Radiator, heat dissipation structure and electronic device

Abstract

The present invention discloses a radiator, a heat dissipation structure and an electronic device. The radiator is used to be arranged at the air inlet or the air outlet of a fan. The radiator includes a plurality of heat dissipation fins arranged at intervals. A flow channel is formed between two adjacent heat dissipation fins, and the shapes of the ends of two adjacent heat dissipation fins facing the fan are different. Airflow can enter the flow channel from the air inlet or the air outlet. The airflow exchanges heat with the heat dissipation fins in the flow channel. When the airflow contacts the ends of the heat dissipation fins facing the fan, due to the different shapes of the ends of two adjacent heat dissipation fins facing the fan, there are structural differences between the two adjacent heat dissipation fins. Therefore, when the airflow contacts the ends of two adjacent heat dissipation fins facing the fan respectively, the acting force intensity of the airflow on a single heat dissipation fin can be weakened, the guiding attack angle of the end of the heat dissipation fin facing the fan can be adjusted, and the inflow condition of the end of the heat dissipation fin facing the fan can be improved, so that the noise can be reduced and the user experience can be enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation, and particularly to a radiator, a heat dissipation structure and an electronic device. Background Art

[0002] For consumer electronic products, fans and radiators are usually used to dissipate heat from their heat-generating components. With the continuous improvement of user experience requirements, it is particularly important to not only solve the product heat dissipation problem but also reduce the noise index and improve the sound quality of the product under limited space dimensions.

[0003] The air volume of a fan is proportional to the square of the impeller diameter and linearly related to the impeller speed. Therefore, for a small fan, in order to meet the required heat dissipation air volume, the fan speed is often relatively high. The frequent impact of the high-speed rotating air flow separated from the impeller of the fan on the surrounding solid walls will cause the periodic formation and detachment of air vortices here, triggering discrete noise and affecting the user experience. Summary of the Invention

[0004] Based on this, the present invention aims to overcome the problems existing in the prior art and provides a radiator, a heat dissipation structure and an electronic device that can reduce noise.

[0005] The technical solution is as follows:

[0006] A radiator for being disposed at the air inlet or air outlet of a fan, comprising a plurality of spaced-apart heat dissipation fins. A flow channel is formed between two adjacent heat dissipation fins, and the shapes of the ends of two adjacent heat dissipation fins facing the fan are different.

[0007] For the above radiator, air flow can enter the flow channel from the air inlet or air outlet. The air flow exchanges heat with the heat dissipation fins in the flow channel. When the air flow contacts the ends of the heat dissipation fins facing the fan, since the shapes of the ends of two adjacent heat dissipation fins facing the fan are different, there are structural differences between two adjacent heat dissipation fins. Therefore, when the air flow contacts the ends of two adjacent heat dissipation fins facing the fan respectively, the acting force intensity of the air flow on a single heat dissipation fin can be weakened, the guiding attack angle of the end of the heat dissipation fin facing the fan can be adjusted, and the inflow condition of the end of the heat dissipation fin facing the fan can be improved, thereby reducing noise and enhancing the user experience.

[0008] In one embodiment, the projected parts of the ends of two adjacent heat dissipation fins facing the fan on a projection plane parallel to any one of the heat dissipation fins do not overlap.

[0009] In one embodiment, at least part of the end faces of the ends of two adjacent heat dissipation fins facing the fan are arranged at an included angle, so that the included angles between at least part of the end faces of the ends of two adjacent heat dissipation fins facing the fan and the end face of the fan are different.

[0010] In one embodiment, the end faces of two adjacent heat dissipation fins facing the fan are both flat, and the inclination directions of the end faces of two adjacent heat dissipation fins facing the fan are opposite.

[0011] In one embodiment, at least two adjacent ends of the heat dissipation fins facing the fan are in a toothed structure, the toothed structure includes a plurality of convex tooth portions, and the convex tooth portions of two adjacent heat dissipation fins are arranged staggeredly.

[0012] In one embodiment, the above radiator further includes a first plate and a second plate. The first plate is connected to one side of the heat dissipation fins, the second plate is connected to the other side of the heat dissipation fins. The first plate and the second plate are located on both sides of the flow channel. One end of the first plate close to the air inlet is a first contact end, one end of the second plate close to the air inlet is a second contact end, and the end of the heat dissipation fin facing the fan is located in the docking space formed between the first contact end and the second contact end.

