JP2020106215A - Refrigerator and manufacturing method of the same - Google Patents

Refrigerator and manufacturing method of the same Download PDF

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JP2020106215A
JP2020106215A JP2018245420A JP2018245420A JP2020106215A JP 2020106215 A JP2020106215 A JP 2020106215A JP 2018245420 A JP2018245420 A JP 2018245420A JP 2018245420 A JP2018245420 A JP 2018245420A JP 2020106215 A JP2020106215 A JP 2020106215A
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heat insulating
insulating material
box
vacuum heat
inner box
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JP7287643B2 (en
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青木　均史
Hitoshi Aoki
均史 青木
山川　貴志
Takashi Yamakawa
貴志 山川
俊之 土田
Toshiyuki Tsuchida
俊之 土田
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Aqua KK
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Aqua KK
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Priority to PCT/CN2019/123957 priority patent/WO2020134996A1/en
Priority to CN201980092983.7A priority patent/CN113614474B/en
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Priority to JP2023037349A priority patent/JP2023072000A/en
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    • 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
    • F25D23/06—Walls
    • 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
    • F25D23/08—Parts formed wholly or mainly of plastics materials

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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)

Abstract

To provide a refrigerator which includes a vacuum heat insulation material and achieves high heat insulation efficiency, and to provide a manufacturing method of the refrigerator.SOLUTION: A refrigerator 10 of the invention has, as a heat insulation material incorporated into a heat insulation box body, a side surface vacuum heat insulation material 22 disposed near an outer surface of an inner box side surface plate 162 and a foam heat insulation material 23 foamed and filling a space between an inner box 16 and an outer box 15. Further, a spacer 30 is attached to one end side of the side surface vacuum heat insulation material 22 and disposed between the side surface vacuum heat insulation material 22 and an outer box side surface plate 152. The refrigerator is formed in the configuration to allow the side surface vacuum heat insulation material 22 to thermally insulate a storage room from the outside in a preferable manner and achieve further energy saving of the refrigerator 10.SELECTED DRAWING: Figure 4

Description

本発明は、冷蔵庫およびその製造方法に関し、特に、断熱材として真空断熱材を備えた冷蔵庫およびその製造方法に関する。 The present invention relates to a refrigerator and a manufacturing method thereof, and more particularly to a refrigerator provided with a vacuum heat insulating material as a heat insulating material and a manufacturing method thereof.

一般的な冷蔵庫では、断熱箱体の内部に貯蔵室を形成し、この貯蔵室の前方開口を断熱扉で開閉可能に閉鎖している。断熱箱体は、鋼板から成る外箱と、外箱の内側に配置される合成樹脂板から成る内箱と、外箱と内箱との間に充填された断熱材とから成る。 In a general refrigerator, a storage chamber is formed inside a heat insulating box, and a front opening of the storage chamber is closed by a heat insulating door so that the storage chamber can be opened and closed. The heat insulating box body includes an outer box made of a steel plate, an inner box made of a synthetic resin plate arranged inside the outer box, and a heat insulating material filled between the outer box and the inner box.

冷蔵庫の断熱箱体に充填される断熱材としては、一般的に発泡ウレタンが採用される。しかしながら、冷蔵庫の更なる省エネルギ化に対処するためには発泡ウレタンよりも断熱性が高い断熱材が好ましい。 Generally, urethane foam is used as a heat insulating material filled in a heat insulating box of a refrigerator. However, in order to cope with further energy saving of the refrigerator, a heat insulating material having a higher heat insulating property than urethane foam is preferable.

そこで、断熱箱体に内蔵される断熱材として真空断熱材が採用される場合がある。真空断熱材はガラスウール等の繊維状無機材料を真空包装したものであり、発泡ウレタンの十数倍以上の断熱効果を有する。係る構成とすることで、真空断熱材により貯蔵室と外部とを良好に断熱でき、冷蔵庫の冷却運転に要するエネルギを低減することができる。 Therefore, a vacuum heat insulating material may be used as the heat insulating material built in the heat insulating box. The vacuum heat insulating material is obtained by vacuum-packing a fibrous inorganic material such as glass wool, and has a heat insulating effect more than ten times that of urethane foam. With such a configuration, the storage chamber and the outside can be well insulated by the vacuum heat insulating material, and the energy required for the cooling operation of the refrigerator can be reduced.

図１０を参照して、真空断熱材が採用された冷蔵庫１００の構成を説明する。図１０（Ａ）は冷蔵庫１００を示す水平断面図であり、図１０（Ｂ）は冷蔵庫１００を示す斜視図である。 With reference to FIG. 10, the structure of the refrigerator 100 using the vacuum heat insulating material will be described. 10A is a horizontal sectional view showing the refrigerator 100, and FIG. 10B is a perspective view showing the refrigerator 100.

図１０（Ａ）および図１０（Ｂ）を参照して、冷蔵庫１００は、外箱１０１および内箱１０２を有し、内箱１０２の内部に貯蔵室１０７が形成されている。また、外箱１０１と内箱１０２との間には、断熱材として発泡断熱材１０３および真空断熱材１０４が配置されている。真空断熱材１０４は、外箱１０１の内面に貼着されている。また、外箱１０１の内面には、冷媒が流通するパイプ１０６が配設されている。よって、真空断熱材１０４の外面には、パイプ１０６に則して溝１０５が形成されている。図１０（Ａ）では、真空断熱材１０４に溝１０５が４個形成された場合を示し、図１０（Ｂ）では溝１０５を２つ形成した場合を示している。 With reference to FIG. 10(A) and FIG. 10(B), the refrigerator 100 has an outer box 101 and an inner box 102, and a storage chamber 107 is formed inside the inner box 102. Further, a foamed heat insulating material 103 and a vacuum heat insulating material 104 are arranged as heat insulating materials between the outer case 101 and the inner case 102. The vacuum heat insulating material 104 is attached to the inner surface of the outer box 101. Further, a pipe 106 through which a refrigerant flows is arranged on the inner surface of the outer box 101. Therefore, the groove 105 is formed on the outer surface of the vacuum heat insulating material 104 in accordance with the pipe 106. 10A shows a case where four grooves 105 are formed in the vacuum heat insulating material 104, and FIG. 10B shows a case where two grooves 105 are formed.

特許第４１１１０９６号公報Japanese Patent No. 4111096

しかしながら、上記した冷蔵庫では、冷蔵庫の断熱の観点からも、冷蔵庫の製造方法の観点からも改善の余地があった。 However, in the above-mentioned refrigerator, there is room for improvement both from the viewpoint of heat insulation of the refrigerator and from the viewpoint of the method of manufacturing the refrigerator.

具体的には、特許文献１に記載された冷蔵庫では、真空断熱材は外箱側に配置される。よって、庫内に熱侵入する伝熱面である内箱面より表面積が大きいために、四隅などの真空断熱材が無い部分の断熱効果を十分に発揮することができない課題があった。 Specifically, in the refrigerator described in Patent Document 1, the vacuum heat insulating material is arranged on the outer box side. Therefore, since the surface area is larger than that of the inner box surface which is the heat transfer surface for the heat to enter the inside of the refrigerator, there is a problem that the heat insulating effect of the portions without the vacuum heat insulating material such as the four corners cannot be sufficiently exhibited.

また、製造工程に於いて、接着剤を用いて外箱１０１の内面に真空断熱材１０４を貼着する必要があるが、接着工程を行うことで、冷蔵庫１０の製造コストが上昇する恐れがある。 Further, in the manufacturing process, it is necessary to adhere the vacuum heat insulating material 104 to the inner surface of the outer box 101 by using an adhesive, but the manufacturing process of the refrigerator 10 may increase by performing the bonding process. ..

更に、外箱１０１の内面には放熱するためのパイプ１０６を設置するため、真空断熱材１０４にパイプ１０６を設置するための溝１０５を形成する必要があり、これによって真空断熱材１０４の加工が必要になり、冷蔵庫１０の製造コストが高くなる恐れがある。また、真空断熱材１０４に形成される溝１０５は、溝１０５どうしの幅を狭くすることが困難なため、パイプ１０６のピッチを狭めることができない。 Further, since the pipe 106 for dissipating heat is installed on the inner surface of the outer box 101, it is necessary to form the groove 105 for installing the pipe 106 in the vacuum heat insulating material 104, which allows the vacuum heat insulating material 104 to be processed. It becomes necessary and the manufacturing cost of the refrigerator 10 may increase. Further, it is difficult to narrow the width of the grooves 105 formed in the vacuum heat insulating material 104, so that the pitch of the pipes 106 cannot be narrowed.

更にまた、発泡断熱材１０３を発泡充填する工程に於いて、外箱１０１に凹凸が発生することを防止するために、溝１０５にエア抜きパイプを配置する必要がある。このことが、製造工程の複雑化を招き、製造コストの上昇に繋がっていた。 Furthermore, in the step of foam-filling the foamed heat insulating material 103, it is necessary to arrange an air bleeding pipe in the groove 105 in order to prevent unevenness from occurring in the outer box 101. This has led to a complicated manufacturing process and an increase in manufacturing cost.

また、真空断熱材を外箱等に取り付けた後に、外箱と内箱とを組み合わせると、組付け作業中に真空断熱材の包装が破けてしまう恐れがある。更に、真空断熱材を外箱または内箱に貼り付けようとすれば、そのための接着剤塗布装置や真空断熱材貼り付け装置等が必要となり、製造方法が複雑になり、更に、製造コストが上昇してしまう恐れがあった。 Further, if the outer box and the inner box are combined after the vacuum heat insulating material is attached to the outer box or the like, the vacuum heat insulating material package may be broken during the assembling work. Furthermore, if the vacuum heat insulating material is to be attached to the outer box or the inner box, an adhesive coating device or a vacuum heat insulating material attaching device for that purpose is required, which complicates the manufacturing method and further increases the manufacturing cost. I was afraid to do it.

本発明は、上記の事情に鑑みてなされたものであり、その目的とするところは、真空断熱材を備えた断熱効率が高い冷蔵庫および当該冷蔵庫を容易に製造することができる製造方法を提供することにある。 The present invention has been made in view of the above circumstances, and an object thereof is to provide a refrigerator including a vacuum heat insulating material with high heat insulation efficiency and a manufacturing method capable of easily manufacturing the refrigerator. Especially.

本発明の冷蔵庫は、内部に貯蔵室が形成される断熱箱体と、前記貯蔵室の開口を閉鎖する断熱扉と、を備え、前記断熱箱体は、前記断熱箱体の外面を形成する外箱と、前記外箱の内部に配設された内箱と、前記外箱と前記内箱との間に配置された断熱材と、を有し、前記外箱は、前記断熱箱体の幅方向に沿って伸びる外箱後面板と、前記断熱箱体の奥行方向に沿って伸びる外箱側面板と、を有し、前記内箱は、前記断熱箱体の幅方向に沿って伸びる内箱後面板と、前記断熱箱体の奥行方向に沿って伸びる内箱側面板と、を有し、前記断熱材は、前記内箱側面板の外面の近傍に配設された側面用真空断熱材と、前記外箱と前記内箱との間に発泡充填された発泡断熱材と、を有し、前記側面用真空断熱材の一端側にはスペーサが取り付けられ、前記スペーサは前記側面用真空断熱材と前記外箱側面板との間に配置されることを特徴とする。 The refrigerator of the present invention includes a heat insulating box in which a storage chamber is formed, and a heat insulating door that closes an opening of the storage chamber, and the heat insulating box has an outer surface that forms an outer surface of the heat insulating box. A box, an inner box arranged inside the outer box, and a heat insulating material arranged between the outer box and the inner box, wherein the outer box is the width of the heat insulating box body. Has an outer box rear surface plate extending along a direction, and an outer box side plate extending along the depth direction of the heat insulating box body, wherein the inner box is an inner box extending along the width direction of the heat insulating box body. A rear face plate, and an inner box side plate extending along the depth direction of the heat insulating box body, wherein the heat insulating material is a side surface vacuum heat insulating material disposed in the vicinity of the outer surface of the inner box side plate. A foam insulation material that is foam-filled between the outer box and the inner box, and a spacer is attached to one end of the side surface vacuum insulation material, and the spacer is the side surface vacuum insulation material. And the outer case side plate.

