CN108917015B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN108917015B CN108917015B CN201811147729.6A CN201811147729A CN108917015B CN 108917015 B CN108917015 B CN 108917015B CN 201811147729 A CN201811147729 A CN 201811147729A CN 108917015 B CN108917015 B CN 108917015B
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- middle frame
- exhaust pipe
- suction assembly
- carbon dioxide
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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
- F24F1/0007—Indoor units, e.g. fan coil units
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
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- 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)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air-Flow Control Members (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner and a control method thereof, and the air conditioner comprises a middle frame, an air suction assembly and an exhaust pipe, wherein the middle frame is arranged on the inner side of a wall body, the air suction assembly is arranged in the middle frame, the air suction assembly is provided with an air inlet and an air outlet, one end of the exhaust pipe penetrates through the middle frame and is detachably connected with the air outlet, the other end of the exhaust pipe extends to the outside of the middle frame and is used for arranging the outer side of the wall body, and the air suction assembly sucks air from the air inlet structure through the air inlet and discharges the air from the exhaust pipe. The subassembly that induced drafts starts the air of absorbable back, and the air passes through in proper order the inlet structure with the air inlet gets into in the subassembly that induced drafts, then follow the blast pipe is discharged to outdoor, makes indoor production negative pressure, because indoor not totally airtight space, outdoor air will flow to indoor low pressure side from spaces such as crack or window gap, promotes the room air quality.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof.
Background
At present ordinary family daily life indoor general meeting installation air conditioner adjusts indoor temperature, in order to avoid the energy loss that indoor outer heat exchange caused, reduces the idle call electric quantity, and the user can airtight door and window generally reduce the loss. However, when people are located indoors for a long time, under the condition of a closed door and window, a human body consumes oxygen in the room and breathes out carbon dioxide, and data show that two adults sleep soundly in a closed room with 10 square meters for one night, and the concentration of carbon dioxide in the room can be increased from 600ppm to 1200 ppm.
Carbon dioxide is not toxic, but too high a concentration can cause discomfort and even injury to a person. The world health organization specifies healthy home standards: the carbon dioxide concentration needs to be less than 1000 PPM. According to the recommendations of ASHRAE (american society of heating, refrigeration and air conditioning engineers), when the indoor carbon dioxide concentration reaches 700PPM, the air is polluted and uncomfortable; above 1000PPM, people will feel sleepy and tired; if the human body is continuously in a 5000PPM high-concentration carbon dioxide environment for more than 8 hours, the personal life safety is seriously harmed.
Research literature shows that when the indoor air quality is poor, people are prone to being distracted and have memory loss, and sleep quality is affected. Therefore, in order to avoid the situation that the concentration of indoor carbon dioxide is too high, a user often cannot completely seal a door or a window, but reserves a few door gaps or window gaps, so that the condition that outdoor part of fresh air enters the indoor space through the door gaps or the window gaps is still ensured in the opening process of the air conditioner, even if the user reserves the door gaps and the window gaps, indoor and outdoor air convection is very slow, and the effect of effectively replacing the indoor and outdoor air is difficult to achieve.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a solution to the above-mentioned drawbacks of the prior art
An air conditioner and a control method thereof aim to improve indoor air quality.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the utility model provides an air conditioner, its is including being used for installing the center at the wall body inboard, and it still includes subassembly and the blast pipe that induced drafts, the subassembly setting that induced drafts is in the center, the subassembly that induced drafts has air inlet and gas vent, the one end of blast pipe is passed the center with the gas vent is connected, the other end extends to outside the center and be used for setting up the wall body outside, be provided with air inlet structure on the center, the subassembly that induced drafts passes through the air inlet is followed air inlet structure absorbs the air and follows the air the blast pipe is discharged.
The air conditioner, wherein, the subassembly that induced drafts includes the spiral case, sets up centrifugal fan in the spiral case and setting up the motor outside the spiral case, the pivot of motor passes the spiral case and with centrifugal fan is connected.
