JPH1114191A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPH1114191A JPH1114191A JP16398297A JP16398297A JPH1114191A JP H1114191 A JPH1114191 A JP H1114191A JP 16398297 A JP16398297 A JP 16398297A JP 16398297 A JP16398297 A JP 16398297A JP H1114191 A JPH1114191 A JP H1114191A
- Authority
- JP
- Japan
- Prior art keywords
- heat transfer
- air
- fins
- heat exchanger
- transfer tubes
- 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.)
- Pending
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、冷蔵庫や冷凍庫等
に用いられるフィンチュ−ブ型の熱交換器に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fin tube type heat exchanger used for a refrigerator or a freezer.
【0002】[0002]
【従来の技術】近年、冷蔵庫は大型化され庫内の温度を
冷却し維持するために、より大きな冷却能力が熱交換器
に要求されている。しかし、冷凍冷蔵庫のように空気を
氷点下の温度に冷却する場合、熱交換器には着霜現象が
生じ、その霜が風路を閉塞させ冷却能力を極端に低下さ
せる。そのために、着霜しても風路が確保でき長時間に
渡って冷却能力を維持できる熱交換器が求められてい
る。2. Description of the Related Art In recent years, refrigerators have been increased in size, and in order to cool and maintain the temperature in the refrigerator, a greater cooling capacity is required for the heat exchanger. However, when air is cooled to a temperature below the freezing point as in a refrigerator-freezer, a frosting phenomenon occurs in the heat exchanger, and the frost blocks the air passage and extremely reduces the cooling capacity. For this reason, there is a demand for a heat exchanger capable of securing an air passage even if frost is formed and maintaining a cooling capacity for a long time.
【0003】以下図面を参照しながら特開昭59−10
428号公報に示される従来の熱交換器について説明を
行う。[0003] Referring to the accompanying drawings,
A conventional heat exchanger disclosed in Japanese Patent No. 428 will be described.
【0004】図3は従来の熱交換器の斜視図、図4は側
面の要部断面図、図5は図4の着霜時のA−A断面図で
ある。FIG. 3 is a perspective view of a conventional heat exchanger, FIG. 4 is a cross-sectional view of a main part of a side surface, and FIG. 5 is a cross-sectional view of FIG.
【0005】図3,図4,図5において、1は熱交換
器,2は伝熱管,3はフィン,4は霜,5は空気の流れ
方向,6は冷媒である。熱交換器1は内部に冷媒6が流
動する碁盤目状に配列された複数列の伝熱管2と伝熱管
2に挿入され、その間を空気5が流動する複数枚の矩形
状フィン3とより構成され、フィン3はフィン3の前縁
が空気5の流れ方向に対し垂直に、且つ、列毎に分断さ
れて配設されている。In FIGS. 3, 4 and 5, 1 is a heat exchanger, 2 is a heat transfer tube, 3 is a fin, 4 is frost, 5 is a flow direction of air, and 6 is a refrigerant. The heat exchanger 1 is composed of a plurality of rows of heat transfer tubes 2 arranged in a grid pattern in which a coolant 6 flows, and a plurality of rectangular fins 3 inserted into the heat transfer tubes 2 and through which air 5 flows. The fins 3 are arranged such that the leading edge of the fins 3 is perpendicular to the flow direction of the air 5 and is divided for each row.
【0006】以上のように構成された従来の熱交換器1
の動作について説明する。ファン(図示せず)の駆動に
より流入してきた空気5は、伝熱管2の内部を流動する
冷媒6と伝熱管2とフィン3を通じて熱交換が行われ
る。そして、冷媒6の蒸発温度が0℃以下になると、空
気5中の水蒸気が霜4として付着し霜層を形成する。そ
して、この霜4による通過風量の減少と断熱作用により
冷却能力が著しく減少していくために除霜が必要であ
る。そこで、フィン3を列毎に分断し列毎に最適なフィ
ンピッチを設定することで通過風量の減少を抑制し冷却
能力の減少を抑えていた。[0006] The conventional heat exchanger 1 configured as described above.
Will be described. The air 5 that has flowed in by the driving of the fan (not shown) exchanges heat through the refrigerant 6 flowing inside the heat transfer tube 2, the heat transfer tube 2, and the fins 3. When the evaporation temperature of the refrigerant 6 becomes 0 ° C. or lower, the water vapor in the air 5 adheres as frost 4 and forms a frost layer. Then, since the cooling capacity is remarkably reduced due to the reduction of the passing air volume and the heat insulation effect due to the frost 4, defrosting is necessary. Therefore, the fins 3 are divided for each row, and the optimal fin pitch is set for each row, thereby suppressing a decrease in the amount of passing air and a decrease in the cooling capacity.
【0007】[0007]
【発明が解決しようとする課題】しかしながら、従来の
熱交換器1は上記のように構成されているので、霜4の
多くはフィン3の前縁部全体に着霜してしまい、フィン
ピッチの設定だけでは十分な通過風量の確保と冷却能力
の維持ができないという課題を有していた。However, since the conventional heat exchanger 1 is configured as described above, most of the frost 4 is frosted on the entire front edge of the fin 3 and the fin pitch is reduced. There was a problem that it was not possible to secure a sufficient amount of passing air and maintain the cooling capacity only by setting.
【0008】本発明は上記課題に鑑み、着霜しても冷却
能力を維持できる熱交換器を提供するものである。The present invention has been made in view of the above problems, and provides a heat exchanger capable of maintaining a cooling capacity even when frost is formed.
【0009】[0009]
【課題を解決するための手段】本発明の熱交換器は上記
課題を解決するために、内部を冷媒が流動する複数列の
伝熱管と、前記伝熱管に挿入されその間を空気が流動す
る複数枚の矩形状フィンより成り、前記伝熱管を前記フ
ィンの略対角線上に配設すると共に、前記フィンを空気
の流れに対し、前記フィンの前縁が斜めになるように配
設したものである。In order to solve the above-mentioned problems, a heat exchanger according to the present invention includes a plurality of rows of heat transfer tubes through which a refrigerant flows, and a plurality of heat transfer tubes inserted into the heat transfer tubes and through which air flows. The heat transfer tubes are disposed substantially diagonally to the fins, and the fins are disposed such that the front edge of the fins is oblique to the flow of air. .
【0010】また、本発明の熱交換器は上記課題を解決
するために、内部を冷媒が流動する複数列の伝熱管と、
前記伝熱管に挿入されその間を空気が流動する複数枚の
矩形状フィンより成り、前記フィンを空気の流れに対
し、前記フィンの前縁が斜めになるように配設すると共
に、前記伝熱管を前記フィンの空気流れ方向に対して垂
直方向側の両端部空間が反対側両端部空間に比べ広くな
るように配設したものである。[0010] In order to solve the above-mentioned problems, the heat exchanger of the present invention includes a plurality of rows of heat transfer tubes through which a refrigerant flows,
It consists of a plurality of rectangular fins that are inserted into the heat transfer tube and through which air flows, and the fins are arranged so that the front edge of the fin is oblique to the flow of air, and the heat transfer tube is The fins are arranged such that the spaces at both ends in the direction perpendicular to the air flow direction are wider than the spaces at the opposite ends.
【0011】この発明によれば、着霜しても通過風量が
確保でき長時間に渡って冷却能力を維持することができ
る。According to the present invention, even when frost is formed, the amount of passing air can be ensured, and the cooling capacity can be maintained for a long time.
【0012】[0012]
【発明の実施の形態】本発明の請求項1に記載の発明
は、内部を冷媒が流動する複数列の伝熱管と、前記伝熱
管に挿入されその間を空気が流動する複数枚の矩形状フ
ィンより成り、前記伝熱管を前記フィンの略対角線上に
配設すると共に、前記フィンを空気の流れに対し、前記
フィンの前縁が斜めになるように配設したことを特徴と
する熱交換器としたものであるので、段方向のフィンへ
の着霜分布を不均一にできると共に、伝熱管と伝熱管と
の距離を長くとることができるので、着霜時の風路の確
保ができ通過風量の減少を抑えるという作用を有する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a plurality of rows of heat transfer tubes through which a refrigerant flows, and a plurality of rectangular fins inserted into the heat transfer tubes and through which air flows. A heat exchanger, wherein the heat transfer tubes are disposed substantially diagonally to the fins, and the fins are disposed such that the front edge of the fins is oblique to the flow of air. The distribution of frost on the fins in the step direction can be made non-uniform, and the distance between the heat transfer tubes can be increased. It has the effect of suppressing a decrease in air volume.
【0013】請求項2に記載の発明は、内部を冷媒が流
動する複数列の伝熱管と、前記伝熱管に挿入されその間
を空気が流動する複数枚の矩形状フィンより成り、前記
フィンを空気の流れに対し、前記フィンの前縁が斜めに
なるように配設すると共に、前記伝熱管を前記フィンの
空気流れ方向に対して垂直方向側の両端部空間が反対側
両端部空間に比べ広くなるように配設したことを特徴と
する熱交換器としたものであるので、段方向のフィンへ
の着霜分布を不均一にできると共に、フィン端部と伝熱
管との距離を長くとることができるので、着霜時の風路
の確保ができ通過風量の減少を抑えるという作用を有す
る。According to a second aspect of the present invention, there are provided a plurality of rows of heat transfer tubes through which a refrigerant flows, and a plurality of rectangular fins inserted into the heat transfer tubes and flowing air therebetween. With respect to the flow of the fin, the front edge of the fin is arranged so as to be oblique, and the heat transfer tube is wider at both end spaces on the side perpendicular to the air flow direction of the fin than at the opposite end space. The heat exchanger is characterized by being arranged so that the distribution of frost on the fins in the stepwise direction can be made non-uniform, and the distance between the end of the fins and the heat transfer tube can be increased. Therefore, the air passage at the time of frost formation can be secured, and the reduction of the passing air volume is suppressed.
【0014】[0014]
【実施例】以下、本発明の実施例について、図1から図
3を用いて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
【0015】(実施例1)図1は本発明の実施例1の熱
交換器の側面の要部断面図、図2は同実施例の着霜時の
図1のB−B断面図である。(Embodiment 1) FIG. 1 is a cross-sectional view of a main part of a side surface of a heat exchanger according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view taken along the line BB of FIG. .
【0016】図1,図2において、11は熱交換器、1
2a,12bは伝熱管、13はフィン、14は霜、15
は空気の流れ方向、16は冷媒である。熱交換器11は
内部に冷媒16が流動する複数列の伝熱管12a,12
bと伝熱管12a,12bに挿入され、その間を空気1
5が流動する複数枚の矩形状フィン13とより構成さ
れ、フィン13はフィン13の前縁が空気15の流れ方
向に対し斜めに、且つ、列毎に分断されて配設される。
また、伝熱管12aはフィン13の前縁からの距離を短
く、伝熱管12bはフィン13の前縁からの距離を長く
なるようにフィン13の対角線上近傍に配設してある。1 and 2, reference numeral 11 denotes a heat exchanger, 1
2a and 12b are heat transfer tubes, 13 is a fin, 14 is frost, 15
Is a flow direction of air, and 16 is a refrigerant. The heat exchanger 11 includes a plurality of rows of heat transfer tubes 12a and 12a through which a refrigerant 16 flows.
b and the heat transfer tubes 12a and 12b, and the air 1
The fins 13 are arranged such that the leading edge of the fins 13 is oblique to the flow direction of the air 15 and is divided for each row.
The heat transfer tube 12a is disposed near the diagonal of the fin 13 so that the distance from the front edge of the fin 13 is short, and the heat transfer tube 12b is long in the distance from the front edge of the fin 13.
【0017】以上のように構成された本発明の実施例1
の熱交換器11の動作について説明する。Embodiment 1 of the present invention configured as described above
The operation of the heat exchanger 11 will be described.
【0018】ファン(図示せず)の駆動により流入して
きた空気15は、伝熱管12a,12bの内部を流動す
る冷媒16と伝熱管12a,12bとフィン13を通じ
て熱交換が行われる。そして、冷媒16の蒸発温度が0
℃以下になると、空気15中の水蒸気が霜14として付
着し霜層を形成する。The air 15 that has flowed in by the drive of the fan (not shown) exchanges heat through the refrigerant 16 flowing inside the heat transfer tubes 12a and 12b, the heat transfer tubes 12a and 12b, and the fins 13. And the evaporation temperature of the refrigerant 16 is 0
When the temperature falls below ℃, the water vapor in the air 15 adheres as frost 14 to form a frost layer.
【0019】その際、フィン13を空気15の流れに対
して斜めに配設してあるので空気15に接するフィン1
3の前縁が長くとれ付着する霜14の厚さを薄くするこ
とができると共に、伝熱管12a,12bをフィン13
の対角線上近傍に配設することで、伝熱管12aと伝熱
管12bとの距離が広くとれるので、着霜しても急激な
通過風量の低下を抑えることができ、冷却能力の維持を
することができる。At this time, since the fins 13 are arranged obliquely to the flow of the air 15, the fins 1 in contact with the air 15
3 can be thinned and the thickness of the frost 14 adhered can be reduced, and the heat transfer tubes 12a and 12b can be
Since the distance between the heat transfer tube 12a and the heat transfer tube 12b can be increased by arranging the heat transfer tube near the diagonal line, it is possible to suppress a sharp decrease in the amount of air passing through even if frost is formed, and to maintain the cooling capacity. Can be.
【0020】(実施例2)図1は本発明の実施例2の熱
交換器の側面の要部断面図、図2は同実施例の着霜時の
B−B断面図である。(Embodiment 2) FIG. 1 is a cross-sectional view of a main part of a side surface of a heat exchanger according to Embodiment 2 of the present invention, and FIG. 2 is a BB cross-sectional view of the embodiment when frost is formed.
【0021】図1,図2において、11は熱交換器、1
2a,12bは伝熱管、13はフィン、14は霜、15
は空気の流れ方向、16は冷媒である。熱交換器11は
内部に冷媒16が流動する複数列の伝熱管12a,12
bと伝熱管12a、12bに挿入され、その間を空気1
5が流動する複数枚の矩形状フィン13とより構成さ
れ、フィン13は列毎に分断されて配設される。また、
フィン13を空気15の流れに対し、フィン13の前縁
が斜めになるように配設すると共に、伝熱管12a,1
2bをフィン13の空気15流れ方向に対して垂直方向
側の端部17a,17bの空間が反対側両端部空間に比
べ広くしている。1 and 2, reference numeral 11 denotes a heat exchanger, 1
2a and 12b are heat transfer tubes, 13 is a fin, 14 is frost, 15
Is a flow direction of air, and 16 is a refrigerant. The heat exchanger 11 includes a plurality of rows of heat transfer tubes 12a and 12a through which a refrigerant 16 flows.
b and the heat transfer tubes 12a and 12b.
5 comprises a plurality of flowing rectangular fins 13, and the fins 13 are divided and arranged for each row. Also,
The fins 13 are arranged so that the front edge of the fins 13 is oblique to the flow of the air 15 and the heat transfer tubes 12a, 1
The space of the ends 17a, 17b of the fin 13 on the side perpendicular to the flow direction of the air 15 of the fin 13 is wider than the spaces on the opposite ends.
【0022】以上のように構成された本発明の実施例2
の熱交換器11の動作について説明する。Embodiment 2 of the present invention configured as described above
The operation of the heat exchanger 11 will be described.
【0023】ファン(図示せず)の駆動により流入して
きた空気15は、伝熱管12a,12bの内部を流動す
る冷媒16と伝熱管12a,12bとフィン13を通じ
て熱交換が行われる。そして、冷媒16の蒸発温度が0
℃以下になると、空気15中の水蒸気が霜14として付
着し霜層を形成する。The air 15 that has flowed in by the drive of the fan (not shown) exchanges heat through the refrigerant 16 flowing inside the heat transfer tubes 12a and 12b, the heat transfer tubes 12a and 12b, and the fins 13. And the evaporation temperature of the refrigerant 16 is 0
When the temperature falls below ℃, the water vapor in the air 15 adheres as frost 14 to form a frost layer.
【0024】その際、フィン13を空気15の流れに対
して斜めに配設してあるので空気15に接するフィン1
3の前縁が長くとれ付着する霜14の厚さを薄くするこ
とができると共に、伝熱管12a,12bをフィン13
の前縁部側と後縁部側に分けて配設することで、伝熱管
12aと伝熱管12bとの距離が広くとれ、且つ、空気
15の流れ方向に対して垂直方向側になるフィン13の
端部17a,17bが広くとれるので、着霜しても風路
が確保できるので急激な通過風量の低下を抑えることが
でき、冷却能力の維持をすることができる。At this time, since the fins 13 are arranged obliquely to the flow of the air 15, the fins 1 contacting the air 15
3 can be thinned and the thickness of the frost 14 adhered can be reduced, and the heat transfer tubes 12a and 12b can be
Are arranged separately on the front edge side and the rear edge side, so that the distance between the heat transfer tubes 12a and the heat transfer tubes 12b can be widened and the fins 13 on the side perpendicular to the flow direction of the air 15 can be provided. Since the end portions 17a and 17b can be widened, an air path can be secured even if frost is formed, so that a sharp decrease in the amount of passing air can be suppressed, and the cooling capacity can be maintained.
【0025】[0025]
【発明の効果】以上のように本発明の熱交換器によれ
ば、内部を冷媒が流動する複数列の伝熱管と、前記伝熱
管に挿入されその間を空気が流動する複数枚の矩形状フ
ィンより成り、前記伝熱管を前記フィンの略対角線上に
配設すると共に、前記フィンを空気の流れに対し、前記
フィンの前縁が斜めになるように配設したことを特徴と
する熱交換器としたものであるので、着霜しても風路を
確保することができるので急激な通過風量の低下を抑え
ることができ、冷却能力の維持をすることができるとい
う効果が得られる。As described above, according to the heat exchanger of the present invention, a plurality of rows of heat transfer tubes through which a refrigerant flows, and a plurality of rectangular fins inserted into the heat transfer tubes and through which air flows. A heat exchanger, wherein the heat transfer tubes are disposed substantially diagonally to the fins, and the fins are disposed such that the front edge of the fins is oblique to the flow of air. Therefore, an air path can be secured even if frost is formed, so that an abrupt decrease in the passing air volume can be suppressed, and an effect that the cooling capacity can be maintained can be obtained.
【0026】また、本発明の熱交換器は、内部を冷媒が
流動する複数列の伝熱管と、前記伝熱管に挿入されその
間を空気が流動する複数枚の矩形状フィンより成り、前
記フィンを空気の流れに対し、前記フィンの前縁が斜め
になるように配設すると共に、前記伝熱管を前記フィン
の空気流れ方向に対して垂直方向側の両端部空間が反対
側両端部空間に比べ広くなるように配設したことを特徴
とする熱交換器としたものであるので、霜層厚さを薄く
できると共に、伝熱管近傍の通風抵抗を低減することが
でき、更にフィン両端部側の風路を確保することで、風
量の確保ができ、冷却能力の急激な低下を防ぐことがで
きるという効果が得られる。The heat exchanger of the present invention comprises a plurality of rows of heat transfer tubes through which a refrigerant flows, and a plurality of rectangular fins inserted into the heat transfer tubes and through which air flows. The fins are arranged so that the front edge of the fins is oblique to the air flow, and the heat transfer tubes are arranged such that both end spaces on the side perpendicular to the air flow direction of the fins are opposite end space on the opposite side. Since it is a heat exchanger characterized by being arranged so as to be widened, the frost layer thickness can be reduced, the ventilation resistance near the heat transfer tube can be reduced, and furthermore, the fin both ends side By securing the air path, the air volume can be secured, and an effect that a rapid decrease in cooling capacity can be prevented can be obtained.
【図1】本発明の実施例1,実施例2の熱交換器の側面
の要部断面図FIG. 1 is a cross-sectional view of a main part of a side surface of a heat exchanger according to Embodiments 1 and 2 of the present invention.
【図2】着霜時の図1のB−B断面図FIG. 2 is a sectional view taken along the line BB of FIG. 1 when frost is formed.
【図3】従来の熱交換器の斜視図FIG. 3 is a perspective view of a conventional heat exchanger.
【図4】従来の熱交換器の側面の要部断面図FIG. 4 is a sectional view of a main part of a side surface of a conventional heat exchanger.
【図5】着霜時の図4のA−A断面図FIG. 5 is a sectional view taken along the line AA of FIG. 4 at the time of frost formation;
【符号の説明】 11 熱交換器 12a,12b 伝熱管 13 フィン 15 空気 16 冷媒[Description of Signs] 11 Heat exchangers 12a, 12b Heat transfer tubes 13 Fins 15 Air 16 Refrigerant
Claims (2)
前記伝熱管に挿入されその間を空気が流動する複数枚の
矩形状フィンより成り、前記伝熱管を前記フィンの略対
角線上に配設すると共に、前記フィンを空気の流れに対
し、前記フィンの前縁が斜めになるように配設したこと
を特徴とする熱交換器。1. A plurality of rows of heat transfer tubes through which a refrigerant flows,
The heat transfer tube includes a plurality of rectangular fins that are inserted into the heat transfer tube and through which air flows, and the heat transfer tube is disposed substantially diagonally to the fin. A heat exchanger characterized in that the edges are arranged obliquely.
前記伝熱管に挿入されその間を空気が流動する複数枚の
矩形状フィンより成り、前記フィンを空気の流れに対
し、前記フィンの前縁が斜めになるように配設すると共
に、前記伝熱管を前記フィンの空気流れ方向に対して垂
直方向側の両端部空間が反対側両端部空間に比べ広くな
るように配設したことを特徴とする熱交換器。2. A plurality of rows of heat transfer tubes through which a refrigerant flows,
It consists of a plurality of rectangular fins that are inserted into the heat transfer tube and through which air flows, and the fins are arranged so that the front edge of the fin is oblique to the flow of air, and the heat transfer tube is A heat exchanger, wherein both end spaces on a side perpendicular to the air flow direction of the fins are arranged to be wider than both end spaces on opposite sides.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16398297A JPH1114191A (en) | 1997-06-20 | 1997-06-20 | Heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16398297A JPH1114191A (en) | 1997-06-20 | 1997-06-20 | Heat exchanger |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1114191A true JPH1114191A (en) | 1999-01-22 |
Family
ID=15784513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16398297A Pending JPH1114191A (en) | 1997-06-20 | 1997-06-20 | Heat exchanger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1114191A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102345957A (en) * | 2010-07-30 | 2012-02-08 | 三菱电机株式会社 | Freezing and refrigerating chamber |
-
1997
- 1997-06-20 JP JP16398297A patent/JPH1114191A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102345957A (en) * | 2010-07-30 | 2012-02-08 | 三菱电机株式会社 | Freezing and refrigerating chamber |
JP2012032094A (en) * | 2010-07-30 | 2012-02-16 | Mitsubishi Electric Corp | Refrigerator-freezer |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3279598B1 (en) | Heat exchanger and air conditioner | |
US6857288B2 (en) | Heat exchanger for refrigerator | |
CN102200365A (en) | Refrigerator | |
JPH09189493A (en) | Heat exchanger with fins | |
JPH08178366A (en) | Heat exchanger | |
US20030150601A1 (en) | Heat exchanger fin for air conditioner | |
JP2004271113A (en) | Heat exchanger | |
JP2000337751A (en) | Cooler, manufacture thereof, freezer/refrigerator and refrigerator | |
JPH1114191A (en) | Heat exchanger | |
JP2006343023A (en) | Cooler | |
JP3886244B2 (en) | Heat exchanger | |
JP2003075087A (en) | Refrigerator | |
CN114061179A (en) | Heat exchange evaporator and refrigerator | |
JP3872996B2 (en) | Heat exchanger | |
JP2022163494A (en) | Heat exchanger | |
JPH10220980A (en) | Heat exchanger | |
JPH10259999A (en) | Heat exchanger | |
US5706886A (en) | Finned tube heat exchanger | |
JPH11201679A (en) | Heat exchanger with fin | |
JP3686463B2 (en) | refrigerator | |
JP3040198B2 (en) | Refrigeration heat exchanger | |
JPH11264689A (en) | Outdoor unit for air conditioner and manufacture of heat exchanger used therefor | |
WO2023068023A1 (en) | Refrigerator | |
KR100366451B1 (en) | Evaporator combined with dual-tube and fins for refrigerator | |
KR0119416Y1 (en) | Heat exchanger structure for refrigerator |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040621 |
|
RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20040713 |
|
RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20050622 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20070227 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070313 |
|
A02 | Decision of refusal |
Effective date: 20071009 Free format text: JAPANESE INTERMEDIATE CODE: A02 |