CN201983687U

CN201983687U - Liquid collection tube structure for parallel flow evaporator

Info

Publication number: CN201983687U
Application number: CN2011200677428U
Authority: CN
Inventors: 卢辉
Original assignee: WEILE AUTOMOBILE AIR CONDITIONER CO Ltd SHANGHAI
Current assignee: WEILE AUTOMOBILE AIR CONDITIONER CO Ltd SHANGHAI
Priority date: 2011-03-15
Filing date: 2011-03-15
Publication date: 2011-09-21
Anticipated expiration: 2021-03-15

Abstract

The utility model provides a liquid collection tube structure for a parallel flow evaporator, which comprises a left liquid collection tube component and a right liquid collection tube component; flat tubes for refrigerant to pass through is arranged between the left liquid collection tube component and the right liquid collection tube component; fins are arranged between the two adjacent flat tubes; the left liquid collection tube component and the right liquid collection tube component are respectively provided with a row of slots for the flat tubes to be inserted in; and the liquid collection tube structure for the parallel flow evaporator is characterized in that small bulges are respectively arranged between the two adjacent slots on the left liquid collection tube component and the right liquid collection tube component; point contact, linear contact or gaps T are formed between the fins and the small bulges, wherein T is more than or equal to 0 and less than or equal to 5mm. The liquid collection tube structure for the parallel flow evaporator maximizes the radiating area of the parallel flow evaporator, so that the heat exchange performance and the product pass rate are improved.

Description

Parallel-flow evaporator collector tube structure

Technical field

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

Background technology

Recently, car newly developed requires more and more highlyer to the refrigeration of air-conditioning, but require the air-conditioning system compact conformation, and is in light weight, so it is more and more selected in automotive air-conditioning system to have an evaporimeter of concurrent flow structure of this function.In parallel-flow evaporator, collector tube is that cold-producing medium is gathered, and shunts again, and it carries out playing in the heat exchange important effect at evaporimeter.

As shown in Figures 1 and 2, be parallel-flow evaporator structure commonly used, outward appearance and qualification rate in order to ensure product, so between collector tube and fin, will leave a gap T, because the existence of this gap T, reduce area of dissipation, can cause under same wind speed this gap T to flow out air quantity in addition and flow out air quantity big (popular saying have herein leak out) in than radiating fin, caused the performance of heat exchange to reduce.

Summary of the invention

The purpose of this utility model provides a kind of parallel-flow evaporator area of dissipation maximization of making, thereby improves heat exchange performance and improve the structure of product percent of pass.

In order to achieve the above object, the technical solution of the utility model has provided a kind of parallel-flow evaporator collector tube structure, comprise left collector tube assembly and right liquid collecting tube assembly, between left collector tube assembly and right liquid collecting tube assembly, be provided with and hold the flat tube that cold-producing medium passes through, between adjacent two flat tubes, be provided with fin, on left collector tube assembly and right liquid collecting tube assembly, all have one and arrange the groove that is used to insert flat tube, it is characterized in that: on the part between two adjacent grooves, all be formed with a little convex closure on left collector tube assembly and the right liquid collecting tube assembly, between fin and the little convex closure or form that some contact or line contacts, perhaps be formed with gap T, wherein, 0≤T≤5mm.

Further, the contact area of described little convex closure and described fin is not more than 25mm ²

The utility model has the advantages that:

1. simple in structure, part is easily manufactured;

2. the little convex closure of collector tube contacts with point or with line, small area with fin, can prevent that collector tube and fin contact-making surface are excessive and when soldering, make the fin fusing, it has improved the outward appearance of evaporimeter, and the qualification rate of product is increased substantially, and reaches the purpose that reduces cost;

3. the little convex closure of collector tube contacts with fin, and fin just can directly not touch the junction of collector tube and flat tube, just can prevent that collector tube and flat tube failure welding may occur owing to touch fin when soldering causes the phenomenon of coolant leakage to occur;

4. designed little convex closure between the groove on the collector tube, it has improved the intensity of collector tube, so this little convex closure can reduce the wall thickness of collector tube in right amount, makes the weight saving of product, has also reduced cost simultaneously;

5. when assembling, can allow fin directly to contact, the assembling of evaporimeter is oversimplified with the little convex closure of collector tube;

6. pack in the air-conditioning system when evaporator core, and needn't consider that the collector tube of evaporator core and the excesssive gap between fin need adopt modes such as pasting sponge to prevent leaking out; Outside under the condition just as sample, it has increased the area of dissipation of evaporimeter, has reached raising evaporimeter heat exchange efficiency purpose in addition.

