Radiator, radiating device and electric equipment
By designing a radiator with stacked fin clusters and bent fin extensions, the problem of low heat dissipation efficiency in the prior art is solved, multi-directional airflow and enhanced turbulence intensity are achieved, and the heat dissipation effect is improved.
Patent Information
- Application Number
- CN202510807330.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2025-11-04
AI Technical Summary
Existing radiators have low heat dissipation efficiency, and airflow can only flow along the length of the fins, failing to effectively utilize the ambient airflow above for heat dissipation.
Design a radiator in which fin clusters are stacked and the fins are bent and extended to form flow channels with varying cross-sectional dimensions. Adjacent fin clusters are interconnected to form a pressure difference, and the airflow flows in multiple directions within the radiator, enhancing the turbulence intensity and heat transfer area.
It improves heat dissipation efficiency. The airflow flows in multiple directions within the radiator, enhancing the heat transfer between the airflow and the fin surface, thus improving the overall heat dissipation effect.
Smart Images
Figure CN120897398A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of heat sinks, in particular to a heat sink, a heat dissipation device and an electric equipment. BACKGROUND
[0002] When the electric equipment is running, it needs to be cooled.
[0003] In the prior art, the heat dissipation device includes a heat sink, the heat sink has a plurality of straight fin-shaped fins arranged in sequence and at intervals, and air with a relatively low temperature flows linearly between the fins along the length direction of the fins to achieve heat dissipation.
[0004] However, the heat dissipation efficiency of the existing heat sink is low. SUMMARY
[0005] The heat sink, the heat dissipation device and the electric equipment provided by the embodiments of the present application can improve the heat dissipation efficiency of the heat sink.
[0006] In a first aspect, the embodiments of the present application provide a heat sink, comprising: a base, the base being configured to be connected with a heat source;
[0007] a plurality of fin clusters stacked on the base;
[0008] The fin cluster includes a plurality of fin pieces arranged in sequence and at intervals, the fin pieces are curved and extended, and adjacent two fin pieces are oppositely arranged to form a flow channel with a variable cross-sectional size along the extension direction of the fin pieces;
[0009] In the adjacent two fin clusters, the fin pieces of one are at least partially staggered with the fin pieces of the other, so that the flow channels of the two fin clusters are communicated along the stacking direction.
[0010] In a possible implementation, the heat sink provided by the embodiments of the present application includes a curved portion, and the curved portion is arranged in sequence and at intervals along the extension direction of the fin piece.
[0011] In a possible implementation, the heat sink provided by the embodiments of the present application includes a curved portion, and the curved portion is arranged in sequence and at intervals along the extension direction of the fin piece.
[0012] In a possible implementation, the heat sink provided by the embodiments of the present application includes a curved portion, and the curved portion is arranged in sequence and at intervals along the extension direction of the fin piece.
[0013] In a possible implementation, the heat sink provided by the embodiments of the present application includes a curved portion, and the curved portion is arranged in sequence and at intervals along the extension direction of the fin piece.
[0014] In a possible implementation, the heat sink provided by the embodiments of the present application is characterized in that, in the two adjacent fin clusters, the fin pieces of one are one-to-one stacked with the fin pieces of the other.
[0015] In the two fin pieces stacked correspondingly, the convex side of the bending part faces the opposite direction.
[0016] In a possible implementation, the heat sink provided by the embodiments of the present application is characterized in that, in the two adjacent fin clusters, the low-pressure section of the flow channel of one is in communication with the high-pressure section of the flow channel of the other.
[0017] In a possible implementation, the heat sink provided by the embodiments of the present application is characterized in that, the fin piece further comprises a straight part, and the two adjacent bending parts in the same fin piece are connected through the straight part.
[0018] In a possible implementation, the heat sink provided by the embodiments of the present application is characterized in that, in the two adjacent fin pieces of the same fin cluster, the straight parts correspond to each other in pairs to form an equal-pressure section of the flow channel, and the equal-pressure section is in communication with the high-pressure section and the low-pressure section.
[0019] In a possible implementation, the heat sink provided by the embodiments of the present application is characterized in that, along the extension direction of the fin piece, the width of the equal-pressure section is greater than or equal to twice the minimum width of the low-pressure section.
[0020] In a possible implementation, the heat sink provided by the embodiments of the present application is characterized in that, the base comprises:
[0021] The contact part is used for connecting with the heat source, and the fin cluster is arranged on the contact part.
[0022] The side plate part is arranged on the contact part and located on opposite sides in the extension direction of the flow channel.
[0023] In a second aspect, the embodiments of the present application provide a heat dissipation device, comprising a device body and a heat sink arranged on the device body.
[0024] In a third aspect, the embodiments of the present application provide an electric equipment, comprising an equipment body and a heat sink arranged on the equipment body.
[0025] Or, comprising an equipment body and a heat dissipation device arranged on the equipment body.
[0026] The radiator, the heat dissipation device and the electric equipment provided by the embodiments of the present application, the radiator comprises a base and a fin cluster arranged on the base, the fin cluster comprises at least two fin clusters, the fin clusters are stacked, a plurality of fin pieces of each fin cluster are bent and extended, and two adjacent fin pieces are arranged oppositely to form a flow channel with varying cross-sectional dimensions. The variable-diameter flow channel can improve the turbulent intensity of the airflow and the heat exchange area along the flow path, so as to improve the heat dissipation effect of the radiator. In the present application, the fin pieces of the two adjacent fin clusters are at least partially staggered, and the cross-sectional dimensions of the flow channels vary, so that the cross-sectional dimensions of the two flow channel communication parts are different when the flow channels in the two fin clusters are communicated in the stacking direction, thereby forming a pressure difference. In this way, when the airflow flows in the radiator, it can not only flow in any flow channel in a single fin cluster along the extension direction of the flow channel, but also flow between the flow channels of the two adjacent fin clusters in the stacking direction of the fin cluster, thereby increasing the flow direction of the airflow, making the radiator dissipate heat through the airflow from multiple directions, and improving the heat dissipation efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0027] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.
[0028] Figure 1 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure.
[0029] Figure 2 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure. Figure 1 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure.
[0030] Figure 3 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure. Figure 1 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure.
[0031] Figure 4 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure. Figure 3 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure.
[0032] Figure 5 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure. Figure 4 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure.
[0033] Figure 6 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure. Figure 4 A structural schematic diagram of the radiator provided by the embodiments of the present application is shown in the figure.
[0034] BRIEF DESCRIPTION OF DRAWINGS
[0035] 100 - base; 110 - contact part; 120 - side plate part;
[0036] 200 - fin cluster; 210 - fin piece; 211 - bending part; 212 - straight part;
[0037] 300 - flow channel; 310 - high pressure section; 311 - high pressure diffuser section; 312 - high pressure converging section; 320 - low pressure section; 321 - low pressure converging section; 322 - low pressure diffuser section; 330 - constant pressure section.
[0038] The specific embodiments of the application have been shown by the above figures, which will be described in more detail hereinafter. The figures and the written description are not intended to limit the scope of the concept of the application in any way, but to illustrate the concept of the application to a person skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0039] In order to make the objects, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application. The embodiments described below and the features in the embodiments can be combined with each other without conflict.
[0040] In the prior art, the heat dissipation device includes a heat sink, the heat sink has a plurality of straight fin-shaped fins arranged in sequence and at intervals, and air at a relatively low temperature flows linearly between the fins in the length direction of the fins to achieve heat dissipation.
[0041] However, such an arrangement makes the air flow only flow from one end of the fin to the other end, that is, from one side of the heat sink to the other side, and the air in the environment above the heat sink cannot enter the fin to participate in heat dissipation, so that the heat dissipation efficiency of the heat sink is relatively low.
