CN112178775A - Wall-mounted air conditioner indoor unit - Google Patents
Wall-mounted air conditioner indoor unit Download PDFInfo
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- CN112178775A CN112178775A CN201910600709.8A CN201910600709A CN112178775A CN 112178775 A CN112178775 A CN 112178775A CN 201910600709 A CN201910600709 A CN 201910600709A CN 112178775 A CN112178775 A CN 112178775A
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- Prior art keywords
- air
- wall
- fan
- air guide
- opening
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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
Abstract
The invention provides a wall-mounted air conditioner indoor unit, which comprises a casing, an air supply assembly and at least one indoor heat exchanger, wherein the top wall of the casing is provided with a top air inlet, two lateral side walls of the casing are respectively provided with a side air inlet, the front wall of the casing is provided with a front air outlet, 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 the two side air inlets and the surrounding environment of the top air inlet and drive the air to flow to the air guide part, the air guide part is configured to guide airflow blown out by the air supply fan to the front air outlet, the front air outlet is arranged in the lower area of the front wall of the casing, the front wall of the casing is inclined forwards from bottom to top, the airflow blown out by the front air outlet is blocked by the inclined front wall of, the heating effect 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 ensure stable operation of a double suction centrifugal fan of an indoor unit of a wall-mounted air conditioner.
It is a further object of the present invention to increase the amount of air delivered by an indoor unit of a wall-mounted air conditioner and to increase the distance of the delivered air.
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 shell, the shell is provided with a top air inlet, two side air inlets and a front air outlet, the top air inlet is formed in the top wall of the shell, the two side air inlets are respectively formed in the two transverse side walls of the shell, the front air outlet is formed in the lower area of the front wall of the shell, and the front wall of the shell is obliquely inclined 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 two side air inlets and 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 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, the two side air inlets 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 double-suction centrifugal fan, a rotating shaft of the double-suction centrifugal fan is arranged along a direction parallel to the width direction of the shell, so that the double-suction centrifugal fan is transversely arranged, and two transverse ends of the double-suction centrifugal fan are respectively provided with a fan air inlet;
the at least one indoor heat exchanger is two indoor heat exchangers, the two indoor heat exchangers are in one-to-one correspondence with the two fan air inlets, are respectively arranged on the corresponding fan air inlets and an air inlet flow path between the side air inlets which are positioned on the same side with the fan air inlets, and are respectively arranged to exchange heat with air entering through the corresponding side air inlets and air entering through the top air inlet.
Optionally, the air supply part further comprises a fan volute arranged on the periphery of the double-suction centrifugal fan and communicated with the air guide part;
the wind guide part includes:
the air guide shell is internally limited with an air guide cavity communicated with the fan volute, and the area of the front side of the air guide shell, which is opposite to the front air outlet, is provided with a front avoidance opening communicated with the air guide cavity;
the air guide component is arranged in the air guide cavity, the front end of the air guide component penetrates through the front avoiding opening to be in butt joint with the front air outlet, the air guide component is provided with a through air channel which extends forwards and backwards and is through from front to back and at least one annular jet opening which extends around the front to back direction, and the annular jet opening is configured to guide heat exchange airflow blown out by the double-suction centrifugal fan to the through air channel and blow the airflow forwards so as to drive the airflow in the through air channel to be sent forwards to the front 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 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 rear side air guide ring and the middle air guide ring are arranged at intervals, the front section of the middle air guide ring is positioned at the radial inner side of the rear section of the front side air guide ring and is arranged at intervals, so that the rear side air guide ring and the middle air guide ring are used for limiting the annular jet opening at the rear side, and the middle air guide ring and the front side air guide ring are used for limiting the annular jet opening at the front side.
Optionally, the front side wind guide ring is arranged in a forward tilting mode from bottom to top;
the front edge of the front side air guide ring is projected on a vertical plane parallel to the front-back direction to form a front edge projection line, the front edge of the front air outlet is projected on the vertical plane to form the front air outlet projection line, and the front edge projection line is parallel to the front air outlet projection line.
Optionally, at least a partial area of a projection of the front air outlet on a vertical plane parallel to the front-rear direction is located below a front side of a projection of the side air intake on the vertical plane.
