CN218298747U

CN218298747U - Projector heat dissipation device

Info

Publication number: CN218298747U
Application number: CN202222505405.3U
Authority: CN
Inventors: 邹智泉; 赖成; 徐奎
Original assignee: Dongguan Qinshi Metal Technology Co ltd
Current assignee: Dongguan Qinshi Metal Technology Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-13
Anticipated expiration: 2032-09-22

Abstract

The utility model relates to a projecting apparatus heat abstractor, include: the heat dissipation assembly comprises a radiator, a heat conduction seat positioned at one end of the radiator and a plurality of heat pipes arranged on the heat conduction seat; one end of the heat pipe, which is far away from the heat conducting seat, is used for inserting the radiator; an air duct is arranged in the middle of the radiator along the axial lead direction of the radiator, and the diameter of the middle of the air duct is smaller than the diameters of the two opposite ends of the air duct; the air cooling assembly is arranged at one end of the heat dissipation assembly; one end of the air duct faces the heat conducting seat, and the other end of the air duct faces the air cooling assembly. The projector heat dissipation device is simple in structure and convenient to use, the air duct is arranged inside the radiator, the diameter of the middle of the air duct is smaller than the diameter of the two opposite ends of the air duct, the flow speed of air flow is effectively accelerated to take away heat on the radiator quickly, and the heat dissipation efficiency is greatly improved.

Description

Projector heat dissipation device

Technical Field

The utility model relates to a projecting apparatus heat dissipation technical field especially relates to a projecting apparatus heat abstractor.

Background

A projector, which is a device capable of projecting images or videos onto a curtain, is widely used in homes, offices, schools, entertainment venues, and the like. The projector works for a long time, the light source of the projector emits huge heat, and the heat dissipation in the traditional projector at present mainly depends on a fan to carry out air cooling heat dissipation on heat-generating components.

In the conventional projector, in order to improve the heat dissipation efficiency, the number of fans is mainly increased or a fan with a high rotation speed is adopted. The increased number of the fans occupies a larger space, the design of the inner space structure of the projector is influenced, and the high-speed fans bring larger fan noise and influence the use experience of users.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a projecting apparatus heat abstractor, simple structure, convenient to use is equipped with the wind channel in the inside of radiator, and the diameter at wind channel middle part is less than the diameter at the relative both ends in wind channel, effectively accelerates the air current velocity of flow in order to take away the heat of radiator fast, improves the radiating efficiency greatly.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

a projector heat sink comprising:

the heat dissipation assembly comprises a radiator, a heat conduction seat positioned at one end of the radiator and a plurality of heat pipes arranged on the heat conduction seat; one end of the heat pipe, which is far away from the heat conducting seat, is used for inserting the radiator; an air duct is arranged in the middle of the radiator along the axial lead direction of the radiator, and the diameter of the middle of the air duct is smaller than the diameters of the two opposite ends of the air duct; and

the air cooling assembly is arranged at one end of the heat dissipation assembly; one end of the air duct faces the heat conducting seat, and the other end of the air duct faces the air cooling assembly.

The projector heat dissipation device is simple in structure and convenient to use, the air channel is arranged in the radiator, the diameter of the middle of the air channel is smaller than the diameters of the two opposite ends of the air channel, the air flow speed is effectively accelerated to take away heat on the radiator quickly, and the heat dissipation efficiency is greatly improved.

In one embodiment, the air cooling assembly comprises a bearing seat connected to one end of the radiator and a fan arranged on the bearing seat; the fan faces to one end, far away from the heat conducting seat, of the air duct.

In one embodiment, the heat radiator comprises a cylinder, fin monomers which are uniformly spaced and radially extend outwards from the peripheral surface of the cylinder, and a plurality of adapter plates which extend outwards from one end of the cylinder; the adapter plate is welded on the bearing seat; the air duct is arranged inside the cylinder.

In one embodiment, a plurality of insertion holes are formed in the cylinder body along the axial lead direction of the cylinder body, and the insertion holes are used for inserting the heat pipes.

In one embodiment, the bearing seat is provided with a through hole and a plurality of hollow grooves which are uniformly arranged at intervals along the periphery of the through hole; the through hole and the air duct are coaxially arranged, and the hollow groove corresponds to the fin monomer.

In one embodiment, the diameter of the through hole is equal to the diameter of the end of the air duct.

Drawings

Fig. 1 is a schematic perspective view of a heat dissipation device of a projector according to an embodiment of the present invention;

FIG. 2 is an exploded view of the heat sink of the projector shown in FIG. 1;

FIG. 3 is an exploded view of the heat sink of the projector shown in FIG. 2 from another perspective;

FIG. 4 is a schematic view of the heat sink and the supporting base of the heat dissipating device of the projector shown in FIG. 2;

fig. 5 is a cross-sectional view of the heat sink of the projector shown in fig. 1.

