JPH02122155A - Electric hot water heater - Google Patents
Electric hot water heaterInfo
- Publication number
- JPH02122155A JPH02122155A JP27298388A JP27298388A JPH02122155A JP H02122155 A JPH02122155 A JP H02122155A JP 27298388 A JP27298388 A JP 27298388A JP 27298388 A JP27298388 A JP 27298388A JP H02122155 A JPH02122155 A JP H02122155A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- body plate
- drum
- welded
- water heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000003466 welding Methods 0.000 abstract description 18
- 230000002093 peripheral effect Effects 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010041349 Somnolence Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Details Of Fluid Heaters (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は薄板のステンレス鋼で構成された電気温水器に
係り、特にその缶体に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an electric water heater constructed of thin plate stainless steel, and more particularly to a can body thereof.
従来のステンレス鋼を使用した電気温水器は、第６図に
示したように、下部鏡板１、下部鏡板２と胴板８で上下
両端を嵌合して缶体４を構成している。下部鏡板２に取
りつけた給水管座５から缶体４内部に冷水が導かれ、胴
板８の下端部近傍に配設したヒータ取付口６に取付けた
電気ヒータ７で加熱されて下部鏡板ｌに取ゆつけた出湯
管座８から温水となりて流出するものである。９は胴板
８の下方にｄ接等で取付けた缶体脚取付座で、缶体脚ｌ
Ｏがネジ１１、等で固定されている。第７図は、第６図
の上部鏡板１と胴板３の嵌合部の詳細図であって、下部
鏡板ｌの周端部を外方へ拡径した１１面ｌａに胴板８の
上塙部外面８ａが突合うよう嵌合し、当接して突合せ部
３ｂを内方より溶接している。第３図は他の従来例の缶
体構造で、構成は第５図の場合と類似するが、上部鏡板
１′と胴板８′との扱合部は第９図に示す如く相違する
。即ち第９図では、上部鏡板１′の周端部１ ａ／を求
心方向に絞り成形し、該外側端面ｌｂ’に胴板８′の上
端部内面３ ａ／が突付うよう当接して突合せ部８ｂ′
を外方より溶接したものである。In a conventional electric water heater using stainless steel, as shown in FIG. 6, a can body 4 is constructed by fitting a lower end plate 1, a lower end plate 2, and a body plate 8 at both upper and lower ends. Cold water is led into the can body 4 from the water supply pipe seat 5 attached to the lower head plate 2, heated by the electric heater 7 attached to the heater attachment port 6 arranged near the lower end of the body plate 8, and then transferred to the lower head plate l. Hot water flows out from the installed hot water pipe seat 8. 9 is a can leg mounting seat attached to the lower part of the body plate 8 using a d-joint or the like;
O is fixed with screws 11, etc. FIG. 7 is a detailed view of the fitting part between the upper end plate 1 and the body plate 3 in FIG. They are fitted so that the outer surfaces 8a of the wall portions abut against each other, and the abutting portions 3b are welded from the inside. FIG. 3 shows another conventional can body structure, which is similar in construction to that shown in FIG. 5, but the handling portion between the upper end plate 1' and the body plate 8' is different as shown in FIG. 9. That is, in FIG. 9, the peripheral end 1a/ of the upper mirror plate 1' is drawn in the centripetal direction, and the inner surface 3a/ of the upper end of the body plate 8' abuts against the outer end surface lb'. Butt part 8b'
Welded from the outside.
上述の缶体Φ、４′の各構成部品はステンレス製の薄板
により作製されており、薄板の溶接に於いては、高い寸
法精度が要求される。一般に鏡板はプレス加工で形成さ
れるため、比較的高い寸法精度か得ら几るが、胴板は平
板を筒状に曲げ加工し、継目部分を溶接し、円筒とする
もので、通常１ｍ前後の薄板のため、加工精度にバラツ
キを生じ、局部の変形を含む真円度が低トし、寸法精度
が得ら７１．ない。このため二つの問題を生ずる。第１
に、胴板と鏡板との嵌合精度の確保が困１１１１１ため
、溶接した場合の刀ロエＰ＃屁のバラツキにより、溶接
品質が低下する問題がある。第２は、一般に電気温水器
にあっては、使用中の断水等で、缶体内に負圧の生ずる
ことがある。一般に円節殻の負圧に対する座屈強度は、
両端部（電気温水器では、上−Ｆ両睨板と胴板の嵌合部
）が真円を強固に保持する程強く、反対に）ｉ１Ｊ都的
な変形がある場合、急激に低下するという問題がある。Each component of the above-mentioned can bodies Φ and 4' is made of stainless steel thin plates, and high dimensional accuracy is required in welding the thin plates. Generally, the head plate is formed by press working, which results in relatively high dimensional accuracy, but the body plate is made by bending a flat plate into a cylindrical shape and welding the joints, and it is usually around 1 m long. Because it is a thin plate, there will be variations in processing accuracy, the roundness including local deformation will be low, and dimensional accuracy will not be obtained.71. do not have. This gives rise to two problems. 1st
Furthermore, since it is difficult to ensure the fitting precision between the body plate and the end plate, there is a problem in that welding quality deteriorates due to variations in the blade P# fart when welded. Second, in general, in electric water heaters, negative pressure may occur inside the can due to a water outage or the like during use. In general, the buckling strength of a segmented shell against negative pressure is
It is said that if both ends (for electric water heaters, the fitting part between the upper and F side plates and the body plate) are strong enough to firmly maintain a perfect circle, but if there is some deformation, the resistance will decrease rapidly. There's a problem.
又、ＦＡ＜ ８図、第９図の場合、胴板８′と規板ｌ′
とは外方３ｂ′でｔ−ｆ） ＋Ｔするため、内面の８ａ
′近傍では隙間］２．１２’が生じ、隙間腐食を生じゃ
すい欠点がある。特ＶＣ高温水が常に滞溜する隙間１２
では腐茂しやすいものである。In addition, in the case of FA< Figures 8 and 9, the body plate 8' and the limit plate l'
is t-f) +T at the outer side 3b', so the inner side 8a
A gap] 2.12' is formed in the vicinity, which has the disadvantage of causing crevice corrosion. Gap 12 where special VC high temperature water always accumulates
It is easy to rot and grow.
不発明は、上記の問題点を解決するもので、その目的は
、溶接品質の向上をはｂ）るとともに、負圧強度の改善
をは６）る缶体構造を提供するととＫある。The invention is intended to solve the above-mentioned problems, and its purpose is to provide a can structure that improves welding quality b) and 6) improves negative pressure strength.
本発明は、缶体のイ創ｆ、部品の胴板の上下端部の一方
又は双方を外方へ拡径し、上下鏡板の各周端部に嵌合し
溶接して、缶体な構成する。又、ヒータ取付口及び缶体
脚取付座の一方又は双方を、胴板下部の拡径部に近接し
た胴板に配設したことを特徴とする。The present invention is constructed by expanding the diameter of one or both of the upper and lower ends of the body plate of the can body outward, and fitting and welding them to the circumferential ends of the upper and lower head plates to form a can body. do. Further, one or both of the heater attachment port and the can leg attachment seat are disposed on the body plate close to the enlarged diameter portion at the lower part of the body plate.
前記缶体では、外方に拡径した胴板上端部の内側端面に
上部鏡板の周端部の外面を突き当てる。In the can body, the outer surface of the peripheral end of the upper end plate abuts against the inner end surface of the upper end of the body plate whose diameter has expanded outward.
このため胴板上端部の拡径により、上端部の寸法、清度
や真円度が確保できるとともに、元来加工精度のよい、
上部鏡板の周端部と嵌合することで、溶接時の寸法精度
が良好となり、溶接品質が向上する。さらにｉ合部の強
酸向上と真円度の確保により負圧作用時の座屈強度の改
善が図れる。Therefore, by expanding the diameter of the upper end of the body plate, the dimensions, cleanliness and roundness of the upper end can be ensured, and the processing accuracy is originally high.
By fitting with the peripheral edge of the upper mirror plate, dimensional accuracy during welding is improved and welding quality is improved. Furthermore, by improving the strong acidity of the i joint and ensuring roundness, the buckling strength during negative pressure can be improved.
前述の作用は、鋼板下端部を拡・匝し′Ｆ上部板の周端
部と嵌合した場合も全く同様である。The above-mentioned effect is exactly the same when the lower end of the steel plate is expanded and fitted and fitted with the peripheral end of the upper plate 'F.
以下、本発明の一実施例を図面にもとづき詳細に説明す
る。Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.
ｇ１図は本発明の実施例で電気温水器用缶体１８の縦断
面図であり、缶体１８は下部鏡板１４、下部鏡板１５と
胴板１６で上下両端を嵌合し構成しである。冷水は給水
管座１７より入り、胴板１６の一ド方に配設したヒータ
取付口１８に取付けた眠気ヒータ１９で加熱し出湯管座
２０から温水となって流水するものである。２１は缶体
脚２２の取付座で胴板下方に溶接等で取付けである。Figure g1 is a longitudinal sectional view of a can body 18 for an electric water heater according to an embodiment of the present invention, and the can body 18 is composed of a lower end plate 14, a lower end plate 15, and a body plate 16, which are fitted at both upper and lower ends. Cold water enters from a water supply pipe seat 17, is heated by a drowsiness heater 19 attached to a heater attachment port 18 disposed on one side of the body plate 16, and is turned into hot water and flows from a hot water supply pipe seat 20. Reference numeral 21 denotes a mounting seat for the can leg 22, which is attached to the lower part of the body plate by welding or the like.
前記胴板１８は、本笑施例においては材質は厚さ０．８
〜１．５ ｆｆ程夏のステンレス鋼板をロール曲げにて
円筒状とし、継目部を゛ＰＩＧ溶接等により溶接するこ
とで製作する。胴板は円筒にした後、上下端部は外方に
拡径し、該ビ」径は、その内面に上下跳板１４．１５０
周端部の外周面が突き当たる形状としである。In this embodiment, the body plate 18 is made of material with a thickness of 0.8 mm.
It is manufactured by roll bending a stainless steel plate of ~1.5 ff into a cylindrical shape and welding the joints by PIG welding or the like. After the body plate is made into a cylinder, the diameter of the upper and lower ends expands outward, and the diameter of the body plate is 14.15 mm.
The outer circumferential surface of the circumferential end is in a shape that abuts against each other.
一方前記上部税板１４＋は、前記ノ刺板１６と同じステ
ンレス鋼板を椀状にプレス成形し、該周端部はパリ等の
ない体切断きルる。On the other hand, the upper tax plate 14+ is formed by press-forming the same stainless steel plate as the plate 16 into a bowl shape, and the peripheral edge is cut off without any edges.
他方前記−ド部鋭板１５は、前記上部規板１４と同様の
材質、加工方法で成形さ７″Ｌ１該周端部の内径は胴板
１６の下端部内面に突き当たるよう設定されている。On the other hand, the sharp edge plate 15 is formed using the same material and processing method as the upper ruler plate 14, and has an inner diameter of 7″L1 at its circumferential end so as to abut against the inner surface of the lower end of the body plate 16.
上記の如き構成部品番′こおける嵌合部詳細を第２図、
第３図に示す。Figure 2 shows the details of the fitting part for the above component numbers.
It is shown in Figure 3.
第２図は下部鏡板１４と胴板１６の嵌合部を示すもので
、胴板１６の上端部は、第１テーパ部２３と第２テーパ
部２４及び拡径部２５より形成されている。上部鏡板１
４の周端部の外周囲２６を前記胴板１６の上端部の２４
．２５に嵌合挿入し、先端２７を第１テーパ部２８内面
に矢き合せ、突き合せｉ！ｌ１ＳＺ８を缶体内部より溶
接する。このとさ、胴板１６の上端部は外方に拡径しで
あるので、胴板１６は、加工精度にバラツキがあっても
、上部鏡板１４との嵌合部となる上端部の寸法精度や真
円度が確保できるので、嵌合精度が良好となり、溶接品
質が向上する。FIG. 2 shows a fitting portion between the lower mirror plate 14 and the body plate 16, and the upper end portion of the body plate 16 is formed by a first tapered portion 23, a second tapered portion 24, and an enlarged diameter portion 25. Upper mirror plate 1
The outer periphery 26 of the peripheral end of the body plate 16 is
．． 25, align the tip 27 with the inner surface of the first tapered part 28, and butt i! Weld l1SZ8 from inside the can. In this case, since the upper end of the body plate 16 is outwardly expanded in diameter, the upper end of the body plate 16, which is the fitting part with the upper end plate 14, has dimensional accuracy even if there are variations in processing accuracy. Since it is possible to ensure roundness and roundness, the fitting accuracy is good and the welding quality is improved.
第３図は上部鏡板１５と胴板１６との嵌合部を示すもの
で、前記と同ａｍ板１６の下端部にはテーパ部２９と外
方への拡径部８０より形成さｆ”Ｌ、拡径部８０の先４
８１は、上部鏡板１５のテーパ部外面８２に突き幽で、
突き当てｆＪ３３で缶体の外面より溶接する。溶接品質
に関する作用・効果は前述の第２図の場合と同様である
。FIG. 3 shows the fitting part between the upper mirror plate 15 and the body plate 16, and the lower end of the am plate 16 is formed with a tapered part 29 and an outwardly expanding diameter part 80. , the tip 4 of the enlarged diameter portion 80
81 is protruded from the outer surface 82 of the tapered part of the upper end plate 15;
Weld from the outside of the can body using abutment fJ33. The actions and effects regarding welding quality are the same as in the case of FIG. 2 described above.
以上の如くして製作された缶体１８は、溶接部の加工精
度が向上し品質のすぐれた缶体が提供できるが、同時に
缶体１８の負圧強度が向上するものである。即ち、磁気
温水器にはｄ１水や凍結の給水不能の状態で、＃湯口（
通常は給湯用蛇口）が嵯気温水器の設置位置より低い場
合、缶体１８の内部には０．５１ｇ／ｃｍ前後の負圧が
発生するが、１ｍＭ程度の薄板で構成するステンレス製
缶体にあっては、該負圧強度の確保は大きな課題である
。負圧強度を確保するには、缶体１８の真円度を保持す
ることが必要である。試験、貼釆の一例を示せば１、・
４み１１で適切に補強した胴板に同一厚みの上下鏡板を
溶接して構成した高さ約１５００ａｇ、胴板径約５９０
Ｍの母体において、第２図、笛８図の６溶接部８３．２
８を真円の補強板で保持した場合、０．８ ｋｔｉ ／
ｃｍ２の負圧強度があった。しかし、補強板を取り除い
た場合０．８５ ｋｇ ／ｃｍ２に低下する。低下の要
因は、溶接部２８．２８のねじれによる真円度の吐下Ｖ
こよるところが太きい。The can body 18 manufactured as described above can provide a can body of excellent quality with improved processing accuracy of the welded portion, and at the same time, the negative pressure strength of the can body 18 is improved. In other words, when the magnetic water heater cannot be supplied with d1 water or frozen water, the # sprue (
If the hot water faucet (normally a hot water supply faucet) is lower than the installation position of the water heater, a negative pressure of around 0.51 g/cm will occur inside the can body 18, but the stainless steel can made of a thin plate of about 1 mm Securing the negative pressure strength is a major issue. In order to ensure negative pressure strength, it is necessary to maintain the roundness of the can body 18. An example of testing and pasting is 1.
The height is approximately 1500ag, and the body plate diameter is approximately 590mm, which is constructed by welding the upper and lower mirror plates of the same thickness to the body plate that has been appropriately reinforced with 4 mm 11.
In the base body of M, 6 welding part 83.2 in Fig. 2 and Fig. 8
8 is held with a perfect circular reinforcing plate, 0.8 kti/
There was a negative pressure intensity of cm2. However, if the reinforcing plate is removed, the weight decreases to 0.85 kg/cm2. The cause of the decrease is the roundness drop V due to twisting of the welded part 28.28
The parts are thick.
本発明は、上下跳板の周端部の寸法管理を行９一方、加
工上寸法のバラツキ、％に真円度の出ない胴板の上下端
部を第２図、第３図の２５．８０に示すごとく拡径した
嵌合構造としたので、真円度の確保が出来やすく、負圧
強度の低下が防止できるものである。The present invention manages the dimensions of the circumferential ends of the upper and lower springboards.9 On the other hand, the upper and lower ends of the trunk board, which have irregularities due to machining and are out of roundness, are controlled at 25.80% in Figures 2 and 3. Since the fitting structure has an enlarged diameter as shown in the figure, roundness can be easily ensured and a decrease in negative pressure strength can be prevented.
