WO2022068647A1

WO2022068647A1 - Projection device and projection system

Info

Publication number: WO2022068647A1
Application number: PCT/CN2021/119592
Authority: WO
Inventors: 崔雷; 邢哲; 戴洁
Original assignee: 青岛海信激光显示股份有限公司
Priority date: 2020-09-30
Filing date: 2021-09-22
Publication date: 2022-04-07
Also published as: CN112180658A; CN112180658B

Abstract

A projection device and a projection system. The projection device (100) comprises a light source (2), a heat radiator (4), a heat conducting member (5), a first heat pipe (61), and a second heat pipe (62). The heat conducting member (5) comprises a heat conducting portion (53) which contacts the light source (2). A first end of the first heat pipe (61) and a first end of the second heat pipe (62) are both connected to the heat radiator (4), and a second end of the first heat pipe (61) and a second end of the second heat pipe (62) are respectively connected to the heat conducting member (5) from two opposite sides of the heat conducting portion (53).

Description

Projection equipment and projection system

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of Chinese Patent Application No. 202011058307.9 filed on September 30, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the field of projection technology, and in particular, to a projection device and a projection system.

Background technique

Laser projection equipment is a kind of projection equipment that uses a laser as a light source. During operation, the laser beam generated by the laser is projected onto the screen through the action of the optical system, the optical machine and the lens to form a projection screen. The laser will generate a large amount of heat energy during operation. In order to ensure the normal operation of the laser, a cooling device is usually installed inside the projection equipment to dissipate heat from the laser, thereby ensuring the luminous efficiency, reliability and life of the laser.

SUMMARY OF THE INVENTION

In one aspect, a projection device is provided, comprising: a light source; an optomechanical connected to the light source; a lens connected to the optomechanical; a heat sink; a first heat pipe; a second a heat pipe; a heat-conducting member, the heat-conducting member includes a heat-conducting portion, and the heat-conducting portion is in contact with the light source; wherein, the first end of the first heat pipe and the second end of the second heat pipe are both connected to the heat dissipation The second end of the first heat pipe and the second end of the second heat pipe are respectively connected to the heat conducting member from opposite sides of the heat conducting part.

In another aspect, a projection system is provided, comprising a projection screen and the projection device described in the first aspect, wherein a lens of the projection device is used to project a projection beam onto the projection screen to form a projection picture.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a projection system in some embodiments of the present application;

FIG. 2 is a schematic structural diagram of the projection device in FIG. 1 after removing the upper casing;

FIG. 3 is a layout diagram of main components in the projection apparatus in some embodiments of the present application;

Figure 4 is a top view of the components shown in Figure 3;

Figure 5 is an exploded view of the components shown in Figure 3;

6 is a schematic diagram of the connection between the radiator, the first heat pipe and the light source in FIG. 3;

7 is a schematic diagram of the connection structure between the heat conducting member and the light source housing under a first viewing angle (viewing angle viewed from one side of the light source);

8 is a schematic diagram of the connection structure between the heat conducting member and the light source housing under a second viewing angle (viewing angle viewed from the side of the heat sink);

9 is a schematic diagram of the connection structure between the heat conducting member and the light source housing from a third viewing angle (viewing angle viewed from one side of the cooling fan);

FIG. 10 is an exploded view of the cooling fan, the radiator, the heat conducting member and the first heat pipe in FIG. 9;

11 is a schematic diagram of the structure of a heat conducting member, a heat sink, a cooling fan and a light source housing in other embodiments of the present application;

FIG. 12 is a schematic structural diagram of the components in FIG. 11 under a viewing angle;

FIG. 13 is a schematic structural diagram of the components in FIG. 11 under another viewing angle;

Figure 14 is an exploded view of the components in Figure 11;

FIG. 15 is a schematic diagram of the arrangement of the first heat pipes in FIG. 12;

FIG. 16 is a schematic diagram of the arrangement of the second heat pipes in FIG. 12;

Fig. 17 is a schematic diagram of the first fastener connecting the light source and the heat conducting member in other embodiments of the present application (viewed from the light source side);

Fig. 18 is the E-E cross-sectional view of Fig. 17;

FIG. 19 is a schematic diagram of the second fastener connecting the heat-conducting member and the light source in other embodiments of the present application (viewed from the side of the heat-conducting member);

FIG. 20 is a cross-sectional view taken along line F-F of FIG. 19 .

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present application.

The terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of this application, unless stated otherwise, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connected, or integrally connected; the term "connected" can be directly connected, or indirectly connected through an intermediate medium, and can also be internal communication between two elements; for those of ordinary skill in the art, the above terms can be understood in specific situations specific meaning in this application.

A projection device in the related art uses air-cooled heat dissipation technology to dissipate heat from a light source. The projection device includes a light source, a heat-conducting member, a radiator, a cooling fan, and a heat pipe. The heat-conducting member is in contact with the light source. One side (that is, the connection side) of the component is connected with the heat-conducting component, and the other end is connected with the heat sink. When working, the heat-conducting element absorbs heat from the light source, uses the latent heat of phase change of the heat pipe to conduct the heat of the light source into a radiator, and the cooling fan sends air to the radiator to force the radiator to dissipate heat by convection, so that the light source can be dissipated by forced convection. The heat of the casing dissipates quickly.

For projection equipment using air-cooled heat dissipation technology, along the flow direction of the heat transfer medium in the heat pipe, the heat absorption capacity of the evaporating end of the heat pipe (that is, the part of the heat pipe that is in contact with the heat pipe) gradually decreases, that is, the evaporating end of the heat pipe. The heat-absorbing ability is stronger at the position close to the connecting side surface of the heat-conducting member, and the heat-absorbing ability is weak at the position far from the connecting side surface of the heat-conducting member, so that the temperature of the heat-conducting member near the connecting side surface of the heat-conducting member is lower. The temperature is higher at a position away from the connecting side surface of the heat-conducting member, so that there is a certain difference in the temperature distribution on the heat-conducting member, which in turn makes the temperature distribution on the light source uneven and the difference is large.

In the embodiment of the present application, the first heat pipe and the second heat pipe are respectively connected to the heat-conducting member from opposite sides of the heat-conducting part (the part where the heat-conducting member is in contact with the light source), so that the first heat pipe and the second heat pipe are close to the two sides of the heat-conducting member. The heat absorption capabilities at the positions of the opposite side surfaces can be mutually compensated, thereby reducing the temperature difference on the heat conducting member, and thus reducing the temperature difference on the light source.

FIG. 1 is a schematic structural diagram of a projection system in some embodiments of the present application. As shown in FIG. 1 , the projection system includes a projection device 100 and a projection screen 200 . It is installed on a flat carrier to ensure the flatness of the projection screen 200 .

