CN220752501U

CN220752501U - Active refrigeration type double-drive internal circulation heat dissipation LCD projector

Info

Publication number: CN220752501U
Application number: CN202321759121.5U
Authority: CN
Inventors: 张龙
Original assignee: Shenzhen Huaying Optics And Optoelectronics Co ltd
Current assignee: Shenzhen Huaying Optics And Optoelectronics Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2024-04-09
Anticipated expiration: 2033-07-06

Abstract

The utility model relates to an active refrigeration type double-drive internal circulation heat dissipation LCD projector, which comprises a shell, wherein a projection channel is arranged in the shell; the device also comprises a reflection module arranged in the projection channel, an LCD panel module arranged at the light inlet end of the projection channel, a light source module arranged at the light inlet side of the LCD panel module, heat insulation glass arranged between the LCD panel module and the light source module, and a lens module arranged at the light outlet end of the projection channel; a heat dissipation channel which is communicated with the projection channel in a crossing way is also arranged in the shell; one end of the heat dissipation channel is provided with a refrigeration module, and both ends of the heat dissipation channel are provided with circulating fans; the LCD panel module is positioned on the heat dissipation channel and divides the heat dissipation channel into annular channels, and a gap is arranged between the LCD panel module and the heat insulation glass; when the projector is in operation, the refrigerating module can timely process heat dissipation of the high-brightness LCD panel module, and the projector is simple in overall structure and compact in layout, and can quickly absorb heat generated by the LCD panel module in time when the projector is in power increase.

Description

Active refrigeration type double-drive internal circulation heat dissipation LCD projector

Technical Field

The utility model relates to the technical field of projectors, in particular to an active refrigeration type double-drive internal circulation heat dissipation LCD projector.

Background

The prior art is that the inside of the projector circulates through the set air channel, cold air is blown to the LCD by using a fan, the heat of the LCD is brought to the fins on the inner wall of the metal radiator, meanwhile, the temperature of the internal circulating air is reduced, the heat is transferred to the outer side of the radiator by the metal radiator, the heat of the outer side is taken away by the cold air brought by the external fan of the projector, and the projector is sealed while the heat dissipation of the LCD is realized. However, because of the fixed existence of the temperature difference between the ambient temperature and the outside of the radiator and the temperature difference between the inside and the outside of the radiator, the temperature of the outside of the radiator is lower than the temperature of the inside, so that the heat dissipation of the LCD is limited by the temperature of the inside radiator. In the case of a limited volume inside the projector, heat dissipation of the high-brightness projector LCD cannot be handled. Meanwhile, because of the problem of the air outlet angle of the inner wall blower, the air blown by the fan cannot be uniformly blown to the surface of the LCD screen, so that the temperature uniformity of the surface layer of the LCD is poor, the transmittance of different positions is influenced, and the uniformity of the brightness of the picture of the LCD projector is relatively poor.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide an active refrigeration type double-drive internal circulation heat dissipation LCD projector which can well solve the problems.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides an initiative refrigeration type double-drive internal circulation heat dissipation LCD projector, which comprises a shell, wherein a projection channel is arranged in the shell; the projector also comprises a reflection module arranged in the projection channel, an LCD panel module arranged at the light inlet end of the projection channel, a light source module arranged at the light inlet side of the LCD panel module, heat-insulating glass arranged between the LCD panel module and the light source module, and a lens module arranged at the light outlet end of the projection channel; a heat dissipation channel which is communicated with the projection channel in a crossing way is also arranged in the shell; one end of the heat dissipation channel is provided with a refrigeration module, and both ends of the heat dissipation channel are provided with circulating fans; the LCD panel module is positioned on the heat dissipation channel and divides the heat dissipation channel into annular channels, and a gap is arranged between the LCD panel module and the heat insulation glass.

The utility model discloses an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein two circulation fans are arranged at two ends of a heat dissipation channel, and the two circulation fans at one end of the heat dissipation channel and the two circulation fans at the other end of the heat dissipation channel are distributed along the width direction of an LCD panel module.

The utility model discloses an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein a projection channel is L-shaped, the transverse end of the projection channel is positioned above the longitudinal end, a lens module is arranged at the tail end of the transverse end, a light source module is arranged at the tail end of the longitudinal end, and heat insulation glass is positioned in the heat dissipation channel.

The utility model relates to an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein the heat dissipation channel comprises a horizontal part horizontally positioned below the transverse end and a vertical part parallel to the longitudinal end; the vertical portion is located the vertical end deviates from the one side of light source module, horizontal portion transversely runs through vertical end, insulating glass with LCD panel module all is located in the horizontal portion, the refrigeration module is located in the vertical portion.

The utility model discloses an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein four circulation fans positioned on two sides of an LCD panel module are respectively an air inlet fan group and an air outlet fan group, the air inlet fan group is positioned above a vertical part, and a refrigeration module is arranged below the air inlet fan group.

The utility model discloses an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein a first partition plate is arranged between an LCD panel module and an air outlet fan group, an inlet and an outlet of the air inlet fan group are respectively positioned at the upper side and the lower side of the first partition plate, one end of the LCD panel module, which is away from the first partition plate, is provided with a second partition plate extending into the vertical part, and the refrigeration module is positioned at one side of the second partition plate, which is away from the light source module; when assembled in place, the first divider plate, the LCD panel module and the second divider plate jointly divide the heat dissipation channel into the annular channel.

The utility model relates to an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein the light source module comprises a light source body, a light gathering cup arranged between the light source body and heat insulation glass, and a Fresnel lens plate for sealing an opening at the upper end of the light gathering cup; the projector also comprises a heat radiation module for radiating the light source body, wherein the heat radiation module is arranged on one side of the light gathering cup, which is away from the vertical part, and comprises a heat exchange seat arranged at the lower end of the light source body, a light source radiating fin arranged below the lens module, a heat conducting piece for guiding heat on the heat exchange seat into the light source radiating fin, and a light source fan for blowing air towards the light source radiating fin.

The utility model discloses an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein the refrigeration module comprises a heat absorption fin arranged in a channel at one side of the second partition plate, which is away from the light gathering cup, a refrigeration sheet arranged at one side of the heat absorption fin, which is away from the second partition plate, and a refrigeration heat dissipation fin arranged at the hot end of the refrigeration sheet for dissipating heat; the shell is provided with a fixed window matched with the refrigerating sheet, the refrigerating radiating fins are positioned outside the shell, the cold end of the refrigerating sheet is jointed with the heat absorbing fins, and the hot end of the refrigerating sheet is jointed with the refrigerating radiating fins.

The utility model discloses an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein an air outlet fan is positioned above a light source heat dissipation fin and below a lens module.

The utility model discloses an active refrigeration type double-drive internal circulation heat dissipation LCD projector, wherein gaps for air to flow through are arranged among heat insulation glass, a Fresnel lens plate and an LCD panel module.

The utility model has the beneficial effects that: compared with the low-efficiency heat dissipation mode that a fan is used for blowing high-speed air to the LCD panel module in the prior art, the utility model not only can realize the rapid cooling of higher temperature by arranging the refrigerating module in the heat dissipation channel and has stronger adaptability to the power range of the LCD panel module, but also can not limit the heat dissipation of the LCD panel module to the influence of the fixed existence of the temperature difference between the ambient temperature and the outer side of the radiator and the temperature difference between the inner side and the outer side of the radiator when the LCD panel module is subjected to heat dissipation, thereby greatly reducing the requirement on the use environment of a projector.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the present utility model will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained by those skilled in the art without inventive effort:

fig. 1 is an overall structure diagram of an active refrigeration type dual-drive internal circulation heat dissipation LCD projector according to the present utility model.

Fig. 2 is an internal structural diagram of an active refrigeration type dual-drive internal circulation heat dissipation LCD projector according to the present utility model.

Fig. 3 is an enlarged view of a partial structure at a in fig. 2.

Detailed Description

The terms "first," "second," "third," and "fourth" and the like in the description and in the claims and drawings are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

"plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Moreover, the terms "upper, lower, left, right, upper end, lower end, longitudinal" and the like that represent the orientation are all referred to with reference to the attitude position of the apparatus or device described in this scheme when in normal use.

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

As shown in fig. 1-3, the active refrigeration type dual-drive internal circulation heat dissipation LCD projector of the preferred embodiment of the present utility model comprises a housing 1, wherein a projection channel is provided in the housing 1; the projector also comprises a reflection module 2 arranged in the projection channel, an LCD panel module 3 arranged at the light inlet end of the projection channel, a light source module 4 arranged at the light inlet side of the LCD panel module 3, heat insulation glass 5 arranged between the LCD panel module 3 and the light source module 4, and a lens module 6 arranged at the light outlet end of the projection channel; wherein, the shell 1 is also internally provided with a heat dissipation channel which is communicated with the projection channel in a crossing way; one end of the heat dissipation channel is provided with a refrigeration module 7 for actively refrigerating and cooling the air in the heat dissipation channel, and both ends of the heat dissipation channel are provided with circulating fans 8; the LCD panel module 3 is positioned on the heat dissipation channel and divides the heat dissipation channel into annular channels, and a gap 9 is arranged between the LCD panel module 3 and the heat insulation glass 5; compared with the low-efficiency heat dissipation mode that a fan is used for blowing high-speed air to the LCD panel module 3 in the prior art, the utility model not only can realize the rapid cooling of the LCD panel module 3 with higher temperature and has stronger adaptability to the power range of the LCD panel module 3, but also can not limit the heat dissipation effect of the LCD panel module 3 to the influence of the fixed existence of the temperature difference between the ambient temperature and the outer side of the radiator and the temperature difference between the inner side and the outer side of the radiator when the LCD panel module 3 is subjected to heat dissipation, thereby greatly reducing the requirement on the use environment of a projector.