[0013] In one embodiment, the end faces of the first contact end and the second contact end are located on a reference plane, and the vertices of the heat dissipation fins do not exceed the reference plane.

[0014] In one embodiment, the above radiator further includes heat pipes, and the heat pipes sequentially penetrate through a plurality of the heat dissipation fins, and the plurality of heat dissipation fins are arranged in parallel.

[0015] A heat dissipation structure includes a fan and the radiator as described in any one of the above, and the radiator is arranged at the air inlet or the air outlet of the fan.

[0016] In the above heat dissipation structure, air flow can enter the flow channel from the air inlet or the air outlet. The air flow exchanges heat with the heat dissipation fins in the flow channel. When the air flow contacts the end of the heat dissipation fin facing the fan, due to the different shapes of the ends of two adjacent heat dissipation fins facing the fan, there are structural differences between two adjacent heat dissipation fins. Therefore, when the air flow contacts the ends of two adjacent heat dissipation fins facing the fan respectively, the acting force intensity of the air flow on a single heat dissipation fin can be weakened, the flow guiding attack angle of the end of the heat dissipation fin facing the fan can be adjusted, and the inflow condition of the end of the heat dissipation fin facing the fan can be improved, so as to improve the aerodynamic performance of the fan, reduce noise, and enhance the user experience.

[0017] An electronic device includes the heat dissipation structure as described in any one of the above.

[0018] In the above-mentioned electronic device, air flow can enter the flow channel from the air inlet or the air outlet. The air flow exchanges heat with the heat dissipation fins in the flow channel. When the air flow contacts the end of the heat dissipation fin facing the fan, since the shapes of the ends of two adjacent heat dissipation fins facing the fan are different, there are structural differences between the two adjacent heat dissipation fins. Therefore, when the air flow contacts the ends of two adjacent heat dissipation fins facing the fan respectively, the acting force intensity of the air flow on a single heat dissipation fin can be weakened, the flow deflection angle of the end of the heat dissipation fin facing the fan can be adjusted, and the inflow condition of the end of the heat dissipation fin facing the fan can be improved, thereby improving the aerodynamic performance of the fan, reducing noise, and enhancing the user experience. Description of the Drawings

[0019] The drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 Structural schematic diagram of the radiator according to Embodiment 1 of the present invention;

[0022] Figure 2 Structural schematic diagram of the radiator according to Embodiment 2 of the present invention;

[0023] Figure 3 For Figure 1 Side view of

[0024] Figure 4 For Figure 2 Side view of

[0025] Figure 5 Structural schematic diagram of the heat dissipation structure according to the embodiment of the present invention.

[0026] Description of the reference numerals:

[0027] 100, heat dissipation fin; 100a, first fin; 100b, second fin; 101, flow channel; 110, end facing the fan; 110a, first end; 110b, second end; 111, end face; 111a, first end face; 111b, second end face; 120, tooth-like structure; 200, first plate; 300, second plate; 400, heat pipe; 10, fan. Detailed Embodiments

[0028] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0029] As Figures 1 to 5 shown, an embodiment discloses a radiator configured to be disposed at the air inlet or air outlet of a fan 10, including a plurality of spaced-apart heat dissipation fins 100. A flow channel 101 is formed between two adjacent heat dissipation fins 100, and the shapes of the ends 110 of two adjacent heat dissipation fins 100 facing the fan 10 are different.

[0030] Optionally, two adjacent heat dissipation fins 100 are respectively a first heat dissipation fin 100a and a second heat dissipation fin 100b. The end of the first heat dissipation fin 100a facing the fan 10 is a first end 110a, and the end of the second heat dissipation fin 100b facing the fan 10 is a second end 110b, that is, the shapes of the first end 110a and the second end 110b are different. In fact, for the convenience of describing the situation when the air flow contacts the heat dissipation fin 100, the situation where the air flow contacts the first end 110a of the first heat dissipation fin 100a and the second end 110b of the second heat dissipation fin 100b is described, but it does not mean that the air flow only contacts the first end 110a of the first heat dissipation fin 100a and the second end 110b of the second heat dissipation fin 100b.

[0031] Optionally, the end face of the first end 110a is a first end face 111a, and the end face of the second end 110b is a second end face 111b.

