CN217178456U

CN217178456U - Heat dissipation device and lamp with same

Info

Publication number: CN217178456U
Application number: CN202220550875.9U
Authority: CN
Inventors: 廖易仑; 莫德仪; 苏晓
Original assignee: Guilin Zhishen Information Technology Co Ltd
Current assignee: Guilin Zhishen Information Technology Co Ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-08-12
Anticipated expiration: 2032-03-14

Abstract

The utility model relates to a heat dissipation technical field, more specifically relates to a heat abstractor and have its lamps and lanterns, including the radiator, install the motor on the radiator and be used for the radiating centrifugal fan of radiator, centrifugal fan installs on the output shaft of motor, and the radiator is ring shape, has a plurality of fin on the radiator, and a plurality of fin are formed with the radiating air duct along the radial even arrangement of radiator between the two adjacent fins, and centrifugal fan's flabellum encircles and arranges outside the external diameter of radiator. The flabellum of centrifugal fan is located the periphery of radiator, and centrifugal fan's flabellum promotes the outside air and enters into the fin along the axis direction of output shaft, and the outside air flows into in the heat dissipation wind channel and carries out the heat exchange with the fin from the fin top promptly, and the air that carries out the heat exchange with the fin flows out from the heat dissipation wind channel along the direction with the output shaft looks vertically of motor for the fin homoenergetic on the radiator can carry out the heat exchange with the air that enters into in the heat dissipation wind channel, improves the radiating efficiency.

Description

Heat dissipation device and lamp with same

Technical Field

The utility model relates to a heat dissipation technical field, more specifically relates to a heat abstractor and have its lamps and lanterns.

Background

At present, all radiators in the market adopt a mode that a radiating fan is arranged on the upper part and radiating fins are arranged on the lower part to radiate heat. Because the heat dissipation fan is located above the heat sink, the heat dissipation fan rotates to promote air flow, and a part of the heat dissipation fins on the heat sink have the problem that no air flows through and exchanges heat with the heat dissipation fins, so that the heat dissipation effect of the heat sink is poor. Japanese patent application, publication No. JP2004063686A, discloses a heat sink in which a heat radiation fan is also located above the heat sink, and also has a problem of poor heat radiation effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome among the prior art problem that the radiator has the radiating effect not good, provide a heat abstractor.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a heat abstractor, includes the radiator, installs motor on the radiator and be used for right the radiating centrifugal fan of radiator, centrifugal fan installs on the output shaft of motor, the radiator is ring shape, a plurality of fin have on the radiator, a plurality of fin are along the radial even arrangement of radiator, are formed with the heat dissipation wind channel between two adjacent fin, centrifugal fan's flabellum encircles and arranges outside the external diameter of radiator.

In this technical scheme, the heat source transmits to the radiator, because centrifugal fan's flabellum encircles and arranges outside the external diameter of radiator, when centrifugal fan rotated, centrifugal fan's flabellum drove the outside air and enters into the fin along the axis direction of output shaft, outside air flows into to the heat dissipation wind channel and carries out the heat exchange with the fin from the fin top promptly, under centrifugal fan's effect, the air that carries out the heat exchange with the fin flows out from the heat dissipation wind channel along the direction mutually perpendicular with the output shaft of motor, make like this that the fin homoenergetic on the radiator can carry out the heat exchange with the air that enters into in the heat dissipation wind channel, thereby the radiating efficiency of radiator has been improved.

Preferably, a flow guide cover is further arranged above the radiating fins, an air inlet for air to enter the radiating air duct is formed in the flow guide cover, and an air outlet is formed between two adjacent fan blades on the centrifugal fan. In the technical scheme, the air guide sleeve is arranged above the radiating fins, the air inlet is formed in the air guide sleeve, and when the centrifugal fan rotates, external air can only enter the radiating air channel from the air inlet, so that air entering the radiating air channel can flow to each radiating fin of the radiator and exchange heat with the radiating fins, and the radiating efficiency of the radiator is improved.

Preferably, the centrifugal fan is connected with a plurality of spokes with one end connected with the spokes, the other end of each spoke is connected with a mounting seat, and the mounting seat is mounted on an output shaft of the motor. In this technical scheme, the motor drives the mount pad and rotates, and the mount pad drives spoke and centrifugal fan that link to each other and rotates to make the centrifugal fan of arranging in the radiator periphery can be rotatory round the radiator, make during external air enters into the radiator along the axial, and flow out the radiator along radial direction.

Preferably, the centrifugal fan comprises a mounting plate of an annular structure and a plurality of fan blades mounted on the mounting plate, and the mounting plate is connected with the spokes. In this technical scheme, the installation piece links to each other with the spoke, and when the motor drove mount pad, spoke and rotated, the spoke can drive the flabellum of installing on the installation piece and rotate, and the installation piece can be connected a plurality of flabellums on same installation piece, plays the purpose of fixed mounting flabellum.

Preferably, the fan blades are vertically attached to the mounting plate. Therefore, under the action of the motor, outside air enters the heat dissipation air duct from the upper part of the heat dissipation fins along the direction vertical to the output shaft of the motor and then flows out along the direction vertical to the output shaft of the motor.

Preferably, the air outlet is formed between the mounting plate and two adjacent fan blades. In this technical scheme, the air that carries out the heat exchange with the radiator flows out from the air outlet along the direction of perpendicular to motor output shaft.

Preferably, the air guide sleeve is of a conical structure and is installed above the radiator through a support piece, and the air inlet is formed in the top of the air guide sleeve. Therefore, the air flow generated by the centrifugal fan can be forced to flow in through the center of the radiator as much as possible and flow out from the periphery of the centrifugal fan after flowing through all the radiating fins, and therefore the gap between the inner side of the fan blade of the centrifugal fan close to the radiating fins and the outer ring of the air guide sleeve is required to be as small as possible. The air inlet is formed at the top of the air guide sleeve, so that outside air can enter the heat dissipation air channel from the center of the top of the air guide sleeve, and can completely flow through the whole radiator, and a better heat dissipation effect is achieved.

Preferably, the radiator further comprises a bottom plate, the radiating fins are installed on the bottom plate, a support is arranged on the bottom plate, and the motor is installed on the support.

Preferably, the support includes support column and mounting panel, the one end of support column with the bottom plate links to each other, the other end with the mounting panel links to each other, the motor is installed on the mounting panel, be provided with hollow out construction on the mounting panel. In this technical scheme, because the mounting panel is hollow out construction, can make outside air enter into to the air intake from this hollow out construction like this.

The utility model discloses another aspect provides a lamp, including light source and above heat abstractor, the light source setting is kept away from on the side of motor at the radiator.

Compared with the prior art, the beneficial effects of the utility model are that: the heat source transmits to the radiator, because centrifugal fan's flabellum encircles and arranges outside the external diameter of radiator, when centrifugal fan rotated, centrifugal fan's flabellum drove the outside air and enters into the fin along the axis direction of output shaft, outside air flows into to the heat dissipation wind channel and carries out the heat exchange with the fin from the fin top promptly, under centrifugal fan's effect, the air that carries out the heat exchange with the fin flows out from the heat dissipation wind channel along the direction mutually perpendicular with the output shaft of motor, make like this that the fin homoenergetic on the radiator can carry out the heat exchange with the air that enters into the heat dissipation wind channel, thereby the radiating efficiency of radiator has been improved.

Drawings

Fig. 1 is a perspective view of the heat dissipating device of the present invention;

FIG. 2 is a schematic structural view of the heat dissipating device of the present invention with the air guide sleeve removed;

fig. 3 is a schematic view of a connection structure between a heat sink and a bracket in the heat dissipation device of the present invention.

In the drawings: 1. a heat sink; 2. a motor; 3. a centrifugal fan; 4. a heat dissipation air duct; 5. a pod; 6. an air inlet; 7. an air outlet; 8. spokes; 9. a mounting seat; 10. a support; 11. a heat sink; 12. a base plate; 13. a support member; 31. mounting a sheet; 32. a fan blade; 101. a support pillar; 102. mounting a plate; 103. and a hollow structure.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.