Preferably, two circulating fans 8 at two ends of the heat dissipation channel are respectively arranged, and the two circulating fans 8 at one end of the heat dissipation channel and the two circulating fans 8 at the other end of the heat dissipation channel are respectively distributed along the width direction of the LCD panel module 3, so that wind blown out by the fans is uniformly blown to the surface of an LCD screen, the temperature uniformity of the surface layer of the LCD is ensured, the transmittance of different positions of the LCD is balanced, and the picture brightness uniformity of the LCD projector is further ensured.

Preferably, the projection channel is L-shaped and has a transverse end 101 above the longitudinal end 102, the lens module 6 is disposed at the end of the transverse end 101, the light source module 4 is disposed at the end of the longitudinal end 102, the insulating glass 5 is disposed in the heat dissipation channel to distribute the energy consumed on the LCD screen and absorb the heat generated by the conversion, and further, the heat dissipation channel includes a horizontal portion 201 horizontally below the transverse end 101 and a vertical portion 202 side by side with the longitudinal end 102; the vertical portion 202 is located the one side that vertical portion 102 deviates from light source module 4, horizontal portion 201 transversely runs through vertical portion 102, insulating glass 5 and LCD panel module 3 all are located horizontal portion 201, refrigeration module 7 locates in vertical portion 202, four circulation fans 8 that are located LCD panel module 3 both sides are respectively air inlet fan group 81 and air outlet fan group 82, it should be noted that air inlet fan group and air outlet fan group are for LCD panel module's air inlet and air outlet function, air inlet fan group 81 is located the top of vertical portion 202, the below of air inlet fan group 81 is located to refrigeration module 7, in order to guarantee the compactedness of structure, avoid the whole volume of projecting apparatus too big.

Preferably, a first partition plate 10 is arranged between the LCD panel module 3 and the air outlet fan set 82, the inlet and the outlet of the air inlet fan set 81 are respectively positioned at the upper side and the lower side of the first partition plate 10, one end of the LCD panel module 3, which is away from the first partition plate 10, is provided with a second partition plate 11 extending into the vertical part 202, and the refrigeration module is positioned at one side of the second partition plate 11, which is away from the light source module 4; when assembled in place, the first partition plate 10, the LCD panel module 3 and the second partition plate 11 divide the heat dissipation channel into annular channels together, so as to ensure that the cooled air flows in the heat dissipation channel for a long time enough to efficiently cool all the elements on the inner wall of the heat dissipation channel.

Preferably, the light source module 4 comprises a light source body 41, a light condensing cup 42 arranged between the light source body 41 and the heat insulating glass 5, and a Fresnel lens plate 43 for sealing an upper end opening of the light condensing cup 42; the projector further comprises a heat radiation module 12 for radiating the light source body 41, the heat radiation module 12 is arranged on one side of the light gathering cup 42, which is away from the vertical part 202, the heat radiation module 12 comprises a heat exchange seat 121 arranged at the lower end of the light source body 41, a light source radiating fin 122 arranged below the lens module 6, a heat conducting piece 123 for guiding heat on the heat exchange seat 121 into the light source radiating fin 122, and a light source fan 124 for blowing air towards the light source radiating fin 122, so that the normal working temperature of the light source body 41 is ensured, wherein the space below the transverse end 101 of the projection channel can be further utilized by the position arrangement of the light source radiating fin 122, the space utilization rate of the projector is further improved, and the whole structure is more compact.

Preferably, the refrigeration module 7 comprises a heat absorption fin 71 arranged in a channel at one side of the second partition plate 11 away from the light condensation cup 42, a refrigeration sheet 72 arranged at one side of the heat absorption fin 71 away from the second partition plate 11, and a refrigeration radiating fin 73 arranged for radiating heat at the hot end of the refrigeration sheet 72; the shell 1 is provided with a fixed window matched with the refrigerating sheet 72, the refrigerating radiating fins 73 are positioned outside the shell 1, the cold ends of the refrigerating sheet are attached to the heat absorbing fins 71, the hot ends of the refrigerating sheet are attached to the refrigerating radiating fins 73, and heat generated by the hot ends of the refrigerating sheet 72 can be timely emitted to the environment through the refrigerating radiating fins 73.

Preferably, the air outlet fan is located above the light source radiating fins 122 and below the lens module 6 to flush and utilize the redundant space inside the housing 1.