[0032] For the above radiator, the air flow can enter the flow channel 101 from the air inlet or air outlet. The air flow exchanges heat with the heat dissipation fin 100 in the flow channel 101. When the air flow contacts the end 110 of the heat dissipation fin 100 facing the fan 10, since the shapes of the ends 110 of two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end 110a and the second end 110b, are different, there are structural differences between two adjacent heat dissipation fins 100, that is, the first heat dissipation fin 100a and the second heat dissipation fin 100b. Therefore, when the air flow contacts the ends 110 of two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end 110a and the second end 110b respectively, the acting force intensity of the air flow on a single heat dissipation fin 100 can be weakened, the flow guiding attack angle of the end 110 of the heat dissipation fin 100 facing the fan 10 can be adjusted, and the inflow condition of the end 110 of the heat dissipation fin 100 facing the fan 10 can be improved, which can reduce noise and enhance the user experience.

[0033] In one embodiment, the projected portions of the end portions 110 of two adjacent heat dissipation fins 100 facing the fan 10 do not overlap on a projection plane parallel to any one of the heat dissipation fins 100. There is a non-overlapping area in the projection on the projection plane parallel to any one of the heat dissipation fins 100 of the end faces 111 of the end portions 110 of two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end face 111a and the second end face 111b, such that the end portions 110 of two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end portion 110a and the second end portion 110b, have different flow guiding attack angles when contacting the air flow.

[0034] Among them, as Figure 3 and Figure 4 shown, on the projection plane parallel to any one of the heat dissipation fins 100, the projections of the end portions 110 of two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end portion 110a and the second end portion 110b, do not completely overlap.

[0035] Optionally, the above radiator is mainly used in cooperation with the fan 10, and the fan 10 guides the air flow to enter the flow channel 101 from the air inlet 101 and discharge from the air outlet.

[0036] Optionally, the heat dissipation fin 100 can be made of a metal material, which has fast heat dissipation, such as copper, aluminum or alloy materials, etc. In other embodiments, the heat dissipation fin 100 can also be made of other materials with good heat dissipation effects, such as graphite or composite materials; or the heat dissipation fin 100 includes a core layer and a coating wrapped outside the core layer, and one of the core layer and the coating is a metal material and the other is graphene, etc.

[0037] In one embodiment, as Figure 1 and Figure 2 shown, at least part of the end faces 111 of the end portions of two adjacent heat dissipation fins 100 facing the fan 10 are arranged at an angle, such that the angles between at least part of the end faces of the end portions of two adjacent heat dissipation fins 100 facing the fan 10 and the end face of the fan 10 are different. When the adjacent end faces 111 arranged at an angle, that is, the first end face 111a and the second end face 111b, contact the air flow, the above end face 111 adjusts the travel of the air flow to the end portion 110 of the heat dissipation fin 100 facing the fan 10 in an inclined manner, changes the time when the air flow impacts different positions of the end portion 110 of the heat dissipation fin 100 on the heat dissipation fin 100 facing the fan 10, and at the same time, due to the different structures of the end portions 110 of two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end portion 110a and the second end portion 110b, the acting force intensity of the air flow on the heat dissipation fin 100 can be weakened. By adjusting the dynamic and static interference pulsation phase and simultaneously reducing the pressure pulsation amplitude at a certain frequency, the purpose of noise reduction is achieved.

[0038] In one embodiment, as Figure 1 and Figure 3 shown, the end faces 111 of the adjacent two heat dissipation fins 100 facing the end 110 of the fan 10, that is, the first end face 111a and the second end face 111b are both flat surfaces, and the inclination directions of the end faces 111 of the adjacent two heat dissipation fins 100 facing the end 110 of the fan 10, that is, the first end face 111a and the second end face 111b are opposite. At this time, the time when the air flow impacts different positions of the end 110 of the adjacent two heat dissipation fins 100 facing the fan 10, that is, the first end 110a and the second end 110b is different, and compared with the traditional structure, the form of the sudden change in the flow area of the air inlet 101 is changed, reducing the velocity gradient of the air flow passing through the air inlet 101, and effectively improving the turbulent noise of the air flow passing through the air inlet 101. The heat dissipation fins 100 with two positive and negative inclination angles are arranged at intervals, which can weaken the acting force intensity of the air flow on the heat dissipation fins 100, and by adjusting the dynamic and static interference pulsation phase, the pressure pulsation amplitude at a certain frequency is reduced at the same time, achieving the purpose of noise reduction.

