CN201827991U - Automobile air-conditioning mode switching device - Google Patents
Automobile air-conditioning mode switching device Download PDFInfo
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- CN201827991U CN201827991U CN2010205349410U CN201020534941U CN201827991U CN 201827991 U CN201827991 U CN 201827991U CN 2010205349410 U CN2010205349410 U CN 2010205349410U CN 201020534941 U CN201020534941 U CN 201020534941U CN 201827991 U CN201827991 U CN 201827991U
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Abstract
The utility model provides an automobile air-conditioning mode switching device which belongs to the technical field of vehicles, and solves the problem that a traditional internal air quality monitoring device cannot thoroughly solve the circumstance in which the oxygen concentration in a vehicle is too low. The automobile air-conditioning mode switching device comprises a central processor, a sensor and a control circuit; the sensor and the control circuit are connected with the central processor; the sensor sends a detected signal to the central processor; the central processor processes the received detected signal so as to determine the actual oxygen concentration in the vehicle and compare the actual oxygen concentration value with the minimum oxygen concentration value set in the central processor; and when the actual oxygen concentration value is lower than the set minimum oxygen concentration valve, the central processor sends a control signal to the control circuit so as to control an air conditioner and switch the air conditioner to an outer circulation operation mode. The automobile air-conditioning mode switching device can thoroughly solve the problem that the oxygen concentration in the vehicle is too low under all circumstances.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of air conditioning for automobiles mode-changeover device.
Background technology
Automobile is irreplaceable a kind of vehicles in people's daily life, and it is widely used in the every field.And because of external world's climatic factor such as blow, rain, the driver tends to all vehicle windows of closing automobile when driving a car, so that be not subjected to extraneous climatic effect in the car.Yet the behavior meeting of closing automobile door and window makes sluggish in air circulation in the car, and closing the doors and windows for a long time more to make the oxygen concentration in the car reduce, and the person and traffic safety are brought great hidden danger.
For this reason, people design air quality monitoring device in a kind of car, and have applied for that (its application number is Chinese patent: 200620042588.8; Its publication number is: CN2916711Y), this device comprises sensor, and the output of sensor is connected with the input of amplifying circuit, and the output of amplifying circuit is connected with the input of comparison circuit, the output of comparison circuit is connected with the control end of relay, and the switch of relay is connected with air-conditioning.This device is by oxygen or gas concentration lwevel in the sensor sensing automobile, flowing to comparison circuit after signal being amplified through amplifying circuit compares again, after the contrast, when oxygen concentration is crossed low or gas concentration lwevel when too high, the switch closure of relay is opened air-conditioning, carries out air exchange with the external world, alleviate oxygen problem in the car, improved the not enough and potential safety hazard that causes of oxygen in the car.
But, the control section of this device has but only used a relay to control the switch of air-conditioning, when driver's closing automobile door and window and open in the air-conditioning and circulate, oxygen concentration in the car is reduced to the minimum oxygen concentration value of needed by human body when following, this device can't switch to the operational mode of air-conditioning the outer circulation pattern, at this moment, use this device can't solve the low excessively problem of oxygen concentration in the car.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, is in the air conditioning for automobiles mode-changeover device of the operational mode of the air-conditioning that all can automatically switch under which kind of state to outer circulation no matter proposed a kind of air-conditioning.
The purpose of this utility model can realize by following technical proposal: a kind of air conditioning for automobiles mode-changeover device, it is characterized in that, this device comprises central processing unit, be used to detect the sensor of oxygen concentration in the automobile and the control circuit that is used to switch the operation of air conditioner pattern, described sensor and control circuit all link with central processing unit, described sensor sends to central processing unit with detected signal, described central processing unit is handled the detection signal that receives, to determine the actual oxygen concentration numerical value in the automobile, and the minimum oxygen concentration numerical value of setting in this actual oxygen concentration numerical value and the central processing unit compared, when above-mentioned actual oxygen concentration numerical value was lower than the minimum oxygen concentration numerical value of setting, described central processing unit transmitted control signal and controls air-conditioning to above-mentioned control circuit it is switched to the operational mode of outer circulation.
The car owner starts after the automobile, this device is started working, sensor is the interior oxygen concentration of inspection vehicle constantly, and detection signal sent to central processing unit, be provided with the minimum oxygen concentration numerical value (a little more than needed by human body concentration) that is allowed in the car in the central processing unit, central processing unit is converted to the data that can be used for comparison with the detection signal that receives, and compares with the minimum oxygen concentration numerical value that is allowed.When actual oxygen concentration numerical value is lower than the minimum oxygen concentration numerical value of having set, no matter which kind of operational mode air-conditioning is in, central processing unit transmits control signal to control circuit, convert the operational mode of outer circulation to by control circuit control air-conditioning, when actual oxygen concentration numerical value was higher than the minimum oxygen concentration numerical value of having set, central processing unit did not transmit control signal.
In above-mentioned a kind of air conditioning for automobiles mode-changeover device, described central processing unit compares the maximum oxygen gas concentration numerical value of actual oxygen concentration numerical value and setting, when actual oxygen concentration numerical value meets or exceeds the maximum oxygen gas concentration numerical value of setting, described central processing unit transmits control signal to control circuit, and the control air-conditioning switches back original mode of operation.
This device switches to air-conditioning after the operational mode of outer circulation from original operational mode, carry out air exchange with the external world in the car, oxygen concentration is gone up gradually in the car, sensor constantly sends to central processing unit with detected information by detection signal, central processing unit compares the maximum oxygen gas concentration numerical value of actual oxygen concentration numerical value and setting, when actual oxygen concentration numerical value meets or exceeds the maximum oxygen gas concentration numerical value of setting, central processing unit transmits control signal to control circuit, switch back original operational mode by its control air-conditioning, when actual oxygen concentration numerical value did not reach maximum oxygen gas concentration numerical value, central processing unit did not transmit control signal.
In above-mentioned a kind of air conditioning for automobiles mode-changeover device, also be orderly connected with damping conversion module, linearization process module and A/D (modulus) modular converter between described sensor and the central processing unit.The resistance of sensor changes along with the variation of the oxygen concentration of outside, and the change in resistance situation converts voltage signal to by the damping conversion module, and voltage signal changes into digital quantity and enters central processing unit and handle after linearization process and analog-to-digital conversion.
In above-mentioned a kind of air conditioning for automobiles mode-changeover device, described sensor comprises TiO
2Oxygen-sensing sensor.TiO
2The resistance of oxygen-sensing sensor diminishes along with the reduction of external oxygen concentration.
In above-mentioned a kind of air conditioning for automobiles mode-changeover device, described central processing unit comprises the AT89C51 single-chip microcomputer.
In above-mentioned a kind of air conditioning for automobiles mode-changeover device, also be connected with light-emitting diode display on the described central processing unit with warning mark.When central processing unit transmitted control signal control air-conditioning running mode switching, this central processing unit transmitted control signal simultaneously to light-emitting diode display, controls it and lights warning mark.
In above-mentioned a kind of air conditioning for automobiles mode-changeover device, also be connected with loudspeaker on the described central processing unit.When warning mark was lighted, central processing unit also transmitted control signal to loudspeaker, controlled its sounding alarm.
Compared with prior art, this air conditioning for automobiles mode-changeover device has the following advantages:
No matter 1, be in which kind of state before this air conditioning for automobiles mode-changeover device air conditioning for automobiles, as long as the oxygen concentration in the car is lower than setting value, air-conditioning can be switched to the operational mode of outer circulation, solved the low and hidden danger brought of Yin Chenei oxygen concentration up hill and dale.
2, this air conditioning for automobiles mode-changeover device also gives user label prompting and voice suggestion in automatic switchover operation of air conditioner pattern, and the user is got more information about oxygen concentration in the car.
Description of drawings
Fig. 1 is the theory structure schematic diagram of this air conditioning for automobiles mode-changeover device.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, this air conditioning for automobiles mode-changeover device comprise central processing unit and with joining sensor of central processing unit and control circuit, sensor is used to detect the automotive interior oxygen concentration, control circuit is used to switch the operational mode of air-conditioning, also be orderly connected with damping conversion module, linearization process module and A/D modular converter between sensor and the central processing unit, also be connected with light-emitting diode display and loudspeaker on the central processing unit with warning mark.In the present embodiment, central processing unit is the AT89C51 single-chip microcomputer, and sensor is TiO
2Oxygen-sensing sensor.
After being installed in this air conditioning for automobiles mode-changeover device on the automobile, as long as the car owner starts automobile, the work of promptly switching on of this device, provide electric energy by central processing unit to sensor, sensor is the interior oxygen concentration of inspection vehicle constantly, and the oxygen concentration situation of change is converted into change in resistance, and oxygen concentration is low more, and resistance is low more.The change in resistance situation of sensor self converts voltage change signal to by the damping conversion module, by the linearization process module this voltage change signal is carried out linear compensation, and the voltage change signal behind the linear compensation sent to the A/D modular converter, convert the voltage change analog quantity that receives to digital quantity and be input in the central processing unit by the A/D modular converter.
Actual oxygen concentration numerical value compares with the minimum oxygen concentration numerical value of having set (a little more than needed by human body concentration) in the detected car of sensor that central processing unit is changed out the A/D modular converter.When actual oxygen concentration numerical value was lower than minimum oxygen concentration numerical value, no matter air-conditioning is in the operational mode of closed condition or interior circulation, central processing unit transmitted control signal to control circuit, was switched to the operational mode of outer circulation by control circuit control air-conditioning.When actual oxygen concentration numerical value was higher than minimum oxygen concentration numerical value, central processing unit did not process, the duty before air-conditioning keeps.
When the oxygen concentration of central processing unit Yin Chenei is crossed low and control after air-conditioning switches to the operational mode of outer circulation, the oxygen concentration bottom out in the Che Nei and the extraneous air exchange that takes place, car, and sensor still remains on the duty that detects constantly.At this moment, central processing unit compares the actual oxygen concentration numerical value that receives and the maximum oxygen gas concentration numerical value (near the oxygen concentration of automobile external) of setting.When actual oxygen concentration numerical value reached or be higher than maximum oxygen gas concentration numerical value, central processing unit transmitted control signal to control circuit, the duty before the control air-conditioning switches back, the i.e. operational mode of closed condition or interior circulation.When actual oxygen concentration numerical value was lower than maximum oxygen gas concentration numerical value, central processing unit did not process, and air-conditioning still keeps present duty.
Oxygen concentration is crossed low and by in the central processing unit control air-conditioning running mode switching in sensor detects car, central processing unit also transmits control signal respectively to light-emitting diode display and loudspeaker, the control light-emitting diode display is lighted the alarm of sounding of warning mark and loudspeaker, the low excessively situation of prompting driver's oxygen concentration.
In addition, also can a sensor be set, be used to detect the automobile external oxygen concentration, and this oxygen concentration information is sent to central processing unit, be used for substituting the maximum oxygen gas concentration numerical value of setting in the central processing unit at automobile external.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (7)
1. air conditioning for automobiles mode-changeover device, it is characterized in that, this device comprises central processing unit, be used to detect the sensor of oxygen concentration in the automobile and the control circuit that is used to switch the operation of air conditioner pattern, described sensor and control circuit all link with central processing unit, described sensor sends to central processing unit with detected signal, described central processing unit is handled the detection signal that receives, to determine the actual oxygen concentration numerical value in the automobile, and the minimum oxygen concentration numerical value of setting in this actual oxygen concentration numerical value and the central processing unit compared, when above-mentioned actual oxygen concentration numerical value was lower than the minimum oxygen concentration numerical value of setting, described central processing unit transmitted control signal and controls air-conditioning to above-mentioned control circuit it is switched to the operational mode of outer circulation.
2. a kind of air conditioning for automobiles mode-changeover device according to claim 1, it is characterized in that, described central processing unit compares the maximum oxygen gas concentration numerical value of actual oxygen concentration numerical value and setting, when actual oxygen concentration numerical value meets or exceeds the maximum oxygen gas concentration numerical value of setting, described central processing unit transmits control signal to control circuit, and the control air-conditioning switches back original mode of operation.
3. a kind of air conditioning for automobiles mode-changeover device according to claim 1 and 2 is characterized in that, also is orderly connected with damping conversion module, linearization process module and A/D (modulus) modular converter between described sensor and the central processing unit.
4. a kind of air conditioning for automobiles mode-changeover device according to claim 1 and 2 is characterized in that described sensor comprises TiO
2Oxygen-sensing sensor.
5. a kind of air conditioning for automobiles mode-changeover device according to claim 1 and 2 is characterized in that described central processing unit comprises the AT89C51 single-chip microcomputer.
6. a kind of air conditioning for automobiles mode-changeover device according to claim 1 and 2 is characterized in that, also is connected with the light-emitting diode display with warning mark on the described central processing unit.
7. a kind of air conditioning for automobiles mode-changeover device according to claim 1 and 2 is characterized in that, also is connected with loudspeaker on the described central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205349410U CN201827991U (en) | 2010-09-19 | 2010-09-19 | Automobile air-conditioning mode switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205349410U CN201827991U (en) | 2010-09-19 | 2010-09-19 | Automobile air-conditioning mode switching device |
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| Publication Number | Publication Date |
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| CN201827991U true CN201827991U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205349410U Expired - Fee Related CN201827991U (en) | 2010-09-19 | 2010-09-19 | Automobile air-conditioning mode switching device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848999A (en) * | 2012-09-18 | 2013-01-02 | 浙江吉利汽车研究院有限公司杭州分公司 | Intelligent monitoring and controlling method and device for oxygen content in car |
| CN103029549A (en) * | 2012-09-26 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | In-car air conditioning system |
| CN111965128A (en) * | 2020-07-03 | 2020-11-20 | 珠海格力电器股份有限公司 | Non-dispersive infrared carbon dioxide sensor control method, system, medium and application |
| CN112762588A (en) * | 2021-02-22 | 2021-05-07 | 青岛海尔空调器有限总公司 | Control method of air conditioner indoor unit and air conditioner indoor unit |
| CN112895839A (en) * | 2021-03-17 | 2021-06-04 | 温州盘虎新能源有限公司 | Circulating air outlet system of automobile air conditioner and circulating air outlet control method |
-
2010
- 2010-09-19 CN CN2010205349410U patent/CN201827991U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848999A (en) * | 2012-09-18 | 2013-01-02 | 浙江吉利汽车研究院有限公司杭州分公司 | Intelligent monitoring and controlling method and device for oxygen content in car |
| CN102848999B (en) * | 2012-09-18 | 2014-11-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Intelligent monitoring and controlling method and device for oxygen content in car |
| CN103029549A (en) * | 2012-09-26 | 2013-04-10 | 浙江吉利汽车研究院有限公司杭州分公司 | In-car air conditioning system |
| CN103029549B (en) * | 2012-09-26 | 2015-03-25 | 浙江吉利汽车研究院有限公司杭州分公司 | In-car air conditioning system |
| CN111965128A (en) * | 2020-07-03 | 2020-11-20 | 珠海格力电器股份有限公司 | Non-dispersive infrared carbon dioxide sensor control method, system, medium and application |
| CN111965128B (en) * | 2020-07-03 | 2023-08-29 | 珠海格力电器股份有限公司 | Non-spectroscopic infrared carbon dioxide sensor control method, system, medium and application |
| CN112762588A (en) * | 2021-02-22 | 2021-05-07 | 青岛海尔空调器有限总公司 | Control method of air conditioner indoor unit and air conditioner indoor unit |
| CN112895839A (en) * | 2021-03-17 | 2021-06-04 | 温州盘虎新能源有限公司 | Circulating air outlet system of automobile air conditioner and circulating air outlet control method |
| CN112895839B (en) * | 2021-03-17 | 2024-03-08 | 湖北美瑞特空调系统有限公司 | Circulating air outlet system of automobile air conditioner and circulating air outlet control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20130919 |