CN108180547B - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
- Publication number
- CN108180547B CN108180547B CN201810008783.6A CN201810008783A CN108180547B CN 108180547 B CN108180547 B CN 108180547B CN 201810008783 A CN201810008783 A CN 201810008783A CN 108180547 B CN108180547 B CN 108180547B
- Authority
- CN
- China
- Prior art keywords
- air
- heat exchange
- air outlet
- centrifugal fan
- indoor unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
-
- 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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- 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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides an indoor unit of an air conditioner, comprising: the shell is provided with an air inlet positioned at the upper part of the shell and an air outlet positioned at the lower part of the shell; at least two centrifugal fans, each centrifugal fan is provided with two air suction ports respectively positioned at two lateral sides of the centrifugal fan and an air discharge port positioned at the lower part of the centrifugal fan, so that air is sucked from the air inlet of the shell respectively and blown downwards to the air outlet; the heat exchange device is arranged between the air inlet and at least two centrifugal fans; the at least two centrifugal fans are arranged in the casing in a transverse side-by-side and interval manner and are configured to enable adjacent two air inlets of adjacent two centrifugal fans to be opposite. According to the indoor unit of the air conditioner, air is caused to flow into the impellers from the two sides of the fan in an equalizing manner through the air supply system with the centrifugal fan, so that the eccentric hidden danger of the fan is eliminated, and the service life of the indoor unit of the air conditioner is prolonged.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to an indoor unit of an air conditioner.
Background
The bearing loads of the motor side and the bearing side of the cross flow fan of the air supply system of the existing air conditioner indoor unit are different, and the eccentric phenomenon can occur after long-term use, so that bearing sound or unstable airflow sound is generated, and the service life of the air conditioner is influenced. In addition, the air outlet of the cross-flow fan is smaller, and the heat exchange efficiency is limited.
Disclosure of Invention
An object of the present invention is to provide an indoor unit of an air conditioner having a long service life.
A further object of the present invention is to increase the air outlet area of an indoor unit of an air conditioner to improve the heat exchange efficiency of the indoor unit of the air conditioner.
In particular, the present invention provides an indoor unit of an air conditioner, comprising:
the shell is provided with an air inlet positioned at the upper part of the shell and an air outlet positioned at the lower part of the shell;
at least two centrifugal fans, each of which is provided with two air inlets respectively positioned at two lateral sides of the centrifugal fans and an air outlet positioned at the lower part of the centrifugal fans, so as to suck air from the air inlets of the machine shell respectively and blow the air downwards to the air outlets; and
the heat exchange device is arranged between the air inlet and the at least two centrifugal fans; wherein the method comprises the steps of
The at least two centrifugal fans are arranged in the shell in a transverse side-by-side and interval mode, and are configured to enable adjacent two air inlets of adjacent two centrifugal fans to be opposite.
Further, the at least two centrifugal fans include:
the first centrifugal fan is provided with a first cylinder body which is transversely arranged at the left side inside the shell, a first air suction port and a second air suction port are respectively arranged at the left side and the right side of the first cylinder body, and a first air exhaust port is arranged at the lower part of the first cylinder body so as to suck air from the air inlets of the shell respectively and blow the air downwards to the air outlets;
the second centrifugal fan is provided with a second cylinder body which is transversely arranged on the right side inside the shell, a third air suction port and a fourth air suction port are respectively arranged on the left side and the right side of the second cylinder body, and a second air outlet is arranged at the lower part of the second cylinder body so as to suck air from the air inlets of the shell respectively and blow the air downwards to the air outlets; wherein the method comprises the steps of
The second air inlet and the third air inlet are arranged to be opposite to each other at intervals.
Further, the first centrifugal fan is provided with a first air outlet air duct extending towards the air outlet and gradually expanding along the transverse direction, and the second centrifugal fan is provided with a second air outlet air duct extending towards the air outlet and gradually expanding along the transverse direction and partially abutting the first air outlet air duct;
the first air outlet air duct and the second air outlet air duct are configured so that the first air outlet and the second air outlet which are respectively positioned at the extending tail ends of the first air outlet air duct and the second air outlet air duct are positioned in a curved surface where the air outlet is positioned; and is also provided with
The edges of the air channels on the adjacent side of the first air outlet air channel and the second air outlet air channel are configured to be arranged in a crossing mode, so that the first air outlet and the second air outlet form a seamless air outlet surface at the air outlet.
Further, the first centrifugal fan and the second centrifugal fan are configured to be controlled independently to supply air at the same or different wind speeds, respectively, or simultaneously.
Further, the heat exchange device is configured to be arranged outside the at least two centrifugal fans in a covering manner, so that air entering the shell from the air inlet is sucked into the air inlet after flowing through the heat exchange device.
Further, the heat exchange device is provided with a first heat exchange part and a second heat exchange part which are arranged side by side along the transverse direction, so as to be respectively covered and buckled outside the first centrifugal fan and the second centrifugal fan.
Further, the first heat exchange part and the second heat exchange part are respectively configured to have a top heat exchange surface, a front heat exchange surface and a side heat exchange surface so as to respectively shield the top, the front and the left and the right sides of the first centrifugal fan and the second centrifugal fan; and is also provided with
The top heat exchange surface is configured to have a size greater than the centrifugal fan in a front-rear direction.
Further, the heat exchange device is provided with a plurality of sections of heat exchange pipelines which are arranged on the top heat exchange surface, the front heat exchange surface and the side heat exchange surfaces; and is also provided with
The heat exchange lines on both lateral sides of the first and second heat exchange portions are denser than the heat exchange lines on the top and front portions of the first and second heat exchange portions.
Further, the indoor unit is wall-mounted, the casing comprises a framework, a housing covered on the framework and a panel covered on the front side of the housing, and the panel and the framework jointly define the air outlet; and
the bottom of the panel is rotatably provided with an air deflector which is configured to controllably open or close the air outlet.
Further, the at least two centrifugal fans and the heat exchange device are arranged on the framework; and is also provided with
The top rear end of the heat exchange device is propped against the framework, and the bottom end of the front part of the heat exchange device is flush with the bottom end of the panel.
According to the indoor unit of the air conditioner, at least two centrifugal fans with air suction on two lateral sides symmetrically are arranged, so that air is caused to flow into the impellers uniformly from two sides of the centrifugal fans, axial loads on two lateral sides of each centrifugal fan are the same, axial force on the impellers is further eliminated, potential eccentric hazards of the fans are eliminated, and the service life of the indoor unit of the air conditioner is prolonged.
Furthermore, the air outlet of the indoor unit of the air conditioner is provided with the seamless air outlet surface by arranging the exhaust ports of the two centrifugal fans in the indoor unit side by side, so that the air outlet area of the indoor unit of the air conditioner is increased, and the heat exchange efficiency of the indoor unit of the air conditioner is improved.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
fig. 1 is a schematic perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic exploded view of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view of an indoor unit of an air conditioner according to another embodiment of the present invention, wherein a panel is in an open state and a heat exchanging device is hidden, showing a centrifugal fan installed in a cabinet;
fig. 4 is a schematic partial enlarged view of the indoor unit of the air conditioner shown in fig. 3, illustrating the adjacency of the first air outlet duct and the second air outlet duct.
FIG. 5 is a schematic perspective view of an indoor unit of an air conditioner according to still another embodiment of the present invention, wherein a panel is in an opened state, showing a heat exchanging device installed in a cabinet;
fig. 6 is a schematic front view of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view taken along section line A-A in FIG. 6;
fig. 8 is a schematic perspective view of a heat exchange device according to one embodiment of the invention.
Detailed Description
Fig. 1 is a schematic perspective view of an indoor unit 1 of an air conditioner according to an embodiment of the present invention. The indoor unit 1 may generally include a cabinet. The cabinet has an air inlet 22 at its upper portion and an air outlet 11 at its lower portion. The indoor unit 1 further includes at least two centrifugal fans and a heat exchanging apparatus 300 disposed in the casing. Each centrifugal fan has two air inlets respectively located at both lateral sides thereof and an air outlet located at a lower portion thereof to suck air from the air inlets 22 of the casing respectively and blow down to the air outlets 11. The heat exchanging device 300 may be disposed between the air inlet 22 and at least two centrifugal fans to separate the centrifugal fans from the air inlet 22 and exchange heat with air flowing to the centrifugal fans. In particular, at least two centrifugal fans are disposed in the casing side by side in the lateral direction at intervals, and are arranged such that adjacent two suction ports of adjacent two centrifugal fans are opposed.
That is, the inside of the shell is provided with at least two double-suction centrifugal fans with air inlets oppositely arranged. Specifically, the left and right impellers of each double-suction centrifugal fan are configured to be symmetrically arranged so as to ensure that the two sides of the centrifugal fan have the same air inlet quantity.
