Radiator, processing device and electronic equipment

Abstract

The utility model belongs to the technical field of heat dissipation devices, and particularly relates to a heat dissipation device, a machining device and electronic equipment. The radiator comprises a substrate and a plurality of radiating teeth arranged on the substrate, and the radiating teeth are arranged in parallel at intervals; wherein the heat dissipation teeth comprise at least one heat dissipation part, the heat dissipation part comprises a first heat dissipation area and a second heat dissipation area, the first heat dissipation area comprises a plurality of concave parts and a plurality of convex parts, and the concave parts and the convex parts are alternately arranged in the height direction of the heat dissipation teeth; the first heat dissipation area and the second heat dissipation area are arranged in the height direction of the heat dissipation teeth, the second heat dissipation area is close to the substrate and is a plane, in the height direction of the heat dissipation teeth, the extension length of the first heat dissipation area is larger than that of the second heat dissipation area, and the extension length of the second heat dissipation area is larger than 5 mm. According to the utility model, the problem that the connecting ends of the heat dissipation teeth are easy to break in the punching process of the heat dissipation teeth is solved, and the processing difficulty of the heat dissipation teeth is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation devices, and in particular relates to a radiator, a processing device and an electronic device. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Radiators are widely used in electronic devices to prevent the heating components of electronic devices from overheating, and they play a vital role in ensuring the working efficiency of heating components. The radiator is generally scraped out from the surface of the substrate with a scraper and then straightened. The final shape of the heat sink teeth is straight or slightly curved. In the related art, different structures are stamped out on the surface of the heat sink teeth to increase the heat exchange area of ​​the heat sink teeth. However, since the heat sink teeth that have just been turned are relatively weak, the connecting ends of the heat sink teeth are easily stamped and broken during the stamping process, resulting in the problem of difficulty in processing the heat sink teeth. Utility Model Content

[0004] The purpose of the utility model is to at least solve the problem that the connecting end of the heat dissipation tooth is easily broken during the stamping process of the heat dissipation tooth, and this purpose is achieved through the following technical solutions:

[0005] The utility model provides a heat sink in a first aspect, the heat sink comprising a substrate and a plurality of heat dissipation teeth arranged on the substrate, the plurality of heat dissipation teeth being arranged in parallel and spaced apart;

[0006] Wherein, the heat dissipation tooth includes at least one heat dissipation part, the heat dissipation part includes a first heat dissipation area and a second heat dissipation area, the first heat dissipation area and the second heat dissipation area are arranged along the height direction of the heat dissipation tooth, the first heat dissipation area includes a plurality of recesses and a plurality of protrusions, the plurality of recesses and the plurality of protrusions are alternately arranged at the height of the heat dissipation tooth, the second heat dissipation area is close to the substrate, and the second heat dissipation area is planar, in the height direction of the heat dissipation tooth, the extension length of the first heat dissipation area is greater than the extension length of the second heat dissipation area, and the extension length of the second heat dissipation area is greater than 5mm.

[0007] According to the heat sink of the utility model, by setting the extension length of the second heat sink area to be greater than 5 mm, the second heat sink area has a sufficient length to avoid breaking the heat sink teeth from the base when punching multiple recesses and multiple protrusions on the first heat sink area, thereby reducing the difficulty of processing the heat sink teeth. At the same time, multiple recesses and multiple protrusions are arranged alternately along the height direction of the first heat sink area, which can greatly increase the heat sink area of ​​the heat sink teeth without increasing the size of the heat sink teeth, and effectively improve the heat sink efficiency of the heat sink.

[0008] In addition, the radiator according to the utility model may also have the following additional technical features:

[0009] In some embodiments of the present invention, each of the concave portions and each of the convex portions are arranged along the length direction of the heat dissipation tooth.

[0010] In some embodiments of the present invention, the concave portion includes one of an arc-shaped concave surface and a sawtooth-shaped concave surface, and / or the convex portion includes one of an arc-shaped convex surface and a sawtooth-shaped convex surface.