The projection device 100 is placed on a flat placement surface. The projection device 100 includes a casing 1. The casing 1 includes a lower casing 12 and an upper casing 11. The upper casing 11 and the lower casing 12 are detachably connected by screws. The lower shell 12 is provided with support feet 13 , the bottoms of which can be made of rubber material to increase the friction between the support feet 13 and the placing surface; the top of the upper shell 11 is provided with a drop port 14 . During operation, the projection device 100 projects the projection beam from the injection port 14 onto the projection screen 200 to form a projection image for the user to watch.

FIG. 2 is a schematic structural diagram of the projection apparatus 100 in FIG. 1 after removing the upper casing 11 , FIG. 3 is a layout diagram of main components in the projection apparatus 100 , FIG. 4 is a top view of the components shown in FIG. 3 , and FIG. 5 is a Exploded view of the components shown in Figure 3.

As shown in FIGS. 2 to 5 , the projection apparatus 100 further includes a light source 2 , an optical path adjusting device 31 , an optical machine 32 and a lens 33 , which are arranged on the lower casing 12 and are connected in sequence. 32 and the lens 33 are arranged in a U shape. Specifically, the light source 2 and the optical path adjusting device 31 are arranged along the width direction of the casing 1 (the Y direction in FIG. 2 ), and the optical path adjusting device 31 and the optical machine 32 are arranged along the length direction of the casing 1 (the X direction in FIG. 2 ). ) arrangement, the optical machine 32 and the lens 33 are arranged along the width direction of the casing 1 , and the light source 2 and the lens 33 are arranged spaced apart along the length direction of the casing 1 .

The light source 2 , the optical path adjusting device 31 , the optical machine 32 and the lens 33 each have a housing to support and seal the optical components inside.

As shown in FIG. 3 and FIG. 5 , the light source 2 is a pure three-color laser light source. In a possible implementation, the light source 2 emits red laser light, blue laser light and green laser light. The housing of the optical path adjusting device 31 is provided with a lens assembly to shape the optical path of the laser light emitted by the laser.

The optical path adjusting device 31 has an optical outlet, and the surface where the optical outlet is located is the connection surface with the optomechanical 32 , and the light source 2 provides illumination beams for the optomechanical 32 through the connection. The optical machine 32 has a light entrance 321 and a light output port 322 according to the design of the light path of the light in the light machine 32 . Wherein, the light entrance 321 and the light exit 322 of the optical machine 32 are located on two sides of the housing of the optical machine 32 in a vertical relationship, and the vertical here is the vertical in the spatial position relationship.

As shown in FIG. 2 , the projection device 100 further includes a display driving unit 34 , a cooling fan 35 , and an audio 36 disposed on the lower casing 12 . The lens 33 , the display driving unit 34 , and the cooling fan 35 are along the length direction of the casing 1 . Arrangement, the display driving unit 34 is arranged between the lens 33 and the cooling fan 35, and the cooling fan 35 is arranged at one edge of the lower casing 12 along the length direction of the casing 1, that is, the right edge in FIG. 2 . The speaker 36 is disposed at one edge of the lower casing 12 along the width direction of the casing 1 , and is disposed close to the lens 33 .

Wherein, the above-mentioned display driving unit 34 includes a power supply board, a control board, a display board and the like arranged in layers.

As shown in FIGS. 2 and 3 , the projection apparatus 100 further includes a radiator 4 , a heat conducting member 5 , a first heat pipe 61 and a cooling fan 7 . The radiator 4 and the light source 2 are arranged along the length direction of the casing 1 , and the radiator 4 It is located on the side of the light source 2 away from the lens 33 .

The heat sink 4 includes a plate-shaped fin assembly 40. Along the first direction Y, the fin assembly 40 includes a first assembly end face 41 and a second assembly end face 42 that are opposite to each other. The first assembly end face 41 is provided with a first assembly end face 41. Radiator jack 411 .

Certainly, the fin assembly 40 may be in other shapes besides the plate shape, for example, the cross section is circular, polygonal, etc., which is not specifically limited herein.

FIG. 6 is a schematic diagram of the connection between the heat sink 4, the first heat pipe 61 and the light source 2 in FIG. 3, and FIG. 7 is the connection between the heat-conducting member 5 and the light source 2 under the first viewing angle (viewing angle from one side of the light source 2). A schematic diagram of the connection structure, FIG. 8 is a schematic diagram of the connection structure between the thermally conductive member 5 and the light source 2 from a second viewing angle (viewing angle from the side of the heat sink 4 ).

As shown in FIGS. 6 to 8 , the heat-conducting member 5 and the light source 2 are arranged along the second direction X, and the heat-conducting member 5 is located between the light source 2 and the fin assembly 40 . The length direction of is parallel to the first direction Y. Along the length direction of the heat-conducting member 5, the heat-conducting member 5 includes a first heat-conducting member end face 51 and a second heat-conducting member end face 52 arranged opposite to each other, and the first heat-conducting member end face 51 is located at the end of the heat-conducting member 5 close to the first component end face 41, The end surface 51 of the first heat conducting member is provided with a first heat conducting member insertion hole 511 .

As shown in FIGS. 7 and 8 , the first end (condensing end) of the first heat pipe 61 is inserted into the first radiator insertion hole 411 , and the second end (evaporation end) is inserted into the first heat conducting member insertion hole 511 . Since the above-mentioned first heat-conducting member insertion hole 511 is located on the side of the heat-conducting member 5 close to the end face 41 of the first component, the first heat pipe 51 can be simultaneously inserted into the first heat sink insertion hole 411 , the first heat pipe 51 from one side of the heat-conducting member 5 A heat-conducting member is inserted into the insertion hole 511 , thereby facilitating the installation between the first heat pipe 61 , the fin assembly 40 and the heat-conducting member 5 . At the same time, the first heat pipe 61 is inserted into the first heat-conducting member insertion hole 411 and the first heat sink insertion hole 411, so that the side wall of the first heat pipe 61 can be fully contacted with the heat-conducting member 4 and the fin assembly 40, and the first heat pipe 61 is improved. The heat exchange efficiency between the heat conducting member 5 and the fin assembly 40 is favorable for the first heat pipe 61 to transfer the heat on the light source 2 to the fin assembly 40 in time and dissipate it.

Of course, the connection between the first heat pipe 61 and the heat-conducting member 5 is not limited to the above-mentioned plug connection, and a fixing groove extending along the first direction Y can also be provided on the side of the heat-conducting member 5 close to the fin assembly 40 . 5 extends into the fixing slot from the side of the heat conducting member 5 close to the end face 41 of the first component, and is in contact with the groove wall of the fixing groove, so that the first heat pipe 5 can also transfer the heat from the light source 2 absorbed by the heat conducting member 5 to the fin assembly.

