CN212255995U

CN212255995U - Heat radiation structure and projector

Info

Publication number: CN212255995U
Application number: CN202021264669.9U
Authority: CN
Inventors: 林泽涛
Original assignee: Efun Display Technology Shenzhen Co ltd
Current assignee: Efun Display Technology Shenzhen Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-12-29
Anticipated expiration: 2030-06-30

Abstract

The utility model provides a heat radiation structure, which is used for radiating heat of a device to be radiated, and comprises an installation shell, a radiator and a heat pipe, wherein the installation shell comprises a support plate and a first shell connected with the support plate, the first shell, the support plate and the heat pipe are commonly enclosed to form an accommodating cavity for placing the device to be radiated, and the support plate is provided with a connecting hole communicated to the accommodating cavity; the radiator comprises a plurality of radiating fins for radiating heat, and the radiating fins are all positioned outside the accommodating cavity; the heat pipe is arranged in the connecting hole in a penetrating mode and extends into the containing cavity, one end, located outside the containing cavity, of the heat pipe is connected to the radiator, one end, located inside the containing cavity, of the heat pipe is used for being attached to a device to be cooled, so that heat of the device to be cooled is transmitted to the radiator, and the circumferential side wall of the heat pipe is connected to the hole wall of the connecting hole in a sealing mode. The device to be cooled can achieve the cooling effect while being isolated from the radiator, dust is prevented from being accumulated on the device to be cooled, the dustproof effect is enhanced, and the service life of the device to be cooled is prolonged.

Description

Heat radiation structure and projector

Technical Field

The utility model belongs to the technical field of projection equipment, especially, relate to a heat radiation structure and projecting apparatus.

Background

The projector can divide light of a light source into three monochromatic colors of red, green and blue, then the three colors are synthesized into different images through a prism in the light machine, and finally the images are projected onto a screen through the lens. The projector is particularly sensitive to dust, generally in order to guarantee that the temperature is qualified, the air flow needs to flow through the optical machine and the light source to bring out heat, so that the dustproof effect of the projector is poor, the accumulation of dust for a long time can cause poor heat dissipation of an optical part, the temperature is increased, the service life of the projector is influenced, and the optical part can be burnt seriously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat radiation structure and projecting apparatus aims at solving the not good technical problem who makes the dust accumulational on optics portion article of dustproof effect of projecting apparatus among the prior art.

The utility model discloses a realize like this, a heat radiation structure for treat the heat dissipation device and dispel the heat, include:

the mounting shell comprises a supporting plate and a first shell connected to the supporting plate, the first shell and the supporting plate are jointly surrounded to form an accommodating cavity for accommodating the device to be cooled, and the supporting plate is provided with a connecting hole communicated to the accommodating cavity;

the radiator comprises a plurality of radiating fins for radiating heat, and the plurality of radiating fins are all positioned outside the accommodating cavity;

the heat pipe is arranged in a penetrating mode, extends to the accommodating cavity, one end of the heat pipe, which is located outside the accommodating cavity, is connected to the radiator, one end of the heat pipe, which is located inside the accommodating cavity, is used for being attached to the device to be cooled, so that heat of the device to be cooled is transferred to the radiator, and the circumferential side wall of the heat pipe is connected to the hole wall of the connecting hole in a sealing mode.

In one embodiment, the heat pipe is plate-shaped, and the plate surface of the heat pipe is attached to the device to be cooled.

In one embodiment, the heat dissipation structure further includes a sealing ring connected between the heat pipe and a hole wall of the connection hole, and the accommodating cavity is sealed.

In one embodiment, the heat dissipation structure further includes an air blowing member capable of blowing air toward the heat sink.

In one embodiment, the air blowing member is a fan.

In one embodiment, the heat dissipation structure further includes a second housing connected to the mounting case, the second housing and the support plate together form a mounting cavity, the heat sink is located in the mounting cavity, the second housing is provided with an air inlet and an air outlet both communicated with the mounting cavity, and the air blowing member can guide the airflow in the mounting cavity from the air inlet to the air outlet.

In one embodiment, the heat dissipation structure further includes a filter screen connected to the second housing and covering the air inlet.

In one embodiment, the heat pipe is provided with a plurality of heat pipes, and the plurality of heat pipes are arranged around the periphery of the device to be cooled.

The embodiment also provides a projector, which comprises the heat dissipation structure.

In one embodiment, the projector further includes a light source disposed in the accommodating cavity and an optical engine for projection, the first housing has a light exit hole, the optical engine can exit light through the light exit hole, and the heat pipe is attached to the light source.

