WO2025256340A1 - 吸气装置、真空绝热板及制冷设备 - Google Patents

吸气装置、真空绝热板及制冷设备

Info

Publication number
WO2025256340A1
WO2025256340A1 PCT/CN2025/095127 CN2025095127W WO2025256340A1 WO 2025256340 A1 WO2025256340 A1 WO 2025256340A1 CN 2025095127 W CN2025095127 W CN 2025095127W WO 2025256340 A1 WO2025256340 A1 WO 2025256340A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
vacuum insulation
insulation panel
sidewall
protrusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/095127
Other languages
English (en)
French (fr)
Inventor
圣业明
刘欣
裴志彬
陈吞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Hualing Co Ltd
Midea Group Co Ltd
Hefei Midea Refrigerator Co Ltd
Original Assignee
Hefei Hualing Co Ltd
Midea Group Co Ltd
Hefei Midea Refrigerator Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hefei Hualing Co Ltd, Midea Group Co Ltd, Hefei Midea Refrigerator Co Ltd filed Critical Hefei Hualing Co Ltd
Publication of WO2025256340A1 publication Critical patent/WO2025256340A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/06Arrangements using an air layer or vacuum
    • F16L59/065Arrangements using an air layer or vacuum using vacuum
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/06Walls
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/24Structural elements or technologies for improving thermal insulation
    • Y02A30/249Glazing, e.g. vacuum glazing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/22Glazing, e.g. vaccum glazing

Definitions

  • This application relates to the field of electrical equipment technology, and in particular to an air intake device, a vacuum insulation panel, and a refrigeration device.
  • Vacuum insulation panels are a new type of insulation material that has developed rapidly in recent years. They utilize the high vacuum level inside to reduce heat convection from the air, minimizing heat transfer within the panel, and are widely used in refrigeration equipment such as refrigerators and freezers.
  • a getter is usually placed inside.
  • the getter increases the vacuum level by breaking the shell inside the insulation panel.
  • the getter typically uses a shell-and-tube structure, storing chemical components to reduce air pressure.
  • a screw is located on the surface of the shell; pressing the screw causes the shell to rupture, allowing the internal components of the getter to react with the air and moisture inside the insulation panel, thus increasing the vacuum level.
  • the screw can puncture the aluminum-plastic film on the surface of the insulation panel, causing air leakage and affecting the insulation performance.
  • This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes an air suction device that can release the sealing function of the shell by causing the seal to break through the seal through roller pressing, eliminating the need for screws and effectively reducing the risk of puncturing the aluminum-plastic film.
  • This application also proposes a vacuum insulation panel having the above-mentioned air intake device.
  • This application also proposes a refrigeration device having the aforementioned vacuum insulation panel.
  • a suction device is applied to a vacuum insulation panel, the suction device comprising:
  • the housing includes a base and a cover disposed on the base;
  • a suction material is disposed within the housing.
  • a sealing element is disposed at the connection between the base and the cover.
  • the sealing element is capable of breaking under compression to form a gap at the connection between the base and the cover, so that gas outside the housing can enter the housing and come into contact with the air-absorbing material.
  • the suction device has at least the following beneficial effects:
  • the housing of the suction device includes a base and a cover.
  • a sealing element is provided at the connection between the base and the cover. Benefiting from the characteristic of the sealing element to break under pressure, pressing the housing causes the sealing element to break, creating a gap at the connection between the base and the cover. This releases the sealing effect of the housing, allowing gas and moisture from outside the housing to enter through the gap and react with the suction material, where they are absorbed.
  • the suction device is applied to a vacuum insulation panel, rolling the vacuum insulation panel releases the sealing effect of the suction device, allowing it to absorb gas and moisture from inside the panel. This increases the vacuum level within the panel and enhances its thermal insulation performance. Therefore, screws can be eliminated, and the housing itself, with the above structure, will not puncture the aluminum-plastic film, effectively reducing the risk of puncturing the film and improving the reliability of the vacuum insulation panel.
  • the base includes a bottom wall and a first side wall, the first side wall being connected to the bottom wall and disposed around the side edge of the bottom wall, and the bottom wall and the first side wall forming a receiving groove.
  • the cover includes a top wall and a second side wall.
  • the second side wall is connected to the top wall and is disposed 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 sidewall and the second sidewall.
  • the seal is disposed around the outer peripheral surface of the second sidewall.
  • the distance between the second sidewall and the first sidewall increases from the end of the second sidewall closer to the bottom wall to the end farther from the bottom wall.
  • the sealing element is a glass element.
  • the base includes a bottom wall
  • the housing further includes a protrusion connected to the side of the cover opposite to the bottom wall.
  • 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 board, and satisfies: L/L1 ⁇ 0.5.
  • the protrusion is located in the middle of the cover; the protrusion is integrally formed with the cover.
  • the vacuum insulation panel includes:
  • the core material has mounting grooves
  • a membrane structure is disposed on the outer periphery of the core material.
  • An air intake device is disposed in the mounting groove, and the air intake device is the air intake device described in any of the above embodiments.
  • the vacuum insulation panel has at least the following beneficial effects:
  • the suction device of the first aspect embodiment has a housing comprising a base and a cover.
  • a sealing element is provided at the connection between the base and the cover.
  • the vacuum insulation panel can be compressed to break the sealing element, creating a gap at the connection between the base and the cover. This releases the sealing effect of the housing, allowing gas and moisture inside the vacuum insulation panel to enter the housing through the gap and react with the suction material.
  • This enables the suction device to absorb the gas and moisture inside the vacuum insulation panel, increasing the vacuum level and enhancing the thermal insulation performance of the vacuum insulation panel.
  • the air intake device includes a protrusion connected to the cover and extending in a direction away from the cover, wherein the end face of the protrusion away from the cover is flush with the inner surface of the membrane structure.
  • the refrigeration device includes the vacuum insulation panel of the above embodiments.
  • the refrigeration equipment has at least the following beneficial effects:
  • the vacuum insulation panel of the second aspect embodiment employs a suction device.
  • This suction device has a sealing element at the connection between the base and the cover. Benefiting from the characteristic of the sealing element breaking under pressure, squeezing the vacuum insulation panel causes the sealing element to break, creating a gap at the connection between the base and the cover. This releases the sealing effect of the shell, allowing gas and moisture inside the vacuum insulation panel to enter the shell through the gap and react with the suction material.
  • the suction device can then absorb the gas and moisture inside the vacuum insulation panel, increasing the vacuum level and enhancing the heat insulation performance of the vacuum insulation panel, thereby improving the refrigeration effect of the refrigeration equipment.
