TW202334594A - (無) - Google Patents

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TW202334594A
TW202334594A TW112105653A TW112105653A TW202334594A TW 202334594 A TW202334594 A TW 202334594A TW 112105653 A TW112105653 A TW 112105653A TW 112105653 A TW112105653 A TW 112105653A TW 202334594 A TW202334594 A TW 202334594A
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Taiwan
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heat insulating
box
insulating material
thickness
heat
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TW112105653A
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Chinese (zh)
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田頭修平
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日商夏普股份有限公司
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Publication of TW202334594A publication Critical patent/TW202334594A/en

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    • 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
    • F25D23/08Parts formed wholly or mainly of plastics materials
    • 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
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • 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
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

A refrigerator (1) is provided with a heat insulation box (50). The heat insulation box (50) has an inner box (70) and an outer box (60). A vacuum heat insulation material (51) is arranged inside the heat insulation box (50). The heat insulation box (50) is filled with a foamed heat insulation material (52). In the lateral portion (50b) of the heat insulation box (50), the region where the thickness (T2) of the foamed heat insulation material (52) opposite to the vacuum heat insulation material (51) is less than the thickness (T1) of the vacuum heat insulation material (51) is larger than the region where the thickness (T2) of the foamed heat insulation material (52) is greater than the thickness (T1) of the vacuum heat insulation material (51). In a back portion (50c) of the heat insulation box (50), the thickness (T8) of the foamed heat insulation material (52) in a region opposite to the vacuum heat insulation material (51) is greater than the thickness (T2) of the foamed heat insulation material (52) in a region opposite to the vacuum heat insulation material (51) in the lateral portion (50b) of the heat insulation box (50).

Description

隔熱箱體及冰箱Insulated boxes and refrigerators

本發明涉及冰箱等所具備的隔熱箱體以及具備該隔熱箱體的冰箱。The present invention relates to a heat-insulating box provided in a refrigerator or the like, and a refrigerator equipped with the heat-insulating box.

為了進行與周圍的隔熱,在冰箱中以覆蓋儲藏空間的外周的方式設有隔熱箱體。隔熱箱體由外箱、內箱和填充在它們之間的發泡隔熱材料等構成。作為隔熱材料,例如使用硬質發泡聚氨酯隔熱材料等發泡隔熱材料。In order to perform heat insulation from the surroundings, the refrigerator is provided with a heat insulating box covering the outer periphery of the storage space. The thermal insulation box is composed of an outer box, an inner box and foam insulation materials filled between them. As the heat insulating material, for example, a foam heat insulating material such as a rigid foamed polyurethane heat insulating material is used.

近年來,為了進一步提高隔熱性能,提出了在隔熱箱體內配置真空隔熱材料的方案。例如,在日本特開2006-183896號公報中公開了如下冰箱:在隔熱壁內具有真空隔熱材料和發泡隔熱材料的冰箱中,使真空隔熱材料的體積占隔熱壁整體體積的比率為規定值以上。In recent years, in order to further improve the thermal insulation performance, the solution of arranging vacuum insulation materials in the thermal insulation box has been proposed. For example, Japanese Patent Application Publication No. 2006-183896 discloses a refrigerator in which a vacuum heat insulating material and a foam heat insulating material are included in a heat insulating wall so that the volume of the vacuum heat insulating material occupies the entire volume of the heat insulating wall. ratio is above the specified value.

本發明所要解決的技術問題Technical problems to be solved by the present invention

通過使用真空隔熱材料,提高了隔熱性能,並使隔熱箱體的厚度變薄。然而,由於隔熱箱體的厚度變薄,隔熱箱體內的發泡隔熱材料流動的空間變窄,發泡隔熱材料變得難以流動,因此,在隔熱材料發泡後有可能產生未填充發泡隔熱材料的空隙(void)。By using vacuum insulation materials, the insulation performance is improved and the thickness of the insulation box is made thinner. However, as the thickness of the heat insulating box becomes thinner, the space for the foamed heat insulating material to flow in the heat insulating box becomes narrower, making it difficult for the foamed heat insulating material to flow. Therefore, after the heat insulating material is foamed, it is possible to produce The voids (voids) of the foam insulation material are not filled.

因此,本發明的目的在於,提供一種在向隔熱箱體注入發泡隔熱材料時,能夠在隔熱箱體內更容易填充發泡隔熱材料的構成。 解決問題的手段 Therefore, an object of the present invention is to provide a structure that can make it easier to fill the heat insulating box with the foamed heat insulating material when injecting the foamed heat insulating material into the heat insulating box. means of solving problems

本發明的一方面涉及的隔熱箱體具有內箱和外箱。該隔熱箱體具備:真空隔熱材料,其配置於所述隔熱箱體內;發泡隔熱材料,其填充於所述隔熱箱體的內部;以及至少一個注入口,其配置於所述隔熱箱體的背面,注入所述發泡隔熱材料的材料。在所述隔熱箱體的側面部中,與所述真空隔熱材料相對的發泡隔熱材料的厚度小於所述真空隔熱材料的厚度的區域比所述真空隔熱材料的厚度以上的區域多,在所述隔熱箱體的背面部中,與所述真空隔熱材料相對的區域的所述發泡隔熱材料的厚度比所述隔熱箱體的側面部的與所述真空隔熱材料相對的區域的所述發泡隔熱材料的厚度大。 發明效果 One aspect of the present invention relates to a heat-insulating box having an inner box and an outer box. The heat-insulating box is provided with: a vacuum heat-insulating material arranged inside the heat-insulating box; a foam heat-insulating material filled inside the heat-insulating box; and at least one injection port arranged inside the heat-insulating box. The foamed heat insulating material is injected into the back of the heat insulating box. In the side portion of the heat insulating box, a region where the thickness of the foamed heat insulating material facing the vacuum heat insulating material is less than the thickness of the vacuum heat insulating material is larger than the thickness of the vacuum heat insulating material. There are many areas. In the back part of the heat insulating box, the thickness of the foam heat insulating material in the area opposite to the vacuum heat insulating material is thicker than the thickness of the side part of the heat insulating box opposite to the vacuum heat insulating material. The thickness of the foamed heat insulating material is large in the area opposite to the heat insulating material. Invention effect

根據本發明的一方面的隔熱箱體,在注入發泡隔熱材料時,能夠使發泡隔熱材料更容易填充到隔熱箱體內。According to the heat-insulating box of one aspect of the present invention, when the foamed heat-insulating material is injected, the foamed heat-insulating material can be filled into the heat-insulating box more easily.

以下,參照附圖說明本發明的各實施方式。以下說明中,對相同部件標注相同附圖標記。它們的名稱以及功能也相同。因此,關於它們的詳細說明將不再重複。Hereinafter, each embodiment of the present invention will be described with reference to the drawings. In the following description, the same components are assigned the same reference numerals. Their names and functions are also the same. Therefore, detailed descriptions about them will not be repeated.

<第一實施方式> (冰箱的整體構成) 首先,說明第一實施方式的冰箱1的整體構成。圖1表示冰箱1的內部構成。 <First Embodiment> (The overall composition of the refrigerator) First, the overall structure of the refrigerator 1 according to the first embodiment will be described. FIG. 1 shows the internal structure of the refrigerator 1.

如圖1所示,冰箱1在上段具備冷藏室11,在中段具備蔬菜室12,在下段具備冷凍室13等。冷藏室11中設置有冷藏室門11a。蔬菜室12中設置有蔬菜室門12a。冷凍室13中設置有冷凍室門13a。As shown in FIG. 1 , the refrigerator 1 is provided with a refrigerator compartment 11 in an upper section, a vegetable compartment 12 in a middle section, a freezer compartment 13 in a lower section, and the like. The refrigerating compartment door 11a is provided in the refrigerating compartment 11. The vegetable compartment 12 is provided with a vegetable compartment door 12a. The freezing chamber 13 is provided with a freezing chamber door 13a.

如上所述,本實施方式的冰箱1被劃分為上段部、中段部以及下段部,並設有各儲藏空間。在各儲藏空間之間設有分隔部。更具體而言,在上段的冷藏室11和中段的蔬菜室12之間設有第一分隔部54。此外,在中段的蔬菜室12和下段的冷凍室13之間設有第二分隔部(分隔部)55。並且,關於各儲藏空間的配置位置,並不限定於此。As mentioned above, the refrigerator 1 of this embodiment is divided into an upper stage part, a middle stage part, and a lower stage part, and each storage space is provided. A partition is provided between each storage space. More specifically, the first partition 54 is provided between the upper refrigerator compartment 11 and the middle vegetable compartment 12 . In addition, a second partition (partition) 55 is provided between the vegetable compartment 12 in the middle section and the freezing compartment 13 in the lower section. In addition, the arrangement position of each storage space is not limited to this.

