CN111076603A - Self-cleaning device for outdoor heat exchanger of air conditioner, air conditioner and control method - Google Patents
Self-cleaning device for outdoor heat exchanger of air conditioner, air conditioner and control method Download PDFInfo
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- CN111076603A CN111076603A CN201911327977.3A CN201911327977A CN111076603A CN 111076603 A CN111076603 A CN 111076603A CN 201911327977 A CN201911327977 A CN 201911327977A CN 111076603 A CN111076603 A CN 111076603A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000005484 gravity Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 230000002301 combined effect Effects 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- F28G1/02—Non-rotary, e.g. reciprocated, appliances having brushes
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/89—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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F28G15/00—Details
- F28G15/003—Control arrangements
-
- 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
- F28G15/00—Details
- F28G15/04—Feeding and driving arrangements, e.g. power operation
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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
- F24F2110/20—Humidity
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
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- Engineering & Computer Science (AREA)
- 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)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention belongs to the field of air conditioning equipment, and particularly relates to a self-cleaning device for an outdoor heat exchanger of an air conditioner, which comprises: the driving module is provided with a magnetic element, and the magnetic element generates electromagnetic force in the power-on process of the driving module; the cleaning module is in driving connection with the driving module and moves up and down along the outer surface of the outdoor heat exchanger to implement cleaning operation; the control module controls the driving module to be periodically switched on/off in the self-cleaning process; in the self-cleaning process, when the driving module is powered on, the cleaning module moves upwards along the outer surface of the outdoor heat exchanger under the action of electromagnetic force generated by the magnetic element, and when the driving module is powered off, the cleaning module moves downwards along the outer surface of the outdoor heat exchanger under the combined action of the magnetic force of the magnetic element and the gravity of the cleaning module. The cleaning device adopts an electromagnetic driving mode, has low cost and small occupied space, and does not influence the air intake.
Description
Technical Field
The invention belongs to the field of air conditioning equipment, and particularly relates to a self-cleaning device for an outdoor heat exchanger of an air conditioner, the air conditioner and a control method.
Background
The outdoor unit of the air conditioner is installed outdoors at present, because the outdoor environment is relatively bad, and the outdoor unit of the air conditioner is always exposed outside without any protective measures, the condenser of the outdoor unit continuously accumulates dust due to long-time working operation, meanwhile, the dust cannot be cleaned in time, and when the accumulated dust is serious, the air inlet of the outdoor condenser can be blocked, so that the air volume is reduced, the service performance of a heat exchanger of the outdoor unit is influenced, and the service life of the compressor can also be reduced. In order to solve the problem of dust accumulation in the condenser, a filter screen is usually added to the outdoor unit. However, the filter screen is used for a long time, dust can be deposited to block the mesh of the filter screen, and the air intake of the condenser is affected, so the filter screen is usually required to be cleaned regularly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a cleaning device, an air conditioner and a control method capable of automatically cleaning an outdoor heat exchanger.
In order to solve the above technical problems, the present invention provides a self-cleaning device for an outdoor heat exchanger of an air conditioner, comprising:
the driving module is provided with a magnetic element, and the magnetic element generates electromagnetic force in the power-on process of the driving module;
the cleaning module is in driving connection with the driving module and moves up and down along the outer surface of the outdoor heat exchanger to implement cleaning operation;
the control module controls the drive module to be periodically switched on/off in the self-cleaning process;
in the self-cleaning process, when the driving module is powered on, the cleaning module moves upwards along the outer surface of the outdoor heat exchanger under the action of electromagnetic force generated by the magnetic element, and when the driving module is powered off, the cleaning module moves downwards along the outer surface of the outdoor heat exchanger under the combined action of the magnetic force of the magnetic element and the gravity of the cleaning module.
Further preferably, the driving module comprises a driving box, the driving box comprises a sliding groove arranged in parallel to the direction of the fins of the outdoor heat exchanger, a sliding strip located in the sliding groove and a sliding block in sliding connection with the sliding groove, the cleaning module is connected with the sliding block, the magnetic elements are magnetic strips which are continuously or uniformly distributed in the inner grooves on the two sides of the sliding groove at intervals, and the control module controls the sliding strip to be periodically switched on/off in the self-cleaning process.
