Vacuum insulated panel getter

Abstract

The utility model provides a vacuum insulated panel getter, which relates to the technical field of getters and comprises a getter body with a cavity for accommodating adsorption powder, the getter body comprises at least one shell communicated with the cavity, one end of the getter body back to the cavity is open, and the adsorption powder is sequentially arranged from the cavity to the open end of the shell; the sealing end is positioned at the open end of the shell and is flat; the division bar is arranged at the sealing end and blocks a part of space, connected with the channel at the sealing end, in the shell and outside the shell; the parting strip partially shields the sealed end, and the inside and the outside of the shell are communicated through the sealed end, so that the parting strip blocks adsorbed powder in the shell under the condition that the normal use of the adsorbed powder in the shell is ensured, the adsorbed powder is prevented from falling out of the sealed end, a four-claw nail is prevented from puncturing a hole in a pipe body, and the normal use of a getter is not influenced; meanwhile, the flatness of the getter is also influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of getters, and particularly relates to a getter for a vacuum insulation panel. Background Art

[0002] A vacuum insulation panel (VIP) is a highly efficient thermal insulation material that reduces gas heat conduction by creating a high vacuum state inside the panel, thereby achieving the thermal insulation effect. The getter of the vacuum insulation panel, commonly known as a "getter", is a material used to absorb trace gases present inside the panel to maintain the vacuum inside the panel and prevent the thermal conduction of gas molecules from affecting the thermal insulation effect.

[0003] Currently, the getter for the vacuum insulation panel uses a long strip-shaped metal shell, which contains getter powder and drying powder. For example, in the patent document of "A Composite Room Temperature Getter for Vacuum Insulation Panels" proposed by the company with the publication number CN218924262U, when the existing getter for the vacuum insulation panel is in use, four-claw nails are often used to puncture the tube body, so that the powder inside the tube comes into contact with the outside air to achieve the gas absorption effect. However, the following deficiencies still exist in the above operations:

[0004] Since the whole of the shell is in a sealed state, if four-claw nails are used to puncture and open the tube body, on the one hand, it causes trouble for subsequent opening and use, and it is impossible to know whether the metal shell is completely punctured, which easily leads to the inability to connect the getter powder inside the shell with the outside. On the other hand, when the four-claw nails press on the shell, it is very easy to leave marks of the four-claw nails on the shell, affecting the flatness of the getter and causing trouble in controlling the performance indexes of the getter. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model solves the technical problem that the surface of the getter needs to be additionally opened, and the specific technical solution is as follows:

[0006] A getter for a vacuum insulation panel includes a getter body having a cavity for accommodating adsorption powder. The getter body includes at least one shell communicating with the cavity, one end of which facing away from the cavity is open. The adsorption powder is sequentially arranged from the cavity to the open end of the shell; a sealing end, which is located at the open end of the shell and is flat; and a partition strip, which is arranged at the sealing end and blocks a part of the space of the connection channel between the inside and the outside of the shell at the sealing end.

[0007] Preferably, the shell is single and is strip-shaped, and the adsorption powder is sequentially arranged from the cavity to the sealing end.

[0008] Preferably, the number of the partition strips is several, and they are arranged at equal distances in the direction flush with the end face of the sealing end.

[0009] Preferably, several of the partition strips are wavy.

[0010] Preferably, several of the partition strips are C-shaped or U-shaped, and the openings face the sealed end of the housing.

[0011] Preferably, several of the partition strips are zigzag.

[0012] Preferably, the partition strips are staggeredly distributed in the opening direction of the housing.

[0013] Preferably, several of the partition strips are symmetrically distributed along the reference plane passing through the midpoint of the long side of the end face of the sealing end.

[0014] Preferably, the sealing end is further provided with a blocking strip between adjacent partition strips.

[0015] Preferably, the adsorbent powder includes barium-lithium alloy powder, a first desiccant, metal oxide, and a second desiccant that are sequentially filled in the housing.

[0016] From the above technical solutions, it can be seen that the present utility model has the following beneficial effects:

[0017] In the present utility model, partition strips are provided at the sealing end of the housing, so that the partition strips partially block the sealing end. The inside and outside of the housing communicate through the sealing end. While ensuring the normal use of the adsorbent powder in the housing, the partition strips block the adsorbent powder in the housing, preventing the adsorbent powder from falling out from the sealing end and avoiding the need for additional openings on the getter, so as not to affect the normal use of the getter. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of multiple housings of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of two housings of the present utility model;

[0020] Figure 3 It is a schematic cross-sectional structural diagram of multiple housings of the present utility model;

[0021] Figure 4 It is a schematic structural diagram of a single housing of the present utility model;

[0022] Figure 5 It is a schematic cross-sectional structural diagram of a first embodiment of a single housing of the present utility model;

[0023] Figure 6 It is a schematic cross-sectional structural diagram of a second embodiment of a single housing of the present utility model;

[0024] Figure 7 It is a schematic cross-sectional structural diagram of a third embodiment of a single housing of the present utility model;

[0025] Figure 8 This is a schematic cross-sectional structure diagram of the fourth embodiment of a single housing of the present utility model.

[0026] In the figure: 10, getter body; 101, housing; 102, sealing end; 20, adsorption powder; 201, barium-lithium alloy powder; 202, first desiccant; 203, metal oxide; 204, second desiccant; 30, partition strip; 301, blocking strip. Detailed implementation manners

[0027] The following combines the accompanying drawings and specific embodiments to elaborate on the present utility model in detail. Before elaborating on the technical solutions of each embodiment of the present utility model, the nouns and terms involved are explained. In this specification, components with the same name or the same reference numeral represent similar or identical structures, and are for illustrative purposes only.

[0028] As Figures 1-3 shown, a getter for a vacuum insulation panel includes a getter body 10 with a cavity for accommodating an adsorption powder 20. The getter body 10 includes at least one housing 101 communicating with the cavity, one end of which facing away from the cavity is open, and the adsorption powder 20 is sequentially arranged from the cavity towards the open end of the housing 101; a sealing end 102, located at the open end of the housing 101, which is flat; and a partition strip 30, which is arranged at the sealing end 102 and blocks a part of the space in the connection channel between the inside of the housing 101 and the outside of the housing 101 at the sealing end 102. Among them, the number of the housings 101 can be set to multiple, such as two (as Figure 2 shown), several (as Figure 1 shown). The open end facilitates the communication between the adsorption powder 20 inside the housing 101 and the air outside the housing 101, facilitating the adsorption powder 20 to achieve the air absorption effect. The sealing end 102 is flat, and it can be formed by hot pressing, molding, or melting. Preferably, it is formed by hot pressing. The partition strip 30 is a strip formed after hot pressing. The partition strip 30 is used to block the sealing end 102, so that the flat shape of the sealing end 102 can still connect the adsorption powder 20 inside the housing 101 with the air outside the housing 101. At the same time, the partition strip 30 blocks the adsorption powder 20 inside the housing 101 to reduce the outflow of the adsorption powder 20 inside the housing 101 from the flat opening.

[0029] As Figures 4-8 shown, the housing 101 is single and is in a long strip shape. The adsorption powder 20 is sequentially arranged from the cavity towards the sealing end 102. Among them, one end of the housing 101 facing the cavity is sealed, and the other end is open. The sealed end facilitates the filling of the adsorption powder 20 towards the inside.

[0030] The number of the spacers 30 is several, and they are arranged at equal distances in the flush direction of the end face of the sealing end 102. Among them, multiple spacers 30 can be arranged, and they are arranged at equal distances on the sealing end 102, so that the spacers 30 are evenly distributed on the sealing end 102, improving the blocking effect on the adsorbed powder 20 in the housing 101.

[0031] Specifically, the shape of the spacer 30 is as follows:

[0032] As the first embodiment of the present application:

[0033] As Figure 3 and Figure 5 shown, the spacer 30 is wavy. A single wavy spacer 30 can be arranged, that is, a single wavy spacer 30 occupies the entire sealing end 102, so that the adsorbed powder 20 in the housing 101 is blocked by the peaks and valleys of the single wavy spacer 30. Multiple ones can also be arranged. In the present application, multiple ones are preferably used. Several wavy spacers 30 are arranged at equal distances on the sealing end 102. The peak ends of the spacers 30 block the adsorbed powder 20 in the housing 101, while the valley ends of the spacers 30 store the adsorbed powder 20 flowing out of the housing 101, so as to reduce the outflow of the adsorbed powder 20 from the housing 101.

[0034] As the second embodiment of the present application:

[0035] As Figure 4 and Figure 6 shown, several spacers 30 are C-shaped or U-shaped, and the openings face the sealing end of the housing 101. Among them, the C-shaped or U-shaped spacers 30 are hot-pressed and formed from the sealing end 102, and the openings of the spacers 30 face the sealing end of the housing 101. Several spacers 30 are staggeredly distributed in the opening direction of the housing 101, so that the gap between two adjacent spacers 30 is blocked by the rear-row spacers 30, effectively preventing the adsorbed powder 20 in the housing 101 from falling out of the housing 101. At the same time, the air outside the housing 101 can also communicate with the adsorbed powder 20 in the housing 101 through the staggeredly arranged spacers 30. The spacers 30 effectively prevent the adsorbed powder 20 in the housing 101 from falling out, and at the same time can also ensure the communication between the adsorbed powder 20 and the air outside the housing 101, which is helpful for the use of the getter body 10.

[0036] As the third embodiment of the present application:

[0037] As Figure 4 and Figure 7 shown, several spacers 30 are zigzag. Among them, the spacer 30 can be provided with at least a single folding point. In this application document, two folding points are provided. Several spacers 30 are staggeredly distributed in the opening direction of the housing 101. The gap between adjacent spacers 30 communicates between the inside and outside of the housing 101, facilitating the adsorbed powder 20 to achieve the air intake effect. At the same time, the arrangement of the spacers 30 effectively prevents the adsorbed powder 20 from falling out of the housing 101.

[0038] As the fourth embodiment in itself:

[0039] As Figure 4 and Figure 8 shown, a plurality of partition strips 30 are symmetrically distributed along the reference plane where the midpoint of the long side of the sealing end 102 is located. Among them, the plurality of partition strips 30 are symmetrically distributed on the sealing end 102, and the plurality of partition strips 30 are equidistantly distributed in the opening direction of the housing 101, so that the partition strips 30 block the adsorbed powder 20 in the housing 101, effectively preventing the adsorbed powder 20 from falling out of the housing 101. Since there is a straight-line gap from the housing 101 towards the opening direction between adjacent partition strips 30, a blocking strip 301 for blocking some adjacent partition strips 30 is further provided at the sealing end 102. The blocking strip 301 is used to block this straight-line gap, causing the gaps between the plurality of partition strips 30 to be misaligned, improving the blocking effect on the adsorbed powder 20, and at the same time ensuring the internal and external communication of the housing 101 at the sealing end 102, which is helpful for the use of the getter body 10.

[0040] As Figure 3 and Figures 5-8 shown, the adsorbed powder 20 includes a barium-lithium alloy powder 201, a first desiccant 202, a metal oxide 203, and a second desiccant 204 that are sequentially filled in the housing 101. Among them, the hydrogen released by the reaction of the barium-lithium alloy with water will burn and explode under the combined action of heat and alloy combustion. To solve this problem, the barium-lithium alloy is pre-mixed with a metal powder with lower activity and then tableted. The mixing mass ratio of the barium-lithium alloy and the metal powder is 0.1:0.9 - 0.2:0.8. The metal powder effectively disperses the barium-lithium alloy and maintains a good gas absorption effect after forming. When encountering water, the reaction rate of the barium-lithium alloy with water is slow, effectively solving the safety hazard of the barium-lithium alloy.

[0041] The first desiccant 202 separates the metal oxide 203 from the barium-lithium alloy powder 201 to prevent them from undergoing a chemical reaction. And the metal oxide 203 can absorb the residual hydrogen in the vacuum insulation panel and the residual hydrogen inside the barium-lithium alloy powder 201 to improve the heat insulation performance of the vacuum insulation panel.

[0042] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A vacuum insulation panel getter, comprising a getter body (10) having a cavity for accommodating adsorbed powder (20), characterized in that: The getter body (10) comprises: at least one shell (101) connected to the cavity, one end of which is open facing away from the cavity, and the adsorption powder (20) is arranged in sequence from the cavity to the open end of the shell (101); A sealed end (102), located at the open end of the housing (101), which is flat; and A spacer (30) is provided at the sealing end (102) and blocks a portion of the space inside the shell (101) and the connecting channel outside the shell (101) at the sealing end (102).

2. The vacuum insulation panel getter according to claim 1, characterized in that: The shell (101) is single and has a long strip shape, and the adsorbed powder (20) is arranged in sequence from the cavity to the sealing end (102).

3. The vacuum insulation panel getter according to claim 1, characterized in that: The number of the partition bars (30) is several and they are arranged equidistantly in the direction flush with the end surface of the sealing end (102).

4. The vacuum insulation panel getter according to claim 1, characterized in that: A plurality of the spacers (30) are wavy in shape.

5. The vacuum insulation panel getter according to claim 1, characterized in that: A plurality of the spacers (30) are C-shaped or U-shaped, and their openings face the sealing end of the shell (101).

6. The vacuum insulation panel getter according to claim 1, characterized in that: A plurality of the spacers (30) are in a broken line shape.

7. The vacuum insulation panel getter according to claim 5 or 6, characterized in that: The partition bars (30) are staggered and distributed in the opening direction of the shell (101).

8. The vacuum insulation panel getter according to claim 1 or 6, characterized in that: The plurality of spacers (30) are symmetrically distributed along a reference plane where the midpoint of the long side of the end surface of the sealing end (102) is located.

9. The vacuum insulation panel getter according to claim 8, characterized in that: The sealing end (102) is also provided with a blocking bar (301) between adjacent blocking bars (30).

10. The vacuum insulation panel getter according to claim 1, characterized in that: The adsorption powder (20) comprises barium-lithium alloy powder (201), a first desiccant (202), a metal oxide (203) and a second desiccant (204) which are sequentially filled in the shell (101).

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