JPH08226727A - Heat exchanger for heat pump - Google Patents
Heat exchanger for heat pumpInfo
- Publication number
- JPH08226727A JPH08226727A JP7033764A JP3376495A JPH08226727A JP H08226727 A JPH08226727 A JP H08226727A JP 7033764 A JP7033764 A JP 7033764A JP 3376495 A JP3376495 A JP 3376495A JP H08226727 A JPH08226727 A JP H08226727A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- heat
- refrigerant
- parts
- header tanks
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
- F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば電気自動車のよ
うな車両に搭載するのに適したヒートポンプ式の空調装
置に係り、特にヒートポンプ式空調装置に使用される冷
媒蒸発器のような熱交換器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat pump type air conditioner suitable for mounting on a vehicle such as an electric vehicle, and more particularly to a heat exchanger such as a refrigerant evaporator used in the heat pump type air conditioner. Regarding vessels.
【０００２】[0002]
【従来の技術】電気自動車のような車両に搭載されるヒ
ートポンプ式の空調装置においては、車室外等に設けら
れて暖房運転の際に冷媒蒸発器として作動する熱交換器
が、空気中の水分や雨滴の付着凍結による所謂「着霜」
によって通気性が悪化して吸熱能力を失い、その結果、
空調装置の暖房能力が急激に低下することがある。そこ
で、冷媒蒸発器となる室外熱交換器を二つの部分に分割
して、一方を走行風が当たる車体の前端に設置すると共
に、他方を走行風の影響を受け難い位置に設置して、後
者によって最小限度の吸熱能力を維持し、空調装置の暖
房能力の急激な低下を防止する試みがなされている。2. Description of the Related Art In a heat pump type air conditioner mounted on a vehicle such as an electric vehicle, a heat exchanger, which is provided outside the vehicle compartment and operates as a refrigerant evaporator during a heating operation, removes moisture from the air. So-called "frosting" due to freezing of rainwater and raindrops
As a result, the breathability deteriorates and the heat absorption capacity is lost, resulting in
The heating capacity of an air conditioner may drop sharply. Therefore, the outdoor heat exchanger that serves as a refrigerant evaporator is divided into two parts, one of which is installed at the front end of the vehicle body on which the traveling wind hits, and the other of which is installed at a position that is not easily affected by the traveling wind. Has attempted to maintain a minimum heat absorption capacity and prevent a sudden decrease in the heating capacity of the air conditioner.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前述の
ように熱交換器を二つの部分に分割してそれらを別の場
所に設置する場合には、一般的にスペース効率が悪くな
るために、他の部品の搭載の支障になるとか、車室の大
きさを削減してでも複数個の熱交換器の設置場所を生み
出す必要性が生じると共に、それら複数個の熱交換器を
接続するための配管が必要になることから、部品点数の
増加によるコストの上昇、重量の増加のような問題も派
生し、電気自動車のような車両に搭載するのに不利とな
る。However, in the case where the heat exchanger is divided into two parts and they are installed in different places as described above, the space efficiency is generally deteriorated, so that the other parts are not provided. It becomes necessary to create a place for installing multiple heat exchangers even if the size of the passenger compartment is reduced, and piping for connecting these multiple heat exchangers is hindered. Therefore, problems such as an increase in cost and an increase in weight due to an increase in the number of parts also occur, which is disadvantageous for mounting on a vehicle such as an electric vehicle.
【０００４】本発明は、従来技術における前述のような
問題に対処して、新規な手段によってそれらの問題を解
消することを目的としている。The present invention aims to address the above-mentioned problems in the prior art and solve them by new means.
【０００５】[0005]
【課題を解決するための手段】本発明は、前記の課題を
解決するための手段として、実質的に横方向に配置され
て内部を流れる冷媒を分配するか或いは集合させる上下
のヘッダータンクと、実質的に縦方向に配置されて前記
上下のヘッダータンク間を連結することにより冷媒を縦
方向に流すことができる複数個のチューブとを有する複
数個の熱交換器部を備えており、前記複数個の熱交換器
部は、少なくとも下方のヘッダータンクの間に所定の隙
間が生じるように前後に重畳して配置されていると共
に、前記複数個の熱交換器部の内部を同じ冷媒が流れ得
るように接続されていることを特徴とするヒートポンプ
用熱交換器を提供する。As a means for solving the above-mentioned problems, the present invention provides upper and lower header tanks arranged substantially in the lateral direction to distribute or collect the refrigerant flowing therein. A plurality of heat exchanger parts each having a plurality of tubes arranged substantially vertically and connecting the upper and lower header tanks to allow a refrigerant to flow in the vertical direction; The individual heat exchanger parts are arranged in a front-rear manner so as to form a predetermined gap between at least the lower header tanks, and the same refrigerant may flow inside the plurality of heat exchanger parts. A heat exchanger for a heat pump, which is characterized by being connected as described above.
【０００６】[0006]
【作用】本発明によれば、熱交換器を構成する複数個の
熱交換器部が前後に重畳して配置されるので、熱交換器
を設置する場所のスペース効率が高くなり、小さい空間
に大きな容量の熱交換器を設置することが可能になると
共に、複数個の熱交換器部を接続するのに必要な配管の
長さが短くなるので、コスト面や重量の面で不利となる
ことがない。According to the present invention, since a plurality of heat exchanger parts constituting the heat exchanger are arranged in front and back, the space efficiency of the place where the heat exchanger is installed is increased, and the heat exchanger is installed in a small space. A large capacity heat exchanger can be installed, and the length of the piping required to connect multiple heat exchanger parts is shortened, which is disadvantageous in terms of cost and weight. There is no.
【０００７】しかしながら複数個の熱交換器部を前後に
重畳して一箇所に設置するので、それが冷媒蒸発器とし
て使用された場合には着霜によって前後の熱交換器部が
橋絡され、双方の熱交換器部の通気性が同時に悪化する
恐れがある。これに対して本発明では、少なくとも下方
のヘッダータンクの間に所定の隙間が生じるように、前
後の熱交換器部の間に間隔をとっているので、前後の熱
交換器部のいずれか一方が着霜によって通気性を失って
も、前後の熱交換器部の間の隙間を通る空気の流れが他
方の熱交換器部を通過して最小限の熱交換を行うので、
空調装置の暖房能力が急激に低下することが回避され
る。また、霜取り運転の際に生じる融解水や雨水、或い
は凝縮水も、熱交換用のチューブが縦に配列されている
ことと、少なくとも下方のヘッダータンクの間に前述の
隙間が形成されているために、容易に流下して排出され
るので、ヘッダータンク間やチューブ間に水が溜まった
り、凍結してそれらを橋絡、閉塞するようなことがな
い。However, since a plurality of heat exchanger parts are superposed on each other and installed at one place, when they are used as a refrigerant evaporator, the front and rear heat exchanger parts are bridged by frost formation, The air permeability of both heat exchanger parts may be deteriorated at the same time. On the other hand, in the present invention, since there is a gap between the front and rear heat exchanger parts so that a predetermined gap is formed at least between the lower header tanks, either one of the front and rear heat exchanger parts is formed. Even if the air permeability is lost due to frost formation, the air flow through the gap between the front and rear heat exchanger parts passes through the other heat exchanger part to perform minimum heat exchange,
It is possible to prevent the heating capacity of the air conditioner from rapidly decreasing. Also, for melted water, rainwater, or condensed water generated during the defrosting operation, the tubes for heat exchange are arranged vertically and the above-mentioned gap is formed at least between the lower header tanks. In addition, since it easily flows down and is discharged, there is no possibility that water is accumulated between header tanks or tubes and freezes to bridge or block them.
【０００８】[0008]
【実施例】図１の（ａ）及び（ｂ）に本発明のヒートポ
ンプ用熱交換器の実施例を示す。この熱交換器１は、例
えば、電気自動車用の空調装置に使用されるもので、電
気自動車の車室外である車体の前端部等に設置されて、
暖房運転の際に冷媒蒸発器として作動する。図１（ｂ）
から明らかなように、熱交換器１は、所定の間隔をおい
て前後に重なるように配置された２個の熱交換器部１ａ
及び１ｂと、それらの関連部分から構成されている。こ
の場合は矢印によって示した空気の流れの方向に従っ
て、前方（上流側）にある熱交換器部を１ａとし、それ
に付属する部分の参照符号にもａを付して示すと共に、
後方（下流側）にある熱交換器部を１ｂとし、それに付
属する部分の参照符号にもｂを付して示している。EXAMPLE FIGS. 1A and 1B show an example of a heat exchanger for a heat pump according to the present invention. The heat exchanger 1 is used, for example, in an air conditioner for an electric vehicle, and is installed at the front end of the vehicle body outside the passenger compartment of the electric vehicle.
Operates as a refrigerant evaporator during heating operation. Figure 1 (b)
As is clear from the figure, the heat exchanger 1 has two heat exchanger portions 1a arranged at a predetermined interval so as to overlap with each other in the front-rear direction.
And 1b and their related parts. In this case, in accordance with the direction of the air flow indicated by the arrow, the front (upstream side) heat exchanger part is referred to as 1a, and the reference numerals of the parts attached thereto are also indicated by adding a, and
The heat exchanger portion on the rear side (downstream side) is designated as 1b, and the reference numerals of the parts attached thereto are also designated by b.
【０００９】熱交換器部１ａ及び１ｂは、それぞれの上
部において実質的に水平方向に設けられる上部ヘッダー
タンク２ａ，２ｂと、同じく下部において実質的に水平
方向に設けられる下部ヘッダータンク３ａ，３ｂと、空
気流との間で熱交換を行う冷媒が内部を流れるように、
上部及び下部のヘッダータンクを連結している実質的に
垂直方向の多数のチューブ４ａ，４ｂとからなってい
る。なお、図１（ａ）は熱交換器１を後方から見た場合
を示しているので、主として後方の熱交換器部１ｂの上
部ヘッダータンク２ｂと下部ヘッダータンク３ｂ、及び
チューブ４ｂの群が現れており、前方の熱交換器部１ａ
の構成部分は殆ど現れていない。The heat exchanger sections 1a and 1b have upper header tanks 2a and 2b which are provided substantially horizontally in their upper portions, and lower header tanks 3a and 3b which are also provided substantially horizontally in their lower portions. , So that the refrigerant that exchanges heat with the air flow flows inside,
It consists of a number of substantially vertical tubes 4a, 4b connecting the upper and lower header tanks. Since FIG. 1 (a) shows the case where the heat exchanger 1 is viewed from the rear, mainly a group of the upper header tank 2b, the lower header tank 3b, and the tube 4b of the rear heat exchanger portion 1b appears. The front heat exchanger section 1a
The component parts of are almost hidden.
【００１０】図示していないが、所定の間隔をおいて平
行に縦に並んでいるチューブ４ａ，４ｂの間には、それ
らを連結するように平板形或いはコルゲート形のような
形状のフィン（図１（ａ）に９として略示する）が取り
付けられていて、外部を流れる空気とチューブ４ａ，４
ｂ内を流れる冷媒との間の熱交換を助けるようになって
いる。各熱交換器部１ａ及び１ｂの上部ヘッダータンク
２ｂ及び下部ヘッダータンク３ｂには、それぞれ１個以
上のセパレータ（隔壁）５が挿入されていて、それによ
って各ヘッダータンク内の空間が複数個の部分に区画さ
れている。図示実施例の場合は、上部ヘッダータンク２
ａ，２ｂの互いに対向している一端側の区画にそれぞれ
配管ジョイント６ａ及び６ｂを取り付けている。また、
下部ヘッダータンク３ａ，３ｂの他端側の区画を共通の
ジョイントコネクタ７によって連通させている。なお、
図中８は前後の熱交換器部１ａ及び１ｂを、それらの間
に所定の間隔を維持して支持するためのブラケットを示
している。Although not shown, between the tubes 4a and 4b which are vertically arranged in parallel at a predetermined interval, fins having a flat plate shape or a corrugated shape are formed so as to connect them. 1 (a) is attached as a symbol 9), and the air flowing outside and the tubes 4a, 4 are attached.
It is designed to assist in heat exchange with the refrigerant flowing in b. At least one separator (partition) 5 is inserted in each of the upper header tank 2b and the lower header tank 3b of each heat exchanger section 1a and 1b, so that each header tank has a plurality of spaces. It is divided into In the case of the illustrated embodiment, the upper header tank 2
Piping joints 6a and 6b are attached to the sections of a and 2b on one end side facing each other. Also,
A common joint connector 7 connects the other end sections of the lower header tanks 3a and 3b. In addition,
Reference numeral 8 in the drawing denotes a bracket for supporting the front and rear heat exchanger sections 1a and 1b while maintaining a predetermined space therebetween.
【００１１】前述のように、前後の熱交換器部１ａ及び
１ｂの間にはブラケット８によって適度の大きさの隙間
Ｃ1 が保持されているが、実施例についてその数値を例
示すると、上部ヘッダータンク２ａと２ｂの間、及び下
部ヘッダータンク３ａと３ｂの隙間Ｃ1 がいずれも５ｍ
ｍ程度であり、この種の熱交換器ではヘッダータンク２
ａ，３ａ及び２ｂ，３ｂの幅Ｗ1 に対してチューブ４ａ
及び４ｂの幅Ｗ2 の方が小さいため、前後の熱交換器部
のチューブ４ａ，４ｂの間の隙間Ｃ2 は、ヘッダータン
ク間の隙間Ｃ1 の５ｍｍよりもかなり大きくすることが
できる。As described above, the bracket 8 holds the gap C 1 of an appropriate size between the front and rear heat exchanger portions 1a and 1b. The gap C 1 between the tanks 2a and 2b and between the lower header tanks 3a and 3b is 5 m.
m, and in this type of heat exchanger the header tank 2
tube 4a for width W 1 of a, 3a and 2b, 3b
Since the width W 2 of each of the heat exchangers 4 and 4b is smaller, the gap C 2 between the tubes 4a and 4b of the front and rear heat exchanger portions can be made considerably larger than the gap C 1 between the header tanks of 5 mm.
【００１２】熱交換器１が電気自動車の空調装置におけ
る車体前端に取り付けられて、暖房運転の際に冷媒蒸発
器として使用される場合、冷凍サイクルから供給される
冷媒が、前方の熱交換器部１ａの上部ヘッダータンク２
ａに設けられた配管ジョイント６ａから流入し、膨張し
て後方の熱交換器部１ｂの上部ヘッダータンク２ｂに設
けられた配管ジョイント６ｂから流出して冷凍サイクル
に戻るように接続すれば、上部ヘッダータンク２ａ，２
ｂ及び下部ヘッダータンク３ａ，３ｂにはそれぞれセパ
レータ５が設けられて、各ヘッダータンクの内部を複数
個の空間に区画しているので、冷媒は、先ず前方の熱交
換器部１ａの上部ヘッダータンク２ａと下部ヘッダータ
ンク３ａの間で、セパレータ５の数と設置された位置に
よって定まる回数だけチューブ４ａの群を通って上下に
折り返して流れた後に、前後の下部ヘッダータンク３
ａ，３ｂの間を連結しているジョイントコネクタ７を通
って後方の下部ヘッダータンク３ｂへ移り、後方の熱交
換器部１ｂ内で、同様にセパレータ５の数と設置された
位置によって定まる回数だけチューブ４ｂの群を上下に
折り返して流れた後に、配管ジョイント６ｂに到達し
て、図示しない冷凍サイクルへ流出する。この間の主と
してチューブ４ａ，４ｂ内を流れる時に冷媒と空気の流
れとの間に熱交換が行われて、冷媒が蒸発、膨張する。When the heat exchanger 1 is attached to the front end of the vehicle body of an air conditioner of an electric vehicle and is used as a refrigerant evaporator during a heating operation, the refrigerant supplied from the refrigeration cycle is the heat exchanger portion in the front. 1a upper header tank 2
If it is connected so that it flows in from the pipe joint 6a provided in a, expands, flows out from the pipe joint 6b provided in the upper header tank 2b of the rear heat exchanger portion 1b, and returns to the refrigeration cycle, the upper header Tanks 2a, 2
b and the lower header tanks 3a and 3b are each provided with a separator 5 to partition the inside of each header tank into a plurality of spaces, the refrigerant is first of all the upper header tank of the front heat exchanger portion 1a. 2a and the lower header tank 3a, after flowing up and down through the group of tubes 4a a number of times determined by the number of separators 5 and the installed position, the front and rear lower header tanks 3
It moves to the lower header tank 3b at the rear through the joint connector 7 connecting between a and 3b, and in the rear heat exchanger part 1b, similarly, the number of times determined by the number of the separators 5 and the installed position is the same. After the group of tubes 4b is turned upside down and flows, it reaches the pipe joint 6b and flows out to a refrigeration cycle (not shown). During this period, heat exchange is mainly performed between the refrigerant and the flow of air when flowing in the tubes 4a and 4b, and the refrigerant evaporates and expands.
【００１３】熱交換器１が空調装置の暖房運転の際に冷
媒の蒸発器（吸熱器）として使用されると、熱交換器１
は低温の外気を更に冷却することになるため、フィン９
の表面等に着霜が生じる。熱交換器１のような構造で
は、熱交換器内部の圧力損失の影響で冷媒の流路の上流
側に比べて下流側になるほど圧力が低下し、それに従っ
て下流側ほど冷媒の蒸発温度が低下する結果、後方の熱
交換器部１ｂの表面温度が前方の熱交換器部１ａのそれ
よりも低くなるため、着霜は先ず後方の熱交換器部１ｂ
の表面から発生する。着霜が進行して後方の熱交換器部
１ｂのフィン９が完全に目詰まりし、空気の流れが後方
の熱交換器部１ｂを通過することができなくなっても、
実施例の熱交換器１においては、前方の熱交換器部１ａ
を通過した空気の流れが前後のチューブ４ａ，４ｂの間
の隙間Ｃ2 を通って流れるので、それによって前方の熱
交換器部１ａの吸熱能力を確保することができ、目詰ま
りによって急激に空調装置の暖房能力が低下するのを防
止することが可能になる。When the heat exchanger 1 is used as a refrigerant evaporator (heat absorber) during the heating operation of the air conditioner, the heat exchanger 1
Will further cool the low temperature outside air, so the fin 9
Frost is generated on the surface of the. In the structure like the heat exchanger 1, the pressure decreases in the downstream side of the flow path of the refrigerant due to the pressure loss inside the heat exchanger, and accordingly, the evaporation temperature of the refrigerant decreases in the downstream side. As a result, the surface temperature of the rear heat exchanger portion 1b becomes lower than that of the front heat exchanger portion 1a, so that frost is first formed in the rear heat exchanger portion 1b.
Emanates from the surface of. Even if frost formation progresses and the fins 9 of the rear heat exchanger portion 1b are completely clogged, and the air flow cannot pass through the rear heat exchanger portion 1b,
In the heat exchanger 1 of the embodiment, the front heat exchanger portion 1a
Since the flow of the air that has passed through flows through the gap C 2 between the front and rear tubes 4a and 4b, it is possible to secure the heat absorption capacity of the front heat exchanger unit 1a, and the air conditioning is rapidly performed due to clogging. It is possible to prevent the heating capacity of the device from decreasing.
【００１４】また、雨天走行の時のように熱交換器１に
多量の水滴が付着する場合は、空気の流れの上流側であ
る前方の熱交換器部１ａに先に着霜が進行するが、この
場合には、後方の熱交換器部１ｂの下流側に電動ファン
を設けておくことにより、前方の熱交換器部１ａが完全
に目詰まりして空気の流れが通過できなくなっても、前
述の隙間Ｃ2 を通って外部から空気が流入し、後方の熱
交換器部１ｂへの空気の流れが生じるので、後方の熱交
換器部１ｂの吸熱能力を確保することができ、同様に空
調装置の暖房能力が急激に低下するのを防止することが
できる。Further, when a large amount of water drops adhere to the heat exchanger 1 as in the case of running in the rain, frost is first formed on the front heat exchanger portion 1a which is the upstream side of the air flow. In this case, by providing an electric fan on the downstream side of the rear heat exchanger unit 1b, even if the front heat exchanger unit 1a is completely clogged and the air flow cannot pass, Since air flows in from the outside through the above-mentioned gap C 2 and air flows to the rear heat exchanger part 1b, the heat absorption capacity of the rear heat exchanger part 1b can be secured, and similarly. It is possible to prevent the heating capacity of the air conditioner from dropping sharply.
【００１５】次に、比較的に外気温度が高い（例えば７
℃以上）ときや、熱交換器１の除霜を行ったときのよう
に、多量の凝縮水や融解水が発生する場合には、縦方向
に設置されたチューブ４ａ，４ｂやフィン９（それが縦
方向のものであるとき）を伝って水が流下し、下部ヘッ
ダータンク３ａ，３ｂ間に集まるが、下部ヘッダータン
ク３ａ，３ｂ間には上部ヘッダータンク２ａ，２ｂ間と
同様に隙間Ｃ1 が設けられているので、隙間Ｃ1 を通っ
て直ちに下方へ排水されることになり、水が前後の熱交
換器間に長く滞留することがない。Next, the outside air temperature is relatively high (for example, 7
When a large amount of condensed water or melted water is generated, such as when the heat exchanger 1 is defrosted or when the heat exchanger 1 is defrosted, the tubes 4a and 4b and the fins 9 (that Is flowing in the vertical direction) and flows down and collects between the lower header tanks 3a and 3b, but between the lower header tanks 3a and 3b, a gap C 1 is formed between the lower header tanks 2a and 2b. Is provided, the water is immediately drained downward through the gap C 1 , and water does not stay between the front and rear heat exchangers for a long time.
【００１６】前述の場合のように、熱交換器１がヒート
ポンプサイクルにおける室外熱交換器として使用された
場合の空調装置について、図２に空調装置全体のシステ
ム構成を例示する。１０は暖房用の熱交換器と冷房用の
熱交換器を同一のケーシング内に収容した一体型空調ユ
ニットを示しており、その一端側には外気取り入れ口１
１と内気取り入れ口１２が開口していて、それらの間に
ダンパ１３が設けられており、モータ２０によって駆動
されるファン２０’が回転すると、空気取り入れ口１１
及び１２の一方から、或いは双方の空気取り入れ口から
外気と車室内の空気を任意の割合で空調ユニット１０内
へ取り入れるようになっている。As for the air conditioner in the case where the heat exchanger 1 is used as the outdoor heat exchanger in the heat pump cycle as in the case described above, FIG. 2 illustrates the system configuration of the entire air conditioner. Reference numeral 10 denotes an integrated air conditioning unit in which a heat exchanger for heating and a heat exchanger for cooling are housed in the same casing, and an outside air intake port 1 is provided at one end thereof.
1 and the inside air intake 12 are open, a damper 13 is provided between them, and when the fan 20 ′ driven by the motor 20 rotates, the air intake 11
The outside air and the air in the vehicle compartment are taken into the air conditioning unit 10 at an arbitrary ratio from either one of the air intake ports 12 and 12 or both air intake ports.
【００１７】空調ユニット１０の他端側には車室内への
空気の吹き出し口として、デフロスタ吹き出し口１４、
胸元吹き出し口１５、及び足元吹き出し口１６等が開口
しており、空気の吹き出し量を調整するために、それぞ
れダンパ１７，１８，１９によって任意の程度に開閉さ
れるようになっている。ヒートポンプを構成する冷凍サ
イクルは、室外熱交換器として車両の前方におかれる前
述の実施例の熱交換器１（この場合は暖房運転時の冷媒
蒸発器としてだけではなく、冷房運転時の冷媒凝縮器と
しても作動する。但し、配管ジョイント６ａ及び６ｂの
流入、流出の関係は、前述のものに対して反対になって
いる。）の他に、冷媒圧縮機２１と、空調ユニット１０
内に設けられた暖房用の熱交換器（凝縮器）２２と、同
じく冷房用の熱交換器（蒸発器）２３、更に、開弁位置
と閉弁位置の他に絞り作用をする中間程度の開度をとる
ことによって膨張弁ともなり得る電磁弁２４及び２５
と、気液分離器であるアキュムレータ２８と、回転する
流路切り換え弁２９と、暖房運転を行う際に開弁される
電磁弁３０、及び、冷媒の流れ方向を規制する逆止弁３
５等から構成されている。At the other end of the air conditioning unit 10, a defroster outlet 14 is provided as an outlet for air into the passenger compartment.
The chest outlet 15, the foot outlet 16 and the like are open, and in order to adjust the amount of air blown out, the dampers 17, 18 and 19 are opened and closed to an arbitrary degree. The refrigeration cycle that constitutes the heat pump includes the heat exchanger 1 of the above-described embodiment that is placed in front of the vehicle as an outdoor heat exchanger (in this case, not only as a refrigerant evaporator during heating operation, but also as refrigerant condensation during cooling operation). However, the inflow and outflow relationships of the pipe joints 6a and 6b are opposite to those described above.) In addition, the refrigerant compressor 21 and the air conditioning unit 10
A heat exchanger (condenser) 22 for heating provided inside, a heat exchanger (evaporator) 23 for cooling as well, and an intermediate degree of throttling action in addition to the valve opening position and valve closing position. Solenoid valves 24 and 25 that can also serve as expansion valves by taking an opening
An accumulator 28 that is a gas-liquid separator, a rotating flow path switching valve 29, a solenoid valve 30 that is opened when performing a heating operation, and a check valve 3 that regulates the flow direction of the refrigerant.
It is composed of 5 etc.
【００１８】なお、図２において、３１及び３２は暖房
用の熱交換器２２を通過する空気の流量を調整するため
のダンパ、２６は熱交換器１のための通風ファン２６’
を駆動するモータを示している。また、図中矢印Ｃは冷
房運転の際の冷媒の流れを示しており、矢印Ｈは暖房運
転の際の冷媒の流れを示している。つまり、冷房運転及
び暖房運転の際に、それぞれ矢印によって示すような冷
媒の流れが生じるように、電磁弁２４及び２５や電磁弁
３０が開閉される。In FIG. 2, 31 and 32 are dampers for adjusting the flow rate of air passing through the heat exchanger 22 for heating, and 26 is a ventilation fan 26 ′ for the heat exchanger 1.
It shows a motor for driving. Further, arrow C in the drawing indicates the flow of the refrigerant during the cooling operation, and arrow H indicates the flow of the refrigerant during the heating operation. That is, during the cooling operation and the heating operation, the solenoid valves 24 and 25 and the solenoid valve 30 are opened and closed so that the refrigerant flows as shown by the arrows, respectively.
【００１９】図２の流路切り換え弁２９は冷房運転の状
態を実線によって、また、暖房運転の状態を破線によっ
て示している。実線によって示す弁位置をとる冷房運転
の際には、アキュムレータ２８にある気体冷媒は冷媒圧
縮機２１によって圧縮されて熱交換器１を通過する際に
冷却されて液化し、膨張弁程度に半開している電磁弁２
５によって絞られることにより圧力が低下して冷房用の
熱交換器２３内で蒸発する。その結果、外気取り入れ口
１１又は内気取り入れ口１２からファン２０’によって
吸入された空気が冷却されて、選択された吹き出し口１
４，１５，１６等から冷房用の空気として吹き出す。こ
の時は電磁弁２４が閉弁しているので、冷房用の熱交換
器２３を通過した冷媒はアキュムレータ２８に戻る。こ
のような冷媒の流れが図２の中に矢印Ｃによって示され
ている。The flow path switching valve 29 in FIG. 2 shows the cooling operation state by a solid line and the heating operation state by a broken line. During the cooling operation in which the valve position indicated by the solid line is taken, the gas refrigerant in the accumulator 28 is compressed by the refrigerant compressor 21 and is cooled and liquefied when passing through the heat exchanger 1, and is half opened to the extent of the expansion valve. Solenoid valve 2
The pressure is reduced by being throttled by 5, and the heat is evaporated in the heat exchanger 23 for cooling. As a result, the air sucked by the fan 20 'from the outside air intake 11 or the inside air intake 12 is cooled, and the selected outlet 1
It blows out as air for cooling from 4, 15, 16 and the like. At this time, since the electromagnetic valve 24 is closed, the refrigerant that has passed through the heat exchanger 23 for cooling returns to the accumulator 28. Such a refrigerant flow is indicated by an arrow C in FIG.
【００２０】流路切り換え弁２９の弁位置が破線で示し
たように切り換えられると暖房運転の状態になる。前述
のように、暖房運転の際の冷媒の流れは矢印Ｈによって
示されている。即ち、アキュムレータ２８内にある気体
冷媒は、冷媒圧縮機２１によって圧縮されて高温高圧と
なり、暖房用の熱交換器２２へ流れて液化する。その際
に放出される熱によって、ダンパ３１及び３２が開いて
いるときに暖房用の熱交換器２２を通過する空気を加熱
し、暖房用の空気として吹き出し口１４，１５，１６等
から車室内へ吹き出す。When the valve position of the flow path switching valve 29 is switched as shown by the broken line, the heating operation is performed. As described above, the flow of the refrigerant during the heating operation is indicated by the arrow H. That is, the gas refrigerant in the accumulator 28 is compressed by the refrigerant compressor 21 to have a high temperature and high pressure, and flows into the heat exchanger 22 for heating to be liquefied. The heat released at that time heats the air passing through the heat exchanger 22 for heating while the dampers 31 and 32 are open, and the air is blown from the outlets 14, 15, 16 and the like as air for heating. Blow out to.
【００２１】この運転状態では電磁弁２４が膨張弁程度
に半開しているので、液体の冷媒は絞られて室外熱交換
器である熱交換器１へ流れ、その内部で蒸発して気体冷
媒となる。この際の熱交換器１の作用は概ね前述の図１
に示し、先に説明した実施例の場合と同じであって、冷
媒が外気から熱を吸収する際に起こる着霜による通気の
問題や、凝縮水の処理の問題が改善される。このとき電
磁弁２５は閉弁していると共に電磁弁３０が開弁してい
るので、気体冷媒は冷房用の熱交換器２３に流入するこ
となく、電磁弁３０を通ってアキュムレータ２８に戻
る。In this operating state, the solenoid valve 24 is half opened to the extent of the expansion valve, so that the liquid refrigerant is squeezed and flows into the heat exchanger 1, which is an outdoor heat exchanger, and is evaporated inside to become a gas refrigerant. Become. The action of the heat exchanger 1 at this time is generally as shown in FIG.
In the same manner as in the above-described embodiment, the problem of ventilation due to frost that occurs when the refrigerant absorbs heat from the outside air and the problem of treatment of condensed water are improved. At this time, the solenoid valve 25 is closed and the solenoid valve 30 is open, so that the gas refrigerant returns to the accumulator 28 through the solenoid valve 30 without flowing into the heat exchanger 23 for cooling.
【００２２】図２に示す車両用空調装置のシステム構成
によれば、電磁弁２５及び３０を制御することによって
除湿暖房運転を行わせることも可能である。即ち、流路
切り換え弁２９が破線位置をとって暖房運転の状態にあ
り、ダンパ３１及び３２が開いていて、電磁弁２４が半
開して膨張弁となっている状態において、電磁弁２５を
開弁させると共に電磁弁３０を閉弁させると、冷媒圧縮
機２１によって圧縮された冷媒は暖房用の熱交換器２２
内で凝縮して暖房作用をするが、その後、電磁弁２４に
よって絞られて圧力が低下した冷媒は、室外熱交換器で
ある熱交換器１の前方の熱交換器部１ａと後方の熱交換
器部１ｂを順次に流れて外気から熱を吸収するだけでな
く、電磁弁２５を経て冷房用の熱交換器２３内に流入し
て更に膨張するため、熱交換器２３は冷却されてその表
面に空調ユニット１０内の空気中の水分が凝縮して除去
され、それによって除湿作用が行われる。According to the system configuration of the vehicle air conditioner shown in FIG. 2, it is possible to perform the dehumidifying and heating operation by controlling the solenoid valves 25 and 30. That is, the solenoid valve 25 is opened in a state where the flow path switching valve 29 is in the heating operation state with the broken line position, the dampers 31 and 32 are open, and the solenoid valve 24 is half-opened to become an expansion valve. When the valve is closed and the electromagnetic valve 30 is closed, the refrigerant compressed by the refrigerant compressor 21 is heated by the heat exchanger 22 for heating.
The refrigerant, which condenses inside and performs a heating action, is then throttled by the electromagnetic valve 24 and the pressure of which has decreased. The heat exchanger portion 1a in front of the heat exchanger 1 which is an outdoor heat exchanger and the heat exchanger in the rear thereof The heat exchanger 23 is cooled and the surface thereof is cooled because it not only absorbs heat from the outside air by sequentially flowing through the chamber portion 1b but also flows into the heat exchanger 23 for cooling through the solenoid valve 25 and further expands. Further, the moisture in the air in the air conditioning unit 10 is condensed and removed, whereby the dehumidifying action is performed.
【００２３】図３は、図１に示したような本発明の熱交
換器１を室内熱交換器として使用する例を示したもの
で、先に述べた例の車両用空調装置における空調ユニッ
ト１０内に設けられている暖房用の熱交換器２２及び冷
房用の熱交換器２３に代えて、前方の熱交換器部１ａ及
び後方の熱交換器部１ｂからなる複合された熱交換器１
を用いたものということができる。但し、この場合、熱
交換器１の前方の熱交換器部１ａと後方の熱交換器部１
ｂはジョイントコネクタ７によって直結されてはおら
ず、それぞれの部分が独立の熱交換器として作動する。
図３に示す空調装置のシステム構成は、かなりの部分に
おいて図２に示したものと共通の構成要素を備えている
ので、それらの共通点については同じ参照符号を付すこ
とによって重複する説明を省略する。FIG. 3 shows an example in which the heat exchanger 1 of the present invention as shown in FIG. 1 is used as an indoor heat exchanger, and the air conditioning unit 10 in the vehicle air conditioner of the above-mentioned example. Instead of the heat exchanger 22 for heating and the heat exchanger 23 for cooling provided inside, a combined heat exchanger 1 including a front heat exchanger portion 1a and a rear heat exchanger portion 1b.
Can be said to use. However, in this case, the heat exchanger part 1a in front of the heat exchanger 1 and the heat exchanger part 1 in the rear of the heat exchanger 1
b is not directly connected by the joint connector 7, but each part operates as an independent heat exchanger.
Since the system configuration of the air conditioner shown in FIG. 3 has, in a considerable part, the same components as those shown in FIG. 2, common points are assigned the same reference numerals to omit redundant description. To do.
【００２４】前述のように、図３に示す例では、複合さ
れた熱交換器１の前方の熱交換器部１ａが図２の例の冷
房用の熱交換器（蒸発器）２３の代わりに用いられてい
ると共に、後方の熱交換器部１ｂが暖房用の熱交換器
（凝縮器）２２の代わりに用いられている。この場合、
単なる冷房運転や暖房運転の際には熱交換器１の前方の
熱交換器部１ａ又は後方の熱交換器部１ｂの一方にのみ
冷媒の流れが生じるが、除湿暖房運転の際には、それら
の双方に同時に冷媒の流れが生じる。As described above, in the example shown in FIG. 3, the heat exchanger portion 1a in front of the combined heat exchanger 1 is replaced with the heat exchanger (evaporator) 23 for cooling in the example of FIG. In addition to being used, the rear heat exchanger portion 1b is used instead of the heat exchanger (condenser) 22 for heating. in this case,
The flow of the refrigerant occurs only in one of the front heat exchanger portion 1a and the rear heat exchanger portion 1b of the heat exchanger 1 during the simple cooling operation or the heating operation, but during the dehumidifying heating operation, the flow of the refrigerant occurs. At the same time, a refrigerant flow occurs in both.
【００２５】いずれにしてもこの場合は、冷媒蒸発器と
なる前方の熱交換器部１ａに前述の着霜や凝縮水の問題
が生じるが、冷媒凝縮器となる後方の熱交換器部１ｂと
の間に図１（ｂ）に示したような隙間Ｃ1 や隙間Ｃ2 が
与えられているので、着霜等による障害を回避すること
ができる。また、前方の熱交換器部１ａと後方の熱交換
器部１ｂが複合されることによって容積が比較的小さく
なるので、空調装置全体が小型化するという利点もあ
る。なお、図３の例における室外熱交換器２７としては
複合型ではなく単純な形式のものが用いられているが、
これを図１や図２の例のような複合型の熱交換器１とす
ることができることは言うまでもない。In any case, in this case, although the above-mentioned problems such as frost formation and condensed water occur in the front heat exchanger portion 1a which becomes the refrigerant evaporator, the rear heat exchanger portion 1b becomes the refrigerant condenser. Since the gap C 1 and the gap C 2 as shown in FIG. 1 (b) are provided between them, it is possible to avoid an obstacle due to frost formation or the like. Further, since the front heat exchanger portion 1a and the rear heat exchanger portion 1b are combined, the volume becomes relatively small, so that there is also an advantage that the entire air conditioner is downsized. Although the outdoor heat exchanger 27 in the example of FIG. 3 is not a composite type but a simple type,
It goes without saying that this can be used as the composite heat exchanger 1 as shown in the examples of FIGS. 1 and 2.
【００２６】[0026]
【発明の効果】本発明によれば、熱交換器を設置する場
所のスペース効率が高くなり、狭い空間に大きな容量の
熱交換器を設置することが可能になる。なお、複数個の
熱交換器部を設けるものではあっても、それらを接続す
る配管等が短くなるので、コスト面や重量の面で不利に
なることがない。また、複数個の熱交換器部の間に必要
な隙間を取っているので、着霜によって前後の熱交換器
部が橋絡され、双方の熱交換器部の通気性が同時に悪化
する恐れがない。更に、霜取り運転の際に生じる融解水
や雨水、或いは凝縮水等も、熱交換用のチューブが縦に
配列していることと、少なくとも下方のヘッダータンク
の間に水の流下を許す隙間が形成されているために容易
に下方へ流れ落ちるので、ヘッダータンク間やチューブ
間に水が溜まったり、水が凍結してそれらを橋絡するよ
うな恐れがない。According to the present invention, the space efficiency of the place where the heat exchanger is installed is enhanced, and it becomes possible to install the heat exchanger having a large capacity in a narrow space. Even if a plurality of heat exchanger parts are provided, the pipes connecting them are shortened, so that there is no disadvantage in terms of cost and weight. Further, since the necessary gaps are provided between the plurality of heat exchanger parts, the front and rear heat exchanger parts may be bridged by frosting, and the air permeability of both heat exchanger parts may be deteriorated at the same time. Absent. Furthermore, for melted water, rainwater, condensed water, etc. generated during defrosting operation, tubes for heat exchange are arranged vertically, and there is a gap that allows water to flow down at least between the header tanks below. Since it is easily flown downwards, there is no risk of water pooling between header tanks or tubes, or freezing of water to bridge them.
【図１】本発明のヒートポンプ用熱交換器の実施例を示
すもので、（ａ）は熱交換器を後方から見た背面図、
（ｂ）はその側面図である。FIG. 1 shows an embodiment of a heat exchanger for a heat pump of the present invention, (a) is a rear view of the heat exchanger as viewed from the rear,
(B) is the side view.
【図２】本発明のヒートポンプ用熱交換器の適用例を示
す空調装置のシステム構成図である。FIG. 2 is a system configuration diagram of an air conditioner showing an application example of the heat exchanger for heat pump of the present invention.
【図３】本発明のヒートポンプ用熱交換器の他の適用例
を示す空調装置のシステム構成図である。FIG. 3 is a system configuration diagram of an air conditioner showing another application example of the heat exchanger for heat pump of the present invention.
１…熱交換器 １ａ…前方の熱交換器部 １ｂ…後方の熱交換器部 ２ａ，２ｂ…上部ヘッダータンク ３ａ，３ｂ…下部ヘッダータンク ４…チューブ ５…セパレータ ６ａ，６ｂ…配管ジョイント ７…ジョイントコネクタ ８…ブラケット ９…フィン １０…空調ユニット １１…外気取り入れ口 １２…内気取り入れ口 １３，１７，１８，１９…ダンパ １４，１５，１６…吹き出し口 ２１…冷媒圧縮機 ２２…暖房用の熱交換器（凝縮器） ２３…冷房用の熱交換器（蒸発器） ２４，２５…電磁弁 ２７…室外熱交換器 ２８…アキュムレータ ２９…流路切り換え弁 ３０…電磁弁 DESCRIPTION OF SYMBOLS 1 ... Heat exchanger 1a ... Front heat exchanger part 1b ... Rearward heat exchanger part 2a, 2b ... Upper header tank 3a, 3b ... Lower header tank 4 ... Tube 5 ... Separator 6a, 6b ... Piping joint 7 ... Joint Connector 8 ... Bracket 9 ... Fin 10 ... Air conditioning unit 11 ... Outside air intake 12 ... Inside air intake 13,17,18,19 ... Damper 14,15,16 ... Blowout port 21 ... Refrigerant compressor 22 ... Heat exchange for heating Device (condenser) 23 ... Heat exchanger (evaporator) for cooling 24, 25 ... Solenoid valve 27 ... Outdoor heat exchanger 28 ... Accumulator 29 ... Flow path switching valve 30 ... Solenoid valve
Claims (6)
る冷媒を分配するか或いは集合させる上下のヘッダータ
ンクと、実質的に縦方向に配置されて前記上下のヘッダ
ータンク間を連結することにより冷媒を縦方向に流すこ
とができる複数個のチューブとを有する複数個の熱交換
器部を備えており、前記複数個の熱交換器部は、少なく
とも下方のヘッダータンクの間に所定の隙間が生じるよ
うに前後に重畳して配置されていると共に、前記複数個
の熱交換器部の内部を同じ冷媒が流れ得るように接続さ
れていることを特徴とするヒートポンプ用熱交換器。1. An upper and lower header tanks arranged substantially in a horizontal direction for distributing or collecting a refrigerant flowing therein, and a header tank arranged in a substantially vertical direction for connecting the upper and lower header tanks. Is provided with a plurality of heat exchanger parts having a plurality of tubes through which the refrigerant can flow in the vertical direction, and the plurality of heat exchanger parts have at least a predetermined gap between the header tanks below. And a heat exchanger for heat pumps, the heat exchangers being arranged so as to overlap with each other so that the same refrigerant can flow through the insides of the plurality of heat exchanger parts.
蒸発器として使用されていることを特徴とする請求項１
に記載されたヒートポンプ用熱交換器。2. The plurality of heat exchanger units are all used as a refrigerant evaporator.
A heat exchanger for a heat pump described in.
つが冷媒蒸発器として使用されていることを特徴とする
請求項１に記載されたヒートポンプ用熱交換器。3. The heat exchanger for a heat pump according to claim 1, wherein at least one of the plurality of heat exchanger units is used as a refrigerant evaporator.
ことを特徴とする請求項１に記載されたヒートポンプ用
熱交換器。4. The heat exchanger for a heat pump according to claim 1, which is used in an air conditioner for an electric vehicle.
ッダータンクを接続するジョイントコネクタによって直
接に直列に連結されていることを特徴とする請求項１に
記載されたヒートポンプ用熱交換器。5. The heat exchanger for a heat pump according to claim 1, wherein the plurality of heat exchanger units are directly connected in series by a joint connector that connects their header tanks. .
上下方向に流れるように、前記複数個の熱交換器部の前
記上下のヘッダータンクの少なくとも一個にセパレータ
が設けられていることを特徴とする請求項１ないし５の
いずれかに記載されたヒートポンプ用熱交換器。6. A separator is provided in at least one of the upper and lower header tanks of the plurality of heat exchanger units so that the refrigerant is folded back in the heat exchanger unit and flows vertically. The heat exchanger for a heat pump according to claim 1, wherein the heat exchanger is a heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03376495A JP3214278B2 (en) | 1995-02-22 | 1995-02-22 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03376495A JP3214278B2 (en) | 1995-02-22 | 1995-02-22 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08226727A true JPH08226727A (en) | 1996-09-03 |
| JP3214278B2 JP3214278B2 (en) | 2001-10-02 |
Family
ID=12395513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03376495A Expired - Fee Related JP3214278B2 (en) | 1995-02-22 | 1995-02-22 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3214278B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11264688A (en) * | 1998-03-18 | 1999-09-28 | Nippon Light Metal Co Ltd | Multistage heat exchanger |
| JP2001050686A (en) * | 1999-08-05 | 2001-02-23 | Denso Corp | Evaporator |
| WO2011142244A1 (en) * | 2010-05-14 | 2011-11-17 | カルソニックカンセイ株式会社 | Vehicle air conditioning device |
| WO2014155560A1 (en) | 2013-03-27 | 2014-10-02 | 三菱電機株式会社 | Heat exchanger and refrigeration cycle air conditioner using same |
| JP2017172836A (en) * | 2016-03-22 | 2017-09-28 | 株式会社デンソー | Heat exchanger for vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6811086B1 (en) | 1995-07-20 | 2004-11-02 | Fujitsu Limited | Stand for pivotably mounting an optical reading device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0384395A (en) * | 1989-08-23 | 1991-04-09 | Showa Alum Corp | Duplex heat exchanger |
| JPH04131665A (en) * | 1990-09-20 | 1992-05-06 | Sharp Corp | Heat exchanger for air conditioner |
| JPH04254127A (en) * | 1991-02-05 | 1992-09-09 | Matsushita Seiko Co Ltd | Heat exchanger for outdoor device |
| JPH06221724A (en) * | 1993-01-27 | 1994-08-12 | Nippondenso Co Ltd | Freezing cycle |
-
1995
- 1995-02-22 JP JP03376495A patent/JP3214278B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0384395A (en) * | 1989-08-23 | 1991-04-09 | Showa Alum Corp | Duplex heat exchanger |
| JPH04131665A (en) * | 1990-09-20 | 1992-05-06 | Sharp Corp | Heat exchanger for air conditioner |
| JPH04254127A (en) * | 1991-02-05 | 1992-09-09 | Matsushita Seiko Co Ltd | Heat exchanger for outdoor device |
| JPH06221724A (en) * | 1993-01-27 | 1994-08-12 | Nippondenso Co Ltd | Freezing cycle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11264688A (en) * | 1998-03-18 | 1999-09-28 | Nippon Light Metal Co Ltd | Multistage heat exchanger |
| JP2001050686A (en) * | 1999-08-05 | 2001-02-23 | Denso Corp | Evaporator |
| WO2011142244A1 (en) * | 2010-05-14 | 2011-11-17 | カルソニックカンセイ株式会社 | Vehicle air conditioning device |
| JP2011240725A (en) * | 2010-05-14 | 2011-12-01 | Calsonic Kansei Corp | Air conditioning device for vehicle |
| WO2014155560A1 (en) | 2013-03-27 | 2014-10-02 | 三菱電機株式会社 | Heat exchanger and refrigeration cycle air conditioner using same |
| JP2017172836A (en) * | 2016-03-22 | 2017-09-28 | 株式会社デンソー | Heat exchanger for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3214278B2 (en) | 2001-10-02 |
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