JPH0493571A - Refrigerator - Google Patents
RefrigeratorInfo
- Publication number
- JPH0493571A JPH0493571A JP21271090A JP21271090A JPH0493571A JP H0493571 A JPH0493571 A JP H0493571A JP 21271090 A JP21271090 A JP 21271090A JP 21271090 A JP21271090 A JP 21271090A JP H0493571 A JPH0493571 A JP H0493571A
- Authority
- JP
- Japan
- Prior art keywords
- water
- temperature
- ice
- temperature sensor
- water supply
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 238000000034 method Methods 0.000 abstract description 8
- 238000005070 sampling Methods 0.000 abstract 2
- 238000001514 detection method Methods 0.000 description 6
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の目的〕 産業上の利用分野 本発明は自動製氷装置を備えた冷蔵庫に関する。[Detailed description of the invention] [Purpose of the invention] Industrial applications The present invention relates to a refrigerator equipped with an automatic ice making device.
従来の技術
自動製氷機を備えた冷蔵庫として例えば特開平1−23
4772号公報がある。この公報にあっては、製氷皿に
温度センサを設け、この温度センサの検出温度が製氷完
了として設定された温度以下になったとき、製氷皿から
氷を取出し、その後、製氷皿に再給水して製氷する自動
製氷機を備えた冷蔵庫であって、前記製氷皿へ給水する
動作が実行きれた後に前記温度センサの検出温度が所定
温度以下であるとき、製氷皿内に水無しと判断する判断
手段と、この判断手段が水無しと判断したとき報知動作
する報知手段とを具備した技術が開示されている。Conventional technology As a refrigerator equipped with an automatic ice maker, for example, Japanese Patent Laid-Open No. 1-23
There is a publication No. 4772. In this publication, a temperature sensor is installed in the ice tray, and when the detected temperature of this temperature sensor becomes less than the temperature set to indicate the completion of ice making, the ice is removed from the ice tray, and then the ice tray is refilled with water. In the refrigerator, the refrigerator is equipped with an automatic ice maker that makes ice using ice, and when the temperature detected by the temperature sensor is below a predetermined temperature after the operation of supplying water to the ice tray is completed, it is determined that there is no water in the ice tray. A technique is disclosed that includes a means and a notifying means that performs a notifying operation when the determining means determines that there is no water.
発明が解決しようとする課題
自動製氷機を備えた冷蔵庫は、−船釣に冷蔵庫における
冷凍室の中に自動製氷機を備えた製氷室を配置するか、
冷凍室と製氷室とを別の部屋となし、一つの蒸発器を通
過した冷気を冷凍室と製氷室の画室に分けて流すように
することが多い、ただし前後者ともに製氷室の設定温度
は冷凍室の設定温度を適用することが多い、前述の技術
においても同様で、判断手段における水無し判断の基準
温度となる所定温度は、冷凍室即ち製氷室の設定温度(
例えば強・中・弱の設定)いかんにかかわらず常に一定
の値に決められるものである。このため、製氷室の設定
温度と所定温度との温度差は、設定状態により異なって
しまう不具合があった。また、製氷皿の給水前の温度は
、水無し判断に利用していないため、製氷室の設定温度
を知ることができず、あくまでも給水後の温度のみで水
無しを判断している。したがって設定状態にかかわらず
確実に水無しを判断できるようにするためには、判断す
るまでの時間を設定温度の最低のものに合わせた長いも
のにしなければならない制約があった。Problems to be Solved by the Invention A refrigerator equipped with an automatic ice maker is: - whether to place an ice maker equipped with an automatic ice maker in the freezer compartment of a refrigerator on a fishing boat;
In many cases, the freezing compartment and ice-making compartment are separate rooms, and the cold air that has passed through one evaporator is divided into the compartments of the freezing compartment and ice-making compartment, but the set temperature of the ice-making compartment in both The same applies to the above-mentioned technology in which the set temperature of the freezing compartment is often applied, and the predetermined temperature that becomes the reference temperature for determining that there is no water in the judgment means is the set temperature of the freezing compartment, that is, the ice making compartment (
For example, it can always be set to a constant value regardless of whether it is set to strong, medium, or weak. For this reason, there was a problem in that the temperature difference between the set temperature and the predetermined temperature of the ice making compartment varied depending on the setting state. In addition, the temperature of the ice tray before water supply is not used to determine if water is out, so the set temperature of the ice tray cannot be known, and whether water is out is determined only based on the temperature after water supply. Therefore, in order to be able to reliably determine whether there is no water regardless of the setting state, there is a constraint that the time required to make the determination must be long enough to match the lowest temperature setting.
