CN105115111B - The temperature-sensitive packet inspection method of air conditioner indoor unit and air conditioner indoor unit - Google Patents
The temperature-sensitive packet inspection method of air conditioner indoor unit and air conditioner indoor unit Download PDFInfo
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- CN105115111B CN105115111B CN201510599377.8A CN201510599377A CN105115111B CN 105115111 B CN105115111 B CN 105115111B CN 201510599377 A CN201510599377 A CN 201510599377A CN 105115111 B CN105115111 B CN 105115111B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air conditioner indoor unit and a kind of temperature-sensitive packet inspection method of air conditioner indoor unit, the air conditioner indoor unit includes indoor heat exchanger, temperature sensor, temperature sensing package and processor.The indoor heat exchanger includes coil pipe.The temperature sensor is for detecting indoor environment temperature.The temperature sensing package is set on the coil pipe.The temperature sensing package is used to detect the temperature of the coil pipe.The processor connects the temperature sensor and the temperature sensing package.The processor is used to calculate the absolute value of the difference for the temperature that the indoor environment temperature is detected with the temperature sensing package, and judge whether the absolute value is less than given threshold, and determine that the temperature sensing package falls off and exports alarm signal when the absolute value is less than the given threshold.The temperature sensing package of the air conditioner indoor unit of embodiment of the present invention heat exchanger indoors can remind user to close air conditioner in time after falling off, and protect the refrigeration system of air conditioner.
Description
Technical field
The present invention relates to air conditioner technical field more particularly to a kind of air conditioner indoor unit and a kind of temperature-sensitives of air conditioner indoor unit
Packet inspection method.
Background technique
Temperature sensing package on the coil pipe of the indoor heat exchanger of air conditioner indoor unit is changed in room when air conditioner indoor unit is run for detecting
The temperature of the coil pipe of hot device, air conditioner indoor unit judge whether the operation of indoor heat exchanger is normal according to the temperature of coil pipe.If temperature-sensitive
Packet falls off, then can not detect the temperature of coil pipe, causes to change in room when indoor heat exchanger temperature is excessively high when air conditioner heat-production or freezes
Hot device temperature is too low and frosting occurs, therefore damages the refrigeration system of air conditioner.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of sky
Adjust the temperature-sensitive packet inspection method of indoor unit and a kind of air conditioner indoor unit.
The air conditioner indoor unit of embodiment of the present invention includes indoor heat exchanger, temperature sensor, temperature sensing package and processor.Institute
Stating indoor heat exchanger includes coil pipe.The temperature sensor is for detecting indoor environment temperature.The temperature sensing package is set to described
On coil pipe.The temperature sensing package is used to detect the temperature of the coil pipe.The processor and the temperature sensor and the temperature-sensitive
Packet connection.The difference for the temperature that the processor is used to calculate the indoor environment temperature and the temperature sensing package detects it is absolute
Value, and judge whether the absolute value is less than given threshold, and when the absolute value is less than the given threshold described in judgement
Temperature sensing package falls off and exports alarm signal.
The air conditioner indoor unit of embodiment of the present invention can be according to the temperature that indoor environment temperature and temperature sensing package detect
The absolute value of difference determines whether the temperature sensing package on the coil pipe of indoor heat exchanger falls off, and alarm signal is issued when temperature sensing package falls off
Number, user can be reminded to close air conditioner in time, to protect the refrigeration system of air conditioner.
In some embodiments, the air conditioner indoor unit includes indoor fan, and the given threshold is with the indoor wind
The revolving speed of machine improves and reduces, and reduces and increase with the revolving speed of the indoor fan.
In some embodiments, the given threshold improves with the operating frequency of compressor and is increased, and with the pressure
The operating frequency of contracting machine reduces and reduces.
In some embodiments, the processor, which is used to be switched in the air conditioner indoor unit, runs the first preset time
Afterwards, the absolute value is calculated.
In some embodiments, the processor is less than whether the given threshold continues for judging the absolute value
Second preset time simultaneously exports the alarm signal after the absolute value is less than second preset time of given threshold.
In some embodiments, the air conditioner indoor unit includes alarm unit, and the alarm unit is used for according to
Alarm signal sending sound and/or light warning message.
In some embodiments, the processor is used to issue the sound and/or light alarm signal in the alarm unit
The air conditioner indoor unit is closed after breath third preset time.
Detection method includes the following steps for the temperature sensing package of the air conditioner indoor unit of embodiment of the present invention:
S1 detects indoor environment temperature and acquires the temperature that temperature sensing package detects；
S2 calculates the absolute value of the difference for the temperature that the indoor environment temperature is detected with the temperature sensing package；
S3, judges whether the absolute value is less than given threshold, if so, entering step S4；If it is not, returning to the step
S1；And
S4 determines that the temperature sensing package falls off from the coil pipe of indoor heat exchanger and exports alarm signal.
The air conditioner indoor unit of embodiment of the present invention can be according to the exhausted of the difference of the temperature of indoor environment temperature and coil pipe
Determine value whether the temperature sensing package on the coil pipe of indoor heat exchanger falls off, and issue alarm signal when temperature sensing package falls off, can mention
Awake user closes air conditioner in time, to protect the refrigeration system of air conditioner.
In some embodiments, the air conditioner indoor unit includes indoor fan, and the given threshold is with the indoor wind
The revolving speed of machine improves and reduces, and reduces and increase with the revolving speed of the indoor fan.
In some embodiments, the given threshold improves with the operating frequency of compressor and is increased, and with the pressure
The operating frequency of contracting machine reduces and reduces.
In some embodiments, before the step S1, the temperature-sensitive packet inspection method of the air conditioner indoor unit includes step
It is rapid: S01, air conditioner indoor unit booting first preset time of operation.
In some embodiments, the step S4 includes: to judge that the absolute value is less than whether the given threshold holds
Continuous second preset time, if so, the alarm signal is exported, if it is not, continuing the step S4.
In some embodiments, the temperature-sensitive packet inspection method of the air conditioner indoor unit further comprises the steps of: S5, according to described
Alarm signal sending sound and/or light warning message.
In some embodiments, the temperature-sensitive packet inspection method of the air conditioner indoor unit further comprises the steps of: S6, in output institute
The air conditioner indoor unit is closed after stating alarm signal third preset time.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the module frame chart of the air conditioner indoor unit of embodiment of the present invention.
Fig. 2 is the flow diagram of the temperature-sensitive packet inspection method of the air conditioner indoor unit of embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include fisrt feature right above second feature and oblique upper, or be merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Referring to Fig. 1, the air conditioner indoor unit 100 of embodiment of the present invention include indoor heat exchanger 10, temperature sensor 20,
Temperature sensing package 30, processor 40 and indoor fan 50.Indoor heat exchanger 10 includes coil pipe 11.Temperature sensor 20 is for detecting interior
Environment temperature T1.Temperature sensing package 30 is set on coil pipe 11.Temperature sensing package 30 is used to detect the temperature of coil pipe 11.Processor 40 connects temperature
Spend sensor 20 and temperature sensing package 30.Processor 40 is used to calculate the temperature T2's that indoor environment temperature T1 is detected with temperature sensing package 30
The absolute value of difference | T1-T2 |, and judge absolute value | and T1-T2 | whether it is less than given threshold △ T, and in absolute value | T1-T2 |
Determine that temperature sensing package 30 falls off and exports alarm signal when less than given threshold △ T.
Specifically, in air-conditioning heating, refrigerant is by the compressor compresses of air-conditioner outdoor unit at the gas of high temperature and pressure from row
Tracheae discharge, enters the room heat exchanger 10, generates heat exchange with room air, is condensed into liquid coolant, warp knuckle after releasing heat
Stream device throttling becomes the gas-liquid two-phase of low-temp low-pressure, into the outdoor heat exchanger of outdoor unit, carries out heat exchange with outdoor air
Outdoor air heat is absorbed, is returned in compressor, is so recycled.Meanwhile indoor fan 50 is opened to generate negative pressure, and gas is made
Quickening flows through indoor heat exchanger 10, so that indoor temperature quickly rises.The process of refrigerastion of air-conditioning and heating operations phase
Instead.
Heat exchange occurs with extraneous when flowing through indoor heat exchanger 10 due to the refrigerant in air-conditioning refrigeration system, normally
In the case of (when such as temperature sensing package 30 does not fall off from the coil pipe 11 of indoor heat exchanger 10), in air-conditioning heating, indoor environment temperature
Degree T1 is less than the temperature T2 that temperature sensing package 30 detects, and when air conditioner refrigerating, indoor environment temperature T1 is greater than temperature sensing package 30 and detects
Temperature T2.Once temperature sensing package 30 falls off from the coil pipe 11 of indoor heat exchanger 10, the temperature value T2 that temperature sensing package 30 detects is connect
Nearly indoor environment temperature T1.Therefore, a threshold value is set, in the case where operation of air conditioner, when detecting indoor environment temperature T1
The absolute value of the difference of the temperature T2 detected with temperature sensing package 30 | T1-T2 | when being less than given threshold △ T, so that it may judge temperature-sensitive
Packet 30 falls off from the coil pipe 11 of indoor heat exchanger 10.
Alarm signal can be sent to the preset reception terminal of user via wireless mode and/or wired mode, such as a
People's computer and/or mobile terminal, to carry out remote alarms.It is appreciated that when processor 40 carries out remote alarms, in air conditioning chamber
Machine 100 includes corresponding equipment and device to realize the connection of wireless mode and/or wired mode.
Therefore, the air conditioner indoor unit 100 of embodiment of the present invention can be examined according to indoor environment temperature T1 and temperature sensing package 30
The absolute value of the difference of the temperature T2 measured | T1-T2 | determine whether the temperature sensing package 30 on the coil pipe 11 of indoor heat exchanger 10 takes off
It falls, and issues alarm signal when temperature sensing package 30 falls off, user can be reminded to close air conditioner in time, to protect air conditioner
Refrigeration system.
In the present embodiment, the value range of given threshold △ T is between 0 DEG C to 30 DEG C, and the value range is according to sky
Tune is tested under different working conditions to be obtained.
In one example, when air-conditioning heating, the temperature of the coil pipe 11 of indoor heat exchanger 10 is 40 DEG C, given threshold △ T
It is 3 DEG C, indoor environment temperature T1 is 18 DEG C, and under normal circumstances, the temperature T2 that temperature sensing package 30 detects at this time is 40 DEG C.If temperature-sensitive
Packet 30, which falls off, to be exposed in external environment, then the temperature T2 that temperature sensing package 30 detects is less than 40 DEG C, and for example 20 DEG C, due to indoor ring
The absolute value of the difference for the temperature T2 that border temperature T1 and temperature sensing package 30 detect | T1-T2 | be less than given threshold △ T, i.e., | 18 DEG C-
20 DEG C | < 3 DEG C, then determine that temperature sensing package 30 has fallen off at this time.
In another example, when air conditioner refrigerating, indoor environment temperature T1 is 23 DEG C, the coil pipe 11 of indoor heat exchanger 10
Temperature is 2 DEG C, and given threshold △ T is 5 DEG C, and under normal circumstances, the temperature T2 that temperature sensing package 30 detects at this time is 2 DEG C.If temperature-sensitive
Packet 30, which falls off, to be exposed in external environment, then the temperature T2 that temperature sensing package 30 detects is greater than 2 DEG C, for example 19 DEG C, due to indoor ring
The absolute value of the difference for the temperature T2 that border temperature T1 and temperature sensing package 30 detect | T1-T2 | be less than given threshold △ T, i.e., | 23 DEG C-
19 DEG C | < 5 DEG C, then determine that temperature sensing package 30 falls off from coil pipe 11 at this time.
In the present embodiment, given threshold △ T can be fixation under the operational mode of the same air conditioner indoor unit 100
Value, under the different operational mode of air conditioner indoor unit 100, given threshold △ T may be set to different value.For example, such as above-mentioned example
In, in heating mode, given threshold △ T=3 DEG C, in refrigeration mode, given threshold △ T=5 DEG C.And in other certain realities
It applies in mode, even if given threshold △ T can be according to the operation of air conditioner under the operational mode of the same air conditioner indoor unit 100
State is adjusted, and next it will be described for these other embodiments.
In an other embodiments, given threshold △ T is improved with the revolving speed of indoor fan 50 and is reduced, and with interior
The revolving speed of blower 50 reduces and increases.
Specifically, when indoor fan 50 rotates, air is sent to 10 surrounding of indoor heat exchanger and is exchanged heat, and will be after heat exchange
Air interior is sent to by the air outlet of air conditioner indoor unit 100.Certain in the operating frequency f of the compressor of air-conditioner outdoor unit
Under the conditions of, i.e., the heating capacity of air-conditioning or refrigerating capacity are constant, and the surface temperature of the coil pipe 11 of indoor heat exchanger 10 is with indoor fan
50 revolving speed changes.For example, in air-conditioning heating, indoor environment temperature T1 is less than the temperature T2 ' of coil pipe 11, i.e. T1 <
T2'.After the revolving speed of indoor fan 50 improves, accelerate the radiating rate of indoor heat exchanger 10, due to coolant transmission heat when
Between it is poor so that temperature of the surface temperature of the coil pipe 11 of indoor heat exchanger 10 lower than refrigerant in air-conditioning refrigeration system, i.e. T2 ' subtract
It is small, thus the absolute value of the difference for the temperature T2 that indoor environment temperature T1 and temperature sensing package 30 detect | T1-T2 | compare indoor fan
Absolute value before 50 revolving speed raising | T1-T2 | small, the amplitude that the revolving speed of indoor fan 50 improves is bigger, indoor environment temperature
The absolute value of the difference of the temperature T2 of T1 and coil pipe 11 | T1-T2 | it is smaller.Similarly, it is indoor after the revolving speed of indoor fan 50 reduces
The surface temperature of the coil pipe 11 of heat exchanger 10 is higher than the temperature of refrigerant in air-conditioning refrigeration system, thus indoor environment temperature T1 and sense
The absolute value of the difference for the temperature T2 that thermometer bulb 30 detects | T1-T2 | than the absolute value before the revolving speed reduction of indoor fan 50 |
T1-T2 | big, the amplitude that the revolving speed of indoor fan 50 reduces is smaller, the temperature that indoor environment temperature T1 is detected with temperature sensing package 30
The absolute value of the difference of T2 | T1-T2 | it is bigger.
To sum up, under conditions of the operating frequency f of compressor is certain, the revolving speed of indoor fan 50 is bigger, | T1-T2 | more
It is small；The revolving speed of indoor fan 50 is smaller, | T1-T2 | it is bigger.Therefore, given threshold △ T with indoor fan 50 revolving speed improve and
Reduce, and reduce and increase with the revolving speed of indoor fan 50, is conducive to raising processor 40 and judges what whether temperature sensing package 30 fell off
Accuracy thereby reduces the False Rate of processor 40.
In another other embodiments, given threshold △ T is improved with the operating frequency f of compressor and is increased, and with
The operating frequency f of compressor is reduced and is reduced.
Specifically, under conditions of the revolving speed of the indoor fan 50 of air conditioner indoor unit 100 is certain, i.e. indoor heat exchanger 10
Radiating rate is constant, and the surface temperature of the coil pipe 11 of indoor heat exchanger 10 changes as the operating frequency f of compressor changes
Become.For example, indoor environment temperature T1 is greater than the temperature T2 ' of coil pipe 11, i.e. T1 > T2 ', the operating of compressor in air conditioner refrigerating
Frequency f increases the refrigerating capacity of air-conditioning after improving, the temperature T2 ' decline of coil pipe 11, i.e. T2 ' reduces, thus indoor environment temperature
The absolute value of the difference for the temperature T2 that T1 and temperature sensing package 30 detect | T1-T2 | before the operating frequency f raising of compressor
Absolute value | T1-T2 | big, the amplitude that the operating frequency f of compressor is improved is bigger, and indoor environment temperature T1 and temperature sensing package 30 detect
The absolute value of the difference of the temperature T2 arrived | T1-T2 | it is bigger.Similarly, after the operating frequency f of compressor is reduced, the refrigerating capacity of air-conditioning
It reduces, thus the absolute value of the difference for the temperature T2 that the temperature sensing package 30 that indoor environment temperature T1 and temperature sensing package 30 detect detects |
T1-T2 | the absolute value before being reduced than the operating frequency f of compressor | T1-T2 | small, the width that the operating frequency f of compressor is reduced
Spend smaller, the absolute value of the difference for the temperature T2 that indoor environment temperature T1 and temperature sensing package 30 detect | T1-T2 | it is smaller.
To sum up, under conditions of the revolving speed of blower 50 is certain indoors, the operating frequency f of compressor is smaller, | T1-T2 | more
It is small；The operating frequency f of compressor is bigger, | T1-T2 | it is bigger.Therefore, given threshold △ T is improved with the operating frequency f of compressor
And increase, and with compressor operating frequency f reduce and increase be conducive to improve processor 40 judge whether temperature sensing package 30 falls off
Accuracy, the False Rate of processor 40 can be reduced.
In another other embodiments, when the revolving speed of indoor fan 50 and the operating frequency f of compressor occur simultaneously
When variation, given threshold △ T then according to because indoor fan 50 revolving speed change caused by given threshold △ T change amplitude and because
The amplitude of the variation of given threshold △ T caused by the operating frequency f of compressor changes determines jointly.For example, due to indoor fan 50
Revolving speed raising cause given threshold △ T reduce by 3 DEG C, and due to the operating frequency f of compressor raising cause given threshold △ T to mention
It is 2 DEG C high, then finally determine that given threshold △ T reduces by 1 DEG C.The False Rate of processor 40 can be reduced in this way.
In the present embodiment, preferably, processor 40, which is used to be switched in air conditioner indoor unit 100, runs the first preset time
After t1, absolute value is calculated | T1-T2 |.
Specifically, when air conditioner indoor unit 100 is just switched on, 11 temperature of coil pipe of indoor environment temperature T1 and indoor heat exchanger 10
T2 is almost equal, the absolute value of the difference for the temperature T2 that indoor environment temperature T1 and temperature sensing package 30 detect at this time | T1-T2 | compared with
It is small, if calculating absolute value at this time | T1-T2 |, processor 40 is it is possible that the case where judging by accident.Air conditioner indoor unit 100 is run
After a period of time, if temperature sensing package 30 does not fall off, the difference for the temperature T2 that indoor environment temperature T1 is detected with temperature sensing package 30
Absolute value | T1-T2 | be greater than or equal to given threshold △ T.In this way, air conditioner indoor unit 100 calculates after booting operation a period of time
| T1-T2 |, the False Rate of processor 40 can be reduced.
For example, the first preset time t 1 is 3~10 minutes, i.e., processor 40 is in the booting of air conditioner indoor unit 100 operation 3~10
Absolute value is calculated after minute | T1-T2 |.
In the present embodiment, processor 40 is for judging absolute value | T1-T2 | whether continue the less than given threshold △ T
Two preset time ts 2, and in absolute value | T1-T2 | alarm signal is exported after continuing the second preset time t 2 less than given threshold △ T
Number.
Specifically, temperature sensor 20 and temperature sensing package 30 during detection it is possible that abnormal, for example, due to certain
The indoor environment temperature T1 moment that a little factors cause temperature sensor 20 to detect increases, and then momentary recovery normally detects shape again
State.Therefore, absolute value | T1-T2 | continuing to export alarm signal again after the second preset time t 2 less than given threshold △ T can reduce
The False Rate of processor 40.For example, the second preset time t 2 is 3~10 minutes.
In one example, indoor environment temperature T1, the temperature that temperature sensing package 30 detects are T2, and given threshold △ T is
10 DEG C, the second preset time t 2 is 3 minutes.The temperature T2 that processor 40 calculates indoor environment temperature T1 and temperature sensing package 30 detects
Difference absolute value | T1-T2 |, if absolute value | T1-T2 | < 10 and continue 3 minutes, processor 40 exports alarm signal.
In the present embodiment, air conditioner indoor unit 100 includes alarm unit 60, and alarm unit 60 is according to alarm signal, hair
It speaks and/or light warning message, to realize local alarm.For example, alarm unit 60 may include the alarm for issuing light warning message
Lamp and/or display screen, when alarm, 100 alarm lamp of air conditioner indoor unit, which issues, to be continued or the visible light of flashing, air conditioner indoor unit 100
Display screen can show the text (such as fault code) as warning message.In another example alarm unit 60 may include sending sound report
The buzzer of alert information.For another example alarm unit 60 may include the alarm lamp and/or display screen for issuing light warning message, and hair
It speaks the buzzer of warning message.
In this way, air conditioner indoor unit 100 issues apparent warning message, convenient for reminding user to close air conditioner indoor unit in time
100。
In the present embodiment, processor 40 is also used to close air conditioning chamber after exporting alarm signal third preset time t 3
Interior machine 100.
For example, third preset time t 3 is 3~5 minutes.In one example, third preset time t 3 is 3 minutes, also
It is to say, after output alarm signal 3 minutes, processor 40 closes air conditioner indoor unit 100.
In this way, after processor 40 exports alarm signal for a period of time, if user does not take any controlling measurement empty
The operation of indoor unit 100 is adjusted, processor 40 closes air conditioner indoor unit 100, avoids air conditioner indoor unit 100 in temperature sensing package 30 from coil pipe
The refrigeration system of air conditioner is continued to run and damaged after falling off on 11.
Referring to Fig. 2, detection method includes the following steps for the temperature sensing package of the air conditioner indoor unit of one embodiment of the present invention:
S1 detects indoor environment temperature T1 and acquires the temperature T2 that temperature sensing package 30 detects；
S2 calculates the absolute value of the difference for the temperature T2 that indoor environment temperature T1 is detected with temperature sensing package 30 | T1-T2 |；
S3 judges absolute value | T1-T2 | whether it is less than given threshold △ T, if so, entering step S4；If it is not, return step
S1；And
S4 determines that temperature sensing package 30 falls off from the coil pipe 11 of indoor heat exchanger 10 and exports alarm signal.
Specifically, the temperature-sensitive packet inspection method of the air conditioner indoor unit of present embodiment can be by the air conditioning chamber of embodiment of above
Interior machine 100 is realized.In step sl, temperature sensor 20 detects indoor environment temperature T1, and processor 40 acquires indoor environment temperature
The temperature T2 that degree T1 and temperature sensing package 30 detect.
Processor 40 can be used for executing step S2~S4.
Heat exchange occurs with extraneous when flowing through indoor heat exchanger 10 due to the refrigerant in air-conditioning refrigeration system, normally
In the case of (when such as temperature sensing package 30 does not fall off from the coil pipe 11 of indoor heat exchanger 10), in air-conditioning heating, indoor environment temperature
Degree T1 is less than the temperature T2 that temperature sensing package 30 detects, and when air conditioner refrigerating, indoor environment temperature T1 is greater than temperature sensing package 30 and detects
Temperature T2.Once temperature sensing package 30 falls off from the coil pipe 11 of indoor heat exchanger 10, processor 40 is collected by temperature sensing package 30
Temperature T2 close to indoor environment temperature T1.Therefore, a threshold value is set, in the case where air conditioner indoor unit 100 is run, works as inspection
Measure the absolute value of indoor environment temperature T1 with the difference of the temperature T2 detected by temperature sensing package 30 | T1-T2 | it is less than setting threshold
When value △ T, so that it may judge that temperature sensing package 30 falls off from the coil pipe 11 of indoor heat exchanger 10.
In the present embodiment, given threshold △ T can be fixation under the operational mode of the same air conditioner indoor unit 100
Value, under the operational mode of different air conditioner indoor unit 100, given threshold △ T may be set to different value.For example, such as above-mentioned example
In, in heating mode, given threshold △ T=3 DEG C, in refrigeration mode, given threshold △ T=5 DEG C.And in other certain realities
It applies in mode, even if given threshold △ T can be according to the operation of air conditioner under the operational mode of the same air conditioner indoor unit 100
State is adjusted.The case where given threshold △ T is adjusted according to the operating status of air conditioner can join embodiment of above
The corresponding part of air conditioner indoor unit 100, is no longer developed in details herein.
Preferably, in the present embodiment, before step S1, the detection method of temperature sensing package 30 is comprising steps of S01, air conditioning chamber
The interior booting of machine 100 the first preset time t 1 of operation.
Air conditioner indoor unit 100 enters normal working condition after running a period of time, can reduce processor 40 and calculate interior
The absolute value of the difference for the temperature T2 that environment temperature T1 and temperature sensing package 30 detect | T1-T2 | False Rate.
In the present embodiment, step S4 is comprising steps of judge absolute value | T1-T2 | whether held less than given threshold △ T
Continuous second preset time t 2, if so, determining that temperature sensing package 30 falls off and exports alarm signal, if it is not, continuing step S4.
In this way, the False Rate of processor 40 can be reduced.
In the present embodiment, 30 detection method of temperature sensing package of air conditioner indoor unit 100 further comprises the steps of:
S5, according to alarm signal sending sound and/or light warning message.
Specifically, alarm unit 60 is according to alarm signal, sending sound and/or light warning message, to realize local alarm.Example
Such as, alarm unit 60 may include the alarm lamp and/or display screen for issuing light warning message, and when alarm, air conditioner indoor unit 100 is alarmed
Lamp, which issues, to be continued or the visible light of flashing, 100 display screen of air conditioner indoor unit can show text (such as the failure as warning message
Code).In this way, air conditioner indoor unit 100 issues apparent warning message, convenient for reminding user to close air conditioner indoor unit 100 in time.
In the present embodiment, 30 detection method of temperature sensing package of air conditioner indoor unit 100 further comprises the steps of:
S6 closes air conditioner indoor unit 100 after exporting alarm signal third preset time t 3.
In this way, processor 40 can control in air conditioning chamber in the case where user can not close in person air conditioner indoor unit 100
Machine 100 is out of service after temperature sensing package 30 falls off, to protect the refrigeration system of air conditioner.
Other parts undeployed of the temperature-sensitive packet inspection method of the air conditioner indoor unit of present embodiment can join the above implementation
The same or like part of the air conditioner indoor unit 100 of mode, details are not described herein.
In conclusion the temperature-sensitive packet inspection method of the air conditioner indoor unit of embodiment of the present invention can be according to indoor environment temperature
Degree T1 and temperature sensing package 30 detect the absolute value of the difference of temperature T2 | T1-T2 | determine the sense on the coil pipe 11 of indoor heat exchanger 10
Whether thermometer bulb 30 falls off, and issues alarm signal when temperature sensing package 30 falls off, and user can be reminded to close air conditioner in time, to protect
The refrigeration system of air conditioner is protected.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principle of the present invention and objective and become
Type, the scope of the present invention are defined by the claims and their equivalents.
Claims (8)
1. a kind of air conditioner indoor unit characterized by comprising
Indoor heat exchanger, the indoor heat exchanger include coil pipe；
Temperature sensor, the temperature sensor is for detecting indoor environment temperature；
The temperature sensing package being set on the coil pipe, the temperature sensing package are used to detect the temperature of the coil pipe；And
The processor connecting with the temperature sensor and the temperature sensing package, the processor is for calculating the indoor environment temperature
The absolute value of the difference for the temperature that degree is detected with the temperature sensing package, and judge whether the absolute value is less than given threshold, and
Determine that the temperature sensing package falls off and exports alarm signal when the absolute value is less than the given threshold；
The air conditioner indoor unit includes indoor fan, and the given threshold improves with the revolving speed of the indoor fan and reduced, and
It reduces and increases with the revolving speed of the indoor fan；
The given threshold improves with the operating frequency of compressor and is increased, and reduces and subtract with the operating frequency of the compressor
It is small；
The processor is used to close the air conditioner indoor unit after exporting the alarm signal third preset time.
2. air conditioner indoor unit as described in claim 1, which is characterized in that the processor in the air conditioner indoor unit for opening
After machine runs the first preset time, the absolute value is calculated.
3. air conditioner indoor unit as described in claim 1, which is characterized in that the processor is for judging that the absolute value is less than
Whether the given threshold continues the second preset time, and is less than the given threshold in the absolute value and continues described second in advance
If exporting the alarm signal after the time.
4. air conditioner indoor unit as described in claim 1, which is characterized in that the air conditioner indoor unit includes alarm unit, described
Alarm unit is used for according to the alarm signal sending sound and/or light warning message.
5. a kind of temperature-sensitive packet inspection method of air conditioner indoor unit, which comprises the following steps:
S1 detects indoor environment temperature and acquires the temperature that temperature sensing package detects；
S2 calculates the absolute value of the difference for the temperature that the indoor environment temperature is detected with the temperature sensing package；
S3, judges whether the absolute value is less than given threshold, if so, entering step S4；If it is not, returning to the step S1；And
S4 determines that the temperature sensing package falls off from the coil pipe of indoor heat exchanger and exports alarm signal；
The air conditioner indoor unit includes indoor fan, and the given threshold improves with the revolving speed of the indoor fan and reduced, and
It reduces and increases with the revolving speed of the indoor fan；
The given threshold improves with the operating frequency of compressor and is increased, and reduces and subtract with the operating frequency of the compressor
It is small；
S6 closes the air conditioner indoor unit after exporting the alarm signal third preset time.
6. the temperature-sensitive packet inspection method of air conditioner indoor unit as claimed in claim 5, which is characterized in that before the step S1,
The temperature-sensitive packet inspection method of the air conditioner indoor unit comprising steps of
S01, air conditioner indoor unit booting first preset time of operation.
7. the temperature-sensitive packet inspection method of air conditioner indoor unit as claimed in claim 5, which is characterized in that the step S4 includes:
Judge that the absolute value is less than whether the given threshold continues the second preset time, if so, determining that the temperature sensing package is de-
It falls and exports the alarm signal, if it is not, continuing the step S4.
8. the temperature-sensitive packet inspection method of air conditioner indoor unit as claimed in claim 5, which is characterized in that the air conditioner indoor unit
Temperature-sensitive packet inspection method further comprises the steps of:
S5, according to the alarm signal sending sound and/or light warning message.
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| CN106765892B (en) * | 2016-11-29 | 2019-07-26 | 广东美的暖通设备有限公司 | Multi-line system and its outdoor heat exchanger temperature-sensitive packet inspection method and device |
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| CN110173820B (en) * | 2019-05-21 | 2020-11-10 | 四川虹美智能科技有限公司 | Air conditioner defrosting control method and device |
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| CN113915729B (en) * | 2020-07-08 | 2023-03-07 | 广东美的制冷设备有限公司 | Air conditioner, abnormality detection method and device for temperature sensor of air conditioner, and storage medium |
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| CN113864998B (en) * | 2021-09-14 | 2022-11-22 | 珠海格力电器股份有限公司 | Control method and device of air conditioner detection equipment, storage medium and electronic equipment |
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