CN214095699U

CN214095699U - Radiator fin, radiator core and radiator

Info

Publication number: CN214095699U
Application number: CN202023257713.6U
Authority: CN
Inventors: 杜亚兵
Original assignee: Wuhan Yunxiu Thermal Technology Co ltd
Current assignee: Wuhan Yunxiu Thermal Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-31
Anticipated expiration: 2030-12-29

Abstract

The utility model belongs to the technical field of radiators, and discloses a radiator fin. The fin comprises: a fin base and special-shaped fins formed on the fin base; The concave-convex unit includes a connected upper convex part and a lower concave part, and both the upper convex part and the lower concave part are components with a certain included angle. The utility model sets the fins as relatively smooth concavo-convex parts with a certain angle, so that the internal channels of the fins become concave-convex planes with smooth surfaces. When the medium passes through the internal channels of the fins, the boundary layer is continuously cut off, preventing the The expansion of the medium boundary layer changes the flow direction of the medium to speed up the flow of the medium, thereby improving the convective heat transfer coefficient of the fins; in addition, in an environment with poor radiator operating conditions, the debris carried in the medium is easier to pass through the fins The internal channels of the fins will not cause clogging, thus ensuring the stable operation of the radiator.

Description

Radiator fin, radiator core and radiator

Technical Field

The utility model belongs to the technical field of the radiator, concretely relates to radiator fin, radiator core and radiator.

Background

A heat exchanger (also called heat exchanger) is a device that transfers part of the heat of a hot fluid to a cold fluid. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied. In order to improve the heat exchange performance, fins are generally arranged between flat tubes of the heat exchanger.

The existing heat exchanger adopts a shutter form for achieving the purpose of strengthening heat exchange, and the windowing structure of the shutter fin can interrupt the air flow boundary layer periodically and guide the air flow, thereby realizing the strengthened heat exchange of the air. The widespread use of such heat exchangers employing louvered fins still faces many problems and challenges, of which the air side ash accumulation is one of the most important. Under the condition of poor working environment, the existing louver fins are easy to have the phenomenon of dust accumulation and blockage, and influence heat dissipation, so that the water temperature of an engine is overhigh and the engine breaks down. And discover when clearing up it, because inside a lot of pollutants entered into the core, can't effective clearance to can only change new heat exchanger, the cost is very high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat exchanger fin and heat exchanger for the phenomenon that the laying dust blockked up appears easily in the fin of shutter formula among the solution prior art and influences the radiating technical problem of heat exchanger.

In order to achieve the above object, the utility model adopts the following technical scheme:

a heat sink fin, the fin comprising: the fin comprises a fin base body and a special-shaped fin formed on the fin base body, wherein the special-shaped fin comprises concave-convex units which are connected in sequence, each concave-convex unit comprises an upper convex part and a lower concave part which are connected, and the upper convex parts and the lower concave parts are parts with certain included angles.

Furthermore, the included angle of the upper convex part is 134 DEG and 162 DEG, and the included angle of the lower concave part is 134 DEG and 162 deg.

Furthermore, the included angle of the upper convex part is 150 degrees, and the included angle of the lower concave part is 150 degrees.

Further, the height between the top end of the upper convex part and the bottom end of the lower concave part is 1.6-4.2 mm.

Further, the height between the top end of the upper convex part and the bottom end of the lower concave part is 3 mm.

The utility model also provides a radiator core, the core includes a plurality of range upon range of settings as above-mentioned fin, adjacent two form the medium runner between the fin.

The utility model also provides a radiator, the radiator includes as above-mentioned radiator core.

The utility model has the advantages that: the fins are arranged to be relatively smooth and have concave-convex parts with certain included angles, so that internal channels of the fins are concave-convex planes and smooth in surface, when a medium passes through the internal channels of the fins, the boundary layers are continuously cut off, the expansion of the boundary layers of the medium is prevented, the flowing direction of the medium is changed, the flowing speed of the medium is accelerated, and the convection heat exchange coefficient of the fins is improved; in addition, in the relatively poor environment of radiator operating mode, debris that carry in the medium are easier to pass through the inner passage of fin, and can not cause the jam to the steady operation of radiator has been guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of a conventional louver fin in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a heat sink fin in an embodiment of the present invention.

