CN219695608U - Ray apparatus and projecting apparatus with two fan structure radiators - Google Patents

Abstract

The utility model discloses an optical machine with a radiator with a double-fan structure and a projector, wherein the optical machine comprises a shell, a lens is arranged on the front side wall of the shell, an optical lens group is arranged on the inner wall of the shell, a heat radiation fan is arranged below the optical lens group, a light source component is arranged on the side wall of the shell positioned on the right side of the optical lens group, a radiator is arranged on the outer side wall of the bottom surface of the shell, the radiator comprises a radiating substrate, a radiator bellows, a plurality of heat conduction pipes and a radiating fin component, two radiator fans are arranged in the radiator bellows side by side, the radiating substrate is arranged on the outer side wall of the light source component, the radiating fin component is arranged on the radiator bellows at the air outlet of the radiator fan, one end of the heat conduction pipe is inserted into the radiating fin component, the other end of the heat conduction pipe is connected with the radiating substrate, and the double-fan structure can be used for effectively reducing the outline dimension of the radiator and the projector on the premise of ensuring the indexes such as air quantity and wind pressure, and the like, and the radiator is convenient for a user to carry.

Description

Ray apparatus and projecting apparatus with two fan structure radiators

Technical Field

The utility model relates to the technical field of projectors, in particular to a bare engine with a radiator with a double-fan structure, and also relates to a projector.

Background

With the continuous development of technology, projection technology is continuously advanced, projectors are widely applied to meeting, teaching, entertainment and other places, and with the wide application and use frequency improvement of projectors, higher requirements are also put on heat dissipation of the projectors, but at present, traditional projectors have the following disadvantages:

1. the single-fan structure ensures that the heat dissipation effect is better if the indexes such as air quantity, air pressure and the like are excellent, namely the size is large, but the large-size fans usually cause the outline size of the optical machine of the projector to be obviously increased so as to influence the size of the projector, and the projector is inconvenient for a user to carry;

2. the light source component, the optical component and the like arranged in the projector at present share one set of heat dissipation system, so that internal air flow is disturbed, the heat dissipation effect is extremely poor, good heat dissipation cannot be achieved after long-time use, and the service life is reduced;

3. when the heat dissipation fan operates, the air flow circulation is not smooth, so that the heat dissipation effect of the lens is poor.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a radiator with a double-fan structure and a projector aiming at the defects in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the light machine with the radiator with the double-fan structure comprises a shell, wherein a lens is arranged on the front side wall of the shell, an optical lens group is arranged on the inner wall of the shell, a light source component is arranged on the side wall of the shell positioned on the right side of the optical lens group, light rays emitted from the light source component are projected to the lens through the optical lens group for projection,

be provided with the radiator on the lateral wall of casing, the radiator includes radiating basal plate, radiator bellows, a plurality of heat pipe and fin subassembly, be provided with two radiator fans side by side in the radiator bellows, radiating basal plate sets up on the lateral wall of light source subassembly, the fin subassembly sets up on the radiator bellows, just the air outlet orientation of radiator fan the fin subassembly, a plurality of the one end of heat pipe alternates in the fin subassembly, the other end with radiating basal plate connects.

In one embodiment, the upper and lower ends of the shell are respectively provided with a through hole, the upper end of the shell is provided with a first heat dissipation plate, the lower end of the shell is provided with a second heat dissipation plate,

the optical lens group is arranged between the first radiating plate and the second radiating plate, the radiating fan is arranged on the inner wall of the second radiating plate, the air outlet of the radiating fan faces the optical lens group, and the second radiating plate, the radiator bellows and the radiating fin component are sequentially arranged side by side from left to right.

In one embodiment, the left end and the right end of the radiator bellows are provided with openings, the upper surfaces of the radiator bellows are provided with air inlet holes, the upper ends of the radiator bellows are provided with a first air inlet, the lower ends of the radiator bellows are provided with a second air inlet, the right ends of the radiator bellows are provided with air outlets, the radiator bellows is internally provided with a mounting plate, the middle of the mounting plate is provided with air outlet holes, the radiator bellows are fixedly mounted on the inner wall of the upper end of the radiator bellows and are in butt joint with the mounting plate, the first air inlet of the radiator fan is communicated with the air inlet holes of the radiator bellows, the second air inlet is communicated with the opening of the left end of the radiator bellows, and the air outlet is communicated with the air outlet holes of the mounting plate.

In one embodiment, the radiating fin assembly comprises a plurality of radiating fins arranged in parallel at intervals, a groove is arranged at the middle part of the top end of the radiating fin assembly, slotted holes are respectively arranged at the upper edge and the lower edge of the radiating fins, through holes are arranged at the middle part of the radiating fins,

the heat dissipation substrate is positioned in the groove on the heat dissipation sheet component, a plurality of embedded grooves are formed in one side of the heat dissipation substrate, one ends of the heat conduction pipes are respectively inserted into the through holes or the slotted holes on the heat dissipation plate, and the other ends of the heat conduction pipes are correspondingly embedded in the embedded grooves on the heat dissipation substrate.

In one embodiment, the left upper corner of the front and rear side walls of the radiator bellows is of an arc structure, the left edge of the upper side wall of the radiator bellows is provided with a plurality of clamping grooves, the right end of the second radiating plate is provided with a fixing plate, the fixing plate is provided with a plurality of threaded holes in one-to-one correspondence with the plurality of clamping grooves,

the right edge of the upper side wall of the radiator bellows is positioned on the left side of the right edge of the lower side wall of the radiator bellows, and the left end of the radiating fin assembly is placed on the lower side wall of the opening at the right end of the radiator bellows and is abutted with the upper side wall of the radiator bellows.

In one embodiment, the light source assembly comprises a substrate and an electronic element, the electronic element is fixedly arranged on the substrate, a plurality of threaded holes are formed in the substrate, and a plurality of threaded holes are formed in the heat dissipation substrate in one-to-one correspondence with the substrate.

In one embodiment, the optical lens group includes a reflector, a first lens, a liquid crystal screen, a reflective polarizer, a second lens and a lens support, wherein the first lens and the liquid crystal screen are arranged at left and right ends of the lens support from left to right at intervals, and the reflector, the lens support, the reflective polarizer and the second lens are arranged in the shell from left to right at intervals in sequence.

In one embodiment, the upper and lower ends of the right side of the reflector are respectively provided with a sealing plate, the edges of the sealing plates are respectively and hermetically connected with the inner wall of the shell, the upper and lower ends of the lens support and the right side surface of the reflector, the upper and lower side walls of the shell positioned on the left side of the reflector are respectively provided with a vent hole,

the inner walls of the first radiating plate and the second radiating plate are transversely provided with a plurality of radiating fins, the upper ends of the reflective polaroid and the second lens are respectively abutted with the radiating fins on the first radiating plate, the openings at the upper end and the lower end of the lens support are respectively arranged, the openings at the lower end of the lens support are internally and communicatively provided with air inlet assemblies, the openings at the upper end of the lens support are internally and communicatively provided with air outlet assemblies, and the air outlet assemblies are abutted with the radiating fins on the second radiating plate.

In one embodiment, the air inlet assembly comprises an air deflector, the air deflector is inserted into an opening at the lower end of the lens support, the lower end of the air deflector is of a bending structure, a bending concave surface at the lower end of the air deflector is arranged towards an air outlet of the heat dissipation fan, a plurality of air deflectors are fixedly arranged on the air deflector, and the left ends of the air deflectors are fixedly connected with the lens support respectively;

the air-out subassembly includes a plurality of air-out storehouse, and a plurality of air-out storehouse sets up with the interval in the opening of lens support upper end, the air intake has been seted up to the bottom in air-out storehouse, just the air intake in air-out storehouse with the inside intercommunication of lens support, be provided with the air outlet on the left side wall in air-out storehouse, the upper right corner in air-out storehouse is the fillet setting.

The utility model also provides a projector, which comprises a shell, and is characterized by further comprising the bare engine with the radiator with the double-fan structure, wherein the bare engine with the radiator with the double-fan structure is arranged in the shell

The beneficial effects of the utility model are as follows:

1. according to the radiator with the double-fan structure, the two fans with smaller size are selected in the radiator, the two fans are arranged in parallel to radiate heat of the light source assembly arranged in the optical machine, the external dimension of the radiator can be effectively reduced under the condition that the excellent indexes such as air quantity and air pressure are ensured, and the optical machine structure of the whole projector is simpler and more compact, so that the volume of the projector is more compact and smaller, the space in the projector can be more fully utilized, and the projector is convenient for a user to carry;

2. the utility model provides a projector, wherein a radiating fan with an upward air outlet is arranged in an optical machine, and the whole air flow penetrates through an optical lens group from bottom to top by adopting a radiating mode from bottom to top so as to achieve the aim of fully radiating; a radiator for radiating the light source component is arranged outside the optical machine of the projector, and heat generated by the working of the light source component is transferred to the heat conduction pipe and the radiating fin through the radiating substrate for radiating; the two independent heat dissipation systems arranged inside and outside the projector optical machine enable air flow to be smoother and not disturbed during heat dissipation, and heat accumulation generated by each component during use is reduced.

Drawings

FIG. 1 is a schematic diagram of a bare engine with a dual fan structure heat sink;

FIG. 2 is a schematic diagram of a radiator with a dual fan structure;

FIG. 3 is a schematic side view of a radiator bellows having a dual fan structure radiator;

FIG. 4 is a schematic view of a first part of a bare engine with a dual fan structure heat sink;

FIG. 5 is a schematic view of a second part of a bare engine with a dual fan structure heat sink;

FIG. 6 is a schematic view of a third part of a bare engine with a dual fan structure heat sink;

fig. 7 is a schematic view of the structure of the lens holder.

Detailed Description

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," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

As described in fig. 1-7:

the light machine with the radiator with the double-fan structure comprises a shell 1, a lens 2 is arranged on the front side wall of the shell 1, an optical lens group 3 is arranged on the inner wall of the shell 1, a light source component 4 is arranged on the side wall of the shell 1 positioned on the right side of the optical lens group 3, light rays emitted from the light source component 4 are projected to the lens 2 through the optical lens group 3 for projection,

the radiator 5 is arranged on the outer side wall of the shell 1, the radiator 5 comprises a radiating substrate 51, a radiator bellows 52, a plurality of heat conduction pipes 53 and a radiating fin assembly 54, two radiator fans 55 are arranged in the radiator bellows 52 side by side, the radiating substrate 51 is arranged on the outer side wall of the light source assembly 4, the radiating fin assembly 54 is arranged on the radiator bellows 52, an air outlet of the radiator fans 55 faces the radiating fin assembly 54, one ends of the plurality of heat conduction pipes 53 are inserted into the radiating fin assembly 54, and the other ends of the plurality of heat conduction pipes 53 are connected with the radiating substrate 51;

through the structure, the wind from the air outlets of the two radiator fans 55 in the radiator 5 with the double-fan structure blows to the radiating fin assembly 54, so that the heat generated when the light source module 4 works can be radiated through the heat conducting pipe 53 and the radiating substrate 51, the air flow is smoother and not disturbed when the light source module is radiated, and the heat accumulation generated when each assembly is used can be reduced, so that the long-term stable work of the whole light machine is ensured.

In the present embodiment, through holes are respectively provided at the upper and lower ends of the housing 1, a first heat dissipation plate 11 is provided at the upper end of the housing 1, a second heat dissipation plate 12 is provided at the lower end of the housing 1,

the optical lens group 3 is arranged between the first heat radiation plate 11 and the second heat radiation plate 12, the heat radiation fan 13 is arranged on the inner wall of the second heat radiation plate 12, the air outlet of the heat radiation fan 13 faces the optical lens group 3, and the second heat radiation plate 12, the radiator bellows 52 and the radiating fin component 54 are arranged side by side from left to right in sequence.

