CN102116402A - Vacuum thermal insulation component and manufacturing method thereof, as well as refrigeration device - Google Patents

Vacuum thermal insulation component and manufacturing method thereof, as well as refrigeration device Download PDF

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Publication number
CN102116402A
CN102116402A CN2011100066698A CN201110006669A CN102116402A CN 102116402 A CN102116402 A CN 102116402A CN 2011100066698 A CN2011100066698 A CN 2011100066698A CN 201110006669 A CN201110006669 A CN 201110006669A CN 102116402 A CN102116402 A CN 102116402A
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China
Prior art keywords
core body
heat
insulation
vacuum
insulation core
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Pending
Application number
CN2011100066698A
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Chinese (zh)
Inventor
吕正光
文坚
刘秀宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Hualing Co Ltd
Hefei Midea Refrigerator Co Ltd
Original Assignee
Hefei Hualing Co Ltd
Hefei Midea Rongshida Refrigerator Co Ltd
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Application filed by Hefei Hualing Co Ltd, Hefei Midea Rongshida Refrigerator Co Ltd filed Critical Hefei Hualing Co Ltd
Priority to CN2011100066698A priority Critical patent/CN102116402A/en
Publication of CN102116402A publication Critical patent/CN102116402A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a vacuum thermal insulation component, which comprises a thermal insulation core plate, a first support plate, a second support plate, and a blocking film bag, wherein the first support plate is arranged on the upper surface of the thermal insulation core body, the second support plate is arranged on the lower surface of the thermal insulation core body, the first and the second support plates are used for supporting the thermal insulation core body, and a cavity is formed between the first and the second support plate; and the thermal insulation core body and the first and the second support plates are hermetically arranged in the blocking film bag, and the interior of the blocking film bag is vacuum. The vacuum thermal insulation component provided by the invention has excellent thermal insulation performance.

Description

Vacuum heat-insulation assembly and manufacture method thereof and chiller plant
Technical field
The present invention relates to the preparation method of a kind of vacuum heat-insulation assembly, this vacuum heat-insulation assembly and comprise the chiller plant of this vacuum heat-insulation assembly.
Background technique
The transfer mode of heat has three kinds of conduction, convection current and radiation.If the transmission of wanting to reduce heat just needs to reduce the transmission of above-mentioned three kinds of modes to heat.Wherein, radiative heat transfer transmission influence to heat when high temperature is bigger, and the transmission influence to heat is less when normal temperature.Common heat preserving method all is to improve from conduction and the convection current thermal conductivity that reduces material at present.Existing vacuum insulation panel reaches high heat preservation performance from reducing its conduction and convection current significantly exactly.The inside of vacuum insulation panel is the thermal-protective material that is full of low thermal conductivity, and the outside film wrapped that adopts high choke reaches the purpose that reduces the convection current thermal conductivity after it being vacuumized again.The inside of existing vacuum insulation panel is solid core, and its thermal insulation property just depends on the thermal conductivity of solid core and keeps low degree of vacuum;
Existing vacuum heat-insulation intralamellar part is the solid core of low thermal conductivity material, therefore the internal voids of vacuum insulation panel is less, the degree of vacuum of inside will reduce rapidly when minimum gas is revealed, thereby the convection current thermal conductivity is raise rapidly, can't reach the purpose of long-time high heat preservation performance, therefore also needing to add the higher getter material of cost simultaneously could prolong its working life.And, because the inside of vacuum insulation panel is solid core, so the thermal insulation property of vacuum insulation panel also depends on the quality of the thermal conductivity of inner solid core to a great extent.In order to reach better insulating power, just need use the solid core of the material of low thermal conductivity more as inside, therefore can improve the manufacture cost of vacuum insulation panel greatly.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.
For this reason, one object of the present invention is to propose a kind of vacuum heat-insulation assembly with good thermal insulation property and low production cost.
Another object of the present invention is to propose a kind of method for preparing described vacuum heat-insulation assembly.
A further object of the present invention is to propose a kind of chiller plant of good thermal insulation property.
To achieve these goals, propose a kind of vacuum heat-insulation assembly according to the embodiment of first aspect present invention, described vacuum heat-insulation assembly comprises: heat insulation core body; First and second dunnages, described first dunnage is arranged on the upper surface of described heat insulation core body, described second dunnage is arranged on the lower surface of described heat insulation core body, and described first and second dunnages are used to support described heat insulation core body and are formed with cavity between described first and second dunnages; With the barrier film bag, the wherein said heat insulation core body and first and second dunnages are arranged in the described barrier film bag hermetically and are vacuum in the described barrier film bag.
