CN112484277A - 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
CN112484277A
CN112484277A CN201910860954.2A CN201910860954A CN112484277A CN 112484277 A CN112484277 A CN 112484277A CN 201910860954 A CN201910860954 A CN 201910860954A CN 112484277 A CN112484277 A CN 112484277A
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CN
China
Prior art keywords
air
air duct
cavity
shell
wind wheel
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
CN201910860954.2A
Other languages
Chinese (zh)
Inventor
宋英杰
凌敬
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 CN201910860954.2A priority Critical patent/CN112484277A/en
Publication of CN112484277A publication Critical patent/CN112484277A/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
    • F24F13/065—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as cylindrical or spherical bodies which are rotatable
    • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses an air duct assembly and an air conditioner with the same, wherein the air duct assembly comprises: the air duct type air conditioner comprises a shell, wherein a containing cavity and a rectifying cavity are defined in the shell, one side of the rectifying cavity, which faces the containing cavity, is opened so as to be communicated with the containing cavity, an air duct inlet is formed in one end, which is far away from the rectifying cavity, of the containing cavity, and a plurality of spaced air outlet holes are formed in the side wall of the rectifying cavity; the fan subassembly, fan subassembly include motor and centrifugal wind wheel, and centrifugal wind wheel establishes and holds the intracavity and hold chamber and rectification chamber and arrange in proper order on centrifugal wind wheel's axial direction, and the output shaft and the centrifugal wind wheel of motor are connected. According to the air duct assembly, the air outlet holes are arranged on the side wall of the rectification cavity at intervals, so that the air speed of each air outlet hole can be increased, the air supply distance is increased, and the requirements of users are met. In addition, a plurality of exhaust vents can break up wind, and the gentle feeling of wind is realized.

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 realizes axial air inlet and axial air outlet in the axial direction of a wind wheel and has a long 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 shell, wherein an accommodating cavity and a rectifying cavity are defined in the shell, one side of the rectifying cavity, facing the accommodating cavity, is opened so as to be communicated with the accommodating cavity, an air duct inlet is formed in one end, far away from the rectifying cavity, of the accommodating cavity, and a plurality of spaced air outlet holes are formed in the side wall of the rectifying cavity; the fan subassembly, the fan subassembly includes motor and centrifugal wind wheel, centrifugal wind wheel establishes hold the intracavity, hold the chamber with the rectification chamber is in arrange in proper order on centrifugal wind wheel's the axial direction, the output shaft of motor with centrifugal wind wheel connects.
According to the air duct assembly provided by the embodiment of the invention, the accommodating cavity and the rectifying cavity are defined in the shell, the centrifugal wind wheel is arranged in the accommodating cavity, the accommodating cavity and the rectifying cavity are sequentially arranged in the axial direction of the centrifugal wind wheel, the end, far away from the rectifying cavity, of the accommodating cavity is provided with the air duct inlet, and the side wall of the rectifying cavity is provided with the plurality of spaced air outlet holes, so that the air speed of each air outlet hole can be increased, the air supply distance is increased, and the requirements of users are met. In addition, a plurality of exhaust vents can break up wind, and the gentle feeling of wind is realized.
According to some embodiments of the invention, the housing comprises a first side wall and a second side wall for enclosing the rectification cavity, one end of the first side wall and one end of the second side wall are spaced apart to communicate with the accommodating cavity, the other end of the first side wall is connected with the other end of the second side wall, the first side wall is inclined towards the second side wall in the direction from the accommodating cavity to the rectification cavity, the air outlet hole is formed in the first side wall, and the air outlet holes are spaced apart along the length direction of the first side wall.
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 sum of projected areas of the plurality of air outlet holes in a plane perpendicular to the axis of the centrifugal wind wheel is S, and the following conditions are satisfied: s < pi D2/4。
According to some embodiments of the invention, the area enclosed by the outer contour line of each of the outlet openings is capable of accommodating at least one area of a circle with a diameter of 8 mm.
In some embodiments of the invention, each of the air outlet holes extends in an axial direction of the centrifugal wind wheel.
In some embodiments of the present invention, the width of each of the air outlet holes gradually increases in a direction from the accommodating chamber to the rectifying chamber.
