CN215954053U

CN215954053U - Projector heat dissipation mechanism and projector

Info

Publication number: CN215954053U
Application number: CN202122213554.8U
Authority: CN
Inventors: 金凌琳; 余锋; 王超; 江正标; 李祥
Original assignee: Dangqu Network Technology Hangzhou Co Ltd
Current assignee: Dangqu Network Technology Hangzhou Co Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-03-04
Anticipated expiration: 2031-09-13

Abstract

The utility model relates to a projector heat dissipation mechanism and a projector, wherein the projector heat dissipation mechanism comprises: the side surface of the shell is penetrated and formed with a plurality of heat dissipation holes along the thickness direction; the heat dissipation device is arranged in the shell, one side of the heat dissipation device is close to the heat dissipation hole, and the other side of the heat dissipation device is connected with the optical machine and is positioned below the lens; and the fan is arranged between the heat dissipation device and the lens, wherein the air inlet of the fan faces the lens, and the air outlet of the fan faces the heat dissipation device. According to the technical scheme, the lens and the optical machine can be subjected to air-cooled heat dissipation by air flow at the same time, and the optical machine and the lens are not required to be respectively provided with heat dissipation parts, so that the overall structure is more compact, and the setting cost of the heat dissipation mechanism of the projector is reduced; and the heat dissipation path is shorter, the heat can be quickly led out, the heat dissipation efficiency is higher, and the service life of the projector is prolonged.

Description

Projector heat dissipation mechanism and projector

Technical Field

The utility model relates to the technical field of projectors, in particular to a projector heat dissipation mechanism 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 meetings, teaching and entertainment, and with the wide application of projectors and the improvement of frequency of use, higher requirements are put forward to the heat dissipation of projectors, and in the related art, the problem that the heat dissipation path is longer exists, easily causes heat to be accumulated, and the heat dissipation efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a projector heat dissipation mechanism which is short in heat dissipation path, high in heat dissipation efficiency, capable of dissipating heat of a lens and an optical machine at the same time and good in applicability.

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

a projector heat dissipation mechanism comprising:

the side surface of the shell is penetrated and formed with a plurality of heat dissipation holes along the thickness direction;

the heat dissipation device is arranged in the shell, one side of the heat dissipation device is close to the heat dissipation hole, and the other side of the heat dissipation device is connected with the optical machine and is positioned below the lens;

and the fan is arranged between the heat dissipation device and the lens, wherein the air inlet of the fan faces the lens, and the air outlet of the fan faces the heat dissipation device.

Preferably, the projector heat dissipation mechanism further includes a substrate attached to the optical machine, the heat dissipation device includes at least two heat dissipation fin sets, each of the heat dissipation fin sets includes a plurality of heat dissipation fins perpendicular to the optical machine, and the substrate is located between two adjacent heat dissipation fin sets.

Preferably, the number of the fans is two, the number of the radiating fin groups is two, and the fans are correspondingly arranged on one side, close to the lens, of each radiating fin group.

Preferably, the heat dissipation holes are long-strip-shaped, and the length direction of the heat dissipation holes is parallel to the height direction of the heat dissipation fins.

Preferably, the projector heat dissipation mechanism further comprises a heat conduction member, the heat conduction member is attached to the substrate, and two sides of the heat conduction member, which are far away from the substrate, penetrate through the heat dissipation fin groups in a one-to-one correspondence manner.

Preferably, a groove is formed in the surface of one side of the substrate, which is far away from the optical machine, and the heat conducting piece is embedded in the groove.

Preferably, the heat dissipation fin group is formed with a through hole along a width direction thereof, and the through hole is disposed corresponding to the substrate.

The utility model also provides a projector, which comprises the projector heat dissipation mechanism and the optical machine, wherein the optical machine is provided with an extension part, and one side of the heat dissipation device, which is far away from the fan, is arranged on the extension part.

Preferably, the projecting apparatus still including enclose locate outside the heat dissipation device and with the mounting bracket of ray apparatus rigid coupling, the mounting bracket with the extension corresponds the setting, the mounting bracket is kept away from one side of heat dissipation device is installed the fan, the mounting bracket along its thickness direction run through be formed with the opening that the fan air outlet corresponds the setting.

Preferably, the mounting bracket is kept away from be formed with the convex part on the side surface of heat dissipation device, the convex part is formed with the locating hole along its direction of height, the fan runs through along its direction of height to be formed with the cover and locates the outer slotted hole of convex part, the slotted hole with the locating hole intercommunication sets up, the projecting apparatus still including wear to locate the slotted hole and the retaining member that the locking is fixed in the locating hole.