According to being formed with cavity between described first dunnage of the vacuum heat-insulation assembly of the embodiment of the invention and second dunnage, and conduction and the convection coefficient of cavity under vacuum state approaches zero (heat can't conduct and convection current by the vacuum space), and the efficient of radiative heat transfer under low-temperature condition is extremely low.Described vacuum heat-insulation assembly increases the volume in space by forming cavity, vacuum cavity is incubated after exhausting vacuum, therefore described vacuum heat-insulation assembly has extremely excellent insulating performance, and its heat insulation effect is better than known solid vacuum insulation panel far away.
Inner space according to the vacuum heat-insulation assembly of the embodiment of the invention is bigger, even therefore when the barrier film bag produces minute leakage, can not cause the degree of vacuum in the described vacuum heat-insulation assembly to reduce rapidly yet, thereby prolong the working life of described vacuum heat-insulation assembly effectively.
Because the cost of known vacuum insulation panel is mainly the insulated core material cost, and reduced the use amount of insulated core material widely by the formation cavity, so reduced the cost of production of described vacuum heat-insulation assembly significantly according to the vacuum heat-insulation assembly of the embodiment of the invention.
In addition, the vacuum heat-insulation assembly according to the embodiment of the invention can have following additional technical characteristics:
According to one embodiment of present invention, described heat insulation core body is tabular and is formed with a plurality of holes that the cavity between wherein said first and second dunnages is made of described a plurality of holes.
According to one embodiment of present invention, described thermal insulation barriers is spheroidal thermal insulation barriers, cylindrical thermal insulation barriers or polygonal cylindricality thermal insulation barriers.
According to one embodiment of present invention, described heat insulation core body is made by glass fibre, polyurethane or aerogel.
According to one embodiment of present invention, described first and second dunnages are sheet metal, plastic board, fire-resistant pressboard or plank.
Embodiment according to second aspect present invention proposes a kind of manufacture method according to the described vacuum heat-insulation assembly of first aspect present invention, and described manufacture method may further comprise the steps: heat insulation core body (A) is provided; (B) second dunnage is set to support described heat insulation core body on first dunnage and the lower surface at described heat insulation core body being provided with on the upper surface of described heat insulation core body, wherein between described first and second dunnages, is formed with cavity; (C) described heat insulation core body and first and second dunnages being put into the barrier film bag vacuumizes to encapsulate the described heat insulation core body and first and second dunnages described barrier film bag then.
According to one embodiment of present invention, described heat insulation core body is tabular and is formed with a plurality of holes that the cavity between wherein said first and second dunnages is made of described a plurality of holes.
Embodiment according to third aspect present invention proposes a kind of chiller plant, and described chiller plant comprises: shell; Inner bag, described inner bag are arranged in the described shell; Foaming layer, described foaming layer are arranged in the space between described shell and the described inner bag; With the vacuum heat-insulation assembly, described vacuum heat-insulation assembly is arranged in the described foaming layer and described vacuum heat-insulation assembly is according to the described vacuum heat-insulation assembly of first aspect present invention.
Chiller plant according to the embodiment of the invention has the excellent insulating performance.
According to one embodiment of present invention, described chiller plant is a refrigerator.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming embodiment's the description in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structural representation according to the heat insulation core body of the vacuum heat-insulation assembly of the embodiment of the invention;
Fig. 2 is according to the heat insulation core body of the vacuum heat-insulation assembly of the embodiment of the invention and the decomposition texture schematic representation of first and second dunnages;
Fig. 3 is the structural representation according to the vacuum heat-insulation assembly of the embodiment of the invention;
Fig. 4 is the sectional view according to the vacuum heat-insulation assembly of the embodiment of the invention;
Fig. 5 is the structural representation according to the chiller plant of the embodiment of the invention.
Description of reference numerals:
Vacuum heat-insulation assembly 10, heat insulation core body 11, hole 12, first dunnage 13, second dunnage 14, barrier film bag 15, chiller plant 20, shell 21, inner bag 22, foaming layer 23.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " vertically ", " laterally ", " on ", close the orientation of indications such as D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " or position is based on orientation shown in the drawings or position relation, only be the present invention for convenience of description rather than require the present invention therefore can not be interpreted as limitation of the present invention with specific orientation structure and operation.
In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, unless otherwise prescribed and limit, need to prove, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, it also can be the connection of two element internals, can be directly to link to each other, also can link to each other indirectly by intermediary, on the equipment between adjacent two devices the contact by process medium also be referred to as " linking to each other " or " connection ".For the ordinary skill in the art, can understand the concrete implication of above-mentioned term as the case may be.
Below with reference to the vacuum heat-insulation assembly 10 of Fig. 1-4 description according to the embodiment of the invention.Shown in Fig. 1-4, can comprise heat insulation core body 11, first dunnage 13, second dunnage 14 and barrier film bag 15 according to the vacuum heat-insulation assembly 10 of the embodiment of the invention.First dunnage 13 is arranged on the upper surface of heat insulation core body 10, and second dunnage 14 is arranged on the lower surface of heat insulation core body 10.First dunnage 13 and second dunnage, 14 formation faces support and are used to support heat insulation core body 11, and are formed with cavity between first dunnage 13 and second dunnage 14.Heat insulation core body 11, first dunnage 13 and second dunnage 14 are arranged in the barrier film bag 15 hermetically, and promptly barrier film bag 15 is enclosed within the outside of heat insulation core body 11, first dunnage 13 and second dunnage 14, and are vacuum in the barrier film bag 15.
According to being formed with cavity between first dunnage 13 of the vacuum heat-insulation assembly 10 of the embodiment of the invention and second dunnage 14, and conduction and the convection coefficient of cavity under vacuum state approaches zero (heat can't conduct and convection current by the vacuum space), and the efficient of radiative heat transfer under low-temperature condition is extremely low.Vacuum heat-insulation assembly 10 increases the volume in space by forming cavity, vacuum cavity is incubated after exhausting vacuum, therefore vacuum heat-insulation assembly 10 has extremely excellent insulating performance, and its heat insulation effect is better than known solid vacuum insulation panel far away.
Inner space according to the vacuum heat-insulation assembly 10 of the embodiment of the invention is bigger, even therefore when barrier film bag 15 produces minute leakage, can not cause the degree of vacuum in the vacuum heat-insulation assembly 10 to reduce rapidly yet, thereby prolong the working life of vacuum heat-insulation assembly 10 effectively.
Vacuum heat-insulation assembly 10 according to the embodiment of the invention has reduced the use amount of insulated core material widely by the formation cavity, so has reduced the cost of production of vacuum heat-insulation assembly 10 significantly.
In some embodiments of the invention, heat insulation core body 11 can be for tabular and be formed with a plurality of holes 12, and wherein the cavity between first dunnage 13 and second dunnage 14 can be made of a plurality of holes 12.Owing to be formed with a plurality of holes 12 on the heat insulation core body 11, therefore its structural strength can descend to some extent, first dunnage 13 is set and the structural strength that second dunnage 14 can improve heat insulation core body 11 is set by upper surface, thereby have identical structural strength with solid vacuum insulation panel at the lower surface of heat insulation core body 11 at heat insulation core body 11.
In an example of the present invention, heat insulation core body 11 can be that circular heat insulation core body 11, the first dunnages 13 and second dunnage 14 can be circular base slabs.In another example of the present invention, heat insulation core body 11 can be that heat insulation core body 11, the first dunnages 13 of polygonal and second dunnage 14 can be the polygonal dunnages.Wherein said polygonal can be triangle, square, rectangle, trapezoidal etc.
Heat insulation core body 11 according to the vacuum heat-insulation assembly 10 of the embodiment of the invention can be made by any one material with low thermal conductivity.In an example of the present invention, heat insulation core body 11 can be made by the material that glass fibre, polyurethane or aerogel etc. have a low thermal conductivity.Glass fibre, polyurethane and aerogel also have higher density, can make heat-insulating core body 11 have good structural strength.
In one embodiment of the invention, hole 12 can be circular port or polygonal hole, for example tri-angle-holed, square hole, rectangular opening, trapezoidal hole etc.A plurality of holes 12 can be evenly distributed on the heat insulation core body 11, for example on heat insulation core body 11, be scattered in the array of multiple lines and multiple rows, described array line space such as has and waits column pitch, so just makes heat insulation core body 11 have reticular structure, thereby can improve the structural strength of heat insulation core body 11.In an example of the present invention, hole 12 can be a through hole.
