CN114543056B - Heat abstractor and heat dissipation lamps and lanterns - Google Patents
Heat abstractor and heat dissipation lamps and lanterns Download PDFInfo
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- CN114543056B CN114543056B CN202210082600.1A CN202210082600A CN114543056B CN 114543056 B CN114543056 B CN 114543056B CN 202210082600 A CN202210082600 A CN 202210082600A CN 114543056 B CN114543056 B CN 114543056B
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- fan
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 161
- 241001465382 Physalis alkekengi Species 0.000 title description 2
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000011324 bead Substances 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 description 34
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 241000883990 Flabellum Species 0.000 description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004069 differentiation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000191 radiation effect Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
- F21V29/677—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for discharging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
Abstract
The invention relates to the technical field of heat dissipation structures, in particular to a heat dissipation device and a heat dissipation lamp. The sectional heat dissipation structure enables the air inlet speed and the air outlet speed to be more approximate, so that howling caused by the difference of the air speeds of air flowing through the heat dissipation structure can be reduced, and noise is reduced; the fan is arranged at the subsection of the heat dissipation structure, so that the heat emitted by the heat dissipation structure can be rapidly discharged, and the heat dissipation efficiency of the heat dissipation device is improved; the invention has higher heat dissipation efficiency without using heat pipes and refrigerants, realizes heat discharge by the heat dissipation structure and the fan, and has light weight, small volume and convenient carrying.
Description
Technical Field
The invention relates to the technical field of heat dissipation structures, in particular to a heat dissipation device and a heat dissipation lamp.
Background
The radiator is used for reducing heat generated when the equipment is operated, so that the mechanical equipment is used for radiating and refrigerating to prolong the service life of the mechanical operation, and the radiating efficiency of the radiator directly influences the service life of the mechanical equipment. In addition, in order to improve the heat dissipation efficiency, a technical means is often adopted to increase the contact area between the heat sink and the heat, or to increase the speed of the fan blade group to increase the air flow rate, however: the former increases the area of the heat dissipation device and limits the application of the heat dissipation device in the heat dissipation field of certain precision equipment; which increases the noise caused by the air flowing over the fins and increases the cost of use.
As disclosed in chinese patent, a lamp radiator includes a refrigerant tube extending in a height direction and divided into a first section and a second section; the refrigerant pipe is internally provided with a heat conduction channel filled with liquid working medium; the first radiating fin assembly is in a ring shape and is provided with a cross-connection hole extending along the height direction, the cross-connection hole is used for fixedly cross-connecting the second section of the refrigerant pipe, and the first radiating fin assembly comprises a plurality of first radiating fin units; a second fin assembly comprising a plurality of radially extending and circumferentially arrayed first fin units; and the fan is used for radiating air and blowing heat for the first radiating fin assembly and the second radiating fin assembly. The above scheme can rapidly remove the heat generated by the light-emitting unit and prolong the service life of the light-emitting unit, however, the above scheme adopts the refrigerant as the liquid working medium to cause the increase of the quality and the volume of the lamp, and is inconvenient to carry, and in the above scheme, the first radiating fin assemblies are arranged in the height direction, the second radiating fin assemblies radially extend and are in a circumferential array, which can cause the increase of the speed difference of the air inlet and the air outlet and the increase of the noise.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the heat radiating device and the heat radiating lamp, which have the advantages of high heat radiating efficiency, small volume, light weight and portability, and can reduce the wind speed difference between the air inlet and the air outlet and reduce noise.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a heat abstractor, includes support frame, fan and a plurality of heat radiation structure, the fan includes the flabellum group of constituteing by multiunit flabellum and installs in the driver of support frame, the end connection of flabellum group has the mounting panel, the mounting panel is connected with the driver, a plurality of heat radiation structure install in the support frame, and a plurality of heat radiation structure centers on the support frame axis forms two annular structures at least, the flabellum group is located between two adjacent annular structures.
According to the heat dissipation device, a heat dissipation structure is of a sectional design, and a fan is arranged at a sectional position of the heat dissipation structure: the sectional heat dissipation structure enables the air inlet speed and the air outlet speed to be more approximate, so that howling caused by the difference of the wind speeds of air flowing through the heat dissipation structure can be reduced, and noise is reduced; the fan is arranged at the subsection of the heat dissipation structure, so that heat emitted by the heat dissipation structure can be rapidly discharged, and the heat dissipation efficiency of the heat dissipation device is improved. In addition, the heat radiating device has higher heat radiating efficiency without using a heat pipe and a refrigerant, and the heat radiating structure and the fan realize heat discharge, so that the heat radiating device has light weight, small volume and convenient carrying.
