JPH06117743A - Refrigerator - Google Patents
RefrigeratorInfo
- Publication number
- JPH06117743A JPH06117743A JP4261500A JP26150092A JPH06117743A JP H06117743 A JPH06117743 A JP H06117743A JP 4261500 A JP4261500 A JP 4261500A JP 26150092 A JP26150092 A JP 26150092A JP H06117743 A JPH06117743 A JP H06117743A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerator
- blade
- fans
- evaporator
- compressor
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0682—Two or more fans
Landscapes
- Control Of Multiple Motors (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷凍冷蔵庫に関するも
のであり、特に、複数の庫内冷却用の多翼ファンを備え
た冷凍冷蔵庫に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator / freezer, and more particularly to a refrigerator / freezer having a plurality of multi-blade fans for cooling the inside of the refrigerator.
【０００２】[0002]
【従来の技術】図１１は従来の冷凍冷蔵庫を示す側断面
図であり、図１２は図１１の冷凍冷蔵庫の正面上部を示
す断面図である。図において、１は冷凍冷蔵庫の外郭を
なす断熱箱体、２は冷凍冷蔵庫の下部に位置する機械
室、３は冷媒を圧縮する圧縮機、４は機械室冷却用ファ
ン、５は冷媒を蒸発させ熱交換器として機能する蒸発
器、６は蒸発器５との熱交換によって冷却された空気を
循環させて庫内を冷却する庫内冷却用の多翼ファン、７
の矢印は庫内を流れる空気流を示す。11 is a side sectional view showing a conventional refrigerator-freezer, and FIG. 12 is a sectional view showing a front upper portion of the refrigerator-freezer shown in FIG. In the figure, 1 is a heat-insulating box forming the outline of a refrigerator-freezer, 2 is a machine room located at the bottom of the refrigerator-freezer, 3 is a compressor for compressing a refrigerant, 4 is a fan for cooling the machine room, 5 is a refrigerant for evaporating the refrigerant. An evaporator functioning as a heat exchanger, 6 is a multi-blade fan for cooling the inside of the compartment, which circulates air cooled by heat exchange with the evaporator 5 to cool the inside of the compartment, 7
The arrow indicates the airflow flowing in the refrigerator.
【０００３】次に、この構成の冷凍冷蔵庫の動作につい
て説明する。この冷凍冷蔵庫においては、断熱箱体１内
部（即ち、庫内）に設けられた庫内冷却用の多翼ファン
６によって強制的に流動する空気流７が、蒸発器５を通
過する際に、蒸発器５との熱交換によって冷却され、こ
れが庫内を循環することで庫内の温度を低下させてい
る。また、機械室２では、圧縮機３運転時の圧縮機３の
温度上昇を抑えるために機械室冷却用ファン４を運転
し、強制的に対流させ、圧縮機３の放熱を促進してい
る。そして、圧縮機３、機械室冷却用ファン４、庫内冷
却用の多翼ファン６の３つの電動機の起動タイミングを
ずらして、冷凍冷蔵庫としての運転起動音の低減を図っ
ている。Next, the operation of the refrigerator-freezer thus constructed will be described. In this refrigerator-freezer, when the airflow 7 forcibly flowing by the multi-blade fan 6 for cooling the inside of the heat insulating box 1 (that is, the inside of the inside) passes through the evaporator 5, It is cooled by heat exchange with the evaporator 5, and this circulates in the refrigerator, thereby lowering the temperature in the refrigerator. Further, in the machine room 2, the machine room cooling fan 4 is operated to suppress the temperature rise of the compressor 3 during the operation of the compressor 3 and forcedly convection to promote heat dissipation of the compressor 3. Then, the start timings of the three electric motors of the compressor 3, the machine room cooling fan 4, and the multi-blade fan 6 for cooling the inside of the refrigerator are deviated to reduce the operation start noise of the refrigerator-freezer.
【０００４】図１３は従来の冷凍冷蔵庫の各電動機の運
転状態を示すタイムチャートであり、各電動機の起動及
び停止のタイミングを示す。図１３のように、圧縮機
３、機械室冷却用ファン４、庫内冷却用の多翼ファン６
の各電動機を順次起動し、順次停止することで、停止時
と運転時との間の音の大きさの変化が段階的に変化し、
起動、或いは停止時の体感音レベルを低減している。FIG. 13 is a time chart showing the operating state of each electric motor of a conventional refrigerator-freezer, and shows the timing of starting and stopping each electric motor. As shown in FIG. 13, the compressor 3, the machine room cooling fan 4, and the multi-blade fan 6 for cooling the interior
By sequentially starting and stopping each electric motor of, the change in the loudness between the time of stop and the time of operation changes in stages,
The sensation level when starting or stopping is reduced.
【０００５】なお、従来のこの種の冷凍冷蔵庫に関連す
るものとして、特開昭５９−１６００９５号、特開平１
−１４２３４８号、特開平２−２５４９９８号公報に掲
載の技術を挙げることができる。特開昭５９−１６００
９５号公報には、複数個のファンを順次タイミングをず
らして起動させる技術が開示されており、特開平１−１
４２３４８号公報には、複数の多翼ファンの羽根枚数を
互いに共通公約数の無い関係にして、唸り音を防止する
技術が開示されている。そして、特開平２−２５４９９
８号公報には、ファンの回転数を切換える時に複数のフ
ァンを時間差をつけて切換える技術が開示されている。As related to this type of conventional freezer / refrigerator, Japanese Patent Laid-Open No. 59-160095 and Japanese Patent Laid-Open No. 1-9595 have been proposed.
The techniques described in JP-A-142348 and JP-A-2-254998 can be mentioned. JP-A-59-1600
Japanese Patent Laid-Open No. 95-95 discloses a technique for starting a plurality of fans by sequentially shifting the timing.
Japanese Patent No. 42348 discloses a technique for preventing roaring noise by making the number of blades of a plurality of multi-blade fans mutually unrelated to each other. And, JP-A-2-25499
Japanese Unexamined Patent Publication No. 8 discloses a technique of switching a plurality of fans with a time difference when switching the rotation speed of the fans.
【０００６】[0006]
【発明が解決しようとする課題】上記のような従来の冷
凍冷蔵庫では、冷凍冷蔵庫の大型化、形態の多様化によ
って、より大きな冷却能力が要求されるようになってき
た。このための対策として、庫内循環空気量を増加させ
る方法があり、庫内冷却用の多翼ファン６を複数並列に
設けることで、循環空気量の増大を図っていた。In the conventional refrigerator / freezer as described above, a larger cooling capacity has been required due to the increase in size and diversification of the refrigerator / freezer. As a countermeasure for this, there is a method of increasing the amount of circulating air in the refrigerator, and a plurality of multi-blade fans 6 for cooling the refrigerator are provided in parallel to increase the amount of circulating air.
【０００７】しかし、このとき、複数の多翼ファン６を
運転すると唸り音が発生していた。また、起動音、停止
音が１つの多翼ファン６の場合に比べて大きくなるとい
う弊害があった。However, at this time, when a plurality of multi-blade fans 6 are operated, a growl noise is generated. In addition, there is an adverse effect that the start-up sound and the stop sound become louder than in the case of one multi-blade fan 6.
【０００８】そこで、本発明は、庫内循環空気量を増加
させるために複数の庫内冷却用の多翼ファン６を使用し
ても、唸り音等の騒音を低減できる冷凍冷蔵庫の提供を
課題とするものである。Therefore, it is an object of the present invention to provide a refrigerating refrigerator capable of reducing noise such as groaning noise even if a plurality of multi-blade fans 6 for cooling the inside of the refrigerator are used to increase the amount of circulating air inside the refrigerator. It is what
【０００９】[0009]
【課題を解決するための手段】請求項１の発明にかかる
冷凍冷蔵庫は、圧縮機、凝縮器、減圧器、及び蒸発器を
有する冷媒循環用の冷凍サイクルと、前記蒸発器との熱
交換によって冷却された空気を循環させ、断熱箱体から
なる庫内を冷却する複数並列に配設された多翼ファン
と、前記複数の多翼ファンの回転数を各々変えて運転す
る回転数制御手段とを具備するものである。According to a first aspect of the present invention, there is provided a refrigerating refrigerator having a compressor, a condenser, a decompressor, and a refrigerant circulation refrigeration cycle for heat exchange with the evaporator. A plurality of multi-blade fans arranged in parallel to circulate the cooled air to cool the inside of the heat insulating box, and a rotation speed control means for operating by changing the rotation speed of each of the plurality of multi-blade fans. It is equipped with.
【００１０】請求項２の発明にかかる冷凍冷蔵庫は、上
記請求項１と同様の冷凍サイクル、多翼ファン、回転数
制御手段に加えて、前記複数の多翼ファンの電動機、圧
縮機の電動機、機械室冷却用ファンの電動機の起動及び
停止のタイミングを各々変えて運転する起動停止制御手
段を具備するものである。According to a second aspect of the present invention, in addition to the same refrigerating cycle, the multi-blade fan, and the rotation speed control means as in the above-mentioned first aspect, the plurality of multi-blade fan electric motors, compressor electric motors, It is provided with a start / stop control means for operating by changing the timing of starting and stopping the electric motor of the machine room cooling fan.
【００１１】請求項３の発明にかかる冷凍冷蔵庫は、上
記請求項１と同様の冷凍サイクル、多翼ファン、回転数
制御手段、及び請求項２と同様の起動停止制御手段に加
えて、前記複数の多翼ファンの起動順序及び停止順序を
圧縮機の起動毎に各々変えて運転する起動停止順序制御
手段を具備するものである。According to a third aspect of the present invention, in addition to the refrigerating cycle similar to the first aspect, the multi-blade fan, the rotation speed control means, and the start / stop control means similar to the second aspect, the plurality of the refrigerators and refrigerators are provided. The multi-blade fan is provided with a start-stop sequence control means for operating by changing the start sequence and the stop sequence of the multi-blade fan each time the compressor is activated.
【００１２】[0012]
【作用】請求項１の発明の冷凍冷蔵庫においては、冷媒
循環用の冷凍サイクル内の蒸発器との熱交換によって冷
却された空気を循環させ、断熱箱体からなる庫内を冷却
する複数並列に配設された多翼ファンの回転数を各々変
えて運転するものであるから、庫内冷却用の複数の多翼
ファン運転時の干渉により生じる唸り音を低減できる。In the refrigerating refrigerator according to the first aspect of the present invention, the air cooled by heat exchange with the evaporator in the refrigerating cycle for circulating the refrigerant is circulated to cool the inside of the heat insulating box in parallel. Since the operation is performed by changing the rotation speed of each of the multi-blade fans provided, it is possible to reduce the howling noise caused by the interference during the operation of the multi-blade fans for cooling the inside of the refrigerator.
【００１３】請求項２の発明の冷凍冷蔵庫においては、
冷媒循環用の冷凍サイクル内の蒸発器との熱交換によっ
て冷却された空気を循環させ、断熱箱体からなる庫内を
冷却する複数並列に配設された多翼ファンの回転数を各
々変えて運転するとともに、複数の多翼ファンの電動
機、圧縮機の電動機、機械室冷却用ファンの電動機の起
動及び停止のタイミングを各々変えて運転するものであ
るから、庫内冷却用の複数の多翼ファン運転時の干渉に
より生じる唸り音を低減できるだけでなく、起動時及び
停止時の音の急激な変化を防止できる。In the refrigerator according to the invention of claim 2,
The air cooled by heat exchange with the evaporator in the refrigeration cycle for circulating the refrigerant is circulated to cool the inside of the heat insulating box by changing the rotation speeds of the multi-blade fans arranged in parallel. Since the operation is performed while changing the start and stop timings of the electric motors of the multi-blade fans, the electric motors of the compressors, and the electric motors of the machine room cooling fans, the plural multi-blade for cooling the inside of the refrigerator Not only can the growl noise caused by interference during fan operation be reduced, but also abrupt changes in the sound during startup and shutdown can be prevented.
【００１４】請求項３の発明の冷凍冷蔵庫においては、
冷媒循環用の冷凍サイクル内の蒸発器との熱交換によっ
て冷却された空気を循環させ、断熱箱体からなる庫内を
冷却する複数並列に配設された多翼ファンの回転数を各
々変えて運転するとともに、複数の多翼ファンの電動
機、圧縮機の電動機、機械室冷却用ファンの電動機の起
動及び停止のタイミングを各々変えて運転し、更に複数
の多翼ファンの起動順序及び停止順序を圧縮機の起動毎
に各々変えて運転するものであるから、庫内冷却用の複
数の多翼ファン運転時の干渉により生じる唸り音を低減
できるだけでなく、起動時及び停止時の音の急激な変化
を防止でき、しかも、複数の多翼ファンの運転時間を平
均化でき、起動直後に蒸発器を通過する空気流の方向が
起動毎に変化する。In the refrigerator according to the third aspect of the present invention,
The air cooled by heat exchange with the evaporator in the refrigeration cycle for circulating the refrigerant is circulated to cool the inside of the heat insulating box by changing the rotation speeds of the multi-blade fans arranged in parallel. In addition to the operation, the start and stop timings of the multi-blade fan electric motor, the compressor electric motor, and the machine room cooling fan electric motor are changed, respectively. Since the compressor is operated differently each time the compressor is started, it is possible to reduce the humming noise caused by the interference during the operation of multiple multi-blade fans for cooling the inside of the refrigerator, as well as to reduce the sudden noise at the time of starting and stopping. The change can be prevented, and the operation times of the plurality of multi-blade fans can be averaged, and the direction of the air flow passing through the evaporator changes immediately after the start-up.
