CN101086359A - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN101086359A CN101086359A CN 200610014088 CN200610014088A CN101086359A CN 101086359 A CN101086359 A CN 101086359A CN 200610014088 CN200610014088 CN 200610014088 CN 200610014088 A CN200610014088 A CN 200610014088A CN 101086359 A CN101086359 A CN 101086359A
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Abstract
The invention discloses an air conditioner and controlling method, which comprises the following steps: detecting the temperature and pressure of several compressors to connect outdoor sets; comparing the output temperature and condensing temperature with the sum of compressing temperature of compressors; judging whether the compressor has defect; comparing the detected pressure and set objective pressure according to the judging result; deciding whether the compressor operates. The invention is precise to know the operating condition of the compressor to exchange or maintain the uniform speed compressor, which stabilizes the refrigerating/heating property of air conditioner to provide convenience and comfort for user.
Description
Technical field
The present invention relates to a kind of air-conditioner and control method thereof, particularly relate to and a kind ofly can detect that several change the at the uniform velocity output temperature and the condensation temperature of compressor with pressure on the off-premises station, judge in view of the above whether compressor breaks down, and its judged result is outputed to the air-conditioner and the control method thereof of display part.
Background technology
Usually, air-conditioner is the heat exchange circulation system that utilizes compressor, condenser, evaporimeter, expansion mechanism to form, and to the device that building that air-conditioner is housed or room temperature are regulated, air-conditioner can be divided into split type and two kinds of integral types haply.
Described detachable air conditioner is identical on function with integral air conditioner, but detachable air conditioner is provided with indoor heat converter (evaporimeter or condenser) in indoor set, in off-premises station, be provided with outdoor heat converter (condenser or evaporimeter) and compressor, and utilize coolant piping to connect indoor set and off-premises station; And integral air conditioner is in same casing inside indoor heat converter and outdoor heat converter and expansion mechanism to be set.
Described integral air conditioner is a kind of to be to be set directly on the window, and another kind of integral air conditioner connects suction passage and output channel, is arranged on the passage between the indoor and outdoor.Described detachable air conditioner is divided into and lands cabinet air conditioner and be suspended on wall-hanging air conditioner on the metope.
Described air-conditioner can also be divided into the single-cooling air-conditioner of separate refrigeration and have the air conditioner of refrigerating/heating function concurrently.
At least being provided with the one-driven-several type air-conditioner that connects several indoor sets on the more than one off-premises station is recently just used widely.
The compressor of this one-driven-several type air-conditioner can be according to the size adjustment coolant quantity of load, at least comprise the compressor more than, but general one-driven-several type air-conditioner starts compressor along with connecting power supply, if have a compressor that fault has taken place in the middle of the compressor that is activated, and accurately detection failure takes place, and directly starts other compressor operation.
But owing to not detecting the compressor that breaks down and start other compressor, the compressor that breaks down will cause ill effect to other the compressor of normal operation.And, owing to can't judge accurately whether described compressor breaks down, need to check all compressors, safeguard also very difficult.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, provide a kind of air-conditioner with and control method, can judge accurately whether described compressor breaks down, so that can judge the at the uniform velocity working condition of compressor in early days.
The technical solution adopted in the present invention is: a kind of air-conditioner comprises: be connected to the several compressors on the off-premises station; Be used to detect the pressure of described compressor or the test section of output temperature and condensation temperature; Be used to preserve the goal pressure memory of data of described compressor; Compressor output temperature and condensation temperature that more described test section detects are judged whether compressor breaks down, and are controlled the control part whether described compressor turns round according to the result of described judgement; The judged result of described control part is outputed to outside display part.Described control part comprises: the compression temperature of the compressor output temperature that described test section detects and the compressor of setting and condensation temperature and compare, promptly with the comparison of the 1st temperature, judge the action judging part of the operating condition of compressor thus.Described output oral-lateral and suction oral-lateral at compressor is provided with sensor, and described test section detects compressor output pressure and temperature and condensation temperature thus.
A kind of control method of air-conditioner comprises: detect the pressure of the several compressors that is connected to off-premises station and the 1st stage of temperature; With the compression temperature of detected output temperature and condensation temperature and compressor and compare, promptly compare the 2nd stage of breaking down of judging whether with the 1st temperature; According to described judged result, the goal pressure of detected pressure and setting is compared the 3rd stage whether the decision compressor turns round.In the 2nd stage,, judge that compressor is in malfunction when the output temperature that detects during less than the 1st temperature.In the 3rd stage,, the result of described judgement is outputed to outside display part when described output temperature during less than the 1st temperature.Described the 3rd stage comprises: when described output temperature during greater than described the 1st temperature, the pressure of described compressor with do not have the whether identical process that compares judgement of fixed goal pressure; According to the result who judges, when the goal pressure of pressure that detects and setting not simultaneously, start another process of compressor at the uniform velocity that is connected on the off-premises station.
The invention has the beneficial effects as follows: air-conditioner provided by the invention with and control method, by detecting temperature and the pressure that connects the several compressors on the off-premises station, and the temperature of described detection and a reference value of pressure and setting compared, judge thus whether compressor breaks down, and judged result outputed to display part, the working condition of control compressor, thereby can carefully more slap whether operate as normal of curry compressor accurately, so that in early days out of order at the uniform velocity compressor is changed or is keeped in repair, more stable during the air-conditioner refrigerating/heating, increased the requirement of user to the convenience and the comfortableness of product.
Description of drawings
Fig. 1 is the scheme of installation of air-conditioner of the present invention;
Fig. 2 is the schematic perspective view of air-conditioner of the present invention;
Fig. 3 is the circulation schematic diagram of air-conditioner of the present invention;
Fig. 4 is the controlling party block diagram of air-conditioner of the present invention;
Fig. 5 is the flow chart of air-conditioner control method of the present invention.
Among the figure:
100: test section 110: pressure sensor
120: temperature sensor 200: storage part
300: control part 310: the action judging part
400: display part
The specific embodiment
Air-conditioner of the present invention comprises: be connected to the several compressors on the off-premises station; Be used to detect the pressure of described compressor or the test section of output temperature and condensation temperature; Be used to preserve the goal pressure memory of data of described compressor; Relatively detect the output temperature and the condensation temperature of described compressor, judge whether to break down, and control the control part whether compressor turns round according to the result of described judgement; The result that described control part is judged outputs to outside display part.
The control method of air-conditioner of the present invention comprises: the 1st stage of detecting the temperature and pressure of the several compressors that is connected to off-premises station; With detected output temperature and condensation temperature and compressor compresses temperature and, promptly compare and judge the 2nd stage whether break down with the 1st temperature; According to the result of described judgement, the goal pressure of more detected pressure and setting, the 3rd stage whether the decision compressor turns round.
Below, with the specific embodiment the present invention is described in further detail in conjunction with the accompanying drawings.
Fig. 1 is an air-conditioner scheme of installation provided by the invention, and Fig. 2 is the schematic perspective view of air-conditioner provided by the invention, and Fig. 3 is the circulation schematic diagram of air-conditioner provided by the invention.
Air-conditioner provided by the invention as shown in Figure 1 to Figure 3, air-conditioner is to constitute with the off-premises station 10 that is connected with described indoor set 20 by being arranged on several indoor indoor sets 20 of building, described indoor set 20 and off-premises station 10 are connected by coolant piping, off-premises station 10 is the control startups down according to a certain indoor set in the described indoor set 20, and along with the increase of described indoor set 20 desired refrigerating/heating amounts, the startup quantity of described off-premises station 10 and the running quantity that is arranged on the compressor on the described off-premises station 10 increase together.
In the air-conditioner off-premises station 10 and indoor set 20 be connected and working method as follows: several indoor sets 20a in the air-conditioner, 20b, 20c comprises: the indoor heat converter 23a that makes refrigerant and room air carry out heat exchange, 23b, 23c; Be arranged on described indoor heat converter 23a, 23b near the 23c, makes room air produce the indoor fan 24a of circulation, 24b, 24c; When air-conditioner freezes, the described indoor heat converter 23a of subtend, 23b, the indoor expansion valve 22a that the cold medium flux that 23c flows is controlled, 22b, 22c.
With off-premises station that several indoor sets 20 in the described air-conditioner are connected in, main off-premises station 10 is connected the control running respectively with several secondary off-premises station 10a.
Described air-conditioner outdoor unit comprises that main off-premises station 10 and secondary off-premises station 10a constitute, and off-premises station is by the reservoir 14 of extraction gaseous coolant from the refrigerant that indoor set provides, 14a; Receive described reservoir 14, the gaseous coolant of 14a extraction and the several compressors of compressing 11,11a, 12,12a; With described compressor 11,11a, 12,12a connects, and selects the cross valve 13 of compressed refrigerant flow path, 13a; To described cross valve 13, the outdoor heat converter 15 that 13a provides refrigerant and outdoor air is carried out heat exchange, 15a; Be arranged on described outdoor heat converter 15, near the 15a, be used to make the outdoor fan 16 of outdoor air circulation, 16a constitutes.
Described main off-premises station 10 is provided with frequency-changeable compressor 11 and compressor 11a at the uniform velocity, and only is provided with at the uniform velocity compressor 12 on secondary off-premises station 10a, 12a.Described frequency-changeable compressor 11 is the compressors that can change the decrement of refrigerant, and described at the uniform velocity compressor 11a, 12,12a remains unchanged to the compression volume of refrigerant.
Simultaneously, described frequency-changeable compressor 11 is responsible for 70% of described main off-premises station 10 compression volumes, be arranged at the uniform velocity compressor 11a on the main off-premises station 10 and be responsible for remaining 30% capacity, remaining off-premises station 12, the at the uniform velocity compressor of 12a is undertaken 50% compression volume respectively.
Connecting described compressor 11,11a, 12,12a and cross valve 13, the pipe arrangement of 13a are provided with oil eliminator (not shown), and described oil eliminator is connected described compressor 11,11a, 12, the suction oral-lateral of 12a.
Described oil eliminator and described compressor 11,11a, 12, be provided with between the 12a and be used to detect described compressor 11,11a, 12, the pressure sensor (not shown) of the refrigerant pressure of 12a output.
Particularly, described oil eliminator is from described compressor 11,11a, and 12, separating oil in the refrigerant of 12a output, and the oil that will separate offers described compressor 11, and 11a, 12, among the 12a, make compressor 11,11a, 12, the oil mass that the 12a inner sustain is certain.Described oil eliminator and described compressor 11,11a, 12, the pipe arrangement of the suction oral-lateral of 12a connects by capillary (not shown), and oil moves by described capillary.
With described outdoor heat converter 15, the refrigerant of 15a output guides to described indoor heat converter 23a, 23b establishes the magnetic valve 17 that row makes refrigerant expand when air-conditioner heats on the coolant piping of 23c, 17a and when air-conditioner carries out cooling operation to indoor heat converter 23a, 23b, 23c moves the apparatus for supercooling 18 of refrigerant, 18a and in order to reduce described compressor 11,11a, 12,12a temperature and the liquid injection apparatus (not shown) that is provided with.
Here, described outdoor magnetic valve 17,17a is open fully when air-conditioner freezes, and at described outdoor heat converter 15, the refrigerant of the last condensation of 15a does not expand and just allows it pass through; And when air-conditioner heats running, the size that magnetic valve is open certain, with indoor heat converter 23a, 23b, the refrigerant that carries out condensation on the 23c are flowing into described outdoor heat converter 15, are expanded to the liquid of atomize before the 15a.
Simultaneously, coolant piping is provided with the drier that is used to remove described coolant piping inner moisture, the refrigerant by drier on described coolant piping circuitous after to described indoor heat converter 23a, 23b, 23c side flow.
Fig. 4 is the controlling party block diagram of air-conditioner provided by the invention.
Air-conditioner provided by the invention as shown in Figure 4, air-conditioner is connected to the several compressors 500 on the off-premises station; Be used to detect the test section 100 of the plurality of sensors of the pressure of described compressor or refrigerant output temperature and condensation temperature; Be used to preserve the goal pressure memory of data 200 of described compressor; Refrigerant output temperature and condensation temperature that more described test section 100 detects judge whether the control part 300 that breaks down; The display part that shows described control part 300 judged results.
Several off-premises stations of described air-conditioner are divided into main off-premises station and secondary off-premises station, and described main off-premises station is provided with frequency-changeable compressor and compressor at the uniform velocity, and only is provided with at the uniform velocity compressor on secondary off-premises station.
Described test section 100 comprises: the pressure sensor 110 that is used to detect described compressor pressure; Be used to detect the temperature sensor 120 of described compressor temperature.
