CN112243333B - Tooth piece, radiator and communication equipment - Google Patents
Tooth piece, radiator and communication equipment Download PDFInfo
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- CN112243333B CN112243333B CN201910646776.3A CN201910646776A CN112243333B CN 112243333 B CN112243333 B CN 112243333B CN 201910646776 A CN201910646776 A CN 201910646776A CN 112243333 B CN112243333 B CN 112243333B
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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
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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
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Abstract
The embodiment of the application discloses a tooth piece, a radiator and communication equipment. The root part is contacted with the heating element outside the tooth piece, the tip part is positioned on one side of the tooth piece far away from the heating element, and the spacing belt is positioned between the root part and the tip part. A heated zone is formed between the root and the spacer, a cooled zone is formed between the spacer and the tip, and a first channel and a second channel are formed between the heated zone and the cooled zone. The position of the spacing strip corresponds to the position of the heating element. After being heated, the working medium in the tooth piece can circularly flow among the longitudinal pipeline of the heated area, the first channel, the longitudinal pipeline of the cooling area, the second channel and the longitudinal pipeline of the heated area, so that the cooled working medium can be supplemented in the longitudinal pipeline of the heated area in time, the longitudinal pipeline of the heated area can continuously absorb the heat of the heating element, and the heating element can be effectively cooled.
Description
Technical Field
The embodiment of the application relates to the technical field of machinery, in particular to a tooth piece, a radiator and communication equipment.
Background
A heat sink is typically provided on the communication device to provide heat dissipation for the communication device. The radiator comprises a base plate and radiating teeth fixed on the base plate, and the inner parts of the radiating teeth are solid.
With the gradual increase of heat consumption of communication equipment, the height of the heat dissipation teeth needs to be increased continuously under the condition that the length and the width of the heat sink are fixed. However, the heat dissipation efficiency of the heat dissipation teeth decreases with an increase in height, resulting in a mismatch between an increase in heat dissipation capacity of the heat sink and an increase in weight of the heat sink.
Therefore, how to improve the heat dissipation efficiency of the heat sink under the condition that the length and the width of the heat sink are fixed becomes a problem to be solved urgently at present.
Disclosure of Invention
The embodiment of the application provides a tooth piece, a radiator and communication equipment, and the radiating efficiency of the radiator is improved under the condition that the length and the width of the radiator are fixed.
The embodiment of the application is realized as follows:
in a first aspect, embodiments of the present application provide a tooth plate including a root, a tip, and a spacer strip. The root part is contacted with the heating element outside the tooth piece, the tip part is positioned on one side of the tooth piece far away from the heating element, and the spacing belt is positioned between the root part and the tip part. A heated zone is formed between the root and the spacer, a cooled zone is formed between the spacer and the tip, and a first channel and a second channel are formed between the heated zone and the cooled zone. The heating area and the cooling area are both provided with at least one longitudinal pipeline, and the at least one longitudinal pipeline of the heating area and the at least one longitudinal pipeline of the cooling area are mutually communicated through a first channel and a second channel. The position of the spacing strip corresponds to the position of the heating element.
In the first aspect, after being heated, the working medium in the tooth piece can circularly flow among the longitudinal pipeline of the heated area, the longitudinal pipeline of the first channel, the longitudinal pipeline of the cooling area, the second channel and the longitudinal pipeline of the heated area, so that the cooled working medium can be supplemented in the longitudinal pipeline of the heated area in time, the longitudinal pipeline of the heated area can continuously absorb the heat of the heating element, and the heating element can be effectively cooled, and therefore the tooth piece provided by the embodiment of the application can improve the heat dissipation efficiency of the tooth piece under the condition of fixed length and width.
In one possible embodiment, the liquid level of the working medium in the tooth plate is lower than the highest position of the spacing belt, the liquid level of the working medium in the tooth plate is higher than the highest position of the heating element, and the lowest position of the heating element is higher than the lowest position of the spacing belt in the unheated state of the working medium in the tooth plate.
Wherein, can guarantee like this that heating element and the part of tooth contact are covered by working medium completely to can cool down for heating element's whole surface, moreover, can also guarantee that the working medium that is in the circulation flow in the tooth can cover heating element's whole surface.
In one possible implementation, the length of the spacer tape is greater than the length of the heating element.
In one possible implementation, the hydraulic diameter of the at least one longitudinal conduit in the heated zone is greater than or equal to the hydraulic diameter of the at least one longitudinal conduit in the cooling zone, the hydraulic diameter being the ratio of four times the flow cross-sectional area to the perimeter.
Under the condition that the hydraulic diameter of the longitudinal pipeline of the heated area is larger than that of the longitudinal pipeline of the cooling area, after the working medium enters the longitudinal pipeline of the cooling area through the first channel from the longitudinal pipeline of the heated area, the working medium equivalently enters the pipeline with small width from the pipeline with large width, so that the flow velocity of the working medium entering the longitudinal pipeline of the cooling area can be increased, the whole circulation speed of the working medium in the tooth piece is driven to be accelerated, the cooling speed of the working medium in the tooth piece is higher, and the effect of cooling the heating element 90 is better.
