CN105658038B - Heat dissipation device and electronic equipment - Google Patents
Heat dissipation device and electronic equipment Download PDFInfo
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- CN105658038B CN105658038B CN201610157352.7A CN201610157352A CN105658038B CN 105658038 B CN105658038 B CN 105658038B CN 201610157352 A CN201610157352 A CN 201610157352A CN 105658038 B CN105658038 B CN 105658038B
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- heat dissipation
- fan blade
- dissipation device
- rotating wheel
- fan
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
Abstract
The embodiment of the invention discloses a heat dissipation device and electronic equipment, wherein the heat dissipation device comprises: the rotating wheel and more than one fan blade; the first ends of the fan blades are connected to the rotating wheel and can rotate along with the rotating wheel, and the second ends of the fan blades are free ends and are exposed on the peripheral surface of the rotating wheel; and a groove is arranged on the end surface of the second end of the fan blade. The heat dissipation device is installed in the electronic equipment.
Description
Technical Field
The present invention relates to heat dissipation technologies, and in particular, to a heat dissipation device for dissipating heat from an electronic device and an electronic device.
Background
At present, electronic equipment is generally provided with a cooling fan, and blades in the cooling fan are all in the same shape and are completely symmetrically distributed around the axis of a rotating shaft. The current fan design mainly has the following disadvantages:
during the rotation process of the fan, the gas is too concentrated when flowing to an internal pressure area, and noise is easy to generate; the performance of the fan with excessive noise cannot be optimized, and the fan size must be increased to meet the performance requirement, which results in insufficient heat dissipation performance of the fan and poor heat dissipation performance of the electronic device.
Disclosure of Invention
The embodiment of the invention provides a heat dissipation device and electronic equipment.
The technical scheme of the embodiment of the invention is realized as follows:
a heat dissipation device, the device comprising: the rotating wheel and more than one fan blade; the first ends of the fan blades are connected to the rotating wheel and can rotate along with the rotating wheel, and the second ends of the fan blades are free ends and are exposed on the peripheral surface of the rotating wheel; and a groove is arranged on the end surface of the second end of the fan blade.
In the embodiment of the invention, the number of the grooves arranged on the end surface of the second end of the fan blade is more than two.
In the embodiment of the invention, more than two grooves arranged on the end surface of the second end of the fan blade form a corrugated groove.
In the embodiment of the present invention, each of the two or more slots provided on the end surface of the second end of the fan blade has the same shape.
In the embodiment of the present invention, each of the two or more slots provided on the end surface of the second end of the fan blade has a different shape.
In the embodiment of the invention, the shapes of partial grooves in more than two grooves arranged on the end surface of the second end of the fan blade are the same.
In the embodiment of the invention, the wave-shaped grooves are distributed in an involute mode.
In the embodiment of the invention, the involute directions of the wave-shaped grooves of each fan blade in more than one fan blade are the same or different.
In the embodiment of the invention, the rotating wheel is provided with a central hole; the device further comprises: the motor penetrates through the center hole of the rotating wheel; the motor can drive the rotating wheel to rotate.
The electronic equipment is provided with the heat dissipation device.
In the embodiment of the invention, the groove is arranged on the end face of the far rotating wheel end of the fan blade of the heat dissipation device, and when the fan blade of the heat dissipation device rotates, gas cannot be excessively concentrated when flowing to an internal pressure area, so that the noise generated by the heat dissipation device is very low, the heat dissipation efficiency of the heat dissipation device is not reduced, and the heat dissipation effect of the heat dissipation device is well ensured.
Drawings
Fig. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the invention;
fig. 2 is a schematic front view of a heat dissipation device according to an embodiment of the invention;
fig. 3 is another schematic perspective view of a heat dissipation device according to an embodiment of the invention.
Detailed Description
So that the manner in which the features and aspects of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.
Example one
Fig. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the present invention, and as shown in fig. 1, the heat dissipation device according to the embodiment of the present invention includes: a rotating wheel 10 and more than one fan blade 20; a first end of the fan blade 20 is connected to the rotating wheel 10 and can rotate with the rotating wheel 10, and a second end of the fan blade 20 is a free end and is exposed on the peripheral surface of the rotating wheel; a groove is arranged on the end surface of the second end of the fan blade 20.
Fig. 2 is a front view of a heat dissipation device according to an embodiment of the present invention, and fig. 3 is another perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 2 and 3, the heat dissipation device according to the embodiment of the present invention is composed of a rotating wheel 10 and a plurality of blades 20 disposed on the rotating wheel 10. The centre bore 11 that supplies the rotation axis to wear to establish is provided with in the middle of the swiveling wheel 10, and the rotation axis of power supply machine wears to locate the centre bore 11 of swiveling wheel 10, and with swiveling wheel 10 fixed connection, when the motor starts, the rotation axis through the motor drives the flabellum 20 rotation on the heat abstractor, through the incessant rotation of flabellum 20, makes heat abstractor blow to waiting to dispel the heat part, and the heat that the messenger waited to dispel the heat part produced is taken away by the wind that blows off, reaches the radiating effect of treating the heat dissipation part.
Fig. 3 is another schematic perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 3, the fan blade 20 of the heat dissipation device according to the embodiment of the present invention is inclined toward one side of the center line of the central hole 11 of the rotating wheel 10, or the fan blade 20 is provided with a groove toward one side of the center line of the central hole 11 of the rotating wheel 10, so that when the fan blade 20 of the heat dissipation device rotates, the generated wind blows toward one side of the center line of the central hole 11 of the rotating wheel 10, so as to achieve the effect of dissipating heat of the component to be dissipated.
In order to make the air-out effect of the fan blades 20 of the heat dissipation device better, there is an overlapping portion between the fan blades 20, so that the air-out of the fan blades 20 of the heat dissipation device is toward the component to be dissipated, and will not leak in the opposite direction.
In the embodiment of the invention, the part to be radiated can be a part which is easy to generate heat in electronic equipment such as a CPU (central processing unit), a processing chip and the like.
As shown in fig. 2 and 3, the outer end of the fan blade 20 of the heat dissipation device of the embodiment of the invention is a free end, and the other end is connected to the rotating wheel 10. It should be noted that the fan 20 may be fixedly connected to the rotating wheel 10, or may be connected to the rotating wheel 10 and then may swing along the connection position of the rotating wheel 10, as long as the rotating wheel 10 rotates to drive the fan 20 to rotate together.
As shown in fig. 2 and 3, the outer end of the fan blade 20 of the heat sink of the embodiment of the present invention is provided with a groove 21. In the embodiment of the present invention, the depth of the groove formed at the outer end of the fan blade 20 of the heat dissipation device may be set arbitrarily, and the depth and the size may be set in a certain proportion according to the size of the fan blade 20, or the depth and the size of the groove may be kept at a certain size. It should be noted that the purpose of reducing noise of the heat dissipation device according to the embodiment of the present invention can be achieved by providing the groove 21 at the outer end of the fan blade 20 of the heat dissipation device.
By arranging the groove 21 structure at the outer end of the fan blade 20 of the heat dissipation device, the air outlet of the fan blade 20 of the heat dissipation device is not concentrated too much when the fan blade 20 rotates, so that the noise generated by the heat dissipation device is small enough.
According to the technical scheme of the embodiment of the invention, the grooves are formed on the end face of the end of the far rotating wheel 10 of the fan blade 20 of the heat dissipation device, when the fan blade of the heat dissipation device rotates, air is not excessively concentrated when flowing to an internal pressure area, so that the noise generated by the heat dissipation device is very low, the heat dissipation efficiency of the heat dissipation device is not reduced, and the heat dissipation effect of the heat dissipation device is well ensured.
Example two
Fig. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the present invention, and as shown in fig. 1, the heat dissipation device according to the embodiment of the present invention includes: a rotating wheel 10 and more than one fan blade 20; a first end of the fan blade 20 is connected to the rotating wheel 10 and can rotate with the rotating wheel 10, and a second end of the fan blade 20 is a free end and is exposed on the peripheral surface of the rotating wheel; a groove is arranged on the end surface of the second end of the fan blade 20.
Fig. 2 is a front view of a heat dissipation device according to an embodiment of the present invention, and fig. 3 is another perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 2 and 3, the heat dissipation device according to the embodiment of the present invention is composed of a rotating wheel 10 and a plurality of blades 20 disposed on the rotating wheel 10. The centre bore 11 that supplies the rotation axis to wear to establish is provided with in the middle of the swiveling wheel 10, and the rotation axis of power supply machine wears to locate the centre bore 11 of swiveling wheel 10, and with swiveling wheel 10 fixed connection, when the motor starts, the rotation axis through the motor drives the flabellum 20 rotation on the heat abstractor, through the incessant rotation of flabellum 20, makes heat abstractor blow to waiting to dispel the heat part, and the heat that the messenger waited to dispel the heat part produced is taken away by the wind that blows off, reaches the radiating effect of treating the heat dissipation part.