Example 1

As shown in fig. 2 and 3, a heat dissipation device includes a heat sink 1, a motor 2 mounted on the heat sink 1, and a centrifugal fan 3 for dissipating heat from the heat sink 1, wherein the centrifugal fan 3 is mounted on an output shaft of the motor 2, the heat sink 1 is annular, the heat sink 1 is provided with a plurality of heat dissipation fins 11, the plurality of heat dissipation fins 11 are uniformly arranged along a radial direction of the heat sink 1, a heat dissipation air duct 4 is formed between two adjacent heat dissipation fins 11, and fan blades of the centrifugal fan 3 are arranged around an outer diameter of the heat sink 1. In this embodiment, the heat source is transferred to the heat sink 1, because the fan blades of the centrifugal fan 3 are arranged outside the outer diameter of the heat sink 1 in a surrounding manner, when the centrifugal fan 3 rotates, the fan blades 32 of the centrifugal fan 3 push the external air to enter the heat dissipation fins 11 along the axial direction of the output shaft, that is, the external air flows into the heat dissipation air duct 4 from above the heat dissipation fins 11 and exchanges heat with the heat dissipation fins 11, and under the action of the centrifugal fan 3, the air after exchanging heat with the heat dissipation fins 11 flows out from the heat dissipation air duct along the direction perpendicular to the output shaft of the motor 2, so that the heat dissipation fins 11 on the heat sink 1 can exchange heat with the air entering the heat dissipation air duct 4, and the heat dissipation efficiency of the heat sink 1 is improved. The heat source is a device that generates heat during operation, and may be a light source, or a device that requires heat dissipation, such as a CPU, and is generally mounted on a side surface of the heat sink 1 away from the motor 2. When the heat source is a light source, the light source may be mounted on the aluminum substrate before the aluminum substrate is mounted on the heat sink 1 when the light source is mounted on the heat sink 1. When the heat source is a CPU, heat-conducting silicone grease can be smeared between the CPU and the radiator 1. It should be noted that the centrifugal fan 3 is located at the periphery of the heat dissipation fins 11, and when the centrifugal fan 3 rotates, the centrifugal fan 3 rotates around the heat dissipation fins 11 inside the centrifugal fan 3, so that the air that is located in the heat dissipation air duct 4 and exchanges heat with the heat dissipation fins 11 can be discharged from the heat dissipation air duct 4.

Example 2

As shown in fig. 1 and 3, the difference from embodiment 1 is that a wind deflector 5 is further disposed above the heat sink 11, an air inlet 6 for air to enter the heat dissipation air duct 4 is disposed on the wind deflector 5, and an air outlet 7 is formed between two adjacent blades 32 on the centrifugal fan 3. In this embodiment, since the air guide sleeve 5 is disposed above the heat dissipation fins 11, and the air inlet 6 is disposed on the air guide sleeve 5, when the centrifugal fan 3 rotates, the external air can only enter the heat dissipation air duct 4 from the air inlet 6, so that the air entering the heat dissipation air duct 4 flows onto each heat dissipation fin 11 of the heat dissipation device 1 and exchanges heat with the heat dissipation fin 11, thereby improving the heat dissipation efficiency of the heat dissipation device 1. The air after heat exchange with the heat sink 11 finally flows out of the outlet 7. The blades of the centrifugal fan 3 are located on the outer periphery of the heat radiating fins 11, the heat radiating fins 11 are located inside the centrifugal fan 3, and when the centrifugal fan 3 rotates, the centrifugal fan 3 rotates around the plurality of heat radiating fins 11.