[0042] In order to overcome the defects in the prior art, the heat sink, the heat dissipation device and the electric equipment provided by the embodiments of the application, the heat sink includes a base and a fin cluster arranged on the base, the fin cluster includes at least two fin clusters, the fin clusters are stacked, a plurality of fin pieces of each fin cluster are bent and extended, and adjacent two fin pieces are arranged oppositely to form a flow channel with varying cross-sectional dimensions. The variable-diameter flow channel can improve the turbulence intensity of the air flow and the along-path heat exchange area, so as to improve the heat dissipation effect of the heat sink. Among them, the fin pieces of the adjacent two fin clusters are at least partially staggered, and the cross-sectional dimensions of the flow channels change, so that when the flow channels in the two fin clusters are connected in the stacking direction, the cross-sectional dimensions of the connected parts of the two flow channels are also different, thereby forming a pressure difference. In this way, when the air flow flows in the heat sink, it not only flows in any flow channel in a single fin cluster along the extension direction of the flow channel, but also flows between the flow channels of the adjacent two fin clusters along the stacking direction of the fin cluster, thereby increasing the flow direction of the air flow, making the heat sink dissipate heat through the air flow from multiple directions, and improving the heat dissipation efficiency.
[0043] The application will be described in detail below with reference to the drawings, so that those skilled in the art can more clearly and specifically understand the content of the application.
[0044] Referring to Figures 1 to 6 As shown in the drawings, the application provides a radiator, comprising: a base 100, the base 100 is used for connecting with a heat source;
[0045] A plurality of fin clusters 200 are stacked on the base 100.
[0046] The fin cluster 200 comprises a plurality of fin pieces 210 arranged in sequence and at intervals, the fin pieces 210 extend in a curved manner, and adjacent two fin pieces 210 are arranged in opposition, forming a flow channel 300 with varying cross-sectional dimensions along the extension direction of the fin pieces 210.
[0047] In adjacent two fin clusters 200, the fin pieces 210 of one are at least partially staggered with the fin pieces 210 of the other, so that the flow channels 300 of the two fin clusters 200 are communicated along the stacking direction.
[0048] Figures 1 to 6 X, Y and Z are perpendicular to each other in a three-dimensional space.
[0049] It can be understood that the base 100 is used for being attached or abutting on the heat source, so that the heat of the heat source can be transmitted to the base 100. The heat source can be the position with the highest heat on the device or component to be cooled, or the mounting position on the device or component to be cooled, which is pre-set for the base 100, and the application does not limit this.
[0050] The fin cluster 200 is arranged in at least two, one of which is directly connected with the base 100, and the rest of the fin clusters 200 are stacked in sequence along the Z direction of the base 100. Each fin cluster 200 comprises a plurality of fin pieces 210 arranged in sequence and at intervals in the Y direction or the X direction in the X-Y plane, so that there is a gap between the adjacent two fin pieces 210, which forms a flow channel 300 for the airflow to flow along the extension direction of the fin pieces 210.
[0051] When stacked, the flow channels 300 in each fin cluster 200 can be uniformly extended in the X direction or the Y direction, or the fin clusters 200 can be extended in different directions in the X-Y plane, and the application does not limit this.
[0052] Since the fin pieces 210 extend in a curved manner, and the adjacent two fin pieces 210 in the same fin cluster 200 are arranged in opposition, i.e. the adjacent two fin pieces 210 are symmetrical along the median line between them, and the curves of the two fin pieces 210 are opposite, so that the cross-sectional dimension of the flow channel 300 along the extension direction of the fin pieces 210 varies.
[0053] Therefore, when the fin pieces 210 of the adjacent two fin clusters 200 are at least partially staggered, the flow channels 300 in the two fin clusters 200 are communicated, and the cross-sectional sizes of the communicated parts of the two flow channels 300 are different, so that a pressure difference is formed. When the air flow in the flow channels 300, the air flow can flow from the communicated part to other flow channels 300 under the action of the pressure difference. Since the fin clusters 200 are stacked along the Z direction, i.e., the height direction of the heat sink, the air flow can flow along the height direction of the heat sink, and then the heat sink exchanges heat with the air above the heat sink.
