Projector ray machine with double heat dissipation air channels and projector

Abstract

The utility model provides a projector ray machine with double heat dissipation air ducts and a projector, the ray machine comprises a housing, the housing is internally provided with a reflector, a lens module and an image display module, the right end of the housing is provided with a projection lens, and the lens module and the image display module are provided with through holes penetrating through the left and right ends of the lens module and the image display module. A heat dissipation fan is embedded in the left side wall of the second cavity, a light-emitting plate is embedded in the bottom wall of the second cavity, a first heat dissipation plate is embedded in the right side wall of the second cavity, a second heat dissipation plate covers the left side of the heat dissipation fan, a light condensation cylinder is arranged between the light-emitting plate and the image display module, and air inlets are formed in the left side wall and the right side wall of the heat dissipation fan respectively; an air outlet is formed in the upper end of the cooling fan, an air guide cover is arranged at the air outlet, the lower end of the air guide cover is communicated with the air outlet, the right end of the air guide cover is communicated with the left end of the image display module, and the projector optical machine and the projector have the advantages of being compact in size, convenient to disassemble and assemble, good in overall cooling effect during working and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of projectors, in particular to a projector optical machine with a double heat dissipation air duct, and also provides a projector. Background Art

[0002] With the popularization of electronic devices, projectors have gradually come into the public view. Projectors have advantages such as a large display surface and convenient movement, and are mostly used in conferences, teaching, exhibitions and other occasions. At the same time, they are gradually entering families. More and more people plan to use projectors to replace TVs as home audio-visual equipment. However, the current traditional projectors have the following disadvantages:

[0003] 1. The layout of internal components is relatively scattered, and the space utilization rate is not high;

[0004] 2. On the premise that the overall volume of the projector and the internal space are limited, it is easy to have the problem of poor heat dissipation effect of internal components. Content of the Utility Model

[0005] A projector provided by the utility model is used to overcome the above defects in the prior art.

[0006] To achieve the above invention purpose, the technical solution adopted by the utility model is as follows:

[0007] A projector optical machine with a double heat dissipation air duct includes a housing. Inside the housing, a first cavity, a lens module installation cavity, an image display module installation cavity and a second cavity are sequentially arranged from top to bottom.

[0008] A reflector is obliquely arranged at the left end of the first cavity, and a lens mounting port is arranged at the right end. A projection lens is connected to the lens mounting port.

[0009] A lens module is arranged inside the lens module installation cavity.

[0010] An image display module is arranged inside the image display module installation cavity.

[0011] Through holes penetrating the left and right ends thereof are arranged on the lens module and the image display module.

[0012] A cooling fan is embedded on the left side wall of the second cavity, a light-emitting plate is embedded on the bottom wall, and a first heat dissipation plate is embedded on the right side wall. A second heat dissipation plate is installed on the left side of the cooling fan. A condenser barrel is arranged between the light-emitting plate and the image display module.

[0013] The left and right side walls of the cooling fan are respectively provided with air inlets, the upper end of the cooling fan is provided with an air outlet, a wind guide cover is arranged at the air outlet, the lower end of the wind guide cover is communicated with the air outlet, and the right end of the wind guide cover is communicated with the left end of the image display module. The right ends of the image display module and the lens module are arranged opposite to the inner wall of the upper end of the first heat dissipation plate and there is a gap therebetween. The left end of the lens module is arranged opposite to the inner wall of the upper end of the second heat dissipation plate and there is a gap therebetween.

[0014] In one embodiment, a seal is provided between the upper side wall of the lens module and the housing.

[0015] In one embodiment, several longitudinal heat dissipation fins are arranged in parallel in the front-rear direction on the left side wall of the first heat dissipation plate located below the lens module.

[0016] In one embodiment, the heat dissipation fins located below the image display module respectively protrude inward, and the upper left corner and the lower left corner of the heat dissipation fins are respectively rounded.

[0017] In one embodiment, the part of the first heat dissipation plate opposite to the right end of the lens module protrudes to the right to form a groove.

[0018] In one embodiment, several longitudinal heat dissipation fins are arranged in parallel in the front-rear direction on the right side wall of the first heat dissipation plate.

