CN102887048B - Circuit of refrigerating system of air conditioner of car - Google Patents
Circuit of refrigerating system of air conditioner of car Download PDFInfo
- Publication number
- CN102887048B CN102887048B CN201210427290.9A CN201210427290A CN102887048B CN 102887048 B CN102887048 B CN 102887048B CN 201210427290 A CN201210427290 A CN 201210427290A CN 102887048 B CN102887048 B CN 102887048B
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- switch
- diode
- resistance
- air
- conditioning
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- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000004378 air conditioning Methods 0.000 claims description 36
- 238000007664 blowing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
Abstract
The invention discloses a circuit of a refrigerating system of an air conditioner of a car. The circuit of the refrigerating system of the air conditioner of the car comprises a storage battery, an igniting switch, a pressure switch, an air conditioner and air blower combined switch, an evaporator temperature switch, an air conditioner relay, a compressor electromagnetic clutch, a cooling fan motor and an air blower motor, wherein the air conditioner and air blower combined switch comprises three resistors and three diodes to form four contacts; a positive electrode of the storage battery is connected with the igniting switch, and is then connected to the control end of the air conditioner and air blower combined switch; the first contact of the air conditioner and air blower combined switch is sequentially connected with the pressure switch and the evaporator temperature switch in series, and is then connected to the control circuit input end of the air conditioner relay; meanwhile, the positive electrode of the storage battery is connected to the input end of a working circuit of the air conditioner relay, and the output end of the working circuit of the air conditioner is respectively connected with the power end of the compressor electromagnetic clutch and the power end of the cooling fan motor; and the fourth contact of the air conditioner and air blower combined switch is connected to the power end of the air blower motor.
Description
Technical field
The present invention relates to a kind of automobile air conditioning refrigerating system circuit.
Background technology
On automobile, in traditional automobile air conditioning refrigerating system circuit, the switch of blowing engine and air-conditioning is independent switch, not only uses inconvenience, and if forget that opening blowing engine will cause the icing phenomenon of evaporator while turning on the aircondition.
Summary of the invention
For above-mentioned prior art, technical matters to be solved by this invention is, a kind of automobile air conditioning refrigerating system circuit that solves the problem that air conditioning switch and blower switch separate is provided.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of automobile air conditioning refrigerating system circuit, comprises storage battery, ignition lock, pressure switch, air-conditioning and blower unit combination switch, evaporator temperature switch, AAir Conditioner Relay, electromagnetic clutch for compressor, cooling fan motor, blower motor; Wherein, described air-conditioning and blower unit combination switch comprise the first resistance, the second resistance, the 3rd resistance, the first diode, the second diode, the 3rd diode; Wherein, described the first resistance, the second resistance, the 3rd resistance are connected in series successively, and described the first diode, the second diode, the 3rd diode are connected in parallel on respectively the two ends of described the first resistance, the second resistance, the 3rd resistance successively; Wherein, the anode of the negative electrode of described the first diode, the first diode, the anode of the anode of the second diode, the 3rd diode respectively as first, second, third, fourth contact of this air-conditioning and blower unit combination switch; The control end that connects described air-conditioning and blower unit combination switch after the positive pole series connection ignition lock of described storage battery, connect successively and are connected the control circuit input end of described AAir Conditioner Relay after described pressure switch, evaporator temperature switch in air-conditioning and the first contact of blower unit combination switch; Meanwhile, the positive pole of described storage battery is connected to the input end of the pull up circuit of described AAir Conditioner Relay; The mouth of the pull up circuit of described AAir Conditioner Relay connects respectively the power end of described electromagnetic clutch for compressor and cooling fan motor; Described air-conditioning is connected the power end of described blower motor with the 4th contact of blower unit combination switch.
As improvement of the present invention, described pressure switch is double pressure switch, and its lower limit switching value is 0.2MPa, and upper limit switching value is 3MPa.
As a further improvement on the present invention, described evaporator temperature switch is more than 0 ℃ closed, and 0 ℃ disconnects below.
Major advantage of the present invention is that air conditioning switch and blower switch are combined, and causes the icing phenomenon of evaporator, and simplify the structure while effectively preventing from turning on the aircondition because forgetting out blowing engine, has reduced cost.
Accompanying drawing explanation
Fig. 1 is a kind of automobile air conditioning refrigerating system circuit figure.
The specific embodiment
For further setting forth the present invention, reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As described in Figure 1, an automobile air conditioning refrigerating system circuit, comprises storage battery 1, ignition lock 2, pressure switch 3, air-conditioning and blower unit combination switch 4, evaporator temperature switch 5, AAir Conditioner Relay 6, electromagnetic clutch for compressor 7, cooling fan motor 8, blower motor 9.Wherein, air-conditioning and blower unit combination switch 4 comprise the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the first diode Vd1, the second diode Vd2, the 3rd diode Vd3; Wherein, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3 are connected in series successively, and the first diode Vd1, the second diode Vd2, the 3rd diode Vd3 are connected in parallel on respectively the two ends of the first resistance R 1, the second resistance R 2 and the 3rd resistance R 3 successively.Wherein, the anode of the negative electrode of the first diode Vd1, the first diode Vd1, the anode of the anode of the second diode Vd2, the 3rd diode Vd3 respectively as first, second, third, fourth contact of this air-conditioning and blower unit combination switch 4.The positive pole series connection rear connection air-conditioning of ignition lock 2 of storage battery 1 and the control end of blower unit combination switch 4, air-conditioning and the first contact of blower unit combination switch 4 connect successively pressure switch 3, the rear control circuit input end that is connected AAir Conditioner Relay 6 of evaporator temperature switch 5.Meanwhile, the positive pole of storage battery 1 is connected to the input end of the pull up circuit of AAir Conditioner Relay 6.The mouth of the pull up circuit of AAir Conditioner Relay 6 connects respectively the power end of electromagnetic clutch for compressor 7 and cooling fan motor 8.Air-conditioning is connected the power end of blower motor 9 with the 4th contact of blower unit combination switch 4.Wherein, pressure switch 3 is double pressure switch, and its lower limit switching value is 0.2MPa, and upper limit switching value is 3MPa; Evaporator temperature switch 5 is more than 0 ℃ closed, and 0 ℃ disconnects below.
In the above-described embodiments, pressure switch 3 is arranged on the pressure duct of refrigeration system, pressure switch 3 is double pressure switch, when system pressure higher than 0.2MPa during lower than 3MPa switch be closed, otherwise, switch disconnects, and its effect is to prevent refrigeration system hypertonia or too low, plays safety guard-safeguard effect; Evaporator temperature switch 5 is arranged near evaporator, and 0 ℃ is above closed, 0 ℃ of following disconnection, and its effect is that the device surface that avoids evaporating freezes.
When not turning on the aircondition, be air-conditioning and blower unit combination switch 4 when OFF position, a/c system is not worked.
Ignition lock 2 closures, when air-conditioning and blower unit combination switch 4 are during in 1 gear, power supply is connected blower motor 9 through R1, R2, R3, blowing engine low speed rotation, meanwhile, when pressure switch 3 and evaporator temperature switch 5 satisfy condition closure, connect the control circuit of AAir Conditioner Relay 6; When air-conditioning and blower unit combination switch 4 are during in 2 gear, power supply is connected blower motor 9 through R2, R3, blowing engine middling speed turns, simultaneously, when pressure switch 3 and evaporator temperature switch 5 satisfy condition closure, power supply, through Vd1 diode, pressure switch 3, evaporator temperature switch 5, is connected the control circuit of AAir Conditioner Relay 6; When air-conditioning and blower unit combination switch 4 are during in 3 gear, power supply is connected blower motor 9 through R3, blowing engine turns at a high speed, simultaneously, when pressure switch 3 and evaporator temperature switch 5 satisfy condition closure, power supply, through Vd2 diode, Vd1 diode, pressure switch 3, evaporator temperature switch 5, is connected the control circuit of AAir Conditioner Relay 6; When air-conditioning and blower unit combination switch 4 are during in 4 gear, power supply is directly connected blower motor 9, blowing engine turns the most at a high speed, simultaneously, when pressure switch 3 and evaporator temperature switch 5 satisfy condition closure, power supply, through Vd3 diode, Vd2 diode, Vd1 diode, pressure switch 3, evaporator temperature switch 5, is connected the control circuit of AAir Conditioner Relay 6.At this moment, the pull up circuit switch adhesive of AAir Conditioner Relay 6, electromagnetic clutch for compressor 7 adhesives, compressor operating, cooling fan motor 8 is also worked, and to condenser, dispels the heat.
By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken possessing those of ordinary skills, can also depart under the prerequisite of aim of the present invention and make various variations.
Claims (3)
1. an automobile air conditioning refrigerating system circuit, is characterized in that: comprise storage battery (1), ignition lock (2), pressure switch (3), air-conditioning and blower unit combination switch (4), evaporator temperature switch (5), AAir Conditioner Relay (6), electromagnetic clutch for compressor (7), cooling fan motor (8), blower motor (9); Wherein, described air-conditioning and blower unit combination switch (4) comprise the first resistance (R1), the second resistance (R2), the 3rd resistance (R3), the first diode (Vd1), the second diode (Vd2), the 3rd diode (Vd3); Wherein, described the first resistance (R1), the second resistance (R2), the 3rd resistance (R3) are connected in series successively, and described the first diode (Vd1), the second diode (Vd2), the 3rd diode (Vd3) are connected in parallel on respectively the two ends of described the first resistance (R1), the second resistance (R2) and the 3rd resistance (R3) successively; Wherein, the anode of the negative electrode of described the first diode (Vd1), the first diode (Vd1), the anode of the anode of the second diode (Vd2), the 3rd diode (Vd3) respectively as first, second, third, fourth contact of this air-conditioning and blower unit combination switch (4); The control end that connects described air-conditioning and blower unit combination switch (4) after the positive pole series connection ignition lock (2) of described storage battery (1), connect successively described pressure switch (3), evaporator temperature switch (5) of air-conditioning and the first contact of blower unit combination switch (4) is connected the control circuit input end of described AAir Conditioner Relay (6) afterwards; Meanwhile, the positive pole of described storage battery (1) is connected to the input end of the pull up circuit of described AAir Conditioner Relay (6); The mouth of the pull up circuit of described AAir Conditioner Relay (6) connects respectively the power end of described electromagnetic clutch for compressor (7) and cooling fan motor (8); Described air-conditioning is connected the power end of described blower motor (9) with the 4th contact of blower unit combination switch (4).
2. automobile air conditioning refrigerating system circuit according to claim 1, is characterized in that: described pressure switch (3) is double pressure switch, and its lower limit switching value is 0.2MPa, and upper limit switching value is 3MPa.
3. automobile air conditioning refrigerating system circuit according to claim 1, is characterized in that: described evaporator temperature switch (5) is more than 0 ℃ closed, and 0 ℃ disconnects below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210427290.9A CN102887048B (en) | 2012-10-31 | 2012-10-31 | Circuit of refrigerating system of air conditioner of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210427290.9A CN102887048B (en) | 2012-10-31 | 2012-10-31 | Circuit of refrigerating system of air conditioner of car |
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| Publication Number | Publication Date |
|---|---|
| CN102887048A CN102887048A (en) | 2013-01-23 |
| CN102887048B true CN102887048B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210427290.9A Active CN102887048B (en) | 2012-10-31 | 2012-10-31 | Circuit of refrigerating system of air conditioner of car |
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| CN (1) | CN102887048B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014205805A1 (en) * | 2013-06-28 | 2014-12-31 | Ingersoll Rand (China) Industrial Technologies | Overload protection for vehicle hvac system |
| CN103604190B (en) * | 2013-10-24 | 2016-09-28 | 安徽江淮汽车股份有限公司 | A kind of control method of ternary pressure switch for automotive air conditioner |
| CN105444369B (en) * | 2014-08-14 | 2019-07-19 | 广州汽车集团股份有限公司 | Automotive air-conditioning system |
| CN113682105B (en) * | 2021-08-27 | 2023-03-14 | 安徽江淮汽车集团股份有限公司 | Intelligent automobile cooling and heating adjusting system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5916965B2 (en) * | 1983-03-16 | 1984-04-18 | 松下電器産業株式会社 | Air blow control device for automotive air conditioners |
| KR100484630B1 (en) * | 2002-09-27 | 2005-04-22 | 모딘코리아 유한회사 | Compressor operation system for airconditioner of vehicle |
| KR100786969B1 (en) * | 2006-10-31 | 2007-12-17 | 주식회사 현대오토넷 | Control system of air conditioner for cars |
| CN202863086U (en) * | 2012-10-31 | 2013-04-10 | 无锡商业职业技术学院 | Automotive air conditioner refrigerating system circuit |
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| CN102887048A (en) | 2013-01-23 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160224 Address after: 423000 Chenzhou City, Hunan province Bailu town high tech Industrial Park, Taiwan Industrial Park 8 Patentee after: CHENZHOU ZHONGMA AUTOMOBILE AIR-CONDITIONING CO.,LTD. Address before: 214153 No. 809 Hu Hu Road, Huishan District, Jiangsu, Wuxi Patentee before: Wuxi Institute of Commerce |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201125 Address after: 224000 604, building 31, Hongya Mingju, Hede Town, Sheyang County, Yancheng City, Jiangsu Province Patentee after: Liu Jingjing Address before: 423000 Chenzhou City, Hunan province Bailu town high tech Industrial Park, Taiwan Industrial Park 8 Patentee before: CHENZHOU ZHONGMA AUTOMOBILE AIR-CONDITIONING CO.,LTD. |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130123 Assignee: Yancheng Yushi Weiheng Information Technology Co.,Ltd.|SHEYANG JINHE CELLULOSE Co.,Ltd.|Yancheng Antong Fiber Co.,Ltd.|Jiangsu Nanxiang Rubber Products Co.,Ltd. Assignor: Liu Jingjing Contract record no.: X2023980050799 Denomination of invention: A Circuit for Automotive Air Conditioning Refrigeration System Granted publication date: 20141015 License type: Common License Record date: 20231208 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130123 Assignee: Jiangsu Meicun Food Co.,Ltd.|Jiangsu Pinwu Food Co.,Ltd.|SHEYANG LIUHE FEED CO.,LTD.|Yancheng Dabei Agricultural Feed Co.,Ltd. Assignor: Liu Jingjing Contract record no.: X2023980053566 Denomination of invention: A Circuit for Automotive Air Conditioning Refrigeration System Granted publication date: 20141015 License type: Common License Record date: 20231223 |