Heat dissipation structure and radiator

Abstract

The present application relates to the technical field of heat dissipation devices. Provided are a heat dissipation structure and a radiator. The heat dissipation structure comprises heat dissipation bodies disposed in a heat dissipation channel, wherein in the direction of the width of the heat dissipation channel, each heat dissipation body has two side faces arranged opposite each other, and the two side faces are both arc-shaped faces, the two arc-shaped faces bulging away from each other in the direction of the width of the heat dissipation channel; and the arc-shaped faces extend in the extension direction of the heat dissipation channel, and the area of each arc-shaped face is enlarged, such that the heat dissipation bodies form a streamlined structure extending in the extension direction of the heat dissipation channel. When a cooling medium flows along the heat dissipation channel and flows through the heat dissipation bodies, the contact area between the cooling medium and the arc-shaped faces is enlarged, thereby improving a heat exchange effect. The streamlined structure formed by the arc-shaped faces can enable the cooling medium to flow close to the arc-shaped faces in a laminar flow state, such 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

Heat dissipation structure and radiator

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 22, 2024, with application number 202420575265.3 and utility model name “Heat Dissipation Structure and Radiator”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of heat dissipation devices, and in particular to a heat dissipation structure and a radiator. Background Art

[0003] A radiator is a commonly used heat dissipation device. Usually, a radiator 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 set inside the radiator. The column structure is connected to the inner wall of the heat dissipation channel, so that the liquid or gas flows through the heat dissipation channel and also contacts the column structure for heat exchange, thereby increasing the heat dissipation area of ​​the radiator.

[0004] The heat dissipation column of the heat dissipation channel can increase the area for heat exchange between liquid or gas, but the flow resistance of liquid or gas when flowing through the column structure is large, affecting the flow of liquid or gas in the heat dissipation channel, thereby affecting the heat dissipation efficiency of the radiator. Summary of the Invention

[0005] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a heat dissipation structure and a heat sink.

[0006] The present application provides a heat dissipation structure, comprising a heat dissipation body arranged in a heat dissipation channel;

[0007] 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.

[0008] Optionally, the heat sink includes a first portion and a second portion connected along an extension direction of the heat dissipation channel; along a width direction of the heat dissipation channel, the first portion includes two first side surfaces arranged opposite to each other, and the second portion includes two second side surfaces arranged opposite to each other; 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 arcuate surface;

[0009] The curvature of the first side surface is greater than the curvature of the second side surface.

[0010] Optionally, the ends of the two first side surfaces away from the second portion are connected, and the connection is smoothly transitioned, and the first portion is located on the upstream side of the second portion.

[0011] 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.

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

[0013] Optionally, the heat sink is symmetrical about a second plane along the extension direction of the heat dissipation channel, the second plane is perpendicular to the extension direction of the heat dissipation channel, and the second plane passes through the center point of the heat sink.

[0014] The present application also provides a radiator, comprising a shell and a heat dissipation structure as described above, wherein a heat dissipation channel is provided in the shell, and the heat dissipation body is arranged in the heat dissipation channel.

[0015] Optionally, the heat dissipation channel includes at least two straight segments and at least one bent segment, and the multiple straight segments extend along the extension direction of the shell, and the multiple straight segments are arranged at intervals along the width direction of the shell, and two adjacent straight segments are connected through a bent segment, and the heat sink is arranged in the straight segment.

[0016] 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.

[0017] 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.

[0018] The technical solution provided by the embodiments of the present application has the following advantages compared with the prior art:

[0019] The heat dissipation structure and radiator provided by the present application 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 in accordance with the arc-shaped surfaces, thereby avoiding turbulence and increased flow resistance when the cooling medium flows through the heat dissipation body, 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.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] FIG1 is a main cross-sectional view of a heat sink according to an embodiment of the present application;

[0023] FIG2 is a main cross-sectional view of another heat sink according to an embodiment of the present application;

[0024] FIG3 is a schematic structural diagram of a radiator according to an embodiment of the present application;

[0025] FIG4 is a top view of a heat sink according to an embodiment of the present application having a heat sink;

[0026] FIG5 is a top view of the heat sink according to an embodiment of the present application provided with another heat sink.

[0027] Figure numerals: 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. bent section; 33. guide plate; 4. first plane; 5. second plane. Specific embodiments

[0028] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0030] Referring to Figures 1 to 5, an embodiment of the present application 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 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 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 dissipation column, the side of the heat dissipation column that first contacts the cooling medium is the front side, and the side of the heat dissipation column 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 dissipation column, a boundary layer will be formed on the heat dissipation column. Since the cooling medium needs a faster flow speed to continuously absorb the heat from the heat dissipation column, the boundary layer of the cooling medium will separate from the surface of the heat dissipation column on the arc on the front side of the cylindrical heat dissipation column. After the boundary layer separation of the cooling medium on the heat dissipation column, a vortex will be formed on the rear side of the heat dissipation column. As the speed of the cooling medium increases, the vortex of the cooling medium on the rear side of the heat dissipation column will also form turbulence. Regardless of whether a vortex or turbulence is formed on the rear side of the heat dissipation column, the friction between the cooling medium and the surface of the heat dissipation column itself consumes the kinetic energy of the cooling medium, which will further consume the kinetic energy of the cooling medium, resulting in an increase in the flow resistance of the cooling medium.

[0033] The heat dissipation column can also be selected as 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 consuming the kinetic energy of the cooling medium, 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 application has two opposite curved surfaces along the width direction of the heat dissipation channel 3. 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 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, since the cooling medium flows along the extension direction of the heat dissipation channel 3, the curved surface of the heat sink 1 in the embodiment of the present application can be regarded as extending along the flow direction of the cooling medium, so that the heat sink 1 forms a streamlined structure extending along the flow direction of the cooling medium.

[0036] Specifically, the heat sink 1 can be selected as 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.

[0037] 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 elliptical, with the major axis of the ellipse being the length direction of the heat sink 1. Of course, the cross section of the heat sink 1 can also be spindle-shaped or teardrop-shaped, with the spindle or teardrop shape extending 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 has a symmetrical structure along the width direction of the heat sink 1. The symmetry plane of the heat sink 1 passes through the center point of the heat sink 1. The two opposing side surfaces of the heat sink 1 along the width direction of the heat dissipation channel 3 are arcuate surfaces. The distance between the arcuate surfaces and the symmetry plane of the heat sink 1 in the width direction of the heat sink 1 first increases and then decreases, so that the surface curve of the arcuate surfaces is a smooth curve. The two arcuate surfaces together form a streamlined structure of the heat sink 1 along the length direction of the heat dissipation channel 3.

[0038] Of course, it is also possible to choose that the curvature of the two curved surfaces of the heat sink 1 along the width direction of the heat sink 1 is 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.

[0039] 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 dissipation channel 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 dissipation channel 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 dissipation channel 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 dissipation channel 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 dissipation channel 3 are curved surfaces, and the curved surfaces extend along the length direction of the heat dissipation channel 3, so that the heat sink 1 forms a streamlined structure in the length direction of the heat dissipation channel 3.

[0040] When the heat dissipation structure provided in the embodiment of the present application is used, 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 accordance with the curved surface, so that the cooling medium maintains a laminar state on the curved surface. The boundary layer of the cooling medium on the curved surface is in accordance with the curved surface, avoiding the separation of the boundary layer and the formation of turbulence, reducing the flow resistance of the cooling medium flowing through the heat sink 1, and reducing the power driving the flow of the cooling medium to reduce energy consumption.

[0041] The heat dissipation structure provided by the embodiment of the present application includes 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 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 sink 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 sink 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 sink 1. The streamlined structure formed by the arc-shaped surfaces can make the cooling medium flow in a laminar state in accordance with the arc-shaped surfaces, thereby avoiding turbulence and increased flow resistance when the cooling medium flows through the heat sink 1, 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.

[0042] 1 and 2 , 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.

[0043] Specifically, the first portion 11 and the second portion 12 are interconnected along the length of the heat sink 1. When the cooling medium flows through the heat sink 1, the first portion 11 may contact the cooling medium first, that is, along the flow direction of the cooling medium, and the second portion 12 may be located behind the first portion 11. Alternatively, the first portion 11 may be located behind the second portion 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 gradual than the curvature of the surface of the first side surface 111. This allows the cooling medium to more easily flow along the second side surface 121 of the second portion 12 after flowing through the first portion 11, better preventing the boundary layer of the cooling medium from separating from the second side surface 121, and ensuring that the cooling medium maintains a laminar flow along the surface of the second side surface 121 when flowing through the second portion 12.

[0044] The length direction of the above-mentioned 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.

[0045] 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 tapered 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 tapered structure formed by the second part 12 is smaller, which is conducive to the cooling medium flowing along the second side surface 121.

[0046] 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.

[0047] By providing the heat sink 1 with a first portion 11 and a second portion 12, and the curvature of the first side surface 111 of the first portion 11 is greater than the curvature of the second side surface 121 of the second portion 12, the curvature of the surface of the second side surface 121 is smoother 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 portion 12 after flowing through the first portion 11, and better avoid the boundary layer of the cooling medium flowing from the second side surface 121. It is ensured that the cooling medium can maintain a laminar state flowing along the surface of the second side surface 121 when flowing through the second portion 12, avoiding boundary layer separation of the cooling medium when flowing on the second side surface 121, reducing the resistance of the cooling medium when flowing through the second portion 12, and thus reducing the flow resistance of the cooling medium when flowing through the heat sink 1 as a whole.

[0048] As shown in FIG1 , in some embodiments, the ends of the two first side surfaces 111 away from the second portion 12 are connected, and the connection has a smooth transition, and the first portion 11 is located upstream of the second portion 12. This configuration allows the cooling medium to first contact the first portion 11 and then contact the second portion 12 when flowing. The connection between the two first side surfaces 111 has a smooth transition, which facilitates the cooling medium to flow along the two first side surfaces 111 of the first portion 11 when contacting the first portion 11, avoiding turbulence generated by the cooling medium when contacting the connection between the two first side surfaces 111 of the first portion 11, and thus reducing the flow resistance of the cooling medium when flowing through the first portion 11.

[0049] Specifically, the connection between the two first side surfaces 111 can be formed into an arc surface to achieve a smooth transition connection. Of course, the connection between the two first side surfaces 111 can also be an arc-shaped surface. In the longitudinal direction of the heat dissipation channel 3, the first portion 11 is located upstream of the second portion 12, that is, the first portion 11 is located on the front side of the second portion 12. When the cooling medium flows along the longitudinal direction of the heat dissipation channel 3, the first portion 11 first contacts the cooling medium, and the cooling medium contacts the second portion 12 after flowing through the first portion 11.

[0050] As shown in Figure 1 , in some embodiments, along the extension direction of the heat sink 1, the length of the first portion 11 is smaller than the length of the second portion 12, and the first portion 11 is located upstream of the second portion 12. This arrangement allows the cooling medium to flow through the first portion 11 before contacting the second portion 12. This allows the cooling medium to flow along the second side surface 121 for a longer distance, effectively preventing boundary layer separation and turbulence on the second side surface 121.

[0051] Specifically, the length of the first portion 11 is smaller than the length 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 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.

[0052] As shown in Figures 1 and 2, in some embodiments, the heat sink 1 is symmetrical about a first plane 4 along the width of the heat dissipation channel 3. The first plane 4 is perpendicular to the width of the heat dissipation channel 3 and passes through the center point of the heat sink 1. This arrangement ensures that when the cooling medium flows through the heat sink 1, the cooling medium flows at a consistent speed across the two streamlined curved surfaces of the heat sink 1. This results in a consistent pressure of the cooling medium on the two streamlined curved surfaces across the width of the heat sink 1, improving the stability of the heat sink 1 in the cooling medium.

[0053] Specifically, as shown in Figures 1 and 2, 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 curved surfaces of the heat dissipation body 1 are symmetrical about the first plane 4 in the width direction of the heat dissipation channel 3.

[0054] In addition, since the first plane 4 is perpendicular to the width 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, and the cooling medium flows along the extension direction of the heat dissipation channel 3, the first plane 4 can be regarded as parallel to the flow direction of the cooling medium.

[0055] As shown in Figure 2 , in some embodiments, the heat sink 1 is symmetrical about a 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 passes through the center point of the heat sink 1. This arrangement makes the heat sink 1 suitable for use in heat sinks that allow bidirectional flow of the cooling medium, thereby expanding the range of applications of the heat sink 1.

[0056] Specifically, as shown in Figure 2, 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 sink 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 sink 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 sink 1. The heat sink 1 is symmetrical about the second plane 5 in the length direction of the heat dissipation channel 3, so that when the cooling medium moves from left to right and from right to left in Figure 2, 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.

[0057] As shown in Figure 3, in some embodiments, the heat dissipation structure further includes a base 13, to which the heat sink 1 is connected. The base 13 is configured to connect to the inner wall of the heat dissipation channel 3 of the heat sink. In this configuration, the base 13 can serve as a structure for connecting the heat sink 1 to the inner wall of the heat dissipation channel 3 of the heat sink, thereby improving the stability of the heat sink 1 within the heat dissipation channel 3.

[0058] Specifically, the base 13 can be a block structure with an arc-shaped surface. Of course, the two opposing side surfaces of the base 13 along the width direction of the heat sink 1 can also be arc-shaped. The projection of the heat sink 1 on the base 13 can be located within the base 13 in the height direction of the heat sink 1. The heat sink 1 and base 13 can be an integrated structure, with the base 13 mounted on the inner wall of the heat dissipation channel 3 of the radiator. Alternatively, the heat sink 1 and base 13 can be integrally manufactured with the heat dissipation channel 3 of the radiator.

