CN108458408B - Air conditioner indoor unit with purification function and control method thereof - Google Patents

Air conditioner indoor unit with purification function and control method thereof Download PDF

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Publication number
CN108458408B
CN108458408B CN201810371231.1A CN201810371231A CN108458408B CN 108458408 B CN108458408 B CN 108458408B CN 201810371231 A CN201810371231 A CN 201810371231A CN 108458408 B CN108458408 B CN 108458408B
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China
Prior art keywords
air
mode
regulation mode
unit
temperature
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CN201810371231.1A
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CN108458408A (en
Inventor
周鹏飞
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Beijing Jinghai Technology Co ltd
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Beijing Jinghai Technology Co ltd
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Priority to CN201810371231.1A priority Critical patent/CN108458408B/en
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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The application relates to an air conditioner indoor unit with a purification function and a control method thereof, wherein the air conditioner indoor unit comprises a shell, the lower part of the shell is provided with an air return opening, the upper part of the shell is provided with an air supply opening, and the inside of the shell is sequentially provided with a fan, a humidifying unit and an evaporator from bottom to top; the air return opening is provided with an air return filtering unit, and the air supply opening is provided with an air supply filtering unit; an ultraviolet lamp is arranged on the inner wall of the shell and positioned between the evaporator and the air supply filtering unit; the return air filtering unit is used for performing first-stage filtering on air entering the air conditioner indoor unit from the return air inlet; the air supply filtering unit is used for performing second-stage filtering on the air before being sent out indoors after passing through the evaporator; the ultraviolet lamp is used for killing microorganisms intercepted by the air supply filtering unit. The application can carry out multistage purification on the air fed into the room, and secondary pollution is avoided.

Description

Air conditioner indoor unit with purification function and control method thereof
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to an air conditioner indoor unit with a purification function and a control method thereof.
Background
Air conditioning is generally only used for conditioning room temperature, however, with the increasing deterioration of air quality, dust and bacteria in indoor air are more and more increased, and the air quality degradation caused by indoor dust and bacteria propagation in the air conditioner brings great hidden trouble to physical and mental health of people. Therefore, an air conditioner capable of adjusting the room temperature and purifying the air is required to meet the demands of people for fresh air.
The inventors of the present application found during the development process that: in order to keep the interior of the air conditioner indoor unit clean and prevent dust in the air from entering the air duct, people usually arrange a filter screen at a return air inlet of the air conditioner indoor unit; however, during the use of the indoor unit of the air conditioner, a large amount of dust and bacteria accumulate on the filter screen, and if the filter screen is not replaced timely or the filter strength of the filter screen is insufficient, a large amount of bacteria, fungi and microorganisms can grow in the indoor unit of the air conditioner, so that secondary pollution is easily caused.
Disclosure of Invention
In order to overcome the problems existing in the related art to at least a certain extent, the application provides an air conditioner indoor unit with a purification function and a control method thereof.
According to a first aspect of an embodiment of the present application, the present application provides an indoor unit of an air conditioner with a purification function, which includes a casing, an air return opening is provided at a lower portion of the casing, an air supply opening is provided at an upper portion of the casing, and a fan, a humidifying unit and an evaporator are sequentially provided inside the casing from bottom to top; the air return port is provided with an air return filter unit, and the air supply port is provided with an air supply filter unit; an ultraviolet lamp is arranged on the inner wall of the shell and positioned between the evaporator and the air supply filtering unit; the return air filtering unit is used for performing first-stage filtering on air entering the air conditioner indoor unit from the return air inlet; the air supply filtering unit is used for performing second-stage filtering on air before the air passes through the evaporator and is sent indoors; the ultraviolet lamp is used for killing microorganisms intercepted by the air supply filtering unit.
Further, the air supply filtering unit is obliquely arranged in the space between the air supply port and the evaporator; the air supply filter unit comprises an air supply filter, a driving mechanism and a filter frame; the driving mechanism is in transmission connection with the air supply filter; the driving mechanism drives the air supply filter to move into the filter frame or withdraw from the filter frame; two opposite sides of the filter frame are provided with bypass valves for switching the temperature regulation mode, the purge regulation mode and the purge mode.
Further, the driving mechanism comprises rubber wheels and a motor, wherein the rubber wheels are fixedly arranged on two sides of the filter frame, and the two rubber wheels are oppositely clamped on two side surfaces of the air supply filter; the rubber wheel is connected with the motor through a driving shaft.
Further, the indoor unit of the air conditioner further comprises a controller connected with the motor, wherein one port of the filter frame is used as an inlet and an outlet of the air supply filter, and a position sensor is arranged at the opposite port of the filter frame; the position sensor is connected with the controller; and the controller controls the motor to work according to the position signal fed back by the position sensor.
Further, the air supply filter is accommodated by adopting an isolation bag; a circle of grooves are formed in the side wall of one port of the filter frame serving as an inlet and an outlet of the air supply filter; the mouth of the isolation bag is fixed in the groove.
Further, the humidifying unit comprises a water storage tank and an atomization vaporization assembly; the water storage tank is arranged at the bottom of the air conditioner indoor unit and adopts a drawing type structure; the atomization vaporization assembly is arranged at one end of the evaporator, and the water storage tank is connected with the atomization vaporization assembly.
Further, a fresh air inlet and a fresh air filtering unit are also arranged in the shell of the air conditioner indoor unit; the fresh air port is arranged at the lower part of the shell and is connected with a fresh air fan of the outdoor unit, and the fresh air filtering unit is arranged at the fresh air port; the fresh air filtering unit is used for filtering fresh air entering the air conditioner indoor unit.
Further, the shell adopts a cylindrical structure; the return air filtering unit adopts a cylindrical structure; the filtering level of the cylindrical structure is sequentially increased from outside to inside, an air channel is formed in the middle cavity of the cylindrical structure, and filtered wind enters the air inlet of the fan from the air channel; the fresh air filtering unit is arranged at the bottom of the cylindrical structure.
According to a second aspect of the embodiments of the present application, the present application further provides a control method of an air conditioner indoor unit with a purification function, including the following steps:
collecting indoor temperature and indoor particulate matter concentration;
judging whether the collected indoor temperature meets a temperature preset value or not, and judging whether the concentration of the particulate matters meets a particulate matter concentration preset value or not;
if the indoor temperature meets the preset temperature value and the concentration of the particulate matters does not meet the preset concentration value, entering a purification regulation mode; if the indoor temperature does not meet the preset temperature value and the concentration of the particulate matters meets the preset concentration value, entering a temperature regulation mode; if the indoor temperature does not meet the preset temperature value and the concentration of the particulate matters does not meet the preset concentration value, entering a temperature and purification combined regulation mode;
when the air quantity enters a purification regulation mode, the bypass valve is controlled to be closed, and the fan operates according to a gear corresponding to the air quantity obtained through analysis of the purification regulation mode; when the temperature regulation mode is entered, the bypass valve is controlled to be closed, and the purging mode is entered; when the temperature and purification combined regulation mode is entered, priorities of the purification regulation mode and the temperature regulation mode are judged. If the air volume obtained by analysis in the temperature regulation mode is larger than the air volume obtained by analysis in the purification regulation mode, the temperature regulation mode is prioritized, otherwise, the purification regulation mode is prioritized;
if the temperature regulation mode is prior, further judging whether the analyzed air quantity in the temperature regulation mode is larger than the air quantity of the maximum gear in the purification regulation mode; if yes, controlling to close the bypass valve and entering a purging mode; otherwise, controlling to close the bypass valve, and operating the indoor fan according to a fan gear corresponding to the air quantity obtained by analysis in the temperature regulation mode and corresponding to the air quantity in the purification regulation mode; and if the purification regulation mode is prior, controlling to close the bypass valve, and operating the indoor fan according to the fan gear in the mode corresponding to the analyzed air quantity in the purification regulation mode.
Further, the control process of the purging mode is as follows:
1) Judging whether the air quantity obtained by analysis in the temperature regulation mode is smaller than the air quantity of the lowest gear of the purging mode, if so, operating with the air quantity of the lowest gear of the purging mode, and executing the step 2); otherwise, operating with a gear corresponding to the air quantity in the purging mode corresponding to the air quantity obtained by analysis in the temperature regulation mode, and executing the step 3);
2) Judging whether the running time meets the current gear purging set time, if so, exiting a purging mode, opening a bypass valve, and running the fan according to the gear corresponding to the air quantity obtained by analysis in a temperature regulation mode; otherwise, the air quantity of the lowest gear in the purging mode is used for running again;
3) Judging whether the accumulated purge setting time corresponding to the accumulated purge air quantity is smaller than the accumulated time before the lifting gear analyzed in the temperature regulation mode, if so, opening a bypass valve, and exiting the purge mode; otherwise, the fan operates according to the gear corresponding to the air quantity in the purging mode corresponding to the air quantity obtained through analysis in the temperature regulation mode, the step 1) is returned until the bypass valve is opened, and the purging mode is exited.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects: according to the air return filter unit, the air return port is provided with the air return filter unit, so that dust in air can be effectively prevented from entering the air duct; an air supply filter unit is arranged at the air supply opening, so that microorganisms such as bacteria and viruses which are bred in the air and on the evaporator of the indoor unit can be effectively intercepted; set up ultraviolet lamp between air supply filter unit and evaporimeter, can kill microorganisms such as bacterium and virus under the interception, this application can carry out multistage purification to the air that sends into indoor, can avoid appearing secondary pollution.
According to the air supply filter, the driving mechanism and the filter frame are arranged, the air supply filter is driven by the driving mechanism to move into the filter frame or withdraw from the filter frame, the process of replacing the sub-efficient filter or the efficient filter can be simplified, and the air supply filter is convenient and practical.
This application is through accomodating the air supply filter in the isolation bag, makes things convenient for operating personnel to operate, makes the filter at the in-process of changing and operating personnel isolated, furthest protects operating personnel, has also avoided microorganism such as in-process bacterium or virus that the filter was changed to get into in the room simultaneously.
According to the control method of the air conditioner indoor unit with the purification function, the air conditioner indoor unit can achieve starting self-cleaning by setting the purging mode, and can be switched to the low-power consumption mode after the self-cleaning is completed, so that the energy consumption is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is one of internal construction diagrams of an air conditioner indoor unit with a purifying function according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating a structure of an air supply filtering unit in an air conditioning indoor unit with a purifying function according to an exemplary embodiment.
Fig. 3 is a schematic view showing an external structure of another indoor unit of an air conditioner with a purifying function according to an exemplary embodiment.
Fig. 4 is a schematic view illustrating an internal structure of another indoor unit of an air conditioner with a purifying function according to an exemplary embodiment.
Fig. 5 is a schematic view showing a structure of an air supply filtering unit in another indoor unit of an air conditioner with a purifying function according to an exemplary embodiment.
Fig. 6 is a flowchart illustrating a control method of an air conditioner indoor unit with a purification function according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.
Fig. 1 is one of structural diagrams of an indoor unit of an air conditioner with a purifying function according to an exemplary embodiment. As shown in fig. 1, the air conditioner indoor unit with the purification function comprises a shell 1, wherein an air return opening 2 is arranged at the lower part of the shell 1, an air supply opening 3 is arranged at the upper part of the shell 1, and a fan 4, a humidifying unit 5 and an evaporator 6 are sequentially arranged in the shell 1 from bottom to top. The return air inlet 2 is provided with a return air filtering unit 7, and the air supply inlet 3 is provided with an air supply filtering unit 8. An ultraviolet lamp 9 is provided on the inner wall of the housing 1 between the evaporator 6 and the blower filter unit 8. The return air filtering unit 7 is used for performing first-stage filtering on air entering the air conditioning indoor unit from the return air inlet 2. The air supply filtering unit 8 is used for performing second-stage filtration on air before being sent out indoors after passing through the evaporator 6, can effectively filter out microorganisms such as bacteria and viruses carried by the air after passing through the evaporator 6, can also filter out microorganisms such as bacteria and viruses carried by a humidifying water source of the humidifying unit 5, and can also perform effective interception filtration on powdery mildew generated by humidifying atomization of the humidifying unit 5. The ultraviolet lamp 9 is used for killing microorganisms such as bacteria and viruses intercepted by the air supply filtering unit 8.
In this embodiment, the return air filter unit 7 employs a primary filter and a secondary filter. Wherein the primary filter is used for filtering dust particles with the particle size of more than 5 mu m. The medium-efficiency filter is used for filtering 1-5 mu m of particle dust and various suspended matters. The air supply filter unit 8 supplies air to the filter, and the air supply filter adopts a sub-efficient filter or a high-efficient filter. The sub-high efficiency, high efficiency filter is used to filter particulate dust below 0.5 μm and various suspended substances.
This application takes purification performance's air conditioning indoor unit is through setting up return air filter unit 7 in return air inlet 2 department, sets up air supply filter unit 8 in supply-air outlet 3 department, sets up ultraviolet lamp 9 between air supply filter unit 8 and evaporimeter 6, can avoid the dust in the air effectively to get into in the wind channel, can effectively intercept microorganism such as bacterium and virus that air conditioning indoor unit inside air carried simultaneously to utilize ultraviolet lamp 9 to kill microorganism such as bacterium and virus under the interception, this application can carry out multistage purification to the air that sends into, can avoid appearing secondary pollution.
In some embodiments, as shown in fig. 2, the supply air filtering unit 8 is disposed obliquely in a space between the supply air port 3 and the evaporator 6, and isolates the supply air port 3 from the evaporator 6. The blower filter unit 8 includes a blower filter 81, a driving mechanism 82, and a filter frame 83. The driving mechanism 82 is in transmission connection with the air supply filter 81. The drive mechanism 82 drives the blower filter 81 to move into the filter frame 83 or to withdraw from the filter frame 83. The filter frame 83 is provided at opposite sides thereof with bypass valves 84 for switching the temperature regulation mode, the purge regulation mode, and the purge mode.
In a particular embodiment, the drive mechanism 82 includes a rubber wheel 821 and a motor. Rubber wheels 821 are fixedly provided on both sides of the filter frame 83, and both rubber wheels 821 are relatively clamped on both side surfaces of the blower filter 81. The rubber wheel 821 is connected to the motor through a driving shaft. By controlling the motor to operate, the motor drives the driving shaft to rotate, and the driving shaft drives the rubber wheel 821 to rotate, wherein the rubber wheel 821 on one side of the air supply filter 81 rotates clockwise, the rubber wheel 821 on the other side rotates counterclockwise, and the rubber wheel 821 enables the air supply filter 81 to move in the filter frame 83 along the length direction of the filter frame 83. The air blowing filter 81 moves in the filter frame 83 along the longitudinal direction thereof, and when the driving direction of the motor is changed, the moving direction of the air blowing filter 81 is changed to the opposite direction. Of course, the present embodiment is just one driving scheme adopted by the driving mechanism 82, and other driving schemes may be adopted by the driving mechanism 82.
In the above embodiment, the air conditioning indoor unit further includes a controller connected to the motor, and a position sensor is provided at a port opposite to a port of the filter frame 83 serving as an inlet and outlet of the air supply filter 81. The position sensor is connected with the controller. The controller controls the operation of the motor based on the position signal fed back by the position sensor to ensure that the blower filter 81 is installed in place in the filter frame 83.
In the above embodiment, the blower filter 81 is housed in the isolation bag 811. A ring of grooves 812 is formed in a side wall of one port of the filter frame 83 which is an inlet and outlet of the blower filter 81. The opening of the isolation bag 811 can be fastened to the groove 812 by a rubber band, and the isolation bag 811 is prevented from falling off from one end of the filter frame 83.
When the blower filter 81 is mounted in the filter frame 83, one end of the blower filter 81 is mounted at one port of the filter frame 83, and the opening of the isolation bag 811 is fastened in the groove 812 of one port of the filter frame 83. The motor is controlled to work, and the motor drives the rubber wheel 821 to linearly move along the length direction of the filter frame 83 through the driving shaft, and the rubber wheel 821 clamps the air supply filter 81 to move into the filter frame 83. The isolation bag 811 is housed in a space between the housing 1 and the filter frame 83.
When the blower filter 81 is withdrawn from the filter frame 83, the motor is controlled to operate, and the motor drives the rubber wheel 821 to linearly move along the length direction of the filter frame 83 through the driving shaft, and the rubber wheel 821 clamps the blower filter 81 to withdraw from the filter frame 83. After the blower filter 81 is retracted into the isolation bag 811, the opening of the isolation bag 811 is sealed.
The process of replacing the air supply filter 81 can isolate the operator from the air supply filter 81, and prevent the operator from directly contacting with microorganisms such as bacteria or viruses intercepted on the air supply filter 81, thereby reducing the infection of the operator by the microorganisms such as bacteria or viruses.
Specifically, the isolation bag 811 employs an easy-to-seal bag, which facilitates the handling of the isolation bag 811 by an operator after the efficient filter or filters are withdrawn into the isolation bag 811.
In a specific embodiment, the humidification unit 5 includes a water storage tank 51 and an atomizing vaporization assembly 52. The water storage tank 51 is arranged at the bottom of the indoor unit of the air conditioner, and adopts a drawing type structure, so that a user can conveniently add water into the water storage tank 51. An atomizing vaporization assembly 52 is disposed at one end of the evaporator 6. The water storage tank 51 is connected with the atomization vaporization assembly 52 through a pipeline.
In some embodiments, a fresh air inlet 10 and a fresh air filtering unit 11 are further disposed in the casing 1 of the indoor unit of the air conditioner. The fresh air inlet 10 is arranged at the lower part of the shell 1 and is connected with a fresh air fan of an outdoor unit, and the fresh air filtering unit 11 is arranged at the fresh air inlet 10. The fresh air filtering unit 11 is used for filtering fresh air entering the air conditioner indoor unit, so that the cleanliness of air entering the air conditioner indoor unit is further guaranteed. Specifically, the fresh air filter unit 11 employs a medium-efficiency filter and a sub-high-efficiency filter. After coarse filtration, fresh air is sent into the indoor unit of the air conditioner through the fresh air inlet 10 by the fresh air fan.
In a specific embodiment, the housing 1 adopts a cuboid structure, and the cross section of the cuboid structure is rectangular or rounded square. The return air filtering unit 7 adopts a rectangular structure, the air outlet side of the return air filtering unit is opposite to the air inlet of the fan 4, and the air outlet of the fan 4 is positioned below the evaporator 6 and opposite to the evaporator 6. The return air filtering unit 7 and the air supply filtering unit 8 have different filtering efficiency and resistance, and the particle size and dust holding amount of the intercepted particles are also different, so that the replacement periods of different filters with the same size are different in the same environment, and the sizes of the return air filtering unit 7 and the air supply filtering unit 8 can be optimized according to actual conditions by separate arrangement, so that the optimal collocation combination is achieved.
In another specific embodiment, as shown in fig. 3 to 5, the housing 1 adopts a cylindrical structure. The return air filtering unit 7 adopts a cylindrical structure. The filtering level of the cylindrical structure is increased from outside to inside in sequence, wherein the outer layer of the cylindrical structure adopts a primary filter, and the inner layer of the cylindrical structure adopts a medium-efficiency filter. The middle cavity of the cylindrical structure forms an air channel, and filtered air enters the air inlet of the fan 4 from the air channel. Specifically, the fresh air filter unit 11 is provided at the bottom of the cylindrical structure. In this embodiment, besides the sizes of the return air filtering unit 7 and the air supply filtering unit 8 can be optimized according to practical situations, the middle cavity surrounded by the cylindrical structure can be utilized, so that the fresh air filtering unit 11 is convenient to set and the air duct is convenient to arrange.
In some embodiments, the air conditioning indoor unit further includes a temperature sensor and a particulate matter sensor, both of which are disposed outside the casing 1. The temperature sensor and the particulate matter sensor are both connected with the controller. The temperature sensor is used for detecting indoor temperature, and the particulate matter sensor is used for detecting indoor particulate matter concentration. The side of the filter frame 83 is also provided with a bypass valve 84, and the bypass valve 84 is connected to the controller.
Based on the above-mentioned air conditioner indoor unit, as shown in fig. 6, the present application further provides a control method of the air conditioner indoor unit with purification function, which includes the following steps:
s1, acquiring indoor temperature by using a temperature sensor, and acquiring indoor particulate matter concentration by using a particulate matter sensor.
S2, the controller judges whether the collected indoor temperature meets a temperature preset value or not, and whether the concentration of the particulate matters meets a particulate matter concentration preset value or not.
S3, if the indoor temperature meets the preset temperature value and the concentration of the particulate matters does not meet the preset concentration value, entering a purification regulation mode.
If the indoor temperature does not meet the preset temperature value and the particulate matter concentration meets the preset particulate matter concentration value, entering a temperature regulation mode.
If the indoor temperature does not meet the preset temperature value and the concentration of the particulate matters does not meet the preset concentration value, entering a temperature and purification combined regulation mode.
And S4, when the air quantity enters the purification regulation mode, the bypass valve 84 is controlled to be closed, and the fan 4 operates according to the gear corresponding to the air quantity obtained through analysis of the purification regulation mode.
When the temperature regulation mode is entered, control closes the bypass valve 84, entering the purge mode.
When the temperature and purification combined regulation mode is entered, priorities of the purification regulation mode and the temperature regulation mode are judged. If the air volume obtained by analysis in the temperature regulation mode is larger than the air volume obtained by analysis in the purification regulation mode, the temperature regulation mode is prioritized, otherwise, the purification regulation mode is prioritized.
If the temperature regulation mode is prior, further judging whether the analyzed air quantity in the temperature regulation mode is larger than the air quantity of the maximum gear in the purification regulation mode; if so, control closes the bypass valve 84, entering a purge mode; otherwise, the bypass valve 84 is controlled to be closed, and the indoor fan 4 operates according to the fan 4 gear corresponding to the air quantity obtained through analysis in the temperature regulation mode and corresponding to the air quantity in the purification regulation mode.
If the purge adjustment mode is prioritized, the control closes the bypass valve 84, and the indoor fan 4 operates in accordance with the amount of air analyzed in the purge adjustment mode corresponding to the fan 4 gear in that mode.
According to the control method of the air conditioner indoor unit with the purification function, the temperature regulation mode, the purification regulation mode and the temperature and purification combined regulation mode of the air conditioner indoor unit with the purification function are distinguished according to the indoor temperature, the particulate matter concentration, the temperature preset value and the particulate matter concentration preset value, the rotating speed of the fan 4 is controlled according to different regulation modes, and the purpose of ensuring that the indoor cleanliness and the room temperature are regulated to a proper state can be achieved.
In the step S4, the control process of the purge mode is as follows:
1) Judging whether the air quantity obtained by analysis in the temperature regulation mode is smaller than the air quantity of the lowest gear of the purging mode, if so, operating with the air quantity of the lowest gear of the purging mode, and executing the step 2); otherwise, running in a gear corresponding to the air quantity in the purging mode corresponding to the air quantity obtained by analysis in the temperature regulation mode, and executing the step 3).
2) Judging whether the running time meets the current gear purging set time, if so, exiting a purging mode, opening a bypass valve 84, and analyzing the obtained air quantity to run in a gear corresponding to the air quantity in a temperature regulation mode by a fan 4; otherwise, the air quantity of the lowest gear of the purging mode is used for running again.
3) Judging whether the accumulated purge setting time corresponding to the accumulated purge air quantity is smaller than the accumulated time before an analytical lifting unit in a temperature regulation mode, and if so, exiting the purge mode; otherwise, the fan 4 operates according to the gear corresponding to the air quantity in the purging mode corresponding to the air quantity obtained through analysis in the temperature regulation mode, and returns to the step 1) until the purging mode is exited.
The control method of the air conditioner indoor unit with the purification function further comprises the following steps:
s5, judging whether the compressor is frequency conversion control or fixed frequency control, if the compressor is fixed frequency control, performing start-stop control on the compressor, and if the compressor is frequency conversion control, performing frequency conversion control on the compressor, and performing opening control on the electronic expansion valve.
When the temperature adjustment mode is entered, the bypass valve 84 is controlled to be opened, the indoor fan 4 is operated according to a gear corresponding to the air volume analyzed in the temperature adjustment mode, and then step S5 is entered to determine whether the compressor is frequency conversion control or fixed frequency control.
When the temperature and purification combined regulation mode is entered, if the purification regulation mode is prioritized, the bypass valve 84 is controlled to be closed, the indoor fan 4 is operated according to the wind quantity analyzed in the purification mode corresponding to the fan 4 gear in the mode, and then the step S5 is entered to judge whether the compressor is frequency conversion control or fixed frequency control.
When the temperature and purification combined regulation mode is entered, if the temperature regulation mode is prioritized, the bypass valve 84 is controlled to be closed, the indoor fan 4 is operated according to the fan 4 gear corresponding to the air quantity obtained by analysis in the temperature regulation mode corresponding to the air quantity in the purification regulation mode, and then the step S5 is entered to judge whether the compressor is frequency conversion control or fixed frequency control.
By adopting the purging mode, microorganisms such as bacteria and viruses which are bred in the evaporator 6 and the indoor unit can be purged to the air-supply filtering unit 8 when the indoor unit is started, so that the microorganisms such as the bacteria and the viruses are conveniently intercepted, and the cleanliness of the indoor air is ensured.
The application also provides an air conditioner, which comprises the air conditioner indoor unit in any embodiment. The detailed structure of the indoor unit of the air conditioner may refer to fig. 1 to 5, and will not be described herein. By adopting the air conditioner indoor unit, compared with the existing air conditioner, the air conditioner disclosed by the application is provided with the return air filtering unit 7 at the return air inlet 2, the air supply opening 3 is provided with the air supply filtering unit 8, and the ultraviolet lamp 9 is further arranged between the air supply filtering unit 8 and the evaporator 6, so that the air conditioner disclosed by the application can effectively solve the problems that the purification effect of the existing air conditioner with the purification function is not thorough and secondary pollution is easy to cause.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
It should be noted that in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "plurality" means at least two.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in each embodiment of the present application may be integrated in one central processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (7)

1. The control method of the air conditioner indoor unit with the purification function is characterized by comprising the following steps of:
collecting indoor temperature and indoor particulate matter concentration;
judging whether the collected indoor temperature meets a temperature preset value or not, and judging whether the concentration of the particulate matters meets a particulate matter concentration preset value or not;
if the indoor temperature meets the preset temperature value and the concentration of the particulate matters does not meet the preset concentration value, entering a purification regulation mode; if the indoor temperature does not meet the preset temperature value and the concentration of the particulate matters meets the preset concentration value, entering a temperature regulation mode; if the indoor temperature does not meet the preset temperature value and the concentration of the particulate matters does not meet the preset concentration value, entering a temperature and purification combined regulation mode;
when the air quantity enters a purification regulation mode, the bypass valve is controlled to be closed, and the fan operates according to a gear corresponding to the air quantity obtained through analysis of the purification regulation mode; when the temperature regulation mode is entered, the bypass valve is controlled to be closed, and the purging mode is entered; when the temperature and purification combined regulation mode is entered, judging the priority of the purification regulation mode and the temperature regulation mode; if the air volume obtained by analysis in the temperature regulation mode is larger than the air volume obtained by analysis in the purification regulation mode, the temperature regulation mode is prioritized, otherwise, the purification regulation mode is prioritized;
if the temperature regulation mode is prior, further judging whether the analyzed air quantity in the temperature regulation mode is larger than the air quantity of the maximum gear in the purification regulation mode; if yes, controlling to close the bypass valve and entering a purging mode; otherwise, controlling to close the bypass valve, and operating the indoor fan according to a fan gear corresponding to the air quantity obtained by analysis in the temperature regulation mode and corresponding to the air quantity in the purification regulation mode; if the purifying and adjusting mode is prior, controlling to close the bypass valve, and operating the indoor fan according to the fan gear in the mode corresponding to the analyzed air quantity in the purifying and adjusting mode;
the control process of the purging mode comprises the following steps:
1) Judging whether the air quantity obtained by analysis in the temperature regulation mode is smaller than the air quantity of the lowest gear of the purging mode, if so, operating with the air quantity of the lowest gear of the purging mode, and executing the step 2); otherwise, operating with a gear corresponding to the air quantity in the purging mode corresponding to the air quantity obtained by analysis in the temperature regulation mode, and executing the step 3);
2) Judging whether the running time meets the current gear purging set time, if so, exiting a purging mode, opening a bypass valve, and running the fan according to the gear corresponding to the air quantity obtained by analysis in a temperature regulation mode; otherwise, the air quantity of the lowest gear in the purging mode is used for running again;
3) Judging whether the accumulated purge setting time corresponding to the accumulated purge air quantity is smaller than the accumulated time before the lifting gear analyzed in the temperature regulation mode, and if so, exiting the purge mode; otherwise, the fan operates according to the gear corresponding to the air quantity in the purging mode corresponding to the air quantity obtained through analysis in the temperature regulation mode, and returns to the step 1) until the purging mode is exited;
the indoor unit of the air conditioner with the purification function comprises a shell, wherein the lower part of the shell is provided with an air return opening, the upper part of the shell is provided with an air supply opening, and the inside of the shell is sequentially provided with a fan, a humidifying unit and an evaporator from bottom to top; the air return port is provided with an air return filter unit, and the air supply port is provided with an air supply filter unit; an ultraviolet lamp is arranged on the inner wall of the shell and positioned between the evaporator and the air supply filtering unit; the return air filtering unit is used for performing first-stage filtering on air entering the air conditioner indoor unit from the return air inlet; the air supply filtering unit is used for performing second-stage filtering on air before the air passes through the evaporator and is sent indoors; the ultraviolet lamp is used for killing microorganisms intercepted by the air supply filtering unit;
the air supply filtering unit is obliquely arranged in the space between the air supply port and the evaporator; the air supply filter unit comprises an air supply filter, a driving mechanism and a filter frame; the driving mechanism is in transmission connection with the air supply filter; the driving mechanism drives the air supply filter to move into the filter frame or withdraw from the filter frame; two opposite sides of the filter frame are provided with bypass valves for switching the temperature regulation mode, the purge regulation mode and the purge mode.
2. The air conditioner indoor unit with the purification function is characterized in that the air conditioner indoor unit with the purification function executes the control method of claim 1, the driving mechanism comprises rubber wheels and a motor, the rubber wheels are fixedly arranged on two sides of the filter frame, and the two rubber wheels are clamped on two side surfaces of the air supply filter relatively; the rubber wheel is connected with the motor through a driving shaft.
3. The indoor unit of air conditioner with purifying function according to claim 2, further comprising a controller connected to the motor, wherein a position sensor is provided at an opposite port of a port of the filter frame as an inlet and outlet of the air supply filter; the position sensor is connected with the controller; and the controller controls the motor to work according to the position signal fed back by the position sensor.
4. The indoor unit of air conditioner with purification function according to claim 2, wherein the air supply filter is accommodated by an isolation bag; a circle of grooves are formed in the side wall of one port of the filter frame serving as an inlet and an outlet of the air supply filter; the mouth of the isolation bag is fixed in the groove.
5. The indoor unit of air conditioner with purifying function according to claim 2, wherein the humidifying unit includes a water storage tank and an atomization vaporization assembly; the water storage tank is arranged at the bottom of the air conditioner indoor unit and adopts a drawing type structure; the atomization vaporization assembly is arranged at one end of the evaporator, and the water storage tank is connected with the atomization vaporization assembly.
6. The indoor unit of air conditioner with purification function according to claim 2, wherein a fresh air inlet and a fresh air filtering unit are further arranged in the housing of the indoor unit of air conditioner; the fresh air port is arranged at the lower part of the shell, and the fresh air filtering unit is arranged at the fresh air port; the fresh air filtering unit is used for filtering fresh air entering the air conditioner indoor unit.
7. The indoor unit of air conditioner with purifying function according to claim 6, wherein the housing has a cylindrical structure; the return air filtering unit adopts a cylindrical structure; the filtering level of the cylindrical structure is sequentially increased from outside to inside, an air channel is formed in the middle cavity of the cylindrical structure, and filtered wind enters the air inlet of the fan from the air channel; the fresh air filtering unit is arranged at the bottom of the cylindrical structure.
CN201810371231.1A 2018-04-24 2018-04-24 Air conditioner indoor unit with purification function and control method thereof Active CN108458408B (en)

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CN109916038B (en) * 2019-03-21 2020-11-03 青岛海尔空调器有限总公司 Self-cleaning humidification control method for air conditioner
GB2601529A (en) * 2020-12-03 2022-06-08 Rocco Tulino Rosario Electrostatic device with high hourly capacity for indoor air sanitization
CN112902381A (en) * 2021-02-10 2021-06-04 珠海格力电器股份有限公司 Control method of air conditioner and air conditioner using same
CN113970161B (en) * 2021-11-29 2023-05-05 宁波奥克斯电气股份有限公司 Control method of air conditioning equipment with fresh air function

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