CN111140993A - Air conditioner heating and defrosting method and air conditioner using same - Google Patents
Air conditioner heating and defrosting method and air conditioner using same Download PDFInfo
- Publication number
- CN111140993A CN111140993A CN201811314652.7A CN201811314652A CN111140993A CN 111140993 A CN111140993 A CN 111140993A CN 201811314652 A CN201811314652 A CN 201811314652A CN 111140993 A CN111140993 A CN 111140993A
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- Prior art keywords
- air conditioner
- time
- defrosting
- condenser coil
- timer
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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
- F24F11/41—Defrosting; Preventing freezing
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, in particular to an air conditioner heating and defrosting method and an air conditioner using the same. The invention discloses an air conditioner, which comprises an indoor unit (1) and an outdoor unit (2), wherein the indoor unit (1) comprises an indoor heat exchanger (11) and an indoor fan (14); the outdoor unit (2) comprises a compressor (21), a silencer (29), a four-way valve (22), a condenser (23), an outdoor fan (25), a throttling mechanism (24), a condenser coil temperature sensor (28) and an outdoor unit controller (32), wherein the condenser coil temperature sensor (28) is used for monitoring the temperature of a condenser coil in real time and transmitting the monitored temperature value to the air conditioner controller in real time; the air conditioner controller is also provided with a timer, and the timer can count time or reset under the control of the air conditioner controller. The invention has the beneficial effects that: the defrosting method is determined according to the continuous operation time of the air conditioner, so that the problem that the air conditioner operates for a long time and defrosting is not clean can be avoided.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner heating and defrosting method and an air conditioner using the same.
Background
When the air conditioner operates in heating, when the condenser frosts but the defrosting condition is not achieved in a short time, or when the air conditioner operates in a low-temperature environment, namely below a certain temperature, the air conditioner does not defrost or only defrost for a long time, at the moment, because the condenser frosts thickly, the heat exchange effect of the condenser is poor, and people feel uncomfortable. For the prior art, a defrosting sensor is generally adopted for control, and when the defrosting sensor reaches a specified temperature value, the machine enters defrosting. At present, the longest defrosting time is fixed in a plurality of defrosting logics of the air conditioner, but under partial low-temperature working conditions, because the frosting time of a condenser is long, frost cannot be completely removed within the longest defrosting time, and the frost is accumulated more and more due to the long time, so that the using effect and the comfort of the air conditioner are influenced.
Disclosure of Invention
The invention aims to provide an air conditioner heating and defrosting method and an air conditioner using the same, so that a condenser can be defrosted cleanly when frosting is thick during long-time operation, and the comfort is improved.
Specifically, the invention is realized by the following technical scheme:
an air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises an indoor heat exchanger and an indoor fan; the outdoor unit comprises a compressor, a silencer, a four-way valve, a condenser, an outdoor fan, a throttling mechanism, a condenser coil temperature sensor and an outdoor unit controller, wherein the condenser coil temperature sensor is used for monitoring the temperature of a condenser coil in real time and transmitting the monitored temperature value to the air conditioner controller in real time; the air conditioner controller is also provided with a timer, and the timer can count time or reset under the control of the air conditioner controller.
An air conditioner heating defrosting method, using the air conditioner, the method comprising:
s1: the air conditioner heating operation is carried out for a preset time;
s2: determining the total time of the air conditioner running when the temperature value of the condenser coil is less than or equal to a first preset temperature value of the condenser coil;
s3: determining the defrosting time according to the total running time of the air conditioner, and defrosting by the air conditioner according to the defrosting time;
s4: and when the defrosting process is finished or the temperature value of the condenser coil is greater than or equal to a second preset temperature value of the condenser coil, the defrosting mode is exited.
Preferably, the S1 includes:
s11: starting the air conditioner for heating operation, and starting a timer for timing;
s12: and judging whether the timing time of the timer is greater than the preset time, if so, executing S2, and if not, continuing executing S12.
Preferably, the S2 includes:
s21: judging whether the temperature value of the condenser coil is smaller than or equal to a first preset temperature value of the condenser coil, if so, executing S22, otherwise, continuing to execute S21, and continuing to count time by the timer;
s22: the timer stops timing and saves the currently recorded time value.
Preferably, the S3 includes:
s31: the air conditioner controller reads the time value saved by the timer;
s32: resetting the timer;
s33: the air conditioner controller determines the defrosting time length according to the time value;
s34: the air conditioner enters a defrost mode.
Preferably, the S4 includes:
s41: the timer starts to time;
s42: judging whether the time value accumulated by the timer reaches the defrosting time length, if so, executing S43, and if not, continuing executing S42;
s43: the defrost mode is exited.
Preferably, in step S42, when the determination result is negative, the method further includes:
s421: and judging whether the temperature of the condenser coil is greater than or equal to a second preset temperature value of the condenser coil, if so, executing S43, and if not, executing S42.
Preferably, the preset time range is 40-180 min; the temperature value of the first preset condenser coil is in the range of 0 to-10 ℃; the range of the second preset condenser coil temperature value is 0-12 ℃.
Preferably, the defrosting time period can be calculated by a formula
B＝A*L(0<L＜1)
And determining, wherein B is defrosting time duration, A is air-conditioning heating time duration, and L is a preset proportionality constant.
An air conditioner using the air conditioner heating and defrosting method as set forth in any one of the above.
The invention has the beneficial effects that: the defrosting method is determined according to the continuous operation time of the air conditioner, so that the problem that the air conditioner operates for a long time and defrosting is not clean can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of an air conditioner according to the present invention;
FIG. 2 is a logic diagram of a heating and defrosting method for an air conditioner according to a first embodiment of the present invention;
FIG. 3 is a logic diagram of a heating and defrosting method for an air conditioner according to a second embodiment of the present invention;
FIG. 4 is a logic diagram of a heating and defrosting method for an air conditioner according to a third embodiment of the present invention;
FIG. 5 is a logic diagram of a heating and defrosting method for an air conditioner according to a fourth embodiment of the present invention;
FIG. 6 is a logic diagram of a heating and defrosting method for an air conditioner according to a fifth embodiment of the present invention;
fig. 7 is a logic diagram of a heating and defrosting method for an air conditioner according to a sixth embodiment of the present invention.
Description of the reference numerals
To further clarify the structure and connection between the various components of the present invention, the following reference numerals are given and described.
1. An indoor unit; 11. an indoor heat exchanger; 14. an indoor fan; 2. an outdoor unit; 21. a compressor; 22. a four-way valve; 23. a condenser; 24. a throttle mechanism; 25. an outdoor fan; 28. a condenser coil temperature sensor; 29. a silencer.
The technical scheme of the invention can be more clearly understood and explained by combining the embodiment of the invention through the reference sign description.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
The present invention will be described in detail below by way of examples.
An air conditioner, as shown in fig. 1, comprises an indoor unit 1 and an outdoor unit 2, wherein the indoor unit 1 comprises an indoor heat exchanger 11 and an indoor fan 14; the outdoor unit 2 includes a compressor 21, a muffler 29, a four-way valve 22, a condenser 23, an outdoor fan 25, a throttle mechanism 24, a condenser coil temperature sensor 28, and an outdoor unit controller 32, and the outdoor unit controller 2 is at least used for controlling the compressor to start or stop.
The user can control the opening and closing of different valve ports of the four-way valve 22 according to the requirement, and the air conditioner is selected to be in a refrigeration mode or a refrigeration mode. The condenser coil temperature sensor 28 is used to monitor the temperature of the condenser coil in real time and transmit the monitored temperature value to the air conditioner controller in real time.
The air conditioner controller is also provided with a timer, and the timer can count time or reset under the control of the air conditioner controller.
When the air conditioner is in the heating mode, the compressor 21 compresses the refrigerant inside the compressor to a high-temperature high-pressure gaseous state, the high-temperature high-pressure gaseous state sequentially flows through the muffler 29 and the indoor heat exchanger 11 to heat the air around the indoor heat exchanger 11, the indoor fan 14 blows the heated air to form hot air, the refrigerant becomes liquid with medium temperature and medium pressure after the heat exchange of the indoor heat exchanger 11, then the liquid refrigerant flows through the throttling mechanism 24 and the condenser 23, the liquid refrigerant is vaporized to absorb heat to become a gaseous state, a large amount of heat in the surrounding air is absorbed, the temperature around the condenser 23 is reduced, and the gaseous refrigerant enters the compressor 21.
An air conditioner heating defrosting method using the air conditioner comprises the following steps:
s1: and the air conditioner heats and operates for a preset time.
S2: and determining the total time of the air conditioner running when the temperature value of the condenser coil is less than or equal to the first preset temperature value of the condenser coil.
S3: and determining the defrosting time according to the total running time of the air conditioner, and defrosting by the air conditioner according to the defrosting time.
S4: and when the defrosting process is finished or the temperature value of the condenser coil is greater than or equal to a second preset temperature value of the condenser coil, the defrosting mode is exited.
Specifically, the S1 includes:
s11: and starting the air conditioner to perform heating operation, and starting a timer to time.
S12: and judging whether the timing time of the timer is greater than the preset time, if so, executing S2, and if not, continuing executing S12.
Specifically, the S2 includes:
s21: and judging whether the temperature value of the condenser coil is less than or equal to a first preset temperature value of the condenser coil, if so, executing S22, otherwise, continuing to execute S21, and continuing to count time by the timer.
S22: the timer stops timing and saves the currently recorded time value.
Specifically, the S3 includes:
s31: and the air conditioner controller reads the time value saved by the timer.
S32: the timer is cleared.
S33: and the air conditioner controller determines the defrosting time length according to the time value.
S34: the air conditioner enters a defrost mode.
Specifically, the S4 includes:
s41: the timer starts counting time.
S42: and judging whether the time value accumulated by the timer reaches the defrosting time length, if so, executing S43, and if not, continuing executing S42.
S43: the defrost mode is exited.
In another embodiment of the present invention, in step S42, when the determination result is no, the method further includes:
s421: and judging whether the temperature of the condenser coil is greater than or equal to a second preset temperature value of the condenser coil, if so, executing S43, and if not, executing S42.
Specifically, the preset time range is 40-180 min.
Specifically, the temperature value of the first preset condenser coil ranges from 0 ℃ to-10 ℃.
Specifically, the range of the second preset condenser coil temperature value is 0-12 ℃.
Specifically, the defrosting time can be calculated by a formula
B＝A*L(0<L＜1)
And determining, wherein B is a defrosting time period, a is an air-conditioning heating time period, that is, a time value saved when the timer stops timing in step S22, and L is a preset proportionality constant.
Specifically, the value of L is 0.2.
In the invention, the longest defrosting time is not a fixed value but determined according to the continuous operation time of the air conditioner, thereby avoiding the problem that the air conditioner is not clean in defrosting after long-time operation.
The invention also provides an air conditioner which uses any one of the air conditioner heating and defrosting methods.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An air conditioner is characterized by comprising an indoor unit (1) and an outdoor unit (2), wherein the indoor unit (1) comprises an indoor heat exchanger (11) and an indoor fan (14); the outdoor unit (2) comprises a compressor (21), a silencer (29), a four-way valve (22), a condenser (23), an outdoor fan (25), a throttling mechanism (24), a condenser coil temperature sensor (28) and an outdoor unit controller (32), wherein the condenser coil temperature sensor (28) is used for monitoring the temperature of a condenser coil in real time and transmitting the monitored temperature value to the air conditioner controller in real time; the air conditioner controller is also provided with a timer, and the timer can count time or reset under the control of the air conditioner controller.
2. A heating defrosting method of an air conditioner using the air conditioner of claim 1, wherein the method comprises:
s1: the air conditioner heating operation is carried out for a preset time;
s2: determining the total time of the air conditioner running when the temperature value of the condenser coil is less than or equal to a first preset temperature value of the condenser coil;
s3: determining the defrosting time according to the total running time of the air conditioner, and defrosting by the air conditioner according to the defrosting time;
s4: and exiting the defrosting mode when the defrosting process is finished or the temperature value of the condenser coil is greater than or equal to the second preset temperature value of the condenser coil.
3. The air conditioner heating defrosting method of claim 2, wherein the S1 includes:
s11: starting the air conditioner for heating operation, and starting a timer for timing;
s12: and judging whether the timing time of the timer is greater than the preset time, if so, executing S2, and if not, continuing executing S12.
4. The air conditioner heating defrosting method of claim 3, wherein the S2 includes:
s21: judging whether the temperature value of the condenser coil is smaller than or equal to a first preset temperature value of the condenser coil, if so, executing S22, otherwise, continuing to execute S21, and continuing to count time by the timer;
s22: the timer stops timing and saves the currently recorded time value.
5. The air conditioner heating defrosting method of claim 4, wherein the S3 includes:
s31: the air conditioner controller reads the time value saved by the timer;
s32: resetting the timer;
s33: the air conditioner controller determines the defrosting time length according to the time value;
s34: the air conditioner enters a defrost mode.
6. The air conditioner heating defrosting method of claim 4, wherein the S4 includes:
s41: the timer starts to time;
s42: judging whether the time value accumulated by the timer reaches the defrosting time length, if so, executing S43, and if not, continuing executing S42;
s43: the defrost mode is exited.
7. The air conditioner heating defrosting method of claim 6, wherein in step S42, when the determination result is NO, the method further comprises:
s421: and judging whether the temperature of the condenser coil is greater than or equal to a second preset temperature value of the condenser coil, if so, executing S43, and if not, executing S42.
8. The air conditioner heating defrosting method according to claim 7, wherein the preset time is in a range of 40-180 min; the temperature value of the first preset condenser coil is in the range of 0 to-10 ℃; the range of the second preset condenser coil temperature value is 0-12 ℃.
9. The air conditioner heating defrosting method according to claim 8, wherein the defrosting time period can be calculated by a formula
B＝A*L(0<L＜1)
And determining, wherein B is defrosting time duration, A is air-conditioning heating time duration, and L is a preset proportionality constant.
10. An air conditioner characterized by using the heating and defrosting method of the air conditioner as claimed in any one of claims 2 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811314652.7A CN111140993A (en) | 2018-11-06 | 2018-11-06 | Air conditioner heating and defrosting method and air conditioner using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811314652.7A CN111140993A (en) | 2018-11-06 | 2018-11-06 | Air conditioner heating and defrosting method and air conditioner using same |
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| CN111140993A true CN111140993A (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811314652.7A Pending CN111140993A (en) | 2018-11-06 | 2018-11-06 | Air conditioner heating and defrosting method and air conditioner using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178992A (en) * | 2020-09-15 | 2021-01-05 | 珠海格力电器股份有限公司 | Defrosting control method and device and heating unit |
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Application publication date: 20200512 |