According to some embodiments of the invention, the housing comprises a first housing and a second housing connected to each other, the first housing comprises a first fairing shell in the shape of a cylinder, a second fairing shell in the shape of a cylinder, and a baffle plate, the first fairing shell is arranged around the periphery of the baffle plate and is connected to the baffle plate, the baffle plate is arranged at one end of the first fairing shell adjacent to the second housing, the second fairing shell is arranged around the periphery of the first fairing shell and is spaced apart from one end of the second fairing shell adjacent to the second housing, one end of the second fairing shell far from the second housing is connected to one end of the first fairing shell far from the second housing, and the first fairing shell, the second fairing shell and the baffle plate jointly define the fairing cavity, the second shell is cylindrical and defines the accommodating cavity together with the baffle plate.
In some embodiments of the present invention, an end of the inner wall surface of the second fairing near the second casing is flush with an end of the inner peripheral wall of the second casing near the first casing.
In some embodiments of the present invention, the inner wall surface of the first rectification case and the surface of the baffle facing the second casing are connected by a circular arc surface.
According to some embodiments of the invention, the distance between the centrifugal rotor and the baffle is 2-15 mm.
According to some embodiments of the invention, an outer peripheral edge of the centrifugal wind wheel is flush with an end of the inner wall surface of the first fairing shell close to the second shell.
According to some embodiments of the invention, the width of the rectification chamber is gradually reduced in a direction from the accommodating chamber to the rectification chamber.
According to some embodiments of the invention, a receiving groove is formed on a side wall of the receiving cavity close to the rectifying cavity, and the motor is arranged in the receiving groove.
According to some embodiments of the invention, the motor is disposed outside the housing and connected to the 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 conditioner comprises a shell, an air inlet channel is defined in the shell, and an air inlet communicated with the air inlet channel is formed in the shell; the heat exchanger is arranged in the air inlet channel and is opposite to the air inlet; in the air duct assembly, the casing is connected with the casing, 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 accommodating cavity and the rectifying cavity are defined in the shell, the centrifugal wind wheel is arranged in the accommodating cavity, the accommodating cavity and the rectifying cavity are sequentially arranged in the axial direction of the centrifugal wind wheel, the end, far away from the rectifying cavity, of the accommodating cavity is provided with the air duct inlet, and the side wall of the rectifying cavity is provided with the plurality of spaced air outlet holes, so that the air speed of each air outlet hole can be increased, the air supply distance is increased, and the requirements of users are met. In addition, a plurality of exhaust vents can break up wind, and the gentle feeling of wind is realized.
According to some embodiments of the invention, the air inlet is opposite the air duct inlet.
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 C-C of FIG. 2;
FIG. 4 is a cross-sectional view taken along line D-D 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,
the shell 1, the second shell 11, the first shell 12, the first rectifying shell 121, the second rectifying shell 122, the baffle 123, the accommodating cavity 13, the air duct inlet 131, the rectifying cavity 14, the first side wall 14a, the second side wall 14b, the air outlet 141,
the fan component 2, the motor 21, the centrifugal wind wheel 22, the wind wheel inlet 221, the blade disc 222, the blades 223, the fixing ring 224,
a housing 20, an air intake passage 201, a support housing 202, a bottom plate 203,
a heat exchanger 30.
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," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the positional or orientational relationships shown in the drawings to facilitate the description of the invention and to simplify the description, and do not 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 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. 1-4, an air duct assembly 10 according to an embodiment of the present invention includes a housing 1 and a fan assembly 2.
Specifically, as shown in fig. 1 and 3, a housing chamber 13 and a rectification chamber 14 are defined in the housing 1. Alternatively, as shown in fig. 1-4, the receiving cavity 13 is circular in cross-section. Of course, the present invention is not limited thereto, and the cross section of the accommodating chamber 13 may also be an ellipse or a polygon such as a quadrangle. As shown in fig. 3 and 4, a side of the rectifying chamber 14 facing the accommodating chamber 13 is opened to communicate with the accommodating chamber 13. It can be understood that one side of the rectification cavity 14 facing the containing cavity 13 is completely open, no shielding exists between the rectification cavity 14 and the containing cavity 13, and the airflow in the containing cavity 13 can enter the rectification cavity 14 at any position along the circumferential direction of the rectification cavity 14.
