CN215813709U

CN215813709U - Projector heat dissipation structure and projector

Info

Publication number: CN215813709U
Application number: CN202122021040.2U
Authority: CN
Inventors: 金凌琳; 李志�; 邱昌盛
Original assignee: Dangqu Network Technology Hangzhou Co Ltd
Current assignee: Dangqu Network Technology Hangzhou Co Ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-02-11
Anticipated expiration: 2031-08-25

Abstract

The utility model relates to a projector heat dissipation structure and a projector, wherein the projector is provided with an optical machine and a PCB (printed circuit board) auxiliary plate, the heat dissipation structure comprises a ventilation assembly and a PCB heat dissipation assembly, the ventilation assembly and the PCB heat dissipation assembly are arranged around the optical machine, the ventilation assembly is arranged along the axial direction of the optical machine, and the PCB heat dissipation assembly is arranged at the lower part of the side surface of the optical machine. According to the technical scheme, the ventilation assembly is partially and directly connected to the optical machine, the optical machine and the projector are integrally cooled by air flow, the PCB heat dissipation assembly is connected to the PCB auxiliary plate, and the optical machine and the PCB auxiliary plate are conducted with heat in a direct contact mode aiming at the specific heat dissipation of the PCB auxiliary plate, so that the heat is more directly and efficiently led out, the contact surface of the PCB heat dissipation assembly is increased, the heat can be more sufficiently, uniformly and rapidly led out, the heat dissipation of the projector is effectively realized, the projector can be ensured to work stably for a long time, and the service life of the projector is prolonged.

Description

Projector heat dissipation structure and projector

Technical Field

The utility model relates to the technical field of projectors, in particular to a projector heat dissipation structure and a projector.

Background

With the continuous development of science and technology and the continuous progress of projection technology, projectors have been widely applied to places such as conferences, teaching and entertainment, and with the wide application and the improvement of use frequency of projectors, higher requirements are put forward on the heat dissipation of projectors. The existing projection heat dissipation usually adopts a heat dissipation fan to dissipate heat, so that the heat dissipation effect of parts which are not positioned at the vent of the fan is poor, heat is accumulated, and the conditions of local heating and the like are generated in the using process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a projector heat dissipation structure and a projector, and aims to solve the problems of local heat dissipation and poor heat dissipation effect of the existing projector.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a projecting apparatus heat radiation structure, is applied to the projecting apparatus that has ray apparatus and PCB subplate, heat radiation structure including encircle in ventilation assembly and the PCB heat radiation component that the ray apparatus set up, ventilation assembly follows the axial setting of ray apparatus, PCB heat radiation component set up in the side lower part of ray apparatus.

Preferably, the ventilation assembly includes a fan, a first heat dissipation module and a second heat dissipation module, the first module is disposed on one side of the optical machine, the second heat dissipation module is disposed on one side of the optical machine away from the first heat dissipation module, an air inlet channel is formed between the first heat dissipation module and the second heat dissipation module, the fan is disposed between the first heat dissipation module and the optical machine, and an air inlet of the fan faces the optical machine.

Preferably, the first heat dissipation module includes a substrate, a first heat pipe and a first fin, the substrate is disposed on one side of the optical machine facing the fan, the first fin is located on one side of an air outlet of the fan, one end of the first heat pipe is disposed on the substrate in a contact manner, and the other end of the first heat pipe is disposed on the first fin in a contact manner.

Preferably, a first groove is formed in one side, facing the fan, of the base plate, a plurality of first fins are vertically arranged at intervals, one end portion of the first heat conduction pipe is arranged in the first groove, and the other end of the first heat conduction pipe penetrates through each first fin.

Preferably, one side of the second heat dissipation module, which is far away from the optical machine, extends to form a plurality of second fins, and the second fins are vertically arranged at intervals.

Preferably, the PCB heat dissipation assembly includes a second heat pipe and heat dissipation fins, one end of the second heat pipe is fixedly connected to one side of the PCB auxiliary plate facing the optical machine, the other end of the second heat pipe penetrates through the second heat dissipation fins, the second heat dissipation fins are provided with a plurality of heat dissipation fins, and the second heat dissipation fins are arranged layer by layer at intervals.

Preferably, the ventilation assembly further comprises a mounting frame, the first heat dissipation module is sleeved with the mounting frame, a fixing column is arranged on one side of the optical machine, facing the first heat dissipation module, and the mounting frame is fixedly connected to the optical machine through the fixing column.

Preferably, the mounting bracket includes first installation department and second installation department, first installation department with the second installation department is symmetry setting and mutual joint, just first installation department with the both sides that the second installation department deviates from mutually all are equipped with the opening.

