CN209926912U - Fin type radiator based on chimney effect - Google Patents
Fin type radiator based on chimney effect Download PDFInfo
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- CN209926912U CN209926912U CN201920191454.XU CN201920191454U CN209926912U CN 209926912 U CN209926912 U CN 209926912U CN 201920191454 U CN201920191454 U CN 201920191454U CN 209926912 U CN209926912 U CN 209926912U
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- 230000000694 effects Effects 0.000 title claims abstract description 48
- 230000017525 heat dissipation Effects 0.000 description 11
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
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- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of the radiator, especially, relate to a finned radiator based on chimney effect, including base and a plurality of fin, it is a plurality of the fin sets up on the base, base and adjacent two form airflow channel between the fin, airflow channel's below entry's cross sectional area is greater than the cross sectional area of top export, the below entry with the top export all communicates with the external world. Has the advantages that: the utility model discloses a finned radiator based on chimney effect installs this radiator perpendicularly, and device or heat source that generate heat are located the one side that the fin was kept away from to the base, and airflow channel is vertical upwards, and airflow channel's below entry's cross sectional area is greater than the cross sectional area of top export to induced air current rises with higher speed, produces the effect of drawing out the wind based on chimney effect, strengthens airflow channel's air velocity and heat transfer performance, and chimney effect strengthens, and the radiating effect of this radiator strengthens.
Description
Technical Field
The utility model belongs to the technical field of the radiator, especially, relate to a finned radiator based on chimney effect.
Background
The chimney effect refers to the phenomenon that indoor air rises or falls along a space with a vertical slope, so that air convection is enhanced. The chimney causes gas density difference due to different temperatures of the inner gas and the outer gas, and the pressure difference generated by the density difference is wind pulling force, also called chimney draft, which overcomes resistance to push smoke to flow.
In the prior art, each fin of the radiator is equal in width from top to bottom, a plurality of fins are parallel to each other, an airflow channel formed by the fins, a base plate and a cover plate is equal in cross-sectional area of the airflow channel at the vertical height.
Based on the chimney effect, the air flow channel is designed to be large in cross section area of the inlet at the lower part and small in cross section area of the outlet at the upper part, so that the drawing force of the chimney is increased, the air flow speed is accelerated, and the heat transfer performance is enhanced.
For a vertically (or basically vertically) installed radiator, under the condition of natural convection, air absorbs heat when passing through an airflow channel and is heated, and the air density difference exists between the air and the outside air, so that pressure difference is formed, and the air flow is pushed to pass through the airflow channel from bottom to top.
The areas of the upper and lower cross sections of the airflow channel in the prior art are equal, so that the flow velocity in the airflow channel is the same, and the heat dissipation effect is poor. According to the air flow channel, the cross-sectional area of the lower inlet is larger than that of the upper outlet, and the Bernoulli principle shows that the air flow speed of the upper outlet is larger than that of the lower inlet, so that a wind pulling effect is generated, the air flow speed can be accelerated, and the heat dissipation effect is enhanced.
SUMMERY OF THE UTILITY MODEL
The cross sectional area equals about the airflow channel for solving the radiator that prior art exists, then the velocity of flow in the airflow channel is the same leads to the not good problem of radiating effect, the utility model provides a finned radiator based on chimney effect.
For solving the technical problem, the utility model discloses a technical scheme as follows, a finned radiator based on chimney effect, including base and a plurality of fin, it is a plurality of the fin sets up on the base, base and adjacent two form airflow channel between the fin, airflow channel's below entry's cross sectional area is greater than the cross sectional area of top export, the below entry with the top export all communicates with the external world.
Preferably, a cover plate is arranged on one side, away from the base, of the fins. The cover plate, the base and the adjacent fins are enclosed to form the airflow channel which is only provided with the upper opening and the lower opening, so that the whole chimney of the radiator is stronger in effect, better in radiating effect and capable of enhancing the stability and the reliability of the radiator.
Preferably, adjacent fins are arranged obliquely to each other. The radiator is vertically installed when in use, the cross-sectional area of the inlet below the airflow channel is larger than that of the outlet above the airflow channel, and a chimney structure formed by fan-shaped distribution of a plurality of fins is utilized to enhance natural convection so as to enhance the heat dissipation effect.
Preferably, an included angle alpha is formed between adjacent fins, and the included angle alpha is 0.5-10 degrees.
Preferably, the included angle α is 2 ° to 5 °.
Preferably, side frames are arranged on two sides of the base, the fins are located between the two side frames, and air inlet channels communicated with the corresponding air flow channels penetrate through the side frames. The side frame is provided with an air inlet channel to facilitate air circulation, and the side frame enables the radiator to integrally form a chimney effect and enhances the stability and reliability of the radiator.
Further, the adjacent fins are arranged in parallel, and the width of the lower part of each fin is larger than that of the upper part of each fin. The fins are arranged in parallel, so that the fins are convenient to mount on the base; the radiator is vertically installed when in use, the sectional area of the inlet below the airflow channel is larger than that of the outlet above the airflow channel, and the height difference of the two ends of the fin is utilized to enable a product to form a chimney structure with a high bottom and a short top, so that natural convection is enhanced to enhance the heat dissipation effect.
Furthermore, both sides of the base are provided with side plates, and the plurality of fins are located between the two side plates. The side plates are parallel to the fins, and the arrangement of the side plates enables the radiator to integrally form a chimney effect, and meanwhile, the stability and the reliability of the radiator are enhanced.
Further, the fins are perpendicular to the base. The fins are conveniently mounted on the base.
Further, the cross-sectional area of the lower inlet of the airflow passage is 1.1-1.5 times that of the upper outlet. If the area ratio is too small, the effect of enhancing the flow velocity is not obvious; if the area ratio is too large, the total area of the upper outlet is too small, and the resistance of the flow channel is too large, so that heat dissipation is not facilitated.
Has the advantages that: the utility model discloses a finned radiator based on chimney effect installs this radiator perpendicularly, and heating device or heat source are located the base and keep away from one side of fin, and airflow channel is vertical upwards, and airflow channel's the cross sectional area of below entry is greater than the cross sectional area of top export to induced air current rises with higher speed, produces the effect of drawing out the wind based on chimney effect, strengthens airflow channel's air velocity and heat transfer performance, and the chimney effect strengthens, and the radiating effect of this radiator strengthens; the utility model discloses a finned radiator based on chimney effect, simple structure, the function is reliable and stable.
Drawings
FIG. 1 is a schematic perspective view of the structure of example 1;
FIG. 2 is an enlarged partial schematic view of A of FIG. 1;
FIG. 3 is a schematic perspective view of another embodiment 1;
FIG. 4 is a schematic side view of embodiment 1;
FIG. 5 is a schematic perspective view of the preferred embodiment 3;
FIG. 6 is a schematic perspective view of the preferred embodiment 4;
FIG. 7 is a schematic perspective view of another embodiment 4;
FIG. 8 is a schematic side view of embodiment 4;
FIG. 9 is a schematic perspective view of the preferred embodiment 5;
in the figure: 1. the air conditioner comprises a base 11, a cog groove 2, fins 3, an airflow channel 4, a side plate 5, a side frame 51, an air inlet channel 6, a cover plate and an included angle alpha.
Detailed Description
Example 1
As shown in fig. 1 to 4, a finned radiator based on a chimney effect comprises a base 1 and a plurality of fins 2, wherein the plurality of fins 2 are arranged on the base 1, specifically, a cog groove 11 is formed in the base 1, one side of each fin 2 is connected with the base 1 through the cog groove 11, the cog mode is convenient and rapid to install, the fins 2 are perpendicular to the base 1, an airflow channel 3 is formed between the base 1 and two adjacent fins 2, the cross-sectional area of a lower inlet of the airflow channel 3 is larger than that of an upper outlet, the cross-sectional area of a lower inlet of the airflow channel 3 is 1.1-1.5 times that of the upper outlet, and the lower inlet and the upper outlet are communicated with the outside. The fin 2 is rectangular, the existing fin 2 is convenient to use, the fin 2 is convenient to process and manufacture, and the processing cost of the fin 2 is reduced. The adjacent fins 2 are mutually obliquely arranged, an included angle alpha is formed between the adjacent fins 2, and the included angle alpha is 0.5-10 degrees.
In order to improve the stability and reliability of the radiator, side frames 5 are arranged on two sides of the base 1, the plurality of fins 2 are positioned between the two side frames 5, air inlet channels 51 communicated with the corresponding air flow channels 3 penetrate through the side frames 5, and the side frames 5 are added to enable the radiator to integrally form a chimney effect.
The working principle is as follows:
the radiator is vertically installed, a heating device or a heat source is located on one side, far away from the fins 2, of the base 1, the airflow channel 3 is vertically upward, the cross-sectional area of an inlet below the airflow channel 3 is larger than that of an outlet above the airflow channel, accordingly airflow is induced to rise in an accelerated mode, a draught effect is generated based on a chimney effect, the airflow speed and the heat transfer performance of the airflow channel 3 are enhanced, the chimney effect is enhanced, and the heat dissipation effect of the radiator is enhanced.
Example 2
In this example, the difference from example 1 is that the angle α is 2 ° to 5 °. The cross-sectional area of the inlet below the airflow channel 3 is larger than that of the outlet above the airflow channel, so that the number of the fins 2 on the base 1 is increased while the chimney effect is enhanced, namely, the number of the heat dissipation channels is increased, and the heat dissipation effect is further enhanced.
Example 3
As shown in fig. 5, in the present embodiment, the difference from embodiment 1 is that a cover plate 6 is disposed on one side of a plurality of fins 2 away from a base 1, two sides of the cover plate 6 are fixedly connected with corresponding side frames 5, and the cover plate 6, the base 1 and the adjacent fins 2 enclose and close to form the airflow channel 3 which is only open vertically. The cover plate 6 is arranged to enclose the airflow channel 3, the whole chimney effect of the radiator is stronger, the heat dissipation effect is better, and meanwhile, the stability and the reliability of the radiator are enhanced.
Example 4
As shown in fig. 6 to 8, in the present embodiment, the difference from embodiment 1 is that adjacent fins 2 are arranged in parallel, the lower width of the fin 2 is greater than the upper width, and the fin 2 is in a right trapezoid shape; the two sides of the base 1 are provided with side plates 4, the fins 2 are located between the two side plates 4, and the side plates 4 are parallel to the fins 2.
Example 5
As shown in fig. 9, in the present embodiment, the difference from embodiment 4 is that a cover plate 6 is disposed on one side of a plurality of fins 2 away from a base 1, two sides of the cover plate 6 are fixedly connected with corresponding side plates 4, and the cover plate 6, the base 1 and the adjacent fins 2 enclose and form the airflow channel 3 which is only open up and down. The cover plate 6 is arranged to enclose the airflow channel 3, the whole chimney effect of the radiator is stronger, the heat dissipation effect is better, and meanwhile, the stability and the reliability of the radiator are enhanced.
When the lower width of the fin 2 is 1.25 times of the upper width, the flow velocity of an upper outlet is 1.25 times of that of a lower inlet; when the lower inlet airflow temperature is 30 ℃ and the upper outlet airflow temperature is 39 ℃, the airflow flow rate of the technical scheme of the embodiment is increased by 8.6 percent and the heat dissipation capacity is increased by 5.9 percent compared with the fin radiator with the same airflow channel cross-sectional area.
Claims (10)
1. A finned radiator based on chimney effect, its characterized in that: including base (1) and a plurality of fin (2), it is a plurality of fin (2) set up on base (1), base (1) and adjacent two form airflow channel (3) between fin (2), the cross sectional area of the below entry of airflow channel (3) is greater than the cross sectional area of top export, the below entry with the top export all communicates with the external world.
2. The chimney effect based finned heat sink of claim 1, wherein: and a cover plate (6) is arranged on one side, far away from the base (1), of the fins (2).
3. The chimney-effect-based finned radiator according to claim 1 or 2, characterized in that: the adjacent fins (2) are arranged in an inclined mode.
4. The chimney effect based finned heat sink of claim 3, wherein: an included angle alpha is formed between the adjacent fins (2), and the included angle alpha is 0.5-10 degrees.
5. The chimney effect based finned heat sink of claim 4, wherein: the included angle alpha is 2-5 degrees.
6. The chimney effect based finned heat sink of claim 3, wherein: the two sides of the base (1) are provided with side frames (5), the fins (2) are located between the two side frames (5), and air inlet channels (51) communicated with the corresponding air flow channels (3) penetrate through the side frames (5).
7. The chimney-effect-based finned radiator according to claim 1 or 2, characterized in that: the adjacent fins (2) are arranged in parallel, and the width of the lower part of each fin (2) is larger than that of the upper part of each fin.
8. The chimney effect based finned heat sink of claim 7, wherein: both sides of base (1) are provided with curb plate (4), a plurality of fin (2) are located two between curb plate (4).
9. The chimney-effect-based finned radiator according to claim 1 or 2, characterized in that: the fins (2) are perpendicular to the base (1).
10. The chimney-effect-based finned radiator according to claim 1 or 2, characterized in that: the cross-sectional area of the inlet below the airflow channel (3) is 1.1-1.5 times of the cross-sectional area of the outlet above the airflow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920191454.XU CN209926912U (en) | 2019-02-12 | 2019-02-12 | Fin type radiator based on chimney effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920191454.XU CN209926912U (en) | 2019-02-12 | 2019-02-12 | Fin type radiator based on chimney effect |
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| Publication Number | Publication Date |
|---|---|
| CN209926912U true CN209926912U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920191454.XU Active CN209926912U (en) | 2019-02-12 | 2019-02-12 | Fin type radiator based on chimney effect |
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| CN (1) | CN209926912U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050663A (en) * | 2020-09-14 | 2020-12-08 | 刘延林 | Homogenization liquid cooling type aeration cooling device |
| CN112539105A (en) * | 2020-12-15 | 2021-03-23 | 吉安市裕财机械工程有限公司 | Diesel generator's cooling system |
| WO2023213247A1 (en) * | 2022-05-06 | 2023-11-09 | 中兴通讯股份有限公司 | Heat dissipation structure, and device having heat dissipation structure and to be subjected to heat dissipation |
-
2019
- 2019-02-12 CN CN201920191454.XU patent/CN209926912U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050663A (en) * | 2020-09-14 | 2020-12-08 | 刘延林 | Homogenization liquid cooling type aeration cooling device |
| CN112539105A (en) * | 2020-12-15 | 2021-03-23 | 吉安市裕财机械工程有限公司 | Diesel generator's cooling system |
| WO2023213247A1 (en) * | 2022-05-06 | 2023-11-09 | 中兴通讯股份有限公司 | Heat dissipation structure, and device having heat dissipation structure and to be subjected to heat dissipation |
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Address after: 213176 No.20, Jiandong Road, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou Hengchuang Thermal Management System Co.,Ltd. Country or region after: China Address before: 213176 No.20, Jiandong Road, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU HENGCHUANG HEAT MANAGEMENT Co.,Ltd. Country or region before: China |