CN112484278A - Air duct assembly and air conditioner with same - Google Patents

Air duct assembly and air conditioner with same Download PDF

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Publication number
CN112484278A
CN112484278A CN201910860959.5A CN201910860959A CN112484278A CN 112484278 A CN112484278 A CN 112484278A CN 201910860959 A CN201910860959 A CN 201910860959A CN 112484278 A CN112484278 A CN 112484278A
Authority
CN
China
Prior art keywords
air
air duct
inlet
wind wheel
duct assembly
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.)
Pending
Application number
CN201910860959.5A
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Chinese (zh)
Inventor
宋英杰
王锡栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, GD Midea Air Conditioning Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201910860959.5A priority Critical patent/CN112484278A/en
Publication of CN112484278A publication Critical patent/CN112484278A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/0236—Ducting arrangements with ducts including air distributors, e.g. air collecting boxes with at least three openings
    • 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
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • 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
    • F24F2013/205—Mounting a ventilator fan therein

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

The invention discloses an air duct assembly and an air conditioner with the same, wherein the air duct assembly comprises: the air conditioner comprises a first shell, a second shell and a fan, wherein an accommodating cavity is formed in the first shell, a plurality of air outlets communicated with the accommodating cavity are formed in the peripheral wall of the first shell, and an air duct inlet is formed in one axial end face of the first shell; fan subassembly, fan subassembly include motor and centrifugal wind wheel, and centrifugal wind wheel establishes and holds the intracavity, and the output shaft and the centrifugal wind wheel of motor are connected. According to the air duct assembly, axial air inlet and radial air outlet of the air duct assembly can be realized, and the structure of the air duct assembly is simpler and more compact. In addition, a plurality of spaced air outlets are arranged, so that the air speed of each air outlet can be increased, the air supply distance is increased, and the requirements of users are met. In addition, a plurality of air outlets can break up wind, realize gentle wind sense.

Description

Air duct assembly and air conditioner with same
Technical Field
The invention relates to the technical field of air treatment equipment, in particular to an air duct assembly and an air conditioner with the same.
Background
In the related art, the air outlet speed of the air duct assembly of the air conditioner is low, the air supply distance is not far enough, and the use requirements of users cannot be met.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an air duct assembly which can realize axial air inlet and radial air outlet and has a longer air supply distance.
The invention further provides an air conditioner which comprises the air duct assembly.
An air duct assembly according to an embodiment of the present invention includes: the air conditioner comprises a first shell, a second shell and a fan, wherein an accommodating cavity is formed in the first shell, a plurality of air outlets communicated with the accommodating cavity are formed in the peripheral wall of the first shell, and an air duct inlet is formed in one axial end face of the first shell; the fan subassembly, the fan subassembly includes motor and centrifugal wind wheel, centrifugal wind wheel establishes hold the intracavity, the output shaft of motor with centrifugal wind wheel connects.
According to the air duct assembly provided by the embodiment of the invention, the air duct inlet is arranged on one axial end face of the accommodating cavity of the first shell, the plurality of air outlets are arranged on the peripheral wall of the accommodating cavity, the centrifugal wind wheel is arranged in the accommodating cavity, so that airflow entering from the air duct inlet can be radially thrown out of the centrifugal wind wheel under the action of the centrifugal wind wheel and then is discharged from the air outlets on the peripheral wall of the accommodating cavity, the air duct assembly can realize axial air inlet and radial air outlet, and the structure of the air duct assembly is simpler and more compact. In addition, a plurality of spaced air outlets are arranged, so that the air speed of each air outlet can be increased, the air supply distance is increased, and the requirements of users are met. In addition, a plurality of air outlets can break up wind, realize gentle wind sense.
According to some embodiments of the invention, the plurality of air outlets are spaced apart in a circumferential direction of the first housing.
According to some embodiments of the invention, a surface of each of the outlets is parallel to an axis of the first housing.
According to some embodiments of the present invention, the outer peripheral wall of the first casing is provided with a plurality of protrusions, the plurality of protrusions correspond to the plurality of air outlets one to one, the protrusions define an air outlet channel, one end of the air outlet channel is communicated with the accommodating cavity, and the other end of the air outlet channel is configured as the air outlet.
In some embodiments of the present invention, the air outlets are located on the same plane.
In some embodiments of the present invention, the axes of the plurality of wind outlet channels are parallel.
According to some embodiments of the invention, the cross-section of the outlet is formed in a circular, oval or polygonal shape.
According to some embodiments of the invention, an edge of the at least one air outlet remote from the air duct inlet is flush with an axial end face of the first housing remote from the air duct inlet.
According to some embodiments of the invention, the area enclosed by the outer contour line of each outlet opening is capable of accommodating at least one area of a circle with a diameter of 8 mm.
According to some embodiments of the invention, the centrifugal wind wheel has a wind wheel inlet opposite to the air duct inlet, the wind wheel inlet has a diameter D, a distance between a surface of the centrifugal wind wheel away from the air duct inlet and a wall surface of the accommodating cavity away from the air duct inlet is H, and H satisfies: h is more than or equal to 0.02D.
In some embodiments of the invention, in a direction from one end of the accommodating cavity far away from the air outlet to one end close to the air outlet, a distance between a surface of the centrifugal wind wheel far away from the air duct inlet and a wall surface of the accommodating cavity far away from the air duct inlet gradually increases.
In some embodiments of the present invention, a distance between an end of the surface of the centrifugal wind wheel far away from the air outlet and the wall surface of the accommodating cavity far away from the air duct inlet is H1, a distance between an end of the surface of the centrifugal wind wheel far away from the air outlet and the wall surface of the accommodating cavity far away from the air duct inlet is H2, and the following are satisfied: h1 is not less than H2 is not less than 5H 1.
According to some embodiments of the invention, the centrifugal wind wheel has a wind wheel inlet opposite to the wind channel inlet, the wind wheel inlet has a diameter D, the total area of projections of the plurality of wind outlets in a plane parallel to the axis of the centrifugal wind wheel and perpendicular to the axis of the centrifugal wind wheel is S, and the following are satisfied: s < pi D2/4。
According to some embodiments of the invention, a wall surface of the accommodating cavity far away from the air duct inlet is provided with an accommodating groove, and the motor is arranged in the accommodating groove.
According to some embodiments of the invention, the motor is disposed outside the first housing and connected to the first housing, and an output shaft of the motor passes through the air duct inlet and is connected to the centrifugal wind wheel.
An air conditioner according to an embodiment of the present invention includes: the air inlet channel is defined in the second shell, and an air inlet communicated with the air inlet channel is formed in the second shell; the heat exchanger is arranged in the air inlet channel and is opposite to the air inlet; in the air duct assembly, the first shell is connected with the second shell, and the air duct inlet is communicated with the air inlet channel.
According to the air conditioner provided by the embodiment of the invention, the air duct inlet is arranged on one axial end face of the accommodating cavity of the first shell, the plurality of air outlets are arranged on the peripheral wall of the accommodating cavity, the centrifugal wind wheel is arranged in the accommodating cavity, so that airflow entering from the air duct inlet can be radially thrown out of the centrifugal wind wheel under the action of the centrifugal wind wheel and then is discharged from the air outlets on the peripheral wall of the accommodating cavity, the air duct component can realize axial air inlet and radial air outlet, and the structure of the air duct component is simpler and more compact. In addition, a plurality of spaced air outlets are arranged, so that the air speed of each air outlet can be increased, the air supply distance is increased, and the requirements of users are met. In addition, a plurality of air outlets can break up wind, realize gentle wind sense.
According to some embodiments of the invention, the second housing comprises: a chassis; the supporting shell is arranged on the chassis, the supporting shell and the chassis define the air inlet channel together, an air inlet communicated with the air inlet channel is formed in the side wall of the supporting shell, the heat exchanger is arranged at the position of the air inlet, and the first shell is located above the supporting shell and connected with the supporting shell.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a perspective view of a partial structure of an air conditioner according to an embodiment of the present invention;
fig. 2 is a front view of a partial structure of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
fig. 5 is a side view of a partial structure of an air conditioner according to an embodiment of the present invention;
fig. 6 is a plan view of a partial structure of an air conditioner according to an embodiment of the present invention;
figure 7 is a perspective view of a centrifugal wind wheel according to an embodiment of the invention;
fig. 8 is a front view of a centrifugal wind wheel according to an embodiment of the present invention.
Reference numerals:
the air-conditioner (100) is provided with,
the air duct assembly 10 is provided with,
a first casing 1a, a containing cavity 11a, an air outlet 111, an air duct inlet 112, a protrusion 113, an air outlet channel 1131,
fan assembly 2a, centrifugal rotor 211, rotor inlet 2111, motor 212, blisk 222, blades 223, retaining ring 224,
the second casing 20, the air intake passage 201, the support case 202, the bottom plate 203,
a heat exchanger 4 a.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the positional or orientational relationships indicated in the drawings for the purposes of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
An air duct assembly 10 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1 to 4, an air duct assembly 10 according to an embodiment of the present invention includes a first housing 1a and a fan assembly 2 a.
Specifically, the first housing 1a has a receiving cavity 11a therein, and optionally, as shown in fig. 4, the receiving cavity 11a has a circular cross section. Of course, the present invention is not limited thereto, and the cross section of the accommodation chamber 11a may also be elliptical or polygonal, etc. As shown in fig. 1 and 3, the peripheral wall of the first casing 1a is provided with a plurality of air outlets 111 communicating with the accommodating chamber 11a, and one axial end face of the first casing 1a is provided with an air duct inlet 112. The cross-sectional area of the duct inlet 112 may be smaller than the cross-sectional area of the accommodating chamber 11a, and the cross-sectional area of the duct inlet 112 may also be equal to the cross-sectional area of the accommodating chamber 11a, that is, one axial end surface of the accommodating chamber 11a is completely open to form the duct inlet 112. The air flow can enter the accommodating chamber 11a from the duct inlet 112 and then be discharged from the air outlet 111.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 3, the fan assembly 2a includes a motor 212 and a centrifugal wind wheel 211, the centrifugal wind wheel 211 is disposed in the accommodating cavity 11a, and an output shaft of the motor 212 is connected to the centrifugal wind wheel 211 to drive the centrifugal wind wheel 211 to rotate. Further, the axis of the wind tunnel inlet 112 and the axis of the centrifugal wind wheel 211 inlet may be parallel or coincident, and correspondingly, the axis of the centrifugal wind wheel 211 and the axis of the wind tunnel inlet 112 are parallel or coincident. Of course, the axis of the centrifugal wind wheel 211 may also have a smaller included angle with the axis of the air duct inlet 122, as long as it is ensured that the airflow at the air duct inlet 112 can enter the centrifugal wind wheel 211.
During the operation of the air duct assembly 10, the air flow enters from the air duct inlet 112, and is pressurized by the centrifugal wind wheel 211 and then radially thrown out from the centrifugal wind wheel 211 under the action of the centrifugal wind wheel 211, a part of the thrown high-pressure air flow can be directly ejected from the air outlet 111, which can reduce the noise during the air flow process, and the other part of the thrown high-pressure air flow is ejected from the air outlet 111 after being guided by the accommodating cavity 11 a.
According to the air duct assembly 10 provided by the embodiment of the invention, the air duct inlet 112 is arranged on one axial end surface of the accommodating cavity 11a of the first shell 1a, the peripheral wall of the accommodating cavity 11a is provided with the plurality of air outlets 111, and the centrifugal wind wheel 211 is arranged in the accommodating cavity 11a, so that air flow entering from the air duct inlet 112 can be radially thrown out of the centrifugal wind wheel 211 under the action of the centrifugal wind wheel 211 and then discharged from the air outlets 111 on the peripheral wall of the accommodating cavity 11a, axial air inlet and radial air outlet of the air duct assembly 10 can be realized, and the structure of the air duct assembly 10 is simpler and more compact. In addition, a plurality of spaced air outlets 111 are arranged, so that the air speed of each air outlet 111 can be increased, the air supply distance is increased, and the requirements of users are met. In addition, the plurality of air outlets 111 can disperse wind to realize a soft wind feeling.
In some embodiments of the present invention, as shown in fig. 1 and 2, the plurality of air outlets 111 are spaced apart in the circumferential direction of the first housing 1 a. Therefore, the air outlet range of the air duct assembly 10 in the circumferential direction of the first shell 1a is larger, and the requirements of users are met. In addition, when the duct assembly 10 is applied to the air conditioner 100, the cooling or heating effect of the air conditioner 100 may be improved.
Alternatively, as shown in fig. 5 and 6, the surface of each air outlet 111 is parallel to the axis of the first housing 1 a. Therefore, the structure of the first housing 1a can be simplified, and the air outlet 111 can be more uniform. The surface of the air outlet 111 is a surface defined by an outer contour of the air outlet 111. Optionally, the surface of the air outlet 111 may be a plane or an arc surface. Preferably, as shown in fig. 5 and 6, the surface of the air outlet 111 is a plane, so that the structure of the first housing 1a can be further simplified, thereby simplifying the structure of the air duct assembly 10.
As shown in fig. 1, 3 and 4, a plurality of protrusions 113 are disposed on the outer peripheral wall of the first casing 1a, the plurality of protrusions 113 correspond to the plurality of air outlets 111 one to one, the protrusions 113 define an air outlet channel 1131, one end of the air outlet channel 1131 communicates with the accommodating cavity 11a, and the other end of the air outlet channel 1131 is configured as the air outlet 111. The air outlet 111 is convenient to set, the orientation of the air outlet 111 can be more flexible, and the requirements of users can be better met.
Further, as shown in fig. 4 and 6, the plurality of air outlets 111 are located on the same plane. It can be understood that the surface of each air outlet 111 is a plane, and the planes of the air outlets 111 are coincident. Therefore, the structure of the first shell 1a is simpler, the processing technology of the first shell 1a is simplified, and the production efficiency is improved.
Further, as shown in fig. 4 and 6, the axes of the plurality of wind outlet channels 1131 are parallel. Therefore, the air outlet directions of the air outlets 111 are the same, air blown to a target area by the air duct assembly 10 can be concentrated, the air volume in the direction can be increased, and the use requirements of users can be met.
Alternatively, the cross-section of the outlet port 111 is formed in a circular, elliptical, or polygonal shape. Thereby increasing the versatility of the construction of the air duct assembly 10. For example, in the example shown in fig. 2, the cross section of the outlet 111 is formed substantially in a quadrangle, and four sides of the quadrangle are transitionally connected by a rounded curve.
In some embodiments of the present invention, an edge of the at least one air outlet 111 away from the air duct inlet 112 is flush with an axial end surface of the first housing 1a away from the air duct inlet 112. Therefore, the airflow in the accommodating cavity 11a flows towards the air outlet 111 along the wall surface of the accommodating cavity 11a far away from the air duct inlet 112, the airflow flowing resistance is reduced, and the noise in the airflow flowing process is reduced.
In some embodiments of the invention, the area enclosed by the outer contour line of each outlet opening 111 is capable of accommodating at least one area of a circle with a diameter of 8 mm. For example, the air outlet 111 may be a circular hole with a diameter greater than or equal to 8mm, or may be an elongated hole, and the width of the elongated hole is greater than or equal to 8mm to accommodate a circular area with a diameter of 8 mm. Thereby, long-distance air supply can be realized.
In some embodiments of the present invention, centrifugal wind wheel 211 has a wind wheel inlet 2111 opposite to wind channel inlet 112, a diameter of wind wheel inlet 2111 is D, and a distance between a surface of centrifugal wind wheel 211 away from wind channel inlet 112 and a wall surface of receiving cavity 11a away from wind channel inlet 112 is H, H satisfies: h is more than or equal to 0.02D. Therefore, the airflow radially thrown out from the centrifugal wind wheel 211 can smoothly flow to the air outlet 111 along the gap between the wall surface of the accommodating cavity 11a far away from the air duct inlet 112 and the surface of the centrifugal wind wheel 211 far away from the air duct inlet 112, so that the smoothness of the airflow flowing is ensured, and the noise in the airflow flowing process is reduced.
It should be noted that, as shown in fig. 7 and 8, the centrifugal wind wheel 211 generally includes a disk 222, a plurality of blades 223, and a fixing ring 224, the disk 222 is formed in a circular plate-like structure, the plurality of blades 223 are spaced apart in a circumferential direction of the disk 222, one end of each blade 223 is connected to the disk 222, the fixing ring 224 is spaced apart from the disk 222, the other end of each blade 223 is connected to the fixing ring 224, and an inner circumferential wall of the fixing ring 224 defines a space which is a wind wheel inlet 2111.
