CN218601670U - Projector heat dissipation device and projector - Google Patents

Abstract

The application relates to a projector heat abstractor and projector, the device include fuselage subassembly, camera lens subassembly and light source subassembly. The above-mentioned scheme that this application provided, when emission light source during operation, the heat that its produced mainly gathers on light path spare, open the internal circulation fan this moment, because the position of internal circulation fan corresponds with the position of light path spare, so the wind that the internal circulation fan produced will blow on the light path spare, thereby bring the heat into the inside air of fuselage subassembly from the light path spare surface, simultaneously, the inside air of fuselage subassembly can continue to flow through the second radiator, the second radiator is derived the heat in the air again, furthermore, the air continues to flow through first radiator, the heat in the air is derived again to first radiator, the air that finally goes through the cooling enters the internal circulation fan again and begins new heat exchange cycle.

Description

Projector heat dissipation device and projector

Technical Field

The application relates to the technical field of projectors, in particular to a projector heat dissipation device and a projector.

Background

The projector is a projection screen device which works by utilizing an optical amplification imaging principle, tiny dust particles fall on a liquid crystal screen of the projector, and obvious spots can be seen on the imaging screen after amplification. To solve this problem, it is desirable that the optical path section of the projector be designed to be closed to prevent dust contamination in the outside air.

Because the light source of projecting apparatus can produce a large amount of heats in the course of the work, and the heat is piled up and is particularly sensitive to the influence of LCD screen, will lead to projecting apparatus and inner member high temperature when the heat is piled up in the work intracavity to cause projecting apparatus work to lose efficacy or life-span reduction, therefore the radiating effect is very important to the influence of projecting apparatus.

Most of the existing projectors use an open light path to solve the problem of heat dissipation, but are easily polluted by dust points. Although some projectors adopt closed light paths, the heat dissipation structure is complex, the heat dissipation effect is poor, the price is high, and the projectors are inconvenient to use in a large range.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the present application provides a projector heat dissipation device and a projector, which not only adopt a closed light path, but also have a good heat dissipation effect, and can reduce the space volume of the projector.

The application provides a projector heat dissipation device, which comprises a machine body assembly, a lens assembly and a light source assembly, wherein the machine body assembly comprises a first shell, a second shell, a light path assembly, an internal circulation fan, a first radiator and an external circulation fan, and the first shell and the second shell are detachably connected to form a first inner cavity and a second inner cavity; the light path piece is arranged in a first inner cavity, the internal circulation fan, the first radiator and the external circulation fan are sequentially arranged in the second inner cavity along a first direction, and the position of the internal circulation fan corresponds to the position of the light path piece;

the lens assembly is arranged on the machine body assembly and matched with the light path assembly;

the light source assembly comprises a second radiator and an emission light source, the second radiator is arranged on the machine body assembly, the position of the second radiator corresponds to the position of the first radiator and the position of the external circulation fan, and the emission light source is located in the second radiator.

In one embodiment, the optical path component comprises a reflector, a front mirror, a liquid crystal screen and a liquid crystal screen bracket;

the reflecting mirror, the front mirror, the liquid crystal screen and the liquid crystal screen support are sequentially arranged in the first inner cavity along a first direction, the reflecting mirror is horizontally arranged at a preset angle, and the liquid crystal screen support are located above the emission light source.

In one embodiment, the body assembly further comprises a heat insulation plate, the heat insulation plate is arranged in the first inner cavity, and the heat insulation plate is located between the liquid crystal display and the liquid crystal display bracket and the emission light source.

In one embodiment, the first heat sink includes a first substrate, a plurality of first fins, and a plurality of second fins, the first substrate is disposed in the second cavity, the first fins and the second fins are disposed on two sides of the first substrate along the first direction, a gap is disposed between two adjacent first fins, and a gap is disposed between two adjacent second fins.

In one embodiment, the second heat sink includes a second substrate, a first sidewall, a second sidewall, a third fin, a fourth fin, a fifth fin, a sixth fin, and a seventh fin;

the first side wall and the second side wall are arranged on the same side of the second substrate, the first side wall and the second side wall are in inverted V-shaped structures, one end, far away from the second substrate, of the first side wall is connected with the inner wall of the first shell, and one end, far away from the second substrate, of the second side wall is connected with the inner wall of the second shell;

the third fins are arranged on the other side of the second substrate, the fourth fins and the fifth fins are correspondingly positioned on two opposite sides of the first side wall, and the sixth fins and the seventh fins are positioned on two opposite sides of the second side wall;

the emission light source is positioned on the second substrate and positioned between the first side wall and the second side wall;

the first radiator corresponds to the first side wall and the second side wall, and the outer circulation fan corresponds to the third fins.

In one embodiment, the emission light source comprises a light condensation hopper, a rear film mirror and an LED lamp panel;

the LED lamp panel is arranged on the second substrate and is positioned between the first side wall and the second side wall;

the light-gathering light hopper is positioned in an inner cavity between the first side wall and the second side wall, the rear film mirror is arranged on one side, away from the LED lamp panel, of the light-gathering light hopper, and the heat insulation plate is positioned between the liquid crystal display and the liquid crystal display support and the rear film mirror.

In one embodiment, the light source assembly further comprises a cover plate disposed at one side of the first and second sidewalls at the external space.

In one embodiment, the second heat sink further includes a first support portion disposed at an end of the first sidewall away from the second substrate, and a second support portion disposed at an end of the second sidewall away from the second substrate;

the supporting device is characterized in that a first clamping groove is formed in the first supporting portion, a second clamping groove is formed in the second supporting portion, the first clamping groove is matched with a first protrusion on the inner wall of the first shell, and the second clamping groove is matched with a second protrusion on the inner wall of the second shell.

In one embodiment, a first ventilation nozzle is arranged on the first shell, a second ventilation nozzle is arranged on the second shell, the position of the first ventilation nozzle corresponds to the position of the fifth fins, and the position of the second ventilation nozzle corresponds to the position of the seventh fins.

The application further provides a projector, which comprises a projector body and the projector heat dissipation device as described in any one of the description of the embodiment of the application, wherein the projector heat dissipation device is arranged on the projector body.

The beneficial effect of this application includes:

the application provides a projector heat abstractor, when emission light source during operation, the heat that its produced mainly gathers on light path spare, opens the internal circulation fan this moment, because the position of internal circulation fan is corresponding with the position of light path spare, so the wind that the internal circulation fan produced will blow on the light path spare, thereby bring the heat into the inside air of fuselage subassembly from light path spare surface, the inside air flow of fuselage subassembly is through the apron, the heat derivation in the apron is with the air. Meanwhile, the air in the machine body assembly continuously flows through the second radiator, the second radiator guides out the heat in the air again, further, the air continuously flows through the first radiator, the first radiator guides out the heat in the air again, and finally the cooled air enters the inner circulation fan again to start a new heat exchange circulation.

Further, after the external circulation fan sucks in low-temperature air from the outside, the sucked low-temperature air can also take away heat in the body assembly after passing through the second radiator due to the fact that the position of the external circulation fan corresponds to the position of the second radiator. And the first ventilation nozzle and the second ventilation nozzle further increase the heat dissipation capacity of the second heat sink. This application leads away the heat from the light path spare through the inner loop, has realized the forced convection heat transfer and the radiation heat transfer of a plurality of cooling surfaces through the extrinsic cycle again, compares traditional heat transfer mode, and the surface area of heat transfer is bigger, and radiating efficiency is higher. And the light path component is positioned in the first inner cavity, so that the pollution of the external environment is effectively avoided.

Drawings

Fig. 1 is a schematic structural diagram of a heat dissipation device of a projector according to an embodiment of the present disclosure;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a schematic view of the internal structure of FIG. 1;

FIG. 5 is a perspective view of FIG. 4

FIG. 6 is a partial schematic view of FIG. 5;

FIG. 7 is a schematic view of the second heat sink of FIG. 5;

FIG. 8 is a schematic view of the first heat sink of FIG. 5;

FIG. 9 is a schematic view of the internal structure of FIG. 1;

fig. 10 is yet another schematic view of fig. 1.

The figures are labeled as follows:

1. a fuselage assembly; 101. a first housing; 10101. a first ventilation nozzle; 102. a second housing; 103. a mirror; 104. front mirror; 105. a liquid crystal screen and a liquid crystal screen bracket; 106. a heat insulation plate; 107. an internal circulation fan; 108. a first heat sink; 10801. a first substrate; 10802. a first fin; 10803. a second fin; 109. an external circulation fan; 2. a lens assembly; 201. a lens; 202. a focusing ring; 203. a focusing gear; 204. a stepping motor; 205. a position photoreceptor; 3. a light source assembly; 301. a second heat sink; 30101. a second substrate; 30102. a first side wall; 30103. a second side wall; 30104. a third fin; 30105. a fourth fin; 30106. a fifth fin; 30107. a sixth fin; 30108. a seventh fin; 30109. a first support section; 30110. a second support portion; 302. a light-gathering light hopper; 303. a rear mirror; 304. a cover plate; 305. an LED lamp panel; s1, a first inner cavity; s2, a second inner cavity.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

As shown in fig. 1 to 9, in an embodiment of the present application, a heat dissipation apparatus for a projector is provided, including a body assembly 1, a lens assembly 2, and a light source assembly 3, where the body assembly 1 includes a first housing 101, a second housing 102, a light path assembly, an internal circulation fan 107, a first heat sink 108, and an external circulation fan 109, and the first housing 101 and the second housing 102 are detachably connected to form a first inner cavity S1 and a second inner cavity S2; the light path component is arranged in the first inner cavity, the internal circulation fan 107, the first radiator 108 and the external circulation fan 109 are sequentially arranged in the second inner cavity along the first direction, and the position of the internal circulation fan 107 corresponds to the position of the light path component; the lens component 2 is arranged on the machine body component 1, and the lens component 2 is matched with the light path component; the light source assembly 3 includes a second heat sink 301 and an emission light source, the second heat sink 301 is disposed on the body assembly 1, and the position of the second heat sink 301 corresponds to the positions of the first heat sink 108 and the outer circulation fan 109, and the emission light source is located in the second heat sink 301.

Illustratively, the first direction in this application is the X-axis direction as in fig. 7. As shown in fig. 2, the lens assembly 2 in the present application includes a lens 201, a focus adjustment ring 202, a focus adjustment gear 203, a stepping motor 204, and a position sensor 205, and since the connection structure of the lens 201, the focus adjustment ring 202, the focus adjustment gear 203, the stepping motor 204, and the position sensor 205 is the prior art, the description will not be repeated here.

When the light emitting source is used, when the light emitting source works, heat generated by the light emitting source is mainly collected on the optical path element, the internal circulation fan 107 is started, and the position of the internal circulation fan 107 corresponds to the position of the optical path element, so that wind generated by the internal circulation fan 107 can blow on the optical path element, heat is brought into air inside the body component from the surface of the optical path element, the air inside the body component can continuously flow through the second radiator 301, the second radiator 301 can guide out the heat in the air again, further, the air continuously flows through the first radiator, the first radiator can guide out the heat in the air again, and finally, the air after being cooled enters the internal circulation fan again to start a new heat exchange cycle.

Further, when the external circulation fan 109 sucks in low-temperature air from the outside, the low-temperature air first flows through the first heat sink, and takes away heat of the first heat sink. Since the position of the external circulation fan 109 corresponds to the position of the second heat sink 301, the sucked low temperature air also takes away heat in the body assembly after passing through the second heat sink 301. This application is through the inner loop to heat conduction light path spare on, realized the forced convection heat transfer and the radiation heat transfer of a plurality of cooling surfaces through the extrinsic cycle again, compare traditional heat transfer mode, the surface area of heat transfer is bigger, and radiating efficiency is higher. And the light path component is positioned in the first inner cavity, thereby effectively avoiding the pollution of the external environment.

In some embodiments, as shown in fig. 4, the optical path component in this application includes a reflector 103, a front mirror 104, a liquid crystal panel, and a liquid crystal panel bracket 105, where the reflector 103, the front mirror 104, and the liquid crystal panel and liquid crystal panel bracket 105 are sequentially disposed in the first inner cavity along a first direction, the reflector 103 is horizontal at a predetermined angle, and the liquid crystal panel and liquid crystal panel bracket 105 is located above the emission light source.

When the liquid crystal display panel is used, after the components are installed, the position of the internal circulation fan 107 corresponds to the position of the optical path member, that is, the position of the internal circulation fan 107 corresponds to the positions of the reflector 103, the front phenanthrene mirror 104, the liquid crystal display and the liquid crystal display bracket 105, so that the air blown out by the internal circulation fan 107 can quickly cool the reflector 103, the front phenanthrene mirror 104 and the liquid crystal display.

In some embodiments, in order to further reduce the temperature on the lcd panel, as shown in fig. 4 in combination with fig. 5, the body assembly 1 of the present application further includes a heat-insulating plate 106, the heat-insulating plate 106 is disposed in the first cavity, and the heat-insulating plate 106 is located between the lcd panel and the lcd panel holder 105 and the emission light source.

Illustratively, the insulating panel 106 is made of insulating glass, which can reduce the direct application of heat generated by the emitting light source to the liquid crystal panel.

In some embodiments, as shown in fig. 8, the first heat sink 108 of the present application includes a first substrate 10801, a plurality of first fins 10802, and a plurality of second fins 10803, wherein the first substrate 10801 is disposed in the second cavity, the first fins 10802 and the second fins 10803 are disposed on two sides of the first substrate 10801 along the first direction, and a gap is disposed between two adjacent first fins 10802 and a gap is disposed between two adjacent second fins 10803. In use, the external circulation fan 109 draws in ambient air at a low temperature, which passes through the second fins 10803 during drawing, thereby removing heat therefrom.

In some embodiments, as shown in fig. 7 in combination with fig. 6, the second heat sink 301 in the present application includes a second substrate 30101, a first side wall 30102, a second side wall 30103, a third fin 30104, a fourth fin 30105, a fifth fin 30106, a sixth fin 30107, and a seventh fin 30108, where the first side wall 30102 and the second side wall 30103 are disposed on the same side of the second substrate 30101, and the first side wall 30102 and the second side wall 30103 are in an inverted-eight structure, an end of the first side wall 30102 away from the second substrate 30101 is connected to an inner wall of the first casing 101, and an end of the second side wall 30103 away from the second substrate 30101 is connected to an inner wall of the second casing 102; the third fins 30104 are disposed on the other side of the second substrate 30101, the fourth fins 30105 and the fifth fins 30106 are correspondingly disposed on the two opposite sides of the first sidewall 30102, and the sixth fins 30107 and the seventh fins 30108 are disposed on the two opposite sides of the second sidewall 30103; an emission light source is located on the second substrate 30101 and between the first side wall 30102 and the second side wall 30103; the positions of the first heat sink 108 correspond to the positions of the first and second side walls 30102 and 30103, and the position of the outer circulation fan 109 corresponds to the positions of the third fins 30104.

The air inside the first cavity S1 of the present application is driven by the internal circulation fan 107 to blow through the rear mirror 303, the heat insulation plate 106, the lcd panel and lcd panel bracket 105, and the front mirror 104, and the heat is carried into the air inside the cavity from the surfaces of these components. The air in the first chamber S1 travels against the cover plate 304 and a portion of the heat is conducted away through the cover plate 304. The air in the first internal cavity S1 continues to flow through the fourth fins 30105 and the sixth fins 30107 on the second heat sink 301, and transfers heat in the air to the fifth fins 30106 and the seventh fins 30108 by thermal conduction.

In the flowing process, the air in the first cavity S1 also exchanges heat with the light-gathering light bucket 302, so that the heat on the surface of the light-gathering light bucket 302 is brought into the air, and the air in the first cavity S1 continuously flows to touch the first fins 10802 and the second fins 10803 on the first heat sink 108, so as to lead out the heat. Finally, the cooled air enters the internal circulation fan 107 again to start a new heat exchange cycle.

The external circulation fan 109 sucks in low-temperature ambient air from the front end and both sides of the apparatus, and the air passes through the second fins 10803 of the first heat sink 108 during the suction, thereby taking heat into the air. The air blown by the external circulation fan 109 flows through the third fins 30104 on the second heat sink 301, and takes away most of the heat generated by the LED lamp panel 305.

Meanwhile, as shown in fig. 10, a first ventilation nozzle 10101 is provided on the first housing 101, and a second ventilation nozzle is provided on the second housing 102, wherein the first ventilation nozzle 10101 corresponds to the fifth fins 30106, and the second ventilation nozzle corresponds to the seventh fins 30108.

When the external circulation fan 109 operates, air on both sides of the external circulation fan 109 is blown onto the fifth fins 30106 from the first ventilation nozzle 10101, and is blown onto the seventh fins 30108 from the second ventilation nozzle, so as to realize forced convection heat dissipation on both sides of the second heat sink 301.

In some embodiments, as shown in fig. 6 in combination with fig. 4, the emission light source in the present application includes a condenser funnel 302, a rear mirror 303, and an LED lamp panel 305, where the LED lamp panel 305 is disposed on a second substrate 30101 and located between a first side wall 30102 and a second side wall 30103; the condenser hopper 302 is located in an inner cavity between the first side wall 30102 and the second side wall 30103, the rear phenanthrene mirror 303 is arranged on one side, away from the LED lamp panel 305, of the condenser hopper 302, and the heat insulation plate 106 is located between the liquid crystal display and liquid crystal display bracket 105 and the rear phenanthrene mirror 303.

Because the LED lamp panel 305 is disposed on the second substrate 30101, heat generated by the LED lamp panel 305 during operation can be conducted out through the second substrate 30101 and the third fins 30104. Meanwhile, as the light-gathering light bucket 302 is positioned in the inner cavity between the first side wall 30102 and the second side wall 30103, the space is effectively utilized, and the volume of the whole device is reduced.

In some embodiments, as shown in fig. 4, light source assembly 3 further includes a cover plate 304, and cover plate 304 is disposed on one side of first side wall 30102 and second side wall 30103 located in the external space.

The cover plate 304 is made of metal, and the cover plate 304 not only enables the LED lamp panels 305 located in the first side wall 30102 and the second side wall 30103 to be located in a sealed space after installation, but also facilitates heat in the inner cavity to be LED out of the cover plate 304.

In some embodiments, as shown in fig. 7, the second heat sink 301 further includes a first support portion 30109 and a second support portion 30110, where the first support portion 30109 is disposed at an end of the first side wall 30102 far from the second substrate 30101, and the second support portion 30110 is disposed at an end of the second side wall 30103 far from the second substrate 30101; the first support part 30109 is clamped with the first shell 101, and the second support part 30110 is clamped with the second shell 102.

Further, in order to facilitate installation, a first clamping groove is formed in the first supporting portion 30109, a second clamping groove is formed in the second supporting portion 30110, the first clamping groove is matched with a first protrusion on the inner wall of the first shell 101, and the second clamping groove is matched with a second protrusion on the inner wall of the second shell 102.

The application also provides a projector, which comprises a projector body and the projector heat dissipation device as described in the embodiment of the application, wherein the projector heat dissipation device is arranged on the projector body.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The heat dissipation device of the projector is characterized by comprising a machine body assembly (1), a lens assembly (2) and a light source assembly (3), wherein the machine body assembly (1) comprises a first shell (101), a second shell (102), a light path component, an internal circulation fan (107), a first heat sink (108) and an external circulation fan (109), and the first shell (101) and the second shell (102) are detachably connected to form a first inner cavity and a second inner cavity; the light path piece is arranged in a first inner cavity, the internal circulation fan (107), the first radiator (108) and the external circulation fan (109) are sequentially arranged in the second inner cavity along a first direction, and the position of the internal circulation fan (107) corresponds to the position of the light path piece;

the lens component (2) is arranged on the machine body component (1), and the lens component (2) is matched with the light path component;

the light source assembly (3) comprises a second radiator (301) and an emission light source, the second radiator (301) is arranged on the machine body assembly (1), the position of the second radiator (301) corresponds to the position of the first radiator (108) and the position of the outer circulation fan (109), and the emission light source is located in the second radiator (301).

2. The heat sink for projectors according to claim 1, wherein the optical path member comprises a reflector (103), a front mirror (104), a liquid crystal panel and a liquid crystal panel support (105);

the reflecting mirror (103), the front mirror (104) and the liquid crystal screen and liquid crystal screen support (105) are sequentially arranged in the first inner cavity along a first direction, the reflecting mirror (103) is horizontally arranged at a preset angle, and the liquid crystal screen and liquid crystal screen support (105) are located above the emission light source.

3. The heat dissipating device of a projector as claimed in claim 2, wherein the body assembly (1) further comprises a heat insulating plate (106), the heat insulating plate (106) is disposed in the first inner cavity, and the heat insulating plate (106) is located between the lcd panel and the lcd panel holder (105) and the emission light source.

4. The heat sink for projectors according to claim 3, wherein the first heat sink (108) comprises a first substrate (10801), a plurality of first fins (10802), and a plurality of second fins (10803), wherein the first substrate (10801) is disposed in the second cavity, the first fins (10802) and the second fins (10803) are disposed on two sides of the first substrate (10801) along the first direction, a gap is disposed between two adjacent first fins (10802), and a gap is disposed between two adjacent second fins (10803).

5. The heat sink device according to claim 4, wherein the second heat sink (301) comprises a second substrate (30101), a first sidewall (30102), a second sidewall (30103), third fins (30104), fourth fins (30105), fifth fins (30106), sixth fins (30107), and seventh fins (30108);

the first side wall (30102) and the second side wall (30103) are arranged on the same side of the second substrate (30101), the first side wall (30102) and the second side wall (30103) are in an inverted eight-character structure, one end, far away from the second substrate (30101), of the first side wall (30102) is connected with the inner wall of the first shell (101), and one end, far away from the second substrate (30101), of the second side wall (30103) is connected with the inner wall of the second shell (102);

the third fins (30104) are arranged on the other side of the second substrate (30101), the fourth fins (30105) and the fifth fins (30106) are correspondingly located on two opposite sides of the first side wall (30102), and the sixth fins (30107) and the seventh fins (30108) are located on two opposite sides of the second side wall (30103);

the emission light source is located on the second substrate (30101) and between the first sidewall (30102) and the second sidewall (30103);

the position of the first heat sink (108) corresponds to the positions of the first side wall (30102) and the second side wall (30103), and the position of the outer circulation fan (109) corresponds to the position of the third fin (30104).

6. The heat sink for projectors as claimed in claim 5, wherein the emission light source comprises a condenser funnel (302), a rear mirror (303) and an LED lamp panel (305);

the LED lamp panel (305) is arranged on the second substrate (30101) and is positioned between the first side wall (30102) and the second side wall (30103);

spotlight light fill (302) are located in first lateral wall (30102) with in the inner chamber between second lateral wall (30103), back phenanthrene mirror (303) set up spotlight light fill (302) deviates from one side of LED lamp plate (305), heat insulating board (106) are located LCD screen and LCD screen support (105) with back phenanthrene mirror (303).

7. The heat sink according to claim 5, wherein the light source module (3) further comprises a cover plate (304), and the cover plate (304) is disposed on one side of the first side wall (30102) and the second side wall (30103) which are located at the external space.

8. The heat sink device according to claim 5, wherein the second heat sink (301) further comprises a first support portion (30109) and a second support portion (30110), the first support portion (30109) is disposed at an end of the first side wall (30102) away from the second substrate (30101), and the second support portion (30110) is disposed at an end of the second side wall (30103) away from the second substrate (30101);

the first supporting portion (30109) is provided with a first clamping groove, the second supporting portion (30110) is provided with a second clamping groove, the first clamping groove is matched with a first protrusion on the inner wall of the first shell (101), and the second clamping groove is matched with a second protrusion on the inner wall of the second shell (102).

9. The heat sink for projectors according to claim 5, wherein a first ventilation nozzle (10101) is disposed on the first housing (101), a second ventilation nozzle is disposed on the second housing (102), the first ventilation nozzle (10101) corresponds to the fifth fins (30106), and the second ventilation nozzle corresponds to the seventh fins (30108).

10. A projector comprising a projector body and the projector heat sink according to any one of claims 1 to 9, the projector heat sink being provided on the projector body.

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