As shown in FIG. 8 , the light source 2 includes a light source housing 21 and a laser 22 , a part of the laser 22 is located in the light source housing 21 , and the other part extends out of the light source housing 21 . The heat-conducting member 5 includes a heat-conducting portion 53, and the heat-conducting portion 53 is located between the end surface 51 of the first heat-conducting member and the end surface 52 of the second heat-conducting member. The portion 53 is in surface contact with the part of the laser 22 extending out of the light source housing 21 , and the heat conducting member 5 is connected to the light source 2 through the connecting structure 8 . Compared with other contact methods, such as point contact and line contact, surface contact can improve the heat transfer efficiency between the thermally conductive portion 53 and the light source 2 , thereby improving the heat dissipation effect of the light source 2 .

Of course, in addition to the rectangular block shape, the above-mentioned heat conducting member 5 can also be in other shapes, such as a semi-cylindrical shape (that is, a semicircle in cross section), etc., which can be determined according to the actual situation; In addition to the side close to the light source 2, it can also be a heat conducting block located on the side of the heat conducting member 5 close to the light source 2, the heat conducting block is in contact with the light source 2, or embedded in the light source housing 21 of the light source 2, which can be determined according to the actual situation.

As shown in FIG. 8 , along the second direction X, the cooling fan 7 is located on the side of the fin assembly 40 away from the light source 2 and is opposite to the fin assembly 40 . In this way, the wind generated by the cooling fan 7 can pass through the fin assembly 40 and dissipate heat.

Of course, the relationship between the cooling fan 7 and the fin assembly 40 is not limited to the arrangement shown in FIG. 8, and other arrangements that can make the fin assembly 40 located on the flow path of the wind generated by the cooling fan 7 are acceptable. An air duct is provided between the cooling fan 7 and the fin assembly 40 .

Wherein, the above-mentioned first direction Y is consistent with the width direction of the casing 1 , is consistent with the arrangement direction of the first component end face 41 and the second component end face 42 , and is consistent with the first heat conducting member end face 51 and the second heat conducting member end face 52 . The arrangement direction is consistent; the second direction X is consistent with the flow direction of the heat exchange airflow (wind generated by the cooling fan 7), and is consistent with the arrangement direction of the fin assembly 40 and the light source 2; the first direction Y, the second direction X and the The height directions (H direction in FIG. 3 ) of the fin assemblies 40 are perpendicular to each other.

As shown in FIG. 7 and FIG. 8 , the temperature of the laser 22 will increase during operation. Since the heat-conducting member 5 and the laser 22 are in contact, the heat-conducting member 5 can absorb the heat on the laser 22 and transfer it to the first heat pipe 61. The part of the first heat pipe 61 in contact with the heat-conducting member 5 is the evaporation end of the first heat pipe 61. The heat transfer medium inside the evaporation end of the first heat pipe 61 is heated to produce a phase change, from liquid to gas, and the gas flows along the first heat pipe 61. The heat pipe 61 enters the interior of the fin assembly 40 of the radiator 4, and the part of the first heat pipe 61 in contact with the radiator 4 is the condensing end of the first heat pipe 61, and the condensing end of the first heat pipe 61 transfers heat to the fin assembly 40; The cooling fan 7 supplies air to the fin assembly 40, and can perform forced convection heat dissipation on the fin assembly 40 to dissipate heat quickly. At this time, the temperature of the condensing end of the first heat pipe 61 is reduced, and the heat transfer medium in the condensing end is heated. The temperature decreases from gas to liquid, and flows back to the evaporation end of the first heat pipe 61 along the inner wall of the first heat pipe 61, so that the heat transfer medium circulates between the evaporation end and the condensation end of the first heat pipe 61, and the laser 22 The heat is transferred to the fin assembly 40 of the heat sink 4, and then dissipated by the fin assembly 40, thereby ensuring the normal operation of the laser 22.

As shown in FIG. 8 , the heat-conducting member 5 is disposed between the fin assembly 40 and the light source 2, so that the heat-conducting member 5 can be located on the circulation path of the wind generated by the cooling fan 7, so that the wind generated by the cooling fan 7 can conduct heat. Therefore, the heat dissipation effect of the heat conduction member 5 can be improved, and the heat dissipation efficiency of the heat conduction member 5 to the light source housing 21 can be improved.

The above-mentioned radiator 4 adopts an air-cooling method to dissipate heat, so that fewer heat-dissipating components are required, and the heat-dissipating fan 7 can be provided to dissipate heat, with low cost and strong adaptability.

Of course, the radiator 4 can dissipate heat in addition to air cooling, and can also dissipate liquid cooling. Specifically, the radiator 4 is a shell-and-tube heat exchanger, and the first end of the first heat pipe 61 is inserted into the in the shell of the shell and tube heat exchanger. A low temperature liquid, such as cold water, is provided in the shell of the shell and tube heat exchanger to dissipate heat from the condensing section of the heat pipe (the part of the heat pipe inserted into the shell of the shell and tube heat exchanger).

In some embodiments, as shown in FIGS. 6 to 9 , FIG. 9 is a schematic diagram of the connection structure 8 between the heat conducting member 5 and the light source housing 21 from a third viewing angle (viewing angle from one side of the cooling fan 7 ). . The connection structure 8 includes a first threaded hole 81 formed on the heat-conducting member 5, a first through hole 82 formed on the light source housing 21, and a first fastener 83. The first fastener 83 is a threaded fastener. And it includes a first head 831 (that is, a first clamping part) and a first screw 832. The first screw 832 passes through the first through hole 82 and is matched with the first threaded hole 81, and the first head 831 is connected to the first screw 832. The edges of a through hole 82 are snapped together to prevent the first fastener 83 from moving in a direction close to the heat conducting member 5 .

The connection structure 8 also includes a second through hole 84 formed on the heat-conducting member 5, a second threaded hole 85 formed on the light source housing 21, and a second fastener 86. The second fastener 86 is threadedly fastened. pieces. And it includes a second head 861 (that is, the second clamping part) and a second screw 862. The second screw 862 passes through the second through hole 84 and is matched with the second threaded hole 85, and the second head 862 is connected to the second screw 862. The edges of the two through holes 84 are snapped together to prevent the second fastener 86 from moving in a direction close to the light source 2 .

Among them, as shown in FIG. 7 , the side wall of the light source housing 21 in contact with the heat conducting member 5 protrudes outward to form the mounting flange 23 , and the first through hole 82 is provided on the mounting flange 23 to facilitate the first fastening Installation of parts 83. The first fastener 83 and the second fastener 86 may be screws or bolts, which are not specifically limited herein.

In some embodiments, the first fastener 83 and the second fastener 86 are non-threaded fasteners, as shown in FIGS. 17 and 18 , and FIG. 17 shows the first fastener 83 connecting the light source 2 and the heat conduction The schematic diagram of the component 5 (viewed from the side of the light source 2), FIG. 18 is a cross-sectional view of FIG. 17 E-E, the connection structure 8 includes a first through hole 82 opened on the light source housing 21, and a third through hole 82 opened on the thermally conductive component 5. The hole 87 and the first fastener 83, the first fastener 83 includes a first engaging portion 831 and a first claw 833, the first through hole 82 and the third through hole 87 are long holes to ensure the first A claw 833 can pass through. After the first claw 833 passes through the first through hole 82 and the third through hole 87, it is rotated by a certain angle to make the first claw 833 engage with the edge of the third through hole 87. And the first engaging portion 831 is engaged with the edge of the first through hole 82 to prevent the first fastener 83 from moving in a direction close to the heat conducting member 5 .

FIG. 19 is a schematic diagram of the second fastener 86 connecting the heat-conducting member 5 and the light source 2 (viewed from the side of the heat-conducting member 5 ), and FIG. 20 is a cross-sectional view taken along the line F-F of FIG. 19 . As shown in FIG. 19 and FIG. 20 , the connection structure 8 further includes a second through hole 84 formed on the heat-conducting member 5 , a fourth through hole 88 formed on the light source housing 21 , and a second fastener 86 . The two fasteners 86 include a second engaging portion 861 and a second claw 863. The second through hole 84 and the fourth through hole 88 are long holes to ensure that the second claw 863 can pass through, and the second claw can pass through. After the 863 passes through the second through hole 84 and the fourth through hole 88, it is rotated by a certain angle so that the second claw 863 is engaged with the edge of the fourth through hole 88, and the second engaging portion 861 is connected with the second through hole. The edges of the 84 are snapped together to prevent the second fastener 86 from moving toward the direction close to the light source 2 .

In order to enable the first fastener 83 to connect the heat conducting member 5 and the light source 2 more firmly, as shown in FIG. At the hole 87 , the first clamping claw 833 passes through the third through hole 87 and the first elastic washer 891 and then engages with the first elastic washer 891 . Since the first elastic washer 891 has a certain amount of compression, when the first claw 833 is engaged with the first elastic washer 891, the first elastic washer 891 can absorb a certain tolerance through compression, so that the first tightening The member 83 can make the connection between the heat-conducting member 5 and the light source housing 21 more firmly, and avoid loosening between the heat-conducting member 5 and the light source housing 21 .

In order to enable the second fastener 86 to connect the heat-conducting member 5 and the light source 2 more firmly, as shown in FIG. 20 , the connecting structure 8 further includes a second elastic gasket 892 , which is arranged on the fourth channel. At the hole 88 , the second claw 863 passes through the fourth through hole 88 and the second elastic washer 892 and then engages with the second elastic washer 892 . Since the second elastic washer 892 has a certain amount of compression, when the second claw 863 is engaged with the second elastic washer 892, the second elastic washer 892 can absorb a certain tolerance through compression, so that the second tightening The member 86 can connect the heat-conducting member 5 and the light source housing 21 more firmly, so as to avoid loosening between the heat-conducting member 5 and the light source housing 21 .

The above-mentioned fasteners connected between the heat conducting member 5 and the light source housing 21 are divided into two categories, one is the first fastener 83, the first fastener 83 is installed from one side of the light source housing 21, the first After the fasteners 83 pass through the first through holes 82 on the light source housing 21, they are connected to the heat-conducting member 5. Therefore, the first fasteners 83 exert a tensile force on the heat-conducting member 5; Firmware 86, the second fastener 86 is installed from one side of the heat sink 4, and the second fastener 86 is connected to the light source housing 21 after passing through the second through hole 84 on the heat-conducting member 5. Therefore, the first The two fasteners 86 exert pressure on the heat-conducting member 5 . The tensile force generated by the first fastener 83 and the pressure generated by the second fastener 86 act on the heat-conducting member 5, so that the heat-conducting member 5 is more firmly fixed with the light source housing 21 to ensure that the heat-conducting member 5 is in close contact with the laser 22. , so as to ensure that the heat-conducting member 5 can smoothly conduct the heat on the laser 22 .

Compared with the solution in which the second fastener 86 is used to connect the heat-conducting member 5 and the light source housing 21, in the solution in which the first fastener 83 and the second fastener 86 are used to connect the heat-conducting member 5 and the light source housing 21, Since the first fastener 83 can be installed from one side of the light source housing 21 , when the space between the radiator 4 and the heat-conducting member 5 is small, there is no need to create an avoidance structure on the radiator 4 to sacrifice a part of the volume for avoidance According to the installation path of the first fastener 83 , the radiator 4 can maintain a relatively large volume, so that the heat dissipation effect of the radiator 4 can be improved.

In addition, in the embodiment in which the first fastener 83 and the second fastener 86 are threaded fasteners, since the second fastener 86 can be installed from one side of the heat sink 4, the light source housing 21 and the heat conduction The second threaded hole 85 on the opposite side of the component 5 can be connected to the second fastener 86, and there is no need to additionally provide installation structures such as the installation flange 23 and installation operation space, which is beneficial to reduce the occupation of the light source housing 21. space, which satisfies the design requirement of minimizing the light source housing 21.

In some embodiments, in order to balance the force on the heat conducting member 5 after the heat conducting member 5 and the light source housing 21 are assembled, as shown in FIG. at opposite ends. In this way, after the installation of the first fastener 83 and the second fastener 86 is completed, the stress points of the heat-conducting member 5 are located at opposite ends of the heat-conducting member 5, so that the force of the heat-conducting member 5 can be kept balanced, and further The contact between the heat-conducting member 5 and the light source housing 21 is made closer, so as to facilitate heat conduction between the light source housing 21 and the heat-conducting member 5 .

Wherein, the first threaded hole 81 and the second through hole 84 may be respectively disposed at the upper and lower ends of the heat-conducting member 5 (as shown in FIG. 8 ), or may be respectively disposed at both ends of the heat-conducting member 5 along the length direction. It depends on the actual situation.

In some embodiments, in order to facilitate the installation of the second fastener 86 , as shown in FIG. 8 , on the heat-conducting member 5 , the end where the second through hole 84 is located (the lower end of the heat-conducting member 5 in the figure) is connected to the heat sink The gap between 4 is larger than the gap between the end where the first threaded hole 81 is located (the upper end of the heat conducting member 5 in the figure) and the heat sink 4 . By setting the gap between the end where the second through hole 84 is located and the heat sink 4 to be larger, it is not easy to interfere with the heat sink 4 when the second fastener 86 is installed, thereby facilitating the second tightening Installation of firmware 86.

In some embodiments, in order to facilitate the installation of the second fastener 86 , as shown in FIGS. 8 and 9 , the second through hole 84 is located outside the first projection area 54 , and the first projection area 54 is the heat sink 4 The projection area formed on the heat-conducting member 5 along the hole depth direction of the second through hole 84 (that is, the area above the dotted line m in the heat-conducting member 5 in the figure). Through the above arrangement, the hole axis of the second through hole 84 does not intersect with the heat sink 4, and the heat sink 4 is located outside the installation path of the second fastener 86, thus avoiding the installation of the heat sink 4 and the second fastener 86 If the path interferes, there is no need to provide an avoidance structure on the radiator 4 to avoid the second fastener 86 , which satisfies the design requirement of maximizing the volume of the radiator 4 , thereby further improving the heat dissipation effect of the radiator 4 .

In some embodiments, as shown in FIGS. 2 and 8 , the heat conducting member 5 is inclined relative to the bottom surface of the lower casing 12 , so that the hole axis of the second through hole 84 is inclined relative to the bottom surface of the lower casing 12 , thereby making The second through holes 84 are located outside the first projection area 54 .

In some embodiments, as shown in FIGS. 7 and 8 , the numbers of the first through holes 82 , the first threaded holes 81 , and the first fasteners 83 are all multiple, and the multiple first through holes 82 and the multiple The first threaded holes 81 are arranged along the first direction Y, and each of the first fasteners 83 passes through a first through hole 82 to match with the corresponding first threaded hole 81 . The number of the second through holes 84 , the second threaded holes 85 , and the second fasteners 86 are all multiple, and the multiple second through holes 84 and the multiple second threaded holes 85 are all arranged along the first direction Y, and each Each of the second fasteners 86 passes through a second through hole 84 and is matched with the corresponding second threaded hole 85 .

The heat-conducting member 5 is connected to the light source housing 21 through a plurality of first fasteners 83 and a plurality of second fasteners 86 , which can make the connection between the heat-conducting member 5 and the light source housing 21 firmer, so that the heat conduction can be improved. The contact between the component 5 and the light source housing 21 is tighter, so as to facilitate heat transfer between the light source housing 21 and the heat conducting component 5 .

In some embodiments, as shown in FIGS. 7 and 8 , the first through hole 82 , the first threaded hole 81 , the first fastener 83 , the second through hole 84 , the second threaded hole 85 , the second fastening The number of pieces 86 may be three, but not limited to this, and may also be two, four, etc., which may be determined according to actual needs.

In some embodiments, as shown in FIGS. 9 and 10 , FIG. 10 is an exploded view of the cooling fan 7 , the radiator 4 , the heat conducting member 5 and the first heat pipe 61 in FIG. 9 . The projection device 100 further includes a connector 9, the connector 9 includes a bottom plate 91 and a first sub-connector 92, the heat sink 4 is fixed on the bottom plate 91; along the second direction X, the first sub-connector 92 is disposed on the bottom plate 91 away from the heat conduction At one side edge of the member 5 , the cooling fan 7 is fixed on the first sub-connecting member 92 . By arranging the connecting piece 9, the cooling fan 7 and the radiator 4 are fixed together, thus ensuring the relative fixation of the position between the cooling fan 7 and the radiator 4. At the same time, the cooling fan 7 and the heat-conducting member 5 are arranged on both sides of the fin assembly 40 along the thickness direction, which can make the layout of the cooling fan 7, the radiator 4 and the heat-conducting member 5 more compact, which is beneficial to reduce the impact on the projection equipment. 100 occupancy of the space inside the casing 1 .

In some embodiments, as shown in FIGS. 8 and 10 , the connecting member 9 further includes a second sub-connecting member 93 disposed on the bottom plate 91 , and along the first direction Y, the second sub-connecting member 93 is located away from the thermally conductive member 5 . One side of the end surface 42 of the first component is fixedly connected to the heat conducting member 5 , specifically, the second sub-connecting member 93 can be fixedly connected to the end surface 52 of the second heat conducting member. Since the first heat pipe 61 is connected to the heat-conducting member 5 from the side of the heat-conducting member 5 along the first direction Y, before the heat-conducting member 5 is assembled with the light source 2, the force of the heat-conducting member 5 is unbalanced along the first direction Y, and the first The end where the end faces 52 of the two heat-conducting members are located is easy to shake, and the second sub-connecting member 93 is arranged to be fixedly connected to the end of the heat-conducting member 5 away from the end face 41 of the first component, so that the heat-conducting member 5 can be kept in a balanced force along the first direction Y. The end face 52 of the second heat-conducting member is prevented from shaking, which not only prevents the first heat pipe 61 from being deformed, but also makes the heat-conducting member 5 more stable to facilitate subsequent assembly of the heat-conducting member 5 and the light source housing 21 .

In some embodiments, in order to better dissipate heat to the fin assemblies 40 of the heat sink 4, as shown in FIG. 9 and FIG. 10 , the number of cooling fans 7 is two, and the two cooling fans 7 are along the first direction Y are arranged and fixed on the first sub-connector 92 . By arranging two cooling fans 7 , the contact area between the wind and the fin assembly 40 of the heat sink 4 is increased, so that the heat dissipation effect on the fin assembly 40 can be improved.

In some embodiments, as shown in FIG. 8 , FIG. 9 and FIG. 10 , the number of the first heat sink insertion holes 411 is seven, the seven first heat sink insertion holes 411 are arranged in two rows, and the two rows of first heat dissipation holes 411 are arranged in two rows. The radiator insertion holes 411 are arranged along the second direction X, and the first row includes four first radiator insertion holes 411 arranged along the height direction of the fin assembly 40 (the H direction in FIG. 8 ). The second row There are three first radiator insertion holes 411 arranged along the height direction of the fin assembly 40 .

The number of the first heat-conducting member insertion holes 511 is seven, and the seven first heat-conducting member insertion holes 511 are arranged in two rows. There are four first heat-conducting member insertion holes 511 arranged along the width direction of the heat-conducting member 5 (M direction in FIG. 8 and FIG. 10 ), and the second row includes three The first heat conducting member insertion hole 511 .

The number of the first heat pipes 61 is seven, the first end of each first heat pipe 61 is inserted into the corresponding first heat sink insertion hole 411 , and the second end is inserted into the corresponding first heat conduction member insertion hole 511 .

By setting a plurality of first heat pipes 61 to connect the heat conducting member 5 and the fin assembly 40 , the heat transfer efficiency between the heat conducting member 5 and the fin assembly 40 can be increased, thereby improving the heat dissipation effect of the light source housing 21 .

Of course, the number of the first radiator sockets 411, the first heat-conducting member sockets 511 and the first heat pipes 61 is not limited to seven, and can also be set to six, eight, etc., which are not specifically limited here; The radiator jacks 411 are not limited to the above-mentioned arrangement, which can be determined according to the number of the first radiator jacks 411; It depends on the number of holes 511.

As shown in FIGS. 9 and 10 , the first heat pipe 61 is inserted from one end of the fin assembly 40 , and in the evaporation section of the first heat pipe 61 (the part inserted into the first heat conducting member insertion hole 511 ), the heat transfer medium is guided During the inflow process of the heat element 5, the temperature of the heat of the heat conduction element 5 is gradually absorbed, so the temperature of the evaporation section of the first heat pipe 61 along the insertion direction is gradually increased, and the heat absorption capacity is gradually weakened. Due to the difference in the heat absorption capacity of each position of the evaporation section of the first heat pipe 61, the temperature difference between the position close to the end face 51 of the first heat conductor 5 and the position far from the end face 51 of the first heat conductor is relatively large, thereby making The temperature of each part of the light source housing 21 along the insertion direction of the first heat pipe 61 is greatly different.

In order to reduce the temperature difference of the light source 2 in the first direction Y, in some embodiments, FIG. 11 is a schematic diagram of the structure of the heat conducting member 5 , the heat sink 4 , the cooling fan 7 and the light source housing 21 in other embodiments of the

present application

12 and 13 are schematic structural diagrams of the components in FIG. 11 from different viewing angles, and FIG. 14 is an exploded view of the components in FIG. 11 . As shown in FIGS. 11 to 14 , on the basis of the structure shown in FIGS. 3 to 10 , a second radiator insertion hole 421 is further opened on the end face 42 of the second assembly of the fin assembly 40 , and the end face of the second heat conducting member 52 is provided with a second heat-conducting member insertion hole 521 (as shown in FIG. 13 ); the projection apparatus 100 further includes a second heat pipe 62 , and the first end (condensing end) of the second heat pipe 62 is inserted into the second radiator insertion hole 421 , the second end (evaporating end) is inserted into the second heat conducting member insertion hole 521 .

Of course, in addition to air cooling, the radiator 4 can also use liquid cooling to dissipate heat. Specifically, the radiator 4 is a shell-and-tube heat exchanger, the first heat pipe 61 and the second heat pipe 62 The first end of the tube is inserted into the shell of the shell and tube heat exchanger.

In some embodiments, since the first heat pipe 61 and the second heat pipe 62 are respectively inserted into the heat conducting member 5 from opposite ends of the heat conducting member 5 , the heat conducting medium in the evaporation section of the first heat pipe 61 and the second heat pipe 62 is It flows from the two ends of the heat-conducting member 5 to the middle part. According to the distribution characteristics of the heat absorption capacity at different positions on the evaporation section of the first heat pipe 61 and the second heat pipe 62, that is, the evaporation section of the first heat pipe 61 is far away from the first heat pipe 61. The heat-absorbing capacity of the end surface 51 of the heat-conducting member is gradually weakened, and the heat-absorbing capacity of the evaporation section of the second heat pipe 62 along the distance away from the end surface 51 of the first heat-conducting member is gradually reduced and enhanced. Therefore, the temperature difference of the heat-conducting member 5 in the first direction Y can be reduced, so as to reduce the temperature difference of the light source 2 in the first direction Y, thereby making the temperature distribution on the light source 2 more stable. At the same time, the first heat pipe 61 and the second heat pipe 62 are respectively inserted into the heat conducting member 5 from the opposite ends of the heat conducting member 5 , so that the first heat pipe 61 and the second heat pipe 62 are equivalent to the fixing frame for the opposite ends of the heat conducting member 5 . Both ends are connected to the radiator 4 to keep the force balance of the heat-conducting member 5 , so the heat-radiator 4 and the heat-conducting member 5 do not need to be additionally provided with a fixed connecting member 9 , thereby simplifying the installation structure of the heat-conducting member 5 .

The connection between the first heat pipe 61 , the second heat pipe 62 and the heat-conducting member 5 is not limited to the connection method of the above-mentioned sockets. The side is also connected to the heat-conducting member 5. For example, a first groove and a second groove with the same extension direction can be provided on the heat-conducting member 5. The first heat pipe 61 extends from one side of the heat-conducting portion 53 to the first groove. In the groove, the second heat pipe 62 extends into the second groove from the other opposite side of the heat conducting part 53 , so that in the extending direction of the first groove, the second heat pipe 62 can absorb heat from the first heat pipe 61 Therefore, the temperature difference of the heat-conducting member 5 in the extending direction of the first groove can be reduced, so as to reduce the temperature difference of the light source 2 in the extending direction of the first groove, thereby making the temperature distribution on the light source 2 more stable. evenly.

In some embodiments, as shown in FIGS. 12 , 13 and 14 , the thermally conductive member 5 is located between the fin assembly 40 and the light source 2 , and along the first direction Y, the end surface 51 of the first thermally conductive member is located close to the thermally conductive member 5 . One end of the end surface 41 of the first assembly, and the end surface 52 of the second heat conducting member is located at one end of the heat conducting member 5 close to the end face 42 of the second assembly. By arranging the first heat pipe 61 in the above manner, the first heat pipe 61 can be simultaneously inserted into the first heat pipe insertion hole 511 and the first heat sink insertion hole 411 from one side of the heat conduction member 5 , and the second heat pipe 62 can be inserted from the opposite side of the heat conduction member 5 The sides are simultaneously inserted into the second heat-conducting member insertion hole 521 and the second heat sink insertion hole 421 , thereby facilitating the installation of the first heat pipe 61 and the second heat pipe 62 .

In some embodiments, as shown in FIG. 11 , the light source 2 further includes a first laser 22a and a second laser 22b disposed on the light source housing 21 and arranged along the first direction Y, and a part of the first laser 22a is located in the light source In the housing 21, the other part protrudes out of the light source housing 21 and is in contact with the heat conducting part 53; a part of the second laser 22b is located in the light source housing 21, and the other part protrudes out of the light source housing 21, and is in contact with the heat conducting part 53; 53 contacts. The first laser 22a is disposed close to the end face 51 of the first heat conducting member, and the second laser 22b is disposed close to the end face 52 of the second heat conducting member.

In some embodiments, as shown in FIG. 11 and FIG. 12 , since the first heat pipe 61 has a relatively strong heat absorption capability at a position close to the end face 51 of the first heat conducting member, by placing the first laser 22a close to the end face of the first heat conducting member 51 is set, so that the first heat pipe 61 can absorb the heat of the first laser 22a well and avoid the temperature of the first laser 22a from being too high; The second laser 22b has strong thermal capacity. By arranging the second laser 22b close to the end face 52 of the second heat conducting member, the second heat pipe 62 can well absorb the heat of the second laser 22b and prevent the temperature of the second laser 22b from being too high. Through the above arrangement of the first laser 22a and the second laser 22b, the first heat pipe 61 and the second heat pipe 62 can better absorb heat, so that the temperature difference between the first laser 22a and the second laser 22b can be greatly reduced .

In order to better illustrate the small difference in temperature between the first laser 22a and the second laser 22b, a comparative test is made for the scheme a and the scheme b below:

Scheme a is a scheme in which the first heat pipe 61 and the second heat pipe 62 are inserted from the end face 51 of the first heat conducting member and the end face 52 of the second heat conducting member respectively, and scheme b is that only the first heat pipe 61 is inserted from the end face 51 of the first heat conducting member Inserted program.

Test conditions: the thermal power of the first laser 22a is 60W, and the thermal power of the second laser 22b is 60W. The rotational speed of the cooling fan 7 is 2000 RPM.

The test results are shown in the following table:

	方案aoption a	方案boption b
环境温度/℃Ambient temperature/℃	2525	2525
第一激光器22a温度/℃Temperature of the first laser 22a/°C	43.543.5	43.443.4
第二激光器22b温度/℃Temperature of the second laser 22b/°C	4444	45.545.5
温差/℃Temperature difference/℃	0.50.5	2.12.1

Test conclusion: the temperature difference between the first laser 22a and the second laser 22b in scheme a is 0.5°C, and the temperature difference between the first laser 22a and the second laser 22b in scheme b is 2.1°C, it can be seen that scheme a is adopted, that is, the first Inserting a heat pipe 61 and a second heat pipe 62 from the end face 51 of the first heat conducting member and the end face 52 of the second heat conducting member respectively of the heat conducting member 5 can reduce the temperature difference between the first laser 22a and the second laser 22b.

The first laser 22a and the second laser 22b can extend out of the light source housing 21 and connect with the heat-conducting portion 53, and can also be arranged in the light source housing 21, and arranged between the light source housing 21 and the heat-conducting portion 53. On the side walls that are in contact with each other, so that the first laser 22a and the second laser 22b are indirectly connected to the heat-conducting member 5, and the first laser 22a and the second laser 22b transfer heat to the side wall of the light source housing 21, and then transfer heat to the side wall of the light source housing 21. Thermal components 5..

In some embodiments, as shown in FIG. 7 , FIG. 11 and FIG. 13 , the first heat sink insertion hole 411 and the first heat conduction member insertion hole 511 are all through holes, that is, the first heat sink insertion hole 411 penetrates through the first heat sink insertion hole 411 . The assembly end face 41 and the second assembly end face 42 , and the first heat conducting member insertion hole 511 penetrates through the first heat conducting member end face 51 and the second heat conducting member end face 52 . With this arrangement, by controlling the insertion depth of the first heat pipe 61 , the contact area between the first heat pipe 61 , the heat conducting member 5 and the fin assembly 40 can be increased, so that the first heat pipe 61 can transfer more heat from the heat conducting member 5 to the first heat pipe 61 . It is transferred to the fin assembly 40 , thereby improving the heat transfer efficiency of the first heat pipe 61 .

In some embodiments, as shown in FIGS. 11 and 13 , the second heat sink insertion hole 421 and the second heat conduction member insertion hole 521 are both through holes, that is, the second heat sink insertion hole 421 penetrates through the end surface 41 of the first component and the second component end face 42 , the second heat conducting member insertion hole 521 penetrates through the first heat conducting member end face 51 and the second heat conducting member end face 52 . With this arrangement, by controlling the insertion depth of the second heat pipe 62 , the contact area between the second heat pipe 62 , the heat conducting member 5 and the fin assembly 40 can be increased, so that the second heat pipe 62 can transfer more heat from the heat conducting member 5 to the second heat pipe 62 . It is transferred to the fin assembly 40 , thereby improving the heat transfer efficiency of the second heat pipe 62 .

In some embodiments, as shown in FIGS. 7 and 11 , the first heat pipe 61 is U-shaped. By setting the first heat pipe 61 in a U-shape, that is, the first heat pipe 61 is bent twice, so that the bending of the heat conducting medium in the first heat pipe 61 when flowing between the fin assembly 40 and the heat conducting member 5 can be reduced. This reduces the obstruction of the heat transfer medium in the first heat pipe 61 , so that the heat transfer medium flows more smoothly between the fin assembly 40 and the heat transfer member 5 along the first heat pipe 61 .

In some embodiments, as shown in FIG. 11 , the second heat pipe 62 is U-shaped. By arranging the second heat pipe 62 in a U-shape, that is, the second heat pipe 62 is bent twice, so that the bending of the heat conducting medium in the second heat pipe 62 when flowing between the fin assembly 40 and the heat conducting member 5 can be reduced. This reduces the obstruction of the heat transfer medium in the second heat pipe 62 , so that the heat transfer medium flows more smoothly between the fin assembly 40 and the heat transfer member 5 along the second heat pipe 62 .

In some embodiments, as shown in FIGS. 12 and 14 , the number of the first heat-conducting member insertion holes 511 is four, and the four first heat-conducting member insertion holes 511 are along the first arrangement direction M (that is, the The width direction) are arranged at intervals to form the first socket row 54; the number of the second heat-conducting member sockets 521 is three, and the three second heat-conducting member sockets 521 are arranged along the first arrangement direction M to form the first The two socket rows 55, the first socket row 54 and the second socket row 55 are arranged at intervals along the second arrangement direction N (that is, the thickness direction of the thermally conductive member 5, or the arrangement direction of the thermally conductive member 4 and the light source 2).

The number of the first radiator sockets 411 is four, and the four first radiator sockets 411 are arranged at intervals along the height direction H of the fin assembly 40 to form a third socket row 43 and the second radiator sockets The number of 421 is three, and the three second radiator sockets 421 are arranged at intervals along the height direction H of the fin assembly 40 to form a fourth socket row 44 , a third socket row 43 , and a fourth socket row 44 are spaced apart along the second direction X.

FIG. 15 is a schematic diagram of the arrangement of the first heat pipes 61 in FIG. 12 . As shown in FIGS. 14 and 15 , the number of the first heat pipes 61 is four, and the first end of each first heat pipe 61 is inserted into the corresponding first heat pipe 61 . In the radiator insertion hole 411 , the second end is inserted into the corresponding first heat conduction member insertion hole 511 .

16 is a schematic diagram of the arrangement of the second heat pipes 62 in FIG. 12 . As shown in FIGS. 14 and 16 , the number of the second heat pipes 62 is three, and the first end of each second heat pipe 62 is inserted into the corresponding second heat pipe 62 In the heat sink insertion holes 421 , the second ends are inserted into the corresponding second heat conduction member insertion holes 521 .

Since the first socket row 54 and the second socket row 55 are arranged at intervals along the second arrangement direction N, when the first heat pipe 61 and the second heat pipe 62 are inserted into the first heat conduction member insertion hole 511 and the second heat conduction member inserted into After the hole 521, the positions of the first heat pipe 61 and the second heat pipe 62 are staggered in layers, which can not only avoid the problem of the decrease of heat transfer efficiency caused by the contact of the first heat pipe 61 and the second heat pipe 62, but also makes the The layout of the first heat-conducting member insertion hole 511 and the second heat-conducting member insertion hole 521 on the heat-conducting member 5 is more compact, so that the heat-conducting member 5 can be inserted into more first heat pipes 61 and second heat pipes 62 under the same volume, so as to improve the The heat dissipation efficiency of the light source 2.

Since the third socket row 43 and the fourth socket row 44 are arranged at intervals along the second direction X, the layout of the first radiator socket 411 and the second radiator socket 421 on the fin assembly 40 is more compact. , so that more first heat pipes 61 and second heat pipes 62 can be inserted into the fin assembly 40 under the same volume, so as to improve the heat dissipation efficiency. Of course, the number of the first radiator jacks 411 , the first heat-conducting member jacks 511 and the first heat pipes 61 is not limited to four, and two, three, five, etc. may also be provided, which are not specifically limited here.

The number of the second radiator jacks 421 , the second heat-conducting member jacks 521 and the second heat pipes 62 is not limited to three, and two, four, five, etc. may also be provided, which are not specifically limited here.

In the description of this specification, the particular features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above are only specific implementations of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A projection device comprising:

light source;

an optical machine, which is connected to the light source;

a lens, the lens is connected with the optomechanical;

heat sink;

the first heat pipe;

the second heat pipe;

a heat-conducting part, the heat-conducting part includes a heat-conducting part, and the heat-conducting part is in contact with the light source;

The first end of the first heat pipe and the second end of the second heat pipe are both connected to the radiator, and the second end of the first heat pipe and the second end of the second heat pipe are respectively connected to the radiator. Opposite sides of the heat-conducting portion are connected to the heat-conducting member.
The projection apparatus of claim 1, wherein,

The heat-conducting member includes a first heat-conducting member end surface and a second heat-conducting member end surface disposed opposite to each other, and the heat-conducting portion is located between the first heat-conducting member end surface and the second heat-conducting member end surface;

A first heat-conducting member insertion hole is opened on the end face of the first heat-conducting member, and a second heat-conducting member insertion hole is formed on the end surface of the second heat-conducting member;

The second end of the first heat pipe is inserted into the first heat conduction member insertion hole, and the second end of the second heat pipe is inserted into the second heat conduction member insertion hole.
The projection apparatus of claim 2, wherein,

The number of the first heat-conducting member insertion holes is multiple, and the plurality of the first heat-conducting member insertion holes are arranged at intervals along the first arrangement direction to form a first insertion hole row; The number is multiple, and a plurality of the second heat-conducting member insertion holes are arranged at intervals along the first arrangement direction to form a second insertion hole row;

The second socket row and the first socket row are arranged at intervals along a second arrangement direction, the second arrangement direction is the arrangement direction of the heat-conducting member and the light source, and the first arrangement direction is the same as the the second arrangement direction is perpendicular;

The number of the first heat pipes is multiple, and the first ends of the first heat pipes are all connected to the heat sink, and the second ends are respectively inserted into the plurality of the first heat conducting member insertion holes in a one-to-one correspondence. ;

The number of the second heat pipes is multiple, and the first ends of the second heat pipes are all connected with the heat sink, and the second ends are respectively inserted into the plurality of the second heat-conducting member insertion holes in a one-to-one correspondence. .
The projection apparatus of claim 2, wherein,

The first heat-conducting member insertion hole and the second heat-conducting member insertion hole are both through holes penetrating the end surface of the first heat-conducting member and the end surface of the second heat-conducting member.
The projection apparatus of claim 2, wherein,

The light source further includes a first laser and a second laser arranged along the first direction and both in contact with the heat-conducting part, the first laser is disposed close to the end face of the first heat-conducting member, and the second laser is close to the end face of the first heat-conducting member. the end face of the second heat conducting member is arranged;

Wherein, the first direction is the arrangement direction of the end face of the first heat conducting member and the end face of the second heat conducting member.
The projection apparatus of claim 1, wherein,

The heat-conducting portion is a heat-conducting surface, and the heat-conducting surface and the light source are in surface contact.
The projection apparatus of claim 2, wherein,

The radiator includes a fin assembly, and the fin assembly includes a first assembly end face and a second assembly end face arranged opposite to each other; the first assembly end face is provided with a first radiator insertion hole, the second assembly end face The end face of the component is provided with a second radiator jack;

The heat-conducting member is located between the fin assembly and the light source, and along the first direction, the end face of the first heat-conducting member is located at the end of the heat-conducting member close to the end face of the first assembly, and the second heat-conducting member The end surface of the component is located at one end of the heat conducting component close to the end surface of the second component; the first direction is the arrangement direction of the end surface of the first component and the end surface of the second component;

The first end of the first heat pipe is inserted into the first radiator insertion hole, and the first end of the second heat pipe is inserted into the second radiator insertion hole;

The projection apparatus further includes a cooling fan, and the fin assembly is located on a flow path of the wind generated by the cooling fan.
The projection apparatus of claim 7, wherein,

The first radiator insertion hole and the second radiator insertion hole are both through holes passing through the end face of the first component and the end surface of the second component.
The projection apparatus of claim 7, wherein,

The first heat pipe is U-shaped, and/or the second heat pipe is U-shaped.
The projection apparatus of claim 7, wherein,

In a second direction, the cooling fan is located on the side of the fin assembly away from the heat conducting member, and the second direction is the arrangement direction of the fin assembly and the light source.
A projection system, comprising:

projection screen;

The projection device according to any one of claims 1 to 10, wherein the lens of the projection device is used to project the projection beam onto the projection screen to form a projection picture.