JPH058456Y2 - - Google Patents

Description

【考案の詳細な説明】 (イ) 産業上の利用分野 本考案は２台の蒸発器と、送風機と、前記蒸発
器から滴下する露を受ける露受皿とを備え、組立
式低温庫等に設けられる冷却装置の庫内側ユニツ
トに関する。[Detailed description of the invention] (a) Industrial application field The present invention is equipped with two evaporators, a blower, and a dew pan to catch the dew dripping from the evaporators, and is installed in a prefabricated low-temperature refrigerator, etc. This invention relates to an internal unit of a cooling system.

(ロ) 従来の技術 例えば実公昭55−23179号公報には、冷凍サイ
クルに直列に二個の蒸発器を設け、庫内を仕切壁
で二室に区画して各室に前記蒸発器を夫々配設し
てなる冷蔵庫に於いて、庫内背壁に前記両蒸発器
を対向して設けた支柱に取り付けた冷蔵庫が設置
されている。(b) Prior art For example, in Japanese Utility Model Publication No. 55-23179, two evaporators are installed in series in a refrigeration cycle, the interior of the refrigerator is divided into two rooms by a partition wall, and the evaporator is installed in each room. In the refrigerator, the two evaporators are mounted on pillars facing each other on the back wall of the refrigerator.

(ハ) 考案が解決しようとする問題点 上記従来の技術において、二個の蒸発器は冷凍
サイクルに直列に設けられているため、夫々の蒸
発器を個々に冷却運転させることはできなく、庫
内温度は負荷の変動のために変化し、又、二個の
蒸発器を組み立てた後夫々を対向する支柱に取り
付け、その後に庫内背壁に取り付けるため、２本
の支柱が必要で部品点数は増加すると共に、各蒸
発器の組み立て作業の他に支柱への取り付け作業
が必要で、組み立て及び取り付け作業は煩雑にな
るという問題点が発生していた。本考案は前記問
題点を解決することを目的とする。(c) Problems to be solved by the invention In the above-mentioned conventional technology, since the two evaporators are installed in series in the refrigeration cycle, it is not possible to operate each evaporator individually for cooling. The internal temperature changes due to load fluctuations, and after assembling the two evaporators, each is attached to an opposing column and then attached to the back wall of the refrigerator, so two columns are required and the number of parts is reduced. As the number of evaporators increases, a problem arises in that in addition to assembling each evaporator, it is necessary to attach the evaporator to the support, making the assembly and attachment operations complicated. The present invention aims to solve the above problems.

(ニ) 問題点を解決するための手段 本考案は、上下２段に管板を共通にして配設さ
れ、夫々独立した冷凍系統を構成する上段及び下
段蒸発器と、前記上段蒸発器と下段蒸発器の間に
配設され、加熱装置及び排水管を備えた上段露受
皿と、前記下段蒸発器の下方に配設され、加熱装
置及び排水管を備えた下段露受皿と、前記上段蒸
発器に対応して配設した上段送風機と、前記下段
蒸発器に対応して配設した下段送風機とを備えた
冷却装置の庫内側ユニツトにて、上記問題点を解
決するものである。(d) Means for solving the problem The present invention consists of upper and lower evaporators, which are arranged in two stages with a common tube plate and constitute independent refrigeration systems, and the upper and lower evaporators. an upper dew pan disposed between the evaporators and equipped with a heating device and a drain pipe; a lower dew pan disposed below the lower evaporator and equipped with a heating device and a drain pipe; and the upper evaporator. The above-mentioned problem is solved by an inside unit of a cooling device including an upper stage blower arranged corresponding to the lower stage evaporator and a lower stage blower arranged corresponding to the lower stage evaporator.

また、本考案は、上記構成において、前記上段
露受皿の排水管の排水口が、前記下段露受皿の上
方に開口すると共に、前記両露受皿は前記加熱装
置として常時高圧冷媒側である加熱用冷媒配管を
備えている冷却装置の庫内側ユニツトである。 Further, in the present invention, in the above structure, the drain port of the drain pipe of the upper dew pan opens above the lower dew pan, and the both dew pans are used as heating devices that are always on the high-pressure refrigerant side. This is an internal unit of a cooling system equipped with refrigerant piping.

(ホ) 作用 ２台の蒸発器は夫々独立した冷凍系統に設けら
れているため、一方の蒸発器の除霜運転に関係な
く、他方の蒸発器を冷却運転制御することがで
き、又、上段露受皿が仕切板として作用すること
になるため、上段蒸発器を通過する冷気と下段蒸
発器を通過する冷気の干渉を防止することができ
ると共に、上段及び下段蒸発器間の温度影響も防
止することができる。(E) Function Since the two evaporators are each installed in an independent refrigeration system, regardless of the defrosting operation of one evaporator, the cooling operation of the other evaporator can be controlled. Since the dew pan acts as a partition plate, it is possible to prevent interference between the cold air passing through the upper stage evaporator and the cold air passing through the lower stage evaporator, and also prevent temperature effects between the upper stage and lower stage evaporators. be able to.

(ヘ) 実施例 以下、本考案の一実施例を第１図乃至第８図に
基づいて詳細に説明する。(f) Embodiment Hereinafter, an embodiment of the present invention will be described in detail based on FIGS. 1 to 8.

第２図に示した１は組立式低温庫２の側壁３上
部に設けられた冷却装置で、この冷却装置１は低
温庫２の庫内に配設された庫内側ユニツト４と、
低温庫２の庫外に配設された庫外側ユニツト５と
から構成されている。又、６及び７は庫内側ユニ
ツト４に上下２段に配設されたプレートフイン型
の上段蒸発器及び下段蒸発器、８は上段蒸発器６
と下段蒸発器７の間に配設した例えばアルミ製の
上段露受皿、９は下段蒸発器７の下方に配設した
例えばアルミ製の下段露受皿、１０は庫内側ユニ
ツト４と庫外側ユニツト５との間に設けられた断
熱仕切板である。さらに１１は冷却装置１の運転
を制御するコントローラ、１２は凝縮器フアンガ
ード、１３は電装箱カバー、１４は凝縮器、１５
は機械室である。 Reference numeral 1 shown in FIG. 2 is a cooling device installed on the upper part of the side wall 3 of a prefabricated low-temperature refrigerator 2.
It consists of a refrigerator outside unit 5 disposed outside the low-temperature refrigerator 2. Further, 6 and 7 are plate fin type upper and lower evaporators arranged in two stages, upper and lower, in the inside unit 4, and 8 is an upper evaporator 6.
9 is a lower dew pan made of aluminum, for example, and is disposed below the lower evaporator 7; 10 is an inner unit 4 and an outer unit 5; This is an insulating partition plate installed between the Furthermore, 11 is a controller that controls the operation of the cooling device 1, 12 is a condenser fan guard, 13 is an electrical box cover, 14 is a condenser, 15
is the machine room.

ここで、第１図、第５図、及び第６図に基づい
て庫内側ユニツト５の内部構造について説明す
る。尚、各図面において同符号のものは同様なも
のとする。上段蒸発器６と下段蒸発器７とは間隔
１６を存して上下２段に配置され左右両管板１
７，１８に取り付けられ支持されている。そし
て、前記間隔１６には全幅が左右両管板１７，１
８間と略等しく奥行きが前記両管板１７，１８の
奥行きと略等しい上段露受皿８が前方すなわち冷
気吹出口６Ａ方向に傾斜して設けられ、この上段
露受皿８の下面には加熱手段として後述する第１
冷凍系統の一部である上段加熱冷媒配管２０が接
触固定され、側面前部の最低部には横方向へ延び
折曲して下方へ延びたアルミ管等の上段排水管２
１が溶接接続されている。尚、８Ａは上段露受皿
８前面に設けられた化粧板である。又、下段蒸発
器７の下方には左右両管板１７，１８の下部に取
り付けられた下段露受皿９が後方へ傾斜して設け
られ、この下段露受皿９の全幅は左右両管板１
７，１８間より広く、又奥行きは両管板１７，１
８の奥行きと略等しく、少なくとも上段排水管２
１の排水口２１Ａの下方に位置するように、右管
板１８より外側に延びた延在露受部９Ａが形成さ
れている。そして、下段露受皿９の下面には後述
する第２冷凍系統の一部である下段加熱冷媒配管
２２が接触固定され、下面後部の最低部に形成さ
れた排水口９Ｂにはアルミ管等の下段排水管２３
が接続され、下段加熱冷媒配管２２は下段排水管
２に沿つて延びている。尚、右管板１８の前部略
中央には上段排水管２１を逃げる切り欠き１８Ｂ
が形成されている。 Here, the internal structure of the inside unit 5 will be explained based on FIGS. 1, 5, and 6. In each drawing, the same reference numerals refer to the same elements. The upper stage evaporator 6 and the lower stage evaporator 7 are arranged in two stages, upper and lower, with an interval of 16, and both the left and right tube plates 1
7, 18 and is supported. The gap 16 has a total width of both left and right tube plates 17,1.
An upper dew pan 8 whose depth is approximately equal to the depth of the tube plates 17 and 18 is provided so as to be inclined forward, that is, in the direction of the cold air outlet 6A. The first
An upper heating refrigerant pipe 20, which is part of the refrigeration system, is fixed in contact with the upper heating refrigerant pipe 20, and an upper drainage pipe 2, such as an aluminum pipe, which extends laterally, is bent, and extends downward at the lowest part of the front side surface.
1 is welded and connected. Note that 8A is a decorative plate provided on the front surface of the upper dew pan 8. Further, below the lower evaporator 7, there is provided a lower dew pan 9 which is attached to the lower portions of both the left and right tube plates 17 and 18 and is tilted rearward.
It is wider than between 7 and 18, and the depth is between both tube plates 17 and 1.
8, and at least the upper drain pipe 2
An extended exposed portion 9A extending outward from the right tube plate 18 is formed so as to be located below the drain port 21A. A lower heating refrigerant pipe 22, which is a part of a second refrigeration system to be described later, is fixed in contact with the lower surface of the lower dew pan 9, and a drain port 9B formed at the lowest part of the rear part of the lower surface is connected to a lower stage such as an aluminum pipe. Drain pipe 23
is connected, and the lower heating refrigerant pipe 22 extends along the lower drain pipe 2. In addition, approximately in the center of the front part of the right tube plate 18, there is a notch 18B for escaping the upper drain pipe 21.
is formed.

前記左右両管板１７，１８の上端には外側へ折
曲してフランジ１７Ａ，１８Ａが形成され、これ
らフランジ１７Ａ，１８Ａに上下両段蒸発器６，
７の上方を覆うエバケース天板２５が取り付けら
れている。又、２６，２７は断熱仕切板１０の左
右上部に取り付けられた蒸発器支持架台で、夫々
の支持架台２６，２７の上面フランジ２６Ａ，２
７Ａ前部に左右両管板フランジ１７Ａ，１８Ａは
載せられ、支持されている。さらに３０は上下両
段蒸発器６，７の後方を覆うフアンケーシング
で、このフアンケーシング３０には上下両段蒸発
器６，７に対応して送風機用開口３１，３２が形
成され、これら送風機用開口３１，３２には夫々
上段送風機３３のフアン３３Ｆ及び下段送風機３
４のフアン３４Ｆが配設されている。尚、３３
Ｍ，３４Ｍは前記送風機用のモータである。又、
上段露受皿８により庫内側ユニツト４内は上段冷
気通路３５と下段冷気通路３６とに分割される。 At the upper ends of both the left and right tube plates 17, 18, flanges 17A, 18A are formed by bending outward, and upper and lower evaporators 6,
An Evercase top plate 25 is attached to cover the top of 7. Further, reference numerals 26 and 27 are evaporator support frames attached to the upper left and right sides of the heat insulating partition plate 10, and upper flanges 26A and 2 of the support frames 26 and 27, respectively.
Both the left and right tube plate flanges 17A and 18A are mounted and supported on the front part of the tube plate 7A. Furthermore, 30 is a fan casing that covers the rear of the upper and lower evaporators 6 and 7, and this fan casing 30 is formed with openings 31 and 32 for blowers corresponding to the upper and lower evaporators 6 and 7. A fan 33F of the upper blower 33 and a fan 33F of the lower blower 3 are installed in the openings 31 and 32, respectively.
Four fans 34F are arranged. In addition, 33
M and 34M are motors for the blower. or,
The inside of the refrigerator inner unit 4 is divided into an upper cold air passage 35 and a lower cold air passage 36 by the upper dew pan 8.

又、第７図に示したように庫外側ユニツト５内
は仕切板４０にて熱交換室４１と機械室４２とに
分けられ、前記熱交換室４１には上段側凝縮器と
下段側凝縮器とを一体化した凝縮器１４が設けら
れ、上面には凝縮器用送風機４３，４３が設けら
れている。又、機械室には第１及び第２冷凍系統
を構成する上段側圧縮機４４と下段側圧縮機４５
とが設けられている。 Further, as shown in FIG. 7, the inside of the outside unit 5 is divided by a partition plate 40 into a heat exchange chamber 41 and a machine room 42, and the heat exchange chamber 41 has an upper condenser and a lower condenser. A condenser 14 is provided, and condenser blowers 43, 43 are provided on the upper surface. The machine room also has an upper compressor 44 and a lower compressor 45 that constitute the first and second refrigeration systems.
and is provided.

第８図は第１、第２冷凍系統５０，５１の配管
系統図で、第１冷凍系統５０は、上段側圧縮機４
４、四方弁５２、凝縮器１４、第１逆止弁５３、
常時高圧冷媒側である上段加熱冷媒配管２０、キ
ヤピラリ５４、上段蒸発器６、四方弁５２、及び
アキユムレータ５５等を環状に配管接続すると共
に、キヤピラリチユーブ５６及び第２逆止弁５７
を接続して構成される。又、第２冷凍系統５１は
下段側圧縮機４５、四方弁６０、凝縮器１４、第
１逆止弁６１、常時高圧冷媒側である下段加熱冷
媒配管２２、キヤピラリ６２、下段蒸発器７、四
方弁６０、及びアキユムレータ６３等を環状に配
管接続すると共に、キヤピラリチユーブ６４及び
第２逆止弁６５を接続して構成される。そして、
第１、第２冷凍系統５０，５１において冷却運転
の際には冷媒は実線矢印にて示したように循環
し、蒸発器の除霜運転の際には冷媒は鎖線矢印に
て示したように循環し、第１冷凍系統５０の冷却
運転の際には上段加熱冷媒配管２０には上段圧縮
機４４から吐出され凝縮器１４及び第１逆止弁５
３を通つた例えば40℃〜45℃の高温高圧液冷媒が
流れ、上段露受皿８を加熱すると共に、除霜運転
の際にも上段加熱冷媒配管２０には上段圧縮機４
４から吐出され、上段蒸発器６及び第２逆止弁５
７を通つた例えば５℃〜10℃位の高温高圧液冷媒
が流れる。又、同様に第２冷凍系統５１において
も冷却運転、除霜運転にかかわらず下段加熱冷媒
配管２２には高温高圧液冷媒が流れ、下段露受皿
９は加熱される。尚、第８図は第１冷凍系統５０
を冷却運転、第２冷凍系統５１を除霜運転してい
るときの状態を示している。そして、庫内温度の
変化に応じて第１、第２両冷凍系統５０，５１を
同時冷却運転、一方運転停止、他方冷却運転、又
は同時運転停止させる。 FIG. 8 is a piping system diagram of the first and second refrigeration systems 50 and 51.
4, four-way valve 52, condenser 14, first check valve 53,
The upper heating refrigerant piping 20, capillary 54, upper evaporator 6, four-way valve 52, accumulator 55, etc., which are always on the high-pressure refrigerant side, are connected in an annular manner, and a capillary tube 56 and a second check valve 57 are connected.
It is configured by connecting. The second refrigeration system 51 includes a lower compressor 45, a four-way valve 60, a condenser 14, a first check valve 61, a lower heating refrigerant pipe 22 that is always on the high-pressure refrigerant side, a capillary 62, a lower evaporator 7, and a four-way valve. The valve 60, the accumulator 63, etc. are connected to each other in an annular manner, and a capillary tube 64 and a second check valve 65 are connected to each other. and,
In the first and second refrigeration systems 50 and 51, during cooling operation, the refrigerant circulates as shown by the solid arrow, and during evaporator defrosting operation, the refrigerant circulates as shown by the chain arrow. During the cooling operation of the first refrigeration system 50, the refrigerant is discharged from the upper compressor 44 to the upper heated refrigerant pipe 20, and the condenser 14 and the first check valve 5
A high temperature, high pressure liquid refrigerant of, for example, 40°C to 45°C flows through the upper heating refrigerant pipe 20 and heats the upper dew pan 8 during defrosting operation.
4, the upper stage evaporator 6 and the second check valve 5
A high-temperature, high-pressure liquid refrigerant of, for example, about 5° C. to 10° C. flows through 7. Similarly, in the second refrigeration system 51, high-temperature, high-pressure liquid refrigerant flows through the lower heating refrigerant pipe 22 regardless of the cooling operation or the defrosting operation, and the lower dew pan 9 is heated. In addition, FIG. 8 shows the first refrigeration system 50.
The figure shows the state when the second refrigeration system 51 is in a cooling operation and the second refrigeration system 51 is in a defrosting operation. Then, both the first and second refrigeration systems 50 and 51 are brought into simultaneous cooling operation, one is stopped, the other is put into cooling operation, or simultaneously stopped depending on the change in the temperature inside the refrigerator.

従つて、上段蒸発器６及び下段蒸発器７は夫々
独立した第１冷凍系統５０及び第２冷凍系統５１
に設けられ、個々に運転制御することができ、低
温貯蔵１の扉の開閉等に伴う負荷の変動に対応し
て、上段蒸発器６及び下段蒸発器７を個々に冷却
運転させ庫内温度を略一定に保つことができるの
は勿論、一方の蒸発器の除霜運転を行つていると
きに、他方の蒸発器の冷凍系統にて冷却運転を行
うことができ、除霜運転の際も庫内温度を設定温
度に保つことができる。又、上段蒸発器６と下段
蒸発器７とは夫々共通して左右両管板１７，１８
に支持されているため、夫々の蒸発器を支持する
ための他の部材は不必要で、部品点数を増加させ
ることなく上下両段蒸発器６，７を支持すること
ができ、又、夫々の蒸発器６，７の組み立ての際
に左右両管板１７，１８により夫々の蒸発器１
６，１７を上下２段に配置支持させることがで
き、冷却装置の組み立て作業の簡略化を図ること
ができる。 Therefore, the upper stage evaporator 6 and the lower stage evaporator 7 are independent first refrigeration system 50 and second refrigeration system 51, respectively.
The upper evaporator 6 and the lower evaporator 7 are individually operated for cooling in response to changes in load due to opening and closing of the door of the low temperature storage 1, etc. to control the internal temperature. Not only can it be kept almost constant, but when one evaporator is defrosting, the other evaporator's refrigeration system can be used to cool the refrigerator. The internal temperature can be maintained at the set temperature. Further, the upper stage evaporator 6 and the lower stage evaporator 7 have left and right tube plates 17 and 18 in common, respectively.
Since the evaporators are supported by the evaporators 6 and 7, there is no need for other members to support each evaporator, and both the upper and lower evaporators 6 and 7 can be supported without increasing the number of parts. When assembling the evaporators 6 and 7, the left and right tube plates 17 and 18
6 and 17 can be arranged and supported in two stages, upper and lower, and the assembly work of the cooling device can be simplified.

さらに、上段蒸発器６の下方に設けられた上段
露受皿８にて上段蒸発器６から滴下した露を受け
ることができるのは勿論、この上段露受皿８にて
庫内側ユニツト４内を、上下両段の蒸発器６，７
に対応した上段冷気通路３５と下段冷気通路３６
とに分割でき、上段露受皿８を仕切板として作用
させることができる。 Furthermore, the upper dew pan 8 provided below the upper evaporator 6 can of course receive the dew dripping from the upper evaporator 6, and the upper dew pan 8 can also be used to control the interior of the inside unit 4, both top and bottom. Both stage evaporators 6, 7
Upper cold air passage 35 and lower cold air passage 36 corresponding to
The upper dew pan 8 can be used as a partition plate.

又、冷却運転及び除霜運転にかかわらず上下両
段加熱冷媒配管２０，２２には高温高圧液冷媒が
流れ、上下両段露受皿８，９は加熱されるため、
排水の凍結を防止でき、さらに上段露受皿８に接
続された上段排水管２１は下段露受皿９の延在露
受部９Ａの上方に開口しているため、その長さは
短くて良く、上段露受皿８の露を下段露受皿９及
び下段排水管２３を介して処理でき、上段露受皿
８の排水処理をスムーズに行うことができる。 In addition, regardless of the cooling operation or the defrosting operation, high temperature and high pressure liquid refrigerant flows through the heating refrigerant pipes 20 and 22 in both the upper and lower stages, and the dew pans 8 and 9 in both the upper and lower stages are heated.
Freezing of the drainage water can be prevented, and since the upper drain pipe 21 connected to the upper dew pan 8 opens above the extended dew pan 9A of the lower dew pan 9, its length can be short, and The dew in the dew pan 8 can be disposed of through the lower dew pan 9 and the lower drain pipe 23, and the upper dew pan 8 can be drained smoothly.

(ト) 考案の効果 本考案は上記のように構成された冷却装置の庫
内側ユニツトであるから、上段蒸発器及び下段蒸
発器は夫々独立した冷凍系統に設けられているた
め、個々に運転制御することができ、一方の蒸発
器の除霜運転のとき他方の蒸発器を冷却運転さ
せ、除霜運転の際も庫内温度を略一定に保つこと
ができ、又、夫々独立した上段蒸発器と下段蒸発
器とは管板を共通にして上下２段に取り付け支持
されているため蒸発器支持用の他の部材は必要な
く、部品点数を増加させることなく前記管板を共
通に利用して上下両段の蒸発器を支持することが
でき、さらに、上段蒸発器と下段蒸発器との間隙
に設けられた上段露受皿を仕切板として作用さ
せ、前記上段露受皿にて庫内側ユニツト内を上段
冷気通路と下段冷気通路とに分割し、夫々の冷気
通路を通過する冷気の干渉又は、一方の蒸発器の
除霜運転の際の他方の蒸発器への影響をなくすこ
とができる。(g) Effects of the invention Since the invention is an internal unit of the cooling system configured as described above, the upper stage evaporator and the lower stage evaporator are each provided in an independent refrigeration system, so their operation cannot be controlled individually. When one evaporator is in defrosting operation, the other evaporator is in cooling operation, and the temperature inside the refrigerator can be kept approximately constant even during defrosting operation. The lower stage evaporator and the lower stage evaporator are mounted and supported in two stages, upper and lower, using a common tube plate, so there is no need for other members to support the evaporator, and the tube plate can be used in common without increasing the number of parts. It is possible to support both the upper and lower evaporators, and furthermore, the upper dew pan provided in the gap between the upper and lower evaporators acts as a partition plate, and the upper dew pan is used to control the inside of the refrigerator unit. By dividing the evaporator into an upper cold air passage and a lower cold air passage, it is possible to eliminate interference of the cold air passing through the respective cold air passages or the influence on the other evaporator during defrosting operation of one evaporator.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第８図は本考案の一実施例を示し、
第１図は庫内側ユニツトの内部概略斜視図、第２
図は冷却装置を備えた組立式低温庫の縦断面図、
第３図及び第４図は冷却装置の外観斜視図、第５
図は第１図に示した庫内側ユニツトのＡ−A′線
縦断面図、第６図は庫内側ユニツトの分解斜視
図、第７図は庫外側ユニツトの一部切欠き斜視
図、第８図は第１、第２冷凍系統の配管系統図で
ある。 １……冷却装置、４……庫内側ユニツト、５…
…庫外側ユニツト、６……上段蒸発器、７……下
段蒸発器、８……上段露受皿、９……下段露受
皿、２０……上段加熱冷媒配管、２１……上段排
水管、２２……下段加熱冷媒配管、２３……下段
排水管、３３……上段送風機、３４……下段送風
機。 1 to 8 show an embodiment of the present invention,
Figure 1 is a schematic internal perspective view of the inside unit;
The figure is a vertical cross-sectional view of an assembled low-temperature refrigerator equipped with a cooling device.
Figures 3 and 4 are external perspective views of the cooling device;
The figures are a longitudinal cross-sectional view taken along the line A-A' of the inside unit shown in FIG. 1, FIG. 6 is an exploded perspective view of the inside unit, FIG. 7 is a partially cutaway perspective view of the outside unit, and FIG. The figure is a piping system diagram of the first and second refrigeration systems. 1... Cooling device, 4... Inside unit, 5...
...Outer storage unit, 6...Upper evaporator, 7...Lower evaporator, 8...Upper dew pan, 9...Lower dew pan, 20...Upper heating refrigerant piping, 21...Upper drain pipe, 22... ...Lower heating refrigerant pipe, 23...Lower drain pipe, 33...Upper blower, 34...Lower blower.

Claims (1)

【実用新案登録請求の範囲】 １ 上下２段に管板を共通にして配設され、夫々
独立した冷凍系統を構成する上段及び下段蒸発
器と、前記上段蒸発器と下段蒸発器の間に配設
され、加熱装置及び排水管を備えた上段露受皿
と、前記下段蒸発器の下方に配設され、加熱装
置及び排水管を備えた下段露受皿と、前記上段
蒸発器に対応して配設した上段送風機と、前記
下段蒸発器に対応して配設した下段送風機とを
備えたことを特徴とする冷却装置の庫内側ユニ
ツト。 ２ 前記上段露受皿の排水管の排水口は、前記下
段露受皿の上方に開口すると共に、前記両露受
皿は前記加熱装置として常時高圧冷媒側である
加熱用冷媒配管を備えたことを特徴とする実用
新案登録請求の範囲第１項記載の冷却装置の庫
内側ユニツト。[Scope of Claim for Utility Model Registration] 1. Upper and lower evaporators that are arranged in two stages with a common tube plate and constitute independent refrigeration systems, and that are arranged between the upper and lower evaporators. an upper dew pan provided below the lower evaporator and equipped with a heating device and a drain pipe; a lower dew pan provided below the lower evaporator and provided with a heating device and a drain pipe; What is claimed is: 1. An inside unit of a cooling device, comprising: an upper stage blower having a lower stage; and a lower stage blower disposed corresponding to the lower stage evaporator. 2. The drain port of the drain pipe of the upper dew pan opens above the lower dew pan, and the both dew pans are equipped with a heating refrigerant pipe that is always on the high-pressure refrigerant side as the heating device. A refrigerator side unit of a cooling device according to claim 1 of the utility model registration claim.