Fins and condensers

Abstract

The present disclosure provides a fin and a condenser, belonging to the technical field of heat exchangers. The fin includes: a rectangular fin plate, having a windward side, a leeward side and two connecting sides, the windward side and the leeward side are opposite sides, the two connecting sides are opposite sides, and both connecting sides are provided with grooves; two first connecting plates, located on both sides of the windward side, the side of the first connecting plate close to the connecting side is coplanar with the connecting side, and at least part of the area of ​​the first connecting plate extends in a direction away from the rectangular fin plate; a second connecting plate, having the same structure as the first connecting plate, and the second connecting plate is located on the leeward side. The present disclosure can avoid the problem of condenser retention and flat tube corrosion due to fin assembly errors, thereby improving reliability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of heat exchangers, and in particular to a fin and a condenser. Background Art

[0002] The condenser is a heat exchange device used in air conditioners. During the cooling process of the air conditioner, the function of the condenser is to convert the gaseous refrigerant inside the air conditioner into liquid, and quickly dissipate the released heat into the air to achieve cooling; during the heating process of the air conditioner, the condenser needs to absorb the surrounding heat to lower the temperature of the condenser itself, which will cause the moisture in the air to condense into condensed water on the condenser.

[0003] In the related art, the condenser includes: fins, two headers and a plurality of flat tubes, wherein the two headers are arranged in parallel and spaced apart, the plurality of flat tubes are arranged in parallel and spaced apart, and the two ends of the flat tubes are respectively connected to the side walls of the two headers and communicated with the headers, and a fin connected to the flat tubes is provided between the two flat tubes, and the heat exchange area between the air and the flat tubes is increased by the fins. During the heating process, in order to prevent condensed water from accumulating on the flat tubes and causing corrosion, grooves are usually provided on the sides where the fins are connected to the flat tubes, so that after the fins on both sides of the flat tubes are installed on the flat tubes, the grooves of the two fins accommodate the flat tubes therein, and the parts of the two fins other than the grooves are connected together, so that the condensed water can flow through each fin in turn and drain away.

[0004] However, in the actual assembly process, due to assembly errors, after the fins are assembled, the fins on both sides of the flat tube are often not coplanar, that is, the parts outside the grooves on the two fins are misaligned, which leads to the fins not being well connected together, thereby hindering drainage and causing condensed water to accumulate on the flat tube and cause corrosion. Summary of the invention

[0005] The disclosed embodiment provides a fin and a condenser, which can avoid the problem of condenser retention and flat tube corrosion caused by fin assembly error, and improve reliability. The technical solution is as follows:

[0006] An embodiment of the present disclosure provides a fin, which includes: a rectangular fin plate, having a windward side, a leeward side and two connecting side edges, the windward side edge and the leeward side edge are opposite side edges, the two connecting side edges are opposite side edges, and both of the connecting side edges are provided with grooves; two first connecting plates, located on both sides of the windward side edge, the side edges of the first connecting plate close to the connecting side edges are coplanar with the connecting side edges, and at least a portion of the first connecting plate extends in a direction away from the rectangular fin plate; a second connecting plate, having the same structure as the first connecting plate, and the second connecting plate is located on the leeward side edge.

[0007] In one implementation of the embodiment of the present disclosure, the first connecting plate is an arc-shaped plate, a side where a straight edge of the arc-shaped plate is located is connected to the windward side, and a side where a curved edge of the arc-shaped plate close to the connecting side is located is coplanar with the connecting side.

[0008] In another implementation 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 is arranged at an angle to the rectangular fin plate.

[0009] In another implementation of the embodiment of the present disclosure, the fin further includes a first flange, the first flange is connected to the bottom of the groove, the first flange is parallel to the connecting side, and the first flange is vertically connected to the rectangular fin plate.

[0010] In another implementation of the embodiment of the present disclosure, the connecting side is provided with a second flange, the second flange is located on the side of the connecting side close to the windward side, the second flange is vertically connected to the rectangular fin plate, and the side surface of the second flange close to the connecting side is coplanar with the connecting side.

[0011] In another implementation of the embodiment of the present disclosure, in the length direction of the windward side, the width of the first connecting plate is not greater than the depth of the groove.

[0012] In another implementation of the embodiment of the present disclosure, the rectangular fin plate has a heat dissipation port, and a plurality of heat dissipation blades distributed in parallel and at intervals are arranged in the heat dissipation port, and the heat dissipation blades are arranged at an angle to the rectangular fin plate.

[0013] In another implementation of the embodiment of the present disclosure, in the length direction of the connecting side, the length of the heat dissipation opening is not greater than the length of the groove.

[0014] An embodiment of the present disclosure provides a condenser, wherein the condenser includes the fins as described above.

[0015] In another implementation of the embodiment of the present disclosure, the condenser also includes: two parallel and spaced collecting tubes and a plurality of parallel and spaced flat tubes; the plurality of flat tubes are located between the two collecting tubes, and the two ends of the flat tubes are respectively connected to the two collecting tubes; the flat tubes are located in the groove and connected to the bottom of the groove, the connecting side edges of the fins located on both sides of the flat tubes are butt-jointed, and the first connecting plates of the fins located on both sides of the flat tubes are butt-jointed; a plurality of spaced fins are provided between two adjacent flat tubes, the two windward sides of two adjacent fins are connected by the first connecting plate, and the two leeward sides of two adjacent fins are connected by the second connecting plate.

[0016] The beneficial effects brought by the technical solution provided by the embodiments of the present disclosure include at least:

[0017] The fin provided by the embodiment of the present disclosure includes a rectangular fin plate, a first connecting plate and a second connecting plate, wherein grooves are provided on the two connecting sides of the rectangular fin plate, and the grooves are used to accommodate the flat tubes, so that when the fins are installed on the flat tubes, the rectangular fin plates located on both sides of the flat tubes can clamp the flat tubes together through the grooves. After the flat tubes are pressed tightly by the grooves of the rectangular fin plates, the connecting sides of the rectangular fin plates located on both sides of the flat tubes outside the grooves will be butted together, so that the rectangular fin plates on both sides of the flat tubes can form a continuous integral structure, so that condensed water can be discharged along the rectangular fin plates connected in sequence.

[0018] At the same time, first connecting plates are provided on both sides of the windward side of the rectangular fin plate. Since the side of the first connecting plate close to the connecting side is coplanar with the connecting side, after the rectangular fin plates on both sides of the flat tube are butted, the side edges of the two first connecting plates on both sides of the flat tube can also be butted together. Since at least part of the area of ​​the first connecting plate extends in a direction away from the rectangular fin plate, even after the rectangular fin plates are butted, an assembly error occurs between the two butted rectangular fin plates, resulting in a certain angle between the two rectangular fin plates, so that the connecting side edges of the rectangular fin plates are no longer butted and contacted, and part of the first connecting plate deviates from the plane where the rectangular fin plate is located, so there will still be part of the area on the side edges of the two butted first connecting plates that are in contact, so that condensed water can be drained from one rectangular fin plate to another rectangular fin plate through the two butted first connecting plates. Thereby, the problem of condenser retention and flat tube corrosion caused by fin assembly error can be avoided, and reliability can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the assembly of fins and flat tubes in a condenser provided by the related technology;

[0021] Figure 2 It is another schematic diagram of the assembly of fins and flat tubes in a condenser provided by the related technology;

[0022] Figure 3 is a structural schematic diagram of a fin provided by an embodiment of the present disclosure;

[0023] Figure 4 It is a schematic diagram of an assembly of a fin and a flat tube provided by an embodiment of the present disclosure;

[0024] Figure 5 is another schematic diagram of assembling fins and flat tubes provided in an embodiment of the present disclosure;

[0025] Figure 6 is a schematic diagram of an assembly of a fin provided by an embodiment of the present disclosure;

[0026] Figure 7 yes Figure 6 A side view of a fin is provided;

[0027] Figure 8 is a schematic diagram of an assembly of a fin provided by an embodiment of the present disclosure;

[0028] Fig. 9 is a schematic diagram of an assembly of a fin provided by an embodiment of the present disclosure;

[0029] Fig.10 It is another schematic diagram of assembling fins and flat tubes provided in an embodiment of the present disclosure;

[0030] Fig.11 It is a structural schematic diagram of a condenser provided in an embodiment of the present disclosure.

[0031] The descriptions of the marks in the figure are as follows:

[0032] 1- rectangular fin plate, 11- windward side, 110- groove, 12- leeward side, 13- connecting side, 14- heat dissipation port, 15- heat dissipation blade;

[0033] 21-first connecting plate, 22-second connecting plate;

[0034] 31-first flange, 32-second flange;

[0035] 41-manifold, 42-flat tube;

[0036] A-Fin. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0038] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", "top", "bottom" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] In the related art, the condenser generally includes: fins, two headers and a plurality of flat tubes. The two headers are arranged in parallel and spaced apart, and the plurality of flat tubes are arranged in parallel and spaced apart, and the two ends of the flat tubes are respectively connected to the side walls of the two headers and communicated with the headers, and a fin connected to the flat tubes is provided between the two flat tubes, and the heat exchange area between the air and the flat tubes is increased by the fins.

[0040] Figure 1 This is a schematic diagram of the assembly of fins and flat tubes in a condenser provided by the related technology. Figure 1 As shown, a groove 110 is provided on the side where the fin A is connected to the flat tube 42, so that after the fins A located on both sides of the flat tube 42 are installed on the flat tube 42, the grooves 110 of the two fins A accommodate the flat tube 42 therein, and the parts of the two fins A other than the grooves 110 are connected together, so that the condensed water can flow through each fin A in turn and drain away, so as to avoid the condensed water gathering on the flat tube 42 and causing corrosion.

[0041] Figure 2 This is another schematic diagram of the assembly of fins and flat tubes in a condenser provided by the related technology. Figure 2 As shown, in the actual assembly process, due to assembly errors, the fins A on both sides of the flat tube 42 are often not coplanar, that is, the parts outside the grooves 110 on the two fins A are misaligned, which leads to the fins A not being well connected together, thereby hindering drainage and causing condensed water to gather on the flat tube 42 and cause corrosion.

[0042] To this end, an embodiment of the present disclosure provides a fin. Figure 3 Schematic diagram of the structure of a fin provided by an embodiment of the present disclosure. Figure 3 As shown, the fin includes: a rectangular fin plate 1 , a second connecting plate 22 and two first connecting plates 21 .

[0043] like Figure 3 As shown, 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 both connecting sides 13 are provided with grooves 110 .

[0044] like Figure 3 As shown, the two first connecting plates 21 are located on both sides of the windward side 11 , the sides of the first connecting plates 21 close to the connecting side 13 are coplanar with the connecting side 13 , and at least part of the first connecting plates 21 extend in a direction away from the rectangular fin plate 1 .

[0045] like Figure 3 As shown, the second connecting plate 22 has the same structure as the first connecting plate 21 , and the second connecting plate 22 is located at the leeward side 12 .

[0046] 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 . Figure 4 FIG. 1 is a schematic diagram of an assembly of a fin and a flat tube provided in an embodiment of the present disclosure. Figure 4 As shown, grooves 110 are provided on the two connecting sides 13 of the rectangular fin plate 1. The grooves 110 are used to accommodate the flat tubes 42. In this way, when the fins are installed 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 pressed tightly by the grooves 110 of the rectangular fin plates 1, the connecting sides 13 of the rectangular fin plates 1 on both sides of the flat tubes 42 are butted together outside the grooves 110, so that the rectangular fin plates 1 on both sides of the flat tubes 42 can form a continuous integral structure, so that the condensed water can be discharged along the rectangular fin plates 1 connected in sequence (see Figure 4 The flow direction is shown by the arrows).

[0047] At the same time, if Figure 4 As shown, first connecting plates 21 are further provided on both sides of the windward side 11 of the rectangular fin plate 1. Since the side edges of the first connecting plate 21 close to the connecting side edge 13 are coplanar with the connecting side edge 13, after the rectangular fin plates 1 on both sides of the flat tube 42 are butt-jointed, the side edges of the two first connecting plates 21 on both sides of the flat tube 42 can also be butt-jointed together. Figure 5 FIG. 1 is another schematic diagram of assembling fins and flat tubes provided in an embodiment of the present disclosure. Figure 5As shown, since at least part of the area of ​​the first connecting plate 21 extends in a direction away from the rectangular fin plate 1, even after the rectangular fin plates 1 are butt-jointed, an assembly error occurs between the two butt-jointed rectangular fin plates 1, resulting in a certain angle between the two rectangular fin plates 1, so that the connecting side edges 13 of the rectangular fin plates 1 are no longer butt-jointed and contacted, and part of the area of ​​the first connecting plate 21 deviates from the plane where the rectangular fin plate 1 is located, so there will still be part of the area between the side edges of the two butt-jointed first connecting plates 21 that are in contact, so that condensed water can be drained from one rectangular fin plate 1 to another rectangular fin plate 1 through the two butt-jointed first connecting plates 21 (see Figure 5 The flow direction is shown by the arrow in the middle). This can avoid the problem of condenser retention and corrosion of the flat tube 42 due to fin assembly error, thereby improving reliability.

[0048] 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 half of the length H of the windward side 11; the width of the second connecting plate 22 is not greater than the length h of the leeward side 12. The width of the first connecting plate 21 and the width of the second connecting plate 22 can be adjusted according to the design requirements of the fin strength.

[0049] For example, Figure 3 As shown, in the length direction of the windward side 11 , the width of the first connecting plate 21 is not greater than the depth of the groove 110 .

[0050] Since the groove 110 is used to accommodate the flat tube 42, in the disclosed embodiment, after the rectangular fin plates 1 on both sides of the flat tube 42 are butted, the grooves 110 of the two rectangular fin plates 1 just abut against the side of the flat tube 42, that is, the total groove depth after the two grooves 110 are combined is equal to the thickness of the flat tube 42. In this way, the width of the first connecting plate 21 is set to be smaller than the groove depth of the groove 110, and the first connecting plate 21 will not block the heat exchange space between the two flat tubes 42 for air circulation. That is, the first connecting plate 21 is in the same position as the flat tube 42 to minimize wind resistance and improve heat exchange efficiency.

[0051] Figure 6 FIG. 1 is a schematic diagram of the assembly of a fin provided by an embodiment of the present disclosure. Figure 6 As shown, the rectangular fin plates 1 in the multiple fins are distributed in parallel and at intervals. Since at least part of the area of ​​the first connecting plate 21 and the second connecting plate 22 extends in the direction away from the rectangular fin plate 1, the two spaced-apart rectangular fin plates 1 can be connected by the part of the first connecting plate 21 extending outwardly and the part of the second connecting plate 22 extending outwardly, 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.

[0052] Figure 7 yes Figure 6 A side view of a fin is provided. Figure 7 As shown, after two adjacent rectangular fin plates 1 are connected by a connecting plate, each fin can be combined to form a wave-shaped distribution.

[0053] Among the two adjacent rectangular fin plates 1 , the butt joints of the first connecting plates 21 and the butt joints of the second connecting plates 22 are both fixed by brazing.

[0054] In the disclosed embodiment, the length of the connecting side 13 of the rectangular fin plate 1 can be determined by the width of the flat tube 42 of the fin to be assembled.

[0055] Exemplarily, if the width of the flat tube 42 is 20 mm, the length of the connecting side 13 of the rectangular fin plate 1 needs to be greater than 20 mm. For example, the length of the connecting side 13 is 25 mm, so that after the groove 110 is opened, a partial area is retained on the connecting side 13 to connect with the connecting side 13 on the other side of the flat tube 42 to form a continuous fin structure.

[0056] In the disclosed embodiment, the lengths of the windward side 11 and the leeward side 12 of the rectangular fin plate 1 can be determined by the distribution spacing of the flat tubes 42 .

[0057] For example, Figure 3 , 4 As shown, the groove 110 connecting the side 13 extends 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. Since the grooves 110 of the rectangular fin plate 1 located on both sides of the flat tube 42 are tightly fitted with 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 one flat tube 42.

[0058] For example, if the distribution interval of the flat tubes 42 is 10 mm, the length of the leeward side 12 may be 10 mm, and the length of the windward side 11 may be 15 mm.

