JP6684683B2 - Evaporator with cold storage function - Google Patents
Evaporator with cold storage function Download PDFInfo
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- JP6684683B2 JP6684683B2 JP2016177387A JP2016177387A JP6684683B2 JP 6684683 B2 JP6684683 B2 JP 6684683B2 JP 2016177387 A JP2016177387 A JP 2016177387A JP 2016177387 A JP2016177387 A JP 2016177387A JP 6684683 B2 JP6684683 B2 JP 6684683B2
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- 239000003507 refrigerant Substances 0.000 claims description 141
- 239000011232 storage material Substances 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 41
- 238000009423 ventilation Methods 0.000 claims description 31
- 239000002826 coolant Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 12
- 238000005219 brazing Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning For Vehicles (AREA)
Description
この発明は蓄冷機能付きエバポレータに関する。 The present invention relates to an evaporator with a cold storage function.
この明細書および特許請求の範囲において、図１〜図３に矢印Ｘで示す通風方向の下流側から見た上下、左右（図１の上下、左右）を上下、左右というものとする。 In this specification and claims, the up / down and left / right (up / down and left / right in FIG. 1) viewed from the downstream side in the ventilation direction shown by the arrow X in FIGS. 1 to 3 are referred to as up / down and left / right.
たとえば、環境保護や自動車の燃費向上などを目的として、信号待ちなどの停車時にエンジンを自動的に停止させる自動車が提案されている。 For example, a vehicle has been proposed in which the engine is automatically stopped when the vehicle is stopped, such as waiting for a signal, for the purpose of environmental protection and improvement of the fuel efficiency of the vehicle.
当該自動車のカーエアコンにおいては、エバポレータに蓄冷機能を付与し、エンジンが停止して圧縮機が停止した際に、エバポレータに蓄えられた冷熱を放冷して車室内を冷却することが考えられている。 In the car air conditioner of the automobile, it is considered that the evaporator is provided with a cold storage function, and when the engine is stopped and the compressor is stopped, the cold heat stored in the evaporator is released to cool the vehicle interior. There is.
この種の蓄冷機能付きエバポレータとして、本出願人は、先に、長手方向を上下方向に向けるとともに幅方向を通風方向に向けた複数の扁平状冷媒流通管と、蓄冷材が封入された蓄冷材容器と、アウターフィンとを有する熱交換コア部を備えており、熱交換コア部において、通風方向に並んだ２つの冷媒流通管からなる管組が左右方向に間隔をおいて複数配置されることにより、隣り合う管組どうしの間に間隙が形成され、当該全間隙のうちの一部でかつ複数の間隙に蓄冷材容器が冷媒流通管と接するように配置され、前記全間隙のうちの残りの間隙にアウターフィンが冷媒流通管と接するように配置されるとともに、アウターフィンが配置された間隙が通風間隙となされ、全冷媒流通管の材質が同じであり、全冷媒流通管の中に、左右両側壁がアウターフィンに接している第１冷媒流通管と、左右両側壁のうち少なくともいずれか一方の側壁が蓄冷材容器に接している第２冷媒流通管とがあり、第１冷媒流通管の左右両側壁の肉厚と、第２冷媒流通管の左右両側壁の肉厚が同一となっている蓄冷機能付きエバポレータを提案した（特許文献１参照）。 As an evaporator with a cool storage function of this kind, the present applicant has previously proposed that a plurality of flat refrigerant distribution pipes having the longitudinal direction oriented in the vertical direction and the width direction oriented in the ventilation direction, and the cool storage material in which the cool storage material is enclosed. A heat exchange core portion having a container and outer fins is provided, and in the heat exchange core portion, a plurality of pipe sets including two refrigerant distribution pipes arranged in the ventilation direction are arranged at intervals in the left-right direction. Due to this, a gap is formed between adjacent pipe groups, and the cool storage material container is arranged in a part of the whole gap and in a plurality of gaps so as to be in contact with the refrigerant flow pipe, and the rest of the whole gap. While the outer fins are arranged in contact with the refrigerant flow pipes in the gaps, the gaps in which the outer fins are arranged are ventilation gaps, the material of all the refrigerant flow pipes is the same, and in all the refrigerant flow pipes, Left and right sides Has a first refrigerant flow pipe in contact with the outer fin and a second refrigerant flow pipe in which at least one of the left and right side walls is in contact with the cool storage material container. An evaporator with a cold storage function has been proposed in which the wall thickness is the same as the left and right side walls of the second refrigerant flow pipe (see Patent Document 1).
特許文献１記載の蓄冷機能付きエバポレータによれば、圧縮機が作動している通常の冷房時には、第１冷媒流通管内を流れる冷媒の有する冷熱が、その左右両側壁を介して両側のアウターフィンに伝わり、アウターフィンに伝わった冷熱により通風間隙を流れる空気が冷却され、冷却された空気が車室内に送り込まれるようになっている。また、圧縮機が作動している通常の冷房時には、第２冷媒流通管内を流れる冷媒の有する冷熱が、その左右両側壁のうち蓄冷材容器と接している側壁を介して蓄冷材容器内の蓄冷材に伝わって蓄冷材に蓄えられる。
According to the evaporator with a cold storage function described in
圧縮機が停止した際には、蓄冷材容器内の蓄冷材に蓄えられた冷熱が、左右両側壁のうち一方の側壁が蓄冷材容器に接するとともに他方の側壁がアウターフィンに接している第２冷媒流通管における蓄冷材容器と接している前記一方の側壁を介して第２冷媒流通管に伝わり、第２冷媒流通管の前記他方の側壁を介してアウターフィンに伝わり、アウターフィンに伝わった冷熱により通風間隙を流れる空気が冷却され、冷却された空気が車室内に送り込まれるようになっている。したがって、エンジンが停止して圧縮機が停止した際に、エバポレータに蓄えられた冷熱を放冷して車室内を冷却することが可能になり、エンジンが停止した際の冷房能力の急激な低下が抑制されている。 When the compressor is stopped, the cold heat stored in the regenerator material in the regenerator material container has one side wall of the left and right side walls in contact with the regenerator material container and the other side wall in contact with the outer fin. Cold heat transferred to the second refrigerant flow pipe through the one side wall of the refrigerant flow pipe that is in contact with the cool storage material container, transferred to the outer fin through the other side wall of the second refrigerant flow pipe, and transferred to the outer fin As a result, the air flowing through the ventilation gap is cooled, and the cooled air is sent into the vehicle interior. Therefore, when the engine stops and the compressor stops, it becomes possible to cool the interior of the vehicle by discharging the cold heat stored in the evaporator, resulting in a sharp decrease in the cooling capacity when the engine stops. It is suppressed.
ところで、特許文献１記載の蓄冷機能付きエバポレータにおいては、エンジンが停止して圧縮機が停止した際の冷熱の放冷時間を長くするには、蓄冷材の量を増やすことが有効であるが、この場合、熱交換コア部の高さおよび左右方向の寸法を一定とした場合、蓄冷材容器の数を増やす必要があり、アウターフィンが配置された通風間隙の数が減少して通常の冷房時の冷房性能が低下する。
By the way, in the evaporator with a cold storage function described in
この発明は、上記問題を解決し、通常の冷房時の冷却性能の低下を抑制した上で放冷時間を延長しうる蓄冷機能付きエバポレータを提供することにある。 An object of the present invention is to provide an evaporator with a cold storage function, which solves the above-mentioned problems and can suppress the deterioration of cooling performance during normal cooling and extend the cooling time.
本発明は、上記目的を達成するために以下の態様からなる。 The present invention has the following aspects to achieve the above object.
1)長手方向を上下方向に向けるとともに幅方向を通風方向に向けた複数の扁平状冷媒流通管と、蓄冷材が封入された蓄冷材容器と、アウターフィンとを有する熱交換コア部を備えており、熱交換コア部において、複数の冷媒流通管が左右方向に間隔をおいて複数配置されることにより、左右方向に隣り合う冷媒流通管どうしの間に間隙が形成され、蓄冷材容器が、前記全間隙のうちの一部でかつ複数の間隙に冷媒流通管に接するように配置され、アウターフィンが、前記全間隙の残りである複数の間隙に冷媒流通管に接するように配置されている蓄冷機能付きエバポレータであって、
全冷媒流通管の材質が同じであり、全冷媒流通管の中に、左右両側壁がアウターフィンに接している第１冷媒流通管と、左右両側壁のうちいずれか一方の側壁が蓄冷材容器に接するとともに同他方の側壁がアウターフィンに接している第２冷媒流通管とが含まれ、第２冷媒流通管における蓄冷材容器に接している側壁の肉厚が、第１冷媒流通管の左右両側壁の肉厚よりも大きくなっている蓄冷機能付きエバポレータ。
1) a heat exchange core part having a plurality of flat refrigerant distribution pipes with the longitudinal direction oriented in the vertical direction and the width direction oriented in the ventilation direction, a regenerator material container in which a regenerator material is enclosed, and outer fins And, in the heat exchange core portion, a plurality of refrigerant flow pipes are arranged at intervals in the left-right direction, thereby forming a gap between the refrigerant flow pipes adjacent in the left-right direction, the cool storage material container, A part of the total gap is arranged so as to be in contact with the refrigerant flow pipe in a plurality of gaps, and the outer fin is arranged so as to be in contact with the refrigerant flow pipe in a plurality of gaps that are the rest of the total gap. An evaporator with a cold storage function,
All the refrigerant distribution pipes are made of the same material, and the first refrigerant distribution pipe whose left and right side walls are in contact with the outer fins, and one of the left and right side walls is the regenerator material container. And a second refrigerant distribution pipe whose other side wall is in contact with the outer fin, the thickness of the side wall of the second refrigerant distribution pipe in contact with the regenerator material container is equal to the left and right sides of the first refrigerant distribution pipe. An evaporator with a cold storage function that is thicker than the wall thickness of both side walls.
2)第２冷媒流通管における蓄冷材容器に接している側壁の肉厚がアウターフィンに接している側壁の肉厚よりも大きくなっている上記1)記載の蓄冷機能付きエバポレータ。 2) The evaporator with a cold storage function according to 1), wherein the thickness of the side wall of the second refrigerant flow pipe that is in contact with the cool storage material container is larger than the thickness of the side wall that is in contact with the outer fin.
3)第１冷媒流通管の左右両側壁の肉厚が同一であり、第２冷媒流通管におけるアウターフィンに接している側壁の肉厚が、第１冷媒流通管の左右両側壁の肉厚と同一である上記2)記載の蓄冷機能付きエバポレータ。 3) The left and right side walls of the first refrigerant flow pipe have the same thickness, and the side wall thickness of the second refrigerant flow pipe in contact with the outer fins is the same as the left and right side walls of the first refrigerant flow pipe. The same evaporator with a cold storage function as described in 2) above.
4)第１冷媒流通管の左右両側壁の肉厚が同一であり、第２冷媒流通管の左右両側壁の肉厚が同一であるとともに、第１冷媒流通管の左右両側壁の肉厚よりも大きくなっている上記1)記載の蓄冷機能付きエバポレータ。 4) The thickness of the left and right side walls of the first refrigerant flow pipe is the same, the thickness of the left and right side walls of the second refrigerant flow pipe is the same, and the wall thickness of the left and right side walls of the first refrigerant flow pipe is The evaporator with a cold storage function described in 1) above is also becoming larger.
上記1)〜4)の蓄冷機能付きエバポレータによれば、全冷媒流通管の材質が同じであり、全冷媒流通管の中に、左右両側壁がアウターフィンに接している第１冷媒流通管と、左右両側壁のうちいずれか一方の側壁が蓄冷材容器に接するとともに同他方の側壁がアウターフィンに接している第２冷媒流通管とが含まれ、第２冷媒流通管における蓄冷材容器に接している側壁の肉厚が、第１冷媒流通管の左右両側壁の肉厚よりも大きくなっているので、第２冷媒流通管における蓄冷材容器に接している側壁の熱容量が第１冷媒流通管の左右両側壁の熱容量よりも大きくなる。したがって、第１冷媒流通管の左右両側壁の肉厚を特許文献１の第１冷媒流通管の左右両側壁の肉厚と等しくした場合、圧縮機の停止時に、蓄冷材容器内の蓄冷材に蓄えられた冷熱が、第２冷媒流通管を経てアウターフィンに伝わるまでの時間を、特許文献１記載の蓄冷機能付きエバポレータに比べて遅くすることができ、アウターフィンにより通風間隙を流れる空気を冷却する放冷時間を延長することができる。しかも、第１冷媒流通管の左右両側壁の肉厚を、通常の冷房時に第１冷媒流通管内を流れる冷媒の有する冷熱をアウターフィンに効率良く伝えうる肉厚にすることができるとともに、蓄冷材容器の数の増加を抑制してアウターフィンが配置された通風間隙の数の減少を抑制することが可能になり、通常の冷房時の冷房性能の低下を抑制することができる。
According to the evaporator with a cold storage function of the above 1) to 4), the material of all the refrigerant distribution pipes is the same, and in the all refrigerant distribution pipes, the first refrigerant distribution pipe whose left and right side walls are in contact with the outer fins. , A second refrigerant distribution pipe in which one of the left and right side walls is in contact with the cool storage material container and the other side wall is in contact with the outer fin, and is in contact with the cool storage material container in the second refrigerant distribution pipe. Since the thickness of the side wall of the first refrigerant flow pipe is larger than the thickness of the left and right side walls of the first refrigerant flow pipe, the heat capacity of the side wall of the second refrigerant flow pipe in contact with the cool storage material container is the first refrigerant flow pipe. It is larger than the heat capacity of the left and right side walls. Therefore, when the wall thicknesses of the left and right side walls of the first refrigerant flow pipe are made equal to the wall thicknesses of the left and right side walls of the first refrigerant flow pipe of
上記2)および3)の蓄冷機能付きエバポレータによれば、第２冷媒流通管におけるアウターフィンに接する側壁の肉厚を、通常の冷房時に第２冷媒流通管内を流れる冷媒の有する冷熱をアウターフィンに効率良く伝えうる肉厚にすることができ、通常の冷房時の冷房性能の低下を抑制することができる。 According to the evaporator with a cold storage function of the above 2) and 3), the thickness of the side wall of the second refrigerant distribution pipe in contact with the outer fin is set to be the cooling heat of the refrigerant flowing in the second refrigerant distribution pipe during normal cooling to the outer fin. The wall thickness can be efficiently transmitted, and a decrease in cooling performance during normal cooling can be suppressed.
以下、この発明の実施形態を、図面を参照して説明する。 Embodiments of the present invention will be described below with reference to the drawings.
以下の説明において、「アルミニウム」という用語には、純アルミニウムの他にアルミニウム合金を含むものとする。 In the following description, the term "aluminum" includes an aluminum alloy in addition to pure aluminum.
図１はこの発明による蓄冷機能付きエバポレータの全体構成を示し、図２〜図５はその要部の構成を示す。 FIG. 1 shows the entire structure of an evaporator with a cold storage function according to the present invention, and FIGS. 2 to 5 show the structure of the essential parts thereof.
図１〜図３において、蓄冷機能付きエバポレータ(1)は、長手方向を左右方向に向けるとともに幅方向を通風方向に向けた状態で上下方向に間隔をおいて配置されたアルミニウム製上ヘッダタンク(2)およびアルミニウム製下ヘッダタンク(3)と、両ヘッダタンク(2)(3)間に設けられた熱交換コア部(4)とを備えている。 1 to 3, an evaporator with a cold storage function (1) is an upper header tank made of aluminum (in which a longitudinal direction is directed in the left-right direction and a width direction is directed in the ventilation direction, and the aluminum upper header tanks are arranged at intervals in the vertical direction. 2) and an aluminum lower header tank (3), and a heat exchange core part (4) provided between the header tanks (2) and (3).
上ヘッダタンク(2)は、風下側に位置する風下側上ヘッダ部(5)と、風上側に位置しかつ風下側上ヘッダ部(5)に一体化された風上側上ヘッダ部(6)とを備えている。風下側上ヘッダ部(5)の左端部に冷媒入口(7)が設けられ、風上側上ヘッダ部(6)の左端部に冷媒出口(8)が設けられている。下ヘッダタンク(3)は、風下側に位置する風下側下ヘッダ部(9)と、風上側に位置しかつ風下側下ヘッダ部(9)に一体化された風上側下ヘッダ部(11)とを備えている。 The upper header tank (2) is located on the leeward side, and the leeward header section (5) is located on the leeward side and is integrated with the leeward side header section (5). It has and. A refrigerant inlet (7) is provided at the left end of the leeward header section (5), and a refrigerant outlet (8) is provided at the left end of the leeward header section (6). The leeward header tank (3) is located on the leeward side, and the leeward header section (9) is located on the leeward side and is integrated with the leeward side header section (9). It has and.
熱交換コア部(4)には、長手方向を上下方向に向けるとともに幅方向を通風方向に向けた状態で通風方向に間隔をおいて配置された複数、ここでは２つのアルミニウム製扁平状冷媒流通管(12)(13)からなる複数の管組(14)が左右方向に間隔をおいて配置されており、これにより通風方向に並んだ２つの冷媒流通管(12)(13)よりなる管組(14)の隣り合うものどうしの間に間隙(15A)(15B)が形成されている。風下側に並んだ冷媒流通管(12)(13)の上端部は風下側上ヘッダ部(5)に接続されるとともに、同下端部は風下側下ヘッダ部(9)に接続されている。また、風上側に並んだ冷媒流通管(12)(13)の上端部は風上側上ヘッダ部(6)に接続されるとともに、同下端部は風上側下ヘッダ部(11)に接続されている。 In the heat exchange core portion (4), a plurality of, here two, aluminum flat-shaped refrigerant flows arranged with the longitudinal direction oriented vertically and the width direction oriented in the ventilation direction and spaced at intervals in the ventilation direction. A plurality of pipe sets (14) composed of pipes (12) and (13) are arranged at intervals in the left-right direction, and thereby, a pipe composed of two refrigerant flow pipes (12) and (13) arranged in the ventilation direction. Gap (15A) (15B) is formed between the adjacent members of the set (14). The upper ends of the refrigerant flow pipes (12) (13) lined up on the leeward side are connected to the leeward side upper header part (5), and the lower ends thereof are connected to the leeward side lower header part (9). In addition, the upper ends of the refrigerant flow pipes (12) (13) arranged on the windward side are connected to the windward upper header portion (6), and the lower ends thereof are connected to the windward lower header portion (11). There is.
全冷媒流通管(12)(13)の材質は同じである。全冷媒流通管(12)(13)の中に、左右方向に隣り合う第２間隙(15B)どうしの間に位置し、かつ左右両側壁(12a)がアウターフィン(17)に接している第１冷媒流通管(12)と、第１間隙(15A)の左右両側に位置し、かつ左右両側壁(13a)(13b)のうちいずれか一方の側壁(13a)が蓄冷材容器(16)に接するとともに同他方の側壁(13b)がアウターフィン(17)に接している第２冷媒流通管(13)とがある(図２参照)。 The materials of all the refrigerant flow pipes (12) and (13) are the same. In the all-refrigerant flow pipes (12) (13), located between the second gaps (15B) adjacent to each other in the left-right direction, and the left and right side walls (12a) are in contact with the outer fins (17). It is located on both the left and right sides of the first refrigerant flow pipe (12) and the first gap (15A), and one of the left and right side walls (13a) and (13b) of the side wall (13a) is the regenerator material container (16). There is a second refrigerant flow pipe (13) which is in contact with and has the other side wall (13b) in contact with the outer fin (17) (see FIG. 2).
熱交換コア部(4)における全間隙(15A)(15B)のうち一部でかつ複数の第１間隙(15A)に、蓄冷材が封入されたアルミニウム製蓄冷材容器(16)が、各管組(14)を構成する２つの第２冷媒流通管(13)に跨るように配置されて当該両冷媒流通管(13)の一方の側壁(13a)にろう材により接合されている。以下、ろう材による接合をろう付と称する。熱交換コア部(4)における全間隙(15A)(15B)のうち残りの複数の第２間隙(15B)に、両面にろう材層を有するアルミニウムブレージングシートからなり、かつ通風方向にのびる波頂部、通風方向にのびる波底部、および波頂部と波底部とを連結する連結部よりなるコルゲート状のアウターフィン(17)が、各管組(14)を構成する２つの第１および第２冷媒流通管(12)(13)に跨るように配置されており、第２間隙(15B)が通風間隙となっている。第１間隙(15A)の両隣の第２間隙(15B)に配置されたアウターフィン(17)は、第１冷媒流通管(12)の一方の側壁(12a)および第２冷媒流通管(13)の他方の側壁(13b)にろう付されて、その他の第２間隙(15B)に配置されたアウターフィン(17)は、第１冷媒流通管(12)の側壁(12a)にろう付されている。左右両端の管組(14)の外側にも、アウターフィン(17)が、管組(14)を構成する２つの第１冷媒流通管(12)に跨るように配置されて当該両冷媒流通管(12)の側壁(12a)にろう付され、さらに左右両端のアウターフィン(17)の外側にアルミニウム製サイドプレート(18)が配置されてアウターフィン(17)にろう付されている。 An aluminum cold storage material container (16) in which a cold storage material is enclosed in a plurality of first gaps (15A) in a part of all the gaps (15A) and (15B) in the heat exchange core part (4) is provided in each tube. It is arranged so as to straddle the two second refrigerant flow pipes (13) constituting the set (14) and is joined to one side wall (13a) of both refrigerant flow pipes (13) by a brazing material. Hereinafter, joining with a brazing material is referred to as brazing. A wave crest which is made of an aluminum brazing sheet having a brazing filler metal layer on both sides in the remaining plural second gaps (15B) among all the gaps (15A) (15B) in the heat exchange core part (4) and which extends in the ventilation direction. , A corrugated outer fin (17) consisting of a wave bottom extending in the ventilation direction and a connecting portion connecting the wave top and the wave bottom forms two pipes of the first and second refrigerants constituting each pipe set (14). It is arranged so as to straddle the pipes (12) and (13), and the second gap (15B) is a ventilation gap. The outer fins (17) arranged in the second gaps (15B) on both sides of the first gap (15A) include the one side wall (12a) of the first refrigerant flow pipe (12) and the second refrigerant flow pipe (13). The outer fin (17), which is brazed to the other side wall (13b) of the first cooling medium and is disposed in the other second gap (15B), is brazed to the side wall (12a) of the first refrigerant flow pipe (12). There is. Outer fins (17) are also disposed outside the left and right pipe sets (14) so as to straddle the two first refrigerant flow pipes (12) forming the pipe set (14). The side wall (12a) of (12) is brazed, and aluminum side plates (18) are arranged outside the outer fins (17) at the left and right ends and brazed to the outer fins (17).
左右方向に隣り合う２つの第１間隙(15A)どうしの間には複数、ここでは３つの第２間隙(15B)が存在している。なお、左右方向に隣り合う２つの第１間隙(15A)どうしの間の第２間隙(15B)の数は、２以上であることが好ましく、その上限は７であることが好ましい。また、２つの第１間隙(15A)が左右方向に並んで形成されていてもよく、左右方向に並んだ２つの第１間隙(15A)からなる対の間に２以上の第２間隙(15B)が形成されていてもよい。 A plurality of, here, three second gaps (15B) exist between two first gaps (15A) adjacent to each other in the left-right direction. The number of the second gaps (15B) between the two first gaps (15A) adjacent to each other in the left-right direction is preferably 2 or more, and the upper limit thereof is preferably 7. Further, two first gaps (15A) may be formed side by side in the left-right direction, and two or more second gaps (15B) may be formed between a pair of two first gaps (15A) arranged in the left-right direction. ) May be formed.
アウターフィン(17)の風上側端部は風上側冷媒流通管(12)(13)の風上側端部と通風方向の同一位置にあり、アウターフィン(17)の風下側端部は風下側冷媒流通管(12)(13)の風下側端部に対して若干、たとえば１ｍｍ程度風下側に突出した位置にある。アウターフィン(17)の通風方向の幅を、熱交換コア部(4)の通風方向の全幅というものとする。 The windward end of the outer fin (17) is at the same position as the windward end of the windward refrigerant flow pipes (12) and (13) in the ventilation direction, and the leeward end of the outer fin (17) is the leeward refrigerant. The flow pipes (12) and (13) are located at a position slightly projecting to the leeward side with respect to the leeward side end portions, for example, about 1 mm. The width of the outer fins (17) in the ventilation direction is referred to as the total width of the heat exchange core portion (4) in the ventilation direction.
蓄冷材容器(16)は、長手方向を上下方向に向けるとともに幅方向を通風方向に向けた略縦長方形の扁平中空状であり、熱交換コア部(4)の通風方向の全幅の範囲内に位置し、かつ各管組(14)の２つの第２冷媒流通管(13)にろう付された容器本体部(19)と、容器本体部(19)の風下側縁部の一部分、ここでは上部のみに連なるとともにアウターフィン(17)の風下側端部よりも風下側に張り出すように設けられた外方張り出し部(21)とよりなる(図３参照)。 The regenerator material container (16) has a flat hollow shape of a substantially vertical rectangle in which the longitudinal direction is oriented in the up-down direction and the width direction is oriented in the ventilation direction, and is within the range of the entire width in the ventilation direction of the heat exchange core part (4). The container main body (19) which is located and brazed to the two second refrigerant distribution pipes (13) of each pipe assembly (14) and a part of the leeward side edge of the container main body (19), here The outer fin (17) is connected to only the upper part and is formed with an outward projecting portion (21) provided so as to project to the leeward side of the leeward side end of the outer fin (17) (see FIG. 3).
蓄冷材容器(16)は、両面にろう材層を有するアルミニウムブレージングシートにプレス加工が施されることにより形成され、かつ一定幅を有する周縁の帯状部(22a)(23a)どうしが互いにろう付された２枚の略縦長方形状のアルミニウム製容器構成板(22)(23)よりなる。蓄冷材容器(16)には、両容器構成板(22)(23)の帯状部(22a)(23a)を除いた部分を外方に膨出させることによって、中空状の蓄冷材封入部(24)が、容器本体部(19)から外方張り出し部(21)にかけて形成され、蓄冷材封入部(24)内に蓄冷材が入れられている。 The cool storage material container (16) is formed by press working an aluminum brazing sheet having a brazing material layer on both sides, and the peripheral strips (22a) (23a) having a constant width are brazed to each other. It is composed of two substantially vertical rectangular aluminum container component plates (22) and (23). In the cool storage material container (16), the hollow cool storage material enclosing portion ((a) is bulged outward by excluding the parts of both container component plates (22) and (23) except the strip-shaped portions (22a) and (23a). 24) is formed from the container body portion (19) to the outward projecting portion (21), and the cool storage material is put in the cool storage material enclosing portion (24).
蓄冷材容器(16)の蓄冷材封入部(24)の容器本体部(19)に存在する部分の左右両側壁(25)外面に、それぞれ上下方向に一定の流路長さを有するとともに上下両端が開口し、かつ凝縮水を上方から下方に流して下端開口から排水する複数の凝縮水排水溝(26)が通風方向に間隔をおいて形成されている(図３参照)。各凝縮水排水溝(26)は、蓄冷材容器(16)の蓄冷材封入部(24)の左右両側壁(25)における容器本体部(19)に存在する部分に設けられて外方に膨出した２つの排水溝用凸部(27)の間に形成されている。隣り合う２つの凝縮水排水溝(26)は、両凝縮水排水溝(26)間に位置する排水溝用凸部(27)を共有している。すべての排水溝用凸部(27)の膨出端の少なくとも一部が、第１間隙(15A)の左右両側の管組(14)を構成する２つの第２冷媒流通管(13)の一方の側壁(13a)にろう付されている。左側壁(25)の凝縮水排水溝(26)および排水溝用凸部(27)と、右側壁(25)の凝縮水排水溝(26)および排水溝用凸部(27)とは、全体に重複しないように、同一水平面内において通風方向にずれて設けられている。なお、凝縮水排水溝(26)内を微量の空気も流れる。 On the outer surface of both left and right side walls (25) of the portion of the container body portion (19) of the cold storage material enclosing portion (24) of the cold storage material container (16), each has a constant flow path length in the vertical direction and both upper and lower ends. , And a plurality of condensed water drainage grooves (26) for allowing condensed water to flow downward from above and draining from the lower end opening are formed at intervals in the ventilation direction (see FIG. 3). Each condensate drainage groove (26) is provided at a portion of the left and right side walls (25) of the regenerator material enclosure (24) of the regenerator material container (16) that is present in the container body (19) and expands outward. It is formed between the two projected drain projections (27). Two adjacent condensed water drainage grooves (26) share the drainage groove convex portion (27) located between both condensed water drainage grooves (26). One of the two second refrigerant distribution pipes (13) at least a part of the bulging end of all the drainage groove convex portions (27) constitutes the pipe set (14) on both left and right sides of the first gap (15A). Is brazed to the side wall (13a) of the. Condensed water drain groove (26) and drain groove projection (27) on the left side wall (25) and condensed water drain groove (26) and drain groove projection (27) on the right side wall (25) are In the same horizontal plane, they are provided so as not to overlap with each other in the ventilation direction. A small amount of air also flows in the condensed water drain groove (26).
蓄冷材容器(16)の容器本体部(19)内には、オフセット状のアルミニウム製インナーフィン(28)が、上下方向のほぼ全体にわたって配置されている。インナーフィン(28)は、上下方向にのびる波頂部、上下方向にのびる波底部、および波頂部と波底部とを連結する連結部からなる波状帯板(29)が、上下方向に複数並べられるとともに相互に一体に連結されることにより形成され、上下方向に隣り合う２つの波状帯板(29)の波頂部どうしおよび波底部どうしが通風方向に位置ずれしているものである(図２参照）。 In the container body (19) of the cool storage material container (16), offset aluminum inner fins (28) are arranged over almost the entire vertical direction. The inner fin (28) has a plurality of wavy strips (29) arranged in the vertical direction, each of which includes a vertically extending wave crest, a vertically extending wave bottom, and a connecting portion connecting the wave crest and the wave bottom. It is formed by being integrally connected to each other, and the wave crests and wave bottoms of two vertically adjacent wavy strips (29) are displaced in the ventilation direction (see FIG. 2). .
蓄冷材容器(16)の外方張り出し部(21)には、左右両方向に膨らみ、かつ左右方向の寸法が蓄冷材封入部(24)の左右方向の寸法以上となっている膨張部(21a)が設けられており、膨張部(21a)がアウターフィン(17)の通風方向下流側端部よりも通風方向外側（通風方向下流側）に位置している。蓄冷材容器(16)の外方張り出し部(21)の上端部には蓄冷材注入部材(31)が固定されており、蓄冷材は、蓄冷材注入部材(31)を通して蓄冷材封入部(24)内に注入され、蓄冷材注入部材(31)は、蓄冷材封入部(24)内への蓄冷材の注入後に封止されている。 In the outward projecting portion (21) of the cold storage material container (16), an expansion portion (21a) that swells in both left and right directions and has a horizontal dimension equal to or greater than the horizontal dimension of the cold storage material enclosing portion (24). Is provided, and the expansion part (21a) is located outside the ventilation direction downstream end of the outer fin (17) in the ventilation direction (downstream side in the ventilation direction). A regenerator material injection member (31) is fixed to the upper end of the outward projecting portion (21) of the regenerator material container (16), and the regenerator material is passed through the regenerator material injection member (31) to enclose the regenerator material (24). ), The regenerator material injection member (31) is sealed after the regenerator material is injected into the regenerator material enclosing portion (24).
この実施形態のエバポレータ(1)の場合、冷媒は、冷媒入口(7)を通ってエバポレータ(1)の風下側上ヘッダ部(5)内に入り、全冷媒流通管(12)(13)を通って風上側上ヘッダ部(6)の冷媒出口(8)から流出する。 In the case of the evaporator (1) of this embodiment, the refrigerant enters the leeward side upper header section (5) of the evaporator (1) through the refrigerant inlet (7), and all the refrigerant flow pipes (12) (13). And flows out from the refrigerant outlet (8) of the windward header section (6).
図４および図５に示すように、第１冷媒流通管(12)の左右両側壁(12a)の肉厚(t1)は同一である。また、第２冷媒流通管(13)における蓄冷材容器(16)に接している側壁(13a)の肉厚(t2)は、第１冷媒流通管(12)の左右両側壁(12a)の肉厚(t1)、および第２冷媒流通管(13)におけるアウターフィン(17)に接している側壁(13b)の肉厚(t3)よりも大きくなっている。第２冷媒流通管(13)におけるアウターフィン(17)に接している側壁(13b)の肉厚(t3)は、第１冷媒流通管(12)の左右両側壁(12a)の肉厚(t1)と同一である。なお、第２冷媒流通管(13)におけるアウターフィン(17)に接している側壁(13b)の肉厚(t3)は、必ずしも第１冷媒流通管(12)の左右両側壁(12a)の肉厚(t1)と同一である必要はない。さらに、両冷媒流通管(12)(13)には、通風方向に並んだ複数の流路(32)(33)が仕切壁(34)(35)を介して形成されている。 As shown in FIGS. 4 and 5, the left and right side walls (12a) of the first refrigerant flow pipe (12) have the same wall thickness (t1). The wall thickness (t2) of the side wall (13a) of the second refrigerant flow pipe (13) in contact with the regenerator material container (16) is the thickness of the left and right side walls (12a) of the first refrigerant flow pipe (12). It is larger than the thickness (t1) and the wall thickness (t3) of the side wall (13b) in contact with the outer fin (17) of the second refrigerant flow pipe (13). The wall thickness (t3) of the side wall (13b) of the second refrigerant flow pipe (13) in contact with the outer fin (17) is equal to the wall thickness (t1) of the left and right side walls (12a) of the first refrigerant flow pipe (12). ) Is the same. The thickness (t3) of the side wall (13b) of the second refrigerant flow pipe (13) in contact with the outer fin (17) is not necessarily the same as the thickness of the left and right side walls (12a) of the first refrigerant flow pipe (12). It need not be the same as the thickness (t1). Further, a plurality of flow paths (32) (33) arranged in the ventilation direction are formed in both the refrigerant flow pipes (12) (13) via partition walls (34) (35).
蓄冷機能付きエバポレータ(1)は、車両のエンジンを駆動源とする圧縮機、圧縮機から吐出された冷媒を冷却するコンデンサ（冷媒冷却器）、コンデンサを通過した冷媒を減圧する膨張弁（減圧器）とともに冷凍サイクルを構成し、カーエアコンとして、停車時に圧縮機の駆動源であるエンジンを一時的に停止させる車両、たとえば自動車に搭載される。 The evaporator (1) with a cool storage function is a compressor that uses a vehicle engine as a drive source, a condenser (refrigerant cooler) that cools the refrigerant discharged from the compressor, and an expansion valve (pressure reducer) that decompresses the refrigerant that has passed through the condenser. ) And a refrigerating cycle, and is installed as a car air conditioner in a vehicle, such as an automobile, in which the engine, which is the drive source of the compressor, is temporarily stopped when the vehicle is stopped.
圧縮機が作動している通常の冷房時には、圧縮機で圧縮されてコンデンサおよび膨張弁を通過した低圧の気液混相の２相冷媒が、冷媒入口(7)を通って蓄冷機能付きエバポレータ(1)の風下側上ヘッダ部(5)内に入り、全冷媒流通管(12)(13)を通って風上側上ヘッダ部(6)に入り、冷媒出口(8)から流出する。このとき、第１冷媒流通管(12)内を流れる冷媒の有する冷熱が、第１冷媒流通管(12)の左右両側壁(12a)を介して左右両側の第２間隙(15B)に配置されたアウターフィン(17)に伝わる。また、第２冷媒流通管(13)内を流れる冷媒の有する冷熱が、第２冷媒流通管(13)における第１間隙(15A)の両側の第２間隙(15B)に配置されたアウターフィン(17)に接している側壁(13b)を介して当該アウターフィン(17)に伝わる。そして、アウターフィン(17)に伝わった冷熱によって第２間隙(15B)を流れる空気が冷却され、冷却された空気が車室内に送り込まれて冷房に供される。一方、両冷媒流通管(12)(13)内を流れた冷媒は気相となって流出する。 During normal cooling with the compressor operating, the low-pressure gas-liquid mixed two-phase refrigerant that has been compressed by the compressor and passed through the condenser and the expansion valve passes through the refrigerant inlet (7) and the evaporator with cold storage function (1 ) Into the leeward side upper header portion (5), passes through all the refrigerant flow pipes (12) and (13) into the leeward side upward header portion (6), and flows out from the refrigerant outlet (8). At this time, the cold heat of the refrigerant flowing in the first refrigerant flow pipe (12) is arranged in the second gaps (15B) on both the left and right sides via the left and right side walls (12a) of the first refrigerant flow pipe (12). It is transmitted to the outer fin (17). Further, the cold heat of the refrigerant flowing through the second refrigerant flow pipe (13) has outer fins (2B) arranged in the second gaps (15B) on both sides of the first gap (15A) in the second refrigerant flow pipe (13). It is transmitted to the outer fin (17) through the side wall (13b) in contact with the outer fin (17). Then, the cold heat transmitted to the outer fins (17) cools the air flowing through the second gap (15B), and the cooled air is sent into the passenger compartment for cooling. On the other hand, the refrigerant that has flowed in both refrigerant flow pipes (12) and (13) becomes a gas phase and flows out.
また、圧縮機が作動している通常の冷房時には、第２冷媒流通管(13)内を流れる冷媒の有する冷熱が、第２冷媒流通管(13)における蓄冷材容器(16)と接している側壁(13a)に伝わり、当該側壁(13a)から蓄冷材容器(16)の蓄冷材封入部(24)の左右両側壁(25)における容器本体部(19)に存在する部分に設けられた排水溝用凸部(27)の膨出頂壁を経て直接蓄冷材容器(16)内の蓄冷材に伝わるとともに、排水溝用凸部(27)の膨出頂壁から左右両側壁(25)における冷媒流通管(13)にろう付されていない部分およびインナーフィン(28)を経て蓄冷材容器(16)内の蓄冷材の全体に伝わって蓄冷材に冷熱が蓄えられる。 Further, during normal cooling in which the compressor is operating, the cold heat of the refrigerant flowing through the second refrigerant distribution pipe (13) is in contact with the cool storage material container (16) in the second refrigerant distribution pipe (13). Drainage that is transmitted to the side wall (13a) and is provided from the side wall (13a) to the portion existing in the container main body part (19) in the left and right side walls (25) of the cool storage material enclosing portion (24) of the cool storage material container (16). It is directly transmitted to the cold storage material in the cool storage material container (16) through the bulging top wall of the groove convex portion (27), and at the left and right side walls (25) from the bulging top wall of the drain groove convex portion (27). Cold heat is stored in the cold storage material by being transmitted to the entire cold storage material in the cold storage material container (16) through the portion not brazed to the refrigerant flow pipe (13) and the inner fin (28).
圧縮機が作動している通常の冷房時において全冷媒流通管(12)(13)内を流れた冷媒は気相となって流出する。 The refrigerant that has flowed through all the refrigerant flow pipes (12) and (13) during normal cooling while the compressor is operating flows out in a vapor phase.
圧縮機が作動している通常の冷房時には、蓄冷材容器(16)表面に凝縮水が発生するが、当該凝縮水は凝縮水排水溝(26)内に入る。凝縮水排水溝(26)内に溜まった凝縮水が多くなると、溜まった凝縮水に作用する重力が表面張力よりも大きくなって凝縮水排水溝(26)内を流下し、下方に排水される。 During normal cooling with the compressor operating, condensed water is generated on the surface of the cold storage material container (16), and the condensed water enters the condensed water drain groove (26). When the amount of condensed water accumulated in the condensed water drainage groove (26) increases, the gravity acting on the accumulated condensed water becomes larger than the surface tension and flows down in the condensed water drainage groove (26) and is discharged downward. .
圧縮機の停止時には、蓄冷材容器(16)内の蓄冷材に蓄えられた冷熱が、蓄冷材容器(16)の蓄冷材封入部(24)の左右両側壁(25)における容器本体部(19)に存在する部分に設けられた排水溝用凸部(27)の膨出頂壁を経て第２冷媒流通管(13)における蓄冷材容器(16)に接している側壁(13a)に伝わるとともに、インナーフィン(28)から左右両側壁(25)における第２冷媒流通管(13)にろう付されていない部分および排水溝用凸部(27)の膨出頂壁を経て第２冷媒流通管(13)における蓄冷材容器(16)に接している側壁(13a)に伝わる。当該側壁(13a)に伝わった冷熱は、仕切壁(35)およびアウターフィン(17)に接している側壁(13b)を経てアウターフィン(17)に伝わり、第１間隙(15A)の両隣の第２間隙(15B)を通過する空気に伝えられる。アウターフィン(17)に伝わった冷熱は、蓄冷材容器(16)が配置されている第１間隙(15A)の両隣の第２間隙(15B)を通過する空気に伝えられる。したがって、エバポレータ(1)を通過した風の温度が上昇したとしても、当該風は冷却されるので、冷房能力の急激な低下が防止される。 When the compressor is stopped, the cold heat stored in the regenerator material in the regenerator material container (16) is stored in the regenerator material enclosure (24) of the regenerator material container (16) on both left and right side walls (25) of the container body (19). ) Is transmitted to the side wall (13a) in contact with the regenerator material container (16) in the second refrigerant flow pipe (13) through the bulging top wall of the drain groove convex portion (27) provided in The second refrigerant flow pipe from the inner fin (28) to the left and right side walls (25) not brazed to the second refrigerant flow pipe (13) and the bulging top wall of the drain groove projection (27). It is transmitted to the side wall (13a) in contact with the cool storage material container (16) in (13). The cold heat transmitted to the side wall (13a) is transmitted to the outer fin (17) via the side wall (13b) in contact with the partition wall (35) and the outer fin (17), and reaches the first gap on both sides of the first gap (15A). It is transmitted to the air passing through the two gaps (15B). The cold heat transferred to the outer fins (17) is transferred to the air passing through the second gaps (15B) on both sides of the first gap (15A) in which the cold storage material container (16) is arranged. Therefore, even if the temperature of the wind that has passed through the evaporator (1) rises, the wind is cooled, so that a rapid decrease in the cooling capacity is prevented.
圧縮機の停止時においては、第２冷媒流通管(13)における蓄冷材容器(16)に接している側壁(13a)の肉厚(t2)が、第１冷媒流通管(12)の左右両側壁(12a)の肉厚(t1)よりも大きくなっているので、第２冷媒流通管(13)における蓄冷材容器(16)に接している側壁(13a)の熱容量が第１冷媒流通管(12)の左右両側壁(12a)の熱容量よりも大きくなる。したがって、圧縮機が停止した際に蓄冷材容器(16)内の蓄冷材に蓄えられた冷熱が、第２冷媒流通管(13)を経てアウターフィン(17)にまで伝わる時間を比較的遅くすることができ、アウターフィン(17)から第２間隙(15B)を流れる空気への放冷時間を延長することができる。しかも、第１冷媒流通管(12)の左右両側壁(12a)の肉厚(t1)および第２冷媒流通管(13)におけるアウターフィン(17)に接している側壁(13b)の肉厚(t3)を、通常の冷房時に両冷媒流通管(12)(13)内を流れる冷媒の有する冷熱をアウターフィン(17)に効率良く伝えうる肉厚にすることができるとともに、蓄冷材容器(16)の数の増加を抑制してアウターフィン(17)が配置された第２間隙(15B)の数の減少を抑制することが可能になり、通常の冷房時の冷房性能の低下を抑制することができる。 When the compressor is stopped, the thickness (t2) of the side wall (13a) of the second refrigerant flow pipe (13) which is in contact with the cool storage material container (16) is equal to the left and right sides of the first refrigerant flow pipe (12). Since it is larger than the wall thickness (t1) of the wall (12a), the heat capacity of the side wall (13a) of the second refrigerant distribution pipe (13) in contact with the cold storage material container (16) is equal to that of the first refrigerant distribution pipe ( It becomes larger than the heat capacity of the left and right side walls (12a) of 12). Therefore, when the compressor is stopped, the cold heat stored in the regenerator material in the regenerator material container (16) is transmitted to the outer fin (17) via the second refrigerant flow pipe (13) relatively slowly. Therefore, the cooling time from the outer fin (17) to the air flowing through the second gap (15B) can be extended. Moreover, the wall thickness (t1) of the left and right side walls (12a) of the first refrigerant flow pipe (12) and the wall thickness (t) of the side wall (13b) of the second refrigerant flow pipe (13) in contact with the outer fin (17) ( t3) can be made thick enough to efficiently transfer the cold heat of the refrigerant flowing through both refrigerant flow pipes (12) and (13) to the outer fins (17) during normal cooling, and the cold storage material container (16 It is possible to suppress the increase in the number of) and the decrease in the number of the second gaps (15B) in which the outer fins (17) are arranged, and to suppress the decrease in the cooling performance during normal cooling. You can
図６は、この発明による蓄冷機能付きエバポレータにおける第１間隙(15A)の左右両側に位置し、かつ一方の側壁が蓄冷材容器(16)に接するとともに同他方の側壁がアウターフィン(17)に接している第２冷媒流通管の変形例を示す。 FIG. 6 is located on both left and right sides of the first gap (15A) in the evaporator with a cool storage function according to the present invention, and one side wall is in contact with the cool storage material container (16) and the other side wall is an outer fin (17). The modification of the 2nd refrigerant distribution pipe in contact is shown.
図６に示す第２冷媒流通管(40)の左右両側壁(40a)(40b)の肉厚(t4)は互いに同一であるとともに、第１冷媒流通管(12)の左右両側壁(12a)の肉厚よりも大きくなっている。すなわち、第１間隙(15A)の左右両側に位置し、かつ左右両側壁(40a)(40b)のうちいずれか一方の側壁(40a)が蓄冷材容器(16)に接するとともに同他方の側壁(40b)がアウターフィン(17)に接している第２冷媒流通管(40)の左右両側壁(40a)(40b)の肉厚(t4)は互いに同一であるとともに、第１冷媒流通管(12)の左右両側壁(12a)の肉厚よりも大きくなっている。 The thicknesses (t4) of the left and right side walls (40a), (40b) of the second refrigerant flow pipe (40) shown in FIG. 6 are the same as each other, and the left and right side walls (12a) of the first refrigerant flow pipe (12) are the same. Is larger than the wall thickness of. That is, one side wall (40a) of the left and right side walls (40a) (40b) located on both the left and right sides of the first gap (15A) is in contact with the cool storage material container (16) and the other side wall ( The left and right side walls (40a) and (40b) of the second refrigerant distribution pipe (40) whose 40b) are in contact with the outer fin (17) have the same wall thickness (t4) and the first refrigerant distribution pipe (12). It is larger than the wall thickness of both left and right side walls (12a).
この発明による蓄冷機能付きエバポレータは、停車時に圧縮機の駆動源であるエンジンを一時的に停止させる車両のカーエアコンを構成する冷凍サイクルに好適に用いられる。 The cooler-equipped evaporator according to the present invention is suitably used for a refrigeration cycle that constitutes a car air conditioner of a vehicle that temporarily stops an engine that is a drive source of a compressor when the vehicle is stopped.
(1)：蓄冷機能付きエバポレータ
(4)：熱交換コア部
(12)：第１冷媒流通管
(12a)：左右両側壁
(13)(40)：第２冷媒流通管
(13a)(40a)：蓄冷材容器に接している側壁
(13b)(40b)：アウターフィンに接している側壁
(15A)：第１間隙(通風間隙)
(15B)：第２間隙
(16)：蓄冷材容器
(17)：アウターフィン
(1): Evaporator with cold storage function
(4): Heat exchange core
(12): First refrigerant flow pipe
(12a): Left and right side walls
(13) (40): Second refrigerant distribution pipe
(13a) (40a): Side wall in contact with the cool storage material container
(13b) (40b): Side wall in contact with outer fin
(15A): First gap (ventilation gap)
(15B): Second gap
(16): Regenerator container
(17): Outer fin
Claims (4)
全冷媒流通管の材質が同じであり、全冷媒流通管の中に、左右両側壁がアウターフィンに接している第１冷媒流通管と、左右両側壁のうちいずれか一方の側壁が蓄冷材容器に接するとともに同他方の側壁がアウターフィンに接している第２冷媒流通管とが含まれ、第２冷媒流通管における蓄冷材容器に接している側壁の肉厚が、第１冷媒流通管の左右両側壁の肉厚よりも大きくなっている蓄冷機能付きエバポレータ。 A plurality of flat refrigerant distribution pipes with the longitudinal direction oriented in the up-down direction and the width direction oriented in the ventilation direction, a regenerator material container in which a regenerator material is enclosed, and a heat exchange core portion having an outer fin are provided, In the heat exchange core portion, a plurality of refrigerant distribution pipes are arranged at intervals in the left-right direction to form a gap between the refrigerant distribution pipes adjacent in the left-right direction, and the cold storage material container is A cool storage function that is arranged so as to be in contact with the refrigerant flow pipe in a part of the gap and in the plurality of gaps, and the outer fin is arranged so as to be in contact with the coolant flow pipe in the plurality of gaps that are the rest of the entire gap. An evaporator with
All the refrigerant distribution pipes are made of the same material, and the first refrigerant distribution pipe whose left and right side walls are in contact with the outer fins, and one of the left and right side walls is the regenerator material container. And a second refrigerant distribution pipe whose other side wall is in contact with the outer fin, the thickness of the side wall of the second refrigerant distribution pipe in contact with the regenerator material container is equal to the left and right sides of the first refrigerant distribution pipe. An evaporator with a cold storage function that is thicker than the wall thickness of both side walls.
The left and right side walls of the first refrigerant distribution pipe have the same thickness, the left and right side walls of the second refrigerant distribution pipe have the same thickness, and the wall thickness is greater than the left and right side walls of the first refrigerant distribution pipe. The evaporator with a cold storage function according to claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016177387A JP6684683B2 (en) | 2016-09-12 | 2016-09-12 | Evaporator with cold storage function |
| CN201710815873.1A CN107816826B (en) | 2016-09-12 | 2017-09-12 | Evaporator with cold accumulation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016177387A JP6684683B2 (en) | 2016-09-12 | 2016-09-12 | Evaporator with cold storage function |
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| Publication Number | Publication Date |
|---|---|
| JP2018044683A JP2018044683A (en) | 2018-03-22 |
| JP2018044683A5 JP2018044683A5 (en) | 2019-05-23 |
| JP6684683B2 true JP6684683B2 (en) | 2020-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP (1) | JP6684683B2 (en) |
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|---|---|---|---|---|
| FR2847973B1 (en) * | 2002-11-29 | 2006-01-27 | Valeo Climatisation | THERMAL INERTIAL HEAT EXCHANGER FOR A HEAT PUMP CIRCUIT, IN PARTICULAR A MOTOR VEHICLE. |
| JP5796531B2 (en) * | 2012-04-09 | 2015-10-21 | 株式会社デンソー | Vehicle heat exchanger with cold storage function |
| JP6088818B2 (en) * | 2012-12-27 | 2017-03-01 | 株式会社ケーヒン・サーマル・テクノロジー | Evaporator with cool storage function |
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| Publication number | Publication date |
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| JP2018044683A (en) | 2018-03-22 |
| CN107816826B (en) | 2020-11-03 |
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