CN115484778A - Large radiator with K-shaped radiating tooth profile, radiating device and radiating system - Google Patents
Large radiator with K-shaped radiating tooth profile, radiating device and radiating system Download PDFInfo
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- CN115484778A CN115484778A CN202110663099.3A CN202110663099A CN115484778A CN 115484778 A CN115484778 A CN 115484778A CN 202110663099 A CN202110663099 A CN 202110663099A CN 115484778 A CN115484778 A CN 115484778A
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 95
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001754 anti-pyretic effect Effects 0.000 description 2
- 239000002221 antipyretic Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
- H05K7/20409—Outer radiating structures on heat dissipating housings, e.g. fins integrated with the housing
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Abstract
The invention discloses a large radiator with a K-shaped radiating tooth form, a radiating device and a radiating system, wherein the large radiator comprises a straight-through part and a right-angle part; the straight-through part comprises a plurality of straight-through heat dissipation teeth which are parallel to each other; the right-angle part comprises a closed edge and three open edges, the closed edge is adjacent to the straight-through part, the three open edges comprise a long edge and two short edges, the three open edges are respectively vertical to the edges and provided with a plurality of radiating teeth, the radiating teeth on the short edges form right angles with the radiating teeth on the long edge at the joint, a first right-angle area and a second right-angle area are respectively formed, and the first right-angle area, the second right-angle area and the straight-through part form a K-shaped radiating tooth shape. In the large radiator with the K-shaped radiating tooth shape, the radiating device and the radiating system, the first right-angle area, the second right-angle area and the straight-through part on the large radiator form the K-shaped radiating tooth shape, and the straight-through part and the right-angle part are mutually independent in distribution, so that the radiating tooth height is reduced, and the purpose of reducing the product volume is achieved.
Description
Technical Field
The invention relates to the field of radiators, in particular to a large radiator with a K-shaped radiating tooth shape, a radiating device and a radiating system.
Background
In the 5G commercial market, prrus (i.e., pico base stations) account for a very important share. In addition to the spelling of the pRRU's own functions, miniaturization of product volumes is also an important industry competition point. The competition of pRRU volume is essentially the competition of heat dissipation capacity, which is essentially the design of heat dissipation tooth type under the same internal heat conduction condition.
The heat dissipation tooth type of the pRRU product in the prior art mainly includes a straight-through type, a "non" type, an "X" type, and a "cross" type, and the four tooth types play different heat dissipation functions on a product with a one-board (i.e. 1 PCB) scheme, but cannot further play the optimal heat-clearing capability on a product with a two-board (i.e. 2 PCB) scheme.
The prior art mainly inquires from two aspects of a special-shaped tooth patent and the prior pRRU product radiating tooth, and is summarized as follows:
1. patent search is performed based on keywords such as "heat dissipation teeth", "deformed teeth", and the like, and the related patent of the existing deformed heat dissipation teeth is shown in fig. 1, and it can be known that: the inventor breaks through the conventional arrangement mode of the radiating teeth according to the radiating requirements of all modules in the product, designs the special-shaped radiating teeth shown in figure 1, and improves and promotes the radiating performance of the product.
2. The network search is carried out based on keywords such as 'pRRU' and 'pico base station', and the following four heat dissipation tooth shapes are mainly summarized in the current pRRU in the industry: straight-through type, non-font, X-font, cross-font, as shown in FIG. 2. The evaluation shows that: these four types of pRRU were used in combination on one-plate pRRU, and no further superior antipyretic capacity could be exerted on the two-plate pRRU.
It can be seen that the main disadvantages of the prior art are as follows:
the first disadvantage is that: the existing special-shaped tooth type design is mostly optimized by heat dissipation teeth used for vertically mounting products, and is not suitable for pRRU mainly for ceiling mounting.
The second defect: the four types of pRRU teeth currently used on one-plate pRRU were not able to further exert superior antipyretic capacity on the two-plate pRRU.
Disclosure of Invention
The present invention is directed to a heat dissipation device and a heat dissipation system for dual PCBs.
The technical scheme adopted by the invention for solving the technical problems is as follows: providing a large radiator with a K-shaped radiating tooth form, wherein the large radiator comprises a through part and a right-angle part;
the straight-through part comprises a plurality of straight-through heat dissipation teeth which are parallel to each other;
the right-angle part comprises a closed edge and three open edges, the closed edge is adjacent to the straight-through part, the three open edges comprise a long edge and two short edges, the three open edges are respectively vertical to the edges and provided with a plurality of radiating teeth, the radiating teeth on the short edges form right angles with the radiating teeth on the long edge at the joint, a first right-angle area and a second right-angle area are respectively formed, and the first right-angle area, the second right-angle area and the straight-through part form a K-shaped radiating tooth shape.
Preferably, the large heat sink includes two sets of the right-angle portions, the through portion is disposed between the two sets of the right-angle portions, and the closed edges of the two sets of the right-angle portions are respectively disposed in a back-to-back manner in parallel with the through heat dissipation teeth on both sides of the through portion.
The heat dissipation device with the K-shaped heat dissipation tooth form comprises a large heat radiator and a small heat radiator, wherein the large heat radiator comprises a straight-through part and a right-angle part, and a containing position for containing the small heat radiator is arranged on the large heat radiator;
the straight-through part comprises a plurality of straight-through heat dissipation teeth which are parallel to each other;
the right-angle part comprises a closed edge and three open edges, the closed edge is adjacent to the straight-through part, the three open edges comprise a long edge and two short edges, the three open edges are respectively vertical to the edges and provided with a plurality of radiating teeth, the radiating teeth on the short edges form right angles with the radiating teeth on the long edge at the joint, a first right-angle area and a second right-angle area are respectively formed, and the first right-angle area, the second right-angle area and the straight-through part form a K-shaped radiating tooth shape.
Preferably, the large heat sink includes two sets of the right-angle portions, the through portion is disposed between the two sets of the right-angle portions, and the closed edges of the two sets of the right-angle portions are respectively disposed in a back-to-back manner in parallel with the through heat dissipation teeth on both sides of the through portion.
Preferably, a low tooth area with a tooth height of H1 is arranged on the through portion, the accommodating position is located in the low tooth area, the highest tooth height on the large heat sink is H3, and H1 is less than H3.
The heat dissipation system with the K-shaped heat dissipation tooth form comprises a main function board, a large heat radiator, a port board and a small heat radiator which are sequentially arranged from bottom to top; the large radiator comprises a straight-through part and a right-angle part, and an accommodating position for accommodating the port plate is arranged on the large radiator;
the straight-through part comprises a plurality of straight-through heat dissipation teeth which are parallel to each other;
the right-angle part comprises a closed edge and three open edges, the closed edge is adjacent to the straight-through part, the three open edges comprise a long edge and two short edges, the three open edges are respectively vertical to the edges and provided with a plurality of radiating teeth, the radiating teeth on the short edges form right angles with the radiating teeth on the long edge at the joint, a first right-angle area and a second right-angle area are respectively formed, and the first right-angle area, the second right-angle area and the straight-through part form a K-shaped radiating tooth shape.
Preferably, the large heat sink includes two sets of the right-angle portions, the through portion is disposed between the two sets of the right-angle portions, and the closed edges of the two sets of the right-angle portions are respectively disposed in a back-to-back manner in parallel with the through heat dissipation teeth on both sides of the through portion.
Preferably, the area ratio of the two groups of the right angle parts is 1: 1.
Preferably, a low tooth area with a tooth height of H1 is arranged on the through portion, the accommodating position is located in the low tooth area, the highest tooth height on the large heat sink is H3, and H1 is less than H3.
Preferably, the port plate includes a port interface thereon; the large radiator also comprises a middle tooth area, the middle tooth area comprises a plurality of middle radiating teeth, the middle radiating teeth are parallel to each other, the tooth height of the middle radiating teeth is H0, and H1 is more than H0 and less than H3; the middle toothed region is disposed adjacent to the port interface.
The beneficial effects of the implementation of the invention are as follows: in the heat dissipation device with the K-type heat dissipation tooth shape and the heat dissipation system, the large radiator and the small radiator are respectively arranged, so that the port plate is provided with the independent air duct design independent of the main function plate, the mutual baking performance of hot air flow between two PCBs on the double-plate pRRU product is solved, the heat dissipation of the double-plate pRRU product is optimized, the temperature of each chip in the product is further reduced, the volume of the product is reduced, and the market competitiveness is improved.
In addition, the first right-angle area, the second right-angle area and the straight-through part on the large radiator form a K-shaped radiating tooth shape, and the straight-through part effectively conducts the airflow passages of the double-plate part to enable the airflow passages to respectively conduct the airflow passages, so that the port interfaces are prevented from being baked; the right angle portion further reduces the average temperature of the PCB by increasing the airflow inlet area. The two flow fields are mutually independent in distribution and complement each other in heat dissipation, so that the temperature of the double-plate pRRU is reduced, the heat dissipation tooth height can be further reduced, and the purpose of reducing the product volume is finally achieved.
Drawings
The invention will be further described with reference to the following drawings and examples, in which:
FIG. 1 is a schematic structural diagram of a conventional profile tooth in the prior art;
FIG. 2 is a schematic structural diagram of a heat dissipation tooth profile in the field of a pico-base station in the prior art;
FIG. 3a is a schematic diagram of a state in which a main function board and a port board are separated in some embodiments of the invention;
FIG. 3b is a schematic view of the installation of a main function board and a port board in some embodiments of the invention;
FIG. 4a is a schematic illustration of a large structural member and a small structural member in a separated state in some embodiments of the invention;
FIG. 4b is a schematic view of the installation of large and small structural members according to some embodiments of the present invention;
FIG. 5a is an exploded view of a heat dissipation system with K-shaped heat dissipation profiles according to some embodiments of the present invention;
FIG. 5b is a top view of the K-shaped heat sink profile of FIG. 5 a;
FIG. 6 is a schematic perspective view of a heat dissipation system with K-shaped heat dissipation profiles according to some embodiments of the present invention;
FIG. 7 is a sectional view of the tooth of the large heat sink of FIG. 5 a;
FIG. 8 is a bar graph comparing the height of a K-shaped heat dissipating tooth profile to a conventional tooth profile in a heat dissipating system having a K-shaped heat dissipating tooth profile according to some embodiments of the present invention;
FIG. 9a is an exploded view of a heat dissipation system with K-shaped heat dissipation profiles in accordance with another embodiment of the present invention;
FIG. 9b is a top view of the double K-shaped heat sink profile of FIG. 9 a;
FIG. 10a is an exploded view of a large heat sink with K-shaped heat dissipating teeth according to some embodiments of the present invention;
FIG. 10b is a top view of the K-shaped heat sink profile of FIG. 10 a;
FIG. 11a is an exploded view of a large heat sink with K-shaped heat dissipating teeth according to another embodiment of the present invention;
fig. 11b is a top view of the double-K type heat sink profile of fig. 11 a.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Fig. 5 illustrates a heat dissipation system with K-shaped heat dissipation profiles for heat dissipation in a horizontally mounted product with a dual-plate architecture, such as a dual-plate pRRU, in some embodiments of the invention. The heat dissipation system in the embodiment of the invention comprises double PCBs and a heat dissipation device with a K-shaped heat dissipation tooth form, wherein the double PCBs comprise a main function board 40 and a port board 20 arranged on the main function board 40, the heat dissipation device with the K-shaped heat dissipation tooth form comprises a large radiator 30 and a small radiator 10 which are respectively arranged corresponding to the main function board 40 and the port board 20, the arrangement mode is that the main function board 40, the large radiator 30, the port board 20 and the small radiator 10 are sequentially arranged from bottom to top, and the mutual baking performance between the two PCBs on the double-plate pRRU is solved through the design of an independent air duct between the large radiator 30 and the small radiator 10.
In the actual product design, the port board 20 will translate left and right at the position of the dual-board pRRU according to the layout requirement, as shown in fig. 3a and 3b, which are the port board 20 and the main function board 40. As shown in connection with fig. 5a-7, in some embodiments, port board 20 includes a port interface 203 thereon.
Referring to fig. 5a-7, the large heat sink 30 is provided with a low-teeth area 2011 for receiving the port plate 20, the low-teeth area 2011 has a tooth height H1, the small heat sink 10 has a tooth height H2, the highest tooth height of the large heat sink 30 is H3, and H1 is less than H3.
Preferably, the large heat sink 30 includes a through portion 201 and a right-angle portion 202, and a receiving position for receiving the port plate 20 is provided on the large heat sink 30, and the receiving position also receives the small heat sink 10. Specifically, the port plate 20 and the small heat sink 10 are stacked in this order on the receiving site. Preferably, the receiving position is located at the low-tooth area 2011 of the through portion 201. Alternatively, the accommodating position may be disposed on either one of the through portion 201 and the right-angle portion 202, or may be partially occupied on the through portion 201 and the right-angle portion 202, respectively, and the specific limitation is not limited herein as long as the related function can be achieved.
The straight-through part 201 comprises a high tooth area 2013 and a low tooth area 2011, the high tooth area 2013 comprises a plurality of high heat dissipation teeth, the high heat dissipation teeth are parallel to each other, and the tooth height of the high heat dissipation teeth is H3; the low tooth area 2011 includes a plurality of low heat dissipation teeth, the plurality of low heat dissipation teeth are parallel to each other, and the height of the low heat dissipation teeth is H1; the small heat radiator 10 comprises a plurality of small heat radiating teeth which are parallel to each other, and the height of the small heat radiating teeth is H2. In some embodiments, H1+ H2 ≦ H3. Alternatively, H1+ H2 is slightly smaller or slightly larger than H3, and is not particularly limited as long as the related function can be achieved.
As shown in fig. 5a-7, the right-angle portion 202 includes a closed side and three open sides, the closed side is adjacent to the through portion 201, the three open sides are perpendicular to the edges respectively and have a plurality of heat dissipation teeth, the three open sides include a long side and two short sides, the heat dissipation teeth on the short sides and the heat dissipation teeth on the long side form a right angle at the joint, and form a first right-angle region 2021 and a second right-angle region 2022 respectively, and the first right-angle region 2021, the second right-angle region 2022 and the through portion 201 form a K-shaped heat dissipation tooth shape. In some embodiments, first right-angle region 2021 and second right-angle region 2022 are both rectangular in shape. Preferably, the first right-angle area 2021 and the second right-angle area 2022 are the same in area. It is understood that all the tooth heights of the right-angle portion 202 may be H3, or all the tooth heights of the right-angle portion 202 may be slightly higher or lower than H3, or all the tooth heights of the right-angle portion 202 may be different within a certain small range, and are not limited specifically herein as long as the related functions are achieved.
As shown in fig. 5-8, the K-shaped heat dissipation tooth profile has the advantages that the through portion 201 effectively conducts the airflow paths of the dual-plate portions, so that the dual-plate portions can flow separately, and the port interface 203 is prevented from being baked; the right angled portion 202 further reduces the average temperature of the PCB by increasing the airflow entry area. The two flow fields are mutually independent in distribution and complement each other in heat dissipation, so that the temperature of the double-plate pRRU is reduced, the heat dissipation tooth height can be further reduced, and the purpose of reducing the volume of a product is finally achieved.
In some embodiments, port board 20 includes port interface 203 thereon; the large radiator 30 further comprises a middle tooth area 2012, the middle tooth area 2012 comprises a plurality of middle heat dissipation teeth, the plurality of middle heat dissipation teeth are parallel to each other, the tooth height of the middle heat dissipation teeth is H0, and H1 is more than H0 and less than H3; the mid-tooth region 2012 is disposed adjacent to the port interface 203.
Preferably, a heat dissipation gap is left between the middle toothed region 2012 and the port interface 203. This has the advantage that the heat sink gap can better dissipate the heat of the port interface 203.
In some embodiments, as shown in connection with fig. 4a, 4b, 5a, 5b, the main function board 40 and the large heat sink 30 form a large structural member 200, and the port board 20 and the small heat sink 10 form a small structural member 100. The large structural member 200 and the small structural member 100 are detachably connected.
Alternatively, as shown in connection with fig. 4a, 4b, 5a, 5b, the small structural member 100 further includes a small shield cover 50 disposed between the port plate 20 and the large heat sink 30. And/or, in some embodiments, the large structural member 200 further includes a large shielding cover 60 disposed below the main function board 40. And/or, in some embodiments, the large structural member 200 further includes a cosmetic cover 70 disposed under the large shield cover.
In some embodiments, the K-shaped heat dissipation tooth profile of the heat dissipation system with the K-shaped heat dissipation tooth profile in the embodiments of the present invention is compared with the existing tooth profile, and the tooth height, i.e., the volume, required by each tooth profile is compared on the premise of ensuring that the critical chip temperature is equivalent by increasing the tooth heights of different tooth profiles, as shown in fig. 9. As can be seen from fig. 9, the K-tooth can achieve the lowest tooth height, i.e., the smallest volume, for the critical die temperature.
Therefore, the K-type heat dissipation is most excellent in heat dissipation on the dual-plate pRRU. Adopt K type tooth can promote the heat dissipation of two board pRRU, the mature product that the volume reduces current the same consumption in industry, minimum volume by 0.2L reduces 6%, greatly promotes product market competition.
In some embodiments, the K-pattern cooling profile may also be evolved to form the dual K-pattern cooling profile design shown in fig. 9a-9 b. As shown in fig. 6, 7, 9a, and 9b, the large heat sink 30 includes two sets of right-angle portions 202, the through portion 201 is disposed between the two sets of right-angle portions 202, and the closed edges of the two sets of right-angle portions 202 are respectively disposed in parallel with the through heat dissipation teeth on two sides of the through portion 201. Preferably, the area ratio of the two sets of right angle portions 202 is 1: 1.
In some embodiments of the present invention, a large heat sink 30 having a K-shaped heat dissipation tooth profile is further provided as shown in fig. 10a and 10b, and the K-shaped heat dissipation tooth profile of the large heat sink 30 is a single K-shape, which is the same as the large heat sink 30 in the heat dissipation system of the foregoing embodiment, and is not repeated herein.
In some embodiments of the present invention, a large heat sink 30 having a K-shaped heat dissipation tooth profile is further provided as shown in fig. 11a and 11b, where the K-shaped heat dissipation tooth profile of the large heat sink 30 is a double-K type, and is identical to the large heat sink 30 in the heat dissipation system of the foregoing embodiment, and the details are not repeated herein.
In other embodiments of the present invention, a heat dissipation device with a K-shaped heat dissipation tooth form is further provided, the heat dissipation device includes a large heat sink 30 and a small heat sink 20, and the large heat sink 30 is provided with a receiving position for receiving the small heat sink 10. The large heat sink 30 and the small heat sink 20 are the same as those in the heat dissipation system of the previous embodiment, and are not described herein again.
The large radiator with the K-shaped radiating tooth shape, the radiating device and the radiating system can be applied to pRRU products and any natural radiating products with double-plate structures and capable of being installed in a ceiling mode in the future.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that several modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered within the scope of the present invention.
Claims (10)
1. A large heat sink with K-shaped heat dissipation profiles, characterized in that the large heat sink (30) comprises a through portion (201) and a right-angled portion (202);
wherein the through part (201) comprises a plurality of mutually parallel through heat dissipation teeth;
the right-angle part (202) comprises a closed side and three open sides, the closed side is adjacent to the through part (201), the three open sides comprise a long side and two short sides, a plurality of radiating teeth are respectively arranged on the three open sides and are perpendicular to the edges, the radiating teeth on the short sides and the radiating teeth on the long side form a right angle at the joint, and respectively form a first right-angle area (2021) and a second right-angle area (2022), and the first right-angle area (2021), the second right-angle area (2022) and the through part (201) form a K-shaped radiating tooth shape.
2. The large heat sink with K-shaped heat dissipation teeth as claimed in claim 1, wherein the large heat sink (30) comprises two sets of the right-angle portions (202), the through portion (201) is disposed between the two sets of the right-angle portions (202), and the closed edges of the two sets of the right-angle portions (202) are disposed back to back in parallel with the through heat dissipation teeth on both sides of the through portion (201).
3. The heat dissipation device with the K-shaped heat dissipation tooth form is characterized by comprising a large heat radiator (30) and a small heat radiator (10), wherein the large heat radiator (30) comprises a through part (201) and a right-angle part (202), and the large heat radiator (30) is provided with an accommodating position for accommodating the small heat radiator (10);
wherein the through part (201) comprises a plurality of mutually parallel through heat dissipation teeth;
the right-angle portion (202) comprises a closed edge and three open edges, the closed edge is adjacent to the through portion (201), the three open edges comprise a long edge and two short edges, a plurality of radiating teeth are arranged on the three open edges and perpendicular to the edges respectively, the radiating teeth on the two short edges form right angles with the radiating teeth on the long edge at the joint position respectively, a first right-angle area (2021) and a second right-angle area (2022) are formed respectively, and the first right-angle area (2021), the second right-angle area (2022) and the through portion (201) form a K-shaped radiating tooth shape.
4. The heat sink with K-shaped heat dissipation teeth as claimed in claim 3, wherein the large heat sink (30) comprises two sets of the right-angled portions (202), the through portion (201) is disposed between the two sets of the right-angled portions (202), and the closed edges of the two sets of the right-angled portions (202) are disposed back to back in parallel with the through heat dissipation teeth on both sides of the through portion (201).
5. The heat sink with K-shaped heat dissipating tooth profile according to claim 3 or 4, wherein the through portion (201) is provided with a low tooth area (2011) having a tooth height of H1, the accommodating portion is located in the low tooth area (2011), the highest tooth height of the large heat sink (30) is H3, and H1 < H3.
6. A heat dissipation system with a K-shaped heat dissipation tooth form is characterized by comprising a main function board (40), a large radiator (30), a port board (20) and a small radiator (10) which are sequentially arranged from bottom to top; the large radiator (30) comprises a through part (201) and a right-angle part (202), and an accommodating position for accommodating the port plate (20) is arranged on the large radiator (30);
wherein the through part (201) comprises a plurality of mutually parallel through heat dissipation teeth;
the right-angle part (202) comprises a closed side and three open sides, the closed side is adjacent to the through part (201), the three open sides comprise a long side and two short sides, a plurality of radiating teeth are respectively arranged on the three open sides and are perpendicular to the edges, the radiating teeth on the short sides and the radiating teeth on the long side form a right angle at the joint, and respectively form a first right-angle area (2021) and a second right-angle area (2022), and the first right-angle area (2021), the second right-angle area (2022) and the through part (201) form a K-shaped radiating tooth shape.
7. The heat dissipating system with K-shaped heat dissipating tooth profile as set forth in claim 6, wherein the large heat sink (30) comprises two sets of the right-angled portions (202), the through portion (201) is disposed between the two sets of the right-angled portions (202), and the closed edges of the two sets of the right-angled portions (202) are disposed back to back in parallel with the through heat dissipating teeth on both sides of the through portion (201).
8. The heat dissipating system with K-shaped heat dissipating tooth profile as claimed in claim 7, wherein the area ratio of the two sets of the right angle portions (202) is 1: 1.
9. The heat dissipation system with K-shaped heat dissipation tooth profile according to any one of claims 6 to 8, wherein a low tooth area (2011) with a tooth height of H1 is disposed on the through portion (201), the receiving position is located in the low tooth area (2011), a highest tooth height of the large heat sink (30) is H3, and H1 < H3.
10. The heat dissipation system with K-shaped heat dissipation profile as defined in claim 9, wherein the port plate (20) includes a port interface (203); the large radiator (30) further comprises a middle tooth area (2012), the middle tooth area (2012) comprises a plurality of middle heat dissipation teeth, the middle heat dissipation teeth are parallel to each other, the height of the middle heat dissipation teeth is H0, and H1 is greater than H0 and is greater than H3; the mid-tooth region (2012) is disposed adjacent to the port interface (203).
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| CN106132163A (en) * | 2016-07-14 | 2016-11-16 | 陕西黄河集团有限公司 | A kind of T-shaped air duct heat dissipating device using trapezoidal radiating fin |
| CN210725817U (en) * | 2019-09-04 | 2020-06-09 | 中兴通讯股份有限公司 | Composite tooth radiator and communication base station |
| CN211481798U (en) * | 2019-12-27 | 2020-09-11 | 大唐移动通信设备有限公司 | Heat radiator |
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