在本實施方式中,將設有門的面稱為冰箱的正面或前面。並且,以前面為基準,基於在通常狀態下設置冰箱1時所存在的位置,將冰箱1的各面設為上面、側面、背面以及底面。此外,在將冰箱1載置於設置面的狀態下,將冰箱1的上下方向稱為冰箱1(或隔熱箱體50等)的上下方向。此外,在將冰箱1載置於設置面的狀態下,將從正面觀察冰箱1時的前後的方向稱為冰箱1(或者隔熱箱體50等)的前後方向。In this embodiment, the surface provided with the door is called the front or front of the refrigerator. Furthermore, with the front surface as a reference, each surface of the refrigerator 1 is defined as an upper surface, a side surface, a back surface, and a bottom surface based on the position where the refrigerator 1 exists when the refrigerator 1 is installed in a normal state. In addition, when the refrigerator 1 is placed on the installation surface, the up-down direction of the refrigerator 1 is called the up-down direction of the refrigerator 1 (or the heat insulation box 50, etc.). In addition, when the refrigerator 1 is placed on the installation surface, the front-to-back direction when viewing the refrigerator 1 from the front is called the front-to-back direction of the refrigerator 1 (or the heat insulation box 50, etc.).

在冰箱1的內部設置有製冷循環。製冷循環是經由供製冷劑流通的製冷劑管(製冷劑流路),將壓縮機31、冷凝器(未圖示)、膨脹器(未圖示)以及冷卻器32連接而構成的。A refrigeration cycle is provided inside the refrigerator 1 . The refrigeration cycle is configured by connecting a compressor 31, a condenser (not shown), an expander (not shown), and a cooler 32 via a refrigerant pipe (refrigerant flow path) through which refrigerant flows.

此外,在冰箱1的內部設置有控制部(未圖示)。該控制部對製冷循環的運轉進行控制。即,控制部通過驅動壓縮機31,開始製冷循環的運轉,製冷劑在循環內流通。如圖1所示,壓縮機31配置在設於冰箱1的底部的背面側的機械室30內。In addition, a control unit (not shown) is provided inside the refrigerator 1 . This control unit controls the operation of the refrigeration cycle. That is, the control unit drives the compressor 31 to start the operation of the refrigeration cycle, and the refrigerant circulates in the cycle. As shown in FIG. 1 , the compressor 31 is disposed in the machine room 30 provided on the back side of the bottom of the refrigerator 1 .

冷卻器32配置在設於冰箱1的背面側的冷卻室35內。在冷卻室35內,除了冷卻器32以外,還具備冷卻風扇33等。冷卻風扇33是為了使空氣在冷卻室35與各儲藏空間之間循環而設置的。冷卻室35與冷氣管道41連通。冷氣管道41成為用於將在冷卻室35生成的冷氣向冷藏室11等供給的冷氣通道。The cooler 32 is arranged in the cooling chamber 35 provided on the back side of the refrigerator 1 . In addition to the cooler 32, the cooling chamber 35 is provided with a cooling fan 33 and the like. The cooling fan 33 is provided to circulate air between the cooling chamber 35 and each storage space. The cooling chamber 35 is connected to the cold air duct 41 . The cold air duct 41 serves as a cold air passage for supplying the cold air generated in the cooling chamber 35 to the refrigerator compartment 11 and the like.

(隔熱箱體的構成) 在冰箱1中,作為用於將各儲藏空間從周圍隔熱的隔熱結構,設置有隔熱箱體50。圖2表示從正面側(開口部50e側)觀察隔熱箱體50時的外觀。隔熱箱體50以覆蓋冰箱1的外周的方式設置。隔熱箱體50主要由上面部、側面部50b、背面部50c以及底面部構成。隔熱箱體50的正面側為開口的開口部50e。 (Construction of heat insulation box) The refrigerator 1 is provided with a heat insulating box 50 as a heat insulating structure for insulating each storage space from the surroundings. FIG. 2 shows the appearance of the heat insulating box 50 when viewed from the front side (the opening 50e side). The heat insulating box 50 is provided to cover the outer periphery of the refrigerator 1 . The heat insulating box 50 is mainly composed of an upper surface portion, a side surface portion 50b, a back surface portion 50c, and a bottom surface portion. The front side of the heat insulating box 50 is an open opening 50e.

如圖1所示,隔熱箱體50主要包括外箱60、內箱70、真空隔熱材料51、發泡隔熱材料52和至少一個分隔部(例如,第一分隔部54及第二分隔部55)。As shown in FIG. 1 , the thermal insulation box 50 mainly includes an outer box 60 , an inner box 70 , a vacuum insulation material 51 , a foam insulation material 52 and at least one partition (for example, a first partition 54 and a second partition Part 55).

外箱60形成隔熱箱體50的外周面。外箱60主要由上面部60a、側面部60b、背面部60c以及底面部構成(參照圖3)。內箱70形成隔熱箱體50的內周面。內箱70主要由上面部、側面部70b、背面部70c以及底面部70d構成(參照圖2)。內箱70形成儲藏空間(例如冷藏室11、蔬菜室12、冷凍室13)的內壁和冷卻室35的後壁。The outer box 60 forms the outer peripheral surface of the heat insulating box 50 . The outer box 60 mainly consists of an upper surface part 60a, a side part 60b, a back part 60c, and a bottom surface part (refer FIG. 3). The inner box 70 forms the inner peripheral surface of the heat insulating box 50 . The inner box 70 is mainly composed of an upper surface part, a side surface part 70b, a back surface part 70c, and a bottom surface part 70d (see FIG. 2 ). The inner box 70 forms the inner wall of the storage space (for example, the refrigerator compartment 11, the vegetable compartment 12, the freezing compartment 13) and the rear wall of the cooling chamber 35.

由內箱70形成的隔熱箱體50的內部被至少一個分隔件劃分成多個空間。在本實施方式中,具備第一分隔部54和第二分隔部55這兩個分隔部。第一分隔部54配置在冷藏室11與蔬菜室12之間。第二分隔部55配置在蔬菜室12與冷凍室13之間。The interior of the heat insulating box 50 formed by the inner box 70 is divided into a plurality of spaces by at least one partition. In this embodiment, two partition parts, a first partition part 54 and a second partition part 55 are provided. The first partition 54 is arranged between the refrigerator compartment 11 and the vegetable compartment 12 . The second partition 55 is arranged between the vegetable compartment 12 and the freezing compartment 13 .

並且,在隔熱箱體50的底部的背面側形成有用於配置機械室30的空間。機械室30配置在隔熱箱體50的外側。這是因為,通過壓縮機31運轉,機械室30內的溫度上升。機械室30主要由構成外箱60的底面部的底板62劃分。Furthermore, a space for arranging the machine room 30 is formed on the back side of the bottom of the heat insulating box 50 . The machine room 30 is arranged outside the heat insulating box 50 . This is because the temperature in the machine room 30 rises due to the operation of the compressor 31 . The machine room 30 is mainly divided by the bottom plate 62 constituting the bottom surface of the outer box 60 .

這樣,機械室30與冷凍室13被隔熱箱體50隔離。因此,能夠抑制在機械室30內產生的熱流入到冷凍室13。In this way, the machine room 30 and the freezing room 13 are isolated by the heat insulating box 50 . Therefore, the heat generated in the machine room 30 can be suppressed from flowing into the freezing chamber 13 .

真空隔熱材料51和發泡隔熱材料52設置在外箱60與內箱70之間的空間內。真空隔熱材料51也被稱為 VIP,是薄片狀或板狀的隔熱材料。真空隔熱材料51例如分別配置於冰箱1的側面、上面、底面和背面等。在圖1中,省略配置在冰箱1的底面的真空隔熱材料的圖示。如圖1等所示,真空隔熱材料51配置在隔熱箱體50內的外箱60側。The vacuum insulation material 51 and the foam insulation material 52 are provided in the space between the outer box 60 and the inner box 70 . The vacuum insulation material 51 is also called VIP, and is a sheet-like or plate-like insulation material. For example, the vacuum heat insulating materials 51 are respectively arranged on the side surfaces, upper surfaces, bottom surfaces, back surfaces, etc. of the refrigerator 1 . In FIG. 1 , illustration of the vacuum heat insulating material arranged on the bottom surface of the refrigerator 1 is omitted. As shown in FIG. 1 etc., the vacuum heat insulating material 51 is arrange|positioned in the heat insulation box 50 on the outer box 60 side.

發泡隔熱材料52例如可以由發泡聚氨酯(也稱為硬質聚氨酯泡沫)等形成。發泡隔熱材料52也填充在分隔作為冷藏儲藏空間的蔬菜室12和作為冷凍儲藏空間的冷凍室13的第二分隔部55的內部。在本實施方式中,分隔作為冷藏貯藏空間的冷藏室11和蔬菜室12的第一分隔部54的內部未填充發泡隔熱材料52。在第一分隔部54的內部也可以配置與發泡隔熱材料52不同的隔熱材料。並且,在其他的實施方式中,也可以在第一分隔部54的內部也填充發泡隔熱材料52。The foamed heat insulating material 52 may be formed of, for example, foamed polyurethane (also called rigid polyurethane foam) or the like. The foamed heat insulating material 52 is also filled in the second partition part 55 that partitions the vegetable compartment 12 as a refrigerated storage space and the freezing compartment 13 as a frozen storage space. In this embodiment, the foamed heat insulating material 52 is not filled in the first partition part 54 that partitions the refrigerator compartment 11 and the vegetable compartment 12 which are refrigerated storage spaces. A heat insulating material different from the foam heat insulating material 52 may be disposed inside the first partition 54 . Furthermore, in other embodiments, the inside of the first partition 54 may also be filled with the foamed heat insulating material 52 .

發泡隔熱材料52將液狀的發泡聚氨酯材料(發泡隔熱材料的材料、也稱為隔熱材料)注入隔熱箱體50內,使材料在隔熱箱體50內發泡,從而填充在隔熱箱體50內。外箱60的背面部60c上設置有注入隔熱材料的注入口58(參照圖5)。在本實施方式中,在背面部60c的左側的端部附近設置有2個注入口58,在背面部60c的右側的端部附近設置有2個注入口58,設置有共計4個注入口58。但是,注入口58的個數不限於此。The foamed heat insulating material 52 injects liquid foamed polyurethane material (the material of the foamed heat insulating material, also called heat insulating material) into the heat insulating box 50, so that the material foams in the heat insulating box 50. Thereby, it is filled in the heat insulation box 50 . The back portion 60c of the outer box 60 is provided with an injection port 58 for injecting the heat insulating material (see FIG. 5 ). In this embodiment, two injection ports 58 are provided near the left end of the back portion 60c, and two injection ports 58 are provided near the right end of the back portion 60c. A total of four injection ports 58 are provided. . However, the number of injection ports 58 is not limited to this.

圖2示出向隔熱箱體50注入發泡聚氨酯材料時的隔熱箱體50。在向隔熱箱體50注入發泡聚氨酯材料時,如圖2所示,僅將第二分隔部55安裝於隔熱箱體50的箱內。由此,如果從注入口58注入發泡隔熱材料,則經由設置於內箱70與第二分隔部55之間的聚氨酯流入口,在第二分隔部55的內部也填充發泡隔熱材料52。FIG. 2 shows the heat insulating box 50 when the foamed polyurethane material is injected into the heat insulating box 50 . When the foamed polyurethane material is injected into the heat insulating box 50 , as shown in FIG. 2 , only the second partition 55 is installed inside the heat insulating box 50 . Accordingly, when the foamed heat insulating material is injected from the injection port 58 , the foamed heat insulating material is also filled into the inside of the second partition 55 via the polyurethane inlet provided between the inner box 70 and the second partition 55 52.

(關於隔熱箱體的側壁的厚度和真空隔熱件的厚度) 在近年來的冰箱中,以確保更大的箱內空間等為目的,希望隔熱箱體50的側壁的薄型化。因此,在本實施方式中,謀求隔熱箱體50的各面(例如側面部50b)的壁的薄型化。 (About the thickness of the side walls of the insulated box and the thickness of the vacuum insulation) In recent refrigerators, for the purpose of ensuring a larger interior space, it is desired to reduce the thickness of the side wall of the heat insulating box 50 . Therefore, in this embodiment, the wall thickness of each surface (for example, the side part 50b) of the heat insulation box 50 is made thin.

圖4示意性地表示隔熱箱體50的側壁內的構成。圖4是圖3所示的隔熱箱體50的A-A線部分的截面圖。此外,在圖4中,放大示出隔熱箱體50的一部分(由虛線框包圍的部分)。FIG. 4 schematically shows the structure within the side wall of the heat insulating box 50 . FIG. 4 is a cross-sectional view of the heat insulating box 50 taken along line A-A shown in FIG. 3 . In addition, in FIG. 4 , a part of the heat insulating box 50 (a portion surrounded by a dotted frame) is shown in an enlarged manner.

本實施方式的隔熱箱體50的側面部50b的平均厚度例如為25mm以上35mm以下。而且,在隔熱箱體50的側面部50b中,與真空隔熱材料51相對的發泡隔熱材料52的厚度T2小於真空隔熱材料51的厚度T1的區域比真空隔熱材料51的厚度T1以上的區域多。The average thickness of the side surface part 50b of the heat insulation box 50 of this embodiment is, for example, 25 mm or more and 35 mm or less. Furthermore, in the side portion 50b of the heat insulating box 50, a region where the thickness T2 of the foamed heat insulating material 52 facing the vacuum heat insulating material 51 is smaller than the thickness T1 of the vacuum heat insulating material 51 is larger than the thickness of the vacuum heat insulating material 51. There are many areas above T1.

配置在側面部50b的真空隔熱材料51的厚度T1在一個真空隔熱材料的整個區域大致一定。在一例中,真空隔熱材料51的厚度T1設定為10mm以上30mm以下,優選設定為15mm以上25mm以下。The thickness T1 of the vacuum heat insulating material 51 arranged on the side part 50b is substantially constant over the entire area of one vacuum heat insulating material. In one example, the thickness T1 of the vacuum heat insulating material 51 is set to 10 mm or more and 30 mm or less, preferably 15 mm or more and 25 mm or less.

另一方面,側面部50b的發泡隔熱材料52的厚度T2根據隔熱箱體50的外形(特別是內箱70的形狀)而在各部分不同。如上所述,在隔熱箱體50的側面部50b中,在真空隔熱材料51存在的區域的大部分、至少在一半以上,厚度T1比T2大。因此,側面部50b的真空隔熱材料51所存在的面積的大部分處的發泡隔熱材料52的厚度T2設定為例如5mm以上15mm以下,優選設定為8mm以上13mm以下。On the other hand, the thickness T2 of the foamed heat insulating material 52 of the side part 50b differs in each part according to the outer shape of the heat insulating box 50 (especially the shape of the inner box 70). As described above, in the side portion 50b of the heat insulating box 50, the thickness T1 is larger than T2 in most, at least half or more, of the area where the vacuum heat insulating material 51 exists. Therefore, the thickness T2 of the foamed heat insulating material 52 in most of the area where the vacuum heat insulating material 51 of the side part 50b exists is set to, for example, 5 mm or more and 15 mm or less, preferably 8 mm or more and 13 mm or less.

在一例中,能夠將真空隔熱材料51的厚度T1設為發泡隔熱材料52的厚度T2的約2倍。這樣,通過在側面部50b提高真空隔熱材料51的比例,能夠進一步減小側面部50b整體的厚度。In one example, the thickness T1 of the vacuum heat insulating material 51 can be approximately twice the thickness T2 of the foam heat insulating material 52 . In this way, by increasing the proportion of the vacuum heat insulating material 51 in the side part 50b, the thickness of the entire side part 50b can be further reduced.

並且,配置於隔熱箱體50的側面部50b以外的面部(即,上面部、底面部)的真空隔熱材料的厚度可以與厚度T1相同,也可以不同。此外,隔熱箱體50的側面部50b以外的面部(即,上面部、底面部)的發泡隔熱材料52的厚度既可以為配置於該面部的真空隔熱材料51的厚度以上,也可以為真空隔熱材料51的厚度以下。In addition, the thickness of the vacuum heat insulating material arranged on the surface portion (that is, the upper surface portion and the bottom surface portion) other than the side surface portion 50b of the heat insulating box 50 may be the same as the thickness T1, or may be different. In addition, the thickness of the foamed heat insulating material 52 on the surface other than the side portion 50b of the heat insulating box 50 (that is, the upper surface and the bottom surface) may be greater than or equal to the thickness of the vacuum heat insulating material 51 disposed on the surface. The thickness may be equal to or less than the thickness of the vacuum heat insulating material 51 .

此外,隔熱箱體50的背面部50c具有與冷卻器32連接的製冷循環的配管和電氣配線等通過的傾向,要求固定這些配管和配線等,進一步確保隔熱性。因此,在本實施方式中,配置於背面部50c的發泡隔熱材料52的厚度T8為配置於背面部50c的真空隔熱材料51c的厚度T7以上(參照圖6)。此外,在本實施方式中,配置於隔熱箱體50的背面部50c的真空隔熱材料51c的厚度T7與配置於側面部50b的真空隔熱材料51b的厚度T1相同或者更小。在一例中,厚度T7為厚度T1的約一半(例如,5mm以上15mm以下)。In addition, the back surface portion 50 c of the heat insulating box 50 tends to have piping and electrical wiring connected to the cooler 32 passing through the refrigeration cycle, and it is required to fix these piping and wiring to further ensure thermal insulation. Therefore, in this embodiment, the thickness T8 of the foam heat insulating material 52 arranged on the back surface part 50c is greater than the thickness T7 of the vacuum heat insulating material 51c arrange|positioned on the back surface part 50c (refer FIG. 6). In addition, in this embodiment, the thickness T7 of the vacuum heat insulating material 51c arranged on the back part 50c of the heat insulating box 50 is the same as or smaller than the thickness T1 of the vacuum heat insulating material 51b arranged on the side part 50b. In one example, the thickness T7 is about half of the thickness T1 (for example, 5 mm or more and 15 mm or less).

(隔熱箱體的製造方法) 接著,說明隔熱箱體50的製造方法。圖5示出向隔熱箱體50注入隔熱材料的情形。 (Method for manufacturing heat-insulating box) Next, a method of manufacturing the heat insulating box 50 will be described. FIG. 5 shows the situation of injecting heat insulating material into the heat insulating box 50 .

首先,在外箱60的各面部(具體而言,上面部60a、側面部60b和背面部60c等)的內側面的規定位置安裝真空隔熱材料51、散熱管(未圖示)等部件。此外,在內箱70的規定位置安裝箱內電裝單元、各種佈線等部件。First, components such as the vacuum heat insulating material 51 and the heat dissipation pipe (not shown) are installed at predetermined positions on the inner surfaces of each surface of the outer box 60 (specifically, the upper surface 60a, the side surface 60b, the back surface 60c, etc.). In addition, in-box electrical components, various wiring and other components are installed at predetermined positions of the inner box 70 .

接著,以覆蓋內箱70的外周的方式安裝外箱60的各面部。由此,形成隔熱箱體50的外形。Next, each surface part of the outer box 60 is attached so as to cover the outer periphery of the inner box 70 . Thereby, the outer shape of the heat insulation box 50 is formed.

之後,在使隔熱箱體50的背面部50c朝上的狀態下,經由形成於外箱60的背面部60c的注入口58注入液體狀的發泡隔熱材料的材料(發泡聚氨酯材料)。此時,在注入口58中插入隔熱材料的注入裝置的注入噴嘴91(參照圖5)。從注入噴嘴91向隔熱箱體50內排出的發泡隔熱材料的材料在外箱60和內箱70之間的空間內從前表面側(開口部50e側)向背面側依次發泡,一邊增加體積一邊填充。發泡的隔熱材料之後固化。Thereafter, with the back surface 50c of the heat insulating box 50 facing upward, a liquid foam heat insulating material (foamed polyurethane material) is injected through the injection port 58 formed in the back surface 60c of the outer box 60 . At this time, the injection nozzle 91 of the heat insulating material injection device is inserted into the injection port 58 (see FIG. 5 ). The foamed heat insulating material discharged from the injection nozzle 91 into the heat insulating box 50 is foamed in the space between the outer box 60 and the inner box 70 in an increasing order from the front surface side (the opening 50e side) to the back side. Volume side filling. The foamed insulation is then cured.

即,當在使隔熱箱體50的背面部60c朝上的狀態下從各注入口58注入隔熱材料時,隔熱材料由於重力,通過隔熱箱體50內的側面部50b和上面部等,朝向位於最下方的開口部50e流下。That is, when the heat insulating material is injected from each injection port 58 with the back surface 60c of the heat insulating box 50 facing upward, the heat insulating material passes through the side surface 50b and the upper surface of the heat insulating box 50 due to gravity. etc., and flows down toward the lowermost opening 50e.

如上所述,在本實施方式中,在隔熱箱體50的側面部50b的大部分區域,真空隔熱材料51的厚度T1大於發泡隔熱材料的厚度T2。隔熱箱體50的側壁的厚度變薄,從而在側壁內隔熱材料流動的空間變窄,隔熱材料變得難以流動。如果在隔熱箱體50的內部設置真空隔熱材料51,則隔熱材料的流動空間變得更窄。由此,在隔熱箱體50內,注入的隔熱材料發泡後,產生未填充發泡隔熱材料的空隙(void)的可能性變高。As described above, in the present embodiment, the thickness T1 of the vacuum heat insulating material 51 is larger than the thickness T2 of the foam heat insulating material in most areas of the side portion 50b of the heat insulating box 50. The thickness of the side wall of the heat insulating box 50 becomes thinner, so that the space for the heat insulating material to flow becomes narrower in the side wall, making it difficult for the heat insulating material to flow. If the vacuum insulation material 51 is provided inside the insulation box 50, the flow space of the insulation material becomes narrower. Therefore, there is a high possibility that voids not filled with the foamed heat insulating material will be generated in the heat insulating box 50 after the injected heat insulating material is foamed.

例如,當注入液體狀的發泡隔熱材料時,如果與隔熱箱體50內的壁面碰撞,則有時會在該部位局部地開始發泡,之後在隔熱材料從隔熱箱體50的前面側一邊發泡一邊填充時,有可能該局部發泡的部位成為障礙物,填充變得不均勻。此外,在隔熱材料最後到達的主要是隔熱箱體50的背面部50c中,發泡隔熱材料未填充而容易產生空隙。For example, when a liquid foamed heat insulating material is injected, if it collides with the wall surface in the heat insulating box 50 , foaming may begin locally at that location, and then the heat insulating material will be removed from the heat insulating box 50 If the front side of the product is filled while foaming, the partially foamed area may become an obstacle and the filling may become uneven. In addition, the foamed heat insulating material is not filled in the back portion 50 c of the heat insulating box 50 where the heat insulating material reaches last, and voids are easily generated.

(隔熱箱體的背面部的構成) 因此,在本實施方式中,對隔熱箱體50的背面部50c實施了用於促進發泡隔熱材料的流入的研究。以下,對其構成進行說明。 (Construction of the back part of the heat-insulating box) Therefore, in this embodiment, the back surface part 50c of the heat insulation box 50 was studied for promoting the inflow of the foam heat insulation material. The structure will be described below.

圖6示意性地表示隔熱箱體50的冷藏室11部分的水平截面的構成。圖6是圖3的B-B線部分的截面圖。此外,在圖6中,放大示出隔熱箱體50的側面部50b及背面部50c的一部分(由虛線框包圍的部分)。圖7表示從正面觀察內箱70時的外觀構成。圖8表示在圖7所示的內箱70的冷藏室11的背面安裝了管道部件42的狀態。圖9表示隔熱箱體50的背面部50c的內部構成。圖10示意性地示出注入的發泡隔熱材料在隔熱箱體50內擴散的情況。FIG. 6 schematically shows a horizontal cross-sectional structure of the refrigerating compartment 11 portion of the heat insulating box 50 . FIG. 6 is a cross-sectional view of the B-B line in FIG. 3 . In addition, in FIG. 6 , a part of the side portion 50 b and the back portion 50 c of the heat insulating box 50 (a portion surrounded by a dotted line frame) is shown in an enlarged manner. FIG. 7 shows the appearance structure of the inner box 70 when viewed from the front. FIG. 8 shows a state in which the duct member 42 is attached to the back surface of the refrigerating compartment 11 of the inner box 70 shown in FIG. 7 . FIG. 9 shows the internal structure of the back surface portion 50c of the heat insulating box 50. FIG. 10 schematically shows the diffusion of the injected foam insulation material in the insulation box 50 .

在本實施方式的隔熱箱體50中,背面部50c的平均厚度大於側面部50b的平均厚度。在一例中,背面部50c的平均厚度為35mm以上40mm以下。In the heat insulation box 50 of this embodiment, the average thickness of the back surface part 50c is larger than the average thickness of the side surface part 50b. In one example, the average thickness of the back part 50c is 35 mm or more and 40 mm or less.

此外,在隔熱箱體50的背面部50c中,與真空隔熱材料51c相對的區域的發泡隔熱材料52的厚度T8大於側面部50b的與真空隔熱材料51b相對的區域的發泡隔熱材料52的厚度T2。此外,在本實施方式中,配置於隔熱箱體50的背面部50c的真空隔熱材料51c的厚度T7小於配置於側面部50b的真空隔熱材料51b的厚度T1。In addition, in the back part 50c of the heat insulating box 50, the thickness T8 of the foamed heat insulating material 52 in the area facing the vacuum heat insulating material 51c is larger than the thickness T8 of the foamed heat insulating material 52 in the area facing the vacuum heat insulating material 51b of the side part 50b. Thickness T2 of the heat insulating material 52 . Moreover, in this embodiment, the thickness T7 of the vacuum heat insulating material 51c arrange|positioned at the back part 50c of the heat insulation box 50 is smaller than the thickness T1 of the vacuum heat insulating material 51b arrange|positioned at the side part 50b.

在一例中,厚度T7為厚度T1的約一半(例如,5mm以上15mm以下)。此外,在一例中,厚度T8為厚度T2的兩倍以上(例如,15mm以上40mm以下)。In one example, the thickness T7 is about half of the thickness T1 (for example, 5 mm or more and 15 mm or less). In addition, in one example, the thickness T8 is more than twice the thickness T2 (for example, 15 mm or more and 40 mm or less).

進一步,配置於背面部50c的發泡隔熱材料52的厚度T8為配置於背面部50c的真空隔熱材料51c的厚度T7以上。Furthermore, the thickness T8 of the foam heat insulating material 52 arranged on the back surface part 50c is more than the thickness T7 of the vacuum heat insulating material 51c arrange|positioned on the back surface part 50c.

這樣,在隔熱箱體50的背面部50c中,發泡隔熱材料52的厚度的相對比例與側面部50b等相比較高。In this way, in the back surface part 50c of the heat insulation box 50, the relative ratio of the thickness of the foam heat insulation material 52 is high compared with the side surface part 50b etc.

在發泡隔熱材料52的形成過程中,在圖5所示的狀態下進行隔熱材料的注入,所以隔熱箱體50的背面部50c具有與側面部50b等相比隔熱材料流入的時機延遲的傾向。從注入口58注入的發泡隔熱材料首先流入位於正下方的側面部50b後,如圖10中箭頭所示,從開口部50e向上方膨脹並流入。之後,發泡隔熱材料在背面部50c內從靠近側面部50b的一側朝向中央膨脹並流入。注入的發泡隔熱材料隨著時間的經過其粘度增加。因此,在隔熱材料流入背面部50c的時刻,隔熱材料的粘度更高。In the formation process of the foamed heat insulating material 52, the heat insulating material is injected in the state shown in FIG. 5, so the back portion 50c of the heat insulating box 50 has a smaller inflow of the heat insulating material than the side portion 50b and the like. Tendency to delay timing. The foamed heat insulating material injected from the injection port 58 first flows into the side portion 50b directly below, and then expands upward from the opening 50e to flow in as shown by the arrow in FIG. 10 . Thereafter, the foamed heat insulating material expands toward the center from the side close to the side portion 50b and flows into the back portion 50c. The viscosity of injected foam insulation increases over time. Therefore, when the heat insulating material flows into the back portion 50 c, the viscosity of the heat insulating material becomes higher.

在本實施方式中,在隔熱箱體50的背面部50c中,隔熱材料流入的容積(即,真空隔熱材料51的佔有區域以外的區域)比較大,因此即使是粘度更高的隔熱材料,也容易流入空間。In the present embodiment, the volume into which the heat insulating material flows (that is, the area other than the area occupied by the vacuum heat insulating material 51) is relatively large in the back portion 50c of the heat insulating box 50. Therefore, even if the insulation material has a higher viscosity, Hot materials also tend to flow into the space.

因此,根據上述的構成,能夠減少隔熱箱體50的背面部50c的發泡隔熱材料的未填充部位(空隙)的產生。此外,通過使背面部50c中發泡隔熱材料52的比例變大,能夠提高隔熱箱體50的強度。Therefore, according to the above-mentioned structure, it is possible to reduce the occurrence of unfilled portions (voids) of the foamed heat insulating material in the back surface portion 50 c of the heat insulating box 50 . In addition, by increasing the proportion of the foamed heat insulating material 52 in the back portion 50c, the strength of the heat insulating box 50 can be improved.

此外,在內箱70的背面部70c的左右方向的大致中央部設置有上下延伸的凹部48。在本實施方式中,凹部48設置於冷藏室11的箱內,向擴大箱內容積的方向凹陷(參照圖6)。In addition, a recessed portion 48 extending up and down is provided at substantially the center portion in the left-right direction of the back portion 70 c of the inner box 70 . In the present embodiment, the recessed portion 48 is provided in the box of the refrigerating compartment 11 and is recessed in a direction to expand the inner volume of the box (see FIG. 6 ).

與凹部48對應的區域的發泡隔熱材料52的厚度T8b小於背面部50c的其他區域的發泡隔熱材料52的厚度T8。在一例中,厚度T8b為10mm以上30mm以下。The thickness T8b of the foamed heat insulating material 52 in the area corresponding to the recessed portion 48 is smaller than the thickness T8 of the foamed heat insulating material 52 in other areas of the back portion 50c. In one example, the thickness T8b is 10 mm or more and 30 mm or less.

設置有凹部48的部分相當於注入的發泡隔熱材料的最終到達區域。因此,通過設置凹部48而使背面部50c內的空間局部變窄,能夠減少發泡隔熱材料的填充量,能夠減小未填充部位(空隙)的產生比例。The portion where the recessed portion 48 is provided corresponds to the final arrival area of the injected foam insulation material. Therefore, by providing the recessed portion 48 to locally narrow the space in the back portion 50c, the filling amount of the foamed heat insulating material can be reduced, and the occurrence ratio of unfilled portions (voids) can be reduced.

並且,優選在凹部48也確保發泡隔熱材料流動的程度的厚度。因此,厚度T8b優選比厚度T2大,例如優選為15mm以上。Furthermore, it is preferable that the thickness of the recessed portion 48 is sufficient to allow the foamed heat insulating material to flow. Therefore, the thickness T8b is preferably larger than the thickness T2, and is preferably 15 mm or more, for example.

優選在凹部48設有至少一個排氣孔49。向隔熱箱體50內注入隔熱材料,在內部隔熱材料一邊發泡一邊膨脹時,能夠通過排氣孔49排出存在於隔熱箱體50內的空氣。由此,能夠抑制隔熱箱體50內的壓力上升,促進發泡隔熱材料向凹部48的流入。並且,在本實施方式中,在凹部48以外的內箱70的背面部70c也設置有排氣孔49(參照圖7等)。在圖7中,為了便於理解排氣孔的配置位置,以將在內箱70的背面部70c形成的排氣孔49的一部分放大的狀態示出。It is preferable that at least one exhaust hole 49 is provided in the recess 48 . When the heat insulating material is injected into the heat insulating box 50 and the internal heat insulating material foams and expands, the air existing in the heat insulating box 50 can be discharged through the exhaust hole 49 . Thereby, the pressure increase in the heat insulation box 50 can be suppressed, and the inflow of the foam heat insulation material into the recessed part 48 can be promoted. Moreover, in this embodiment, the exhaust hole 49 is also provided in the back surface part 70c of the inner box 70 other than the recessed part 48 (refer FIG. 7 etc.). In FIG. 7 , in order to facilitate understanding of the arrangement position of the exhaust holes, a part of the exhaust holes 49 formed on the back surface 70 c of the inner box 70 is shown in an enlarged state.

