JP5899406B2 - refrigerator - Google Patents
refrigerator Download PDFInfo
- Publication number
- JP5899406B2 JP5899406B2 JP2011160572A JP2011160572A JP5899406B2 JP 5899406 B2 JP5899406 B2 JP 5899406B2 JP 2011160572 A JP2011160572 A JP 2011160572A JP 2011160572 A JP2011160572 A JP 2011160572A JP 5899406 B2 JP5899406 B2 JP 5899406B2
- Authority
- JP
- Japan
- Prior art keywords
- machine room
- compressor
- refrigerator
- heat insulating
- control unit
- 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.)
- Active
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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- 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
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/12—Inflammable refrigerants
-
- 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
Landscapes
- 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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Refrigerator Housings (AREA)
Description
本発明は冷蔵庫の断熱箱体の構造に関するものである。 The present invention relates to the structure of a heat insulating box of a refrigerator.
従来、冷蔵庫の断熱箱体の背面部の上下方向の中間部に制御回路基板などの基板収容部を配置したものがある。（例えば、特許文献１参照）
図６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。
図６に示すように、冷蔵庫１の断熱箱体２は、鋼板製の外箱３と樹脂製の内箱４との間に断熱材５を発泡充填して形成される。また、断熱箱体２の奥側下部には断熱箱体２の底面部の一部を左右方向全体に切り欠いて機械室６を形成し、機械室６には冷凍サイクルの一部を形成する圧縮機７などを備える。
2. Description of the Related Art Conventionally, there is a type in which a board accommodating portion such as a control circuit board is arranged at an intermediate portion in a vertical direction of a back surface portion of a heat insulating box of a refrigerator. (For example, see Patent Document 1)
FIG. 6 shows a conventional refrigerator described in the publication.
As shown in FIG. 6, the heat insulating box 2 of the refrigerator 1 is formed by foaming and filling a heat insulating material 5 between a steel plate outer box 3 and a resin inner box 4. In addition, a machine room 6 is formed in the lower part on the back side of the heat insulation box 2 by cutting out a part of the bottom surface of the heat insulation box 2 in the entire left and right direction, and a part of the refrigeration cycle is formed in the machine room 6. A compressor 7 is provided.
また、断熱箱体２は仕切り壁８などによって貯蔵室が区分され、最上部に冷蔵室９、冷蔵室９の下に野菜室１０、野菜室１０の下に製氷室１１と切替室１２とが左右並列に配置され、最下部に冷凍室１３を有する。 The heat insulation box 2 is divided into storage rooms by a partition wall 8 or the like. A refrigeration room 9 at the top, a vegetable room 10 under the refrigeration room 9, an ice making room 11 and a switching room 12 under the vegetable room 10 are provided. It is arrange | positioned in parallel with right and left, and has the freezer compartment 13 in the lowest part.
冷蔵室９と野菜室１０の保存設定温度は冷蔵温度帯に設定され、製氷室１１と冷凍室１３の保存設定温度は冷凍温度帯に設定されている。なお、切替室１２は冷蔵温度帯から冷凍温度帯までの複数の保存設定温度のうちの一つの温度帯を選択できる。 The storage set temperature of the refrigerator compartment 9 and the vegetable compartment 10 is set to the refrigeration temperature zone, and the storage preset temperature of the ice making chamber 11 and the freezer compartment 13 is set to the freezer temperature zone. Note that the switching chamber 12 can select one temperature zone from among a plurality of storage set temperatures from the refrigeration temperature zone to the freezing temperature zone.
また、野菜室１０の背面部には発泡断熱材５を介して断熱箱体２の一部を凹めて形成された基板収容部１４を配置している。 Moreover, the board | substrate accommodating part 14 formed by denting a part of heat insulation box 2 via the foam heat insulating material 5 is arrange | positioned in the back part of the vegetable compartment 10. As shown in FIG.
基板収容部１４には圧縮機７などを電気的に制御する制御回路基板１５を備える。 The board accommodating portion 14 includes a control circuit board 15 that electrically controls the compressor 7 and the like.
しかしながら、前記従来の構成では、断熱箱体２の断熱性能を向上させるため断熱箱体２の背面部に発泡断熱材５より熱伝導率の小さい真空断熱パネルを配置する場合に、基板収容部１４により真空断熱パネルを上下に分割するか、真空断熱パネルの基板収容部１４と対向する部分に貫通穴を設ける必要があるため、断熱性能の向上程度が小さくなるという課題を有していた。 However, in the conventional configuration, when a vacuum heat insulation panel having a lower thermal conductivity than the foam heat insulating material 5 is disposed on the back surface of the heat insulation box 2 in order to improve the heat insulation performance of the heat insulation box 2, the substrate housing portion 14. Therefore, it is necessary to divide the vacuum heat insulating panel into upper and lower parts or to provide a through hole in a portion of the vacuum heat insulating panel that faces the substrate housing portion 14, so that the degree of improvement in heat insulating performance is reduced.
また、基板収容部１４を断熱箱体２の最上部に配置することも考えられる。その場合、真空断熱パネルを分割する必要はないが、例えば更なる消費電力量低減のために圧縮機７として直流電力を必要とするインバータ圧縮機を用いると、圧縮機７と制御回路基板１５との距離が離れることで電磁妨害を受けやすくなり、別途ＥＭＣ対策が必要になったり通電時のロス増大などの電磁的課題が生じる可能性がある。 It is also conceivable to arrange the substrate housing portion 14 at the top of the heat insulation box 2. In that case, it is not necessary to divide the vacuum insulation panel, but for example, if an inverter compressor that requires DC power is used as the compressor 7 to further reduce power consumption, the compressor 7 and the control circuit board 15 If the distance is increased, electromagnetic interference is likely to occur, and there is a possibility that a separate EMC measure is required or electromagnetic problems such as increased loss during energization may occur.
また、外箱３を大きくしたり、内箱４を小さくして断熱壁を厚くして消費電力量を低減することも可能だが、材料費や金型費が増大してしまう。 Although the outer box 3 can be enlarged or the inner box 4 can be made smaller to increase the thickness of the heat insulating wall to reduce the power consumption, the material cost and the mold cost are increased.
また、高温となる圧縮機７と冷凍室１３とが対向することにより、機械室６から冷凍室
１３内への熱侵入量が多いという課題も有していた。
Further, since the compressor 7 and the freezer compartment 13 that are at high temperatures face each other, there is a problem that the amount of heat entering from the machine room 6 into the freezer compartment 13 is large.
本発明は、前記従来の課題を解決するもので、新たな課題対策や投資を行うことなく、消費電力量を低減することができる冷蔵庫を提供することを目的とする。 This invention solves the said conventional subject, and it aims at providing the refrigerator which can reduce power consumption, without taking a new subject countermeasure and investment.
前記従来の課題を解決するために、本発明の冷蔵庫は、冷蔵庫本体は断熱壁によって複
数の貯蔵室が形成された断熱箱体と、前記断熱箱体背面側に配置された機械室と、少なくとも直流電力を必要とする圧縮機を有する冷凍サイクルと、前記圧縮機の運転を電気制御する制御部とを有し、前記圧縮機と前記制御部とを前記機械室内に配置し、前記機械室は前記断熱壁を介して前記貯蔵室と対向し、前記機械室と対向する前記貯蔵室の保存設定温度を冷蔵温度帯としたもので、前記機械室の少なくとも背面に機械室カバーを備え、前記機械室カバーは前記機械室の内外を連通する通気口を有し、前記通気口は少なくとも制御部背面側においては前記機械室カバーの下部に設けられ、かつ圧縮機背面側においては前記機械室カバーの上部に設け、制御部背面側の通気口と圧縮機背面側の通気口は前記機械室の左右両端に離間して配置したものである。
In order to solve the above-mentioned conventional problems, the refrigerator of the present invention has a refrigerator body that is insulated by a heat insulating wall.
A heat insulating box having a number of storage chambers, a machine room arranged on the back side of the heat insulating box, a refrigeration cycle having a compressor that requires at least DC power, and electric control of the operation of the compressor A control unit configured to dispose the compressor and the control unit in the machine room, the machine room facing the storage room via the heat insulating wall, and facing the machine room. The storage set temperature is a refrigeration temperature zone, and a machine room cover is provided on at least the back surface of the machine room, the machine room cover has a vent hole communicating with the inside and outside of the machine room, and the vent hole is at least On the back side of the control unit, it is provided at the lower part of the machine room cover, and on the back side of the compressor, it is provided at the upper part of the machine room cover. Separated from the left and right ends of the chamber Those were.
これによって、断熱箱体の背面部を広範囲に同一面にて形成することが可能となり、背面部に真空断熱パネルを配置する場合に、真空断熱パネルの面積を一体に広く配置することが可能となる。 This makes it possible to form the back surface of the heat insulation box in a wide area on the same surface, and when the vacuum heat insulation panel is arranged on the back surface, the area of the vacuum heat insulation panel can be widely arranged integrally. Become.
また、圧縮機と貯蔵室との温度差が小さくなるので貯蔵室内への熱侵入量が少なくなる。 In addition, since the temperature difference between the compressor and the storage chamber is reduced, the amount of heat intrusion into the storage chamber is reduced.
また、機械室内に圧縮機と制御部とを配置しているため、圧縮機を直流電力を必要とするインバータ圧縮機としても、電磁妨害を受けたり通電時のロスが増大することも無い。 Further, since the compressor and the control unit are arranged in the machine room, even if the compressor is an inverter compressor that requires DC power, it does not receive electromagnetic interference or increase loss during energization.
更に、消費電力量に応じて真空断熱パネルを追加廃止したり、圧縮機を交流電力にて駆動する仕様に変更することができるので、複数の性能や容量の異なる機種における断熱箱体にも対応することができる。 Furthermore, depending on the amount of power consumed, vacuum insulation panels can be eliminated or changed to specifications that drive the compressor with AC power. can do.
本発明の冷蔵庫は金型投資や課題対策を行なうことなく、断熱箱体の断熱性能や冷蔵庫本体の消費電力量を大幅に変更させることができる。 The refrigerator of the present invention can greatly change the heat insulation performance of the heat insulation box and the power consumption of the refrigerator main body without performing mold investment and countermeasures.
