JP2013024492A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
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- JP2013024492A JP2013024492A JP2011160575A JP2011160575A JP2013024492A JP 2013024492 A JP2013024492 A JP 2013024492A JP 2011160575 A JP2011160575 A JP 2011160575A JP 2011160575 A JP2011160575 A JP 2011160575A JP 2013024492 A JP2013024492 A JP 2013024492A
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- Prior art keywords
- door
- refrigerator
- heat insulating
- box
- compressor
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Classifications
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- 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
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
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- 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
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
本発明は冷蔵庫の断熱箱体と扉との構造に関するものである。 The present invention relates to the structure of a heat insulating box and a door of a refrigerator.
近年、冷蔵庫は地球環境保護の観点から更なる省エネルギー化が進むとともに、その使い勝手や収納性の向上が求められている。 In recent years, refrigerators are required to be further energy-saving from the viewpoint of protecting the global environment, and to be improved in usability and storage.
従来この種の冷蔵庫は、最下部に配設された貯蔵室の収納容積のアップを図るために、断熱箱体の貯蔵室内最上部の後背部が下がるように窪ませた凹部を設け、その凹部に冷凍サイクルの構成機器を収納するという方法がとられていた(例えば、特許文献1参照)。 Conventionally, in order to increase the storage capacity of the storage chamber disposed at the bottom, this type of refrigerator is provided with a recess that is recessed so that the back of the uppermost storage chamber of the heat insulation box is lowered. The method of storing the component apparatus of a refrigerating cycle was taken (for example, refer patent document 1).
図7は、前記公報に記載された従来の冷蔵庫を示すものである。 FIG. 7 shows a conventional refrigerator described in the publication.
図7に示すように、断熱箱体1の外壁を形成する外箱2と、断熱箱体1の庫内壁を形成する内箱3と、外箱2と内箱3の間に発泡充填させたウレタン断熱材4からなり、上から順に、冷蔵室5、冷凍室6、野菜室7を有し、冷蔵室5の前面開口には、冷蔵室回転扉8を設けている。また、断熱箱体1の中央から下方部に位置する冷凍室6と野菜室7は収納性と使い勝手を考慮して、簡易に取り出しが行える引出しタイプの冷凍室引出し扉9と野菜室引出し扉12を設けてある。 As shown in FIG. 7, the outer box 2 that forms the outer wall of the heat insulating box 1, the inner box 3 that forms the inner wall of the heat insulating box 1, and foam filling between the outer box 2 and the inner box 3. It consists of a urethane heat insulating material 4, and has a refrigerator compartment 5, a freezer compartment 6, and a vegetable compartment 7 in order from the top, and a refrigerator compartment rotary door 8 is provided at the front opening of the refrigerator compartment 5. In addition, the freezer compartment 6 and the vegetable compartment 7 located in the lower part from the center of the heat insulating box 1 are a drawer type freezer compartment drawer door 9 and a vegetable compartment drawer door 12 that can be easily taken out in consideration of storability and convenience. Is provided.
断熱箱体1に設けた凹部20は、外箱上面21と外箱背面22に渡る天面後背部を冷蔵室5の最上部の後背部が下がるように窪ませた箇所である。凹部20はその左右が断熱箱体1の左右壁にて塞がれ上方および背方に開放しており、この凹部20の開放部は、上板23とこれにほぼ直角な背板24とからなる凹部カバー25にて覆われている。また、凹部カバー25はネジなどにて断熱箱体1に取外し可能に固定されている。 The recessed part 20 provided in the heat insulation box 1 is a place where the top back part over the outer box upper surface 21 and the outer box back surface 22 is recessed so that the uppermost back part of the refrigerator compartment 5 is lowered. The left and right sides of the recess 20 are closed by the left and right walls of the heat insulation box 1 and open upward and backward. The open portion of the recess 20 is formed by an upper plate 23 and a back plate 24 substantially perpendicular to the upper plate 23. It is covered with the recessed part cover 25 which becomes. The recess cover 25 is detachably fixed to the heat insulating box 1 with screws or the like.
冷凍サイクルの構成機器である圧縮機31と凝縮器32は、機械室ファン33と共に凹部20内に収まるように配設され、凹部カバー25にて覆われている。また、凹部カバー25の上板23と背板24には、放熱のために複数の通風孔34が設けられている。 The compressor 31 and the condenser 32 that are components of the refrigeration cycle are disposed so as to be accommodated in the recess 20 together with the machine room fan 33, and are covered with the recess cover 25. The upper plate 23 and the back plate 24 of the recess cover 25 are provided with a plurality of ventilation holes 34 for heat dissipation.
また、冷凍サイクルの構成機器である蒸発器35は冷凍室6の後背部に冷却ファン36と共に配設されており、最下部の貯蔵室である野菜室7は奥行き深く構成してある。 The evaporator 35, which is a component of the refrigeration cycle, is disposed with a cooling fan 36 at the back of the freezer compartment 6, and the vegetable compartment 7, which is the lowermost storage compartment, is deeply configured.
これにより、断熱箱体1の背面下部に圧縮機31や凝縮器32を収納するものと比較して、野菜室7の内容積を大きく、深く構成できる。また、高圧機器を断熱箱体1の上部に配置しても、最下部の貯蔵室である野菜室7への収納重量の増加により、断熱箱体1の重心が下がり安定化が図れる。 Thereby, compared with what stores the compressor 31 and the condenser 32 in the back lower part of the heat insulation box 1, the internal volume of the vegetable compartment 7 can be enlarged and comprised deeply. Moreover, even if a high voltage | pressure apparatus is arrange | positioned at the upper part of the heat insulation box 1, the gravity center of the heat insulation box 1 falls and stabilization can be aimed at by the increase in the storage weight to the vegetable compartment 7 which is the lowest storage room.
しかしながら、上記従来の構成では、冷蔵庫の振動発生源の一つである圧縮機を断熱箱体の最上部に設けたことにより、一番使用頻度が高い冷蔵室回転扉が圧縮機の振動によって振動しやすくなるという課題があった。 However, in the above-described conventional configuration, the compressor that is one of the vibration generation sources of the refrigerator is provided at the top of the heat insulating box, so that the refrigerator door that is used most frequently vibrates due to the vibration of the compressor. There was a problem of being easy to do.
従来圧縮機が断熱箱体の下部に設けられた場合でも、一番上に配置された扉は他の扉よりも高い位置にあるため揺れやすく、上記従来の構成では、冷蔵室回転扉の振動がより顕著に表れる可能性がある。 Even when the conventional compressor is installed in the lower part of the heat insulation box, the top door is located higher than the other doors, so it is easy to shake. May appear more prominently.
特に圧縮機の運転周波数を複数のレベルに切替えて運転制御するインバータ制御により冷蔵庫の消費電力量を低減する場合には、圧縮機の最低周波数を家庭用電源の周波数である50Hzより低くすると、冷蔵室回転扉の固有振動数と同一になる場合があり、冷蔵室回転扉が共振しやすくなる。 In particular, when the power consumption of the refrigerator is reduced by inverter control that controls the operation by switching the operation frequency of the compressor to a plurality of levels, the refrigerator is refrigerated if the minimum frequency of the compressor is lower than the frequency of the household power supply 50 Hz. It may become the same as the natural frequency of the room revolving door, and the refrigerating room revolving door is likely to resonate.
さらに、冷蔵室回転扉の冷蔵室側に貯蔵品を収容可能とした場合には、貯蔵品の重量に応じて、貯蔵品を含む冷蔵室回転扉の固有振動数が連続的に低いほうへ移動するため、共振が発生する可能性が増す。 In addition, when storage items can be stored in the refrigerating room side of the refrigerating room revolving door, the natural frequency of the refrigerating room revolving door containing the stored items moves continuously to the lower side according to the weight of the revolving item. Therefore, the possibility that resonance will occur increases.
前記従来の課題を解決するために、本発明の冷蔵庫は、仕切り壁によって上下方向に少なくとも二つ以上の断熱区画された貯蔵室を設けた断熱箱体と、貯蔵室をそれぞれ閉塞する扉と、最上に配置された貯蔵室を閉塞する最上扉を備えた冷蔵庫において、断熱箱体は外箱と内箱との間に断熱材を発泡充填したものであり、少なくとも最上に配置された最上仕切り壁と前記内箱とを一体で形成し、最上仕切り壁内の断熱材と、断熱箱体内の断熱材とを一体で発泡充填すると共に、最上扉の固有振動数が圧縮機を運転する最低周波数よりも低いとしたものである。 In order to solve the above-mentioned conventional problems, the refrigerator of the present invention includes a heat insulating box provided with at least two or more heat-insulating storage chambers in the vertical direction by a partition wall, and doors that respectively close the storage chambers, In a refrigerator having an uppermost door that closes the storage room disposed at the top, the heat insulating box is a foam filled with a heat insulating material between the outer box and the inner box, and at least the uppermost partition wall disposed at the top And the inner box are integrally formed, and the heat insulating material in the uppermost partition wall and the heat insulating material in the heat insulating box are integrally foamed and filled, and the natural frequency of the uppermost door is lower than the lowest frequency at which the compressor is operated. Is also low.
これによって、最上仕切り壁と内箱との継ぎ目が無くなり、部品同士の接触による微小な隙間を廃止できるので、圧縮機の振動による断熱箱体の振動発生を抑制する。 As a result, the joint between the uppermost partition wall and the inner box is eliminated, and a minute gap due to contact between components can be eliminated, so that generation of vibration in the heat insulating box due to vibration of the compressor is suppressed.