[0054] Therefore, the heat sink provided by the embodiment of the present application comprises a base 100 and fin clusters 200 arranged on the base 100. The fin clusters 200 comprise at least two fin clusters 200, and the fin clusters 200 are stacked. The plurality of fin pieces 210 of each fin cluster 200 are bent and extended. The adjacent two fin pieces 210 are oppositely arranged to form flow channels 300 with varying cross-sectional sizes. The flow channels 300 with varying diameters can improve the turbulence intensity of the air flow and the along-path heat exchange area, so as to improve the heat dissipation effect of the heat sink. The fin pieces 210 of the adjacent two fin clusters 200 are at least partially staggered, and the cross-sectional sizes of the flow channels 300 vary. When the flow channels 300 in the two fin clusters 200 are communicated along the stacking direction, the cross-sectional sizes of the communicated parts of the two flow channels 300 are different, so that a pressure difference is formed. Therefore, when the air flow flows in the heat sink, the air flow can not only flow along the extension direction of any flow channel 300 in a single fin cluster 200, but also flow along the stacking direction of the fin clusters 200 between the flow channels 300 of the adjacent two fin clusters 200. The flow direction of the air flow is increased, the heat sink dissipates heat through the air flow from multiple directions, and the heat dissipation efficiency is improved.
[0055] In some embodiments, referring to Figures 1 to 6 As shown, the fin piece 210 comprises a plurality of bending parts 211 arranged in sequence along the extension direction of the fin piece 210.
[0056] It can be understood that the plurality of bending parts 211 arranged on the fin piece 210 can make the fin piece 210 have a plurality of bending structures, so that the heat dissipation area is larger, and then the flow channels 300 between the adjacent two fin pieces 210 form a plurality of variable-diameter parts, which can make the flow velocity, flow direction and other flow characteristics of the air flow flowing through the flow channels 300 change multiple times, so as to help to enhance the disturbance and mixing of the air flow and improve the heat dissipation effect.
[0057] Further, referring to Figures 1 to 6 As shown, in the adjacent two fin pieces 210 of the same fin cluster 200, the concave sides of the bending parts 211 of the two fin pieces 210 are opposite to each other to form a high-pressure section 310 of the flow channel 300, and the convex sides of the bending parts 211 of the two fin pieces 210 are opposite to each other to form a low-pressure section 320 of the flow channel 300.
[0058] The concave side of the bending part 211 of one fin piece 210 is opposite to the concave side of the bending part 211 of the other fin piece 210, the interval between the two bending parts 211 is large, so that the cross-sectional dimension of the flow channel 300 is large, forming the high-pressure section 310 of the flow channel 300, and the convex side of the bending part 211 of one fin piece 210 is opposite to the convex side of the bending part 211 of the other fin piece 210, the interval between the two bending parts 211 is small, so that the cross-sectional dimension of the flow channel 300 is small, forming the low-pressure section 320 of the flow channel 300.
[0059] When the gas flow flows from the high-pressure section 310 to the low-pressure section 320 in the flow channel 300, due to the pressure difference, a local high-speed flow and vortex will be formed, the turbulence degree of the gas flow will be significantly enhanced, the boundary layer of the gas flow will be destroyed, the mixing of the molecules inside the fluid will be more sufficient, and thus the heat transfer efficiency between the gas flow and the surface of the fin piece 210 is improved.
[0060] And, referring to Figures 1 to 6 It can be seen that the convex sides of the adjacent two bending parts 211 in the same fin piece 210 face opposite directions.
[0061] It can be understood that the adjacent two bending parts 211 of the same fin piece 210 are alternately convex to the two sides, so that the fin piece 210 forms a periodic structure similar to a chord curve, and the shape of the flow channel 300 changes relatively smoothly, compared with some abrupt structures, the gas flow can change direction and speed more smoothly when flowing in such a flow channel 300, and the energy loss caused by the sharp change of the flow direction is reduced, thereby reducing the flow resistance.
[0062] And the maximum cross-sectional dimension of the high-pressure section 310 of the flow channel 300 and the minimum cross-sectional dimension of the low-pressure section 320 have a large difference, which will make the gas flow experience acceleration and deceleration during the flow process, significantly enhance the disturbance of the gas flow, destroy the boundary layer of the gas flow, and make the gas flow contact with the fin surface more fully, thereby improving the heat transfer coefficient and enhancing the heat transfer effect.