Optionally, the rear side wind deflector comprises a ring body and a ring-shaped part formed on the outer periphery of the front section of the ring body, the ring body is provided with the airflow channel which is longitudinally communicated with the front opening and the rear opening of the ring body;
the annular part and the middle wind guide ring limit the annular jet opening on the rear side, the annular part is gradually reduced from back to front, and the rear end edge of the annular part is abutted against the inner side of the rear wall of the wind guide shell.
Optionally, the air guide housing includes:
the front side and the upper side of the rear cover shell are both open, and the rear wall of the rear cover shell is provided with the rear avoidance opening;
the front opening of the matching mounting ring is the front avoidance opening;
and the front decorative ring is sleeved on the periphery of the matching mounting ring so as to shield the matching mounting ring and the rear housing.
Optionally, the wall-mounted air conditioner indoor unit further comprises:
the two water receiving discs correspond to the two indoor heat exchangers one by one, are respectively arranged below the corresponding indoor heat exchangers, and are used for supporting the corresponding indoor heat exchangers and receiving condensed water flowing down from the indoor heat exchangers;
and the two closing parts are in one-to-one correspondence with the two indoor heat exchangers and are respectively arranged to close the front side, the rear side, the upper side and the lower side of the area between the corresponding indoor heat exchanger and the fan air inlet positioned on the same side with the indoor heat exchanger, so that the air entering the fan air inlet is the heat exchange air after the heat exchange with the corresponding indoor heat exchanger.
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 provided by the invention has the advantages that the air inlet volume and the heat exchange efficiency of the indoor unit are increased by arranging the double-suction centrifugal fan and the two indoor heat exchangers at special positions, and meanwhile, the air inlet difference of the air inlets at the left side and the right side is adjusted by combining the special positions of the air inlets of the indoor unit, so that the stable operation of the double-suction centrifugal fan is ensured, the air supply stability is improved, and the noise of the fan is reduced.
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, in the wall-mounted air conditioner indoor unit, the front side air guide ring of the air guide member is integrally arranged in a downward-bending mode, so that the air outlet of the front air outlet is blown out to the lower part of the front side, the problem of hot air flow backflow during heating is further avoided, and the downward-blown hot air flow can directly reach the ground, so that foot-warming air supply is realized; in addition, due to the downward and downward special arrangement of the air guide component and the special design of the relative positions of the front air outlet and the two side air inlets, airflow blown out from the front air outlet can be prevented from flowing back to the two side air inlets on the left side and the right side, and the heating effect is further improved.
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 side view of a wall mounted air conditioner indoor unit according to one embodiment of the present invention;
fig. 2 is a schematic perspective view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;
fig. 3 is an exploded view of a wall mounted air conditioner indoor unit according to one embodiment of the present invention;
fig. 4 is an exploded view of a double suction centrifugal fan and a fan volute of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;
fig. 5 is a schematic front view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention, in which a front panel is hidden;
fig. 6 is a schematic cross-sectional side view of a wall mounted air conditioner indoor unit according to one embodiment of the present invention;
fig. 7 is a schematic view of a wind guide portion of a wall mounted air conditioner indoor unit according to an embodiment of the present invention; and
fig. 8 is an exploded view of a wind guide portion of an indoor unit of a wall-mounted air conditioner according to an embodiment of the present invention.
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. 1, 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. As shown in fig. 5, 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 schematic side view of a wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention, fig. 2 is a schematic perspective view of the wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention, and fig. 3 is an exploded schematic view of the wall-mounted 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 112 having a forward opening and a front panel 111 disposed at the forward opening of the casing 112, the casing 112 and the front panel 111 cooperating to define a heat exchanging air feeding chamber. The casing 112 may be formed of a top wall, side walls, a rear wall, and a bottom wall, and the front panel 111 closes a forward opening of the casing 112, thereby closing the heat exchanging blast chamber.
The casing 110 is provided with a top air inlet 112a, two side air inlets 112b and a front air outlet 111a, the top air inlet 112a is disposed on a top wall of the casing 110, the two side air inlets 112b are disposed on two lateral sidewalls of the casing 110, respectively, and the front air outlet 111a is disposed on a front wall of the casing 110. In the embodiment shown in fig. 1 to 3, the top wall of the casing 110 is the top wall of the cover 112, the two lateral side walls of the casing 110 are the two lateral side walls of the cover 112, and the front wall of the casing 110 is the front wall of the front panel 111.
The air supply assembly is arranged in the heat exchange air supply cavity and comprises an air supply part 120 and an air guide part 130, and an air supply fan used for generating heat exchange air flow is arranged in the air supply part 120. The blower fan is configured to suck in ambient air from the surroundings of the two side air inlets 112b and the surroundings of the top air inlet 112a and to cause the air to flow to the air guide portion 130, and the air guide portion 130 is configured to guide an air flow blown by the blower fan to the front air outlet 111a to blow air from the front air outlet 111a to the indoor environment.
And the at least one indoor heat exchanger 101 is arranged in the heat exchange air supply cavity and is positioned on an air supply flow path between the top air inlet 112a, the two side air inlets 112b and the air supply part 120. 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 particular, in this embodiment, the front air outlet 111a is opened in the lower region of the front wall of the casing 110, and the front wall of the casing 110 is inclined forward from bottom to top, so that the inclined front wall of the indoor unit 100 is used to block the hot air flow blown out from the front air outlet 111a from flowing back upward, so that the hot air flow blown out from the front air outlet 111a is sucked into the indoor unit 100 to exchange heat with the indoor heat exchanger 101 after sufficient heat exchange with the indoor ambient air, thereby improving the heating effect.
In this embodiment, the type and the position of the air supply fan, and the positions of the air supply part 120 and the air guide part 130 may be various, for example, the air supply fan may be a centrifugal fan, an axial flow fan, an oblique flow fan, etc., and the positions of the air supply part 120 and the air guide part 130 may be determined according to the type of the air supply fan.
Fig. 4 is an exploded view of the double suction centrifugal fan 121 and the fan scroll 122 of the wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention, and fig. 5 is a front view of the wall-mounted air conditioner indoor unit 100 according to an embodiment of the present invention, in which the front panel 111 is hidden.
In the embodiment shown in the drawings, the air supply portion 120 and the air guide portion 130 may be distributed along the height direction of the casing 110, the air supply fan may be a double-suction centrifugal fan 121, a rotating shaft of the double-suction centrifugal fan 121 is disposed along a direction parallel to the width direction of the casing, so that the double-suction centrifugal fan 121 is disposed along a transverse direction, and two transverse ends of the double-suction centrifugal fan 121 are respectively provided with a fan air inlet 121 a. The air supply portion 120 further includes a blower volute 122 disposed at an outer periphery of the double-suction centrifugal blower 121, and the blower volute 122 is communicated with the air guide portion 130 to guide the airflow to the air guide portion 130.
The at least one indoor heat exchanger 101 may be two indoor heat exchangers 101, the two indoor heat exchangers 101 correspond to the two fan air inlets 121a one by one, and are respectively disposed on an air inlet flow path between the corresponding fan air inlet 121a and the side air inlet 112b located on the same side as the fan air inlet 121a, and are respectively configured to exchange heat with air entering through the corresponding side air inlet 112b and air entering through the top air inlet 112 a. That is to say, the two indoor heat exchangers 101 are distributed left-to-right, the left indoor heat exchanger 101 is located between the left side air inlet 112b and the left fan air inlet 121a of the double-suction centrifugal fan 121, the right indoor heat exchanger 101 is located between the right side air inlet 112b and the right fan air inlet 121a of the double-suction centrifugal fan 121, after heat exchange is performed between a part of ambient air entering the casing 110 from the top air inlet 112a and the ambient air entering from the left side air inlet 112b and the left indoor heat exchanger 101, the ambient air enters the fan volute 122 through the left fan air inlet 121a of the double-suction centrifugal fan 121, and enters the casing 110 through the top air inlet 112 a; another part of the ambient air and the ambient air entering from the right side air inlet 112b exchange heat with the right side indoor heat exchanger 101, and then enter the fan volute 122 through the fan air inlet 121a on the right side of the double-suction centrifugal fan 121.
The indoor unit 100 of this embodiment, by providing the double-suction centrifugal fan 121 and the two indoor heat exchangers 101 at the special positions, increases the intake air volume and the heat exchange efficiency of the indoor unit 100, and by combining the special positions of the respective air inlets of the indoor unit 100, realizes adjustment of the intake air difference between the two side air inlets 112b on the left and right sides, ensures stable operation of the double-suction centrifugal fan 121, improves the air supply stability, and reduces the fan noise. For example, when the air intake resistance on the left and right sides is large, the top air inlet 112a adaptively distributes the left and right air intake ratio due to the same left and right negative pressure conditions inside the double-suction centrifugal fan 121, so as to automatically compensate the air intake difference between the two side air inlets 112b on the left and right sides. In the existing wall-mounted air conditioner indoor unit 100, due to the limitation of the installation environment of a user, the left space and the right space of the indoor unit 100 are limited, and the air inlet proportion of the left side and the right side of the indoor unit 100 is often different, so that the heat exchange efficiency is low, the fan operation is unstable, the air supply is easy to be unstable, the refrigerating and heating effects are poor, and even abnormal sounds appear. The indoor unit 100 of the present embodiment effectively solves the problem by the design of the air inlet and the special design of the air supply fan.
Fig. 6 is a schematic cross-sectional side view of a wall mounted air conditioner indoor unit 100 according to an embodiment of the present invention, fig. 7 is a schematic cross-sectional side view of a wind guide portion 130 of the wall mounted air conditioner indoor unit 100 according to an embodiment of the present invention, and fig. 8 is an exploded schematic view of the wind guide portion 130 of the wall mounted air conditioner indoor unit 100 according to an embodiment of the present invention.
In some embodiments, the air guiding portion 130 includes an air guiding housing 1340 and an air guiding member 1310, and an air guiding cavity is defined in the air guiding housing 1340 and is communicated with the fan volute 122, for example, an upper end of the air guiding cavity has an air flow inlet 130c which is butted with an air flow outlet at a lower end of the fan volute 122. The front side of the air guide housing 1340 is provided with a front avoidance opening 135b communicating with the air guide cavity in an area opposite to the front air outlet 111a, the air guide member 1310 is disposed in the air guide cavity, the front end of the air guide member passes through the front avoidance opening 135b to be in butt joint with the front air outlet 111a, the air guide member 1310 is provided with a through air duct 130b extending in the front-back direction and penetrating in the front-back direction, and at least one annular jet opening 130a extending in the front-back direction, and the annular jet opening 130a is configured to guide the heat exchange air flow blown out by the double-suction centrifugal fan 121 to the through air duct 130b and blow the air flow forward so as to drive the air flow in the through air duct 130. The heat exchange air flow discharged by the double-suction centrifugal fan 121 is accelerated by the annular jet port 130a and is rapidly blown forward to the indoor environment through the through air duct 130b, so that the air supply distance is increased.
In order to cooperate with the through air duct 130b, a rear avoiding opening (not shown) may be formed in a region of the rear wall of the air guide housing 1340 opposite to the through air duct 130b, and a rear air inlet 134a 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 130a blows air forward, ambient air around the rear air inlet 134a may be promoted to enter the through air duct 130b to mix with heat exchange air introduced into the through air duct 130b by the annular jet opening 130a, thereby increasing air supply, and making the air flow sent out softer, and forming warm but not dry, cool but not cold comfortable air.
The rear wall of the casing 110 may include a rear wall upper section 1121, a rear wall transition section 1123 extending from the lower end of the rear wall upper section 1121 to the lower side forward, and a rear wall lower section 1122 extending from the lower end of the rear wall transition section 1123 to the lower side forward, which are sequentially distributed from top to bottom, and a protruding boss 1124 protruding backward is further formed at a region where the rear wall transition section 1123 and the rear wall lower section 1122 meet the front air outlet 111a, and the rear air inlet 134a may be formed on the rear wall upper section 1121 and sequentially extend downward to the rear wall transition section 1123 and the protruding boss 1124, and the wall-hung indoor unit 100 is mounted on the wall through the rear wall upper section 1121 thereof, and since the rear wall transition section 1123 and the rear wall lower section 1122 are further away from the wall with respect to the rear wall upper section 1121, air circulation spaces are provided behind and below the rear air inlet 134a, thereby ensuring the air intake amount and the smoothness of the rear air inlet 134a, so that the natural wind can better enter the through air channel 130b of the wind guide member 130 to be mixed with the heat exchange wind, and a more ideal wind inducing effect is realized.
In some embodiments, the wind guiding member 1310 includes a rear side wind guiding ring 131, a middle wind guiding ring 132 and a front side wind guiding ring 133, which are sequentially arranged from back to front, each of the rear side wind guiding ring 131, the middle wind guiding ring 132 and the front side wind guiding ring 133 has a front opening, a rear opening and a front-back airflow channel passing through the front opening and the rear opening to define a through air channel 130b, the front opening of the front side wind guiding ring 133 is abutted to the front air outlet 111a, the rear side wind guiding ring 131 and the middle wind guiding ring 132 are arranged at an interval, a front section of the middle wind guiding ring 132 is located at a radial inner side of a rear section of the front side wind guiding ring 131 and is arranged at an interval to define a rear annular jet opening 130a by the rear side wind guiding ring 131 and the middle wind guiding ring 132, and the front side wind guiding ring 133 defines a front annular jet opening 130a by the middle wind guiding ring 132, so that two annular jet openings 130a distributed from front to back are constructed, so that the airflow guide from the front annular jet port 130a promotes the airflow from the rear annular jet port 130a to flow forward, thereby increasing the overall blowing distance and blowing amount. The inventors have creatively found that the air guide member 1310 having two annular jet ports 130a sequentially distributed in the front-rear direction not only significantly increases the air supply distance but also greatly increases the air supply amount, compared to the air guide member 1310 having only one annular jet port 130 a.
The rear side wind guide ring 131, the middle wind guide ring 132, and the front side wind guide ring 133 of the wind guide member 1310 may be constructed in one body to simplify the manufacturing process of the wind guide member 1310 and facilitate the overall assembly of the wind guide member 1310.
The front side wind guiding ring 133 can be arranged to incline forwards from bottom to top, the projection of the front end edge of the front side wind guiding ring 133 on a vertical plane parallel to the front-back direction is a front end edge projection line, the projection of the front edge of the front air outlet 111a on the vertical plane is a front air outlet projection line, and the front end edge projection line is parallel to the front air outlet projection line. That is to say, the front side wind guiding ring 133 is wholly downward-downward type, and the downward-downward degree of the downward-downward type satisfies that the front end edge projection line is parallel to the front air outlet projection line, so that not only the front opening of the front side wind guiding ring 133 is matched with the front air outlet 111a, and the smooth and steady flowing performance of the airflow is increased, but also the whole wind guiding direction of the front section of the through air duct 130b is changed, so that the wind outlet of the front air outlet 111a is blown out to the front side lower part, the problem of hot airflow backflow during heating is further avoided, and the downward-blown hot airflow can directly reach the ground, and the foot-warming type air supply is realized.
At least a partial area of the projection of the front air outlet 111a on the vertical plane parallel to the front-back direction is located below the front side of the projection of the side air inlets 112b on the vertical plane, so that the problem of backflow of hot air towards the top air inlet 112a is further avoided, and meanwhile, the airflow blown by the front air outlet 111a can be prevented from flowing back towards the two side air inlets 112b on the left and right sides by combining the special design of the front air guide ring 133.
Rear side wind guide ring 131 may include a ring body 1311 and a ring portion 1312 formed on an outer peripheral edge of a front section of ring body 1311, ring body 1311 has an airflow passage penetrating front and rear openings thereof, ring portion 1312 and intermediate wind guide ring 132 define a rear side ring jet port 130a, ring portion 1312 tapers from rear to front, and a rear end edge of ring portion 1312 abuts against an inner side of a rear wall of wind guide casing 1340. The rear-side air guide ring 131 designed in this way can effectively guide the air flow to flow forward by using the tapered annular portion 1312, so as to facilitate the mixing of the ventilation air and the natural air, and simultaneously prevent the rear side of the rear-side air guide ring 131 from leaking air, thereby ensuring that the air flow discharged by the double-suction centrifugal fan 121 can completely enter the through air duct 130b from the annular jet opening 130a at the rear side and the annular jet opening 130a at the front side.
The middle air guiding ring 132 may be disposed to be inclined forward from bottom to top, and the air guiding direction of the substantially middle section of the through air duct 130b is changed to guide the airflow to the front side and the lower side. The middle wind guiding ring 132 can be gradually contracted and then gradually expanded from back to front, and is matched with the gradually contracted annular part 1312 of the rear side wind guiding ring 131, so that the air flow can be more effectively guided, the mixing of natural wind and heat exchanging wind is facilitated, and the air supply uniformity is improved. The front side wind guide ring 133 can extend in a gradually expanding manner from back to front, so that the outlet area of the front side wind guide ring 133 is enlarged while the airflow is effectively guided to flow forwards, and the air supply range is enlarged.
In some embodiments, the air guiding housing 1340 may include a rear casing 134 with an open front side and an open upper side, a matching mounting ring 135 penetrating from front to back, and a front bezel 136, where a rear wall of the rear casing 134 is formed with a rear escape opening 134a, the matching mounting ring 135 is disposed at the open front side of the rear casing 134, and defines the air guiding cavity accommodating the air guiding member 1310 with the rear casing 134, a front opening of the matching mounting ring 135 is the front escape opening 135b, and the front bezel 136 is sleeved on the periphery of the matching mounting ring 135 to shield the matching mounting ring 135 and the rear casing 134, that is, the matching mounting ring 135 and the rear casing 134 are not visible from the front of the wall-mounted indoor unit 100, so as to ensure the front surface of the wall-mounted indoor unit 100 to be beautiful. The overall layout of the air guide portion 130 thus constructed is compact and occupies a small space.
The rear housing 134 can be fixed to the rear wall of the casing 110, the fitting ring 135 can be disposed at the front opening of the rear housing 134 to define the air guiding cavity with the rear housing 134, the air guiding member 1310 and the fitting ring 135 can be in snap fit and can be fixed to the rear housing 134 by screws, the front bezel 136 and the fitting ring 135 can also be in snap fit and can be fixed to the rear housing 134 by screws, so as to ensure the compact structure and stable assembly of the air guiding housing 1340 and the air guiding member 1310.
In some embodiments, the wall-mounted air conditioner indoor unit 100 further includes two water-receiving trays 103 and two closing members 102, where the two water-receiving trays 103 correspond to the two indoor heat exchangers 101 one by one, and are respectively disposed below the corresponding indoor heat exchangers 101, and are used for supporting the corresponding indoor heat exchangers 101 and receiving the condensed water flowing down from the indoor heat exchangers 101. The two closing members 102 correspond to the two indoor heat exchangers 101 one by one, and are respectively arranged to close the front side, the rear side, the upper side and the lower side of the area between the corresponding indoor heat exchanger 101 and the fan air inlet 121a located on the same side as the indoor heat exchanger 101, so that the air entering the fan air inlet 121a is the heat exchange air after exchanging heat with the corresponding indoor heat exchanger 101, that is, the air sucked by the fan air inlets 121a on the two sides of the double-suction centrifugal fan 121 is all the air exchanging heat with the corresponding indoor heat exchanger 101, and the cooling and heating effects of the wall-mounted air conditioner indoor unit 100 are improved.
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 shell, the shell is provided with a top air inlet, two side air inlets and a front air outlet, the top air inlet is formed in the top wall of the shell, the two side air inlets are respectively formed in the two transverse side walls of the shell, the front air outlet is formed in the lower area of the front wall of the shell, and the front wall of the shell is obliquely inclined 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 two side air inlets and 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 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, the two side air inlets and the air supply part.
2. The wall mounted air conditioner indoor unit according to 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 double-suction centrifugal fan, a rotating shaft of the double-suction centrifugal fan is arranged along a direction parallel to the width direction of the shell, so that the double-suction centrifugal fan is transversely arranged, and two transverse ends of the double-suction centrifugal fan are respectively provided with a fan air inlet;
the at least one indoor heat exchanger is two indoor heat exchangers, the two indoor heat exchangers are in one-to-one correspondence with the two fan air inlets, are respectively arranged on the corresponding fan air inlets and an air inlet flow path between the side air inlets which are positioned on the same side with the fan air inlets, and are respectively arranged to exchange heat with air entering through the corresponding side air inlets and air entering through the top air inlet.
3. The wall mounted air conditioner indoor unit according to claim 2, wherein
The air supply part also comprises a fan volute which is arranged on the periphery of the double-suction centrifugal fan and is communicated with the air guide part;
the wind guide part includes:
the air guide shell is internally limited with an air guide cavity communicated with the fan volute, and the area of the front side of the air guide shell, which is opposite to the front air outlet, is provided with a front avoidance opening communicated with the air guide cavity;
the air guide component is arranged in the air guide cavity, the front end of the air guide component penetrates through the front avoiding opening to be in butt joint with the front air outlet, the air guide component is provided with a through air channel which extends forwards and backwards and is through from front to back and at least one annular jet opening which extends around the front to back direction, and the annular jet opening is configured to guide heat exchange airflow blown out by the double-suction centrifugal fan to the through air channel and blow the airflow forwards so as to drive the airflow in the through air channel to be sent forwards to the front air outlet.
4. The wall mounted air conditioner indoor unit according to claim 3, 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.
5. The wall mounted air conditioner indoor unit according to claim 4, 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 rear side air guide ring and the middle air guide ring are arranged at intervals, the front section of the middle air guide ring is positioned at the radial inner side of the rear section of the front side air guide ring and is arranged at intervals, so that the rear side air guide ring and the middle air guide ring are used for limiting the annular jet opening at the rear side, and the middle air guide ring and the front side air guide ring are used for limiting the annular jet opening at the front side.
6. The wall mounted air conditioner indoor unit according to claim 5, wherein
The front side wind guide ring is arranged in a forward inclining mode from bottom to top;
the front edge of the front side air guide ring is projected on a vertical plane parallel to the front-back direction to form a front edge projection line, the front edge of the front air outlet is projected on the vertical plane to form the front air outlet projection line, and the front edge projection line is parallel to the front air outlet projection line.
7. The wall mounted air conditioner indoor unit according to claim 6, wherein
At least partial area of the projection of the front air outlet on a vertical plane parallel to the front-back direction is positioned below the front side of the projection of the side air inlet on the vertical plane.
8. The wall mounted air conditioner indoor unit according to claim 5, wherein
The rear side air guide ring comprises a ring body and an annular part formed on the outer periphery of the front section of the ring body, and the ring body is provided with the air flow channel which penetrates through the front opening and the rear opening of the ring body from front to rear;
the annular part and the middle wind guide ring limit the annular jet opening on the rear side, the annular part is gradually reduced from back to front, and the rear end edge of the annular part is abutted against the inner side of the rear wall of the wind guide shell.
9. The wall mounted air conditioner indoor unit of claim 8, wherein
The air guide housing includes:
the front side and the upper side of the rear cover shell are both open, and the rear wall of the rear cover shell is provided with the rear avoidance opening;
the front opening of the matching mounting ring is the front avoidance opening;
and the front decorative ring is sleeved on the periphery of the matching mounting ring so as to shield the matching mounting ring and the rear housing.
10. The wall mounted air conditioner indoor unit according to claim 2, further comprising:
the two water receiving discs correspond to the two indoor heat exchangers one by one, are respectively arranged below the corresponding indoor heat exchangers, and are used for supporting the corresponding indoor heat exchangers and receiving condensed water flowing down from the indoor heat exchangers;
and the two closing parts are in one-to-one correspondence with the two indoor heat exchangers and are respectively arranged to close the front side, the rear side, the upper side and the lower side of the area between the corresponding indoor heat exchanger and the fan air inlet positioned on the same side with the indoor heat exchanger, so that the air entering the fan air inlet is the heat exchange air after the heat exchange with the corresponding indoor heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600709.8A CN112178775A (en) | 2019-07-04 | 2019-07-04 | Wall-mounted air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600709.8A CN112178775A (en) | 2019-07-04 | 2019-07-04 | Wall-mounted air conditioner indoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112178775A true CN112178775A (en) | 2021-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910600709.8A Pending CN112178775A (en) | 2019-07-04 | 2019-07-04 | Wall-mounted air conditioner indoor unit |
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| Country | Link |
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| CN (1) | CN112178775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648664A (en) * | 2021-01-06 | 2021-04-13 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN113465025A (en) * | 2021-07-08 | 2021-10-01 | 挪宝能源(南京)有限公司 | Movable fan coil with drawer type condensed water disc |
-
2019
- 2019-07-04 CN CN201910600709.8A patent/CN112178775A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648664A (en) * | 2021-01-06 | 2021-04-13 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN113465025A (en) * | 2021-07-08 | 2021-10-01 | 挪宝能源(南京)有限公司 | Movable fan coil with drawer type condensed water disc |
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