Heat dissipation assembly

Abstract

The invention discloses a heat dissipation assembly, and belongs to the technical field of heat dissipation equipment, the heat dissipation assembly comprises a base, a supporting shaft and a fan blade assembly, the base is used for making contact with a heat source, and the supporting shaft is connected with the base. The fan blade assembly comprises a shaft sleeve and a plurality of blades, the supporting shaft is sleeved with the shaft sleeve, one side of each blade is connected with the shaft sleeve, and under the condition that voltage is applied to the two sides of each blade, the side, close to the supporting shaft, of each blade is a cold end, and the side, away from the supporting shaft, of each blade is a hot end.

Description

Technical Field

[0001] The present application belongs to the technical field of heat dissipation equipment, and specifically relates to a heat dissipation component. Background Art

[0002] In electronic devices, heat is generated when the heat source is working. In order to ensure the working stability of the heat source, the heat needs to be dissipated.

[0003] In the related art, a radiator is usually used to dissipate the heat from a heat source, and the heat generated by the heat source is dissipated into the air through the radiator.

[0004] At present, as the power of the heat source gradually increases, the heat dissipation effect of the heat source in the related technology is limited, so a heat dissipation structure that can improve the heat dissipation effect is needed. Summary of the invention

[0005] The present application aims to provide a heat dissipation component, which at least solves the problem of limited heat dissipation effect of the heat dissipation structure of the heat source in the related art.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] The present application embodiment provides a heat dissipation component, including:

[0008] A base, the base is used to contact with a heat source;

[0009] A support shaft connected to the base;

[0010] The fan blade assembly includes a shaft sleeve and a plurality of blades. The shaft sleeve is sleeved on the support shaft. One side of the blade is connected to the shaft sleeve. When voltage is applied on both sides of the blade, the side of the blade close to the support shaft is the cold end, and the side away from the support shaft is the hot end.

[0011] In the embodiment of the present application, when the heat source generates heat, the heat of the heat source is sequentially transferred to the support shaft through the base, and the sleeve is sleeved on the support shaft, so the heat on the support shaft is transferred to the sleeve. When both sides of the blade are energized, one side of the blade will generate heat, and the other side of the blade will cool. The cold end of the blade is in contact with the sleeve, and there is a large temperature difference between the blade and the sleeve, which is conducive to improving the heat exchange speed between the blade and the sleeve, thereby improving the efficiency of heat transfer to the outside. In the case of the above heat dissipation method, the heat source temperature can be effectively avoided from being too high, which is conducive to improving the working stability of the heat source.

[0012] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0014] Figure 1 is one of the structural schematic diagrams of the heat dissipation assembly according to an embodiment of the present application;

[0015] Figure 2 This is a second structural schematic diagram of a heat dissipation assembly according to an embodiment of the present application;

[0016] Figure 3 This is one of the structural schematic diagrams of the heat sink and the support shaft according to an embodiment of the present application;

[0017] Figure 4 This is a second structural schematic diagram of a heat spreader and a support shaft according to an embodiment of the present application;

[0018] Figure 5 This is a third structural schematic diagram of a heat dissipation assembly according to an embodiment of the present application;

[0019] Figure 6 is one of the structural schematic diagrams of the fan blade assembly according to an embodiment of the present application;

[0020] Figure 7 This is a second structural schematic diagram of a fan blade assembly according to an embodiment of the present application;

[0021] Figure 8 is one of the structural schematic diagrams of the housing according to an embodiment of the present application;

[0022] Fig. 9 This is a second structural schematic diagram of a housing according to an embodiment of the present application;

[0023] Fig.10 is a schematic structural diagram of a fan blade assembly and an electromagnetic drive assembly according to an embodiment of the present application;

[0024] Fig.11 is a schematic structural diagram of a coil and a driving board according to an embodiment of the present application;

[0025] Fig.12 is a schematic structural diagram of a shaft sleeve and a blade according to an embodiment of the present application;

[0026] Fig.13 is a schematic structural diagram of a housing and a coil according to an embodiment of the present application;

