JP2011163580A - Storage type water heater - Google Patents
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- JP2011163580A JP2011163580A JP2010023891A JP2010023891A JP2011163580A JP 2011163580 A JP2011163580 A JP 2011163580A JP 2010023891 A JP2010023891 A JP 2010023891A JP 2010023891 A JP2010023891 A JP 2010023891A JP 2011163580 A JP2011163580 A JP 2011163580A
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Abstract
Description
本発明は、貯湯タンクからの放熱を低減させる真空断熱材を有する貯湯式給湯機に関するものである。 The present invention relates to a hot water storage type water heater having a vacuum heat insulating material that reduces heat radiation from a hot water storage tank.
従来、この種の給湯機の貯湯タンクを覆う断熱材には、二種以上の断熱材を組み合わせて構成されているものがあり、貯湯タンク周囲の主要部分や形状が複雑な部位には発泡スチロール成型断熱材で覆い、薄肉にする必要がある部位には、元は平板状の真空断熱材を貯湯タンクの形状に沿うように円筒状にロール加工して覆っている（例えば、特許文献１参照）。 Conventionally, heat insulation materials that cover the hot water storage tanks of this type of water heater have been constructed by combining two or more types of heat insulation materials, and the main parts around the hot water storage tanks and parts with complicated shapes are made of polystyrene foam. The part that needs to be covered and thinned with a heat insulating material is originally covered with a flat vacuum heat insulating material that is rolled into a cylindrical shape along the shape of the hot water storage tank (see, for example, Patent Document 1). .
図５は、特許文献１に記載された従来の給湯機の貯湯タンク部の水平断面を示すものである。図５に示すように、貯湯タンク１の周囲で筐体２との間隙が小さい部分を真空断熱材３で覆い、その他の部分を発泡スチロール断熱材４で構成している。ここで図５のＡ部に示す二種類の断熱材の接合部、及び、真空断熱材の構成について説明する。 FIG. 5 shows a horizontal cross section of a hot water storage tank portion of a conventional water heater described in Patent Document 1. As shown in FIG. As shown in FIG. 5, a portion having a small gap with the housing 2 around the hot water storage tank 1 is covered with the vacuum heat insulating material 3, and the other portion is formed with the polystyrene heat insulating material 4. Here, the joint part of the two types of heat insulating materials shown in part A of FIG.
図６は従来の給湯機の真空断熱材と発泡スチロール断熱材の接合部の断面図である。図６に示すように、真空断熱材３はグラスウールなどの材料を用いた芯材３ａ、及び芯材３ａを包む樹脂製フィルムによる外装材３ｂで構成され、芯材３ａの外側にヒートシール用の外装材外縁部３ｃが設けられている。また、真空断熱材３と発泡スチロール断熱材４の取り付けは、前述真空断熱材３の外縁部３ｃと発泡スチロール断熱材４を重ねた部分の上から粘着テープ５を貼付けて固定する構成となっている。 FIG. 6 is a cross-sectional view of a joint between a vacuum heat insulating material and a polystyrene foam heat insulating material of a conventional water heater. As shown in FIG. 6, the vacuum heat insulating material 3 is composed of a core material 3a using a material such as glass wool, and an exterior material 3b made of a resin film surrounding the core material 3a. An exterior material outer edge 3c is provided. Moreover, the attachment of the vacuum heat insulating material 3 and the expanded polystyrene heat insulating material 4 becomes a structure which affixes the adhesive tape 5 on the part which overlapped the outer edge part 3c of the above-mentioned vacuum heat insulating material 3, and the expanded polystyrene heat insulating material 4, and fixes.
しかしながら前記従来の構成では、真空断熱材はある程度剛性を持った平板状のものをロール加工するため、加工で生じた残留応力で元の平板状に戻る力が働き外側に広がってしまい、貯湯タンクの円筒面に沿わなくなり、貯湯タンク外郭と真空断熱材の間隙が一定にならず、また、真空断熱材と発泡スチロール断熱材の接合部は真空断熱材の外縁の柔らかい外装材を介して固定されているため、前述の真空断熱材の元に戻ろうとする力で断熱材の接合部が浮き、高温の貯湯タンクから放熱を防ぎ断熱を司る断熱材の保温性能にばらつきが生じやすいという課題を有していた。 However, in the conventional configuration, the vacuum heat insulating material is rolled to a flat plate having a certain degree of rigidity, so that the force to return to the original flat plate works due to the residual stress generated by the processing and spreads outward, and the hot water storage tank The gap between the outer wall of the hot water storage tank and the vacuum heat insulating material is not constant, and the joint between the vacuum heat insulating material and the styrene foam heat insulating material is fixed via a soft outer covering material at the outer edge of the vacuum heat insulating material. Therefore, there is a problem that the heat insulation performance of the heat insulating material that tends to prevent heat dissipation from the high temperature hot water storage tank tends to vary and the heat insulation performance tends to vary due to the force of returning to the vacuum heat insulating material described above. It was.
本発明は、前記従来の課題を解決するもので、真空断熱材の貯湯タンクへの配置形状を安定化させることにより、貯湯タンクの保温性能を向上させた貯湯式給湯機を提供することを目的とする。 The present invention solves the above-described conventional problems, and an object of the present invention is to provide a hot water storage type hot water heater in which the heat insulation performance of the hot water storage tank is improved by stabilizing the arrangement shape of the vacuum heat insulating material in the hot water storage tank. And
前記従来の課題を解決するために、本発明の貯湯式給湯機は、芯材が表裏２枚からなるフィルム状外装材の中に低真空状態で密封され、貯湯タンク外郭に沿うように曲げ加工された真空断熱材において、前記外装材の外縁に、前記曲げ加工形状に沿った形状のフレームを接合した真空断熱材を備えたもので、ロール加工した真空断熱材の円筒形状および外縁形状が安定し、真空断熱材と発泡スチロール断熱材の接合部および真空断熱材と貯湯タ
ンクの間隙がばらつくのを防止し、結果、保温性能のばらつきの低減を可能としたものである。
In order to solve the above-mentioned conventional problems, the hot water storage type water heater of the present invention is bent so that the core material is sealed in a low vacuum state in a film-like exterior material consisting of two front and back surfaces, and along the outer shape of the hot water storage tank. The vacuum heat insulating material is provided with a vacuum heat insulating material in which a frame having a shape along the bent shape is joined to the outer edge of the exterior material, and the cylindrical shape and outer edge shape of the rolled vacuum heat insulating material are stable. In addition, the joint between the vacuum heat insulating material and the styrene foam heat insulating material and the gap between the vacuum heat insulating material and the hot water storage tank are prevented from varying, and as a result, variation in the heat insulation performance can be reduced.
本発明によれば、真空断熱材の貯湯タンクへの配置形状を安定化させることにより、貯湯タンクの保温性能を向上させた貯湯式給湯機を提供できる。 ADVANTAGE OF THE INVENTION According to this invention, the hot water storage type hot water heater which improved the heat retention performance of the hot water storage tank can be provided by stabilizing the arrangement shape of the vacuum heat insulating material in the hot water storage tank.
第１の発明は、芯材が表裏２枚からなるフィルム状外装材の中に低真空状態で密封され、貯湯タンク外郭に沿うように曲げ加工された真空断熱材において、前記外装材の外縁に、前記曲げ加工形状に沿った形状のフレームを接合した真空断熱材を備えた貯湯式給湯機で、真空断熱材がロール加工後に残留応力で元の平板状に戻ろうとする変形を抑え、真空断熱材の形状を安定化させることができ、保温性能のばらつきを抑えることができる。 A first aspect of the present invention is a vacuum heat insulating material that is sealed in a low vacuum state in a film-shaped exterior material comprising two front and back cores, and is bent along the outer shape of the hot water storage tank. , A hot water storage type water heater equipped with a vacuum heat insulating material joined to a frame having a shape conforming to the bending shape, and the vacuum heat insulating material suppresses deformation that tends to return to the original flat plate shape due to residual stress after roll processing. The shape of the material can be stabilized, and variations in heat retention performance can be suppressed.
第２の発明は、フレームの一端が、貯湯タンクの外郭に接触することで、貯湯タンク外郭との間に空間を有する真空断熱材を備えた貯湯式給湯機で、貯湯タンクと真空断熱材の離隔寸法を一定に保ち、かつ、真空断熱材がロール加工後に残留応力で元の平板状に戻ろうとする変形を抑えて真空断熱材の形状を安定化することで保温性能のばらつきを抑えることができる。 A second aspect of the present invention is a hot water storage type water heater provided with a vacuum heat insulating material having a space between the outer end of the hot water storage tank and one end of the frame contacting the outer surface of the hot water storage tank. Keeping the separation dimension constant and suppressing the deformation of the vacuum insulation material to return to the original flat plate shape due to residual stress after roll processing and stabilizing the shape of the vacuum insulation material can suppress variation in heat insulation performance it can.
第３の発明は、一端がコの字状で、他の断熱材と組み合わさるフレームを有する真空断熱材を備えた貯湯式給湯機で、その折り返し部を発泡スチロール断熱材の内側にはめ込む構成とし、粘着テープの粘着力だけでなく構造的に真空断熱材の広がりを抑えることで、真空断熱材がロール加工後に残留応力で元の平板状に戻ろうとする変形を抑え、真空断熱材の形状を安定化させることができ、保温性能のばらつきを抑えることができる。 The third invention is a hot water storage type water heater provided with a vacuum heat insulating material having a frame that is combined with another heat insulating material in a U-shape at one end, and configured to fit the folded portion into the inside of the expanded polystyrene heat insulating material, By suppressing not only the adhesive force of the adhesive tape but also the spread of the vacuum insulation material structurally, the vacuum insulation material is prevented from deforming to return to the original flat plate shape with residual stress after roll processing, and the shape of the vacuum insulation material is stabilized. And variation in heat retention performance can be suppressed.
以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
（実施の形態１）
図１は、本発明の第１の実施の形態における給湯機の真空断熱材の構成と配置を表した分解図を示すものである。
(Embodiment 1)
FIG. 1 is an exploded view showing the configuration and arrangement of a vacuum heat insulating material of a water heater in the first embodiment of the present invention.
図１において貯湯タンク１の前面及び天面には発泡スチロール断熱材４が配置され、貯湯タンク１の背面の円筒部は、外縁内側にフレーム６を取り付けた真空断熱材３が配置されている。フレーム６は、左右端は鉛直方向直線上に、上下端は水平方向にタンク１の曲面に沿って湾曲した形状となっている。 In FIG. 1, a foamed heat insulating material 4 is disposed on the front surface and the top surface of the hot water storage tank 1, and a vacuum heat insulating material 3 having a frame 6 attached to the inner side of the outer edge of the cylindrical portion on the rear surface of the hot water storage tank 1 is disposed. The frame 6 has a shape in which the left and right ends are curved along a curved line of the tank 1 in the vertical direction and the upper and lower ends in the horizontal direction.
図２は、本発明の第１の実施の形態における真空断熱材と発泡スチロール断熱材の接合
部の断面図である。
FIG. 2 is a cross-sectional view of the joint between the vacuum heat insulating material and the polystyrene foam heat insulating material in the first embodiment of the present invention.
図２において、真空断熱材３は芯材３ａを２枚のガスバリア性のあるフィルム状の外装材３ｂで表裏を挟んだ構成になっており、芯材３ａの部分を真空に保つよう、真空断熱材の外縁３ｃの部分でヒートシールし密封したものである。 In FIG. 2, the vacuum heat insulating material 3 has a configuration in which a core material 3a is sandwiched between two gas barrier film-shaped exterior materials 3b, and the vacuum heat insulating material 3a is maintained so as to keep the core material 3a in a vacuum. It is heat sealed at the outer edge 3c of the material and sealed.
真空断熱材の外縁３ｃは約２０〜５０ｍｍ程度の幅がある。また、フレーム６は樹脂製でＬ字型断面となっており前述の真空断熱材の外縁３ｃに高周波溶着または超音波溶着などの工法によって熱溶着して取り付けられている。 The outer edge 3c of the vacuum heat insulating material has a width of about 20 to 50 mm. The frame 6 is made of resin and has an L-shaped cross section, and is attached to the outer edge 3c of the vacuum heat insulating material by heat welding by a method such as high frequency welding or ultrasonic welding.
以上のように構成された給湯機の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 of the water heater comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
まず、真空断熱材３は平板状で製造されるが、給湯機の貯湯タンク１は円筒形状のため、貯湯タンク１外郭に沿って真空断熱材３はロール加工される。 First, although the vacuum heat insulating material 3 is manufactured in a flat plate shape, since the hot water storage tank 1 of the water heater is cylindrical, the vacuum heat insulating material 3 is rolled along the outline of the hot water storage tank 1.
加工後、真空断熱材３は元の形状に戻ろうとするため、本発明のフレーム６を真空断熱材３の外縁に溶着することで、真空断熱材３の変形を抑えることにより、真空断熱材３の円筒形状および外縁形状が安定し、真空断熱材３と発泡スチロール断熱材２の接合部の密着、および真空断熱材３と貯湯タンク１の間隙がばらつくのを防止し、結果、保温性能のばらつきが低減できる。 Since the vacuum heat insulating material 3 tries to return to the original shape after the processing, the vacuum heat insulating material 3 is suppressed by welding the frame 6 of the present invention to the outer edge of the vacuum heat insulating material 3 to suppress the deformation of the vacuum heat insulating material 3. The cylindrical shape and the outer edge shape of the material are stable, the joint between the vacuum heat insulating material 3 and the styrene foam heat insulating material 2 is prevented from sticking, and the gap between the vacuum heat insulating material 3 and the hot water storage tank 1 is prevented from varying. Can be reduced.
以上のように、本実施の形態においては、真空断熱材３の外装材外縁に真空断熱材３がロール加工後に残留応力で元の平板状に戻ろうとする変形を抑え、真空断熱材３の形状を安定化させることができ、保温性能のばらつきを抑えることができる。 As described above, in the present embodiment, the vacuum heat insulating material 3 is restrained from deforming on the outer edge of the vacuum heat insulating material 3 so as to return to the original flat plate shape by residual stress after roll processing, and the shape of the vacuum heat insulating material 3 Can be stabilized, and variation in heat insulation performance can be suppressed.
また、本実施の形態では真空断熱材３の外縁はフィルム状の柔らかいものだが、その外縁にフレーム６を接合することにより外縁部の波打ち等の変形をなくし発泡スチロール断熱材４との接触部の形状を沿わせることにより、接合部の密着が安定することで保温性能を上げることもできる。 Further, in the present embodiment, the outer edge of the vacuum heat insulating material 3 is a soft film-like material, but by joining the frame 6 to the outer edge, deformation such as undulation of the outer edge portion is eliminated, and the shape of the contact portion with the expanded polystyrene heat insulating material 4 By keeping the contact, the heat retention performance can be improved by stabilizing the adhesion of the joint.
（実施の形態２）
図３は、本発明の第２の実施の形態における真空断熱材と発泡スチロール断熱材の接合部の断面図である。
(Embodiment 2)
FIG. 3 is a cross-sectional view of the joint between the vacuum heat insulating material and the polystyrene foam heat insulating material in the second embodiment of the present invention.
図３においてフレーム６の断面形状がＬ字を二つ繋いだ階段状の断面となっており、その一端はタンク外郭に接触する形状としてある。以上のように構成された給湯機の真空断熱材について、以下その動作、作用を説明する。 In FIG. 3, the cross-sectional shape of the frame 6 is a stepped cross-section connecting two L-shapes, and one end of the frame 6 is in contact with the tank outline. About the vacuum heat insulating material of the water heater comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
まず、フレーム６の断面の一端がタンクと線接触することで、フレーム６に接合された真空断熱材３とタンク１外郭は接触することなく一定の空間が保たれている。 First, one end of the cross section of the frame 6 is in line contact with the tank, so that the vacuum heat insulating material 3 joined to the frame 6 and the outer shell of the tank 1 are not in contact with each other and a constant space is maintained.
この空間の空気層により真空断熱材３と高温のタンク１表面との接触による熱伝達での放熱を防ぐことができ、かつ、真空断熱材３の変形を抑えることにより、真空断熱材３の円筒形状および外縁形状が安定し、真空断熱材３と発泡スチロール断熱材４の接合部の密着、および真空断熱材３と貯湯タンク１の間隙がばらつくのを防止し、結果、保温性能のばらつきが低減できる。 The air layer in this space can prevent heat dissipation due to heat transfer due to contact between the vacuum heat insulating material 3 and the surface of the high-temperature tank 1, and suppresses deformation of the vacuum heat insulating material 3. The shape and the outer edge shape are stable, the adhesion of the joint between the vacuum heat insulating material 3 and the expanded polystyrene heat insulating material 4 and the gap between the vacuum heat insulating material 3 and the hot water storage tank 1 are prevented from varying, and as a result, variation in heat retention performance can be reduced. .
（実施の形態３）
図４は、本発明の第３の実施の形態における真空断熱材と発泡スチロール断熱材の接合
部の断面図である。
(Embodiment 3)
FIG. 4 is a cross-sectional view of the joint between the vacuum heat insulating material and the polystyrene foam heat insulating material in the third embodiment of the present invention.
図４においてフレーム６の断面形状がＬ字を二つ繋いだ階段状の断面となっており、その一端はコの字状となっており、コの字形状の間に、真空断熱材３と繋ぐ発泡スチロール断熱材４の端が挟み込まれる構成となっている。以上のように構成された給湯機の真空断熱材について、以下その動作、作用を説明する。 In FIG. 4, the cross-sectional shape of the frame 6 is a step-like cross section connecting two L-shapes, one end of which is a U-shape, and between the U-shape, the vacuum heat insulating material 3 and The end of the polystyrene foam heat insulating material 4 to be connected is sandwiched. About the vacuum heat insulating material of the water heater comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
まず、フレーム６断面の一端をコの字状とすることで、フレーム６の一番内側の部分が発泡スチロール断熱材２の内側にあるため、外側に広がろうとする真空断熱材３を発泡スチロール断熱材４が支えることで変形を抑えることができる。 First, by making one end of the cross section of the frame 6 U-shaped, the innermost part of the frame 6 is inside the foamed polystyrene heat insulating material 2, so the vacuum heat insulating material 3 that is going to spread outside is expanded to the polystyrene foam heat insulating material. Deformation can be suppressed by supporting 4.
また、粘着テープの粘着力だけでなく構造的に真空断熱材３の広がりを抑えることで、真空断熱材３がロール加工後に残留応力で元の平板状に戻ろうとする変形を抑え真空断熱材３の形状を安定化させることができ、結果、真空断熱材３とタンク１表面の離隔距離を一定にし、かつ真空断熱材３と発泡スチロール断熱材４との密着を維持することで保温性能のばらつきを抑えることができる。 Moreover, not only the adhesive strength of the adhesive tape but also the structural expansion of the vacuum heat insulating material 3 is suppressed, so that the vacuum heat insulating material 3 is prevented from deforming to return to the original flat plate shape by residual stress after the roll processing. As a result, the distance between the vacuum heat insulating material 3 and the surface of the tank 1 is kept constant, and the adhesion between the vacuum heat insulating material 3 and the polystyrene foam heat insulating material 4 is maintained, so that the variation in the heat insulation performance can be achieved. Can be suppressed.
以上のように、本発明にかかる給湯機の真空断熱材は、平板状の真空断熱材を加工して所定の形状に変形させる際、その形状を保持するための骨組みとしてフレームを取り付けるため、真空断熱材の形状の安定化が可能となるので、真空断熱材保温断熱が必要な高温部を持つ機器の保温用途にも適用できる。 As described above, the vacuum heat insulating material of the water heater according to the present invention attaches a frame as a framework for maintaining the shape when processing the flat vacuum heat insulating material and transforming it into a predetermined shape. Since the shape of the heat insulating material can be stabilized, the heat insulating material can be applied to a heat insulating application of a device having a high-temperature portion that requires heat insulating heat insulation.
１ 貯湯タンク
２ 筐体
３ 真空断熱材
３ａ 真空断熱材の芯材
３ｂ 真空断熱材の外装材
３ｃ 真空断熱材の外縁
４ 発泡スチロール断熱材
５ 粘着テープ
６ フレーム
DESCRIPTION OF SYMBOLS 1 Hot water storage tank 2 Housing | casing 3 Vacuum heat insulating material 3a Core material of vacuum heat insulating material 3b Exterior material of vacuum heat insulating material 3c Outer edge of vacuum heat insulating material 4 Styrofoam heat insulating material 5 Adhesive tape 6 Frame
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010023891A JP2011163580A (en) | 2010-02-05 | 2010-02-05 | Storage type water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010023891A JP2011163580A (en) | 2010-02-05 | 2010-02-05 | Storage type water heater |
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| Publication Number | Publication Date |
|---|---|
| JP2011163580A true JP2011163580A (en) | 2011-08-25 |
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ID=44594487
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|---|---|
| JP (1) | JP2011163580A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2552094A2 (en) | 2011-07-26 | 2013-01-30 | Kyocera Document Solutions Inc. | Original reading system, image forming system, and image forming apparatus |
| JP2015052411A (en) * | 2013-09-06 | 2015-03-19 | 株式会社コロナ | Heat insulating material structure for hot water storage tank |
| JP2015052412A (en) * | 2013-09-06 | 2015-03-19 | 株式会社コロナ | Heat insulating material structure for hot water storage tank |
| JP2015175530A (en) * | 2014-03-13 | 2015-10-05 | 三菱電機株式会社 | Storage water heater |
| CN109595796A (en) * | 2018-12-27 | 2019-04-09 | 青岛经济技术开发区海尔热水器有限公司 | Manufacturing method of water heater heat-insulating layer and water heater |
| WO2019175929A1 (en) * | 2018-03-12 | 2019-09-19 | 三菱電機株式会社 | Thermal insulation box |
-
2010
- 2010-02-05 JP JP2010023891A patent/JP2011163580A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2552094A2 (en) | 2011-07-26 | 2013-01-30 | Kyocera Document Solutions Inc. | Original reading system, image forming system, and image forming apparatus |
| JP2015052411A (en) * | 2013-09-06 | 2015-03-19 | 株式会社コロナ | Heat insulating material structure for hot water storage tank |
| JP2015052412A (en) * | 2013-09-06 | 2015-03-19 | 株式会社コロナ | Heat insulating material structure for hot water storage tank |
| JP2015175530A (en) * | 2014-03-13 | 2015-10-05 | 三菱電機株式会社 | Storage water heater |
| WO2019175929A1 (en) * | 2018-03-12 | 2019-09-19 | 三菱電機株式会社 | Thermal insulation box |
| CN109595796A (en) * | 2018-12-27 | 2019-04-09 | 青岛经济技术开发区海尔热水器有限公司 | Manufacturing method of water heater heat-insulating layer and water heater |
| CN109595796B (en) * | 2018-12-27 | 2023-10-24 | 青岛经济技术开发区海尔热水器有限公司 | Manufacturing method of heat insulation layer of water heater and water heater |
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