Heat dissipation device and electronic equipment

Abstract

The invention discloses a heat dissipation device and electronic equipment. The heat dissipation device comprises a plurality of fan blades; the fixing component is provided with a first surface and a second surface, the first surface is adjacent to the second surface, and the first surface faces the fan blades; the first end of the target component is connected with the fan blades, the second end of the target component is connected with the second face, the first end extends towards the second end in the first direction to form the target component, and at least one part in the first direction and the target direction are arranged at a target angle; the target direction is a direction perpendicular to the first surface, and the target angle is not 0 degree.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a heat dissipation device and electronic equipment. Background Art

[0002] The heat dissipation device in the electronic device is generally a fan, which drives the airflow through the movement of the fan blades to dissipate the heat of the heat generating components of the electronic device.

[0003] The fan blades currently used in fans are relatively thin, which makes it easy for the fan blades to deform slightly when rotating, resulting in a decrease in the heat dissipation performance of the fan. Summary of the invention

[0004] In view of this, the present application provides a heat dissipation device.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A heat dissipation device, comprising:

[0007] Multiple fan blades;

[0008] A fixing component, the fixing component having a first surface and a second surface, the first surface is adjacent to the second surface, and the first surface faces the fan blade;

[0009] A target component, wherein a first end of the target component is connected to the fan blade, a second end of the target component is connected to the second surface, the first end extends toward the second end along a first direction to form the target component, at least a portion of the first direction is set at a target angle with the target direction, the target direction is a direction perpendicular to the first surface, and the target angle is not 0°.

[0010] Optionally, in the above heat dissipation device, at least a portion of the first direction is a curve.

[0011] The bending direction of the curve is convex away from the fan blade; or, the bending direction of the curve is convex toward the fan blade.

[0012] Optionally, in the above heat dissipation device, the first end is connected to an edge of the fan blade facing the fixed component;

[0013] Among two adjacent blades, there is a distance between the second end of the target component connected to one blade and the other blade.

[0014] Optionally, in the above heat dissipation device, the fan blade has a first part and a second part arranged in a direction away from the center of the heat dissipation device, and the target component is connected to the second part.

[0015] Optionally, in the above heat dissipation device, the thickness of the first part is smaller than the thickness of the second part, and the thickness direction is the axial direction of the heat dissipation device;

[0016] And / or, the second portion is concave facing away from the windward surface of the fan blade, and the first portion is convex toward the windward surface of the fan blade;

[0017] and / or, the first surface is connected to the second parts of the plurality of blades;

[0018] And / or, the target component connects the windward side of the fan blade and the fixed component; or, the target component connects the leeward side of the fan blade and the fixed component.

[0019] Optionally, in the above heat dissipation device, the fixing component is connected to a first position of the second part, and the target component is connected to a second position of the second part;

[0020] The first position and the second position are different positions of the second portion and are arranged in a direction close to and away from the center of the heat dissipation device.

[0021] Optionally, in the above heat dissipation device, the target component has a guide surface, the guide surface faces the airflow gap between two adjacent fan blades, and the guide surface is not perpendicular to the axis of the heat dissipation device;

[0022] in,

[0023] During the rotation of the fan blade, the guide surface rotates along the axis of the rotor component, driving the fluid in the air flow gap to flow along the axis direction of the heat sink, so that the fluid flows in a direction away from the target component.

[0024] Optionally, in the above heat dissipation device, the fan blade has a first edge and a second edge, and the arrangement direction of the first edge and the second edge is the axial direction of the heat dissipation device;

[0025] The fixing component is connected to the first edge of the fan blade, the fixing component is connected to the second edge of the fan blade, or the fixing component is connected to a middle position of the fan blade, and the middle position is located between the first edge and the second edge.

[0026] Optionally, in the above heat dissipation device, the second surface is a surface of the fixing component facing the center of the heat dissipation device, and the target component connects a portion of the fan blade located between the fixing component and the center of the heat dissipation device and the second surface; or,

[0027] The second surface is a surface of the fixing component facing away from the center of the heat sink, and the target component connects the portion of the fan blade located on the fixing component away from the center of the heat sink and the second surface; or,

[0028] The second surface includes a first sub-surface of the fixing component facing the center of the heat sink and a second sub-surface of the fixing component facing away from the center of the heat sink, the target component includes a first reinforcement and a second reinforcement, the first reinforcement and a portion connecting the fan blade between the fixing component and the center of the heat sink and the first sub-surface, the second reinforcement and a portion connecting the fan blade away from the center of the heat sink and the second sub-surface.

[0029] Optionally, in the above heat dissipation device, the first surface is connected to the fan blade, a rounded structure is provided at a connection position between the first surface and the fan blade, and the target component is connected to the rounded structure.

[0030] Optionally, in the above heat dissipation device, the heat dissipation device has a first side and a second side arranged along the axial direction of the heat dissipation device and opposite to each other, the arrangement direction of the target position and the heat dissipation device is perpendicular to the axial direction of the heat dissipation device, and the target position has a third side corresponding to the first side and a fourth side corresponding to the second side;

[0031] in,

[0032] The target component is connected to the position of the fan blade close to the first side, and during the rotation of the fan blade, the airflow can be driven to flow toward the direction area of ​​the fourth side of the target position; or,

[0033] The target component is connected to a position of the fan blade close to the second side, and during the rotation of the fan blade, it can drive the airflow to flow toward a third side of the target position.

[0034] Optionally, in the above heat dissipation device, the heat dissipation device further comprises a rotor component, and the rotor component is capable of rotating along its axis;

[0035] The plurality of fan blades are arranged along the circumference of the rotor component; or, the plurality of fan blades include a first fan blade and a second fan blade, the first fan blade connects the rotor component and the fixed component, and the second fan blade connects the fixed component.

