CN202769882U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN202769882U CN202769882U CN 201220405822 CN201220405822U CN202769882U CN 202769882 U CN202769882 U CN 202769882U CN 201220405822 CN201220405822 CN 201220405822 CN 201220405822 U CN201220405822 U CN 201220405822U CN 202769882 U CN202769882 U CN 202769882U
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Abstract
The utility model discloses an air conditioner and relates to the filed of household appliances. The air conditioner comprises a main control unit, a detection unit and a purification unit, wherein the detection unit and the purification unit are connected with the main control unit. The detection unit is used for detecting harmful matter content in air and sends a detection result to the main control unit. The main control unit is used for judging whether the harmful matter content exceeds a preset value according to the detection result, and when the harmful matter content exceeds the preset value, the main control unit sends an air purification command to the purification unit. The purification unit is used for carrying out working of fresh air changing and/or formaldehyde removing according to the air purification command. The detection unit detects the harmful matter content in the air, and the air conditioner automatically controls a fresh air changing device and a formaldehyde removing device according to an air pollution grade, so that the air conditioner can purify the harmful matter content in the air, and further solves the problem that air purification time is not easy to control. Under the condition of guaranteeing air quality, the air conditioner can reduce energy waste and prolong service life.
Description
Technical field
The utility model relates to an electro-technical field, particularly a kind of air-conditioning.
Background technology
Though existing air-conditioning has inletting fresh air and function of removing formaldehyde, owing to can not measure the content of harmful substance in the air, inletting fresh air and function of removing formaldehyde need manually opened and close.Simultaneously, because existing air-conditioning can't show the air quality grade, therefore open and close the bad grasp of time of inletting fresh air and function of removing formaldehyde, that can only depend on the people feels to judge IAQ, and deviation is very large.Like this, will cause air-conditioning inletting fresh air and function of removing formaldehyde service time long or too short, overlong time then wastes energy, and affects air-conditioning service life; Time, too short then air quality was not up to standard, affected health.
The utility model content
The technical problem that (one) will solve
The technical problems to be solved in the utility model is: how a kind of air-conditioning is provided, automatically carrying out air cleaning according to air quality, thereby reduces energy waste, improve air-conditioning service life.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of air-conditioning, and it comprises: main control unit, and the detecting unit and the clean unit that are connected with described main control unit;
Described detecting unit for detection of harmful substance contents in the air, and sends to described main control unit with testing result;
Described main control unit is used for judging according to testing result whether harmful substance contents surpasses predetermined value, and sends the air cleaning instruction to described clean unit when harmful substance contents surpasses predetermined value;
Described clean unit is used for carrying out inletting fresh air and/or removing the formaldehyde operation according to described air cleaning instruction.
Wherein, described detecting unit comprises: process chip IC, triode Q1, sensor S1 and the second resistance R 2;
The 2nd pin of described process chip IC connects described main control unit with the 5th pin, and the 3rd pin connects the 4th terminal of described sensor S1, the 4th pin ground connection, and the 6th pin connects the base stage of described triode Q1, and the 8th pin connects power supply;
The colelctor electrode of described triode Q1 connects the 2nd terminal of described sensor S1, grounded emitter;
The 1st terminal of described sensor S1 all connects described power supply with the 3rd terminal;
The 1st end of described the second resistance R 2 connects the 4th terminal of described sensor S1, the 2nd end ground connection.
Wherein, described detecting unit also comprises: the first resistance R 1, the 3rd resistance R 3, the 4th resistance R 4, and the second capacitor C 2;
The 1st end of described the first resistance R 1 connects the base stage of described triode Q1, the 2nd end ground connection;
The 1st end of described the 4th resistance R 4 connects the 6th pin of described process chip IC, and the 2nd end connects the base stage of described triode Q1;
The 1st end of described the 3rd resistance R 3 connects the 4th terminal of described sensor S1, and the 2nd end connects the 3rd pin of described process chip IC and the 1st end of described the second capacitor C 2;
The 2nd end ground connection of described the second capacitor C 2.
Wherein, described clean unit comprises: air refreshing device and except formaldehyde plant;
Described air refreshing device is used for carrying out the inletting fresh air operation according to described air cleaning instruction;
Described except formaldehyde plant, be used for removing the formaldehyde operation according to described air cleaning instruction.
Wherein, described air-conditioning also comprises: display unit;
Described display unit connects described main control unit, is used for showing current air quality grade according to described testing result.
Wherein, described air-conditioning also comprises: temperature conditioning unit;
Described temperature conditioning unit connects described main control unit, is used for regulating indoor air temperature.
Wherein, described main control unit adopts microprocessor.
(3) beneficial effect
Air-conditioning described in the utility model, detect harmful substance contents in the air by detecting unit, and according to the air pollution grade automatically control air refreshing device and except the formaldehyde plant operation to purify air, thereby avoided not wield problem of air cleaning time, guarantee in the situation of air quality, reduce energy waste, improve air-conditioning service life.
Description of drawings
Fig. 1 is the modular structure schematic diagram of the described air-conditioning of the utility model embodiment;
Fig. 2 is the connecting circuit figure of described detecting unit and described main control unit;
Fig. 3 is the operation principle isoboles of inductor part in the sensor;
Fig. 4 is the operating voltage of the described sensor of the utility model embodiment and the corresponding relation figure of dusty gas.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Fig. 1 is the modular structure schematic diagram of the described air-conditioning of the utility model embodiment, as shown in Figure 1, described air-conditioning comprises: main control unit 400, and the detecting unit 100, clean unit 200, display unit 300, temperature conditioning unit 500 and the power subsystem 600 that are connected with described main control unit 400.
Described detecting unit 100 for detection of harmful substance contents in the air, and sends to described main control unit 400 with testing result.Described harmful substance comprises: carbon monoxide, formaldehyde, toluene etc.
Fig. 2 is the connecting circuit figure of described detecting unit and described main control unit, as shown in Figure 2, described detecting unit 100 comprises: process chip IC, triode Q1, sensor S1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4 and the second capacitor C 2.
The 1st pin and the 7th pin of described process chip IC are unsettled, the 2nd pin connects described main control unit 400 with the 5th pin, the 3rd pin connects the 2nd end of described the 3rd resistance R 3 and the first end of described the second capacitor C 2, the 4th pin ground connection, the 6th pin connects the 1st end of described the 4th resistance R 4, and the 8th pin connects power supply.
The 2nd end of described the 4th resistance R 4 connects the 1st end of base stage and described the first resistance R 1 of described triode Q1.
The 2nd end ground connection of described the first resistance R 1.
The colelctor electrode of described triode Q1 connects the 2nd terminal of described sensor S1, grounded emitter.
The 1st terminal of described sensor S1 all connects described power supply with the 3rd terminal.
The 1st end of described the second resistance R 2 connects the 4th terminal of described sensor S1 and the 1st end of described the 3rd resistance R 3, the 2nd end ground connection.
The 2nd end ground connection of described the second capacitor C 2.
Wherein, the 5th pin of described process chip IC connects No. 3 ports of described main control unit, and the output signal brief note is A; The 2nd pin connects No. 4 ports of described main control unit, and the output signal brief note is B.No. 1 port ground connection of described main control unit, No. 2 port connects described power supply.Described supply voltage is+5V.
The operation principle of described detecting unit 100 is as follows:
Referring to Fig. 2, described sensor S1 can be divided into two parts, the inductor (part between the terminal 3,4) on the heater in left side (part between the terminal 1,2) and right side.
The operation principle isoboles of inductor as shown in Figure 3, constant voltage source Vc, sensor S1, load resistance R
LSeries connection.Monitoring load resistance R during measurement
LDividing potential drop Vo, when sensor resistance (being the resistance of inductor) when changing, load dividing potential drop Vo also can change.Therefore, can the indirect detection sensor resistance by the magnitude of voltage that detects Vo.
Wherein, the material of inductor is metal oxide, and the most representative is SnO2.When metal oxide crystal such as SnO2 are heated to certain high temperature in air, the plane of crystal with a negative electrical charge that oxygen is attracted to.Then, the supplied for electronic of plane of crystal is transferred on the oxygen of absorption, and the result stays positive charge at a space charge layer.Like this, surperficial potential energy forms a potential barrier, flows thereby hinder electronics.In the inside of sensor S1, electric current flows through the binding site (grain boundary) of SnO2 crystallite.In the grain boundary, the oxygen of absorption forms a potential barrier and stops carrier to move freely, and the resistance of sensor is namely because of this potential barrier.When reducibility gas (formaldehyde, carbon monoxide etc.) when occurring, reduce with the surface concentration of the oxygen of negative electrical charge, cause the potential barrier of grain boundary to reduce, and then the resistance of sensor is reduced; And the concentration of reducibility gas is higher, and the change in resistance of sensor is larger.Like this, the change in resistance situation of sensor has reflected the concentration of reducibility gas.
In addition, described inductor is different with the difference of its temperature to the sensitivity of different gas.The operating temperature of described inductor is regulated in the effect of described heater just, detects in order to make described inductor carry out timesharing to different gas.In the present embodiment, process chip IC sends pwm pulse by PB1 pin (the 6th pin), by regulating the difference of dutycycle, makes triode Q1 turn-on cycle different, changes the heater both end voltage.Heater is equivalent to heater strip, and both end voltage is constant heating voltage, and different constant heating voltages determine the different operating temperature of inductor, thereby makes inductor different to the susceptibility of gas with various.Fig. 4 is that the operating voltage of the described sensor of the utility model embodiment (is the 1st terminal of sensor S1 and the voltage U between the 2nd terminal
S) with the corresponding relation figure of dusty gas, as shown in Figure 4, work as U
SDuring=1V, sensor S1 is high to the CO susceptibility; Work as U
SDuring=0.2V, sensor S1 PARA FORMALDEHYDE PRILLS(91,95) susceptibility is high.Like this, by the dutycycle of reasonable control pwm pulse, can be in a cycle period, the concentration of gas with various is measured in timesharing, such as making U in front 10 seconds
S=1V measures CO concentration, makes U in rear 20 seconds
S=0.2V, the concentration of measurement formaldehyde.
The operating voltage of supposing to be added in by the PWM waveform adjustment sensor is 0.8V, and this moment, the sensor PARA FORMALDEHYDE PRILLS(91,95) was the sensitiveest, and concentration of formaldehyde is different, and the sensor dividing potential drop is different.The voltage signal of the 3rd resistance R 3 the 2nd end is fed back to the ADC pin (i.e. the 3rd pin) of process chip IC, by the internal arithmetic of process chip IC, judge the corresponding grade of concentration value, and judged result is exported to main control unit CN.Table 1 is the class of pollution sample table of the present embodiment, and described process chip IC can be labeled as level Four with the air pollution situation by the level of its a-signal of exporting and B signal.The class of pollution is higher, pollute more serious, such as can define the class of pollution and meet or exceed 3 grades the time, think that harmful substance contents surpasses predetermined value in the air, and then start the corresponding operation that purifies according to the kind of current pollution sources, such as when detecting concentration of formaldehyde, finding that its concentration reaches 4 grades, then can start except the formaldehyde operation; When detecting carbonomonoxide concentration, find that its concentration reaches 4 grades, then can start the inletting fresh air operation.
Table 1 class of pollution table
| The a-signal level | The B signal level | The class of pollution |
| Low | Low | 1 |
| High | Low | 2 |
| Low | High | 3 |
| High | High | 4 |
Described main control unit 400 is used for judging according to testing result whether harmful substance contents surpasses predetermined value, and sends the air cleaning instruction to described clean unit 200 when harmful substance contents surpasses predetermined value.In addition, when the judgment result displays harmful substance contents of described main control unit 400 does not surpass predetermined value (such as judging that the class of pollution is 1 grade), if clean unit 200 carried out inletting fresh air and/or except the formaldehyde operation, then sent halt instruction to clean unit 200 this moment.
Described clean unit 200 is used for carrying out inletting fresh air and/or removing the formaldehyde operation according to described air cleaning instruction, and stops inletting fresh air and/or remove the formaldehyde operation according to halt instruction.
Described clean unit 200 comprises: air refreshing device and except formaldehyde plant.Described air refreshing device is used for carrying out the inletting fresh air operation according to described air cleaning instruction, and stops the inletting fresh air operation according to halt instruction.Described except formaldehyde plant, be used for removing the formaldehyde operation according to described air cleaning instruction, and stop except the formaldehyde operation according to halt instruction.Described air refreshing device and open except all having in the formaldehyde plant prior art, its non-the utility model emphasis repeats no more its structure.
Described display unit 300 is used for showing current air quality grade according to described testing result.Described display unit 300 is a LCDs, and it can show the class of pollution of various pollution sources in lines, the class of pollution that also can a pollution sources that display density is the highest.
Described temperature conditioning unit 500 is used for regulating indoor air temperature.Described temperature conditioning unit 500 comprises heater and refrigerating plant, and existing air-conditioning includes this two parts, and its non-the utility model emphasis repeats no more its detailed structure.
Described power subsystem 600 is used to each functional unit power supply of described air-conditioning.
The described air-conditioning of the utility model embodiment, detect harmful substance contents in the air by detecting unit, and according to the air pollution grade automatically control air refreshing device and except the formaldehyde plant operation to purify air, thereby avoided not wield problem of air cleaning time, guarantee in the situation of air quality, reduce energy waste, improve air-conditioning service life.
Above embodiment only is used for explanation the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (7)
1. an air-conditioning is characterized in that, comprising: main control unit, and the detecting unit and the clean unit that are connected with described main control unit;
Described detecting unit for detection of harmful substance contents in the air, and sends to described main control unit with testing result;
Described main control unit is used for judging according to testing result whether harmful substance contents surpasses predetermined value, and sends the air cleaning instruction to described clean unit when harmful substance contents surpasses predetermined value;
Described clean unit is used for carrying out inletting fresh air and/or removing the formaldehyde operation according to described air cleaning instruction.
2. air-conditioning as claimed in claim 1 is characterized in that, described detecting unit comprises: process chip IC, triode Q1, sensor S1 and the second resistance R 2;
The 2nd pin of described process chip IC connects described main control unit with the 5th pin, and the 3rd pin connects the 4th terminal of described sensor S1, the 4th pin ground connection, and the 6th pin connects the base stage of described triode Q1, and the 8th pin connects power supply;
The colelctor electrode of described triode Q1 connects the 2nd terminal of described sensor S1, grounded emitter;
The 1st terminal of described sensor S1 all connects described power supply with the 3rd terminal;
The 1st end of described the second resistance R 2 connects the 4th terminal of described sensor S1, the 2nd end ground connection.
3. air-conditioning as claimed in claim 2 is characterized in that, described detecting unit also comprises: the first resistance R 1, the 3rd resistance R 3, the 4th resistance R 4, and the second capacitor C 2;
The 1st end of described the first resistance R 1 connects the base stage of described triode Q1, the 2nd end ground connection;
The 1st end of described the 4th resistance R 4 connects the 6th pin of described process chip IC, and the 2nd end connects the base stage of described triode Q1;
The 1st end of described the 3rd resistance R 3 connects the 4th terminal of described sensor S1, and the 2nd end connects the 3rd pin of described process chip IC and the 1st end of described the second capacitor C 2;
The 2nd end ground connection of described the second capacitor C 2.
4. air-conditioning as claimed in claim 1 is characterized in that, described clean unit comprises: air refreshing device and except formaldehyde plant;
Described air refreshing device is used for carrying out the inletting fresh air operation according to described air cleaning instruction;
Described except formaldehyde plant, be used for removing the formaldehyde operation according to described air cleaning instruction.
5. air-conditioning as claimed in claim 1 is characterized in that, described air-conditioning also comprises: display unit;
Described display unit connects described main control unit, is used for showing current air quality grade according to described testing result.
6. air-conditioning as claimed in claim 1 is characterized in that, described air-conditioning also comprises: temperature conditioning unit;
Described temperature conditioning unit connects described main control unit, is used for regulating indoor air temperature.
7. such as the described air-conditioning of one of claim 1 to 6, it is characterized in that, described main control unit adopts microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405822 CN202769882U (en) | 2012-08-16 | 2012-08-16 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405822 CN202769882U (en) | 2012-08-16 | 2012-08-16 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202769882U true CN202769882U (en) | 2013-03-06 |
Family
ID=47776448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220405822 Expired - Lifetime CN202769882U (en) | 2012-08-16 | 2012-08-16 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202769882U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819512A (en) * | 2014-01-31 | 2015-08-05 | 环一军 | Multipurpose air purifier |
| CN109028511A (en) * | 2018-07-03 | 2018-12-18 | 佛山市影腾科技有限公司 | A kind of air-conditioning system with Detection of Air Quality sensor |
-
2012
- 2012-08-16 CN CN 201220405822 patent/CN202769882U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819512A (en) * | 2014-01-31 | 2015-08-05 | 环一军 | Multipurpose air purifier |
| CN104819512B (en) * | 2014-01-31 | 2018-08-10 | 环一军 | A kind of multifunctional air clarifier |
| CN109028511A (en) * | 2018-07-03 | 2018-12-18 | 佛山市影腾科技有限公司 | A kind of air-conditioning system with Detection of Air Quality sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |
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| CX01 | Expiry of patent term |