[0039] In other embodiments, the inclination directions of the end faces 111 of the adjacent two heat dissipation fins 100 facing the fan 10, that is, the first end face 111a and the second end face 111b are the same, but the inclination angles are different. At this time, the partial projections of the end 110 of the adjacent two heat dissipation fins 100 facing the fan 10, that is, the first end 110a and the second end 110b on the projection plane parallel to any heat dissipation fin 100 do not overlap either.

[0040] In other embodiments, one of the end faces 111 of the adjacent two heat dissipation fins 100 facing the fan 10, that is, the first end face 111a and the second end face 111b is perpendicular to the direction of the air flow passing through, and the other is arranged at an angle to the direction of the air flow passing through. At this time, the partial projections of the first end 110a and the second end 110b on the projection plane parallel to any heat dissipation fin 100 do not overlap either.

[0041] Among them, the end face 111 of the end 110 of the heat dissipation fin 100 facing the fan 10 is a flat surface or a curved surface as a whole, which can reduce the manufacturing difficulty and cost. Of course, the end 110 of the heat dissipation fin 100 facing the fan 10 can also be other shapes, such as having a plurality of inclined surfaces with different inclination angles.

[0042] In one embodiment, as Figure 2 and Figure 4As shown, the ends 110 of at least two adjacent heat dissipation fins 100 facing the fan 10 are tooth-like structures 120. The tooth-like structure 120 includes a plurality of convex tooth portions, and the convex tooth portions of two adjacent heat dissipation fins 100 are staggered. The tooth-like structure 120 is equivalent to using multiple inclined edges at the edge of the heat dissipation fin 100, changing the time difference of the action of the air flow on different positions of the end 110 of the heat dissipation fin 100 facing the fan 10. When the air flow is shunted by the tooth-like structure 120, due to the travel difference, the convex tooth portions of the tooth-like structure 120 contact the air flow first and are preferentially shunted. The air flow in the concave tooth area of the tooth-like structure 120 flows to the adjacent heat dissipation fin 100 under the action of rotational inertia. Compared with the original area mutation method, the velocity gradient of the air flow passing through the air inlet 101 is reduced, and the turbulent noise of the air flow passing through the air inlet 101 can be effectively improved.

[0043] Optionally, the projection of the tooth-like structure 120 of one of two adjacent heat dissipation fins 100 on a projection plane parallel to any heat dissipation fin 100 is the first projection, and the projection of the tooth-like structure 120 of the other on a projection plane parallel to any heat dissipation fin 100 is the second projection. The first projection is at least partially located between two adjacent second projections.

[0044] Among them, the shape of the above convex tooth portion can be a triangle, a rectangle, a trapezoid, a semi-circle, an arc, etc.

[0045] Such as Figure 2 , among two adjacent heat dissipation fins 100, that is, the first heat dissipation fin 100a and the second heat dissipation fin 100b, the shapes of the outermost corresponding convex tooth portions are different, and the shapes of the other convex tooth portions are the same and are staggered.

[0046] In other embodiments, the heat dissipation fins 100 have multiple types. For example, the ends 110 of some heat dissipation fins 100 facing the fan 10 are tooth-like structures 120; the end faces 111 of the ends 110 of some heat dissipation fins 100 facing the fan 10 are arranged at an included angle, etc.

[0047] Optionally, two heat dissipation fins 100 form a group of heat dissipation fins 100. Among two adjacent groups of heat dissipation fins 100, one of the heat dissipation fins 100 in one group is located between the two heat dissipation fins 100 in the other group, and the structures and setting manners of the two heat dissipation fins 100 in the same group are the same. The structures and setting manners of two adjacent groups of heat dissipation fins 100 are different, so that the structures and setting manners between two adjacent heat dissipation fins 100 are different.

[0048] In one of the embodiments, such as Figure 1 and Figure 2As shown in the figure, the above radiator further includes a first plate 200 and a second plate 300. The first plate 200 is connected to one side of the heat dissipation fins 100, and the second plate 300 is connected to the other side of the heat dissipation fins 100. The first plate 200 and the second plate 300 are located on both sides of the flow channel 101. One end of the first plate 200 close to the air inlet is the first contact end, and one end of the second plate 300 close to the air inlet is the second contact end. The end 110 of the heat dissipation fins 100 facing the fan 10 is located within the docking space formed between the first contact end and the second contact end. The first plate 200 and the second plate 300 can cooperate with the heat dissipation fins 100 to enclose the flow channel 101, enabling the air flow to be more concentrated and fully exchange heat with the heat dissipation fins 100, accelerating the air flow velocity, and improving the heat exchange effect. The end 110 of the heat dissipation fins 100 facing the fan 10 does not extend out of the docking space between the first contact end and the second contact end, which is convenient for docking and installation with devices such as the fan 10, so as to improve the airtightness between the fan 10 and the radiator. At the same time, the timing of the air flow contacting the heat dissipation fins 100 is more reasonable, reducing the impact of the air flow on the heat dissipation fins 100.

[0049] Optionally, according to the usage environment of the radiator, the first plate 200 and the second plate 300 can be flat plates, arc plates or bent plates.

[0050] Optionally, the first plate 200 and the second plate 300 can be a single piece of plate material and be connected to all the heat dissipation fins 100 at the same time; or both ends of the heat dissipation fins 100 are bent to form a first bent portion and a second bent portion respectively. The first bent portion is the first plate 200, the second bent portion is the second plate 300, the part of the heat dissipation fins 100 located between the first bent portion and the second bent portion is the main body, and the end 110 of the heat dissipation fins 100 facing the fan 10 is one end of the main body close to the air inlet 101.

[0051] In one embodiment, as Figure 1 and Figure 2 shown, the end faces of the first contact end and the second contact end are located on the reference plane, and the vertices of each heat dissipation fin 100 do not exceed the reference plane. At this time, the end faces of the first contact end and the second contact end can be fitted and installed with the end face of the fan 10, and at this time, each heat dissipation fin 100 will not interfere with the position of the fan 10. After the radiator and the fan 10 are assembled, the airtightness is better, and the dissipation of the air flow can be reduced.

[0052] Specifically, the vertices of the ends of multiple heat dissipation fins 100 facing the fan 10 are all located on the same plane, which is convenient for assembling with the fan 10 and preventing position interference.

[0053] Optionally, the end faces 111 of the first contact end and the second contact end are flush, and at this time, it can be better docked with the fan 10.

[0054] In one embodiment, as Figure 5 shown, the above radiator further includes a heat pipe 400, and the heat pipe 400 sequentially penetrates through a plurality of heat dissipation fins 100, and the plurality of heat dissipation fins 100 are arranged in parallel. The heat pipe 400 is used to direct the heat of the component or device to the heat dissipation fins 100, and after heat exchange through the heat dissipation fins 100, rapid heat dissipation is achieved.

[0055] Wherein, a low-pressure liquid medium is filled in the heat pipe 400, which can improve the heat exchange efficiency.

[0056] Optionally, one end of the heat pipe 400 is fixed on the hot end, and the other end penetrates through the heat dissipation fins 100 and is fixed by welding.

[0057] As Figure 1 、 Figure 2 and Figure 5 shown, an embodiment discloses a heat dissipation structure, including a fan 10 and a radiator as in any of the above embodiments, and the radiator is arranged at the air inlet or the air outlet of the fan 10.

[0058] In the above heat dissipation structure, the air flow can enter the flow channel 101 from the air inlet or the air outlet, and the air flow exchanges heat with the heat dissipation fins 100 in the flow channel 101. When the air flow contacts the end 110 of the heat dissipation fin 100 facing the fan 10, since the shapes of the ends 110 of two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end 110a and the second end 110b, are different, there are structural differences between two adjacent heat dissipation fins 100, that is, the first heat dissipation fin 100a and the second heat dissipation fin 100b. Therefore, when the air flow contacts the ends 110 of two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end 110a and the second end 110b respectively, the acting force intensity of the air flow on a single heat dissipation fin 100 can be weakened, the diversion attack angle of the end 110 of the heat dissipation fin 100 facing the fan 10 can be adjusted, and the inflow condition of the end 110 of the heat dissipation fin 100 facing the fan 10 can be improved, the aerodynamic performance of the fan 10 can be improved, the noise can be reduced, and the user experience can be enhanced.

[0059] Wherein, the fan 10 can be a centrifugal fan 10 or an axial flow fan 10, etc.