  • Figure 1 is a schematic diagram of the structure of the air intake device according to an embodiment of this application.
  • Figure 2 is a cross-sectional view of the air intake device according to an embodiment of this application.
  • Figure 3 is a cross-sectional view of a vacuum insulation panel according to an embodiment of this application.
  • Figure 4 shows a magnified view of point A in Figure 2;
  • Figure 5 is a cross-sectional view of a vacuum insulation panel according to another embodiment of this application.
  • Figure 6 is a top view of the air intake device according to an embodiment of this application.
  • Icon labels Inhalation device 100; housing 110; base 111; receiving groove 111a; bottom wall 1111; first side wall 1112; 112 cover; 1121 top wall; 1122 second side wall; 113 protrusion; 120 suction material; 130 seal; Vacuum insulation panel 200; core material 210; mounting groove 210a; membrane structure 220.
  • Vacuum insulation panels as a new type of insulation material, utilize the high vacuum inside to reduce the heat convection of the air, minimizing the heat transfer inside and achieving the effect of heat insulation or even heat insulation. They are widely used in refrigeration equipment such as refrigerators and freezers.
  • a getter is typically placed inside. This getter further absorbs moisture and air within the panel, reducing air pressure and thus increasing the vacuum level.
  • the getter typically employs a shell-and-tube structure, and its main components are one or more of the following: silica powder, alumina powder, and graphite powder.
  • a screw is fixed to the surface of the getter using adhesive tape.
  • Vacuum insulation panels consist of a core material and an aluminum-plastic film covering the outer perimeter of the core material.
  • the current manufacturing process for vacuum insulation panels is as follows: First, grooves are cut into the core material, and the aforementioned getter is placed into the grooves. Then, the core material and getter are placed inside the aluminum-plastic film. Finally, the aluminum-plastic film is vacuumed and sealed. After sealing, the screws on the surface of the getter are pressed to puncture its outer shell, allowing the components inside the getter to contact the air and moisture inside the vacuum insulation panel. This allows the getter to absorb the moisture and air within the panel, further increasing the vacuum level and enabling the vacuum insulation panel to perform its excellent thermal insulation properties.
  • the screw is completely pressed against 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 heat insulation performance of the vacuum insulation panel.
  • this application provides an air intake device and a vacuum insulation panel using the air intake device.
  • FIG. 1 is a schematic diagram of the structure of the suction device according to an embodiment of this application
  • Figure 2 is a cross-sectional view of the suction device according to an embodiment of this application.
  • the suction device 100 includes a housing 110 and a suction material 120 disposed within the housing 110.
  • the suction material 120 is a powder material capable of absorbing air and moisture.
  • the suction material 120 can chemically react with air or moisture.
  • the suction device 100 storing the suction material 120 can be applied to the vacuum insulation panel of a refrigeration equipment, enabling the suction device 100 to absorb air and moisture within the vacuum insulation panel and improve insulation performance.
  • the suction material 120 can be one or more of silica powder, alumina powder, graphite powder, etc.
  • the housing 110 serves as a carrier for supporting and containing the suction material 120.
  • the housing 110 includes a base 111 and a cover 112 that covers the base 111. It is understood that the housing 110 needs to be designed with high airtightness to seal and store the suction material 120, preventing its failure.
  • the housing 110 can be a glass shell or a metal shell, etc.
  • the housing 110 is made of an alloy, such as aluminum alloy, copper alloy, or iron alloy. The alloy construction of the housing 110 facilitates bending, stamping, and plastic deformation, resulting in good machinability.
  • the suction device 100 is used in a vacuum insulation panel.
  • the housing 110 can be designed to easily deform and break under external force.
  • the suction device 100 also includes a seal 130, which is disposed at the connection between the base 111 and the cover 112. The seal 130 can break under compression to form a gap at the connection between the base 111 and the cover 112, thereby allowing gas outside the housing 110 to enter the housing 110 and contact the suction material 120.
  • the sealing element 130 is made of a material with good airtightness and high brittleness.
  • the sealing element 130 can be glass or a brittle plastic, etc.
  • the sealing element 130 is designed to be easily broken under pressure, yet maintain good sealing performance when intact. For example, if the sealing element 130 is glass, specifically, the glass is heated to a molten state, and then the molten glass is filled into the connection between the base 111 and the cover 112. After the molten glass cools and solidifies, the final shape of the sealing element 130 is formed, thus sealing the internal space of the housing 110.
  • the internal space of the housing 110 is the storage space formed by the base 111, the cover 112, and the sealing element 130, used to store the absorbent material 120, thereby achieving sealed storage of the absorbent material 120.
  • the sealing element 130 is plastic, the plastic is heated to a molten state and then filled into the connection between the base 111 and the cover 112. After the molten plastic cools, the internal space of the housing 110 is sealed.
  • 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 granular core material 210, a foam core material 210, a fiber core material 210, etc.
  • the core material 210 may be provided with an installation groove 210a, and the air suction device 100 is disposed within the installation groove 210a.
  • the membrane structure 220 is disposed on the outer periphery of the core material 210.
  • the membrane structure 220 is a high-reflectivity barrier membrane, which inhibits radiation convection and simultaneously serves to maintain the vacuum level by isolating water and air.
  • the membrane structure 220 can be an aluminum-plastic film, which has good sealing properties and ensures the thermal insulation performance of the vacuum insulation panel 200.
  • the suction device 100 is first placed into the mounting groove 210a of the core material 210, and then the core material 210 and the suction device 100 are placed into the membrane structure 220 (or the membrane structure 220 is laid on the outer periphery of the core material 210). At this time, the membrane structure 220 has an opening to evacuate the inside of the core material 210. After evacuating the inside of the core material 210, the membrane structure 220 is sealed.
  • the vacuum insulation panel 200 In order to reduce the volume of the vacuum insulation panel 200 to meet the requirements of a thin and light design, the vacuum insulation panel 200 needs to be compressed as a whole, for example, by using a rolling method, so as to reduce the overall thickness of the vacuum insulation panel 200.
  • the suction device 100 inside the core material 210 is subjected to compressive force, causing the shell 110 to deform to a certain extent.
  • the sealing element 130 may shatter under the compressive force, creating a gap at the connection between the base 111 and the cover 112.
  • the seal 130 is made of glass.
  • the seal 130 is formed by the solidification of molten glass filling the junction of the base 111 and the cover 112.
  • 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 surrounds the side edge of the bottom wall 1111.
  • the bottom wall 1111 and the first side wall 1112 together form a receiving groove 111a.
  • the cover 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 surrounds the side edge of the top wall 1121.
  • the second side wall 1122 is located within the receiving groove 111a. At least a portion of the second side wall 1122 is spaced apart from the first side wall 1112.
  • the seal 130 is disposed between the first side wall 1112 and the second side wall 1122.
  • the second sidewall 1122 is spaced from the first sidewall 1112 in one of two ways: a portion of the second sidewall 1122 contacts the first sidewall 1112 (e.g., an interference fit to connect the base 111 and the cover 112), or a portion of the second sidewall 1122 is spaced from the first sidewall 1112 to form an assembly gap, within which the seal 130 can be disposed.
  • any part of the second sidewall 1122 does not contact the first sidewall 1112, i.e., the two are completely non-contacting, and a continuous annular gap is formed between the second sidewall 1122 and the first sidewall 1112.
  • the base 111 and the cover 112 are not connected through the ends of the first side wall 1112 and the second side wall 1122, nor are they connected through the end of the first side wall 1112 and the top wall 1121.
  • the second side wall 1122 of the cover 112 is set in the receiving groove 111a of the base 111, that is, the base 111 surrounds the cover 112 through the first side wall 1112, and at least a part of the cover 112 is located in the receiving groove 111a of the base 111.
  • molten glass can be directly poured from above the base 111 and the cover 112 into the gap between the first side wall 1112 and the second side wall 1122, allowing the molten glass to flow by itself and fill the gap between the first side wall 1112 and the second side wall 1122. No fixture is required, making the operation more convenient. Furthermore, a larger gap can be left between the first sidewall 1112 of the base 111 and the second sidewall 1122 of the cover 112, which can be filled with more molten glass.
  • the molten glass filled between the first sidewall 1112 and the second sidewall 1122 is not easy to flow away under the constraint of the two (when the base 111 and the cover 112 are butted or overlapped, the molten glass is easy to flow away at the end of the first sidewall 1112). It is easier to form a stable and regular seal 130, and easier to achieve a good seal on the housing 110.
  • the sealing element 130 is disposed in the gap between the first side wall 1112 and the second side wall 1122, which is equivalent to the sealing element 130 being embedded between the base 111 and the cover 112.
  • the connection between the base 111 and the cover 112 can be strengthened, preventing the connection between the base 111 and the cover 112 from loosening due to vibration of the suction device 100, thus affecting the airtightness of the housing 110 and avoiding the failure of the suction material 120.
  • the bottom wall 1111 can be designed as a plane, a curved surface, or a cone.
  • the top wall 1121 can be designed as a plane, a curved surface, or a cone.
  • the sealing element 130 is arranged around the outer peripheral surface of the second sidewall 1122, making the sealing element 130 annular. Then, the various positions between the first sidewall 1112 and the second sidewall 1122 are filled by the sealing element 130. When the sealing element 130 is crushed by compression, multiple gaps can be formed between the first sidewall 1112 and the second sidewall 1122, so that gas and moisture in the core material 210 can enter the shell 110 through the multiple gaps and be absorbed by the gas-absorbing material 120, further improving the vacuum degree of the vacuum insulation panel 200.
  • first sidewall 1112 and the second sidewall 1122 can be completely non-contacting, so that a whole annular gap is formed between the first sidewall 1112 and the second sidewall 1122, thereby allowing the seal 130 to be disposed around the outer peripheral surface of the second sidewall 1122.
  • the distance between the second sidewall 1122 and the first sidewall 1112 increases from the end of the second sidewall 1122 that is closer to the bottom wall 1111 to the end that is farther away from the bottom wall 1111.
  • the second sidewall 1122 can be inclined relative to the first sidewall 1112, so that when the glass liquid is filled between the first sidewall 1112 and the second sidewall 1122, the glass liquid has better fluidity, so that the glass liquid flows more evenly and quickly and fills the gap between the first sidewall 1112 and the second sidewall 1122, preventing the glass liquid from producing pores and cracks after solidification, which would affect the airtightness of the seal 130.
  • the suction device 100 Since the suction device 100 is generally located inside the core material 210 of the vacuum insulation panel 200, it is used to fully absorb the gas and moisture inside the core material 210. In order to generate a greater squeezing force on the shell 110 during the rolling operation of the vacuum insulation panel 200, so as to ensure that the seal 130 can break, as shown in Figure 2, the suction device 100 also includes a protrusion 113, which is connected to the side of the cover 112 away from the bottom wall 1111.
  • the protrusion 113 is closer to the outer surface of the vacuum insulation board 200 than the cover 112.
  • the deformation of the protrusion 113 under extrusion can cause the cover 112 to deform synchronously to a certain extent, which can generate a greater extrusion force on the seal 130. This avoids the air suction device 100 being too far away from the outer surface of the vacuum insulation board 200, resulting in a weaker extrusion force on the shell 110 and the seal 130 failing to break.
  • the number of protrusions 113 can be one, two, three or more.
  • the specific number of protrusions 113 can be determined according to the size of the housing 110. This embodiment does not limit this.
  • the protrusion 113 can extend in a columnar shape away from the surface of the cover 112.
  • the outline shape of the protrusion 113 can be various, such as square, round, elliptical, etc. This embodiment does not limit this.
  • the protrusion 113 can be designed with a corresponding height according to the specific placement position of the suction device 100.
  • Figure 5 is a cross-sectional view of the vacuum insulation panel according to another embodiment of this application.
  • the protrusion 113 can be designed to have a higher height, so that the protrusion 113 extends close to the membrane structure 220 of the vacuum insulation panel 200.
  • the protrusion 113 When the vacuum insulation panel 200 is rolled, the protrusion 113 is closer to the rolling mechanism such as the rolling roller, so that the protrusion 113 can withstand a larger extrusion force. The extrusion force is transmitted to the cover 112 through the protrusion 113, so that the cover 112 exerts a large extrusion on the seal 130, which can ensure that the seal 130 is crushed by the extrusion.
  • the cover 112 when the suction device 100 is placed at the edge of the core material 210 (closer to the membrane structure 220 along the thickness direction), the cover 112 itself is close to the rolling mechanism, and the cover 112 itself can be subjected to a large squeezing effect. At this time, the protrusion 113 can be designed to be relatively low in height.
  • the end face of the protrusion 113 away from the cover 112 is flush with the inner surface of the membrane structure 220.
  • 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.
  • the protrusion 113 is subjected to the extrusion force of the roll forming mechanism almost directly, which can generate a strong extrusion force on the seal 130, making the seal 130 more prone to breakage under the extrusion force.
  • the aforementioned mounting groove 210a is first formed on the core material 210.
  • a membrane structure 220 is laid on the outer periphery of the core material 210.
  • the core material 210 is evacuated.
  • the core material 210 will shrink, and the corresponding membrane structure 220 will also shrink and fit against the end face of the protrusion 113, thereby achieving the flushing of the end face of the protrusion 113 with the inner surface of the membrane structure 220.
  • FIG. 2 and 3 is a top view of the suction device according to an embodiment of this application.
  • the maximum width of the protrusion 113 along the first direction is L
  • the maximum width of the cover 112 along the first direction is L1, satisfying: L/L1 ⁇ 0.5.
  • the first direction is parallel to the extension direction of the vacuum insulation plate 200, which is the horizontal direction in Figure 3.
  • the maximum width of the protrusion 113 along the first direction cannot exceed half the maximum width of the cover 112 along the first direction.
  • the diameter of the protrusion 113 is less than or equal to the radius of the cover 112.
  • the protrusion 113 when it is pressed down by the compressive force, the protrusion 113 applies the compressive force to the cover 112, causing the outer edge of the cover 112, i.e., the second sidewall 1122, to deform and expand outwards. This compresses the seal 130 and causes it to break, creating a gap between the base 111 and the cover 112.
  • the width of the protrusion 113 is too large, the compressive force on the protrusion 113 will cause the entire cover 112 to press down.
  • the outer edge of the cover 112 will not easily deform and expand outwards, but will instead move downwards and contact the bottom wall 1111 of the base 111, bending and deforming inwards.
  • the width of the protrusion 113 is constrained by the above-mentioned settings. By making L/L1 ⁇ 0.5, the width of the protrusion 113 will not be too large, so as to ensure that the gas outside the shell 110 can enter the shell 110 and come into contact with the gas-absorbing material 120, so that the gas-absorbing material 120 can absorb the gas and moisture inside the vacuum insulation plate 200, thereby improving the vacuum degree of the vacuum insulation plate 200.
  • the protrusion 113 is located in the middle of the cover 112.
  • the distance from each part of the outer peripheral wall of the protrusion 113 to the second side wall 1122 of the cover 112 is the same or not much different. This allows the extrusion to evenly transmit the compressive force to the second side wall 1122, so that the compressive strength of each part of the seal 130 is approximately the same. This avoids the seal 130 being subjected to excessively strong compressive force in one part and weak compressive force in other parts. It can ensure that the seal 130 can be subjected to sufficient compressive force to break, so that a large number of gaps can be formed between the first side wall 1112 and the second side wall 1122. This allows gas and moisture in all directions inside the core material 210 to enter the shell 110 through the nearest gaps, further improving the vacuum degree inside the vacuum insulation board 200 and effectively improving the heat insulation performance of the vacuum insulation board 200.
  • the protrusion 113 is designed to have a circular outline, and the cover 112 is also designed to have a circular outline.
  • the protrusion 113 is located at the center of the cover 112, and the radial distance from the outer peripheral wall of the protrusion 113 to the first side wall 1112 is the same.