Reference is made to the accompanying drawings in which:

10-a heat dissipation assembly, 11-a heat radiator, 111-a cylinder, 112-a fin monomer, 113-an adapter sheet, 114-a jack, 12-a heat conduction seat, 13-a heat pipe and 14-an air duct;

20-air cooling component, 21-bearing seat, 22-fan, 23-through hole and 24-hollow groove.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship 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 particular orientation, be constructed and operated in a particular orientation, and therefore, 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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

Referring to fig. 1 to 5, a heat dissipation device for a projector according to an embodiment of the present invention includes a heat dissipation assembly 10 and an air cooling assembly 20 installed at one end of the heat dissipation assembly 10.

The heat dissipation assembly 10 includes a heat sink 11, a heat conduction seat 12 at one end of the heat sink 11, and a plurality of heat pipes 13 mounted on the heat conduction seat 12; one end of the heat pipe 13 away from the heat conducting base 12 is used for inserting the heat sink 11. The heat conducting base 12 is used for attaching a light source module of the projector, so that heat generated by the light source module is transferred to the heat sink 11 through the heat pipe 13 for dissipation.

An air duct 14 is disposed in the middle of the heat sink 11 along the axial direction thereof, one end of the air duct 14 faces the heat conducting base 12, and the other end of the air duct 14 faces the air-cooling assembly 20. As shown in fig. 5, in the present embodiment, the diameter of the middle of the air duct 14 is smaller than the diameters of the opposite ends of the air duct 14, i.e., the middle is narrow and the ends are wide, so that the inside of the radiator 11 forms a "throat effect". When the air flow flows from the side of the heat conducting seat 12 to the side of the air cooling assembly 20 through the air duct 14, because the mass of air cannot be accumulated in a large amount, the air flow is accelerated to flow through the air duct 14, so that the flow velocity of the air flow is increased, the heat on the radiator 11 can be taken away quickly, and the heat dissipation efficiency is improved. Compare with traditional heat radiation structure, the utility model discloses a projector heat abstractor utilizes the diameter change of wind channel 14 ingeniously under the prerequisite that does not increase fan quantity or rotational speed for the inside of radiator 11 forms "narrow tube effect", reaches the effect of the increase of the air current velocity of flow, has improved the radiating efficiency greatly, neither has changed the inner structure design of projecting apparatus, also can not be on the spot the noise that increases, and the advantage is obvious.

In this embodiment, the heat sink 11 includes a cylinder 111, fin units 112 extending radially outward from the outer circumferential surface of the cylinder 111 at regular intervals, and a plurality of adapter plates 113 extending outward from one end of the cylinder 111; the interposer 113 is used to mate with the air-cooled assembly 20. The air duct 14 is provided inside the cylinder 111. The inside of the cylinder 111 is provided with a plurality of insertion holes 114 along the axial direction, and the insertion holes 114 are used for inserting the heat supply pipe 13 so as to realize the connection between the heat sink 11 and the heat pipe 13.

The air cooling assembly 20 comprises a bearing seat 21 connected to one end of the radiator 11 and a fan 22 mounted on the bearing seat 21; the fan 22 faces an end of the air duct 14 away from the heat conductive base 12. The carrying seat 21 and the cylinder 111 are disposed at an interval, and the adapter sheet 113 is welded on the carrying seat 21 to connect the heat sink 11 and the carrying seat 21.

In the present embodiment, the bearing seat 21 has a through hole 23 and a plurality of hollow-out grooves 24 uniformly spaced around the through hole 23. The through hole 23 and the air duct 14 are coaxially arranged, and the aperture of the through hole 23 is equal to the diameter of the end of the air duct 14. The hollow-out groove 24 corresponds to the fin single body 112, so that air around the fin single body 112 passes through the hollow-out groove 24 and is then extracted by the fan 22, and heat on the fin single body 112 is taken away.

The projector heat dissipation device is simple in structure and convenient to use, the air duct 14 is arranged inside the heat dissipation device 11, the diameter of the middle of the air duct 14 is smaller than the diameter of the two opposite ends of the air duct 14, the flow speed of air flow is effectively accelerated to take away heat on the heat dissipation device 11 quickly, and heat dissipation efficiency is greatly improved.

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

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A heat sink for a projector, comprising:

2. The heat dissipation device of claim 1, wherein the air-cooling assembly comprises a carrying base connected to one end of the heat sink, and a fan mounted on the carrying base; the fan faces to one end, far away from the heat conducting seat, of the air duct.

3. The heat sink of claim 2, wherein the heat sink comprises a cylinder, a fin unit extending radially outward from the outer circumferential surface of the cylinder at regular intervals, and a plurality of adapter plates extending outward from one end of the cylinder; the adapter plate is welded on the bearing seat; the air duct is arranged inside the cylinder.

4. The projector heat sink according to claim 3, wherein a plurality of insertion holes are provided in the cylinder along an axial direction of the cylinder, and the insertion holes are used for inserting the heat pipes.

5. The heat dissipation device of claim 3, wherein the supporting base has a through hole and a plurality of through holes spaced uniformly around the through hole; the through hole and the air duct are coaxially arranged, and the hollow groove corresponds to the fin monomer.

6. The projector heat sink device as claimed in claim 5, wherein the aperture of the through hole is equal to the diameter of the end of the air duct.