Projector ray machine with double air outlets and projector

Abstract

According to the projector ray machine with the double air outlets and the projector, a light source plate, a first reflector, a lens module and a second reflector are arranged in a shell, a heat dissipation opening is formed in the left side of the lower end of the shell, a heat dissipation fan is located in the heat dissipation opening and located on the left side of the first reflector, and the right side of a heat dissipation fin is connected with the heat dissipation opening; the right side of the upper end of the shell is provided with a projection opening, the left end of the projection lens is connected with the projection opening, the lens module is located between the first reflector and the second reflector, the left side of the radiator is connected with the outer side wall of the shell, the connecting position of the radiator and the shell corresponds to the position of the light source plate, and the right side of the radiator is connected with the cooling fan. The front end and the rear end of the cooling fan are provided with the air outlets respectively, the cooling fan is provided with the two air outlets, air outlet is smoother, the air quantity passing through the radiator is larger, the temperature of the radiator is lowered faster, and therefore the heat dissipation performance of the projector ray machine is better.

Description

Technical Field

[0001] The present invention relates to the technical field of projection devices, specifically to a projector optical engine with dual air outlets, and also provides a projector. Background Art

[0002] With the popularization of electronic devices, projectors have gradually come into the public eye. Projectors have advantages such as a large display surface and convenience for movement, and are mostly used in meetings, 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 devices. However, current traditional projectors have the following disadvantages:

[0003] 1. Conventional cooling fans generally have a single-fan structure, but the air volume of the single fan is small, resulting in poor overall heat dissipation of the optical engine;

[0004] 2. The passing rate of the air outlet of the single-outlet cooling fan is low, and the fan may cause idling, resulting in relatively high noise;

[0005] 3. Conventional cooling fans are all independent individuals and do not surround the radiator, resulting in an unsatisfactory heat dissipation effect. Summary of the Invention

[0006] Aiming at the above problems existing in the prior art, the projector optical engine with dual air outlets provided by the present invention is used to overcome the above defects in the prior art.

[0007] To achieve the above invention purposes, the technical solutions adopted by the present invention are as follows:

[0008] A projector optical engine with dual air outlets includes a housing, a light source board, a first reflector, a lens module, a second reflector, a projection lens, a heat sink, a cooling fan, a radiator and a cooling fan.

[0009] The light source board, the first reflector, the lens module and the second reflector are arranged inside the housing. A heat dissipation port is arranged on the left side of the lower end of the housing. The cooling fan is located in the heat dissipation port and is located on the left side of the first reflector. The right side of the heat sink is connected to the heat dissipation port.

[0010] A projection port is provided on the right side of the upper end of the housing. The left end of the projection lens is connected to the projection port. The first reflector is located on the left side of the light source plate. The second reflector is located above the first reflector. The projection lens is located on the right side of the second reflector and above the light source plate. The lens module is located between the first reflector and the second reflector. The left side of the radiator is connected to the outer side wall of the housing, and the connection position between the radiator and the housing corresponds to the position of the light source plate. The right side of the radiator is connected to the cooling fan, and air outlets are respectively provided at the front and rear ends of the cooling fan.

[0011] In one embodiment, the cooling fan includes a fan base, fan blades, and a fan housing. The left end of the fan base is covered on the right end of the radiator. The fan housing is provided on the right side wall of the fan base. The fan blades are rotatably provided on the left side wall of the fan housing and located between the fan base and the fan housing. An air inlet is provided at a position on the fan base opposite to the fan blades. The air outlets are respectively provided at the front and rear ends of the fan housing.

[0012] In one embodiment, the fan housing includes an upper side wall, a lower side wall, and a right side wall. Fixing blocks are respectively provided at both ends of the upper side wall and the lower side wall of the fan housing. Through holes are provided in the fixing blocks. The middle parts of the upper side wall and the lower side wall of the fan housing respectively protrude upward to form arc-shaped protruding parts, and the two protruding parts are symmetrically arranged with respect to the center point of the right side wall of the fan housing.

[0013] In one embodiment, the fan base includes an upper side wall, a lower side wall, a front side wall, a rear side wall, and a right side wall. The air inlet is provided at the middle position of the right side wall of the fan base. The upper side wall, lower side wall, front side wall, and rear side wall of the fan base are respectively located outside the upper side wall, lower side wall, front side wall, and rear side wall of the radiator.

[0014] In one embodiment, the width of the upper side wall of the fan base is smaller than the width of the upper side wall of the radiator. The width of the lower side wall of the fan base is equal to the width of the lower side wall of the radiator. Notches are respectively provided on the front side wall and the rear side wall of the fan base.

[0015] In one embodiment, connecting plates are respectively provided on the upper side wall, front side wall, and rear side wall of the fan base, and through holes are provided in the connecting plates.

[0016] The present invention also provides a projector, including a housing, characterized in that it further includes the projector optical machine with double air outlets as described above, and the projector optical machine with double air outlets is arranged inside the housing.