[0036] The present application also provides an electronic device, comprising a heat generating component and a heat dissipation device for dissipating heat from the heat generating component;

[0037] The heat dissipation device comprises:

[0038] Multiple fan blades;

[0039] A fixing component, the fixing component having a first surface and a second surface, the first surface is adjacent to the second surface, and the first surface faces the fan blade;

[0040] A target component, wherein the first end of the target component is connected to the fan blade, the second end of the target component is connected to the second surface, the first end extends toward the second end along a first direction to form the target component, at least a portion of the first direction is set at a target angle with the target direction, the target direction is the arrangement direction of the first surface and the fan blade, and the target angle is not 0°.

[0041] Optionally, in the above electronic device, the heat sink has a first side and a second side arranged along the axial direction of the heat sink and opposite to each other, the arrangement direction of the target position and the heat sink is perpendicular to the axial direction of the heat sink, and the target position has a third side corresponding to the first side and a fourth side corresponding to the second side;

[0042] in,

[0043] The target component is connected to the position of the fan blade close to the first side, and during the rotation of the fan blade, the airflow can be driven to flow toward the fourth side of the target position, and the heat generating component is located on the fourth side of the target position; or,

[0044] The target component is connected to the position of the fan blade close to the second side. During the rotation of the fan blade, the airflow can be driven to flow toward the third side of the target position. The heat-generating component is located on the third side of the target position. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A schematic diagram of the front view structure of a first heat dissipation device provided in an embodiment of the present application;

[0047] Figure 2 A schematic diagram of the side structure of a first heat dissipation device provided in an embodiment of the present application;

[0048] Figure 3 for Figure 2 A partial enlarged schematic diagram of the "S" part;

[0049] Figure 4 A schematic diagram of the structure of the first direction provided by an embodiment of the present application;

[0050] Figure 5 The first direction provided in the embodiment of the present application is a distribution diagram of air flow velocity in the g direction;

[0051] Figure 6 The airflow velocity distribution diagram in the first direction provided in the embodiment of the present application is the direction e;

[0052] Figure 7 A first three-dimensional structural schematic diagram of a first heat dissipation device provided in an embodiment of the present application;

[0053] Figure 8 A second three-dimensional structural schematic diagram of the first heat dissipation device provided in an embodiment of the present application;

[0054] Fig. 9 for Figure 8 A partial enlarged schematic diagram of part "A" in FIG.

[0055] Fig.10 A schematic diagram of a first position of a heat dissipation device and a heat generating component provided in an embodiment of the present application;

[0056] Fig.11 An air flow velocity distribution diagram of the heat dissipation device and the heat generating component at the first position provided in an embodiment of the present application;

[0057] Fig.12 A schematic diagram of a second position of a heat dissipation device and a heat generating component provided in an embodiment of the present application;

[0058] Fig.13 An air flow velocity distribution diagram of the heat dissipation device and the heat generating component at the second position provided in an embodiment of the present application;

[0059] Fig.14 A schematic diagram of the front view structure of a second heat dissipation device provided in an embodiment of the present application;

[0060] Fig.15 A schematic diagram of the three-dimensional structure of a second heat dissipation device provided in an embodiment of the present application;

[0061] Fig.16 A schematic diagram of the front view structure of a third heat dissipation device provided in an embodiment of the present application;

[0062] Fig.17 A schematic diagram of the three-dimensional structure of a third heat dissipation device provided in an embodiment of the present application;

[0063] Fig.18 A schematic diagram of the front view structure of a fourth heat dissipation device provided in an embodiment of the present application;

[0064] Fig.19 A schematic diagram of the three-dimensional structure of a fourth heat dissipation device provided in an embodiment of the present application;

[0065] Fig. 20 A schematic diagram of the front view structure of a fifth heat dissipation device provided in an embodiment of the present application;

[0066] Fig.21 A schematic diagram of the three-dimensional structure of a fifth heat dissipation device provided in an embodiment of the present application;

[0067] Fig. 22 This is a schematic diagram of the front structural view of the sixth heat dissipation device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0068] The present application discloses a heat dissipation device and an electronic device.

[0069] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0070] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. "Include" or "comprising" and other similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of covering other elements.

[0071] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0072] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0073] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0074] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0075] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which this application belongs. Figure 1-Figure 7 As shown, an embodiment of the present application provides a heat dissipation device, including a plurality of fan blades 200 , a fixing component 300 and a target component 400 .

[0076] The fixing member 300 may have a first surface 301 and a second surface 302, the first surface 301 may be adjacent to the second surface 302, and the first surface 301 may face the blade 200. The fixing member 300 may be directly or indirectly connected to the rotor member 100 or a plurality of blades 200, thereby enhancing the anti-bending ability of the blade 200.

[0077] The first end 401 of the target component 400 can be connected to the fan blade 200, and the second end 402 of the target component 400 can be connected to the second surface 302. Since the first surface 301 is adjacent to the second surface 302, the first surface 301 and the second surface 302 can be arranged at an angle. That is, the target component 400 can connect the fan blade 200 and the second surface 302 of the fixing component 300 and the first surface 301.

[0078] The first end 401 can extend toward the second end 402 along the first direction to form a target component 400 , and at least a portion of the first direction is arranged at a target angle with the target direction X, the target direction X is an arrangement direction perpendicular to the first surface 301 , and the target angle is not 0°.