According to the indoor unit 1 of the air conditioner, at least two centrifugal fans with bilateral symmetrical air suction are arranged, so that air is caused to flow into impellers uniformly from two sides of the centrifugal fans, axial loads on two lateral sides of each centrifugal fan are the same, axial force on the impellers is further eliminated, hidden danger of fan eccentricity is eliminated, and the service life of the indoor unit 1 of the air conditioner is prolonged.
Fig. 2 is a schematic exploded view of an air conditioner indoor unit 1 according to one embodiment of the present invention.
In some embodiments of the present invention, the indoor unit 1 may be wall-mounted. Specifically, referring to fig. 2, the casing may include a frame 10, a casing 20 covered on the frame 10, and a panel 30 covered on the front side of the casing 20, where the panel 30 and the frame 10 together define an air outlet 11. The top of the housing 20 may be provided with an air inlet grill 21 to form an air inlet 22. The bottom of the panel 30 is rotatably provided with an air deflector 40 configured to controllably open or close the air outlet 11. Further, at least two centrifugal fans and heat exchange devices 300 may be provided on the skeleton 10. That is, the centrifugal fans arranged laterally and side by side do not affect the normal appearance of the wall-mounted indoor unit 1 when being mounted inside the wall-mounted indoor unit 1, so that the wall-mounted indoor unit 1 can keep the original small space occupation amount, and the whole indoor unit 1 is kept small and attractive.
Further, in some embodiments of the invention, the at least two centrifugal fans include a first centrifugal fan 100 and a second centrifugal fan 200. Specifically, the first centrifugal fan 100 may have a first cylinder 1010 disposed at the left side of the inside of the cabinet in a lateral direction, and the left and right sides of the first cylinder 1010 are respectively provided with a first suction port and a second suction port 1012, and the lower portion of the first cylinder 1010 is provided with a first discharge port 1013 to suck air from the air inlets 22 of the cabinet, respectively, and blow down to the air outlets 11. Accordingly, the second centrifugal fan 200 may have a second cylinder 2010 transversely disposed at the right side of the inside of the cabinet, and the second cylinder 2010 is provided at the left and right sides thereof with a third air suction port and a fourth air suction port 2012, respectively, and the second cylinder 2010 is provided at the lower portion thereof with a second air discharge port 2013 to suck air from the air inlets 22 of the cabinet, respectively, and blow down to the air outlets 11. The second air inlet 1012 and the third air inlet are arranged to be opposed to each other with a gap therebetween. Thus, the air entering the casing and flowing to the adjacent two air suction inlets of the two centrifugal fans can be sucked by the respective air suction inlets of the two centrifugal fans substantially equally, so that the second air suction inlet 1012 and the third air suction inlet have approximately equal air suction amounts, and the impeller stress balance and the normal and smooth operation of the first centrifugal fan 100 and the second centrifugal fan 200 are ensured.
Fig. 3 is a schematic perspective view of an air conditioner indoor unit 1 according to another embodiment of the present invention, in which a panel 30 is in an open state and a heat exchanging device 300 is omitted, showing a centrifugal fan installed in a cabinet. Fig. 4 is a schematic partial enlarged view of the air conditioner indoor unit 1 shown in fig. 3, in which the adjacencies of the first air outlet duct 1014 and the second air outlet duct 2014 are shown.
Referring to fig. 2-4, in some embodiments of the invention, the first centrifugal fan 100 has a first air outlet duct 1014 extending toward the air outlet 11 and diverging in a lateral direction, and the second centrifugal fan 200 has a second air outlet duct 2014 extending toward the air outlet 11 and diverging in a lateral direction and partially adjoining the first air outlet duct 1014. The first and second outlet air ducts 1014 and 2014 are configured such that the first and second outlet ports 1013 and 2013, respectively, at the extended ends thereof are located within the curved surface where the outlet 11 is located. In particular, referring to fig. 4, the duct edges of the adjacent sides of the first and second outlet ducts 1014, 2014 are configured to cross so that the first and second outlets 1013, 2013 form a seamless outlet face at the outlet 11.
Specifically, the two air outlet channels of the two centrifugal fans extend downwards from the impeller parts of the centrifugal fans respectively and are bent and extended forwards to the air outlet 11 of the indoor unit 1. That is, the fan volutes of the two centrifugal fans may be respectively configured as their respective air outlet ducts. Therefore, air pressurized and blown out from the centrifugal fan impeller flows to the air outlet 11 under the guidance of the volute of the fan, and the air outlet strength at the air outlet 11 is ensured.
Further, the two air outlet channels are configured to extend gradually in the lateral direction so as to abut at the air outlet 11. That is, the air outlet 11 of the indoor unit 1 may be directly constituted by the first and second air outlets 1013, 2013 of the first and second centrifugal fans 100, 200 that are in contact with each other. Specifically, the first and second outlet air ducts 1014 and 2014 have a relatively small cross-sectional area near their respective impeller portions and a large cross-sectional area near the outlet 11 such that the right side edge of the first outlet 1013 and the left side edge of the second outlet 2013 intersect.
Further, each exhaust port is configured such that its laterally extending edge near the bottom of the rear portion of the indoor unit 1 is shorter than its laterally extending edge near the front portion of the indoor unit 1. Thus, when the air-out airflow accelerates to flow downwards to the air outlet 11, the air-out airflow is promoted to diffuse forwards and upwards, the air-out area is increased, and the indoor unit 1 is prevented from directly blowing out air towards the front lower part of the indoor unit, so that discomfort of users in the area is avoided.
Further, the cross contact position of the two exhaust ports is approximately in an "X" shape, so that the exhaust ports are kept symmetrical, and the air outlet 11 has an air outlet area as large as possible when the air output and the air outlet position of the exhaust ports at the two sides are approximately equal.
The air outlet air duct of the inner side of the cross butt joint of the two air outlets of the indoor unit 1 is provided with an air duct wall which extends from the middle of each air outlet air duct to the other air outlet to guide air flow. Therefore, the independent air outlet channels of the centrifugal fans avoid the problem that heat exchange air flows blown out from the impeller parts of the two centrifugal fans interfere with each other in the shell to influence the air outlet speed. Meanwhile, the two heat exchange air flows can be further guided to be mixed after flowing out from the air outlet 11 and flow forwards together, so that a plurality of fan air outlets jointly form a continuous air outlet surface, the area of the air outlet 11 is increased, the air supply range is increased, and the motor power is reduced on the premise of realizing the same air outlet quantity.
In other embodiments of the present invention, the indoor unit 1 of the air conditioner may further have more double suction centrifugal fans such as a third centrifugal fan and/or a fourth centrifugal fan. I.e. the interior of the indoor unit 1 may have three, four or more centrifugal fans arranged at a lateral interval. In particular, the third centrifugal fan may be arranged, for example, laterally outside, i.e. to the left (not shown in the figures), of the first centrifugal fan 100. Accordingly, the fourth centrifugal fan may be disposed, for example, laterally outside, i.e., to the right (not shown in the drawings) of the second centrifugal fan 200.
Further, the air inlet of the third centrifugal fan facing the first centrifugal fan 100 may be disposed opposite to the first air inlet, and the air inlet of the fourth centrifugal fan facing the second centrifugal fan 200 may be disposed opposite to the fourth air inlet 2012. Therefore, the indoor unit 1 can realize the air suction balance of a plurality of air suction ports of a plurality of centrifugal fans, thereby ensuring the stress balance and the normal and stable operation of the plurality of centrifugal fans.
Further, in the present embodiment, the adjacent position between the third centrifugal fan and the air outlet duct of the first centrifugal fan 100 and the adjacent position between the fourth centrifugal fan and the air outlet duct of the second centrifugal fan 200 may also be configured to be disposed in a crossing manner as described above, so as to increase the air outlet surface of the indoor unit 1.
In some embodiments of the invention, the first centrifugal fan 100 and the second centrifugal fan 200 may be configured to be independently controlled to supply air at the same or different wind speeds, respectively, or simultaneously. In other embodiments, each centrifugal fan may be configured to be controlled independently to adapt to different air output requirements, so as to enhance the practicability of the indoor unit 1.
Fig. 5 is a schematic perspective view of an air conditioner indoor unit 1 according to still another embodiment of the present invention, in which a panel 30 is in an opened state, showing a heat exchanging apparatus 300 installed in a cabinet.
In some embodiments of the present invention, referring to fig. 5, the heat exchange device 300 may be configured to be disposed outside at least two centrifugal fans in a covering manner, so that air entering the casing from the air inlet 22 is sucked into the air inlet after flowing through the heat exchange device 300, and thus, air inside the casing needs to pass through the heat exchange device 300 before reaching the centrifugal fans, thereby ensuring effective heat exchange of the indoor unit 1.
Fig. 6 is a schematic front view of an air conditioner indoor unit 1 according to one embodiment of the present invention. Fig. 7 is a schematic cross-sectional view taken along section line A-A in fig. 6.
In some embodiments of the present invention, the heat exchanging device 300 has a first heat exchanging part 3010 and a second heat exchanging part 3020 arranged side by side in a lateral direction to cover the outside of the first centrifugal fan 100 and the second centrifugal fan 200, respectively.
Specifically, referring to fig. 5 to 7, the first and second heat exchanging parts 3010 and 3020 are each configured to have respective top, front and side heat exchanging surfaces to shield the top, front and left and right sides of the first and second centrifugal fans 100 and 200, respectively. Thus, the heat exchanging device 300 can cover the centrifugal fan from at least the front side, the upper side, and the left and right sides. Further, the top heat exchange surface is configured to have a size larger than that of the centrifugal fan in the front-rear direction. The top rear end of the heat exchange device 300 can be abutted against and connected to the framework 10, the bottom end of the front part of the heat exchange device 300 is flush with the bottom end of the panel 30, and is abutted against and connected to the outer side surface of the air outlet duct, so that the problem that air in the casing bypasses the heat exchange device 300 and is directly sucked by the centrifugal fan is avoided.
According to the indoor unit 1, through the split cover buckle type heat exchange device 300, a plurality of centrifugal fans are respectively provided with independent wrapped heat exchange structures, so that the heat exchange area is increased to the greatest extent, the distance between the heat exchange device and an air suction port of the fan is shortened, the wind resistance is reduced, and the heat exchange efficiency is improved.
In some embodiments of the present invention, the first heat exchanging portion 3010 and the second heat exchanging portion 3020 may be controlled to start and operate independently, so as to form an independent heat exchanging and air supplying subsystem with their respective centrifugal fans, thereby enhancing the practicality and flexibility of use of the indoor unit 1.
Fig. 8 is a schematic perspective view of a heat exchange device 300 according to one embodiment of the invention.
In some embodiments of the present invention, referring to fig. 8, the heat exchanging device has a plurality of heat exchanging pipes disposed at the top heat exchanging surface, the front heat exchanging surface, and the side heat exchanging surfaces, and the heat exchanging pipes at both lateral sides of the first and second heat exchanging parts 3010 and 3020 are denser than the heat exchanging pipes at the top and front of the first and second heat exchanging parts 3010 and 3020. Specifically, the four side heat exchange surfaces at the two lateral ends of each of the first heat exchange portion 3010 and the second heat exchange portion 3020 may be provided with more heat exchange pipes. Alternatively, the transverse ends of the top heat exchange surface and the front heat exchange surface of the two heat exchange parts can be provided with heat exchange pipelines which are densely distributed, and the middle positions of the top heat exchange surface and the front heat exchange surface can be provided with relatively fewer heat exchange pipelines. That is, the areas B of the first heat exchanging part 3010 and the second heat exchanging part 3020, which are respectively located at two lateral sides of the first centrifugal fan 100 and the second centrifugal fan 200, have denser heat exchanging pipelines, so as to exchange heat with the air having a relatively fast flow rate in the areas in time. Accordingly, the C region of the first heat exchanging portion 3010 and the second heat exchanging portion 3020, which are respectively located at the top front portions of the first centrifugal fan 100 and the second centrifugal fan 200, may have a relatively sparse heat exchanging pipeline, so as to avoid that cold or heat in the region cannot be timely conducted to air, which causes abnormal local temperature of the heat exchanging device 300, and malfunction. That is, the heat exchange device 300 may be configured to increase the distribution of heat exchange pipes in a region where the air flow rate is fast for the air flow state around the centrifugal fan, so as to further improve the heat exchange efficiency of the air inside the casing and ensure the normal operation of the indoor unit 1.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (7)
1. An indoor unit of an air conditioner, comprising:
the shell is provided with an air inlet positioned at the upper part of the shell and an air outlet positioned at the lower part of the shell;
at least two centrifugal fans, each of which is provided with two air inlets respectively positioned at two lateral sides of the centrifugal fans and an air outlet positioned at the lower part of the centrifugal fans, so as to suck air from the air inlets of the machine shell respectively and blow the air downwards to the air outlets; and
