ventilation clearance is aimed at cooling fan's income wind gap. The utility model discloses a thermal-insulated ambient temperature that makes the lithium cell locate that makes of heat insulating board is close the normal atmospheric temperature to the local high temperature of illumination speculum can not lead to the fact very big potential safety hazard for the lithium cell, is showing the radiating efficiency who has improved the thermal diffusion structure simultaneously under ventilation clearance and cooling fan's effect, and the thermal diffusion structure cooling effect is showing, effectively guarantees the safety of other parts of projector inside and illumination speculum self.

Description

Heat insulation and dissipation device for illumination reflector of LCD projector

Technical Field

The utility model relates to a projector technical field especially relates to a thermal-insulated heat abstractor of LCD projector illumination speculum.

Background

In terms of the overall optical efficiency of the current single LCD projection technology, when the designed brightness is higher, such as 200Lm (lumens) or more, the free-form surface condenser inevitably generates local bright spots on the illumination reflector, which brings about the consequence that the temperature of the local bright spots of the illumination reflector is extremely high, and if effective heat diffusion and temperature reduction are not performed, the safety of other components in the projector and the illumination reflector itself is seriously threatened. If a lithium battery is arranged near the lighting reflector, the heat dissipation and temperature reduction of the lighting reflector are still far from enough. Because it is impossible to provide a huge heat sink to completely dissipate the local high temperature of the illuminating reflector for the actual product conditions including but not limited to cost performance, volume, assembly complexity and the like, the local temperature of the illuminating reflector is still high, and the lithium battery installed near the illuminating reflector has a great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough with regard to overcoming prior art, provides a LCD projector illumination speculum's thermal-insulated heat abstractor, the utility model discloses a thermal insulation board is thermal-insulated to make the ambient temperature that the lithium cell is located be close the normal atmospheric temperature to illumination speculum's local high temperature can not lead to the fact very big potential safety hazard for the lithium cell, is showing the radiating efficiency who has improved the heat diffusion structure simultaneously under ventilation gap and cooling fan's effect, and the heat diffusion structure cooling effect is showing, effectively guarantees the safety of other parts and illumination speculum self of projector inside.

In order to achieve the above object, the present invention provides a heat insulation and dissipation device for an illumination reflector of an LCD projector, which is applied to an LCD projector, wherein the LCD projector has a casing, a lithium battery and an LCD optical machine, the LCD optical machine is located in the casing, and a containing cavity is defined between an inner wall of the casing and an outer wall of the LCD optical machine; the LCD optical engine is provided with an optical engine shell, an illumination reflector and a heat dissipation fan, wherein an illumination reflector mounting opening is formed in the optical engine shell, the illumination reflector is mounted at the illumination reflector mounting opening, the lithium battery is located in the accommodating cavity, and the lithium battery is located nearby the illumination reflector;

the heat insulation and heat dissipation device of the LCD projector illumination reflector comprises a heat diffusion structure and a heat insulation plate, wherein the heat insulation plate is located in the containing cavity, the heat insulation plate is located between the lithium battery and the illumination reflector, a ventilation gap is arranged between the illumination reflector and the heat insulation plate, the heat diffusion structure is located in the ventilation gap, the heat diffusion structure is attached to a relative high-temperature region at the back of the illumination reflector, and the ventilation gap is aligned to an air inlet of a heat dissipation fan.

Preferably, the heat diffusion structure is any one of a finned radiator, a heat pipe radiator and a heat conduction diffusion sheet.

The utility model has the advantages that:

1. the utility model discloses set up the heat insulating board between illumination speculum and lithium cell, it makes the local high temperature of illumination speculum can not cause the ambient temperature that the lithium cell was located too high to insulate against heat through the heat insulating board for the ambient temperature that the lithium cell was located is close normal atmospheric temperature, thereby the local high temperature of illumination speculum can not cause very big potential safety hazard for the lithium cell.

2. The utility model discloses be equipped with the ventilation clearance between heat insulating board and illumination speculum, hot diffusion structure is located the ventilation clearance, and the ventilation clearance aims at radiator fan's income wind gap, is showing the radiating efficiency who has improved hot diffusion structure under radiator fan's effect, and hot diffusion structure cooling effect is showing, effectively guarantees the safety of other parts of projector inside and illumination speculum self.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of fig. 1 cut away.

