CN111502506B - A thermal insulation material structure and thermal insulation door body - Google Patents
A thermal insulation material structure and thermal insulation door bodyInfo
- Publication number
- CN111502506B CN111502506B CN202010442164.5A CN202010442164A CN111502506B CN 111502506 B CN111502506 B CN 111502506B CN 202010442164 A CN202010442164 A CN 202010442164A CN 111502506 B CN111502506 B CN 111502506B
- Authority
- CN
- China
- Prior art keywords
- heat
- supporting
- insulating material
- heat insulating
- material layers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
- E06B5/161—Profile members therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
本发明公开了一种绝热材料结构及绝热保温门体，属于绝热节能技术领域，包括组合在一起的一层以上的绝热材料层，相邻两层所述绝热材料层之间和/或所述绝热材料层内部分布有低放气率的支撑颗粒。针对现有技术中真空绝热板抽真空效率低、保持高真空稳定性差的技术问题，本发明提供了一种绝热材料结构及绝热保温门体，它能在提高抽真空的效率，且可长时间的保持高真空的状态。
The present invention discloses an insulation material structure and an insulating and heat-retaining door body, belonging to the field of thermal insulation and energy-saving technology. The structure comprises one or more combined insulation material layers, with support particles having a low outgassing rate distributed between adjacent insulation material layers and/or within the insulation material layers. To address the technical issues of low vacuum efficiency and poor high vacuum stability in existing vacuum insulation panels, the present invention provides an insulation material structure and an insulating and heat-retaining door body that improve vacuum efficiency and maintain a high vacuum state for a long time.
Description
Technical Field
The invention relates to the technical field of heat insulation and energy conservation, in particular to a heat insulation material structure and a heat insulation door body.
Background
High vacuum insulation generally requires that the vacuum degree of the pressure below 1.33 multiplied by 10 -2 Pa is maintained in an insulation space, and the leakage and gassing rate is less than or equal to 5.0 multiplied by 10 -7Pa.m3/s, so that the convective heat transfer of gas and the heat conduction of most residual gas can be eliminated, and a good insulation effect is achieved. High vacuum multilayer insulation typically employs several tens of high reflectivity metal films as reflective layers and low thermal conductivity spacer materials as spacer layers, alternately combined. The vacuum jacket and the multi-layer heat insulation material form a complete high-vacuum multi-layer heat insulation structure, and heat transfer through heat conduction, convection and radiation can be limited to the greatest extent. When the door body is pumped to a high vacuum of 1.33 multiplied by 10 -2 Pa or more, the leakage and deflation rate is less than or equal to 5.0 multiplied by 10 -7Pa.m3/s, and the heat insulation material is reasonably perforated (sewed), the heat transfer by convection is basically zero, and the multi-layer heat insulation structure is mainly used for restraining the heat transfer by two paths of conduction and radiation.
The existing vacuum metal heat insulation door body is provided with a plurality of groups of metal supports in a jacket or is made of foam polystyrene made of foaming materials in the jacket. The vacuum door body made of the metal support well prevents deformation of the door body after vacuumizing, but has large heat conduction, heavy weight and poor heat insulation performance, and the door body made of the foamed polystyrene made of the foaming material has light weight, large volume, needs to be made of the foaming material to be thick and has general heat insulation performance.
Meanwhile, in order to improve the heat preservation and insulation effect, for example, chinese patent number CN209026391U, publication date 2019, month 06 and 25, a composite vacuum heat insulation device plate is disclosed, and the composite vacuum heat insulation device plate comprises a metal plate, a vacuum heat insulation plate and a vacuumizing valve, wherein the vacuum heat insulation plate is provided with an inner layer filling core material and an outer layer filling core material, and has the heat preservation and insulation effect. However, in the above patent, the inner filling core material and the outer filling core material are easily adhered together, so that gas between the two and the material itself cannot be rapidly discharged, and the gas is not completely discharged, thereby affecting the vacuum degree inside the heat insulation device plate.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the technical problems of low vacuumizing efficiency and poor high vacuum stability of a vacuum insulation board in the prior art, the invention provides a heat insulation material structure and a heat insulation door body, which can improve vacuumizing efficiency and can maintain a high vacuum state for a long time.
2. Technical proposal
In order to solve the problems, the technical scheme provided by the invention is as follows:
a heat insulating material structure comprises more than one heat insulating material layers which are combined together, wherein supporting particles with low outgassing rate are distributed between two adjacent heat insulating material layers and/or inside the heat insulating material layers.
On the basis of adopting the design of a plurality of heat insulating material layers to improve heat insulating performance, the invention adopts the arrangement mode of the support particles with low air release rate, so that the heat insulating door body can keep a high vacuum state for a long time, thereby ensuring the heat insulating performance of the heat insulating door body, simultaneously, the support particles can reduce the direct contact area of two adjacent heat insulating material layers, reduce the contact transfer of heat, and ensure that the heat insulating material structure has good heat insulating effect.
Optionally, the supporting particles are made of a material with a heat conductivity coefficient not more than 0.2W/mK. The material with lower heat conductivity coefficient can effectively reduce the heat transfer efficiency of the two heat insulating material layers 1 in a spaced state.
Optionally, the insulating material layer includes a first reflective layer, a second reflective and flame retardant layer, combined together in sequence. The first reflecting layer and the second reflecting layer are matched so that almost no temperature gradient exists in the space of the heat insulation door body, radiation heat exchange is reduced, and the flame-retardant layer plays a role in heat insulation and flame retardance.
Optionally, more than one layer of said insulating material combined together is stitched together by a plurality of fire-resistant threads. The plurality of fire-proof wires can effectively prevent the supporting particles from accumulating between the two layers of heat-insulating material layers while fixing the plurality of layers of heat-insulating material layers.
Optionally, the edges of the layer of insulating material are covered by fire resistant edges. The fireproof edge prevents supporting particles from falling from between two layers of heat insulating material layers while fixing the edge of the heat insulating material layers.
The heat-insulating door body comprises two oppositely arranged metal door plates, any one of the heat-insulating material structures clamped between the two metal door plates, and a supporting component for limiting deformation of the metal door plates. The heat insulating material structure and the supporting component are matched to support the metal door plate, so that a better supporting effect on the heat insulating door body after vacuum forming is achieved, and the door body is effectively prevented from being deformed due to reduction of internal pressure after vacuum pumping.
Optionally, the supporting component is including locating a plurality of supporting seats on the metal door plant, the supporting seat includes interior supporting part, outer supporting part and is used for connecting the connecting rod of interior supporting part and outer supporting part, be equipped with on the metal door plant with connecting rod matched with fixed orifices. The metal door plate is supported simultaneously through the inner supporting part and the outer supporting part, so that the support effect is better compared with that of a single supporting part, and the arrangement of the plurality of supporting seats enables all parts of the metal door plate to be uniformly stressed, so that local deformation can be effectively avoided.
Optionally, the inner support part is a hollow ring body sleeved at one end of the connecting rod. Compared with an integrally formed structure, the splicing structure is adopted to help reduce the difficulty of mounting the supporting seat on the metal door plate.
Optionally, a heat insulation structure for reducing the contact area is arranged on the supporting seat. The heat insulation structure has the purposes of reducing the contact area and increasing the contact thermal resistance, so that the support seat 1 and the heat insulation material structure have good heat insulation performance, and the heat transfer through the heat transfer is reduced as much as possible
Optionally, the supporting seat is provided with a diversion trench. When the vacuum state is pumped, the gas in the heat insulation door body can be rapidly discharged outwards through the diversion trench, so that the gas discharge efficiency is improved.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) The heat-insulating material layers can greatly reduce the heat leakage quantity of the heat-insulating structure and improve the heat-insulating performance.
(2) The arrangement of the supporting particles enables two adjacent layers of the heat insulation material layers to be provided with a certain gap, so that the adjacent layers of the heat insulation material layers cannot be attached together, contact transfer of heat is avoided, and the heat insulation material structure has good heat insulation effect.
(3) The arrangement of the supporting particles enables the gas between two adjacent heat insulation material layers to be discharged more easily, thereby ensuring the heat insulation performance of the heat insulation door body.
(4) The heat is reflected for many times by the first reflecting layer and the second reflecting layer and is little absorbed by the multi-layer heat insulation material, so that the heat insulation door body space almost has no temperature gradient, and radiation heat exchange is reduced.
(5) The support component is matched with the heat insulation material structure to support the left and right ends of the heat insulation door body, the upper, lower, left and right sides of the heat insulation door body are supported, and the door body is effectively prevented from being deformed due to overlarge internal pressure after vacuumizing.