【００１５】[0015]
【実施例】以下、本発明の各実施例について説明をす
る。 〈第一実施例〉図１は本発明の第一実施例である冷凍冷
蔵庫を示す側断面図であり、図２は図１の冷凍冷蔵庫の
正面上部を示す断面図である。図中、上記従来例と同一
符号及び記号は上記従来例の構成部分と同一または相当
する構成部分を示す。図において、６ａは庫内冷却用の
多翼ファン、６ｂも同じく庫内冷却用の多翼ファンであ
り、２つの多翼ファン６ａ，６ｂは近接して横方向に並
列状態で配設されている。Embodiments of the present invention will be described below. <First Embodiment> FIG. 1 is a side sectional view showing a refrigerator-freezer according to a first embodiment of the present invention, and FIG. 2 is a sectional view showing a front upper portion of the refrigerator-freezer of FIG. In the figure, the same reference numerals and symbols as those of the above-mentioned conventional example indicate the same or corresponding components as those of the above-mentioned conventional example. In the figure, 6a is a multi-blade fan for cooling the interior, 6b is also a multi-blade fan for cooling the interior, and the two multi-blade fans 6a and 6b are arranged close to each other in a laterally parallel manner. There is.
【００１６】次に、この構成の冷凍冷蔵庫の動作につい
て説明する。本実施例の冷凍冷蔵庫においては、断熱箱
体１内部（即ち、庫内）に設けられた２個の庫内冷却用
の多翼ファン６ａ，６ｂによって強制的に流動する空気
流７が、蒸発器５を通過する際に、蒸発器５との熱交換
によって冷却され、これが庫内を循環することで庫内の
温度を低下させている。また、機械室２では、圧縮機３
運転時の圧縮機３の温度上昇を抑えるために機械室冷却
用ファン４を運転し、強制的に対流させ、圧縮機３の放
熱を促進している。Next, the operation of the refrigerator-freezer thus constructed will be described. In the freezer-refrigerator of this embodiment, the airflow 7 forcibly flowing by the two multi-blade fans 6a, 6b for cooling the inside of the heat-insulating box 1 (that is, inside the refrigerator) evaporates. When passing through the vessel 5, it is cooled by heat exchange with the evaporator 5, and this circulates in the vessel, thereby lowering the temperature inside the vessel. In the machine room 2, the compressor 3
In order to suppress the temperature rise of the compressor 3 during operation, the machine room cooling fan 4 is operated and forcedly convected to promote heat dissipation of the compressor 3.
【００１７】本実施例では、図２における庫内冷却用の
２個の多翼ファン６ａ，６ｂの運転回転数は各々相違し
ている。したがって、２個の多翼ファン６ａ，６ｂの干
渉による唸り音が発生しない。実際に、唸り音が生じる
のは、２個の多翼ファン６ａ，６ｂの回転成分の音の周
波数が２〜３Ｈｚのときであり、唸り音を無くすには、
回転成分の音の周波数に５Ｈｚ以上の差を持たせればよ
い。In this embodiment, the operating speeds of the two multi-blade fans 6a and 6b for cooling the inside of the refrigerator in FIG. 2 are different from each other. Therefore, no roaring noise is generated due to the interference of the two multi-blade fans 6a and 6b. Actually, the growl noise is generated when the frequency of the sound of the rotation components of the two multi-blade fans 6a and 6b is 2 to 3 Hz. To eliminate the growl sound,
The frequency of the sound of the rotation component may be different by 5 Hz or more.
【００１８】例えば、図２のように３枚羽根の多翼ファ
ン６ａ，６ｂの場合について述べる。庫内冷却用の多翼
ファン６ａを６０Ｈｚの周波数で駆動すると、その回転
成分の音の周波数は、 ６０Ｈｚ×０．５（すべり）×３（枚）＝９０Ｈｚ となる。このとき、唸り音を防止するには、多翼ファン
６ａの音の周波数を９０Ｈｚから５Ｈｚ離しておけばよ
い。これを逆算すると、 ８５Ｈｚ／｛０．５（すべり）×３（枚）｝＝５６．７
Ｈｚ となる。したがって、駆動の周波数で５Ｈｚずらして５
５Ｈｚとしておけば、充分に唸り音を防止できる。For example, a case of multi-blade fans 6a and 6b having three blades as shown in FIG. 2 will be described. When the multi-blade fan 6a for cooling the interior is driven at a frequency of 60 Hz, the frequency of the sound of the rotation component is 60 Hz × 0.5 (slip) × 3 (sheets) = 90 Hz. At this time, in order to prevent the howling sound, the frequency of the sound of the multi-blade fan 6a may be separated from 90 Hz to 5 Hz. When this is calculated backward, 85 Hz / {0.5 (slip) × 3 (sheets)} = 56.7
It becomes Hz. Therefore, the driving frequency is shifted by 5 Hz to 5
If it is set to 5 Hz, howling noise can be sufficiently prevented.
【００１９】このように、本実施例の冷凍冷蔵庫は、圧
縮機３、凝縮器、減圧器、及び蒸発器５を有する冷媒循
環用の既に周知の冷凍サイクルと、前記蒸発器５との熱
交換によって冷却された空気を循環させ、断熱箱体１か
らなる庫内を冷却する２個（複数）並列に配設された多
翼ファン６ａ，６ｂと、前記２個（複数）の多翼ファン
６ａ，６ｂの回転数を各々変えて運転する回転数制御手
段とを備えている。As described above, in the refrigerator-freezer of the present embodiment, the already known refrigeration cycle for circulating the refrigerant having the compressor 3, the condenser, the decompressor and the evaporator 5 and the heat exchange with the evaporator 5 are carried out. Two (plural) multi-blade fans 6a, 6b arranged in parallel to circulate the air cooled by the above and cool the inside of the heat insulating box 1, and the two (plural) multi-blade fans 6a , 6b, respectively, and rotation speed control means for operating by changing the rotation speed.