The above reference numerals:

the solar lighting device comprises a shell 1, a lithium battery 2, an optical machine shell 3, an illumination reflector 4, a thermal diffusion structure 5, a thermal insulation plate 6 and a cooling fan 7.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model is usually placed when in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the heat insulating and dissipating device for an illumination mirror of an LCD projector according to this embodiment is applied to an LCD projector, where the LCD projector includes a casing 1, a lithium battery 2, and an LCD optical engine, the LCD optical engine is located in the casing 1, and a containing cavity is defined between an inner wall of the casing 1 and an outer wall of the LCD optical engine; the LCD ray apparatus has ray apparatus casing 3, illumination speculum 4 and cooling blower 7, be equipped with the illumination speculum installing port on the ray apparatus casing 3, illumination speculum 4 install in illumination speculum installing port department, lithium cell 2 is located hold the cavity, just lithium cell 2 is located near illumination speculum 4. The LCD optical device and LCD projector according to this embodiment are disclosed in patent documents CN202121067801.1 and CN202110545011.8, which are not limited in this respect.

This embodiment LCD projector reflector's thermal-insulated heat abstractor includes thermal diffusion structure 5 and heat insulating board 6, heat insulating board 6 is located hold in the cavity, just heat insulating board 6 is located between lithium cell 2 and the illumination speculum 4, be equipped with the ventilation clearance between illumination speculum 4 and the heat insulating board 6, thermal diffusion structure 5 is located in the ventilation clearance, just thermal diffusion structure 5 laminate in the relative high temperature region (corresponding to local bright spot region on the light path promptly) department at the illumination speculum 4 back, the ventilation clearance is aimed at radiator fan 7's income wind gap.

This embodiment sets up heat insulating board 6 between illumination speculum 4 and lithium cell 2, insulates against heat through heat insulating board 6 and makes illumination speculum 4's local high temperature can not cause the ambient temperature that lithium cell 2 located too high for the ambient temperature that lithium cell 2 located is close the normal atmospheric temperature, thereby illumination speculum 4's local high temperature can not cause very big potential safety hazard for lithium cell 2.

This embodiment is equipped with the ventilation clearance between heat insulating board 6 and illumination speculum 4, and heat diffusion structure 5 is located the ventilation clearance, and the ventilation clearance aims at the income wind gap of radiator fan 7, under radiator fan's effect, is showing the radiating efficiency who has improved heat diffusion structure 5, and the cooling effect of heat diffusion structure 5 is showing, effectively guarantees the safety of other parts of projector inside and illumination speculum 4 self.

In this embodiment, the thermal diffusion structure 5 is any one of a fin radiator, a heat pipe radiator, and a heat conduction diffusion sheet, which is not limited in particular.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A heat insulation and heat dissipation device of an illumination reflector of an LCD projector is applied to the LCD projector, the LCD projector is provided with a machine shell (1), a lithium battery (2) and an LCD light machine, the LCD light machine is positioned in the machine shell (1), and a containing cavity is defined between the inner wall of the machine shell (1) and the outer wall of the LCD light machine; the LCD light machine is provided with a light machine shell (3), an illumination reflector (4) and a cooling fan (7), wherein an illumination reflector mounting opening is formed in the light machine shell (3), the illumination reflector (4) is mounted at the illumination reflector mounting opening, the lithium battery (2) is located in the accommodating cavity, and the lithium battery (2) is located near the illumination reflector (4); the method is characterized in that:

LCD projector illumination speculum's thermal-insulated heat abstractor includes heat diffusion structure (5) and heat insulating board (6), heat insulating board (6) are located hold in the cavity, just heat insulating board (6) are located between lithium cell (2) and illumination speculum (4), be equipped with the ventilation clearance between illumination speculum (4) and heat insulating board (6), heat diffusion structure (5) are located in the ventilation clearance, just heat diffusion structure (5) laminate in the relative high temperature region department at illumination speculum (4) back, the ventilation clearance is aimed at the income wind gap of cooling fan (7).

2. The heat insulating and dissipating device of an illumination reflector of an LCD projector as claimed in claim 1, wherein the heat diffusing structure (5) is any one of a finned heat sink, a heat pipe heat sink, and a heat conducting and diffusing sheet.