Fig. 3 is another schematic perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 3, the fan blade 20 of the heat dissipation device according to the embodiment of the present invention is inclined toward one side of the center line of the central hole 11 of the rotating wheel 10, or the fan blade 20 is provided with a groove toward one side of the center line of the central hole 11 of the rotating wheel 10, so that when the fan blade 20 of the heat dissipation device rotates, the generated wind blows toward one side of the center line of the central hole 11 of the rotating wheel 10, so as to achieve the effect of dissipating heat of the component to be dissipated.
In order to make the air-out effect of the fan blades 20 of the heat dissipation device better, there is an overlapping portion between the fan blades 20, so that the air-out of the fan blades 20 of the heat dissipation device is toward the component to be dissipated, and will not leak in the opposite direction.
In the embodiment of the invention, the part to be radiated can be a part which is easy to generate heat in electronic equipment such as a CPU (central processing unit), a processing chip and the like.
As shown in fig. 2 and 3, the outer end of the fan blade 20 of the heat dissipation device of the embodiment of the invention is a free end, and the other end is connected to the rotating wheel 10. It should be noted that the fan 20 may be fixedly connected to the rotating wheel 10, or may be connected to the rotating wheel 10 and then may swing along the connection position of the rotating wheel 10, as long as the rotating wheel 10 rotates to drive the fan 20 to rotate together.
As shown in fig. 2 and 3, the end surface of the outer end of the fan 20 of the heat sink of the embodiment of the present invention is provided with a groove 21. In the embodiment of the present invention, the depth of the groove formed at the outer end of the fan blade 20 of the heat dissipation device may be set arbitrarily, and the depth and the size may be set in a certain proportion according to the size of the fan blade 20, or the depth and the size of the groove may be kept at a certain size. It should be noted that the purpose of reducing noise of the heat dissipation device according to the embodiment of the present invention can be achieved by providing the groove 21 at the outer end of the fan blade 20 of the heat dissipation device.
In this example, the number of the grooves provided on the end surface of the outer end of the fan blade 20 is two or more, and may be three or four. The number of the grooves is determined according to the size of the end surface of the outer end of the fan blade 20 of the heat sink, when the end surface of the outer end of the fan blade 20 of the heat sink is large enough, more grooves can be arranged, and when the end surface of the outer end of the fan blade 20 of the heat sink is smaller, fewer grooves are arranged. When the depth and size of the slots formed at the outer end of the fan blade 20 of the heat sink can be set in a certain ratio according to the size of the fan blade 20, the number of the slots 21 formed at the end of each fan blade 20 is the same.
In the embodiment of the present invention, in the plurality of fan blades 20 in the heat dissipation device of the embodiment of the present invention, the manner of the groove provided on each fan blade 20 may be completely the same, or may be partially the same. The number of grooves may be different, or the shape of the grooves may be different, or the depth of the grooves may be different, etc.
By arranging the groove 21 structure at the outer end of the fan blade 20 of the heat dissipation device, the air outlet of the fan blade 20 of the heat dissipation device is not concentrated too much when the fan blade 20 rotates, so that the noise generated by the heat dissipation device is small enough.
According to the technical scheme of the embodiment of the invention, the grooves are formed on the end face of the end of the far rotating wheel 10 of the fan blade 20 of the heat dissipation device, when the fan blade of the heat dissipation device rotates, air is not excessively concentrated when flowing to an internal pressure area, so that the noise generated by the heat dissipation device is very low, the heat dissipation efficiency of the heat dissipation device is not reduced, and the heat dissipation effect of the heat dissipation device is well ensured.
EXAMPLE III
Fig. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the present invention, and as shown in fig. 1, the heat dissipation device according to the embodiment of the present invention includes: a rotating wheel 10 and more than one fan blade 20; a first end of the fan blade 20 is connected to the rotating wheel 10 and can rotate with the rotating wheel 10, and a second end of the fan blade 20 is a free end and is exposed on the peripheral surface of the rotating wheel; a groove is arranged on the end surface of the second end of the fan blade 20.
Fig. 2 is a front view of a heat dissipation device according to an embodiment of the present invention, and fig. 3 is another perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 2 and 3, the heat dissipation device according to the embodiment of the present invention is composed of a rotating wheel 10 and a plurality of blades 20 disposed on the rotating wheel 10. The centre bore 11 that supplies the rotation axis to wear to establish is provided with in the middle of the swiveling wheel 10, and the rotation axis of power supply machine wears to locate the centre bore 11 of swiveling wheel 10, and with swiveling wheel 10 fixed connection, when the motor starts, the rotation axis through the motor drives the flabellum 20 rotation on the heat abstractor, through the incessant rotation of flabellum 20, makes heat abstractor blow to waiting to dispel the heat part, and the heat that the messenger waited to dispel the heat part produced is taken away by the wind that blows off, reaches the radiating effect of treating the heat dissipation part.
Fig. 3 is another schematic perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 3, the fan blade 20 of the heat dissipation device according to the embodiment of the present invention is inclined toward one side of the center line of the central hole 11 of the rotating wheel 10, or the fan blade 20 is provided with a groove toward one side of the center line of the central hole 11 of the rotating wheel 10, so that when the fan blade 20 of the heat dissipation device rotates, the generated wind blows toward one side of the center line of the central hole 11 of the rotating wheel 10, so as to achieve the effect of dissipating heat of the component to be dissipated.
In order to make the air-out effect of the fan blades 20 of the heat dissipation device better, there is an overlapping portion between the fan blades 20, so that the air-out of the fan blades 20 of the heat dissipation device is toward the component to be dissipated, and will not leak in the opposite direction.
In the embodiment of the invention, the part to be radiated can be a part which is easy to generate heat in electronic equipment such as a CPU (central processing unit), a processing chip and the like.
As shown in fig. 2 and 3, the outer end of the fan blade 20 of the heat dissipation device of the embodiment of the invention is a free end, and the other end is connected to the rotating wheel 10. It should be noted that the fan 20 may be fixedly connected to the rotating wheel 10, or may be connected to the rotating wheel 10 and then may swing along the connection position of the rotating wheel 10, as long as the rotating wheel 10 rotates to drive the fan 20 to rotate together.
As shown in fig. 2 and 3, the end surface of the outer end of the fan 20 of the heat sink of the embodiment of the present invention is provided with a groove 21. In the embodiment of the present invention, the depth of the groove formed at the outer end of the fan blade 20 of the heat dissipation device may be set arbitrarily, and the depth and the size may be set in a certain proportion according to the size of the fan blade 20, or the depth and the size of the groove may be kept at a certain size. It should be noted that the purpose of reducing noise of the heat dissipation device according to the embodiment of the present invention can be achieved by providing the groove 21 at the outer end of the fan blade 20 of the heat dissipation device.
In this example, the number of the grooves provided on the end surface of the outer end of the fan blade 20 is two or more, and may be three or four. The number of the grooves is determined according to the size of the end surface of the outer end of the fan blade 20 of the heat sink, when the end surface of the outer end of the fan blade 20 of the heat sink is large enough, more grooves can be arranged, and when the end surface of the outer end of the fan blade 20 of the heat sink is smaller, fewer grooves are arranged. When the depth and size of the slots formed at the outer end of the fan blade 20 of the heat sink can be set in a certain ratio according to the size of the fan blade 20, the number of the slots 21 formed at the end of each fan blade 20 is the same.
As one implementation manner, in the embodiment of the present invention, in the plurality of blades 20 in the heat dissipation device of the embodiment of the present invention, the manner of the groove provided on each blade 20 may be completely the same, or may be partially the same. The number of grooves may be different, or the shape of the grooves may be different, or the depth of the grooves may be different, etc.
As shown in fig. 3, in this example, when two or more grooves are formed in the end surface of the outer end of the fan blade 20, the two or more grooves formed in the end surface of the outer end of the fan blade 20 form a corrugated groove. The wave-shaped grooves are arranged, so that the grooves 21 on the end surface of the outer end of the fan blade 20 form a streamline structure, and noise reduction of the heat dissipation device of the embodiment of the invention is facilitated.
In the embodiment of the present invention, the wavy grooves formed on the end surfaces of the outer ends of the fan blades 20 are distributed in an involute manner.
In the plurality of blades 20 of the heat dissipation device according to the embodiment of the present invention, the involute directions of the wave-shaped grooves of the blades are the same or different.
In the embodiment of the present invention, in the plurality of fan blades 20 in the heat dissipation device of the embodiment of the present invention, the manner of the groove provided on each fan blade 20 may be completely the same, or may be partially the same.
By arranging the groove 21 structure at the outer end of the fan blade 20 of the heat dissipation device, the air outlet of the fan blade 20 of the heat dissipation device is not concentrated too much when the fan blade 20 rotates, so that the noise generated by the heat dissipation device is small enough.
According to the technical scheme of the embodiment of the invention, the grooves are formed on the end face of the end of the far rotating wheel 10 of the fan blade 20 of the heat dissipation device, when the fan blade of the heat dissipation device rotates, air is not excessively concentrated when flowing to an internal pressure area, so that the noise generated by the heat dissipation device is very low, the heat dissipation efficiency of the heat dissipation device is not reduced, and the heat dissipation effect of the heat dissipation device is well ensured.
Example four
Fig. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the present invention, and as shown in fig. 1, the heat dissipation device according to the embodiment of the present invention includes: a rotating wheel 10 and more than one fan blade 20; a first end of the fan blade 20 is connected to the rotating wheel 10 and can rotate with the rotating wheel 10, and a second end of the fan blade 20 is a free end and is exposed on the peripheral surface of the rotating wheel; a groove is arranged on the end surface of the second end of the fan blade 20.
Fig. 2 is a front view of a heat dissipation device according to an embodiment of the present invention, and fig. 3 is another perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 2 and 3, the heat dissipation device according to the embodiment of the present invention is composed of a rotating wheel 10 and a plurality of blades 20 disposed on the rotating wheel 10. The centre bore 11 that supplies the rotation axis to wear to establish is provided with in the middle of the swiveling wheel 10, and the rotation axis of power supply machine wears to locate the centre bore 11 of swiveling wheel 10, and with swiveling wheel 10 fixed connection, when the motor starts, the rotation axis through the motor drives the flabellum 20 rotation on the heat abstractor, through the incessant rotation of flabellum 20, makes heat abstractor blow to waiting to dispel the heat part, and the heat that the messenger waited to dispel the heat part produced is taken away by the wind that blows off, reaches the radiating effect of treating the heat dissipation part.
Fig. 3 is another schematic perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 3, the fan blade 20 of the heat dissipation device according to the embodiment of the present invention is inclined toward one side of the center line of the central hole 11 of the rotating wheel 10, or the fan blade 20 is provided with a groove toward one side of the center line of the central hole 11 of the rotating wheel 10, so that when the fan blade 20 of the heat dissipation device rotates, the generated wind blows toward one side of the center line of the central hole 11 of the rotating wheel 10, so as to achieve the effect of dissipating heat of the component to be dissipated.
In order to make the air-out effect of the fan blades 20 of the heat dissipation device better, there is an overlapping portion between the fan blades 20, so that the air-out of the fan blades 20 of the heat dissipation device is toward the component to be dissipated, and will not leak in the opposite direction.
In the embodiment of the invention, the part to be radiated can be a part which is easy to generate heat in electronic equipment such as a CPU (central processing unit), a processing chip and the like.
As shown in fig. 2 and 3, the outer end of the fan blade 20 of the heat dissipation device of the embodiment of the invention is a free end, and the other end is connected to the rotating wheel 10. It should be noted that the fan 20 may be fixedly connected to the rotating wheel 10, or may be connected to the rotating wheel 10 and then may swing along the connection position of the rotating wheel 10, as long as the rotating wheel 10 rotates to drive the fan 20 to rotate together.
As shown in fig. 2 and 3, the end surface of the outer end of the fan 20 of the heat sink of the embodiment of the present invention is provided with a groove 21. In the embodiment of the present invention, the depth of the groove formed at the outer end of the fan blade 20 of the heat dissipation device may be set arbitrarily, and the depth and the size may be set in a certain proportion according to the size of the fan blade 20, or the depth and the size of the groove may be kept at a certain size. It should be noted that the purpose of reducing noise of the heat dissipation device according to the embodiment of the present invention can be achieved by providing the groove 21 at the outer end of the fan blade 20 of the heat dissipation device.
In this example, the number of the grooves provided on the end surface of the outer end of the fan blade 20 is two or more, and may be three or four. The number of the grooves is determined according to the size of the end surface of the outer end of the fan blade 20 of the heat sink, when the end surface of the outer end of the fan blade 20 of the heat sink is large enough, more grooves can be arranged, and when the end surface of the outer end of the fan blade 20 of the heat sink is smaller, fewer grooves are arranged. When the depth and size of the slots formed at the outer end of the fan blade 20 of the heat sink can be set in a certain ratio according to the size of the fan blade 20, the number of the slots 21 formed at the end of each fan blade 20 is the same.
In this example, when the number of the slots provided in the end surface of the outer end of the fan blade 20 is two or more, the shape of each of the plurality of slots provided in the end surface of the outer end of the fan blade 20 is completely the same.
By arranging the groove 21 structure at the outer end of the fan blade 20 of the heat dissipation device, the air outlet of the fan blade 20 of the heat dissipation device is not concentrated too much when the fan blade 20 rotates, so that the noise generated by the heat dissipation device is small enough.
According to the technical scheme of the embodiment of the invention, the groove 21 is arranged on the end face of the end of the far rotating wheel 10 of the fan blade 20 of the heat dissipation device, when the fan blade of the heat dissipation device rotates, air is not excessively concentrated when flowing to an internal pressure area, so that the noise generated by the heat dissipation device is very low, the heat dissipation efficiency of the heat dissipation device is not reduced, and the heat dissipation effect of the heat dissipation device is well ensured.
EXAMPLE five
Fig. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the present invention, and as shown in fig. 1, the heat dissipation device according to the embodiment of the present invention includes: a rotating wheel 10 and more than one fan blade 20; a first end of the fan blade 20 is connected to the rotating wheel 10 and can rotate with the rotating wheel 10, and a second end of the fan blade 20 is a free end and is exposed on the peripheral surface of the rotating wheel; a groove is arranged on the end surface of the second end of the fan blade 20.
Fig. 2 is a front view of a heat dissipation device according to an embodiment of the present invention, and fig. 3 is another perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 2 and 3, the heat dissipation device according to the embodiment of the present invention is composed of a rotating wheel 10 and a plurality of blades 20 disposed on the rotating wheel 10. The centre bore 11 that supplies the rotation axis to wear to establish is provided with in the middle of the swiveling wheel 10, and the rotation axis of power supply machine wears to locate the centre bore 11 of swiveling wheel 10, and with swiveling wheel 10 fixed connection, when the motor starts, the rotation axis through the motor drives the flabellum 20 rotation on the heat abstractor, through the incessant rotation of flabellum 20, makes heat abstractor blow to waiting to dispel the heat part, and the heat that the messenger waited to dispel the heat part produced is taken away by the wind that blows off, reaches the radiating effect of treating the heat dissipation part.
Fig. 3 is another schematic perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 3, the fan blade 20 of the heat dissipation device according to the embodiment of the present invention is inclined toward one side of the center line of the central hole 11 of the rotating wheel 10, or the fan blade 20 is provided with a groove toward one side of the center line of the central hole 11 of the rotating wheel 10, so that when the fan blade 20 of the heat dissipation device rotates, the generated wind blows toward one side of the center line of the central hole 11 of the rotating wheel 10, so as to achieve the effect of dissipating heat of the component to be dissipated.
In order to make the air-out effect of the fan blades 20 of the heat dissipation device better, there is an overlapping portion between the fan blades 20, so that the air-out of the fan blades 20 of the heat dissipation device is toward the component to be dissipated, and will not leak in the opposite direction.
In the embodiment of the invention, the part to be radiated can be a part which is easy to generate heat in electronic equipment such as a CPU (central processing unit), a processing chip and the like.
As shown in fig. 2 and 3, the outer end of the fan blade 20 of the heat dissipation device of the embodiment of the invention is a free end, and the other end is connected to the rotating wheel 10. It should be noted that the fan 20 may be fixedly connected to the rotating wheel 10, or may be connected to the rotating wheel 10 and then may swing along the connection position of the rotating wheel 10, as long as the rotating wheel 10 rotates to drive the fan 20 to rotate together.
As shown in fig. 2 and 3, the end surface of the outer end of the fan 20 of the heat sink of the embodiment of the present invention is provided with a groove 21. In the embodiment of the present invention, the depth of the groove formed at the outer end of the fan blade 20 of the heat dissipation device may be set arbitrarily, and the depth and the size may be set in a certain proportion according to the size of the fan blade 20, or the depth and the size of the groove may be kept at a certain size. It should be noted that the purpose of reducing noise of the heat dissipation device according to the embodiment of the present invention can be achieved by providing the groove 21 at the outer end of the fan blade 20 of the heat dissipation device.
In this example, the number of the grooves provided on the end surface of the outer end of the fan blade 20 is two or more, and may be three or four. The number of the grooves is determined according to the size of the end surface of the outer end of the fan blade 20 of the heat sink, when the end surface of the outer end of the fan blade 20 of the heat sink is large enough, more grooves can be arranged, and when the end surface of the outer end of the fan blade 20 of the heat sink is smaller, fewer grooves are arranged. When the depth and size of the slots formed at the outer end of the fan blade 20 of the heat sink can be set in a certain ratio according to the size of the fan blade 20, the number of the slots 21 formed at the end of each fan blade 20 is the same.
As shown in fig. 3, in this example, when the number of the grooves provided in the end surface of the outer end of the blade 20 is two or more, the shape of each of the plurality of grooves provided in the end surface of the outer end of the blade 20 is not all the same, and may be completely different or partially different. At this time, the plurality of grooves 21 are preferably formed as wave-shaped grooves. The grooves 21 on the end face of the outer end of the fan blade 20 can form a streamline structure by forming the wave-shaped grooves 21 by the plurality of grooves 21, which is more beneficial to noise reduction of the heat dissipation device of the embodiment of the invention.
In the embodiment of the present invention, the wavy grooves formed on the end surfaces of the outer ends of the fan blades 20 are distributed in an involute manner.
As one implementation manner, in the embodiment of the present invention, in the plurality of blades 20 in the heat dissipation device of the embodiment of the present invention, the manner of the groove provided on each blade 20 may be completely the same, or may be partially the same. The number of the grooves may be different, the shapes of the grooves may be different, the depths of the grooves may be different, or the involute patterns of the wave-shaped grooves may be different.
By arranging the groove 21 structure at the outer end of the fan blade 20 of the heat dissipation device, the air outlet of the fan blade 20 of the heat dissipation device is not concentrated too much when the fan blade 20 rotates, so that the noise generated by the heat dissipation device is small enough.
According to the technical scheme of the embodiment of the invention, the groove 21 is arranged on the end face of the end of the far rotating wheel 10 of the fan blade 20 of the heat dissipation device, when the fan blade of the heat dissipation device rotates, air is not excessively concentrated when flowing to an internal pressure area, so that the noise generated by the heat dissipation device is very low, the heat dissipation efficiency of the heat dissipation device is not reduced, and the heat dissipation effect of the heat dissipation device is well ensured.
In the embodiment of the present invention, the involute directions of the wave-shaped grooves of each of the fan blades 20 in the more than one fan blades 20 are the same or different.
EXAMPLE six
Fig. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the present invention, and as shown in fig. 1, the heat dissipation device according to the embodiment of the present invention includes: a rotating wheel 10 and more than one fan blade 20; a first end of the fan blade 20 is connected to the rotating wheel 10 and can rotate with the rotating wheel 10, and a second end of the fan blade 20 is a free end and is exposed on the peripheral surface of the rotating wheel; a groove is arranged on the end surface of the second end of the fan blade 20. As one implementation manner, the heat dissipation apparatus of the embodiment of the present invention further includes a motor (not shown in the figure) inserted into the central hole 11 of the rotating wheel; the motor can drive the rotating wheel to rotate. The motor can be powered by the electronic device equipped with the heat dissipation device of the embodiment of the invention, and the rotating wheel 10 is driven to rotate, so that the fan blades 20 rotate, and heat dissipation is performed on components to be dissipated, such as a CPU (central processing unit) of the electronic device.
Fig. 2 is a front view of a heat dissipation device according to an embodiment of the present invention, and fig. 3 is another perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 2 and 3, the heat dissipation device according to the embodiment of the present invention is composed of a rotating wheel 10 and a plurality of blades 20 disposed on the rotating wheel 10. The centre bore 11 that supplies the rotation axis to wear to establish is provided with in the middle of the swiveling wheel 10, and the rotation axis of power supply machine wears to locate the centre bore 11 of swiveling wheel 10, and with swiveling wheel 10 fixed connection, when the motor starts, the rotation axis through the motor drives the flabellum 20 rotation on the heat abstractor, through the incessant rotation of flabellum 20, makes heat abstractor blow to waiting to dispel the heat part, and the heat that the messenger waited to dispel the heat part produced is taken away by the wind that blows off, reaches the radiating effect of treating the heat dissipation part.
Fig. 3 is another schematic perspective view of the heat dissipation device according to the embodiment of the present invention, as shown in fig. 3, the fan blade 20 of the heat dissipation device according to the embodiment of the present invention is inclined toward one side of the center line of the central hole 11 of the rotating wheel 10, or the fan blade 20 is provided with a groove toward one side of the center line of the central hole 11 of the rotating wheel 10, so that when the fan blade 20 of the heat dissipation device rotates, the generated wind blows toward one side of the center line of the central hole 11 of the rotating wheel 10, so as to achieve the effect of dissipating heat of the component to be dissipated.
In order to make the air-out effect of the fan blades 20 of the heat dissipation device better, there is an overlapping portion between the fan blades 20, so that the air-out of the fan blades 20 of the heat dissipation device is toward the component to be dissipated, and will not leak in the opposite direction.
In the embodiment of the invention, the part to be radiated can be a part which is easy to generate heat in electronic equipment such as a CPU (central processing unit), a processing chip and the like.
As shown in fig. 2 and 3, the outer end of the fan blade 20 of the heat dissipation device of the embodiment of the invention is a free end, and the other end is connected to the rotating wheel 10. It should be noted that the fan 20 may be fixedly connected to the rotating wheel 10, or may be connected to the rotating wheel 10 and then may swing along the connection position of the rotating wheel 10, as long as the rotating wheel 10 rotates to drive the fan 20 to rotate together.
As shown in fig. 2 and 3, the outer end of the fan blade 20 of the heat sink of the embodiment of the present invention is provided with a groove 21. In the embodiment of the present invention, the depth of the groove formed at the outer end of the fan blade 20 of the heat dissipation device may be set arbitrarily, and the depth and the size may be set in a certain proportion according to the size of the fan blade 20, or the depth and the size of the groove may be kept at a certain size. It should be noted that the purpose of reducing noise of the heat dissipation device according to the embodiment of the present invention can be achieved by providing the groove 21 at the outer end of the fan blade 20 of the heat dissipation device.
By arranging the groove 21 structure at the outer end of the fan blade 20 of the heat dissipation device, the air outlet of the fan blade 20 of the heat dissipation device is not concentrated too much when the fan blade 20 rotates, so that the noise generated by the heat dissipation device is small enough.
According to the technical scheme of the embodiment of the invention, the grooves are formed on the end face of the end of the far rotating wheel 10 of the fan blade 20 of the heat dissipation device, when the fan blade of the heat dissipation device rotates, air is not excessively concentrated when flowing to an internal pressure area, so that the noise generated by the heat dissipation device is very low, the heat dissipation efficiency of the heat dissipation device is not reduced, and the heat dissipation effect of the heat dissipation device is well ensured.
EXAMPLE seven
The embodiment of the invention describes an electronic device, and the electronic device is provided with the heat dissipation device of each embodiment.
It should be noted that the electronic device according to the embodiment of the present invention may be any electronic device such as a mobile phone, a tablet computer, a PAD, a game machine, a personal computer, a camera, a projector, and the like. The heat dissipation device in each of the foregoing embodiments can be installed in a heat dissipation member of an electronic device as long as the heat dissipation member needs to dissipate heat.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A heat dissipation device, the device comprising: the rotating wheel and more than one fan blade; the first ends of the fan blades are connected to the rotating wheel and can rotate along with the rotating wheel, and the second ends of the fan blades are free ends and are exposed on the peripheral surface of the rotating wheel; a groove is formed in the end face of the second end of the fan blade; the fan blade is provided with the recess towards one side of the central line of the centre bore of swiveling wheel, when the fan blade is rotatory, produced wind blows towards one side of the central line of the centre bore of swiveling wheel.
2. The heat dissipating device of claim 1, wherein the number of the slots formed on the end surface of the second end of the fan blade is two or more.
3. The heat dissipating device of claim 2, wherein two or more slots formed on the end surface of the second end of the fan blade form a corrugated groove.
4. The heat dissipating device of claim 3, wherein each of the two or more slots provided on the end surface of the second end of the fan blade has the same shape.
5. The heat dissipating device of claim 3, wherein each of the two or more slots provided on the end surface of the second end of the fan blade has a different shape.
6. The heat dissipating device of claim 3, wherein the shape of a portion of the two or more slots formed in the end surface of the second end of the fan blade is the same.
7. The heat dissipating device of any of claims 3 to 6, wherein the wave shaped grooves are distributed in an involute manner.
8. The heat dissipating device of claim 7, wherein the involute direction of each of the plurality of blades is the same or different.
9. The heat dissipating device of claim 7, wherein the rotating wheel is provided with a central hole; the device further comprises: the motor penetrates through the center hole of the rotating wheel; the motor can drive the rotating wheel to rotate.
10. An electronic device, wherein the heat dissipation apparatus according to any one of claims 1 to 9 is provided in the electronic device.
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| CN201610157352.7A CN105658038B (en) | 2016-03-18 | 2016-03-18 | Heat dissipation device and electronic equipment |
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| CN201610157352.7A CN105658038B (en) | 2016-03-18 | 2016-03-18 | Heat dissipation device and electronic equipment |
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| US6568909B2 (en) * | 2001-09-26 | 2003-05-27 | General Electric Company | Methods and apparatus for improving engine operation |
| GB0513377D0 (en) * | 2005-06-30 | 2005-08-03 | Rolls Royce Plc | A blade |
| JP2007009831A (en) * | 2005-07-01 | 2007-01-18 | Matsushita Electric Ind Co Ltd | Impeller and blower fan equipped with it |
| TWM292888U (en) * | 2005-12-30 | 2006-06-21 | Sheng-An Yang | Heat-dissipating fan |
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