CN104019527B - A kind of electric automobile air-conditioning system - Google Patents
A kind of electric automobile air-conditioning system Download PDFInfo
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- CN104019527B CN104019527B CN201410293467.XA CN201410293467A CN104019527B CN 104019527 B CN104019527 B CN 104019527B CN 201410293467 A CN201410293467 A CN 201410293467A CN 104019527 B CN104019527 B CN 104019527B
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Abstract
The present invention discloses a kind of electric automobile air-conditioning system, belongs to air-conditioning technical field. This system comprises: the air-conditioning switch being integrated on Air-Conditioning Control Panel and blower fan feedback module, gas blower, condenser fan, compressor, entire car controller, the first rly. and the 2nd rly.; Blower fan feedback module is connected with gas blower, according to gas blower whether normal operation, and outputs level signals; The coil of the first rly. is connected between air-conditioning switch and blower fan feedback module, the contact of the first rly. is connected with compressor, first rly. disconnects or adhesive according to the level signal of air-conditioning switch signal and blower fan feedback module, to control whether compressor starts work; One end of entire car controller is connected with compressor, and the other end is connected with condenser fan by the 2nd rly., and entire car controller is according to the working order of described compressor, and control the 2nd rly. adhesive or disconnection, to control whether condenser fan starts refrigeration. This system development cycle is short, cost of development is low.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of electric automobile air-conditioning system.
Background technology
Along with global energy, environmental problem increasingly serious, development energy saving standard automobile becomes the inevitable choice of automobile industry, and the electromobile represented as new-energy automobile typical case obtains develop rapidly in recent years.
Bigger difference is there is based on electromobile and tradition fuel-engined vehicle structure, making electric automobile air-conditioning system also be different from traditional fuel-engined vehicle, both differences are mainly reflected in following two aspects: the compressor of (1) electric automobile air-conditioning system is driven by electric motor, compressor discharge rate is little, rotating speed height, motor need special controller to drive; (2) engine exhaust heat of fuel-engined vehicle can not be re-used as the thermal source that system is hot, and need design thermal source and Controlling System separately. Therefore, tradition fuel-engined vehicle to be transform as electromobile, often need to develop more auxiliary component.
In prior art, such as, due to some vehicle in tradition fuel-engined vehicle, air-conditioning system many employings armstrong's patent wire drawing control of commercial car, after transforming electromobile as, it is necessary to again develops the air-conditioner controller in air-conditioning system and performer etc., causing cost of development higher, the construction cycle is long.
Summary of the invention
Embodiments providing a kind of electric automobile air-conditioning system, transform by being formed by circuit, make full use of the part function of original air-conditioning system, cost of development is low, and the construction cycle is short.
The technical scheme that the embodiment of the present invention provides is as follows:
A kind of electric automobile air-conditioning system, comprising: the air-conditioning switch being integrated on Air-Conditioning Control Panel and blower fan feedback module, gas blower, condenser fan, compressor, entire car controller, the first rly. and the 2nd rly.;
Described blower fan feedback module is connected with described gas blower, according to described gas blower whether normal operation, and outputs level signals;
The coil of described first rly. is connected between described air-conditioning switch and described blower fan feedback module, the contact of described first rly. is connected with described compressor, described first rly. disconnects or adhesive according to the level signal of described air-conditioning switch signal and described blower fan feedback module, to control whether described compressor starts work;
One end of described entire car controller is connected with described compressor, the other end is connected with described condenser fan by described 2nd rly., described entire car controller is according to the working order of described compressor, control described 2nd rly. adhesive or disconnection, to control whether described condenser fan starts refrigeration.
Preferably, also comprise: well heater, thermoswitch processed and the 3rd rly.;
One end of described well heater is fed back module with described blower fan and is connected, the other end is connected with described thermoswitch processed by described 3rd rly., and described well heater starts or stops work according to the switch state of level signal and described thermoswitch processed that described blower fan feeds back module.
Preferably, also comprising: the 4th rly. and power cell, the coil of described 4th rly. is connected with described thermoswitch processed by described 3rd rly., and the contact of described 4th rly. is connected between described power cell and described well heater.
Preferably, also comprising: the temperature controller being connected between described air-conditioning switch and described first relay1 coil, described temperature controller also feeds back module with described blower fan and is connected.
Preferably, also comprise: the binary pressure switch being connected between described first relay1 coil and described temperature controller.
Preferably, also comprise: for described electric automobile air-conditioning system provides the low pressure store battery of control voltage, one end ground connection of described low pressure store battery, the other end is connected with the 3rd rly. with described 2nd rly. respectively.
Preferably, described well heater is thermistor heater, and is provided with temperature switch on described thermistor heater.
Preferably, the contact of described gas blower and described first rly. is connected to the ground respectively.
Preferably, the coil of described 2nd rly. is connected between described entire car controller and ground, and the contact of described 2nd rly. is connected between described low pressure store battery and described condenser fan.
Preferably, one end of the coil of described 3rd rly. is connected with described well heater, and the other end is connected rear ground connection successively with described thermoswitch processed, the contact of described 3rd rly., the coils connected in series of the 4th rly..
The electric automobile air-conditioning system that the embodiment of the present invention provides, by the signal of the air-conditioning switch on collection Air-Conditioning Control Panel and blower fan feedback module, control the first rly. adhesive or disconnection, thus whether compressor is started work and controls, whether entire car controller, again according to the working order of compressor, is started by the 2nd Control condenser fan and freezes. This electric automobile air-conditioning system, make full use of the structure of original armstrong's patent wire drawing air-conditioning, by circuit structure is redesigned, the transformation of air-conditioning system can be realized, compared with again developing air-conditioner controller, performer, cost of development obviously reduces, and the construction cycle effectively shortens, easily realize, safe and reliable, be convenient to safeguard.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic circuit diagram of a kind of air conditioning system for electric car that the embodiment of the present invention provides.
Reference numeral:
1-Air-Conditioning Control Panel; 2-air-conditioning switch; 3-blower fan feedback module; 4-gas blower;
5-condenser fan; 6-compressor; 7-entire car controller; 8-first rly.;
9-the 2nd rly.; 10-well heater; 11-thermoswitch; 12-the 3rd rly.;
13-the 4th rly.; 14-power cell; 15-temperature controller; 16-binary pressure switch;
17-low pressure store battery; 18-temperature switch.
Embodiment
In order to make those skilled in the art understand the scheme of the embodiment of the present invention better, below in conjunction with drawings and embodiments, the embodiment of the present invention is described in further detail.
As shown in Figure 1, electric automobile air-conditioning system can comprise: the air-conditioning switch 2 being integrated on Air-Conditioning Control Panel 1 and blower fan feedback module 3, gas blower 4, condenser fan 5, compressor 6, entire car controller 7, first rly. 8 and the 2nd rly. 9; Wherein, blower fan feedback module 3 can be connected with gas blower 4, according to gas blower 4 whether normal operation, and outputs level signals; The coil of the first rly. 8 can be connected between air-conditioning switch 2 and blower fan feedback module 3, the contact of the first rly. 8 can be connected with compressor 6, first rly. 8 can disconnect or adhesive according to the level signal of air-conditioning switch signal and blower fan feedback module 3, to control whether compressor 6 starts work; One end of entire car controller 7 can be connected with compressor 6, the other end can be connected with condenser fan 5 by the 2nd rly. 9, entire car controller 7 can according to the working order of compressor 6, and control the 2nd rly. 9 adhesive or disconnection, to control whether condenser fan 5 starts refrigeration. Wherein, the level signal that blower fan feedback module 3 exports can be high level signal, it is possible to thinks low level signal, specifically can arrange as required. Compressor 6 preferably adopts swirl motor compressor all-in-one. This electric automobile air-conditioning system, the structure of original armstrong's patent wire drawing air-conditioning can be made full use of, by circuit structure is redesigned, the transformation of air-conditioning system can be realized, compared with again developing air-conditioner controller, performer, cost of development obviously reduces, and the construction cycle effectively shortens, easily realize, safe and reliable, be convenient to safeguard.
Above-mentioned electric automobile air-conditioning system can also comprise: well heater 10, thermoswitch processed 11 and the 3rd rly. 12; Wherein, one end of well heater 10 can be fed back module 3 and is connected with blower fan, the other end can be connected with thermoswitch 11 processed by the 3rd rly. 12, and well heater 10 can start or stop work according to the switch state of level signal and thermoswitch 11 processed that blower fan feeds back module 3. Whether well heater 10 is worked control by arranging special thermoswitch processed 11, it is not only possible to refrigeration cool-down, it is also possible to the heat temperature raising when needs, it is achieved the two-ways regulation of temperature. Wherein, according to the space size of Air-Conditioning Control Panel 1, it is possible to thermoswitch 11 processed is also integrated on Air-Conditioning Control Panel 1, naturally it is also possible to thermoswitch 11 processed is arranged on other positions as individual components. Fed back the work of module 3 and thermoswitch 11 co-controlling well heater 10 processed by blower fan, when the Signal aspects gas blower 4 of blower fan feedback module 3 feedback does not have a normal operation, well heater 10 cannot start; When blower fan feeds back Signal aspects gas blower 4 normal operation that module 3 is fed back, well heater 10 could start work such that it is able to realizes the starting protection of thermistor heater, prevents dry combustion method and cause fire failure.
Above-mentioned well heater 10 preferably adopts thermistor heater, especially PTC (PositiveTemperatureCoefficient, positive temperature coefficient) thermistor heater. Thermistor heater can be provided with temperature switch 18, when the temperature of the thermistor in thermistor heater is lower than set(ting)value, such as 85 DEG C time, then temperature switch 18 closes, and thermistor heater starts heating, when thermistor temp reaches set(ting)value, temperature switch 18 can disconnect automatically, make thermistor heater stop heating, thus prevent constant temperature from raising, the security incidents such as initiation fire.
Above-mentioned electric automobile air-conditioning system can further include: the 4th rly. 13 and power cell 14, the coil of the 4th rly. 13 can be connected with thermoswitch 11 processed by the 3rd rly. 12, and the contact of the 4th rly. 13 can be connected between power cell 14 and well heater 10. Wherein, power cell 14 preferably adopts the high pressure store battery of 380V. Distinguishing according to wire loop operating voltage height, the 3rd rly. 12 is under-voltage relay, and the 4th rly. 13 is then high pressure rly.. The 3rd rly. 12 adhesive or disconnection is controlled by thermoswitch 11 processed, and then whether control the 4th rly. 13 cuts off the circuit between well heater 10 and power cell 14 indirectly, high-low circuit adopts different rly. control, and safety performance is good, and is convenient to safeguard.
In embodiments of the present invention, in order to realize automatic control, it is also possible to arrange temperature controller 15 between the air-conditioning switch 2 of Air-Conditioning Control Panel 1 and the coil of the first rly. 8 of electric automobile air-conditioning system, temperature controller 15 also feeds back module 3 with blower fan and is connected. Temperature controller 15 is provided with the temperature sensor be close to vaporizer and arrange, after blower fan feeds back level Signal aspects gas blower 4 normal operation of module 3, temperature sensor starts to gather the temperature of vaporizer, if the temperature of vaporizer is less than or equal to the first preset temp, such as-1 DEG C time, temperature controller 15 disconnects and cuts off circuit connection, cuts off compressor control loop, thus it is invalid that air-conditioning switch 2 is exported; If evaporator temperature rises to the 2nd preset temp, such as more than 4 DEG C time, temperature controller 15 closes, and makes the conducting of compressor control loop, thus air-conditioning switch 2 is exported effectively. Temperature according to vaporizer, when control is freezed, when is stopped refrigeration, it is possible to prevent evaporimeter frosting, and effective save energy.
Also being provided with binary pressure switch 16 between above-mentioned temperature controller 15 and the coil of the first rly. 8, wherein, the detecting end of binary pressure switch 16 can be arranged on different positions according to piping layout situation. Such as, can be connected with the pipeline between condenser and vaporizer, when detecting that the pressure of this section of pipeline is excessive or excessively little, such as, when being greater than 2.4MPa or be less than 1.2MPa, binary pressure switch 16 action, cuts off circuit and connects, thus compressor control loop is disconnected, after air-conditioning switch 2 is closed, still can not freeze, it is possible to effectively save energy.
In embodiments of the present invention, it is possible to adopt 12V low pressure store battery 17 be electric automobile air-conditioning system provide control voltage, one end of this low pressure store battery 17 can ground connection, the other end can be connected with the 3rd rly. 12 with the 2nd rly. 9 respectively; Gas blower 4 can be connected to the ground respectively with the contact of the first rly. 8; Can the coil of the 2nd rly. 9 be connected between entire car controller 7 and ground, it is possible to the contact of the 2nd rly. 9 is connected between low pressure store battery 17 and condenser fan 5; Can being connected with well heater 10 one end of the coil of the 3rd rly. 12, the other end is connected rear ground connection successively with the contact of thermoswitch 11 processed, the 3rd rly. 12, the coils connected in series of the 4th rly. 13.
Hereinafter the principle of work of the electric automobile air-conditioning system of a kind of concrete structure that the embodiment of the present invention provides is briefly introduced.
Air-conditioning system process of refrigeration is roughly as follows: open the air-conditioning switch 2 on Air-Conditioning Control Panel 1, and blower fan feedback module 3 starts to gather the working state signal of gas blower 4, and exports high level or low level signal. after blower fan feedback module 3 exports low level signal, can think that gas blower 4 is in normal operation state, temperature sensor on temperature controller 15 starts to gather the temperature of vaporizer, when the temperature of vaporizer is higher than set(ting)value, temperature controller 15 circuit closed, detecting end in binary pressure switch 16 starts to detect line pressure, when line pressure is in setting range, binary pressure switch 16 closes, the coil of the first rly. 8 obtains electric, the normally opened contact adhesive of the first rly. 8, compressor 6 is made to start work, compressor 6 can send signal by CAN communication to entire car controller 7, after entire car controller 7 receives the signal of compressor 6 normal operation, export high level signal to the 2nd rly. 9, the coil of the 2nd rly. 9 is made to obtain electric, the normally opened contact adhesive of the 2nd rly. 9, condenser fan 5 conducting is made to start to freeze, when, after refrigeration certain time, the temperature sensor on temperature controller 15 detects that the temperature of vaporizer reaches or lower than set(ting)value, then temperature controller 15 pilot circuit disconnects, and stops process of refrigeration, in order to avoid evaporimeter frosting, thus realize temperature protection function.
Air-conditioning system heat-processed is roughly as follows: closed thermoswitch 11 processed, thermistor heater starts to gather the working state signal of the gas blower 4 that blower fan feedback module 3 is fed back, when blower fan feedback module 3 exports low level signal, can think gas blower 4 normal operation, now, if the temperature of the thermistor in thermistor heater is lower than set(ting)value, then temperature switch 18 closes, now, the coil of the 3rd rly. 12 obtains electric, the normally opened contact adhesive of the 3rd rly. 12, and then the coil making the 4th rly. 13 obtains electric, the normally opened contact adhesive of the 4th rly. 13, control thermistor heater starts to heat, until when thermistor temp reaches set(ting)value, temperature switch 18 disconnects automatically, or manually disconnect thermoswitch 11 processed, thermistor heater can be made to stop heat-processed.
The electric automobile air-conditioning system that the embodiment of the present invention provides, by the signal of the air-conditioning switch on collection Air-Conditioning Control Panel and blower fan feedback module, control the first rly. adhesive or disconnection, thus whether compressor is started work and controls, whether entire car controller, again according to the working order of compressor, is started by the 2nd Control condenser fan and freezes. This electric automobile air-conditioning system, on the basis of original armstrong's patent wire drawing air-conditioning, redesign only by circuit structure, the transformation of air-conditioning system can be realized, compared with again developing air-conditioner controller, performer, cost of development obviously reduces, and the construction cycle effectively shortens, easily realize, safe and reliable, be convenient to safeguard.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an electric automobile air-conditioning system, it is characterised in that, comprising:
The air-conditioning switch being integrated on Air-Conditioning Control Panel and blower fan feedback module, gas blower, condenser fan, compressor, entire car controller, the first rly. and the 2nd rly.;
Described blower fan feedback module is connected with described gas blower, according to described gas blower whether normal operation, and outputs level signals;
The coil of described first rly. is connected between described air-conditioning switch and described blower fan feedback module, the contact of described first rly. is connected with described compressor, described first rly. disconnects or adhesive according to the level signal of described air-conditioning switch signal and described blower fan feedback module, to control whether described compressor starts work;
One end of described entire car controller is connected with described compressor, the other end is connected with described condenser fan by described 2nd rly., described entire car controller is according to the working order of described compressor, control described 2nd rly. adhesive or disconnection, to control whether described condenser fan starts refrigeration.
2. electric automobile air-conditioning system according to claim 1, it is characterised in that, also comprise: well heater, thermoswitch processed and the 3rd rly.;
One end of described well heater is fed back module with described blower fan and is connected, the other end is connected with described thermoswitch processed by described 3rd rly., and described well heater starts or stops work according to the switch state of level signal and described thermoswitch processed that described blower fan feeds back module.
3. electric automobile air-conditioning system according to claim 2, it is characterized in that, also comprise: the 4th rly. and power cell, the coil of described 4th rly. is connected with described thermoswitch processed by described 3rd rly., and the contact of described 4th rly. is connected between described power cell and described well heater.
4. electric automobile air-conditioning system according to claim 3, it is characterised in that, also comprise: the temperature controller being connected between described air-conditioning switch and described first relay1 coil, described temperature controller also feeds back module with described blower fan and is connected.
5. electric automobile air-conditioning system according to claim 4, it is characterised in that, also comprise: the binary pressure switch being connected between described first relay1 coil and described temperature controller.
6. electric automobile air-conditioning system according to claim 5, it is characterized in that, also comprise: for described electric automobile air-conditioning system provides the low pressure store battery of control voltage, one end ground connection of described low pressure store battery, the other end is connected with the 3rd rly. with described 2nd rly. respectively.
7. electric automobile air-conditioning system according to claim 6, it is characterised in that: described well heater is thermistor heater, and is provided with temperature switch on described thermistor heater.
8. electric automobile air-conditioning system according to claim 7, it is characterised in that: the contact of described gas blower and described first rly. is connected to the ground respectively.
9. electric automobile air-conditioning system according to claim 5, it is characterised in that: the coil of described 2nd rly. is connected between described entire car controller and ground, and the contact of described 2nd rly. is connected between low pressure store battery and described condenser fan.
10. electric automobile air-conditioning system according to claim 5, it is characterized in that: one end of the coil of described 3rd rly. is connected with described well heater, the other end is connected rear ground connection successively with described thermoswitch processed, the contact of described 3rd rly., the coils connected in series of the 4th rly..
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104260616B (en) * | 2014-10-24 | 2016-12-07 | 北京长安汽车工程技术研究有限责任公司 | A kind of electric automobile heating system and method |
| CN104773047B (en) * | 2015-03-17 | 2018-05-08 | 河南银泰新能源汽车有限公司 | Air conditioner of electric vehicle panel control system and its control method |
| CN105365526B (en) * | 2015-10-21 | 2017-10-24 | 成都雅骏新能源汽车科技股份有限公司 | A kind of control circuit of electric vehicle cold storage and air conditioner |
| CN105346354B (en) * | 2015-10-27 | 2018-05-04 | 北京新能源汽车股份有限公司 | Air conditioning system of pure electric vehicle and control method |
| CN106627032B (en) * | 2016-10-21 | 2023-04-14 | 林凯强 | Air-conditioning compressor for vehicle Intelligent controller |
| CN106976379A (en) * | 2017-05-02 | 2017-07-25 | 安徽江淮松芝空调有限公司 | A kind of automobile air conditioner control system |
| CN110696584A (en) * | 2018-12-29 | 2020-01-17 | 长城汽车股份有限公司 | HVH driving method of electric vehicle, vehicle-mounted air conditioner controller and vehicle control unit |
| CN110271384B (en) * | 2019-06-11 | 2020-07-14 | 东风汽车股份有限公司 | Pure electric vehicle air conditioner control system and method |
| CN113432269A (en) * | 2021-05-28 | 2021-09-24 | 青岛海尔空调电子有限公司 | Control method of refrigeration and freezing unit and refrigeration and freezing unit |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
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