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

according to the projector heat dissipation mechanism provided by the technical scheme, the heat dissipation device is arranged in the shell, the fan is arranged between the heat dissipation device and the lens, so that the heat dissipation device is connected to the optical machine and positioned below the lens, the fan is arranged between the heat dissipation device and the lens, the lens and the optical machine can be subjected to air-cooled heat dissipation at the same time, the optical machine and the lens are not required to be respectively provided with heat dissipation parts, the overall structure is more compact, and the arrangement cost of the projector heat dissipation mechanism is reduced; because the air intake of fan is towards the camera lens, and its air outlet is towards the heat abstractor, and the heat abstractor is close to the louvre, the heat dissipation route is directly outside the projecting apparatus from the louvre at last from top to bottom, and the heat dissipation route is shorter, and the heat can be quick be derived, has higher heat dissipation efficiency, prolongs the life of projecting apparatus, has better suitability.

Drawings

Fig. 1 is a schematic structural diagram of a projector according to an embodiment of the utility model;

FIG. 2 is a schematic structural view of a portion of the components of the projector shown in FIG. 1;

FIG. 3 is an exploded view of a portion of the components of the projector shown in FIG. 2;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

FIG. 5 is a schematic structural view of the heat-conducting member shown in FIG. 2;

FIG. 6 is an enlarged view of the point B shown in FIG. 3;

fig. 7 is a schematic structural view of the mounting bracket shown in fig. 2.

Description of the symbols of the drawings:

1. a housing; 11. heat dissipation holes; 2. a heat dissipating device; 21. a set of heat dissipating fins; 211. a through hole; 3. a fan; 31. a slot; 4. a substrate; 5. a heat conductive member; 51. a groove; 6. an optical machine; 61. an extension portion; 62. an installation part; 621. mounting holes; 63. a light source unit; 7. a lens; 8. a mounting frame; 81. a convex portion; 811. positioning holes; 82. an opening; 83. and (7) fixing holes.

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 and 5, an embodiment of the utility model provides a heat dissipation mechanism for a projector, including a housing 1, a heat dissipation device 2, a fan 3, a substrate 4, and a heat conduction member 5.

A plurality of heat dissipation holes 11 are formed in the side surface of the housing 1 in a penetrating manner along the thickness direction; the heat dissipation device 2 is arranged in the shell 1, one side of the heat dissipation device is close to the heat dissipation hole 11, and the other side of the heat dissipation device is connected with the optical machine 6 and is positioned below the lens 7; the fan 3 is disposed between the heat dissipation device 2 and the lens 7, wherein an air inlet of the fan 3 faces the lens 7, and an air outlet of the fan faces the heat dissipation device 2.

It should be noted that the shape of the heat dissipation holes 11 may be any form, and the arrangement of the plurality of heat dissipation holes 11 may be any form; the number of the fans 3 may be any number as necessary.

It can be understood that the heat dissipation device 2 is connected to the optical machine 6 and located below the lens 7, and the fan 3 is arranged between the heat dissipation device 2 and the lens 7, so that the lens 7 and the optical machine 6 can be cooled and dissipated by air flow at the same time, and the optical machine 6 and the lens 7 do not need to be respectively provided with heat dissipation parts, so that the overall structure is more compact, and the cost of the heat dissipation mechanism of the projector is reduced; because the air intake of fan 3 is towards camera lens 7, its air outlet is towards heat abstractor 2, and heat abstractor 2 is close to louvre 11, as shown in fig. 1, 2, the heat dissipation route is for getting into from fan 3 near camera lens 7 one side, through heat abstractor 2, then from heat abstractor 2 towards louvre 11 direction outside the projecting apparatus of loosing, the heat dissipation route is shorter, the heat can be quick be derived, has higher heat dissipation efficiency, prolongs the life of projecting apparatus.

In one embodiment, the substrate 4 is attached to the optical machine 6, the heat dissipation device 2 includes at least two heat dissipation fin sets 21, each heat dissipation fin set 21 includes a plurality of heat dissipation fins perpendicular to the optical machine 6, and the substrate 4 is located between two adjacent heat dissipation fin sets 21. In other embodiments, the number of the fin groups 21 may be three or more.

It can be understood that, as shown in fig. 3-4, in this embodiment, the substrate 4 is a rectangular parallelepiped, the substrate 4 is attached to the light source portion 63 of the optical engine 6, and by means of direct contact, the substrate 4 plays a role of buffering and temporarily storing heat transferred by the light source portion 63, and meanwhile, the substrate 4 is located below the fan 3, so that when a heat dissipation airflow passes through the substrate 4, the heat temporarily stored on the substrate 4 can be dissipated, thereby preventing a short circuit and other faults caused by that the optical engine 6 rapidly generates a large amount of heat in a short time, and being beneficial to prolonging the service life of the projector; meanwhile, as the base plate 4 is arranged between two adjacent radiating fin groups 21, the internal space of the shell 1 is saved while the radiating effect is achieved, so that the overall structure is more compact.

More specifically, as shown in fig. 2, in the present embodiment, there are two fans 3, there are two heat dissipation fin groups 21, each fan 3 is disposed on one side of each heat dissipation fin group 21 close to the lens 7, and the substrate 4 is located between the two heat dissipation fin groups 21.

As shown in fig. 3, in this embodiment, each of the heat dissipating fin sets 21 is provided with one through hole 211, and the through hole 211 is provided to accelerate heat dissipation, and at the same time, the weight of the heat dissipating fin set 21 can be reduced, so as to improve the portability of the projector.

As a preferred embodiment, the heat dissipation holes 11 are elongated, the length direction of the heat dissipation holes 11 is parallel to the height direction of each of the heat dissipation fins, as shown in fig. 1 and 2, the air outlets of two adjacent heat dissipation fins are aligned with the heat dissipation holes 11, so that the heat dissipation path is shorter, the heat dissipation is faster, and the heat dissipation efficiency is more favorably improved.

Furthermore, in order to more rapidly dissipate the heat on the substrate 4, the heat conducting member 5 is attached to the substrate 4, and two sides of the heat conducting member 5 away from the substrate 4 are correspondingly inserted into the heat dissipating fin sets 21 one by one, as shown in fig. 2-3, it can be understood that the heat conducting member 5 is in a tube shape, and the number of the heat conducting members 5 can be plural, in this embodiment, two heat conducting members 5 are provided and are arranged at intervals, the heat of the optical engine 6 and the light source 63 can be transmitted to the substrate 4, a part of the heat on the substrate 4 is transmitted to the heat dissipating fin sets 21 through the heat conducting member 5, another part of the heat is dissipated through the air flow of the fan 3 from top to bottom, the fan 3, the heat conducting member 5 and the heat dissipating fin sets 21 act together to dissipate the heat temporarily stored in the substrate 4, so that the heat on the substrate 4 can be more rapidly led out, thereby greatly improving the heat dissipation efficiency, and in addition, the heat conducting member 5 can fix the heat dissipation fins.

As a preferable embodiment, a groove 51 is formed on a side surface of the substrate 4 away from the optical device 6, and the heat conducting members 5 are embedded in the groove 51, as shown in fig. 2 and 5, in this embodiment, two grooves 51 are provided, each of the heat conducting members 5 is embedded in each of the grooves 51 in a one-to-one correspondence, and the grooves 51 have a supporting and limiting effect on the heat conducting members 5, so that the heat conducting members 5 are more stably arranged, and the grooves 51 are provided to increase a contact area between the heat conducting members 5 and the substrate 4, so that the heat dissipation efficiency is higher. In other embodiments, the recess 51 may be provided as a through hole.

The utility model also provides a projector, which comprises the projector heat dissipation mechanism, the optical machine 6, the mounting rack 8 and the bolt piece.

The ray apparatus 6 is formed with extension 61, the one side that fan 3 was kept away from to heat abstractor 2 is installed in on the extension 61, can understand, as shown in fig. 3-4, in this embodiment, extension 61 is the circular arc type, heat abstractor 2 keeps away from the shape of fan 3 one side with the shape looks adaptation of extension 61, extension 61 and ray apparatus 6 are integrated into one piece and set up, need not to realize the rigid coupling through the retaining member, simplify the mounting structure of projector still makes simultaneously projector heat dissipation mechanism more stable install in the projector.

In addition, the projecting apparatus still including enclose locate heat abstractor 2 outside and with the mounting bracket 8 of ray apparatus 6 rigid coupling, mounting bracket 8 with extension 61 corresponds the setting, mounting bracket 8 keeps away from one side of heat abstractor 2 is installed fan 3, mounting bracket 8 along its thickness direction run through be formed with the opening 82 that the air outlet of fan 3 corresponds the setting.

It can be understood that, as shown in fig. 2 and 7, the mounting bracket 8 encloses the two side surfaces and the top side of the heat dissipation device 2, and is provided with the opening 82, so that the airflow at the air outlet of the fan 3 can smoothly enter the heat dissipation device 2, the side surface of the mounting bracket 8 is provided with a through hole corresponding to the through hole 211, and is used for penetrating and fixing the through holes at the two end parts of the heat conduction device 5, and the two through holes are arranged at intervals, so that the mounting bracket 8 has a limiting effect on the two sides of the heat dissipation device 2, so that the heat dissipation device 2 can be more stably arranged on the extension part 61, and meanwhile, the upper end surface of the mounting bracket 8 can also be used for installing the fan 3, thereby improving the utilization rate of the mounting bracket 8, avoiding the need to additionally arrange a mounting structure for installing the fan 3, making the whole structure more compact, and saving the cost.