Further, the plurality of heat dissipation structures surround at least two annular structures, the fan blade sets are at least two groups, the fan blade sets are annular, at least one group of fan blade sets are located between adjacent annular structures, and the fan blade sets are connected to the same driver and rotate in the same direction and at the same speed. When the fan blade sets are two groups, one fan blade set is positioned between the two annular structures, the other fan blade set is positioned at the inner ring of one annular structure, or is positioned at the outer ring of the other annular structure, or is also positioned between the two adjacent annular structures, and at least two fan blade sets are arranged, so that heat of the heat dissipation structure can be quickly taken away, and the heat dissipation efficiency is effectively improved; the two fan blade groups synchronously rotate, so that the structure of the fan can be simplified, and the manufacturing cost of the heat radiating device can be reduced.
Further, the mounting plates of each fan blade group are connected with connecting pieces, the connecting pieces are connected with a driving plate, and the driving plate is connected with a driver. The mounting plate is of an annular structure, a plurality of connecting pieces are uniformly connected to the annular structure, the connecting pieces are connected with the driving plate, and the specific connection mode can be detachable connection so as to facilitate the assembly and disassembly of the fan blade group; the driving plate is connected with the driver, so that the central axes of the driving plate and the driver are convenient to grasp and coincide, the mounting difficulty is reduced, and the driving stability is improved.
Further, the plurality of heat dissipation structures surround at least two annular structures, the fan blade groups are at least two groups, the fan blade groups are annular, at least one group of fan blade groups are positioned between adjacent heat dissipation structures, and each group of fan blade groups can rotate in different directions and/or at different speeds. When the fan blade sets are two groups, one fan blade set is positioned between the two annular structures, the other fan blade set is positioned at the inner ring of one annular structure or at the outer ring of the other annular structure, and at least two fan blade sets are arranged, so that heat of the heat dissipation structure can be taken away rapidly, and the heat dissipation efficiency is improved effectively; the direction and the speed of each fan blade group can be adjusted according to the needs, so that the air speed and the air flow in the air duct can be controlled more accurately, the air inlet speed and the air outlet speed are kept to be nearly consistent, and higher heat dissipation efficiency and lower noise are realized.
Further, each fan blade group is connected to a respective group of drivers, or each fan blade group is connected to the same group of drivers through a transmission mechanism with different transmission ratios, or a combination of the two driving modes. When each fan blade group is connected with the respective driver, the rotating speed and the steering of each fan blade group can be conveniently and accurately controlled, and the fan blade group can be suitable for the field of precise heat dissipation; when the same driver is adopted, the different wind speeds and the different steering of each group of fan blade groups are realized through the transmission mechanisms with different transmission ratios, the fan blade groups can realize the differentiation of the wind speeds and the steering of each fan blade group, and the fan blade group is easy to realize and has wider application range.
Further, the end parts of the plurality of heat dissipation structures are connected with a connecting plate, an air inlet hole is formed in the center of the connecting plate, and the fan is a centrifugal fan and discharges air entering from the air inlet hole to the centrifugal direction. The connecting plate can be connected to one end of the heat radiation structure, the connecting plates can be connected to two ends of the heat radiation structure, the air inlet holes can be formed in one end of the heat radiation structure, the air inlet holes can be formed in two ends of the heat radiation structure, the air inlet directions are affected by different positions of the air inlet holes, and air entering from the air inlet holes can be centrifugally discharged under the action of the centrifugal fan no matter from one end or the air inlet holes at two ends.
Further, the heat dissipation structure is a cylindrical structure, central axes of the cylindrical structures are parallel, a plurality of groups of circular ring structures are formed around the central axes, and the heat dissipation structures on the circular ring structures are uniformly distributed. When the heat radiation structure is a cylindrical structure, the shape and the size of all cylindrical structures are consistent, the sectional arrangement of the heat radiation structure can be realized only by adjusting the position of the heat radiation structure, the structure is simple, the production cost is low, and the heat radiation effect and the noise reduction effect are better.
Further, the heat dissipation structure is a sheet structure, a plurality of sheet structures surround and form at least two groups of annular structures, and flow distribution plates are arranged between adjacent heat dissipation structures of the annular structures. The upper sheet structures of the two circular ring structures are formed by breaking continuous sheet structures, the continuous sheet structures can be linear structures, oblique line structures or arc structures, and the design of the splitter plates is used for homogenizing wind speeds at different positions in the air duct and avoiding noise.
Further, the heat dissipation structure is a sheet structure, a plurality of sheet structures surround the heat dissipation structure forming at least three groups of annular structures, and the heat dissipation structures of the inner and outer ring annular structures are arranged along the radial direction, wherein the radial line of one ring of sheet structures is positioned between the radial lines of two adjacent groups of sheet structures on the adjacent rings. The continuous sheet-shaped structures are broken, the heat dissipation structures on the adjacent rings are staggered, and the heat dissipation structure of one ring of the annular structures plays a role in shunting the heat dissipation structure of the next ring of the annular structures along the air inlet direction, so that the contact area of air and the heat dissipation fins can be increased, and the heat dissipation efficiency is improved; on one hand, the wind speed at different positions in the air duct can be uniform, and noise is avoided.
The invention also provides a heat dissipation lamp, which comprises a plurality of lamp beads and the heat dissipation device, wherein the lamp beads are arranged on one surface of the heat dissipation device, which is away from the fan.
The heat dissipation device has the advantages of high heat dissipation efficiency, low noise, light weight, small volume and portability, and the heat dissipation lamp can be suitable for various occasions with high heat dissipation requirements and portability, and has wide application range.
Compared with the prior art, the invention has the beneficial effects that:
(1) The sectional heat dissipation structure of the heat dissipation device enables the air inlet speed and the air outlet speed to be more approximate, so that howling caused by the difference of the air speeds of air flowing through the heat dissipation structure can be reduced, and noise is reduced;
(2) The fan is arranged at the subsection of the heat radiation structure of the heat radiation device, so that the heat emitted by the heat radiation structure can be rapidly discharged, and the heat radiation efficiency of the heat radiation device is improved;
(3) The heat dissipation device has higher heat dissipation efficiency without using a heat pipe and a refrigerant, realizes heat discharge by the heat dissipation structure and the fan, and has light weight, small volume and convenient carrying.
(4) The heat dissipation lamp can be suitable for various occasions with high heat dissipation requirements and convenience in carrying, and has a wide application range.
Drawings
FIG. 1 is a perspective view of a heat sink;
FIG. 2 is a perspective view of a heat sink from another perspective;
FIG. 3 is a schematic diagram of a heat dissipating device;
FIG. 4 is a schematic view of a heat dissipating structure and a fan blade set mounted in a mating manner;
FIG. 5 is an exploded view of a heat dissipating structure and fan blade set;
FIG. 6 is a schematic diagram of a heat dissipating structure and a support frame;
FIG. 7 is a perspective view showing a distribution arrangement of heat dissipation structures according to the first embodiment;
FIG. 8 is a top view of a heat dissipation structure according to a first embodiment;
FIG. 9 is a schematic diagram illustrating the assembly of a fan set and a heat dissipation structure when a fan set is provided;
FIG. 10 is an exploded view of a fan assembly and a heat dissipating structure when a fan assembly is provided;
FIG. 11 is a schematic diagram illustrating an assembly of two fan sets and a heat dissipation structure;
FIG. 12 is an exploded view of a fan assembly and a heat dissipating structure when two fan assemblies are provided;
FIG. 13 is a schematic diagram illustrating another assembly of the fan sets and the heat dissipation structure when two fan sets are provided;
FIG. 14 is an exploded view of a fan assembly and a heat dissipating structure when two fan assemblies are provided;
fig. 15 is a perspective view showing a distribution arrangement of heat dissipation structures in a third embodiment;
fig. 16 is a top view illustrating a distribution arrangement of heat dissipation structures in a third embodiment;
fig. 17 is a schematic diagram illustrating a distribution arrangement of heat dissipation structures in a fourth embodiment;
fig. 18 is a schematic diagram illustrating a distribution arrangement of heat dissipation structures in a fifth embodiment;
fig. 19 is a perspective view showing a distribution arrangement of heat dissipation structures in a sixth embodiment;
fig. 20 is a top view showing a distribution arrangement of heat dissipation structures in a sixth embodiment;
in the accompanying drawings: 1. a support frame; 11. a top plate; 12. a bottom plate; 13. a column; 2. a fan; 21. a fan blade group; 22. a driver; 23. a mounting plate; 24. a connecting piece; 25. a driving plate; 3. a heat dissipation structure; 4. a ring-shaped structure; 5. a connecting plate; 51. an air inlet hole; 6. a splitter plate.