また、本発明の冷蔵庫では、前記外箱後面板と、前記内箱後面板との間に、後面用真空断熱材を配設し、幅方向に於いて、前記後面用真空断熱材の端部を、前記側面用真空断熱材の後端よりも外側まで配置することを特徴とする。 Further, in the refrigerator of the present invention, a rear surface vacuum heat insulating material is disposed between the outer box rear surface plate and the inner box rear surface plate, and an end portion of the rear surface vacuum heat insulating material in the width direction. Is arranged to the outside of the rear end of the side-surface vacuum heat insulating material.

また、本発明の冷蔵庫では、前記スペーサは、前記側面用真空断熱材の外側主面に接着される第１接着面と、前記側面用真空断熱材の端面に接着される第２接着面と、を有することを特徴とする。 Further, in the refrigerator of the present invention, the spacer has a first bonding surface bonded to the outer main surface of the side vacuum insulating material, and a second bonding surface bonded to the end surface of the side vacuum insulating material, It is characterized by having.

また、本発明の冷蔵庫では、前記スペーサは、前記貯蔵室の前記開口の側に配置される前記側面用真空断熱材の側辺に取り付けられることを特徴とする。 Further, in the refrigerator of the present invention, the spacer is attached to a side of the side surface vacuum heat insulating material arranged on the side of the opening of the storage chamber.

また、本発明の冷蔵庫では、前記側面用真空断熱材は、接着材を用いることなく、前記内箱側面板の直近に配置されることを特徴とする。 Further, in the refrigerator of the present invention, the vacuum heat insulating material for side surfaces is arranged in the immediate vicinity of the side plate of the inner box without using an adhesive material.

本発明の冷蔵庫の製造方法は、外箱側面板を有する外箱と、内箱側面板を有する内箱と、長手方向の側面側にスペーサが取り付けられた側面用真空断熱材と、を準備する工程と、前記内箱を前記外箱の内部に配置した後に、前記外箱側面板と前記内箱側面板との間の空間に前記側面用真空断熱材を挿入し、前記空間の前端側に前記スペーサを配置することで、前記内箱側面板の側に前記側面用真空断熱材を配設する工程と、前記外箱と前記内箱との前記空間に発泡断熱材を充填する工程と、を具備することを特徴とする。 The manufacturing method for a refrigerator of the present invention prepares an outer box having an outer box side plate, an inner box having an inner box side plate, and a side vacuum heat insulating material having a spacer attached to a side surface in the longitudinal direction. After the step and the inner box is placed inside the outer box, the side surface vacuum heat insulating material is inserted into the space between the outer box side plate and the inner box side plate, and the front end side of the space is inserted. By disposing the spacer, the step of disposing the side surface vacuum heat insulating material on the side of the inner box side surface plate, and the step of filling the space between the outer box and the inner box with foamed heat insulating material, It is characterized by including.

また、本発明の冷蔵庫の製造方法では、前記充填する工程では、前記外箱および前記内箱を横臥させた状態で、前記外箱の外箱後面板に形成した注入孔から、前記外箱と前記内箱との前記空間に、液状断熱発泡材を注入し、水平方向に於いて、前記スペーサを前記注入孔から２００ｍｍ以上離間させることを特徴とする。 Further, in the manufacturing method of the refrigerator of the present invention, in the filling step, in a state in which the outer box and the inner box are lying down, from the injection hole formed in the outer box rear face plate of the outer box, the outer box and A liquid insulating foam material is injected into the space with the inner box, and the spacer is separated from the injection hole by 200 mm or more in the horizontal direction.

本発明の冷蔵庫は、内部に貯蔵室が形成される断熱箱体と、前記貯蔵室の開口を閉鎖する断熱扉と、を備え、前記断熱箱体は、前記断熱箱体の外面を形成する外箱と、前記外箱の内部に配設された内箱と、前記外箱と前記内箱との間に配置された断熱材と、を有し、前記外箱は、前記断熱箱体の幅方向に沿って伸びる外箱後面板と、前記断熱箱体の奥行方向に沿って伸びる外箱側面板と、を有し、前記内箱は、前記断熱箱体の幅方向に沿って伸びる内箱後面板と、前記断熱箱体の奥行方向に沿って伸びる内箱側面板と、を有し、前記断熱材は、前記内箱側面板の外面の近傍に配設された側面用真空断熱材と、前記外箱と前記内箱との間に発泡充填された発泡断熱材と、を有し、前記側面用真空断熱材の一端側にはスペーサが取り付けられ、前記スペーサは前記側面用真空断熱材と前記外箱側面板との間に配置されることを特徴とする。これにより、本発明の冷蔵庫によれば、真空断熱材を備えた断熱効率が高い冷蔵庫を提供できる。詳しくは、側面用真空断熱材が内箱に略密着して配置されることで、外箱の内面近傍に断熱発泡材が充填されることから、外箱に不要な凹凸部分が形成されることが無く、冷蔵庫全体の外観意匠性の低下を抑止することができる。また、スペーサが側面用真空断熱材と外箱側面板との間に配置されることで、板状真空断熱材の位置を固定して所定の断熱機能を発揮させることができる。 The refrigerator of the present invention includes a heat insulating box in which a storage chamber is formed, and a heat insulating door that closes an opening of the storage chamber, and the heat insulating box has an outer surface that forms an outer surface of the heat insulating box. A box, an inner box arranged inside the outer box, and a heat insulating material arranged between the outer box and the inner box, wherein the outer box is the width of the heat insulating box body. Has an outer box rear surface plate extending along a direction, and an outer box side plate extending along the depth direction of the heat insulating box body, wherein the inner box is an inner box extending along the width direction of the heat insulating box body. A rear face plate, and an inner box side plate extending along the depth direction of the heat insulating box body, wherein the heat insulating material is a side surface vacuum heat insulating material disposed in the vicinity of the outer surface of the inner box side plate. A foam insulation material that is foam-filled between the outer box and the inner box, and a spacer is attached to one end of the side surface vacuum insulation material, and the spacer is the side surface vacuum insulation material. And the outer case side plate. As a result, according to the refrigerator of the present invention, it is possible to provide a refrigerator including a vacuum heat insulating material and having high heat insulation efficiency. Specifically, since the vacuum heat insulating material for the side surface is arranged in close contact with the inner box, the heat insulating foam material is filled near the inner surface of the outer box, so that unnecessary irregularities are formed in the outer box. Thus, it is possible to prevent the appearance of the entire refrigerator from being deteriorated. Further, the spacer is disposed between the side surface vacuum heat insulating material and the outer case side surface plate, so that the position of the plate-like vacuum heat insulating material can be fixed and a predetermined heat insulating function can be exhibited.

また、本発明の冷蔵庫では、前記外箱後面板と、前記内箱後面板との間に、後面用真空断熱材を配設し、幅方向に於いて、前記後面用真空断熱材の端部を、前記側面用真空断熱材の後端よりも外側まで配置することを特徴とする。これにより、本発明の冷蔵庫によれば、側面用真空断熱材と、後面用真空断熱材との間隙を小さくし、この間隙で発生する熱漏洩を小さくすることができる。 Further, in the refrigerator of the present invention, a rear surface vacuum heat insulating material is disposed between the outer box rear surface plate and the inner box rear surface plate, and an end portion of the rear surface vacuum heat insulating material in the width direction. Is arranged to the outside of the rear end of the side-surface vacuum heat insulating material. Thus, according to the refrigerator of the present invention, the gap between the side surface vacuum heat insulating material and the rear surface vacuum heat insulating material can be made small, and the heat leakage generated in this gap can be made small.

また、本発明の冷蔵庫では、前記スペーサは、前記側面用真空断熱材の外側主面に接着される第１接着面と、前記側面用真空断熱材の端面に接着される第２接着面と、を有することを特徴とする。これにより、本発明の冷蔵庫によれば、スペーサが側面用真空断熱材と外箱側面板との間で若干圧縮されることで、その反発力により側面用真空断熱材を内箱側面板の外面に略密着させることができる。 Further, in the refrigerator of the present invention, the spacer has a first bonding surface bonded to the outer main surface of the side vacuum insulating material, and a second bonding surface bonded to the end surface of the side vacuum insulating material, It is characterized by having. Thus, according to the refrigerator of the present invention, the spacer is slightly compressed between the side surface vacuum heat insulating material and the outer box side surface plate, so that the side surface vacuum heat insulating material is repulsed by the repulsive force. Can be closely attached to.

また、本発明の冷蔵庫では、前記スペーサは、前記貯蔵室の前記開口の側に配置される前記側面用真空断熱材の側辺に取り付けられることを特徴とする。これにより、本発明の冷蔵庫によれば、貯蔵室の開口側に配置される側面用真空断熱材の側辺を、内箱側面板に接近させることができる。 Further, in the refrigerator of the present invention, the spacer is attached to a side of the side surface vacuum heat insulating material arranged on the side of the opening of the storage chamber. Thus, according to the refrigerator of the present invention, the side edge of the side-surface vacuum heat insulating material arranged on the opening side of the storage chamber can be brought close to the inner-box side surface plate.

また、本発明の冷蔵庫では、前記側面用真空断熱材は、接着材を用いることなく、前記内箱側面板の直近に配置されることを特徴とする。これにより、本発明の冷蔵庫によれば、接着材を塗布する工程を省き、特殊な接着装置を用いることなく、側面用真空断熱材を内箱側面板の直近に配置できる。 Further, in the refrigerator of the present invention, the vacuum heat insulating material for side surfaces is arranged in the immediate vicinity of the side plate of the inner box without using an adhesive material. Thus, according to the refrigerator of the present invention, the step of applying the adhesive material can be omitted, and the side surface vacuum heat insulating material can be arranged in the immediate vicinity of the inner box side surface plate without using a special adhesive device.