[0079] It should be noted that the target component 400 includes an end (second end 402) connected to the second surface 302 and an end (first end 401) connected to the fan blade 200. Starting from these two end points (first end 401 and second end 402), the structure formed by extension is the target component 400. Among them, the minimum distance between the first end 401 and the second end 402 is a straight line, but this does not mean that the target component 400 is a straight line structure. Any path can be extended from the first end 401 to the second end 402. Among them, the extension is not a straight extension direction, but an extension along the first direction. That is, the above extension does not only include the first end 401 extending directly to the second end 402, but refers to the structure extending from the first end 401 (one end connected to the fan blade 200) to the second end 402 (one end connected to the second surface 302) along the first direction, which is the target component 400. In addition, at least a portion of the first direction includes all of the first direction and part of the first direction. The portion in the first direction may be a structure close to the first end 401 in the first direction, may be a structure close to the second end 402 , may be a structure in the middle area of ​​the first direction, etc.

[0080] The first direction may be a linear direction, that is, the extension direction from the first end 401 of the target component 400 to the second end 402 is a linear direction. Figure 4 The direction a shown is a first direction, that is, the first direction is a straight line direction set at a target angle with the target direction X.

[0081] The first direction may also be a non-linear direction, such as a composite direction composed of any arcs and / or straight lines. Figure 4 The directions b, c, d, e and f shown in the figure can all be used as the first direction. Among them, at least a part of the first direction can be set at a target angle with the target direction X, and the part set at the target angle with the target direction X can be a straight line structure or an arc structure. For example, the b direction includes a straight line part and an arc line part, the number of the straight line parts is two and they are parallel to the target direction X, and the arc line part connects the two straight line parts, so the arc line part can be set at a target angle with the target direction X. Of course, the first direction can also be set to other directions, which will not be repeated here one by one and are all within the scope of protection.

[0082] The target component 400 can be integrally formed with the fan blade 200 and the fixing component 300 to achieve the effect that the target component 400 connects the fan blade 200 and the fixing component 300. In the integrally formed structure, the end of the target component 400 that leaves the second surface 302 of the target component 400 is the first end 401. That is, the first end 401 protrudes from the second surface 302.

[0083] Alternatively, the target component 400 may be integrally formed with the fan blade 200 , and the connection between the target component 400 and the fixing component 300 may be achieved by assembly (eg, gluing, welding, or concave-convex fitting).

[0084] It is also possible to form the target component 400 integrally with the fixing component 300 only, and achieve connection between the target component 400 and the fan blade 200 by assembly (such as gluing, welding, or concave-convex fitting).

[0085] The target component 400, the fan blade 200 and the fixing component 300 may also be processed separately, and the connection between the target component 400, the fan blade 200 and the fixing component 300 is achieved by assembly (such as gluing, welding or concave-convex fitting).

[0086] The heat dissipation device provided by the embodiment of the present application, because the first end 401 of the target component 400 can be connected to the fan blade 200, and the second end 402 of the target component 400 can be connected to the second surface 302, the fan blade 200 is indirectly connected to the fixed component 300 through the target component 400. That is, at least one fan blade 200 is connected to the fixed component 300 through the target component 400, and the part where the fan blade 200 is connected to the target component 400 is indirectly connected to the same fixed component 300, thereby improving the positional stability of the part where the fan blade 200 is connected to the target component 400 relative to the fixed component 300. In the process of the rotor component 100 driving the fan blade 200 to rotate, the part where the fan blade 200 is connected to the target component 400 can obtain the support of the fixed component 300 through the target component 400, reducing the displacement of the part where the fan blade 200 is connected to the target component 400 on the overall structure of the heat dissipation device, thereby effectively strengthening the anti-deformation strength of the fan blade 200, reducing the deformation amount of the fan blade 200 due to the influence of airflow, thereby ensuring the performance of the heat dissipation device.

[0087] Since the first surface 301 can be adjacent to the second surface 302, the first surface 301 and the second surface 302 can be set at an angle, and the first surface 301 faces the fan blade 200. Therefore, the second surface 302 and the side of the fan blade 200 facing the fixed component 300 (the side opposite to the first surface 301) are set at an angle. The target direction X is the arrangement direction of the first surface 301 and the fan blade 200, that is, the target direction X is the thickness of the fixed component 300. Since the first end 401 can extend along the first direction toward the second end 402 to form the target component 400, and at least a portion of the first direction is set at a target angle with the target direction X, on the basis of a certain thickness dimension of the fixed component 300, the size of the target component 400 along the first direction can be increased, thereby increasing the connection area between the target component 400 and the fixed component 300, and further improving the connection stability between the target component 400 and the fixed component 300. Therefore, the supporting effect obtained at the portion where the fan blade 200 is connected to the target component 400 can be further improved, thereby further enhancing the anti-deformation strength of the fan blade 200.

[0088] At least a portion of the first direction is a curve.

[0089] In some embodiments, the first direction is entirely curved. Figure 4 As shown, the c direction and the e direction are all curves. The c direction is formed by connecting two curves with opposite bending directions to form an "S"-shaped direction, wherein at least a portion of the two curves is set at a target angle with the target direction X. The e direction is composed of a single curve, and the curve is set at a target angle with the target direction X.

[0090] In other embodiments, a portion of the first direction is a curve, and another portion is a non-curve (such as a straight line or a wavy line). Figure 4 As shown, the b direction and the d direction are structures formed by a part of a curve and another part of a straight line. The b direction includes a first straight line, a first curve and a second straight line connected in sequence, the first straight line and the second straight line are relatively parallel and arranged along the target direction X, and the first curve is arranged at a target angle to the target direction X. The d direction includes a third straight line, a second curve and a fourth straight line connected in sequence, the third straight line and the fourth straight line are relatively perpendicular and the third straight line is arranged along the target direction X, and the second curve is arranged at a target angle to the target direction X.

[0091] In the above embodiment, since the curve is set at a target angle with the target direction X, the connection area between the target component 400 and the second surface 302 is increased, thereby improving the stability of the overall structure formed by the fan blade 200, the target component 400 and the fixing component 300, and further enhancing the deformation resistance of the fan blade 200.

[0092] Furthermore, compared with the setting of the straight line and the target direction X at a target angle, the target component 400 and the fan blade 200 are effectively avoided from being set at an angle, thereby avoiding the noise generated by factors such as vortex at the angle position, thereby further achieving a noise reduction effect.

[0093] Taking direction a as the first direction for explanation, the first end 401 can extend toward the second end 402 along direction e to form a target component 400, so that the target component 400 is a straight plate, and the first end 401 of the target component 400 is connected to the fan blade 200, so that the connection structure between the target component 400 and the fan blade 200 is an angle structure, and the angle position is prone to generate vortices, thereby generating noise, and there is a problem of stress concentration.

[0094] In some embodiments, the target angle can be 90°, and the g direction is used as the first direction for illustration. The g direction is perpendicular to the target direction X. The first end 401 can extend toward the second end 402 along the e direction to form a target component 400, so that the target component 400 is a straight plate. The first end 401 of the target component 400 is connected to the fan blade 200, so that the connection structure between the target component 400 and the fan blade 200 is an angle structure. The angle position is prone to produce vortices, thereby generating noise and causing stress concentration problems. In addition, since the g direction is perpendicular to the target component 400, the target component 400 can only strengthen the deformation resistance of the fan blade 200, and will not affect the airflow or will have little effect on the airflow, so that the air output will not increase. Figure 5 As shown, from the airflow velocity distribution diagram, in the embodiment where the target component 400 is a straight plate and perpendicular to the target direction X (the axis of the rotor component 100 ), there are more blue areas with slower airflow velocities.

[0095] In some applications, the target angle may not be 90°. Figure 4 The a direction shown is the first direction.

[0096] Taking the e direction as the first direction for explanation, the first end 401 can extend toward the second end 402 along the e direction to form the target component 400, so that the target component 400 is an arc-shaped plate, and the first end 401 of the target component 400 is connected to the fan blade 200, so that the connection structure between the target component 400 and the fan blade 200 is an arc-shaped structure, avoiding the formation of an angle and the generation of a vortex, thereby effectively reducing noise. In addition, stress concentration is avoided at the connection structure between the target component 400 and the fan blade 200, thereby improving the service life. In addition, since the target component 400 is an arc-shaped plate, the target component 400 has an arc surface on the same side as the windward surface of the fan blade 200, and the arc surface can serve as an auxiliary windward surface to drive the airflow, thereby increasing the air output. Figure 6As shown in the air flow velocity distribution diagram, in the embodiment where the target component 400 is a curved plate, there are fewer blue areas with slower air flow velocity. This makes the overall flow rate of the heat dissipation device greater than Figure 5 The target component 400 is shown as a straight plate and the overall flow rate of the heat sink in the embodiment is perpendicular to the target direction X.

[0097] The first direction can also be a wavy line formed by connecting a plurality of straight lines, such as Figure 4 As shown, the f direction includes a fifth straight line, a sixth straight line and a seventh straight line connected in sequence, wherein the fifth straight line and the seventh straight line are relatively parallel and arranged along the target direction X, and the sixth straight line is arranged at a target angle to the target direction X.

[0098] In some embodiments, the bending direction of the curve is convex away from the fan blade 200. Figure 3 As shown, the bending direction of the curve is convex away from the fan blades 200, so that the target component 400 has a concave arc surface facing the airflow gap between two adjacent fan blades 200. In the process of the rotor component 100 driving the fan blades 200 to rotate, the concave arc surface rotates along the axis of the rotor component 100, and the airflow flowing toward the target component 400 can converge on the concave arc surface, which is convenient for guiding the flow direction of the airflow.

[0099] In other embodiments, the curvature of the curve is convex toward the blades 200, so that the target component 400 has a convex arc surface facing away from the airflow gap between two adjacent blades 200. When the rotor component 100 drives the blades 200 to rotate, the convex arc surface can avoid direct collision with the airflow flowing toward it, thereby reducing the kinetic energy loss of the airflow during the flow process.

[0100] In some embodiments, the first end 401 of the target component 400 can be connected to the edge of the blade 200 facing the fixed component 300. The edge of the blade 200 facing the fixed component 300 can be the upper edge of the blade 200 or the lower edge of the blade 200. In two adjacent blades 200, the second end 402 of the target component 400 connected to one blade 200 can have a spacing with the other blade 200. Through the above arrangement, there is a gap between the parts of the two adjacent blades 200 connecting the target component 400, that is, the fluid in the airflow gap formed between the two adjacent blades 200 can pass between the parts of the two adjacent blades 200 connecting the target component 400. In this way, the amount of material used in the heat sink can be saved, the overall weight is avoided to be too large due to the excessive amount of material used in the heat sink, and the performance of the heat sink can be ensured.

[0101] The parts of two adjacent blades 200 that are connected to the target component 400 may also be connected through the target component 400 to enhance the anti-deformation ability of the blades 200.

[0102] In some embodiments, the fan blade 200 may have a first portion 210 and a second portion 220 arranged in a direction away from the rotor component 100, and the target component 400 may be connected to the second portion 220. Since the first portion 210 of the fan blade 200 is close to the rotor component 100. In the process of the rotor component 100 driving the fan blade 200 to rotate, when the fan blade 200 is connected to the rotor component 100, the deformation of the first portion 210 is less than the deformation of the second portion 220, and the target component 400 is connected to the second portion 220 to support the position of the fan blade 200 with a larger deformation, thereby further reducing the deformation of the fan blade 200.

[0103] like Figure 6 It is shown that the thickness of the first part 210 is less than the thickness of the second part 220, and the thickness direction is the axial direction of the rotor component 100. Through the above arrangement, the windward area of ​​the second part 220 is greater than the windward area of ​​the first part 210 under the unit size in the radial direction of the heat dissipation device. Under the premise of not setting the target component 400, the deformation amount of the second part 220 is further greater than the deformation amount of the first part 210. Therefore, by connecting the target component 400 with the second part 220, the anti-deformation strength of the fan blade 200 is ensured on the basis of satisfying the performance of the heat dissipation device.

[0104] In some embodiments, the second portion 220 may be recessed away from the windward surface of the fan blade 200, and the first portion 210 may be convex toward the windward surface of the fan blade 200. Through the above arrangement, the fan blade 200 forms an "S" structure in a direction away from the center of the heat sink, thereby ensuring the performance of the heat sink, for example, reducing air flow vibration and thus reducing noise, increasing the surface area of ​​the fan blade 200 per unit size in the radial direction of the heat sink, and improving the heat dissipation effect.

[0105] In some embodiments, the first surface 301 is connected to the second portion 220 of the plurality of blades 200. The deformation of the first portion 210 is less than that of the second portion 220. Therefore, the first surface 301 and the second portion 220 of the plurality of blades 200 support and strengthen the position where the fixing component 300 and the blades 200 have a larger deformation, so as to further enhance the anti-deformation effect of the blades 200.

[0106] The fixing component 300 can be connected to the first position of the second part 220, and the target component 400 can be connected to the second position of the second part 220; the first position and the second position can be different positions of the second part 220 and are arranged in the direction close to and away from the rotor component 100. That is, the fixing component 300 and the target component 400 (indirectly connected to the fixing component 300) are connected to different positions of the second part 220 of the fan blade 200, and the first position where the fixing component 300 is connected to the second part 220 and the second position where the target component 400 is connected to the second part 220 are arranged in the direction close to and away from the rotor component 100, so that the second part 220 is respectively connected to the fixing component 300 and the target component 400 at different positions along the radial direction of the heat dissipation device, further improving the anti-deformation strength of the second part 220 of the fan blade 200.

[0107] Specifically, the fixing component 300 is an annular component, and the center line coincides with the axis of the rotor component 100. When the plurality of blades 200 are connected to the fixing component 300, the combined structure of the rotor component 100, the blades 200 and the fixing component 300 of the heat dissipation device forms a central symmetrical structure, which is beneficial to the stability of the heat dissipation device during rotation.

[0108] like Figure 1 , Fig.14 and Fig.16 As shown, in some embodiments, the target component 400 connects the windward surface of the blade 200 and the fixing component 300. Therefore, the fixing component 300 has a surface facing the same direction as the windward surface of the blade 200, which can be used as an auxiliary windward surface to contact the airflow, thereby further improving the flow rate.

[0109] like Fig.18 and Fig.19 As shown, in other embodiments, the target component 400 connects the leeward side of the blade 200 and the fixing component 300. That is, the target component 400 serves as a supporting structure supported between the leeward side of the blade 200 and the fixing component 300, which can improve the supporting effect of the target component 400 on the blade 200.

[0110] The heat sink in the embodiment of the present application can be used as a centrifugal impeller, that is, when the heat sink rotates along its axis, the airflow enters along the center of the heat sink and flows out along the periphery of the heat sink, and the outflow direction is perpendicular to the axis of the heat sink. Therefore, the device (such as the heat-generating component 600) cooled by the heat sink needs to be located at the periphery of the heat sink and be arranged perpendicular to the axis of the heat sink. Therefore, the relative position of the heat sink and the device cooled by the heat sink is limited.

[0111] In order to solve the above problem, the target component 400 has a guide surface, which faces the airflow gap between two adjacent blades 200, and the guide surface is not perpendicular to the axis of the rotor component 100; wherein, in the process of the rotor component 100 driving the blades 200 to rotate, the guide surface rotates along the axis of the rotor component 100, driving the fluid in the airflow gap to flow along the axis direction of the rotor component 100, so that the fluid flows in a direction away from the target component 400. That is, the guide surface of the target component 400 can guide the flow direction of the airflow, and prevent the airflow from flowing out of the heat dissipation device in a direction perpendicular to the axis of the rotor component 100.

[0112] Among them, because the guide surface of the target component 400 is not perpendicular to the axis of the rotor component 100 and faces the airflow gap between two adjacent blades 200, the guide surface acts as a windward surface similar to an axial flow fan. In the process of the rotor component 100 driving the blades 200 to rotate, the guide surface can drive the airflow in the airflow gap to flow along the axial direction of the heat dissipation device (the axial direction of the rotor component 100). Combined with the centrifugal effect of the blades 200, the airflow flows in a direction away from the rotor component 100 at a certain inclination angle to the axial direction of the rotor component 100. Figure 3 As shown, the guide surface of the target component 400 in the embodiment of the present application can be a concave arc surface of the target component 400. Of course, it can also be set to other structures, which are not specifically limited here.

[0113] The blade 200 has a first edge and a second edge, and the arrangement direction of the first edge and the second edge is the axial direction of the rotor component 100. The fixing component 300 is connected to the first edge of the blade 200, the fixing component 300 is connected to the second edge of the blade 200, or the fixing component 300 is connected to the middle position of the blade 200, and the middle position is located between the first edge and the second edge.

[0114] The first edge is the upper edge of the blade 200, and the second edge is the lower edge of the blade 200. Therefore, for the centrifugal impeller, the upper edge and the lower edge are arranged along the axial direction. Therefore, the fixing component 300 is connected to the first edge of the blade 200, that is, the fixing component 300 is connected to the upper edge of the blade 200. In order to prevent the fixing component 300 from increasing the overall thickness of the heat dissipation device, the third surface of the fixing component 300 opposite to the first surface can be aligned or coplanar with the upper edge of the blade 200.

