CN101086369A - Control method of composite type air conditioner for preventing insufficient infusion of refrigerant - Google Patents
Control method of composite type air conditioner for preventing insufficient infusion of refrigerant Download PDFInfo
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- CN101086369A CN101086369A CN 200610014103 CN200610014103A CN101086369A CN 101086369 A CN101086369 A CN 101086369A CN 200610014103 CN200610014103 CN 200610014103 CN 200610014103 A CN200610014103 A CN 200610014103A CN 101086369 A CN101086369 A CN 101086369A
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Abstract
The invention discloses a complex air-conditioner control method of avoiding the insufficient coolant injection quantity, which comprises the following steps: the procedure1, detecting the operation high pressure, the operation low pressure, the suction temperature and ejection temperature in the compressor current operation state by the pressure sensor and the temperature sensor arranged at the suction side and the ejection side of the compressor when the air-conditioner is operating; the procedure 2, comparing the detected operation high pressure, operation low pressure, suction temperature and ejection temperature with the corresponding reference value, judging if the coolant quantity of the compressor is sufficient and adding the coolant automatically according to the judged result; the procedure 3, displaying the judged result information in the procedure 2 on the remote controller or the display screen of the control panel. The invention avoids the accident owing to the insufficient coolant in the compressor of the air-conditioner.
Description
Technical field
The present invention relates to a kind of air-conditioner, particularly relate to a kind of control method that prevents insufficient infusion of refrigerant of composite air conditioner.
Background technology
In general, regulate the household electrical appliance of indoor environment to building interior space supply cold air or heating installation, generally comprise: parts such as compressor, condenser, evaporimeter and expansion valve thereby air-conditioner is a kind of being used for.Air-conditioner generally can be divided into two types of detachable air conditioner and integral air conditioners.
The function of described detachable air conditioner and integral air conditioner is basic identical, and the difference of the two is: detachable air conditioner comprises indoor set and off-premises station two parts.Indoor set is provided with indoor heat converter (evaporimeter or condenser), and off-premises station is provided with outdoor heat converter (condenser or evaporimeter) and compressor, is connected by the refrigerant pipe between indoor set and the off-premises station; Integral air conditioner is provided with indoor heat converter, compressor and outdoor heat converter simultaneously.
In addition, described integral air conditioner can be further divided into: be arranged on the window window air conditioner be arranged on the channel-type air-conditioner that the room outside is connected with the exhaust passage with air intake passage respectively.Described detachable air conditioner can be further divided into: upright cabinet air conditioner that is provided with and the wall-hanging air conditioner that hangs over wall.
In addition, according to the difference of its function, air-conditioner can be divided into: only have the refrigeration formula air-conditioner of refrigerating function and have refrigeration simultaneously and the refrigerating and heating type air-conditioner of pyrogenicity function.
In addition, develop composite air conditioner in recent years, this composite air conditioner is a kind of air-conditioner that at least one off-premises station is connected with a plurality of indoor sets.
The control method that above-mentioned existing air-conditioner moves under refrigeration/pyrogenicity mode as shown in Figure 1.
As shown in Figure 1, the control method of existing air-conditioner comprises:
Step S1: under the current running status of compressor, detect operation high pressure, operation low pressure, inlet temperature and discharge temperature, thereby judge its running status.
Step S2: whether not enough in order to judge compressor refrigerant injection rate, set discharge temperature and a reference value of moving low pressure.
Step S3: the control compressor makes its discharge temperature and operation low pressure reach a reference value of setting respectively.
There is following shortcoming in above-mentioned existing composite air conditioner:
Even the insufficient infusion of refrigerant of the compressor of air-conditioner still can continue operation.Therefore, the insufficient infusion of refrigerant because of compressor causes compressor discharge pressure to cross phenomenon low or that discharge temperature is overheated easily, causes compressor impaired, air-conditioner generation operation troubles.
