JPH11257831A - Refrigerator - Google Patents
RefrigeratorInfo
- Publication number
- JPH11257831A JPH11257831A JP6339798A JP6339798A JPH11257831A JP H11257831 A JPH11257831 A JP H11257831A JP 6339798 A JP6339798 A JP 6339798A JP 6339798 A JP6339798 A JP 6339798A JP H11257831 A JPH11257831 A JP H11257831A
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- heater
- defrosting
- refrigerator
- glass
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、冷媒に可燃性冷
媒を用いた冷蔵庫に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator using a flammable refrigerant as a refrigerant.
【０００２】[0002]
【従来の技術】一般に冷蔵庫は、蒸発器において熱交換
された冷気がファンによって庫内へ送り出されるように
なっている。2. Description of the Related Art Generally, in a refrigerator, cool air that has undergone heat exchange in an evaporator is sent into a refrigerator by a fan.
【０００３】蒸発器は、運転中に霜が着霜するところか
ら、蒸発器の近くに配置された除霜用ガラス管ヒータの
輻射熱によって除霜が行なわれる。In an evaporator, defrosting is performed by radiant heat from a glass tube heater for defrosting disposed near the evaporator, where frost forms during operation.
【０００４】除霜用ガラス管ヒータの概要は、例えば、
特開平９−６１０４１号公報で示す如く、両端が密封さ
れた円筒状のガラス管内にヒータが組込まれた構造とな
っているものである。The outline of a glass tube heater for defrosting is, for example, as follows.
As shown in JP-A-9-61041, a heater is incorporated in a cylindrical glass tube having both ends sealed.
【０００５】[0005]
【発明が解決しようとする課題】ところで、冷蔵庫の冷
媒には、安全性の面からＲ１３４ａなどの不燃性冷媒が
用いられているが、近年は、地球温暖化防止という観点
から地球温暖化係数（ＧＷＰ）の低い炭化水素系冷媒が
注目されている。By the way, a non-combustible refrigerant such as R134a is used as a refrigerant for a refrigerator from the viewpoint of safety. Attention has been paid to hydrocarbon-based refrigerants having a low GWP.
【０００６】炭化水素系冷媒は、強可燃性であるため、
冷蔵庫の冷媒として使用した場合、安全対策を施す必要
がある。[0006] Since hydrocarbon-based refrigerants are highly flammable,
When used as a refrigerator refrigerant, safety measures must be taken.
【０００７】特に、何らかの原因で可燃性冷媒が冷蔵庫
内部に漏洩した場合には、冷蔵庫の庫内は、密閉状態に
あるために高い濃度で滞留しやすい。冷蔵庫内に発火源
があると、引火・爆発を起こす可能性があり、前記した
除霜用ガラス管ヒータが発火源となり易い。[0007] In particular, if the flammable refrigerant leaks into the refrigerator for some reason, the refrigerator is likely to stay at a high concentration because the refrigerator is in a closed state. If there is an ignition source in the refrigerator, it may cause ignition or explosion, and the above-mentioned glass tube heater for defrosting is likely to be an ignition source.
【０００８】特開平９−６１０４１号に示される除霜用
ガラス管ヒータは、両端が密閉されているため、可燃性
冷媒が直接ヒータに接触することがなく引火・爆発の危
険性がないと考えられる。しかしながら、運転中は、ヒ
ータによってガラス管内の空気が加熱されることによ
り、管内圧力が上昇する。このため、ガラス管が破裂
し、漏洩冷媒がヒータによって引火・爆発する危険性が
ある。The glass tube heater for defrosting disclosed in Japanese Patent Application Laid-Open No. Hei 9-61041 is considered to have no danger of ignition or explosion because the flammable refrigerant does not directly contact the heater because both ends are sealed. Can be However, during operation, the air in the glass tube is heated by the heater, so that the pressure in the tube increases. For this reason, there is a risk that the glass tube will burst and the leaked refrigerant will be ignited or exploded by the heater.
【０００９】また、ガラス管の表面温度が、何等かの要
因で炭化水素系冷媒であるＲ２９０やＲ６００ａなどの
発火温度（４００〜５００℃）以上となった時に、ガラ
ス管の表面で引火し、爆発する可能性もある。Further, when the surface temperature of the glass tube becomes higher than the ignition temperature (400 to 500 ° C.) of the hydrocarbon-based refrigerant R290 or R600a for some reason, the surface of the glass tube ignites, It can explode.
【００１０】そこで、この発明は、可燃性冷媒が万一漏
洩したとしても引火・爆発の恐れのない除霜用ガラス管
ヒータを用いた冷蔵庫を提供することを目的としてい
る。Accordingly, an object of the present invention is to provide a refrigerator using a glass tube heater for defrosting, which does not cause a fire or explosion even if a flammable refrigerant leaks.
【００１１】[0011]
【課題を解決するための手段】前記目的を達成するため
に、この発明は、圧縮機から吐出された冷媒が凝縮器，
絞り装置，蒸発器を通り、再び圧縮機に戻る冷凍サイク
ルを備え、冷媒に可燃性冷媒を用いた冷蔵庫において、
前記蒸発器の霜取りを行なう除霜用ガラス管ヒータのガ
ラス管内を、真空にする。According to the present invention, a refrigerant discharged from a compressor is provided with a condenser,
A refrigerator using a flammable refrigerant as a refrigerant is provided with a refrigeration cycle that returns to the compressor through the expansion device and the evaporator.
The inside of the glass tube of the glass tube heater for defrosting that defrosts the evaporator is evacuated.
【００１２】これにより、ヒータに通電しても管内の気
圧が上昇することがないので、ガラス管の破裂を防止で
きると共に、さらにガラス管内空気を介してガラス管が
加熱されるのを防止するため、ガラス管の表面温度を低
く抑えることができる。Thus, even if the heater is energized, the pressure in the tube does not rise even when the heater is energized, so that the glass tube can be prevented from being ruptured, and further, the glass tube can be prevented from being heated via the air in the glass tube. The surface temperature of the glass tube can be kept low.
【００１３】また、この発明にあっては、ガラス管に強
化ガラスを使用する。これにより、ガラス管破損による
ヒータの露出が起こりにくくなる。In the present invention, tempered glass is used for the glass tube. This makes it difficult for the heater to be exposed due to breakage of the glass tube.
【００１４】また、この発明にあっては、太さの異なる
複数のガラス管によって、ヒータを包み込む構成とす
る。これにより、熱伝達・輻射による外側のガラス管表
面温度の上昇を抑制できる。またヒータが複数のガラス
管で覆われているため、ガラス管破損によるヒータの露
出が起こりにくい。Further, according to the present invention, the heater is wrapped by a plurality of glass tubes having different thicknesses. Thereby, it is possible to suppress an increase in the surface temperature of the outer glass tube due to heat transfer and radiation. Further, since the heater is covered with the plurality of glass tubes, exposure of the heater due to breakage of the glass tube does not easily occur.
【００１５】また、この発明にあっては、ガラス管の表
面温度を検知する手段を擁し、ガラス管表面温度が可燃
性冷媒の発火温度未満となるようヒータの入力を制御す
る。これにより、ガラス管表面温度上昇による漏洩冷媒
の発火を防止する。Further, the present invention has means for detecting the surface temperature of the glass tube, and controls the input of the heater so that the glass tube surface temperature becomes lower than the ignition temperature of the flammable refrigerant. This prevents ignition of the leaking refrigerant due to a rise in the surface temperature of the glass tube.
【００１６】また、この発明にあっては、ガラス管の破
損を検知する手段を擁し、ガラス管の破損を検知したと
きにヒータの通電を停止する。これにより、ガラス管破
損によりヒータが露出したとき、冷媒漏れによる引火・
爆発を未然に防げる。Further, the present invention has means for detecting breakage of the glass tube, and stops the energization of the heater when the breakage of the glass tube is detected. As a result, when the heater is exposed due to breakage of the glass tube,
Explosion can be prevented.
【００１７】また、この発明にあっては、ガラス管内の
気圧を検知する手段を擁し、ガラス管内気圧の過度の上
昇を検知したときにヒータの通電を停止する。これによ
り、ガラス管内気圧の上昇によるガラス管表面温度上
昇、ガラス管破損によるヒータ露出による、漏洩冷媒の
引火・爆発を防止する。Further, the present invention has means for detecting the atmospheric pressure in the glass tube, and stops the energization of the heater when an excessive increase in the atmospheric pressure in the glass tube is detected. This prevents ignition and explosion of the leaked refrigerant due to an increase in the surface temperature of the glass tube due to an increase in the internal pressure of the glass tube and exposure of the heater due to breakage of the glass tube.
【００１８】また、この発明にあっては、ガラス管の表
面温度を検知する手段を擁し、ガラス管表面の過熱を検
知したときにヒータの通電を停止する。これによりガラ
ス管表面温度上昇による漏洩冷媒の引火・爆発を防止す
る。Further, the present invention has means for detecting the surface temperature of the glass tube, and stops energization of the heater when overheating of the surface of the glass tube is detected. This prevents ignition and explosion of the leaked refrigerant due to a rise in the surface temperature of the glass tube.
【００１９】[0019]
【発明の実施の形態】以下、図１乃至図３の図面を参照
しながらこの発明の実施形態について具体的に説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to FIGS.
【００２０】図２において、１は冷蔵庫３の冷蔵庫本体
を示している。冷蔵庫本体１は、外箱、内箱、断熱材か
らなり、前面には断熱扉５が取り付けられる。冷蔵庫本
体１の庫内を冷却するための冷却装置の構成要素の内、
圧縮機７、凝縮器（図示していない）等は機械室９内
に、蒸発器１１は庫内に取り付けられる。In FIG. 2, reference numeral 1 denotes a refrigerator main body of the refrigerator 3. The refrigerator body 1 includes an outer box, an inner box, and a heat insulating material, and a heat insulating door 5 is attached to a front surface. Among the components of the cooling device for cooling the inside of the refrigerator main body 1,
The compressor 7, the condenser (not shown) and the like are installed in the machine room 9, and the evaporator 11 is installed in the refrigerator.
【００２１】冷蔵庫本体１内は、冷蔵室・冷凍室・野菜
室などの食品室１３と、その背面側には、冷却装置を構
成する蒸発器１１と各食品室１３へ冷気を送るためのダ
クト１５から構成される。冷却装置の冷媒としては、地
球温暖効果の小さいＲ２９０（プロパン）やＲ６００ａ
（イソブタン）などの炭化水素系冷媒が用いられてい
る。Inside the refrigerator body 1, a food compartment 13 such as a refrigerator compartment, a freezing compartment, a vegetable compartment, etc., and on the back side thereof, an evaporator 11 constituting a cooling device and a duct for sending cool air to each food compartment 13. 15 is comprised. R290 (propane) and R600a, which have low global warming effects, are used as refrigerants for the cooling device.
Hydrocarbon refrigerants such as (isobutane) have been used.
【００２２】蒸発器１１の上部には、送風用のファン１
７が設けられ運転中は、ファン１７の回転によって食品
室１３内の空気が蒸発器１１の下部から吸込まれ、蒸発
器１１を通過する時に熱交換されて冷却された後、各食
品室１３へ送り込まれるようになっている。Above the evaporator 11, a fan 1 for blowing air is provided.
During operation, the air in the food compartment 13 is sucked in from the lower part of the evaporator 11 by the rotation of the fan 17, heat is exchanged when passing through the evaporator 11, and is cooled. It is to be sent.
【００２３】蒸発器１１の下部には、蒸発器１１に着霜
した霜を取除く除霜用ガラス管ヒータ１９が配置されて
いる。Below the evaporator 11, a glass tube heater 19 for defrosting which removes frost formed on the evaporator 11 is arranged.
【００２４】除霜用ガラス管ヒータ１９は、図１に示す
如く、円筒状のガラス管２１と、ガラス管２１の両端を
密封するキャップ２３と、ガラス管２１内に配置された
ヒータ２５とから成り、ヒータ２５は、制御部２７によ
って制御されるようになっている。As shown in FIG. 1, the defrosting glass tube heater 19 includes a cylindrical glass tube 21, a cap 23 for sealing both ends of the glass tube 21, and a heater 25 arranged in the glass tube 21. That is, the heater 25 is controlled by the control unit 27.
