JP2006118639A - Vacuum heat insulating material, refrigerator, heat/cold retaining container and electric water heater - Google Patents

Vacuum heat insulating material, refrigerator, heat/cold retaining container and electric water heater Download PDF

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JP2006118639A
JP2006118639A JP2004307940A JP2004307940A JP2006118639A JP 2006118639 A JP2006118639 A JP 2006118639A JP 2004307940 A JP2004307940 A JP 2004307940A JP 2004307940 A JP2004307940 A JP 2004307940A JP 2006118639 A JP2006118639 A JP 2006118639A
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heat insulating
hole
insulating material
core material
vacuum heat
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Keisuke Tsunetsugu
啓介 常次
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies 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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Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem on a vacuum heat insulating material which has a through-hole and gas barrier covering materials sealed together along the outer periphery of the through-hole, that a pin hole or crack occurs in the covering material because of excessive elongation of the film of the covering material when sealed, resulting in quality degradation of the vacuum heat insulating material due to lower gas barrier performance of the covering material. <P>SOLUTION: The vacuum heat insulating material 1 comprises a core material and the covering material covering the core material and depressurizing itself. It has a core material through-hole, a heat welded portion smaller than a core material through-hole outermost diameter similar to the core material through-hole, and a predetermined hole smaller than the heat welded portion. A value obtained by subtracting a heat welded portion outermost diameter 10 similar to the core material through-hole from an outermost diameter 9 of the core material through-hole is made 3.5 times or more the thickness of the core material after depressurized. This suppresses the occurrence of the pin hole or crack due to the elongation of the facing material and secures superior quality. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、家電製品、住宅等の断熱材に適用可能な真空断熱材と、その真空断熱材を適用した冷蔵庫と保温保冷容器と電気湯沸かし器に関するものである。   The present invention relates to a vacuum heat insulating material that can be applied to heat insulating materials for home appliances, houses, and the like, and a refrigerator, a heat insulating container, and an electric water heater to which the vacuum heat insulating material is applied.

近年、地球環境保護の視点から省エネルギーや省資源に対して、様々な取り組みがなされている。   In recent years, various efforts have been made to save energy and resources from the viewpoint of protecting the global environment.

省エネルギーの観点では、多孔質構造の芯材をアルミ箔ラミネートフィルム製の外被材で覆って内部を減圧封止する真空断熱材が提案され、近年、工業的に使用され始めている（例えば、特許文献１参照）。この真空断熱材は、従来硬質ウレタンフォームの３倍の断熱性能である０．００５Ｗ／ｍＫの熱伝導率を有し、省エネルギー向け断熱材として寄与している。   From the viewpoint of energy saving, a vacuum heat insulating material in which a core material having a porous structure is covered with an outer cover material made of an aluminum foil laminate film and the inside is sealed under reduced pressure has been proposed, and has recently begun to be used industrially (for example, patents) Reference 1). This vacuum heat insulating material has a thermal conductivity of 0.005 W / mK, which is three times the heat insulating performance of conventional rigid urethane foam, and contributes as a heat insulating material for energy saving.

従来、真空断熱材は製品の断熱したい部分、つまり部品の壁面等に設置され使用されることが多い。冷蔵庫を例に挙げてみると、鋼板製の外箱と硬質樹脂製の内箱間に発泡断熱材と共に埋設させ、断熱性能の向上に貢献している。   Conventionally, a vacuum heat insulating material is often used by being installed on a part of a product where heat insulation is desired, that is, a wall surface of a part. Taking a refrigerator as an example, it is buried between the outer box made of steel plate and the inner box made of hard resin together with the foam heat insulating material, which contributes to the improvement of the heat insulating performance.

しかし、例えば冷媒配管や排水管や配線、その他機器・部品等が設置されている部分について、真空断熱材は使用されていなかった。なぜなら、従来使用されている平板状の真空断熱材は後加工ができないため、設置する部分に制約があり、配管や配線、その他機器等が設置されている部分については使用できないなどの問題点があった。   However, no vacuum heat insulating material has been used for parts where, for example, refrigerant pipes, drain pipes, wiring, and other devices and parts are installed. This is because the flat-plate vacuum insulation material used in the past cannot be post-processed, so there are restrictions on the parts to be installed, and there are problems such as being unable to use the parts where piping, wiring, and other equipment are installed. there were.

このような配管や配線、その他機器等が設置されている部分については、孔あけ加工等後加工が出来る従来からの断熱材（例えば発泡ポリウレタン成型品や珪酸カルシウム成型品等）を使用することが考えられるが、真空断熱材と比較すると断熱性能が劣り、その断熱性能の差より発生する経済的損失は長期間使用される冷蔵庫にとっては膨大なものとなる。   For parts where such piping, wiring, and other equipment are installed, it is possible to use conventional heat insulating materials (for example, foamed polyurethane molded products or calcium silicate molded products) that can be post-processed such as drilling. Although it is conceivable, the heat insulation performance is inferior to that of the vacuum heat insulating material, and the economic loss caused by the difference in the heat insulation performance is enormous for a refrigerator used for a long time.

また、別の解決法として、大小さまざまな真空断熱材を組み合わせて配管や配線、その他機器等が設置されている部分に配置することも考えられるが、組み合わせた接合面に隙間が生じ必要としている断熱性能が得られない、また貼り付け工数増加、コスト高の原因となる。   Another possible solution is to combine various vacuum heat insulating materials, large and small, and place them on the part where piping, wiring, and other equipment are installed, but there is a need to create a gap in the combined joint surface. Heat insulation performance cannot be obtained, and the number of pasting steps increases and the cost increases.

また、上記問題点を解決すべく、真空断熱材に貫通孔を有しているものも開示されている。真空断熱材が貫通孔を有し、貫通孔の外周部に沿ってガスバリアー性外被材同士をシールしたものである（例えば、特許文献２、特許文献３参照）。   Moreover, what has a through-hole in the vacuum heat insulating material is also disclosed in order to solve the said problem. A vacuum heat insulating material has a through-hole, and gas-barrier jacket materials are sealed along the outer peripheral part of a through-hole (for example, refer patent document 2, patent document 3).

また、稜線およびコーナー部にテーパー（面取り）加工をすることにより、外被材の皺の発生を抑制しガスバリアー性の低下を防ぐ真空断熱材がある。（例えば、特許文献４参照）。
特公平２−５４４７９号公報 特開昭５８−７８０８２号公報 特開平８−３０３６８６号公報 特開昭６１−１１６２７５号公報 In addition, there is a vacuum heat insulating material that suppresses the generation of wrinkles in the outer cover material and prevents the gas barrier property from being lowered by tapering (chamfering) the ridgeline and the corner portion. (For example, refer to Patent Document 4).
Japanese Patent Publication No. 2-54479 JP 58-78082 A JP-A-8-303686 JP 61-116275 A

しかしながら、上記従来の真空断熱材に貫通孔を有し、貫通孔外周部に沿ってガスバリアー性外被材同士をシールしたものでは、外被材をシールする際、外被材のフィルムの過剰な伸びのために外被材にピンホールやクラックが発生してしまい、外被材のガスバリア性の低下による真空断熱材の品質低下が問題点となっていた。   However, in the case where the conventional vacuum heat insulating material has a through hole and the gas barrier outer covering materials are sealed along the outer periphery of the through hole, when the outer covering material is sealed, the film of the outer covering material is excessive. As a result of the elongation, pinholes and cracks are generated in the jacket material, and the quality of the vacuum heat insulating material is degraded due to a decrease in gas barrier properties of the jacket material.

また、このとき外被材の過剰な伸びのために貫通孔稜線付近に皺が発生してしまい、皺部分のこすれや衝撃、衝突での外被材ガスバリア性の低下による真空断熱材の品質低下が問題点となっていた。   Also, at this time, due to excessive elongation of the jacket material, soot is generated in the vicinity of the ridgeline of the through hole, and the quality of the vacuum heat insulating material is deteriorated due to rubbing of the soot part, impact, and deterioration of the jacket gas barrier property due to collision Was a problem.

また、稜線およびコーナー部にテーパー（面取り）加工をした場合、外被材の皺の発生を抑制しガスバリアー性の低下を防ぐことができるが、芯材にテーパー加工するための手間がかかり、コスト高の原因となっていた。   In addition, when taper (chamfering) processing is performed on the ridgeline and corner portion, it is possible to suppress the generation of wrinkles on the jacket material and prevent deterioration of gas barrier properties, but it takes time and effort to taper the core material, It was the cause of the high cost.

本発明は、上記従来の課題を解決するもので、貫通孔を有し低コストで品質を確保することができる真空断熱材と、その真空断熱材を適用した冷蔵庫と保温保冷容器と電気湯沸かし器を提供することを目的とする。   The present invention solves the above-described conventional problems, and includes a vacuum heat insulating material that has a through-hole and can ensure quality at low cost, a refrigerator, a heat insulating container, and an electric water heater to which the vacuum heat insulating material is applied. The purpose is to provide.

上記目的を達成するために、本発明の真空断熱材は、芯材と、前記芯材を覆い内部を減圧した外被材とからなり、芯材貫通孔と、芯材貫通孔と相似形の芯材貫通孔最外径より小さい熱溶着部と、前記熱溶着部より小さい所定の孔を有し、芯材貫通孔の最外径から芯材貫通孔と相似形の熱溶着部最外径を差し引いた値を、減圧後の芯材厚みの３．５倍以上にしたのである。   In order to achieve the above object, the vacuum heat insulating material of the present invention comprises a core material and a jacket material covering the core material and depressurizing the inside, and has a core material through hole and a shape similar to the core material through hole. A heat-welded portion smaller than the outermost diameter of the core material through-hole and a predetermined hole smaller than the heat-welded portion, and the outermost diameter of the heat-welded portion similar to the core material through-hole from the outermost diameter of the core material through-hole The value obtained by subtracting was made 3.5 times or more the core material thickness after decompression.

これによって、外被材の伸びによるピンホールやクラック発生を効果的に抑制し、外被材のガスバリア性の低下による真空断熱材の品質低下を効果的に抑えることができる。   Thereby, pinholes and cracks due to the elongation of the jacket material can be effectively suppressed, and the deterioration of the quality of the vacuum heat insulating material due to the gas barrier property of the jacket material can be effectively suppressed.

また、本発明の冷蔵庫は、本発明の真空断熱材を、前記真空断熱材の貫通孔内に内箱と外箱間の発泡断熱材の充填空間に入り込む部品が位置するように、前記内箱と前記外箱との間に配置し、前記内箱と前記外箱との間における前記真空断熱材の周囲の空間に発泡断熱材を充填したのである。   Further, the refrigerator of the present invention includes the inner box so that the vacuum heat insulating material of the present invention is located in a through hole of the vacuum heat insulating material so that a part that enters the filling space of the foam heat insulating material between the inner box and the outer box is located. Between the inner box and the outer box, and the space around the vacuum heat insulating material between the inner box and the outer box is filled with foam heat insulating material.

これによって、配管や配線、その他機器・部品等が設置されている部分についても、真空断熱材を適応することができ、断熱性能の向上、しいては優れた経済性を備えた冷蔵庫を提供できる。   As a result, vacuum insulation can be applied to pipes, wiring, and other parts where equipment / parts are installed, improving the heat insulation performance and thus providing a refrigerator with excellent economic efficiency. .

また、本発明の保温保冷容器は、本発明の真空断熱材を、前記真空断熱材の貫通孔内に内箱と外箱との間に入り込む部品が位置するように、前記内箱と前記外箱との間に配置したのである。   Further, the heat insulation and cold storage container of the present invention includes the inner box and the outer box so that a part that enters the vacuum heat insulating material of the present invention between the inner box and the outer box is located in the through hole of the vacuum heat insulating material. It was placed between the box.

これによって、水抜き部・部品等が設置されている部分についても、真空断熱材を適応することができ、優れた断熱性能を備えた保温保冷容器を提供することができる。   Thereby, a vacuum heat insulating material can be applied also to the part in which the drain part, parts, etc. are installed, and a heat insulation cold container provided with excellent heat insulation performance can be provided.

また、本発明の電気湯沸かし器は、本発明の真空断熱材を、前記真空断熱材の貫通孔内に部品が位置するように、上面を開口した貯水用容器の外側面もしくは、前記貯水用容器の開口部を開閉する蓋部に配置したのである。   In addition, the electric water heater of the present invention comprises the vacuum heat insulating material of the present invention, the outer surface of the water storage container having an upper surface opened so that the parts are located in the through holes of the vacuum heat insulating material, or the water storage container. It is arranged on the lid that opens and closes the opening.

これによって、真空断熱材を配線や出湯経路、または蓋部についても適応することができ、優れた断熱性能を備えた電気湯沸かし器を提供することができる。   Accordingly, the vacuum heat insulating material can be applied to the wiring, the hot water supply path, or the lid portion, and an electric water heater with excellent heat insulating performance can be provided.

本発明の真空断熱材は、外被材の伸びによるピンホールやクラック発生を効果的に抑制し、外被材のガスバリア性の低下による真空断熱材の品質低下を効果的に抑えることができる。   The vacuum heat insulating material of the present invention can effectively suppress the occurrence of pinholes and cracks due to the elongation of the jacket material, and can effectively suppress the deterioration of the quality of the vacuum heat insulating material due to the decrease in gas barrier properties of the jacket material.

本発明の冷蔵庫は、配管や配線、その他機器・部品等が設置されている部分についても、真空断熱材を適応することができ、断熱性能の向上、しいては優れた経済性を備えた冷蔵庫を提供できる。   The refrigerator of the present invention can apply a vacuum heat insulating material to a part where piping, wiring, and other equipment / parts are installed, improving the heat insulating performance, and having excellent economic efficiency. Can provide.

本発明の保温保冷容器は、水抜き部・部品等が設置されている部分についても、真空断熱材を適応することができ、優れた断熱性能を備えた保温保冷容器を提供することができる。   The heat insulation cold container of this invention can adapt a vacuum heat insulating material also about the part in which the drain part, components, etc. are installed, and can provide the heat insulation cold insulation container provided with the outstanding heat insulation performance.

本発明の電気湯沸かし器は、真空断熱材を配線や出湯経路、または蓋部についても、適応することができ、優れた断熱性能を備えた電気湯沸かし器を提供することができる。   The electric water heater of the present invention can adapt the vacuum heat insulating material to the wiring, the hot water path, or the lid, and can provide an electric water heater with excellent heat insulating performance.

本発明の請求項１に記載の真空断熱材の発明は、芯材と、前記芯材を覆い内部を減圧した外被材とからなり、芯材貫通孔と、芯材貫通孔と相似形の芯材貫通孔最外径より小さい熱溶着部と、前記熱溶着部より小さい所定の孔を有し、芯材貫通孔の最外径から芯材貫通孔と相似形の熱溶着部最外径を差し引いた値を、減圧後の芯材厚みの３．５倍以上にしてものであり、芯材貫通孔の最外径は芯材貫通孔と相似形の熱溶着部最外径を差し引いた値と、芯材厚みは芯材厚みの３．５倍以上とすることにより、外被材の伸びによるピンホールやクラック発生を効果的に抑制し、外被材のガスバリア性の低下による真空断熱材の品質低下を効果的に抑えることができる。   The invention of the vacuum heat insulating material according to claim 1 of the present invention is composed of a core material and a jacket material that covers the core material and depressurizes the inside, and has a core material through hole and a shape similar to the core material through hole. A heat-welded portion smaller than the outermost diameter of the core material through-hole and a predetermined hole smaller than the heat-welded portion, and the outermost diameter of the heat-welded portion similar to the core material through-hole from the outermost diameter of the core material through-hole The value obtained by subtracting the core material thickness after depressurization is 3.5 times or more of the core material thickness after decompression, and the outermost diameter of the core material through hole is the same as that of the core material through hole. By setting the value and the core material thickness to 3.5 times or more of the core material thickness, pinholes and cracks due to the elongation of the jacket material are effectively suppressed, and vacuum insulation is achieved by reducing the gas barrier properties of the jacket material. The deterioration of the quality of the material can be effectively suppressed.

請求項２に記載の真空断熱材の発明は、請求項１に記載の発明における芯材に、無機繊維集合体を成型したものを使用するものであり、芯材に円孔を設けた後の型くずれがないため優れた生産性を確保すると同時に、優れた断熱性能を維持することができる。   Invention of the vacuum heat insulating material of Claim 2 uses what shape | molded the inorganic fiber aggregate | assembly to the core material in invention of Claim 1, and after providing a circular hole in the core material Since there is no shape loss, excellent productivity can be secured and at the same time excellent heat insulation performance can be maintained.

請求項３に記載の冷蔵庫の発明は、請求項１または２に記載の発明の真空断熱材を、前記真空断熱材の貫通孔内に内箱と外箱間の発泡断熱材の充填空間に入り込む部品が位置するように、前記内箱と前記外箱との間に配置し、前記内箱と前記外箱との間における前記真空断熱材の周囲の空間に発泡断熱材を充填したものであり、配管や配線、その他機器・部品等が設置されている部分についても、真空断熱材を適応することができ、断熱性能の向上、しいては優れた経済性を備えた冷蔵庫を提供できる。   According to a third aspect of the refrigerator, the vacuum heat insulating material according to the first or second aspect of the invention enters the filling space of the foam heat insulating material between the inner box and the outer box in the through hole of the vacuum heat insulating material. It is arranged between the inner box and the outer box so that the parts are located, and the space around the vacuum heat insulating material between the inner box and the outer box is filled with foam heat insulating material. In addition, a vacuum heat insulating material can be applied to a portion where piping, wiring, and other equipment / parts are installed, so that a refrigerator with improved heat insulating performance and excellent economy can be provided.

請求項４に記載の保温保冷容器の発明は、請求項１または２に記載の発明の真空断熱材を、前記真空断熱材の貫通孔内に内箱と外箱との間に入り込む部品が位置するように、前記内箱と前記外箱との間に配置したものであり、水抜き部・部品等が設置されている部分についても、真空断熱材を適応することができ、優れた断熱性能を備えた保温保冷容器を提供することができる。   According to a fourth aspect of the present invention, there is provided a thermal insulation container according to the first or second aspect, wherein the vacuum heat insulating material according to the first or second aspect is provided with a part that enters between the inner box and the outer box in the through hole of the vacuum heat insulating material. As described above, it is arranged between the inner box and the outer box, and a vacuum heat insulating material can be applied to a portion where a drainage part, parts, etc. are installed, and excellent heat insulating performance It is possible to provide a heat and cold container provided with

請求項５に記載の電気湯沸かし器の発明は、請求項１または２に記載の発明の真空断熱材を、前記真空断熱材の貫通孔内に部品が位置するように、上面を開口した貯水用容器の外側面もしくは、前記貯水用容器の開口部を開閉する蓋部に配置した電気湯沸かし器とすることにより、真空断熱材を配線や出湯経路、または蓋部についても適応することができ、優れた断熱性能を備えた電気湯沸かし器を提供することができる。   The electric water heater according to claim 5 is the water storage container having the upper surface opened so that the vacuum insulating material according to claim 1 or 2 is located in the through hole of the vacuum insulating material. By using an electric water heater disposed on the outer surface of the container or on the lid that opens and closes the opening of the water storage container, the vacuum heat insulating material can be applied to the wiring, the hot water path, or the lid, and has excellent heat insulation. An electric water heater with performance can be provided.

（実施の形態１）
図１は、本発明の実施の形態１における真空断熱材の断面図である。真空断熱材１は、無機繊維集合体を成型した、対向する２平面を有する板状の芯材２と、ガスバリア性のラミネートフィルムからなる外被材３とから構成されている。１ａは芯材に孔加工が施され芯材厚みが存在しない部分を示している。 (Embodiment 1)
FIG. 1 is a cross-sectional view of a vacuum heat insulating material according to Embodiment 1 of the present invention. The vacuum heat insulating material 1 is composed of a plate-like core material 2 having two opposing flat surfaces formed by molding an inorganic fiber aggregate, and an outer covering material 3 made of a gas barrier laminate film. 1a shows a portion where the core material is perforated and the core material thickness does not exist.

図２は、同実施の形態における真空断熱材の平面図である。袋体開口部の熱溶着部４と芯材厚みが存在する部分５と芯材２に孔加工が施され芯材厚みが存在しない部分６とその内側の円形の熱溶着部７と更にその内側のフィルムを切り抜いた孔部分８とから構成されている。   FIG. 2 is a plan view of the vacuum heat insulating material in the same embodiment. The heat welding part 4 of the bag body opening part, the part 5 where the core material thickness exists, the part 6 where the core material 2 is perforated and the core material thickness does not exist, the circular heat welding part 7 inside thereof, and the inner side thereof And a hole portion 8 from which the film is cut out.

この真空断熱材１の作製の一例を説明する。厚さ５ｍｍのシート状無機繊維成形体を４枚積層してなる芯材２に貫通孔を成形した後、１４０℃で１時間乾燥する。   An example of production of the vacuum heat insulating material 1 will be described. After forming a through-hole in the core material 2 formed by laminating four sheet-like inorganic fiber molded bodies having a thickness of 5 mm, it is dried at 140 ° C. for 1 hour.

その後、ガスバリア性のラミネートフィルムからなる袋体の外被材３中に貫通孔を成形し乾燥させた芯材２を挿入し、内部を１０Ｐａまで減圧し、図２の袋体開口部の熱溶着部４を熱溶着封止する。その後貫通孔より内側の円形熱溶着部７を熱溶着し、更にその内側の所定の貫通孔８を設けることにより成形している。   After that, the core material 2 in which through holes are formed and dried is inserted into the jacket material 3 of the bag body made of a gas barrier laminate film, the inside is decompressed to 10 Pa, and the bag body opening in FIG. The part 4 is heat-sealed and sealed. Thereafter, the circular heat welding portion 7 inside the through hole is thermally welded, and further, a predetermined through hole 8 is provided inside the circular heat welding portion 7.

図３には芯材の貫通孔の直径９と円形熱溶着部の直径１０を示している。   FIG. 3 shows the diameter 9 of the through hole of the core material and the diameter 10 of the circular heat welded portion.

以上のように構成された真空断熱材について、以下その動作、作用を説明する。   About the vacuum heat insulating material comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

まず、（表１）に減圧後の芯材厚みを一定として、芯材貫通孔の最外径９から芯材貫通孔より小さい熱溶着部の最外径（一定）１０を差し引いた値を変化させた時の真空断熱材の経時的な内圧上昇量を示す。   First, the value obtained by subtracting the outermost diameter (constant) 10 of the thermal welding portion smaller than the core material through hole from the outermost diameter 9 of the core material through hole is changed in (Table 1) with the core material thickness after decompression being constant. It shows the amount of increase in internal pressure over time of the vacuum heat insulating material when it is allowed to enter.

Figure 2006118639
（表１）から判るように、芯材貫通孔の最外径９から芯材貫通孔より小さい熱溶着部の最外径（一定）１０を差し引いた値が、減圧後の芯材厚みの３．５倍以上になると、真空断熱材の経時的な内圧上昇量を抑えることができている。
Figure 2006118639
 As can be seen from (Table 1), the value obtained by subtracting the outermost diameter (constant) 10 of the heat-welded portion smaller than the core material through hole from the outermost diameter 9 of the core material through hole is 3 of the core material thickness after decompression. When it is 5 times or more, the amount of increase in internal pressure over time of the vacuum heat insulating material can be suppressed.

従って、芯材貫通孔の最外径９から芯材貫通孔より小さい熱溶着部の最外径（一定）１０を差し引いた値が、減圧後の芯材厚みの３．５倍以上にすると外被材の伸びによるピンホールやクラック発生を抑制し、外被材のガスバリア性の低下による真空断熱材の品質低下を抑えることができる。   Therefore, if the value obtained by subtracting the outermost diameter (constant) 10 of the heat-welded portion smaller than the core material through-hole from the outermost diameter 9 of the core material through-hole is 3.5 times the core material thickness after decompression, Generation of pinholes and cracks due to elongation of the covering material can be suppressed, and deterioration of the quality of the vacuum heat insulating material due to deterioration of the gas barrier property of the covering material can be suppressed.

また、芯材２が無機繊維成形体であるので、孔加工後の型くずれがないため優れた生産性を確保すると同時に優れた断熱性能を維持することもできる。   Moreover, since the core material 2 is an inorganic fiber molded body, since there is no shape loss after drilling, excellent productivity can be secured and at the same time excellent heat insulation performance can be maintained.

以上のように、本実施の形態においては、芯材２と、芯材２を覆い内部を減圧した外被材３とからなり、芯材貫通孔と、芯材貫通孔と相似形の芯材貫通孔最外径より小さい熱溶着部７と、熱溶着部７より小さい所定の孔を有し、芯材貫通孔の最外径から芯材貫通孔と相似形の熱溶着部最外径を差し引いた値が、減圧後の芯材厚みの３．５倍以上とし、芯材２に無機繊維成形体を使用することにより、外被材３の伸びによるピンホールやクラック発生を抑制し、芯材孔加工後の型くずれも抑制するため、優れた品質を保持し、尚且つ、優れた生産性およびコストメリットを確保することができる真空断熱材１を提供することができる。   As described above, in the present embodiment, the core material 2 and the jacket material 3 covering the core material 2 and depressurizing the inside are formed, and the core material is similar to the core material through hole and the core material through hole. It has a heat weld portion 7 smaller than the outermost diameter of the through hole and a predetermined hole smaller than the heat weld portion 7, and the outer diameter of the heat weld portion similar to the core material through hole is determined from the outermost diameter of the core material through hole. By subtracting 3.5 times or more of the core material thickness after decompression and using an inorganic fiber molded body for the core material 2, pinholes and cracks due to the elongation of the jacket material 3 are suppressed, and the core Since the mold deformation after the material hole processing is also suppressed, it is possible to provide the vacuum heat insulating material 1 that can maintain excellent quality and can secure excellent productivity and cost merit.

また、本実施の形態では芯材貫通孔とその内側の熱溶着部７を円形としたが、特に円形に限らず、四角形や三角形等、他の形にしても良い。   Moreover, in this Embodiment, although the core material through-hole and the heat welding part 7 of the inside were made circular, it may not be restricted especially circular but may be made into other shapes, such as a rectangle and a triangle.

（実施の形態２）
図４は、本発明の実施の形態２における冷蔵庫の断面図である。本実施の形態の冷蔵庫１１は、冷蔵庫本体を構成する断熱箱体１１ａと断熱箱体１１ａの前面開口部を開閉する断熱扉１１ｂとからなり、実施の形態１の真空断熱材１を、真空断熱材１の貫通孔内に、断熱箱体１１ａのＡＢＳ樹脂からなる内箱１２と鉄板製の外箱１３との間の発泡断熱材１４の充填空間に入り込む排水管１５等の部品が位置するように、内箱１２と外箱１３との間に配置し、内箱１２と外箱１３との間における真空断熱材１の周囲の空間にシクロペンタンを発泡剤とする発泡断熱材１４を充填したものである。 (Embodiment 2)
FIG. 4 is a cross-sectional view of the refrigerator in the second embodiment of the present invention. The refrigerator 11 according to the present embodiment includes a heat insulating box 11a constituting the refrigerator main body and a heat insulating door 11b that opens and closes the front opening of the heat insulating box 11a, and the vacuum heat insulating material 1 according to the first embodiment is vacuum insulated. In the through hole of the material 1, parts such as a drain pipe 15 entering the filling space of the foamed heat insulating material 14 between the inner box 12 made of ABS resin of the heat insulating box 11 a and the outer box 13 made of iron plate are positioned. The space between the inner box 12 and the outer box 13 between the inner box 12 and the outer box 13 and the space around the vacuum heat insulating material 1 between the inner box 12 and the outer box 13 was filled with a foam heat insulating material 14 using cyclopentane as a foaming agent. Is.

また、冷蔵庫１１は、断熱箱体１１ａと断熱扉１１ｂとで貯蔵室１６を構成しており、貯蔵室１６の奥には冷却器１７が配置され、断熱箱体１１ａの背面下部に設けられる機械室１８に圧縮機１９が配置され、圧縮機１９と冷却器１７等から構成される冷凍システムにより貯蔵室１６が冷却される。   Moreover, the refrigerator 11 comprises the storage chamber 16 by the heat insulation box 11a and the heat insulation door 11b, the cooler 17 is arrange | positioned at the back of the storage chamber 16, and the machine provided in the back lower part of the heat insulation box 11a. A compressor 19 is disposed in the chamber 18, and the storage chamber 16 is cooled by a refrigeration system including the compressor 19 and a cooler 17.

以上のような構成からなる冷蔵庫１１は、一般的に外箱１３と内箱１２によって形成される空間に、冷媒配管や排水管、配線、その他機器・部品等が設置されているが、真空断熱材１を適用させ得ることにより、冷蔵庫１１の真空断熱材１による被覆率を上げ、断熱箱体１１ａとしての断熱性能を向上させることができる。   The refrigerator 11 having the above-described configuration is generally provided with refrigerant piping, drainage pipes, wiring, and other devices / parts in a space formed by the outer box 13 and the inner box 12. By being able to apply the material 1, the coverage with the vacuum heat insulating material 1 of the refrigerator 11 can be raised, and the heat insulation performance as the heat insulation box 11a can be improved.

しかるに、庫内を所定の温度に維持しようとする冷凍システムの負荷が減り、省エネルギー化を達成した冷蔵庫を提供することができる。   However, it is possible to provide a refrigerator that achieves energy saving by reducing the load on the refrigeration system that tries to maintain the interior at a predetermined temperature.

更に、本実施の形態の真空断熱材１は、優れた断熱性能を有するため、省エネルギーを追求しない場合には、断熱壁の薄壁化が可能となるため、冷蔵庫の省スペース化、あるいは冷蔵庫の庫内容積向上が達成できる。   Furthermore, since the vacuum heat insulating material 1 of the present embodiment has excellent heat insulating performance, it is possible to reduce the thickness of the heat insulating wall when energy saving is not pursued. An improvement in the internal volume can be achieved.

以上のように本実施の形態の冷蔵庫１１は、実施の形態１の真空断熱材１を、真空断熱材１の貫通孔１ａ内に内箱１２と外箱１３との間の発泡断熱材１４の充填空間に入り込む排水管１６などの部品が位置するように、内箱１２と外箱１３との間に配置し、内箱１２と外箱１３との間における真空断熱材１の周囲の空間に発泡断熱材１４を充填するものであり、配管や配線、その他機器・部品等が設置されている部分についても真空断熱材１を適応することができ、断熱性能の向上、しいては優れた経済性を備えた冷蔵庫を提供できる。   As described above, the refrigerator 11 according to the present embodiment includes the vacuum heat insulating material 1 according to the first embodiment in the foamed heat insulating material 14 between the inner box 12 and the outer box 13 in the through hole 1 a of the vacuum heat insulating material 1. It arrange | positions between the inner box 12 and the outer box 13 so that components, such as the drain pipe 16 entering the filling space, may be located, and in the space around the vacuum heat insulating material 1 between the inner box 12 and the outer box 13. The foam insulation 14 is filled, and the vacuum insulation 1 can be applied to pipes, wiring, and other parts where equipment / parts are installed, improving the insulation performance, and excellent economy. A refrigerator with characteristics can be provided.

更に、真空断熱材１の芯材は無機繊維であることから、芯材は不燃性であるため、冷蔵庫安全性の面からも優れており、冷媒として炭化水素系化合物を適用した場合は、特に、効果的である。   Furthermore, since the core material of the vacuum heat insulating material 1 is an inorganic fiber, the core material is nonflammable, which is also excellent in terms of refrigerator safety. Especially when a hydrocarbon-based compound is applied as a refrigerant, Is effective.

（実施の形態３）
図５は、本発明の実施の形態３における保温保冷容器の断面図である。 (Embodiment 3)
FIG. 5 is a cross-sectional view of a heat and cold insulation container according to Embodiment 3 of the present invention.

本実施の形態の保温保冷容器は、外箱として外容器２０と、内箱として内容器２１と、内容器２１を封止するための蓋２２と、外部に水を出水する水排出部２３と、運搬用の取手部２４からなり、外容器２０と内容器２１との間に実施の形態１の真空断熱材１を適応することにより、従来使用されている平板状の真空断熱材が適応できなかった外部に水を出水する水排出部２３や、運搬用の取手部２４に適応することができる。   The heat insulation and cold storage container of the present embodiment includes an outer container 20 as an outer box, an inner container 21 as an inner box, a lid 22 for sealing the inner container 21, and a water discharge unit 23 for discharging water to the outside. By adopting the vacuum heat insulating material 1 according to the first embodiment between the outer container 20 and the inner container 21, the flat plate-shaped vacuum heat insulating material conventionally used can be applied. The present invention can be applied to the water discharge portion 23 for discharging water to the outside and the handle portion 24 for transportation.

しいては、保温保冷容器の真空断熱材１による被覆率を上げ、断熱箱体としての断熱性能を向上させることができる。   Therefore, the coverage by the vacuum heat insulating material 1 of a heat insulation cold container can be raised, and the heat insulation performance as a heat insulation box can be improved.

更に、本実施の形態の真空断熱材１は、優れた断熱性能を有するため、省エネルギーを追求しない場合には、断熱壁の薄壁化が可能となるため、保温保冷容器のコンパクト化、あるいは保温保冷容器の容器容積向上が達成できる。   Furthermore, since the vacuum heat insulating material 1 of the present embodiment has excellent heat insulating performance, it is possible to make the heat insulating wall thin when not pursuing energy saving. An increase in the container volume of the cold storage container can be achieved.

以上のように本実施の形態の保温保冷容器は、実施の形態１の真空断熱材１を、真空断熱材１の貫通孔１ａ内に水排出部２３（内箱として内容器２１と外箱として外容器２０との間に入り込む部品）が位置し、真空断熱材１の貫通孔１ａ内に取手部２４（内箱として内容器２１と外箱として外容器２０との間に入り込む部品）が位置するように、内箱として内容器２１と外箱として外容器２０との間に配置するものであり、水抜き部（水排出部２３）・部品（取手部２４）等が設置されている部分についても真空断熱材１を適応することができ、優れた断熱性能を備えた保温保冷容器を提供することができる。   As described above, the heat insulation and cold container of the present embodiment includes the vacuum heat insulating material 1 of the first embodiment in the water discharge portion 23 (the inner container 21 as the inner box and the outer box in the through hole 1a of the vacuum heat insulating material 1). The part that enters between the outer container 20 and the handle 24 (the part that enters between the inner container 21 as the inner box and the outer container 20 as the outer box) is located in the through hole 1a of the vacuum heat insulating material 1. As shown in the figure, it is arranged between the inner container 21 as an inner box and the outer container 20 as an outer box, and a portion where a draining part (water discharge part 23), parts (handle part 24), etc. are installed. The vacuum heat insulating material 1 can be applied to the above, and it is possible to provide a heat and cold insulation container having excellent heat insulation performance.

更に、真空断熱材１の芯材２は無機繊維であることから、芯材は不燃性であるため、安全性の面からも優れている。   Furthermore, since the core material 2 of the vacuum heat insulating material 1 is an inorganic fiber, the core material is nonflammable, which is excellent in terms of safety.

（実施の形態４）
図６は、本発明の実施の形態４における電気湯沸かし器の断面図である。本実施の形態の電気湯沸かし器は、外箱としての外容器２５と、貯水用容器２６と、貯水用容器２６の水を加熱するヒータ２７と、外部に水を出水する出湯経路２８と、蓋部２９と、蓋部２９に設置されている水蒸気抜き孔部３０と、蓋部２９、もしくは貯水用容器２６底部に設けた実施の形態１に記載の真空断熱材１とから構成されるものである。 (Embodiment 4)
FIG. 6 is a cross-sectional view of an electric water heater according to Embodiment 4 of the present invention. The electric water heater of the present embodiment includes an outer container 25 as an outer box, a water storage container 26, a heater 27 that heats water in the water storage container 26, a hot water discharge path 28 that discharges water to the outside, and a lid portion. 29, the water vapor vent hole 30 installed in the lid 29, and the vacuum heat insulating material 1 described in the first embodiment provided in the lid 29 or the bottom of the water storage container 26. .

貯水用容器２６外周に配置した平板状の真空断熱材は、予め、円筒状の貯水用容器２６の形状に添わすようにロール加工を行い適用している。   The flat vacuum heat insulating material disposed on the outer periphery of the water storage container 26 is applied in advance by roll processing so as to follow the shape of the cylindrical water storage container 26.

以上のような構成からなる電気湯沸かし器において、真空断熱材１を適応することにより、従来真空断熱材が適応できなかった外部に水を出水する出湯経路部２８や、蓋部２９に設置されている水蒸気抜き孔部３０等に適応することができる。   In the electric water heater having the above-described configuration, by applying the vacuum heat insulating material 1, it is installed in the hot water supply passage portion 28 for discharging water to the outside where the conventional vacuum heat insulating material cannot be applied, and the lid portion 29. It can be applied to the water vapor vent hole 30 or the like.

しいては、電気湯沸し器の真空断熱材による被覆率を上げ、断熱容器としての断熱性能を向上させることができる。そのため、貯水用容器２６の水の温度低下を防止し、貯水用容器２６の水を加熱するヒータ２７の運転時間を短縮することができ、消費電力量の低減を達成した電気湯沸し器を提供することができる。   Therefore, the coverage with the vacuum heat insulating material of the electric water heater can be increased, and the heat insulating performance as a heat insulating container can be improved. Therefore, it is possible to prevent the temperature of the water in the water storage container 26 from being lowered, to shorten the operation time of the heater 27 for heating the water in the water storage container 26, and to provide an electric water heater that achieves a reduction in power consumption. be able to.

更に、真空断熱材は、優れた断熱性能を有するため、省エネルギーを追求しない場合には、断熱壁の薄壁化が可能となるため、電気湯沸し器のコンパクト化、あるいは電気湯沸し器の貯水用容器容積向上が達成できる。   Furthermore, since the vacuum heat insulating material has excellent heat insulating performance, it is possible to reduce the thickness of the heat insulating wall when energy saving is not pursued. Therefore, the electric water heater can be made compact or the electric water heater water storage container. Volume improvement can be achieved.

本実施の形態の電気湯沸かし器は、実施の形態１の真空断熱材１を、真空断熱材１の貫通孔１ａ内に出湯経路部２８や水蒸気抜き孔部３０の部品が位置するように、上面を開口した貯水用容器２６の外側面（底面）と貯水用容器２６の開口部を開閉する蓋部２８に配置するものであり、配線や出湯経路部２８、または蓋部２９についても適応することができ、優れた断熱性能を備えた電気湯沸かし器を提供することができる。   The electric water heater of the present embodiment has the upper surface of the vacuum heat insulating material 1 of the first embodiment so that the parts of the hot water path portion 28 and the steam vent hole portion 30 are located in the through hole 1a of the vacuum heat insulating material 1. It is disposed on the lid 28 that opens and closes the outer surface (bottom surface) of the opened water storage container 26 and the opening of the water storage container 26, and it can be applied to the wiring, the hot water path portion 28, or the lid portion 29. And an electric water heater with excellent heat insulation performance can be provided.

更に、真空断熱材１の芯材２は無機繊維であることから、芯材は不燃性であるため、電気湯沸し器安全性の面からも優れている。   Furthermore, since the core material 2 of the vacuum heat insulating material 1 is an inorganic fiber, the core material is nonflammable, which is excellent in terms of safety of the electric water heater.

以上のように、本発明にかかる真空断熱材は、経時的な劣化を抑えて孔あけ加工等後加工を施すことができるため、配管や配線、その他突起部が存在する様々な家電製品や住宅用の断熱材等の用途にも適用できる。   As described above, since the vacuum heat insulating material according to the present invention can be subjected to post-processing such as drilling while suppressing deterioration over time, various home appliances and houses in which pipes, wiring, and other protrusions exist It can also be used for applications such as thermal insulation.

本発明の実施の形態１における真空断熱材の断面図Sectional drawing of the vacuum heat insulating material in Embodiment 1 of this invention 本発明の実施の形態１における真空断熱材の平面図The top view of the vacuum heat insulating material in Embodiment 1 of this invention 本発明の実施の形態１における真空断熱材の平面図The top view of the vacuum heat insulating material in Embodiment 1 of this invention 本発明の実施の形態２における冷蔵庫の概略断面図Schematic sectional view of the refrigerator in the second embodiment of the present invention. 本発明の実施の形態３における保温保冷容器の概略断面図Schematic cross-sectional view of a heat and cold insulation container in Embodiment 3 of the present invention 本発明の実施の形態４における電気湯沸し器の概略断面図Schematic sectional view of an electric water heater in Embodiment 4 of the present invention

符号の説明Explanation of symbols

１ 真空断熱材
２ 芯材
３ 外被材
７ 熱溶着部
１１ 冷蔵庫
１２ 内箱
１３ 外箱
１４ 発泡断熱材
２６ 貯水用容器
２９ 蓋部 DESCRIPTION OF SYMBOLS 1 Vacuum heat insulating material 2 Core material 3 Cover material 7 Heat welding part 11 Refrigerator 12 Inner box 13 Outer box 14 Foam heat insulating material 26 Water storage container 29 Cover part

Claims (5)

芯材と、前記芯材を覆い内部を減圧した外被材とからなり、芯材貫通孔と、芯材貫通孔と相似形の芯材貫通孔最外径より小さい熱溶着部と、前記熱溶着部より小さい所定の孔を有し、芯材貫通孔の最外径から芯材貫通孔と相似形の熱溶着部最外径を差し引いた値が、減圧後の芯材厚みの３．５倍以上であることを特徴とした真空断熱材。   A core material, and a jacket material covering the core material and depressurizing the inside. The core material through hole, a heat welding portion smaller than the outermost diameter of the core material through hole similar to the core material through hole, and the heat A value obtained by subtracting the outermost diameter of the heat welded portion similar to the core material through hole from the outermost diameter of the core material through hole having a predetermined hole smaller than the welded portion is 3.5 of the core material thickness after decompression. A vacuum insulation material characterized by being more than doubled. 芯材が、無機繊維集合体を成形したものである請求項１に記載の真空断熱材。   The vacuum heat insulating material according to claim 1, wherein the core material is formed by molding an inorganic fiber aggregate. 請求項１または２に記載の真空断熱材を、前記真空断熱材の貫通孔内に内箱と外箱間の発泡断熱材の充填空間に入り込む部品が位置するように、前記内箱と前記外箱との間に配置し、前記内箱と前記外箱との間における前記真空断熱材の周囲の空間に発泡断熱材を充填した冷蔵庫。   The vacuum insulating material according to claim 1 or 2, wherein the inner box and the outer wall of the vacuum heat insulating material are placed in a through hole of the vacuum heat insulating material so that a part that enters the filling space of the foam heat insulating material between the inner box and the outer box is located. The refrigerator which arrange | positions between boxes and filled the space around the said vacuum heat insulating material between the said inner box and the said outer box with the foam heat insulating material. 請求項１または２に記載の真空断熱材を、前記真空断熱材の貫通孔内に内箱と外箱との間に入り込む部品が位置するように、前記内箱と前記外箱との間に配置した保温保冷容器。   The vacuum heat insulating material according to claim 1 or 2, wherein the part that enters between the inner box and the outer box is positioned in the through hole of the vacuum heat insulating material between the inner box and the outer box. Arranged thermal insulation container. 請求項１または２に記載の真空断熱材を、前記真空断熱材の貫通孔内に部品が位置するように、上面を開口した貯水用容器の外側面もしくは、前記貯水用容器の開口部を開閉する蓋部に配置した電気湯沸かし器。   The vacuum heat insulating material according to claim 1, wherein the outer surface of the water storage container having an upper surface opened or the opening of the water storage container is opened and closed so that a part is positioned in the through hole of the vacuum heat insulating material. Electric water heater placed on the lid.
JP2004307940A 2004-10-22 2004-10-22 Vacuum heat insulating material, refrigerator, heat/cold retaining container and electric water heater Withdrawn JP2006118639A (en)

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WO2014007461A1 (en) * 2012-07-03 2014-01-09 (주)엘지하우시스 Vacuum insulation panel with improved rupturing and preparation method thereof
KR101489039B1 (en) 2012-06-26 2015-02-03 (주)엘지하우시스 Vacuum heat insulation material including through hole and manufacturing thereof
WO2016038911A1 (en) * 2014-09-09 2016-03-17 三菱電機株式会社 Vacuum heat insulating material, method for manufacturing vacuum heat insulating material, installation structure for vacuum insulating material, and hot-water storage tank with vacuum heat insulating material
WO2017022241A1 (en) * 2015-08-04 2017-02-09 パナソニックＩｐマネジメント株式会社 Insulating sheet, and seatback-equipped seat and cold weather garment employing same
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WO2018157468A1 (en) * 2017-02-28 2018-09-07 芜湖美的厨卫电器制造有限公司 Method for manufacturing insulation profile
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JP2008289944A (en) * 2008-09-10 2008-12-04 Toshiba Home Technology Corp Rice cooker
KR101489039B1 (en) 2012-06-26 2015-02-03 (주)엘지하우시스 Vacuum heat insulation material including through hole and manufacturing thereof
WO2014007461A1 (en) * 2012-07-03 2014-01-09 (주)엘지하우시스 Vacuum insulation panel with improved rupturing and preparation method thereof
CN104428575A (en) * 2012-07-03 2015-03-18 乐金华奥斯有限公司 Vacuum insulation panel with improved rupturing and preparation method thereof
US9523459B2 (en) 2012-07-03 2016-12-20 Lg Hausys, Ltd. Vacuum insulation panel with improved rupturing and preparation method thereof
JP2013015315A (en) * 2012-09-19 2013-01-24 Panasonic Healthcare Co Ltd Freezing device
US10203143B2 (en) 2013-02-12 2019-02-12 Doubleday Acquisitions Llc Wrinkle free geometric opening in a vacuum insulated panel
EP3287278A1 (en) * 2013-02-12 2018-02-28 DoubleDay Acquisitions, LLC Wrinkle free geometric opening in a vacuum insulated panel
US10234188B2 (en) 2013-02-12 2019-03-19 Doubleday Acquisitions Llc Wrinkle free geometric opening in a vacuum insulated panel
WO2016038911A1 (en) * 2014-09-09 2016-03-17 三菱電機株式会社 Vacuum heat insulating material, method for manufacturing vacuum heat insulating material, installation structure for vacuum insulating material, and hot-water storage tank with vacuum heat insulating material
JPWO2016038911A1 (en) * 2014-09-09 2017-04-27 三菱電機株式会社 Vacuum heat insulating material, manufacturing method of vacuum heat insulating material, installation structure of vacuum heat insulating material, and hot water storage tank equipped with vacuum heat insulating material
WO2017022241A1 (en) * 2015-08-04 2017-02-09 パナソニックＩｐマネジメント株式会社 Insulating sheet, and seatback-equipped seat and cold weather garment employing same
JPWO2017022241A1 (en) * 2015-08-04 2018-05-24 パナソニックＩｐマネジメント株式会社 Insulation sheet, seat with backrest using the same, and winter clothes
WO2018157468A1 (en) * 2017-02-28 2018-09-07 芜湖美的厨卫电器制造有限公司 Method for manufacturing insulation profile
CN108943912A (en) * 2017-05-25 2018-12-07 张跃 A kind of soldering sandwich composite board exhaust structure

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