Summary of the invention
Technical problem to be solved by this invention is, overcome the shortcoming of above-mentioned existing composite air conditioner, a kind of control method that prevents insufficient infusion of refrigerant of composite air conditioner is provided, this method can judge whether compressor refrigerant injection rate is not enough, and can in time supply the refrigerant injection rate during compressor insufficient infusion of refrigerant, thereby prevent that compressor from breaking down because of the refrigerant injection rate.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the control method that prevents insufficient infusion of refrigerant of composite air conditioner of the present invention comprises: comprising:
Step 1: when air-conditioner moves, by operation high pressure, operation low pressure, inlet temperature and the discharge temperature under suction side that is separately positioned on compressor and the pressure sensor of discharging side and the current running status of temperature sensor detection compressor;
Step 2: detected operation high pressure in the step 1, operation low pressure, inlet temperature and discharge temperature are compared with corresponding a reference value respectively, thereby judge coolant quantity whether not enough of compressor, and suitably append the injection refrigerant from the trend compressor according to judged result; With
Step 3: with the coolant quantity judged in the step 2 whether not enough information is presented on the display screen of remote controller or control panel.
Described step 3 comprises:
First process: if the judged result of step 2 is: outdoor expansion valve has been opened to respect to wide-open first percentage (X1%) degree, the discharge temperature of compressor is higher than first temperature (Y1), then injects solicited message according to the shown refrigerant that appends of display screen; With
Second process: append the refrigerant of the A% that injects the whole coolant quantities in the air-conditioner to compressor, and continue operation 3 minutes.
Described step 3 also comprises:
The 3rd process: append the refrigerant of the A% that injects the whole coolant quantities in the air-conditioner and continue operation after 3 minutes to compressor, whether the opening degree of further judging outdoor expansion valve has reached second percentage (X2%) degree with respect to complete opening, and judges whether the discharge temperature of compressor is higher than second temperature (Y2); If judged result is: the opening degree of outdoor expansion valve has reached second percentage (X2%) degree with respect to complete opening, and the discharge temperature of compressor has reached second temperature (Y2); With
The 4th process: then inject solicited message, append the refrigerant of the B% that injects the whole coolant quantities in the air-conditioner to compressor, and continue operation 3 minutes according to the shown refrigerant that appends of display screen.
Described step 3 also comprises:
The 5th process: append the refrigerant of the B% that injects the whole coolant quantities in the air-conditioner and continue operation after 3 minutes to compressor, further judge whether the opening degree of outdoor expansion valve has reached with respect to the 3rd percentage (X3%) that opens fully, and judge whether the discharge temperature of compressor has reached the 3rd temperature (Y3); If judged result is: the opening degree of outdoor expansion valve has reached with respect to the 3rd percentage (X3%) degree that opens fully, and the discharge temperature of compressor has reached the 3rd temperature (Y3); With
The 6th process: the append refrigerant shown according to display screen injects solicited message, appends the refrigerant of the C% that injects the whole coolant quantities in the air-conditioner to compressor, and continues operation 3 minutes.
Described X1%, X2%, X3% are predefined three percentages that increase progressively successively; Described Y1, Y2, Y3 are predefined three positive numbers that increase progressively successively; Described A%, B%, C% are predefined three percentages that increase progressively successively.
The invention has the beneficial effects as follows: can detect the phenomenon of the compressor coolant quantity deficiency that occurs in the air-conditioner running automatically, and append the injection refrigerant automatically, thereby prevent the fault that the compressor coolant quantity deficiency because of air-conditioner causes effectively.
Description of drawings
Fig. 1 is the control method flow chart of existing air-conditioner.
Fig. 2 is the schematic layout pattern of composite air conditioner in building among the present invention.
Fig. 3 is the connected mode schematic diagram of composite air conditioner part among the present invention.
Fig. 4 is the structural representation of composite air conditioner among the present invention.
Fig. 5 is the control loop block diagram of composite air conditioner among the present invention.
Fig. 6 is the flow chart of the control method that prevents insufficient infusion of refrigerant of composite air conditioner of the present invention.