[0017] Compared with the prior art, the projector optical machine with dual air outlets provided by the present invention has the following advantages:

[0018] 1. The cooling fan in the present invention has dual air outlets. Under the same air pressure, the air volume is increased by 50%, the air outlet is smoother, more air passes through the radiator, and the temperature of the radiator drops faster, so the heat dissipation performance of the projector optical machine is better.

[0019] 2. For the cooling fan with dual air outlets, the air outlet is smoother, and under the same air pressure, the noise is reduced by more than 1 dB.

[0020] 3. The left end cover of the fan base of the cooling fan is installed on the right end of the radiator, realizing a semi-surrounding of the radiator, so that the radiator can be more effectively cooled in a more concentrated manner, and the heat dissipation efficiency of the radiator is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front view structural schematic diagram of the present invention;

[0022] Figure 2 is the three-dimensional structural schematic diagram of the fan base in the present invention;

[0023] Figure 3 is the three-dimensional structural schematic diagram of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "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 invention 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 therefore should not be construed as a limitation to the present invention.

[0025] 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 indicating 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 invention, "a plurality" means two or more unless otherwise specifically defined.

[0026] In the present invention, unless otherwise clearly specified or limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral body; 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 communication inside 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 invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise clearly specified or limited, 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" 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", "beneath" and "under" 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.

[0028] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means 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 invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0029] As Figures 1-3 shown, for the convenience of description, the orientation references of "up", "down", "left", "right", "front", and "back" in the present invention are based on the orientation shown in the appendix Figure 1 shown;

[0030] A projector optical machine with a dual air outlet includes a housing 1, a light source board, a first reflector, a lens module, a second reflector, a projection lens 2, a heat sink 3, a cooling fan, a radiator 4, and a cooling fan 5.

[0031] The light source board, the first reflector, the lens module, and the second reflector are arranged inside the housing 1. A heat dissipation port is provided on the left side of the lower end of the housing 1. The cooling fan is located in the heat dissipation port and is on the left side of the first reflector. The right side of the heat sink 3 is connected to the heat dissipation port.

[0032] A projection port is provided on the right side of the upper end of the housing 1. The left end of the projection lens 2 is connected to the projection port. The first reflector is located on the left side of the light source board. The second reflector is located above the first reflector. The projection lens 2 is located on the right side of the second reflector and above the light source board. The lens module is located between the first reflector and the second reflector. The left side of the radiator 4 is connected to the outer side wall of the housing 1, and the connection position between the radiator 4 and the housing 1 corresponds to the position of the light source board. The right side of the radiator 4 is connected to the cooling fan 5, and air outlets are respectively provided at the front and rear ends of the cooling fan 5. In the projector optical machine with double air outlets provided by the present invention, the light emitted by the light source board is reflected by the first reflector, passes through the lens module to reach the second reflector, and is then reflected by the second reflector to the projection lens. Compared with the existing projectors, the volume is smaller, the space inside the projector can be utilized more fully, and the packaging, transportation and storage costs are reduced. On the other hand, the cooling fan in the present invention has double air outlets. Under the same air pressure, the air volume is increased by 50%, the air outlet is smoother, more air passes through the radiator, and the temperature of the radiator drops faster, so that the heat dissipation performance of the projector optical machine is better.

[0033] Specifically, the cooling fan 5 includes a fan base 51, a fan blade 52 and a fan housing 53. The left end of the fan base 51 is covered on the right end of the radiator 4. The fan housing 53 is arranged on the right side wall of the fan base 51. The fan blade 52 is rotatably arranged on the left side wall of the fan housing 53 and is located between the fan base 51 and the fan housing 53. An air inlet 511 is provided at the position of the fan base 51 opposite to the fan blade 52. Air outlets 531 are respectively provided at the front and rear ends of the fan housing 53.

[0034] Further, the fan housing 53 includes an upper side wall, a lower side wall and a right side wall. Fixing blocks 532 are respectively provided at both ends of the upper side wall and the lower side wall of the fan housing 53. Through holes are provided on the fixing blocks 532. By using the fixing blocks and the through holes above them, and cooperating with corresponding screws, the connection between the fan housing 53 and the fan base 51 can be realized. The middle parts of the upper side wall and the lower side wall of the fan housing 53 respectively protrude upward to form arc-shaped protrusions 533, and the two protrusions 533 are symmetrically arranged with respect to the center point of the right side wall of the fan housing 53 to adapt to the rotation of the fan blade 52.

[0035] In this embodiment, the fan base 51 includes an upper sidewall, a lower sidewall, a front sidewall, a rear sidewall, and a right sidewall. An air inlet 511 is provided at the middle position of the right sidewall of the fan base 51. The upper sidewall, lower sidewall, front sidewall, and rear sidewall of the fan base 51 are correspondingly located outside the upper sidewall, lower sidewall, front sidewall, and rear sidewall of the radiator 4 to achieve the connection relationship that the left end of the fan base 51 is sleeved on the right end of the radiator 4, thereby realizing a semi-surrounding of the radiator 4. Therefore, the radiator 4 can be more effectively cooled in a more concentrated manner, and the heat dissipation efficiency of the radiator 4 is significantly improved.