The air conditioner, wherein, still be provided with air duct system, base and automatically controlled box in the center, air duct system automatically controlled box with the subassembly that induced drafts follows in proper order the length direction of base sets up on the base, induced draft the subassembly with the lateral wall of center is adjacent, air duct system the subassembly that induced drafts all with automatically controlled box is connected.
The air conditioner, wherein, the air inlet structure includes the air inlet grille, the air inlet grille sets up in the top of center.
The air conditioner, wherein, air inlet structure includes a plurality of inlet port, and a plurality of inlet port all sets up the lateral wall of center, the inlet port with the air inlet sets up relatively
The air conditioner also comprises an exhaust nozzle, one end of the exhaust nozzle is connected with the exhaust port, and the other end of the exhaust nozzle is connected with the exhaust pipe; the exhaust nozzle is characterized in that a plurality of first extending portions are arranged on the outer side of the exhaust nozzle, a plurality of second extending portions are arranged on the outer side of the volute, the second extending portions correspond to the first extending portions one to one, threaded holes are formed in the first extending portions, and screw through holes corresponding to the threaded holes are formed in the second extending portions.
The air conditioner, wherein, the exhaust nozzle outside is provided with a plurality of bellying, be provided with a plurality of mounting hole on the blast pipe, the mounting hole with the bellying block is connected.
The air conditioner, its still include with the blast pipe extends to the protection against insects lid that the connection can be dismantled to the one end in the wall body outside, the protection against insects is covered and is provided with a plurality of air vent, be provided with a plurality of draw-in groove on the blast pipe, the protection against insects is covered and is provided with a plurality of trip, the trip with the draw-in groove block is connected.
A control method based on the air conditioner is characterized in that a carbon dioxide detection sensor is arranged on the outer side of a middle frame of the air conditioner, and the control method comprises the following steps:
starting the air conditioner, and acquiring an indoor current carbon dioxide concentration value through a carbon dioxide detection sensor;
when the current carbon dioxide concentration value is larger than the preset value, the air suction assembly is controlled to be started and reach the preset rotating speed, so that the indoor air is sucked into the air suction assembly through the air inlet structure and then is exhausted to the outer side of the wall body from the exhaust pipe.
The control method further comprises the following steps:
when the current carbon dioxide concentration value is larger than a preset value, judging the change trend of the carbon dioxide concentration value;
increasing the rotation speed of the motor when the carbon dioxide concentration value increases;
when the carbon dioxide concentration value is reduced and is not lower than the preset value, reducing the rotating speed of the motor;
and when the carbon dioxide concentration value is reduced to be lower than the preset value, controlling the motor to stop rotating.
Has the advantages that: according to the invention, the air suction assembly can suck air after being started, the air sequentially enters the air suction assembly through the air inlet structure and the air inlet and is then discharged to the outside from the exhaust pipe, so that negative pressure is generated indoors, and because the inside is not a completely closed space, the outdoor air can flow from the space such as a door seam or a window seam to the indoor low-pressure side, so that the speed of fresh air flowing into the inside from the space such as the door seam or the window seam is increased outdoors, and the indoor air quality is improved.
Drawings
FIG. 1 is an exploded view of an air conditioner according to the present invention;
FIG. 2 is a schematic view of the air duct system, the electronic control box, the air suction assembly and the base assembly of the present invention;
FIG. 3 is a schematic view of the volute of the present invention connected to the exhaust nozzle;
FIG. 4 is an exploded view of the volute of the present invention;
FIG. 5 is a schematic view of the construction of the exhaust nozzle of the present invention;
FIG. 6 is a schematic view of the exhaust pipe of the present invention connected to one end of the exhaust nozzle;
FIG. 7 is a schematic view of the exhaust pipe of the present invention with one end connected to the insect-proof cover;
FIG. 8 is a schematic view of a card slot of the present invention;
FIG. 9 is a schematic view of the structure of the insect prevention cover according to the present invention;
FIG. 10 is a schematic view of the hook of the present invention;
fig. 11 is a flowchart of the control method described in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Please refer to fig. 1-11. The present invention provides an air conditioner, as shown in fig. 1 and 4, which comprises a middle frame 1, a suction assembly 4 and an exhaust pipe 5; the middle frame 1 is used for being installed on the inner side of a wall body (the side of the wall body facing the indoor); the middle frame 1 is provided with an air inlet structure, the air suction component 4 is arranged in the middle frame 1, the air suction assembly 4 is provided with an air inlet 400 and an air outlet 401, one end of the exhaust pipe 5 penetrates through the middle frame 1 to be connected with the air outlet 401, the other end extends out of the middle frame 1 and is used for being arranged on the outer side of a wall body (the side of the wall body facing outdoors), the air suction component 4 can suck air after being started, the air enters the air suction component 4 through the air inlet structure and the air inlet 400 in sequence and then is discharged to the outdoor from the exhaust pipe 5, so that negative pressure is generated in the room, because the indoor space is not completely sealed, the outdoor air can flow from the space such as door gap or window gap to the indoor low-pressure side, and further, the speed of fresh air flowing into the room from the space such as a door gap or a window gap is increased, and the indoor air quality is improved.
The wall body can be a brick wall, a stone wall or a plate wall, and has certain bearing capacity and stability so as to install the air conditioner.
An evaporator, an air duct system 2, a base 3 and an electric control box 12 are further arranged in the middle frame 1, the air duct system 2, the electric control box 12 and the air suction assembly 4 are sequentially arranged on the base 3 along the length direction of the base 3 (as shown in fig. 2), and the air suction assembly 4 is adjacent to the side wall of the middle frame 1; the air duct system 2, the air suction assembly 4 and the evaporator are all connected with the electric control box 12, and the electric control box 12 is used for respectively controlling the closing and the opening of the evaporator, the air duct system 2 and the air suction assembly 4.
In a first preferred embodiment, the air intake structure includes an air intake grille 10 disposed at the top of the middle frame, the evaporator is located above the air duct system 2, and when refrigeration is required, the air duct system 2 starts air sucked from the air intake grille 10 to pass through the evaporator, so as to blow out cold air; the electronic control box 12 is arranged between the air suction assembly 4 and the air duct system 2, so that the air suction assembly 4 is far away from the evaporator, and after the air suction assembly 4 is started, the air inlet grille 10 enters partial indoor air in the middle frame, which does not pass through the evaporator, is directly sucked by the air suction assembly 4 and is discharged from the exhaust pipe 5. In the invention, only the existing air conditioner needs to be lengthened, so that one side of the air duct system 2 is enough to accommodate the air suction assembly 4, the conventional air conditioning functions (such as refrigeration and heating) of the air conditioner are not influenced, and the indoor air quality is improved by enabling the indoor to have certain air exchange capacity through the newly added air suction assembly 4.
In a second preferred embodiment, the air intake structure includes a plurality of air inlets 11 disposed on the side wall of the middle frame, the air inlets 11 are disposed on the side wall of the middle frame 1 adjacent to the air suction assembly 4, so that the air inlets 11 and the air inlet 400 can be disposed relatively, thereby enabling the air suction assembly 4 to suck air from the air inlets 11, reducing the distance between the air inlets 400 and the air inlets 11 as much as possible, reducing the indoor air entering from the air inlets 11 and flowing into the air inlets 400 after entering the middle frame 1, and increasing the air suction amount of the air suction assembly 4 to better realize the discharge of the indoor air. In addition, because the exhaust hole 11 is arranged on the side wall of the middle frame 1, the air suction assembly 4 needs to be close to the side wall and correspond to the air inlet hole 11, which is beneficial to the volute to better utilize the space in the middle frame 1.
The suction assembly 4 includes a scroll 40, a centrifugal fan 403 (the present invention may be, but is not limited to, using a centrifugal fan) disposed in the scroll 40, and a motor disposed outside the scroll 40, and a rotating shaft of the motor passes through the scroll 40 and is connected to the centrifugal fan 403. Further, an air inlet cavity is arranged between the scroll casing 40 and the middle frame 1, one end of the air inlet cavity is connected with the air inlet 400, and the other end of the air inlet cavity is connected with the air inlet 11, when the motor is started and drives the centrifugal fan 403 to rotate, the air in the scroll casing 40 generates a vortex along with the rotation of the centrifugal fan 403, the air flow rotates in an accelerating manner in the scroll casing 40 with a certain curvature, and is discharged to the outside through the air outlet 401 and the exhaust pipe 5; because the vortex generates negative pressure in the inner cavity of the volute 40, the air inlet 400 sucks in indoor air through the air inlet cavity and the air inlet 11, and the volute 40 sucks in indoor air continuously and discharges the air to the outside through the exhaust pipe 5 with the continuous rotation of the centrifugal fan 403, so that negative pressure is generated indoors; because the indoor space is not completely closed, outdoor air can flow to the indoor low-pressure side from the space such as a door gap or a window gap, the speed of fresh air flowing into the indoor space from the space such as the door gap or the window gap is increased, and the indoor air quality is improved.
As shown in fig. 4, the scroll casing 40 includes an upper cover 41 and a bottom cover 42 connected to each other, the air inlet 400 is disposed on the upper cover 41, and a rotation shaft of the motor passes through the bottom cover 42 and is connected to the centrifugal fan 403; because the shape of the volute 40 causes a vortex to be generated in the volute 40 when the centrifugal fan 403 rotates, the exhaust port 401 is arranged on the circumference of the volute 40 in the invention, so that the airflow is easier to exhaust from the exhaust port 401 when moving along the internal cavity of the volute 40, thereby being beneficial to forming negative pressure at the indoor side.
The exhaust pipe 5 is cylindrical, flexible and bendable; in order to butt the exhaust pipe 5 with the volute 40, as shown in fig. 3, the air conditioner further comprises an exhaust nozzle 6, two ends of the exhaust nozzle 6 are square and circular respectively and are provided with openings, one end of the exhaust nozzle 6, which is square, is connected with the exhaust port 401, one end of the exhaust nozzle 6, which is circular, is connected with the exhaust pipe 5, shapes of two ends of the exhaust nozzle 6 are corresponding to the exhaust port 401 and the exhaust pipe 5 respectively, so that the tightness of the exhaust nozzle 6, which is connected with the volute 40 and the exhaust pipe 5, is improved, and vortex in the volute 40 can be completely discharged to the outside through the exhaust pipe 5, thereby effectively ensuring the formation of indoor negative pressure.
As shown in fig. 5, a plurality of first extending portions 61 are arranged on the outer side of one square end of the exhaust nozzle 6, as shown in fig. 4, a plurality of second extending portions 404 are arranged on the outer side of the exhaust port 401, the plurality of second extending portions 404 correspond to the plurality of first extending portions 61 one to one, threaded holes are formed in the first extending portions 61, and screw through holes corresponding to the threaded holes are formed in the second extending portions 404; the first extension part 61 and the second extension part 404 are connected by screws, and the number of the screws, the first extension part 61 and the second extension part 404 are equal; the screw passes through the screw through hole and then is inserted into the threaded hole and is in threaded connection with the threaded hole, so that the volute 40 is connected with the exhaust nozzle 6.
As shown in fig. 5, a plurality of protrusions 62 are provided on the outer side of the exhaust nozzle 6, and as shown in fig. 6, a plurality of mounting holes 51 are provided in the exhaust pipe 5, and the mounting holes 51 are engaged with the protrusions 62. The exhaust pipe 5 is in interference fit with the exhaust nozzle 6, one side of the protruding portion 62 is connected with the exhaust nozzle 6, and the other side of the protruding portion deviates from the exhaust nozzle 6 and is provided with an inclined surface, the distance between one end of the inclined surface facing the first extending portion 61 and the exhaust nozzle 6 is larger than the distance between one end of the inclined surface deviating from the first extending portion 61 and the exhaust nozzle 6, so that when the exhaust pipe 5 is installed on the exhaust nozzle 6, the inclined surface plays a role in guiding, and the exhaust nozzle 6 is convenient to insert into an opening of the exhaust pipe 5; when the protruding portion 62 slides along the inner wall of the exhaust pipe 5 to correspond to the mounting hole 51, the protruding portion 62 is snapped into the mounting hole 51, and is connected to the mounting hole 51 by the snapping connection of the protruding portion 62.