Preferably, gaps 9 for air to flow through are arranged between the heat insulating glass 5 and the Fresnel lens plate 43 and between the heat insulating glass 5 and the LCD panel module 3, so that rapid heat dissipation of the heat insulating glass 5 is realized.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims

1. The LCD projector comprises a shell, wherein a projection channel is arranged in the shell; the projector also comprises a reflection module arranged in the projection channel, an LCD panel module arranged at the light inlet end of the projection channel, a light source module arranged at the light inlet side of the LCD panel module, heat-insulating glass arranged between the LCD panel module and the light source module, and a lens module arranged at the light outlet end of the projection channel; the projection device is characterized in that a heat dissipation channel which is communicated with the projection channel in a crossing way is also arranged in the shell; one end of the heat dissipation channel is provided with a refrigeration module, and both ends of the heat dissipation channel are provided with circulating fans; the LCD panel module is positioned on the heat dissipation channel and divides the heat dissipation channel into annular channels, and a gap is arranged between the LCD panel module and the heat insulation glass.

2. The active refrigeration type double-drive internal circulation heat dissipation LCD projector according to claim 1, wherein two circulation fans are arranged at two ends of the heat dissipation channel, and the two circulation fans at one end of the heat dissipation channel and the two circulation fans at the other end are arranged along the width direction of the LCD panel module.

3. The active refrigeration type dual-drive internal circulation heat dissipation LCD projector according to claim 1 or 2, wherein the projection channel is L-shaped and has a transverse end located above a longitudinal end, the lens module is disposed at the end of the transverse end, the light source module is disposed at the end of the longitudinal end, and the heat insulation glass is located in the heat dissipation channel.

4. The active-refrigeration dual-drive internal-circulation heat-dissipating LCD projector of claim 3, wherein the heat-dissipating channel includes a horizontal portion horizontally below the lateral ends, and a vertical portion side-by-side with the longitudinal ends; the vertical portion is located the vertical end deviates from the one side of light source module, horizontal portion transversely runs through vertical end, insulating glass with LCD panel module all is located in the horizontal portion, the refrigeration module is located in the vertical portion.

5. The LCD projector according to claim 4, wherein the four circulation fans on both sides of the LCD panel module are an air inlet fan group and an air outlet fan group, respectively, the air inlet fan group is located above the vertical portion, and the refrigeration module is located below the air inlet fan group.

6. The active refrigeration type double-drive internal circulation heat dissipation LCD projector according to claim 5, wherein a first separation plate is arranged between the LCD panel module and the air outlet fan group, an inlet and an outlet of the air inlet fan group are respectively positioned on the upper side and the lower side of the first separation plate, one end of the LCD panel module, which is away from the first separation plate, is provided with a second separation plate which extends into the vertical part, and the refrigeration module is positioned on one side of the second separation plate, which is away from the light source module; when assembled in place, the first divider plate, the LCD panel module and the second divider plate jointly divide the heat dissipation channel into the annular channel.

7. The active refrigeration type double-drive internal circulation heat dissipation LCD projector according to claim 6, wherein the light source module comprises a light source body, a light gathering cup arranged between the light source body and the heat insulation glass, and a Fresnel lens plate for sealing an upper end opening of the light gathering cup; the projector also comprises a heat radiation module for radiating the light source body, wherein the heat radiation module is arranged on one side of the light gathering cup, which is away from the vertical part, and comprises a heat exchange seat arranged at the lower end of the light source body, a light source radiating fin arranged below the lens module, a heat conducting piece for guiding heat on the heat exchange seat into the light source radiating fin, and a light source fan for blowing air towards the light source radiating fin.

8. The active refrigeration type double-drive internal circulation heat dissipation LCD projector according to claim 7, wherein the refrigeration module comprises a heat absorption fin arranged in a channel at one side of the second partition plate, which is away from the light focusing cup, a refrigeration sheet arranged at one side of the heat absorption fin, which is away from the second partition plate, and a refrigeration heat dissipation fin arranged for dissipating heat at a hot end of the refrigeration sheet; the shell is provided with a fixed window matched with the refrigerating sheet, the refrigerating radiating fins are positioned outside the shell, the cold end of the refrigerating sheet is jointed with the heat absorbing fins, and the hot end of the refrigerating sheet is jointed with the refrigerating radiating fins.

9. The active cooling dual drive internal circulation heat sink LCD projector of claim 7, wherein the air outlet fan is located above the light source heat sink fins and below the lens module.

10. The active cooling type double-drive internal circulation heat dissipation LCD projector according to claim 7, wherein gaps for air to flow through are arranged between the heat insulation glass and the fresnel lens plate and between the heat insulation glass and the LCD panel module.