CN112682866A - Air conditioning unit and control method thereof - Google Patents
Air conditioning unit and control method thereof Download PDFInfo
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- CN112682866A CN112682866A CN202011604410.9A CN202011604410A CN112682866A CN 112682866 A CN112682866 A CN 112682866A CN 202011604410 A CN202011604410 A CN 202011604410A CN 112682866 A CN112682866 A CN 112682866A
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Abstract
The invention provides an air conditioning unit and a control method thereof. The air conditioning unit comprises a shell, wherein an air inlet and an air outlet are formed in the shell, and an airflow channel is formed between the air inlet and the air outlet; a filtering mechanism; the air inlet section is also provided with an air outlet. According to the air conditioning unit and the control method thereof provided by the invention, the first fan and the bypass pipeline are arranged, so that gas can reversely pass through the filtering mechanism to realize the purpose of cleaning the filtering mechanism, and the air valve assemblies are arranged to be matched with the fan to adjust the gas flow path of the air conditioning unit, so that the reliable cleaning of the filtering mechanism is ensured, the service life of the filter is prolonged, and the times of replacing the filter are reduced, so that the use cost is reduced, the labor cost is saved.
Description
Technical Field
The invention relates to the technical field of air treatment equipment, in particular to an air conditioning unit and a control method thereof.
Background
With the progress of society and the development of science and technology, the current society puts forward higher requirements on the self-cleaning function of the combined air conditioning unit, while the filter in the traditional combined air conditioning unit is filled with dust and the filtering efficiency is obviously reduced along with the prolonging of time, and the filter needs to be replaced frequently to ensure the filtering effect, so that the cost is higher and the labor cost is high.
Disclosure of Invention
In order to solve the technical problem that a filter in an air conditioning unit is inconvenient to clean in the prior art, the air conditioning unit and the control method thereof are provided, wherein the service life of a filtering mechanism can be prolonged, and the frequency of replacing the filtering mechanism is reduced.
An air conditioning assembly comprising:
the air conditioner comprises a shell, a fan and a control device, wherein an air inlet and an air outlet are arranged on the shell, and an air flow channel is formed between the air inlet and the air outlet;
the filtering mechanism is arranged in the airflow channel, and an air inlet section is formed between the filtering mechanism and the air inlet;
the air inlet section is provided with an air outlet, the first fan is arranged at the air outlet, and the first fan can enable air to sequentially pass through the filtering mechanism, the air inlet section and the air outlet and then flow out of the shell.
The air conditioning unit further includes:
the heat exchange mechanism is arranged between the filtering mechanism and the air outlet and divides the airflow channel into an air inlet section, a middle section and a fan section along the direction from the air inlet to the air outlet;
a first end of the bypass pipeline is communicated with the fan section, and a second end of the bypass pipeline is communicated with the middle section;
the first fan can enable gas to sequentially pass through the fan section, the bypass pipeline, the middle section, the filtering mechanism, the air inlet section and the air outlet and then flow out of the shell.
The air conditioning unit further comprises a collecting mechanism, the collecting mechanism is arranged at the air outlet, and the air outlet of the first fan enters the collecting mechanism.
The collecting mechanism comprises a cloth bag dust removing mechanism.
The air conditioning unit further comprises a connecting piece, and the bypass pipeline is communicated with the interior of the shell through the connecting piece.
The material of the connecting piece comprises canvas.
The air conditioning unit further comprises a second fan, the second fan is arranged in the fan section, and the second fan can enable gas to sequentially pass through the air inlet, the air inlet section, the filtering mechanism, the middle section, the heat exchange mechanism, the fan section and the air outlet and then be discharged out of the shell.
The air conditioning unit further comprises a first air valve assembly, the first air valve assembly is arranged on the bypass pipeline, and the first air valve assembly is in an opening state enabling the bypass pipeline to be communicated with the middle section and in a closing state enabling the bypass pipeline to be disconnected with the middle section.
The air conditioning unit further comprises a second air valve component, the first air valve component is arranged at the first end of the bypass pipeline, the second air valve component is arranged at the second end of the bypass pipeline, when the first air valve component is in an opening state, the second air valve component is in an opening state, and when the first air valve component is in a closing state, the second air valve component is in a closing state.
The air conditioning unit further comprises a third air valve assembly, the third air valve assembly is arranged on the evaporation section, and the third air valve is in an opening state enabling air to directly flow to the fan section from the middle section through the heat exchange mechanism and in a closing state enabling air to only flow to the middle section from the fan section through the bypass pipeline.
The air conditioning unit further comprises a fourth air valve assembly, the fourth air valve assembly is arranged at the air inlet, and the fourth air valve assembly is provided with an opening state for opening the air inlet and a closing state for closing the air inlet.
The air conditioning unit further comprises a fifth air valve assembly, the fifth air valve assembly is arranged at the air outlet, and the fifth air valve assembly is provided with an opening state for opening the air outlet and a closing state for closing the air outlet.
The first fan comprises an EC fan.
The air conditioning unit further comprises a pressure difference detection mechanism, and the pressure difference detection mechanism is electrically connected with the first fan.
The control method of the air conditioning unit further includes:
the heat exchange mechanism is arranged between the filtering mechanism and the air outlet and divides the airflow channel into an air inlet section, a middle section and a fan section along the direction from the air inlet to the air outlet;
a first end of the bypass pipeline is communicated with the fan section, and a second end of the bypass pipeline is communicated with the middle section;
the first fan can enable gas to flow out of the shell after sequentially passing through the fan section, the bypass pipeline, the middle section, the filtering mechanism, the air inlet section and the air outlet;
the second fan is arranged in the fan section and can enable gas to sequentially pass through the air inlet, the air inlet section, the filtering mechanism, the middle section, the heat exchange mechanism, the fan section and the air outlet and then be discharged out of the shell;
the first air valve assembly is arranged on the bypass pipeline and has an opening state for enabling the bypass pipeline to be communicated with the middle section and a closing state for enabling the bypass pipeline to be disconnected from the middle section;
the air conditioning unit further comprises a second air valve component, the first air valve component is arranged at the first end of the bypass pipeline, the second air valve component is arranged at the second end of the bypass pipeline, when the first air valve component is in an opening state, the second air valve component is in an opening state, and when the first air valve component is in a closing state, the second air valve component is in a closing state;
the third air valve assembly is arranged on the evaporation section, and the third air valve has an open state which enables gas to directly flow from the middle section to the fan section through the heat exchange mechanism and a closed state which enables gas to only flow from the fan section to the middle section through the bypass pipeline;
the fourth air valve assembly is arranged at the air inlet and has an opening state for opening the air inlet and a closing state for closing the air inlet;
the fifth air valve component is arranged at the air outlet and has an opening state for opening the air outlet and a closing state for closing the air outlet;
the pressure difference detection mechanism is electrically connected with the first fan, the first air valve assembly, the second air valve assembly, the third air valve assembly, the fourth air valve assembly and the fifth air valve assembly;
the air conditioning unit has an air treatment mode and a filter mechanism cleaning mode:
in the air treatment mode, the second fan is in a working state, the first fan is in a stop state, the third air valve assembly and the fourth air valve assembly are in an open state, and the first air valve assembly, the second air valve assembly and the fifth air valve assembly are in a closed state;
in the cleaning mode of the filtering mechanism, the first fan is in a working state, the second fan is in a stop state, the first air valve assembly, the second air valve assembly and the fifth air valve assembly are all in an open state, and the third air valve assembly and the fourth air valve assembly are all in a closed state.
The control method further comprises the following steps:
presetting a first set value;
acquiring a differential pressure value of the filtering mechanism, and comparing the differential pressure value with a first set value;
and if the differential pressure value is greater than or equal to the first set value, the air conditioning unit is switched to the cleaning mode of the filtering mechanism.
