CN111649455A

CN111649455A - Air conditioner and control method thereof

Info

Publication number: CN111649455A
Application number: CN202010522895.0A
Authority: CN
Inventors: 李云蹊; 郝玉密; 刘杰
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Shandong Air Conditioning Co Ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-09-11

Abstract

The invention provides an air conditioner and a control method thereof, and belongs to the technical field of air conditioners. The air conditioner comprises an ion module, a control module and a control module, wherein the ion module is used for releasing ions, and the ions are sent into an indoor space along with air blown out by the air conditioner to purify indoor air; a humidifier for increasing humidity of the indoor space; and the controller is used for receiving an instruction of starting an ion purification function, acquiring the humidity of the indoor air, controlling the humidifier to work according to the humidity and starting the ion module. The control method of the air conditioner comprises the steps of receiving an instruction of starting an ion purification function, obtaining the humidity of indoor air, controlling the humidifier to work according to the humidity and starting the ion module. The invention can improve the ion propagation distance, the duration time and the ion concentration and improve the ion purification efficiency of the air conditioner.

Description

Air conditioner and control method thereof

Technical Field

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner and a control method thereof.

Background

In the related art, ion modules are mounted in part of air conditioners and purifiers to realize the purification function of indoor air. Including, for example, a point discharge negative ion module, a flat panel high voltage discharge plasma module, etc. These techniques all create a purifying effect on the whole space by ionizing air at high pressure and blowing the ions into the indoor space with the wind. Generally, the ion purification technology can effectively kill microorganisms due to high activity, can purify particles by adsorbing dust and settling due to electrification, can oxidize gaseous pollutants due to high activity, and is a comprehensive air purification method. Meanwhile, the negative ions are also called as 'vitamins' of the air, so that the air freshness is improved, and the air conditioner is beneficial to human health.

Research shows that the ions ionized under high pressure under different humidity have different types, mainly including O- · (H2O) n, O2- · (H2O) n, OH- · (H2O) n, O2H- · (H2O) n, O3- · (H2O) n, etc., wherein the hydration degree n is positively correlated with the humidity. Since the ion propagation distance, the ion propagation duration and the finally achievable anion concentration are different due to the difference of the hydration degree, the increase of the humidity is helpful to increase the ion propagation distance, the ion propagation duration and the finally achievable anion concentration, thereby finally improving the ion purification performance and the refreshing effect. Therefore, it is very important to improve the outlet air humidity under the anion purification function.

However, the air purification method in the related art does not sufficiently consider the influence of humidity on the ion purification effect, so that the ions do not perform the sufficient purification effect.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first objective of the present invention is to provide an air conditioner, which can increase the ion propagation distance, the duration time and the ion concentration, and improve the ion purification efficiency of the air conditioner.

The second objective of the present invention is to provide a control method of an air conditioner.

According to an embodiment of the present disclosure, an air conditioner includes: the ion module is used for releasing ions, and the ions are sent into the indoor space along with the air blown out by the air conditioner to purify the indoor air; a humidifier for increasing humidity of the indoor space; and the controller is used for receiving an instruction of starting an ion purification function, acquiring the humidity of the indoor air, controlling the humidifier to work according to the humidity and starting the ion module.

According to the embodiment of the disclosure, the controller is specifically configured to acquire current ambient humidity R and saturation humidity Rth at the current ambient temperature, determine whether R is smaller than Rth, if not, directly start the ion module, otherwise, determine a humidity range section to which a humidity difference Δ of Rth and R is R-Rth belongs, control the input power of the humidifier according to the humidity range section, and start the ion module.

According to an embodiment of the present disclosure, the controller is specifically configured to control the humidifier to be turned off when Δ ≦ the first humidity threshold;

when delta epsilon (a first humidity threshold value and a second humidity threshold value), controlling the input power of the humidifier to be first power;

when delta epsilon (a second humidity threshold value and a third humidity threshold value), controlling the input power of the humidifier to be a second power;

when the delta is larger than a third humidity threshold value, controlling the input power of the humidifier to be third power;

the first humidity threshold value is smaller than the second humidity threshold value and smaller than the third humidity threshold value, and the first power is smaller than the second power and smaller than the third power.

According to the embodiment of the disclosure, the controller is further configured to determine a water level in the humidifier before controlling the humidifier to work, judge that the humidifier is in a water shortage state when the water level is lower than a preset water level threshold, normally start the ion module, and send an error signal through a remote controller.

According to the embodiment of the disclosure, the air conditioner further comprises a memory, a temperature-saturation humidity table and a humidity sensor, wherein the temperature-saturation humidity table is used for storing saturation humidity values corresponding to different temperatures; the controller is specifically configured to: and acquiring a current temperature value and determining a saturation humidity value Rth at the current temperature according to the temperature-saturation humidity table.

According to the embodiment of the disclosure, the controller is further configured to receive an instruction to turn off the ion purification function, and delay the preset TIME to turn off the ion module according to the instruction to turn off the ion purification function.

The control method of the air conditioner comprises the steps of receiving an instruction of starting an ion purification function, obtaining the humidity of indoor air, controlling the humidifier to work according to the humidity and starting the ion module.

According to the embodiment of the present disclosure, the acquiring humidity of indoor air, controlling the humidifier to work and starting the ion module according to the humidity includes: and acquiring current environment humidity R and saturation humidity Rth at the current environment temperature, judging whether R is smaller than Rth, if not, directly starting the ion module, otherwise, determining a humidity range interval to which the humidity difference delta between Rth and R is equal to R-Rth, controlling the input power of the humidifier according to the humidity range interval, and starting the ion module.

According to an embodiment of the present disclosure, the controlling the input power of the humidifier according to the humidity range interval includes: when the delta is less than or equal to the first humidity threshold value, controlling the humidifier to be closed;

when delta epsilon (the first humidity threshold value and the second humidity threshold value), controlling the input power of the humidifier to be the first power;

when the delta is larger than the third humidity threshold value, controlling the input power of the humidifier to be third power;

According to the embodiment of the disclosure, before the humidifier is controlled to work, the water level in the humidifier is determined, when the water level is lower than a preset water level threshold value, the humidifier is judged to be lack of water, the ion module is normally started, and an error signal is sent through the remote controller.

According to an embodiment of the present disclosure, the acquiring the saturation humidity Rth at the current ambient temperature includes: obtaining the current temperature value and according to the prestored temperature value

And determining a saturation humidity value Rth at the current temperature by using a temperature-saturation humidity table, wherein the temperature-saturation humidity table comprises corresponding saturation humidity values at different temperatures.

According to the embodiment of the disclosure, the method further comprises the steps of receiving an instruction for closing the ion purification function, and delaying preset TIME to close the ion module according to the instruction for closing the ion purification function.

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 block schematic diagram of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of controlling a humidifier and an ion module according to a humidity differential according to one embodiment of the present disclosure;

fig. 3 is a flowchart of a control method of an air conditioner according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in the embodiments do not limit the scope of the present invention unless specifically stated otherwise. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

Through research, when the humidity of air is less than 60%, the influence of humidity change on ion concentration change is small; when the air humidity is more than 60%, the ion concentration can be obviously improved by increasing the air humidity; the typical indoor temperature range has little effect on ion concentration compared to humidity and is ignored in the present invention.

Therefore, when the ion module works, the humidifier is used for improving the air humidity, and the sterilization and disinfection effects of the ion module can be improved. Based on the theory, the ion module is started to work, and meanwhile the opening time of the humidifier is determined by monitoring the air humidity, so that the ion concentration in the air is improved, and the effect of purifying the air by ions is improved.

Fig. 1 is a block schematic diagram of an air conditioner according to an embodiment of the present disclosure. As shown in fig. 1, the air conditioner includes: ion module, humidifier and controller.

The humidifier can be arranged in the air conditioner and used for improving the humidity of air, the ion module can be an anion module or a plasma module and can be arranged at an air outlet of the air conditioner, ions released by the ion module enter an indoor space along with the air outlet of the air conditioner, microorganisms in the air can be killed, dust can be adsorbed to settle particles, and the indoor air is comprehensively purified. The controller can control the starting and stopping of the humidifier, the input power, the starting and stopping of the ion module and the like. In the prior art, the humidifier and the ion module provided on part of the air conditioner can implement the invention, and the structures of the humidifier and the ion module are not described again.

In the embodiment of the air conditioner disclosed by the disclosure, the air conditioner is used for receiving an instruction of an ion purification function, acquiring the humidity of indoor air, controlling the humidifier to work according to the humidity and starting the ion module.

Specifically, when a user sends an ion purification instruction through a remote controller, a line controller, voice or an air conditioner display panel, the controller receives the instruction, the humidity of the current air is acquired in a manner of real-time acquisition through a humidity sensor, and the like, then the humidifier is controlled to be started, closed, input power and the like according to the humidity, and meanwhile or later, an ion module is started, so that the humidity of the air is improved by the operation of the humidifier, the improvement of the humidity is beneficial to the improvement of ion propagation distance, duration and the concentration of ions in the air, and finally the ion purification performance and the refreshing effect are improved.

Therefore, the air conditioner provided by the embodiment of the invention improves the ion purification effect by improving the air humidity during ion purification.

In addition, when the humidifier promotes the environment humidity, a large amount of condensed water can be generated after the air humidity is saturated, in order to prevent excessive condensed water, the current air humidity and the saturation humidity need to be monitored in real time, the opening time of the humidifier is determined according to the humidity difference value of the current air humidity and the saturation humidity, the air humidity saturation is ensured, and the generation of condensed water due to the humidification supersaturation is prevented.

Therefore, in some embodiments of the present disclosure, mapping tables of saturation humidity values corresponding to different temperatures may be stored in advance, and for convenience of description, the mapping tables are referred to as a temperature-saturation humidity table; the controller needs to obtain the temperature and humidity of the current environment, obtains the corresponding saturation humidity Rth at the current temperature by checking a temperature-saturation humidity table, judges whether R is greater than Rth or not, if so, indicates that the current air humidity is not saturated, and can start the humidifier to improve the humidity of the air so as to improve the ion concentration in the air and achieve a better air purification effect; if R equals Rth, show that current air humidity is saturated, need not restart the humidifier to avoid the humidification supersaturation to produce the comdenstion water, can directly open ion module.

Because the air humidity can change in real time, the distance degree from the current air humidity R to the saturation humidity Rth is different, and the degree of air humidification required to be performed is also different.

Therefore, the controller of the air conditioner can also control the input power of the humidifier by changing the humidity difference delta between the current air humidity R and the saturation humidity Rth into R-Rth, so that the humidifier is controlled to be started with smaller input power when the humidity difference delta is smaller, and the humidifier is controlled to be started with larger input power when the humidity difference delta is larger.

Specifically, the embodiment of the present disclosure may establish a mapping relationship between a humidity range interval and the input power of the humidifier in advance, and after acquiring the humidity difference Δ, the humidity range interval in which the humidity difference Δ is located may be known, and the input power of the humidifier may be determined through the mapping relationship.

In order to further understand how to control the input power of the humidifier according to the humidity range interval where the humidity difference Δ is located in the embodiments of the present disclosure, a specific embodiment is described below.

In a particular embodiment of the disclosure, the controller is specifically configured to: and when the humidity difference delta is larger than the third humidity threshold, the input power of the humidifier is controlled to be the third power, and when the humidity difference delta is smaller than or equal to the first humidity threshold, the humidifier is controlled to be closed.

Wherein the first humidity threshold value is less than the second humidity threshold value and less than the third humidity threshold value, and the first power is less than the second power and less than the third power.

For example, the humidity difference Δ is set to three levels, corresponding to three gears of the humidifier, respectively, that is, three stages

Humidifier gear	Humidity difference △ range	Controlling operation
			Low gear	5％＜△≤10％	The PWM of the humidifier is 30 percent
Middle gear	10％＜△≤15％	The PWM of the humidifier is 60 percent
			High-grade	△＞15	The PWM of the humidifier is 90 percent
Close off	△≤5％	Humidifier off

The first humidity threshold is 5%, the second humidity threshold is 10%, the third humidity threshold is 15%, the humidity range interval includes LS ═ 5%, 10% >, LM ═ 10%, 15% >, LL ═ 15%, Rth ═ LE ═ 0, 5% >, when Δ ∈ LS, the humidifier operates at the first low power level, when Δ ∈ LM, the humidifier operates at the second medium power level, when Δ ∈ LL, the humidifier operates at the third high power level, when Δ ∈ LE, the humidifier is turned off.

In the working process of the air conditioner, the phenomenon of water shortage in the humidifier also exists, therefore, in some embodiments of the air conditioner disclosed by the disclosure, before the humidifier is controlled to work, the water level WL in the humidifier is determined, when the water level WL is lower than the preset water level threshold Wset, the humidifier is judged to be in water shortage, the ion module is normally started, and an error signal is sent through the remote controller.

More specifically, when WL > Wset is not established, the humidifier is judged to be lack of water, the ion module is normally started, and an error signal is sent through the remote controller;

when the delta belongs to LS and WL is more than Wset, controlling the humidifier to start at a low gear;

when the delta belongs to the LM and the WL is more than the Wset, controlling the middle gear of the humidifier to start;

and when the delta epsilon LL and the WL > Wset are satisfied, controlling the high-grade starting of the humidifier.

According to one embodiment of the disclosure, the controller is further configured to control the ion module to delay TIME control when receiving an instruction to turn off the ion purification function, for example, TIME is set to 1s for increasing control accuracy since a humidity delay variation is small.

Fig. 2 is a flowchart of a control method of an air conditioner according to an embodiment of the present disclosure.

In this embodiment, the control method of the air conditioner is suitable for the air conditioner described above, and includes the following steps: and receiving an instruction for starting the ion purification function, acquiring the humidity of the indoor air, controlling the humidifier to work according to the humidity and starting the ion module.

The following details the control method of the air conditioner with reference to fig. 2:

according to an embodiment of the present disclosure, acquiring humidity of indoor air, controlling a humidifier to operate and starting an ion module according to the humidity, includes: acquiring current environment humidity R and saturation humidity Rth under current environment temperature T, judging whether R is larger than Rth, if not, directly starting the ion module, if so, determining a humidity range to which a humidity difference delta is R-Rth, controlling the input power of the humidifier according to the humidity range and starting the ion module.

According to one embodiment of the present disclosure, controlling input power to a humidifier according to a humidity range includes:

when the humidity difference delta belongs to LS, controlling the low-grade starting of the humidifier;

when the humidity difference delta belongs to the LM, controlling the middle gear of the humidifier to start;

when the humidity difference delta belongs to LL, controlling the high-grade starting of the humidifier;

when the humidity difference delta belongs to LE, controlling the humidifier to be closed;

wherein LS ═ is (first humidity threshold, second humidity threshold), LM ═ is (second humidity threshold, third humidity threshold), LL ═ is (third humidity threshold, Rth) LE ═ is (0, first humidity threshold), first humidity threshold < second humidity threshold < third humidity threshold.

According to one embodiment of the disclosure, before the humidifier is controlled to work, the water level WL in the humidifier is determined, when the water level WL is lower than a preset water level threshold Wset, the humidifier is judged to be lack of water, the ion module is normally started, and an error signal is sent through a remote controller.

Before the humidifier is controlled to be started, a liquid level detection step is added, whether WL > Wset is established or not is judged, then the humidifier is started, if WL > Wset is established, the humidifier is indicated to have water and can be started normally, if WL > Wset is not established, the humidifier is indicated to be lack of water, the ion module is started normally, and an error signal is sent through a remote controller.

According to one embodiment of the disclosure, the method further comprises receiving an instruction for turning off the ion purification function, and delaying the preset TIME to turn off the ion module according to the instruction for turning off the ion purification function.

Therefore, the control method of the air conditioner provided by the embodiment of the invention improves the ion purification effect by improving the air humidity during ion purification.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An air conditioner, comprising:

the ion module is used for releasing ions, and the ions are sent into the indoor space along with the air blown out by the air conditioner to purify the indoor air;

a humidifier for increasing humidity of the indoor space;

and the controller is used for receiving an instruction of starting an ion purification function, acquiring the humidity of the indoor air, controlling the humidifier to work according to the humidity and starting the ion module.

2. The air conditioner of claim 1, wherein the controller is specifically configured to:

acquiring current environment humidity R and saturation humidity Rth at the current environment temperature, judging whether R is smaller than Rth, if not, directly starting the ion module, otherwise, determining a humidity range interval to which a humidity difference delta between Rth and R is equal to R-Rth, and controlling the input power of the humidifier according to the humidity range interval.

3. The air conditioner of claim 2, wherein the controller is specifically configured to:

when the delta is less than or equal to the first humidity threshold value, controlling the humidifier to be closed;

4. The air conditioner of claim 1, wherein the controller is further configured to:

before the humidifier is controlled to be started, the water level in the humidifier is determined, when the water level is lower than a preset water level threshold value, the humidifier is judged to be lack of water, the ion module is normally started, and an error signal is sent through a remote controller.

5. The air conditioner according to claim 2, further comprising:

the memorizer stores a temperature-saturation humidity table of corresponding saturation humidity values at different temperatures;

the controller is specifically configured to: and acquiring a current temperature value and determining a saturation humidity value Rth at the current temperature according to the temperature-saturation humidity table.

6. The air conditioner of claim 1, wherein the controller is further configured to:

and receiving an instruction for closing the ion purification function, and delaying preset TIME to close the ion module according to the instruction for closing the ion purification function.

7. A control method of an air conditioner, which is applied to the air conditioner according to any one of claims 1 to 6, the control method comprising:

and receiving an instruction for starting the ion purification function, acquiring the humidity of the indoor air, controlling the humidifier to work according to the humidity and starting the ion module.

8. The control method of claim 7, wherein the obtaining humidity of the indoor air, controlling the humidifier to operate and activating the ion module according to the humidity comprises:

and acquiring current environment humidity R and saturation humidity Rth at the current environment temperature, judging whether R is smaller than Rth, if not, directly starting the ion module, otherwise, determining a humidity range interval to which the humidity difference delta between Rth and R is equal to R-Rth, controlling the input power of the humidifier according to the humidity range interval, and starting the ion module.

9. The control method according to claim 8, wherein the controlling the input power of the humidifier according to the humidity range section comprises:

10. The control method according to claim 8, wherein the acquiring the saturation humidity Rth at the current ambient temperature includes:

and acquiring a current temperature value and determining a saturation humidity value Rth at the current temperature according to a pre-stored temperature-saturation humidity table, wherein the temperature-saturation humidity table comprises corresponding saturation humidity values at different temperatures.

11. The control method of claim 7, wherein before controlling the humidifier to work, a water level in the humidifier is determined, when the water level is lower than a preset water level threshold, the humidifier is judged to be lack of water, the ion module is normally started, and an error signal is sent through a remote controller.

12. The control method of claim 7, further comprising receiving an instruction to turn off an ion purification function, and delaying the turning off of the ion module for a preset TIME according to the instruction to turn off the ion purification function.