WO2021008629A1 - 一种齿片、散热器和通信设备 - Google Patents

一种齿片、散热器和通信设备 Download PDF

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Publication number
WO2021008629A1
WO2021008629A1 PCT/CN2020/110451 CN2020110451W WO2021008629A1 WO 2021008629 A1 WO2021008629 A1 WO 2021008629A1 CN 2020110451 W CN2020110451 W CN 2020110451W WO 2021008629 A1 WO2021008629 A1 WO 2021008629A1
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WIPO (PCT)
Prior art keywords
zone
channel
longitudinal
root
tooth piece
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Application number
PCT/CN2020/110451
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English (en)
French (fr)
Inventor
惠晓卫
洪宇平
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华为技术有限公司
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Publication of WO2021008629A1 publication Critical patent/WO2021008629A1/zh

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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
    • 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

Definitions

  • the embodiments of the present application relate to the field of mechanical technology, and more specifically, to gears, radiators, and communication equipment.
  • a radiator is usually provided on the communication device, and the radiator is used to provide heat dissipation for the communication device.
  • the heat sink includes a base plate and heat dissipation teeth fixed on the base plate, and the inside of the heat dissipation teeth is solid.
  • the height of the heat dissipation teeth needs to be continuously increased when the length and width of the radiator are fixed.
  • the heat dissipation efficiency of the heat dissipating teeth will decrease as the height increases, which results in the increase in the heat dissipation capacity of the heat sink not matching the increase in the weight of the heat sink.
  • the embodiments of the present application provide a gear fin, a heat sink, and a communication device, which improve the heat dissipation efficiency of the heat sink when the length and width of the heat sink are fixed.
  • an embodiment of the present application provides a tooth piece, which comprises a root portion, a tip portion and a spacer belt.
  • the root part is in contact with the heating element outside the tooth piece
  • the tip is located on the side of the tooth piece away from the heating element
  • the spacing band is located between the root part and the tip.
  • a heated zone is formed between the root and the spacer zone
  • a cooling zone is formed between the spacer zone and the tip
  • a first channel and a second channel are formed between the heated zone and the cooling zone.
  • Both the heating zone and the cooling zone have at least one longitudinal pipeline, and at least one longitudinal pipeline of the heating zone and at least one longitudinal pipeline of the cooling zone are communicated with each other through a first channel and a second channel.
  • the position of the spacer band corresponds to the position of the heating element.
  • the working fluid in the tooth plate will circulate between the longitudinal pipeline of the heated zone, the first channel, the longitudinal pipeline of the cooling zone, the second channel, and the longitudinal pipeline of the heated zone after being heated, thereby So that the longitudinal pipeline in the heated area can be supplemented with the cooled working fluid in time, so that the longitudinal pipeline in the heated area can continuously absorb the heat of the heating element, and then can effectively cool the heating element, so the embodiment of the application provides
  • the gear can improve the heat dissipation efficiency of the gear while the length and width are fixed.
  • the fluid level of the working fluid in the gear is lower than the highest position of the spacer belt, and the fluid level of the working fluid in the gear is higher than The highest position of the heating element and the lowest position of the heating element are higher than the lowest position of the spacer belt.
  • this can ensure that the contact part of the heating element and the tooth piece is completely covered by the working fluid, so that the entire surface of the heating component can be cooled, and it can also ensure that the circulating working fluid in the tooth piece can cover the heating element The entire surface.
  • the length of the spacer band is greater than the length of the heating element.
  • the hydraulic diameter of at least one longitudinal pipeline in the heating zone is greater than or equal to the hydraulic diameter of at least one longitudinal pipeline in the cooling zone, and the hydraulic diameter is the ratio of four times the cross-sectional area of the flow to the circumference .
  • the hydraulic diameter of the longitudinal pipeline of the heating zone is greater than the hydraulic diameter of the longitudinal pipeline of the cooling zone
  • the working fluid enters the pipe with a small width from the pipe with a large width, so the flow rate of the working fluid in the longitudinal pipe entering the cooling zone will increase, thereby driving the entire circulation speed of the working fluid in the gear plate to accelerate.
  • the cooling rate of the working fluid will be faster, and the effect of cooling the heating element 90 will be better.
  • the embodiments of the present application provide a tooth piece, which includes a root portion, a tip portion and a spacer belt.
  • the root part is in contact with the heating element outside the tooth piece
  • the tip is located on the side of the tooth piece away from the heating element
  • the spacing band is located between the root part and the tip.
  • a heated zone is formed between the root and the spacer zone
  • a cooling zone is formed between the spacer zone and the tip
  • a first channel and a second channel are formed between the heated zone and the cooling zone.
  • Both the heating zone and the cooling zone have at least two longitudinal pipelines. The length of the at least two pipelines in the heating zone is changed from long to shorter in the direction where the roots point to the slight part, and the length of at least two pipelines in the cooling zone is changed from short lengthen.
  • At least two longitudinal pipelines of the heating zone are both connected with the first channel, and the flow direction of the working fluid in the first channel is that the root points to the slight part.
  • At least two longitudinal pipelines of the cooling zone are both connected with the second channel, and the flow direction of the working fluid in the second channel is slightly pointing toward the root.
  • the heat generated by the heating element will be transferred to the heated area through the root of the toothed piece, and the working fluid in the longitudinal pipeline of the heated area will boil and gush upwards after being heated. Since the number of vertical pipelines from bottom to top in the heating zone is increased from less to top, the resistance of the working fluid flowing in the longitudinal pipelines of the heating zone is reduced, so the working fluid flowing in the longitudinal pipelines of the heating zone spews upwards The liquid level will be higher, so that the working fluid in the longitudinal pipeline of the heating zone can more easily enter the longitudinal pipeline of the cooling zone through the first channel.
  • At least two longitudinal pipelines of the heated zone are both connected to the second channel, and the flow direction of the working fluid in the second channel is slightly pointing toward the root.
  • the at least two longitudinal pipelines of the cooling zone are both connected with the first channel, and the flow direction of the working fluid in the first channel is the root to the slight part.
  • the heat generated by the heating element will be transferred to the heated area through the root of the toothed piece, and the working fluid in the longitudinal pipeline of the heated area will boil and gush upwards after being heated. Since the number of vertical pipelines from bottom to top in the heating zone has increased from more to less, the flow velocity of the working fluid in the longitudinal pipelines of the heating zone is increased. Therefore, the working fluid flowing in the longitudinal pipelines of the heating zone spews upwards. The liquid level will be higher, so that the working fluid in the longitudinal pipeline of the heating zone can more easily enter the longitudinal pipeline of the cooling zone through the first channel.
  • the hydraulic diameter of the at least two longitudinal pipelines in the heating zone is greater than or equal to the hydraulic diameter of the at least two longitudinal pipelines in the cooling zone, and the hydraulic diameter is four times the cross-sectional area of the flow and Perimeter ratio.
  • the embodiments of the present application provide a tooth piece, which includes a root portion, a slight portion and at least two spacer belts.
  • the root part is in contact with the heating element outside the tooth piece
  • the slight part is located on the side of the tooth piece away from the heating element
  • at least two spacer bands are located between the root part and the slight part.
  • At least two heated zones are formed between the root and at least two spacers
  • at least two cooling zones are formed between the at least two spacers and the tip
  • a first channel is formed between the at least two heated zones and the at least two cooling zones
  • the second channel and at least one mixing channel the at least one mixing channel is located between two adjacent interval bands in the at least two interval bands.