[0027] Fig.14 is a schematic structural diagram of a magnetic member, a conductive ring and a fan blade assembly according to an embodiment of the present application;

[0028] Fig.15 is a schematic structural diagram of a fan blade assembly, a magnetic component, and a conductive ring according to an embodiment of the present application;

[0029] Fig.16 This is a fourth structural schematic diagram of a heat dissipation assembly according to an embodiment of the present application;

[0030] Fig.17 is a fifth structural schematic diagram of a heat dissipation assembly according to an embodiment of the present application;

[0031] Fig.18 Shows Fig.17 The enlarged view of point A in the middle;

[0032] Fig.19 is a sixth structural schematic diagram of a heat dissipation assembly according to an embodiment of the present application;

[0033] Fig. 20 is the seventh structural schematic diagram of the heat dissipation assembly according to the embodiment of the present application;

[0034] Fig.21 This is an eighth structural schematic diagram of a heat dissipation assembly according to an embodiment of the present application;

[0035] Fig. 22 It is a schematic diagram of the structure of a blade according to an embodiment of the present application.

[0036] Reference numerals:

[0037] 100 heat dissipation component, 110 base, 111 first cavity, 112 first part, 113 second part, 114 heat spreader, 120 support shaft, 121 second cavity, 130 fan blade component, 131 shaft sleeve, 132 blade, 1231 hot end, 1232 cold end, 1323 blade body, 1324 semiconductor refrigeration film, 133 shaft hole, 140 shell, 141 top plate, 142 air inlet, 143 mounting plate, 144 connecting ribs, 145 air outlet, 146 side plate, 150 electromagnetic drive component, 151 magnetic part, 152 coil, 153 drive plate, 160 radiator, 170 conductive contact, 180 brush, 190 conductive ring, 200 heat source, 300 conductive component. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0039] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0040] In the description of this application, it should be noted that, 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] Combine the following Figure 1-Figure 22 A heat dissipation assembly according to an embodiment of the present application is described.

[0042] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig.16 , Fig.17 and Fig.18 As shown, according to some embodiments of the present application, the heat dissipation assembly 100 includes: a base 110, a support shaft 120 and a fan blade assembly 130, the base 110 is used to contact the heat source 200, and the support shaft 120 is connected to the base 110. The fan blade assembly 130 includes a sleeve 131 and a plurality of blades 132, the sleeve 131 is sleeved on the support shaft 120, one side of the blade 132 is connected to the sleeve 131, and when a voltage is applied to both sides of the blade 132, the side of the blade 132 close to the support shaft 120 is a cold end, and the side of the blade 132 away from the support shaft 120 is a hot end.

[0043] The plurality of blades 132 are connected to the shaft sleeve 131 at the same time. When the shaft sleeve 131 rotates, the shaft sleeve 131 drives the plurality of blades 132 to rotate synchronously. Fig.12 As shown, the shaft sleeve 131 is provided with a shaft hole 133 , and the support shaft 120 can be inserted into the shaft hole 133 . The support shaft 120 supports the shaft sleeve 131 to ensure that the fan blade assembly 130 can stably rotate on the base 110 .

[0044] When the heat source 200 generates heat, the heat of the heat source is transferred to the support shaft 120 through the base 110 in turn. The sleeve 131 is sleeved on the support shaft 120, so the heat on the support shaft 120 is transferred to the sleeve 131. When both sides of the blade 132 are energized, the side of the blade 132 close to the support shaft 120 is the cold end, and the side of the blade 132 away from the support shaft 120 is the hot end. The cold end 1232 of the blade 132 is in contact with the sleeve 131, and there is a large temperature difference between the blade 132 and the sleeve 131, which is conducive to improving the heat exchange speed between the blade 132 and the sleeve 131, thereby improving the efficiency of heat transfer to the outside. In the case of the above heat dissipation method, the temperature of the heat source 200 can be effectively avoided from being too high, which is conducive to improving the working stability of the heat source 200.

