Heat dissipation device and electronic equipment

Abstract

The utility model 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, in particular to a heat dissipation device and electronic equipment. BACKGROUND

[0002] The heat dissipation device in the electronic equipment is generally a fan, and the fan blade movement of the fan drives air flow to dissipate heat of the heating components of the electronic equipment.

[0003] The fan blade thickness used in the current fan is relatively thin, so that the fan blade is prone to slight deformation when rotating, resulting in a decline in the heat dissipation performance of the fan. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a heat dissipation device.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A heat dissipation device comprises:

[0007] a plurality of fan blades;

[0008] a reinforcing component, the reinforcing component has a first surface and a second surface, the first surface is adjacent to the second surface, and the first surface faces the fan blades;

[0009] a target component, a first end of the target component is connected to the fan blades, a second end of the target component is connected to the second surface, the first end extends to the second end along a first direction to form the target component, at least a part of the first direction is arranged at a target angle with respect to a target direction, the target direction is a direction perpendicular to the first surface, and the target angle is not 0°.

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

[0011] wherein the bending direction of the curve satisfies at least one of the following conditions:

[0012] the bending direction of the curve is away from the fan blade protrusion, or

[0013] the bending direction of the curve is towards the fan blade protrusion, and the first end is connected to an edge of the fan blade facing the reinforcing component;

[0014] between the second end of the target component connected to one of the fan blades and another fan blade, there is a spacing, 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] The heat dissipation device further comprises at least one of the following conditions:

[0016] The thickness of the first part is smaller than that of the second part, and the thickness direction is the axial direction of the heat dissipation device,

[0017] The second part is recessed away from the windward surface of the fan blade, and the first part is convex toward the windward surface of the fan blade,

[0018] The first surface is connected with the second part of the plurality of fan blades,

[0019] The target component is connected with the windward surface of the fan blade and the reinforcing component,

[0020] Or, the target component is connected with the leeward surface of the fan blade and the reinforcing component.

[0021] The reinforcing component of the heat dissipation device is connected with the first position of the second part, and the target component is connected with the second position of the second part.

[0022] The first position and the second position are different positions of the second part and are arranged along the direction close to and away from the center of the heat dissipation device.

[0023] The target component has a guide surface, which is directed toward the airflow gap between the adjacent two fan blades, and the guide surface is not perpendicular to the axis of the heat dissipation device.

[0024] During the rotation of the fan blade, the guide surface rotates along the axis of the rotor component of the heat dissipation device, and drives the fluid in the airflow gap to flow along the axis direction of the heat dissipation device, so that the fluid flows away from the target component.

[0025] 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.

[0026] The reinforcing component is connected with the first edge of the fan blade, the reinforcing component is connected with the second edge of the fan blade, or the reinforcing component is connected with the middle position of the fan blade, which is between the first edge and the second edge.

[0027] The heat dissipation device satisfies at least one of the following conditions:

[0028] The second surface is the surface of the reinforcing component facing the center of the heat dissipation device, and the target component is connected with the part of the fan blade between the reinforcing component and the center of the heat dissipation device and the second surface, or

[0029] The second surface is a surface of the reinforcing member facing away from the center of the heat dissipation device, and the target component is connected to the part of the fan blade located on the reinforcing member away from the center of the heat dissipation device and the second surface, or

[0030] The second surface includes a first sub-surface of the reinforcing member facing the center of the heat dissipation device and a second sub-surface of the reinforcing member facing away from the center of the heat dissipation device, the target component includes a first reinforcing member and a second reinforcing member, the first reinforcing member is connected to the part of the fan blade located between the reinforcing member and the center of the heat dissipation device and the first sub-surface, and the second reinforcing member is connected to the part of the fan blade located on the reinforcing member away from the center of the heat dissipation device and the second sub-surface.

[0031] The first surface of the heat dissipation device is connected to the fan blade, and the connection position of the first surface and the fan blade is provided with a rounded structure, and the target component is connected to the rounded structure.

[0032] The heat dissipation device has a first side and a second side arranged in the axial direction of the heat dissipation device and opposite to each other, and a target position is perpendicular to the axial direction of the heat dissipation device along the arrangement direction of the heat dissipation device, the target position has a third side corresponding to the first side and a fourth side corresponding to the second side.

[0033] The relationship between the target component and the fan blade satisfies at least one of the following conditions:

[0034] The target component is connected to the part of the fan blade close to the first side, and in the process of rotation of the fan blade, the airflow can be driven to flow to the fourth side of the target position, or

[0035] The target component is connected to the part of the fan blade close to the second side, and in the process of rotation of the fan blade, the airflow can be driven to flow to the third side of the target position.

[0036] The heat dissipation device further comprises a rotor component, and the rotor component can rotate along its axis.

[0037] The relationship between the fan blade and the rotor component satisfies at least one of the following conditions:

[0038] A plurality of fan blades are arranged along the circumference of the rotor component, or

[0039] A plurality of fan blades include a first fan blade and a second fan blade, the first fan blade is connected to the rotor component and the reinforcing member, and the second fan blade is connected to the reinforcing member.

[0040] The application also provides an electronic device, comprising a heat generating component and a heat dissipation device for dissipating heat of the heat generating component;

[0041] The heat dissipation device comprises:

[0042] a plurality of fan blades;

[0043] a reinforcing component having a first surface and a second surface, the first surface being adjacent to the second surface, the first surface facing the fan blades;

[0044] a target component, a first end of the target component being connected to the fan blades, a second end of the target component being connected to the second surface, the first end extending to the second end in a first direction to form the target component, at least a part of the first direction being arranged at a target angle with respect to a target direction, the target direction being an arrangement direction of the first surface and the fan blades, the target angle being other than 0°.

[0045] Optionally, in the electronic device, at least a part of the first direction is a curve,

[0046] wherein a bending direction of the curve satisfies at least one of the following conditions:

[0047] the bending direction of the curve is away from the fan blades,

[0048] the bending direction of the curve is towards the fan blades, and the first end is connected to an edge of the fan blades facing the reinforcing component;

[0049] of the two adjacent fan blades of the heat dissipation device, the second end of the target component connected to one of the fan blades has a spacing with the other fan blade, the fan blades have a first part and a second part arranged in a direction away from a center of the heat dissipation device, and the target component is connected to the second part;

[0050] wherein the heat dissipation device further comprises at least one of the following conditions:

[0051] a thickness of the first part is smaller than a thickness of the second part, the thickness being in an axial direction of the heat dissipation device,

[0052] and / or, the second part is recessed away from a windward surface of the fan blades, and the first part is protruded towards the windward surface of the fan blades,

[0053] and / or, the first surface is connected to the second part of a plurality of the fan blades,

[0054] and / or, the target component is connected to the windward surface of the fan blades and the reinforcing component,

[0055] Or, the target component connects the leeward side of the fan blade with the reinforcing component;

[0056] The reinforcing component of the heat dissipation device is connected with a first position of the second part, and the target component is connected with a second position of the second part;

[0057] The first position and the second position are different positions of the second part and are arranged along a direction close to and away from the center of the heat dissipation device;

[0058] 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;

[0059] Wherein, during the rotation of the fan blade, the guide surface rotates along the axis of the rotor component of the heat dissipation device, and drives the fluid in the airflow gap to flow along the axis direction of the heat dissipation device, so that the fluid flows away from the target component;

[0060] 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 axis direction of the heat dissipation device;

[0061] The reinforcing component is connected to the first edge of the fan blade, the reinforcing component is connected to the second edge of the fan blade, or the reinforcing component is connected to a middle position of the fan blade, and the middle position is between the first edge and the second edge;

[0062] Wherein, the heat dissipation device satisfies at least one of the following multiple conditions:

[0063] The second surface is a surface of the reinforcing component facing the center of the heat dissipation device, and the target component is connected to the part of the fan blade between the reinforcing component and the center of the heat dissipation device and the second surface, or

[0064] The second surface is a surface of the reinforcing component away from the center of the heat dissipation device, and the target component is connected to the part of the fan blade away from the center of the heat dissipation device and the second surface, or

[0065] The second surface includes a first sub-surface of the reinforcing component facing the center of the heat dissipation device and a second sub-surface of the reinforcing component away from the center of the heat dissipation device, and the target component includes a first reinforcing part and a second reinforcing part, the first reinforcing part is connected to the part of the fan blade between the reinforcing component and the center of the heat dissipation device and the first sub-surface, and the second reinforcing part is connected to the part of the fan blade away from the center of the heat dissipation device and the second sub-surface;

[0066] The first surface of the heat dissipation device is connected with the fan blade, and a rounded structure is arranged at the connection position of the first surface and the fan blade.

[0067] The heat dissipation device has a first side and a second side arranged in the axial direction of the heat dissipation device and opposite to each other, and a target position is perpendicular to the axial direction of the heat dissipation device in the arrangement 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.

[0068] The relationship between the target component and the fan blade satisfies at least one of the following conditions:

[0069] The target component is connected to the position of the fan blade close to the first side, and in the process of rotation of the fan blade, the airflow can be driven to flow to the fourth side of the target position, or

[0070] The target component is connected to the position of the fan blade close to the second side, and in the process of rotation of the fan blade, the airflow can be driven to flow to the third side of the target position.

[0071] The heat dissipation device further comprises a rotor component, and the rotor component can rotate along its axis.

[0072] The relationship between the fan blade and the rotor component satisfies at least one of the following conditions:

[0073] A plurality of fan blades are arranged in the circumferential direction of the rotor component, or

[0074] The plurality of fan blades comprise a first fan blade and a second fan blade, the first fan blade is connected to the rotor component and the reinforcing component, and the second fan blade is connected to the reinforcing component.

[0075] Optionally, in the electronic device, the heat dissipation device has a first side and a second side arranged in the axial direction of the heat dissipation device and opposite to each other, and a target position is perpendicular to the axial direction of the heat dissipation device in the arrangement 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.

[0076] The relationship between the target component and the fan blade satisfies at least one of the following conditions:

[0077] The target component is connected to the position of the fan blade close to the first side, and in the process of rotation of the fan blade, the airflow can be driven to flow to the fourth side of the target position, and the heat generating component is located on the fourth side of the target position; or

[0078] The target component is connected to a position of the fan blade close to the second side, and the fan blade can drive the airflow to flow to the third side of the target position in the process of rotation, and the heat generating component is located on the third side of the target position. BRIEF DESCRIPTION OF DRAWINGS

[0079] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0080] Figure 1 A front view structural schematic diagram of a first heat dissipation device provided by the embodiment of the present application;

[0081] Figure 2 A side view structural schematic diagram of the first heat dissipation device provided by the embodiment of the present application;

[0082] Figure 3 A front view structural schematic diagram of a first heat dissipation device provided by the embodiment of the present application; Figure 2 A partial enlarged schematic diagram of the "S" part in the figure;

[0083] Figure 4 A structural schematic diagram of a first direction provided by the embodiment of the present application;

[0084] Figure 5 An airflow velocity distribution diagram of the first direction g provided by the embodiment of the present application;

[0085] Figure 6 An airflow velocity distribution diagram of the first direction e provided by the embodiment of the present application;

[0086] Figure 7 A first three-dimensional structural schematic diagram of the first heat dissipation device provided by the embodiment of the present application;

[0087] Figure 8 A second three-dimensional structural schematic diagram of the first heat dissipation device provided by the embodiment of the present application;

[0088] Figure 9 A front view structural schematic diagram of a first heat dissipation device provided by the embodiment of the present application; Figure 8 A partial enlarged schematic diagram of the "A" part in the figure;

[0089] Figure 10 A first position schematic diagram of the heat dissipation device and the heat generating component provided by the embodiment of the present application;

[0090] Figure 11 An airflow velocity distribution diagram of the heat dissipation device and the heat generating component in the first position provided by the embodiment of the present application;

[0091] Figure 12 A second position schematic view of the heat dissipation device and the heat generating component provided by the embodiment of the present application;

[0092] Figure 13 A second position air flow velocity distribution diagram of the heat dissipation device and the heat generating component provided by the embodiment of the present application;

[0093] Figure 14 A front view structural schematic diagram of the second heat dissipation device provided by the embodiment of the present application;

[0094] Figure 15 A three-dimensional structural schematic diagram of the second heat dissipation device provided by the embodiment of the present application;

[0095] Figure 16 A front view structural schematic diagram of the third heat dissipation device provided by the embodiment of the present application;

[0096] Figure 17 A three-dimensional structural schematic diagram of the third heat dissipation device provided by the embodiment of the present application;

[0097] Figure 18 A front view structural schematic diagram of the fourth heat dissipation device provided by the embodiment of the present application;

[0098] Figure 19 A three-dimensional structural schematic diagram of the fourth heat dissipation device provided by the embodiment of the present application;

[0099] Figure 20 A front view structural schematic diagram of the fifth heat dissipation device provided by the embodiment of the present application;

[0100] Figure 21 A three-dimensional structural schematic diagram of the fifth heat dissipation device provided by the embodiment of the present application;

[0101] Figure 22 A front view structural schematic diagram of the sixth heat dissipation device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0102] The present application discloses a heat dissipation device and an electronic device.

