Air suction device, vacuum insulation panel and refrigeration equipment

Abstract

The utility model discloses an air suction device, a vacuum insulation panel and refrigeration equipment, and relates to the technical field of electrical equipment, and the air suction device comprises a shell, an air suction material and a sealing piece. The shell comprises a base and a cover body covering the base; the air suction material is arranged in the shell; the sealing piece is arranged at the joint of the base and the cover body, and the sealing piece can be broken under the extrusion effect to form a gap at the joint of the base and the cover body, so that gas outside the shell can enter the shell to be in contact with the gas suction material. Due to the fact that the sealing piece is arranged at the connecting position of the base and the cover body, due to the characteristic that the sealing piece is broken under the extrusion effect, the sealing piece can be broken by extruding the shell, a gap is formed in the connecting position of the base and the cover body, and gas and water outside the shell can enter the shell through the gap to be absorbed by the gas absorption material. The vacuum degree in the vacuum insulation panel can be improved, and the heat insulation performance of the vacuum insulation panel is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an air suction device, a vacuum insulation board and a refrigeration device. Background Art

[0002] Vacuum insulation panels are a new type of insulation board that has developed rapidly in recent years. They use the high vacuum inside to reduce the heat convection of the air and minimize the heat transfer inside. They are widely used in refrigerators, freezers and other refrigeration equipment. In order to ensure the vacuum inside the insulation panel and improve the insulation capacity, a getter is usually set inside the insulation panel, so that the getter can break the shell inside the insulation panel to improve the vacuum inside the insulation panel. The getter usually adopts a shell-and-tube structure, which stores chemical components for reducing air pressure, and a screw is set on the surface of the shell. After the screw is pressed to break the shell, the internal components of the getter can react with the air, moisture, etc. inside the insulation panel to improve the vacuum inside the insulation panel. However, in the process of pressing the screw on the surface of the shell, the screw will pierce the aluminum-plastic film on the surface of the insulation panel, causing the vacuum insulation panel to leak and affect the insulation performance. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an air suction device, which can break the seal by rolling to release the sealing effect of the shell, eliminates the screws, and effectively reduces the risk of puncturing the aluminum-plastic film.

[0004] The utility model also provides a vacuum insulation panel with the air suction device.

[0005] The utility model also provides a refrigeration device having the vacuum insulation panel.

[0006] The air suction device according to the first embodiment of the utility model is applied to a vacuum insulation panel, and the air suction device includes:

[0007] The housing comprises a base and a cover body disposed on the base;

[0008] A getter material is disposed in the housing; and

[0009] A seal is arranged at the connection between the base and the cover, and the seal can be broken under the action of extrusion to form a gap at the connection between the base and the cover, so that the gas outside the shell can enter the shell and contact the air-absorbing material.

[0010] According to the air suction device of the embodiment of the utility model, at least the following beneficial effects are achieved: the housing of the air suction device includes a base and a cover body, and a seal is provided at the connection between the base and the cover body. Due to the characteristic that the seal breaks under the extrusion, the seal can be broken by extruding the housing, so that a gap is generated at the connection between the base and the cover body, thereby releasing the sealing effect of the housing, and then the gas and moisture outside the housing can enter the housing through the gap to contact and react with the air suction material, and be absorbed by the air suction material. When the air suction device is applied to a vacuum insulation panel, the sealing effect of the air suction device can be released by rolling the vacuum insulation panel, so that the air suction device can absorb the gas and moisture in the vacuum insulation panel, and the vacuum degree in the vacuum insulation panel can be improved, and the thermal insulation performance of the vacuum insulation panel can be enhanced. Therefore, the screws can be eliminated, and the housing itself using the above structure will not puncture the aluminum-plastic film, which can effectively reduce the risk of puncturing the aluminum-plastic film and improve the reliability of the vacuum insulation panel.

[0011] According to some embodiments of the present utility model, the base includes a bottom wall and a first side wall, the first side wall is connected to the bottom wall and is arranged around the side edge of the bottom wall, and the bottom wall and the first side wall are enclosed to form a receiving groove;

[0012] The cover body comprises a top wall and a second side wall, wherein the second side wall is connected to the top wall and is arranged around the side edge of the top wall, the second side wall is located in the receiving groove, and at least a portion of the second side wall is spaced apart from the first side wall;

[0013] The seal is disposed between the first side wall and the second side wall.