[0011] In some embodiments of the present invention, among two adjacent heat dissipation teeth, the concave portion of one heat dissipation tooth corresponds to the concave portion of the other heat dissipation tooth, and the convex portion of one heat dissipation tooth corresponds to the convex portion of the other heat dissipation tooth.

[0012] In some embodiments of the utility model, the heat dissipation tooth includes a plurality of heat dissipation parts, and the plurality of heat dissipation parts are arranged along the length direction of the heat dissipation tooth. Among two adjacent heat dissipation parts, the convex part of one of the heat dissipation parts corresponds to the concave part of the other heat dissipation part, and the concave part of one of the heat dissipation parts corresponds to the convex part of the other heat dissipation part.

[0013] In some embodiments of the present invention, a plurality of first heat dissipation areas corresponding to the plurality of heat dissipation parts are separately and independently arranged.

[0014] The second aspect of the present invention provides a heat sink processing device, which is used to process any heat sink provided in the first aspect of the present invention, and the processing device includes:

[0015] A scraper, the scraper is used to scrape out the heat dissipation teeth from the surface of the substrate of the heat sink;

[0016] A profiling assembly, comprising a first profiling part and a second profiling part, wherein the first profiling part has a first profiling structure, and the second profiling part has a second profiling structure matched with the first profiling structure;

[0017] In working state, the heat dissipation tooth is located between the first pressing part and the second pressing part, the first pressing part and the second pressing part are squeezed together, and the first pressing structure and the second pressing structure are matched to form the first heat dissipation area on the surface of the heat dissipation tooth.

[0018] In some embodiments of the present invention, the first pressing portion includes a first pressing slope, which is used to fit with the first surface of the heat dissipation tooth, the first pressing structure includes a plurality of first dies and a plurality of first convex dies, the plurality of first dies and the plurality of first convex dies are alternately arranged in the inclined direction of the first pressing slope, and each of the first dies and each of the first convex dies are arranged along the width direction of the first pressing slope, the second pressing portion includes a second pressing slope, the second pressing slope is used to fit with the second surface of the heat dissipation tooth away from the first surface, the second pressing structure includes a plurality of second dies and a plurality of second convex dies, the plurality of second dies and the plurality of second convex dies are alternately arranged in the inclined direction of the second pressing slope, and each of the second dies and each of the second convex dies are arranged along the width direction of the second pressing slope, and when the first pressing portion and the second pressing portion are extruded and fitted, the first die and the second convex dies are fitted in a concave-convex manner, and the first convex dies and the second die are fitted in a concave-convex manner.

[0019] In some embodiments of the present utility model, the scraper and the first pressing portion form an integrally formed structure;

[0020] Alternatively, the scraper is independently arranged apart from the first profiling part.

[0021] In some embodiments of the utility model, the processing device also includes a supporting portion, which is arranged at the bottom of the substrate and located on both sides of the width direction of the substrate. When the scraper and the first profiling portion form an integrally formed structure, the supporting portion supports the scraper when the first profiling portion and the second profiling portion are in an extruded fit state; or, when the scraper and the first profiling portion are independently arranged, the supporting portion supports the first profiling portion when the first profiling portion and the second profiling portion are in an extruded fit state.

[0022] The third aspect of the present invention provides an electronic device, which includes a heating device; any radiator provided in the first aspect of the present invention, wherein the radiator is arranged corresponding to the heating device and is used to absorb heat generated by the heating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0024] Figure 1The structure of the radiator according to the embodiment of the utility model is schematically shown.

[0025] Figure 2 The figure schematically shows a side view of a radiator according to an embodiment of the present invention.

[0026] Figure 3 The structure of a radiator according to another embodiment of the present invention is schematically shown.

[0027] Figure 4 A side view of a radiator according to another embodiment of the present invention is schematically shown.

[0028] Figure 5 The figure schematically shows a pressing state diagram of a heat sink processing device according to an embodiment of the utility model.

[0029] Figure 6 The structure of a scraper according to an embodiment of the utility model is schematically shown.

[0030] Figure 7 The structure diagram of the second pressing part according to the embodiment of the utility model is schematically shown.

[0031] Figure 8 The figure schematically shows the pressing state of a heat sink processing device according to another embodiment of the utility model.

[0032] Fig. 9 The figure schematically shows the pressing state of a heat sink processing device according to another embodiment of the utility model.

[0033] The reference numerals are as follows:

[0034] 1. Base plate; 2. Heat dissipation teeth; 21. Heat dissipation portion; 211. First heat dissipation region; 2111. Concave portion; 2112. Protrusion; 212. Second heat dissipation region; 3. Base material; 4. Scraper; 41. Support slope; 5. First pressing portion; 501. First pressing slope; 51. First pressing structure; 511. First concave mold; 512. First convex mold; 6. Second pressing portion; 601. Second pressing slope; 61. Second pressing structure; 611. Second concave mold; 612. Second convex mold; 7. Support portion; 8. Pressing roller. DETAILED DESCRIPTION

[0035] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0037] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0038] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0039] The present embodiment is described in detail below in conjunction with the accompanying drawings. The following embodiments and examples may be combined with each other unless there is any conflict.

[0040] According to the implementation mode of the present utility model, Figure 1-Figure 4As shown, this embodiment provides a heat sink, which includes a substrate 1 and a plurality of heat dissipation teeth 2 arranged on the substrate 1, wherein the plurality of heat dissipation teeth 2 are arranged in parallel and spaced apart. In one example, the plurality of heat dissipation teeth 2 are arranged along the extension direction of the substrate 1, and the extension direction of the substrate 1 is referred to as Figure 1 and Figure 3 The direction shown by the X1 axis. In other feasible ways, the plurality of heat dissipating teeth 2 can also be arranged along other directions of the substrate 1, for example, along the width direction of the substrate 1. The heat dissipating teeth 2 and the substrate 1 are both made of materials with excellent thermal conductivity, and the materials of the heat dissipating teeth 2 and the substrate 1 can be copper, aluminum and their alloys. The heat dissipating teeth 2 and the substrate 1 can be made of the same material or different materials. In one example, the heat dissipating teeth 2 and the substrate 1 are an integrally formed structure. In another example, the heat dissipating teeth 2 and the substrate 1 are separately and independently arranged, and are connected by means of snap-on, plug-in, connector connection, bonding and / or welding.

[0041] In the scenario where the heat sink is applied to electronic equipment, the substrate 1 of the heat sink is in direct contact with the heating device or in contact with the heating device through other heat-conducting components. During the operation of the heating device, the substrate 1 absorbs the heat of the heating device and transfers the heat to multiple heat dissipation teeth 2, and then the heat dissipation teeth 2 conduct the heat to the air, forming a hot air flow under the action of the fan of the electronic equipment and dissipating it from the gaps between adjacent heat dissipation teeth 2. When the distance between multiple heat dissipation teeth 2 reaches the limit distance, the heat dissipation effect of the heat sink is positively correlated with the area of ​​the heat dissipation teeth 2, but increasing the height, thickness or length of the heat dissipation teeth 2 will increase the overall volume of the heat sink, thereby increasing the volume of the entire electronic device.

[0042] To solve this problem, the heat dissipation tooth 2 of the present embodiment includes at least one heat dissipation portion 21, the heat dissipation portion 21 includes a first heat dissipation region 211 and a second heat dissipation region 212, the first heat dissipation region 211 and the second heat dissipation region 212 are arranged along the height direction of the heat dissipation tooth 2, the first heat dissipation region 211 includes a plurality of concave portions 2111 and a plurality of convex portions 2112, the plurality of concave portions 2111 and the plurality of convex portions 2112 are alternately arranged in the height direction of the heat dissipation tooth 2, and a preset angle is formed between the height direction of the heat dissipation tooth 2 and the substrate 1, the preset angle is greater than 0 degrees and less than 180 degrees, and the height direction of the heat dissipation tooth 2 refers to Figure 1 and Figure 3 The direction shown by the Y1 axis. Preferably, the preset angle is 90 degrees.

