CN217055367U - Heat dissipation device and engine - Google Patents
Heat dissipation device and engine Download PDFInfo
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- CN217055367U CN217055367U CN202220697708.7U CN202220697708U CN217055367U CN 217055367 U CN217055367 U CN 217055367U CN 202220697708 U CN202220697708 U CN 202220697708U CN 217055367 U CN217055367 U CN 217055367U
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- 230000017525 heat dissipation Effects 0.000 title abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 83
- 238000003466 welding Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 11
- 230000005855 radiation Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 241000883990 Flabellum Species 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Abstract
The application discloses heat abstractor and engine, heat abstractor includes: the first cooling fan comprises a hub and first fan blades arranged on the periphery of the hub at intervals; the second cooling fan comprises a second fan blade, the rotation axis of the second cooling fan coincides with the rotation axis of the first cooling fan, the second cooling fan is located on the air outlet side of the first cooling fan and detachably connected to the first cooling fan so that the first cooling fan can drive the second fan blade to rotate, and the second cooling fan faces towards the projection of the first cooling fan and falls into the hub. The heat dissipation device disclosed by the application can increase the air pressure and the air quantity at the hub, is excellent in heat dissipation capability, and has the advantages of simple structure, convenience in disassembly and assembly, low manufacturing cost and the like.
Description
Technical Field
The application relates to the technical field of engine heat dissipation, in particular to a heat dissipation device and an engine.
Background
With the development of automobile technology, the requirements for the heat dissipation system of an automobile engine are higher and higher, and in the prior art, the engine is generally provided with a heat sink equipped with a heat dissipation fan, and the heat dissipation fan mainly comprises a hub and fan blades. In the running process of the engine, the part of the engine, which is right opposite to the fan blades, can receive the air volume from the fan blades, so that a better heat dissipation effect is ensured, but the part of the engine, which is right opposite to the hub, can not be effectively dissipated because the hub can not generate larger air volume, and even hot air can flow back to the hub because the air pressure near the hub is lower. In the prior art, some engines adopt a mode of increasing the size of a cooling fan to improve the cooling area, but the size of a radiator is increased undoubtedly due to the increase of the size of the cooling fan, so that the size of the engine is increased, and the cooling power consumption is increased.
SUMMERY OF THE UTILITY MODEL
The application provides a heat dissipation device and an engine, which aim to solve at least one technical problem in the technical problems.
The technical scheme adopted by the application is as follows:
a heat dissipation device, comprising: the first cooling fan comprises a hub and first fan blades arranged on the periphery of the hub at intervals; the second cooling fan comprises a second fan blade, the rotation axis of the second cooling fan coincides with the rotation axis of the first cooling fan, the second cooling fan is located on the air outlet side of the first cooling fan and detachably connected to the first cooling fan so that the first cooling fan can drive the second fan blade to rotate, and the second cooling fan faces the projection of the first cooling fan and falls into the hub.
The following additional technical features are also provided in the present application:
the second cooling fan further comprises a fan cover in an annular structure and a connecting rod used for connecting the fan cover and the first cooling fan, and the second fan blades are arranged in the fan cover and connected with the inner wall surface of the fan cover.
The inner wall surface of the wind protection cover is of a concave surface structure.
The connecting rod is provided with the external screw thread, wheel hub be equipped with the screw hole of external screw thread adaptation, second radiator fan pass through the external screw thread with the cooperation detachably of screw hole connect in wheel hub.
The fan guard is connected with a plurality of connecting rods along circumference, a plurality of connecting rods all with fan guard detachably connects.
The outer wall surface of the wind protection cover is provided with a hoop with an opening, and the connecting rod is clamped into the hoop through the opening; or, the outer wall surface of the fan guard is provided with a jack, and the connecting rod is connected with the jack in an interference insertion manner.
The fan cover and the second fan blade are integrally formed; or the wind protection cover is connected with the second fan blade in a welding mode.
The second fan blade is detachably connected to the fan protection cover.
An air inlet gap is formed between the second fan blade and the hub.
The application provides an engine, including the heat abstractor as aforementioned.
Due to the adoption of the technical scheme, the technical effects obtained by the application are as follows:
through the rotation axis coincidence that makes second radiator fan's rotation axis and first radiator fan, second radiator fan connects and can drive second radiator fan when first radiator fan's air-out side and first radiator fan rotate, compares in prior art through the technical scheme that increases radiator fan promoted heat radiating area, the technical scheme of this application: (1) the first cooling fan drives the second cooling fan to synchronously rotate in the rotating process, the air volume and the air pressure generated by the second cooling fan are blown to the position opposite to the hub, taking the heat dissipation of an engine as an example, the position of the engine opposite to the hub can receive the air from the second cooling fan to obtain a better heat dissipation effect, the technical problem that the heat dissipation effect of the engine is greatly reduced due to the fact that the air pressure and the air volume at the hub are lower in the prior art is effectively solved, and the second cooling fan blows outwards to prevent hot air generated after heat exchange from flowing back to the hub; (2) the projection of the second cooling fan towards the first cooling fan falls into the hub, in other words, on the basis that the rotation axis of the second cooling fan is coincident with the rotation axis of the first cooling fan, the radial dimension of the second cooling fan is smaller than or equal to that of the hub, so that the radial dimension of the cooling device cannot be increased by the second cooling fan, and the influence on the volume of the engine is very small; (3) the second heat radiation fan drives the second fan blade to rotate through the connection of the first heat radiation fan and the second heat radiation fan, so that an additional independent motor for driving the second fan blade to rotate is omitted, the structure of the heat radiation device is simple, the manufacturing cost is low, and when the heat radiation device is applied to engine heat radiation, the power consumption is low.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a heat dissipation device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a second heat dissipation fan according to an embodiment of the present disclosure.
Reference numerals are as follows: the fan comprises a first cooling fan 1, a hub 11, a first fan blade 12, a second cooling fan 2, a second fan blade 21, a fan guard 22, a clamp 221 and a connecting rod 23.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the present application and to simplify the 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 thus, are not to be considered limiting of the present application.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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 present application. 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.
In the embodiment of the present application, a heat dissipation device as shown in fig. 1 is provided, and for convenience of illustration and understanding, the following description is provided on the basis of the structure of the illustrated product. Of course, it is understood by those skilled in the art that the above-described structure is only used as a specific example and illustrative illustration, and does not constitute a specific limitation to the technical solution provided by the present application. Although not shown in the drawings, the present application also provides an engine having the heat sink.
As shown in fig. 1 and 2, a heat dissipating apparatus includes a first heat dissipating fan 1 and a second heat dissipating fan 2; the first cooling fan 1 comprises a hub 11 and first fan blades 12 arranged on the periphery of the hub 11 at intervals; second radiator fan 2 includes second flabellum 21, the axis of rotation of second radiator fan 2 with the axis of rotation coincidence of first radiator fan 1, second radiator fan 2 is located the air-out side and the detachably of first radiator fan 1 connect in first radiator fan 1 is so that first radiator fan 1 can drive second flabellum 21 rotates, second radiator fan 2 orientation first radiator fan 1's projection falls into in wheel hub 11.
It can be understood by those skilled in the art that, by making the rotation axis of the second cooling fan 2 coincide with the rotation axis of the first cooling fan 1, the second cooling fan 2 is connected to the air outlet side of the first cooling fan 1, and the first cooling fan 1 can drive the second cooling fan 2 when rotating, compared with the technical solution in the prior art that the cooling area is increased by increasing the cooling fan, the technical solution in the present application: (1) the first cooling fan 1 drives the second cooling fan 2 to synchronously rotate in the rotating process, the air volume and the air pressure generated by the second cooling fan 2 are blown to the position opposite to the hub 11, taking the heat dissipation of an engine as an example, the position of the engine opposite to the hub can receive the air from the second cooling fan to obtain a better heat dissipation effect, the technical problem that the heat dissipation effect of the engine is greatly reduced due to the fact that the air pressure and the air volume at the hub are lower in the prior art is effectively solved, and the second cooling fan 2 can also prevent hot air generated after heat exchange from flowing back to the hub by blowing outwards; (2) the projection of the second cooling fan 2 toward the first cooling fan 1 falls into the hub 11, in other words, on the basis that the rotation axis of the second cooling fan 2 coincides with the rotation axis of the first cooling fan 1, the radial dimension of the second cooling fan 2 is smaller than or equal to the radial dimension of the hub 11, therefore, the presence of the second cooling fan 2 does not increase the dimension of the cooling device in the radial direction, and the influence on the volume of the engine is very small; (3) the second heat dissipation fan 2 is connected with the first heat dissipation fan 1 to enable the first heat dissipation fan 1 to drive the second fan blade 21 to rotate, and an additional independent motor is omitted to drive the second fan blade 21 to rotate, so that the heat dissipation device is simple in structure, low in manufacturing cost and low in power consumption when applied to heat dissipation of an engine.
It should be noted that, the structure and the number of the first fan blade 12 and the second fan blade 21 shown in fig. 1 are not limited to the present application, and other forms and numbers of the first fan blade and the second fan blade may also be used.
As a preferred embodiment of the present application, as shown in fig. 2, the second cooling fan 2 further includes a wind guard 22 in an annular structure and a connecting rod 23 for connecting the wind guard 22 and the first cooling fan 1, and the second fan blade 21 is disposed in the wind guard 22 and connected to an inner wall surface of the wind guard 22.
It can be understood by those skilled in the art that, compared to the manner that the second heat dissipation fan is configured to have a hub and the fan blades are installed on the periphery of the hub, by disposing the second fan blades 2 in the wind protection cover 22, the entire radial profile of the second heat dissipation fan 2 is substantially formed by the second fan blades 21, and there is no need to add an additional hub to support the second fan blades 21, which is helpful to increase the area of the wind outlet surface of the second heat dissipation fan 2. In addition, the wind shield 22 can also achieve a wind gathering effect, reduce the loss of wind volume, and further improve the heat dissipation effect of the heat dissipation device.
As a preferable example, the inner wall surface of the shroud 22 may have a concave structure.
The design of the concave structure of the wind shield 22 can further improve the wind gathering effect, and can also reduce the mutual interference and offset of the wind generated by the first cooling fan 1 and the second cooling fan 2, thereby improving the cooling effect of the cooling device.
As a preferable example, the connection rod 23 may be provided with an external thread, the hub 11 may be provided with a threaded hole adapted to the external thread, and the second heat dissipation fan 2 may be detachably connected to the hub 11 by the engagement of the external thread and the threaded hole.
As can be understood by those skilled in the art, the second cooling fan 2 is mounted on the hub 11 of the first cooling fan 1 through the matching of the external threads and the threaded holes, so that the mounting is convenient and quick, and the second cooling fan 2 can be replaced when being aged or damaged.
It should be noted that the detachable connection between the connecting rod 23 and the hub 11 may be implemented by other suitable means, such as a plug connection, a snap connection, a screw connection, a rivet connection, and so on.
Further, as shown in fig. 1 and 2, a plurality of connecting rods 23 are connected to the wind guard 22 along the circumferential direction, and the plurality of connecting rods 23 are detachably connected to the wind guard 22.
It can be understood by those skilled in the art that the connection of the cowl 22 and the hub 11 by the plurality of connection rods 23 can improve the installation stability of the second heat dissipation fan 2 and the reliability of the heat dissipation apparatus in operation, and reduce the problem of stress concentration occurring in a single connection rod.
As for the detachable connection manner of the connection rod 23 and the wind guard 22, any one of the following examples may be adopted:
example 1: as shown in fig. 2, a clamp 221 having an opening is disposed on an outer wall surface of the wind guard 22, and the connecting rod 23 is inserted into the clamp 221 through the opening.
Example 2: the outer wall surface of the wind shield 22 is provided with a jack, and the connecting rod 23 is connected with the jack in an interference insertion manner.
In the present application, the connection mode between cowl 22 and second fan blade 21 is not limited, and any one of the following embodiments may be adopted:
example 1: the wind shield 22 and the second fan blade 21 are connected in a non-detachable manner, specifically, the wind shield 22 and the second fan blade 21 are integrally formed; or, the wind shield 22 and the second fan blade 21 are connected by welding. The integral forming method omits the installation process of the wind shield 22 and the second fan blade 21, and the structural stability of the second cooling fan 2 is improved by the integral forming and welding connection method.
Example 2: the second fan blade 21 is detachably connected to the wind guard 22.
As a preferred embodiment of the present application, as shown in fig. 1, an air inlet gap is formed between the second blade 21 and the hub 11.
Those skilled in the art can understand that, compared with the way of tightly attaching the second fan blade to the hub, the air inlet gap facilitates the circulation of air flow, so that the air inlet side quickly sucks air when the second fan blade 21 rotates, and a better heat dissipation effect is achieved.
The engine provided by the present application includes the heat dissipation device as described in any of the foregoing embodiments, examples, and therefore, the beneficial effects of the heat dissipation device are all included in the engine provided by the present application, and are not described herein again.
Where not mentioned in this application, this may be achieved using or taking advantage of existing technology.
All the embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from other embodiments.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A heat dissipating device, comprising:
the first cooling fan comprises a hub and first fan blades arranged on the periphery of the hub at intervals;
the second cooling fan comprises a second fan blade, the rotation axis of the second cooling fan coincides with the rotation axis of the first cooling fan, the second cooling fan is located on the air outlet side of the first cooling fan and detachably connected to the first cooling fan so that the first cooling fan can drive the second fan blade to rotate, and the second cooling fan faces towards the projection of the first cooling fan and falls into the hub.
2. The heat dissipating device of claim 1,
the second cooling fan further comprises a fan cover in an annular structure and a connecting rod used for connecting the fan cover and the first cooling fan, and the second fan blades are arranged in the fan cover and connected with the inner wall surface of the fan cover.
3. The heat sink as claimed in claim 2,
the inner wall surface of the wind protection cover is of a concave surface structure.
4. The heat sink as claimed in claim 2,
the connecting rod is provided with the external screw thread, wheel hub be equipped with the screw hole of external screw thread adaptation, second radiator fan passes through the external screw thread with the cooperation detachably of screw hole connect in wheel hub.
5. The heat dissipating device of claim 4,
protect the fan housing and have a plurality of connecting rods along circumferential connection, a plurality of connecting rods all with protect fan housing detachably and connect.
6. The heat dissipating device of claim 5,
the outer wall surface of the wind protection cover is provided with a hoop with an opening, and the connecting rod is clamped into the hoop through the opening; or,
the outer wall surface of the fan guard is provided with a jack, and the connecting rod is connected with the jack in an interference insertion manner.
7. The heat dissipating device of claim 2,
the fan guard and the second fan blade are integrally formed; or,
the wind protection cover is connected with the second fan blade in a welding mode.
8. The heat dissipating device of claim 2,
the second fan blade is detachably connected to the wind protection cover.
9. The heat dissipating device of claim 1,
an air inlet gap is formed between the second fan blade and the hub.
10. An engine comprising a heat sink device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220697708.7U CN217055367U (en) | 2022-03-28 | 2022-03-28 | Heat dissipation device and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220697708.7U CN217055367U (en) | 2022-03-28 | 2022-03-28 | Heat dissipation device and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217055367U true CN217055367U (en) | 2022-07-26 |
Family
ID=82467256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220697708.7U Active CN217055367U (en) | 2022-03-28 | 2022-03-28 | Heat dissipation device and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217055367U (en) |
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2022
- 2022-03-28 CN CN202220697708.7U patent/CN217055367U/en active Active
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