According to the air conditioning unit and the control method thereof provided by the invention, the first fan and the bypass pipeline are arranged, so that gas can reversely pass through the filtering mechanism to realize the purpose of cleaning the filtering mechanism, and the air valve assemblies are arranged to be matched with the fan to adjust the gas flow path of the air conditioning unit, so that the reliable cleaning of the filtering mechanism is ensured, the service life of the filter is prolonged, and the times of replacing the filter are reduced, so that the use cost is reduced, the labor cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioning unit according to an embodiment of the air conditioning unit and a control method thereof provided by the invention;
in the figure:
1. a housing; 11. an air inlet; 12. an air outlet; 2. a filtering mechanism; 13. an air inlet section; 3. a first fan; 4. a heat exchange mechanism; 14. a middle section; 15. a fan section; 5. a bypass line; 6. a collection mechanism; 7. a first air valve assembly; 8. a second air valve assembly; 9. a third air valve assembly; 101. a fourth air valve assembly; 102. a fifth damper assembly; 103. and a differential pressure detection mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The air conditioning assembly shown in fig. 1 comprises: the air conditioner comprises a shell 1, wherein an air inlet 11 and an air outlet 12 are arranged on the shell 1, and an air flow channel is formed between the air inlet 11 and the air outlet 12; the filtering mechanism 2 is arranged in the airflow channel, and an air inlet section 13 is formed between the filtering mechanism 2 and the air inlet 11; first fan 3, still be provided with the air exit on the air inlet section 13, first fan 3 set up in air exit department, just first fan 3 can make gas pass through in proper order filtering mechanism 2 air inlet section 13 with flow out behind the air exit casing 1, when needs are cleaned filtering mechanism 2, first fan 3 starts, locates to form the negative pressure in air inlet section 13 to make gaseous reverse process filtering mechanism 2, with the impurity on the filtering mechanism 2 along with the air current through the air exit discharge, accomplish the washing to filtering mechanism 2.
The air conditioning unit further includes: the heat exchange mechanism 4 is arranged between the filtering mechanism 2 and the air outlet 12, and the airflow channel is divided into an air inlet section 13, a middle section 14 and a fan section 15 by the heat exchange mechanism 4 and the filtering mechanism 2 along the direction from the air inlet 11 to the air outlet 12; a bypass line 5, a first end of the bypass line 5 being in communication with the fan section 15, a second end of the bypass line 5 being in communication with the intermediate section 14; first fan 3 can make gas pass through in proper order fan section 15 bypass pipeline 5 interlude 14 filter mechanism 2 air inlet section 13 with flow out behind the air exit casing 1 utilizes bypass pipeline 5 to carry out the short circuit with heat transfer mechanism 4 for when cleaning filter mechanism 2, gas can not pass through filter mechanism 2 and directly flows to interlude 14 by fan section 15, avoids the comdenstion water to persist on heat transfer mechanism 4 and is taken to filter mechanism 2 department by gas, causes the problem that the impurity caking on filter mechanism 2 pastes and can't reverse discharge.
The air conditioning unit further comprises a collecting mechanism 6, wherein the collecting mechanism 6 is arranged at the air outlet, the air outlet of the first fan 3 enters the collecting mechanism 6, impurities blown out of the air outlet are collected by the collecting mechanism 6, and secondary pollution is avoided.
The collecting mechanism 6 comprises a cloth bag dust removing mechanism and a dust removing device for collecting solid particles in dust-containing gas by utilizing a bag type filter element made of fiber woven materials, and the action principle of the dust removing device is that dust particles are intercepted due to the collision of inertial force and fibers when bypassing filter cloth fibers.
Air conditioning unit still includes the connecting piece, bypass pipeline 5 passes through the connecting piece with the inside intercommunication of casing 1, the material of connecting piece includes the canvas, utilizes connecting piece (especially canvas) to carry out the air inlet, avoids causing indoor production air current and influence user's experience by the air outlet 12 air inlet.
The air conditioning unit further comprises a second fan, the second fan is arranged in the fan section 15, the second fan enables gas to sequentially pass through the air inlet 11, the air inlet section 13, the filtering mechanism 2, the middle section 14, the heat exchange mechanism 4, the fan section 15 and the air outlet 12 and then is discharged from the shell 1, and the second fan enables air flow to sequentially pass through the filtering mechanism 2 and the heat exchange mechanism 4 and then is sent into the room to complete indoor fresh air supply and temperature regulation.
Air conditioning unit still includes first blast gate subassembly 7, first blast gate subassembly 7 set up in on the bypass line 5, just first blast gate subassembly 7 has the messenger bypass line 5 with the open mode of interlude 14 intercommunication makes bypass line 5 with the closed mode of interlude 14 disconnection utilizes first blast gate subassembly 7 control gas whether to get into bypass line 5, avoids gaseous not passing through heat exchange mechanism 4 and being discharged by air outlet 12.
Air conditioning unit still includes second air valve subassembly 8, first air valve subassembly 7 set up in bypass pipeline 5's first end, second air valve subassembly 8 set up in bypass pipeline 5's second end, and work as when first air valve subassembly 7 is in the open mode, second air valve subassembly 8 is in the open mode first air valve subassembly 7 is in the close mode, second air valve subassembly 8 is in the close mode, utilizes first air valve subassembly 7 and second air valve subassembly 8 all to control two tip of bypass pipeline 5, avoids gaseous entering or discharging by bypass pipeline 5's connecting piece department, and is preferred, first air valve subassembly 7 with second air valve subassembly 8 all sets up in casing 1.
The air conditioning unit also comprises a third air valve component 9, the third air valve component 9 is arranged on the evaporation section, and the third air valve has an open state which enables the gas to directly flow from the middle section 14 to the fan section 15 through the heat exchange mechanism 4 and a closed state which enables the gas to only flow from the fan section 15 to the middle section 14 through the bypass pipeline 5, and the third air valve component 9 is utilized to control whether the gas passes through the heat exchange mechanism 4 or not, so that when the gas heat exchange is required, gas can enter the fan section 15 through the heat exchange mechanism 4 and the third air valve assembly 9, and when the filter mechanism 2 needs to be cleaned, the third air valve assembly 9 can block the gas, thereby make gaseous can not pass through heat transfer mechanism 4, avoid the comdenstion water to persist on heat transfer mechanism 4 and be taken to filter mechanism 2 department by gas, cause the impurity caking on the filter mechanism 2 to paste and the unable reverse exhaust problem.
Air conditioning unit still includes fourth blast gate subassembly 101, fourth blast gate subassembly 101 set up in 11 departments of air intake, just fourth blast gate subassembly 101 has and opens the open mode of air intake 11 and closing the closed condition of air intake 11 utilizes fourth blast gate subassembly 101 to control air intake 11, when first fan 3 during operation, in order to guarantee that air inlet section 13 department produces the negative pressure, needs to close air intake 11 this moment, avoids locating the air inlet from air intake 11, and when air conditioning unit normally worked, air intake 11 opened and guarantees normal air inlet.
The air conditioning unit further comprises a fifth air valve assembly 102, the fifth air valve assembly 102 is arranged at the air outlet, the fifth air valve assembly 102 has an opening state for opening the air outlet and a closing state for closing the air outlet, and when the air conditioning unit normally works, gas enters the shell 1 from the air outlet and impurities in the collecting mechanism 6 are led to the filtering mechanism 2 again to cause secondary pollution of the filtering mechanism 2 by utilizing the fifth air valve assembly 102.
The first fan 3 comprises an EC fan, and the EC fan is a centrifugal fan adopting a digital brushless direct current outer rotor motor or a centrifugal fan adopting an EC motor.
The air conditioning unit further comprises a differential pressure detection mechanism, the differential pressure detection mechanism is electrically connected with the first fan 3, the differential pressure detection mechanism is used for obtaining the difference value of the gas pressures on the two sides of the filtering mechanism 2 and comparing the difference value with a preset value, when the difference value is larger than the preset value, the filtering mechanism 2 at the moment needs to be cleaned, the first fan 3, the first air valve assembly 7, the second air valve assembly 8 and the fifth air valve assembly 102 are started, the third air valve assembly 9 and the low-speed air valve assembly are closed, and therefore the filtering mechanism 2 is cleaned.
The control method of the air conditioning unit further includes:
the heat exchange mechanism 4 is arranged between the filtering mechanism 2 and the air outlet 12, and the airflow channel is divided into an air inlet section 13, a middle section 14 and a fan section 15 by the heat exchange mechanism 4 and the filtering mechanism 2 along the direction from the air inlet 11 to the air outlet 12;
a bypass line 5, a first end of the bypass line 5 being in communication with the fan section 15, a second end of the bypass line 5 being in communication with the intermediate section 14;
the first fan 3 can make the gas flow out of the shell 1 after passing through the fan section 15, the bypass pipeline 5, the middle section 14, the filtering mechanism 2, the air inlet section 13 and the air outlet in sequence;
the second fan is arranged in the fan section 15, and the second fan can enable gas to sequentially pass through the air inlet 11, the air inlet section 13, the filtering mechanism 2, the middle section 14, the heat exchange mechanism 4, the fan section 15 and the air outlet 12 and then be discharged out of the shell 1;
a first air valve assembly 7, wherein the first air valve assembly 7 is arranged on the bypass pipeline 5, and the first air valve assembly 7 has an opening state for communicating the bypass pipeline 5 with the middle section 14 and a closing state for disconnecting the bypass pipeline 5 from the middle section 14;
the air conditioning unit further comprises a second air valve assembly 8, the first air valve assembly 7 is arranged at the first end of the bypass pipeline 5, the second air valve assembly 8 is arranged at the second end of the bypass pipeline 5, when the first air valve assembly 7 is in an opening state, the second air valve assembly 8 is in an opening state, and when the first air valve assembly 7 is in a closing state, the second air valve assembly 8 is in a closing state;
a third air valve assembly 9, wherein the third air valve assembly 9 is arranged on the evaporation section, and the third air valve has an open state enabling air to flow from the intermediate section 14 to the fan section 15 directly through the heat exchange mechanism 4 and a closed state enabling air to flow from the fan section 15 to the intermediate section 14 only through the bypass pipeline 5;
the fourth air valve assembly 101, the fourth air valve assembly 101 is disposed at the air inlet 11, and the fourth air valve assembly 101 has an open state for opening the air inlet 11 and a closed state for closing the air inlet 11;
the fifth air valve assembly 102 is arranged at the air outlet, and the fifth air valve assembly 102 has an opening state for opening the air outlet and a closing state for closing the air outlet;
the pressure difference detection mechanism 103 is electrically connected with the first fan 3, the first air valve assembly 7, the second air valve assembly 8, the third air valve assembly 9, the fourth air valve assembly 101 and the fifth air valve assembly 102;
the air conditioning unit has an air treatment mode and a filter mechanism 2 cleaning mode:
in the air treatment mode, the second fan is in a working state, the first fan 3 is in a stopping state, the third air valve assembly 9 and the fourth air valve assembly 101 are in an opening state, and the first air valve assembly 7, the second air valve assembly 8 and the fifth air valve assembly 102 are in a closing state;
in the cleaning mode of the filter mechanism 2, the first fan 3 is in an operating state, the second fan is in a stopped state, the first air valve assembly 7, the second air valve assembly 8 and the fifth air valve assembly 102 are all in an open state, and the third air valve assembly 9 and the fourth air valve assembly 101 are all in a closed state.
The control method further comprises the following steps:
presetting a first set value;
acquiring a differential pressure value of the filter mechanism 2, and comparing the differential pressure value with a first set value;
if the differential pressure value is greater than or equal to the first set value, which indicates that the filtering mechanism 2 needs to be cleaned at the moment, the air conditioning unit is switched to the filtering mechanism 2 cleaning mode.
When the differential pressure value is smaller than the first set value, indicating that the filter mechanism 2 does not need to be cleaned at that time, the air conditioner group is switched to the air treatment mode.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (16)
1. An air conditioning unit, its characterized in that: the method comprises the following steps:
the air conditioner comprises a shell (1), wherein an air inlet (11) and an air outlet (12) are formed in the shell (1), and an air flow channel is formed between the air inlet (11) and the air outlet (12);
the filtering mechanism (2) is arranged in the airflow channel, and an air inlet section (13) is formed between the filtering mechanism (2) and the air inlet (11);
first fan (3), still be provided with the air exit on air inlet section (13), first fan (3) set up in air exit department, just first fan (3) can make gas pass through in proper order filtering mechanism (2) air inlet section (13) with flow out behind the air exit casing (1).
2. Air conditioning assembly according to claim 1, characterized in that: the air conditioning unit further includes:
the heat exchange mechanism (4) is arranged between the filtering mechanism (2) and the air outlet (12), and along the direction from the air inlet (11) to the air outlet (12), the heat exchange mechanism (4) and the filtering mechanism (2) divide the airflow channel into an air inlet section (13), a middle section (14) and a fan section (15);
a bypass line (5), a first end of the bypass line (5) being in communication with the fan section (15), a second end of the bypass line (5) being in communication with the intermediate section (14);
the first fan (3) can enable gas to sequentially pass through the fan section (15), the bypass pipeline (5), the middle section (14), the filtering mechanism (2), the air inlet section (13) and the air outlet and then flow out of the shell (1).
3. Air conditioning assembly according to claim 2, characterized in that: the air conditioning unit further comprises a collecting mechanism (6), the collecting mechanism (6) is arranged at the air outlet, and air outlet of the first fan (3) enters the collecting mechanism (6).
4. An air conditioning assembly according to claim 3, wherein: the collecting mechanism (6) comprises a cloth bag dust removing mechanism.
5. Air conditioning assembly according to claim 2, characterized in that: the air conditioning unit further comprises a connecting piece, and the bypass pipeline (5) is communicated with the interior of the shell (1) through the connecting piece.
6. Air conditioning assembly according to claim 5, characterized in that: the material of the connecting piece comprises canvas.
7. Air conditioning assembly according to claim 2, characterized in that: the air conditioning unit further comprises a second fan, wherein the second fan is arranged in the fan section (15), and the second fan can enable gas to sequentially pass through the air inlet (11), the air inlet section (13), the filtering mechanism (2), the middle section (14), the heat exchange mechanism (4), the fan section (15) and the air outlet (12) and then be discharged from the shell (1).
8. Air conditioning assembly according to claim 2, characterized in that: the air conditioning unit further comprises a first air valve assembly (7), the first air valve assembly (7) is arranged on the bypass pipeline (5), and the first air valve assembly (7) has an opening state enabling the bypass pipeline (5) to be communicated with the middle section (14) and a closing state enabling the bypass pipeline (5) to be disconnected with the middle section (14).
9. Air conditioning assembly according to claim 8, characterized in that: the air conditioning unit further comprises a second air valve component (8), the first air valve component (7) is arranged at the first end of the bypass pipeline (5), the second air valve component (8) is arranged at the second end of the bypass pipeline (5), when the first air valve component (7) is in an opening state, the second air valve component (8) is in an opening state, and when the first air valve component (7) is in a closing state, the second air valve component (8) is in a closing state.
10. Air conditioning assembly according to claim 2, characterized in that: the air conditioning unit further comprises a third air valve assembly (9), wherein the third air valve assembly (9) is arranged on the evaporation section, and the third air valve has an open state enabling air to flow from the middle section (14) to the fan section (15) directly through the heat exchange mechanism (4) and a closed state enabling air to flow from the fan section (15) to the middle section (14) only through the bypass pipeline (5).
11. Air conditioning assembly according to claim 2, characterized in that: the air conditioning unit further comprises a fourth air valve assembly (101), the fourth air valve assembly (101) is arranged at the air inlet (11), and the fourth air valve assembly (101) has an opening state for opening the air inlet (11) and a closing state for closing the air inlet (11).
12. Air conditioning assembly according to claim 2, characterized in that: the air conditioning unit further comprises a fifth air valve assembly (102), the fifth air valve assembly (102) is arranged at the air outlet, and the fifth air valve assembly (102) is provided with an opening state for opening the air outlet and a closing state for closing the air outlet.
13. Air conditioning assembly according to claim 1, characterized in that: the first fan (3) comprises an EC fan.
14. Air conditioning assembly according to claim 1, characterized in that: the air conditioning unit further comprises a pressure difference detection mechanism (103), and the pressure difference detection mechanism (103) is electrically connected with the first fan (3).
15. A control method of an air conditioning unit according to any one of claims 1 to 14, characterized in that: the air conditioning unit further includes:
the heat exchange mechanism (4) is arranged between the filtering mechanism (2) and the air outlet (12), and along the direction from the air inlet (11) to the air outlet (12), the heat exchange mechanism (4) and the filtering mechanism (2) divide the airflow channel into an air inlet section (13), a middle section (14) and a fan section (15);
a bypass line (5), a first end of the bypass line (5) being in communication with the fan section (15), a second end of the bypass line (5) being in communication with the intermediate section (14);
the first fan (3) can enable gas to flow out of the shell (1) after sequentially passing through the fan section (15), the bypass pipeline (5), the middle section (14), the filtering mechanism (2), the air inlet section (13) and the air outlet;
the second fan is arranged in the fan section (15), and the second fan can enable gas to sequentially pass through the air inlet (11), the air inlet section (13), the filtering mechanism (2), the middle section (14), the heat exchange mechanism (4), the fan section (15) and the air outlet (12) and then be discharged out of the shell (1);
a first air valve assembly (7), wherein the first air valve assembly (7) is arranged on the bypass pipeline (5), and the first air valve assembly (7) has an opening state for communicating the bypass pipeline (5) with the middle section (14) and a closing state for disconnecting the bypass pipeline (5) from the middle section (14);
the air conditioning unit further comprises a second air valve assembly (8), the first air valve assembly (7) is arranged at the first end of the bypass pipeline (5), the second air valve assembly (8) is arranged at the second end of the bypass pipeline (5), when the first air valve assembly (7) is in an opening state, the second air valve assembly (8) is in an opening state, and when the first air valve assembly (7) is in a closing state, the second air valve assembly (8) is in a closing state;
a third air valve assembly (9), wherein the third air valve assembly (9) is arranged on the evaporation section, and the third air valve has an open state enabling gas to flow from the middle section (14) to the fan section (15) directly through the heat exchange mechanism (4) and a closed state enabling gas to flow from the fan section (15) to the middle section (14) only through the bypass pipeline (5);
the fourth air valve assembly (101), the fourth air valve assembly (101) is arranged at the air inlet (11), and the fourth air valve assembly (101) has an opening state for opening the air inlet (11) and a closing state for closing the air inlet (11);
the fifth air valve component (102), the fifth air valve component (102) is arranged at the air outlet, the fifth air valve component (102) has an opening state for opening the air outlet and a closing state for closing the air outlet;
the pressure difference detection mechanism (103), the pressure difference detection mechanism (103) is electrically connected with the first fan (3), the first air valve component (7), the second air valve component (8), the third air valve component (9), the fourth air valve component (101) and the fifth air valve component (102);
the air conditioning unit has an air treatment mode and a filter mechanism (2) cleaning mode:
in the air treatment mode, the second fan is in a working state, the first fan (3) is in a stop state, the third air valve assembly (9) and the fourth air valve assembly (101) are in an open state, and the first air valve assembly (7), the second air valve assembly (8) and the fifth air valve assembly (102) are in a closed state;
in the cleaning mode of the filter mechanism (2), the first fan (3) is in a working state, the second fan is in a stopping state, the first air valve assembly (7), the second air valve assembly (8) and the fifth air valve assembly (102) are all in an opening state, and the third air valve assembly (9) and the fourth air valve assembly (101) are all in a closing state.
16. The control method according to claim 15, characterized in that: the control method further comprises the following steps:
presetting a first set value;
acquiring a differential pressure value of the filtering mechanism (2), and comparing the differential pressure value with a first set value;
and if the differential pressure value is greater than or equal to the first set value, the air conditioning unit is switched to the cleaning mode of the filtering mechanism.
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| CN202011604410.9A CN112682866B (en) | 2020-12-29 | 2020-12-29 | Air conditioning unit and control method thereof |
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| CN202011604410.9A CN112682866B (en) | 2020-12-29 | 2020-12-29 | Air conditioning unit and control method thereof |
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| CN111306642A (en) * | 2020-03-26 | 2020-06-19 | 珠海格力电器股份有限公司 | Air conditioning unit with reverse air outlet cleaning effect and control method |
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