CN204923995U - Can prevent microchannel heat exchanger of flat pipe of external damage - Google Patents

Abstract

A microchannel heat exchanger capable of preventing external forces from destroying flat tubes includes a plurality of flat tubes and fins for heat dissipation arranged between adjacent flat tubes, and a plurality of fins for refrigerant flow are arranged in the flat tubes. microchannel. The fin protrudes from the adjacent flat tube on at least one side in the width direction of the flat tube.

Description

Microchannel heat exchanger capable of preventing damage to flat tubes by external forces

technical field

The utility model relates to a heat exchanger for a refrigerant circulation system, in particular to a microchannel heat exchanger.

Background technique

The micro-channel heat exchanger includes two collectors arranged in parallel, and a plurality of flat tubes are fixedly connected between the two collectors arranged in parallel, and a plurality of micro-channels are arranged in the flat tubes, and the channel equivalent diameter is 100-1000 μm. Fins are arranged between two adjacent flat tubes. The micro-channel heat exchanger is made of aluminum, and the aluminum micro-channel flat tube does not have enough strength to prevent external force damage during assembly, transportation and installation. Damage to the flat tubes will result in leakage of the refrigerant and require additional time and cost to repair.

Utility model content

The purpose of the utility model is to provide a microchannel heat exchanger capable of preventing external forces from destroying flat tubes.

An embodiment of the present invention provides a microchannel heat exchanger capable of preventing external forces from destroying flat tubes, including a plurality of flat tubes and fins for heat dissipation arranged between adjacent flat tubes. A plurality of microchannels for refrigerant flow are provided. The fin protrudes from the adjacent flat tube on at least one side in the width direction of the flat tube.

In a preferred embodiment, the portion of the fin protruding from the flat tube on the at least one side has a longitudinal protrusion which covers the flat tube in the thickness direction of the flat tube.

In a preferred embodiment, the fins are arranged in a wave shape, and the longitudinal protrusions are arranged on the crest side or the trough side of the fins.

In a preferred embodiment, the fins are arranged in a wave shape, and the outer sides of the crests and troughs of the fins are flat in the width direction.

In a preferred embodiment, the fins respectively protrude from the adjacent flat tubes on both sides in the width direction.

In a preferred embodiment, the fin density is 10 to 30 fins per inch.

In a preferred embodiment, the plurality of flat tubes are arranged parallel to each other, and adjacent flat tubes are separated by a certain distance.

According to the microchannel heat exchanger of the present invention, since the fins protrude from the adjacent flat tubes on at least one side of the width direction, external forces are avoided from being applied to the flat tubes, so the microchannel flat tubes can be prevented from being damaged, reducing the Maintenance costs.

Description of drawings

The above and other features, properties and advantages of the present utility model will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, wherein:

Fig. 1 is a partial perspective view of a microchannel heat exchanger in an embodiment of the present invention.

Fig. 2 is a front view of the microchannel heat exchanger shown in Fig. 1 .

Fig. 3 is a partial side view of the microchannel heat exchanger in another embodiment of the present invention.

FIG. 4 is a perspective view of the heat exchange fin shown in FIG. 3 .

Fig. 5 is a partial side view of the microchannel heat exchanger shown in Fig. 1 .

FIG. 6 is a perspective view of the heat exchange fin shown in FIG. 5 .

Fig. 7 is a partial side view of the micro-channel heat exchanger in another embodiment of the present invention.

FIG. 8 is a perspective view of the heat exchange fin shown in FIG. 7 .

Fig. 9 is a partial side view of the microchannel heat exchanger in another embodiment of the present invention.

FIG. 10 is a perspective view of the heat exchange fin shown in FIG. 9 .

Detailed ways

The utility model will be further described below in conjunction with specific embodiments and accompanying drawings, and more details have been set forth in the following description so as to fully understand the utility model, but the utility model can obviously be in many other ways different from this description To implement, those skilled in the art can make similar promotion and deduction according to the actual application situation without violating the connotation of the utility model, so the content of this specific embodiment should not limit the protection scope of the utility model.

Fig. 1, Fig. 2 and Fig. 5, Fig. 6 have shown an embodiment of the present utility model, and it should be noted that these and follow-up other accompanying drawings are all only as examples, and it is not drawn according to the condition of equal scale, and It should not be taken as a limitation to the protection scope of the actual requirements of the utility model.

As shown in Figures 1 and 2, the microchannel heat exchanger capable of preventing external forces from destroying flat tubes according to the present invention includes a plurality of flat tubes 10 and fins 11 for heat dissipation arranged between adjacent flat tubes 10, It can be understood by those skilled in the art that the microchannel heat exchanger further includes two headers, which are respectively arranged at both ends of the flat tube 10 . The flat tube 10 is provided with a plurality of microchannels 101 for the refrigerant to flow, and the fin 11 protrudes from the adjacent flat tube 10 on the right side in the width direction as shown in FIG. 5 , and the protruding width is w. The fins 11 are arranged in a wave shape, and have a longitudinal protrusion 113 at the bottom 110A contacting the flat tube 10. The length of the longitudinal extension of the longitudinal protrusion 113 almost exceeds or approaches the thickness of the flat tube 10, and the longitudinal direction is approximately perpendicular to the plane of the flat tube 10. The direction includes the direction in which the fins 11 are inclined relative to the plane of the flat tube due to the need for wavy extension. The forming of the longitudinal protrusion 113 can be formed by applying material to the outside of the trough of the fin on the basis of the existing fin, and after removing part of the material, the bottom 110 of the fin 11 is formed. The fins 11 with the longitudinal protrusions 113 can also eliminate the need for a material removal process, but the longitudinal protrusions 113 are considered at the very beginning of the integral formation of the fins 11 . The longitudinal protrusion 113 protrudes longitudinally from the position where the fin 11 protrudes from the right side of the flat tube 10, so that from a side view, the fin 11 surrounds the entire flat tube 10 on the right side, so that foreign objects can be prevented from contacting the flat tube 10. Prevent the flat tube 10 from being damaged by external force.

The flat tube 10 is arranged horizontally in the figure, and in other embodiments, it can also be arranged vertically, or arranged in other directions.

The fins 11 are wavy in the figure. In other embodiments, corresponding to one wavy fin, a plurality of independent plate-shaped fins can be arranged perpendicular to the flat tube, or fins of other shapes can be arranged on the flat tube 10 superior.

The longitudinal protrusion 113 is located at the bottom side of the fin 11 in the figure. In other embodiments, the longitudinal protrusion can also be provided at the bottom side of the fin 11 , that is, the longitudinal protrusion is provided at the crest 112 .

On the basis of the foregoing, further adjust the dimension D shown in Figure 2, the density of the fins 11 is 10 to 30 per inch, so that the fins 11 are arranged more tightly, and the flat tube 10 can be better prevented from being damaged by external force .

Fig. 3 and Fig. 4 show another embodiment of the present utility model, and this embodiment continues to use the component number and part content of previous embodiment, wherein adopts identical label to represent identical or similar component, and omits selectively Description of the same technical content. For the description of the omitted part, reference may be made to the foregoing embodiments, and this embodiment will not be repeated. The fins 11 respectively protrude from the flat tube 10 on both sides of the width direction of the flat tube 10, and respectively have longitudinal protrusions 113 on both sides of the bottom 110B, the two longitudinal protrusions 113 and the bottom 110B receive the flat tube 10 in a groove structure, The left and right sides of the flat tube 10 are covered by the longitudinal protrusions 113 , so it can better prevent foreign objects from contacting the flat tube 10 and prevent the flat tube 10 from being damaged by external force. In addition, the fins 11 can be prepositioned relatively quickly on the flat tube 10 before being welded to the flat tube 10 .

Fig. 7 and Fig. 8 have shown another embodiment of the present utility model, likewise, this embodiment continues to use the element label and part content of preceding embodiment, wherein adopt identical label to represent identical or similar element, and optional The description of the same technical content is omitted. For the description of the omitted part, reference may be made to the foregoing embodiments, and this embodiment will not be repeated. The fins 11 shown in FIGS. 7 and 8 do not have longitudinal protrusions, and only protrude in the width direction of the flat tube 10 on the right side. The width direction of the fins 11 is flat, so that the fins 11 are easy to manufacture, even if there is no longitudinal protrusion, but because the fins 11 protrude by a width w relative to the flat tube 10 in the width direction, in most cases, it can effectively prevent the external force from destroying the flat tube 10 .

Fig. 9 and Fig. 10 have shown another embodiment of the present utility model, still the same, this embodiment continues to use the component number and part content of preceding embodiment, wherein adopt identical label to represent identical or similar component, and select Explanation of the same technical content is omitted. For the description of the omitted part, reference may be made to the foregoing embodiments, and this embodiment will not be repeated. The fins 11 shown in FIGS. 9 and 10 do not have longitudinal protrusions, and only protrude respectively in the width direction of the flat tube 10 on the left and right sides. The protrusion width is w, and the side of the fin 11 that contacts the flat tube 10 is in the The width direction of the tube 10 is flat, so that the fins 11 are easy to manufacture. Even if there is no longitudinal protrusion, because the fins 11 protrude by a width w relative to the flat tube 10 in the width direction, in most cases, external forces can effectively prevent the flat tube from being damaged. Tube 10.

Unless otherwise defined, all technical terms used in the foregoing description have the same meanings as commonly understood by a person of ordinary skill in the art. Specific methods and devices are described in this application, but any methods and materials similar or equivalent to those described in the preceding disclosure can be used in the practice of the present technology. While implementations of the techniques have been described in considerable detail and by way of illustration, the illustration is for clarity of understanding only and is not intended to be limiting. Having used various terms in the description to convey an understanding of the technology, it is understood that the meaning of the various terms extends to common linguistic or grammatical variations or forms of the various terms. It should also be understood that when a term refers to a device or equipment, the term or name is provided as a contemporary example, and the technical steps are not limited by the scope of the text. The foregoing terms are to be understood as having been described by present contemporary terminology which may reasonably be understood as derivatives of the contemporary terminology or the designation of a subset of the system encompassed by the contemporary terminology. Furthermore, any one or more features of any embodiment of the technology may be combined with any one or more other features of any embodiment of the technology without departing from the scope of the disclosed technology. Still further, it should be understood that the technology is not limited to the embodiments that have been set forth for purposes of illustration, but that the technology is defined only by a fair reading of the claims appended to this patent application, including the rights to each element of the technology. enjoy the same effect throughout the scope. Therefore, although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the utility model. Revise. Therefore, any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model that do not deviate from the technical solution of the utility model all fall within the scope of protection defined by the claims of the utility model.

Claims (5)

1. can prevent the micro-channel heat exchanger of outside destroy flat tube, the heat transmission fin comprising multiple flat tube and arrange between adjacent described flat tube, many the microchannels for flow of refrigerant are provided with in described flat tube, it is characterized in that, its adjacent described flat tube given prominence to by described fin along at least one side of described flat tube width, the part of giving prominence to described flat tube in described at least one side of described fin has longitudinal teat, and described longitudinal teat covers described flat tube at the thickness direction of described flat tube.

2. micro-channel heat exchanger as claimed in claim 1, is characterized in that, described fin undulate is arranged, described longitudinal teat is arranged on crest side or the trough side of described fin.

3. micro-channel heat exchanger as claimed in claim 1 or 2, is characterized in that, described fin gives prominence to its adjacent described flat tube respectively in the both sides of width.

4. micro-channel heat exchanger as claimed in claim 1 or 2, it is characterized in that, fin density is per inch is 10 to 30.

5. micro-channel heat exchanger as claimed in claim 1, it is characterized in that, described multiple flat tube is set parallel to each other, and adjacent flat tube is spaced a distance.