CN118935817A - Evaporator and refrigerator - Google Patents

Abstract

The present application provides an evaporator and a refrigerator. The evaporator includes: a fin; a heat exchange tube monomer, which is arranged on the fin, including a first tube segment, a second tube segment and a third tube segment, the two ends of the second tube segment are respectively connected to the first tube segment and the third tube segment, the first tube segment and the third tube segment extend toward the same side of the second tube segment, and the first tube segment and the third tube segment are spaced apart along the first direction; wherein, the distance along the first direction between one end of the first tube segment connected to the second tube segment and one end of the third tube segment connected to the second tube segment and the distance along the first direction between the other end of the first tube segment and the other end of the third tube segment are not equal; wherein, the first direction is perpendicular to the airflow direction. Through the above method, problems such as leakage of heat exchange medium caused by multi-tube welding can be improved, and the heat exchange efficiency can be improved, saving costs.

Description

Evaporator and refrigerator

Technical Field

The application relates to the field of heat exchange devices, in particular to an evaporator and a refrigerator.

Background

In the related art, in order to improve the heat exchange effect of the evaporator, a plurality of heat exchange tubes are staggered, and the evaporator is formed by inserting the plurality of heat exchange tubes into fins, then welding the bent tube positions, and penetrating the plurality of heat exchange tubes.

However, when the heat exchange tube is welded, welding failure is likely to occur, and thus the quality defect of heat exchange medium leakage is caused. Meanwhile, because the evaporator manufactured by the process has more parts to be welded, the welding needs to be sequentially carried out, and the manufacturing cost of the evaporator is high.

Disclosure of Invention

The application provides an evaporator and a refrigerator, which can improve the problems of leakage of heat exchange media and the like caused by multi-pipe welding, improve the heat exchange efficiency and save the cost.

In order to solve the technical problems, the application adopts a technical scheme that: an evaporator is provided. The evaporator comprises: a fin; the heat exchange tube unit is arranged on the fin and comprises a first tube section, a second tube section and a third tube section, wherein the two ends of the second tube section are respectively connected with the first tube section and the third tube section, the first tube section and the third tube section extend towards the same side of the second tube section, and the first tube section and the third tube section are arranged at intervals along a first direction; the distance between one end of the first pipe section connected with the second pipe section and one end of the third pipe section connected with the second pipe section along the first direction is unequal to the distance between the other end of the first pipe section and the other end of the third pipe section along the first direction; wherein the first direction is perpendicular to the air flow direction.

Wherein, the fins are provided with openings, and the projections of the second pipe sections on the fins along the second direction cover the openings, and/or the projections of the first pipe sections on the fins along the second direction and the projections of the third pipe sections on the fins along the second direction are respectively positioned at two sides of the openings; the second direction is perpendicular to the first direction and the air flow direction.

Wherein the fin further comprises: and the heat dissipation part is connected with the end part of the opening and is arranged at an included angle with the radial direction of the opening.

The heat dissipation part extends along a first plane, and the first plane is a vertical plane in the air flow direction or a plane which is arranged at an included angle with the vertical plane.

Wherein the first pipe section and the third pipe section are at least partially staggered along the airflow direction.

Wherein, the fin includes: a first fin; the second fin group comprises two second fins which are arranged on the same side of the first fin and are arranged at intervals with the first fin along the air flow direction; the second pipe section is arranged on the first fin, one end of the first pipe section connected with the second pipe section and one end of the third pipe section connected with the second pipe section are arranged on the second fin close to the first fin, and the other end of the first pipe section and the other end of the third pipe section are arranged on the other second fin; the second fin is provided with two second pipe holes, two ends of the first pipe section are respectively arranged in one second pipe hole of the two second fins, and two ends of the third pipe section are respectively arranged in the other second pipe hole of the two second fins; the first distance between two second tube holes on the second fin close to the first fin along the first direction is different from the second distance between two second tube holes on the other second fin along the first direction.

Wherein the first distance is less than the second distance.

The first fin is provided with two first tube holes, two ends of the second tube section are respectively arranged in the two first tube holes of the first fin, and a third distance between the two first tube holes is larger than the first distance.

Wherein, two first tube holes stagger along the air current direction and set up, two second tube holes of second fin stagger along the air current direction.

The holes comprise first holes and/or second holes, and the first holes are arranged between the two first pipe holes; and/or a second opening is arranged between the two second pipe holes.

The fins comprise a plurality of second fin groups which are arranged at intervals along the airflow direction, the first pipe section comprises a plurality of first sub-pipe sections, the third pipe section comprises a plurality of second sub-pipe sections, and the plurality of second fin groups, the plurality of first sub-pipe sections and the plurality of second sub-pipe sections are arranged in one-to-one correspondence.

The fins comprise a plurality of first fins and a plurality of second fin groups, wherein the first fins are arranged at intervals along the second direction, and the second fin groups are arranged at intervals along the second direction; the second direction is perpendicular to the first direction and the air flow direction.

In order to solve the technical problems, the application adopts a technical scheme that: a refrigerator is provided. The refrigerator comprises the evaporator.

The beneficial effects of the application are as follows: the evaporator provided by the application is used for carrying out heat exchange on air, wherein the evaporator comprises the fins and the heat exchange tube monomers arranged on the fins, and the heat exchange tube monomers are integrally formed single tubes, so that a welding process is not needed between tube sections, the problems of heat exchange medium leakage and the like caused by multi-tube welding can be solved, the heat exchange efficiency can be improved, and the cost is saved; further, the first pipe section and the third pipe section are arranged at intervals along the first direction, so that the air can have larger flowing space when flowing through the evaporator, the contact area between the pipe section and the air flow can be increased, and the heat exchange efficiency is improved; further, the distance between the first pipe section and the second pipe section is different from the distance between the other end of the first pipe section and the other end of the third pipe section, so that the first pipe section is staggered from the other end of the second pipe section in the vertical direction of the air flow direction, the blocking area between the first pipe section and the other end of the second pipe section in the air flow direction is reduced, and the third pipe section is staggered from the other end of the second pipe section in the vertical direction of the air flow direction, so that the blocking area between the third pipe section and the other end of the third pipe section in the air flow direction is reduced, therefore, the heat exchange area of the first pipe section and the third pipe section to the air flow can be increased, and the heat exchange efficiency is improved; therefore, the application can improve the problems of leakage of heat exchange media and the like caused by multi-pipe welding, can improve the heat exchange efficiency and saves the cost.

Drawings

For a clearer description of the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic view of an embodiment of an evaporator according to the present application;

FIG. 2 is a schematic view of an embodiment of the evaporator of the application;

FIG. 3 is a schematic view of another embodiment of a first fin of the present application;

FIG. 4 is a schematic view of another embodiment of a second fin of the present application;

FIG. 5 is a schematic view showing the structure of an embodiment of the evaporator of the present application;

fig. 6 is a schematic view showing a structural state in the manufacturing process of an embodiment of the evaporator of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present application, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

The present application first proposes an evaporator, as shown in fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the evaporator of the present application. The evaporator of the present embodiment includes: a fin 11; the heat exchange tube unit 12 is arranged on the fin 11 and comprises a first tube section 121, a second tube section 122 and a third tube section 123, wherein two ends of the second tube section 122 are respectively connected with the first tube section 121 and the third tube section 123, the first tube section 121 and the third tube section 123 extend towards the same side of the second tube section 122, and the first tube section 121 and the third tube section 123 are arranged at intervals along a first direction x; wherein, the distance along the first direction x between the end of the first pipe section 121 connected with the second pipe section 122 and the end of the third pipe section 123 connected with the second pipe section 122 is different from the distance along the first direction x between the other end of the first pipe section 121 and the other end of the third pipe section 123; wherein the first direction x is perpendicular to the airflow direction y.

In an application scenario, as shown in fig. 6, the heat exchange tube units 12 in a serpentine shape and arranged in parallel can be manufactured first, a welding process is not required between the tube sections, and then the second tube section 122 is twisted to deform the evaporator, so that other parts of the evaporator are correspondingly deformed, and the first tube section 121 and the third tube section 123 are staggered along the first direction x to form staggered arrangement; further, the first tube segment 121 and the third tube segment 123 in each second fin group are further adjusted in position, in which the first tube segment 121 near the second tube segment 122 and the third tube segment 123 near the second tube segment 122 are pressed to reduce the distance therebetween, so that the end of the first tube segment 121 connected with the second tube segment 122 is staggered with the other end of the first tube segment 121 in the air flow direction y, and the end of the third tube segment 123 connected with the second tube segment 122 is staggered with the other end of the third tube segment 123 in the air flow direction y, thereby further forming staggered arrangement.

Because the heat exchange tube unit 12 is an integrally formed unit tube, a welding process is not needed between tube sections, the problems of heat exchange medium leakage and the like caused by multi-tube welding can be solved, the heat exchange efficiency can be improved, and the cost is saved.

The air flow may flow from the first pipe section 121 and the third pipe section 123 to the second pipe section 122 in the air flow direction y, or may flow in the opposite direction.

Further, the first pipe section 121 and the third pipe section 123 are arranged at intervals along the first direction x, so that air can flow through the evaporator in a larger flow space, the contact area between the pipe section and the air flow can be increased, and the heat exchange efficiency is improved.

Further, the distance between the first end of the first pipe section 121 connected to the second pipe section 122 and the end of the third pipe section 123 connected to the second pipe section 122 along the first direction x is different from the distance between the other end of the first pipe section 121 and the other end of the third pipe section 123 along the first direction x, so that the first end of the first pipe section 121 connected to the second pipe section 122 is staggered from the other end of the first pipe section 121 along the first direction x, further the blocking area between the first end of the first pipe section 121 connected to the second pipe section 122 and the other end of the first pipe section 121 along the air flow direction y is reduced, the heat exchange area of the first pipe section 121 to the air flow can be increased, and the heat exchange efficiency is improved.

Further, the distance between the first end of the first pipe section 121 connected to the second pipe section 122 and the end of the third pipe section 123 connected to the second pipe section 122 along the first direction x is different from the distance between the other end of the first pipe section 121 and the other end of the third pipe section 123 along the first direction x, so that the one end of the third pipe section 123 connected to the second pipe section 122 and the other end of the third pipe section 123 are staggered along the first direction x, further the blocking area between the one end of the third pipe section 123 connected to the second pipe section 122 and the other end of the third pipe section 123 along the air flow direction y is reduced, the heat exchange area of the third pipe section 123 to the air flow can be increased, and the heat exchange efficiency is improved.

Optionally, the first pipe section 121 and the third pipe section 123 of the present embodiment are at least partially offset in the airflow direction x.

Because the first tube segment 121 and the third tube segment 123 are partially staggered along the airflow direction x, the heat exchange area between the airflow flowing through the gaps inside the fins and the first tube segment 121 and the third tube segment 123 can be increased, and the heat exchange effect is improved.

Optionally, the fin 11 of the present embodiment includes: a first fin 111; the second fin group includes two second fins 112, which are disposed on the same side of the first fin 111 and are arranged at intervals in the air flow direction with the first fin 111; the second tube section 122 is disposed on the first fin 111, one end of the first tube section 121 connected to the second tube section 122 and one end of the third tube section 123 connected to the second tube section 122 are disposed on the second fin 112 disposed near the first fin 111, and the other end of the first tube section 121 and the other end of the third tube section 123 are disposed on the other second fin 112.

Since the second fins 112 and the first fins 111 are arranged at intervals along the air flow direction y, a gap extending along the air flow direction y can be formed between the second fins 112 and the first fins, so that air can flow through the evaporator in a larger flow space, the flow speed is improved, and the heat exchange efficiency is improved.

Further, the pipe sections are arranged in the fins, so that the total area of the heat exchange part of the evaporator can be increased while the stability is ensured, and the heat exchange efficiency can be improved;

in other embodiments, the fin structure may be further disposed at a bent pipe position of the heat exchange tube, that is, a part of the reversing position of the tube body, and the shape of the fin is not limited.

In other embodiments, the fins may be a fin set formed by a plurality of fins arranged along the second direction, or may be achieved by embossing grooves on an integrally formed fin structure.

Optionally, the second fin 112 of the present embodiment is provided with two second tube holes, two ends of the first tube section 121 are respectively disposed in one second tube hole of the two second fins 112, and two ends of the third tube section 123 are respectively disposed in the other second tube hole of the two second fins 112; a first distance between two second tube holes in the second fin 112 adjacent to the first fin 111 along the first direction x is different from a second distance between two second tube holes in the other second fin 112 along the first direction x.

Because the pipe sections are arranged on the corresponding fins through the pipe holes on the fins, the position of the pipe sections can be better fixed, and the stability of the evaporator is improved.

Optionally, the first distance of the present embodiment is smaller than the second distance.

By setting the first distance of the pipe holes to be smaller than the second distance in the above manner, it is possible to stagger one end of the first pipe section 121, which is connected to the second pipe section 122, from the other end of the first pipe section 121 along the first direction x, and further reduce the blocking area of the one end of the first pipe section 121, which is connected to the second pipe section 122, and the other end of the first pipe section 121 along the air flow direction y, so that the heat exchange area of the first pipe section 121 to the air flow can be increased, and the heat exchange efficiency is improved; meanwhile, the one end of the third pipe section 123 connected with the second pipe section 122 is staggered with the other end of the third pipe section 123 along the first direction x, so that the blocking area of the one end of the third pipe section 123 connected with the second pipe section 122 and the other end of the third pipe section 123 along the air flow direction y is reduced, the heat exchange area of the third pipe section 123 to the air flow can be increased, and the heat exchange efficiency is improved.

Optionally, the first fin 111 of the present embodiment is provided with two first tube holes, two ends of the second tube section 122 are respectively disposed in the two first tube holes of the first fin 111, and a third distance between the two first tube holes is greater than the first distance.

Because the two ends of the second tube section 122 are respectively arranged in the two first tube holes of the first fin 111, the tube section position can be better fixed, and the stability of the evaporator is improved.

Further, the third distance between the two first pipe holes is greater than the first distance, so that the end of the first pipe section 121 connected with the second pipe section 122 and the end of the second pipe section 122 connected with the first pipe section 121 are staggered along the first direction x, the blocking area of the end of the first pipe section 121 connected with the second pipe section 122 and the end of the second pipe section 122 connected with the first pipe section 121 along the air flow direction y is further reduced, the heat exchange area of the second pipe section 122 on the air flow can be increased, and the heat exchange efficiency is improved; and the third distance between two first tube holes is greater than first distance, can also make the one end that third tube section 123 connected second tube section 122 stagger along first direction x with the one end that second tube section 122 connected third tube section 123, further make the one end that third tube section 123 connected second tube section 122 and the one end that second tube section 122 connected third tube section 123 along air current direction y's the area that blocks reduce, can increase the heat transfer area of second tube section 122 to the air current, improve heat exchange efficiency.

Optionally, the two first tube holes of the present embodiment are staggered along the air flow direction y, and the two second tube holes of the second fin 112 are staggered along the air flow direction y.

Because the two first tube holes of the embodiment are staggered along the air flow direction y, the two second tube holes of the second fin 112 are staggered along the air flow direction y, so that the tube section position can be better fixed, and the stability of the evaporator is improved.

Optionally, the fins 11 of the present embodiment are provided with openings, and the projection of the second tube segment 122 on the fins 11 along the second direction z covers the openings, and the projection of the first tube segment 121 on the fins 11 along the second direction z and the projection of the third tube segment 123 on the fins 11 along the second direction z are respectively located at two sides of the openings; the second direction z is perpendicular to the first direction x and the air flow direction y.

Compared with two tube hole fins without holes, the two tube holes of the embodiment are provided with holes, so that the evaporator is easier to twist and deform in the processing process of the evaporator in an application scene, staggered arrangement is formed, and the processing is more convenient.

Further, compared with the method of processing two single-tube-hole fins to be rearranged and combined into the first fin 111 or the second fin 112, the method of processing two single-tube-hole fins in this embodiment has the advantages that the holes are formed between the two tube holes, and only one fin with two tube holes is needed to be processed, so that the cost is saved.

Further, compared with two tube hole fins without holes, the two tube holes are provided with holes, so that gaps are formed between the two tube holes, a gap channel for circulating air flow is increased, fin edge positions between the two tube holes of the fin can be increased, leading edge effects are brought, and heat exchange efficiency is improved.

Further, compared with the first fin 111 or the second fin 112 formed by processing the rearrangement combination of the two single-hole fins, the openings are arranged between the two holes in this embodiment, so that the contact area between the fin structure inside the evaporator and the air flow is increased, and the fin portions of the first opening 16 and the second opening 17 can also participate in the heat exchange process, so that the heat exchange efficiency is improved.

Optionally, the openings include a first opening and a second opening, and a first opening 16 is disposed between the two first pipe holes; a second opening 17 is provided between the two second tube holes.

Optionally, the fins 11 of the present embodiment are provided with openings, and the projection of the second tube segment 122 on the fins 11 along the second direction z covers the openings, or the projection of the first tube segment 121 on the fins 11 along the second direction z and the projection of the third tube segment 123 on the fins 11 along the second direction z are respectively located at two sides of the openings; the second direction z is perpendicular to the first direction x and the air flow direction y.

Compared with two tube hole fins without holes, the two tube holes of the embodiment are provided with holes, so that the evaporator is easier to twist and deform in the processing process of the evaporator in an application scene, staggered arrangement is formed, and the processing is more convenient.

Further, compared with the method of processing two single-tube-hole fins to be rearranged and combined into the first fin 111 or the second fin 112, the method of processing two single-tube-hole fins in this embodiment has the advantages that the holes are formed between the two tube holes, and only one fin with two tube holes is needed to be processed, so that the cost is saved.

Further, compared with two tube hole fins without holes, the two tube holes are provided with holes, so that gaps are formed between the two tube holes, a gap channel for circulating air flow is increased, fin edge positions between the two tube holes of the fin can be increased, leading edge effects are brought, and heat exchange efficiency is improved.

Further, compared with the first fin 111 or the second fin 112 formed by processing the rearrangement combination of the two single-hole fins, the openings are arranged between the two holes in this embodiment, so that the contact area between the fin structure inside the evaporator and the air flow is increased, and the fin portion of the first opening 16 or the second opening 17 can also participate in the heat exchange process, so that the heat exchange efficiency is improved.

Optionally, the openings include a first opening and a second opening, and a first opening 16 is disposed between the two first pipe holes; or a second opening 17 is provided between the two second tube holes.

Alternatively, the two first openings 16 of the present embodiment may be quadrangular.

Alternatively, the two second openings 17 of the present embodiment may be quadrangular.

Alternatively, the two first openings 16 of the present embodiment may be square.

Alternatively, the two second openings 17 of the present embodiment may be square.

In other embodiments, the number of first openings and the number of second openings are not limited.

In other embodiments, the shape of the openings may be other shapes, or the shape of the first opening may be different from the shape of the second opening.

Optionally, two first tube holes in the first fin 111 of the present embodiment are staggered along the air flow direction y in correspondence with two fin areas of the first fin 111 where the two first tube holes are located.

Compared with a first fin formed by combining two single-tube-hole fins, because two fin areas corresponding to two first tube holes in the first fin 111 of the embodiment are staggered along the airflow direction y, the front edge effect of the edge part of the area between the two tube holes of the first fin 111 can be increased, and the heat exchange efficiency is improved.

Optionally, two second tube holes in the second fin 112 of the present embodiment are staggered along the air flow direction y in correspondence to two fin areas of the second fin 112 where the two second tube holes are located.

Compared with a second fin formed by combining two single-tube-hole fins, because two fin areas corresponding to two second tube holes in the second fin 112 of the embodiment are staggered along the air flow direction y, the front edge effect of the edge part of the area between the two tube holes of the second fin 112 can be increased, and the heat exchange efficiency is improved.

Optionally, the fins 11 of the present embodiment include a plurality of second fin groups, and are arranged at intervals along the airflow direction y, the first tube segment 121 includes a plurality of first tube sub-segments, the third tube segment 123 includes a plurality of second tube sub-segments, and the plurality of second fin groups, the plurality of first tube sub-segments, and the plurality of second tube sub-segments are disposed in a one-to-one correspondence.

Because the plurality of second fin groups of this embodiment are arranged at intervals along the airflow direction y, the first tube segment 121 includes a plurality of first tube segments, and the third tube segment 123 includes a plurality of second tube segments, the contact area between the evaporator and the airflow can be increased, thereby improving the heat exchange amount and the heat exchange efficiency.

Alternatively, the fins 11 of the present embodiment include a plurality of first fins 111 arranged at intervals along the second direction z and a plurality of second fin groups arranged at intervals along the second direction z; the second direction z is perpendicular to the first direction x and the air flow direction y.

Because the fins are arranged at intervals along the second direction z to form the gaps extending along the air flow direction y, the air can flow through the evaporator in a larger flow space, the contact area between the pipe section and the air flow is increased, and the heat exchange efficiency is improved.

The application further provides an evaporator of another embodiment, as shown in fig. 2, and fig. 2 is a schematic structural diagram of an embodiment of the evaporator of the application. The difference between this embodiment and the embodiment of fig. 1 is that the first opening 21 between the two first tube holes is circular; the second opening 22 between the two second tube holes is circular.

Compared with quadrilateral open pores, the round open pore structure can increase fin edge parts between two tube holes of the fin, bring forward edge effect and improve heat dissipation effect.

The present application further proposes a first fin of another embodiment, as shown in fig. 3, and fig. 3 is a schematic structural view of another embodiment of the first fin of the present application. This embodiment differs from the embodiment of fig. 1 in that the first fin 111 further includes: the first heat dissipation portion 31 is connected to an end of the first opening 16, and is disposed at an angle with respect to a radial direction of the first opening 16.

Because the first fin 111 comprises the first heat dissipation part 31, the contact area between the first fin 111 and the air flow in the evaporator can be further increased, and the first fin 111 and the first heat dissipation part 31 at the first opening 16 can participate in the heat exchange process, so that the heat exchange efficiency is further improved; and the first fin 111 includes the first heat dissipation portion 31, can make the inside edge portion of first fin 111 of evaporimeter further increase, bring the leading edge effect, promote heat exchange quantity, further improve heat exchange efficiency.

Further, since the first heat dissipation portion 31 is connected to the end of the first opening 16 and is disposed at an angle with respect to the radial direction of the first opening 16, the first heat dissipation portion 31 is not bonded to the first opening 16 and the first fins 111, and in this way, the heat dissipation area of the first fins 111 can be increased, and the heat exchange efficiency can be improved.

Alternatively, the first heat dissipating portion 31 extends along a first plane, which is a perpendicular plane to the airflow direction y or a plane disposed at an angle to the perpendicular plane.

The above manner can enable the airflow to flow towards the first heat dissipation part 31, so that the airflow speed can be reduced, thereby enabling the heat dissipation part to exchange heat with the airflow better and improving the heat exchange efficiency.

In other embodiments, similar modifications may be made to the embodiment of fig. 2, and are not described here.

The present application further proposes a second fin of another embodiment, as shown in fig. 4, and fig. 4 is a schematic structural view of another embodiment of the second fin of the present application. This embodiment differs from the embodiment of fig. 1 in that the second fin 112 further includes: the second heat dissipation portion 41 is connected to an end of the second opening 17 and is disposed at an angle to a radial direction of the second opening 17.

Because the second fin 112 comprises the second heat dissipation part 41, the contact area between the second fin 112 and the air flow in the evaporator can be further increased, and the second fin 112 and the second heat dissipation part 41 at the second opening 17 can participate in the heat exchange process, so that the heat exchange efficiency is further improved; and the second fin 112 comprises the second heat dissipation part 41, so that the edge part of the second fin 112 in the evaporator can be further increased, leading edge effect is brought, heat exchange quantity is improved, and heat exchange efficiency is further improved.

Further, since the second heat dissipation portion 41 is connected to the end of the second opening 17 and is disposed at an angle with the radial direction of the second opening 17, the second heat dissipation portion 41 is a portion not attached to the second opening 17 and the second fins 112, and in this way, the heat dissipation area of the second fins 112 can be increased, and the heat exchange efficiency can be improved;

optionally, the second heat dissipating portion 41 extends along a first plane, where the first plane is a perpendicular plane to the airflow direction y or a plane disposed at an angle to the perpendicular plane.

The above manner can enable the airflow to flow towards the second heat dissipation portion 41, so that the airflow speed can be reduced, thereby enabling the heat dissipation portion to exchange heat with the airflow better and improving the heat exchange efficiency.

In other embodiments, a first heat sink may be provided at the end of the first aperture while a second heat sink may be provided at the end of the second aperture.

By the mode, on one hand, the contact area between the first fin inside the evaporator and the air flow can be further increased, and the first fin and the first heat dissipation part at the first opening can participate in the heat exchange process, so that the heat exchange efficiency is further improved; the first fin comprises a first heat dissipation part, so that the edge part of the first fin in the evaporator can be further increased, leading edge effect is brought, heat exchange quantity is improved, and heat exchange efficiency is further improved; on the other hand, the contact area between the second fin inside the evaporator and the air flow can be further increased, and the second fin and the second heat dissipation part at the second opening can participate in the heat exchange process, so that the heat exchange efficiency is further improved; the second fin comprises a second heat dissipation part, so that the edge part of the second fin in the evaporator can be further increased, leading edge effect is brought, heat exchange quantity is improved, and heat exchange efficiency is further improved;

In other embodiments, the shape of the heat sink is not limited.

In other embodiments, the relative positions of the heat dissipation portion and the opening are not limited.

In other embodiments, similar modifications may be made to the embodiment of fig. 2, and are not described here.

The application further provides an evaporator of another embodiment, as shown in fig. 5, and fig. 5 is a schematic structural diagram of an embodiment of the evaporator of the application. The present embodiment differs from the embodiment of fig. 1 in that the first fin 111 includes first sub-fins 51 and second sub-fins 52 arranged at intervals along the first direction x. One end of the second tube segment 122 is disposed on the first sub-fin 51, and the other end of the second tube segment 122 is disposed on the second sub-fin 52.

Compared with the embodiment of fig. 1, the first fin 111 of the present embodiment includes the first sub-fins 51 and the second sub-fins 52 arranged at intervals along the first direction x. Because the first sub-fins 51 and the second sub-fins 52 are not connected by the corresponding fin structures, in an application scene, the evaporator is easier to twist and deform in the processing process of the evaporator to form staggered arrangement, so that the processing is more convenient.

Optionally, the second fin 112 includes a third sub-fin 53 and a fourth sub-fin 54 disposed at intervals along the first direction x, the first tube segment 121 is disposed on the third sub-fin 53, and the third tube segment 123 is disposed on the fourth sub-fin 54.

Compared with the embodiment of fig. 1, the second fin 112 of the present embodiment includes the third sub-fin 53 and the fourth sub-fin 54 arranged at intervals along the first direction x. Because the third sub-fin 53 and the fourth sub-fin 54 are not connected by the corresponding fin structures, in an application scene, the evaporator is easier to twist and deform in the processing process of the evaporator to form staggered arrangement, so that the processing is more convenient.

The application further provides a refrigerator comprising the evaporator.

In other embodiments, the evaporator of the present application can also be used in other heat exchange devices.

Compared with the prior art, the evaporator provided by the application comprises the fins and the heat exchange tube monomers arranged on the fins, and the heat exchange tube monomers are integrally formed single tubes, so that a welding process is not needed between tube sections, the problems of heat exchange medium leakage and the like caused by multi-tube welding can be solved, the heat exchange efficiency can be improved, and the cost is saved. Further, the first pipe section and the third pipe section are arranged at intervals along the first direction, so that air can flow through the evaporator in a larger flowing space, the contact area between the pipe section and the air flow can be increased, and the heat exchange efficiency is improved. Further, the distance between the first pipe section and the second pipe section is different from the distance between the other end of the first pipe section and the other end of the third pipe section, so that the first pipe section is staggered from the first pipe section in the first direction, the blocking area between the first pipe section and the second pipe section in the first direction can be reduced, the heat exchange area of the first pipe section to the air flow can be increased, and the heat exchange efficiency can be improved. Further, the distance between the first pipe section and the second pipe section is different from the distance between the other end of the first pipe section and the other end of the third pipe section, and the distance between the first pipe section and the second pipe section is different from the distance between the first pipe section and the third pipe section, so that the first pipe section and the third pipe section are staggered, the blocking area between the third pipe section and the second pipe section is reduced, the heat exchange area of the third pipe section to the air flow is increased, and the heat exchange efficiency is improved. Therefore, the application can improve the problems of leakage of heat exchange media and the like caused by multi-pipe welding, can improve the heat exchange efficiency and saves the cost.

The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.

Claims (13)

1. An evaporator for the heat-dissipating type of a heat-dissipating type evaporator, characterized by comprising the following steps:

A fin;

The heat exchange tube monomer is arranged on the fin and comprises a first tube section, a second tube section and a third tube section, two ends of the second tube section are respectively connected with the first tube section and the third tube section, the first tube section and the third tube section extend towards the same side of the second tube section, and the first tube section and the third tube section are arranged at intervals along a first direction;

The distance between one end of the first pipe section connected with the second pipe section and one end of the third pipe section connected with the second pipe section along the first direction is unequal to the distance between the other end of the first pipe section and the other end of the third pipe section along the first direction;

wherein the first direction is perpendicular to the air flow direction.

2. The evaporator of claim 1, wherein the fins are provided with openings, and wherein the projections of the second tube sections onto the fins in the second direction cover the openings, and/or wherein the projections of the first tube sections onto the fins in the second direction and the projections of the third tube sections onto the fins in the second direction are located on both sides of the openings, respectively;

wherein the second direction is perpendicular to the first direction and the airflow direction.

3. The evaporator of claim 2, wherein the fins further comprise: and the heat dissipation part is connected with the end part of the opening and is arranged at an included angle with the radial direction of the opening.

4. An evaporator according to claim 3 wherein the heat radiation portion extends along a first plane which is a perpendicular plane to the airflow direction or a plane disposed at an angle to the perpendicular plane.

5. The evaporator of claim 1, wherein the first tube segment is at least partially offset from the third tube segment along the direction of airflow.

6. The evaporator of claim 2, wherein the fins comprise:

a first fin;

The second fin group comprises two second fins which are arranged on the same side of the first fin and are arranged with the first fin at intervals along the air flow direction;

The second pipe section is arranged on the first fin, one end of the first pipe section connected with the second pipe section and one end of the third pipe section connected with the second pipe section are arranged on the second fin close to the first fin, and the other end of the first pipe section and the other end of the third pipe section are arranged on the other second fin;

the second fins are provided with two second pipe holes, two ends of the first pipe section are respectively arranged in one second pipe hole of the two second fins, and two ends of the third pipe section are respectively arranged in the other second pipe hole of the two second fins;

a first distance along the first direction between the two second tube holes on the second fin adjacent to the first fin is different from a second distance along the first direction between the two second tube holes on the other second fin.

7. The evaporator of claim 6, wherein the first distance is less than the second distance.

8. The evaporator of claim 7, wherein the first fin has two first tube holes, two ends of the second tube segment are disposed in the two first tube holes of the first fin, respectively, and a third distance between the two first tube holes is greater than the first distance.

9. The evaporator of claim 6, wherein said two first tube holes are staggered in said air flow direction and said two second tube holes of said second fin are staggered in said air flow direction.

10. The evaporator of claim 6, wherein the openings comprise a first opening and/or a second opening, the first opening being disposed between the two first tube holes; and/or the second opening is arranged between the two second pipe holes.

11. The evaporator as recited in any one of claims 6 to 10, wherein said fins include a plurality of second fin groups arranged at intervals in said air flow direction, said first tube segment includes a plurality of first tube sub-segments, said third tube segment includes a plurality of second tube sub-segments, and said plurality of second fin groups, said plurality of first tube sub-segments, and said plurality of second tube sub-segments are arranged in one-to-one correspondence.

12. The evaporator as recited in claim 3, wherein said fins include a plurality of said first fins disposed at intervals along said second direction and a plurality of said second fin groups disposed at intervals along said second direction;

wherein the second direction is perpendicular to the first direction and the airflow direction.

13. A refrigerator comprising the evaporator according to any one of claims 1 to 11.