the heat exchange device is arranged between the air inlet and the at least two centrifugal fans; wherein the method comprises the steps of
The at least two centrifugal fans are arranged in the shell in a transverse side-by-side and interval manner, and are configured to enable adjacent two air inlets of adjacent two centrifugal fans to be opposite; and is also provided with
The at least two centrifugal fans include:
the first centrifugal fan is provided with a first cylinder body which is transversely arranged at the left side inside the shell, a first air suction port and a second air suction port are respectively arranged at the left side and the right side of the first cylinder body, and a first air exhaust port is arranged at the lower part of the first cylinder body so as to suck air from the air inlets of the shell respectively and blow the air downwards to the air outlets;
the second centrifugal fan is provided with a second cylinder body which is transversely arranged on the right side inside the shell, a third air suction port and a fourth air suction port are respectively arranged on the left side and the right side of the second cylinder body, and a second air outlet is arranged at the lower part of the second cylinder body so as to suck air from the air inlets of the shell respectively and blow the air downwards to the air outlets; wherein the method comprises the steps of
The second air suction port and the third air suction port are arranged to be oppositely arranged at intervals; and is also provided with
The heat exchange device is configured to be arranged outside the at least two centrifugal fans in a covering way, so that air entering the shell from the air inlet is sucked into the air inlet after flowing through the heat exchange device; and is also provided with
The heat exchange device is provided with a first heat exchange part and a second heat exchange part which are arranged side by side along the transverse direction so as to be respectively covered and buckled outside the first centrifugal fan and the second centrifugal fan; and is also provided with
The first heat exchange part and the second heat exchange part are respectively configured to have respective top heat exchange surfaces so as to shield the tops of the first centrifugal fan and the second centrifugal fan respectively; and is also provided with
The top heat exchange surfaces are configured to have a size greater than that of the centrifugal fan in the front-rear direction; and is also provided with
The indoor unit is wall-mounted.
2. The indoor unit of claim 1, wherein,
the first centrifugal fan is provided with a first air outlet air duct which extends towards the air outlet and gradually expands along the transverse direction, and the second centrifugal fan is provided with a second air outlet air duct which extends towards the air outlet and gradually expands along the transverse direction and is partially adjacent to the first air outlet air duct;
the first air outlet air duct and the second air outlet air duct are configured so that the first air outlet and the second air outlet which are respectively positioned at the extending tail ends of the first air outlet air duct and the second air outlet air duct are positioned in a curved surface where the air outlet is positioned; and is also provided with
The edges of the air channels on the adjacent side of the first air outlet air channel and the second air outlet air channel are configured to be arranged in a crossing mode, so that the first air outlet and the second air outlet form a seamless air outlet surface at the air outlet.
3. The indoor unit of claim 1, wherein,
the first centrifugal fan and the second centrifugal fan are configured to be controlled independently to supply air at the same or different wind speeds, respectively, or simultaneously.
4. The indoor unit of claim 1, wherein,
the first heat exchange part and the second heat exchange part are respectively configured to be provided with a front heat exchange surface and a side heat exchange surface respectively so as to shield the front part, the left side and the right side of the first centrifugal fan and the second centrifugal fan respectively.
5. The indoor unit of claim 4, wherein,
the heat exchange device is provided with heat exchange pipelines which are arranged on the top heat exchange surface, the front heat exchange surface and the side heat exchange surfaces in a multi-stage manner; and is also provided with
The heat exchange lines on both lateral sides of the first and second heat exchange portions are denser than the heat exchange lines on the top and front portions of the first and second heat exchange portions.
6. The indoor unit of claim 1, wherein,
the shell comprises a framework, a housing covered on the framework and a panel covered on the front side of the housing, and the panel and the framework jointly define the air outlet; and
the bottom of the panel is rotatably provided with an air deflector which is configured to controllably open or close the air outlet.
