CN109307322A - Air conditioner indoor unit and air conditioner - Google Patents

Air conditioner indoor unit and air conditioner Download PDF

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Publication number
CN109307322A
CN109307322A CN201811380196.6A CN201811380196A CN109307322A CN 109307322 A CN109307322 A CN 109307322A CN 201811380196 A CN201811380196 A CN 201811380196A CN 109307322 A CN109307322 A CN 109307322A
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CN
China
Prior art keywords
evaporator section
wind wheel
air conditioner
indoor unit
air
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.)
Granted
Application number
CN201811380196.6A
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Chinese (zh)
Other versions
CN109307322B (en
Inventor
刘乾坤
王锡栋
凌敬
覃强
邹奎芳
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
Guangdong Midea Refrigeration 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, Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201811380196.6A priority Critical patent/CN109307322B/en
Publication of CN109307322A publication Critical patent/CN109307322A/en
Priority to PCT/CN2019/109147 priority patent/WO2020103580A1/en
Application granted granted Critical
Publication of CN109307322B publication Critical patent/CN109307322B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20Casings or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F13/222Means for preventing condensation or evacuating condensate for evacuating condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The present invention discloses a kind of air conditioner indoor unit and air conditioner, wherein, air conditioner indoor unit includes shell, the rear side of the shell is after being installed towards installation carrier, the shell offers air inlet and air outlet, and it is formed with the air duct for being connected to the air inlet and air outlet, wind wheel is equipped in the air duct, and enclose the evaporator on the outside of the wind wheel;The evaporator includes rear evaporator section, it is described after evaporator section close to the shell rear side, it is described after evaporator section in up and down direction formed angle γ, 25 °≤γ≤50 °.Technical solution of the present invention makes the evaporator heat transfer efficiency of air conditioner indoor unit high, and drainage performance is good.

Description

Air conditioner indoor unit and air conditioner
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of air conditioner indoor unit and air conditioner.
Background technique
Wind wheel and evaporator are provided in the air duct of air conditioner indoor unit, outside air enters air duct under the driving of wind wheel Inside, and heat exchange is carried out with evaporator, then the air crossed through heat exchange process is sent in indoor environment, to improve room The temperature of interior air.During air conditioner indoor unit runs and freezes, condensed water, existing air-conditioning are often generated on evaporator In indoor unit, due to designing upper Shortcomings, it is easy to cause the condensed water formed on evaporator exclusion to have some setbacks, it is also possible to lead Induced evaporation device condensed water instills inside tubular wine wheel or air duct, is blown out air outlet.
Summary of the invention
The main object of the present invention is to provide a kind of air conditioner indoor unit, it is intended to so that the evaporator heat exchange of air conditioner indoor unit is imitated Rate is high, and drainage performance is good.
To achieve the above object, air conditioner indoor unit proposed by the present invention, the air conditioner indoor unit include shell, the shell Including chassis assembly and surface frame component, the chassis assembly connects the surface frame component and is enclosed air duct, the surface frame group Part offers the air inlet and air outlet for being connected to the air duct, is equipped with wind wheel in the air duct, and enclose outside the wind wheel The evaporator of side;
The evaporator includes rear evaporator section, and the rear evaporator section is positioned close to the side of the chassis assembly, described Afterwards evaporator section in up and down direction formed angle γ, 25 °≤γ≤50 °.
Optionally, the rear evaporator section is directed away from the chassis assembly direction inclination close to the side of the air inlet and sets It sets.
Optionally, the chassis assembly includes chassis and rear volute tongue, and described rear volute tongue one end connects at the air outlet Simultaneously the other end extends towards the region between the rear evaporator section and wind wheel on the chassis.
Volute tongue forms angle theta, the range of the angle theta close to the outside wall surface and up and down direction of the rear evaporator section after described It is 25 °≤θ≤50 °.
Optionally, on the cross section of the air conditioner indoor unit, the center of the wind wheel to volute tongue closest approach after described The angle that the line of the center of line and the wind wheel to the free end of volute tongue after described is formed is β, 10 °≤β≤30 °.
Optionally, the outer diameter for defining the wind wheel is d, and the wind wheel and the minimum spacing of the rear volute tongue are δ, 0.035d ≤δ≤0.065d。
Optionally, it is α that the line and horizontal plane of the center of the wind wheel to the rear volute tongue closest approach, which are formed by angle, 20°≤α≤55°。
Optionally, it is α that the line and horizontal plane of the center of the wind wheel to the rear volute tongue closest approach, which are formed by angle, The center of the wind wheel to the center of the line of volute tongue closest approach and the wind wheel afterwards to the free end of the rear volute tongue The angle that line is formed is β, α > β.
Optionally, the evaporator further includes middle evaporator section and front evaporator section, evaporator section and the middle evaporator section afterwards One end be connected above the wind wheel, it is described after evaporator section away from one end of the middle evaporator section towards the wind wheel Rear direction extends, and the middle evaporator section extends away from one end of the rear evaporator section towards the front side direction of the wind wheel, institute It states front evaporator section and connects the middle evaporator section away from one end of the rear evaporator section, and be located at the front side of the wind wheel.
The present invention also proposes a kind of air conditioner, including air-conditioner outdoor unit and the air conditioner indoor unit;
The air conditioner indoor unit includes shell, and the rear side of the shell is after being installed towards installation carrier, the shell Body offers air inlet and air outlet, and is formed with the air duct for being connected to the air inlet and air outlet, and wind is equipped in the air duct Wheel, and enclose the evaporator on the outside of the wind wheel;
The evaporator includes rear evaporator section, and the rear evaporator section is positioned close to the side of the chassis assembly, described Afterwards evaporator section in up and down direction formed angle γ, 25 °≤γ≤50 °.
In technical solution of the present invention, outside air is entered in air duct by air inlet under the driving of wind wheel, and in air duct Evaporator carry out heat exchange, be then passed through through wind wheel and air outlet blowout, should during evaporator rear evaporator section setting Position is particularly important, and the rear evaporator section is bigger in the angle γ of up and down direction, then the front face area of rear evaporator section is bigger, heat exchange effect Rate is higher;In addition, rear evaporator section is smaller in the angle γ of up and down direction, the exclusion efficiency of the condensed water formed on evaporator is got over It is high.Therefore, the angle γ value range of the rear evaporator section of evaporator and up and down direction is defined in: 25 °≤γ≤50 °, thus The heat exchange efficiency of evaporator and the reliability of draining can be improved, air conditioner generation can effectively be avoided to blow water phenomenon.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the schematic cross-section of one embodiment of air conditioner indoor unit of the present invention;
Fig. 2 is the partial enlarged view in Fig. 1 at A;
Fig. 3 is the flow field schematic diagram in Fig. 1 in air duct.
Drawing reference numeral explanation:
Label Title Label Title
100 Air conditioner indoor unit 1311 Air inlet
10 Shell 1313 Air outlet
11 Chassis assembly 133 Front panel
111 Chassis 15 Evaporator
113 Volute tongue afterwards 151 Front evaporator section
13 Surface frame component 153 Middle evaporator section
14 The auxiliary heat of electricity 155 Evaporator section afterwards
131 Surface frame 17 Wind wheel
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result, Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model Within enclosing.
The present invention proposes that a kind of air conditioner indoor unit 100, including shell 10, shell 10 include chassis assembly 11 and surface frame component 13, chassis assembly 11 connects surface frame component 13 and is enclosed air duct, and surface frame component 13 offers the air inlet 131 in connection air duct With air outlet 133, it is equipped with wind wheel 17 in air duct, and encloses the evaporator 15 set on 17 outside of wind wheel;
Evaporator 15 includes rear evaporator section 155, and rear evaporator section 155 is positioned close to the side of the chassis assembly 11, i.e., It is positioned close to the rear side of shell 10, rear evaporator section 155 forms angle γ in up and down direction, and 25 °≤γ≤50 °.
Air conditioner indoor unit 100 in the embodiment of the present invention is mainly wall-hanging air conditioner indoor unit, and wind wheel 17 is preferably through-flow Wind wheel 17.The wall-hanging air conditioner indoor unit 100 has use state when being installed, under the use state, casing 10 Rear side is installed on installation carrier by mounting plate, which is usually wall.Define the direction perpendicular to the mounting surface For front-rear direction, and being defined in same level with the perpendicular direction of the front-rear direction is left and right directions, perpendicular to level The direction definition in face is up and down direction, it is generally the case that wall-hanging air conditioner indoor unit is maximum in the size on the left and right directions.It can To understand ground, when the wall-hanging air conditioner indoor unit 100 has non-working condition, front-rear direction, up and down direction and right and left It is adjusted correspondingly to its restriction carried out all in accordance with use state.
In technical solution of the present invention, outside air is entered in air duct by air inlet 1311 under the driving of wind wheel 17, and in Evaporator 15 in air duct carries out heat exchange, is then passed through through wind wheel 17 and the blowout of air outlet 1313, evaporator 15 during being somebody's turn to do Rear evaporator section 155 be arranged position it is particularly important, the rear evaporator section 155 is bigger in the angle γ of up and down direction, then evaporates afterwards The front face area of section 155 is bigger, and heat exchange efficiency is higher;In addition, rear evaporator section 155 is smaller in the angle γ of up and down direction, evaporation The exclusion efficiency of the condensed water formed on device 15 is higher.Therefore, by the angle of the rear evaporator section 155 of evaporator 15 and up and down direction γ value range is defined in: 25 °≤γ≤50 °, specifically can be with value between 25 °, 30 °, 40 ° or 50 ° or 25 °~50 ° Arbitrary value, so as to improve the heat exchange efficiency of evaporator 15 and the reliability of draining, can effectively avoid air conditioner generation blow Water phenomenon.
If the value of γ is less than 25 °, front face area is too small at the rear evaporator section 155, and heat exchange efficiency is too low;If γ's takes When value is less than 50 °, the condensed water generated on rear evaporator section 155 is not easy to be discharged, so that bacteria breed on evaporator, is unfavorable for The health of user.
With further reference to Fig. 1, rear evaporator section 155 is close to chassis assembly 11.
The rear evaporator section 155 of evaporator 15 is arranged close to chassis assembly 11, so as to improve evaporator 15 close to chassis group Air heat-exchange efficiency at part 11, and the condensed water exclusion that evaporator 15 is generated at chassis assembly 11 is high-efficient.
In the embodiment of the present invention, rear evaporator section 155 is directed away from 11 direction of chassis assembly close to the side of air inlet 131 and inclines Tiltedly setting.Rear evaporator section 155 front face area while drainage effect is good is big, heat exchange efficiency is high.
In the embodiment of the present invention, chassis assembly 11 includes chassis 111 and rear volute tongue 113, and rear 113 one end of volute tongue is in air outlet Connecting base plate 111 and the other end extend towards the region between rear evaporator section 155 and wind wheel 17 at 133, and rear volute tongue 113 is close Outside wall surface Yu up and down direction the formation angle theta of evaporator section 155 afterwards, 25 °≤θ≤50 °.
Air is entered in air duct by air inlet 1311, and there are certain resistance, evaporations during flowing through evaporator 15 Device 15, which is equivalent to, has done primary rectification to air-flow, and air flows through speed and direction after evaporator 15 and all changed, and flows through The air of evaporator section 155 is not only influenced the influence also by rear volute tongue 113 by rear 155 position of evaporator section after evaporator 15, Therefore, the outside wall surface and up and down of the angle γ of rear evaporator section 155 and up and down direction and rear volute tongue 113 close to rear evaporator section 155 Direction forms the value of angle theta, flows through angle and speed when 17 blade of wind wheel for the first time to rear 113 near zone air-flow of volute tongue Play the role of conclusive, referring to attached drawing 3, rear 113 near zone I of volute tongue, air-flow flows through the region of 17 blade of wind wheel for the first time II, air-flow flows through the region III of 17 blade of wind wheel for the second time.In the embodiment, the angle γ of rear evaporator section 155 and up and down direction It is limited within the scope of 25 °~50 °, it specifically can be with value appointing between 25 °, 30 °, 40 ° or 50 ° or 25 °~50 ° Meaning value.Volute tongue 113 needs the position phase with rear evaporator section close to the outside wall surface of evaporator 15 with the angle theta of up and down direction afterwards Match, if θ can make the heat exchange efficiency of rear evaporator section reduce less than 25 ° or greater than 50 °, air flow resistance is increased.Will after Within the scope of volute tongue 113 is limited to 25 °~50 ° close to the outside wall surface of evaporator 15 and the angle theta of up and down direction, make rear volute tongue 113 match with rear 155 Layout-Angle of evaporator section, so that the resistance that the air-flow for flowing through rear evaporator section 155 is subject to is smaller, and Wind wheel 17 can be preferably intended to.
In conjunction with Fig. 2, on the cross section of air conditioner indoor unit 100, the line at the center of wind wheel 17 to rear 113 closest approach of volute tongue The angle formed with the line of center to the free end of rear volute tongue 113 of wind wheel 17 is β, 10 °≤β≤30 °.
Specifically, the point nearest apart from wind wheel 17 of volute tongue 113 is A point, the end of the free end of volute tongue 113 after definition after definition Point is B point, and the center for defining wind wheel 17 is O point, and ∠ AOB is β.
Show that the value size of β plays the stability that rear volute tongue 113 nearby enters 17 air-flow of wind wheel through experimental data to dominate Effect.In the embodiment, β is limited between 10 °~30 °, is specifically as follows between 10 °, 20 °, 30 ° or 10 °~30 ° Any value, in the value range, the air-flow that rear volute tongue 113 nearby enters wind wheel 17 is more stable, and air-out effect is more preferable.It should β value value is excessive or too small, will cause the reduction of wind wheel outlet air efficiency.
The outer diameter of wind wheel 17 is defined as d, the minimum spacing of wind wheel 17 and rear volute tongue 113 is δ, 0.035d≤δ≤0.065d. Referring to fig. 2, the distance of A point to wind wheel 17 is δ, and δ value can be 0.035d, 0.04d, 0.045d, 0.05d, 0.06d, 0.065d. When δ value is more than 0.065d, conference is crossed because of the gap between wind wheel 17 and rear volute tongue 113 and makes airflow leaks serious, leads to wind Amount decaying.When δ value is less than 0.035d, cause level of noise higher because the gap between wind wheel 15 and rear volute tongue 113 is too small, sternly Howling can be generated when weight.In the present embodiment, rear minimum range of the volute tongue 113 away from wind wheel 17 is δ, and δ is in the value range, energy Enough ensure circulation efficiency when rear 113 near zone air-flow of volute tongue flows through 17 blade of wind wheel for the first time, reduces the size of vortex And intensity, so that it is guaranteed that high efficiency and low noise when air-flow is by wind wheel 17.
In the embodiment of the present invention, the line and horizontal plane of center to rear 113 closest approach of volute tongue of wind wheel 17 are formed by folder Angle is α, 20 °≤α≤55 °.On cross section defined above, horizontal plane and the chassis 111 of 17 central point O point of wind wheel were defined Intersection point be D point, ∠ DOA is α, and the value of α is 20 °, 30 °, 40 °, 50 °, 55 °.The value of the δ and the value of α, it is common true Circulation efficiency when 113 near zone air-flow of volute tongue flows through 17 blade of wind wheel for the first time after guarantor, further reduces vortex Size and intensity, so that it is guaranteed that the high efficiency and low noise in through-flow air duct.α will cause vortex less than 20 ° or when being greater than 55 ° Increase, the adverse effects such as intensity raising.
Further, α > β.Referring to fig. 2, in the embodiment, the point C point between A point and D point, ∠ AOB=∠ are defined AOC, defining B point to the point part C is rear 113 part of volute tongue.
In the embodiment of the present invention, the angle γ of rear evaporator section 155 and up and down direction, 113 near zone of volute tongue after capable of improving Air-flow passes through the angle and speed when blade for the first time, promotes air-flow in interlobate circulation efficiency, so as to improve 17 leaf of wind wheel Piece reduces windage loss to the mechanical efficiency of air-flow, promotes air duct efficiency, reduces noise.
Referring to Fig. 1, in the embodiment of the present invention, evaporator 15 further includes middle evaporator section 153 and front evaporator section 151, rear to evaporate Section 155 is connected with one end of middle evaporator section 153 in the top of wind wheel 17, and rear evaporator section 155 is away from the middle evaporator section 153 The rear direction of one end towards wind wheel 17 extends, and middle evaporator section 153 is away from one end of rear evaporator section 155 towards the front side of wind wheel 17 Direction extends, and evaporator section 153 deviates from one end of rear evaporator section 155 in the connection of front evaporator section 151, and is located at the front side of wind wheel 17.
In the embodiment, the evaporator 15 that front evaporator section 151, middle evaporator section 153 and rear evaporator section 155 collectively constitute, which encloses, to be set In wind wheel 17, front evaporator section 151 is arranged along the vertical direction, so that 151 drainage efficiency of front evaporator section is high, middle evaporator section 153 In the longitudinal direction between rear evaporator section 155 and front evaporator section 151, and angle is formed with up and down direction, so that evaporator 15 overall heat exchange efficiencies are high, and drainage efficiency is good.
Further, surface frame component 13 includes surface frame 131 and front panel 133,131 the cover of front plane frame and chassis assembly 11, And air inlet 1311 is opened up in the top of evaporator 15, front panel 133 connects surface frame 131, and is located at the front side of shell 10, the bottom of with Disk component 11 is oppositely arranged.In the embodiment, the auxiliary heat of electricity is additionally provided between evaporator 15 and wind wheel 17, in the application air conditioning chamber The air conditioner of machine 100 carries out in heating operations, and the auxiliary heat of electricity is opened, the heating efficiency of air conditioner can be further increased.
The present invention also proposes a kind of air conditioner, which includes air-conditioner outdoor unit and air conditioner indoor unit 100, the air conditioning chamber The specific structure of interior machine 100 is referring to above-described embodiment, since this air conditioner uses whole technical sides of above-mentioned all embodiments Case, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, this is no longer going to repeat them.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly It is included in other related technical areas in scope of patent protection of the invention.

Claims (10)

1. a kind of air conditioner indoor unit, which is characterized in that including shell, the shell includes chassis assembly and surface frame component, described Chassis assembly connects the surface frame component and is enclosed air duct, and the surface frame component offers the air inlet for being connected to the air duct And air outlet, wind wheel is equipped in the air duct, and enclose the evaporator on the outside of the wind wheel;
The evaporator includes rear evaporator section, and the rear evaporator section is positioned close to the side of the chassis assembly, steam after described Send out section in up and down direction formed angle γ, 25 °≤γ≤50 °.
2. air conditioner indoor unit as described in claim 1, which is characterized in that evaporator section is close to the side of the air inlet after described The chassis assembly direction is directed away to be obliquely installed.
3. air conditioner indoor unit as described in claim 1, which is characterized in that the chassis assembly includes chassis and rear volute tongue, institute It states rear volute tongue one end and connects the chassis and the other end at the air outlet towards the area after described between evaporator section and wind wheel Domain extends.
4. air conditioner indoor unit as claimed in claim 3, which is characterized in that outer wall of the volute tongue close to the rear evaporator section after described Face and up and down direction form angle theta, and the range of the angle theta is 25 °≤θ≤50 °.
5. air conditioner indoor unit as claimed in claim 3, which is characterized in that described on the cross section of the air conditioner indoor unit The line of the center of wind wheel to the center of the line of volute tongue closest approach and the wind wheel afterwards to the free end of the rear volute tongue The angle of formation is β, 10 °≤β≤30 °.
6. air conditioner indoor unit as claimed in claim 3, which is characterized in that define the wind wheel outer diameter be d, the wind wheel with The minimum spacing of volute tongue is δ, 0.035d≤δ≤0.065d after described.
7. air conditioner indoor unit as claimed in claim 3, which is characterized in that the center of the wind wheel to the rear volute tongue closest approach Line and horizontal plane to be formed by angle be α, 20 °≤α≤55 °.
8. air conditioner indoor unit as claimed in claim 3, which is characterized in that the center of the wind wheel to the rear volute tongue closest approach Line and horizontal plane to be formed by angle be α, the line and the wind at the center of the wind wheel to volute tongue closest approach after described The angle that the line of the center of wheel to the free end of the rear volute tongue is formed is β, α > β.
9. air conditioner indoor unit as claimed in any of claims 1 to 8 in one of claims, which is characterized in that during the evaporator further includes Evaporator section and front evaporator section, the rear evaporator section is connected above the wind wheel with one end of the middle evaporator section, described Evaporator section extends away from the rear direction of one end of the middle evaporator section towards the wind wheel afterwards, and the middle evaporator section is away from described One end of evaporator section extends towards the front side direction of the wind wheel afterwards, and the front evaporator section connects the middle evaporator section away from described One end of evaporator section afterwards, and it is located at the front side of the wind wheel.
10. a kind of air conditioner, which is characterized in that including air-conditioner outdoor unit and empty as in one of claimed in any of claims 1 to 9 Adjust indoor unit.
CN201811380196.6A 2018-11-19 2018-11-19 Air conditioner indoor unit and air conditioner Active CN109307322B (en)

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CN201811380196.6A CN109307322B (en) 2018-11-19 2018-11-19 Air conditioner indoor unit and air conditioner
PCT/CN2019/109147 WO2020103580A1 (en) 2018-11-19 2019-09-29 Air conditioner indoor unit and air conditioner

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Application Number Priority Date Filing Date Title
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CN109307322B CN109307322B (en) 2023-04-25

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CN111271774A (en) * 2019-12-18 2020-06-12 宁波奥克斯电气股份有限公司 Air duct bottom shell and air conditioner
CN114198327A (en) * 2021-12-09 2022-03-18 珠海格力电器股份有限公司 Air duct structure and indoor unit

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