CN112178773B - Wall-mounted air conditioner indoor unit - Google Patents
Wall-mounted air conditioner indoor unit Download PDFInfo
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- CN112178773B CN112178773B CN201910599889.2A CN201910599889A CN112178773B CN 112178773 B CN112178773 B CN 112178773B CN 201910599889 A CN201910599889 A CN 201910599889A CN 112178773 B CN112178773 B CN 112178773B
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- air
- wall
- air outlet
- guide
- shell
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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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
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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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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 Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides a wall-mounted air conditioner indoor unit, which comprises a casing, an air supply assembly and an indoor heat exchanger, wherein the top wall of the casing is provided with a top air inlet, the front wall of the casing is provided with a front air outlet, the bottom wall of the casing is provided with a bottom air outlet, the transverse side wall of the casing is provided with a side air outlet, the front air outlet is arranged in the lower area of the front wall of the casing, and the front wall of the casing is obliquely inclined forwards from bottom to top; the air supply assembly comprises an air supply part and an air guide part, an air supply fan is arranged in the air supply part, the air supply fan is configured to suck ambient air from the surrounding environment of a top air inlet and enable the air to flow to the air guide part, the air guide part is configured to guide air flow blown out by the air supply fan to a front air outlet and/or a bottom air outlet and/or a side air outlet, so that the selection of the air supply direction is enlarged, different air supply requirements under a refrigeration and heating mode are met, and the air supply experience of a user is improved.
Description
Technical Field
The invention relates to the technical field of air treatment, in particular to an indoor unit of a wall-mounted air conditioner.
Background
The air conditioner is one of necessary household appliances, and a wall-mounted air conditioner indoor unit is a common indoor unit form, so that the wall-mounted air conditioner indoor unit has the characteristic of small occupied space and is very widely applied.
The existing wall-mounted air conditioner indoor unit mainly adopts a cross-flow fan to supply air through a single air port, air inlet and air outlet have no air flow intervening structure, and when heating is carried out, upper air flow blown out from an air outlet is easily influenced by negative pressure of an upper air inlet and directly flows back to the indoor unit without heat exchange with indoor ambient air, so that the heating effect is influenced.
Disclosure of Invention
The invention aims to prevent hot air from flowing back from the air outlet when the indoor unit of the wall-mounted air conditioner heats, and improve the heating effect.
A further object of the present invention is to provide a wall-mounted air conditioner with improved air supply comfort by providing more flexible adjustment of the air supply direction of the indoor unit.
In particular, the present invention provides a wall-mounted type air conditioner indoor unit, comprising:
the heat exchange air supply cavity is defined in the machine shell, the machine shell is provided with a top air inlet, a front air outlet, a bottom air outlet and at least one side air outlet, the top air inlet is formed in the top wall of the machine shell, the front air outlet is formed in the lower region of the front wall of the machine shell, the bottom air outlet is formed in the bottom wall of the machine shell, the side air outlet is formed in the transverse side wall of the machine shell, and the front wall of the machine shell is obliquely inclined forwards from bottom to top;
the air supply assembly is arranged in the heat exchange air supply cavity and comprises an air supply part and an air guide part, an air supply fan is arranged in the air supply part, the air supply fan is configured to suck ambient air from the surrounding environment of the top air inlet and promote the air to flow to the air guide part, and the air guide part is configured to guide airflow blown out by the air supply fan to the front air outlet and/or the bottom air outlet and/or the at least one side air outlet;
and the indoor heat exchanger is arranged in the heat exchange air supply cavity and is positioned on an air inlet flow path between the top air inlet and the air supply part.
Optionally, the air supply part and the air guide part are distributed along the height direction of the casing;
the air supply fan is a centrifugal fan, and a rotating shaft of the centrifugal fan is arranged along the front-back direction;
the air supply portion includes: and the fan volute is arranged on the periphery of the centrifugal fan and communicated with the air guide part.
Optionally, the air guiding portion includes:
the air guide shell is internally limited with an air guide cavity communicated with the fan volute, a front avoidance port communicated with the air guide cavity is formed in the area, opposite to the front air outlet, of the front side of the air guide shell, a bottom bypass port communicated with the air guide cavity is formed in the bottom wall of the air guide shell, and the bottom bypass port is in butt joint with the bottom air outlet so as to supply air to the bottom air outlet; the air guide shell is also provided with at least one side bypass opening communicated with the air guide cavity, the at least one side bypass opening corresponds to and is correspondingly butted with the at least one side air outlet one by one, and the side bypass opening is formed in the transverse side wall of the air guide shell so as to supply air to the corresponding side air outlet;
air guide component, set up in the air guide intracavity, its front end passes it to dodge the mouth to the preceding air outlet extends, air guide component has the through air duct that link up around extending and at least one around the annular jet port that the direction extends around preceding back around, the configuration of annular jet port is to with the heat transfer air current that centrifugal fan blew off guides extremely link up the air duct to blow the air current forward, in order to drive air current in the through air duct is sent forward to preceding air outlet.
Optionally, a rear avoidance opening is formed in a region of the rear wall of the air guide shell, which is opposite to the through air duct;
and a rear air inlet is formed in the area, opposite to the rear avoidance opening, of the rear wall of the shell, so that when the annular jet opening blows air forward, ambient air around the rear air inlet is promoted to enter the through air channel and is mixed with heat exchange air introduced into the through air channel through the annular jet opening.
Optionally, the wall-mounted air conditioner indoor unit further comprises:
the first air deflector is arranged close to the front opening of the through air channel and configured to rotate around a vertical rotating shaft so as to open and close the front opening of the through air channel;
the second air deflector is arranged close to the rear opening of the through air channel and configured to rotate around the other vertical rotating shaft so as to open and close the rear opening of the through air channel;
when the first air deflector and the second air deflector are both opened, the first air deflector and the second air deflector are configured to be driven to rotate to an initial position with partial overlapping and configured to be driven to synchronously rotate leftwards or rightwards from the initial position so as to adjust the direction of the airflow.
Optionally, the wall-mounted air conditioner indoor unit further comprises:
at least one third air deflector arranged at the bottom air outlet and configured to be driven to rotate around respective transverse rotating shafts so as to close the bottom air outlet or guide the airflow blown out from the bottom air outlet;
the air guide shell is provided with at least one side air outlet, two side air outlets are respectively arranged on two transverse side walls of the shell, at least one side by-pass port is arranged on two transverse side walls of the air guide shell, and the two side by-pass ports are respectively arranged on two transverse side walls of the air guide shell;
the indoor unit further includes: and the two fourth air guide plate groups are in one-to-one correspondence with the two side bypass openings, are arranged at the corresponding side bypass openings and comprise at least one fourth air guide plate, and each fourth air guide plate is configured to be driven to rotate around a rotating shaft extending forwards and backwards so as to close the corresponding side air outlet or guide air flow blown out from the corresponding side air outlet.
Optionally, the air guide member includes a rear side air guide ring, a middle air guide ring and a front side air guide ring which are sequentially arranged from back to front;
the rear side air guide ring, the middle air guide ring and the front side air guide ring are respectively provided with a front opening, a rear opening and an airflow channel which is communicated with the front opening and the rear opening in a front-back mode so as to limit the through air duct, and the front opening of the front side air guide ring is in butt joint with the front air outlet;
the front section of the rear side wind guide ring is positioned on the radial inner side of the rear section of the middle wind guide ring and is arranged at intervals, the front section of the middle wind guide ring is positioned on the radial inner side of the rear section of the front side wind guide ring and is arranged at intervals, so that the rear side wind guide ring and the middle wind guide ring are utilized to limit the annular jet opening on the rear side, and the middle wind guide ring and the front side wind guide ring are utilized to limit the annular jet opening on the front side.
Optionally, the peripheral wall of the front side wind guide ring comprises a first annular curved surface, a second annular curved surface and a third curved surface which are sequentially distributed from back to front;
the first annular curved surface is gradually reduced from back to front, the second annular curved surface is gradually expanded from back to front, and the lower end edge of the second annular curved surface extends to the front air outlet; the third curved surface is formed to make the projection of the front end edge and the upper end edge on a vertical plane parallel to the front-back direction be a front end edge projection line and an upper end edge projection line;
the front edge of the front air outlet projects on the vertical plane to form a front air outlet projection line, the front edge projection line and the front air outlet projection line are in the same straight line, and the upper edge projection line extends forwards and backwards.
Optionally, the blower volute and the air guide housing are designed integrally, an upper section of the blower volute contains the air supply blower, and a lower section of the blower volute extends from the upper section to the air guide housing in a forward and downward direction;
the rear wall of the upper section extends from top to bottom, the rear wall of the lower section extends from the lower end of the rear wall of the upper section to the lower side and the front, and the rear wall of the air guide shell extends from the lower end of the rear wall of the lower section to the lower side and the front;
the rear wall of the casing comprises a rear wall upper section which is jointed with the rear wall of the upper section and extends up and down, a rear wall middle section which extends from the lower end of the rear wall upper section to the lower side and is jointed with the rear wall of the lower section, and a rear wall lower section which extends from the lower end of the rear wall middle section to the lower side and is jointed with the rear wall of the air guide casing;
the rear air inlet is formed in the lower section of the rear wall.
Optionally, an air inlet of the air supply part is formed at the front end of the fan volute;
the indoor heat exchanger is vertically arranged on the front side of the air inlet of the air supply part;
the top air inlet is arranged in the front area of the top wall of the shell and is positioned above the front side of the indoor heat exchanger.
Optionally, the wall-mounted air conditioner indoor unit further comprises:
the water receiving tray is arranged below the indoor heat exchanger and used for supporting the indoor heat exchanger and receiving condensed water flowing down from the indoor heat exchanger;
and the sealing plate is arranged behind the indoor heat exchanger, an opening communicated with the air inlet of the air supply part is formed on the rear wall of the sealing plate, the upper end of the sealing plate is abutted against the top wall of the shell, and the lower end of the sealing plate is matched with the water receiving disc to seal the lower part of the indoor heat exchanger, so that all air entering from the top air inlet passes through the indoor heat exchanger for heat exchange.
According to the wall-mounted air conditioner indoor unit, the front air outlet is arranged in the lower area of the front wall of the shell, and the front wall of the shell is arranged in a forward inclining mode from bottom to top, so that hot air blown out of the front air outlet is blocked by the inclined front wall of the indoor unit to flow back upwards, the hot air blown out of the front air outlet is sucked into the indoor unit to exchange heat with an indoor heat exchanger after sufficient heat exchange with indoor ambient air, and the heating effect is improved.
Furthermore, the wall-mounted air conditioner indoor unit can select one or more of the front air outlet, the bottom air outlet and the side air outlet to supply air through the air supply fan and the air guide part, so that the flexibility of air supply direction selection is improved, the indoor temperature is rapid and uniform, different air supply requirements under a refrigeration and heating mode are met, the air supply experience of a user is improved, and the production cost is low.
Furthermore, in the wall-mounted air conditioner indoor unit, the annular jet opening of the air guide member blows air flow forwards to promote ambient air at the rear part to enter the through air channel to be mixed with heat exchange air flow, so that the air supply quantity is increased, the air flow is sent out farther, the air flow is softer, and comfortable air with warm but not dry, cool but not cold is formed.
Furthermore, the wall-mounted air conditioner indoor unit of the invention enables the rear part and the lower part of the rear air inlet to have larger air circulation space by designing the fan volute, the air guide shell and the rear wall and the front wall of the shell into special shapes and distribution forms, thereby ensuring the air inlet amount and the air inlet smoothness of the rear air inlet, leading natural air to better enter the through air channel of the air guide component to be mixed with heat exchange air and realizing more ideal air guide effect.
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 perspective view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;
fig. 2 is an exploded view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;
fig. 3 is a schematic view of an air supply assembly of a wall mounted air conditioner indoor unit according to an embodiment of the present invention;
fig. 4 is a side cross-sectional view of a wall mounted air conditioner indoor unit according to one embodiment of the present invention, wherein the first and second louvers are in a closed position; and
fig. 5 is a schematic cross-sectional side view of a wall mounted air conditioner indoor unit according to an embodiment of the present invention, wherein the first and second air deflectors are rotated to an initial position with partial overlap.
Detailed Description
For convenience of description, the directions "up", "down", "front", "back", "top", "bottom", "transverse", etc. mentioned in the description are defined according to the spatial position relationship in the normal working state of the wall-mounted air conditioner indoor unit 100, for example, as shown in fig. 4, the side of the wall-mounted air conditioner indoor unit 100 facing the user is front, and the side close to the wall is rear. The lateral direction means a direction parallel to the width direction of the indoor unit 100, i.e., a left-right direction.
Fig. 1 is a perspective view of a wall-mounted type air conditioner indoor unit 100 according to an embodiment of the present invention, and fig. 2 is an exploded view of the wall-mounted type air conditioner indoor unit 100 according to an embodiment of the present invention.
The wall-mounted air conditioner indoor unit 100 of the present embodiment may generally include: casing 110, air supply assembly, indoor heat exchanger 101.
A heat exchanging air feeding chamber is defined in the casing 110. In the embodiment shown in the drawings, the casing 110 may include a casing 111 having a rearward opening and a rear panel 112 provided at the rearward opening of the casing 111, the casing 111 and the rear panel 112 cooperatively define a heat exchanging air feeding chamber, the casing 111 may be formed of a top wall, a side wall, a front wall 1110, and a bottom wall, and the rear panel 112 closes the rearward opening of the casing 111 to close the heat exchanging air feeding chamber.
The casing 110 is provided with a top air inlet 111a, a front air outlet 111b, a bottom air outlet 111c and at least one side air outlet 111d, the top air inlet 111a is opened on the top wall of the casing 110, the front air outlet 111b is opened on the front wall 1110 of the casing 110, the bottom air outlet 111c is opened on the bottom wall of the casing 110, and the side air outlet 111d is opened on the lateral side wall of the casing 110. In the embodiment shown in the drawings, the top wall of the casing 110 refers to the top wall of the housing 111, the front wall 1110 of the casing 110 refers to the front wall of the housing 111, the bottom wall of the casing 110 refers to the bottom wall of the housing 111, and the lateral side walls of the casing refer to the lateral side walls of the housing 111. Particularly, the front air outlet 111b is opened in the lower region of the front wall 1110 of the casing 110, and the front wall 1110 of the casing 110 is inclined forward from bottom to top, so that the inclined front wall 1110 of the indoor unit 100 is used to block the hot air flow blown out from the front air outlet 111b from flowing back upwards, so that the hot air flow blown out from the front air outlet 111b is sucked into the indoor unit 100 after sufficient heat exchange with the indoor ambient air and then exchanges heat with the indoor heat exchanger 101, thereby improving the heating effect.
And the air supply component is arranged in the heat exchange air supply cavity and comprises an air supply part and an air guide part, an air supply fan is arranged in the air supply part, the air supply fan is configured to suck ambient air from the surrounding environment of the top air inlet 111a and promote the air to flow to the air supply part, and the air guide part is configured to guide airflow blown out by the air supply fan to the front air outlet 111b and/or the bottom air outlet 111c and/or the side air outlet 111d so as to supply air to the indoor environment through the front air outlet 111b and/or the bottom air outlet 111c and/or the side air outlet 111 d. Therefore, one or more of the front air outlet 111b, the bottom air outlet 111c and the side air outlets 111d can be selected to supply air through the air guide part, so that the selection of the air supply direction can be expanded, different air supply requirements under the refrigeration and heating mode can be met, and the air supply experience of a user can be improved.
And the indoor heat exchanger 101 is arranged in the heat exchange air supply cavity and is positioned on an air inlet flow path between the top air inlet 111a and the air supply part. The indoor heat exchanger 101 is a part of a refrigeration system, and the refrigeration system can be implemented by using a compression refrigeration cycle, and the compression refrigeration cycle implements heat transfer by using a compression phase change cycle of a refrigerant in a compressor, a condenser, an evaporator and a throttling device. The refrigerating system may further include a four-way valve to change a flow direction of the refrigerant, so that the indoor heat exchanger 101 may be alternately used as an evaporator or a condenser to perform a cooling or heating function. Since the compression refrigeration cycle in the air conditioner is well known to those skilled in the art, the operation principle and structure thereof will not be described herein.
In this embodiment, the type and the position of the air supply fan, and the positions of the air supply part and the air guide part may be various, for example, the air supply fan may be a centrifugal fan, an axial flow fan, an oblique flow fan, or the like, and the positions of the air supply part and the air guide part may be determined according to the type of the air supply fan.
Fig. 3 is a schematic view of an air supply assembly of the wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention.
In the embodiment shown in the drawings, the air supply part and the air guide part are distributed along the height direction of the cabinet 110, so that the air supply assembly is vertically arranged as a whole, the front and rear space occupied by the air supply assembly is reduced, and the overall thickness of the wall-mounted air conditioner indoor unit 100 can be reduced. The air supply fan can be a centrifugal fan 130, the rotating shaft of the centrifugal fan 130 is arranged along the front-back direction, and the air supply part further comprises a fan volute 120 which is arranged on the periphery of the centrifugal fan 130 and communicated with the air guide part so as to guide the airflow discharged by the centrifugal fan 130 to the air guide part. The impeller of the centrifugal fan 130 is rotated by a high-speed motor 131, a fan guard 132 is disposed at the rear side of the fan volute 120, and the high-speed motor 131 is mounted on the fan guard 132.
The centrifugal fan 130 may suck ambient air around the top intake port 111a from an axial rear end or a front end thereof, and in the embodiment shown in the drawings, the front end of the fan scroll 120 is formed with the air supply portion intake port 120a, the centrifugal fan 130 sucks air from an axial front end thereof, the indoor heat exchanger 101 is vertically disposed at a front side of the air supply portion intake port 120a, and the top intake port 111a may be opened at a front region of a top wall of the cabinet 110 and located above a front side of the indoor heat exchanger 101. In this embodiment, the centrifugal fan 130, the indoor heat exchanger 101 and the top air inlet 111a are arranged in such a manner that an airflow channel is formed between the front wall 1110 of the casing 110 and the indoor heat exchanger 101, so as to reduce wind resistance and improve smoothness of airflow entering.
Fig. 4 is a side sectional view of a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention.
In some embodiments, the air guiding portion includes an air guiding housing 140 and an air guiding member 150, an air guiding cavity communicated with the blower scroll 120 is defined in the air guiding housing 140, and a front avoiding opening 140b communicated with the air guiding cavity is formed in a region of the front side of the air guiding housing 140 opposite to the front air outlet 111 b. The air guiding member 150 is disposed in the air guiding cavity, and the front end of the air guiding member passes through the front avoiding port 140b and extends toward the front air outlet 111b, and the air guiding member 150 has a through air duct 150b extending forward and backward and penetrating forward and backward and at least one annular jet port 150a extending forward and backward, and the annular jet port 150a is configured to guide the heat exchange airflow blown by the centrifugal fan 130 to the through air duct 150b and blow the airflow forward, so as to drive the airflow in the through air duct 150b to be sent forward to the front air outlet 111 b. The heat exchange airflow discharged from the centrifugal fan 130 is accelerated by the annular jet orifice 150a and rapidly blown forward to the indoor environment through the through air duct 150b, thereby increasing the air supply distance.
In order to cooperate with the through air duct 150b, a rear avoiding opening (not shown) is formed in a region of the rear wall of the air guide housing 140 opposite to the through air duct 150b, and a rear air inlet 112a is formed in a region of the rear wall of the casing 110 opposite to the rear avoiding opening, so that when the annular jet opening 150a blows air forward, ambient air around the rear air inlet 112a can be promoted to enter the through air duct 150b to be mixed with heat exchange air introduced into the through air duct 150b by the annular jet opening 150a, thereby increasing air supply, enabling the sent air flow to be softer, and forming warm, cool and uncooled comfortable air.
The wind guide member 150 may include a rear side wind guide ring 151, a middle wind guide ring 152, and a front side wind guide ring 153, which are sequentially arranged from back to front, the rear side wind guide ring 151, the middle wind guide ring 152, and the front side wind guide ring 153 all have a front opening, a rear opening, and an airflow channel penetrating the front opening and the rear opening in the front-rear direction to define the through air duct 150b, and the front opening of the front side wind guide ring 153 is in butt joint with the front air outlet 111 b. The front section of the rear wind guide ring 151 is positioned radially inside the rear section of the middle wind guide ring 152 and is arranged at intervals, the front section of the middle wind guide ring 152 is positioned radially inside the rear section of the front wind guide ring 153 and is arranged at intervals, so that a rear annular jet orifice 150a is defined by the rear wind guide ring 151 and the middle wind guide ring 152, and a front annular jet orifice 150a is defined by the middle wind guide ring 152 and the front wind guide ring 153, and the two annular jet orifices 150a are distributed in the front and back direction, so that the airflow blown out by the front annular jet orifice 150a is guided to promote the airflow blown out by the rear annular jet orifice 150a to flow forwards, and the whole air supply distance and air supply amount are increased.
The inventors have creatively found that the air guide member 150 having two annular jet orifices 150a distributed in series in the front-rear direction not only significantly increases the air blowing distance but also greatly increases the air blowing amount as compared with the air guide member 150 having only one annular jet orifice 150 a.
The rear side wind guide ring 151, the middle wind guide ring 152, and the front side wind guide ring 153 of the wind guide member 150 may be constructed in one body to simplify the manufacturing process of the wind guide member 150 and facilitate the overall assembly of the wind guide member 150.
The peripheral wall of the front side wind guiding ring 153 comprises a first annular curved surface 153a, a second annular curved surface 153b and a third curved surface 153c which are sequentially distributed from back to front, the first annular curved surface 153a tapers from back to front, the second annular curved surface 153b tapers from back to front, the tapered section (namely the first annular curved surface 153a) of the front side wind guiding ring 153 can more effectively guide airflow to flow forwards, mixing of natural wind and heat exchange air is facilitated, air supply uniformity is improved, and the tapered section (namely the second annular curved surface 153b) of the front side wind guiding ring 153 effectively guides airflow to flow forwards, and meanwhile, the airflow channel of the front side wind guiding ring 153 is enlarged, so that the air supply range is enlarged.
The lower edge of the second annular curved surface 153b extends to the front outlet 111b, the third curved surface 153c is shaped such that the projections of the front end edge and the upper end edge on a vertical plane parallel to the front-rear direction are a front end edge projection line 1531 and an upper end edge projection line (not numbered), the projection of the front edge of the front outlet 111b on the vertical plane is a front outlet projection line 1111, the front end edge projection line 1531 and the front outlet projection line 1111 are in the same straight line, and the upper end edge projection line extends in the front-rear direction. Thus, the front end edge of the front side air guide ring 153 is forward inclined to match the forward inclined front wall 1110 of the casing 110, so that the air flow can be more smoothly and smoothly flowed to the front air outlet 111b, and the air supply efficiency is improved. Further, the air flow passing through the lower end edge of the second annular curved surface 153b of the air duct 150b is guided to the lower front side, and the air flow near the upper end edge of the third curved surface 153c is guided to the lower front side, so that the front side wind guiding ring 153 of the present embodiment can increase the downward blowing angle of the air flow, and further prevent the upward backflow of the air flow blown out from the front air outlet 111b, compared with the front side wind guiding ring extending forward in a divergent manner.
The rear air guide ring 151 can extend in a tapered manner from back to front, and the middle air guide ring 152 can extend in a tapered manner from back to front, so that the air flow at the rear side can flow forward more smoothly, and is fully mixed with the hot air, and the air supply uniformity is improved.
In the embodiment shown in the drawings, the fan volute 120 and the air guiding housing 140 are integrally designed, the centrifugal fan 130 is accommodated in the upper section 121 of the fan volute 120, and the lower section 122 of the fan volute 120 extends from the upper section 121 to the air guiding housing 140 in the forward and downward directions, so that the air flow is prevented from flowing to the air guiding housing 140 path through the fan volute 120 to some extent, and because the transition connection line is not smooth, a boundary layer effect occurs, and therefore, phenomena such as turbulent flow and turbulent flow of air can be avoided, and the air flow can flow to the air guiding housing 140 more smoothly.
The rear wall 1211 of the upper section 121 extends from top to bottom, the rear wall 1221 of the lower section 122 extends from the lower end of the rear wall 1211 of the upper section 121 to the lower side and forward, and the rear wall 141 of the air guiding housing 140 extends from the lower end of the rear wall 1221 of the lower section 122 to the lower side and forward. The rear wall of the casing 110 includes a rear wall upper section 1121 attached to the upper section 1211 and extending upward and downward, a rear wall middle section 1122 extending downward and forward from the lower end of the rear wall upper section 1121 and attached to the rear wall 1221 of the lower section 122, and a rear wall lower section 1123 extending downward from the lower end of the rear wall middle section 1122 and attached to the rear wall 141 of the air guide housing 140, and the rear air inlet 112a is opened in the rear wall lower section 1123.
In the embodiment, the fan volute 120, the air guide housing 140, and the rear wall and the front wall 1110 of the casing 110 are designed to have the above-mentioned special shapes and distribution forms, so that a larger air circulation space is provided behind and below the rear air inlet 112a, the intake volume and the intake smoothness of the rear air inlet 112a can be ensured, natural air can better enter the through air duct 150b of the air guide member 150 to be mixed with heat exchange air, and a more ideal air induction effect is achieved. Moreover, the indoor unit 100 of the wall-mounted air conditioner constructed in this way is of a novel style of being wide at the top and narrow at the bottom, and breaks through the form of the conventional wall-mounted air conditioner indoor unit 100, so that the transverse side surface of the indoor unit 100 can better fit the corner space of an indoor room, thereby being beneficial to saving the space occupied by the indoor unit 100 and better meeting the use requirements of users.
Fig. 5 is a schematic side cross-sectional view of the wall mounted air conditioner indoor unit 100 according to an embodiment of the present invention, wherein the first air deflector 104 and the second air deflector 105 are rotated to an initial position with partial overlap.
The indoor unit 100 further includes a first air deflector 104 and a second air deflector 105, the first air deflector 104 may be disposed near the front opening of the through air duct 150b, and configured to rotate around the vertical rotating shaft to open and close the front opening of the through air duct 150b, so that the air flow is blown to the indoor environment from the front air outlet 111 b; the second air deflector 105 is disposed near the rear opening of the through air duct 150b, and configured to rotate around another vertical rotation shaft to open and close the rear opening of the through air duct 150b, so that natural air can enter the through air duct 150b through the rear air inlet 112a to mix with heat exchange air, and the air flow blown out by the front air outlet 111b is relatively soft. In the indoor unit 100 of this embodiment, whether the front air outlet 111b supplies air to the indoor environment is selected by opening and closing the first air guide plate 104, and whether natural air is mixed in the heat exchange airflow blowing to the indoor environment is selected by opening and closing the second air guide plate 105, so that more air supply experiences are provided for the user, and diversified demands of the user are met.
The arrangement positions, shapes and sizes of the first air deflector 104 and the second air deflector 105 satisfy that: when the first air deflector 104 and the second air deflector 105 are both opened, the first air deflector 104 and the second air deflector 105 are configured to be driven to rotate to an initial position with partial overlapping and configured to be driven to synchronously rotate leftwards or rightwards from the initial position, so that the airflow direction of the through air duct 150b in the transverse direction (left-right direction) can be adjusted by the first air deflector 104 and the second air deflector 105, the airflow is sent out leftwards or rightwards from the front air outlet 111b, the airflow coverage range is enlarged, and the temperature uniformity of the indoor environment is improved.
In the embodiment shown in the drawings, the first air deflector 104 is arranged in the front side air deflector 153, the second air deflector 105 is arranged in the rear side air deflector 151, the first air deflector 104 and the second air deflector 105 are both circular, the first air deflector 104 can rotate clockwise by 90 ° from the closed position to the initial position, the second air deflector 105 can rotate counterclockwise by 90 ° from the closed position to the initial position, and the rear arc section of the first air deflector 104 in the initial position overlaps with the front arc section of the second air deflector 105 in the initial position.
The bottom wall of the air guide shell 140 may be opened with a bottom bypass port communicated with the air guide cavity, and the bottom bypass port is communicated with the bottom air outlet 111c to guide the air flow to the bottom air outlet 111c through the bottom bypass port for air supply, so that the air flow is directly blown downwards to the bottom surface, and the air guide shell is applicable to an air supply mode during heating, and realizes foot warming type air supply.
The indoor unit 100 may further include at least one third air guiding plate 106 disposed at the bottom outlet 111c and configured to be driven to rotate around respective transverse rotation shafts so as to close the bottom outlet 111c or guide the air outlet direction of the bottom outlet 111 c. The indoor unit 100 selects whether to supply air to the indoor environment through the bottom outlet 111c by opening and closing the third air guide plate 106, and further provides different air supply experiences for the user. In the embodiment shown in the drawings, two third air deflectors 106 distributed in the front-back direction are arranged at the bottom air outlet 111c, when both the third air deflectors 106 are closed, the bottom air outlet 111c can be completely closed, and when the third air deflectors 106 are opened, the rotation angle of the third air deflectors 106 can be controlled and adjusted, so as to guide the air blowing direction of the bottom air outlet 111 c.
The lateral side wall of the air guide shell 140 is provided with at least one side bypass port 140a communicated with the air guide cavity, the at least one side bypass port 140a is in one-to-one correspondence with the at least one side air outlet 111d and is correspondingly butted, and the side bypass port 140a is arranged on the lateral side wall of the air guide shell 140 to supply air to the corresponding side air outlet 111 d. In the embodiment shown in the drawings, there are two side air outlets 111d, the two side air outlets 111d are respectively opened on two lateral side walls of the casing 110, correspondingly, there are two side bypass ports 140a, and the two side bypass ports 140a are respectively opened on two lateral side walls of the air guiding casing 140.
The indoor unit 100 further includes two fourth air guide plate groups, which are in one-to-one correspondence with the two side bypass openings 140a, are disposed at the corresponding side bypass openings 140a, and include at least one fourth air guide plate 107, and each fourth air guide plate 107 is configured to be driven to rotate around a respective rotating shaft extending forward and backward so as to close the corresponding side air outlet 111d or guide an air flow blown out from the corresponding side air outlet 111 d.
The wall-mounted air conditioner indoor unit 100 of the present embodiment may select different air supply modes according to needs.
When the indoor unit 100 is in the cooling mode, both the first air deflector 104 and the second air deflector 105 are opened, both the third air deflector 106 and the fourth air deflector 107 are closed, and the indoor unit 100 blows air into the room through the front air outlet 111 b. The airflow enters the heat exchange air supply cavity from the top air inlet 111a, exchanges heat with the indoor heat exchanger 101, is pressurized and accelerated by the centrifugal fan 130, enters the fan volute 120, and enters the air guide shell 140 through rectification of the fan volute 120. The heat exchange air flow is blown forward from the annular jet opening 150a of the air guide member 150, and due to the flow guide effect of the rear air guide ring 151 of the air guide member 150, a sufficiently large negative pressure is formed in the through air duct 150b, so that a large amount of air in the surrounding environment of the rear air inlet 112a enters the through air duct 150b through the rear avoidance opening under the negative pressure effect, and then is mixed with the heat exchange air flow from the annular jet opening 150a, the temperature of the air flow blown out from the front air outlet 111b is increased, and the body feeling is more comfortable. In the indoor unit cooling process, the airflow blown out from the front outlet 111b can be guided by the first air guiding plate 104 and the second air guiding plate 105.
In the heating mode of the indoor unit 100, the first air deflector 104 and the second air deflector 105 are both closed, the third air deflector 106 and the fourth air deflector 107 are both opened, and the indoor unit 100 blows air into the room from the bottom air outlet 111c and the two side air outlets 111d, respectively. The airflow enters the heat exchange air supply cavity from the top air inlet 111a, exchanges heat with the indoor heat exchanger 101, is pressurized and accelerated by the centrifugal fan 130, enters the fan volute 120, and enters the air guide shell 140 through rectification of the fan volute 120. Because the first air deflector 104 and the second air deflector 105 are both closed, part of the air entering the air guide shell 140 flows to the bottom air outlet 111c through the bottom bypass port, and flows downwards to the indoor environment through the bottom air outlet 111 c; the other part of the air flows through the two side bypass ports 140a to the two side outlets 111d, and is blown into the indoor environment through the two side outlets 111 d. The air flow sent out by the bottom air outlet 111c is directly blown downwards, so that the air flow can directly reach the ground, and the leg and foot positions of a user can be quickly heated. Moreover, the two fourth air deflectors 107 on the left and right sides can guide the air flow sent out by the corresponding side air outlet 111d downwards, so that the air flow sent out by the two side air outlets 111d directly reaches the ground, the three air outlets are utilized to form vertical foot warming air flow at the same time, and the heating effect and the heating experience of a user are greatly improved.
In the cooling/heating mode of the indoor unit 100, another air blowing mode may be selected by adjusting the opening and closing of the first air guide plate 104, the second air guide plate 105, the third air guide plate 106, and the fourth air guide plate 107.
In this embodiment, the wall-mounted air conditioner indoor unit 100 may further include a water pan 103 and a sealing plate 102, which are disposed below the indoor heat exchanger 101, and are configured to support the indoor heat exchanger 101 and receive the condensed water flowing down from the indoor heat exchanger 101. The sealing plate 102 may be disposed behind the indoor heat exchanger 101, and an opening communicating with the air inlet 120a of the air supply portion is formed on a rear wall of the indoor heat exchanger 101, an upper end of the sealing plate abuts against a top wall of the casing 110, and a lower end of the sealing plate cooperates with the water pan 103 to seal a lower portion of the indoor heat exchanger 101, so that all air entering from the top air inlet 111a passes through the indoor heat exchanger 101 for heat exchange, that is, all air sucked by the centrifugal fan 130 is guaranteed to be heat exchange air, thereby improving cooling and heating effects. The indoor heat exchanger 101 may be a plate heat exchanger.
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 (10)
1. A wall-mounted air conditioner indoor unit comprising:
the heat exchange air supply cavity is defined in the machine shell, the machine shell is provided with a top air inlet, a front air outlet, a bottom air outlet and at least one side air outlet, the top air inlet is formed in the top wall of the machine shell, the front air outlet is formed in the lower region of the front wall of the machine shell, the bottom air outlet is formed in the bottom wall of the machine shell, the side air outlet is formed in the transverse side wall of the machine shell, and the front wall of the machine shell is obliquely inclined forwards from bottom to top;
the air supply assembly is arranged in the heat exchange air supply cavity and comprises an air supply part and an air guide part, an air supply fan is arranged in the air supply part, the air supply fan is configured to suck ambient air from the surrounding environment of the top air inlet and promote the air to flow to the air guide part, and the air guide part is configured to guide airflow blown out by the air supply fan to the front air outlet and/or the bottom air outlet and/or the at least one side air outlet;
the indoor heat exchanger is arranged in the heat exchange air supply cavity and is positioned on an air inlet flow path between the top air inlet and the air supply part;
the wind guide part includes:
the air guide shell is internally limited with an air guide cavity communicated with the fan volute, a front avoidance port communicated with the air guide cavity is formed in the area, opposite to the front air outlet, of the front side of the air guide shell, a bottom bypass port communicated with the air guide cavity is formed in the bottom wall of the air guide shell, and the bottom bypass port is in butt joint with the bottom air outlet so as to supply air to the bottom air outlet; the air guide shell is also provided with at least one side bypass opening communicated with the air guide cavity, the at least one side bypass opening corresponds to and is correspondingly butted with the at least one side air outlet one by one, and the side bypass opening is formed in the transverse side wall of the air guide shell so as to supply air to the corresponding side air outlet;
air guide component, set up in the air guide intracavity, its front end passes it to dodge the mouth to the preceding air outlet extends, air guide component has the through air duct that link up around extending and at least one around the annular jet port that the direction extends around preceding back around, the configuration of annular jet port is to with the heat transfer air current that air supply fan blew out guides extremely link up the air duct to blow the air current forward, in order to drive air current in the through air duct is sent forward to preceding air outlet.
2. The indoor unit of claim 1, wherein
The air supply part and the air guide part are distributed along the height direction of the shell;
the air supply fan is a centrifugal fan, and a rotating shaft of the centrifugal fan is arranged along the front-back direction;
the air supply portion includes: and the fan volute is arranged on the periphery of the centrifugal fan and communicated with the air guide part.
3. The indoor unit of claim 1, wherein
A rear avoidance opening is formed in the area, opposite to the through air duct, of the rear wall of the air guide shell;
and a rear air inlet is formed in the area, opposite to the rear avoidance opening, of the rear wall of the shell, so that when the annular jet opening blows air forward, ambient air around the rear air inlet is promoted to enter the through air channel and is mixed with heat exchange air introduced into the through air channel through the annular jet opening.
4. The indoor unit of claim 3, further comprising:
the first air deflector is arranged close to the front opening of the through air channel and configured to rotate around a vertical rotating shaft so as to open and close the front opening of the through air channel;
the second air deflector is arranged close to the rear opening of the through air channel and configured to rotate around the other vertical rotating shaft so as to open and close the rear opening of the through air channel;
when the first air deflector and the second air deflector are both opened, the first air deflector and the second air deflector are configured to be driven to rotate to an initial position with partial overlapping and configured to be driven to synchronously rotate leftwards or rightwards from the initial position so as to adjust the direction of the airflow.
5. The indoor unit of claim 1, further comprising:
at least one third air deflector arranged at the bottom air outlet and configured to be driven to rotate around respective transverse rotating shafts so as to close the bottom air outlet or guide the airflow blown out from the bottom air outlet;
the air guide shell is provided with at least one side air outlet, two side air outlets are respectively arranged on two transverse side walls of the shell, at least one side by-pass port is arranged on two transverse side walls of the air guide shell, and the two side by-pass ports are respectively arranged on two transverse side walls of the air guide shell;
the indoor unit further includes: and the two fourth air guide plate groups are in one-to-one correspondence with the two side bypass openings, are arranged at the corresponding side bypass openings and comprise at least one fourth air guide plate, and each fourth air guide plate is configured to be driven to rotate around a rotating shaft extending forwards and backwards so as to close the corresponding side air outlet or guide air flow blown out from the corresponding side air outlet.
6. The indoor unit of claim 1, wherein
The air guide component comprises a rear side air guide ring, a middle air guide ring and a front side air guide ring which are sequentially arranged from back to front;
the rear side air guide ring, the middle air guide ring and the front side air guide ring are respectively provided with a front opening, a rear opening and an airflow channel which is communicated with the front opening and the rear opening in a front-back mode so as to limit the through air duct, and the front opening of the front side air guide ring is in butt joint with the front air outlet;
the front section of the rear side wind guide ring is positioned on the radial inner side of the rear section of the middle wind guide ring and is arranged at intervals, the front section of the middle wind guide ring is positioned on the radial inner side of the rear section of the front side wind guide ring and is arranged at intervals, so that the rear side wind guide ring and the middle wind guide ring are utilized to limit the annular jet opening on the rear side, and the middle wind guide ring and the front side wind guide ring are utilized to limit the annular jet opening on the front side.
7. The indoor unit of claim 6, wherein
The peripheral wall of the front side wind guide ring comprises a first annular curved surface, a second annular curved surface and a third curved surface which are sequentially distributed from back to front;
the first annular curved surface is gradually reduced from back to front, the second annular curved surface is gradually expanded from back to front, and the lower end edge of the second annular curved surface extends to the front air outlet; the third curved surface is formed to make the projection of the front end edge and the upper end edge on a vertical plane parallel to the front-back direction be a front end edge projection line and an upper end edge projection line;
the front edge of the front air outlet projects on the vertical plane to form a front air outlet projection line, the front edge projection line and the front air outlet projection line are in the same straight line, and the upper edge projection line extends forwards and backwards.
8. The indoor unit of claim 3, wherein
The fan volute and the air guide shell are designed integrally, the upper section of the fan volute contains the air supply fan, and the lower section of the fan volute extends from the upper section to the air guide shell forwards and downwards;
the rear wall of the upper section extends from top to bottom, the rear wall of the lower section extends from the lower end of the rear wall of the upper section to the lower side and the front, and the rear wall of the air guide shell extends from the lower end of the rear wall of the lower section to the lower side and the front;
the rear wall of the casing comprises a rear wall upper section which is jointed with the rear wall of the upper section and extends up and down, a rear wall middle section which extends from the lower end of the rear wall upper section to the lower side and is jointed with the rear wall of the lower section, and a rear wall lower section which extends from the lower end of the rear wall middle section to the lower side and is jointed with the rear wall of the air guide casing;
the rear air inlet is formed in the lower section of the rear wall.
9. The indoor unit of claim 3, wherein
An air inlet of an air supply part is formed at the front end of the fan volute;
the indoor heat exchanger is vertically arranged on the front side of the air inlet of the air supply part;
the top air inlet is arranged in the front area of the top wall of the shell and is positioned above the front side of the indoor heat exchanger.
10. The indoor unit of claim 9, further comprising:
the water receiving tray is arranged below the indoor heat exchanger and used for supporting the indoor heat exchanger and receiving condensed water flowing down from the indoor heat exchanger;
and the sealing plate is arranged behind the indoor heat exchanger, an opening communicated with the air inlet of the air supply part is formed on the rear wall of the sealing plate, the upper end of the sealing plate is abutted against the top wall of the shell, and the lower end of the sealing plate is matched with the water receiving disc to seal the lower part of the indoor heat exchanger, so that all air entering from the top air inlet passes through the indoor heat exchanger for heat exchange.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599889.2A CN112178773B (en) | 2019-07-04 | 2019-07-04 | Wall-mounted air conditioner indoor unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910599889.2A CN112178773B (en) | 2019-07-04 | 2019-07-04 | Wall-mounted air conditioner indoor unit |
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| CN112178773A CN112178773A (en) | 2021-01-05 |
| CN112178773B true CN112178773B (en) | 2021-09-21 |
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| CN113819591A (en) * | 2021-08-13 | 2021-12-21 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and control method thereof |
| CN116123611A (en) * | 2021-11-15 | 2023-05-16 | 青岛海尔空调器有限总公司 | Wall-mounted air conditioner indoor unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205137689U (en) * | 2015-11-13 | 2016-04-06 | 青岛海尔空调器有限总公司 | Air -conditioning indoor unit |
| CN107940572A (en) * | 2017-11-30 | 2018-04-20 | 广东美的制冷设备有限公司 | Wall indoor unit and air conditioner |
| CN209042570U (en) * | 2018-10-19 | 2019-06-28 | 美的集团武汉制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| WO2020110085A1 (en) * | 2018-11-29 | 2020-06-04 | Aermec S.P.A. | Fan coil |
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2019
- 2019-07-04 CN CN201910599889.2A patent/CN112178773B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205137689U (en) * | 2015-11-13 | 2016-04-06 | 青岛海尔空调器有限总公司 | Air -conditioning indoor unit |
| CN107940572A (en) * | 2017-11-30 | 2018-04-20 | 广东美的制冷设备有限公司 | Wall indoor unit and air conditioner |
| CN209042570U (en) * | 2018-10-19 | 2019-06-28 | 美的集团武汉制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| WO2020110085A1 (en) * | 2018-11-29 | 2020-06-04 | Aermec S.P.A. | Fan coil |
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