阅读说明：本技术 开窗结构翅片、换热器及空调器 (Window structure fin, heat exchanger and air conditioner ) 是由 张植荣 周逢杭 刘红艳 谢斌斌 明仁亮 于 2021-07-26 设计创作，主要内容包括：本发明提供了一种开窗结构翅片、换热器及空调器,涉及翅片换热器技术领域,旨在提供一种新的开窗结构翅片,以利于减小开窗结构带来的风阻。该开窗结构翅片包括翅片本体和开窗结构,其中,开窗结构设置于翅片本体上且开窗结构凸出翅片本体的板面,开窗结构的延伸方向与气流吹过翅片本体的方向相一致或者开窗结构的延伸方向与气流吹过翅片本体的方向存在锐角夹角。本发明用于提供翅片换热量情况下减小风阻。(The invention provides a window structure fin, a heat exchanger and an air conditioner, relates to the technical field of fin heat exchangers, and aims to provide a novel window structure fin so as to be beneficial to reducing wind resistance brought by a window structure. The window structure fin comprises a fin body and a window structure, wherein the window structure is arranged on the fin body and protrudes out of the surface of the fin body, the extending direction of the window structure is consistent with the direction of the air flow blowing through the fin body, or the extending direction of the window structure and the direction of the air flow blowing through the fin body form an acute included angle. The invention is used for reducing wind resistance under the condition of providing the heat exchange quantity of the fins.)

1. A window structure fin is characterized by comprising a fin body (1) and a window structure (2), wherein,

the window structure (2) is arranged on the fin body (1) and the window structure (2) protrudes out of the surface of the fin body (1), the window structure (2) extends from the air inlet side of the fin body (1) to the air outlet side of the fin body (1), and air flowing into the fin body (1) can blow through the fin body (1) along the window structure (2).

2. The fenestration fin of claim 1, characterized in that the fenestration (2) is a line-type structure.

3. The fenestration fin of claim 1, wherein the fenestration (2) is a continuous one-piece structure; or the windowing structure (2) is of more than two sections, and a gap exists between two adjacent sections of the windowing structure (2).

4. The fenestration fin of claim 1, wherein the fenestration (2) is curved or linear.

5. The fenestration fin of claim 4, characterized in that the fenestration (2) is wave-shaped.

6. The fenestration fin according to any of claims 1-5, characterized in that the fenestration (2) is provided with an opening portion (23), the fin body (1) is provided with communication holes, and the opening portion (23) is communicated with the corresponding communication holes.

7. The window structure fin according to claim 6, wherein the window structure (2) comprises a first side surface (21) and a second side surface (22) opposite to the first side surface (21), the first side surface (21) extends from an air inlet side of the fin body (1) to an air outlet side of the fin body (1), the first side surface (21) or the second side surface (22) is provided with the opening portion (23), and the opening portion (23) extends along a length direction of the window structure (2).

8. The fenestration fin of any of claims 1 to 5, characterized in that a plurality of the fenestrations (2) are evenly spaced on the fin body (1) in a direction perpendicular to the airflow from the air inlet side to the air outlet side of the fin body (1).

9. The windowing structure fin according to any of claims 1 to 5, characterised in that said fin body (1) is provided with insertion holes (11) cooperating with heat exchanger heat transfer tubes (3), said windowing structure (2) being present between two adjacent insertion holes (11) in a direction perpendicular to the air flow from the air inlet side to the air outlet side of said fin body (1).

10. A heat exchanger characterized by comprising a heat transfer tube (3) and fins, wherein part or all of the fins are the fenestrated fins described in any one of claims 1 to 9.

11. The heat exchanger according to claim 10, wherein the heat exchanger includes a refrigerant inlet and a refrigerant outlet, and wherein a spacing between layers of the heat transfer tubes (3) adjacent to the refrigerant inlet side is larger than a spacing between layers of the heat transfer tubes (3) adjacent to the refrigerant outlet side.

12. An air conditioner characterized by comprising the heat exchanger according to any one of claims 10 to 11.

Technical Field

The invention relates to the technical field of fin heat exchangers, in particular to a fin with a windowing structure, a heat exchanger comprising the fin and an air conditioner.

Background

Heat exchangers are common components used in refrigeration systems and air conditioning systems, and are classified into condensers and evaporators, etc., according to their functions. To improve the heat exchange performance of the heat exchanger, the heat exchanger is usually provided with fins.

In the existing heat exchanger fin structure, flat sheets, windowing sheets, corrugated sheets and the like are classified according to the form of fins. The existing window opening sheet is generally in a window opening structure in a shutter mode, and although the frosting period of the window opening sheet is relatively short, the wind resistance of the window opening sheet in the shutter mode is large. Referring to fig. 1, a fin provided with a louver in the prior art is illustrated, and the louver is tilted to protrude out of the fin surface.

Disclosure of Invention

The invention aims to provide a window structure fin, a heat exchanger and an air conditioner, and aims to provide a novel window structure fin so as to be beneficial to reducing wind resistance brought by a window structure. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a window structure fin which comprises a fin body and a window structure, wherein the window structure is arranged on the fin body and protrudes out of the surface of the fin body, the window structure extends from the air inlet side of the fin body to the air outlet side of the fin body, and air flow flowing into the fin body can blow through the fin body along the window structure.

Further, the windowing structure is a line-type structure.

Further, the windowing structure is a continuous one-section structure; or the windowing structure is of more than two sections, and a gap exists between two adjacent sections of the windowing structure.

Further, the windowing structure is in a curve shape or a linear shape.

Further, the structure of windowing is wave shape.

Furthermore, an opening part is arranged on the windowing structure, communication holes are formed in the fin body, and the opening part is communicated with the corresponding communication holes.

Furthermore, the windowing structure comprises a first side surface and a second side surface opposite to the first side surface, the opening part is arranged on the first side surface or the second side surface, and the opening part extends along the length direction of the windowing structure.

Further, along the direction of perpendicular to air current from the air inlet side to the air outlet side of fin body, the structure of windowing is in even interval distribution on the fin body.

Furthermore, the fin body is provided with insertion holes matched with heat transfer tubes of the heat exchanger, and the windowing structure is arranged between every two adjacent insertion holes along the direction perpendicular to the air flow from the air inlet side to the air outlet side of the fin body.

The invention provides a heat exchanger which comprises a heat transfer pipe and fins, wherein part or all of the fins are the fins with the windowing structures.

Furthermore, the heat exchanger comprises a refrigerant inlet and a refrigerant outlet, and the distance between the middle layers of the heat transfer pipes close to the refrigerant inlet side is larger than the distance between the middle layers of the heat transfer pipes close to the refrigerant outlet side.

An air conditioner comprises the heat exchanger.

The invention aims to provide a novel fin with a windowing structure, wherein the windowing structure is arranged on a fin body, the extending direction of the windowing structure is along the direction of an air field of an air flow blowing through the fin body, and the novel fin with the windowing structure still has the advantages of windowing the fin (the heat exchange area is increased by windowing the fin, the air flow can pass through the fin through the windowing structure, the strength of the fin is improved, and the like) under the condition of reducing wind resistance.

The preferred technical scheme of the invention can at least produce the following technical effects:

the windowing structure is in a strip structure and is preferably wave-shaped, so that wind resistance can be reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a prior art fin provided with a louvered structure.

FIG. 2 is a schematic front view of a heat exchanger provided by an embodiment of the present invention;

FIG. 3 is a schematic right view of a heat exchanger provided by an embodiment of the present invention;

FIG. 4 is a schematic view of the air flow provided by an embodiment of the present invention blowing against the fin body;

FIG. 5 is a schematic left side view of a heat exchanger provided by an embodiment of the present invention;

FIG. 6 is a schematic top view of a heat exchanger provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a windowing structure according to an embodiment of the invention;

fig. 8 is a simplified schematic diagram of an air flow blowing toward a fenestration provided by an embodiment of the invention.

FIG. 1-Fin body; 2-a windowing structure; 21-a first side; 22-a second side; 23-an open site; 3-heat transfer pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The invention provides a window structure fin which comprises a fin body 1 and a window structure 2, wherein the window structure 2 is arranged on the fin body 1, the window structure 2 extends from the air inlet side of the fin body 1 to the air outlet side of the fin body 1, and the air flow flowing into the fin body 1 can blow through the fin body 1 along the window structure 2. The heat exchange area can be increased by opening the fins, but most of the existing window-opening fins are louver fins, the louver fins are raised and protrude out of the fin surfaces, and the problem of large wind resistance is generally existed in that the louver fins are vertically arranged, the vertical extending direction of the louver fins is vertical to the direction of air flow blowing through the fins, and the air flow blows transversely to block wind; the invention aims to provide a novel fin with a windowing structure, wherein the extending direction of the windowing structure 2 is along the direction of an airflow blowing through a wind field of a fin body 1, so that the 'transverse wind shielding' condition is avoided, and the advantage of fin windowing (the heat exchange area is increased by fin windowing, the airflow can pass through the fin through the windowing structure, the strength of the fin is improved and the like) is still achieved under the condition of reducing wind resistance.

For example, the specific orientation of the fenestration 2 is as follows: the curve consistent with the trend of the windowing structure 2 is a reference curve, a tangent line of any point on the reference curve is parallel to the direction of the airflow blown into the fin body 1 horizontally or has an acute included angle with the direction of the airflow blown into the fin body 1 horizontally, so that the situation that the louver sheet transversely blocks wind as shown in fig. 7 is avoided, the extension of each section of the windowing structure 2 is convenient to be along the direction of the airflow blown through the fin, and the wind resistance is reduced. In addition, it should be noted that, the height of the window structure 2 protruding out of the fin body 1 needs to be set reasonably, the protruding height of the window structure 2 is smaller, and the flow guiding effect is relatively poor; the protruding height of the windowing structure 2 is larger, and the wind resistance is larger.

As an alternative embodiment, the shape of the windowing structure 2 may specifically be as follows: the window structure 2 is a line-shaped structure, and referring to fig. 3, the window structure 2 is preferably a relatively thin line-shaped structure, and the sizes and shapes of the cross-sectional outer contours of the window structure 2 are consistent, but of course, the sizes and shapes of the cross-sectional outer contours of the window structure 2 may not be consistent. The fenestration 2 may be linear or curvilinear. For example, when the window structure 2 is curved, the window structure 2 is preferably wavy, and the curvature of the window structure 2 can be set reasonably according to actual requirements. Preferably, the windowing structure 2 is a continuous one-segment structure, see fig. 3, which schematically shows the windowing structure 2 as a continuous one-segment line-type structure; of course, the windowing structure 2 may be two or more segments, and a gap exists between two adjacent segments of the windowing structure 2.

As an alternative embodiment, the specific structure of the windowing structure 2 may be as follows: referring to fig. 7, the window structure 2 protrudes out of the plate surface of the fin body 1, an opening portion 23 is arranged on the window structure 2, and the fin body 1 is provided with communicating holes, and the opening portion is communicated with the corresponding communicating holes. At least, the plate surface of one side of the fin body 1 is provided with a windowing structure 2, the windowing structure 2 protrudes out of the fin body 1 and is of a strip structure, and air flow can pass through the fin through the opening part 23 and the communicating holes, so that heat exchange of the fin is facilitated. In addition, the window opening structure 2 may be as follows: the windowing structure 2 can be a solid structure or a hollow structure, the fin body 1 is provided with communicating holes, the communicating holes are arranged on the windward side or the leeward side of the windowing structure 2 (each windowing structure 2 corresponds to one communicating hole close to the windowing structure 2), and the extending direction of the communicating holes is parallel to the windowing structure 2.

As an alternative embodiment, the windowing structure 2 comprises a first side surface 21 and a second side surface 22 arranged opposite to the first side surface 21, the first side surface 21 extends from the air inlet side of the fin body 1 to the air outlet side of the fin body 1, referring to fig. 7, the first side surface 21 and the second side surface 22 of the windowing structure 2 are illustrated, an opening portion 23 is arranged on the first side surface 21 or the second side surface 22, referring to fig. 7, the opening portion 23 is arranged on the first side surface 21, and the opening portion 23 extends along the length direction of the first side surface 21.

As an alternative embodiment, the windowing structures 2 are evenly spaced on the fin body 1 in a direction perpendicular to the airflow from the air inlet side to the air outlet side of the fin body 1. Of course, the windowing structures 2 are preferably uniformly distributed on the fin body 1 at intervals, so as to form a uniform flow field on the fin, and the distribution of the windowing structures 2 on the fin body 1 is not limited to be uniform.

In an alternative embodiment, the fin body 1 is provided with insertion holes 11 matched with the heat exchanger heat transfer tubes 3, and a windowing structure 2 is arranged between two adjacent insertion holes 11 along a direction perpendicular to the air flow from the air inlet side to the air outlet side of the fin body 1. Referring to fig. 3 and 8, a heat transfer pipe 3 and a windowing structure 2 are illustrated, a row of insertion holes 11 is arranged in a direction perpendicular to an airflow from an air inlet side to an air outlet side of a fin body 1, a plurality of rows of insertion holes 11 are arranged in a direction along the airflow from the air inlet side to the air outlet side of the fin body 1, the windowing structure 2 is wavy, and in the process of extending the windowing structure 2, each section of the windowing structure 2 is respectively located between two adjacent insertion holes 11 of each row of insertion holes 11. When the air current blows to heat-transfer pipe 3, the air current can flow to the both sides of heat exchange tube 3 and when flowing to windowing structure 2, windowing structure 2 can lead the heat exchange tube 3 that the air current blows to the place ahead, does benefit to the heat transfer.

The fin body 1 is of a flat structure, namely, the windowing structure 2 is preferably additionally arranged on the flat fin, so that the windowing structure fin provided by the invention has the advantages of increasing the heat exchange area and the air orbiting time on the fin compared with the flat fin, and having a good heat exchange effect.

The invention provides a heat exchanger which comprises a heat transfer pipe 3 and fins, wherein part or all of the fins are fins with a windowing structure. Preferably, the fins of the heat exchanger are all fins with a window structure, and referring to fig. 2-6, the heat exchanger is schematically shown, the fins with the window structure are uniformly distributed at intervals along the horizontal direction, and the heat transfer pipe 3 passes through the insertion hole 11 on the fin with the window structure.

In an alternative embodiment, the heat exchanger includes a refrigerant inlet and a refrigerant outlet, and the spacing between the layers in the heat transfer tubes 3 near the refrigerant inlet side is larger than the spacing between the layers in the heat transfer tubes 3 near the refrigerant outlet side. The method comprises the following specific steps: for example, when the refrigerant inlet is located at the upper end of the heat exchanger and the refrigerant outlet is located at the lower end of the heat exchanger, the vertical distance between the middle layers of each horizontal layer of heat transfer tubes 3 at the upper end of the heat exchanger is greater than the vertical distance between the middle layers of each horizontal layer of heat transfer tubes 3 at the lower end of the heat exchanger along the height direction of the heat exchanger. Because the fin of refrigerant inlet side is frosted more easily than the fin of refrigerant outlet side, become the interval setting through above-mentioned heat-transfer pipe 3, do benefit to a certain extent and improve and be close to refrigerant inlet side anti-frosting ability.

The invention provides an air conditioner, which comprises a heat exchanger provided by the invention, wherein the heat exchanger comprises a heat transfer pipe 3 and fins, wherein part or all of the fins are fins with a windowing structure, preferably, the fins on the heat exchanger are fins with the windowing structure, the fins with the windowing structure comprise a fin body 1 and a windowing structure 2, the windowing structure 2 is arranged on the fin body 1, and the extending direction of the windowing structure 2 is along the direction of air flow blowing through the fin body 1.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.