As shown in fig. 3 and 4, an end of the accommodating chamber 13 away from the rectifying chamber 14 is provided with a duct inlet 131, wherein a cross-sectional area of the duct inlet 131 may be smaller than a cross-sectional area of the accommodating chamber 13, and the cross-sectional area of the duct inlet 131 may also be equal to the cross-sectional area of the accommodating chamber 13, that is, a side of the accommodating chamber 13 away from the rectifying chamber 14 is completely open to form the duct inlet 131. The fan assembly 2 comprises a motor 21 and a centrifugal wind wheel 22, the centrifugal wind wheel 22 is arranged in the accommodating cavity 13, and an output shaft of the motor 21 is connected with the centrifugal wind wheel 22 to drive the centrifugal wind wheel 22 to rotate. The outer periphery of the centrifugal wind wheel 22 is spaced from the peripheral wall of the accommodating cavity 13, and the airflow can enter the accommodating cavity 13 from the wind channel inlet 131, and flows out from the radial direction of the centrifugal wind wheel 22 to a position between the outer periphery of the centrifugal wind wheel 22 and the peripheral wall of the accommodating cavity 13 through the action of the centrifugal wind wheel 22, and then flows into the rectifying cavity 14.
As shown in fig. 3 and 4, the accommodating cavity 13 and the rectifying cavity 14 are sequentially arranged in the axial direction of the centrifugal wind wheel 22, and a plurality of spaced air outlet holes 141 are formed in the side wall of the rectifying cavity 14. During the operation of the air duct assembly 10, the air flow enters from the air duct inlet 131, is pressurized by the centrifugal wind wheel 22 and then is radially thrown out from the centrifugal wind wheel 22 under the action of the centrifugal wind wheel 22, and the thrown high-pressure air flow is changed to the rear direction through the accommodating cavity 13 and the rectifying cavity 14 and is ejected out from the air outlet 141.
Wherein, a plurality of exhaust vents 141 can realize the aperture air-out, improve the air supply distance of wind channel subassembly 10, and in addition, a plurality of exhaust vents 141 can break up wind, realize gentle wind sense.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
According to the air duct assembly 10 provided by the embodiment of the invention, the accommodating cavity 13 and the rectifying cavity 14 are defined in the shell 1, the centrifugal wind wheel 22 is arranged in the accommodating cavity 13, the accommodating cavity 13 and the rectifying cavity 14 are sequentially arranged in the axial direction of the centrifugal wind wheel 22, the air duct inlet 131 is arranged at one end of the accommodating cavity 13, which is far away from the rectifying cavity 14, and the air outlet holes 141 are arranged on the side wall of the rectifying cavity 14 at intervals, so that the air speed of each air outlet hole 141 can be increased, the air supply distance is increased, and the requirements of users are met. In addition, the plurality of air outlets 141 can break up the wind, thereby achieving a soft wind feeling.
In some embodiments of the present invention, as shown in fig. 3 and 4, the housing 1 includes a first sidewall 14a and a second sidewall 14b for enclosing the rectification chamber 14, one end of the first sidewall 14a and one end of the second sidewall 14b are spaced apart to communicate with the accommodation chamber 13, the other end of the first sidewall 14a and the other end of the second sidewall 14b are connected, the first sidewall 14a is inclined toward the second sidewall 14b in a direction from the accommodation chamber 13 to the rectification chamber 14, the air outlet hole 141 is provided on the first sidewall 14a, and the plurality of air outlet holes 141 are spaced apart in a length direction of the first sidewall 14 a. Therefore, the airflow in the rectifying cavity 14 can be sent out along the axial direction of the centrifugal wind wheel 22, and the axial air inlet and the axial air outlet of the air duct assembly 10 are realized. In addition, the plurality of spaced air outlet holes 141 are arranged, so that the air speed of each air outlet hole 141 can be increased, the air supply distance is increased, and the requirements of users are met.