[0019] In one embodiment, the part of the second heat dissipation plate opposite to the cooling fan protrudes to the left to form a groove to accommodate the cooling fan.

[0020] In one embodiment, several longitudinal heat dissipation fins are arranged in parallel in the front-rear direction on the right side wall of the second heat dissipation plate.

[0021] In one embodiment, at least two lenses are respectively arranged in parallel in the up-down direction inside the lens module and the image display module.

[0022] The present utility model further provides a projector, including a housing, and further including a projector optical machine with a double heat dissipation air duct as described in any one of the above. The projector optical machine with a double heat dissipation air duct is arranged inside the housing.

[0023] Compared with the prior art, a projector optical engine and a projector with a double heat dissipation air duct provided by the utility model include a housing. Inside the housing, a first cavity, a lens module installation cavity, an image display module installation cavity, and a second cavity are sequentially arranged from top to bottom. A reflecting mirror is obliquely arranged at the left end of the first cavity, and a lens mounting port is arranged at the right end. A projection lens is connected to the lens mounting port. A lens module is arranged inside the lens module installation cavity, and an image display module is arranged inside the image display module installation cavity. Through holes penetrating the left and right ends are arranged on the lens module and the image display module. A heat dissipation fan is embedded on the left side wall of the second cavity, a light emitting plate is embedded on the bottom wall, and a first heat dissipation plate is embedded on the right side wall. A second heat dissipation plate is installed on the left side of the heat dissipation fan. A condenser barrel is arranged between the light emitting plate and the image display module. Air inlets are respectively arranged on the left and right side walls of the heat dissipation fan, and an air outlet is arranged at the upper end of the heat dissipation fan. A wind guide cover is arranged at the air outlet. The lower end of the wind guide cover is communicated with the air outlet, and the right end is communicated with the left end of the image display module. The right ends of the image display module and the lens module are arranged opposite to the inner wall of the upper end of the first heat dissipation plate and there is a gap between them. The left end of the lens module is arranged opposite to the inner wall of the upper end of the second heat dissipation plate and there is a gap between them.

[0024] In this way, the air coming out of the heat dissipation fan will be divided into two paths after passing through the image display module. One path is guided by the first heat dissipation plate and flows downward through the second cavity and the condenser barrel, and then returns to the heat dissipation fan through the air inlet on the right side of the heat dissipation fan. The other path is guided by the first heat dissipation plate and flows upward through the through hole at the right end of the lens module into the lens module, and then flows from the through hole at the left end of the lens module to the second heat dissipation plate, and then is guided by the second heat dissipation plate and flows downward to return to the heat dissipation fan through the air inlet on the left side of the heat dissipation fan. Therefore, by using one heat dissipation fan, two air paths for heat dissipation can be realized inside the projector optical engine, and components such as the lens module, the image display module, and the light emitting plate can be efficiently cooled.

[0025] Secondly, by adopting the above technical solution, the layout of each component inside the projector optical engine is more regular, which not only helps to improve the heat dissipation effect of each component, but also improves the utilization rate of the internal space of the projector optical engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a partial three-dimensional structure schematic diagram of the optical engine provided by the utility model;

[0027] Figure 2 It is a first internal partial three-dimensional structure schematic diagram of the optical engine provided by the utility model;

[0028] Figure 3 It is a second internal partial three-dimensional structure schematic diagram of the optical engine provided by the utility model;

[0029] Figure 4 Schematic three-dimensional structure diagram of the first heat dissipation plate of the optical engine provided by the present utility model;

[0030] Figure 5 Schematic three-dimensional structure diagram of the second heat dissipation plate of the optical engine provided by the present utility model. Detailed implementation manners

[0031] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0033] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected with", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0036] As Figures 1-5 shown, for the convenience of description, the orientation references of "upper", "lower", "left", "right", "front", and "rear" in the present utility model are based on the orientation shown in the attached Figure 1 figure;

[0037] A projector optical engine with a double heat dissipation air duct includes a housing 1. Inside the housing 1, a first cavity, a lens module installation cavity, an image display module installation cavity, and a second cavity are sequentially arranged from top to bottom.

[0038] A reflecting mirror 2 is inclinedly arranged at the left end of the first cavity, and a lens mounting port is arranged at the right end. A projection lens 3 is connected to the lens mounting port.

