CN211578732U

CN211578732U - Heat exchange radiating system

Info

Publication number: CN211578732U
Application number: CN201922307372.XU
Authority: CN
Inventors: 汪林; 龚振兴; 黄明彬; 唐川
Original assignee: Kunshan Ping Tai Electronic Co ltd
Current assignee: Kunshan Ping Tai Electronic Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-09-25
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a heat exchange heat dissipation system, which comprises a metal substrate and a plurality of fins arranged on the metal substrate, wherein a plurality of mounting grooves are arranged on one side surface of the metal substrate, the fins comprise a first aluminum plate and a second aluminum plate which are arranged face to face, and the respective edges of the first aluminum plate and the second aluminum plate are connected together, thereby forming a cavity; the fin further comprises a fin body and a bending part located at the upper end of the fin body, the lower end of the fin body is provided with a flanging part bent upwards, the flanging part and the lower part of the fin body are arranged face to face, a gap is formed between the adjacent fin bodies of the fin, the flanging part and the lower part of the fin body of the fin are both embedded into the mounting groove, and the bending part of the fin is close to the fin body of the adjacent fin. The utility model discloses be favorable to the heat diffusion, also improve the holistic anti deformation intensity of a plurality of fin, guaranteed radiator global design's stability, improved product reliability and life.

Description

Heat exchange radiating system

Technical Field

The utility model relates to a radiator belongs to the electrical product field.

Background

With the rapid development of electronic technology, higher performance, higher density and higher intelligence are required for chips, the integration level, packaging density and operating frequency of the chips are continuously improved, the required power consumption of a single chip is increased, high heat flux density heat control or cooling processing mode of a large server is widely concerned, the design requirement of the compact structure of the device makes the heat dissipation more difficult, so in order to ensure that the chip can normally operate more efficiently and more stably, in order to maintain the efficient heat dissipation function of the heat sink, the size and weight of the heat sink are increased, and the heat sink is heavier, however, in the server system, various electronic components, structural members, chips and the like occupy a certain space, the space provided for the heat sink is very limited, how to design a radiator with higher efficiency in a limited space urgently needs to adopt a more efficient heat dissipation technology to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heat exchange cooling system, this heat exchange cooling system had both formed the air current wind channel of not leaking out, was favorable to the heat diffusion, also improved the holistic anti deformation intensity of a plurality of fin, had guaranteed radiator global design's stability, had improved product reliability and life, had reduced the holistic weight of radiator and cost.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a heat exchange heat dissipation system comprises a metal base plate, a fan and a plurality of fins arranged on the metal base plate, wherein the fan is arranged on one side of the base plate and one side of the plurality of fins; the fin comprises a first aluminum plate and a second aluminum plate which are arranged face to face, the edges of the first aluminum plate and the second aluminum plate are connected together, the first aluminum plate and the second aluminum plate are connected through a plurality of connecting points distributed in compartments, the first aluminum plate and the second aluminum plate protrude outwards relative to the connecting points, so that a cavity is formed, the cavity between the first aluminum plate and the second aluminum plate is divided into a plurality of flow channels through the plurality of connecting points, and condensing agents are filled in the flow channels;

the fin further comprises a fin body and a bending part positioned at the upper end of the fin body, the lower end of the fin body is provided with a flanging part which is bent upwards, the flanging part and the lower part of the fin body are arranged face to face, a gap is arranged between the fin bodies of the adjacent fins, the flanging part of the fin and the lower part of the fin body are both embedded into the mounting groove, and the bending part of the fin is close to the fin body of the adjacent fin; the base plate further comprises an aluminum plate body and a copper block embedded in the groove of the aluminum plate body.

The further improved scheme in the technical scheme is as follows:

1. in the above scheme, the mounting groove is opened on the aluminum plate body and is run through with the recess, the portion of inserting directly of fin imbeds the mounting groove that is located the aluminum plate body and contacts with the copper billet.

2. In the above scheme, the aluminum plate body is provided with a plurality of mounting grooves which are arranged in parallel.

3. In the above scheme, the tail end of the flanging part is provided with a downward secondary flanging part, the secondary flanging part is positioned between the flanging part and the fin body, and the secondary flanging part is positioned in the mounting groove.

4. In the scheme, the flanging part, the lower part of the fin body and the mounting groove are connected through gluing, riveting or welding.