又負圧強度試験の実施結果では、負圧時の胴板の破壊の
起点は、電気温水器用缶体の構成上取付を必要とするヒ
ータ取付口１８や缶体ｇｌ取付座２１の溶接等ｒｃよる
局部的変形の発生部位に生ずることが多い。In addition, the results of the negative pressure strength test indicate that the origin of the destruction of the body plate during negative pressure is due to the welding of the heater mounting port 18 and the can body GL mounting seat 21, which are required due to the construction of the electric water heater can body. It often occurs at sites where local deformation occurs due to deformation.
本発明は、第４図、第５図の詳細図に示す如く上記の局
部的変形の発生しやすい部位を可能な限り胴板１６の下
端部拡径部８０に近接して配設したので、局部的変形を
減少できるものである。In the present invention, as shown in the detailed drawings of FIGS. 4 and 5, the above-mentioned portion where local deformation is likely to occur is disposed as close as possible to the enlarged diameter portion 80 at the lower end of the body plate 16. This can reduce local deformation.
又、第２図の溶隈都２８は缶坏円凹りり溶接しであるの
で、突き合せ部の接水面には隙間腐食の発生がなくなる
。Further, since the welding cap 28 in FIG. 2 is welded with a can-shaped concave weld, crevice corrosion will not occur on the water-contacted surfaces of the abutting portions.
上記実施例では、胴板の両端部とも拡径する場合を示し
たが、内方・＼の縮径によりその効果の一部な連成して
もよい。同様にｔ部跳板の周端部を内方ｅこ縮径しても
よい。又、谷構成部品の材質等も実施例に限定きれるも
のではない。In the above embodiment, the case where the diameter of both ends of the body plate is expanded is shown, but a part of the effect may be achieved by reducing the diameter inwardly. Similarly, the diameter of the circumferential end of the t-section springboard may be reduced inward. Furthermore, the materials of the valley components are not limited to the embodiments.
本発明は、上下部跳板と胴板の上下端部を突き合せて溶
接し缶体を構成するものにおいて、胴板の上下端部を拡
径（７たので、胴体に加工精度のバラツキがあっても、
上下部鏡板の周端部での寸法精度や真円度が確保できる
ので、溶接品質が向上するとともに、負圧強度の改善が
はかれる。In the present invention, in which the upper and lower springboards and the upper and lower ends of the body plate are butted and welded to form a can body, the upper and lower ends of the body plate are enlarged in diameter (7), which causes variations in processing accuracy on the body. Even though
Since dimensional accuracy and roundness can be ensured at the peripheral ends of the upper and lower head plates, welding quality is improved and negative pressure strength is improved.
又、局部的に変形の、生じゃすいヒータ取付口や缶体脚
取付座は、胴板の一ド端拡径部に近接して配設したので
、変形が減少、このため負圧強度の低下が防止できる。In addition, the heater attachment port and can body leg attachment seat, which are locally deformed, are placed close to the enlarged diameter portion at one end of the body plate, reducing deformation and improving negative pressure strength. Deterioration can be prevented.
第１図は本発明の実施例を示す缶体の縦断面図、第２図
、第３図はＩＪ接部の詳細を示す拡大断面図である。第
４図は、ヒータ取付口の取付図、第５図は缶体脚取付座
の取付を示す要部拡大図である。第６図、第３図は、従
来のステンレス鋼を使用した４気温水器用缶本の縦断面
図、第７図、第９図は−ｆ：几ぞれの溶接部の詳細を示
す拡大断面図である。
１８・・・缶体 １４・・・上部鏡板 １５・・・
下部１〇−
鏡板
１６・・・胴板
１８・・・ヒータ取付口
２２・・・缶体脚取付座。
り沈ミ尽六
Ｄ丑￥Ｓ宕バFIG. 1 is a longitudinal sectional view of a can body showing an embodiment of the present invention, and FIGS. 2 and 3 are enlarged sectional views showing details of the IJ contact portion. FIG. 4 is an installation diagram of the heater attachment port, and FIG. 5 is an enlarged view of the main parts showing the installation of the can body leg attachment seat. Figures 6 and 3 are longitudinal cross-sectional views of conventional stainless steel cans for 4-temperature water heaters, and Figures 7 and 9 are enlarged cross-sections showing details of the -f: welded parts. It is a diagram. 18... Can body 14... Upper end plate 15...
Lower part 10 - Mirror plate 16...Body plate 18...Heater mounting port 22...Can body leg mounting seat. RishinmijinrokuDushi￥S宕ba
Claims (1)
を形成するものにおいて、胴板の上下端部の少なくとも
一方を拡径したことを特徴とする電気温水器。 ２、特許請求範囲第１項記載のものにおいて、外方に拡
径した胴板上端部の内面に上部鏡板の周端部を突き当て
、両者の突き合せ部を内方より溶接することを特徴とす
る電気温水器。 ３、特許請求範囲第１項記載のものにおいて、外方に拡
径した胴板下端部の内面に、下部鏡板の周端部を突き当
て、両者の突き合せ部を外方より溶接することを特徴と
する電気温水器。 ４、特許請求範囲第３項記載のものにおいて、外方に拡
径した胴板下端部の拡径部に近接して、ヒータ取付口及
び缶体脚取付座のいずれか一方を配設したことを特徴と
する電気温水器。[Scope of Claims] 1. An electric appliance in which the upper and lower ends of the upper and lower head plates and the upper and lower ends of the body plate are abutted and welded to form a can body, characterized in that at least one of the upper and lower ends of the body plate is enlarged in diameter. Water heater. 2. The product described in claim 1, characterized in that the circumferential end of the upper end plate is abutted against the inner surface of the upper end of the body plate whose diameter has expanded outward, and the abutted portion of the two is welded from the inside. Electric water heater. 3. In the product described in claim 1, the circumferential end of the lower end plate is abutted against the inner surface of the lower end of the body plate whose diameter has expanded outward, and the abutted portion of the two is welded from the outside. Features: Electric water heater. 4. In the product described in claim 3, either the heater attachment port or the can leg attachment seat is disposed close to the expanded diameter portion of the lower end of the body plate whose diameter expands outward. An electric water heater featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27298388A JPH02122155A (en) | 1988-10-31 | 1988-10-31 | Electric hot water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27298388A JPH02122155A (en) | 1988-10-31 | 1988-10-31 | Electric hot water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02122155A true JPH02122155A (en) | 1990-05-09 |
Family
ID=17521511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27298388A Pending JPH02122155A (en) | 1988-10-31 | 1988-10-31 | Electric hot water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02122155A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008285200A (en) * | 2007-05-17 | 2008-11-27 | Nisshin Steel Co Ltd | Stainless steel can |
| JP2009063277A (en) * | 2007-09-10 | 2009-03-26 | Panasonic Corp | Hot water storage tank and heat pump water heater using it |
| JP2012021743A (en) * | 2010-07-16 | 2012-02-02 | Tiger Vacuum Bottle Co Ltd | Hot water storage tank |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538274A (en) * | 1976-07-10 | 1978-01-25 | Sanyo Electric Co | Water container |
| JPS5741537A (en) * | 1980-08-27 | 1982-03-08 | Toshiba Corp | Stainless steel tank for water heating equipment |
-
1988
- 1988-10-31 JP JP27298388A patent/JPH02122155A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538274A (en) * | 1976-07-10 | 1978-01-25 | Sanyo Electric Co | Water container |
| JPS5741537A (en) * | 1980-08-27 | 1982-03-08 | Toshiba Corp | Stainless steel tank for water heating equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008285200A (en) * | 2007-05-17 | 2008-11-27 | Nisshin Steel Co Ltd | Stainless steel can |
| JP2009063277A (en) * | 2007-09-10 | 2009-03-26 | Panasonic Corp | Hot water storage tank and heat pump water heater using it |
| JP2012021743A (en) * | 2010-07-16 | 2012-02-02 | Tiger Vacuum Bottle Co Ltd | Hot water storage tank |
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