第１の発明は、冷蔵庫本体は断熱壁によって複数の貯蔵室が形成された断熱箱体と、前記断熱箱体背面側に配置された機械室と、少なくとも直流電力を必要とする圧縮機を有する冷凍サイクルと、前記圧縮機の運転を電気制御する制御部とを有し、前記圧縮機と前記制御部とを前記機械室内に配置し、前記機械室は前記断熱壁を介して前記貯蔵室と対向し、前記機械室と対向する前記貯蔵室の保存設定温度を冷蔵温度帯としたもので、前記機械室の少なくとも背面に機械室カバーを備え、前記機械室カバーは前記機械室の内外を連通する通気口を有し、前記通気口は少なくとも制御部背面側においては前記機械室カバーの下部に設けられ、かつ圧縮機背面側においては前記機械室カバーの上部に設け、制御部背面側の通気口と圧縮機背面側の通気口は前記機械室の左右両端に離間して配置したものである。 1st invention has a heat insulation box with which the refrigerator main body formed the some storage chamber with the heat insulation wall, the machine room arrange | positioned at the said heat insulation box back side, and the compressor which requires DC power at least. A refrigeration cycle; and a control unit that electrically controls operation of the compressor, the compressor and the control unit are arranged in the machine room, and the machine room is connected to the storage room via the heat insulating wall. The storage set temperature of the storage room facing the machine room is a refrigeration temperature zone, and a machine room cover is provided at least on the back of the machine room, and the machine room cover communicates the inside and outside of the machine room. The vent is provided at the bottom of the machine room cover at least on the back side of the control unit, and is provided at the top of the machine room cover on the back side of the compressor. The mouth and the back side of the compressor Kiguchi are those disposed at a distance from each other in the right and left ends of the machine room.
また、圧縮機と貯蔵室との温度差が小さくなるので貯蔵室内への熱侵入量が少なくなり、更に冷蔵庫の消費電力量を低減することができる。 Moreover, since the temperature difference between the compressor and the storage room is reduced, the amount of heat entering the storage room is reduced, and the power consumption of the refrigerator can be further reduced.
また、機械室内に圧縮機と制御部とを配置しているため、圧縮機を直流電力を必要とするインバータ圧縮機としても、電磁妨害を受けたり通電時のロスが増大することも無いので、新たに電磁課題対策を行なう必要なくインバータ圧縮機を使用することで冷蔵庫の消
費電力量を低減することができる。
In addition, since the compressor and the control unit are arranged in the machine room, even if the compressor is an inverter compressor that requires DC power, there is no electromagnetic interference or loss during energization. The power consumption of the refrigerator can be reduced by using the inverter compressor without newly taking countermeasures against electromagnetic problems.
更に、消費電力量に応じて真空断熱パネルを追加廃止したり、圧縮機を交流電力にて駆動する仕様に変更すればよいので、金型投資をして断熱箱体を新規開発する必要も無い。 Furthermore, it is only necessary to abolish the vacuum insulation panel according to the amount of power consumption, or to change the specifications to drive the compressor with AC power, so there is no need to invest in molds and develop a new insulation box .
また、一般的には制御部を機械室とは異なる部位の断熱箱体の背面部に備えていたが、本発明によって制御部を配置するためのスペースを機械室と兼用することが可能となるので、冷蔵庫の背面部の同一面の面積が増える。よって、背面部に真空断熱パネルを配置する場合に、真空断熱パネルの面積を一体に広く配置することが可能となるので、断熱箱体の断熱性能が大幅に向上し、冷蔵庫の消費電力量を低減することができる。 In general, the control unit is provided on the back surface of the heat insulating box at a different part from the machine room. However, according to the present invention, a space for arranging the control unit can be shared with the machine room. Therefore, the area of the same surface of the back part of a refrigerator increases. Therefore, when the vacuum heat insulation panel is arranged on the back surface, the area of the vacuum heat insulation panel can be arranged widely widely, so that the heat insulation performance of the heat insulation box is greatly improved and the power consumption of the refrigerator is reduced. Can be reduced.
第２の発明は、特に、第１の発明の冷蔵庫本体の上部貯蔵室を冷蔵温度帯に設定し、下部貯蔵室を冷凍温度帯に設定し、機械室を断熱箱体の背面上部に配置したことにより、従来使い勝手の悪い断熱箱体上部を機械室として活用してもユーザーの使い勝手を悪化させること無く、機械室から上部貯蔵室内への熱侵入量を小さくすることができる。 In the second invention, in particular, the upper storage chamber of the refrigerator main body of the first invention is set to a refrigeration temperature zone, the lower storage chamber is set to a refrigeration temperature zone, and the machine room is arranged at the upper back of the heat insulating box. As a result, even if the upper part of the heat-insulating box that is conventionally unusable is used as a machine room, the amount of heat intrusion from the machine room into the upper storage room can be reduced without deteriorating the user-friendliness.
また、機械室を断熱箱体下部に配置した場合は、圧縮機の運転などにより発生した廃熱が断熱箱体背面部に沿って上昇し、貯蔵室内へ熱侵入してしまうが、機械室を断熱箱体上部に配置することでそのような熱侵入を抑制することができる。 In addition, when the machine room is arranged at the lower part of the heat insulation box, the waste heat generated by the operation of the compressor rises along the back of the heat insulation box and enters the storage room. Such heat intrusion can be suppressed by disposing the heat insulating box at the top.
第３の発明は、特に、第１の発明または第２の発明の冷凍サイクルを循環する冷媒に可燃性冷媒を用い、圧縮機は高温高圧気体の冷媒を排出する吐出管と、低温低圧気体の冷媒が流入する吸入管とを有し、機械室内において前記吐出管よりも前記吸入管を制御部近傍に配置したことで、万が一機械室内で可燃性冷媒が漏洩した場合でも、制御部近傍で可燃性冷媒が漏洩するリスクを軽減することができ、冷蔵庫の安全性を確保できる。 In particular, the third invention uses a combustible refrigerant as the refrigerant circulating in the refrigeration cycle of the first invention or the second invention, the compressor discharges a high-temperature high-pressure gas refrigerant, a low-temperature low-pressure gas By arranging the suction pipe closer to the control unit than the discharge pipe in the machine room, even if flammable refrigerant leaks in the machine room, it is combustible near the control part. The risk of leakage of the functional refrigerant can be reduced, and the safety of the refrigerator can be secured.
もし吸入管側で漏洩したとしても、冷媒の圧力が低いので短時間に大量に漏洩することは無い。 Even if it leaks on the suction pipe side, it does not leak in a large amount in a short time because the pressure of the refrigerant is low.
第４の発明は、特に、第１〜第３のいずれか一つの発明の断熱箱体の上面部に上面板を配置し、前記上面板は断熱箱体上面部と、機械室上部とを一体に覆うように構成したことにより、機械室を断熱箱体の背面上部に配置することによる断熱箱体上面の面積の減少を防止することができる。
In the fourth invention, in particular, an upper surface plate is disposed on the upper surface portion of the heat insulation box according to any one of the first to third inventions, and the upper surface plate integrally integrates the upper surface portion of the heat insulation box and the machine room upper portion. Since the machine room is arranged on the back upper part of the heat insulating box, the area of the upper surface of the heat insulating box can be prevented from being reduced.
特に背の低い小型冷蔵庫の上面部は、一般的に電子レンジなどの設置スペースとなっており、設置スペースを確保するために断熱箱体の奥行きを大きくする必要が無い。 In particular, the upper surface of a small small refrigerator is generally an installation space for a microwave oven or the like, and there is no need to increase the depth of the heat insulation box in order to secure the installation space.
また、上面板で機械室上面を覆うことで圧縮機の運転音が冷蔵庫本体上部へ漏洩することを抑制でき、更に圧縮機の廃熱が電子レンジなどへ悪影響を及ぼすことも抑制できるので冷蔵庫本体の品質を向上させることができる。 Moreover, by covering the upper surface of the machine room with the top plate, it is possible to suppress the compressor operating sound from leaking to the upper part of the refrigerator body, and further, it is possible to suppress the waste heat of the compressor from adversely affecting the microwave oven, etc. Can improve the quality.
また、冷蔵庫本体を上から見下ろした際の外観意匠も向上する。 In addition, the appearance design when the refrigerator main body is looked down from above is also improved.
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要部背面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 a rear view of a main part of the refrigerator according to the embodiment.
図１から図３において、冷蔵庫本体２０の断熱箱体２１は、樹脂にて形成された内箱２２と鋼板などの金属磁性体にて形成された外箱２３との間に断熱材２４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２１ａを有し、仕切壁２５，２６，２７，２８により、上部から冷蔵室２９、製氷室３０、第一の冷凍室３１、第二の冷凍室３２、野菜室３３と複数の貯蔵室を形成している。なお、製氷室３０と第一の冷凍室３１とは左右並列に配置されている。 1 to 3, a heat insulating box 21 of the refrigerator main body 20 is filled with a heat insulating material 24 between an inner box 22 formed of resin and an outer box 23 formed of a metal magnetic material such as a steel plate. It has a front opening 21a and is partitioned from the top by a partition wall 25, 26, 27, 28, from the top to the refrigerator compartment 29, the ice making room 30, the first freezer compartment 31, the second A freezer compartment 32, a vegetable compartment 33 and a plurality of storage rooms are formed. The ice making chamber 30 and the first freezing chamber 31 are arranged in parallel on the left and right.
冷蔵室２９と野菜室３３との保存設定温度は冷蔵温度帯に設定され、製氷室３０と第一の冷凍室３１と第二の冷凍室３２との保存設定温度は冷凍温度帯に設定されている。 The storage set temperature of the refrigerator compartment 29 and the vegetable compartment 33 is set to the refrigerator temperature zone, and the storage preset temperature of the ice making chamber 30, the first freezer compartment 31, and the second freezer compartment 32 is set to the freezer temperature zone. Yes.
また、各貯蔵室には全閉時に前面開口部２１ａを閉塞し、断熱箱体２１と連結され、それぞれ断熱壁を有する冷蔵室ドア２９ａ、製氷室ドア３０ａ、第一の冷凍室ドア３１ａ、第２の冷凍室ドア３２ａ、野菜室ドア３３ａを備える。更に冷蔵室ドア２９ａは右側上下端をそれぞれ回転軸を有する上部ヒンジ３４と下部ヒンジ３５とで断熱箱体２１と回動自在に連結されており、その他の貯蔵室は引出し式であり、各貯蔵室に備えられたレール部材３６によって前後方向に開閉自在に断熱箱体２１と連結されている。 In addition, each storage room closes the front opening 21a when fully closed, and is connected to the heat insulation box 21, and each has a refrigerating room door 29a, an ice making room door 30a, a first freezing room door 31a, a first 2 freezer compartment doors 32a and vegetable compartment doors 33a. Further, the refrigerator door 29a is pivotally connected to the heat insulating box 21 by an upper hinge 34 and a lower hinge 35 each having a rotation axis at the right upper and lower ends, and the other storage chambers are drawer-type. A rail member 36 provided in the chamber is connected to the heat insulating box 21 so as to be opened and closed in the front-rear direction.
レール部材３６は各貯蔵室の引出し容量や引出し長さに応じて、例えば比較的容量の小さい製氷室３０と容量の大きい野菜室３３とで異なる部材や位置に形成しても良い。 The rail member 36 may be formed at different members or positions in the ice making room 30 having a relatively small capacity and the vegetable room 33 having a large capacity, for example, depending on the drawing capacity and the drawing length of each storage room.
更に、各貯蔵室ドアの断熱箱体２１側の面は、全閉時に前面開口部２１ａとの間に５ｍｍ程度の空間３７を有し、空間３７は各貯蔵室ドアの断熱箱体２１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３８の磁力にて前面開口部２１ａにガスケット３８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。 Further, the surface of each storage compartment door on the side of the heat insulation box 21 has a space 37 of about 5 mm between the front opening 21a when fully closed, and the space 37 is the surface of the heat insulation box 21 of each storage compartment door. The gasket 38 can be brought into close contact with the front opening 21a by the magnetic force of the gasket 38 having magnets provided on the upper, lower, left, and right sides, and each storage chamber is sealed in a substantially hermetically sealed manner.
また、断熱箱体２１は冷蔵庫本体２０を運転時に冷却する冷凍サイクル（図示せず）を有し、この冷凍サイクルは圧縮機５０と凝縮器（図示せず）と減圧器（図示せず）と蒸発器５１とを順に備えて一連の冷媒流路を備えている。 The heat insulation box 21 has a refrigeration cycle (not shown) that cools the refrigerator body 20 during operation. The refrigeration cycle includes a compressor 50, a condenser (not shown), and a decompressor (not shown). The evaporator 51 is provided in order, and a series of refrigerant flow paths are provided.
冷凍サイクルの冷媒は可燃性の炭化水素系冷媒、例えばイソブタンを使用しており、イソブタンの密度は空気より大きい。 The refrigerant of the refrigeration cycle uses a flammable hydrocarbon refrigerant such as isobutane, and the density of isobutane is larger than that of air.
また、断熱箱体２１の背面側の上下にそれぞれ上凹部２１ｂと下凹部２１ｃとを有する。 Moreover, it has the upper recessed part 21b and the lower recessed part 21c on the upper and lower sides of the back side of the heat insulation box 21, respectively.
上凹部２１ｂは断熱箱体２１の上面部と背面部との一部を切り欠き、断熱材２４を介し
て冷蔵室２９と対向するように形成され、上凹部２１ｂには機械室６０を配置し、機械室６０内には圧縮機５０と制御部７０とを配置し、機械室６０の上面と背面とは鋼板などの良熱伝導性材料にて形成された機械室カバー８０にて一体に覆われている。
The upper concave portion 21b is formed by notching a part of the upper surface portion and the rear surface portion of the heat insulating box 21 and facing the refrigerator compartment 29 with the heat insulating material 24 interposed therebetween. A machine room 60 is disposed in the upper concave portion 21b. The compressor 50 and the control unit 70 are disposed in the machine room 60, and the upper surface and the back surface of the machine room 60 are integrally covered with a machine room cover 80 formed of a good heat conductive material such as a steel plate. It has been broken.
圧縮機５０は高温高圧気体の冷媒を排出する吐出管５０ａと、低温低圧気体の冷媒が流入する吸入管５０ｂとを有し、吐出管５０ａと吸入管５０ｂとは圧縮機５０の左右両端にそれぞれ備えられ、冷凍サイクルを形成する他の部品と連結される。 The compressor 50 includes a discharge pipe 50a that discharges a high-temperature and high-pressure gas refrigerant, and a suction pipe 50b into which a low-temperature and low-pressure gas refrigerant flows. The discharge pipe 50a and the suction pipe 50b are respectively provided at the left and right ends of the compressor 50. Provided and connected to other components forming the refrigeration cycle.
運転時の冷媒の圧力は吐出管５０ａで数気圧、吸入管５０ｂで１気圧以下となっている。 The pressure of the refrigerant during operation is several atmospheres in the discharge pipe 50a and 1 atmosphere or less in the suction pipe 50b.
また、圧縮機５０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、直流電力を電気的に交流電力に変換してインバータ制御される。 The compressor 50 is a reciprocating compressor that compresses refrigerant by reciprocating a piston in a cylinder. The compressor 50 is inverter-controlled by electrically converting DC power into AC power.
インバータ制御によって圧縮機５０の駆動周波数を複数の所定値に段階的に切り替えることが可能となり、効率的に各貯蔵室を冷却している。 The inverter control enables the drive frequency of the compressor 50 to be switched in stages to a plurality of predetermined values, and each storage chamber is efficiently cooled.
制御部７０は圧縮機５０など冷蔵庫本体２０の電気部品を駆動制御し、各電気部品とケーブル（図示せず）にて連結され、圧縮機５０の吸入管５０ｂ側に配置されている。 The control unit 70 drives and controls electric parts of the refrigerator main body 20 such as the compressor 50, is connected to each electric part by a cable (not shown), and is disposed on the suction pipe 50 b side of the compressor 50.
本実施例では冷蔵庫本体２０を背面から見て左から制御部７０、吸入管５０ｂ、吐出管５０ａの順に配置している。 In this embodiment, the refrigerator main body 20 is arranged in the order of the control unit 70, the suction pipe 50b, and the discharge pipe 50a from the left when viewed from the back.
また、機械室カバー８０は排気口８０ａを有する。 The machine room cover 80 has an exhaust port 80a.
排気口８０ａは機械室カバー８０の背面側に設けられ、圧縮機５０の吸入管５０ｂ及び制御部７０の近傍は機械室カバー８０の下部を開放し、吐出管５０ａの近傍は機械室カバー８０の上部を開放しており、機械室６０の背面側の左右両端近傍に大きく二分して配置されている。 The exhaust port 80a is provided on the back side of the machine room cover 80, the vicinity of the suction pipe 50b and the control unit 70 of the compressor 50 opens the lower part of the machine room cover 80, and the vicinity of the discharge pipe 50a is the machine room cover 80. The upper part is opened, and the machine room 60 is roughly divided into two near the left and right ends on the back side.
下凹部２１ｃは断熱箱体２１の底面部と背面部との一部を切り欠き、断熱材２４を介して野菜室３３と対向するように形成され、下凹部２１ｃには蒸発器５１の除霜時に発生する除霜水を熱源や送風により強制的に蒸発処理する除霜水処理部９０を配置している。 The lower concave portion 21 c is formed by cutting out a part of the bottom surface portion and the rear surface portion of the heat insulating box body 21 so as to face the vegetable compartment 33 through the heat insulating material 24, and defrosting the evaporator 51 in the lower concave portion 21 c. A defrosting water treatment unit 90 is disposed for forcibly evaporating the defrosting water generated at times by a heat source or air blow.
また、下凹部２１ｃの背面部の切欠き高さは、上凹部２１ｂの切欠き高さよりも低くなるように構成されている。 Moreover, the notch height of the back part of the lower recessed part 21c is comprised so that it may become lower than the notch height of the upper recessed part 21b.
外箱２３の背面部の上凹部２１ｂと下凹部２１ｃとの間の断熱材２４内には真空断熱パネル１００を配置している。 A vacuum heat insulating panel 100 is disposed in the heat insulating material 24 between the upper concave portion 21b and the lower concave portion 21c of the rear portion of the outer box 23.
真空断熱パネル１００は外箱２３の背面部の両凹部間の平面部ほぼ全体を所定の厚みをもって一体に覆い、断熱材２４を介して蒸発器５１や各貯蔵室の背面側に配置され、各貯蔵室に低温の空気を循環させるダクト１１０のほぼ全体と対向するように構成されている。 The vacuum heat insulation panel 100 integrally covers the entire flat surface portion between both concave portions of the back surface portion of the outer box 23 with a predetermined thickness, and is disposed on the back surface side of the evaporator 51 and each storage chamber via the heat insulating material 24. It is configured to face almost the entire duct 110 that circulates low-temperature air in the storage chamber.
また、真空断熱パネル１００の熱伝導率は断熱材２４より小さいものを使用している。 Moreover, the heat insulation of the vacuum heat insulation panel 100 is smaller than that of the heat insulating material 24.
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、冷凍サイクルが運転されると圧縮機５０の圧縮動作により吐出された高温高圧の
冷媒は凝縮器にて周囲の空気と熱交換して放熱する。放熱によって凝縮液化した冷媒は減圧器に至って減圧された後、蒸発器５１において貯蔵室内の空気と熱交換を行ない蒸発する。
First, when the refrigeration cycle is operated, the high-temperature and high-pressure refrigerant discharged by the compression operation of the compressor 50 exchanges heat with the surrounding air in the condenser and dissipates heat. The refrigerant condensed and liquefied by heat radiation reaches the decompressor and is decompressed, and then evaporates by exchanging heat with the air in the storage chamber in the evaporator 51.