The one end that blast pipe 5 extends to outdoor can be dismantled and be connected with protection against insects lid 7, as shown in fig. 9, be provided with a plurality of air vent 70 on the protection against insects lid 7 to prevent the worm mouse to pass through in the normal outside carminative simultaneously the blast pipe 5 gets into inside the center 1 causes the trouble.
As shown in fig. 7, the exhaust pipe 5 is provided with a plurality of slots 52, as shown in fig. 9, the insect-proof cover 7 is provided with a plurality of hooks 700, and the hooks 700 are connected with the slots 52 in a clamping manner. The insect-proof cover 7 comprises a bottom plate 71 and a ring-shaped side wall 72 arranged at one side of the bottom plate 71, and the vent holes 70 are arranged on the bottom plate 71; the bottom plate 71 is circular, and the annular side wall 72 is arranged along the circumference of the bottom plate 71; the hook 700 is positioned on the inner side of the annular side wall 72; preferably, the number of the hooks 700 is 3, and the hooks are arranged in an equilateral triangle.
As shown in fig. 10, the hook 700 includes a connecting portion 701 and a position-limiting portion 702 disposed at one end of the connecting portion 701; the connecting part 701 is perpendicular to the central axis of the bottom plate 71, and one end of the connecting part 701, which is far away from the limiting part 702, is connected with the annular side wall 72; the limiting part 702 is perpendicular to the connecting part 701 and faces the bottom plate 71; an accommodating space for accommodating the side wall of the exhaust pipe 5 is formed between the limiting portion 702 and the annular side wall 72, so as to limit the exhaust pipe 5 in the radial direction of the bottom plate 71. The inner diameter of the annular side wall 72 is larger than the outer diameter of the exhaust pipe 5.
The opening of the exhaust pipe 5 connected with one end of the volute 40 is a first opening, and the opening of the exhaust pipe 5 connected with one end of the insect-proof cover 7 is a second opening; the clamping groove 52 is an L-shaped clamping groove, as shown in fig. 8, the L-shaped clamping groove includes a first groove body 521, a second groove body 522 and a third groove body 523, which are sequentially communicated, the first groove body 521 is parallel to the third groove body 523, the first groove body 521 extends from the second opening along the side wall of the exhaust pipe 5 to the axial direction of the exhaust pipe 5, the second groove body 522 is arranged along the circumferential direction of the exhaust pipe 5, and the third groove body 523 is arranged from one end of the second groove body 522 to the second opening along the axial direction of the exhaust pipe 5; the depth of the first slot 521 is greater than that of the second slot 522, and the depth of the second slot 522 connected to one end of the third slot 523 is less than that of the third slot 523. The width of the second groove 522 is gradually reduced from the end connected with the first groove 521 to the end connected with the third groove 523, so as to guide the rotation of the insect-proof cover 7.
Inserting the connecting portion 701 into the first groove 521 from the second opening along the axial direction of the exhaust pipe 5, and positioning the annular sidewall 72 outside the exhaust pipe 5 and the stopper portion 702 inside the exhaust pipe 5; after the connecting part 701 is inserted into the bottom of the first slot 521, the insect-proof cover 7 is rotated along the length direction of the second slot 522, so that the connecting part 701 finally enters the third slot 523 through the second slot 522. Because the blast pipe 5 has the flexibility, and the bendable will the second opening of blast pipe 5 extends to outdoor back, under the action of gravity, blast pipe 5 extends to outdoor one end downwarping for partly card of connecting portion 701 is gone into the third cell body 523 degree of depth surpasss the region of second cell body 522 degree of depth, thereby the reinforcing draw-in groove 52 is right trip 700's limiting displacement guarantees protection against insects lid 7 with the fastness of blast pipe 5 connection.
The invention also provides a control method based on any one of the air conditioners, and a carbon dioxide detection sensor is arranged on the outer side of the middle frame of the air conditioner, so that the carbon dioxide detection sensor can be directly contacted with indoor air, and the accuracy of the carbon dioxide detection sensor in detecting the concentration of indoor carbon dioxide is improved. As shown in fig. 11, fig. 11 is a flowchart of the control method in the present invention; the control method comprises the following steps:
s100, starting an air conditioner, and acquiring an indoor current carbon dioxide concentration value through a carbon dioxide detection sensor;
when the air conditioner is started, the carbon dioxide detection sensor is synchronously started, the indoor current carbon dioxide concentration value is obtained through the carbon dioxide detection sensor, and whether the motor needs to be started for ventilation is judged according to the current carbon dioxide concentration value.
And S200, when the current carbon dioxide concentration value is larger than a preset value, controlling the air suction assembly to be started and reach a preset rotating speed, so that the indoor air is sucked into the air suction assembly through the air inlet structure and then is exhausted to the outer side of the wall body from the exhaust pipe.
When the current carbon dioxide concentration value is greater than the preset value, the motor is controlled to be started, so that the centrifugal fan 403 is driven to rotate, the motor reaches a preset rotating speed after being started, the preset rotating speed is maintained to work, indoor air is sucked into the air suction assembly 4 through the air inlet structure, airflow in the air suction assembly 4 forms vortex and is discharged to the outer side of the wall body through the exhaust pipe 5 from the exhaust port 401, namely, the outdoor side is outdoor, negative pressure is formed on the indoor side, outdoor air enters the indoor space through a door gap or a window gap, replacement of indoor and outdoor air is completed, and air replacement speed is increased.
And when the current carbon dioxide concentration value is smaller than a preset value, the carbon dioxide detection sensor continues to detect the indoor carbon dioxide concentration value.
The control method further comprises the steps of:
and when the current carbon dioxide concentration value is larger than the preset value, continuously acquiring the indoor carbon dioxide concentration value, judging the change trend of the carbon dioxide concentration value, and changing the rotating speed of the motor according to the change trend of the carbon dioxide concentration value so as to control the indoor and outdoor air replacement speed.
When the carbon dioxide concentration value is increased, the rotating speed of the motor is increased, and the indoor and outdoor air replacement speed is increased, so that the indoor air is replaced by fresh air as soon as possible, and the indoor carbon dioxide concentration is reduced as soon as possible;
when the carbon dioxide concentration value is reduced and is not lower than the preset value, reducing the rotating speed of the motor to save energy;
and when the carbon dioxide concentration value is reduced to be lower than the preset value, controlling the motor to stop rotating.
In summary, the present invention provides an air conditioner and a control method thereof, which are used for a middle frame, an air suction assembly and an exhaust pipe which are installed inside a wall body, wherein an air inlet structure is arranged on the middle frame, the air suction assembly is arranged inside the middle frame, the air suction assembly is provided with an air inlet and an air outlet, one end of the exhaust pipe passes through the middle frame and is detachably connected with the air outlet, the other end of the exhaust pipe extends to the outside of the middle frame and is used for being arranged outside the wall body, and the air suction assembly sucks air from the air inlet structure through the air inlet and discharges the air from the exhaust pipe. The subassembly that induced drafts starts the air of absorbable back, and the air passes through in proper order the inlet structure with the air inlet gets into in the subassembly that induced drafts, then follow the blast pipe is discharged to outdoor, makes indoor production negative pressure, because indoor not totally airtight space, outdoor air will flow to indoor low pressure side from spaces such as crack or window gap, promotes the room air quality.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. An air conditioner comprises a middle frame arranged on the inner side of a wall body, and is characterized by further comprising an air suction assembly and an exhaust pipe, wherein the air suction assembly is arranged in the middle frame and is provided with an air inlet and an air outlet, one end of the exhaust pipe penetrates through the middle frame to be connected with the air outlet, the other end of the exhaust pipe extends out of the middle frame and is used for being arranged on the outer side of the wall body, an air inlet structure is arranged on the middle frame, and the air suction assembly sucks air from the air inlet structure through the air inlet and discharges the air from the exhaust pipe; an air duct system and an electric control box are further arranged in the middle frame, the electric control box is located between the air suction assembly and the air duct system, and the space where the air suction assembly is located is independent of the space where the air duct system is located; the anti-insect cover is detachably connected with one end, extending to the outer side of the wall body, of the exhaust pipe, a plurality of vent holes are formed in the anti-insect cover, a plurality of clamping grooves are formed in the exhaust pipe, a plurality of clamping hooks are arranged on the anti-insect cover, and the clamping hooks are connected with the clamping grooves in a clamping mode; the draw-in groove is L type draw-in groove, the trip includes connecting portion and sets up the spacing portion of connecting portion one end, connecting portion are kept away from spacing portion one end with protection against insects lid is connected.
2. The air conditioner as claimed in claim 1, wherein the suction assembly includes a scroll casing, a centrifugal fan disposed in the scroll casing, and a motor disposed outside the scroll casing, a rotation shaft of the motor passing through the scroll casing and being connected to the centrifugal fan.
3. The air conditioner as claimed in claim 1, wherein a base is further disposed in the middle frame, the air duct system, the electrical control box and the air suction assembly are sequentially disposed on the base along a length direction of the base, the air suction assembly is adjacent to a side wall of the middle frame, and the air duct system and the air suction assembly are both connected to the electrical control box.
4. The air conditioner of claim 1, wherein the air intake structure comprises an intake grille disposed at a top of the center frame.
5. The air conditioner as claimed in claim 1, wherein the air intake structure includes a plurality of air intake holes, the plurality of air intake holes are formed in a side wall of the middle frame, and the air intake holes are formed opposite to the air inlet.
6. The air conditioner as claimed in claim 2, further comprising an exhaust nozzle having one end connected to the exhaust port and the other end connected to the exhaust pipe; the exhaust nozzle is characterized in that a plurality of first extending portions are arranged on the outer side of the exhaust nozzle, a plurality of second extending portions are arranged on the outer side of the volute, the second extending portions correspond to the first extending portions one to one, threaded holes are formed in the first extending portions, and screw through holes corresponding to the threaded holes are formed in the second extending portions.
7. The air conditioner as claimed in claim 6, wherein a plurality of protrusions are formed on an outer side of the exhaust nozzle, and a plurality of mounting holes are formed in the exhaust pipe, and the mounting holes are engaged with the protrusions.
8. A control method of an air conditioner based on any one of claims 1-7, wherein a carbon dioxide detection sensor is arranged outside a middle frame of the air conditioner, and the control method comprises the following steps: starting the air conditioner, and acquiring an indoor current carbon dioxide concentration value through a carbon dioxide detection sensor;
when the current carbon dioxide concentration value is larger than the preset value, the air suction assembly is controlled to be started and reach the preset rotating speed, so that the indoor air is sucked into the air suction assembly through the air inlet structure and then is exhausted to the outer side of the wall body from the exhaust pipe.
9. The control method according to claim 8, characterized by further comprising the steps of:
when the current carbon dioxide concentration value is larger than a preset value, judging the change trend of the carbon dioxide concentration value;
when the carbon dioxide concentration value is increased, the rotating speed of the motor is increased;
when the carbon dioxide concentration value is reduced and is not lower than the preset value, reducing the rotating speed of the motor;
and when the carbon dioxide concentration value is reduced to be lower than the preset value, controlling the motor to stop rotating.
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| CN201811147729.6A CN108917015B (en) | 2018-09-29 | 2018-09-29 | Air conditioner and control method thereof |
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| CN201811147729.6A CN108917015B (en) | 2018-09-29 | 2018-09-29 | Air conditioner and control method thereof |
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| JP2000121132A (en) * | 1998-10-15 | 2000-04-28 | Daikin Ind Ltd | Air conditioner |
| CN1534247A (en) * | 2003-04-02 | 2004-10-06 | 陈明强 | Room air purifier |
| JP2005233484A (en) * | 2004-02-18 | 2005-09-02 | Sanyo Electric Co Ltd | Air conditioner |
| CN108194986A (en) * | 2018-01-12 | 2018-06-22 | 青岛海尔空调器有限总公司 | Hanging air-conditioner indoor machine |
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