In a second aspect, embodiments of the present application provide a tooth plate including a root, a tip, and a spacer strip. The root part is contacted with the heating element outside the tooth piece, the tip part is positioned on one side of the tooth piece far away from the heating element, and the spacing belt is positioned between the root part and the tip part. A heated zone is formed between the root and the spacer, a cooled zone is formed between the spacer and the tip, and a first channel and a second channel are formed between the heated zone and the cooled zone. The heated area and the cooling area are both provided with at least two longitudinal pipelines, in the direction that the root points to the tip part, the length of the at least two pipelines of the heated area is shortened from long to short, and the length of the at least two pipelines of the cooling area is lengthened from short to long.
In a possible implementation manner, at least two longitudinal pipelines of the heated area are communicated with the first channel, and the flowing direction of the working medium in the first channel is that the root part points to the tip part. At least two longitudinal pipelines of the cooling area are communicated with the second channel, and the flowing direction of the working medium in the second channel is that the tip part points to the root part.
After the heating element generates heat, the heat generated by the heating element is transferred to the heated area through the root of the tooth piece, and the working medium in the longitudinal pipeline of the heated area is heated and then boils and gushes upwards. The number of the longitudinal pipelines from bottom to top in the heated area is changed from small to large, so that the flowing resistance of the working medium in the longitudinal pipelines of the heated area is reduced, the upward gushing liquid level of the working medium flowing in the longitudinal pipelines of the heated area is higher, and the working medium in the longitudinal pipelines of the heated area can easily enter the longitudinal pipelines of the cooling area through the first channel.
In a possible implementation manner, at least two longitudinal pipelines of the heated area are communicated with the second channel, and the flowing direction of the working medium in the second channel is that a tip part points to a root part. At least two longitudinal pipelines of the cooling area are communicated with the first channel, and the flowing direction of the working medium in the first channel is that the root points to the tip.
After the heating element generates heat, the heat generated by the heating element is transferred to the heated area through the root of the tooth piece, and the working medium in the longitudinal pipeline of the heated area is heated and then boils and gushes upwards. The number of the longitudinal pipelines from bottom to top in the heated area is reduced from variable to variable, so that the flow velocity of the working medium in the longitudinal pipelines of the heated area is increased, the liquid level of upward gushing of the working medium flowing in the longitudinal pipelines of the heated area is higher, and the working medium in the longitudinal pipelines of the heated area can easily enter the longitudinal pipelines of the cooling area through the first channel.
In one possible implementation, the hydraulic diameter of the at least two longitudinal ducts in the heated zone is greater than or equal to the hydraulic diameter of the at least two longitudinal ducts in the cooling zone, the hydraulic diameter being the ratio of four times the flow cross-sectional area to the perimeter.
In a third aspect, embodiments of the present application provide a tooth plate comprising a root portion, a tip portion, and at least two spacer belts. The root part is contacted with the heating element outside the tooth piece, the tip part is positioned on one side of the tooth piece far away from the heating element, and the at least two spacing belts are positioned between the root part and the tip part. At least two heated zones are formed between the root and the at least two spaced belts, at least two cooling zones are formed between the at least two spaced belts and the tip, a first channel, a second channel and at least one mixing channel are formed between the at least two heated zones and the at least two cooling zones, and the at least one mixing channel is located between two adjacent spaced belts in the at least two spaced belts. The at least two heated zones and the at least two cooling zones are in communication with each other via a first channel, a second channel, and at least one mixing channel.
In the third aspect, the fins can not only improve the heat dissipation efficiency of the fins with a fixed length and width, but also dissipate heat for at least two heat generating elements at the same time, so that the number of fins can be reduced.
In a possible embodiment, each of the at least two heated zones has at least one longitudinal line and each of the at least two cooling zones has at least one longitudinal line. The hydraulic diameter of at least one longitudinal pipeline of each heating zone in the at least two heating zones is larger than or equal to the hydraulic diameter of at least one longitudinal pipeline of each cooling zone in the at least two cooling zones, and the hydraulic diameter is the ratio of four times of the flow cross-sectional area to the perimeter.
In a fourth aspect, an embodiment of the present application provides a heat sink, where the heat sink includes the tooth blade disclosed in any one of the possible implementations of the first aspect and the first aspect, any one of the possible implementations of the second aspect and the second aspect, or any one of the possible implementations of the third aspect and the third aspect.
In one possible implementation, the display device further comprises a substrate. The root of at least one tooth sheet is connected to the first surface of the base plate, the second surface of the base plate is contacted with a heating element outside the radiator, and the tip of at least one tooth sheet is positioned on one side of the tooth sheet far away from the base plate.
In a fifth aspect, an embodiment of the present application provides a communication device, where the communication device includes the tooth blade disclosed in any one of the possible implementations of the first aspect and the first aspect, any one of the possible implementations of the second aspect and the second aspect, or any one of the possible implementations of the third aspect and the third aspect.
In one possible implementation, the heat generating device further comprises a substrate and a heat generating element. The root of at least one tooth piece is connected with the first surface of the base plate, the second surface of the base plate is contacted with the heating element, and the tip of at least one tooth piece is positioned on one side of the tooth piece far away from the base plate.
Drawings
Fig. 1 is a schematic structural view of a tooth plate 10 according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating the flow of the working fluid inside the tooth plate 10 according to the embodiment of the present application;
fig. 3 is a schematic structural view of another tooth plate 20 provided in the embodiments of the present application;
FIG. 4 is a schematic view of the flow of the working fluid inside the tooth plate 20 according to another embodiment of the present application;
fig. 5 is a schematic structural diagram of another tooth plate 30 provided in the embodiment of the present application;
FIG. 6 is a schematic diagram illustrating the flow of working fluid inside another tooth 30 provided in the embodiments of the present application;
fig. 7 is a schematic structural diagram of another tooth plate 40 provided in the embodiment of the present application;
FIG. 8 is a schematic view of the flow of working fluid within another tooth 40 provided by the embodiments of the present application;
fig. 9 is a schematic structural diagram illustrating a heat sink according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a tooth plate 10 according to an embodiment of the present disclosure, and fig. 2 is a schematic diagram of a flow of a working medium inside the tooth plate 10 according to an embodiment of the present disclosure.
In the embodiment shown in fig. 1 and 2, the blade 10 includes a root 11, a tip 12, and a spacer 13, wherein the root 11 is in contact with the heating element 90 outside the blade 10, the tip 12 is located on the side of the blade 10 remote from the heating element 90, and the spacer 13 is located between the root 11 and the tip 12. A heated zone 14 is formed between the root 11 and the spacer belt 13, a cooled zone 15 is formed between the spacer belt 13 and the tip 12, and a first passage 16 and a second passage 17 are formed between the heated zone 14 and the cooled zone 15. The heated zone 14 and the cooled zone 15 each have at least one longitudinal conduit, the at least one longitudinal conduit 18 of the heated zone 14 and the at least one longitudinal conduit 19 of the cooled zone 15 being in communication with each other through a first passage 16 and a second passage 17, the position of the spacer belt 13 corresponding to the position of the heating element 90.
In the embodiment shown in fig. 1 and 2, the blade 10 is pre-loaded with a working medium for heat dissipation. After the heating element 90 generates heat, the heat generated by the heating element 90 is transferred to the heated area 14 through the root 11 of the tooth blade 10, and the working medium in the longitudinal pipeline 18 of the heated area 14 is heated and then boils and gushes upwards. During the continuous upward gushing process after the working fluid in the longitudinal pipe 18 of the heated zone 14 is boiled, a part of the working fluid in the longitudinal pipe 18 of the heated zone 14 enters the longitudinal pipe 19 of the cooling zone 15 through the first passage 16. The working medium entering the longitudinal ducts 19 of the cooling zone 15 from the first channel 16 will flow downwards under the influence of gravity and the temperature of the working medium entering the longitudinal ducts 19 of the cooling zone 15 will gradually decrease. The working fluid cooled in the longitudinal line 19 of the cooling zone 15 flows through the second channel 17 into the longitudinal line 18 of the heated zone 14, and the cooled working fluid flowing into the longitudinal line 18 of the heated zone 14 again absorbs the heat emitted by the heating element 90.
In the embodiment shown in fig. 1 and 2, the working medium in the tooth piece 10 flows in a circulating manner among the longitudinal pipeline 18 of the heated area 14, the first channel 16, the longitudinal pipeline 19 of the cooling area 15, the second channel 17 and the longitudinal pipeline 18 of the heated area 14, so that the cooled working medium can be supplemented in time in the longitudinal pipeline 18 of the heated area 14, the longitudinal pipeline 18 of the heated area 14 can continuously absorb the heat of the heating element 90, and the heating element 90 can be effectively cooled, and therefore the tooth piece provided by the embodiment of the present application can improve the heat dissipation efficiency of the tooth piece under the condition of fixed length and width.
In the embodiment shown in fig. 1 and 2, the number of longitudinal ducts 18 of the heated zone 14 is 3 and the number of longitudinal ducts 19 of the cooling zone 15 is 2. Of course, the number of longitudinal ducts 18 of the heated zone 14 and the number of longitudinal ducts 19 of the cooling zone 15 can be set according to the actual requirements.
In the embodiment shown in fig. 1 and 2, the longitudinal ducts 18 and 19 are formed by providing a plurality of spacer blocks 110 in the heated zone 14 and the cooled zone 15. Of course, the plurality of spacers 110 in the heated zone 14 and the cooled zone 15 also form transverse channels of the heated zone 14 and transverse channels of the cooled zone 15. The transverse pipelines in the heated zone 14 and the longitudinal pipelines 18 in the heated zone 14 can be communicated with each other, and under the condition that the liquid level heights of the longitudinal pipelines 18 in the heated zone 14 are different, the liquid in the longitudinal pipelines with higher liquid level flows into the longitudinal pipelines with lower liquid level through the transverse pipelines, so that the pressure and the temperature of the liquid and the gas phase in the heated zone 14 are balanced. In addition, the first passage 16 and the second passage 17 may be formed by providing a plurality of spacers 110.
In the embodiment shown in fig. 1 and 2, in order to ensure that the blade 10 cools the heating element 90 better, 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 correspond to the position of the heating element 90. Wherein, working medium in the tooth piece 10 is in the state of not being heated, the liquid level of working medium in the tooth piece 10 needs to be less than the highest position of spacer belt 13, the liquid level of working medium in the tooth piece 10 is higher than the highest position of heating element 90, the lowest position of heating element 90 needs to be higher than the lowest position of spacer belt 13, can guarantee like this that heating element 90 and the part of tooth piece 10 contact are covered by working medium completely, thereby can cool down for heating element 90's whole surface, and, can also guarantee that the working medium that is in the circulation flow in the tooth piece 10 can cover heating element 90's whole surface.
In the embodiment shown in fig. 1 and 2, the hydraulic diameter of the at least one longitudinal conduit 18 in the heated zone 14 is greater than or equal to the hydraulic diameter of the at least one longitudinal conduit 19 in the cooling zone 15, the hydraulic diameter being the ratio of four times the flow cross-sectional area to the perimeter. Under the condition that the hydraulic diameter of the longitudinal pipeline 18 of the heated area 14 is larger than that of the longitudinal pipeline 19 of the cooling area 15, after the working medium enters the longitudinal pipeline 19 of the cooling area 15 from the longitudinal pipeline 18 of the heated area 14 through the first channel 16, the working medium is equivalent to the working medium entering the pipeline with a small width from the pipeline with a large width, so that the flow velocity of the working medium entering the longitudinal pipeline 19 of the cooling area 15 is increased, the whole circulation speed of the working medium in the tooth piece 10 is driven to be accelerated, the cooling speed of the working medium in the tooth piece 10 is higher, and the effect of cooling the heating element 90 is better.
Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of another tooth plate 20 provided in the embodiment of the present application, and fig. 4 is a schematic diagram of a flow of working medium inside another tooth plate 20 provided in the embodiment of the present application.
In the embodiment shown in fig. 3 and 4, the blade 20 includes a root portion 21, a tip portion 22, and a spacer 23, wherein the root portion 21 is in contact with the heating element 90 outside the blade 20, the tip portion 22 is located on a side of the blade 20 remote from the heating element 90, and the spacer 23 is located between the root portion 21 and the tip portion 22. A heated zone 24 is formed between the root 21 and the spacer 23, a cooled zone 25 is formed between the spacer 23 and the tip 22, and a first passage 26 and a second passage 27 are formed between the heated zone 24 and the cooled zone 25. The heated zone 24 and the cooled zone 25 each have at least two longitudinal ducts, the length of at least two ducts 28 of the heated zone 24 being shorter by the length and the length of at least two ducts 29 of the cooled zone 25 being longer by the length in the direction from the root 21 towards the tip 22. Furthermore, the at least two longitudinal ducts 28 of the heated zone 24 are all connected to the first channel 26, the flow direction of the working medium in the first channel 26 is such that the root 21 points towards the tip 22, the at least two longitudinal ducts 29 of the cooled zone 25 are all connected to the second channel 27, the flow direction of the working medium in the second channel 27 is such that the tip 22 points towards the root 21.
In the embodiment shown in fig. 3 and 4, the teeth 20 are pre-loaded with working fluid for heat dissipation. After the heating element 90 generates heat, the heat generated by the heating element 90 is transferred to the heated area 24 through the root 21 of the blade 20, and the working medium in the longitudinal pipeline 28 of the heated area 24 is heated and then boils and gushes upwards. Because the number of the longitudinal pipelines 28 from bottom to top in the heated area 24 is changed from small to large, the flowing resistance of the working medium in the longitudinal pipelines 28 of the heated area 24 is reduced, the upward gushing liquid level of the working medium flowing in the longitudinal pipelines 28 of the heated area 24 is higher, and the working medium in the longitudinal pipelines 28 of the heated area 24 can easily enter the longitudinal pipelines of the cooling area 25 through the first channel 26.
In the embodiment shown in fig. 3 and 4, the hydraulic diameter of the at least one longitudinal conduit 28 in the heated zone 24 is greater than or equal to the hydraulic diameter of the at least one longitudinal conduit 29 in the cooling zone 25, the hydraulic diameter being the ratio of four times the flow cross-sectional area to the perimeter. Under the condition that the hydraulic diameter of the longitudinal pipeline 28 of the heated area 24 is larger than that of the longitudinal pipeline 29 of the cooling area 25, after the working medium enters the longitudinal pipeline 29 of the cooling area 25 through the first channel 26 from the longitudinal pipeline 28 of the heated area 24, the working medium is equivalent to the working medium entering the pipeline with a small width from the pipeline with a large width, so that the flow velocity of the working medium entering the longitudinal pipeline 29 of the cooling area 25 is increased, the whole circulation speed of the working medium in the tooth piece 20 is driven to be accelerated, the cooling speed of the working medium in the tooth piece 20 is higher, and the effect of cooling the heating element 90 is better.
Referring to fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of another tooth 30 provided in the embodiment of the present application, and fig. 6 is a schematic diagram of a flow of working medium inside another tooth 30 provided in the embodiment of the present application.
In the embodiment shown in fig. 5 and 6, the blade 30 includes a root portion 31, a tip portion 32, and a spacer 33, wherein the root portion 31 is in contact with the heating element 90 outside the blade 30, the tip portion 32 is located on a side of the blade 30 remote from the heating element 90, and the spacer 33 is located between the root portion 31 and the tip portion 32. A heated zone 34 is formed between the root 31 and the spacer 33, a cooled zone 35 is formed between the spacer 33 and the tip 32, and a first passage 36 and a second passage 37 are formed between the heated zone 34 and the cooled zone 35. The heated zone 34 and the cooled zone 35 each have at least two longitudinal conduits, at least two conduits 38 of the heated zone 34 being shorter in length and at least two conduits 39 of the cooled zone 35 being shorter in length in the direction from the root 31 towards the tip 32. Furthermore, at least two longitudinal ducts 38 of the heated zone 34 are connected to a second channel 37, the flow direction of the working medium in the second channel 37 is such that the tip 32 is directed towards the root 31, at least two longitudinal ducts 39 of the cooled zone 35 are connected to a first channel 36, and the flow direction of the working medium in the first channel 36 is such that the root 31 is directed towards the tip 32.
In the embodiment shown in fig. 5 and 6, the teeth 30 are pre-loaded with working fluid for heat dissipation. After the heating element 90 generates heat, the heat generated by the heating element 90 is transferred to the heated region 34 through the root 31 of the blade 30, and the working medium in the longitudinal pipeline 38 of the heated region 34 is heated and then boils and gushes upwards. Because the number of the longitudinal pipelines 38 from bottom to top in the heated area 34 is reduced, the flow speed of the working medium in the longitudinal pipelines 38 of the heated area 34 is increased, the liquid level of the upward gushing of the working medium flowing in the longitudinal pipelines 38 of the heated area 34 is higher, and the working medium in the longitudinal pipelines 38 of the heated area 34 can more easily enter the longitudinal pipelines of the cooling area 35 through the first channels 36.
In the embodiment shown in fig. 5 and 6, the hydraulic diameter of the at least one longitudinal conduit 38 in the heated zone 34 is greater than or equal to the hydraulic diameter of the at least one longitudinal conduit 39 in the cooling zone 35, the hydraulic diameter being the ratio of four times the flow cross-sectional area to the perimeter. Under the condition that the hydraulic diameter of the longitudinal pipeline 38 of the heated area 34 is larger than that of the longitudinal pipeline 39 of the cooling area 35, after the working medium enters the longitudinal pipeline 39 of the cooling area 35 from the longitudinal pipeline 38 of the heated area 34 through the first channel 36, the working medium enters the pipeline with a small width from the pipeline with a large width, so that the flow velocity of the working medium entering the longitudinal pipeline 39 of the cooling area 35 is increased, the whole circulation speed of the working medium in the tooth piece 30 is driven to be increased, the cooling speed of the working medium in the tooth piece 30 is increased, and the effect of cooling the heating element 90 is better.
Referring to fig. 7 and 8, fig. 7 is a schematic structural diagram of another tooth 40 provided in the embodiment of the present application, and fig. 8 is a schematic diagram of a flow of working medium inside another tooth 40 provided in the embodiment of the present application.
In the embodiment shown in fig. 7 and 8, the blade 40 includes a root portion 41, a tip portion 42, and at least two spacer belts (431, 432), wherein the root portion 42 is in contact with the heating element (91, 92) outside the blade 40, the tip portion 42 is located on the side of the blade 40 away from the heating element (91, 92), and the at least two spacer belts (431, 432) are located between the root portion 41 and the tip portion 42. At least two heated zones (441, 442) are formed between the root 41 and the at least two spaced belts (431, 432), at least two cooling zones (451, 452) are formed between the at least two spaced belts (431, 432) and the tip 42, a first channel 461, a second channel 472 and at least one mixing channel 410 are formed between the at least two heated zones (441, 442) and the at least two cooling zones (451, 452), and the at least one mixing channel 410 is located between two adjacent spaced belts (431, 432) of the at least two spaced belts (431, 432). The at least two heated zones (441, 442) and the at least two cooling zones (451, 452) are in communication with each other through a first passage 461, a second passage 472, and at least one mixing passage 410. The at least one mixing channel 410 includes a third channel 471 and a fourth channel 462.
In the embodiment shown in fig. 7 and 8, the blade 40 is adapted to dissipate heat for at least two heat generating components (91, 92). After the heat is generated by the heating element 91, the heat generated by the heating element 91 is transferred to the heated region 441 through the root 41 of the blade 40, and the working medium in the longitudinal pipe 481 of the heated region 441 is heated and then boils and gushes upwards. During the continuous upward gushing process after the working fluid in the longitudinal pipe 481 of the heated region 441 is boiling, a portion of the working fluid in the longitudinal pipe 481 of the heated region 441 enters the longitudinal pipe 491 of the cooling region 451 through the first passage 461. Working fluid entering longitudinal conduit 491 of cooling zone 451 from first passage 461 will flow downwardly under the influence of gravity and, in addition, the temperature of working fluid entering longitudinal conduit 491 of cooling zone 451 will gradually decrease. The working fluid cooled in the longitudinal pipe 491 of the cooling zone 451 flows into the longitudinal pipe 481 of the heated zone 441 through the third channel 471, and the cooled working fluid flowing into the longitudinal pipe 481 of the heated zone 441 absorbs heat emitted from the heat generating element 91 again.
Similarly, after the heat generated by the heating element 92 is transferred to the heated region 442 through the root 41 of the blade 40, the working medium in the longitudinal pipe 482 of the heated region 442 is heated and then boils and gushes upward. During the continuous upward gushing process after the working fluid in the longitudinal pipe 482 of the heated region 442 is boiled, a portion of the working fluid in the longitudinal pipe 482 of the heated region 442 enters the longitudinal pipe 492 of the cooling region 452 through the fourth passage 462. Working fluid entering longitudinal conduit 492 of cooling region 452 from fourth passage 462 will flow downwardly under the influence of gravity and, in addition, the temperature of working fluid entering longitudinal conduit 492 of cooling region 452 will gradually decrease. The cooled working fluid in the longitudinal conduit 492 of the cooling section 452 flows through the second channel 472 into the longitudinal conduit 482 of the heated section 442, and the cooled working fluid flowing into the longitudinal conduit 482 of the heated section 442 absorbs heat emitted from the heat generating component 92 again.
In the embodiment shown in fig. 7 and 8, the working fluid in the blade 40 flows in a circulating manner among the longitudinal pipe 481 of the heated area 441, the first channel 16, the longitudinal pipe 491 of the cooling area 451, the third channel 471, and the longitudinal pipe 481 of the heated area 441, so that the cooled working fluid can be supplemented in time in the longitudinal pipe 481 of the heated area 441, and the longitudinal pipe 481 of the heated area 441 can continuously absorb the heat of the heating element 91, thereby effectively cooling the heating element 91. Meanwhile, the working medium in the blade 40 flows in a circulating manner among the longitudinal pipeline 482 of the heated region 442, the fourth channel 462, the longitudinal pipeline 492 of the cooling region 452, the second channel 472 and the longitudinal pipeline 482 of the heated region 442, so that the cooled working medium can be supplemented in the longitudinal pipeline 482 of the heated region 442 in time, the heat of the heating element 92 can be continuously absorbed by the longitudinal pipeline 482 of the heated region 442, and the heating element 92 can be effectively cooled. Therefore, the tooth piece 40 provided by the embodiment of the application can not only improve the heat dissipation efficiency of the tooth piece under the condition of fixing the length and the width, but also can simultaneously dissipate heat for at least two heating elements (91, 92), thereby reducing the number of the tooth piece 40.
In the embodiment shown in fig. 7 and 8, each of the at least two heated zones (441, 442) has at least one longitudinal conduit and each of the at least two cooling zones (451, 452) has at least one longitudinal conduit. The hydraulic diameter of the at least one longitudinal conduit of each of the at least two heated zones (441, 442) is greater than or equal to the hydraulic diameter of the at least one longitudinal conduit of each of the at least two cooling zones (451, 452), the hydraulic diameter being the ratio of four times the flow cross-sectional area to the perimeter.
Under the condition that the hydraulic diameter of the longitudinal pipeline 481 of the heated area 441 is larger than that of the longitudinal pipeline 491 of the cooling area 451, after the working medium enters the longitudinal pipeline 491 of the cooling area 451 through the first channel 16 from the longitudinal pipeline 481 of the heated area 441, the working medium is equivalent to a working medium entering a pipeline with a small width from a pipeline with a large width, so that the flow velocity of the working medium entering the longitudinal pipeline 491 of the cooling area 451 is increased, thereby driving the circulation velocity of the working medium in the upper half area of the tooth piece 40 to be increased, so that the cooling velocity of the working medium in the upper half area of the tooth piece 40 is faster, and the effect of cooling the heating element 91 is better.
Similarly, when the hydraulic diameter of the longitudinal pipeline 482 of the heated region 442 is greater than the hydraulic diameter of the longitudinal pipeline 492 of the cooling region 452, after the working medium enters the longitudinal pipeline 492 of the cooling region 452 through the fourth channel 462 from the longitudinal pipeline 482 of the heated region 442, the flow rate of the working medium entering the longitudinal pipeline 492 of the cooling region 452 will be increased, so as to increase the entire circulation speed of the working medium in the lower half region of the tooth 40, and therefore the cooling speed of the working medium in the lower half region of the tooth 40 will be faster, and the effect of cooling the heating element 92 will be better.
In the embodiment shown in fig. 7 and 8, the blade 40 is shown with two spacer strips (431, 432). If 3 or more than 3 heating elements are required to dissipate heat, 3 or more than 3 spacing bands may be provided in the blade 40 to define more heated areas for dissipating heat from the heating elements.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a heat sink according to an embodiment of the present disclosure. The heat sink includes at least one blade 50 and a base plate 60, wherein a root of the at least one blade 50 is attached to a first surface of the base plate 60, a second surface of the base plate 60 is in contact with a heat generating component (not shown in fig. 9) external to the heat sink, and a tip of the at least one blade 50 is located on a side of the blade 50 remote from the base plate 60.
In the embodiment shown in fig. 9, at least one tooth 50 may be tooth 10 shown in fig. 1, at least one tooth 50 may be tooth 20 shown in fig. 3, at least one tooth 50 may be tooth 30 shown in fig. 5, and at least one tooth 50 may be tooth 40 shown in fig. 7.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure. The communication device includes at least one blade 50, a substrate 60, and a heat generating element 90, wherein a root of the at least one blade 50 is attached to a first surface of the substrate 60, a second surface of the substrate 60 is in contact with the heat generating element 90, and a tip of the at least one blade 50 is located on a side of the blade 50 remote from the substrate 60.
In the embodiment shown in fig. 10, at least one tooth 50 may be tooth 10 shown in fig. 1, at least one tooth 50 may be tooth 20 shown in fig. 3, at least one tooth 50 may be tooth 30 shown in fig. 5, and at least one tooth 50 may be tooth 40 shown in fig. 7.
Claims (11)
1. A tooth sheet is characterized by comprising a root part, a tip part and a spacing belt;
the root part is in contact with a heating element outside the tooth blade, the tip part is positioned on one side of the tooth blade far away from the heating element, and the spacing belt is positioned between the root part and the tip part;
a heated zone is formed between the root and the spacer belt, a cooling zone is formed between the spacer belt and the tip, and a first channel and a second channel are formed between the heated zone and the cooling zone;
the heated area and the cooling area are both provided with at least one longitudinal pipeline, and the at least one longitudinal pipeline of the heated area and the at least one longitudinal pipeline of the cooling area are communicated with each other through the first channel and the second channel;
the position of the spacing belt corresponds to the position of the heating element, the hydraulic diameter of at least one longitudinal pipeline in the heated area is larger than or equal to that of at least one longitudinal pipeline in the cooling area, and the hydraulic diameter is the ratio of four times of the area of the flow cross section to the perimeter.
2. The tooth plate according to claim 1, wherein:
and when the working medium in the tooth piece is in an unheated state, the liquid level of the working medium in the tooth piece is lower than the highest position of the spacing belt, the liquid level of the working medium in the tooth piece is higher than the highest position of the heating element, and the lowest position of the heating element is higher than the lowest position of the spacing belt.
3. The tooth blade according to claim 2, wherein said spacer tape has a length greater than a length of said heating element.
4. A tooth sheet is characterized by comprising a root part, a tip part and a spacing belt;
the root part is in contact with a heating element outside the tooth blade, the tip part is positioned on one side of the tooth blade far away from the heating element, and the spacing belt is positioned between the root part and the tip part;
a heated zone is formed between the root and the spacer belt, a cooling zone is formed between the spacer belt and the tip, and a first channel and a second channel are formed between the heated zone and the cooling zone;
the heating area and the cooling area both comprise a plurality of spacing blocks, the spacing blocks form at least two longitudinal pipelines in the heating area and the cooling area respectively, and the length of a pipeline close to the heating element in the at least two longitudinal pipelines in the heating area is larger than that of a pipeline far away from the heating element; among the at least two longitudinal pipelines of the cooling area, the pipeline length close to the heating element is smaller than the pipeline length far away from the heating element;
the hydraulic diameters of at least two longitudinal pipelines in the heated area are larger than or equal to the hydraulic diameters of at least two longitudinal pipelines in the cooling area, and the hydraulic diameters are the ratio of four times of the flow cross-sectional area to the perimeter.
5. The tooth plate according to claim 4, wherein:
at least two longitudinal pipelines of the heated area are communicated with the first channel, and the flowing direction of working media in the first channel is that the root points to the tip;
at least two longitudinal pipelines of the cooling area are communicated with the second channel, and the flowing direction of working media in the second channel is that the tip part points to the root part.
6. The tooth plate according to claim 4, wherein:
at least two longitudinal pipelines of the heated area are communicated with the second channel, and the flowing direction of working media in the second channel is that the tip part points to the root part;
at least two longitudinal pipelines of the cooling area are communicated with the first channel, and the flowing direction of working media in the first channel is that the root points to the tip.
7. A tooth blade is characterized by comprising a root part, a tip part and at least two spacing belts;
the root part is in contact with a heating element outside the tooth blade, the tip part is positioned on one side of the tooth blade far away from the heating element, and the at least two spacing belts are positioned between the root part and the tip part;
at least two heated zones are formed between the root and the at least two spaced belts, at least two cooling zones are formed between the at least two spaced belts and the tip, a first channel, a second channel and at least one mixing channel are formed between the at least two heated zones and the at least two cooling zones, and the at least one mixing channel is positioned between two adjacent spaced belts in the at least two spaced belts;
the at least two heated zones and the at least two cooling zones are in communication with each other through the first channel, the second channel, and at least one mixing channel;
wherein each of the at least two heated zones has at least one longitudinal conduit and each of the at least two cooling zones has at least one longitudinal conduit;
the hydraulic diameter of at least one longitudinal pipeline of each heating zone in the at least two heating zones is larger than or equal to that of at least one longitudinal pipeline of each cooling zone in the at least two cooling zones, and the hydraulic diameter is the ratio of four times of the area of the flow cross section to the perimeter.
8. A heat sink comprising at least one fin as claimed in any one of claims 1 to 3, 4 to 6 or 7.
9. The heat sink of claim 8, further comprising a substrate;
the root of the at least one tooth sheet is connected to the first surface of the base plate, the second surface of the base plate is in contact with a heating element outside the radiator, and the tip of the at least one tooth sheet is positioned on one side of the tooth sheet far away from the base plate.
10. A communication device comprising at least one blade according to any one of claims 1 to 3, 4 to 6 or 7.
11. The communication device of claim 10, further comprising a substrate and a heat generating element;
the root of the at least one tooth piece is connected to the first surface of the base plate, the second surface of the base plate is in contact with the heating element, and the tip of the at least one tooth piece is positioned on one side of the tooth piece, which is far away from the base plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646776.3A CN112243333B (en) | 2019-07-17 | 2019-07-17 | Tooth piece, radiator and communication equipment |
| PCT/CN2020/110451 WO2021008629A1 (en) | 2019-07-17 | 2020-08-21 | Fin, heat sink, and communications device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910646776.3A CN112243333B (en) | 2019-07-17 | 2019-07-17 | Tooth piece, radiator and communication equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112243333A CN112243333A (en) | 2021-01-19 |
| CN112243333B true CN112243333B (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910646776.3A Active CN112243333B (en) | 2019-07-17 | 2019-07-17 | Tooth piece, radiator and communication equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112243333B (en) |
| WO (1) | WO2021008629A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686947A (en) * | 2016-12-30 | 2017-05-17 | 华为机器有限公司 | Radiator and communication product |
| CN107979962A (en) * | 2018-01-09 | 2018-05-01 | 无锡巨日电子科技有限公司 | Water-cooled circuit plate heat dissipating device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009135142A (en) * | 2007-11-28 | 2009-06-18 | Toyota Industries Corp | Ebullient cooling device |
| JP2011108685A (en) * | 2009-11-12 | 2011-06-02 | Toyota Industries Corp | Natural circulation type boiling cooler |
| CN201828175U (en) * | 2010-07-25 | 2011-05-11 | 东莞市为开金属制品厂 | Heat pipe-type radiator |
| CN201892440U (en) * | 2010-12-02 | 2011-07-06 | 苏州昆拓热控系统股份有限公司 | Novel gas-liquid heat exchange device |
| US20150122460A1 (en) * | 2013-11-06 | 2015-05-07 | Asia Vital Components Co., Ltd. | Heat pipe structure |
-
2019
- 2019-07-17 CN CN201910646776.3A patent/CN112243333B/en active Active
-
2020
- 2020-08-21 WO PCT/CN2020/110451 patent/WO2021008629A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686947A (en) * | 2016-12-30 | 2017-05-17 | 华为机器有限公司 | Radiator and communication product |
| CN107979962A (en) * | 2018-01-09 | 2018-05-01 | 无锡巨日电子科技有限公司 | Water-cooled circuit plate heat dissipating device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021008629A1 (en) | 2021-01-21 |
| CN112243333A (en) | 2021-01-19 |
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