  • the protrusion 113 and the cover 112 are integrally formed. Specifically, the protrusion 113 and the cover 112 are integrally stamped using a mold. By making the protrusion 113 and the cover 112 integrally formed, they form a single structure. On the one hand, there is sufficient connection strength between the protrusion 113 and the cover 112 to prevent the protrusion 113 from deforming under pressure and becoming loose from the cover 112. On the other hand, the pressure exerted on the protrusion 113 can be better transmitted to the cover 112, allowing the cover 112 to deform synchronously with the protrusion 113 under pressure, while also ensuring that the seal 130 is more prone to breakage under pressure.
  • This application also provides a refrigeration device that uses a vacuum insulation panel 200 based on any of the above embodiments to achieve thermal insulation.
  • the refrigeration device can be an electrical appliance such as a refrigerator or freezer.
  • the suction device 100 has a sealing element 130 at the connection between the base 111 and the cover 112. Thanks to the characteristic of the sealing element 130 to break under compression, the vacuum insulation panel 200 can be compressed to break the sealing element 130, creating a gap at the connection between the base 111 and the cover 112. This releases the sealing effect of the shell 110, allowing gas and moisture inside the vacuum insulation panel 200 to enter the shell 110 through the gap and react with the suction material 120. This allows the suction device 100 to absorb the gas and moisture inside the vacuum insulation panel 200, increasing the vacuum level inside the vacuum insulation panel 200, enhancing the heat insulation performance of the vacuum insulation panel 200, and thus improving the refrigeration effect of the refrigeration equipment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermal Insulation (AREA)
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Abstract

提供了一种吸气装置、真空绝热板及制冷设备。吸气装置(100)包括壳体(110)、设置于壳体内的吸气材料(120)以及密封件(130),其中壳体包括底座(111)和盖设于底座的盖体(112),密封件设置于底座和盖体的连接处。吸气装置设置在真空绝热板(200)内,在对真空绝热板整体进行挤压时,密封件会在挤压作用下碎裂,从而在底座和盖体的连接处形成缝隙,使真空绝热板内的气体和水分通过缝隙进入壳体内与吸气材料接触并被吸气材料吸收,从而提高真空绝热板内的真空度,使真空绝热板保持良好的隔热性能。

Description

吸气装置、真空绝热板及制冷设备
相关申请的交叉引用
本申请要求于2024年06月14日提交的申请号为202421364822.3、名称为“吸气装置、真空绝热板及制冷设备”的中国专利申请的优先权,以上专利申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电器设备技术领域,特别涉及一种吸气装置、真空绝热板及制冷设备。
背景技术
真空绝热板是近年来快速发展的一种新型绝热板材,其利用内部的高真空度来减小空气的热对流,使其内部的传热量降至最低,被广泛应用于冰箱、冰柜等冷冻设备。为保证绝热板内的真空度,提升绝热能力,通常在绝热板的内部设置吸气剂,使吸气剂在绝热板内破壳即可提高绝热板内的真空度。吸气剂通常采用管壳式结构,其内部储存有用于降低气压的化学成分,并在壳体的表面设置一个螺钉,在按压螺钉使壳体破裂后,吸气剂的内部成分则可与绝热板内部的空气、水分等进行反应,实现提高绝热板内的真空度。然而,在按压壳体表面的螺钉的过程中,螺钉会刺破绝热板表面的铝塑膜,造成真空绝热板漏气,影响隔热性能。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此,本申请提出一种吸气装置,通过辊压即可使密封件破裂实现解除壳体的密封作用,取消了螺钉,有效降低刺破铝塑膜的风险。
本申请还提出一种具有上述吸气装置的真空绝热板。
本申请还提出一种具有上述真空绝热板的制冷设备。
根据本申请第一方面实施例的吸气装置,应用于真空绝热板,所述吸气装置包括:
壳体,包括底座和盖设于所述底座的盖体;
吸气材料,设置于所述壳体内;及
密封件,设置于所述底座和所述盖体的连接处,所述密封件能够在挤压作用下碎裂,以在所述底座和所述盖体的连接处形成缝隙,以使所述壳体外的气体能够进入所述壳体内与所述吸气材料接触。
根据本申请的实施例的吸气装置,至少具有如下有益效果:吸气装置的壳体包括底座和盖体,通过在底座和盖体的连接处设置有密封件,得益于密封件在挤压作用下碎裂的特性,对壳体挤压即可使密封件碎裂,使得底座和盖体的连接处产生缝隙,从而实现解除壳体的密封作用,进而使壳体外部的气体和水分能够通过缝隙进入壳体内与吸气材料接触反应,而被吸气材料吸收。当吸气装置应用于真空绝热板时,对真空绝热板进行辊压即可解除吸气装置的密封作用,使吸气装置可以吸收真空绝热板内的气体和水分,可以提高真空绝热板内的真空度,增强真空绝热板的隔热性能。因此,可取消螺钉,且采用上述结构的壳体本身不会刺破铝塑膜,可以有效降低刺破铝塑膜的风险,提高真空绝热板的可靠性。
根据本申请的一些实施例,所述底座包括底壁和第一侧壁,所述第一侧壁与所述底壁连接且环绕所述底壁的侧边缘设置,所述底壁和所述第一侧壁围合形成有容纳槽;
所述盖体包括顶壁和第二侧壁,所述第二侧壁与所述顶壁连接且环绕所述顶壁的侧边缘设置,所述第二侧壁位于所述容纳槽内,至少部分所述第二侧壁与所述第一侧壁间隔设置;
所述密封件设置于所述第一侧壁和所述第二侧壁之间。
根据本申请的一些实施例,所述密封件环绕所述第二侧壁的外周面设置。
根据本申请的一些实施例,所述第二侧壁与所述第一侧壁之间的距离,自所述第二侧壁靠近所述底壁的一端至远离所述底壁的一端递增。
根据本申请的一些实施例,所述密封件为玻璃件。
根据本申请的一些实施例,所述底座包括底壁,所述壳体还包括凸起部,所述凸起部连接于所述盖体背离所述底壁的一侧。
根据本申请的一些实施例,所述凸起部沿第一方向的最大宽度为L,所述盖体沿所述第一方向的最大宽度为L1,所述第一方向平行于所述真空绝热板的延展方向,满足:L/L1≤0.5。
根据本申请的一些实施例,所述凸起部设于所述盖体的中部;所述凸起部与所述盖体一体成型。
根据本申请第二方面实施例的真空绝热板,包括:
芯材,设置有安装槽;
膜结构,设置于所述芯材的外周;及
吸气装置,设于所述安装槽,所述吸气装置为以上任意实施例所述的吸气装置。
根据本申请的实施例的真空绝热板,至少具有如下有益效果:采用第一方面实施例的吸气装置,吸气装置的壳体包括底座和盖体,通过在底座和盖体的连接处设置有密封件,得益于密封件在挤压作用下碎裂的特性,对真空绝热板进行挤压即可使密封件碎裂,使得底座和盖体的连接处产生缝隙,从而实现解除壳体的密封作用,进而使真空绝热板内的气体和水分能够通过缝隙进入壳体内与吸气材料接触反应,使吸气装置可以吸收真空绝热板内的气体和水分,可以提高真空绝热板内的真空度,增强真空绝热板的隔热性能。
根据本申请的一些实施例,所述吸气装置包括凸起部,所述凸起部与所述盖体连接且朝远离所述盖体的方向延伸,所述凸起部远离所述盖体的端面与所述膜结构的内表面齐平。
根据本申请第三方面实施例的制冷设备,包括以上实施例的真空绝热板。
根据本申请的实施例的制冷设备,至少具有如下有益效果:采用第二方面实施例的真空绝热板,真空绝热板通过采用吸气装置,吸气装置通过在底座和盖体的连接处设置有密封件,得益于密封件在挤压作用下碎裂的特性,对真空绝热板进行挤压即可使密封件碎裂,使得底座和盖体的连接处产生缝隙,从而实现解除壳体的密封作用,进而使真空绝热板内的气体和水分能够通过缝隙进入壳体内与吸气材料接触反应,使吸气装置可以吸收真空绝热板内的气体和水分,可以提高真空绝热板内的真空度,增强真空绝热板的隔热性能,从而提高制冷设备的制冷效果。
本申请的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本申请的实践了解到。
附图说明
下面结合附图和实施例对本申请做进一步的说明,其中:
图1为本申请实施例的吸气装置的结构示意图;
图2为本申请实施例的吸气装置的剖视图;
图3为本申请一种实施例的真空绝热板的剖视图;
图4中图2中A处的局部放大图;
图5为本申请另一种实施例的真空绝热板的剖视图;
图6为本申请实施例的吸气装置的俯视图。
附图标号:
吸气装置100;壳体110;底座111;容纳槽111a;底壁1111;第一侧壁1112;
盖体112;顶壁1121;第二侧壁1122;凸起部113;吸气材料120;密封件130;
真空绝热板200;芯材210;安装槽210a;膜结构220。
具体实施方式
下面详细描述本申请的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,仅用于解释本申请,而不能理解为对本申请的限制。
在本申请的描述中,需要理解的是,涉及到方位描述,例如上、下等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。
在本申请的描述中,多个指的是两个及两个以上。如果有描述到第一、第二只是用于区分技术特征为目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本申请的描述中,除非另有明确的限定,设置、安装、连接等词语应做广义理解,所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本申请中的具体含义。
真空绝热板作为一种新型的绝热板材,其利用内部的高真空度来减小空气的热对流,使其内部的传热量降至最低,实现隔热、甚至绝热的效果,并广泛应用于冰箱、冰柜等制冷设备中。
为保证真空绝热板内的真空度满足要求,提升绝热能力,通常而言,在真空绝热板内设置吸气剂,通过吸气剂进一步吸收真空绝热板内的水分和空气,达到降低气压的目的,进而提高真空绝热板的真空度。其中,吸气剂采用管壳式结构,其内部的主要成分为二氧化硅粉末、氧化铝粉末、石墨粉末等中的一种或多种,并在吸气剂的表面通过胶带固定一颗螺钉。
真空绝热板包括芯材和包覆于芯材外周的铝塑膜,目前真空绝热板的生产工艺为:先在芯材开槽,将上述的吸气剂放入槽中,再将芯材和吸气剂整体放入铝塑膜内,最后对铝塑膜抽真空并封口。封口后,按压吸气剂表面的螺钉,以刺破吸气剂的外壳,使得吸气剂内部的成分能够接触真空绝热板内部的空气和水分,以吸收真空绝热板内的水分和空气,使真空绝热板内的真空度得以进一步提高,从而使真空绝热板发挥良好的隔热性能。
然而,在按压螺钉的过程中,螺钉完全贴合铝塑膜,在螺钉的压力下,铝塑膜会螺钉刺破,造成真空绝热板漏气,影响真空绝热板的隔热性能。
对此,为解决上述问题,本申请提供一种吸气装置和应用该吸气装置的真空绝热板。
请参考图1和图2,图1为本申请的实施例的吸气装置的结构示意图,图2为本申请的实施例的吸气装置的剖视图。吸气装置100包括壳体110和设置于壳体110内的吸气材料120。吸气材料120即能够用于吸收空气和水分的粉末材料,例如吸气材料120可以与空气或水分等发生化学反应,存储有吸气材料120的吸气装置100可以应用在制冷设备的真空绝热板,使吸气装置100可以吸收真空绝热板内的空气和水分,提高绝热性。其中,吸气材料120可以为二氧化硅粉末、氧化铝粉末、石墨粉末等中的一种或多种。
壳体110用于作为承载和容纳吸气材料120的载体,为方便将吸气材料120设置于壳体110内,参考图2所示,壳体110包括底座111和盖设于底座111的盖体112。可以理解的是,壳体110需设计为具有较高的气密性,以对吸气材料120密封储存,防止吸气材料120失效。壳体110可以是玻璃壳或金属壳等,具体而言,本实施例中的壳体110采用合金制作,如铝合金、铜合金或铁合金等,壳体110采用合金制作,便于折弯、冲压、可塑性变形等,可加工性好。
可以理解的,吸气装置100应用于真空绝热板,为了使真空绝热板内的气体能够进入吸气装置100的壳体110内与吸气材料120发生反应,壳体110可以设计在外力作用下容易变形破裂。请继续参考图2,吸气装置100还包括密封件130,密封件130设置于底座111和盖体112的连接处,密封件130能够在挤压作用下碎裂,以在底座111和盖体112的连接处形成缝隙,从而使壳体110外的气体能够进入壳体110内与吸气材料120接触。
密封件130采用气密性好,且脆性大的材料制成,密封件130可以是玻璃件或者脆性大的塑料件等,密封件130具备在挤压状态下容易碎裂的性能,且未碎裂时具备良好的密封性能。例如,密封件130为玻璃件,具体而言,将玻璃加热至熔融状态,再将熔融状态的玻璃液填充至底座111与盖体112的连接处,待玻璃液冷却凝固后形成密封件130的最终形状,即可实现封闭壳体110的内部空间,壳体110的内部空间即为底座111、盖体112及密封件130围合形成的存储空间,储存空间用于存放吸气材料120,从而实现对吸气材料120密封储存。又例如,密封件130为塑料件,将塑料加热至熔融状态后填充至底座111与盖体112的连接处,待塑料液冷却后即可实现封闭壳体110的内部空间。
请参考图3,图3为本申请一种实施例的真空绝热板的剖视图。真空绝热板200包括芯材210、膜结构220以及吸气装置100。芯材210可以是颗粒芯材210、泡沫芯材210、纤维芯材210等。其中,芯材210可以设置有安装槽210a,吸气装置100设置于安装槽210a内。膜结构220设置于芯材210的外周,膜结构220为高反射阻隔膜,对辐射对流具有抑制作用,同时起到隔水隔气维持真空度的作用,例如膜结构220可以是铝塑膜,具有良好的密封性,保证真空绝热板200的隔热性。
具体而言,将上述吸气装置100设置于真空绝热板200的过程中,首先将吸气装置100放入芯材210的安装槽210a内,再将芯材210和吸气装置100整体放入膜结构220(或者说在芯材210的外周面铺设膜结构220),此时膜结构220留有开口以对芯材210内部进行抽真空,对芯材210内部抽真空后对膜结构220进行封口。为缩小真空绝热板200的体积以满足轻薄化设计,需要将真空绝热板200整体进行挤压,例如采用辊压方式,使真空绝热板200的整体厚度减小。在对真空绝热板200的辊压过程中,会对芯材210内的吸气装置100产生挤压力,使壳体110发生一定程度变形,同时可以使密封件130受挤压力作用而碎裂,使得底座111和盖体112的连接处产生缝隙,实现了解除壳体110的密封作用,从而壳体110外部的气体和水分(也即真空绝热板200内部的气体和水分)能够通过缝隙进入壳体110内与吸气材料120接触,进而通过吸气材料120吸收真空绝热板200内的气体和水分,可以提高真空绝热板200内的真空度,使真空绝热板200保持良好的隔热性能。因此,可取消螺钉,且采用上述结构的壳体110本身不会刺破膜结构220,可以有效降低刺破膜结构220的风险,提高真空绝热板200的可靠性。
在一实施例中,为使密封件130在外力挤压作用下更容易碎裂,密封件130为玻璃件。密封件130由填充在底座111和盖体112连接处的玻璃液凝固形成。
为方便在底座111和盖体112的连接处形成密封件130,请参考图4,图4为图2中A处的局部放大图。底座111包括底壁1111和第一侧壁1112,第一侧壁1112与底壁1111连接且环绕底壁1111的侧边缘设置,底壁1111和第一侧壁1112围合形成有容纳槽111a。盖体112包括顶壁1121和第二侧壁1122,第二侧壁1122与顶壁1121连接且环绕顶壁1121的侧边缘设置,第二侧壁1122位于容纳槽111a内,至少部分第二侧壁1122与第一侧壁1112间隔设置,密封件130设置于第一侧壁1112和第二侧壁1122之间。
可以理解的,至少部分第二侧壁1122与第一侧壁1112间隔具有以下两种情况:第二侧壁1122的一部分与第一侧壁1112接触(例如可以为过盈配合以实现将底座111和盖体112连接),第二侧壁1122的一部分与第一侧壁1112间隔形成有装配缝隙,密封件130可以设置于该装配缝隙内。或者是,第二侧壁1122的任意部位都与第一侧壁1112不接触,即两者完全不接触,第二侧壁1122与第一侧壁1112之间形成有一整条环状的缝隙。
通过上述设置,底座111与盖体112不是通过第一侧壁1112的端部和第二侧壁1122的端部对接,也不是通过第一侧壁1112的端部和顶壁1121搭接,本实施例通过将盖体112的第二侧壁1122设置于底座111的容纳槽111a内,也即底座111通过第一侧壁1112包围盖体112,盖体112的至少部分位于底座111的容纳槽111a内,从而可以直接将熔融的玻璃液从底座111和盖体112上方倒入第一侧壁1112和第二侧壁1122的缝隙中,使玻璃液自行流动并填满第一侧壁1112和第二侧壁1122之间的缝隙,无需采用治具,更方便操作。而且,底座111的第一侧壁1112和盖体112的第二侧壁1122之间可以留出较大的缝隙,可以填充较多的玻璃液,且填充在第一侧壁1112和第二侧壁1122之间的玻璃液在两者的约束下不容易流走(底座111和盖体112采用对接或搭接方式时,玻璃液倒在第一侧壁1112端部很容易流走),更容易形成稳固、规则的密封件130,更容易对壳体110实现良好的密封。
另外,密封件130设置在第一侧壁1112和第二侧壁1122的缝隙中,相当于密封件130嵌入底座111和盖体112之间,通过玻璃液凝固后的连接作用,可以增强底座111与盖体112的连接牢固性,防止吸气装置100受振动导致底座111和盖体112的连接松脱而影响壳体110的气密性,避免吸气材料120失效。
其中,底壁1111可以设计为平面,也可以为曲面,还可以为锥面。同样的,顶壁1121可以设计为平面、也可以为曲面,还可以为锥面。
在一实施例中,密封件130环绕第二侧壁1122的外周面设置,使得密封件130呈环状,那么,第一侧壁1112和第二侧壁1122之间的各个位置均被密封件130填充,当密封件130受挤压作用碎裂时,可以在第一侧壁1112和第二侧壁1122之间形成多处缝隙,使得芯材210内各处的气体和水分可以通过多处缝隙进入壳体110内被吸气材料120吸收,进一步提高真空绝热板200的真空度。
具体而言,第一侧壁1112和第二侧壁1122可以完全不接触,使得第一侧壁1112和第二侧壁1122之间形成有一整条环状的缝隙,从而使密封件130能够环绕第二侧壁1122的外周面设置。
请继续参考图4,第二侧壁1122与第一侧壁1112之间的距离,自第二侧壁1122靠近底壁1111的一端至远离底壁1111的一端递增。
那么,第二侧壁1122靠近底壁1111一端与第一侧壁1112之间的距离小,第二侧壁1122远离顶壁1121一端与第一侧壁1112之间的距离大,也就是说,第二侧壁1122可以相对第一侧壁1112倾斜设置,使得在第一侧壁1112和第二侧壁1122之间填充玻璃液时,玻璃液具有更好的流动性,使玻璃液更均匀、快速流动并填满第一侧壁1112和第二侧壁1122之间的缝隙,防止玻璃液凝固后产生气孔、裂纹缺陷而影响密封件130的气密性。
由于吸气装置100一般设置在真空绝热板200的芯材210内部,以充分吸收芯材210内的气体和水分。为了在真空绝热板200进行辊压作业时能够对壳体110产生较大的挤压作用,以保证密封件130能够碎裂,如图2所示,吸气装置100还包括凸起部113,凸起部113连接于盖体112背离底壁1111的一侧。
那么,通过在盖体112背离底壁1111的表面设置有凸起部113,凸起部113相比于盖体112更靠近真空绝热板200的外表面,从而在对真空绝热板200进行辊压作业时,施加在真空绝热板200的挤压力可以通过凸起部113传递至盖体112,同时凸起部113受到挤压变形可以带动盖体112同步发生一定程度的变形,可以对密封件130产生较大的挤压作用,避免吸气装置100距离真空绝热板200外表面距离较远,造成壳体110受到的挤压作用较弱而导致密封件130无法碎裂。
其中,凸起部113的数量可以为一个,也可以为两个、三个或者更多,凸起部113的具体数量可以根据壳体110的尺寸大小决定,本实施例对此不做限制。
凸起部113可以朝远离盖体112表面的方向延伸呈柱状,凸起部113的轮廓形状可以有多种,例如可以是方形、圆形、椭圆形等,本实施例对此不做限制。
具体而言,将吸气装置100装配至真空绝热板200时,凸起部113可以根据吸气装置100的具体放置位置而设计相对应的高度,例如,请参考图5,图为本申请另一种实施例的真空绝热板的剖视图,当吸气装置100放置在芯材210中部位置(沿厚度方向距离膜结构220较远时),凸起部113可以设计为具有较高的高度,使凸起部113延伸至靠近真空绝热板200的膜结构220,以在对真空绝热板200进行辊压时,凸起部113更靠近辊压机构诸如辊压轮,使得凸起部113可以承受到较大的挤压力,通过凸起部113将该挤压力传递至盖体112,使盖体112对密封件130产生较大的挤压,可以保证密封件130受挤压作用而碎裂。如图3所示,当吸气装置100放置在芯材210的边缘位置(沿厚度方向距离膜结构220较近),此时盖体112本身距离辊压机构较近,盖体112本身能够受到较大的挤压作用,此时凸起部113可以设计为相对偏矮的高度。
在一实施例中,如图5所示,凸起部113远离盖体112的端面与膜结构220的内表面齐平。可以理解的是,膜结构220的内表面指的是膜结构220与芯材210外周面接触的一面。那么,在对真空绝热板200进行辊压作业时,由于凸起部113端面与膜结构220的内表面齐平,辊压机构与凸起部113之间仅间隔一个膜结构220的厚度,使凸起部113近乎直接受到辊压机构的挤压力,可以对密封件130产生较强的挤压作用,使密封件130在挤压作用下更容易碎裂。
具体而言,真空绝热板200的制作过程中,首先在芯材210上形成上述安装槽210a,将吸气装置100放置于安装槽210a内后,在芯材210的外周铺设膜结构220,此时凸起部113与膜结构220之间容易存在间隙,然后对芯材210抽真空,抽真空过程中由于芯材210内部气体被抽走,芯材210会收缩,相应的膜结构220也会跟着收缩而与凸起部113端面贴合,从而实现将凸起部113端面与膜结构220的内表面齐平。
请结合图2、图3并参考图6,图6为本申请的实施例的吸气装置的俯视图。凸起部113沿第一方向的最大宽度为L,盖体112沿第一方向的最大宽度为L1,满足:L/L1≤0.5。其中,第一方向平行于真空绝热板200的延展方向,也即图3中水平方向。
也就是说,凸起部113沿第一方向的最大宽度不能超过盖体112沿第一方向的最大宽度的一半。以凸起部113和盖体112的轮廓形状均设置为圆形为例,则凸起部113的直径小于或等于盖体112的半径。
可以理解的,凸起部113处于较小的宽度时,凸起部113受到挤压力下压时,凸起部113将挤压力作用于盖体112,使盖体112的外侧边缘也即第二侧壁1122会朝外侧变形撑开,对密封件130造成挤压并使密封件130碎裂,使底座111和盖体112之间形成缝隙。当凸起部113的宽度过大,凸起部113受到挤压力会使整个盖体112下压,盖体112的外侧边缘反而不容易朝外侧变形撑开,而是向下运动与底座111的底壁1111接触并朝内侧弯折变形,容易造成盖体112与底壁1111抵接将缝隙堵死,导致壳体110外的气体无法进入壳体110内与吸气材料120接触。故本实施例通过上述设置,对凸起部113的宽度进行了约束,通过使L/L1≤0.5,使凸起部113宽度不会太大,以保证壳体110外的气体能够进入壳体110内与吸气材料120接触,使吸气材料120能够吸收真空绝热板200内的气体和水分,以提高真空绝热板200的真空度。
当凸起部113的数量设置为一个时,为了保证密封件130各个部位均能够受挤压作用而碎裂,以使芯材210各个方向的气体和水分均能进入壳体110内,参考图2所示,凸起部113设置于盖体112的中部。
容易理解的,通过将凸起部113设置在盖体112的中部,则凸起部113外周壁的各个部位至盖体112第二侧壁1122的距离相同或者相差不大,以通过凸起部113将挤压力均匀的传递给第二侧壁1122,从而使得密封件130各个部位受到的挤压强度大致相同,避免密封件130某一局部受挤压作用过强,而其他部分受挤压作用较弱,可以使密封件130各处均都能受到足够强度的挤压作用而碎裂,使第一侧壁1112和第二侧壁1122之间可以形成大量缝隙,进而使芯材210内各个方向的气体和水分都能通过最近的缝隙进入壳体110内,进一步提高真空绝热板200内的真空度,有效提高真空绝热板200的隔热性能。
在一实施例中,如图6所示,凸起部113的轮廓形状设计呈圆形,盖体112的轮廓形状也设计呈圆形,凸起部113设置在盖体112的正中心,凸起部113的外周壁各处至第一侧壁1112的径向距离相同。
为方便吸气装置100的加工生产,凸起部113与盖体112一体成型。具体而言,凸起部113与盖体112通过模具一体冲压成型。通过设置凸起部113与盖体112一体成型,则凸起部113与盖体112为一体结构,一方面,凸起部113与盖体112之间具有足够的连接强度,防止凸起部113受挤压变形而与盖体112松脱。一方面,凸起部113受到的挤压作用可以更好的传递给盖体112,使盖体112可以随凸起部113受到挤压作用时同步发生变形,同时保证密封件130受挤压作用更容易碎裂。
本申请还提供一种制冷设备,制冷设备采用基于上述任意实施例构思的真空绝热板200,以实现保温隔热。其中,制冷设备可以为冰箱、冰柜等电器设备。
制冷设备由于采用具有上述吸气装置100的真空绝热板200,吸气装置100通过在底座111和盖体112的连接处设置有密封件130,得益于密封件130在挤压作用下碎裂的特性,对真空绝热板200进行挤压即可使密封件130碎裂,使得底座111和盖体112的连接处产生缝隙,从而实现解除壳体110的密封作用,进而使真空绝热板200内的气体和水分能够通过缝隙进入壳体110内与吸气材料120接触反应,使吸气装置100可以吸收真空绝热板200内的气体和水分,可以提高真空绝热板200内的真空度,增强真空绝热板200的隔热性能,从而提高制冷设备的制冷效果。
上面结合附图对本申请的实施例作了详细说明,但是本申请不限于上述实施例,在所属技术领域普通技术人员所具备的知识范围内,还可以在不脱离本申请宗旨的前提下作出各种变化。

Claims (11)

  1. 吸气装置,应用于真空绝热板,并包括:
    壳体,包括底座和盖设于所述底座的盖体;
    吸气材料,设置于所述壳体内;及
    密封件,设置于所述底座和所述盖体的连接处,所述密封件能够在挤压作用下碎裂,以在所述底座和所述盖体的连接处形成缝隙,以使所述壳体外的气体能够进入所述壳体内与所述吸气材料接触。
  2. 根据权利要求1所述的吸气装置,其中,所述底座包括底壁和第一侧壁,所述第一侧壁与所述底壁连接且环绕所述底壁的侧边缘设置,所述底壁和所述第一侧壁围合形成有容纳槽;
    所述盖体包括顶壁和第二侧壁,所述第二侧壁与所述顶壁连接且环绕所述顶壁的侧边缘设置,所述第二侧壁位于所述容纳槽内,至少部分所述第二侧壁与所述第一侧壁间隔设置;以及
    所述密封件设置于所述第一侧壁和所述第二侧壁之间。
  3. 根据权利要求2所述的吸气装置,其中,所述密封件环绕所述第二侧壁的外周面设置。
  4. 根据权利要求2或3所述的吸气装置,其中,所述第二侧壁与所述第一侧壁之间的距离,自所述第二侧壁靠近所述底壁的一端至远离所述底壁的一端递增。
  5. 根据权利要求1至4任一项所述的吸气装置,其中,所述密封件为玻璃件。
  6. 根据权利要求1至5任一项所述的吸气装置,其中,所述底座包括底壁,所述壳体还包括凸起部,所述凸起部连接于所述盖体背离所述底壁的一侧。
  7. 根据权利要求6所述的吸气装置,其中,所述凸起部沿第一方向的最大宽度为L,所述盖体沿所述第一方向的最大宽度为L1,所述第一方向平行于所述真空绝热板的延展方向,满足:L/L1≤0.5。
  8. 根据权利要求6或7所述的吸气装置,其中,所述凸起部设于所述盖体的中部;所述凸起部与所述盖体一体成型。
  9. 真空绝热板,包括:
    芯材,设置有安装槽;
    膜结构,设置于所述芯材的外周;及
    吸气装置,设于所述安装槽,所述吸气装置为如权利要求1至8任一项所述的吸气装置。
  10. 根据权利要求9所述的真空绝热板,其中,所述吸气装置包括凸起部,所述凸起部与所述盖体连接且朝远离所述盖体的方向延伸,所述凸起部远离所述盖体的端面与所述膜结构的内表面齐平。
  11. 制冷设备,包括权利要求9或10所述的真空绝热板。
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CN222543349U (zh) * 2024-06-14 2025-02-28 合肥华凌股份有限公司 吸气装置、真空绝热板及制冷设备

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