此外,在內箱70的背面部70c的箱內側的壁上,以覆蓋凹部48的方式配置有管道部件(管道形成部件)42(參照圖8)。通過在凹部48配置管道部件42,能夠在凹部確保冷氣管道的區域。由此,能夠擴大箱內容積。此外,能夠將形成於凹部48的排氣孔49用管道部件42覆蓋隱藏。In addition, a duct member (duct forming member) 42 is arranged on the inner wall of the back portion 70 c of the inner box 70 so as to cover the recessed portion 48 (see FIG. 8 ). By disposing the duct member 42 in the recessed portion 48, a cold air duct area can be secured in the recessed portion. Thereby, the volume inside the box can be enlarged. In addition, the exhaust hole 49 formed in the recessed portion 48 can be covered and hidden with the duct member 42 .

管道部件42使用螺釘等固定於內箱70的背面部70c。在內箱70的凹部48設有供螺釘插入的螺釘固定部42A。在本實施方式中,在該螺釘固定部42A的周圍形成有較多的排氣孔49A(參照圖7等)。由此,能夠使發泡隔熱材料優先流入螺釘固定部42A,能夠提高螺釘固定部42A的強度。The pipe member 42 is fixed to the back surface 70c of the inner box 70 using screws or the like. The recessed portion 48 of the inner box 70 is provided with a screw fixing portion 42A into which screws are inserted. In this embodiment, a large number of exhaust holes 49A are formed around the screw fixing portion 42A (see FIG. 7 and the like). This allows the foamed heat insulating material to flow preferentially into the screw-fixed portion 42A, thereby improving the strength of the screw-fixed portion 42A.

並且,在內箱70上形成排氣孔49時,優選從箱內側向隔熱箱體的內部側進行穿孔。由此能夠成為:雖然空氣從隔熱箱體50的內部通過排氣孔49排出,但隔熱箱體50內的發泡隔熱材料難以洩漏的結構。Furthermore, when forming the exhaust hole 49 in the inner box 70, it is preferable to drill it from the inside of the box toward the inside of the heat insulating box. This can provide a structure in which the foamed heat insulating material in the heat insulating box 50 is unlikely to leak even though the air is discharged from the inside of the heat insulating box 50 through the exhaust hole 49 .

在隔熱箱體50的背面部50c內的內箱70側,在左右方向以及上下方向的大致中央部設置有發泡苯乙烯(隔熱結構體)69(參照圖9)。發泡苯乙烯69安裝在注入發泡隔熱材料之前的隔熱箱體50的內部。A foamed styrene (heat-insulating structure) 69 is provided on the inner box 70 side in the back portion 50 c of the heat-insulating box 50 at substantially the center portion in the left-right direction and the up-down direction (see FIG. 9 ). The foamed styrene 69 is installed inside the heat insulating box 50 before the foamed heat insulating material is injected.

隔熱箱體50的背面部50c內的左右方向和上下方向的大致中央部相當於從各注入口58注入的發泡隔熱材料的最終到達區域(參照圖10)。該區域與其他區域相比,更不易填充發泡隔熱材料,容易成為未填充部位(空隙)。因此,例如,通過將長方體形狀的發泡苯乙烯69等隔熱結構體預先配置於該區域,能夠抑制空隙的產生。The substantially central portion in the left-right direction and the up-down direction in the back portion 50c of the heat insulating box 50 corresponds to the final arrival area of the foamed heat insulating material injected from each injection port 58 (see FIG. 10 ). Compared with other areas, this area is less likely to be filled with foam insulation material and is more likely to become an unfilled area (void). Therefore, for example, by arranging a heat insulating structure such as a rectangular parallelepiped-shaped foamed styrene 69 in this area in advance, the occurrence of voids can be suppressed.

以上,說明了隔熱箱體50的上段部(即,冷藏室11側)的背面部50c的具體構成。省略隔熱箱體50的中段部(即蔬菜室12側)和下段部(即冷凍室13側)的背面部50c的詳細的構成的說明,但能夠適用與上段部相同的構成。即,在隔熱箱體50的中段部和下段部的背面部50c中,真空隔熱材料51存在的面積的一半以上的發泡隔熱材料52的厚度T8也比側面部50b的發泡隔熱材料52的厚度T2大。As above, the specific structure of the back surface part 50c of the upper stage part (ie, the refrigeration compartment 11 side) of the heat insulation box 50 was demonstrated. Detailed description of the back portion 50c of the middle portion (ie, the vegetable compartment 12 side) and the lower portion (ie, the freezing compartment 13 side) of the heat insulating box 50 is omitted, but the same structure as the upper portion can be applied. That is, in the back part 50c of the middle section and the lower section of the heat insulating box 50, the thickness T8 of the foamed heat insulating material 52 which accounts for more than half of the area where the vacuum heat insulating material 51 exists is also thicker than the foamed insulation of the side part 50b. The thickness T2 of the thermal material 52 is large.

(第一實施方式的總結) 如上所述,本實施方式的冰箱1具備隔熱箱體50。隔熱箱體50具有內箱70和外箱60。在隔熱箱體50內的外箱側配置有真空隔熱材料51。在隔熱箱體50的內部填充有發泡隔熱材料52。在隔熱箱體50的背面設置有注入發泡隔熱材料的材料的至少一個注入口58。 (Summary of the first embodiment) As described above, the refrigerator 1 of this embodiment includes the heat insulating box 50 . The heat insulation box 50 has an inner box 70 and an outer box 60 . A vacuum heat insulating material 51 is arranged on the outer box side in the heat insulating box 50 . The inside of the heat insulating box 50 is filled with a foamed heat insulating material 52 . At least one injection port 58 for injecting foam insulation material is provided on the back surface of the heat insulation box 50 .

在隔熱箱體50的側面部50b中,與真空隔熱材料51相對的發泡隔熱材料52的厚度T2小於真空隔熱材料51的厚度T1的區域比真空隔熱材料51的厚度T1以上的區域多。此外,在隔熱箱體50的背面部50c中,與真空隔熱材料51相對的區域的發泡隔熱材料的厚度T8大於隔熱箱體50的側面部50b的與真空隔熱材料51相對的區域的發泡隔熱材料的厚度T2。In the side portion 50b of the heat insulating box 50, a region where the thickness T2 of the foamed heat insulating material 52 facing the vacuum heat insulating material 51 is smaller than the thickness T1 of the vacuum heat insulating material 51 is greater than or equal to the thickness T1 of the vacuum heat insulating material 51. There are many areas. In addition, in the back portion 50c of the heat insulating box 50, the thickness T8 of the foamed heat insulating material in the area facing the vacuum heat insulating material 51 is larger than that of the side portion 50b of the heat insulating box 50 facing the vacuum heat insulating material 51. The thickness of the foam insulation material in the area is T2.

根據上述的構成,在隔熱箱體50的背面部50c中,隔熱材料流入的容積(即,真空隔熱材料51的佔有區域以外的區域)比較大,因此即使是粘度更高的隔熱材料也容易流入空間。因此,能夠減少隔熱箱體50的背面部50c的發泡隔熱材料的未填充部位(空隙)的產生。According to the above configuration, in the back portion 50c of the heat insulating box 50, the volume into which the heat insulating material flows (that is, the area other than the area occupied by the vacuum heat insulating material 51) is relatively large. Therefore, even if the heat insulating material has a higher viscosity, Materials also flow easily into the space. Therefore, the occurrence of unfilled portions (voids) of the foamed heat insulating material in the back surface portion 50 c of the heat insulating box 50 can be reduced.

如上所述,根據本實施方式的隔熱箱體50,能夠設為在注入發泡隔熱材料時能夠使發泡隔熱材料在隔熱箱體內更容易流動的構成。由此,能夠實現隔熱箱體50的側面部的薄型化,並且能夠降低在隔熱箱體50的內部產生未填充發泡隔熱材料的部位的可能性。As described above, according to the heat insulating box 50 of this embodiment, when the foamed heat insulating material is injected, the foamed heat insulating material can be made to flow more easily in the heat insulating box. Thereby, the side surface part of the heat insulation box 50 can be made thin, and the possibility that a site|part which is not filled with the foam heat insulation material may arise in the heat insulation box 50 can be reduced.

<第二實施方式> 接下來,將說明本發明的第二實施方式。以下,以與第一實施方式不同的構成為中心進行說明。 <Second Embodiment> Next, a second embodiment of the present invention will be described. The following description will focus on configurations different from those of the first embodiment.

在第一實施方式中,說明了隔熱箱體50的上段部(即,冷藏室11側)的背面部50c的具體構成。在本實施方式中,對隔熱箱體50的中段部(即蔬菜室12側)和下段部(即冷凍室13側)的背面部50c的具體構成進行說明。In the first embodiment, the specific structure of the back surface portion 50c of the upper portion (that is, the refrigerating compartment 11 side) of the heat insulating box 50 has been described. In this embodiment, the specific structure of the back surface part 50c of the middle part (that is, the vegetable compartment 12 side) and the lower part (that is, the freezing chamber 13 side) of the heat insulation box 50 is demonstrated.

與隔熱箱體50的上段部相同,在隔熱箱體50的中段部和下段部的背面部50c中,與真空隔熱材料51c相對的區域的發泡隔熱材料52的厚度T8也大於側面部50b的與真空隔熱材料51b相對的區域的發泡隔熱材料52的厚度T2。Similar to the upper section of the heat insulating box 50, in the back portion 50c of the middle section and the lower section of the heat insulating box 50, the thickness T8 of the foamed heat insulating material 52 in the area opposite to the vacuum heat insulating material 51c is also greater than The thickness T2 of the foamed heat insulating material 52 in the area facing the vacuum heat insulating material 51b of the side portion 50b.

在一例中,背面部50c的中段部的發泡隔熱材料52的厚度T8例如為15mm以上30mm以下。位於中段部的蔬菜室12內的溫度與冷藏室11相比有稍高的傾向,因此背面部50c的中段部的發泡隔熱材料52的厚度T8也可以小於上段部的發泡隔熱材料52的厚度。由此,能夠增大蔬菜室12的箱內容積。In one example, the thickness T8 of the foam heat insulating material 52 in the middle portion of the back portion 50c is, for example, 15 mm or more and 30 mm or less. The temperature in the vegetable compartment 12 located in the middle portion tends to be slightly higher than that in the refrigerator compartment 11. Therefore, the thickness T8 of the foam heat insulating material 52 in the middle portion of the back portion 50c may be smaller than the foam heat insulating material in the upper portion. 52 thickness. Thereby, the inner volume of the vegetable compartment 12 can be increased.

在一例中,背面部50c的下段部的發泡隔熱材料52的厚度T8例如為15mm以上45mm以下。位於下段部的冷凍室13內的溫度與冷藏室11相比較低,因此背面部50c的下段部的發泡隔熱材料52的厚度T8優選大於上段部的發泡隔熱材料52的厚度。In one example, the thickness T8 of the foam heat insulating material 52 in the lower portion of the back surface portion 50c is, for example, 15 mm or more and 45 mm or less. The temperature in the freezer compartment 13 located in the lower section is lower than that in the refrigerator compartment 11, so the thickness T8 of the foam insulation material 52 in the lower section of the back portion 50c is preferably greater than the thickness T8 of the foam insulation material 52 in the upper section.

(總結) 本發明的一方面涉及的隔熱箱體(例如隔熱箱體50)具有內箱(例如內箱70)和外箱(例如外箱60)。該隔熱箱體包括:配置於所述隔熱箱體內的真空隔熱材料(例如真空隔熱材料51);填充於所述隔熱箱體的內部的發泡隔熱材料(例如發泡隔熱材料52);以及配置於所述隔熱箱體的背面並注入所述發泡隔熱材料的材料的至少一個注入口(例如注入口58)。在所述隔熱箱體的側面部(例如側面部50b),與所述真空隔熱材料相對的發泡隔熱材料的厚度(例如厚度T2)小於所述真空隔熱材料的厚度(例如厚度T1)的區域比所述真空隔熱材料的厚度(例如厚度T1)以上的區域多,在所述隔熱箱體的背面部(例如背面部50c)中,與所述真空隔熱材料相對的區域的所述發泡隔熱材料的厚度(例如厚度T8)大於所述隔熱箱體的側面部的與所述真空隔熱材料相對的區域的所述發泡隔熱材料的厚度(例如厚度T2)。 (Summary) The heat-insulating box (eg, the heat-insulating box 50 ) related to one aspect of the present invention has an inner box (eg, the inner box 70 ) and an outer box (eg, the outer box 60 ). The heat-insulating box includes: a vacuum heat-insulating material (eg, vacuum heat-insulating material 51) disposed in the heat-insulating box; and a foamed heat-insulating material (eg, foam insulation) filled inside the heat-insulating box. Thermal material 52); and at least one injection port (for example, injection port 58) disposed on the back of the thermal insulation box and injecting the foam thermal insulation material. On the side portion of the heat insulating box (for example, the side portion 50b), the thickness of the foamed heat insulating material opposite to the vacuum heat insulating material (eg, thickness T2) is smaller than the thickness of the vacuum heat insulating material (eg, thickness T2). The area T1) is larger than the area above the thickness of the vacuum heat insulating material (for example, thickness T1). In the back part of the heat insulating box (for example, the back part 50c), the area opposite to the vacuum heat insulating material is The thickness of the foamed heat insulating material in the area (for example, thickness T8) is greater than the thickness of the foamed heat insulating material in the area of the side portion of the heat insulating box opposite to the vacuum heat insulating material (for example, thickness T8). T2).

上述的本發明的一方面涉及的隔熱箱體(例如,隔熱箱體50)中,所述注入口(例如,注入口58)配置於所述背面的左右方向的端部,也可以在所述內箱(例如,內箱70)的背面,在左右方向的大致中央部設有上下延伸的凹部(例如,凹部48)。In the above-mentioned heat insulating box (for example, the heat insulating box 50) according to one aspect of the present invention, the injection port (for example, the injection port 58) is arranged at the end of the back surface in the left-right direction. The back surface of the inner box (for example, the inner box 70) is provided with a recessed portion (for example, the recessed portion 48) extending up and down at a substantially central portion in the left-right direction.

在上述本發明的一方面涉及的隔熱箱體(例如,隔熱箱體50)中,也可以在所述凹部(例如,凹部48)設置至少一個孔(例如,排氣孔49)。In the heat-insulating box (for example, the heat-insulating box 50) which concerns on one aspect of this invention mentioned above, at least one hole (for example, the exhaust hole 49) may be provided in the recessed part (for example, the recessed part 48).

在上述本發明的一方面涉及的隔熱箱體(例如隔熱箱體50)中,也可以在所述內箱(例如內箱70)的背面的箱內側的壁設置以覆蓋所述凹部(例如凹部48)的方式配置的管道形成部件(例如管道部件42)。In the heat-insulating box (for example, the heat-insulating box 50) according to one aspect of the present invention, a wall on the inner side of the back surface of the inner box (for example, the inner box 70) may be provided to cover the recessed portion ( A duct-forming member (eg, duct member 42) arranged in a manner such as a recess 48).

在上述本發明的一方面涉及的隔熱箱體(例如,隔熱箱體50)中,也可以在所述隔熱箱體的背面部(例如,背面部50c)內的所述內箱(例如,內箱70)側,在左右方向以及上下方向的大致中央部設置隔熱結構體(例如,發泡苯乙烯69)。In the above-described heat insulating box (for example, the heat insulating box 50) according to one aspect of the present invention, the inner box (for example, the back surface 50c) in the back surface of the heat insulating box may be For example, on the inner box 70) side, a heat insulating structure (for example, foamed styrene 69) is provided at substantially the center portion in the left-right direction and the up-down direction.

此外,本發明的另一方面涉及冰箱(例如冰箱1)。該冰箱包括本發明的一方面涉及的隔熱箱體(例如隔熱箱體50)。Furthermore, another aspect of the invention relates to a refrigerator (eg refrigerator 1). This refrigerator includes the heat-insulating box (for example, the heat-insulating box 50) related to one aspect of the present invention.

應該認為本次公開的實施方式在所有方面都是例示而非限制性的。本發明的範圍通過發明申請專利範圍來表示,並非由上述的說明來表示,並且包含與發明申請專利範圍等同的意思以及範圍內的所有變更。此外,將本說明書中說明的不同實施方式的構成相互組合而得到的構成也包含在本發明的範疇中。It should be understood that the embodiments disclosed this time are illustrative and not restrictive in every respect. The scope of the present invention is indicated by the claims for invention and not by the above description, and includes all changes within the scope and equivalent meanings to the claims for invention. In addition, a structure obtained by combining the structures of different embodiments described in this specification is also included in the scope of the present invention.

1:冰箱 11:冷藏室 11a:冷藏室門 12:蔬菜室 12a:蔬菜室門 13:冷凍室 13a:冷凍室門 31:壓縮機 32:冷卻器 33:冷卻風扇 41:冷氣管道 42:管道部件(管道形成部件) 42A:螺釘固定部 48:凹部 49、49A:排氣孔(孔) 50:隔熱箱體 50b:(隔熱箱體的)側面部 50c:(隔熱箱體的)背面部 50e:開口部 51、51b、51c:真空隔熱材料 52:發泡隔熱材料 54:第一分隔部 55:第二分隔部 58:注入口 60:外箱 60a:上面部 60b:側面部 60c:背面部 62:底板 69:發泡苯乙烯(隔熱結構體) 70:內箱 70b:(內箱的)側面部 70c:(內箱的)背面部 70d:底面部 91:注入噴嘴 T1:隔熱箱體的側面部的真空隔熱材料的厚度 T2:隔熱箱體的側面部的發泡隔熱材料的厚度 T7:隔熱箱體的背面部的真空隔熱材料的厚度 T8、T8b:隔熱箱體的背面部的發泡隔熱材料的厚度 1: Refrigerator 11: Refrigerator 11a: Refrigerator door 12:Vegetable room 12a:Vegetable room door 13: Freezer 13a: Freezer door 31:Compressor 32:Cooler 33: Cooling fan 41:Air conditioning duct 42: Pipe parts (pipe forming parts) 42A: Screw fixing part 48: concave part 49, 49A: Vent (hole) 50:Thermal insulation box 50b: Side part (of the heat-insulating box) 50c: Back part (of the insulated box) 50e:Opening part 51, 51b, 51c: Vacuum insulation materials 52: Foam insulation material 54: First partition 55:Second partition 58:Injection port 60:Outer box 60a: Upper face 60b: Side face 60c: back part 62: Base plate 69: Foamed styrene (heat-insulating structure) 70:Inner box 70b: Side part (of the inner box) 70c: Back part (of the inner box) 70d: Bottom face 91:Injection nozzle T1: Thickness of vacuum insulation material on the side of the insulation box T2: The thickness of the foam insulation material on the side of the insulation box T7: Thickness of vacuum insulation material on the back of the insulation box T8, T8b: Thickness of foam insulation material on the back of the insulation box

圖1是表示本發明的一實施方式的冰箱的內部構成的截面示意圖。 圖2是表示第一實施方式的冰箱隔熱箱體的箱內構成的立體圖。 圖3是圖2所示的隔熱箱體的側視圖。 圖4是表示圖3所示的隔熱箱體的A-A線部分的構成的截面圖和局部截面圖。 圖5是表示向圖2所示的隔熱箱體注入隔熱材料的情形的立體圖。 圖6是表示圖3所示的隔熱箱體的B-B線部分的構成的水平截面圖。 圖7是表示形成圖2所示的隔熱箱體的內箱的構成的主視圖。 圖8是表示在圖6所示的內箱安裝有管道部件的狀態的主視圖。 圖9是表示從圖5所示的隔熱箱體拆下外箱的背面部的狀態的立體圖。 圖10是表示隔熱箱體內的發泡隔熱材料的流動的示意圖。 FIG. 1 is a schematic cross-sectional view showing the internal structure of a refrigerator according to an embodiment of the present invention. FIG. 2 is a perspective view showing the interior structure of the refrigerator heat-insulating box according to the first embodiment. Figure 3 is a side view of the heat insulation box shown in Figure 2 . 4 is a cross-sectional view and a partial cross-sectional view showing the structure of the A-A line portion of the heat insulating box shown in FIG. 3 . FIG. 5 is a perspective view showing a state of injecting a heat insulating material into the heat insulating box shown in FIG. 2 . FIG. 6 is a horizontal cross-sectional view showing the structure of the B-B line portion of the heat insulating box shown in FIG. 3 . FIG. 7 is a front view showing the structure of the inner box forming the heat insulating box shown in FIG. 2 . FIG. 8 is a front view showing a state in which piping components are attached to the inner box shown in FIG. 6 . FIG. 9 is a perspective view showing a state in which the back surface of the outer box is removed from the heat insulating box shown in FIG. 5 . FIG. 10 is a schematic diagram showing the flow of the foamed heat insulating material in the heat insulating box.

11:冷藏室 11: Refrigerator

48:凹部 48: concave part

50:隔熱箱體 50:Thermal insulation box

50b:(隔熱箱體的)側面部 50b: Side part (of the heat-insulating box)

50c:(隔熱箱體的)背面部 50c: Back part (of the heat-insulating box)

50e:開口部 50e:Opening part

51b、51c:真空隔熱材料 51b, 51c: Vacuum insulation materials

52:發泡隔熱材料 52: Foam insulation material

70b:(內箱的)側面部 70b: Side part (of the inner box)

70c:(內箱的)背面部 70c: Back part (of the inner box)

T1:隔熱箱體的側面部的真空隔熱材料的厚度 T1: Thickness of vacuum insulation material on the side of the insulation box

T2:隔熱箱體的側面部的發泡隔熱材料的厚度 T2: The thickness of the foam insulation material on the side of the insulation box

T7:隔熱箱體的背面部的真空隔熱材料的厚度 T7: Thickness of vacuum insulation material on the back of the insulation box

T8、T8b:隔熱箱體的背面部的發泡隔熱材料的厚度 T8, T8b: Thickness of foam insulation material on the back of the insulation box

Claims (6)

一種具有內箱和外箱的隔熱箱體,其中,具備: 真空隔熱材料,其配置於所述隔熱箱體內; 發泡隔熱材料,其填充於所述隔熱箱體的內部;以及 至少一個注入口,其配置於所述隔熱箱體的背面,用於注入所述發泡隔熱材料的材料, 在所述隔熱箱體的側面部中,與所述真空隔熱材料相對的發泡隔熱材料的厚度小於所述真空隔熱材料的厚度的區域比所述真空隔熱材料的厚度以上的區域多, 在所述隔熱箱體的背面部中,與所述真空隔熱材料相對的區域的所述發泡隔熱材料的厚度大於所述隔熱箱體的側面部的與所述真空隔熱材料相對的區域的所述發泡隔熱材料的厚度。 A heat-insulating box with an inner box and an outer box, which has: Vacuum heat insulation material, which is arranged in the heat insulation box; Foam thermal insulation material, which is filled inside the thermal insulation box; and At least one injection port, which is arranged on the back of the heat insulation box and is used to inject the foam heat insulation material, In the side portion of the heat insulating box, a region where the thickness of the foamed heat insulating material facing the vacuum heat insulating material is less than the thickness of the vacuum heat insulating material is larger than the thickness of the vacuum heat insulating material. There are many areas, In the back part of the heat insulating box, the thickness of the foamed heat insulating material in the area opposite to the vacuum heat insulating material is greater than the thickness of the side part of the heat insulating box opposite to the vacuum heat insulating material. The thickness of the foam insulation material in the opposite area. 根據請求項1所述的隔熱箱體,其中, 所述注入口配置於所述背面的左右方向的端部, 所述內箱的背面中,在左右方向的中央部設置有上下延伸的凹部。 The thermal insulation box according to claim 1, wherein, The injection port is arranged at a left-right end of the back surface, The back surface of the inner box is provided with a recessed portion extending up and down in the center portion in the left-right direction. 根據請求項2所述的隔熱箱體,其中, 所述凹部上設置有至少一個孔。 The thermal insulation box according to claim 2, wherein, At least one hole is provided in the recess. 根據請求項2或3所述的隔熱箱體,其中, 在所述內箱的背面的箱內側的壁上設置有以覆蓋所述凹部的方式配置的管道形成部件。 The heat-insulating box according to claim 2 or 3, wherein, A duct forming member is provided on the inner wall of the back surface of the inner box so as to cover the recessed portion. 根據請求項1至4中任一項所述的隔熱箱體,其中, 在所述隔熱箱體的背面部內的所述內箱側,在左右方向以及上下方向的中央部設置有隔熱結構體。 The thermal insulation box according to any one of claims 1 to 4, wherein, A heat insulating structure is provided at the center portion in the left-right direction and the up-down direction on the inner box side in the back portion of the heat insulating box. 一種冰箱,其中, 具備如請求項1至5中任何一項所述的隔熱箱體。 A refrigerator in which, Having a heat-insulating box as described in any one of claims 1 to 5.
TW112105653A 2022-02-17 2023-02-16 (無) TW202334594A (en)

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JP2022022821A JP2023119777A (en) 2022-02-17 2022-02-17 Heat insulation box and refrigerator
JP2022-022821 2022-02-17

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TW202334594A true TW202334594A (en) 2023-09-01

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