CN2854464Y

CN2854464Y - Door body of refrigerator

Info

Publication number: CN2854464Y
Application number: CNU2005201212282U
Authority: CN
Inventors: 张裕茂; 张建华
Original assignee: Guangdong Kelong Electrical Appliances Co Ltd
Current assignee: Hisense Home Appliances Group Co Ltd
Priority date: 2005-12-23
Filing date: 2005-12-23
Publication date: 2007-01-03
Anticipated expiration: 2015-12-23

Abstract

The utility model discloses a freezer refrigerator door body, which comprises an internal bladder, two panels and foaming layers between the internal bladder and the panels. The transverse or longitudinal separations are positioned throughout the door body foaming layers. The utility model can thoroughly resolve deformation problem of door body, so that product quality and structure can be more stable. The utility model is used for freezer refrigerators with big door bodies in particular.

Description

A kind of refrigerator door

Technical field

The utility model relates to a kind of refrigerator technical field, more particularly relates to a kind of refrigerator door.

Background technology

As everyone knows, the casing of refrigerator and door body must have the heat-insulation layer of one deck foamed plastics, claim foaming layer again, and the alveolar layer of function admirable has reduced the loss of refrigeration capacity of refrigerator, reduces the power consumption of refrigerator.But, on the refrigerator of some gate bodies, but exist the problem of door cold deformation, if the door body deformability is serious, then on the mating surface of Men Tiyu casing gap will appear, influenced the heat-insulating property of refrigerator.For common refrigerator, the production process route of door body is: a) manufacturing → b) assembling of inner bag, the door face board → c) door foaming → d) general assembly of door inner bag, door face board.Plastic uptake technology is used in the manufacturing of inner door always, with sheet material plastic uptake on door courage mould respectively, after the moulding inner bag, door courage edge are carried out punching, corner cut, form the door inner bag of refrigerator, refill and join refrigerator door plank, between inner bag and panel, inject the bubble material, under suitable temperature, pressure condition, be foamed into to having the thermal insulating door thermally insulated door body of effect of heat insulation.The thickness of foaming layer is by the distance decision between inner bag and the door face board, require on low household freezer or the door body refrigerator (refrigerator) big, length for the temperature inside the box, usually the door body deforms in process of refrigerastion, and this phenomenon is very outstanding on long door body more than 1.2 meters.Gently then influence outward appearance, heavy then between the Men Tiyu casing, produce gap, have a strong impact on refrigeration performance, increase energy consumption of refrigerator.

The mechanism that distortion forms is: the excessive temperature differentials on door surface, inside and outside, and internal surface temperature is-25 ℃, and outer surface is the room temperature about 30 ℃, and during refrigeration, inner surface is because catch a cold, and alveolar layer shrinks deformation.Temperature is a continuous distribution from the door external surface to inner surface, and therefore, from outside to inside, alveolar layer deformation aggravates along with variation of temperature.The elastic modelling quantity of alveolar layer is bigger, and the stress that deformation produces is also bigger.The analysis and the calculating of theoretical model show: Men Tiyue is long, and deformation is just big more, and stress is also just big more.Its present main refrigeration appliance enterprise comprises that more external refrigeration manufacturers mainly are by strengthening steel plate inner placement of door body, or with barrier paper alveolar layer and door face board metal is separated this problem that solves.Such solution is not preferred plan obviously, has increased cost on the one hand, is on the other hand fundamentally not solve door body deformability problem, just alleviated the door body deformability by the way, but risk exists still.

The utility model content

The purpose of this utility model is, fundamentally solves door body deformability problem, and providing a kind of can cooperate refrigerator door closely with casing, stop to cause because of the door distortion phenomenon of refrigerator cold draining, to overcome the deficiencies in the prior art.

The method that solves the problems of the technologies described above is: a kind of refrigerator door, and comprise an inner bag, door face board, be clipped in the alveolar layer between an inner bag and door face board, laterally or vertically be provided with separation at the monoblock door body foaming layer.

Above-mentioned refrigerator door, the separation length of described door body foaming layer is 50～70cm.

The utility model compared with prior art has the following advantages and beneficial effect:

Large-area alveolar layer is replaced by the fritter alveolar layer, has weakened the refrigeration shape stress of alveolar layer under the varying environment temperature greatly, reduces contraction distortion, has stopped the phenomenon of door body bulk deformation, makes product quality and structure more stable.

Description of drawings

Fig. 1 is Men Tizhong of the present utility model separates alveolar layer with cutter a schematic diagram;

Fig. 2 is Men Tizhong of the present utility model separates alveolar layer with division board a schematic diagram.

The specific embodiment

The structure of refrigerator door is made of door inner bag, door face board and the alveolar layer that is clipped between an inner bag and door face board, and the situation of door body deformability appears in long door body easily in process of refrigerastion, referring to Fig. 1,, separate 2 laterally or vertically being provided with of monoblock door body foaming layer 1 in order to address this problem.Finish foamed process during door foaming earlier, carry out a body general assembly operation again, crucial is to add the operation of alveolar layer segment processing in foamed process.Segment processing can be alveolar layer to be drawn disconnected with cutter.The door body can be carried out the separate type foaming, promptly earlier will place particular manufacturing craft on the door face board, and is manually that 1 stroke of monoblock alveolar layer is disconnected after the foaming, forms and separates 2, refills afterwards and joins an inner bag.Test shows that the separation length of alveolar layer is that 50～80cm is comparatively suitable.Men Tike as 120cm or 150cm is divided into two sections, and the above door body of long 150cm need be divided into three sections.The instrument that available cutter and so on is thinner and sharp in the production operation is cut apart alveolar layer.

Referring to Fig. 2, as another kind of embodiment, also the situation that refrigerator door was divided as required can be placed division board 3 on door face board before foaming, this division board 3 adopts and does not paste foam material, foaming back alveolar layer 1 will be separated by division board 3 like this, reach the purpose of segment processing, the operation that foams again, assembles.

Claims

1. a refrigerator door comprises an inner bag, door face board, is clipped in the alveolar layer between an inner bag and door face board, it is characterized in that: laterally or vertically be provided with separation at the monoblock door body foaming layer.

2. refrigerator door according to claim 1 is characterized in that: the separation length of described door body foaming layer is 50～80cm.