CN217443719U

CN217443719U - Heat radiation structure and projection equipment

Info

Publication number: CN217443719U
Application number: CN202221088085.XU
Authority: CN
Inventors: 谭大治
Original assignee: Formovie Chongqing Innovative Technology Co Ltd
Current assignee: Formovie Chongqing Innovative Technology Co Ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-09-16
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a heat radiation structure and projection equipment, heat radiation structure shell and radiator unit, in radiator unit located the shell, the inner wall of shell includes curved face portion, and radiator unit includes a plurality of heat radiation fins, and two adjacent heat radiation fins intervals set up, and each heat radiation fins's shape is the same with the size, and each heat radiation fins matches towards the shape and the curved face portion shape of curved face portion one side. The shape and the size of each radiating fin in the radiating structure are the same, the processing cost can be effectively reduced, and meanwhile, the shape of one side, facing the curved surface part, of each radiating fin is matched with the shape of the curved surface part, so that the radiating fins can be better matched with the shape of the shell, and the space utilization rate in the shell is improved.

Description

Heat radiation structure and projection equipment

Technical Field

The utility model relates to a projection technology field especially relates to a heat radiation structure and projection equipment.

Background

When the projection equipment works, heating devices such as a light source, an optical machine and a main control chip in a shell of the projection equipment generate a large amount of heat, and the heat is required to be dissipated timely for ensuring the normal work of the projection equipment. In order to improve the heat dissipation effect, a heat dissipation assembly having a plurality of heat dissipation fins is mainly used for heat dissipation. For the projection device with the curved surface outline of the shell, in order to ensure the heat dissipation effect and the space utilization rate, the heat dissipation assembly with the heat dissipation fins with different sizes is usually adopted, the outline of the shell is adapted through the size change of the heat dissipation fins, but in order to process the heat dissipation fins with different sizes, the required mold is complex, and the product cost can be improved.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses lie in overcoming the problem that prior art exists, provide a lower and high heat radiation structure and projection equipment of space utilization of cost.

The technical scheme is as follows:

a heat radiation structure comprises a shell and a heat radiation assembly, wherein the heat radiation assembly is arranged in the shell, the inner wall of the shell comprises a curved surface part, the heat radiation assembly comprises a plurality of heat radiation fins, two adjacent heat radiation fins are arranged at intervals, the shape and the size of each heat radiation fin are the same, and the shape of one side, facing the curved surface part, of each heat radiation fin is matched with the shape of the curved surface part.

The heat dissipation structure can dissipate heat through the heat dissipation fins, the two adjacent heat dissipation fins are arranged at intervals, air flow can conveniently pass through the space between the two adjacent heat dissipation fins, so that the heat exchange efficiency of the heat dissipation fins and the air flow is improved, the shape and the size of each heat dissipation fin are the same, the processing cost can be effectively reduced, meanwhile, the shape of one side, facing the curved surface part, of each heat dissipation fin is matched with the shape of the curved surface part, the heat dissipation fins can be better matched with the shape of the shell, and the space utilization rate in the shell is improved.

In one embodiment, an air flow channel is formed between two adjacent heat dissipation fins, and a vent communicated with the air flow channel is arranged on the curved surface portion.

In one embodiment, the heat dissipation structure further includes a fan, the fan is disposed on a side of the heat dissipation fin away from the ventilation opening, and the ventilation opening is communicated with the air inlet or the air outlet of the fan through the air flow channel.

In one embodiment, each of the heat dissipation fins is disposed away from the end surface of the curved surface portion and is disposed opposite to the air inlet or the air outlet of the fan.

In one embodiment, the heat dissipation fins are arranged in parallel.

In one embodiment, the projection of each of the heat dissipation fins on the projection plane parallel to any one of the heat dissipation fins is overlapped.

In one embodiment, the heat dissipation structure further includes a heating device disposed in the housing, and the heat dissipation assembly further includes at least one heat pipe, one end of the heat pipe penetrates through the plurality of heat dissipation fins, and the other end of the heat pipe is connected to the heating device.

In one embodiment, the housing includes a cylinder, a part of the inner wall of the cylinder is the curved surface, and the heat dissipation fins are stacked in the axial direction of the cylinder.

In one embodiment, the number of the heat dissipation assemblies is at least two, and each heat dissipation assembly is arranged along the circumferential direction of the curved surface portion.

A projection device comprising a heat dissipation structure as claimed in any preceding claim.

According to the projection equipment, heat can be dissipated through the heat dissipation fins, the two adjacent heat dissipation fins are arranged at intervals, air flow can conveniently pass through the space between the two adjacent heat dissipation fins, so that the heat exchange efficiency of the heat dissipation fins and the air flow is improved, the shape and the size of each heat dissipation fin are the same, the processing cost can be effectively reduced, meanwhile, the shape of one side, facing the curved surface portion, of each heat dissipation fin is matched with the shape of the curved surface portion, the shape of the heat dissipation fin can be better matched with that of the shell, and the space utilization rate in the shell is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention.

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

Fig. 1 is an exploded schematic view of a projection apparatus according to an embodiment of the present invention;

fig. 2 is a first schematic view illustrating an assembly of the heat dissipation assembly and the heat pipe according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating an assembly of the heat dissipation assembly and the heat pipe according to an embodiment of the present invention.

Description of reference numerals:

100. a housing; 101. a curved surface portion; 102. a vent; 110. a cylinder body; 111. a main body portion; 112. a separation part; 200. a heat dissipating component; 201. an air flow channel; 210. heat dissipation fins; 300. a fan; 400. a heat generating device; 500. a heat conducting pipe; 600. an optical machine; 700. and (5) a lens.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1 to fig. 3, an embodiment discloses a heat dissipation structure, which includes a housing 100 and a heat dissipation assembly 200, wherein the heat dissipation assembly 200 is disposed in the housing 100, an inner wall of the housing 100 includes a curved surface portion 101, the heat dissipation assembly 200 includes a plurality of heat dissipation fins 210, two adjacent heat dissipation fins 210 are disposed at intervals, shapes and sizes of the heat dissipation fins 210 are the same, and a shape of a side of each heat dissipation fin 210 facing the curved surface portion 101 is matched with a shape of the curved surface portion 101.

The heat dissipation structure can dissipate heat through the heat dissipation fins 210, the two adjacent heat dissipation fins 210 are arranged at intervals, air flow can conveniently pass through the space between the two adjacent heat dissipation fins 210, so that the heat exchange efficiency of the heat dissipation fins 210 and the air flow is improved, the shapes and the sizes of the heat dissipation fins 210 are the same, the processing cost can be effectively reduced, meanwhile, the shapes of the heat dissipation fins 210 facing the curved surface part 101 are matched with the shapes of the curved surface part 101, the heat dissipation fins can be better matched with the shape of the shell 100, and the space utilization rate in the shell 100 is improved.

In one embodiment, as shown in fig. 1 to 3, an air channel 201 is formed between two adjacent heat dissipation fins 210, and a ventilation opening 102 communicating with the air channel 201 is disposed on the curved surface portion 101. At this time, the air flow channel 201 formed between two adjacent heat dissipation fins 210 can communicate with the outside through the ventilation opening 102 on the curved surface portion 101, so that the heat dissipation efficiency can be improved.

Optionally, the ventilation opening 102 is plural, and the plural ventilation openings 102 are arranged at intervals and are arranged corresponding to the air flow passage 201. The vent 102 may be circular, square, regular hexagonal, elongated, or other shape.

In one embodiment, as shown in fig. 1, the heat dissipation structure further includes a fan 300, the fan 300 is disposed on a side of the heat dissipation fin 210 away from the ventilation opening 102, and the ventilation opening 102 is communicated with an air inlet or an air outlet of the fan 300 through the air flow channel 201. The air flows through the fan 300, the air flow channel 201 formed between two adjacent heat dissipation fins 210 is opposite to the air inlet or the air outlet of the fan 300, and when the flowing air passes through the air flow channel 201, the heat of the heat dissipation fins 210 is taken away, so that the heat exchange efficiency can be improved.

Alternatively, the air outlet of the fan 300 is disposed opposite to the heat dissipation fins 210, that is, the air outlet of the fan 300 is directly circulated through the air and exhausted out of the housing 100 through the ventilation opening 102. Of course, in other embodiments, the heat dissipation fins 210 may be disposed opposite to the air inlet of the fan 300.

In one embodiment, as shown in fig. 1 to 3, each of the heat dissipation fins 210 is disposed flush with the end surface away from the curved surface portion 101 and is disposed opposite to the air inlet or the air outlet of the fan 300. The end surface of the air inlet or the air outlet of the fan 300 is generally a plane, and the end of the heat dissipation fin 210 close to the fan 300 is flush and level, and can be attached to the end surface of the air inlet or the air outlet of the fan 300, so that the fan 300, the heat dissipation fin 210 and the curved surface portion 101 are assembled tightly, the sealing effect is better, the dissipation or loss of air flow can be reduced, and the heat dissipation efficiency is improved. And the shape and size of each heat dissipation fin 210 are the same, so that the cost difficulty and cost are lower.

Alternatively, the edge of the heat sink 210 includes two portions, one portion is opposite to the curved surface portion 101, and the other portion is opposite to the air inlet or the air outlet of the fan 300, so that the fan 300, the heat sink 210, and the curved surface portion 101 can be tightly fitted to form a heat sink channel.

In one embodiment, the heat dissipation fins 210 are disposed in parallel. At this time, the distance between two adjacent heat dissipation fins 210 is the same in the air flowing direction, which is beneficial for the air to pass through the air flow channel 201, and improves the heat dissipation efficiency. Further, the extending direction of each heat dissipation fin 210 is axially parallel to the airflow at the air inlet or the air outlet of the fan 300, which is beneficial for the air to enter the air flow channel 201 from the air outlet of the fan 300 or enter the air inlet of the fan 300 from the air flow channel 201, so as to improve the flowing speed of the air and improve the heat dissipation efficiency.

In one embodiment, the projection of each of the cooling fins 210 on the projection plane parallel to any of the cooling fins 210 overlaps. At this time, the heat dissipation fins 210 have the same shape and size, and are easy to process, and the edges of the heat dissipation fins 210 are stacked and aligned, which is beneficial to reducing the space occupied by the heat dissipation assembly 200.

In one embodiment, as shown in fig. 1, the heat dissipation structure further includes a heat generating device 400 disposed in the housing 100, and the heat dissipation assembly 200 further includes at least one heat pipe 500, one end of the heat pipe 500 penetrates through the plurality of heat dissipation fins 210, and the other end is connected to the heat generating device 400. The heat pipe 500 is disposed through the plurality of heat dissipation fins 210, so that heat of the heat generating device 400 is rapidly transferred to the heat dissipation fins 210, thereby improving heat dissipation efficiency. The arrangement direction of the heat generating device 400 and the heat dissipating assembly 200 may improve the space utilization rate within the housing 100.

Alternatively, the heat conducting pipe 500 may be a plurality of pipes, and by providing a plurality of heat conducting pipes 500, the heat generated by the heat generating device 400 can be transferred to the heat dissipating fins 210 more quickly, so that the heat dissipating efficiency of the heat generating device 400 can be further improved. For example, the heat dissipation structure may be applied to a projection apparatus, the heat generating device 400 in the housing 100 is a light source 410 of the projection apparatus, one end of the heat conducting pipe 500 is connected to the light source 410, and the other end of the heat conducting pipe 500 is disposed through the plurality of heat dissipation fins 210, so that heat generated by the light source 410 is rapidly transferred to the heat dissipation fins 210, thereby improving the heat dissipation efficiency of the light source 410. The projection apparatus further includes an optical engine 600 and a lens 700, and the light source 410, the optical engine 600 and the lens 700 are sequentially disposed along the direction of the light path. In other embodiments, the heat pipe 500 may also be connected to other heat sources in the projection apparatus to dissipate heat from other heat sources.

In one embodiment, as shown in fig. 1, the casing 100 includes a cylinder 110, a portion of the inner wall of the cylinder 110 is a curved portion 101, and the heat dissipation fins 210 are stacked in the axial direction of the cylinder 110. The heat dissipation fins 210 are axially arranged along the cylinder 110 and are matched with the curved surface 101 in shape, so that the heat dissipation effect and the space utilization rate can be improved.

Specifically, as shown in fig. 1, the cylinder 110 includes a main body 111 and a split portion 112, the main body 111 is provided with a notch, the main body 111 is detachably connected to the split portion 112, when the main body 111 is connected to the split portion 112, the split portion 112 covers the notch, and the side of the split portion 112 close to the inside of the cylinder 110 is the curved surface portion 101. At least part of curved surface portion 101 is the cambered surface, and the cambered surface has corresponding center pin, and wherein, curved surface portion 101 is the cambered surface wholly. In other embodiments, the curved surface portion 101 may be another curved surface such as a wavy surface.

In addition, the heat dissipation fins 210 are stacked along the axial direction of the curved surface portion 101, and because part of the edges of the heat dissipation fins 210 is matched with the shape of the curved surface portion 101, the heat dissipation fins 210 can be matched with the curved surface portion 101 to form a channel, so that the structure is simpler, and the area of a single heat dissipation fin 210 is larger at the moment, so that the heat dissipation effect can be improved.

Alternatively, the housing 100 includes a bottom portion and a top portion that are opposite to each other, and the heat dissipation fins 210 are stacked and spaced in sequence along a direction from the bottom portion to the top portion, that is, each heat dissipation fin 210 is actually disposed in sequence along a height direction of the housing 100.

In one embodiment, there are at least two heat dissipation assemblies 200, and each heat dissipation assembly 200 is disposed along the circumferential direction of the curved surface portion 101. Different radiator unit 200 can be used to dispel the heat to different heat sources, and different radiator unit 200 work is more independent, can not influence each other, and each radiator unit 200 all matches with curved surface portion 101 simultaneously, and space utilization in to shell 100 is higher.

An embodiment discloses a projection device, which comprises the heat dissipation structure of any one of the above embodiments.

The projection device can radiate heat through the radiating fins 210, the adjacent two radiating fins 210 are arranged at intervals, air flow can conveniently pass through the space between the adjacent two radiating fins 210, so that the heat exchange efficiency of the radiating fins 210 and the air flow is improved, the curved surface part 101 in the shell 100 is not a plane, and all the radiating fins 210 are stacked along the axial direction of the curved surface part 101, so that compared with the condition that the radiating fins 210 are arranged at intervals along the circumferential direction of the curved surface part 101, the shapes of all the radiating fins 210 in the radiating structure are easier to be set to be identical or similar specifications, the processing cost can be effectively reduced, meanwhile, the shape of one side, facing the curved surface part 101, of each radiating fin 210 is matched with the shape of the curved surface part 101, the radiating fins can be better matched with the shape of the shell 100, and the space utilization rate in the shell 100 is improved.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as 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 spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

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 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; 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 skilled 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.

Claims

1. A heat dissipation structure is characterized by comprising a shell and a heat dissipation assembly, wherein the heat dissipation assembly is arranged in the shell, the inner wall of the shell comprises a curved surface part, the heat dissipation assembly comprises a plurality of heat dissipation fins, two adjacent heat dissipation fins are arranged at intervals, the shapes and the sizes of the heat dissipation fins are the same, and the shapes of the heat dissipation fins facing one side of the curved surface part are matched with the shapes of the curved surface part.

2. The heat dissipating structure of claim 1, wherein an air flow channel is formed between two adjacent heat dissipating fins, and a vent communicated with the air flow channel is provided on the curved portion.

3. The heat dissipation structure of claim 2, further comprising a fan disposed on a side of the heat dissipation fins away from the ventilation opening, wherein the ventilation opening is communicated with the air inlet or the air outlet of the fan through the air flow channel.

4. The heat dissipating structure of claim 3, wherein each of the heat dissipating fins is disposed flush with an end surface of the curved surface portion and opposite to the air inlet or the air outlet of the fan.

5. The heat dissipating structure of claim 2, wherein the heat dissipating fins are arranged in parallel.

6. The heat dissipating structure of claim 5, wherein the projections of the fins on a projection plane parallel to any of the fins overlap.

7. The heat dissipation structure of claim 1, further comprising a heat generating device disposed in the housing, wherein the heat dissipation assembly further comprises at least one heat pipe, one end of the heat pipe penetrates through the plurality of heat dissipation fins, and the other end of the heat pipe is connected to the heat generating device.

8. The heat dissipating structure of claim 1, wherein the housing includes a cylindrical body, a part of the inner wall of the cylindrical body is the curved surface portion, and the heat dissipating fins are stacked in an axial direction of the cylindrical body.

9. The heat dissipating structure of any one of claims 1 to 8, wherein there are at least two heat dissipating members, each of the heat dissipating members being disposed along a circumferential direction of the curved surface portion.

10. A projection device comprising the heat dissipation structure of any of claims 1-9.