7. The indoor unit of claim 6, wherein,
the at least two centrifugal fans and the heat exchange device are arranged on the framework; and is also provided with
The top rear end of the heat exchange device is propped against the framework, and the bottom end of the front part of the heat exchange device is flush with the bottom end of the panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008783.6A CN108180547B (en) | 2018-01-04 | 2018-01-04 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810008783.6A CN108180547B (en) | 2018-01-04 | 2018-01-04 | Indoor unit of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108180547A CN108180547A (en) | 2018-06-19 |
| CN108180547B true CN108180547B (en) | 2023-05-19 |
Family
ID=62549914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810008783.6A Active CN108180547B (en) | 2018-01-04 | 2018-01-04 | Indoor unit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108180547B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758825A (en) * | 2018-07-27 | 2018-11-06 | 青岛海尔空调器有限总公司 | Wall-hanging air conditioner indoor unit |
| CN109798595A (en) * | 2019-02-01 | 2019-05-24 | 广东美的制冷设备有限公司 | Air conditioner |
| US20220373204A1 (en) * | 2021-05-24 | 2022-11-24 | Lg Electronics Inc. | Air-conditioning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11237072A (en) * | 1998-02-24 | 1999-08-31 | Fujitsu General Ltd | Air conditioning equipment |
| JP2004347311A (en) * | 2003-04-30 | 2004-12-09 | Fujitsu General Ltd | Air conditioner |
| CN203949289U (en) * | 2014-06-26 | 2014-11-19 | 广东美的暖通设备有限公司 | Air-cooled ducted air conditioner |
| CN104964344A (en) * | 2015-06-16 | 2015-10-07 | 广东美的制冷设备有限公司 | Air conditioner cabinet |
| CN205578320U (en) * | 2016-05-09 | 2016-09-14 | 宁波先锋电器制造有限公司 | Double wind wheel centrifugal fan and use air cooler and air purifier of this fan |
| CN207936252U (en) * | 2018-01-04 | 2018-10-02 | 青岛海尔空调器有限总公司 | Air conditioner room unit |
-
2018
- 2018-01-04 CN CN201810008783.6A patent/CN108180547B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11237072A (en) * | 1998-02-24 | 1999-08-31 | Fujitsu General Ltd | Air conditioning equipment |
| JP2004347311A (en) * | 2003-04-30 | 2004-12-09 | Fujitsu General Ltd | Air conditioner |
| CN203949289U (en) * | 2014-06-26 | 2014-11-19 | 广东美的暖通设备有限公司 | Air-cooled ducted air conditioner |
| CN104964344A (en) * | 2015-06-16 | 2015-10-07 | 广东美的制冷设备有限公司 | Air conditioner cabinet |
| CN205578320U (en) * | 2016-05-09 | 2016-09-14 | 宁波先锋电器制造有限公司 | Double wind wheel centrifugal fan and use air cooler and air purifier of this fan |
| CN207936252U (en) * | 2018-01-04 | 2018-10-02 | 青岛海尔空调器有限总公司 | Air conditioner room unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108180547A (en) | 2018-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108180547B (en) | Indoor unit of air conditioner | |
| CN108644905B (en) | Air outlet duct structure and air conditioner | |
| CN108709250B (en) | Cabinet air conditioner indoor unit | |
| CN105890099B (en) | A kind of supply air system and indoor unit and air-conditioning using it | |
| WO2016119473A1 (en) | Air conditioning indoor unit cooling exchange system | |
| CN212431089U (en) | Jet device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit | |
| CN109237790B (en) | Through-flow air duct structure, warm air blower and air conditioner with same | |
| EP2821717B1 (en) | Wind direction controller and air conditioner with the same | |
| CN113217995A (en) | Wall-mounted air conditioner indoor unit | |
| CN208312552U (en) | Air conditioner room unit | |
| CN212319883U (en) | Air conditioner indoor unit and air conditioner | |
| CN210118842U (en) | Air conditioner | |
| CN207936252U (en) | Air conditioner room unit | |
| CN207936253U (en) | Air conditioner room unit | |
| CN109539529B (en) | Air duct piece, fan air duct assembly and air conditioner | |
| CN216838660U (en) | Clothes airing machine main machine and clothes airing machine | |
| CN114076352A (en) | Jet device for wall-mounted air conditioner indoor unit and wall-mounted air conditioner indoor unit | |
| CN113710903A (en) | Fluid discharge duct assembly for air conditioning unit | |
| WO2017206643A1 (en) | Air supply system and indoor unit and air conditioner using same | |
| CN219934114U (en) | Air conditioner indoor unit and air conditioner | |
| CN218379625U (en) | Air duct structure and air conditioner with same | |
| EP4317810A1 (en) | Wall-mounted air conditioner | |
| CN213453957U (en) | Air conditioner outdoor unit and air conditioner | |
| CN218915142U (en) | Air conditioner | |
| CN219735501U (en) | High-efficient even air-out's super cold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230614 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |