CN112880028A - Air conditioner indoor unit and air conditioner - Google Patents
Air conditioner indoor unit and air conditioner Download PDFInfo
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- CN112880028A CN112880028A CN201911218981.6A CN201911218981A CN112880028A CN 112880028 A CN112880028 A CN 112880028A CN 201911218981 A CN201911218981 A CN 201911218981A CN 112880028 A CN112880028 A CN 112880028A
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- 238000009792 diffusion process Methods 0.000 claims abstract description 12
- 238000004378 air conditioning Methods 0.000 claims description 10
- 239000003507 refrigerant Substances 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 22
- 230000008859 change Effects 0.000 description 19
- 230000000694 effects Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000004069 differentiation Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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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
本发明公开一种空调室内机和空调器，其中，空调室内机，包括蜗壳、蜗舌和风轮，蜗壳与所蜗舌之间形成有风道，风轮设置在风道内，蜗舌包括舌根以及连接舌根的扩压段，舌根的位于所述风道内的导风面设有多个齿凸，多个齿凸沿风轮轴向间隔排布，齿凸沿舌根的自由端向扩压段方向延伸；部分齿凸的高度大于另一部分齿凸的高度；和/或，部分齿凸的齿顶形状与另一部分齿凸的齿顶形状互异；和/或，部分齿凸的宽度大于另一部分齿凸的宽度；和/或，部分齿凸的长度大于另一部分齿凸的长度；和/或，相邻两齿凸之间具有过风槽，舌根上具有多个过风槽，部分过风槽的宽度大于另一部分过风槽的宽度。本发明技术方案具有消除异音、提升音质的特点。
The invention discloses an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit includes a volute, a volute tongue and a wind wheel, an air duct is formed between the volute and the volute tongue, the wind wheel is arranged in the air duct, and the volute tongue includes The tongue base and the diffuser section connecting the tongue base, the air guide surface of the tongue base located in the air duct is provided with a plurality of tooth projections, the tooth projections are arranged at intervals along the axial direction of the wind wheel, and the tooth projections extend to the diffusion section along the free end of the tongue base The height of some lobes is greater than the height of another part of the lobes; and/or the shape of the tops of some lobes is different from that of another part of the lobes; and/or the width of some lobes is larger than that of another part of the lobes The width of a part of the lobes; and/or, the length of part of the lobes is greater than the length of another part of the lobes; and/or, there is an air-passing groove between two adjacent tooth convexes, and there are multiple air-passing grooves on the tongue root; The width of the air trough is larger than the width of the other part of the air trough. The technical solution of the present invention has the characteristics of eliminating abnormal sound and improving sound quality.
Description
Technical Field
The invention relates to the field of air treatment, in particular to an air conditioner indoor unit and an air conditioner.
Background
With the improvement of living standard, people have higher and higher requirements on living electric appliances, such as noise control of an air conditioner. The existing air conditioner indoor units have the problems of poor tone quality, squeal and the like, and the use experience of users is seriously influenced.
Disclosure of Invention
The invention mainly aims to provide an air conditioner indoor unit, aiming at reducing noise and improving the quality of outlet air sound of the air conditioner indoor unit.
In order to achieve the purpose, the air-conditioning indoor unit provided by the invention comprises a volute, a volute tongue and a wind wheel, wherein an air duct is formed between the volute and the volute tongue, the wind wheel is arranged in the air duct, the volute tongue comprises a tongue root and a diffusion section connected with the tongue root, a plurality of tooth bulges are arranged on a wind guide surface of the tongue root in the air duct, the tooth bulges are axially arranged at intervals along the wind wheel, and the tooth bulges extend to the direction of the diffusion section along the free end of the tongue root;
the height of part of the tooth bulges is greater than that of the other part of the tooth bulges; and/or the presence of a gas in the gas,
the tooth top shape of part of the tooth protrusions is different from that of the other part of the tooth protrusions; and/or the presence of a gas in the gas,
the width of one part of the tooth protrusions is larger than that of the other part of the tooth protrusions; and/or the presence of a gas in the gas,
the length of one part of the tooth projection is greater than that of the other part of the tooth projection; and/or the presence of a gas in the gas,
the two adjacent tooth bulges are provided with air passing grooves, the tongue root is provided with a plurality of air passing grooves, and the width of one part of the air passing groove is greater than that of the other part of the air passing groove.
Optionally, a part of the tooth protrusions are first tooth protrusions with rounded tooth tops, and another part of the tooth protrusions are second tooth protrusions with sharp tooth tops.
Optionally, be equipped with on the tongue root a plurality ofly first tooth is protruding and a plurality of the second tooth is protruding, adjacent two the installation zone has between the second tooth is protruding, it is a plurality of to have on the tongue root the installation zone, first tooth is protruding to be set up the installation zone, at least two the protruding quantity of first tooth in the installation zone is different.
Optionally, the tooth convex comprises a bending part and a rear part, the rear part is connected to the end, far away from the diffusion section, of the bending part, the windward side of the bending part of the first tooth convex is an arc surface, and the windward side of the bending part of the second tooth convex is an inclined surface.
Optionally, the length of the bending part is smaller than that of the rear part.
Optionally, the windward side of the bend abuts the inside surface of the diffuser section.
Optionally, the windward side of the rear portion is a sloping surface.
Optionally, the length of one part of the rear portion is greater than the length of another part of the rear portion.
Optionally, the width of one part of the tooth protrusions is 1.5-2.5 times that of the other part of the tooth protrusions.
Optionally, the air-conditioning indoor unit has a chassis, and the volute tongue is separated from the chassis and connected to the chassis.
The invention further provides an air conditioner which comprises an air conditioner outdoor unit and the air conditioner indoor unit, wherein the air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe.
According to the technical scheme, the tooth protrusions are arranged on the inner surface of the tongue root, so that the airflow at the tongue root is changed, and the tooth protrusions are distributed at intervals along the axial direction of the wind wheel, so that the airflow distribution of the tongue root in the axial direction of the wind wheel is differentiated, the resonance of the airflow is favorably damaged, and the tone quality is improved. The tooth is protruding to be located tongue root department, consequently when the tooth is protruding to make the air flow change in tongue root department, can be to lieing in the air current of tongue root low reaches diffusion section department produces the influence, is favorable to promoting the air-out tone quality in whole wind channel. The height of the tooth protrusions is larger than that of the other tooth protrusions, the tooth protrusions can cause the change of air flow on the tooth protrusions due to the change of the height, the air flow on the tongue root is more variable, and the effects of breaking air flow resonance, eliminating squeal and improving tone quality can be enhanced. The shape of the addendum of one part of the tooth protrusions is different from that of the other part of the tooth protrusions, so that the airflow direction on the tooth protrusions is different; the width of one part of the tooth protrusions is larger than that of the other part of the tooth protrusions, so that the airflow flow on the tongue root can be different in the axial direction of the wind wheel; the length of part of the tooth protrusions is larger than that of the other part of the tooth protrusions, so that the air flow on the tongue root is different in the air outlet direction; through setting up the wind groove of crossing of different width, can make the tongue root go up airflow flow and appear the difference in the axial of wind wheel, resonance can be destroyed to the air current of differentiation, is favorable to eliminating the whistling, promotes tone quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is an exploded view of a first embodiment of an indoor unit of an air conditioner according to the present invention;
fig. 2 is a sectional view of the air conditioning indoor unit of fig. 1;
fig. 3 is a schematic structural view of a chassis of the air conditioning indoor unit of fig. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of a base plate of an indoor unit of an air conditioner according to a second embodiment of the present invention;
fig. 6 is a partial enlarged view of fig. 5 at B;
FIG. 7 is a schematic structural view of a chassis of a third embodiment of an indoor unit of an air conditioner according to the present invention;
fig. 8 is a partial enlarged view at C in fig. 7;
fig. 9 is a schematic structural view of a chassis of an indoor unit of an air conditioner according to a fourth embodiment of the present invention;
FIG. 10 is an enlarged view of a portion of FIG. 9 at D;
fig. 11 is a schematic structural view of a chassis of a fifth embodiment of an indoor unit of an air conditioner according to the present invention;
FIG. 12 is an enlarged view of a portion of FIG. 11 at E;
FIG. 13 is a schematic view of a chassis of an indoor unit for an air conditioner according to a seventh embodiment of the present invention;
FIG. 14 is an enlarged view of a portion of FIG. 13 at F;
FIG. 15 is a schematic view of a tongue root of an eighth embodiment of an indoor unit of an air conditioner according to the present invention;
fig. 16 is a schematic structural view of a tongue root of a ninth embodiment of an indoor unit of an air conditioner according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an indoor unit of an air conditioner.
In a first embodiment of the present invention, as shown in fig. 1 to 4, the air conditioning indoor unit includes a volute 100, a volute tongue 200, and a wind wheel 300, an air duct is formed between the volute 100 and the volute tongue 200, the wind wheel 300 is disposed in the air duct, the volute tongue 200 includes a tongue root 210 and a diffusion section 220 connected to the tongue root 210, a wind guide surface 212 of the tongue root 210 in the air duct is provided with a plurality of teeth 230, the teeth 230 are arranged at intervals along an axial direction of the wind wheel 300, and the teeth 230 extend toward the diffusion section 220 along a free end 211 of the tongue root 210; the height of one part of the tooth protrusions 230 is greater than that of the other part of the tooth protrusions 230. The wind wheel 300 of the indoor unit of the air conditioner rotates, so that airflow is generated in the air duct and flows to the pressure expansion plate from the tongue root 210 of the volute tongue 200. The tongue root 210 and the diffuser section 220 form an included angle, and the wind direction of the airflow is changed when the airflow flows from the tongue root 210 to the diffuser section 220. The air outlet of the air duct is located at the front ends of the volute tongue 200 and the volute 100. The distance from the tooth protrusions 230 to the wind wheel 300 is smaller than the distance from the inner surface of the tongue root 210 to the wind wheel 300, that is, the height of the air channel at the tooth protrusions 230 is smaller than the height of the air channel at the inner surface of the tongue root 210 between the tooth protrusions 230, so the flow rate of the air at the tooth protrusions 230 is smaller than the air flow rate at the inner surface of the tongue root 210 between the tooth protrusions 230. It should be noted that the height of the tooth protrusion 230 specifically refers to the distance from the tooth top 233 to the inner surface of the tongue base 210. The tongue root 210 is a part of the volute tongue 200 close to the wind wheel 300, the diffuser section 220 is connected with one end of the tongue root 210, the diffuser section 220 extends from back to front, the tongue root 210 and the diffuser section 220 form an included angle, and the free end 211 of the tongue root 210 refers to one end of the tongue root 210 far away from the diffuser section 220. The surface of the tongue root 210 close to the wind wheel 300 is the wind guide surface 212. The length of the tooth protrusion 230 refers to the distance between the edge of the tooth protrusion 230 near the diffuser section 220 and the edge of the tooth protrusion 230 near the free end 211. The tooth width is the maximum distance between both sides of the tooth protrusion 230 in the axial direction of the wind wheel 300.
According to the technical scheme of the invention, the tooth protrusions 230 are arranged on the inner surface of the tongue root 210, so that the airflow at the tongue root 210 is changed, and the tooth protrusions 230 are arranged at intervals along the axial direction of the wind wheel 300, so that the airflow distribution of the tongue root 210 in the axial direction of the wind wheel 300 is differentiated, the resonance of the airflow is favorably damaged, and the tone quality is improved. The tooth protrusion 230 is located at the tongue root 210, so that when the tooth protrusion 230 causes the airflow to change at the tongue root 210, the airflow at the diffuser section 220 located at the downstream of the tongue root 210 is affected, which is beneficial to improving the air outlet tone quality of the whole air duct. The height of part of the tooth protrusions 230 is greater than that of the other part of the tooth protrusions 230, and the change of the air flow on the tooth protrusions 230 is caused by the change of the height of the tooth protrusions 230, so that the air flow on the tongue root 210 is more variable, and the effects of breaking the air flow resonance, eliminating the squeal and improving the sound quality can be enhanced.
In the first embodiment, the heights of some of the teeth 230 may be the same, and the heights of other teeth 230 are different, which can also cause the change of the airflow flow, thereby destroying resonance and improving the sound quality; the heights of the teeth 230 on the tongue root 210 are different, that is, the heights of any two teeth 230 on the tongue root 210 are different, so that the change of the air flow on the tongue root 210 is more complicated, the characteristic of low possibility of air flow resonance is achieved, and the sound quality can be effectively improved; the heights of the teeth 230 are different, and the heights of the teeth 230 may be regularly changed or irregularly changed, and both have the function of improving the sound quality.
The volute tongue 200 is not limited to the above technical solution, and in the second embodiment, as shown in fig. 5 and 6, the shape of the tooth top 233 of one part of the tooth protrusion 230 is different from the shape of the tooth top 233 of another part of the tooth protrusion 230, and the air flow in the air duct flows along the surface of the tooth protrusion 230 close to the wind wheel 300, so that the change of the shape of the tooth top 233 can cause the change of the air flow direction, thereby interrupting the resonance of the air flow, facilitating the elimination of whistling and the improvement of sound quality; specifically, the tooth tops 233 of some of the tooth protrusions 230 may have the same shape, and the tooth tops 233 of other part of the tooth protrusions 230 may have different shapes, so as to improve the sound quality; alternatively, the shapes of the tooth tops 233 of all the tooth protrusions 230 on the tongue root 210 are different; or, the tooth tops 233 of two adjacent tooth protrusions 230 have different shapes, and the change of the tooth tops 233 may be regular or irregular, so that resonance can be effectively destroyed, and the sound quality can be improved.
Further, in the second embodiment, as shown in fig. 6, a part of the tooth protrusions 230 is a first tooth protrusion 234 whose tooth top 233 presents a fillet shape, and another part of the tooth protrusions 230 is a second tooth protrusion 235 whose tooth top 233 presents a sharp angle shape, and airflow at the tooth top 233 of the first tooth protrusion 234 and the tooth top 233 of the second tooth protrusion 235 not only have difference in flow direction, but also have difference in flow rate change, and these differences can break airflow resonance, which is favorable for improving the quality of outlet air of the air conditioning indoor unit. In addition, compared to the volute tongue 200 in which all the tooth crests 233 of the tooth protrusions 230 are formed in a rounded shape, the air conditioning indoor unit of the second embodiment generates less noise when it is discharged. Of course, the tooth protrusions 230 are not limited to the above scheme, and it is also possible that the tooth tops 233 of some of the tooth protrusions 230 are rounded, and the tooth tops 233 of other some of the tooth protrusions 230 are flat tops; or, the tooth tops 233 of some of the tooth protrusions 230 form an included angle, and the tooth tops 233 of the other part of the tooth protrusions 230 are flat tops, so that the difference of the airflow direction can be realized, and the air outlet tone quality is improved.
Further, in a second embodiment, as shown in fig. 6, a plurality of the first teeth 234 and a plurality of the second teeth 235 are provided on the tongue base 210, a mounting area 236 is provided between two adjacent second teeth 235, a plurality of the mounting areas 236 are provided on the tongue base 210, the first teeth 234 are provided in the mounting areas 236, and the number of the first teeth 234 in at least two of the mounting areas 236 is different. The difference of the protruding 234 quantity of first tooth in the installation zone 236 can lead to the second tooth 235 is arranged irregularly, makes the air current condition of different installation zones 236 different easily, can effectively increase the differentiation degree of air current is favorable to destroying resonance on the tongue root 210 to promote air-out tone quality. Specifically, the number of the first protruding teeth 234 in the mounting region 236 may be the same, and the number of the first protruding teeth 234 in the mounting region 236 may be different in another portion, or the number of the first protruding teeth 234 in the mounting region 236 on the tongue root 210 may be different, or the number of the first protruding teeth 234 in two adjacent mounting regions 236 may be different, so that differentiated air supply may be implemented, and the air outlet tone quality may be improved.
Further, in the second embodiment, as shown in fig. 6, the tooth protrusion 230 includes a bending portion 231 and a rear portion 232, the rear portion 232 is connected to one end of the bending portion 231, which is far away from the diffuser section 220, a windward side of the bending portion 231 of the first tooth protrusion 234 is an arc surface, and a windward side of the bending portion 231 of the second tooth protrusion 235 is an inclined surface. The air flow flows from the rear portion 232 of the tooth protrusion 230 to the bent portion 231 and then to the diffuser section 220. The windward side of the bending part 231 of the first tooth bulge 234 is an arc surface, and compared with the second tooth bulge 235 with the windward side of the bending part 231 being an inclined surface, the airflow steering is smoother, and the airflow at the bending part 231 on the second tooth bulge 235 is larger, so that a difference is formed. Certainly, the windward side of the bending portion 231 is limited to the above scheme, and the windward side of the bending portion 231 of the first tooth projection 234 may be a curved surface, and the windward side of the bending portion 231 of the second tooth projection 235 is an arc surface; or, the windward side of the bending portion 231 of the first tooth projection 234 is a curved surface, and the windward side of the bending portion 231 of the second tooth projection 235 is an inclined surface.
Further, in the second embodiment, as shown in fig. 6, the windward side of the rear portion 232 is an inclined surface, and both the windward side of the rear portion 232 of the second tooth protrusion 235 and the windward side of the bent portion 231 thereof are inclined surfaces, so as to form the pointed tooth crest 233, it should be noted that the windward side of the rear portion 232 of the second tooth protrusion 235 and the windward side of the bent portion 231 thereof may be an acute angle, a right angle, or an obtuse angle. One end of the windward side of the rear portion 232 is connected to the inner surface of the tongue root 210, and the other end is connected to the windward side of the bent portion 231. The windward side of the rear portion 232 is a slope, which facilitates smooth variation of the airflow on the rear portion 232 and smooth guiding of the airflow to the diffuser section 220.
The volute tongue 200 is not limited to the above technical solution, and in a third embodiment, as shown in fig. 7 and 8, a width of one part of the tooth protrusions 230 is greater than a width of another part of the tooth protrusions 230, specifically, the width of the tooth protrusions 230 refers to a width of the tooth protrusions 230 in the axial direction of the wind wheel 300, and a change in the width of the wind wheel 300 can change an airflow of the tongue root 210 in the axial direction of the wind wheel 300, thereby being beneficial to breaking resonance and eliminating squeal to improve sound quality. Specifically, the widths of the teeth 230 may not be equal, and the widths of the teeth 230 may be different; alternatively, the widths of the tooth protrusions 230 on the tongue root 210 are different, that is, the widths of any two tooth protrusions 230 are different, so that the air flow distribution is complex, and the squeal elimination effect is good; also, the widths of the adjacent two tooth protrusions 230 are different, so that resonance can be broken, and the air outlet tone quality can be improved.
Further, in the third embodiment, as shown in fig. 8, the width of one part of the teeth 230 is 1.5 to 2.5 times the width of the other part of the teeth 230. Specifically, the width of a part of the teeth protrusions 230 may be 2 times the width of another part of the teeth protrusions 230, the width of a part of the teeth protrusions 230 may be 1.5 times the width of another part of the teeth protrusions 230, or the width of a part of the teeth protrusions 230 may be 2.5 times the width of another part of the teeth protrusions 230. If the widths of the two portions of the teeth protrusions 230 are too close to each other, differentiation is difficult to form, the resonance destroying effect is poor, and if the ratio is too large, the width of one portion of the teeth protrusions 230 is easily too large, and the airflow on the teeth protrusions 230 is not different, so that noise caused by airflow resonance is easily generated.
The volute tongue 200 is not limited to the above technical solution, and in the fourth embodiment, as shown in fig. 9 and 10, the length of one part of the tooth protrusion 230 is greater than the length of the other part of the tooth protrusion 230, and the difference in the lengths of the tooth protrusions 230 may cause the air flow distribution of the tongue root 210 in the air outlet direction to be different, which is beneficial to breaking resonance and improving sound quality.
Further, in the fourth embodiment, as shown in fig. 10, the windward side of the bent portion 231 abuts against the inner side surface of the diffuser section 220. The bending portion 231 can be used for guiding the airflow on the tooth protrusion 230 to enter the diffusion section 220, so that a flow guiding effect is achieved, the windward side of the bending portion 231 is adjacent to the inner side surface of the diffusion section 220, and the airflow can be favorably enabled to be smoothly transferred from the tooth protrusion 230 to the diffusion section 220.
Further, in the fourth embodiment, as shown in fig. 10, the length of the bent portion 231 is smaller than the length of the rear portion 232. Because the wind speed at the tongue root 210 of the volute tongue 200 is high, if the airflow flow or the wind direction change too much, the stability of the airflow in the air duct is damaged. The rear portion 232 has a longer length, so that the rear portion 232 of the tooth protrusion 230 has a longer distance for changing the air flow, which is beneficial to ensuring the stable air flow on the tooth protrusion 230. Because the function of the portion 231 of bending turns to for worker's air current, the length of the portion 231 of bending is shorter also can effectively guide the air current to rotate, does not influence the function of the portion 231 of bending.
Further, in the fourth embodiment, as shown in fig. 10, the length of one portion of the rear portion 232 is greater than the length of another portion of the rear portion 232. The difference of airflow change on the tooth protrusions 230 is realized by changing the length of the rear portion 232, so that the effects of disturbing airflow and destroying resonance to improve the tone quality are achieved. Specifically, in the air outlet direction, the rear end of one part of the tooth protrusions 230 is located at the front side of the rear end of the other part of the tooth protrusions 230.
Certainly, the way of implementing the length differentiation of the tooth protrusions 230 is not limited to the above scheme, and in other embodiments, the front end of one part of the tooth protrusions 230 may be located at the front side of the front end of the other part of the tooth protrusions 230 in the air outlet direction; in the air outlet direction, the lengths of the bent portion 231 and the rear portion 232 of a part of the tooth projection 230 are smaller than the length of the other bent portion 231 and the rear portion 232 which do not seal the tooth projection 230.
The volute tongue 200 is not limited to the above technical solutions, and in the fifth embodiment, as shown in fig. 11 and 12, an air passing groove 240 is provided between two adjacent tooth protrusions 230, the tongue root 210 has a plurality of air passing grooves 240, and the width of one part of the air passing grooves 240 is greater than that of the other part of the air passing grooves 240. The change of the width of the air passing groove 240 can also cause the change of the air flow on the tongue root 210 in the axial direction of the wind wheel 300, so that resonance can be effectively destroyed, and the air outlet tone quality is improved. Specifically, the widths of two adjacent air passing grooves 240 may be different; alternatively, the widths of some of the air passing grooves 240 are the same, and the widths of the other air passing grooves 240 which are not sealed are different; also, the width of the air passing groove 240 on the tongue root 210 is different, so that the tongue root 210 has the characteristic of large air flow differentiation degree, which is beneficial to forced resonance and improves the tone quality of air flow.
Further, the air-conditioning indoor unit has a base plate 400, the volute tongue 200 is separated from the base plate 400, and the volute tongue 200 is connected to the base plate 400. The air-conditioning indoor unit further comprises a face frame 500, the base plate 400 is connected with the face frame 500, the base plate 400 is provided with a part of the volute 100, the face frame 500 is provided with the other part of the volute 100, and the face frame 500 is connected with the base plate 400 and spliced to form the volute 100. Because the plurality of teeth protrusions 230 are arranged on the volute tongue 200, the processing difficulty is high, and therefore, the volute tongue 200 and the chassis 400 are arranged in a split manner, and the volute tongue 200 and the chassis 400 are convenient to produce and process. The volute tongue 200 and the chassis 400 can be clamped, connected by a screw, inserted and the like. Of course, the volute tongue 200 and the chassis 400 may also be integrally formed, and have the advantages of tight connection, difficult air leakage in the air duct, and the like.
The volute tongue 200 is not limited to the above technical solution, and in the sixth embodiment, the height of one part of the tooth protrusions is greater than that of the other part of the tooth protrusions; the tooth top shape of part of the tooth protrusions is different from that of the other part of the tooth protrusions; the width of one part of the tooth protrusions is larger than that of the other part of the tooth protrusions; the length of one part of the tooth protrusions is greater than that of the other part of the tooth protrusions; and adjacent two it crosses the wind groove to have between the tooth is protruding, have a plurality ofly on the tongue root cross the wind groove, part the width that crosses the wind groove is greater than another part the width of crossing the wind groove has the tongue root and goes up the air current and upwards changeable at the wind wheel, also has the characteristics of difference in the air-out direction, has that resonance destruction is effectual, tone quality promotion effect is obvious characteristics. Of course, it is also possible that the height of some of the teeth bulges is greater than that of the other part of the teeth bulges, and the width of some of the teeth bulges is greater than that of the other part of the teeth bulges; the shape of the addendum of a part of the tooth protrusions is different from that of the addendum of the other part of the tooth protrusions, an air passing groove is formed between every two adjacent tooth protrusions, the tongue root is provided with a plurality of air passing grooves, and the width of the air passing grooves of the part of the tongue root is larger than that of the air passing grooves of the other part of the tongue root; the height of part of the teeth protrusions is larger than that of the other part of the teeth protrusions, the tooth crest shape of the part of the teeth protrusions is different from that of the other part of the teeth protrusions, the width of the part of the teeth protrusions is larger than that of the other part of the teeth protrusions, and the length of the part of the teeth protrusions is larger than that of the other part of the teeth protrusions, so that howling is eliminated, and the tone quality is improved.
The volute tongue is not limited to the above technical solution, and in the seventh embodiment, as shown in fig. 13 and 14, the air passing groove 240 includes a front section 241 and a rear section 242, and the rear section 242 is adjacent to one end of the front section 241 away from the diffuser section 220; a first included angle alpha between two side wall surfaces of the front section 241 is 0-90 degrees, the front section 241 is arranged in a flaring manner along the air outlet direction, and at least part of the first included angles alpha are different in angle; and a second included angle beta between two side wall surfaces of the rear section 242 is 0-90 degrees, the rear section 242 is in necking arrangement along the air outlet direction, and at least part of angles in the second included angles beta are different. In addition, the rear sections 242 of the air passing grooves 240 are respectively arranged in a necking manner along the air outlet direction, so that when the rear sections 242 of the air passing grooves 240 are used for air inlet, air on two sides of the air passing grooves 240 tends to flow into the air passing grooves 240, the influence range of the air passing grooves 240 on air flow is enlarged, air inlet mutual interference between two adjacent air passing grooves 240 is also enlarged, resonance can be damaged, and squeal can be eliminated. The front sections 241 of the multiple air passing grooves 240 are flared, so that the air outlet flows between two adjacent air passing grooves 240 are interfered with each other, which is beneficial to breaking resonance to eliminate squeal. Moreover, the angles of the first included angle α and the second included angle β are different, so that the air outlet volume and the air inlet volume of the air passing groove 240 are different, resonance can be further destroyed, squeal is eliminated, and the air outlet tone quality can be effectively improved.
Further, in the seventh embodiment, as shown in fig. 13 and 14, under the rated power of the indoor unit of an air conditioner, the linear velocity of the outer edge of the wind wheel 300 is greater than 1.5 times the air flow velocity at the tongue root 210, and the first included angle α is greater than the second included angle β. When the speed of the airflow at the tongue root 210 of the volute tongue 200 in the air duct is too high or too low, noise is easily caused, and the quality of the outlet air of the indoor unit of the air conditioner is reduced. When the linear velocity of the outer edge of the wind wheel 300 is greater than 1.5 times of the air flow velocity at the tongue root 210 under the rated power of the indoor unit of the air conditioner, it indicates that the velocity of the air flow at the tongue root 210 is too high, and noise is easily generated, so that the first included angle alpha is set to be greater than the second included angle beta, and the air passing duct can play a role in buffering the air flow, so as to reduce the air flow velocity at the tongue root 210 of the volute tongue 200, so that the air flow velocity at the tongue root 210 tends to be normal, and the sound quality can be improved.
Further, in the seventh embodiment, the first included angle α is 2 ° to 20 ° greater than the second included angle β. When the angle of the first included angle α is excessively larger than the angle of the second included angle β, the wind speed buffered by the wind passage is too low, and abnormal sound is easily generated. And when the angle of the first included angle alpha is too close to the angle of the second included angle beta, the buffering effect of the air passing duct is small, the change of the air speed of the air flow passing through the air passing duct is not large, and the effect of eliminating impurities is poor.
The wind passing groove is not limited to the above technical solution, in the eighth embodiment, as shown in fig. 15, under the rated power of the indoor unit of the air conditioner, the linear velocity of the outer edge of the wind wheel 300 is less than 1.3 times of the air flow velocity at the tongue root 210, the first included angle α is greater than the second included angle β, and when the linear velocity of the outer edge of the wind wheel 300 is less than 1.3 times of the air flow velocity at the tongue root 210 under the rated power of the indoor unit of the air conditioner, it is indicated that the flow velocity of the airflow at the tongue root 210 of the volute tongue 200 is too small, which not only easily generates abnormal sound, but also affects the wind speed and the wind supply distance of the indoor unit of the air conditioner, therefore, setting the first included angle α to be greater than the second included angle β can accelerate the airflow, so that the wind speed of the airflow after flowing through the wind passing groove 240 is increased, which tends to the, the air supply distance can be increased; furthermore, the first included angle α is smaller than the second included angle β by 2 ° to 20 °, when the first included angle α is excessively smaller than the second included angle β, the air flow speed is too fast after passing through the air passage and is liable to generate noise, and the noise volume is increased.
The air passing groove is not limited to the above technical solution, and in a ninth embodiment, as shown in fig. 16, under the rated power of the indoor unit of the air conditioner, the linear velocity of the outer edge of the wind wheel 300 is 1.3 to 1.5 times the air flow velocity at the tongue root 210, and the absolute value of the angle difference between the first included angle α and the second included angle β is less than or equal to 2 °. When the linear velocity of the outer edge of the wind wheel 300 under the rated power is 1.3-1.5 times of the air velocity of the tongue root 210, it indicates that the air velocity of the air flow is normal at the tongue root 210, so that the absolute value of the angle difference between the first included angle alpha and the second included angle beta is controlled to be less than or equal to 2 degrees, the first included angle alpha is larger than the second included angle beta by 0-2 degrees, or the second included angle beta is larger than the first included angle alpha by 0-2 degrees, so that the air velocity flowing through the air groove 240 is not changed greatly, and the air velocity is still kept in a normal air velocity range, and the air quality of the air outlet of the indoor unit of the air conditioner is guaranteed.
The present invention further provides an air conditioner, which includes an outdoor unit and an indoor unit, and the specific structure of the indoor unit of the air conditioner refers to the above embodiments. The air conditioner outdoor unit is connected with the air conditioner indoor unit through a refrigerant pipe, and the air conditioner indoor unit and the air conditioner outdoor unit exchange heat through a refrigerant.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. An air conditioner indoor unit is characterized by comprising a volute, a volute tongue and a wind wheel, wherein an air duct is formed between the volute and the volute tongue, the wind wheel is arranged in the air duct, the volute tongue comprises a tongue root and a diffusion section connected with the tongue root, a plurality of tooth bulges are arranged on a wind guide surface of the tongue root in the air duct, the tooth bulges are axially arranged along the wind wheel at intervals, and the tooth bulges extend to the direction of the diffusion section along the free end of the tongue root;
the height of part of the tooth bulges is greater than that of the other part of the tooth bulges; and/or the presence of a gas in the gas,
the tooth top shape of part of the tooth protrusions is different from that of the other part of the tooth protrusions; and/or the presence of a gas in the gas,
the width of one part of the tooth protrusions is larger than that of the other part of the tooth protrusions; and/or the presence of a gas in the gas,
the length of one part of the tooth projection is greater than that of the other part of the tooth projection; and/or the presence of a gas in the gas,
the two adjacent tooth bulges are provided with air passing grooves, the tongue root is provided with a plurality of air passing grooves, and the width of one part of the air passing groove is greater than that of the other part of the air passing groove.
2. The indoor unit of an air conditioner according to claim 1, wherein a part of the tooth protrusions are first tooth protrusions having a rounded crest, and the other part of the tooth protrusions are second tooth protrusions having a pointed crest.
3. The indoor unit of claim 2, wherein the tongue base is provided with a plurality of the first protrusions and a plurality of the second protrusions, a mounting region is provided between two adjacent second protrusions, the tongue base is provided with a plurality of the mounting regions, the first protrusions are provided in the mounting regions, and the number of the first protrusions in at least two of the mounting regions is different.
4. The indoor unit of claim 2, wherein the tooth protrusion includes a bent portion and a rear portion, the rear portion is connected to an end of the bent portion away from the diffuser section, a windward surface of the bent portion of the first tooth protrusion is an arc surface, and a windward surface of the bent portion of the second tooth protrusion is an inclined surface.
5. The indoor unit of claim 4, wherein the bent portion has a length smaller than that of the rear portion.
6. The indoor unit of air conditioning as claimed in claim 4, wherein a windward surface of the bent portion abuts against an inner side surface of the diffuser section.
7. An indoor unit of an air conditioner according to claim 4, wherein a windward surface of the rear portion is a slope.
8. An indoor unit of an air conditioner according to claim 4, wherein a length of a part of the rear portion is greater than a length of another part of the rear portion.
9. An indoor unit of an air conditioner according to claim 1, wherein the width of a part of the teeth is 1.5 to 2.5 times the width of another part of the teeth.
10. The indoor unit of any one of claims 1 to 9, wherein the indoor unit has a base plate, and the volute tongue is separately provided from the base plate and connected to the base plate.
11. An air conditioner comprising an outdoor unit and an indoor unit as claimed in any one of claims 1 to 10, wherein the outdoor unit and the indoor unit are connected by refrigerant pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218981.6A CN112880028A (en) | 2019-11-30 | 2019-11-30 | Air conditioner indoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218981.6A CN112880028A (en) | 2019-11-30 | 2019-11-30 | Air conditioner indoor unit and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112880028A true CN112880028A (en) | 2021-06-01 |
Family
ID=76039478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911218981.6A Pending CN112880028A (en) | 2019-11-30 | 2019-11-30 | Air conditioner indoor unit and air conditioner |
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| Country | Link |
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| CN (1) | CN112880028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386668A (en) * | 2023-12-07 | 2024-01-12 | 珠海格力电器股份有限公司 | Volute tongue assembly and air conditioner |
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| US20080181764A1 (en) * | 2004-10-01 | 2008-07-31 | Mitsubish Denki Kabushiki Kaisha | Air Conditioner |
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| CN102042264A (en) * | 2009-10-10 | 2011-05-04 | 珠海格力电器股份有限公司 | Volute tongue with bionic structure and volute using same |
| CN107576041A (en) * | 2017-10-30 | 2018-01-12 | 四川长虹空调有限公司 | Air-conditioning snail tongue, air conditioner room unit and air conditioner |
| CN107939736A (en) * | 2017-12-19 | 2018-04-20 | 广东美的制冷设备有限公司 | Spiral case and there is its indoor apparatus of air conditioner, air conditioner |
| CN211177098U (en) * | 2019-11-30 | 2020-08-04 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080181764A1 (en) * | 2004-10-01 | 2008-07-31 | Mitsubish Denki Kabushiki Kaisha | Air Conditioner |
| CN201429159Y (en) * | 2009-07-16 | 2010-03-24 | 珠海格力电器股份有限公司 | Wall-mounted air conditioner and indoor unit thereof |
| CN102042264A (en) * | 2009-10-10 | 2011-05-04 | 珠海格力电器股份有限公司 | Volute tongue with bionic structure and volute using same |
| CN107576041A (en) * | 2017-10-30 | 2018-01-12 | 四川长虹空调有限公司 | Air-conditioning snail tongue, air conditioner room unit and air conditioner |
| CN107939736A (en) * | 2017-12-19 | 2018-04-20 | 广东美的制冷设备有限公司 | Spiral case and there is its indoor apparatus of air conditioner, air conditioner |
| CN211177098U (en) * | 2019-11-30 | 2020-08-04 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386668A (en) * | 2023-12-07 | 2024-01-12 | 珠海格力电器股份有限公司 | Volute tongue assembly and air conditioner |
| CN117386668B (en) * | 2023-12-07 | 2024-03-26 | 珠海格力电器股份有限公司 | Volute tongue assembly and air conditioner |
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