Further preferably, a clamping groove is formed in the sliding block, a ball is arranged in the clamping groove, the connecting end, connected with the sliding block, of the cleaning module is matched with the shape of the clamping groove, and when the cleaning module is connected to the sliding block, the connecting end stretches into the clamping groove and freely rotates in the clamping groove under the action of the ball.
Further preferably, the top of the sliding chute is provided with a through hole and a top cover plate for opening and closing the through hole, the bottom of the sliding chute is further provided with a limiting hole, the sliding block is provided with a guide hole for the sliding strip to pass through, the sliding strip enters the sliding chute through the through hole and then passes through the guide hole in the sliding block and then is limited in the limiting hole, the control module is connected with the top cover plate through a connecting wire, and the top cover plate is connected with the sliding strip after covering the through hole.
Further preferably, a top cover plate magnetic strip is arranged on the inner side of the top cover plate, a closed magnetic strip is arranged at the top of the sliding groove, the top cover plate magnetic strip is opposite to the magnetic pole of the closed magnetic strip, and the top cover plate is attracted to the top of the sliding groove when the top cover plate covers the through hole.
Preferably, any side wall of the sliding groove is provided with a mounting port and a rear cover plate for sealing the mounting port, the lower part of the mounting port is provided with a wire outlet communicated with the mounting port, the lower part of the rear cover plate is provided with a notch matched with the wire outlet, and a connecting wire mounted on the top cover plate is led out through the wire outlet and then connected with the control module.
Further preferably, one side of the sliding groove, which is in contact with the outdoor heat exchanger, is provided with a positioning groove, a detachable movable clamping pin is arranged in the positioning groove, and the sliding groove is fixed on the outer surface of the outdoor heat exchanger through the movable clamping pin.
Further preferably, the driving module comprises driving boxes arranged on two sides of the same outer surface of the outdoor heat exchanger, the cleaning module is a cleaning brush with a certain length, and two ends of the cleaning brush are respectively connected with the sliding blocks of the two driving boxes and are arranged close to the outer surface of the outdoor heat exchanger.
Further preferably, the self-cleaning device further comprises a humidity monitoring module, and the humidity monitoring module is located on the outer side of any one of the chutes and is used for monitoring the humidity of the surrounding environment.
The invention also provides an air conditioner which comprises an outdoor heat exchanger, wherein the cleaning device is arranged on the outer surface of one side of the outdoor heat exchanger or on the outer surfaces of two opposite sides.
The invention also provides a control method, wherein the air conditioner controls the driving module to be periodically switched on/off in the self-cleaning process, the cleaning module moves upwards along the outer surface of the outdoor heat exchanger under the action of the electromagnetic force generated by the magnetic element in the power-on process of the driving module, and the cleaning module moves downwards along the outer surface of the outdoor heat exchanger under the combined action of the magnetic force of the magnetic element and the self gravity in the power-off process of the driving module.
Further preferably, the time of controlling the power on of the slide bar is to ensure the slide block moves from the bottom end of the guide rail to the top end of the guide rail, and the time of controlling the power off of the slide bar is to ensure the slide block moves from the top end of the guide rail to the bottom end of the guide rail.
Further preferably, the self-cleaning device determines whether to clean the air conditioner outdoor heat exchanger according to the monitoring result of the humidity monitoring module.
Further preferably, when the monitoring result of the humidity monitoring module is greater than the preset humidity value, the control slider is periodically switched on/off, and the cleaning brush reciprocates on the surface of the heat exchanger to clean.
Further preferably, when the detection result of the humidity monitoring module is smaller than the preset humidity value, whether the cleaning of the air conditioner outdoor heat exchanger is performed or not is determined according to a control instruction of a user.
Further preferably, the air conditioner finishes cleaning after controlling the slide bar to be powered on/off for a first preset period in the self-cleaning process.
Further preferably, in the self-cleaning process of the air conditioner, when the environmental humidity value detected by the humidity monitoring module is smaller than a preset humidity value, the control slider is controlled to be powered on/off for a second preset period and then the cleaning is finished.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the self-cleaning device adopts an electromagnetic driving mode, has low cost and small occupied space, and does not influence the air inlet volume of the heat exchanger.