Among the figure:
10: off-premises station 11: frequency-changeable compressor
11a, 12,12a: constant speed compressor 13,13a: cross valve
14,14a: fluid reservoir 15,15a: outdoor heat converter
16,16a: outdoor fan 20,20a, 20b, 20c: indoor set
22a, 22b, 22c: expansion valve 24a, 24b, 24c: indoor fan
23a, 23b, 23c: indoor heat converter
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 2 is the schematic layout pattern of composite air conditioner in building among the present invention.Fig. 3 is the connected mode schematic diagram of composite air conditioner part among the present invention.Fig. 4 is the structural representation of composite air conditioner among the present invention.
As shown in Figures 1 to 4, composite air conditioner comprises among the present invention: be separately positioned on a plurality of indoor sets 20 in each room of building and a plurality ofly be separately positioned on outdoor off-premises station; Described indoor set 20 is connected with off-premises station by the refrigerant pipe; Described off-premises station 10 at least indoor set 20 request and start, described indoor set 20 desired refrigeration/pyrogenicity load is big more, the startup quantity of off-premises station and to be arranged on the startup quantity of the compressor in the off-premises station many more.
With example more particularly, described indoor set 20 comprises a plurality of indoor set 20a, 20b, 20c; Indoor set 20a, 20b, 20c comprise: be used for making refrigerant and room air to carry out indoor heat converter 23a, 23b, the 23c of heat exchange; Be arranged on indoor heat converter 23a, 23b, 23c near be used for making indoor fan 24a, 24b, the 24c of room air circulation; With the indoor expansion valve 22a, 22b, the 22c that when air-conditioner is worked in the refrigeration mode, are used for making the refrigerant expansion that flows to indoor heat converter 23a, 23b, 23c.
Described off-premises station comprises: a main off-premises station 10 and several auxiliary off-premises station 10a.
More particularly, described off- premises station 10,10a comprise: the fluid reservoir 14, the 14a that only export gas coolant; Reception and compression are from compressor 11,11a, 12, the 12a of the gas coolant of fluid reservoir 14,14a; Be connected with compressor 11,11a, 12,12a, be used for selecting cross valve 13, the 13a of the stream of compressed refrigerant; The outdoor heat converter 15, the 15a that are used for making refrigerant and outdoor air from cross valve 13,13a to carry out heat exchange; And be arranged on outdoor heat converter 15,15a near be used for making outdoor fan 16, the 16a of outdoor air circulation.
More particularly, described main off-premises station 10 comprises: frequency-changeable compressor 11 and constant speed compressor 11a; Described auxiliary off-premises station 10a comprises: constant speed compressor 12 and constant speed compressor 12a; Described frequency-changeable compressor 11 is a kind of compressors that can regulate the decrement of refrigerant, and described constant speed compressor 11a, 12,12a are a kind of changeless compressors of decrement of refrigerant.
Described frequency-changeable compressor 11 bear main off-premises station 10 the refrigerant decrement 70%, described constant speed compressor 11a bear main off-premises station 10 the refrigerant decrement 30%; The constant speed compressor 12 of described auxiliary off- premises station 10a, 12a bear respectively auxiliary off-premises station 10a the refrigerant decrement 50%.
In addition, also be provided with the lubricating oil separator (not shown) on the refrigerant pipe that is connected between described compressor 11,11a, 12,12a and cross valve 13, the 13a, lubricating oil separator is connected to the refrigerant suction side of compressor 11,11a, 12,12a.
Be provided with the pressure sensor of the pressure that is used for detecting compressor 11,11a, 12, refrigerant that 12a discharges between described lubricating oil separator and compressor 11,11a, 12, the 12a.
The effect of described lubricating oil separator is that the lubricating oil separation the refrigerant of will discharge from compressor 11,11a, 12,12a is come out, the lubricating oil that is separated supplies among compressor 11,11a, 12, the 12a, thereby guarantees there is a certain amount of lubricating oil in described compressor 11,11a, 12, the 12a.Be connected by the capillary (not shown) between described lubricating oil separator and compressor 11,11a, 12, the 12a, the lubricating oil of separating can flow into compressor 11,11a, 12,12a by capillary.
In addition, also be provided with on the refrigerant pipe with the discharge refrigerant of described outdoor heat converter 15,15a guiding indoor heat converter 23a, 23b, 23c: the electromagnetic expanding valve 17, the 17a that when air-conditioner so that hot mode operation, refrigerant are expanded; Cool stream is to apparatus for supercooling 18, the 18a of the refrigerant of indoor heat converter 23a, 23b, 23c when air-conditioner moves in the refrigeration mode; Device for injecting liquid (not shown) with the temperature that is used for reducing compressor 11,11a, 12,12a.
When air-conditioner moved in the refrigeration mode, described outdoor electromagnetic expanding valve 17,17a be by complete opening, therefore is condensate in liquid refrigerants in outdoor heat converter 15, the 15a and can be inflated and flows through; But when the operation of air-conditioner so that hot mode, described outdoor electromagnetic expanding valve 17,17a only are unlocked to a certain degree, make the refrigerant that is condensate in indoor heat converter 23a, 23b, the 23c formation of expanding before inflow outdoor heat exchanger 15,15a vaporific.
In addition, also be provided with on the refrigerant pipe with the drier that removes refrigerant pipe inner moisture, the refrigerant of the drying machine of flowing through is flowing to indoor heat converter 23a, 23b, 23c after the shunting on the refrigerant pipe.
Fig. 5 is the control loop block diagram of composite air conditioner among the present invention.
As shown in Figure 5, the control loop of composite air conditioner comprises among the present invention: operation high pressure, operation low pressure, inlet temperature and the discharge temperature that can detect compressor, and thereby detected temperature value and force value compared the injection rate of judging refrigerant with a reference value respectively, described judged result information is sent to off-premises station 100 control loops of indoor set; Regulate cold medium flux with the judged result information that can send according to off-premises station, and control room internal fan running status, and show indoor set 200 control loops of the judged result information that off-premises station sends.
More particularly, described off-premises station 100 control loops comprise: the outdoor temperature sensing device 110 that is used for detecting the inlet temperature and the discharge temperature of compressor; Be used for detecting the operation high pressure of compressor and the high/low pressure pressure sensing device 120 of operation low pressure; With being used for outdoor temperature sensing device 110 and high/low pressure pressure sensing device 120 detected inlet temperatures, discharge temperature, operation high pressure and operation low pressure are compared and judge whether the injection rate of refrigerant is not enough with setting a reference value, and produce and output is used for controlling the outdoor controller 130 of the control signal of compressor and outdoor fan according to judged result.
In addition, described off-premises station 100 control loops also comprise: the compressor 140 that the control signal that transmitted by outdoor controller 130 is controlled; The outdoor motor portion 150 that the control signal that transmitted by outdoor controller 130 is controlled; First flow adjusting device 160 with the control signal control that transmitted by outdoor controller 130.
Described indoor set 200 control loops comprise: the indoor temperature sensing device 210 that is used for detecting indoor temperature; Be used for the information that outdoor controller 130 transmits is shown in outside display screen 230; Be used for the indoor motor 240 of control room internal fan; With second flow regulator 250 that is used for regulating cold medium flux.
Described outdoor temperature sensing device 110 comprises suction side that is separately positioned on compressor and the high/low pressure-temperature sensor of discharging the side two ends, be used for detecting the inlet temperature and the discharge temperature of compressor, and detected temperature information is sent to outdoor controller 130.
Described high/low pressure pressure sensing device 120 comprises suction side that is separately positioned on compressor and the pressure sensor of discharging the side two ends, is used for detecting the operation high pressure and the operation low pressure of compressor, and detected pressure information is sent to outdoor controller 130.
Described outdoor controller 130 compares discharge temperature and the operation low pressure that outdoor temperature sensing device 110 and high/low pressure pressure sensing device 120 send respectively with temperature reference value and operation low pressure a reference value, and judge whether compressor behavior is unusual, and send control signal corresponding to compressor and outdoor fan respectively according to judged result.
For example, described outdoor controller 130 is judged outdoor temperature sensing device 110 detected discharge temperature value whether greater than 115 ℃ of a reference value, and whether high/low pressure pressure sensing device 120 detected operation low pressure are less than 49kpa.
When described outdoor controller 130 is judged, when outdoor temperature sensing device 110 and high/low pressure pressure sensing device 120 detected discharge temperatures and operation low pressure are greater than or less than a reference value respectively, then be judged as the insufficient infusion of refrigerant of compressor, send the control signal of electromagnetism expansion valve outside the control room to first flow dispensing device 160, first flow adjusting device 160 is according to electromagnetism expansion valve outside this control signal opening chamber.
Meanwhile, according to the flow-control compressor of refrigerant and the duty of outdoor fan.
In addition, whether unusual described outdoor controller 130 can also transmit compressor behavior judgement information to indoor controller 220, and described indoor controller 220 is judged the duty of information control room internal fan and expansion valve according to this.
Meanwhile, whether unusual judgement information is presented on the display screen 230 described indoor controller 220 relevant compressor behavior that outdoor controller 130 is sent.
Fig. 6 is the flow chart of the control method that prevents insufficient infusion of refrigerant of composite air conditioner of the present invention.
As shown in Figure 6, the control method that prevents insufficient infusion of refrigerant of composite air conditioner of the present invention comprises:
Step 1: when air-conditioner moves, by operation high pressure, operation low pressure, inlet temperature and the discharge temperature (S100) under suction side that is separately positioned on compressor and the pressure sensor of discharging side and the current running status of temperature sensor detection compressor.
Step 2: detected operation high pressure in the step 1, operation low pressure, inlet temperature and discharge temperature are compared with corresponding a reference value respectively, thereby judge whether outdoor expansion valve is opened to respect to wide-open first percentage (X1%) degree, and judge whether the discharge temperature of compressor is higher than first temperature (Y1) (S200).
Step 3: if the judged result of step 2 is: outdoor expansion valve is not opened to respect to wide-open first percentage (X1%) degree, and the discharge temperature of compressor does not reach first temperature (Y1), and air-conditioner is normally moved.
Otherwise, if the judged result of step 2 is: outdoor expansion valve has been opened to respect to wide-open first percentage (X1%) degree, the discharge temperature of compressor is higher than first temperature (Y1), then inject solicited message according to the shown refrigerant that appends of display screen, append the refrigerant of the A% that injects the whole coolant quantities in the air-conditioner to compressor, and continue 3 minutes (S250) of operation.
Step 4: whether the opening degree of further judging outdoor expansion valve has reached second percentage (X2%) degree with respect to complete opening, and judges whether the discharge temperature of compressor is higher than second temperature (Y2) (S300).
Step 5: if the judged result of step 4 is: the opening degree of outdoor expansion valve does not reach second percentage (X2%) degree with respect to complete opening, and the discharge temperature of compressor does not reach second temperature (Y2), and air-conditioner is normally moved; Otherwise, if the judged result of step 4 is: the opening degree of outdoor expansion valve has reached second percentage (X2%) degree with respect to complete opening, the discharge temperature of compressor has reached second temperature (Y2), then inject solicited message according to the shown refrigerant that appends of display screen, append the refrigerant of the B% that injects the whole coolant quantities in the air-conditioner to compressor, and continue 3 minutes (S350) of operation.
Step 6: whether the opening degree of further judging outdoor expansion valve has reached with respect to the 3rd percentage (X3%) that opens fully, and judges whether the discharge temperature of compressor has reached the 3rd temperature (Y3) (S400).
Step 7: if the judged result of step 6 is: the opening degree of outdoor expansion valve has reached with respect to the 3rd percentage (X3%) degree that opens fully, the discharge temperature of compressor has reached the 3rd temperature (Y3), then inject solicited message according to the shown refrigerant that appends of display screen, append the refrigerant of the C% that injects the whole coolant quantities in the air-conditioner to compressor, and continue operation 3 minutes.Otherwise the opening degree of outdoor expansion valve does not reach the 3rd percentage (X3%) degree with respect to complete opening, and the discharge temperature of compressor does not reach the 3rd temperature (Y3), and air-conditioner is normally moved.
Described X1%, X2%, X3% are predefined three percentages that increase progressively successively; Described Y1, Y2, Y3 are predefined three positive numbers that increase progressively successively; Described A%, B%, C% are predefined three percentages that increase progressively successively.
To step 6, the coolant quantity that needs is appended injection according to current judged result is presented on the display screen on remote controller or the control panel respectively, is convenient to the coolant quantity that User Recognition need be appended injection in above-mentioned steps 2.
It is worthy of note; protection scope of the present invention is not limited to the embodiment and the disclosed content of accompanying drawing of specification; according to basic fundamental design of the present invention; those of ordinary skill in the art need not can associate some other specific embodiment through creative work, and protection scope of the present invention is as the criterion with the content of claims record.
Claims (5)
1. the control method that prevents insufficient infusion of refrigerant of a composite air conditioner is characterized in that: comprising:
Step 1: when air-conditioner moves, by operation high pressure, operation low pressure, inlet temperature and the discharge temperature under suction side that is separately positioned on compressor and the pressure sensor of discharging side and the current running status of temperature sensor detection compressor;
Step 2: detected operation high pressure in the step 1, operation low pressure, inlet temperature and discharge temperature are compared with corresponding a reference value respectively, thereby judge coolant quantity whether not enough of compressor, and suitably append the injection refrigerant from the trend compressor according to judged result; With
Step 3: with the coolant quantity judged in the step 2 whether not enough information is presented on the display screen of remote controller or control panel.
2. the control method that prevents insufficient infusion of refrigerant of composite air conditioner according to claim 1, it is characterized in that: described step 3 comprises:
First process: if the judged result of step 2 is: outdoor expansion valve has been opened to respect to wide-open first percentage (X1%) degree, the discharge temperature of compressor is higher than first temperature (Y1), then injects solicited message according to the shown refrigerant that appends of display screen; With
Second process: append the refrigerant of the A% that injects the whole coolant quantities in the air-conditioner to compressor, and continue operation 3 minutes.
3. the control method that prevents insufficient infusion of refrigerant of composite air conditioner according to claim 1, it is characterized in that: described step 3 also comprises:
The 3rd process: append the refrigerant of the A% that injects the whole coolant quantities in the air-conditioner and continue operation after 3 minutes to compressor, whether the opening degree of further judging outdoor expansion valve has reached second percentage (X2%) degree with respect to complete opening, and judges whether the discharge temperature of compressor is higher than second temperature (Y2); If judged result is: the opening degree of outdoor expansion valve has reached second percentage (X2%) degree with respect to complete opening, and the discharge temperature of compressor has reached second temperature (Y2); With
The 4th process: then inject solicited message, append the refrigerant of the B% that injects the whole coolant quantities in the air-conditioner to compressor, and continue operation 3 minutes according to the shown refrigerant that appends of display screen.
4. the control method that prevents insufficient infusion of refrigerant of composite air conditioner according to claim 1, it is characterized in that: described step 3 also comprises:
The 5th process: append the refrigerant of the B% that injects the whole coolant quantities in the air-conditioner and continue operation after 3 minutes to compressor, further judge whether the opening degree of outdoor expansion valve has reached with respect to the 3rd percentage (X3%) that opens fully, and judge whether the discharge temperature of compressor has reached the 3rd temperature (Y3); If judged result is: the opening degree of outdoor expansion valve has reached with respect to the 3rd percentage (X3%) degree that opens fully, and the discharge temperature of compressor has reached the 3rd temperature (Y3); With
The 6th process: the append refrigerant shown according to display screen injects solicited message, appends the refrigerant of the C% that injects the whole coolant quantities in the air-conditioner to compressor, and continues operation 3 minutes.
5. according to the control method that prevents insufficient infusion of refrigerant of claim 1,2,3 or 4 described composite air conditioners, it is characterized in that: described X1%, X2%, X3% are predefined three percentages that increase progressively successively; Described Y1, Y2, Y3 are predefined three positive numbers that increase progressively successively; Described A%, B%, C% are predefined three percentages that increase progressively successively.
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| CN 200610014103 CN101086369A (en) | 2006-06-06 | 2006-06-06 | Control method of composite type air conditioner for preventing insufficient infusion of refrigerant |
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| CN 200610014103 CN101086369A (en) | 2006-06-06 | 2006-06-06 | Control method of composite type air conditioner for preventing insufficient infusion of refrigerant |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101788361A (en) * | 2009-01-26 | 2010-07-28 | 福特全球技术公司 | Detect the system of the low charge of cold-producing medium in the vehicle air conditioner |
| CN101539316B (en) * | 2008-03-21 | 2011-06-01 | Lg电子株式会社 | Air-conditioner and method for charging refrigerant of air-conditioner |
| CN101749825B (en) * | 2008-12-04 | 2012-10-03 | 珠海格力电器股份有限公司 | Refrigerant super-addition control method for composite air conditioner |
| CN103429445A (en) * | 2011-03-23 | 2013-12-04 | 罗伯特·博世有限公司 | Method and diagnostic tester for detecting a fault in a cooling circuit of a motor vehicle |
| CN103791588A (en) * | 2014-01-21 | 2014-05-14 | 宁波奥克斯电气有限公司 | Control method for solving problem of shortage of refrigerants of multi-link air conditioning unit |
| CN106765973A (en) * | 2017-01-03 | 2017-05-31 | 青岛海尔空调器有限总公司 | The control method and air-conditioning of a kind of lack of fluorine of air-conditioners detection |
| CN108644982A (en) * | 2018-05-10 | 2018-10-12 | 青岛海尔空调器有限总公司 | Method and air conditioner for air conditioner control |
| CN110940040A (en) * | 2019-12-16 | 2020-03-31 | 宁波奥克斯电气股份有限公司 | Refrigerant detection and filling method and air conditioning system |
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- 2006-06-06 CN CN 200610014103 patent/CN101086369A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539316B (en) * | 2008-03-21 | 2011-06-01 | Lg电子株式会社 | Air-conditioner and method for charging refrigerant of air-conditioner |
| CN101749825B (en) * | 2008-12-04 | 2012-10-03 | 珠海格力电器股份有限公司 | Refrigerant super-addition control method for composite air conditioner |
| CN101788361B (en) * | 2009-01-26 | 2014-04-23 | 福特全球技术公司 | System for detecting low charge of refrigerant in air conditioner protection system |
| CN101788361A (en) * | 2009-01-26 | 2010-07-28 | 福特全球技术公司 | Detect the system of the low charge of cold-producing medium in the vehicle air conditioner |
| US9403416B2 (en) | 2011-03-23 | 2016-08-02 | Robert Bosch Gmbh | Method and diagnostic tester for detecting a fault in a cooling circuit of a motor vehicle |
| CN103429445A (en) * | 2011-03-23 | 2013-12-04 | 罗伯特·博世有限公司 | Method and diagnostic tester for detecting a fault in a cooling circuit of a motor vehicle |
| CN108489734A (en) * | 2011-03-23 | 2018-09-04 | 罗伯特·博世有限公司 | The method and diagnostic test device of failure in the cooling circuit of motor vehicle for identification |
| CN103791588A (en) * | 2014-01-21 | 2014-05-14 | 宁波奥克斯电气有限公司 | Control method for solving problem of shortage of refrigerants of multi-link air conditioning unit |
| CN103791588B (en) * | 2014-01-21 | 2016-08-24 | 宁波奥克斯电气股份有限公司 | Solve the control method that VRF Air Conditioning System cold-producing medium is on the low side |
| CN106765973A (en) * | 2017-01-03 | 2017-05-31 | 青岛海尔空调器有限总公司 | The control method and air-conditioning of a kind of lack of fluorine of air-conditioners detection |
| CN106765973B (en) * | 2017-01-03 | 2020-06-30 | 青岛海尔空调器有限总公司 | Control method for fluorine deficiency detection of air conditioner and air conditioner |
| CN108644982A (en) * | 2018-05-10 | 2018-10-12 | 青岛海尔空调器有限总公司 | Method and air conditioner for air conditioner control |
| CN110940040A (en) * | 2019-12-16 | 2020-03-31 | 宁波奥克斯电气股份有限公司 | Refrigerant detection and filling method and air conditioning system |
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