[0063] Further, in this way, the high-pressure section 310 and the low-pressure section 320 in a single flow channel 300 can be arranged alternately along the Y direction, and in the same fin cluster 200, the starting ends of the flow channels 300 correspond to the high-pressure section 310 and the low-pressure section 320 alternately along the X direction. The starting ends of the flow channels 300 correspond to the high-pressure section 310 and the low-pressure section 320 alternately along the X direction, so that the fluid flow between the adjacent flow channels 300 affects each other, further enhancing the overall fluid disturbance.
[0064] In specific implementation, referring to Figures 1 to 5 It can be seen that the bending part 211 is curved in an arc line shape or a broken line shape.
[0065] It can be understood that the curved arc is relatively smooth, and when the airflow flows through the curved portion 211, the flow direction can be changed more naturally, reducing the vortex and energy loss caused by the sharp change of the flow direction, thereby reducing the flow resistance of the fluid.
[0066] The angle of the curved broken line changes more obviously, and when the fluid flows through the broken line, strong disturbance and vortex are generated. These disturbances can effectively destroy the laminar boundary layer of the fluid, make the molecules inside the fluid mix more fully, and enhance the heat transfer between the fluid and the surface of the fin. For example, the curved broken line can be a V-shaped curve or a trapezoidal curve, and the application does not limit this.
[0067] In some embodiments, referring to Figures 1 to 5 As shown, in the two adjacent fin clusters 200, the fin pieces 210 of one are one-to-one stacked with the fin pieces 210 of the other.
[0068] Among the two corresponding stacked fin pieces 210, the convex side of the curved portion 211 faces the opposite direction.
[0069] In the two adjacent fin clusters 200, the fin pieces 210 of each are one-to-one stacked, which can make the fin pieces 210 reliable and ensure the stability of the stacked fin clusters 200.
[0070] The convex side of the curved portion 211 on the two corresponding stacked fin pieces 210 faces the opposite direction, that is, the convex side of the curved portion 211 on the lower side in the Z direction faces the positive direction of the X direction, and the convex side of the curved portion 211 on the upper side in the Z direction faces the negative direction of the X direction, so that the two stacked fin pieces 210 are staggered by the different directions of the curved portions 211.
[0071] In this way, the high-pressure section 310 of the flow channel 300 of one fin cluster 200 is staggered with the low-pressure section 320 of the flow channel 300 of the other fin cluster 200, and when the airflow flows through the staggered fin pieces 210 stacked along the Z direction, due to the opposite directions of the convex sides of the upper and lower curved portions 211 and the incompressibility of the low-speed airflow, the flow direction of the airflow will spontaneously deviate to the low-pressure section 320 and deviate to the positive direction or negative direction of the X direction, forming complex turbulent flow and further expanding the heat exchange area between the radiator and the airflow.
[0072] Specifically, referring to Figures 1 to 5 As shown, in the two adjacent fin clusters 200, the low-pressure section 320 of the flow channel 300 of one is communicated with the high-pressure section 310 of the flow channel 300 of the other.
[0073] Connecting the high-pressure section 310 and the low-pressure section 320 provides a channel for airflow to transfer between adjacent fin clusters 200. The airflow in the high-pressure section 310 automatically flows to the low-pressure section 320, making the airflow path longer and the turbulence intensity greater in the entire system, thus improving the heat dissipation capacity of the radiator.
[0074] When the airflow reaches the outermost fin cluster 200 in the Z direction, located in the high-pressure section 310 where the flow channel 300 is directly adjacent to the ambient airflow, some of the airflow that has absorbed the heat from the fins 210 will flow out of the high-pressure section 310 to mix with the ambient airflow for cooling. After the mixed and cooled airflow passes near the low-pressure section 320, it will be drawn back into the fin cluster 200 under pressure, enabling the radiator to achieve heat exchange in the Z direction.
[0075] Furthermore, in some embodiments, reference is made to Figures 1 to 6 As shown, the fin member 210 also includes a straight portion 212, and two adjacent curved portions 211 in the same fin member 210 are connected by the straight portion 212.
[0076] The straight section 212 provides a stable connection to the adjacent curved sections 211, allowing for a smooth transition between adjacent curved sections 211 and making the entire fin member 210 structure more stable. When the fin clusters 200 are stacked, because the convex sides of the curved sections 211 of the fin members 210 in the upper fin cluster 200 and the curved sections 211 of the fin members 210 in the lower fin cluster 200 face opposite directions, the connection portion is small and the stacking stability is low when the fin members 210 are only connected by the curved sections 211. However, by providing the straight section, the fin members 210 can be connected through the straight section during stacking, increasing the volume of the connection portion and thus ensuring the reliability of the fin cluster 200 stacking.
[0077] Furthermore, referring to Figures 1 to 6 As shown, in two adjacent fins 210 of the same fin cluster 200, the straight portions 212 correspond to each other to form the isobaric section 330 of the flow channel 300, and the isobaric section 330 connects the high-pressure section 310 and the low-pressure section 320.
[0078] When the fluid flows through the finned member 210, the straight section 212 can play a certain role in buffering and guiding. When the fluid enters the low-pressure section 320 from the high-pressure section 310, or enters the high-pressure section 310 from the low-pressure section 320, the isobaric section 330 can make the airflow velocity and pressure distribution relatively stable, so that the fluid is more evenly distributed on the fin surface, improving the uniformity and efficiency of heat transfer.
[0079] And with this, the high-pressure section 310 can be divided into a high-pressure diffuser section 311 and a high-pressure convergent section 312, the large-diameter end of the high-pressure diffuser section 311 is connected with the large-diameter end of the high-pressure convergent section 312, the low-pressure section 320 is divided into a low-pressure convergent section 321 and a low-pressure diffuser section 322, the small-diameter end of the low-pressure convergent section 321 is connected with the small-diameter end of the low-pressure diffuser section 322, in this way, the constant-pressure section 330 connects the small-diameter sections of the high-pressure diffuser section 311 and the high-pressure convergent section 312, and connects the large-diameter ends of the low-pressure convergent section 321 and the low-pressure diffuser section 322, so that the section division of the flow channel 300 is more detailed, which is convenient for ensuring that the airflow and the fin member 210 are fully heat exchanged.
[0080] In this way, referring to Figure 6 , the airflow direction is the Y direction in the figure, when the airflow flows into the constant-pressure section 330, since there is no obvious change in the cross section of the flow channel 300, the air flow rate is basically unchanged, and the static pressure of the airflow is basically equal to the static pressure of the airflow outside the radiator; when the airflow flows into the high-pressure diffuser section 311, the width of the flow channel 300 gradually increases, the airflow velocity gradually decreases, and the static pressure of the airflow is greater than and increasingly greater than the static pressure of the ambient airflow; when the airflow flows into the high-pressure convergent section 312, the width of the flow channel 300 gradually decreases, the airflow velocity gradually increases, and the static pressure of the airflow is greater than the static pressure of the ambient airflow but gradually decreases; when the airflow flows into the low-pressure convergent section 321, the width of the flow channel 300 gradually decreases, the airflow velocity gradually increases, and the static pressure of the airflow is less than and increasingly less than the static pressure of the ambient airflow; when the airflow flows into the low-pressure diffuser section 322, the width of the flow channel 300 gradually increases, the airflow velocity gradually decreases, and the static pressure of the airflow is less than but gradually increases than the static pressure of the ambient airflow.
[0081] In specific implementation, referring to Figure 6 , along the extension direction of the fin member 210, the width B of the constant-pressure section 330 is greater than or equal to twice the minimum width A of the low-pressure section 320.
[0082] When the width B of the constant-pressure section 330 and the minimum width A of the low-pressure section 320 are in this proportion, the wall surface temperature of the fin member 210 can be significantly reduced. And the width setting of the constant-pressure section 330 and the low-pressure section 320 can effectively control the pressure difference in the flow channel 300, and further make the heat exchange between the airflow and the fin member 210 more sufficient and efficient, which helps to improve the heat exchange efficiency.
[0083] And since the convex side of the curved portion 211 faces the opposite direction, when the minimum width of the low-pressure section 320 is determined, the maximum width of the high-pressure section 310 can also be determined, so that when the width B of the constant-pressure section 330 and the minimum width A of the low-pressure section 320 are determined, the setting pitch of each fin member 210 can be uniform.
[0084] In addition, referring to Figures 1 to 3 , the base 100 includes:
[0085] The contact part 110 is used for connecting with the heat source, and the fin cluster 200 is arranged on the contact part 110.
[0086] The side plate part 120 is arranged on the contact part 110 and located at opposite sides in the extending direction of the flow channel 300.
[0087] The contact part 110 is directly connected with the heat source, which can minimize the thermal resistance and make the heat generated by the heat source quickly conduct to the contact part 110. Since the fin cluster 200 is arranged on the contact part 110, the heat can be quickly transferred from the contact part 110 to the fin cluster 200, which guarantees the stable operation of the heat source equipment.
[0088] The side plate part 120 is located at opposite sides in the extending direction of the flow channel 300, which can provide good support and protection for the contact part 110 and the fin cluster 200. They can prevent the contact part 110 and the fin cluster 200 from being deformed or damaged when subjected to external force impact or vibration, which enhances the structural stability of the whole base 100 and prolongs the service life of the heat sink.
[0089] The embodiment of the present application further provides a heat dissipation device, which comprises a device body and a heat sink arranged on the device body.
[0090] The heat sink has been described in the above embodiment, and thus will not be described here again.
[0091] The embodiment of the present application further provides an electric equipment, which comprises an equipment body and a heat sink arranged on the equipment body.
[0092] Alternatively, the electric equipment comprises an equipment body and a heat dissipation device arranged on the equipment body.
[0093] The embodiment of the present application provides a heat dissipation device and an electric equipment. The heat dissipation device comprises a base 100 and a fin cluster 200 arranged on the base 100. The fin cluster 200 comprises at least two fin clusters 200. The fin clusters 200 are stacked. A plurality of fin pieces 210 of each fin cluster 200 are bent and extended. Adjacent two fin pieces 210 are oppositely arranged, so as to form flow channels 300 with variable cross-sectional dimensions. The flow channels 300 with variable cross-sectional dimensions can improve the turbulent intensity of airflow and the heat exchange area along the flow path, so that the heat dissipation effect of the heat dissipation device is improved. Wherein, the fin pieces 210 of the adjacent two fin clusters 200 are at least partially staggered, and the cross-sectional dimensions of the flow channels 300 are variable. When the flow channels 300 in the two fin clusters 200 are communicated along the stacking direction, the cross-sectional dimensions of the communicated parts of the two flow channels 300 are also different, so that the pressure difference is formed. Therefore, when the airflow flows in the heat dissipation device, the airflow can not only flow in any flow channel 300 in a single fin cluster 200 along the extension direction of the flow channel 300, but also flow between the flow channels 300 of the adjacent two fin clusters 200 along the stacking direction of the fin clusters 200, so that the flow direction of the airflow is increased. The heat dissipation device dissipates heat through the airflow from multiple directions, so that the heat dissipation efficiency is improved.
[0094] It should be noted that the terms "one embodiment", "an embodiment", "certain embodiments", "some embodiments", and the like, in the specification are not necessarily referring to the same embodiment. Furthermore, the terms "comprise", "comprising", "include", "including", "contain", "containing", "have", "having", "carry", "carrying", "comprised of", "comprising of", "including of", "consist of", "consisting of", "consists of", and the like, are not necessarily limited to consisting of the described features. Rather, they are intended to cover both the respective features and their equivalents.
