CN109737078B - Fan and electronic equipment - Google Patents
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- CN109737078B CN109737078B CN201811653728.9A CN201811653728A CN109737078B CN 109737078 B CN109737078 B CN 109737078B CN 201811653728 A CN201811653728 A CN 201811653728A CN 109737078 B CN109737078 B CN 109737078B
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Abstract
The present disclosure provides a fan and an electronic apparatus, the fan including fan blades, wherein: at least partial area of the fan blade is made of memory material; under a first condition, the memory material is in a first state, and the fan blade is in a first fan blade shape; under a second condition, the memory material is in a second state, and the fan blade is in a second fan blade shape; and under the condition that the fan blades are in the first fan blade shape or the second fan blade shape, the air volume provided by the fan at the same rotating speed is different. The electronic device includes a fan.
Description
Technical Field
The present disclosure relates to a fan and an electronic apparatus.
Background
With the development of scientific technology, electronic devices are changing day by day, and the performance requirements for devices such as notebook computers, computer hosts, servers and the like are higher and higher, wherein a heat dissipation structure plays a crucial role in the operation of components such as CPUs and the like, when the electronic devices are in large operation calculation demand or operate in a high-temperature environment, the heat dissipation devices are required to provide large air volume, but when the calculation demand is small or a user wants to be in a quiet environment, the noise of the heat dissipation devices is required to be small, for existing heat dissipation devices such as fans, the sizes of the existing heat dissipation devices are fixed, the air volume can be adjusted only by adjusting the rotating speed, but in many cases, the setting cannot meet the requirements of the devices.
Disclosure of Invention
In view of this, the present disclosure provides a fan including fan blades, wherein: at least partial area of the fan blade is made of memory material; under a first condition, the memory material is in a first state, and the fan blade is in a first fan blade shape; under a second condition, the memory material is in a second state, and the fan blade is in a second fan blade shape; under the condition that the fan blades present the first fan blade form and the second fan blade form, the air volume provided by the fan at the same rotating speed is different.
According to an embodiment of the present disclosure, the first condition includes: the temperature of the environment where the fan is located is within a first temperature range; the second condition includes: the temperature of the environment in which the fan is located is within a second temperature range; wherein the first temperature range comprises a lower temperature value than the second temperature range; under the condition of the same rotating speed, the air volume provided by the fan when the fan blades are in the first fan blade shape is smaller than the air volume provided by the fan when the fan blades are in the second fan blade shape.
According to an embodiment of the present disclosure, the fan blade includes a main body region and an edge region, the material of the edge region is a memory material; in the first condition, the edge region is in a folded state and at least partially overlaps one side of the main body region, and the surface area of the fan blade is a first area; under the second condition, the edge region is in a unfolding state, the edge region extends outwards along the edge of the main body region, and the surface area of the fan blade is a second area.
According to an embodiment of the present disclosure, the fan further includes a hub, wherein: the fan blade comprises a fan blade and an elastic component, and the elastic component is made of memory materials; the elastic component is arranged in the fan hub, one end of the elastic component is fixed with the fan hub, the other end of the elastic component is connected with the fan blade, one part of the fan blade is positioned in the fan hub, and the other part of the fan blade extends out of the fan hub to serve as a wind bearing surface; under the first condition, the elastic part is in a contracted state, and the length of the fan blade extending out of the fan hub is a first length; under the second condition, the elastic component is in an extension state, and the length of the fan blade extending out of the fan hub is a second length.
According to the embodiment of the disclosure, the fan blade comprises a flat area and a folded area, the folded area is made of a memory material, and the folded area can stretch and contract along a first direction; under the first condition, the fold area is in a fold state, and the length of the fan blade in the first direction is a third length; under the second condition, the fold area is in an extended state, and the length of the fan blade in the first direction is a fourth length.
According to the embodiment of the disclosure, the fan blade is made of a memory material; under the first condition, the fan blade is at a first curvature and a first inclination angle; under the second condition, the fan blades are at a second curvature and a second inclination angle.
According to the embodiment of the present disclosure, the fan further includes a fan frame disposed at the periphery of the fan blade, wherein: the fan frame is in a circular ring shape, and at least part of area of the fan frame is made of memory material; under the first condition, the fan frame is in a first fan frame shape and is matched with the first fan blade shape; under the second condition, the fan frame is in a second fan frame shape and is matched with the second fan blade shape.
According to the embodiment of the disclosure, the transverse section of the fan frame is in a spiral line shape and comprises a circular ring and an overlapping area partially overlapped with the circular ring, and the material of the fan frame is a memory material; under the first condition, the width of the overlapping area is a first width, and the diameter of the fan frame is a first diameter; under the second condition, the width of the overlapping area is a second width, and the diameter of the fan frame is a second diameter.
According to an embodiment of the present disclosure, the fan frame includes a fan frame wrinkle area, and a material of the fan frame wrinkle area is a memory material; under the first condition, the fan frame corrugation area is in a corrugation state, and the diameter of the fan frame is a third diameter; under the second condition, the fan frame fold area is in an extended state, and the diameter of the fan frame is a fourth diameter.
The present disclosure also provides an electronic device, including a fan, wherein: the fan comprises fan blades, wherein at least partial area of the fan blades is made of memory materials; under a first condition, the memory material is in a first state, and the fan blade is in a first fan blade shape; under a second condition, the memory material is in a second state, and the fan blade is in a second fan blade shape; under the condition that the fan blades present the first fan blade form and the second fan blade form, the air volume provided by the fan at the same rotating speed is different.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:
fig. 1 schematically illustrates an application scenario of a fan according to an embodiment of the present disclosure;
FIG. 2 schematically illustrates a schematic view of a fan according to an embodiment of the disclosure.
FIG. 3A schematically illustrates a schematic blade surface view of a fan blade in a first blade configuration according to an embodiment of the disclosure;
FIG. 3B is a schematic side view of a fan blade in a first blade configuration according to an embodiment of the disclosure
FIG. 3C schematically illustrates a fan with blades in a first blade configuration according to an embodiment of the disclosure;
FIG. 4A schematically illustrates a blade surface view of a fan blade in a second blade configuration according to an embodiment of the disclosure;
FIG. 4B schematically illustrates a side view of a fan blade in a second blade configuration according to an embodiment of the disclosure;
FIG. 4C schematically illustrates a fan with blades in a second blade configuration according to an embodiment of the disclosure;
FIG. 5 schematically illustrates a fan blade and a fan hub according to another embodiment of the disclosure.
FIG. 6 schematically illustrates a fan blade and a fan hub according to yet another embodiment of the disclosure;
FIG. 7A schematically illustrates a fan blade in accordance with an embodiment of the present disclosure at different curvatures;
FIG. 7B schematically illustrates a fan blade at different tilt angles according to an embodiment of the disclosure;
FIG. 8 schematically illustrates a schematic view of a fan frame according to an embodiment of the disclosure;
fig. 9 schematically illustrates a schematic view of a fan frame according to another embodiment of the present disclosure.
Detailed Description
Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, operations, and/or components, but do not preclude the presence or addition of one or more other features, operations, or components.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.
Where a convention analogous to "at least one of A, B and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a device having at least one of A, B and C" would include but not be limited to devices having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a device having at least one of A, B or C" would include but not be limited to devices having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase "a or B" should be understood to include the possibility of "a" or "B", or "a and B".
An embodiment of the present disclosure provides a fan, including the flabellum, wherein: at least partial area of the fan blade is made of memory material; under a first condition, the memory material is in a first state, and the fan blade is in a first fan blade shape; under a second condition, the memory material is in a second state, and the fan blade is in a second fan blade shape; under the condition that the fan blades present the first fan blade form and the second fan blade form, the air volume provided by the fan at the same rotating speed is different.
