CN201429359Y - Fin structure for parallel flow evaporator - Google Patents

Abstract

The utility model relates to a fin structure for a parallel flow evaporator, which is characterized by comprising a first fin group, a second fin group, a third fin group and a fourth fin group whichare arranged in sequence. Planes are respectively and transitionally connected between the first fin group and the second fin group as well as between the third fin group and the fourth fin group; a fin white edge is arranged between the second fin group and the third fin group; and the first fin group and the second fin group with identical angles are opposite to the third fin group and the fourth fin group with identical angles. The utility model has the advantages of simple structure, convenient mould manufacture of the fin, less wind resistance of the fin through CFD analysis and experimental verification and high heat exchange efficiency due to the reason that the fin is higher than a flat tube.

Description

A kind of parallel-flow evaporator fin structure

Technical field

The utility model relates to a kind of parallel-flow evaporator fin structure, is used for the heat radiation of automotive air-conditioning system refrigerant, belongs to the technical field of structures of evaporimeter heat radiation part.

Background technology

At present, raising along with people's living condition, people are to comfort requirement is more and more higher by bus, so evaporimeter is as the critical piece of HVAC in the automotive air-conditioning system, be required to compact, lightweight, the exploitation of high-performance direction, and the concurrent flow structure can reach this requirement, so the evaporimeter that present automobile is used begins to adopt this structure, and fin carries out playing in the heat exchange important effect at evaporimeter.

As shown in Figure 1, for parallel-flow evaporator fin structure commonly used, in a symmetrical arrangement in the fins set that is positioned at the C left and right sides, plane, the fin angle A of both sides is opposite in while every group of fins set, distance between two fins is B, and the length of whole fin structure is D simultaneously.The problem that this structure exists is that windage is bigger.

Summary of the invention

The purpose of this utility model provides the less fin structure of a kind of windage.

In order to achieve the above object, the technical solution of the utility model has provided a kind of parallel-flow evaporator fin structure, it is characterized in that, comprise first fins set, second fins set, the 3rd fins set and the 4th fins set that are arranged in order, between first fins set and second fins set and between the 3rd fins set and the 4th fins set respectively transition be connected with the plane, be provided with the fin white edge between second fins set and the 3rd fins set, the 3rd fins set that first fins set that angle is identical and second fins set are identical with angle and the 4th fins set direction are opposite.

Further, described first fins set and described the 4th fins set are protruded flat tube respectively, and the distance of protruding flat tube is-1～3mm.The fin window of described second fins set and described the 3rd fins set protrudes flat tube respectively, and the distance of protruding flat tube is-1～6mm.The angle ranging from 33～42 °, the fin spacing of windowing is 0.6～1.2mm in every group of fins set, and the length of described fin white edge is 0～12mm, and the length on described plane is 0～1.2mm.

The utility model has the advantages that: mould simple in structure, fin is easily manufactured; Analyze and the test explanation by CFD, the fin windage of this structure is less, because the fin and the fin window of this structure are higher than flat tube, thereby has also improved heat exchange efficiency.

Description of drawings

Fig. 1 is parallel-flow evaporator fin structure figure commonly used;

A kind of parallel-flow evaporator fin structure figure that Fig. 2 provides for the utility model;

Structure chart after the parallel-flow evaporator that Fig. 3 provides for the utility model is used fin and flat tube is cooperated;

Fig. 4 is the schematic diagram of parallel-flow evaporator.

The specific embodiment

Specify the utility model below in conjunction with embodiment.

Embodiment 1

As shown in Figure 2, a kind of parallel-flow evaporator fin structure figure that provides for the utility model, comprise the first fins set E, the second fins set F, the 3rd fins set G and the 4th fins set H that are arranged in order, between the first fins set E and the second fins set F and between the 3rd fins set G and the 4th fins set H respectively transition be connected with plane T, be provided with fin white edge C between the second fins set F and the 3rd fins set G, the 3rd fins set G that the first fins set E that angle A is identical and the second fins set F are identical with angle A and the 4th fins set H direction are opposite.The first fins set E is identical with the length of described the 4th fins set H, the second fins set F is identical with the length of described the 3rd fins set G, and the first fins set E can be identical with length between the second fins set F and the 3rd fins set G and the 4th fins set H, also can be inequality.

As shown in Figure 3, the parallel-flow evaporator that provides for the utility model is with fin and the structure chart after flat tube cooperates, the first fins set E and described the 4th fins set H protrude flat tube 1 respectively, and I is for protruding the distance of flat tube 1, and K is the distance that the fin window between two flat tubes allows to protrude flat tube.If at parallel-flow evaporator shown in Figure 4, determine that optimum value is angle A=35 °, the length D=38mm of whole fin structure, length=0.75mm between two fins apart from B=plane T, length=1.5mm of fin white edge C, length=8.25mm of the length of the length of the length of the first fins set E=second fins set F=the 3rd fins set G=the 4th fins set H, I=0mm, the fin window protrudes the length K=2.25mm of flat tube.

Claims (5)

1. parallel-flow evaporator fin structure, it is characterized in that, comprise first fins set (E) that is arranged in order, second fins set (F), the 3rd fins set (G) and the 4th fins set (H), between first fins set (E) and second fins set (F) and between the 3rd fins set (G) and the 4th fins set (H) respectively transition be connected with plane (T), be provided with fin white edge (C) between second fins set (F) and the 3rd fins set (G), the 3rd fins set (G) and the 4th fins set (H) direction that first fins set (E) that angle (A) is identical and second fins set (F) are identical with angle (A) are opposite.

2. a kind of parallel-flow evaporator fin structure as claimed in claim 1 is characterized in that, described first fins set (E) is identical with the length of described the 4th fins set (H), and described second fins set (F) is identical with the length of described the 3rd fins set (G).

3. a kind of parallel-flow evaporator fin structure as claimed in claim 1 is characterized in that, described first fins set (E) is protruded flat tube (1) respectively with described the 4th fins set (H), and the distance (I) of protruding flat tube (1) is-1～3mm.

4. a kind of parallel-flow evaporator fin structure as claimed in claim 1, it is characterized in that, the fin window of the fin window of described second fins set (F) and described the 3rd fins set (G) protrudes flat tube (1) respectively, and the distance (K) of protruding flat tube (1) is-1～6mm.

5. as each described a kind of parallel-flow evaporator fin structure in the claim 1 to 4, it is characterized in that, described angle (A) is 33～42 °, the fin spacing (B) of windowing is 0.6～1.2mm in every group of fins set, the length of described fin white edge (C) is 0～12mm, and the length of described plane (T) is 0～1.2mm.

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