[0036] In this embodiment, the width of the upper sidewall of the fan base 51 is smaller than the width of the upper sidewall of the radiator 4, the width of the lower sidewall of the fan base 51 is equal to the width of the lower sidewall of the radiator 4, and notches are respectively provided on the front sidewall and the rear sidewall of the fan base 51. Such a structural design can better enable the connection between the fan base 51 and the radiator 4. On the premise of not affecting the mating installation between the two, the right end of the radiator 4 can be wrapped as much as possible, thereby improving the heat dissipation efficiency of the radiator 4.

[0037] In this embodiment, connection plates are respectively provided on the upper sidewall, front sidewall, and rear sidewall of the fan base 51, and through holes are provided on the connection plates. By using the connection plates and the through holes above them, and cooperating with corresponding screws, the connection between the fan base 51 and the housing 1 can be realized.

[0038] The present invention also provides a projector, which includes a housing and also includes the projector optical machine with double air outlets as described above. The projector optical machine with double air outlets is arranged inside the housing to form the overall structure of the projector.

[0039] The performance comparison data of the conventional single-air outlet cooling fan and the double-air outlet cooling fan provided by the present invention are shown in the following table:

[0040]

[0041] It can be seen from the numerical comparison in the above table that: when the air pressure of the conventional single-air outlet cooling fan and the double-air outlet cooling fan provided by the present invention is not much different, the double-air outlet cooling fan provided by the present invention has a larger air volume and lower noise. Therefore, it can better improve the overall heat dissipation efficiency of the projector and is beneficial to the long-term stable operation of the projector.

[0042] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0043] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent of the present invention shall be subject to the appended claims.

Claims

1. A projector optical engine with dual air outlets, characterized in that, It includes a housing, a light source board, a first reflector, a lens module, a second reflector, a projection lens, a heat sink, a cooling fan, a radiator and a cooling fan. The light source board, the first reflector, the lens module and the second reflector are arranged inside the housing. A heat dissipation opening is provided on the left side of the lower end of the housing. The cooling fan is located inside the heat dissipation opening and on the left side of the first reflector. The right side of the heat sink is connected to the heat dissipation opening. A projection opening is provided on the right side of the upper end of the housing. The left end of the projection lens is connected to the projection opening. The first reflector is located on the left side of the light source board. The second reflector is located above the first reflector. The projection lens is located on the right side of the second reflector and above the light source board. The lens module is located between the first reflector and the second reflector. The left side of the radiator is connected to the outer side wall of the housing, and the connection position between the radiator and the housing corresponds to the position of the light source board. The right side of the radiator is connected to the cooling fan, and air outlets are respectively provided at the front and rear ends of the cooling fan.

2. The projector optical machine with double air outlets according to claim 1, wherein, The cooling fan includes a fan base, fan blades and a fan housing. The left end of the fan base is sleeved on the right end of the radiator. The fan housing is arranged on the right side wall of the fan base. The fan blades are rotatably arranged on the left side wall of the fan housing and between the fan base and the fan housing. An air inlet is provided at the position on the fan base opposite to the fan blades. The air outlets are respectively provided at the front and rear ends of the fan housing.

3. The projector optical engine with dual air outlets according to claim 2, characterized in that, The fan housing includes an upper side wall, a lower side wall and a right side wall. Fixing blocks are respectively provided at both ends of the upper side wall and the lower side wall of the fan housing. Through holes are provided on the fixing blocks. The middle parts of the upper side wall and the lower side wall of the fan housing respectively protrude upward to form arc-shaped protrusions, and the two protrusions are symmetrically arranged with respect to the center point of the right side wall of the fan housing.

4. The projector optical machine with double air outlets according to claim 2, characterized in that, The fan base includes an upper side wall, a lower side wall, a front side wall, a rear side wall and a right side wall. The air inlet is provided at the middle position of the right side wall of the fan base. The upper side wall, the lower side wall, the front side wall and the rear side wall of the fan base are respectively located outside the upper side wall, the lower side wall, the front side wall and the rear side wall of the radiator.

5. The projector optical machine with double air outlets according to claim 4, characterized in that The width of the upper side wall of the fan base is smaller than the width of the upper side wall of the radiator. The width of the lower side wall of the fan base is equal to the width of the lower side wall of the radiator. Notches are respectively provided on the front side wall and the rear side wall of the fan base.

6. The projector optical engine with dual air outlets according to claim 5, wherein Connection plates are respectively provided on the upper side wall, the front side wall and the rear side wall of the fan base, and through holes are provided on the connection plates.

7. A projector, comprising a housing, characterized in that, It further includes a projector optical machine with double air outlets as described in any one of claims 1-6, and the projector optical machine with double air outlets is arranged inside the housing.

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