CN202420037U

CN202420037U - Wound tube type evaporator

Info

Publication number: CN202420037U
Application number: CN201120576286XU
Authority: CN
Inventors: 毛庆成; 周伟洪; 胡哲; 游飞越
Original assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-09-05
Anticipated expiration: 2021-12-31

Abstract

The utility model belongs to the technical field of refrigerators and particularly to a wound tube type evaporator. The wound tube type evaporator is a D-shaped tube type evaporator (2) which is composed of a flat surface and a circular arc surface; and the flat surface, wherein the flat surface is tightly close to the outer side of a freezing liner (1) of the refrigerator. According to the wound tube type evaporator, disclosed by the utility model, the D-shaped tube type evaporator 2 is fixed on the freezing liner 1 of the refrigerator through a special wound tube device, so that contact area of the tube and the liner can be enlarged and heat transfer efficiency of the evaporator can be improved without changing liner structure and evaporator layout of the conventional refrigerator and reducing the speed of the wound tube; meanwhile, stress to the liner is reduced; quality problem caused by pipe track is controlled efficiently, thickness of the liner is reduced and the purpose of reducing cost is realized.

Description

A kind of around tubular evaparator

Technical field

The utility model belongs to the refrigerator technical field, and is particularly a kind of around tubular evaparator.

Background technology

At present, refrigerating chamber adopts and to freeze around tubular evaparator in the direct cooling refrigerator of some, promptly the metal circular pipe of aluminum or aluminum alloy material through specific around tube apparatus around the outside to freezing inner bag, and paste aluminium foil and fix pipeline.Because around tubular evaparator and inner bag surface is the mode that line contacts, behind the stickup aluminium foil, there is bigger space between aluminium foil, round tube, the inner bag inevitably; And foamed material can't be filled this space; So after the casing refrigeration, cause the case courage because of the trace phenomenon appears managing in the effect of alveolar layer stress owing to expand with heat and contract with cold easily, cause case courage outward appearance defective; In order to prevent the appearance of this type pipe trace situation, need increase by 15% ~ 20% to inner bag thickness; And; This mainly the heat transfer with the few part aluminum pipe that contacts with inner bag with aluminium foil around tubular evaparator is main; Its heat transfer efficiency is lower, if improve heat transfer efficiency, common way is the length that increases the pipeline area or increase pipe; Can increase the material of evaporimeter, the consumption of aluminium foil like this, cause the rising of product cost.

The utility model content

The problem that the utility model will solve is not change under the situation of freezing inner-tube structure and evaporimeter layout of existing direct cooling refrigerator, provides a kind of heat transfer efficiency higher, can reduce liner material, the saving cost around tubular evaparator.

For realizing above-mentioned purpose, the technical scheme of the utility model is: a kind of around tubular evaparator, by the D shape pipe evaporator that flat horizontal surface and arc surface constitute, its flat horizontal surface is close to the freezing inner bag of the refrigerator outside.

Paste aluminium foil on the said D shape pipe evaporator outer surface.

Said D shape pipe evaporator is processed for the aluminum or aluminum alloy material.

Compared with prior art, the utlity model has following beneficial effect:

The utility model D shape pipe evaporator is not changing current refrigerator inner-tube structure, evaporimeter layout and is not reducing under the situation of pipe speed; Increase pipe and inner bag contact area; Improve the heat transfer efficiency of evaporimeter, reduce simultaneously inner bag stress, effectively control is because the quality problems that the pipe trace causes; Reduce inner bag thickness, reach and fall the cost purpose.

Description of drawings

Fig. 1 is the structural representation of the utility model around tubular evaparator.

Fig. 2 is the schematic cross-section of the utility model around tubular evaparator.

Fig. 3 is a moulding frock die head sketch map.

Fig. 4 is the tube wrapping device sketch map.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing the utility model is carried out detailed description.

Extremely scheme like Fig. 1; Shown in 2; The utility model discloses a kind of around tubular evaparator; By the D shape pipe evaporator 2 that flat horizontal surface and arc surface constitute, its flat horizontal surface is close to the freezing inner bag of refrigerator 1 outside, and D shape pipe evaporator 2 is to adopt the circular pipeline of aluminum or aluminum alloy material to form through specific moulding frock compacting.

Fig. 3; Described specific moulding frock mainly leans on spill roller bearing 4 and circular roller bearing 5 to cooperatively interact; Be pressed into D shape structure to the cross section of circular pipeline, wherein, the external diameter of the groove size of spill roller bearing 4 and D shape pipe evaporator 2 is complementary; Simultaneously, can control the size of the flat horizontal surface of D shape pipe evaporator 2 through the position of regulating circular roller bearing 5.For D shape pipe evaporator 2 and refrigerator system pipeline are welded more easily; The two ends of D shape pipe evaporator 2 are pipe by D shape tube transitions; The transition pipe caliber that connects refrigeration evaporator one end is 6-8mm, and length is about 15-30mm, and the transition pipe caliber that connects capillary one end is 4-5mm; Length is about 100-200mm, and thickness of pipe wall is 0.7-1mm.Behind the tube wrapping device that is put into the D shape pipe evaporator 2 after the moulding like Fig. 4; Utilize the adjustment die head 7 of tube wrapping device and the composite set of positioning roller 8 to be close to the freezing inner bag 1 outer side plane of refrigerator to the flat horizontal surface of D shape pipe evaporator 2; And in pipe, utilizing positioning roller 8 to stick on aluminium foil 3 on the outer surface of D shape pipe evaporator 2; The freezing inner bag 1 of refrigerator is to do rotation by synchronous motor to drive, finally D shape pipe evaporator 2 uniform winding and be fixed on the freezing inner bag 1 of refrigerator.

Fig. 4, tube wrapping device mainly comprise power-assisted handle 6, adjustment die head 7, positioning roller 8 three parts.Wherein adjusting die head 7 is complementary with D shape pipe evaporator 2 sizes; Main effect is accurately to be positioned to the flat horizontal surface of D shape pipe evaporator 2 on the freezing inner bag 1 of refrigerator; Positioning roller 8 effects are that control fixes pipeline around the pipe longitudinal direction and through pasting aluminium foil 3, and power-assisted handle 6 act as the horizontal direction of control around pipe.

The utility model is fixed on D shape pipe evaporator 2 on the freezing inner bag 1 of refrigerator through specific pipe winding device; Can increase pipe and inner bag contact area not changing current refrigerator inner-tube structure, evaporimeter layout and not reducing under the situation of pipe speed fully, improve the heat transfer efficiency of evaporimeter; Reduce simultaneously inner bag stress; Effectively control reaches and falls the cost purpose because the quality problems that the pipe trace causes reduces inner bag thickness.

Claims

1. one kind around tubular evaparator, it is characterized in that: by the D shape pipe evaporator (2) that flat horizontal surface and arc surface constitute, its flat horizontal surface is close to the freezing inner bag of refrigerator (1) outside.

2. according to claim 1 around tubular evaparator, it is characterized in that: paste aluminium foil (3) on said D shape pipe evaporator (2) outer surface.

3. according to claim 1 and 2 around tubular evaparator, it is characterized in that: said D shape pipe evaporator (2) is processed for the aluminum or aluminum alloy material.