この時、蒸発作用により蒸発器周辺の空気が低温になり、その空気をダクト１１０を通じて貯蔵室内に循環させることで各貯蔵室が設定された温度帯まで冷却保持される。 At this time, the air around the evaporator becomes a low temperature due to the evaporating action, and the air is circulated in the storage chamber through the duct 110 to cool and hold each storage chamber to the set temperature zone.
また、真空断熱パネル１００によって断熱箱体２１の背面部からの熱侵入量は断熱材２４のみの場合より少なくなる。 Further, the vacuum heat insulation panel 100 reduces the amount of heat penetration from the back surface of the heat insulation box 21 as compared with the case of the heat insulation 24 alone.
更に、冷蔵庫本体２０の中で最も温度が低い蒸発器５１やダクト１１０への熱侵入量を低減できるので、特に冷蔵庫本体２０の運転時の断熱性能が大幅に向上し、低温の空気がダクト１１０内を通気する際の受熱ロスを低減することができる。 Further, since the heat penetration amount into the evaporator 51 and the duct 110 having the lowest temperature in the refrigerator main body 20 can be reduced, the heat insulation performance during the operation of the refrigerator main body 20 is greatly improved, and the low-temperature air can be reduced. It is possible to reduce heat receiving loss when the inside is ventilated.
受熱ロス低減効果はダクト１１０の経路面積が広いほど大きくなるので、貯蔵室容量が多い大型冷蔵庫で特に効果を発揮する。 Since the effect of reducing the heat receiving loss increases as the path area of the duct 110 increases, it is particularly effective in a large refrigerator having a large storage room capacity.
もちろん、真空断熱パネル１００を断熱箱体２１の両側面部や上下面部に追加すると更に断熱箱体２１の断熱性能が向上するが、蒸発器５１やダクト１１０と対向している断熱箱体２１の背面部に配置することで最も効率よく断熱性能を向上させることができる。 Of course, if the vacuum heat insulation panel 100 is added to both side surfaces and upper and lower surface portions of the heat insulation box 21, the heat insulation performance of the heat insulation box 21 is further improved, but the back surface of the heat insulation box 21 facing the evaporator 51 and the duct 110. The thermal insulation performance can be improved most efficiently by arranging in the part.
なお、本実施の形態では真空断熱パネル１００を一体にて形成したが、分割したり穴を開けてしまうと、真空断熱パネル１００の厚み方向の側面積が増えてしまうので、外箱２３の背面から断熱材２４への熱侵入量が増加してしまうため、材料費や真空断熱パネル１００や冷蔵庫本体２０の量産工法で対応可能な限り一体で形成するほうが断熱性能は向上する。 In this embodiment, the vacuum heat insulation panel 100 is integrally formed. However, if the vacuum heat insulation panel 100 is divided or opened, the side area in the thickness direction of the vacuum heat insulation panel 100 increases. Therefore, the heat insulation performance is improved by integrally forming as much as possible by the material cost and the mass production method of the vacuum heat insulation panel 100 and the refrigerator main body 20.
また、冷蔵室２９と機械室６０とを対向させることにより、冷凍温度帯の貯蔵室と対向させた場合に比べて、機械室６０内の圧縮機５０の運転時に発生する暖気と貯蔵室内との温度差が小さくなるので、貯蔵室内への熱侵入量を低減することができる。 Moreover, by making the refrigerator compartment 29 and the machine room 60 face each other, compared with the case where the refrigerator room 29 faces the storage room in the freezing temperature zone, the warm air generated during the operation of the compressor 50 in the machine room 60 and the storage room are reduced. Since the temperature difference becomes small, the amount of heat penetration into the storage chamber can be reduced.
なお、本実施の形態では最下の貯蔵室を野菜室３３としたので、機械室６０を下凹部２１ｃに配置しても機械室６０から貯蔵室内への熱侵入量低減効果は同様に得ることができる。 In the present embodiment, since the lowermost storage room is the vegetable room 33, the effect of reducing the amount of heat penetration from the machine room 60 into the storage room can be obtained even if the machine room 60 is arranged in the lower recess 21c. Can do.
しかしながら、機械室カバー８０の排気口８０ａから排気された圧縮機５０の廃熱は断熱箱体２１の背面部に沿って上昇していくため、野菜室３３以外の貯蔵室背面から熱が侵入するので機械室６０は上凹部２１ｂに配置するほうが望ましい。 However, since the waste heat of the compressor 50 exhausted from the exhaust port 80a of the machine room cover 80 rises along the back surface of the heat insulating box 21, heat enters from the back of the storage room other than the vegetable room 33. Therefore, it is desirable to arrange the machine room 60 in the upper recess 21b.
機械室６０を上凹部２１ｂに備えることで、冷蔵室２９の背面上部の貯蔵空間が減ってしまうが、特に全高の高い大型冷蔵庫においては本部は手が届きにくく、使い勝手の悪い部分であるため、冷蔵庫本体２０の使い勝手を悪化させることは無い。 By providing the machine room 60 in the upper recess 21b, the storage space at the upper back of the refrigerator compartment 29 is reduced, but the headquarters is particularly difficult to reach in a large refrigerator with a high overall height, The usability of the refrigerator main body 20 is not deteriorated.
更に、上凹部２１ｂの背面部の切欠き高さを下凹部２１ｃの切欠き高さより低くして、最下の貯蔵室の野菜室３３にレール部材３６を備えて引出しドアとすることで、野菜室３３の奥行き寸法を大きく、かつ使い勝手良く被冷却食品を出し入れすることができる。 Further, the height of the notch on the back surface of the upper recess 21b is made lower than the notch height of the lower recess 21c, and the vegetable compartment 33 of the lowest storage room is provided with a rail member 36 to serve as a drawer door. The depth dimension of the chamber 33 is large, and the food to be cooled can be taken in and out easily.
また、圧縮機５０と制御部７０とを近傍に配置したことにより電磁妨害も抑制できる。 Moreover, electromagnetic interference can also be suppressed by arrange | positioning the compressor 50 and the control part 70 in the vicinity.
特に本実施の形態のようにインバータ制御を行なう場合には、まず家庭用の交流電力を
高圧の直流電力に変換し、再度電気的に交流電力に変換する際に圧縮機５０の電圧などを数千分の１秒の間隔で制御しているため、わずかな電磁妨害でも誤動作や動作ロスにつながってしまう。
In particular, when inverter control is performed as in the present embodiment, first, the household AC power is converted into high-voltage DC power, and when the electrical power is again converted into AC power, the voltage of the compressor 50 is several. Since the control is performed at an interval of a thousandth of a second, even a slight electromagnetic interference leads to a malfunction or loss of operation.
したがって、電磁妨害対策は必須であるが、近傍に配置することで対策範囲も狭くなり簡易な仕様とすることができる。 Therefore, electromagnetic interference countermeasures are indispensable, but by arranging them in the vicinity, the countermeasure range becomes narrow and simple specifications can be achieved.
このような対策を必要とするインバータ制御であるが、これにより貯蔵室の冷却状態に応じて圧縮機５０の回転数を変更することが可能となるので、冷蔵庫本体２０の消費電力量を大幅に低減できることは言うまでもない。 Although it is inverter control which requires such a measure, since it becomes possible to change the rotation speed of the compressor 50 according to the cooling state of a storage room by this, the electric power consumption of the refrigerator main body 20 is greatly increased. Needless to say, it can be reduced.
また、機械室カバー８０に排気口８０ａを設けることで、機械室６０内の熱と、万が一機械室６０内で漏洩した冷媒とを機械室６０内に滞留することなく、外気へ排気できる。 Further, by providing the exhaust port 80a in the machine room cover 80, the heat in the machine room 60 and the refrigerant leaked in the machine room 60 should be exhausted to the outside air without staying in the machine room 60.
機械室６０内の熱は主に圧縮機５０と制御部７０から発生する。 The heat in the machine room 60 is mainly generated from the compressor 50 and the control unit 70.
これらは高熱になると効率や信頼性が低下するので排気により、それぞれの温度を低減する必要がある。 When these are heated to high temperatures, their efficiency and reliability are lowered, so it is necessary to reduce their temperatures by exhaust.
本実施の形態では機械室カバー８０を良熱伝導性材料にて形成したことにより、排気口８０ａからの排気以外に機械室カバー８０の熱伝導による放熱を追加できるので、例えば冷蔵庫本体２０の周囲が壁に密着して設置されたり、長期使用時に排気口８０ａが埃などで閉塞した場合でも圧縮機５０や制御部７０の効率や信頼性の低下を抑制できる。 In the present embodiment, since the machine room cover 80 is formed of a highly heat conductive material, heat radiation due to heat conduction of the machine room cover 80 can be added in addition to the exhaust from the exhaust port 80a. However, even when the exhaust port 80a is closed with dust or the like during long-term use, it is possible to suppress a reduction in efficiency and reliability of the compressor 50 and the control unit 70.
一方、機械室６０内の滞留を防止するためには自然対流を利用する必要がある。 On the other hand, it is necessary to use natural convection to prevent stagnation in the machine room 60.
もちろん、機械室ファンを配置することも可能だが、冷蔵庫本体２０の消費電力量やコストが増加してしまうのに加え、小型の冷蔵庫にいたっては機械室６０内に圧縮機５０と制御部７０とに加えて機械室ファンを配置することも困難である。 Of course, it is possible to arrange a fan in the machine room. However, in addition to an increase in power consumption and cost of the refrigerator main body 20, the compressor 50 and the control unit 70 are provided in the machine room 60 for a small refrigerator. In addition, it is also difficult to arrange a machine room fan.
自然対流を利用するため、温度差の大きい部分に排気口８０ａを設けると対流が促進されるので、本実施の形態では一番高温となる圧縮機５０の吐出管５０ａ近傍の機械室カバー８０の上部に排気口８０ａを設けて排気し、比較的低温の吸入管５０ｂと制御部７０近傍の機械室カバー８０の下部に排気口８０ａを設けて吸気させている。 In order to use natural convection, if the exhaust port 80a is provided in a portion where the temperature difference is large, convection is promoted. Therefore, in this embodiment, the machine chamber cover 80 in the vicinity of the discharge pipe 50a of the compressor 50 having the highest temperature is used. An exhaust port 80a is provided at the upper part for exhausting air, and an exhaust port 80a is provided at the lower part of the machine room cover 80 in the vicinity of the relatively low temperature suction pipe 50b and the control unit 70 for intake.
