JPS6249205B2 - - Google Patents
Info
- Publication number
- JPS6249205B2 JPS6249205B2 JP56002127A JP212781A JPS6249205B2 JP S6249205 B2 JPS6249205 B2 JP S6249205B2 JP 56002127 A JP56002127 A JP 56002127A JP 212781 A JP212781 A JP 212781A JP S6249205 B2 JPS6249205 B2 JP S6249205B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- air
- evaporator
- compressor
- heater core
- 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.)
- Expired
Links
- 230000007423 decrease Effects 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00835—Damper doors, e.g. position control
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【発明の詳細な説明】
本発明は車輛用空気調和装置、特にヒータコア
を蓄熱器として用いた車輛用空気調和装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle air conditioner, and more particularly to a vehicle air conditioner using a heater core as a heat storage device.
従来、車輛用空気調和装置は内気外気を導入す
る送風機と、エバポレータと、ヒータコアと、冷
風と暖風との混合割合を調整するエヤミツクスド
ア等を有し、空気吹出口より調和された空気を吹
出すものである。乗車に際して、フルクーラモー
ドに設定した場合、コンプレツサの連続的な作動
により、エバポレータの温度が急低下し、これに
より車室温度が急激に低下する。エバポレータの
温度がさらに低下して凍結温度直前に達するとコ
ンプレツサのオンオフ作動によりこれにほぼ同期
してエバポレータの温度は低温度領域において高
低を繰返す。このため空気吹出口から吹出される
空気の温度が変動することになり、これにより乗
員に不快感を与えることになる。また、車輛の停
車時にはアイドリング時のエンジン負担を軽減す
るためにコンプレツサがオフとされるので、吹出
空気の温度が上昇し、同様に乗員に不快感を与え
てしまう。 Conventionally, vehicle air conditioners include a blower that introduces inside and outside air, an evaporator, a heater core, an air mixer door that adjusts the mixing ratio of cold air and warm air, and blows out conditioned air from an air outlet. It is something. When the full cooler mode is set when riding, the continuous operation of the compressor causes the temperature of the evaporator to drop rapidly, which causes a sudden drop in the cabin temperature. When the temperature of the evaporator further decreases and reaches just before the freezing temperature, the temperature of the evaporator repeats high and low in the low temperature region almost synchronously with the on/off operation of the compressor. As a result, the temperature of the air blown out from the air outlet fluctuates, causing discomfort to the occupants. Furthermore, when the vehicle is stopped, the compressor is turned off in order to reduce the load on the engine during idling, so the temperature of the blown air increases, which also causes discomfort to the occupants.
本発明の目的はヒータコアを冷気の蓄熱器とし
て使用し、必要時にこの冷気を放熱するようにし
て吹出口より吹出される空気の温度の変動を抑え
るものであり、以下実施例を用いて詳細に説明す
る。 The purpose of the present invention is to suppress fluctuations in the temperature of air blown out from an outlet by using a heater core as a heat storage for cold air and dissipating this cold air when necessary. explain.
第１図、第２図は本発明による車輛用空気調和
装置の一実施例を示す簡略構成図及び回路図であ
り、各図において１は外気口２と、内気口３と、
吹出口４を有するダクトであり、その内部には送
風機５と、エバポレータ６と、ヒータコア７と、
エアミツクスドア８が設置され、送風機５からの
内外気はエバポレータ６で冷却され、その冷気は
エヤミツクスドア８の開度θに応じた分だけヒー
タコア７に送られて加熱され、このようにして調
和された空気は空気吹出口４より吹出される。上
記エヤミツクスドア８はアクチユエータ９により
制御され、このアクチユエータ９は第２図に示す
ように一端がトランジスタ１０と１１に接続さ
れ、他端が接地されている。１２はエバポレータ
６に近接して設置された温度センサであり、該セ
ンサ１２と抵抗１３との接続点電圧E1は抵抗１
４を介して演算増幅器１５と１６の反転入力側非
反転入力側にそれぞれ供給される。演算増幅器１
５の非反転入力側には抵抗１７と１８との分圧電
圧E2（２℃程度の温度に相当）が抵抗１９を介
して供給されるもので、第３図ａに示す如くエバ
ポレータ６の温度ｔeが低下し、２℃程度に達す
ると、電圧E1が上昇してE1＞E2となり、その出
力電圧V1は第３図ｂに示す如くＬレベルとな
り、トランジスタ１０をオンとする。また、エバ
ポレータ６の温度が10℃を超えたときＨレベルと
なり、トランジスタ１０をオフとする。演算増幅
器１６の反転入力側には抵抗２０と２１との分圧
電圧E3（10℃程度の温度に相当する）が抵抗２
２を介して供給され、電圧E3とE1との差を増幅
するもので、エバポレータ６の温度が低下し電圧
E1がE3を超えるとその出力電圧V2は第３図ｃに
示す如く０から次第に上昇する。なお、トランジ
スタ１０はスイツチング素子、トランジスタ１１
は電力増幅用であり、上記トランジスタ１１と演
算増幅器１６等により本願の第１の制御回路が構
成され、トランジスタ１０と演算増幅器１５等に
より第２の制御回路が構成される。 1 and 2 are simplified configuration diagrams and circuit diagrams showing one embodiment of a vehicle air conditioner according to the present invention, and in each figure, 1 indicates an outside air port 2, an inside air port 3,
It is a duct having an air outlet 4, and inside thereof a blower 5, an evaporator 6, a heater core 7,
An air mix door 8 is installed, and the inside and outside air from the blower 5 is cooled by an evaporator 6, and the cold air is sent to the heater core 7 and heated by an amount corresponding to the opening degree θ of the air mix door 8, and the conditioned air is is blown out from the air outlet 4. The air mixer door 8 is controlled by an actuator 9, which has one end connected to transistors 10 and 11 and the other end grounded, as shown in FIG. 12 is a temperature sensor installed close to the evaporator 6, and the connection point voltage E1 between the sensor 12 and the resistor 13 is
4 to the inverting and non-inverting inputs of operational amplifiers 15 and 16, respectively. Operational amplifier 1
A divided voltage E 2 (corresponding to a temperature of about 2°C) between resistors 17 and 18 is supplied to the non-inverting input side of the evaporator 5 via a resistor 19, as shown in FIG. 3a. When the temperature t e decreases and reaches about 2°C, the voltage E 1 increases to become E 1 >E 2 , and the output voltage V 1 becomes L level as shown in FIG. 3b, turning on the transistor 10. do. Further, when the temperature of the evaporator 6 exceeds 10° C., it becomes H level and turns off the transistor 10. On the inverting input side of the operational amplifier 16, a divided voltage E 3 (corresponding to a temperature of about 10°C) between resistors 20 and 21 is connected to the resistor 2.
2 and amplifies the difference between the voltages E 3 and E 1 , which lowers the temperature of the evaporator 6 and increases the voltage.
When E 1 exceeds E 3 , the output voltage V 2 gradually increases from 0 as shown in FIG. 3c. Note that the transistor 10 is a switching element, and the transistor 11 is a switching element.
is for power amplification, and the transistor 11, the operational amplifier 16, etc. constitute a first control circuit of the present application, and the transistor 10, the operational amplifier 15, etc. constitute a second control circuit.
以上の構成の車輛用空気調和装置の動作を第３
図ａ〜ｄを用いて説明すると、まず車輛の運転初
期時フルクーラモードに設定するとコンプレツサ
が連続的に駆動されるのでエバポレータ６が急冷
される（第３図ａ参照）。このときはアクチユエ
ータ９の入力は０であるのでエヤミツクスドア８
の開度θは０であり、エバポレータ６からの冷気
はそのまま吹出口４より吹出され、車室の急冷が
なされる。 The operation of the vehicle air conditioner with the above configuration is explained in the third section.
To explain using Figures a to d, first, when the vehicle is set to full cooler mode at the beginning of operation, the compressor is continuously driven and the evaporator 6 is rapidly cooled (see Figure 3a). At this time, the input to the actuator 9 is 0, so the air mixer door 8
The opening degree θ is 0, and the cool air from the evaporator 6 is directly blown out from the air outlet 4, thereby rapidly cooling the passenger compartment.
つぎに、エバポレータ６の温度ｔeが低下して
10℃程度の温度以下となると電圧V2，V3が０か
ら次第に大きくなり、アクチユエータ９の入力が
大きくなり、エヤミツクスドア８が次第に開かれ
（第３図ｄ参照）、エバポレータ６の冷気がヒータ
コア７にも送られ、この送られる量は、エバポレ
ータ６の温度低下に伴ない多くなる。従つて、ヒ
ータコア７のウオータコツクを閉成しておけば、
冷気がヒータコア７に蓄熱される。さらに、エバ
ポレータ６の温度ｔeが低下して２℃程度の温度
に達すると演算増幅器１５の出力V1がＬレベル
（第３図ｂ参照）となり、トランジスタ１０がオ
ンとなつてアクチユエータ９に電源入力が直接供
給され、エヤミツクスドア８の開度θは最大とな
り、エバポレータ６からの冷気は全てヒータコア
７に送られる。従つて、車室内温度が低下せしめ
られるだけではこれと同時に次第にヒータコア６
により冷気が蓄熱される。 Next, the temperature te of the evaporator 6 decreases and
When the temperature drops below about 10°C, the voltages V 2 and V 3 gradually increase from 0, the input to the actuator 9 increases, the air mixer door 8 gradually opens (see Figure 3 d), and the cool air from the evaporator 6 is transferred to the heater core 7. This amount is also sent to the evaporator 6 and increases as the temperature of the evaporator 6 decreases. Therefore, if the water tap of heater core 7 is closed,
The cold air is stored in the heater core 7. Furthermore, when the temperature t e of the evaporator 6 decreases and reaches a temperature of about 2° C., the output V 1 of the operational amplifier 15 becomes L level (see FIG. 3b), the transistor 10 is turned on, and the actuator 9 is supplied with power. The input is directly supplied, the opening degree θ of the air mixer door 8 is maximized, and all the cold air from the evaporator 6 is sent to the heater core 7. Therefore, if the temperature inside the vehicle is simply reduced, the heater core 6 will gradually decrease at the same time.
The cold air stores heat.
エバポレータ６の温度ｔeが２℃以下となりエ
バポレータの凍結直前の温度となるとコンプレツ
サがオンオフ駆動され、エバポレータ６の温度ｔ
eはそれ以上低下せず２℃程度の低温度領域にお
いて高低を繰返す。このようなエバポレータ６の
温度変動時において、エバポレータ６の温度ｔe
が高くなり、ヒータコア７の温度ｔhよりも高く
なるとヒータコア７の冷気が放熱されるので、吹
出空気の温度変動を抑えることができる。 When the temperature t e of the evaporator 6 falls below 2°C and reaches the temperature just before the evaporator freezes, the compressor is driven on and off, and the temperature t of the evaporator 6
e does not decrease any further and repeats high and low levels in the low temperature range of about 2°C. During such temperature fluctuations of the evaporator 6, the temperature t e of the evaporator 6
When the temperature of the heater core 7 becomes higher than the temperature t h of the heater core 7, the cold air of the heater core 7 is radiated, so that temperature fluctuations of the blown air can be suppressed.
また、車輛が停車するとドアが開かれたりエン
ジンがアイドリング状態となるのでコンプレツサ
の回転が低下しエバポレータの温度が上昇する
が、このときもエバポレータ６の温度ｔeがヒー
タコア７の温度ｔhより高くなるとヒータコア７
の冷気が放熱されるので吹出空気の温度上昇を抑
えることができる。 In addition, when the vehicle is stopped, the doors are opened and the engine is idling, so the rotation of the compressor decreases and the temperature of the evaporator increases. At this time, too, the temperature t e of the evaporator 6 is higher than the temperature t h of the heater core 7. When it comes to heater core 7
Since the cold air is radiated, the temperature rise of the blown air can be suppressed.
なお、本実施例によればエバポレータ６の温度
を検出し、エヤミツクスドア８を制御するとして
説明したが、本発明はこれに限定されず車室内温
度又は吹出口からの吹出温度を検出し、この温度
が低下して第１設定温度以下となるとエヤミツク
スドア８の開度θを次第に大きくし、第２設定温
度に達するとエヤミツクスドアの開度を最大に固
定するように制御してもよい。 Although the present embodiment has been described as detecting the temperature of the evaporator 6 and controlling the air mixer door 8, the present invention is not limited to this. When the temperature decreases to below the first set temperature, the opening degree θ of the air mix door 8 may be gradually increased, and when the second set temperature is reached, the opening degree of the air mix door 8 may be fixed to the maximum.
以上説明したように本発明によれば少なくとも
エバポレータと、クーラモード時冷気を蓄熱する
ヒータコアと、上記エバポレータから上記ヒータ
コア側に供給される空気量を制御するエヤミツク
スドアとを具備し、冷凍サイクルをコンプレツサ
のオンオフで制御する車輛用空気調和装置におい
て、エバポレータの温度又はエバポレータの下流
側の空気温度又は車室内の温度がコンプレツサの
駆動により低下して第１設定温度より低くなると
この温度低下に依存してエヤミツクスドアの開度
を次第に大きくしヒータコア側への空気量を多く
して蓄熱を行う第１の制御回路と、該温度がさら
に低下してコンプレツサ停止前の第２設定温度に
達すると該温度が第１設定温度を超えるまでの間
エアミツクスドアの開度を最大値に固定するよう
に制御する第２の制御回路を設けて、エバポレー
タの温度又はエバポレータ側より送出される空気
の温度又は車室内の温度が低下して第１設定温度
以下となるとエヤミツクスドアの開度が次第に大
きくなるようにしたので、車室内の空気の温度低
下に対し悪影響を与えることなくヒータコアに冷
気を蓄熱できる。また、上記温度がさらに低下し
て第２設定温度に達すると、この温度がほぼ第１
設定温度を超えるまでの間エヤミツクスドアの開
度を最大値に設定するようにしたのでヒータコア
に蓄熱された冷気をエバポレータ又は車室内の温
度上昇時に放熱できるので、吹出温度の変動を抑
えることができ、乗員のフイーリングを向上でき
る。 As explained above, the present invention includes at least an evaporator, a heater core that stores cold air in the cooler mode, and an air mix door that controls the amount of air supplied from the evaporator to the heater core, and the refrigeration cycle is controlled by the compressor. In a vehicle air conditioner that is controlled in an on/off manner, when the temperature of the evaporator, the temperature of the air downstream of the evaporator, or the temperature inside the vehicle decreases due to the drive of the compressor and becomes lower than the first set temperature, the air mixer door is activated depending on this temperature decrease. A first control circuit that gradually increases the opening degree of the compressor to increase the amount of air to the heater core side to store heat, and when the temperature further decreases and reaches a second set temperature before stopping the compressor, the A second control circuit is provided that controls the opening degree of the air mix door to be fixed at the maximum value until the set temperature is exceeded, so that the temperature of the evaporator, the temperature of the air sent from the evaporator side, or the temperature in the passenger compartment decreases. Since the opening degree of the air mixer door gradually increases when the temperature drops below the first set temperature, cold air can be stored in the heater core without adversely affecting the temperature drop of the air inside the vehicle. Further, when the temperature further decreases and reaches the second set temperature, this temperature becomes almost the first set temperature.
Since the opening degree of the air mixer door is set to the maximum value until the set temperature is exceeded, the cold air stored in the heater core can be radiated when the temperature in the evaporator or the passenger compartment rises, so fluctuations in the blowout temperature can be suppressed. It can improve the feeling of the passengers.
第１図、第２図は本発明による車輛用空気調和
装置の一実施例を示す簡略構成図及び回路図、第
３図ａ〜ｄは上記車輛用空気調和装置の動作を説
明するための波形図である。
５……送風機、６……エバポレータ、７……ヒ
ータコア、８……エヤミツクスドア、９……アク
チユエータ、１２……温度センサ。
1 and 2 are simplified configuration diagrams and circuit diagrams showing one embodiment of the vehicle air conditioner according to the present invention, and FIGS. 3 a to 3 d are waveforms for explaining the operation of the vehicle air conditioner. It is a diagram. 5... Blower, 6... Evaporator, 7... Heater core, 8... Air mix door, 9... Actuator, 12... Temperature sensor.
Claims (1)
冷気を蓄熱するヒータコアと、上記エバポレータ
から上記ヒータコア側に供給される空気量を制御
するエヤミツクスドアとを具備し、冷凍サイクル
をコンプレツサのオンオフで制御する車輛用空気
調和装置において、エバポレータの温度又はエバ
ポレータの下流側の空気温度又は車室内の温度が
コンプレツサの駆動により低下して第１設定温度
より低くなるとこの温度低下に依存してエヤミツ
クスドアの開度を次第に大きくしヒータコア側へ
の空気量を多くして蓄熱を行う第１の制御回路
と、該温度がさらに低下してコンプレツサ停止前
の第２設定温度に達すると該温度が第１設定温度
を超えるまでの間エアミツクスドアの開度を最大
値に固定するように制御する第２の制御回路を設
けたことを特徴とする車輛用空気調和装置。1 An air conditioner for a vehicle that includes at least an evaporator, a heater core that stores cold air in cooler mode, and an air mixer door that controls the amount of air supplied from the evaporator to the heater core, and that controls a refrigeration cycle by turning on and off a compressor. When the temperature of the evaporator, the temperature of the air downstream of the evaporator, or the temperature inside the vehicle compartment decreases due to the drive of the compressor and becomes lower than the first set temperature, the opening degree of the air mixer door is gradually increased depending on this temperature decrease, and the opening degree of the air mixer door is gradually increased. A first control circuit increases the amount of air to the compressor to store heat, and when the temperature further decreases and reaches the second set temperature before stopping the compressor, the air mix door is operated until the temperature exceeds the first set temperature. An air conditioner for a vehicle, comprising a second control circuit that controls the opening degree to be fixed at a maximum value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP212781A JPS57118909A (en) | 1981-01-12 | 1981-01-12 | Car airconditioner device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP212781A JPS57118909A (en) | 1981-01-12 | 1981-01-12 | Car airconditioner device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57118909A JPS57118909A (en) | 1982-07-24 |
| JPS6249205B2 true JPS6249205B2 (en) | 1987-10-19 |
Family
ID=11520669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP212781A Granted JPS57118909A (en) | 1981-01-12 | 1981-01-12 | Car airconditioner device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57118909A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61100806A (en) * | 1984-09-28 | 1986-05-19 | Kikai Syst Shinko Kyokai | Maintenance robot |
| JPH0696367B2 (en) * | 1988-07-30 | 1994-11-30 | サンデン株式会社 | Car heating system |
| JPH0241919A (en) * | 1988-07-30 | 1990-02-13 | Sanden Corp | Heating system for car |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553330U (en) * | 1978-06-23 | 1980-01-10 |
-
1981
- 1981-01-12 JP JP212781A patent/JPS57118909A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553330U (en) * | 1978-06-23 | 1980-01-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57118909A (en) | 1982-07-24 |
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