Drawings
FIG. 1 is a schematic view of a heat insulating material structure according to the present invention;
FIG. 2 is a schematic view of the layer structure of the heat insulating material layer of the present invention;
FIG. 3 is a side view of an insulated door according to the present invention;
FIG. 4 is a front view of an insulated door according to the present invention;
FIG. 5 is a schematic cross-sectional view of an insulated door according to the present invention;
Fig. 6 is an enlarged partial schematic view at a in fig. 5.
1. The heat insulation material layer, 11, the first reflection layer, 12, the second reflection, 13, the flame retardant layer, 2, supporting particles, 3, a fire-proof wire, 4, a fire-proof edge, 5, a metal door plate, 51, a fixing hole, 6, a supporting component, 61, a supporting seat, 611, an inner supporting part, 612, an outer supporting part, 613, a connecting rod, 614 and a diversion trench.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to FIGS. 1-5 and examples.
Example 1
Referring to fig. 1 and 2, a heat insulating material structure of the present embodiment includes more than one heat insulating material layers 1 combined together, and support particles 2 with low outgassing rate are distributed between two adjacent heat insulating material layers 1 and inside the heat insulating material layers 1, and in other embodiments, the support particles 2 may be disposed only between two adjacent heat insulating material layers 1 or only inside the heat insulating material layers 1.
Regarding the concept of the outgassing rate, any solid material can dissolve and adsorb some gas in the atmospheric environment, when the material is placed in vacuum, the outgassing of the material is generated due to dissolution and desorption, for a general vacuum apparatus, the outgassing of the material is the main gas source of the vacuum system, and the low outgassing rate is the effect of releasing relatively less gas in the same time to reduce the vacuum state, and is the common knowledge in the art, so it is not repeated here.
The heat insulation door body is characterized in that a plurality of layers of heat insulation material layers are arranged, heat leakage of the heat insulation structure can be greatly slowed down, heat insulation and heat preservation performance is improved, a certain gap is formed between two adjacent layers of heat insulation material layers 1, so that the adjacent layers of heat insulation material layers 1 cannot be attached together, in a vacuum state, the gap can reduce the direct contact area of the two adjacent layers of heat insulation material layers 1, heat contact transfer is reduced, a good heat insulation effect is achieved for the heat insulation material structure, gaps between the two adjacent layers of heat insulation material layers 1 and the inside of the heat insulation material layers 1 are increased due to the arrangement of the support particles 2, during vacuumizing operation, gas release between the heat insulation material layers 1 and the inside of the heat insulation material layers 1 is more efficient and thorough, the heat insulation material structure with small gas content can be used for keeping a high vacuum state for a long time when being applied to the heat insulation and heat preservation door body, therefore the heat insulation and heat preservation performance of the heat insulation and heat preservation door body is guaranteed, the support particles 2 are made of materials with low gas release rate, during vacuumizing operation, the time of the heat insulation material released by the support particles 2 can be reduced, the inside of the heat insulation material layer is rapidly discharged, and the heat insulation material layer is prevented from being more efficient when the heat insulation material layer is fully discharged by the heat insulation material layer 1, and the heat insulation material is more completely discharged in the vacuum state, and the vacuum state is more fully processed, and the heat insulation material is more efficient when the heat insulation material is fully discharged in the vacuum state is guaranteed, and the heat insulation material is in the vacuum state under the state when the high heat insulation state is in the state and the heat insulation state is kept in the heat insulation state.
Example 2
Referring to fig. 1 and 2, in the heat insulating material structure of this embodiment, compared with embodiment 1, the supporting particles 2 are made of a material having a thermal conductivity of not more than 0.2W/m·k.
The supporting particles 2 made of the material with the heat conductivity coefficient not larger than 0.2W/m.K have poor heat conductivity, when the supporting particles 2 are in contact with the heat insulating material layers 1, the heat transfer efficiency of the two heat insulating material layers 1 in an interval state can be effectively reduced, in the embodiment, the supporting particles 2 are bead-shaped particles made of glass materials with the diameter of 0.2-1mm, the air release rate of the glass materials in a vacuumizing state is low, the heat transfer efficiency can be reduced, the influence on the vacuum state is reduced, the heat conductivity coefficient of the glass is smaller than 0.2W/m.K, the heat conduction effect is poor and the heat resistance is high, in other embodiments, the supporting particles 2 can be made of one of polycarbonate, calcium carbonate glass and organic glass PMMA, the supporting particles 2 of various materials can be mixed for use, when the supporting particles 2 are bead-shaped particles, the surfaces are more round than particles of other shapes, the supporting particles 2 and the heat insulating material layers 1 are prevented from being damaged due to extrusion of the glass materials in the vacuum state, meanwhile, the combined forming of the multi-layer heat insulating material layers 1 has good supporting structure, the heat insulating effect can take a good supporting effect, and the supporting effect can take a round shape or have a limited shape in other embodiments, and can take a round shape or have no limited supporting effect.