[0039] A lens module 4 is arranged inside the lens module installation cavity.

[0040] An image display module 5 is arranged inside the image display module installation cavity.

[0041] Through holes penetrating the left and right ends thereof are arranged on the lens module 4 and the image display module 5.

[0042] A heat dissipation fan 6 is embedded on the left side wall of the second cavity, a light emitting plate 7 is embedded on the bottom wall, and a first heat dissipation plate 8 is embedded on the right side wall. A second heat dissipation plate 9 is installed on the left side of the heat dissipation fan 6. A condenser barrel 10 is arranged between the light emitting plate 7 and the image display module 5.

[0043] Air inlets are respectively arranged on the left and right side walls of the heat dissipation fan 6, and an air outlet is arranged at the upper end of the heat dissipation fan 6. A wind guide cover 11 is arranged at the air outlet. The lower end of the wind guide cover 11 is communicated with the air outlet of the heat dissipation fan 6, and the right end is communicated with the left end of the image display module 5. The right ends of the image display module 5 and the lens module 4 are arranged opposite to the inner wall of the upper end of the first heat dissipation plate 8 and there is a gap therebetween. The left end of the lens module 4 is arranged opposite to the inner wall of the upper end of the second heat dissipation plate 9 and there is a gap therebetween.

[0044] In this way, the air coming out of the cooling fan 6 will be divided into two paths after passing through the inside of the image display module 5. One path is guided by the first heat dissipation plate 8 and flows downward through the second cavity and the condenser barrel 10, and then returns to the cooling fan 6 through the air inlet on the right side of the cooling fan 6. The other path is guided by the first heat dissipation plate 8 and goes upward through the through hole at the right end of the lens module 4 into the lens module 4, and then flows from the through hole at the left end of the lens module 4 to the second heat dissipation plate 9, and then is guided by the second heat dissipation plate 9 and returns to the cooling fan from the air inlet on the left side of the cooling fan 6. Therefore, by using a single cooling fan 6, two air paths for heat dissipation can be realized inside the projector optical engine, and components such as the lens module 4, the image display module 5, and the light emitting plate 7 can be efficiently cooled.

[0045] In this embodiment, in order to prevent the air from the cooling fan 6 from entering the first cavity, the upper side wall of the lens module 4 is designed to be sealed with the housing 1.

[0046] In this embodiment, several longitudinal heat dissipation fins 12 are arranged in parallel along the front-rear direction on the left side wall of the first heat dissipation plate 8 located below the lens module 4. By arranging the heat dissipation fins 12, a good guiding effect on the air flowing downward through the first heat dissipation plate 8 is achieved, thereby improving the overall heat dissipation effect.

[0047] Furthermore, the heat dissipation fins 12 located below the image display module 5 protrude inward respectively, and the upper left corner and the lower left corner of the heat dissipation fins 12 are respectively rounded. This not only further improves the guiding effect of the heat dissipation fins 12 on the air, avoids the phenomenon of air disorder in the second cavity, but also avoids accidental injury caused by sharp corners at the corners of the heat dissipation fins 12.

[0048] In this embodiment, in order to better guide the air entering the lens module 4, the part of the first heat dissipation plate 8 opposite to the right end of the lens module 4 is designed to protrude to the right to form a groove. In this way, the air from the cooling fan 6 will generate a backflow and a turn upward under the action of the groove on the first heat dissipation plate 8, so that the air from the cooling fan 6 can enter the inside of the lens module 4 to the greatest extent, thereby improving the heat dissipation effect of the lens module 4.

[0049] In this embodiment, several longitudinal heat dissipation fins 12 are arranged in parallel along the front-rear direction on the right side wall of the first heat dissipation plate 8, thereby increasing the contact area between the first heat dissipation plate 8 and the outside air of the projector optical engine, and correspondingly improving the heat dissipation efficiency of the first heat dissipation plate 8.

[0050] In this embodiment, the part of the second heat dissipation plate 9 opposite to the cooling fan 6 protrudes to the left to form a groove to accommodate the cooling fan 6.

[0051] In this embodiment, several longitudinal heat dissipation fins 12 are arranged in parallel in the front-back direction on the right side wall of the second heat dissipation plate 9, correspondingly realizing the function of guiding the air flowing through the right side wall of the second heat dissipation plate 9, thereby improving the overall heat dissipation effect.

[0052] In this embodiment, at least two lenses are respectively arranged in parallel up and down inside the lens module 4 and the image display module 5. Therefore, the air flowing through the inside of the lens module 4 and the image display module 5 will flow through the gaps between the lenses inside them, and at the same time, it will also take away the heat on the lens surface, thereby achieving the purpose of dissipating heat from the lenses inside the lens module 4 and the image display module 5.

[0053] The present utility model also provides a projector, which includes a housing, and also includes a projector optical machine with a double heat dissipation air duct as described above. A projector optical machine with a double heat dissipation air duct is arranged inside the housing to form the whole projector. The projector provided by the present utility model has many advantages such as small volume, convenient to carry, good overall heat dissipation effect during operation, and the whole machine can work stably for a long time. It is very suitable for the current market demand. Therefore, it is beneficial to the market promotion of the product and can achieve good economic benefits.

[0054] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0055] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A projector optical machine with dual heat dissipation ducts, comprising a housing, characterized in that: The interior of the housing is provided with a first cavity, a lens module installation cavity, an image display module installation cavity and a second cavity in sequence from top to bottom. A reflector is tiltedly disposed at the left end of the first cavity, and a lens mounting port is disposed at the right end, and a projection lens is connected to the lens mounting port. The lens module installation cavity is provided with a lens module inside. An image display module is arranged inside the image display module installation cavity. The lens module and the image display module are provided with through holes penetrating the left and right ends thereof. A cooling fan is embedded on the left wall of the second cavity, a light-emitting panel is embedded on the bottom wall, and a first heat-dissipating panel is embedded on the right wall. A second heat-dissipating panel is installed on the left cover of the cooling fan. A focusing tube is arranged between the light-emitting panel and the image display module. Air inlets are respectively arranged on the left and right side walls of the cooling fan, an air outlet is arranged on the upper end of the cooling fan, an air guide cover is arranged at the air outlet, the lower end of the air guide cover is connected with the air outlet, and the right end of the air guide cover is connected with the left end of the image display module, the right ends of the image display module and the lens module are arranged opposite to the inner wall of the upper end of the first heat dissipation plate and a gap is arranged between them, and the left end of the lens module is arranged opposite to the inner wall of the upper end of the second heat dissipation plate and a gap is arranged between them.

2. The projector optical machine with dual heat dissipation ducts according to claim 1, characterized in that: The upper side wall of the lens module is sealed with the shell.

3. The projector optical machine with dual heat dissipation ducts according to claim 1, characterized in that: A plurality of longitudinal heat dissipation fins are arranged in parallel along the front-to-back direction on the left side wall of the first heat dissipation plate located below the lens module.

4. The projector optical machine with dual heat dissipation ducts according to claim 3, characterized in that: The heat dissipation fins located below the image display module protrude inwards respectively, and the upper left corner and the lower left corner of the heat dissipation fin are rounded respectively.

5. The projector optical machine with double heat dissipation ducts according to claim 4, characterized in that: The portion of the first heat dissipation plate opposite to the right end of the lens module protrudes to the right to form a groove.

6. The projector optical machine with dual heat dissipation ducts according to claim 5, characterized in that: A plurality of longitudinal heat dissipation fins are arranged on the right side wall of the first heat dissipation plate in parallel along the front-to-back direction.

7. The projector optical machine with dual heat dissipation ducts according to claim 1, characterized in that: The portion of the second heat dissipation plate opposite to the heat dissipation fan protrudes to the left to form a groove to accommodate the heat dissipation fan.

8. The projector optical machine with dual heat dissipation ducts according to claim 7, characterized in that: A plurality of longitudinal heat dissipation fins are arranged on the right side wall of the second heat dissipation plate in parallel along the front-to-back direction.

9. The projector optical machine with dual heat dissipation ducts according to claim 1, characterized in that: At least two lenses are arranged in parallel up and down inside the lens module and the image display module.

10. A projector, comprising a housing, characterized in that: It also includes a projector optical engine with dual heat dissipation air ducts as described in any one of claims 1 to 9, wherein the projector optical engine with dual heat dissipation air ducts is arranged inside the housing.

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