Radiating structure and radiator

Abstract

The utility model relates to the technical field of heat dissipation devices, and provides a heat dissipation structure and a radiator. The heat dissipation structure comprises a heat dissipation body arranged in a heat dissipation channel. In the width direction of the heat dissipation channel, the heat dissipation body is provided with two opposite side faces, the two side faces are both arc-shaped faces, the two arc-shaped faces protrude in the direction away from each other in the width direction of the heat dissipation channel, the arc-shaped faces extend in the extending direction of the heat dissipation channel, and the area of the arc-shaped faces is enlarged. When the cooling medium flows along the heat dissipation channel and flows through the heat dissipation body, the contact area between the cooling medium and the arc-shaped face is increased, and the heat exchange effect is improved. The streamline structure formed by the arc-shaped surface enables the cooling medium to flow in a laminar flow state in a manner of being attached to the arc-shaped surface, so that the flow resistance of the cooling medium in the heat dissipation channel is reduced, the heat exchange efficiency of the cooling medium in the heat dissipation channel is improved, and the energy consumption required for driving the cooling medium to flow can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of heat dissipation devices, and in particular to a heat dissipation structure and a heat sink. Background Art

[0002] A radiator is a commonly used heat dissipation device. A radiator usually has a heat dissipation channel. Liquid or gas flows through the heat dissipation channel, and heat is exchanged between the liquid or gas and the inner wall of the heat dissipation channel to achieve the heat dissipation function. In order to speed up the heat dissipation speed of the radiator, a column structure is usually arranged inside the radiator. The column structure is connected to the inner wall of the heat dissipation channel, so that when the liquid or gas flows through the heat dissipation channel, it also contacts the column structure for heat exchange, thereby increasing the heat dissipation area of ​​the radiator.

[0003] The heat dissipation column of the heat dissipation channel can increase the area for heat exchange of liquid or gas, but the flow resistance of liquid or gas when flowing through the column structure is large, which affects the flow of liquid or gas in the heat dissipation channel, thereby affecting the heat dissipation efficiency of the radiator. Utility Model Content

[0004] In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a heat dissipation structure and a heat sink.

[0005] The present disclosure provides a heat dissipation structure, comprising a heat dissipation body arranged in a heat dissipation channel;

[0006] Along the width direction of the heat dissipation channel, the heat sink has two oppositely arranged side surfaces, and both of the side surfaces are arc-shaped surfaces. The two arc-shaped surfaces protrude in directions away from each other along the width direction of the heat dissipation channel, and the arc-shaped surfaces extend along the extension direction of the heat dissipation channel, so that the heat sink forms a streamlined structure extending along the extension direction of the heat dissipation channel.

[0007] Optionally, the heat sink includes a first portion and a second portion connected along an extension direction of the heat sink channel, and along a width direction of the heat sink channel, the first portion includes two first side surfaces that are oppositely disposed, and the second portion includes two second side surfaces that are oppositely disposed, and the first side surfaces and the second side surfaces that are located on the same side of the heat sink along the width direction of the heat sink channel form the arc surface;

[0008] The curvature of the first side surface is greater than the curvature of the second side surface.

[0009] Optionally, two ends of the first side surfaces away from the second part are connected, and the connection has a smooth transition, and the first part is located on the upstream side of the second part.

[0010] Optionally, along the extension direction of the heat sink, the length dimension of the first portion is smaller than the length dimension of the second portion, and the first portion is located on the upstream side of the second portion.

[0011] Optionally, the heat sink is symmetrical about a first plane along a width direction of the heat sink channel, and the first plane is perpendicular to the width direction of the heat sink channel and passes through a center point of the heat sink.

[0012] Optionally, the heat sink is symmetrical about a second plane along the extension direction of the heat sink channel, the second plane is perpendicular to the extension direction of the heat sink channel, and the second plane passes through the center point of the heat sink.

[0013] The present disclosure further provides a radiator, comprising a shell and a heat dissipation structure as described in any one of the above items, wherein a heat dissipation channel is provided in the shell, and the heat dissipation body is arranged in the heat dissipation channel.

[0014] Optionally, the heat dissipation channel includes at least two straight segments and at least one bent segment, the plurality of straight segments extend along the extension direction of the shell, and the plurality of straight segments are arranged at intervals along the width direction of the shell, two adjacent straight segments are connected by a bent segment, and the heat sink is arranged in the straight segment.

[0015] Optionally, a guide plate is provided in at least the bending section, and the shape of the guide plate is adapted to the shape of the inner wall of the bending section.

[0016] Optionally, there are multiple heat sinks, and the multiple heat sinks are arranged in the heat sink channel at intervals along the extension direction of the heat sink channel.

[0017] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0018] The heat dissipation structure and radiator provided by the present disclosure are configured to include a heat dissipation body arranged in a heat dissipation channel; along the width direction of the heat dissipation channel, the heat dissipation body has two oppositely arranged side surfaces, and both side surfaces are arc-shaped surfaces, the two arc-shaped surfaces protrude in directions away from each other along the width direction of the heat dissipation channel, and the arc-shaped surfaces extend along the extension direction of the heat dissipation channel, thereby expanding the area of ​​the arc-shaped surfaces, so that the heat dissipation body forms a streamlined structure extending along the extension direction of the heat dissipation channel. When the cooling medium flows along the heat dissipation channel and flows through the heat dissipation body, there is a larger contact area between the cooling medium and the arc-shaped surfaces, thereby improving the heat exchange effect between the cooling medium and the heat dissipation body. The streamlined structure formed by the arc-shaped surfaces can make the cooling medium flow in a laminar state by fitting the arc-shaped surfaces, thereby avoiding turbulence and increasing flow resistance when the cooling medium flows through the heat dissipation body, thereby reducing the flow resistance of the cooling medium in the heat dissipation channel, improving the heat exchange efficiency of the cooling medium in the heat dissipation channel, and reducing the energy consumption required to drive the cooling medium to flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a main cross-sectional view of a heat sink according to an embodiment of the present disclosure;

[0022] Figure 2 It is a main cross-sectional view of another heat sink according to an embodiment of the present disclosure;

[0023] Figure 3 It is a structural schematic diagram of the radiator according to the embodiment of the present disclosure;

[0024] Figure 4 A top view of a heat sink provided with a heat sink according to an embodiment of the present disclosure;

[0025] Figure 5 A top view of another heat sink provided with the heat sink described in an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 1. heat sink; 11. first part; 111. first side; 12. second part; 121. second side; 13. base; 2. shell; 21. first inlet and outlet; 22. second inlet and outlet; 3. heat dissipation channel; 31. straight section; 32. bending section; 33. guide plate; 4. first plane; 5. second plane. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0030] Reference Figures 1 to 5 As shown, an embodiment of the present disclosure provides a heat dissipation structure, including a heat sink 1 arranged in a heat dissipation channel 3; along the width direction of the heat dissipation channel 3, the heat sink 1 has two oppositely arranged side surfaces, and the two side surfaces are arc-shaped surfaces, the two arc-shaped surfaces protrude in directions away from each other along the width direction of the heat dissipation channel 3, and the arc-shaped surfaces extend along the extension direction of the heat dissipation channel 3, so that the heat sink 1 forms a streamlined structure extending along the extension direction of the heat dissipation channel 3.

[0031] First, a cylindrical heat dissipation column is usually set inside the heat dissipation channel. Liquid or gas flows along the heat dissipation channel as a cooling medium and flows through the heat dissipation column. When the cooling medium flows through the heat dissipation column, the resistance it encounters includes the friction between the cooling medium and the surface of the heat dissipation column and the resistance formed by turbulence caused by the cooling medium separating from the surface of the heat dissipation column when flowing through the surface of the heat dissipation column.

[0032] When the cooling medium flows through the heat sink, the side of the heat sink that first contacts the cooling medium is the front side, and the side of the heat sink opposite to the front side in the flow direction of the cooling medium is the rear side. When the cooling medium flows through the heat sink, a boundary layer will be formed on the heat sink. Since the cooling medium needs a faster flow speed to continuously absorb the heat from the heat sink, the boundary layer of the cooling medium will separate from the surface of the heat sink on the arc on the front side of the cylindrical heat sink. After the boundary layer separation of the cooling medium on the heat sink, a vortex will be formed on the rear side of the heat sink. As the speed of the cooling medium increases, the vortex of the cooling medium on the rear side of the heat sink will also form turbulence. Regardless of whether a vortex or turbulence is formed on the rear side of the heat sink, the kinetic energy of the cooling medium will be further consumed on the basis of the friction between the cooling medium and the surface of the heat sink itself, resulting in an increase in the flow resistance of the cooling medium.

[0033] The heat dissipation column can also be selected to be a rectangular structure. When the cooling medium flows through the heat dissipation column, it impacts the surface on the front side of the heat dissipation column, so that the movement direction of the cooling medium along the surface on the front side of the heat dissipation column is perpendicular to the movement direction of the rest of the cooling medium, resulting in turbulence in the cooling medium when flowing through the heat dissipation column. On the basis of the friction between the cooling medium and the surface of the heat dissipation column itself, the kinetic energy of the cooling medium is further consumed, resulting in an increase in the flow resistance of the cooling medium.

[0034] The heat sink 1 provided in the embodiment of the present disclosure has two opposite curved surfaces along the width direction of the heat dissipation channel 3, and the two curved surfaces protrude in directions away from each other along the width direction of the heat dissipation channel 3, and the curved surfaces extend along the extension direction of the heat dissipation channel 3, so that the heat sink 1 forms a streamlined structure extending along the extension direction of the heat dissipation channel 3. When the cooling medium flows along the extension direction of the heat dissipation channel 3 and flows through the curved surfaces, the cooling medium can flow on the streamlined curved surfaces to form a laminar flow, thereby avoiding boundary layer separation and forming turbulence when the cooling medium flows through the heat sink 1, thereby reducing the flow resistance of the cooling medium when flowing through the heat sink 1.

[0035] Specifically, the heat sink 1 can be selected to be a column structure or a sheet structure. When the heat dissipation channel 3 is arranged in the horizontal direction, the column structure or the sheet structure is vertically arranged in the heat dissipation channel 3, the vertical direction is the height direction of the heat dissipation channel 3 and the heat dissipation body 1, the heat dissipation channel 3 extends in the horizontal direction, the extension direction of the heat dissipation channel 3 is the length direction of the heat dissipation channel 3, the width direction of the heat dissipation channel 3 is perpendicular to the extension direction of the heat dissipation channel 3, when the cooling medium flows in the heat dissipation channel 3, the cooling medium flows along the extension direction of the heat dissipation channel 3; the extension direction of the heat dissipation body 1 is consistent with the extension direction of the heat dissipation channel 3, that is, the length direction of the heat dissipation body 1 is in the same direction as the length direction of the heat dissipation channel 3, and the width direction of the heat dissipation body 1 is consistent with the width direction of the heat dissipation channel 3, so that when the cooling medium flows in the heat dissipation channel 3, the cooling medium flows along the extension direction of the heat dissipation body 1; the length dimension of the heat dissipation body 1 is the dimension of the maximum distance of the heat dissipation body 1 along the length direction of the heat dissipation channel 3, and the width dimension of the heat dissipation body 1 is the dimension of the maximum distance of the heat dissipation body 1 along the width direction of the heat dissipation channel 3.

[0036] A plane perpendicular to the height direction of the heat sink 1 can be selected as the cross section of the heat sink 1. The cross section of the heat sink 1 can be selected to be elliptical, and the major axis of the ellipse is the length direction of the heat sink 1. Of course, the cross section of the heat sink 1 can also be selected to be spindle-shaped or teardrop-shaped, and the spindle-shaped or teardrop-shaped extends along the length direction of the heat dissipation channel 3. When the cross section of the heat sink 1 is spindle-shaped, teardrop-shaped or elliptical, the heat sink 1 is a symmetrical structure along the width direction of the heat sink 1, and the symmetry plane of the heat sink 1 passes through the center point of the heat sink 1. The two side surfaces of the heat sink 1 opposite to each other along the width direction of the heat dissipation channel 3 are arc-shaped surfaces, and the distance between the arc-shaped surface and the symmetry plane of the heat sink 1 in the width direction of the heat sink 1 increases first and then decreases, so that the curve of the surface of the arc-shaped surface is a smooth curve, so that the two arc-shaped surfaces together form a streamlined structure of the heat sink 1 in the length direction of the heat dissipation channel 3.

[0037] Of course, it is also possible to choose that the curvatures of the two curved surfaces of the heat sink 1 along the width direction of the heat sink 1 are different, as long as the cooling medium can form a laminar flow on the curved surface when flowing through the heat sink 1 to reduce the flow resistance of the cooling medium flowing through the heat sink 1.

[0038] The length dimension of the above-mentioned heat sink 1 is the dimension of the maximum distance of the heat sink 1 along the length direction of the heat sink 3, and the width dimension of the heat sink 1 is the dimension of the maximum distance of the heat sink 1 along the width direction of the heat sink 3; the length dimension of the heat sink 1 can be selected to be larger than the width dimension of the heat sink 1, that is, the maximum distance dimension between the two ends of the heat sink 1 along the length direction of the heat sink 3 is larger than the maximum distance dimension of the two curved surfaces of the heat sink 1 along the width direction of the heat sink 3; the length dimension of the heat sink 1 is larger than the width dimension of the heat sink 1, and the two side surfaces of the heat sink 1 along the width direction of the heat sink 3 are curved surfaces, and the curved surfaces extend along the length direction of the heat sink 3, so that the heat sink 1 forms a streamlined structure in the length direction of the heat sink 3.

[0039] When the heat dissipation structure provided by the embodiment of the present disclosure is used specifically, the heat sink 1 is set in the cooling medium, and the length direction of the heat sink 1 is consistent with the length direction of the heat dissipation channel 3. The cooling medium flows along the heat dissipation channel 3 in the heat dissipation channel 3. When the cooling medium flows through the heat sink 1, it flows along the two opposite curved surfaces of the heat sink 1. The cooling medium flows in line with the curved surfaces, so that the cooling medium maintains a laminar state on the curved surfaces. The boundary layer of the cooling medium on the curved surface is in line with the curved surface, which avoids the separation of the boundary layer and the formation of turbulence, reduces the flow resistance of the cooling medium flowing through the heat sink 1, and reduces the power driving the cooling medium to flow to reduce energy consumption.

[0040] The heat dissipation structure provided by the embodiment of the present disclosure includes a heat dissipation body 1 arranged in a heat dissipation channel 3; along the width direction of the heat dissipation channel 3, the heat dissipation body 1 has two oppositely arranged side surfaces, and both side surfaces are arc-shaped surfaces, the two arc-shaped surfaces protrude in directions away from each other along the width direction of the heat dissipation channel 3, and the arc-shaped surfaces extend along the length direction of the heat dissipation channel 3, thereby expanding the area of ​​the arc-shaped surfaces, so that the heat dissipation body 1 forms a streamlined structure extending along the length direction of the heat dissipation channel 3. When the cooling medium flows along the heat dissipation channel 3 and flows through the heat dissipation body 1, there is a larger contact area between the cooling medium and the arc-shaped surfaces, thereby improving the heat exchange effect between the cooling medium and the heat dissipation body 1. The streamlined structure formed by the arc-shaped surfaces can make the cooling medium flow in a laminar state by fitting the arc-shaped surfaces, thereby avoiding turbulence and increasing flow resistance when the cooling medium flows through the heat dissipation body 1, thereby reducing the flow resistance of the cooling medium in the heat dissipation channel 3, improving the heat exchange efficiency of the cooling medium in the heat dissipation channel 3, and reducing the energy consumption required to drive the cooling medium to flow.

[0041] Reference Figure 1 and Figure 2 As shown, in some embodiments, the heat sink 1 includes a first portion 11 and a second portion 12 connected along an extension direction of the heat dissipation channel 3. Along the width direction of the heat dissipation channel 3, the first portion 11 includes two first side surfaces 111 arranged opposite to each other, and the second portion 12 includes two second side surfaces 121 arranged opposite to each other. The first side surface 111 and the second side surface 121 located on the same side of the heat sink 1 along the width direction of the heat dissipation channel 3 form an arc-shaped surface; the curvature of the first side surface 111 is greater than the curvature of the second side surface 121.

[0042] Specifically, the first part 11 and the second part 12 are connected to each other along the length direction of the heat sink 1. When the cooling medium flows through the heat sink 1, the first part 11 may contact the cooling medium first, that is, along the flow direction of the cooling medium, the second part 12 may be located at the rear side of the first part 11. Of course, the first part 11 may also be located at the rear side of the second part 12. The curvature of the first side surface 111 is greater than the curvature of the second side surface 121, that is, the curvature of the surface of the second side surface 121 is more gentle than the curvature of the surface of the first side surface 111, so that the cooling medium can more easily flow along the second side surface 121 of the second part 12 after flowing through the first part 11, better avoid the boundary layer of the cooling medium flowing from the second side surface 121 to separate, and ensure that the cooling medium can maintain a laminar flow state along the surface of the second side surface 121 when flowing through the second part 12.

[0043] The length direction of the first part 11 and the second part 12 is consistent with the length direction of the heat sink 1, and the width direction of the first part 11 and the second part 12 is consistent with the width direction of the heat sink 1; the cross-section of the first part 11 can form a conical structure with an arc-shaped edge, and the cross-section of the second part 12 forms a conical structure with an arc-shaped edge. The tip of the conical structure of the first part 11 is facing away from the second part 12 along the length direction of the heat sink 1, and the tip of the conical structure of the second part 12 is facing away from the first part 11 along the length direction of the heat sink 1.

[0044] The length dimension of the first part 11 is the maximum distance dimension between the two ends of the first part 11 along the length direction of the heat dissipation channel 3; the width dimension of the first part 11 is the maximum distance dimension between the two first side surfaces 111 of the first part 11 along the width direction of the heat dissipation channel 3; the length dimension of the second part 12 is the maximum distance dimension between the two ends of the second part 12 along the length direction of the heat dissipation channel 3; the width dimension of the second part 12 is the maximum distance dimension between the two second side surfaces 121 of the second part 12 along the width direction of the heat dissipation channel 3; the length dimension of the first part 11 can be selected to be larger than the width dimension of the first part 11, so that the conical structure of the first part 11 has a smaller taper, so that the cooling medium can be more easily diverted to flow along the two first side surfaces 111 when flowing, and the length dimension of the second part 12 is larger than the width dimension of the second part 12, so that the taper of the conical structure formed by the second part 12 is smaller, which is conducive to the cooling medium flowing along the second side surface 121.

[0045] Compared with a cylindrical or rectangular heat sink, when the width dimension of the heat sink is equal to the width dimensions of the first part 11 and the second part 12, the length dimension of the first part 11 is greater than the width dimension of the second part 12, thereby increasing the surface area of ​​the first part 11; when the width dimensions are equal, the length dimension of the second part 12 is greater than the width dimension of the second part 12, thereby increasing the surface area of ​​the second part 11, thereby increasing the surface area of ​​the heat sink 1 as a whole, and increasing the contact area between the cooling medium and the heat sink 1.