  • At least two heating zones and at least two cooling zones communicate with each other through a first channel, a second channel and at least one mixing channel.
  • the gears can not only improve the heat dissipation efficiency of the gears when the length and width are fixed, but also can dissipate heat for at least two heating elements at the same time, thereby reducing the number of gears.
  • each of the at least two heating zones has at least one longitudinal pipeline
  • each of the at least two cooling zones has at least one longitudinal pipeline.
  • the hydraulic diameter of at least one longitudinal pipeline in each of the at least two heating zones is greater than or equal to the hydraulic diameter of at least one longitudinal pipeline in each of the at least two cooling zones, the hydraulic diameter being the cross-sectional area of the flow The ratio of four times to the circumference.
  • an embodiment of the present application provides a heat sink, which includes any possible implementation manner of the first aspect and the first aspect, and any possible implementation manner of the second aspect and the second aspect Or the tooth piece disclosed in the third aspect and any possible implementation of the third aspect.
  • it also includes a substrate.
  • the root of at least one tooth is connected to the first surface of the substrate, the second surface of the substrate is in contact with the heating element outside the heat sink, and the slight part of the at least one tooth is located on the side of the tooth away from the substrate.
  • the embodiments of the present application provide a communication device, the communication device including the first aspect and any one of the possible implementation manners of the first aspect, the second aspect and any one of the possible implementation manners of the second aspect Or the tooth piece disclosed in the third aspect and any possible implementation of the third aspect.
  • it also includes a substrate and a heating element.
  • the root of at least one tooth is connected to the first surface of the substrate, the second surface of the substrate is in contact with the heating element, and the slight part of the at least one tooth is located on the side of the tooth away from the substrate.
  • FIG. 1 shows a schematic diagram of the structure of the tooth piece 10 provided by the embodiment of this application
  • FIG. 2 shows a schematic diagram of the flow of working fluid inside the tooth plate 10 provided by the embodiment of this application;
  • FIG. 3 shows a schematic structural diagram of another tooth piece 20 provided by an embodiment of this application.
  • FIG. 4 shows a schematic diagram of another working fluid flow inside a tooth plate 20 according to an embodiment of this application
  • FIG. 5 shows a schematic structural diagram of yet another tooth piece 30 provided by an embodiment of this application.
  • FIG. 6 shows a schematic diagram of another working fluid flow inside a tooth plate 30 provided by an embodiment of this application.
  • FIG. 7 shows a schematic structural diagram of yet another tooth piece 40 provided by an embodiment of this application.
  • FIG. 8 shows a schematic diagram of another working fluid flow inside a tooth plate 40 according to an embodiment of this application.
  • FIG. 9 shows a schematic structural diagram of a heat sink provided by an embodiment of this application.
  • FIG. 10 shows a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 1 shows a schematic diagram of the structure of the tooth plate 10 according to an embodiment of the application
  • FIG. 2 shows a schematic diagram of the internal working fluid flow of the tooth plate 10 according to an embodiment of the application. .
  • the tooth piece 10 includes a root 11, a tip 12 and a spacer belt 13, wherein the root 11 is in contact with the heating element 90 outside the tooth piece 10, and the tip 12 is located on the tooth piece.
  • the spacer belt 13 On the side of 10 away from the heating element 90, the spacer belt 13 is located between the root 11 and the tip 12.
  • a heating zone 14 is formed between the root 11 and the spacer zone 13
  • a cooling zone 15 is formed between the spacer zone 13 and the stub 12, and a first channel 16 and a second channel 17 are formed between the heating zone 14 and the cooling zone 15.
  • Both the heating zone 14 and the cooling zone 15 have at least one longitudinal pipeline, and at least one longitudinal pipeline 18 of the heating zone 14 and at least one longitudinal pipeline 19 of the cooling zone 15 are communicated with each other through the first channel 16 and the second channel 17, separated from each other.
  • the position of the belt 13 corresponds to the position of the heating element 90.
  • a working medium for heat dissipation is pre-installed inside the tooth plate 10.
  • the heat generated by the heating element 90 will be transferred to the heating zone 14 through the root 11 of the sprocket 10, and the working fluid in the longitudinal pipeline 18 of the heating zone 14 will boil and spout upwards after being heated.
  • the working fluid in the longitudinal pipeline 18 of the heating zone 14 boils and spews upward, a part of the working fluid in the longitudinal pipeline 18 of the heating zone 14 will enter the longitudinal pipeline 19 of the cooling zone 15 through the first channel 16 in.
  • the working fluid entering the longitudinal pipeline 19 of the cooling zone 15 from the first channel 16 will flow downward under the influence of gravity, and the temperature of the working fluid entering the longitudinal pipeline 19 of the cooling zone 15 will gradually drop.
  • the cooled working fluid in the longitudinal pipeline 19 of the cooling zone 15 will flow into the longitudinal pipeline 18 of the heating zone 14 through the second channel 17, and the cooled working fluid flowing into the longitudinal pipeline 18 of the heating zone 14 will again Absorb the heat emitted by the heating element 90.
  • the working fluid in the tooth plate 10 will be in the longitudinal pipeline 18 of the heating zone 14, the first channel 16, the longitudinal pipeline 19 of the cooling zone 15, the second channel 17 and
  • the longitudinal pipelines 18 of the heating zone 14 circulate flow, so that the longitudinal pipelines 18 of the heating zone 14 can be supplemented with the cooled working fluid in time, so that the longitudinal pipelines 18 of the heating zone 14 can continuously absorb the heating elements 90
  • the heat of this application can effectively cool down the heating element 90. Therefore, the gear piece provided by the embodiment of the present application can improve the heat dissipation efficiency of the gear piece when the length and width are fixed.
  • the number of longitudinal pipes 18 in the heating zone 14 is three, and the number of longitudinal pipes 19 in the cooling zone 15 is two.
  • the number of the longitudinal pipelines 18 of the heating zone 14 and the longitudinal pipelines 19 of the cooling zone 15 can be set according to actual needs.
  • a plurality of spacer blocks 110 are arranged in the heating zone 14 and the cooling zone 15 to form the longitudinal pipeline 18 and the longitudinal pipeline 19.
  • the plurality of spacer blocks 110 in the heating zone 14 and the cooling zone 15 will also form a transverse pipeline of the heating zone 14 and a transverse pipeline of the cooling zone 15.
  • the horizontal pipeline in the heating zone 14 and the longitudinal pipeline 18 in the heating zone 14 can communicate with each other.
  • the longitudinal pipeline with a higher liquid level The liquid flows into the longitudinal pipeline with a lower liquid level through the transverse pipeline, so that the pressure and temperature of the liquid and gas in the heated zone 14 are balanced.
  • the first channel 16 and the second channel 17 can also be formed by arranging a plurality of spacer blocks 110.
  • the length of the spacer belt 13 needs to be greater than the length of the heating element 90, and the position of the spacer belt 13 needs to be the same as The position of the heating element 90 corresponds.
