JP4151736B1 - refrigerator - Google Patents
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- JP4151736B1 JP4151736B1 JP2007289496A JP2007289496A JP4151736B1 JP 4151736 B1 JP4151736 B1 JP 4151736B1 JP 2007289496 A JP2007289496 A JP 2007289496A JP 2007289496 A JP2007289496 A JP 2007289496A JP 4151736 B1 JP4151736 B1 JP 4151736B1
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- cold air
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- spraying means
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- 239000003595 mist Substances 0.000 claims abstract description 198
- 238000005507 spraying Methods 0.000 claims abstract description 154
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 239000007921 spray Substances 0.000 claims description 14
- 238000000889 atomisation Methods 0.000 claims description 7
- 235000013311 vegetables Nutrition 0.000 abstract description 217
- 235000013305 food Nutrition 0.000 abstract description 25
- 230000005068 transpiration Effects 0.000 abstract description 16
- 238000001816 cooling Methods 0.000 description 106
- 238000005192 partition Methods 0.000 description 50
- 238000005057 refrigeration Methods 0.000 description 33
- 238000007710 freezing Methods 0.000 description 29
- 230000008014 freezing Effects 0.000 description 29
- 239000006260 foam Substances 0.000 description 18
- 238000009833 condensation Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 11
- 238000007664 blowing Methods 0.000 description 10
- 239000011810 insulating material Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 10
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 8
- 235000013361 beverage Nutrition 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000011358 absorbing material Substances 0.000 description 4
- 239000004794 expanded polystyrene Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 2
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 2
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
【課題】収納食品からの蒸散水分を効率良く回収し、収納容器内を十分に加湿できる冷蔵庫を提供する。
【解決手段】野菜室用吐出口４５から吐出された冷気を下段収納容器６４内に導入し、ミスト噴霧手段６７近傍に設けられた冷気流出部である凹部６９から流出させ、収納容器内から収納容器外へ漏れ出る湿気を効率良く回収し、ミスト噴霧手段６７に結露させることができ、収納容器内を十分に加湿し、野菜の鮮度を維持することができるので、より保鮮性の高い高品質の冷蔵庫を提供することができる。
【選択図】図３A refrigerator capable of efficiently recovering transpiration moisture from stored food and sufficiently humidifying the inside of the storage container is provided.
Cool air discharged from a vegetable room discharge port 45 is introduced into a lower storage container 64 and is discharged from a recess 69 which is a cool air outflow portion provided in the vicinity of a mist spraying means 67 and stored from within the storage container. Humidity that leaks out of the container can be efficiently collected and condensed on the mist spraying means 67, and the inside of the storage container can be sufficiently humidified to maintain the freshness of the vegetables. A refrigerator can be provided.
[Selection] Figure 3
Description
本発明は多湿に維持された貯蔵室を備える冷蔵庫に関するものである。 The present invention relates to a refrigerator provided with a storage room maintained at high humidity.
野菜の鮮度低下の影響因子としては、温度、湿度、環境ガス、微生物、光などが挙げられる。野菜は生き物であり、呼吸と蒸散作用が行われており、鮮度を維持するには呼吸と蒸散作用の抑制が必要となる。低温障害を起こす野菜など一部の野菜を除き、多くの野菜は低温で呼吸が抑制され、高湿により蒸散を防止することができる。近年、家庭用冷蔵庫では野菜の保存を目的とし、密閉された野菜専用容器が設けられ、野菜を適正な温度に冷却するとともに、庫内を高湿化し、野菜の蒸散を抑制するよう制御されているものがある。また、庫内高湿化の手段として、ミストを噴霧する手段を用いたものもある。 Factors that affect the decline in freshness of vegetables include temperature, humidity, environmental gas, microorganisms, and light. Vegetables are living creatures that are breathing and transpiration, and in order to maintain freshness, it is necessary to suppress respiration and transpiration. Except for some vegetables, such as those that cause chilling disorders, respiration is suppressed at low temperatures, and transpiration can be prevented by high humidity. In recent years, refrigerators for home use have been designed to preserve vegetables, and are equipped with sealed vegetable containers that are controlled to cool vegetables to an appropriate temperature and to increase the humidity in the cabinet to suppress transpiration of vegetables. There is something. In addition, as a means for increasing the humidity in the cabinet, there is also a means that uses a means for spraying mist.
従来、この種のミスト噴霧機能を備えた冷蔵庫としては、吸湿材を超音波発振器にて振動させミストを生成噴霧し野菜室内を加湿し、野菜の蒸散を抑制しているものがある（例えば、特許文献１参照）。 Conventionally, as a refrigerator equipped with this type of mist spraying function, there is a refrigerator that suppresses the transpiration of vegetables by vibrating a hygroscopic material with an ultrasonic oscillator to generate and spray mist to humidify the vegetable compartment (for example, Patent Document 1).
図６と図７は、特許文献１に記載された従来の冷蔵庫を示すものである。 6 and 7 show a conventional refrigerator described in Patent Document 1. FIG.
図６に示すように、冷蔵庫本体１には冷蔵室２が設けられており、その前面開口部は回転扉３にて閉塞されている。また、野菜室４は冷蔵室２の下方に設けられており、その前面開口部は引出し扉５にて閉塞されている。また、野菜室４の下方には冷凍室６が設けられており、その前面開口部は引出し扉７にて閉塞されている。冷蔵室２と野菜室４は仕切板８にて仕切られている。仕切板８には冷蔵室２から野菜室４に冷気を流入させるための孔９が設けられている。引出し扉５には野菜容器１０が取付けられており、引出し扉５の開閉に伴って引出される。野菜容器１０の上部には野菜容器蓋１１が配置されており、引出し扉５を閉じた時に野菜容器１０を閉塞する。この時、野菜容器蓋１１は冷蔵庫本体側に固定されている。野菜容器蓋１１には、超音波加湿手段１２が設けられており、野菜容器１０の内部に水分を蒸散させる。冷蔵室２には冷蔵温度帯室用の冷却器１３が備えられており、ファン１４の運転により冷気を循環させ、冷蔵室２及び野菜室４を冷却する。また、図示省略したが、この冷蔵庫は、冷凍温度帯室用の冷却器も備え、冷凍室６を冷却している。 As shown in FIG. 6, the refrigerator main body 1 is provided with a refrigerating chamber 2, and the front opening is closed by a rotary door 3. The vegetable compartment 4 is provided below the refrigerator compartment 2, and its front opening is closed by a drawer door 5. A freezer compartment 6 is provided below the vegetable compartment 4, and the front opening is closed by a drawer door 7. The refrigerator compartment 2 and the vegetable compartment 4 are partitioned by a partition plate 8. The partition plate 8 is provided with a hole 9 for allowing cold air to flow from the refrigerator compartment 2 into the vegetable compartment 4. A vegetable container 10 is attached to the drawer door 5 and is pulled out as the drawer door 5 is opened and closed. A vegetable container lid 11 is disposed on the vegetable container 10 and closes the vegetable container 10 when the drawer door 5 is closed. At this time, the vegetable container lid 11 is fixed to the refrigerator main body side. The vegetable container lid 11 is provided with ultrasonic humidification means 12 to evaporate moisture inside the vegetable container 10. The refrigerator compartment 2 is provided with a cooler 13 for the refrigerator compartment, and cools the refrigerator compartment 2 and the vegetable compartment 4 by circulating cold air by operating the fan 14. Although not shown, this refrigerator also includes a cooler for a freezing temperature zone and cools the freezing chamber 6.
また、図７に示すように超音波加湿手段１２は、野菜容器蓋１１の孔１５に設けられ、吸水材１６と超音波発振器１７とから構成される。 In addition, as shown in FIG. 7, the ultrasonic humidifying means 12 is provided in the hole 15 of the vegetable container lid 11 and includes a water absorbing material 16 and an ultrasonic oscillator 17.
以上のように構成された冷蔵庫において、以下その動作について説明する。 The operation of the refrigerator configured as described above will be described below.
冷蔵室２・野菜室４の温度が高くなると、冷却器１３には冷媒が流され、ファン１４が駆動される。これにより、冷却器１３の周辺の冷気は、図６に矢印で示されるように、冷蔵室２、孔９、野菜室４を介して冷却器１３に戻る。これにより、冷蔵室２及び野菜室４が冷却される。この状態を冷却モードという。 When the temperature of the refrigerator compartment 2 / vegetable compartment 4 rises, the refrigerant flows through the cooler 13 and the fan 14 is driven. As a result, the cool air around the cooler 13 returns to the cooler 13 through the refrigerator compartment 2, the holes 9, and the vegetable compartment 4, as indicated by arrows in FIG. Thereby, the refrigerator compartment 2 and the vegetable compartment 4 are cooled. This state is called a cooling mode.
次に、冷蔵室２・野菜室４がほぼ冷却されると、冷却器１３への冷媒の供給を停止する。しかし、ファン１４は続けて運転する。これにより、冷却器１３に付着した霜の溶解にて、冷蔵室２・野菜室４が加湿される。この状態を加湿モード（所謂「潤い運転」）という。 Next, when the refrigerator compartment 2 and the vegetable compartment 4 are almost cooled, the supply of the refrigerant to the cooler 13 is stopped. However, the fan 14 continues to operate. Thereby, the refrigerator compartment 2 and the vegetable compartment 4 are humidified by melt | dissolution of the frost adhering to the cooler 13. FIG. This state is referred to as a humidification mode (so-called “humidity operation”).
この加湿モードを所定時間（数分間）継続したのちに、ファン１４を止めて、運転停止モードとなる。 After the humidification mode is continued for a predetermined time (several minutes), the fan 14 is stopped and the operation stop mode is set.
この後、冷蔵室２・野菜室４の温度が高くなると、再び冷却モードとなる。 After this, when the temperature of the refrigerator compartment 2 / vegetable compartment 4 increases, the cooling mode is entered again.
次に超音波加湿手段１２について説明する。 Next, the ultrasonic humidifying means 12 will be described.
吸水材１６は、シリカゲル・ゼオライト・活性炭等の吸水性の材料からなる。従って、前述の加湿モード時には、流れる空気中の水分を吸着する。そして、冷却モード中の後半において、超音波発振器１７を駆動する。これにより、吸水材１６中の水分が外部に排出される。これにより、野菜容器１０の内部が加湿される。尚、冷却モード中の後半において、超音波発振器１７を駆動するのは、野菜室４の湿度低下による乾燥を防止することを目的としている。
上記従来の構成では、野菜容器１０は野菜容器蓋１１にてその上面を閉塞されており、加湿モード時（潤い運転時）に湿気を含んだ冷気が野菜室４内を循環したとしても、野菜容器１０内を直接的に加湿することは困難である。また、従来の構成では、超音波発振器１７への水の供給源として、冷蔵室２内の空気中の水分と野菜室４内の収納容器１０以外の空間の水分を用いることになるが、これらの空間中にある水分はその多くがドア開閉により庫内に流入した暖湿気に由来するものであり、水分を多く含んだ野菜が収納される収納容器１０内に比べて水分量が少なく、必ずしも十分な加湿ができるとは限らない。 In the above-described conventional configuration, the vegetable container 10 is closed at the upper surface by the vegetable container lid 11, and even if cold air containing moisture circulates in the vegetable compartment 4 during the humidification mode (during wet operation), the vegetable container 10 It is difficult to directly humidify the inside of the container 10. In the conventional configuration, the moisture in the air in the refrigerator compartment 2 and the moisture in the space other than the storage container 10 in the vegetable compartment 4 are used as the water supply source to the ultrasonic oscillator 17. Most of the moisture in the space is derived from warm moisture that flows into the cabinet by opening and closing the door, and the amount of moisture is less than in the storage container 10 in which vegetables containing a lot of moisture are stored. Sufficient humidification is not always possible.
本発明は、上記従来の課題を解決するもので、十分な加湿を行うことの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 fully humidify.
上記従来の課題を解決するために、本発明の冷蔵庫は、冷蔵庫本体が貯蔵室と、前記貯蔵室に備えられた収納容器と、前記貯蔵室の前面開口部を閉塞する扉と、空気中の水分を結露させて前記貯蔵室内にミストとして噴霧するミスト噴霧手段とを備え、前記貯蔵室内において、前記収納容器内から前記収納容器外に流出する冷気の量が最も多い位置に前記ミスト噴霧手段を設けたものである。 In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a refrigerator body having a storage chamber, a storage container provided in the storage chamber, a door for closing the front opening of the storage chamber, Mist spraying means for condensing moisture and spraying as mist in the storage chamber, and in the storage chamber, the mist spraying means is located at a position where the amount of cold air flowing out of the storage container from the storage container is the largest. It is provided.
これによって、収納容器内から収納容器外へ漏れ出る湿気を効率良く回収し、ミスト噴霧手段に結露させることができ、この結露水を微細ミストに変えて、拡散性の高い微細ミストを再度収納容器内に返すことができ、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 As a result, moisture leaking from the inside of the storage container to the outside of the storage container can be efficiently collected and condensed on the mist spraying means. This condensed water is changed to a fine mist, and the highly diffusible fine mist is again stored in the storage container. The inside of the storage container can be sufficiently humidified with a fine mist, and the freshness of the vegetables can be maintained.
本発明の冷蔵庫は、収納容器内を十分に加湿し、野菜の鮮度を維持することができるので、より保鮮性の高い高品質の冷蔵庫を提供することができる。 Since the refrigerator of this invention can fully humidify the inside of a storage container and can maintain the freshness of vegetables, it can provide a high quality refrigerator with higher freshness.
請求項１に記載の発明は 冷蔵庫本体は貯蔵室と、前記貯蔵室に備えられた収納容器と、前記貯蔵室の前面開口部を閉塞する扉と、空気中の水分を結露させて前記貯蔵室内にミストとして噴霧するミスト噴霧手段とを備え、前記ミスト噴霧手段の噴霧口は前記収納容器と対向する位置に備えられるとともに前記ミスト噴霧手段は前記収納容器内から前記収納容器外に流出する冷気の量が多い位置に備えられ、前記ミスト噴霧手段によって前記収納容器内の水分を結露させた水をミストに変えて再び前記収納容器自体に返すものである。 According to the first aspect of the present invention, the refrigerator body includes a storage room, a storage container provided in the storage room, a door that closes a front opening of the storage room, and moisture in the air is condensed to form the storage room. Mist spraying means for spraying as mist, and a spray port of the mist spraying means is provided at a position facing the storage container, and the mist spraying means It is provided at a position where the amount is large , and the water in which the moisture in the storage container is condensed by the mist spraying means is changed to mist and returned to the storage container itself .
これによって、収納容器内から収納容器外へ漏れ出る湿気を効率良く回収し、ミスト噴霧手段に結露させることができ、この結露水を微細ミストに変えて、拡散性の高い微細ミストを再度収納容器内に返すことができ、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 As a result, moisture leaking from the inside of the storage container to the outside of the storage container can be efficiently collected and condensed on the mist spraying means. This condensed water is changed to a fine mist, and the highly diffusible fine mist is again stored in the storage container. The inside of the storage container can be sufficiently humidified with a fine mist, and the freshness of the vegetables can be maintained.
請求項２に記載の発明は、請求項１に記載の発明において、収納容器が、ミスト噴霧手段近傍に冷気流出部を有するものである。 According to a second aspect of the present invention, in the first aspect of the present invention, the storage container has a cold air outflow portion in the vicinity of the mist spraying means.
これによって、収納容器の形状を工夫することで、収納容器内を循環する冷気をミスト噴霧手段近傍から多量に流出させやすくすることにより、ミスト噴霧手段の周辺をより高湿化することができ、湿気を効率良く回収し、ミスト噴霧手段に結露させることができ、この結露水を微細ミストに変えて、拡散性の高い微細ミストを再度収納容器内に返すことができ、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 Thereby, by devising the shape of the storage container, it is possible to make the surrounding air around the mist spraying means more highly humid by facilitating a large amount of cool air circulating in the storage container from the vicinity of the mist spraying means, Humidity can be efficiently collected and condensed on the mist spraying means. This condensed water can be changed to fine mist, and the highly diffusible fine mist can be returned to the storage container again. To fully humidify and maintain the freshness of the vegetables.
請求項３に記載の発明は、請求項２に記載の発明において、収納容器が、上段収納容器と下段収納容器とからなり、冷気流出部を前記上段収納容器と下段収納容器の間隙で構成したものである。 The invention according to claim 3 is the invention according to claim 2, wherein the storage container is composed of an upper storage container and a lower storage container, and the cold air outflow portion is configured by a gap between the upper storage container and the lower storage container. Is.
これによって、下段収納容器内の湿気をミスト噴霧手段近傍から多量に流出しやすくすることにより、ミスト噴霧手段の周辺をより高湿化することができ、湿気を効率良く回収し、ミスト噴霧手段に結露させることができ、この結露水を微細ミストに変えて、拡散性の高い微細ミストを再度収納容器内に返すことができ、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 As a result, the moisture in the lower storage container can easily flow out from the vicinity of the mist spraying means in a large amount, so that the vicinity of the mist spraying means can be further humidified, and the moisture can be efficiently recovered and used as the mist spraying means. Condensation can be done, this condensed water can be changed to fine mist, fine mist with high diffusibility can be returned to the storage container again, and the storage container is fully humidified with fine mist to maintain the freshness of vegetables can do.
請求項４に記載の発明は、請求項２または３に記載の発明において、冷気流出部を、収納容器の上端に設けた凹部で構成したものである。 The invention according to claim 4 is the invention according to claim 2 or 3, wherein the cold air outflow portion is constituted by a concave portion provided at the upper end of the storage container.
これによって、収納容器の形状を工夫する際に、簡単な構成で冷気流出部を構成することができ、下段収納容器内の湿気をミスト噴霧手段近傍から多量に流出しやすくすることにより、ミスト噴霧手段の周辺をより高湿化することができ、湿気を効率良く回収し、ミスト噴霧手段に結露させることができ、この結露水を微細ミストに変えて、拡散性の高い微細ミストを再度収納容器内に返すことができ、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 Thus, when devising the shape of the storage container, the cold air outflow portion can be configured with a simple configuration, and the mist spraying by making it easy to flow out a large amount of moisture in the lower storage container from the vicinity of the mist spraying means. The surroundings of the means can be further humidified, moisture can be efficiently recovered and condensed on the mist spraying means, this condensed water is changed to fine mist, and the highly diffusible fine mist is again stored in the container The inside of the storage container can be sufficiently humidified with a fine mist, and the freshness of the vegetables can be maintained.
請求項５に記載の発明は、請求項１から４のいずれか一項に記載の発明に加え、前記ミスト噴霧手段に静電霧化方式を用いたものであり、粒子径数ｎｍから数μｍの微細なミストを発生させることができ、また噴霧したミストがマイナスの電荷を帯びることで、より野菜等への付着率を向上させることができ、野菜の鮮度を維持することができる。 In addition to the invention described in any one of claims 1 to 4, the invention described in claim 5 uses an electrostatic atomization method for the mist spraying means, and has a particle diameter of several nm to several μm. As the sprayed mist has a negative charge, the adhesion rate to vegetables and the like can be further improved, and the freshness of the vegetables can be maintained.
以下、本発明の冷蔵庫の実施の形態について、図面を参照しながら説明するが、従来例または先に説明した実施の形態と同一構成については同一符号を付して、その詳細な説明は省略する。なお、この実施の形態によってこの発明が限定されるものではない。 Hereinafter, embodiments of the refrigerator of the present invention will be described with reference to the drawings, but the same reference numerals are given to the same configurations as those of the conventional example or the embodiment described above, and detailed description thereof will be omitted. . The present invention is not limited to the embodiments.
（実施の形態１）
図１は、本発明の実施の形態１における冷蔵庫の冷蔵庫本体の正面図である。図２は、同実施の形態における冷蔵庫の縦断面図である。図３は、同実施の形態の冷蔵庫における貯蔵室内を示す斜視図である。
(Embodiment 1)
FIG. 1 is a front view of the refrigerator main body of the refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a longitudinal sectional view of the refrigerator in the same embodiment. FIG. 3 is a perspective view showing a storage room in the refrigerator according to the embodiment.
図１、図２、図３に示すように、冷蔵庫本体１は、外箱１８と、内箱１９と、外箱１８と内箱１９とで形成される空間に発泡充填される硬質発泡ウレタンなどの発泡断熱材２０とからなり、周囲と断熱され、複数の貯蔵室に区分されている。最上段に第一の貯蔵室としての冷蔵室２１、その冷蔵室２１の下部に第四の貯蔵室としての切替室２２と第五の貯蔵室としての製氷室２３が横並びに設けられ、その切替室２２と製氷室２３の下部に第二の貯蔵室としての野菜室２４、そして最下部に第三の貯蔵室としての冷凍室２５が配置される構成となっている。 As shown in FIGS. 1, 2, and 3, the refrigerator body 1 includes an outer box 18, an inner box 19, a hard foam urethane that is foam-filled in a space formed by the outer box 18 and the inner box 19, and the like. The foam insulation material 20 is insulated from the surroundings and divided into a plurality of storage rooms. A refrigeration room 21 as a first storage room is provided at the top, and a switching room 22 as a fourth storage room and an ice making room 23 as a fifth storage room are provided side by side at the lower part of the refrigeration room 21. A vegetable room 24 as a second storage room is disposed below the chamber 22 and the ice making room 23, and a freezer room 25 as a third storage room is disposed at the bottom.
冷蔵室２１は冷蔵保存のために凍らない温度を下限に通常１℃〜５℃としている。また、野菜室２４は冷蔵室２１と同等もしくは若干高い温度設定の２℃〜７℃とすることが多い。低温にするほど葉野菜の鮮度を長期間維持することが可能である。冷凍室２５は冷凍温度帯に設定されており、冷凍保存のために通常−２２℃〜−１５℃で設定されているが、冷凍保存状態の向上のために、例えば−３０℃や−２５℃の低温で設定されることもある。 The refrigerator compartment 21 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage. In addition, the vegetable room 24 is often set to 2 ° C. to 7 ° C. which is the same as or slightly higher than the refrigerated room 21. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The freezer compartment 25 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature.
切替室２２は、１℃〜５℃で設定される冷蔵、２℃〜７℃で設定される野菜、通常−２２℃〜−１５℃で設定される冷凍の温度帯以外に、冷蔵温度帯から冷凍温度帯の間で予め設定された温度帯に切り替えることができる。例えば、ソフト冷凍（概ね−１２℃〜−６℃程度）、パーシャルフリージング（概ね−５℃〜−１℃程度）、チルド（概ね−１℃〜１℃程度）等の冷蔵と冷凍の間の温度帯である。切替室２２は製氷室２３に並設された独立扉を備えた貯蔵室であり、引き出し式の扉を備えることが多い。 The switching chamber 22 is from a refrigeration temperature zone, in addition to refrigeration set at 1 ° C. to 5 ° C., vegetables set at 2 ° C. to 7 ° C., and freezing temperature zones normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature zone between the freezing temperature zones. For example, temperature between refrigeration and freezing such as soft freezing (approximately -12 ° C to -6 ° C), partial freezing (approximately -5 ° C to -1 ° C), chilled (approximately -1 ° C to 1 ° C) It is a belt. The switching chamber 22 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 23, and is often provided with a drawer-type door.
なお、本実施の形態では切替室２２を冷蔵、冷凍の温度帯までを含めた貯蔵室としているが、冷蔵は冷蔵室２１、野菜室２４、冷凍は冷凍室２５に委ねて、冷蔵と冷蔵の内間の上記温度帯のみの切り替えに特化した貯蔵室としてももちろん構わない。 In the present embodiment, the switching room 22 is a storage room including the refrigeration and freezing temperature zones. However, the refrigeration is performed in the refrigeration room 21, the vegetable room 24, and the freezing is performed in the freezing room 25. Of course, the storage room may be specialized for switching only the above temperature range.
製氷室２３は、冷蔵室２１内の貯水タンク（図示せず）から送られた水で室内上部に設けられた自動製氷機（図示せず）で氷を作り、室内下部に配置した貯氷容器（図示せず）に貯蔵しておくスペースであり、切替室２２に並設された間口の小さい独立扉を備えた貯蔵室であり、引き出し式の扉を備えることが多い。 The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 21, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the switching room 22, and often has a drawer-type door.
冷蔵庫本体１の天面部は冷蔵庫の背面方向に向かって階段状に凹みを設けた形状であり、この階段状の凹部に機械室２６を形成して圧縮機２７、水分除去を行うドライヤ（図示せず）等の冷凍サイクルの高圧側の構成部品が収納されている。すなわち、圧縮機２７を配設する機械室２６は、冷蔵室２１内の最上部の後方領域に食い込んで形成されることになる。手が届きにくくデッドスペースとなっていた冷蔵庫本体１の最上部の貯蔵室の後方領域に機械室２６を設けて圧縮機２７を配置することにより、従来の冷蔵庫で、使用者が使い易い冷蔵庫本体１の最下部にあった機械室のスペースを貯蔵室容量として有効に転化することができ、収納性や使い勝手を大きく改善することができる。 The top surface portion of the refrigerator main body 1 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 26 is formed in the stepped recess portion to form a compressor 27 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 26 in which the compressor 27 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 21. A refrigerator main body that is easy to use by a conventional refrigerator by providing a machine room 26 in the rear region of the uppermost storage room of the refrigerator main body 1 that has been difficult to reach and is a dead space. The space in the machine room at the bottom of 1 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.
なお、本実施の形態における、以下に述べる発明の要部に関する事項は、従来一般的であった冷蔵庫本体１の最下部の貯蔵室の後方領域に機械室を設けて圧縮機２７を配置するタイプの冷蔵庫に適用しても構わない。 In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 27 is disposed by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 1 that has been conventionally common. It may be applied to other refrigerators.
野菜室２４と冷凍室２５の背面には冷却室２８が設けられ、冷却室２８は断熱性を有する第一の冷却ダクト２９により野菜室２４及び冷凍室２５から仕切られている。冷却室２８内には、代表的なものとしてフィンアンドチューブ式の冷却器３０が配設されており、冷却器３０の上部空間には強制対流方式により冷却器３０で冷却した冷気を冷蔵室２１、切替室２２、製氷室２３、野菜室２４、冷凍室２５に送風する冷却ファン３１が配置され、冷却器３０の下部空間には冷却時に冷却器３０や冷却ファン３１に付着する霜を除霜する装置としてのガラス管製のラジアントヒータ３２が設けられている。 A cooling room 28 is provided on the back of the vegetable room 24 and the freezing room 25, and the cooling room 28 is partitioned from the vegetable room 24 and the freezing room 25 by a first cooling duct 29 having heat insulation properties. In the cooling chamber 28, a fin-and-tube type cooler 30 is disposed as a typical example. In the upper space of the cooler 30, the cold air cooled by the cooler 30 by the forced convection method is stored in the refrigerating chamber 21. A cooling fan 31 that blows air to the switching chamber 22, the ice making chamber 23, the vegetable chamber 24, and the freezing chamber 25 is disposed, and frost that adheres to the cooler 30 and the cooling fan 31 during cooling is defrosted in the lower space of the cooler 30. A radiant heater 32 made of a glass tube is provided as an apparatus for performing the above operation.
第一の冷却ダクト２９の外周には冷気、水漏れがないように、例えば軟質フォーム等のシール材が貼り付けられている。冷凍室２５と野菜室２４を仕切る第一の仕切壁３３は発泡ポリスチレン等の断熱材で成形され取り外し可能である。 For example, a sealing material such as flexible foam is attached to the outer periphery of the first cooling duct 29 so as not to cause cold air and water leakage. The first partition wall 33 that partitions the freezer compartment 25 and the vegetable compartment 24 is formed of a heat insulating material such as expanded polystyrene and is removable.
切替室２２、製氷室２３と野菜室２４を仕切る第二の仕切壁３４は、側面断面から見て略Ｌ字形の第二の仕切壁上板３５と平板状の第二の仕切壁下板３６で外郭を構成され、第二の仕切壁３４の内部は硬質発泡ウレタンなどの発泡断熱材２０が発泡充填されている。この時、前述したように野菜室２４の上方には野菜室２４よりも低い温度に調整された切替室２２と製氷室２３が配置されており、野菜室２４は上方から間接的に冷却され第二の仕切壁下板３６は冷却板として機能する。 The second partition wall 34 that divides the switching chamber 22, the ice making chamber 23, and the vegetable chamber 24 includes a substantially L-shaped second partition wall upper plate 35 and a flat plate-like second partition wall lower plate 36 as viewed from the side cross section. The second partition wall 34 is filled with foam heat insulating material 20 such as hard foam urethane. At this time, as described above, the switching chamber 22 and the ice making chamber 23 adjusted to a temperature lower than that of the vegetable chamber 24 are disposed above the vegetable chamber 24, and the vegetable chamber 24 is indirectly cooled from above and is secondly cooled. The second partition wall lower plate 36 functions as a cooling plate.
略Ｌ字形の第二の仕切壁上板３５の背面には、発泡ポリスチレン等の断熱材で成形された背面仕切壁３７、冷蔵室２１と切替室２２、製氷室２３を冷却するための冷気が送風される風路を形成した第二の冷却ダクト３８が設けられ、内部には冷蔵室２１と切替室２２の冷気の流れをそれぞれ調節するダンパー装置としてのツインダンパー３９が設けられており、冷蔵室２１と切替室２２の冷気の流れをそれぞれ調節するダンパー装置をツインダンパー化することにより収容スペースのコンパクト化とコスト削減を図っている。 On the back surface of the substantially L-shaped second partition wall upper plate 35, there is cold air for cooling the back partition wall 37 formed of a heat insulating material such as expanded polystyrene, the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23. A second cooling duct 38 that forms an air passage to be blown is provided, and a twin damper 39 as a damper device that adjusts the flow of the cold air in the refrigerating chamber 21 and the switching chamber 22 is provided in the inside thereof. The damper device that adjusts the flow of the cold air in the chamber 21 and the switching chamber 22 is made into a twin damper, so that the accommodation space is made compact and the cost is reduced.
冷蔵室２１と切替室２２、製氷室２３を仕切る第三の仕切壁４０は、第三の仕切壁上板４０ａと第三の仕切壁下板４２とで外郭を構成され、第三の仕切壁４０の内部には硬質発泡ウレタンなどの発泡断熱材２０が発泡充填されている。冷蔵室２１の背面には冷蔵室２１の庫内に冷気を送風するための第三の冷却ダクト４３が取り付けられており、第三の冷却ダクト４３と第二の冷却ダクト３８との接合面には、冷気、水漏れがないようにシール材が貼り付けられている。また、第一の冷却ダクト２９と第一の仕切壁３３と第三の冷却ダクト４３は取り外しが可能であるが、第二の仕切壁３４と第二の冷却ダクト３８と第三の仕切壁４０は冷蔵庫本体１のウレタン発泡前に取り付けられたものであるため取り外しができず、発泡断熱材２０によって冷蔵庫本体１と強固に接合されている。 The third partition wall 40 that partitions the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23 is configured by the third partition wall upper plate 40a and the third partition wall lower plate 42, and the third partition wall. 40 is filled with foam heat insulating material 20 such as hard foam urethane. A third cooling duct 43 for blowing cool air into the refrigerator compartment 21 is attached to the rear surface of the refrigerator compartment 21, and a joint surface between the third cooling duct 43 and the second cooling duct 38 is attached. The seal material is affixed to prevent cold air and water leakage. Further, the first cooling duct 29, the first partition wall 33, and the third cooling duct 43 can be removed, but the second partition wall 34, the second cooling duct 38, and the third partition wall 40 can be removed. Since it is attached before urethane foaming of the refrigerator body 1, it cannot be removed and is firmly joined to the refrigerator body 1 by the foam heat insulating material 20.
また、第一の冷却ダクト２９の内部には冷蔵室２１と、切替室２２と、製氷室２３と、冷凍室２５を冷却するための冷気を送風する風路４１が設けられている。さらに、冷蔵室２１からの冷気を冷却器３０へ戻す冷蔵室用帰還風路４２と、切替室２２からの冷気を冷却器３０へ戻す切替室用帰還風路４３と、製氷室２３からの冷気を冷却器３０へ戻す製氷室用帰還風路４４とを備えている。さらに、第一の冷却ダクト２９の上部には、冷蔵室用帰還風路４２を流れる冷気の一部を野菜室２４内に導入する野菜室用吐出口４５が設けられている。この野菜室用吐出口４５は収納容器を冷却する冷却手段として構成されているものである。また、第一の冷却ダクト２９の野菜室２４下部にあたる位置には野菜室２４からの冷気を再び冷蔵室用帰還風路４２へと戻す野菜室用吸込口４６が設けられており、第一の冷却ダクト２９の冷凍室２５にあたる部位には、風路４１からの冷気を冷凍室２５内へ送風する第一の冷凍室用吐出口４７と、第二の冷凍室用吐出口４８が設けられている。また、第一の冷却ダクト２９の下部には冷凍室２５からの冷気を冷却器３０へ戻す冷凍室用吸込口４９が設けられている。 Further, inside the first cooling duct 29, there are provided a refrigerator compartment 21, a switching chamber 22, an ice making chamber 23, and an air passage 41 for blowing cool air for cooling the freezer compartment 25. Furthermore, the return air path 42 for the refrigerating room returning the cool air from the refrigerating room 21 to the cooler 30, the return air path 43 for the switching room returning the cool air from the switching room 22 to the cooler 30, and the cool air from the ice making room 23. And an ice making chamber return air passage 44 for returning the air to the cooler 30. Furthermore, a vegetable room discharge port 45 through which a part of the cold air flowing through the refrigerating room return air passage 42 is introduced into the vegetable room 24 is provided above the first cooling duct 29. The vegetable room discharge port 45 is configured as a cooling means for cooling the storage container. In addition, a vegetable room suction port 46 for returning the cold air from the vegetable room 24 to the return air passage 42 for the refrigeration room is provided at a position below the vegetable room 24 of the first cooling duct 29. A part corresponding to the freezer compartment 25 of the cooling duct 29 is provided with a first freezer compartment outlet 47 and a second freezer compartment outlet 48 for blowing cool air from the air passage 41 into the freezer compartment 25. Yes. A freezer compartment inlet 49 for returning the cool air from the freezer compartment 25 to the cooler 30 is provided below the first cooling duct 29.
第二の冷却ダクト３８には、ツインダンパー３９を介して冷気を冷蔵室２１へ送風する冷蔵室用風路５０と、同じくツインダンパー３９を介して冷気を切替室２２へ送風する切替室用風路５１と、切替室７５内へ冷気を吐出する切替室用吐出口５２と、風路４１から直接に通じ、冷気を製氷室２３へ送風する製氷室用風路５３と、製氷室２３内へ冷気を吐出する製氷室用吐出口５４を備えている。また、切替室２２からの冷気を冷却器３０へ戻す切替室用帰還風路５５と、製氷室２３からの冷気を冷却器３０へ戻す製氷室用帰還風路５６と、冷蔵室２１からの冷気を冷却器３０へ戻す冷蔵室用帰還風路５７とを備えている。 The second cooling duct 38 includes a refrigerating chamber air passage 50 for blowing cold air to the refrigerating chamber 21 through the twin damper 39 and a switching chamber air for blowing cold air to the switching chamber 22 through the twin damper 39. A path 51, a switching chamber discharge port 52 that discharges cold air into the switching chamber 75, an ice making chamber air path 53 that communicates directly from the air path 41 and blows cold air to the ice making chamber 23, and into the ice making chamber 23. An ice making chamber discharge port 54 for discharging cold air is provided. Further, the switching chamber return air passage 55 for returning the cold air from the switching chamber 22 to the cooler 30, the ice making chamber return air passage 56 for returning the cold air from the ice making chamber 23 to the cooler 30, and the cold air from the refrigerator compartment 21. Is provided with a return air passage 57 for the refrigerator compartment for returning the air to the cooler 30.
第三の冷却ダクト４３には、冷気を冷蔵室２１内へ導く冷蔵室用風路５８と、冷蔵室用風路５８からの冷気を冷蔵室２１へ吐出する複数の冷蔵室用吐出口５９が設けられている。また、第三の冷却ダクト４３の下部には冷蔵室２１からの冷気を冷却器３０へと戻す冷蔵室用吸込口６０と、冷蔵室用帰還風路６１とが設けられている。 The third cooling duct 43 has a refrigeration chamber air passage 58 for introducing cold air into the refrigeration chamber 21 and a plurality of refrigerating chamber outlets 59 for discharging the cold air from the refrigeration chamber air passage 58 to the refrigeration chamber 21. Is provided. Further, at the lower part of the third cooling duct 43, there are provided a refrigerator compartment suction port 60 for returning the cool air from the refrigerator compartment 21 to the cooler 30, and a refrigerator compartment return air passage 61.
野菜室２４は、その前面開口部を開放可能な扉６２にて外気の流入が無いように閉塞されている。この扉６２には左右一対で野菜室２４内に延伸された板状のスライドレール６３が設けられており、この上に下段収納容器６４が載置されている。扉６２はこのスライドレール６３の可動方向に沿って水平方向に引き出して開閉され、それに伴ない下段収納容器６４も稼動して引き出される。さらに、下段収納容器６４には上段収納容器６５が載置されており、下段収納容器６４と同時に可動することになる。この時、上段収納容器６５の底面面積は下段収納容器６４の底面面積よりも小さく構成されている。本実施の形態ではこの上段収納容器６５と下段収納容器６４を前後方向に空間を設けて配置し、この空間内に比較的背の高い食品、例えばＰＥＴボトルや白菜等の長物野菜を収納可能としている。 The vegetable compartment 24 is closed so that there is no inflow of outside air by a door 62 that can open its front opening. The door 62 is provided with a pair of left and right plate-like slide rails 63 extending into the vegetable compartment 24, and a lower storage container 64 is placed thereon. The door 62 is opened and closed horizontally by being pulled along the movable direction of the slide rail 63, and the lower storage container 64 is also operated and pulled out. Further, an upper storage container 65 is placed on the lower storage container 64 and is movable simultaneously with the lower storage container 64. At this time, the bottom surface area of the upper storage container 65 is configured to be smaller than the bottom surface area of the lower storage container 64. In this embodiment, the upper storage container 65 and the lower storage container 64 are arranged with a space in the front-rear direction, and a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in this space. Yes.
また、野菜室２４内には蓋６６が配置されており、扉６２が閉じている場合には上段収納容器６５の上面開放部を閉塞する。さらに、扉６２の開放時には蓋６６は野菜室２４内に残り、引き出されることはない。 Further, a lid 66 is disposed in the vegetable compartment 24, and when the door 62 is closed, the upper surface opening portion of the upper storage container 65 is closed. Further, when the door 62 is opened, the lid 66 remains in the vegetable compartment 24 and is not pulled out.
第一の冷却ダクト２９の背面仕切壁３７にはミスト噴霧手段６７が配置され、下段収納容器６４と上段収納容器６５との間隙近傍に位置している。さらに、ミスト噴霧手段６７の左右には、野菜室２４内に略水平方向に延伸された風向リブ６８が第一の冷却ダクト２９と一体に成形されている。この風向リブ６８は下段収納容器６４の背面上端よりも上方に位置しており、上段収納容器６５、下段収納容器６４と第一の冷却ダクト２９との間の空間を上下に仕切っている。この時、風向リブ６８と上段収納容器６５、及び風向リブ６８と下段収納容器６４は前後方向にドア開閉に際して互いに当接することのない程度の隙間が設けられている。なお、本実施の形態では風向リブ６８は下段収納容器６４の背面上端よりも上方に位置するとしたが、下段収納容器６４と同一の高さであってもよい。 A mist spraying means 67 is disposed on the rear partition wall 37 of the first cooling duct 29 and is located in the vicinity of the gap between the lower storage container 64 and the upper storage container 65. Further, on the left and right sides of the mist spraying means 67, wind direction ribs 68 extending in a substantially horizontal direction in the vegetable compartment 24 are formed integrally with the first cooling duct 29. The wind direction ribs 68 are located above the upper end of the lower surface of the lower storage container 64 and partition the space between the upper storage container 65 and the lower storage container 64 and the first cooling duct 29 vertically. At this time, the airflow direction rib 68 and the upper storage container 65, and the airflow direction rib 68 and the lower storage container 64 are provided with gaps that do not contact each other when the door is opened and closed. In the present embodiment, the wind direction ribs 68 are positioned above the upper rear end of the lower storage container 64, but may be the same height as the lower storage container 64.
また、野菜室２４内には、上下方向において野室用吐出口４５と野菜室用吸込口４６との間にミスト噴霧手段６７が備えられている。 In the vegetable compartment 24, a mist spraying means 67 is provided between the field chamber outlet 45 and the vegetable compartment inlet 46 in the vertical direction.
このように野菜室２４にミスト噴霧手段６７が備えられており、野菜室２４外から冷気吐出口である野室用吐出口４５を通って冷気が流入し、冷気吸入口である野菜室用吸込口４６を通って野菜室２４外へと冷気が流出することで、野菜室２４内には、野菜室用吸込口４６から流入した後、主に野菜室２４に備えられた収納容器の外側を流れて野菜室用吸込口４６を通って野菜室２４外へと冷気が流出するが、その中でも野室用吐出口４５と野菜室用吸込口４６とを最短距離で結ぶ冷気流通経路上にミスト噴霧手段６７が備えられている。 In this way, the vegetable room 24 is provided with the mist spraying means 67, and cold air flows from the outside of the vegetable room 24 through the field air outlet 45 which is a cold air outlet, and the vegetable room suction which is a cold air inlet. After the cold air flows out of the vegetable compartment 24 through the mouth 46, the outside of the storage container provided in the vegetable compartment 24 is mainly introduced into the vegetable compartment 24 from the vegetable compartment suction port 46. The cold air flows out to the outside of the vegetable room 24 through the vegetable room suction port 46, and among them, the mist on the cold air distribution path connecting the field room discharge port 45 and the vegetable room suction port 46 in the shortest distance. A spraying means 67 is provided.
さらに、本実施の形態では、ミスト噴霧手段６７を備えた貯蔵室（野菜室２４）内において、冷気吐出口である野室用吐出口４５は、ミスト噴霧手段６７より上方に配置されるとともに冷気吸込口である野菜室用吸込口４６はミスト噴霧手段６７より下方に配置され、野室用吐出口４５とミスト噴霧手段６７手段の上下方向の距離は、野菜室用吸込口４６とミスト噴霧手段６７との距離よりも短い位置に配置されている。言い換えると、ミスト噴霧手段６７は上下方向において、野菜室吐出口４５に近い上方側に配置されていることとなる。 Further, in the present embodiment, in the storage room (vegetable room 24) provided with the mist spraying means 67, the field chamber discharge port 45, which is a cold air discharge port, is disposed above the mist spraying means 67 and cool air. The vegetable room suction port 46, which is a suction port, is disposed below the mist spraying means 67, and the vertical distance between the field room discharge port 45 and the mist spraying means 67 means the vegetable room suction port 46 and the mist spraying means. It is arranged at a position shorter than the distance to 67. In other words, the mist spraying means 67 is arranged on the upper side close to the vegetable compartment discharge port 45 in the vertical direction.
さらに、ミスト噴霧手段６７は野菜室２４の上下方向における中心線２４ａよりも上部に配置されている。 Further, the mist spraying means 67 is disposed above the center line 24a in the vertical direction of the vegetable compartment 24.
ミスト噴霧手段６７は、噴霧を行う霧化部６７ａを有し、霧化部６７ａを露点温度以下まで冷却することで霧化部６７ａ周辺の空気中の水分を結露させた結露水を用いてミストを発生させ、貯蔵室（野菜室２４）内の空間へ噴霧するものである。本実施の形態においては、霧化部６７ａを露点温度以下まで冷却する冷却手段として霧化部６７ａの背面側の冷気が送風される風路４１を用いている。 The mist spraying means 67 has an atomizing part 67a for performing spraying, and the mist is condensed using condensed water obtained by condensing moisture in the air around the atomizing part 67a by cooling the atomizing part 67a to a dew point temperature or lower. Is generated and sprayed to the space in the storage room (vegetable room 24). In the present embodiment, the air passage 41 through which the cool air on the back side of the atomizing portion 67a is blown is used as a cooling means for cooling the atomizing portion 67a to the dew point temperature or lower.
下段収納容器６４の背面上端の一部でミスト噴霧手段６７の近傍には、下段収納容器６４内から下段収納容器６４外へ流出する冷気の量が最も多い冷気流出部である凹部６９が設けられており、凹部６９は下段収納容器６４の背面上端よりも低く形成されている。 A recess 69, which is a cool air outflow portion with the largest amount of cool air flowing out from the lower storage container 64 to the outside of the lower storage container 64, is provided in the vicinity of the mist spraying means 67 at a part of the upper rear surface of the lower storage container 64. The recess 69 is formed lower than the upper end of the back surface of the lower storage container 64.
また、下段収納容器６４内から下段収納容器６４外へ流出する冷気の量が最も多い冷気流出部は下段収納容器６４には上段収納容器６５と下段収納容器６４との隙間が最も大きい箇所である凹部６９であって、この下段収納容器６４の凹部６９はミスト噴霧手段６７と対向する位置に設けられている。 Further, the cool air outflow portion where the amount of cool air flowing out from the lower storage container 64 to the outside of the lower storage container 64 is the place where the gap between the upper storage container 65 and the lower storage container 64 is the largest in the lower storage container 64. It is the recessed part 69, Comprising: The recessed part 69 of this lower stage storage container 64 is provided in the position facing the mist spraying means 67. FIG.
なお、凹部６９の上下左右の位置についてはミスト噴霧手段６７の噴霧口７０が下段収納容器６４の背面で隠れないように形成すればよい。 Note that the vertical and horizontal positions of the recess 69 may be formed such that the spray port 70 of the mist spraying means 67 is not hidden behind the lower storage container 64.
収納容器からの冷気流出部は、この凹部６９と上段収納容器６５の底面とで形成される隙間であり、この部分が下段収納容器６４内から下段収納容器６４外へ流出する冷気の量が最も多い箇所である。 The cool air outflow portion from the storage container is a gap formed by the recess 69 and the bottom surface of the upper storage container 65, and this portion has the largest amount of cool air flowing out from the lower storage container 64 to the outside of the lower storage container 64. There are many places.
また、上段収納容器６５にはその一部に複数の空気流通穴７１が設けられている。 The upper storage container 65 is provided with a plurality of air circulation holes 71 in a part thereof.
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、冷凍サイクルの動作について説明する。庫内の設定された温度に応じて制御基板（図示せず）からの信号により冷凍サイクルが動作して冷却運転が行われる。圧縮機２７の動作により吐出された高温高圧の冷媒は、凝縮器（図示せず）にて放熱して凝縮液化し、キャピラリーチューブ（図示せず）に至る。その後、キャピラリーチューブでは圧縮機２７への吸入管（図示せず）と熱交換しながら減圧されて低温低圧の液冷媒となって冷却器３０に至る。冷却ファン３１の動作により、各貯蔵室内の空気と熱交換されて冷却器３０内の冷媒は蒸発気化し、低温の冷気をダンパーなどで供給制御することで各室の所望の冷却を行う。冷却器３０を出た冷媒は吸入管を経て圧縮機２７へと吸い込まれる。 First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 27 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 27 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 30. By the operation of the cooling fan 31, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 30 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 30 is sucked into the compressor 27 through the suction pipe.
各貯蔵室内の空気と熱交換されて冷却器３０には、各貯蔵室内空気と熱交換した時に水分が付着し霜となる。制御基板（図示せず）から定期的に信号が出力され、圧縮機２７を停止させ、ラジアントヒータ３２に通電し、冷却器３０の除霜を行う。 When the heat is exchanged with the air in each storage chamber and heat is exchanged with the air in each storage chamber, moisture adheres to the cooler 30 and becomes frost. A signal is periodically output from a control board (not shown), the compressor 27 is stopped, the radiant heater 32 is energized, and the cooler 30 is defrosted.
次に冷蔵庫本体１内の冷気の流れについて説明する。冷却ファン３１から送風された冷気は、風路４１を通じ下方と上方に振り分けられて送風される。下方に振り分けられた冷気は、第一の冷凍室用吐出口４７と第二の冷凍室用吐出口４８を通り冷凍室２５内に吐出され、冷凍室２５内の空気と熱交換し冷凍室用吸込口４９を通って冷却室２８に戻る。 Next, the flow of cold air in the refrigerator body 1 will be described. The cool air blown from the cooling fan 31 is distributed downward and upward through the air passage 41 and blown. The cold air distributed downward passes through the first freezer compartment outlet 47 and the second freezer compartment outlet 48 and is discharged into the freezer compartment 25 to exchange heat with the air in the freezer compartment 25. It returns to the cooling chamber 28 through the suction port 49.
冷却ファン３１から送風された冷気の内、上方に振り分けられた冷気は、冷蔵室用風路５０とツインダンパー３９の冷蔵室側を経由して冷蔵室用吐出口５９から冷蔵室２１に至る。また一部は切替室用風路５１とツインダンパー３９の切替室側を経由して切替室用吐出口５２から切替室２２に至る。ここで制御基板（図示せず）から信号を出力しツインダンパーを動作させ、冷気の流れをコントロールし、冷蔵室２１と切替室２２の温度制御を行い所定の温度に庫内温度を調整する。 Of the cool air blown from the cooling fan 31, the cool air distributed upward reaches the refrigerating chamber 21 from the refrigerating chamber discharge port 59 via the refrigerating chamber air passage 50 and the refrigerating chamber side of the twin damper 39. Further, a part reaches the switching chamber 22 from the switching chamber discharge port 52 via the switching chamber air passage 51 and the switching chamber side of the twin damper 39. Here, a signal is output from a control board (not shown) to operate the twin damper, the flow of cold air is controlled, the temperature of the refrigerator compartment 21 and the switching chamber 22 is controlled, and the internal temperature is adjusted to a predetermined temperature.
冷蔵室２１内に送風された冷気は、冷蔵室２１内の空気と熱交換し、冷蔵室用吸込口６０から吸入され、冷蔵室用帰風路６１、冷蔵室用帰還風路５７、冷蔵室用帰還風路４２を通り冷却室２８に戻る。ここで冷蔵室２１の戻り冷気の一部は、冷蔵室用帰還風路４２の途中に設けられた野菜室用吐出口４５により野菜室２４内に流入し、野菜室２４内を冷却することになる。 The cold air blown into the refrigerating room 21 exchanges heat with the air in the refrigerating room 21 and is sucked from the refrigerating room suction port 60 to return to the refrigerating room return passage 61, the refrigerating room return air passage 57, and the refrigerating room. Return to the cooling chamber 28 through the return air passage 42. Here, a part of the return cold air from the refrigerator compartment 21 flows into the vegetable compartment 24 through the vegetable compartment discharge port 45 provided in the middle of the refrigerator compartment return air passage 42 to cool the vegetable compartment 24. Become.
野菜室用吐出口４５から吐出された冷気は、一部が蓋６６と第二の仕切壁３４との間を通り、上段収納容器６５の手前部分から下段収納容器６４の手前部分に入る。さらに再び下段収納容器６４の手前部分から下段収納容器６４の下部と第一の仕切壁３３の間を通り、野菜室用吸込口４６から吸入され、冷蔵室用帰還風路４２に合流する。 Part of the cool air discharged from the vegetable room discharge port 45 passes between the lid 66 and the second partition wall 34 and enters the front portion of the lower storage container 64 from the front portion of the upper storage container 65. Furthermore, it passes again between the lower part of the lower storage container 64 and the first partition wall 33 from the front part of the lower storage container 64 and is sucked from the vegetable room suction port 46 and merges with the return air path 42 for the refrigerator compartment.
一方、野菜室用吐出口４５からは冷気の一部が冷却ダクト２９の壁に沿って下方に吐出され、冷却ダクト２９に一体に形成され、ミスト噴霧手段６７の左右に設けられた風向リブ６８によって風向を変えられ、概ね前方に向かって冷気が流れることになる。前述したように風向リブ６８は下段収納容器６４の背面上端と同じ高さかもしくは上方に位置するため、前方に風向を変えられた冷気は、上段収納容器６５の底面と下段収納容器６４の背面上端との間隙から下段収納容器６４内に入り、内部の収納食品を冷却することになる。 On the other hand, a part of the cold air is discharged downward along the wall of the cooling duct 29 from the vegetable room outlet 45 and is formed integrally with the cooling duct 29 and is provided on the right and left sides of the mist spraying means 67. The wind direction can be changed by this, and the cold air will generally flow forward. As described above, the wind direction rib 68 is located at the same height or above the rear upper end of the lower storage container 64, so that the cold air whose direction has been changed forward is the bottom of the upper storage container 65 and the upper rear end of the lower storage container 64. The product enters the lower storage container 64 through the gap and cools the stored food inside.
下段収納容器６４内部に収納された食品からは、投入時からの時間経過に伴い水分が蒸散する。この時、蒸散した水分を含んだ空気は、下段収納容器６４内に流入した冷気の流れに沿って下段収納容器６４内から下段収納容器６４外へ流出する冷気の量が最も多い箇所であって冷気流出部である凹部６９から収納容器外に流出し、冷気流出部である凹部６９の近傍に配置されたミスト噴霧手段６７へと到達する。このように下段収納容器６４内の高湿の冷気は冷気流出部である下段収納容器６４の凹部６９がミストが噴霧される空間である下段収納容器６４の高さ方向の壁面がもっとも低い箇所であり、かつ上段収納容器６５の底面と下段収納容器６４の背面上端との間隙が最も大きい箇所である為に流れる冷気量が最も多量であり、この凹部６９を中心に下段収納容器６４外へと流出し、ミスト噴霧手段６７の周囲は高湿度の雰囲気となる。 From the food stored in the lower storage container 64, moisture evaporates as time passes from the time of charging. At this time, the air containing the evaporated water is the place where the amount of cold air flowing out from the lower storage container 64 to the outside of the lower storage container 64 along the flow of the cold air flowing into the lower storage container 64 is the largest. It flows out of the storage container from the concave portion 69 that is the cold air outflow portion, and reaches the mist spraying means 67 disposed in the vicinity of the concave portion 69 that is the cold air outflow portion. In this way, the high-humidity cold air in the lower storage container 64 is at the place where the wall surface in the height direction of the lower storage container 64 where the mist is sprayed is the recess 69 of the lower storage container 64 that is the cold outflow portion. And the amount of cool air flowing is the largest because the gap between the bottom surface of the upper storage container 65 and the upper end of the back surface of the lower storage container 64 is the largest. It flows out and the surroundings of the mist spraying means 67 become an atmosphere of high humidity.
ミスト噴霧手段６７は空気中の水分を結露させて水の補給を行うタイプのものであり、風路４１によりその内部が周囲温度よりも低く冷却されており、ミスト噴霧手段６７内部で空気中の水分が結露することになる。この結露した水を凹部６９と上段収納容器６５の底面とで区画される冷気流出部から収納容器内部にミスト状に噴霧する。結果、収納食品からの蒸散水はミスト噴霧手段６７により、再び収納食品自体に返されることになる。 The mist spraying means 67 is of a type in which moisture in the air is condensed to replenish water, and the inside of the mist spraying means 67 is cooled to a temperature lower than the ambient temperature by the air passage 41. Moisture will condense. The condensed water is sprayed in the form of a mist from the cold air outflow portion partitioned by the recess 69 and the bottom surface of the upper storage container 65. As a result, the transpiration water from the stored food is returned to the stored food itself again by the mist spraying means 67.
このように、野菜室用吐出口４５から冷気が流入している場合において、野菜室用吐出口４５から貯蔵室（野菜室２４）内に流入した冷気が野菜室用吸込口４６を通って野菜室２４外へと流れる風路の中で、野菜室用吐出口４５と野菜室用吸込口４６とを最短距離で結ぶ冷気流通経路は流れている冷気の量が多い為に、比較的冷気の流速が早くなり収納容器内の冷気が引っ張られ高湿度の冷気が下段収納容器６４の凹部６９を中心に冷気流通経路上に漏れ出てきて、この凹部６９の対向する位置にミスト噴霧手段６７を配置しているので、収納容器内からの高湿度の冷気を効率良く回収し、ミスト噴霧手段６７に積極的に結露させることができ、この結露水を微細ミストに変えて、拡散性の高い微細ミストを再度収納容器内に返すことができ、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 Thus, when cold air is flowing in from the vegetable room discharge port 45, the cold air that has flowed into the storage room (vegetable room 24) from the vegetable room discharge port 45 passes through the vegetable room suction port 46 and vegetables. Among the air passages flowing out of the room 24, the cold air flow path connecting the vegetable room discharge port 45 and the vegetable room suction port 46 with the shortest distance has a large amount of cold air flowing, so that relatively cold air flows. As the flow rate increases, the cool air in the storage container is pulled, and high-humidity cool air leaks into the cool air flow path centering around the recess 69 of the lower storage container 64, and the mist spraying means 67 is placed at a position opposite to the recess 69. Since it is arranged, it is possible to efficiently collect high-humidity cold air from the inside of the storage container, and to positively condense the mist spraying means 67. By changing this condensed water into fine mist, a highly diffusive fine The mist can be returned to the storage container again The storage vessel was sufficiently humidified with a fine mist, it is possible to maintain the freshness of vegetables.
また、野菜室用吐出口４５から冷気が流入していない場合においては、風路上において野菜室用吐出口４５より上流に位置するダンパーが備えられており、そのダンパーは閉じられているが、一般にと野菜室用吸込口４６より下流にはダンパーが備えられていない為、少しずつではあるが野菜室２４内の冷気が野菜室用吸込口４６から野菜室２４外へと流出することとなり、その場合においては、収納容器である下段収納容器６４内から野菜室用吸込口４６の方向へと冷気の流れが発生する。 In addition, when cold air does not flow from the vegetable chamber discharge port 45, a damper is provided on the air path upstream of the vegetable chamber discharge port 45, and the damper is closed. Since the damper is not provided downstream of the vegetable room suction port 46, the cool air in the vegetable room 24 will flow out of the vegetable room 24 from the vegetable room suction port a little. In some cases, a flow of cold air is generated from the inside of the lower storage container 64 that is a storage container toward the vegetable room suction port 46.
よって、野菜室用吐出口４５から冷気が流入していない場合であっても、下段収納容器６４の高さ方向の壁面がもっとも低い箇所であり、かつ上段収納容器６５の底面と下段収納容器６４の背面上端との間隙が最も大きい箇所である為に流れる冷気量が最も多量である冷気流出部から高湿度の冷気が流出するので、この冷気流出部の近傍に配置されたミスト噴霧手段６７周辺は高湿度の雰囲気となり、ミスト噴霧手段６７内部で空気中の水分が結露しやすい環境にすることができる。 Therefore, even when cold air does not flow from the vegetable room discharge port 45, the wall surface in the height direction of the lower storage container 64 is the lowest, and the bottom surface of the upper storage container 65 and the lower storage container 64 Since the high-temperature cold air flows out from the cold air outflow portion where the amount of the cold air flowing is the largest because the gap with the upper end of the back surface of the mist is the largest, the periphery of the mist spraying means 67 arranged in the vicinity of this cold air outflow portion Becomes an atmosphere of high humidity, and it is possible to create an environment in which moisture in the air tends to condense inside the mist spraying means 67.
収納容器外部へ流出しミスト噴霧手段近傍を通過した冷気は、野菜室用吸込口４６から吸入され、冷蔵室用帰還風路４２に合流する。これら一連の動作でも分かるように野菜室２４は冷蔵室２１の戻り冷気を利用して冷却していることになる。 The cold air that has flowed out of the storage container and passed through the vicinity of the mist spraying means is sucked from the vegetable room suction port 46 and merges with the return air path 42 for the cold room. As can be seen from these series of operations, the vegetable compartment 24 is cooled by using the return cold air from the refrigerator compartment 21.
さらに、本実施の形態では、ミスト噴霧手段６７を備えた野菜室２４において、冷気吐出口である野室用吐出口４５は、ミスト噴霧手段６７より上方に配置されるとともに冷気吸込口である野菜室用吸込口４６はミスト噴霧手段６７より下方に配置され、野室用吐出口４５とミスト噴霧手段６７手段の上下方向の距離は、野菜室用吸込口４６とミスト噴霧手段６７との距離よりも短い位置に配置されている。言い換えると、ミスト噴霧手段６７は上下方向において、野菜室用吐出口４５に近い上方側に配置されており、ミスト噴霧手段６７は野菜室２４の上下方向における中心線２４ａ上もしくは上下方向における中心線２４ａよりも上方に配置されていることとなる。 Further, in the present embodiment, in the vegetable room 24 provided with the mist spraying means 67, the field-room discharge port 45 that is a cold air discharge port is disposed above the mist spraying means 67 and is a vegetable that is a cold air suction port. The room suction port 46 is disposed below the mist spraying means 67, and the vertical distance between the field chamber discharge port 45 and the mist spraying means 67 means the distance between the vegetable room suction port 46 and the mist spraying means 67. Is also placed in a short position. In other words, the mist spraying means 67 is arranged on the upper side close to the vegetable chamber discharge port 45 in the vertical direction, and the mist spraying means 67 is on the center line 24a in the vertical direction of the vegetable chamber 24 or in the vertical direction. It will be arranged above 24a.
これによって、冷たい空気は下方側へ流れる特性を生かし、噴霧されたミスト粒子が野菜室２４内の冷気の流れに乗って噴霧されるため、より拡散性を高めることができ、より効果的にミスト噴霧を行うことができる。 This makes it possible for cold air to take advantage of the characteristic of flowing downward, and since the sprayed mist particles are sprayed on the cold air flow in the vegetable compartment 24, the diffusibility can be further increased, and the mist can be more effectively produced. Spraying can be performed.
なお、ミスト噴霧手段６７と下段収納容器６４と上段収納容器６５との間隙とはその上下位置関係としては、図２に示すものに限定されるものではなく、多少のずれがあってもよい。概ねミスト噴霧手段６７の一部が下段収納容器６４と上段収納容器６５との間隙と同一高さであれば、下段収納容器６４と上段収納容器６５の背面の間隙から収納容器外に流出した収納食品からの蒸散水を含んだ空気を効率的に回収することができ、この蒸散水を再びミストとして噴霧することができる。 Note that the gaps among the mist spraying means 67, the lower storage container 64, and the upper storage container 65 are not limited to those shown in FIG. 2 and may be slightly shifted. If a part of the mist spraying means 67 is approximately the same height as the gap between the lower storage container 64 and the upper storage container 65, the storage that has flowed out of the storage container through the gap between the back surfaces of the lower storage container 64 and the upper storage container 65. Air containing transpiration water from food can be efficiently recovered, and this transpiration water can be sprayed again as mist.
また、本実施の形態では、野菜室２４内の冷気が流出する下流側である野菜室用吸込口４６の下流側にはダンパーが備えられず、風路の下流側と連通している構成とする。 Further, in the present embodiment, a damper is not provided on the downstream side of the vegetable room suction port 46, which is the downstream side from which the cold air in the vegetable room 24 flows out, and is in communication with the downstream side of the air passage. To do.
これによって、霧化装置が備えられた貯蔵室である野菜室２４へ冷気の流入を行う野菜室用吐出口４５の冷気の風路上において上流に位置するダンパーが閉まっている場合、すなわち野菜室用吐出口４５から冷気の流入が無い場合においては、野菜室２４内の冷気が流出する下流側である野菜室用吸込口４６の下流側には風路の下流側と連通しているので、野菜室用吐出口４５から冷気の流入が無い場合であってもわずかではあるが野菜室２４内から野菜室用吸込口４６へと冷気の流れが発生する。よって、この状態においても、野菜室用吸込口４６へ向かって下段収納容器６４内の冷気が冷気流出部から収納容器外に流出し、冷気流出部の近傍に配置されたミスト噴霧手段６７へと到達するので、ミスト噴霧手段６７近傍は高湿度の雰囲気となり、より霧化装置近傍で結露を行いやすい環境となる。 Thereby, when the damper located upstream on the cold air path of the discharge port 45 for the vegetable room that allows the cold air to flow into the vegetable room 24 that is the storage room equipped with the atomizing device is closed, that is, for the vegetable room When there is no inflow of cold air from the discharge port 45, the downstream side of the vegetable room suction port 46, which is the downstream side of the cold air in the vegetable room 24, communicates with the downstream side of the air passage. Even if there is no inflow of cold air from the discharge port 45 for the room, a flow of cold air is generated from the inside of the vegetable room 24 to the suction port 46 for the vegetable room, although it is slight. Accordingly, even in this state, the cold air in the lower storage container 64 flows out of the cold air outflow portion toward the vegetable room suction port 46 and out of the storage container, and is directed to the mist spraying means 67 disposed in the vicinity of the cold air outflow portion. Therefore, the vicinity of the mist spraying means 67 becomes an atmosphere of high humidity, and an environment in which condensation is more likely to occur near the atomizer.
また、本実施の形態では、霧化部６７ａを露点温度以下まで冷却する冷却手段として霧化部６７ａの背面側の冷気が送風される風路４１を用いているので、冷凍サイクルの中で霧化部周辺の温度よりもより低い冷気を冷却手段とすることで、専用の冷却手段を備えなくてもより簡単な構成で霧化部６７ａの冷却を行うことが可能となり、省資源でかつ省エネルギーで霧化装置を備えることができる。 In the present embodiment, the air passage 41 through which the cool air on the back side of the atomizing section 67a is blown is used as a cooling means for cooling the atomizing section 67a to the dew point temperature or lower. By using cold air lower than the temperature around the gasification section as the cooling means, it becomes possible to cool the atomizing section 67a with a simpler configuration without providing a dedicated cooling means, thus saving resources and saving energy. Can be equipped with an atomizer.
なお、冷凍サイクルの中で霧化部周辺の温度よりもより低い冷気を冷却手段とする場合には、ミスト噴霧手段６７が備えられた貯蔵室とは断熱壁で区画された隣接する区画の低温冷気を用いればよく、冷却手段は背面の風路４１に限定せず、隣接する貯蔵室の低温空気等でも良い。 In addition, when cooler air having a temperature lower than the temperature around the atomizing section is used as the cooling means in the refrigeration cycle, the storage room provided with the mist spraying means 67 is a low temperature of an adjacent section partitioned by a heat insulating wall. Cold air may be used, and the cooling means is not limited to the air passage 41 on the back surface, and may be low-temperature air in an adjacent storage room or the like.
また、上段収納容器６５には蓋６６がその上方開口部を閉塞しており、収納食品に直接冷気があたり、乾燥することを防いでいる。また、下段収納容器６４と上段収納６５の前後方向での空間には、一般にＰＥＴボトル等の飲料が置かれることが多く、この部分には冷気が直接触れることになり、冷却スピードを確保している。 Further, the upper storage container 65 has a lid 66 that closes the upper opening thereof, so that the stored food is prevented from being directly cooled and dried. Also, in the space in the front-rear direction of the lower storage container 64 and the upper storage container 65, generally beverages such as PET bottles are often placed, and cold air is directly touched on this part to ensure the cooling speed. Yes.
切替室２２に送風された冷気は、切替室２２内の空気と熱交換し切替室用帰還風路５５を通り冷却室２８に戻る。 The cool air blown into the switching chamber 22 exchanges heat with the air in the switching chamber 22 and returns to the cooling chamber 28 through the switching chamber return air passage 55.
なお、収納容器外に流出する冷気の風量は少量であり、上記のミスト噴霧を妨げることはない。また、ミスト噴霧に必要な程度の水分をミスト噴霧手段６７に供給することは可能である。 Note that the amount of cool air flowing out of the storage container is small, and does not interfere with the mist spray. Further, it is possible to supply the mist spraying means 67 with water necessary for mist spraying.
この時噴霧されるミスト粒子は、例えば０．００５μｍ〜２０μｍ程度であり非常に微細なものである。なお、ミスト噴霧手段６７には、例えば超音波により水を微粒子化して噴霧するもの、静電霧化方式によるもの、ポンプ方式で噴霧するもの等を用いればよい。 The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 67 may be, for example, one that atomizes and sprays water with ultrasonic waves, one that uses an electrostatic atomization system, one that sprays using a pump system, or the like.
このようにして食品からの水分の蒸散−結露−ミスト噴霧のサイクルを繰り返す訳であるが、本実施の形態によれば、ＰＥＴボトルのような冷却スピードが気になる食品は吐出冷気で直接的に冷却し、かつ、葉野菜のように萎れが気になる食品についてはミスト噴霧により鮮度を維持することができる。 In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. The freshness can be maintained by mist spraying for foods that are cooled down and wilted like leafy vegetables.
この時、図示はしないが野菜室２４内部のミスト噴霧手段６７が備えられている背面仕切壁３７にはヒータ等の加熱手段で適度に加熱されており、この加熱手段は少なくともミスト噴霧手段６７の下方側にも配置されている。これによって、収納容器外へ拡散したミスト粒子および、野菜からの蒸散水が背面仕切壁３７に結露することを防止している。また、このようにミスト噴霧手段６７が備えられている壁面にヒータ等の加熱手段を備えることによって、他の側壁と比較して、加熱手段１５４によって、上昇気流が発生しやすい仕切壁にミスト噴霧手段６７が備えられることになり、その上昇気流に乗ってより高湿度の冷気がミスト噴霧手段６７近傍に集まりやすくなり、前記ミスト噴霧手段近傍を高湿化し、効率よく結露回収することができる。 At this time, although not shown, the rear partition wall 37 provided with the mist spraying means 67 inside the vegetable compartment 24 is appropriately heated by a heating means such as a heater, and this heating means is at least of the mist spraying means 67. It is also arranged on the lower side. This prevents the mist particles diffused out of the storage container and the transpiration water from the vegetables from condensing on the rear partition wall 37. Further, by providing a heating means such as a heater on the wall surface provided with the mist spraying means 67 in this way, compared to other side walls, the heating means 154 causes the mist spraying on the partition wall where the rising airflow is likely to be generated. Means 67 will be provided, and it will be easy to gather cold air with higher humidity in the vicinity of the mist spraying means 67 by riding on the rising airflow, and the vicinity of the mist spraying means can be highly humidified, and condensation can be collected efficiently.
また、少なくともミスト噴霧手段６７の下方側にも加熱手段が配置されていることで、より確実にその上昇気流に乗ってより高湿度の冷気がミスト噴霧手段６７近傍に集まりやすくなり、前記ミスト噴霧手段近傍を高湿化し、効率よく結露回収することができる。 In addition, since the heating means is also disposed at least below the mist spraying means 67, it is possible to more reliably get on the rising airflow and to collect cool air with higher humidity near the mist spraying means 67. Humidity in the vicinity of the means can be increased and condensation can be collected efficiently.
また、上段収納容器６５の空気流通穴７１は、上段収納容器６５内の過剰な結露を防ぐ役割をはたしている。 The air circulation hole 71 of the upper storage container 65 plays a role of preventing excessive dew condensation in the upper storage container 65.
なお、第一の冷却ダクト２９のミスト噴霧手段６７の取付部をその周囲よりも薄い壁厚に設定すればより局部的にミスト噴霧手段６７を冷却することができる。 In addition, if the attachment part of the mist spraying means 67 of the 1st cooling duct 29 is set to wall thickness thinner than the circumference | surroundings, the mist spraying means 67 can be cooled more locally.
また、第二の仕切壁下板３６は冷却板として機能し、収納容器内を冷却するのであるが、第二の仕切壁下板３６は上段収納容器６５よりも大きく構成され、ＰＥＴボトル等の収納部との間に障害物が無い為、ＰＥＴボトル等の飲料を比較的早く冷却することが可能である。 In addition, the second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container. However, the second partition wall lower plate 36 is configured to be larger than the upper storage container 65 and is formed of a PET bottle or the like. Since there is no obstacle between the container and the beverage, it is possible to cool a beverage such as a PET bottle relatively quickly.
以上のように、本実施の形態においては、冷蔵室２１、切替室２２、製氷室２３、野菜室２４、冷凍室２５等の貯蔵室を有する冷蔵庫本体１と、貯蔵室（野菜室２４）の前面開口部を閉塞する扉６２と、貯蔵室（野菜室２４）内に設けられ、食品を収納し互いに上下に配置される複数の収納容器（下段収納容器６４、上段収納容器６５）と、貯蔵室（野菜室２４等）内を冷却する冷気を生成する冷却器３０と、貯蔵室（野菜室２４）内に冷気を吐出する冷気吐出口（野菜室用吐出口４５）と、貯蔵室（野菜室２４）内を冷却した冷気を冷却器３０に帰還させる冷気吸込口（野菜室用吸込口４６）と、収納容器（主に下段収納容器６４）内にミストを噴霧するミスト噴霧手段６７とからなり、冷気吐出口（野菜室用吐出口４５）からの冷気を収納容器（下段収納容器６４、上段収納容器６５）内に導入し、収納容器（下段収納容器６４、上段収納容器６５）のミスト噴霧手段６７に近接する場所から収納容器（下段収納容器６４、上段収納容器６５）外へ流出させることとしたものであり、本来であれば、そのまま冷気吸込口（野菜室用吸込口４６）から冷却器３０へ運ばれてしまう収納容器（下段収納容器６４、上段収納容器６５）内の湿気をミスト噴霧手段６７により効率良く回収し、再度収納容器（下段収納容器６４、上段収納容器６５）内に返すことにより、収納容器（下段収納容器６４、上段収納容器６５）内を十分に加湿し、野菜の鮮度を保持することができる。 As described above, in the present embodiment, the refrigerator main body 1 having storage rooms such as the refrigerating room 21, the switching room 22, the ice making room 23, the vegetable room 24, the freezing room 25, and the storage room (vegetable room 24) A door 62 that closes the front opening, a plurality of storage containers (a lower storage container 64 and an upper storage container 65) that are provided in the storage room (vegetable room 24) and store food and are arranged one above the other. A cooler 30 for generating cool air for cooling the inside of the room (vegetable room 24, etc.), a cold air outlet (vegetable room outlet 45) for discharging cold air into the storage room (vegetable room 24), and a storage room (vegetable) A cool air suction port (vegetable chamber suction port 46) for returning the cool air cooled in the chamber 24) to the cooler 30, and a mist spraying means 67 for spraying mist into the storage container (mainly the lower storage container 64). The cold air from the cold air outlet (vegetable room outlet 45) The container (lower storage container 64, upper storage container 65) is introduced into the storage container (lower storage container 64, upper storage container 65) from a location close to the mist spraying means 67 of the storage container (lower storage container 64, upper storage container 65). Container 65) The storage container (lower storage container 64, upper storage) that would otherwise be transferred from the cold air intake (vegetable room intake 46) to the cooler 30 as it is. Humidity in the container 65) is efficiently recovered by the mist spraying means 67 and returned again into the storage container (lower storage container 64, upper storage container 65), whereby the storage container (lower storage container 64, upper storage container 65). The inside can be sufficiently humidified to maintain the freshness of the vegetables.
また、本実施の形態においては、ミスト噴霧手６７段近傍にミストを噴霧する空間である収納容器（主に下段収納容器６４）の中から漏れ出る冷気の量が最も多くなる冷気流出部を設けることとした（収納容器がミスト噴霧手段６７近傍に冷気流出部を有する）ものであり、収納容器（主に下段収納容器６４）内からの湿気によりミスト噴霧手段６７近傍を高湿化し、効率よく結露回収することができる。 Further, in the present embodiment, a cold air outflow portion in which the amount of cold air leaking from the storage container (mainly the lower storage container 64), which is a space for spraying mist, is provided near the 67th stage of the mist sprayer. (The storage container has a cold air outflow portion in the vicinity of the mist spraying means 67), and the humidity in the vicinity of the mist spraying means 67 is increased by moisture from inside the storage container (mainly the lower storage container 64). Condensation can be collected.
また、本実施の形態においては、収納容器を上段収納容器６５と下段収納容器６４とから構成し、冷気流出部を上段収納容器６５と下段収納容器６４との間隙に設けた（間隙で構成した）ものであり、葉野菜等を収納することが多く水分の蒸散が多い下段収納容器６４からの湿気をミスト噴霧手段６７近傍に効率良く集中させ、ミスト噴霧手段６７により回収しやすくすることができる。 Further, in the present embodiment, the storage container is composed of the upper storage container 65 and the lower storage container 64, and the cool air outflow portion is provided in the gap between the upper storage container 65 and the lower storage container 64 (configured by the gap). The moisture from the lower storage container 64 that stores leafy vegetables and the like and has a large amount of moisture transpiration can be efficiently concentrated in the vicinity of the mist spraying means 67 and can be easily collected by the mist spraying means 67. .
また、本実施の形態においては、下段収納容器６４背面の上端に凹部６９を設けたものであり、シールされた厳密な区画を設ける必要がなく、簡単な構成で冷気流出部を構成することができる。これにより、下段収納容器６４内の湿気によりミスト噴霧手段６７近傍を高湿化することができ、湿気をミスト噴霧手段６７により回収しやすくすることができる。 Further, in the present embodiment, the recess 69 is provided at the upper end of the back surface of the lower storage container 64, and it is not necessary to provide a sealed strict compartment, and the cold air outflow portion can be configured with a simple configuration. it can. Thereby, the humidity in the mist spraying means 67 can be increased by the humidity in the lower storage container 64, and the moisture can be easily collected by the mist spraying means 67.
なお、本実施の形態においては、収納容器（下段収納容器６４、上段収納容器６５）の中から漏れ出る冷気の量が最も多くなる冷気流出部を収納容器（下段収納容器６４）の壁面に設けた凹部６９として説明を行ったが、例えば、冷気流出部を収納容器（下段収納容器６４）に設けた開口孔としてもよい。 In the present embodiment, a cold air outflow portion that maximizes the amount of cold air that leaks from the storage containers (lower storage container 64, upper storage container 65) is provided on the wall surface of the storage container (lower storage container 64). However, for example, the cold air outflow portion may be an opening provided in the storage container (lower storage container 64).
なお、本実施の形態においては、下段収納容器６４内から下段収納容器６４外へ流出する冷気の量が最も多い冷気流出部として、下段収納容器６４の背面上端よりも低く形成されている凹部６９としたが、収納容器に別の目的で最も低い箇所を設けたとしても、その箇所が下段収納容器６４内から下段収納容器６４外へ流出する冷気の量が最も多い箇所とならない場合には、冷気流出部とせず、実質的に下段収納容器６４内から下段収納容器６４外へ流出する冷気の量が最も多い箇所が冷気流出部であるとする。 In the present embodiment, a recessed portion 69 formed lower than the rear upper end of the lower storage container 64 as the cold air outflow portion having the largest amount of cool air flowing out from the lower storage container 64 to the outside of the lower storage container 64. However, even if the storage container is provided with the lowest location for another purpose, if that location is not the location where the amount of cold air flowing out of the lower storage vessel 64 from the lower storage vessel 64 is the largest, It is assumed that the cold air outflow portion is the portion where the amount of the cold air flowing out of the lower storage container 64 from the lower storage container 64 is not the cold air outflow portion.
また、下段収納容器６４内から下段収納容器６４外へ流出する冷気の量が最も多い冷気流出部は下段収納容器６４には上段収納容器６５と下段収納容器６４との隙間が最も大きい箇所としたが、例えば、上段収納容器６５側にミストを噴霧する際には上段収納容器６５と、その上部の壁面もしくは上段収納容器６５との隙間を冷気流出部としてもよく、本実施の形態の配置関係にとらわれず、収納容器（下段収納容器６４、上段収納容器６５）内から収納容器（下段収納容器６４、上段収納容器６５）外へ流出する冷気の量が最も多い箇所を冷気流出部としてその近傍にミスト噴霧手段６７を備えるのが本発明の目的である。 Further, the cold air outflow portion where the amount of cold air flowing out from the lower storage container 64 to the outside of the lower storage container 64 is the place where the gap between the upper storage container 65 and the lower storage container 64 is the largest in the lower storage container 64. However, for example, when the mist is sprayed on the upper storage container 65 side, a gap between the upper storage container 65 and the upper wall surface or the upper storage container 65 may be used as a cold air outflow portion. A portion where the amount of cool air flowing out from the storage container (lower storage container 64, upper storage container 65) to the outside of the storage container (lower storage container 64, upper storage container 65) is the cold air outflow portion in the vicinity. It is an object of the present invention to provide the mist spraying means 67 on the mist.
また、本実施の形態においては、ミスト噴霧手段６７に超音波方式を用いており、粒子径数μｍの微細なミストを発生させることができる。 In the present embodiment, an ultrasonic method is used for the mist spraying means 67, and fine mist having a particle diameter of several μm can be generated.
また、本実施の形態においては、ミスト噴霧手段６７に静電霧化方式を用いてもよく、粒子径数ｎｍから数μｍの微細なミストを発生させることができる。 In the present embodiment, an electrostatic atomization method may be used for the mist spraying means 67, and fine mist having a particle diameter of several nm to several μm can be generated.
（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である。図５は、同実施の形態の冷蔵庫における貯蔵室内を示す斜視図である。図２は、実施の形態１における冷蔵庫の縦断面図であるが、実施の形態２においても同様の構成であるので、以下図２、図４、図５を用いて説明する。
(Embodiment 2)
FIG. 4 is a front view of the refrigerator in the second embodiment of the present invention. FIG. 5 is a perspective view showing a storage room in the refrigerator according to the embodiment. FIG. 2 is a longitudinal sectional view of the refrigerator according to the first embodiment. Since the same configuration is used in the second embodiment, the following description will be given with reference to FIGS. 2, 4, and 5.
図２、図４、図５に示すように、冷蔵庫本体１は、外箱１８と、内箱１９と、外箱１８と内箱１９とで形成される空間に発泡充填される硬質発泡ウレタンなどの発泡断熱材２０とからなり、周囲と断熱され、複数の貯蔵室に区分されている。最上段に第一の貯蔵室としての冷蔵室２１、その冷蔵室２１の下部に第四の貯蔵室としての切替室２２と第五の貯蔵室としての製氷室２３が横並びに設けられ、その切替室２２と製氷室２３の下部に第二の貯蔵室としての野菜室２４、そして最下部に第三の貯蔵室としての冷凍室２５が配置される構成となっている。 As shown in FIGS. 2, 4, and 5, the refrigerator main body 1 includes an outer box 18, an inner box 19, a hard foam urethane that is foam-filled in a space formed by the outer box 18 and the inner box 19, and the like. The foam insulation material 20 is insulated from the surroundings and divided into a plurality of storage rooms. A refrigeration room 21 as a first storage room is provided at the top, and a switching room 22 as a fourth storage room and an ice making room 23 as a fifth storage room are provided side by side at the lower part of the refrigeration room 21. A vegetable room 24 as a second storage room is disposed below the chamber 22 and the ice making room 23, and a freezer room 25 as a third storage room is disposed at the bottom.
冷蔵室２１は冷蔵保存のために凍らない温度を下限に通常１℃〜５℃としている。また、野菜室２４は冷蔵室２１と同等もしくは若干高い温度設定の２℃〜７℃とすることが多い。低温にするほど葉野菜の鮮度を長期間維持することが可能である。冷凍室２５は冷凍温度帯に設定されており、冷凍保存のために通常−２２℃〜−１５℃で設定されているが、冷凍保存状態の向上のために、例えば−３０℃や−２５℃の低温で設定されることもある。 The refrigerator compartment 21 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage. In addition, the vegetable room 24 is often set to 2 ° C. to 7 ° C. which is the same as or slightly higher than the refrigerated room 21. The lower the temperature, the longer the freshness of the leafy vegetables can be maintained. The freezer compartment 25 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature.
切替室２２は、１℃〜５℃で設定される冷蔵、２℃〜７℃で設定される野菜、通常−２２℃〜−１５℃で設定される冷凍の温度帯以外に、冷蔵温度帯から冷凍温度帯の間で予め設定された温度帯に切り替えることができる。例えば、ソフト冷凍（概ね−１２℃〜−６℃程度）、パーシャルフリージング（概ね−５℃〜−１℃程度）、チルド（概ね−１℃〜１℃程度）等の冷蔵と冷凍の間の温度帯である。切替室２２は製氷室２３に並設された独立扉を備えた貯蔵室であり、引き出し式の扉を備えることが多い。 The switching chamber 22 is from a refrigeration temperature zone, in addition to refrigeration set at 1 ° C. to 5 ° C., vegetables set at 2 ° C. to 7 ° C., and freezing temperature zones normally set at −22 ° C. to −15 ° C. It is possible to switch to a preset temperature zone between the freezing temperature zones. For example, temperature between refrigeration and freezing such as soft freezing (approximately -12 ° C to -6 ° C), partial freezing (approximately -5 ° C to -1 ° C), chilled (approximately -1 ° C to 1 ° C) It is a belt. The switching chamber 22 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 23, and is often provided with a drawer-type door.
なお、本実施の形態では切替室２２を冷蔵、冷凍の温度帯までを含めた貯蔵室としているが、冷蔵は冷蔵室２１、野菜室２４、冷凍は冷凍室２５に委ねて、冷蔵と冷蔵の内間の上記温度帯のみの切替に特化した貯蔵室としてももちろん構わない。 In the present embodiment, the switching room 22 is a storage room including the refrigeration and freezing temperature zones. However, the refrigeration is performed in the refrigeration room 21, the vegetable room 24, and the freezing is performed in the freezing room 25. Of course, the storage room may be specialized for switching only the above temperature range.
製氷室２３は、冷蔵室２１内の貯水タンク（図示せず）から送られた水で室内上部に設けられた自動製氷機（図示せず）で氷を作り、室内下部に配置した貯氷容器（図示せず）に貯蔵しておくスペースであり、切替室２２に並設された間口の小さい独立扉を備えた貯蔵室であり、引き出し式の扉を備えることが多い。 The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 21, and an ice storage container ( (Not shown) is a storage room that is a storage room provided with an independent door with a small frontage provided in parallel with the switching room 22, and often has a drawer-type door.
冷蔵庫本体１の天面部は冷蔵庫の背面方向に向かって階段状に凹みを設けた形状であり、この階段状の凹部に機械室２６を形成して圧縮機２７、水分除去を行うドライヤ（図示せず）等の冷凍サイクルの高圧側の構成部品が収納されている。すなわち、圧縮機２７を配設する機械室２６は、冷蔵室２１内の最上部の後方領域に食い込んで形成されることになる。手が届きにくくデッドスペースとなっていた冷蔵庫本体１の最上部の貯蔵室の後方領域に機械室２６を設けて圧縮機２７を配置することにより、従来の冷蔵庫で、使用者が使い易い冷蔵庫本体１の最下部にあった機械室のスペースを貯蔵室容量として有効に転化することができ、収納性や使い勝手を大きく改善することができる。 The top surface portion of the refrigerator main body 1 has a stepped recess shape toward the back side of the refrigerator. A machine chamber 26 is formed in the stepped recess portion to form a compressor 27 and a dryer for removing moisture (not shown). The components on the high pressure side of the refrigeration cycle are stored. That is, the machine room 26 in which the compressor 27 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 21. A refrigerator main body that is easy to use by a conventional refrigerator by providing a machine room 26 in the rear region of the uppermost storage room of the refrigerator main body 1 that has been difficult to reach and is a dead space. The space in the machine room at the bottom of 1 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.
なお、本実施の形態における、以下に述べる発明の要部に関する事項は、従来一般的であった冷蔵庫本体１の最下部の貯蔵室の後方領域に機械室を設けて圧縮機２７を配置するタイプの冷蔵庫に適用しても構わない。 In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 27 is disposed by providing a machine room in the rear region of the lowermost storage room of the refrigerator main body 1 that has been conventionally common. It may be applied to other refrigerators.
野菜室２４と冷凍室２５の背面には冷却室２８が設けられ、冷却室２８は断熱性を有する第一の冷却ダクト２９により野菜室２４及び冷凍室２５から仕切られている。冷却室２８内には、代表的なものとしてフィンアンドチューブ式の冷却器３０が配設されており、冷却器３０の上部空間には強制対流方式により冷却器３０で冷却した冷気を冷蔵室２１、切替室２２、製氷室２３、野菜室２４、冷凍室２５に送風する冷却ファン３１が配置され、冷却器３０の下部空間には冷却時に冷却器３０や冷却ファン３１に付着する霜を除霜する装置としてのガラス管製のラジアントヒータ３２が設けられている。 A cooling room 28 is provided on the back of the vegetable room 24 and the freezing room 25, and the cooling room 28 is partitioned from the vegetable room 24 and the freezing room 25 by a first cooling duct 29 having heat insulation properties. In the cooling chamber 28, a fin-and-tube type cooler 30 is disposed as a typical example. In the upper space of the cooler 30, the cold air cooled by the cooler 30 by the forced convection method is stored in the refrigerating chamber 21. A cooling fan 31 that blows air to the switching chamber 22, the ice making chamber 23, the vegetable chamber 24, and the freezing chamber 25 is disposed, and frost that adheres to the cooler 30 and the cooling fan 31 during cooling is defrosted in the lower space of the cooler 30. A radiant heater 32 made of a glass tube is provided as an apparatus for performing the above operation.
第一の冷却ダクト２９の外周には冷気、水漏れがないように、例えば軟質フォーム等のシール材が貼り付けられている。冷凍室２５と野菜室２４を仕切る第一の仕切壁３３は発泡ポリスチレン等の断熱材で成形され取り外し可能である。 For example, a sealing material such as flexible foam is attached to the outer periphery of the first cooling duct 29 so as not to cause cold air and water leakage. The first partition wall 33 that partitions the freezer compartment 25 and the vegetable compartment 24 is formed of a heat insulating material such as expanded polystyrene and is removable.
切替室２２、製氷室２３と野菜室２４を仕切る第二の仕切壁３４は、側面断面から見て略Ｌ字形の第二の仕切壁上板３５と平板状の第二の仕切壁下板３６で外郭を構成され、第二の仕切壁３４の内部は硬質発泡ウレタンなどの発泡断熱材２０が発泡充填されている。この時、前述したように野菜室２４の上方には野菜室２４よりも低い温度に調整された切替室２２と製氷室２３が配置されており、野菜室２４は上方から間接的に冷却され第二の仕切壁下板３６は冷却板として機能する。 The second partition wall 34 that divides the switching chamber 22, the ice making chamber 23, and the vegetable chamber 24 includes a substantially L-shaped second partition wall upper plate 35 and a flat plate-like second partition wall lower plate 36 as viewed from the side cross section. The second partition wall 34 is filled with foam heat insulating material 20 such as hard foam urethane. At this time, as described above, the switching chamber 22 and the ice making chamber 23 adjusted to a temperature lower than that of the vegetable chamber 24 are disposed above the vegetable chamber 24, and the vegetable chamber 24 is indirectly cooled from above and is secondly cooled. The second partition wall lower plate 36 functions as a cooling plate.
略Ｌ字形の第二の仕切壁上板３５の背面には、発泡ポリスチレン等の断熱材で成形された背面仕切壁３７、冷蔵室２１と切替室２２、製氷室２３を冷却するための冷気が送風される風路を形成した第二の冷却ダクト３８が設けられ、内部には冷蔵室２１と切替室２２の冷気の流れをそれぞれ調節するダンパー装置としてのツインダンパー３９が設けられており、冷蔵室２１と切替室２２の冷気の流れをそれぞれ調節するダンパー装置をツインダンパー化することにより収容スペースのコンパクト化とコスト削減を図っている。 On the back surface of the substantially L-shaped second partition wall upper plate 35, there is cold air for cooling the back partition wall 37 formed of a heat insulating material such as expanded polystyrene, the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23. A second cooling duct 38 that forms an air passage to be blown is provided, and a twin damper 39 as a damper device that adjusts the flow of the cold air in the refrigerating chamber 21 and the switching chamber 22 is provided in the inside thereof. The damper device that adjusts the flow of the cold air in the chamber 21 and the switching chamber 22 is made into a twin damper, so that the accommodation space is made compact and the cost is reduced.
冷蔵室２１と切替室２２、製氷室２３を仕切る第三の仕切壁４０は、第三の仕切壁上板４０ａと第三の仕切壁下板４２とで外郭を構成され、第三の仕切壁４０の内部には硬質発泡ウレタンなどの発泡断熱材２０が発泡充填されている。冷蔵室２１の背面には冷蔵室２１の庫内に冷気を送風するための第三の冷却ダクト４３が取り付けられており、第三の冷却ダクト４３と第二の冷却ダクト３８との接合面には、冷気、水漏れがないようにシール材が貼り付けられている。また、第一の冷却ダクト２９と第一の仕切壁３３と第三の冷却ダクト４３は取り外しが可能であるが、第二の仕切壁３４と第二の冷却ダクト３８と第三の仕切壁４０は冷蔵庫本体１のウレタン発泡前に取り付けられたものであるため取り外しができず、発泡断熱材２０によって冷蔵庫本体１と強固に接合されている。 The third partition wall 40 that partitions the refrigerator compartment 21, the switching chamber 22, and the ice making chamber 23 is configured by the third partition wall upper plate 40a and the third partition wall lower plate 42, and the third partition wall. 40 is filled with foam heat insulating material 20 such as hard foam urethane. A third cooling duct 43 for blowing cool air into the refrigerator compartment 21 is attached to the rear surface of the refrigerator compartment 21, and a joint surface between the third cooling duct 43 and the second cooling duct 38 is attached. The seal material is affixed to prevent cold air and water leakage. Further, the first cooling duct 29, the first partition wall 33, and the third cooling duct 43 can be removed, but the second partition wall 34, the second cooling duct 38, and the third partition wall 40 can be removed. Since it is attached before urethane foaming of the refrigerator body 1, it cannot be removed and is firmly joined to the refrigerator body 1 by the foam heat insulating material 20.
また、第一の冷却ダクト２９の内部には冷蔵室２１と、切替室２２と、製氷室２３と、冷凍室２５を冷却するための冷気を送風する風路４１が設けられている。さらに、冷蔵室２１からの冷気を冷却器３０へ戻す冷蔵室用帰還風路４２と、切替室２２からの冷気を冷却器３０へ戻す切替室用帰還風路４３と、製氷室２３からの冷気を冷却器３０へ戻す製氷室用帰還風路４４とを備えている。さらに、第一の冷却ダクト２９の上部には、冷蔵室用帰還風路４２を流れる冷気の一部を野菜室２４内に導入する野菜室用吐出口４５が設けられている。この野菜室用吐出口４５は収納容器を冷却する冷却手段として構成されているものである。また、第一の冷却ダクト２９の野菜室２４下部にあたる位置には野菜室２４からの冷気を再び冷蔵室用帰還風路４２へと戻す野菜室用吸込口４６が設けられており、第一の冷却ダクト２９の冷凍室２５にあたる部位には、風路４１からの冷気を冷凍室２５内へ送風する第一の冷凍室用吐出口４７と、第二の冷凍室用吐出口４８が設けられている。また、第一の冷却ダクト２９の下部には冷凍室２５からの冷気を冷却器３０へ戻す冷凍室用吸込口４９が設けられている。 Further, inside the first cooling duct 29, there are provided a refrigerator compartment 21, a switching chamber 22, an ice making chamber 23, and an air passage 41 for blowing cool air for cooling the freezer compartment 25. Furthermore, the return air path 42 for the refrigerating room returning the cool air from the refrigerating room 21 to the cooler 30, the return air path 43 for the switching room returning the cool air from the switching room 22 to the cooler 30, and the cool air from the ice making room 23. And an ice making chamber return air passage 44 for returning the air to the cooler 30. Furthermore, a vegetable room discharge port 45 through which a part of the cold air flowing through the refrigerating room return air passage 42 is introduced into the vegetable room 24 is provided above the first cooling duct 29. The vegetable room discharge port 45 is configured as a cooling means for cooling the storage container. In addition, a vegetable room suction port 46 for returning the cold air from the vegetable room 24 to the return air passage 42 for the refrigeration room is provided at a position below the vegetable room 24 of the first cooling duct 29. A part corresponding to the freezer compartment 25 of the cooling duct 29 is provided with a first freezer compartment outlet 47 and a second freezer compartment outlet 48 for blowing cool air from the air passage 41 into the freezer compartment 25. Yes. A freezer compartment inlet 49 for returning the cool air from the freezer compartment 25 to the cooler 30 is provided below the first cooling duct 29.
第二の冷却ダクト３８には、ツインダンパー３９を介して冷気を冷蔵室２１へ送風する冷蔵室用風路５０と、同じくツインダンパー３９を介して冷気を切替室２２へ送風する切替室用風路５１と、切替室７５内へ冷気を吐出する切替室用吐出口５２と、風路４１から直接に通じ、冷気を製氷室２３へ送風する製氷室用風路５３と、製氷室２３内へ冷気を吐出する製氷室用吐出口５４を備えている。また、切替室２２からの冷気を冷却器３０へ戻す切替室用帰還風路５５と、製氷室２３からの冷気を冷却器３０へ戻す製氷室用帰還風路５６と、冷蔵室２１からの冷気を冷却器３０へ戻す冷蔵室用帰還風路５７とを備えている。 The second cooling duct 38 includes a refrigerating chamber air passage 50 for blowing cold air to the refrigerating chamber 21 through the twin damper 39 and a switching chamber air for blowing cold air to the switching chamber 22 through the twin damper 39. A path 51, a switching chamber discharge port 52 that discharges cold air into the switching chamber 75, an ice making chamber air path 53 that communicates directly from the air path 41 and blows cold air to the ice making chamber 23, and into the ice making chamber 23. An ice making chamber discharge port 54 for discharging cold air is provided. Further, the switching chamber return air passage 55 for returning the cold air from the switching chamber 22 to the cooler 30, the ice making chamber return air passage 56 for returning the cold air from the ice making chamber 23 to the cooler 30, and the cold air from the refrigerator compartment 21. Is provided with a return air passage 57 for the refrigerator compartment for returning the air to the cooler 30.
第三の冷却ダクト４３には、冷気を冷蔵室２１内へ導く冷蔵室用風路５８と、冷蔵室用風路５８からの冷気を冷蔵室２１へ吐出する複数の冷蔵室用吐出口５９が設けられている。また、第三の冷却ダクト４３の下部には冷蔵室２１からの冷気を冷却器３０へと戻す冷蔵室用吸込口６０と、冷蔵室用帰還風路６１とが設けられている。 The third cooling duct 43 has a refrigeration chamber air passage 58 for introducing cold air into the refrigeration chamber 21 and a plurality of refrigerating chamber outlets 59 for discharging the cold air from the refrigeration chamber air passage 58 to the refrigeration chamber 21. Is provided. Further, at the lower part of the third cooling duct 43, there are provided a refrigerator compartment suction port 60 for returning the cool air from the refrigerator compartment 21 to the cooler 30, and a refrigerator compartment return air passage 61.
野菜室２４は、その前面開口部を開放可能な扉６２にて外気の流入が無いように閉塞されている。この扉６２には左右一対で野菜室２４内に延伸された板状のスライドレール６３が設けられており、この上に下段収納容器６４が載置されている。扉６２はこのスライドレール６３の可動方向に沿って水平方向に引き出して開閉され、それに伴ない下段収納容器６４も稼動して引き出される。さらに、下段収納容器６４には上段収納容器６５が載置されており、下段収納容器６４と同時に可動することになる。この時、上段収納容器６５の底面面積は下段収納容器６４の底面面積よりも小さく構成されている。本実施の形態ではこの上段収納容器６５と下段収納容器６４を前後方向に空間を設けて配置し、この空間内に比較的背の高い食品、例えばＰＥＴボトルや白菜等の長物野菜を収納可能としている。 The vegetable compartment 24 is closed so that there is no inflow of outside air by a door 62 that can open its front opening. The door 62 is provided with a pair of left and right plate-like slide rails 63 extending into the vegetable compartment 24, and a lower storage container 64 is placed thereon. The door 62 is opened and closed horizontally by being pulled along the movable direction of the slide rail 63, and the lower storage container 64 is also operated and pulled out. Further, an upper storage container 65 is placed on the lower storage container 64 and is movable simultaneously with the lower storage container 64. At this time, the bottom surface area of the upper storage container 65 is configured to be smaller than the bottom surface area of the lower storage container 64. In this embodiment, the upper storage container 65 and the lower storage container 64 are arranged with a space in the front-rear direction, and a relatively tall food such as a long vegetable such as a PET bottle or Chinese cabbage can be stored in this space. Yes.
また、野菜室２４内には蓋６６が配置されており、扉６２が閉じている場合には上段収納容器６５の上面開放部を閉塞する。さらに、扉６２の開放時には蓋６６は野菜室２４内に残り、引き出されることはない。 Further, a lid 66 is disposed in the vegetable compartment 24, and when the door 62 is closed, the upper surface opening portion of the upper storage container 65 is closed. Further, when the door 62 is opened, the lid 66 remains in the vegetable compartment 24 and is not pulled out.
第一の冷却ダクト２９の一部にはミスト噴霧手段６７が配置され、下段収納容器６４と上段収納容器６５との間隙近傍に位置している。 A mist spraying means 67 is disposed in a part of the first cooling duct 29 and is located in the vicinity of the gap between the lower storage container 64 and the upper storage container 65.
また、ミスト噴霧手段６７は野菜室２４の左右方向の中心線２４ｂよりも野菜室用吸込口４６側に配置されたものである。 The mist spraying means 67 is disposed closer to the vegetable room suction port 46 than the center line 24 b in the left-right direction of the vegetable room 24.
第一の冷却ダクト２９の一部にはミスト噴霧手段６７が配置され、ミスト噴霧手段６７の上端６７ａは下段収納容器６４の最上端６４ａよりも下方にある。 A mist spraying means 67 is disposed in a part of the first cooling duct 29, and the upper end 67 a of the mist spraying means 67 is below the uppermost end 64 a of the lower storage container 64.
また、下段収納容器６４には上段収納容器６５と下段収納容器６４との隙間が最も大きい冷気流出部である凹部６９を設けており、この下段収納容器６４の凹部６９はミスト噴霧手段６７と対向する位置に設けられている。 Further, the lower storage container 64 is provided with a recess 69 which is a cool air outflow portion where the gap between the upper storage container 65 and the lower storage container 64 is the largest. The recess 69 of the lower storage container 64 is opposed to the mist spraying means 67. It is provided in the position to do.
このように、ミスト噴霧手段６７と対向する位置の下段収納容器６４の上端６４ｂは、ミスト噴霧手段６７の噴霧口７０よりも上方に位置している。 Thus, the upper end 64 b of the lower storage container 64 at a position facing the mist spraying means 67 is located above the spray port 70 of the mist spraying means 67.
さらに、ミスト噴霧手段６７の左側には、野菜室２４内に略水平方向に延伸された風向リブ６８が第一の冷却ダクト２９と一体に成形されている。この風向リブ６８は下段収納容器６４の背面上端よりも上方に位置しており、上段収納容器６５、下段収納容器６４と第一の冷却ダクト２９との間の空間を上下に仕切っている。この時、風向リブ６８と上段収納容器６５、及び風向リブ６８と下段収納容器６４は前後方向にドア開閉に際して互いに当接することのない程度の隙間が設けられている。なお、本実施の形態では風向リブ６８は下段収納容器６４の背面上端よりも上方に位置するとしたが、下段収納容器６４と同一の高さであってもよい。また、本実施の形態ではミスト噴霧手段６７を右側に配置し風向リブ６８を左側に配置するとしたが、このミスト噴霧手段６７と風向リブ６８の位置関係は左右が入れ替わっても良い。 Further, on the left side of the mist spraying means 67, a wind direction rib 68 extending substantially horizontally in the vegetable compartment 24 is formed integrally with the first cooling duct 29. The wind direction ribs 68 are located above the upper end of the lower surface of the lower storage container 64 and partition the space between the upper storage container 65 and the lower storage container 64 and the first cooling duct 29 vertically. At this time, the airflow direction rib 68 and the upper storage container 65, and the airflow direction rib 68 and the lower storage container 64 are provided with gaps that do not contact each other when the door is opened and closed. In the present embodiment, the wind direction ribs 68 are positioned above the upper rear end of the lower storage container 64, but may be the same height as the lower storage container 64. In the present embodiment, the mist spraying means 67 is arranged on the right side and the wind direction ribs 68 are arranged on the left side. However, the positional relationship between the mist spraying means 67 and the wind direction ribs 68 may be interchanged.
下段収納容器６４の背面上端の一部でミスト噴霧手段６７の近傍には、凹部６９が設けられており、下段収納容器６４の背面上端よりも低く形成されている。なお、凹部６９の上下左右の位置についてはミスト噴霧手段６７の噴霧口７０が下段収納容器６４の背面で隠れないように形成すればよい。 A recess 69 is provided in the vicinity of the mist spraying means 67 at a part of the rear upper end of the lower storage container 64, and is formed lower than the rear upper end of the lower storage container 64. Note that the vertical and horizontal positions of the recess 69 may be formed such that the spray port 70 of the mist spraying means 67 is not hidden behind the lower storage container 64.
収納容器からの冷気流出部は、この凹部６９と上段収納容器６５の底面とで形成されることになる。 The cold air outflow portion from the storage container is formed by the recess 69 and the bottom surface of the upper storage container 65.
また、上段収納容器６５にはその一部に複数の空気流通穴７１が設けられている。 The upper storage container 65 is provided with a plurality of air circulation holes 71 in a part thereof.
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、冷凍サイクルの動作について説明する。庫内の設定された温度に応じて制御基板（図示せず）からの信号により冷凍サイクルが動作して冷却運転が行われる。圧縮機２７の動作により吐出された高温高圧の冷媒は、凝縮器（図示せず）にて放熱して凝縮液化し、キャピラリーチューブ（図示せず）に至る。その後、キャピラリーチューブでは圧縮機２７への吸入管（図示せず）と熱交換しながら減圧されて低温低圧の液冷媒となって冷却器３０に至る。冷却ファン３１の動作により、各貯蔵室内の空気と熱交換されて冷却器３０内の冷媒は蒸発気化し、低温の冷気をダンパーなどで供給制御することで各室の所望の冷却を行う。冷却器３０を出た冷媒は吸入管を経て圧縮機２７へと吸い込まれる。 First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 27 dissipates heat in a condenser (not shown), condenses and liquefies, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 27 and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 30. By the operation of the cooling fan 31, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 30 evaporates, and the supply of low-temperature cold air with a damper or the like is controlled to perform desired cooling of each chamber. The refrigerant exiting the cooler 30 is sucked into the compressor 27 through the suction pipe.
各貯蔵室内の空気と熱交換されて冷却器３０には、各貯蔵室内空気と熱交換した時に水分が付着し霜となる。制御基板（図示せず）から定期的に信号が出力され、圧縮機２７を停止させ、ラジアントヒータ３２に通電し、冷却器３０の除霜を行う。 When the heat is exchanged with the air in each storage chamber and heat is exchanged with the air in each storage chamber, moisture adheres to the cooler 30 and becomes frost. A signal is periodically output from a control board (not shown), the compressor 27 is stopped, the radiant heater 32 is energized, and the cooler 30 is defrosted.
次に冷蔵庫本体１内の冷気の流れについて説明する。冷却ファン３１から送風された冷気は、風路４１を通じ下方と上方に振り分けられて送風される。下方に振り分けられた冷気は、第一の冷凍室用吐出口４７と第二の冷凍室用吐出口４８を通り冷凍室２５内に吐出され、冷凍室２５内の空気と熱交換し冷凍室用吸込口４９を通って冷却室２８に戻る。 Next, the flow of cold air in the refrigerator body 1 will be described. The cool air blown from the cooling fan 31 is distributed downward and upward through the air passage 41 and blown. The cold air distributed downward passes through the first freezer compartment outlet 47 and the second freezer compartment outlet 48 and is discharged into the freezer compartment 25 to exchange heat with the air in the freezer compartment 25. It returns to the cooling chamber 28 through the suction port 49.
冷却ファン３１から送風された冷気の内、上方に振り分けられた冷気は、冷蔵室用風路５０とツインダンパー３９の冷蔵室側を経由して冷蔵室用吐出口５９から冷蔵室２１に至る。また一部は切替室用風路５１とツインダンパー３９の切替室側を経由して切替室用吐出口５２から切替室２２に至る。ここで制御基板（図示せず）から信号を出力しツインダンパーを動作させ、冷気の流れをコントロールし、冷蔵室２１と切替室２２の温度制御を行い所定の温度に庫内温度を調整する。 Of the cool air blown from the cooling fan 31, the cool air distributed upward reaches the refrigerating chamber 21 from the refrigerating chamber discharge port 59 via the refrigerating chamber air passage 50 and the refrigerating chamber side of the twin damper 39. Further, a part reaches the switching chamber 22 from the switching chamber discharge port 52 via the switching chamber air passage 51 and the switching chamber side of the twin damper 39. Here, a signal is output from a control board (not shown) to operate the twin damper, the flow of cold air is controlled, the temperature of the refrigerator compartment 21 and the switching chamber 22 is controlled, and the internal temperature is adjusted to a predetermined temperature.
冷蔵室２１内に送風された冷気は、冷蔵室２１内の空気と熱交換し、冷蔵室用吸込口６０から吸入され、冷蔵室用帰風路６１、冷蔵室用帰還風路５７、冷蔵室用帰還風路４２を通り冷却室２８に戻る。ここで冷蔵室２１の戻り冷気の一部は、冷蔵室用帰還風路４２の途中に設けられた野菜室用吐出口４５により野菜室２４内に流入し、野菜室２４内を冷却することになる。 The cold air blown into the refrigerating room 21 exchanges heat with the air in the refrigerating room 21 and is sucked from the refrigerating room suction port 60 to return to the refrigerating room return passage 61, the refrigerating room return air passage 57, and the refrigerating room. Return to the cooling chamber 28 through the return air passage 42. Here, a part of the return cold air from the refrigerator compartment 21 flows into the vegetable compartment 24 through the vegetable compartment discharge port 45 provided in the middle of the refrigerator compartment return air passage 42 to cool the vegetable compartment 24. Become.
野菜室用吐出口４５から吐出された冷気は、一部が蓋６６と第二の仕切壁３４との間を通り、上段収納容器６５の手前部分から下段収納容器６４の手前部分に入る。さらに再び下段収納容器６４の手前部分から下段収納容器６４の下部と第一の仕切壁３３の間を通り、野菜室用吸込口４６から吸入され、冷蔵室用帰還風路４２に合流する。 Part of the cool air discharged from the vegetable room discharge port 45 passes between the lid 66 and the second partition wall 34 and enters the front portion of the lower storage container 64 from the front portion of the upper storage container 65. Furthermore, it passes again between the lower part of the lower storage container 64 and the first partition wall 33 from the front part of the lower storage container 64 and is sucked from the vegetable room suction port 46 and merges with the return air path 42 for the refrigerator compartment.
一方、野菜室用吐出口４５からは冷気の一部が冷却ダクト２９の壁に沿って下方に吐出され、冷却ダクト２９に一体に形成され、ミスト噴霧手段６７の左側に設けられた風向リブ６８によって風向を変えられ、概ね前方に向かって冷気が流れることになる。前述したように風向リブ６８は下段収納容器６４の背面上端と同じ高さかもしくは上方に位置するため、前方に風向を変えられた冷気は、上段収納容器６５の底面と下段収納容器６４の背面上端との間隙から下段収納容器６４内に入り、内部の収納食品を冷却することになる。 On the other hand, a part of the cold air is discharged downward along the wall of the cooling duct 29 from the vegetable room discharge port 45, is formed integrally with the cooling duct 29, and is provided on the left side of the mist spraying means 67. The wind direction can be changed by this, and the cold air will generally flow forward. As described above, the wind direction rib 68 is located at the same height or above the rear upper end of the lower storage container 64, so that the cold air whose direction has been changed forward is the bottom of the upper storage container 65 and the upper rear end of the lower storage container 64. The product enters the lower storage container 64 through the gap and cools the stored food inside.
下段収納容器６４内部に収納された食品からは、投入時からの時間経過に伴い水分が蒸散する。この時、蒸散した水分を含んだ空気は、下段収納容器６４内に流入した冷気の流れに沿って凹部６９と上段収納容器６５の底面とで区画される冷気流出部から収納容器外に流出し、近傍に配置されたミスト噴霧手段６７へと到達する。ミスト噴霧手段６７は風路４１によりその内部が周囲温度よりも低く冷却されており、ミスト噴霧手段６７内部で空気中の水分が結露することになる。この結露した水を凹部６９と上段収納容器６５の底面とで区画される冷気流出部から収納容器内部にミスト状に噴霧する。結果、収納食品からの蒸散水はミスト噴霧手段６７により、再び収納食品自体に返されることになる。 From the food stored in the lower storage container 64, moisture evaporates as time passes from the time of charging. At this time, the air containing the evaporated water flows out of the storage container from the cold air outflow section defined by the recess 69 and the bottom surface of the upper storage container 65 along the flow of the cold air flowing into the lower storage container 64. The mist spraying means 67 arranged in the vicinity is reached. The inside of the mist spraying means 67 is cooled by the air passage 41 to be lower than the ambient temperature, and moisture in the air is condensed inside the mist spraying means 67. The condensed water is sprayed in the form of a mist from the cold air outflow portion partitioned by the recess 69 and the bottom surface of the upper storage container 65. As a result, the transpiration water from the stored food is returned to the stored food itself again by the mist spraying means 67.
このように、ミスト噴霧手段６７と対向する位置の下段収納容器６４の上端６４ｂは、ミスト噴霧手段６７の噴霧口７０よりも上方に位置している。 Thus, the upper end 64 b of the lower storage container 64 at a position facing the mist spraying means 67 is located above the spray port 70 of the mist spraying means 67.
これによって、ミスト噴霧手段６７が下段収納容器６４の最上端６４ａよりも下部に位置することで下段収納容器内の高湿度の冷気が最上端６４ａから漏れることを抑えることで、ミスト噴霧手段６７が高湿度の雰囲気中に設置された上でさらに、ミスト噴霧手段６７と対向する位置の下段収納容器６４の上端６４ｂは、ミスト噴霧手段６７の噴霧口７０よりも上方に位置していることで、野室用吐出口４５から貯蔵室内に流入した冷気が野菜室用吸込口４６を通って野菜室２４外へと流れる冷気流通経路は流れている冷気の量が多い為に、比較的冷気の流速が早くなり収納容器内の冷気が引っ張られ高湿度の冷気が下段収納容器６４の凹部６９を中心に冷気流通経路上に漏れ出てきて、この凹部６９の対向する位置にミスト噴霧手段６７を配置しているので、収納容器内からの高湿度の冷気を効率良く回収し、ミスト噴霧手段６７に結露させることができ、この結露水を微細ミストに変えて、拡散性の高い微細ミストを再度収納容器内に返すことができ、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 As a result, the mist spraying means 67 is positioned below the uppermost end 64a of the lower storage container 64, so that high-humidity cold air in the lower storage container is prevented from leaking from the uppermost end 64a. Further, the upper end 64b of the lower storage container 64 at a position facing the mist spraying means 67 is located above the spraying port 70 of the mist spraying means 67 after being installed in a high humidity atmosphere. Since the cool air flow path through which the cold air flowing into the storage chamber from the discharge port 45 for the field room flows out of the vegetable room 24 through the suction port 46 for the vegetable room has a large amount of cold air flowing, As a result, the cool air in the storage container is pulled and the high humidity cool air leaks out along the recess 69 of the lower storage container 64 to the cool air flow path, and the mist spraying means 67 is placed at a position opposite to the recess 69. Therefore, it is possible to efficiently collect high-humidity cold air from the storage container and condense it on the mist spraying means 67. This condensed water is changed to fine mist, and the highly diffusible fine mist is again produced. The container can be returned to the container, and the container can be sufficiently humidified with fine mist to maintain the freshness of the vegetables.
収納容器外部へ流出しミスト噴霧手段近傍を通過した冷気は、野菜室用吸込口４６から吸入され、冷蔵室用帰還風路４２に合流する。これら一連の動作でも分かるように野菜室２４は冷蔵室２１の戻り冷気を利用して冷却していることになる。 The cold air that has flowed out of the storage container and passed through the vicinity of the mist spraying means is sucked from the vegetable room suction port 46 and merges with the return air path 42 for the cold room. As can be seen from these series of operations, the vegetable compartment 24 is cooled by using the return cold air from the refrigerator compartment 21.
また、本実施の形態においては、ミスト噴霧手段６７は野菜室２４の左右方向の中心線２４ｂよりも野菜室用吸込口４６側に配置されたものである。 Moreover, in this Embodiment, the mist spraying means 67 is arrange | positioned rather than the center line 24b of the left-right direction of the vegetable compartment 24 at the suction inlet 46 side for vegetable compartments.
これによって、左右方向においてより湿度の高くなる野菜室用吸込口４６側にミスト噴霧手段６７を配置することで、冷気内に含まれる湿気を効率良く回収し、ミスト噴霧手段６７に結露させることができるので、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 Thus, by disposing the mist spraying means 67 on the side of the vegetable room suction port 46 where the humidity becomes higher in the left-right direction, moisture contained in the cold air can be efficiently recovered and condensed on the mist spraying means 67. Therefore, the inside of the storage container can be sufficiently humidified with fine mist to maintain the freshness of the vegetables.
特に、霧化装置が備えられた貯蔵室である野菜室２４へ冷気の流入を行う野菜室用吐出口４５の冷気の風路上において上流に位置するダンパーが閉まっている場合、すなわち野菜室用吐出口４５から冷気の流入が無い場合においては、野菜室２４内の冷気が流出する下流側である野菜室用吸込口４６の下流側には風路の下流側と連通しているので、野菜室用吐出口４５から冷気の流入が無い場合であってもわずかではあるが野菜室２４内から野菜室用吸込口４６へと冷気の流れが発生する。よって、この状態においても、野菜室２４の左右方向の中心線２４ｂよりも野菜室用吸込口４６側が高湿度の雰囲気となり、より霧化装置近傍で結露を行いやすい環境となるので、野菜室２４の左右方向の中心線２４ｂよりも野菜室用吸込口４６側にミスト噴霧手段６７を配置することで冷気内に含まれる湿気を効率良く回収し、ミスト噴霧手段６７に結露させることができるので、収納容器内を微細ミストで十分に加湿し、野菜の鮮度を維持することができる。 In particular, when the damper located upstream on the cold air flow path of the vegetable room discharge port 45 that allows cold air to flow into the vegetable room 24, which is a storage room equipped with an atomizer, is closed, that is, the vegetable room discharge. When there is no inflow of cold air from the outlet 45, the downstream side of the vegetable room suction port 46, which is the downstream side of the cold air in the vegetable room 24, communicates with the downstream side of the air passage. Even if there is no inflow of cold air from the discharge outlet 45, a flow of cold air is generated from the inside of the vegetable compartment 24 to the suction inlet 46 for the vegetable compartment, although it is slight. Therefore, even in this state, the vegetable room suction port 46 side has a higher humidity atmosphere than the center line 24b in the left-right direction of the vegetable room 24, and an environment in which condensation is more likely to occur near the atomizing device is obtained. Since the mist spraying means 67 is arranged closer to the vegetable room suction port 46 than the center line 24b in the left-right direction, moisture contained in the cold air can be efficiently recovered and condensed on the mist spraying means 67. The inside of the storage container can be sufficiently humidified with a fine mist to maintain the freshness of vegetables.
上段収納容器６５には蓋６６がその上方開口部を閉塞しており、収納食品に直接冷気があたり、乾燥することを防いでいる。また、下段収納容器６４と上段収納６５の前後方向での空間には、一般にＰＥＴボトル等の飲料が置かれることが多く、この部分には冷気が直接触れることになり、冷却スピードを確保している。 A lid 66 closes the upper opening of the upper storage container 65 so that the stored food is directly exposed to cold air and prevented from drying. Also, in the space in the front-rear direction of the lower storage container 64 and the upper storage container 65, generally beverages such as PET bottles are often placed, and cold air is directly touched on this part to ensure the cooling speed. Yes.
切替室２２に送風された冷気は、切替室２２内の空気と熱交換し切替室用帰還風路５５を通り冷却室２８に戻る。 The cool air blown into the switching chamber 22 exchanges heat with the air in the switching chamber 22 and returns to the cooling chamber 28 through the switching chamber return air passage 55.
なお、収納容器外に流出する冷気の風量は少量であり、上記のミスト噴霧を妨げることはない。また、ミスト噴霧に必要な程度の水分をミスト噴霧手段６７に供給することは可能である。 Note that the amount of cool air flowing out of the storage container is small, and does not interfere with the mist spray. Further, it is possible to supply the mist spraying means 67 with water necessary for mist spraying.
この時噴霧されるミスト粒子は、例えば０．００５μｍ〜２０μｍ程度であり非常に微細なものである。なお、ミスト噴霧手段６７には、例えば超音波により水を微粒子化して噴霧するもの、静電霧化方式によるもの、ポンプ方式で噴霧するもの等を用いればよい。 The mist particles sprayed at this time are, for example, about 0.005 μm to 20 μm and very fine. The mist spraying means 67 may be, for example, one that atomizes and sprays water with ultrasonic waves, one that uses an electrostatic atomization system, one that sprays using a pump system, or the like.
このようにして食品からの水分の蒸散−結露−ミスト噴霧のサイクルを繰り返す訳であるが、本実施の形態によれば、ＰＥＴボトルのような冷却スピードが気になる食品は吐出冷気で直接的に冷却し、かつ、葉野菜のように萎れが気になる食品についてはミスト噴霧により鮮度を維持することができる。 In this way, the cycle of moisture transpiration from the food, condensation, and mist spraying is repeated. According to the present embodiment, the food that is concerned about the cooling speed, such as a PET bottle, is directly discharged cold. The freshness can be maintained by mist spraying for foods that are cooled down and wilted like leafy vegetables.
この時、図示はしないが野菜室２４内部の側壁はヒータ等の加熱手段で適度に加熱されており、収納容器外へ拡散したミスト粒子および、野菜からの蒸散水が側壁に結露することを防止している。 At this time, although not shown, the side wall inside the vegetable compartment 24 is appropriately heated by a heating means such as a heater to prevent mist particles diffused out of the storage container and transpiration water from the vegetables from condensing on the side wall. is doing.
また、上段収納容器６５の空気流通穴７１は、上段収納容器６５内の過剰な結露を防ぐ役割をはたしている。 The air circulation hole 71 of the upper storage container 65 plays a role of preventing excessive dew condensation in the upper storage container 65.
なお、第一の冷却ダクト２９のミスト噴霧手段６７の取付部をその周囲よりも薄い壁厚に設定すればより局部的にミスト噴霧手段６７を冷却することができる。 In addition, if the attachment part of the mist spraying means 67 of the 1st cooling duct 29 is set to wall thickness thinner than the circumference | surroundings, the mist spraying means 67 can be cooled more locally.
また、第二の仕切壁下板３６は冷却板として機能し、収納容器内を冷却するのであるが、第二の仕切壁下板３６は上段収納容器６５よりも大きく構成され、ＰＥＴボトル等の収納部との間に障害物が無い為、ＰＥＴボトル等の飲料を比較的早く冷却することが可能である。 In addition, the second partition wall lower plate 36 functions as a cooling plate and cools the inside of the storage container. However, the second partition wall lower plate 36 is configured to be larger than the upper storage container 65 and is formed of a PET bottle or the like. Since there is no obstacle between the container and the beverage, it is possible to cool a beverage such as a PET bottle relatively quickly.
以上のように、本実施の形態においては、冷蔵室２１、切替室２２、製氷室２３、野菜室２４、冷凍室２５等の貯蔵室を有する冷蔵庫本体１と、貯蔵室（野菜室２４）の前面開口部を閉塞する扉６２と、貯蔵室（野菜室２４）内に設けられ、食品を収納し互いに上下に配置される複数の収納容器（下段収納容器６４、上段収納容器６５）と、貯蔵室（野菜室２４等）内を冷却する冷気を生成する冷却器３０と、貯蔵室（野菜室２４）内に冷気を吐出する冷気吐出口（野菜室用吐出口４５）と、貯蔵室（野菜室２４）内を冷却した冷気を冷却器３０に帰還させる冷気吸込口（野菜室用吸込口４６）と、収納容器（主に下段収納容器６４）内にミストを噴霧するミスト噴霧手段６７とからなり、冷気吐出口（野菜室用吐出口４５）からの冷気を収納容器（下段収納容器６４、上段収納容器６５）内に導入し、収納容器（下段収納容器６４、上段収納容器６５）のミスト噴霧手段６７に近接する場所から収納容器（下段収納容器６４、上段収納容器６５）外へ流出させることとしたものであり、本来であれば、そのまま冷気吸込口（野菜室用吸込口４６）から冷却器３０へ運ばれてしまう収納容器（下段収納容器６４、上段収納容器６５）内の湿気をミスト噴霧手段６７により効率良く回収し、再度収納容器（下段収納容器６４、上段収納容器６５）内に返すことにより、収納容器（下段収納容器６４、上段収納容器６５）内を十分に加湿し、野菜の鮮度を保持することができる。 As described above, in the present embodiment, the refrigerator main body 1 having storage rooms such as the refrigerating room 21, the switching room 22, the ice making room 23, the vegetable room 24, the freezing room 25, and the storage room (vegetable room 24) A door 62 that closes the front opening, a plurality of storage containers (a lower storage container 64 and an upper storage container 65) that are provided in the storage room (vegetable room 24) and store food and are arranged one above the other. A cooler 30 for generating cool air for cooling the inside of the room (vegetable room 24, etc.), a cold air outlet (vegetable room outlet 45) for discharging cold air into the storage room (vegetable room 24), and a storage room (vegetable) A cool air suction port (vegetable chamber suction port 46) for returning the cool air cooled in the chamber 24) to the cooler 30, and a mist spraying means 67 for spraying mist into the storage container (mainly the lower storage container 64). The cold air from the cold air outlet (vegetable room outlet 45) The container (lower storage container 64, upper storage container 65) is introduced into the storage container (lower storage container 64, upper storage container 65) from a location close to the mist spraying means 67 of the storage container (lower storage container 64, upper storage container 65). Container 65) The storage container (lower storage container 64, upper storage) that would otherwise be transferred from the cold air intake (vegetable room intake 46) to the cooler 30 as it is. Humidity in the container 65) is efficiently recovered by the mist spraying means 67 and returned again into the storage container (lower storage container 64, upper storage container 65), whereby the storage container (lower storage container 64, upper storage container 65). The inside can be sufficiently humidified to maintain the freshness of the vegetables.
また、本実施の形態においては、ミスト噴霧手段６７近傍に収納容器（下段収納容器６４、上段収納容器６５）の冷気流出部を設けることとした（収納容器がミスト噴霧手段６７近傍に冷気流出部を有する）ものであり、収納容器（主に下段収納容器６４）内からの湿気によりミスト噴霧手段６７近傍を高湿化し、効率よく結露回収することができる。 In the present embodiment, the cold air outflow portion of the storage container (lower storage container 64, upper storage container 65) is provided in the vicinity of the mist spraying means 67 (the storage container has a cold air outflow section in the vicinity of the mist spraying means 67). In the vicinity of the mist spraying means 67 due to moisture from the inside of the storage container (mainly the lower storage container 64), the condensation can be collected and recovered efficiently.
また、本実施の形態においては、収納容器を上段収納容器６５と下段収納容器６４とから構成し、冷気流出部を上段収納容器６５と下段収納容器６４との間隙に設けた（間隙で構成した）ものであり、葉野菜等を収納することが多く水分の蒸散が多い下段収納容器６４からの湿気をミスト噴霧手段６７近傍に効率良く集中させ、ミスト噴霧手段６７により回収しやすくすることができる。 Further, in the present embodiment, the storage container is composed of the upper storage container 65 and the lower storage container 64, and the cool air outflow portion is provided in the gap between the upper storage container 65 and the lower storage container 64 (configured by the gap). The moisture from the lower storage container 64 that stores leafy vegetables and the like and has a large amount of moisture transpiration can be efficiently concentrated in the vicinity of the mist spraying means 67 and can be easily collected by the mist spraying means 67. .
また、本実施の形態においては、下段収納容器６４背面の上端に凹部６９を設けたものであり、シールされた厳密な区画を設ける必要がなく、簡単な構成で冷気流出部を構成することができる。これにより、下段収納容器６４内の湿気によりミスト噴霧手段６７近傍を高湿化することができ、湿気をミスト噴霧手段６７により回収しやすくすることができる。 Further, in the present embodiment, the recess 69 is provided at the upper end of the back surface of the lower storage container 64, and it is not necessary to provide a sealed strict compartment, and the cold air outflow portion can be configured with a simple configuration. it can. Thereby, the humidity in the mist spraying means 67 can be increased by the humidity in the lower storage container 64, and the moisture can be easily collected by the mist spraying means 67.
また、本実施の形態においては、ミスト噴霧手段６７に超音波方式を用いており、粒子径数μｍの微細なミストを発生させることができる。 In the present embodiment, an ultrasonic method is used for the mist spraying means 67, and fine mist having a particle diameter of several μm can be generated.
また、本実施の形態においては、ミスト噴霧手段６７に静電霧化方式を用いてもよく、粒子径数ｎｍから数μｍの微細なミストを発生させることができる。 In the present embodiment, an electrostatic atomization method may be used for the mist spraying means 67, and fine mist having a particle diameter of several nm to several μm can be generated.
以上のように、本発明にかかる冷蔵庫は、収納食品からの湿気を効率良く回収し再噴霧することにより収納容器内を十分に加湿することができ、収納食品の鮮度を維持することができるので、家庭用冷蔵庫のみならず、業務用冷蔵庫、食品保存庫、保冷車の用途にも適用できる。 As described above, the refrigerator according to the present invention can sufficiently humidify the inside of the storage container by efficiently collecting and re-spraying moisture from the stored food, and can maintain the freshness of the stored food. It can be applied not only to household refrigerators, but also to commercial refrigerators, food storage, and cold cars.
１ 冷蔵庫本体
２１ 冷蔵室（貯蔵室）
２２ 切替室（貯蔵室）
２３ 製氷室（貯蔵室）
２４ 野菜室（貯蔵室）
２４ａ 野菜室（貯蔵室）の上下方向の中心線
２４ｂ 野菜室（貯蔵室）の左右方向の中心線
２５ 冷凍室（貯蔵室）
３０ 冷却器
４５ 野菜室用吐出口（冷気吐出口）
４６ 野菜室用吸込口（冷気吸込口）
６２ 扉
６４ 下段収納容器（収納容器）
６５ 上段収納容器（収納容器）
６７ ミスト噴霧手段
６７ａ 霧化部
６９ 凹部（冷気流出部）
1 Refrigerator body 21 Refrigerated room (storage room)
22 Switching room (storage room)
23 Ice making room (storage room)
24 Vegetable room (storage room)
24a Vertical center line of vegetable room (storage room) 24b Horizontal center line of vegetable room (storage room) 25 Freezing room (storage room)
30 Cooler 45 Discharge port for vegetable room (cold air discharge port)
46 Suction port for vegetable room (cold air suction port)
62 Door 64 Lower storage container (storage container)
65 Upper storage container (storage container)
67 Mist spraying means 67a Atomization part 69 Concave part (cold air outflow part)
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007289496A JP4151736B1 (en) | 2007-04-26 | 2007-11-07 | refrigerator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007116944 | 2007-04-26 | ||
| JP2007289496A JP4151736B1 (en) | 2007-04-26 | 2007-11-07 | refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP4151736B1 true JP4151736B1 (en) | 2008-09-17 |
| JP2008292131A JP2008292131A (en) | 2008-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007289496A Expired - Fee Related JP4151736B1 (en) | 2007-04-26 | 2007-11-07 | refrigerator |
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| Country | Link |
|---|---|
| JP (1) | JP4151736B1 (en) |
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| JP2008292131A (en) | 2008-12-04 |
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