[0014] According to some embodiments of the present invention, the sealing member is disposed around the outer circumference of the second side wall.

[0015] According to some embodiments of the present invention, the distance between the second side wall and the first side wall increases gradually from an end of the second side wall close to the bottom wall to an end of the second side wall far from the bottom wall.

[0016] According to some embodiments of the present invention, the sealing member is a glass member.

[0017] According to some embodiments of the present invention, the base includes a bottom wall, and the shell further includes a protrusion, and the protrusion is connected to a side of the cover body facing away from the bottom wall.

[0018] According to some embodiments of the present invention, the maximum width of the protrusion along the first direction is L, the maximum width of the cover along the first direction is L1, the first direction is parallel to the extension direction of the vacuum insulation panel, and satisfies: L / L1≤0.5.

[0019] According to some embodiments of the present invention, the protrusion is arranged in the middle of the cover body; the protrusion and the cover body are integrally formed.

[0020] The vacuum insulation panel according to the second embodiment of the utility model comprises:

[0021] The core material is provided with a mounting groove;

[0022] A membrane structure is disposed on the periphery of the core material; and

[0023] An air suction device is arranged in the installation groove, and the air suction device is the air suction device described in any of the above embodiments.

[0024] The vacuum insulation panel according to the embodiment of the utility model has at least the following beneficial effects: the air suction device of the first aspect embodiment is adopted, and the shell of the air suction device includes a base and a cover body. By arranging a seal at the connection between the base and the cover body, thanks to the characteristic of the seal that breaks under extrusion, the seal can be broken by extruding the vacuum insulation panel, so that a gap is generated at the connection between the base and the cover body, thereby releasing the sealing effect of the shell, and then the gas and moisture in the vacuum insulation panel can enter the shell through the gap and react with the air suction material, so that the air suction device can absorb the gas and moisture in the vacuum insulation panel, which can improve the vacuum degree in the vacuum insulation panel and enhance the thermal insulation performance of the vacuum insulation panel.

[0025] According to some embodiments of the present invention, the air suction device includes a protrusion, which is connected to the cover body and extends in a direction away from the cover body, and an end surface of the protrusion away from the cover body is flush with an inner surface of the membrane structure.

[0026] The refrigeration equipment according to the embodiment of the third aspect of the utility model comprises the vacuum insulation panel of the above embodiment.

[0027] The refrigeration equipment according to the embodiment of the utility model has at least the following beneficial effects: the vacuum insulation panel of the embodiment of the second aspect is adopted, and the vacuum insulation panel adopts an air suction device. The air suction device is provided with a seal at the connection between the base and the cover body. Thanks to the characteristic of the seal breaking under extrusion, the seal can be broken by extruding the vacuum insulation panel, so that a gap is generated at the connection between the base and the cover body, thereby releasing the sealing effect of the shell, and then the gas and moisture in the vacuum insulation panel can enter the shell through the gap and contact and react with the air suction material, so that the air suction device can absorb the gas and moisture in the vacuum insulation panel, which can improve the vacuum degree in the vacuum insulation panel, enhance the thermal insulation performance of the vacuum insulation panel, and thus improve the refrigeration effect of the refrigeration equipment.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0030] Figure 1 This is a schematic diagram of the structure of the air intake device according to an embodiment of the utility model;

[0031] Figure 2 A cross-sectional view of an air intake device according to an embodiment of the utility model;

[0032] Figure 3 A cross-sectional view of a vacuum insulation panel according to an embodiment of the present utility model;

[0033] Figure 4 middle Figure 2 A partial enlarged view of the middle A;

[0034] Figure 5 A cross-sectional view of a vacuum insulation panel according to another embodiment of the present invention;

[0035] Figure 6 It is a top view of the air suction device according to an embodiment of the utility model.