  • the liquid level of the working medium in the gear 10 needs to be lower than the highest position of the spacer belt 13, and the liquid level of the working medium in the gear 10 is higher than the heating element
  • the highest position of the heating element 90, the lowest position of the heating element 90 needs to be higher than the lowest position of the spacer belt 13, so as to ensure that the contact part of the heating element 90 and the tooth piece 10 is completely covered by the working medium, which can be the entire surface of the heating element 90
  • the temperature is lowered, and it can also be ensured that the circulating working fluid in the tooth plate 10 can cover the entire surface of the heating element 90.
  • the hydraulic diameter of at least one longitudinal pipe 18 in the heating zone 14 is greater than or equal to the hydraulic diameter of at least one longitudinal pipe 19 in the cooling zone 15, and the hydraulic diameter is the flow The ratio of four times the cross-sectional area to the perimeter.
  • the hydraulic diameter of the longitudinal pipeline 18 of the heating zone 14 is greater than the hydraulic diameter of the longitudinal pipeline 19 of the cooling zone 15
  • the working fluid enters the cooling zone 15 from the longitudinal pipeline 18 of the heating zone 14 through the first channel 16 After the longitudinal pipeline 19, it is equivalent to that the working fluid enters the pipeline with a small width from a pipeline with a large width.
  • FIG. 3 shows a schematic structural diagram of another tooth piece 20 provided in an embodiment of the application
  • FIG. 4 shows another tooth piece 20 provided in an embodiment of the application. Schematic diagram of internal working fluid flow.
  • the sprocket 20 includes a root 21, a stub portion 22 and a spacer belt 23.
  • the root 21 is in contact with the heating element 90 outside the sprocket 20, and the sprocket 22 is located on the sprocket.
  • the spacer tape 23 is located between the root 21 and the tip 22.
  • a heating zone 24 is formed between the root 21 and the spacer belt 23, a cooling zone 25 is formed between the spacer zone 23 and the stub part 22, and a first channel 26 and a second channel 27 are formed between the heating zone 24 and the cooling zone 25. Both the heating zone 24 and the cooling zone 25 have at least two longitudinal pipelines.
  • the lengths of the at least two pipelines 28 of the heating zone 24 are changed from long to short, and at least two of the cooling zone 25
  • the length of each pipe 29 is changed from short to long.
  • the at least two longitudinal pipelines 28 of the heating zone 24 are both connected to the first channel 26, the flow direction of the working fluid in the first channel 26 is that the root 21 points to the tip 22, and the at least two longitudinal pipelines 29 of the cooling zone 25 Both are connected to the second channel 27, and the flow direction of the working fluid in the second channel 27 is that the tip 22 points to the root 21.
  • a working medium for heat dissipation is pre-installed inside the tooth piece 20. After the heating element 90 generates heat, the heat generated by the heating element 90 will be transferred to the heating zone 24 through the root 21 of the sprocket 20, and the working fluid in the longitudinal pipeline 28 of the heating zone 24 will boil and spray upwards after being heated.
  • the longitudinal pipeline 28 in the heated zone 24 Since the number of vertical pipelines 28 from bottom to top in the heated zone 24 is increased from less to upper, thereby reducing the resistance of the working fluid to flow in the longitudinal pipeline 28 of the heated zone 24, the longitudinal pipeline 28 in the heated zone 24 The liquid level of the flowing working fluid that spews upward will be higher, so that the working fluid in the longitudinal pipeline 28 of the heating zone 24 can more easily enter the longitudinal pipeline of the cooling zone 25 through the first passage 26.
  • the hydraulic diameter of at least one longitudinal pipe 28 in the heating zone 24 is greater than or equal to the hydraulic diameter of at least one longitudinal pipe 29 in the cooling zone 25, and the hydraulic diameter is the flow The ratio of four times the cross-sectional area to the perimeter.
  • the hydraulic diameter of the longitudinal pipeline 28 of the heating zone 24 is greater than the hydraulic diameter of the longitudinal pipeline 29 of the cooling zone 25
  • the working fluid enters the cooling zone 25 from the longitudinal pipeline 28 of the heating zone 24 through the first channel 26.
  • the longitudinal pipeline 29 it is equivalent to that the working fluid enters the pipeline with a small width from a pipeline with a large width.
  • FIG. 5 shows a schematic structural diagram of another tooth piece 30 provided by an embodiment of the application
  • FIG. 6 shows another tooth piece 30 provided by an embodiment of the application. Schematic diagram of internal working fluid flow.
  • the tooth piece 30 includes a root 31, a tip 32 and a spacer 33.
  • the root 31 is in contact with the heating element 90 outside the tooth piece 30, and the tip 32 is located on the tooth piece.
  • the spacer 33 is located between the root 31 and the tip 32.
  • a heating zone 34 is formed between the root 31 and the spacer belt 33, a cooling zone 35 is formed between the spacer zone 33 and the tip 32, and a first channel 36 and a second channel 37 are formed between the heating zone 34 and the cooling zone 35. Both the heating zone 34 and the cooling zone 35 have at least two longitudinal pipelines.
  • the length of the at least two pipelines 38 of the heating zone 34 is changed from long to short, and at least two of the cooling zone 35
  • the length of each pipe 39 is changed from short to long.
  • the at least two longitudinal pipes 38 of the heating zone 34 are both connected to the second passage 37, the flow direction of the working fluid in the second passage 37 is that the tip 32 points to the root 31, and the at least two longitudinal pipes 39 of the cooling zone 35 Both are connected with the first channel 36, and the flow direction of the working fluid in the first channel 36 is that the root 31 points to the tip 32.
  • a working medium for heat dissipation is pre-installed inside the tooth plate 30. After the heating element 90 generates heat, the heat generated by the heating element 90 will be transferred to the heated area 34 through the root 31 of the sprocket 30, and the working fluid in the longitudinal pipeline 38 of the heated area 34 will boil and spray upwards after being heated.
  • the number of vertical pipes 38 from bottom to top in the heating zone 34 increases from more to less, thereby increasing the flow velocity of the working fluid in the longitudinal pipe 38 of the heating zone 34, it flows in the longitudinal pipe 38 of the heating zone 34
  • the upward spraying level of the working fluid will be higher, so that the working fluid in the longitudinal pipeline 38 of the heated zone 34 can more easily enter the longitudinal pipeline of the cooling zone 35 through the first passage 36.
  • the hydraulic diameter of at least one longitudinal pipe 38 in the heating zone 34 is greater than or equal to the hydraulic diameter of at least one longitudinal pipe 39 in the cooling zone 35, and the hydraulic diameter is the flow The ratio of four times the cross-sectional area to the perimeter.
  • the hydraulic diameter of the longitudinal pipeline 38 of the heating zone 34 is greater than the hydraulic diameter of the longitudinal pipeline 39 of the cooling zone 35, the working fluid enters the cooling zone 35 from the longitudinal pipeline 38 of the heating zone 34 through the first channel 36 After the longitudinal pipeline 39, it is equivalent to that the working fluid enters the pipeline with a small width from a pipeline with a large width.
  • FIG. 7 shows a schematic structural diagram of another tooth piece 40 provided by an embodiment of the application
  • FIG. 8 shows another tooth piece 40 provided by an embodiment of the application. Schematic diagram of internal working fluid flow.
  • the tooth piece 40 includes a root 41, a slight portion 42, and at least two spacer belts (431, 432), wherein the root 42 and the heating element (91, 432) outside the tooth piece 40 92) In contact, the tip 42 is located on the side of the tooth piece 40 away from the heating element (91, 92), and at least two spacers (431, 432) are located between the root 41 and the tip 42.
  • At least two heating zones (441, 442) are formed between the root 41 and the at least two spacers (431, 432), and at least two cooling zones ( 451, 452), a first channel 461, a second channel 472 and at least one mixing channel 410 are formed between at least two heating zones (441, 442) and at least two cooling zones (451, 452), at least one mixing channel 410 It is located between two adjacent spacing strips (431, 432) among at least two spacing strips (431, 432). At least two heating zones (441, 442) and at least two cooling zones (451, 452) communicate with each other through a first channel 461, a second channel 472, and at least one mixing channel 410.
  • the at least one mixing channel 410 includes a third channel 471 and a fourth channel 462.
  • the tooth plate 40 is suitable for dissipating heat for at least two heating elements (91, 92).
  • the heating element 91 After the heating element 91 generates heat, the heat generated by the heating element 91 will be transferred to the heated zone 441 through the root 41 of the toothed piece 40, and the working fluid in the longitudinal pipeline 481 of the heated zone 441 will boil and spray upwards after being heated.
  • the working fluid in the longitudinal pipeline 481 of the heating zone 441 boils and spews upward, a part of the working fluid in the longitudinal pipeline 481 of the heating zone 441 will enter the longitudinal pipeline 491 of the cooling zone 451 through the first channel 461. in.
  • the working fluid entering the longitudinal pipeline 491 of the cooling zone 451 from the first channel 461 will flow downward under the influence of gravity, and the temperature of the working fluid entering the longitudinal pipeline 491 of the cooling zone 451 will gradually drop.
  • the cooled working fluid in the longitudinal pipeline 491 of the cooling zone 451 will flow into the longitudinal pipeline 481 of the heating zone 441 through the third channel 471, and the cooled working fluid flowing into the longitudinal pipeline 481 of the heating zone 441 will again The heat emitted by the heating element 91 is absorbed.
  • the heat generated by the heating element 92 will be transferred to the heated zone 442 through the root 41 of the sprocket 40, and the working fluid in the longitudinal pipeline 482 of the heated zone 442 will boil and gush upwards after being heated. .
  • the working fluid in the longitudinal pipeline 482 of the heating zone 442 boils and spews upward, a part of the working fluid in the longitudinal pipeline 482 of the heating zone 442 will enter the longitudinal pipeline 492 of the cooling zone 452 through the fourth channel 462. in.
  • the working fluid entering the longitudinal pipeline 492 of the cooling zone 452 from the fourth channel 462 will flow downward under the influence of gravity, and the temperature of the working fluid entering the longitudinal pipeline 492 of the cooling zone 452 will gradually drop.
  • the cooled working fluid in the longitudinal pipeline 492 of the cooling zone 452 will flow into the longitudinal pipeline 482 of the heating zone 442 through the second channel 472, and the cooled working fluid flowing into the longitudinal pipeline 482 of the heating zone 442 will again The heat emitted by the heating element 92 is absorbed.
  • the working fluid in the tooth plate 40 will be in the longitudinal pipeline 481 of the heating zone 441, the first channel 16, the longitudinal pipeline 491 of the cooling zone 451, the third channel 471 and
  • the longitudinal pipelines 481 of the heating zone 441 circulate between them, so that the longitudinal pipelines 481 of the heating zone 441 can be supplemented with the cooled working fluid in time, so that the longitudinal pipelines 481 of the heating zone 441 can continuously absorb the heating elements 91 The heat of this can effectively cool down the heating element 91.
  • the working fluid in the sprocket 40 will circulate between the longitudinal pipeline 482 of the heating zone 442, the fourth channel 462, the longitudinal pipeline 492 of the cooling zone 452, the second channel 472 and the longitudinal pipeline 482 of the heating zone 442.
  • the longitudinal pipeline 482 of the heating zone 442 can be supplemented with the cooled working fluid in time, so that the longitudinal pipeline 482 of the heating zone 442 can continuously absorb the heat of the heating element 92, which can effectively serve as the heating element 92 Cool down.
  • the sprocket 40 provided by the embodiment of the present application can not only improve the heat dissipation efficiency of the sprocket under the condition of fixed length and width, but also can radiate heat for at least two heating elements (91, 92) at the same time, thereby reducing the number of teeth. Number of pieces 40.
  • each of the at least two heating zones (441, 442) has at least one longitudinal pipeline
  • each of the at least two cooling zones (451, 452) Each cooling zone has at least one longitudinal pipeline.
  • the hydraulic diameter of at least one longitudinal pipeline in each of the at least two heating zones (441, 442) is greater than or equal to the hydraulic diameter of at least one longitudinal pipeline in each of the at least two cooling zones (451, 452) Diameter, the hydraulic diameter is the ratio of four times the cross-sectional area of the flow to the circumference.
  • the working fluid enters the cooling zone 451 from the longitudinal pipeline 481 of the heating zone 441 through the first channel 16 After the longitudinal pipeline 491, it is equivalent to the working fluid enters the pipeline with a smaller width from a pipeline with a large width. Therefore, the flow rate of the working fluid in the longitudinal pipeline 491 entering the cooling zone 451 will increase, thereby driving the upper half of the sprocket 40 The circulation speed of the working fluid in this area is accelerated, so the cooling speed of the working fluid in the upper half area of the tooth plate 40 will be faster, and the effect of cooling the heating element 91 will be better.
  • the working fluid enters the cooling zone from the longitudinal pipeline 482 of the heating zone 442 through the fourth channel 462.
  • the longitudinal pipeline 492 of 452 it is equivalent to that the working fluid enters the pipeline with a small width from a pipeline with a large width. Therefore, the flow rate of the working fluid in the longitudinal pipeline 492 entering the cooling zone 452 will increase, thereby driving the downward movement of the sprocket 40.
  • the entire circulation speed of the working fluid in the half area is accelerated, so the cooling speed of the working fluid in the lower half area of the sprocket 40 will be faster, and the effect of cooling the heating element 92 will be better.
  • the tooth piece 40 has two spacer belts (431, 432) is shown. If it is necessary to dissipate heat from 3 or more heating elements, then 3 or more spacer belts can be arranged in the tooth plate 40 to divide more heat receiving areas for heat dissipation of the heating elements.
  • FIG. 9 shows a schematic structural diagram of a heat sink provided by an embodiment of this application.
  • the heat sink includes at least one tooth piece 50 and a base plate 60, wherein the root of the at least one tooth piece 50 is connected to the first surface of the base plate 60, and the second surface of the base plate 60 is connected to the heating element outside the heat sink (not shown in FIG. 9 Out) in contact, at least one of the sprocket 50 has a slight portion located on the side of the sprocket 50 away from the base plate 60.
  • At least one tooth piece 50 may be the tooth piece 10 shown in FIG. 1, at least one tooth piece 50 may also be the tooth piece 20 shown in FIG. 3, and at least one tooth piece 50 may also be It is the tooth piece 30 shown in FIG. 5, at least one tooth piece 50 may also be the tooth piece 40 shown in FIG. 7.
  • FIG. 10 shows a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device includes at least one sprocket 50, a substrate 60 and a heating element 90, wherein the root of at least one sprocket 50 is connected to the first surface of the substrate 60, the second surface of the substrate 60 is in contact with the heating element 90, and at least one The slight part of the tooth piece 50 is located on the side of the tooth piece 50 away from the base plate 60.
  • At least one tooth piece 50 may be the tooth piece 10 shown in FIG. 1, at least one tooth piece 50 may also be the tooth piece 20 shown in FIG. 3, and at least one tooth piece 50 may also be It is the tooth piece 30 shown in FIG. 5, at least one tooth piece 50 may also be the tooth piece 40 shown in FIG. 7.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Details Of Gearings (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

本申请实施例公开了一种齿片、散热器和通信设备，该齿片包括根部、稍部和间隔带。根部与齿片外部的发热元件相接触，稍部位于齿片上远离发热元件的一边，间隔带位于根部和稍部之间。根部和间隔带之间形成受热区，间隔带和稍部之间形成冷却区，受热区和冷却区之间形成第一通道和第二通道。间隔带的位置与发热元件的位置相对应。齿片内的工质受热后会在受热区的纵向管路、第一通道、冷却区的纵向管路、第二通道和受热区的纵向管路之间循环流动，从而使得受热区的纵向管路内可以及时补充冷却后的工质，以使受热区的纵向管路可以不断的吸收发热元件的热量，进而可以有效的为发热元件降温。

Description

一种齿片、散热器和通信设备 技术领域
本申请实施例涉及机械技术领域，更具体的说，涉及齿片、散热器和通信设备。
背景技术
通信设备上通常会设置有散热器，散热器用于为通信设备提供散热。散热器包括基板和固定在基板上的散热齿，散热齿的内部是实心的。
随着通信设备的热耗逐步增加，在散热器的长宽固定的情况下，散热齿的高度需要不断的增加。但是，散热齿的散热效率会随着高度的增加而降低，从而导致散热器的散热能力的增加与散热器的重量的增加不匹配。
因此，如何在散热器的长宽固定的情况下提高散热器的散热效率，成为目前亟须解决的问题。
发明内容
本申请实施例提供一种齿片、散热器和通信设备，在散热器的长宽固定的情况下提高散热器的散热效率。
本申请实施例是这样实现的：
第一方面，本申请实施例提供了一种齿片，该齿片包括根部、稍部和间隔带。其中，根部与齿片外部的发热元件相接触，稍部位于齿片上远离发热元件的一边，间隔带位于根部和稍部之间。根部和间隔带之间形成受热区，间隔带和稍部之间形成冷却区，受热区和冷却区之间形成第一通道和第二通道。受热区和冷却区均具有至少一条纵向管路，受热区的至少一条纵向管路与冷却区的至少一条纵向管路通过第一通道和第二通道相互连通。间隔带的位置与发热元件的位置相对应。
在第一方面中，齿片内的工质受热后会在受热区的纵向管路、第一通道、冷却区的纵向管路、第二通道和受热区的纵向管路之间循环流动，从而使得受热区的纵向管路内可以及时补充冷却后的工质，以使受热区的纵向管路可以不断的吸收发热元件的热量，进而可以有效的为发热元件降温，所以本申请实施例提供的齿片可以在长宽固定的情况下提高齿片的散热效率。
在一种可能的实现方式中，在齿片内的工质处于未被加热的状态下，齿片内工质的液位低于间隔带的最高位置，齿片内工质的液位高于发热元件的最高位置，发热元件的最低位置高于间隔带的最低位置。
其中，这样可以保证发热元件与齿片接触的部分完全被工质覆盖到，从而可以为发热元件的整个表面进行降温，而且，还可以保证齿片内处于循环流动的工质可以覆盖到发热元件的整个表面。
在一种可能的实现方式中，间隔带的长度大于发热元件的长度。
在一种可能的实现方式中，受热区中的至少一条纵向管路的水力直径大于或等于冷却区中的至少一条纵向管路的水力直径，水力直径为过流断面面积的四倍与周长之比。
其中，在受热区的纵向管路的水力直径大于冷却区的纵向管路的水力直径的情况 下，工质由受热区的纵向管路通过第一通道进入冷却区的纵向管路以后，相当于工质由宽度大的管路进入宽度小的管路，所以进入冷却区的纵向管路的工质的流速会增加，从而带动齿片内的工质的整个循环速度加快，所以齿片内的工质的冷却速度会更快，为发热元件90进行降温的效果也就更好。
第二方面，本申请实施例提供了一种齿片，该齿片包括根部、稍部和间隔带。其中，根部与齿片外部的发热元件相接触，稍部位于齿片上远离发热元件的一边，间隔带位于根部和稍部之间。根部和间隔带之间形成受热区，间隔带和稍部之间形成冷却区，受热区和冷却区之间形成第一通道和第二通道。受热区和冷却区均具有至少两条纵向管路，在根部指向稍部的方向上，受热区的至少两个管路的长度由长变短，冷却区的至少两个管路的长度由短变长。
在一种可能的实现方式中，受热区的至少两个纵向管路均与第一通道连通，第一通道内工质的流动方向为根部指向稍部。冷却区的至少两个纵向管路均与第二通道连通，第二通道内工质的流动方向为稍部指向根部。
其中，在发热元件产生热量以后，发热元件产生的热量会通过齿片的根部传递至受热区，受热区的纵向管路内的工质受热后会沸腾并向上喷涌。由于受热区内由下至上的纵向管路的数量由少变多，从而降低了工质在受热区的纵向管路内流动的阻力，所以在受热区的纵向管路内流动的工质向上喷涌的液位就会更高，从而使得受热区的纵向管路内的工质更容易通过第一通道进入冷却区的纵向管路内。
在一种可能的实现方式中，受热区的至少两个纵向管路均与第二通道连通，第二通道内工质的流动方向为稍部指向根部。冷却区的至少两个纵向管路均与第一通道连通，第一通道内工质的流动方向为根部指向稍部。
其中，在发热元件产生热量以后，发热元件产生的热量会通过齿片的根部传递至受热区，受热区的纵向管路内的工质受热后会沸腾并向上喷涌。由于受热区内由下至上的纵向管路的数量由多变少，从而增加了工质在受热区的纵向管路内的流速，所以在受热区的纵向管路内流动的工质向上喷涌的液位就会更高，从而使得受热区的纵向管路内的工质更容易通过第一通道进入冷却区的纵向管路内。
在一种可能的实现方式中，受热区中的至少两条纵向管路的水力直径大于或等于冷却区中的至少两条纵向管路的水力直径，水力直径为过流断面面积的四倍与周长之比。
第三方面，本申请实施例提供了一种齿片，该齿片包括根部、稍部和至少两个间隔带。其中，根部与齿片外部的发热元件相接触，稍部位于齿片上远离发热元件的一边，至少两个间隔带位于根部和稍部之间。根部和至少两个间隔带之间形成至少两个受热区，至少两个间隔带和稍部之间形成至少两个冷却区，至少两个受热区和至少两个冷却区之间形成第一通道、第二通道和至少一个混合通道，至少一个混合通道位于至少两个间隔带中相邻的两个间隔带之间。至少两个受热区与至少两个冷却区通过第一通道、第二通道和至少一个混合通道相互连通。
在第三方面中，齿片不仅可以在长宽固定的情况下提高齿片的散热效率，而且，还能够同时为至少两个发热元件进行散热，从而可以减少齿片的数量。
在一种可能的实现方式中，至少两个受热区中的每个受热区均具有至少一条纵向 管路，至少两个冷却区中的每个冷却区均具有至少一条纵向管路。至少两个受热区中每个受热区的至少一条纵向管路的水力直径大于或等于至少两个冷却区中每个冷却区的至少一条纵向管路的水力直径，水力直径为过流断面面积的四倍与周长之比。
第四方面，本申请实施例提供了一种散热器，该散热器包括第一方面及第一方面的任意一种可能的实现方式、第二方面及第二方面的任意一种可能的实现方式或第三方面及第三方面的任意一种可能的实现方式中公开的齿片。
在一种可能的实现方式中，还包括基板。至少一个齿片的根部连接在基板的第一表面上，基板的第二表面与散热器外部的发热元件相接触，至少一个齿片的稍部位于齿片上远离基板的一边。
第五方面，本申请实施例提供了一种通信设备，该通信设备包括第一方面及第一方面的任意一种可能的实现方式、第二方面及第二方面的任意一种可能的实现方式或第三方面及第三方面的任意一种可能的实现方式中公开的齿片。
在一种可能的实现方式中，还包括基板和发热元件。至少一个齿片的根部连接在基板的第一表面上，基板的第二表面与发热元件相接触，至少一个齿片的稍部位于齿片上远离基板的一边。
附图说明
图1所示的为本申请实施例提供的齿片10的结构示意图；
图2所示的为本申请实施例提供的齿片10内部工质流动的示意图；
图3所示的为本申请实施例提供的另一种齿片20的结构示意图；
图4所示的为本申请实施例提供的另一种齿片20内部工质流动的示意图；
图5所示的为本申请实施例提供的又一种齿片30的结构示意图；
图6所示的为本申请实施例提供的又一种齿片30内部工质流动的示意图；
图7所示的为本申请实施例提供的又一种齿片40的结构示意图；
图8所示的为本申请实施例提供的又一种齿片40内部工质流动的示意图；
图9示的为本申请实施例提供的一种散热器的结构示意图；
图10示的为本申请实施例提供的一种通信设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行描述。
请参见图1和图2所示，图1所示的为本申请实施例提供的齿片10的结构示意图，图2所示的为本申请实施例提供的齿片10内部工质流动的示意图。
在图1和图2所示的实施例中，齿片10包括根部11、稍部12和间隔带13，其中，根部11与齿片10外部的发热元件90相接触，稍部12位于齿片10上远离发热元件90的一边，间隔带13位于根部11和稍部12之间。根部11和间隔带13之间形成受热区14，间隔带13和稍部12之间形成冷却区15，受热区14和冷却区15之间形成第一通道16和第二通道17。受热区14和冷却区15均具有至少一条纵向管路，受热区14的至少一条纵向管路18与冷却区15的至少一条纵向管路19通过第一通道16和第二通道17相互连通，间隔带13的位置与发热元件90的位置相对应。
在图1和图2所示的实施例中，齿片10内部会预先装有用于散热的工质。在发热 元件90产生热量以后，发热元件90产生的热量会通过齿片10的根部11传递至受热区14，受热区14的纵向管路18内的工质受热后会沸腾并向上喷涌。在受热区14的纵向管路18内的工质沸腾后不断向上喷涌的过程中，受热区14的纵向管路18内的一部分工质会通过第一通道16进入冷却区15的纵向管路19中。由第一通道16进入冷却区15的纵向管路19内的工质受到重力的影响会向下流动，而且，进入冷却区15的纵向管路19内的工质的温度会逐渐下降。在冷却区15的纵向管路19内经过冷却的工质会通过第二通道17流入受热区14的纵向管路18内，流入受热区14的纵向管路18内的经过冷却的工质会再次吸收发热元件90散发的热量。
在图1和图2所示的实施例中，齿片10内的工质会在受热区14的纵向管路18、第一通道16、冷却区15的纵向管路19、第二通道17和受热区14的纵向管路18之间循环流动，从而使得受热区14的纵向管路18内可以及时补充冷却后的工质，以使受热区14的纵向管路18可以不断的吸收发热元件90的热量，进而可以有效的为发热元件90降温，所以本申请实施例提供的齿片可以在长宽固定的情况下提高齿片的散热效率。
在图1和图2所示的实施例中，受热区14的纵向管路18的数量为3个，冷却区15的纵向管路19的数量为2个。当然，可以根据实际需要来设置受热区14的纵向管路18和冷却区15的纵向管路19的数量。
在图1和图2所示的实施例中，通过在受热区14和冷却区15内设置多个间隔块110，从而形成纵向管路18和纵向管路19。当然，在受热区14和冷却区15内的多个间隔块110还会形成受热区14的横向管路和冷却区15的横向管路。受热区14内的横向管路与受热区14内的纵向管路18之间可以相互连通，受热区14的纵向管路18的液面高度不同的情况下，液面较高的纵向管路中的液体通过横向管路流入液面较低的纵向管路中，以使得受热区14内的液体和气相的压力和温度达到平衡。另外，也可以通过设置多个间隔块110形成第一通道16和第二通道17。
在图1和图2所示的实施例中，为了保证齿片10更好的为发热元件90进行降温，间隔带13的长度需要大于发热元件90的长度，而且，间隔带13的位置需要与发热元件90的位置相对应。其中，在齿片10内的工质处于未被加热的状态下，齿片10内工质的液位需要低于间隔带13的最高位置，齿片10内工质的液位高于发热元件90的最高位置，发热元件90的最低位置需要高于间隔带13的最低位置，这样可以保证发热元件90与齿片10接触的部分完全被工质覆盖到，从而可以为发热元件90的整个表面进行降温，而且，还可以保证齿片10内处于循环流动的工质可以覆盖到发热元件90的整个表面。
在图1和图2所示的实施例中，受热区14中的至少一条纵向管路18的水力直径大于或等于冷却区15中的至少一条纵向管路19的水力直径，水力直径为过流断面面积的四倍与周长之比。其中，在受热区14的纵向管路18的水力直径大于冷却区15的纵向管路19的水力直径的情况下，工质由受热区14的纵向管路18通过第一通道16进入冷却区15的纵向管路19以后，相当于工质由宽度大的管路进入宽度小的管路，所以进入冷却区15的纵向管路19的工质的流速会增加，从而带动齿片10内的工质的整个循环速度加快，所以齿片10内的工质的冷却速度会更快，为发热元件90进行降 温的效果也就更好。
请参见图3和图4所示，图3所示的为本申请实施例提供的另一种齿片20的结构示意图，图4所示的为本申请实施例提供的另一种齿片20内部工质流动的示意图。
在图3和图4所示的实施例中，齿片20包括根部21、稍部22和间隔带23，其中，根部21与齿片20外部的发热元件90相接触，稍部22位于齿片20上远离发热元件90的一边，间隔带23位于根部21和稍部22之间。根部21和间隔带23之间形成受热区24，间隔带23和稍部22之间形成冷却区25，受热区24和冷却区25之间形成第一通道26和第二通道27。受热区24和冷却区25均具有至少两条纵向管路，在根部21指向稍部22的方向上，受热区24的至少两个管路28的长度由长变短，冷却区25的至少两个管路29的长度由短变长。而且，受热区24的至少两个纵向管路28均与第一通道26连通，第一通道26内工质的流动方向为根部21指向稍部22，冷却区25的至少两个纵向管路29均与第二通道27连通，第二通道27内工质的流动方向为稍部22指向根部21。
在图3和图4所示的实施例中，齿片20内部会预先装有用于散热的工质。在发热元件90产生热量以后，发热元件90产生的热量会通过齿片20的根部21传递至受热区24，受热区24的纵向管路28内的工质受热后会沸腾并向上喷涌。由于受热区24内由下至上的纵向管路28的数量由少变多，从而降低了工质在受热区24的纵向管路28内流动的阻力，所以在受热区24的纵向管路28内流动的工质向上喷涌的液位就会更高，从而使得受热区24的纵向管路28内的工质更容易通过第一通道26进入冷却区25的纵向管路内。
在图3和图4所示的实施例中，受热区24中的至少一条纵向管路28的水力直径大于或等于冷却区25中的至少一条纵向管路29的水力直径，水力直径为过流断面面积的四倍与周长之比。其中，在受热区24的纵向管路28的水力直径大于冷却区25的纵向管路29的水力直径的情况下，工质由受热区24的纵向管路28通过第一通道26进入冷却区25的纵向管路29以后，相当于工质由宽度大的管路进入宽度小的管路，所以进入冷却区25的纵向管路29的工质的流速会增加，从而带动齿片20内的工质的整个循环速度加快，所以齿片20内的工质的冷却速度会更快，为发热元件90进行降温的效果也就更好。
请参见图5和图6所示，图5所示的为本申请实施例提供的又一种齿片30的结构示意图，图6所示的为本申请实施例提供的又一种齿片30内部工质流动的示意图。
在图5和图6所示的实施例中，齿片30包括根部31、稍部32和间隔带33，其中，根部31与齿片30外部的发热元件90相接触，稍部32位于齿片30上远离发热元件90的一边，间隔带33位于根部31和稍部32之间。根部31和间隔带33之间形成受热区34，间隔带33和稍部32之间形成冷却区35，受热区34和冷却区35之间形成第一通道36和第二通道37。受热区34和冷却区35均具有至少两条纵向管路，在根部31指向稍部32的方向上，受热区34的至少两个管路38的长度由长变短，冷却区35的至少两个管路39的长度由短变长。而且，受热区34的至少两个纵向管路38均与第二通道37连通，第二通道37内工质的流动方向为稍部32指向根部31，冷却区35的至少两个纵向管路39均与第一通道36连通，第一通道36内工质的流动方向为根部 31指向稍部32。
在图5和图6所示的实施例中，齿片30内部会预先装有用于散热的工质。在发热元件90产生热量以后，发热元件90产生的热量会通过齿片30的根部31传递至受热区34，受热区34的纵向管路38内的工质受热后会沸腾并向上喷涌。由于受热区34内由下至上的纵向管路38的数量由多变少，从而增加了工质在受热区34的纵向管路38内的流速，所以在受热区34的纵向管路38内流动的工质向上喷涌的液位就会更高，从而使得受热区34的纵向管路38内的工质更容易通过第一通道36进入冷却区35的纵向管路内。
在图5和图6所示的实施例中，受热区34中的至少一条纵向管路38的水力直径大于或等于冷却区35中的至少一条纵向管路39的水力直径，水力直径为过流断面面积的四倍与周长之比。其中，在受热区34的纵向管路38的水力直径大于冷却区35的纵向管路39的水力直径的情况下，工质由受热区34的纵向管路38通过第一通道36进入冷却区35的纵向管路39以后，相当于工质由宽度大的管路进入宽度小的管路，所以进入冷却区35的纵向管路39的工质的流速会增加，从而带动齿片30内的工质的整个循环速度加快，所以齿片30内的工质的冷却速度会更快，为发热元件90进行降温的效果也就更好。
请参见图7和图8所示，图7所示的为本申请实施例提供的又一种齿片40的结构示意图，图8所示的为本申请实施例提供的又一种齿片40内部工质流动的示意图。
在图7和图8所示的实施例中，齿片40包括根部41、稍部42和至少两个间隔带(431，432)，其中，根部42与齿片40外部的发热元件(91，92)相接触，稍部42位于齿片40上远离发热元件(91，92)的一边，至少两个间隔带(431，432)位于根部41和稍部42之间。根部41和至少两个间隔带(431，432)之间形成至少两个受热区(441，442)，至少两个间隔带(431，432)和稍部42之间形成至少两个冷却区(451，452)，至少两个受热区(441，442)和至少两个冷却区(451，452)之间形成第一通道461、第二通道472和至少一个混合通道410，至少一个混合通道410位于至少两个间隔带(431，432)中相邻的两个间隔带(431，432)之间。至少两个受热区(441，442)与至少两个冷却区(451，452)通过第一通道461、第二通道472和至少一个混合通道410相互连通。至少一个混合通道410包括第三通道471和第四通道462。
在图7和图8所示的实施例中，齿片40适用于为至少两个发热元件(91，92)进行散热。在发热元件91产生热量以后，发热元件91产生的热量会通过齿片40的根部41传递至受热区441，受热区441的纵向管路481内的工质受热后会沸腾并向上喷涌。在受热区441的纵向管路481内的工质沸腾后不断向上喷涌的过程中，受热区441的纵向管路481内的一部分工质会通过第一通道461进入冷却区451的纵向管路491中。由第一通道461进入冷却区451的纵向管路491内的工质受到重力的影响会向下流动，而且，进入冷却区451的纵向管路491内的工质的温度会逐渐下降。在冷却区451的纵向管路491内经过冷却的工质会通过第三通道471流入受热区441的纵向管路481内，流入受热区441的纵向管路481内的经过冷却的工质会再次吸收发热元件91散发的热量。
同理，在发热元件92产生热量以后，发热元件92产生的热量会通过齿片40的根 部41传递至受热区442，受热区442的纵向管路482内的工质受热后会沸腾并向上喷涌。在受热区442的纵向管路482内的工质沸腾后不断向上喷涌的过程中，受热区442的纵向管路482内的一部分工质会通过第四通道462进入冷却区452的纵向管路492中。由第四通道462进入冷却区452的纵向管路492内的工质受到重力的影响会向下流动，而且，进入冷却区452的纵向管路492内的工质的温度会逐渐下降。在冷却区452的纵向管路492内经过冷却的工质会通过第二通道472流入受热区442的纵向管路482内，流入受热区442的纵向管路482内的经过冷却的工质会再次吸收发热元件92散发的热量。
在图7和图8所示的实施例中，齿片40内的工质会在受热区441的纵向管路481、第一通道16、冷却区451的纵向管路491、第三通道471和受热区441的纵向管路481之间循环流动，从而使得受热区441的纵向管路481内可以及时补充冷却后的工质，以使受热区441的纵向管路481可以不断的吸收发热元件91的热量，进而可以有效的为发热元件91降温。同时，齿片40内的工质会在受热区442的纵向管路482、第四通道462、冷却区452的纵向管路492、第二通道472和受热区442的纵向管路482之间循环流动，从而使得受热区442的纵向管路482内可以及时补充冷却后的工质，以使受热区442的纵向管路482可以不断的吸收发热元件92的热量，进而可以有效的为发热元件92降温。因此，本申请实施例提供的齿片40不仅可以在长宽固定的情况下提高齿片的散热效率，而且，还能够同时为至少两个发热元件(91，92)进行散热，从而可以减少齿片40的数量。
在图7和图8所示的实施例中，至少两个受热区(441，442)中的每个受热区均具有至少一条纵向管路，至少两个冷却区(451，452)中的每个冷却区均具有至少一条纵向管路。至少两个受热区(441，442)中每个受热区的至少一条纵向管路的水力直径大于或等于至少两个冷却区(451，452)中每个冷却区的至少一条纵向管路的水力直径，水力直径为过流断面面积的四倍与周长之比。
其中，在受热区441的纵向管路481的水力直径大于冷却区451的纵向管路491的水力直径的情况下，工质由受热区441的纵向管路481通过第一通道16进入冷却区451的纵向管路491以后，相当于工质由宽度大的管路进入宽度小的管路，所以进入冷却区451的纵向管路491的工质的流速会增加，从而带动齿片40的上半个区域内的工质的循环速度加快，所以齿片40的上半个区域内的工质的冷却速度会更快，为发热元件91进行降温的效果也就更好。
同理，在受热区442的纵向管路482的水力直径大于冷却区452的纵向管路492的水力直径的情况下，工质由受热区442的纵向管路482通过第四通道462进入冷却区452的纵向管路492以后，相当于工质由宽度大的管路进入宽度小的管路，所以进入冷却区452的纵向管路492的工质的流速会增加，从而带动齿片40的下半个区域内的工质的整个循环速度加快，所以齿片40的下半个区域内的工质的冷却速度会更快，为发热元件92进行降温的效果也就更好。
在图7和图8所示的实施例中，展示的为齿片40具有两个间隔带(431，432)的情况。如果需要为3个或3个以上的发热元件进行散热，那么还可以在齿片40内设置3个或3个以上的间隔带，从而划分出更多可以为发热元件进行散热的受热区。
请参见图9所示，图9示的为本申请实施例提供的一种散热器的结构示意图。散热器包括至少一个齿片50和基板60，其中，至少一个齿片50的根部连接在基板60的第一表面上，基板60的第二表面与散热器外部的发热元件(图9中未示出)相接触，至少一个齿片50的稍部位于齿片50上远离基板60的一边。
在图9所示的实施例中，至少一个齿片50可以为图1所示的齿片10，至少一个齿片50也可以为图3所示的齿片20，至少一个齿片50还可以为图5所示的齿片30，至少一个齿片50还可以为图7所示的齿片40。
请参见图10所示，图10示的为本申请实施例提供的一种通信设备的结构示意图。通信设备包括至少一个齿片50、基板60和发热元件90，其中，至少一个齿片50的根部连接在基板60的第一表面上，基板60的第二表面与发热元件90相接触，至少一个齿片50的稍部位于齿片50上远离基板60的一边。
在图10所示的实施例中，至少一个齿片50可以为图1所示的齿片10，至少一个齿片50也可以为图3所示的齿片20，至少一个齿片50还可以为图5所示的齿片30，至少一个齿片50还可以为图7所示的齿片40。

Claims (12)

  1. 一种齿片，其特征在于，包括根部、稍部和间隔带；
    其中，所述根部与所述齿片外部的发热元件相接触，所述稍部位于所述齿片上远离所述发热元件的一边，所述间隔带位于所述根部和所述稍部之间；
    所述根部和所述间隔带之间形成受热区，所述间隔带和所述稍部之间形成冷却区，所述受热区和所述冷却区之间形成第一通道和第二通道；
    所述受热区和所述冷却区均具有至少一条纵向管路，所述受热区的至少一条纵向管路与所述冷却区的至少一条纵向管路通过所述第一通道和所述第二通道相互连通；
    所述间隔带的位置与所述发热元件的位置相对应。
  2. 根据权利要求1所述的齿片，其特征在于：
    所述受热区中的至少一条纵向管路的水力直径大于或等于所述冷却区中的至少一条纵向管路的水力直径，所述水力直径为过流断面面积的四倍与周长之比。
  3. 一种齿片，其特征在于，包括根部、稍部和间隔带；
    其中，所述根部与所述齿片外部的发热元件相接触，所述稍部位于所述齿片上远离所述发热元件的一边，所述间隔带位于所述根部和所述稍部之间；
    所述根部和所述间隔带之间形成受热区，所述间隔带和所述稍部之间形成冷却区，所述受热区和所述冷却区之间形成第一通道和第二通道；
    所述受热区和所述冷却区均具有至少两条纵向管路，在所述根部指向所述稍部的方向上，所述受热区的至少两个管路的长度由长变短，所述冷却区的至少两个管路的长度由短变长。
  4. 根据权利要求3所述的齿片，其特征在于：
    所述受热区的至少两个纵向管路均与所述第一通道连通，所述第一通道内工质的流动方向为所述根部指向所述稍部；
    所述冷却区的至少两个纵向管路均与所述第二通道连通，所述第二通道内工质的流动方向为所述稍部指向所述根部。
  5. 根据权利要求3所述的齿片，其特征在于：
    所述受热区的至少两个纵向管路均与所述第二通道连通，所述第二通道内工质的流动方向为所述稍部指向所述根部；
    所述冷却区的至少两个纵向管路均与所述第一通道连通，所述第一通道内工质的流动方向为所述根部指向所述稍部。
  6. 根据权利要求3至5任意一项所述的齿片，其特征在于：
    所述受热区中的至少两条纵向管路的水力直径大于或等于所述冷却区中的至少两条纵向管路的水力直径，所述水力直径为过流断面面积的四倍与周长之比。
  7. 一种齿片，其特征在于，包括根部、稍部和至少两个间隔带；
    其中，所述根部与所述齿片外部的发热元件相接触，所述稍部位于所述齿片上远离所述发热元件的一边，所述至少两个间隔带位于所述根部和所述稍部之间；
    所述根部和所述至少两个间隔带之间形成至少两个受热区，所述至少两个间隔带和所述稍部之间形成至少两个冷却区，所述至少两个受热区和所述至少两个冷却区之间形成第一通道、第二通道和至少一个混合通道，所述至少一个混合通道位于所述至少两个间隔带中相邻的两个间隔带之间；
    所述至少两个受热区与所述至少两个冷却区通过所述第一通道、所述第二通道和至少一个混合通道相互连通。
  8. 根据权利要求7所述的齿片，其特征在于：
    所述至少两个受热区中的每个受热区均具有至少一条纵向管路，所述至少两个冷却区中的每个冷却区均具有至少一条纵向管路；
    所述至少两个受热区中每个受热区的至少一条纵向管路的水力直径大于或等于所述至少两个冷却区中每个冷却区的至少一条纵向管路的水力直径，所述水力直径为过流断面面积的四倍与周长之比。
  9. 一种散热器，其特征在于，包括至少一个如权利要求1至2、权利要求3至6或权利要求7至8任意一项所述的齿片。
  10. 根据权利要求9所述的散热器，其特征在于，还包括基板；
    所述至少一个齿片的根部连接在所述基板的第一表面上，所述基板的第二表面与所述散热器外部的发热元件相接触，所述至少一个齿片的稍部位于所述齿片上远离所述基板的一边。
  11. 一种通信设备，其特征在于，包括至少一个如权利要求1至2、权利要求3至6或权利要求7至8任意一项所述的齿片。
  12. 根据权利要求11所述的通信设备，其特征在于，还包括基板和发热元件；
    所述至少一个齿片的根部连接在所述基板的第一表面上，所述基板的第二表面与所述发热元件相接触，所述至少一个齿片的稍部位于所述齿片上远离所述基板的一边。
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