[0059] The present application also provides a heat sink, comprising a housing 2 and a heat dissipation structure as described above. The housing 2 is provided with a heat dissipation channel 3, and the heat sink 1 is disposed in the heat dissipation channel 3. Specifically, the housing 2 can be rectangular or other shaped. The housing 2 extends in one direction, the extension direction of the housing 2 being the length direction of the housing 2, and the width direction of the housing 2 being perpendicular to the length direction of the housing 2.

[0060] 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 choose 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 choose to enter the heat dissipation channel 3 from the second inlet and outlet 22 and be discharged from the first inlet and outlet 21.

[0061] The heat dissipation channel 3 can be configured to extend along the length of the housing 2. Alternatively, the housing 2 can be configured to extend along the width of the heat dissipation channel 3. Alternatively, when the heat dissipation channel 3 is curved, at least a portion of the heat dissipation channel 3 can extend along the length of the housing 2. The heat sink 1 can be configured to be disposed within the heat dissipation channel 3. When the heat dissipation channel 3 is a straight channel, the length of the heat sink 1 can be configured to coincide with the extension direction of the heat dissipation channel 3. When the heat dissipation channel 3 is a curved channel, the heat sink 1 can be configured to be disposed within the portion of the curved heat dissipation channel 3 that extends in a straight direction, with the length of the heat sink 1 coinciding with the extension direction of the portion of the straight heat dissipation channel 3 in which the heat sink 1 is located. This allows the cooling medium to flow along the heat dissipation channel 3, thereby reducing the flow resistance of the cooling medium through the heat sink 1.

[0062] 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, avoiding the heat sink 1 being too large and occupying the space in the heat dissipation channel 3, and avoiding the heat sink 1 being too small and resulting in poor heat dissipation effect.

[0063] 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.

[0064] By arranging 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.

[0065] In some embodiments, the heat sink further includes electronic components, and the heat sink 1 is positioned in a location corresponding to the electronic components. The electronic components may be chips, sensors, relays, transistors, etc., and the specific type is not limited in this embodiment. The heat sink 1 is positioned in a location corresponding to the electronic components, enabling efficient heat dissipation of the electronic components, thereby providing a suitable temperature environment for the electronic components and further ensuring their normal operation.

[0066] As shown in Figures 3, 4, and 5, in some embodiments, the heat dissipation channel 3 includes at least two straight segments 31 and at least one curved segment 32. The multiple straight segments 31 extend along the extension direction of the housing 2 and are spaced apart along the width direction of the housing 2. Adjacent straight segments 31 are connected by a curved segment 32, and the heat sink 1 is disposed within the straight segments 31. This arrangement increases the overall volume of the heat dissipation channel 3, allowing the heat dissipation channel 3 to accommodate more cooling medium flow and improving the heat exchange effect of the cooling medium flowing through the heat dissipation channel 3 on the housing 2.

[0067] 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. The end of one straight segment 31 away from the bent segment 32 is connected to the outside of the shell 2, and the end of the other straight segment 31 away from the bent segment 32 is connected to the outside of the shell 2.

[0068] Of course, the heat dissipation channel 3 can also be bent multiple times to form multiple straight segments 31 and multiple bent segments 32, where the number of bent segments 32 is one less than the number of straight segments 31. 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. 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.

[0069] The above-mentioned heat sink 1 can be selected in multiple quantities, and multiple heat sinks 1 can be set in each straight line segment 31, or 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.

[0070] 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.

[0071] 3 , 4 , and 5 , in some embodiments, a guide plate 33 is provided within at least the bent section 32. The shape of the guide plate 33 matches the shape of the inner wall of the bent section 32. This configuration allows the guide plate 33 to guide the flow within the bent section 32, preventing the cooling medium from directly impacting the inner wall of the bent section 32 of the heat dissipation channel 3, thereby preventing the cooling medium from directly impacting the inner wall of the bent section 32 and causing turbulence, which would increase resistance to the movement of the cooling medium within the heat dissipation channel 3.

[0072] Specifically, the guide plate 33 can be a curved panel, parallel to the sidewall of the bent section 32. This allows the guide plate 33 to guide the flow within the bent section 32, preventing the cooling medium from directly impacting the inner wall of the bent section 32 of the heat dissipation channel 3 and causing turbulence. The number of guide plates 33 can be multiple, with the guide plates 33 spaced apart in the bent section 32, along the inner wall of one side of the bent section 32 toward the inner wall of the other side.

