CN113531664A

CN113531664A - Fin and condenser

Info

Publication number: CN113531664A
Application number: CN202110709990.6A
Authority: CN
Inventors: 马超丰; 魏晓永; 刘爱学
Original assignee: Bergstrom Changzhou Heat Exchanger Co ltd
Current assignee: Bergstrom Changzhou Heat Exchanger Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-10-22

Abstract

The utility model provides a fin and condenser belongs to heat exchanger technical field. This fin includes: the rectangular fin plate is provided with a windward side edge, a leeward side edge and two connecting side edges, wherein the windward side edge and the leeward side edge are opposite two side edges, the two connecting side edges are opposite two side edges, and grooves are formed in the two connecting side edges; the two first connecting plates are positioned on two sides of the windward side edge, the side edge, close to the connecting side edge, of each first connecting plate is coplanar with the connecting side edge, and at least partial area of each first connecting plate extends towards the direction far away from the rectangular fin plate; and the second connecting plate has the same structure as the first connecting plate, and is positioned on the leeward side. This openly can avoid because of fin assembly error, and lead to the condenser to be detained and corrode the problem of flat pipe, improve the reliability.

Description

Fin and condenser

Technical Field

The disclosure relates to the technical field of heat exchangers, in particular to a fin and a condenser.

Background

The condenser is a heat exchange device for the air conditioner, and is used for converting a gaseous refrigerant in the air conditioner into a liquid state and quickly dissipating the released heat into the air to realize refrigeration in the refrigeration process of the air conditioner; in the process of heating by the air conditioner, the condenser needs to absorb ambient heat, so that the temperature of the condenser is reduced, and then moisture in the air is condensed into condensed water on the condenser.

In the related art, a condenser includes: the heat exchanger comprises fins, two collecting pipes and a plurality of flat pipes, wherein the two collecting pipes are arranged at intervals in parallel, the flat pipes are arranged at intervals in parallel, two ends of each flat pipe are respectively connected with the side walls of the two collecting pipes and communicated with the collecting pipes, the fins connected with the flat pipes are arranged between the two flat pipes, and the heat exchange area between the air and the flat pipes is increased through the fins. In the heating process, in order to avoid the condensed water from being accumulated on the flat pipe to cause corrosion, grooves are usually formed in the side edges, connected with the flat pipe, of the fins, the fins located on two sides of the flat pipe are installed on the flat pipe, the flat pipe is accommodated in the grooves of the two fins, and the parts, except the grooves, of the two fins are connected together, so that the condensed water can flow through the fins in sequence to drain the condensed water.

However, in the actual assembly process, because of assembly error, the fin assembly back often appears being located the not coplane problem of fin of flat tub of both sides, and the part beyond the recess appears misplacing on two fins promptly, and then leads to the fin to link together not well to hinder the drainage, make the comdenstion water gathering cause the corruption on flat tub.

Disclosure of Invention

The embodiment of the disclosure provides a fin and a condenser, which can avoid the problem that the condenser is retained to corrode a flat tube due to the assembly error of the fin, and improve the reliability. The technical scheme is as follows:

the disclosed embodiment provides a fin, the fin includes: the rectangular fin plate is provided with a windward side edge, a leeward side edge and two connecting side edges, wherein the windward side edge and the leeward side edge are opposite two side edges, the two connecting side edges are opposite two side edges, and grooves are formed in the two connecting side edges; the two first connecting plates are positioned on two sides of the windward side edge, the side edge, close to the connecting side edge, of each first connecting plate is coplanar with the connecting side edge, and at least partial area of each first connecting plate extends towards the direction far away from the rectangular fin plate; and the second connecting plate has the same structure as the first connecting plate, and is positioned on the leeward side.

In an implementation manner of the embodiment of the present disclosure, the first connecting plate is an arc-shaped plate, a side where a straight side of the arc-shaped plate is located is connected to the windward side, and a side where a curved side of the arc-shaped plate, which is close to the connecting side, is located is coplanar with the connecting side.

