JP4653749B2 - Cooling storage - Google Patents

Cooling storage Download PDF

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Publication number
JP4653749B2
JP4653749B2 JP2006531416A JP2006531416A JP4653749B2 JP 4653749 B2 JP4653749 B2 JP 4653749B2 JP 2006531416 A JP2006531416 A JP 2006531416A JP 2006531416 A JP2006531416 A JP 2006531416A JP 4653749 B2 JP4653749 B2 JP 4653749B2
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Prior art keywords
cooler
wall
heating plate
fan device
fan
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JPWO2006013762A1 (en
Inventor
雅秀 矢取
義康 鈴木
秀行 田代
正樹 春日井
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Hoshizaki Electric Co Ltd
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Hoshizaki Electric Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0655—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the top
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0665—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the top
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/22—Cleaning means for refrigerating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/40—Refrigerating devices characterised by electrical wiring

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)
  • Defrosting Systems (AREA)

Description

本発明は冷却貯蔵庫に関し、特に冷却用のファン装置の除霜に適した構造の改良に関する。   The present invention relates to a cooling storage, and more particularly to improvement of a structure suitable for defrosting a cooling fan device.

従来、例えば業務用冷却貯蔵庫の一例として、特開２００３−２１４７５５公報に記載されたものが知られている。このものは、貯蔵庫本体の天井部に、ドレンパンを兼ねたダクトが張られることで冷却器室が画成され、この冷却器室内に、庫外の冷凍装置と接続された冷却器が収容されるとともに、ダクトの手前側に冷却ファン装置が装備された吸込口が、奥側に吹出口が設けられている。一方、冷却器には除霜用のヒータが取り付けられている。   2. Description of the Related Art Conventionally, for example, one described in JP-A-2003-214755 is known as an example of a commercial cooling storage. In this case, a cooler room is defined by a duct that also serves as a drain pan being stretched on the ceiling of the storage body, and a cooler connected to a refrigeration apparatus outside the warehouse is accommodated in the cooler room. In addition, a suction port equipped with a cooling fan device is provided on the front side of the duct, and a blower outlet is provided on the back side. On the other hand, a heater for defrosting is attached to the cooler.

冷却運転は、冷凍装置と冷却ファン装置とを駆動することで行われ、庫内空気が吸込口から吸い込まれて冷却器室を流通する間に冷却器と熱交換することで冷気が生成され、この冷気が吹出口から庫内に吹き出されるように循環供給されることで庫内が冷却される。一方、冷却器の除霜運転は、冷凍装置と冷却ファン装置とを停止した上でヒータに通電して発熱させることで行われ、冷却器が加熱されて付着した霜が溶融され、除霜水はダクト（ドレンパン）で受けられたのち、庫外へと排水される。   The cooling operation is performed by driving the refrigeration apparatus and the cooling fan apparatus, and cold air is generated by exchanging heat with the cooler while the air in the warehouse is sucked from the suction port and flows through the cooler chamber, The inside of the warehouse is cooled by being circulated and supplied so that the cold air is blown out from the outlet. On the other hand, the defrosting operation of the cooler is performed by stopping the refrigeration device and the cooling fan device and supplying heat to the heater to generate heat. After being received by a duct (drain pan), it is drained to the outside.

上記のような冷却貯蔵庫において、着霜するのは主に冷却器であるが、冷却ファン装置についても例えばケースやファンガードは庫内温度と同程度まで冷却されるし、扉を開けたときに侵入した外気が触れやすい位置にあることから、冷凍庫のように庫内温度が低かったり、外気が高温多湿である等の条件によっては、ケースやファンガード等にも着霜する可能性があった。しかるに従来の除霜対策としては、ヒータからの放射熱を冷却ファン装置に当てる程度であって、十分に除霜できるとは言えなかった。   In the cooling storage as described above, it is mainly the cooler that frosts, but for the cooling fan device, for example, the case and fan guard are cooled to the same level as the inside temperature, and when the door is opened Because it is in a position where intruded outside air is easy to touch, depending on conditions such as the freezer temperature being low or the outside air being hot and humid, there was a possibility of frosting on the case, fan guard, etc. . However, as a conventional defrosting countermeasure, it is only enough to apply the radiant heat from the heater to the cooling fan device, and it cannot be said that it can sufficiently defrost.

本発明は上記のような事情に基づいて完成されたものであって、その目的は、冷却ファン装置の除霜を有効に行えるようにするところにある。   The present invention has been completed based on the above circumstances, and an object thereof is to enable effective defrosting of a cooling fan device.

上記の目的を達成するための手段として、本発明は、加熱装置を装着してなる加熱板が冷却器に取り付けられ、その加熱板から延出されたファン装着部に冷却ファン装置が装着されているところに特徴を有する。 As a means for achieving the above object, the present invention is such that a heating plate mounted with a heating device is mounted on a cooler, and a cooling fan device is mounted on a fan mounting portion extending from the heating plate. It has a characteristic where it exists .

図１は、本発明の実施形態１に係る冷却貯蔵庫の縦断面図1 is a longitudinal sectional view of a cooling storage according to Embodiment 1 of the present invention. 図２は、冷却器室付近の断面図2 is a cross-sectional view of the vicinity of the cooler chamber 図３は、冷却器付近の分解断面図Fig. 3 is an exploded sectional view of the vicinity of the cooler 図４は、冷却器付近の分解斜視図4 is an exploded perspective view of the vicinity of the cooler. 図５は、実施形態２に係る冷却器室付近の断面図FIG. 5 is a sectional view of the vicinity of the cooler chamber according to the second embodiment. 図６は、実施形態２の加熱板の斜視図FIG. 6 is a perspective view of the heating plate of the second embodiment. 図７は、実施形態３に係る冷却器室付近の断面図FIG. 7 is a cross-sectional view of the vicinity of the cooler chamber according to the third embodiment. 図８は、実施形態３に係る加熱板と冷却ダクトの斜視図FIG. 8 is a perspective view of a heating plate and a cooling duct according to the third embodiment. 図９は、実施形態４に係る冷却器室付近の断面図FIG. 9 is a sectional view of the vicinity of the cooler chamber according to the fourth embodiment. 図１０は、実施形態４に係る冷却ダクトの排水口付近の分解斜視図FIG. 10 is an exploded perspective view of the vicinity of the drain of the cooling duct according to the fourth embodiment. 図１１は、実施形態４に係る熱伝導部材の側面図FIG. 11 is a side view of a heat conducting member according to the fourth embodiment. 図１２は、実施形態４に係る熱伝導部材のパイプ部の排水口への取付動作を示す断面図FIG. 12 is a cross-sectional view showing the operation of attaching the heat conducting member according to the fourth embodiment to the drain of the pipe portion. 図１３は、実施形態４に係る冷却ダクトの吸込口側の取付構造を示す斜視図及び部分拡大断面図FIG. 13 is a perspective view and a partial enlarged cross-sectional view showing the mounting structure on the suction port side of the cooling duct according to the fourth embodiment. 図１４は、実施形態５に係る冷却器室付近の断面図FIG. 14 is a cross-sectional view of the vicinity of the cooler chamber according to the fifth embodiment. 図１５は、実施形態５に係る加熱板付近の分解斜視図FIG. 15 is an exploded perspective view of the vicinity of the heating plate according to the fifth embodiment. 図１６は、参考例１に係る冷却器室付近の断面図FIG. 16 is a cross-sectional view of the vicinity of the cooler chamber according to Reference Example 1 . 図１７は、参考例２に係る冷却器室付近の断面図FIG. 17 is a cross-sectional view of the vicinity of the cooler chamber according to Reference Example 2 .

＜実施形態１＞
本発明の実施形態１を図１ないし図４によって説明する。
図１において、符号１０は、前面の開口された断熱箱体からなる貯蔵庫本体であって、４本の脚１１で支持されているとともに、内部が貯蔵室１２となっている。貯蔵室１２の前面には仕切枠１３で仕切られることにより、上下２つの出入口１４が形成され、各出入口１４には断熱扉１５が揺動開閉可能に装着されている。<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
In FIG. 1, the code | symbol 10 is the storage main body which consists of a heat insulation box body by which the front surface was opened, and while being supported by the four legs 11, the inside becomes the storage chamber 12. FIG. By partitioning the front of the storage chamber 12 with a partition frame 13, two upper and lower entrances 14 are formed, and a heat insulating door 15 is swingably attached to each entrance 14.