[0045] like Fig. 22 As shown, in some embodiments, optionally, the blade 132 includes: a blade body 1323 and a semiconductor refrigeration film 1324, and the blade body 1323 is connected to the shaft sleeve 131. The semiconductor refrigeration film 1324 is attached to the blade body 1323, and when voltage is applied to both sides of the semiconductor refrigeration film 1324, the side of the semiconductor refrigeration film 1324 close to the support shaft 120 is the cold end, and the side of the semiconductor refrigeration film 1324 away from the support shaft 120 is the hot end.

[0046] The blade 132 may be a film-like TEC (Thermoelectric cooler), which has the characteristic that when power is supplied to both ends, one end will generate heat and the other end will cool. In this embodiment, voltage is applied to both sides of the semiconductor cooling film 1324, and all blades 132 are cooled near the sleeve 131, thereby achieving efficient heat dissipation of the sleeve 131.

[0047] Combination Figure 3 , Figure 4 , Fig.16 and Fig.17 As shown, in some embodiments, optionally, the heat dissipation assembly 100 further includes: a housing 140 and a conductive assembly 300, the housing 140 is connected to the base 110, and the fan blade assembly 130 is located in the housing 140. The conductive assembly 300 is arranged on the housing 140 and the support shaft 120, one side of the fan blade assembly 130 is in rolling contact with a portion of the conductive assembly 300 on the support shaft 120, and the other side of the fan blade assembly 130 is in rolling contact with a portion of the conductive assembly 300 on the housing 140.

[0048] During the rotation of the fan blade assembly 130 , both sides of the fan blade assembly 130 are in rolling contact with the conductive assembly 300 , and no electrical connection wire is required between the fan blade assembly 130 and the conductive assembly 300 , thereby avoiding interference with the rotation of the fan blade assembly 130 .

[0049] Combination Figure 3 , Figure 4 , Fig.16 and Fig.17 As shown, in some embodiments, optionally, the fan blade assembly 130 further includes a conductive ring 190, and the conductive ring 190 is connected to the blade 132. The conductive assembly 300 includes a conductive contact 170 and a brush 180, the conductive contact 170 is provided on the support shaft 120, the conductive contact 170 is electrically connected to the shaft sleeve 131, and the plurality of blades 132 are electrically connected to the shaft sleeve 131. The brush 180 is provided on the housing 140, and when the fan blade assembly 130 rotates, the conductive ring 190 and the brush 180 are in rolling contact.

[0050] A conductive contact 170 is provided on the support shaft 120 . Since the sleeve 131 is sleeved on the support shaft 120 and in contact with the support shaft 120 , the sleeve 131 can stably contact with the conductive contact 170 , and the blade 132 is electrically connected with the conductive contact 170 through the sleeve 131 .

[0051] The plurality of blades 132 are connected to the conductive ring 190 at the same time. A brush 180 is fixed on the housing 140. The conductive ring 190 contacts the brush 180. The blades 132 are electrically connected to the brush 180 through the conductive ring 190. The conductive ring 190 contacts the tips of all blades 132 and achieves electrical conduction. Since the conductive ring 190 is connected to the plurality of blades 132 at the same time, only one brush 180 can be provided on the housing 140 to achieve the effect of electrically connecting the plurality of blades 132 to the brush 180 at the same time, ensuring that the hot end 1231 and the cold end 1232 are formed on the plurality of blades 132 at the same time. The plurality of blades 132 simultaneously perform efficient heat exchange with the shaft sleeve 131, further improving the heat dissipation effect of the heat source 200.

[0052] The conductive ring 190 is an annular structure. When the annular conductive ring 190 contacts the brush 180 , since the portion of the conductive ring 190 that contacts the brush 180 is arc-shaped, the brush 180 is not likely to interfere with the rotation process of the conductive ring 190 , thereby ensuring the rotation stability of the fan blade assembly 130 .

[0053] When the conductive ring 190 rotates, each part of the conductive ring 190 passes through the brush 180 in sequence, thereby ensuring that the conductive ring 190 is always in contact with the brush 180 , which is beneficial to improving the conductive stability of the conductive ring 190 and the brush 180 .

[0054] Combination Figure 1 and Fig.10 As shown, in some embodiments, optionally, the heat dissipation assembly 100 also includes: an electromagnetic drive assembly 150, a portion of the electromagnetic drive assembly 150 is disposed on the shell 140, and another portion is disposed on the sleeve 131, and the electromagnetic drive assembly 150 is used to drive the fan blade assembly 130 to rotate.

[0055] The shell 140 is buckled onto the base 110 , and the fan blade assembly 130 is located inside the shell 140 . The shell 140 protects the fan blade assembly 130 and prevents the fan blade assembly 130 from contacting other components.

[0056] An electromagnetic drive assembly 150 is installed on the shell 140 and the sleeve 131. The fan blade assembly 130 is driven to rotate by electromagnetic drive. There is no need to set a conductive connection line between the fan blade assembly 130 and the shell 140, and there is no need to consider the problem that the connection line will interfere with the rotation of the fan blade assembly 130, thereby reducing the processing difficulty of the heat dissipation assembly 100.

[0057] Combination Figure 1 , Figure 5 , Fig.10 , Fig.11 , Fig.13 , Fig.14 and Fig.15 As shown, in some embodiments, optionally, the electromagnetic drive assembly 150 includes: a magnetic member 151 and a plurality of coils 152, the magnetic member 151 is connected to the sleeve 131, the plurality of coils 152 are arranged on the housing 140, and the plurality of coils 152 are arranged along the circumference of the support shaft 120 ( Figure 3 As shown in the figure, as pointed by the arrow at C in the figure, the support shaft 120 extends into the area surrounded by multiple coils 152.

[0058] The magnetic part 151 is installed on the sleeve 131, and the magnetic part 151 is concentrically arranged with the sleeve 131. The coil 152 is installed on the shell 140. When the coil 152 is energized, the energized coil 152 will generate a magnetic field. The magnetic field generated by the coil 152 interacts with the magnetic field of the magnetic part 151, thereby generating a driving force for the magnetic part 151. The magnetic part 151 can drive the sleeve 131 to rotate, thereby realizing the driving of the fan blade assembly 130.

[0059] A portion of the support shaft 120 extends out of the sleeve 131. In this embodiment, a plurality of coils 152 are distributed along the circumference of the sleeve 131. The plurality of coils 152 enclose an avoidance area. The avoidance area can avoid the support shaft 120, so that the end of the support shaft 120 can extend into the avoidance area. The coil 152 and the support shaft 120 jointly occupy a portion of the axial space. In this case, the axial length of the heat dissipation assembly 100 can be reduced, thereby reducing the volume of the heat dissipation assembly 100.

[0060] The magnetic member 151 in this embodiment is a magnet, which is coaxially fixed to the shaft sleeve 131 and functions to cooperate with the coil 152 to drive the fan blade assembly 130 to rotate under the action of electromagnetic force.

[0061] Combination Figure 8 , Fig. 9 and Fig.13As shown, in some embodiments, optionally, the shell 140 includes: a top plate 141, a mounting plate 143 and connecting ribs 144, the top plate 141 is provided with an air inlet 142, the air inlet 142 is connected to the interior of the shell 140, a part of the electromagnetic drive assembly 150 is provided on the mounting plate 143, and the connecting ribs 144 are connected to the mounting plate 143 and the top plate 141.

[0062] An air inlet 142 is provided on the top plate 141. When the fan assembly 130 rotates, external air can flow into the housing 140 through the air inlet 142. A mounting plate 143 is provided in the air inlet 142. The mounting plate 143 is fixed to the top plate 141 through a connecting rib 144. The coil 152 can be mounted on the mounting plate 143. The connecting rib 144 and the mounting plate 143 only occupy a part of the space in the air inlet 142, ensuring that the air flow can flow into the housing 140 stably.

[0063] In one possible application, the width of the connecting rib 144 is smaller than the width of the mounting plate 143 , which can reduce the space occupied by the connecting rib 144 in the air inlet 142 , increase the opening area of ​​the air inlet 142 , and ensure smooth flow of air into the shell 140 .

[0064] In a possible application, the electromagnetic drive assembly 150 further includes a drive plate 153, on which a coil 152 is mounted, and the coil 152 is mounted on the drive plate 153, and the drive plate 153 is attached to the inner surface of the mounting plate 143. The housing 140 and the base 110 are assembled by bonding, snapping, welding, etc.

[0065] The housing 140 and the driving plate 153 are connected by a combination of double-sided adhesive, glue spots, etc. The housing 140 mainly forms the air inlet and outlet channels and supports the driving plate 153. It can be made of metal, plastic or a combination of the two. One or more brushes 180 are arranged inside the housing 140. The brushes 180 are fixed on the side wall of the housing 140. After assembly, the brushes 180 contact the conductive ring 190 to form electrical conduction, and do not interfere with the normal rotation of the blades 132.

[0066] In a possible application, the housing 140 further includes a side plate 146 , which is disposed between the top plate 141 and the base 110 .

[0067] Combination Fig.16 , Fig.17 and Fig.18 As shown, in some embodiments, optionally, from the side of the blade 132 close to the support shaft 120 to the side of the blade 132 away from the support shaft 120, the blade 132 moves in the first direction ( Fig.17 The arrow at C1 in the figure points to the direction of the curve, and the curve is bent along the second direction ( Fig.17As shown in the figure, as indicated by the arrow at C2, the distance between the blade 132 and the inner wall of the housing 140 on the side away from the support shaft 120 gradually increases, and the first direction and the second direction are opposite directions.

[0068] Among the multiple blades 132 , any blade 132 is in a curved shape, and the rotation direction of the blade 132 is opposite to the bending direction of the blade 132 , which is beneficial to increasing the resistance encountered by the blade 132 when rotating.

[0069] During the rotation of multiple blades 132, the blades 132 will drive the airflow in the opposite direction of their own bending direction. Along the rotation direction of the fan blade assembly 130, the distance between the blades 132 and the inner wall of the shell 140 increases, that is, along the flow direction of the airflow, the distance between the blades 132 and the inner wall of the shell 140 gradually increases, so that the airflow can flow smoothly between the blades 132 and the shell 140, and the shell 140 is not easy to hinder the flow of the airflow, ensuring that the airflow can flow out of the shell 140 quickly and stably, thereby helping to improve the heat dissipation effect of the heat source 200.

[0070] like Figure 4 As shown, in some embodiments, optionally, the base 110 is a heat spreader 114 , and a first cavity 111 is disposed in the heat spreader 114 .

[0071] The first cavity 111 inside the heat spreader 114 is a vacuum cavity. When the bottom of the heat spreader 114 is heated, the liquid in the heat spreader 114 evaporates into steam after being heated. The steam expands rapidly due to the absorption of heat, and flows from the high-pressure area to the low-pressure area (the second cavity 121). The steam quickly diffuses to the low-temperature area. After the steam contacts the low-temperature area, the steam temperature decreases and condenses into liquid, condensing and releasing heat. After the heat spreader 114 absorbs the heat, the heat spreader 114 continuously transfers the heat to the top surface of the bottom plate and the support shaft 120 through the phase change and circulation of the liquid. When the fan blade assembly 130 rotates, the fan blade assembly 130 dissipates heat to the heat spreader 114 and the support shaft 120, thereby cooling the heat spreader 114 and the support shaft 120. Through the above method, the heat of the heat source 200 can be efficiently transferred to the heat spreader 114 and the support shaft 120, thereby achieving efficient heat dissipation of the heat source 200. Moreover, the heat spreader 114 and the support shaft 120 can dissipate heat at the same time, which increases the heat dissipation area and thus improves the efficiency of heat transfer to the outside. Under the above heat dissipation method, the temperature of the heat source 200 can be effectively prevented from being too high, which is beneficial to improving the working stability of the heat source 200.

[0072] In some embodiments, optionally, a second cavity 121 is provided in the support shaft 120 , and the second cavity 121 is communicated with the first cavity 111 .

[0073] The support shaft 120 and the heat spreader are both hollow structures, a first cavity 111 is provided in the heat spreader 114, a second cavity 121 is provided in the support shaft 120, and the first cavity 111 is connected to the second cavity 121. The heat spreader 114 continuously transfers heat to the top surface of the bottom plate and the support shaft 120 through phase change and circulation of the liquid, and the heat of the heat source 200 can be efficiently transferred to the heat spreader 114 and the support shaft 120, thereby achieving efficient heat dissipation of the heat source 200.

[0074] In a possible application, the support column in this embodiment is a section of heat pipe, and the support column and the heat spreader 114 are interconnected to form a closed inner cavity, forming a 3D heat spreader assembly, and the bottom surface of the heat spreader 114 is in contact with the heat source 200.

[0075] Exemplarily, the heat source 200 may be a heat source such as a central processing unit, a graphics processing unit, or a micro control unit.

[0076] Combination Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, optionally, the second cavity 121 is arranged along the axial direction of the support shaft 120 ( Figure 5 The arrow at H in the middle points to the direction of the axis), the length of the second cavity 121 is L1, the axial length of the sleeve 131 is L2, and L1≥0.5×L2.

[0077] The longer the length of the second cavity 121 along the axial direction is, the larger the area of ​​the portion corresponding to the second cavity 121 and the sleeve 131 is, which is beneficial to improving the heat exchange rate between the second cavity 121 and the sleeve 131 when the second cavity 121 is filled with steam. In this embodiment, it is defined that along the axial direction of the support shaft 120, the length of the second cavity 121 is L1, and the length of the sleeve 131 is L2. When L1 and L2 satisfy L1≥0.5×L2, the length of the first cavity 111 is at least half of the length of the sleeve 131, and the area of ​​the portion corresponding to the second cavity 121 and the sleeve 131 is large, and the heat in the second cavity 121 can be quickly transferred to the sleeve 131, which is beneficial to improving the heat dissipation rate.

[0078] Illustratively, L1=0.5×L2, L1=0.8×L2, or L1=L2.

[0079] like Figure 5 As shown, in some embodiments, optionally, one end of the support shaft 120 is connected to the base 110 , and the other end of the support shaft 120 extends out of the shaft sleeve 131 .

[0080] A portion of the support shaft 120 extends out of the sleeve 131, that is, along the axial direction of the sleeve 131, the length of the support shaft 120 is greater than the length of the sleeve 131. Therefore, in the axial direction of the sleeve 131, the support shaft 120 and the sleeve 131 have a larger contact area, which is beneficial to improving the supporting effect of the support shaft 120 on the sleeve 131.

[0081] When the length of the support shaft 120 is greater than that of the sleeve 131, the support shaft 120 provides more setting space for the second cavity 121, which can increase the axial length of the second cavity 121 as much as possible, and further increase the area of ​​the corresponding part of the second cavity 121 and the sleeve 131, which is beneficial to improve the heat dissipation speed.

[0082] In a possible application, a second cavity 121 is provided on a portion of the support shaft 120 located within the sleeve 131, while a second cavity 121 is not provided on a portion of the support shaft 120 extending out of the sleeve 131, which can ensure both the heat dissipation effect and the structural stability of the support shaft 120.

[0083] Combination Fig.19 , Fig. 20 and Fig.21 As shown, in some embodiments, optionally, the heat dissipation assembly 100 further includes: a radiator 160 , the radiator 160 is connected to the base 110 , an air outlet 145 is provided on the heat dissipation assembly 100 , and the radiator 160 and the air outlet 145 are arranged opposite to each other.

[0084] A radiator 160 is installed on the base 110. When the heat source 200 exchanges heat with the base 110, a portion of the heat on the base 110 is taken away by the fan blade assembly 130, and another portion of the heat on the base 110 is taken away by the radiator 160. The fan blade assembly 130 and the radiator 160 can dissipate heat for the base 110 at the same time, which is beneficial to improving the heat dissipation effect of the base 110, and further can improve the heat dissipation speed.

[0085] Combination Figure 1 , Fig.19 , Fig. 20 and Fig.21 As shown, in some embodiments, optionally, a portion of the base 110 extends out of the air outlet 145 , and the base 110 is used to support the radiator 160 .

[0086] In this embodiment, one side of the base 110 is lengthened so that a portion of the base 110 extends out of the air outlet 145. The radiator 160 is installed on the base 110. The base 110 supports the radiator 160. The base 110 and the radiator 160 have a large contact area, which is beneficial to improving the heat exchange speed between the base 110 and the radiator 160, thereby improving the heat dissipation speed of the base 110.

[0087] In some embodiments, optionally, the first portion 112 of the base 110 is opposite to the heat dissipation assembly 100 , and the heat sink 160 is disposed on the second portion 113 of the base 110 , and the second portion 113 is used to contact the heat source 200 .

[0088] A portion of the base 110 extends out of the air outlet 145, so that a portion of the base 110 supports the fan blade assembly 130, wherein the first portion 112 of the base 110 is opposite to the fan blade assembly 130, so that the fan blade assembly 130 can dissipate heat for the first portion 112 of the base 110. The second portion 113 of the base 110 is opposite to the radiator 160, so that the radiator 160 can dissipate heat for the second portion 113 of the base 110.

[0089] The first part 112 and the second part 113 are both hollow structures, that is, the first part 112 and the second part 113 are both provided with a first cavity 111, so that the first part 112 and the second part 113 are both filled with liquid, thereby improving the heat dissipation effect of the first part 112 and the second part 113, which is beneficial to improving the heat dissipation speed of the base 110, thereby improving the cooling speed of the heat source 200.

[0090] In the embodiment of the present invention, the heat sink 160 is integrated with the base 110 in the heat dissipation assembly 100, the blades 132 in the fan blade assembly 130 are used as fins of the heat sink 160, and a film-like TEC material is introduced as the blades 132, and the Peltier effect is used to improve the heat dissipation effect of the system. The main improvements of the present invention are:

[0091] First, the heat sink 160 and the base 110 are integrated into one body, which has a compact structure, occupies a small space and is light in weight.

[0092] Second, when the membrane-shaped TEC blade 132 is powered on and working, the Peltier effect is utilized to improve the heat dissipation effect.

[0093] In an embodiment of the present invention, the heat dissipation assembly 100 has two working modes. In the first working mode, the sleeve 131 and the brush 180 do not apply voltage to the blade 132, that is, the membrane TEC does not work. At this time, the main heat transfer paths are: heat source 200, base 110, and air. The heat of the heat source 200 is directly transferred to the base 110 and the support shaft 120. When the fan blade assembly 130 rotates, the heat of the base 110 and the support shaft 120 is continuously exchanged with the air to achieve heat dissipation.

[0094] When there is a stronger demand for heat dissipation, the second working mode is activated, voltage is applied to both sides of the blade 132, and the membrane TEC starts working. At this time, there are two main heat transfer paths. The first one is heat source 200, base 110, and air. The second one is heat source 200, base 110, sleeve 131, blade 132, and air. In addition to the heat transfer path of the first working mode, as the membrane TEC starts working, the root of the blade 132 begins to cool, directly cooling the support shaft 120, and the tip temperature of the blade 132 increases, which is equivalent to transferring the heat of the support shaft 120 to the tip of the blade 132. Since the tip speed of the blade 132 is very high, the heat exchange efficiency with the air is improved. At the same time, due to the large number of blades 132, the heat dissipation efficiency is greatly improved.

[0095] On the basis of the above two working modes, the base 110 can be extended in the blowing direction, and a radiator 160 can be set on the extended base 110. The radiator 160 and the base 110 are connected by welding, bonding with thermal conductive materials, etc., so as to form a third heat dissipation path: heat source 200, base 110, radiator 160, and air.

[0096] In an embodiment of the present application, an electronic device is proposed, including the heat dissipation component in any of the above embodiments. The electronic device in this embodiment can achieve the technical effect of the heat dissipation component in any of the above embodiments, which will not be repeated here.