また、断熱箱体内の断熱材を最上仕切り壁と一体で形成することにより断熱箱体の剛性が増し、圧縮機の振動伝播を抑制する。 Moreover, by forming the heat insulating material in the heat insulating box integrally with the uppermost partition wall, the rigidity of the heat insulating box is increased and the vibration propagation of the compressor is suppressed.
また、最上扉の固有振動数が圧縮機を運転する最低周波数よりも低いので、例えばインバータ制御によって圧縮機の運転周波数を切替えたり、最上扉に貯蔵品を収容した場合でも最上扉が共振することを防止できる。 In addition, since the natural frequency of the top door is lower than the lowest frequency at which the compressor operates, the top door resonates even when the operating frequency of the compressor is switched by, for example, inverter control, or when stored items are accommodated in the top door. Can be prevented.
本発明の冷蔵庫は、圧縮機の振動に対して、防振部材を追加することなく最上扉の振動を抑制し、共振を防止できる。 The refrigerator of the present invention can suppress the vibration of the uppermost door and prevent the resonance without adding a vibration isolating member against the vibration of the compressor.
第1の発明は仕切り壁によって上下方向に少なくとも二つ以上の断熱区画された貯蔵室を設けた断熱箱体と、前記貯蔵室をそれぞれ閉塞する扉と、最上に配置された貯蔵室を閉塞する最上扉を備えた冷蔵庫において、前記断熱箱体は外箱と内箱との間に断熱材を発泡
充填したものであり、少なくとも最上に配置された最上仕切り壁と前記内箱とを一体で形成し、前記最上仕切り壁内の断熱材と、前記断熱箱体内の断熱材とを一体で発泡充填すると共に、前記最上扉の固有振動数が圧縮機を運転する最低周波数よりも低いとしたものであり、最上仕切り壁と内箱との継ぎ目が無くなり、部品同士の接触による微小な隙間を廃止できるので、圧縮機の振動による断熱箱体の振動発生を抑制し、最上扉の振動を抑制できる。
1st invention closes the heat insulation box which provided the storage room provided with at least two or more heat insulation division in the up-and-down direction by the partition wall, the door which respectively closes the storage room, and the storage room arranged at the top In the refrigerator having the top door, the heat insulating box is a foam filled with a heat insulating material between the outer box and the inner box, and at least the uppermost partition wall arranged at the top and the inner box are integrally formed. In addition, the heat insulating material in the uppermost partition wall and the heat insulating material in the heat insulating box are integrally foam-filled, and the natural frequency of the uppermost door is lower than the lowest frequency for operating the compressor. Yes, since there is no seam between the uppermost partition wall and the inner box and a minute gap due to contact between parts can be eliminated, the vibration generation of the heat insulating box due to the vibration of the compressor can be suppressed, and the vibration of the uppermost door can be suppressed.
また、断熱箱体内の断熱材が一体で形成されることにより断熱箱体の剛性が増し、圧縮機の振動伝播を抑制できるので、さらに最上扉の振動を抑制できる。 Moreover, since the heat insulating material in the heat insulating box is integrally formed, the rigidity of the heat insulating box is increased and vibration propagation of the compressor can be suppressed, so that vibration of the uppermost door can be further suppressed.
また、最上扉の固有振動数が圧縮機を運転する最低周波数よりも低いので、例えばインバータ制御によって圧縮機の運転周波数を切替えたり、最上扉に貯蔵品を収容した場合でも最上扉が共振することを防止できる。 In addition, since the natural frequency of the top door is lower than the lowest frequency at which the compressor operates, the top door resonates even when the operating frequency of the compressor is switched by, for example, inverter control, or when stored items are accommodated in the top door. Can be prevented.
しかも、防振部材などの追加部品を必要としないので、コストや組立工数は増加しない。 In addition, since no additional parts such as a vibration isolating member are required, the cost and assembly man-hour are not increased.
第2の発明は、特に、第1の発明の断熱箱体の上部奥側に圧縮機を備えたことにより、下部の貯蔵室の奥行きを広く設けることができる。 In the second invention, in particular, the compressor is provided on the upper back side of the heat insulating box of the first invention, so that the depth of the lower storage chamber can be widened.
大型冷蔵庫の場合には、断熱箱体の上部奥側は使用者の手が届きにくく使い勝手の悪い空間であったため、本部に圧縮機を備えても使用者の使い勝手は悪化しない。 In the case of a large refrigerator, the upper back side of the heat insulation box is a space that is difficult for the user to reach and is not easy to use. Therefore, even if a compressor is provided at the headquarters, the user convenience is not deteriorated.
第3の発明は、特に、第1の発明または第2の発明の最上扉を他の扉よりも重く構成したことで、容易に最上扉の固有振動数を低くできる。 In the third invention, in particular, the uppermost door of the first or second invention is configured to be heavier than the other doors, so that the natural frequency of the uppermost door can be easily lowered.
第4の発明は、特に、第1〜第3のいずれか一つの発明の最上扉は左右のいずれか一端の上下をヒンジで回動自在に開閉可能に構成され、下側のヒンジを最上仕切り壁に固定したことにより、最上扉を引出し自在に構成した場合に比べて断熱箱体と最上扉との連結部の隙間を狭く設定できるので、連結部での振動発生を抑制できる。 According to a fourth aspect of the present invention, in particular, the uppermost door of any one of the first to third aspects of the invention is configured such that the upper and lower ends of either one of the left and right sides can be freely opened and closed by hinges, and the lower hinge is divided into uppermost partitions. By fixing to the wall, the gap between the connecting portion between the heat insulating box and the uppermost door can be set narrower than in the case where the uppermost door is configured to be freely drawn out, so that the occurrence of vibration at the connecting portion can be suppressed.
第5の発明は、特に、第1〜第4のいずれか一つの発明の扉と断熱箱体との隙間を弾性部材でシールしたことにより、断熱箱体から最上扉への振動伝播を抑制できるので最上扉の振動を抑制できる。 In particular, the fifth invention can suppress the propagation of vibration from the heat insulation box to the uppermost door by sealing the gap between the door of any one of the first to fourth inventions and the heat insulation box with an elastic member. Therefore, vibration of the top door can be suppressed.
第6の発明は、特に、第1〜第5のいずれか一つの発明の最上扉は断熱箱体の左右方向に左扉と右扉とに分割され、前記左扉と前記右扉とのうち、重たい方の扉の近くに圧縮機を配置したことにより、圧縮機の振動が、振動しにくい重たい方の扉に優先的に伝播するので、軽い方の扉の振動を抑制することができる。 In the sixth invention, in particular, the uppermost door of any one of the first to fifth inventions is divided into a left door and a right door in the left-right direction of the heat insulating box, and the left door and the right door Since the compressor is arranged near the heavier door, the vibration of the compressor is preferentially propagated to the heavier door that is hard to vibrate, so that the vibration of the lighter door can be suppressed.
以下、本発明の実施の形態について、図面を参照しながら説明する。
なお、本実施の形態によって本発明が限定されるものではない。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Note that the present invention is not limited to the present embodiment.
(実施の形態1)
図1は本発明の実施の形態1における冷蔵庫の正面図、図2は同実施の形態の冷蔵庫の断面図、図3は同実施の形態の冷蔵庫の断熱箱体の分解斜視図を示すものである。
(Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of the refrigerator according to the embodiment, and FIG. 3 is an exploded perspective view of a heat insulating box of the refrigerator according to the embodiment. is there.
図1から図3において、冷蔵庫本体50の断熱箱体51は、樹脂にて形成された内箱52と鋼板などの金属磁性体にて形成された外箱53との間に断熱材54を充填した断熱壁から形成されるものであり、前面開口部51aを有し、仕切り壁55により、上部から冷
蔵室56、冷凍室57と、複数の断熱区画された貯蔵室を形成している。
1 to 3, a heat insulating box 51 of the refrigerator body 50 is filled with a heat insulating material 54 between an inner box 52 formed of resin and an outer box 53 formed of a metal magnetic material such as a steel plate. It has a front opening 51a, and a partition wall 55 forms a refrigerator compartment 56, a freezer compartment 57, and a plurality of insulated compartment storage rooms from above.
また、冷蔵室56は冷蔵温度帯に、冷凍室57は冷凍温度帯にそれぞれ冷却保持される。 The refrigerator compartment 56 is cooled and held in the refrigerator temperature zone, and the freezer compartment 57 is kept in the refrigerator temperature zone.
内箱52は冷蔵室56の上下左右面と奥面とを一体で形成し、前面を開口した略箱形状の上内箱52aと、冷凍室57の上下左右面と奥面とを一体で形成し、前面を開口した略箱形状の下内箱52bとから構成される。 The inner box 52 is integrally formed with the upper, lower, left and right surfaces and the rear surface of the refrigerator compartment 56, and the upper box 52a having a substantially box shape with the front opened, and the upper, lower, left and right surfaces and the rear surface of the freezing chamber 57 are formed integrally. The lower inner box 52b having a substantially box shape with the front surface opened.
仕切り壁55は上内箱52aの下面と、下内箱52bの上面と、仕切り壁55の前面に備えられ、鋼板などの金属磁性体にて形成された仕切り板55aとから構成され、仕切り壁55の内部空間には断熱箱体51の断熱材54を一体で発泡充填している。 The partition wall 55 includes a lower surface of the upper inner box 52a, an upper surface of the lower inner box 52b, and a partition plate 55a that is provided on the front surface of the partition wall 55 and is formed of a metal magnetic material such as a steel plate. In the internal space 55, the heat insulating material 54 of the heat insulating box 51 is integrally foam-filled.
