CN112484275A - 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
CN112484275A
CN112484275A CN201910860427.1A CN201910860427A CN112484275A CN 112484275 A CN112484275 A CN 112484275A CN 201910860427 A CN201910860427 A CN 201910860427A CN 112484275 A CN112484275 A CN 112484275A
Authority
CN
China
Prior art keywords
air
inlet
air duct
air outlet
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
CN201910860427.1A
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Chinese (zh)
Inventor
宋英杰
刘乾坤
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 CN201910860427.1A priority Critical patent/CN112484275A/en
Priority to PCT/CN2019/109129 priority patent/WO2021046944A1/en
Publication of CN112484275A publication Critical patent/CN112484275A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—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
    • 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
    • F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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 outlet is in a slit shape, and one axial end face of the first shell is provided with an air duct inlet; the fan subassembly, fan subassembly include motor and centrifugal wind wheel, and centrifugal wind wheel establishes and is connected with centrifugal wind wheel at the output shaft that holds the intracavity motor. 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, the slit-shaped air outlet is arranged, so that the air speed of the air outlet can be increased, the air supply distance can be increased, and the requirements of users can be met.

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 can improve the 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, an air outlet communicated with the accommodating cavity is formed in the peripheral wall of the first shell, the air outlet is in a slit shape, 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 slit-shaped air outlet is arranged on the peripheral wall of the accommodating cavity, and 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 outlet 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, the slit-shaped air outlet is arranged, so that the air speed of the air outlet can be increased, the air supply distance can be increased, and the requirements of users can be met.
According to some embodiments of the invention, the surface of the outlet opening is parallel to the axis of the centrifugal wind wheel.
According to some embodiments of the present invention, a protrusion is provided on the outer peripheral wall of the first casing, the protrusion defines an outlet air channel, one end of the outlet air channel communicates with the accommodating chamber, and the other end of the outlet air channel is configured as the outlet air opening.
In some embodiments of the invention, the width of the wind outlet channel gradually decreases in a direction toward the wind outlet.
According to some embodiments of the invention, the air outlet is an annular air outlet, and an axis of the annular air outlet is perpendicular to an axis of the first housing.
According to some embodiments of the invention, the outlet is formed in a straight line or a curved line.
According to some embodiments of the invention, the outlet is a plurality of spaced apart outlets.
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 wind outlet has a width W, and: w is more than 0 and less than or equal to 0.1D.
According to some embodiments of the invention, the total length of the outlet is L, and L satisfies: l is more than or equal to 0.5D and less than or equal to 10D.
Further, the width W and the length L of the air outlet and the diameter D of the wind wheel inlet meet the following requirements: LW < 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.
In some embodiments of the present invention, a plurality of air deflectors are disposed in the air outlet, the plurality of air deflectors are spaced apart along a length direction of the air outlet, and two ends of each air deflector in a width direction are respectively connected to two ends of the air outlet in the width direction.
Further, the thickness of the air guide plate is gradually reduced along the flowing direction of the air flow.
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 slit-shaped air outlet is arranged on the peripheral wall of the accommodating cavity, and 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 outlet 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, the slit-shaped air outlet is arranged, so that the air speed of the air outlet can be increased, the air supply distance can be increased, and the requirements of users can be met.
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.
Fig. 7 is a perspective view of a partial structure of an air conditioner according to another embodiment of the present invention;
fig. 8 is a front view of a partial structure of an air conditioner according to another embodiment of the present invention;
FIG. 9 is a cross-sectional view taken along line C-C of FIG. 8;
FIG. 10 is a cross-sectional view taken along line D-D of FIG. 8;
fig. 11 is a side view of a partial structure of an air conditioner according to another embodiment of the present invention;
FIG. 12 is a plan view of a partial structure of an air conditioner according to another embodiment of the present invention
Figure 13 is a perspective view of a centrifugal wind wheel according to an embodiment of the invention;
figure 14 is a front view of a centrifugal wind rotor according to an embodiment of the 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 deflector 1111, 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 "center", "length", "width", "thickness", "upper", "lower", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in 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 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. 1-4, 7-10, 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 and 10, 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, 3, 7 and 9, the peripheral wall of the first casing 1a is provided with an air outlet 111 communicating with the accommodating chamber 11a, and the air outlet 111 is in a slit shape, so that the pressure of the air flow can be increased, the speed of the air flow can be increased, and the air supply distance can be increased. As shown in fig. 3 and 9, an air duct inlet 112 is provided on one axial end surface of the first casing 1 a. 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.
As shown in fig. 3 and 9, 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 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 housing 1a, the slit-shaped air outlet 111 is 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 the 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 outlet 111 on the peripheral wall of the accommodating cavity 11a, the air duct assembly 10 can realize axial air inlet and radial air outlet, and the structure of the air duct assembly 10 is simpler and more compact. In addition, the slit-shaped air outlet 111 is arranged, so that the air speed of the air outlet 111 can be increased, the air supply distance can be increased, and the requirements of users can be met.
In some embodiments of the invention, as shown in fig. 11 and 12, the surface of the outlet 111 is parallel to the axis of the centrifugal wind wheel 211. 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. 11 and 12, 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.
Of course, the present invention is not limited thereto, and as shown in fig. 5 and 6, the surface of the air outlet 111 and the axis of the centrifugal wind wheel 211 may have an included angle. For example, in the example shown in fig. 5, the surface on which the air outlet 111 is located is inclined in a direction away from the axis of the first casing 1a in the top-down direction. Thereby satisfying different requirements of users.
In some embodiments of the present invention, as shown in fig. 1, 3, 4, 7, 9 and 10, a protrusion 113 is provided on an outer circumferential wall of the first casing 1a, the protrusion 113 defines an air outlet channel 1131, one end of the air outlet channel 1131 is communicated with the accommodating chamber 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. 3 and 9, the width of the wind outlet channel 1131 gradually decreases in a direction toward the wind outlet 111. It can be understood that, in a direction toward the air outlet 111, the cross-sectional area of the air outlet channel 1131 gradually decreases, so that the pressure of the air flow can be increased, the air outlet speed of the air outlet 111 can be increased, and the air supply distance can be increased.
Alternatively, as shown in fig. 7 and 8, the air outlet 111 is an annular air outlet, and an axis of the annular air outlet is perpendicular to an axis of the first housing 1 a. Therefore, the air outlet space of the air outlet 111 can be increased, and the air outlet volume is improved. For example, in the example shown in fig. 7, the air outlet 111 is formed in an oblong ring shape. Of course, the present invention is not limited thereto, and the outlet 111 is formed in a linear or curved shape. Thereby, the diversity of the structure of the outlet 111 can be increased. For example, in the example shown in fig. 1, the outlet 111 is formed in a zigzag shape, the contour line of the outlet 111 includes a first section, a second section, and a third section connected in sequence, the second section extends in a horizontal direction, the first section and the third section are respectively located at both ends of the second section and are both located at an upper side of the second section, and the first section and the third section are both inclined toward each other in a direction from top to bottom.
Alternatively, the air outlet 111 may be a plurality of spaced-apart air outlets, each air outlet 111 being formed in a slit shape. Therefore, the structural diversity of the air duct assembly 10 can be increased, and different requirements of users can be met. Wherein each of the air outlets 111 may be formed in a linear type, a curved type, or a ring type.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Further, when the air outlets 111 are plural, the plural air outlets 111 may be 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, the production efficiency is improved, and the uniformity of air outlet can be improved. In addition, the first casing 1a may further have a plurality of protrusions 113, the plurality of protrusions 113 correspond to the plurality of air outlets 111 one by one, each protrusion 113 defines an air outlet channel 1131, and axes of the plurality of air outlet channels 1131 may be 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.
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. 13 and 14, 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 and 9, in a direction from one end of the accommodating chamber 11a far from the air outlet 111 to one end close to the air outlet 111, a distance between a surface of the centrifugal wind wheel 211 far from the duct inlet 112 and a wall surface of the accommodating chamber 11a far from the duct inlet 112 gradually increases. 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 and 9, 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 duct inlet 112 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, the centrifugal wind wheel 211 has a wind wheel inlet 2111 opposite to the wind channel inlet 112, the wind wheel inlet 2111 has a diameter D, the wind outlet 111 has a width W, and: w is more than 0 and less than or equal to 0.1D. Therefore, the pressure of the air flow can be increased, the speed of the air flow is increased, and the air supply distance is increased. When a plurality of air outlets 111 are provided, the width W of each air outlet 111 satisfies 0 < W ≤ 0.1D.
Further, the total length of the air outlet 111 is L, and L satisfies: l is more than or equal to 0.5D and less than or equal to 10D. From this, can increase the air-out area, improve the air-out amount of wind, satisfy user's user demand. When there are a plurality of outlets 111, L is the sum of the lengths of the plurality of outlets 111.
Further, the width W and length L of the outlet 111 and the diameter D of the wheel inlet 2111 satisfy: LW < 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.
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 and 9, the motor 212 is disposed outside the first casing 1a and connected to the first casing 1a, and the output shaft of the motor 212 passes through the wind tunnel 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.
In some embodiments of the present invention, as shown in fig. 4 and 10, a plurality of wind deflectors 1111 are disposed in the wind outlet 111, the wind deflectors 1111 are spaced apart along the length direction of the wind outlet 111, and two ends of each wind deflector 1111 in the width direction are respectively connected to two ends of the wind outlet 111 in the width direction. Therefore, the airflow can be guided, the airflow is more uniformly distributed in the air outlet 111, and the uniformity of air supply is improved.
Further, as shown in fig. 4 and 10, the thickness of the air deflection plate 1111 is gradually reduced along the flow direction of the air current. Therefore, the air guide effect of the air guide plate 1111 can be improved, the air flow discharged from the air outlet 111 can be more uniform, and the uniformity of air supply can be improved.
An air conditioner 100 according to an embodiment of the present invention is described below.
As shown in fig. 1, 3, 7 and 9, 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, an air inlet channel 201 is defined in the second casing 20, an air inlet communicated with the air inlet channel 201 is formed in 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, the slit-shaped air outlet 111 is arranged, so that the air speed of the air outlet 111 can be increased, the air supply distance can be increased, and the requirements of users can be 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 slit-shaped air outlet 111 is 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 the airflow 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 outlet 111 on the peripheral wall of the accommodating cavity 11a, the air duct assembly 10 can realize axial air inlet and radial air outlet, and the structure of the air duct assembly 10 is simpler and more compact. In addition, the slit-shaped air outlet 111 is arranged, so that the air speed of the air outlet 111 can be increased, the air supply distance can be increased, and the requirements of users can be met.
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 (19)

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, an air outlet communicated with the accommodating cavity is formed in the peripheral wall of the first shell, the air outlet is in a slit shape, 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 surface of the air outlet is parallel to the axis of the centrifugal wind wheel.
3. The air duct assembly according to claim 1, wherein a protrusion is provided on the outer peripheral wall of the first casing, the protrusion defining an air outlet channel, one end of the air outlet channel communicating with the accommodating chamber, and the other end of the air outlet channel being configured as the air outlet.
4. The air duct assembly according to claim 3, wherein the width of the air outlet channel gradually decreases in a direction toward the air outlet.
5. The air duct assembly according to claim 1, wherein the air outlet is an annular air outlet, and an axis of the annular air outlet is perpendicular to an axis of the first housing.
6. The air duct assembly of claim 1, wherein the air outlet is formed in a linear or curvilinear shape.
7. The air duct assembly of claim 1, wherein the air outlet is a plurality of spaced apart air outlets.
8. 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.
9. The air duct assembly according to claim 8, 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.
10. The air duct assembly according to claim 9, 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.
11. 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, the air outlet has a width W, and satisfies: w is more than 0 and less than or equal to 0.1D.
12. The air duct assembly of claim 11, wherein the air outlet has a total length L, wherein L satisfies: l is more than or equal to 0.5D and less than or equal to 10D.
13. The air duct assembly according to claim 12, wherein the width W and length L of the air outlet and the diameter D of the wind wheel inlet satisfy: LW < 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. The air duct assembly according to any one of claims 1 to 15, wherein a plurality of air deflectors are disposed in the air outlet, the plurality of air deflectors are spaced apart along a length direction of the air outlet, and both ends of each air deflector in a width direction are respectively connected to both ends of the air outlet in the width direction.
17. The air duct assembly of claim 16, wherein the air deflection plate has a decreasing thickness in the direction of airflow.
18. 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 1-17, the first housing being connected to the second housing, the air duct inlet being in communication with the air intake channel.
19. The air conditioner according to claim 18, 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.
CN201910860427.1A 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same Pending CN112484275A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910860427.1A CN112484275A (en) 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same
PCT/CN2019/109129 WO2021046944A1 (en) 2019-09-11 2019-09-29 Air duct assembly and air conditioner having same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910860427.1A CN112484275A (en) 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same

Publications (1)

Publication Number Publication Date
CN112484275A true CN112484275A (en) 2021-03-12

Family

ID=74920423

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910860427.1A Pending CN112484275A (en) 2019-09-11 2019-09-11 Air duct assembly and air conditioner with same

Country Status (1)

Country Link
CN (1) CN112484275A (en)

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