As shown in fig. 1 and 2, the centrifugal fan 3 is connected with a plurality of spokes 8 with one end connected with the spokes, the other end of each spoke 8 is connected with a mounting seat 9, and the mounting seat 9 is mounted on the output shaft of the motor 2. In this embodiment, the motor 2 drives the mounting seat 9 to rotate, and the mounting seat 9 drives the spokes 8 and the centrifugal fan 3 connected thereto to rotate, so that the centrifugal fan 3 arranged at the periphery of the heat sink 1 can rotate around the heat sink 1, and outside air is forced to enter the heat sink 1 along the axial direction and flow out of the heat sink 1 along the radial direction. It should be noted that the spokes 8 are inclined downward along the end connected to the mounting seat 9 toward the end connected to the centrifugal fan 3, so that the spokes 8 are connected to the centrifugal fan 3 provided outside the heat sink 11.

As shown in fig. 1 and 2, the centrifugal fan 3 includes a mounting plate 31 having an annular structure and a plurality of fan blades 32 mounted on the mounting plate 31, and the mounting plate 31 is connected to the spokes 8. In this embodiment, the mounting plate 31 is connected with the spoke 8, when the motor 2 drives the mounting base 9 and the spoke 8 to rotate, the spoke 8 can drive the fan blades 32 installed on the mounting plate 31 to rotate, and the mounting plate 31 can connect a plurality of fan blades 32 on the same mounting plate 32, so as to achieve the purpose of fixedly installing the fan blades 32. It should be noted that, the mounting plate 31 is in a ring structure, and the inside of the mounting plate 32 is hollow, so that the heat sink 1 can be conveniently mounted in the hollow, and the motor 2 drives the spokes 8 and the mounting plate 31 to rotate, so that the fan blades 32 connected to the mounting plate 31 can rotate around the heat dissipation fins 11 on the heat sink 1. It should be noted that, the distance between the mounting plate 31 and the bottom of the heat sink 1 is preferably greater than or equal to the longitudinal height of the heat sink 32, so that the longitudinal height of the fan blades 32 connected to the mounting plate 31 can cover the longitudinal height of the heat sink 32, thereby improving the heat dissipation effect of the heat sink 32. It should be noted that the gap between the mounting plate 31 and the outer periphery of the airflow guide cover 5 should be as small as possible to prevent air from escaping from the gap, and when the spoke 8 drives the mounting plate 31 to rotate around the radiator 1, no friction is generated between the mounting plate 31 and the airflow guide cover 5.

As shown in fig. 1 and 2, the fan blades 32 are vertically connected to the mounting plate 31. This makes it possible for the outside air to enter the heat dissipation air duct 4 from above the heat dissipation fins 11 in a direction perpendicular to the output shaft of the motor 2 and then to flow out in a direction perpendicular to the output shaft of the motor 2 under the action of the motor 2.

As shown in fig. 1 and 2, the air outlet 7 is formed between the mounting piece 31 and two adjacent blades 32. In the present embodiment, the air heat-exchanged with the radiator 1 flows out from the air outlet 7 in a direction perpendicular to the output shaft of the motor 2.

As shown in fig. 1 and 2, the air guide sleeve 5 is of a conical structure, the air guide sleeve 5 is mounted above the heat sink 1 through a support 13, and the air inlet 6 is formed at the top of the air guide sleeve 5. In this embodiment, the airflow generated by the centrifugal fan 3 is forced to flow in through the center of the heat sink 1 as much as possible, and flow out from the outer periphery of the centrifugal fan 3 after flowing through all the heat dissipation fins 11, so the gap between the inner side of the fan blade 32 of the centrifugal fan 3 close to the heat dissipation fins 11 and the outer ring of the air guide sleeve 5 should be as small as possible. The air inlet 6 is formed at the top of the air guide sleeve 5, so that outside air can enter the heat dissipation air duct 4 from the center of the top of the air guide sleeve 5, and the outside air can completely flow through the whole radiator 1, thereby achieving a better heat dissipation effect. In this embodiment, it should be noted that, since the spokes 8 are inclined downward along the end connected to the mounting seat 9 toward the end connected to the centrifugal fan 3, the air guide sleeve 5 is in a conical structure, and the structure is configured such that the air guide sleeve 5 can be adapted to the shape of the spokes 8. It should be noted that the air inlet 6 is preferably disposed at the center of the top of the air guide sleeve 5, so that after the outside air enters the heat dissipation air duct 4 from the air inlet 6, the outside air can perform heat exchange with the heat dissipation fins 11 more uniformly, and the heat dissipation effect of the heat sink 1 is more uniform. In addition, it should be noted that one end of the supporting member 13 is connected to the bottom of the heat sink 1, and the other end is connected to the pod 5, and the pod 5 is fixed by the supporting member 13, so that the pod 5 is installed above the heat sink 11. The support member 13 may be a rod-like structure, or may be another structure that can support and fix the pod 5.

As shown in fig. 3, the heat sink 1 further includes a bottom plate 12, the heat sink 11 is mounted on the bottom plate 12, a bracket 10 is disposed on the bottom plate 12, and the motor 2 is mounted on the bracket 10.

As shown in fig. 3, the bracket 10 includes a supporting column 101 and a mounting plate 102, one end of the supporting column 101 is connected to the bottom plate 12, the other end is connected to the mounting plate 102, the motor 2 is mounted on the mounting plate 102, and the mounting plate 102 is provided with a hollow structure 103. In this embodiment, since the mounting plate 102 has the hollow structure 103, the external air can enter the air inlet 6 from the hollow structure 103.

Example 3

A lamp comprising a light source and a heat sink as in embodiment 1 or embodiment 2, the light source being disposed on a side of the heat sink 1 remote from the motor 2.

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 orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered 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, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. 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.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A heat dissipation device, characterized in that: including radiator (1), install motor (2) on radiator (1) and be used for right radiator (1) radiating centrifugal fan (3), centrifugal fan (3) are installed on the output shaft of motor (2), radiator (1) is ring shape, a plurality of fin (11) have on radiator (1), and radial even the arranging of radiator (1) is followed in a plurality of fin (11), is formed with radiating air duct (4) between two adjacent fin (11), the flabellum of centrifugal fan (3) encircles the flabellum and arranges outside the external diameter of radiator (1).

2. The heat dissipating device of claim 1, wherein: the fan is characterized in that a flow guide cover (5) is further arranged above the radiating fins (11), an air inlet (6) for air to enter the radiating air duct (4) is formed in the flow guide cover (5), and an air outlet (7) is formed between two adjacent fan blades (32) on the centrifugal fan (3).

3. The heat dissipating device of claim 2, wherein: the centrifugal fan (3) is connected with a plurality of spokes (8) with one ends connected with the spokes, the other ends of the spokes (8) are connected with mounting seats (9), and the mounting seats (9) are mounted on an output shaft of the motor (2).

4. The heat dissipating device of claim 3, wherein: the centrifugal fan (3) comprises an installation sheet (31) of an annular structure and a plurality of fan blades (32) installed on the installation sheet (31), and the installation sheet (31) is connected with the spokes (8).

5. The heat dissipating device of claim 4, wherein: the fan blades (32) are vertically connected to the mounting plate (31).

6. The heat dissipating device of claim 5, wherein: the air outlet (7) is formed between the mounting piece (31) and the two adjacent fan blades (32).

7. The heat dissipating device of claim 2, wherein: the air guide sleeve (5) is of a conical structure, the air guide sleeve (5) is installed above the radiator (1) through a supporting piece (13), and the air inlet (6) is formed in the top of the air guide sleeve (5).

8. The heat dissipating device of claim 1, wherein: the radiator (1) further comprises a bottom plate (12), the radiating fins (11) are installed on the bottom plate (12), a support (10) is arranged on the bottom plate (12), and the motor (2) is installed on the support (10).

9. The heat dissipating device of claim 8, wherein: the support (10) comprises a support column (101) and a mounting plate (102), one end of the support column (101) is connected with the bottom plate (12), the other end of the support column is connected with the mounting plate (102), the motor (2) is mounted on the mounting plate (102), and a hollow structure (103) is arranged on the mounting plate (102).

10. A light fixture, characterized by: comprising a light source arranged on a side of the heat sink (1) remote from the electric machine (2), and a heat sink according to any of claims 1 to 9.