Wherein, 1-a fin matrix; 2-special-shaped fins; 3-upper convex part; 4-lower recess.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Examples

Referring to fig. 1 and 2, the conventional fin is in the form of a louver, and the louver structure of the louver fin can periodically interrupt an air flow boundary layer and guide an air flow, thereby realizing air-enhanced heat exchange. The widespread use of such heat exchangers employing louvered fins still faces many problems and challenges, of which the air side ash accumulation is one of the most important. Under the condition of poor working environment, the existing louver fins are easy to have the phenomenon of dust accumulation and blockage, and influence heat dissipation, so that the water temperature of an engine is overhigh and the engine breaks down. And discover when clearing up it, because inside a lot of pollutants entered into the core, can't effectively clear up. Therefore, in order to solve the problems of the prior art, embodiments of the present invention provide a heat sink fin having a special-shaped structure, which comprises,

a heat sink fin, the fin comprising: the fin comprises a fin base body 1 and a special-shaped fin 2 formed on the fin base body, wherein the special-shaped fin 2 comprises concave-convex units which are sequentially connected, each concave-convex unit comprises an upper convex part 3 and a lower concave part 4 which are connected, and the upper convex parts 3 and the lower concave parts 4 are parts with certain included angles; preferably, the included angle of the upper convex portion 3 is 134 DEG and 162 DEG, and the included angle of the lower concave portion 4 is 134 DEG and 162 DEG; more preferably, the included angle of the upper convex part 3 is 150 degrees, and the included angle of the lower concave part 4 is 150 degrees; of course, it can be understood that the value ranges of the included angle of the upper convex portion 3 and the included angle of the lower concave portion 4 are not limited to the above value ranges, and may be specifically designed according to the working condition applicable to the radiator, and are not limited. Preferably, the height between the top end of the upper convex part 3 and the bottom end of the lower concave part 4 is 1.6-4.2 mm; more preferably, the height between the top end of the upper convex part 3 and the bottom end of the lower concave part 4 is 3 mm; of course, it can be understood that the range of the height between the top end of the upper convex portion 3 and the bottom end of the lower concave portion 4 is not limited to the above range, and may be specifically designed according to the working condition applicable to the radiator, and is not limited.

In the embodiment of the present invention, it should be explained that the medium channel may be a gas medium channel, and may also be a liquid medium channel, wherein, the medium channel port is provided with an air inlet side or an water inlet side, for example, when the medium is cooling air, under the pushing of an external fan, when passing through the gas channel, the air flow is under the effect of the concave-convex plane, because the boundary layer is continuously cut off, the development of the boundary layer is prevented, thereby improving the heat convection coefficient of the fin, and further improving the working efficiency of the heat sink.

In the embodiment of the present invention, it should be noted that the core is suitable for various types of radiators, such as a tubular radiator, a plate radiator, and the like, and the core is not particularly limited, and may be installed in various types of radiators according to needs.

The utility model discloses beneficial effect does: the fins are arranged to be relatively smooth and have concave-convex parts with certain included angles, so that internal channels of the fins are concave-convex planes and smooth in surface, when a medium passes through the internal channels of the fins, the boundary layers are continuously cut off, the expansion of the boundary layers of the medium is prevented, the flowing direction of the medium is changed, the flowing speed of the medium is accelerated, and the heat convection coefficient of the fins is improved; in addition, in the relatively poor environment of radiator operating mode, debris that carry in the medium are easier to pass through the inner passage of fin, and can not cause the jam to the steady operation of radiator has been guaranteed.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. A heat sink fin, comprising: the fin comprises a fin base body and a special-shaped fin formed on the fin base body, wherein the special-shaped fin comprises concave-convex units which are connected in sequence, each concave-convex unit comprises an upper convex part and a lower concave part which are connected, and the upper convex parts and the lower concave parts are parts with certain included angles.

2. The heat sink fin as recited in claim 1, wherein the included angle of the upper convex portion is 134 degrees and 162 degrees, and the included angle of the lower concave portion is 134 degrees and 162 degrees.

3. The heat sink fin as recited in claim 2, wherein the included angle of the upper convex portion is 150 degrees, and the included angle of the lower concave portion is 150 degrees.

4. The heat sink fin according to claim 1, wherein a height between a top end of the upper convex portion and a bottom end of the lower concave portion is 1.6-4.2 mm.

5. The heat sink fin according to claim 4, wherein a height between a top end of the upper convex portion and a bottom end of the lower concave portion is 3 mm.

6. A heat sink core comprising a plurality of fins as recited in claim 1 arranged in a stacked arrangement with a media flow path formed between adjacent ones of said fins.

7. A heat sink, characterized in that it comprises a heat sink core according to claim 6.