In a concrete example of the present invention, the volume sum in a plurality of holes 12 is suitable with the volume of heat insulation core body 11, the volume that is heat insulation core body 11 so not only can increase the volume in space widely only for known vacuum insulation panel half, and can reduce the cost of production of half approximately.
In some embodiments of the invention, the shape of first dunnage 13 and second dunnage 14 can be identical with the shape of heat insulation core body 11, to support heat insulation core body 11 better.First dunnage 13 and second dunnage 14 can be had than the material of high structural strength by any one to be made.In an example of the present invention, first dunnage 13 and second dunnage 14 can be sheet metal, plastic board, fire-resistant pressboard or plank etc.
In some embodiments of the invention, heat insulation core body 11 can be a plurality of discrete thermal insulation barriers.First dunnage 13 is set and at the lower surface of a plurality of discrete thermal insulation barriers second dunnage 14 is set at the upper surface of described a plurality of discrete thermal insulation barriers and come implementation structure to support, the cavity between first dunnage 13 and second dunnage 14 is formed by the space between described a plurality of discrete thermal insulation barriers.
In an example of the present invention, described a plurality of discrete thermal insulation barriers can be evenly distributed between first dunnage 13 and second dunnage 14, for example described a plurality of discrete thermal insulation barriers is scattered in the array of multiple lines and multiple rows, and described array line space such as has and waits column pitch.
In a concrete example of the present invention, described thermal insulation barriers can be spheroidal thermal insulation barriers, cylindrical thermal insulation barriers or polygonal cylindricality thermal insulation barriers.
To without limits, as long as heat insulation core body 11, first dunnage 13 and second dunnage 14 can be arranged in the barrier film bag 15 and can seal heat insulation core body 11, first dunnage 13 and second dunnage 14 barrier film bag 15 being vacuumized back barrier film bag 15 according to the shape of the barrier film bag 15 of the vacuum heat-insulation assembly 10 of the embodiment of the invention.Barrier film bag 15 can be existing any one high-isolation film bag, for example aluminium foil plastic film.
Manufacture method according to the vacuum heat-insulation assembly 10 of the embodiment of the invention is described below.Manufacture method according to the embodiment of the invention may further comprise the steps:
(A) provide heat insulation core body 11;
(B) first dunnage 13 being set on the upper surface of heat insulation core body 11 and second dunnage 14 being set on the lower surface of heat insulation core body 11, wherein between first dunnage 13 and second dunnage 14, be formed with cavity to support heat insulation core body 11; With
(C) heat insulation core body 11, first dunnage 13 and second dunnage 14 are put into barrier film bag 15 and then barrier film bag 15 is vacuumized, so that the sealing of barrier film bag 15 vacuum ground heat insulation core body 11, first dunnage 13 and second dunnage 14.
For example install according to other of other steps of the manufacture method of the embodiment of the invention and use that vacuum pumping device all is known with those of ordinary skill in the art all, be not described in detail here.
Below with reference to the chiller plant 20 of Fig. 5 description according to the embodiment of the invention.As shown in Figure 5, can comprise shell 21, inner bag 22, foaming layer 23 and vacuum heat-insulation assembly 10 according to the chiller plant 20 of the embodiment of the invention, vacuum heat-insulation assembly 10 is the vacuum heat-insulation assembly of describing according to the above embodiment of the present invention.Inner bag 22 is arranged in the shell 21, and foaming layer 23 is arranged in the space between shell 21 and the inner bag 22, and vacuum heat-insulation assembly 10 is arranged in the foaming layer 23.Chiller plant 20 according to the embodiment of the invention has the excellent insulating performance.
In an example of the present invention, chiller plant 20 can be a refrigerator.To be assemblied in the foaming layer 23 of refrigerator according to the vacuum heat-insulation assembly 10 of the embodiment of the invention, thereby make the thermal insulation property of described refrigerator be far superior to known polyurethane foam refrigerator.
Therefore, according to the embodiment of the invention the vacuum heat-insulation assembly, the inner vacuum space is big, good heat-insulation effect is saved manufactured materials, has reduced manufacture cost.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiments or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiments under the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.

Claims (10)

1. a vacuum heat-insulation assembly is characterized in that, comprising:
Heat insulation core body;
First and second dunnages, described first dunnage is arranged on the upper surface of described heat insulation core body, described second dunnage is arranged on the lower surface of described heat insulation core body, and described first and second dunnages are used to support described heat insulation core body and are formed with cavity between described first and second dunnages; With
Barrier film bag, the wherein said heat insulation core body and first and second dunnages are arranged in the described barrier film bag hermetically and are vacuum in the described barrier film bag.
2. vacuum heat-insulation assembly according to claim 1 is characterized in that, described heat insulation core body is tabular and is formed with a plurality of holes that the cavity between wherein said first and second dunnages is made of described a plurality of holes.
3. vacuum heat-insulation assembly according to claim 1 is characterized in that, described heat insulation core body is a plurality of discrete thermal insulation barriers.
4. vacuum heat-insulation assembly according to claim 3 is characterized in that, described thermal insulation barriers is spheroidal thermal insulation barriers, cylindrical thermal insulation barriers or polygonal cylindricality thermal insulation barriers.
5. vacuum heat-insulation assembly according to claim 1 is characterized in that, described heat insulation core body is made by glass fibre, polyurethane or aerogel.
6. vacuum heat-insulation assembly according to claim 1 is characterized in that, described first and second dunnages are sheet metal, plastic board, fire-resistant pressboard or plank.
7. the manufacture method of a vacuum heat-insulation assembly is characterized in that, may further comprise the steps:
(A) provide heat insulation core body;
(B) second dunnage is set to support described heat insulation core body on first dunnage and the lower surface at described heat insulation core body being provided with on the upper surface of described heat insulation core body, wherein between described first and second dunnages, is formed with cavity; With
(C) described heat insulation core body and first and second dunnages being put into the barrier film bag vacuumizes to encapsulate the described heat insulation core body and first and second dunnages described barrier film bag then.
8. the manufacture method of vacuum heat-insulation assembly according to claim 7 is characterized in that, described heat insulation core body is tabular and is formed with a plurality of holes that the cavity between wherein said first and second dunnages is made of described a plurality of holes.
9. a chiller plant is characterized in that, comprising:
Shell;
Inner bag, described inner bag are arranged in the described shell;
Foaming layer, described foaming layer are arranged in the space between described shell and the described inner bag; With
Vacuum heat-insulation assembly, described vacuum heat-insulation assembly are arranged in the described foaming layer and described vacuum heat-insulation assembly is according to each described vacuum heat-insulation assembly among the claim 1-6.
10. chiller plant according to claim 9 is characterized in that, described chiller plant is a refrigerator.
CN2011100066698A 2011-01-04 2011-01-04 Vacuum thermal insulation component and manufacturing method thereof, as well as refrigeration device Pending CN102116402A (en)

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CN104421573A (en) * 2013-08-20 2015-03-18 常州山由帝武节能新材料制造有限公司 Decorative heat preserving plate and refrigerating device using same
CN104747862A (en) * 2013-12-27 2015-07-01 常州山由帝武节能新材料制造有限公司 VIP core material with glass fiber sheets and gas phase SiO2
CN105209258A (en) * 2013-05-07 2015-12-30 圣戈班依索维尔有限公司 Method for manufacturing vacuum insulation panels
CN106358404A (en) * 2016-11-09 2017-01-25 上海传英信息技术有限公司 Thermal insulation element for portable electronic equipment
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CN110828944A (en) * 2019-11-20 2020-02-21 中车大连机车车辆有限公司 Power storage battery system heat insulation device for rolling stock
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CN104421573B (en) * 2013-08-20 2016-08-24 江苏山由帝奥节能新材股份有限公司 A kind of decorative heat-preservation plate and apply the refrigerating equipment of this plate
CN104421573A (en) * 2013-08-20 2015-03-18 常州山由帝武节能新材料制造有限公司 Decorative heat preserving plate and refrigerating device using same
CN104747862A (en) * 2013-12-27 2015-07-01 常州山由帝武节能新材料制造有限公司 VIP core material with glass fiber sheets and gas phase SiO2
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US11927386B2 (en) 2015-08-03 2024-03-12 Lg Electronics Inc. Vacuum adiabatic body and refrigerator
US11920723B2 (en) 2015-08-03 2024-03-05 Lg Electronics Inc. Vacuum adiabatic body and refrigerator
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