CN106793668A - A kind of radiator and communication equipment - Google Patents
A kind of radiator and communication equipment Download PDFInfo
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- CN106793668A CN106793668A CN201510801118.9A CN201510801118A CN106793668A CN 106793668 A CN106793668 A CN 106793668A CN 201510801118 A CN201510801118 A CN 201510801118A CN 106793668 A CN106793668 A CN 106793668A
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Abstract
本发明涉及到通信设备的技术领域，公开了一种散热器及通信设备，该散热器包括相对设置的散热基板及散热板，间隔设置在散热基板及散热板之间的多个翅片，且多个翅片将散热基板及散热板之间的空间间隔成多个并排排列且两端具有开口的散热通道；其中，多个散热结构；相邻的散热结构围成进气通道，进气通道的进气口的横截面积大于出气口的横截面积，且进气通道的出气口与其中一个散热通道连通。本发明的有益效果为：通过散热结构及进气通道，翅片将散热基板处产生的热量传导至散热结构上，由于散热结构位于冷却空气入口处，可以强化冷空气的对流，因此起到散热作用的散热结构消除了温度级联效应，提升了空气对流能力，提高了产品散热能力。
The present invention relates to the technical field of communication equipment, and discloses a radiator and communication equipment. The radiator includes a heat dissipation substrate and a heat dissipation plate arranged oppositely, and a plurality of fins arranged at intervals between the heat dissipation substrate and the heat dissipation plate. A plurality of fins divide the space between the heat dissipation substrate and the heat dissipation plate into a plurality of heat dissipation channels arranged side by side with openings at both ends; among them, a plurality of heat dissipation structures; adjacent heat dissipation structures form an air intake channel, and the air intake channel The cross-sectional area of the air inlet is larger than the cross-sectional area of the air outlet, and the air outlet of the air inlet channel communicates with one of the heat dissipation channels. The beneficial effects of the present invention are: through the heat dissipation structure and the air intake channel, the fins conduct the heat generated at the heat dissipation substrate to the heat dissipation structure, and since the heat dissipation structure is located at the inlet of the cooling air, the convection of the cold air can be strengthened, thus playing a role in heat dissipation. The effective heat dissipation structure eliminates the temperature cascade effect, improves the air convection ability, and improves the heat dissipation ability of the product.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a radiator and communication equipment.
Background
Communication devices generally adopt a natural heat dissipation form for reliability, and a heat sink of the communication device adopts a sheet-shaped or pin-shaped fin for heat dissipation, as shown in fig. 1, an internal airflow is heated and ascends in a direction opposite to a gravity direction, and the fin heat dissipation efficiency is lower as the heat sink goes upward.
As shown in fig. 2, the heat sink includes a base plate 1 and fins 2 vertically arranged on the base plate 1. In the height direction of the communication equipment, a vertically-through fin form is adopted, cooling airflow in the radiator is heated in the process of rising along the direction opposite to gravity, a temperature cascade effect is generated, and the efficiency of the airflow downstream fin 2 is reduced. The cooling air flow rises in the gap of the open fin 2 along the opposite direction of gravity after being heated, and the flow rate of the air flow is limited.
As shown in fig. 3, the heat sink includes a base plate 1 and fins 2 provided obliquely on the base plate 1. When the airflow flowing direction is left-down, right-up and left-up, the airflow is heated along the flowing process of the fins 2, a temperature cascade effect is generated, and the efficiency of the fins 2 at the downstream of the airflow is reduced. The cooling air flow rises in the open fin gaps along the opposite direction of gravity after being heated, and the flow rate of the air flow is limited. The flow passage of the inclined fin 2 becomes short, the buoyancy is weakened, and the flow rate of the cooling air is reduced. The flow of the air is enhanced by the resistance of the fins in the oblique flow process, so that the flow of the cooling air is reduced.
As shown in fig. 4, the heat sink includes a substrate 1 and a plurality of protruding structures 3 disposed on the substrate 1, the flow direction of the air flow mainly enters from bottom to top, and has a side-in and side-out component, the cooling air flow is heated in the process of flowing in the direction opposite to the gravity direction in the gaps of the protruding structures, and the efficiency of the protruding structures in the air flow is reduced. After being heated, the cooling air flow rises in the open pin fin gaps along the opposite direction of gravity, and the flow of the air flow is limited, so that the heat dissipation effect is poor.
Disclosure of Invention
The invention provides a radiator and communication equipment, which are used for improving the radiating effect of the radiator and further improving the radiating effect of the communication equipment.
In a first aspect, a heat sink is provided, which includes a heat dissipation substrate and a heat dissipation plate that are arranged oppositely, and a plurality of fins that are arranged between the heat dissipation substrate and the heat dissipation plate at intervals, and the fins divide a space between the heat dissipation substrate and the heat dissipation plate into a plurality of heat dissipation channels that are arranged side by side and have openings at two ends; wherein,
the heat dissipation plate is provided with a plurality of heat dissipation structures; and in the length direction of the heat dissipation channels, the adjacent heat dissipation structures form an air inlet channel in an enclosing manner, the cross section area of an air inlet of the air inlet channel is larger than that of an air outlet, and the air outlet of the air inlet channel is communicated with one of the heat dissipation channels.
With reference to the first aspect, in a first possible implementation manner, a plurality of intake passages communicating with each heat dissipation passage are arrayed.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, an opening at one end of the heat dissipation channel with openings at two ends is a cold air inlet, and an opening at the other end is a hot air outlet; the air inlet channels arranged in an array are positioned at one end, close to the cold air inlet, of the heat dissipation substrate.
With reference to the first aspect, in a third possible implementation manner, the heat dissipation structure includes two support plates and blades disposed on the heat dissipation plate, and the two support plates, the blades connected between the two support plates, and the blades in another heat dissipation structure adjacent to the heat dissipation structure enclose an air inlet channel of the heat dissipation structure.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, an included angle between the blade and the heat dissipation plate is between 0 and 90 °.
With reference to the third possible implementation manner of the first aspect, in a fifth possible implementation manner, the supporting plate is obliquely arranged on the heat dissipation plate.
With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, an included angle between the support plate and the heat dissipation plate is between 0 ° and 90 °.
With reference to the third possible implementation manner of the first aspect, the fourth possible implementation manner of the first aspect, the fifth possible implementation manner of the first aspect, and the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the support plate and the blade are an integral structure.
With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, the integral structure of the support plate and the blade is an aluminum plate stamping integral forming structure with a thickness of 0.5mm to 3 mm.
With reference to the first aspect, in a ninth possible implementation manner, the heat dissipation plate and the fins are bonded or welded; or the heat dissipation plate is connected with the fins through connecting pieces; or the heat dissipation plate and the fins are clamped and fixed.
In a second aspect, there is provided a communication device comprising a device body and a heat sink as described in any of the above; and the heat dissipation substrate in the radiator is fixedly connected with the equipment column.
According to the radiator that the first aspect provided, the communication equipment that the second aspect provided, through adopting the fin to become a plurality of radiating passage who arranges side by side with the space interval between radiating basal plate and the heating panel to form the structure of a similar chimney, the convulsions effect through the chimney improves the convection current effect of air. Meanwhile, a plurality of heat dissipation structures are arranged on the heat dissipation plate, air inlet channels of the heat dissipation structures are communicated with the heat dissipation channels, cold air entering the heat dissipation channels is increased, the air inlet channels are of a structure that an air outlet is smaller than an air inlet, convection of the cold air is further strengthened, and the heat dissipation capacity of a product is improved.
Drawings
FIG. 1 is a prior art heat sink configuration;
FIG. 2 is a structure of another heat sink in the prior art;
FIG. 3 is a structure of another heat sink in the prior art;
FIG. 4 is a structure of another heat sink in the prior art;
FIG. 5 is an exploded view of a heat sink provided in accordance with an embodiment of the present invention;
FIG. 6 is an assembled view of a heat sink according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view taken at A-A of FIG. 6;
fig. 8 is a schematic structural diagram of a heat dissipation structure in a heat sink according to an embodiment of the present invention.
Reference numerals:
1-substrate 2-fin 3-projection structure
10-radiating base plate 11-fin 12-fastener
20-heat sink 21-heat sink 211-support plate
212-blade 22-through hole 23-air inlet channel
231-air outlet 30-heat dissipation channel
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that, in the present embodiment, the description is made when the structure of the heat sink is described in a manner that the heat sink is placed vertically, that is, the cold air inlet of the heat sink is placed below, when the structure relates to the direction.
As shown in fig. 5, 6, 7 and 8, fig. 5 is an exploded view of a heat sink according to an embodiment of the present invention, fig. 6 is an assembled view of the heat sink according to the embodiment of the present invention, fig. 7 is a cross-sectional view taken along a-a of fig. 6, and fig. 8 is a structural schematic view of a heat dissipation structure.
The embodiment of the invention provides a radiator, which comprises a radiating substrate 10 and a radiating plate 20 which are oppositely arranged, and a plurality of fins 11 which are arranged between the radiating substrate 10 and the radiating plate 20 at intervals, wherein the plurality of fins 11 are used for spacing the space between the radiating substrate 10 and the radiating plate 20 into a plurality of radiating channels 30 which are arranged side by side and have openings at two ends; wherein,
the heat dissipation plate 20 is provided with a plurality of heat dissipation structures 21; scattered along the length direction of the heat dissipation channels 30, the adjacent heat dissipation structures 21 have air inlet channels 23, the cross-sectional area of the air inlet channel 23 is larger than that of the air outlet 231, and the air outlet 231 of the air inlet channel 23 is communicated with one of the heat dissipation channels 30.
In the above embodiment, the fins 11 are used to divide the space between the heat dissipation substrate 10 and the heat dissipation plate 20 into a plurality of heat dissipation channels 30 arranged side by side, so as to form a structure similar to a chimney, and the air convection effect is improved by the air draft effect of the chimney. Meanwhile, a plurality of heat dissipation structures are arranged on the heat dissipation plate 20, air inlet channels among the heat dissipation structures are communicated with the heat dissipation channels 30, cold air entering the heat dissipation channels 30 is increased, the air inlet channels are of a structure that the air outlets 231 are smaller than the air inlets, and air convection is further increased. During heat dissipation, the fins 11 conduct heat generated at the heat dissipation substrate 10 to the heat dissipation structure 21, and cold air enters the heat dissipation channel from the inlet of the heat dissipation structure 21.
For the sake of facilitating understanding of the structure and operation principle of the heat sink provided in the present embodiment, the following detailed description is made with reference to specific embodiments.
With continuing reference to fig. 5, it can be seen from fig. 5 that the heat sink provided by the present embodiment includes three parts: radiating basal plate 10, fin 11 and heating panel 20, fin 11 wherein is vertical fin, and a plurality of fins 11 are along horizontal arrangement, consequently, cover heating panel 20 on fin 11 and radiating basal plate 10 and fin 11 enclose into a plurality of radiating passage 30, and the similar structure of chimney of the effect of this radiating passage 30 has accelerated the flow of hot-air through this chimney structure, and then has improved the radiating effect of radiator.
When the heat dissipation plate 20 is covered on the fins 11 for fixing, different fixing manners may be adopted, such as bonding connection or welding connection between the heat dissipation plate 20 and the fins 11; or, the heat dissipation plate 20 is connected with the fins 11 through connecting pieces; alternatively, the heat sink 20 and the fins 11 are engaged and fixed to each other. In the present embodiment, the heat sink 20 is engaged with and fixed to the fins 11. More specifically, the fins 11 are provided with a plurality of clips 12, and the heat dissipation plate 20 is provided with through holes 22 that are engaged with the clips 12. Referring to fig. 6, it can be seen from fig. 6 that, in the heat dissipation plate 20 and the fins 11 provided in this embodiment, the side end surfaces of the fins 11 are narrow, which makes it difficult to provide structures such as openings, and therefore, the heat dissipation plate 20 is provided with the through holes 22 and the fasteners 12 on the fins 11. And in order to improve the connection strength between the heat dissipation plate 20 and the fins 11, preferably, each fin 11 is provided with a plurality of buckles 12 along the vertical side wall thereof, the corresponding heat dissipation plate 20 is provided with a through hole 22 corresponding to each buckle 12, the connection strength between the heat dissipation plate 20 and the fins 11 is enhanced through the clamping fit of the plurality of buckles 12 and the through holes 22, and the interference fit is adopted between each buckle 12 and the through hole 22, so that the connection strength between the two is ensured.
In the present embodiment, in order to improve the heat dissipation effect of the heat sink, a heat dissipation structure 21 is provided on the heat dissipation plate 20; along the length direction of the heat dissipation channels 30, the adjacent heat dissipation structures enclose an air inlet channel 23, the cross-sectional area of an air inlet of the air inlet channel 23 is larger than that of an air outlet 231, the air outlet 231 of the air inlet channel 23 is communicated with one of the heat dissipation channels 30, when the heat dissipation structure is specifically arranged, the number of the air inlet channels 23 communicated with each heat dissipation channel 30 is multiple, when the heat dissipation structure is specifically arranged, the multiple air inlet channels 23 are arrayed, namely, each heat dissipation channel 30 is communicated with one row of the air inlet channels 23, and when the heat dissipation structure is arranged, each row of the air inlet channels 23 are arranged on the heat dissipation substrate 10 and located between two adjacent fins 11. The specific arrangement is shown in fig. 7, wherein one end of the heat dissipation channel 30 with two open ends is open to form a cold air inlet, and the other end is open to form a hot air outlet, and in fig. 7, the lower opening is the cold air inlet. The air inlet channels 23 arranged in an array are located at one end of the heat dissipation substrate 10 close to the cold air inlet. That is, when the heat dissipating structure 21 is disposed, the heat dissipating structure 21 is disposed close to the cool air inlet and away from the hot air outlet 231. Therefore, the formed air inlet channel 23 is close to the cold air inlet end, the air convection capacity is improved, and the heat dissipation capacity of the product is improved.
Referring to fig. 7 and 8, as shown in fig. 8, the air inlet channel 23 is a funnel-shaped structure, wherein the end with a larger opening is an air inlet, and the end with a smaller opening is an air outlet 231. When the air intake passage 23 is provided on the heat dissipation plate 20, the air intake passage 23 is surrounded by the adjacent heat dissipation structures 21, and the air outlet 231 of the air intake passage 23 communicates with the heat dissipation passage 30. By adopting the structure, when cold air flows through the air inlet channel 23, the cold air enters from the air inlet of the air inlet channel 23, the air outlet 231 flows out, and the air inlet channel 23 adopts a structure with a large inlet and a small outlet, so that the speed of the flowing cold air is accelerated, the effect of air convection is improved, the speed of the cold air entering the heat dissipation channel 30 is improved, the heat dissipation effect of the heat radiator is improved, and the heat dissipation effect of the communication equipment is further improved. In addition, the heat dissipated from the heat dissipating substrate 10 can be transferred to the heat dissipating structure 21 by the cold air flowing through the air inlet channel 23 to accelerate the heat dissipation effect.
The air inlet channel 23 formed in the radiator structure can be in different shapes, and only the fact that the opening of the air inlet of the radiator structure is larger than the air outlet is required to be guaranteed, the shapes of the air inlet and the air outlet are not limited, if the air inlet and the air outlet are formed to be in different shapes such as rectangle, trapezoid, circle or ellipse, the air flowing speed can be guaranteed to be improved. In a specific arrangement, the air inlet channel 23 is defined by two adjacent heat dissipation structures, as shown in fig. 7 and 8, in the present embodiment, the heat dissipation structure 21 includes two support plates 211 and blades 212 disposed on the heat dissipation plate 20, and the two support plates 211, the blades 212 connected between the two support plates 211, and the blades 212 in another heat dissipation structure 21 adjacent to the heat dissipation structure define the air inlet channel 23.
For convenience of describing the shape of the intake passage 23, the heat dissipation structure 21 having two support plates 211 and one blade 212 will be described below as an example.
When the heat dissipation structure 21 is specifically arranged, the heat dissipation structure 21 is arranged on one side of the heat dissipation plate 20 facing the heat dissipation channel 30, and when the heat dissipation structure 21 is specifically arranged, different structural modes can be adopted, specifically, if a mode that the support plate 211 forms an included angle with a vertical direction, and the blades 212 are arranged perpendicular to the heat dissipation plate 20 is adopted, so that the support plate 211 and the blades 212 of one heat dissipation structure 21 and the blades 212 in the adjacent heat dissipation structure 21 enclose an air inlet channel 23 with a trapezoidal table, and at this time, the blades 212 are in a trapezoidal shape; or the blades 212 and the supporting plates 211 are arranged obliquely relative to the heat dissipation plate 20, at this time, the two supporting plates 211 are inclined relatively, and the air inlet channel 23 formed by the surrounding is an inclined trapezoidal table-shaped channel.
As a preferred embodiment, as shown in fig. 7 and 8, in the present embodiment, the fins 212 are provided to be inclined with respect to the heat radiating plate 20. When the heat dissipating structure 21 is provided, the size of the fins 212 is much larger than that of the support plate 211, thereby forming an oblong structure. The inclination angle of the blade 212 can be set as required, preferably, the included angle between the blade 212 and the heat dissipation plate 20 in the heat dissipation structure 21 is 0 to 90 °, such as 30 °, 50 °, 60 °, 80 °, and any angle between 0 to 90 °.
To increase the difference between the cross-sectional area of the air inlet and the cross-sectional area of the air outlet 231, and further increase the acceleration effect of the air. In this embodiment, the supporting plates 211 are obliquely disposed on the heat dissipation plate 20, and when the heat dissipation plate is specifically disposed, the two supporting plates 211 are relatively inclined, that is, the inclination directions of the two supporting plates 211 are opposite, and the included angle between the supporting plates 211 and the heat dissipation plate 20 is between 0 ° and 90 °, such as an angle between 0 ° and 90 ° arbitrarily, for example, 2 °, 3 °, 10 °, 20 °. So that the two supporting plates 211 and the blades 212 of one heat dissipating structure 21 and the adjacent blades 212 of the other heat dissipating structure 21 enclose an inclined trapezoidal inlet passage 23.
As can be seen from the above description, the funnel shape formed by the heat dissipation structure 21 provided in the present embodiment may be different shapes, and the blades 212 and the support plate 211 may also be designed in different manners, that is, the blades 212 and the support plate 211 are connected in a split manner, or the blades 212 and the support plate 211 are connected in an integrated manner. Preferably, the supporting plate 211 and the blade 212 are an integral structure. And when specifically setting up, the integral structure of backup pad 211 and blade 212 is 0.5mm ~ 3mm thickness aluminum plate punching press integrated into one piece structure. Thereby facilitating the production of the heat dissipation structure 21.
The embodiment of the invention also provides communication equipment, which comprises an equipment main body and any radiator; and the heat dissipation substrate in the radiator is fixedly connected with the equipment column.
In the above embodiment, the fins are used to divide the space between the heat dissipation substrate and the heat dissipation plate into a plurality of heat dissipation channels arranged side by side, so as to form a structure similar to a chimney, and the air convection effect is improved through the air draft effect of the chimney. Meanwhile, a plurality of heat dissipation structures are arranged on the heat dissipation plate, air inlet channels between the heat dissipation structures are communicated with the heat dissipation channels, cold air entering the heat dissipation channels is increased, the air inlet channels are of a structure that an air outlet is smaller than an air inlet, and air convection is further increased. When the heat dissipation structure is used for dissipating heat, the fins conduct heat generated at the heat dissipation base plate to the heat dissipation structure, cold air enters the heat dissipation channel from the inlet of the heat dissipation structure, and the cross section area of the air inlet is larger than that of the air outlet, so that the convection of the cold air is enhanced, the air convection capacity is improved, and the heat dissipation capacity of a product is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A radiator is characterized by comprising a radiating substrate and a radiating plate which are oppositely arranged, and a plurality of fins which are arranged between the radiating substrate and the radiating plate at intervals, wherein the plurality of fins divide the space between the radiating substrate and the radiating plate into a plurality of radiating channels which are arranged side by side and have openings at two ends; wherein,
the heat dissipation plate is provided with a plurality of heat dissipation structures; and in the length direction of the heat dissipation channels, the adjacent heat dissipation structures form an air inlet channel in an enclosing manner, the cross section area of an air inlet of the air inlet channel is larger than that of an air outlet, and the air outlet of the air inlet channel is communicated with one of the heat dissipation channels.
2. The heat sink of claim 1, wherein an array of inlet passages is provided in communication with each heat sink passage.
3. The heat sink according to claim 2, wherein the heat dissipating channel with both open ends has one open end for a cool air inlet and the other open end for a hot air outlet; the air inlet channels arranged in an array are positioned at one end, close to the cold air inlet, of the heat dissipation substrate.
4. The heat sink of claim 1, wherein the heat dissipating structure comprises two support plates and fins disposed on the heat dissipating plate, and the two support plates, the fins connected between the two support plates, and the fins in another heat dissipating structure adjacent to the heat dissipating structure enclose the air inlet passage of the heat dissipating structure.
5. The heat sink as claimed in claim 4, wherein the angle between the blades and the heat dissipating plate is between 0 ° and 90 °.
6. The heat sink as claimed in claim 4, wherein the support plate is obliquely disposed to the heat radiating plate.
7. The heat sink as claimed in claim 6, wherein the angle between the supporting plate and the heat dissipating plate is between 0 ° and 90 °.
8. The heat sink as claimed in any one of claims 4 to 7, wherein the supporting plate and the fins are of a unitary structure.
9. The heat sink of claim 8, wherein the integral structure of the support plate and the fins is a 0.5mm to 3mm thick aluminum plate stamped and integrally formed structure.
10. The heat sink according to claim 1, wherein the heat dissipating plate is bonded or welded to the fins; or the heat dissipation plate is connected with the fins through connecting pieces; or the heat dissipation plate and the fins are clamped and fixed.
11. A communication apparatus comprising an apparatus main body and the heat sink according to any one of claims 1 to 10; and the heat dissipation substrate in the radiator is fixedly connected with the equipment column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801118.9A CN106793668B (en) | 2015-11-19 | 2015-11-19 | A radiator and communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510801118.9A CN106793668B (en) | 2015-11-19 | 2015-11-19 | A radiator and communication equipment |
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| CN106793668A true CN106793668A (en) | 2017-05-31 |
| CN106793668B CN106793668B (en) | 2019-06-11 |
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| CN110856419A (en) * | 2019-11-21 | 2020-02-28 | 东台市高科技术创业园有限公司 | Radiator of electronic device |
| CN111465295A (en) * | 2020-05-26 | 2020-07-28 | 镇江奥达电子有限公司 | Heat radiator |
| CN112351633A (en) * | 2019-08-07 | 2021-02-09 | 杭州海康威视数字技术股份有限公司 | Heat dissipation assembly and electronic equipment |
| CN112399771A (en) * | 2019-08-15 | 2021-02-23 | 大唐移动通信设备有限公司 | A kind of cooling device and base station |
| CN113207270A (en) * | 2021-05-31 | 2021-08-03 | 深圳市银宝山新科技股份有限公司 | Heat sink device |
| CN113424666A (en) * | 2019-02-12 | 2021-09-21 | 华为技术有限公司 | Radiator for radio remote unit |
| CN113710027A (en) * | 2021-08-18 | 2021-11-26 | 锐捷网络股份有限公司 | Optical module cage and communication equipment |
| WO2022037329A1 (en) * | 2020-08-18 | 2022-02-24 | 中兴通讯股份有限公司 | Heat dissipation apparatus and communication device |
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