Description of drawings

Fig. 1 is existing parallel-flow evaporator structural representation;

Fig. 2 is the enlarged diagram of I part among Fig. 1;

Fig. 3 is for having adopted parallel-flow evaporator structural representation of the present utility model;

Fig. 4 is the plane of Fig. 3;

Fig. 5 is the enlarged diagram of I part among Fig. 4;

Fig. 6 is little convex closure schematic diagram.

The specific embodiment

Provide a preferred forms of the present utility model below in conjunction with accompanying drawing.

As shown in Figure 3; for adopting parallel-flow evaporator of the present utility model; comprise left collector tube assembly 12 and right liquid collecting tube assembly 3; be formed with the import 1 of cold-producing medium and the outlet 2 of cold-producing medium in the end of right liquid collecting tube assembly 3; in left collector tube assembly 12, be provided with the restrictor ring 13 of control refrigerant flow and flow velocity; between left collector tube assembly 12 and right liquid collecting tube assembly 3, be provided with and hold the flat tube 6 that cold-producing medium passes through; have a row in order to insert the groove 18 of flat tube 6 at left collector tube assembly 12 and right liquid collecting tube assembly 3; between adjacent two flat tubes 6, be provided with fin 10; be provided with above the flat tube 6 that is positioned at left collector tube assembly 12 and right liquid collecting tube assembly 3 tops the protection fin 10 on side plate 16; below the flat tube 6 that is positioned at left collector tube assembly 12 and right liquid collecting tube assembly 3 bottoms, be provided with the following side plate 9 of protection fin 10, left collector tube assembly 12 tops; blanking cover 15 all is equipped with in the bottom of bottom and right liquid collecting tube assembly 3.

Extremely shown in Figure 6 as Fig. 4, between each groove 18 of right liquid collecting tube assembly 3, left collector tube assembly 12, be equipped with little convex closure 4, it can avoid the head of fin 10 to run into groove 18, and after flat tube 6 entered in the groove 18 of right liquid collecting tube assembly 3, left collector tube assembly 12, little convex closure 4 partly or entirely contacted with point or with line or with the form of face respectively on two end surfaces that allow one group of fin 10 and the collector tube.Also can form gap T between little convex closure 4 and the fin 10, as long as gap T is in the 0-5mm scope.After having loaded onto blanking cover 15, upward side plate 16, side plate 9 and import 1 down, exporting 2, just mean the assembling of having finished parallel flow evaporator core, this core body can be sent into soldering oven welds, because the existence of little convex closure 4, guaranteed that fin 10 contacts with collector tube but 100% do not melted, thereby make evaporimeter can accomplish the area of dissipation maximum, the qualification rate of production is supreme good again.

Claims

1. parallel-flow evaporator collector tube structure, comprise left collector tube assembly (12) and right liquid collecting tube assembly (3), between left collector tube assembly (12) and right liquid collecting tube assembly (3), be provided with and hold the flat tube (6) that cold-producing medium passes through, between adjacent two flat tubes (6), be provided with fin (10), on left collector tube assembly (12) and right liquid collecting tube assembly (3), all have a row and be used to insert the groove (18) of flat tube (6), it is characterized in that: on the part that is positioned on left collector tube assembly (12) and the right liquid collecting tube assembly (3) between adjacent two grooves (18), all be formed with a little convex closure (4), between fin (10) and the little convex closure (4) or form that some contact or line contacts, perhaps be formed with gap T, wherein, 0≤T≤5mm.

2. a kind of parallel-flow evaporator collector tube structure as claimed in claim 1 is characterized in that: described little convex closure (4) is not more than 25mm with the contact area of described fin (10) ²