Wherein, in order to install the fan 3 on the mounting rack 8, a convex portion 81 is formed on a surface of one side of the mounting rack 8 far away from the heat sink 2, a positioning hole 811 is formed along a height direction of the convex portion 81, a slot 31 sleeved outside the convex portion 81 is formed through the fan 3 along the height direction, the slot 31 is communicated with the positioning hole 811, and the projector further comprises a locking member which is inserted into the slot 31 and the positioning hole 811 and is locked and fixed.

It can be understood that, the slotted hole 31 is sleeved outside the convex portion 81, the convex portion 81 is right the slotted hole 31 plays a positioning role, so as to prevent the fan 3 from generating relative displacement during installation, and meanwhile, the positioning hole 811 can be more conveniently aligned with the slotted hole 31, so that the installation efficiency is improved, and the locking member is arranged in the slotted hole 31 and the positioning hole 811 in a penetrating manner, so as to fixedly connect the fan 3 to the mounting frame 8.

Wherein, in order to incite somebody to action mounting bracket 8 rigid coupling in on the ray apparatus 6, as shown in fig. 2, 4, 7, be formed with installation department 62 on the ray apparatus 6, installation department 62 is formed with mounting hole 621 along its direction of height, the lateral part of mounting bracket 8 run through along its thickness direction be formed with the fixed orifices 83 of mounting hole 621 intercommunication setting, the projector is still including wearing to locate fixed orifices 83 and the fixed bolt spare of locking in the mounting hole 621 realizes ray apparatus 6 and mounting bracket 8's rigid coupling.

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. A projector heat dissipation mechanism, comprising:

a housing (1) having a plurality of heat radiation holes (11) formed through the side surface thereof in the thickness direction thereof;

the heat dissipation device (2) is arranged in the shell (1), one side of the heat dissipation device is close to the heat dissipation hole (11), and the other side of the heat dissipation device is connected with the optical machine (6) and is positioned below the lens (7);

the fan (3) is arranged between the heat dissipation device (2) and the lens (7), wherein the air inlet of the fan (3) faces the lens (7), and the air outlet of the fan faces the heat dissipation device (2).

2. The heat dissipation mechanism of claim 1, further comprising a base plate (4) attached to the optical engine (6), wherein the heat dissipation device (2) comprises at least two fin groups (21), each fin group (21) comprises a plurality of fins perpendicular to the optical engine (6), and the base plate (4) is located between two adjacent fin groups (21).

3. The heat dissipating mechanism of a projector as claimed in claim 2, wherein there are two of the fans (3), two of the heat dissipating fin sets (21), and one of the fans (3) is disposed on one side of each of the heat dissipating fin sets (21) adjacent to the lens (7).

4. The heat dissipating mechanism of a projector as claimed in claim 2, wherein the heat dissipating holes (11) are elongated, and the length direction of the heat dissipating holes (11) is parallel to the height direction of the heat dissipating fins.

5. The heat dissipation mechanism of claim 2, further comprising a heat conduction member (5), wherein the heat conduction member (5) is attached to the substrate (4), and two sides of the heat conduction member (5) away from the substrate (4) are correspondingly inserted into the heat dissipation fin sets (21) one by one.

6. The heat dissipating mechanism of a projector as claimed in claim 5, wherein a groove (51) is formed on a surface of the substrate (4) away from the optical engine (6), and the heat conducting member (5) is embedded in the groove (51).

7. The heat dissipation mechanism of a projector as claimed in claim 2, wherein the heat dissipation fin group (21) has a through hole (211) formed therethrough in the width direction thereof, the through hole (211) being provided in correspondence with the substrate (4).

8. A projector comprising the heat dissipation mechanism of any one of claims 1 to 7 and an optical machine (6), wherein the optical machine (6) is formed with an extension portion (61), and a side of the heat dissipation device (2) away from the fan (3) is mounted on the extension portion (61).

9. The projector according to claim 8, further comprising a mounting bracket (8) surrounding the heat sink (2) and fixedly connected to the optical engine (6), wherein the mounting bracket (8) is disposed corresponding to the extending portion (61), the fan (3) is installed on a side of the mounting bracket (8) away from the heat sink (2), and an opening (82) corresponding to an air outlet of the fan (3) is formed through the mounting bracket (8) along a thickness direction of the mounting bracket (8).

10. The projector according to claim 9, wherein a side surface of the mounting bracket (8) away from the heat sink (2) is formed with a protrusion (81), the protrusion (81) is formed with a positioning hole (811) along a height direction thereof, the fan (3) is formed with a slot (31) along the height direction thereof, the slot (31) is disposed to communicate with the positioning hole (811), and the projector further comprises a locking member disposed to penetrate through the slot (31) and the positioning hole (811) and locked and fixed thereto.