JP5555611B2 - Insulated hot water storage system - Google Patents

Insulated hot water storage system Download PDF

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JP5555611B2
JP5555611B2 JP2010263339A JP2010263339A JP5555611B2 JP 5555611 B2 JP5555611 B2 JP 5555611B2 JP 2010263339 A JP2010263339 A JP 2010263339A JP 2010263339 A JP2010263339 A JP 2010263339A JP 5555611 B2 JP5555611 B2 JP 5555611B2
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heat insulating
insulating member
hot water
water storage
storage tank
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JP2012112605A (en
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要次郎 梅田
英朗 小川
聡 近廻
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Rinnai Corp
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Description

本発明は、断熱式貯湯装置に関する。   The present invention relates to an adiabatic hot water storage device.

ヒートポンプやガス給湯器などで加熱した温水を貯湯タンクに貯湯しておき、貯湯しておいた温水を必要時に必要箇所に供給する給湯技術が知られている。貯湯タンクを断熱部材で覆うことによって、貯湯タンクに貯湯している温水の温度が低下することを防止する技術が知られている。また発泡性断熱部材よりも断熱性能が高い真空断熱部材の存在が知られている。真空断熱部材は、２枚のフィルムの間に多孔性の芯材を挟み込み、挟み込んだ芯材の周囲を一巡する範囲において２枚のフィルムを溶着し、芯材の存在範囲を真空状態に封止したものである。真空断熱部材は、比較的に剛性が高く、柔軟性に欠ける。   There is known a hot water supply technology in which hot water heated by a heat pump or a gas water heater is stored in a hot water storage tank, and the stored hot water is supplied to a necessary place when necessary. A technique for preventing the temperature of hot water stored in a hot water storage tank from decreasing by covering the hot water storage tank with a heat insulating member is known. Moreover, existence of the vacuum heat insulating member whose heat insulating performance is higher than a foaming heat insulating member is known. The vacuum heat insulating member sandwiches a porous core material between two films, welds two films in a range that goes around the core material sandwiched, and seals the existence range of the core material in a vacuum state It is a thing. The vacuum heat insulating member is relatively high in rigidity and lacks flexibility.

特許文献１に、貯湯タンクを真空断熱部材で覆い、真空断熱部材を発泡性断熱部材で覆う技術が開示されている。真空断熱部材は柔軟性に欠け、薄肉の発泡性断熱部材で覆っても真空断熱部材を貯湯タンクに密着させることができない。発泡性断熱部材の方が外側に変形し、真空断熱部材と貯湯タンクの間に間隙が残ってしまう。そこで、特許文献１の技術では、真空断熱部材にスリットを形成し、湾曲しやすくしている。スリットが形成されていない汎用の真空断熱部材を発泡性断熱部材で覆って湾曲させるためには、厚肉で強度の高い発泡性断熱部材が必要となり、断熱式貯湯装置の外形寸法が大きくなってしまう。   Patent Document 1 discloses a technique in which a hot water storage tank is covered with a vacuum heat insulating member and the vacuum heat insulating member is covered with a foamable heat insulating member. The vacuum heat insulating member lacks flexibility, and the vacuum heat insulating member cannot be brought into close contact with the hot water storage tank even if it is covered with a thin foam heat insulating member. The foamable heat insulating member is deformed outward, and a gap remains between the vacuum heat insulating member and the hot water storage tank. Therefore, in the technique of Patent Document 1, a slit is formed in the vacuum heat insulating member to facilitate bending. In order to cover and curve a general-purpose vacuum heat insulating member with no slit formed with a foam heat insulating member, a thick and high strength foam heat insulating member is required, and the outer dimensions of the heat insulating hot water storage device are increased. End up.

特許文献２には、貯湯タンクを真空断熱部材で覆い、真空断熱部材をゴムチューブのような収縮性部材で覆うことによって、真空断熱部材を貯湯タンクに圧接する技術が開示されている。   Patent Document 2 discloses a technique in which a hot water storage tank is covered with a vacuum heat insulating member, and the vacuum heat insulating member is covered with a shrinkable member such as a rubber tube to press the vacuum heat insulating member against the hot water storage tank.

特開２００８−３９２８２号公報JP 2008-39282 A 特開２００８−２９２０５０号公報JP 2008-292050 A

特許文献１の技術によると、湾曲しやすくするためにスリットを形成した真空断熱部材を特別に製造する必要が生じる。すなわち、あらかじめ芯材にスリットを設けておく等、特別に設計した真空断熱部材を製造する必要が生じる。特許文献１の技術は、汎用性に欠け、コストアップとなる。
特許文献２の技術によると、別途にゴムチューブのような収縮性部材が必要となり、部品点数が増加し、コストアップとなる。
本発明では、汎用の真空断熱部材を発泡性断熱部材で覆うことによって（収縮性部材等の他の部品を使用しないで）、真空断熱部材を貯湯タンクに密着させる技術を提供する。 According to the technique of Patent Document 1, it is necessary to specially manufacture a vacuum heat insulating member in which a slit is formed to facilitate bending. That is, it is necessary to manufacture a specially designed vacuum heat insulating member such as providing a slit in the core in advance. The technique of Patent Document 1 lacks versatility and increases costs.
According to the technique of Patent Document 2, a shrinkable member such as a rubber tube is required separately, which increases the number of parts and increases costs.
In this invention, the technique which makes a vacuum heat insulation member closely_contact | adhere to a hot water storage tank is provided by covering a general-purpose vacuum heat insulation member with a foam heat insulation member (without using other components, such as a shrinkable member).

本発明の断熱式貯湯装置は、貯湯タンクと、貯湯タンクの少なくとも一部を覆う真空断熱部材と、真空断熱部材の全域を覆う発泡性外側断熱部材を備えている。発泡性外側断熱部材の内面に、真空断熱部材を局所的に押圧し、押圧された範囲の真空断熱部材を貯湯タンクに密着させる凸部群が形成されている。
発泡性外側断熱部材の内面に凸部群を形成すると、凸部群によって真空断熱部材が局所的に押圧されるために押圧力が集中し、押圧された範囲の真空断熱部材は貯湯タンクに密着する。少なくとも凸部群の形成箇所では真空断熱部材を貯湯タンクに押付けることができる。
貯湯タンクは多くの場合に単純形状であり、真空断熱部材が複数個所で貯湯タンクに密着すると、真空断熱部材の全体が貯湯タンクに馴染む形状となる。 The heat insulation type hot water storage apparatus of the present invention includes a hot water storage tank, a vacuum heat insulating member that covers at least a part of the hot water storage tank, and a foamable outer heat insulating member that covers the entire area of the vacuum heat insulating member. On the inner surface of the foamable outer heat insulating member, a convex group is formed that presses the vacuum heat insulating member locally and closely contacts the vacuum heat insulating member in the pressed range to the hot water storage tank.
When a convex portion group is formed on the inner surface of the foamable outer heat insulating member, the vacuum heat insulating member is locally pressed by the convex portion group, so that the pressing force is concentrated, and the pressed vacuum insulating member is in close contact with the hot water storage tank. To do. The vacuum heat insulating member can be pressed against the hot water storage tank at least at the location where the convex group is formed.
The hot water storage tank has a simple shape in many cases, and when the vacuum heat insulating member is in close contact with the hot water storage tank at a plurality of locations, the entire vacuum heat insulating member has a shape that fits into the hot water storage tank.

貯湯タンクが略円柱状である場合、略円柱状の貯湯タンクの左側を覆う左側の発泡性外側断熱部材と略円柱状の貯湯タンクの右側を覆う右側の発泡性外側断熱部材を用意し、左側の発泡性外側断熱部材の端縁と右側の発泡性外側断熱部材の端縁に係合形状を形成し、両者が係合すると左側の発泡性外側断熱部材と右側の発泡性外側断熱部材が真空断熱部材と貯湯タンクを包みこんで真空断熱部材を貯湯タンクに密着させるものであることが好ましい。この場合、略円柱状の貯湯タンクの周方向において分散している複数個所に凸部群が形成されていることが好ましい。周方向の複数個所で真空断熱部材が貯湯タンクに密着すると、真空断熱部材の全体が貯湯タンクによく馴染む形状となる。 When the hot water storage tank has a substantially cylindrical shape, prepare a left foamable outer heat insulating member that covers the left side of the substantially cylindrical hot water storage tank and a right foamable outer heat insulating member that covers the right side of the substantially cylindrical hot water tank. An engagement shape is formed at the edge of the foamable outer heat insulating member and the edge of the right foamable outer heat insulating member, and when both are engaged, the left foamable outer heat insulating member and the right foamable outer heat insulating member are vacuumed. It is preferable that the heat insulating member and the hot water storage tank are wrapped so that the vacuum heat insulating member is in close contact with the hot water storage tank. In this case, it is preferable that convex groups are formed at a plurality of locations dispersed in the circumferential direction of the substantially cylindrical hot water storage tank . When the vacuum heat insulating member is in close contact with the hot water storage tank at a plurality of locations in the circumferential direction, the entire vacuum heat insulating member has a shape that is well adapted to the hot water storage tank.

凸部群が周方向において複数個所に分散して形成されている場合、隣接する２箇所の凸部と凸部の間隔が、貯湯タンクの周長の１/２以下であることが好ましい。１/２周以下の間隔で真空断熱部材が貯湯タンクに密着すると、真空断熱部材の全体が貯湯タンクによく倣う形状となる。   When the convex portion group is formed in a plurality of locations in the circumferential direction, the interval between the two adjacent convex portions and the convex portion is preferably 1/2 or less of the circumferential length of the hot water storage tank. When the vacuum heat insulating member comes into close contact with the hot water storage tank at intervals of 1/2 or less, the entire vacuum heat insulating member has a shape that closely follows the hot water storage tank.

貯湯タンクが略円柱状である場合、凸部群が軸方向において複数個所に分散して形成されていることも好ましい。貯湯タンクが略円柱状である場合、軸方向の複数個所で真空断熱部材が貯湯タンクに密着すると、真空断熱部材の全体が貯湯タンクに馴染む形状となる。   When the hot water storage tank has a substantially cylindrical shape, it is also preferable that the convex group is formed in a plurality of locations in the axial direction. When the hot water storage tank has a substantially cylindrical shape, when the vacuum heat insulating member comes into close contact with the hot water storage tank at a plurality of locations in the axial direction, the entire vacuum heat insulating member has a shape adapted to the hot water storage tank.

凸部群が軸方向において複数個所に分散して形成されている場合、真空断熱部材の軸方向の両端部を押圧する位置に凸部が形成されていることが好ましい。   When the convex group is formed in a plurality of locations in the axial direction, it is preferable that the convex part is formed at a position where both end portions in the axial direction of the vacuum heat insulating member are pressed.

真空断熱部材が発泡性外側断熱部材に固定されていることがさらに好ましい。すなわち、貯湯タンクを断熱部材で覆う際には、最初に真空断熱部材と発泡性外側断熱部材を固定し、ついで真空断熱部材が固定された発泡性外側断熱部材で貯湯タンクを覆うことが好ましい。断熱式貯湯装置の製造工程が簡単化される。また、点検・交換のために断熱部材を外して貯湯タンクを露出させる作業も簡単化される。   More preferably, the vacuum heat insulating member is fixed to the foamable outer heat insulating member. That is, when covering the hot water storage tank with the heat insulating member, it is preferable to first fix the vacuum heat insulating member and the foamable outer heat insulating member, and then cover the hot water storage tank with the foamable outer heat insulating member to which the vacuum heat insulating member is fixed. The manufacturing process of the adiabatic hot water storage device is simplified. Also, the work of removing the heat insulating member and exposing the hot water storage tank for inspection and replacement is simplified.

本発明によると、汎用の真空断熱部材を発泡性外側断熱部材で覆うことによって、発泡性外側断熱部材に設けた凸部群が、真空断熱部材を貯湯タンクに密着させる。この結果、真空断熱部材の全体が貯湯タンクに馴染む形状となる。本発明によると、スリットを形成することで湾曲しやすくした真空断熱部材を特別に用意する必要もなければ、ゴムチューブといった収縮部材を別に用意する必要もない。外形寸法が拡大することもない。   According to the present invention, by covering the general-purpose vacuum heat insulating member with the foamable outer heat insulating member, the convex portion group provided on the foamable outer heat insulating member brings the vacuum heat insulating member into close contact with the hot water storage tank. As a result, the entire vacuum heat insulating member has a shape that fits into the hot water storage tank. According to the present invention, it is not necessary to specially prepare a vacuum heat insulating member that is easily bent by forming a slit, and it is not necessary to separately prepare a contracting member such as a rubber tube. The external dimensions are not enlarged.

実施例１の断熱式貯湯装置の分解斜視図を模式的に示す。The disassembled perspective view of the heat insulation type hot water storage apparatus of Example 1 is shown typically. 実施例１の断熱式貯湯装置の概観斜視図を模式的に示す。1 is a schematic perspective view of an adiabatic hot water storage device of Example 1. FIG. 実施例１の断熱式貯湯装置の正面図を模式的に示す。The front view of the heat insulation type hot water storage apparatus of Example 1 is shown typically. 図３のIV−IV線断面図を示す。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. 図４の一部の拡大図。FIG. 5 is an enlarged view of a part of FIG. 4. 凸部の拡大図。The enlarged view of a convex part. 実施例２の図４に対応する図を示す。ただし蓋部材が存在しない高さでの断面を示す。The figure corresponding to FIG. 4 of Example 2 is shown. However, the cross section at the height where the lid member does not exist is shown. 実施例３の図４に対応する図を示す。ただし蓋部材が存在しない高さでの断面を示す。The figure corresponding to FIG. 4 of Example 3 is shown. However, the cross section at the height where the lid member does not exist is shown. 実施例４の断熱式貯湯装置の縦断面図を示す。The longitudinal cross-sectional view of the heat insulation type hot water storage apparatus of Example 4 is shown. 図９の一部の拡大図。FIG. 10 is an enlarged view of a part of FIG. 9. 発泡性外側断熱部材の内面に固定する真空断熱部材の範囲を示す。The range of the vacuum heat insulation member fixed to the inner surface of a foamable outer heat insulation member is shown.

以下に説明する実施例の主要な特徴を以下に列記する。
（特徴１）真空断熱部材を左右に２分割する。発泡性外側断熱部材も左右に２分割する。断熱部材を貯湯タンクに取り付けるに先立って、左側の真空断熱部材を左側の発泡性外側断熱部材の内面に固定し、右側の真空断熱部材を右側の発泡性外側断熱部材の内面に固定する。その後に、左側の発泡性外側断熱部材と右側の発泡性外側断熱部材で貯湯タンクを覆う。
（特徴２）真空断熱部材を発泡性外側断熱部材に固定するために、発泡性外側断熱部材に位置決用の接触部を設ける。湾曲させた真空断熱部材を発泡性外側断熱部材の内面に沿わせ、湾曲させた真空断熱部材の端部を接触部に接触させる。すると、湾曲させた真空断熱部材が自然形状に復帰しようとする弾性力によって、真空断熱部材の端部が接触部に強く押付けられ、真空断熱部材が発泡性外側断熱部材に対して位置決めされて固定される。また、周方向の両端部が拘束された状態の真空断熱部材に働く弾性力が、真空断熱部材を発泡性断熱部材の内面に押し付ける。
（特徴４）左側の発泡性外側断熱部材と右側の発泡性外側断熱部材と上側の発泡性外側断熱部材と下側の発泡性外側断熱部材で貯湯タンクを覆う。
（特徴５）発泡性外側断熱部材と発泡性外側断熱部材の間に係合構造を形成する。 The main features of the embodiments described below are listed below.
(Feature 1) The vacuum heat insulating member is divided into left and right parts. The foamable outer heat insulating member is also divided into left and right parts. Prior to attaching the heat insulating member to the hot water storage tank, the left vacuum heat insulating member is fixed to the inner surface of the left foamable outer heat insulating member, and the right vacuum heat insulating member is fixed to the inner surface of the right foamable outer heat insulating member. Thereafter, the hot water storage tank is covered with the left foamable outer heat insulating member and the right foamable outer heat insulating member.
(Feature 2) In order to fix the vacuum heat insulating member to the foamable outer heat insulating member, a contact portion for positioning is provided on the foamable outer heat insulating member. The curved vacuum heat insulating member is placed along the inner surface of the foamable outer heat insulating member, and the end of the curved vacuum heat insulating member is brought into contact with the contact portion. Then, the end of the vacuum heat insulating member is strongly pressed against the contact portion by the elastic force of the curved vacuum heat insulating member to return to the natural shape, and the vacuum heat insulating member is positioned and fixed with respect to the foamable outer heat insulating member. Is done. Moreover, the elastic force which acts on the vacuum heat insulating member in a state where both ends in the circumferential direction are constrained presses the vacuum heat insulating member against the inner surface of the foamable heat insulating member.
(Feature 4) The hot water storage tank is covered with the left foamable outer heat insulating member, the right foamable outer heat insulating member, the upper foamable outer heat insulating member, and the lower foamable outer heat insulating member.
(Feature 5) An engagement structure is formed between the foamable outer heat insulating member and the foamable outer heat insulating member.

図１は、実施例１の断熱式貯湯装置の分解斜視図を模式的に示している。８は、ステンレス製の貯湯タンクであり、図示しないヒートポンプで加熱された温水を貯湯する。貯湯タンクはほぼ円柱形状である。
４は左側の発泡性外側断熱部材であり、６は左側の真空断熱部材であり、１０は右側の真空断熱部材であり、１２は右側の発泡性外側断熱部材であり、２は上側の発泡性外側断熱部材であり、１４は下側の発泡性外側断熱部材である。ステンレス製貯湯タンク８は、断熱部材２、４、６、１０、１２、１４で覆われて周囲から断熱される。
なお、図１は内部構造を示すための模式図であり、実際の外観は図２に示されており、その正面図は図３に示されている。図３のIV-IV線断面図が図４に示されている。 FIG. 1 schematically shows an exploded perspective view of the heat insulation type hot water storage apparatus of the first embodiment. A stainless steel hot water storage tank 8 stores hot water heated by a heat pump (not shown). The hot water storage tank has a substantially cylindrical shape.
4 is a left foamable heat insulation member, 6 is a left vacuum heat insulation member, 10 is a right vacuum heat insulation member, 12 is a right foamable heat insulation member, and 2 is a top foamability. Reference numeral 14 denotes an outer heat insulating member, and reference numeral 14 denotes a lower foamable outer heat insulating member. The stainless steel hot water storage tank 8 is covered with the heat insulating members 2, 4, 6, 10, 12, and 14 and is insulated from the surroundings.
FIG. 1 is a schematic diagram for showing the internal structure, and an actual appearance is shown in FIG. 2, and a front view thereof is shown in FIG. A sectional view taken along line IV-IV in FIG. 3 is shown in FIG.

図１に示すように、左側の発泡性外側断熱部材４の正面側端縁４ｂの軸方向の一部は切り欠かれている（４ａ参照）。同様に、右側の発泡性外側断熱部材１２の正面側端縁１２ｂの軸方向の一部も切り欠かれている（１２ａ参照）。左側の発泡性外側断熱部材４の正面側端縁４ｂと右側の発泡性外側断熱部材１２の正面側端縁１２ｂが接するように組み合わせると、切欠き４ａと切欠き１２ａによって、貫通孔２０（図４参照）が形成される。貫通孔２０を開閉する蓋部材１６が用意されている。貯湯タンク８の外壁に、一対のサーミスタ(温度検出装置)１８ａ、１８ｂが取り付けられている。貯湯タンク８が、断熱部材２、４、６、１０、１２、１４で覆われた状態において、一対のサーミスタ１８ａ、１８ｂは、左側真空断熱部材６の端縁６ｅと右側真空断熱部材１０の端縁１０ｅの間に位置する。また、一対のサーミスタ１８ａ、１８ｂは、貫通孔２０内に位置し、蓋部材１６を外すと貫通孔２０の内側に露出する。貫通孔２０には、左側真空断熱部材６の一部と右側真空断熱部材１０の一部も露出する。作業者は貫通孔２０から左側真空断熱部材６と右側真空断熱部材１０を触診することができ、左側真空断熱部材６と右側真空断熱部材１０の正常異常を診断することができる。   As shown in FIG. 1, a part of the front side edge 4b of the left foamable outer heat insulating member 4 in the axial direction is notched (see 4a). Similarly, a part in the axial direction of the front side edge 12b of the right foamable outer heat insulating member 12 is also cut away (see 12a). When the front side edge 4b of the left foamable outer heat insulating member 4 and the front side edge 12b of the right foamable outer heat insulating member 12 are in contact with each other, the through hole 20 (see FIG. 4) is formed. A lid member 16 for opening and closing the through hole 20 is prepared. A pair of thermistors (temperature detection devices) 18 a and 18 b are attached to the outer wall of the hot water storage tank 8. In a state where the hot water storage tank 8 is covered with the heat insulating members 2, 4, 6, 10, 12, and 14, the pair of thermistors 18 a and 18 b are connected to the edge 6 e of the left vacuum heat insulating member 6 and the end of the right vacuum heat insulating member 10. Located between the edges 10e. The pair of thermistors 18 a and 18 b are located in the through hole 20 and are exposed to the inside of the through hole 20 when the lid member 16 is removed. A part of the left vacuum heat insulating member 6 and a part of the right vacuum heat insulating member 10 are also exposed in the through hole 20. An operator can palpate the left vacuum heat insulating member 6 and the right vacuum heat insulating member 10 from the through-hole 20, and can diagnose normality / abnormality of the left vacuum heat insulating member 6 and the right vacuum heat insulating member 10.

図４に示すように、左側の発泡性外側断熱部材４の内面には、７本の凸条４ｃ，４ｄ，４ｅ，４ｆ，４ｇ，４ｈ，４ｉが形成されている。凸条４ｃは左側真空断熱部材６の周方向の端縁におおむね沿う位置に形成されており、凸条４ｉは左側真空断熱部材６の周方向の端縁におおむね沿う位置に形成されている。隣接する凸条と凸条の間隔は、貯湯タンク８の周長の１/１２程度である。
同様に、右側の発泡性外側断熱部材１２の内面には、７本の凸条１２ｃ，１２ｄ，１２ｅ，１２ｆ，１２ｇ，１２ｈ，１２ｉが形成されている。凸条１２ｃは右側真空断熱部材１０の周方向の端縁におおむね沿う位置に形成されており、凸条１２ｉは右側真空断熱部材１２の周方向の端縁におおむね沿う位置に形成されている。隣接する凸条と凸条の間隔は、貯湯タンク８の周長の１/１２程度である。 As shown in FIG. 4, seven ridges 4c, 4d, 4e, 4f, 4g, 4h, 4i are formed on the inner surface of the left foamable outer heat insulating member 4. The ridges 4 c are formed at positions along the circumferential edge of the left vacuum heat insulating member 6, and the ridges 4 i are formed at positions along the circumferential edge of the left vacuum heat insulating member 6. The interval between adjacent ridges is about 1/12 of the circumference of the hot water storage tank 8.
Similarly, seven convex strips 12c, 12d, 12e, 12f, 12g, 12h, and 12i are formed on the inner surface of the right foamable outer heat insulating member 12. The ridges 12 c are formed at positions along the circumferential edge of the right vacuum heat insulating member 10, and the ridges 12 i are formed at positions along the circumferential edge of the right vacuum heat insulating member 12. The interval between adjacent ridges is about 1/12 of the circumference of the hot water storage tank 8.

凸条４ｃ，４ｄ，４ｅ，４ｆ，４ｇ，４ｈ，４ｉは、貯湯タンク８に向けて真空断熱部材６を局所的に押圧する。真空断熱部材６が局所的に押圧されるために押圧力が集中し、凸条４ｃ，４ｄ，４ｅ，４ｆ，４ｇ，４ｈ，４ｉで局所的に押圧された範囲の真空断熱部材６は貯湯タンク８に密着する。貯湯タンク８は円柱状であり、凸条４ｃ，４ｄ，４ｅ，４ｆ，４ｇ，４ｈ，４ｉで局所的に押圧された範囲の真空断熱部材６が貯湯タンク８に密着すると、真空断熱部材６の全体が貯湯タンク８の壁面によく馴染む。
凸条１２ｃ，１２ｄ，１２ｅ，１２ｆ，１２ｇ，１２ｈ，１２ｉについても同様である。 The ridges 4 c, 4 d, 4 e, 4 f, 4 g, 4 h, 4 i locally press the vacuum heat insulating member 6 toward the hot water storage tank 8. Since the vacuum heat insulating member 6 is locally pressed, the pressing force is concentrated, and the vacuum heat insulating member 6 in the range where it is locally pressed by the ridges 4c, 4d, 4e, 4f, 4g, 4h, 4i is a hot water storage tank. 8 adheres closely. The hot water storage tank 8 has a cylindrical shape, and when the vacuum heat insulating member 6 in a range locally pressed by the ridges 4c, 4d, 4e, 4f, 4g, 4h, and 4i comes into close contact with the hot water storage tank 8, the vacuum heat insulating member 6 The whole fits well with the wall surface of the hot water storage tank 8.
The same applies to the ridges 12c, 12d, 12e, 12f, 12g, 12h, and 12i.

発泡性外側断熱部材４は薄肉であり、変形しやすい。凸条４ｃ，４ｄ，４ｅ，４ｆ，４ｇ，４ｈ，４ｉがなければ（すなわち、発泡性外側断熱部材４の内面が真空断熱部材６の外面に面と面で接触して真空断熱部材６を貯湯タンク８に押付ける場合であれば）、左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２の端縁同士が接する状態に組み付けた場合に、左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２が外側に変形して真空断熱部材６，１０を貯湯タンク８に押付けられない。凸条４ｃ，４ｄ，４ｅ，４ｆ，４ｇ，４ｈ，４ｉと、凸条１２ｃ，１２ｄ，１２ｅ，１２ｆ，１２ｇ，１２ｈ，１２ｉを利用すると、左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２を薄肉な形状に維持したまま、真空断熱部材６，１０を貯湯タンク８に密着させることができる。
本実施例では、左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２の端縁同士が接するまで接近させると、発泡性外側断熱部材４の端縁に形成されているフック４ｍと、発泡性外側断熱部材１２の端縁に形成されているフック１２ｍが係合する。図４は、蓋部材１６が存在する高さでの断面を示しているために図示されていないが、蓋部材１６が存在しない高さでは、左側の発泡性外側断熱部材４の正面側端縁にもフックが形成され、右側の発泡性外側断熱部材１２の正面側端縁にもフックが形成されている。左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２の端縁同士が接するまで接近させると、フックが係合して左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２の端縁同士が接する位置関係が維持される。なお、作業者はフックを外側に変形させることで、係合関係を解除することができる。 The foamable outer heat insulating member 4 is thin and easily deformed. If there is no ridge 4c, 4d, 4e, 4f, 4g, 4h, 4i (that is, the inner surface of the foamable outer heat insulating member 4 is in contact with the outer surface of the vacuum heat insulating member 6 surface to surface, the vacuum heat insulating member 6 is stored in hot water. The left foamable outer heat insulating member 4 and the right foamable outer heat insulating member 12 and the left foamable outer heat insulating member 12 when they are assembled so that the edges of the left foamable outer heat insulating member 4 and the right foamable outer heat insulating member 12 are in contact with each other. The right foamable outer heat insulating member 12 is deformed outward and the vacuum heat insulating members 6 and 10 cannot be pressed against the hot water storage tank 8. When the ridges 4c, 4d, 4e, 4f, 4g, 4h, 4i and the ridges 12c, 12d, 12e, 12f, 12g, 12h, 12i are used, the left foamable outer heat insulating member 4 and the right foamable outside The vacuum heat insulating members 6 and 10 can be brought into close contact with the hot water storage tank 8 while the heat insulating member 12 is maintained in a thin shape.
In this embodiment, when the left foamable outer heat insulating member 4 and the right foamable outer heat insulating member 12 are brought close to each other until the edges contact each other, the hook 4m formed on the edge of the foamable outer heat insulating member 4 and The hook 12m formed on the edge of the foamable outer heat insulating member 12 is engaged. FIG. 4 is not shown because it shows a cross section at a height where the lid member 16 exists, but at the height where the lid member 16 does not exist, the front side edge of the left foamable outer heat insulating member 4 is shown. A hook is also formed, and a hook is also formed on the front side edge of the right foamable outer heat insulating member 12. When the left foamable outer heat insulating member 4 and the right foamable outer heat insulating member 12 are brought close to each other until the edges contact each other, the hook engages and the left foamable outer heat insulating member 4 and the right foamable outer heat insulating member 12 The positional relationship in which the 12 edges contact each other is maintained. The operator can release the engagement relationship by deforming the hook outward.

図５は、凸条１２ｆの拡大図を示している。凸条群４ｃ〜４ｉ、１２ｃ〜12ｉの断面形状は、曲線で形成されていてもよいし、直線で形成されていてもよい。
発泡性外側断熱部材４，１２の内面は湾曲しており、そこに形成する凸条の断面形状は様々でありえる。例えば図６（ａ）の場合、面８２は平坦であり、凸形状ではない。しかしながら、連続して湾曲している場合の仮想面８４と比較すれば、貯湯タンク８側に接近している。ここでいう凸とは、貯湯タンクの外周面に倣って湾曲する仮想面よりも局所的に貯湯タンク８側に接近している形状をいう。貯湯タンクの外周面に倣って湾曲する仮想面の半径をＲとし、局所的接近面から前記仮想面（半径Ｒの仮想面）の中心までの距離をＨとし、局所的接近面の幅をＷとしたとき、Ｗ/２＜（Ｒ２−Ｈ２）１/２であれば、局所的接近面が凸条を形成しているということができる。図６（ａ）（ｂ）の凸条は上記の関係を満たしている。 FIG. 5 shows an enlarged view of the ridge 12f. The cross-sectional shapes of the ridge groups 4c to 4i and 12c to 12i may be formed with curves or may be formed with straight lines.
The inner surfaces of the foamable outer heat insulating members 4 and 12 are curved, and the cross-sectional shape of the ridges formed thereon can vary. For example, in the case of FIG. 6A, the surface 82 is flat and not convex. However, compared with the virtual surface 84 in the case of being continuously curved, the hot water storage tank 8 is approached. Here, the convexity refers to a shape that is closer to the hot water storage tank 8 side than a virtual surface that curves along the outer peripheral surface of the hot water storage tank. Let R be the radius of an imaginary surface that follows the outer peripheral surface of the hot water tank, H be the distance from the local approach surface to the center of the virtual surface (the virtual surface of radius R), and W be the width of the local access surface. Then, if W / 2 <(R 2 −H 2 ) 1/2, it can be said that the local approach surface forms a ridge. 6 (a) and 6 (b) satisfy the above relationship.

図７は、実施例２の図４に対応する図を示す。ただし蓋部材が存在しない高さの断面を示す。この場合、左側の発泡性外側断熱部材４の内面のうち、右側の発泡性外側断熱部材１２と当接する縁に沿った範囲に凸条４ｊと凸条４ｋが形成されている。同様に、右側の発泡性外側断熱部材１２の内面のうち、左側の発泡性外側断熱部材４と当接する縁に沿った範囲に凸条１２ｊと凸条１２ｋが形成されている。フック４ｍとフック１２ｍを利用して、左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２を当接させると、凸条４ｊと凸条１２ｊは連続し、実質的には１本の凸条を提供する。同様に、凸条４ｋと凸条１２ｋは連続し、実質的には１本の凸条を提供する。
凸条４ｊと凸条１２ｊで構成される１本の凸条は、左側真空断熱部材６の周方向の一端と、右側真空断熱部材１０の周方向の一端を貯湯タンク８に押付ける。凸条４ｋと凸条１２ｋで構成される１本の凸条は、左側真空断熱部材６の周方向の他端と、右側真空断熱部材１０の周方向の他端を貯湯タンク８に押付ける。この結果、左側真空断熱部材６と右側真空断熱部材１０の双方の全体が、貯湯タンク８に倣って湾曲する現象を得ることができる。凸条４ｊと凸条１２ｊで構成される１本の凸条と、凸条４ｋと凸条１２ｋで構成される１本の凸条の間隔は、貯湯タンク８の周長の１/２以下である。隣接する凸条と凸条の間隔が、貯湯タンク８の周長の１/２以下であれば、真空断熱部材６，１０のほぼ全域を貯湯タンク８に密着させることができる。 FIG. 7 shows a diagram corresponding to FIG. 4 of the second embodiment. However, the cross section of the height where a cover member does not exist is shown. In this case, the ridges 4j and the ridges 4k are formed in a range along the edge of the inner surface of the left foamable outer heat insulating member 4 that contacts the right foamable outer heat insulating member 12. Similarly, ridges 12j and ridges 12k are formed in a range along the edge of the inner surface of the right foamable outer heat insulating member 12 that contacts the left foamable outer heat insulating member 4. When the left foamable outer heat insulating member 4 and the right foamable outer heat insulating member 12 are brought into contact with each other using the hook 4m and the hook 12m, the protrusion 4j and the protrusion 12j are continuous and substantially one. Provide ridges. Similarly, the ridges 4k and the ridges 12k are continuous and substantially provide one ridge.
One ridge composed of the ridges 4j and the ridges 12j presses one end in the circumferential direction of the left vacuum heat insulating member 6 and one end in the circumferential direction of the right vacuum heat insulating member 10 against the hot water storage tank 8. One ridge composed of the ridges 4 k and the ridges 12 k presses the other end in the circumferential direction of the left vacuum heat insulating member 6 and the other end in the circumferential direction of the right vacuum heat insulating member 10 against the hot water storage tank 8. As a result, it is possible to obtain a phenomenon in which both the left vacuum heat insulating member 6 and the right vacuum heat insulating member 10 are curved following the hot water storage tank 8. The interval between one ridge composed of the ridges 4j and the ridge 12j and one ridge composed of the ridges 4k and 12k is 1/2 or less of the circumferential length of the hot water storage tank 8. is there. If the interval between adjacent ridges is 1/2 or less of the circumferential length of the hot water storage tank 8, almost the entire area of the vacuum heat insulating members 6, 10 can be brought into close contact with the hot water storage tank 8.

図８は、実施例３の図４に対応する図を示す。ただし蓋部材が存在しない高さの断面を示す。この場合、左側の発泡性外側断熱部材４の内面のうち、周方向の中央位置に、凸条４ｐが形成されている。同様に、右側の発泡性外側断熱部材１２の内面のうち、周方向の中央位置に、凸条１２ｐが形成されている。フック４ｍとフック１２ｍを利用して、左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２を当接させると、凸条４ｐは左側真空断熱部材６の周方向の中央位置を貯湯タンク８に押付ける。同様に、凸条１２ｐは右側真空断熱部材１０の周方向の中央位置を貯湯タンク８に押付ける。この結果、左側真空断熱部材６と右側真空断熱部材１０の双方の全体が、貯湯タンク８に倣って湾曲する現象を得ることができる。凸条４ｐと凸条１２ｐの間隔は、貯湯タンク８の周長の１/２以下である。隣接する凸条と凸条の間隔が、貯湯タンク８の周長の１/２以下であれば、真空断熱部材６，１０のほぼ全域を貯湯タンク８に密着させることができる。   FIG. 8 shows a diagram corresponding to FIG. 4 of the third embodiment. However, the cross section of the height where a cover member does not exist is shown. In this case, the protrusion 4p is formed in the center position of the circumferential direction among the inner surfaces of the left foamable outer heat insulating member 4. Similarly, the protruding item | line 12p is formed in the center position of the circumferential direction among the inner surfaces of the foamable outer side heat insulation member 12 of the right side. When the left foamable outer heat insulating member 4 and the right foamable outer heat insulating member 12 are brought into contact with each other using the hook 4m and the hook 12m, the protrusion 4p stores the center position in the circumferential direction of the left vacuum heat insulating member 6 in hot water. Press against tank 8. Similarly, the ridge 12 p presses the circumferential center position of the right vacuum heat insulating member 10 against the hot water storage tank 8. As a result, it is possible to obtain a phenomenon in which both the left vacuum heat insulating member 6 and the right vacuum heat insulating member 10 are curved following the hot water storage tank 8. The interval between the ridges 4p and the ridges 12p is 1/2 or less of the circumferential length of the hot water storage tank 8. If the interval between adjacent ridges is 1/2 or less of the circumferential length of the hot water storage tank 8, almost the entire area of the vacuum heat insulating members 6, 10 can be brought into close contact with the hot water storage tank 8.

真空断熱部材６，１０のそれぞれを周方向に２区分に等分し、各区分内に少なくとも一本の凸条が配置される関係を採用してもよい。すなわち、真空断熱部材を１/４周ごとの範囲に区分したときに、各区分内に少なくとも一本の凸条が配置されているようにすれば、より確実に真空断熱部材６，１０のほぼ全域を貯湯タンク８に密着させることができる。   Each of the vacuum heat insulating members 6 and 10 may be equally divided into two sections in the circumferential direction, and a relationship in which at least one ridge is arranged in each section may be employed. That is, when the vacuum heat insulating members are divided into ranges of every ¼ round, if at least one ridge is arranged in each of the sections, the vacuum heat insulating members 6 and 10 can be more reliably obtained. The entire region can be brought into close contact with the hot water storage tank 8.

図９、図１０に図示するように、凸条は、軸方向の複数個所に分散して形成されていてもよい。図９では、凸条４ｆ、１２ｆが軸方向に分断されて不連続となっている様子を図示している。軸方向の複数個所に分散して形成されているといってもよい。この場合、真空断熱部材６，１０の軸方向の両端部を押圧する位置に、凸条が形成されていることが好ましい。
真空断熱部材６，１０を軸方向に２区分に等分し、各区分内に少なくとも1個の分割凸条が配置される関係を採用してもよい。真空断熱部材を軸方向に２等分したときに、各区分内に少なくとも一個の分割凸条が配置されていれば、真空断熱部材６，１０をほぼ全長にわたって貯湯タンク８に密着させることができる。
凸条を軸方向に分散して形成する場合、軸方向の位置がずれるのにあわせて周方向の位置までずらしてもよい。各々の凸は、軸方向に短くて周方向に長い凸条であってもよい。あるいは、周方向でも軸方向でも短い独立峰形状であってもよい。凸部は、凸条であってもよいし、独立峰形状であってもよい。局所的に押圧する直線群の分布パターン、局所的に押圧する線分群の分布パターン、局所的に押圧する点群の分布パターンは様々でありえる。 As illustrated in FIGS. 9 and 10, the ridges may be formed in a distributed manner at a plurality of locations in the axial direction. FIG. 9 illustrates a state in which the ridges 4f and 12f are discontinuous by being divided in the axial direction. It may be said that they are formed dispersedly at a plurality of locations in the axial direction. In this case, it is preferable that protrusions are formed at positions where both end portions in the axial direction of the vacuum heat insulating members 6 and 10 are pressed.
The vacuum heat insulating members 6 and 10 may be equally divided into two sections in the axial direction, and a relationship in which at least one split ridge is arranged in each section may be adopted. When the vacuum heat insulating member is divided into two equal parts in the axial direction, the vacuum heat insulating members 6 and 10 can be brought into close contact with the hot water storage tank 8 over the entire length as long as at least one split ridge is arranged in each section. .
In the case of forming the ridges dispersed in the axial direction, it may be shifted to the circumferential position as the axial position is shifted. Each protrusion may be a protrusion that is short in the axial direction and long in the circumferential direction. Alternatively, a short independent peak shape may be used in both the circumferential direction and the axial direction. The convex portion may be a ridge or an independent peak shape. The distribution pattern of the straight line group to be pressed locally, the distribution pattern of the line segment group to be pressed locally, and the distribution pattern of the point group to be pressed locally can be various.

本実施例では、左側真空断熱部材６の一部を左側の発泡性外側断熱部材４に固定し、右側真空断熱部材１０の一部を右側の発泡性外側断熱部材１２に固定し、その後に、左側の発泡性外側断熱部材４と右側の発泡性外側断熱部材１２の間に貯湯タンク８を挟みこむ作業を実施して製造する。
固定方法は様々でありえる。真空断熱部材の弾性力を利用して真空断熱部材を発泡性外側弾性部材の内面に押付けて物理的に固定してもよい。
あるいは、接着剤で固定してもよいし、粘着テープで固定してもよい。左側真空断熱部材６を左側の発泡性外側断熱部材４に固定し、右側真空断熱部材１０を右側の発泡性外側断熱部材１２に固定する位置は、様々でありえる。図１１のハッチは、固定箇所を例示している。
（ａ）では、真空断熱部材６，１０の周方向の両端縁を発泡性外側断熱部材４，１２に固定する。左端縁に沿った範囲のみを固定してもよいし、右端縁に沿った範囲のみを固定してもよい。（ｂ）では、さらに周方向の中央位置でも発泡性外側断熱部材４，１２に固定する。（ｃ）では、真空断熱部材６，１０の上下方向の両端縁を発泡性外側断熱部材４，１２に固定する。上端縁に沿った範囲のみを固定してもよいし、下端縁に沿った範囲のみを固定してもよい。（ｄ）では、さらに軸方向の中央位置でも発泡性外側断熱部材４，１２に固定する。 In this embodiment, a part of the left vacuum heat insulating member 6 is fixed to the left foamable outer heat insulating member 4, a part of the right vacuum heat insulating member 10 is fixed to the right foamable outer heat insulating member 12, and then, The hot water storage tank 8 is sandwiched between the left foamable outer heat insulating member 4 and the right foamable outer heat insulating member 12 for manufacturing.
There are various fixing methods. The vacuum heat insulating member may be physically fixed by being pressed against the inner surface of the foamable outer elastic member using the elastic force of the vacuum heat insulating member.
Or you may fix with an adhesive agent and you may fix with an adhesive tape. The position where the left vacuum heat insulating member 6 is fixed to the left foamable outer heat insulating member 4 and the right vacuum heat insulating member 10 is fixed to the right foamable outer heat insulating member 12 can be various. The hatches in FIG. 11 illustrate fixed points.
In (a), both end edges in the circumferential direction of the vacuum heat insulating members 6 and 10 are fixed to the foamable outer heat insulating members 4 and 12. Only the range along the left edge may be fixed, or only the range along the right edge may be fixed. In (b), it is fixed to the foamable outer heat insulating members 4 and 12 even at the center position in the circumferential direction. In (c), both end edges in the vertical direction of the vacuum heat insulating members 6 and 10 are fixed to the foamable outer heat insulating members 4 and 12. Only the range along the upper edge may be fixed, or only the range along the lower edge may be fixed. In (d), it fixes to the foamable outer heat insulation members 4 and 12 also in the axial center position.

以上、本発明の実施例について詳細に説明したが、これらは例示に過ぎず、特許請求の範囲を限定するものではない。特許請求の範囲に記載の技術には、以上に例示した具体例を様々に変形、変更したものが含まれる。   As mentioned above, although the Example of this invention was described in detail, these are only illustrations and do not limit a claim. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

本明細書または図面に説明した技術要素は、単独であるいは各種の組合せによって技術的有用性を発揮するものであり、出願時請求項記載の組合せに限定されるものではない。また本明細書または図面に例示した技術は複数目的を同時に達成し得るものであり、そのうちの一つの目的を達成すること自体で技術的有用性を持つものである。   The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings can achieve a plurality of objects at the same time, and achieving one of the objects itself has technical utility.

２：上側の発泡性外側断熱部材
４：左側の発泡性外側断熱部材
４ｃ，４ｄ，４ｅ，４ｆ，４ｇ，４ｇ，４ｈ，４ｉ，４ｊ，４ｋ，４ｐ：凸条
６：左側真空断熱部材
８：貯湯タンク
１０：右側真空断熱部材
１２：右側の発泡性外側断熱部材
１２ｃ，１２ｄ，１２ｅ，１２ｆ，１２ｇ，１２ｇ，１２ｈ，１２ｉ，１２ｊ，１２ｋ，１２ｐ：凸条
１４：下側の発泡性外側断熱部材
１６：蓋部材 2: Upper foamable outer heat insulating member 4: Left foamable outer heat insulating member 4c, 4d, 4e, 4f, 4g, 4g, 4h, 4i, 4j, 4k, 4p: Projection 6: Left vacuum heat insulating member 8: Hot water storage tank 10: right vacuum heat insulating member 12: right foaming outer heat insulating member 12c, 12d, 12e, 12f, 12g, 12g, 12h, 12i, 12j, 12k, 12p: ridge 14: lower foaming outer heat insulating member Member 16: Lid member

Claims (6)

貯湯タンクと、
貯湯タンクの少なくとも一部を覆う真空断熱部材と、
真空断熱部材の全域を覆う発泡性外側断熱部材を備えており、
発泡性外側断熱部材の内面に、真空断熱部材を局所的に押圧し、押圧された範囲の真空断熱部材を貯湯タンクに密着させる凸部群が形成されていることを特徴とする断熱式貯湯装置。 A hot water storage tank,
A vacuum insulation member covering at least a part of the hot water storage tank;
It has a foamable outer heat insulating member that covers the entire area of the vacuum heat insulating member,
A heat insulating hot water storage device, wherein a convex group is formed on the inner surface of the foamable outer heat insulating member to locally press the vacuum heat insulating member and to bring the pressed heat insulating member into close contact with the hot water storage tank. . 貯湯タンクが、略円柱状であり、
発泡性外側断熱部材は、略円柱状の貯湯タンクの左側を覆う左側の発泡性外側断熱部材と略円柱状の貯湯タンクの右側を覆う右側の発泡性外側断熱部材を備えており、
左側の発泡性外側断熱部材の端縁と右側の発泡性外側断熱部材の端縁に係合形状が形成されており、両者が係合すると左側の発泡性外側断熱部材と右側の発泡性外側断熱部材が真空断熱部材と貯湯タンクを包みこんで真空断熱部材を貯湯タンクに密着させるものであり、
凸部群が、貯湯タンクの周方向に沿った複数個所に分散して形成されていることを特徴とする請求項１の断熱式貯湯装置。 The hot water storage tank is substantially cylindrical,
The foamable outer heat insulation member includes a left foamable outer heat insulation member that covers the left side of the substantially cylindrical hot water storage tank and a right foamable outer heat insulation member that covers the right side of the substantially cylindrical hot water storage tank.
Engaging shapes are formed at the edge of the left foamable outer heat insulating member and the edge of the right foamable outer heat insulating member, and when both are engaged, the left foamable outer heat insulating member and the right foamable outer heat insulating member are formed. The member wraps the vacuum heat insulating member and the hot water storage tank so that the vacuum heat insulating member is in close contact with the hot water storage tank,
The heat insulating hot water storage device according to claim 1, wherein the convex group is formed in a distributed manner at a plurality of locations along the circumferential direction of the hot water storage tank. 隣接する２箇所の凸部の間隔が、貯湯タンクの周長の１/２以下であることを特徴とする請求項２の断熱式貯湯装置。   The heat insulating hot water storage device according to claim 2, wherein the interval between the two adjacent convex portions is 1/2 or less of the circumference of the hot water storage tank. 貯湯タンクが、略円柱状であり、
凸部群が、貯湯タンクの軸方向に沿った複数個所に分散して形成されていることを特徴とする請求項１から３のいずれかの１項に記載の断熱式貯湯装置。 The hot water storage tank is substantially cylindrical,
The heat insulating hot water storage device according to any one of claims 1 to 3, wherein the convex group is formed in a distributed manner at a plurality of locations along the axial direction of the hot water storage tank. 凸部群が、真空断熱部材の軸方向の両端部を押圧することを特徴とする請求項４の断熱式貯湯装置。   The heat insulating hot water storage device according to claim 4, wherein the convex portion group presses both end portions in the axial direction of the vacuum heat insulating member. 真空断熱部材が発泡性外側断熱部材に固定されていることを特徴とする請求項１から５のいずれかの１項に記載の断熱式貯湯装置。   The heat insulating hot water storage device according to any one of claims 1 to 5, wherein the vacuum heat insulating member is fixed to the foamable outer heat insulating member.
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