【００２０】即ち、本実施例の冷凍冷蔵庫は、冷媒循環
用の冷凍サイクル内の蒸発器５との熱交換によって冷却
された空気を循環させ、断熱箱体１からなる庫内を冷却
する２個（複数）並列に配設された多翼ファン６ａ，６
ｂの回転数を各々変えて運転するものである。したがっ
て、庫内冷却用の２個（複数）の多翼ファン６ａ，６ｂ
運転時の干渉により生じる唸り音を低減できるので、全
体の騒音を抑制でき、結果的に静かな冷凍冷蔵庫とな
る。That is, the refrigerating refrigerator of this embodiment circulates the air cooled by heat exchange with the evaporator 5 in the refrigerating cycle for circulating the refrigerant, and cools the inside of the heat insulating box 1 by two (Multiple) multi-blade fans 6a, 6 arranged in parallel
The operation is performed by changing the rotation speed of b. Therefore, two (plural) multi-blade fans 6a, 6b for cooling the inside of the refrigerator
The roaring noise caused by interference during operation can be reduced, and the overall noise can be suppressed, resulting in a quiet refrigerator / freezer.
【００２１】〈第二実施例〉図３は本発明の第二実施例
である冷凍冷蔵庫の各電動機の運転状態を示すタイムチ
ャートであり、各電動機の起動及び停止のタイミングを
示す。図のように、まず、庫内冷却用の多翼ファン６ａ
を起動し、次に、庫内冷却用の多翼ファン６ｂ、機械室
冷却用ファン４、そして圧縮機３の順に各電動機を順次
起動させていく。これにより、起動音レベルがなだらか
に上昇し、体感音レベルを低下させることができる。し
たがって、使用者に与える騒音による不快感を低減でき
る。また、停止時には、起動時の場合と逆の順序で各電
動機を停止させ、同様に音レベルの変化をなだらかに下
降し、体感音レベルを低下させることができる。こうし
て、圧縮機３、機械室冷却用ファン４、多翼ファン６
ａ，６ｂの各電動機の起動及び停止のタイミングをずら
して、冷凍冷蔵庫の起動時及び停止時の音レベルの急激
な変化を無くしている。この他の構成は上記第一実施例
と同一である。<Second Embodiment> FIG. 3 is a time chart showing the operating states of the electric motors of the refrigerator / freezer according to the second embodiment of the present invention, showing the start and stop timings of the electric motors. As shown in the figure, first, the multi-blade fan 6a for cooling the interior
Then, the electric motors are sequentially activated in the order of the multi-blade fan 6b for cooling the inside of the refrigerator, the fan 4 for cooling the machine room, and the compressor 3. As a result, the activation sound level can be gently increased and the sensible sound level can be reduced. Therefore, it is possible to reduce the discomfort caused by the noise given to the user. Further, at the time of stop, each electric motor can be stopped in the reverse order to that at the time of start-up, and similarly, the change of the sound level can be gently lowered to lower the sensation level. Thus, the compressor 3, the machine room cooling fan 4, the multi-blade fan 6
The start and stop timings of the electric motors a and 6b are staggered to eliminate a sudden change in the sound level when starting and stopping the refrigerator. The other structure is the same as that of the first embodiment.
【００２２】このように、本実施例の冷凍冷蔵庫は、上
記第一実施例と同様の冷凍サイクル、多翼ファン６ａ，
６ｂ、回転数制御手段に加えて、２個（複数）の多翼フ
ァン６ａ，６ｂの電動機、圧縮機３の電動機、機械室冷
却用ファン４の電動機の起動及び停止のタイミングを各
々変えて運転する起動停止制御手段を備えている。即
ち、本実施例の冷凍冷蔵庫は、冷媒循環用の冷凍サイク
ル内の蒸発器５との熱交換によって冷却された空気を循
環させ、断熱箱体１からなる庫内を冷却する２個（複
数）並列に配設された多翼ファン６ａ，６ｂの回転数を
各々変えて運転するとともに、２個（複数）の多翼ファ
ン６ａ，６ｂの電動機、圧縮機３の電動機、機械室冷却
用ファン４の電動機の起動及び停止のタイミングを各々
変えて運転するものである。In this way, the refrigerator-freezer of this embodiment has the same refrigeration cycle, multi-blade fan 6a,
6b, in addition to the rotational speed control means, the start and stop timings of the electric motors of the two (plural) multi-blade fans 6a and 6b, the electric motor of the compressor 3 and the electric motor of the machine room cooling fan 4 are changed respectively. It is provided with a start / stop control means for controlling. That is, the refrigerator-freezer of the present embodiment circulates the air cooled by the heat exchange with the evaporator 5 in the refrigeration cycle for circulating the refrigerant, and cools the inside of the heat insulating box 1 (two or more). The multi-blade fans 6a and 6b arranged in parallel are operated by changing the respective rotation speeds, and the electric motors of the two (plural) multi-blade fans 6a and 6b, the electric motor of the compressor 3, and the machine room cooling fan 4 The electric motor is operated by changing the start and stop timings of the electric motor.
【００２３】したがって、上記第一実施例と同様に、庫
内冷却用の２個（複数）の多翼ファン６ａ，６ｂ運転時
の干渉により生じる唸り音を低減できるので、上記第一
実施例と同様の効果を奏し、しかも、起動時及び停止時
の音の急激な変化を防止できるので、体感音レベルを低
下でき、使用者に不快感を与えることがない。Therefore, similarly to the first embodiment, the roaring noise caused by the interference during the operation of the two (plural) multi-blade fans 6a and 6b for cooling the inside of the refrigerator can be reduced, and therefore the first embodiment can be reduced. The same effect can be achieved, and moreover, abrupt changes in sound at the time of starting and stopping can be prevented, so that the bodily sensation level can be lowered and the user is not made uncomfortable.