本発明の冷蔵庫の製造方法は、外箱側面板を有する外箱と、内箱側面板を有する内箱と、長手方向の側面側にスペーサが取り付けられた側面用真空断熱材と、を準備する工程と、前記内箱を前記外箱の内部に配置した後に、前記外箱側面板と前記内箱側面板との間の空間に前記側面用真空断熱材を挿入し、前記空間の前端側に前記スペーサを配置することで、前記内箱側面板の側に前記側面用真空断熱材を配設する工程と、前記外箱と前記内箱との前記空間に発泡断熱材を充填する工程と、を具備することを特徴とする。これにより、本発明の冷蔵庫の製造方法によれば、内箱を外箱の内部に配置した後に、即ち、断熱発泡材を充填できる状態にした後に、外箱側面板と内箱側面板との空間に側面用真空断熱材を配設し、発泡断熱材を充填する。従って、側面用真空断熱材の外面に傷がつくことで真空状態が損なわれる所謂パンクが発生してしまうことを抑止することができる。更には、外箱側面板と内箱側面板との空間に側面用真空断熱材を挿入することで、スペーサにより側面用真空断熱材を所定位置に配設することができるので、冷蔵庫の生産性を向上することができる。また、スペーサで側面用真空断熱材を所定位置に配設できることから、接着材を用いて側面用真空断熱材を内箱に貼着するための貼着設備等は不要である。更に、側面用真空断熱材が、内箱側に配置されることから、外箱の近傍に断熱発泡材が充填されない部分である未充填領域が形成されることを抑制し、冷蔵庫全体の外観意匠性を向上することができる。 The manufacturing method for a refrigerator of the present invention prepares an outer box having an outer box side plate, an inner box having an inner box side plate, and a side vacuum heat insulating material having a spacer attached to a side surface in the longitudinal direction. After the step and the inner box is placed inside the outer box, the side surface vacuum heat insulating material is inserted into the space between the outer box side plate and the inner box side plate, and the front end side of the space is inserted. By disposing the spacer, the step of disposing the side surface vacuum heat insulating material on the side of the inner box side surface plate, and the step of filling the space between the outer box and the inner box with foamed heat insulating material, It is characterized by including. Thereby, according to the manufacturing method of the refrigerator of the present invention, after the inner box is placed inside the outer box, that is, after the heat-insulating foam material can be filled, the outer box side plate and the inner box side plate The side surface vacuum heat insulating material is arranged in the space and is filled with the foam heat insulating material. Therefore, it is possible to prevent the occurrence of so-called puncture that damages the vacuum state due to scratches on the outer surface of the side surface vacuum heat insulating material. Furthermore, by inserting the side vacuum insulation material into the space between the outer case side plate and the inner case side plate, it is possible to dispose the side vacuum insulation material at a predetermined position by means of the spacer. Can be improved. Further, since the side surface vacuum heat insulating material can be arranged at a predetermined position by the spacer, a sticking facility or the like for sticking the side surface vacuum heat insulating material to the inner box by using an adhesive is not necessary. Further, since the vacuum heat insulating material for the side surface is arranged on the inner box side, it is possible to suppress the formation of an unfilled region that is a portion not filled with the heat insulating foam material in the vicinity of the outer box, and to design the appearance of the entire refrigerator. It is possible to improve the property.

また、本発明の冷蔵庫の製造方法では、前記充填する工程では、前記外箱および前記内箱を横臥させた状態で、前記外箱の外箱後面板に形成した注入孔から、前記外箱と前記内箱との前記空間に、液状断熱発泡材を注入し、水平方向に於いて、前記スペーサを前記注入孔から２００ｍｍ以上離間させることを特徴とする。これにより、本発明の冷蔵庫の製造方法によれば、スペーサを注入孔から２００ｍｍ以上離間させることで、注入孔から注入される液状断熱発泡材の流れが、スペーサで阻害されることを抑制し、内箱と外箱との間に発泡断熱材を良好に充填することができる。 Further, in the manufacturing method of the refrigerator of the present invention, in the filling step, in a state in which the outer box and the inner box are lying down, from the injection hole formed in the outer box rear face plate of the outer box, the outer box and A liquid insulating foam material is injected into the space with the inner box, and the spacer is separated from the injection hole by 200 mm or more in the horizontal direction. Thereby, according to the manufacturing method of the refrigerator of the present invention, by separating the spacer from the injection hole by 200 mm or more, the flow of the liquid heat insulating foam injected from the injection hole is suppressed from being obstructed by the spacer, It is possible to satisfactorily fill the foam insulation between the inner box and the outer box.

本発明の実施形態に係る冷蔵庫を示す図であり、（Ａ）は冷蔵庫を前方から見た斜視図であり、（Ｂ）は冷蔵庫の側面断面図である。It is a figure showing a refrigerator concerning an embodiment of the present invention, (A) is a perspective view which looked at a refrigerator from the front, and (B) is a side sectional view of a refrigerator. 本発明の実施形態に係る冷蔵庫を示す図であり、（Ａ）は外箱を前方から見た斜視図であり、（Ｂ）は内箱を前方から見た斜視図である。It is a figure which shows the refrigerator which concerns on embodiment of this invention, (A) is the perspective view which looked at the outer box from the front, (B) is the perspective view which looked at the inner box from the front. 本発明の実施形態に係る冷蔵庫を示す図であり、（Ａ）はスペーサを示す斜視図であり、（Ｂ）はスペーサが側面用真空断熱材に組み付けられる構成を示す断面図であり、（Ｃ）はスペーサが側面用真空断熱材に組み付けられる構成を示す斜視図である。It is a figure which shows the refrigerator which concerns on embodiment of this invention, (A) is a perspective view which shows a spacer, (B) is sectional drawing which shows a structure with which a spacer is assembled with a vacuum heat insulating material for side surfaces, (C) 8] is a perspective view showing a structure in which a spacer is assembled to a vacuum heat insulating material for a side surface. 本発明の実施形態に係る冷蔵庫を示す図であり、（Ａ）は冷蔵庫の上下方向中間部に於ける断面図であり、（Ｂ）および（Ｃ）は（Ａ）の拡大断面図である。It is a figure which shows the refrigerator which concerns on embodiment of this invention, (A) is sectional drawing in the up-down direction intermediate part of a refrigerator, (B) and (C) is an expanded sectional view of (A). 本発明の実施形態に係る冷蔵庫を示す図であり、冷蔵庫の前方断面図である。It is a figure showing the refrigerator concerning the embodiment of the present invention, and is a front sectional view of a refrigerator. 本発明の実施形態に係る冷蔵庫を示す図であり、冷蔵庫の上方断面図である。It is a figure showing the refrigerator concerning the embodiment of the present invention, and is an upper sectional view of a refrigerator. 本発明の実施形態に係る冷蔵庫の製造方法を示す斜視図である。It is a perspective view showing the manufacturing method of the refrigerator concerning the embodiment of the present invention. 本発明の実施形態に係る冷蔵庫の製造方法を示す図であり、（Ａ）から（Ｃ）は断面図である。It is a figure which shows the manufacturing method of the refrigerator which concerns on embodiment of this invention, (A)-(C) is sectional drawing. 本発明の実施形態に係る冷蔵庫の製造方法を示す図あり、（Ａ）は側方断面図であり、（Ｂ）は（Ａ）の切断面線Ａ−Ａに於ける断面図である。It is a figure which shows the manufacturing method of the refrigerator which concerns on embodiment of this invention, (A) is a side sectional drawing, (B) is sectional drawing in the cross section line AA of (A). 背景技術に係る冷蔵庫を示す図であり、（Ａ）は上方断面図であり、（Ｂ）は斜視図である。It is a figure which shows the refrigerator which concerns on background art, (A) is an upper sectional view, (B) is a perspective view.

以下、本発明の実施形態に係る冷蔵庫１０を図面に基づき詳細に説明する。尚、以下の説明では、上下方向は冷蔵庫１０の高さ方向を示し、左右方向は冷蔵庫１０の幅方向を示し、前後方向は冷蔵庫１０の奥行方向を示している。また、本実施形態の説明の際には、同一の部材には原則として同一の符番を用い、繰り返しの説明は省略する。 Hereinafter, a refrigerator 10 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the up-down direction indicates the height direction of the refrigerator 10, the left-right direction indicates the width direction of the refrigerator 10, and the front-back direction indicates the depth direction of the refrigerator 10. Further, in the description of the present embodiment, the same reference numerals are used for the same members in principle, and repeated description will be omitted.

図１を参照して、冷蔵庫１０の概略構成を説明する。図１（Ａ）は冷蔵庫１０を前方から見た斜視図であり、図１（Ｂ）は冷蔵庫１０の側方断面図である。 The schematic configuration of the refrigerator 10 will be described with reference to FIG. FIG. 1A is a perspective view of the refrigerator 10 seen from the front, and FIG. 1B is a side sectional view of the refrigerator 10.

図１（Ａ）および図１（Ｂ）を参照して、冷蔵庫１０は、断熱箱体１１の内部に貯蔵室としての冷蔵室１２および冷凍室１３が形成されており、冷蔵室１２の前面開口は断熱扉３４で閉鎖され、冷凍室１３の前面開口は断熱扉３５で閉鎖されている。断熱扉３４および断熱扉３５は、例えば右方側の端部が断熱箱体１１に介して回転可能に接続された回転式の扉である。断熱扉３４および断熱扉３５としては、引出式の扉が採用されても良い。 Referring to FIGS. 1A and 1B, a refrigerator 10 includes a refrigerating chamber 12 and a freezing chamber 13 as storage chambers formed inside a heat insulating box 11, and a front opening of the refrigerating chamber 12 is formed. Is closed by a heat insulating door 34, and the front opening of the freezer compartment 13 is closed by a heat insulating door 35. The heat insulating door 34 and the heat insulating door 35 are, for example, rotary doors whose right ends are rotatably connected to the heat insulating box 11. As the heat insulation door 34 and the heat insulation door 35, drawer-type doors may be adopted.

図１（Ｂ）に示すように、冷凍室１３の後方には冷却室２７が区画形成されており、冷却室２７には蒸発器２６が収納されている。また、断熱箱体１１の最下部後方には機械室１４が区画形成されており、機械室１４には圧縮機２９が収納されている。蒸発器２６および圧縮機２９は、図示しない膨張手段および凝縮器と冷媒配管を経由して接続され、蒸気圧縮冷凍サイクルを形成している。 As shown in FIG. 1B, a cooling chamber 27 is defined behind the freezing chamber 13, and an evaporator 26 is housed in the cooling chamber 27. Further, a machine room 14 is partitioned and formed in the lowermost rear part of the heat insulating box body 11, and a compressor 29 is housed in the machine room 14. The evaporator 26 and the compressor 29 are connected to an expansion means and a condenser (not shown) via a refrigerant pipe to form a vapor compression refrigeration cycle.

冷却室２７の上部には送風機２８が配設されており、蒸発器２６が冷却した冷却室２７の内部の空気を送風機２８が冷蔵室１２および冷凍室１３に送風する。冷蔵室１２への風路には、ダンパ１９が介装されている。ここでは図示しない制御装置は、図示しない冷蔵室の庫内温度センサーを検知し、ダンパ１９の開閉を制御する。これにより、冷蔵室１２への冷気の流量を調整し、冷蔵室１２の庫内温度を一定に保つ。従って、冷蔵室１２は冷蔵温度帯域に冷却され、冷凍室１３は冷凍温度帯域に冷却される。また、冷蔵室１２および冷凍室１３を冷却した冷気は、冷却室２７に帰還する。図１（Ｂ）では、冷気の流れを矢印で示している。また、蒸発器２６の下方には、蒸発器２６の着霜を熔融するための除霜ヒータ２０が配設されている。 A blower 28 is disposed above the cooling chamber 27, and the blower 28 blows the air inside the cooling chamber 27 cooled by the evaporator 26 to the refrigerating chamber 12 and the freezing chamber 13. A damper 19 is provided in the air passage to the refrigerator compartment 12. Here, a control device (not shown) detects an internal temperature sensor of a refrigerating room (not shown) and controls opening/closing of the damper 19. Thereby, the flow rate of the cool air to the refrigerating compartment 12 is adjusted, and the temperature inside the refrigerating compartment 12 is kept constant. Therefore, the refrigerating compartment 12 is cooled to the refrigerating temperature zone, and the freezing compartment 13 is cooled to the freezing temperature zone. The cold air that has cooled the refrigerating chamber 12 and the freezing chamber 13 returns to the cooling chamber 27. In FIG. 1B, the flow of cold air is indicated by arrows. Further, below the evaporator 26, a defrost heater 20 for melting the frost formed on the evaporator 26 is arranged.

断熱箱体１１は、冷蔵庫１０の外形を形成する鋼板から成る外箱１５と、外箱１５の内側に形成された箱形の合成樹脂板から成る内箱１６と、外箱１５と内箱１６との間に充填された断熱材１７と、から構成されている。 The heat insulating box 11 includes an outer box 15 made of a steel plate that forms the outer shape of the refrigerator 10, an inner box 16 made of a box-shaped synthetic resin plate formed inside the outer box 15, an outer box 15 and an inner box 16 And a heat insulating material 17 filled in between.

断熱材１７としては、発泡断熱材および真空断熱材を採用している。発泡断熱材としては例えば発泡ウレタンが採用される。真空断熱材とは、ガラス等の繊維の集合体を袋に収納し、その袋の内部を真空状態にしたものである。本実施形態では、真空断熱材として、後述する側面用真空断熱材２２および後面用真空断熱材２５を採用している。図１（Ｂ）では、断熱箱体１１の後面近傍に後面用真空断熱材２５を配設している。側面用真空断熱材２２および後面用真空断熱材２５は、板状を呈する真空断熱材である。 As the heat insulating material 17, a foamed heat insulating material and a vacuum heat insulating material are adopted. As the foam insulation material, for example, urethane foam is adopted. The vacuum heat insulating material is one in which an aggregate of fibers such as glass is housed in a bag and the inside of the bag is in a vacuum state. In this embodiment, a side surface vacuum heat insulating material 22 and a rear surface vacuum heat insulating material 25, which will be described later, are used as the vacuum heat insulating material. In FIG. 1B, the rear-surface vacuum heat insulating material 25 is arranged near the rear surface of the heat insulating box 11. The side surface vacuum heat insulating material 22 and the rear surface vacuum heat insulating material 25 are plate-shaped vacuum heat insulating materials.

図２を参照して、外箱１５および内箱１６の構成を説明する。図２（Ａ）は外箱１５を前側下方から見た斜視図であり、図２（Ｂ）は内箱１６を前側下方から見た斜視図である。 The configurations of the outer box 15 and the inner box 16 will be described with reference to FIG. 2(A) is a perspective view of the outer box 15 as seen from the lower front side, and FIG. 2(B) is a perspective view of the inner box 16 as seen from the lower front side.

図２（Ａ）を参照して、外箱１５は、厚みが０．５ｍｍ程度の薄い鋼板を曲折加工して成り、外箱後面板１５１（図４（Ａ）参照）と、外箱後面板１５１の左右方向端部から前方に向かって伸びる外箱側面板１５２と、外箱後面板１５１の上方端部から前方に向かって伸びる外箱上面板１５３と、を有している。 Referring to FIG. 2(A), the outer box 15 is formed by bending a thin steel plate having a thickness of about 0.5 mm, and the outer box rear face plate 151 (see FIG. 4(A)) and the outer box rear face plate. The outer box side plate 152 extends forward from the left and right ends of the outer box 151, and the outer box top plate 153 extends forward from the upper end of the outer box rear plate 151.

外箱側面板１５２と外箱上面板１５３は、一枚の鋼板をUの字状に曲げて形成されている。また、図４（Ｂ）を参照して、外箱側面板１５２の後端を溝形状に曲折することで溝１５４が形成されている。更に、外箱後面板１５１の幅方向端部はＬ字状に曲折加工された端部１５５とされている。外箱後面板１５１の端部１５５を、外箱側面板１５２の溝１５４に差し込み、後述する発泡工程を行うことで、外箱後面板１５１と外箱側面板１５２とは接合される。 The outer box side plate 152 and the outer box top plate 153 are formed by bending a single steel plate into a U shape. Further, referring to FIG. 4B, the groove 154 is formed by bending the rear end of the outer casing side plate 152 into a groove shape. Further, the widthwise end portion of the outer case rear plate 151 is an end portion 155 that is bent into an L shape. The outer box rear face plate 151 and the outer box side face plate 152 are joined by inserting the end portion 155 of the outer box rear face plate 151 into the groove 154 of the outer box side face plate 152 and performing a foaming process described later.

また、外箱側面板１５２および外箱上面板１５３の内面には、蒸気圧縮冷凍サイクルで用いられる冷媒が流通する冷媒配管１８が、アルミテープ３２により貼着されている。 Further, a refrigerant pipe 18 through which a refrigerant used in the vapor compression refrigeration cycle flows is attached to the inner surfaces of the outer case side plate 152 and the outer case upper plate 153 with an aluminum tape 32.

図２（Ｂ）を参照して、内箱１６は、所定形状に真空成形された合成樹脂製の成形体から成る。内箱１６は、内箱後面板１６１と、内箱後面板１６１の左右方向端部から前方に向かって伸びる内箱側面板１６２と、内箱後面板１６１の上方端部から前方に向かって伸びる内箱上面板１６３と、内箱後面板１６１の下端から前方に向かって伸びる内箱下面板１６４と、を有している。また、内箱後面板１６１の上下方向に於ける中間部には、冷蔵室１２と冷凍室１３とを区画する断熱区画壁３３が形成されている。 Referring to FIG. 2B, the inner box 16 is made of a synthetic resin molded body vacuum-molded into a predetermined shape. The inner box 16 extends forward from an inner box rear face plate 161, an inner box side plate 162 that extends forward from the left and right ends of the inner box rear face plate 161, and an upper end of the inner box rear face plate 161. The inner box upper surface plate 163 and the inner box lower surface plate 164 extend forward from the lower end of the inner box rear surface plate 161. Further, a heat insulating partition wall 33 that partitions the refrigerating chamber 12 and the freezing chamber 13 is formed in an intermediate portion in the up-down direction of the inner box rear face plate 161.

内箱１６を構成する樹脂の厚みは、０．５ｍｍ以上２．０ｍｍ以下が好ましく、更には０．７ｍｍ以上１．５ｍｍ以下が好ましい。内箱１６の厚みをこの範囲とすることで、内箱１６の強度を充分に大きく確保でき、製造工程の発泡樹脂を充填する工程に於いて、内箱１６が変形することを防止できる。 The thickness of the resin forming the inner box 16 is preferably 0.5 mm or more and 2.0 mm or less, and more preferably 0.7 mm or more and 1.5 mm or less. By setting the thickness of the inner box 16 within this range, the strength of the inner box 16 can be sufficiently ensured, and the inner box 16 can be prevented from being deformed in the step of filling the foamed resin in the manufacturing process.

図３を参照して、側面用真空断熱材２２およびその位置を規制するスペーサ３０を説明する。図３（Ａ）はスペーサ３０を示す斜視図であり、図３（Ｂ）は側面用真空断熱材２２にスペーサ３０が取り付けられた状態を示す断面図であり、図３（Ｃ）は側面用真空断熱材２２にスペーサ３０が取り付けられた状態の全体構成を示す斜視図である。 With reference to FIG. 3, the side-surface vacuum heat insulating material 22 and the spacer 30 for controlling the position thereof will be described. 3A is a perspective view showing the spacer 30, FIG. 3B is a sectional view showing a state in which the spacer 30 is attached to the side vacuum insulating material 22, and FIG. 3C is a side view. It is a perspective view showing the whole composition in the state where spacer 30 was attached to vacuum heat insulating material 22.

図３（Ａ）を参照して、スペーサ３０は、各角部が面取された略直方体形状を呈している。図３（Ａ）の紙面前方からスペーサ３０を見た場合、スペーサ３０は、紙面左側上方の部分を切り欠いた断面形状を呈している。スペーサ３０には、紙面左方を向く平坦面である第１接着面３０１と、第１接着面３０１と垂直に交差し、紙面上方を向く平坦面である第２接着面３０２が形成されている。 With reference to FIG. 3A, the spacer 30 has a substantially rectangular parallelepiped shape with chamfered corners. When the spacer 30 is viewed from the front side of the paper surface of FIG. 3A, the spacer 30 has a cross-sectional shape in which the upper left portion of the paper surface is cut away. The spacer 30 is formed with a first adhesive surface 301 that is a flat surface that faces the left side of the paper, and a second adhesive surface 302 that is a flat surface that intersects the first adhesive surface 301 perpendicularly and that faces upward in the paper surface. ..

スペーサ３０の高さＬ１は、１０ｍｍ以上５０ｍｍ未満が好適である。スペーサ３０の高さＬ１を１０ｍｍ以上とすることで、図４（Ｃ）を参照して後述するように、外箱側面板１５２の端部である端部４６から側面用真空断熱材２２を保護することができる。また図４（Ｃ）に示す端部４６の形状は、側面用真空断熱材２２の有無に関わらず同一であるため、スペーサ３０の高さＬ１を１０ｍｍ以上５０ｍｍ未満とすることで、生産性が低下することを抑制することができる。 The height L1 of the spacer 30 is preferably 10 mm or more and less than 50 mm. By setting the height L1 of the spacer 30 to 10 mm or more, as described later with reference to FIG. 4C, the side surface vacuum heat insulating material 22 is protected from the end portion 46 which is the end portion of the outer casing side surface plate 152. can do. Further, since the shape of the end portion 46 shown in FIG. 4C is the same regardless of the presence or absence of the side-surface vacuum heat insulating material 22, by setting the height L1 of the spacer 30 to 10 mm or more and less than 50 mm, the productivity is improved. It is possible to suppress the decrease.

スペーサ３０は、発泡ポリエチレン等の発泡樹脂材から成る。スペーサ３０として発泡樹脂材を採用することで、図８（Ａ）を参照して後述する空間４３にスペーサ３０を挿入する際に、スペーサ３０が適度に圧縮変形し、この際にスペーサ３０から発生する反発力で、側面用真空断熱材２２を内箱側面板１６２に押しつけることができる。 The spacer 30 is made of a foamed resin material such as foamed polyethylene. By using the foamed resin material as the spacer 30, the spacer 30 is appropriately compressed and deformed when the spacer 30 is inserted into the space 43 described later with reference to FIG. The side surface vacuum heat insulating material 22 can be pressed against the inner box side surface plate 162 by the repulsive force.

図３（Ｂ）を参照して、スペーサ３０は側面用真空断熱材２２の紙面下端に取り付けられる。具体的には、スペーサ３０の第１接着面３０１は、側面用真空断熱材２２の紙面右方側面の下端に接着される。また、スペーサ３０の第２接着面３０２は、側面用真空断熱材２２の紙面下面の右方部分に接着される。側面用真空断熱材２２とスペーサ３０との接着には、接着テープまたは接着剤が用いられる。 Referring to FIG. 3B, the spacer 30 is attached to the lower end of the side surface vacuum heat insulating material 22 in the drawing. Specifically, the first bonding surface 301 of the spacer 30 is bonded to the lower end of the side surface vacuum heat insulating material 22 on the right side surface of the drawing. The second bonding surface 302 of the spacer 30 is bonded to the right side portion of the side surface vacuum heat insulating material 22 on the lower surface of the drawing. An adhesive tape or an adhesive is used to bond the side surface vacuum heat insulating material 22 and the spacer 30.

図３（Ｃ）を参照して、側面用真空断熱材２２は、上下方向に長く形成された略矩形形状を呈しており、前方側辺に複数のスペーサ３０が取り付けられる。ここでは、側面用真空断熱材２２の前方側辺に於いて、上方端部および下方端部に２つのスペーサ３０が取り付けられている。側面用真空断熱材２２に複数のスペーサ３０を取り付けることで、側面用真空断熱材２２をより安定的に、断熱箱体１１に位置決めして組み込むことができる。また、図６を参照して後述するように、スペーサ３０は、側面用真空断熱材２２の、紙面上に於ける後方側辺に配置しても良い。 With reference to FIG. 3C, the side-surface vacuum heat insulating material 22 has a substantially rectangular shape elongated in the up-down direction, and a plurality of spacers 30 are attached to the front side. Here, two spacers 30 are attached to an upper end portion and a lower end portion on the front side of the side surface vacuum heat insulating material 22. By attaching the plurality of spacers 30 to the side-surface vacuum heat insulating material 22, the side-surface vacuum heat insulating material 22 can be positioned and incorporated into the heat insulating box body 11 more stably. Further, as will be described later with reference to FIG. 6, the spacer 30 may be arranged on the rear side of the side surface vacuum heat insulating material 22 on the paper surface.

図４および図５を参照して、冷蔵庫１０の断面構成を説明する。図４（Ａ）は上下方向の中間部に於ける冷蔵庫１０の水平断面図であり、図４（Ｂ）は図４（Ａ）の間隙４２が形成される部分を拡大して示す拡大断面図であり、図４（Ｃ）は図４（Ａ）のスペーサ３０が配置される部分を拡大して示す拡大断面図である。図５は、冷蔵庫１０の前方断面図である。 The sectional configuration of the refrigerator 10 will be described with reference to FIGS. 4 and 5. 4A is a horizontal cross-sectional view of the refrigerator 10 at an intermediate portion in the vertical direction, and FIG. 4B is an enlarged cross-sectional view showing an enlarged portion where the gap 42 of FIG. 4A is formed. 4C is an enlarged cross-sectional view showing a portion where the spacer 30 of FIG. 4A is arranged in an enlarged manner. FIG. 5 is a front sectional view of the refrigerator 10.

図４（Ａ）を参照して、内箱側面板１６２と外箱側面板１５２との空間４３において、側面用真空断熱材２２は内箱側面板１６２に略密着するように配設されている。側面用真空断熱材２２は、内箱側面板１６２の前端近傍から、内箱側面板１６２の後端近傍まで連続して、内箱側面板１６２の外面に略密着している。ここで、内箱側面板１６２の外面と側面用真空断熱材２２との間には若干の間隙が形成されても良い。 Referring to FIG. 4A, in the space 43 between the inner box side plate 162 and the outer box side plate 152, the side surface vacuum heat insulating material 22 is disposed so as to be substantially in close contact with the inner box side plate 162. .. The side surface vacuum heat insulating material 22 is continuously adhered to the outer surface of the inner box side surface plate 162 continuously from the vicinity of the front end of the inner box side surface plate 162 to the vicinity of the rear end of the inner box side surface plate 162. Here, a slight gap may be formed between the outer surface of the inner case side surface plate 162 and the side surface vacuum heat insulating material 22.

内箱側面板１６２と外箱側面板１５２との空間４３において、幅方向に於ける外側部分には発泡断熱材２３が発泡充填されている。また、側面用真空断熱材２２の後端は、接着テープ３１を介して、内箱後面板１６１に貼着されている。 In the space 43 between the inner box side plate 162 and the outer box side plate 152, the foam insulation material 23 is foam-filled in the outer portion in the width direction. Further, the rear end of the vacuum heat insulating material 22 for the side surface is attached to the inner box rear surface plate 161 via the adhesive tape 31.

図４（Ｂ）を参照して、後面用真空断熱材２５は、外箱後面板１５１の内面に配設されており、内箱後面板１６１とは離間している。後面用真空断熱材２５と内箱後面板１６１との間には、発泡断熱材２３が充填されている。 Referring to FIG. 4(B), the rear surface vacuum heat insulating material 25 is disposed on the inner surface of the outer case rear surface plate 151 and is separated from the inner case rear surface plate 161. The foam heat insulating material 23 is filled between the rear vacuum heat insulating material 25 and the inner box rear surface plate 161.

後面用真空断熱材２５の幅方向の端部４１は、側面用真空断熱材２２の内面の後側の端部４０よりも、幅方向に於いて外側に配置されている。このようにすることで、側面用真空断熱材２２の後端と後面用真空断熱材２５の前面との間隙４２を小さくできるので、間隙４２を経由した熱の漏洩を少なくし、冷蔵庫１０の冷却効率を向上することができる。 The width-direction end portion 41 of the rear surface vacuum heat insulating material 25 is arranged outside in the width direction of the inner surface rear side end portion 40 of the side surface vacuum heat insulating material 22. By doing so, the gap 42 between the rear end of the side surface vacuum heat insulating material 22 and the front surface of the rear surface vacuum heat insulating material 25 can be reduced, so that heat leakage through the gap 42 can be reduced and the refrigerator 10 can be cooled. The efficiency can be improved.

図４（Ｃ）を参照して、側面用真空断熱材２２の前端にはスペーサ３０が固定されており、スペーサ３０は側面用真空断熱材２２と外箱側面板１５２との間で圧縮されている。係る構成とすることで、圧縮されたスペーサ３０から右方（幅方向内側）に向かって反発力が生じ、側面用真空断熱材２２の前端部を内箱側面板１６２に押しつけることができる。よって、製造工程に於いて発泡断熱材２３を発泡充填する際に、側面用真空断熱材２２が不用意に移動してしまうことを抑止することができる。 Referring to FIG. 4C, a spacer 30 is fixed to the front end of the side vacuum insulating material 22, and the spacer 30 is compressed between the side vacuum insulating material 22 and the outer case side plate 152. There is. With such a configuration, a repulsive force is generated from the compressed spacer 30 to the right (inward in the width direction), and the front end portion of the side surface vacuum heat insulating material 22 can be pressed against the inner box side surface plate 162. Therefore, it is possible to prevent the side surface vacuum heat insulating material 22 from being inadvertently moved when the foam heat insulating material 23 is foam-filled in the manufacturing process.

外箱側面板１５２の先端部を曲折加工することで外箱接合部４４が形成されており、内箱側面板１６２の先端部を曲折加工することで内箱接合部４５が形成されている。また、外箱接合部４４に内箱接合部４５を嵌合することで、外箱側面板１５２の先端部と内箱側面板１６２の先端部とが接合されている。 The outer box joint portion 44 is formed by bending the tip of the outer box side plate 152, and the inner box joint 45 is formed by bending the tip of the inner box side plate 162. Further, by fitting the inner box joint portion 45 to the outer box joint portion 44, the tip of the outer box side plate 152 and the tip of the inner box side plate 162 are joined.

ここで、外箱接合部４４の端部には、内箱接合部４５の嵌合を容易にするために、後方に向かって広がる端部４６が形成されている。端部４６は鋼板の端面であるため、端部４６が側面用真空断熱材２２に押しつけられると、側面用真空断熱材２２の外皮が破れてしまう恐れがある。本実施形態では、側面用真空断熱材２２の前端に配置されたスペーサ３０が端部４６に接しているので、側面用真空断熱材２２が端部４６に接することはない。よって、端部４６により側面用真空断熱材２２が破れてしまうことを防止することができる。 Here, an end portion 46 that widens rearward is formed at an end portion of the outer box joint portion 44 in order to facilitate fitting of the inner box joint portion 45. Since the end portion 46 is the end surface of the steel plate, when the end portion 46 is pressed against the side surface vacuum heat insulating material 22, the outer skin of the side surface vacuum heat insulating material 22 may be broken. In the present embodiment, since the spacer 30 arranged at the front end of the side surface vacuum heat insulating material 22 is in contact with the end portion 46, the side surface vacuum heat insulating material 22 is not in contact with the end portion 46. Therefore, it is possible to prevent the side surface vacuum heat insulating material 22 from being broken by the end portion 46.

スペーサ３０が端部４６に接することから、側面用真空断熱材２２の前方に空間４７が形成される。よって、冷蔵庫１０の製造工程に於いて空間４３に発泡断熱材２３を発泡充填する工程に於いて、空間４７を経由して、後述する液状断熱発泡材３８を良好に流動させることが出来る。 Since the spacer 30 contacts the end portion 46, the space 47 is formed in front of the side surface vacuum heat insulating material 22. Therefore, in the process of foam-filling the space 43 with the foamed heat insulating material 23 in the manufacturing process of the refrigerator 10, the liquid heat-insulated foaming material 38 described later can be satisfactorily flowed through the space 47.

図５は、冷蔵庫１０の前方断面図である。この図を参照して、冷凍室１３を覆う断熱材１７の厚さＬ３は、冷蔵室１２を覆う断熱材１７の厚さＬ２よりも長い。このようにすることで、冷凍温度帯域に冷却される冷凍室１３の熱漏洩を少なくし、更に、冷蔵温度帯域に冷却される冷蔵室１２の庫内容積を大きく確保することができる。 FIG. 5 is a front sectional view of the refrigerator 10. With reference to this figure, the thickness L3 of the heat insulating material 17 covering the freezer compartment 13 is longer than the thickness L2 of the heat insulating material 17 covering the refrigerating compartment 12. By doing so, it is possible to reduce the heat leakage of the freezing compartment 13 cooled to the freezing temperature zone, and further to secure a large internal volume of the refrigerating compartment 12 cooled to the refrigeration temperature zone.

ここで、側面用真空断熱材２２は、冷蔵室内箱１６５の外面に略密着するため、冷蔵室内箱１６５と側面用真空断熱材２２との間には、原則的には発泡断熱材２３は存在しない。 Here, since the side surface vacuum heat insulating material 22 substantially adheres to the outer surface of the refrigerating room box 165, the foamed heat insulating material 23 is in principle present between the refrigerating room box 165 and the side surface vacuum heat insulating material 22. do not do.

冷凍室内箱１６６の外側面には、収納容器をガイドするレール部４９またはその補強板が、幅方向外側に突出して形成されている。よって、レール部４９が形成された部分では、側面用真空断熱材２２はレール部４９に当接している。 On the outer surface of the freezing compartment box 166, a rail portion 49 for guiding the storage container or a reinforcing plate thereof is formed so as to project outward in the width direction. Therefore, the side surface vacuum heat insulating material 22 is in contact with the rail portion 49 in the portion where the rail portion 49 is formed.

一方、レール部４９が形成されていない部分では、冷凍室内箱１６６の側面と側面用真空断熱材２２との間には、発泡断熱材２３が介在している。係る構成より、冷凍室内箱１６６と側面用真空断熱材２２との間に充填された発泡断熱材２３と、レール部４９とで、平坦面が形成される。この平坦面に側面用真空断熱材２２の下部が当接することで、側面用真空断熱材２２の下部が平坦とされている。なお、冷蔵室内箱１６５の上面には上面用真空断熱材２４が配設されている。 On the other hand, in the portion where the rail portion 49 is not formed, the foam heat insulating material 23 is interposed between the side surface of the freezing compartment box 166 and the side surface vacuum heat insulating material 22. With this configuration, the foam insulation material 23 filled between the freezing compartment box 166 and the side vacuum insulation material 22 and the rail portion 49 form a flat surface. The lower portion of the side surface vacuum heat insulating material 22 is made flat by contacting the lower portion of the side surface vacuum heat insulating material 22 with this flat surface. A vacuum heat insulating material 24 for the upper surface is provided on the upper surface of the refrigerator compartment box 165.

図６を参照して、他の形態に係る冷蔵庫１０を説明する。図６は、冷蔵庫１０の上方断面図である。 A refrigerator 10 according to another embodiment will be described with reference to FIG. 6. FIG. 6 is an upper sectional view of the refrigerator 10.

ここでは、側面用真空断熱材２２の後端は、内箱後面板１６１の後面よりも後方に配置されている。係る場合、図４（Ａ）に示した接着テープ３１を介して、側面用真空断熱材２２の後端を内箱後面板１６１に貼着することは容易ではない。 Here, the rear end of the side-surface vacuum heat insulating material 22 is arranged rearward of the rear surface of the inner box rear face plate 161. In this case, it is not easy to attach the rear end of the side-surface vacuum heat insulating material 22 to the inner case rear face plate 161 via the adhesive tape 31 shown in FIG. 4(A).

このため、側面用真空断熱材２２の後端にもスペーサ３０が取り付けられている。側面用真空断熱材２２の後端に取り付けられたスペーサ３０も、側面用真空断熱材２２の外面と外箱側面板１５２の内面との間で圧縮されている。また、側面用真空断熱材２２の後端に取り付けられたスペーサ３０は、側面用真空断熱材２２の前端に取り付けられたスペーサ３０と同様の形状である。係る構成とすることで、側面用真空断熱材２２の後端側を内箱後面板１６１側に押しつけ、側面用真空断熱材２２を全体的に内箱後面板１６１に密着させることができる。 For this reason, the spacer 30 is also attached to the rear end of the side-surface vacuum heat insulating material 22. The spacer 30 attached to the rear end of the side surface vacuum heat insulating material 22 is also compressed between the outer surface of the side surface vacuum heat insulating material 22 and the inner surface of the outer box side surface plate 152. Further, the spacer 30 attached to the rear end of the side surface vacuum heat insulating material 22 has the same shape as the spacer 30 attached to the front end of the side surface vacuum heat insulating material 22. With such a configuration, the rear end side of the side surface vacuum heat insulating material 22 can be pressed against the inner box rear surface plate 161 side, and the side surface vacuum heat insulating material 22 can be entirely adhered to the inner box rear surface plate 161.

本実施形態では、側面用真空断熱材２２を幅方向の内側に配置することで冷蔵庫１０の外観意匠性を向上することができる。具体的には、側面用真空断熱材２２と発泡断熱材２３とでは熱膨張率が異なるので、側面用真空断熱材２２を外箱側面板１５２に貼り付けると、側面用真空断熱材２２と発泡断熱材２３との境界が、外箱側面板１５２の外面に段差の如く現れてしまう恐れがある。本実施形態では、側面用真空断熱材２２と発泡断熱材２３との境界は、外箱側面板１５２から離れているので、この境界が外箱側面板１５２に現れることない。よって、冷蔵庫１０の側面の外観意匠性の低下を防止している。 In the present embodiment, by arranging the side vacuum heat insulating material 22 inside in the width direction, it is possible to improve the appearance design of the refrigerator 10. Specifically, since the side surface vacuum heat insulating material 22 and the foam heat insulating material 23 have different coefficients of thermal expansion, when the side surface vacuum heat insulating material 22 is attached to the outer box side surface plate 152, the side surface vacuum heat insulating material 22 and the foam are formed. The boundary with the heat insulating material 23 may appear like a step on the outer surface of the outer casing side plate 152. In the present embodiment, the boundary between the side surface vacuum heat insulating material 22 and the foam heat insulating material 23 is separated from the outer box side plate 152, so that this boundary does not appear on the outer box side plate 152. Therefore, it is possible to prevent the appearance of the side surface of the refrigerator 10 from being deteriorated.

仮に、側面用真空断熱材２２を外箱側面板１５２に略密着させようとすれば、冷媒配管１８の近傍に空気溜りができないような対策が必要になる。例えば、側面用真空断熱材２２の外側側面に、冷媒配管１８に対応した凹部を形成する対策が必要になる。本実施形態では、冷媒配管１８は発泡断熱材２３に埋設されるので、このような対策を不要にし、冷蔵庫１０の構成を簡素化し、製造コストを低減することができる。 If the side vacuum heat insulating material 22 is to be brought into close contact with the outer case side surface plate 152, it is necessary to take measures to prevent air accumulation in the vicinity of the refrigerant pipe 18. For example, it is necessary to take measures to form a recess corresponding to the refrigerant pipe 18 on the outer side surface of the side surface vacuum heat insulating material 22. In the present embodiment, since the refrigerant pipe 18 is embedded in the foamed heat insulating material 23, such measures are unnecessary, the configuration of the refrigerator 10 can be simplified, and the manufacturing cost can be reduced.

更に、本実施形態によれば、図４（Ａ）を参照して、側面用真空断熱材２２が冷媒配管１８に接近しないことから、冷媒配管１８を避けるための溝を側面用真空断熱材２２の外面に形成する必要がない。即ち、単純な平板状態の側面用真空断熱材２２を採用することができる。よって、側面用真空断熱材２２に形成される溝の制限を冷媒配管１８が受けないので、冷媒配管１８を比較的自由に配設することができる。 Further, according to the present embodiment, referring to FIG. 4(A), since the side surface vacuum heat insulating material 22 does not approach the refrigerant pipe 18, the groove for avoiding the refrigerant pipe 18 is formed in the side surface vacuum heat insulating material 22. Need not be formed on the outer surface of the. That is, the side surface vacuum heat insulating material 22 in a simple flat plate state can be adopted. Therefore, since the refrigerant pipe 18 is not restricted by the groove formed in the side surface vacuum heat insulating material 22, the refrigerant pipe 18 can be arranged relatively freely.

図７から図９に基づいて、更に上記した各図も参照しつつ、上記した構成を有する冷蔵庫１０の製造方法を説明する。図７は、外箱１５に内箱１６を組み込む工程を示す斜視図ある。図８は、外箱１５と内箱１６との間の空間４３に側面用真空断熱材２２を挿入する工程を逐次示す断面図である。図９は、空間４３に液状断熱発泡材３８を充填する工程を示す図である。 A method of manufacturing the refrigerator 10 having the above-described configuration will be described based on FIGS. 7 to 9 and further with reference to the above-mentioned drawings. FIG. 7 is a perspective view showing a step of incorporating the inner box 16 into the outer box 15. FIG. 8 is a sectional view sequentially showing a step of inserting the side surface vacuum heat insulating material 22 into the space 43 between the outer box 15 and the inner box 16. FIG. 9 is a diagram showing a step of filling the space 43 with the liquid heat insulating foam material 38.

先ず、図７の斜視図を参照して、外箱１５の内部に内箱１６を組み込む。ここでは、図４（Ａ）に示した外箱後面板１５１が装着されていない状態の外箱１５に、内箱１６を組み込んでいる。更に、図３（Ｃ）に示したスペーサ３０が取り付けられた側面用真空断熱材２２も用意する。 First, referring to the perspective view of FIG. 7, the inner box 16 is assembled inside the outer box 15. Here, the inner case 16 is incorporated into the outer case 15 in a state where the outer case rear face plate 151 shown in FIG. 4(A) is not mounted. Further, the side surface vacuum heat insulating material 22 to which the spacer 30 shown in FIG. 3C is attached is also prepared.

次に、図８を参照して、側面用真空断熱材２２の組み込みを行う。図８（Ａ）、図８（Ｂ）および図８（Ｃ）は、外箱１５と内箱１６との間の空間４３に側面用真空断熱材２２を挿入する工程を逐次示す断面図である。 Next, referring to FIG. 8, the side vacuum heat insulating material 22 is incorporated. 8A, 8B, and 8C are cross-sectional views sequentially showing the step of inserting the side surface vacuum heat insulating material 22 into the space 43 between the outer box 15 and the inner box 16. ..

図８（Ａ）を参照して、外箱１５の内部に内箱１６を配置すると、外箱１５の外箱側面板１５２と、内箱１６の内箱側面板１６２の間に、空間４３が形成される。空間４３の断面は、左右方向に於ける幅が前方に向かって狭くなるテーパ形状を呈している。 8A, when the inner box 16 is arranged inside the outer box 15, a space 43 is formed between the outer box side plate 152 of the outer box 15 and the inner box side plate 162 of the inner box 16. It is formed. The cross section of the space 43 has a tapered shape in which the width in the left-right direction becomes narrower toward the front.

図８（Ｂ）を参照して、次に、上記した空間４３に側面用真空断熱材２２を挿入する。具体的には、スペーサ３０が設置された側辺を下方にして、側面用真空断熱材２２を空間４３に挿入する。側面用真空断熱材２２の下端を、空間４３の下端まで挿入すると、スペーサ３０は、側面用真空断熱材２２の外側面と、外箱側面板１５２の内側面との間で圧縮される。係る状況は、図４（Ｃ）に示した通りである。 With reference to FIG. 8B, next, the side surface vacuum heat insulating material 22 is inserted into the space 43. Specifically, the side vacuum insulation material 22 is inserted into the space 43 with the side where the spacer 30 is installed facing downward. When the lower end of the side surface vacuum heat insulating material 22 is inserted to the lower end of the space 43, the spacer 30 is compressed between the outer surface of the side surface vacuum heat insulating material 22 and the inner surface of the outer box side surface plate 152. Such a situation is as shown in FIG.

スペーサ３０は、図３（Ａ）に示したように、各角部が面取された略直方体形状である。よって、係る形状のスペーサ３０が取り付けされた側面用真空断熱材２２を、内箱側面板１６２と外箱側面板１５２との間に形成された空間４３に良好に挿入することができる。 As shown in FIG. 3(A), the spacer 30 has a substantially rectangular parallelepiped shape with chamfered corners. Therefore, the side surface vacuum heat insulating material 22 to which the spacer 30 having such a shape is attached can be favorably inserted into the space 43 formed between the inner box side surface plate 162 and the outer box side surface plate 152.

図８（Ｃ）を参照して、側面用真空断熱材２２の挿入工程が終了した後は、後面用真空断熱材２５が貼着された外箱後面板１５１を、外箱側面板１５２の上端に組み込む。 Referring to FIG. 8C, after the insertion process of the side surface vacuum heat insulating material 22 is completed, the outer box rear surface plate 151 to which the rear surface vacuum heat insulating material 25 is attached is attached to the upper end of the outer box side surface plate 152. Built in.

図９を参照して、次に、上記した内箱１６と外箱１５との間に、発泡断熱材２３を発泡充填する。図９（Ａ）は、内箱１６と外箱１５との間に、発泡断熱材２３を発泡充填する充填工程を示す側方断面図である。図９（Ｂ）は、この充填工程を示す図であり、図９（Ａ）の切断面線Ａ−Ａに於ける断面図である。 Referring to FIG. 9, next, the foam insulation material 23 is foam-filled between the inner box 16 and the outer box 15 described above. FIG. 9A is a side sectional view showing a filling step of foam-filling the foam insulation material 23 between the inner box 16 and the outer box 15. FIG. 9B is a diagram showing this filling step and is a cross-sectional view taken along the section line AA of FIG. 9A.

図９（Ａ）を参照して、外箱後面板１５１には、注入孔３６および注入孔３７が形成されている。注入孔３６は液状断熱発泡材３８１を注入するための孔部であり、注入孔３７は液状断熱発泡材３８２を注入するための孔部である。ここでは、貯蔵室の開口が下方を向くように、内箱１６および外箱１５を横臥させた状態で、発泡断熱材２３の発泡充填を行っている。 Referring to FIG. 9(A), injection hole 36 and injection hole 37 are formed in outer case rear plate 151. The injection hole 36 is a hole for injecting the liquid heat insulating foam material 381, and the injection hole 37 is a hole for injecting the liquid heat insulating foam material 382. Here, the foam insulation material 23 is foam-filled with the inner box 16 and the outer box 15 lying down so that the opening of the storage chamber faces downward.

図９（Ａ）に示すように、側面用真空断熱材２２の下面には複数のスペーサ３０が設置されるが、ここでは、紙面上に於いて左方に配置されるスペーサ３０をスペーサ３０３と称し、右方に配置されるスペーサ３０をスペーサ３０４と称する。 As shown in FIG. 9(A), a plurality of spacers 30 are installed on the lower surface of the vacuum heat insulating material 22 for the side surface. Here, the spacer 30 arranged on the left side on the paper surface is referred to as the spacer 303. The spacer 30 arranged on the right side is referred to as a spacer 304.