[0036] Figure Number:

[0037] Air suction device 100; housing 110; base 111; receiving groove 111a; bottom wall 1111; first side wall 1112;

[0038] Cover body 112; top wall 1121; second side wall 1122; raised portion 113; getter material 120; sealing member 130;

[0039] Vacuum insulation panel 200 ; core material 210 ; mounting groove 210 a ; membrane structure 220 . DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present utility model, "a plurality" refers to two or more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0043] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0044] As a new type of insulation board, vacuum insulation panel uses the high vacuum degree inside to reduce the heat convection of the air, minimize the internal heat transfer, achieve thermal insulation and even heat insulation effect, and is widely used in refrigeration equipment such as refrigerators and freezers.

[0045] In order to ensure that the vacuum degree in the vacuum insulation panel meets the requirements and improve the insulation capacity, generally speaking, a getter is set in the vacuum insulation panel to further absorb the moisture and air in the vacuum insulation panel to achieve the purpose of reducing the air pressure, thereby improving the vacuum degree of the vacuum insulation panel. The getter adopts a shell-and-tube structure, and its main components are one or more of silicon dioxide powder, aluminum oxide powder, graphite powder, etc., and a screw is fixed on the surface of the getter by tape.

[0046] The vacuum insulation panel includes a core material and an aluminum-plastic film wrapped around the core material. The current production process of the vacuum insulation panel is: first, grooves are made in the core material, the above-mentioned getter is placed in the groove, the core material and the getter are placed in the aluminum-plastic film as a whole, and finally the aluminum-plastic film is evacuated and sealed. After sealing, the screws on the surface of the getter are pressed to puncture the outer shell of the getter, so that the components inside the getter can contact the air and moisture inside the vacuum insulation panel to absorb the moisture and air inside the vacuum insulation panel, so that the vacuum degree inside the vacuum insulation panel can be further improved, so that the vacuum insulation panel can play a good thermal insulation performance.

[0047] However, in the process of pressing the screw, the screw is completely in contact with the aluminum-plastic film. Under the pressure of the screw, the aluminum-plastic film will be punctured by the screw, causing air leakage in the vacuum insulation panel and affecting the thermal insulation performance of the vacuum insulation panel.

[0048] In order to solve the above problems, the present application provides an air suction device and a vacuum insulation panel using the air suction device.

[0049] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the air intake device according to an embodiment of the utility model. Figure 2 It is a cross-sectional view of an air intake device of an embodiment of the utility model. The air intake device 100 includes a shell 110 and an air intake material 120 disposed in the shell 110. The air intake material 120 is a powder material that can be used to absorb air and moisture. For example, the air intake material 120 can react chemically with air or moisture. The air intake device 100 storing the air intake material 120 can be used in a vacuum insulation panel of a refrigeration equipment, so that the air intake device 100 can absorb air and moisture in the vacuum insulation panel to improve thermal insulation. Among them, the air intake material 120 can be one or more of silicon dioxide powder, aluminum oxide powder, graphite powder, etc.

[0050] The housing 110 is used as a carrier for carrying and accommodating the getter material 120. To facilitate the placement of the getter material 120 in the housing 110, refer to Figure 2 As shown, the housing 110 includes a base 111 and a cover 112 covering the base 111. It is understandable that the housing 110 needs to be designed to have high airtightness to seal and store the getter material 120 to prevent the getter material 120 from failing. The housing 110 can be a glass shell or a metal shell, etc. Specifically, the housing 110 in this embodiment is made of alloy, such as aluminum alloy, copper alloy or iron alloy, etc. The housing 110 is made of alloy, which is convenient for bending, stamping, plastic deformation, etc., and has good processability.

[0051] It is understandable that the air-intake device 100 is applied to the vacuum insulation panel. In order to allow the gas in the vacuum insulation panel to enter the housing 110 of the air-intake device 100 and react with the air-intake material 120, the housing 110 can be designed to be easily deformed and broken under the action of external force. Figure 2 The air intake device 100 further includes a seal 130 , which is disposed at the connection between the base 111 and the cover 112 . The seal 130 can be broken under the action of compression to form a gap at the connection between the base 111 and the cover 112 , so that the gas outside the shell 110 can enter the shell 110 and contact the air intake material 120 .