【００２４】〈第三実施例〉図４は本発明の第三実施例
である冷凍冷蔵庫の各電動機の運転状態を示すタイムチ
ャートであり、各電動機の起動及び停止のタイミングを
示す。図４のように、圧縮機３の起動毎に２個の多翼フ
ァン６ａ，６ｂの起動順序を入替え、同様に停止順序も
入替える。即ち、１回目の運転時には、多翼ファン６
ａ、多翼ファン６ｂ、機械室冷却用ファン４、そして圧
縮機３の順に起動し、この逆の順序で停止する。そし
て、２回目の運転時には、多翼ファン６ｂ、多翼ファン
６ａ、機械室冷却用ファン４、圧縮機３の順に起動し、
この逆の順序で停止する。これにより、２つの多翼ファ
ン６ａ，６ｂの電動機の運転時間の平均化を図ることが
できる。<Third Embodiment> FIG. 4 is a time chart showing the operating states of the electric motors of the refrigerator / freezer according to the third embodiment of the present invention, showing the start and stop timings of the electric motors. As shown in FIG. 4, the start order of the two multi-blade fans 6a and 6b is changed every time the compressor 3 is started, and the stop order is also changed. That is, during the first operation, the multi-blade fan 6
a, the multi-blade fan 6b, the machine room cooling fan 4, and the compressor 3 are started in this order and stopped in the reverse order. Then, during the second operation, the multi-blade fan 6b, the multi-blade fan 6a, the machine room cooling fan 4, and the compressor 3 are started in this order,
Stop in the reverse order. This makes it possible to average the operating time of the electric motors of the two multi-blade fans 6a and 6b.
【００２５】また、このとき、空気流７の流れも変化す
る。これを、図５及び図６によって説明する。図５は本
発明の第三実施例である冷凍冷蔵庫の正面上部を示す断
面図であり、図６は同じく本発明の第三実施例である冷
凍冷蔵庫の正面上部を示す断面図である。つまり、１回
目の運転時には、運転初期（多翼ファン６ａのみが運
転）の蒸発器５内を流れる空気流７は図５のように流
れ、２回目の運転時には、運転初期（多翼ファン６ｂの
みが運転）の蒸発器５内を流れる空気流７は図６のよう
に流れる。これにより、運転初期の蒸発器５上の着霜が
遍在するのを防止できる。At this time, the flow of the air flow 7 also changes. This will be described with reference to FIGS. 5 is a sectional view showing a front upper part of a refrigerator-freezer according to a third embodiment of the present invention, and FIG. 6 is a sectional view showing a front upper part of a refrigerator-freezer according to a third embodiment of the present invention. That is, during the first operation, the airflow 7 flowing through the evaporator 5 in the initial operation (only the multi-blade fan 6a operates) flows as shown in FIG. 5, and during the second operation, the initial operation (the multi-blade fan 6b) is performed. The air flow 7 flowing in the evaporator 5 (only operated) flows as shown in FIG. As a result, it is possible to prevent the frost formation on the evaporator 5 at the initial stage of operation from being ubiquitous.
【００２６】このように、本実施例の冷凍冷蔵庫は、上
記第一実施例及び第二実施例と同様の冷凍サイクル、多
翼ファン６ａ，６ｂ、回転数制御手段、第二実施例と同
様の起動停止制御手段に加えて、２個（複数）の多翼フ
ァン６の起動順序及び停止順序を圧縮機３の起動毎に各
々変えて運転する起動停止順序制御手段を備えている。As described above, the refrigerator / freezer of this embodiment has the same refrigeration cycle, multi-blade fans 6a and 6b, rotation speed control means, and second embodiment as those of the first and second embodiments. In addition to the start-stop control means, a start-stop order control means is provided that operates by changing the start order and stop order of the two (plural) multiblade fans 6 each time the compressor 3 is started.
【００２７】即ち、本実施例の冷凍冷蔵庫は、冷媒循環
用の冷凍サイクル内の蒸発器５との熱交換によって冷却
された空気を循環させ、断熱箱体１からなる庫内を冷却
する２個（複数）並列に配設された多翼ファン６ａ，６
ｂの回転数を、各々変えて運転するとともに、２個（複
数）の多翼ファン６ａ，６ｂの電動機、圧縮機３の電動
機、機械室冷却用ファン４の電動機の起動及び停止のタ
イミングを各々変えて運転し、更に２個（複数）の多翼
ファン６ａ，６ｂの起動順序及び停止順序を圧縮機３の
起動毎に各々変えて運転するものである。That is, the refrigerating refrigerator of this embodiment circulates the air cooled by heat exchange with the evaporator 5 in the refrigerating cycle for circulating the refrigerant, and cools the inside of the heat insulating box 1 by two (Multiple) multi-blade fans 6a, 6 arranged in parallel
The rotation speed of b is changed, and the start and stop timings of the electric motors of the two (plural) multi-blade fans 6a and 6b, the electric motor of the compressor 3, and the electric motor of the machine room cooling fan 4 are respectively changed. The operation is changed, and the start order and stop order of the two (plural) multi-blade fans 6a and 6b are changed each time the compressor 3 is started.
【００２８】したがって、上記第一実施例及び第二実施
例と同様に、庫内冷却用の２個（複数）の多翼ファン６
ａ，６ｂ運転時の干渉により生じる唸り音を低減できる
だけでなく、起動時及び停止時の音の急激な変化を防止
できるので、上記第一実施例及び第二実施例と同様の効
果を奏する。しかも、２個（複数）の多翼ファン６ａ，
６ｂの運転時間を平均化できるので、各多翼ファン６
ａ，６ｂの電動機の寿命の平均化を図れる。さらに、起
動直後に蒸発器５を通過する空気流７の方向が起動毎に
変化するので、蒸発器５上の着霜状態の極端な偏りを防
止でき、比較的均一な着霜状態が得られ、蒸発器５の着
霜による能力低下に対する耐性（即ち、蒸発器５の着霜
耐性）の改善を図れる。Therefore, like the first and second embodiments, two (plural) multi-blade fans 6 for cooling the inside of the refrigerator are installed.
Not only can the barking noise caused by the interference during the operation of a and 6b be reduced, but also the abrupt change of the sound at the time of starting and stopping can be prevented, so that the same effect as the first and second embodiments can be obtained. Moreover, two (plural) multi-blade fans 6a,
Since the operation time of 6b can be averaged, each multi-blade fan 6
The life of the motors a and 6b can be averaged. Furthermore, since the direction of the air flow 7 passing through the evaporator 5 changes immediately after startup, it is possible to prevent an extreme deviation of the frosted state on the evaporator 5 and obtain a relatively uniform frosted state. Therefore, it is possible to improve the resistance to the deterioration of the capacity of the evaporator 5 due to frost formation (that is, the frost resistance of the evaporator 5).
【００２９】〈第四実施例〉ところで、上記の第一乃至
第三実施例においては、２個の庫内冷却用の多翼ファン
６ａ，６ｂを近接して横方向に配した冷凍冷蔵庫につい
て説明したが、３個、若くは３個以上の多翼ファン６を
横方向に配設し、並列に用いても同様の効果を得ること
ができる。<Fourth Embodiment> In the first to third embodiments described above, a refrigerator-freezer in which two multi-blade fans 6a and 6b for cooling the inside of the refrigerator are closely arranged laterally will be described. However, the same effect can be obtained by arranging three, or three or more, multi-blade fans 6 laterally and using them in parallel.
【００３０】図７は本発明の第四実施例である冷凍冷蔵
庫の正面上部を示す断面図、図８は同じく本発明の第四
実施例である他の冷凍冷蔵庫の正面上部を示す断面図で
あり、共に庫内冷却用の多翼ファン６の配置と蒸発器５
を通過する空気流７を示している。図中、上記各実施例
と同一符号及び記号は上記各実施例の構成部分と同一ま
たは相当する構成部分を示す。FIG. 7 is a sectional view showing a front upper part of a refrigerator-freezer according to a fourth embodiment of the present invention, and FIG. 8 is a sectional view showing a front upper part of another refrigerator-freezer according to a fourth embodiment of the present invention. Yes, both are equipped with a multi-blade fan 6 for cooling the interior and the evaporator 5
Shows an air flow 7 passing through. In the figure, the same reference numerals and symbols as those of the above-mentioned respective embodiments indicate the same or corresponding constituent parts as those of the above-mentioned respective embodiments.
【００３１】図のように、庫内冷却用の多翼ファン６の
個数が増すと、多翼ファン６は蒸発器５の上面に広く分
布して配設できるので、空気流７は蒸発器５の上側にお
いても、１つのファン吸込方向に集中することなく均一
で平行な流れとなる。このため、蒸発器５全体を空気流
７が通過し、熱交換が行なわれるので、蒸発器５の熱交
換の効率が向上する。As shown in the figure, when the number of the multi-blade fans 6 for cooling the inside of the refrigerator increases, the multi-blade fans 6 can be widely distributed and arranged on the upper surface of the evaporator 5, so that the air flow 7 becomes the evaporator 5. Even on the upper side of, the flow is uniform and parallel without being concentrated in one fan suction direction. Therefore, the airflow 7 passes through the entire evaporator 5 to perform heat exchange, so that the efficiency of heat exchange of the evaporator 5 is improved.
【００３２】〈第五実施例〉また、上記の第一乃至第四
実施例においては、２個若くは複数の庫内冷却用の多翼
ファン６，６ａ，６ｂを同一方向に向けて配設した冷凍
冷蔵庫について説明したが、これらの多翼ファン６の軸
方向を適宜変えて配設してもよい。図９は本発明の第五
実施例である冷凍冷蔵庫の正面上部を示す断面図であ
り、図１０は図９の冷凍冷蔵庫を示す平断面図である。
図中、上記各実施例と同一符号及び記号は上記各実施例
の構成部分と同一または相当する構成部分を示す。<Fifth Embodiment> In the above first to fourth embodiments, two or more multi-blade fans 6, 6a, 6b for cooling the inside of the refrigerator are arranged in the same direction. Although the freezer-refrigerator described above has been described, the multi-blade fan 6 may be arranged by appropriately changing the axial direction. FIG. 9 is a sectional view showing a front upper portion of a refrigerator-freezer according to a fifth embodiment of the present invention, and FIG. 10 is a plane sectional view showing the refrigerator-freezer of FIG.
In the figure, the same reference numerals and symbols as those of the above-mentioned respective embodiments indicate the same or corresponding constituent parts as those of the above-mentioned respective embodiments.
【００３３】図のように、各多翼ファン６の軸方向を外
側に変えて配設すれば、庫内へ導かれる空気流７の方向
を変えることができる。例えば、図１０のように、蒸発
器５の幅方向に広い断熱箱体１であっても、熱の漏洩の
比較的大きい壁面付近に冷却空気を送り込むことができ
るので、庫内の温度分布を均一で良好な状態に保つこと
ができる。As shown in the figure, if the axial direction of each multiblade fan 6 is changed to the outside, the direction of the air flow 7 introduced into the inside of the refrigerator can be changed. For example, as shown in FIG. 10, even with the heat insulating box 1 that is wide in the width direction of the evaporator 5, the cooling air can be sent to the vicinity of the wall surface where the heat leakage is relatively large, so that the temperature distribution in the refrigerator can be improved. It can be maintained in a uniform and good state.
【００３４】[0034]
【発明の効果】以上説明したように、請求項１の発明の
冷凍冷蔵庫は、冷凍サイクルと、多翼ファンと、回転数
制御手段とを備え、冷媒循環用の冷凍サイクル内の蒸発
器との熱交換によって冷却された空気を循環させ、断熱
箱体からなる庫内を冷却する複数並列に配設された多翼
ファンの回転数を各々変えて運転することにより、庫内
冷却用の複数の多翼ファン運転時の干渉によって生じる
唸り音を低減できるので、全体の騒音を抑制でき、静か
な冷凍冷蔵庫となる。As described above, the refrigerating refrigerator according to the invention of claim 1 comprises a refrigerating cycle, a multi-blade fan, and a rotation speed control means, and an evaporator in the refrigerating cycle for circulating the refrigerant. By circulating the air cooled by heat exchange to cool the inside of the heat-insulating box and operating the multi-blade fans arranged in parallel at different rotational speeds, a plurality of inside-cooling fans are cooled. The roaring noise caused by the interference during the operation of the multi-blade fan can be reduced, so that the overall noise can be suppressed and the refrigerator / refrigerator becomes quiet.
【００３５】請求項２の発明の冷凍冷蔵庫は、冷凍サイ
クルと、多翼ファンと、回転数制御手段と、起動停止制
御手段とを備え、冷媒循環用の冷凍サイクル内の蒸発器
との熱交換によって冷却された空気を循環させ、断熱箱
体からなる庫内を冷却する複数並列に配設された多翼フ
ァンの回転数を各々変えて運転するとともに、複数の多
翼ファンの電動機、圧縮機の電動機、機械室冷却用ファ
ンの電動機の起動及び停止のタイミングを各々変えて運
転することにより、庫内冷却用の複数の多翼ファン運転
時の干渉によって生じる唸り音を低減できるので、全体
の騒音を抑制できるだけでなく、起動時及び停止時の音
の急激な変化を防止できるので、体感音レベルを低下で
き、使用者に不快感を与えることがない。A refrigerating refrigerator according to a second aspect of the present invention comprises a refrigeration cycle, a multi-blade fan, a rotation speed control means, and a start / stop control means, and heat exchange with an evaporator in a refrigeration cycle for circulating a refrigerant. A plurality of multi-blade fans are operated by changing the rotation speed of each of the multi-blade fans arranged in parallel to circulate the air cooled by the cooling machine to cool the inside of the heat-insulating box, and to operate the motor and compressor. By operating by changing the start and stop timings of the electric motor of the motor and the fan for cooling the machine room, it is possible to reduce the growl noise caused by the interference during the operation of the multiple blade fans for cooling the inside of the refrigerator. Not only the noise can be suppressed, but also abrupt changes in the sound at the time of starting and stopping can be prevented, so that the bodily sensation level can be lowered and the user is not uncomfortable.
【００３６】請求項３の発明の冷凍冷蔵庫は、冷凍サイ
クルと、多翼ファンと、回転数制御手段と、起動停止制
御手段と、起動停止順序制御手段とを備え、冷媒循環用
の冷凍サイクル内の蒸発器との熱交換によって冷却され
た空気を循環させ、断熱箱体からなる庫内を冷却する複
数並列に配設された多翼ファンの回転数を、各々変えて
運転するとともに、複数の多翼ファンの電動機、圧縮機
の電動機、機械室冷却用ファンの電動機の起動及び停止
のタイミングを各々変えて運転し、更に複数の多翼ファ
ンの起動順序及び停止順序を圧縮機の起動毎に各々変え
て運転することにより、庫内冷却用の複数の多翼ファン
運転時の干渉によって生じる唸り音を低減できるので、
全体の騒音を抑制できるだけでなく、起動時及び停止時
の音の急激な変化を防止できるので、体感音レベルを低
下でき、使用者に不快感を与えることがなく、しかも、
複数の多翼ファンの運転時間を平均化できるので、各多
翼ファンの電動機の寿命の平均化を図ることができ、更
には、起動直後に蒸発器を通過する空気流の方向が起動
毎に変化するので、蒸発器上の着霜状態の極端な偏りを
防止でき、蒸発器の着霜耐性の改善を図ることができ
る。A refrigerating refrigerator according to a third aspect of the present invention comprises a refrigeration cycle, a multi-blade fan, a rotation speed control means, a start / stop control means, and a start / stop sequence control means, and is provided in a refrigeration cycle for circulating a refrigerant. The air cooled by heat exchange with the evaporator is circulated to cool the inside of the heat-insulating box, and the number of rotations of the multi-blade fans arranged in parallel is changed while operating. The multi-blade fan electric motor, the compressor electric motor, and the machine room cooling fan electric motor are operated by changing the start and stop timings of each, and the start and stop order of a plurality of multi-blade fans is changed every time the compressor is started. By operating by changing each, it is possible to reduce the roaring noise caused by interference during operation of multiple multi-blade fans for cooling the inside of the refrigerator,
Not only can the overall noise be suppressed, but also abrupt changes in sound during startup and shutdown can be prevented, so that the sensory sound level can be lowered, and the user is not uncomfortable.
Since the operating time of multiple multi-blade fans can be averaged, the life of the electric motor of each multi-blade fan can be averaged, and moreover, the direction of the air flow passing through the evaporator immediately after startup can be changed at each startup. Since it changes, it is possible to prevent an extreme deviation of the frosting state on the evaporator and improve the frosting resistance of the evaporator.
【図１】図１は本発明の第一実施例である冷凍冷蔵庫を
示す側断面図である。FIG. 1 is a side sectional view showing a refrigerator-freezer according to a first embodiment of the present invention.
【図２】図２は図１の冷凍冷蔵庫の正面上部を示す断面
図である。FIG. 2 is a cross-sectional view showing an upper front part of the refrigerator-freezer of FIG.
【図３】図３は本発明の第二実施例である冷凍冷蔵庫の
各電動機の運転状態を示すタイムチャートである。FIG. 3 is a time chart showing an operating state of each electric motor of the refrigerator-freezer according to the second embodiment of the present invention.
【図４】図４は本発明の第三実施例である冷凍冷蔵庫の
各電動機の運転状態を示すタイムチャートである。FIG. 4 is a time chart showing the operating state of each electric motor of the refrigerator-freezer according to the third embodiment of the present invention.
【図５】図５は本発明の第三実施例である冷凍冷蔵庫の
正面上部を示す断面図である。FIG. 5 is a sectional view showing a front upper part of a refrigerator-freezer according to a third embodiment of the present invention.
【図６】図６は同じく本発明の第三実施例である冷凍冷
蔵庫の正面上部を示す断面図である。FIG. 6 is a sectional view showing an upper front part of a refrigerator-freezer according to a third embodiment of the present invention.
【図７】図７は本発明の第四実施例である冷凍冷蔵庫の
正面上部を示す断面図である。FIG. 7 is a sectional view showing a front upper portion of a refrigerator-freezer according to a fourth embodiment of the present invention.
【図８】図８は同じく本発明の第四実施例である他の冷
凍冷蔵庫の正面上部を示す断面図である。FIG. 8 is a sectional view showing an upper front portion of another refrigerator-freezer according to the fourth embodiment of the present invention.
【図９】図９は本発明の第五実施例である冷凍冷蔵庫の
正面上部を示す断面図である。FIG. 9 is a sectional view showing a front upper part of a refrigerator-freezer according to a fifth embodiment of the present invention.
【図１０】図１０は図９の冷凍冷蔵庫を示す平断面図で
ある。10 is a plan sectional view showing the refrigerator-freezer of FIG.
【図１１】図１１は従来の冷凍冷蔵庫を示す側断面図で
ある。FIG. 11 is a side sectional view showing a conventional refrigerator-freezer.
【図１２】図１２は図１１の冷凍冷蔵庫の正面上部を示
す断面図である。FIG. 12 is a cross-sectional view showing an upper front portion of the refrigerator-freezer of FIG. 11.
【図１３】図１３は従来の冷凍冷蔵庫の各電動機の運転
状態を示すタイムチャートである。FIG. 13 is a time chart showing an operating state of each electric motor of the conventional refrigerator-freezer.
１ 断熱箱体 ２ 機械室 ３ 圧縮機 ４ 機械室冷却用ファン ５ 蒸発器 ６ 多翼ファン ６ａ 多翼ファン ６ｂ 多翼ファン ７ 空気流 1 Insulation Box 2 Machine Room 3 Compressor 4 Machine Room Cooling Fan 5 Evaporator 6 Multiblade Fan 6a Multiblade Fan 6b Multiblade Fan 7 Air Flow
Claims (3)
有する冷媒循環用の冷凍サイクルと、 前記蒸発器との熱交換によって冷却された空気を循環さ
せ、断熱箱体からなる庫内を冷却する複数並列に配設さ
れた多翼ファンと、 前記複数の多翼ファンの回転数を各々変えて運転する回
転数制御手段とを具備することを特徴とする冷凍冷蔵
庫。1. A refrigerating cycle for circulating a refrigerant having a compressor, a condenser, a decompressor, and an evaporator, and an interior of a heat-insulating box for circulating air cooled by heat exchange with the evaporator. A refrigerating refrigerator, comprising: a plurality of multi-blade fans arranged in parallel for cooling a plurality of fans; and a rotation speed control unit that operates by changing the rotation speeds of the plurality of multi-blade fans.
有する冷媒循環用の冷凍サイクルと、 前記蒸発器との熱交換によって冷却された空気を循環さ
せ、断熱箱体からなる庫内を冷却する複数並列に配設さ
れた多翼ファンと、 前記複数の多翼ファンの回転数を各々変えて運転する回
転数制御手段と、 前記複数の多翼ファンの電動機、圧縮機の電動機、機械
室冷却用ファンの電動機の起動及び停止のタイミングを
各々変えて運転する起動停止制御手段とを具備すること
を特徴とする冷凍冷蔵庫。2. A refrigeration cycle for circulating a refrigerant, which has a compressor, a condenser, a pressure reducer, and an evaporator, and circulates the air cooled by heat exchange with the evaporator, and is an inside of a storage box made of a heat insulating box. A plurality of multi-blade fans arranged in parallel to cool the plurality of multi-blade fans, rotation speed control means for operating by changing the rotation speed of each of the plurality of multi-blade fans, an electric motor of the plurality of multi-blade fans, a motor of a compressor, A freezer-refrigerator, comprising: a start-stop control unit that operates by changing start and stop timings of an electric motor of a machine room cooling fan.
有する冷媒循環用の冷凍サイクルと、 前記蒸発器との熱交換によって冷却された空気を循環さ
せ、断熱箱体からなる庫内を冷却する複数並列に配設さ
れた多翼ファンと、 前記複数の多翼ファンの回転数を各々変えて運転する回
転数制御手段と、 前記複数の多翼ファンの電動機、圧縮機の電動機、機械
室冷却用ファンの電動機の起動及び停止のタイミングを
各々変えて運転する起動停止制御手段と、 前記複数の多翼ファンの起動順序及び停止順序を圧縮機
の起動毎に各々変えて運転する起動停止順序制御手段と
を具備することを特徴とする冷凍冷蔵庫。3. A refrigeration cycle for circulating a refrigerant having a compressor, a condenser, a decompressor, and an evaporator, and an air cooled by the heat exchange with the evaporator to circulate the inside of a storage box made of a heat-insulating box. A plurality of multi-blade fans arranged in parallel to cool the plurality of multi-blade fans, rotation speed control means for operating by changing the rotation speed of each of the plurality of multi-blade fans, an electric motor of the plurality of multi-blade fans, a motor of a compressor, A start / stop control unit that operates by changing the start and stop timings of the electric motor of the machine room cooling fan, and a start that operates by changing the start order and stop order of the plurality of multiblade fans each time the compressor is started. A freezer-refrigerator, comprising: stop order control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4261500A JPH06117743A (en) | 1992-09-30 | 1992-09-30 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4261500A JPH06117743A (en) | 1992-09-30 | 1992-09-30 | Refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06117743A true JPH06117743A (en) | 1994-04-28 |
Family
ID=17362774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4261500A Pending JPH06117743A (en) | 1992-09-30 | 1992-09-30 | Refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06117743A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07248654A (en) * | 1994-03-11 | 1995-09-26 | Ricoh Co Ltd | Blast control device for image forming device |
| JPH09212044A (en) * | 1996-02-01 | 1997-08-15 | Ricoh Co Ltd | Image forming device |
| JP2000146403A (en) * | 1998-11-06 | 2000-05-26 | Sharp Corp | Refrigerator |
| JP2015117851A (en) * | 2013-12-17 | 2015-06-25 | 株式会社東芝 | Refrigerator |
| JP2016075465A (en) * | 2014-08-20 | 2016-05-12 | 株式会社東芝 | refrigerator |
| US9541927B2 (en) | 2011-06-24 | 2017-01-10 | Fujitsu Limited | Electronic system, a method and non-transitory computer-readable recording medium for controlling an electronic system |
| WO2019155666A1 (en) * | 2018-02-08 | 2019-08-15 | シャープ株式会社 | Electronic apparatus, and indoor unit |
| JP2020008189A (en) * | 2018-07-04 | 2020-01-16 | 東芝ライフスタイル株式会社 | refrigerator |
| JPWO2019069363A1 (en) * | 2017-10-03 | 2020-10-15 | 三菱電機株式会社 | Electric motor control device |
-
1992
- 1992-09-30 JP JP4261500A patent/JPH06117743A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07248654A (en) * | 1994-03-11 | 1995-09-26 | Ricoh Co Ltd | Blast control device for image forming device |
| JPH09212044A (en) * | 1996-02-01 | 1997-08-15 | Ricoh Co Ltd | Image forming device |
| JP2000146403A (en) * | 1998-11-06 | 2000-05-26 | Sharp Corp | Refrigerator |
| US9541927B2 (en) | 2011-06-24 | 2017-01-10 | Fujitsu Limited | Electronic system, a method and non-transitory computer-readable recording medium for controlling an electronic system |
| JP2015117851A (en) * | 2013-12-17 | 2015-06-25 | 株式会社東芝 | Refrigerator |
| JP2016075465A (en) * | 2014-08-20 | 2016-05-12 | 株式会社東芝 | refrigerator |
| JP2020073834A (en) * | 2014-08-20 | 2020-05-14 | 東芝ライフスタイル株式会社 | refrigerator |
| JP2021156571A (en) * | 2014-08-20 | 2021-10-07 | 東芝ライフスタイル株式会社 | refrigerator |
| JPWO2019069363A1 (en) * | 2017-10-03 | 2020-10-15 | 三菱電機株式会社 | Electric motor control device |
| WO2019155666A1 (en) * | 2018-02-08 | 2019-08-15 | シャープ株式会社 | Electronic apparatus, and indoor unit |
| JPWO2019155666A1 (en) * | 2018-02-08 | 2021-02-04 | シャープ株式会社 | Electronic equipment, indoor unit |
| JP2020008189A (en) * | 2018-07-04 | 2020-01-16 | 東芝ライフスタイル株式会社 | refrigerator |
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