Further, the centrifugal wind rotor 22 has a rotor inlet 221 opposite the wind tunnel inlet 131. Alternatively, the axis of the tunnel inlet 131 and the axis of the centrifugal wind rotor 22 inlet may be parallel or coincident, and correspondingly, the axis of the centrifugal wind rotor 22 and the axis of the tunnel inlet 131 are parallel or coincident. The diameter of the wind wheel inlet 221 is D, the sum of the projection areas of the air outlet holes 141 in the plane perpendicular to the axis of the centrifugal wind wheel 22 is S, and the following requirements are met: 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 at the air outlet 141 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, as shown in fig. 7 and 8, the centrifugal wind wheel 22 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 a space defined by an inner circumferential wall of the fixing ring 224 is a wind wheel inlet 221.
In some embodiments of the present invention, the area enclosed by the outer contour line of each air outlet 141 can accommodate at least one area of a circle with a diameter of 8 mm. For example, the air outlet 141 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 has a position 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.
Further, as shown in fig. 1, 3 and 4, each of the air outlet holes 141 extends in the axial direction of the centrifugal wind wheel 22. Therefore, the air flow can be conveniently sent out from the air outlet 141 along the axial direction of the centrifugal wind wheel 22, the use of a user is convenient, and the air supply requirement of the user is met. Further, as shown in fig. 1, 3 and 4, the width of each of the air outlet holes 141 is gradually increased in a direction from the accommodating chamber 13 to the rectifying chamber 14. Therefore, the air flow is further conveniently sent out from the air outlet 141 along the axial direction of the centrifugal wind wheel 22, the use of a user is convenient, and the air supply requirement of the user is met. In addition, because the air current flows towards the direction of keeping away from holding chamber 13 along the periphery wall orientation of rectification chamber 14, strike rectification chamber 14 and flow towards exhaust vent 141 behind the one end of holding chamber 13 of keeping away from, and the width of exhaust vent 141 keeping away from the one end of holding chamber 13 is great, and the air current of being convenient for flows out, improves the phenomenon that forms the vortex in exhaust vent 141 department, is favorable to reducing the air-out noise. For example, in the example shown in fig. 1 and 4, the air outlet hole 141 is formed substantially in a drop shape.
In some embodiments of the present invention, as shown in fig. 1, the housing 1 comprises a first housing 12 and a second housing 11 connected. Specifically, as shown in fig. 3 and 4, the first casing 12 includes a first rectifying casing 121 having a cylindrical shape, a second rectifying casing 122 having a cylindrical shape, and a baffle 123, the first rectifying casing 121 is disposed around the periphery of the baffle 123 and the first rectifying casing 121 is connected to the baffle 123, the baffle 123 is located at an end of the first rectifying casing 121 adjacent to the second casing 11, the second rectifying casing 122 is disposed around the periphery of the first rectifying casing 121 and an end of the second rectifying casing 122 adjacent to the second casing 11 is spaced apart from an end of the first rectifying casing 121 adjacent to the second casing 11, an end of the second rectifying casing 122 remote from the second casing 11 is connected to an end of the first rectifying casing 121 remote from the second casing 11, the first rectifying casing 121 and the second rectifying casing 122 together define a rectifying chamber 14, the second casing 11 has a cylindrical shape, an end of the second casing 11 close to the first casing 12 is connected to an end of the second rectifying casing 122 close to the second casing 11, the second housing 11 and the baffle 123 together define the accommodating chamber 13.
The air outlet 141 may be disposed on the first rectifying case 121 or the second rectifying case 122. For example, in the example shown in fig. 3 and 4, the outlet hole 141 is provided on the first rectification case 121.
Alternatively, as shown in fig. 1, 3 and 4, the first shell 12 and the second shell 11 are arranged along the axial direction of the centrifugal wind wheel 22, the second shell 11 and the first shell 12 are connected by a fastener or snap-fit connection to jointly define the accommodating cavity 13 and the rectifying cavity 14, and one end of the second shell 11 away from the first shell 12 is provided with a wind channel inlet 131, thereby facilitating the installation of the fan assembly 2.
As shown in fig. 3 and 4, the rectification chamber 14 extends in the circumferential direction of the accommodation chamber 13. Wherein the rectification chamber 14 may extend in a ring shape in the circumferential direction of the accommodation chamber 13. Of course, the rectification chamber 14 may also extend a distance in the circumferential direction of the receiving chamber 13, i.e. the rectification chamber 14 is provided only on a part of the circumferential direction of the receiving chamber 13, for example, the rectification chamber 14 may be semi-annular. For example, in the example shown in fig. 1, the rectification chamber 14 extends in a ring shape in the circumferential direction of the accommodation chamber 13.
The cross-section of the rectification chamber 14 is circular. Of course, the present invention is not limited thereto, and the cross section of the accommodating chamber 13 may also be an ellipse or a polygon such as a quadrangle, and correspondingly, the cross section of the rectifying chamber 14 may be an ellipse ring or a polygon ring. Of course, the cross section of the accommodating cavity 13 and the cross section of the rectifying cavity 14 may not correspond to each other, for example, the cross section of the accommodating cavity 13 may be circular, and the cross section of the rectifying cavity 14 may be square. And are not limiting herein.
In some embodiments of the present invention, as shown in fig. 3 and 4, one end of the inner wall surface of the second fairing 122 near the second casing 11 is flush with one end of the inner peripheral wall of the second casing 11 near the first casing 12. Therefore, the airflow in the accommodating cavity 13 flows to the rectifying cavity 14 along the inner wall of the accommodating cavity 13 to realize the diversion of the airflow. In addition, in the flowing process of the air flow, the problem that the air flow hits the wall surface of the accommodating cavity 13 can be improved, and the noise in the flowing process of the air flow can be reduced.
Further, as shown in fig. 3 and 4, the inner wall surface of the first rectification case 121 and the surface of the baffle 123 facing the second casing 11 are connected by an arc surface. The arc surface can guide the airflow, so that the airflow can be better guided into the rectifying cavity 14 and discharged from the air outlet 141.
Furthermore, as shown in fig. 3 and 4, the peripheral wall of the accommodating chamber 13 is also connected to the end surface of the accommodating chamber 13 far from the rectifying chamber 14 through an arc surface, so that the airflow can be further guided, the airflow can be better guided into the rectifying chamber 14, and noise in the airflow flowing process can be reduced.
Alternatively, as shown in fig. 3 and 4, the distance between the centrifugal rotor 22 and the baffle 123 is 2-15 mm. For example 4mm, 6mm, 8mm, 10mm or 12mm etc. Therefore, the centrifugal wind wheel 22 and the baffle 123 can be prevented from colliding, and the air flow can be prevented from flowing into a gap between the centrifugal wind wheel 22 and the baffle 123 to cause energy loss.
Further, as shown in fig. 3 and 4, the outer peripheral edge of the centrifugal wind rotor 22 is flush with one end of the inner wall surface of the first rectification case 121 close to the second casing 11. It will be appreciated that the outer periphery of the baffle 123 is flush with the outer periphery of the centrifugal rotor 22. Therefore, the baffle 123 can be prevented from blocking the airflow, and the airflow flowing out of the centrifugal wind wheel 22 can flow into the rectification cavity 14 conveniently.
In some embodiments of the invention, as shown in fig. 3 and 4, the width of the rectification chamber 14 is gradually reduced in the direction from the accommodating chamber 13 to the rectification chamber 14. It can be understood that, in the direction from the accommodating cavity 13 to the rectifying cavity 14, the cross-sectional area of the rectifying cavity 14 gradually decreases, and the space of the rectifying cavity 14 gradually decreases, so that the pressure of the air flow can be increased, the air outlet speed of the air flow can be increased, and the air supply distance can be further increased.
It should be noted that the width of the rectification chamber 14 refers to the distance between the first side wall 14a and the second side wall 14 b.
Alternatively, the inner circumferential wall of the rectification chamber 14 is inclined toward the outer circumferential wall of the rectification chamber 14 in the direction from the accommodation chamber 13 to the rectification chamber 14, and/or the outer circumferential wall of the rectification chamber 14 is inclined toward the outer circumferential wall of the rectification chamber 14 in the direction from the accommodation chamber 13 to the rectification chamber 14.
In the example shown in fig. 3 and 4, the inner peripheral wall of the rectification chamber 14 is inclined toward the outer peripheral wall of the rectification chamber 14 in the direction from the accommodating chamber 13 to the rectification chamber 14, and the inner peripheral wall of the rectification chamber 14 is provided with a plurality of air outlet holes 141 spaced apart in the circumferential direction of the rectification chamber 14. In the direction from the accommodating chamber 13 to the rectification chamber 14, the outer peripheral wall of the rectification chamber 14 is inclined toward the inner peripheral wall of the rectification chamber 14. Therefore, the airflow in the rectifying cavity 14 can be sent out along the axial direction of the centrifugal wind wheel 22, and the axial air inlet and the axial air outlet of the air duct assembly 10 are realized. In addition, the plurality of spaced air outlet holes 141 are arranged, so that the air speed of each air outlet hole 141 can be increased, the air supply distance is increased, and the requirements of users are met.
Of course, in the direction from the accommodating cavity 13 to the rectifying cavity 14, the outer peripheral wall of the rectifying cavity 14 may be parallel to the axis of the centrifugal wind wheel 22, and may also be inclined toward a direction away from the inner peripheral wall of the rectifying cavity 14.
In some embodiments of the present invention, a receiving groove is provided on a side wall of the receiving cavity 13 near the rectifying cavity 14, and the motor 21 is disposed in the receiving groove. 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 and 4, the motor 21 is disposed outside the housing 1 and connected to the housing 1, and the output shaft of the motor 21 passes through the wind channel inlet 131 and is connected to the centrifugal wind wheel 22. The construction of the air duct assembly 10 may thereby be simplified to facilitate assembly of the air duct assembly 10. The motor 21 may be directly connected to the housing 1 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 cabinet 20, a heat exchanger 30 and the above-described duct assembly 10.
Specifically, an air inlet channel 201 is defined in the casing 20, an air inlet communicated with the air inlet channel 201 is formed in the casing 20, the heat exchanger 30 is arranged in the air inlet channel 201 and opposite to the air inlet, the casing 1 is connected with the casing 20, and the air duct inlet 131 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 30 in the air inlet channel 201, enters the air channel inlet 131 after heat exchange, enters the wind wheel inlet 221 under the action of the centrifugal wind wheel 22, flows out of the accommodating cavity 13 and the rectifying cavity 14 after the centrifugal wind wheel 22 is pressurized to change the direction, and is finally discharged from the air outlet 141.
Therefore, the airflow in the rectifying cavity 14 can be sent out along the axial direction of the centrifugal wind wheel 22, and the axial air inlet and the axial air outlet of the air duct assembly 10 are realized. In addition, the plurality of spaced air outlet holes 141 are arranged, so that the air speed of each air outlet hole 141 can be increased, the air supply distance is increased, and the requirements of users are met.
According to the air conditioner 100 provided by the embodiment of the invention, the accommodating cavity 13 and the rectifying cavity 14 are defined in the shell 1, the centrifugal wind wheel 22 is arranged in the accommodating cavity 13, the accommodating cavity 13 and the rectifying cavity 14 are sequentially arranged in the axial direction of the centrifugal wind wheel 22, the air duct inlet 131 is arranged at one end of the accommodating cavity 13, which is far away from the rectifying cavity 14, and the air outlet holes 141 are arranged on the side wall of the rectifying cavity 14 at intervals, so that the air speed of each air outlet hole 141 can be increased, the air supply distance is increased, and the requirements of users are met. In addition, the plurality of air outlets 141 can break up the wind, thereby achieving a soft wind feeling.
In some embodiments of the present invention, as shown in fig. 1, 5 and 6, the housing 20 includes a rear shell, a support shell 202 and a bottom chassis 203, the rear shell and the support shell 202 are both disposed on the bottom chassis 203, the rear shell and the support shell 202 are connected to define an air intake channel 201, an air intake is disposed on the rear shell, the support shell 202 is connected with the housing 1, and the motor 21 may be disposed on the support shell 202.
Further, as shown in fig. 3 and 4, the air inlet is opposite to the air duct inlet 131. Therefore, air entering the air inlet channel 201 from the air inlet can directly enter the air duct inlet 131, the steering resistance in the air flow flowing process is reduced, and the noise in the air flow flowing process is reduced.
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 (16)

1. An air duct assembly, comprising:
the air conditioner comprises a shell, wherein an accommodating cavity and a rectifying cavity are defined in the shell, one side of the rectifying cavity, facing the accommodating cavity, is opened so as to be communicated with the accommodating cavity, an air duct inlet is formed in one end, far away from the rectifying cavity, of the accommodating cavity, and a plurality of spaced air outlet holes are formed in the side wall of the rectifying cavity;
the fan subassembly, the fan subassembly includes motor and centrifugal wind wheel, centrifugal wind wheel establishes hold the intracavity, hold the chamber with the rectification chamber is in arrange in proper order on centrifugal wind wheel's the axial direction, the output shaft of motor with centrifugal wind wheel connects.
2. The air duct assembly according to claim 1, wherein the housing includes a first side wall and a second side wall for enclosing the rectifying cavity, one end of the first side wall and one end of the second side wall are spaced apart to communicate with the accommodating cavity, the other end of the first side wall and the other end of the second side wall are connected, the first side wall is inclined toward the second side wall in a direction from the accommodating cavity to the rectifying cavity, the air outlet is provided on the first side wall, and the air outlet is spaced apart along a length direction of the first side wall.
3. The air duct assembly according to claim 2, wherein the centrifugal wind wheel has a wind wheel inlet opposite to the air duct inlet, the wind wheel inlet has a diameter D, the sum of projected areas of the plurality of air outlet holes in a plane perpendicular to the axis of the centrifugal wind wheel is S, and the following requirements are satisfied: s < pi D2/4。
4. The air duct assembly according to claim 2, wherein the area bounded by the outer contour of each of the outlet openings is capable of accommodating at least one area of a circle having a diameter of 8 mm.
5. The air duct assembly according to claim 4, wherein each of the air outlet holes extends in an axial direction of the centrifugal wind wheel.
6. The air duct assembly according to claim 5, wherein the width of each air outlet is gradually increased in a direction from the accommodating cavity to the rectifying cavity.
7. The air duct assembly according to claim 1, wherein the housing includes a first housing and a second housing that are connected, the first housing includes a first fairing shell in the shape of a cylinder, a second fairing shell in the shape of a cylinder, and a baffle, the first fairing shell is disposed around a periphery of the baffle and is connected to the baffle, the baffle is located at an end of the first fairing shell adjacent to the second housing, the second fairing shell is disposed around a periphery of the first fairing shell and is spaced apart from an end of the second fairing shell adjacent to the first housing, an end of the second fairing shell remote from the second housing is connected to an end of the first fairing shell remote from the second housing, the first fairing shell and the second fairing shell together define the fairing cavity, the second shell is cylindrical and defines the accommodating cavity together with the baffle plate.
8. The air duct assembly according to claim 7, characterized in that an end of the inner wall surface of the second rectification shell, which is close to the second housing, is flush with an end of the inner peripheral wall of the second housing, which is close to the first housing.
9. The air duct assembly according to claim 7, wherein an inner wall surface of the first rectifying shell and a surface of the baffle facing the second casing are connected by an arc surface.
10. The air duct assembly according to claim 7, wherein the centrifugal wind wheel is spaced from the baffle by a distance of 2-15 mm.
11. The air duct assembly according to claim 7, wherein an outer peripheral edge of the centrifugal wind wheel is flush with an end of the inner wall surface of the first rectification shell close to the second housing.
12. The air duct assembly of claim 1, wherein the width of the rectification chamber gradually decreases in a direction from the accommodating chamber to the rectification chamber.
13. The air duct assembly according to claim 1, wherein a receiving groove is formed on a side wall of the receiving cavity close to the rectifying cavity, and the motor is disposed in the receiving groove.
14. The air duct assembly of claim 1, wherein the motor is disposed outside the housing and connected to the housing, and an output shaft of the motor passes through the air duct inlet and is connected to the centrifugal wind wheel.
15. An air conditioner, comprising:
the air conditioner comprises a shell, an air inlet channel is defined in the shell, and an air inlet communicated with the air inlet channel is formed in the 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 1-14, the housing being connected to the enclosure, the air duct inlet being in communication with the air intake passage.
16. The air conditioner of claim 15, wherein said air inlet is opposite said air duct inlet.
CN201910860954.2A 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same Pending CN112484277A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910860954.2A CN112484277A (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
CN201910860954.2A CN112484277A (en) 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same

Publications (1)

Publication Number Publication Date
CN112484277A true CN112484277A (en) 2021-03-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910860954.2A Pending CN112484277A (en) 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same

Country Status (1)

Country Link
CN (1) CN112484277A (en)

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