CN112628939A - Shared air conditioner anti-freezing protection control method and air conditioner - Google Patents
Shared air conditioner anti-freezing protection control method and air conditioner Download PDFInfo
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- CN112628939A CN112628939A CN202011449112.7A CN202011449112A CN112628939A CN 112628939 A CN112628939 A CN 112628939A CN 202011449112 A CN202011449112 A CN 202011449112A CN 112628939 A CN112628939 A CN 112628939A
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- air conditioner
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- temperature threshold
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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
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a shared air conditioner anti-freezing protection control method and an air conditioner in the technical field of shared air conditioner monitoring, and aims to solve the technical problems that in the prior art, due to the fact that air conditioners are frequently started and closed due to anti-freezing protection of the air conditioners, circuit loads are increased, air conditioners are prone to being damaged, and environmental protection and energy conservation are not facilitated. The method comprises the following steps: judging the operation mode of the shared air conditioner, and extracting the ambient temperature; if the judged operation mode is a refrigeration mode or a dehumidification mode, comparing the ambient temperature with a preset first temperature threshold value; and if the ambient temperature is lower than the first temperature threshold value, reducing the running power of the shared air conditioner.
Description
Technical Field
The invention relates to a shared air conditioner anti-freezing protection control method and an air conditioner, and belongs to the technical field of shared air conditioner monitoring.
Background
The air conditioner freezing prevention protection is a function of protecting the air conditioner from being damaged. When the air conditioner is in a low-temperature state for refrigerating operation, if the indoor temperature is lower than 0 ℃, the surface of the indoor unit can be frosted, and if the air conditioner continues to refrigerate and operate, the indoor unit can be damaged. The principle of the anti-freezing protection of the air conditioner is that under the working condition of refrigeration or dehumidification, a temperature sensing sleeve welded on an evaporator of an indoor unit is used for detecting the indoor temperature, when the indoor temperature is close to 0 ℃, a computer board in the air conditioner sends a command to stop the operation of the outdoor unit, and after the temperature is recovered, the air conditioner starts to operate again.
The air conditioner anti-freezing protection plays a positive role in protecting the air conditioner from being damaged, but the air conditioner anti-freezing protection mechanism is that the outdoor unit is directly shut down when the indoor temperature reaches the critical temperature close to 0 ℃, and the air conditioner is restarted when the indoor temperature is recovered to the critical temperature, so that the air conditioner is frequently started and shut down, the circuit load is greatly increased, the air conditioner is easily damaged, and the environment-friendly energy conservation is not facilitated.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a shared air conditioner anti-freezing protection control method and an air conditioner, so as to solve the technical problems that the air conditioner is frequently started and closed due to the anti-freezing protection of the air conditioner, the circuit load is further increased, the air conditioner is easily damaged, and the environment-friendly and energy-saving effects are not facilitated in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a shared air conditioner anti-freezing protection control method comprises the following steps:
judging the operation mode of the shared air conditioner, and extracting the ambient temperature;
if the judged operation mode is a refrigeration mode or a dehumidification mode, comparing the ambient temperature with a preset first temperature threshold value;
and if the ambient temperature is lower than the first temperature threshold value, reducing the running power of the shared air conditioner.
Further, reducing the operating power of the shared air conditioner includes:
calculating the difference between the first temperature threshold and the ambient temperature;
and reducing the operation power of the shared air conditioner in proportion to the difference value.
Further, after reducing the operation power of the shared air conditioner, the method further comprises the following steps:
comparing the ambient temperature with a preset second temperature threshold, wherein the second temperature threshold is lower than the first temperature threshold;
and if the ambient temperature is lower than the second temperature threshold value, closing the outdoor unit of the shared air conditioner.
Further, after the outdoor unit of the shared air conditioner is closed, the method further comprises the following steps:
comparing the ambient temperature with a preset first temperature threshold;
and if the ambient temperature is not lower than the first temperature threshold value, starting the outdoor unit of the shared air conditioner.
Further, after the outdoor unit of the shared air conditioner is started, the method further includes:
extracting the time interval between the closing and the starting of the outdoor unit;
comparing the interval duration with a preset interval duration threshold;
and if the interval duration is shorter than the interval duration threshold, sending an alarm signal to the enterprise terminal or/and the client terminal.
Further, the value range of the first temperature threshold value is 5-7 ℃, and the value range of the second temperature threshold value is 1-4 ℃.
Further, the value range of the interval duration threshold includes 10-30 min.
In order to achieve the above object, the present invention also provides an air conditioner, comprising: the outdoor unit comprises a main controller and a temperature sensor, wherein the main controller is electrically connected with the outdoor unit, and the main controller is preset with a first temperature threshold and a second temperature threshold;
the temperature sensor is characterized in that: for extracting the ambient temperature;
the main controller: the system comprises a controller, a first temperature threshold value, a second temperature threshold value, a first temperature threshold value, a difference value, a second temperature threshold value and a third temperature threshold value, wherein the controller is used for judging the operation mode of the shared air conditioner, comparing the ambient temperature with a preset first temperature threshold value if the judged operation mode is a refrigeration mode or a dehumidification mode, solving the difference value between the first temperature threshold value and the ambient temperature if the ambient temperature is lower than the first temperature threshold value, reducing the operation power of the shared air conditioner in proportion to the difference value, comparing the ambient temperature with a preset second temperature threshold value, closing the outdoor unit of the shared air conditioner if the ambient temperature is lower than the second temperature threshold value, and starting the outdoor unit of the shared air conditioner if the ambient temperature is not lower than.
The system further comprises a timer and a communication module which are electrically connected with the main controller, and the main controller is also preset with an interval duration threshold;
the timer is used for: the time interval for extracting the closing and starting of the outdoor unit;
the main controller: and the communication module is also used for comparing the interval duration with a preset interval duration threshold, and if the interval duration is shorter than the interval duration threshold, sending an alarm signal to the enterprise terminal or/and the client terminal through the communication module.
Compared with the prior art, the invention has the following beneficial effects: the method comprises the steps that parameters such as a first temperature threshold, a second temperature threshold, an interval duration threshold and the like are preset in a main controller of the air conditioner, extracted ambient temperature is compared with the first temperature threshold and the second temperature threshold respectively, the air conditioner continuously refrigerates, and when the ambient temperature is smaller than the first temperature threshold, the main controller sends a control instruction for reducing the running power of the air conditioner to slow down the speed of the reduction of the ambient temperature and play a role in saving energy consumption; when the ambient temperature is further reduced to the second temperature threshold value, the ambient temperature is close to 0 ℃ at the moment, and the main controller sends out a control instruction for closing the air conditioner if the ambient temperature is close to 0 ℃, so that the indoor unit is prevented from being damaged due to surface frosting. Compared with the prior art, the method and the air conditioner can obviously optimize the output power of refrigeration operation in the low-temperature state, delay temperature drop in the low-temperature state and avoid repeated starting at the critical temperature by setting two temperature threshold values, and play positive roles in prolonging the service life of the air conditioner and reducing the energy consumption of the air conditioner. When the air conditioner is frequently started, the alarm signal can be sent to the enterprise end or/and the client end in time, so that the technical state can be monitored in real time.
Drawings
Fig. 1 is a schematic diagram of a connection structure of an embodiment of the system of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention aims to provide a shared air conditioner anti-freezing protection control method and an air conditioner, and aims to avoid frequent starting and closing of the air conditioner due to the anti-freezing protection of the air conditioner, and timely send alarm information to an enterprise end and a client when the air conditioner is frequently started.
The specific embodiment of the invention provides an air conditioner which is a shared air conditioner, and by adopting new technical means such as the Internet of things and big data, an enterprise end can monitor the use duration and other conditions of a user and has the functions of abnormity reminding and fault early warning, and once the shared air conditioner of the user fails, an APP can timely push corresponding information to the user.
As shown in fig. 1, the schematic view of a connection structure of an embodiment of the system of the present invention includes a main controller electrically connected to an outdoor unit, the main controller is electrically connected to a temperature sensor, a timer and a communication module, the main controller is preset with a first temperature threshold, a second temperature threshold and an interval duration threshold, wherein the second temperature threshold is smaller than the first temperature threshold, a value range of the first temperature threshold is generally 5 to 7 ℃, a value range of the second temperature threshold is generally 1 to 4 ℃, and a value range of the interval duration threshold is generally 10 to 30 min. In this embodiment, the first temperature threshold is set to 6 ℃, the second temperature threshold is set to 2 ℃, and the interval duration threshold is set to 15 min.
A temperature sensor: the temperature sensor is used for extracting the ambient temperature of the shared air conditioner and can directly adopt a temperature sensing sleeve welded on an indoor unit evaporator.
A main controller: the following functions are mainly realized: (1) determining the operation modes (cooling, heating and dehumidifying) of the shared air conditioner; (2) if the judged operation mode is a refrigeration or dehumidification mode, comparing the acquired environmental temperature with a preset first temperature threshold (6 ℃); (3) if the compared ambient temperature is lower than the first temperature threshold, the difference value between the first temperature threshold and the ambient temperature is obtained, and the running power of the shared air conditioner is reduced in direct proportion to the difference value, so that the refrigerating or dehumidifying power of the air conditioner is ensured to be smaller and smaller along with the reduction of the ambient temperature, the energy consumption of the air conditioner is reduced, and the purpose of green and energy saving is achieved; (4) then, comparing the ambient temperature with a preset second temperature threshold (2 ℃), if the ambient temperature is lower than the second temperature threshold, closing an outdoor unit of the shared air conditioner to ensure that the indoor temperature is always higher than 0 ℃, and avoiding the indoor unit from being damaged due to surface frosting; (5) and (3) with the closing of the air conditioner, the indoor temperature is in a gradual rising trend, the main controller compares the collected ambient temperature with a preset first temperature threshold (6 ℃), and if the ambient temperature is not lower than the first temperature threshold, the outdoor unit of the shared air conditioner is started to continue refrigerating or dehumidifying so as to ensure that the ambient temperature is always maintained at a relatively low level.
A timer: the time interval for extracting the closing and starting of the outdoor unit is transmitted to the main controller.
A communication module: the communication module can adopt a 4G communication chip and adopts the technology of Internet of things to keep real-time communication with the enterprise end and the client. The interval duration extracted by the timer is compared with a preset interval duration threshold (15 min) by the main controller, if the interval duration is shorter than the interval duration threshold, the main controller sends an alarm signal to the enterprise terminal or/and the client terminal through the communication module to remind that the shared air conditioner is frequently started, the operation mode needs to be changed or the correlation coefficients such as the first temperature threshold, the second temperature threshold, the interval duration threshold and the like need to be reset, and the shared air conditioner is prevented from being damaged due to frequent starting and closing.
The specific implementation mode of the invention also provides a shared air conditioner anti-freezing protection control method, which is realized based on the air conditioner and comprises the following steps:
step one, the main controller judges the operation mode of the shared air conditioner and extracts the ambient temperature of the shared air conditioner through a temperature sensor. The main controller is preset with a first temperature threshold, a second temperature threshold and an interval duration threshold, wherein the second temperature threshold is smaller than the first temperature threshold, the value range of the first temperature threshold is generally 5-7 ℃, the value range of the second temperature threshold is generally 1-4 ℃, and the value range of the interval duration threshold is generally 10-30 min. In this embodiment, the first temperature threshold is set to 6 ℃, the second temperature threshold is set to 2 ℃, and the interval duration threshold is set to 15 min.
Step two, if the judged operation mode is a refrigeration or dehumidification mode, the main controller compares the ambient temperature with a preset first temperature threshold (6 ℃); if the ambient temperature is lower than the first temperature threshold, the main controller calculates the difference value between the first temperature threshold and the ambient temperature, sends a control instruction to the outdoor unit, and reduces the running power of the shared air conditioner in direct proportion to the difference value, so that the energy consumption of the air conditioner is reduced.
And step three, the main controller compares the ambient temperature with a preset second temperature threshold (2 ℃), the ambient temperature is lower and lower along with the continuous operation of the shared air conditioner, and when the ambient temperature is lower than the second temperature threshold, the main controller sends a control instruction to close the outdoor unit of the shared air conditioner so as to ensure that the indoor temperature is always higher than 0 ℃ and avoid the indoor unit from being damaged due to surface frosting.
And step four, the main controller compares the ambient temperature with a preset first temperature threshold (6 ℃), at the moment, the indoor temperature is in a gradual rising trend due to the closing of the air conditioner, and when the ambient temperature is not lower than the first temperature threshold, the main controller sends out a control instruction to restart the outdoor unit of the shared air conditioner to continue refrigerating or dehumidifying so as to ensure that the ambient temperature is always maintained at a relatively low level.
And step five, the main controller extracts the closing and starting interval duration of the outdoor unit through a timer, compares the interval duration with a preset interval duration threshold (15 min), and if the interval duration is shorter than the interval duration threshold, the main controller sends an alarm signal to an enterprise terminal or/and a client terminal through a communication module to remind that the shared air conditioner is frequently started, the operation mode needs to be changed or the correlation coefficients such as the first temperature threshold, the second temperature threshold, the interval duration threshold and the like are reset, so that the shared air conditioner is prevented from being damaged due to frequent starting and closing.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A shared air conditioner anti-freezing protection control method is characterized by comprising the following steps:
judging the operation mode of the shared air conditioner, and extracting the ambient temperature;
if the judged operation mode is a refrigeration mode or a dehumidification mode, comparing the ambient temperature with a preset first temperature threshold value;
and if the ambient temperature is lower than the first temperature threshold value, reducing the running power of the shared air conditioner.
2. The method as claimed in claim 1, wherein the reducing the operation power of the shared air conditioner comprises:
calculating the difference between the first temperature threshold and the ambient temperature;
and reducing the operation power of the shared air conditioner in proportion to the difference value.
3. The method as claimed in claim 1, further comprising, after reducing the operating power of the shared air conditioner:
comparing the ambient temperature with a preset second temperature threshold, wherein the second temperature threshold is lower than the first temperature threshold;
and if the ambient temperature is lower than the second temperature threshold value, closing the outdoor unit of the shared air conditioner.
4. The method as claimed in claim 3, further comprising, after the outdoor unit of the shared air conditioner is turned off:
comparing the ambient temperature with a preset first temperature threshold;
and if the ambient temperature is not lower than the first temperature threshold value, starting the outdoor unit of the shared air conditioner.
5. The method as claimed in claim 4, further comprising, after starting the outdoor unit of the shared air conditioner:
extracting the time interval between the closing and the starting of the outdoor unit;
comparing the interval duration with a preset interval duration threshold;
and if the interval duration is shorter than the interval duration threshold, sending an alarm signal to the enterprise terminal or/and the client terminal.
6. The shared air conditioner anti-freezing protection control method as claimed in claim 3, wherein the value range of the first temperature threshold value comprises 5-7 ℃, and the value range of the second temperature threshold value comprises 1-4 ℃.
7. The shared air conditioner anti-freezing protection control method as claimed in claim 5, wherein the interval duration threshold value ranges from 10 min to 30 min.
8. An air conditioner, comprising: the outdoor unit comprises a main controller and a temperature sensor, wherein the main controller is electrically connected with the outdoor unit, and the main controller is preset with a first temperature threshold and a second temperature threshold;
the temperature sensor is characterized in that: for extracting the ambient temperature;
the main controller: the system comprises a controller, a first temperature threshold value, a second temperature threshold value, a first temperature threshold value, a difference value, a second temperature threshold value and a third temperature threshold value, wherein the controller is used for judging the operation mode of the shared air conditioner, comparing the ambient temperature with a preset first temperature threshold value if the judged operation mode is a refrigeration mode or a dehumidification mode, solving the difference value between the first temperature threshold value and the ambient temperature if the ambient temperature is lower than the first temperature threshold value, reducing the operation power of the shared air conditioner in proportion to the difference value, comparing the ambient temperature with a preset second temperature threshold value, closing the outdoor unit of the shared air conditioner if the ambient temperature is lower than the second temperature threshold value, and starting the outdoor unit of the shared air conditioner if the ambient temperature is not lower than.
9. The air conditioner as claimed in claim 8, further comprising a timer and a communication module electrically connected to the main controller, wherein the main controller is further preset with an interval duration threshold;
the timer is used for: the time interval for extracting the closing and starting of the outdoor unit;
the main controller: and the communication module is also used for comparing the interval duration with a preset interval duration threshold, and if the interval duration is shorter than the interval duration threshold, sending an alarm signal to the enterprise terminal or/and the client terminal through the communication module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011449112.7A CN112628939A (en) | 2020-12-12 | 2020-12-12 | Shared air conditioner anti-freezing protection control method and air conditioner |
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| CN202011449112.7A CN112628939A (en) | 2020-12-12 | 2020-12-12 | Shared air conditioner anti-freezing protection control method and air conditioner |
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Cited By (1)
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Application publication date: 20210409 |