[0073] 3, 4, and 5, in some embodiments, there are multiple heat sinks 1, and the multiple heat sinks 1 are spaced apart within the heat dissipation channel 3 along the extension direction of the heat dissipation channel 3. This arrangement enables the multiple heat sinks 1 to exchange heat within the heat dissipation channel 3, and the spacing of the multiple heat sinks 1 can prevent mutual interference between the multiple heat sinks 1, thereby improving the heat dissipation effect of the radiator.

[0074] Specifically, the number of the heat sinks 1 may be ten, or three or five.

[0075] 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 in a straight segment 31 to form a heat sink group. A heat sink group can be set in each straight segment 31. Alternatively, one heat sink 1 can be set in each straight segment 31. Alternatively, it is not limited to setting one heat sink 1 or one heat sink group in one straight segment of multiple straight segments 31.

[0076] 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 the distance between the multiple heat sinks 1 being 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 the distance between the multiple heat sinks 1 being too small. When the heat sink 1 and the heat dissipation channel 3 are manufactured by integrated processing and molding, 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.

[0077] When the radiator provided by the embodiment of the present application 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 the cooling medium flows in the heat dissipation channel 3, it flows through multiple heat sinks 1. 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.

[0078] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any 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 that includes 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 presence of other identical elements in the process, method, article or device that includes the elements.

[0079] The foregoing description is intended only to provide specific embodiments of the present application, which will enable those skilled in the art to understand and implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, but is intended to be construed in the broadest manner 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; 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, and the arc-shaped surfaces extend along the flow direction of the cooling medium, so that the heat sink forms a streamlined structure extending along the flow direction of the cooling medium.

2. The heat dissipation structure according to claim 1, characterized in that: The length of the heat sink is greater than the width of the heat sink; The length dimension of the heat sink is the maximum distance dimension of the heat sink along the flow direction of the cooling medium; the width dimension of the heat sink is the maximum distance dimension of the heat sink along the flow direction perpendicular to the cooling medium.

3. The heat dissipation structure according to claim 1 or 2, characterized in that: The heat sink comprises a first part and a second part connected to each other, and the cooling medium flows through the first part and the second part successively; Along a direction perpendicular to the flow of the cooling medium, the first portion includes two first side surfaces that are opposite to each other, and the second portion includes two second side surfaces that are opposite to each other, and the first side surfaces and the second side surfaces that are located on the same side of the heat sink form the arcuate surface; The curvature of the first side surface is greater than the curvature of the second side surface.

4. The heat dissipation structure according to claim 3, 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. The first portion is located on the upstream side of the second portion.

5. The heat dissipation structure according to claim 3, characterized in that: The length dimension of the first portion is greater than the width dimension of the first portion, and the length dimension of the second portion is greater than the width dimension of the second portion; The length dimension of the first portion is the maximum distance between the two ends of the first portion along the flow direction of the cooling medium; the width dimension of the first portion is the maximum distance between the two first side surfaces of the first portion perpendicular to the flow direction of the cooling medium; The length dimension of the second part is the maximum distance dimension between the two ends of the second part along the flow direction of the cooling medium; the width dimension of the second part is the maximum distance dimension between the two second side surfaces of the second part perpendicular to the flow direction of the cooling medium.

6. The heat dissipation structure according to claim 3, characterized in that: Along the extension direction of the heat sink, the length of the first portion is smaller than the length of the second portion, and the first portion is located on the upstream side of the second portion.

7. The heat dissipation structure according to any one of claims 1 to 6, characterized in that: The width direction of the heat sink is symmetrical about a first plane. The first plane is parallel to the flow direction of the cooling medium. The first plane passes through the center point of the heat sink.

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

9. A radiator, characterized in that: It comprises a shell and the heat dissipation structure according to any one of claims 1 to 8, wherein a heat dissipation channel is provided in the shell, and the heat dissipation body is arranged in the heat dissipation channel.

10. The radiator according to claim 9, characterized in that It also includes electronic components, and the heat sink is arranged at a position corresponding to the electronic components.

11. The radiator according to claim 9, characterized in that The heat dissipation channel includes at least two straight segments and at least one bent segment. The multiple straight segments extend along the extension direction of the shell, and the multiple 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.

12. The radiator according to claim 11, characterized in that At least a guide plate is provided in the bending section, and the shape of the guide plate is adapted to the shape of the inner wall of the bending section.

13. The radiator according to any one of claims 9 to 12, characterized in that: There are multiple heat sinks, and the multiple heat sinks are arranged in the heat dissipation channel at intervals. The cooling medium flows through the multiple heat sinks in sequence.

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