A projector, comprising:

an optical machine;

the PCB auxiliary board is connected with the optical machine;

the heat dissipation structure is the projector heat dissipation structure;

and the middle frame is covered on the projector heat dissipation structure, and heat dissipation holes are formed in positions corresponding to the projector heat dissipation structure.

Preferably, a PCB subplate is arranged below a side face of the optical machine, the PCB subplate is fixedly connected to the optical machine, the PCB heat dissipation assembly is connected to the PCB subplate, and part of the PCB heat dissipation assembly is located between the optical machine and the PCB subplate.

Compared with the prior art, the utility model has the beneficial effects that:

the projecting apparatus heat radiation structure that provides passes through ventilation assembly part lug connection in ray apparatus among the above-mentioned technical scheme, utilize the air current forced air cooling to dispel the heat to ray apparatus and projecting apparatus wholly, PCB heat radiation assembly connects in the PCB subplate, to the concrete heat dissipation of PCB subplate, mode through direct contact is to light source portion and PCB subplate heat conduction, make the more direct high efficiency of heat derive, and increase its contact surface, can make the heat more abundant, even, be derived fast, effectively realize the heat dissipation to the projecting apparatus, guarantee that the projecting apparatus can long-term stable work, the life of extension projecting apparatus.

Drawings

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

Fig. 1 is an exploded view of a projector according to an embodiment of the present invention.

Fig. 2 is an exploded view of the heat dissipation structure shown in fig. 1.

Fig. 3 is a schematic diagram of a heat dissipation structure of a projector according to an embodiment of the present invention.

Fig. 4 is a schematic view of another angle shown in fig. 3.

Fig. 5 is a schematic view of the middle frame shown in fig. 1.

Fig. 6 is a schematic view of another angle shown in fig. 5.

Description of reference numerals:

1. an optical machine; 11. a PCB sub-board; 12. fixing a column; 13. a light source unit; 2. a ventilation assembly; 21. a fan; 22. a first heat dissipation module; 221. a substrate; 2211. a first groove; 222. a first heat conductive pipe; 223. a first fin; 23. a second heat dissipation module; 231. a second fin; 24. a mounting frame; 241. a first mounting portion; 2411. a first opening; 242. a second mounting portion; 2421. a second opening; 3. a PCB heat dissipation assembly; 31. a second heat conductive pipe; 32. a heat sink; 4. heat dissipation holes; 5. a fixing member; 6. a fixing plate; 7. and (5) reinforcing ribs.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, an embodiment of the present invention provides a projector, which includes a heat dissipation structure for dissipating heat of an optical device 1 in the projector, a main circuit board disposed on a top of the optical device 1, and a PCB sub-board 11 disposed on a lower portion of a side surface of the optical device 1, so as to reduce heat generated by the projector during use, prolong a service life of the projector, and improve applicability of the projector.

Referring to fig. 2 to 5, the heat dissipation structure of the projector includes a heat dissipation assembly disposed around the optical engine 1, wherein the heat dissipation assembly includes a ventilation assembly 2 and a PCB heat dissipation assembly 3, the ventilation assembly 2 and the optical engine 1 are disposed along the same axial direction, the optical engine 1 is disposed in the ventilation assembly 2, which is beneficial for heat dissipation of the whole projector, especially the optical engine 1 and the main circuit board, the PCB heat dissipation assembly 3 is disposed at a lower portion of a side surface of the optical engine 1, and is connected to the PCB auxiliary board 11, and is mainly used for heat dissipation of the PCB auxiliary board 11.

In one embodiment, the ventilation assembly 2 includes a fan 21, a first heat dissipation module 22 and a second heat dissipation module 23, the first heat dissipation module 22 is disposed on one side of the optical apparatus 1, the fan 21 is disposed between the first heat dissipation module 22 and the optical apparatus 1, the second heat dissipation module 23 is disposed on one side of the optical apparatus 1 opposite to the first heat dissipation module 22, wherein an air inlet of the fan 21 is disposed toward the optical apparatus 1, an air outlet of the fan is disposed toward the first heat dissipation module 22, that is, an air inlet channel is formed between the first heat dissipation module 22 and the second heat dissipation module 23, and a middle frame of the projector is provided with heat dissipation holes 4 corresponding to the first heat dissipation module 22 and the second heat dissipation module 23, the formation of the air inlet channel is favorable for the overall heat dissipation of the projector, particularly, the heat dissipation effect on heat generating components such as the optical apparatus 1 and the main circuit board in the air inlet channel is significant, and the projector does not generate heat even when operating for a long time, the good working capacity of the internal working parts of the projector is ensured, and the service life of the projector is prolonged.

Wherein, the first heat dissipation module 22 includes the substrate 221, the first heat pipe 222 and the first fin 223, one side of the optical machine 1 facing the first heat dissipation module 22 is provided with the light source portion 13, the substrate 221 is fixedly connected to the light source portion 13, the first fin 223 is located on one side of the air outlet of the fan 21, one end of the first heat pipe 222 is contacted and arranged on the substrate 221, the other end is contacted and arranged on the first fin 223, the heat of the optical machine 1 and the light source portion 13 can be transferred to the substrate 221, the heat is transferred to the first fin 223 through the first heat pipe 222 to be dissipated, the substrate 221 plays a buffer temporary storage role for the heat transfer of the optical machine 1, it prevents the short circuit and other faults caused by that a large amount of heat is rapidly generated in a short time by the optical machine 1 and is not dissipated, and the fan 21 is located between the optical machine 1 and the first fin 223, thereby greatly improving the heat dissipation efficiency.

In one embodiment, in order to increase the heat dissipation efficiency, a plurality of first heat pipes 222 may be provided, a first groove 2211 is provided on a side of the substrate 221 facing the fan 21, an end portion of the first heat pipe 222 is disposed in the first groove 2211, the first groove 2211 may be disposed through the substrate 221, so as to increase the contact area between the first heat pipe 222 and the substrate 221 and increase the heat transfer efficiency; first fin 223 is equipped with a plurality ofly, and is the vertical setting in looks interval, and the other end of first heat pipe 222 runs through in each first fin 223, both can fix each first fin 223 mutually, can improve the radiating efficiency again.

Wherein, between every two first heat conduction pipes 222, the first fins 223 form a plurality of ventilation openings along the axial direction, and the acceleration heat is dissipated.

In one embodiment, the second heat dissipation module 23 is fixedly connected to a side of the optical machine 1 away from the first heat dissipation module 22, a plurality of second fins 231 are formed by extending the side of the second heat dissipation module 23 away from the optical machine 1, the second fins 231 are vertically arranged at intervals, so that the air inlet temperature can be reduced, the heat dissipation of the projector is facilitated, and the first heat dissipation module 22 is correspondingly arranged to form an air inlet channel, so as to realize the heat dissipation circulation inside the projector.

In one embodiment, a PCB sub-board 11 is arranged below one side surface of the optical machine 1, and a PCB heat dissipation assembly 3 is arranged between the PCB sub-board 11 and the optical machine 1, wherein the PCB heat dissipation assembly 3 is fixedly connected to the PCB sub-board 11; the PCB heat dissipation assembly 3 includes a second heat pipe 31 and a heat dissipation fin 32, one end of the second heat pipe 31 is fixedly connected to the PCB sub-board 11, and the other end of the second heat pipe 31 penetrates through the heat dissipation fin 32, the second heat pipe 31 is flat, so that the contact area between the second heat pipe 31 and the PCB sub-board 11 can be increased, the heat conduction is facilitated, the internal space of the projector is reduced, and the portability of the projector is improved, the part of the second heat pipe 31 connected to the PCB sub-board 11 can be arranged diagonally, and can also be annular, S-shaped, and the like, so as to increase the contact area between the second heat pipe 31 and the PCB sub-board 11; the plurality of radiating fins 32 are arranged at intervals layer by layer and are positioned on the side surface of the fan 21, so that double radiating of conduction radiating and air cooling radiating is realized.

In one embodiment, the ventilation assembly 2 further includes a mounting frame 24, the mounting frame 24 is sleeved on the first heat dissipation module 22 to increase the stability of the first heat dissipation module 22, a fixing post 12 is disposed on a side of the optical engine 1 facing the mounting frame 24, the mounting frame 24 is fixedly connected to the optical engine 1 through the fixing post 12, wherein the mounting bracket 24 includes a first mounting portion 241 and a second mounting portion 242, the first mounting portion 241 and the second mounting portion 242 are symmetrically disposed, and are clamped with each other, a first opening 2411 is disposed on one side of the first installation part 241 departing from the second installation part 242, a bending part of the first heat conduction pipe 222 is disposed at the first opening 2411 to facilitate air cooling and heat dissipation of the first heat conduction pipe 222, a second opening 2421 is disposed on one side of the second installation part 242 departing from the first installation part 241, so that the fan 21, the second opening 2421 and the PCB heat dissipation assembly 3 directly form an air cooling channel, and the cooling of the PCB sub-board 11 is accelerated.

In one embodiment, the fixing member 5 extends from one side of the second mounting portion 242 away from the first mounting portion 241, the fixing plate 6 is disposed above the heat sink 32, and the fixing plate 6 is fixedly connected to the fixing member 5, so that the stability of the PCB heat sink assembly 3 is increased.

The first mounting portion 241 and the second mounting portion 242 are provided with the reinforcing ribs 7, so that the mechanical strength of the mounting frame 24 is improved, and the stability of the projector is improved.

The projecting apparatus heat radiation structure that above-mentioned technical scheme provided, including ventilation unit 2 and PCB heat radiation unit 3, wherein 2 partial lug connection in ray apparatus 1 of ventilation unit, utilize the air current forced air cooling to dispel the heat to ray apparatus 1 and projecting apparatus are whole, PCB heat radiation unit 3 is connected in PCB subplate 11, to the specific heat dissipation of PCB subplate 11, mode through direct contact is to ray apparatus 1 and 11 heat conductivities of PCB subplate, make the more direct high-efficient derivation of heat, and increase its contact surface, can make the heat more abundant, even, be derived fast, effectively realize the heat dissipation to the projecting apparatus, guarantee that the projecting apparatus can long-term stable work, the life of extension projecting apparatus.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a projecting apparatus heat radiation structure, is applied to the projecting apparatus that has ray apparatus (1) and PCB subplate (11), its characterized in that, heat radiation structure including surround in ventilation module (2) and PCB heat radiation component (3) that ray apparatus (1) set up, ventilation module (2) are followed the axial setting of ray apparatus (1), PCB heat radiation component (3) set up in the side lower part of ray apparatus (1).

2. The heat dissipation structure of projector as claimed in claim 1, wherein the ventilation assembly (2) comprises a fan (21), a first heat dissipation module (22) and a second heat dissipation module (23), the first heat dissipation module (22) is disposed on one side of the optical machine (1), the second heat dissipation module (23) is disposed on one side of the optical machine (1) away from the first heat dissipation module (22), an air inlet channel is formed between the first heat dissipation module (22) and the second heat dissipation module (23), the fan (21) is disposed between the first heat dissipation module (22) and the optical machine (1), and an air inlet of the fan (21) is disposed toward the optical machine (1).

3. The heat dissipation structure of projector as claimed in claim 2, wherein the first heat dissipation module (22) comprises a substrate (221), a first heat pipe (222), and a first fin (223), the substrate (221) is disposed on a side of the optical machine (1) facing the fan (21), the first fin (223) is disposed on a side of an air outlet of the fan (21), one end of the first heat pipe (222) is disposed in contact with the substrate (221), and the other end of the first heat pipe is disposed in contact with the first fin (223).

4. The heat dissipation structure of claim 3, wherein a first groove (2211) is formed in a side of the base plate (221) facing the fan (21), the first fins (223) are vertically arranged at intervals, one end of the first heat pipe (222) is partially arranged in the first groove (2211), and the other end of the first heat pipe penetrates through each first fin (223).

5. The heat dissipation structure of the projector as claimed in claim 2, wherein a side of the second heat dissipation module (23) facing away from the optical engine (1) extends with a plurality of second fins (231), and the second fins (231) are vertically arranged at intervals.

6. The heat dissipation structure of the projector according to claim 1, wherein the PCB heat dissipation assembly (3) includes a second heat pipe (31) and a plurality of heat dissipation fins (32), one end of the second heat pipe (31) is fixedly connected to a side of the PCB sub-board (11) facing the optical engine (1), and the other end of the second heat pipe passes through the heat dissipation fins (32), the plurality of heat dissipation fins (32) are arranged in layers at intervals.

7. The heat dissipation structure of projector as claimed in claim 2, wherein the ventilation assembly (2) further comprises a mounting frame (24), the mounting frame (24) is sleeved on the first heat dissipation module (22), a fixing pillar (12) is disposed on a side of the optical machine (1) facing the first heat dissipation module (22), and the mounting frame (24) is fixedly connected to the optical machine (1) through the fixing pillar (12).

8. The heat dissipation structure of the projector as claimed in claim 7, wherein the mounting frame (24) comprises a first mounting part (241) and a second mounting part (242), the first mounting part (241) and the second mounting part (242) are symmetrically arranged and clamped with each other, and the first mounting part (241) and the second mounting part (242) are provided with openings at two sides facing away from each other.

9. A projector, characterized by comprising:

an optical machine (1);

a PCB sub-board (11) connected to the optical machine (1);

a heat dissipation structure that is the projector heat dissipation structure of any one of claims 1 to 8;

the middle frame is covered on the projector heat dissipation structure, and heat dissipation holes (4) are arranged at positions corresponding to the projector heat dissipation structure.

10. A projector as claimed in claim 9, characterized in that the PCB sub-board (11) is fixedly connected to the optical engine (1) below a side of the optical engine (1), and the PCB heat sink assembly (3) is connected to the PCB sub-board (11) and partly between the optical engine (1) and the PCB sub-board (11).