33 results about "Fluorine deficiency" patented technology

The invention provides an air conditioner refrigerant fluorine deficiency judgment method and device. The method comprises the following steps: acquiring the inner-ring temperature and inner-tube temperature of an air conditioner after the air conditioner is started up and operates for a first preset time; acquiring the evaporation pressure of the air conditioner; and when the evaporation pressure is less than or equal to a refrigerant fluorine deficiency pressure judgment critical value and the difference between the inner-ring temperature and the inner-tube temperature is less than or equal to a first preset difference, controlling the air conditioner to get into a fluorine deficiency judgment mode. The method and the device solve the technical problem that refrigerant deficiency cannot be detected effectively in the prior art, achieve the purpose of effectively finding whether the air conditioner lacks fluorine, and are simple to realize.

The invention discloses an air conditioner fluorine deficiency detection control method and an air conditioner, and belongs to the technical field of air conditioners. The control method comprises the steps that the exhaust temperature of a compressor of the air conditioner is detected; the outer surface temperature of a body of the compressor is detected; according to the temperature difference value between the exhaust temperature and the outer surface temperature, the temperature range where the temperature difference value is located and the air conditioner fluorine deficiency quantity corresponding to the temperature range are determined; and a protection mode preset for air conditioner operation is controlled according to the air conditioner fluorine deficiency quantity. By means of the air conditioner fluorine deficiency detection control method, according to the exhaust temperature and the outer surface temperature of the compressor, the actual fluorine quantity of an air conditioner system can be judged by detecting the temperature change condition between the exhaust temperature and the outer surface temperature of the compressor, thus, protection measures can be timely taken when fluorine deficiency occurs to the air conditioner, and safe operation of the air conditioner is effectively ensured.

The application relates to a fluorine deficiency detection control method, device, system for temperature adjusting equipment and an air conditioner. The method includes the following steps: acquiringoutdoor ambient temperature, air outlet temperature of an inner machine and module high pressure of an outer machine; acquiring a detection result according to the outdoor ambient temperature and theair outlet temperature of the internal machine when the module high pressure of the outer machine is within the preset high pressure target range; and acquiring the detection result according to themodule high pressure of the outer machine and the preset high pressure target range when the module high pressure of the outer machine is not within the preset high pressure target range. The outdoorambient temperature, the air outlet temperature of the inner machine, the module high pressure of the outer machine and the preset high pressure target range are combined for judging, the temperatureadjusting equipment can be automatically judged whether the fluorine is short or not while the refrigeration experience of users is not affected, so that the fluorine deficiency detection efficiency is effectively improved.

The invention discloses a fluorine deficiency judgment method and a heat pump water heater. The fluorine deficiency judgment method comprises the steps that whether a unit has a defrosting mark position or not is judged, if yes, the air suction superheat degree of the unit and the opening degree of a throttling device are collected, and whether the unit is lack of fluorine or not is judged according to the air suction superheat degree and the opening degree. Whether fluorine deficiency judgment is carried out or not is determined according to whether the unit has the defrosting mark position or not, so that fluorine-leaking units can be identified in time. Whether the unit is lack of fluorine or not is precisely judged by comprehensively utilizing the defrosting mark position, the air suction superheat degree, the opening degree of the throttling device and other parameters, early warning is conducted in advance to avoid performance attenuation of the unit due to excessive loss of a refrigerant, and meanwhile, the cost for filling the refrigerant due to excessive fluorine leakage is reduced.

The invention discloses a fluorine-deficient protection method for an air conditioner. The method comprises the following steps of obtaining an initial inner ring temperature and an initial inner tubetemperature and calculating an initial temperature difference, wherein the initial temperature difference is a difference value between the initial inner ring temperature and the initial inner tube temperature; judging whether the initial inner ring temperature is in a preset inner ring temperature range and the initial temperature difference is less than or equal to a first preset difference value; if so, detecting an inner ring temperature and an inner tube temperature in real time and calculating a real-time temperature difference, wherein the real-time temperature difference is a difference value between the inner ring temperature and the inner tube temperature both detected in real time; and controlling a compressor to stop when a difference value between the real-time temperature difference and the initial temperature difference is less than or equal to a second preset difference value, and when the duration generated when a difference value between the inner tube temperature detected in real time and the initial inner tube temperature is less than or equal to a third preset difference value reaches a first preset time length. The invention also discloses the air conditionerand a readable storage medium. The temperature difference parameters are judged for a plurality of times to ensure that false protection of the air conditioner under the condition of no fluorine deficiency or a little fluorine deficiency amount can not be caused, and the occurrence of false protection is reduced.

The invention provides an air conditioner fluorine deficiency protection control method, an air conditioner and a computer readable storage medium. The air conditioner fluorine deficiency protection control method comprises the steps that S1, the air conditioner is started to operate; S2, the air conditioner obtains the exhaust superheat degree SH and the suction superheat degree SSH in real time; S3, the air conditioner judges whether the conditions that the SH is larger than or equal to a value obtained by multiplying beta and a first preset value and the SSH is larger than or equal to a value obtained by multiplying beta and a second preset value are met at the same time or not, if yes, the step S4 is executed, and if not, the air conditioner continues to operate; and S4, the air conditioner detects the outer environment temperature Tw in real time, whether the high-pressure saturation temperature Tc meets the condition that the sum of Tc and K is smaller than or equal to Tw or not is judged, if yes, a compressor is subjected to shutdown protection, and a fluorine-lacking prompting lamp on an air conditioner display lamp panel is turned on for a long time. According to the air conditioner fluorine deficiency protection control method, on one hand, the judgment accuracy of the air conditioner on the fluorine deficiency condition is improved, and the misjudgment condition is avoided; and on the other hand, the effectiveness of the air conditioner fluorine deficiency protection control method is ensured. In addition, the compressor is subjected to shutdown protection after fluorine deficiency is judged, so that damage to parts due to running of the air conditioner in the fluorine deficiency state is avoided, and the running reliability of a unit is improved.

The invention provides a control method for fluorine deficiency protection of a constant-speed air conditioner. The control method comprises the following steps of starting up the constant-speed air conditioner under a cooling mode, and detecting initial temperature T0 of a middle coiler of an evaporator; after a compressor continuously runs for first rated time, detecting real-time temperature T1of the middle coiler of the evaporator; comparing T0-T1 with first rated temperature Delta T1, and if T0-T1 is greater than Delta T1, quitting detection on fluorine deficiency protection; if T0-T1 isnot greater than Delta T1, and after the compressor continuously runs for second rated time, detecting real-time temperature T1' of the middle coiler of the evaporator and real-time temperature T2 ofan air inlet of an indoor unit of the air conditioner; comparing T0-T1' with second rated temperature Delta T2, and if T0-T1' is greater than Delta T2, quitting detection on fluorine deficiency protection; if T0-T1' is not greater than Delta T2, comparing T2-T1' with third rated temperature Delta T3, and if T2-T1' is greater than Delta T3, quitting detection on fluorine deficiency protection; andif T2-T1' is not greater than Delta T3, entering fluorine deficiency protection. The method solves the problem that the compressor is damaged due to fluorine deficiency running of the air conditionerunder the cooling mode, and therefore, mistake protection cannot occur under the condition that the air conditioner is not lacking of fluorine or lacking of very little fluorine, and product reliability is increased.

The invention discloses a fluorine deficiency control method for a reheating mode of a reheating and dehumidification multi-split air conditioner system. The system comprises an outdoor unit and a plurality of indoor units; each indoor unit comprises an indoor unit first heat exchanger, an indoor unit second heat exchanger, a first expansion valve and a second expansion valve, wherein the first expansion valve is connected onto a pipeline of the indoor unit first heat exchanger, and the second expansion valve is connected onto a pipeline of the indoor unit second heat exchanger; the control method comprises a fluorine deficiency judging step: detecting a first difference value between a superheat degree of a first heat exchanger of a started indoor unit and a target superheat degree, and a second difference value between temperature of an outlet pipe of a gas-liquid separator of the outdoor unit and a refrigerant saturation temperature value corresponding to a pressure value of a low-pressure side, and judging whether the system is deficient in fluorine or not according to a result of the first difference value and the second difference value. According to the fluorine deficiency control method for the reheating mode, disclosed by the invention, the reheating and dehumidification multi-split air conditioner system is enabled to judge whether the fluorine is deficient or not accurately, therefore a foundation is laid for timely quit of a fluorine-deficiency state.

The invention belongs to the technical field of air conditioners, and aims at solving the problem that an existing air conditioner adopts the difference value of exhaust gas temperature of a compressor and the temperature of the outer surface of a compressor body to determine the fluorine deficiency amount, which cannot accurately reflect the true fluorine deficiency condition of the air conditioner. The invention provides a fluorine deficiency detection control method of an air conditioner, and the air conditioner comprises a compressor and an outdoor unit. The fluorine deficiency detection control method comprises the steps of obtaining working current of the compressor; judging whether or not the working current of the compressor is within a preset current range; if not, furthermore obtaining exhaust gas temperature of the compressor and refrigerant temperature of an outlet of the outdoor unit; calculating the difference value between the exhaust gas temperature of the compressor and the refrigerant temperature of the outlet of the outdoor unit; and determining the fluorine deficiency amount of the air conditioner according to the difference value. By means of the fluorine deficiency detection control method of the air conditioner, parameters about the true running condition of the air conditioner can be reflected, thus the accuracy of detecting the fluorine deficiency condition of the air conditioner is greatly improved, and the user experience is improved.

The invention discloses an air conditioner fluorine lack protection method and an air conditioner. The air conditioner fluorine lack protection method comprises the following steps that when the air conditioner operates and refrigerates, the temperature change of an inner disc is monitored in real time, and whether the air conditioner is judged in a normal refrigeration state or not; when the airconditioner is judged to be in the normal refrigeration state, the difference value between the return air temperature and the inner plate temperature is detected, and the difference value is comparedwith a preset first range and a preset second range; when the air conditioner is judged in an abnormal refrigeration state, the fluorine-lack signal is reported, and the fluorine-lack protection operation is started; when the difference value between the return air temperature and the inner plate temperature is in the preset first range, so that the air conditioner is overloaded; and when the difference value between the return air temperature and the inner plate temperature is in the preset second range, the fluorine-deficient signal is reported, and the fluorine-lack protection operation isstarted. According to the method, the misoperation can be effectively prevented, the protection is more accurate, the method is simple, a new hardware facility does not need to be added, only the program needs to be changed on the basis of the existing hardware, the cost is more optimized, and the applicability is stronger.

The invention relates to the field of air conditioners, in particular to an air conditioner control method which comprises the steps that the real-time inner pipe temperature is obtained in a refrigeration mode or a dehumidification mode of an air conditioner; when the real-time inner pipe temperature T < inner pipe > within the first continuous time is smaller than or equal to T < anti-freezing entering >, the air conditioner is controlled to enter an anti-freezing protection program; when the inner pipe temperature T0 at the initial operation moment within the second continuous time is different from the real-time inner pipe temperature Tinner pipe and the indoor environment temperature Tinner ring is different from the real-time inner pipe temperature Tinner pipe, the air conditioner is controlled to enter a fluorine-lacking protection program; and in the heating mode of the air conditioner, the real-time inner pipe temperature is obtained, and when the real-time inner pipe temperature T inner pipe is larger than or equal to T and overload enters, the air conditioner is controlled to enter an overload protection program. Overload protection, anti-freezing protection and fluorine deficiency protection can be carried out at proper time, the reliability of the air conditioner is improved, and the service life of the air conditioner is prolonged.

The invention discloses a scroll compressor. The scroll compressor comprises an outer shell, a supporting frame, a compression mechanism, an Euclidean ring, an insulating and spacing plate as well as a flexible structure, wherein the supporting frame is fixed in the outer shell, and comprises a main supporting frame and an auxiliary supporting frame; the compression mechanism is supported in the supporting frame and comprises a second scroll plate constructional element and a first scroll plate constructional element which are connected in a meshed mode; the Euclidean ring is combined with the second scroll plate constructional element and the first scroll plate constructional element so as to prevent the relative rotation between the second scroll plate constructional element and the first scroll plate constructional element; the insulating and spacing plate comprises a pressure discharge element which is connected with a high-pressure cavity and a low-pressure cavity; the flexible structure is arranged between the supporting frame and the first scroll plate constructional element. The scroll compressor provided by the invention is applied to different types of scroll and rotary compressors, has favorable automatically-regulating and scroll protection functions, and can release gases from the high-pressure side to the low-pressure side under the ultra-pressure or fluorine-free running condition, so that moving plate mechanisms and static plate mechanisms are protected from being damaged.

The invention discloses a fault self-checking method of an air conditioner and the multi-split air conditioner. The method is applied to the multi-split air conditioner comprising at least one outdoorunit, multiple indoor units and a controller. The method includes the following steps that the air conditioner is controlled to enter a self-checking mode; when the self-checking mode refers to refrigeration self-checking, whether the air conditioner has a fluorine deficiency fault is judged on the basis of the temperature of a first indoor unit liquid pipe, the temperature of a second indoor unit liquid pipe and the temperature of an outdoor unit coil pipe of the air conditioner, and when the air conditioner does not have the fluorine deficiency fault, fault self-checking is conducted according to first operation parameters and first preset parameters; and when the self-checking mode refers to heating self-checking, fault self-checking is conducted according to second operation parameters and second preset parameters, so that fault self-checking of the air conditioner is achieved, and the self-checking accuracy and efficiency are improved.

The invention provides an air conditioner fluorine deficiency protection method and device and an air conditioner, and relates to the technical field of air conditioners. The air conditioner fluorine deficiency protection method comprises the steps that the temperature values of an evaporator are received; ambient temperature values are received; the difference values between the temperature values of the evaporator and the environment temperature values are calculated, and the temperature difference values are obtained; a first preset temperature value and a second preset temperature value are obtained according to the plurality of temperature difference values, obtained through calculation, of the evaporator under the condition of various environment temperatures; the first preset temperature value is greater than the second preset temperature value, and the air conditioner is controlled to execute fluorine deficiency protection according to the first preset temperature value, the second preset temperature value and the temperature difference values. The air conditioner fluorine deficiency protection device and the air conditioner can both execute the air conditioner fluorine deficiency protection method. According to the air conditioner fluorine deficiency protection method and device and the air conditioner, the technical problem that the air conditioning effect of the air conditioner is affected due to lack of a fluorine deficiency protection method in the prior art can be solved.