JPH0425471B2

JPH0425471B2 -

Info

Publication number: JPH0425471B2
Application number: JP17368084A
Authority: JP
Inventors: Taketoshi Mochizuki; Hisashi Ishigaki; Masaaki Hanada
Original assignee: Shin Meiva Industry Ltd
Current assignee: Shinmaywa Industries Ltd
Priority date: 1984-08-20
Filing date: 1984-08-20
Publication date: 1992-04-30
Also published as: JPS6152576A

Description

【発明の詳細な説明】（産業上の利用分野）この発明は、商品収容箱内の温度を高精度管理
し易くした冷凍冷蔵装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a freezing and refrigerating device that facilitates highly accurate control of the temperature within a product storage box.

（従来技術）従来、外箱（箱本体）内に複数個の内箱（商品
収容箱）を収納し、冷凍サイクルにより生成され
る冷気を前記外箱内で循環させることにより前記
内箱を冷却し、該内箱に収容した商品を低温管理
するようにした冷凍冷蔵装置はよく知られてい
る。(Prior art) Conventionally, a plurality of inner boxes (product storage boxes) are housed within an outer box (box body), and the inner boxes are cooled by circulating cold air generated by a refrigeration cycle within the outer box. However, freezing and refrigerating devices that control the low temperature of products stored in the inner box are well known.

しかしながら前述装置では、商品の出し入れを
実行するべく前記外箱の扉および前記内箱の扉を
開放すると、前記冷気が直接外部へ逃げてしま
い、エネルギのロスが大きいことはもちろん、商
品温度の高精度管理が難しい。 However, in the above-mentioned apparatus, when the outer box door and the inner box door are opened to take out and take out products, the cold air escapes directly to the outside, which not only causes a large loss of energy but also increases the product temperature. Accuracy control is difficult.

（解決しようとする課題）この発明は前述事情に鑑みてなされたものであ
り、前記外箱の扉および前記内箱の扉を開けても
前記循環される冷気が直接外部へ逃げないように
した装置を提供せんとするものである。(Problem to be Solved) This invention was made in view of the above-mentioned circumstances, and is designed to prevent the circulated cold air from escaping directly to the outside even when the door of the outer box and the door of the inner box are opened. The aim is to provide the equipment.

（課題を解決するための手段）この発明は、一方に外扉を開閉自在に設けると
ともに、内側には前記外扉と平行な内壁を設け
て、内部を密閉空間とした箱本体と、一方は開口部とし、この開口部を前記外扉に臨
ませるとともに、前記開口部を除く他の部分を前
記密閉空間に存在させるべく、前記内壁を貫通し
て取り付けた伝熱性能の高い材料からなる商品収
容箱と、この商品収容箱の前記開口部を開閉する断熱構
造の開閉扉（内扉）と、前記密閉空間に設けた蒸発器および送風機と、
を備えてなる、冷凍冷蔵装置である。(Means for Solving the Problems) The present invention includes a box body that has an outer door on one side that can be freely opened and closed, and an inner wall that is parallel to the outer door on the inside to make the inside a sealed space; A product made of a material with high heat transfer performance, which is attached by penetrating the inner wall so that the opening faces the outer door and the other part except the opening exists in the sealed space. a storage box; an opening/closing door (inner door) with an insulating structure that opens and closes the opening of the product storage box; an evaporator and a blower provided in the sealed space;
This is a freezing and refrigerating device that is equipped with:

（作用）冷凍ユニツトにより生成された冷気は前記送風
機により前記密閉空間を強制的に循環され、前記
商品収容箱の高い伝熱性能によりその内部に収容
した商品を所定温度に保つ。前記外扉および前記
商品収容箱の開閉扉を開放しても、前記密閉空間
を循環している冷気は外部へ逃げないので、エネ
ルギのロスが少ない。また前記外扉だけを開放す
る場合は、開閉扉（内扉）の断熱構造も相まつて
前記商品収容箱内の温度影響はほとんどない。(Function) Cold air generated by the refrigeration unit is forcibly circulated through the closed space by the blower, and the high heat transfer performance of the product storage box keeps the products stored therein at a predetermined temperature. Even if the outer door and the opening/closing door of the product storage box are opened, the cold air circulating in the closed space does not escape to the outside, so there is little energy loss. Further, when only the outer door is opened, the temperature inside the product storage box is hardly affected by the heat insulating structure of the opening/closing door (inner door).

（実施例）まず第１，２図の冷凍冷蔵装置について説明す
る。(Example) First, the freezing and refrigerating apparatus shown in FIGS. 1 and 2 will be explained.

１は、内部を密閉空間Ｓとした箱本体であり、
その下部にはキヤスタ２が設けられている。 1 is a box body with a closed space S inside;
A caster 2 is provided at the bottom thereof.

３は、前面は開口部３ａとし、開口部３ａを箱
本体１の外部（実施例では前壁１ａから外部）に
のぞませるとともに、開口部３ａを除く他の部分
を密閉空間Ｓに存在させた商品収容箱である。収
容箱３は、上下に間隔をおいて複数個（実施例で
は４個）設けられている。そして各収容箱３の前
面開口部３ａには、開閉扉４が垂直軸支４ａされ
ている。開閉扉４は断熱構造となつている。なお
収容箱３は、伝熱性能の高い材料（例えば銅、ア
ルミニウム）で形成されている。 3 has an opening 3a on the front side, and allows the opening 3a to look outside the box body 1 (in the embodiment, from the front wall 1a to the outside), and the other parts except the opening 3a exist in the closed space S. This is a product storage box. A plurality of storage boxes 3 (four in the embodiment) are provided vertically at intervals. In the front opening 3a of each storage box 3, an opening/closing door 4 is vertically supported 4a. The opening/closing door 4 has a heat insulating structure. Note that the storage box 3 is made of a material with high heat transfer performance (for example, copper or aluminum).

５は、箱本体１の前面に、しかも前壁１ａと間
隔をおいて開閉自在に軸支５ａした外扉である。 Reference numeral 5 designates an outer door 5a which is pivotally supported on the front surface of the box body 1 and spaced apart from the front wall 1a so as to be freely openable and closable.

Ｒは、箱本体１の上壁１ｄ上に載置された冷凍
ユニツトであり、周知の圧縮機、凝縮器、膨張弁
などを含む。６は、冷凍ユニツトＲの膨張弁の吐
出側に配管される蒸発器であつて、密閉空間Ｓ
に、かつ実施例では箱本体１の後壁１ｂに取り付
けられている。７は送風機（実施例ではクロスフ
ローフアン型）であり、蒸発器６の下方で、箱本
体１の後壁１ｂと底壁１ｃとの交差部において、
その軸方向を左右方向にして設けられている。そ
して送風機７の吸込口７ａはその前面側に、吐出
口７ｂは上面側に位置されている。 R is a refrigeration unit placed on the upper wall 1d of the box body 1, and includes a well-known compressor, condenser, expansion valve, etc. 6 is an evaporator piped to the discharge side of the expansion valve of the refrigeration unit R, and is connected to the closed space S.
In the embodiment, it is attached to the rear wall 1b of the box body 1. 7 is a blower (cross flow fan type in the embodiment), which is located below the evaporator 6 at the intersection of the rear wall 1b and the bottom wall 1c of the box body 1;
It is provided with its axial direction being the left and right direction. The suction port 7a of the blower 7 is located on the front side, and the discharge port 7b is located on the top side.

８は、乾燥剤を収納したケースであり、実施例
では箱本体１の側壁から密閉空間Ｓに挿入、取出
し可能である。 Reference numeral 8 denotes a case containing a desiccant, which can be inserted into and taken out from the side wall of the box body 1 into the sealed space S in the embodiment.

９は、箱本体１の両側壁と収容箱３の後端両側
壁との間に設けた仕切壁である。 Reference numeral 9 denotes a partition wall provided between both side walls of the box body 1 and both side walls of the rear end of the storage box 3.

そして冷凍ユニツトＲおよび送風機７を作動す
ると、密閉空間Ｓ内の空気は、蒸発器６により冷
却され、かつ第１図図示矢印のように強制的に対
流される。しかも収容箱３が伝熱性能の良好な材
料で形成されていること、および開閉扉４が断熱
構造であることと相まつて、収容箱３内部は効率
よく冷却され、かつ一定の温度に高精度に保ち得
る。 When the refrigeration unit R and the blower 7 are operated, the air in the closed space S is cooled by the evaporator 6 and forced to undergo convection as indicated by the arrows in FIG. In addition, the storage box 3 is made of a material with good heat transfer performance, and the opening/closing door 4 has a heat-insulating structure, so that the inside of the storage box 3 can be efficiently cooled and maintained at a constant temperature with high accuracy. can be maintained.

また密閉空間Ｓには乾燥剤ケース８が挿入され
ているため、空間Ｓ内は除湿されており、蒸発器
６や送風機７などへの着霜のうれいはない。 Furthermore, since the desiccant case 8 is inserted into the sealed space S, the inside of the space S is dehumidified, and there is no possibility of frost forming on the evaporator 6, blower 7, etc.

次に第３，４図の実施例につき、概略説明す
る。 Next, the embodiments shown in FIGS. 3 and 4 will be briefly explained.

商品収容箱１３は、上面に開口部１３ａが形成
され、その開口部１３ａを箱本体１１の上壁１１
ｄから外部にのぞませるとともに、その他の部分
が箱本体１１の密閉空間Ｓに存在されている。ま
た収容箱１３は、左右に間隔をおいて複数個（実
施例では３個）設けられ、各収容箱１３の開口部
１３ａには開閉扉１４が水平軸支１４ａされてい
る。また外扉１５は、箱本体１の上面に、しかも
上壁１１ｄと間隔をおいて開閉自在に軸支１５ａ
されている。 The product storage box 13 has an opening 13a formed on the top surface, and the opening 13a is connected to the top wall 11 of the box body 11.
d to the outside, and other parts are present in the closed space S of the box body 11. Further, a plurality of storage boxes 13 (three in the embodiment) are provided at left and right intervals, and an opening/closing door 14 is horizontally supported 14a in the opening 13a of each storage box 13. Further, the outer door 15 is provided with a pivot support 15a on the upper surface of the box body 1, and at a distance from the upper wall 11d so as to be freely openable and closable.
has been done.

また蒸発器１６は、底壁１１ｃに、かつ送風機
１７の吸込口１７ａに取り付けられている。 Further, the evaporator 16 is attached to the bottom wall 11c and to the suction port 17a of the blower 17.

さらに乾燥剤を収納したケース１８は、箱本体
１１の側壁から密閉空間Ｓに挿入、取出し可能で
ある。 Furthermore, the case 18 containing the desiccant can be inserted into and taken out from the side wall of the box body 11 into the sealed space S.

従つてこの実施例の場合、密閉空間Ｓ内の冷気
は第４図図示矢印のように強制的に対流され、前
述同様、収容箱１３内部は効率よく冷却され、か
つ一定の温度に高精度に保ち得る。 Therefore, in the case of this embodiment, the cold air in the closed space S is forcibly convected as shown by the arrow in FIG. Can be kept.

前述説明は実施例であり、例えば第１，２図の
冷凍冷蔵装置にあつては、蒸発器６を送風機７の
吸込口７ａ側に取り付けてもよい。また第３，４
図の冷凍冷蔵装置にあつては、蒸発器１６を送風
機１７の吐出口１７ｂ側に取り付けてもよい。そ
の他各構成の均等物との置換もこの発明の技術範
囲に含まれることはもちろんである。 The above description is an example, and for example, in the case of the freezing and refrigerating apparatus shown in FIGS. 1 and 2, the evaporator 6 may be attached to the suction port 7a side of the blower 7. Also 3rd and 4th
In the freezer/refrigerator shown in the figure, the evaporator 16 may be attached to the outlet 17b side of the blower 17. It goes without saying that the technical scope of the present invention also includes the replacement of each component with equivalents.

（発明の効果）この発明は前述したとおりであるから、外扉お
よび開閉扉（内扉）を開放しても密閉空間内の冷
気が直接外部へ逃げないので、エネルギのロスが
少ない。また外扉のみを開放する場合では、開閉
扉（内扉）の断熱構造も相まつて商品収容箱内の
温度にほとんど影響を及ぼさない。よつて商品の
温度管理を高精度に実行できる。(Effects of the Invention) Since the present invention is as described above, even if the outer door and the opening/closing door (inner door) are opened, the cold air in the closed space does not directly escape to the outside, so there is little energy loss. Furthermore, when only the outer door is opened, the heat insulating structure of the opening/closing door (inner door) also has little effect on the temperature inside the product storage box. Therefore, the temperature of the product can be controlled with high precision.

[Brief explanation of drawings]

第１，２図はこの発明の一実施例を示し、第１
図は縦断側面図、第２図は第１図の−断面矢
視図である。第３，４図はこの発明の別の実施例
を示し、第３図は縦断正面図、第４図は第３図の
−断面矢視図である。１，１１…箱本体、１ａ，１１ａ…前壁、１
ｂ，１１ｂ…後壁、１，１１ｃ…底壁、１ｄ，１
１ｄ…上壁、Ｓ…密閉空間、３，１３…商品収容
箱、３ａ，１３ａ…開口部、４，１４…開閉扉、
５，１５…外扉、６，１６…蒸発器、７，１７…
送風機、７ａ，１７ａ…吸込口、７ｂ，１７ｂ…
吐出口、８，１８…乾燥剤を収納したケース。 Figures 1 and 2 show an embodiment of the present invention.
The figure is a vertical side view, and FIG. 2 is a cross-sectional view taken along the arrow - in FIG. 1. 3 and 4 show another embodiment of the present invention, with FIG. 3 being a longitudinal sectional front view and FIG. 4 being a sectional view taken along the arrow - in FIG. 1, 11...Box body, 1a, 11a...Front wall, 1
b, 11b...rear wall, 1, 11c...bottom wall, 1d, 1
1d... Upper wall, S... Sealed space, 3, 13... Product storage box, 3a, 13a... Opening, 4, 14... Opening/closing door,
5,15...outer door, 6,16...evaporator, 7,17...
Blower, 7a, 17a... Suction port, 7b, 17b...
Discharge port, 8, 18...A case containing desiccant.

Claims

[Scope of Claims] 1. A box body having an outer door on one side that can be opened and closed and an inner wall parallel to the outer door on the inside to create a sealed space; a product storage box made of a material with high heat transfer performance and installed through the inner wall so that the outer door faces the outer door and the other part except the opening exists in the closed space; A freezing and refrigerating device comprising: an opening/closing door having an insulating structure that opens and closes the opening of the storage box; and an evaporator and a blower provided in the sealed space. 2. The freezing and refrigerating device according to claim 1, wherein a case containing a desiccant can be inserted into and taken out from the sealed space from the outside of the box body.