[0059] Alternatively, if Figure 3 , 4 As shown, the first connecting plate 21 is an arc-shaped plate, a side where a straight edge of the arc-shaped plate is located is connected to the windward side 11 , and a side where a curved edge of the arc-shaped plate close to the connecting side 13 is located is coplanar with the connecting side 13 .

[0060] Since the side of the curved edge of the curved plate close to the connecting side 13 is coplanar with the connecting side 13, after the rectangular fin plates 1 on both sides of the flat tube 42 are butted, the sides of the curved edges of the two curved plates on both sides of the flat tube 42 can also be butted together. In addition, the curved plate is bent in a direction away from the rectangular fin plate 1, so even after the rectangular fin plates 1 are butted, there is an assembly error between the two butted rectangular fin plates 1, and there are some areas of the curved plate that deviate from the plane where the rectangular fin plate 1 is located, so there are still some areas on the sides of the two butted curved plates that are in contact, thereby avoiding the problem of condenser retention and corrosion of the flat tube 42 due to fin assembly errors, thereby improving reliability.

[0061] For example, Figure 3 , 6 As shown, the first connecting plate 21 is an arc plate, wherein the arc corresponding to the arc plate is a quarter arc, and after the side where one straight side of the arc plate is connected to the windward side 11, the side where the other straight side of the arc plate is bent outward. When two parallel and spaced rectangular fin plates 1 are connected, the two connected arc plates can be butted together to form a semicircular plate.

[0062] Figure 8 FIG. 1 is a schematic diagram of the assembly of a fin provided by an embodiment of the present disclosure. Figure 8 As shown, the first connecting plate 21 is a flat plate, one side of which is connected to the windward side 11 , and the flat plate is arranged at an angle to the rectangular fin plate 1 .

[0063] Since the side edge of the flat plate close to the connecting side edge 13 is coplanar with the connecting side edge 13, after the rectangular fin plates 1 on both sides of the flat tube 42 are butted, the side edges of the two flat plates on both sides of the flat tube 42 can also be butted together. In addition, the flat plate is inclined in a direction away from the rectangular fin plate 1, so even if the rectangular fin plates 1 are butted, there is an assembly error between the two butted rectangular fin plates 1, and there are some areas of the flat plate that deviate from the plane where the rectangular fin plate 1 is located, so there will still be some areas on the sides of the two butted flat plates that are in contact, thereby avoiding the problem of condenser retention and corrosion of the flat tube 42 due to fin assembly errors, thereby improving reliability.

[0064] For example, Figure 8 As shown, the first connecting plate 21 is a flat plate, and an angle of 120° is formed between the flat plate and the rectangular fin plate 1 .

[0065] It should be noted that, compared with using a flat plate as a connecting plate, when an arc-shaped plate is used as a connecting plate, the connecting plate can bear a larger load and has better reliability.

[0066] Fig. 9 FIG. 1 is a schematic diagram of the assembly of a fin provided by an embodiment of the present disclosure. Fig. 9As shown, the fin further includes a first flange 31 , which is connected to the bottom of the groove 110 , parallel to the connecting side 13 , and vertically connected to the rectangular fin plate 1 .

[0067] In the above implementation, the first flange 31 is provided at the bottom of the groove 110 to increase the contact area between the flat tube 42 and the groove 110 , so as to improve the heat exchange efficiency.

[0068] In the disclosed embodiment, the flat tube 42 and the groove 110 are fixedly connected by brazing. Therefore, by providing a first flange 31 at the bottom of the groove 110, the area available for welding between the groove 110 and the flat tube 42 can be increased, thereby facilitating welding and fixing.

[0069] Fig.10 FIG. 1 is another schematic diagram of assembling a fin and a flat tube provided by an embodiment of the present disclosure. Fig.10 As shown, the connecting side 13 is provided with a second flange 32, which is located on the side of the connecting side 13 close to the windward side 11, the second flange 32 is vertically 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.

[0070] Since the connecting sides 13 of the two rectangular fin plates 1 are connected after the rectangular fin plates 1 on both sides of the flat tube 42 are butted, the second flanges 32 on the connecting sides 13 are also butted and fitted, that is, the line contact of the connecting sides 13 is adjusted to the surface contact between the two second flanges 32. In this way, even if there is an assembly error between the two butted rectangular fin plates 1 after the rectangular fin plates 1 are butted, resulting in a certain angle between the two rectangular fin plates 1, so that the connecting sides 13 of the rectangular fin plates 1 are no longer butted, and the second flanges 32 on the two rectangular fin plates 1 can still be butted even if they are misaligned, so that condensed water can be drained from one rectangular fin plate 1 to another rectangular fin plate 1 through the two butted second flanges 32. Thereby, the problem of condenser retention and corrosion of the flat tube 42 due to fin assembly error can be avoided, and reliability is improved.

[0071] Alternatively, if Figure 3 As shown, the rectangular fin plate 1 has a heat dissipation opening 14 , and a plurality of heat dissipation blades 15 are arranged in the heat dissipation opening 14 and are distributed in parallel and at intervals. The heat dissipation blades 15 are arranged at an angle to the rectangular fin plate 1 .

[0072] In this way, when the airflow enters the gap between the rectangular fin plates 1, it enters the heat dissipation port 14 under the guidance of the heat dissipation blades 15 in the heat dissipation port 14, so as to prolong the time for the airflow to pass through the fins, thereby increasing the heat exchange time and improving the heat exchange efficiency. At the same time, the heat dissipation blades 15 arranged at an angle to the rectangular fin plates 1 can also effectively increase the contact area between the air and the fins, so as to improve the heat exchange efficiency.

[0073] For example, Figure 3 As shown, the heat dissipation blade 15 is strip-shaped, and the two ends of the heat dissipation blade 15 are respectively connected to the two opposite sides of the heat dissipation opening 14, and a plurality of heat dissipation blades 15 are arranged in parallel and spaced apart to fill the entire heat dissipation opening 14. Figure 7 As shown, the included angle α between the heat dissipation blade 15 and the rectangular fin plate 1 can be 25° to 50°.

[0074] Optionally, in the length direction of the connecting side 13, the length of the heat dissipation opening 14 is not greater than the length of the groove 110. Since 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, and the length of the heat dissipation opening 14 is controlled not to be greater than the length of the groove 110, so that the maximum heat dissipation can be achieved under the premise of setting the minimum heat dissipation blades 15.

[0075] An embodiment of the present disclosure provides a condenser, and the condenser includes the fins as described above.

[0076] Fig.11 Schematic diagram of a condenser provided by an embodiment of the present disclosure. Fig.11 As shown, the condenser further includes: two parallel and spaced-apart manifolds 41 and a plurality of parallel and spaced-apart flat tubes 42 .

[0077] like Fig.11 As shown, the plurality of flat tubes 42 are located between the two headers 41 , and both ends of the flat tubes 42 are respectively connected to the two headers 41 .

[0078] like Figure 4 As shown, the flat tube 42 is located in the groove 110 and connected to the groove bottom of the groove 110 , the connecting sides 13 of the fins on both sides of the flat tube 42 are butted, and the first connecting plates 21 of the fins on both sides of the flat tube 42 are butted.

[0079] For example, Figure 4 As shown, the first connecting plate 21 is an arc plate. At this time, after the connecting sides 13 of the two rectangular fin plates 1 are butted, the sides where the curved edges of the two first connecting plates 21 are also butted.

[0080] like Figure 4 As shown, a plurality of fins arranged at intervals are provided between two adjacent flat tubes 42 , the two windward sides 11 of the two adjacent fins are connected by a first connecting plate 21 , and the two leeward sides 12 of the two adjacent fins are connected by a second connecting plate 22 .

[0081] For example, Figure 4As shown, the first connecting plate 21 and the second connecting plate 22 are both arc plates. At this time, between the two flat tubes 42, in two adjacent fins, the sides where the straight edges of the opposite first connecting plates 21 are butt-jointed together, and the sides where the straight edges of the opposite second connecting plates 22 are butt-jointed together, so that each fin is combined to present a wave-shaped distribution.

[0082] When the condenser performs heat exchange, the airflow flows from the windward side 11 of the fin to the flat tube 42, and after entering the heat exchange space between the flat tubes 42, the air contacts the fins connected to the flat tubes 42, thereby performing heat exchange. During the heating process, the condenser needs to absorb heat from the air through the condenser tube to reduce the temperature of the condenser itself, and at the same time, the moisture in the air will condense into condensed water on the condenser.

[0083] At this time, since the connecting side edges 13 of the rectangular fin plates 1 on both sides of the flat tube 42 are butt-jointed, the rectangular fin plates 1 on both sides of the flat tube 42 can form a continuous integral structure, so that the condensed water can be discharged along the rectangular fin plates 1 connected in sequence. At the same time, after the rectangular fin plates 1 on both sides of the flat tube 42 are butt-jointed, the side edges of the two first connecting plates 21 on both sides of the flat tube 42 can also be butt-jointed together. At least part of the area of ​​the first connecting plate 21 extends in a direction away from the rectangular fin plate 1. Therefore, even if there is an assembly error between the two butted rectangular fin plates 1 after the rectangular fin plates 1 are butt-jointed, resulting in a certain angle between the two rectangular fin plates 1, the side edges of the two butted first connecting plates 21 will still be in contact, so that the condensed water can be drained from one rectangular fin plate 1 to another rectangular fin plate 1 through the two butted first connecting plates 21. Thereby, the problem of condenser retention and corrosion of the flat tube 42 due to fin assembly error can be avoided, and reliability can be improved.

[0084] The above does not limit the present disclosure in any form. Although the present disclosure has been disclosed as above through the embodiments, it is not used to limit the present disclosure. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present disclosure. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure still falls within the scope of the technical solution of the present disclosure.

Claims

1. A fin, characterized in that: The fin comprises: A rectangular fin plate (1) having a windward side (11), a leeward side (12) and two connecting side edges (13), wherein the windward side (11) and the leeward side (12) are opposite side edges, the two connecting side edges (13) are opposite side edges, and the two connecting side edges (13) are both provided with a groove (110); Two first connecting plates (21) are located on both sides of the windward side edge (11), the side edges of the first connecting plates (21) close to the connecting side edge (13) are coplanar with the connecting side edge (13), and at least a portion of the first connecting plates (21) extends in a direction deviating from the plane where the rectangular fin plate (1) is located; 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).

2. The fin according to claim 1, characterized in that: The first connecting plate (21) is an arc-shaped plate, a side where a straight edge of the arc-shaped plate is located is connected to the windward side (11), and a side where a curved edge of the arc-shaped plate close to the connecting side (13) is located is coplanar with the connecting side (13).

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

4. The fin according to claim 1, characterized in that: The fin further comprises a first flange (31), the first flange (31) being connected to the bottom of the groove (110), the first flange (31) being parallel to the connecting side (13), and the first flange (31) being vertically connected to the rectangular fin plate (1).

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

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

7. The fin according to any one of claims 1 to 5, characterized in that: The rectangular fin plate (1) has a heat dissipation port (14), and a plurality of heat dissipation blades (15) are arranged in parallel and spaced apart from each other in the heat dissipation port (14), and the heat dissipation blades (15) are arranged at an angle to the rectangular fin plate (1).

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

9. A condenser, characterized in that: The condenser comprises the fin according to any one of claims 1 to 8.

10. The condenser according to claim 9, characterized in that The condenser further comprises: two parallel and spaced-apart current collecting pipes (41) and a plurality of parallel and spaced-apart flat tubes (42); The plurality of flat tubes (42) are all located between the two collecting tubes (41), and the two ends of the flat tubes (42) are respectively connected to the two collecting tubes (41); The flat tube (42) is located in the groove (110) and connected to the groove bottom of the groove (110), the connecting side edges (13) of the fins located on both sides of the flat tube (42) are butted, and the first connecting plates (21) of the fins located on both sides of the flat tube (42) are butted; A plurality of fins arranged at intervals are provided between two adjacent flat tubes (42); the two windward sides (11) of the two adjacent fins are connected via the first connecting plate (21); and the two leeward sides (12) of the two adjacent fins are connected via the second connecting plate (22).

Images