Example 3
Referring to fig. 1 and 2, in comparison with embodiment 1 or 2, the heat insulating material layer 1 of the present embodiment includes a first reflective layer 11, a second reflective layer 12, and a flame retardant layer 13, which are sequentially combined.
In a vacuum environment, the number of gas molecules is reduced, the collision among molecules is reduced, the heat exchange among molecules is reduced, namely, the number of gas molecules for transferring energy is small, heat is reflected for a plurality of times through the first reflecting layer 11 and the second reflecting layer 12, and most of the heat is absorbed by the heat insulating material layer 1, so that the existence of a temperature gradient is almost eliminated in the space of the heat insulating door body, the radiation heat exchange is greatly reduced, the flame retardant layer 13 plays a role in heat insulation and flame retardance, one of the alternative embodiments is that the first reflecting layer 11 is an aluminum foil, the second reflecting layer 12 is a metal film, the flame retardant layer 13 is flame retardant glass fiber paper, the other alternative embodiment is that the first reflecting layer 11 is a metal film, the second reflecting layer 12 is an aluminum foil, and the flame retardant layer 13 is flame retardant glass fiber paper.
In this embodiment, the supporting particles 2 are sandwiched between the first reflective layer 11, the second reflective layer 12 and the flame retardant layer 13, so that the heat insulation performance of the heat insulating material layer 1 is improved, and the high vacuum state is easier to maintain than before.
Example 4
With reference to fig. 1 and 2, in the heat insulating material structure of this embodiment, compared with any one of embodiments 1 to 3, more than one heat insulating material layer 1 is stitched together through a plurality of fire-proof wires 3, in this embodiment, the fire-proof wires 3 are glass fiber wires, the two fire-proof wires 3 are distributed according to a distance of 200-300mm, and the values of 200mm, 300mm, 220mm, 280mm and the like can be selected according to the requirement when the heat insulating material structure is applied, and stitching is performed according to the pattern of fig. 2.
The heat-insulating material layers 1 are stitched together through the plurality of the fire-proof wires 3 distributed at equal intervals, the heating material layers 1 between the two fire-proof wires 3 connected form gaps for fixing the supporting particles 2, the supporting particles 2 are filled in the gaps to prevent the supporting particles 2 from accumulating between the two heat-insulating material layers 1, the supporting particles 2 are stably and uniformly distributed between the two adjacent heat-insulating material layers 1, and the optional implementation mode is that the plurality of fire-proof wires 3 are distributed at equal intervals, and the intervals between the two adjacent fire-proof wires 3 are not too large by adopting the distribution mode, so that the supporting particles 2 can be uniformly partitioned, and the influence of the uneven accumulation of the supporting particles 2 on the heat-insulating effect is avoided.
Example 5
In the embodiment, the fireproof edge 4 is glass fiber cloth, the edge of the multi-layer heat insulation material layer 4 is covered by the glass fiber cloth in double-folded mode, and the glass fiber wires are utilized to bypass the peripheral edge according to zigzag mode.
The fireproof edge 4 and the fire-proof wire 3 are matched to enable the gap between the two layers of heat-insulating material layers 1 for containing the supporting particles 2 to be sealed by the fireproof edge 4 and the fire-proof wire 3, so that the supporting particles 2 are stably filled in the corresponding gap, the falling of the supporting particles 2 is avoided, the supporting particles 2 are guaranteed to have good supporting effect, and meanwhile, the multi-layer heat-insulating material combination can be prevented from loosening.
Example 6
Referring to fig. 1-6, a heat insulation door body of this embodiment includes two metal door panels 5 disposed opposite to each other, a heat insulation material structure according to any one of embodiments 1-5 sandwiched between the two metal door panels 5, and a support member 6 for limiting deformation of the metal door panels 5.
In the embodiment, the metal door plate 5 is made of a stainless steel mirror plate with small blackness coefficient and high single surface smoothness and low temperature resistance, heat conduction mainly takes radiation as a main part, most of the heat radiated towards the metal door plate 5 is reflected and only a small part of the heat is absorbed by the metal door plate 5 in a vacuum state, after the heat insulating material structure is adopted, the heat insulating door body has good heat insulating and preserving performance, the heat insulating material structure can play a role in supporting the upper end and the lower end of the heat insulating door body when the heat insulating door body is pumped to the vacuum state, so that the shape of the heat insulating door body is primarily fixed, meanwhile, the supporting component 6 is matched with the heat insulating material structure to support the left end and the right end of the heat insulating door body, the heat insulating door body is effectively prevented from being deformed due to the fact that the internal pressure is too small after the heat is pumped, meanwhile, the reactive force of the supporting components 6 on the two sides are applied to the heat insulating material structure to play a good fixing and preserving function on the heat insulating material structure, the two metal door plates 5 and the heat insulating material structure can be tightly pressed, looseness or disorder can be prevented, and the heat insulating material structure is further used for the heat insulating door body is widely.
Example 7
Referring to fig. 1-6, in comparison with embodiment 6, the support assembly 6 includes a plurality of support seats 61 provided on the metal door panel 5, the support seats 61 include an inner support portion 611, an outer support portion 612, and a connecting rod 613 for connecting the inner support portion 611 and the outer support portion 612, and the metal door panel 5 is provided with a fixing hole 51 matched with the connecting rod 613.
The inner supporting part 611 and the outer supporting part 612 are propped against the inner side and the outer side of the metal door plate 5 at the same time, the inner side of the inner supporting part 611 is propped against the heat insulation material structure, when the vacuum state is pumped between the two metal door plates 5, the metal door plate 5 is concaved inwards to deform under the vacuum effect, at the moment, the inner supporting part 611 is propped against the metal door plate 5 and the heat insulation material structure, the inward deformation of the metal door plate 5 can be limited, the metal door plate 5 is supported simultaneously through the inner supporting part and the outer supporting part, compared with a single supporting part, the supporting effect is better, and the arrangement of the plurality of supporting seats 61 ensures that all parts of the metal door plate 5 are uniformly stressed, and the local deformation can be effectively avoided.
Example 8
Referring to fig. 1-6, in comparison with embodiment 6 or 7, the inner supporting portion 611 is a hollow ring body sleeved at one end of the connecting rod 613.
The inner supporting portion 611 is a hollow ring body, which is sleeved at one end of the connecting rod 613 opposite to the outer supporting portion 612, when in installation, the connecting rod 613 passes through the fixing hole 51 from the outer side of the metal door panel 5 and makes the outer supporting portion 612 prop against the outer side of the metal door panel 5, at this time, the inner supporting portion 611 is sleeved at the inner side end of the connecting rod 613, which is positioned at the inner side end of the metal door panel 5, so that the installation and fixation of the supporting seat 61 can be completed.
Example 9
Referring to fig. 1-6, in the heat insulation door body of this embodiment, compared with any one of embodiments 6-8, a heat insulation structure for reducing a contact area is provided on the support seat 61.
In this example, the heat insulation structure is a rough surface on the contact surface of the supporting seat 61 and the heat insulation material structure, and the rough surface has low smoothness, so that when the supporting seat 61 contacts with the end surface of the heat insulation material structure, the particles on the rough surface of the supporting seat 61 are preferentially abutted against the end surface of the heat insulation material structure, and the rough surface has the purposes of reducing the contact area and increasing the contact thermal resistance, so that the supporting seat 61 and the heat insulation material structure have good heat insulation performance, and heat transfer is reduced as much as possible.
Example 10
Referring to fig. 1-6, in the heat insulation door body of this embodiment, compared with any one of embodiments 6-9, the supporting seat 61 is provided with a diversion trench 614.
In this embodiment, the diversion trench is a cylindrical through hole penetrating through the supporting seat 61, when the supporting seat 61 is mounted on the metal door plate 5, the cylindrical through hole is horizontally disposed, and when the vacuum state is pumped, the gas in the heat-insulating door body can be rapidly discharged outwards through the diversion trench 614, thereby improving the gas discharging efficiency.
Example 11
The heat-insulating door body forming mode comprises the steps of placing a multi-layer heat-insulating material layer structure between processed metal door plates 5, integrally placing the door body in high-vacuum obtaining equipment, and sealing the inside of the door body to high vacuum of 1.33 multiplied by 10 -2 Pa or better vacuum degree when the inside of the equipment is pumped to the high vacuum degree, so that the door body has excellent heat insulation and heat preservation performance, reduces heat transfer of convection and conduction, greatly reduces radiation heat exchange, and can be widely applied to the fields of refrigerator heat preservation, fruit and vegetable preservation, food storage and the like.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (3)
1. A heat-insulating door body comprises two oppositely arranged metal door plates, a heat-insulating material structure clamped between the two metal door plates, and a supporting component for limiting deformation of the metal door plates;
the heat insulating material structure comprises more than one heat insulating material layers which are combined together, and support particles with low outgassing rate are distributed between two adjacent heat insulating material layers and/or inside the heat insulating material layers;
the supporting particles are made of a material with the heat conductivity coefficient not more than 0.2W/m.K;
the heat insulating material layer comprises a first reflecting layer, a second reflecting layer and a flame-retardant layer which are sequentially combined together;
more than one heat insulating material layers combined together are sewn together through a plurality of fire-proof wires;
the edge of the heat insulating material layer is covered by a fireproof edge;
The heating material layers between the two fireproof wires form a gap for fixing the supporting particles, and the fireproof edges and the fireproof wires are matched to ensure that the gap for accommodating the supporting particles between the two heat insulating material layers is sealed by the fireproof edges and the fireproof wires, so that the supporting particles are stably filled in the corresponding gaps;
The supporting assembly comprises a plurality of supporting seats arranged on the metal door plate, each supporting seat comprises an inner supporting part, an outer supporting part and a connecting rod used for connecting the inner supporting part and the outer supporting part, fixing holes matched with the connecting rods are formed in the metal door plate, and a heat insulation structure used for reducing the contact area is arranged on each supporting seat.
2. The heat-insulating door body according to claim 1, wherein the inner supporting portion is a hollow ring body sleeved at one end of the connecting rod.
3. The heat-insulating door body according to claim 1, wherein the supporting seat is provided with a diversion trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442164.5A CN111502506B (en) | 2020-05-22 | 2020-05-22 | A thermal insulation material structure and thermal insulation door body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010442164.5A CN111502506B (en) | 2020-05-22 | 2020-05-22 | A thermal insulation material structure and thermal insulation door body |
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| CN111502506B true CN111502506B (en) | 2025-08-05 |
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| KR20050095236A (en) * | 2004-03-25 | 2005-09-29 | 엘지전자 주식회사 | Door support-frame for refrigerator |
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| KR20200012273A (en) * | 2018-07-26 | 2020-02-05 | 남상민 | Double Vacuum Insulating Panel and Manufacturing Method Thereof |
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| DE4035051A1 (en) * | 1990-11-05 | 1992-05-07 | Jobst H Dr Ing Kerspe | Insulating, self-supporting, gas-tight casing - consists of joined metal sections with fibre filled interior, and profiled frame |
| JP2013002485A (en) * | 2011-06-14 | 2013-01-07 | Hitachi Appliances Inc | Vacuum thermal insulation material, and refrigerator using the same |
| WO2015182745A1 (en) * | 2014-05-30 | 2015-12-03 | 富士フイルム株式会社 | Heat-insulating film for window, heat-insulating material for window, and window |
| CN104595634A (en) * | 2015-01-26 | 2015-05-06 | 黄国平 | VIP (vacuum insulated panel) |
| CN205789896U (en) * | 2016-06-24 | 2016-12-07 | 营口希泰精密焊接科技有限公司 | A kind of practical cavity without magnetic vacuum |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6485805B1 (en) * | 1998-01-15 | 2002-11-26 | Cabot Corporation | Multilayer insulation composite |
| KR20050095236A (en) * | 2004-03-25 | 2005-09-29 | 엘지전자 주식회사 | Door support-frame for refrigerator |
| JP2018130933A (en) * | 2017-02-17 | 2018-08-23 | 日立化成株式会社 | Laminate complex and heat insulation material |
| KR20200012273A (en) * | 2018-07-26 | 2020-02-05 | 남상민 | Double Vacuum Insulating Panel and Manufacturing Method Thereof |
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| CN111502506A (en) | 2020-08-07 |
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