JPH03225172A - Forced circulation type cooling storeroom - Google Patents
Forced circulation type cooling storeroomInfo
- Publication number
- JPH03225172A JPH03225172A JP2237490A JP2237490A JPH03225172A JP H03225172 A JPH03225172 A JP H03225172A JP 2237490 A JP2237490 A JP 2237490A JP 2237490 A JP2237490 A JP 2237490A JP H03225172 A JPH03225172 A JP H03225172A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchange
- fins
- evaporator
- area
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 34
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 150000002739 metals Chemical class 0.000 abstract 2
- 238000009423 ventilation Methods 0.000 description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は強制循環式冷却貯蔵庫に関するものである。[Detailed description of the invention] (b) Industrial application fields The present invention relates to forced circulation refrigerated storage.
（ロ）従来の技術
従来技術として、例えば、実公昭６１−６８７号公報に
は、機内の冷気通路内に蛇行冷媒パイプおよびフィンか
らなる冷却器を設置した冷却機において、該冷却器の左
右端板より左右側方に突き畠した冷媒パイプのＵベンド
部分域の下流側に該Ｕベンド部分域の冷気通風路を閉鎖
する仕切壁を設けるとともに、前記端板に該端板とフィ
ン域との間に区画された冷気通風路に連通する通風孔を
開口して設け、該通風孔を通して送風空気流の一部を端
板の外側よりフィン域内へ向ってバイパスさせるように
したフィン付き冷却器を備えた冷気通風形冷却機が開示
されている。(B) Prior art As a prior art, for example, Japanese Utility Model Publication No. 61-687 discloses a cooling machine in which a cooler consisting of a meandering refrigerant pipe and fins is installed in a cold air passage inside the machine, and the left and right ends of the cooler are A partition wall is provided on the downstream side of the U-bend area of the refrigerant pipe protruding from the left and right sides of the plate to close the cold air ventilation path of the U-bend area, and a partition wall is provided on the end plate to connect the end plate and the fin area. A finned cooler is provided with a ventilation hole that communicates with a cold air ventilation path partitioned in between, and a part of the blown air flow is bypassed from the outside of the end plate toward the inside of the fin area through the ventilation hole. A cold draft cooler is disclosed.
（ハ）発明が解決しようとする課題
斯かる従来技術によると、フィン域内のみ空気流を通過
させるものと比較してＵベンド部分域でも熱交換を行う
点で、冷却運転時の効率が向上する旨記載されている。(c) Problems to be Solved by the Invention According to this prior art, the efficiency during cooling operation is improved in that heat exchange is performed also in the U-bend region, compared to a system in which airflow only passes through the fin region. It is stated that.
しかし、冷媒パイプのＵベンド部分域の下流側にのみ該
Ｕペンド部分域の冷気通風路を閉鎖する仕切壁を設けて
いるため、左右端板間に進入する風量が少な（なり、冷
却運転時におけるフィン域内での熱交換効率の点から考
えると思っｔこより効率の向上を期待することはできな
い。However, because a partition wall is provided only on the downstream side of the U-bend region of the refrigerant pipe to close the cold air ventilation path in the U-bend region, the amount of air that enters between the left and right end plates is small. Considering the heat exchange efficiency within the fin region, no improvement in efficiency can be expected.
しかも、比較的湿気の多い送風空気流の一部が、フィン
域を通風する前にＵベンド部分域を通風するため、Ｕベ
ンｒ部分域の着霜量が多くなる問題点があった。In addition, since a portion of the relatively humid blown air flow passes through the U-bend region before ventilating the fin region, there is a problem in that the amount of frost buildup in the U-bend r region increases.
更に、端板に通風孔を形成したり、冷気通風路を閉鎖す
る専用の仕切壁器を設けるため、構造も複雑になる問題
点があった。Furthermore, since ventilation holes are formed in the end plates and a special partition wall device is provided to close the cold air ventilation path, the structure becomes complicated.
本発明は、この様な従来技術の諸々の問題点を解消し、
吸い込み空気と蒸発器との熱交換効率の向上を図り、冷
却性能を向上させる強制循環式冷却貯蔵庫を提供するも
のである。The present invention solves various problems of the prior art,
The present invention provides a forced circulation type cooling storage that improves the heat exchange efficiency between the intake air and the evaporator, and improves the cooling performance.
（ニ）課題を解決するための手段
本発明は、上記課題を解決するために、貯蔵庫内の上部
に、吸い込み口及び吹き出し口を形成した冷却カバーに
て覆われた蒸発器及び冷気循環ファンを配設て成る冷却
貯蔵庫において、複数本の熱交換管及びこの熱交換管に
間隔を存して複数枚挿入された平板状のフィンとから成
り、前記熱交換管は前記フィンの長辺方向に複数本設け
られると共に、前記熱交換管が複数回蛇行曲げすること
により前記フィンを気流方向に複数列配設して構成した
独立フィン型蒸発器と、該蒸発器の最前列と最後列に位
置する前記熱交換管を前記フィンの外側で夫々支持する
受け部及び前記フィンの両側方の冷気通路を熱交換管の
曲げ部の上流側と下流側で閉塞する閉塞面を有し、前記
蒸発器を貯蔵庫天壁に取り付ける４枚の取り付け金具を
設けてなる強制循環式冷却貯蔵庫である。(d) Means for Solving the Problems In order to solve the above problems, the present invention provides an evaporator and a cold air circulation fan covered with a cooling cover having an inlet and an outlet in the upper part of the storage. The cooling storage consists of a plurality of heat exchange tubes and a plurality of flat fins inserted into the heat exchange tubes at intervals, and the heat exchange tubes extend in the longitudinal direction of the fins. an independent fin type evaporator configured by arranging a plurality of fins in a plurality of rows in the airflow direction by meandering and bending the heat exchange tube a plurality of times; The evaporator has a receiving portion that supports the heat exchange tubes on the outside of the fins, and a closing surface that closes the cold air passages on both sides of the fins on the upstream and downstream sides of the bent portion of the heat exchange tube. This is a forced circulation type cooling storage with four mounting fittings for attaching it to the top wall of the storage.
（ホ）作用
本発明は、蒸発器を貯蔵庫天壁に取り付ける４枚の取り
付け金具の作用によって、吸い込み空気をフィン域に流
入させた後、その空気流の一部をフィン域両側の熱交換
管の曲げ部に通風して熱交換することによって、フィン
域における熱交換効率の低下を防止することができる。(E) Function The present invention allows the suction air to flow into the fin area by the action of four fittings that attach the evaporator to the storage ceiling wall, and then transfers a part of the air flow to the heat exchange tubes on both sides of the fin area. By ventilating and exchanging heat through the bent portion of the fin, it is possible to prevent a decrease in heat exchange efficiency in the fin region.
しかも、湿気の多い吸い込み空気が、まずフィン域と熱
交換するため、熱交換管の曲げ部の着霜量を少なくする
ことができる。Moreover, since the humid suction air first exchanges heat with the fin region, the amount of frost formed on the bent portion of the heat exchange tube can be reduced.
（へ）実施例 いかに本発明の実施例を図面を参照して説明する。(f) Example Embodiments of the present invention will be described with reference to the drawings.
第２図は本発明の強制循環式冷却貯蔵庫の縦断側面図を
示しており、ｌは前面開口部に開閉扉２を備える断熱構
造の貯蔵庫本体であり、該貯蔵庫本体１は天壁に形成し
た開口部を閉塞して該天壁の一部を構成する着脱自在な
冷凍装置用取り付け架台３を備えている。この架台３の
上面には、冷凍装置を構成する電動圧縮機４、凝縮器５
及び凝縮器空冷用送風機６が載置されている。また、貯
蔵庫内の上部には、ドレンパンＤを収納し、前部に吸い
込み口１０を、後部に吹き出し口１１を形成した冷却カ
バー８にて覆われた天吊型冷却装置７及び冷気循環ファ
ン９を配設ている。このうち冷却装置７は前記架台３の
下面に着脱自在に収り付けられ、吸い込み口１０対向す
る冷気循環ファン９は、第６図に斜視図を示すように、
ドレンパンＤとともに冷却カバー８に着脱自在に取り付
けられている。FIG. 2 shows a longitudinal side view of the forced circulation type cooling storage of the present invention, where l is a storage main body with a heat insulating structure equipped with an opening/closing door 2 at the front opening, and the storage main body 1 is formed on the ceiling wall. A removable refrigeration equipment mounting frame 3 is provided, which closes the opening and constitutes a part of the ceiling wall. On the top surface of this frame 3, an electric compressor 4 and a condenser 5 that constitute the refrigeration system are mounted.
and a condenser air cooling blower 6. In addition, a drain pan D is housed in the upper part of the storage, and a ceiling-mounted cooling device 7 and a cold air circulation fan 9 are covered with a cooling cover 8 having an inlet 10 at the front and an outlet 11 at the rear. are arranged. Among these, the cooling device 7 is removably housed on the lower surface of the pedestal 3, and the cold air circulation fan 9 facing the suction port 10 is arranged as shown in a perspective view in FIG.
It is detachably attached to the cooling cover 8 together with the drain pan D.
而して、前記天吊型冷却装置７は、第１図の分解斜視図
、第３図の蒸発器の組立て途中の平面図、第４図及び第
５図の冷却装置の取り付け状態を示す正面図及び縦断側
面図に詳図するように、蒸発器１２、霜取りヒータ１３
及びいくつかの取り付け部材によって構成されている。The ceiling-mounted cooling device 7 is shown in an exploded perspective view in FIG. 1, a plan view of the evaporator in the middle of assembly in FIG. 3, and a front view showing the installed state of the cooling device in FIGS. 4 and 5. As shown in detail in the figure and longitudinal side view, the evaporator 12 and the defrosting heater 13
and several mounting members.
このうち蒸発器７は所謂周知の独立フィン型蒸発器であ
り、第３図に示す実施例では、３本の熱交換管１４．１
５．１６及びこの熱交換管１４．１５．１６に蛇行的げ
を行う分の間隔を複数個所に残して複数枚の平板状の矩
形フィン１７が間隔を存して挿入される。この場合、熱
交換管１４．１５．１６は、矩形フィン１７の長辺方向
に複数本設けられることになる。このうち熱交換管】４
の一端部を冷媒の人口とし、熱交換管１６の他端部を冷
媒の出口とし、この出口側にヘッダー１８を接続する。Of these, the evaporator 7 is a so-called independent fin type evaporator, and in the embodiment shown in FIG.
5.16 and the heat exchange tubes 14, 15, and 16, a plurality of flat rectangular fins 17 are inserted at intervals leaving intervals for meandering at a plurality of locations. In this case, a plurality of heat exchange tubes 14, 15, 16 are provided in the long side direction of the rectangular fins 17. Of these, heat exchange tube] 4
One end is used as a refrigerant port, the other end of the heat exchange tube 16 is used as a refrigerant outlet, and a header 18 is connected to this outlet side.
また、熱交換管１５と熱交換管１６の一端部はＵ字熱交
換管１９によって接続され、熱交換管１４と熱交換管１
５の他端部はＵ字熱交換管２０によって接続される。こ
れによって、熱交換管１４．１５．１６は人口から出口
まで連続することになる。その後、熱交換管１４．１５
．１６の曲げ部１４Ａ、１５Ａ、１６Ａを円弧状に曲げ
て熱交換管１４．１５．１６を蛇行状に成形して独立フ
ィン型蒸発器７の組立てを完成する。Further, one end of the heat exchange tube 15 and the heat exchange tube 16 are connected by a U-shaped heat exchange tube 19, and the heat exchange tube 14 and the heat exchange tube 1 are connected to each other by a U-shaped heat exchange tube 19.
The other end of 5 is connected by a U-shaped heat exchange tube 20. Thereby, the heat exchange tubes 14, 15, 16 are continuous from the port to the outlet. Then heat exchange tube 14.15
．． The heat exchange tubes 14, 15, and 16 are formed into a serpentine shape by bending the 16 bent portions 14A, 15A, and 16A into an arc shape to complete the assembly of the independent fin type evaporator 7.
なお、前記矩形フィン１７は各コーナ一部を斜めに切欠
されて切欠部１７Ａを形成している。Note that each corner of the rectangular fin 17 is partially cut out diagonally to form a cutout portion 17A.
次に、前記霜取りヒータ１３は、蛇行状に成形され、一
対のヒータ取り付け根２Ｉに取り付けられている。具体
的には、ヒータ１３の曲げ部２１Ｂ近傍の直線部分が、
ヒータ取り付け根２１の下側でかしめ結合されている。Next, the defrost heater 13 is formed into a meandering shape and is attached to a pair of heater attachment roots 2I. Specifically, the straight portion of the heater 13 near the bent portion 21B is
They are caulked together below the heater attachment root 21.
これによって、霜取りヒータ１３はヒータ取り付け根２
１にしっかりと固定される。また、両ヒータ取り付け板
２１の上側には、最下位の熱交換管１６の曲げ部１６Ａ
の基部に嵌合する複数の嵌合溝２２を形成し、この嵌合
溝２２は霜取りヒータ１３の各直線部分の間に位置して
形成されている。更に、両ヒータ取り付け板２１の両端
部には、外方を向いた取り付け面２１Ａを形成している
。As a result, the defrosting heater 13 is connected to the heater attachment base 2.
1 is firmly fixed. Further, on the upper side of both heater mounting plates 21, there is a bent portion 16A of the lowest heat exchange tube 16.
A plurality of fitting grooves 22 are formed to fit into the base of the defroster heater 13, and the fitting grooves 22 are formed between the respective linear portions of the defroster heater 13. Further, at both ends of both heater mounting plates 21, mounting surfaces 21A facing outward are formed.
次に、蒸発器１２及び霜取りヒータ１３を架台３の下面
に取り付けるための部材について説明する。実施例にお
いて、該取り付け部材は２枚ずつが同一形状の計４枚の
取り付け金具２３．２３．２４．２４によって構成され
ている。取り付け金具２３と取り付け金具２４は、第１
図に示すように横幅りとＭの長さが相違するのみで、Ｌ
＞Ｍの関係になっている。これら取り付け金具２３及び
取り付け金具２４の下端両側には、前記ヒータ取り付け
板２１の取り付け面２１Ａが取り付けられる水平の取り
付け面２３Ａ及び２４Ａを形成し、取り付け金具２３及
び取り付け金具２４の上端には、前記取り付け面２３Ａ
及び２４Ａと逆方向に折曲して、架台３の下面への取り
付け面２３Ｂ、２４Ｂを形成し、更に、取り付け金具２
３及び、取り付け金具２４の両側上部には側板を突設し
、最前列と最後列に位置する最上位の熱交換管１４を前
記矩形フィン１７の外側で支持する上受け部２３Ｇ、２
４Ｃ及び最前列と最後列に位置する中位の熱交換管１５
を前記矩形フィン１７の外側で支持する下受け部２３Ｄ
、２４Ｄを形成するとともに、最前列と最後列に位置す
る最上位の熱交換管１４を前記矩形フィン１７の外側で
挟持する挟持部２３Ｅ、２４Ｅを形成している。更にま
た、矩形フィン１７の両側方の冷気通路２７を熱交換管
１４．１５．１６の曲げ部＋４Ａ、１５Ａ、１６Ａの上
流側と下流側で閉塞する閉塞面２３Ｆ、２４Ｆを有して
いる。Next, members for attaching the evaporator 12 and the defrost heater 13 to the lower surface of the pedestal 3 will be described. In the embodiment, the mounting member is constituted by a total of four mounting fittings 23, 23, 24, and 24, two of which have the same shape. The mounting bracket 23 and the mounting bracket 24 are
As shown in the figure, the only difference is the width and the length of M.
>The relationship is M. Horizontal mounting surfaces 23A and 24A to which the mounting surface 21A of the heater mounting plate 21 is attached are formed on both sides of the lower ends of the mounting brackets 23 and the mounting brackets 24, and the upper ends of the mounting brackets 23 and the mounting brackets 24 are formed with the Mounting surface 23A
and 24A to form mounting surfaces 23B and 24B on the lower surface of the pedestal 3.
3, and upper receiving parts 23G, 2 having side plates protruding from both upper sides of the mounting fittings 24 and supporting the uppermost heat exchange tubes 14 located in the front and rear rows on the outside of the rectangular fins 17;
4C and middle heat exchange tubes 15 located in the front and rear rows
a lower support portion 23D that supports the outside of the rectangular fin 17;
, 24D, and sandwiching portions 23E and 24E that sandwich the uppermost heat exchange tubes 14 located in the front and rear rows on the outside of the rectangular fins 17. Furthermore, the rectangular fins 17 have closing surfaces 23F and 24F that close the cold air passages 27 on both sides at the upstream and downstream sides of the bent portions +4A, 15A, and 16A of the heat exchange tubes 14, 15, and 16, respectively.
以上の構成において、いかに天吊型冷却装置７の組立て
及び取り付け構造について説明する。工場において一般
的に採用されている組立て及び取り付け方法は、架台３
の下面を上向きにし、この上に１枚の取り付け金具２３
の取り付け面２３Ｇ及び取り付け金具２４の取り付け面
２４Ｃをネジ２５によって固定する０次に、蒸発器１２
を取り付け金具２３．２４に支持させた後、他の１枚の
取り付け金具２３の取り付け面２３Ｃ及び取り付け金具
２４の取り付け面２４Ｃをネジ２５によって架台３の下
面に固定する。これにより、最前列と最後列に位置する
中位の熱交換管１５は、取り付け金具２３．２４の下受
け部２３Ｄ、２４Ｄで支持される形となる。この後、取
り付け金具２３の取り付け面２３Ａ及び取り付け金具２
４の取り付け面２４Ａにヒータ取り付け板２１の取り付
け面２１Ａをネジ２６によって固定する。これにより、
ヒータ取り付け板２１の上部に形成した嵌合溝２２は最
下位の熱交換管１６の曲げ部１６Ａの基部に嵌合する。In the above configuration, how to assemble and attach the ceiling-mounted cooling device 7 will be explained. The assembly and installation method commonly used in factories is
with the bottom side facing upward, and place one mounting bracket 23 on top of it.
The mounting surface 23G of the evaporator 12 and the mounting surface 24C of the mounting bracket 24 are fixed with screws 25.
are supported by the mounting brackets 23 and 24, and then the mounting surface 23C of the other mounting bracket 23 and the mounting surface 24C of the mounting bracket 24 are fixed to the lower surface of the pedestal 3 with screws 25. As a result, the middle heat exchange tubes 15 located in the front row and the rear row are supported by the lower receiving parts 23D and 24D of the mounting fittings 23.24. After this, the mounting surface 23A of the mounting bracket 23 and the mounting bracket 2
The mounting surface 21A of the heater mounting plate 21 is fixed to the mounting surface 24A of the heater mounting plate 21 with screws 26. This results in
The fitting groove 22 formed in the upper part of the heater mounting plate 21 fits into the base of the bent portion 16A of the lowest heat exchange tube 16.
同時に、霜取りヒータＩ３は相隣る矩形フィン１７の切
欠部１７Ａ間に形成される空間部に位置付けられ、矩形
フィン１７と接触若しくは近接状態に配置されることに
なる。これによって、蒸発器１２の霜取りを効率的に行
うことができる。At the same time, the defrosting heater I3 is positioned in the space formed between the notches 17A of adjacent rectangular fins 17, and is placed in contact with or in close proximity to the rectangular fins 17. Thereby, the evaporator 12 can be efficiently defrosted.
なお、２枚の取り付け金具２３と２枚の取り付け金具２
４は前後共通で使用することができる。In addition, two mounting brackets 23 and two mounting brackets 2
4 can be used both front and rear.
これは、取り付け金具２３に２つの取付面２３Ａがあり
、取り付け金具２４に２つの取付面２４Ａがあるからで
ある。This is because the mounting bracket 23 has two mounting surfaces 23A, and the mounting bracket 24 has two mounting surfaces 24A.
以上のようにして、天吊型冷却装置７の組立て及び取り
付けを完了する。この後、天吊型冷却装置７を収り付け
た架台３を正規の状態にした上で架台３の上面に電動圧
縮機４、凝縮器５及び凝縮器空冷用送風機６を取り付け
る。この間の荷重は４枚の取り付け金具２３．２４によ
って受けられることになる。As described above, the assembly and installation of the ceiling-mounted cooling device 7 is completed. Thereafter, the pedestal 3 on which the ceiling-mounted cooling device 7 is placed is brought into a normal state, and the electric compressor 4, condenser 5, and condenser air-cooling blower 6 are attached to the top surface of the pedestal 3. The load during this time will be borne by the four fittings 23 and 24.
この様にして、架台３の上面及び下面に冷凍装置の取り
付けを終了した後、貯蔵庫本体ｌの天壁に形成した開口
部に架台３を取り付けて、天吊型冷却装置７の庫内への
組立て及び取り付けを完了する。これによって、最前列
と最後列に位置する最上位の熱交換管１４は、取り付け
金具２３．２４の上受け部２３Ｃ１２４Ｇで支持される
ことになり、蒸発器１２の全荷重を４枚の取り付け金具
２３．２４で支持する。After completing the installation of the refrigeration equipment on the upper and lower surfaces of the mount 3 in this way, the mount 3 is attached to the opening formed in the top wall of the storage main body l, and the ceiling-mounted cooling equipment 7 is installed inside the storage. Complete assembly and installation. As a result, the uppermost heat exchange tubes 14 located in the front row and the rear row are supported by the upper receiving parts 23C124G of the mounting brackets 23.24, and the entire load of the evaporator 12 is transferred to the four mounting brackets. Supported by 23.24.
而して、蒸発器１２の矩形フィン１７は気流方向に平行
し、熱交換管１４．１５．１６は気流方向に複数列配設
されることになり、相隣る列と列の矩形フィン１７間に
は、矩形フィン１７の両側方の冷気通路２７に連絡する
隙間２８が形成されることになる。Thus, the rectangular fins 17 of the evaporator 12 are parallel to the airflow direction, and the heat exchange tubes 14, 15, 16 are arranged in multiple rows in the airflow direction, and the rectangular fins 17 in adjacent rows are arranged in parallel. A gap 28 is formed therebetween that communicates with the cold air passages 27 on both sides of the rectangular fin 17.
次に、以上の構成に基ずいた空気の流れを第７図に基ず
き説明する。庫内貯蔵品を冷却し、吸い込み口１０から
吸い込まれた多湿空気は、まず、前側の取り付け金具２
３．２４の閉塞面２３Ｆ、２４Ｆの作用によって、フィ
ン域に流入してフィン域で熱交換した後、その空気流の
一部が、隙間２８を通ってフィン域両側の冷気通路２７
に流入し、熱交換管１４．１５．１６の曲げ部１４Ａ、
１４Ｂ、１４Ｇと熱交換する。これによって、フィン域
における熱交換効率の低下を防止することができるとと
もに、吸い込み口１０から吸い込まれた多湿空気が、フ
ィン域における熱交換前に、直接曲げ部１４Ａ、１４Ｂ
、１４Ｃ域に通風することがないため、該曲げ部１４Ａ
、１４Ｂ、１４Ｃ域への着霜を少なくすることができる
。そして曲げ部！４Ａ、１４Ｂ、１４ｃ域で熱交換した
空気は、後側の取り付け金具２３．２４の閉塞面２３Ｆ
、２４Ｆの作用によって、そのまま吹き出し口１１に向
かうことなく隙間２８からフィン域に戻ってフィン域で
熱交換した後、吹き出し口１１を通って、庫内に循環さ
れる。Next, the flow of air based on the above configuration will be explained based on FIG. 7. The humid air that cools the stored items in the refrigerator and is sucked in from the suction port 10 first passes through the front mounting bracket 2.
3.24, after flowing into the fin area and exchanging heat in the fin area, a part of the air flow passes through the gap 28 and enters the cold air passages 27 on both sides of the fin area.
into the bend 14A of the heat exchange tube 14.15.16,
Exchange heat with 14B and 14G. This makes it possible to prevent a decrease in heat exchange efficiency in the fin region, and also allows the humid air sucked in from the suction port 10 to be directly transferred to the bent portions 14A, 14B before heat exchange in the fin region.
, 14C, there is no ventilation in the bent portion 14A.
, 14B, and 14C areas can be reduced. And the bending part! The air that has undergone heat exchange in areas 4A, 14B, and 14c is transferred to the closed surface 23F of the rear mounting bracket 23.24.
, 24F, the air returns to the fin area from the gap 28 without directly going to the air outlet 11, exchanges heat in the fin area, and then circulates through the air outlet 11 into the refrigerator.
（ト）発明の効果
本発明は以上のように、独立フィン型蒸発器を貯蔵庫の
天壁に取り付ける取り付け金具を利用し該取り付け金具
に吸い込み空気が、直接熱交換管の曲げ部に当らないよ
うにする閉塞面を形成しているため、端板に通風孔を形
成したり、冷気通風路を閉鎖する専用の仕切壁器を設け
る必要がなく構造の簡素化を図ることができ、しかも、
吸い込み空気をフィン域に流入させた後、その空気流の
一部をフィン域両側の熱交換管の曲げ部に通風して熱交
換するため、フィン域における熱交換効率の低下を防止
することができるとともに、多湿の吸い込み空気が、ま
ずフィン域と熱交換することから、熱交換管の曲げ部の
着霜量を少なくすることができ、冷却性能が向上する効
果を奏するものである。(G) Effects of the Invention As described above, the present invention utilizes a mounting bracket for attaching an independent fin type evaporator to the ceiling wall of a storage room so that the air sucked into the mounting bracket does not directly hit the bent portion of the heat exchange tube. Because it forms a closed surface, it is not necessary to form ventilation holes in the end plate or to provide a special partition wall device to close the cold air ventilation path, and the structure can be simplified.
After the suction air flows into the fin area, a portion of the airflow is passed through the bent portions of the heat exchange tubes on both sides of the fin area for heat exchange, which prevents a decrease in heat exchange efficiency in the fin area. In addition, since the humid suction air first exchanges heat with the fin area, the amount of frost formed on the bent portion of the heat exchange tube can be reduced, and the cooling performance is improved.
第１図乃至第７図はいずれも本発明の強制循環式冷却貯
蔵庫に係わり、第１図は天吊型冷却装置の分解斜視図、
第２図は強制循環式冷却貯蔵庫の縦断側面図、第３図は
蒸発器の組立て途中の平面図、第４図は冷却装置の取り
付け状態を示す正面図、第５図は冷却装置の取り付け状
態を示す縦断側面図、第６図は冷気循環ファンを取り付
けた冷却カバーの斜視図、第７図は空気の流れを説明す
る平面図である。
３・架台、７・天吊型冷却装置、８−・冷却カバ９−冷
気循環ファン、ｌＯ・−吸い込み口、１１−吹き比し口
、１２−蒸発器、１４，１５゜１６・・熱交換管、１４
Ａ、１５Ａ、１６Ａ・・曲げ部、１７ フィン、２３．
２４・−取り付け金具、２３Ｇ、２４Ｇ 受け部、２
３Ｆ、２４Ｆ・・・閉塞面。
第
２
図1 to 7 all relate to the forced circulation cooling storage of the present invention, and FIG. 1 is an exploded perspective view of a ceiling-mounted cooling device;
Figure 2 is a vertical side view of the forced circulation type cooling storage, Figure 3 is a plan view of the evaporator being assembled, Figure 4 is a front view showing how the cooling device is installed, and Figure 5 is how the cooling device is installed. FIG. 6 is a perspective view of a cooling cover to which a cold air circulation fan is attached, and FIG. 7 is a plan view illustrating air flow. 3. Frame, 7. Ceiling cooling device, 8. Cooling cover 9. Cold air circulation fan, lO.- Suction port, 11. Blow ratio port, 12. Evaporator, 14, 15° 16.. Heat exchanger. tube, 14
A, 15A, 16A...Bending portion, 17 Fin, 23.
24・-Mounting bracket, 23G, 24G receiving part, 2
3F, 24F...Closed surface. Figure 2
Claims (1)
成した冷却カバーにて覆われた蒸発器及び冷気循環ファ
ンを配設て成る冷却貯蔵庫において、複数本の熱交換管
及びこの熱交換管に間隔を存して複数枚挿入された平板
状のフィンとから成り、前記熱交換管は前記フィンの長
辺方向に複数本設けられると共に、前記熱交換管が複数
回蛇行曲げすることにより前記フィンを気流方向に複数
列配設して構成した独立フィン型蒸発器と、該蒸発器の
最前列と最後列に位置する前記熱交換管を前記フィンの
外側で夫々支持する受け部及び前記フィンの両側方の冷
気通路を熱交換管の曲げ部の上流側と下流側で閉塞する
閉塞面を有し、前記蒸発器を貯蔵庫天壁に取り付ける４
枚の取り付け金具を設けたことを特徴とする強制循環式
冷却貯蔵庫。1. In a cooling storage where an evaporator and a cold air circulation fan covered by a cooling cover with an inlet and an air outlet are arranged in the upper part of the storage, a plurality of heat exchange tubes and a The heat exchange tube is composed of a plurality of flat fins inserted at intervals, and the heat exchange tube is provided in a plurality in the long side direction of the fin, and the heat exchange tube is meanderingly bent multiple times to form the fin. an independent fin type evaporator configured by arranging a plurality of rows in the air flow direction; a receiving part that supports the heat exchange tubes located at the front and rear rows of the evaporator on the outside of the fins; 4, which has closing surfaces that close the cold air passages on both sides on the upstream and downstream sides of the bent portion of the heat exchange tube, and attaches the evaporator to the storage top wall;
A forced circulation type cooling storage chamber characterized by having two mounting fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2237490A JPH0781774B2 (en) | 1990-01-31 | 1990-01-31 | Forced circulation cooling storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2237490A JPH0781774B2 (en) | 1990-01-31 | 1990-01-31 | Forced circulation cooling storage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03225172A true JPH03225172A (en) | 1991-10-04 |
| JPH0781774B2 JPH0781774B2 (en) | 1995-09-06 |
Family
ID=12080866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2237490A Expired - Fee Related JPH0781774B2 (en) | 1990-01-31 | 1990-01-31 | Forced circulation cooling storage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0781774B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017516051A (en) * | 2014-04-04 | 2017-06-15 | ヴァレオ システム テルミク | Heat exchanger for motor vehicles |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708340B (en) * | 2018-09-30 | 2021-01-05 | 合肥海尔电冰箱有限公司 | Evaporator using method |
-
1990
- 1990-01-31 JP JP2237490A patent/JPH0781774B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017516051A (en) * | 2014-04-04 | 2017-06-15 | ヴァレオ システム テルミク | Heat exchanger for motor vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0781774B2 (en) | 1995-09-06 |
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