[0043] The second heat dissipation region 212 is close to the substrate 1, and the second heat dissipation region 212 connects the first heat dissipation region 211 to the substrate 1. The second heat dissipation region 212 is arranged in a plane, which helps to improve the reliability of the connection between the first heat dissipation region 211 and the substrate 1, and at the same time solves the problem of internal stress or root damage caused by the tooth root of the heat dissipation tooth 2 not being in a straight line. In the height direction of the heat dissipation tooth 2, the extension length of the first heat dissipation region 211 is greater than the extension length of the second heat dissipation region 212, so as to maximize the heat dissipation effect of the heat dissipation tooth 2. At the same time, by setting the extension length of the second heat dissipation region 212 to be greater than 5 mm, the second heat dissipation region 212 has sufficient length to avoid breaking the heat dissipation tooth 2 from the base 1 when punching multiple recesses and multiple protrusions on the first heat dissipation region 211, thereby reducing the processing difficulty of the heat dissipation tooth 2.

[0044] The heat dissipation teeth 2 of this embodiment include a first surface and a second surface that are arranged opposite to each other. With the first surface as a reference, the concave portion 2111 is concave from the first surface to the second surface, and the convex portion 2112 is convex from the second surface to the first surface, that is, the concave portion 2111 of the first surface is the convex portion 2112 of the second surface, and the convex portion 2112 of the first surface is the concave portion 2111 of the second surface. In this embodiment, by providing a plurality of concave portions 2111 and a plurality of convex portions 2112 on the heat dissipation teeth 2, the heat dissipation area is significantly increased, whether on the first surface of the heat dissipation teeth 2 or on the second surface of the heat dissipation teeth 2, and the heat dissipation efficiency of the heat sink is effectively improved without increasing the size of the heat dissipation teeth 2. At the same time, when the heat dissipation teeth 2 are shoveled out from the surface of the substrate 3 and are straightened, the tooth roots of the heat dissipation teeth 2 are prevented from being damaged by internal stress.

[0045] In some embodiments, Figure 1 and Figure 3 As shown, each concave portion 2111 and each convex portion 2112 are arranged along the length direction of the heat dissipation tooth 2. The length direction of the heat dissipation tooth 2 is referred to as Figure 1 The direction shown by the Z1 axis in the figure. With the first surface as the reference, the concave portion 2111 located on the first surface forms a straight airflow path along the length direction of the heat dissipation tooth 2 on the first surface, and the convex portion 2112 located on the first surface also forms a straight airflow path along the length direction of the heat dissipation tooth 2 on the second surface. The straight airflow path can effectively reduce the airflow resistance when the hot air flows through the surface of the heat dissipation tooth 2. The direction of the hot air flow is referenced to Figure 1 and Figure 3 The direction indicated by the black arrow.

[0046] This embodiment does not limit the structure of the concave portion 2111 and the convex portion 2112. For example, the concave portion 2111 includes one of an arcuate concave surface and a sawtooth concave surface, and / or the convex portion 2112 includes one of an arcuate convex surface and a sawtooth convex surface. The sawtooth shape of this embodiment is, for example, one of a triangular tooth, a trapezoidal tooth, or a flat tooth. A variety of structural forms of concave portions 2111 and convex portions 2112 can be used in the same heat dissipation tooth 2. The structures of the concave portions 2111 and convex portions 2112 can be flexibly designed based on comprehensive considerations of the overall heat dissipation effect of the heat sink, production cost, and difficulty of the production process.

[0047] In some embodiments, Figure 1-Figure 4 As shown, among two adjacent heat dissipation teeth 2, the recess 2111 of one heat dissipation tooth 2 corresponds to the recess 2111 of the other heat dissipation tooth 2, and the protrusion 2112 of one heat dissipation tooth 2 corresponds to the recess 2112 of the other heat dissipation tooth 2, so as to shorten the distance between adjacent heat dissipation teeth 2, increase the setting density of the heat dissipation teeth 2 on the substrate 1, and further increase the heat dissipation area of ​​the entire radiator.