In another implementation manner of the embodiment of the present disclosure, the first connecting plate is a flat plate, one side of the flat plate is connected to the windward side, and the flat plate and the rectangular fin plate are arranged at an included angle.

In another implementation manner of the embodiment of the present disclosure, the fin further includes a first flanging, the first flanging is connected to the bottom of the groove, the first flanging is parallel to the connecting side, and the first flanging is vertically connected to the rectangular fin plate.

In another implementation manner of the embodiment of the present disclosure, the connecting side is provided with a second turned-over edge, the second turned-over edge is located on one side of the connecting side close to the windward side, the second turned-over edge is vertically connected to the rectangular fin plate, and a side surface of the second turned-over edge close to the connecting side is coplanar with the connecting side.

In another implementation of the embodiment of the disclosure, in a length direction of the windward side, a width of the first connecting plate is not greater than a groove depth of the groove.

In another implementation manner of the embodiment of the present disclosure, the rectangular fin plate has a heat dissipation opening, a plurality of heat dissipation blades distributed in parallel at intervals are disposed in the heat dissipation opening, and the heat dissipation blades and the rectangular fin plate are arranged at an included angle.

In another implementation manner of the embodiment of the disclosure, in a length direction of the connecting side, a length of the heat dissipation opening is not greater than a length of the groove.

The disclosed embodiments provide a condenser comprising fins as described hereinbefore.

In another implementation of the disclosed embodiment, the condenser further includes: the device comprises two parallel collecting pipes arranged at intervals and a plurality of parallel flat pipes arranged at intervals; the flat pipes are all positioned between the two collecting pipes, and two ends of each flat pipe are respectively communicated with the two collecting pipes; the flat tube is positioned in the groove and connected with the groove bottom of the groove, the connecting side edges of the fins positioned at two sides of the flat tube are butted, and the first connecting plates of the fins positioned at two sides of the flat tube are butted; a plurality of fins arranged at intervals are arranged between two adjacent flat tubes, two windward sides of the two adjacent fins are connected through the first connecting plate, and two leeward sides of the two adjacent fins are connected through the second connecting plate.

The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:

the fin that this disclosed embodiment provided includes rectangle fin board, first connecting plate and second connecting plate, wherein, is equipped with the recess on two connection sides of rectangle fin board, and this recess is used for holding flat pipe, and when installing the fin to flat pipe like this, the rectangle fin board that is located flat pipe both sides just can be in the same place flat pipe package clamp through the recess. After the flat pipes are tightly pressed through the fit of the grooves of the rectangular fin plates, the parts, outside the grooves, on the connecting sides of the rectangular fin plates on the two sides of the flat pipes are butted together, so that the rectangular fin plates on the two sides of the flat pipes can form a continuous integral structure, and condensed water can be discharged along the sequentially connected rectangular fin plates.

Meanwhile, the positions of two sides of the windward side of the rectangular fin plate are also provided with first connecting plates, and the side edges, close to the connecting side edges, of the first connecting plates are coplanar with the connecting side edges, so that the side edges of the two first connecting plates on two sides of the flat tube can be butted together after the rectangular fin plates on two sides of the flat tube are butted. Because at least partial region of the first connecting plate extends towards the direction far away from the rectangular fin plate, even after the rectangular fin plates are butted, assembly errors occur between the two butted rectangular fin plates, a certain included angle exists between the two butted rectangular fin plates, so that the connecting sides of the rectangular fin plates are not butted and contacted, and partial regions of the first connecting plate deviate from the plane where the rectangular fin plates are located, so that partial regions of the two butted first connecting plates are contacted, and condensate water can flow from one rectangular fin plate to the other rectangular fin plate through the two butted first connecting plates. Therefore, the problem that the condenser is retained to corrode the flat tube due to fin assembly errors can be avoided, and the reliability is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic view illustrating an assembly of a fin and a flat tube in a condenser according to the related art;

fig. 2 is a schematic view illustrating an assembly of fins and flat tubes in another condenser provided in the related art;

