587030 A7 _ B7 五、發明説明（巧） 發明背景 1 ·發明部份： (讀先閱讀背面之注意事項存填寫本貢) 本發明係有關僅具有冷卻功能之車輛空氣調節器，無 加熱單位，諸如加熱核心。 2 ·有關技藝之說明： 經濟部智慈財1局員工消費合作社印製 一般言之，最熱地區，諸如東南亞中所用之車輛空氣 調節器不設置加熱單位，諸如加熱核心，而僅具有冷卻功 能。在空氣調節器中，僅設置冷凍循環之一蒸發器於空氣 調節單位之空氣調節箱中，由蒸發冷凍劑循環之低壓冷凍 劑冷卻吹進客箱中之空氣。在此空氣調節器中，來自蒸發 器之冷卻空氣直接引進於客箱中，而不由具有加熱功能之 加熱單位加熱。故此，自蒸發器吹來之空氣溫度由溫度感 測器偵測，且依所偵得之溫度，控制中斷冷凍劑循環之壓 縮器之操作，俾可控制吹進客箱中之空氣溫度。然而，在 壓縮器之此中斷控制方法中，由於中斷以1 0 0%放出容 量操作之壓縮器，當壓縮器再開動時，自蒸發器吹出之空 氣溫度過度降低至較之目標溫度爲低之一溫度。由於溫度 感測器之反應延遲，自蒸發器吹出之空氣溫度更爲過度降 低。 而且，在低冷卻負載中，諸如在外部空氣溫度低之情 形中，吸進於蒸發器中之空氣溫度低。在此情形，更易引 起空氣溫度之過度降低。故此，在低冷卻負載中，僅由壓 縮器之操作之中斷，難以維持由客箱中之乘客所設定之一 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ~ 587030 A7 _____B7^____ 五、發明説明（2 ) 設定溫度。故此，客箱中之乘客之空氣調節感覺惡化。 (請先閱讀背面之注意事項再填寫本頁) 而且，當在低外部空氣溫度中執行擋風玻璃之除霜操 作時，客箱中之乘客可有冷卻感覺。在此情形，當壓縮器 之操作停止時，擋風玻會結霜。 發明槪要 鑒於以上問題，本發明之目的在提供一種僅有冷卻功 能之車輛空氣調節器，此防止客箱之溫度過度下降，即使 在低冷卻負載中亦然。 經濟部智慧財產局員工消費合作社印製 依據本發明，在僅具有冷卻功能之一車輛空氣調節器 中，設置一冷卻熱交換器於空氣調節箱中，用以冷卻欲通 過出口開口吹進客箱中之空氣，且空氣調節箱具有一旁通 通道，在冷卻熱交換器之上游空氣方之空氣通過此而直接 引進於客箱中，同時繞過冷卻交換器及出口開口。故此 ，在低冷卻負載，諸如在低外部空氣溫度之情形中，未冷 卻之高溫空氣可經由旁通通道直接吹進客箱中，同時繞過 冷卻熱交換器。故此，即使在低冷卻負載中，可防止客箱 之溫度過度降低，且可充分防止不愉快之感覺（冷卻感覺 )。而且，未冷卻之空氣通過旁通通道直接吹進客箱中， 同時來自蒸發器之冷卻空氣通過出口開口吹進客箱中。如 此，可防止在空氣調節箱中引起凝結，且可限制霜狀空氣 吹進客箱中。 旁通通道宜具有一空氣出口在下游端，及空氣出口向 客箱之下部開口。故此，可防止由於未冷卻之空氣經由旁 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -5- 587030 A7 B7 五、發明説明（3 ) 通通道吹進客箱中所引起之客箱中之乘客之空氣調節感覺 之惡化。 (請先閱讀背面之注意事項再填寫本頁) 而且，空氣調節器包含控制裝置，用以依據冷卻熱交 換器之冷卻負載，控制旁通門之打開程度。當冷卻負載低 於一預定値時，由控制裝置控制旁通門，以打開旁通通道 。或且，當冷卻負載高於該預定値時，由控制裝置控制旁 通門，以關閉旁通通道。如此，可進一步改善客箱中乘客 之空氣調節感覺。 附圖簡述 自以下較宜實施例之詳細說明，並參考附圖，可更易 明暸本發明之其他目的及優點，在附圖中： 圖1爲槪要圖，顯示本發明之實施例之車輛空氣調節 器之整個結構； 圖2爲槪要斷面圖，顯示在車輛上之該實施例之空氣 調節單位之安裝狀態； 經濟部智慧財產局員工消費合作社印製 圖3爲流程圖，顯示圖1所示之車輛空氣調節器之控 制程序；及 圖4爲曲線圖，顯示該實施例之客箱之內部溫度（ T r )及旁通門之打開程度間之關係。 元件對照表 1 :空氣調節單位 2 :空氣調節箱 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） -6- 587030 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明説明（/ ) 4 2 a :空氣通道 3 :外部空氣吸入口 4 :內部空氣吸入口 5:內部/外部空開切換匣 5 a :內部/外部空氣切換門 6 :伺服馬達 7 :吹風機 7 a :離心風扇 7 b :馬達 7 c :蝸殼 8:吹風機驅動電路 11:蒸發器 1 2 :壓縮器 1 2 a :電螺管離合器 1 3 :凝結器 1 4 :接收器 1 5 :膨脹閥 1 6 :壓 縮 器 驅 動 電路 2 1 :除 霜 器 空 氣 開口 2 2 :面 空 氣 開 □ 2 3 ••足 空 氣 開 □ 2 4 ••除 霜 器 門 2 5 :面 門 2 6 :足門 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閱讀背面之注意事項再填寫本頁)587030 A7 _ B7 V. Description of the invention (Clever) Background of the invention 1 · Inventive part: (Read the precautions on the back and fill in this tribute) The present invention relates to vehicle air conditioners with cooling function only, no heating unit, Such as heating the core. 2 · Explanation of skills: Printed by the Consumer Cooperatives of the 1st Bureau of Intellectual Property, Ministry of Economic Affairs Generally speaking, the air conditioners of vehicles used in the hottest regions, such as Southeast Asia, do not have heating units, such as heating cores, but only have cooling functions . In the air conditioner, only one evaporator of the refrigerating cycle is set in the air conditioning box of the air conditioning unit, and the air blown into the passenger box is cooled by the low pressure refrigerant circulating the evaporating refrigerant. In this air conditioner, the cooling air from the evaporator is directly introduced into the passenger box, and is not heated by a heating unit having a heating function. Therefore, the temperature of the air blown from the evaporator is detected by the temperature sensor, and the operation of the compressor that interrupts the refrigerant cycle is controlled according to the detected temperature, so that the temperature of the air blown into the passenger compartment can be controlled. However, in this interrupt control method of the compressor, because the compressor operating at 100% discharge capacity is interrupted, when the compressor is restarted, the temperature of the air blown from the evaporator is excessively lowered to a temperature lower than the target temperature.一 温度。 A temperature. Due to the delayed response of the temperature sensor, the temperature of the air blown from the evaporator is reduced even more. Moreover, in a low cooling load, such as in a case where the outside air temperature is low, the temperature of the air sucked into the evaporator is low. In this case, it is more likely to cause an excessive decrease in air temperature. Therefore, in a low cooling load, it is difficult to maintain only one compressor set interrupted by the operation of the compressor. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) ~ 587030 A7 _____B7 ^ ____ 5. Description of the invention (2) Set temperature. Therefore, the air-conditioning feeling of the passengers in the passenger box is deteriorated. (Please read the precautions on the back before filling out this page.) Also, when the defrosting operation of the windshield is performed at a low outside air temperature, passengers in the trunk can feel cool. In this case, the windshield frosts when the operation of the compressor is stopped. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a vehicle air conditioner having only a cooling function, which prevents the temperature of the passenger compartment from falling excessively even in a low cooling load. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs According to the present invention, a cooling heat exchanger is provided in the air-conditioning box in the air conditioner of one of the vehicles having only a cooling function for cooling the air to be blown into the passenger box through the outlet opening In the air, and the air conditioning box has a bypass channel, the air on the upstream side of the cooling heat exchanger is directly introduced into the passenger box while bypassing the cooling exchanger and the outlet opening. Therefore, at low cooling loads, such as in the case of low outside air temperature, the uncooled high-temperature air can be directly blown into the passenger compartment through the bypass passage, while bypassing the cooling heat exchanger. Therefore, even at a low cooling load, the temperature of the passenger compartment can be prevented from being excessively lowered, and an unpleasant feeling (cooling feeling) can be sufficiently prevented. Moreover, the uncooled air is directly blown into the passenger box through the bypass passage, while the cooled air from the evaporator is blown into the passenger box through the outlet opening. This prevents condensation in the air-conditioning box and restricts the blowing of frost-like air into the passenger box. The bypass passage preferably has an air outlet at the downstream end, and the air outlet opens to the lower part of the passenger box. Therefore, it is possible to prevent the uncooled air from being blown into the passenger compartment through the passage of the paper to the Chinese National Standard (CNS) A4 specification (210X297 mm) -5- 587030 A7 B7 V. Description of the invention (3) The air conditioning sensation of the passengers in the trunk deteriorates. (Please read the precautions on the back before filling out this page.) Moreover, the air conditioner contains control devices to control the degree of opening of the bypass door based on the cooling load of the cooling heat exchanger. When the cooling load is lower than a predetermined threshold, the bypass device is controlled by the control device to open the bypass channel. Or, when the cooling load is higher than the predetermined threshold, the bypass device controls the bypass door to close the bypass channel. In this way, the air-conditioning feeling of passengers in the trunk can be further improved. The accompanying drawings are briefly described in the following detailed description of preferred embodiments, and other objects and advantages of the present invention can be more easily understood with reference to the accompanying drawings. In the drawings: FIG. 1 is a schematic diagram showing a vehicle according to an embodiment of the present invention The entire structure of the air conditioner; Figure 2 is a cross-sectional view showing the installation status of the air conditioning unit of this embodiment on a vehicle; printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs; The control program of the vehicle air conditioner shown in Fig. 1; and Fig. 4 is a graph showing the relationship between the internal temperature (T r) of the passenger box and the opening degree of the bypass door in this embodiment. Component comparison table 1: Air-conditioning unit 2: Air-conditioning box The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm)-6-587030 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 5. Description of the invention (/) 4 2 a: air passage 3: external air suction port 4: internal air suction port 5: internal / external air-open switching box 5 a: internal / external air switching door 6: servo motor 7: blower 7 a : Centrifugal fan 7 b: motor 7 c: volute 8: blower drive circuit 11: evaporator 1 2: compressor 1 2 a: electric solenoid clutch 1 3: condenser 1 4: receiver 1 5: expansion valve 1 6: Compressor drive circuit 2 1: Defroster air opening 2 2: Face air opening □ 2 3 •• Foot air opening □ 2 4 •• Defroster door 2 5: Surface door 2 6: Foot door paper size Applicable to China National Standard (CNS) A4 specification (210X 297 mm) (Please read the precautions on the back before filling this page)
587030 A7 ___ B7 五、發明説明（e) u 2 7 :旁通通道 2 7 a :空氣出口 (請先閱讀背面之注意事項再填寫本頁) 2 8 :旁通門 3 0 :空氣調節操作板 3 1 :空氣調節開關 3 2 :空氣吹入量開關 3 3 :空氣模式選擇開關 3 4 :空氣出口模式選擇開關 3 5 :溫度設定開關 3 6 :自動開關 3 7 :內部空氣溫度感測器 3 8 :外部空氣溫度感測器 3 9 :太陽輻射感測器 4 0 :蒸發器溫度感測器 較佳蹇施例之詳細說明 經濟部智慧財產局員工消費合作社印製 以下參考附圖，說明本發明之較佳實施例。在圖1所 示之空氣調節單位（車輛空氣調節器）1中，不設置加熱 功能，而僅設置冷卻功能。空氣調節單位1爲一自動空氣 調節器，用以自動控制欲吹進客箱中之空氣溫度，一空氣 出口模式之切換操作，一空氣吹送量等。在本實施例中， 空氣調節單位1執行車輛之客箱之空氣調節操作，包含一 驅動引擎（引擎）E用以驅動車輛。空氣調節單位1置於 撞板P (圖2 )內，在客箱中車輛前側處，並由空氣調節 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -8- 587030 A7 一 —_B7 五、發明説明（β ) 〇 控制器（空氣調節E C U ) 1 〇控制。 (請先閱讀背面之注意事項再填寫本頁) 空氣調節單位1包含樹脂所製之一空氣調節箱2。空 氣調節箱2界定一空氣通道2 a ，調節之空氣流過此而至 客箱。一內部/外部空氣切換匣（切換匣）5設置於空氣 調節箱2中，在最上游方。一外部空氣吸入口 3及一內部 空氣吸入口 4設置於切換E 5中，及一內部/外部空氣切 換門（切換門）5 a以可轉動之方式固定於切換匣5。切 換門5 a由一伺服馬達（驅動裝置）6驅動，以切換外部 空氣引入模式及內部空氣引入模式之一。在外部空氣引入 模式中，自外部空氣吸入口 3引入客箱外部之空氣（外部 空氣）。在內部空氣引入模式中，自內部空氣吸入口 4引 入客箱內部之空氣（內部空氣）。 經濟部智慧財產局員工消費合作社印製 一吹風機7設置於空氣調節箱2中，在切換匣5之下 游空氣方。吹風機7由離心風扇7 a構成，用以產生朝向 客箱之空氣流，一馬達7 b用以驅動離心風扇7 a ，及一 蝸形殻7 c整合於空氣調節箱2。離心風扇7 a置於蝸形 殼7 c內。施加於馬達7 b上之電壓（吹風機控制電壓） 由一吹風機驅動電路8控制。 一蒸發器（冷卻熱交換器）1 1置於空氣調節箱2中 ，在吹風機7之下游空氣方，以關閉所有空氣通道2 a ° 蒸發器1 1爲一冷卻熱交換器，使用冷凍劑循環系統R之 低壓冷凍劑之蒸發潛熱，冷卻通過其中之空氣並去濕。 冷凍劑循環系統R包含一壓縮器1 2 ’由引擎E之動 -9- 本紙張尺度適用中.國國家標準（CNS ) A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 587030 A 7 B7 五、發明説明（7 ) 力通過電螺管離合器1 2 a驅動。自壓縮器1 2放出之高 壓冷凍劑由一冷凝器1 3冷卻及凝結。自冷結器1 3流出 之冷凍劑在一接收器（氣液分離器）14中分離爲氣體冷 凍劑及液體冷凍劑，及液體冷凍劑儲存於接收器1 4中。 自接收器1 4流出之高壓冷凍劑由一膨脹閥（解壓縮裝置 )1 5解壓縮並膨脹，並變爲低壓氣液體冷凍劑。自膨脹 閥1 5出來之低壓冷凍劑流進蒸發器1 1中，並由吸收流 進空氣調節箱2中之空氣之熱蒸發。 壓縮器1 2之電螺管離合器1 2 a之激勵由一壓縮器 驅動電路1 6中斷，從而執行壓縮器1 2之啓/閉控制。 如此，用於空氣冷卻及去濕之蒸發器1 1由壓縮器丄2之 啓/閉控制控制啓/閉，從而調整自蒸發器1 1吹出之空 氣之溫度T e (蒸發器空氣溫度）。在此實施例中，空氣 調節單位1不設置加熱單位，諸如加熱核心，及溫度調整 裝置，諸如空氣混合門。故此，蒸發器1 1之溫度T e由 使用壓縮器驅動電路1 6，控制電螺管離合器1 2 a之操 作調整，俾具有預定溫度之調節之空氣可吹進客箱中。 出口開口，諸如除霜器空氣開口2 1 ，一面空氣開口 1 2，及一足空氣開口 2 3設置於空氣調節箱2中，在最 下游方。調節之空氣自除霜空氣開口 2 1吹向擋風玻璃之 內表面’自面空氣開口 2 2吹向乘客之面區域（上半身） ’及自足空热開口 2 3吹向乘客之足區域。一除霜門2 4 ，一面門2 5 ，及一足門2 6以可轉動之方式設置於空氣 調節箱2中，在出口開口 2 1 ，22，23之上游空氣方 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X297公釐） (請先閱讀背面之注意事項再填寫本頁)587030 A7 ___ B7 V. Description of the invention (e) u 2 7: Bypass channel 2 7 a: Air outlet (please read the precautions on the back before filling this page) 2 8: Bypass door 3 0: Air conditioning operation panel 3 1: Air conditioning switch 3 2: Air blow-in volume switch 3 3: Air mode selection switch 3 4: Air outlet mode selection switch 3 5: Temperature setting switch 3 6: Automatic switch 3 7: Internal air temperature sensor 3 8: Outside air temperature sensor 3 9: Solar radiation sensor 4 0: Evaporator temperature sensor is better. Detailed description of the implementation Example printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs A preferred embodiment of the invention. In the air conditioning unit (vehicle air conditioner) 1 shown in Fig. 1, no heating function is provided, and only a cooling function is provided. The air conditioning unit 1 is an automatic air conditioner for automatically controlling the temperature of the air to be blown into the passenger box, a switching operation of the air outlet mode, an air blowing amount, and the like. In this embodiment, the air-conditioning unit 1 performs an air-conditioning operation of a passenger compartment of the vehicle, and includes a driving engine (engine) E for driving the vehicle. The air conditioning unit 1 is placed in the collision plate P (Figure 2), at the front of the vehicle in the passenger compartment, and is air-conditioned. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -8- 587030 A7 1 —_B7 V. Description of the Invention (β) 〇 Controller (Air Conditioning ECU) 1 〇 Control. (Please read the precautions on the back before filling out this page.) The air conditioning unit 1 contains one of the air conditioning boxes 2 made of resin. The air conditioning box 2 defines an air passage 2 a through which conditioned air flows to the passenger box. An internal / external air switching box (switching box) 5 is provided in the air conditioning box 2 at the most upstream side. An outside air suction port 3 and an inside air suction port 4 are provided in the switching E 5 and an inside / outside air switching door (switching door) 5 a is rotatably fixed to the switching box 5. The switching door 5a is driven by a servo motor (driving device) 6 to switch one of the outside air introduction mode and the inside air introduction mode. In the outside air introduction mode, the outside air (outside air) is introduced from the outside air suction port 3. In the inside air introduction mode, the inside air (inside air) is introduced from the inside air inlet 4. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. A hair dryer 7 is installed in the air conditioning box 2 and swims under the switch box 5. The blower 7 is composed of a centrifugal fan 7 a for generating an air flow toward the passenger box, a motor 7 b is used to drive the centrifugal fan 7 a, and a volute 7 c is integrated in the air conditioning box 2. The centrifugal fan 7a is placed in the volute 7c. The voltage (blower control voltage) applied to the motor 7 b is controlled by a blower drive circuit 8. An evaporator (cooling heat exchanger) 1 1 is placed in the air conditioning box 2 and the air is downstream of the blower 7 to close all air channels 2 a ° The evaporator 1 1 is a cooling heat exchanger, which uses a refrigerant cycle Latent heat of evaporation of the low-pressure refrigerant of system R cools the air passing through it and dehumidifies it. Refrigerant circulation system R contains a compressor 1 2 'moved by engine E-9- This paper size is applicable. National Standard (CNS) A4 specification (210 X 297 mm) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs System 587030 A 7 B7 V. Description of the invention (7) The force is driven by the electric solenoid clutch 1 2 a. The high-pressure refrigerant discharged from the compressor 12 is cooled and condensed by a condenser 13. The refrigerant flowing from the cold junction device 13 is separated into a gas refrigerant and a liquid refrigerant in a receiver (gas-liquid separator) 14 and the liquid refrigerant is stored in the receiver 14. The high-pressure refrigerant flowing out of the receiver 14 is decompressed and expanded by an expansion valve (decompression device) 15 and becomes a low-pressure gas-liquid refrigerant. The low-pressure refrigerant from the expansion valve 15 flows into the evaporator 11 and is evaporated by the heat absorbed by the air flowing into the air conditioning box 2. The excitation of the electric solenoid clutch 12a of the compressor 12 is interrupted by a compressor driving circuit 16 to perform the opening / closing control of the compressor 12. In this way, the evaporator 11 for air cooling and dehumidification is controlled to be opened / closed by the on / off control of the compressor 丄 2, thereby adjusting the temperature T e (evaporator air temperature) of the air blown from the evaporator 11. In this embodiment, the air conditioning unit 1 is not provided with a heating unit, such as a heating core, and a temperature adjustment device, such as an air mixing door. Therefore, the temperature T e of the evaporator 11 is adjusted by using the compressor drive circuit 16 to control the operation of the electric solenoid clutch 12 a, and the adjusted air having a predetermined temperature can be blown into the passenger compartment. Outlet openings, such as the defroster air opening 2 1, one side air opening 1 2, and one foot air opening 2 3 are provided in the air conditioning box 2 at the most downstream side. The conditioned air is blown from the defrosting air opening 2 1 to the inner surface of the windshield 'from the front air opening 2 2 to the passenger's face area (upper body)' and the self-contained air-heat opening 2 3 to the passenger's foot area. A defrosting door 2 4, a side door 2 5, and a foot door 2 6 are rotatably provided in the air conditioning box 2. The upstream air at the exit openings 2 1, 22, and 23 is based on Chinese paper standards. (CNS) A4 size (210 X297 mm) (Please read the precautions on the back before filling this page)
-10- 587030 A7 _____ B7 五、發明説明（Q ) (請先閱讀背面之注意事項再填寫本頁) ’以打開及關閉出口開口 2 1 - 2 3。此等門2 4 - 2 6 由一公共伺服馬達（驅動裝置）5 .0驅動，從而設定面模 式，雙高度（B / L )模式，及除霜模式之任一，作爲空 氣出口模式。 在面模式中，由僅打開面空氣開口 2 2 ，調節之空氣 吹至乘客之面方。在B/L模式，由打開面空氣開口 2 2 及足空氣開口 23，調節之空氣吹至乘客之面及足方。在 除霜模式，由僅打開除霜空氣開口 2 1 ，調節之空氣吹向 擋風玻璃之內表面。 經濟部智慈財產局員工消費合作社印製 另一方面，如顯示於圖2，一旁通通道2 7設置於蒸 發器1 1之上游空氣方位置，俾空氣可經由旁通通道2 7 直接流向客箱，同時繞過蒸發器1 1及出口開口 2 1 -2 3。如顯示於圖2，旁通通道2 7具有一空氣出口 2 7 a在旁通通道2 7之下游端。旁通通道2 7之空氣出 口 2 7 a向車體方在客箱之下方位置處之一撞板D打開。 撞板D爲一分隔板，用以分隔客箱及引擎箱。由板門構成 之一旁通門2 8以可轉動之方式設置於旁通通道2 7中， 以打開及關閉旁通通道2 7。旁通門2 8由圖1所示之一 伺服馬達2 9驅動。 空氣調節E CU 1 〇包含一微電腦，由一中央處理單 位（C P U )，一僅讀記憶器（R〇Μ )，一隨機存取記 憶器（R A Μ )等構成。空氣調節E C U 1 〇根據R〇Μ 中所儲存之控制程式，控制伺服馬達6，2 9，5 0之激 勵（通/斷控制），經由吹風機驅動電路8控制馬達7 b 本紙張尺度適用中國國家標準（CNS) A4規格（210x297公~ 587030 A7 B7 五、發明説明（9 ) (請先閲讀背面之注意事項再填寫本頁) ，及經由壓縮機驅動電路1 6控制電螺管離合器1 2 a之 激勵（通/斷控制）。操作信號自空氣調節操作板3 0輸 入至空氣調節E CU 1 0 ’此板置於客箱中駕駛座之前方 處。一空氣調節開關3 1 ，一空氣流量開關3 2 ，一內部 /外部空氣模式選擇開關3 3 ’ 一空氣出口模式選擇開關 3 4，一溫度設定開關3 5，一自動開關3 6等設置於空 氣調節操作板3 0上。明確言之’空氣調節開關3 1用以 輸出一操作命令信號給壓縮器1 2，及空氣流量開關3 2 用以手動設定由吹風機7吹入之空氣量。內部/外部空氣 模式選擇開關3 3用以手動設定內部空氣引入模式及外部 空氣引入模式之一。空氣出口模式選擇開關3 4用以手動 設定除霜模式，面模式，及B / L模式之一。溫度設定開 關3 5用以設定客箱中所需之溫度（設定溫度）’及自動 開關3 6用以設定車輛空氣調節器之空氣調節操作之自動 控制（A U T 0 )。 經濟部智慧財產局P'工消費合作社印製-10- 587030 A7 _____ B7 V. Description of Invention (Q) (Please read the precautions on the back before filling this page) ’to open and close the exit opening 2 1-2 3. These doors 2 4-2 6 are driven by a common servo motor (drive device) 5.0 to set any of the surface mode, double height (B / L) mode, and defrost mode as the air outlet mode. In the surface mode, only the surface air opening 2 2 is opened, and the conditioned air is blown to the surface of the passenger. In the B / L mode, by opening the surface air opening 2 2 and the foot air opening 23, the conditioned air is blown to the side of the passenger and the foot. In the defrost mode, only the defrosting air opening 2 1 is opened, and the conditioned air is blown to the inner surface of the windshield. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. On the other hand, as shown in Figure 2, a bypass channel 2 7 is set at the upstream side of the evaporator 1 1, and the radon air can flow directly to the customer through the bypass channel 2 7 Box, bypass the evaporator 1 1 and the outlet opening 2 1-2 3 at the same time. As shown in FIG. 2, the bypass passage 27 has an air outlet 2 7 a at the downstream end of the bypass passage 27. The air outlet 2 7 a of the bypass passage 2 7 is opened to one of the collision boards D at the lower position of the trunk of the vehicle body. The collision plate D is a partition plate for separating the passenger box and the engine box. One of the bypass doors 28 is formed by a plate door in a rotatable manner in the bypass passage 27 to open and close the bypass passage 27. The bypass gate 28 is driven by a servo motor 29 shown in FIG. The air-conditioning E CU 100 includes a microcomputer, and is composed of a central processing unit (CPU), a read-only memory (ROM), a random access memory (RAM), and the like. The air-conditioning ECU 1 〇 controls the excitation (on / off control) of the servo motor 6, 29, 50 according to the control program stored in ROM, and controls the motor 7 through the blower drive circuit 8 b This paper size is applicable to China Standard (CNS) A4 specification (210x297 male ~ 587030 A7 B7 V. Description of invention (9) (Please read the precautions on the back before filling out this page), and control the solenoid solenoid via the compressor drive circuit 1 2 a Excitation (on / off control). The operation signal is input from the air-conditioning operation panel 3 0 to the air-conditioning E CU 1 0 'This board is placed in front of the driver's seat in the passenger compartment. An air-conditioning switch 3 1, an air flow Switches 3 2, an internal / external air mode selection switch 3 3 ′, an air outlet mode selection switch 3 4, a temperature setting switch 3 5, an automatic switch 3 6, etc. are provided on the air conditioning operation panel 30. To be clear 'The air conditioning switch 3 1 is used to output an operation command signal to the compressor 12 and the air flow switch 3 2 is used to manually set the amount of air blown by the blower 7. The internal / external air mode selection switch 3 3 is used to manually Set one of the internal air introduction mode and the external air introduction mode. The air outlet mode selection switch 3 4 is used to manually set one of the defrost mode, the surface mode, and the B / L mode. The temperature setting switch 3 5 is used to set the passenger compartment. The required temperature (set temperature) 'and automatic switch 36 are used to set the automatic control of the air conditioning operation of the vehicle air conditioner (AUT 0).
來自偵測器群，諸如內部空氣溫度感測器3 7，外部 空氣溫度感測器3 8，太陽輻射感測器3 9 ，蒸發器空氣 溫度感測器4 0等之偵測信號輸入至空氣調節E c U 1 0 之輸入端。內部空氣溫度感測器3 7偵測客箱中之空氣溫 度（內部空氣溫度）T r ，及外部空氣溫度感測器3 8偵 測客箱外部之空氣溫度（外部空氣溫度）T a m。太陽奉畐 射感測器3 9偵測日光照射於客箱中之輻射量（太陽_ Μ 量）T s。蒸發器空氣溫度感測器4 0偵測自蒸發器1 1 直接吹入之空氣之溫度（蒸發器溫度）T e。在此胃^ W 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -12- 587030 A7 ______B7_ 五、發明説明（1〇) (請先閲讀背面之注意事項再填寫本頁) 中，由於空氣調節單立1並不設置任何加熱單位，諸如加 熱核心，故蒸發器空氣溫度T e與欲自空氣調節箱2之出 口開口吹入客箱中之空氣之溫度相同。 其次，現說明此實施例之空氣調節單位1之操作。首 先，當引擎E之點火開關（未顯示）接通，及電源供應至 空氣調節E C U 1 0中時，開始圖3之一控制程式。在步 驟S 1 ，發起資料處理記憶器（RAM)中所儲存之內容 等。在步驟S 2，空氣調節E C U 1 0自空氣調節操作板 3 0上之開關3 1 - 3 6讀出開關信號，及自感測器3 7 一 4 0讀出偵測信號。 在步驟S 3，根據以下公式（1 )，計算目標空氣溫 度丁 A〇。目標空氣溫度TAO爲維持客箱中之空氣溫度 於由乘客設疋之一*設疋之溫度T s e t上所需之空氣溫度 〇 TAO = KsetxTset-KrxTr-KamxTam-KsxTs-C..... (1) 經濟部智慈財產局資工消費合作社印製 其中，Tset表示由溫度設定開關35所設定之設定溫度 ，Tr表示由內部空氣溫度感測器37所偵測之內部空氣溫度 ，Tam表示由外部空氣溫度感測器3 8所偵測之外部空氣溫 度，及Ts表示由太陽輻射感測器39所偵測之太陽輻射量 。而且，^^6〖，〖1.，1^111，及1(8分別表示溫度設定增益，內部溫 度增益，外部溫度增益，及太陽輻射增益。C表示改正常數 〇 在步驟S 4，決定吹風機控制電壓（施加於吹風機馬 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -13 - 587030 A7 _____B7_ 五、發明説明（彳彳） (請先閱讀背面之注意事項再填寫本頁) 達7b上之電壓）。明確言之，在自動開關36接通之自 動控制中，吹風機控制電壓根據目標空氣溫度T A 0決定 。例如，當目標空氣溫度T A〇在低於一第一預定溫度之 一低溫度區域中時，吹風機控制電壓設定於最大電壓，及 吹風機7之轉動速度（吹風量）設定於最高速度。當目標 空氣溫度T A 0增加至高於第一預定溫度時，吹風機控制 電壓逐漸且連續降低。然後，當T A 0進一步增加至高於 第一預定溫度之一第二預定溫度時，吹風機控制電壓降至 最低電壓。其後，即使當T A 0增加時，吹風機控制電壓 維持於該最低電壓。當乘客使用空氣吹入量開關3 2手動 設定吹風機7之空氣吹入量時，吹風機控制電壓依據空氣 吹入量開關3 2所設定之空氣量決定。 經濟部智慈財產局員工消費合作社印製 在步驟S 5 ，根據自動控制中之目標空氣溫度T A〇 ，決定空氣引入模式。例如，內部空氣引入模式設定於低 於一預定溫度之一低溫度區域中，及外部空氣引入模式設 定於高於該預定溫度之一溫度區域中。當乘客操作內部/ 外部空氣模式選擇開關3 3時，依此開關操作設定空氣引 入模式。 在步驟S 6，決定空氣出口模式。明確言之，根據自 動控制中之目標空氣溫度T A 0，決定空氣出口模式。例 如，當T A 0在低於一設定溫度之一低溫度區域中時，決 定B/L模式。當TAO增加至高於該設定溫度時，決定 面模式。在面模式中，僅打開面開口 2 2。當乘客操作空 氣出口模式設定開關3 4時，空氣出口模式依據此手動開 本紙張尺度適用中國國家標準（CNS ) A4規格"（210X 297公着) 一 -14 - 587030 A7 B7 五、發明説明（12) 關操作設疋。僅由客箱中之乘客之手動操作，設定除霜模 式。 (請先閲讀背面之注意事項再填寫本頁) 在步驟S 7 ’決定壓縮器1 2之通/斷控制，即是， 決定電螺管離合器1 2 a是否連接至壓縮器1 2。明確言 之’根據目標蒸發器空氣溫度T E 0及由蒸發器溫度感測 器4 0所偵得之實際蒸發器空氣溫度τ e間之溫度差，決 疋施加於電螺管離合器1 2 a上之電壓。更明確言之，依 據目標空氣溫度Τ A0，決定目標蒸發器空氣溫度τ E〇 。例如，當目標空氣溫度T A 0在低於一設定溫度之一低 溫度區域中時，維持Τ E〇於結霜限制溫度（例如3 °C ) ’俾可防止蒸發器1 1結霜。當目標空氣溫度Τ A 0增加 至高於該設定溫度時，TEO溫度與目標空氣溫度ΤΑ〇 之增加成比例增加。 而且，在此實施例中，設定Τ Ε 0及（Τ Ε〇+ 1 °C )作爲實際蒸發器空氣溫度T e之二目標，以防止壓縮器 經濟部智慧財產局員工消費合作社印製 1 2之操作拖延。當Te增加高於（TEO+lt)時， 壓縮器1 2開動（通）。當實際蒸發空氣溫度T e降低至 低於Τ E〇時，壓縮機1 2停止（斷）。 其次，在步驟S 8，決定旁通門2 8之啓/閉操作（ 切換操作），以打開及關閉旁通通道2 7。在此實施例中 ，當在步驟S 6設定除霜模式爲空氣出口模式時，及當內 部溫度（即內部空氣溫度Τ I* )低於圖4所示之第一預定 溫度Τ 1 (例如，2 0 t )時，旁通通道2 7由旁通門 2 8打開。當外部空氣溫度T a m在除霜模式中低時，冷 本紙張尺度適用中國國家檩準（CNS ) A4規格（210X29*7公釐） -15- 587030 A7 ___B7 五、發明説明（13) (請先閱讀背面之注意事項再填寫本頁) 卻負載小，及客箱之溫度變爲低於圖4所示之第一預定溫 度T 1。在此情形，當執行除霜模式（除霜操作）時，客 箱中之乘客有不愉快之冷卻感覺。 故此，在此實施例中，當與內部空氣溫度T r相對應 之客箱內之溫度低於第一預定溫度T 1 (例如2 0 °C )時 ，控制旁通門2 8，以打開旁通通道2 7。當客箱中之溫 度T r·降低時，旁通門2 8之打開程度繼續增加。其後， 當客箱中之溫度T r降低至較第一預定溫度T 1爲低之一 第二預定溫度T 2 (例如1 5 °C )時，控制旁通門2 8， 以完全打開旁通通道2 7。 其次，在步驟S9，在步驟S4 - S8中所決定之至 少控制信號輸出至伺服馬達6，2 9，5 0，吹風機驅動 電路8，壓縮器驅動電路1 6等，從而控制開關門5 a ， 吹風機7，門24 - 26，旁通門28，電螺管離合器 1 2 a等。其後，控制程式回至步驟s 2。 經濟部智慧財產局員工消費合作社印製 依據本發明，當空氣出口模式爲除霜模式（即除霜操 作）時，及當客箱中之溫度低於第一預定溫度T 1時，旁 通門2 8打開旁通通道2 7。故此，在雙高度模式或面模 式中’除除霜模式外，控制旁通門2 8，以關閉旁通通道 2 7。而且，在除霜模式中，當客箱中之溫度高於第一預 定溫度T1時，控制旁通門28，以關閉旁通通道27。 如此’在此情形，自吹風機吹入之所有空氣通過蒸發器 1 1 ，如由圖2之實線A所示，俾在蒸發器1 1中冷卻， 並經由至少一出口開口吹進客箱中。故此，可獲得最大冷 本紙張尺度適^1中國國家標準（€叫八4規格（21(^ 297公釐) "" -16- 587030 A7 _______B7 五、發明説明（14) 卻容量。 當空氣出口模式在除霜模式時，及當客箱內之溫度低 於第一預定溫度T 1時，旁通門2 8打開旁通通道2 7。 在客箱內之溫度低於第一預定溫度T 1後，當客箱內之溫 度降低時，加大打開旁通通道2 7之旁通門2 8之打開程 度。其後，當客箱內之溫度降低至低於第一預定溫度T 1 之第二預定溫度T 2時，使旁通門2 8之打開程度最大。 故此，由吹風機7吹入之空氣之一部份通過旁通通道2 7 ’如由圖2中之虛線B所示，且自空氣出口 2 7 a直接吹 進客箱中，同時繞過蒸發器1 1及出口開口 2 1 — 2 3。 如此，減少通過蒸發器1 1之空氣量。 結果，即使當在低冷卻負載中，諸如在外部空氣溫度 低之情形中設定除霜模式時，可防止客箱之溫度由自旁通 通道2 7吹進之未冷卻之空氣過度降低。故此，客箱中之 乘客不會有過度冷卻之感覺。 故此，即使在低外部空氣溫度中，當在除霜模式中執 行擋風玻璃之除霜操作時，在蒸發器1 1中冷卻及除濕之 低濕度空氣自除霜開口 2 1吹向擋風玻璃，俾可提高檔風 玻璃之除霜性能。同時，可防止客箱中之溫度由自·旁通S 道2 7吹來之未冷卻之空氣大幅降低，且可提供客胃 乘客舒適之冷卻。 而且，設有旁通通道27之空氣出口 27a ’俾未冷 卻之空氣自空氣出口 2 7 a吹向客箱中之下部。故此’乘 客之舒適感覺不受該未冷卻之空氣影響。即是’客箱中β 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） (請先閱讀背面之注意事項再填寫本頁) ·裝. 訂 經濟部智慧財產局員工消費合作社印製 -17- 經濟部智慈財產局員工消費合作社印製 587030 A7 B7 ------—---*---- 五、發明説明（15) 乘客之面部容易感受較之乘客之足部爲暖之感覺。故此， 如具有高溫度之未冷卻空氣直接吹向客箱之乘客之面方， 乘客容易有不舒服感覺。依據本發明之此實施例，由於未 冷之空氣吹向乘客之足方，故客箱中之乘客無不舒適感覺 。而且，未冷卻之空氣不除濕。故此，由未冷卻之空氣吹 向客箱下部，可限制擋風玻璃由未冷卻之空氣結霜。 在圖2所示之例中，旁通通道2 7之空氣出口 2 7 a 向車輛之撞板D打開。在此情形，自空氣出口 2 7 a吹出 之未冷卻之空氣並不直接接觸乘客之足部。故此，可限制 自空氣出口 2 7 a吹出之未冷卻之空氣所引起之溫度差感 覺。在此，旁通通道2 7之空氣出口 2 7 a可向儀表板p 打開。即使在此情形，可獲得同樣效果。 當來自蒸發器1 1之冷卻空氣及來自旁通通道2 7之 未冷卻空氣混合，然後空氣吹進客箱中，可能產生凝結， 且由於凝結，霜狀空氣吹進客箱中。依據此實施例，來自 旁通通道2 7之未冷卻空氣直接吹進客箱1 1中，而不與 來自蒸發器1 1之冷卻控氣混合。故此，可防止霜狀空氣 吹進客箱中。 而且，依據此實施例，旁通門2 8之打開程度隨客箱 之溫度降低而逐漸增加。故此，吹向擋風玻璃之空氣量並 不由於旁通通道2 7之打開而迅速減少。故此，可防止由 於迅速減少自除霜開口 2 1吹入之空氣量引起擋風玻璃之 除霜性能降低。 雖已以較宜實施例，並參考附圖，詳細說明本發明， 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） ί請先閲讀背面之注意事^再填寫本頁jDetection signals from detector groups such as the internal air temperature sensor 37, the external air temperature sensor 38, the solar radiation sensor 3 9 and the evaporator air temperature sensor 40 are input to the air Adjust the input of E c U 1 0. The internal air temperature sensor 37 detects the air temperature (internal air temperature) T r in the passenger box, and the external air temperature sensor 38 detects the air temperature (outside air temperature) T a m outside the passenger box. The Sun Fengxun radiation sensor 3 9 detects the amount of solar radiation (the amount of solar_M) T s in the passenger box. The evaporator air temperature sensor 40 detects the temperature (evaporator temperature) T e of the air directly blown from the evaporator 1 1. Here ^ W This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) -12- 587030 A7 ______B7_ 5. Description of the invention (1〇) (Please read the precautions on the back before filling this page) Since the air conditioning unit 1 does not have any heating units such as a heating core, the temperature of the evaporator air T e is the same as the temperature of the air to be blown into the passenger box from the outlet opening of the air conditioning box 2. Next, the operation of the air-conditioning unit 1 of this embodiment will now be described. First, when the ignition switch (not shown) of the engine E is turned on, and the power is supplied to the air conditioning E C U 10, a control program shown in FIG. 3 is started. In step S1, the contents stored in the data processing memory (RAM) and the like are initiated. In step S2, the air conditioning E C U 1 0 reads the switch signal from the switches 3 1-3 6 on the air conditioning operation panel 30, and reads the detection signal from the sensors 3 7-40. In step S3, the target air temperature D A0 is calculated according to the following formula (1). The target air temperature TAO is the air temperature required to maintain the air temperature in the passenger box at one of the passenger's settings * set temperature T set. TAO = KsetxTset-KrxTr-KamxTam-KsxTs-C ... 1) Printed by the Consumer Goods Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, where Tset represents the set temperature set by the temperature setting switch 35, Tr represents the internal air temperature detected by the internal air temperature sensor 37, and Tam indicates The outside air temperature detected by the outside air temperature sensor 38, and Ts represents the amount of solar radiation detected by the solar radiation sensor 39. Moreover, ^^ 6〗, 〖1., 1 ^ 111, and 1 (8 represent temperature setting gain, internal temperature gain, external temperature gain, and solar radiation gain, respectively. C represents a normal number. In step S4, it is determined Hairdryer control voltage (applied to the hair dryer paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297mm) -13-587030 A7 _____B7_ V. Description of the invention (彳 彳) (Please read the precautions on the back before filling in this Page) up to the voltage of 7b). Specifically, in the automatic control when the automatic switch 36 is turned on, the blower control voltage is determined according to the target air temperature TA 0. For example, when the target air temperature TA 0 is lower than a first predetermined In one of the low temperature regions, the blower control voltage is set at the maximum voltage, and the rotation speed (air blow amount) of the blower 7 is set at the maximum speed. When the target air temperature TA 0 increases above the first predetermined temperature, the blower control voltage Gradually and continuously decrease. Then, when TA 0 is further increased to a second predetermined temperature higher than one of the first predetermined temperature, the blower control voltage is reduced to the maximum Low voltage. Thereafter, the blower control voltage is maintained at the lowest voltage even when TA 0 is increased. When the passenger manually sets the air blow-in amount of the blower 7 using the air blow-in amount switch 3 2, the blower control voltage is based on the air blow-in The amount of air set by the quantity switch 32 is determined. The employee consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints in step S5, and determines the air introduction mode according to the target air temperature TA0 in the automatic control. For example, the internal air introduction mode is set In a low temperature region lower than a predetermined temperature, and the outside air introduction mode is set in a temperature region higher than the predetermined temperature. When a passenger operates the internal / external air mode selection switch 3 3, the switch operation is set according to this switch Air introduction mode. In step S6, the air outlet mode is determined. Specifically, the air outlet mode is determined based on the target air temperature TA 0 in the automatic control. For example, when TA 0 is in a low temperature region that is lower than a set temperature In the middle mode, the B / L mode is determined. When TAO increases above the set temperature, the surface mode is determined. In the surface mode, Open the surface opening 2 2. When the passenger operates the air outlet mode setting switch 3 4, the air outlet mode is based on this manual. The paper size applies the Chinese National Standard (CNS) A4 specification " (210X 297) by -14-587030 A7 B7 V. Description of the invention (12) Close the operation settings. Only the passenger in the trunk can manually set the defrost mode. (Please read the precautions on the back before filling this page) At step S 7 'Determine compression The on / off control of the evaporator 12 is to determine whether the electric solenoid clutch 12a is connected to the compressor 12. To be specific, according to the target evaporator air temperature TE 0 and the evaporator temperature sensor 40 The detected temperature difference between the actual evaporator air temperature τ e depends on the voltage applied to the electric solenoid clutch 12 a. More specifically, the target evaporator air temperature τ E0 is determined based on the target air temperature T A0. For example, when the target air temperature T A 0 is in a low temperature region that is lower than a set temperature, maintaining T E0 at a frost-limiting temperature (for example, 3 ° C) ′ ′ may prevent the evaporator 11 from frosting. When the target air temperature T A 0 increases above the set temperature, the TEO temperature increases in proportion to the increase in the target air temperature T A0. Furthermore, in this embodiment, TE 0 and (TE E + 1 ° C) are set as the target of the actual evaporator air temperature T e to prevent the compressor from being printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics 1 2 The operation was delayed. When Te increases above (TEO + lt), the compressor 12 is activated (on). When the actual evaporated air temperature T e drops below T E0, the compressor 12 is stopped (off). Next, in step S8, the opening / closing operation (switching operation) of the bypass door 28 is decided to open and close the bypass channel 27. In this embodiment, when the defrost mode is set to the air outlet mode in step S6, and when the internal temperature (that is, the internal air temperature T I *) is lower than the first predetermined temperature T 1 (for example, 2 0), the bypass channel 27 is opened by the bypass door 28. When the outside air temperature Tam is low in the defrost mode, the standard of the cold paper is applicable to the Chinese National Standard (CNS) A4 (210X29 * 7 mm) -15- 587030 A7 ___B7 V. Description of the invention (13) (please Read the precautions on the back before filling in this page) However, the load is small, and the temperature of the passenger compartment becomes lower than the first predetermined temperature T 1 shown in FIG. 4. In this case, when the defrosting mode (defrosting operation) is performed, the passengers in the trunk have an unpleasant cooling feeling. Therefore, in this embodiment, when the temperature in the passenger box corresponding to the internal air temperature T r is lower than the first predetermined temperature T 1 (for example, 20 ° C), the bypass door 28 is controlled to open the bypass通 Channel 2 7. When the temperature T r · in the passenger compartment decreases, the degree of opening of the bypass door 28 continues to increase. Thereafter, when the temperature T r in the passenger compartment is lowered to a second predetermined temperature T 2 (for example, 15 ° C.) lower than the first predetermined temperature T 1, the bypass door 28 is controlled to fully open the bypass.通 Channel 2 7. Next, at step S9, at least the control signals determined in steps S4 to S8 are output to the servo motors 6, 29, 50, the blower drive circuit 8, the compressor drive circuit 16, etc., thereby controlling the opening and closing of the door 5a, Hair dryer 7, doors 24-26, bypass door 28, electric solenoid clutch 12a, etc. After that, the control program returns to step s2. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs according to the present invention, when the air outlet mode is the defrost mode (ie, the defrost operation), and when the temperature in the passenger compartment is lower than the first predetermined temperature T 1, the door is bypassed 2 8 Open the bypass channel 2 7. Therefore, in the double-height mode or the surface mode, in addition to the defrosting mode, the bypass door 28 is controlled to close the bypass channel 27. Moreover, in the defrosting mode, when the temperature in the passenger compartment is higher than the first predetermined temperature T1, the bypass door 28 is controlled to close the bypass passage 27. As such, in this case, all the air blown from the blower passes through the evaporator 1 1, as shown by the solid line A in FIG. 2, and the radon is cooled in the evaporator 11 and blown into the passenger box through at least one outlet opening. . Therefore, the maximum size of the cold paper can be obtained ^ 1 Chinese national standard (€ called 8 4 specifications (21 (^ 297 mm)) -16- 587030 A7 _______B7 V. Description of the invention (14) but the capacity. When the air outlet mode is in the defrosting mode, and when the temperature in the passenger compartment is lower than the first predetermined temperature T 1, the bypass door 2 8 opens the bypass passage 27. The temperature in the passenger compartment is lower than the first predetermined temperature. After T 1, when the temperature in the passenger compartment decreases, the degree of opening of the bypass door 2 8 of the bypass passage 27 is increased. Thereafter, when the temperature in the passenger compartment decreases below the first predetermined temperature T 1 At the second predetermined temperature T 2, the degree of opening of the bypass door 28 is maximized. Therefore, a part of the air blown in by the blower 7 passes through the bypass passage 2 7 ′ as shown by the dotted line B in FIG. 2. And blow directly into the passenger box from the air outlet 27a, while bypassing the evaporator 11 and the outlet openings 2 1-2 3. In this way, the amount of air passing through the evaporator 11 is reduced. As a result, even when the cooling is low Under load, such as when the defrost mode is set when the outside air temperature is low, the temperature of the passenger compartment can be prevented The uncooled air blown into the bypass passage 27 is excessively reduced. Therefore, passengers in the passenger compartment will not feel excessively cooled. Therefore, even in a low outside air temperature, when the windshield is executed in the defrost mode During the defrost operation, the low-humidity air cooled and dehumidified in the evaporator 11 is blown to the windshield from the defrost opening 21, which can improve the defrost performance of the windshield. At the same time, it can prevent the The temperature is greatly reduced by the uncooled air blown from the bypass S channel 27, and it can provide comfortable cooling for the passengers. Also, the air outlet 27a of the bypass channel 27 is provided. The outlet 2 7a is blown to the lower and middle part of the trunk. Therefore, 'the passenger's comfort is not affected by the uncooled air. That is,' the trunk's β This paper size applies to the Chinese National Standard (CNS) A4 specification (210 × 297 mm) ) (Please read the precautions on the back before filling out this page) · Packing. Order printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -17- printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 587030 A7 B7 ----- -----*---- Fives (15) The passenger ’s face is easier to feel warm than the passenger ’s feet. Therefore, if uncooled air with high temperature is directly blown to the passenger ’s face, the passenger is prone to feel uncomfortable. Basis In this embodiment of the present invention, since uncooled air is blown to the passengers' feet, there is no discomfort in the passengers in the trunk. Moreover, the uncooled air is not dehumidified. Therefore, the uncooled air is blown to the trunk. In the lower part, it is possible to restrict the windshield from being frosted by uncooled air. In the example shown in FIG. 2, the air outlet 27 a of the bypass passage 27 is opened to the collision plate D of the vehicle. In this case, the uncooled air blown from the air outlet 27a does not directly contact the passengers' feet. Therefore, the temperature difference sensation caused by the uncooled air blown from the air outlet 27a can be restricted. Here, the air outlet 2 7 a of the bypass channel 27 can be opened to the instrument panel p. Even in this case, the same effect can be obtained. When the cooling air from the evaporator 11 and the uncooled air from the bypass channel 27 are mixed, and then the air is blown into the passenger box, condensation may occur, and due to the condensation, frosty air is blown into the passenger box. According to this embodiment, the uncooled air from the bypass passage 27 is directly blown into the passenger box 11 without being mixed with the cooling control gas from the evaporator 11. This prevents frosty air from blowing into the passenger compartment. Furthermore, according to this embodiment, the degree of opening of the bypass door 28 gradually increases as the temperature of the passenger box decreases. Therefore, the amount of air blown to the windshield does not decrease rapidly due to the opening of the bypass passage 27. Therefore, it is possible to prevent the defrost performance of the windshield from being reduced due to the rapid reduction of the amount of air blown from the defrost opening 21. Although the present invention has been described in more detail with reference to the preferred embodiments, the paper size is applicable to the Chinese National Standard (CNS) A4 (210X 297 mm). Please read the notes on the back ^ before filling in this page.
587030 A7 __'_B7_ 五、發明説明（16) 但應注意精於本藝之人士知道各種更改及修改。 (請先閲讀背面之注意事項再填寫本頁) 例如，在上述實施例中，在除霜模式中，僅當客箱之 溫度T r (內部空氣溫度）低於第一預定溫度丁 1時，旁 通門2 8方打開旁通通道2 7。然而，即使在雙高度模式 或面模式中，當客箱之溫度低於第一預定溫度T 1時，可 控制旁通門2 8，以打開旁通通道2 7。 在上述實施例中，旁通門2 8之打開程度隨客箱之溫 度T r之降低而逐漸增加。然而，旁通門2 8可一次完全 打開旁通通道2 7。在此情形，可調整旁通通道2 7之壓 力損失（通道斷面積），俾調整通過旁通通道2 7之空氣 量。 經濟部智慧財產局員工消費合作社印製 在上述本發明實施例中，根據客箱之溫度T I* ,調整 旁通門2 8之打開程度（打開狀態）。客箱內溫度Τ r之 降低由冷卻負載之減少所引起，且冷卻負載與外部空氣溫 度T am ’目標空氣溫度T a 〇等有關。故此，可使用外 部空氣溫度T am或/及目標空氣溫度TAO ,決定旁通 門2 8之打開程度（打開/關閉狀態）。即是，當外部空 氣溫度T a m低於一預定溫度時，或當目標空氣溫度 T A〇尚於一*預疋溫度時。 在上述實施例中’作爲空氣出口模式，設定雙高度模 式，面模式，及除霜模式。然而，可另設定用以打開除霜 開口 2 1及足開口 2 3二者之足/除霜模式，作爲空氣出 口模式。 在上述貫施例中’ s當決疋擋風玻璃容易結霜時，可 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇><297公釐） -19- 587030 A7 B7 五、發明説明（17) 設定外部空氣引進模式。在此情形，可由在蒸發器1 1中 冷卻具有較內部空氣爲低濕度之外部空氣，提高除霜性能 。而且，面空氣開口 2 2及足空氣開口 2 3可由一面/足 開關門打開及關閉。 應明瞭此等更改及修改應在後附申請專利範圍所界定 之本發明之範圍內。587030 A7 __'_ B7_ V. Description of the invention (16) However, it should be noted that those skilled in the art are aware of various changes and modifications. (Please read the notes on the back before filling this page) For example, in the above embodiment, in the defrost mode, only when the temperature T r (internal air temperature) of the passenger compartment is lower than the first predetermined temperature D1, The bypass door 2 8 opens the bypass channel 2 7. However, even in the double-height mode or the surface mode, when the temperature of the passenger compartment is lower than the first predetermined temperature T1, the bypass door 28 can be controlled to open the bypass passage 27. In the above embodiment, the degree of opening of the bypass door 28 gradually increases as the temperature T r of the passenger box decreases. However, the bypass door 2 8 can fully open the bypass channel 2 7 at a time. In this case, the pressure loss (channel cross-sectional area) of the bypass channel 27 can be adjusted, and the amount of air passing through the bypass channel 27 can be adjusted. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In the above embodiment of the present invention, the opening degree (open state) of the bypass door 28 is adjusted according to the temperature T I * of the passenger box. The decrease in the temperature T r in the passenger compartment is caused by the decrease in the cooling load, and the cooling load is related to the outside air temperature T am ′ target air temperature T a 〇 and the like. Therefore, the external air temperature Tam or / and the target air temperature TAO can be used to determine the opening degree (open / closed state) of the bypass door 28. That is, when the outside air temperature T a m is lower than a predetermined temperature, or when the target air temperature T A0 is still less than a * preliminary temperature. In the above embodiment, as the air outlet mode, the double height mode, the surface mode, and the defrost mode are set. However, a foot / defrosting mode for opening both the defrost opening 21 and the foot opening 2 3 may be separately set as the air outlet mode. In the above-mentioned embodiment, when the windshield glass of Frost is easy to frost, the paper size can apply the Chinese National Standard (CNS) A4 specification (21〇 > < 297 mm) -19- 587030 A7 B7 5 Explanation of the invention (17) Set the outside air introduction mode. In this case, the outside air having a lower humidity than the inside air can be cooled in the evaporator 11 to improve the defrosting performance. Moreover, the surface air opening 2 2 and the foot air opening 2 3 can be opened and closed by a side / foot opening door. It should be understood that such changes and modifications are within the scope of the invention as defined by the scope of the appended patents.
1 Ϊ I I n · (請先閱讀背面之注意事項再填寫本頁) •裝. 訂 經濟部智慧財產局員工消費合作社印製 -20 - ^紙張尺^5^ 酬家標準（CNS ) A4規格（210X297公釐)1 Ϊ II n · (Please read the precautions on the back before filling out this page) • Packing. Order printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -20-^ paper rule ^ 5 ^ Compensator Standard (CNS) A4 Specification ( 210X297 mm)