[0097] Exemplarily, the electronic device may be a mobile phone, a tablet computer, a laptop computer, a desktop computer, a smart wearable device, etc.

[0098] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0099] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heat dissipation component, characterized in that: include: A base, the base being used to contact with a heat source; A support shaft connected to the base; A fan blade assembly, the fan blade assembly includes a shaft sleeve and a plurality of blades, the shaft sleeve is sleeved on the support shaft, one side of the blade is connected to the shaft sleeve, when voltage is applied on both sides of the blade, the side of the blade close to the support shaft is the cold end, and the side away from the support shaft is the hot end.

2. The heat dissipation assembly according to claim 1, characterized in that: The blade comprises: A blade body, wherein the blade body is connected to the shaft sleeve; The semiconductor refrigeration film is attached to the blade body. When voltage is applied to both sides of the semiconductor refrigeration film, the side of the semiconductor refrigeration film close to the support shaft is the cold end, and the side away from the support shaft is the hot end.

3. The heat dissipation assembly according to claim 1, characterized in that: The heat dissipation component also includes: A shell connected to the base, wherein the fan blade assembly is located in the shell; A conductive component is arranged on the shell and the support shaft, one side of the fan blade component is in rolling contact with a portion of the conductive component on the support shaft, and the other side of the fan blade component is in rolling contact with a portion of the conductive component on the shell.

4. The heat dissipation assembly according to claim 3, characterized in that: The fan blade assembly also includes a conductive ring, which is connected to the plurality of blades; The conductive component comprises: A conductive contact is provided on the support shaft, the conductive contact is electrically connected to the sleeve, and the plurality of blades are electrically connected to the sleeve; A brush is arranged on the housing, and when the fan blade assembly rotates, the conductive ring and the brush are in rolling contact.

5. The heat dissipation assembly according to claim 3, characterized in that: The heat dissipation component also includes: An electromagnetic drive assembly, a part of which is arranged on the shell, and another part of which is arranged on the shaft sleeve, and the electromagnetic drive assembly is used to drive the fan blade assembly to rotate.

6. The heat dissipation assembly according to claim 5, characterized in that: The electromagnetic drive assembly comprises: A magnetic member connected to the shaft sleeve; A plurality of coils are arranged on the shell, the plurality of coils are distributed along the circumference of the support shaft, and the support shaft extends into the area surrounded by the plurality of coils.

7. The heat dissipation assembly according to claim 6, characterized in that: The housing comprises: A top plate, wherein an air inlet is provided on the top plate, and the air inlet is connected to the interior of the shell; A mounting plate, the coil is arranged on the mounting plate; A connecting rib is connected to the mounting plate and the top plate.

8. The heat dissipation assembly according to claim 3, characterized in that: From the side of the blade close to the support shaft to the side of the blade away from the support shaft, the blade bends in a first direction, and along a second direction, the distance between the side of the blade away from the support shaft and the inner wall of the shell gradually increases, and the first direction and the second direction are opposite directions.

9. The heat dissipation assembly according to claim 1, characterized in that: The base is a heat spreader, and a first cavity is arranged in the heat spreader.

10. The heat dissipation assembly according to claim 9, characterized in that: A second cavity is provided in the support shaft, and the second cavity is communicated with the first cavity.

11. The heat dissipation assembly according to claim 1, characterized in that: One end of the support shaft is connected to the base, and the other end of the support shaft extends out of the shaft sleeve.

12. The heat dissipation assembly according to any one of claims 1 to 11, characterized in that: The heat dissipation component also includes: The radiator is connected to the base, the heat dissipation component is provided with an air outlet, and the radiator is arranged opposite to the air outlet.

13. The heat dissipation assembly according to claim 12, characterized in that: A portion of the base extends out of the air outlet, and the base is used to support the radiator.

14. The heat dissipation assembly according to claim 12, characterized in that: The first part of the base is opposite to the fan blade assembly, and the heat sink is arranged on the second part of the base, and the second part is used to contact the heat source.

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