FIG. 3 is a schematic structural diagram of a fin provided by an embodiment of the present disclosure;

fig. 4 is an assembly schematic view of a fin and a flat tube provided in the embodiment of the present disclosure;

fig. 5 is a schematic view illustrating an assembly of another fin and flat tube according to an embodiment of the present disclosure;

FIG. 6 is an assembled schematic view of a fin provided by an embodiment of the present disclosure;

FIG. 7 is a side view of one of the fins provided in FIG. 6;

FIG. 8 is an assembled schematic view of a fin provided by an embodiment of the present disclosure;

FIG. 9 is an assembled schematic view of a fin provided by an embodiment of the present disclosure;

fig. 10 is a schematic view illustrating an assembly of another fin and a flat tube according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a condenser according to an embodiment of the present disclosure.

The various symbols in the figure are illustrated as follows:

1-rectangular fin plate, 11-windward side, 110-groove, 12-leeward side, 13-connecting side, 14-heat dissipation port and 15-heat dissipation blade;

21-a first connecting plate, 22-a second connecting plate;

31-a first flanging and 32-a second flanging;

41-collecting pipe and 42-flat pipe;

a-a fin.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," "third," and similar terms in the description and claims of the present disclosure are not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "top", "bottom", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

The related art condensers generally include: fin, two pressure manifold and a plurality of flat pipe. Wherein, two parallel interval arrangements of pressure manifold, the parallel interval arrangement of a plurality of flat pipes, and the both ends of flat pipe are connected with the lateral wall of two pressure manifolds respectively and communicate with pressure manifold, be equipped with the fin of being connected with flat pipe between two flat pipes, through the fin in order to increase the heat transfer area between air and the flat pipe.

Fig. 1 is a schematic view illustrating an assembly of a fin and a flat tube in a condenser according to the related art. As shown in fig. 1, the side of the fin a connected to the flat tube 42 is provided with a groove 110, so that after the fin a on two sides of the flat tube 42 is mounted on the flat tube 42, the grooves 110 of the two fin a accommodate the flat tube 42 therein, and the parts of the two fin a except the grooves 110 are connected together, so that condensed water can flow through the fins a in sequence, and the condensed water is drained away, thereby preventing the condensed water from being accumulated on the flat tube 42 to cause corrosion.

Fig. 2 is a schematic view illustrating an assembly of fins and flat tubes in another condenser provided in the related art. As shown in fig. 2, in the actual assembly process, due to assembly errors, the problem that the fins a located on the two sides of the flat tube 42 are not coplanar often occurs, that is, the parts of the two fins a other than the grooves 110 are dislocated, so that the fins a cannot be well connected together, and therefore drainage is hindered, and condensed water is collected on the flat tube 42 to cause corrosion.

To this end, the disclosed embodiments provide a fin. Fig. 3 is a schematic structural diagram of a fin provided in an embodiment of the present disclosure. As shown in fig. 3, the fin includes: a rectangular fin plate 1, a second connection plate 22 and two first connection plates 21.

As shown in fig. 3, the rectangular fin plate 1 has a windward side 11, a leeward side 12 and two connecting sides 13, the windward side 11 and the leeward side 12 are opposite sides, the two connecting sides 13 are opposite sides, and the two connecting sides 13 are both provided with a groove 110.

As shown in fig. 3, two first connecting plates 21 are located on two sides of the windward side 11, a side of the first connecting plate 21 close to the connecting side 13 is coplanar with the connecting side 13, and at least a partial area of the first connecting plate 21 extends in a direction away from the rectangular fin plate 1.

As shown in fig. 3, the second connecting plate 22 has the same structure as the first connecting plate 21, and the second connecting plate 22 is located on the leeward side 12.

The fin provided by the embodiment of the present disclosure includes a rectangular fin plate 1, a first connecting plate 21 and a second connecting plate 22. Fig. 4 is an assembly schematic view of a fin and a flat tube provided in the embodiment of the present disclosure. As shown in fig. 4, the two connecting sides 13 of the rectangular fin plates 1 are provided with grooves 110, and the grooves 110 are used for accommodating the flat tubes 42, so that when the fin is mounted on the flat tubes 42, the rectangular fin plates 1 on both sides of the flat tubes 42 can clamp the flat tubes 42 together through the grooves 110. After the flat tubes 42 are tightly pressed by the grooves 110 of the rectangular fin plates 1, the parts of the connecting side edges 13 of the rectangular fin plates 1 on the two sides of the flat tubes 42, which are positioned outside the grooves 110, are butted together, so that the rectangular fin plates 1 on the two sides of the flat tubes 42 can form a continuous integral structure, and condensed water can be discharged along the sequentially connected rectangular fin plates 1 (see the flow direction indicated by the arrow in fig. 4).

Meanwhile, as shown in fig. 4, first connecting plates 21 are further disposed at two sides of the windward side 11 of the rectangular fin plate 1, and since the side of the first connecting plate 21 close to the connecting side 13 is coplanar with the connecting side 13, after the rectangular fin plates 1 at two sides of the flat tube 42 are butted, the sides of the two first connecting plates 21 at two sides of the flat tube 42 can also be butted together. Fig. 5 is an assembly schematic view of another fin and flat tube provided in the embodiment of the present disclosure. As shown in fig. 5, since at least a partial region of the first connecting plate 21 extends in a direction away from the rectangular fin plate 1, even if the rectangular fin plates 1 are butted, an assembly error occurs between the two butted rectangular fin plates 1, so that an included angle exists between the two rectangular fin plates 1, and the connecting sides 13 of the rectangular fin plates 1 are no longer in butt contact, while a partial region of the first connecting plate 21 is deviated from the plane of the rectangular fin plate 1, so that a partial region is still in contact between the sides of the two butted first connecting plates 21, so that condensed water can be drained from one rectangular fin plate 1 to the other rectangular fin plate 1 through the two butted first connecting plates 21 (see the flow direction indicated by the arrow in fig. 5). Therefore, the problem that the condenser is retained to corrode the flat tube 42 due to fin assembly errors can be avoided, and reliability is improved.

In the embodiment of the present disclosure, in the length direction of the windward side 11, the width of the first connecting plate 21 is not greater than one half of the length H of the windward side 11; the width of the second web 22 is no greater than the length h of the leeward side 12. Wherein, the width of the first connecting plate 21 and the width of the second connecting plate 22 can be adjusted according to the strength design requirement of the fin.

Illustratively, as shown in fig. 3, the width of the first connecting plate 21 in the length direction of the windward side 11 is not greater than the groove depth of the groove 110.

Because the grooves 110 are used for accommodating the flat tubes 42, in the embodiment of the present disclosure, after the rectangular fin plates 1 on both sides of the flat tubes 42 are butted, the grooves 110 of the two rectangular fin plates 1 are just butted against the side surfaces of the flat tubes 42, that is, the total groove depth after the two grooves 110 are combined is equal to the thickness of the flat tubes 42. By setting the width of the first connecting plate 21 to be smaller than the groove depth of the groove 110, the first connecting plate 21 does not block the heat exchanging space between the two flat tubes 42 for air circulation. That is, the first connecting plate 21 and the flat tubes 42 are located at the same position, so that the wind resistance is reduced to the maximum extent, and the heat exchange efficiency is improved.

Fig. 6 is an assembly schematic diagram of a fin provided by an embodiment of the present disclosure. As shown in fig. 6, the rectangular fin plates 1 in the plurality of fins are distributed in parallel at intervals, and since at least partial areas of the first connecting plate 21 and the second connecting plate 22 extend in a direction away from the rectangular fin plates 1, the two rectangular fin plates 1 distributed at intervals can be butted by the outwardly extending portions of the first connecting plate 21, and the outwardly extending portions of the second connecting plate 22 are butted so that the windward sides 11 of the two adjacent rectangular fin plates 1 are fixedly connected by the first connecting plate 21, and the leeward sides 12 of the two adjacent rectangular fin plates 1 are fixedly connected by the second connecting plate 22.

Fig. 7 is a side view of one of the fins provided in fig. 6. As shown in fig. 7, after two adjacent rectangular fin plates 1 are connected by a connecting plate, the fins can be combined and distributed in a wave shape.

Among two adjacent rectangular fin plates 1, the butt joint of the first connecting plate 21 and the butt joint of the second connecting plate 22 are fixed in a brazing welding mode.

In the embodiment of the present disclosure, the length of the connecting side 13 of the rectangular fin plate 1 may be determined by the width of the flat tube 42 of the fin to be assembled.

For example, if the width of the flat tube 42 is 20mm, the length of the connecting side 13 of the rectangular fin plate 1 needs to be greater than 20mm, for example, the length of the connecting side 13 is 25mm, so that after the groove 110 is formed, a part of the remaining area on the connecting side 13 can be butted with the connecting side 13 on the other side of the flat tube 42 to form a continuous fin structure.

In the embodiment of the present disclosure, the lengths of the windward side 11 and the leeward side 12 of the rectangular fin plate 1 may be determined by the distribution distance of the flat tubes 42.

Illustratively, as shown in fig. 3 and 4, the grooves 110 connecting the sides 13 extend to the leeward side 12, that is, in the rectangular fin plate 1, the length of the windward side 11 is greater than the length of the leeward side 12, and the length of the windward side 11 is greater than the length of the leeward side 12 by the depth of two grooves 110. Because the grooves 110 of the rectangular fin plates 1 on both sides of the flat tube 42 are closely attached to the flat tube 42, the length of the windward side 11 is greater than the length of the leeward side 12 by the thickness of the flat tube 42.

For example, if the distribution pitch of the flat tubes 42 is 10mm, the length of the leeward side 12 may be 10mm, and the length of the windward side 11 may be 15 mm.

Alternatively, as shown in fig. 3 and 4, the first connecting plate 21 is an arc-shaped plate, a straight side of the arc-shaped plate is connected with the windward side 11, and a curved side of the arc-shaped plate, which is close to the connecting side 13, is coplanar with the connecting side 13.

Because the side edge of the curved edge of the arc-shaped plate close to the connecting side edge 13 is coplanar with the connecting side edge 13, the side edges of the curved edges of the two arc-shaped plates at the two sides of the flat tube 42 can be butted together after the rectangular fin plates 1 at the two sides of the flat tube 42 are butted. Moreover, the arc plates are bent towards the direction far away from the rectangular fin plate 1, so that even after the rectangular fin plates 1 are butted, assembly errors occur between the two butted rectangular fin plates 1, partial areas of the arc plates deviate from the plane where the rectangular fin plates 1 are located, and partial areas of the arc plates are in contact with each other, so that the problem that the condenser is retained to corrode the flat tube 42 due to fin assembly errors can be avoided, and the reliability is improved.

Illustratively, as shown in fig. 3 and 6, the first connecting plate 21 is an arc plate, wherein the arc corresponding to the arc plate is a quarter arc, and after a side edge of a straight edge of the arc plate is connected with the windward side edge 11, a side edge of another straight edge of the arc plate is bent outward. After the two rectangular fin plates 1 which are distributed in parallel at intervals are connected, the two connected arc plates can be butted and combined to form a semicircular plate.

Fig. 8 is an assembly schematic diagram of a fin provided by an embodiment of the present disclosure. As shown in fig. 8, the first connecting plate 21 is a flat plate, one side of the flat plate is connected to the windward side 11, and the flat plate and the rectangular fin plate 1 form an included angle.

Because the side edges of the flat plates close to the connecting side edge 13 are coplanar with the connecting side edge 13, the side edges of the two flat plates at the two sides of the flat tube 42 can be butted together after the rectangular fin plates 1 at the two sides of the flat tube 42 are butted. Moreover, the flat plates are inclined towards the direction far away from the rectangular fin plate 1, so that even if the rectangular fin plates 1 are butted, assembly errors occur between the two butted rectangular fin plates 1, and partial areas of the flat plates deviate from the plane of the rectangular fin plate 1, partial areas of the flat plates are in contact with the side edges of the two butted flat plates, so that the problem that the flat tubes 42 are corroded due to the retention of the condenser caused by the assembly errors of the fins can be avoided, and the reliability is improved.

Illustratively, as shown in fig. 8, the first connecting plate 21 is a flat plate having an angle of 120 ° with the rectangular fin plate 1.

It should be noted that, compared with the case that a flat plate is adopted as the connecting plate, and an arc-shaped plate is adopted as the connecting plate, the connecting plate can bear larger load, and the reliability is better.

Fig. 9 is an assembly schematic diagram of a fin provided by an embodiment of the present disclosure. As shown in fig. 9, the fin further includes a first flange 31, the first flange 31 is connected to the bottom of the groove 110, the first flange 31 is parallel to the connecting side 13, and the first flange 31 is vertically connected to the rectangular fin plate 1.

In the above implementation manner, the first flanging 31 is arranged at the bottom of the groove 110 to increase the contact area between the flat pipe 42 and the groove 110, so as to improve the heat exchange efficiency.

In the embodiment of the present disclosure, the flat pipe 42 and the groove 110 are fixedly connected by brazing, so that the first flanging 31 is disposed at the bottom of the groove 110, the area between the groove 110 and the flat pipe 42 for welding can be increased, and welding and fixing are facilitated.

Fig. 10 is a schematic view illustrating an assembly of another fin and a flat tube according to an embodiment of the present disclosure. As shown in fig. 10, the connecting side 13 is provided with a second turned-up edge 32, the second turned-up edge 32 is located on one side of the connecting side 13 close to the windward side 11, the second turned-up edge 32 is vertically connected with the rectangular fin plate 1, and the side of the second turned-up edge 32 close to the connecting side 13 is coplanar with the connecting side 13.

After the rectangular fin plates 1 on the two sides of the flat tube 42 are butted, the connecting sides 13 of the two rectangular fin plates 1 are connected, so that the second flanges 32 on the connecting sides 13 are also butted, that is, the line contact of the connecting sides 13 is adjusted to be the surface contact between the two second flanges 32. Like this, even after the butt joint of rectangular fin board 1, assembly error appears between two butt joint rectangular fin boards 1, and leads to having certain contained angle between two rectangular fin boards 1 for the connection side 13 of rectangular fin board 1 no longer docks the contact, and the second turn-ups 32 on two rectangular fin boards 1 is even misplaced still can dock the contact, and the comdenstion water just can be followed another rectangular fin board 1 of rectangular fin board 1 drainage through two butt joint second turn-ups 32 like this. Therefore, the problem that the condenser is retained to corrode the flat tube 42 due to fin assembly errors can be avoided, and reliability is improved.

Optionally, as shown in fig. 3, the rectangular fin plate 1 has a heat dissipation opening 14, a plurality of heat dissipation blades 15 are disposed in the heat dissipation opening 14, and the heat dissipation blades 15 are disposed at an included angle with the rectangular fin plate 1.

Thus, after the air flow enters the gaps among the rectangular fin plates 1, the air flow enters the heat dissipation port 14 under the guidance of the heat dissipation blades 15 in the heat dissipation port 14, so that the time of the air flow passing through the fins is prolonged, the heat exchange time is prolonged, and the heat exchange efficiency is improved. Meanwhile, the heat radiating blades 15 which are distributed at an angle with the rectangular fin plate 1 are arranged, so that the contact area between air and fins can be effectively increased, and the heat exchange efficiency is improved.

Illustratively, as shown in fig. 3, the heat dissipating blades 15 are strip-shaped, two ends of the heat dissipating blades 15 are respectively connected to two opposite sides of the heat dissipating opening 14, and a plurality of heat dissipating blades 15 are arranged in parallel at intervals to fill the whole heat dissipating opening 14. As shown in fig. 7, the angle α between the heat dissipating fins 15 and the rectangular fin plate 1 may be 25 ° to 50 °.

Alternatively, the length of the heat dissipation opening 14 in the length direction of the connecting side 13 is not greater than the length of the groove 110. Because the area with the best heat dissipation effect in the fin is the area close to the flat tube 42, the size of the heat dissipation opening 14 is reasonably set, the length of the heat dissipation opening 14 is controlled not to be larger than the length of the groove 110, and the heat dissipation can be realized to the maximum degree on the premise of setting the minimum heat dissipation blades 15.

Embodiments of the present disclosure provide a condenser comprising fins as described hereinbefore.

Fig. 11 is a schematic structural diagram of a condenser according to an embodiment of the present disclosure. As shown in fig. 11, the condenser further includes: two parallel spaced-apart collecting tubes 41 and a plurality of parallel spaced-apart flat tubes 42.

As shown in fig. 11, each of the flat tubes 42 is located between two collecting pipes 41, and both ends of the flat tube 42 are respectively communicated with the two collecting pipes 41.

As shown in fig. 4, the flat tubes 42 are located in the grooves 110 and connected to the bottoms of the grooves 110, the connecting sides 13 of the fins located on both sides of the flat tubes 42 are butted against each other, and the first connecting plates 21 of the fins located on both sides of the flat tubes 42 are butted against each other.

For example, as shown in fig. 4, the first connecting plate 21 is a circular arc plate, and after the connecting sides 13 of the two rectangular fin plates 1 are butted, the sides of the two first connecting plates 21 where the curved sides are located are also butted.

As shown in fig. 4, a plurality of fins arranged at intervals are arranged between two adjacent flat tubes 42, two windward sides 11 of the two adjacent fins are connected by a first connecting plate 21, and two leeward sides 12 of the two adjacent fins are connected by a second connecting plate 22.

For example, as shown in fig. 4, the first connecting plate 21 and the second connecting plate 22 are both arc plates, and at this time, between the two flat tubes 42, in two adjacent fins, the side edges where the straight edges of the first connecting plate 21 are opposite are butted together, and the side edges where the straight edges of the second connecting plate 22 are opposite are butted together, so that the fins are combined to be distributed in a wave shape.

When heat exchange is carried out in the condenser, airflow flows to the flat tubes 42 from one side of the windward side edges 11 of the fins, and after entering a heat exchange space between the flat tubes 42, air contacts with the fins connected with the flat tubes 42, so that heat exchange is carried out. In the heating process, the condenser needs to absorb heat in the air through the condenser pipe so as to reduce the temperature of the condenser, and meanwhile, moisture in the air is condensed into condensed water on the condenser.

At this time, because the connecting side edges 13 of the rectangular fin plates 1 positioned at the two sides of the flat tube 42 are butted, the rectangular fin plates 1 at the two sides of the flat tube 42 can form a continuous integral structure, so that condensed water can be discharged along the sequentially connected rectangular fin plates 1. Meanwhile, after the rectangular fin plates 1 on the two sides of the flat tube 42 are butted, the side edges of the two first connecting plates 21 on the two sides of the flat tube 42 can also be butted together. And at least partial region of the first connecting plate 21 extends towards the direction far away from the rectangular fin plate 1, therefore, even if assembly errors occur between two butted rectangular fin plates 1 after the rectangular fin plates 1 are butted, and a certain included angle exists between the two butted rectangular fin plates 1, the side edges of the two butted first connecting plates 21 are still contacted, so that condensed water can be drained from one rectangular fin plate 1 to the other rectangular fin plate 1 through the two butted first connecting plates 21. Therefore, the problem that the condenser is retained to corrode the flat tube 42 due to fin assembly errors can be avoided, and reliability is improved.

Although the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the disclosure.

Claims

1. A fin, characterized in that the fin comprises:

the rectangular fin plate (1) is provided with a windward side edge (11), a leeward side edge (12) and two connecting side edges (13), the windward side edge (11) and the leeward side edge (12) are opposite side edges, the two connecting side edges (13) are opposite side edges, and grooves (110) are formed in the two connecting side edges (13);

two first connecting plates (21) are positioned on two sides of the windward side (11), the side edges, close to the connecting side edges (13), of the first connecting plates (21) are coplanar with the connecting side edges (13), and at least partial areas of the first connecting plates (21) extend in the direction far away from the rectangular fin plate (1);

a second connecting plate (22) having the same structure as the first connecting plate (21), the second connecting plate (22) being located on the leeward side (12).

2. The fin according to claim 1, characterized in that said first connection plate (21) is an arc having a straight side connected to said windward side (11) and a curved side coplanar with said connection side (13) and close to said connection side (13).

3. The fin according to claim 1, wherein the first connecting plate (21) is a flat plate, one side of which is connected to the windward side (11), the flat plate being arranged at an angle to the rectangular fin plate (1).

4. The fin according to claim 1, further comprising a first flange (31), wherein the first flange (31) is connected to the bottom of the groove (110), the first flange (31) is parallel to the connecting side (13), and the first flange (31) is perpendicularly connected to the rectangular fin plate (1).

5. The fin according to claim 1, characterized in that the connecting side (13) is provided with a second flange (32), the second flange (32) is located on the side of the connecting side (13) close to the windward side (11), the second flange (32) is perpendicularly connected to the rectangular fin plate (1), and the side of the second flange (32) close to the connecting side (13) is coplanar with the connecting side (13).

6. The fin according to any one of claims 1 to 5, wherein the width of the first connecting plate (21) in the length direction of the windward side (11) is not greater than the groove depth of the groove (110).

7. The fin according to any one of claims 1 to 5, wherein the rectangular fin plate (1) has a heat dissipation opening (14), a plurality of parallel heat dissipation blades (15) are arranged in the heat dissipation opening (14), and the heat dissipation blades (15) are arranged at an included angle with the rectangular fin plate (1).

8. The fin according to claim 7, characterized in that the length of the heat dissipation opening (14) in the length direction of the connecting side (13) is not greater than the length of the groove (110).

9. A condenser, characterized in that it comprises a fin according to any one of claims 1 to 8.

10. The condenser of claim 9, further comprising: two parallel collecting pipes (41) arranged at intervals and a plurality of parallel flat pipes (42) arranged at intervals;

the flat pipes (42) are located between the two collecting pipes (41), and two ends of each flat pipe (42) are respectively communicated with the two collecting pipes (41);

the flat pipe (42) is positioned in the groove (110) and connected with the groove bottom of the groove (110), the connecting side edges (13) of the fins positioned at two sides of the flat pipe (42) are butted, and the first connecting plates (21) of the fins positioned at two sides of the flat pipe (42) are butted;

a plurality of fins arranged at intervals are arranged between two adjacent flat tubes (42), two windward sides (11) of the two adjacent fins are connected through the first connecting plate (21), and two leeward sides (12) of the two adjacent fins are connected through the second connecting plate (22).