貯蔵庫本体１０の上面には、回りにパネル１７が立てられることで機械室１６が構成されている。この機械室１６の底面となる貯蔵庫本体１０の天井壁には、方形の開口部１８が形成されており、この開口部１８の上面を塞ぐようにして、冷凍ユニット２０のユニット台２１が載置されている。一方、開口部１８の前方側（図１の右側）における下面の口縁の位置から、奥壁に向かって、ドレンパンを兼ねた壁４０が下り勾配で張設されており、ユニット台２１との間に冷却器室２３が形成されている。   On the upper surface of the storage body 10, a machine room 16 is configured by standing a panel 17 around. A rectangular opening 18 is formed in the ceiling wall of the storage body 10 which is the bottom surface of the machine room 16, and the unit base 21 of the refrigeration unit 20 is placed so as to close the upper surface of the opening 18. Has been. On the other hand, from the position of the lip on the lower surface on the front side of the opening 18 (the right side in FIG. 1), a wall 40 that also serves as a drain pan is stretched downwardly from the position of the lip to the back wall. A cooler chamber 23 is formed therebetween.

ユニット台２１は断熱性であって、図２に詳細に示すように、その上面には、圧縮機２６、空冷式の凝縮器２７等からなる冷凍装置２５が載置されている一方、その下面の奥側には、冷却器２８（蒸発器）が後下がりの斜め姿勢で取り付けられてユニット化されている。冷却器２８と冷凍装置２５とは、ユニット台２１に設けられた挿通孔２９Ｘに通された冷媒配管３０によって循環接続され、周知の冷凍サイクルが構成されている。   As shown in detail in FIG. 2, the unit table 21 is heat-insulating, and a refrigeration device 25 including a compressor 26, an air-cooled condenser 27, and the like is placed on the upper surface thereof, while the lower surface thereof. A cooler 28 (evaporator) is attached to the rear side of the rear side in an oblique posture so as to be unitized. The cooler 28 and the refrigeration apparatus 25 are circulated and connected by a refrigerant pipe 30 that is passed through an insertion hole 29X provided in the unit base 21 to constitute a known refrigeration cycle.

冷却器室２３の構造をさらに説明する。壁４０は、ＡＢＳ樹脂等の合成樹脂製であって、図３及び図４に示すように、平面方形の皿状に形成され、ただし手前側（図３の右側）から奥側に向けて次第に深さが大きくされている。前壁４１Ｘは、左右両端部を残し、かつ下部の所定高さを残してその上部側が切除されており、この切除部分によって吸込口４２が形成されるようになっている。奥壁４１Ｙは、下部の所定高さを除いて上部側が切除されており、この切除部分によって吹出口４３が形成されるようになっている。   The structure of the cooler chamber 23 will be further described. The wall 40 is made of a synthetic resin such as ABS resin, and is formed in a flat rectangular dish shape as shown in FIGS. 3 and 4, but gradually from the near side (right side in FIG. 3) toward the far side. The depth has been increased. The front wall 41 </ b> X has its left and right ends left and its upper portion is cut away with a predetermined height at the lower portion, and the suction port 42 is formed by this cut portion. The upper side of the rear wall 41Y is cut out except for a predetermined height at the lower part, and the blowout port 43 is formed by this cut-out portion.

壁４０の内底面における左右の両側縁に寄った位置には、左右の側壁４１Ｚとの間に所定間隔を開けて取付板４４が立ち上がって形成され、それぞれの上縁にフック４５が形成されている。また、前壁４１Ｘ側には、吸込口４２の左右両側において一対の取付板４６が水平姿勢で形成されている。   A mounting plate 44 is formed at a position spaced from the left and right side walls 41Z at a position close to the left and right side edges on the inner bottom surface of the wall 40, and a hook 45 is formed on each upper edge. Yes. Further, on the front wall 41X side, a pair of mounting plates 46 are formed in a horizontal posture on both the left and right sides of the suction port 42.

壁４０は、縦向きの両取付板４４のフック４５を、上記した開口部１８の左右の側面側に設けられた掛止部３２（図２参照）に掛止し、また、前側の両取付板４６を開口部１８における下面側の前縁に当ててねじ４７で止めることにより、図２に示すように、その開口部１８の下面側を塞ぐようにして取り付けられる。壁４０の底面は、奥縁（同図の左側）に向けて下り勾配となった姿勢を取り、冷却器２８は、壁４０の底面から若干浮いた姿勢で収容される。壁４０の前面側に吸込口４２が、奥面側に吹出口４３が形成される。   The wall 40 hooks the hooks 45 of the both vertical mounting plates 44 to the hooking portions 32 (see FIG. 2) provided on the left and right side surfaces of the opening 18, and both front mountings. As shown in FIG. 2, the plate 46 is attached so as to close the lower surface side of the opening 18 by applying the plate 46 to the front edge on the lower surface side of the opening 18 and fastening with the screw 47. The bottom surface of the wall 40 has a downward slope toward the inner edge (the left side in the figure), and the cooler 28 is accommodated in a slightly floating posture from the bottom surface of the wall 40. A suction port 42 is formed on the front side of the wall 40, and an outlet 43 is formed on the back side.

壁４０は、上記したように除霜水を受けるドレンパンを兼ねていて、奥側が最深部となっており、残された奥壁４１Ｙにおける幅方向の中央よりも正面から見て少し左側に寄った位置に、排水口４８が形成されている。この排水口４８は上面開口の溝状をなし、奥側に向けて先下がりの姿勢で形成されている。この排水口４８は、貯蔵庫本体１０の背面壁に形成された排水路３３の上端部に嵌入されて接続されている。なお排水路３３は、途中から側壁側に回り、底面の手前側に開口されている。   As described above, the wall 40 also serves as a drain pan that receives defrosted water, and the back side is the deepest part, and the left side is slightly closer to the left than the center in the width direction of the remaining back wall 41Y. A drain port 48 is formed at the position. The drainage port 48 has a groove shape with an opening on the top surface, and is formed so as to be lowered toward the back side. The drain port 48 is fitted and connected to the upper end portion of the drainage channel 33 formed on the back wall of the storage body 10. In addition, the drainage channel 33 turns to the side wall side from the middle, and is opened in the near side of the bottom face.

冷却器２８の下面側には、除霜用のヒータ５０が装着されるようになっている。それに伴って熱伝導部材に相当する加熱板５１が備えられている。この加熱板５１は、ステンレス鋼板製であって、図４に示すように、冷却器２８の下面の全面を覆うことができる大きさの本体部５２を有している。本体部５２の上面には、コード形式のヒータ５０が、ジグザグ状に配線されるようになっている。本体部５２の前縁と奥縁とには、複数ずつの長孔からなる水切り孔５３が並んで開口されている。また本体部５２の前縁の左右両端部には、ねじ４７の挿通孔５４Ｘが形成されているとともに、本体部５２の奥縁からは取付板５５が立ち上げられ、この取付板５５の左右両端部に、同様にねじ４７の挿通孔５４Ｙが形成されている。   A defrosting heater 50 is mounted on the lower surface side of the cooler 28. Accordingly, a heating plate 51 corresponding to a heat conducting member is provided. The heating plate 51 is made of a stainless steel plate and has a main body portion 52 having a size capable of covering the entire lower surface of the cooler 28 as shown in FIG. On the upper surface of the main body 52, a cord-type heater 50 is wired in a zigzag manner. On the front edge and the rear edge of the main body 52, draining holes 53 each having a plurality of long holes are opened side by side. In addition, insertion holes 54X for screws 47 are formed in the left and right ends of the front edge of the main body 52, and a mounting plate 55 is raised from the rear edge of the main body 52. Similarly, an insertion hole 54Y for the screw 47 is formed in the portion.

この加熱板５１の本体部５２は、ヒータ５０を冷却器２８におけるエンドプレート３５の下縁に切り欠き形成された取付溝３６に差し込みつつ冷却器２８の下面に当てられる。そして、取付板５５が冷却器２８の後面の下部に当てられてねじ４７がねじ込まれ、また、本体部５２の前縁が冷却器２８の下面の前縁側にねじ４７で止められて固定されるようになっている。なお、ヒータ５０のリード線（図示せず）は、ユニット台２１に貫通されたもう一方の挿通孔２９Ｙを通して機械室１６内に引き出され、そこに装備された電装箱３７（図１参照）に導かれている。   The main body 52 of the heating plate 51 is applied to the lower surface of the cooler 28 while inserting the heater 50 into a mounting groove 36 formed by cutting out the lower edge of the end plate 35 in the cooler 28. Then, the mounting plate 55 is applied to the lower part of the rear surface of the cooler 28 and the screw 47 is screwed, and the front edge of the main body 52 is fixed to the front edge side of the lower surface of the cooler 28 with the screw 47. It is like that. Note that the lead wire (not shown) of the heater 50 is drawn into the machine room 16 through the other insertion hole 29Y penetrating the unit base 21, and is supplied to the electrical box 37 (see FIG. 1) installed therein. Led.

さて、上記した加熱板５１には、冷却用のファン装置６０が装着されている。このファン装置６０は、ファンモータ６１が、シュラウドを備えたケース６２内に収容された構造であって、２個準備されている。一方、加熱板５１の本体部５２の前縁からは、手前側に向けて上り勾配となって延出されたファン装着部５６が形成されている。このファン装着部５６には、左右２個の円形孔５７が形成されている。ファン装置６０は、円形孔５７を覆うようにしてその上面側に載置され、ケース６２の四隅をねじ４７で止めることにより固定されるようになっている。   A cooling fan device 60 is mounted on the heating plate 51 described above. The fan device 60 has a structure in which a fan motor 61 is accommodated in a case 62 having a shroud, and two fan devices 60 are prepared. On the other hand, from the front edge of the main body portion 52 of the heating plate 51, a fan mounting portion 56 is formed that extends upward toward the near side. The fan mounting portion 56 is formed with two left and right circular holes 57. The fan device 60 is placed on the upper surface side so as to cover the circular hole 57, and is fixed by fixing the four corners of the case 62 with screws 47.

加熱板５１のファン装着部５６の前縁からは、短寸の取付部５８が水平姿勢をなすように曲げ形成されている。この取付部５８が、ユニット台２１における開口部１８内に嵌った前脚２１Ｘの下面に当てられ、その左右両端部をねじ４７で止めることにより固定されるようになっている。両ファン装置６０から引き出されたリード線６３は、ユニット台２１の挿通孔２９Ｙを通して機械室１６内に引き出され、同様に電装箱３７に導かれている。
なお、ユニット台２１の下面には、冷却器２８とファン装置６０との間に位置するようにして、庫内温度を検知する庫内サーミスタ６４が取り付けられている。A short mounting portion 58 is bent from the front edge of the fan mounting portion 56 of the heating plate 51 so as to have a horizontal posture. The mounting portion 58 is applied to the lower surface of the front leg 21X fitted in the opening 18 in the unit base 21 and is fixed by fastening the left and right ends thereof with screws 47. The lead wires 63 drawn from both fan devices 60 are drawn into the machine room 16 through the insertion holes 29Y of the unit base 21, and are similarly led to the electrical equipment box 37.
Note that an in-compartment thermistor 64 that detects the in-compartment temperature is attached to the lower surface of the unit base 21 so as to be positioned between the cooler 28 and the fan device 60.

本実施形態は上記のような構造であって、冷却器室２３付近は例えば以下のようにして組み付けられる。   The present embodiment has the above-described structure, and the vicinity of the cooler chamber 23 is assembled as follows, for example.

ユニット台２１には、その上面に冷凍装置２５が載置されるとともに、下面には冷却器２８と庫内サーミスタ６４が取り付けられる。一方、図３に示すように、加熱板５１の本体部５２の上面にはヒータ５０が配線されるとともに、ファン装着部５６の上面に一対のファン装置６０が取り付けられる。この加熱板５１の本体部５２が、ユニット台２１の下面に取り付けられた冷却器２８の下面に当てられ、ねじ４７で締め付けられて固定される。それとともに、ファン装着部５６の前縁の取付部５８がユニット台２１の前脚２１Ｘに対してねじ４７で締め付けられて固定される。ファン装置６０のリード線６３と、庫内サーミスタ６４のリード線とは、挿通孔２９Ｙを通して上面側に引き出される。   The unit table 21 has the refrigeration apparatus 25 mounted on the upper surface thereof, and the cooler 28 and the internal thermistor 64 are mounted on the lower surface thereof. On the other hand, as shown in FIG. 3, a heater 50 is wired on the upper surface of the main body portion 52 of the heating plate 51, and a pair of fan devices 60 are attached to the upper surface of the fan mounting portion 56. The main body 52 of the heating plate 51 is applied to the lower surface of the cooler 28 attached to the lower surface of the unit base 21, and is fastened and fixed with screws 47. At the same time, the mounting portion 58 at the front edge of the fan mounting portion 56 is fastened and fixed to the front legs 21X of the unit base 21 with screws 47. The lead wire 63 of the fan device 60 and the lead wire of the internal thermistor 64 are drawn to the upper surface side through the insertion hole 29Y.

一方、庫内では、壁４０が、既述したように縦向きの取付板４４のフック４５を開口部１８側の掛止部３２に掛止し、前側の取付板４６をねじ４７で止めることにより張設される。このとき排水口４８が、排水路３３の上端に嵌入される。   On the other hand, as described above, the wall 40 hooks the hook 45 of the vertical mounting plate 44 to the latching portion 32 on the opening 18 side, and the front mounting plate 46 with the screw 47 as described above. It is stretched by. At this time, the drain port 48 is fitted into the upper end of the drain channel 33.

そして、ユニット台２１が開口部１８を塞いで載置されることで冷却器室２３が形成され、図２に示すように、冷却器室２３内の奥側には、冷却器２８が下面にヒータ５０を装着した状態で収容され、また手前側には、２個のファン装置６０が加熱板５１から延出されたファン装着部５６に取り付けられて装備された状態となる。   Then, the cooler chamber 23 is formed by placing the unit base 21 so as to block the opening 18, and as shown in FIG. 2, the cooler 28 is placed on the lower surface inside the cooler chamber 23. The heater 50 is accommodated in a mounted state, and two fan devices 60 are attached to and mounted on the fan mounting portion 56 extended from the heating plate 51 on the front side.

冷却運転は、冷凍装置２５（圧縮機２６）とファン装置６０とが駆動されることで行われ、図１の矢線に示すように、貯蔵室１２内の空気が吸込口４２から冷却器室２３内に吸引され、ファン装置６０を通ったのち、冷却器２８を前方から後方に向けて通過する間に熱交換されて冷気が生成され、この冷気が吹出口４３から貯蔵室１２内に吹き出されるといったように循環されることで、貯蔵室１２内が冷却される。この間、庫内サーミスタ６４によって庫内温度が検知され、検知温度が設定温度よりも高いか低いかによって、冷凍装置２５とファン装置６０の駆動と停止とが制御され、庫内温度がほぼ設定温度に維持される。   The cooling operation is performed by driving the refrigeration device 25 (compressor 26) and the fan device 60, and as shown by the arrow in FIG. 1, the air in the storage chamber 12 passes from the suction port 42 to the cooler chamber. 23, and after passing through the fan device 60, heat is exchanged while passing through the cooler 28 from the front to the rear to generate cold air, and this cold air is blown into the storage chamber 12 from the outlet 43. The inside of the storage chamber 12 is cooled by being circulated as described above. During this time, the internal temperature is detected by the internal thermistor 64, and the driving and stopping of the refrigeration apparatus 25 and the fan apparatus 60 are controlled depending on whether the detected temperature is higher or lower than the set temperature. Maintained.

冷却運転が継続されると、冷却器２８には次第に霜が付着する。また、ファン装置６０についても、例えばケース６２は庫内温度と同程度まで冷却されるし、断熱扉１５を開けたときに侵入した外気が吸込口４２を通して触れやすい位置にあることから、庫内温度が低かったり、外気が高温多湿である等の条件によっては、ケース６２に着霜する可能性がある。   If the cooling operation is continued, frost gradually adheres to the cooler 28. Further, for the fan device 60, for example, the case 62 is cooled to the same level as the inside temperature, and the outside air that has entered when the heat insulating door 15 is opened is in a position where it can be easily touched through the suction port 42. The case 62 may be frosted depending on conditions such as a low temperature or a high temperature and humidity in the outside air.

そこで冷却運転の途中で適宜に除霜運転が行われる。除霜運転は、冷凍装置２５並びにファン装置６０を停止した状態において、ヒータ５０に通電して加熱することで行われる。これにより冷却器２８に付着した霜が融け、除霜水は加熱板５１の本体部５２に設けられた水切り孔５３を通して、壁４０上に滴下する。   Therefore, a defrosting operation is appropriately performed during the cooling operation. The defrosting operation is performed by energizing and heating the heater 50 in a state where the refrigeration apparatus 25 and the fan apparatus 60 are stopped. As a result, the frost adhering to the cooler 28 is melted, and the defrosted water is dripped onto the wall 40 through the drain hole 53 provided in the main body 52 of the heating plate 51.

一方、ヒータ５０の熱が加熱板５１を介してファン装置６０にも伝導され、その熱を受けて、ファン装置６０に付着した霜も融かされ、その除霜水は、直接にあるいは加熱板５１を伝ったのちに壁４０上に滴下する。この除霜水は、上記した冷却器２８からの除霜水ともども、壁４０の底面の傾斜に倣って奥縁の最深部に流下したのち、排水口４８から背面壁の排水路３３に流入され、庫外へと排水される。   On the other hand, the heat of the heater 50 is also conducted to the fan device 60 through the heating plate 51, and the frost adhering to the fan device 60 is melted by receiving the heat. After passing through 51, it is dropped on the wall 40. The defrosted water also flows with the defrosted water from the cooler 28 described above into the deepest part of the inner edge following the inclination of the bottom surface of the wall 40 and then flows into the drainage channel 33 on the back wall from the drainage port 48. The water is drained to the outside.

なおこの間、除霜サーミスタ（図示せず）が冷却器２８の温度を検知しており、冷却器２８の温度が所定温度に達すると除霜が完了したと見なされて、ヒータ５０への通電が遮断され、所定の水切り時間を経たのち、冷却運転が再開される。   During this time, a defrosting thermistor (not shown) detects the temperature of the cooler 28. When the temperature of the cooler 28 reaches a predetermined temperature, it is considered that the defrosting is completed, and the heater 50 is energized. After being shut off and after a predetermined draining time, the cooling operation is resumed.

以上説明したように本実施形態によれば、除霜用のヒータ５０が配線されて冷却器２８の下面に取り付けられた加熱板５１にファン装着部５６を延出して設け、そこにファン装置６０を装備したから、除霜運転時において、ヒータ５０の熱が加熱板５１のファン装着部５６を介してファン装置６０に伝導され、ファン装置６０の除霜が効率良く行われる。   As described above, according to the present embodiment, the fan mounting portion 56 is provided on the heating plate 51 that is wired with the defrosting heater 50 and attached to the lower surface of the cooler 28, and the fan device 60 is provided there. Therefore, during the defrosting operation, the heat of the heater 50 is conducted to the fan device 60 through the fan mounting portion 56 of the heating plate 51, and the fan device 60 is efficiently defrosted.

なお、冷却運転時には、冷却器２８の冷熱が加熱板５１を介してファン装置６０に伝導されることが懸念される。しかしながら冷却運転中には、ファン装置６０が駆動されていて、ファン（羽根）自体は回っているし、ケース６２にも風が当てられるために着霜し難く、すなわち、ファン装置６０が冷却器２８の冷熱の影響で必要以上に冷却されて着霜を助長することはないことが確認されている。ただ、ファン装置６０は、冷凍装置２５ともども、庫内温度が設定温度よりも高いか低いかにより、運転と停止とが繰り返されるようになっているため、ファン装置６０の運転の停止中には、ファンが停止して着霜しやすいとも言えるが、冷凍装置２５の停止に伴って冷却器２８の温度も上がるから、ファン等への着霜は最小限に抑えられる。   During the cooling operation, there is a concern that the cooling heat of the cooler 28 is conducted to the fan device 60 via the heating plate 51. However, during the cooling operation, the fan device 60 is driven, the fan (blade) itself is rotating, and the case 62 is also blown by air, so that it is difficult to form frost. It has been confirmed that the frost formation is not promoted more than necessary due to the influence of the cold 28 and does not promote frost formation. However, since the fan device 60 and the refrigeration device 25 are repeatedly operated and stopped depending on whether the internal temperature is higher or lower than the set temperature, the operation of the fan device 60 is stopped. It can be said that the fan stops and is likely to form frost, but the temperature of the cooler 28 increases as the refrigeration apparatus 25 stops, so that frost formation on the fan or the like is minimized.

それに対して除霜運転中は、ファン装置６０は停止しており、ファンの回転も風の影響も無いことから、ヒータ５０の熱がファン装置６０に良く伝導され、上記のように効率良く除霜が行われる。   On the other hand, during the defrosting operation, the fan device 60 is stopped and there is no influence of the rotation of the fan or the wind. Therefore, the heat of the heater 50 is well conducted to the fan device 60 and is efficiently removed as described above. Frost is done.

また、ファン装置６０を加熱板５１に装着したことにより、以下のような利点を得ることができる。   Moreover, the following advantages can be obtained by mounting the fan device 60 on the heating plate 51.

ファン装置６０は比較的重量が大きくかつ複数備えられていることから、従来のように合成樹脂製の壁４０にファン装置６０が装着されている場合は、当該冷却貯蔵庫の搬送中等に振動を受けた際に、ファン装置６０や壁４０自体が外れることも懸念される。その点この実施形態では、ファン装置６０が剛性の高いステンレス鋼板製の加熱板５１に取り付けられ、かつ加熱板５１はその前後両側がユニット台２１と冷却器２８とにねじ４７で強固に固定されているから、上記のように振動を受けた場合にも、ファン装置６０が外れたり、またファン装置６０が除かれて軽くなった壁４０側が外れることも防止される。   Since the fan device 60 has a relatively large weight and is provided with a plurality of units, when the fan device 60 is mounted on the synthetic resin wall 40 as in the prior art, the fan device 60 is subjected to vibration during transportation of the cooling storage. There is also a concern that the fan device 60 and the wall 40 themselves may come off. In this regard, in this embodiment, the fan device 60 is attached to a heating plate 51 made of a stainless steel plate having high rigidity, and the heating plate 51 is firmly fixed to the unit base 21 and the cooler 28 with screws 47 on both front and rear sides. Therefore, even when subjected to vibration as described above, it is possible to prevent the fan device 60 from coming off and the lighter wall 40 side from being removed by the fan device 60 being removed.

冷却器２８に着霜する際には庫内の不純物も同時に付着し、この不純物は通常の除霜運転では簡単に除去できないため、冷却器２８は定期的に掃除することが望ましい。この実施形態では、壁４０にファン装置６０が装備されておらず、ねじ４７を緩め、またフック４５を掛止部３２から外しつつ、壁４０を単体で簡単に外すことができる。その結果冷却器２８の下方が開放されて、冷却器２８の掃除を簡単に行うことができる。   When the cooler 28 is frosted, impurities in the cabinet are also attached at the same time, and these impurities cannot be easily removed by a normal defrosting operation. Therefore, it is desirable to clean the cooler 28 periodically. In this embodiment, the wall 40 is not equipped with the fan device 60, and the wall 40 can be easily removed alone while loosening the screw 47 and removing the hook 45 from the hooking portion 32. As a result, the lower part of the cooler 28 is opened, and the cooler 28 can be easily cleaned.

この種の業務用冷却貯蔵庫を設置する場合、例えば部屋の入口の間口寸法不足等によって傾けて通さねばならないときがあり、そのときは冷凍ユニット２０を取り外すことが多い。従来のようにファン装置６０が壁４０に装着されていると、リード線６３がユニット台２１を貫通して引き出されているために、リード線６３を一旦切断する必要がある。その点本実施形態では、ファン装置６０が冷凍ユニット２０を構成する加熱板５１に装着され、それに伴いリード線６３も冷凍ユニット２０に含まれているから、冷凍ユニット２０を外すに当たって、リード線６３を切断することが不要である。   When installing this type of commercial cooling storage, there are cases where it is necessary to incline it through, for example, due to insufficient dimension of the entrance of the room, in which case the refrigeration unit 20 is often removed. When the fan device 60 is mounted on the wall 40 as in the prior art, since the lead wire 63 is drawn through the unit base 21, it is necessary to cut the lead wire 63 once. In this respect, in the present embodiment, the fan device 60 is mounted on the heating plate 51 constituting the refrigeration unit 20, and the lead wire 63 is also included in the refrigeration unit 20. Accordingly, the lead wire 63 is removed when the refrigeration unit 20 is removed. It is not necessary to cut off.

また、冷凍ユニット２０を外して床等に置いた場合、床と接するのは加熱板５１であるから、ヒータ５０に損傷を与えるおそれはない。   Further, when the refrigeration unit 20 is removed and placed on the floor or the like, it is the heating plate 51 that contacts the floor, so there is no possibility of damaging the heater 50.

＜実施形態２＞   <Embodiment 2>

図５及び図６は本発明の実施形態２を示す。この実施形態２では加熱板５１Ａの形状に変更が加えられている。   5 and 6 show Embodiment 2 of the present invention. In the second embodiment, the shape of the heating plate 51A is changed.

この加熱板５１Ａでは、上記実施形態１に示した加熱板５１に対し、図６に示すように、取付部５８の前縁から、多数のパンチ孔６６を開口してなるガード部６５が垂下状に曲げ形成されている。そして図５に示すように、加熱板５１Ａの取付部５８が、ユニット台２１の前脚２１Ｘに取り付けられたとき、ガード部６５は、壁４０の吸込口４２の直ぐ内側に垂下して配されるようになっている。   In the heating plate 51A, as shown in FIG. 6, the guard portion 65 formed by opening a large number of punch holes 66 from the front edge of the mounting portion 58 is drooping with respect to the heating plate 51 shown in the first embodiment. It is bent and formed. As shown in FIG. 5, when the attachment portion 58 of the heating plate 51 </ b> A is attached to the front leg 21 </ b> X of the unit base 21, the guard portion 65 is arranged to hang down immediately inside the suction port 42 of the wall 40. It is like that.

このように本実施形態では、吸込口４２を通して異物がファン装置６０のファンモータ６１と干渉することが、ガード部６５で遮られて阻止される。   As described above, in the present embodiment, the foreign matter that interferes with the fan motor 61 of the fan device 60 through the suction port 42 is blocked and prevented by the guard portion 65.

一方このガード部６５にも着霜する可能性があるが、ガード部６５は加熱板５１Ａと一体に形成されているから、除霜運転時においてヒータ５０の熱が加熱板５１Ａを介してガード部６５まで伝導され、効率良く除霜される。ガード部６５は壁４０内に配されているから、除霜水はすべて壁４０で受けられ、庫内に滴下することはない。   On the other hand, there is a possibility that the guard portion 65 may also form frost. However, since the guard portion 65 is formed integrally with the heating plate 51A, the heat of the heater 50 is removed via the heating plate 51A during the defrosting operation. Conducted up to 65 for efficient defrosting. Since the guard part 65 is arranged in the wall 40, all the defrost water is received by the wall 40 and is not dripped into the cabinet.

＜実施形態３＞   <Embodiment 3>

図７ないし図８は本発明の実施形態３を示す。   7 to 8 show Embodiment 3 of the present invention.

この実施形態３では、壁４０Ｂについて、前壁４１Ｘ側に吸込口４２が切欠形成されていることに加え、左右の側壁４１Ｚの前端部にも吸込口４２Ｂが開口されている。両吸込口４２Ｂの下縁は、壁４０Ｂの底面よりも若干高い位置にある。また、フック４５を設けた左右の取付板４４にも、左右の吸込口４２Ｂの内方に対応する位置に、窓孔６８が開口されている。   In the third embodiment, the suction port 42 is notched on the front wall 41X side of the wall 40B, and the suction ports 42B are also opened at the front end portions of the left and right side walls 41Z. The lower edges of both suction ports 42B are located slightly higher than the bottom surface of the wall 40B. Further, the left and right mounting plates 44 provided with the hooks 45 are also provided with window holes 68 at positions corresponding to the inner sides of the left and right suction ports 42B.

加熱板５１Ｂには、前壁４１Ｘ側の吸込口４２の直ぐ内側に位置するガード部６５に加え、左右の取付板４４における窓孔６８の直ぐ内側に位置するガード部６５Ｂが形成されている。このガード部６５Ｂも、多数のパンチ孔６６を開口した構造である。   In the heating plate 51B, in addition to the guard portion 65 positioned immediately inside the suction port 42 on the front wall 41X side, a guard portion 65B positioned immediately inside the window holes 68 in the left and right mounting plates 44 is formed. This guard portion 65B also has a structure in which a large number of punch holes 66 are opened.

この実施形態３では、庫内空気の吸込口４２，４２Ｂを、壁４０Ｂの前壁４１Ｘに加えて、それを挟んだ左右の側壁４１Ｚの都合３面に形成したから、所定の吸込面積を確保する場合に貯蔵庫本体１０の前面の出入口１４を向いた吸込口４２は狭くすることができる。そのため、断熱扉１５の開閉に伴って侵入する外気の吸込量を減少でき、ガード部６５，６５Ｂさらにはファン装置６０への着霜が抑えられる。   In the third embodiment, the air inlets 42 and 42B for the internal air are formed on the three convenient surfaces of the left and right side walls 41Z in addition to the front wall 41X of the wall 40B, so that a predetermined suction area is secured. In this case, the inlet 42 facing the entrance 14 on the front surface of the storage body 10 can be narrowed. Therefore, the amount of outside air that intrudes when the heat insulating door 15 is opened and closed can be reduced, and frost formation on the guard portions 65 and 65B and the fan device 60 can be suppressed.

またガード部６５，６５Ｂが、３面にわたって形成されて面積が広くなっているから、外気が触れる場合に分散し、着霜し難くなる。   Moreover, since the guard parts 65 and 65B are formed over three surfaces and have a large area, they are dispersed when exposed to outside air, and frost formation is difficult.

仮にガード部６５，６５Ｂに着霜したとしても、加熱板５１Ｂと一体に形成されているから、除霜運転時においてヒータ５０の熱がガード部６５，６５Ｂまで伝導され、ファン装置６０ともども効率良く除霜される。同様にガード部６５，６５Ｂは壁４０Ｂ内に配されているから、除霜水はすべて壁４０Ｂで受けられ、庫内に滴下することはない。   Even if the guard portions 65 and 65B are frosted, since they are formed integrally with the heating plate 51B, the heat of the heater 50 is conducted to the guard portions 65 and 65B during the defrosting operation, and the fan device 60 is also efficiently restored. Defrosted. Similarly, since the guard portions 65 and 65B are arranged in the wall 40B, all the defrost water is received by the wall 40B and is not dripped into the cabinet.

＜実施形態４＞   <Embodiment 4>

本発明の実施形態４を図９ないし図１３によって説明する。   A fourth embodiment of the present invention will be described with reference to FIGS.

この実施形態には、壁４０Ｃの排水口４８Ｃを加熱する手段が備えられている。そのため図１０に示すように、熱伝導部材７０が設けられている。この熱伝導部材７０は、金属板をプレス加工して形成されており、基板７１における幅方向の中央部に溝７２が形成される一方、後縁からは、その溝７２と連通するようにして上面開放のパイプ部７３が延出して形成されている。このパイプ部７３は、壁４０Ｃの排水口４８Ｃ内に、先端同士を揃えて緊密に嵌合可能とされている。パイプ部７３の左右の側面には係止爪７４が切り起こしによって形成されているとともに、排水口４８Ｃの左右の側面には、係止爪７４が係止される係止孔７５が形成されている。パイプ部７３の基端側の左右の側面における底部側には、導入口７６が開口されている。また、パイプ部７３の先端からは、舌片状の水切り部７７が曲げ形成されている。   In this embodiment, means for heating the drain port 48C of the wall 40C is provided. Therefore, as shown in FIG. 10, a heat conducting member 70 is provided. The heat conducting member 70 is formed by pressing a metal plate, and a groove 72 is formed in the central portion of the substrate 71 in the width direction, and communicates with the groove 72 from the rear edge. A pipe portion 73 having an open upper surface is formed to extend. The pipe portion 73 can be fitted tightly with its ends aligned in the drain port 48C of the wall 40C. Locking claws 74 are formed by cutting and raising the left and right side surfaces of the pipe portion 73, and locking holes 75 for locking the locking claws 74 are formed on the left and right side surfaces of the drain port 48C. Yes. An introduction port 76 is opened on the bottom side of the left and right side surfaces on the proximal end side of the pipe portion 73. Further, a tongue-shaped draining portion 77 is bent from the tip of the pipe portion 73.

この熱伝導部材７０の基板７１が、加熱板５１の本体部５２における後部側の底面に当てられ、スポット溶接等で接着されている。   The substrate 71 of the heat conducting member 70 is applied to the bottom surface on the rear side of the main body 52 of the heating plate 51 and bonded by spot welding or the like.

なお、壁４０Ｃの前壁には、図１３に示すように、左右一対の吸込口４２Ｃが間隔を開けて開口されている。また、前壁の上縁のほぼ全幅にわたってフランジ状の取付板４６Ｃが形成されており、その左右両端に挿通孔７８が開口されている。両挿通孔７８には、コインＣによって回転操作が可能な化粧ねじ４７Ｃが挿通され、貯蔵庫本体１０の天井面における開口部１８の前縁側に切られたねじ孔７９に螺合して締め付けることで、固定されるようになっている。   As shown in FIG. 13, a pair of left and right suction ports 42C are opened at intervals in the front wall of the wall 40C. Further, a flange-like mounting plate 46C is formed over substantially the entire width of the upper edge of the front wall, and insertion holes 78 are opened at both left and right ends thereof. A decorative screw 47C that can be rotated by a coin C is inserted into both the insertion holes 78, and screwed into a screw hole 79 cut on the front edge side of the opening 18 on the ceiling surface of the storage body 10 to be tightened. It is supposed to be fixed.

また、取付板４６Ｃの幅方向の中央部には磁石８１が装着される一方、貯蔵庫本体１０の天井面の対応する位置には、上記の磁石８１に感応するリードスイッチ８２が埋設されており、壁４０Ｃの取り付けの有無を検知する検知手段８０が構成されている。   In addition, a magnet 81 is attached to the central portion in the width direction of the mounting plate 46C, and a reed switch 82 sensitive to the magnet 81 is embedded in a corresponding position on the ceiling surface of the storage body 10; A detecting means 80 for detecting whether or not the wall 40C is attached is configured.

組み付けは、以下のようにして行われる。熱伝導部材７０は上記のように加熱板５１に接着され、ファン装置６０を取り付けた加熱板５１が冷却器２８の下面に取り付けられることに伴って、冷凍ユニット２０の一部として組み付けられる。一方、庫内では、壁４０Ｃが予め張設され、排水口４８Ｃは排水路３３に嵌入される。   Assembly is performed as follows. The heat conducting member 70 is bonded to the heating plate 51 as described above, and is assembled as a part of the refrigeration unit 20 when the heating plate 51 to which the fan device 60 is attached is attached to the lower surface of the cooler 28. On the other hand, in the warehouse, the wall 40 </ b> C is stretched in advance, and the drain port 48 </ b> C is fitted into the drain channel 33.

そして、冷凍ユニット２０のユニット台２１が、冷却器２８等を開口部１８から中に入れつつ開口部１８を塞いで載置される際に、図１２（Ａ）に示すように、熱伝導部材７０のパイプ部７３を、壁４０Ｃの排水口４８Ｃ内に手前側の上方から嵌める。パイプ部７３は係止爪７４を撓み変形させつつ押し込まれ、所定位置まで嵌められたら、同図（Ｂ）に示すように、係止爪７４が復元して係止孔７５に係止することで、パイプ部７３が排水口４８Ｃ内に密着した状態に固定される。このときパイプ部７３の導入口７６は、壁４０Ｃの奥壁４１Ｙの内側に位置するようになっている。   Then, when the unit base 21 of the refrigeration unit 20 is placed with the cooler 28 and the like being inserted from the opening 18 while closing the opening 18, as shown in FIG. 70 pipe parts 73 are fitted into the drain port 48C of the wall 40C from the upper side on the front side. When the pipe portion 73 is pushed in while deforming the locking claw 74 and is fitted to a predetermined position, the locking claw 74 is restored and locked in the locking hole 75 as shown in FIG. Thus, the pipe portion 73 is fixed in a state of being in close contact with the drain port 48C. At this time, the introduction port 76 of the pipe part 73 is located inside the back wall 41Y of the wall 40C.

除霜運転は、同様にヒータ５０に通電して加熱することで行われ、冷却器２８からの除霜水は、加熱板５１の本体部５２に設けられた水切り孔５３を通して、熱伝導部材７０の溝７２内に滴下してパイプ部７３内に流入し、あるいは同水切り孔５３から壁４０Ｃ上に滴下し、その最深部に流下したのち導入口７６からパイプ部７３内に流入し、排水路３３に向けて排水される。   Similarly, the defrosting operation is performed by energizing and heating the heater 50, and the defrosting water from the cooler 28 passes through the drain holes 53 provided in the main body 52 of the heating plate 51, and the heat conducting member 70. Drops into the groove 72 and flows into the pipe portion 73 or drops onto the wall 40C from the drain hole 53, flows down to the deepest portion thereof, flows into the pipe portion 73 from the inlet 76, and drains. Drained toward 33.

またファン装置６０に着霜があった場合も、ヒータ５０の熱が加熱板５１を介してファン装置６０にも伝導されることで効率良く除霜され、同様に除霜水は壁４０Ｃで受けられたのちパイプ部７３を通って排出される。   In addition, when the fan device 60 is frosted, the heat of the heater 50 is also conducted to the fan device 60 through the heating plate 51 to efficiently defrost, and similarly, the defrost water is received by the wall 40C. After that, it is discharged through the pipe portion 73.

ここで上記のような除霜運転時おいて、排水口４８Ｃすなわちパイプ部７３内に水滴や霜の小さな塊が残っていると、冷却運転が再開された際、特に冷凍庫のように庫内温度が−２０℃程度に維持される場合には、パイプ部７３内で氷結して目詰まりし、次の除霜運転時に除霜水の排水ができないおそれがある。   Here, during the defrosting operation as described above, when a small lump of water droplets or frost remains in the drain outlet 48C, that is, the pipe portion 73, the temperature inside the chamber, particularly like a freezer, when the cooling operation is resumed. However, when the temperature is maintained at about −20 ° C., the pipe portion 73 is frozen and clogged, and the defrost water may not be discharged during the next defrosting operation.

その点この実施形態では、除霜運転時には、ヒータ５０の熱が加熱板５１を介して、これと一体に接着された熱伝導部材７０のパイプ部７３に伝導されてこれを加熱するから、氷結があった場合もこれを融かして目詰まりを解消し、その結果除霜水がスムーズに排水される。すなわち、壁４０Ｃの排水口４８Ｃでの目詰まりを防止するべく格別の加熱手段を設けることが不要にできる。   In this respect, in this embodiment, during the defrosting operation, the heat of the heater 50 is conducted through the heating plate 51 to the pipe portion 73 of the heat conducting member 70 bonded integrally therewith to heat it. Even if there is, it is melted to eliminate clogging, and as a result, the defrost water is drained smoothly. That is, it is unnecessary to provide a special heating means to prevent clogging at the drain port 48C of the wall 40C.

一方、掃除を行うに際して壁４０Ｃを外す場合は、まず化粧ねじ４７Ｃを外すが、上記のように工具を用いなくてもコインＣで外せるから便利である。それとともに、図１２（Ｂ）の状態から両係止爪７４を内側に撓み変形させると、排水口４８Ｃとパイプ部７３との係止が解除されるから、フック４５を掛止部３２から外しつつ、壁４０Ｃを単体で外すことができる。なお、この壁４０Ｃを単体で外せることは、壁４０Ｃ側に排水口４８Ｃを加熱するためのヒータを設けることが不要で、したがって冷凍ユニット２０側との間にリード線を配線する必要が無いことも大きな要因となっている。   On the other hand, when removing the wall 40C for cleaning, the decorative screw 47C is first removed, but it is convenient because the coin C can be removed without using a tool as described above. At the same time, if both the locking claws 74 are bent and deformed inward from the state of FIG. 12B, the locking between the drain port 48C and the pipe portion 73 is released, so the hook 45 is removed from the hooking portion 32. Meanwhile, the wall 40C can be removed alone. The removal of the wall 40C as a single unit does not require a heater for heating the drain port 48C on the wall 40C side, and therefore there is no need to wire a lead wire to the refrigeration unit 20 side. Is also a major factor.

このように壁４０Ｃを単体で外せる結果、壁４０Ｃ自身の洗浄が簡単にでき、また冷却器２８の下方が開放されて、冷却器２８の掃除も簡単に行うことができ、悪臭や雑菌の繁殖を抑えて衛生的に保つことができる。   As a result of removing the wall 40C as a single unit, the wall 40C itself can be easily cleaned, the lower part of the cooler 28 is opened, and the cooler 28 can be easily cleaned. Can be kept hygienic.

また本実施形態では、壁４０Ｃの取り付けの有無を検知する検知手段８０が装備されている。例えば上記のように掃除を行う場合は、基本的には電源を切るのであるが、仮に忘れた場合でも、検知手段８０が壁４０Ｃが外されたことを検知した場合に、ブザー等の警告を発し、またファン装置６０を停止するようにすれば、ファン装置６０が回転した状態で掃除をすることが未然に防止できる。   Moreover, in this embodiment, the detection means 80 which detects the presence or absence of attachment of the wall 40C is equipped. For example, when cleaning is performed as described above, the power is basically turned off, but even if it is forgotten, a warning such as a buzzer is issued when the detection means 80 detects that the wall 40C has been removed. If the fan device 60 is stopped and the fan device 60 is stopped, it is possible to prevent the fan device 60 from being cleaned in the rotated state.

＜実施形態５＞   <Embodiment 5>

本発明の実施形態５を図１４及び図１５によって説明する。   A fifth embodiment of the present invention will be described with reference to FIGS.

この実施形態５では、ファン装置６０が、冷却器２８の前面側において、冷却器２８の前端面と平行姿勢で配されるようになっている。そのため、加熱板５１Ｄの本体部５２の前縁からは、所定寸法前方に延出されたのち直角に立ち上げられたファン装着部５６Ｄが形成されている。このファン装着部５６Ｄには、同様に左右２個の円形孔５７が形成され、ファン装置６０は、円形孔５７を覆うようにして裏面側から当てられ、ケース６２の四隅をねじ４７で止めることにより固定されている。   In the fifth embodiment, the fan device 60 is arranged in parallel with the front end surface of the cooler 28 on the front side of the cooler 28. Therefore, a fan mounting portion 56D is formed from the front edge of the main body portion 52 of the heating plate 51D so as to extend forward by a predetermined dimension and then be raised at a right angle. The fan mounting portion 56D is similarly formed with two left and right circular holes 57. The fan device 60 is applied from the back side so as to cover the circular holes 57, and the four corners of the case 62 are fixed with screws 47. It is fixed by.

ファン装着部５６Ｄには、その上縁と左右の側縁に、前方に直角曲げされた取付部５８Ｄが形成されている。上面の取付部５８Ｄがユニット台２１の下面にねじ４７で止められている。一方、左右の取付部５８Ｄと冷却器２８の側面との間の隙間には、サイドパネル８５がわたされて張られている。それにより、ファン装置６０で引かれた庫内空気が確実に冷却器２８に導かれる。   The fan mounting portion 56D is formed with mounting portions 58D that are bent forward at a right angle at the upper edge and the left and right side edges. The upper mounting portion 58D is fixed to the lower surface of the unit base 21 with screws 47. On the other hand, a side panel 85 is stretched across the gap between the left and right attachment portions 58D and the side surface of the cooler 28. Thereby, the internal air drawn by the fan device 60 is reliably guided to the cooler 28.

また、ファン装着部５６Ｄの前方を覆うようにして、ファンガード８６が設けられている。このファンガード８６は、金属板によって上面と背面とが開口された箱形に形成され、各面には多数のパンチ孔８７が開口されている。このファンガード８６の左右の側板が、左右の取付部５８Ｄの外側に嵌められ、ねじで共締めされて固定されている。ファンガード８６の前面には、庫内サーミスタ６４が取り付けられている。   A fan guard 86 is provided so as to cover the front of the fan mounting portion 56D. The fan guard 86 is formed in a box shape having an upper surface and a rear surface opened by a metal plate, and a large number of punch holes 87 are opened on each surface. The left and right side plates of the fan guard 86 are fitted to the outside of the left and right attachment portions 58D, and are fastened together by screws. An internal thermistor 64 is attached to the front surface of the fan guard 86.

なお、庫内空気の吸込口４２Ｄは、壁４０Ｄにおける前端側の下面に設けられている。詳細には、ファンガード８６の配設位置よりも前方の領域において***部８８が形成され、その上面に多数のスリット８９が並んで切られることで形成されている。   The internal air inlet 42D is provided on the lower surface on the front end side of the wall 40D. Specifically, a raised portion 88 is formed in a region ahead of the position where the fan guard 86 is disposed, and a large number of slits 89 are formed side by side on the upper surface thereof.

その他の構造については、上記した実施形態１と同様である。   Other structures are the same as those in the first embodiment.

この実施形態５でも、加熱板５１Ｄと一体に形成されたファン装着部５６Ｄにファン装置６０が装備されているから、除霜運転時において、同様にヒータ５０の熱が加熱板５１Ｄのファン装着部５６Ｄを介してファン装置６０に伝導され、ファン装置６０の除霜が効率良く行われる。   Also in the fifth embodiment, since the fan device 60 is mounted on the fan mounting portion 56D formed integrally with the heating plate 51D, the heat of the heater 50 is similarly applied to the fan mounting portion of the heating plate 51D during the defrosting operation. It is conducted to the fan device 60 through 56D, and the fan device 60 is defrosted efficiently.

また、ファン装置６０の前方を覆うようにしてファンガード８６が配されているから、例えば壁４０Ｄを外してメンテナンス等を行っている場合に、回転しているファン装置６０のファンモータ６１に異物が干渉すること等が阻止される。ファンガード８６は、４面にわたって形成されて面積が広くなっているから、外気が触れる場合に分散して着霜し難く、もって目詰まりすることが抑えられる。   Further, since the fan guard 86 is arranged so as to cover the front of the fan device 60, for example, when the maintenance is performed by removing the wall 40D, a foreign object is attached to the fan motor 61 of the rotating fan device 60. Are prevented from interfering with each other. Since the fan guard 86 is formed over four surfaces and has a large area, it is difficult to disperse and form frost when exposed to the outside air, and clogging is suppressed.

ファンガード８６に着霜したとしても、このファンガード８６は加熱板５１Ｄと一体的に結合されているから、除霜運転時においてヒータ５０の熱が加熱板５１Ｄを介してファンガード８６に伝導され、効率良く除霜される。ファンガード８６は、壁４０Ｄ内でしかも吸込口４２Ｄよりも奥に配されているから、除霜水はすべて壁４０Ｄで受けられ、庫内に滴下することはない。   Even if the fan guard 86 is frosted, the fan guard 86 is integrally coupled to the heating plate 51D, so that the heat of the heater 50 is conducted to the fan guard 86 through the heating plate 51D during the defrosting operation. Defrosted efficiently. Since the fan guard 86 is disposed in the wall 40D and behind the suction port 42D, all the defrost water is received by the wall 40D and does not drop into the cabinet.

＜参考例１＞ < Reference Example 1 >

参考例１を図１６によって説明する。 Reference Example 1 will be described with reference to FIG.

参考例１は、ファン装置６０が壁４０Ｅに装備されている形式を示す。基本的な構造は、壁４０Ｅの下面の前端側に吸込口４２Ｅが開口され、この吸込口４２Ｅの内面側にファン装置６０が装着されているとともに、外面側にファンガード９０が取り付けられている。一方除霜用として、冷却器２８の下面には、ヒータ５０がジグザグ状に配線されて装着されているとともに、壁４０Ｅ上には、冷却器２８の下方からファン装置６０の配設位置にわたって熱伝導部材に相当する金属製の伝熱板９１が敷かれている。 Reference Example 1 shows a form in which the fan device 60 is mounted on the wall 40E. The basic structure is that a suction port 42E is opened on the front end side of the lower surface of the wall 40E, a fan device 60 is mounted on the inner surface side of the suction port 42E, and a fan guard 90 is attached on the outer surface side. . On the other hand, for defrosting, a heater 50 is mounted in a zigzag manner on the lower surface of the cooler 28, and heat is applied on the wall 40E from the lower side of the cooler 28 to the position where the fan device 60 is disposed. A metal heat transfer plate 91 corresponding to the conductive member is laid.

除霜運転は同様に、ヒータ５０に通電することで行われ、冷却器２８からの除霜水は壁４０Ｅで受けられて排水される。除霜サーミスタ９３により冷却器２８が所定温度まで上昇したことが検知されたら、除霜が完了したと見なされて除霜運転が終了する。   Similarly, the defrosting operation is performed by energizing the heater 50, and the defrosting water from the cooler 28 is received by the wall 40E and drained. When the defrosting thermistor 93 detects that the cooler 28 has risen to a predetermined temperature, it is considered that the defrosting has been completed, and the defrosting operation is completed.

ところで、ファン装置６０、特にファンガード９０にも着霜する場合がある。従来では除霜運転の際、ヒータ５０、冷却器２８からの放射熱を受けて伝熱板９１が加熱され、伝熱板９１上に落下した霜の塊ともども、ファン装置６０の着霜を融かすようにしていた。しかしながら、伝熱板９１の加熱は、上記のようにヒータ５０、冷却器２８からの放射熱に依っているために温度上昇はさほど見込めず、十分に融かし切れない場合があった。   By the way, the fan device 60, in particular, the fan guard 90 may be frosted. Conventionally, during the defrosting operation, the heat transfer plate 91 is heated by receiving the radiant heat from the heater 50 and the cooler 28, and the frost lump that has fallen on the heat transfer plate 91 is also melted. I was trying to blur. However, since the heating of the heat transfer plate 91 depends on the radiant heat from the heater 50 and the cooler 28 as described above, the temperature rise cannot be expected so much and it may not be sufficiently melted.

そこでこの参考例１では、ヒータ５０の端部５０Ｘを下げて、伝熱板９１に接触させた構造となっている。 Therefore, in the first reference example , the end 50X of the heater 50 is lowered and brought into contact with the heat transfer plate 91.

したがって除霜運転時には、ヒータ５０によって伝熱板９１が直接に、すなわち熱伝導によって加熱されるために十分に高温とされ、ファンガード９０等のファン装置６０側の除霜も確実に行うことができる。   Therefore, during the defrosting operation, the heat transfer plate 91 is heated by the heater 50 directly, that is, by heat conduction, so that the temperature is sufficiently high, and the defrosting on the fan device 60 side such as the fan guard 90 can be reliably performed. it can.

＜参考例２＞ < Reference Example 2 >

図１７は、参考例２を示す。 FIG. 17 shows Reference Example 2 .

この参考例２では、基本的な構造は上記参考例１と同じであって、伝熱板９１の加熱構造に変更が加えられている。 In the reference example 2 , the basic structure is the same as that of the reference example 1, and the heating structure of the heat transfer plate 91 is changed.

すなわち、一縁側に折曲部９６を設けた金属板製の接触板９５が備えられ、この接触板９５が、伝熱板９１上におけるファン装置６０の奥側にスポット溶接等で固着され、その折曲部９６の先端が、冷却器２８の下面に接触されている。   That is, a contact plate 95 made of a metal plate provided with a bent portion 96 on one edge side is provided, and this contact plate 95 is fixed to the back side of the fan device 60 on the heat transfer plate 91 by spot welding or the like. The tip of the bent portion 96 is in contact with the lower surface of the cooler 28.

除霜運転時には、ヒータ５０によって冷却器２８が加熱されるが、その冷却器２８の熱が接触板９５を介して伝熱板９１に伝導されるために、伝熱板９１が十分に高温とされ、同様にファンガード９０等のファン装置６０側の除霜も確実に行うことができる。   During the defrosting operation, the cooler 28 is heated by the heater 50. Since the heat of the cooler 28 is conducted to the heat transfer plate 91 via the contact plate 95, the heat transfer plate 91 has a sufficiently high temperature. Similarly, defrosting on the fan device 60 side such as the fan guard 90 can also be reliably performed.

＜他の実施形態＞   <Other embodiments>

本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。   The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

（１）実施形態３において、壁４０Ｂの左右の取付板４４に窓孔６８を開口することに代えて、取付板４４の前端側を切除してもよい。   (1) In Embodiment 3, instead of opening the window holes 68 in the left and right mounting plates 44 of the wall 40B, the front end side of the mounting plate 44 may be cut off.

（２）同実施形態３において、吸込口は、前面に加えて左右いずれか一方の側面に設けるだけでもよい。   (2) In the third embodiment, the suction port may be provided only on the left or right side surface in addition to the front surface.

（３）実施形態４において、熱伝導部材７０は、冷却器２８の下面に取り付けるようにしてもよい。   (3) In the fourth embodiment, the heat conducting member 70 may be attached to the lower surface of the cooler 28.

（４）同実施形態４において、熱伝導部材は必ずしも排水口内に嵌るパイプ部を備える必要はなく、排水口に接触する接触部を設けただけのものであってもよい。   (4) In the fourth embodiment, the heat conducting member is not necessarily provided with a pipe portion that fits into the drain port, and may be provided only with a contact portion that contacts the drain port.

（５）除霜用の加熱手段としては、ヒータに限らず、ホットガスが流通されるホットガス管であってもよい。 (5) The heating means for defrosting is not limited to a heater, and may be a hot gas pipe through which hot gas is circulated.

Claims (4)

天井部にドレンパンを兼ねた壁が張設されることで冷却器室が区画形成され、かつ天井壁に開口部が形成された貯蔵庫本体と、
ユニット台の上面に冷凍装置が、下面に前記冷凍装置とともに冷凍サイクルを構成する冷却器がそれぞれ装着されてユニット化された冷凍ユニットとが設けられ、
この冷凍ユニットの前記ユニット台が前記貯蔵庫本体の天井壁の前記開口部を塞いで載置されることで、前記冷却器が前記冷却器室内に収容されているとともに、
前記冷却器との熱交換により生成された冷気を前記貯蔵庫本体内に循環供給する冷却ファン装置が設けられ、
前記冷却器には、当該冷却器の除霜を行うべく加熱装置が装着された加熱板が取り付けられ、この加熱板から延出されたファン装着部に前記冷却ファン装置が装着されている冷却貯蔵庫。 Ceiling cooler chamber by walls which also serves as a drain pan is stretched is partitioned and formed, and a storage body having an opening formed in the ceiling wall,
A refrigeration unit is provided on the upper surface of the unit table, and a refrigeration unit is provided on the lower surface with a refrigeration unit and a refrigerator constituting a refrigeration cycle mounted on the lower surface.
While the unit stand of the refrigeration unit is placed by closing the opening of the ceiling wall of the storage body, the cooler is accommodated in the cooler chamber,
A cooling fan device that circulates and supplies cold air generated by heat exchange with the cooler into the storage body is provided ,
The cooler is provided with a heating plate on which a heating device is mounted to defrost the cooler, and the cooling fan device is mounted on a fan mounting portion extending from the heating plate. . 請求項１記載の冷却貯蔵庫において、前記壁が前記貯蔵庫本体の前面開口側から奥側に向けて下り勾配で張られて前記冷却器室が区画され、この冷却器室内の奥側に前記冷却器が収容されて、この冷却器の下面から手前側に延出して設けられた前記加熱板のファン装着部に前記冷却ファン装置が装着されているとともに、前記壁の手前側の端部に庫内空気の吸込口が、奥側に冷気の吹出口がそれぞれ設けられており、かつ前記吸込口は、前記壁における前面とそれと隣り合った側面とに分かれて設けられている。 2. The cooling storage according to claim 1 , wherein the wall is stretched downwardly from the front opening side of the storage body toward the back side to partition the cooler chamber, and the cooler chamber is provided on the back side of the cooler chamber. The cooling fan device is mounted on the fan mounting portion of the heating plate provided so as to extend from the lower surface of the cooler to the near side, and inside the cabinet at the near end of the wall. The air inlet is provided with a cold air outlet on the back side, and the inlet is provided separately on the front surface of the wall and the side surface adjacent thereto. 請求項１又は請求項２記載の冷却貯蔵庫において、前記加熱板には、前記冷却ファン装置の前方を覆うガード部が設けられている。 3. The cooling storage according to claim 1 , wherein the heating plate is provided with a guard portion that covers a front side of the cooling fan device. 請求項１ないし請求項３のいずれかに記載の冷却貯蔵庫において、前記壁の奥端側には排水口が突設され、前記貯蔵庫本体の壁面に設けられた排水路と接続されており、前記加熱板には、前記排水口と接触する接触部が設けられている。 In the cooling storage in any one of Claims 1 thru | or 3, the drain outlet is protrudingly provided in the back end side of the said wall , It is connected with the drainage channel provided in the wall surface of the said storage main body, The heating plate is provided with a contact portion that contacts the drain port.
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