Detailed Description
The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Example 1
An embodiment of a heat dissipating device according to the present invention is shown in fig. 1 to 8, and comprises a support frame 1, a fan 2 and a plurality of heat dissipating structures 3, wherein the fan 2 comprises a fan blade set 21 composed of a plurality of fan blades and a driver 22 mounted on the support frame 1, the end portion of the fan blade set 21 is connected with a mounting plate 23, the mounting plate 23 is connected with the driver, the plurality of heat dissipating structures 3 are mounted on the support frame 1, and the plurality of heat dissipating structures 3 at least form two annular structures 4 around the central axis of the support frame 1, and at least one fan blade set 21 is located between two adjacent annular structures 4. In this embodiment, the fan 2 and the heat dissipation structure 3 are coaxially arranged, and the height of the fan blade set 21 is almost equal to the height of the heat dissipation structure 3, so that the heat at each height of the heat dissipation structure 3 can be effectively discharged; the support 1 includes a top plate 11, a bottom plate 12, and a plurality of columns 13 vertically connected between the top plate 11 and the bottom plate 12, the heat dissipation structure 3 is fixed to the bottom plate 12, the driver 22 may be a motor, and part of the driver is fixed to the top plate of the support 1, and the output shaft axis of the motor, the central axis of the fan 2, and the central axis of the heat dissipation structure 3 are collinear.
When the plurality of heat dissipation structures 3 are surrounded to form at least two annular structures 4 and the fan blade groups 21 are a group, the fan blade groups 21 are arranged between the two adjacent annular structures 4, as shown in fig. 9. The movement of the fan blade group 21 discharges the heat of each heat radiation structure 3 to the heat radiation structure 3 of the outermost ring.
When the plurality of heat dissipation structures 3 surrounds at least two annular structures 4, and the fan blade groups 21 are at least two groups, at least one group of fan blade groups 21 is located between adjacent annular structures 4. Specifically:
when the fan blade sets 21 are two groups, one fan blade set 21 is located between the adjacent annular structures 4, and the other fan blade set 21 is located inside the inner ring annular structure 4 (as shown in fig. 13 and 14), outside the outer ring annular structure 4 (as shown in fig. 11 and 12), or between the adjacent annular structures 4: when the fan blade group 21 is arranged on the inner ring of the annular structure 4, the movement of the fan blade group 21 can suck air and can discharge the sucked air to the heat dissipation structure 3; when the fan blade group 21 is arranged between the adjacent annular structures 4, the movement of the fan blade group 21 discharges the heat of each heat dissipation structure 3 to the heat dissipation structure 3 at the outermost ring; when the fan blade group 21 is arranged on the outer ring of the annular structure 4, the movement of the fan blade group 21 centrifugally discharges the air inside the heat dissipation structure 3. The two fan blade groups 21 are arranged, so that heat of the heat radiating structure 3 can be taken away rapidly, the heat radiating efficiency is effectively improved, the structure of the fan 2 can be simplified when the two fan blade groups 21 synchronously rotate, and the manufacturing cost of the heat radiating device can be reduced.
As shown in fig. 1 to 5, when the fan blade groups 21 are at least three groups, one fan blade group 21 is located inside the inner ring annular structure 4, one fan blade group is located outside the outer ring annular structure 4, and the other fan blade groups are located between the adjacent annular structures 4: the fan blade group 21 is arranged at the inner ring of the annular structure 4, can suck air, and can discharge the sucked air to the heat dissipation structure 3; the fan blade group 21 is arranged between the adjacent annular structures 4 and discharges the heat of each heat dissipation structure 3 to the heat dissipation structure 3 at the outermost ring; the fan blade group 21 is arranged on the outer ring of the annular structure 4 and centrifugally discharges air inside the heat dissipation structure 3; through the position arrangement of the centrifugal fans, the heat dissipation effect of each heat dissipation structure 3 is fully exerted, and the heat dissipation efficiency is improved remarkably.
In this embodiment, the fan blade sets 21 are all connected to the same driver 22 and rotate in the same direction and at the same speed. The mounting plates 23 of each fan blade group 21 are connected with connecting pieces 24, the connecting pieces 24 are connected with driving plates 25, the driving plates 25 are connected to a driver, and each fan blade group 21 can be respectively provided with the driving plates 25 or can share one group of driving plates 25 so as to simplify the product structure. Specifically, the mounting plate 23 is annular, the mounting plate 23 is uniformly connected with a plurality of connecting pieces 24, the connecting pieces 24 are connected with the driving plate 25, and the specific connection mode can be detachable connection so as to facilitate the assembly and disassembly of the fan blade group 21; the driving plate 25 is connected with the driver, so that the central axes of the driving plate 25 and the driver are convenient to grasp, the mounting difficulty is reduced, and the driving stability is improved. In addition, by designing the connection 24, a gap is left between the mounting plate 23 and the support frame 1, which gap on the one hand provides sufficient space for the mounting of the drive on the support frame 1, and on the other hand also provides an air intake channel, where the air intake takes away the heat generated by the operation of the drive 22.
The end parts of the plurality of heat dissipation structures 3 are connected with a connecting plate 5, an air inlet hole 51 is formed in the center of the connecting plate 5, and the fan 2 is a centrifugal fan 2 and discharges air entering through the air inlet hole 51 to the centrifugal direction. The connecting plate 5 can be connected to one end of the heat radiation structure 3, the connecting plate 5 can be connected to two ends of the heat radiation structure 3, the air inlet 51 can be arranged at one end of the heat radiation structure 3, and the air inlet 51 can be arranged at two ends of the heat radiation structure 3 at the same time, the positions of the air inlet 51 are different in influence on the air inlet direction, but no matter the air is fed from one end or the air is fed from two ends, the air fed from the air inlet 51 can be centrifugally discharged under the action of the centrifugal fan 2.
Specifically, in order to reasonably utilize the installation space everywhere so that the structure is reasonable and compact, in this embodiment, the connection plate 5 is connected to the bottom of the heat dissipation structure 3, the bottom plate 12 of the support frame 1 is provided with an installation hole, the connection plate 5 is placed in the installation hole, and the connection plate 5 is fastened and connected with the bottom plate through a threaded structure. When the centrifugal fan 2 works, air is sucked from an air inlet hole 51 positioned at the bottom of the heat radiating device, and the sucked air is discharged under the action of the centrifugal fan 2; or when the centrifugal fan 2 works, the bottom air suction is mainly, the top air suction is auxiliary, and the air is exhausted from the circumferential direction of the centrifugal fan 2.
In this embodiment, the heat dissipation structure 3 is a cylindrical structure, central axes of a plurality of cylindrical structures are parallel and surround to form a plurality of groups of annular structures, and the heat dissipation structures 3 on each group of annular structures are uniformly arranged. When the heat radiation structure 3 is a cylindrical structure, the shape and the size of all cylindrical structures are consistent, and the sectional arrangement of the heat radiation structure 3 can be realized only by adjusting the position of the heat radiation structure 3, so that the heat radiation structure is simple in structure and low in production cost, and has better heat radiation effect and noise reduction effect.
When the embodiment is implemented, the sectional design of the heat dissipation structure 3 enables the wind inlet speed and the wind outlet speed to be more approximate, so that the howling generated by the difference of wind speeds of air flowing through the heat dissipation structure 3 can be reduced, and the noise is reduced; the fan 2 is arranged at the subsection of the heat radiation structure 3, so that the heat emitted by the heat radiation structure 3 can be rapidly discharged, and the heat radiation efficiency of the heat radiation device is improved. In addition, the heat radiating device has higher heat radiating efficiency without using a heat pipe and a refrigerant, and the heat radiating structure 3 and the fan 2 realize heat discharge, so that the heat radiating device has light weight, small volume and convenient carrying.
Example two
The present embodiment is similar to the embodiment, except that in the present embodiment: the plurality of heat dissipation structures 3 surrounds at least two annular structures 4, the fan blade groups 21 are at least two groups, at least one group of fan blade groups 21 is located between the adjacent heat dissipation structures 3, and each group of fan blade groups 21 can rotate in different directions and/or at different speeds. When the fan blade sets 21 are two groups, one fan blade set 21 is located between the two annular structures 4, and the other fan blade set 21 is located at the inner ring of one annular structure 4 or at the outer ring of the other annular structure 4: when the fan blade group 21 is arranged on the inner ring of the annular structure 4, the movement of the fan blade group 21 can suck air and can discharge the sucked air to the heat dissipation structure 3; when the fan blade group 21 is arranged between the adjacent annular structures 4, the movement of the fan blade group 21 discharges the heat of each heat dissipation structure 3 to the heat dissipation structure 3 at the outermost ring; when the fan blade group 21 is arranged on the outer ring of the annular structure 4, the movement of the fan blade group 21 centrifugally discharges the air inside the heat dissipation structure 3. In this embodiment, at least two fan blade groups 21 are provided, so that heat of the heat dissipation structure 3 can be rapidly taken away, and heat dissipation efficiency is effectively improved; the direction and speed of each fan blade group 21 can be adjusted according to the requirement, so that the wind speed and the wind flow in the air duct can be controlled more accurately, the air inlet speed and the air outlet speed are kept nearly consistent, and higher heat dissipation efficiency and lower noise are realized.
Each fan blade group 21 is connected to a respective group of drivers, or each fan blade group 21 is connected to the same group of drivers through a transmission mechanism with different transmission ratios, or a combination of the two driving modes. When each fan blade group 21 is connected with the respective driver, although the rotation speed and the rotation direction of each fan blade group 21 can be conveniently and accurately controlled, the manufacturing difficulty is high, the manufacturing requirement and the manufacturing cost are high, and the fan blade group is applicable to the field of precise heat dissipation; when the same driver is adopted to realize the difference of the wind speed and the steering of each group of fan blade groups 21 through the transmission mechanisms with different transmission ratios, although the precise regulation and control of the wind speed and the steering of each fan blade group 21 cannot be realized, the differentiation of the wind speed and the steering of each fan blade group 21 can be realized, and the wind speed and the steering of each fan blade group 21 are easy to realize and have wider application range.
Specifically, when each of the fan blade groups 21 is connected to a respective one of the group of drivers: if two groups of fan blade groups 21 are provided, two groups of drivers corresponding to the two groups of fan blade groups 21 can be respectively arranged on the bottom plate of the support frame 1 and the top plate of the support frame 1; if there are three or more fan blade groups 21, in order to avoid the interference of the movement between the fan blade groups 21, a transmission mechanism such as a rack and pinion, a sprocket, and a chain may be provided between the fan blade groups 21 and the drivers, so that the drivers having the same number as the fan blade groups 21 are arranged in a limited space.
When each group of fan blade groups 21 is connected with the same driver through transmission structures with different transmission ratios, specifically, if the transmission structures do not carry out gear transmission, driving gears with the same number as the fan blade groups 21 are connected to the output shaft of the driver, driven gears are coaxially arranged on the respective fan blade groups 21, the driving gears are sequentially arranged from top to bottom, and each driving gear and each driven gear form a transmission system with different transmission ratios, so that the rotation speed of the fan blade groups 21 from inside to outside is gradually increased, or the rotation speed of the fan blade groups 21 from inside to outside is gradually reduced, or the rotation speed of the fan blade groups 21 from inside to outside is gradually increased, and the rotation speed of the fan blade groups 21 from inside to outside is increased.
Example III
The difference between this embodiment and the first or second embodiment is that, specifically, the heat dissipation structure 3 is a sheet structure, and several sheet structures surround to form at least two sets of annular structures, as shown in fig. 15 to 16. Taking two groups of annular structures as an example, the centers of the two groups of annular structures and the connecting plate 5 are concentric, the sheet-shaped structures on the two groups of annular structures are formed by breaking continuous sheet-shaped structures, and the continuous sheet-shaped structures can be linear structures, oblique line-shaped structures or arc-shaped structures.
In this embodiment, the sheet structure is a linear structure. At this time, the radial setting of connecting plate 5 is followed to the straight line shape structure evenly, is convenient for the processing of heat radiation structure 3, is the segmentation department between two sets of ring shape structures, and the setting of heat radiation structure 3 segmentation makes air inlet wind speed and air-out wind speed more close to can reduce the air and flow through heat radiation structure 3 and produce the squeal because of the wind speed difference, noise reduction. A splitter plate 6 is arranged between the adjacent heat dissipation structures 3 of the inner ring circular ring structure, and the radial length of the splitter plate 6 is smaller than that of the heat dissipation structures 3; and on the outer ring circular ring structure, the sheet-shaped structure which is positioned on the same radial line with the flow dividing plate 6 has the same radial length with the heat dissipation structures 3 at the two sides, and the heat dissipation structures 3 on the outer ring circular ring structure have no flow dividing effect. The arrangement of the splitter plate 6 can further even the wind speeds at different positions in the air duct so as to achieve better noise reduction effect.
Example IV
The present embodiment is similar to the third embodiment except that the sheet-like structure is a diagonal-line-shaped structure. At this time, the plurality of diagonal structures are inclined at the same inclination angle to the clockwise or counterclockwise direction, and the diagonal structures are arranged to be convenient for increasing the contact area between the air and the heat dissipation structure 3 and improving the heat dissipation efficiency of the heat dissipation device, as shown in fig. 17. Two groups of annular structures or a plurality of groups of annular structures are formed by breaking the middle part of the oblique line-shaped structure, the subsection is positioned between the two groups of annular structures, and the subsection of the heat radiation structure 3 enables the air inlet speed and the air outlet speed to be more approximate, so that the air flowing through the heat radiation structure 3 can be reduced, howling is generated due to the difference of the air speeds, and noise is reduced. A flow dividing plate 6 is arranged between the adjacent heat dissipation structures 3 of the inner ring circular ring structure, and the length of the flow dividing plate 6 is smaller than that of the heat dissipation structures 3; the sheet structure on the same line with the splitter plate 6 on the outer ring circular ring structure is basically equal to the lengths of the heat dissipation structures 3 on the two sides, and the heat dissipation structures 3 on the outer ring circular ring structure have no splitting effect. The arrangement of the splitter plate 6 can further even the wind speeds at different positions in the air duct so as to achieve better noise reduction effect.
Example five
This embodiment is similar to the third embodiment except that the sheet-like structure is an arc-like structure. At this time, the arc structures are bent in both clockwise and counterclockwise directions, and the start points of the arc structures are uniformly arranged on one circumference and the end points of the arc structures are uniformly arranged on the other circumference, as shown in fig. 18. Two groups of circular ring structures or a plurality of groups of circular ring structures are formed in the middle of the arc-shaped structure in a breaking mode, the subsection positions are located between the two groups of circular ring structures, the subsection setting of the heat dissipation structure 3 enables the air inlet speed and the air outlet speed to be closer, and therefore the air flowing through the heat dissipation structure 3 can be reduced, howling and noise can be reduced due to the difference of the wind speeds. A flow dividing plate 6 is arranged between the adjacent heat dissipation structures 3 of the inner ring circular ring structure, and the length of the flow dividing plate 6 is smaller than that of the heat dissipation structures 3; the sheet structure on the same line with the splitter plate 6 on the outer ring circular ring structure is basically equal to the lengths of the heat dissipation structures 3 on the two sides, and the heat dissipation structures 3 on the outer ring circular ring structure have no splitting effect. The arrangement of the splitter plate 6 can further even the wind speeds at different positions in the air duct so as to achieve better noise reduction effect.
Example six
The difference between this embodiment and the first or second embodiment is that the heat dissipation structure 3 is a sheet structure, and several sheet structures surround the heat dissipation structure 3 forming at least three sets of annular structures, and the inner and outer annular structures are arranged along the radial direction, where the radial line of one ring of sheet structures is located between the radial lines of two adjacent sets of sheet structures on adjacent rings, as shown in fig. 19 to 20. The continuous sheet-shaped structure is broken, the heat dissipation structures 3 on adjacent circles are all staggered, and the heat dissipation structure 3 of one circle of annular structure plays a role in shunting the heat dissipation structure 3 of the next circle of annular structure along the air inlet direction, so that the contact area of air and the heat dissipation fins can be increased, and the heat dissipation efficiency is improved; on one hand, the wind speed at different positions in the air duct can be uniform, and noise is avoided.
In addition, when the centrifugal fan 2 is operated, air is sucked through the air inlet 51 at the bottom of the heat dissipating device, and sucked air is discharged by the centrifugal fan 2, so that noise is generated due to a difference in air speed between the air inlet and the air outlet in the radial air discharge direction, and noise is generated due to a difference in air speed between the fan blade group 21 and the starting end and the end of the heat dissipating structure 3 in the axial direction when the axial length is long. In order to avoid noise caused by axial direction wind speed difference, the thickness of the heat dissipation structure 3 of the embodiment gradually decreases from bottom to top, so that the size of the air duct between the heat dissipation structures 3 gradually increases from bottom to top, the wind speeds of the air ducts with the diameters are uniform, noise caused by axial direction wind speed difference is avoided, and noise reduction of the heat dissipation device is improved.
Example seven
The present embodiment is an embodiment of a heat dissipating device, including a plurality of lamp beads, and the heat dissipating device in any one of the first to sixth embodiments or any non-contradictory combination of the first to sixth embodiments, where the lamp beads are mounted on a surface of the heat dissipating device facing away from the fan 2.
In this embodiment, the bottom end portions of the plurality of heat dissipation structures 3 are connected with a connection plate 5, and the lamp beads are mounted on the connection plate 5. And the lamp beads are preferably arranged on the radiating surface around which the radiating structure 3 projects on the connecting plate 5. Therefore, when the embodiment is implemented, the heat emitted by the lamp beads is conducted to the heat radiating structure 3, and the heat on the heat radiating structure 3 is timely and rapidly discharged by the fan 2, so that the heat of the lamp beads can be efficiently radiated, and the service life of the heat radiating lamp can be effectively prolonged; in addition, due to the arrangement of the heat dissipation structure 3, the heat dissipation lamp can avoid noise formed by wind speed difference in the heat dissipation process. The heat dissipation lamp has higher heat dissipation efficiency without using a heat pipe and a refrigerant, and the heat dissipation structure 3 and the fan 2 realize heat discharge, so that the heat dissipation lamp is light in weight, small in size and convenient to carry.
In summary, the heat dissipation lamp of the embodiment is particularly suitable for a photographic lamp, which needs high heat dissipation efficiency and needs easy portability, because the heat dissipation lamp has high heat dissipation efficiency, low noise, light weight, small volume and easy portability.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (5)
1. The heat dissipation device is characterized by comprising a support frame (1), a fan (2) and a plurality of heat dissipation structures (3):
the fan (2) comprises a fan blade group (21) formed by a plurality of groups of fan blades and a driver (22) arranged on the support frame (1), wherein the end part of the fan blade group (21) is connected with a mounting plate (23), the mounting plate (23) is connected with the driver, a plurality of heat dissipation structures (3) are arranged on the support frame (1), the plurality of heat dissipation structures (3) at least form two annular structures (4) around the central axis of the support frame (1), and the fan blade group (21) is positioned between two adjacent annular structures (4);
the mounting plates (23) of the fan blade groups (21) are connected with connecting pieces (24), the connecting pieces (24) are connected with driving plates (25), and the driving plates (25) are connected with a driver (22); the fan blade groups (21) are at least two groups, the fan blade groups (21) are annular, at least one group of fan blade groups (21) are positioned between adjacent annular structures (4), and each group of fan blade groups (21) can rotate in different directions and/or at different speeds; the ends of the heat dissipation structures (3) are connected with a connecting plate (5), and an air inlet hole (51) is formed in the center of the connecting plate (5);
the heat dissipation structures (3) are cylindrical structures, central axes of the cylindrical structures are parallel, and a plurality of groups of circular ring structures are formed around the central axes, and the heat dissipation structures (3) on each group of circular ring structures are uniformly distributed; or the heat dissipation structures (3) are sheet structures, a plurality of sheet structures surround to form at least two groups of annular structures, and the flow distribution plates (6) are arranged between the adjacent heat dissipation structures (3) on at least one annular structure.
2. The heat dissipating device according to claim 1, wherein each of said fan blade sets (21) is connected to a respective one of said drives, or wherein each of said fan blade sets (21) is connected to a same one of said drives via a transmission mechanism having a different transmission ratio, or a combination of both of said drives.
3. The heat sink according to claim 1, wherein the fan (2) is a centrifugal fan (2) that discharges air entering through the air inlet (51) in a centrifugal direction.
4. A heat sink according to claim 1, characterized in that the plurality of sheet structures are arranged radially around the heat sink structure (3) forming at least three sets of annular structures, and the inner and outer annular structures, wherein the radial line of one set of sheet structures is located between the radial lines of two adjacent sets of sheet structures on adjacent circles.
5. A heat dissipating light fixture comprising a plurality of light beads and a heat dissipating device according to any one of claims 1 to 4, wherein the light beads are mounted on a surface of the heat dissipating device facing away from the fan (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210082600.1A CN114543056B (en) | 2022-01-24 | 2022-01-24 | Heat abstractor and heat dissipation lamps and lanterns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210082600.1A CN114543056B (en) | 2022-01-24 | 2022-01-24 | Heat abstractor and heat dissipation lamps and lanterns |
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| CN114543056A CN114543056A (en) | 2022-05-27 |
| CN114543056B true CN114543056B (en) | 2023-12-08 |
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| CN209558062U (en) * | 2019-03-12 | 2019-10-29 | 温州市烁达光源科技有限公司 | A kind of lamps and lanterns |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6457955B1 (en) * | 2001-01-10 | 2002-10-01 | Yen Sun Technology Corp. | Composite heat dissipation fan |
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| CN2387579Y (en) * | 1999-06-07 | 2000-07-12 | 林世仁 | CPU radiator |
| CN2479645Y (en) * | 2001-03-29 | 2002-02-27 | 台达电子工业股份有限公司 | Built-in centrifugal cooling device |
| CN101399239A (en) * | 2007-09-29 | 2009-04-01 | 秦彪 | Flat shape electronic chip radiator |
| CN102713486A (en) * | 2009-12-02 | 2012-10-03 | 韩国科学技术院 | Heatsink |
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| Publication number | Publication date |
|---|---|
| CN114543056A (en) | 2022-05-27 |
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