5. In the scheme, the thickness of the fin is 0.8-1.2 mm.

Because of the application of the technical scheme, compared with the prior art, the utility model have following advantage and effect:

1. the heat exchange radiating system has the advantages that the height of the inner cavity of the fin is increased, the resistance of the reflux of the condensing agent is further reduced, and the uniformity of the surface temperature of the radiator fin and the radiating efficiency of the radiator are further improved; in addition, one end of the fin body is provided with a bending part, a gap is arranged between the adjacent fin bodies of the fins, and the bending part of each fin is close to the adjacent fin body, so that an air flow duct without air leakage is formed, heat diffusion is facilitated, the integral deformation resistance of a plurality of fins is improved, and the stability of the integral design of the radiator is ensured; in addition, the base plate further comprises an aluminum plate body and a copper block embedded in the groove of the aluminum plate body, and the overall weight and cost of the radiator are reduced on the premise of ensuring that the overall heat dissipation performance is unchanged.

2. The heat exchange radiating system of the utility model has the advantages that the lower end of the fin body is provided with the flanging part which is bent upwards, the flanging part and the lower part of the fin body are arranged face to face, the flanging part and the lower part of the fin body of the fin are both embedded into the mounting groove of the metal substrate, the contact area between the fin and the bottom and the side wall of the metal substrate for receiving a heat source can be increased, the heat transfer rate is improved, the reduction of thermal resistance and heat dissipation time is facilitated, the bonding strength between the fin and the mounting groove is greatly improved, the product reliability is improved, and the service life is prolonged; and secondly, the tail end of the flanging part is provided with a downward secondary flanging part, the secondary flanging part is positioned between the flanging part and the fin body, and the secondary flanging part is positioned in the mounting groove, so that the improvement of the bonding strength with the mounting groove further improved by extending in the width direction during crimping is facilitated.

Drawings

FIG. 1 is a schematic structural view of a heat exchange heat dissipation system of the present invention;

fig. 2 is a schematic view of a partial structure of the heat exchange heat dissipation system of the present invention;

FIG. 3 is a schematic view of a fin structure of the heat sink of the present invention;

FIG. 4 is a schematic view of another fin structure of the heat sink of the present invention;

FIG. 5 is a schematic view of a portion of the structure of FIG. 4;

FIG. 6 is a schematic partial cross-sectional view of a fin according to the present invention;

FIG. 7 is a schematic view of a partial cross-section of a fin according to the present invention;

fig. 8 is a schematic view of the heat exchange heat dissipation system of the present invention.

In the above drawings: 1. a metal substrate; 2. a fin; 21. a first aluminum plate; 22. a second aluminum plate; 23. a fin body; 3. mounting grooves; 4. a cavity; 5. a joining point; 6. a flow channel; 7. a gap; 8. a bending part; 9. flanging part; 91. a secondary flanging part; 10. an aluminum plate body; 101. a groove; 11. a fan; 12. and (4) a copper block.

Detailed Description

In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.

Example 1: a heat exchange heat dissipation system comprises a metal base plate 1, a fan 11 and a plurality of fins 2 arranged on the metal base plate 1, wherein the fan 11 is arranged on one side of the base plate 1 and one side of the plurality of fins 2; the fin comprises a metal base plate 1, a plurality of mounting grooves 3 are formed in one side surface of the metal base plate 1, fins 2 comprise a first aluminum plate 21 and a second aluminum plate 22 which are arranged face to face, the edges of the first aluminum plate 21 and the second aluminum plate 22 are connected together, the first aluminum plate 21 and the second aluminum plate 22 are connected through a plurality of connecting points 5 distributed in compartments, the first aluminum plate 21 and the second aluminum plate 22 are outwards protruded relative to the connecting points 5, a cavity 4 is formed, the cavity between the first aluminum plate 21 and the second aluminum plate 22 is divided into a plurality of flow channels 6 through the connecting points 5, and condensing agents are filled in the flow channels 6;

the fin 2 further comprises a fin body 23 and a bending part 8 positioned at the upper end of the fin body 23, the lower end of the fin body 23 is provided with a flanging part 9 which is bent upwards, the flanging part 9 is arranged face to face with the lower part of the fin body 23, a gap 7 is arranged between the adjacent fin bodies 23 of the fin 2, the flanging part 9 of the fin 2 and the lower part of the fin body 23 are both embedded into the mounting groove 3, and the bending part 8 of the fin 2 is close to the fin body 23 of the adjacent fin 2; the base plate 1 further comprises an aluminum plate body 10 and a copper block 12 embedded in the groove 101 of the aluminum plate body 10.

The mounting groove 3 is formed in the aluminum plate body 10 and communicated with the groove 101, and the straight insertion portion of the fin 2 is embedded into the mounting groove 3 of the aluminum plate body 10 and contacts with the copper block 12.

The aluminum plate body 10 is provided with a plurality of mounting grooves 3 arranged in parallel.

The end of the flange part 9 has a downward sub-flange part 91, the sub-flange part 91 is located between the flange part 9 and the fin body 23, and the sub-flange part 91 is located in the mounting groove 3.

The flanging part 9 and the lower part of the fin body 23 are connected with the mounting groove 3 through press riveting.

The thickness of the fin 2 was 0.9 mm.

Example 2: a heat exchange heat dissipation system comprises a metal base plate 1, a fan 11 and a plurality of fins 2 arranged on the metal base plate 1, wherein the fan 11 is arranged on one side of the base plate 1 and one side of the plurality of fins 2; the fin comprises a metal base plate 1, a plurality of mounting grooves 3 are formed in one side surface of the metal base plate 1, fins 2 comprise a first aluminum plate 21 and a second aluminum plate 22 which are arranged face to face, the edges of the first aluminum plate 21 and the second aluminum plate 22 are connected together, the first aluminum plate 21 and the second aluminum plate 22 are connected through a plurality of connecting points 5 distributed in compartments, the first aluminum plate 21 and the second aluminum plate 22 are outwards protruded relative to the connecting points 5, a cavity 4 is formed, the cavity between the first aluminum plate 21 and the second aluminum plate 22 is divided into a plurality of flow channels 6 through the connecting points 5, and condensing agents are filled in the flow channels 6;

The flanging part 9 and the lower part of the fin body 23 are connected with the mounting groove 3 through welding, and the thickness of the fin 2 is 1 mm.

When the heat exchange radiating system is adopted, the height of the inner cavity of the fin is increased, the resistance of the reflux of the condensing agent is further reduced, and the uniformity of the surface temperature of the fin of the radiator and the radiating efficiency of the radiator are further improved; in addition, an air flow duct which does not leak air is formed, heat diffusion is facilitated, the integral deformation resistance strength of the plurality of fins is improved, and the stability of the integral design of the radiator is ensured; in addition, the contact area between the fins and the bottom and the side wall of the metal substrate for receiving the heat source can be increased, the heat transfer rate is improved, the reduction of thermal resistance and heat dissipation time is facilitated, the bonding strength between the fins and the mounting groove is also improved greatly, the reliability of the product is improved, and the service life of the product is prolonged; secondly, the width direction of the mounting groove is extended in the crimping process, so that the bonding strength with the mounting groove is further improved; and moreover, the weight and the cost of the whole radiator are reduced on the premise of ensuring that the whole radiating performance is not changed.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A heat exchange heat dissipation system, comprising: the fan comprises a metal base plate (1), a fan (11) and a plurality of fins (2) arranged on the metal base plate (1), wherein the fan (11) is arranged on one side of the base plate (1) and the plurality of fins (2); the fin comprises a metal base plate (1), wherein a plurality of mounting grooves (3) are formed in one side surface of the metal base plate (1), fins (2) comprise a first aluminum plate (21) and a second aluminum plate (22) which are arranged face to face, the edges of the first aluminum plate (21) and the second aluminum plate (22) are connected together, the first aluminum plate (21) and the second aluminum plate (22) are connected through connecting points (5) distributed in a plurality of compartments, the connecting points (5) are outwards protruded relative to the connecting points (5) to form a cavity (4), the cavity between the first aluminum plate (21) and the second aluminum plate (22) is divided into a plurality of flow channels (6) through the connecting points (5), and condensing agents are filled in the flow channels (6);

the fin (2) further comprises a fin body (23) and a bending part (8) positioned at the upper end of the fin body (23), the lower end of the fin body (23) is provided with a flanging part (9) which is bent upwards, the flanging part (9) and the lower part of the fin body (23) are arranged face to face, a gap (7) is arranged between the fin bodies (23) of the adjacent fins (2), the flanging part (9) of the fin (2) and the lower part of the fin body (23) are both embedded into the mounting groove (3), and the bending part (8) of the fin (2) is close to the fin body (23) of the adjacent fin (2); the base plate (1) further comprises an aluminum plate body (10) and a copper block (12) embedded in the groove (101) of the aluminum plate body (10).

2. The heat exchange heat dissipation system according to claim 1, wherein: the mounting groove (3) is formed in the aluminum plate body (10) and communicated with the groove (101), and the straight insertion portion of the fin (2) is embedded into the mounting groove (3) in the aluminum plate body (10) and is in contact with the copper block (12).

3. The heat exchange heat dissipation system according to claim 1, wherein: the aluminum plate body (10) is provided with a plurality of parallel mounting grooves (3).

4. The heat exchange heat dissipation system according to claim 1, wherein: the tail end of the flanging part (9) is provided with a downward secondary flanging part (91), the secondary flanging part (91) is positioned between the flanging part (9) and the fin body (23), and the secondary flanging part (91) is positioned in the mounting groove (3).

5. The heat exchange heat dissipation system according to claim 1, wherein: the flanging part (9) and the lower part of the fin body (23) are connected with the mounting groove (3) through gluing, riveting or welding.

6. The heat exchange heat dissipation system according to claim 1, wherein: the thickness of the fin (2) is 0.8-1.2 mm.