The utility model discloses technical effect for prior art is: the heat dissipation structure enables the device to be dissipated to be positioned in the accommodating cavity by arranging the support plate and the first shell, the support plate is provided with the connecting hole, the heat pipe can be hermetically connected with the hole wall of the connecting hole, so as to isolate the device to be radiated from the radiator, the air flow passing through the radiator will not affect the device to be radiated, the device to be radiated will not be affected by the dust in the air flow, the heat pipe is attached to the device to be radiated and connected with the radiator, therefore, the heat pipe can absorb the heat of the device to be radiated and conduct the heat to the radiator outside the accommodating cavity, the radiating fins radiate the heat to the air or airflow outside the accommodating cavity, in order to reach the radiating effect, treat the radiating device like this and just can reach the radiating effect when keeping apart with the radiator, prevent that the dust from piling up on treating the radiating device, strengthened dustproof effect, prolonged the life-span of treating the radiating device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structure diagram of a heat dissipation structure provided in an embodiment of the present invention;

FIG. 2 is a partial exploded view of the heat dissipation structure of FIG. 1;

fig. 3 is a perspective structural view of a projector according to an embodiment of the present invention;

fig. 4 is a partial structural view of the projector of fig. 1.

Description of reference numerals:

10. mounting a shell; 11. a first housing; 111. a light exit hole; 12. a support plate; 121. connecting holes; 20. a heat sink; 21. a heat dissipating fin; 30. a heat pipe; 40. a second housing; 401. an air inlet; 50. filtering with a screen; 60. a seal ring; 70. a blower member; 90. a device to be heat dissipated; 91. an optical machine; 911. a lens; 92. a light source.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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.

Referring to fig. 1 and 2, the present invention provides a heat dissipation structure for dissipating heat of a device 90 to be dissipated, wherein the device 90 to be dissipated may include an optical machine 91, a light source 92, and the like, and the light source 92 is an LED light source 92.

Referring to fig. 3, the heat dissipation structure includes a mounting case 10, a heat sink 20 and a heat pipe 30.

Referring to fig. 1 and 2, the mounting case 10 includes a supporting plate 12 and a first casing 11 connected to the supporting plate 12, wherein the first casing 11 is in a shape of a cover, the first casing 11, the supporting plate 12 and the heat pipe 30 together enclose a containing cavity for containing the device 90 to be cooled, and the supporting plate 12 is provided with a connecting hole 121 communicated to the containing cavity.

Referring to fig. 1, the heat sink 20 includes a plurality of heat dissipation fins 21 for dissipating heat, and the plurality of heat dissipation fins 21 are located outside the accommodating cavity. The plurality of heat dissipation fins 21 are arranged at intervals and in an array.

Referring to fig. 2 and fig. 3, the heat pipe 30 is disposed through the connection hole 121 and extends into the accommodating cavity, one end of the heat pipe 30 located outside the accommodating cavity is connected to the heat sink 20, one end of the heat pipe 30 located inside the accommodating cavity is used for attaching to the device 90 to be heat-dissipated so as to transfer heat of the device 90 to be heat-dissipated to the heat sink 20, and a circumferential side wall of the heat pipe 30 is hermetically connected to a hole wall of the connection hole 121. In the present embodiment, the heat pipe 30 is plate-shaped, and the plate surface thereof is attached to the device to be cooled 90, so as to increase the contact area between the heat pipe 30 and the device to be cooled 90. The heat pipes 30 may be provided in plural, and the plural heat pipes 30 are arranged around the circumference of the device to be cooled 90, so as to enhance the cooling effect of the device to be cooled 90. In the present embodiment, three heat pipes 30 are provided, and three heat pipes 30 are surrounded to form a U-shaped structure, and the device to be cooled 90 can be inserted into the U-shaped structure to position the device to be cooled 90. Correspondingly, the heat dissipation fins 21 are also arranged in a U-shaped configuration so that the heat dissipation fins 21 transfer heat to the air.

The heat dissipation structure is provided with the support plate 12 and the first shell 11, so that a device 90 to be dissipated can be positioned in the accommodating cavity, the support plate 12 is provided with the connecting hole 121, the heat pipe 30 can be hermetically connected with the hole wall of the connecting hole 121 to isolate the device 90 to be dissipated from the heat sink 20, the air flow passing through the heat sink 20 cannot influence the device 90 to be dissipated, the device 90 to be dissipated cannot be influenced by dust in the air flow, the heat pipe 30 is attached to the device 90 to be dissipated and is connected with the heat sink 20, therefore, the heat pipe 30 can absorb the heat of the device 90 to be dissipated and conduct the heat to the heat sink 20 outside the accommodating cavity, the heat dissipation fins 21 dissipate the heat to the air or the air flow outside the accommodating cavity to achieve the heat dissipation effect, so that the device 90 to be dissipated can achieve the heat dissipation effect while being isolated from the heat sink 20, and dust is prevented from being, the dustproof effect is enhanced, and the service life of the device to be cooled 90 is prolonged.

Referring to fig. 4, preferably, the first housing 11 may be opened with a light exit hole 111 to facilitate the optical engine 91 to project an image outward, the optical engine 91 may be covered at the light exit hole 111 in a sealing manner, and a transparent cover plate, such as transparent glass, may be disposed at the light exit hole 111 to enable the accommodating cavity to form a closed cavity, further prevent dust from entering the accommodating cavity, prevent the dust from depositing on the device 90 to be cooled, and meanwhile, may also have a waterproof function.

Referring to fig. 2, in order to enhance the sealing performance of the accommodating cavity, the heat dissipation structure further includes a sealing ring 60 connected between the heat pipe 30 and the wall of the connecting hole 121. The packing 60 can seal a gap between the heat pipe 30 and the wall of the hole of the connection hole 121. In the present embodiment, the seal ring 60 is made of rubber.

Referring to fig. 1, in order to promote the flow of the air through the heat sink 20, the heat dissipating structure further includes an air blowing member 70, and the air blowing member 70 can blow air toward the heat sink 20. This allows the air flow to pass through the heat sink 20 quickly to increase the heat dissipation efficiency of the heat sink 20. Preferably, the air blowing member 70 is a fan to reduce the processing cost. Wherein the heat sink 20 and the device to be heat-dissipated 90 are respectively located at both sides of the support plate 12, so that the support plate 12 can block the air flow passing through the heat sink 20. In the present embodiment, two air blowing members 70 are provided, respectively, on both sides of the heat sink 20, and the air blowing directions of the two air blowing members 70 are the same, so as to increase the amount of air flow.

Referring to fig. 3 and 4, in order to support and fix the heat sink 20, the heat dissipation structure further includes a second housing 40 connected to the mounting case 10, the second housing 40 and the supporting plate 12 together form a mounting cavity, the heat sink 20 is located in the mounting cavity, the second housing 40 is provided with an air inlet 401 and an air outlet both communicated with the mounting cavity, and the air blowing member 70 can guide the air flow in the mounting cavity from the air inlet 401 to the air outlet. In this way, the second casing 40 protects the heat sink 20 and the air blower 70, and prevents the heat sink 20 and the air blower 70 from being knocked by the outside. Wherein, the two air blowing members 70 are respectively located at the air inlet 401 and the air outlet.

Referring to fig. 3 and 4, in order to prevent external impurities or flying insects from entering the installation cavity, the heat dissipation structure further includes a filter screen 50 connected to the second housing 40 and covering the air inlet 401, and the filter screen 50 can filter the air flow. Wherein, there may be two filter screens 50, and the two filter screens 50 are respectively located at the air inlet 401 and the air outlet.

Referring to fig. 3 and 4, an embodiment of the present invention provides a projector, including the heat dissipation structure provided in each of the embodiments. The heat dissipation structure has the same structural features as the heat dissipation structures in the above embodiments, and the functions thereof are the same, which are not described herein again.

Referring to fig. 3 and 4, the projector further includes a light source 92 disposed in the accommodating cavity and an optical engine 91 for projection, the first housing 11 is provided with a light exit hole 111, the optical engine 91 can exit light through the light exit hole 111, and the heat pipe 30 is attached to the light source 92. The optical engine 91 has a lens 911, and the lens 911 is aligned with the light exit hole 111. This projecting apparatus has realized the dustproof effect of ray apparatus 91 and light source 92 through heat radiation structure, and the heat of light source 92 and ray apparatus 91 can pass through heat pipe 30 and transmit to radiator 20, in distributing to the air from radiator 20 again, has prolonged the life of projecting apparatus. Wherein, the light source 92 is an LED light source 92, the light source 92 can be provided with a heat sink, and the heat pipe 30 can be attached to the light source 92.

The foregoing is only a preferred embodiment of the present invention, and the technical principles of the present invention have been specifically described, and the description is only for the purpose of explaining the principles of the present invention, and should not be construed as limiting the scope of the present invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are intended to be included within the protection scope of the invention.

Claims

1. A heat radiation structure is used for radiating heat of a device to be radiated, and is characterized by comprising:

2. The heat dissipation structure of claim 1, wherein the heat pipe is plate-shaped, and a plate surface of the heat pipe is attached to the device to be dissipated.

3. The heat dissipating structure of claim 1, further comprising a sealing ring connected between the heat pipe and the wall of the connecting hole, wherein the receiving cavity is sealed.

4. The heat dissipation structure of claim 1, further comprising an air blowing member capable of blowing air toward the heat sink.

5. The heat dissipating structure of claim 4, wherein the air blowing member is a fan.

6. The heat dissipation structure of claim 4, further comprising a second housing connected to the mounting shell, wherein the second housing and the supporting plate together form a mounting cavity, the heat sink is located in the mounting cavity, the second housing is provided with an air inlet and an air outlet both communicated with the mounting cavity, and the air blowing member can guide the airflow in the mounting cavity from the air inlet to the air outlet.

7. The heat dissipating structure of claim 6, further comprising a filter screen coupled to the second housing and covering the air inlet.

8. The heat dissipation structure of claim 1, wherein a plurality of heat pipes are provided, and the plurality of heat pipes are arranged around the circumference of the device to be dissipated.

9. A projector characterized by comprising the heat dissipation structure according to any one of claims 1 to 8.

10. The projector according to claim 9, further comprising a light source disposed in the accommodating chamber and an optical engine for projection, wherein the first housing has a light exit hole through which the optical engine can exit light, and the heat pipe is attached to the light source.