[0095] In general, the terms used in the specification should be understood to be used in their broadest, ordinary sense unless otherwise expressly specified. For example, the terms "or", "and", and "both" are used in their inclusive sense (and not in their exclusive sense) unless otherwise expressly specified. Similarly, the term "comprises" is used in its inclusive sense (and not in its exclusive or exhaustive sense) unless otherwise expressly specified. The term "comprising" is used to include, but not to exclude, the presence of other features, structures, or characteristics. The term "comprising" is used to include the presence of other features, structures, or characteristics, but not to exclude the presence of other features, structures, or characteristics. The term "comprising" is used to include the presence of other features, structures, or characteristics, but not to exclude the presence of other features, structures, or characteristics. The term "comprising" is used to include the presence of other features, structures, or characteristics, but not to exclude the presence of other features, structures, or characteristics.
[0096] It should be readily understood that "on", "above", and "upper" in the present application should be interpreted in the broadest manner to mean not only "directly on something", but also "on something" with intervening features or layers therebetween, and "above" or "upper" not only includes the meaning of "above" or "upper" something, but also includes the meaning of "above" or "upper" something without intervening features or layers therebetween (i.e., directly on something).
[0097] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0098] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, but not limiting the technical solutions of the present application; even though the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some or all of the technical features thereof; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A radiator, characterized in that, include: A base (100) for connecting to a heat source; Fin clusters (200), at least two of which are stacked on the base (100); The fin cluster (200) includes a plurality of fin elements (210) arranged at intervals in sequence. The fin elements (210) are bent and extended, and two adjacent fin elements (210) are arranged opposite to each other to form a flow channel (300) with a cross-sectional size that varies along the extension direction of the fin elements (210). In two adjacent fin clusters (200), the fin element (210) of one fin cluster (210) is at least partially staggered with the fin element (210) of the other fin cluster (200) so that the flow channels (300) of the two fin clusters (200) are connected along the stacking direction.
2. The radiator according to claim 1, characterized in that, The fin member (210) includes a bent portion (211), and multiple bent portions (211) are arranged sequentially along the extension direction of the fin member (210).
3. The radiator according to claim 2, characterized in that, In two adjacent fins (210) of the same fin cluster (200), the concave sides of the curved portions (211) of the two fins face each other to form a high-pressure section (310) of the flow channel (300), and the convex sides of the curved portions (211) of the two fins face each other to form a low-pressure section (320) of the flow channel (300).
4. The radiator according to claim 3, characterized in that, Within the same fin member (210), the convex sides of two adjacent curved portions (211) face opposite directions.
5. The radiator according to claim 3, characterized in that, The curved portion (211) is curved in an arc shape or a broken line shape.
6. The radiator according to any one of claims 3-5, characterized in that, In two adjacent fin clusters (200), the fin elements (210) of one are stacked one-to-one with the fin elements (210) of the other; In the two stacked fins (210), the convex sides of the curved portion (211) face opposite directions.
7. The radiator according to claim 6, characterized in that, In two adjacent fin clusters (200), the low-pressure section (320) of one flow channel (300) is connected to the high-pressure section (310) of the other flow channel (300).
8. The radiator according to any one of claims 3-5, characterized in that, The fin (210) also includes a straight portion (212), and two adjacent curved portions (211) in the same fin (210) are connected by the straight portion (212).
9. The radiator according to claim 8, characterized in that, In the two adjacent fins (210) of the same fin cluster (200), the straight portions (212) correspond to each other to form the isobaric section (330) of the flow channel (300), the isobaric section (330) connecting the high pressure section (310) and the low pressure section (320).
10. The radiator according to claim 9, characterized in that, Along the extending direction of the fin (210), the width of the isobaric section (330) is greater than or equal to twice the minimum width of the low-pressure section (320).
11. The radiator according to any one of claims 1-5, characterized in that, The base (100) includes: A contact portion (110) is provided for connection with the heat source, and the fin cluster (200) is disposed on the contact portion (110); Side plate portion (120), the side plate portion (120) is disposed on the contact portion (110) and located on opposite sides of the extension direction of the flow channel (300).
12. A heat dissipation device, characterized in that, It includes a device body and a heat sink disposed on the device body as described in any one of claims 1-11.
13. An electrical appliance, characterized in that, Includes a device body and a heat sink disposed on the device body as described in any one of claims 1-11; Alternatively, it may include a device body and a heat dissipation device as described in claim 12 disposed on the device body.