[0115] The fixing component 300 is connected to the second edge of the blade 200, that is, the fixing component 300 is connected to the lower edge of the blade 200. The fixing component 300 can also be connected to the middle position of the blade 200, that is, in two adjacent blades 200, the fixing component 300 connects the windward side of one blade 200 and the leeward side of the other blade 200.

[0116] like Fig.14 and Fig.15 As shown, in some embodiments, the second surface 302 is a side of the fixing component 300 facing the rotor component 100, and the target component 400 connects the portion of the fan blade 200 located between the fixing component 300 and the rotor component 100 and the second surface 302. That is, the target component 400 is located on the side of the fixing component 300 facing the center of the heat sink.

[0117] exist Fig.14 and Fig.15 In the embodiment, the target component 400 connects the windward side of the blade 200 and the fixing component 300. Alternatively, the target component 400 can connect the leeward side of the blade 200 and the fixing component 300.

[0118] like Fig.16 , Fig.17 , Fig. 20 and Fig.21 As shown, in other embodiments, the second surface 302 is a side of the fixing component 300 facing away from the rotor component 100 , and the target component 400 connects the blade 200 and the second surface 302 at a portion of the fixing component 300 away from the rotor component 100 .

[0119] exist Fig.16 and Fig.17 In the embodiment, the target component 400 connects the windward surface of the fan blade 200 and the fixing component 300. Fig. 20 and Fig.21 In the embodiment, the target component 400 connects the leeward side of the blade 200 and the fixing component 300 .

[0120] like Figure 1 , Figure 7 , Fig.18 and Fig.19 As shown, in other embodiments, the second surface 302 includes a first sub-surface of the fixing component 300 facing the rotor component 100 and a second sub-surface of the fixing component 300 facing away from the rotor component 100, and the target component 400 includes a first reinforcement 410 and a second reinforcement 420, the first reinforcement 410 and the connecting blade 200 are located at a portion between the fixing component 300 and the rotor component 100 and the first sub-surface, and the second reinforcement 420 and the connecting blade 200 are located at a portion of the fixing component 300 away from the rotor component 100 and the second sub-surface.

[0121] exist Figure 1 and Figure 7 In the embodiment, the target component 400 connects the windward surface of the fan blade 200 and the fixing component 300. Fig.18 and Fig.19 In the embodiment, the target component 400 connects the leeward side of the blade 200 and the fixing component 300 .

[0122] The first projection area of ​​the target component 400 along the second direction can be located within the second projection area of ​​the fixed component 300 along the second direction, and the second direction is perpendicular to the axial direction of the rotor component 100. That is, the second direction is the radial direction of the heat dissipation device. The dimension of the target component 400 along the axial direction does not exceed the dimension of the fixed component 300 along the axial direction, thereby facilitating the demolding operation of the target component 400 and the fixed component 300 as an integrally formed structure. In addition, the portion of the target component 400 located on the side of the fixed component 300 facing away from the fan blade 200 cannot play a role in strengthening the anti-deformation performance of the fan blade 200. Therefore, making the dimension of the target component 400 along the axial direction not exceed the dimension of the fixed component 300 along the axial direction also avoids material waste.

[0123] like Figure 7 As shown, in order to further avoid stress concentration, the first surface 301 is connected to the fan blade 200 , a rounded structure 310 is provided at the connection position between the first surface 301 and the fan blade 200 , and the target component 400 is connected to the rounded structure 310 .

[0124] In the embodiment where the target component 400 is a curved plate, the diameter of the rounded structure 310 is smaller than the minimum diameter of the connection surface of the target component 400 for connecting with the rounded structure 310 .

[0125] like Figure 1 , Figure 5 and Figure 6 As shown, the fixing component 300 extends a certain length along the direction of the fan blade 200. Among them, the fixing component 300 can be connected only to the second part 220 of the fixing component 300. It is also possible to make the fixing component 300 connected only to the first part 210 of the fixing component 300. It is also possible to make the fixing component 300 connected between the first part 210 and the second part 220 of the fixing component 300 or to connect the first part 210 and the second part 220 of the fixing component 300. In addition, the fixing component 300 can also be arranged along the fan blade 200 toward the center of the heat dissipation device, so that the fixing component 300 is connected to the rotor component 100.

[0126] like Fig.10 As shown, the heat dissipation device has a first side 001 and a second side 002 arranged along the axial direction of the rotor component 100 and opposite to each other, the target position 500 and the arrangement direction of the heat dissipation device are perpendicular to the axial direction of the rotor component 100, and the target position 500 has a third side 003 corresponding to the first side 001 and a fourth side 004 corresponding to the second side 002.

[0127] The target component 400 can be connected to the position of the fan blade 200 close to the first side 001, and during the rotation of the fan blade 200, it can drive the airflow to flow toward the fourth side 004 of the target position 500. Fig.11As shown, from the air flow velocity distribution diagram, the target component 400 can be connected to the position of the fan blade 200 close to the first side 001 (such as the upper edge of the fan blade 200), and the red area with faster air flow velocity is close to the second side 002 of the heat sink, and because the second side 002 corresponds to the fourth side 004, the heat sink can be more conducive to dissipating heat for the heat-generating component 600 located on the fourth side 004 of the target position 500.

[0128] like Fig.12 As shown, the target component 400 can also be connected to the position of the fan blade 200 close to the second side 002, and the fan blade 200 can drive the airflow to flow toward the third side 003 of the target position 500 during rotation. Fig.13 As shown, from the air flow velocity distribution diagram, the target component 400 can be connected to the position of the fan blade 200 close to the second side 002 (such as the lower edge of the fan blade 200), and the red area with faster air flow velocity is close to the first side 001 of the heat sink, and because the second side 001 corresponds to the third side 003, the heat sink can be more conducive to dissipating the heat of the heat-generating component 600 located on the third side 003 of the target position 500.

[0129] Through the above arrangement, the heat dissipation requirement of the device (such as the heat generating component 600) to be cooled by the heat dissipation device can be met by adjusting the setting position of the target component 400, and the heat dissipation effect can be achieved by not only setting the device (such as the heat generating component 600) to be cooled by the heat dissipation device at the third side 003 or the fourth side 004 of the target position 500. Therefore, the relative position restriction between the heat dissipation device and the device to be cooled by the heat dissipation device is reduced, and the heat dissipation device and the device to be cooled by the heat dissipation device can be set more flexibly.

[0130] like Figure 1-Figure 21 As shown, in some embodiments, the heat dissipation device further includes a rotor component 100, which can rotate along its axis; and a plurality of blades 200 are arranged along the circumference of the rotor component 100. That is, the rotor component 100 is directly connected to the plurality of blades 200, thereby driving the plurality of blades 200 to rotate along the axis of the rotor component 100.

[0131] like Fig. 22 As shown, in some embodiments, the heat dissipation device may further include a rotor component 100, wherein the rotor component 100 can rotate along its axis; and a plurality of blades 200 can be arranged along the circumference of the rotor component 100. That is, during the process of the rotor component 100 rotating along its axis, the blades 200 can be driven to rotate along its axis, so that the blades 200 can drive the airflow to flow in a direction away from the rotor component 100, that is, the airflow is centrifuged.

[0132] In some embodiments, the plurality of blades 200 may include a first blade 201 and a second blade 202, wherein the first blade 201 may connect the rotor component 100 and the fixing component 300, and the second blade 202 may connect the fixing component 300. The first blade 201 and the second blade 202 may be different blades, and the second blade 202 may not be directly connected to the rotor component 100.

[0133] In some embodiments, the first fan blade 201 can be connected to the first position of the fixing component 300, the second fan blade 202 can be connected to the second position of the fixing component 300, the first position and the second position can be located on different sides of the fixing component 300, and the first position and the second position can be staggered.

[0134] The embodiment of the present application further provides an electronic device, including a heat-generating component 600 and a heat-dissipating device for dissipating heat from the heat-generating component 600 .

[0135] The heat dissipation device includes a plurality of blades 200, a fixing component 300 and a target component 400, wherein the plurality of blades 200 are arranged along the circumference of the rotor component 100; the fixing component 300 has a first surface 301 and a second surface 302, wherein the first surface 301 is adjacent to the second surface 302, and the first surface 301 faces the blades 200; the first end 401 of the target component 400 is connected to the blades 200, the second end 402 of the target component 400 is connected to the second surface 302, the first end 401 extends toward the second end 402 along a first direction to form the target component 400, and at least a portion of the first direction is arranged at a target angle with the target direction, the target direction is the arrangement direction of the first surface 301 and the blades 200, and the target angle is not 0°.

[0136] In the electronic device provided by the embodiment of the present application, during the process of the heat dissipation device rotating and dissipating heat to the heat generating component 600, the portion where the fan blade 200 is connected to the target component 400 can obtain support from the fixed component 300 through the target component 400, and on the basis of a certain thickness dimension of the fixed component 300, at least a portion in the first direction is arranged at a target angle with the target direction X, which can increase the size of the target component 400 along the first direction, thereby increasing the connection area between the target component 400 and the fixed component 300, and further improving the connection stability between the target component 400 and the fixed component 300. Thus, the displacement of the portion where the fan blade 200 is connected to the target component 400 on the overall structure of the heat dissipation device is reduced, thereby effectively strengthening the anti-deformation strength of the fan blade 200, and reducing the deformation of the fan blade 200 due to the influence of airflow, thereby ensuring the performance of the heat dissipation device, ensuring the effect of the heat dissipation device on the heat generating component 600, and thus ensuring the stable operation of the electronic device.

[0137] like Fig.10As shown, the heat dissipation device has a first side 001 and a second side 002 arranged along the axial direction of the rotor component 100 and opposite to each other, the target position 500 and the arrangement direction of the heat dissipation device are perpendicular to the axial direction of the rotor component 100, and the target position 500 has a third side 003 corresponding to the first side 001 and a fourth side 004 corresponding to the second side 002.

[0138] In some embodiments, the target component 400 can be connected to the position of the fan blade 200 near the first side 001. During the rotation of the fan blade 200, the airflow can be driven to flow toward the fourth side 004 of the target position 500. The heat generating component 600 is located at the fourth side 004 of the target position 500. Fig.11 As shown, from the air flow velocity distribution diagram, the target component 400 can be connected to the position of the fan blade 200 close to the first side 001 (such as the upper edge of the fan blade 200), and the red area with faster air flow velocity is close to the second side 002 of the heat sink, and because the second side 002 corresponds to the fourth side 004, the heat sink can be more conducive to dissipating heat for the heat-generating component 600 located on the fourth side 004 of the target position 500.

[0139] like Fig.12 As shown, in other embodiments, the target component 400 can be connected to the position of the fan blade 200 close to the second side 002. During the rotation of the fan blade 200, the airflow can be driven to flow toward the third side 003 of the target position 500. The heat generating component 600 is located at the third side 003 of the target position 500. Fig.13 As shown, from the air flow velocity distribution diagram, the target component 400 can be connected to the position of the fan blade 200 close to the second side 002 (such as the lower edge of the fan blade 200), and the red area with faster air flow velocity is close to the first side 001 of the heat sink, and because the second side 001 corresponds to the third side 003, the heat sink can be more conducive to dissipating the heat of the heat-generating component 600 located on the third side 003 of the target position 500.

[0140] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0141] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat dissipation device, comprising: Multiple fan blades; A fixing component, the fixing component having a first surface and a second surface, the first surface is adjacent to the second surface, and the first surface faces the fan blade; A target component, wherein a first end of the target component is connected to the fan blade, a second end of the target component is connected to the second surface, the first end extends toward the second end along a first direction to form the target component, at least a portion of the first direction is set at a target angle with the target direction, the target direction is a direction perpendicular to the first surface, and the target angle is not 0°.

2. The heat dissipation device according to claim 1, wherein at least a portion of the first direction is a curve. The bending direction of the curve is convex away from the fan blade; or, the bending direction of the curve is convex toward the fan blade.

3. The heat dissipation device according to claim 1, wherein the first end is connected to an edge of the fan blade facing the fixing component; Among two adjacent blades, there is a distance between the second end of the target component connected to one blade and the other blade.

4. The heat dissipation device as claimed in claim 1, wherein the fan blade has a first portion and a second portion arranged in a direction away from the center of the heat dissipation device, and the target component is connected to the second portion.

5. The heat dissipation device according to claim 4, wherein the thickness of the first portion is smaller than the thickness of the second portion, and the thickness direction is the axial direction of the heat dissipation device; And / or, the second portion is concave facing away from the windward surface of the fan blade, and the first portion is convex toward the windward surface of the fan blade; and / or, the first surface is connected to the second parts of the plurality of blades; And / or, the target component connects the windward side of the fan blade and the fixed component; or, the target component connects the leeward side of the fan blade and the fixed component.

6. The heat dissipation device according to claim 4, wherein the fixing component is connected to a first position of the second portion, and the target component is connected to a second position of the second portion; The first position and the second position are different positions of the second portion and are arranged in a direction close to and away from the center of the heat dissipation device.

7. The heat dissipation device according to claim 1, wherein the target component has a guide surface, the guide surface faces the air flow gap between two adjacent fan blades, and the guide surface is not perpendicular to the axis of the heat dissipation device; in, During the rotation of the fan blade, the guide surface rotates along the axis of the rotor component, driving the fluid in the air flow gap to flow along the axis direction of the heat sink, so that the fluid flows in a direction away from the target component.

8. The heat dissipation device according to claim 1, wherein the fan blade has a first edge and a second edge, and the arrangement direction of the first edge and the second edge is the axial direction of the heat dissipation device; The fixing component is connected to the first edge of the fan blade, the fixing component is connected to the second edge of the fan blade, or the fixing component is connected to a middle position of the fan blade, and the middle position is located between the first edge and the second edge.

9. The heat dissipation device according to claim 1, wherein the second surface is a surface of the fixing component facing the center of the heat dissipation device, and the target component connects a portion of the fan blade located between the fixing component and the center of the heat dissipation device and the second surface; or The second surface is a surface of the fixing component facing away from the center of the heat sink, and the target component connects the portion of the fan blade located on the fixing component away from the center of the heat sink and the second surface; or, The second surface includes a first sub-surface of the fixing component facing the center of the heat sink and a second sub-surface of the fixing component facing away from the center of the heat sink, the target component includes a first reinforcement and a second reinforcement, the first reinforcement and a portion connecting the fan blade between the fixing component and the center of the heat sink and the first sub-surface, the second reinforcement and a portion connecting the fan blade away from the center of the heat sink and the second sub-surface.

10. The heat dissipation device according to claim 1, wherein the first surface is connected to the fan blade, a fillet structure is provided at a connection position between the first surface and the fan blade, and the target component is connected to the fillet structure.

11. The heat sink according to claim 1, wherein the heat sink has a first side and a second side arranged along an axial direction of the heat sink and opposite to each other, the arrangement direction of the target position and the heat sink is perpendicular to the axial direction of the heat sink, and the target position has a third side corresponding to the first side and a fourth side corresponding to the second side; in, The target component is connected to the position of the fan blade close to the first side, and during the rotation of the fan blade, the airflow can be driven to flow toward the direction area of ​​the fourth side of the target position; or, The target component is connected to a position of the fan blade close to the second side, and during the rotation of the fan blade, it can drive the airflow to flow toward a third side of the target position.

12. The heat sink according to claim 1, further comprising a rotor component, wherein the rotor component is rotatable along its axis; The plurality of fan blades are arranged along the circumference of the rotor component; or, the plurality of fan blades include a first fan blade and a second fan blade, the first fan blade connects the rotor component and the fixed component, and the second fan blade connects the fixed component.

13. An electronic device comprising a heat generating component and a heat dissipation device for dissipating heat from the heat generating component; The heat dissipation device comprises: Multiple fan blades; A fixing component, the fixing component having a first surface and a second surface, the first surface is adjacent to the second surface, and the first surface faces the fan blade; A target component, wherein the first end of the target component is connected to the fan blade, the second end of the target component is connected to the second surface, the first end extends toward the second end along a first direction to form the target component, at least a portion of the first direction is set at a target angle with the target direction, the target direction is the arrangement direction of the first surface and the fan blade, and the target angle is not 0°.

14. The electronic device according to claim 13, wherein the heat sink has a first side and a second side arranged along the axial direction of the heat sink and opposite to each other, the arrangement direction of the target position and the heat sink is perpendicular to the axial direction of the heat sink, and the target position has a third side corresponding to the first side and a fourth side corresponding to the second side; in, The target component is connected to the position of the fan blade close to the first side, and during the rotation of the fan blade, the airflow can be driven to flow toward the fourth side of the target position, and the heat generating component is located on the fourth side of the target position; or, The target component is connected to the position of the fan blade close to the second side. During the rotation of the fan blade, the airflow can be driven to flow toward the third side of the target position. The heat-generating component is located on the third side of the target position.

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