3. The brush of the self-cleaning device moves along the direction of the fins, so that the contact area of dust and impurities between the brush and the fins is increased, the cleaning effect of the heat exchanger is improved, and the flatness of the fins is effectively protected.
4. The double-sided cleaning device achieves the effect of double-sided cleaning by uniformly arranging the hairbrushes on the two sides of the heat exchanger, so that the heat exchanger is more comprehensively cleaned.
5. The cleaning device is additionally provided with the humidity monitoring module, and when the humidity reaches a set value, the cleaning device is automatically started, so that the automatic cleaning of the outdoor heat exchanger is realized.
6. The cleaning device adopts a clamping pin structure, and is convenient to install.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: is a front view of the air conditioner of the embodiment of the invention.
FIG. 2: which is a top view of an air conditioner of an embodiment of the present invention.
FIG. 3: is a front view of a drive cassette of an embodiment of the present invention.
FIG. 4: is a split view of the cleaning brush and the sliding block of the embodiment of the invention.
FIG. 5: is a side view of a drive cassette of an embodiment of the present invention.
FIG. 6: is an exploded view of an embodiment of the present invention.
FIG. 7: is a split view of the movable clamping pin and the sliding groove of the embodiment of the invention.
FIG. 8: is a control flow diagram of an embodiment of the present invention.
Wherein:
1. a heat exchanger; 11. a top cover;
2. a cleaning device; 21. a drive cartridge; 211. a chute; 2111. a top cover plate; 2112. a movable clamping pin; 2113. a rear cover plate; 2114. an outlet; 2115. positioning a groove; 2116. a through hole; 2117. A cover plate magnetic stripe; 2118. closing the magnetic strip; 2119. a limiting hole; 212. a slide bar; 213. a slider; 2131. a guide hole; 2132. a card slot; 22. cleaning the brush; 23. a control module; 24 connecting the wires.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present embodiment proposes an air conditioner, as shown in fig. 1 and 2, the air conditioner includes an outdoor heat exchanger 1, and the outdoor heat exchanger 1 is provided with a cleaning device for cleaning an outer surface of the outdoor heat exchanger 1, and the cleaning device is disposed on an outer surface of one side of the outdoor heat exchanger 1 or on outer surfaces of both sides of the outdoor heat exchanger 1. The cleaning device comprises a drive module, a cleaning module and a control module 23. The driving module is arranged on the outer surface of one side of the outdoor heat exchanger 1, a magnetic element is arranged on the driving module, and the magnetic element generates electromagnetic force in the electrifying process of the driving module; the cleaning module is connected with the driving module and is used for cleaning dust on the outer surface of the outdoor heat exchanger 1; the control module 23 controls the driving module to be periodically switched on/off in the self-cleaning process; in the self-cleaning process, when the driving module is powered on, the cleaning module moves upwards along the outer surface of the outdoor heat exchanger under the action of electromagnetic force generated by the magnetic element, and when the driving module is powered off, the cleaning module moves downwards along the outer surface of the outdoor heat exchanger under the combined action of the magnetic force of the magnetic element and the gravity of the cleaning module. The cleaning device adopts an electromagnetic driving mode, has low cost and small occupied space, and does not influence the air intake
As shown in fig. 1 and 2, the driving modules are a group of symmetrical structures, and include driving boxes 21 symmetrically disposed on two sides of the same outer surface of the outdoor heat exchanger 1, and the control module 23 is respectively connected to the two driving boxes 21, as shown in fig. 3. As shown in fig. 1 and 2, the cleaning module includes a cleaning brush 22 having a certain length, and the cleaning brush 22 is closely attached to the outer surface of the outdoor heat exchanger 1 and slidably coupled between two driving cartridges 21. As shown in the top view of the outdoor heat exchanger 1 shown in fig. 2, two cleaning devices are arranged on the outdoor heat exchanger 1, the outdoor heat exchanger 1 comprises a top cover, the two cleaning devices are arranged on two sides of the top cover, and the cleaning brushes 22 of the two cleaning devices are arranged in parallel to the top cover.
