CN203093674U - Automobile air conditioning system - Google Patents
Automobile air conditioning system Download PDFInfo
- Publication number
- CN203093674U CN203093674U CN 201220744911 CN201220744911U CN203093674U CN 203093674 U CN203093674 U CN 203093674U CN 201220744911 CN201220744911 CN 201220744911 CN 201220744911 U CN201220744911 U CN 201220744911U CN 203093674 U CN203093674 U CN 203093674U
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- outlet
- warm braw
- conditioning system
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Abstract
The utility model discloses an automobile air conditioning system, and belongs to the technical field of automobiles. According to the technical scheme, the automobile air conditioning system comprises an air heating system and a refrigerating system, wherein the air heating system and the refrigerating system share the same air box, an air inlet at the front end of the air box is connected with an air outlet of an air blower, a cold air outlet and a warm air outlet are formed at the rear end of the air box, an evaporator core body of the refrigerating system is located in the middle of the air box, a temperature sensor is arranged on the evaporator core body, an output end of the temperature sensor is connected with an output port of an air condition controller, and an air heating core body of the air heating system is arranged in the inner side of the warm air outlet. After improvement, an auxiliary air heating core body is arranged in the front portion of the evaporator core body, the auxiliary air heating core body and the air heating core body are connected to a circulating water pipe in parallel through an electromagnetic valve, and a control end of the electromagnetic valve is connected with the output port of the air condition controller. According to the automobile air conditioning system, refrigerating capacity is greatly improved, temperature fluctuation on an air outlet of an air conditioner is reduced, the number of disconnection times of a compressor is reduced, engine operation is more stable, and therefore automobile driving comfort is improved.
Description
Technical field
The utility model relates to a kind of automotive interior environment that is used to regulate, and to improve the device of ride comfort, belongs to automobile technical field.
Background technology
Automotive air-conditioning system comprises warm air system and refrigeration system, the bellows structure of orthodox car a/c system as shown in Figure 1, the ventilation inlet 1 of bellows 2 front ends is connected with blower outlet, the rear end is provided with cold wind outlet 5 and warm braw outlet 6, the evaporator core 4 of refrigeration system is positioned at bellows 2 middle parts, and the warm braw core body 7 of warm air system is positioned at warm braw and exports 6 inboards.When warm air system is worked, enter bellows 2 from the air-flow of blowing engine after, at first pass evaporator core 4(refrigeration system this moment and do not work), through 7 heating of warm braw core body, enter operator's compartment from the warm braw outlet at last then; When refrigeration system was worked, the air-flow that enters bellows 2 entered operator's compartment from cold wind outlet 5 after evaporator core 4 coolings.
During refrigeration system work, the surface temperature of evaporator core reaches or is lower than dew temperature, airborne aqueous vapor is in the evaporator core surface condensation, when the evaporator core temperature reaches below 0 ℃, condenses in the expansion core surface and the condensed water of not drained will condense into frost.Along with the continuous reduction of evaporator core temperature, condense in the constantly thickening of frost layer on its surface, the resistance of windstream pervaporation device core body constantly increases, charge air constantly reduces, and finally causes the air conditioner refrigerating ability to reduce or forfeiture.
Traditional solution is on surface, evaporator core air side or temperature sensor of internal placement, when sensor to temperature when dropping to the threshold values of setting, air-conditioner controller cuts off the power supply of refrigerating compressor power-transfer clutch, refrigerating compressor quits work, the circulated air that utilizes air conditioner blower to blow over then melts the frost of evaporator core, when the detected temperature of evaporator core surface temperature sensor rises to the threshold values of setting, air-conditioner controller is connected the power supply of refrigerating compressor power-transfer clutch, and a/c system recovers refrigeration.The shortcoming of this Defrost method is to make the air-conditioner air outlet temperature bigger fluctuation occur, and because air is relative with the temperature difference of expansion core surface less, the time of defrosting is longer, has influenced the refrigeration of a/c system.In addition, this Defrost method also can cause the high frequent break-make, and then output causes greater impact to engine power, has had a strong impact on taking advantage of of vehicle and has driven traveling comfort.
The utility model content
The purpose of this utility model is the drawback at prior art, and a kind of improved automotive air-conditioning system is provided, and to improve the refrigeration of air conditioning for automobiles, improves taking advantage of of vehicle and drives traveling comfort.
Problem described in the utility model realizes with following technical proposals:
A kind of automotive air-conditioning system, the warm air system and the refrigeration system that comprise shared same bellows in the formation, the ventilation inlet of described bellows front end links to each other with blower outlet, the rear end is provided with cold wind outlet and warm braw outlet, the evaporator core of described refrigeration system is positioned at the bellows middle part, it is provided with temperature sensor, the output port of the output termination air-conditioner controller of described temperature sensor, it is inboard that the warm braw core body of described warm air system is positioned at the warm braw outlet, after the improvement, be provided with secondary warm braw core body in the place ahead of evaporator core, described secondary warm braw core body is attempted by on the circulating water pipe by electromagnetic valve and warm braw core body, the output port of the control termination air-conditioner controller of described electromagnetic valve.
Above-mentioned automotive air-conditioning system, described cold wind outlet is positioned at the top of warm braw outlet, is provided with the changes in temperature air door between cold wind outlet and warm braw outlet, and the drive motor of described changes in temperature air door connects the output port of air-conditioner controller.
Above-mentioned automotive air-conditioning system, described temperature sensor are positioned at the inside or the surface, air side of evaporator core.
The secondary warm braw core body of the utility model utilization liberated heat defrosts to evaporator core, not only improved defrosting speed greatly, prolonged the operational use time of evaporator, improved the refrigerating capacity of a/c system, reduced the fluctuation of air-conditioner air outlet temperature, but also reduced the disconnection times of compressor, it is more steady to run an engine, and drives traveling comfort thereby improved taking advantage of of vehicle.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the bellows structure scheme drawing of orthodox car a/c system;
Fig. 2 is a bellows structure scheme drawing of the present utility model;
Fig. 3 is the electrical schematic diagram of control system.
Used symbol among the figure: 1, ventilation inlet, 2, bellows, 3, secondary warm braw core body, 4, evaporator core, 5, cold wind outlet, 6, the warm braw outlet, 7, warm braw core body, 8, the changes in temperature air door, 9, circulating water pipe, V, electromagnetic valve, U1, air-conditioner controller, ECU, control unit of engine, the drive motor of M, changes in temperature air door, J, compressor relay, CT, electromagnetic clutch for compressor, T, temperature sensor.
The specific embodiment
Referring to Fig. 2 and Fig. 3, the utility model improves the orthodox car a/c system, has set up secondary warm braw core body 3 in the place ahead of evaporator core 4, when evaporator core 4 frostings, by secondary warm braw core body 3 heating fumigators core bodys 4, frost is melted.
Principle of work is introduced:
1, when using air conditioner refrigerating, the drive motor M rotation of air-conditioner controller U1 control changes in temperature air door, drive changes in temperature air door 8 and close the ventilation inlet of warm braw core body 7, cold air directly blows out by cold wind outlet 5, evaporator surface temperature sensor T detects the air themperature of evaporator air side, when temperature drops to setting value, air-conditioner controller U1 drives electromagnetic valve V and opens, hot water flows into secondary warm braw core body 3, the EAT of evaporator core 4 raises rapidly, thereby melts the frost of evaporator core 4 surface condensations fast; When the detected temperature recovery of evaporator core 4 surface temperature sensor T arrived setting value, air-conditioner controller U1 drove electromagnetic valve V and closes, and the EAT of evaporator core 4 recovers.Because the defrost of this kind structure is very fast, so that the threshold temperature that electromagnetic valve V can be opened is set is lower, effective cooling time of a/c system can extend, can make the cold wind of air-conditioning export 5 temperature drop to lower, the refrigerating capacity of lifting a/c system; If when the frost on the shortage of heat at high speed of secondary warm braw core body 3 thawing evaporator core 4 surfaces and the leaving air temp of evaporator continued to be reduced to setting value again, air-conditioner controller U1 disconnected electromagnetic clutch for compressor CT power supply by Engine ECU, thereby realizes defrost.When the evaporator leaving air temp went back up to setting value, air-conditioner controller U1 recovered refrigerating compressor work by Engine ECU, because the effect of secondary warm braw core body 3 is arranged, thus the disconnection frequency of refrigerating compressor reduces the dynamic impact to driving engine.
2, when using air-conditioning heating, air-conditioner controller U1 disconnects electromagnetic clutch for compressor CT by Engine ECU, air-conditioning refrigeration system is not worked, the drive motor M rotation of air-conditioner controller U1 control changes in temperature air door, drive changes in temperature air door 8 and open the ventilation inlet of warm braw core body 7, air-conditioner controller U1 drives electromagnetic valve V and opens, and hot water flows into 3, two core bodys of secondary warm braw core body and works simultaneously and realize the quick heating of car load.
3, when using the air-conditioning demist, air-conditioner controller U1 drives electromagnetic valve V and closes, and changes in temperature air door 8 is adjusted to the warm braw pattern, refrigerating compressor work, air falls redundant moisture by evaporator condensation earlier and reduces absolute humidity, reduces relative humidity by 7 heating of warm braw core body again, thereby realizes demist.
This scheme is applicable to fixed displacement compressor air-conditioning system, and the variable compressor a/c system changes the flow of adjusting refrigerant by compressor discharge rate and realizes defrost; The electric expansion valve a/c system also can be realized defrost by the flow that the aperture of adjusting expansion valve is regulated refrigerant.
Claims (3)
1. automotive air-conditioning system, it comprises the warm air system and the refrigeration system of shared same bellows (2), the ventilation inlet (1) of described bellows (2) front end links to each other with blower outlet, the rear end is provided with cold wind outlet (5) and warm braw outlet (6), the evaporator core of described refrigeration system (4) is positioned at bellows (2) middle part, it is provided with temperature sensor (T), the output port of the output termination air-conditioner controller (U1) of described temperature sensor (T), the warm braw core body (7) of described warm air system is positioned at warm braw outlet (6) inboard, it is characterized in that, be provided with secondary warm braw core body (3) in the place ahead of evaporator core (4), described secondary warm braw core body (3) is attempted by on the circulating water pipe (9) output port of the control termination air-conditioner controller (U1) of described electromagnetic valve (V) by electromagnetic valve (V) and warm braw core body (7).
2. a kind of automotive air-conditioning system according to claim 1, it is characterized in that, described cold wind outlet (5) is positioned at the top of warm braw outlet (6), be provided with changes in temperature air door (8) between cold wind outlet (5) and warm braw outlet (6), the drive motor of described changes in temperature air door (M) connects the output port of air-conditioner controller (U1).
3. a kind of automotive air-conditioning system according to claim 1 and 2 is characterized in that, described temperature sensor (T) is positioned at the inside or the surface, air side of evaporator core (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744911 CN203093674U (en) | 2012-12-31 | 2012-12-31 | Automobile air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744911 CN203093674U (en) | 2012-12-31 | 2012-12-31 | Automobile air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203093674U true CN203093674U (en) | 2013-07-31 |
Family
ID=48845105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744911 Expired - Fee Related CN203093674U (en) | 2012-12-31 | 2012-12-31 | Automobile air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203093674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251833A (en) * | 2020-03-26 | 2020-06-09 | 北京新能源汽车股份有限公司 | Temperature control system for vehicle and vehicle |
-
2012
- 2012-12-31 CN CN 201220744911 patent/CN203093674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111251833A (en) * | 2020-03-26 | 2020-06-09 | 北京新能源汽车股份有限公司 | Temperature control system for vehicle and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20201231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |