CN107514677B - Wall-mounted air conditioner indoor unit - Google Patents
Wall-mounted air conditioner indoor unit Download PDFInfo
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- CN107514677B CN107514677B CN201710571286.2A CN201710571286A CN107514677B CN 107514677 B CN107514677 B CN 107514677B CN 201710571286 A CN201710571286 A CN 201710571286A CN 107514677 B CN107514677 B CN 107514677B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
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- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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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
- F24F13/20—Casings or covers
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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
- F24F13/28—Arrangement or mounting of filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a wall-mounted air conditioner indoor unit, which comprises a housing, wherein an air inlet is formed at the top of the housing; a front panel disposed at a front portion of the housing; the air quality detection sensor is used for detecting the air quality of the environment where the indoor unit of the air conditioner is located; the air quality detection sensor is arranged on the shell and is configured to detect the air quality of the air, and the driving device is connected with the purification component and is configured to drive the purification component to switch between a purification mode and a non-purification mode according to the detection result of the air quality detection sensor. The expansion of the functions of the indoor unit of the air conditioner and the improvement of the air quality of the working environment of the indoor unit of the air conditioner are realized.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a wall-mounted air conditioner indoor unit.
Background
Air conditioners (Air conditioners for short) are electrical appliances for supplying treated Air directly to an enclosed space or area, and in the prior art, Air conditioners are generally used to condition the temperature of a work environment. Along with the higher and higher requirement of people on the environmental comfort level, the function of the air conditioner is also richer and richer.
Due to the increasing demand for air cleanliness, some solutions for providing a purifying device in an air conditioner to purify a portion of air entering the air conditioner have appeared, however, these air conditioners with purifying function have the following problems: because only part of air can be purified, the purification effect is poor; in addition, since the purification apparatus operates for a long time, even if the air is in a very clean condition, it remains in operation, so that the service life of the purification apparatus is reduced and secondary pollution is also easily caused.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a wall-mounted air conditioning indoor unit that overcomes or at least partially solves the above problems.
A further object of the present invention is to expand the functionality of the indoor unit of an air conditioner and to improve the air quality of the working environment of the indoor unit of an air conditioner.
The invention provides a wall-mounted air conditioner indoor unit, which comprises a housing, wherein an air inlet is formed at the top of the housing; a front panel disposed at a front portion of the housing; the air quality detection sensor is used for detecting the air quality of the environment where the indoor unit of the air conditioner is located; the air quality detection sensor is arranged on the shell and is used for detecting the air quality of the air; the purification assembly is configured to be driven by the driving device to move from the inner side of the front panel to the inner side of the air inlet in a purification mode and cover the air inlet so as to purify air flow entering the indoor unit; the purification assembly is configured to be driven by the driving device to move from the inner side of the air inlet to the inner side of the front panel in the non-purification mode so as to expose the air inlet, and therefore airflow directly enters the indoor unit without passing through the purification assembly.
Optionally, the air quality detection sensor is provided with an air inlet hole, and the air quality detection sensor is arranged at the transverse end part of the housing close to the air inlet, so that the air quality detection sensor is positioned in an induced air duct of the indoor unit, and indoor air can conveniently enter the air inlet hole; and the air inlet hole faces the environment of the indoor unit of the air conditioner.
Optionally, the wall-mounted air conditioner indoor unit further comprises an air inlet grille detachably arranged at the top of the housing, and the air inlet is formed in the air inlet grille; an accommodating part for accommodating an air quality detection sensor is formed at the position, located at the transverse end part of the housing, on the inner side of the air inlet grille, the air quality detection sensor is arranged in the accommodating part, and the air inlet hole is arranged towards the air inlet grille; and the air-inlet grille is provided with an opening which is communicated with the air inlet hole or exposes the air inlet hole so as to facilitate the indoor air to enter the air quality detection sensor.
Optionally, the wall-mounted air conditioner indoor unit further comprises a display screen, which is arranged on the front side of the front panel, electrically connected with the air quality detection sensor, and used for displaying the air quality detected by the air quality detection sensor.
Optionally, each driving device comprises a motor, a gear connected with an output shaft of the motor, an arc-shaped rack engaged with the gear, a guide rail assembly and a connecting rod, wherein a first end of the connecting rod is rotatably connected with the arc-shaped rack, and the connecting rod is driven by the arc-shaped rack to be rotatably and slidably arranged; and the purification component is rotationally connected with the second end of the connecting rod and is driven by the connecting rod to be rotationally and slidably matched with the guide rail component so as to be switched between a purification mode and a non-purification mode by the driving of the connecting rod.
Optionally, the rail assembly comprises: the base is arranged at the frame of the transverse side end of the housing; the side cover is buckled on one surface of the base, which is far away from the transverse side end of the housing, and defines a space for accommodating the gear, the arc-shaped rack and the connecting rod with the base; an output shaft of the motor penetrates through the base and is connected with the gear; and one side of the side cover, which is far away from the base, is provided with a guide rail matched with the motion track of the purification assembly, and the purification assembly is driven by the connecting rod to move along the guide rail.
Optionally, an arc-shaped groove is formed on one surface of the base facing the side cover; at least one roller is arranged on one side of the arc-shaped rack close to the base, and the roller is accommodated in the arc-shaped groove and is in sliding contact with the arc-shaped groove; the arc rack is driven by the motor through the gear to slide along the arc groove.
Optionally, the guide rail is formed by connecting a first curved section and a second curved section which is different from the first curved section in bending degree, the first curved section is positioned at a position corresponding to the air inlet on the frame of the transverse side end of the housing, and the second curved section extends to the inner side of the front panel from the front lower part to the front lower part; and the second curved section is positioned on the outer side of the arc-shaped groove, so that the movement path of the purification assembly is positioned on the outer side of the arc-shaped groove, and the inner space of the indoor unit can be saved.
Optionally, the purification assembly comprises: the purification module is used for purifying airflow entering the indoor unit of the air conditioner; the bracket comprises at least one connecting part, the first end of the connecting part is rotatably connected with the second end of the connecting rod, and the second end of the connecting part is in sliding fit with the guide rail; and connecting portion have seted up first draw-in groove, first draw-in groove and purification module's horizontal tip joint to install purification module on the bracket.
Optionally, the number of the driving devices is two, and the two driving devices are respectively arranged at the frames at the two lateral sides of the housing and are arranged oppositely.
According to the wall-mounted air conditioner indoor unit, the driving device can drive the purification assembly to be switched between the purification mode and the non-purification mode according to the detection result of the air quality detection sensor, the purification assembly is driven by the driving device to move from the inner side of the front panel to the inner side of the air inlet in the purification mode and cover the air inlet, so that air flow entering the indoor unit is purified, and the air quality of the surrounding environment is improved; the purification component is driven by the driving device to move from the inner side of the air inlet to the inner side of the front panel in a non-purification mode, and the air inlet is exposed, so that air flow directly enters the indoor unit without passing through the purification component. Therefore, the indoor unit of the air conditioner can start or close the purification function according to the detection result of the air quality detection sensor, and the expansion and the use flexibility of the functions of the air conditioner are realized.
Furthermore, in the wall-mounted air conditioner indoor unit, the driving device is exquisite in overall structural design and compact in structure, the internal space of the indoor unit occupied by the driving device is reduced, and the driving device is convenient to arrange in the indoor unit with a narrow space.
Furthermore, in the wall-mounted air conditioner indoor unit, the guide rail is formed by connecting the first curved section and the second curved section with different bending degrees from the first curved section, so that the guide rail with an irregular shape is formed, the second curved section with a lower position is positioned on the outer side of the arc-shaped groove, the gear drives the arc-shaped rack to slide in the arc-shaped groove, the arc-shaped rack is connected with the purification assembly through the connecting rod, the purification assembly is driven by the connecting rod to be matched with the guide rail with the irregular shape to move, and the movement path of the purification assembly is positioned on the outer side of the arc-shaped groove, so that the internal space of the indoor unit can be saved, the arrangement of a heat exchanger and a fan of.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention, in which a grill is hidden;
fig. 3 is a partial schematic structural view of a casing of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an air quality detecting sensor of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;
fig. 5 is a partial schematic structural view of an air inlet grill of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a front panel, an air quality detecting sensor, and a control board of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention, in which a purification assembly is in a purification mode;
fig. 8 is a schematic structural view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention, in which a purification assembly is in a non-purification mode;
fig. 9 is a schematic cross-sectional view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention, in which a cleaning assembly is in a non-cleaning mode;
fig. 10 is a combined schematic structural view of a driving apparatus and a cleaning assembly of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;
FIG. 11 is an exploded view of FIG. 10;
FIG. 12 is a schematic structural view of the driving apparatus in FIG. 11;
fig. 13 is a sectional view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;
fig. 14 is a schematic view of a heat exchanger of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention;
fig. 15 is a schematic front view of a liquid distribution adjusting device of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention; and
fig. 16 is a schematic cross-sectional view of a portion adjusting device of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention.
Detailed Description
In the present embodiment, a wall-mounted type air conditioning indoor unit 100 is provided, fig. 1 is a schematic structural view of the wall-mounted type air conditioning indoor unit 100 according to an embodiment of the present invention, fig. 2 is a schematic structural view of the wall-mounted type air conditioning indoor unit 100 according to an embodiment of the present invention, in which a grill 122 is hidden, fig. 3 is a partial schematic structural view of a casing 120 of the wall-mounted type air conditioning indoor unit 100 according to an embodiment of the present invention, fig. 4 is a schematic structural view of an air quality detection sensor 200 of the wall-mounted type air conditioning indoor unit 100 according to an embodiment of the present invention, and fig. 5 is a partial schematic structural view of the grill 122 of the wall-mounted type air conditioning indoor unit 100 according to an.
Referring to fig. 1 and 2, a wall-mounted indoor unit 100 generally includes a cabinet, an indoor unit heat exchanger disposed in the cabinet, and an indoor unit fan disposed below the indoor unit heat exchanger. Specifically, the cabinet may include a frame 110 for supporting the indoor unit blower and the indoor unit heat exchanger, a cover case 120 covering the frame 110, a front panel 130 connected to a front side of the cover case 120 for constituting a front portion of the cabinet, and two end caps 123 respectively disposed at both lateral sides of the cabinet. The housing 120 has an intake vent 121 at its top and an exhaust vent 124 at its bottom. The indoor unit heat exchanger case is configured to exchange heat with air flowing therethrough to change the temperature of the air flowing therethrough into heat-exchanged air. The indoor unit fan may be configured to cause a portion of indoor air (air of the ambient environment in which the indoor unit 100 is located) entering from the air inlet 121 to flow toward the indoor unit heat exchanger, and to cause heat-exchanged air heat-exchanged by the indoor unit heat exchanger to flow toward the air outlet 124 via the indoor unit fan.
In particular, the indoor unit 100 may further include an air quality detection sensor 200, and the air quality detection sensor 200 is used to detect indoor air quality, for example, it may detect carbon dioxide concentration, PM2.5 concentration, dust concentration, and the like in the air. Alternatively, the air quality detecting sensor 200 is a dust sensor, and the dust sensor operates on the principle of detecting the concentration of dust in the indoor air through a light source and a lens. The air quality detecting sensor has an air inlet 202, for improving the detecting accuracy of the air quality detecting sensor, the indoor air should pass through the air inlet 202 at a certain speed, for example, more than 0.3 m/s, for this reason, the air quality detecting sensor 200 can be disposed at a well-ventilated position, for example, on an air-guiding duct of the indoor unit 100, specifically, the air quality detecting sensor 200 can be disposed at a position close to the air inlet 121 at the transverse end of the casing 120, the air inlet 202 of the air quality detecting sensor 200 faces the indoor environment, under the action of the indoor unit fan, the air speed of the area where the air quality detecting sensor 200 disposed close to the air inlet 121 is located is relatively high, and the detecting accuracy of the air quality detecting sensor 200 can be ensured.
In some alternative embodiments, as shown in fig. 3, the lateral end of the casing 120 near the air inlet 121 may be formed with a receiving portion for receiving the air quality detecting sensor 200, and the air quality detecting sensor 200 is disposed in the receiving portion, so that the air quality detecting sensor 200 is located at the air inlet duct of the indoor unit 100, thereby ensuring that the indoor air enters the air inlet hole 202 of the air quality detecting sensor 200 at a certain speed, and preventing the air quality detecting sensor 200 from protruding outside the indoor unit 100, thereby maintaining the aesthetic appearance of the indoor unit 100.
The top of the casing 120 may further be provided with an air inlet grille 122, the air inlet grille 122 is detachably disposed on the top of the casing 120, and the air inlet 121 of the indoor unit 100 is formed on the air inlet grille 122. An accommodating part for accommodating the air quality detecting sensor 200 may be formed at a position at a lateral end of the casing 120 inside the air inlet grill 122, the air quality detecting sensor 200 is disposed in the accommodating part, the air inlet hole 202 of the air inlet grill is disposed toward the air inlet grill 122, the air inlet grill 122 is formed with an opening 125, and the opening 125 is communicated with the air inlet hole 202 or exposes the air inlet hole 202, so that indoor air can enter the air quality detecting sensor 200. The openings 125 of the grill 122 may have a circular shape having a size similar to that of the air inlet holes 202 of the air quality sensor 200, the circular openings 125 communicating with the air inlet holes 202, and the room air passing through the openings 125 into the air inlet holes 202. The openings 125 of the air inlet grille 122 may also be square, and the square openings 125 may expose the end surface where the air inlet end of the air quality detecting sensor 200 is located, so as to expose the air inlet holes 202, and the indoor air directly enters the air inlet holes 202.
In some optional embodiments, the indoor unit 100 may further include a dust filter, and the dust filter may be located inside the air inlet grille 122, cover the air inlet 121, or extend from a position covering the air inlet 121 to a position inside the front panel 130.
Since the airflow entering the air inlet hole 202 of the air quality detecting sensor 200 needs to be faster than a certain speed, the detection accuracy of the air quality detecting sensor 200 can be ensured, and if large particles of dust or floc are deposited on the air inlet hole 202 or the air inlet hole 202 is stuck, the detection data of the air quality detecting sensor 200 is inaccurate. To this end, in some alternative embodiments, the air quality detecting sensor 200 is disposed inside a dust filter at a position close to the air inlet 121 at the lateral end of the housing 120, and the air entering the air inlet hole 202 of the air quality detecting sensor 200 is first filtered by the dust filter, and the dust filter filters large particle impurities and flocs in the air, thereby preventing similar substances from blocking the air inlet hole 202 of the air quality detecting sensor 200 and preventing the air inlet hole 202 from being blocked to cause inaccurate detection data.
In order to facilitate the installation of the air quality detection sensor 200, an installation plate 203 is formed on the surface where the air outlet end of the air quality detection sensor 200 is located, and the air quality detection sensor 200 is installed on the housing 120 through the installation plate 203.
Fig. 6 is a schematic configuration diagram of the front panel 130, the air quality detecting sensor 200, and the control panel 300 of the wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention. In order to facilitate a user to visually know the air quality of the indoor environment, the front side of the front panel 130 of the indoor unit 100 may further be provided with a display screen 131, the air quality detection sensor 200 has a data jack 201, the indoor airflow enters the air quality detection sensor 200 through the air inlet 202, the indoor airflow is amplified, projected and converted into an electrical signal through an optical element, and the data jack 201 and the control panel 300 of the indoor unit 100 have a processing module therein, the processing module is used for processing the air quality data detected by the air quality detection sensor 200 and sending the air quality data to the display screen 131, and the display screen 131 displays corresponding air quality data, such as indoor carbon dioxide concentration, PM2.5 concentration, dust concentration and the like, and can also display air quality grades, such as excellent, good, poor and the like, thereby quantitatively displaying the indoor air quality.
Fig. 7 is a schematic structural view of a wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention, in which a purification assembly 150 is in a purification mode, fig. 8 is a schematic structural view of the wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention, in which the purification assembly 150 is in a non-purification mode, and fig. 9 is a schematic sectional view of the wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention, in which the purification assembly 150 is in the non-purification mode.
Referring to fig. 7, 8 and 9, in order to expand the functions of the indoor unit 100, the indoor unit 100 may further include a purge assembly 150 and at least one driving device 140 connected to the purge assembly 150, and the driving device 140 is disposed on the casing 120 and configured to drive the purge assembly 150 to switch between a purge mode and a non-purge mode according to a detection result of the air quality detection sensor 200.
For example, the initial state of the purification assembly 150 is a non-purification mode, when the air quality detection sensor 200 detects that the air quality of the indoor environment is medium or poor, the air quality detection sensor 200 feeds back the detection result to the controller of the driving device 140, the driving device 140 operates under the control of the controller to drive the purification assembly 150 to switch from the non-purification mode to the purification mode, as shown in fig. 7, the purification assembly 150 moves from the inner side of the front panel 130 to the inner side of the air inlet 121 in the purification mode and covers the air inlet 121, so as to purify the air flow entering the indoor unit 100, and improve the air quality of the surrounding environment.
When the air quality detection sensor 200 detects that the air quality of the indoor environment is good or excellent, the air quality detection sensor 200 feeds back the detection result to the controller of the driving device 140, the driving device 140 operates under the control of the controller to drive the purification assembly 150 to switch from the purification mode to the non-purification mode, as shown in fig. 8 and 9, the purification assembly 150 moves from the inner side of the air inlet 121 to the inner side of the front panel 130 in the non-purification mode to expose the air inlet 121, so that the airflow directly enters the indoor unit 100 without passing through the purification assembly 150. The indoor unit fan 170 causes part of the indoor air (air of the surrounding environment where the indoor unit 100 is located) taken in from the air inlet 121 to flow toward the indoor unit heat exchanger 160, and causes the heat-exchanged air heat-exchanged by the indoor unit heat exchanger 160 to flow toward the air outlet 124 via the indoor unit fan 170. Therefore, the indoor unit 100 of the air conditioner can turn on or off the purification function according to the detection result of the air quality detection sensor 200, and the expansion and the flexibility of the use of the air conditioner are realized.
When the cleaning assembly 150 is driven by the driving device 140 to move from the inner side of the front panel 130 to the inner side of the air inlet 121 in the cleaning mode, the cleaning assembly 150 can completely cover the air inlet 121, and the air flowing into the indoor unit 100 needs to be sufficiently cleaned by the cleaning assembly 150 and then enters the indoor unit 100. The cleaning assembly 150 may also cover a portion of the air inlet opening 121, and the cleaning assembly 150 cleans the air flow entering the indoor unit 100 through the covered portion of the air inlet opening 121. In actual operation of the air conditioner indoor unit 100, the specific position of the cleaning assembly 150 moving from the inner side of the front panel 130 to the inner side of the air inlet 121 can be adjusted according to the current air quality and the user's requirement.
When the purifying assembly 150 is driven by the driving device 140 to move from the inside of the air inlet 121 to the inside of the front panel 130 in the non-purifying mode, the purifying assembly 150 can completely move to the inside of the front panel 130 to completely expose the air inlet 121, and the airflow entering the indoor unit 100 directly enters the indoor unit 100 without being purified by the purifying assembly 150. The purifying assembly 150 can also be partially moved to the inner side of the front panel 130, and a part of the air inlet 121 is still covered by a part of the air inlet 121, the part of the air flow entering from the air inlet 121 is directly entered into the indoor unit 100 without being purified by the purifying assembly 150, and the air flow entering from the covered part of the air inlet 121 needs to be purified by the purifying assembly 150 and then entered into the indoor unit 100. Therefore, the wind resistance of the purifying assembly 150 is reduced, the energy consumption of the air conditioner is reduced, and the use flexibility of the air conditioner is improved. In actual operation of the air conditioner indoor unit 100, the movement of the cleaning assembly 150 from the inside of the air inlet 121 to the inside of the front panel 130 can be adjusted according to the current air quality and the user's requirement.
In some optional embodiments, the indoor unit 100 may further include a dust filter, and the dust filter may be located inside the air inlet grille 122, covering the air inlet 121, or extending from the position covering the air inlet 121 to a position inside the front panel 130, and the cleaning assembly 150 is always located inside the dust filter when switching between the cleaning mode and the non-cleaning mode.
When the purifying assembly 150 is driven to the inside of the air inlet 121 by the driving device 140 in the purifying mode and covers the air inlet 121, the airflow entering the indoor unit 100 is firstly roughly filtered by the dust filter, then finely filtered by the purifying assembly 150, fully purified, enters the indoor unit 100, exchanges heat with the indoor unit heat exchanger 160, and enters the indoor environment through the air outlet. Before the air current passes through the purification assembly 150, the dust filter screen filters impurities such as dust and particles in the air current, so that the impurities such as dust and particles in the air current can be prevented from entering the purification assembly 150 to influence the use of the purification assembly 150, and meanwhile, the purification assembly 150 is prevented from accumulating dust after being used for a long time and needing frequent cleaning or replacement.
Fig. 10 is a combined schematic structural view of a driving unit 140 and a cleaning unit 150 of a wall-mounted type air conditioning indoor unit 100 according to an embodiment of the present invention, fig. 11 is an exploded view of fig. 10, and fig. 12 is a schematic structural view of the driving unit 140 of fig. 11.
In some alternative embodiments, there may be two driving devices 140, and the two driving devices 140 are respectively disposed at two lateral side frames of the housing 120 and are oppositely disposed, so as to improve the moving stability of the purification assembly 150. The transverse direction is the length direction of the cover casing 120, an opening is formed from the top to the front of the cover casing 120, the part of the cover casing 120 at the opening forms a frame of the cover casing 120, the opening of the cover casing 120 at the top is the air inlet 121, and the opening of the cover casing 120 at the front is covered with the front panel 130.
The driving device 140 may include a motor 141, a gear 142 connected to an output shaft of the motor 141, an arc-shaped rack 143 engaged with the gear 142, a link 145, and a guide rail assembly, wherein a first end of the link 145 is rotatably connected to the arc-shaped rack 143, the gear 142 is driven by the motor 141 to rotate, the gear 142 drives the arc-shaped rack 143 to slide, and the link 145 is rotatably and slidably disposed by being driven by the arc-shaped rack 143, that is, the link 145 and the arc-shaped rack 143 generate a rotational relative motion while sliding along with the arc-shaped rack 143.
The guide rail assembly may be disposed at a lateral edge of the housing 120, and is consistent with a movement path of the cleaning assembly 150, the cleaning assembly 150 is rotatably connected to the second end of the connecting rod 145, and the connecting rod 145 drives the cleaning assembly 150 to rotatably and slidably cooperate with the guide rail assembly, so that the movement path of the cleaning assembly 150 moves between an inner side of the front panel 130 and an inner side of the air inlet 121, and the cleaning assembly 150 is switched between the cleaning mode and the non-cleaning mode.
The rail assembly may include a base 146 and side covers 147 that snap over a face of the base 146 distal to lateral side ends of the cover 120. The base 146 may be disposed at a rim of the lateral side end of the cover case 120, for example, the base 146 is fixed at the rim of the lateral side end of the cover case 120 by screws, and the side cover 147 and the base 146 define an accommodating space in which the gear 142, the arc-shaped rack 143, and the link 145 are all disposed.
An output shaft of the motor 141 penetrates through the base 146 to be connected with the gear 142, a first end of the connecting rod 145 is rotatably connected with the arc-shaped rack 143, a second end of the connecting rod 145 is rotatably connected with the purifying assembly 150, a guide rail 147-1 matched with a movement path of the purifying assembly 150 is formed on one side of the side cover 147, which is far away from the base 146, and the purifying assembly 150 is driven by the connecting rod 145 to move along the guide rail 147-1. The second end of the connecting rod 145 can be provided with a positioning sliding column 145-1, the guide rail 147-1 forms a hollow area in the extending direction, the positioning sliding column 145-1 penetrates through the hollow area to be rotatably connected with the purifying assembly 150, and in the process that the connecting rod 145 moves along with the arc-shaped rack 143, the positioning sliding column 145-1 slides in the hollow area, so that the purifying assembly 150 moves along the guide rail 147-1 under the driving of the connecting rod 145.
The side of the base 146 facing the side cover 147 may further be formed with an arc-shaped groove 146-1, and the side of the arc-shaped rack 143 adjacent to the base 146 is provided with at least one roller 144, and the roller 144 may be received in the arc-shaped groove 146-1 and slidingly coupled with the arc-shaped groove 146-1. Therefore, the arc-shaped rack 143 can stably slide along the arc-shaped groove 146-1, and the running stability of the driving device 140 is improved.
In some optional embodiments, the base 146 may include a base body 146-3, an arc-shaped groove 146-1 is formed at a side portion of the base body 146-3, a first vertical plate 146-4 may be formed at a lower surface of the base body 146-3, an avoiding hole is formed on the first vertical plate 146-4, and an output shaft of the motor 141 may pass through the avoiding hole to be in transmission connection with the gear 142. The relief hole in the base 146 may also serve as a placement location for the gear 142, and the gear 142 is accommodated in the placement location, reducing the space occupied by the driving device 140. Further, the motor 141 may be installed on the base 146, a motor mounting stud is disposed on a side of the first vertical plate 146-4 away from the side cover 147, a lug with a mounting hole is disposed on the motor 141, and the motor 141 is installed on the base 146 through a threaded fastener which penetrates through the mounting hole and is matched with the motor mounting stud, so that the motor 141 drives the gear 142 to rotate. The positions of the components in the driving device 140 are reasonably distributed, and the formed driving device 140 has a delicate design and a compact structure, and is conveniently arranged in the indoor unit 100 with a narrow space.
The side cover 147 comprises a side cover body 147-3, a guide rail 147-1 is formed on one side of the side cover body 147-3 away from the base 146, a second vertical plate 147-4 can be formed on the lower surface of the side cover body 147-3, one of the first vertical plate 146-4 and the second vertical plate 147-4 can be provided with a positioning column 146-5, and the other can be provided with a positioning hole 147-5 matched with the positioning column 146-5, so that the side cover 147 is conveniently buckled with the base 146. In some alternative embodiments, one of the base body 146-3 and the side cover body 147-3 may be provided with a catch 146-2, and the other may be provided with a catch groove 147-2 adapted to the catch 146-2, and the catch 146-2 is caught in the catch groove 147-2, thereby catching the base 146 on the side cover 147. Thereby further reducing the space occupied by the drive means 140.
The base body 146-3 may have a profile that matches the profile of the side cover body 147-3. For example, the base body 146-3 may be formed by connecting two curved sections with different degrees of curvature, the portion of the side cover body 147-3 corresponding to the base body 146-3 may be formed by connecting two curved sections with different degrees of curvature, and the overall shape of the base 146 is similar to that of the side cover 147, so as to facilitate the fastening of the side cover 147 and the base 146.
In some alternative embodiments, the guide track 147-1 may include a first curved segment 147-1-1 and a second curved segment 147-1-2 contiguous with the first curved segment 147-1-1, the first curved segment 147-1-1 and the second curved segment 147-1-2 may be shaped like an arc, and the first curved segment 147-1-1 and the second curved segment 147-1-2 may be curved differently, thereby forming an irregularly shaped guide track 147-1 that matches the path of movement of the purification assembly 150.
The first curved section 147-1-1 may be located at a position corresponding to the air inlet 121 on a frame of the lateral side end of the housing 120, and the second curved section 147-1-2 may extend forward and downward to an inner side of the front panel 130. The second curved section 147-1-2 is located outside the arc-shaped groove 146-1, that is, the second curved section 147-1-2 is closer to the front panel 130 than the arc-shaped groove 146-1 is located, and the first curved section 147-1-1 is located just below the inner side of the air inlet 121 and is located higher than the first curved section 147-1-1 and the arc-shaped groove 146-1. Therefore, when the cleaning assembly 150 is moved along the irregular-shaped guide 147-1 by the connecting rod 145, the moving path of the cleaning assembly 150 is always located outside the arc-shaped groove 146-1.
In some schemes, the arc-shaped rack 143 drives the purification assembly 150 to cooperate with the arc-shaped guide rail to switch between the purification mode and the non-purification mode, but in this scheme, the space in the indoor unit 100 occupied by the motion path of the purification assembly 150 is large, which affects the arrangement of the indoor unit heat exchanger 160 and the indoor unit fan 170, in this embodiment, the arc-shaped rack 143 drives the purification assembly 150 to move through the connecting rod 145, the motion path of the purification assembly 150 driven by the connecting rod 145 is no longer a regular arc, but moves along the guide rail 147-1 with an irregular shape, the space occupied by the motion of the purification assembly 150 is smaller, the internal space of the two air-conditioning indoor units 100 is saved, and the influence on the arrangement of the indoor unit heat.
Fig. 13 is a sectional view of a wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention. In order to clearly and intuitively understand that the purification assembly 150 is directly driven by the arc-shaped rack 143 and the scheme of providing a sliding track for the purification assembly 150 by the arc-shaped guide rail is different from the scheme of driving the purification assembly 150 by the arc-shaped rack 143 through the connecting rod 145 to match the movement of the irregular-shaped guide rail 147-1, fig. 13 shows the path of the irregular-shaped guide rail 147-1 and the arc-shaped guide rail B, as shown in fig. 13, a is the path of the irregular-shaped guide rail 147-1 formed by connecting a first curved section 147-1-1 and a second curved section 147-1-2 with a different arc from the first curved section 147-1-1, B is the path of the regular-shaped arc-shaped guide rail, and the irregular-shaped guide rail 147-1 is positioned outside the arc-shaped guide rail.
If the purification assembly 150 is directly moved along the arc-shaped guide rail by the arc-shaped rack 143, the movement trace of the purification assembly 150 is located at the outer side, and if the purification assembly 150 is moved along the irregularly-shaped guide rail 147-1 by the connecting rod 145, the movement trace of the purification assembly 150 is located at the inner side. Therefore, the cleaning assembly 150 is driven by the connecting rod 145 to move along the irregular-shaped guide rail 147-1 with a smaller space, which can make up more internal space of the indoor unit 100, and does not need to increase the volume of the indoor unit 100, and can provide enough space for the arrangement of the indoor unit heat exchanger 160 and the indoor unit fan 170 while satisfying the arrangement of the driving device 140 and the cleaning assembly 150 in the indoor unit 100, thereby avoiding the need of additionally increasing the internal space of the indoor unit 100 due to the arrangement of the driving device 140.
In some alternative embodiments, the purge assembly 150 may be located between two oppositely disposed driving devices 140 and rotatably connected to the second end of the connecting rod 145 of the corresponding driving device 140, the two driving devices 140 operate synchronously, and the connecting rod 145 drives the purge assembly 150 to move in cooperation with the limit of the guide 147-1. Thereby increasing the stability of the movement of the purge assembly 150.
As shown in fig. 10 and 11, the purification assembly 150 may include a bracket and a purification module 151 disposed on the bracket, the bracket is rotatably connected to the second end of the connecting rod 145, the motor 141 drives the gear 142 to rotate, the gear 142 drives the arc-shaped rack 143 to slide along the arc-shaped slot 146-1, the arc-shaped rack 143 drives the bracket and the purification module 151 to move through the connecting rod 145 rotatably connected thereto, the connecting rod 145 slides along the arc-shaped rack 143 while there is a relative rotational movement with the arc-shaped rack 143, and the bracket and the purification module 151 slide along the connecting rod 145 while there is a relative rotational movement with the connecting rod 145.
The arc-shaped rack 143 slides in the regular arc-shaped groove 146-1, and the bracket and the purification module 151 are driven by the connecting rod 145 to move along the irregular-shaped guide rail 147-1, so that the purification assembly 150 moves between the inner side of the front panel 130 and the inner side of the air inlet 121, and the movement space of the purification assembly 150 is reduced, so that more inner space of the indoor unit 100 can be made, the volume of the indoor unit 100 does not need to be increased, and the arrangement of other parts of the indoor unit 100 can be met.
The electrostatic absorption module can adsorb electrified PM2.5 particulate matter, PM2.5 particulate matter in the high-efficient filtration environment, plasma purification module can catch the non-plasma of special use, high-efficient bacterium, virus of killing, and decompose into trace H2O, CO2 entering air, anion generation module can release the anion in to the air, form oxygen anion, high-efficient dust removal sterilization, air-purifying, active air molecule simultaneously, improve human lung function, promote metabolism.
The bracket may include two oppositely disposed coupling portions 152, the purification module 151 is disposed between the two coupling portions 152, a first end of the coupling portion 152 is rotatably coupled to a second end of the corresponding link 145 of the driving device 140, and a second end of the coupling portion 152 is slidably engaged with the guide rail 147-1. The shape of the connection portion 152 may conform to the shape of the purification module 151, for example, the purification module 151 may have an arc shape, and the connection portion 152 may also have an arc shape, so as to facilitate the connection between the purification module 151 and the connection portion 152. The two connection portions 152 may have oppositely disposed first locking grooves, which are locked to the lateral ends of the purification modules to mount the purification modules on the bracket.
The bracket may further include a side frame 153 disposed at a side of the purification module 151, the side of the purification module 151 refers to a vertical end edge corresponding to a transverse end of the purification module, the side frame 153 has a second clamping groove, and the side of the purification module 151 is clamped in the second clamping groove.
A purification module 151 may be disposed on the bracket, two lateral end edges of the purification module 151 are respectively clamped in the first clamping grooves of the corresponding connecting portions 152, and two side edges of the purification module 151 are respectively clamped in the second clamping grooves. The motor 141 drives the connecting rod 145 to move by driving the corresponding gear 142 and the rack 143, respectively, so as to drive the bracket and the purification module 151 to move synchronously, thereby realizing the conversion of the purification module 151 between the purification mode and the non-purification mode, and when the bracket and the purification module 151 move to the inner side of the air inlet 121, the purification module 151 purifies the air flow entering the indoor unit 100.
Two purification modules 151 can be arranged on the bracket, a joint part can be arranged at the middle position of the side frame 153 to connect the two purification modules 151, and the side edges of the two purification modules 151 at the joint part can abut against each other.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Because the air resistance of the air flow generated by the indoor unit fan 170 is obviously different when the purification assembly 150 is in the purification mode and the non-purification mode, after the purification function is started, the air flow is filtered, so that the heat exchange effect of the indoor unit heat exchanger 160 is inevitably attenuated, the high load problem is easy to occur, and the air conditioner can be correspondingly controlled according to the operation mode of the air conditioner, so that the influence on the normal refrigeration or heating function of the air conditioner is reduced when the air conditioner is purified.
For example, after the purification function is turned on, a target tube temperature of the indoor unit heat exchanger 160 may be set, the tube temperature of the indoor unit heat exchanger 160 may be detected in real time, and the refrigeration system of the air conditioner may be feedback-controlled according to a temperature difference between the detected tube temperature and the target tube temperature.
One specific control method is as follows:
when the air conditioner operates in a cooling mode, if the temperature of the heat exchanger pipe after purification is lower than the target pipe temperature and does not exceed a first temperature difference threshold (for example, 3 degrees), feedback control can be performed on the indoor fan 170 according to the difference, and the lower the temperature of the heat exchanger pipe is, the faster the rotating speed of the indoor fan 170 is. If the increase of the rotating speed of the indoor unit fan 170 cannot ensure that the temperature difference between the heat exchanger tube temperature and the target tube temperature is within the first temperature difference threshold, the opening of the throttling device of the compression refrigeration cycle is increased, and if the temperature difference between the heat exchanger tube temperature and the target tube temperature is still not ensured to be within the second temperature difference threshold, the compressor is subjected to frequency reduction, so that the high load caused by the excessively low temperature of the indoor unit heat exchanger 160 is prevented.
When the air conditioner performs cooling operation, if the temperature of the heat exchanger tube after purification is higher than the target tube temperature and does not exceed the first temperature difference threshold (for example, 3 degrees), feedback control can be performed on the indoor fan 170 according to the difference, and the higher the temperature of the heat exchanger tube temperature is, the faster the rotation speed of the indoor fan 170 is. If the increase of the rotating speed of the indoor unit fan 170 cannot ensure that the temperature difference between the heat exchanger tube temperature and the target tube temperature is within the first temperature difference threshold, the opening of the throttling device of the compression refrigeration cycle is increased, and if the temperature difference between the heat exchanger tube temperature and the target tube temperature is still not ensured to be within the second temperature difference threshold, the compressor is subjected to frequency reduction, so that the high load caused by the overhigh temperature of the indoor unit heat exchanger 160 is prevented.
The first temperature difference threshold and the second temperature difference threshold may be configured according to the specification and the use requirement of the indoor unit heat exchanger 160, for example, the first temperature difference threshold is set to plus or minus 3 degrees celsius, and the second temperature difference threshold is set to plus or minus 5 degrees celsius.
In addition, when the cleaning assembly 150 is driven by the driving device 140 to switch between the cleaning mode and the non-cleaning mode, the vertical distance between the cleaning assembly 150 and the surface of the indoor unit heat exchanger 160 is relatively short. Therefore, when the cleaning assembly 150 moves to block a part of the indoor unit heat exchanger 160, a relatively large wind resistance is generated in the local area, which affects the heat exchange efficiency of the local area. Therefore, the indoor heat exchanger 160 generates local temperature difference, and is easy to have the problems of condensation or freezing and the like, so that the heat exchange capability of the indoor heat exchanger is weakened.
Fig. 14 is a schematic view of an indoor unit heat exchanger 160 of a wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention. Referring to fig. 14, to solve the above problem, in some alternative embodiments of the present invention, the heat exchanger 160 has a plurality of heat exchange areas and at least one electronic expansion valve 161, and is configured to adjust an opening degree of the electronic expansion valve 161 according to a position of the purification assembly 150 to control an amount of refrigerant entering the plurality of heat exchange areas.
The electronic expansion valve 161 may be plural. The specific number of the electronic expansion valves 161 may be the same as the number of the heat exchange areas, so that each heat exchange area has one electronic expansion valve 161 opposite to the electronic expansion valve, and the input amount of the refrigerant entering the heat exchange area can be directly adjusted and controlled by the corresponding electronic expansion valve 161, thereby adapting to the heat exchange efficiency of each heat exchange area, which is different due to different windage resistances, and further making the heat exchange effect of each area of the heat exchanger 160 substantially the same.
The number of the plurality of heat exchange areas is two, and the first heat exchange area is located below the air inlet 121, and the second heat exchange area is located below the front side of the front edge of the air inlet 121, that is, the area corresponding to the inner side of the front panel 130.
When the purifying assembly 150 is driven by the driving device 140 to move to the inner side of the air inlet 121, the purifying assembly 150 covers the air inlet 121, at this time, the position of the purifying assembly 150 is the first position, and the downstream of the air inlet path of the air inlet 121 is the first heat exchange area.
When the cleaning assembly 150 is driven by the driving device 140 to move to the inner side of the front panel 130, the air inlet 121 is exposed. At this time, the position of the purification assembly 150 is the second position, and the corresponding area inside the front panel 130 is the second heat exchange area.
The heat exchanger 160 may have a main guide line 162 for guiding inflow of the refrigerant and first and second guide lines 163 and 164 for supplying the refrigerant to the first and second heat exchange regions, respectively. The electronic expansion valve 161 may be disposed at an input end of the first diversion pipeline 163 or the second diversion pipeline 164 to adjust an amount of the refrigerant entering the first diversion pipeline 163 and/or the second diversion pipeline 164.
In the cleaning module 150, the cleaning module 150 is driven by the driving device 140 to move to a position covering the air inlet 121 to clean the air entering the indoor unit 100. At this time, the first heat exchange area located inside the purification assembly 150 and below the air inlet 121 is significantly affected by the wind resistance of the purification assembly 150. Thus, it is necessary to restrict the flow of the refrigerant into the first heat exchange region and/or to increase the flow of the refrigerant into the second heat exchange region.
When the indoor ambient air quality is slightly good and the user does not require the cleaning module 150 of the indoor unit 100 to start the cleaning mode, the cleaning module 150 is driven by the driving device 140 to move from the inside of the air inlet 121 to the inside of the front panel 130, and the cleaning module 150 does not contact with the ambient air in a large area, so as to reduce or avoid the contact with the air as much as possible. At this time, the second heat exchange area located at the rear side of the purification assembly 150 and approximately perpendicular to the plane of the air inlet 121 is significantly affected by the wind resistance of the purification assembly 150. Thus, it is necessary to restrict the flow of the refrigerant into the second heat exchange region and/or to increase the flow of the refrigerant into the first heat exchange region.
That is, the heat exchanger 160 may be divided into different heat exchange areas according to different moving positions of the purification assembly 150. Further, when the position of the purification assembly 150 is changed, the indoor unit 100 can immediately adjust the refrigerant input amount of each heat exchange area directly, so as to quickly balance the overall heat exchange effect of the heat exchanger 160 and avoid the phenomenon of excessive local temperature difference of the heat exchanger 160.
In some alternative embodiments, the number of electronic expansion valves 161 may be one. The electronic expansion valve 161 may be disposed at an input end of the second guide line 164, and configured such that when the purification assembly 150 is moved to the inside of the air inlet 121 by the driving device 140, the electronic expansion valve 161 increases its opening degree to a first opening degree. That is, when the purge assembly 150 is located at the first position, the air resistance thereof reduces the air flow passing through the first heat exchange area, thereby reducing the heat exchange amount of the refrigerant in the first heat exchange area. At this time, the electronic expansion valve 161 may increase the opening degree thereof so that the refrigerant flowing into the second heat exchange region is increased and the refrigerant flowing into the first heat exchange region is decreased. Therefore, the heat exchange pressure and the heat exchange efficiency of the first heat exchange area and the second heat exchange area are adaptive to the air volume flowing through the first heat exchange area and the second heat exchange area, and the heat exchange effects of the first heat exchange area and the second heat exchange area are balanced.
Accordingly, when the purge assembly 150 is moved to the second position by the driving device 140, the electronic expansion valve 161 decreases its opening degree to a second opening degree smaller than the first opening degree. That is, the air resistance of the purification assembly 150 at the second position reduces the air flow passing through the second heat exchange area, thereby reducing the heat exchange amount of the refrigerant in the second heat exchange area. At this time, the electronic expansion valve 161 may decrease the opening degree thereof so that the refrigerant flowing into the second heat exchange region decreases and the refrigerant flowing into the first heat exchange region increases. Therefore, the heat exchange effect of the first heat exchange area and the second heat exchange area is balanced.
In particular, since the first heat exchange area located below the air inlet 121 is more easily exposed to more ambient air than the second heat exchange area located at the inner front side of the housing 120, the heat exchange efficiency is relatively high. Therefore, the electronic expansion valve 161 may be directly disposed at the input end of the second diversion pipeline 164 for delivering the refrigerant to the second heat exchange area, so as to pre-limit the input amount of the refrigerant entering the second heat exchange area, thereby preventing or properly limiting the imbalance of the heat exchange effect possibly generated by the indoor unit heat exchanger 160.
In some alternative embodiments, the number of heat exchange areas of the indoor unit heat exchanger 160 may also be other values greater than two. Accordingly, the movement position of the purge assembly 150 may be further subdivided. In this embodiment, the plurality of moving positions of the purification assembly 150 may respectively correspond to a plurality of sets of ideal refrigerant input amounts of each heat exchange area. That is, for the situation that various heat exchange efficiencies of the indoor unit heat exchanger 160 are not uniform, corresponding refrigerant input amount distribution ratios are respectively set, so that the adjustment of the refrigerant input amount in each branch pipeline of the indoor unit heat exchanger 160 is more accurate and rapid.
In this embodiment, the electronic expansion valve 161 is disposed at the input end of the second diversion pipeline 164 of the second heat exchange area, so that when the position of the purification assembly 150 is changed, only a relatively small opening difference value is required to be changed by the electronic expansion valve 161, and the heat exchange pressures of the two heat exchange areas can be balanced, thereby increasing the adjustment speed of the electronic expansion valve 161, and making the adjustment amplitude of the electronic expansion valve 161 more stable and stable, and prolonging the service life thereof.
Further, specific values of the first opening degree and the second opening degree may be set according to an actual use condition of the indoor unit 100. In some embodiments of the present invention, the first opening degree may be any opening degree value between 70% and 80%. For example, it may be 70%, 72%, 74%, 76%, 78%, or 80%, etc. The second opening degree may be any opening degree value between 15% and 50%, and may be 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, or the like, for example.
In some embodiments of the present invention, the indoor unit heat exchanger 160 has a three-stage housing including a first heat exchange stage 165 horizontally disposed below the air intake 121, a second heat exchange stage 166 extending from a front end of the first heat exchange stage 165 to a lower front side, and a third heat exchange stage 167 vertically extending downward from a lower end of the second heat exchange stage 166. First and second flow conduits 163, 164 are each configured to tap into shell 120 from second heat exchange section 166.
That is, the input ends of the first diversion pipeline 163 and the second diversion pipeline 164 can be connected to the second heat exchange section 166 located at the middle position of the heat exchanger 160 along the same extending direction. Therefore, the refrigerant input pipeline mechanism is compact and occupies small space. Further, the first diversion pipeline 163 and the second diversion pipeline 164 located inside the second heat exchange section 166 respectively extend in opposite directions, so that the mutual influence of the refrigerants in the diversion pipelines of the two heat exchange areas can be avoided.
In some embodiments of the present invention, first heat exchange section 165 and at least a portion of second heat exchange section 166 form a first heat exchange zone. Third heat exchange section 167 and at least a portion of second heat exchange section 166 form a second heat exchange zone. The first guide pipe 163 is bent and extended upward in the second heat exchange section 166 to the first heat exchange section 165 to cover the entire first heat exchange area. The second pilot line 164 is bent within the second heat exchange section 166 down to the third heat exchange section 167 to cover the entire second heat exchange area.
That is, the upper half of the second heat exchange section 166 belongs to the first heat exchange area, and the lower half of the second heat exchange section 166 belongs to the second heat exchange area. Thus, when the cleaning assembly 150 is located between the first position and the second position, the main effect on the indoor unit heat exchanger 160 is substantially located on the second heat exchange section 166 where the input ends of the first guide line 163 and the second guide line 164 are located. Thereby making the windage of the cleaning assembly 150 have a similar effect on the heat exchange effect of the first heat exchange area and the second heat exchange area. Therefore, the input ends of the first diversion pipeline 163 and the second diversion pipeline 164 are both arranged at the middle position of the indoor heat exchanger 160, which can reduce the adjustment range of the opening degree of the electronic expansion valve 161 and the adjustment times, so that the operation of the indoor heat exchanger 160 is more stable.
In some embodiments of the present invention, a first temperature sensor and a second temperature sensor (not shown) are respectively disposed on outer surfaces of the first heat exchange area and the second heat exchange area to respectively detect a first surface temperature of the first heat exchange area and a second surface temperature of the second heat exchange area. Further, the electronic expansion valve 161 may be configured such that when the difference between the first surface temperature and the second surface temperature is greater than a predetermined temperature difference, the electronic expansion valve 161 increases or decreases a predetermined opening value.
That is, the opening degree of the electronic expansion valve 161 may be first adjusted (increased to the first opening degree or decreased to the second opening degree) instantaneously according to the movement position of the purge assembly 150. Then, in the operation process of the indoor unit heat exchanger 160, the electronic expansion valve 161 can also perform real-time adjustment according to the first surface temperature and the second surface temperature of the first heat exchange area and the second heat exchange area, so that the heat exchange effect of each area of the indoor unit heat exchanger 160 is continuously maintained at substantially the same level, and the use effect of the user is ensured.
Specifically, the temperature difference value of the first surface temperature and the second surface temperature may be further set according to the performance of the indoor unit heat exchanger 160, the purification mode of the indoor unit 100, and the like. In some embodiments of the present invention, the temperature difference may be any temperature value between 0.5 and 2 ℃. For example, the temperature may be 0.5 ℃, 0.7 ℃, 0.9 ℃, 1 ℃, 1.5 ℃, 2 ℃ or the like. In some preferred embodiments, the temperature difference may preferably be 1 ℃, so as to ensure that the surface temperatures of the areas of the indoor heat exchanger 160 do not differ too much, and avoid too frequent adjustment of the opening degree of the electronic expansion valve 161.
In some embodiments of the present invention, in the event that the difference between the first surface temperature and the second surface temperature is greater than the temperature difference, the electronic expansion valve 161 is configured to: when the first surface temperature is less than the second surface temperature, the electronic expansion valve 161 increases the opening value. When the first surface temperature is greater than the second surface temperature, the electronic expansion valve 161 decreases the opening value. Specifically, the preset opening degree adjusting value can be any value between 1% and 10%. For example, it may be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, or the like.
That is, after the opening degree of the electronic expansion valve 161 is primarily adjusted according to the moving position of the purification assembly 150, in the operation process of the indoor unit heat exchanger 160, the heat exchange effect of the first heat exchange area and the second heat exchange area may be slightly different due to the influence of factors such as the indoor environment where the indoor wall-mounted unit of the air conditioner is located, and thus the surface temperature of the heat exchanger is unbalanced. At this time, the opening degree of the electronic expansion valve 161 is adjusted to a small extent according to the surface temperature difference of each heat exchange area of the indoor heat exchanger 160, so that the input amount of the cooling medium in the indoor heat exchanger 160 can be regulated in real time, and the local temperature difference on the indoor heat exchanger 160 can be eliminated rapidly. In particular, the fine adjustment can also provide data support for the preset opening value required when the first opening, the second opening and the like are optimized and adjusted for the first time, and the fine adjustment is greatly beneficial to the functional perfection of the wall-mounted unit in the air conditioner room.
In some embodiments of the present invention, the indoor unit 100 further includes a liquid distribution adjusting device 70 disposed downstream of the main diversion pipeline 162 and upstream of the first diversion pipeline 163 and the second diversion pipeline 164.
Fig. 15 is a schematic front view of a liquid separation adjusting device 70 of a wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention, and fig. 16 is a schematic cross-sectional view of the liquid separation adjusting device 70 of the wall-mounted air conditioning indoor unit 100 according to an embodiment of the present invention.
Referring to fig. 15, the liquid-separating adjusting device 70 has a flow-dividing chamber, and an elastic member 700 is disposed in the flow-dividing chamber to divide the inner space of the flow-dividing chamber into a first sub-chamber and a second sub-chamber, so as to respectively accommodate at least part of the refrigerant flowing into the flow-dividing chamber. Specifically, the liquid separation adjusting device 70 further includes a main diversion pipeline 162, a first diversion pipeline 163 and a second diversion pipeline 164, which are communicated with the refrigerant inlet thereof. The main diversion line 162 is configured to direct the refrigerant into the diversion chamber. The first flow guiding pipe 163 is configured to communicate with the first sub-chamber to guide the refrigerant in the first sub-chamber to flow out of the liquid separation regulating device 70. The second guiding pipe 164 is configured to communicate with the second sub-chamber to guide the refrigerant in the second sub-chamber to flow out of the liquid separation regulating device 70.
Further, the first guiding pipeline 163 is configured to communicate with the refrigerant receiving opening of the first heat exchanging region, so as to guide the refrigerant in the first sub-chamber to enter the first heat exchanging region. The second guiding line 164 is configured to communicate with the refrigerant receiving opening of the second heat exchanging region to guide the refrigerant in the second sub-chamber into the second heat exchanging region.
In some embodiments of the present invention, the elastic member 700 is composed of a fixed part 710 and a movable part 720. The fixing portion 710 is arc-shaped and is configured such that the outer peripheral end edge thereof is fixed to the inner wall of the branch chamber. The movable portion 720 is disposed such that a portion of its peripheral edge is connected to at least a portion of the inner peripheral edge of the fixed portion 710, and another portion of its peripheral edge is adjacent to at least a portion of the inner peripheral edge of the fixed portion 710 and/or a portion of the inner wall of the branch chamber, so as to separate the refrigerant in the first sub-chamber and the second sub-chamber and respectively deliver the refrigerant therein to the refrigerant pipes of the two heat exchange regions.
Referring to fig. 16, in some embodiments of the present invention, the elastic member 700 may be a sheet shape. The fixed part 710 and the movable part 720 may form a complete sectional shape having the same shape and size as at least one section of the distribution chamber to divide the inner space thereof into two parts.
That is, when the refrigeration effect of two heat transfer regions is similar, the heat transfer pressure of the two is also comparatively balanced to make respectively with the first subchamber of two heat transfer regional intercommunications and the fluid pressure of second subchamber roughly equal. From this, when the pressure in first subchamber and the second subchamber is equal, elastic component 700 can not receive rather than vertically effort, or this effort is far less than its self resilience force, thereby avoid movable part 720 and fixed part 710 or shunt intracavity wall between produce the clearance, and then prevent the indoor fluid exchange that produces of first subchamber and second subchamber, so that current comparatively balanced heat transfer effect can be maintained in two heat transfer regions, avoid its appearance of the too big condition of local difference in temperature, the stability of heat exchanger operation has been strengthened.
Further, a portion of the fixed portion 710 connected to the inner wall of the flow dividing chamber (hereinafter, referred to as a connecting portion) is away from the inlet of the flow dividing chamber for receiving the refrigerant, with respect to a portion of the movable portion 720 adjacent to at least a portion of the inner circumferential end edge of the fixed portion 710 and/or the inner wall of the flow dividing chamber (hereinafter, referred to as an adjacent portion).
Thus, when the pressures within the first and second sub-chambers are not equal, the pressure differential between the first and second sub-chambers causes the resilient sheet to be subjected to forces perpendicular thereto. When this effort is greater than the resilience force of elastic component 700 self, clearance is produced between movable part 720 and the reposition of redundant personnel intracavity wall, first sub-chamber and second sub-chamber intercommunication each other to produce the fluid exchange and get into the volume of the refrigerant in first sub-chamber and the second sub-chamber respectively.
When the purification assembly 150 is moved between the purification position and the non-purification position, the wind resistance generated by the purification assembly to the two heat exchange areas is different, so that the heat exchange efficiency of the two heat exchange areas is different.
Specifically, when the purification assembly 150 is located at the upstream of the air inlet path of the first heat exchange region communicated with the first sub-chamber, the wind resistance of the first heat exchange region is increased, the heat exchange efficiency is reduced, and the temperature of the refrigerant therein is gradually lower than the temperature of the refrigerant in the second heat exchange region, so that the fluid pressure in the first heat exchange region is gradually lower than the fluid pressure in the second heat exchange region.
Accordingly, the fluid pressure within the first sub-chamber communicating with the first heat exchange region is progressively less than the fluid pressure within the second sub-chamber communicating with the second heat exchange region. When the effort that the fluid pressure difference of two subchambers produced was greater than the resilience force of elastic component 700 self, the one end atress that is located the adjacent part of moving part was crooked to the little first subchamber of fluid pressure to make the cross-sectional area that first subchamber is close to the refrigerant input of reposition of redundant personnel chamber reduce, and make the second subchamber be close to the cross-sectional area increase of the refrigerant input of reposition of redundant personnel chamber. From this, crooked movable part 720 can guide more relatively refrigerant to flow into the second subchamber to the refrigerant volume that the restriction flowed into in the first subchamber, thereby make the temperature difference and the heat transfer pressure difference of the first heat transfer region of intercommunication with the first subchamber and the second heat transfer region of intercommunication with the second subchamber reduce gradually, until the effort that the pressure difference of first subchamber and second subchamber produced is less than the resilience force of elastic component 700.
The air-conditioning indoor unit 100 of this embodiment performs refrigerant shunting by providing the liquid separation adjusting device 70 with the elastic member 700, so that when the heat exchange effect of each heat exchange area of the heat exchanger is significantly different, the elastic member 700 can automatically adjust the amount of the refrigerant entering each heat exchange area under the effect of the pressure difference in the liquid separation chamber caused by the difference in the heat exchange effect, and no additional detection or monitoring device is needed, thereby simplifying the structure of the air-conditioning indoor unit 100 and reducing the manufacturing cost thereof.
In the wall-mounted air conditioning indoor unit 100 of this embodiment, the driving device 140 can drive the purifying assembly 150 to switch between the purifying mode and the non-purifying mode according to the detection result of the air quality detection sensor 200, and the purifying assembly 150 is driven by the driving device 140 to move from the inner side of the front panel 130 to the inner side of the air inlet 121 and cover the air inlet 121 in the purifying mode, so as to purify the air flow entering the indoor unit 100 and improve the air quality of the surrounding environment; the cleaning assembly 150 is driven by the driving device 140 to move from the inside of the air inlet 121 to the inside of the front panel 130 in the non-cleaning mode, so that the air inlet 121 is exposed, and thus the airflow directly enters the indoor unit 100 without passing through the cleaning assembly 150. Therefore, the indoor unit 100 of the air conditioner can turn on or off the purification function according to the detection result of the air quality detection sensor 200, and the expansion and the flexibility of the use of the air conditioner are realized.
Further, in the wall-mounted air conditioning indoor unit 100 of the present embodiment, the overall structural design of the driving device 140 is exquisite and compact, so that the internal space of the indoor unit 100 occupied by the driving device 140 is reduced, and the driving device 140 is conveniently disposed in the indoor unit 100 with a narrow space.
Furthermore, in the wall-mounted air conditioning indoor unit 100 of the present invention, the guide rail 147-1 is formed by connecting a first curved section and a second curved section with a different degree of curvature from the first curved section, thereby forming the guide rail 147-1 with an irregular shape, and the second curved section with a lower position is located outside the arc-shaped groove 146-1, the gear 142 drives the arc-shaped rack 143 to slide in the arc-shaped groove 146-1, the arc-shaped rack 143 is connected with the purification assembly 150 through the connecting rod 145, the purification assembly 150 is driven by the connecting rod 145 to move in cooperation with the guide rail 147-1 with an irregular shape, so that the movement path of the purification assembly 150 is located outside the arc-shaped groove 146-1, thereby saving the internal space of the indoor unit 100, facilitating the arrangement of the indoor unit heat exchanger 160 and the indoor unit fan 170, and reducing.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (8)
1. An indoor unit of a wall-mounted air conditioner, comprising:
the top of the housing is provided with an air inlet;
a front panel disposed at a front portion of the housing;
the air quality detection sensor is used for detecting the air quality of the environment where the indoor unit of the air conditioner is located;
the air quality detection sensor is arranged on the shell and is used for detecting the air quality of the air; and is
The purification assembly is configured to be driven by the driving device to move from the inner side of the front panel to the inner side of the air inlet in a purification mode, and cover the air inlet so as to purify air flow entering an indoor unit;
the purifying assembly is configured to be driven by the driving device to move from the inner side of the air inlet to the inner side of the front panel in a non-purifying mode so as to expose the air inlet, and therefore airflow directly enters the indoor unit without passing through the purifying assembly;
the driving device comprises a motor, a gear connected with an output shaft of the motor, an arc-shaped rack meshed with the gear, a guide rail assembly and a connecting rod, wherein the first end of the connecting rod is rotatably connected with the arc-shaped rack, and the connecting rod is driven by the arc-shaped rack to rotate and can be arranged in a sliding manner; the purification assembly is rotatably connected with the second end of the connecting rod and is driven by the connecting rod to be rotatably and slidably matched with the guide rail assembly so as to be driven by the connecting rod to switch between the purification mode and the non-purification mode;
the guide rail assembly comprises a base arranged at the frame of the transverse side end of the housing and a side cover buckled on one surface of the base, which is far away from the transverse side end of the housing, a guide rail matched with the motion track of the purification assembly is formed on one side of the side cover, which is far away from the base, and the purification assembly is driven by the connecting rod to move along the guide rail; an arc-shaped groove is formed in one surface, facing the side cover, of the base, and the arc-shaped rack is driven by the motor through the gear to slide along the arc-shaped groove; a guide rail matched with the motion track of the purification assembly is formed on one side of the side cover, which is far away from the base, and the purification assembly is driven by the connecting rod to move along the guide rail; an arc-shaped groove is formed in one surface, facing the side cover, of the base, and the arc-shaped rack is driven by the motor through the gear to slide along the arc-shaped groove;
the guide rail is formed by connecting a first curved section and a second curved section with different bending degrees from the first curved section, the first curved section is positioned at the position, corresponding to the air inlet, of the frame of the transverse side end of the housing, and the second curved section extends to the inner side of the front panel from the front lower part; and the second curved section is positioned at the outer side of the arc-shaped groove, so that the movement path of the purification assembly is positioned at the outer side of the arc-shaped groove, and the inner space of the indoor unit can be saved.
2. The indoor unit of air conditioner according to claim 1, wherein
The air quality detection sensor is provided with an air inlet hole, and is arranged at the transverse end part of the housing close to the air inlet, so that the air quality detection sensor is positioned in an induced air duct of the indoor unit, and indoor air can conveniently enter the air inlet hole; and the air inlet hole faces the environment of the indoor unit of the air conditioner.
3. The indoor unit of claim 2, further comprising
The air inlet grille is detachably arranged at the top of the housing, and the air inlet is formed in the air inlet grille;
an accommodating part for accommodating the air quality detection sensor is formed at the position, close to the air inlet, of the transverse end part of the housing on the inner side of the air inlet grille, the air quality detection sensor is arranged in the accommodating part, and the air inlet hole is arranged towards the air inlet grille; and is
The air-inlet grille is formed with the trompil, the trompil with the fresh air inlet intercommunication or show the fresh air inlet to it enters to be convenient for indoor air the trompil the air quality detection sensor.
4. The indoor unit of claim 1, further comprising
And the display screen is arranged on the front side of the front panel, is electrically connected with the air quality detection sensor and is used for displaying the air quality detected by the air quality detection sensor.
5. The indoor unit of air conditioner according to claim 1, wherein
The side cover and the base define a space for accommodating the gear, the arc-shaped rack and the connecting rod;
and an output shaft of the motor penetrates through the base to be connected with the gear.
6. The indoor unit of air conditioner according to claim 1, wherein
One side of the arc-shaped rack close to the base is provided with at least one roller, and the roller is accommodated in the arc-shaped groove and is in sliding contact with the arc-shaped groove.
7. The indoor unit of air conditioner according to claim 1, wherein
The purification assembly comprises:
the purification module is used for purifying the airflow entering the indoor unit of the air conditioner;
the bracket comprises at least one connecting part, the first end of the connecting part is rotatably connected with the second end of the connecting rod, and the second end of the connecting part is in sliding fit with the guide rail; and is
First draw-in groove has been seted up to connecting portion, first draw-in groove with purification module's horizontal tip joint, in order to incite somebody to action purification module installs on the bracket.
8. The indoor unit of air conditioner according to claim 1, wherein
The two driving devices are respectively arranged at the frames at the two transverse sides of the housing and are oppositely arranged.
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| CN201710571286.2A CN107514677B (en) | 2017-07-13 | 2017-07-13 | Wall-mounted air conditioner indoor unit |
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| CN201710571286.2A CN107514677B (en) | 2017-07-13 | 2017-07-13 | Wall-mounted air conditioner indoor unit |
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| CN107514677B true CN107514677B (en) | 2020-04-14 |
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Effective date of registration: 20201030 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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