本工程では、注入孔３６から液状断熱発泡材３８１を注入し、同時に、注入孔３７から液状断熱発泡材３８２を注入する。 In this step, the liquid heat insulating foam material 381 is injected from the injection hole 36, and at the same time, the liquid heat insulation foam material 382 is injected from the injection hole 37.

図９（Ｂ）を参照して、注入孔３６から注入された液状断熱発泡材３８１は、側面用真空断熱材２２と外箱側面板１５２との間の空間４３を経由して、空間４３の前端まで到達する。その後、注入された液状断熱発泡材３８１は、発泡しながら外箱１５と内箱１６との間に充填される。また、側面用真空断熱材２２の前方には空間４７が形成されており、空間４７は液状断熱発泡材３８１が流通する経路となっている。図９（Ａ）では、液状断熱発泡材３８１および液状断熱発泡材３８２が流動する経路を矢印で示しており、最終的には中央の領域４８まで充填が行われる。本工程が終了すれば、図４（Ａ）等に示したように、外箱１５と内箱１６との間に、発泡断熱材２３が充填される。 With reference to FIG. 9(B), the liquid heat insulating foam material 381 injected from the injection hole 36 passes through the space 43 between the side surface vacuum heat insulating material 22 and the outer box side surface plate 152, and then the space 43. Reach the front end. Then, the injected liquid heat insulating foam material 381 is filled between the outer box 15 and the inner box 16 while foaming. A space 47 is formed in front of the side surface vacuum heat insulating material 22, and the space 47 serves as a path through which the liquid heat insulating foam material 381 flows. In FIG. 9A, the paths through which the liquid heat insulating foam material 381 and the liquid heat insulating foam material 382 flow are indicated by arrows, and finally the central region 48 is filled. When this step is completed, as shown in FIG. 4A, the foam insulation material 23 is filled between the outer box 15 and the inner box 16.

図９（Ａ）に示すように、本工程に於いて、注入孔３６とスペーサ３０３との水平距離Ｌ４は２００ｍｍ以上が好適である。ここで、水平距離Ｌ４とは、外箱１５および内箱１６か横臥している状態にて、注入孔３６とスペーサ３０３とが水平方向に於いて離間する距離である。換言すると、水平距離Ｌ４は、注入孔３６の紙面上に於ける右方側端部から、スペーサ３０３の紙面上に於ける左方側端部までの距離である。水平距離Ｌ４をこのように設定することで、液状断熱発泡材３８１がある程度液状の状態で広がり発泡しながらスペーサ３０３に到達するので、液状断熱発泡材３８１は容易にスペーサ３０３を乗り越えて、紙面右方に向かって良好に流動することができる。 As shown in FIG. 9A, in this step, the horizontal distance L4 between the injection hole 36 and the spacer 303 is preferably 200 mm or more. Here, the horizontal distance L4 is the distance between the injection hole 36 and the spacer 303 in the horizontal direction when the outer case 15 and the inner case 16 are lying down. In other words, the horizontal distance L4 is the distance from the right end of the injection hole 36 on the paper surface to the left end of the spacer 303 on the paper surface. By setting the horizontal distance L4 in this way, the liquid heat insulating foam material 381 spreads and foams in a liquid state to some extent and reaches the spacer 303, so that the liquid heat insulating foam material 381 easily gets over the spacer 303 and is on the right side of the drawing. It can flow well towards you.

この水平距離Ｌ４を充分に確保しないと、液状断熱発泡材３８１がスペーサ３０３により堰き止められるため、図９（Ｂ）を参照して、内箱側面板１６２と側面用真空断熱材２２との間に液状断熱発泡材３８１が入り込み、内箱側面板１６２に凹凸が発生してしまう。本実施形態では、水平距離Ｌ４を２００ｍｍ以上確保することにより、内箱側面板１６２に凹凸が発生してしまうことを防止することができる。 If the horizontal distance L4 is not sufficiently secured, the liquid heat insulating foam material 381 is blocked by the spacer 303. Therefore, referring to FIG. 9B, between the inner box side plate 162 and the side vacuum heat insulating material 22. The liquid heat insulating foam material 381 enters the inside of the inner box side plate 162, and the inner side wall 162 of the inner box becomes uneven. In the present embodiment, by ensuring the horizontal distance L4 of 200 mm or more, it is possible to prevent the inner box side plate 162 from being uneven.

また、スペーサ３０３の高さＬ５は、５０ｍｍ以下が好適であり、４０ｍｍ以下が更に好適である。このようにすることで、液状断熱発泡材３８１がスペーサ３０３を乗り越えて容易に流動することができる。 The height L5 of the spacer 303 is preferably 50 mm or less, and more preferably 40 mm or less. By doing so, the liquid insulating foam material 381 can easily flow over the spacer 303.

スペーサ３０４は、注入孔３７よりも、紙面右方側に配置されている。係る構成とすることで、注入孔３７から注入された液状断熱発泡材３８２を、スペーサ３０４で堰き止め、領域４８に向かって流動させることが出来る。よって、領域４８に充分に液状断熱発泡材３８２を行き渡らせることができる。スペーサ３０４の高さＬ６は、スペーサ３０３と同様に、５０ｍｍ以下が好適であり、４０ｍｍ以下が更に好適である。 The spacer 304 is arranged on the right side of the drawing with respect to the injection hole 37. With such a configuration, the liquid heat insulating foam material 382 injected from the injection hole 37 can be blocked by the spacer 304 and flow toward the region 48. Therefore, the liquid insulating foam material 382 can be sufficiently spread over the region 48. As with the spacer 303, the height L6 of the spacer 304 is preferably 50 mm or less, and more preferably 40 mm or less.

更に、スペーサ３０３およびスペーサ３０４は、図３（Ａ）に示したように、各角部が面取された略直方体形状である。これにより、スペーサ３０３およびスペーサ３０４が、液状断熱発泡材３８１および液状断熱発泡材３８２の流動を阻害することが無い。 Further, the spacers 303 and 304 have a substantially rectangular parallelepiped shape with chamfered corners, as shown in FIG. As a result, the spacers 303 and 304 do not hinder the flow of the liquid heat insulating foam material 381 and the liquid heat insulating foam material 382.

上記した工程により、内箱１６と外箱１５との間に、液状断熱発泡材３８１および液状断熱発泡材３８２が行き渡ることで、図４（Ａ）に示すように発泡断熱材２３が充填される。その後、図１に示すように、断熱扉３４、断熱扉３５および各構成機器を断熱箱体１１に取り付けることで冷蔵庫１０が製造される。 By the steps described above, the liquid heat insulating foam material 381 and the liquid heat insulating foam material 382 are spread between the inner box 16 and the outer box 15, so that the foam heat insulating material 23 is filled as shown in FIG. 4(A). .. Then, as shown in FIG. 1, the refrigerator 10 is manufactured by attaching the heat insulation door 34, the heat insulation door 35, and each component to the heat insulation box 11.

本実施形態では、側面用真空断熱材２２の破損を抑止しつつ、側面用真空断熱材２２を断熱箱体１１に組み込むことができる。側面用真空断熱材２２は、真空包装されたガラス等の繊維から成る。よって、製造工程において側面用真空断熱材２２が鋭利な部材に接触すると、側面用真空断熱材２２の真空包装が破けてしまい、側面用真空断熱材２２が破損する恐れがある。本実施形態では、側面用真空断熱材２２を空間４３に挿入するのみで、側面用真空断熱材２２の設置が完了することから、側面用真空断熱材２２が他の部材に接触して破損してしまう恐れが小さい。 In the present embodiment, the side surface vacuum heat insulating material 22 can be incorporated into the heat insulating box 11 while suppressing damage to the side surface vacuum heat insulating material 22. The side vacuum heat insulating material 22 is made of vacuum-wrapped fiber such as glass. Therefore, when the side surface vacuum heat insulating material 22 comes into contact with a sharp member in the manufacturing process, the vacuum packaging of the side surface vacuum heat insulating material 22 may be broken and the side surface vacuum heat insulating material 22 may be damaged. In this embodiment, since the installation of the side surface vacuum heat insulating material 22 is completed only by inserting the side surface vacuum heat insulating material 22 into the space 43, the side surface vacuum heat insulating material 22 comes into contact with other members and is damaged. There is little fear that it will happen.

また、本実施形態では、図８（Ｂ）を参照して、側面用真空断熱材２２の組み込みを行う際には、作業員は側面用真空断熱材２２の上下方向に於ける位置合わせを行うのみで良い。よって、側面用真空断熱材２２を内箱側面板１６２に貼着するための設備を必要とせず、生産性を向上すると共に、製造コストを低減することが出来る。 Further, in the present embodiment, referring to FIG. 8B, when the side surface vacuum heat insulating material 22 is incorporated, the worker performs vertical position alignment of the side surface vacuum heat insulating material 22. Only good. Therefore, the equipment for sticking the side surface vacuum heat insulating material 22 to the inner box side surface plate 162 is not required, and the productivity can be improved and the manufacturing cost can be reduced.

更に、図８（Ｂ）に示すように、本実施形態では、外箱側面板１５２と内箱側面板１６２との間に形成される空間４３に、側面用真空断熱材２２を上方から挿入している。このようにすることで、側面用真空断熱材２２の下端に配置されたスペーサ３０が、側面用真空断熱材２２と外箱側面板１５２との間で圧縮され、側面用真空断熱材２２の下端が内箱側面板１６２の外面に押しつけられる。よって、特殊な専用設備を用いることなく、空間４３の内部に於いて、側面用真空断熱材２２を容易に内箱１６の側に配置することができる。 Further, as shown in FIG. 8B, in this embodiment, the side surface vacuum heat insulating material 22 is inserted from above into the space 43 formed between the outer box side plate 152 and the inner box side plate 162. ing. By doing so, the spacer 30 arranged at the lower end of the side surface vacuum heat insulating material 22 is compressed between the side surface vacuum heat insulating material 22 and the outer casing side surface plate 152, and the lower end of the side surface vacuum heat insulating material 22 is compressed. Are pressed against the outer surface of the inner case side plate 162. Therefore, the side surface vacuum heat insulating material 22 can be easily arranged on the inner box 16 side in the space 43 without using special dedicated equipment.

更にまた、本実施形態では、液状断熱発泡材３８１を発泡充填する工程に於いて、スペーサ３０３の位置および大きさを、液状断熱発泡材３８１の流動を妨げない範囲としている。よって、液状断熱発泡材３８１を良好に流動させることかでき、断熱箱体１１の内部に未充填領域が形成されることを抑止することができる。 Furthermore, in the present embodiment, in the step of foam-filling the liquid heat-insulating foam material 381, the position and size of the spacer 303 are set within a range that does not hinder the flow of the liquid heat-insulating foam material 381. Therefore, the liquid heat insulating foam material 381 can be satisfactorily fluidized, and formation of an unfilled region inside the heat insulating box 11 can be suppressed.

更に本実施形態では、図９（Ｂ）を参照して、側面用真空断熱材２２が内箱側面板１６２の側に配置されていることから、側面用真空断熱材２２と外箱側面板１５２との間には十分な空間４３が確保されている。よって、発泡充填工程に於いては、空間４３に安定的に液状断熱発泡材３８１を発泡充填することができる。 Further, in the present embodiment, referring to FIG. 9B, since the side surface vacuum heat insulating material 22 is arranged on the side of the inner box side surface plate 162, the side surface vacuum heat insulating material 22 and the outer box side surface plate 152. A sufficient space 43 is secured between and. Therefore, in the foam filling process, the space 43 can be stably foam-filled with the liquid heat insulating foam material 381.

本発明は、上記実施形態に限定されるものではなく、その他、本発明の要旨を逸脱しない範囲で、種々の変更実施が可能である。 The present invention is not limited to the above-described embodiment, and other various modifications can be made without departing from the scope of the present invention.

１０ 冷蔵庫
１１ 断熱箱体
１２ 冷蔵室
１３ 冷凍室
１４ 機械室
１５ 外箱
１５１ 外箱後面板
１５２ 外箱側面板
１５３ 外箱上面板
１５４ 溝
１５５ 端部
１６ 内箱
１６１ 内箱後面板
１６２ 内箱側面板
１６３ 内箱上面板
１６４ 内箱下面板
１６５ 冷蔵室内箱
１６６ 冷凍室内箱
１７ 断熱材
１８ 冷媒配管
１９ ダンパ
２０ 除霜ヒータ
２２ 側面用真空断熱材
２３ 発泡断熱材
２５ 後面用真空断熱材
２６ 蒸発器
２７ 冷却室
２８ 送風機
２９ 圧縮機
３０ スペーサ
３０１ 第１接着面
３０２ 第２接着面
３０３ スペーサ
３０４ スペーサ
３１ 接着テープ
３２ アルミテープ
３３ 断熱区画壁
２４ 上面用真空断熱材
３４ 断熱扉
３５ 断熱扉
３６ 注入孔
３７ 注入孔
３８ 液状断熱発泡材
３８１ 液状断熱発泡材
３８２ 液状断熱発泡材
４０ 端部
４１ 端部
４２ 間隙
４３ 空間
４４ 外箱接合部
４５ 内箱接合部
４６ 端部
４７ 空間
４８ 領域
４９ レール部
１００ 冷蔵庫
１０１ 外箱
１０２ 内箱
１０３ 発泡断熱材
１０４ 真空断熱材
１０５ 溝
１０６ パイプ
１０７ 貯蔵室 10 Refrigerator 11 Insulation Box 12 Refrigerator 13 Freezer 14 Machine Room 15 Outer Box 151 Outer Box Rear Plate 152 Outer Box Side Plate 153 Outer Box Top Plate 154 Groove 155 End 16 Inner Box 161 Inner Box Rear Plate 162 Inner Box Side Face plate 163 Inner box upper plate 164 Inner box lower plate 165 Refrigerating indoor box 166 Freezing indoor box 17 Heat insulating material 18 Refrigerant piping 19 Damper 20 Defrost heater 22 Side vacuum heat insulating material 23 Foam heat insulating material 25 Rear surface vacuum heat insulating material 26 Evaporator 27 Cooling Chamber 28 Blower 29 Compressor 30 Spacer 301 First Adhesive Surface 302 Second Adhesive Surface 303 Spacer 304 Spacer 31 Adhesive Tape 32 Aluminum Tape 33 Insulation Partition Wall 24 Vacuum Insulation Material 34 for Upper Surface Insulation Door 35 Insulation Door 36 Injection Hole 37 Injection hole 38 Liquid heat-insulating foam material 381 Liquid heat-insulating foam material 382 Liquid heat-insulating foam material 40 End portion 41 End portion 42 Gap 43 Space 44 Outer box joint portion 45 Inner box joint portion 46 End portion 47 Space 48 Area 49 Rail portion 100 Refrigerator 101 Outer box 102 Inner box 103 Foam insulation 104 Vacuum insulation 105 Groove 106 Pipe 107 Storage room

Claims (7)

内部に貯蔵室が形成される断熱箱体と、前記貯蔵室の開口を閉鎖する断熱扉と、を備え、
前記断熱箱体は、前記断熱箱体の外面を形成する外箱と、前記外箱の内部に配設された内箱と、前記外箱と前記内箱との間に配置された断熱材と、を有し、
前記外箱は、前記断熱箱体の幅方向に沿って伸びる外箱後面板と、前記断熱箱体の奥行方向に沿って伸びる外箱側面板と、を有し、
前記内箱は、前記断熱箱体の幅方向に沿って伸びる内箱後面板と、前記断熱箱体の奥行方向に沿って伸びる内箱側面板と、を有し、
前記断熱材は、前記内箱側面板の外面の近傍に配設された側面用真空断熱材と、前記外箱と前記内箱との間に発泡充填された発泡断熱材と、を有し、
前記側面用真空断熱材の一端側にはスペーサが取り付けられ、前記スペーサは前記側面用真空断熱材と前記外箱側面板との間に配置されることを特徴とする冷蔵庫。 An insulating box body in which a storage chamber is formed, and a heat insulating door that closes the opening of the storage chamber,
The heat insulation box body is an outer box forming an outer surface of the heat insulation box body, an inner box arranged inside the outer box, and a heat insulating material arranged between the outer box and the inner box. Has,
The outer box has an outer box rear face plate extending along the width direction of the heat insulating box body, and an outer box side plate extending along the depth direction of the heat insulating box body,
The inner box has an inner box rear face plate extending along the width direction of the heat insulating box body, and an inner box side plate extending along the depth direction of the heat insulating box body,
The heat insulating material has a side surface vacuum heat insulating material disposed in the vicinity of the outer surface of the inner box side plate, and a foamed heat insulating material foam-filled between the outer box and the inner box,
The refrigerator is characterized in that a spacer is attached to one end side of the side surface vacuum heat insulating material, and the spacer is disposed between the side surface vacuum heat insulating material and the outer box side surface plate. 前記外箱後面板と、前記内箱後面板との間に、後面用真空断熱材を配設し、
幅方向に於いて、前記後面用真空断熱材の端部を、前記側面用真空断熱材の後端よりも外側まで配置することを特徴とする請求項１に記載の冷蔵庫。 Between the outer casing rear face plate and the inner casing rear face plate, a rear surface vacuum heat insulating material is disposed,
The refrigerator according to claim 1, wherein in the width direction, an end portion of the rear-side vacuum heat-insulating material is arranged further outside than a rear end of the side-surface vacuum heat-insulating material. 前記スペーサは、前記側面用真空断熱材の外側主面に接着される第１接着面と、前記側面用真空断熱材の端面に接着される第２接着面と、を有することを特徴とする請求項１または請求項２に記載の冷蔵庫。 The spacer has a first bonding surface bonded to an outer main surface of the side surface vacuum heat insulating material and a second bonding surface bonded to an end surface of the side surface vacuum heat insulating material. The refrigerator according to claim 1 or 2. 前記スペーサは、前記貯蔵室の前記開口の側に配置される前記側面用真空断熱材の側辺に取り付けられることを特徴とする請求項１から請求項３の何れかに記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 3, wherein the spacer is attached to a side edge of the side surface vacuum heat insulating material disposed on the opening side of the storage chamber. 前記側面用真空断熱材は、接着材を用いることなく、前記内箱側面板の直近に配置されることを特徴とする請求項１から請求項４の何れかに記載の冷蔵庫。 The refrigerator according to any one of claims 1 to 4, wherein the vacuum heat insulating material for side surfaces is arranged in the immediate vicinity of the side plate of the inner box without using an adhesive material. 外箱側面板を有する外箱と、内箱側面板を有する内箱と、長手方向の側面側にスペーサが取り付けられた側面用真空断熱材と、を準備する工程と、
前記内箱を前記外箱の内部に配置した後に、前記外箱側面板と前記内箱側面板との間の空間に前記側面用真空断熱材を挿入し、前記空間の前端側に前記スペーサを配置することで、前記内箱側面板の側に前記側面用真空断熱材を配設する工程と、
前記外箱と前記内箱との前記空間に発泡断熱材を充填する工程と、を具備することを特徴とする冷蔵庫の製造方法。 A step of preparing an outer box having an outer box side plate, an inner box having an inner box side plate, and a side vacuum heat insulating material having a spacer attached to a side surface in the longitudinal direction;
After the inner box is placed inside the outer box, the side surface vacuum heat insulating material is inserted into the space between the outer box side plate and the inner box side plate, and the spacer is provided on the front end side of the space. By disposing, a step of disposing the side surface vacuum heat insulating material on the side of the inner box side surface plate,
And a step of filling the space between the outer box and the inner box with a foamed heat insulating material. 前記発泡断熱材を充填する工程では、前記外箱および前記内箱を横臥させた状態で、前記外箱の外箱後面板に形成した注入孔から、前記外箱と前記内箱との前記空間に、液状断熱発泡材を注入し、
水平方向に於いて、前記スペーサを前記注入孔から２００ｍｍ以上離間させることを特徴とする請求項６に記載の冷蔵庫の製造方法。
In the step of filling the foamed heat insulating material, in a state in which the outer box and the inner box are lying down, from the injection hole formed in the outer box rear face plate of the outer box, the space between the outer box and the inner box. Inject the liquid insulation foam into
The method for manufacturing a refrigerator according to claim 6, wherein the spacer is spaced from the injection hole by 200 mm or more in the horizontal direction.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6297484U (en) * 1985-12-11 1987-06-22
JP2003014368A (en) * 2001-06-28 2003-01-15 Matsushita Refrig Co Ltd Refrigerator
JP2010276309A (en) * 2009-05-29 2010-12-09 Hitachi Appliances Inc Heat insulation box and refrigerator equipped with the same
JP2011002033A (en) * 2009-06-18 2011-01-06 Hitachi Appliances Inc Vacuum heat insulating material, and heat insulating box and refrigerator using the same
JP2012087992A (en) * 2010-10-20 2012-05-10 Mitsubishi Electric Corp Refrigerator-freezer
JP2014052124A (en) * 2012-09-06 2014-03-20 Toshiba Corp Heat insulating housing
JP2014119230A (en) * 2012-12-19 2014-06-30 Sharp Corp Refrigerator
JP2018009730A (en) * 2016-07-13 2018-01-18 三菱電機株式会社 refrigerator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5738207B2 (en) * 2012-01-27 2015-06-17 三菱電機株式会社 Compressor, refrigerator, equipment
EP2940412B1 (en) * 2012-12-25 2018-07-18 Toshiba Lifestyle Products & Services Corporation Method for manufacturing heat insulating box for refrigerator, and the refrigerator
WO2014103773A1 (en) * 2012-12-25 2014-07-03 株式会社 東芝 Refrigerator, heat insulating box for refrigerator, and method for manufacturing heat insulating box for refrigerator
WO2016162955A1 (en) * 2015-04-07 2016-10-13 三菱電機株式会社 Vacuum insulation material, and refrigerator
KR102442071B1 (en) * 2015-10-19 2022-09-13 삼성전자주식회사 Refrigerator amd producing method of same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6297484U (en) * 1985-12-11 1987-06-22
JP2003014368A (en) * 2001-06-28 2003-01-15 Matsushita Refrig Co Ltd Refrigerator
JP2010276309A (en) * 2009-05-29 2010-12-09 Hitachi Appliances Inc Heat insulation box and refrigerator equipped with the same
JP2011002033A (en) * 2009-06-18 2011-01-06 Hitachi Appliances Inc Vacuum heat insulating material, and heat insulating box and refrigerator using the same
JP2012087992A (en) * 2010-10-20 2012-05-10 Mitsubishi Electric Corp Refrigerator-freezer
JP2014052124A (en) * 2012-09-06 2014-03-20 Toshiba Corp Heat insulating housing
JP2014119230A (en) * 2012-12-19 2014-06-30 Sharp Corp Refrigerator
JP2018009730A (en) * 2016-07-13 2018-01-18 三菱電機株式会社 refrigerator

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