Described test section 100 is by described pressure sensor 110 and temperature sensor 120 periodic pressure and the temperature that detect compressor.
And described pressure sensor 110 or temperature sensor 120 are separately positioned on the outlet side and the suction side of described compressor test section 100.
Described temperature sensor 120 is used to detect output temperature, compression temperature, the condensation temperature of described compressor.
Described control part 300 comprises the target pressure value by test section 100 detected pressures or temperature and setting relatively big or small, judges the action judging part 310 of the operating condition of described compressor with this.
Described action judging part 310 will compare by the 1st temperature of described temperature sensor 120 detected output temperatures and benchmark, judges the operating condition of described compressor with this.At this moment, compression temperature that described the 1st temperature is a compressor and condensation temperature and, the compression temperature of described compressor can change according to the pressure of compressor.
For example, when detected output temperature had surpassed the 1st temperature, the operating condition of described compressor was judged as normally, and when working as the output temperature that detected less than the 1st temperature, judged that compressor is in malfunction, therefore was shown to the outside by display part 400.
Simultaneously, described control part 300 is when detected output temperature has surpassed the 1st temperature, and whether the pressure that more described test section 100 detects and the goal pressure of setting are controlled compressor and turned round.
For example, control part 300 when the goal pressure of detected pressure and setting is identical, the compressor of the current running of turning round normally, and in the goal pressure of the pressure that detects and setting not simultaneously, other on the startup off-premises station are compressor at the uniform velocity.
The course of work of air-conditioner of the present invention is as follows: Fig. 5 is the flow chart of air-conditioner control method provided by the invention.
As shown in Figure 5, the refrigeration of described air-conditioner or heat entry into service (S1) starts N the compressor (S2) in the several compressors that is connected on the off-premises station.
At this moment, detect the output temperature Ta and the condensation temperature Tb (S3) of N the compressor that starts.For example, on output oral-lateral that is connected to the several compressors on the described off-premises station and suction oral-lateral, be provided with temperature sensor and pressure sensor respectively, detect the output temperature Ta and the condensation temperature Tb of N compressor thus.
With the output temperature Ta of the compressor that detected and condensation temperature Tb and compressor compression temperature A's and, promptly compare with the 1st temperature (Tb+A), judge the operating condition (S4) of compressor.
For example, when the output temperature Ta of the compressor that is detected has surpassed the 1st temperature (Tb+A), judge that the operating condition of compressor is normal, and during less than the 1st temperature (Tb+A), judge that fault has taken place compressor at described output temperature Ta.
Described the 1st temperature (Tb+A) be compression (inside) the A temperature of described compressor and condensation temperature and, and the compression of described compressor (inside) temperature A changes according to the pressure of compressor.
Simultaneously,, judge that compressor is in malfunction, the result who judges is outputed to display part (S5) show when the output temperature of the compressor that detects during less than the 1st temperature.
At this moment, according to the operating state detected pressures (S6) of the compressor of being judged, judge detected force value whether with the goal pressure of setting identical (S7).
When the goal pressure of the pressure that is detected and setting is identical, normally moves the compressor of current running, and in detected pressure and goal pressure not simultaneously, start the compressor (N+1) that is connected on the off-premises station.
Protection scope of the present invention is not limited to above-mentioned instantiation mode; according to basic fundamental design of the present invention; those of ordinary skills need not can associate some other specific embodiment through creative work, all belong to protection scope of the present invention.
Claims (7)
1. an air-conditioner is characterized in that: comprising: be connected to the several compressors (500) on the off-premises station; Be used to detect the pressure of described compressor or the test section (100) of output temperature and condensation temperature; Be used to preserve the goal pressure memory of data (200) of described compressor; Compressor output temperature and condensation temperature that more described test section detects are judged whether compressor breaks down, and are controlled the control part (300) whether described compressor turns round according to the result of described judgement; The judged result of described control part is outputed to outside display part (400).
2. air-conditioner according to claim 1, it is characterized in that: described control part (300) comprising: the compression temperature of the compressor output temperature that described test section detects and the compressor of setting and condensation temperature with compare, promptly compare, judge the action judging part (310) of the operating condition of compressor thus with the 1st temperature.
3. air-conditioner according to claim 1 is characterized in that: described output oral-lateral and suction oral-lateral at compressor is provided with sensor (110,120), and described test section (100) detects compressor output pressure and temperature and condensation temperature thus.
4. the control method of an air-conditioner is characterized in that: comprising: detect the pressure of the several compressors that is connected to off-premises station and the 1st stage of temperature; With the compression temperature of detected output temperature and condensation temperature and compressor and compare, promptly compare the 2nd stage of breaking down of judging whether with the 1st temperature; According to described judged result, the goal pressure of detected pressure and setting is compared the 3rd stage whether the decision compressor turns round.
5. the control method of air-conditioner according to claim 4 is characterized in that: in the 2nd stage, when the output temperature that detects during less than the 1st temperature, judge that compressor is in malfunction.
6. the control method of air-conditioner according to claim 4 is characterized in that: in the 3rd stage, when described output temperature during less than the 1st temperature, the result of described judgement is outputed to outside display part.
7. the control method of air-conditioner according to claim 4, it is characterized in that: described the 3rd stage comprises: when described output temperature during greater than described the 1st temperature, whether the pressure of described compressor and the goal pressure of setting the identical process that compares judgement; According to the result who judges, when the goal pressure of pressure that detects and setting not simultaneously, start another process of compressor at the uniform velocity that is connected on the off-premises station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610014088 CN101086359A (en) | 2006-06-06 | 2006-06-06 | Air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610014088 CN101086359A (en) | 2006-06-06 | 2006-06-06 | Air conditioner and control method thereof |
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| CN101086359A true CN101086359A (en) | 2007-12-12 |
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| CN 200610014088 Pending CN101086359A (en) | 2006-06-06 | 2006-06-06 | Air conditioner and control method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813358A (en) * | 2009-02-20 | 2010-08-25 | 乐金电子(天津)电器有限公司 | Air conditioning unit and method for detecting operation state thereof |
| CN101858636A (en) * | 2009-03-09 | 2010-10-13 | 三菱电机株式会社 | Air-conditioning apparatus |
| CN102401522A (en) * | 2011-11-11 | 2012-04-04 | 浙江盾安人工环境股份有限公司 | Defrosting method for central air conditioner |
| CN102878646A (en) * | 2011-07-14 | 2013-01-16 | 北汽福田汽车股份有限公司 | Air-conditioner control system and method for electric vehicle |
| CN107050597A (en) * | 2017-04-06 | 2017-08-18 | 佛山科学技术学院 | A kind of medical compressed air feedway and its control method |
| CN110926544A (en) * | 2019-12-13 | 2020-03-27 | 浙江中广电器股份有限公司 | Detection equipment for heat exchanger unit and online automatic detection method thereof |
-
2006
- 2006-06-06 CN CN 200610014088 patent/CN101086359A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813358A (en) * | 2009-02-20 | 2010-08-25 | 乐金电子(天津)电器有限公司 | Air conditioning unit and method for detecting operation state thereof |
| CN101813358B (en) * | 2009-02-20 | 2013-09-11 | 乐金电子(天津)电器有限公司 | Air conditioning unit and method for detecting operation state thereof |
| CN101858636A (en) * | 2009-03-09 | 2010-10-13 | 三菱电机株式会社 | Air-conditioning apparatus |
| CN101858636B (en) * | 2009-03-09 | 2013-04-03 | 三菱电机株式会社 | Air-conditioning apparatus |
| CN102878646A (en) * | 2011-07-14 | 2013-01-16 | 北汽福田汽车股份有限公司 | Air-conditioner control system and method for electric vehicle |
| CN102878646B (en) * | 2011-07-14 | 2014-12-03 | 北汽福田汽车股份有限公司 | Air-conditioner control system and method for electric vehicle |
| CN102401522A (en) * | 2011-11-11 | 2012-04-04 | 浙江盾安人工环境股份有限公司 | Defrosting method for central air conditioner |
| CN107050597A (en) * | 2017-04-06 | 2017-08-18 | 佛山科学技术学院 | A kind of medical compressed air feedway and its control method |
| CN107050597B (en) * | 2017-04-06 | 2023-10-10 | 佛山科学技术学院 | Medical compressed air supply device and control method thereof |
| CN110926544A (en) * | 2019-12-13 | 2020-03-27 | 浙江中广电器股份有限公司 | Detection equipment for heat exchanger unit and online automatic detection method thereof |
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