CN112902376B - Dust removal device, air conditioner and dust removal method - Google Patents
Dust removal device, air conditioner and dust removal method Download PDFInfo
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- CN112902376B CN112902376B CN202110172589.3A CN202110172589A CN112902376B CN 112902376 B CN112902376 B CN 112902376B CN 202110172589 A CN202110172589 A CN 202110172589A CN 112902376 B CN112902376 B CN 112902376B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
- F28G1/166—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris from external surfaces of heat exchange conduits
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the technical field of dust removal, in particular to a dust removal device, an air conditioner and a dust removal method. The air conditioner includes the fan, heat exchanger and dust collector, dust collector includes the dust remover, the dust remover includes the dust removal main part, first piston and first elastic component, the dust removal main part is equipped with first cavity and blow vent and the jet orifice of communicating with first cavity, the blow vent is used for letting in outside gas, the jet orifice is used for the gaseous blowout in the first cavity, and the jet orifice sets up towards the heat exchanger, first piston is located first cavity, the one end and the first piston of first elastic component are connected, the other end and the inner wall connection of first cavity, and first piston can be at first cavity reciprocating motion. During dust removal, the receiver receives a dust removal command, and the judger judges whether the air conditioner meets a preset dust removal operation condition; the controller controls the fan to rotate reversely; the dust removing device removes dust on the surface of the heat exchanger of the air conditioner, and the receiver receives the dust removing command automatically when the air conditioner is started and/or stopped.
Description
Technical Field
The invention relates to the technical field of dust removal, in particular to a dust removal device, an air conditioner and a dust removal method.
Background
Along with the improvement of living standard of people, the air conditioner enters every family, and meets the requirements of refrigeration or heating of people. When the air conditioner operates, external air needs to be introduced through the fan, and in the long-term operation process, the external air is continuously sucked and attached to the surface of the heat exchanger, and the surface of the heat exchanger is subjected to long-term dust accumulation, so that the air quantity is reduced, the heat exchange effect is reduced, the service life of the air conditioner is influenced, and therefore, the dust on the surface of the heat exchanger is necessary to be timely cleaned.
When dust is removed, the fan is controlled to rotate reversely, and dust on the surface of the heat exchanger is cleaned through the dust removal device so as to reduce dust accumulation of the heat exchanger. However, the conventional dust removing device generally uses a brush to mechanically clean the heat exchanger fins or uses frosting and defrosting to clean the surfaces of the heat exchanger, which not only does not remove dust sufficiently, but also easily damages the heat exchanger fins, resulting in shortened service life of the air conditioner.
Disclosure of Invention
The main purposes of the invention are: the utility model provides a dust collector, air conditioner and dust removal method, aims at solving the problem that the dust collector of current air conditioner removes dust inadequately, easily damages the heat exchanger fin, leads to the life of air conditioner to shorten.
In order to achieve the technical problem, the invention provides a dust removal device which comprises a dust remover, wherein the dust remover comprises a dust removal main body, a first piston and a first elastic piece, the dust removal main body is provided with a first cavity, and a vent and a jet orifice which are communicated with the first cavity, the vent is used for introducing external gas, and the jet orifice is used for jetting the gas in the first cavity;
the first piston is located in the first cavity, one end of the first elastic piece is connected with the first piston, the other end of the first elastic piece is connected with the inner wall of the first cavity, and the first piston can reciprocate in the first cavity.
Alternatively, the moving direction of the first piston is perpendicular to the axial direction of the injection port.
Optionally, the dust remover further comprises an in-place detection sensor, the first piston can reciprocate between a first limit position and a second limit position in the first cavity, when the first elastic member is in a natural state, the first piston is located at the first limit position, and when the first piston moves to the second limit position, the in-place detection sensor can be triggered.
Optionally, the dust removal main body comprises a main body part and a gas nozzle which are connected, the main body part is provided with the first cavity and the vent, and the gas nozzle is provided with the jet orifice.
Alternatively, the plurality of gas nozzles may be sequentially arranged along a longitudinal direction of the body portion.
Optionally, the dust removing device includes a plurality of dust collectors and two fixing rods arranged at intervals, and the plurality of dust collectors are installed between the two fixing rods side by side.
Optionally, the dust remover is rotatably connected with the fixing rod, and a rotation axis of the dust remover is parallel to the length direction of the dust removing main body.
Optionally, the dust removing device further comprises a connecting rod and a motor, and the motor drives the plurality of dust removers to synchronously rotate through the connecting rod.
Optionally, the dust removing device further comprises a flow divider, wherein the flow divider is communicated with each dust remover through the air vent.
Optionally, the dust removing device further comprises a pressure accumulator, the pressure accumulator comprises a pressure accumulation shell, a second piston and a second elastic piece, the pressure accumulation shell is provided with a second cavity, the second piston is located in the second cavity, one end of the second elastic piece is connected with the second piston, the other end of the second elastic piece is connected with the inner wall of the second cavity, and the second piston can reciprocate in the second cavity;
the second cavity on one side of the second piston is communicated with the flow divider, and the second cavity on the other side of the second piston is provided with an opening communicated with the outside.
Optionally, the dust removing device further comprises:
the gas outlet end of the gas compressor is communicated with the opening through a gas outlet pipe, and the opening is communicated with the gas inlet end of the gas compressor through a gas return pipe;
the air outlet valve controls the on-off of the air outlet pipe, and the air return valve controls the on-off of the air return pipe.
The invention also provides an air conditioner which comprises a fan, a heat exchanger and the dust removal device, wherein the jet orifice of the dust removal device faces the heat exchanger.
In addition, the invention also provides a dust removal method, which is used for removing dust of the air conditioner, and the dust removal method comprises the following steps:
the receiver receives a dust removal command, and the judger judges whether the air conditioner meets a preset dust removal operation condition;
when the air conditioner meets the dust removal operation condition, starting a dust removal mode, and controlling the fan to rotate reversely by the controller; and
dedusting the surface of a heat exchanger of the air conditioner by a dedusting device;
wherein, the dust removal command received by the receiver is automatically received when the receiver is started up and/or stopped.
Optionally, the dust removing the surface of the heat exchanger of the air conditioner by the dust removing device includes: when the first piston is positioned at two extreme positions, the controller controls whether the vent is filled with external gas or not.
Optionally, the judging of whether the air conditioner satisfies the predetermined dust removal operation condition by the determiner includes: the judger judges the running state of the air conditioner and judges whether the shutdown time meets the requirement of starting dust removal.
The invention has the beneficial effects that: above-mentioned dust collector, during the dust removal, the outside gas gets into in the first cavity by the blow vent to promote first piston at the quick travel in the first cavity, the gas in the first cavity is spout by the jet, realizes the first deashing to heat exchanger surface dust, and first elastic component is in elastic deformation state this moment, then stops admitting air, and first elastic component reconversion, and drive first piston and move back fast in the first cavity, realize the deashing to the second time of heat exchanger surface dust, the dust removal is ended. Compare in current utilization brush carry out mechanical type clean or utilize frosting and change the frost and wash, this dust collector adopts the structural style that sprays the dust removal, not only removes dust effectively thoroughly, does not avoid damaging the heat exchanger fin with heat exchanger fin direct contact moreover, prolongs the life of air conditioner, and first piston reciprocating motion carries out the secondary deashing in addition, makes the dust removal more abundant, avoids heat exchanger surface dust accumulation.
According to the dust removal method, the dust removal command is received through the receiver, whether the air conditioner meets the preset dust removal operation condition is judged through the judging device, the dust removal mode can be started when the dust removal operation condition is met, at the moment, the fan is controlled to rotate reversely through the controller, airflow opposite to that in normal operation is formed, dust is prevented from entering again, the dust removal effect and the dust removal efficiency are optimized, the dust removal cost is reduced, and finally dust is removed from the surface of the heat exchanger of the air conditioner through the dust removal device. The receiver receives the dust removal command automatically when the air conditioner is started and stopped, namely the air conditioner automatically receives the dust removal command when the air conditioner is started and performs dust removal operation firstly, then the air conditioner starts to perform refrigeration or heating work, and also automatically receives the dust removal command and performs dust removal operation when the air conditioner is stopped, and finally the air conditioner is completely stopped.
Drawings
The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:
fig. 1 is a partial structural schematic view of an air conditioner of the present invention;
FIG. 2 is a schematic structural view of a dust removing device of the air conditioner of FIG. 1;
FIG. 3 is a schematic view showing the construction of a dust collector of the dust removing device of FIG. 2;
FIG. 4 is a schematic view of the construction of the duster of FIG. 3 from another perspective;
FIG. 5 is a cross-sectional view of the duster of FIG. 4;
FIG. 6 is a cross-sectional view from another perspective of the duster of FIG. 4;
FIG. 7 is a sectional view of a part of the construction of the dust removing device in FIG. 2;
wherein the correspondence between the reference numbers and the names of the components in fig. 1 to 7 is:
100. a dust removal device;
10. a dust remover; 11. a dust removal main body; 111. a main body portion; 1111. a first cavity; 1112. a vent; 112. a gas nozzle; 1121. an ejection port; 12. a first piston; 13. a first elastic member; 14. an in-place detection sensor;
20. fixing the rod;
30. a connecting rod;
40. a motor;
50. a flow divider;
60. an accumulator; 61. a pressure accumulation housing; 611. a second cavity; 62. a second piston; 63. a second elastic member;
70. a gas compressor;
81. an air outlet pipe; 82. an air outlet valve; 83. an air return pipe; 84. an air return valve; 85. a connecting pipe;
91. an air intake duct; 92. a one-way valve; 93. an exhaust pipe; 94. a control valve;
200. a fan;
300. a heat exchanger.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
An embodiment of the present invention provides an air conditioner, as shown in fig. 1, the air conditioner includes a dust removing device 100, a fan 200, and a heat exchanger 300, wherein the dust removing device 100 is disposed near the heat exchanger 300. As shown in fig. 3 to 6, the dust removing device 100 includes a dust removing device 10, the dust removing device 10 includes a dust removing body 11, a first piston 12, and a first elastic member 13, the dust removing body 11 is provided with a first cavity 1111, and a vent 1112 and an injection port 1121 which are communicated with the first cavity 1111, the vent 1112 is used for introducing external air, the injection port 1121 is used for injecting air in the first cavity 1111, the first piston 12 is located in the first cavity 1111, one end of the first elastic member 13 is connected to the first piston 12, the other end is connected to an inner wall of the first cavity 1111, and the first piston 12 can reciprocate in the first cavity 1111.
In the dust removing device 100, during dust removal, external air enters the first cavity 1111 through the air vent 1112, and pushes the first piston 12 to move quickly in the first cavity 1111, and air in the first cavity 1111 is ejected through the ejection port 1121, so that first dust removal on the surface dust of the heat exchanger 300 is realized, at this time, the first elastic part 13 is in an elastic deformation state, then air intake is stopped, the first elastic part 13 recovers to the original state, and drives the first piston 12 to move back quickly in the first cavity 1111, so that second dust removal on the surface dust of the heat exchanger 300 is realized, and dust removal is finished. Compare in current utilization brush carry out mechanical type clean or utilize frosting and change the frost and wash, this dust collector 100 adopts the structural style that sprays the dust removal, not only removes dust effectively thoroughly, does not avoid damaging heat exchanger 300 fin direct contact moreover, prolongs the life of air conditioner, and first piston 12 reciprocating motion carries out the secondary deashing in addition, makes the dust removal more abundant, avoids heat exchanger 300 surface dust accumulation.
It should be noted that the first piston 12 is located in the first cavity 1111 to divide the first cavity 1111 into two independent air cavities, the vent 1112 is communicated with one of the two independent air cavities, when the first piston 12 moves fast in the first cavity 1111, the air in the first cavity 1111 can be ejected from the ejection port 1121 by compressing the air in one of the independent air cavities, then the first piston 12 moves fast in the first cavity 1111 in a reverse direction under the pulling force of the first elastic member 13, and the air in the other independent air cavity is compressed, so that the air in the first cavity 1111 can be ejected from the ejection port 1121 for a second time, thereby completing the dust removal operation of the heat exchanger 300.
In the present embodiment, the moving direction of the first piston 12 is perpendicular to the axial direction of the injection port 1121. Therefore, in the process that the first piston 12 reciprocates in the first cavity 1111, the gas in the two gas cavities can be respectively pressurized conveniently, so that the compressed gas is sprayed to the surface of the heat exchanger 300 through the same spraying port 1121 to perform spraying and dust removal, thereby realizing twice spraying on the surface of the heat exchanger 300, achieving sufficient, powerful and thorough dust removal, and being simpler in overall structure setting.
In this embodiment, the dust collector 10 further comprises a position detecting sensor 14, the first piston 12 can reciprocate between a first limit position and a second limit position in the first cavity 1111, when the first elastic member 13 is in a natural state, the first piston 12 is located at the first limit position, and when the first piston 12 moves to the second limit position, the position detecting sensor 14 can be triggered, wherein the position detecting sensor 14 is preferably a pressure sensor. At the beginning of dust removal, the first piston 12 is located at the first limit position, external air enters the first cavity 1111 through the vent 1112, and pushes the first piston 12 to move rapidly from the first limit position to the second limit position, when the first piston 12 triggers the in-place detection sensor 14, air intake is stopped, the first elastic element 13 recovers to the original state, and drives the first piston 12 to move rapidly back in the first cavity 1111, and dust removal is finished. The position detecting sensor 14 is provided to detect whether the first piston 12 has moved to the second limit position, and at this time, the air intake from the air vent 1112 is stopped, and a pressure sensor is used to detect the tension of the first elastic member 13. In addition, in view of the overall structural arrangement, the first elastic member 13 and the in-position detection sensor 14 are disposed in two different air chambers, and the air vent 1112 is communicated with the air chamber where the first elastic member 13 is located.
In this embodiment, the dust removing body 11 includes a body 111 and a gas nozzle 112 connected to each other, the body 111 has a first cavity 1111 and a vent 1112, and the gas nozzle 112 has an ejection port 1121. That is, the dust removing body 11 of the present embodiment is formed by combining two parts, i.e., a main body 111 and a gas nozzle 112, the main body 111 is provided with a first cavity 1111 having a column shape, one end of the main body 111 is provided with a vent 1112 communicating with the first cavity 1111, and the gas nozzle 112 is provided with an injection port 1121 for injecting gas to remove dust. Wherein, gas nozzle 112 is the special-shaped gas nozzle, along spraying direction promptly, and the cross sectional area of injection orifice 1121 constantly reduces to compressed gas in first cavity 1111 sprays the heat exchanger 300 surface through special-shaped gas nozzle 112 with higher speed and sprays the dust removal, further makes the dust removal more powerful thoroughly, and is more abundant, extension air conditioner's life.
Further, in the present embodiment, a plurality of gas nozzles 112 are sequentially provided along the longitudinal direction of the main body 111. Therefore, during dust removal, in the process that the first piston 12 reciprocates and is pressurized in the first cavity 1111, gas in the first cavity 1111 can be sprayed out through the plurality of gas nozzles 112, so that the gas can be sprayed to the surface of the heat exchanger 300 more uniformly to remove dust, and the dust removal effect of the air conditioner is ensured.
In the present embodiment, as shown in fig. 2, the dust removing device 100 includes four dust collectors 10 and two fixing bars 20 arranged at intervals, and the four dust collectors 10 are installed between the two fixing bars 20 side by side in a vertical direction. Through setting up two dead levers 20, be convenient for install four dust removers 10, make and become an organic whole to remove dust to each position on heat exchanger 300 surface, further avoid having the dust to pile up the problem of scale deposit. Moreover, in the present embodiment, the injection port 1121 is disposed toward the heat exchanger 300 so that the gas in the first cavity 1111 can be injected right to the surface position of the heat exchanger 300, and the axial direction of the air port 1112 is perpendicular to the length direction of the fixing rod 20, thereby facilitating the air intake on one hand and the arrangement of the fixing rod 20 and the four dust collectors 10 in an integrated structure on the other hand. In addition, the dust remover 10 is provided with a chamfer at the position of the fixed rod 20, which is beautiful and easy to assemble.
Further, in the present embodiment, the dust catcher 10 is rotatably connected to the fixing lever 20 with the rotation axis parallel to the length direction of the dust catching body 11. Since the dust remover 10 is rotatably connected to the fixing rod 20, the dust remover 10 can be rotated relative to the fixing rod 20 to adjust the angle of the dust remover 10 relative to the fixing rod 20, so that thorough dust removal can be ensured by changing the spraying position of the spraying opening 1121.
Still further, in this embodiment, the dust removing device 100 further includes a connecting rod 30 and a motor 40, and the motor 40 drives the four dust removers 10 to rotate synchronously through the connecting rod 30. Through setting up connecting rod 30, can adopt a motor 40 drive connecting rod 30 to remove along vertical direction relative to dead lever 20, drive the rotation of four dust removers 10 simultaneously to the mode of sweeping the wind from top to bottom is realized, and is simpler and easier.
In this embodiment, the dust removing device 100 further comprises a flow divider 50, and the flow divider 50 communicates with each dust remover 10 through the air vent 1112. By arranging the flow divider 50, the external air can be divided by the flow divider 50 and then respectively enters the first cavities 1111 of the four dust collectors 10 through the four air vents 1112, so that each dust collector 10 can normally perform spraying work, and the full and thorough dust removal is further ensured.
In this embodiment, as shown in fig. 2 and 7, the dust removing device 100 further includes a pressure accumulator 60, the pressure accumulator 60 is similar to the dust remover 10, the pressure accumulator 60 includes a pressure accumulating shell 61, a second piston 62 and a second elastic member 63, the pressure accumulating shell 61 is provided with a second cavity 611, the second piston 62 is located in the second cavity 611, one end of the second elastic member 63 is connected with the second piston 62, the other end is connected with the inner wall of the second cavity 611, and the second piston 62 can reciprocate in the second cavity 611, when the second piston 62 is pushed to move from left to right, the first piston 12 moves from left to right, otherwise the first piston 12 and the second piston 62 move back under the action of the first elastic element 13 and the second elastic element 63, respectively, the second cavity 611 on one side of the second piston 62 is communicated with the flow divider 50 through the connecting pipe 85, and the second cavity 611 on the other side of the second piston 62 is provided with an opening for communicating with the outside. Through the arrangement of the pressure accumulator 60, the pressure accumulation of the external gas is effectively realized, and the external gas is sprayed out after being pressurized to perform more powerful and thorough dust removal.
Further, in this embodiment, the dust removing device 100 further includes a gas compressor 70, two openings for communicating with the outside are opened in the second cavity 611 located on the other side of the second piston 62, an air outlet end of the gas compressor 70 is communicated with one of the openings through an air outlet pipe 81, the other opening is communicated with an air inlet end of the gas compressor 70 through an air return pipe 83, the dust removing device 100 further includes an air outlet valve 82 and an air return valve 84, the air outlet valve 82 controls on-off of the air outlet pipe 81, the air return valve 84 controls on-off of the air return pipe 83, and the gas compressor 70 is preferably a compressor. In the present embodiment, the air inlet end of the gas compressor 70 is also communicated with the external air through the air suction pipe 91, the check valve 92 is provided between the air suction pipe 91 and the gas compressor 70, and the check valve 92 controls the external air to enter the gas compressor 70 only from the air suction pipe 91 but not to return to the air suction pipe 91. During dust removal, the gas compressor 70 is started, the gas outlet valve 82 is started, high-temperature and high-pressure refrigerant gas generated by the gas compressor 70 enters the pressure accumulator 60 through the gas outlet pipe 81, gas on the other side of the second piston 62 is divided through the connecting pipe 85 and the flow divider 50 and then enters the four dust collectors 10, the first piston 12 is pushed to rapidly move from the first limit position to the second limit position until the first piston 12 triggers the in-place detection sensor 14, the gas compressor 70 is closed, the gas outlet valve 82 is closed, the gas return valve 84 is opened, the first piston 12 rapidly moves back under the action of the tensile force of the first elastic element 13, the pressure in the pressure accumulator 60 is reduced, the second piston 62 rapidly moves back under the action of the tensile force of the second elastic element 63, and the refrigerant gas is pushed back to the gas compressor 70 through the gas return pipe 83. In addition, the gas outlet end of the gas compressor 70 is also communicated with external gas through a gas outlet pipe 93, a control valve 94 is arranged between the gas outlet pipe 93 and the gas compressor 70, and the control valve 94 is always in a closed state in the dust removal process, so that the refrigerant gas in the gas compressor 70 can only enter the second cavity 611 through the gas outlet pipe 81 and cannot be discharged through the gas outlet pipe 93.
In addition, another embodiment of the present invention further provides a dust removing method, wherein the dust removing method is used for removing dust from the air conditioner, and the dust removing method includes that a receiver receives a dust removing command, and a judger judges whether the air conditioner meets a preset dust removing operation condition; when the air conditioner meets the dust removal operation condition, starting a dust removal mode, and controlling the fan 200 to rotate reversely by the controller; and performing dust removal on the surface of the heat exchanger 300 of the air conditioner by using the dust removal device 100; the dust removal command received by the receiver is automatically received when the device is started and stopped.
According to the dust removing method, the dust removing command is received through the receiver, whether the air conditioner meets the preset dust removing operation condition is judged through the judger, the dust removing mode can be started when the dust removing operation condition is met, at the moment, the fan 200 is controlled to rotate reversely through the controller, airflow opposite to that in normal operation is formed, dust is prevented from entering again, the dust removing effect and the dust removing efficiency are optimized, the dust removing cost is reduced, and finally the dust removing device 100 is used for removing dust on the surface of the heat exchanger 300 of the air conditioner. The receiver receives the dust removal command automatically when the air conditioner is started and stopped, namely the air conditioner automatically receives the dust removal command when the air conditioner is started and performs dust removal operation firstly, then the air conditioner starts to perform cooling or heating work, and also automatically receives the dust removal command and performs dust removal operation when the air conditioner is stopped, and finally the air conditioner is completely stopped, so that redundant commands are not required to be given to the air conditioner, the dust removal operation can be performed automatically when the air conditioner is started and stopped, the automatic removal of attachments such as dust on the surface of the heat exchanger 300 is realized, the dust on the surface of the heat exchanger 300 is effectively prevented from being accumulated and scaled before and after the air conditioner is used, the normal use of the air conditioner is not influenced, in addition, the repeated starting and stopping of the gas compressor 70 are also avoided, the service life of the whole air conditioner is prolonged, and the comfort of the air conditioner can be kept for a long time.
In the present embodiment, the dust removing of the surface of the heat exchanger 300 of the air conditioner by the dust removing device 100 includes: when the first piston 12 moves to the second limit position, the controller controls the air compressor 70 of the air conditioner to stop running, and simultaneously the controller controls the air outlet valve 82 to be closed and the air return valve 84 to be opened. At the beginning of dust removal, the gas compressor 70 operates to generate high-temperature and high-pressure refrigerant gas, so that the first piston 12 moves to the second limit position in the first cavity 1111, and when the first piston 12 triggers the in-place detection sensor 14, the in-place detection sensor 14 can transmit a signal to the main control board, so that the controller controls the gas compressor 70 to stop operating.
In this embodiment, the judging whether the air conditioner satisfies the predetermined dust removal operation condition by the determiner includes: the judger judges the running state of the air conditioner and judges whether the shutdown time meets the requirement of starting dust removal. Specifically, when the air conditioner needs to be dedusted, the air conditioner receives a dedusting command, the state of the air conditioner is judged through the judger, if the air conditioner is in the running state, the controller controls the air conditioner to stop, and then the judger judges whether the stop time meets the requirement of starting dedusting; if the air conditioner is in a shutdown state, the judger directly judges whether the shutdown time meets the requirement of starting to remove dust. In addition, in this embodiment, still include the timer, time the down time through the timer, the down time satisfies the dust removal condition and starts the dust removal, otherwise the timer accumulatively times.
The dust removal method of the present invention is further described below: when the air conditioner is used, the air conditioner is powered on, the air conditioner is started, the receiver receives a dust removal command, the controller controls the fan 200 to rotate reversely, the control valve 94 is closed, the gas compressor 70 is opened, the check valve 92 controls that external gas can only enter the gas compressor 70 from the gas suction pipe 91, the gas outlet valve 82 is opened, high-temperature and high-pressure refrigerant gas generated by the gas compressor 70 enters the pressure accumulator 60 through the gas outlet pipe 81 and pushes the second piston 62 to compress gas on the other side, the gas rapidly passes through the connecting pipe 85 under the pressurization effect and enters the first cavities 1111 of the four dust collectors 10 after being divided by the flow divider 50, the pressurized gas pushes the first piston 12 to rapidly move to the second limit position, the gas in the first cavity 1111 is accelerated to be sprayed to the surface of the heat exchanger 300 through the gas nozzle 112 for dust removal, when the first piston 12 triggers the in-position detection sensor 14, the in-position detection sensor 14 transmits a signal to the main control board, the controller controls the gas compressor 70 to stop running, simultaneously controls the gas outlet valve 82 to be closed and the gas return valve 84 to be opened, the first piston 12 moves back rapidly under the action of the pulling force of the first elastic piece 13, the gas in the first cavity 1111 is sprayed onto the surface of the heat exchanger 300 for dust removal through the gas nozzle 112 in a secondary acceleration mode, the second piston 62 moves back rapidly under the action of the pulling force of the second elastic piece 63, the refrigerant gas is pushed back to the gas compressor 70 through the gas return pipe 83, the fan 200 stops reversing, and dust removal is finished. At this time, the gas compressor 70, the blower 200, and the like are normally started to operate, external air is sucked into the air conditioner through gaps between adjacent fins of the heat exchanger 300 due to a pressure difference, and the air flowing in and a refrigerant driven by the gas compressor 70 perform heat exchange in the heat exchanger 300, so that the air conditioner performs normal cooling or heating. After the air conditioner is used, the air conditioner is powered off to command shutdown, the receiver receives the dust removal command, the dust removal operation is repeated, and finally the air conditioner is completely shut down. This air conditioner all removes dust the operation around the work, removes dust fully, and heat exchanger 300 keeps clean at any time, avoids heat exchanger 300 surface dust to gather the scale deposit to when not influencing air conditioner normal operation and use, can get rid of attachments such as heat exchanger 300 surface dust voluntarily, keep air conditioner travelling comfort for a long time, improve air conditioner life.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (15)
1. A dust removing device characterized by comprising:
the dust remover (10) comprises a dust removing main body (11), a first piston (12) and a first elastic piece (13), wherein the dust removing main body (11) is provided with a first cavity (1111), and a vent hole (1112) and an injection hole (1121) which are communicated with the first cavity (1111), the vent hole (1112) is used for introducing external gas, the injection hole (1121) is used for injecting gas in the first cavity (1111), the first piston (12) is positioned in the first cavity (1111), one end of the first elastic piece (13) is connected with the first piston (12), the other end of the first elastic piece is connected with the inner wall of the first cavity (1111), and the first piston (12) can reciprocate in the first cavity (1111);
the pressure accumulator (60) comprises a pressure accumulation shell (61), a second piston (62) and a second elastic piece (63), the pressure accumulation shell (61) is provided with a second cavity (611), the second piston (62) is located in the second cavity (611), one end of the second elastic piece (63) is connected with the second piston (62), the other end of the second elastic piece is connected with the inner wall of the second cavity (611), the second piston (62) can reciprocate in the second cavity (611), the second cavity (611) located on one side of the second piston (62) is communicated with the air vent (1112) through a connecting pipe (85), and the second cavity (611) located on the other side of the second piston (62) is provided with two openings; and
and the gas outlet end of the gas compressor (70) is communicated with one of the openings through a gas outlet pipe (81), and the other opening is communicated with the gas inlet end of the gas compressor (70) through a gas return pipe (83).
2. The dust removing device according to claim 1, wherein a moving direction of the first piston (12) is perpendicular to an axial direction of the ejection port (1121).
3. A dust-removing apparatus according to claim 2, characterized in that the dust-remover (10) further comprises a reach-detecting sensor (14), the first piston (12) being reciprocally movable between a first extreme position and a second extreme position within the first chamber (1111), the first piston (12) being in the first extreme position when the first resilient member (13) is in a natural state, and the reach-detecting sensor (14) being triggerable when the first piston (12) is moved to the second extreme position.
4. The dust removing device according to any one of claims 1 to 3, wherein the dust removing body (11) comprises a main body portion (111) and a gas nozzle (112) connected, the main body portion (111) is provided with the first cavity (1111) and the vent (1112), and the gas nozzle (112) is provided with the jet port (1121).
5. The dust removing device according to claim 4, wherein a plurality of the gas nozzles (112) are provided in sequence along a longitudinal direction of the main body portion (111).
6. The dust removing apparatus according to claim 1, wherein the dust removing apparatus (100) comprises a plurality of the dust removers (10) and two fixing bars (20) arranged at intervals, and the plurality of the dust removers (10) are installed side by side between the two fixing bars (20).
7. The dusting device according to claim 6, characterized in that the duster (10) is rotatably connected with the fixed rod (20) with a rotation axis parallel to the length direction of the dusting body (11).
8. The dust removing device of claim 7, wherein the dust removing device (100) further comprises a connecting rod (30) and a motor (40), and the motor (40) drives a plurality of the dust removers (10) to rotate synchronously through the connecting rod (30).
9. The dusting device of anyone of claims 6 to 8, characterized in that the dusting device (100) further comprises a flow diverter (50), the flow diverter (50) communicating each first cavity (1111) through the air vent (1112).
10. The dusting device according to claim 9, characterized in that the second cavity (611) on the side of the second piston (62) communicates with the flow divider (50) through the connecting tube (85).
11. The dust removing device according to claim 10, wherein the dust removing device (100) further comprises an air outlet valve (82) and an air return valve (84), the air outlet valve (82) controls the air outlet pipe (81) to be opened and closed, and the air return valve (84) controls the air return pipe (83) to be opened and closed.
12. An air conditioner, characterized by comprising a fan (200), a heat exchanger (300) and the dust removing device (100) as claimed in any one of claims 1 to 11, wherein the injection port (1121) of the dust removing device (100) is disposed toward the heat exchanger (300).
13. A dust removing method by which the air conditioner of claim 12 is subjected to dust removal, the dust removing method comprising:
the receiver receives a dust removal command, and the judger judges whether the air conditioner meets a preset dust removal operation condition;
when the air conditioner meets the dust removal operation condition, a dust removal mode is started, and the controller controls the fan (200) to rotate reversely; and
dedusting the surface of a heat exchanger (300) of the air conditioner through a dedusting device (100);
wherein, the dust removal command received by the receiver is automatically received when the receiver is started up and/or stopped.
14. The dust removing method according to claim 13, wherein the removing dust on the surface of the heat exchanger (300) of the air conditioner by the dust removing device (100) comprises: when the first piston (12) is located at two extreme positions, the controller controls whether the vent (1112) is vented with external gas or not.
15. The dust removing method of claim 13, wherein the judging of whether the air conditioner satisfies a predetermined dust removing operation condition by the determiner comprises: the judger judges the running state of the air conditioner and judges whether the shutdown time meets the requirement of starting dust removal.
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