CN109059233B - Air duct structure and air conditioner - Google Patents
Air duct structure and air conditioner Download PDFInfo
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- CN109059233B CN109059233B CN201811245972.1A CN201811245972A CN109059233B CN 109059233 B CN109059233 B CN 109059233B CN 201811245972 A CN201811245972 A CN 201811245972A CN 109059233 B CN109059233 B CN 109059233B
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- Prior art keywords
- tongue
- air duct
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- volute
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- 230000007423 decrease Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- 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
- F24F13/24—Means for preventing or suppressing noise
-
- 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
The disclosure provides an air duct structure and an air conditioner, and relates to the technical field of air conditioners. The air duct structure comprises a volute cover and a volute seat, wherein a first tongue body and a second tongue body which are connected are arranged on the volute cover, a second tongue body is arranged on the volute seat, the volute cover and the volute seat are detachably connected, an inner air duct and an outer air duct which are mutually communicated are formed, and the first tongue body is connected with the second tongue body to form a first tongue. A first air outlet section is formed between the second tongue body and the air duct opening of the outer air duct, and a second air outlet section is formed between the second tongue body and the air duct opening of the outer air duct. The diameter of the air duct opening of the inner air duct is smaller than that of the air duct opening of the outer air duct, the horizontal length of the first tongue body, the horizontal length of the second tongue body and the horizontal length of the first volute tongue are equal, and the horizontal length of the first air outlet section is equal to the sum of the horizontal length of the second air outlet section and the horizontal length of the second volute tongue. The air duct structure reduces vortex wind phenomenon, reduces use noise and improves user experience.
Description
Technical Field
The disclosure relates to the technical field of air conditioners, and in particular relates to an air duct structure and an air conditioner.
Background
The fan adopts the spiral case to carry out the wind-guiding generally, and the outside wind channel of spiral case is provided with the volute tongue generally and is used for making an uproar falls, among the prior art, because volute tongue structural design is unreasonable, often appears whirlpool wind phenomenon, produces shake and abnormal sound, influences customer experience.
Disclosure of Invention
In view of this, the present disclosure aims to provide an air duct structure to reduce vortex wind phenomenon, reduce noise in use, and improve user experience.
In order to achieve the above purpose, the technical scheme of the present disclosure is realized as follows:
the air duct structure comprises a volute cover and a volute seat, wherein a first tongue body and a second tongue body which are connected are arranged on the volute cover, a second tongue body is arranged on the volute seat, the volute cover and the volute seat are detachably connected, an inner air duct and an outer air duct which are mutually communicated are formed, and the first tongue body is connected with the second tongue body to form a first tongue;
the first tongue body and the second tongue body extend outwards from the air duct opening of the inner air duct, the second tongue body is arranged towards the air duct opening of the outer air duct, a first air outlet section is formed between the second tongue body and the air duct opening of the outer air duct, and a second air outlet section is formed between the second tongue body and the air duct opening of the outer air duct;
the area of the air duct opening of the inner air duct is smaller than that of the air duct opening of the outer air duct, and the horizontal length of the first air outlet section is equal to the sum of the horizontal length of the second air outlet section and the horizontal length of the second volute tongue.
Further, the maximum width of the first volute tongue is equal to the width of the inner air duct, and the maximum width of the first volute tongue and the maximum width of the second volute tongue meet the following relationship:
a/2≤b≤a；
wherein a refers to the maximum width of the first volute tongue; b is the maximum width of the second volute tongue.
Further, the horizontal length of the second air outlet section is not greater than the horizontal length of the second volute tongue, and the horizontal length of the second volute tongue is not greater than the horizontal length of the first volute tongue.
Further, the horizontal length of the second air outlet section is 4 mm-10 mm; the horizontal length of the second volute tongue is 6-15 mm; the horizontal length of the first tongue body, the horizontal length of the second tongue body and the horizontal length of the first volute tongue are all 8-20 mm; the horizontal length of the first air outlet section is 10 mm-25 mm.
Further, the height of the first tongue body, the height of the second tongue body, the height of the first volute tongue and the height of the second volute tongue are set to be 4 mm-15 mm.
Further, the height of the first tongue, the height of the second tongue, the height of the first volute tongue and the height of the second volute tongue are set to 8mm.
Further, the first tongue body comprises a first arc-shaped section and a first oblique extension section which are connected, the second tongue body comprises a platform section and a second oblique extension section which are connected, the platform section is connected with the first oblique extension section, and the second tongue body comprises a second arc-shaped section and a third oblique extension section which are connected;
the first arc-shaped section and the second arc-shaped section are respectively arranged to extend outwards from the air duct opening of the inner air duct, the first arc-shaped section and the second arc-shaped section are detachably connected, the first oblique extension section and the third oblique extension section are detachably connected,
the first oblique extension section, the second oblique extension section and the third oblique extension section are obliquely arranged towards the air duct opening of the outer air duct.
Further, the first oblique extension section and the platform section form an obtuse angle, the second oblique extension section and the first air outlet section form an obtuse angle, the third oblique extension section and the second air outlet section form an obtuse angle, and the included angle between the first oblique extension section and the platform section is larger than the included angle between the second oblique extension section and the first air outlet section.
Further, the included angle between the first oblique extension section and the platform section and the included angle between the first oblique extension section and the platform section are 90-160 degrees, and the included angle between the second oblique extension section and the first air outlet section is 90-135 degrees.
Further, the width of the first inclined extension section gradually decreases from the first arc section to the platform section, the width of the second inclined extension section gradually decreases from the platform section to the first air outlet section, and the width of the third inclined extension section gradually decreases from the second arc section to the second air outlet section.
Compared with the prior art, the air duct structure disclosed by the disclosure has the following advantages:
the utility model discloses an air duct structure, its spiral case lid and spiral case seat can dismantle the connection, form first spiral case tongue and second spiral case tongue to, the first spiral case tongue extends the setting from the wind channel mouth in interior survey wind channel towards the wind channel mouth in outside wind channel, and the second spiral case tongue sets up towards the wind channel mouth in outside wind channel, can make from interior survey wind channel slowly expand towards the air current pressure of outside transport, reduces spiral case tongue whirlwind problem, and, the noise is little, can improve user experience and feel.
Another object of the present disclosure is to provide an air conditioner, which adopts the air duct structure provided by the present disclosure, has less volute tongue wind phenomenon, low noise, and can effectively provide a use experience sense.
In order to achieve the above purpose, the technical scheme of the present disclosure is realized as follows:
the air conditioner comprises a centrifugal wind wheel and an air duct structure. The centrifugal wind wheel is arranged in the inner air duct.
Compared with the prior art, the air conditioner disclosed by the disclosure has the following advantages:
the air conditioner disclosed by the disclosure adopts the air duct structure provided by the disclosure, has less volute tongue wind phenomenon and low noise, and can effectively provide use experience.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate and explain the exemplary embodiments of the disclosure and together with the description serve to explain the disclosure, and do not constitute an undue limitation on the disclosure. In the drawings:
fig. 1 is a schematic structural diagram of an air duct structure according to an embodiment of the disclosure.
Fig. 2 is an enlarged view at X1 in fig. 1.
Fig. 3 is a schematic diagram of a volute cover with an air duct structure according to an embodiment of the disclosure.
Fig. 4, 5 and 6 are enlarged views of X2 in fig. 3.
Fig. 7 is a schematic cross-sectional view of an air duct structure according to an embodiment of the disclosure.
Fig. 8 is an enlarged view at X3 in fig. 7.
Fig. 9 is a schematic structural view of a volute receptacle with an air duct structure according to an embodiment of the disclosure.
Fig. 10, 11 and 12 are enlarged views of X4 in fig. 9.
Fig. 13 is a schematic view of a part of the structure of an air conditioner according to an embodiment of the present disclosure.
Reference numerals illustrate:
1-an air duct structure; 2-an inner side air duct; 3-an outer air duct; 4-a first air duct opening; 5-a second air duct opening; 6-a first volute tongue; 7-a second volute tongue; 8-volute cover; 9-a volute receptacle; 10-a first lateral cap opening; 11-a first helical opening; 12-a first volute section; 13-a first volute extension; 14-a first tongue; 16-a second air outlet section; 17-a first arcuate segment; 18-a first diagonal extension segment; 19-a platform section; 20-a second diagonal extension segment; 21-a second lateral cover; 22-a second helical opening; 23-a second volute section; 24-a second volute extension; 25-a second tongue; 26-a first air outlet section; 27-a second arcuate segment; 28-a third diagonal extension segment; 29-centrifugal wind wheel.
Detailed Description
It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.
In addition, the terms "first," "second," etc. mentioned in the embodiments of the present disclosure are used merely to distinguish descriptions, and are not to be construed as indicating or implying relative importance.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 is a schematic structural diagram of an air duct structure 1 according to this embodiment. Fig. 2 is an enlarged view at X1 in fig. 1. Referring to fig. 1 and 2 in combination, the present embodiment discloses an air duct structure 1, which includes a volute cover 8 and a volute receptacle 9. The volute cover 8 and the volute seat 9 are detachably connected to form an inner air duct 2 and an outer air duct 3 which are communicated with each other. Wherein, inboard wind channel 2 is used for the air inlet, and outside wind channel 3 is used for the air-out.
It will be appreciated that the outer air duct 3 is disposed at the air duct opening of the inner air duct 2, and for convenience of description, in this embodiment, the air duct opening of the inner air duct 2 is defined as the first air duct opening 4, and the air duct opening of the outer air duct 3 is defined as the second air duct opening 5.
In order to prevent surging and reduce noise, in this embodiment, the air duct structure 1 has a first volute tongue 6 and a second volute tongue 7 connected between the first air duct opening 4 and the second air duct opening 5, wherein the first volute tongue 6 extends outwards from the first air duct opening 4, and the second volute tongue 7 is arranged towards the second air duct opening 5.
In this embodiment, the diameter of the air duct opening of the inner air duct 2 is smaller than the diameter of the air duct opening of the outer air duct 3. It will be appreciated that this arrangement allows the pressure of the air flow delivered from the inner test tunnel towards the outside to slowly expand, reducing the problem of volute tongue wind.
Fig. 3 is a schematic structural view of the volute cover 8 of the air duct structure 1 according to the embodiment. Referring to fig. 1 and 3 in combination, in the present embodiment, the side surface of the volute cover 8 has a spiral shape, and the volute cover 8 has a first side cover opening 10 and a first spiral opening 11, wherein the first side cover opening 10 is used for covering the volute receptacle 9, and the first spiral opening 11 is used for forming the second air duct opening 5 with the volute receptacle 9.
The volute cover 8 comprises a first volute section 12 and a first volute extension section 13 which are connected, wherein the first volute section 12 is used for being connected with the volute base 9 to form an inner air channel 2, and the first volute extension section 13 is used for being connected with the volute base 9 to form an outer air channel 3.
The first volute extension 13 has a larger diameter extending outward from the first volute section 12.
In this embodiment, the lower side of the first volute extension 13 is bent to form a first tongue 14 and a second tongue 7, and a second air outlet section 16 is formed between the second tongue 7 and the first spiral opening 11. Wherein the first tongue 14 extends outwardly from the first volute section 12 and the second tongue 7 extends towards the first spiral opening 11.
It should be noted that, the second air outlet section 16 is almost parallel to the air outlet direction of the outer air duct 3, and this structural design can facilitate the air duct structure 1 to be used for being in butt joint with the external straight air duct, reduce the impact to the straight air duct, and prevent shaking.
Fig. 4, 5 and 6 are enlarged views of X2 in fig. 3. Referring to fig. 4, in the present embodiment, the first tongue 14 includes a first arc-shaped section 17 and a first inclined extension section 18, wherein the first arc-shaped section 17 extends outwards from the first volute section 12, and the first inclined extension section 18 is inclined towards the first spiral opening 11.
The second volute tongue 7 comprises a connected platform section 19 and a second inclined extension section 20, wherein the platform section 19 is connected with the first inclined extension section 18, the platform section 19 is approximately horizontal, and the second inclined extension section 20 is obliquely arranged towards the first spiral opening 11.
Referring to fig. 4-6, in order to adapt to the air-out requirement and ensure better anti-surge and noise reduction effects, in the embodiment, the horizontal length a of the second air-out section 16 is not greater than the horizontal length B of the second volute tongue 7, and the horizontal length B of the second volute tongue 7 is not greater than the horizontal length C of the first tongue 14.
Wherein, the horizontal length refers to the length projected in the horizontal direction. Wherein, the horizontal length A of the second air outlet section 16 can be set to be 4 mm-10 mm; the horizontal length B of the second volute tongue 7 can be set to be 6 mm-15 mm; the horizontal length C of the first tongue 14 may be set to 8mm to 20mm.
In this embodiment, the height E of the first tongue 14 and the height F of the second tongue 7 may be set to be generally equal to each other, and may be set to be generally 4mm to 15mm. As an embodiment, the height E of the first tongue 14 and the height F of the second tongue 7 may each be set to 8mm.
Wherein, the height refers to the vertical height projected in the vertical direction. In addition, the "equality" in the present embodiment does not refer to the exact same dimension, and may have an error of less than 2%.
In this embodiment, the first oblique extension 18 forms an obtuse angle with the platform 19, the second oblique extension 20 forms an obtuse angle with the first air outlet 26, and the angle between the first oblique extension 18 and the platform 19 is greater than the angle between the second oblique extension 20 and the first air outlet 26.
Alternatively, the angle Φi between the first diagonal extension segment 18 and the platform segment 19 may be set to 90 ° to 160 °, and the angle Φii between the second diagonal extension segment 20 and the first air outlet segment 26 may be set to 90 ° to 135 °.
Fig. 7 is a schematic cross-sectional view of the air duct structure 1 according to the present embodiment. Fig. 8 is an enlarged view at X3 in fig. 7. Referring to fig. 7 and 8 in combination, in the present embodiment, the width of the first diagonally extending segment 18 gradually decreases from the first arc segment 17 to the platform segment 19, and the width of the second diagonally extending segment 20 gradually decreases from the platform segment 19 to the first air outlet segment 26, so that the structure can adapt to the substantially cylindrical shape of the outer air duct 3.
The width refers to the length in the lateral direction as shown in fig. 8.
It will be appreciated that in this embodiment, the second volute tongue 7 is completely disposed on the volute cover 8, and the maximum width b of the second volute tongue 7 is smaller than the maximum width a1 of the first tongue 14, and the width of the second volute tongue 7 may be 3/4-16/17 of the first tongue 14.
It should be noted that, in this embodiment, the first tongue 14 is disposed obliquely toward the volute receptacle 9 as a whole, where the oblique angle may be 2 ° to 5 °. The structure is suitable for the die stripping angle, and can realize noise reduction to the greatest extent.
Fig. 9 is a schematic structural view of the volute receptacle 9 of the air duct structure 1 according to the embodiment. Referring to fig. 9, in the present embodiment, the side surface of the volute receptacle 9 is also in a spiral shape, and the volute receptacle 9 has a second lateral cover 21 and a second spiral opening 22, wherein the second lateral cover 21 is used for covering the first lateral cover 10 of the volute cover 8, and the second spiral opening 22 is used for forming the second air duct opening 5 with the first spiral opening 11 of the volute cover 8.
In this embodiment, the volute cover 8 and the volute base 9 are engaged with each other, and can be fixed by screws or the like.
The volute receptacle 9 comprises a second volute section 23 and a second volute extension 24, wherein the second volute section 23 is configured to be connected with the first volute section 12 of the volute cover 8 to form the inner air channel 2, and the second volute extension 24 is configured to be connected with the first volute extension 13 of the volute cover 8 to form the outer air channel 3.
In the present embodiment, the second volute extension 24 has a larger diameter extending outwardly from the second volute 23.
In this embodiment, the lower side of the second volute extension 24 is bent to form a second tongue 25, and a first air outlet section 26 is formed between the second tongue 25 and the second spiral opening 22. Wherein the second tongue 25 extends outwardly from the second volute section 23.
It should be noted that, the first air outlet section 26 is almost parallel to the air outlet direction of the outer air duct 3, and this structural design can facilitate the air duct structure 1 to be used for being in butt joint with the external straight air duct, reduce the impact to the straight air duct, and prevent shaking.
Fig. 10, 11 and 12 are enlarged views of X4 in fig. 9. Referring to fig. 10-12, in this embodiment, the second tongue 25 includes a second arc-shaped section 27 and a third inclined extension section 28 connected to each other.
The second arcuate segment 27 extends outwardly from the second volute segment 23 and the second arcuate segment 27 is removably coupled to the first arcuate segment 17. The third inclined extending section 28 is inclined towards the second spiral opening 22, and the first inclined extending section 18 and the third inclined extending section 28 are detachably connected.
In order to adapt to the air-out requirement and ensure better anti-surge and noise reduction effects, in this embodiment, the horizontal length M of the second tongue 25 is equal to the horizontal length C of the first tongue 14, and the horizontal length N of the first air-out section 26 is equal to the sum of the horizontal length a of the second air-out section 16 and the horizontal length B of the second volute tongue 7.
As an embodiment, the horizontal length M of the second tongue 25 may be set to 8mm to 20mm, and the horizontal length of the first air outlet section 26 may be set to 10mm to 25mm.
In this embodiment, the height H of the second tongue 25 is equal to the height E of the first tongue 14, and may be generally set to 4mm to 15mm.
The third inclined extending section 28 and the second air outlet section 16 form an obtuse angle, and the included angle phi III between the third inclined extending section 28 and the second air outlet section 16 is equal to the included angle phi I between the first inclined extending section 18 and the platform section 19, and can be set to be 90-160 degrees.
With continued reference to fig. 7 and 8, in the present embodiment, the width of the third diagonally extending segment 28 gradually decreases from the second arc segment 27 to the second air outlet segment 16 to adapt to the substantially cylindrical shape of the outer air duct 3.
In the present embodiment, the maximum width a2 of the second tongue 25 is equal to the maximum width a1 of the first tongue 14 minus the maximum width b of the second volute tongue 7.
It will be appreciated that the first tongue 14 and the second tongue 25 are joined to form the first volute tongue 6. This structure can make the second volute tongue 7 set up roughly in the middle part of first volute tongue 6, guarantees the stability of structure.
In this embodiment, the maximum width a of the first volute tongue 6 is equal to the width of the inner air duct 2. The maximum width b of the second volute tongue 7 and the maximum width a of the first volute tongue 6 satisfy the following relationship:
a/2≤b≤a。
it should be noted that, because the mold must have a certain mold-stripping angle, the volute tongue angle of the volute cover 8 can be kept consistent with the direction of the angle of the wind wheel blade, but the volute tongue angle on the volute base 9 can only be opposite to the direction of the angle of the wind wheel, the volute cover 8 volute tongue angle has a disadvantage to noise, and the volute base 9 volute tongue angle has a disadvantage to noise. Therefore, in the present application, the width of the volute cover 8 is made as wide as possible, so that the angle of the volute tongue of the whole air duct is kept as consistent as possible with the direction of the angle of the wind wheel, and the noise reduction effect is ensured to the maximum extent.
It can be understood that in the present embodiment, the horizontal length of the first volute tongue 6 is equal to the horizontal length C of the first tongue 14 and the horizontal length M of the second tongue 25. The height of the first volute tongue 6 is equal to the height F of the first tongue 14 and the height H of the second tongue 25.
Fig. 13 is a schematic view of a part of the structure of an air conditioner according to the present embodiment. Referring to fig. 13, based on the above-mentioned air duct structure 1, the present embodiment also discloses an air conditioner, which includes a centrifugal wind wheel 29 and an air duct structure 1, wherein the centrifugal wind wheel 29 is installed in the inner air duct 2.
It can be understood that in the air duct structure 1 disclosed in this embodiment, the volute cover 8 and the volute seat 9 are detachably connected to form the first volute tongue 6 and the second volute tongue 7, where the first volute tongue 6 extends from the air duct opening of the inner air duct toward the air duct opening of the outer air duct 3, the second volute tongue 7 extends toward the air duct opening of the outer air duct 3, so that the air flow pressure conveyed from the inner air duct toward the outer side can be slowly expanded, the problem of volute air vortex is reduced, and the maximum width b of the second volute tongue 7 is 1/2-1 (a/2 is less than or equal to b is less than or equal to a) of the maximum width a of the first volute tongue 6; the horizontal length of the second air outlet section 16 is smaller than or equal to the horizontal length of the second volute tongue 7, and the horizontal length of the second volute tongue 7 is smaller than or equal to the horizontal length of the first volute tongue 6 (A=M is smaller than or equal to B is smaller than or equal to C); the height of the first volute tongue 6 is equal to the height of the second volute tongue 7 (h=e=f); the degree of the obtuse included angle formed between the inclined extending section of the first volute tongue 6 and the platform section 19 formed by the first inclined extending section 18 and the third inclined extending section 28 is larger than the degree of the obtuse included angle formed between the second inclined extending section 20 and the first air outlet section 26 (phiII is smaller than or equal to phiIII=phiI), so that noise can be reduced to the greatest extent, and user experience is improved.
The air conditioner provided by the disclosure adopts the air duct structure 1 provided by the disclosure, has less volute tongue wind phenomenon and low noise, and can effectively provide use experience.
The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present disclosure.
Claims (9)
1. The utility model provides an air duct structure which is characterized in that, including spiral case lid (8) and spiral case seat (9), be provided with first tongue (14) and second spiral case tongue (7) that link to each other on spiral case lid (8), be provided with second tongue (25) on spiral case seat (9), spiral case lid (8) and spiral case seat (9) detachable connection to form inside wind channel (2) and outside wind channel (3) of intercommunication each other, first tongue (14) with second tongue (25) are connected and are formed first spiral case tongue (6);
the first tongue body (14) and the second tongue body (25) extend outwards from the air duct opening of the inner air duct (2), the second tongue body (7) is arranged towards the air duct opening of the outer air duct (3), a first air outlet section (26) is formed between the second tongue body (25) and the air duct opening of the outer air duct (3), and a second air outlet section (16) is formed between the second tongue body (7) and the air duct opening of the outer air duct (3);
the area of the air duct opening of the inner air duct (2) is smaller than that of the air duct opening of the outer air duct (3), and the horizontal length of the first air outlet section (26) is equal to the sum of the horizontal length of the second air outlet section (16) and the horizontal length of the second volute tongue (7);
the maximum width of the first volute tongue (6) is equal to the width of the inner air duct (2), and the maximum width of the first volute tongue (6) and the maximum width of the second volute tongue (7) meet the following relation:
a/2≤b≤a；
wherein a is the maximum width of the first volute tongue (6); b is the maximum width of the second volute tongue (7);
the first tongue body (14) comprises a first arc-shaped section (17) and a first oblique extension section (18) which are connected, the second volute tongue (7) comprises a platform section (19) and a second oblique extension section (20) which are connected, the platform section (19) is connected with the first oblique extension section (18), and the second tongue body (25) comprises a second arc-shaped section (27) and a third oblique extension section (28) which are connected;
the first arc-shaped section (17) and the second arc-shaped section (27) are respectively arranged to extend outwards from the air duct opening of the inner air duct (2), the first arc-shaped section (17) and the second arc-shaped section (27) are detachably connected, the first oblique extension section (18) and the third oblique extension section (28) are detachably connected,
the first oblique extension section (18), the second oblique extension section (20) and the third oblique extension section (28) are obliquely arranged towards the air duct opening of the outer air duct (3).
2. The air duct structure according to claim 1, characterized in that the horizontal length of the second air outlet section (16) is not greater than the horizontal length of the second volute tongue (7), and the horizontal length of the second volute tongue (7) is not greater than the horizontal length of the first volute tongue (6).
3. The air duct structure according to claim 2, characterized in that the horizontal length of the second air outlet section (16) is 4 mm-10 mm; the horizontal length of the second volute tongue (7) is 6 mm-15 mm; the horizontal length of the first tongue body (14), the horizontal length of the second tongue body (25) and the horizontal length of the first volute tongue (6) are 8-20 mm; the horizontal length of the first air outlet section (26) is 10 mm-25 mm.
4. The air duct structure according to claim 1, wherein the height of the first tongue (14), the height of the second tongue (25), the height of the first volute tongue (6) and the height of the second volute tongue (7) are set to be 4 mm-15 mm.
5. The air duct structure according to claim 4, wherein the height of the first tongue (14), the height of the second tongue (25), the height of the first volute tongue (6) and the height of the second volute tongue (7) are set to 8mm.
6. The duct structure of claim 1, wherein an obtuse angle is formed between the first oblique extension (18) and the platform section (19), an obtuse angle is formed between the second oblique extension (20) and the first air outlet section (26), an obtuse angle is formed between the third oblique extension (28) and the second air outlet section (16), and an angle between the first oblique extension (18) and the platform section (19) is greater than an angle between the second oblique extension (20) and the first air outlet section (26).
7. The air duct structure according to claim 6, wherein an included angle between the first oblique extension section (18) and the platform section (19) and an included angle between the first oblique extension section (18) and the platform section (19) are both 90 ° -160 °, and an included angle between the second oblique extension section (20) and the first air outlet section (26) is 90 ° -135 °.
8. The duct structure of claim 1, wherein the width of the first diagonal extension segment (18) decreases gradually from the first arcuate segment (17) to the platform segment (19), the width of the second diagonal extension segment (20) decreases gradually from the platform segment (19) to the first air outlet segment (26), and the width of the third diagonal extension segment (28) decreases gradually from the second arcuate segment (27) to the second air outlet segment (16).
9. An air conditioner characterized by comprising a centrifugal wind wheel (29) and an air duct structure (1) according to any of claims 1-8, said centrifugal wind wheel (29) being mounted in said inner air duct (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245972.1A CN109059233B (en) | 2018-10-24 | 2018-10-24 | Air duct structure and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245972.1A CN109059233B (en) | 2018-10-24 | 2018-10-24 | Air duct structure and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109059233A CN109059233A (en) | 2018-12-21 |
| CN109059233B true CN109059233B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245972.1A Active CN109059233B (en) | 2018-10-24 | 2018-10-24 | Air duct structure and air conditioner |
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| CN112013506B (en) * | 2019-05-31 | 2022-02-25 | 青岛海尔空调电子有限公司 | Communication detection method and device and air conditioner |
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| CN109059233A (en) | 2018-12-21 |
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