Vacuum insulated panel

Abstract

The utility model discloses a vacuum heat insulation plate, and belongs to the technical field of heat preservation materials, the vacuum heat insulation plate comprises a plate body and at least one air suction line, the at least one air suction line is arranged in the plate body in the length direction of the plate body, and the air suction line is used for sucking air in the plate body. According to the vacuum heat insulation plate, the linear air suction lines are arranged in the length direction of the plate body, it can be guaranteed that the air suction lines are evenly distributed in the length direction of the plate body, and therefore the air suction lines can suck air in the plate body in the length direction of the plate body; the probability of local residual gas of the plate body caused by non-uniform distribution of the getter is reduced; the linear air suction line is used as a getter, and on the premise of the same air suction effect, the size of the air suction line is small, and the occupied space is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of thermal insulation materials, and particularly relates to a vacuum insulation plate. BACKGROUND

[0002] The vacuum insulation plate is widely used in the fields of buildings, container transportation, refrigerators, freezers and the like in recent years due to its light weight and low thermal conductivity, which is far lower than that of traditional thermal conductive materials. The vacuum insulation plate is composed of a core material, a film material and a getter, and the effect of the getter has an important influence on the reliability and service life of the vacuum insulation plate.

[0003] The main function of the getter in the vacuum insulation plate is that, on the one hand, the getter can absorb the residual gas in the vacuum insulation plate during the preparation process of the vacuum insulation plate due to the incomplete vacuumization, and on the other hand, the getter can absorb the gas permeating into the vacuum insulation plate during the use of the vacuum insulation plate, thereby prolonging the service life of the vacuum insulation plate.

[0004] However, the getter is usually concentrated in a certain position of the vacuum insulation plate during the preparation process of the vacuum insulation plate at present, so that the getter absorption of each part of the vacuum insulation plate is uneven, which can easily cause the phenomenon of local gas residue in the plate, and the thermal insulation performance of the vacuum insulation plate is unstable. SUMMARY

[0005] The application aims to at least solve the technical problem of local gas residue in the plate in the vacuum insulation plate to some extent. To this end, the application provides a vacuum insulation plate, and a getter line can absorb the gas in the plate body in the length direction of the plate body, thereby reducing the probability of local residual gas in the plate body due to uneven distribution of the getter.

[0006] The vacuum insulation plate provided by the application comprises:

[0007] a plate body;

[0008] at least one getter line, the at least one getter line is arranged in the plate body in the length direction of the plate body, and the getter line is used for absorbing the gas in the plate body.

[0009] According to the vacuum insulation plate provided by the application, the getter lines are all arranged in the plate body.

[0010] According to the vacuum insulation plate provided by the application, the length of the getter line is less than the length of the plate body.

[0011] According to the vacuum insulation plate provided by the application, the getter line can be bent.

[0012] According to the vacuum insulation plate of the embodiment of the present application, the plate body has at least two connecting sections connected with each other, the two connecting sections are arranged in a bent manner, and the getter wire is arranged in each of the connecting sections.

[0013] According to the vacuum insulation plate of the embodiment of the present application, the same getter wire is arranged in the two adjacent connecting sections.

[0014] According to the vacuum insulation plate of the embodiment of the present application, a fold line is formed between the two adjacent connecting sections, and the getter wire is arranged perpendicularly to the fold line.

[0015] According to the vacuum insulation plate of the embodiment of the present application, the getter wire is a metal wire.

[0016] According to the vacuum insulation plate of the embodiment of the present application, the plate body includes but is not limited to a circular plate, a triangular plate, a trapezoidal plate or an I-shaped plate, and the extension direction of the getter wire includes but is not limited to a straight line, a circle or a fold line.

[0017] According to the vacuum insulation plate of the embodiment of the present application, a plurality of getter wires are arranged, and the plurality of getter wires are arranged in an intersecting manner or in an array.

[0018] The one or more technical solutions in the embodiment of the present application have at least one of the following technical effects:

[0019] The linear getter wire is arranged along the length direction of the plate body, which can ensure that the getter wire is uniformly distributed in the length direction of the plate body, so that the getter wire can absorb the gas inside the plate body in the length direction of the plate body, and the probability of local residual gas of the plate body due to uneven distribution of the getter is reduced; the linear getter wire is used as the getter, and the volume of the getter wire is small under the premise of the same getter effect, and the occupied space is reduced.

[0020] Additional aspects and advantages of the present application will be described in part in the following description, some of which will become apparent from the following description, or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 One of the structure schematic diagrams of the vacuum insulation plate is shown;

[0023] Figure 2 Another structure schematic diagram of the vacuum insulation plate is shown;

[0024] Figure 3 Fig. 3 shows a structural schematic diagram of a vacuum insulation plate;

[0025] Figure 4 Fig. 4 shows a structural schematic diagram of a vacuum insulation plate.

[0026] Reference signs:

[0027] 100, plate body; 110, connecting section;

[0028] 200, air suction line. DETAILED DESCRIPTION

[0029] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0030] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0032] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those of ordinary skill in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present application.

[0033] The main function of the getter in the vacuum insulation board is that, on the one hand, the getter can absorb the residual gas in the vacuum insulation board during the preparation of the vacuum insulation board due to the incomplete vacuumization, and on the other hand, the getter can absorb the gas permeating into the vacuum insulation board during the use of the vacuum insulation board, thereby prolonging the service life of the vacuum insulation board.

[0034] However, in the current preparation process of the vacuum insulation board, the getter is often concentrated in a certain position of the vacuum insulation board, so that the getter absorption is uneven in each part of the vacuum insulation board, which is easy to cause the phenomenon of local gas residue in the board, and the heat preservation performance of the vacuum insulation board is unstable.

[0035] Especially in the case that the length of the vacuum insulation board is relatively long, it is difficult for the getter to be uniformly distributed in the length direction of the vacuum insulation board, which is easy to cause the phenomenon of local gas residue in the board, and affects the vacuum degree of the vacuum insulation board.

[0036] The application will be described below with reference to the accompanying drawings Figures 1-4 The application will be described below with reference to the accompanying drawings

[0037] The utility model embodiment provides a kind of vacuum insulation board, as shown in Figures 1 to 2 The vacuum insulation board includes board body 100 and at least one getter line 200, and the at least one getter line 200 is arranged inside the board body 100 along the length direction of the board body 100. The getter line 200 is used to absorb the gas inside the board body 100.

[0038] The linear getter line 200 is arranged along the length direction of the board body 100 (such as the a direction in Figure 1 The linear getter line 200 can be uniformly distributed in the length direction of the board body 100, so that the getter line 200 can absorb the gas inside the board body 100 in the length direction of the board body 100, and the probability of local gas residue in the board body 100 due to uneven distribution of the getter is reduced. The linear getter line 200 is used as the getter, and the volume of the getter line 200 is smaller under the premise of the same getter effect, which reduces the occupied space.

[0039] The getter line 200 is suitable for absorbing the gas inside the board body 100. There is at least one getter line 200, and at least one getter line 200 is arranged inside the board body 100 along the length direction of the board body 100, to solve the problem of local gas residue in the vacuum insulation board due to the excessive length of the vacuum insulation board in the prior art. The getter line 200 can be one, two, three, four or five. The specific number of the getter line 200 is not particularly limited in the utility model embodiment, and only at least one getter line 200 needs to be arranged along the length direction of the board body 100.

[0040] The getter line 200 is continuous in the length direction of the plate body 100, that is, the getter line 200 has no breakpoint, so that the getter line 200 is continuous and uniform in the length direction of the plate body 100, and the residual gas inside the vacuum insulation plate is avoided as much as possible to ensure the heat preservation performance of the vacuum insulation plate; compared with the loose getter, the linear getter line 200 is more uniform as a whole, that is, the cross-sectional area of the getter line 200 in the extension direction is consistent, which is more conducive to the uniform distribution of the getter line 200 in the length direction of the plate body 100, reduces the residual amount of gas inside the plate body 100, and reduces the processing difficulty.

[0041] Compared with the loose getter, the linear getter line 200 is not easy to scatter, reducing the waste caused by powder falling during processing; it should be noted that the length and diameter of the getter line 200 can be set according to the size of the vacuum insulation plate, and when the width and thickness of the vacuum insulation plate are determined, the diameter of the getter line 200 is determined, at this time, the getter line 200 can be cut according to the different lengths of different vacuum insulation plates to adapt to vacuum insulation plates of different lengths, facilitating the control of the amount of getter.

[0042] It can be understood that the getter line 200 can be formed by processing the getter, and the conventional state of the getter is powder. By processing the powder-shaped getter into a linear getter line 200, the structure of the getter can be more compact while ensuring the effect of absorbing the gas inside the plate body 100, reducing the phenomenon of powder falling, and facilitating the uniform arrangement of the getter inside the plate body 100. The linear structure is convenient to take and cut, and simplifies the processing difficulty of the vacuum insulation plate.

[0043] As shown in Figures 1 to 2 , in some embodiments, the getter line 200 is entirely arranged in the plate body 100, that is, after the vacuum insulation plate is pumped to a vacuum state, the getter line 200 is completely located inside the plate body 100, preventing the getter line 200 from protruding from the plate body 100; generally, the plate body 100 includes a core material and a barrier film wrapped outside the core material, and it can be understood that the getter line 200 is arranged inside the core material to avoid the getter line 200 protruding outside the core material to pierce the barrier film; the getter line 200 can be arranged at the middle of the plate body 100 in the width direction (such as the b direction in Figure 1 ), avoiding the getter line 200 protruding from the plate body 100 in the width direction of the plate body 100; the getter line 200 can be arranged in the thickness direction (such as the t direction in Figure 2The middle part of the plate body 100 in the c direction (the length direction of the air suction line 200) is perpendicular to the thickness direction of the plate body 100, so that the air suction line 200 does not extend out of the plate body 100 in the thickness direction of the plate body 100; thus, the air suction line 200 is prevented from extending out of the plate body 100 and piercing the barrier film, which causes the vacuum insulation plate to lose the heat preservation performance.

[0044] It should be noted that the at least one air suction line 200 is arranged inside the plate body 100 along the length direction of the plate body 100, which means that the air suction line 200 extends along the length direction of the plate body 100, and the air suction line 200 can be a straight line or a curved line, and the air suction line 200 can be arranged along the center line of the plate body 100 or can be arranged obliquely, and the present application does not particularly limit the extension path of the air suction line 200, as long as the air suction line 200 extends along the length direction of the plate body 100 from one end to the other end and does not extend out of the plate body 100.

[0045] As shown in FIG. 1, Figures 1 to 2 In some embodiments, the length of the air suction line 200 is less than the length of the plate body 100, so as to ensure that the air suction line 200 is limited inside the plate body 100 and does not extend out of the plate body 100, and the air suction line 200 is prevented from piercing the barrier film and causing heat preservation failure. Since the overall size of the plate body 100 is reduced after vacuum extraction, if the length of the air suction line 200 is equal to the length of the plate body 100, the air suction line 200 is likely to extend out of the plate body 100 during the vacuum extraction process due to the reduction in the length of the plate body 100, which causes the barrier film to be damaged.

[0046] As shown in FIG. 1, Figures 3 to 4 In some embodiments, the air suction line 200 can be bent, so that the air suction line 200 can be arranged according to the specific shape of the plate body 100, so that the air suction line 200 has greater flexibility to adapt to plate bodies 100 of different shapes; for irregular and curved plate bodies 100, the bent air suction line 200 can more flexibly extend to various positions of the plate body 100, accurately suck air, and reduce the possibility of air remaining in the local part of the vacuum insulation plate. The air suction line 200 can be bent according to different shapes of the plate body 100, so that the air suction line 200 is closer to the contour of the plate body 100, so as to reduce the risk of the air suction line 200 extending out of the plate body 100.

[0047] In the related art, the vacuum insulation plate can be curved according to the use requirement, however, the curved shape easily affects the effect of vacuum extraction, causes air to be retained in the vacuum insulation plate, reduces the vacuum rate of the vacuum insulation plate, and causes poor thermal insulation performance. For example, the vacuum insulation plate has two curved sub-plates, and when processing, vacuum is extracted from one side of the vacuum insulation plate. Due to the influence of the curve, it is difficult for the gas to move from one curved sub-plate to the other sub-plate, and the gas is easily retained in the vacuum insulation plate, affecting the vacuum degree of the vacuum insulation plate.

[0048] As shown in Figures 3 to 4 In some embodiments, the plate body 100 has at least two connected segments 110 connected to each other, the two connected segments 110 are arranged to be bent, and the connected segments 110 are each provided with a getter wire 200. The getter wire 200 can absorb gas in the connected segments 110 to ensure the vacuum degree in each connected segment 110 and reduce the possibility of gas being retained in the plate body 100 due to bending.

[0049] As shown in Figures 3 to 4 In some embodiments, the same getter wire 200 is arranged in the adjacent two connected segments 110, and the same getter wire 200 extends to different connected segments 110. The gas in the adjacent two connected segments 110 can be absorbed by one getter wire 200, which can save the amount of getter wire 200. Since the getter wire 200 is continuous, the getter wire 200 can perform gas absorption work on the connection between the two connected segments 110, avoiding gas retention at the connection between the two connected segments 110.

[0050] As shown in Figures 3 to 4 In some embodiments, a fold line is formed between the adjacent two connected segments 110, and the getter wire 200 is arranged perpendicularly to the fold line. On the one hand, the getter wire 200 can absorb the gas at the fold line position, i.e., the connection between the two connected segments 110, avoiding the formation of a thermal bridge at the connection between the two connected segments 110. On the other hand, the perpendicular arrangement of the getter wire 200 and the fold line enables the getter wire 200 to be arranged as much as possible along the middle part of the plate body 100, avoiding the getter wire 200 from extending out of the plate body 100 and piercing the barrier film.

[0051] In some embodiments, the getter wire 200 is a metal wire, which is easy to bend and stretch, facilitating the shaping of the getter wire 200. The metal wire can be an alloy material or a metal material, for example, the metal wire can be at least one of tantalum (Zr), titanium (Ti) and at least one of aluminum (Al), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), nickel (Ni), and carbon (C).

[0052] In some embodiments, the plate body 100 includes, but is not limited to, a circular plate, a triangular plate, a trapezoidal plate, or an I-shaped plate, and different shapes of the plate body 100 enable the finished product of the vacuum heat insulation plate to meet different use scenarios to meet different use requirements; the extension direction of the getter line 200 includes, but is not limited to, a straight line, a circle, or a broken line, etc. The shape of the getter line 200 can be set according to the specific shape of the plate body 100 to process various special-shaped vacuum heat insulation plates.

[0053] In some embodiments, the getter line 200 is provided in multiple numbers, and the multiple getter lines 200 can have a better gettering effect to ensure the vacuum degree of the vacuum heat insulation plate, so that the vacuum heat insulation plate has good heat preservation performance; the multiple getter lines 200 are arranged in intersection or in array, so as to avoid as much as possible the local gas residue in the plate body 100, and improve the heat preservation performance of the vacuum heat insulation plate.

[0054] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0055] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the scope of protection required by the present application.

[0056] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vacuum insulation panel, characterized in that, The plate body comprises: a plate body; at least one gas suction line arranged inside the plate body along the length direction of the plate body, the gas suction line being used for sucking gas inside the plate body.

2. The vacuum insulation panel according to claim 1, characterized in that The gas suction line is arranged inside the plate body.

3. The vacuum insulation panel according to claim 1, characterized in that The length of the gas suction line is less than the length of the plate body.

4. Vacuum insulation panel according to any one of claims 1 to 3, characterized in that The gas suction line can be bent.

5. A vacuum insulation panel according to any one of claims 1 to 3, characterised in that, The plate body has at least two connecting sections connected with each other, the two connecting sections being arranged in a bent manner, and the connecting sections each having the gas suction line arranged therein.

6. A vacuum insulation panel according to claim 5, characterised in that, The same gas suction line is arranged in the two adjacent connecting sections.

7. A vacuum insulation panel according to claim 5, characterised in that, A fold line is formed between the two adjacent connecting sections, and the gas suction line is arranged perpendicularly to the fold line.

8. A vacuum insulation panel according to any one of claims 1 to 3, characterised in that, The gas suction line is a metal wire.

9. Vacuum insulation panel according to any of claims 1 to 3, characterized in that The plate body comprises a circular plate, a triangular plate, a trapezoidal plate or an I-shaped plate, and the extension direction of the gas suction line comprises a straight line, a circle or a fold line.

10. Vacuum insulation panel according to any of claims 1 to 3, characterized in that The gas suction line is arranged in a plurality of forms, and the plurality of gas suction lines are arranged in an intersecting manner or in an array.

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