Through the structure, the air blown out from the heat radiation fan 13 radiates heat from the bottom to the top to the optical lens group 3 in the housing 1 of the optical machine, and the whole air flow penetrates through the optical lens group from bottom to top by adopting a bottom-to-top heat radiation mode, so that the aim of fully radiating heat is fulfilled; a radiator for radiating the light source component is arranged outside the optical machine of the projector, and heat generated by the working of the light source component is transferred to the heat conduction pipe and the radiating fin through the radiating substrate for radiating; the two independent heat dissipation systems arranged inside and outside the projector optical machine enable air flow to be smoother and not disturbed during heat dissipation, and heat accumulation generated by each component during use is reduced.

In this embodiment, the left and right ends of the radiator bellows 52 are provided with openings, the upper surfaces of the radiator bellows 52 are provided with air inlet holes, the upper ends of the two radiator fans 55 are provided with a first air inlet 551, the lower ends of the two radiator fans are provided with a second air inlet 552, the right ends of the two radiator fans are provided with air outlets 553, a mounting plate 521 is arranged in the radiator bellows 52, the middle of the mounting plate 521 is provided with an air outlet hole, the two radiator fans 55 are fixedly mounted on the inner wall of the upper end of the radiator bellows 52 and are abutted against the mounting plate 521, the first air inlet 551 of the radiator fans 55 is communicated with the air inlet hole of the radiator bellows 52, the second air inlet 552 is communicated with the opening at the left end of the radiator bellows 52, and the air outlets 553 are communicated with the air outlet hole of the mounting plate 521;

with the above structure, the air from the air inlet hole at the upper end of the radiator bellows 52 into the first air inlet 551 and the air from the opening at the left end of the radiator bellows 52 into the second air inlet 552 is blown toward the fin assembly 54 via the radiator fan 55 from the air outlet 553 into the air outlet hole of the mounting plate 521, thereby radiating the heat from the heat conduction pipe 53 and the heat radiation substrate 51.

In this embodiment, the fin assembly 54 includes a plurality of fins arranged in parallel at intervals, a groove is formed in the middle of the top end of the fin assembly 54, slots are formed in the upper edge and the lower edge of the fin respectively, through holes are formed in the middle of the fin,

the heat dissipation substrate 51 is located in the groove on the heat dissipation fin assembly 54, a plurality of embedded grooves are formed in one side of the heat dissipation substrate 51, one ends of the plurality of heat conduction pipes 53 are respectively inserted into the through holes or the slotted holes formed in the heat dissipation plate, and the other ends of the plurality of heat conduction pipes 53 are correspondingly embedded in the embedded grooves formed in the heat dissipation substrate 51, so that the heat transfer substrate 42 is fully contacted with the heat conduction pipes 41 and the heat dissipation plate group 3, and heat dissipation efficiency is improved.

In this embodiment, the upper left corner of the front and rear side walls of the radiator bellows 52 has an arc structure, the left edge of the upper side wall is provided with a plurality of clamping grooves 522, the right end of the second heat dissipation plate 12 is provided with a fixing plate 121, the fixing plate 121 is provided with a plurality of threaded holes corresponding to the plurality of clamping grooves 522 one by one, the radiator bellows 52 is connected under the second heat dissipation plate 12 by screws,

the right edge of the upper side wall of the radiator bellows 52 is positioned at the left side of the right edge of the lower side wall thereof, and the left end of the radiating fin assembly 54 is placed on the lower side wall of the opening at the right end of the radiator bellows 52 and is abutted with the upper side wall of the radiator bellows 52;

in this embodiment, the light source assembly 4 includes a substrate 41 and an electronic component, the electronic component is fixedly disposed on the substrate 41, a plurality of threaded holes are formed in the heat dissipation substrate 51 in one-to-one correspondence with the substrate 41, and the heat dissipation substrate 51 is screwed on the substrate by screws;

through the structure, the threaded structure on the radiator 5 with the double-fan structure is arranged, so that the radiator 5 is more convenient to assemble and disassemble from the shell 1 of the projector optical machine, and when the radiator 5 needs to be maintained and cleaned, the radiator 5 can be detached from the shell 1 only by unscrewing the screw, so that the damage to devices in the optical machine is avoided.

In the present embodiment, the optical lens group 3 includes a reflecting mirror 31, a first lens 32, a liquid crystal panel 33, a reflective polarizer 34, a second lens 35, and a lens holder 36, the first lens 32 and the liquid crystal panel 33 are disposed at left and right ends of the lens holder 36 at intervals from left to right, the reflecting mirror 31, the lens holder 36, the reflective polarizer 34, and the second lens 35 are disposed inside the housing 1 at intervals from left to right in order, and light emitted from the light source assembly 3 is reflected to the lens 2 for projection through the reflecting mirror 31 via the second lens 35, the reflective polarizer 34, the liquid crystal panel 33, and the first lens 32.

In the present embodiment, the upper and lower ends of the right side of the reflecting mirror 31 are respectively provided with a sealing plate 311, the edges of the sealing plate 311 are respectively and hermetically connected with the inner wall of the housing 1, the upper and lower ends of the lens bracket 36 and the right side surface of the reflecting mirror 31, the upper and lower side walls of the housing 1 positioned on the left side of the reflecting mirror 31 are respectively provided with a vent hole,

a plurality of radiating fins are transversely arranged on the inner walls of the first radiating plate 11 and the second radiating plate 12, the upper ends of the reflective polaroid and the second lens are respectively abutted with the radiating fins on the first radiating plate 11, the openings at the upper end and the lower end of the lens bracket 36 are arranged, the openings at the lower end are internally and communicatively provided with an air inlet component 361, the openings at the upper end are internally and communicatively provided with an air outlet component 362, and the air outlet component 362 is abutted with the radiating fins on the second radiating plate 12;

through the above structure, a part of the wind blown out by the heat radiation fan 13 is intercepted by the wind inlet component 361, enters the air inlet component through the opening at the lower end of the lens bracket 36, passes through the first lens 32 and the liquid crystal screen 33, flows out through the wind outlet component 362 communicated with the opening at the upper end of the lens bracket 36, and then flows leftwards along the heat radiation fins transversely arranged on the inner wall of the second heat radiation plate 12;

the wind which is not intercepted by the wind-in component 361 passes through the reflective polarizer 34 and the second lens 35 and flows leftwards along the radiating fins transversely arranged on the inner wall of the second radiating plate 12;

the two air flows leftwards in parallel, so that the phenomenon of mutual interference is avoided to influence the heat dissipation effect, then the air enters the first heat dissipation plate 11 through the vent holes arranged on the upper side wall and the lower side wall of the shell 1 on the left side of the reflecting mirror 31, and finally returns to the heat dissipation fan 13 to form circulating air flow.

In this embodiment, the wind inlet assembly 361 includes a wind deflector 3611, the wind deflector 3611 is inserted into an opening at the lower end of the lens support 36, the lower end of the wind deflector 3611 is in a curved structure, a curved concave surface at the lower end of the wind deflector 3611 is disposed towards an air outlet of the cooling fan 13, a part of wind energy blown by the cooling fan 13 is intercepted by the curved concave surface at the lower end of the wind deflector 3611 and enters the wind deflector 3611 through the opening at the lower end of the lens support 36, another part of wind flows to the reflective polarizer 34 and the second lens 35 along the curved convex surface at the lower end of the wind deflector 3611, a plurality of wind dividing plates 3612 are fixedly mounted on the wind deflector, and the left ends of the plurality of wind dividing plates 3612 are fixedly connected with the lens support 36 respectively, so that the wind intercepted by the curved concave surface at the lower end of the wind dividing plates 3611 can divide the wind, and the lenses disposed on the lens support 36 can sufficiently dissipate the heat;

the air-out subassembly 362 includes a plurality of air-out storehouse 3621, and a plurality of air-out storehouse 3621 sets up in the opening of lens support 36 upper end with the interval, and the air intake has been seted up to air-out storehouse 3621's bottom, and air intake and the inside intercommunication of lens support of air-out storehouse 3621 are provided with the air outlet on air-out storehouse 3621's the left side wall, and air-out storehouse 3621's upper right corner is the fillet setting, and the steady slick and sly flow of wind that conveniently flows through here avoids appearing turbulent phenomenon.

The utility model also provides a projector, which comprises a shell, and also comprises the optical machine with the radiator with the double-fan structure, wherein the optical machine with the radiator with the double-fan structure is arranged in the shell; a radiator for radiating the light source component is arranged outside the optical machine of the projector, and heat generated by the working of the light source component is transferred to the heat conduction pipe and the radiating fin through the radiating substrate for radiating; the two independent heat dissipation systems arranged inside and outside the projector optical machine enable air flow to be smoother and not disturbed during heat dissipation, and heat accumulation generated by each component during use is reduced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The light machine with the double-fan structure radiator is characterized by comprising a shell (1), wherein a lens (2) is arranged on the front side wall of the shell (1), an optical lens group (3) is arranged on the inner wall of the shell (1), a light source component (4) is arranged on the side wall of the shell (1) positioned on the right side of the optical lens group (3), light rays emitted by the light source component (4) are projected to the lens (2) through the optical lens group (3) for projection,

be provided with radiator (5) on the lateral wall of casing (1), radiator (5) are including radiating base plate (51), radiator bellows (52), a plurality of heat pipe (53) and fin subassembly (54), be provided with two radiator fans (55) side by side in radiator bellows (52), radiating base plate (51) set up on the lateral wall of light source subassembly (4), fin subassembly (54) set up on radiator bellows (52), just the air outlet orientation of radiator fans (55) fin subassembly (54), a plurality of the one end of heat pipe (53) is alternateed in fin subassembly (54), the other end with radiating base plate (51) are connected.

2. The bare engine with the double fan structure radiator according to claim 1, wherein the upper and lower ends of the housing (1) are respectively provided with a through hole, the upper end of the housing (1) is provided with a first heat dissipation plate (11), the lower end of the housing (1) is provided with a second heat dissipation plate (12),

the optical lens group (3) is arranged between the first radiating plate (11) and the second radiating plate (12), a radiating fan (13) is arranged on the inner wall of the second radiating plate (12), an air outlet of the radiating fan (13) faces the optical lens group (3), and the second radiating plate (12), a radiator bellows (52) and a radiating fin assembly (54) are sequentially arranged side by side from left to right.

3. The bare engine with the dual fan structure radiator according to claim 2, wherein the left and right ends of the radiator bellows (52) are provided with openings, air inlet holes are formed in the upper surfaces of the radiator bellows, a first air inlet (551) is formed in the upper ends of the two radiator fans (55), a second air inlet (552) is formed in the lower ends of the radiator bellows, an air outlet (553) is formed in the right ends of the radiator bellows, a mounting plate (521) is arranged in the radiator bellows (52), air outlet holes are formed in the middle of the mounting plate (521), the two radiator fans (55) are fixedly mounted on the inner wall of the upper end of the radiator bellows (52) and are abutted to the mounting plate (521), the first air inlet (551) of the radiator fans (55) is communicated with the air inlet holes of the radiator bellows (52), the second air inlet (552) is communicated with the opening in the left end of the radiator bellows (52), and the air outlet (553) is communicated with the air outlet holes of the mounting plate (521).

4. The bare engine with the dual fan structure according to claim 2, wherein the fin assembly (54) comprises a plurality of fins arranged in parallel at intervals, a groove is arranged at the middle part of the top end of the fin assembly (54), slotted holes are respectively arranged at the upper edge and the lower edge of the fin, a through hole is arranged at the middle part of the fin,

the heat dissipation substrate (51) is located in the groove on the heat dissipation fin assembly (54), a plurality of embedded grooves are formed in one side of the heat dissipation substrate (51), one ends of the heat conduction pipes (53) are respectively inserted into the through holes or the slotted holes on the heat dissipation plate, and the other ends of the heat conduction pipes are correspondingly embedded in the embedded grooves on the heat dissipation substrate (51).

5. The bare engine with the double fan structure radiator according to claim 2, wherein the upper left corner of the front and rear side walls of the radiator bellows (52) is of an arc structure, the left edge of the upper side wall is provided with a plurality of clamping grooves (522), the right end of the second radiating plate (12) is provided with a fixing plate (121), the fixing plate (121) is provided with a plurality of threaded holes in one-to-one correspondence with the plurality of clamping grooves (522),

the right edge of the upper side wall of the radiator bellows (52) is positioned on the left side of the right edge of the lower side wall of the radiator bellows, and the left end of the radiating fin assembly (54) is placed on the lower side wall of the opening of the right end of the radiator bellows (52) and is abutted with the upper side wall of the radiator bellows (52).

6. The bare engine with the dual fan structure heat sink according to claim 1, wherein the light source assembly (4) comprises a substrate (41) and electronic components, the electronic components are fixedly arranged on the substrate (41), a plurality of threaded holes are formed in the substrate (41), and a plurality of threaded holes are formed in the heat dissipation substrate (51) in a one-to-one correspondence with the substrate (41).

7. The bare engine with the dual fan structure heat sink according to claim 2, wherein the optical lens group (3) comprises a reflector (31), a first lens (32), a liquid crystal screen (33), a reflective polarizer (34), a second lens (35) and a lens support (36), the first lens (32) and the liquid crystal screen (33) are arranged at left and right ends of the lens support (36) at intervals from left to right, and the reflector (31), the lens support (36), the reflective polarizer (34) and the second lens (35) are arranged inside the shell (1) at intervals from left to right in sequence.

8. The bare engine with the double fan structure radiator according to claim 7, wherein the upper and lower ends of the right side of the reflector (31) are respectively provided with a sealing plate (311), the edges of the sealing plates (311) are respectively and hermetically connected with the inner wall of the shell (1), the upper and lower ends of the lens bracket (36) and the right side surface of the reflector (31), the upper and lower side walls of the shell (1) positioned on the left side of the reflector (31) are respectively provided with ventilation holes,

the novel solar heat radiation device is characterized in that a plurality of radiating fins are transversely arranged on the inner walls of the first radiating plate (11) and the second radiating plate (12), the upper ends of the reflective polarizer and the second lens are respectively abutted to the radiating fins on the first radiating plate (11), openings at the upper end and the lower end of the lens support (36) are arranged, an air inlet assembly (361) is arranged in the opening at the lower end in a communicated mode, an air outlet assembly (362) is arranged in the opening at the upper end in a communicated mode, and the air outlet assembly (362) is abutted to the radiating fins on the second radiating plate (12).

9. The bare engine with the double-fan structure radiator according to claim 8, wherein the wind inlet assembly (361) comprises an air deflector (3611), the air deflector (3611) is inserted into an opening at the lower end of the lens support (36), the lower end of the air deflector (3611) is of a curved structure, a curved concave surface at the lower end of the air deflector (3611) is arranged towards an air outlet of the heat radiation fan (13), a plurality of air deflectors (3612) are fixedly arranged on the air deflector, and the left ends of the plurality of air deflectors (3612) are fixedly connected with the lens support (36) respectively;

the air-out subassembly (362) is including a plurality of air-out storehouse (3621), and a plurality of air-out storehouse (3621) interval sets up in the opening of lens support (36), the air intake has been seted up to the bottom of air-out storehouse (3621), just the air intake of air-out storehouse (3621) with the inside intercommunication of lens support, be provided with the air outlet on the left side wall of air-out storehouse (3621), the upper right corner of air-out storehouse (3621) is the fillet setting.

10. A projector comprising a housing, further comprising a light engine having a dual fan structure heat sink as claimed in any one of claims 1 to 9, the light engine having a dual fan structure heat sink being disposed inside the housing.