[0103] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0104] In the description of the embodiments of the present application, the technical terms "first", "second", and the like 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 "a plurality of" is more than two, unless otherwise specifically limited. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar terms mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0105] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0106] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and to fully convey 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 components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0107] It should be noted that in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0108] It should also be noted that in the description of the present disclosure, unless otherwise specifically stated and limited, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0109] It should be noted that the technical terms or scientific terms used in the present application should be understood as their general meanings understood by the skilled in the art unless otherwise specified. For example, Figures 1-7 As shown in the drawings, the embodiment of the present application provides a heat dissipation device, which comprises a plurality of fan blades 200, a fixed component 300 and a target component 400.

[0110] The fixed component 300 can have a first surface 301 and a second surface 302, the first surface 301 can be adjacent to the second surface 302, and the first surface 301 can face the fan blades 200. The fixed component 300 can be directly or indirectly connected to the rotor component 100 or the plurality of fan blades 200, thereby enhancing the bending resistance of the fan blades 200.

[0111] The first end 401 of the target component 400 can be connected to the fan blades 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 be connected to the fan blades 200 and the fixed component 300, and the second surface 302 can be arranged at an angle with the first surface 301.

[0112] The first end 401 can extend to the second end 402 along a first direction to form the target component 400, at least a part of the first direction is arranged at a target angle with the target direction X, the target direction X is perpendicular to the arrangement direction of the first surface 301, and the target angle is not 0°.

[0113] It should be noted that the target component 400 includes one end connected to the second surface 302 (the second end 402) and one end connected to the fan blades 200 (the first end 401). From these two endpoints (the first end 401 and the second end 402), the structure formed by extending is the target component 400. 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. From the first end 401, any path can be extended to the second end 402. The extension is not a straight line extension direction, but is an extension along the first direction. That is, the above extension does not only include the direct extension of the first end 401 to the second end 402, but refers to the structure extending from the first end 401 (the end connected to the fan blades 200) to the second end 402 (the end connected to the second surface 302) along the first direction, which is the target component 400. Moreover, at least a part of the first direction includes the entire first direction and a part of the first direction. The part of the first direction can be the structure near the first end 401 of the first direction, the structure near the second end 402, or the structure in the middle region of the first direction, etc.

[0114] The first direction can be a straight line direction, i.e., the extending direction of the first end 401 of the target component 400 to the second end 402 is a straight line direction. As shown in the a direction, the first direction is a straight line direction arranged at the target angle with the target direction X. Figure 4 The first direction can be a straight line direction, i.e., the extending direction of the first end 401 of the target component 400 to the second end 402 is a straight line direction. As shown in the a direction, the first direction is a straight line direction arranged at the target angle with the target direction X.

[0115] The first direction can be a straight line direction, i.e., the extending direction of the first end 401 of the target component 400 to the second end 402 is a straight line direction. As shown in the a direction, the first direction is a straight line direction arranged at the target angle with the target direction X. Figure 4 The first direction can be a straight line direction, i.e., the extending direction of the first end 401 of the target component 400 to the second end 402 is a straight line direction. As shown in the a direction, the first direction is a straight line direction arranged at the target angle with the target direction X.

[0116] The target component 400 can be integrally formed with the fan blade 200 and the fixed component 300 to achieve the effect of connecting the target component 400, the fan blade 200 and the fixed component 300. In the integrally formed structure, the end of the target component 400 away from the second surface 302 is the first end 401. That is, the first end 401 protrudes from the second surface 302.

[0117] The target component 400 can be integrally formed with the fan blade 200, and the connection between the target component 400 and the fixed component 300 can be achieved by assembly (such as gluing, welding or concave-convex matching).

[0118] The target component 400 can be integrally formed with the fan blade 200, and the connection between the target component 400 and the fixed component 300 can be achieved by assembly (such as gluing, welding or concave-convex matching).

[0119] The target component 400 can be integrally formed with the fan blade 200, and the connection between the target component 400 and the fixed component 300 can be achieved by assembly (such as gluing, welding or concave-convex matching).

[0120] The heat dissipation device provided in this application embodiment allows the fan blade 200 to be connected to the first end 401 of the target component 400 and the second end 402 of the target component 400 to be connected to the second surface 302, thus indirectly connecting the fan blade 200 to the fixed component 300 via the target component 400. That is, at least one fan blade 200 is connected to the fixed component 300 via the target component 400, and the portion connecting the fan blade 200 to the target component 400 is indirectly connected to the same fixed component 300, improving the positional stability of the portion connecting the fan blade 200 to the target component 400 relative to the fixed component 300. During the rotation of the fan blade 200 driven by the rotor component 100, the portion connecting the fan blade 200 to the target component 400 receives support from the fixed component 300 via the target component 400, reducing the displacement of the portion connecting the fan blade 200 to the target component 400 in the overall structure of the heat dissipation device. This effectively strengthens the deformation resistance of the fan blade 200 and reduces the deformation caused by airflow, thereby ensuring the performance of the heat dissipation device.

[0121] Since the first surface 301 can be adjacent to the second surface 302, the first surface 301 and the second surface 302 can be arranged at an angle. The first surface 301 faces the fan blade 200. Therefore, the second surface 302 and the side of the fan blade 200 facing the fixing component 300 (the side opposite to the first surface 301) are arranged 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 fixing component 300. Since the first end 401 can extend to the second end 402 along the first direction to form the target component 400, and at least a part of the first direction is arranged at a target angle with the target direction X, the size of the target component 400 along the first direction can be increased based on the fixed thickness of the fixing component 300, thereby increasing the connection area between the target component 400 and the fixing component 300, and further improving the connection stability between the target component 400 and the fixing component 300. Therefore, the support effect obtained at the connection between the fan blade 200 and the target component 400 can be further improved, thereby further strengthening the deformation resistance of the fan blade 200.

[0122] At least a portion of the first direction is a curve.

[0123] In some embodiments, the first direction is entirely curved. For example... Figure 4 As shown, both directions c and e are curves. Direction c is formed by two curves with opposite directions, creating an "S" shape. At least a portion of each curve is set at a target angle to the target direction X. Direction e consists of a single curve, which is also set at a target angle to the target direction X.

[0124] In some embodiments, the first direction is a straight line. Figure 4 As shown in FIG. 6, the b direction and the d direction are structures formed by a combination of a part of curve and a part of 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 are arranged along the target direction X, and the first curve is arranged at the target angle with 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 the target angle with the target direction X.

[0125] In the above embodiments, since the curve is arranged at the target angle with the target direction X as a part, the connection area of the target component 400 and the second surface 302 is increased, thereby improving the stability of the overall structure formed by the connection of the fan blade 200, the target component 400 and the fixed component 300, and further strengthening the deformation resistance of the fan blade 200.

[0126] In addition, compared with the arrangement of the straight line at the target angle with the target direction X, the target component 400 and the fan blade 200 are effectively arranged at an included angle, so that the noise generated by the vortex at the included angle position and other factors is avoided, and the noise reduction effect is further achieved.

[0127] Taking the a direction as the first direction, the first end 401 can be extended to the second end 402 along the e direction to form the target component 400, so that the target component 400 is a straight line plate, and the first end 401 of the target component 400 is connected to the fan blade 200, so that the connection structure of the target component 400 and the fan blade 200 is an included angle structure. The included angle position is prone to generate vortex, thereby generating noise, and there is a problem of stress concentration.

[0128] In some embodiments, the target angle can be 90°, and taking the g direction as the first direction, the g direction is perpendicular to the target direction X, the first end 401 can be extended to the second end 402 along the e direction to form the target component 400, so that the target component 400 is a straight line plate, and the first end 401 of the target component 400 is connected to the fan blade 200, so that the connection structure of the target component 400 and the fan blade 200 is an included angle structure. The included angle position is prone to generate vortex, thereby generating noise, and there is a problem of stress concentration. 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 less effect on the airflow, so that the air volume will not increase. Figure 5 As shown in FIG. 8, from the airflow velocity distribution diagram, in the implementation that the target component 400 is a straight line plate and is perpendicular to the target direction X (the axis of the rotor component 100), the blue area with slow airflow velocity is more.

[0129] In some embodiments, the target angle can not be 90°. As shown in Figure 4 The a direction is the first direction.

[0130] With the e direction as the first direction, the first end 401 can extend 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 of the target component 400 and the fan blade 200 is an arc-shaped structure, avoiding the formation of an included angle to generate vortex, thereby effectively reducing noise. Also, stress concentration is avoided at the connection structure of the target component 400 and the fan blade 200, improving the service life. Moreover, 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, which can serve as an auxiliary windward surface to drive airflow, thereby increasing the air output. As shown in Figure 6 From the airflow velocity distribution diagram, in the embodiment in which the target component 400 is an arc-shaped plate, the blue area in which the airflow speed is relatively slow is less. This makes the overall flow of the heat dissipation device greater than Figure 5 the overall flow of the heat dissipation device in the embodiment in which the target component 400 is a straight line plate and perpendicular to the target direction X.

[0131] The first direction can also be a zigzag line formed by a plurality of straight lines connected in sequence, as shown in Figure 4 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 opposite parallel and arranged along the target direction X, and the sixth straight line is arranged at a target angle with the target direction X.

[0132] In some embodiments, the bending direction of the curve is convex away from the fan blade 200. As shown in Figure 3 The bending direction of the curve is convex away from the fan blade 200, so that the target component 400 has a concave arc surface facing the airflow gap between the adjacent two fan blades 200. In the process of rotating the fan blade 200 driven by the rotor component 100, the concave arc surface rotates along the axis of the rotor component 100, and the airflow flowing to the target component 400 can converge on the concave arc surface, facilitating the direction of the airflow.

[0133] In other embodiments, the bending direction of the curve is convex toward the fan blade 200, so that the target component 400 has a convex arc surface facing away from the airflow gap between the adjacent two fan blades 200. In the process of rotating the fan blade 200 driven by the rotor component 100, the convex arc surface can avoid head-on collision with the airflow flowing thereto, reducing the kinetic energy loss of the airflow in the flow process.

[0134] In some embodiments, the first end 401 of the target component 400 may be connected to the edge of the fan blade 200 facing the fixed component 300. The edge of the fan blade 200 facing the fixed component 300 may be either the upper or lower edge of the fan blade 200. In two adjacent fan blades 200, the second end 402 of the target component 400 connected to one fan blade 200 may have a gap with the other fan blade 200. This arrangement creates a gap between the portions of adjacent fan blades 200 connected to the target component 400, allowing fluid within the airflow gap between adjacent fan blades 200 to pass through the portions connecting the adjacent fan blades 200 to the target component 400. This saves on the amount of material used in the heat dissipation device, avoids excessive weight due to excessive material usage, and ensures the performance of the heat dissipation device.

[0135] Alternatively, the parts of two adjacent fan blades 200 connected to the target component 400 can be connected through the target component 400 to enhance the deformation resistance of the fan blades 200.

[0136] 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, during the rotation of the fan blade 200 driven by the rotor component 100, 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. The connection between the target component 400 and the second portion 220 provides support for the portion of the fan blade 200 with a larger deformation, thereby further reducing the deformation of the fan blade 200.

[0137] like Figure 6 As shown, 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 this arrangement, per unit dimension along the radial direction of the heat dissipation device, the windward area of ​​the second part 220 is greater than that of the first part 210. Without the target component 400, the deformation of the second part 220 is further greater than that of the first part 210. Therefore, by connecting the target component 400 to the second part 220, the deformation resistance of the fan blade 200 is ensured while meeting the performance requirements of the heat dissipation device.

[0138] In some embodiments, the second part 220 can be recessed away from the windward surface of the fan blade 200, and the first part 210 can be protruded towards the windward surface of the fan blade 200. By the above arrangement, the fan blade 200 forms an "S" structure in a direction away from the center of the heat dissipation device, thereby ensuring the performance of the heat dissipation device, such as reducing airflow vibration to reduce noise, increasing the surface area of the fan blade 200 per unit size in the radial direction of the heat dissipation device to improve heat dissipation effect, etc.

[0139] In some embodiments, the first surface 301 is connected to the second part 220 of the plurality of fan blades 200. The deformation amount of the first part 210 is less than that of the second part 220, and therefore, the first surface 301 is connected to the second part 220 of the plurality of fan blades 200, so that the fixing member 300 supports and strengthens the position of the fan blade 200 with a larger deformation amount, so as to further strengthen the anti-deformation of the fan blade 200.

[0140] The fixing member 300 can be connected to the first position of the second part 220, and the target member 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 arranged in a direction approaching and away from the rotor member 100. That is, the fixing member 300, the target member 400 (indirectly connected to the fixing member 300) and the different positions of the second part 220 of the fan blade 200 are connected, and the first position where the fixing member 300 is connected to the second part 220 and the second position where the target member 400 is connected to the second part 220 are arranged in a direction approaching and away from the rotor member 100, so that the second part 220 is connected to the fixing member 300 and the target member 400 at different positions in the radial direction of the heat dissipation device, further improving the anti-deformation strength of the second part 220 of the fan blade 200.

[0141] Specifically, the fixing member 300 is a ring-shaped member, and the center line coincides with the axis of the rotor member 100. In the state that the plurality of fan blades 200 are connected to the fixing member 300, the combined structure of the rotor member 100, the fan blade 200 and the fixing member 300 of the heat dissipation device forms a center-symmetrical structure, which is beneficial to the stability during rotation of the heat dissipation device.

[0142] As shown in Figure 1 , Figure 14 and Figure 16 , in some embodiments, the target member 400 connects the windward surface of the fan blade 200 and the fixing member 300. Therefore, the fixing member 300 has a surface facing the same direction as the windward surface of the fan blade 200, which can serve as an auxiliary windward surface to contact the airflow, thereby further improving the flow rate.

[0143] As shown in Figure 18 and Figure 19As shown, in some other embodiments, the target component 400 connects the leeward side of the fan blade 200 and the fixed component 300. That is, the target component 400 serves as a support structure supported between the leeward side of the fan blade 200 and the fixed component 300, and can improve the support effect of the target component 400 on the fan blade 200.

[0144] The heat dissipation device in the embodiments of the present application can serve as a centrifugal impeller, that is, in the process of rotating the heat dissipation device along its axis, the airflow enters the center of the heat dissipation device and flows out from the outer periphery of the heat dissipation device, and the flowing-out direction is perpendicular to the axis of the heat dissipation device. Therefore, the equipment (such as the heat-generating component 600) to be cooled by the heat dissipation device needs to be located at the outer periphery of the heat dissipation device, and the arrangement direction of the heat dissipation device is perpendicular to the axis. Therefore, the relative position of the heat dissipation device and the equipment to be cooled by the heat dissipation device is limited.

[0145] To solve the above problem, the target component 400 has a guide surface facing the airflow gap between the adjacent two fan blades 200, and the guide surface is not perpendicular to the axis of the rotor component 100; wherein in the process of rotating the fan blade 200 driven by the rotor component 100, the guide surface rotates along the axis of the rotor component 100, and drives the fluid in the airflow gap to flow along the axis direction of the rotor component 100, so as to flow away from the target component 400. That is, the guide surface of the target component 400 can guide the flow direction of the airflow, so as to avoid the airflow flowing out of the heat dissipation device along the direction perpendicular to the axis of the rotor component 100.

[0146] Wherein, since 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 the adjacent two fan blades 200, the guide surface serves as a similar windward surface of an axial flow fan. In the process of rotating the fan blade 200 driven by the rotor component 100, the guide surface can drive the airflow in the airflow gap to flow along the axial direction of the heat dissipation device (the axis direction of the rotor component 100). Combined with the centrifugal effect of the fan blade 200, the airflow flows away from the rotor component 100 at a certain inclination angle with respect to the axis direction of the rotor component 100. As shown in the figure, Figure 3 As shown, the guide surface of the target component 400 in the embodiments of the present application can be a concave arc surface of the target component 400. Of course, other structures can also be provided, which are not limited here.

[0147] The fan blade 200 has a first edge and a second edge, and the arrangement direction of the first edge and the second edge is the axis direction of the rotor component 100. Wherein, the fixed component 300 connects the first edge of the fan blade 200, the fixed component 300 connects the second edge of the fan blade 200, or the fixed component 300 connects the middle position of the fan blade 200, and the middle position is between the first edge and the second edge.

[0148] The first edge is the upper edge of the fan blade 200, and the second edge is the lower edge of the fan blade 200. Therefore, for a centrifugal impeller, the upper edge and the lower edge are arranged along the axial direction. Therefore, the fixing member 300 is connected to the first edge of the fan blade 200, i.e., the fixing member 300 is connected to the upper edge of the fan blade 200. In order to avoid increasing the overall thickness of the heat dissipation device, the third face of the fixing member 300 opposite to the first face can be aligned with or coplanar with the upper edge of the fan blade 200.

[0149] The fixing member 300 is connected to the second edge of the fan blade 200, i.e., the fixing member 300 is connected to the lower edge of the fan blade 200. In addition, the fixing member 300 can also be connected to the middle position of the fan blade 200, i.e., among the adjacent two fan blades 200, the fixing member 300 is connected to the windward face of one fan blade 200 and the leeward face of the other fan blade 200.

[0150] As shown in Figure 14 and Figure 15 , in some embodiments, the second face 302 is the face of the fixing member 300 facing the rotor member 100, and the target member 400 is connected to the part of the fan blade 200 between the fixing member 300 and the rotor member 100 and the second face 302. That is, the target member 400 is located on the side of the fixing member 300 facing the center of the heat dissipation device.

[0151] In Figure 14 and Figure 15 , the target member 400 is connected to the windward face of the fan blade 200 and the fixing member 300. The target member 400 can also be connected to the leeward face of the fan blade 200 and the fixing member 300.

[0152] As shown in Figure 16 , Figure 17 , Figure 20 and Figure 21 , in other embodiments, the second face 302 is the face of the fixing member 300 away from the rotor member 100, and the target member 400 is connected to the part of the fan blade 200 away from the rotor member 100 and the second face 302 of the fixing member 300.

[0153] In Figure 16 and Figure 17 , the target member 400 is connected to the windward face of the fan blade 200 and the fixing member 300. In Figure 20 and Figure 21 , the target member 400 is connected to the leeward face of the fan blade 200 and the fixing member 300.

[0154] As shown in Figure 1 , Figure 7 , Figure 18 and Figure 19As shown, in other embodiments, the second surface 302 comprises a first sub-surface of the fixing member 300 facing the rotor member 100 and a second sub-surface of the fixing member 300 facing away from the rotor member 100, the target member 400 comprises a first reinforcing member 410 and a second reinforcing member 420, the first reinforcing member 410 and the portion of the connecting fan blade 200 between the fixing member 300 and the rotor member 100 and the first sub-surface, the second reinforcing member 420 and the portion of the connecting fan blade 200 away from the fixing member 300 and the second sub-surface.

[0155] In Figure 1 and Figure 7 , the target member 400 connects the windward surface of the connecting fan blade 200 and the fixing member 300. In Figure 18 and Figure 19 , the target member 400 connects the leeward surface of the connecting fan blade 200 and the fixing member 300.

[0156] The first projection area of the target member 400 along the second direction can be located within the second projection area of the fixing member 300 along the second direction, the second direction being perpendicular to the axial direction of the rotor member 100. That is, the second direction is the radial direction of the heat dissipation device. So that the size of the target member 400 along the axial direction does not exceed the size of the fixing member 300 along the axial direction, thereby facilitating the demolding operation of the target member 400 and the fixing member 300 as an integral molding structure. And the part of the target member 400 located on the side of the fixing member 300 facing away from the fan blade 200 cannot play a role in strengthening the deformation resistance of the fan blade 200, so that the size of the target member 400 along the axial direction does not exceed the size of the fixing member 300 along the axial direction also avoids material waste.

[0157] As Figure 7 shown, in order to further avoid stress concentration, the first surface 301 is connected with the fan blade 200, and the connecting position of the first surface 301 and the fan blade 200 is provided with a fillet structure 310, and the target member 400 is connected with the fillet structure 310.

[0158] In the embodiment in which the target member 400 is an arc-shaped plate, the diameter of the fillet structure 310 is smaller than the minimum diameter of the connecting surface of the target member 400 for connecting with the fillet structure 310.

[0159] As Figure 1 , Figure 5 and Figure 6As shown, the fixing component 300 extends along the direction of the fan blade 200 for a certain length. The fixing component 300 can be connected only with the second part 220 of the fixing component 300. The fixing component 300 can also be connected only with the first part 210 of the fixing component 300. The fixing component 300 can also be connected between the first part 210 and the second part 220 of the fixing component 300 or connected with both 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 to the center of the heat dissipation device, so that the fixing component 300 is connected with the rotor component 100.

[0160] As shown, Figure 10 The heat dissipation device has a first side 001 and a second side 002 arranged along the axis direction of the rotor component 100 and opposite to each other. The target position 500 is perpendicular to the axis direction of the rotor component 100. 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.

[0161] The target component 400 can be connected to the position of the fan blade 200 close to the first side 001. During the rotation of the fan blade 200, the airflow can be guided to flow to the area facing the fourth side 004 of the target position 500. As shown, Figure 11 From the airflow 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). The red area with faster airflow velocity is close to the second side 002 of the heat dissipation device. Since the second side 002 corresponds to the fourth side 004, the heat dissipation device can be more conducive to dissipating heat from the heat generating component 600 located at the fourth side 004 of the target position 500.

[0162] As shown, Figure 12 The target component 400 can also 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 guided to flow to the third side 003 of the target position 500. As shown, Figure 13 From the airflow 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). The red area with faster airflow velocity is close to the first side 001 of the heat dissipation device. Since the second side 001 corresponds to the third side 003, the heat dissipation device can be more conducive to dissipating heat from the heat generating component 600 located at the third side 003 of the target position 500.

[0163] Through the above setting, the heat dissipation requirement of the equipment (such as the heat generating component 600) to be cooled by the heat dissipation device arranged on the third side 003 or the fourth side 004 of the target position 500 can be met by adjusting the setting position of the target component 400, and the heat dissipation device is not limited to the equipment (such as the heat generating component 600) to be cooled by the heat dissipation device arranged on the target position 500 to have a better heat dissipation effect. Therefore, the relative position limitation of the heat dissipation device and the equipment to be cooled by the heat dissipation device is reduced, and the heat dissipation device and the equipment to be cooled by the heat dissipation device can be arranged more flexibly.

[0164] As shown in Figures 1-21 In some embodiments, the heat dissipation device further includes a rotor component 100 rotatable along an axis thereof, and a plurality of fan blades 200 arranged along a circumferential direction of the rotor component 100. That is, the rotor component 100 is directly connected with the plurality of fan blades 200, thereby driving the plurality of fan blades 200 to rotate along the axis of the rotor component 100.

[0165] As shown in Figure 22 In some embodiments, the heat dissipation device further includes a rotor component 100 rotatable along an axis thereof, and a plurality of fan blades 200 arranged along a circumferential direction of the rotor component 100. That is, the rotor component 100 is directly connected with the plurality of fan blades 200, thereby driving the plurality of fan blades 200 to rotate along the axis of the rotor component 100.

[0166] In some embodiments, the plurality of fan blades 200 can include a first fan blade 201 connected with the rotor component 100 and the fixed component 300, and a second fan blade 202 connected with the fixed component 300. The first fan blade 201 and the second fan blade 202 can be different fan blades, and the second fan blade 202 can not be directly connected with the rotor component 100.

[0167] In some embodiments, the first fan blade 201 can be connected with a first position of the fixed component 300, and the second fan blade 202 can be connected with a second position of the fixed component 300. The first position and the second position can be located on different sides of the fixed component 300, and the first position and the second position can be staggered.

[0168] The embodiments of the present application also provide an electronic device including a heat generating component 600 and a heat dissipation device for cooling the heat generating component 600.

[0169] The heat dissipation device comprises a plurality of fan blades 200, a fixed component 300 and a target component 400, the plurality of fan blades 200 are arranged along the circumferential direction of the rotor component 100; the fixed component 300 has a first surface 301 and a second surface 302, the first surface 301 is adjacent to the second surface 302, and the first surface 301 faces the fan blades 200; a first end 401 of the target component 400 is connected to the fan blades 200, and a second end 402 of the target component 400 is connected to the second surface 302, the target component 400 is formed by the first end 401 extending to the second end 402 along a first direction, at least a part of the first direction is arranged at a target angle with respect to a target direction, the target direction is the arrangement direction of the first surface 301 and the fan blades 200, and the target angle is not 0°.

[0170] The electronic device provided by the embodiment of the present application can obtain the support of the fixed component 300 through the target component 400 at the position where the fan blades 200 are connected to the target component 400 in the process of rotating the heat dissipation device and dissipating heat from the heat generating component 600, and the arrangement of at least a part of the first direction at the target angle with respect to the target direction X can increase the size of the target component 400 along the first direction, thereby increasing the connection area of the target component 400 and the fixed component 300, and further improving the connection stability of the target component 400 and the fixed component 300. Thus, the displacement amount of the position where the fan blades 200 are connected to the target component 400 on the overall structure of the heat dissipation device is reduced, thereby effectively enhancing the deformation resistance of the fan blades 200, reducing the deformation amount of the fan blades 200 caused by the influence of the airflow, and ensuring the performance of the heat dissipation device, so as to ensure the heat dissipation effect of the heat dissipation device on the heat generating component 600, thereby ensuring the stable operation of the electronic device.

[0171] As shown in Figure 10 The heat dissipation device has a first side 001 and a second side 002 arranged in the axial direction of the rotor component 100 and opposite to each other, the target position 500 is perpendicular to the arrangement direction of the heat dissipation device and 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.

[0172] In some embodiments, the target component 400 can be connected to the position of the fan blades 200 close to the first side 001, and in the process of rotating the fan blades 200, the airflow can be driven to flow to the area facing the fourth side 004 of the target position 500, and the heat generating component 600 is located at the fourth side 004 of the target position 500. As shown in Figure 11As shown in the airflow velocity distribution diagram, the target component 400 can be connected to the fan blade 200 near the first side 001 (such as the upper edge of the fan blade 200). The red area with faster airflow velocity is close to the second side 002 of the heat dissipation device. Since the second side 002 corresponds to the fourth side 004, the heat dissipation device can better dissipate heat from the heat-generating component 600 located on the fourth side 004 at the target position 500.

[0173] like Figure 12 As shown, in other embodiments, the target component 400 can be connected to the fan blade 200 near the second side 002. During the rotation of the fan blade 200, it can drive the airflow towards the third side 003 of the target position 500, and the heating component 600 is located on the third side 003 of the target position 500. Figure 13 As shown in the airflow velocity distribution diagram, the target component 400 can be connected to the fan blade 200 near the second side 002 (such as the lower edge of the fan blade 200). The red area with faster airflow velocity is close to the first side 001 of the heat dissipation device. Since the second side 001 corresponds to the third side 003, the heat dissipation device can better dissipate heat from the heat-generating component 600 located on the third side 003 at the target position 500.

[0174] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0175] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat dissipating device, characterized by, The heat dissipation device comprises: a plurality of blades; a reinforcing component, the reinforcing component having a first surface and a second surface, the first surface and the second surface being adjacent, the first surface facing the blades; a target component, a first end of the target component being connected to the blades, a second end of the target component being connected to the second surface, the first end extending to the second end in a first direction to form the target component, at least a part of the first direction being arranged at a target angle with respect to a target direction, the target direction being a direction perpendicular to the first surface, the target angle not being 0°.

2. The heat dissipating device of claim 1, wherein At least a part of the first direction is a curve, wherein the bending direction of the curve satisfies at least one of the following conditions: the bending direction of the curve is convex away from the blades, or the bending direction of the curve is convex toward the blades, the first end being connected to an edge of the blades facing the reinforcing component; of the adjacent two blades of the heat dissipation device, the second end of the target component connected to one of the blades has a spacing with the other blade, the blades have a first part and a second part arranged in a direction away from the center of the heat dissipation device, the target component being connected to the second part; wherein the heat dissipation device further comprises at least one of the following conditions: the thickness of the first part is smaller than the thickness of the second part, the direction of the thickness being the axial direction of the heat dissipation device, and / or, the second part is recessed away from the windward surface of the blades, the first part is convex toward the windward surface of the blades, and / or, the first surface is connected to the second part of a plurality of the blades, and / or, the target component is connected to the windward surface of the blades and the reinforcing component, or, the target component is connected to the leeward surface of the blades and the reinforcing component; the reinforcing component of the heat dissipation device is connected to a first position of the second part, and the target component is connected to a second position of the second part; the first position and the second position are different positions of the second part and are arranged in a direction close to and away from the center of the heat dissipation device; the target component has a guide surface, the guide surface facing the airflow gap between the adjacent two blades, the guide surface being not perpendicular to the axis of the heat dissipation device; wherein, during the rotation of the blades, the guide surface rotates along the axis of the rotor component of the heat dissipation device, driving the fluid in the airflow gap to flow in the axial direction of the heat dissipation device, so that the fluid flows away from the target component; the blades have a first edge and a second edge, the arrangement direction of the first edge and the second edge being the axial direction of the heat dissipation device; the reinforcing component is connected to the first edge of the blades, the reinforcing component is connected to the second edge of the blades, or the reinforcing component is connected to an intermediate position of the blades, the intermediate position being between the first edge and the second edge; wherein the heat dissipation device satisfies at least one of the following conditions: The second surface is a surface of the reinforcing member facing the center of the heat dissipation device, and the target component is connected to the part of the fan blade located between the reinforcing member and the center of the heat dissipation device and the second surface, or The second surface is a surface of the reinforcing member facing away from the center of the heat dissipation device, and the target component is connected to the part of the fan blade located away from the center of the heat dissipation device and the second surface, or The second surface includes a first sub-surface of the reinforcing member facing the center of the heat dissipation device and a second sub-surface of the reinforcing member facing away from the center of the heat dissipation device, and the target component includes a first reinforcing member and a second reinforcing member, the first reinforcing member is connected to the part of the fan blade located between the reinforcing member and the center of the heat dissipation device and the first sub-surface, and the second reinforcing member is connected to the part of the fan blade located away from the center of the heat dissipation device and the second sub-surface; The first surface of the heat dissipation device is connected to the fan blade, and the connection position of the first surface and the fan blade is provided with a rounded structure, and the target component is connected to the rounded structure; The heat dissipation device has a first side and a second side arranged in the axial direction of the heat dissipation device and opposite to each other, and a target position is perpendicular to the axial direction of the heat dissipation device in the arrangement 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; The relationship between the target component and the fan blade satisfies at least one of the following conditions: The target component is connected to the position of the fan blade close to the first side, and in the process of rotation of the fan blade, the airflow can be driven to flow to 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, and in the process of rotation of the fan blade, the airflow can be driven to flow to the third side of the target position; The heat dissipation device further comprises a rotor component, and the rotor component can rotate along its axis; The relationship between the fan blade and the rotor component satisfies at least one of the following conditions: A plurality of fan blades are arranged in the circumferential direction of the rotor component, or A plurality of fan blades include a first fan blade and a second fan blade, the first fan blade is connected to the rotor component and the reinforcing member, and the second fan blade is connected to the reinforcing member.

3. An electronic device, comprising: A heat dissipation device for dissipating heat of a heat generating component; The heat dissipation device comprises: A plurality of fan blades; A reinforcing member having a first surface and a second surface, the first surface and the second surface are adjacent, and the first surface faces the fan blade; A target component, 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 to the second end in a first direction to form the target component, at least a part of the first direction is arranged at a target angle with a target direction, the target direction is an arrangement direction of the first surface and the fan blade, and the target angle is not 0°.

4. The electronic device of claim 3, wherein, At least a part of the first direction is a curve, The bending direction of the curve satisfies at least one of the following conditions: The bending direction of the curve is away from the fan blade, The bending direction of the curve is toward the fan blade, and the first end is connected with the edge of the fan blade toward the reinforcing component; In the adjacent two fan blades of the heat dissipation device, the second end of the target component connected with one fan blade has a spacing with the other fan blade, 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 with the second part; Wherein, the heat dissipation device further comprises at least one of the following conditions: The thickness of the first part is smaller than the thickness of the second part, and the thickness direction is the axis direction of the heat dissipation device, And / or, the second part is recessed away from the windward surface of the fan blade, and the first part is protruded toward the windward surface of the fan blade, And / or, the first surface is connected with the second part of the plurality of fan blades, And / or, the target component is connected with the windward surface of the fan blade and the reinforcing component, Or, the target component is connected with the leeward surface of the fan blade and the reinforcing component; The reinforcing component of the heat dissipation device is connected with the first position of the second part, and the target component is connected with the second position of the second part; The first position and the second position are different positions of the second part and are arranged in a direction close to and away from the center of the heat dissipation device; The target component has a guide surface, the guide surface is toward the air flow gap between the adjacent two fan blades, and the guide surface is not perpendicular to the axis of the heat dissipation device; Wherein, in the process of rotation of the fan blade, the guide surface rotates along the axis of the rotor component of the heat dissipation device, drives the fluid in the air flow gap to flow in the axis direction of the heat dissipation device, so that the fluid flows away from the target component; 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 axis direction of the heat dissipation device; The reinforcing component is connected with the first edge of the fan blade, the reinforcing component is connected with the second edge of the fan blade, or the reinforcing component is connected with the middle position of the fan blade, and the middle position is between the first edge and the second edge; Wherein, the heat dissipation device satisfies at least one of the following conditions: The second surface is a surface of the reinforcing component toward the center of the heat dissipation device, and the target component is connected with the part of the fan blade between the reinforcing component and the center of the heat dissipation device and the second surface, or The second surface is a surface of the reinforcing component away from the center of the heat dissipation device, and the target component is connected with the part of the fan blade away from the center of the heat dissipation device and the second surface, or The second surface includes a first sub-surface of the reinforcing component facing the center of the heat dissipation device and a second sub-surface of the reinforcing component facing away from the center of the heat dissipation device, the target component includes a first reinforcing member and a second reinforcing member, the first reinforcing member and the part of the reinforcing component connecting the fan blade located between the reinforcing component and the center of the heat dissipation device and the first sub-surface, the second reinforcing member and the part of the reinforcing component connecting the fan blade located away from the center of the heat dissipation device and the second sub-surface; The first surface of the heat dissipation device is connected with the fan blade, and a rounded structure is arranged at the connection position of the first surface and the fan blade, and the target component is connected with the rounded structure; The heat dissipation device has a first side and a second side arranged in the axial direction of the heat dissipation device and facing away from each other, and a target position is perpendicular to the axial direction of the heat dissipation device in the arrangement direction of the heat dissipation device, the target position has a third side corresponding to the first side and a fourth side corresponding to the second side; The relationship between the target component and the fan blade satisfies at least one of the following conditions: The target component is connected to the position of the fan blade close to the first side, and in the process of rotation of the fan blade, the airflow can be driven to flow to the area facing 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, and in the process of rotation of the fan blade, the airflow can be driven to flow to the third side of the target position; The heat dissipation device further comprises a rotor component, and the rotor component can rotate along its axis; The relationship between the fan blade and the rotor component satisfies at least one of the following conditions: A plurality of fan blades are arranged in the circumferential direction of the rotor component, or A plurality of fan blades include a first fan blade and a second fan blade, the first fan blade is connected to the rotor component and the reinforcing component, and the second fan blade is connected to the reinforcing component.

5. The electronic device of claim 4, wherein The target component is connected to the position of the fan blade close to the first side, and in the process of rotation of the fan blade, the airflow can be driven to flow to the area facing 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, and in the process of rotation of the fan blade, the airflow can be driven to flow to the third side of the target position, and the heat generating component is located on the third side of the target position.

Images