【００２５】ガラス管２１は、破損の起きにくい強化ガ
ラスが用いられており、内部は真空状態となっている。
ガラス管２１内を真空とする手段は、ガラス管１９の組
立工程を真空条件下で行う方法と、他には、図３に示す
如く、ゴム等の材質で作られたキャップ２３内に吸引管
２９を差し込み、吸引口３１に接続した図外の真空ポン
プによって吸引しガラス管２１内を所定の真空度にした
後、栓３３を取外した挿入口３５から硬化性のシール剤
３７を吸引管２９内へ充填して端部を密封後、キャップ
２５から突出した吸引管２９をカットする方法がある。The glass tube 21 is made of tempered glass that is hardly damaged, and has a vacuum inside.
Means for evacuating the glass tube 21 include a method in which the assembling process of the glass tube 19 is performed under vacuum conditions. Alternatively, as shown in FIG. 3, a suction tube is provided in a cap 23 made of a material such as rubber. After the glass tube 21 is evacuated by a vacuum pump connected to the suction port 31 and a predetermined degree of vacuum is applied to the glass tube 21, a hardening sealant 37 is removed from the insertion port 35 with the stopper 33 removed. There is a method of cutting the suction tube 29 protruding from the cap 25 after filling the inside and sealing the end.
【００２６】ガラス管２１の表面には、表面温度を検知
する温度センサ３７が設けられており、この温度センサ
３７から検知される温度が、炭化水素系冷媒の発火温度
となる設定標準値を越えた場合には、制御部２７によっ
てヒータ２５の通電をオフする。また、ガラス管２１内
には、内部の真空度を検知する検知センサ３９が設けら
れており、この検知センサ３９から検知される真空度
が、ガラス管２１の破損又は漏れによる真空度の減少に
よって設定基準値を越えると、制御部２７によって前記
ヒータ２５の通電をオフする。A temperature sensor 37 for detecting a surface temperature is provided on the surface of the glass tube 21. The temperature detected by the temperature sensor 37 exceeds a set standard value which is the ignition temperature of the hydrocarbon-based refrigerant. In this case, the control unit 27 turns off the power supply to the heater 25. Further, a detection sensor 39 for detecting the degree of vacuum inside the glass tube 21 is provided. The degree of vacuum detected by the detection sensor 39 is reduced by a decrease in the degree of vacuum caused by breakage or leakage of the glass tube 21. If the set reference value is exceeded, the control unit 27 turns off the power supply to the heater 25.
【００２７】かかる冷蔵庫によれば、除霜時において、
ガラス管ヒータ１９からの輻射熱は蒸発器１１を暖め、
除霜が行なわれる。According to such a refrigerator, at the time of defrosting,
Radiant heat from the glass tube heater 19 warms the evaporator 11,
Defrosting is performed.
【００２８】この運転時において、ガラス管２１内は、
真空状態が確保されているため、管内圧力が上昇する恐
れはない。また、ガラス管２１の表面温度が必要以上に
上昇する恐れもない。万一、ガラス管２１内の圧力異常
及びガラス管２１の表面温度異常が起きると、各検知セ
ンサ３７，３９が働き、制御部２７によってヒータ２５
への通電をオフとする。これにより、可燃性冷媒が漏洩
する事態が生じても引火・爆発等の事故を未然に防ぐこ
とが可能となる。During this operation, the inside of the glass tube 21
Since the vacuum state is ensured, there is no possibility that the pressure in the pipe will increase. Further, there is no possibility that the surface temperature of the glass tube 21 rises more than necessary. If a pressure abnormality in the glass tube 21 or a surface temperature abnormality of the glass tube 21 occurs, the detection sensors 37 and 39 operate and the control unit 27 controls the heater 25.
Turn off the power to the This makes it possible to prevent accidents such as ignition and explosion even before the flammable refrigerant leaks.
【００２９】なお、除霜用ガラス管ヒータ１９は前記実
施形態に特定されない。例えば、図４に示す如く、ガラ
ス管２１を円筒形に形成し、ガラス管２１の両端に、キ
ャップ４１，４１を挿入して閉塞し、内部にヒータ２５
を設けた除霜用ガラス管ヒータ１９の構造としてもよ
い。The defrosting glass tube heater 19 is not specified in the above embodiment. For example, as shown in FIG. 4, the glass tube 21 is formed in a cylindrical shape, and caps 41 are inserted and closed at both ends of the glass tube 21, and the heater 25 is provided inside.
The defrosting glass tube heater 19 provided with the structure may be used.
【００３０】あるいは、図５に示す如く、ガラス管２１
の両端に、左右一体型のキャップ４３を装着し、内部に
ヒータ２５を設けた除霜用ガラス管ヒータ１９の構造と
してもよい。Alternatively, as shown in FIG.
A defrosting glass tube heater 19 having left and right integrated caps 43 attached to both ends thereof and a heater 25 provided inside may be used.
【００３１】あるいは、図６に示す如く、ガラス管２１
をＵ字状に屈曲させることにより、Ｕ字状のガラス管２
１の両端を１つのキャップ４５で装着させ、内部にヒー
タ２５を設けた除霜用ガラス管ヒータ１９の構造として
もよい。Alternatively, as shown in FIG.
Is bent into a U-shape to form a U-shaped glass tube 2.
The both ends of one may be attached with one cap 45, and the structure of the glass tube heater for defrost 19 in which the heater 25 is provided inside may be adopted.
【００３２】あるいは、図７に示す如く、径の異なる複
数のガラス管２１によって多重構造とし、その両端にキ
ャップ４７（一方のみ図示）を装着する一方、中心のガ
ラス管２１内にヒータ２５を設けた除霜用ガラス管ヒー
タ１９の構造としてもよい。Alternatively, as shown in FIG. 7, a multiple structure is formed by a plurality of glass tubes 21 having different diameters, and caps 47 (only one is shown) are attached to both ends thereof, and a heater 25 is provided in the center glass tube 21. Alternatively, the structure of the defrost glass tube heater 19 may be employed.
【００３３】この実施形態の場合には、外側のガラス管
２１が破損しても、発火源となるヒータ２５が直接露出
することがなくなり、安全性の面で大変好ましいものと
なる。In the case of this embodiment, even if the outer glass tube 21 is broken, the heater 25 serving as an ignition source is not directly exposed, which is very preferable in terms of safety.
【００３４】あるいは、図８に示す如く、ガラス管２１
の半分をガラス製２１ａ、もう半分を輻射熱を反射する
金属製２１ｂとし、その両端にキャップ４９を装着し、
内部にヒータ２５を設けた除霜用ガラス管ヒータ１９の
構造としてもよい。Alternatively, as shown in FIG.
Is made of glass 21a, the other half is made of metal 21b that reflects radiant heat, and caps 49 are attached to both ends thereof.
The defrosting glass tube heater 19 having a heater 25 therein may be used.
【００３５】この実施形態の場合には、輻射熱は一方向
に集中するため、蒸発器１１は効率のよい輻射熱が得ら
れる。In this embodiment, the radiant heat is concentrated in one direction, so that the evaporator 11 can obtain efficient radiant heat.
【００３６】あるいは、図９に示す如く、ガラス管２１
の半分に、輻射熱を反射する金属膜５１を蒸着し、この
両端にキャップ５３を装着し、内部にヒータ２５を設け
た除霜用ガラス管ヒータ１９の構造としてもよい。Alternatively, as shown in FIG.
A metal film 51 that reflects radiant heat may be deposited on one half of the substrate, caps 53 may be attached to both ends of the metal film 51, and the heater 19 may be provided inside the glass tube heater 19 for defrosting.
【００３７】この実施形態の場合には、輻射熱は一方向
に集中するため、蒸発器１１は効率のよい輻射熱が得ら
れる。In this embodiment, since the radiant heat is concentrated in one direction, the evaporator 11 can obtain efficient radiant heat.
【００３８】[0038]
【発明の効果】以上、説明したように、この発明の冷蔵
庫によれば、次のような効果を奏する。 地球温暖化係数の小さい炭化水素系冷媒の使用が可能
となる。 可燃性冷媒が漏洩する事態が生じても、ガラス管ヒー
タの異常に起因する引火・爆発事故を未然に防ぐことが
できる。As described above, according to the refrigerator of the present invention, the following effects can be obtained. It becomes possible to use a hydrocarbon-based refrigerant having a low global warming potential. Even if the flammable refrigerant leaks, it is possible to prevent a fire or explosion accident due to an abnormality of the glass tube heater.
【図１】この発明にかかる除霜用ガラス管ヒータの概要
説明図。FIG. 1 is a schematic explanatory view of a glass tube heater for defrost according to the present invention.
【図２】この発明にかかる冷蔵庫の概要断面図。FIG. 2 is a schematic sectional view of a refrigerator according to the present invention.
【図３】除霜用ガラス管内を真空にする説明図。FIG. 3 is an explanatory diagram for evacuating the inside of a defrosting glass tube.
【図４】ガラス管の両端にキャップを嵌挿した除霜用ガ
ラス管ヒータの説明図。FIG. 4 is an explanatory view of a glass tube heater for defrosting in which caps are fitted to both ends of a glass tube.
【図５】キャップを一体型とした除霜用ガラス管ヒータ
の説明図。FIG. 5 is an explanatory view of a glass tube heater for defrosting in which a cap is integrated.
【図６】Ｕ字状のガラス管とした除霜用ガラス管ヒータ
の説明図。FIG. 6 is an explanatory diagram of a glass tube heater for defrosting, which is a U-shaped glass tube.
【図７】多重構造のガラス管とした除霜用ガラス管ヒー
タの説明図。FIG. 7 is an explanatory view of a glass tube heater for defrosting having a multi-structure glass tube.
【図８】ガラス管の半分を輻射熱反射用の金属製とした
除霜用ガラス管ヒータの説明図。FIG. 8 is an explanatory view of a defrosting glass tube heater in which half of the glass tube is made of metal for radiant heat reflection.
【図９】ガラス管の内側半分を輻射熱反射用の金属を蒸
着した除霜用ガラス管ヒータの説明図。FIG. 9 is an explanatory view of a defrosting glass tube heater in which a metal for radiant heat reflection is deposited on the inner half of the glass tube.
１１ 蒸発器 １９ 除霜用ガラス管ヒータ ２１ ガラス管 ２５ ヒータ 11 evaporator 19 glass tube heater for defrost 21 glass tube 25 heater
Claims (7)
り装置，蒸発器を通り、再び圧縮機に戻る冷凍サイクル
を備え、冷媒に可燃性冷媒を用いた冷蔵庫において、前
記蒸発器の霜取りを行なう除霜用ガラス管ヒータのガラ
ス管内を、真空にしたことを特徴とする冷蔵庫。1. A refrigerator using a combustible refrigerant as a refrigerant, comprising a refrigeration cycle in which refrigerant discharged from a compressor passes through a condenser, a throttle device, and an evaporator, and returns to the compressor again. A refrigerator in which the inside of the glass tube of the glass tube heater for defrosting is evacuated.
化ガラスを用いることを特徴とする請求項１記載の冷蔵
庫。2. The refrigerator according to claim 1, wherein tempered glass is used for a glass tube of the glass tube heater for defrosting.
重構造にすることを特徴とする請求項１記載の冷蔵庫。3. The refrigerator according to claim 1, wherein the glass tube of the glass tube heater for defrosting has a multi-layer structure.
温度が冷媒発火温度未満となるように、ヒータ入力を制
御することを特徴とする請求項１記載の冷蔵庫。4. The refrigerator according to claim 1, wherein the heater input is controlled so that the surface temperature of the glass tube of the glass tube heater for defrosting becomes lower than the refrigerant ignition temperature.
時に、ヒータ通電を停止することを特徴とする請求項１
記載の冷蔵庫。5. The heater according to claim 1, wherein when the glass tube of the glass tube heater for defrosting is broken, the heater energization is stopped.
The refrigerator as described.
圧が、基準値以上となった時に、ヒータ通電を停止する
ことを特徴とする請求項１記載の冷蔵庫。6. The refrigerator according to claim 1, wherein when the air pressure in the glass tube of the glass tube heater for defrosting becomes equal to or higher than a reference value, the heater energization is stopped.
温度が基準値以上になった時に、ヒータ通電を停止する
ことを特徴とする請求項１記載の冷蔵庫。7. The refrigerator according to claim 1, wherein when the surface temperature of the glass tube of the glass tube heater for defrosting becomes equal to or higher than a reference value, energization of the heater is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6339798A JPH11257831A (en) | 1998-03-13 | 1998-03-13 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6339798A JPH11257831A (en) | 1998-03-13 | 1998-03-13 | Refrigerator |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004381795A Division JP2005172424A (en) | 2004-12-28 | 2004-12-28 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11257831A true JPH11257831A (en) | 1999-09-24 |
Family
ID=13228143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6339798A Pending JPH11257831A (en) | 1998-03-13 | 1998-03-13 | Refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11257831A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000070281A1 (en) * | 1999-05-17 | 2000-11-23 | Matsushita Refrigeration Company | Refrigerator and defrosting heater |
| JP2001165552A (en) * | 1999-12-08 | 2001-06-22 | Mitsubishi Electric Corp | Refrigerator |
| WO2002073106A1 (en) * | 2001-03-13 | 2002-09-19 | Matsushita Refrigeration Company | Refrigerator |
| WO2003031890A1 (en) * | 2001-09-28 | 2003-04-17 | Matsushita Refrigeration Company | Defrosting heater, and refrigerator having the defrosting heater |
| WO2003044438A1 (en) * | 2001-11-19 | 2003-05-30 | Matsushita Refrigeration Company | Defrosting heater, and manufacturing method thereof |
| WO2004055457A1 (en) * | 2002-12-16 | 2004-07-01 | Matsushita Refrigeration Company | Defrosting heater, and cooling device using the heater |
| JP2008101810A (en) * | 2006-10-18 | 2008-05-01 | Matsushita Electric Ind Co Ltd | Control device for refrigerator |
| JP2011247522A (en) * | 2010-05-28 | 2011-12-08 | Mitsubishi Electric Corp | Refrigerating cycle device, refrigerator using refrigerating cycle device, low temperature device and air conditioner |
| JP2018105537A (en) * | 2016-12-26 | 2018-07-05 | アクア株式会社 | Defrosting heater and refrigerator with defrosting heater |
-
1998
- 1998-03-13 JP JP6339798A patent/JPH11257831A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000070281A1 (en) * | 1999-05-17 | 2000-11-23 | Matsushita Refrigeration Company | Refrigerator and defrosting heater |
| US6684659B1 (en) | 1999-05-17 | 2004-02-03 | Matsushita Refrigeration Company | Refrigerator and defrosting heater |
| JP2001165552A (en) * | 1999-12-08 | 2001-06-22 | Mitsubishi Electric Corp | Refrigerator |
| WO2002073106A1 (en) * | 2001-03-13 | 2002-09-19 | Matsushita Refrigeration Company | Refrigerator |
| EP1793186A3 (en) * | 2001-03-13 | 2012-06-13 | Panasonic Corporation | Refrigerator |
| US7308804B2 (en) | 2001-09-28 | 2007-12-18 | Matsushita Refrigeration Company | Defrosting heater, and refrigerator having the defrosting heater |
| WO2003031890A1 (en) * | 2001-09-28 | 2003-04-17 | Matsushita Refrigeration Company | Defrosting heater, and refrigerator having the defrosting heater |
| CN100406830C (en) * | 2001-09-28 | 2008-07-30 | 松下冷机株式会社 | Defrosting heater and refrigerator with same |
| CN100406829C (en) * | 2001-09-28 | 2008-07-30 | 松下冷机株式会社 | Defrosting heater and refrigerator with same |
| WO2003044438A1 (en) * | 2001-11-19 | 2003-05-30 | Matsushita Refrigeration Company | Defrosting heater, and manufacturing method thereof |
| CN1316218C (en) * | 2001-11-19 | 2007-05-16 | 松下冷机株式会社 | Defrosting heater, and manufacturing method thereof |
| US7215879B2 (en) | 2001-11-19 | 2007-05-08 | Matsushita Refrigeration Company | Defrosting heater with concentric glass tubes separated by end plugs |
| WO2004055457A1 (en) * | 2002-12-16 | 2004-07-01 | Matsushita Refrigeration Company | Defrosting heater, and cooling device using the heater |
| JP2008101810A (en) * | 2006-10-18 | 2008-05-01 | Matsushita Electric Ind Co Ltd | Control device for refrigerator |
| JP2011247522A (en) * | 2010-05-28 | 2011-12-08 | Mitsubishi Electric Corp | Refrigerating cycle device, refrigerator using refrigerating cycle device, low temperature device and air conditioner |
| JP2018105537A (en) * | 2016-12-26 | 2018-07-05 | アクア株式会社 | Defrosting heater and refrigerator with defrosting heater |
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