CN218240645U

CN218240645U - Projection optical machine

Info

Publication number: CN218240645U
Application number: CN202220998750.2U
Authority: CN
Inventors: 张锦
Original assignee: Chengdu Jiutian Huaxin Technology Co ltd
Current assignee: Chengdu Jiutian Huaxin Technology Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2023-01-06
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a projection light machine, which comprises an imaging system and an illuminating system arranged below the imaging system, wherein the illuminating system also comprises an illuminating heat sink and a first heat pipe; the illumination heat dissipation heat sink is arranged at the bottom of the illumination portion, one end of the first heat pipe is connected with the illumination heat dissipation heat sink, and the other end of the first heat pipe is pulled to the top of the imaging portion to be connected with the imaging heat dissipation assembly for dissipating heat outwards. Through adopting the utility model discloses the projection ray apparatus of structure has not only realized carrying out the purpose of diversified abundant cooling to projection ray apparatus inside, but also has effectually avoided coming the purpose of cooling to it through the inner space that increases projection ray apparatus to for reduce cost, the volume of reducing the projection ray apparatus has established the basis, and then also effectual product property ability and the market competition who has promoted this projection ray apparatus.

Description

Projection optical machine

Technical Field

The utility model belongs to the technical field of the projection ray apparatus, especially, relate to a projection ray apparatus.

Background

The existing projection optical machine mostly adopts an internal and external isolation type design, a heat exchanger refrigerating device is used as a top cover of the projector, an external circulation channel and an internal circulation channel which are isolated from each other are arranged in the heat exchanger refrigerating device, the heat exchanger refrigerating device is communicated with the external environment only through an external air inlet and an external air outlet, and the external air inlet and the external air outlet are also isolated from the inner space of the projector due to the isolation between the external circulation channel and the internal circulation channel, so that a relatively closed space is formed in the projector, dust and moisture brought by air entering from the external air inlet are prevented from entering the projector, and the dustproof and waterproof effects of the inner part of the projector are achieved. However, such a structure tends to have disadvantages of a large volume, a large heat sink, and a large number of heat dissipation fans with large noise. Therefore, on the basis of keeping the internal and external isolation type design, the main problem of the current internal and external isolation type projection optical machine is solved by fully utilizing the space, fully utilizing the existing cooling fan and not additionally increasing the cooling fan. The method fully utilizes the ventilation capacity of the imaging system cooling fan at the top of the projector, so that on one hand, the imaging system is cooled, and on the other hand, the illumination system shares a part of cooling capacity; other supplementary methods also include fully utilizing the residual space at the top and accommodating enough radiating fins under the condition of not increasing the volume of the whole machine; secondly, a high-power radiating fan of the lighting system is fully utilized, so that on one hand, heat is radiated for a high-power lighting source; on the other hand, the heat dissipation capacity of the fan is fully utilized to carry out auxiliary heat dissipation on the imaging system. Therefore, under the condition that the size is not increased and the fan is not additionally arranged, the whole light machine is fully radiated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a projection ray apparatus has solved the poor, bulky problem of projection ray apparatus cooling effect among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a projection light machine comprises an imaging system and an illumination system arranged below the imaging system; the imaging system comprises an imaging part and an imaging main heat dissipation component, wherein the imaging main heat dissipation component is arranged at the top of the imaging part; the illumination system comprises an illumination part and a main illumination heat dissipation assembly, wherein the main illumination heat dissipation assembly is arranged outside the illumination part, air enters the whole machine from one side and flows through the surface of the projector machine by taking the optical axis of the projector lens as the center, and the main illumination heat dissipation assembly is arranged at the other side; after air enters from one side of the imaging part, a part of air is blown out of the whole machine from the top of the imaging part through the imaging main heat dissipation assembly; the other part of the light passes through the main lighting heat dissipation component from the lower part of the lighting part and is blown out of the whole machine, so that the projection light machine is cooled;

in addition, the lighting system also comprises a lighting auxiliary heat dissipation assembly, one end of the lighting auxiliary heat dissipation assembly is positioned in the lighting part, and the other end of the lighting auxiliary heat dissipation assembly is connected with the imaging main heat dissipation assembly and used for carrying out auxiliary heat dissipation outwards;

the imaging system further comprises an imaging auxiliary heat dissipation assembly, and the imaging auxiliary heat dissipation assembly is located at the lower portion of the imaging portion and used for conducting auxiliary heat dissipation outwards.

Preferably, the imaging main heat dissipation assembly comprises a first astigmatic heat fin assembly, an imaging heat exchanger and an imaging heat dissipation fan, the imaging heat exchanger is arranged on one side of the imaging heat dissipation fan close to the inside of the imaging part, and the first astigmatic heat fin assembly is arranged on one side of the imaging heat dissipation fan opposite to the imaging part heat exchanger;

when the optical projection machine works, the imaging heat radiation fan drives air flow, the air flow is sucked away from the imaging heat exchanger and blown to the first imaging heat radiation fin assembly until the first imaging heat radiation fin assembly reaches the outside of the optical projection machine.

Preferably, the imaging auxiliary heat dissipation assembly comprises a heat absorption end, a first heat pipe and a second imaging auxiliary heat dissipation fin assembly; one end of the first heat pipe is connected with the heat absorption end, the other end of the first heat pipe passes through the second imaging heat dissipation fin assembly and is drawn to the other side of the imaging part to be connected with the illumination main heat dissipation assembly, and the illumination main heat dissipation assembly is utilized to conduct auxiliary heat dissipation outwards.

Preferably, the imaging auxiliary heat dissipation assembly comprises a heat absorption end, a first heat pipe and a second imaging auxiliary heat dissipation fin assembly; one end of the first heat pipe is connected with the heat absorption end, the other end of the first heat pipe is drawn to the top of the imaging part to be parallel to the imaging radiating fin group, and the imaging radiating fan is used for conducting auxiliary radiating outwards.

Preferably, the main lighting heat dissipation assembly comprises a lighting heat dissipation fin assembly, a second heat pipe and a lighting heat dissipation fan; the lighting heat radiation fan is arranged on one side of the lighting part, and is arranged on the other side opposite to the air inlet side of the whole machine by taking the lens optical axis of the projection light machine as the center, one end of the second heat pipe is connected with the lighting auxiliary heat radiation component, and the other end of the second heat pipe is connected with the lighting heat radiation fin component and used for radiating heat outwards.

When the projector works, the illumination heat dissipation fan drives the airflow to suck the airflow away from the illumination heat dissipation fin assembly and blow the airflow out of the projector.

Preferably, the illumination auxiliary heat dissipation assembly comprises an illumination heat dissipation heat sink and a third heat pipe, the illumination heat dissipation heat sink is arranged at the bottom of the illumination portion, one end of the third heat pipe is connected with the illumination heat dissipation heat sink, and the other end of the third heat pipe is pulled to the top of the imaging portion to be connected with the first light-forming heat fin assembly for performing auxiliary heat dissipation outwards.

Preferably, a sound cavity is further arranged in the lighting part, is located below the imaging part, is opposite to the lighting heat dissipation assembly in position, and is located on one side of an air inlet with the lens optical axis as the center.

Compared with the prior art, the utility model discloses a top in formation of image portion sets up the main radiator unit of formation of image, below in formation of image portion sets up the supplementary radiator unit of formation of image, set up the main radiator unit of illumination outside illumination portion, and the supplementary radiator unit of illumination, at the during operation, the heat of projection ray apparatus formation of image portion can be under the effect of the main radiator unit of formation of image and the supplementary radiator unit of formation of image, discharge to the outside of complete machine through the main radiator unit of formation of image and the supplementary radiator unit of formation of image, the heat of the illumination portion of projection ray apparatus, and discharge to the outside of complete machine through the main radiator unit of illumination and the supplementary radiator unit of illumination under the effect of the main radiator unit of illumination and the supplementary radiator unit of illumination. Therefore, the purpose of fully cooling the interior of the projection optical machine in multiple directions is achieved, the purpose of heat dissipation is effectively achieved by increasing the internal space of the projection optical machine without additionally increasing a heat dissipation fan, so that the foundation is laid for reducing the noise of the fan and reducing the volume of the projection optical machine, and the product performance and market competitiveness of the projection optical machine are effectively improved; in addition, the projector has compact internal structure and small volume, and is worthy of being widely popularized and used.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic perspective view of a projection optical machine according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a projection optical machine according to another view angle provided by the embodiment of the present invention;

fig. 3 is a schematic perspective view of a projection optical machine provided in an embodiment of the present invention at a third viewing angle;

fig. 4 is a schematic perspective view of a projection optical machine provided in an embodiment of the present invention at a fourth viewing angle;

fig. 5 is a schematic perspective view of a projection optical machine according to an embodiment of the present invention at a fifth viewing angle;

fig. 6 is an exploded view of an imaging cooling scale assembly in a projection optical engine according to an embodiment of the present invention;

fig. 7 is an exploded view of an illumination heat dissipation scale assembly in a projection light machine according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be clear that the terms "vertical", "horizontal", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention, and do not mean that the device or element referred to must have a unique orientation or position, and thus, cannot be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the present invention provides a projection optical machine, as shown in fig. 1-7, including an imaging system 1 and an illumination system 2 disposed below the imaging system 1; the imaging system 1 comprises an imaging part 11 and an imaging main heat dissipation component 12, wherein the imaging main heat dissipation component 12 is arranged on the top of the imaging part 11; the lighting system 2 comprises a lighting part 21 and a lighting main heat dissipation assembly 22, the lighting main heat dissipation assembly 22 is arranged outside the lighting part 21, the air enters the whole machine from one side and flows through the surface of the projector machine by taking the optical axis of the lens of the projector as the center, and the lighting main heat dissipation assembly 22 is arranged at the other side; after air enters from one side of the imaging part 11, a part of the air is blown out of the whole machine from the top of the imaging part 11 through the imaging main heat dissipation component 12; the other part of the light passes through the lighting main heat dissipation component 22 from the lower part of the lighting part 21 and is blown out of the whole machine, so that the heat dissipation of the projection light machine is realized;

in addition, the lighting system 2 further comprises a lighting auxiliary heat dissipation assembly 23, one end of the lighting auxiliary heat dissipation assembly 23 is located inside the lighting portion 21, and the other end of the lighting auxiliary heat dissipation assembly 23 is connected with the imaging main heat dissipation assembly 12 and used for performing auxiliary heat dissipation outwards;

the imaging system 1 further includes an imaging auxiliary heat dissipation assembly 13, and the imaging auxiliary heat dissipation assembly 13 is located at a lower portion of the imaging portion 11 and is configured to perform auxiliary heat dissipation to the outside.

After the scheme is adopted, the imaging main heat dissipation assembly 12 is arranged at the top of the imaging part 11, the imaging auxiliary heat dissipation assembly 13 is arranged below the imaging part 11, the illumination main heat dissipation assembly 22 is arranged outside the illumination part 21, one end of the illumination auxiliary heat dissipation assembly 23 is positioned inside the illumination part 21, and the other end of the illumination auxiliary heat dissipation assembly 23 is connected with the imaging main heat dissipation assembly 12, so that when the projection optical machine is used, part of heat inside the projection optical machine can be discharged to the outside of the whole machine under the action of the imaging main heat dissipation assembly 12 and the imaging auxiliary heat dissipation assembly 13 and through the imaging main heat dissipation assembly 12 and the imaging auxiliary heat dissipation assembly 13, the other part of heat can also be discharged to the outside of the whole machine under the action of the illumination main heat dissipation assembly 22 and the illumination auxiliary heat dissipation assembly 23 and through the illumination main heat dissipation assembly 22 and the illumination auxiliary heat dissipation assembly 23, therefore, the purpose of fully cooling the inside of the projection optical machine in multiple directions is achieved, and the purpose of cooling the projection optical machine by increasing the inner space of the projection optical machine is effectively avoided, the cost is lowered, the volume of the projection optical machine is reduced, and the foundation, and the market and the performance of the projection optical machine is effectively improved.

In this embodiment, the imaging main heat dissipation assembly 12 includes a first astigmatic heat fin assembly 121, an imaging heat exchanger 122, and an imaging heat dissipation fan 123, the imaging heat exchanger 122 being disposed on a side of the imaging heat dissipation fan 123 close to the inside of the imaging portion 11, the first astigmatic heat fin assembly 121 being disposed on an opposite side of the imaging heat dissipation fan 123 from the imaging portion heat exchanger 122;

in operation, the imaging cooling fan 123 drives the airflow, which is drawn from the imaging heat exchanger 122 and blown towards the first imaging cooling fin assembly 121 to the exterior of the projector. By adopting the imaging heat dissipation assembly 12 composed of the first imaging heat fin assembly 121, the imaging heat exchanger 122 and the imaging heat dissipation fan 123, and arranging the imaging heat exchanger 122 at one side of the imaging heat dissipation fan 123 close to the inside of the imaging part 11, and arranging the first imaging heat fin assembly 121 at one side of the imaging heat dissipation fan 123 opposite to the imaging part heat exchanger 122, during operation, the heat inside the projection light machine can be discharged to the outside of the projection light machine sequentially through the imaging heat exchanger 122, the imaging heat dissipation fan 123 and the first imaging heat fin assembly 121, thereby effectively achieving the purpose of fully cooling the heat generated inside the imaging part 11.

In this embodiment, the imaging auxiliary heat sink assembly 13 includes a heat absorbing end 131 and a first heat pipe 132 and a second imaging auxiliary heat fin assembly 133; one end of the first heat pipe 132 is connected to the heat absorbing end 131, and the other end of the first heat pipe passes through the second imaging heat dissipation fin assembly 133 and is drawn to the other side of the imaging part 11 to be connected to the illumination main heat dissipation assembly 22, and the illumination main heat dissipation assembly 22 is utilized to perform auxiliary heat dissipation to the outside.

By arranging the imaging auxiliary heat dissipation assembly 13 consisting of the heat absorption end 131, the first heat pipe 132 and the second imaging heat dissipation fin assembly 133 in the imaging part 1, arranging the heat absorption end 131 on one side of the imaging part 11 close to the air inlet, connecting one end of the first heat pipe 132 with the heat absorption end 131, and connecting the other end of the first heat pipe 132 with the illumination main heat dissipation assembly 12 through the second imaging heat dissipation fin assembly 133 and drawing the top of the imaging part 11, the purposes of more sufficient heat dissipation and cooling through the imaging auxiliary heat dissipation assembly 13 are further realized under the action of the illumination main heat dissipation assembly 22 in the imaging part 11 and the illumination part 21, and thus, the foundation is further laid for reducing the cost and reducing the volume of the projection light machine.

In another embodiment, under the condition of the same components, one end of the first heat pipe 132 is connected to the heat absorbing end 131, and the other end is drawn to the top of the imaging portion 11, and is parallel to the first imaging thermal group fin assembly 121, and the imaging heat dissipation fan 123 is used to dissipate heat outwards, so that the purpose of dissipating heat and cooling the inside of the imaging portion 11 more fully through the imaging auxiliary heat dissipation assembly 13 under the action of the imaging main heat dissipation assembly 12 is further achieved, and a foundation is further laid for reducing the cost and the size of the projection optical engine.

In this embodiment, the illumination main heat dissipation assembly 22 includes an illumination heat dissipation fin assembly 221, a second heat pipe 222, an illumination heat dissipation fan 223; the illumination heat dissipation fan 223 is disposed on one side of the illumination portion 21, and on the other side opposite to the air inlet side of the whole machine with the lens optical axis of the projection light machine as the center, one end of the second heat pipe 222 is connected to the illumination auxiliary heat dissipation assembly 23, and the other end is connected to the illumination heat dissipation fin assembly 221 for dissipating heat to the outside.

In operation, the illumination heat dissipation fan 223 drives the airflow to suck the airflow away from the illumination heat dissipation fin assembly 221 and blow the airflow out of the projector engine.

By adopting the main illumination heat dissipation assembly 22 composed of the illumination heat dissipation fin assembly 221, the second heat pipe 222 and the illumination heat dissipation fan 223, and arranging the illumination heat dissipation fan 223 on one side of the illumination portion 21, wherein the side where the illumination heat dissipation fan 223 is located is opposite to the side of the air inlet on the imaging portion 11, the illumination heat dissipation fin assembly 221 is arranged on one side of the illumination heat dissipation fan 223 close to the inside of the illumination portion 21, one end of the second heat pipe 222 is connected with the illumination heat dissipation heat sink 23, and the other end is connected with the illumination heat dissipation fin assembly 221, thereby effectively achieving the purpose of fully cooling the heat generated inside the illumination portion 21.

In this embodiment, the illumination auxiliary heat sink assembly 23 includes an illumination heat sink 231 and a third heat pipe 232, the illumination heat sink 231 is disposed at the bottom of the illumination portion 21, one end of the third heat pipe 232 is connected to the illumination heat sink 231, and the other end is drawn to the top of the imaging portion 11 to be connected to the first imaging heat fin assembly 121 for auxiliary heat dissipation to the outside;

in addition, the number of the third heat pipes 232 is at least two, and the foundation is laid for accelerating heat transfer by arranging the at least two third heat pipes 232. In this embodiment, the illuminating portion 21 is further provided with an acoustic cavity 211, and the acoustic cavity 211 is located below the imaging portion 1, opposite to the position of the illuminating main heat dissipating assembly 22, and located on the side of the air inlet with the optical axis of the lens as the center.

By providing the sound chamber 211 inside the illumination portion 21, not only the purpose of maximizing the volume can be achieved, but also the sound quality can be made better.

In this embodiment, the first radiating fin member 121 includes a plurality of first radiating fins 1211, the first radiating fins 1211 are vertically arranged side by side, a gap is formed between every two adjacent first radiating fins 1211, and the first radiating fins 1211 are fixedly connected to each other through the first heat pipe 24.

By arranging a plurality of first heat dissipating fins 1211 in a vertical side-by-side manner, a gap is formed between every two adjacent first heat dissipating fins 1211, so that heat can flow to the imaging main heat dissipating component 12 through the gap and be discharged to the outside; the first heat dissipating fins 1211 are fixedly connected to each other through the third heat pipe 232, so that heat in the third heat pipe 232 can be more effectively transmitted to the first light-emitting radiating fin members 121, and the efficiency of exhausting the heat to the outside is also improved.

In this embodiment, the second heat dissipating fin assembly 133 includes a plurality of second heat dissipating fins 1331, the plurality of second heat dissipating fins 1331 are vertically arranged side by side, a gap is formed between every two adjacent second heat dissipating fins 1331, and the plurality of second heat dissipating fins 1331 are fixedly connected to each other through the first heat pipe 132.

By arranging a plurality of second heat dissipation scales 1331 vertically side by side, a gap is formed between every two adjacent second heat dissipation scales 1331, so that heat in the lighting part 21 can flow to the lighting main heat dissipation assembly 12 through the gap and be discharged to the outside; the plurality of second heat dissipating fins 1331 are fixedly connected to each other by the first heat pipe 132, so that not only the heat in the first heat pipe 132 can be more effectively transmitted to the second heat dissipating fin assembly 133, but also the efficiency of discharging the heat to the outside is improved.

As shown in fig. 7, in this embodiment, the lighting heat dissipating fin assembly 221 includes a plurality of third heat dissipating scales 2211, the plurality of third heat dissipating scales 2211 are vertically arranged side by side, a gap is formed between every two adjacent third heat dissipating scales 2211, and the plurality of third heat dissipating scales 2211 are fixedly connected to each other through the second heat pipe 222.

By arranging a plurality of third heat dissipation scales 2211 vertically side by side, a gap is formed between every two adjacent third heat dissipation scales 2211, so that heat can flow to the lighting heat dissipation fan 223 through the gap and be discharged to the outside; the plurality of third heat dissipating fins 2211 are fixedly connected to each other through the second heat pipe 222, so that not only can the heat in the second heat pipe 222 be more effectively transmitted to the lighting heat dissipating fin assembly 221, but also the efficiency of discharging the heat to the outside is improved.

The cooling principle of the projection optical machine provided by the embodiment of the invention is as follows (shown in specific figures 1-7):

when the projection optical machine is in an operating state, negative pressure is generated at one side of the imaging cooling fan 123 and the illumination cooling fan 223 close to the inside of the projection optical machine, external cold air enters the imaging part 11 from one side of the projection optical machine under the action of the negative pressure, at this time, a part of heat in the imaging part 11 passes through the first imaging cooling fin assembly 121 and is discharged to the outside under the action of the imaging main cooling fin assembly 12, and the other part passes through the second imaging cooling fin assembly 133 and is discharged to the outside under the action of the imaging cooling fan 123; while a part of the heat in the illumination part 21 passes through the illumination heat dissipation fin assembly 221 and is discharged to the outside by the illumination heat dissipation fan 223, and the other part passes through the first imaging heat dissipation fin assembly 121 and is discharged to the outside by the imaging heat dissipation fan 123 by the illumination heat dissipation heat sink 231 and the third heat pipe 232; like this, not only realized carrying out the inside purpose of fully cooling to the projection ray apparatus, but also effectual avoided coming the purpose of cooling to it through the inner space that increases the projection ray apparatus to for reduce cost, reduce the volume of projection ray apparatus and establish the basis, and then also effectual product property ability and the market competition that has promoted this projection ray apparatus.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements or improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A projection light machine comprises an imaging system (1) and an illumination system (2) arranged below the imaging system (1); the imaging system (1) comprises an imaging part (11) and an imaging main heat dissipation component (12), wherein the imaging main heat dissipation component (12) is arranged at the top of the imaging part (11); the lighting system (2) comprises a lighting part (21) and a main lighting heat dissipation component (22), wherein the main lighting heat dissipation component (22) is arranged outside the lighting part (21), and is characterized in that:

the optical axis of the lens of the projector is taken as the center, air enters the whole machine from one side and flows through the surface of the projector, and the main lighting and heat dissipation assembly (22) is arranged at the other side; after air enters from one side of the imaging part (11), a part of air is blown out of the whole machine from the top of the imaging part (11) through the imaging main heat dissipation component (12); the other part of the light passes through a main lighting heat dissipation assembly (22) from the lower part of the lighting part (21) and is blown out of the whole machine, so that the heat dissipation of the projection light machine is realized;

in addition, the lighting system (2) further comprises a lighting auxiliary heat dissipation assembly (23), one end of the lighting auxiliary heat dissipation assembly (23) is located inside the lighting part (21), and the other end of the lighting auxiliary heat dissipation assembly is connected with the imaging main heat dissipation assembly (12) and used for conducting auxiliary heat dissipation outwards;

the imaging system (1) further comprises an imaging auxiliary heat dissipation assembly (13), and the imaging auxiliary heat dissipation assembly (13) is located at the lower portion of the imaging portion (11) and used for conducting auxiliary heat dissipation outwards.

2. The projection optical machine according to claim 1, wherein the imaging main heat sink assembly (12) comprises a first imaging thermal fin assembly (121), an imaging heat exchanger (122) and an imaging heat sink fan (123), the imaging heat exchanger (122) is arranged at a side of the imaging heat sink fan (123) close to the inside of the imaging part (11), the first imaging thermal fin assembly (121) is arranged at a side of the imaging heat sink fan (123) opposite to the imaging part heat exchanger (122);

when the optical projection machine works, the imaging cooling fan (123) drives air flow, the air flow is sucked away from the imaging heat exchanger (122) and blown to the first imaging cooling fin assembly (121) to the outside of the optical projection machine.

3. The projection light machine according to claim 1 or 2, characterized in that the imaging auxiliary heat sink assembly (13) comprises a heat absorbing end (131) and a first heat pipe (132) and a second astigmatic heat fin assembly (133); one end of the first heat pipe (132) is connected with the heat absorption end (131), the other end of the first heat pipe passes through the second imaging heat dissipation fin assembly (133) and is drawn to the other side of the imaging part (11) to be connected with the illumination main heat dissipation assembly (22), and auxiliary heat dissipation is carried out on the outside by the illumination main heat dissipation assembly (22).

4. The projection light engine according to claim 1 or 2, characterized in that the imaging auxiliary heat sink assembly (13) comprises a heat absorbing end (131) and a first heat pipe (132) and a second imaging heat fin assembly (133); one end of the first heat pipe (132) is connected with the heat absorption end (131), the other end of the first heat pipe is drawn to the top of the imaging part (11) to be parallel to the first imaging heat fin component (121), and the imaging heat radiation fan (123) is used for conducting auxiliary heat radiation outwards.

5. The projection light machine of claim 2, wherein the illumination main heat dissipation assembly (22) comprises an illumination heat dissipation fin assembly (221), a second heat pipe (222), an illumination heat dissipation fan (223); the illumination heat radiation fan (223) is arranged on one side of the illumination part (21) and on the other side opposite to the air inlet side of the whole machine by taking the lens optical axis of the projection light machine as the center, one end of the second heat pipe (222) is connected with the illumination auxiliary heat radiation component (23), the other end is connected with the illumination heat radiation fin component (221) for radiating heat to the outside,

when the projector is in work, the illumination heat dissipation fan (223) drives air flow, the air flow is sucked away from the illumination heat dissipation fin assembly (221), and the air flow is blown out of the projector.

6. The projector as claimed in claim 5, wherein the auxiliary cooling module (23) comprises an illumination cooling heat sink (231) and a third heat pipe (232), the illumination cooling heat sink (231) is disposed at the bottom of the illumination portion (21), one end of the third heat pipe (232) is connected to the illumination cooling heat sink (231), and the other end is drawn to the top of the imaging portion (11) to be connected to the first imaging cooling fin module (121) for auxiliary cooling to the outside.

7. The optical projection engine according to claim 5 or 6, wherein the illumination unit (21) further comprises a sound cavity (211), and the sound cavity (211) is located below the imaging unit (11), opposite to the illumination main heat dissipation assembly (22), and located on the side of the air inlet with the lens optical axis as the center.