仕切り板55aは断熱箱体51の前後方向において外箱53の最前面と同位置に備えられ、前面開口部51aの一部を形成する。 The partition plate 55a is provided at the same position as the forefront surface of the outer box 53 in the front-rear direction of the heat insulating box 51, and forms a part of the front opening 51a.
また、各貯蔵室にはそれぞれ全閉時に前面開口部51aを閉塞する冷蔵室ドア56aと冷凍室ドア57aとを備える。 Each storage room is provided with a refrigerator door 56a and a freezer door 57a that close the front opening 51a when fully closed.
冷蔵室ドア56a,冷凍室ドア57aは、右側上下端をそれぞれ回転軸を有する上ヒンジ60と、中ヒンジ61と、下ヒンジ62とで断熱箱体51と個別に回動自在に連結される。 The refrigerator compartment door 56a and the freezer compartment door 57a are individually pivotably connected to the heat insulating box 51 by an upper hinge 60, a middle hinge 61, and a lower hinge 62 each having a rotation axis at the upper right and lower ends.
また、上ヒンジ60と下ヒンジ62とはそれぞれ断熱箱体51の上下端に、中ヒンジ61は仕切り板55aに固着されている。 The upper hinge 60 and the lower hinge 62 are fixed to the upper and lower ends of the heat insulating box 51, and the middle hinge 61 is fixed to the partition plate 55a.
各貯蔵室ドアの断熱箱体51側の面は、全閉時に前面開口部51aとの間に5mm程度の空間63を有し、空間63は各貯蔵室ドアの断熱箱体51側の面の上下左右4辺に設けられたマグネットを有するガスケット64の磁力にて前面開口部51aにガスケット64を吸着させることで密着させることができ、各貯蔵室は略密閉にシールされる。 The surface of each storage room door on the side of the heat insulation box 51 has a space 63 of about 5 mm between the front opening 51a when fully closed, and the space 63 is a surface of the surface of the storage room door on the side of the heat insulation box 51. The gasket 64 can be brought into close contact with the front opening 51a by the magnetic force of the gasket 64 having magnets provided on the four sides of the top, bottom, left and right sides, and each storage chamber is sealed substantially hermetically.
また、ガスケット64はゴムなどの軟質材で形成された中空の弾性部材であり、空間63の距離が多少変動しても、ガスケット64の伸縮とマグネットの吸着保持により、各貯蔵室がシール保持できるように構成される。 Further, the gasket 64 is a hollow elastic member formed of a soft material such as rubber. Even if the distance of the space 63 slightly varies, each storage chamber can be held in a sealed state by the expansion and contraction of the gasket 64 and the adsorption and holding of the magnet. Configured as follows.
冷蔵室ドア56aと冷凍室ドア57aとの大きさは断熱箱体51の幅方向においては同一であるが、同じく上下方向においては、冷蔵室56の間口高さが冷凍室57の間口高さよりも高く構成されているため、これに伴って冷蔵室ドア56aは冷凍室ドア57aよりも大きい。 The size of the refrigerator compartment door 56a and the freezer compartment door 57a is the same in the width direction of the heat insulating box 51, but the opening height of the refrigerator compartment 56 is also higher than the opening height of the freezer compartment 57 in the vertical direction. Since it is configured higher, the refrigerator door 56a is accordingly larger than the freezer door 57a.
また、冷蔵室ドア56aと冷凍室ドア57aとは内部に断熱材を充填した断熱壁であり、冷凍室ドア57aの方が厚みがあるものの、各貯蔵室ドアの重量は冷蔵室ドア56aの方が重たくなるように構成されている。 Further, the refrigerator compartment door 56a and the freezer compartment door 57a are heat insulation walls filled with a heat insulating material, and although the freezer compartment door 57a is thicker, the weight of each storage compartment door is the same as that of the refrigerator compartment door 56a. Is configured to be heavy.
冷蔵室ドア56aの冷蔵室56側の面には貯蔵品を収容可能なドア棚を複数備え、上から順に、調味料など小物を収容する小物棚70と、飲料缶などを収容する飲料棚71と、ペットボトルなどの大物飲料を収容するボトル棚72とを、上下方向に適正な間隔を有して配置している。 The surface of the refrigerator compartment door 56a on the side of the refrigerator compartment 56 is provided with a plurality of door shelves that can store stored items, and in order from the top, an accessory shelf 70 that contains accessories such as seasonings, and a beverage shelf 71 that contains beverage cans and the like. And the bottle shelf 72 which accommodates large drinks, such as a PET bottle, is arrange | positioned with an appropriate space | interval in the up-down direction.
また、冷蔵室ドア56aのドア棚を含む固有振動数は33Hzとしている。 The natural frequency including the door shelf of the refrigerator compartment door 56a is 33 Hz.
一方、冷凍室ドア57aにはドア棚を備えず、冷凍室ドア57aの固有振動数は40Hzとしている。 On the other hand, the freezer compartment door 57a is not provided with a door shelf, and the natural frequency of the freezer compartment door 57a is 40 Hz.
断熱箱体51は各貯蔵室を所定の温度に冷却保持する冷凍サイクル(図示せず)を有し、圧縮機80は、冷凍サイクルの一部を形成している。 The heat insulation box 51 has a refrigeration cycle (not shown) for cooling and holding each storage chamber at a predetermined temperature, and the compressor 80 forms a part of the refrigeration cycle.
この圧縮機80はピストンがシリンダ内を往復運動することで冷媒の圧縮を行う往復運動型圧縮機であり、圧縮機80および冷凍サイクルの冷媒として炭化水素系冷媒である、たとえばイソブタンを使用している。 The compressor 80 is a reciprocating compressor that compresses a refrigerant by reciprocating a piston in a cylinder. The compressor 80 and a hydrocarbon-based refrigerant, for example, isobutane, are used as refrigerants for the refrigeration cycle. Yes.
また、圧縮機80は冷蔵庫本体50の消費電力量を低減するために、制御部90にて圧縮機80の運転周波数を複数のレベルに切替える、インバータ制御にて運転される。 The compressor 80 is operated by inverter control in which the control unit 90 switches the operation frequency of the compressor 80 to a plurality of levels in order to reduce the power consumption of the refrigerator main body 50.
本実施の形態では、圧縮機80を運転する最低周波数を家庭用電源の周波数よりも低い35Hzとしている。 In the present embodiment, the lowest frequency for operating the compressor 80 is set to 35 Hz, which is lower than the frequency of the household power supply.
圧縮機80と制御部90とは、断熱箱体51の下部奥側の下凹部51bに設けられた機械室100に備えられ、かつ圧縮機80は断熱箱体51の左右方向において各貯蔵室ドアのヒンジ側に配置されている。 The compressor 80 and the control unit 90 are provided in the machine room 100 provided in the lower recess 51 b on the lower back side of the heat insulation box 51, and the compressor 80 is connected to each storage room door in the left-right direction of the heat insulation box 51. It is arranged on the hinge side.
以上のように構成された冷蔵庫について、以下その動作、作用を説明する。 About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
まず、冷蔵庫本体50に家庭用電源を入力すると、圧縮機80の圧縮動作により吐出された高温高圧の冷媒が冷凍サイクル内を循環しながら、各貯蔵室を所定の設定温度帯に冷却保持する。 First, when a household power source is input to the refrigerator main body 50, the high-temperature and high-pressure refrigerant discharged by the compression operation of the compressor 80 circulates in the refrigeration cycle, and cools and holds each storage chamber at a predetermined set temperature range.
この時、制御部90は各貯蔵室の状況に応じて圧縮機80の運転周波数を最適値に複数のレベルで切替えながら、冷蔵庫本体50の消費電力量が低くなるように圧縮機80を運転する。 At this time, the control unit 90 operates the compressor 80 so that the power consumption of the refrigerator main body 50 is reduced while switching the operation frequency of the compressor 80 to the optimum value at a plurality of levels according to the situation of each storage room. .
例えば、最初に家庭用電源を入力した時や、貯蔵室内に一度に多くの貯蔵品を収容した時など、貯蔵室内温度が所定の温度より高い場合には圧縮機を最大周波数で運転し、それから徐々に貯蔵室温度が低くなってくると共に圧縮機80の運転周波数を低いレベルに切替え、最終的には最低の運転周波数である35Hzにて運転する。 For example, when the storage room temperature is higher than a predetermined temperature, such as when the household power supply is first input or when many stored items are stored in the storage room at a time, the compressor is operated at the maximum frequency, and then As the storage room temperature gradually decreases, the operation frequency of the compressor 80 is switched to a low level, and finally the operation is performed at 35 Hz which is the lowest operation frequency.
また、使用者は冷蔵室ドア56aを開けて、各ドア棚に貯蔵品を自由に出し入れできる。 Moreover, the user can open and close the refrigerator compartment door 56a, and can freely put in and out stored items in each door shelf.
この時、ドア棚に収容した貯蔵品の量に応じて、冷蔵室ドア56a全体の固有振動数は低い方向へ連続的に変化するが、ドア棚に貯蔵品を収容しない状態の固有振動数が33Hzなので、冷蔵室ドア56a全体の固有振動数が圧縮機80の最低周波数である35Hzになることはない。 At this time, the natural frequency of the entire refrigerator compartment door 56a continuously changes in a low direction according to the amount of stored items stored in the door shelf, but the natural frequency in a state where the stored items are not stored in the door shelf. Since it is 33 Hz, the natural frequency of the entire refrigerator compartment door 56a does not become 35 Hz, which is the lowest frequency of the compressor 80.
また、冷凍室ドア57aは冷蔵室ドア56aより重量が軽いので、冷蔵室ドア56aよりも固有振動数が大きくなり、圧縮機の最低周波数35Hzよりも大きい40Hzとしているが、冷凍室ドア57aにはドア棚を備えていないので、冷凍室ドア57a全体の固有振動数は変化せず、圧縮機80を40Hzで運転しない限り、冷凍室ドア57aの共振は発生しない。 Moreover, since the freezer compartment door 57a is lighter in weight than the freezer compartment door 56a, the natural frequency is larger than that of the freezer compartment door 56a and is set to 40 Hz which is higher than the lowest frequency 35 Hz of the compressor. Since the door shelf is not provided, the natural frequency of the entire freezer compartment door 57a does not change, and the freezer compartment door 57a does not resonate unless the compressor 80 is operated at 40 Hz.
なお、冷凍室ドア57aにもドア棚を設ける場合には、貯蔵品収容量が最大時の冷凍室ドア57aの固有振動数を測定して、その周波数から冷凍室ドア57aに貯蔵しないときの固有振動数である40Hzの範囲内で圧縮機80を運転しなければ共振しない。 In addition, when providing the shelf shelf also in the freezer compartment door 57a, the natural frequency of the freezer compartment door 57a when the amount of stored goods is the maximum is measured, and the natural frequency when not storing in the freezer compartment door 57a from the frequency is measured. Unless the compressor 80 is operated within the frequency range of 40 Hz, resonance does not occur.
本実施の形態では、圧縮機80の最低時の最低周波数を35Hzとしたが、圧縮機80の運転周波数を低くした方が冷蔵庫本体50の消費電力量は低減できる。 In the present embodiment, the lowest minimum frequency of the compressor 80 is set to 35 Hz. However, the power consumption of the refrigerator main body 50 can be reduced by lowering the operating frequency of the compressor 80.
そのため、冷蔵室ドア56aの重量のバラツキ範囲を狭くすることができれば最低周波数を34Hzにしても良く、さらに冷蔵室ドア56aを大きくするなど重量を増すことができれば、それに伴って最低周波数を低くできる。 Therefore, if the variation range of the weight of the refrigerator compartment door 56a can be narrowed, the minimum frequency may be 34 Hz, and if the weight can be increased by increasing the refrigerator compartment door 56a, the minimum frequency can be lowered accordingly. .
また、仕切り壁55を内箱52と一体で形成したので、仕切り壁55と断熱箱体51との間の隙間を完全に廃止している。 Further, since the partition wall 55 is formed integrally with the inner box 52, the gap between the partition wall 55 and the heat insulation box 51 is completely abolished.
隙間があると、圧縮機80などから断熱箱体51が加震された時に、微小な隙間部で振動が発生するとビビリ音が発生することがあるが、本構造においてはその可能性は無い。 If there is a gap, chatter noise may be generated when vibration is generated in a minute gap when the heat insulating box 51 is vibrated from the compressor 80 or the like, but this structure does not have such a possibility.
また、隙間があるということは断熱箱体51が変形しやすくなるということでもある。 Further, the presence of a gap also means that the heat insulating box 51 is easily deformed.
特に本実施の形態のように最上の配置された冷蔵室ドア56aにドア棚を備えた場合には、断熱箱体51の生産直後の変形だけでなく、使用者がドア棚に貯蔵品を収容した際の変形も考慮する必要がある。 In particular, in the case where the uppermost refrigerated compartment door 56a is provided with a door shelf as in the present embodiment, not only the heat insulation box 51 is deformed immediately after production, but also the user stores stored items in the door shelf. It is also necessary to take into account the deformation when doing so.
そのため、仕切り壁55と内箱52とを一体で形成し、さらに仕切り壁55内の断熱材と断熱箱体51の断熱材54とを一体で発泡充填することにより、断熱箱体51の剛性が増すことで冷蔵室ドア56aへの振動伝播を抑制するだけでなく、冷蔵室ドア56aのドア棚への貯蔵品収容に対する強度耐久性を得ることができる。 Therefore, the partition wall 55 and the inner box 52 are integrally formed, and further, the heat insulating material in the partition wall 55 and the heat insulating material 54 of the heat insulating box body 51 are integrally foamed and filled, so that the rigidity of the heat insulating box body 51 is increased. By increasing, not only the vibration propagation to the refrigerator compartment door 56a can be suppressed, but also the durability of the storage of the refrigerator compartment door 56a in the door shelf can be obtained.
なお、内箱52を上内箱52aと下内箱52bとに分けたことで断熱箱体51の剛性低下が考えられるが、内箱それぞれと断熱材24とが密着していれば、剛性は低下しない。 In addition, although the inner box 52 is divided into the upper inner box 52a and the lower inner box 52b, the rigidity of the heat insulating box 51 can be reduced. If the inner box and the heat insulating material 24 are in close contact, the rigidity is It does not decline.
また、微小な隙間については、冷蔵室ドア56aの開閉機構やシール構造にも同様に、減らすよう配慮する必要がある。 In addition, it is necessary to consider to reduce the minute gap in the opening / closing mechanism and the seal structure of the refrigerator compartment door 56a as well.
まず、開閉機構については、回転式の他に引出し式のドアがあるが、一般的に引出し式は断熱箱体51と冷蔵室ドア56aとの間に微小な隙間を有することが多く、回転式であれば各ヒンジと冷蔵室ドア56aをほとんど隙間無く連結することができるので望ましい。 First, as for the opening / closing mechanism, there is a drawer type door in addition to the rotary type. Generally, the drawer type often has a minute gap between the heat insulating box 51 and the refrigerator compartment door 56a. If so, each hinge and the refrigerator compartment door 56a can be connected with almost no gap, which is desirable.
また、最上扉である冷蔵室ドア56aは一番使用頻度が高く、回転式の方が使い勝手が良い。 The refrigerator door 56a, which is the top door, is the most frequently used, and the rotary type is more convenient to use.
また、圧縮機80を断熱箱体51の左右方向において冷蔵室ドア56aのヒンジ側に配置したことにより、圧縮機80の振動が冷蔵室ドア56aのヒンジ側から冷蔵室ドア56aに伝播するので、冷蔵室ドア56aの振動が抑制される。 Moreover, since the compressor 80 is disposed on the hinge side of the refrigerator compartment door 56a in the left-right direction of the heat insulation box 51, the vibration of the compressor 80 propagates from the hinge side of the refrigerator compartment door 56a to the refrigerator compartment door 56a. The vibration of the refrigerator compartment door 56a is suppressed.
次にシール構造については製造バラツキや、冷却時の断熱箱体51や各貯蔵室ドアの収縮を吸収しながら、空間63を略密閉にシール保持する必要がある。 Next, with respect to the seal structure, it is necessary to seal and hold the space 63 in a substantially hermetic manner while absorbing manufacturing variations and shrinkage of the heat insulating box 51 and each storage chamber door during cooling.
そのため、ガスケット64は弾性部材である方が望ましく、加えて弾性部材とすること
で断熱箱体51から各貯蔵室ドアへの振動伝播抑制も同時に行なうことができる。
Therefore, it is desirable that the gasket 64 is an elastic member. In addition, by using an elastic member, vibration propagation from the heat insulating box 51 to each storage chamber door can be suppressed at the same time.
以上のように、本実施の形態においては、仕切り壁55と内箱52との継ぎ目が無くなり、部品同士の接触による微小な隙間を廃止できるので、圧縮機80の振動による断熱箱体51の振動発生を抑制できる。 As described above, in the present embodiment, there is no seam between the partition wall 55 and the inner box 52, and a minute gap due to contact between components can be eliminated, so that the vibration of the heat insulating box 51 due to the vibration of the compressor 80 can be eliminated. Generation can be suppressed.
また、断熱箱体51内の断熱材54を仕切り壁55と一体で形成することにより断熱箱体51の剛性が増し、圧縮機80の振動伝播を抑制する。 Further, by forming the heat insulating material 54 in the heat insulating box 51 integrally with the partition wall 55, the rigidity of the heat insulating box 51 is increased and vibration propagation of the compressor 80 is suppressed.
また、最上扉である冷蔵室ドア56aの固有振動数が圧縮機80を運転する最低周波数よりも低いので、インバータ制御によって圧縮機80の運転周波数を切替えたり、各ドア棚に貯蔵品を収容した場合でも冷蔵室ドア56aが共振することを防止できる。 Further, since the natural frequency of the refrigerator door 56a which is the uppermost door is lower than the lowest frequency at which the compressor 80 is operated, the operating frequency of the compressor 80 is switched by inverter control, or stored items are accommodated in each door shelf. Even in this case, the refrigerating room door 56a can be prevented from resonating.
また、冷蔵室ドア56aの重量を冷凍室ドア57aよりも重く構成したことで、容易に最上扉の固有振動数を低くできる。 Moreover, since the refrigerator compartment door 56a is heavier than the freezer compartment door 57a, the natural frequency of the uppermost door can be easily lowered.
また、冷蔵室ドア56aの右側一端の上下を上ヒンジ60と中ヒンジ61とで回動自在に開閉可能に構成し、下側の中ヒンジ61を仕切り壁55に固定したことにより、冷蔵室ドア56aを引出し自在に構成した場合に比べて断熱箱体51と冷蔵室ドア56aの連結部の隙間を狭く設定できるので、連結部での振動発生を抑制できる。 Further, the upper and lower ends of the right side of the refrigerator compartment door 56a are configured to be pivotably opened and closed by the upper hinge 60 and the middle hinge 61, and the lower middle hinge 61 is fixed to the partition wall 55, whereby the refrigerator compartment door is provided. Compared with the case where 56a can be pulled out freely, the gap between the connecting portion between the heat insulation box 51 and the refrigerator compartment door 56a can be set narrow, so that the occurrence of vibration at the connecting portion can be suppressed.
また、冷蔵室ドア56aと断熱箱体51との隙間を弾性部材であるガスケット64でシールしたことにより、断熱箱体51から冷蔵室ドア56aへの振動伝播を抑制できるので冷蔵室ドア56aの振動を抑制できる。 Further, since the gap between the refrigerator compartment door 56a and the heat insulation box 51 is sealed with the gasket 64, which is an elastic member, vibration propagation from the insulation box 51 to the refrigerator compartment door 56a can be suppressed, so that the vibration of the refrigerator compartment door 56a is suppressed. Can be suppressed.
(実施の形態2)
図4は本発明の実施の形態2における冷蔵庫の正面図、図5は同実施の形態の冷蔵庫の断面図、図6は同実施の形態の冷蔵庫の断熱箱体の分解斜視図を示すものである。
(Embodiment 2)
4 is a front view of the refrigerator according to Embodiment 2 of the present invention, FIG. 5 is a cross-sectional view of the refrigerator according to the embodiment, and FIG. 6 is an exploded perspective view of the heat insulation box of the refrigerator according to the embodiment. is there.
図4から図6において、冷蔵庫本体200の断熱箱体201は、樹脂にて形成された内箱202と鋼板などの金属磁性体にて形成された外箱203との間に断熱材204を充填した断熱壁から形成されるものであり、前面開口部201aを有し、上仕切り壁205と下仕切り壁206により、上部から冷蔵室207、野菜室208、冷凍室209と、複数の断熱区画された貯蔵室を形成している。 4 to 6, the heat insulating box 201 of the refrigerator main body 200 is filled with a heat insulating material 204 between an inner box 202 made of resin and an outer box 203 formed of a metal magnetic material such as a steel plate. The upper partition wall 205 and the lower partition wall 206 divide the refrigerator compartment 207, the vegetable compartment 208, and the freezer compartment 209 into a plurality of insulation compartments from above. Forming a storage room.
また、冷蔵室207と野菜室208とは冷蔵温度帯に、冷凍室209は冷凍温度帯にそれぞれ冷却保持される。 The refrigerator compartment 207 and the vegetable compartment 208 are cooled and held in the refrigerator temperature zone, and the freezer compartment 209 is kept in the refrigerator temperature zone.
内箱202は各貯蔵室内を個別に各貯蔵室の上下左右面と奥面とを一体で形成し、前面を開口した略箱形状であり、上から上内箱202a、中内箱202b、下内箱202cとから構成される。 The inner box 202 has a substantially box shape in which the upper, lower, left, and right surfaces and the rear surface of each storage room are integrally formed in the respective storage chambers, and the front surface is opened. The upper inner box 202a, the inner inner box 202b, the lower And an inner box 202c.
上仕切り壁205は上内箱202aの下面と、中内箱202bの上面と、上仕切り壁205の前面に備えられ、鋼板などの金属磁性体にて形成された上仕切り板205aとから構成される。 The upper partition wall 205 includes a lower surface of the upper inner box 202a, an upper surface of the inner inner box 202b, and an upper partition plate 205a formed on a front surface of the upper partition wall 205 and formed of a metal magnetic material such as a steel plate. The
また、下仕切り壁206は中内箱202bの下面と、下内箱202cの上面と、下仕切り壁206の前面に備えられ、鋼板などの金属磁性体にて形成された下仕切り板206aとから構成される。 Further, the lower partition wall 206 is provided on the lower surface of the inner inner box 202b, the upper surface of the lower inner box 202c, and the lower partition plate 206a formed on a front surface of the lower partition wall 206 and formed of a metal magnetic material such as a steel plate. Composed.
上仕切り壁205と下仕切り壁206との内部空間には、それぞれ断熱箱体201の断熱材204を一体で発泡充填している。 In the internal spaces of the upper partition wall 205 and the lower partition wall 206, the heat insulating material 204 of the heat insulating box 201 is integrally foam-filled.
上仕切り板205aと下仕切り板206aとは、それぞれ断熱箱体201の前後方向において外箱203の最前面と同位置に備えられ、前面開口部201aの一部を形成する。 The upper partition plate 205a and the lower partition plate 206a are respectively provided at the same position as the forefront surface of the outer box 203 in the front-rear direction of the heat insulation box 201, and form a part of the front opening 201a.
また、各貯蔵室にはそれぞれ全閉時に前面開口部201aを閉塞する冷蔵室右ドア207a、冷蔵室左ドア207b、野菜室ドア208a、冷凍室ドア209aを備える。 Each storage room also includes a refrigerator compartment right door 207a, a refrigerator compartment left door 207b, a vegetable compartment door 208a, and a freezer compartment door 209a that close the front opening 201a when fully closed.
冷蔵室右ドア207aと冷蔵室左ドア207bとは、断熱箱体201の高さ方向は同一に配置され、断熱箱体201の左右方向の中心より左側にて分割しているので冷凍室右ドア207aの方が大きく構成されている。 The refrigerator compartment right door 207a and the refrigerator compartment left door 207b are arranged in the same height direction of the heat insulation box 201 and are divided on the left side from the center of the heat insulation box 201 in the left-right direction. 207a is configured larger.
冷蔵室右ドア207a、野菜室ドア208a、冷凍室ドア209aは、それぞれの右側上下端を上から順に上右ヒンジ210と、中右ヒンジ211と、中ヒンジ212と、下ヒンジ213とで、冷蔵室左ドア207bは左側上下端を上左ヒンジ214と中左ヒンジ215とで断熱箱体201と個別に回動自在に連結される。 The refrigerator compartment right door 207a, the vegetable compartment door 208a, and the freezer compartment door 209a are refrigerated with the upper right hinge 210, the middle right hinge 211, the middle hinge 212, and the lower hinge 213 in order from the upper right and lower ends, respectively. The room left door 207b is connected to the heat insulation box 201 by the upper left hinge 214 and the middle left hinge 215 so that the left upper and lower ends are individually rotatable.
また、上右ヒンジ210、下ヒンジ213、上左ヒンジ214はそれぞれ断熱箱体201の上下端に、中右ヒンジ211と中左ヒンジ215とは上仕切り板205aに、中ヒンジ212下仕切り板206aにそれぞれ固着されている。 Further, the upper right hinge 210, the lower hinge 213, and the upper left hinge 214 are respectively provided at the upper and lower ends of the heat insulating box 201, the middle right hinge 211 and the middle left hinge 215 are provided on the upper partition plate 205a, and the middle hinge 212 lower partition plate 206a. It is fixed to each.
各貯蔵室ドアの断熱箱体201側の面は、全閉時に前面開口部201aとの間に5mm程度の空間216を有し、空間216は各貯蔵室ドアの断熱箱体201側の面の上下左右4辺に設けられたマグネットを有するガスケット217の磁力にて前面開口部201aにガスケット217を吸着させることで密着させることができ、各貯蔵室は略密閉にシールされる。 The surface of each storage room door on the side of the heat insulation box 201 has a space 216 of about 5 mm between the front opening 201a when fully closed, and the space 216 is a surface of the surface of the storage room door on the side of the heat insulation box 201. The gasket 217 can be brought into close contact with the front opening 201a by the magnetic force of the gasket 217 having magnets provided on the four sides of the top, bottom, left, and right sides, and each storage chamber is sealed substantially hermetically.
また、ガスケット217はゴムなどの軟質材で形成された中空の弾性部材であり、空間216の距離が多少変動しても、ガスケット217の伸縮とマグネットの吸着保持により、各貯蔵室がシール保持できるように構成される。 Further, the gasket 217 is a hollow elastic member formed of a soft material such as rubber. Even if the distance of the space 216 is slightly changed, each storage chamber can be sealed and held by the expansion and contraction of the gasket 217 and the magnets. Configured as follows.
冷蔵庫本体200を正面から見たときの面積は冷蔵室右ドア207aが一番広く、各貯蔵室ドアは内部に断熱材を充填した断熱壁であり、冷蔵室右ドア207aの断熱壁内部には各貯蔵室ドアの断熱材よりも比重が大きく、かつ熱伝導率が小さい真空断熱材207cを有し、貯蔵室ドアの中で冷蔵室右ドア207aが一番重たくなるように構成されている。 When the refrigerator main body 200 is viewed from the front, the refrigerator compartment right door 207a is the largest, and each storage compartment door is an insulation wall filled with a heat insulating material, and inside the insulation wall of the refrigerator compartment right door 207a. A vacuum heat insulating material 207c having a specific gravity larger than that of the heat insulating material of each storage room door and having a low thermal conductivity is provided, and the refrigerator right door 207a is configured to be the heaviest among the storage room doors.
冷蔵室右ドア207aの冷蔵室207側の面には貯蔵品を収容可能なドア棚を複数備え、上から順に、調味料など小物を収容する小物棚220と、飲料缶などを収容する飲料棚221と、ペットボトルなどの大物飲料を収容するボトル棚222とを、上下方向に適正な間隔を有して配置している。 The surface of the refrigerator compartment right door 207a on the refrigerator compartment 207 side is provided with a plurality of door shelves that can store stored items, and in order from the top, a accessory shelf 220 that contains accessories such as seasonings, and a beverage shelf that contains beverage cans and the like. 221 and a bottle shelf 222 that accommodates large drinks such as plastic bottles are arranged at an appropriate interval in the vertical direction.
なお、本実施の形態の各ドア棚は、実施の形態1の各ドア棚よりも各断熱箱体の左右方向において小さく構成されている。 In addition, each door shelf of this Embodiment is comprised smaller than the door shelf of Embodiment 1 in the left-right direction of each heat insulation box.
また、冷蔵室右ドア207aのドア棚を含む固有振動数は33Hzとしている。 Moreover, the natural frequency including the door shelf of the refrigerator compartment right door 207a is set to 33 Hz.
一方、他の貯蔵室ドアにはドア棚を備えず、各貯蔵室ドアの固有振動数は40〜45Hzとしている。 On the other hand, other storage room doors are not provided with door shelves, and the natural frequency of each storage room door is 40 to 45 Hz.
断熱箱体201は各貯蔵室を所定の温度に冷却保持する冷凍サイクル(図示せず)を有し、圧縮機230は、冷凍サイクルの一部を形成している。 The heat insulation box 201 has a refrigeration cycle (not shown) for cooling and holding each storage chamber at a predetermined temperature, and the compressor 230 forms a part of the refrigeration cycle.
この圧縮機230はピストンがシリンダ内を往復運動することで冷媒の圧縮を行う往復運動型圧縮機であり、圧縮機230および冷凍サイクルの冷媒として炭化水素系冷媒である、たとえばイソブタンを使用している。 The compressor 230 is a reciprocating compressor that compresses the refrigerant by reciprocating the piston in the cylinder. The compressor 230 and the refrigerant of the refrigeration cycle are hydrocarbon refrigerants, for example, using isobutane. Yes.
また、圧縮機230は冷蔵庫本体200の消費電力量を低減するために、制御部240にて圧縮機230の運転周波数を複数のレベルに切替える、インバータ制御にて運転される。 The compressor 230 is operated by inverter control in which the control unit 240 switches the operation frequency of the compressor 230 to a plurality of levels in order to reduce the power consumption of the refrigerator main body 200.
本実施の形態では、圧縮機230を運転する最低周波数を家庭用電源の周波数よりも低い35Hzとしている。 In the present embodiment, the lowest frequency for operating the compressor 230 is 35 Hz, which is lower than the frequency of the household power supply.
圧縮機230と制御部240とは、断熱箱体201の上部奥側の上凹部201bに設けられた機械室250に備えられ、かつ圧縮機230は断熱箱体201の左右方向において冷蔵室右ドア207a側に配置されている。 The compressor 230 and the control unit 240 are provided in a machine room 250 provided in the upper recessed portion 201b on the upper back side of the heat insulating box 201, and the compressor 230 is a right door in the refrigerator compartment in the left-right direction of the heat insulating box 201. It is arranged on the 207a side.
以上のように構成された冷蔵庫について、以下その動作、作用を説明する。 About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
まず、冷蔵庫本体200に家庭用電源を入力すると、圧縮機230の圧縮動作により吐出された高温高圧の冷媒が冷凍サイクル内を循環しながら、各貯蔵室を所定の設定温度帯に冷却保持する。 First, when a household power source is input to the refrigerator main body 200, the high-temperature and high-pressure refrigerant discharged by the compression operation of the compressor 230 circulates in the refrigeration cycle, and cools and holds each storage chamber at a predetermined set temperature range.
この時、制御部240は各貯蔵室の状況に応じて圧縮機230の運転周波数を最適値に複数のレベルで切替えながら、冷蔵庫本体200の消費電力量が低くなるように圧縮機230を運転する。 At this time, the control unit 240 operates the compressor 230 so that the power consumption of the refrigerator main body 200 is reduced while switching the operation frequency of the compressor 230 to an optimum value at a plurality of levels according to the situation of each storage room. .
例えば、最初に家庭用電源を入力した時や、貯蔵室内に一度に多くの貯蔵品を収容した時など、貯蔵室内温度が所定の温度より相当高い場合には圧縮機を最大周波数で運転し、それから徐々に貯蔵室温度が低くなってくると共に圧縮機230の運転周波数を低いレベルに切替え、最終的には最低の運転周波数である35Hzにて運転する。 For example, when the storage room temperature is considerably higher than a predetermined temperature, such as when the household power supply is first input or when many stored items are stored in the storage room at a time, the compressor is operated at the maximum frequency. Then, as the storage room temperature gradually decreases, the operation frequency of the compressor 230 is switched to a low level, and finally the operation is performed at 35 Hz which is the lowest operation frequency.
また、使用者は冷蔵室右ドア207aを開けて、各ドア棚に貯蔵品を自由に出し入れできる。 In addition, the user can open and close the right door 207a of the refrigerator compartment, and freely put in and out stored items in each door shelf.
この時、ドア棚に収容した貯蔵品の量に応じて、冷蔵室ドア207全体の固有振動数は低い方向へ連続的に変化するが、ドア棚に貯蔵品を収容しない状態の固有振動数が33Hzなので、冷蔵室ドア207全体の固有振動数が圧縮機230の最低周波数である35Hzになることはない。 At this time, the natural frequency of the entire refrigerator compartment door 207 continuously changes in a low direction according to the amount of stored items stored in the door shelf, but the natural frequency in a state where the stored items are not stored in the door shelf is Since it is 33 Hz, the natural frequency of the entire refrigerator compartment door 207 does not become 35 Hz which is the lowest frequency of the compressor 230.
また、他の貯蔵室ドアは冷蔵室右ドア207aより軽いので、冷蔵室右ドア207aよりも固有振動数が大きくなり、圧縮機の最低周波数35Hzよりも大きい40〜45Hzとしているが、他の貯蔵室ドアにはドア棚を備えていないので、他の貯蔵室ドア全体の固有振動数は変化せず、圧縮機230を40〜45Hzで運転しない限り、他の貯蔵室ドアの共振は発生しない。 Further, since the other storage room door is lighter than the refrigerating room right door 207a, the natural frequency is larger than that of the refrigerating room right door 207a, and 40 to 45 Hz, which is larger than the lowest frequency 35 Hz of the compressor. Since the room door is not provided with a door shelf, the natural frequency of the whole other storage room door does not change, and the resonance of the other storage room door does not occur unless the compressor 230 is operated at 40 to 45 Hz.
なお、他の貯蔵室ドアにもドア棚を設ける場合には、貯蔵品収容量が最大時の各貯蔵室ドアの固有振動数を測定して、その周波数から各貯蔵室ドアに貯蔵しないときの固有振動
数である40〜45Hzの範囲内で圧縮機230を運転しなければ共振しない。
When installing door shelves in other storage room doors, measure the natural frequency of each storage room door when the storage capacity is maximum, and store it in each storage room door from the frequency. Unless the compressor 230 is operated within the natural frequency range of 40 to 45 Hz, resonance does not occur.
本実施の形態では、圧縮機230の最低時の最低周波数を35Hzとしたが、圧縮機230の運転周波数を低くした方が冷蔵庫本体200の消費電力量は低減できる。 In the present embodiment, the lowest minimum frequency of the compressor 230 is 35 Hz. However, the power consumption of the refrigerator main body 200 can be reduced by lowering the operating frequency of the compressor 230.
そのため、冷蔵室右ドア207aの重量のバラツキ範囲を狭くすることができれば最低周波数を34Hzにしても良く、さらに冷蔵室右ドア207aを大きくするなど重量を増すことができれば、それに伴って最低周波数を低くできる。 Therefore, the minimum frequency may be set to 34 Hz if the variation range of the weight of the refrigerator compartment right door 207a can be narrowed, and if the weight can be increased by increasing the refrigerator compartment right door 207a, the minimum frequency can be reduced accordingly. Can be lowered.
なお、本実施の形態では真空断熱材207cにて冷蔵室右ドア207aの重量を増して冷蔵室右ドア207aの固有振動数を低くしている。 In the present embodiment, the vacuum heat insulating material 207c increases the weight of the refrigerator compartment right door 207a to lower the natural frequency of the refrigerator compartment right door 207a.
しかも、冷蔵室右ドア207aの面積を一番広く構成したので、断熱材よりも熱伝導率が小さい真空断熱材207cを用いた際に、他の貯蔵室ドアに適用した場合に比べて、最も断熱箱体201内への熱侵入量を低減できる。 Moreover, since the area of the refrigerator door right door 207a is configured to be the largest, when using the vacuum heat insulating material 207c having a smaller thermal conductivity than the heat insulating material, compared to the case where it is applied to other storage room doors, The amount of heat penetration into the heat insulating box 201 can be reduced.
断熱箱体201内への熱侵入量を低減すると、圧縮機230を最低周波数で運転する時間比率が増加するので、冷蔵室右ドア207aの固有振動数を低くすることは、冷蔵庫本体200の消費電力量を低減することに対して非常に有効である。 If the amount of heat intrusion into the heat insulating box 201 is reduced, the time ratio of operating the compressor 230 at the lowest frequency increases. Therefore, reducing the natural frequency of the refrigerator compartment right door 207a is a consumption of the refrigerator main body 200. This is very effective for reducing the amount of electric power.
また、上仕切り壁205と下仕切り壁206とを内箱202と一体で形成したので、上仕切り壁205、下仕切り壁206と断熱箱体201との間の隙間を完全に廃止している。 Further, since the upper partition wall 205 and the lower partition wall 206 are formed integrally with the inner box 202, the gap between the upper partition wall 205 and the lower partition wall 206 and the heat insulating box 201 is completely eliminated.
隙間があると、圧縮機230などから断熱箱体201が加震された時に、微小な隙間部で振動が発生するとビビリ音が発生することがあるが、本構造においてはその可能性は無い。 If there is a gap, chatter noise may be generated when vibration is generated in a minute gap when the heat insulation box 201 is vibrated from the compressor 230 or the like, but this structure does not have such a possibility.
また、隙間があるということは断熱箱体201が変形しやすくなるということでもある。
特に本実施の形態のように最上の配置された冷蔵室右ドア207aにドア棚を備えた場合には、断熱箱体201の生産直後の変形だけでなく、使用者がドア棚に貯蔵品を収容した際の変形も考慮する必要がある。
Further, the presence of a gap also means that the heat insulating box 201 is easily deformed.
In particular, when a door shelf is provided on the rightmost refrigerated compartment right door 207a as in the present embodiment, not only the deformation of the heat insulation box 201 immediately after production but also the user can store the stored items on the door shelf. It is also necessary to consider the deformation when housed.
そのため、最上に配置された上仕切り壁205と内箱202とを一体で形成し、さらに上仕切り壁205内の断熱材と断熱箱体201の断熱材204とを一体で発泡充填することにより、断熱箱体201の剛性が増すことで冷蔵室右ドア207aへの振動伝播を抑制するだけでなく、冷蔵室右ドア207aのドア棚への貯蔵品収容に対する強度耐久性を得ることができる。 Therefore, the upper partition wall 205 and the inner box 202 disposed at the top are integrally formed, and further, the heat insulating material in the upper partition wall 205 and the heat insulating material 204 of the heat insulating box 201 are integrally foamed and filled, Increasing the rigidity of the heat insulating box 201 not only suppresses the propagation of vibrations to the right door 207a of the refrigerating room, but also provides strength durability against storage of stored items in the door shelf of the right door 207a of the refrigerating room.
なお、内箱202を上内箱202aと中内箱202bと下内箱202cとに分けたことで断熱箱体201の剛性低下が考えられるが、内箱それぞれと断熱材204とが密着していれば、剛性は低下しない。 Although the inner box 202 is divided into the upper inner box 202a, the middle inner box 202b, and the lower inner box 202c, the rigidity of the heat insulating box 201 can be reduced. However, the inner box and the heat insulating material 204 are in close contact with each other. If so, the rigidity does not decrease.
また、振動や剛性のレベルが許容できる場合には、下仕切り壁206を内箱202と別部材で形成しても良い。 Further, when the level of vibration or rigidity is acceptable, the lower partition wall 206 may be formed of a member separate from the inner box 202.
その場合には内箱の数が減るので、工場生産性が向上したり、断熱材204の発泡充填時に仕切り壁部から漏れる不良を低減することができる。 In that case, since the number of inner boxes is reduced, factory productivity can be improved, and defects leaking from the partition wall when foaming and filling the heat insulating material 204 can be reduced.
また、微小な隙間については冷蔵室右ドア207aの開閉機構やシール構造も同様に、減らすよう配慮する必要がある。 In addition, regarding the minute gap, it is necessary to consider to reduce the opening / closing mechanism and the seal structure of the refrigerator compartment right door 207a as well.
まず、開閉機構については、回転式の他に引出し式のドアがあるが、一般的に引出し式は断熱箱体201と冷蔵室右ドア207aとの間に微小な隙間を有することが多く、回転式であれば各ヒンジと冷蔵室右ドア207aをほとんど隙間無く連結することができるので望ましい。 First, as for the opening and closing mechanism, there is a drawer type door in addition to the rotary type. Generally, the drawer type often has a minute gap between the heat insulating box 201 and the refrigerator door right door 207a. If it is a type | formula, since each hinge and the refrigerator compartment right door 207a can be connected almost without gap, it is desirable.
また、最上扉である冷蔵室右ドア207a,冷蔵室左ドア207bは使用頻度が高く、回転式の方が使い勝手が良い。 Further, the refrigerator door right door 207a and the refrigerator door left door 207b, which are the top doors, are frequently used, and the rotary type is easier to use.
一方、野菜室ドア208a、冷凍室ドア209aは振動の問題が無い場合には、断熱箱体201の大きさによっては、引出し式の方が使い勝手が良い場合がある。 On the other hand, when the vegetable compartment door 208a and the freezer compartment door 209a are free from vibration problems, the drawer type may be easier to use depending on the size of the heat insulating box 201.
また、圧縮機230を断熱箱体201の左右方向において冷蔵室右ドア207a側に配置したことにより、圧縮機230の振動が冷蔵室右ドア207a側に優先的に伝播するので、冷蔵室右ドア207aよりも軽い冷蔵室左ドア207bの振動が抑制される。 In addition, since the compressor 230 is disposed on the right side of the refrigerator compartment right door 207a in the left-right direction of the heat insulating box 201, the vibration of the compressor 230 is preferentially propagated to the right side of the refrigerator compartment right door 207a. The vibration of the refrigerator compartment left door 207b, which is lighter than 207a, is suppressed.
次にシール構造については製造バラツキや、冷却時の断熱箱体201や各貯蔵室ドアの収縮を吸収しながら、空間216を略密閉にシール保持する必要がある。 Next, with respect to the seal structure, it is necessary to seal and hold the space 216 in a substantially hermetic manner while absorbing manufacturing variations and the shrinkage of the heat insulating box 201 and each storage chamber door during cooling.
そのためガスケット217は弾性部材である方が望ましく、加えて弾性部材とすることで断熱箱体201から各貯蔵室ドアへの振動伝播抑制も同時に行なうことができる。 Therefore, it is desirable that the gasket 217 is an elastic member. In addition, by using an elastic member, vibration propagation from the heat insulating box 201 to each storage chamber door can be suppressed at the same time.
また、圧縮機230を断熱箱体201の上部奥側に配置したので、実施の形態1に比べて野菜室208の奥行きを広く設けている。 In addition, since the compressor 230 is disposed on the upper back side of the heat insulating box 201, the depth of the vegetable compartment 208 is wider than that of the first embodiment.
一方で冷蔵室207の上部奥側の奥行きが狭くなるが、本部は使用者の手が届きにくく使い勝手の悪い空間なので、本部に圧縮機230を備えても使用者の使い勝手は悪化しない。 On the other hand, the depth on the upper back side of the refrigerating room 207 is narrowed, but since the headquarters is a space that is difficult for the user to reach and is not easy to use, even if a compressor 230 is provided in the headquarters, the usability of the user does not deteriorate.
以上のように、本実施の形態においては、上仕切り壁205と内箱202との継ぎ目が無くなり、部品同士の接触による微小な隙間を廃止できるので、圧縮機230の振動による断熱箱体201の振動発生を抑制できる。 As described above, in the present embodiment, there is no seam between the upper partition wall 205 and the inner box 202, and a minute gap due to contact between parts can be eliminated. Vibration generation can be suppressed.
また、断熱箱体201内の断熱材204を上仕切り壁205と一体で形成することにより断熱箱体201の剛性が増し、圧縮機230の振動伝播を抑制する。 Further, by forming the heat insulating material 204 in the heat insulating box 201 integrally with the upper partition wall 205, the rigidity of the heat insulating box 201 is increased and vibration propagation of the compressor 230 is suppressed.
また、最上扉である冷蔵室右ドア207aの固有振動数が圧縮機230を運転する最低周波数よりも低いので、インバータ制御によって圧縮機230の運転周波数を切替えたり、各ドア棚に貯蔵品を収容した場合でも冷蔵室右ドア207aが共振することを防止できる。 In addition, since the natural frequency of the refrigerator door right door 207a, which is the uppermost door, is lower than the lowest frequency at which the compressor 230 is operated, the operating frequency of the compressor 230 is switched by inverter control, and stored items are stored in each door shelf. Even in this case, the refrigerating room right door 207a can be prevented from resonating.
また、断熱箱体201の上部奥側に圧縮機230を備えたことにより、下部の貯蔵室である野菜室208の奥行きを広く設けることができる。 Moreover, by providing the compressor 230 in the upper back side of the heat insulation box 201, the depth of the vegetable compartment 208 which is a lower storage room can be provided widely.
また、冷蔵室右ドア207aを他の貯蔵室ドアよりも重く構成したことで、容易に最上扉の固有振動数を低くできる。 In addition, since the refrigerator compartment right door 207a is configured to be heavier than other storage compartment doors, the natural frequency of the top door can be easily lowered.
また、冷蔵室右ドア207aの右側一端の上下を上右ヒンジ210と中右ヒンジ211
とで回動自在に開閉可能に構成し、下側の中右ヒンジ211を上仕切り壁205に固定したことにより、冷蔵室右ドア207aを引出し自在に構成した場合に比べて断熱箱体201と冷蔵室右ドア207aの連結部の隙間を狭く設定でき、連結部での振動発生を抑制できる。
Further, the upper right hinge 210 and the middle right hinge 211 are arranged at the upper and lower ends of the right end of the refrigerator door 207a.
And the lower middle right hinge 211 is fixed to the upper partition wall 205, so that the refrigerator compartment right door 207a can be pulled out as compared with the heat insulating box 201. The gap of the connecting part of the refrigerator door right door 207a can be set narrow, and the occurrence of vibration at the connecting part can be suppressed.
また、冷蔵室右ドア207aと断熱箱体201との隙間を弾性部材であるガスケット217でシールしたことにより、断熱箱体201から冷蔵室右ドア207aへの振動伝播を抑制できるので冷蔵室右ドア207aの振動を抑制できる。 Further, since the gap between the refrigerator compartment right door 207a and the heat insulation box 201 is sealed with the gasket 217, which is an elastic member, vibration propagation from the insulation box 201 to the refrigerator compartment right door 207a can be suppressed. The vibration of 207a can be suppressed.
また、最上扉である冷蔵室ドアを断熱箱体201の左右方向に冷蔵室右ドア207aと冷蔵室左ドア207bとに分割し、重たい方の冷蔵室右ドア207a側に圧縮機230を配置したことにより、圧縮機230の振動が振動しにくい重たい方の冷蔵室右ドア207aに優先的に伝播するので、軽い方の冷蔵室左ドア207bの振動を抑制することができる。 In addition, the refrigerator door, which is the top door, is divided into a refrigerator right door 207a and a refrigerator left door 207b in the left-right direction of the heat insulation box 201, and a compressor 230 is arranged on the heavy refrigerator door right door 207a side. As a result, the vibration of the compressor 230 is preferentially propagated to the heavier refrigeration room right door 207a that is less likely to vibrate, so that the vibration of the lighter refrigeration room left door 207b can be suppressed.
以上のように、本発明にかかる冷蔵庫は、防振部材などを追加せずに貯蔵室ドアの振動を低減させることができるので、その他の保温室の用途にも適用できる。 As described above, since the refrigerator according to the present invention can reduce the vibration of the storage room door without adding a vibration isolating member or the like, the refrigerator can be applied to other uses for a greenhouse.
50,200 冷蔵庫本体
51,201 断熱箱体
51a,201a 前面開口部
51b 下凹部
52,202 内箱
52a,202a 上内箱
52b,202c 下内箱
53,203 外箱
54,204 断熱材
55 仕切り壁
55a 仕切り板
56,207 冷蔵室
56a 冷蔵室ドア
57,209 冷凍室
57a,209a 冷凍室ドア
60 上ヒンジ
61,212 中ヒンジ
62,213 下ヒンジ
63,216 空間
64,217 ガスケット
70,220 小物棚
71,221 飲料棚
72,222 ボトル棚
80,230 圧縮器
90,240 制御部
100,250 機械室
201b 上凹部
202b 中内箱
205 上仕切り壁
205a 上仕切り板
206 下仕切り壁
206a 下仕切り板
207a 冷蔵室右ドア
207b 冷蔵室左ドア
207c 真空断熱材
208 野菜室
208a 野菜室ドア
210 上右ヒンジ
211 中右ヒンジ
214 上左ヒンジ
215 中左ヒンジ
50, 200 Refrigerator main body 51, 201 Heat insulation box 51a, 201a Front opening 51b Lower recess 52, 202 Inner box 52a, 202a Upper inner box 52b, 202c Lower inner box 53, 203 Outer box 54, 204 Heat insulation 55 Partition wall 55a Partition plate 56,207 Cold room 56a Cold room door 57,209 Freezer room 57a, 209a Freezer room door 60 Upper hinge 61,212 Middle hinge 62,213 Lower hinge 63,216 Space 64,217 Gasket 70,220 Small shelf 71 , 221 Beverage shelf 72, 222 Bottle shelf 80, 230 Compressor 90, 240 Control unit 100, 250 Machine room 201b Upper recess 202b Middle inner box 205 Upper partition wall 205a Upper partition plate 206 Lower partition wall 206a Lower partition plate 207a Refrigeration chamber Right door 207b Cold room left door 20 c vacuum heat insulating material 208 vegetable compartment 208a vegetable compartment door 210 on the right hinge 211 in the right hinge 214 on the left in the hinge 215 left hinge
Claims (6)
前記断熱箱体は外箱と内箱との間に断熱材を発泡充填したものであり、少なくとも最上に配置された最上仕切り壁と前記内箱とを一体で形成し、前記最上仕切り壁内の断熱材と、前記断熱箱体内の断熱材とを一体で発泡充填すると共に、前記貯蔵室の中で最上に配置された貯蔵室を閉塞する最上扉の固有振動数が圧縮機を運転する最低周波数よりも低いことを特徴とする冷蔵庫。 In a refrigerator comprising a heat insulating box provided with a plurality of heat-insulated compartments in the vertical direction by a partition wall, and a door that respectively closes the storage compartments,
The heat insulating box body is a foam filled with a heat insulating material between the outer box and the inner box, and at least the uppermost partition wall disposed at the top and the inner box are integrally formed, The lowest frequency at which the natural frequency of the uppermost door that closes the storage chamber disposed at the top of the storage chamber and the compressor is operated is integrally foamed and filled with the heat insulating material and the heat insulating material in the heat insulating box. A refrigerator characterized by being lower than.
Priority Applications (4)
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JP2011160575A JP5899407B2 (en) | 2011-07-22 | 2011-07-22 | refrigerator |
CN201280036346.6A CN103717987B (en) | 2011-07-22 | 2012-06-26 | Freezer |
EP12816996.8A EP2735827B1 (en) | 2011-07-22 | 2012-06-26 | Refrigerator |
PCT/JP2012/004123 WO2013014857A1 (en) | 2011-07-22 | 2012-06-26 | Refrigerator |
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JP2011160575A JP5899407B2 (en) | 2011-07-22 | 2011-07-22 | refrigerator |
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JP2013024492A true JP2013024492A (en) | 2013-02-04 |
JP5899407B2 JP5899407B2 (en) | 2016-04-06 |
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EP (1) | EP2735827B1 (en) |
JP (1) | JP5899407B2 (en) |
CN (1) | CN103717987B (en) |
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JP2015135227A (en) * | 2013-12-20 | 2015-07-27 | パナソニックIpマネジメント株式会社 | refrigerator |
Families Citing this family (4)
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US9841210B2 (en) * | 2014-04-22 | 2017-12-12 | Trane International Inc. | Sound level control in an HVAC system |
CN104359283B (en) * | 2014-11-14 | 2017-01-18 | 合肥美的电冰箱有限公司 | Control method and device for air cooling refrigerator and air cooling refrigerator |
JP6516296B2 (en) * | 2016-03-08 | 2019-05-22 | 日立グローバルライフソリューションズ株式会社 | refrigerator |
US11391506B2 (en) * | 2016-08-18 | 2022-07-19 | Whirlpool Corporation | Machine compartment for a vacuum insulated structure |
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US7150604B2 (en) * | 2004-03-15 | 2006-12-19 | Carrier Corporation | Electric box for compressor assembly |
TW200641315A (en) * | 2005-04-01 | 2006-12-01 | Matsushita Electric Ind Co Ltd | Refrigerator |
US7895003B2 (en) * | 2007-10-05 | 2011-02-22 | Emerson Climate Technologies, Inc. | Vibration protection in a variable speed compressor |
CN201187928Y (en) * | 2008-03-21 | 2009-01-28 | 河南新飞电器有限公司 | Refrigerator refrigerated by automatic transmission adjustment |
-
2011
- 2011-07-22 JP JP2011160575A patent/JP5899407B2/en active Active
-
2012
- 2012-06-26 EP EP12816996.8A patent/EP2735827B1/en not_active Not-in-force
- 2012-06-26 CN CN201280036346.6A patent/CN103717987B/en active Active
- 2012-06-26 WO PCT/JP2012/004123 patent/WO2013014857A1/en active Application Filing
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JPH11311478A (en) * | 1998-04-28 | 1999-11-09 | Toshiba Corp | Partition wall of refrigerator |
JP2001099552A (en) * | 1999-09-29 | 2001-04-13 | Sanyo Electric Co Ltd | Cooler/refrigerator |
JP2003014357A (en) * | 2001-06-27 | 2003-01-15 | Mitsubishi Electric Corp | Refrigerator |
JP2005344961A (en) * | 2004-06-01 | 2005-12-15 | Matsushita Electric Ind Co Ltd | Refrigerator comprising door device |
JP2006084091A (en) * | 2004-09-15 | 2006-03-30 | Matsushita Electric Ind Co Ltd | Refrigerator |
JP2006078174A (en) * | 2005-10-24 | 2006-03-23 | Hitachi Ltd | Refrigerator |
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JP2015135227A (en) * | 2013-12-20 | 2015-07-27 | パナソニックIpマネジメント株式会社 | refrigerator |
Also Published As
Publication number | Publication date |
---|---|
CN103717987A (en) | 2014-04-09 |
WO2013014857A1 (en) | 2013-01-31 |
EP2735827A4 (en) | 2015-09-02 |
CN103717987B (en) | 2015-11-25 |
JP5899407B2 (en) | 2016-04-06 |
EP2735827A1 (en) | 2014-05-28 |
EP2735827B1 (en) | 2019-05-15 |
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