そこで本発明は、製氷室の設定温度も加味しつつ貯水タ
ンクの水無し判断を迅速に行なえるようにした自動製氷
装置を有する冷蔵庫を提供するものである。SUMMARY OF THE INVENTION Accordingly, the present invention provides a refrigerator having an automatic ice-making device that can quickly determine whether there is water in the water storage tank while taking into account the set temperature of the ice-making compartment.
課題を解決するための手段
本発明は、製氷皿に配設きれる温度センサと、この温度
センサの検出温度が設定きれた温度以下となったとき製
氷皿から氷を取り出す脱氷装置と、脱氷後貯水タンクか
ら前記製氷皿に給水する給水装置と、給水前の前記温度
センサの検知温度と前記給水装置の給水動作が実行され
た後の前記温度センサの検知温度との偏差が予め設定さ
れた偏差値以下であるとき貯水タンク内に水無しと判断
する判断手段と、この判断手段が水無しと判断したとき
報知動作する報知手段とを備え、前記製氷皿に給水され
た水を製氷する自動製氷装置を有した冷蔵庫を提供する
ものである。Means for Solving the Problems The present invention provides a temperature sensor that can be disposed in an ice tray, an ice removal device that removes ice from the ice tray when the detected temperature of the temperature sensor becomes a preset temperature or less, and an ice removal device that A water supply device that supplies water from a rear water storage tank to the ice tray, and a deviation between the temperature detected by the temperature sensor before water supply and the temperature detected by the temperature sensor after the water supply operation of the water supply device is executed is set in advance. An automatic ice-making device for making ice from the water supplied to the ice-making tray, comprising a judgment means for judging that there is no water in the water storage tank when the deviation value is below, and a notification means for operating an alarm when the judgment means judges that there is no water. A refrigerator equipped with an ice making device is provided.
作用
判断手段が水無しを判断するために、給水後の検知温度
だけでなく給水前の温度センサの検知温度も利用するこ
とから、この給水前の検知温度が製氷皿を配設する部屋
すなわち製氷室の設定温度を確認する確認値として作用
するとともに、水無し判断を行なうたびに判断温度を決
めるための初期値として作用する。In order to determine if there is no water, the action determining means uses not only the temperature detected after water supply but also the temperature detected by the temperature sensor before water supply, so the temperature detected before water supply is the temperature in the room where the ice tray is installed, that is, the temperature detected by the temperature sensor before water supply. This serves as a confirmation value for confirming the set temperature of the room, and also serves as an initial value for determining the determination temperature each time a determination is made that there is no water.
実施例 以下本発明の実施例を図面に基づき説明する。Example Embodiments of the present invention will be described below based on the drawings.
第4図は冷蔵庫の扉を外した状態の冷蔵庫本体1が示し
てあり、この本体1には、冷凍室2.氷温室3.製氷室
4.冷蔵室5.野菜室6及びボトル収納室7が形成され
、製氷室4内には自動製氷装置10が設けられている。FIG. 4 shows the refrigerator body 1 with the refrigerator door removed, and the refrigerator body 1 includes a freezer compartment 2. Ice greenhouse 3. Ice making room4. Refrigerator room 5. A vegetable compartment 6 and a bottle storage compartment 7 are formed, and an automatic ice making device 10 is provided in the ice making compartment 4.
自動製氷装置10は、その概略を第3図に示すように、
底部に温度センサ11を取りつけ基体12に取りつけた
軸13にて回動自在に配設した製氷皿14と、温度セン
サ11の検知温度が予め設定された所定温度T。□以下
となったとき軸13を回転きせて製氷皿14を反転きせ
るとともにねじり操作して氷を取り田す脱氷装置として
のモータ15と、製氷皿14の下方に配設され上面に開
口を有する貯水容器16と、脱氷後貯水タンク17から
製氷皿14に給水動作を行なう給水装置18と、これら
の動作を制御する制御装置2oとを備えている。尚、貯
水タンク17は、製氷室4ではなく冷蔵室5に配置しで
ある。The automatic ice making device 10, as schematically shown in FIG.
An ice tray 14 has a temperature sensor 11 attached to its bottom and is rotatably arranged around a shaft 13 attached to a base 12, and a predetermined temperature T at which the temperature detected by the temperature sensor 11 is set in advance. □A motor 15 serves as a de-icing device that rotates the shaft 13 to invert the ice tray 14 and removes the ice by twisting the ice tray 14 when the ice tray 14 becomes below. a water storage container 16, a water supply device 18 that supplies water from the de-icing water storage tank 17 to the ice tray 14, and a control device 2o that controls these operations. Note that the water storage tank 17 is placed in the refrigerator compartment 5 instead of in the ice making compartment 4.
この自動製氷装置10の制御構成を第2図に示し、制御
装置20はマイクロコンピュータを主体として構成諮れ
ており、温度センサ11からの検出温度信号及び給水タ
ンク17が冷蔵室5内所定位置にセットされたときオン
動作して検出信号を出力するタンク検出スイッチ21か
らの検出信号が入力きれるようになっている。The control configuration of this automatic ice making device 10 is shown in FIG. A detection signal can be input from the tank detection switch 21, which turns on when set and outputs a detection signal.
制御装置20は、予め記憶されたプログラムに従い駆動
回路22を介して給水装置18及びモータ15を動作制
御するようになっている。The control device 20 is configured to control the operation of the water supply device 18 and the motor 15 via the drive circuit 22 according to a pre-stored program.
また、この制御装置20は、予め記憶されたプログラム
に従い、給水装置18の給水前に温度センサ11の検知
温度信号T、をサンプリングし、給水装置18の製氷皿
14への給水後において一定周期毎に温度センサ11の
検知温度信号T、をサンプリングし、両検知温度信号T
、、T、の偏差ΔT(−T、−T、)を算出し、給水終
了後ある定められた時間(例えば3分間)経過しても偏
差ΔTが予め設定された標準偏差値Ts以下にあるとき
、製氷皿14内に1水無し」と判断して報知手段として
の水無しランプ23を点灯させるものである。従って制
御装置20は、給水動作を行うにもかかわらず製氷皿1
4に給水がなされていないことを判断する判断手段とし
ての機能を兼ね備えている。In addition, this control device 20 samples the detected temperature signal T of the temperature sensor 11 before the water supply device 18 supplies water according to a pre-stored program, and at regular intervals after the water supply device 18 supplies water to the ice tray 14. The detected temperature signal T of the temperature sensor 11 is sampled, and both detected temperature signals T are sampled.
, , T, is calculated, and the deviation ΔT remains below a preset standard deviation value Ts even after a certain predetermined time (for example, 3 minutes) has elapsed after the end of water supply. When the ice tray 14 is empty, it is determined that there is no water left in the ice tray 14, and a water out lamp 23 serving as a notification means is turned on. Therefore, the control device 20 controls the ice tray 1 even though the water supply operation is performed.
It also functions as a judgment means for determining whether water is not being supplied to the water supply section 4.
尚、報知手段としての水無しランプ23は図示しない製
氷室4の扉の前面に取りつけである。Incidentally, a waterless lamp 23 as a notification means is attached to the front surface of the door of the ice making chamber 4 (not shown).
ここで制御装置20により製氷皿14内に水が溜められ
ているか否か(即ち水無しか水有りか)を判断する場合
の動作を、第1図のフローチャートを参照して説明する
。Here, the operation when the control device 20 determines whether or not water is stored in the ice tray 14 (that is, whether there is water or not) will be described with reference to the flowchart shown in FIG.
まずステップS、において、温度センサ11による給水
前の検知温度に基づく温度信号T、がサンプリングされ
る0次にステップS、にて給水装置18が起動し貯水タ
ンク17の水が製氷皿14内に供給される。ステップS
8でこの給水動作が終了したか否かが判断され、給水動
作が終了すると、ステップS4に移行しタイマーが計時
動作を開始する。ステップS、では、温度センサ11に
よる給水動作が実行された後の検知温度に基づく温度信
号T、が一定のタイミングでサンプリングされる。この
後ステップS、にて両検知温度T、。First, in step S, a temperature signal T based on the temperature detected by the temperature sensor 11 before water supply is sampled. Next, in step S, the water supply device 18 is activated and the water in the water storage tank 17 is poured into the ice tray 14. Supplied. Step S
At step S8, it is determined whether or not this water supply operation has been completed. When the water supply operation has been completed, the process moves to step S4, and the timer starts timing operation. In step S, a temperature signal T based on the temperature detected after the water supply operation by the temperature sensor 11 is performed is sampled at a constant timing. After this, in step S, both detected temperatures T, are detected.
T、から偏差(’r、−’r、)が標準偏差値Ts以下
であるか否かを判断し、T、−T、≦Tsのとき、ステ
ップS、に移行して、ある定められた時間(本例では3
分間に設定)が経過したか否かを判断する。一方、Ts
−’I’m>Tsのとき、ステップS 18へ移行して
、製氷皿14に水が溜められていると判断される。It is determined whether the deviation ('r, -'r,) from T, is less than or equal to the standard deviation value Ts, and when T, -T,≦Ts, the process moves to step S, and a certain predetermined value is determined. time (3 in this example)
(set in minutes) has elapsed. On the other hand, Ts
-'I'm>Ts, the process moves to step S18, and it is determined that water is stored in the ice tray 14.
ステップS、にて時間が経過していなければステップS
、へ復帰し、経過していればステップS。If time has not passed in step S, step S
, and if it has elapsed, go to step S.
に示すように製氷皿14に水が溜められていないと判断
され、次のステップS、で水無しランプ23が点灯され
る。このランプ23の点灯により、製氷室4の外部に貯
水タンク17に水がなくなったことを報知することがで
き、これを見て使用者がタンクへの水の補給が必要であ
ることを知り、冷蔵室5から貯水タンク17を取り出し
て給水し、再び冷蔵室5の所定位置に貯水タンク17を
セットする。この操作時にタンク検出スイッチ21が一
旦オフするため、ステップS 11にてタンク無しと判
断されてステップS 11へ移行し、ステップSllで
再度タンクの有無が判断される。この場合タンクが再び
セットされていれば、タンク検出スイッチ21が再びオ
ンするので、ステップS I!へ移行して、水無しラン
プ23を消灯させて再びステップS、に復帰する。As shown in , it is determined that no water is stored in the ice tray 14, and in the next step S, the no-water lamp 23 is turned on. By lighting this lamp 23, it is possible to inform the outside of the ice making compartment 4 that the water storage tank 17 has run out of water, and the user sees this and knows that it is necessary to replenish the tank with water. The water storage tank 17 is taken out from the refrigerator compartment 5, water is supplied, and the water storage tank 17 is set at a predetermined position in the refrigerator compartment 5 again. Since the tank detection switch 21 is once turned off during this operation, it is determined in step S11 that there is no tank, the process moves to step S11, and the presence or absence of a tank is determined again in step Sll. In this case, if the tank is set again, the tank detection switch 21 is turned on again, so step SI! Then, the waterless lamp 23 is turned off and the process returns to step S.
一方、ステップS、にてTs Tl>TSでありステ
ップS I8へ移行すると、次ステツプS 14にて給
水動作から安定時間(本例では2時間)が経過したか否
かが判断され、時間が経過していれば、ステップS1.
へ移行して温度センサ11の検知温度に基づく温度信号
T、をサンプリングし、ステップS18にてこの検知温
度T、が予め定められた所定温度T。0以下であれば、
ステップSl?へ移行し、所定温度T。2.を上回って
いればステップSl。On the other hand, if Ts Tl > TS in step S and the process moves to step S I8, it is determined in the next step S14 whether or not a stable time (2 hours in this example) has elapsed since the water supply operation, and the time is determined. If it has passed, step S1.
The temperature signal T based on the temperature detected by the temperature sensor 11 is sampled, and in step S18, the detected temperature T is set to a predetermined temperature T. If it is less than 0,
Step Sl? and the predetermined temperature T. 2. If it exceeds step Sl.
へ戻る。Return to
ステップSL?では、モータ15を一方向(例えば時計
方向)へ回転させて製氷皿14を反転させるとともにね
じり動作させて氷を取り出し、ステップS1.へ移行し
てモータ15を他方向(ここでは反時計方向)へ回転さ
せ製氷皿14を反転させて正常位置へ復帰させるととも
にステップS。Step SL? In step S1., the motor 15 is rotated in one direction (for example, clockwise) to invert the ice tray 14 and twist it to take out the ice. , the motor 15 is rotated in the other direction (in this case, counterclockwise), the ice tray 14 is reversed and returned to the normal position, and the step S is performed.
へ戻る。Return to
このように本発明によれば、給水前の温度と給水後の温
度との偏差が標準偏差値以下であるとき、判断手段が製
氷皿14及び貯水タンク17内に水無しと判断するため
、製氷室4の制御温度変更や扉開閉等何らかの原因にて
温度センサ11による給水前の検知温度が変化した場合
でも、常に給水前の検知温度T、から偏差値Tsだけ増
加したか否かで水無しの判断を行なうことができる。こ
のため、製氷室4の制御温度が変更された場合には、水
無し判断のための基準温度(従来技術でいう所定温度)
も変更するかたちとなり、常に製氷開始時点から水無し
判断までの温度差を一定に維持することができ、従来よ
りも判断性能を向上できる。しかも、水無し判断までの
時間を設定温度状態の変化に関係なく一定にすることが
できることとなり、水無し判断を設定温度に合わせ迅速
に行うことができる。As described above, according to the present invention, when the deviation between the temperature before water supply and the temperature after water supply is equal to or less than the standard deviation value, the determination means determines that there is no water in the ice tray 14 and the water storage tank 17. Even if the temperature detected before water supply by the temperature sensor 11 changes due to a change in the control temperature of the room 4 or the opening/closing of the door, the water will always run out depending on whether the temperature detected before water supply has increased by the deviation value Ts from the temperature T detected before water supply. can make judgments. Therefore, when the control temperature of the ice-making compartment 4 is changed, the reference temperature (predetermined temperature in the conventional technology) for determining that there is no water is used.
By changing the shape of the ice making system, the temperature difference can be maintained constant from the time when ice making starts until the water-free decision is made, which improves the decision-making performance compared to the conventional method. Moreover, the time required to determine that there is no water available can be made constant regardless of changes in the set temperature state, and the water-out determination can be made quickly in accordance with the set temperature.
以上詳述したように本発明によれば、判断手段が水無し
判断を行うにあたり、製氷皿の給水前の温度を検知して
いるため、この温度が製氷室の設定温度に対応するもの
となり、水無し判断に製氷室の設定温度を加味したもの
とできる。しかも、この給水前の検知温度に対して偏差
値を加えた温度を従来技術で示した所定温度とすること
ができる。さらに、水無し判断を行なう毎に給水前の温
度を検知するため、所定温度は製氷室の設定温度も加味
されたかたちで自動的に各回毎に定められ、しかも判断
までの時間を均一化することができる。As described in detail above, according to the present invention, when the determination means determines that there is no water, it detects the temperature of the ice making tray before water is supplied, so this temperature corresponds to the set temperature of the ice making compartment. This can be done by taking into consideration the set temperature of the ice maker when determining that there is no water. Moreover, the temperature obtained by adding the deviation value to the detected temperature before water supply can be set as the predetermined temperature shown in the prior art. Furthermore, since the temperature before water supply is detected each time a water-out determination is made, the predetermined temperature is automatically determined each time, taking into account the set temperature of the ice maker, and the time required to make a determination is uniform. be able to.
各図は本発明の一実施例を示し、第1図は判断手段の動
作を示すフローチャート、第2図は制御回路構成図、第
3図は製氷室の概略を示す縦断面図、第4図は扉及び引
き出しを除去した状態の冷蔵庫正面図、第5図は給水及
び製氷動作の繰返しに伴なう温度センサの検出温度変化
を示すグラフである。
1・・・冷蔵庫、 4・・・製氷室、 5・・・冷蔵
室、10・・・自動製氷装置、 11・・・温度センサ
、 14・・・製氷皿、 15・・・モータ(脱氷装
置)、 16・・・貯氷容器、 17・・・貯水タ
ンク、 18・・・給水装置、 20・・・制御装置
、 21・・・タンク検出スイッチ、 23・・・
水無しランプ。Each figure shows an embodiment of the present invention, FIG. 1 is a flowchart showing the operation of the determining means, FIG. 2 is a control circuit configuration diagram, FIG. 3 is a vertical cross-sectional view schematically showing the ice-making compartment, and FIG. 4 5 is a front view of the refrigerator with the door and drawer removed, and FIG. 5 is a graph showing changes in temperature detected by the temperature sensor as water supply and ice making operations are repeated. DESCRIPTION OF SYMBOLS 1...Refrigerator, 4...Ice making room, 5...Refrigerating room, 10...Automatic ice making device, 11...Temperature sensor, 14...Ice making tray, 15...Motor (deicing) device), 16... Ice storage container, 17... Water storage tank, 18... Water supply device, 20... Control device, 21... Tank detection switch, 23...
Waterless lamp.
Claims (1)
の検出温度が設定された温度以下となったとき製氷皿か
ら氷を取り出す脱氷装置と、脱氷後貯水タンクから前記
製氷皿に給水する給水装置と、給水前の前記温度センサ
の検知温度と前記給水装置の給水動作が実行された後の
前記温度センサの検知温度との偏差が予め設定された偏
差値以下であるとき貯水タンク内に水無しと判断する判
断手段と、この判断手段が水無しと判断したとき報知動
作する報知手段とを備え、前記製氷皿に給水された水を
製氷する自動製氷装置を有した冷蔵庫。1. A temperature sensor disposed on the ice tray, a deicing device that removes ice from the ice tray when the temperature detected by the temperature sensor is below a set temperature, and a device that removes ice from the ice tray from the water storage tank after deicing. When the deviation between the water supply device that supplies water, the temperature detected by the temperature sensor before water supply, and the temperature detected by the temperature sensor after the water supply operation of the water supply device is executed is equal to or less than a preset deviation value, the water storage tank The refrigerator has an automatic ice making device that makes ice from the water supplied to the ice tray, comprising a judgment means for judging that there is no water in the ice tray, and a notification means for notifying when the judgment means judges that there is no water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2212710A JP2552571B2 (en) | 1990-08-10 | 1990-08-10 | refrigerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2212710A JP2552571B2 (en) | 1990-08-10 | 1990-08-10 | refrigerator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0493571A true JPH0493571A (en) | 1992-03-26 |
JP2552571B2 JP2552571B2 (en) | 1996-11-13 |
Family
ID=16627151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2212710A Expired - Fee Related JP2552571B2 (en) | 1990-08-10 | 1990-08-10 | refrigerator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2552571B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009066675A1 (en) | 2007-11-20 | 2009-05-28 | Jtekt Corporation | Sealing device, rolling bearing, and rolling bearing for wheel |
CN102467140A (en) * | 2010-11-19 | 2012-05-23 | 泰州乐金电子冷机有限公司 | Ice machine and water-free detection method of water tank thereof |
US8202006B2 (en) | 2006-10-23 | 2012-06-19 | Koyo Sealing Techno Co., Ltd | Sealing device, rolling bearing, and rolling bearing for wheel |
US8356942B2 (en) | 2007-11-09 | 2013-01-22 | Ntn Corporation | Sealing device for bearing assembly and wheel support bearing assembly therewith |
JP2013137117A (en) * | 2011-12-28 | 2013-07-11 | Mitsubishi Electric Corp | Refrigerator |
US8678660B2 (en) | 2007-11-20 | 2014-03-25 | Jtekt Corporation | Sealing device, rolling bearing and rolling bearing for wheel |
-
1990
- 1990-08-10 JP JP2212710A patent/JP2552571B2/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8202006B2 (en) | 2006-10-23 | 2012-06-19 | Koyo Sealing Techno Co., Ltd | Sealing device, rolling bearing, and rolling bearing for wheel |
US8356942B2 (en) | 2007-11-09 | 2013-01-22 | Ntn Corporation | Sealing device for bearing assembly and wheel support bearing assembly therewith |
WO2009066675A1 (en) | 2007-11-20 | 2009-05-28 | Jtekt Corporation | Sealing device, rolling bearing, and rolling bearing for wheel |
US8678660B2 (en) | 2007-11-20 | 2014-03-25 | Jtekt Corporation | Sealing device, rolling bearing and rolling bearing for wheel |
CN102467140A (en) * | 2010-11-19 | 2012-05-23 | 泰州乐金电子冷机有限公司 | Ice machine and water-free detection method of water tank thereof |
JP2013137117A (en) * | 2011-12-28 | 2013-07-11 | Mitsubishi Electric Corp | Refrigerator |
Also Published As
Publication number | Publication date |
---|---|
JP2552571B2 (en) | 1996-11-13 |
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