CN214535158U

CN214535158U - Vacuum heat-insulating plate

Info

Publication number: CN214535158U
Application number: CN202120016410.0U
Authority: CN
Inventors: 方文盛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-10-29
Anticipated expiration: 2031-01-05

Abstract

The application discloses vacuum insulation panel includes: a first covering body with a first accommodating vacuum space; a second covering body with a second containing vacuum space; and the core material is arranged in the second vacuum accommodating space, and the second covering body is arranged in the first vacuum accommodating space. According to the application, the vacuum insulation panel passes through the isolated effect of first cover body to air and moisture, just the second cover body with the core material holding is in the first holding vacuum space, make the second cover body with the core material is in the air and the moisture environment of low concentration, and then has reduced the air and moisture infiltration it the speed of core material, and then has satisfied the requirement that vacuum insulation panel keeps high heat preservation performance for a long time.

Description

Vacuum heat-insulating plate

Technical Field

The application relates to the field of heat insulation materials, in particular to a vacuum heat insulation plate.

Background

Vacuum insulation panels (i.e., VI P) are used in many insulation applications, including insulation of buildings and other applications (such as refrigeration units, etc.). Such panels typically include an insulating "core" of thermally insulating material, and the insulating "core" is enclosed or wrapped in a jacket. In addition, the envelope is evacuated and sealed to form a vacuum, thereby insulating heat transfer and improving the heat insulating performance of the vacuum insulation panel.

In actual production, since the core material layer of the vacuum insulation panel is extremely sensitive to the permeation of gas and moisture, the envelope is generally made of a barrier film capable of blocking gas and moisture. Meanwhile, the interior of the vacuum heat-insulating plate can be dried and vacuumized during production, so that an environment with high vacuum degree and high dryness is formed, and the heat insulation and heat preservation performance of the vacuum heat-insulating plate is guaranteed.

SUMMERY OF THE UTILITY MODEL

However, the inventors have intensively studied and found that during the use of the vacuum insulation panel, gas and moisture slowly permeate through the barrier film and enter the interior of the core material of the vacuum insulation panel, thereby affecting the insulation performance of the insulation "core". In addition, as the internal air pressure rises and the moisture content increases, the heat insulation performance of the vacuum heat insulation plate is remarkably reduced, and the requirement of the vacuum heat insulation plate for keeping high heat insulation performance for a long time is further influenced.

Therefore, how to maintain the core material of the vacuum insulation panel with high thermal insulation performance for a long time is a problem to be solved urgently.

An object of the application is to provide a vacuum insulation panel, and the problem that it will solve is: how to delay the air and the moisture from permeating into the vacuum insulation panel so as to meet the requirement of keeping the high heat preservation performance of the vacuum insulation panel for a long time.

The application is realized by the following technical scheme:

this scheme provides a vacuum insulation panel, and it includes:

a first covering body with a first accommodating vacuum space;

a second covering body with a second containing vacuum space; and

a core material, a first metal layer and a second metal layer,

the core material is installed in the second containing vacuum space, and the second covering body is installed in the first containing vacuum space.

In the scheme, the first covering body isolates most of air and moisture in the air, so that the air and the moisture in the space between the first covering body and the second covering body become thin, and the air and the moisture at the position are difficult to permeate into the second covering body.

Compared with the vacuum insulation panel with only one layer of diaphragm, the scheme delays the time for air and moisture to enter the core material through the isolation effect of the first covering body and the second covering body on the air and the moisture, and further meets the requirement for enabling the vacuum insulation panel to keep high heat insulation performance for a long time.

In the vacuum insulation panel, a desiccant for absorbing moisture and a gas adsorbent for adsorbing gas are filled between the first covering body and the second covering body.

In the vacuum insulation panel, the first covering body is a barrier film for blocking air and moisture, and the second covering body is a barrier film for blocking air and moisture.

Preferably, the vacuum insulation panel further comprises: and the third covering body is provided with a third accommodating vacuum space, and the first covering body is hermetically installed in the third accommodating vacuum space.

The beneficial effect of this application is: through the application, it passes through the isolated effect of first cover to air and moisture, just the second cover with the core material holding is in the first holding vacuum space, makes the second cover with the core material is in the air and the moisture environment of low concentration. In a word, compared with the prior art, the internal and external air pressure of the second covering body is obviously reduced, the inside of the second covering body is easier to keep a state close to vacuum, the mutual collision between gas molecules of a fine microporous structure of the core material, namely gas heat conduction and convection heat conduction, is avoided, the speed of the core material for air and moisture to permeate is further reduced, the air permeation is further delayed to enter the inside of the second covering body, and the requirement that the vacuum insulation plate keeps high heat insulation performance for a long time can be met.

Drawings

FIG. 1 is a schematic view of a vacuum insulation panel according to one embodiment of the present application;

FIG. 2 is a schematic view of an exploded view of the vacuum insulation panel of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic representation of a front view of the vacuum insulation panel of FIG. 1;

fig. 5 is a schematic sectional view at B-B of fig. 4.

The designations in the figures have the following meanings:

100-a first covering; 101-a first containing vacuum space; 200-a second cover; 201-a second containing vacuum space; 300-a core material; 400-a gap; 1000-vacuum insulation panel.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

The scheme is further illustrated by the following examples:

as shown in fig. 1 to 5, in this embodiment, a vacuum insulation panel 1000 includes: a first covering body 100 having a first receiving vacuum space 101; a second covering body 200 having a second receiving vacuum space 201; the core material 300 having the function of insulating heat transfer is installed in the second receiving vacuum space 201, and the second cover 200 is installed in the first receiving vacuum space 101.

Core material 300 may be composed of a micro-porous insulation material.

The vacuum insulation panel of the embodiment additionally adds the first housing covering body and forms the first accommodating space for accommodating the vacuum space 101, so that the difference between the internal pressure and the external pressure of the second housing covering body 200 at the inner side is obviously reduced, the infiltration of water vapor is delayed, and the heat insulation performance of the whole product of the vacuum insulation panel 1000 is improved.

The first cover 100 is a barrier film for blocking air and moisture, and the second cover 200 is a barrier film for blocking air and moisture.

The first vacuum-accommodating space 101 in the first covering body 100 is a sealed space, the second vacuum-accommodating space 201 in the second covering body 200 is a sealed space, and both the first vacuum-accommodating space 101 and the second vacuum-accommodating space 201 are set to be close to the vacuum space. In addition, the first covering body 100 and the second covering body 200 are made of a barrier film for isolating air and moisture. It should be noted that, in the present embodiment, the material of the first covering body 100 and the second covering body 200 may be made of other materials capable of blocking air and moisture, such as a metal plate or a plastic plate.

As described above, when the second covering body 200 is placed in the first receiving vacuum space 101, since the first covering body 100 isolates the external air and moisture, the concentration of the air and moisture lower than the external environment of the first covering body 100 can be maintained in the first receiving vacuum space 101 for a long time, so that the first receiving vacuum space 101 is in a state of being near vacuum and dry. Meanwhile, since the concentration of air and moisture in the first receiving vacuum space 101 is lower than that of air and moisture in the atmosphere, the air and moisture in the first receiving vacuum space 101 are not easily permeated through the second covering body 200 and enter the second receiving vacuum space 201. Thereby ensuring that the environment inside the second receiving vacuum space 201 is in a drier state compared to the first receiving vacuum space 101.

Therefore, the core material 300 is placed in the second accommodating vacuum space 201, and compared with a single-layer barrier film packaging scheme, the double-layer packaging of the vacuum insulation panel 1000 can ensure that the core material 300 is not affected by air and moisture, so as to ensure that the vacuum insulation panel maintains high heat insulation performance for a long time.

As shown in fig. 5, a desiccant for absorbing moisture and a gas adsorbent for adsorbing gas are filled between the first cover 100 and the second cover 200.

Wherein, the gap 400 is a space between the first covering body 100 and the second covering body 200. The gap 400 is filled with a desiccant and a gas adsorbent to maintain a vacuum and dry environment in the first vacuum receiving space 101, thereby ensuring a vacuum and dry environment in the second vacuum receiving space 201 and improving the heat insulation performance of the core material 300.

Word interpretation: vacuum insulation panel (i.e., vacuum insulation panel): the composite material is one of vacuum heat insulating materials, is formed by compounding a filling core material and a vacuum protection surface layer, and effectively avoids heat transfer caused by air convection, so that the heat conductivity coefficient can be greatly reduced to 0.002-0.004w/m.k, which is 1/10 of the heat conductivity coefficient of the traditional heat insulating material.

A barrier film: the film is a multilayer film formed by extruding a material with strong gas barrier property and polyolefin with strong heat seaming property and water barrier property simultaneously.

The materials and physical and chemical parameters of the core material, the first covering body and the second covering body (i.e. the vacuum protection surface layer) can refer to chinese patent application CN 201780074760.9.

In addition, in another modification, the vacuum insulation panel 1000 further includes: and a third covering body having a third receiving vacuum space, wherein the first covering body 100 is hermetically installed in the third receiving vacuum space. Thereby, the time for air and moisture to enter the core material is further delayed.

In the description of the present application, moreover, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the embodiments of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the embodiments of the present application.

In embodiments of the present application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A vacuum insulation panel (1000), characterized in that the vacuum insulation panel (1000) comprises:

a first covering body (100) having a first accommodating vacuum space (101);

a second covering body (200) with a second containing vacuum space (201); and

a core material (300) for forming a core material,

the core material (300) is hermetically installed in the second accommodating vacuum space (201), and the second covering body (200) is hermetically installed in the first accommodating vacuum space (101).

2. Vacuum insulation panel (1000) according to claim 1, wherein a desiccant for absorbing moisture is placed between the first covering (100) and the second covering (200).

3. The vacuum insulation panel (1000) according to claim 1 wherein a gas adsorbent for adsorbing gas is placed between the first covering body (100) and the second covering body (200).

4. The vacuum insulation panel (1000) according to claim 1 wherein said first covering (100) is a barrier film for blocking air and moisture and said second covering (200) is a barrier film for blocking air and moisture.

5. The vacuum insulation panel (1000) according to claim 1 wherein said vacuum insulation panel (1000) further comprises: and the third covering body is provided with a third accommodating vacuum space, and the first covering body (100) is hermetically installed in the third accommodating vacuum space.