WO2023098884A1 - 垫圈及其制造方法 - Google Patents

垫圈及其制造方法 Download PDF

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Publication number
WO2023098884A1
WO2023098884A1 PCT/CN2022/136261 CN2022136261W WO2023098884A1 WO 2023098884 A1 WO2023098884 A1 WO 2023098884A1 CN 2022136261 W CN2022136261 W CN 2022136261W WO 2023098884 A1 WO2023098884 A1 WO 2023098884A1
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WIPO (PCT)
Prior art keywords
gasket
door
insulating material
bag
heat insulating
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PCT/CN2022/136261
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English (en)
French (fr)
Inventor
大汤英树
上田勉
星野仁
馆野恭也
Original Assignee
海尔智家股份有限公司
青岛海尔电冰箱有限公司
Aqua 株式会社
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Application filed by 海尔智家股份有限公司, 青岛海尔电冰箱有限公司, Aqua 株式会社 filed Critical 海尔智家股份有限公司
Publication of WO2023098884A1 publication Critical patent/WO2023098884A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers

Definitions

  • the present invention relates to a gasket for sealing the doors and storage compartments of refrigerators, freezers and freezers and a manufacturing method thereof.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2016-205597 . describes that in order to further improve the heat insulation performance of the gasket, a gasket having a first pocket and a hollow second pocket is used. Holds granular insulation. It is also described that a gasket whose heat insulating material includes heat insulating beads and magnetic powder is used, that the heat insulating material is mainly composed of beads and that the ratio of magnetic powder is 1 to 30% by volume, and that a gasket is provided between the main body and the door. insulation box.
  • the above gasket has a problem that when the first bag portion is damaged, the granular heat insulating material and magnetic powder leak out, making cleaning difficult.
  • the above-mentioned gasket has a problem that if the first bag portion is not completely filled with the granular heat insulating material and magnetic powder, the heat insulating material will be unevenly distributed and heat insulation cannot be performed uniformly.
  • an object of the present invention is to provide a gasket with excellent thermal insulation properties. Furthermore, another object of the present invention is to provide a gasket for easy handling of granular heat insulating materials. Furthermore, another object of the present invention is to provide a gasket capable of uniform heat insulation.
  • the gasket of the present invention is a gasket installed on a refrigerator door to seal the space between the door and the refrigerator main body when the door is in a closed state, wherein,
  • a fin portion extending from the root portion along a space between the door and the refrigerator body
  • a resin bag in which a granular heat insulating material is sealed is inserted into the hollow portion.
  • a gasket with good thermal insulation properties can be obtained. According to the present invention, it is possible to obtain a gasket which is easy to handle the granular heat insulating material.
  • the gasket according to the present invention is characterized in that the bag is composed of a plurality of heat insulating material enclosing regions partitioned by heat-sealed portions.
  • the granular heat insulating material can be uniformly insulated without being deflected in the bag.
  • the gasket of the present invention is characterized in that the material of the resin bag includes polyethylene, polyvinyl chloride, polypropylene, polystyrene, acrylonitrile-butadiene-styrene, acrylonitrile-styrene, acrylic , polybutylene terephthalate, or polyethylene terephthalate.
  • a plurality of heat insulating material enclosing regions can be formed using a thermoplastic resin that is easily heat-sealed.
  • the gasket of the present invention is characterized in that the granular heat insulating material includes silica aerogel, carbon aerogel, polymer aerogel, or metal aerogel.
  • the aerogel having better thermal insulation than air it is possible to improve the thermal insulation compared to filling the hollow with air.
  • the manufacturing method of the gasket of the present invention is, wherein,
  • a bag having an opening is formed by thermally welding a resin sheet, the portion of the resin sheet that is thermally welded in a subsequent process is masked,
  • the opening is thermally welded.
  • masking is performed to prevent the particulate heat insulating material from adhering to the thermally welded portion due to static electricity.
  • Fig. 2 is a schematic perspective view of a main body of a refrigerator according to an embodiment of the present invention.
  • Fig. 3 is a schematic perspective view of a refrigerator door according to an embodiment of the present invention.
  • Fig. 4 is a three-dimensional exploded schematic diagram of the refrigerator door according to the embodiment of the present invention, part (a) shows the door after the gasket is removed, and part (b) shows the gasket.
  • Fig. 5 is a sectional view of the refrigerator in Fig. 1 along line A-A.
  • FIG. 6 is an enlarged cross-sectional view of the refrigerator body, door and gasket of FIG. 5 .
  • Fig. 7 is a front sectional view of the gasket according to the embodiment of the present invention.
  • Fig. 8 is a side sectional view of the gasket according to the embodiment of the present invention.
  • Fig. 9 is a diagram illustrating a method of manufacturing the gasket according to the embodiment of the present invention.
  • Fig. 1 is a schematic perspective view of a refrigerator 101 according to an embodiment of the present invention.
  • Fig. 2 is a schematic perspective view of the main body 103 of the refrigerator according to the embodiment of the present invention. Referring to FIG. 1 and FIG. 2 , the overall structure of a refrigerator 101 according to an embodiment of the present invention is described.
  • the refrigerator 101 which concerns on one Embodiment of this invention has the refrigerator main body 103 which can store food etc. inside, and the door 105.
  • the refrigerator main body 103 has an opening at its front.
  • the door 105 opens and closes the opening of the refrigerator main body 103 .
  • the refrigerator main body 103 is box-shaped, and surrounds the upper surface, the lower surface, the back surface, and the right side of the refrigerator main body 103 on which the heat insulating material is arranged except for the opening on the front side. Five faces, the side face and the side face on the left side when facing each other.
  • This inner box as a whole becomes the storage room 113 .
  • the storage compartment 113 has a plurality of shelves 115a, 115b, 115c, 115d, 115e. On each of these shelves 115a, 115b, 115c, 115d, and 115e, a plurality of food items and the like can be stored. Therefore, the space of the storage room 113 can be effectively used.
  • the flange portion 111d on the opening side forms a quadrilateral.
  • the refrigerator is not limited to a cuboid, but it is preferably a cuboid in view of the stability of installation.
  • the refrigerator of 1 door was shown, it may be a refrigerator of 2 doors, 3 doors, 4 doors, 5 doors, or 6 doors.
  • the refrigerator was shown, it may be a freezer or a refrigerator.
  • Fig. 3 is a schematic perspective view of the door 105 of the refrigerator 101 according to the embodiment of the present invention.
  • 4 is an exploded perspective view of the door 105 of the refrigerator 101 according to the embodiment of the present invention, (a) is the door 121 with the gasket 123 removed, and (b) is the gasket 123 .
  • Fig. 5 is a sectional view of the refrigerator in Fig. 1 along line A-A. 3-5, the door 121 and the gasket 123 of the refrigerator 101 are demonstrated.
  • the door 105 is fitted to the flanges 111a, 111b, 111c, and 111d on the opening side of the refrigerator main body 103, and has a substantially rectangular shape. In this embodiment, it is a rectangle, but it can also be formed into a circle, an ellipse, a square, or other shapes according to the opening of the refrigerator main body 103 .
  • the inner face of the door 105 may include a shelf with a storage function.
  • the door 105 has a certain thickness and has heat insulation.
  • the refrigerator 101 has heat retention by blocking the outside air with the gasket 123 .
  • the outer surface of the door 105 is flat.
  • the door 105 can be separated into a door profile member 121 shown in FIG. 4(a) and a gasket 123 shown in FIG. 4(b).
  • the door shape member 121 occupies most of the shape and function of the door, and is hereinafter referred to as a door without distinction.
  • Flanges 111 a , 111 b , 111 c , and 111 d on the opening side of refrigerator main body 103 are formed of painted steel sheets, and are suction portions for closely adhering to gaskets attached to door 105 .
  • the gasket 123 is arranged at a position corresponding to the suction portion. Therefore, the gasket 123 is provided over the entire circumference corresponding to the suction portions of the four sides of the door 121 .
  • a groove 125 is formed around the entire circumference of the door 121 .
  • the gasket 123 is installed on the door 121 by inserting a root portion 135 which is a part of the gasket 123 into the groove 125 .
  • the door 121 closes the opening of the refrigerator main body 103 .
  • Gasket 123 is disposed between refrigerator main body 103 and door 121 on both left and right sides of door 121 .
  • the refrigerator main body 103 and the door 121 form a storage room 113 as a closed space.
  • the gasket 123 seals the interior by cutting off the air inside the refrigerator of the refrigerator main body 103 and the air outside the door 121 . By sealing the inside, the air inside the refrigerator is separated from the outside air to be cooled and the temperature drops.
  • FIG. 6 is an enlarged cross-sectional view of the refrigerator body 103, the door 121, and the gasket 123 of FIG. 5. Referring to FIG. Referring to FIG. 6 , the gasket 123 according to the embodiment of the present invention will be described in more detail.
  • Rubber such as urethane rubber, silicone rubber, ethylene propylene rubber, and chloroprene rubber, polyethylene resin, polyvinyl chloride, and the like can be used for the gasket 123 . These materials may be selected in consideration of weather resistance, chemical resistance, and the like.
  • the washer 123 made of the above material has elastic deformability. That is, the gasket 123 is easily compressed and deformed corresponding to the adsorption portion of the refrigerator body 103 when the door 121 is closed, and is restored when the door 121 is opened and the gasket 123 is separated from the refrigerator body 103 . Thereby, the inside of storage room 113 can be sealed.
  • the gasket 123 has a root portion 135 fitted in a groove 125 formed in the door 121 .
  • a groove 125 with a circular cross-section is formed around the entire circumference of the door 121, and a root portion 135 includes a stopper with an arrowhead cross-section at the end of the body tightly fitted with the groove 125, and the root portion 135 is installed on the washer 123 In the groove 125.
  • the gasket 123 can be installed by being compressed and fitted into the door 121 and restored.
  • the root portion 135 installed in the groove 125 can prevent the communication of air from between the door 121 and the gasket 123 with the body closely fitted to the groove 125 .
  • the adhering force between the refrigerator main body 103 and the gasket 123 overcomes the connection force between the gasket 123 and the door 121 , and the gasket 123 will not fall off.
  • the gasket 123 has a fin portion 137 extending from the root portion 135 along between the door 121 and the refrigerator main body 103 .
  • the fin portion 137 is elastically deformed to be in close contact with the flat portion around the groove 125 , thereby further sealing the refrigerator main body 103 and the door 121 .
  • the washer 123 has a hollow portion 133 mounted to a root portion 135 .
  • the hollow portion 133 generally has a function of insulating the exterior and interior of the refrigerator 101 .
  • the hollow part 133 is deformed corresponding to the adsorption part of the refrigerator main body 103 by elastic deformation.
  • the gasket 123 has a flat pocket portion 131 adjoining a hollow portion 133 into which a magnet 132 is inserted.
  • the flat pocket portion 131 is in contact with the refrigerator main body 103 .
  • the refrigerator main body 103 is made of a member containing ferromagnetic materials such as iron, nickel, and cobalt, the inserted magnet 132 is in close contact with the refrigerator main body 103 .
  • the gasket 123 can attract the door 121 and the refrigerator body 103 because the root portion 135 installed in the groove 125, the fin portion 137, the hollow portion 133, and the flat pocket portion 131 inserted with the magnet 132 are integrated.
  • the gasket 123 is in close contact with the adsorption part of the refrigerator main body 103 through the flat bag-shaped part 131 in which the magnet 132 is inserted.
  • Fig. 7 is a front sectional view of the gasket 123 according to the embodiment of the present invention.
  • Fig. 8 is a side sectional view of the gasket 123 according to the embodiment of the present invention. Referring to FIG. 7 and FIG. 8 , the gasket 123 enclosing the granular heat insulating material according to the embodiment of the present invention will be described.
  • the gasket 123 is integrally formed with a root portion 135 fitted in a groove 125 , a fin portion 137 , a hollow portion 133 , and a flat pocket portion 131 in which a magnet 132 is inserted.
  • a resin bag 139 in which a granular heat insulating material is enclosed is inserted into the hollow portion 133 .
  • Granular insulation is a material that is more insulating than air, such as silica aerogels, carbon aerogels, polymer aerogels or metal aerogels.
  • the granular heat insulating material is preferably a fine particle of about 100 ⁇ m or less. This is because such particles are easily deformable and can match the elastic deformability of the gasket 123 (as described above). Furthermore, such fine particles are better at insulating heat than larger particles. In this way, by using the granular heat insulating material as a material having higher heat insulating properties than air, it is possible to provide the gasket 123 with good heat insulating properties.
  • the material of the resin bag 139 is preferably made of polyethylene, polyvinyl chloride, polypropylene, polystyrene, acrylonitrile-butadiene-styrene, acrylonitrile-styrene, acrylic acid, polybutylene terephthalate Alternatively, it may be formed of thermoplastic resin such as polyethylene terephthalate. This is for thermally welding the resin bag 139 as described below. Thus, by enclosing the granular heat insulating material in the resin bag 139, the gasket 123 which handles the granular heat insulating material easily can be provided.
  • a resin bag 139 is disposed between the root portion 135 fitted in the groove 125 and the flat bag-shaped portion 131 in which the magnet 132 is inserted.
  • the resin bag 139 is constituted by a plurality of heat insulating material enclosed regions 143 partitioned by a plurality of thermally welded portions 141 .
  • a predetermined amount of granular heat insulating material is respectively enclosed in the plurality of heat insulating material enclosing regions 143 .
  • Fig. 9 is a diagram illustrating a method of manufacturing the gasket according to the embodiment of the present invention. Referring to Fig. 9, a method of manufacturing the gasket according to the embodiment of the present invention will be described.
  • a resin sheet forming a resin bag 139 is prepared.
  • a mask is applied to the portion to be heat-sealed in a post-process.
  • the heat-welded portion is insulated, and the heat-welded process becomes difficult. Therefore, masking is performed in order to prevent the particulate heat insulating material from adhering to the thermally welded portion due to static electricity.
  • Masking is performed by applying a solution in which a surfactant, especially an anionic surfactant such as a phosphate ester salt, or a cationic surfactant is dissolved in water, ethanol, or isopropanol.
  • a surfactant especially an anionic surfactant such as a phosphate ester salt, or a cationic surfactant is dissolved in water, ethanol, or isopropanol.
  • the resin sheet of the mask is thermally welded to form a bag having an opening.
  • a predetermined amount of granular heat insulating material is inserted into the resin bag 139 from the opening of the formed bag. Thereafter, the operation of thermally welding the resin sheet to divide the resin bag 139 into a plurality of parts to form the heat insulating material enclosing region 143 enclosing the granular heat insulating material was repeated several times.
  • the opening of the resin bag 139 is thermally welded and closed.
  • the resin bag 139 is pulled and inserted from the opening opposite to the opening of the hollow portion of the gasket 123 , and the resin bag 139 is formed with a plurality of heat insulating material enclosing regions 143 .
  • a gasket 123 with good thermal insulation Furthermore, according to the present invention, there is provided a gasket 123 which is easy to handle granular heat insulating material. Furthermore, according to the invention, a uniformly insulated gasket 123 is provided. Furthermore, according to the present invention, there is provided a method of manufacturing the gasket 123 using a granular heat insulating material.
  • gasket 123 provided according to the present invention, it is possible to provide the refrigerator 101 excellent in heat insulation.

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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)
  • Refrigerator Housings (AREA)
  • Gasket Seals (AREA)

Abstract

提供一种隔热性良好的垫圈(123)，所述垫圈(123)安装在冰箱(101)的门(121)上，在所述门(121)处于关闭状态时密闭所述门(121)与冰箱主体(103)之间的空间，其中，在横截面上，如下部分一体地形成：根部分(135)，安装在形成于门(121)上的凹槽(125)中；翅片部分(137)，从根部分(135)沿门(121)与冰箱主体(103)之间延伸；中空部(133)，安装在根部分(135)；以及平板袋状部分(131)，与中空部(133)邻接，与冰箱主体(103)接触，插入有磁铁(132)，在中空部(133)中插入树脂制的袋(139)，所述袋封入了颗粒状隔热材料。

Description

垫圈及其制造方法 技术领域
本发明涉及一种对冰箱、冰柜以及冷冻箱的门和储藏室进行密封的垫圈及其制造方法。
背景技术
需要开发下一代高性能隔热材料。以往，为了密封冰箱的门和储藏室以使冰箱内部和外部隔热，使用了安装在冰箱门上的垫圈。垫圈设置有中空部，通过向该中空部中充气来提高隔热性能。但是，从节能的观点出发，需要进一步提高隔热性能的冰箱。
在专利文献1(日本特开2016-205597号公报)中记载了，为了进一步提高垫圈的隔热性能，而使用具有第一袋部和中空的第二袋部的垫圈，所述第一袋部容纳颗粒状的隔热材料。并记载了，使用隔热材料包括隔热珠和磁性粉的垫圈，隔热材料以珠子为主要成分、磁性粉的比例为1～30体积％的垫圈，在主体部和门部之间具有垫圈的隔热箱。
但是，上述垫圈存在如下那样的问题：在第一袋部损伤时，粒状的隔热材料和磁性粉漏出来，使清理工作变的困难。此外，上述垫圈存在如下那样的问题：如果第一袋部没有完全填满颗粒状的隔热材料和磁性粉，则隔热材料会分布不均，不能均匀地进行隔热。
发明内容
因此，本发明的目的在于提供一种隔热性良好的垫圈。此外，本发明的另一目的在于提供一种容易处理颗粒状隔热材料的垫圈。此外，本发明的再一目的在于提供一种能均匀地隔热的垫圈。
本发明的垫圈是一种安装在冰箱门上，在所述门处于关闭状态时密封所述门与冰箱主体之间的空间的垫圈，其中，
在横截面上，如下部分一体地形成：
根部分，安装在凹槽中，所述凹槽形成于所述门；
翅片部分，从所述根部分沿所述门与所述冰箱主体之间的空间延伸；
中空部，安装在所述根部分；以及
平板袋状部分，与所述中空部邻接，与所述冰箱主体接触，插入有磁铁，
在所述中空部中插入树脂制的袋，所述袋封入了颗粒状隔热材料。
根据本发明，能够得到隔热性良好的垫圈。根据本发明，能够得到容易处理颗粒状隔热材料的垫圈。
此外，本发明的垫圈的特征在于，所述袋由多个隔热材料封入区域构成，所述多个隔热材料封入区域被热熔接部隔开。
根据本发明，颗粒状隔热材料在袋中不会发生偏斜，能够均匀地隔热。
此外，本发明的垫圈的特征在于，所述树脂制的袋的材料包括聚乙烯、聚氯乙烯、聚丙烯、聚苯乙烯、丙烯腈-丁二烯-苯乙烯、丙烯腈-苯乙烯、丙烯酸、聚对苯二甲酸丁二醇酯、或聚对苯二甲酸乙二醇酯。
根据本发明，能够使用容易热熔接的热可塑性树脂，来形成多个隔热材料封入区域。
此外，本发明的垫圈的特征在于，所述颗粒状隔热材料包括二氧化硅气凝胶、碳气凝胶、聚合物气凝胶、或金属气凝胶。
根据本发明，通过使用隔热性比空气好的气凝胶，从而与将空气充入中空部相比，能够提高隔热性。
本发明的垫圈的制造方法是，其中，
对树脂制片材进行热熔接来形成具有开口的袋，所述树脂制片材在后工序中被热熔接的部分被掩膜，
多次重复如下操作：在从形成的所述袋的所述开口将规定量的颗粒状隔热材料插入所述袋内后，对所述树脂制片材进行热熔接来形成封入了所述颗粒状隔热材料的隔热材料封入区域，
在形成了规定数量的所述隔热材料封入区域后，对所述开口进行热熔接。
根据本发明，特别是通过进行掩膜，从而防止颗粒状隔热材料由于静电而附着于热熔接的部分。通过防止颗粒状隔热材料附着于热熔接的部分，从而能够避免热量因该颗粒的隔热性能而难以传递到热熔接的部分，能够使热熔接变得容易。
发明效果
根据本发明，提供一种隔热性良好的垫圈。根据本发明，还提供一种容易处理粒状隔热材料的垫圈。此外，根据本发明，提供一种均匀地隔热的垫圈。此外，根据本发明，提供一种使用颗粒状隔热材料的垫圈的制造方法。
附图说明
图1是本发明实施方式的冰箱的立体示意图。
图2是本发明实施方式的冰箱主体的立体示意图。
图3是本发明实施方式的冰箱门的立体示意图。
图4是本发明实施方式的冰箱门的立体分解示意图，(a)部分示出取下垫圈后的门，(b)部分示出垫圈。
图5是图1中的冰箱沿A-A线的剖视图。
图6是图5的冰箱主体、门和垫圈的放大剖视图。
图7是本发明实施方式的垫圈的正面剖视图。
图8是本发明实施方式的垫圈的侧面剖视图。
图9是示出本发明实施方式的垫圈的制造方法的图。
具体实施方式
以下，参照附图来说明用于实施本发明的各种实施方式。此外，以下说明的垫圈用于将本公开的技术思想具体化，只要没有特定的记载，本公开就不限定于以下内容。考虑到要点的说明或理解的容易性，在不同的附图中为了方便而相同地示出标号。特别地，对于同样的结构所带来的同样的作用效果，在每个实施方式或实施例中不依次提及。为了明确说明，有时也夸张地示出各附图所示的构件的大小、位置关系等。
(关于冰箱的整体结构)
图1是本发明实施方式的冰箱101的立体示意图。图2是本发明实施方式的冰箱主体103的立体示意图。参照图1和图2，说明了本发明实施方式的冰箱101的整体结构。
如图1所示，本发明的一个实施方式的冰箱101具有冰箱主体103和门105，所述冰箱主体103能够在其内部储藏食品等。冰箱主体103在其前方具有开口。门105对冰箱主体103的开口进行开闭。
如图2所示，冰箱主体103呈箱状，除了前侧的开口之外，包围了配置有隔热材料的冰箱主体103的上表面部、下表面部、背面部、面对时右侧的侧面部、面对时左侧的侧面部这5个面。该内箱整体成为储藏室113。储藏室113具有多个搁板115a、115b、115c、115d、115e。在这些搁板115a、115b、115c、115d、115e中的每一个上，能够储藏多个食品等。因此，能够有效地利用储藏室113的空间。
上表面部的开口侧的凸缘部111a、下表面部的开口侧的凸缘部111b、面对时右侧的侧面部的开口侧的凸缘部111c、以及面对时左侧的侧面部的开口侧的凸缘部111d形成了四边形。在门105关闭冰箱主体103时，上表面部的开口侧的凸缘部111a、下表面部的开口侧的凸缘部111b、面对时右侧的侧面部的开口侧的凸缘部111c、以及面对时左侧的侧面部的开口侧的凸缘部111d与之后图示的垫圈123紧贴。冰箱也可以不限于长方体，但从设置的稳定性考虑，优选为长方体。在本实施方式中，示出了1门的冰箱，但也可以是2门、3门、4门、5门或6门的冰箱。此外，在本实施方式中，示出了冰箱，但也可以是冷冻箱、冷藏箱。
(门和垫圈的说明)
图3是本发明实施方式的冰箱101的门105的立体示意图。图4是本发明实施方式的冰箱101的门105的立体分解示意图，(a)是取下垫圈123后的门121，(b)是垫圈123。图5是图1中的冰箱沿A-A线剖视图。参照图3～5，说明冰箱101的门121和垫圈123。
如图3所示，门105与冰箱主体103的开口侧的各凸缘部111a、111b、111c、111d适配，呈大致长方形状。在本实施方式中，呈长方形，但也可以配合冰箱主体103的开口，形成圆、椭圆、正方形、其他形状。
门105的内面可包括具有储藏功能的搁板。门105具有一定的厚度，具有隔热性。如后所述，通过利用垫圈123切断外部空气，从而使冰箱101具有保温性。如图1所示，门105的外表面为平面。
如图4所示，门105可分离为图4(a)所示的门外形构件121和图4(b)所示的垫圈123。门外形构件121占据门的外形和功能的大半，以后不区分地称为门。
冰箱主体103的开口侧的凸缘部111a、111b、111c、111d由涂装钢板形成，是用于与安装在门105上的垫圈进行紧贴的吸附部。垫圈123配置在与吸附部对应的位置。因此，垫圈123设置在与门121的该四边的吸附部对应的整个周围。如后所图示，在门121的整个周围形成有凹槽125。垫圈123通过将作为垫圈123的一部分的根部分135插入到凹槽125中而安装在门121上。
如图5所示，门121关闭了冰箱主体103的开口。垫圈123在门121的左右两侧配置在冰箱主体103和门121之间。冰箱主体103和门121形成了作为封闭空间的储藏室113。
当门121处于关闭状态时，垫圈123通过切断冰箱主体103的冰箱内的空气和门121外的空气，而密封内部。通过密封内部，从而使冰箱内的空气与外部空气分 离而被冷却，温度下降。
(垫圈的说明)
图6是图5的冰箱主体103、门121和垫圈123的放大剖视图。参照图6，对本发明实施方式的垫圈123进行更详细说明。
垫圈123能够使用聚氨酯橡胶、硅橡胶、乙丙橡胶、氯丁二烯橡胶等橡胶、聚乙烯树脂、聚氯乙烯等。这些材质考虑耐候性、耐化学性等来选择即可。
上述材质的垫圈123具有弹性变形性。即，垫圈123在关闭门121时与冰箱主体103的吸附部对应而容易地压缩变形，在打开门121且垫圈123离开冰箱主体103时复原。由此，能够密封储藏室113内部。
如图6所示，垫圈123具有安装在凹槽125中的根部分135，所述凹槽125形成于门121。在门121的整个周围形成有截面为圆形的凹槽125，根部分135在与凹槽125紧密嵌合的本体的末端包括具有箭头截面的止动件，所述根部分135安装在垫圈123的凹槽125中。如上所述，由于垫圈123的弹性变形性，垫圈123能够通过压缩嵌入门121后复原来安装。
安装在凹槽125中的根部分135利用与凹槽125紧密嵌合的本体，能够防止空气从门121和垫圈123之间连通。此外，通过上述具有箭头截面的止动件，在打开门121时，冰箱主体103和垫圈123的紧贴力克服垫圈123和门121的连接力，垫圈123不会脱落。
此外，垫圈123具有翅片部分137，所述翅片部分137从根部分135沿门121和冰箱主体103之间延伸。垫圈123在门121关闭时，翅片部分137弹性变形，与凹槽125的周围附近的平坦部分紧贴，由此，进一步密封冰箱主体103和门121。
此外，垫圈123具有中空部133，所述中空部133安装于根部分135。中空部133通常具有使冰箱101的外部和内部隔热的功能。此外，中空部133通过弹性变形而与冰箱主体103的吸附部对应地变形。
此外，垫圈123具有平板袋状部分131，所述平板袋状部分131与中空部133邻接，插入有磁铁132。平板袋状部分131与冰箱主体103接触。由于冰箱主体103由含有铁、镍、钴等强磁性体的构件构成，因此插入的磁铁132与冰箱主体103紧贴。由于安装在槽125中的根部分135、翅片部分137、中空部133以及插入有磁铁132的平板袋状部分131为一体，所以垫圈123能够吸引门121和冰箱主体103。垫圈123在门121关闭时，通过插入有磁铁132的平板袋状部分131，与冰箱主体103的吸附部紧贴。
(封入了颗粒状隔热材料的垫圈的说明)
图7是本发明实施方式的垫圈123的正面剖视图。图8是本发明实施方式的垫圈123的侧面剖视图。参照图7和图8，对本发明实施方式的封入了颗粒状隔热材料的垫圈123进行说明。
如图7所示，在正面的剖视图中，垫圈123一体地形成有安装在凹槽125中的根部分135、翅片部分137、中空部133以及插入有磁铁132的平板袋状部分131。在中空部133中插入树脂制的袋139，所述袋139封入了颗粒状隔热材料。
颗粒状隔热材料是隔热性高于空气的材料，例如二氧化硅气凝胶、碳气凝胶、聚合物气凝胶或金属气凝胶。此外，颗粒状隔热材料优选为100μm左右以下的细小颗粒。这是因为，这样的颗粒容易变形，能够配合垫圈123的弹性变形性(如上所述)。此外，这样细小的颗粒的隔热性优于大的颗粒。这样，通过将颗粒状隔热材料作为隔热性高于空气的材料，能够提供隔热性良好的垫圈123。
树脂制的袋139的材料优选由聚乙烯、聚氯乙烯、聚丙烯、聚苯乙烯、丙烯腈-丁二烯-苯乙烯、丙烯腈-苯乙烯、丙烯酸、聚对苯二甲酸丁二醇酯或者聚对苯二甲酸乙二醇酯等热塑性树脂形成。如下所述，这是为了对树脂制的袋139热熔接。这样，通过在树脂制的袋139中封入颗粒状隔热材料，能够提供容易处理颗粒状隔热材料的垫圈123。
如图8所示，树脂制的袋139配置于安装在凹槽125中的根部分135与插入有磁铁132的平板袋状部分131之间。树脂制的袋139由多个隔热材料封入区域143构成，所述多个隔热材料封入区域143被多个热熔接部141隔开。在多个隔热材料封入区域143中分别封入规定量的颗粒状隔热材料。由此，能够提供均匀地隔热的垫圈123，其中颗粒状隔热材料不会因重力而堆积在冰箱101的下方。
(本实施方式的垫圈的制造方法)
图9是示出本发明实施方式的垫圈的制造方法的图。参照图9，说明本发明实施方式的垫圈的制造方法。
如图9所示，首先，准备树脂制的片材，所述片材形成树脂制的袋139。接着，在树脂制的片材上，对在后工序中热熔接的部分进行掩膜。当颗粒状隔热材料附着于热熔接的部分时，热熔接的部分被隔热，热熔接的工序变得困难。因此，为了防止颗粒状隔热材料由于静电而附着于热熔接的部分，而进行掩膜。
掩膜通过涂布溶液来进行，所述溶液是将表面活性剂、特别是磷酸酯盐等阴离子表面活性剂、阳离子表面活性剂，溶解于水、乙醇或异丙醇中的溶液。接着，对 掩膜的树脂制片材进行热熔接来形成具有开口的袋。
接着，从形成的袋的开口将规定量的颗粒状隔热材料插入到树脂制的袋139内。之后，多次重复如下操作：以将树脂制的袋139分隔成多个部位的方式对树脂制片材进行热熔接，来形成封入了颗粒状隔热材料的隔热材料封入区域143。
接着，在形成了规定数量的隔热材料封入区域143之后，对树脂制的袋139的开口进行热熔接来封闭。
这样，树脂制的袋139从垫圈123的中空部的与插入的开口相反侧的开口被拉拽插入，所述树脂制的袋139形成有多个隔热材料封入区域143。
根据本发明，提供一种隔热性良好的垫圈123。此外，根据本发明，提供一种容易处理颗粒状隔热材料的垫圈123。此外，根据本发明，提供一种均匀隔热的垫圈123。此外，根据本发明，提供一种使用颗粒状隔热材料的垫圈123的制造方法。
上述实施方式的说明在全部方面都是示例性的，而不是限制性的。对于本领域技术人员来说，能够适当地进行变形和变更。本发明的范围不是上述实施方式，而是由权利要求书示出。此外，在本发明的范围中，包括与权利要求书等同的范围内的实施方式的变更。
产业上的可利用性
使用根据本发明提供的垫圈123，能够提供隔热性优异的冰箱101。

Claims (11)

  1. 一种垫圈，安装在冰箱门上，在所述门处于关闭状态时密闭所述门与冰箱主体之间的空间，其特征在于，
    在横截面上，如下部分一体地形成：
    根部分，安装在凹槽中，所述凹槽形成于所述门；
    翅片部分，从所述根部分沿所述门与所述冰箱主体之间的空间延伸；
    中空部，安装在所述根部分；以及
    平板袋状部分，与所述中空部邻接，与所述冰箱主体接触，插入有磁铁，
    在所述中空部中插入树脂制的袋，所述袋封入了颗粒状隔热材料。
  2. 根据权利要求1所述的垫圈，其特征在于：所述袋由多个隔热材料封入区域构成，所述多个隔热材料封入区域被热熔接部隔开。
  3. 根据权利要求2所述的垫圈，其特征在于：所述树脂制的袋的材料包括聚乙烯、聚氯乙烯、聚丙烯、聚苯乙烯、丙烯腈-丁二烯-苯乙烯、丙烯腈-苯乙烯、丙烯酸、聚对苯二甲酸丁二醇酯、或聚对苯二甲酸乙二醇酯。
  4. 根据权利要求1中所述的垫圈，其特征在于：所述颗粒状隔热材料包括二氧化硅气凝胶、碳气凝胶、聚合物气凝胶、或金属气凝胶。
  5. 根据权利要求1中所述的垫圈，其特征在于：所述颗粒状隔热材料为100μm及以下的细小颗粒。
  6. 一种垫圈的制造方法，其特征在于，包括如下步骤：
    对树脂制片材进行热熔接来形成具有开口的袋，所述树脂制片材的部分被掩膜，所述部分在后工序中被热熔接，
    多次重复如下操作：在从形成的所述袋的所述开口将规定量的颗粒状隔热材料插入所述袋内后，对所述树脂制片材进行热熔接来形成封入了所述颗粒状隔热材料的隔热材料封入区域，
    在形成了规定数量的所述隔热材料封入区域后，对所述开口进行热熔接。
  7. 根据权利要求6中所述的垫圈的制造方法，其特征在于：通过涂布溶液来进行掩膜所述树脂制片材的部分。
  8. 根据权利要求7中所述的垫圈的制造方法，其特征在于：所述溶液是将阴离子表面活性剂、阳离子表面活性剂溶解于水、乙醇或异丙醇中的溶液。
  9. 根据权利要求6中所述的垫圈的制造方法，其特征在于：树脂制的袋从垫圈的中空部的与插入的开口相反侧的开口被拉拽插入。
  10. 根据权利要求6中所述的垫圈的制造方法，其特征在于：所述颗粒状隔热材料为100μm及以下的细小颗粒，所述颗粒状隔热材料包括二氧化硅气凝胶、碳气凝胶、聚合物气凝胶、或金属气凝胶。
  11. 根据权利要求6所述的垫圈，其特征在于：树脂制的袋的材料包括聚乙烯、聚氯乙烯、聚丙烯、聚苯乙烯、丙烯腈-丁二烯-苯乙烯、丙烯腈-苯乙烯、丙烯酸、聚对苯二甲酸丁二醇酯、或聚对苯二甲酸乙二醇酯。
PCT/CN2022/136261 2021-12-03 2022-12-02 垫圈及其制造方法 WO2023098884A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004340420A (ja) * 2003-05-13 2004-12-02 Toshiba Corp 冷蔵庫
JP2009293770A (ja) * 2008-06-09 2009-12-17 Hitachi Appliances Inc 真空断熱材及びこれを用いた冷蔵庫
JP2016205597A (ja) * 2015-04-28 2016-12-08 パナソニック株式会社 ガスケットとそのガスケットを用いた断熱箱
CN107806730A (zh) * 2016-09-09 2018-03-16 松下电器产业株式会社 冰箱

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004340420A (ja) * 2003-05-13 2004-12-02 Toshiba Corp 冷蔵庫
JP2009293770A (ja) * 2008-06-09 2009-12-17 Hitachi Appliances Inc 真空断熱材及びこれを用いた冷蔵庫
JP2016205597A (ja) * 2015-04-28 2016-12-08 パナソニック株式会社 ガスケットとそのガスケットを用いた断熱箱
CN107806730A (zh) * 2016-09-09 2018-03-16 松下电器产业株式会社 冰箱

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