[0046] By setting the heat sink 1 to include a first part 11 and a second part 12, and the curvature of the first side surface 111 of the first part 11 is greater than the curvature of the second side surface 121 of the second part 12, the curvature of the surface of the second side surface 121 is gentler than the curvature of the surface of the first side surface 111, so that the cooling medium can more easily flow along the second side surface 121 of the second part 12 after flowing through the first part 11, and better avoid the boundary layer of the cooling medium flowing from separating from the second side surface 121, ensure that the cooling medium can maintain a laminar state flowing along the surface of the second side surface 121 when flowing through the second part 12, avoid boundary layer separation when the cooling medium flows on the second side surface 121, reduce the resistance of the cooling medium when flowing through the second part 12, and thus reduce the flow resistance of the cooling medium when flowing through the heat sink 1 as a whole.

[0047] Reference Figure 1 As shown, in some embodiments, the ends of the two first side surfaces 111 away from the second portion 12 are connected, and the connection is smoothly transitioned, and the first portion 11 is located on the upstream side of the second portion 12. In this way, when the cooling medium flows, it first contacts the first portion 11 and then contacts the second portion 12. The connection of the two first side surfaces 111 is smoothly transitioned, which is conducive to the cooling medium flowing along the two first side surfaces 111 of the first portion 11 when it contacts the first portion 11, avoiding the cooling medium from generating turbulence when contacting the connection of the two first side surfaces 111 of the first portion 11, so that the cooling medium is subject to lower flow resistance when flowing through the first portion 11.

[0048] Specifically, the connection between the two first side surfaces 111 can be formed into an arc surface to achieve a smooth transition connection, and of course, the connection between the two first side surfaces 111 can also be selected as an arc surface. In the length direction of the heat dissipation channel 3, the first part 11 is located on the upstream side of the second part 12, that is, the first part 11 is located on the front side of the second part 12. When the cooling medium flows in the heat dissipation channel 3 along the length direction of the heat dissipation channel 3, the first part 11 contacts the cooling medium first, and the cooling medium contacts the second part 12 only after flowing through the first part 11.

[0049] Reference Figure 1 As shown, in some embodiments, along the extension direction of the heat sink 1, the length dimension of the first portion 11 is smaller than the length dimension of the second portion 12, and the first portion 11 is located at the upstream side of the second portion 12. In this configuration, the cooling medium contacts the second portion 12 only after flowing through the first portion 11, and the cooling medium can flow along the second side surface 121 for a longer distance when flowing, which can better prevent the cooling medium from forming turbulence due to boundary layer separation on the second side surface 121.

[0050] Specifically, the length dimension of the first portion 11 is smaller than the length dimension of the second portion 12, which can increase the surface area of ​​the second side surface 121 of the second portion 12, increase the length of the second side surface 121 of the second portion 12, and also reduce the taper of the conical structure formed by the second portion 121, so that after the cooling medium flows through the first portion 11, the cooling medium can adhere to the second side surface 121 and flow a longer distance. Since the cooling medium first contacts the first portion 11 when flowing along the heat dissipation channel 3, the cooling medium is easier to flow along the first portion 11, but when the cooling medium flows to the second portion 12, since the second side surface 121 of the second portion 12 is In the part where the arc-shaped surface gradually shrinks, if the length of the second part 12 is short, it is easy to make the angle between the speed direction of the cooling medium after it separates from the end of the second part 12 away from the first part 12 and the length direction of the heat dissipation channel 3 larger, so that the cooling medium generates turbulence at the position where the second part 12 is away from the end of the first part 12. The length dimension of the second part 12 is greater than the length dimension of the first part 11, which extends the distance that the cooling medium flows along the second side surface 121, reduces the angle between the speed direction of the cooling medium when flowing along the second side surface 121 and the length direction of the heat dissipation channel 3, and avoids the formation of turbulence and increases the flow resistance of the cooling medium.

[0051] Reference Figure 1 and Figure 2 As shown, in some embodiments, the heat sink 1 is symmetrical about the first plane 4 along the width direction of the heat dissipation channel 3, and the first plane 4 is perpendicular to the width direction of the heat dissipation channel 3 and passes through the center point of the heat sink 1. In this way, when the cooling medium flows through the heat sink 1, the speed of the cooling medium flowing through the two streamlined curved surfaces of the heat sink 1 is consistent, so that the pressure of the cooling medium on the two streamlined curved surfaces in the width direction of the heat sink 1 is consistent, thereby improving the stability of the heat sink 1 in the cooling medium.

[0052] Specifically, Figure 1 and Figure 2 As shown, the first plane 4 can be selected to be perpendicular to the width direction of the heat dissipation channel 3, and the first plane 4 passes through the center point of the heat dissipation body 1, and the heat dissipation body 1 is symmetrical about the first plane 4 in the width direction of the heat dissipation channel 3, that is, the two arc-shaped surfaces of the heat dissipation body 1 are symmetrical about the first plane 4 in the width direction of the heat dissipation channel 3.

[0053] Reference Figure 2 As shown, in some embodiments, the heat sink 1 is symmetrical about the second plane 5 along the extension direction of the heat dissipation channel 3, the second plane 5 is perpendicular to the extension direction of the heat dissipation channel 3, and the second plane passes through the center point of the heat sink 1. Such an arrangement makes the heat sink 1 suitable for a heat sink in which the cooling medium can flow in both directions, thereby improving the use range of the heat sink 1.

[0054] Specifically, Figure 2As shown, the second plane 5 is perpendicular to the length direction of the heat dissipation channel 3, and the second plane 5 passes through the center point of the heat dissipation body 1. The first part 11 and the second part 12 can be selected to be located on both sides of the second plane 5 along the length direction of the first heat dissipation body 1, and the first part 11 and the second part 12 are symmetrical about the second plane 5 along the length direction of the first heat dissipation body 1. The heat dissipation body 1 is symmetrical about the second plane 5 in the length direction of the heat dissipation channel 3, so that the cooling medium is Figure 2 When the cooling medium moves from left to right and from right to left, the flow resistance of the cooling medium flowing through the heat sink 1 is consistent, so that the heat sink 1 is suitable for a radiator in which the cooling medium can flow in both directions.

[0055] Reference Figure 3 As shown, in some embodiments, the heat dissipation structure further includes a base 13, the heat sink 1 is connected to the base 13, and the base 13 is used to connect with the inner wall of the heat dissipation channel 3 of the heat sink. In this way, the base 13 can serve as a structure for connecting the heat sink 1 with the inner wall of the heat dissipation channel 3 of the heat sink, thereby improving the stability of the heat sink 1 in the heat dissipation channel 3.

[0056] Specifically, the base 13 can be a block structure with an arc surface, and of course the two opposite sides of the base 13 along the width direction of the heat sink 1 can also be arc-shaped. It can be selected that the projection of the heat sink 1 on the base 13 is located inside the base 13 in the height direction of the heat sink 1. The heat sink 1 and the base 13 can be an integrated structure, and the base 13 is installed on the inner wall of the heat dissipation channel 3 of the heat sink. Of course, the heat sink 1 and the base 13 can also be made into an integrated structure with the heat dissipation channel 3 of the heat sink.

[0057] The embodiment of the present disclosure further provides a heat sink, comprising a housing 2 and a heat dissipation structure as described in any one of the above items, wherein a heat dissipation channel 3 is provided in the housing 2, and the heat dissipation body 1 is provided in the heat dissipation channel 3. Specifically, the housing 2 can be selected to be a rectangular or other shaped housing, the housing 2 extends in one direction, the extension direction of the housing 2 is the length direction of the housing 2, and the width direction of the housing 2 is perpendicular to the length direction of the housing 2.

[0058] The above-mentioned shell 2 is provided with a heat dissipation channel 3 along the length direction of the shell 2. Of course, the shell 2 can also be provided with a curved heat dissipation channel 3. The outer surface of the shell 2 can be provided with a first inlet and outlet 21 and a second inlet and outlet 22. The first inlet and outlet 21 is connected to one end of the heat dissipation channel 3, and the second inlet and outlet 22 is connected to the other end of the heat dissipation channel 3. The cooling medium can be selected to enter the heat dissipation channel 3 from the first inlet and outlet 21 and be discharged from the heat dissipation channel 3 from the second inlet and outlet 22. Of course, the cooling medium can also be selected to enter the heat dissipation channel 3 from the second inlet and outlet 22 and be discharged from the heat dissipation channel 3 from the first inlet and outlet 21.

[0059] The heat dissipation channel 3 may be selected to extend along the length direction of the housing 2, and of course, the housing 2 may be selected to extend along the width direction of the heat dissipation channel 3, or when the heat dissipation channel 3 is curved, at least part of the heat dissipation channel 3 may extend along the length direction of the housing 2; the heat sink 1 may be selected to be arranged in the heat dissipation channel 3, and when the heat dissipation channel 3 is a straight channel, the length direction of the heat sink 1 may be selected to be consistent with the extension direction of the heat dissipation channel 3, and when the heat dissipation channel 3 is a curved channel, the heat sink 1 may be arranged in the part of the heat dissipation channel 3 extending in a straight line in the curved heat dissipation channel 3, and the length direction of the heat sink 1 may be consistent with the extension direction of the part of the heat dissipation channel 3 extending in a straight line where the heat sink 1 is located. When the cooling medium flows along the heat dissipation channel 3, the heat sink 1 can reduce the flow resistance of the cooling medium when it flows through the heat sink 1.

[0060] The length, width and height of the heat sink 1 can be determined based on the length, width and height of the heat dissipation channel 3, so that the heat sink 1 can adapt to the size of the heat dissipation channel 3, avoid the heat sink 1 being too large to occupy the space in the heat dissipation channel 3, and avoid the heat sink 1 being too small to have a poor heat dissipation effect.

[0061] The width of the heat sink 1 can be selected according to the width of the heat dissipation channel 3 and the diameter matching design of the first inlet and outlet 21 and the second inlet and outlet 22. If the width of the heat sink 1 is too small, it is not conducive to heat dissipation. If the heat sink 1 is too large, the flow resistance of the cooling medium in the heat dissipation channel 3 will also be large, thereby increasing energy consumption.

[0062] By setting a heat sink 1 in the heat dissipation channel 3 of the radiator, when the cooling medium flows in the heat dissipation channel 3, compared with the commonly used heat dissipation column structure, the contact area between the heat sink 1 and the cooling medium is larger, and the flow resistance of the cooling medium flowing through the heat sink 1 is smaller, thereby improving the cooling efficiency of the cooling medium and reducing the energy consumption required to drive the cooling medium to flow in the heat dissipation channel 3 at a speed that meets the heat dissipation requirements.

[0063] Reference Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the heat dissipation channel 3 includes at least two straight segments 31 and at least one bent segment 32, the plurality of straight segments 31 all extend along the extension direction of the housing 2, and the plurality of straight segments 31 are arranged at intervals along the width direction of the housing 2, two adjacent straight segments 31 are connected through a bent segment 32, and the heat sink 1 is arranged in the straight segments 31. In this way, the plurality of straight segments 31 and the plurality of bent segments 32 increase the overall volume of the heat dissipation channel 3, so that the heat dissipation channel 3 can accommodate more cooling medium flow, and improve the heat exchange effect of the cooling medium flowing in the heat dissipation channel 3 on the housing 2.

[0064] Specifically, the heat dissipation channel 3 can be bent once so that the heat dissipation channel 3 includes two straight segments 31 and a bent segment 32, the two straight segments 31 are connected through a bent segment 32, one end of one straight segment 31 away from the bent segment 32 is connected to the outside of the shell 2, and the other end of the straight segment 31 away from the bent segment 32 is connected to the outside of the shell 2.

[0065] Of course, the heat dissipation channel 3 can also be bent multiple times to form multiple straight segments 31 and multiple bent segments 32, the number of bent segments 32 is one less than the number of straight segments 31, and the multiple straight segments 31 are arranged at intervals along the width direction of the shell 2, and every two adjacent straight segments 31 are connected by a bent segment 32, and the two straight segments 31 along the width edge of the shell 2 are connected to the outside of the shell 2, so that the cooling medium flows through the multiple straight segments 31 and the bent segments 32 in sequence along the direction of the shell and is discharged from the shell 2.

[0066] The above-mentioned heat sink 1 can be selected in multiple quantities. Multiple heat sinks 1 can be set in each straight line segment 31, while one heat sink 1 can be set in each straight line segment 31. Of course, one heat sink 1 can also be set in one straight line segment 31 among multiple straight line segments 31.

[0067] The above-mentioned heat sink 1 is only arranged in the straight section 31 . If the heat sink 1 is arranged in the bending section 32 , the cooling medium will form turbulence when flowing through the heat sink 1 along the curved bending section 32 , which will increase the resistance of the cooling medium flowing in the heat dissipation channel 3 .

[0068] Reference Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, at least a guide plate 33 is provided in the bending section 32, and the shape of the guide plate 33 is adapted to the shape of the inner wall of the bending section 32. In this way, the guide plate 33 can play a guiding role in the bending section 32, so as to prevent the cooling medium from directly impacting the inner wall of the bending section 32 of the heat dissipation channel 3 to form a turbulent flow and increase the resistance of the cooling medium moving in the heat dissipation channel 3.

[0069] Specifically, the guide plate 33 can be selected as a curved panel, and the guide plate 33 is parallel to the side wall of the bending section 32, so that the guide plate 33 can play a guiding role in the bending section 32, and prevent the cooling medium from directly impacting the inner wall of the bending section 32 of the heat dissipation channel 3 to form a turbulent flow. The number of guide plates 33 can be selected to be multiple, and the multiple guide plates 33 are arranged at intervals in the bending section 32 along the inner wall of one side of the bending section 32 toward the inner wall of the other side.

[0070] Refer to 3. Figure 4 and Figure 5As shown, in some embodiments, there are multiple heat sinks 1, and the multiple heat sinks 1 are arranged in the heat sink 3 at intervals along the extension direction of the heat sink 3. Such an arrangement enables the multiple heat sinks 1 to perform heat exchange in the heat sink 3, and the multiple heat sinks 1 are arranged at intervals, which can avoid mutual interference between the multiple heat sinks 1 and improve the heat dissipation effect of the radiator.

[0071] Specifically, the number of the heat sinks 1 may be ten, and of course the number of the heat sinks 1 may also be three or five.

[0072] When the heat dissipation channel 3 includes a straight segment 31 and a bent segment 32, multiple heat sinks 1 can be selected and arranged in sequence along the length direction of the straight segment 31 to form a heat sink group. A heat sink group can be set in each straight segment 31, and one heat sink 1 can also be set in each straight segment 31. It is also not limited to setting one heat sink 1 or one heat sink group in one straight segment of multiple straight segments 31.

[0073] The distance between the above-mentioned multiple heat sinks 1 can be selected and determined according to the width of the heat sink 1, so that there is an appropriate distance between the multiple heat sinks 1. It is necessary to avoid that the distance between the multiple heat sinks 1 is too large, which will cause the number of heat sinks 1 in the heat dissipation channel 3 to be insufficient, affecting the heat dissipation efficiency. At the same time, it is also necessary to avoid that the distance between the multiple heat sinks 1 is too small. When the heat sink 1 and the heat dissipation channel 3 are manufactured by integrated processing, the small distance between the multiple heat sinks 1 will increase the difficulty of processing the heat sink 1, which is not conducive to the processing and production of the radiator.

[0074] When the radiator provided by the embodiment of the present disclosure is used, the cooling medium enters the heat dissipation channel 3 through the first inlet and outlet 21, and is discharged from the heat dissipation channel 3 from the second inlet and outlet 22. When flowing in the heat dissipation channel 3, the cooling medium flows through multiple heat sinks 1, and the cooling medium flows through the heat sink 1 along the extension direction of the heat sink 1. In the process of the cooling medium flowing through the heat sink 1, the cooling medium first flows along the first side surface 111 of the first part 11, and then flows on the second side surface 121 of the second part 12, so that the cooling medium forms a laminar flow on the curved surface of the heat sink 1, thereby reducing the flow resistance of the cooling medium in the heat dissipation channel 3, thereby reducing the power required to drive the cooling medium to flow and reducing energy consumption.

[0075] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0076] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat dissipation structure, characterized in that: including a heat sink disposed in the heat dissipation channel; Along the width direction of the heat dissipation channel, the heat sink has two oppositely arranged side surfaces, and both of the side surfaces are arc-shaped surfaces. The two arc-shaped surfaces protrude in directions away from each other along the width direction of the heat dissipation channel, and the arc-shaped surfaces extend along the extension direction of the heat dissipation channel, so that the heat sink forms a streamlined structure extending along the extension direction of the heat dissipation channel.

2. The heat dissipation structure according to claim 1, characterized in that: The heat sink comprises a first part and a second part connected along the extension direction of the heat dissipation channel, along the width direction of the heat dissipation channel, the first part comprises two first side surfaces arranged opposite to each other, the second part comprises two second side surfaces arranged opposite to each other, and the first side surfaces and the second side surfaces located on the same side of the heat sink along the width direction of the heat dissipation channel form the arc surface; The curvature of the first side surface is greater than the curvature of the second side surface.

3. The heat dissipation structure according to claim 2, characterized in that: The ends of the two first side surfaces away from the second portion are connected, and the connection portion has a smooth transition, and the first portion is located at the upstream side of the second portion.

4. The heat dissipation structure according to claim 2, characterized in that: Along the extending direction of the heat sink, the length dimension of the first portion is smaller than the length dimension of the second portion, and the first portion is located at the upstream side of the second portion.

5. The heat dissipation structure according to any one of claims 1 to 4, characterized in that: The heat sink is symmetrical about a first plane along a width direction of the heat sink passage. The first plane is perpendicular to the width direction of the heat sink passage and passes through a center point of the heat sink.

6. The heat dissipation structure according to any one of claims 1 to 4, characterized in that: The heat sink is symmetrical about a second plane along the extension direction of the heat sink channel, the second plane is perpendicular to the extension direction of the heat sink channel, and the second plane passes through the center point of the heat sink.

7. A radiator, characterized in that: It comprises a shell and the heat dissipation structure according to any one of claims 1 to 6, wherein a heat dissipation channel is provided in the shell, and the heat dissipation body is arranged in the heat dissipation channel.

8. The heat sink according to claim 7, characterized in that: The heat dissipation channel includes at least two straight segments and at least one bent segment, the plurality of straight segments all extend along the extension direction of the shell, and the plurality of straight segments are arranged at intervals along the width direction of the shell, two adjacent straight segments are connected through one bent segment, and the heat sink is arranged in the straight segment.

9. The heat sink according to claim 8, characterized in that: At least a guide plate is provided in the bending section, and the shape of the guide plate is matched with the shape of the inner wall of the bending section.

10. The heat sink according to claim 7, characterized in that There are multiple heat sinks, and the multiple heat sinks are arranged in the heat sink channel at intervals along the extension direction of the heat sink channel.

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