[0052] The seal 130 is made of a material with good airtightness and high brittleness. The seal 130 can be a glass part or a plastic part with high brittleness. The seal 130 has the performance of being easy to break under extrusion, and has good sealing performance when not broken. For example, the seal 130 is a glass part. Specifically, the glass is heated to a molten state, and then the molten glass liquid is filled into the connection between the base 111 and the cover 112. After the glass liquid is cooled and solidified, the final shape of the seal 130 is formed, and the internal space of the shell 110 can be closed. The internal space of the shell 110 is the storage space enclosed by the base 111, the cover 112 and the seal 130. The storage space is used to store the getter material 120, so as to achieve sealed storage of the getter material 120. For another example, the seal 130 is a plastic part. After the plastic is heated to a molten state, it is filled into the connection between the base 111 and the cover 112. After the plastic liquid is cooled, the internal space of the shell 110 can be closed.

[0053] Please refer to Figure 3 , Figure 3 This is a cross-sectional view of a vacuum insulation panel of an embodiment of the utility model. The vacuum insulation panel 200 includes a core material 210, a membrane structure 220 and an air suction device 100. The core material 210 can be a particle core material 210, a foam core material 210, a fiber core material 210, etc. Among them, the core material 210 can be provided with a mounting groove 210a, and the air suction device 100 is arranged in the mounting groove 210a. The membrane structure 220 is arranged on the periphery of the core material 210. The membrane structure 220 is a highly reflective barrier film, which has an inhibitory effect on radiation convection, and at the same time plays a role in isolating water and air to maintain the vacuum degree. For example, the membrane structure 220 can be an aluminum-plastic film, which has good sealing properties to ensure the thermal insulation of the vacuum insulation panel 200.

[0054] Specifically, in the process of setting the above-mentioned air suction device 100 in the vacuum insulation panel 200, the air suction device 100 is first placed in the installation groove 210a of the core material 210, and then the core material 210 and the air suction device 100 are placed in the membrane structure 220 as a whole (or the membrane structure 220 is laid on the outer peripheral surface of the core material 210). At this time, the membrane structure 220 has an opening to evacuate the inside of the core material 210, and the membrane structure 220 is sealed after the inside of the core material 210 is evacuated. In order to reduce the volume of the vacuum insulation panel 200 to meet the thin and light design, the vacuum insulation panel 200 needs to be squeezed as a whole, for example, by rolling, so that the overall thickness of the vacuum insulation panel 200 is reduced. During the rolling process of the vacuum insulation panel 200, an extrusion force will be generated on the air-intake device 100 in the core material 210, causing the shell 110 to deform to a certain extent, and at the same time, the seal 130 can be broken by the extrusion force, so that a gap is generated at the connection between the base 111 and the cover 112, thereby releasing the sealing effect of the shell 110, so that the gas and moisture outside the shell 110 (that is, the gas and moisture inside the vacuum insulation panel 200) can enter the shell 110 through the gap and contact with the air-intake material 120, and then the air-intake material 120 absorbs the gas and moisture inside the vacuum insulation panel 200, which can improve the vacuum degree inside the vacuum insulation panel 200 and keep the vacuum insulation panel 200 with good thermal insulation performance. Therefore, the screws can be eliminated, and the shell 110 itself using the above structure will not puncture the membrane structure 220, which can effectively reduce the risk of puncturing the membrane structure 220 and improve the reliability of the vacuum insulation panel 200.

[0055] In one embodiment, in order to make the sealing member 130 more easily broken under the external force, the sealing member 130 is a glass member. The sealing member 130 is formed by solidifying the glass liquid filled in the connection between the base 111 and the cover 112.

[0056] To facilitate forming a seal 130 at the connection between the base 111 and the cover 112, please refer to Figure 4 , Figure 4 for Figure 2 A partial enlarged view of the A in the middle. The base 111 includes a bottom wall 1111 and a first side wall 1112. The first side wall 1112 is connected to the bottom wall 1111 and is arranged around the side edge of the bottom wall 1111. The bottom wall 1111 and the first side wall 1112 are enclosed to form a receiving groove 111a. The cover body 112 includes a top wall 1121 and a second side wall 1122. The second side wall 1122 is connected to the top wall 1121 and is arranged around the side edge of the top wall 1121. The second side wall 1122 is located in the receiving groove 111a. At least a portion of the second side wall 1122 is spaced apart from the first side wall 1112. The sealing member 130 is arranged between the first side wall 1112 and the second side wall 1122.

[0057] It can be understood that at least part of the second side wall 1122 is spaced from the first side wall 1112 in the following two situations: a part of the second side wall 1122 is in contact with the first side wall 1112 (for example, it can be an interference fit to achieve the connection between the base 111 and the cover 112), and a part of the second side wall 1122 is spaced from the first side wall 1112 to form an assembly gap, and the seal 130 can be disposed in the assembly gap. Alternatively, any part of the second side wall 1122 is not in contact with the first side wall 1112, that is, the two are completely non-contacting, and a whole annular gap is formed between the second side wall 1122 and the first side wall 1112.

[0058] Through the above arrangement, the base 111 and the cover body 112 are not connected by the end of the first side wall 1112 and the end of the second side wall 1122, nor are they overlapped by the end of the first side wall 1112 and the top wall 1121. In this embodiment, the second side wall 1122 of the cover body 112 is arranged in the receiving groove 111a of the base 111, that is, the base 111 surrounds the cover body 112 through the first side wall 1112, and at least part of the cover body 112 is located in the receiving groove 111a of the base 111, so that the molten glass liquid can be directly poured from above the base 111 and the cover body 112 into the gap between the first side wall 1112 and the second side wall 1122, so that the glass liquid can flow by itself and fill the gap between the first side wall 1112 and the second side wall 1122, without the need for a jig, which is more convenient to operate. Moreover, a larger gap can be left between the first side wall 1112 of the base 111 and the second side wall 1122 of the cover body 112, so that more glass liquid can be filled, and the glass liquid filled between the first side wall 1112 and the second side wall 1122 is not easy to flow away under the constraints of the two (when the base 111 and the cover body 112 are butt-jointed or overlapped, the glass liquid poured at the end of the first side wall 1112 can easily flow away), making it easier to form a stable and regular seal 130, and easier to achieve a good seal for the shell 110.

[0059] In addition, the seal 130 is arranged in the gap between the first side wall 1112 and the second side wall 1122, which is equivalent to the seal 130 being embedded between the base 111 and the cover body 112. Through the connection effect after the glass liquid solidifies, the connection firmness between the base 111 and the cover body 112 can be enhanced, and the air intake device 100 can be prevented from being vibrated, causing the connection between the base 111 and the cover body 112 to loosen and affect the air tightness of the shell 110, thereby avoiding failure of the air intake material 120.

[0060] The bottom wall 1111 can be designed as a plane, a curved surface, or a conical surface. Similarly, the top wall 1121 can be designed as a plane, a curved surface, or a conical surface.

[0061] In one embodiment, the seal 130 is arranged around the outer circumference of the second side wall 1122, so that the seal 130 is annular. Then, each position between the first side wall 1112 and the second side wall 1122 is filled with the seal 130. When the seal 130 is broken by the extrusion, a plurality of gaps can be formed between the first side wall 1112 and the second side wall 1122, so that the gas and moisture in various parts of the core material 210 can enter the shell 110 through the plurality of gaps and be absorbed by the air-absorbing material 120, thereby further improving the vacuum degree of the vacuum insulation panel 200.

[0062] Specifically, the first side wall 1112 and the second side wall 1122 may not contact each other at all, so that a whole annular gap is formed between the first side wall 1112 and the second side wall 1122 , so that the seal 130 can be disposed around the outer circumference of the second side wall 1122 .

[0063] Please continue to refer to Figure 4 The distance between the second side wall 1122 and the first side wall 1112 increases gradually from an end of the second side wall 1122 close to the bottom wall 1111 to an end far from the bottom wall 1111 .

[0064] Then, the distance between the end of the second side wall 1122 close to the bottom wall 1111 and the first side wall 1112 is small, and the distance between the end of the second side wall 1122 away from the top wall 1121 and the first side wall 1112 is large. That is to say, the second side wall 1122 can be inclined relative to the first side wall 1112, so that when the glass liquid is filled between the first side wall 1112 and the second side wall 1122, the glass liquid has better fluidity, so that the glass liquid can flow more evenly and quickly and fill the gap between the first side wall 1112 and the second side wall 1122, thereby preventing the generation of air holes and cracks after the glass liquid solidifies and affecting the air tightness of the seal 130.

[0065] Since the air suction device 100 is generally arranged inside the core material 210 of the vacuum insulation panel 200, it can fully absorb the gas and moisture in the core material 210. In order to produce a greater squeezing effect on the shell 110 during the rolling operation of the vacuum insulation panel 200, so as to ensure that the sealing member 130 can be broken, such as Figure 2 As shown, the air suction device 100 further includes a protrusion 113 , which is connected to a side of the cover 112 facing away from the bottom wall 1111 .

[0066] Then, by providing a protrusion 113 on the surface of the cover body 112 away from the bottom wall 1111, the protrusion 113 is closer to the outer surface of the vacuum insulation panel 200 than the cover body 112, so that when the vacuum insulation panel 200 is rolled, the extrusion force applied to the vacuum insulation panel 200 can be transmitted to the cover body 112 through the protrusion 113. At the same time, the extrusion deformation of the protrusion 113 can drive the cover body 112 to deform to a certain extent synchronously, which can produce a greater extrusion effect on the seal 130, thereby preventing the suction device 100 from being far away from the outer surface of the vacuum insulation panel 200, resulting in a weaker extrusion effect on the shell 110 and causing the seal 130 to fail to break.

[0067] The number of the protrusions 113 may be one, two, three or more. The specific number of the protrusions 113 may be determined according to the size of the shell 110 , and this embodiment does not impose any limitation on this.

[0068] The raised portion 113 may extend in a columnar shape in a direction away from the surface of the cover body 112 . The raised portion 113 may have a variety of contour shapes, such as square, circular, elliptical, etc., which is not limited in this embodiment.

[0069] Specifically, when the air suction device 100 is assembled to the vacuum insulation panel 200, the height of the protrusion 113 can be designed according to the specific placement position of the air suction device 100. For example, please refer to Figure 5 , the figure is a cross-sectional view of a vacuum insulation panel of another embodiment of the utility model. When the air suction device 100 is placed in the middle of the core material 210 (when it is far away from the membrane structure 220 in the thickness direction), the protrusion 113 can be designed to have a higher height, so that the protrusion 113 extends to the membrane structure 220 close to the vacuum insulation panel 200, so that when the vacuum insulation panel 200 is rolled, the protrusion 113 is closer to the rolling mechanism such as a rolling wheel, so that the protrusion 113 can withstand a larger extrusion force, and the extrusion force is transmitted to the cover body 112 through the protrusion 113, so that the cover body 112 exerts a larger extrusion on the seal 130, which can ensure that the seal 130 is broken by the extrusion. Figure 3 As shown, when the suction device 100 is placed at the edge of the core material 210 (closer to the membrane structure 220 in the thickness direction), the cover body 112 itself is closer to the rolling mechanism, and the cover body 112 itself can be subjected to a greater squeezing effect. At this time, the protrusion 113 can be designed to be relatively short.

[0070] In one embodiment, if Figure 5As shown, the end surface of the protrusion 113 away from the cover 112 is flush with the inner surface of the membrane structure 220. It can be understood that the inner surface of the membrane structure 220 refers to the side of the membrane structure 220 that contacts the outer peripheral surface of the core material 210. Then, when the vacuum insulation panel 200 is rolled, since the end surface of the protrusion 113 is flush with the inner surface of the membrane structure 220, the rolling mechanism and the protrusion 113 are only separated by the thickness of the membrane structure 220, so that the protrusion 113 is almost directly subjected to the extrusion force of the rolling mechanism, which can produce a strong extrusion effect on the seal 130, making the seal 130 more easily broken under the extrusion.

[0071] Specifically, during the manufacturing process of the vacuum insulation panel 200, the above-mentioned installation groove 210a is first formed on the core material 210. After the suction device 100 is placed in the installation groove 210a, the membrane structure 220 is laid on the outer periphery of the core material 210. At this time, there is easily a gap between the protrusion 113 and the membrane structure 220. Then the core material 210 is evacuated. During the vacuuming process, the gas inside the core material 210 is sucked away, the core material 210 will shrink, and the corresponding membrane structure 220 will also shrink and fit with the end face of the protrusion 113, so as to achieve the end face of the protrusion 113 flush with the inner surface of the membrane structure 220.

[0072] Please combine Figure 2 , Figure 3 And refer to Figure 6 , Figure 6 The top view of the air suction device of the embodiment of the utility model. The maximum width of the protrusion 113 along the first direction is L, and the maximum width of the cover 112 along the first direction is L1, which satisfies: L / L1≤0.5. The first direction is parallel to the extension direction of the vacuum insulation panel 200, that is, Figure 3 Medium horizontal direction.

[0073] That is, the maximum width of the protrusion 113 along the first direction cannot exceed half of the maximum width of the cover 112 along the first direction. Taking the contours of the protrusion 113 and the cover 112 as circular as an example, the diameter of the protrusion 113 is less than or equal to the radius of the cover 112.

[0074] It is understandable that when the protrusion 113 is at a relatively small width, when the protrusion 113 is pressed downward by the extrusion force, the protrusion 113 applies the extrusion force to the cover 112, so that the outer edge of the cover 112, that is, the second side wall 1122, will be deformed and stretched outward, causing the seal 130 to be squeezed and broken, and forming a gap between the base 111 and the cover 112. When the width of the protrusion 113 is too large, the protrusion 113 is pressed downward by the extrusion force, which will cause the entire cover 112 to be pressed downward, and the outer edge of the cover 112 is not easy to be deformed and stretched outward, but moves downward to contact the bottom wall 1111 of the base 111 and bends and deforms inward, which easily causes the cover 112 to abut against the bottom wall 1111 and block the gap, resulting in the gas outside the shell 110 being unable to enter the shell 110 and contact the air-absorbing material 120. Therefore, in this embodiment, the width of the protrusion 113 is constrained through the above-mentioned setting. By setting L / L1≤0.5, the width of the protrusion 113 is not too large, so as to ensure that the gas outside the shell 110 can enter the shell 110 and contact the getter material 120, so that the getter material 120 can absorb the gas and moisture in the vacuum insulation panel 200, so as to improve the vacuum degree of the vacuum insulation panel 200.

[0075] When the number of the protrusions 113 is set to one, in order to ensure that all parts of the seal 130 can be crushed by the extrusion, so that the gas and moisture in all directions of the core material 210 can enter the shell 110, Figure 2 As shown, the protrusion 113 is disposed in the middle of the cover body 112 .

[0076] It is easy to understand that by setting the protrusion 113 in the middle of the cover body 112, the distances from various parts of the outer peripheral wall of the protrusion 113 to the second side wall 1122 of the cover body 112 are the same or not much different, so that the extrusion force can be evenly transmitted to the second side wall 1122 through the protrusion 113, so that the extrusion strength of various parts of the seal 130 is roughly the same, avoiding that a certain part of the seal 130 is subjected to excessive extrusion while other parts are subjected to weak extrusion, so that all parts of the seal 130 can be subjected to sufficient extrusion strength to break, so that a large number of gaps can be formed between the first side wall 1112 and the second side wall 1122, so that the gas and moisture in all directions in the core material 210 can enter the shell 110 through the nearest gap, further improving the vacuum degree in the vacuum insulation panel 200, and effectively improving the thermal insulation performance of the vacuum insulation panel 200.

[0077] In one embodiment, if Figure 6 As shown, the contour shape of the protrusion 113 is designed to be circular, and the contour shape of the cover body 112 is also designed to be circular. The protrusion 113 is arranged at the center of the cover body 112, and the radial distance from the outer peripheral wall of the protrusion 113 to the first side wall 1112 is the same.

[0078] In order to facilitate the processing and production of the air suction device 100, the protrusion 113 and the cover body 112 are integrally formed. Specifically, the protrusion 113 and the cover body 112 are integrally stamped by a mold. By setting the protrusion 113 and the cover body 112 to be integrally formed, the protrusion 113 and the cover body 112 are an integrated structure. On the one hand, there is sufficient connection strength between the protrusion 113 and the cover body 112 to prevent the protrusion 113 from being squeezed and deformed and loosened from the cover body 112. On the one hand, the squeezing effect on the protrusion 113 can be better transmitted to the cover body 112, so that the cover body 112 can be deformed synchronously with the protrusion 113 when it is squeezed, while ensuring that the seal 130 is more easily broken by squeezing.

[0079] The present application also provides a refrigeration device, which uses the vacuum insulation panel 200 conceived based on any of the above embodiments to achieve thermal insulation. The refrigeration device can be an electrical appliance such as a refrigerator or a freezer.

[0080] Since the refrigeration equipment adopts the vacuum insulation panel 200 with the above-mentioned air suction device 100, the air suction device 100 is provided with a seal 130 at the connection between the base 111 and the cover 112. Thanks to the characteristic of the seal 130 breaking under extrusion, the seal 130 can be broken by extruding the vacuum insulation panel 200, so that a gap is generated at the connection between the base 111 and the cover 112, thereby releasing the sealing effect of the shell 110, and then the gas and moisture in the vacuum insulation panel 200 can enter the shell 110 through the gap and react with the air suction material 120, so that the air suction device 100 can absorb the gas and moisture in the vacuum insulation panel 200, which can improve the vacuum degree in the vacuum insulation panel 200, enhance the thermal insulation performance of the vacuum insulation panel 200, and thus improve the refrigeration effect of the refrigeration equipment.

[0081] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A suction device, characterized in that: Applied to vacuum insulation panels, the air suction device comprises: The housing comprises a base and a cover body disposed on the base; A getter material is disposed in the housing; and A seal is arranged at the connection between the base and the cover, and the seal can be broken under the action of extrusion to form a gap at the connection between the base and the cover, so that the gas outside the shell can enter the shell and contact the air-absorbing material.

2. The air suction device according to claim 1, characterized in that The base comprises a bottom wall and a first side wall, wherein the first side wall is connected to the bottom wall and is arranged around a side edge of the bottom wall, and the bottom wall and the first side wall are enclosed to form a receiving groove; The cover body comprises a top wall and a second side wall, wherein the second side wall is connected to the top wall and is arranged around the side edge of the top wall, the second side wall is located in the receiving groove, and at least a portion of the second side wall is spaced apart from the first side wall; The seal is disposed between the first side wall and the second side wall.

3. The air suction device according to claim 2, characterized in that: The sealing member is disposed around the outer circumference of the second side wall.

4. The air suction device according to claim 2, characterized in that: The distance between the second side wall and the first side wall increases gradually from an end of the second side wall close to the bottom wall to an end of the second side wall far from the bottom wall.

5. The air suction device according to any one of claims 1 to 4, characterized in that: The sealing member is a glass member.

6. The air suction device according to any one of claims 1 to 4, characterized in that: The base includes a bottom wall, and the shell further includes a protrusion, which is connected to a side of the cover body away from the bottom wall.

7. The air suction device according to claim 6, characterized in that The maximum width of the protrusion along the first direction is L, the maximum width of the cover along the first direction is L1, the first direction is parallel to the extension direction of the vacuum insulation panel, and satisfies: L / L1≤0.

5.

8. The air suction device according to claim 6, characterized in that The protrusion is arranged in the middle of the cover body; the protrusion is integrally formed with the cover body.

9. A vacuum insulation panel, characterized in that: include: The core material is provided with a mounting groove; A membrane structure is arranged on the periphery of the core material; and An air suction device is arranged in the installation groove, and the air suction device is the air suction device according to any one of claims 1 to 8.

10. The vacuum insulation panel according to claim 9, characterized in that: The air suction device comprises a protrusion, which is connected to the cover body and extends in a direction away from the cover body, and an end surface of the protrusion away from the cover body is flush with the inner surface of the membrane structure.

11. Refrigeration equipment, characterized in that The vacuum insulation panel comprises the vacuum insulation panel according to claim 9 or 10.

Images