[0060] Specifically, the radiator is arranged at the air outlet of the fan 10.

[0061] Optionally, the end face of the fan 10 provided with an air inlet or an air outlet is a contact surface, the contact surface is a flat surface, and at least part of the end face 111 of at least one of the two adjacent heat dissipation fins 100 facing the end 110 of the fan 10 is arranged at an angle with the above-mentioned contact surface. Of course, the side of the radiator close to the fan 10 has a docking surface, the docking surface is a flat surface, and can be docked and fitted with the contact surface to prevent air flow from escaping between the radiator and the fan 10 and affecting the heat dissipation effect. Specifically, both the docking surface and the contact surface are rectangular structures and have the same or similar dimensions. Of course, in other embodiments, according to the docking surface and the contact surface, they can also be of other shapes.

[0062] An embodiment discloses an electronic device, including the heat dissipation structure as described above.

[0063] In the above-mentioned electronic device, the air flow can enter the flow channel 101 from the air inlet or the air outlet. The air flow exchanges heat with the heat dissipation fins 100 in the flow channel 101. When the air flow contacts the end 110 of the heat dissipation fin 100 facing the fan 10, since the shapes of the ends 110 of the two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end 110a and the second end 110b, are different, there are structural differences between the two adjacent heat dissipation fins 100, that is, the first heat dissipation fin 100a and the second heat dissipation fin 100b. Therefore, when the air flow contacts the ends 110 of the two adjacent heat dissipation fins 100 facing the fan 10, that is, the first end 110a and the second end 110b respectively, it can weaken the acting force intensity of the air flow on a single heat dissipation fin 100, adjust the flow guiding attack angle of the end 110 of the heat dissipation fin 100 facing the fan 10, and improve the inflow condition of the end 110 of the heat dissipation fin 100 facing the fan 10, improve the aerodynamic performance of the fan 10, reduce noise, and enhance the user experience.

[0064] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0065] The above embodiments only represent several implementation manners of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

[0066] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0067] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0068] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0070] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

Claims

1. A radiator, which is used to be arranged at the air inlet or air outlet of a fan, is characterized in that, It includes a plurality of heat dissipation fins arranged at intervals, and a flow channel is formed between two adjacent heat dissipation fins, and the shapes of the ends of two adjacent heat dissipation fins facing the fan are different; The projections of the ends of two adjacent heat dissipation fins facing the fan on a projection plane parallel to any one of the heat dissipation fins do not overlap; At least part of the end faces of the ends of two adjacent heat dissipation fins facing the fan are arranged at an angle, so that the angles between at least part of the end faces of the ends of two adjacent heat dissipation fins facing the fan and the end face of the fan are different.

2. The radiator according to claim 1, wherein The end faces of the ends of two adjacent heat dissipation fins facing the fan are both flat planes, and the inclination directions of the end faces of the ends of two adjacent heat dissipation fins facing the fan are opposite.

3. The radiator according to claim 1, characterized in that, The ends of at least two adjacent heat dissipation fins facing the fan are tooth-like structures, and the tooth-like structures include a plurality of convex tooth parts, and the convex tooth parts of two adjacent heat dissipation fins are arranged staggered.

4. The radiator according to any one of claims 1 to 3, characterized in that It further includes a first plate and a second plate. The first plate is connected to one side of the heat dissipation fin, and the second plate is connected to the other side of the heat dissipation fin. The first plate and the second plate are located on both sides of the flow channel. The end part of the first plate close to the air inlet is the first contact end part, and the end part of the second plate close to the air inlet is the second contact end part. The end of the heat dissipation fin facing the fan is located in the docking space formed between the first contact end part and the second contact end part.

5. The radiator according to claim 4, wherein The end faces of the first contact end part and the second contact end part are located on a reference plane, and the vertices of each heat dissipation fin do not exceed the reference plane.

6. The radiator according to any one of claims 1-3, characterized in that, It further includes heat pipes, and the heat pipes sequentially penetrate through a plurality of the heat dissipation fins, and the plurality of heat dissipation fins are arranged in parallel.

7. A heat dissipation structure, characterized in that, It includes a fan and a radiator according to any one of claims 1-6, and the radiator is arranged at the air inlet or the air outlet of the fan.

8. An electronic device, characterized in that, It includes a heat dissipation structure according to claim 7.

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