この時、冷蔵庫本体２０の左右方向に圧縮機５０や制御部７０を配置して、排気口８０ａを機械室６０の左右両端近傍に配置することで、機械室６０内全体を対流させることができる。 At this time, by arranging the compressor 50 and the control unit 70 in the left-right direction of the refrigerator main body 20 and disposing the exhaust ports 80a in the vicinity of both left and right ends of the machine room 60, the entire inside of the machine room 60 can be convected. .
なお、本実施の形態では排気口８０ａの位置を限定しているが、放熱や滞留防止のためには排気口８０ａは広く確保するほうが望ましいので、機械室カバー８０の上面部などにも排気口８０ａを設けることも考えられる。特に吐出管５０ａ上部に設けると放熱効果は絶大となる。 Although the position of the exhaust port 80a is limited in the present embodiment, it is desirable to secure a wide exhaust port 80a in order to prevent heat dissipation and retention, so that the exhaust port 80a is also provided on the upper surface of the machine room cover 80. It is also conceivable to provide 80a. In particular, when it is provided on the upper part of the discharge pipe 50a, the heat radiation effect becomes great.
しかしながら、背の高い大型冷蔵庫でも冷蔵庫本体２０の上面部に被冷却物を置いて保管される場合があり、その際には上面の排気口８０ａが閉塞されないように配慮することが必要である。 However, even a tall large refrigerator may be stored with the object to be cooled placed on the upper surface of the refrigerator body 20, and in that case, it is necessary to consider that the upper air outlet 80a is not blocked.
これらによっても機械室６０内の滞留を防止できるが、万が一可燃性冷媒が機械室６０内で漏洩した場合は、圧縮機５０の吸入管５０ｂ側を制御部７０近傍に配置することで、
漏洩した冷媒が制御部７０に高圧で噴霧されることを防止できる。
These can also prevent stagnation in the machine room 60, but in the unlikely event that flammable refrigerant leaks in the machine room 60, the suction pipe 50b side of the compressor 50 is disposed in the vicinity of the control unit 70,
It is possible to prevent the leaked refrigerant from being sprayed on the control unit 70 at a high pressure.
更に、可燃性冷媒は一般的に空気より比重が大きいので、圧縮機５０が停止して自然対流が発生し難い時でも制御部７０の下部に排気口８０ａを設けることで滞留することなく自然に冷媒は外気に流出する。 Further, since the specific gravity of the flammable refrigerant is generally larger than that of air, even when the compressor 50 is stopped and natural convection is difficult to occur, the exhaust port 80a is provided at the lower part of the control unit 70 so that it does not stay naturally. The refrigerant flows out to the outside air.
また、本実施の形態ではインバータ制御の圧縮機５０や真空断熱パネル１００を使用して冷蔵庫本体２０の消費電力量を低減しているが、消費電力量の設定値に応じて通常制御の圧縮機を使用したり、真空断熱パネル１００を廃止して断熱材２４にて置換することも可能である。 Further, in this embodiment, the inverter-controlled compressor 50 and the vacuum heat insulation panel 100 are used to reduce the power consumption of the refrigerator main body 20, but the normal-control compressor according to the set value of the power consumption Can be used, or the vacuum heat insulating panel 100 can be eliminated and replaced with the heat insulating material 24.
その時は真空断熱パネル１００の体積分に見合った量の断熱材２４を追加補充することが必要だが、設備の設定変更のみで対応可能であり、圧縮機５０の変更も含めて金型投資や課題対策を行なう必要も無い。 At that time, it is necessary to replenish the heat insulating material 24 in an amount corresponding to the volume of the vacuum heat insulating panel 100, but it can be dealt with only by changing the setting of the equipment. There is no need to take measures.
以上のように、本実施の形態においては 圧縮機５０と制御部７０とを機械室６０内に配置し、機械室６０は断熱材２４を介して冷蔵室２９と対向し、冷蔵室２９の保存設定温度を冷蔵温度帯としたことにより、断熱箱体２１の背面部を広範囲に同一面にて形成することが可能となり、背面部に真空断熱パネル１００を配置する場合に、真空断熱パネル１００の面積を一体に広く配置することが可能となるので、断熱箱体２１の断熱性能が大幅に向上し、冷蔵庫本体２０の消費電力量を低減することができる。 As described above, in the present embodiment, the compressor 50 and the control unit 70 are disposed in the machine room 60, and the machine room 60 is opposed to the refrigerating room 29 with the heat insulating material 24 interposed therebetween. By setting the set temperature to the refrigeration temperature zone, it becomes possible to form the back surface portion of the heat insulation box 21 on the same surface in a wide range, and when the vacuum heat insulation panel 100 is disposed on the back surface portion, Since it becomes possible to arrange | position an area widely widely, the heat insulation performance of the heat insulation box 21 improves significantly, and the power consumption of the refrigerator main body 20 can be reduced.
また、圧縮機５０と冷蔵室２９との温度差が小さくなるので、冷蔵室２９内への熱侵入量が少なくなり、更に冷蔵庫本体２０の消費電力量を低減することができる。 Moreover, since the temperature difference between the compressor 50 and the refrigerator compartment 29 becomes small, the amount of heat entering the refrigerator compartment 29 is reduced, and the power consumption of the refrigerator body 20 can be further reduced.
また、機械室６０内に圧縮機５０と制御部７０とを配置しているため、圧縮機５０を直流電力を必要とするインバータ圧縮機としても、電磁妨害を受けたり通電時のロスが増大することも無いので、新たに電磁課題対策を行なう必要なくインバータ圧縮機を使用することで冷蔵庫本体２０の消費電力量を低減することができる。 In addition, since the compressor 50 and the control unit 70 are disposed in the machine room 60, even when the compressor 50 is an inverter compressor that requires DC power, electromagnetic interference or loss during energization increases. Since there is nothing, the power consumption of the refrigerator main body 20 can be reduced by using an inverter compressor without the need to newly take countermeasures against electromagnetic problems.
更に、消費電力量に応じて真空断熱パネル１００を追加廃止したり、圧縮機５０を交流電力にて駆動する仕様に変更すればよいので、金型投資をして断熱箱体２１を新規開発する必要も無い。 Furthermore, depending on the amount of power consumed, the vacuum heat insulation panel 100 may be additionally abolished or the compressor 50 may be changed to a specification that drives the compressor 50 with AC power. Therefore, the heat insulation box 21 is newly developed by investing in a mold. There is no need.
また、機械室６０を断熱箱体２１の背面上部に配置したことにより、従来使い勝手の悪い断熱箱体２１上部を機械室６０として活用してもユーザーの使い勝手を悪化させること無く、機械室６０から冷蔵室２９内への熱侵入量を小さくすることができる。 In addition, since the machine room 60 is arranged on the upper rear surface of the heat insulation box 21, even if the upper part of the heat insulation box 21 that has been conventionally unusable is used as the machine room 60, the user's convenience is not deteriorated. The amount of heat entering the refrigerator compartment 29 can be reduced.
また、冷凍サイクルを循環する冷媒に可燃性冷媒を用いても、機械室６０内において吐出管５０ａよりも吸入管５０ｂを制御部７０近傍に配置したことで、万が一機械室６０内で可燃性冷媒が漏洩した場合でも、制御部７０近傍で可燃性冷媒が漏洩するリスクを軽減することができ、冷蔵庫本体２０の安全性を確保できる。 Even if a flammable refrigerant is used as the refrigerant circulating in the refrigeration cycle, the suction pipe 50b is disposed in the vicinity of the control unit 70 in the machine chamber 60 rather than the discharge pipe 50a. Even if leaks, the risk of flammable refrigerant leaking in the vicinity of the control unit 70 can be reduced, and the safety of the refrigerator body 20 can be ensured.
また、機械室６０の少なくとも背面には機械室カバー８０を備え、排気口８０ａを少なくとも制御部７０近傍は前記機械室カバー８０の下部に設け、かつ圧縮機５０近傍は機械室カバー８０の上部に設けたことにより、可燃性冷媒が漏洩しても制御部７０近傍に滞留することを防止できるので冷蔵庫本体２００の安全性を確保できる。 A machine room cover 80 is provided at least on the back surface of the machine room 60, and an exhaust port 80a is provided at the lower part of the machine room cover 80 at least in the vicinity of the control unit 70, and at the upper part of the machine room cover 80 in the vicinity of the compressor 50. By providing, since it can prevent staying in the control part 70 vicinity even if a combustible refrigerant | coolant leaks, the safety | security of the refrigerator main body 200 is securable.
（実施の形態２）
図４は本発明の実施の形態２における冷蔵庫の断面図、図５は同実施の形態の冷蔵庫の
要部背面図である。
(Embodiment 2)
4 is a cross-sectional view of the refrigerator according to the second embodiment of the present invention, and FIG. 5 is a main part rear view of the refrigerator according to the same embodiment.
なお、本実施の形態において実施の形態１と同一の構成に関しては同一の番号を付し、説明を省略する。 In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
図４と図５において、冷蔵庫本体２００は実施の形態１よりも外形が小さい小型冷蔵庫である。 4 and 5, the refrigerator main body 200 is a small refrigerator having a smaller outer shape than that of the first embodiment.
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、仕切壁２０５により、上部から冷蔵室２０６、冷凍室２０７と、複数の貯蔵室を形成している。 The heat insulating box 201 of the refrigerator main body 200 is formed of a heat insulating wall filled with a heat insulating material 204 between an inner box 202 formed of resin and an outer box 203 formed of a metal magnetic material such as a steel plate. It has a front opening 201a, and a partition wall 205 forms a refrigerator compartment 206, a freezer compartment 207, and a plurality of storage compartments from above.
冷蔵室２０６の保存設定温度は冷蔵温度帯に設定され、冷凍室２０７の保存設定温度は冷凍温度帯に設定されている。 The storage set temperature of the refrigerator compartment 206 is set to the refrigerator temperature zone, and the storage preset temperature of the freezer compartment 207 is set to the freezer temperature zone.
また、各貯蔵室には全閉時に前面開口部２０１ａを閉塞し、断熱箱体２０１と連結され、それぞれ断熱壁を有する冷蔵室ドア２０６ａ、冷凍室ドア２０７ａを備える。更に冷蔵室ドア２０６ａと冷凍室ドア２０７ａとは右側上下端をそれぞれ回転軸を有する上部ヒンジ２０８と中部ヒンジ２０９下部ヒンジ２１０とで断熱箱体２０１と回動自在に連結されている。 Each storage room includes a refrigerator compartment door 206a and a freezer compartment door 207a that closes the front opening 201a when fully closed and is connected to the heat insulation box 201 and has a heat insulation wall. Furthermore, the refrigerator compartment door 206a and the freezer compartment door 207a are rotatably connected to the heat insulating box 201 by an upper hinge 208 and a middle hinge 209 and a lower hinge 210, each having a rotation axis at the right upper and lower ends.
更に、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２１１を有し、空間２１１は各貯蔵室ドアの断熱箱体２０１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２１２の磁力にて前面開口部２０１ａにガスケット２１２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。 Furthermore, the surface of each storage room door on the side of the heat insulation box 201 has a space 211 of about 5 mm between the front opening 201a when fully closed, and the space 211 is the surface of the heat insulation box 201 of each storage room door. The gasket 212 having magnets provided on the four sides of the upper, lower, left and right sides can be brought into close contact with each other by adsorbing the gasket 212 to the front opening 201a, and each storage chamber is sealed in a substantially sealed manner.
また、断熱箱体２０１は冷蔵庫本体２００を運転時に冷却する冷凍サイクル（図示せず）を有し、この冷凍サイクルは圧縮機２２０と凝縮器（図示せず）と減圧器（図示せず）と蒸発器２２１とを順に備えて一連の冷媒流路を備えている。 The heat insulation box 201 has a refrigeration cycle (not shown) that cools the refrigerator main body 200 during operation. The refrigeration cycle includes a compressor 220, a condenser (not shown), and a decompressor (not shown). The evaporator 221 is provided in order, and a series of refrigerant flow paths are provided.
冷凍サイクルの冷媒は可燃性の炭化水素系冷媒、例えばイソブタンを使用しており、イソブタンの密度は空気より大きい。 The refrigerant of the refrigeration cycle uses a flammable hydrocarbon refrigerant such as isobutane, and the density of isobutane is larger than that of air.
また、断熱箱体２０１の背面側の上下にそれぞれ上凹部２０１ｂと下凹部２０１ｃとを有する。 Moreover, it has the upper recessed part 201b and the lower recessed part 201c on the upper and lower sides of the back surface side of the heat insulation box 201, respectively.
上凹部２０１ｂは断熱箱体２０１の上面部と背面部との一部を切り欠き、断熱材２０４を介して冷蔵室２０６と対向するように形成され、上凹部２０１ｂには機械室２３０を配置し、機械室２３０内には圧縮機２２０と制御部２４０とを配置している。 The upper concave portion 201b is formed by cutting out part of the upper surface portion and the rear surface portion of the heat insulating box 201 and facing the refrigerator compartment 206 through the heat insulating material 204. The upper concave portion 201b is provided with a machine room 230. The compressor 220 and the control unit 240 are disposed in the machine room 230.
また、機械室２３０の背面は鋼板などの良熱伝導性材料にて形成された機械室カバー２５０にて覆われ、断熱箱体２０１の上面と機械室２３０との上面は耐熱温度が１００℃以上の樹脂にて形成された上面板２６０にて一体に覆われている。 Further, the back surface of the machine room 230 is covered with a machine room cover 250 formed of a good heat conductive material such as a steel plate, and the upper surface of the heat insulating box 201 and the upper surface of the machine room 230 have a heat resistant temperature of 100 ° C. or higher. Are integrally covered with an upper surface plate 260 formed of the above resin.
圧縮機２２０は高温高圧気体の冷媒を排出する吐出管２２０ａと、低温低圧気体の冷媒が流入する吸入管２２０ｂとを有し、吐出管２２０ａと吸入管２２０ｂとは圧縮機２２０の左右両端にそれぞれ備えられ、冷凍サイクルを形成する他の部品と連結される。 The compressor 220 includes a discharge pipe 220 a that discharges a high-temperature and high-pressure gas refrigerant, and a suction pipe 220 b into which a low-temperature and low-pressure gas refrigerant flows. The discharge pipe 220 a and the suction pipe 220 b are respectively provided at the left and right ends of the compressor 220. Provided and connected to other components forming the refrigeration cycle.
運転時の冷媒の圧力は吐出管２２０ａで数気圧、吸入管２２０ｂで１気圧以下となっている。 The pressure of the refrigerant during operation is several atmospheres in the discharge pipe 220a and 1 atmosphere or less in the suction pipe 220b.
また、圧縮機２２０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、直流電力を電気的に交流電力に変換してインバータ制御される。 The compressor 220 is a reciprocating compressor that compresses the refrigerant by reciprocating the piston in the cylinder. The compressor 220 is inverter-controlled by electrically converting DC power into AC power.
インバータ制御によって圧縮機２２０の駆動周波数を複数の所定値に段階的に切り替えることが可能となり、効率的に各貯蔵室を冷却している。 The inverter control enables the drive frequency of the compressor 220 to be switched in stages to a plurality of predetermined values, and each storage chamber is efficiently cooled.
制御部２４０は圧縮機２２０など冷蔵庫本体２００の電気部品を駆動制御し、各電気部品とケーブル（図示せず）にて連結され、圧縮機２２０の吸入管２２０ｂ側に配置されている。 The control unit 240 drives and controls electric parts of the refrigerator main body 200 such as the compressor 220, is connected to each electric part by a cable (not shown), and is arranged on the suction pipe 220b side of the compressor 220.
本実施例では冷蔵庫本体２００を背面から見て左から制御部２４０、吸入管２２０ｂ、吐出管２２０ａの順に配置している。 In this embodiment, the refrigerator main body 200 is arranged from the left when viewed from the back, in the order of the control unit 240, the suction pipe 220b, and the discharge pipe 220a.
また、機械室カバー２５０は排気口２５０ａを有する。 The machine room cover 250 has an exhaust port 250a.
排気口２５０ａは圧縮機２２０の吸入管２２０ｂ及び制御部２４０の近傍は機械室カバー２５０の下部を開放し、吐出管２２０ａの近傍は機械室カバー２５０の上部を開放しており、機械室２３０の背面側の左右両端近傍に大きく二分して配置されている。 The exhaust port 250a opens the lower part of the machine room cover 250 in the vicinity of the suction pipe 220b and the control unit 240 of the compressor 220, and opens the upper part of the machine room cover 250 in the vicinity of the discharge pipe 220a. In the vicinity of the left and right ends on the back side, it is arranged in two.
一方、上面板２６０には通気口を設けていない。 On the other hand, the upper surface plate 260 is not provided with a vent hole.
下凹部２０１ｃは断熱箱体２０１の底面部と背面部との一部を切り欠き、断熱材２０４を介して冷凍室２０７と対向するように形成され、下凹部２０１ｃには蒸発器２２１の除霜時に発生する除霜水を熱源や送風により強制的に蒸発処理する除霜水処理部２７０を配置している。 The lower recessed portion 201c is formed by cutting out a part of the bottom surface portion and the back surface portion of the heat insulating box 201 and facing the freezer compartment 207 through the heat insulating material 204. The defrosting of the evaporator 221 is formed in the lower recessed portion 201c. A defrosting water treatment unit 270 is provided for forcibly evaporating the defrosting water that is generated at times by a heat source or air blow.
また、下凹部２０１ｃの背面部の切欠き高さは、上凹部２０１ｂの切欠き高さよりも低くなるように構成されている。 Moreover, the notch height of the back part of the lower recessed part 201c is comprised so that it may become lower than the notch height of the upper recessed part 201b.
外箱２０３の背面部の上凹部２０１ｂと下凹部２０１ｃとの間の断熱材２０４内には真空断熱パネル２８０を配置している。 A vacuum heat insulating panel 280 is disposed in the heat insulating material 204 between the upper concave portion 201b and the lower concave portion 201c of the rear portion of the outer box 203.
真空断熱パネル２８０は外箱２０３の背面部の両凹部間の平面部ほぼ全体を所定の厚みをもって一体に覆い、断熱材２０４を介して蒸発器２２１や各貯蔵室の背面側に配置され、各貯蔵室に低温の空気を循環させるダクト２９０のほぼ全体と対向するように構成される。 The vacuum heat insulation panel 280 integrally covers the entire flat portion between both concave portions of the back surface portion of the outer box 203 with a predetermined thickness, and is disposed on the back side of the evaporator 221 and each storage chamber via the heat insulating material 204. It is comprised so that it may oppose substantially the whole duct 290 which circulates low temperature air to a storage chamber.
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、冷凍サイクルが運転されると圧縮機２２０の圧縮動作により吐出された高温高圧の冷媒は、凝縮器にて周囲の空気と熱交換して放熱する。放熱によって凝縮液化した冷媒は、減圧器に至って減圧された後、蒸発器２２１において貯蔵室内の空気と熱交換を行ない蒸発する。 First, when the refrigeration cycle is operated, the high-temperature and high-pressure refrigerant discharged by the compression operation of the compressor 220 radiates heat by exchanging heat with ambient air in the condenser. The refrigerant condensed and liquefied by heat radiation reaches the decompressor and is depressurized, and then evaporates by exchanging heat with the air in the storage chamber in the evaporator 221.
この時、蒸発作用により蒸発器周辺の空気が低温になり、その空気をダクト２９０を通じて貯蔵室内に循環させることで各貯蔵室が設定された温度帯まで冷却保持される。 At this time, the air around the evaporator becomes a low temperature due to the evaporating action, and the air is circulated in the storage chamber through the duct 290, so that each storage chamber is cooled and held to the set temperature zone.
また、真空断熱パネル２８０によって断熱箱体２０１の背面部からの熱侵入量は断熱材２０４のみの場合より少なくなる。 Further, the vacuum heat insulating panel 280 reduces the amount of heat intrusion from the back surface of the heat insulating box 201 compared to the case of the heat insulating material 204 alone.
更に、冷蔵庫本体２００の中で最も温度が低い蒸発器２２１やダクト２９０への熱侵入量を低減できるので、特に冷蔵庫本体２００の運転時の断熱性能が大幅に向上し、低温の空気がダクト２９０内を通気する際の受熱ロスを低減することができる。 Furthermore, since the heat penetration amount into the evaporator 221 and the duct 290 having the lowest temperature in the refrigerator main body 200 can be reduced, the heat insulation performance during the operation of the refrigerator main body 200 is greatly improved, and the low-temperature air is reduced to the duct 290. It is possible to reduce heat receiving loss when the inside is ventilated.
また、冷蔵室２０６と機械室２３０とを対向させることにより、冷凍温度帯の貯蔵室と対向させた場合に比べて、機械室２３０内の圧縮機２２０の運転時に発生する暖気と貯蔵室内との温度差が小さくなるので、貯蔵室内への熱侵入量を低減することができる。 Further, by facing the refrigerator compartment 206 and the machine room 230, the warm air generated during operation of the compressor 220 in the machine room 230 and the storage room are compared with the case where the refrigerator room 206 and the storage room are opposed to each other. Since the temperature difference becomes small, the amount of heat penetration into the storage chamber can be reduced.
また、圧縮機２２０と制御部２４０とを近傍に配置したことにより、電磁妨害も抑制できる。 In addition, by arranging the compressor 220 and the control unit 240 in the vicinity, electromagnetic interference can be suppressed.
特に本実施の形態のようにインバータ制御を行なう場合には、まず家庭用の交流電力を高圧の直流電力に変換し、再度電気的に交流電力に変換する際に圧縮機２２０の電圧などを数千分の１秒の間隔で制御しているため、わずかな電磁妨害でも誤動作や動作ロスにつながってしまう。 In particular, when inverter control is performed as in the present embodiment, first, the household AC power is converted into high-voltage DC power, and when the electrical power is again converted into AC power, the voltage of the compressor 220 is several. Since the control is performed at an interval of a thousandth of a second, even a slight electromagnetic interference leads to a malfunction or loss of operation.
したがって、電磁妨害対策は必須であるが近傍に配置することで対策範囲も狭くなり簡易な仕様とすることができる。 Therefore, electromagnetic interference countermeasures are essential, but by arranging them in the vicinity, the countermeasure range becomes narrow and simple specifications can be achieved.
このような対策を必要とするインバータ制御であるが、これにより貯蔵室の冷却状態に応じて圧縮機２２０の回転数を変更することが可能となるので、冷蔵庫本体２００の消費電力量を大幅に低減できることは言うまでもない。 Although it is inverter control that requires such measures, this makes it possible to change the number of revolutions of the compressor 220 according to the cooling state of the storage room, thereby greatly reducing the power consumption of the refrigerator main body 200. Needless to say, it can be reduced.
なお、本実施の形態は小型冷蔵庫としているので、前述の受熱ロス低減効果、消費電力量低減効果、電磁妨害の影響は実施の形態１よりも小さくなる。 Since the present embodiment is a small refrigerator, the effects of the heat loss reduction effect, power consumption reduction effect, and electromagnetic interference described above are smaller than those of the first embodiment.
しかしながら、受熱ロス低減効果と消費電力量低減効果については、実施の形態１と同様に、断熱箱体２０１の背面部に配置することで最も効率よく断熱性能を向上させることができ、かつ真空断熱パネル２８０を断熱箱体２０１の背面部に配置することで冷蔵庫本体２００の重心が背面側へ移動するので、重たい圧縮機２２０を断熱箱体２０１の上部に配置しても、冷蔵庫本体２００の転倒に対する安全性を増すことができる。 However, with respect to the heat loss reduction effect and the power consumption reduction effect, the heat insulation performance can be improved most efficiently by arranging the heat loss loss effect and the power consumption reduction effect on the back surface portion of the heat insulation box 201, and vacuum insulation. Since the center of gravity of the refrigerator main body 200 moves to the back side by arranging the panel 280 on the back surface of the heat insulating box 201, the refrigerator main body 200 is overturned even if the heavy compressor 220 is arranged on the top of the heat insulating box 201. The safety against this can be increased.
また、冷蔵室ドア２０６ａと冷凍室ドア２０７ａとを回転ドアとすることで、引出しドアと比較すると、ドアを開けた際の冷蔵庫本体２００の前側への重心移動を軽減できるので、転倒に対する安全性を更に増すことができる。 Moreover, since the refrigerator compartment door 206a and the freezer compartment door 207a are revolving doors, the movement of the center of gravity toward the front side of the refrigerator main body 200 when the door is opened can be reduced, so that the safety against falling is achieved. Can be further increased.
また、圧縮機２２０については、交流電力にて駆動する圧縮機より運転時の効率をやや悪化させても同等の冷凍能力を得ることができるので、圧縮機の駆動部の簡素化により軽量化することができ、転倒に対する安全性を更に増すことができる。 Further, the compressor 220 can be reduced in weight by simplification of the drive part of the compressor, since the same refrigeration capacity can be obtained even if the efficiency during operation is slightly worse than the compressor driven by AC power. And the safety against falls can be further increased.
また、機械室カバー２５０に排気口２５０ａを設けることで、実施の形態１と同様に機械室２３０内の熱と、万が一機械室２３０内で漏洩した冷媒とを機械室２３０内に滞留することなく、外気へ排気できる。 Further, by providing the exhaust port 250a in the machine room cover 250, the heat in the machine room 230 and the refrigerant leaked in the machine room 230 should not stay in the machine room 230 as in the first embodiment. Can exhaust to the outside air.
なお、本実施の形態では上面板２６０に通気口を設けないとしているが、小型冷蔵庫の上面に電子レンジなどの電気機器や非冷却食品を置く場合があり、万が一上面に飲料などの液体や小さいクズなどが機械室２３０内に入ると、圧縮機２２０や制御部２４０に悪影
響を及ぼす可能性があるので、できるだけ通気口は無いほうが望ましい。
In this embodiment, the top plate 260 is not provided with a vent, but an electric device such as a microwave oven or uncooled food may be placed on the top surface of the small refrigerator. If waste or the like enters the machine room 230, there is a possibility that the compressor 220 or the control unit 240 may be adversely affected.
更に小型冷蔵庫の場合は上面板２６０の高さ位置が大型冷蔵庫に比べるとユーザーの耳近傍にくるため、圧縮機２２０の運転音が通気口を設けることで大きく聞こえてしまうことも懸念されるので、その点からも通気口は無いほうが望ましい。 Furthermore, in the case of a small refrigerator, the height position of the top plate 260 is closer to the user's ear than in a large refrigerator, so there is a concern that the operation sound of the compressor 220 may be heard loudly by providing a vent. From this point, it is desirable that there is no vent hole.
どうしても通気口を設けなければならない場合は、できるだけ断熱箱体２０１の背面部に設け、さらに電子機器を置くスペースを確保した設置面を通気口より一段低く構成すれば液体やクズが入りにくくなり、使い勝手も悪化しない。 If it is absolutely necessary to provide a vent, if it is provided on the back of the heat insulating box 201 as much as possible, and the installation surface that secures the space for placing the electronic device is made one step lower than the vent, liquid and debris will not enter easily, Convenience does not deteriorate.
また、これらの問題を満足する場合は、上面板２６０が断熱箱体２０１の前側だけを覆い、機械室２３０の上面は機械室カバー２５０で形成することも可能であるが、上面板２６０と機械室カバー２５０との接合部にゴミなどが溜まりやすく、電子機器を置く設置面を確保するために、断熱箱体２０１を大きくしなくてはならない可能性もあるので注意が必要である。 If these problems are satisfied, the upper surface plate 260 may cover only the front side of the heat insulating box 201 and the upper surface of the machine room 230 may be formed by the machine room cover 250. Care must be taken because dust or the like tends to collect at the joint with the chamber cover 250 and the heat insulating box 201 may have to be enlarged in order to secure an installation surface on which the electronic device is placed.
以上のように、本実施の形態においては 断熱箱体２０１の背面部に真空断熱パネル２８０を配置することで、断熱箱体２０１の断熱性能が大幅に向上し、冷蔵庫本体２００の消費電力量を低減することができる。 As described above, in the present embodiment, by disposing the vacuum heat insulation panel 280 on the back surface of the heat insulation box 201, the heat insulation performance of the heat insulation box 201 is greatly improved, and the power consumption of the refrigerator main body 200 is reduced. Can be reduced.
また、圧縮機２２０と冷蔵室２０６との温度差が小さくなるので、冷蔵室２０６内への熱侵入量が少なくなり、更に冷蔵庫本体２００の消費電力量を低減することができる。 Moreover, since the temperature difference between the compressor 220 and the refrigerator compartment 206 is reduced, the amount of heat entering the refrigerator compartment 206 is reduced, and the power consumption of the refrigerator main body 200 can be further reduced.
また、機械室２３０内に圧縮機２２０と制御部２４０とを配置しているため、圧縮機２２０を直流電力を必要とするインバータ圧縮機としても、電磁妨害を受けたり通電時のロスが増大することも無いので、新たに電磁課題対策を行なう必要なくインバータ圧縮機を使用することで冷蔵庫本体２００の消費電力量を低減することができる。 In addition, since the compressor 220 and the control unit 240 are arranged in the machine room 230, even when the compressor 220 is an inverter compressor that requires DC power, it is subject to electromagnetic interference and loss during energization increases. Since there is nothing, the power consumption of the refrigerator main body 200 can be reduced by using an inverter compressor without newly taking countermeasures against electromagnetic problems.
更に、消費電力量に応じて真空断熱パネル２８０を追加廃止したり、圧縮機２２０を交流電力にて駆動する仕様に変更すればよいので、金型投資をして断熱箱体２０１を新規開発する必要も無い。 Furthermore, the heat insulation box 201 is newly developed by investing in a mold because the vacuum heat insulation panel 280 may be additionally abolished according to the power consumption or the compressor 220 may be changed to a specification driven by AC power. There is no need.
また、上面板２６０にて断熱箱体２０１の上面と機械室２３０の上面とを一体で覆うように構成したので、機械室２３０を断熱箱体２０１の背面上部に配置してもユーザーの使い勝手を悪化させること無く、更に断熱箱体２０１の奥行きを大きくする必要も無い。 In addition, since the upper surface plate 260 is configured to integrally cover the upper surface of the heat insulation box 201 and the upper surface of the machine room 230, even if the machine room 230 is disposed on the upper rear surface of the heat insulation box 201, user convenience is improved. There is no need to further increase the depth of the heat insulating box 201 without deteriorating.
また、冷凍サイクルを循環する冷媒に可燃性冷媒を用いても、万が一機械室２３０内で可燃性冷媒が漏洩した場合でも、制御部２４０傍で可燃性冷媒が漏洩するリスクを軽減することができ、冷蔵庫本体２００の安全性を確保できる。 In addition, even if a flammable refrigerant is used as the refrigerant circulating in the refrigeration cycle, even if the flammable refrigerant leaks in the machine room 230, the risk of the flammable refrigerant leaking near the control unit 240 can be reduced. The safety of the refrigerator body 200 can be ensured.
また、機械室２３０の少なくとも背面には機械室カバー２５０を備え、排気口２５０ａを少なくとも制御部２４０近傍は前記機械室カバー２５０の下部に設け、かつ圧縮機２２０近傍は機械室カバー２５０の上部に設けたことにより、可燃性冷媒が漏洩しても制御部２４０近傍に滞留することを防止できるので冷蔵庫本体２００の安全性を確保できる。 A machine room cover 250 is provided at least on the back of the machine room 230, an exhaust port 250 a is provided at least in the vicinity of the control unit 240 in the lower part of the machine room cover 250, and the vicinity of the compressor 220 is provided in the upper part of the machine room cover 250. By providing, since it can prevent staying in the control part 240 vicinity, even if a combustible refrigerant | coolant leaks, the safety | security of the refrigerator main body 200 is securable.
以上のように、本発明にかかる冷蔵庫は、金型投資や課題対策を行なうことなく、断熱箱体の断熱性能や冷蔵庫本体の消費電力量を大幅に変更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, the refrigerator according to the present invention can greatly change the heat insulation performance of the heat insulation box and the power consumption of the refrigerator main body without investing in molds or taking countermeasures. It can be applied to other uses.
２０，２００ 冷蔵庫本体
２１，２０１ 断熱箱体
２１ｂ，２０１ｂ 上凹部
２１ｃ，２０１ｃ 下凹部
２２，２０２ 内箱
２３，２０３ 外箱
２４，２０４ 断熱材
２９，２０６ 冷蔵室
３１ 第一の冷凍室
３２ 第二の冷凍室
３３ 野菜室
５０，２２０ 圧縮機
５０ａ，２２０ａ 吐出管
５０ｂ，２２０ｂ 吸入管
５１，２２１ 蒸発器
６０，２３０ 機械室
７０，２４０ 制御部
８０，２５０ 機械室カバー
８０ａ，２５０ａ 排気口
１００，２８０ 真空断熱パネル
２０７ 冷凍室
２６０ 上面板
20,200 Refrigerator main body 21,201 Heat insulation box 21b, 201b Upper recess 21c, 201c Lower recess 22, 202 Inner box 23, 203 Outer box 24, 204 Heat insulation material 29, 206 Refrigeration room 31 First freezer room 32 Second Freezer room 33 Vegetable room 50,220 Compressor 50a, 220a Discharge pipe 50b, 220b Intake pipe 51,221 Evaporator 60,230 Machine room 70,240 Control unit 80,250 Machine room cover 80a, 250a Exhaust port 100,280 Vacuum insulation panel 207 Freezer compartment 260 Top plate
Claims (4)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011160572A JP5899406B2 (en) | 2011-07-22 | 2011-07-22 | refrigerator |
| EP12818386.0A EP2735826B1 (en) | 2011-07-22 | 2012-07-04 | Refrigerator |
| PCT/JP2012/004323 WO2013014867A1 (en) | 2011-07-22 | 2012-07-04 | Refrigerator |
| CN201280036404.5A CN103703331A (en) | 2011-07-22 | 2012-07-04 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011160572A JP5899406B2 (en) | 2011-07-22 | 2011-07-22 | refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2013024490A JP2013024490A (en) | 2013-02-04 |
| JP5899406B2 true JP5899406B2 (en) | 2016-04-06 |
Family
ID=47600745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011160572A Active JP5899406B2 (en) | 2011-07-22 | 2011-07-22 | refrigerator |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2735826B1 (en) |
| JP (1) | JP5899406B2 (en) |
| CN (1) | CN103703331A (en) |
| WO (1) | WO2013014867A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6163321B2 (en) * | 2013-02-27 | 2017-07-12 | ホシザキ株式会社 | Cooling system |
| US9759479B2 (en) * | 2015-10-22 | 2017-09-12 | Whirlpool Corporation | Appliance modular system for incorporating a pantry compartment within an appliance |
| CN109073313B (en) * | 2016-05-13 | 2020-10-27 | 松下知识产权经营株式会社 | Refrigerator with a door |
| GB2550360B (en) | 2016-05-16 | 2018-10-24 | Aerofoil Energy Ltd | Improvements to open display refrigerators |
| JP2019027716A (en) * | 2017-08-01 | 2019-02-21 | パナソニックＩｐマネジメント株式会社 | refrigerator |
| CN113883797A (en) * | 2020-07-02 | 2022-01-04 | 日立环球生活方案株式会社 | Refrigerator with a door |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06147723A (en) * | 1992-11-09 | 1994-05-27 | Hitachi Ltd | Refrigerator |
| US6735976B2 (en) * | 2002-08-31 | 2004-05-18 | Samsung Electronics Co., Ltd | Refrigerator |
| TWI325949B (en) * | 2004-02-09 | 2010-06-11 | Sanyo Electric Co | Refrigerant system |
| JP3741140B2 (en) * | 2004-03-17 | 2006-02-01 | 松下電器産業株式会社 | refrigerator |
| JP2005332024A (en) * | 2004-05-18 | 2005-12-02 | Matsushita Electric Ind Co Ltd | Vending machine |
| JP4244862B2 (en) * | 2004-05-18 | 2009-03-25 | パナソニック株式会社 | refrigerator |
| JP3722151B1 (en) * | 2004-06-09 | 2005-11-30 | 松下電器産業株式会社 | refrigerator |
| JP2006098042A (en) * | 2004-08-30 | 2006-04-13 | Matsushita Electric Ind Co Ltd | Refrigerator |
| CN100513948C (en) * | 2004-09-13 | 2009-07-15 | 松下电器产业株式会社 | Refrigerator warehouse |
| JP2007017044A (en) * | 2005-07-06 | 2007-01-25 | Matsushita Electric Ind Co Ltd | Refrigerator |
| CN2884080Y (en) * | 2005-08-02 | 2007-03-28 | 松下电器产业株式会社 | Refrigerator |
| JP2007064590A (en) * | 2005-09-02 | 2007-03-15 | Matsushita Electric Ind Co Ltd | Refrigerator |
| JP2007187328A (en) * | 2006-01-11 | 2007-07-26 | Hitachi Appliances Inc | Refrigerator |
| CN101196360B (en) * | 2006-12-04 | 2011-01-26 | 海尔集团公司 | Cold storage container with homogeneous refrigerating temperature |
| JP4695663B2 (en) * | 2008-03-19 | 2011-06-08 | 日立アプライアンス株式会社 | refrigerator |
| BR112012014435B8 (en) * | 2009-12-16 | 2021-06-01 | Panasonic Corp | cooler |
-
2011
- 2011-07-22 JP JP2011160572A patent/JP5899406B2/en active Active
-
2012
- 2012-07-04 WO PCT/JP2012/004323 patent/WO2013014867A1/en active Application Filing
- 2012-07-04 EP EP12818386.0A patent/EP2735826B1/en not_active Not-in-force
- 2012-07-04 CN CN201280036404.5A patent/CN103703331A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN103703331A (en) | 2014-04-02 |
| EP2735826A4 (en) | 2015-05-27 |
| WO2013014867A1 (en) | 2013-01-31 |
| EP2735826B1 (en) | 2017-08-30 |
| JP2013024490A (en) | 2013-02-04 |
| EP2735826A1 (en) | 2014-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5899406B2 (en) | refrigerator | |
| CN107110589B (en) | Refrigerator with a door | |
| US11002474B2 (en) | Refrigerator | |
| EP2431687B1 (en) | Refrigerator | |
| JP2013050267A (en) | Refrigerator | |
| WO2011114656A1 (en) | Refrigerator | |
| JP5932732B2 (en) | refrigerator | |
| WO2005088214A1 (en) | Refrigerator | |
| JP4967510B2 (en) | refrigerator | |
| JP2008128516A (en) | Refrigerator | |
| JP4102285B2 (en) | refrigerator | |
| JP4270030B2 (en) | refrigerator | |
| JP4552800B2 (en) | refrigerator | |
| JP2019132568A (en) | refrigerator | |
| JP2014085060A (en) | Refrigerator | |
| JP5671705B2 (en) | refrigerator | |
| JP2004301433A (en) | Refrigerator | |
| JP4244862B2 (en) | refrigerator | |
| CN219913612U (en) | Refrigerator with a refrigerator body | |
| JP2012002483A (en) | Refrigerator-freezer | |
| JP2014059112A (en) | Refrigerator | |
| JP2010038483A (en) | Refrigerator | |
| JP4215727B2 (en) | refrigerator | |
| JP2017009142A (en) | refrigerator | |
| JP4179212B2 (en) | refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20140708 |
|
| RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20140807 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20141007 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20150428 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150625 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20151104 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20151117 |
|
| R151 | Written notification of patent or utility model registration |
Ref document number: 5899406 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |