A passenger car air conditioning evaporator with supercooling function

Abstract

The present invention relates to the technical field of bus air conditioners, and in particular to a bus air conditioner evaporator with a supercooling function, comprising a fixing plate, a heat exchange mechanism is installed on the top of the fixing plate, the heat exchange mechanism comprises a water tank fixing frame, two condensation water tanks are fixed by bolts in the middle of the inner sides of the two water tank fixing frames, ventilation windows are penetrated on both sides of the condensation water tanks, and wind hoods are welded on the opposite ends of the two condensation water tanks. In this scheme, condensation water generated by the condensation tube is collected by the heat exchange mechanism, and the condensation water replaces the heat dissipation fan to dissipate the Freon gas pressurized and heated by the air compressor in the air-conditioning system, so that the Freon gas can be dissipated and liquefied, and the increase in the occupied area caused by the heat dissipation fan can be avoided. At the same time, the investment in production cost can be further saved, and the continuously generated condensation water can continuously replace the water in the condensation water tank, and the water in the condensation water tank can be continuously cooled.

Description

Technical Field

[0001] The invention relates to the technical field of bus air conditioners, in particular to a bus air conditioner evaporator with a supercooling function. Background Art

[0002] In existing bus air-conditioning systems, increasing the supercooling of liquid refrigerant is one of the effective means to improve cooling capacity and energy efficiency. Traditional methods include increasing the heat exchange area of ​​the condenser or using an intercooler to achieve heat exchange between high-temperature and high-pressure liquid refrigerant and low-temperature and low-pressure return air from the compressor. However, the former is limited by the internal space of the bus, while the latter increases system complexity and cost.

[0003] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Summary of the invention

[0004] In order to solve the above-mentioned problem, the present invention provides a bus air-conditioning evaporator with a supercooling function.

[0005] The present invention provides a passenger car air-conditioning evaporator with a supercooling function, comprising a fixing plate, a heat exchange mechanism being installed on the top of the fixing plate;

[0006] The heat exchange mechanism comprises two water tank fixing frames fixed symmetrically to the top of the fixing plate;

[0007] Condensation water tanks are fixed by bolts in the middle of the inner sides of the two water tank fixing frames, ventilation windows are provided on both sides of the condensation water tanks, wind shields are welded to the opposite ends of the two condensation water tanks, an air outlet pipe is connected to the middle of one end of one wind shield, and a connecting pipe is connected to the middle of one end of the other wind shield, the two condensation water tanks are connected to condensation water guide pipes on one side of the wind shield, and overflow pipes are connected to the middle of the opposite ends of the two condensation water tanks;

[0008] A closing plate is fixed to the outside of one of the water tank fixing frames by bolts, and an air inlet pipe is connected to the middle of one end of the closing plate away from the condensation water guide pipe. A shielding cover is fixed to the top of the fixing plate by bolts on the outside of the two water tank fixing frames, and connecting windows are penetrated through the opposite ends of the shielding covers. An air filling box is welded to the inside of one of the connecting windows, and an air outlet is opened at the bottom of the outside of one end of the air filling box. A water retaining inclined plate is welded to the inside of the air filling box, and the air inlet end of the air inlet pipe is connected to one end of the air filling box close to the water tank fixing frame, and condensation pipes are respectively arranged inside the two condensation water tanks.

[0009] Preferably, a circulating refrigeration mechanism is installed in the middle of the top of the fixed plate;

[0010] The circulating refrigeration mechanism comprises a blower;

[0011] A blower is installed in the middle of the top of the fixed plate through the base, the air outlet end of the blower is connected to a blower pipe, the air outlet end of the blower pipe is connected to a water storage tank, the inner side of the water storage tank is connected to a condensation evaporation pipe, the outer side of one end of the water storage tank is connected to a liquid inlet pipe, an expansion valve is installed in the middle of the liquid inlet pipe, the liquid inlet end of the liquid inlet pipe is connected to a drying bottle, the liquid inlet end of the drying bottle is connected to the condensation pipe, and the liquid inlet end of the condensation pipe is connected to a connecting pipe;

[0012] The other end of the water storage tank is connected to a liquid outlet pipe, the liquid outlet end of the liquid outlet pipe is connected to a gas-liquid separator, the gas outlet end of the gas-liquid separator is connected to a U-shaped pipe, the gas outlet end of the U-shaped pipe is connected to a compressor, the gas outlet end of the compressor is connected to another condenser, and the gas outlet end of the condenser is connected to the gas inlet end of the connecting pipe, a diversion threshold is welded in the middle of the inner side of the water storage tank, and water outlet windows are opened at both ends of the outer side of the water storage tank.

[0013] Preferably, a filter is fixed to the inner side of another connecting window opened on one side of the shielding cover by bolts, and a partition window is fixed to the air inlet end of the filter at the air inlet end of the connecting window by bolts. Support plates are welded to the inner sides of two water tank fixing frames at the top and bottom ends of the two condensation water tanks, and extension holes are opened on both sides of the top of the two condensation water tanks.

[0014] Preferably, the water inlet ends of the two condensate guide pipes are respectively connected to two water outlet windows that are opened through the two ends of the outer side of the water storage tank.

[0015] Preferably, the height of the water outlet ends of the two condensate guide pipes relative to the ground is higher than the height of the water inlet ends of the two overflow pipes relative to the ground, and the water outlet ends of the two overflow pipes extend through to the outside of the shielding cover.

[0016] Preferably, the air outlet end of the air outlet pipe passes through a water tank fixing frame and extends toward the outside of the shielding cover.

[0017] Preferably, the air outlet end of the connecting pipe is connected to the air inlet end of the blower, and the power input end of the blower is connected to the power output end of the external control terminal.

[0018] Preferably, the two condensing tubes are both arranged inside the two condensing water tanks, and the liquid inlet ends and the liquid outlet ends of the two condensing tubes extend outward through extension holes opened on both sides of the top of the condensing water tank respectively.

[0019] Preferably, the U-shaped tube is arranged inside a condensation water tank, and the air inlet end and the air outlet end of the U-shaped tube both extend to the outside of the condensation water tank.

[0020] Preferably, a cold air outlet pipe is connected to the middle of the outer side of one end of the water storage tank, and the outlet end of the cold air outlet pipe extends through to the outer side of the fixed plate.

[0021] In summary, the present invention includes the following beneficial technical effects:

[0022] 1. The condensed water generated by the condensation evaporation tube is collected through the heat exchange mechanism, and the condensed water is used instead of the heat dissipation fan to dissipate the Freon gas pressurized and heated by the air compressor in the air-conditioning system, so that it can dissipate heat and liquefy, and can have a smaller footprint, while saving production costs. The continuously generated condensed water can continuously replace the water inside the condensation water tank, and can continuously cool the water inside the condensation water tank.

[0023] 2. By setting an air inlet heat dissipation structure at the air inlet end of the heat exchange mechanism, the wind force injected during the movement of the bus is used to cool down a condensate water tank, and the condensate water tank is cooled together with the continuously generated condensate water, thereby improving the cooling efficiency of the condensate water tank and avoiding the continuous increase in the condensate water temperature caused by long-term heat exchange in the condensate water tank, thereby reducing the heat dissipation efficiency of the condenser tube.

[0024] 3. By connecting the air inlet end of the blower with the air outlet end of another condensate water tank, the wind force generated by the blower when it is inlet is used to cool the condensate inside the other condensate water tank. This allows one of the two condensate water tanks to be cooled when the bus is not in operation, thereby avoiding a decrease in the cooling efficiency of the condensate water tank inside the vehicle when it is not in operation, and at the same time improving the cooling efficiency of the condensate water tank when the vehicle is in operation.

[0025] 4. By connecting a U-shaped tube to the air outlet of the gas-liquid separator in the air-conditioning system, and taking advantage of the fact that the coolant gas inside the U-shaped tube has a low temperature before entering the compressor, the U-shaped tube is set inside a condensate tank to cool the condensed water. At the same time, the coolant inside the heated U-shaped tube will also evaporate and gasify due to the heating, and can enter the compressor more safely, avoiding liquid entering the compressor and causing damage to the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the fixing plate installation structure in the present invention;

[0027] Figure 2 It is a schematic diagram of the partition window installation structure in the present invention;

[0028] Figure 3 It is a schematic diagram of the installation structure of the interconnecting window in the present invention;

[0029] Figure 4 It is a schematic diagram of the installation structure of the water retaining inclined plate in the present invention;

[0030] Figure 5 It is a schematic diagram of the overflow pipe installation structure in the present invention;

[0031] Figure 6 It is a schematic diagram of the installation structure of the heat exchange mechanism in the present invention;

[0032] Figure 7 It is a schematic diagram of the U-shaped tube installation structure in the present invention;

[0033] Figure 8 It is a schematic diagram of the installation structure of the circulating refrigeration mechanism in the present invention;

[0034] Fig. 9 It is a schematic diagram of the installation structure of the expansion valve in the present invention.

[0035] Description of reference numerals: 1. fixing plate;

[0036] 2. Heat exchange mechanism; 201. Water tank fixing frame; 202. Condensate water tank; 203. Ventilation window; 204. Wind hood; 205. Air outlet pipe; 206. Condensate water guide pipe; 207. Overflow pipe; 208. Closing plate; 209. Air inlet pipe; 210. Shielding cover; 211. Communication window; 212. Air filling box; 213. Air outlet; 214. Water retaining inclined plate; 215. Filter screen; 216. Partition window; 217. Connection pipe; 218. Support plate; 219. Extension hole; 220. Condensate pipe; 221. Communication pipe;

[0037] 3. Circulation refrigeration mechanism; 301. Blower; 302. Blower pipe; 303. Water storage tank; 304. Condensation evaporation pipe; 305. Liquid inlet pipe; 306. Expansion valve; 307. Drying bottle; 308. Water outlet window; 309. Liquid outlet pipe; 310. Gas-liquid separator; 311. U-shaped pipe; 312. Compressor; 313. Diverter threshold; 314. Cold air outlet pipe. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 - Fig. 9 The present invention is described in further detail.

[0039] Reference Figure 1 - Fig. 9 , a passenger car air conditioner evaporator with a supercooling function, comprising a fixing plate 1, a heat exchange mechanism 2 is installed on the top of the fixing plate 1;

[0040] The heat exchange mechanism 2 includes two water tank fixing frames 201 fixed to the top of the fixing plate 1 in a symmetrical state;

[0041] Condensate tanks 202 are fixed to the middle of the inner sides of the two water tank fixing frames 201 by bolts, ventilation windows 203 are provided on both sides of the condensate tanks 202, wind shields 204 are welded to the opposite ends of the two condensate tanks 202, an outlet pipe 205 is connected to the middle of one end of one wind shield 204, and a connecting pipe 217 is connected to the middle of one end of the other wind shield 204, a condensate guide pipe 206 is connected to one side 204 of the opposite ends of the two condensate tanks 202, and an overflow pipe 207 is connected to the middle of the opposite ends of the two condensate tanks 202. 1 is fixed with a closing plate 208 by bolts on the outside, and an air inlet pipe 209 is connected to the middle of the closing plate 208 away from the end of the condensation water guide pipe 206. A shielding cover 210 is fixed with bolts on the top of the fixing plate 1 on the outside of the two water tank fixing frames 201. The height of the water outlet ends of the two condensation water guide pipes 206 relative to the ground is higher than the height of the water inlet ends of the two overflow pipes 207 relative to the ground, so that the newly generated cooling water can continue to enter the condensation water tank 202, and the condensation water capacity inside the condensation water tank 202 remains unchanged, thereby realizing the cooling of the cooling water. The air outlet end of the air outlet pipe 205 penetrates a water tank fixing frame 201 and extends to the outside of the shielding cover 210, and the water outlet ends of the two overflow pipes 207 penetrate and extend to the outside of the shielding cover 210. The opposite ends of the shielding cover 210 are penetrated and opened with connecting windows 211, so as to use the circulating air to cool the condensation water tank 202. A bellows box 212 is welded to the inner side of a connecting window 211, an air vent 213 is provided at the outer bottom of one end of the bellows box 212, and a water retaining inclined plate 214 is welded to the inner side of the bellows box 212 to prevent rainwater from entering the bellows box 212 through the air vent 213 when it rains. The air inlet end of the air inlet pipe 209 is connected to one end of the air filling box 212 close to the water tank fixing frame 201, and condensation pipes 220 are respectively arranged inside the two condensation water tanks 202. A filter screen 215 is fixed with bolts on the inner side of another connecting window 211 opened on one side of the shielding cover 210. In order to filter external debris when the air blowing structure takes in air, the air inlet end of the filter screen 215 is fixed with a partition window 216 on the air inlet end of the connecting window 211 by bolts. Support plates 218 are welded on the top and bottom ends of the two condensation water tanks 202 on the inner side of the two water tank fixing frames 201. In order to form a closed space through the support plate 218 and the closing plate 208, so that air can only circulate through the ventilation window 203, extension holes 219 are opened on both sides of the top of the two condensation water tanks 202.

[0042] A circulating refrigeration mechanism 3 is installed in the middle of the top of the fixed plate 1;

[0043] The circulating refrigeration mechanism 3 includes a blower 301;

[0044] A blower 301 is installed in the middle of the top of the fixed plate 1 through the base, the air outlet end of the connecting pipe 217 is connected to the air inlet end of the blower 301, the power input end of the blower 301 is connected to the power output end of the external control terminal, the air outlet end of the blower 301 is connected to the blast pipe 302, the air outlet end of the blast pipe 302 is connected to the water storage tank 303, the inner side of the water storage tank 303 is connected to the condensation evaporation pipe 304, the outer side of one end of the water storage tank 303 is connected to the liquid inlet pipe 305, the middle of the liquid inlet pipe 305 is installed with an expansion valve 306, the liquid inlet end of the liquid inlet pipe 305 is connected to a drying bottle 307, and the liquid inlet end of the drying bottle 307 is connected to the condensation pipe 220. The liquid inlet end of the condenser 220 is connected to a connecting pipe 221, and the other end of the water storage tank 303 is connected to a liquid outlet pipe 309, the liquid outlet end of the liquid outlet pipe 309 is connected to a gas-liquid separator 310, the gas outlet end of the gas-liquid separator 310 is connected to a U-shaped tube 311, and the gas outlet end of the U-shaped tube 311 is connected to a compressor 312. The U-shaped tube 311 is arranged on the inner side of a condensation water tank 202, and the gas inlet end and the gas outlet end of the U-shaped tube 311 both extend to the outside of the condensation water tank 202, in order to enable the U-shaped tube 311 to cool a condensation water tank 202, and at the same time, the heat released by the condensation water tank 202 is used to evaporate and gasify the coolant inside the U-shaped tube 311. The air outlet of the compressor 312 is connected to another condenser 220. Both condenser 220 are arranged inside the two condensing water tanks 202. The liquid inlet and liquid outlet of the two condenser 220 extend outward through the extension holes 219 opened on both sides of the top of the condensing water tank 202, and the air outlet of the condenser 220 is connected to the air inlet of the connecting pipe 221. A diversion threshold 313 is welded in the middle of the inner side of the water storage tank 303 to make the condensed water flow evenly to the inside of the two condensing water tanks 202. Water outlet windows 308 are opened through both ends of the outer side of the water storage tank 303. The water inlet ends of the two condensing water guide pipes 206 are respectively connected to the two water outlet windows 308 opened through both ends of the outer side of the water storage tank 303. In order to guide the cooling water, a cold air outlet pipe 314 is connected to the middle of the outer side of one end of the water storage tank 303. The outlet end of the cold air outlet pipe 314 extends to the outside of the fixed plate 1.

[0045] Working principle: First, the operator fixes the fixing plate 1 on the top of the bus, connects the vehicle's air conditioning air inlet pipe with the outlet end of the cold air outlet pipe 314 of the cold storage evaporator, and then starts the compressor 312 and the blower 301. At that time, the air inlet end of the compressor 312 will extract the gaseous Freon inside the U-tube 311, and the U-tube 311 will extract the gaseous Freon inside the gas-liquid separator 310 connected thereto. The gas-liquid separator 310 will extract air toward the condensation evaporation tube 304 through the liquid outlet pipe 309 connected to its air inlet end. During this period, the gas-liquid separator 310 can separate the liquid coolant and the gaseous coolant to ensure that they enter the compressor 312. The refrigerant in the compressor 312 is always kept in a gaseous state, thereby preventing the compressor 312 from being damaged due to liquid entering the compressor 312. During this period, the condensation evaporation tube 304 will be evacuated through the liquid inlet tube 305 connected to its air inlet end, and the expansion valve 306 connected in the middle of the liquid inlet tube 305 can convert the refrigerant extracted from the dry bottle 307 from liquid to gaseous state. While changing the state, the refrigerant can also release pressure and cool down. The air outlet end of the compressor 312 will pressurize and heat the absorbed gas and transfer it to a condenser tube 220 connected to it, and then transfer it to another condenser tube 220 through the condenser tube 220 and the connecting tube 221, and then transfer it to the dry bottle 307 through the condenser tube 220;

[0046] During this period, the blower 301 will blow air into the water storage tank 303. After the hot air from the outside is blown into the water storage tank 303, it will produce condensed water after contacting the condensation evaporation tube 304. At that time, the condensed water will drip to the bottom of the inner side of the water storage tank 303. The diverter threshold 313 welded in the middle of the water storage tank 303 can divert the condensed water. The condensed water will enter the two condensation water tanks 202 through the condensation water guide pipes 206 connected at both ends of the outer side of the water storage tank 303, and the condensation pipes 220 arranged in the condensation water tank 202 can enter The continuously generated condensed water can prevent the temperature of the condensed water in the condensed water tank 202 from continuously rising due to heat exchange, and when the height of the condensed water in the condensed water tank 202 reaches the height of the water inlet end of the overflow pipe 207 connected to the outside of one end of the condensed water tank 202, the condensed water will flow to the outside through the overflow pipe 207, so that the water in the condensed water tank 202 is continuously replaced, the discharged water will take away the heat, and the temperature of the incoming condensed water will be lower than the temperature of the water in the condensed water tank 202, thereby achieving the cooling of the condensed water;

[0047] During the operation of the vehicle, the wind will enter through the air vent 213 of the air filling box 212 welded at one end of the outer side of the shielding cover 210, and the water retaining inclined plate 214 welded on the inner side of the shielding cover 210 will block the rain from the outside, preventing the rain from entering the shielding cover 210 when it rains. The wind will enter the air inlet pipe 209 connected to it through the air filling box 212, and then enter the water tank fixing frame 201 through the air inlet pipe 209. At this time, the condensation water tank 20 The two support plates 218 welded at the top and bottom will form a closed space with the closing plate 208 welded at the outer side of one end of the water tank fixing frame 201, so that the wind can only enter the inside of the ventilation windows 203 opened at both ends of the condensation water tank 202, and finally pass through the inside of the wind cover 204 welded at the other side of the ventilation window 203, and then be discharged to the outside through the air outlet pipe 205 connected in the middle of the outer side of one end of the wind cover 204. The wind flowing during this period can cool down the condensation water tank 202;

[0048] The started blower 301 will draw air toward the connecting pipe 217 connected thereto, and the connecting pipe 217 will draw air toward the inside of the wind hood 204 connected thereto, and the wind hood 204 will draw air to the outside through the ventilation windows 203 that penetrate through the two ends of the condensation water tank 202, and finally draw air outward through the partition window 216 installed on the outside of one end of the shielding cover 210. The circulating wind will cool down the condensation water tank 202 close to the connecting pipe 217, and the filter 215 installed at the air inlet end of the partition window 216 can prevent external dust and debris from entering the inside of the shielding cover 210, and is designed The U-tube 311 disposed inside a condensate water tank 202 can also cool the condensate inside the condensate water tank 202. By cooling the gaseous condensing agent through the condensate water, the equipment can omit the intervention of a fan and reduce production costs. The active air intake cooling of the blower 301 can improve the cooling efficiency of one condensate water tank 202. The passive air intake of the air filling box 212 during vehicle operation can improve the cooling efficiency of another condensate water tank 202 during vehicle operation. Such a design can reduce the space occupied by the equipment and also reduce the investment in production costs.

[0049] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A passenger car air conditioner evaporator with a supercooling function, comprising a fixing plate (1), characterized in that: A heat exchange mechanism (2) is installed on the top of the fixed plate (1); The heat exchange mechanism (2) comprises two water tank fixing frames (201) fixed symmetrically to the top of the fixing plate (1); Condensation water tanks (202) are fixed in the middle of the inner sides of the two water tank fixing frames (201) by bolts, ventilation windows (203) are provided on both sides of the condensation water tanks (202), wind shields (204) are welded to the opposite ends of the two condensation water tanks (202), an air outlet pipe (205) is connected in the middle of one end of one wind shield (204), and a connecting pipe (217) is connected in the middle of one end of the other wind shield (204), a condensation water guide pipe (206) is connected to one side of the wind shield (204), and an overflow pipe (207) is connected in the middle of the opposite ends of the two condensation water tanks (202); A closing plate (208) is fixed to the outside of one of the water tank fixing frames (201) by bolts, and an air inlet pipe (209) is connected in the middle of one end of the closing plate (208) away from the condensate guide pipe (206). A shielding cover (210) is fixed to the top of the fixing plate (1) by bolts on the outside of the two water tank fixing frames (201). The shielding covers (210) are penetrated through the opposite ends. A wind box (212) is welded to the inside of one of the connecting windows (211). An air outlet (213) is opened at the bottom of the outside of one end of the wind box (212). A water retaining inclined plate (214) is welded to the inside of the wind box (212). The air inlet end of the air inlet pipe (209) is connected to one end of the wind box (212) close to the water tank fixing frame (201), and a condensation pipe (220) is respectively arranged inside the two condensate water tanks (202).

2. The passenger car air conditioning evaporator with supercooling function according to claim 1, characterized in that: A circulating refrigeration mechanism (3) is installed in the middle of the top end of the fixed plate (1); The circulating refrigeration mechanism (3) comprises a blower (301); A blower (301) is installed in the middle of the top of the fixed plate (1) through a base, the air outlet end of the blower (301) is connected to an air blower pipe (302), the air outlet end of the air blower pipe (302) is connected to a water storage tank (303), the inner side of the water storage tank (303) is connected to a condensation evaporation pipe (304), the outer side of one end of the water storage tank (303) is connected to a liquid inlet pipe (305), an expansion valve (306) is installed in the middle of the liquid inlet pipe (305), the liquid inlet end of the liquid inlet pipe (305) is connected to a drying bottle (307), the liquid inlet end of the drying bottle (307) is connected to the condensation pipe (220), and the liquid inlet end of the condensation pipe (220) is connected to a connecting pipe (221); The other end of the water storage tank (303) is connected to a liquid outlet pipe (309), the liquid outlet end of the liquid outlet pipe (309) is connected to a gas-liquid separator (310), the gas outlet end of the gas-liquid separator (310) is connected to a U-shaped tube (311), the gas outlet end of the U-shaped tube (311) is connected to a compressor (312), the gas outlet end of the compressor (312) is connected to another condenser (220), and the gas outlet end of the condenser (220) is connected to the gas inlet end of the connecting tube (221), a diversion threshold (313) is welded in the middle of the inner side of the water storage tank (303), and water outlet windows (308) are provided through both ends of the outer side of the water storage tank (303).

3. The passenger car air conditioning evaporator with supercooling function according to claim 1, characterized in that: A filter screen (215) is fixed to the inner side of another connecting window (211) opened on one side of the shielding cover (210) by means of bolts, and a partition window (216) is fixed to the air inlet end of the filter screen (215) by means of bolts at the air inlet end of the connecting window (211), and support plates (218) are welded to the top and bottom ends of the two condensation water tanks (202) on the inner sides of the two water tank fixing frames (201), and extension holes (219) are opened on both sides of the top ends of the two condensation water tanks (202).

4. The passenger car air conditioning evaporator with supercooling function according to claim 2, characterized in that: The water inlet ends of the two condensed water guide pipes (206) are respectively connected to two water outlet windows (308) that penetrate through the two ends of the outer side of the water storage tank (303).

5. The passenger car air conditioning evaporator with supercooling function according to claim 1, characterized in that: The height of the water outlet ends of the two condensed water guide pipes (206) relative to the ground is higher than the height of the water inlet ends of the two overflow pipes (207) relative to the ground, and the water outlet ends of the two overflow pipes (207) extend through and extend to the outside of the shielding cover (210).

6. The passenger car air conditioning evaporator with supercooling function according to claim 1, characterized in that: The air outlet end of the air outlet pipe (205) passes through a water tank fixing frame (201) and extends toward the outside of the shielding cover (210).

7. The passenger car air conditioner evaporator with supercooling function according to claim 2, characterized in that: The air outlet end of the connection pipe (217) is connected to the air inlet end of the blower (301), and the power input end of the blower (301) is connected to the power output end of an external control terminal.

8. The passenger car air conditioner evaporator with supercooling function according to claim 2, characterized in that: The liquid inlet end and the liquid outlet end of the two condensing pipes (220) extend outward through extension holes (219) opened on both sides of the top of the condensing water tank (202).

9. The passenger car air conditioner evaporator with supercooling function according to claim 2, characterized in that: The U-shaped tube (311) is arranged inside a condensation water tank (202), and an air inlet end and an air outlet end of the U-shaped tube (311) both extend to the outside of the condensation water tank (202).

10. The passenger car air conditioner evaporator with supercooling function according to claim 2, characterized in that: A cold air outlet pipe (314) is connected to the middle of the outer side of one end of the water storage tank (303), and the outlet end of the cold air outlet pipe (314) extends through and extends to the outer side of the fixing plate (1).

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