As shown in fig. 3 and 6, each driving box 21 includes a sliding groove 211 arranged in parallel to the fin direction of the outdoor heat exchanger 1, a sliding bar 212 located in the sliding groove 211, and a sliding block 213 slidably connected to the sliding groove 211, and both ends of the cleaning brush 22 are respectively connected to the two sliding blocks 213 of the two driving boxes 21. As shown in fig. 4, the slide block 213 is provided with a locking groove 2132, a ball (not shown) is disposed in the locking groove 2132, the connecting end of the cleaning brush 22 connected to the slide block 213 matches with the shape of the locking groove 2132, and when the cleaning brush 22 is connected to the slide block 213, the connecting end extends into the locking groove 2132 and freely rotates in the locking groove 2132 under the action of the ball. After the driving box 21 is installed and fixed, the cleaning brushes 22 are respectively clamped into the clamping grooves 2132 corresponding to the sliding blocks 213, the final assembly can be completed, the heat exchangers 1 with different length specifications only need to be replaced by the cleaning brushes 22 with corresponding lengths, and the installation, the maintenance and the replacement are convenient.
As shown in fig. 5-7, a through hole 2116 and a top cover plate 2111 for opening and closing the through hole 2116 are disposed at the top of the sliding slot 211, a top cover plate magnetic strip 2117 is disposed at the inner side of the top cover plate 2111, a closing magnetic strip 2118 is disposed at the top of the sliding slot 211, and the magnetic poles of the top cover plate magnetic strip 2117 and the closing magnetic strip 2118 are opposite. The control module 23 is connected with the top cover plate 2111 through a connecting wire 24, the bottom of the sliding groove 211 is further provided with a limiting hole 2119, and the sliding block 213 is provided with a guide hole 2131 for the sliding strip 212 to pass through. In the process of assembling the sliding block 213, the sliding strip 212 and the sliding groove 211, the sliding block 213 is placed in the sliding groove 211 in advance, the top cover of the sliding groove 211 is opened, the sliding strip 212 penetrates through a through hole 2116 at the top of the sliding groove 211, the sliding strip 212 enters the sliding groove 211 through the through hole 2116, penetrates through a guide hole 2131 in the sliding block 213 and then is inserted into a limiting hole 2119, the top cover plate is closed, and the magnetic strip 2117 of the top cover plate and the magnetic strip 2118 of the closing cover. According to the actual needs of customers, the user can select whether to install one group or only one group, and the method is flexible and convenient.
Any side wall of the sliding groove 211 is provided with a mounting opening and a rear cover plate 2113 for covering the mounting opening, the lower part of the mounting opening is provided with a wire outlet 2114 communicated with the mounting opening, the lower part of the rear cover plate 2113 is provided with a notch matched with the wire outlet 2114, and a connecting wire 24 mounted on the top cover plate 2111 is led out through the wire outlet 2114 and then connected with the control module 23. As shown in fig. 5 and 6, when the wiring is started, the rear cover plate 2113 of the chute 211 is opened, the connection wire 24 is inserted and led out along the reserved outlet 2114, and the rear cover plate 2113 is covered.
A positioning groove 2115 is formed in one side, which is in contact with the outdoor heat exchanger 1, of the sliding groove 211, a detachable movable clamping leg 2112 is arranged in the positioning groove 2115, and the sliding groove 211 is fixed on the outer surface of the outdoor heat exchanger 1 through the movable clamping leg 2112. The driving module is fixed on the surface of the heat exchanger 1 through the movable clamping feet 2112, and the heat exchangers 1 with different pipe diameters can select the movable clamping feet 2112 with different specifications and quantities. The driving box 21 is uniformly distributed on the side surface of the sliding groove 211, when the air conditioner needs to be used, the movable clamping feet 2112 with corresponding specifications are pressed on the extrusion buttons on the surface and placed in the positioning grooves 2115 of the sliding groove 211, the driving box 21 is arranged on the surfaces of the two sides of the heat exchanger 1 of the air conditioner external unit through the movable clamping feet 2112 in the embodiment, and the surface of the air conditioner heat exchanger 1 is cleaned through the cleaning hairbrush 22.
The magnetic elements are magnetic strips which are continuously or at intervals and uniformly distributed in the inner grooves on the two sides of the sliding groove 211, and because the sliding block 213 moves upwards along the sliding strip 212 in the sliding groove 211 due to electromagnetic force generated by the magnetic strips, the sliding block 213 has inertia in the moving process, and considering cost factors, the magnetic strips are preferably uniformly distributed in the inner grooves on the two sides of the sliding groove 211 at intervals. The control module 23 is connected with the slide bar 212 and controls the on/off state of the slide bar 212, the slide block 213 is also in the on/off state by contacting with the slide bar 212, and the slide block 213 reciprocates along the slide bar 212 by controlling the periodic on/off state of the slide bar 212 during the operation of the cleaning device, so as to drive the cleaning brush 22 to reciprocate along the outer surface of the outdoor heat exchanger 1. After the connecting line 24 of the top cover of the sliding groove 211 is connected with the driving board module, under the setting of a built-in program, the sliding block 213 is in a state of periodical power on and off by contacting the sliding strip 212, under the action of the magnetic poles at the two sides, the sliding block 213 reciprocates in the sliding groove 211 along the sliding strip 212, and the cleaning brush 22 reciprocates along the surface of the heat exchanger 1 under the driving of the sliding block 213. Meanwhile, as shown in fig. 4, under the action of the ball clamping groove 2132 of the sliding block 213, the cleaning brush 22 performs 360-degree free rotation motion, so as to achieve the purpose of cleaning the surface of the heat exchanger 1 in multiple layers. When the control module 23 controls the cleaning slide bar 212 to be in a power-on state, the sliding block 213 is also in a power-on state through contact with the slide bar 212, an electric field is generated around the sliding block 213 at the moment, in addition, under the action of a magnetic field generated by magnetic strips uniformly distributed at intervals on the inner side of the sliding groove 211, the sliding block 213 moves upwards along the slide bar 212, when the control module 23 controls the slide bar 212 to be powered off, the sliding block 213 is also in a power-off state, the sliding block 213 descends under the action of magnetic force and self gravity, therefore, the sliding block 213 reciprocates along the slide bar 212 through controlling the intermodulation periodic power-on/off, and the cleaning brush 22 reciprocates along the surface of the heat exchanger 1 under the driving of the sliding block 213, so that the.
On the basis of the above scheme, a further scheme is that the self-cleaning device further comprises a humidity monitoring module, the humidity monitoring module is arranged in the driving module to monitor the ambient environment humidity in real time, the control module 23 is respectively connected with the driving module and the humidity monitoring module, and the humidity monitoring module is positioned on the outer side of any sliding groove 211. The cleaning device of the embodiment determines whether to control the cleaning device to clean the outdoor heat exchanger 1 according to the detection result of the humidity monitoring module.
As shown in the control flow chart of fig. 8, when the humidity is higher than the set value, the driving module satisfies the self-starting condition by the path shown by the solid arrow in fig. 8, and the surface of the air conditioner 1 is cleaned more effectively by the cleaning brush 22 in the high humidity environment. The movable clamping feet 2112 on the driving box 21 are installed at positions for opening the holes in the field clamping grooves 2132 according to the size of the air-conditioning heat exchanger 1 of a user, and the installation and the use are convenient.
When the detection result is larger than the preset humidity value, the slide bar 212 is controlled to be periodically switched on/off, when the power is switched on, the slide block 213 enables the slide block 213 to move upwards along the slide bar 212 under the action of an electromagnetic field, and when the power is switched off, the slide block 213 moves downwards along the slide bar 212 under the action of gravity. And the power of the slide bar 212 is controlled to be applied for a time period to ensure that the slider 213 moves from the bottom end of the guide rail to the top end of the guide rail, and the power of the slide bar 212 is controlled to be applied for a time period to ensure that the slider 213 moves from the top end of the guide rail to the bottom end of the guide rail. This requires that the slider 213 rise to the top of the sliding groove 211 within a first predetermined time, i.e., the power-on time, and fall to the bottom of the sliding groove 211 within a second predetermined time, i.e., the power-off time of the slider 212, which are recorded in the control module 23. When the detected ambient humidity is smaller than the preset humidity value, the control module 23 controls the slide bar 212 to power off after the second preset period, stops cleaning the outdoor heat exchanger 1, and enters a standby state.
When the detection result of the humidity monitoring module is smaller than the preset humidity value, the path shown by the hollow arrow in fig. 8 controls the periodic power on/off of the slider 212 according to the control instruction of the user when the user has a need to clean the outdoor heat exchanger 1. One way is to send out control instructions through a remote controller of the air conditioner, the other way is to connect with an air conditioner network through a mobile terminal of a user, the APP on the mobile terminal is used for sending a control instruction, and the other way is that the user performs power-off and power-on operations on the air conditioner at the indoor side, that is, the plug of the indoor unit is unplugged and then plugged again, the driving module is switched on after being powered on again, the control slide bar 212 is periodically switched on/off, under the action of the magnetic field and the electric field generated by the magnetic strips distributed on the two sides of the sliding groove 211, the sliding block 213 moves to the top of the sliding bar 212 along the sliding bar 212, the control module 23 controls the sliding bar 212 to be powered off, under the action of gravity, the slide bar 212 is driven to move to the bottom of the range chute 211, and the process is circulated, when the movement reaches a first preset period number, the control module 23 controls the slide bar 212 to be powered off, stops cleaning the outdoor heat exchanger 1 and enters a standby state.
On the basis of the scheme, a further scheme is that a water storage tank is further arranged on the sliding groove and is connected with a spraying device, and after water in the water storage tank reaches a set water amount, the spraying device sprays the outer surface of the heat exchanger under the action of water pressure in the water storage tank. When the humidity monitoring device detects that the humidity value of the surrounding environment is smaller than the preset humidity value, if a user has a requirement for cleaning the outdoor heat exchanger, the spraying device is controlled to start to spray the heat exchanger, the humidity value of the outdoor heat exchanger is reduced at the moment, and when the detected humidity value is lower than the preset humidity value, the cleaning device is controlled to start to perform self-cleaning.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (17)
1. A self-cleaning apparatus for an outdoor heat exchanger of an air conditioner, comprising:
the driving module is provided with a magnetic element, and the magnetic element generates electromagnetic force in the power-on process of the driving module;
the cleaning module is in driving connection with the driving module and moves up and down along the outer surface of the outdoor heat exchanger to implement cleaning operation;
the control module controls the driving module to be periodically switched on/off in the self-cleaning process;
in the self-cleaning process, when the driving module is powered on, the cleaning module moves upwards along the outer surface of the outdoor heat exchanger under the action of electromagnetic force generated by the magnetic element, and when the driving module is powered off, the cleaning module moves downwards along the outer surface of the outdoor heat exchanger under the combined action of the magnetic force of the magnetic element and the gravity of the cleaning module.
2. The self-cleaning device of claim 1, wherein the driving module comprises a driving box, the driving box comprises a sliding groove arranged in parallel with the direction of the fins of the outdoor heat exchanger, a sliding bar positioned in the sliding groove and a sliding block slidably connected with the sliding groove, the cleaning module is connected with the sliding block, the magnetic elements are magnetic strips continuously or intermittently and uniformly distributed in the inner grooves on two sides of the sliding groove, and the control module controls the sliding bar to be periodically switched on/off during the self-cleaning process.
3. The self-cleaning device of claim 2, wherein the sliding block is provided with a slot, a ball is arranged in the slot, the connecting end of the cleaning module connected with the sliding block is matched with the shape of the slot, and when the cleaning module is connected to the sliding block, the connecting end extends into the slot and freely rotates in the slot under the action of the ball.
4. The self-cleaning device of claim 3, wherein the top of the sliding chute is provided with a through hole and a top cover plate for opening and closing the through hole, the bottom of the sliding chute is further provided with a limiting hole, the sliding block is provided with a guide hole for the sliding strip to pass through, the sliding strip enters the sliding chute through the through hole, passes through the guide hole on the sliding block and is limited in the limiting hole, the control module is connected with the top cover plate through a connecting wire, and is connected with the sliding strip after the top cover plate covers the through hole.
5. The self-cleaning apparatus of claim 4, wherein a top cover magnetic strip is provided on an inner side of the top cover, a closing magnetic strip is provided on a top of the chute, the top cover magnetic strip has a magnetic pole opposite to that of the closing magnetic strip, and the top cover is attracted to the top of the chute when the top cover covers the through hole.
6. The self-cleaning device of claim 5, wherein any side wall of the sliding chute is provided with a mounting opening and a rear cover plate for covering the mounting opening, a wire outlet communicated with the mounting opening is arranged at the lower part of the mounting opening, a notch matched with the wire outlet is arranged at the lower part of the rear cover plate, and the connecting wire mounted on the top cover plate is led out through the wire outlet and then connected with the control module.
7. The self-cleaning device of claim 6, wherein a positioning groove is formed on a side of the sliding groove, which contacts the outdoor heat exchanger, a detachable movable clamping pin is arranged in the positioning groove, and the sliding groove is fixed on the outer surface of the outdoor heat exchanger through the movable clamping pin.
8. The self-cleaning apparatus as claimed in any one of claims 2 to 7, wherein the driving module comprises driving cartridges disposed on both sides of the same outer surface of the outdoor heat exchanger, and the cleaning module is a cleaning brush having a certain length, and both ends of the cleaning brush are connected to the sliding blocks of the two driving cartridges, respectively, and are disposed to be closely attached to the outer surface of the outdoor heat exchanger.
9. A self-cleaning apparatus according to claim 8, further comprising a humidity monitoring module located outside of any one of the chutes for monitoring the humidity of the surrounding environment.
10. An air conditioner comprising a self-cleaning apparatus as claimed in any one of claims 1 to 9, wherein the air conditioner includes an outdoor heat exchanger, and the cleaning apparatus is provided on one outer surface of the outdoor heat exchanger or on opposite outer surfaces of both sides.
11. A control method for a self-cleaning device as claimed in any one of claims 1 to 9 or an air conditioner as claimed in claim 10, wherein the air conditioner is configured to control the driving module to be periodically turned on/off during self-cleaning, the cleaning module moves upward along the outer surface of the outdoor heat exchanger under the effect of the electromagnetic force generated by the magnetic element when the driving module is powered on, and the cleaning module moves downward along the outer surface of the outdoor heat exchanger under the combined effect of the magnetic force of the magnetic element and the gravity of the cleaning module when the driving module is powered off.
12. The control method of claim 11, wherein the slide is energized for a time to ensure the slider moves from the bottom end of the guide rail to the top end of the guide rail, and the slide is de-energized for a time to ensure the slider moves from the top end of the guide rail to the bottom end of the guide rail.
13. The control method of claim 12, wherein the self-cleaning device determines whether to clean the air conditioner outdoor heat exchanger according to the monitoring result of the humidity monitoring module.
14. The control method of claim 13, wherein when the monitoring result of the humidity monitoring module is greater than a preset humidity value, the control slider is periodically turned on/off, and the cleaning brush reciprocates on the surface of the heat exchanger to perform cleaning.
15. The control method of claim 13, wherein when the detection result of the humidity monitoring module is less than a preset humidity value, whether to clean the air conditioner outdoor heat exchanger is determined according to a control instruction of a user.
16. The control method as claimed in any one of claims 13 to 15, wherein the control slider is turned on/off for a first predetermined period during the self-cleaning process of the air conditioner to finish the cleaning.
17. The method as claimed in claim 14, wherein the step of controlling the slider to be turned on/off for a second predetermined period and then to end the cleaning process when the humidity value detected by the humidity monitoring module is less than the predetermined humidity value during the self-cleaning process of the air conditioner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911327977.3A CN111076603A (en) | 2019-12-20 | 2019-12-20 | Self-cleaning device for outdoor heat exchanger of air conditioner, air conditioner and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911327977.3A CN111076603A (en) | 2019-12-20 | 2019-12-20 | Self-cleaning device for outdoor heat exchanger of air conditioner, air conditioner and control method |
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| CN111076603A true CN111076603A (en) | 2020-04-28 |
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