Further, as shown in fig. 3, the air outlet 111 is disposed at one end of the first casing 1a, and a distance between a surface of the centrifugal wind wheel 211 away from the air duct inlet 112 and a wall surface of the accommodating chamber 11a away from the air duct inlet 112 is gradually increased in a direction from one end of the accommodating chamber 11a away from the air outlet 111 to one end close to the air outlet 111. Because a part of the airflow radially thrown out from the position, opposite to the air outlet 111, of the centrifugal wind wheel 211 directly flows to the air outlet 111, the airflow radially thrown out from the position, far away from the air outlet 111, of the centrifugal wind wheel 211 also flows to the air outlet 111 through the flow guide effect of the centrifugal wind wheel 211 and the wall surface of the accommodating cavity 11a, and in the direction from one end, far away from the air outlet 111, of the accommodating cavity 11a to one end, close to the air outlet 111, the distance between the surface, far away from the air duct inlet 112, of the centrifugal wind wheel 211 and the wall surface, far away from the air duct inlet 112, of the accommodating cavity 11a is gradually increased, more space for the airflow to flow out can be formed at the position, close to the air outlet 111, the airflow is prevented from colliding.
Further, as shown in fig. 3, a distance between one end of the surface of the centrifugal wind wheel 211 away from the air outlet 111 and the wall surface of the accommodating chamber 11a away from the air duct inlet 112 is H1, a distance between one end of the surface of the centrifugal wind wheel 211 away from the air outlet 111 and the wall surface of the accommodating chamber 11a away from the air duct inlet 112 is H2, and the following requirements are satisfied: h1 is not less than H2 is not less than 5H 1. Therefore, more space can be further flowed out for the airflow at the position close to the air outlet 111, the airflow is prevented from colliding at the position to generate a vortex, the airflow can flow conveniently, and meanwhile, the noise generated by the airflow can be reduced.
In some embodiments of the present invention, centrifugal wind wheel 211 has a wind wheel inlet 2111 opposite to wind channel inlet 112, wind wheel inlet 2111 has a diameter D, and a total area of projections of plurality of wind outlets 111 in a plane parallel to and perpendicular to an axis of centrifugal wind wheel 211 is S, and satisfies: s < pi D2/4. Therefore, the air outlet area of the air duct assembly 10 is smaller than the air inlet area, the air outlet speed of the air outlet 111 of the air duct assembly 10 can be increased, and the air supply distance is increased.
Specifically, according to the condition that Q (air volume) is equal to S (area) V (air speed), the smaller the air outlet area is, the larger the air outlet speed is, and therefore, the air can be sent farther with the same air volume, and when the air duct assembly 10 is applied to the air conditioner 100, a better cooling or heating effect can be achieved. Meanwhile, according to bernoulli's equation, for an incompressible fluid, there are: ρ gh +0.5 ρ v2+ p ═ C, i.e.: the energy + kinetic energy + pressure potential energy in gravity is constant. For gases, gravitational potential energy is negligible, so the higher the kinetic energy, the lower the pressure. Therefore, for high-speed jet flow, obvious low pressure is formed in the jet flow area, and the low pressure can form an adsorption traction effect on surrounding air, so that the total airflow flow is increased, and the effect of long-distance air supply can be further achieved.
It should be noted that the total area S is the sum of the air outlet areas of the air outlets 111, and the air outlet area of each air outlet 111 is the projection area of the air outlet 111 on a plane parallel to the axis of the centrifugal wind wheel 211 and perpendicular to the axis of the air outlet 111. Wherein the axis of the outlet port 111 is a straight line in the radial direction of the first housing 1a passing through the center of the outlet port 111.
In some embodiments of the present invention, a wall surface of the accommodating cavity 11a away from the air duct inlet 112 is provided with an accommodating groove, the motor 212 is disposed in the accommodating groove, and an output shaft of the motor 212 is connected to the centrifugal wind wheel 211. The structure of the air duct assembly 10 can be made more compact and reasonable. Of course, the present invention is not limited thereto, and as shown in fig. 3, the motor 212 is disposed outside the first casing 1a and connected to the first casing 1a, and an output shaft of the motor 212 passes through the wind duct inlet 112 and is connected to the centrifugal wind wheel 211. The construction of the air duct assembly 10 may thereby be simplified to facilitate assembly of the air duct assembly 10. The motor 212 may be directly connected to the first housing 1a or indirectly connected thereto.
An air conditioner 100 according to an embodiment of the present invention is described below.
As shown in fig. 1, 5 and 6, an air conditioner 100 according to an embodiment of the present invention includes a second casing 20, a heat exchanger 4a and the above-described duct assembly 10.
Specifically, as shown in fig. 3, an air inlet channel 201 is defined in the second casing 20, an air inlet communicated with the air inlet channel 201 is formed on the second casing 20, the heat exchanger 4a is arranged in the air inlet channel 201 and is opposite to the air inlet, the first casing 1a is connected with the second casing 20, and the air duct inlet 112 is communicated with the air inlet channel 201. Air enters the air inlet channel 201 from the air inlet, exchanges heat with the heat exchanger 4a in the air inlet channel 201, enters the air channel inlet 112 after heat exchange, enters the wind wheel inlet 2111 under the action of the centrifugal wind wheel 211, flows out of the accommodating cavity 11a after the centrifugal wind wheel 211 is pressurized, a part of air flow is directly discharged from the air outlet 111, and a part of air flow is discharged from the air outlet 111 after the air flow changes direction through the accommodating cavity 11 a.
Therefore, the airflow in the accommodating cavity 11a can be sent out along the radial direction of the centrifugal wind wheel 211, and the axial air inlet and the radial air outlet of the air duct assembly 10 are realized. In addition, a plurality of spaced air outlets 111 are arranged, so that the air speed of each air outlet 111 can be increased, the air supply distance is increased, and the requirements of users are met.
According to the air conditioner 100 of the embodiment of the invention, the air duct inlet 112 is arranged on one axial end surface of the accommodating cavity 11a of the first shell 1a, the plurality of air outlets 111 are arranged on the peripheral wall of the accommodating cavity 11a, and the centrifugal wind wheel 211 is arranged in the accommodating cavity 11a, so that air flow entering from the air duct inlet 112 can be radially thrown out of the centrifugal wind wheel 211 under the action of the centrifugal wind wheel 211 and then discharged from the air outlets 111 on the peripheral wall of the accommodating cavity 11a, axial air inlet and radial air outlet of the air duct assembly 10 can be realized, and the structure of the air duct assembly 10 is simpler and more compact. In addition, a plurality of spaced air outlets 111 are arranged, so that the air speed of each air outlet 111 can be increased, the air supply distance is increased, and the requirements of users are met. In addition, the plurality of air outlets 111 can disperse wind to realize a soft wind feeling.
In some embodiments of the present invention, the first housing 1a is located above the second housing 20, the air duct inlet 112 faces downward, the air inlet is provided on the peripheral wall of the second housing 20, and the heat exchanger 4a is provided in the second housing 20 and opposite to the air inlet. During the operation of the air conditioner 100, air enters the air inlet channel 201 in the second housing 20 from the air inlet, then flows upward to the air duct inlet 112, and finally is discharged from the air outlet 111 along the radial direction of the centrifugal wind wheel 211 under the action of the centrifugal wind wheel 211.
Further, as shown in fig. 1, the second housing 20 includes a supporting shell 202 and a bottom chassis 203, the supporting shell 202 is disposed on the bottom chassis 203, the supporting shell 202 and the bottom chassis 203 together define an air intake channel 201, an air intake communicated with the air intake channel 201 is formed on a side wall of the supporting shell 202, the heat exchanger 4a is disposed at the air intake, the first housing 1a is located above the supporting shell 202 and connected to the supporting shell 202, and the air duct inlet 112 faces downward. During the operation of the air conditioner 100, air enters the air inlet channel 201 in the second housing 20 from the air inlet, flows upward to the air duct inlet 112 under the guiding action of the air inlet channel 201, and is finally discharged from the air outlet 111 along the radial direction of the centrifugal wind wheel 211 under the action of the centrifugal wind wheel 211. Therefore, the heat exchange efficiency of the air conditioner can be improved.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (17)

1. An air duct assembly, comprising:
the air conditioner comprises a first shell, a second shell and a fan, wherein an accommodating cavity is formed in the first shell, a plurality of air outlets communicated with the accommodating cavity are formed in the peripheral wall of the first shell, and an air duct inlet is formed in one axial end face of the first shell;
the fan subassembly, the fan subassembly includes motor and centrifugal wind wheel, centrifugal wind wheel establishes hold the intracavity, the output shaft of motor with centrifugal wind wheel connects.
2. The air duct assembly according to claim 1, wherein the plurality of air outlets are spaced apart in a circumferential direction of the first housing.
3. The air duct assembly according to claim 1, wherein a surface of each air outlet is parallel to an axis of the first housing.
4. The air duct assembly according to claim 1, wherein a plurality of protrusions are provided on the outer peripheral wall of the first casing, the plurality of protrusions correspond to the plurality of air outlets one to one, the protrusions define an air outlet channel, one end of the air outlet channel is communicated with the accommodating cavity, and the other end of the air outlet channel is configured as the air outlet.
5. The air duct assembly of claim 4, wherein the plurality of air outlets are located on the same plane.
6. The air duct assembly according to claim 4, wherein the axes of the plurality of air outlet channels are parallel.
7. The air duct assembly according to claim 1, wherein the cross-section of the air outlet is formed in a circular, elliptical or polygonal shape.
8. The air duct assembly according to claim 1, wherein an edge of the at least one air outlet distal from the air duct inlet is flush with an axial end surface of the first housing distal from the air duct inlet.
9. The air duct assembly according to claim 1, wherein the area bounded by the outer contour of each air outlet is capable of accommodating at least one area of a circle having a diameter of 8 mm.
10. The air duct assembly according to claim 1, wherein the centrifugal wind wheel has a wind wheel inlet opposite to the air duct inlet, the wind wheel inlet has a diameter D, a distance between a surface of the centrifugal wind wheel away from the air duct inlet and a wall surface of the accommodating cavity away from the air duct inlet is H, and H satisfies: h is more than or equal to 0.02D.
11. The air duct assembly according to claim 10, wherein a distance between a surface of the centrifugal wind wheel away from the air duct inlet and a wall surface of the accommodating chamber away from the air duct inlet gradually increases in a direction from an end of the accommodating chamber away from the air outlet to an end close to the air outlet.
12. The air duct assembly according to claim 11, wherein a distance between an end of the surface of the centrifugal wind wheel away from the air outlet and the wall surface of the accommodating chamber away from the air duct inlet is H1, and a distance between an end of the surface of the centrifugal wind wheel away from the air outlet and the wall surface of the accommodating chamber away from the air duct inlet is H2, and satisfies: h1 is not less than H2 is not less than 5H 1.
13. The air duct assembly according to claim 1, wherein the centrifugal wind wheel has a wind wheel inlet opposite to the air duct inlet, the wind wheel inlet has a diameter D, and the plurality of air outlets are in a plane parallel to and perpendicular to an axis of the centrifugal wind wheelThe total area of the projection of (a) is S, and satisfies: s < pi D2/4。
14. The air duct assembly according to claim 1, wherein a wall of the accommodating cavity away from the air duct inlet is provided with an accommodating groove, and the motor is disposed in the accommodating groove.
15. The air duct assembly of claim 1, wherein the motor is disposed outside the first housing and connected to the first housing, and an output shaft of the motor passes through the air duct inlet and is connected to the centrifugal wind wheel.
16. An air conditioner, comprising:
the air inlet channel is defined in the second shell, and an air inlet communicated with the air inlet channel is formed in the second shell;
the heat exchanger is arranged in the air inlet channel and is opposite to the air inlet;
the air duct assembly according to any one of claims 1-15, the first housing being connected to the second housing, the air duct inlet being in communication with the air intake channel.
17. The air conditioner according to claim 16, wherein the second housing includes:
a chassis;
the supporting shell is arranged on the chassis, the supporting shell and the chassis define the air inlet channel together, an air inlet communicated with the air inlet channel is formed in the side wall of the supporting shell, the heat exchanger is arranged at the position of the air inlet, and the first shell is located above the supporting shell and connected with the supporting shell.
CN201910860959.5A 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same Pending CN112484278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910860959.5A CN112484278A (en) 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910860959.5A CN112484278A (en) 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same

Publications (1)

Publication Number Publication Date
CN112484278A true CN112484278A (en) 2021-03-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910860959.5A Pending CN112484278A (en) 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same

Country Status (1)

Country Link
CN (1) CN112484278A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113201901A (en) * 2021-05-10 2021-08-03 无锡小天鹅电器有限公司 Wall-mounted washing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113201901A (en) * 2021-05-10 2021-08-03 无锡小天鹅电器有限公司 Wall-mounted washing machine
CN113201901B (en) * 2021-05-10 2022-03-22 无锡小天鹅电器有限公司 Wall-mounted washing machine

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