[0048] In some embodiments, Figure 1-Figure 4 As shown, in some embodiments, Figure 3 and Figure 4 As shown, the heat dissipation tooth 2 includes a plurality of heat dissipation parts 21, and the plurality of heat dissipation parts 21 are arranged along the length direction of the heat dissipation tooth 2. Among two adjacent heat dissipation parts 21, the convex part 2112 of one heat dissipation part 21 corresponds to the concave part 2111 of the other heat dissipation part 21. The concave part 2111 of one heat dissipation part 21 corresponds to the convex part 2112 of the other heat dissipation part 21. With the first surface as a reference, the concave part 2111 forms a first air flow passage on the first surface, and the convex part 2112 forms a second air flow passage on the second surface. Among the two adjacent heat dissipation parts 21, the first air flow passage of one heat dissipation part 21 is connected with the second air flow passage of the other heat dissipation part 21. Since the first air flow passage and the second air flow passage are both straight flow passages, the air flow passage after the first air flow passage and the second air flow passage are connected is also a straight flow passage. When the hot air flow flows through the surface of the heat dissipation tooth 2, it first flows into the first air flow passage of one of the heat dissipation parts 21, and then flows into the second air flow passage of the other heat dissipation part 21. The direction of the hot air flow refers to Figure 3 The black arrow in the figure shows the direction. In this embodiment, the airflow passage is divided into multiple sections, which effectively breaks the boundary layer on the surface of the heat dissipation teeth 2 and improves the convective heat transfer efficiency.

[0049] In this embodiment, the extension lengths of the first heat dissipation regions 211 corresponding to the plurality of heat dissipation parts 21 in the height direction of the heat dissipation teeth 2 may be the same or different; the plurality of first heat dissipation regions 211 corresponding to the plurality of heat dissipation parts 21 are separately and independently arranged to reduce the difficulty of processing. The second heat dissipation regions 212 corresponding to the first heat dissipation regions 211 of the plurality of heat dissipation parts 21 may be arranged integrally or separately and independently.

[0050] In other achievable embodiments, a plurality of recesses 2111 and a plurality of protrusions 2112 form a plurality of rows in the length direction of the heat dissipation tooth 2, and a plurality of recesses 2111 and a plurality of protrusions 2112 in each row are alternately arranged in the height direction of the heat dissipation tooth 2, and in two adjacent rows, the protrusions 2112 in one row correspond to the recesses 2111 in the other row, and the recesses 2111 in one row correspond to the protrusions 2112 in the other row, and the recesses 2111 and the protrusions 2112 are smoothly transitioned through an arc surface, thereby forming a three-dimensional wavy surface, effectively increasing the heat dissipation area of ​​the heat dissipation tooth 2.

[0051] According to the implementation mode of the present utility model, Figure 5-Figure 9 As shown, this embodiment proposes a heat sink processing device, which is used to process any heat sink proposed in the above embodiments, and the processing device includes a scraper 4 and a press component, wherein the scraper 4 is used to scrape out the heat sink teeth 2 from the surface of the substrate 3 of the heat sink. For example, the scraper 4 moves along the length direction of the substrate 3 and scrapes out the heat sink teeth 2 on the surface of the substrate 3. The length direction of the substrate 3 is referred to as Figure 5 The direction is shown by the X2 axis. The remaining part of the substrate 3 in the thickness direction of the substrate 3 after the heat dissipation teeth 2 are removed forms the base plate 1 of the heat sink. The profiling assembly includes a first profiling portion 5 and a second profiling portion 6, the first profiling portion 5 has a first profiling structure 51, and the second profiling portion 6 has a second profiling structure 61 that cooperates with the first profiling structure 51. In the working state, the heat dissipation tooth 2 is located between the first profiling portion 5 and the second profiling portion 6, the first profiling portion 5 and the second profiling portion 6 are extruded and matched, and the first profiling structure 51 and the second profiling structure 61 cooperate to form a first heat dissipation area 211 on the surface of the heat dissipation tooth 2. The processing device of this embodiment adds the extrusion molding process of the heat dissipation tooth 2 during the processing of the heat dissipation tooth 2, reduces the processing difficulty of the heat dissipation tooth 2 with an uneven surface, and improves the processing efficiency.

[0052] In one example, the first profiled structure 51 and the second profiled structure 61 are both three-dimensional models, such as Figure 6As shown, the first pressing part 5 includes a first pressing slope 501, and the first pressing slope 501 is used to fit with the first surface of the heat dissipation tooth 2. The first pressing structure 51 includes a plurality of first concave molds 511 and a plurality of first convex molds 512. The plurality of first concave molds 511 and the plurality of first convex molds 512 are alternately arranged along the inclination direction of the first pressing slope 501, and each first concave mold 511 and each first convex mold 512 are arranged along the width direction of the first pressing slope 501. The inclination direction of the first pressing slope 501 is referred to Figure 6 The direction shown by the Z2 axis, the width direction of the first profiled slope 501 is referenced Figure 6 The Y2 axis shows the direction.

[0053] like Figure 7 As shown, the second pressing part 6 includes a second pressing slope 601, and the second pressing slope 601 is used to fit with the second surface of the heat dissipation tooth 2 away from the first surface. The second pressing structure 61 includes a plurality of second concave molds 611 and a plurality of second convex molds 612, and the plurality of second concave molds 611 and the plurality of second convex molds 612 are alternately arranged along the inclination direction of the second pressing slope 601, and each second concave mold 611 and each second convex mold 612 are arranged along the width direction of the second pressing slope 601, and the inclination direction of the second pressing slope 601 is referred to as Figure 7 The direction shown by the Z2 axis, the width direction of the second pressed inclined surface 601 is referenced Figure 7 The Y2 axis shows the direction.

[0054] When the first pressing part 5 and the second pressing part 6 are in an extruded fit state, the first die 511 and the second punch 612 are fit together, and the first punch 512 and the second die 611 are fit together, so as to form a first heat dissipation area 211 on the surface of the heat dissipation tooth 2, which includes a plurality of convex portions 2112 and a plurality of convex portions 2112, and the plurality of convex portions 2112 and the plurality of convex portions 2112 are alternately arranged along the height direction of the heat dissipation tooth 2.

[0055] Exemplarily, the first concave mold 511 includes one of an arcuate concave surface or a sawtooth concave surface, and the first convex mold 512 includes one of an arcuate convex surface and a sawtooth convex surface. Correspondingly, the second concave mold 611 includes one of an arcuate concave surface or a sawtooth concave surface, and the second convex mold 612 includes one of an arcuate convex surface and a sawtooth convex surface.

[0056] In other possible ways, such as Figure 6 and 9As shown, the first pressing portion 5 includes a pressing slope, which is used to fit with the first surface of the heat dissipation tooth 2. The first pressing structure 51 includes a plurality of first dies 511 and a plurality of first dies 512. The plurality of first dies 511 and the plurality of first dies 512 are alternately arranged along the inclination direction of the pressing slope. The first dies 511 include an arc-shaped concave surface, and the first dies 512 include an arc-shaped convex surface. The second profiling structure 61 includes a plurality of press rollers 8. During the profiling process of the heat dissipation teeth 2 by the first profiling part 5 and the second profiling part 6, the plurality of press rollers 8 cooperate with the plurality of concave dies. The plurality of press rollers 8 are arranged along the inclination direction of the first profiling slope 501, and the press rollers 8 rotate while being extruded and cooperated with the corresponding first concave dies 511. The gaps between adjacent press rollers 8 cooperate with the first convex die 512, thereby forming a first heat dissipation area 211 on the surface of the heat dissipation teeth 2, wherein the plurality of convex portions 2112 and the plurality of convex portions 2112 are alternately arranged along the inclination direction of the first profiling slope 501.

[0057] In some embodiments, Figure 6 As shown, the scraper 4 and the first profiling part 5 are an integrally formed structure. Specifically, a support slope 41 is provided on the top of the scraper 4. The support slope 41 is used to support the heat dissipation teeth 2 when the scraper 4 scrapes out the heat dissipation teeth 2 from the surface of the substrate 3. The first profiling part 5 is integrally formed with the support slope 41. When the scraper 4 scrapes out the heat dissipation teeth 2 from the surface of the substrate 3, the heat dissipation teeth 2 are directly attached to the first profiling part 5. In this embodiment, by directly processing the first profiling part 5 on the support slope 41 of the scraping blade, additional mold costs can be reduced and the time for the first profiling part 5 to move can be saved, thereby improving processing efficiency.

[0058] In other possible ways, such as Figure 8 As shown, the first profiling portion 5 is independently provided separately from the scraper 4. Specifically, a support slope 41 is provided on the top of the scraper 4, and the angle between the support slope 41 and the substrate 3 is A. The support slope 41 is used to support the heat dissipation tooth 2 when the scraper 4 scrapes out the heat dissipation tooth 2 from the surface of the substrate 3. The first profiling portion 5 includes a first profiling slope 501, and the angle between the first profiling slope 501 and the substrate 3 is B, satisfying A=B. After the scraper 4 scrapes out the heat dissipation tooth 2 from the surface of the substrate 3 and resets to the initial position, the angle between the heat dissipation tooth 2 and the substrate 3 is A, and the first profiling portion 5 can be controlled to move to the heat dissipation tooth 2 to fit the first surface of the heat dissipation tooth 2.

[0059] In some embodiments, Figure 5 , Figure 7 and Fig. 9 As shown, the processing device also includes a support portion 7, which is arranged at the bottom of the substrate 3 and located on both sides of the width direction of the substrate 3. The width direction of the substrate 3 is referred to as Figure 5The direction is shown by the Y2 axis. When the blade 4 and the first profiling part 5 form an integrally formed structure, the support part 7 supports the blade 4 in a state where the first profiling part 5 and the second profiling part 6 are squeezed and fitted, or, when the blade 4 and the first profiling part 5 are separately and independently arranged, the support part 7 supports the first profiling part 5 in a state where the first profiling part 5 and the second profiling part 6 are squeezed and fitted. The support part 7, for example, includes a movable supporting top block. After the first profiling part 5 is attached to the first surface, the support part 7 will move to the lower surface of the blade 4 to support the blade 4, or move to the lower surface of the first profiling part 5 to support the first profiling part 5, so as to enhance the mechanical properties of the blade 4 or the first profiling part 5.

[0060] According to an exemplary embodiment, this embodiment proposes an electronic device, which includes a heating device and any heat sink proposed in the above embodiment, and the electronic device is, for example, a controller. The heat sink is arranged corresponding to the heating device, and is used to absorb the heat of the heating device to ensure the normal operation of the heating device. The electronic device of this embodiment can improve the heat dissipation capacity in a limited space, avoid the increase in the size of the whole machine due to the increase in the size of the heat sink, thereby saving space and cost, and improving product competitiveness.

[0061] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A radiator, characterized in that: The heat sink comprises a base plate and a plurality of heat dissipation teeth arranged on the base plate, wherein the plurality of heat dissipation teeth are arranged in parallel and at intervals; Wherein, the heat dissipation tooth includes at least one heat dissipation part, the heat dissipation part includes a first heat dissipation area and a second heat dissipation area, the first heat dissipation area and the second heat dissipation area are arranged along the height direction of the heat dissipation tooth, the first heat dissipation area includes a plurality of recesses and a plurality of protrusions, the plurality of recesses and the plurality of protrusions are alternately arranged at the height of the heat dissipation tooth, the second heat dissipation area is close to the substrate, and the second heat dissipation area is planar, in the height direction of the heat dissipation tooth, the extension length of the first heat dissipation area is greater than the extension length of the second heat dissipation area, and the extension length of the second heat dissipation area is greater than 5mm.

2. The heat sink according to claim 1, characterized in that: Each of the concave portions and each of the convex portions are arranged along the length direction of the heat dissipation teeth.

3. The heat sink according to claim 2, characterized in that: The concave portion includes one of an arc-shaped concave surface and a sawtooth-shaped concave surface, and / or the convex portion includes one of an arc-shaped convex surface and a sawtooth-shaped convex surface.

4. The heat sink according to claim 2, characterized in that: Among two adjacent heat dissipation teeth, the concave portion of one heat dissipation tooth corresponds to the concave portion of the other heat dissipation tooth, and the convex portion of one heat dissipation tooth corresponds to the convex portion of the other heat dissipation tooth.

5. The heat sink according to claim 4, characterized in that: The heat dissipation tooth includes a plurality of heat dissipation parts, and the plurality of heat dissipation parts are arranged along the length direction of the heat dissipation tooth. Among two adjacent heat dissipation parts, the convex part of one of the heat dissipation parts corresponds to the concave part of the other heat dissipation part, and the concave part of one of the heat dissipation parts corresponds to the convex part of the other heat dissipation part.

6. The heat sink according to claim 5, characterized in that A plurality of first heat dissipation regions corresponding to the plurality of heat dissipation parts are separately and independently arranged.

7. A heat sink processing device, characterized in that: The processing device is used to process the heat sink according to any one of claims 1 to 6, and the processing device comprises: A scraper, the scraper is used to scrape out the heat dissipation teeth from the surface of the substrate of the heat sink; A profiling assembly, comprising a first profiling part and a second profiling part, wherein the first profiling part has a first profiling structure, and the second profiling part has a second profiling structure matched with the first profiling structure; In working state, the heat dissipation tooth is located between the first pressing part and the second pressing part, the first pressing part and the second pressing part are extruded and matched, and the first pressing structure and the second pressing structure form the first heat dissipation area on the surface of the heat dissipation tooth.

8. The processing device according to claim 7, characterized in that: The first pressing portion includes a first pressing slope, which is used to fit with the first surface of the heat dissipation tooth. The first pressing structure includes a plurality of first dies and a plurality of first convex dies. The plurality of first dies and the plurality of first convex dies are alternately arranged in the inclined direction of the first pressing slope, and each of the first dies and each of the first convex dies are arranged along the width direction of the first pressing slope. The second pressing portion includes a second pressing slope, which is used to fit with the second surface of the heat dissipation tooth away from the first surface. The second pressing structure includes a plurality of second dies and a plurality of second convex dies. The plurality of second dies and the plurality of second convex dies are alternately arranged in the inclined direction of the second pressing slope, and each of the second dies and each of the second convex dies are arranged along the width direction of the second pressing slope. When the first pressing portion and the second pressing portion are extruded and fitted, the first die and the second convex dies are fitted in a concave-convex manner, and the first convex dies and the second die are fitted in a concave-convex manner.

9. The heat sink processing device according to claim 7, characterized in that: The scraper and the first pressing part form an integrally formed structure; Alternatively, the scraper is independently arranged apart from the first profiling part.

10. The heat sink processing device according to claim 9, characterized in that: The processing device also includes a support portion, which is arranged at the bottom of the substrate and located on both sides of the substrate in the width direction. When the scraper and the first pressing part form an integrally formed structure, the support portion supports the scraper when the first pressing part and the second pressing part are in an extruded fit state; or, when the scraper and the first pressing part are independently arranged, the support portion supports the first pressing part when the first pressing part and the second pressing part are in an extruded fit state.

11. An electronic device, characterized in that: The electronic device comprises: Heating device; The radiator according to any one of claims 1 to 6 is arranged corresponding to the heating device and is used to absorb the heat generated by the heating device.

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