The fan provided by the embodiment of the disclosure comprises a memory material, wherein the memory material has a shape memory function and at least has two forms, and the corresponding forms can be automatically changed according to environmental conditions under the condition of no external force. Therefore, under different environmental conditions, the shape of the fan can be changed along with the change of the memory material, for example, the effective area of the fan blade can be reduced or enlarged, so that the fan can adapt to different heat dissipation requirements and dynamically improve the heat dissipation capability of the fan. The effective area of the fan blade may be the area of the windward side of the fan blade, and is also referred to as the blade area hereinafter.
Fig. 1 schematically illustrates an application scenario of a fan according to an embodiment of the present disclosure. It should be noted that fig. 1 is only an example of an application scenario of a combined device to which the embodiments of the present disclosure may be applied to help those skilled in the art understand the technical content of the present disclosure, but does not mean that the embodiments of the present disclosure may not be applied to other devices, environments or scenarios.
As shown in fig. 1, the fan 100 of the embodiment of the disclosure may be used in an electronic device, for example, the electronic device may be a notebook computer 1, and the fan 100 may dissipate heat for the notebook computer 1. Hardware devices inside the notebook computer 1, such as a CPU processor, a graphics card, etc., generate a large amount of heat during the operation process, and if the heat is not discharged in time, the notebook computer 1 may not operate normally. The fan 100 may be disposed at a position near the air outlet on one side of the main board, and the fan blades rotate to enable air in the inner space of the notebook computer 1 to flow, so as to bring heat out of the notebook computer 1.
It is understood that the application scenario in fig. 1 is only an example, and the fan may be applied to other electronic devices that need to dissipate heat, such as a desktop computer, a kiosk, and the like, besides a notebook computer.
Fig. 2 schematically illustrates a schematic diagram of a fan 100 according to an embodiment of the disclosure.
As shown in fig. 2, the fan 100 may include fan blades 110, a hub 120, and a fan frame 130. The fan blades 110 and the fan hub 120 are disposed inside the fan frame 130, and the fan hub 120 is located at the center and can be used for fixing the fan blades 110. The number of the fan blades 110 may be plural, and the plural fan blades 110 may be uniformly arranged along the circumferential surface of the hub 120.
At least part of the fan blade 110 may be made of memory material, and part of the fan blade 110 may be made of memory material, or all of the fan blade may be made of memory material. The memory material may be, for example, a memory alloy, which has a shape memory effect and can take on different forms with the change of the environmental temperature, for example, a curved state at a low temperature, a straightened state at a high temperature, and a straightened state at a low temperature. The memory alloy can be made to memorize a desired shape by a memory heat treatment.
According to an embodiment of the present disclosure, under a first condition, the memory material is in a first state, and the fan blade 110 is in a first fan blade shape; under the second condition, the memory material is in the second state, and the fan blade 110 is in the second fan blade shape.
Since the factor causing the shape change of the memory alloy may be temperature, the first condition and the second condition may be temperature-dependent conditions. As the temperature changes, the memory material may change between a first state and a second state, with the fan blade 110 subsequently assuming a different configuration.
According to the embodiment of the present disclosure, when the fan blades 110 are in the first blade configuration and the second blade configuration, the air volume provided by the fan 110 at the same rotation speed is different.
The amount of air supplied by the fan 110 is related to the rotation speed and the shape parameters of the fan blades, and the shape parameters of the fan blades may include parameters related to the shape and size of the fan blades, such as the size of the area of the fan blades, the inclination angle, or the curvature of the fan blades. Therefore, when the fan blades 110 are in the non-use state, the air volume provided by the fan at the same rotation speed is different.
According to the embodiment of the disclosure, the fan comprises the memory material, the memory material has a shape memory function and at least has two forms, and the corresponding forms can be automatically changed according to environmental conditions under the action of no external force. Therefore, under different environmental conditions, the shape of the fan can be changed along with the change of the memory material, for example, the area of the fan can be reduced or enlarged, so that the fan can adapt to different heat dissipation requirements, and the heat dissipation capability of the fan is dynamically improved.
In the running process of the notebook computer, the temperature of the hardware of the notebook computer also changes along with the change of the running load. For example, the cpu may be at about 40 ℃ during normal idle, about 60 ℃ during busy hours, and up to more than 70 ℃ during full speed operation. The normal operation of the notebook computer is affected when the temperature of the hardware is high, so that the air volume of the fan needs to be increased to accelerate the heat dissipation at high temperature.
According to an embodiment of the present disclosure, the first condition may include: the temperature of the environment in which the fan is located is within a first temperature range; the second condition may include: the temperature of the environment in which the fan is located is within a second temperature range; wherein the first temperature range comprises a lower temperature value than the second temperature range.
For example, the first temperature range may be, for example, a range below temperature A, and the second temperature range may be, for example, a range above temperature A, which may serve as a temperature that triggers a change in shape of the memory alloy. For a notebook computer, the temperature a may be, for example, 50 ℃, when the temperature of the environment where the fan is located is lower than 50 ℃, the fan blade 110 is in the first fan blade shape, when the temperature is higher than 50 ℃, the memory alloy deforms, the fan blade 110 is changed into the second fan blade shape, when the temperature drops to below 50 ℃, the memory alloy deforms again, and returns to the original state, and the fan blade 110 also returns to the first fan blade shape. In other embodiments of the present disclosure, the temperature a may be other temperature values.
The memory alloys are widely used and include Ni-Ti alloys, Cu alloys and Fe alloys. The shape memory effect of memory alloys is achieved by the transformation of austenite and martensite, and the alloy composition can affect the transformation temperature of the alloy, for example, for Ni-Ti alloys, the content of Ni is increased, and the transformation temperature starting point and the transformation temperature end point of the alloy are both reduced. In contrast, if the content of Ti increases, both the starting point and the end point of the deformation temperature of the alloy increase. Therefore, the phase transition temperature of the alloy, namely the temperature for triggering the shape change of the memory alloy can be adjusted by adjusting the content of each element of the alloy so as to meet the application requirements.
The first temperature range corresponds to the first fan shape, and the second temperature range corresponds to the second fan shape. Since the second temperature range contains higher temperatures, the fan is required to provide a greater amount of air. Under the condition of the same rotating speed, the air volume provided by the fan when the fan blade is in the second fan blade shape needs to be larger than the air volume provided by the fan when the fan blade is in the first fan blade shape, so that the heat dissipation requirement under high temperature is met.
Fig. 3A schematically illustrates a schematic blade surface view of a fan blade 110 in a first fan blade configuration according to an embodiment of the disclosure;
FIG. 3B is a schematic side view of fan blade 110 in the first blade configuration according to an embodiment of the disclosure
FIG. 3C schematically illustrates a fan with fan blades 110 in a first blade configuration according to an embodiment of the disclosure;
as shown in fig. 3A to 3C, according to the embodiment of the present disclosure, the fan blade 110 includes a main body region 111 and an edge region 112, and at least the material of the edge region 112 is a memory material. The edge region 112 has at least two memory states: a folded state and an unfolded state.
In the first condition, the edge region 112 is in a folded state with the edge portion folded back, the folded state being a first blade configuration with the surface area of the blade being a first area.
It should be noted that, for convenience of description, the thickness of the fan blade depicted in the drawings is large, and particularly, the thickness of the folded portion is obvious, but in practice, the thickness of the fan blade is small, and even if the thickness of the fan blade is thin after being folded, the fan blade is in a sheet shape, and the thickness of the folded portion is not obviously different from that of other portions.
The edge region 112 may be, for example, a region of the fan blade 110 near the fan frame 130. In other embodiments of the present disclosure, the edge region 112 may also be other regions on the fan blade 110, and only the area of the fan blade 110 can be increased after the edge region 112 is unfolded.
The shape of the fan blade 110 may be, for example, a rectangle, and under the first condition, the length of the fan blade 110 is a length a, the area of the windward side of the fan blade 110 is a folded area, and the surface area of the fan blade is a first area a × b. The shape of the fan blade is only illustrated in the drawings, and in other embodiments of the present disclosure, the fan blade 110 may have any other shape, and may be straight or curved.
Fig. 4A schematically illustrates a schematic blade surface view of a fan blade 110 in a second fan blade configuration according to an embodiment of the disclosure;
FIG. 4B is a schematic side view of fan blade 110 in a second blade configuration according to an embodiment of the disclosure;
FIG. 4C schematically illustrates a fan with fan blades 110 in a second blade configuration according to an embodiment of the disclosure;
as shown in fig. 4A to 4C, under the second condition, the edge region 112 is in the unfolded state, the folded portion is opened, the edge region 112 extends outwards along the edge of the main region 111, the extending outwards along the edge of the main region 111 may be towards the fan frame 130, and the surface area of the fan blade is the second area.
The shape of the fan blade 110 may be, for example, a rectangle, and under the second condition, the length of the fan blade 110 may be, for example, a length c, the area of the windward side of the fan blade 110 may be an unfolded area, and the surface area of the fan blade may be, for example, a second area c × b. It is understood that c is greater than a.
The second area is larger than the first area, the windward area of the fan blade is enlarged, and the air volume provided by the fan is enlarged accordingly.
In other embodiments of the present disclosure, the fan blade 110 may also be made of a memory material, that is, the main body region 111 and the edge region 112 are made of a memory material, and the main body region 111 and the edge region 112 are integrally formed.
According to the embodiment of the disclosure, the memory material is utilized to convert the fan blades between the folding state and the unfolding state so as to realize the adjustment of the area of the fan blades, and the fan blade has a simple structure and an obvious effect.
FIG. 5 schematically illustrates a fan blade and a fan hub according to another embodiment of the disclosure.
As shown in fig. 5, the fan blade 110 includes a fan blade 113 and an elastic member 114 according to an embodiment of the present disclosure. The elastic member 114 is disposed in the hub 120, one end of the elastic member 114 is fixedly connected to the hub 120, and the other end of the elastic member 114 is fixedly connected to the fan blade 113. A portion of the fan blades 113 is located inside the fan hub 120, and another portion extends out of the fan hub 120, and the portion extending out of the fan hub 120 serves as a wind receiving portion.
Wherein, the elastic component 114 can be a spring, for example, and at least the material of the elastic component 114 is a memory material, which includes: only the elastic component 114 on the fan blade 110 is made of memory material, and the fan blade 113 is made of common material; or the elastic member 114 and the fan blade 113 are made of memory materials. The elastic member 114 has at least two memory states: a contracted state and an extended state.
In a first condition, for example at a temperature lower than its deformation temperature, the elastic element 114 is in a contracted state and the sector 113 extends beyond the hub 120 by a first length L1.
Under a second condition, for example, when the temperature is higher than the deformation temperature, the elastic member 114 is converted into an extended state, and the fan blades 113 move outwards along with the extended state, so that the length of the fan blades 113 extending out of the fan hub 120 is increased to a second length L2.
The second length may be greater than the first length, so that the area of the fan blade 113 outside the fan hub is larger under the second condition than under the first condition, and the air volume provided by the fan is larger under the same rotation speed.
According to the embodiment of the disclosure, the length of the part of the fan blade extending out of the fan hub can be controlled by utilizing the shape memory effect of the elastic component, so that the area of the wind bearing part of the fan blade is controlled, and the material deformation is realized in the fan hub without influencing the normal rotation of the external fan blade.
FIG. 6 schematically illustrates a fan blade and a fan hub according to yet another embodiment of the disclosure.
As shown in fig. 6, according to the embodiment of the present disclosure, the fan blade 110 includes a flat region 115 and a wrinkled region 116, at least the material of the wrinkled region 116 is a memory material, and the wrinkled region 116 can be stretched in a first direction.
At least the material of the fold region 116 is a memory material comprising: only the wrinkled area 116 of the fan blade 110 is made of memory material, and the flat area 115 is made of other materials; alternatively, the material of the flat region 115 and the corrugated region 116 is a memory material, and is integrally formed. The fold region 116 has at least two memory states: a wrinkled state and an extended state.
Under a first condition, for example, when the temperature is lower than the deformation temperature, the crumpled region 116 is in a crumpled state and is deformed in a continuous wave-like bending manner, and the length of the fan blade 110 in the first direction is the third length L3.
Under a second condition, for example, when the temperature is higher than the deformation temperature, the wrinkle region 116 is in an extended state, the continuous wave-like curve extends to be straight, and the length of the fan blade 110 in the first direction increases to a fourth length L4.
The fourth length may be greater than the third length, so that the area of the fan blade 110 is larger under the second condition than the first condition, and the air volume provided by the fan is larger under the same rotation speed.
Fig. 7A schematically illustrates a fan blade in accordance with an embodiment of the disclosure at different curvatures.
As shown in fig. 7A, according to the embodiment of the present disclosure, the material of the fan blade 110 is a memory material. The fan blade 110 has at least two memory forms: a first curvature state and a second curvature state.
Under a first condition, for example at a temperature below its deformation temperature, the fan blade is at a first curvature. The first curvature may be, for example, a curvature value of 0, i.e., the fan blade is straight.
Under a second condition, for example at a temperature above its deformation temperature, the fan blade is at a second curvature. The first curvature may be, for example, a value of curvature greater than 0, i.e., the fan blade is curved.
The second curvature is larger than the first curvature, the larger the curvature value of the fan blade is, the larger the wind pressure is under the same rotating speed, and the larger the wind volume provided by the fan is.
FIG. 7B schematically illustrates a fan blade at different tilt angles according to an embodiment of the disclosure.
As shown in fig. 7B, according to the embodiment of the present disclosure, the material of the fan blade 110 is a memory material. The fan blade 110 has at least two memory forms: a first tilted state and a first tilted state.
In the first condition, the extending direction of the fan blades 110 has a first inclination angle with respect to the radial direction of the hub. The first angle of inclination may for example be an angle with a value of 180 °, i.e. the fan blades 110 extend in radial direction of the hub.
In the second condition, the extending direction of the fan blades 110 has a second inclination angle with respect to the radial direction of the hub. The second angle of inclination may for example have an angle value of 150 °.
The second inclination angle of the fan blade 110 will affect the wind pressure of the fan blade, so as to change the wind volume provided by the fan.
Fig. 6, 7A and 7B are only illustrated by two blades, and may include any number of blades.
According to the embodiment of the present disclosure, the fan further includes a fan frame disposed at the periphery of the fan blade, wherein: the fan frame is in a circular ring shape, and at least part of area of the fan frame is made of memory material; under a first condition, the fan frame is in a first fan frame shape and is matched with the first fan blade shape; under the second condition, the fan frame is in a second fan frame shape and matched with the second fan blade shape.
Along with the increase or decrease of the area or the length of the fan blades, the fan frame can also be increased or decreased along with the increase or the decrease of the area or the length of the fan blades so as to adjust the air flow of the fan by matching with the fan blades.
Fig. 8 schematically illustrates a schematic view of a fan frame according to an embodiment of the disclosure.
As shown in fig. 8, according to the embodiment of the present disclosure, the transverse section of the fan frame 130 is in a spiral shape, including the overlapping area 131, and the material of the fan frame 130 is a memory material. The deformation temperature of the fan frame 130 is the same as the deformation temperature of the fan blades 110, and the fan frame 130 and the fan blades 110 are simultaneously increased or decreased.
In a first condition, for example in the case of a temperature lower than the deformation temperature thereof, the width of the overlapping area 131 is a first width, which may be, for example, a value greater than 0, and the diameter of the fan frame is a first diameter r 1.
In a second condition, for example in the case of a temperature higher than its deformation temperature, the width of the overlapping area 131 is a second width, the first width may be 0 for example, and the diameter of the fan frame is a second diameter r 2.
The second diameter r2 is larger than the first diameter r1, and the fan frame provides a larger rotation space for the fan blades 110.
Fig. 9 schematically illustrates a schematic view of a fan frame according to another embodiment of the present disclosure.
As shown in fig. 9, according to an embodiment of the present disclosure, the fan frame 130 includes a fan frame corrugated area 132, and at least the material of the fan frame corrugated area 132 is a memory material. Only the wrinkle region 132 or the entire fan frame 130 is made of a memory material.
In the first condition, the fan frame corrugation area is in a corrugation state, and the diameter of the fan frame is the third diameter r 3.
Under the second condition, the fan frame fold area is in an extension state, the fold area extends to expand the whole fan frame, and the diameter of the fan frame is increased to a fourth diameter r 4.
The fourth diameter r4 is larger than the third diameter r3, and the fan frame provides a larger rotation space for the fan blades 110.
The present disclosure also provides an electronic device, including a fan, wherein: the fan comprises fan blades, wherein at least partial areas of the fan blades are made of memory materials; under a first condition, the memory material is in a first state, and the fan blade is in a first fan blade shape; under a second condition, the memory material is in a second state, and the fan blade is in a second fan blade shape; under the condition that the fan blades present the first fan blade form and the second fan blade form, the air volume provided by the fan at the same rotating speed is different.
For example, the structure of the fan can be described with reference to fig. 2 to 9 and the above description related to the corresponding drawings, and will not be described herein again.
Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present disclosure can be made, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.
While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.
Claims (9)
1. A fan, includes flabellum and fan frame, fan frame set up in the flabellum periphery, wherein:
the material of at least partial area of the fan blade is memory material, and the material of at least partial area of the fan frame is memory material;
under a first condition, the memory material is in a first state, the fan blade is in a first fan blade shape, and the fan frame is in a first fan frame shape matched with the first fan blade shape;
under a second condition, the memory material is in a second state, the fan blade is in a second fan blade shape, and the fan frame is in a second fan frame shape matched with the second fan blade shape;
under the condition that the fan blades present the first fan blade form and the second fan blade form, the air volume provided by the fan at the same rotating speed is different.
2. The fan of claim 1, wherein:
the first condition includes: the temperature of the environment where the fan is located is within a first temperature range;
the second condition includes: the temperature of the environment in which the fan is located is within a second temperature range;
wherein the first temperature range comprises a lower temperature value than the second temperature range; under the condition of the same rotating speed, the air volume provided by the fan when the fan blades are in the first fan blade shape is smaller than the air volume provided by the fan when the fan blades are in the second fan blade shape.
3. The fan of claim 1, wherein:
the fan blade comprises a main body area and an edge area, and at least the edge area is made of memory material;
in the first condition, the edge region is in a folded state, and the surface area of the fan blade is a first area;
under the second condition, the edge region is in a spread state, the edge region extends outwards, and the surface area of the fan blade is a second area.
4. The fan of claim 1, further comprising a hub, wherein:
the fan blade comprises a fan blade and an elastic component, and at least the elastic component is made of memory material;
the elastic component is arranged in the fan hub, one end of the elastic component is fixed with the fan hub, the other end of the elastic component is connected with the fan blade, one part of the fan blade is positioned in the fan hub, and the other part of the fan blade extends out of the fan hub to serve as a wind bearing part;
under the first condition, the elastic part is in a contracted state, and the length of the fan blade extending out of the fan hub is a first length;
under the second condition, the elastic component is in an extension state, and the length of the fan blade extending out of the fan hub is a second length.
5. The fan of claim 1, wherein:
the fan blade comprises a flat area and a folded area, at least the folded area is made of memory materials, and the folded area can stretch and retract along a first direction;
under the first condition, the fold area is in a fold state, and the length of the fan blade in the first direction is a third length;
under the second condition, the fold area is in an extended state, and the length of the fan blade in the first direction is a fourth length.
6. The fan of claim 1, wherein:
the fan blades are made of memory materials;
under the first condition, the fan blade is at a first curvature and/or a first inclination angle;
under the second condition, the fan blades are at a second curvature and/or a second inclination angle.
7. The fan of claim 1, wherein:
the transverse section of the fan frame is in a spiral line shape and comprises an overlapping area, and the fan frame is made of a memory material;
under the first condition, the width of the overlapping area is a first width, and the diameter of the fan frame is a first diameter;
under the second condition, the width of the overlapping area is a second width, and the diameter of the fan frame is a second diameter.
8. The fan of claim 1, wherein:
the fan frame comprises a fan frame fold area, and at least the material of the fan frame fold area is a memory material;
under the first condition, the fan frame corrugation area is in a corrugation state, and the diameter of the fan frame is a third diameter;
under the second condition, the fan frame fold area is in an extended state, and the diameter of the fan frame is a fourth diameter.
9. An electronic device comprising a fan, wherein:
the fan comprises fan blades and a fan frame, wherein at least partial areas of the fan blades are made of memory materials, and at least partial areas of the fan frame are made of memory materials; under a first condition, the memory material is in a first state, the fan blade is in a first fan blade shape, and the fan frame is in a first fan frame shape matched with the first fan blade shape; under a second condition, the memory material is in a second state, the fan blade is in a second fan blade shape, and the fan frame is in a second fan frame shape matched with the second fan blade shape; under the condition that the fan blades present the first fan blade form and the second fan blade form, the air volume provided by the fan at the same rotating speed is different.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653728.9A CN109737078B (en) | 2018-12-29 | 2018-12-29 | Fan and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811653728.9A CN109737078B (en) | 2018-12-29 | 2018-12-29 | Fan and electronic equipment |
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| CN109737078B true CN109737078B (en) | 2020-12-18 |
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| CN110147153B (en) * | 2019-06-04 | 2022-05-17 | 安徽理工大学 | Novel notebook computer heat dissipation device |
| CN112328052B (en) * | 2020-10-20 | 2023-05-23 | 深圳市铭瑞达五金制品有限公司 | CPU circulation heat radiation structure |
| CN112682334A (en) * | 2020-12-11 | 2021-04-20 | 浙江工业大学 | Reversible fan based on bistable-state blades and manufacturing method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111004A (en) * | 1983-11-21 | 1985-06-17 | Hitachi Ltd | Casing of axial flow fluid machine |
| US6015263A (en) * | 1998-03-31 | 2000-01-18 | Motorola, Inc. | Fluid moving device and associated method |
| ITTO20010249A1 (en) * | 2001-03-16 | 2002-09-16 | Fiat Ricerche | FAN OR PROPELLER, A MEMORY OF SHAPE. |
| CN1587657A (en) * | 2004-09-17 | 2005-03-02 | 蔡学功 | Automatic air quantity fan for vehicle |
| KR20080027533A (en) * | 2006-09-25 | 2008-03-28 | 현대자동차주식회사 | Variable cooling pan |
| FR2926604B1 (en) * | 2008-01-23 | 2010-03-26 | Snecma | CENTERING A WORKPIECE WITHIN A ROTOR SHAFT IN A TURBOMACHINE |
| EP3153190A1 (en) * | 2015-10-09 | 2017-04-12 | ECP Entwicklungsgesellschaft mbH | Pump, in particular blood pump |
| CN106286391A (en) * | 2016-09-30 | 2017-01-04 | 上海理工大学 | It is arranged on the elastic leaf at fan blade top and there is blade and the blower fan of elastic leaf |
| US10533558B2 (en) * | 2016-12-21 | 2020-01-14 | Saudi Arabian Oil Company | Centrifugal pump with adaptive pump stages |
| US20180258947A1 (en) * | 2017-03-10 | 2018-09-13 | Nidec Corporation | Axial fan |
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