CN2703182Y

CN2703182Y - Improved vacuum thermal insulating felt

Info

Publication number: CN2703182Y
Application number: CN 200420025955
Authority: CN
Inventors: 芮志明; 吴雪飞
Original assignee: YIXING CITY SITONG HOUSEHOLD APPLIANCE COMPLEMENT FACTORY
Current assignee: YIXING CITY SITONG HOUSEHOLD APPLIANCE COMPLEMENT FACTORY
Priority date: 2004-03-30
Filing date: 2004-03-30
Publication date: 2005-06-01
Anticipated expiration: 2014-03-30

Abstract

The utility model discloses an improved vacuum thermal insulating plate for freezing apparatus and thermal-insulating equipment, which is characterized in that an outer enveloping air insulating bag comprises an inner bag and an outer bag. Inorfil heat insulating materials are arranged in the inner layer bag, and getter is arranged between the inner bag and the outer bag. The two layers of bags have the good function of damage complementary to effectively keep fine vacuum degree of the vacuum themal insulation plate. The degasser is arranged between the inner bag and the outer bag, so that the absorption of the air filtered into the outer bag from the outside can be easy to be consumed to largely retard the adverse effects on the degree of vacuum of the air slowly filtered from the outside, so that the stability of the thermal conductivity factor of the vacuum thermal insulating plate can be stably kept. The degree of vacuum can be well kept for a long time to keep the stability of the thermal conductivity factor for a long time and to fully display the good effects on thermal insulation and cold insulation. The utility model has the advantage of long service life.

Description

The vacuum insulation panel of improvement

Technical field:

Model utility is about the improvement to modular refrigerating appliance and heat-preserving equipment vacuum insulation panel.

Background technique:

For reducing the energy consumption of modular refrigerating appliance such as refrigerator, refrigerator-freezer and heat-preserving equipment, selecting high performance thermal-protective material is that people pursue always, and vacuum insulation panel is because of having heat-shielding performance preferably, and quilt be it is believed that it is a kind of new thermal-protective material.Chinese patent 01808369 disclosed vacuum insulation panel is by inorfil thermal-protective material and getter being placed composite membrane vapour barrier bag, being pumped into high vacuum then.The existing thermal-protective material of this thermal baffle has lower thermal conductivity, and obtain paying attention to, yet feel still that in actual production and in using following deficiency is arranged: because objectively there is hard impurity in inorfil, individual layer trapping bag is when vacuumizing compression, carrying or bending forming, easily by wherein hard impurity acupuncture, might cause the damage of trapping bag, cause trapping bag trapping effect to descend, influence the maintenance of degree of vacuum; Secondly, single ply bag is lower to supporting the extraneous damage ability of chance, also might cause the trapping performance decrease; The above-mentioned thermal conductivity of vacuum insulation panel that either way can cause increases, and reduces effect of heat insulation.Besides, to the getter that the gas of slow infiltration has absorption, be placed in the compressed layer of fibers, capillary obstruct because of fiber, getter can not fully absorb the infiltration gas of retention in pore, also can cause the increase of heat conduction number, reduces effect of heat insulation.These all need further improvement and improve.

Summary of the invention:

The purpose of model utility is to overcome the deficiency of above-mentioned prior art, and a kind of trapping effect that can effectively guarantee the trapping bag is provided, and keeps thermal conductivity stable for a long time, and is heat insulation, every cold effective, the vacuum insulation panel of long service life.

The model utility purpose realizes that main the improvement is to adopt the double-ply bag structure, and getter is placed between inner layer bag and the outer bag, thereby has effectively guaranteed the trapping effect of trapping bag, and infiltrates more effective absorption of gas.Specifically, the model utility vacuum insulation panel comprises inorfil thermal-protective material, getter and outsourcing trapping bag, it is characterized in that said outsourcing trapping bag is made up of inner bag and outer bag, said inorfil thermal-protective material places inner layer bag, and said getter places between inner bag and the outer bag.

The said double-deck trapping bag of model utility can be the two-layer Aluminum-plastic composite bag that all has good trapping effect, also can be that inner bag adopts soft relatively plastic film bag, to reduce cost and convenient production (helping the fluffy fiber cotton imports).

Be the drying of favourable inorfil, reduce moisture content, and the formation (helping vacuumizing) of condition of high vacuum degree, improve effect of heat insulation, the said inorfil of model utility, a kind of better mode is to adopt thin sandwich structure.Said vacuum heat-insulation thickness of slab 5-20mm.

Bend as required for helping vacuum insulation panel, and less damage outsourcing trapping bag, said inorfil bending part bed thickness has 1/3-1/2 to disconnect.

For obtaining higher degree of vacuum, keep good heat-shielding performance, a kind of better mode of model utility is earlier the inorfil of lamination to be put into inner layer bag, after being evacuated, is inserted in the outer bag again, and puts into getter, is evacuated once more.Model utility can also also be placed with getter in inner layer bag, help overflowing in the layer of fibers absorption elimination of gas.

The model utility vacuum insulation panel, owing to adopt the double-ply bag structure, and getter placed between inner bag and the outer bag, two-layer bag has played good damage complementation, the condition of high vacuum degree that effectively keeps vacuum insulation panel, getter places between inside and outside bag, easily the external world is infiltered the GAS ABSORPTION consumption of outer bag again, slowed down the harmful effect of extraneous slow permeation body to degree of vacuum greatly, can stablize the stability that keeps the vacuum insulation panel thermal conductivity, degree of vacuum keeps, time is long, can keep thermal conductivity stable for a long time, give full play to good heat insulation, every cold effective, long service life; The double-ply bag structure also helps carrying, transportation, use, stores.Effectively overcome the deficiency that individual layer trapping bag brings, improved the effect of heat insulation of electrical equipment, reduced the power consumption of electrical equipment.In addition, the inner bag plastic film bag helps cotton insertion of bulk inorfil and places, and production operation is convenient, and cost is low.Place getter in the inner layer bag, also can overflow the GAS ABSORPTION elimination in the layer of fibers of back vacuumizing.

Below in conjunction with three embodiments, further specify model utility.

Description of drawings

Fig. 1 is the model utility first example structure schematic representation.

Fig. 2 is the model utility second example structure schematic representation.

Fig. 3 is model utility the 3rd an example structure schematic representation.

Embodiment

Embodiment 1: referring to Fig. 1, glass fibre cotton 3 is put into plastic pellicle inner bag 2, and vacuum-pumping and sealing is put into plastic-aluminum combined outer bag 1 again, inner bag with outside bag between put into getter 4, vacuum-pumping and sealing again.

Embodiment 2: referring to Fig. 2, as described above, the glass fibre cotton 3 in the inner layer bag is formed by composite wafer is superimposed.

Embodiment 3: referring to Fig. 3, as described above, glass fibre has 1/2 tomography at need bending part 5, vacuumizes the back and forms groove.

The model utility inorfil, also thermal-protective material such as available rock wool replaces.

Claims

1, Gai Liang vacuum insulation panel, comprise inorfil thermal-protective material, getter and outsourcing trapping bag, it is characterized in that said outsourcing trapping bag is made up of inner bag and outer bag, said inorfil thermal-protective material places inner layer bag, and said getter places between inner bag and outer bag.

2,, it is characterized in that inorfil is the multilayer lay-up in the said inner bag according to the vacuum insulation panel of the described improvement of claim 1.

3, according to the vacuum insulation panel of claim 1 or 2 described improvement, it is characterized in that said inner bag is the soft plastics bag, outer bag is an Aluminum-plastic composite bag.

4,, it is characterized in that said inorfil bending part bed thickness has 1/3-1/2 to disconnect, and vacuumizes the back and forms groove according to the vacuum insulation panel of the described improvement of claim 3.

5,, it is characterized in that also being placed with in the said inner layer bag getter according to the vacuum insulation panel of the described improvement of claim 3.

6,, it is characterized in that said vacuum heat-insulation thickness of slab 5-20mm according to the vacuum insulation panel of the described improvement of claim 3.