EP3348840A1 - Volute fan assembly structure and floor-standing air conditioner - Google Patents
Volute fan assembly structure and floor-standing air conditioner Download PDFInfo
- Publication number
- EP3348840A1 EP3348840A1 EP16843633.5A EP16843633A EP3348840A1 EP 3348840 A1 EP3348840 A1 EP 3348840A1 EP 16843633 A EP16843633 A EP 16843633A EP 3348840 A1 EP3348840 A1 EP 3348840A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- volute
- fan
- volute fan
- air outlet
- 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
Links
- 238000007664 blowing Methods 0.000 claims description 35
- 230000002093 peripheral effect Effects 0.000 description 37
- 238000013016 damping Methods 0.000 description 25
- 238000007789 sealing Methods 0.000 description 21
- 238000004378 air conditioning Methods 0.000 description 16
- 230000002457 bidirectional effect Effects 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4246—Fan casings comprising more than one outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0025—Cross-flow or tangential fans
Definitions
- the present invention relates to the field of an air blowing mechanism, and specifically relates to a volute fan combination structure and a vertical air conditioner.
- the air conditioning device in the market may sometimes be provided with two volute fans to blow towards two opposite directions, when there is a demand for bidirectional blowing.
- a volute fan upon application on a very large air conditioning device, for example a vertical air conditioner, there may be a problem of insufficient air volume.
- the volume of the volute fan may also be increased along therewith, so that it is further necessary to enlarge an overall volume of the vertical air conditioner, in particular to enlarge a width and/or thickness of the vertical air conditioner, and to increase a transversely occupied space by the vertical air conditioner.
- the present invention provides a volute fan combination structure capable of reducing the influence on the air blowing of an intermediate volute fan by a volute of the volute fans at both sides in an air blower device having multiple volute fans.
- the present invention uses the following technical solution:
- a volute fan combination structure comprises: a mounting plate; at least two adjacent volute fans mounted on said mounting plate; wherein one volute fan of the two adjacent volute fans has an intermediate inclined air outlet located between the two adjacent volute fans, said intermediate inclined air outlet extending along a direction away from said mounting plate.
- the inner surface adjacent to said mounting plate of said intermediate inclined air outlet representing a slope or camber, an extension of said slope or an extension of a tangent plane of said camber not intersecting with a volute of another volute fan adjacent to said intermediate inclined air outlet.
- volute fan combination structure there comprise three volute fans having a third volute fan, a second volute fan and a first volute fan provided in an upward sequence; said second volute fan comprising second volute fan air outlets blowing air upwards and/ or blowing air downwards, said second volute fan air outlets extending along a direction away from said mounting plate.
- the inner surface adjacent to said mounting plate of said second volute fan air outlets representing a slope or camber, an extension of a corresponding slope or an extension of a tangent plane of an camber not intersecting with a volute of the first volute fan or the third volute fan opposite to said second volute fan said air outlets
- said first volute fan comprising a first volute fan air outlet blowing air upwards; and said third volute fan comprising a third volute fan air outlet blowing air downwards.
- said second volute fan air outlet comprising a second volute fan first air outlet blowing air upwards and a second volute fan second air outlet (29) blowing air downwards.
- the inner surface adjacent to said mounting plate of said second volute fan first air outlet representing a slope or camber, an extension of said slope or an extension of a tangent plane of the camber not intersecting with a volute of the first volute fan; and the inner surface adjacent to said mounting plate of said second volute fan second air outlet representing a slope or camber, an extension of said slope or an extension of a tangent plane of the camber not intersecting with a volute of the third volute fan.
- a first deflector parallel to said mounting plate provided at least on a wall away from said mounting plate of said second volute fan first air outlet; and/or a second deflector parallel to said mounting plate provided at least on a wall away from said mounting plate of second volute fan second air outlet.
- said first deflector comprising a sleeve extending upwards
- said second deflector comprising a sleeve extending downwards.
- said second volute fan is located forward of said first volute fan and said third volute fan along a front-and-rear direction.
- said mounting plate is provided with a first fan mounting portion, a second fan mounting portion and a third volute fan mounting portion for respectively mounting the first volute fan, the second volute fan and the third volute fan correspondingly, and wherein said second fan mounting portion is disposed such as to project towards the front of said mounting plate and forward of said first fan mounting portion and said third fan mounting portion.
- Another object of the present invention is to provide a vertical air conditioner, which specifically uses the following solution:
- a vertical air conditioner comprises a housing provided with a top air outlet located at a top thereof and a bottom air outlet located at a bottom thereof; a main body air duct provided within the housing, said main body air duct respectively communicating with said top air outlet and said bottom air outlet, and said volute fan combination structure according to claim 1, said volute fan combination structure is provided within said housing and blows air towards said top air outlet and/or said bottom air outlet through said main body air duct.
- the definition of the direction is shown in Figures 1 , 2 , wherein the front-and-rear direction is defined to be along a direction perpendicular to the mounting plate 4, in which the front panel 51 is located at the front, and the rear panel is located at the rear; the longitudinal direction is defined to be along a direction parallel to the mounting plate, in which the top air outlet 53 is located above, and the lower air outlet 54 is located below.
- the latitudinal direction is defined to be along a direction parallel to the mounting plate and perpendicular to the longitudinal direction, wherein the left hand direction in Figure 1 is a left side, and the right hand direction is a right side.
- the side perpendicular to a principal plane direction and proximate to an observer is a left side, and the side opposite to the left side is a right side.
- the present application designs a volute fan combination structure of an air conditioning device, which comprises a mounting plate 4 and a plurality of volute fans.
- the air conditioning device specifically refers to an electrical appliance device such as a vertical air conditioner, a fan and an air filter, which has an air blowing function and is capable of adjusting indoor air parameters.
- the air conditioning device has a housing 5, above which a top air outlet 53 is provided preferably at the top; below which a bottom air outlet 54 is provided preferably on a seat at the bottom of the housing 5.
- the housing comprises a front panel 51 and a rear panel 55, between which a hollow chamber is enclosed.
- the hollow chamber is internally provided with a volute fan combination structure, which mainly consists of a mounting plate 4 and a plurality of volute fans. Its specific structure will be described in detail later.
- the volute fan combination structure is arranged within said hollow chamber along a longitudinal direction, and the volute is provided in front of the mounting plate 4 and opposite to a position of the front panel 51.
- the mounting plate 4 divides the hollow chamber into two independent parts, and a space between a rear side of the mounting plate 4 and the rear panel 55 is formed with an air intake duct 57 which communicates with an air intake grill located on the rear panel 55.
- the air intake duct 57 is further internally provided with a heat exchange mechanism such as an evaporator.
- the mounting plate 4 is provided with a mounting plate air inlet, a position of which is opposite to that of the volute air inlet.
- the air outlet of the volute communicates with the main body air duct 56.
- the volute fan combination structure of the present application comprises a mounting plate and at least three volute fans mounted on a front side face of the mounting plate, the at least three volute fans comprises an upper volute fan located above and provided with an air outlet blowing air upwards, and a lower volute fan located below and provided with an air outlet blowing air downwards, and further comprises at least one intermediate volute fan between the upper volute fan and the lower volute fan.
- the at least one intermediate fan comprises at least one bidirectional volute fan having a bidirectional air outlet capable of blowing air upwards and downwards at the same time, and said bidirectional air outlet and the volute fan adjacent to said bidirectional volute fan are staggeringly disposed in a front-and-rear direction.
- the at least one intermediate volute fan may be a combination of a bidirectional volute fan and a unidirectionally blowing volute fan, and may also be fully bidirectional volute fans.
- the specific manner that the bidirectional air blower and the volute fan adjacent to said bidirectional volute fan are staggered in a front-and-rear direction may use staggering the volute fans in a front-and-rear direction, providing the bidirectional air outlet to blow air inclinedly, as well as a combination of the aforementioned two manners.
- the specific structure may be described in detail below.
- the volute fan combination structure comprises a mounting plate 4, as well as three volute fans (hereinafter referred to as fans for short).
- the three volute fans comprise a first volute fan 1 provided at an upper side of the mounting plate 4, a third volute fan 3 located a lower side of the mounting plate 4, as well as a second volute fan 2 provided on the mounting plate 4 and located between the first volute fan 1 and the third volute fan 3.
- the first volute fan 1 has a first volute fan air outlet 18 blowing air upwards; the third volute fan is provided with a third volute fan air outlet 39 blowing air downwards; the second volute fan has two air outlets, in which the second volute fan first air outlet 28 is provided to blow air upwards, and the second volute fan second air outlet 29 is provided to blow air downwards.
- the mounting plate in the present embodiment is provided in a longitudinal direction, and the three volute fans are also arranged in a longitudinal direction, the technical solution of the present application should not be limited in a mounting plate structure provided in a longitudinal direction. It is both possible that the mounting plate uses a horizontal arrangement or an inclined arrangement.
- the longitudinal, latitudinal and front-and-rear definitions mentioned in the present text are all relative directions with respect to the mounting plate.
- the second volute fan 2 is disposed between the first volute fan 1 and the third volute fan 3, and the air outlet is provided in such a manner as to blow air longitudinally. If three fans are mounted on the same plane according to a conventional manner, the volute of the first volute fan 1 and the volute of the third volute fan 3 may form a barrier for the air blowing of the second volute fan, which impedes air blown by the second volute fan 2 from smoothly entering the main body air duct 56. Accordingly, the three fans are provided to present a staggered structure in space, such that the second volute fan first air outlet 28 and the second volute fan second air outlet 29 are staggered in space from positions of the first volute fan 1 and the third volute fan 3.
- the influence on the air blowing of the second volute fan 2 by the first volute fan 1 and the third volute fan 3 is reduced to minimum as much as possible, for example the three fans are staggeringly disposed in a front-and-rear direction and/or a latitudinal direction.
- a mounting position of the second volute fan 2 on the mounting plate 4 is disposed at a front side of a mounting position of the third and third volute fans, i.e. the second volute fan 2 is disposed at a position that is closer to the main body air duct 56 than a position at which the first volute fan 1 and the third volute fan 3 are disposed, such that the air blown by the second volute fan 2 in a longitudinal direction may at least partially avoid disturbance of a volute of the first volute fan 1 and a volute of the third volute fan 3, so that it is conveyed through the main body air duct 56 more smoothly.
- a mounting position of the second volute fan 2 on the mounting plate 4 is disposed at a front side of mounting positions of the second and third volute fans by changing a shape of the mounting plate 4.
- the mounting plate has a first fan mounting portion 41, a second fan mounting portion 42 and a third fan mounting portion 43, in which steps are formed between the second fan mounting portion 42 and the first fan mounting portion 41/third fan mounting portion 43, such that the second fan mounting portion 42 projects in a forward direction towards the front panel 51 relative to the first fan mounting portion 41 and the third fan mounting portion 43.
- a mounting position of the second volute fan 2 on the mounting plate 4 is located at a front side of mounting positions of the first and third volute fans when the three fans are mounted on the mounting plate 4.
- the advantage of staggered arrangement back and forth is only to increase a thickness in a front-and-rear direction for certain extent, without increasing a thickness of the volute fan assembly in a latitudinal direction, so that there is a very slight influence on the overall size of the air conditioning device.
- the rear walls of the second volute fan first air outlet 28 and the second volute fan second air outlet 29 have an inner surface which may present a plane parallel to the mounting plate, and the extension of the plane does not intersect with the volutes of the first volute fan 1 and the third volute fan 3 respectively. In this way, it may allow that the air blown by the second volute fan 2 may not be blown onto the volutes of the first volute fan 1 and the third volute fan 3, and the influence on the air blowing of the second volute fan 2 by the first volute fan 1 and the third volute fan 3 is reduced to minimum.
- the three fans are staggered in a latitudinal direction (not shown in the drawings), i.e. the second volute fan 2 is arranged at a left side or a right side of the first volute fan 1 and the third volute fan 3, which may also effectuate reducing disturbance of the air blowing of the second volute fan by the first volute fan 1 and the third volute fan 3.
- such manner may significantly increase a width of the volute fan assembly in a latitudinal direction, which is unfavorable for the overall layout of the air conditioning device.
- the second volute fan first air outlet 28 and the second volute fan second air outlet 29 of the second volute fan 2 may also be inclinedly disposed relative to the volute of the second volute fan 2.
- the volute of the second volute fan 2 is mounted in such a manner as to be substantially parallel to a plane of the second volute fan mounting portion 42 of the mounting plate 4.
- the volute plane of the second volute fan 2 extends substantially along a longitudinal direction.
- the second volute fan first air outlet 28 and the second volute fan second air outlet 29 are disposed such as to extend in a direction from the mounting plate 4 to the front panel 51 (i.e.
- the second volute fan first air outlet 28 is disposed to blow air in a forwardly upward direction
- the second volute fan second air outlet 29 is disposed to blow air in a forwardly downward direction.
- the second volute fan first air outlet 28 comprises an inner surface 282 of a rear wall of the second volute fan first air outlet proximate to the second fan mounting portion 42 and an inner surface 281 of a front wall of the second volute fan first air outlet proximate to the front panel 51, the inner surface 281 of a front wall of the second volute fan first air outlet may present a slope or an camber, and the extension 2811 of the tangent of the slope or camber and the plane of the mounting plate 4 present a first inclination ⁇ 1; the inner surface 282 of a rear wall of the second volute fan first air outlet may present a slope or an camber, and the extension 2821 of the slope or camber and the plane of the mounting plate 4 present a second inclination ⁇ 2.
- the first inclination ⁇ 1 may be the same as or different from the second inclination ⁇ 2 in size.
- the second volute fan second air outlet 29 has an inner surface 292 of a rear wall of the second volute fan second air outlet proximate to the second fan mounting portion 42 and an inner surface 291 of a front wall of the second volute fan second air outlet proximate to the front panel 51, the inner surface 291 of a front wall of the second volute fan first air outlet may present a slope or an camber, and the tangent direction 2911 of the slope or camber and the plane of the mounting plate 4 present a third inclination ⁇ 3; the inner surface 292 of a rear wall of the second volute fan second air outlet may present a slope or an camber, and the tangent direction 2921 of the camber and the plane of the mounting plate 4 present a fourth inclination ⁇ 4.
- the third inclination ⁇ 3 may be the same as or different from the fourth inclination ⁇ 4 in size.
- the extension of the slope or the extension 2821 of the tangent of the camber of the inner surface 282 of the rear wall of the second volute fan first air outlet does not intersect with the volute of the first volute fan 1, as shown in Figure 4 .
- the extension of the slope or the extension 2921 of the tangent of the camber of the inner surface 292 of the rear wall of the second volute fan second air outlet does not intersect with the volute of the third volute fan 1 (not shown in the drawings).
- the mounting plate has a first fan mounting portion 41, a second fan mounting portion 42 and a third volute fan mounting portion 43, in which steps are formed between the second volute fan mounting portion 42 and the first fan mounting portion 41/third fan mounting portion 43, such that the second fan mounting portion 42 projects in a forward direction towards the front panel 51 relative to the first fan mounting portion 41 and the third fan mounting portion 43.
- the second volute fan first air outlet 28 and the second volute fan second air outlet 29 are provided to be disposed inclinedly relative to the volute, i.e. extending in a direction from the mounting plate 4 to the front panel 51 (i.e.
- an extension of the slope or an extension 2821 of the tangent of the camber of the inner surface 282 of the rear wall of the second volute fan first air outlet does not intersect with the volute of the first volute fan 1, as shown in Figure 4 .
- An extension of the slope or an extension 2921 of the tangent of the camber of the inner surface 292 of the rear wall of the second volute fan second air outlet does not intersect with the volute of the third volute fan 3.
- Such combination of staggered manners may reduce an increase in a thickness (a front-and-rear direction) of the volute fan combination structure resulting from staggering in a front-and-rear direction, and at the same time may also avoid that the inclined angles of the second volute fan first air outlet 28 and the second volute fan second air outlet 29 relative to the volute is so large as to affect the air blowing of the volute fan, ensure that there is no significant increase of size in both a thickness (a front-and-rear direction) and width (a latitudinal direction) of the volute fan combination structure, and facilitate an optimized design of the overall structure of the air conditioning device.
- the disturbance of the air blowing of the second volute fan by of the first volute fan and the third volute fan is also very low, such that the air blown by the three fans is capable of moving smoothly within the main body air duct 56.
- a deflector may be provided at a second volute fan first air outlet 28 and/or second volute fan second air outlet 29 inclinedly disposed at the second volute fan.
- an upper deflector 280 is provided at the second volute fan first air outlet 28, and a lower deflector 290 is provided at the second volute fan second air outlet 29.
- the upper deflector 280 is at least disposed at a front wall of the second volute fan first air outlet 28, i.e. at a position proximate to the front panel 51; the lower deflector 290 is at least disposed at a front wall of the second volute fan second air outlet 29, i.e. at a position proximate to the front panel 51.
- the upper deflector 280 and the lower deflector 290 extend substantially in such a manner as to be parallel to the mounting plate 4 and/or front panel 51, i.e. along a longitudinal direction.
- the upper deflector 280 and the lower deflector 290 have a structure of a sleeve which is provided at the second volute fan first air outlet 28 and the second volute fan second air outlet 29, and which extends along a substantially longitudinal direction.
- air blown by the upper air outlet 28 and the lower air outlet 29 may enter the main body air duct 56 in a manner of a heading substantially parallel to the main body air duct 56, to reduce disturbance of air stream within the main body air duct 56 by reflection airflow of the front panel 51, so as to make a more smooth air flow within the main body air duct 56, and reduce the energy loss.
- one of the top air outlet 53 or the bottom air outlet 54 is closed, as shown in Figure 3B , for instance the bottom air outlet 54 is closed.
- the air blown by the lower air outlet 29 which is inclined forwardly downwards may cause a barrier for the lower reciprocal air, so that the reciprocal air cannot smoothly move upwards.
- the upper deflector 280 in a way such that the effect produced by the upper deflector 280 is the same as the effect produced by the lower deflector 290 when the top air outlet 53 is closed.
- the mounting plate has a first fan mounting portion 41, a second fan mounting portion 42 and a third fan mounting portion 43, which are respectively provided with a first fan mounting face, a second fan mounting face and a third fan mounting face (not shown in the drawings).
- the second fan mounting face is disposed to project in a direction towards the front panel relative to the first fan mounting face and the third fan mounting face.
- An enclosure provided at an edge of the first fan mounting face and the third fan mounting face may reinforce the overall strength of the mounting plate, and at the same time allow that the first fan mounting portion 41 and the third fan mounting portion 43 form a depression, as shown in Figure 8 .
- the first fan mounting face, the second fan mounting face and the third fan mounting face are respectively formed with a first mounting plate air inlet 411, a second mounting plate air inlet 421 and a third mounting plate air inlet 431, as shown in Figure 8 .
- the volute of the fan consists of two halves, which possess substantially the same thickness. Preferably, the two halves are formed by sectioning the volute from a centerline perpendicular to an axis of the volute, so that such configuration facilitates the manufacture of halves.
- the first volute fan 1 includes a first fan rear half 15, a first fan front half 13, a first motor 11, and a first impeller 14.
- the first fan rear half 15 and the first fan front half 13 constitute the first volute, the first volute fan rear half 15 is opened with a first volute air inlet, and the first motor 11 and the first impeller 14 are mounted on the first fan front half 13.
- the second volute fan 2 includes a second fan rear half 25, a second fan front half 23, a second motor 21, and a second impeller 24.
- the second fan rear half 25 and the second fan front half 23 constitute the second volute, the second fan rear half 25 is opened with a second volute air inlet, and the second motor 21 and the second impeller 24 are mounted on the second fan front half 23.
- the third volute fan 3 includes a third fan rear half 35, a third fan front half 33, a third motor 31, and a third impeller 34.
- the third fan rear half 35 and the third fan front half 33 constitute the third volute, the third fan rear half 35 is opened with a third volute air inlet, and the third motor 31 and the third impeller 34 are mounted on the third fan front half 33, specifically as shown in Figure 9 .
- the first volute fan 1, the second volute fan 2, and the third volute fan 3 are respectively mounted to the first fan mounting portion 41, the second fan mounting portion 42 and the third fan mounting portion 43, the first fan rear half 15, the second fan rear half 25 and the third fan rear half 35 are respectively fixed to a first fan mounting face, a second fan mounting face and a third fan mounting face of the first fan mounting portion 41, the second fan mounting portion 42 and the third fan mounting portion 43 by means of a connection piece which may be a screw, a bolt, a rivet and the like. As shown in Figure 8B , it uses a manner of a screw 91.
- the first volute air inlet, the second volute air inlet and the third volute air inlet are respectively opposite to the first mounting plate air inlet 411, the second mounting plate air inlet 421 and the third mounting plate air inlet 431.
- the first fan mounting portion 41 and the third fan mounting portion 43 form a depression
- said first fan rear half 15 and said third fan rear half 35 are embedded into said depression
- the fan rear half 25 is located on the second fan mounting portion 42 by projecting out of the mounting plate 4.
- the first fan front half 13, the second fan front half 23 and the third fan front half 33 after the corresponding motor and impeller are mounted, are integrally connected to the first fan rear half 15, the second fan rear half 25 and the third fan rear half 35 respectively, such as to further constitute the whole volute fan combination structure, as shown in Figure 9 .
- the motor of the present application is mounted on a volute, and the motor and the impeller may be removable together with the volute, without requiring to remove the mounting plate, thereby improving the convenience and the maintainability in the whole assembly.
- the specific structure of the volute motor will be described in detail later.
- the mounting structure of the volute motor is described in detail by taking the first motor 1 and the mounting plate 4 for example, as shown in Figures 13-18 .
- the axial direction is defined to be a direction parallel to an axis of the motor
- the radial direction is defined to be a direction perpendicular to an axis of the motor
- the circumferential direction is defined to be a direction rotating about an axis of the motor.
- the term "side” is concerned relative to an axis direction of the motor.
- the first half 13 a first fan front half
- the second half 15 a first fan rear half
- the impeller 14 is located between the first half 13 and the second half 15.
- a distance from a peripheral wall of the volute proximate to a centerline of the volute in a direction of said axis to said axis is greater than a distance from a peripheral wall of the volute at both sides in the axis to said axis 111, and the distance is a distance from a centerline of the peripheral wall to the axis 144 of the impeller, with a different of H.
- a distance from an outer wall of a peripheral wall of the volute proximate to a centerline 139 of the volute in a direction of said axis 111 to said axis 111 is greater than a distance from an outer wall of a peripheral wall of the volute at both sides in the axis 111 to said axis 111, with a different of HI (not shown in the drawings).
- the outer wall of a peripheral wall of the volute has a cross section which may be an arc, a trapezoid, a trimmed arc, a triangle, or other polygons.
- a distance from an outer wall of a peripheral wall of the volute proximate to a centerline 139 of the volute in a direction of said axis 111 to said axis 111 is greater than a distance from an outer wall of a peripheral wall of the volute at both sides in the axis 111 to said axis 111, with a different of HI (not shown in the drawings).
- the outer wall of a peripheral wall of the volute has a cross section which may be an arc, a trapezoid, a trimmed arc, a triangle, or other polygons.
- an outer wall of a peripheral wall of the volute By designing an outer wall of a peripheral wall of the volute to be an intermediately projecting structure, it may be adapted to different vertical air conditioner structures for example having a curved housing. Further, as the peripheral wall of the volute usually has a uniform thickness, the projection of the outer wall of the peripheral wall may allow that the inner wall of the peripheral wall also presents a projecting structure. By comparing the volutes of which the peripheral wall is perpendicular to the sidewall, it is possible to increase a volume inside the volute, and improve the air sending capability of the volute fan.
- the volute may be provided in a divided structure.
- the volute comprises a first half 13 and a second half 15, the first half 13 comprises a first half peripheral wall 131 and a first half sidewall 132, the second half comprises a second half peripheral wall 151 and a second half sidewall 152, and the first half peripheral wall 131 and the second half peripheral wall 151 are bent in such a manner as to surround a periphery of the impeller 14.
- the first half peripheral wall 131 comprises a fixed end connected to an edge portion of the first half sidewall 132 and a first connection end away from the first half sidewall 132.
- the second half peripheral wall 151 comprises a fixed end connected to an edge portion of the second half sidewall 152 and a second connection end away from the second half sidewall 152.
- the first connection end 1311 of the first half peripheral wall 131 is connected to the second connection end 1511 of the second half peripheral wall 151, so that an accommodating cavity is formed inside the first half 13 and the second half 15 for accommodating the impeller 14, and formed in a cylindrical shape with a radius increasing along a rotation direction of the impeller 14 relative to the axis 111 of the motor.
- the motor 11 of the volute motor in the present embodiment comprises a motor main body 117 and a rotary shaft 112.
- the impeller 14 which is mounted within the accommodating cavity, presents a cylindrical shape formed in a way such that a plurality of blades 141 elongately formed in an axial direction of the axis 111 of the motor present a radiating shape and are configured at specified gaps.
- One end of the blades 141 is mounted to an outer edge portion of a rotary circular plate 142 in a substantially circular shape, and the other end of the blades 141 is mounted to a support ring 143 in an annular shape and internally formed with an impeller air inlet.
- the rotary circular plate 142 is centrally fixed at the rotary shaft 112 of the motor, and under the drive of the motor 11, the impeller 14 rotates with the rotation shaft 112 as a center.
- the first half 13 is provided with a motor mounting port 133, adjacent to which the rotary circular plate 142 of the impeller is disposed.
- the rotary shaft 112 of the motor 11 passes through the motor mounting port and is connected to the rotary circular plate 142 of the impeller 14, such as to drive rotation of the rotary circular plate 142.
- the second half 15 is provided with a volute air inlet 153 which corresponds to the impeller air inlet in position for guiding air towards inside the impeller 14.
- the motor main body 117 is supported by the first half 13.
- a first damping means is provided between the motor main body 117 and the first half 13, and the structure and the specific mounting manner of the first damping means will be described in detail as follows.
- the volute is usually made from a plastic material with poor overall strength
- a support disk 12 which is made from a metal material.
- the support disk 12 is fixed on the first half 13, and preferably fixed on an outer wall of the first half sidewall 132 of the first half 13, and the motor main body 117 is fixed on the support disk 12.
- the motor main body 117 is fixed on a lateral face of the support disk 12 away from the first half 13.
- the first damping means may be disposed between the support disk 12 and the motor main body 117.
- the outer wall of the peripheral wall of the motor main body 117 is provided with a flange 133, which is fixed to the support disk 12, and the first damping means is disposed between the flange 133 and the support disk 12.
- the first damping means is preferably a first damping washer disposed between the flange 133 and the support disk 12.
- the first damping washer 114 is provided in a columnar shape, the outer periphery of the first damping washer 114 in a columnar shape is provided with a socket, and the flange 133 which is sheet-like is inserted into inside the first damping washer 114 from said socket.
- the first damping washer 114 is provided with a through hole communicating with a mounting hole of the flange 133.
- the connection piece such as a screw and a bolt after passing through a through hole of the first damping washer 114 and a mounting hole of the flange 133 is connected to the support disk 12 such as to be fix the motor main body 117.
- the first damping washer 113 preferably uses a rubber support. When a support disc 12 is not provided, the motor 11 may also be directly connected to the first half 13 through the aforementioned damping means in a manner of replacing the support disc 12 by the first half 13.
- the first half periphery 131 extends from a fixed end to a first connection end 1311 in a radial direction towards a direction away from the axis 111 of the motor
- the second half periphery 151 extends from a fixed end to a second connection end 1511 in a radial direction towards a direction away from the axis 111 of the motor.
- the connection of the first connection end 1311 of the first half peripheral wall 131 and the second connection end 1511 of the second half peripheral wall 151 is proximate to the centerline 139 of the volute perpendicular to the axis 111 of the motor, or overlaps with the centerline 139 of the volute perpendicular to the axis 111 of the motor.
- a sealing structure may be provided at the connection of the half 13 and the second half 15.
- the sealing structure comprises a rib provided on one of the first connection end 1311 of the first half peripheral wall 131 and the second connection end 1511 of the second half peripheral wall 151 and a groove provided on the other thereof.
- the first connection end of the first half peripheral wall 131 is provided with a rib 1312 extending towards the second half 15, and the second half peripheral wall 151 is provided with a groove 1512 corresponding to the rib 1312.
- the rib 1312 When the first half 13 is connected to the second half 15, the rib 1312 is embedded into the groove 1512, so that it is possible to improve the sealing property of the half and avoid air leakage of the peripheral wall of the volute to reduce the efficiency of the volute fan.
- the structure of the rib 1312 and the groove 1512 may be provided in a single manner and may also be provided in a plural manner.
- the sealing structure may also use a form of a sealing ring by providing a flange on one of the first half 13 and the second half 15, and providing a groove on the other thereof. The flange abuts against the groove and presses the sealing ring within the groove to effectuate the sealing.
- the sealing ring may also use rubber or other soft materials.
- the sealing structure may be provided radially outside or radially inside the peripheral wall of the volute.
- the rotary circular plate 142 is disposed in such a manner as to project towards an interior of the impeller 14 in a direction from the edge to an axis center of the rotary circular plate 142.
- the rotary circular plate 142 presents substantially a cup shape or a tapered shape, and the radial inside of the rotary circular plate 142 forms a motor accommodating space.
- the rotary shaft 112 of the motor passes through the volute into the volute, and a portion of the motor main body 117 may be located within the motor accommodating space.
- the first half sidewall 132 of the first half 13 is correspondingly formed with an inner recess 1321, the center of which is provided with a motor mounting port 133.
- the inner recess 1321 is further disposed to project towards an interior of the impeller 14 in a direction from the edge to the axis center of the motor mounting port 133.
- the outer wall of the peripheral wall of the motor main body 117 is provided with a flange 133, which is fixed to the support disk 12, and a first damping structure is provided between the flange 133 and the support disk 12.
- the first damping structure is preferably a first damping washer disposed between the flange 133 and the support disk 12.
- the first damping washer 114 is provided in a columnar shape, the outer periphery of the first damping washer 114 in a columnar shape is provided with a socket, and the flange 133 which is sheet-like is inserted into inside the first damping washer 114 from said socket.
- the first damping washer 114 is provided with a through hole communicating with a mounting hole of the flange 133.
- the connection piece such as a screw and a bolt after passing through a through hole of the first damping washer 114 and a mounting hole of the flange 133 is connected to the support disk 12 such as to be fix the motor 11.
- the first damping washer 113 preferably uses a rubber support.
- a second damper structure is provided between the rotary shaft 112 of the motor and the rotary circular plate 142 of the impeller 13.
- the second damping structure comprises a rubber sleeve 115 and a metal collar 116; the rubber sleeve 115 is fixed at an outer periphery of the rotary shaft 112 of the motor to rotate synchronously with the motor shaft 11.
- the outer periphery of the metal collar is connected to the rotary circular plate 142, and the inner periphery is connected to the rubber sleeve 115.
- the power of the rotary shaft 112 of the motor is transferred to the rotary circular plate 142 to further drive rotation of the impeller 14, and the presence of the rubber 115 may effectively reduce vibration transferred by the motor 11 to the impeller 13 and effectively reduce the noise.
- a cylindrical support 134 is provided at an edge of the motor mounting port 133 of the first half 13, and the cylindrical support 134 is internally provided with a through hole communicating with the motor mounting port 133.
- the fixed end of the cylindrical support 134 is connected to the edge of the motor mounting port 133, and the free end of the cylindrical support 134 extends in an axis towards a direction away from a center of the volute.
- At least a portion of the motor main body 117 is located within the cylindrical support 134 such that the rotary shaft 112 of the motor passes through the motor mounting port 133 and is connected to the impeller 14.
- a third damping structure is provided between the cylindrical support 134 and an outer wall of the cylindrical wall of the motor main body 117.
- the third damping structure is a second sealing ring 135 provided at an end or an inner wall of the cylindrical support 134.
- an elastic fit is formed between the second sealing ring 135 and the outer wall of the peripheral wall of the motor main body 117, such as to reduce vibration transferred by the motor to the volute.
- the second sealing ring 135 may be mounted on the cylindrical support 134, and may also be mounted at an outer periphery of the motor main body 117.
- the second sealing ring 135 is provided to be an annular structure having a U cross section, the opening of which is directed towards a free end of the cylindrical support 134 and mounted at a free end of the cylindrical support 134.
- the inner peripheral wall of the second sealing ring 135 abuts against the outer wall of the peripheral wall of the motor main body 117.
- the inner periphery of the second sealing ring which is provided with a sealing lip extending towards the motor, may abut against the outer wall of the peripheral wall of the motor main body 117.
- the volute 13 is provided with a mounting seat 136, and the support disk 12 is connected to the mounting disk 136 such as to be mounted to the first half 13.
- the lateral face of the support disc 12 opposite to the cylindrical seat 134 is pressed against the second sealing ring 135 to sandwich the second sealing ring between the support disk 12 and the cylindrical support 134, so as to better fix the second sealing ring 135.
- the mounting structure of the volute motor of the present embodiment comprises the aforementioned volute fan and mounting plate 4, in which the volute fan is mounted on the mounting plate 4, and the mounting plate is provided with a mounting plate air inlet 41.
- the second half 15 is fixedly connected to the mounting plate 4 through a fastener such as a screw, a bolt and a rivet, the volute air inlet 153 on the second half 15 is opposite to the mounting plate air inlet 41 on the mounting plate 4 in position, and the motor 11 and the impeller 14 are both mounted to the first half 14.
- the first half 13 mounted with the motor 11 and the impeller 14 is connected to the second half 15 such as to mount the volute fan to the mounting plate 4.
- the sequence of the step I and the step II may be interchanged and may also be performed at the same time.
- the motor 11 and the impeller 14 of the volute fan of the embodiment I are fully mounted on the first half 13, and integrally mounted with the first half 13 upon installation, so that the installation is more convenient.
- first, second, third and the like herein may be used to describe each element, member, area, layer and/or segment, such elements, parts, areas, layers and/or segments should not be limited by such terms. Such terms may only be used for differentiating an element, member, area, layer or segment from another element, area, layer or segment.
- the terms such as “first” and “second” and other value terms when used herein do not mean an order or sequence unless specifically specified in the context. Accordingly, the first element, member, area, layer or segment discussed below may be called as a second element, member, area, layer or segment, without departing from the teaching of the exemplary embodiments. Further, in the descriptions of the present invention, unless otherwise explained, the meaning of "a plurality of" is two or more.
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Abstract
Description
- The present application claims the priority right of the Chinese patent application No.
201510579262.2 - The present invention relates to the field of an air blowing mechanism, and specifically relates to a volute fan combination structure and a vertical air conditioner.
- At present, the air conditioning device in the market may sometimes be provided with two volute fans to blow towards two opposite directions, when there is a demand for bidirectional blowing. However, limited by the power and volume of a volute fan, upon application on a very large air conditioning device, for example a vertical air conditioner, there may be a problem of insufficient air volume. If the power of a volute fan is raised, the volume of the volute fan may also be increased along therewith, so that it is further necessary to enlarge an overall volume of the vertical air conditioner, in particular to enlarge a width and/or thickness of the vertical air conditioner, and to increase a transversely occupied space by the vertical air conditioner. These are all unfavorable for installation, use and transportation of the vertical air conditioner.
- In view of this, the present invention provides a volute fan combination structure capable of reducing the influence on the air blowing of an intermediate volute fan by a volute of the volute fans at both sides in an air blower device having multiple volute fans.
- In order to achieve the object, the present invention uses the following technical solution:
- A volute fan combination structure comprises: a mounting plate; at least two adjacent volute fans mounted on said mounting plate; wherein one volute fan of the two adjacent volute fans has an intermediate inclined air outlet located between the two adjacent volute fans, said intermediate inclined air outlet extending along a direction away from said mounting plate.
- Preferably, in the aforementioned volute fan combination structure, the inner surface adjacent to said mounting plate of said intermediate inclined air outlet representing a slope or camber, an extension of said slope or an extension of a tangent plane of said camber not intersecting with a volute of another volute fan adjacent to said intermediate inclined air outlet.
- Preferably, in the aforementioned volute fan combination structure, there comprise three volute fans having a third volute fan, a second volute fan and a first volute fan provided in an upward sequence; said second volute fan comprising second volute fan air outlets blowing air upwards and/ or blowing air downwards, said second volute fan air outlets extending along a direction away from said mounting plate.
- Preferably, in the aforementioned volute fan combination structure, the inner surface adjacent to said mounting plate of said second volute fan air outlets representing a slope or camber, an extension of a corresponding slope or an extension of a tangent plane of an camber not intersecting with a volute of the first volute fan or the third volute fan opposite to said second volute fan said air outlets
- Preferably, in the aforementioned volute fan combination structure, said first volute fan comprising a first volute fan air outlet blowing air upwards; and said third volute fan comprising a third volute fan air outlet blowing air downwards.
- Preferably, in the aforementioned volute fan combination structure, said second volute fan air outlet comprising a second volute fan first air outlet blowing air upwards and a second volute fan second air outlet (29) blowing air downwards.
- Preferably, in the aforementioned volute fan combination structure, the inner surface adjacent to said mounting plate of said second volute fan first air outlet representing a slope or camber, an extension of said slope or an extension of a tangent plane of the camber not intersecting with a volute of the first volute fan; and the inner surface adjacent to said mounting plate of said second volute fan second air outlet representing a slope or camber, an extension of said slope or an extension of a tangent plane of the camber not intersecting with a volute of the third volute fan.
- Preferably, in the aforementioned volute fan combination structure, a first deflector parallel to said mounting plate provided at least on a wall away from said mounting plate of said second volute fan first air outlet; and/ora second deflector parallel to said mounting plate provided at least on a wall away from said mounting plate of second volute fan second air outlet.
- Preferably, in the aforementioned volute fan combination structure, said first deflector comprising a sleeve extending upwards, and said second deflector comprising a sleeve extending downwards.
- Preferably, in the aforementioned volute fan combination structure, said second volute fan is located forward of said first volute fan and said third volute fan along a front-and-rear direction.
- Preferably, in the aforementioned volute fan combination structure, said mounting plate is provided with a first fan mounting portion, a second fan mounting portion and a third volute fan mounting portion for respectively mounting the first volute fan, the second volute fan and the third volute fan correspondingly, and wherein said second fan mounting portion is disposed such as to project towards the front of said mounting plate and forward of said first fan mounting portion and said third fan mounting portion.
- Another object of the present invention is to provide a vertical air conditioner, which specifically uses the following solution:
- A vertical air conditioner, comprises a housing provided with a top air outlet located at a top thereof and a bottom air outlet located at a bottom thereof; a main body air duct provided within the housing, said main body air duct respectively communicating with said top air outlet and said bottom air outlet, and said volute fan combination structure according to
claim 1, said volute fan combination structure is provided within said housing and blows air towards said top air outlet and/or said bottom air outlet through said main body air duct. - The advantageous effects of the present invention are as follows:
- 1. For a combination of a plurality of volute fans arranged sequentially, one volute fan in two adjacent volute fans has an inclined air outlet located between two adjacent volute fans, which inclined air outlet extends such as to be inclined from rear to front towards a direction away from a volute of said one volute fan, such that said one volute fan is capable of inclindedly blowing air in an air blowing direction that can avoid disturbance by adjacent volute fans, and at the same time the volute fans as a whole may also be arranged on a plane, with slight variation in volume.
- 2. For a combination structure of three volute fans, two air outlets of the second volute fan are inclinedly provided such as to reduce a size of second volute fan projecting out of the first volute fan and the third volute fan, so that it is possible to reduce the influence on the overall size of a vertical air conditioner in a thickness and/or thickness direction.
- 3. The intermediate second volute fan is capable of bidirectionally blowing air such as to increase an overall air blowing volume under the circumstance that there is no need to make any change to the original volute fans.
- 4. Further, it is also possible to allow that the second volute fan is located forward than the first volute fan and the third volute fan in a front-and-rear direction, such as to reduce an inclined extent of an inclined air outlet of the second volute fan, so that the air blowing of the second volute fan is more smooth.
- 5. With a slight influence on the overall size of an air conditioning device for example a vertical air conditioner, the volute fan uses such a combined manner that the inclined air outlet and the volute fan are staggeringly disposed, which results in less increase in thickness, so that it is only necessary to adjust a height of the vertical air conditioner such as to satisfy the variation requirement in space. As the overall size of a vertical air conditioner is generally very high, the adjustment in height affects less the design of the overall size.
- 6. A deflector for adjusting an air direction of an air outlet is provided at the inclined air outlet of the second volute fan, such that air blowing of the air outlet is delivered in a direction substantially parallel to the mounting plate after avoiding the first volute fan and the third volute fan. When the air conditioning device is provided to blow air unidirectionally, the influence on reciprocal air flow may be reduced by reflection air of the front panel.
- The aforementioned as well as other objects, features and advantages of the present invention will be more clear, by means of the following descriptions of the embodiments of the present invention with reference to the drawings, in which drawings:
-
Figure 1 is an exterior view of the air conditioning device of the present invention. -
Figure 2 is a schematic view of mounting the volute combination structure within the air conditioning device. -
Figure 3A is a schematic view of an air flow of the air conditioning device of the present invention in such a state that the upper and lower air outlets are both opened. -
Figure 3B is a schematic view of an air flow of the air conditioning device of the present invention in such a state that the lower air outlet is closed and the upper air outlet is opened. -
Figure 4 is a locally enlarged view of the portion A inFigure 3A . -
Figure 5 is a front view of the volute fan combination structure. -
Figure 6 is a side view of the volute fan combination structure. -
Figure 7 is an exploded schematic view of a volute fan and a mounting plate of the volute fan combination structure. -
Figure 8 is a front view and a side view of the mounting plate provided with a second volute half. -
Figure 8B is an enlarged view of the portion B inFigure 8 . -
Figure 9 is a schematic view of assembling a first half provided with an impeller and a motor and a mounting plate with a second half. -
Figure 10 is a side view of the second volute fan. -
Figure 11 is a sectional view of the second volute fan. -
Figure 12 is a sectional view of another embodiment of the second volute fan. -
Figure 13 is an exploded sectional view of the first volute fan. -
Figure 14 is an exterior view of the first volute fan. -
Figure 15 is a sectional view of a mounting structure of the first volute fan. -
Figure 16 is a locally enlarged view of the area D inFigure 15 . -
Figure 17 is a locally enlarged view of the area E inFigure 15 . -
Figure 18 is a locally enlarged view of the area F inFigure 15 .. - The present invention is described as follows on the basis of the embodiments, but the present invention is not only limited to such embodiments. Several specific detailed portions are described in detail in the following detailed descriptions of the present invention. For a person skilled in the art, the present invention may also be fully understood without descriptions of such detailed portions. In order to avoid confusion of the essence of the present invention, detailed narrations are not made to the commonly known methods, processes, flow procedures, and elements.
- In the present application, the definition of the direction is shown in
Figures 1 ,2 , wherein the front-and-rear direction is defined to be along a direction perpendicular to the mountingplate 4, in which thefront panel 51 is located at the front, and the rear panel is located at the rear; the longitudinal direction is defined to be along a direction parallel to the mounting plate, in which thetop air outlet 53 is located above, and thelower air outlet 54 is located below. The latitudinal direction is defined to be along a direction parallel to the mounting plate and perpendicular to the longitudinal direction, wherein the left hand direction inFigure 1 is a left side, and the right hand direction is a right side. The side perpendicular to a principal plane direction and proximate to an observer is a left side, and the side opposite to the left side is a right side. - The present application designs a volute fan combination structure of an air conditioning device, which comprises a mounting
plate 4 and a plurality of volute fans. The air conditioning device specifically refers to an electrical appliance device such as a vertical air conditioner, a fan and an air filter, which has an air blowing function and is capable of adjusting indoor air parameters. As shown inFigures 1-3 , the air conditioning device has ahousing 5, above which atop air outlet 53 is provided preferably at the top; below which abottom air outlet 54 is provided preferably on a seat at the bottom of thehousing 5. The housing comprises afront panel 51 and arear panel 55, between which a hollow chamber is enclosed. The hollow chamber is internally provided with a volute fan combination structure, which mainly consists of a mountingplate 4 and a plurality of volute fans. Its specific structure will be described in detail later. The volute fan combination structure is arranged within said hollow chamber along a longitudinal direction, and the volute is provided in front of the mountingplate 4 and opposite to a position of thefront panel 51. The mountingplate 4 divides the hollow chamber into two independent parts, and a space between a rear side of the mountingplate 4 and therear panel 55 is formed with an air intake duct 57 which communicates with an air intake grill located on therear panel 55. As a preferable solution, the air intake duct 57 is further internally provided with a heat exchange mechanism such as an evaporator. The space between a front side of the mountingplate 4 and thefront panel 51 forms a main body air duct 56 of the air conditioning device, which main body air duct 56 respectively communicates with thetop air outlet 53 and thebottom air outlet 54. At a position corresponding to a volute mounting position, the mountingplate 4 is provided with a mounting plate air inlet, a position of which is opposite to that of the volute air inlet. The air outlet of the volute communicates with the main body air duct 56. When the air conditioning device operates, air enters the air intake duct 57 after passing through the air intake grill on therear panel 55, then enters the volute air outlet through a mounting plate air inlet, is conveyed to the main body air duct 56 through the volute air outlet after being accelerated by a centrifugal fan of the volute fan, then may move downwards within the main body 56 such as to be blown out by thebottom air outlet 54, and/or move upwards such as to be blown out by thetop air outlet 53. - The volute fan combination structure of the present application, comprises a mounting plate and at least three volute fans mounted on a front side face of the mounting plate, the at least three volute fans comprises an upper volute fan located above and provided with an air outlet blowing air upwards, and a lower volute fan located below and provided with an air outlet blowing air downwards, and further comprises at least one intermediate volute fan between the upper volute fan and the lower volute fan. The at least one intermediate fan comprises at least one bidirectional volute fan having a bidirectional air outlet capable of blowing air upwards and downwards at the same time, and said bidirectional air outlet and the volute fan adjacent to said bidirectional volute fan are staggeringly disposed in a front-and-rear direction. The at least one intermediate volute fan may be a combination of a bidirectional volute fan and a unidirectionally blowing volute fan, and may also be fully bidirectional volute fans. The specific manner that the bidirectional air blower and the volute fan adjacent to said bidirectional volute fan are staggered in a front-and-rear direction may use staggering the volute fans in a front-and-rear direction, providing the bidirectional air outlet to blow air inclinedly, as well as a combination of the aforementioned two manners. The specific structure may be described in detail below.
- Next, detailed explanations are made to the volute fan combination structure of the present application by taking
Figures 3-18 for example. As shown inFigures 5-7 , the volute fan combination structure comprises a mountingplate 4, as well as three volute fans (hereinafter referred to as fans for short). The three volute fans comprise afirst volute fan 1 provided at an upper side of the mountingplate 4, a thirdvolute fan 3 located a lower side of the mountingplate 4, as well as asecond volute fan 2 provided on the mountingplate 4 and located between thefirst volute fan 1 and the thirdvolute fan 3. Among them, thefirst volute fan 1 has a first volutefan air outlet 18 blowing air upwards; the third volute fan is provided with a third volutefan air outlet 39 blowing air downwards; the second volute fan has two air outlets, in which the second volute fanfirst air outlet 28 is provided to blow air upwards, and the second volute fan second air outlet 29 is provided to blow air downwards. It is necessary to explain that, although the mounting plate in the present embodiment is provided in a longitudinal direction, and the three volute fans are also arranged in a longitudinal direction, the technical solution of the present application should not be limited in a mounting plate structure provided in a longitudinal direction. It is both possible that the mounting plate uses a horizontal arrangement or an inclined arrangement. The longitudinal, latitudinal and front-and-rear definitions mentioned in the present text are all relative directions with respect to the mounting plate. - The
second volute fan 2 is disposed between thefirst volute fan 1 and the thirdvolute fan 3, and the air outlet is provided in such a manner as to blow air longitudinally. If three fans are mounted on the same plane according to a conventional manner, the volute of thefirst volute fan 1 and the volute of the thirdvolute fan 3 may form a barrier for the air blowing of the second volute fan, which impedes air blown by thesecond volute fan 2 from smoothly entering the main body air duct 56. Accordingly, the three fans are provided to present a staggered structure in space, such that the second volute fanfirst air outlet 28 and the second volute fan second air outlet 29 are staggered in space from positions of thefirst volute fan 1 and the thirdvolute fan 3. The influence on the air blowing of thesecond volute fan 2 by thefirst volute fan 1 and the thirdvolute fan 3 is reduced to minimum as much as possible, for example the three fans are staggeringly disposed in a front-and-rear direction and/or a latitudinal direction. - As a preferred embodiment, as shown in
Figure 6 , it uses such a manner that the three fans are staggeringly disposed back and forth. Specifically, a mounting position of thesecond volute fan 2 on the mountingplate 4 is disposed at a front side of a mounting position of the third and third volute fans, i.e. thesecond volute fan 2 is disposed at a position that is closer to the main body air duct 56 than a position at which thefirst volute fan 1 and the thirdvolute fan 3 are disposed, such that the air blown by thesecond volute fan 2 in a longitudinal direction may at least partially avoid disturbance of a volute of thefirst volute fan 1 and a volute of the thirdvolute fan 3, so that it is conveyed through the main body air duct 56 more smoothly. Preferably, it is effectuated that a mounting position of thesecond volute fan 2 on the mountingplate 4 is disposed at a front side of mounting positions of the second and third volute fans by changing a shape of the mountingplate 4. As shown inFigure 6-8 , the mounting plate has a firstfan mounting portion 41, a secondfan mounting portion 42 and a thirdfan mounting portion 43, in which steps are formed between the secondfan mounting portion 42 and the firstfan mounting portion 41/thirdfan mounting portion 43, such that the secondfan mounting portion 42 projects in a forward direction towards thefront panel 51 relative to the firstfan mounting portion 41 and the thirdfan mounting portion 43. In this way, under the circumstance without changing a shape of the three fans, it is possible to allow that a mounting position of thesecond volute fan 2 on the mountingplate 4 is located at a front side of mounting positions of the first and third volute fans when the three fans are mounted on the mountingplate 4. The advantage of staggered arrangement back and forth is only to increase a thickness in a front-and-rear direction for certain extent, without increasing a thickness of the volute fan assembly in a latitudinal direction, so that there is a very slight influence on the overall size of the air conditioning device. As a preferred manner, the rear walls of the second volute fanfirst air outlet 28 and the second volute fan second air outlet 29 have an inner surface which may present a plane parallel to the mounting plate, and the extension of the plane does not intersect with the volutes of thefirst volute fan 1 and the thirdvolute fan 3 respectively. In this way, it may allow that the air blown by thesecond volute fan 2 may not be blown onto the volutes of thefirst volute fan 1 and the thirdvolute fan 3, and the influence on the air blowing of thesecond volute fan 2 by thefirst volute fan 1 and the thirdvolute fan 3 is reduced to minimum. - It is also possible to use such a manner that the three fans are staggered in a latitudinal direction (not shown in the drawings), i.e. the
second volute fan 2 is arranged at a left side or a right side of thefirst volute fan 1 and the thirdvolute fan 3, which may also effectuate reducing disturbance of the air blowing of the second volute fan by thefirst volute fan 1 and the thirdvolute fan 3. However, such manner may significantly increase a width of the volute fan assembly in a latitudinal direction, which is unfavorable for the overall layout of the air conditioning device. - As another preferred embodiment, the second volute fan
first air outlet 28 and the second volute fan second air outlet 29 of thesecond volute fan 2 may also be inclinedly disposed relative to the volute of thesecond volute fan 2. TakeFigures 3-6 for example, in an actual installation state, the volute of thesecond volute fan 2 is mounted in such a manner as to be substantially parallel to a plane of the second volutefan mounting portion 42 of the mountingplate 4. As shown inFigure 3 , the volute plane of thesecond volute fan 2 extends substantially along a longitudinal direction. The second volute fanfirst air outlet 28 and the second volute fan second air outlet 29 are disposed such as to extend in a direction from the mountingplate 4 to the front panel 51 (i.e. a front-and-rear direction) towards a direction away from the volute. Specifically, the second volute fanfirst air outlet 28 is disposed to blow air in a forwardly upward direction, and the second volute fan second air outlet 29 is disposed to blow air in a forwardly downward direction. With reference toFigures 6 ,10, 11 , the second volute fanfirst air outlet 28 comprises aninner surface 282 of a rear wall of the second volute fan first air outlet proximate to the secondfan mounting portion 42 and aninner surface 281 of a front wall of the second volute fan first air outlet proximate to thefront panel 51, theinner surface 281 of a front wall of the second volute fan first air outlet may present a slope or an camber, and theextension 2811 of the tangent of the slope or camber and the plane of the mountingplate 4 present a first inclination θ1; theinner surface 282 of a rear wall of the second volute fan first air outlet may present a slope or an camber, and theextension 2821 of the slope or camber and the plane of the mountingplate 4 present a second inclination θ2. The first inclination θ1 may be the same as or different from the second inclination θ2 in size. The second volute fan second air outlet 29 has aninner surface 292 of a rear wall of the second volute fan second air outlet proximate to the secondfan mounting portion 42 and aninner surface 291 of a front wall of the second volute fan second air outlet proximate to thefront panel 51, theinner surface 291 of a front wall of the second volute fan first air outlet may present a slope or an camber, and thetangent direction 2911 of the slope or camber and the plane of the mountingplate 4 present a third inclination θ3; theinner surface 292 of a rear wall of the second volute fan second air outlet may present a slope or an camber, and thetangent direction 2921 of the camber and the plane of the mountingplate 4 present a fourth inclination θ4. The third inclination θ3 may be the same as or different from the fourth inclination θ4 in size. As a preferred manner, the extension of the slope or theextension 2821 of the tangent of the camber of theinner surface 282 of the rear wall of the second volute fan first air outlet does not intersect with the volute of thefirst volute fan 1, as shown inFigure 4 . The extension of the slope or theextension 2921 of the tangent of the camber of theinner surface 292 of the rear wall of the second volute fan second air outlet does not intersect with the volute of the third volute fan 1 (not shown in the drawings). The meaning of not intersecting is specifically signified that, the portion on the extension of the slope or theextension 2821 of the tangent of the camber which overlaps with a projection of the volute on the positioning plate is located in front of the volute in a front-and-rear direction. By means of such configuration, it is possible to allow that the air blown by the second volute fanfirst air outlet 28 and the second volute fan second air outlet 29 may not be blown onto the volutes of thefirst volute fan 1 and the thirdvolute fan 3, such as to reduce the disturbance of the air blowing of thesecond volute fan 2 by the volutes of thefirst volute fan 1 and the thirdvolute fan 3. - As another preferred embodiment, it uses a combination of the aforementioned staggered manners. As shown in
Figure 3-7 , the mounting plate has a firstfan mounting portion 41, a secondfan mounting portion 42 and a third volutefan mounting portion 43, in which steps are formed between the second volutefan mounting portion 42 and the firstfan mounting portion 41/thirdfan mounting portion 43, such that the secondfan mounting portion 42 projects in a forward direction towards thefront panel 51 relative to the firstfan mounting portion 41 and the thirdfan mounting portion 43. At the same time, the second volute fanfirst air outlet 28 and the second volute fan second air outlet 29 are provided to be disposed inclinedly relative to the volute, i.e. extending in a direction from the mountingplate 4 to the front panel 51 (i.e. a front-and-rear direction) towards a direction away from the volute. Preferably, an extension of the slope or anextension 2821 of the tangent of the camber of theinner surface 282 of the rear wall of the second volute fan first air outlet does not intersect with the volute of thefirst volute fan 1, as shown inFigure 4 . An extension of the slope or anextension 2921 of the tangent of the camber of theinner surface 292 of the rear wall of the second volute fan second air outlet does not intersect with the volute of the thirdvolute fan 3. Such combination of staggered manners may reduce an increase in a thickness (a front-and-rear direction) of the volute fan combination structure resulting from staggering in a front-and-rear direction, and at the same time may also avoid that the inclined angles of the second volute fanfirst air outlet 28 and the second volute fan second air outlet 29 relative to the volute is so large as to affect the air blowing of the volute fan, ensure that there is no significant increase of size in both a thickness (a front-and-rear direction) and width (a latitudinal direction) of the volute fan combination structure, and facilitate an optimized design of the overall structure of the air conditioning device. At the same time, the disturbance of the air blowing of the second volute fan by of the first volute fan and the third volute fan is also very low, such that the air blown by the three fans is capable of moving smoothly within the main body air duct 56. - As another preferred manner, a deflector may be provided at a second volute fan
first air outlet 28 and/or second volute fan second air outlet 29 inclinedly disposed at the second volute fan. As shown inFigure 12 , anupper deflector 280 is provided at the second volute fanfirst air outlet 28, and alower deflector 290 is provided at the second volute fan second air outlet 29. Theupper deflector 280 is at least disposed at a front wall of the second volute fanfirst air outlet 28, i.e. at a position proximate to thefront panel 51; thelower deflector 290 is at least disposed at a front wall of the second volute fan second air outlet 29, i.e. at a position proximate to thefront panel 51. Theupper deflector 280 and thelower deflector 290 extend substantially in such a manner as to be parallel to the mountingplate 4 and/orfront panel 51, i.e. along a longitudinal direction. Preferably, theupper deflector 280 and thelower deflector 290 have a structure of a sleeve which is provided at the second volute fanfirst air outlet 28 and the second volute fan second air outlet 29, and which extends along a substantially longitudinal direction. In this way, air blown by theupper air outlet 28 and the lower air outlet 29 may enter the main body air duct 56 in a manner of a heading substantially parallel to the main body air duct 56, to reduce disturbance of air stream within the main body air duct 56 by reflection airflow of thefront panel 51, so as to make a more smooth air flow within the main body air duct 56, and reduce the energy loss. At the same time, if one of thetop air outlet 53 or thebottom air outlet 54 is closed, as shown inFigure 3B , for instance thebottom air outlet 54 is closed. At this time, air blown downwards by the second volute fan second air outlet 29 and the third volutefan air outlet 39 returns after moving to a lower end of the main body air duct 56, and moves towards thetop air outlet 53 through the thirdvolute fan 3 as well as a passage formed between the volute and thefront panel 51 of thesecond volute fan 2. Due to presence of the lower deflector, air blown downwards by the lower air outlet 29 is substantially parallel to the main body air duct 56, the lower reciprocal air when passing through the passage between the volute and thefront panel 51 of thesecond volute fan 2 may not be disturbed by air blown by the lower air outlet 29, so as to able to smoothly move upwards. If thelower deflector 290 is not provided, the air blown by the lower air outlet 29 which is inclined forwardly downwards may cause a barrier for the lower reciprocal air, so that the reciprocal air cannot smoothly move upwards. Similarly, it applies to theupper deflector 280 in a way such that the effect produced by theupper deflector 280 is the same as the effect produced by thelower deflector 290 when thetop air outlet 53 is closed. - Next, the specific installation manner of the volute fan assembly is explained by referring to the structures shown in
Figures 7-9 . The mounting plate has a firstfan mounting portion 41, a secondfan mounting portion 42 and a thirdfan mounting portion 43, which are respectively provided with a first fan mounting face, a second fan mounting face and a third fan mounting face (not shown in the drawings). Among them, the second fan mounting face is disposed to project in a direction towards the front panel relative to the first fan mounting face and the third fan mounting face. An enclosure provided at an edge of the first fan mounting face and the third fan mounting face may reinforce the overall strength of the mounting plate, and at the same time allow that the firstfan mounting portion 41 and the thirdfan mounting portion 43 form a depression, as shown inFigure 8 . The first fan mounting face, the second fan mounting face and the third fan mounting face are respectively formed with a first mountingplate air inlet 411, a second mountingplate air inlet 421 and a third mountingplate air inlet 431, as shown inFigure 8 . The volute of the fan consists of two halves, which possess substantially the same thickness. Preferably, the two halves are formed by sectioning the volute from a centerline perpendicular to an axis of the volute, so that such configuration facilitates the manufacture of halves. Specifically, thefirst volute fan 1 includes a first fanrear half 15, a firstfan front half 13, afirst motor 11, and afirst impeller 14. The first fanrear half 15 and the firstfan front half 13 constitute the first volute, the first volute fanrear half 15 is opened with a first volute air inlet, and thefirst motor 11 and thefirst impeller 14 are mounted on the firstfan front half 13. Thesecond volute fan 2 includes a second fanrear half 25, a secondfan front half 23, asecond motor 21, and asecond impeller 24. The second fanrear half 25 and the secondfan front half 23 constitute the second volute, the second fanrear half 25 is opened with a second volute air inlet, and thesecond motor 21 and thesecond impeller 24 are mounted on the secondfan front half 23. The thirdvolute fan 3 includes a third fanrear half 35, a third fan front half 33, athird motor 31, and athird impeller 34. The third fanrear half 35 and the third fan front half 33 constitute the third volute, the third fanrear half 35 is opened with a third volute air inlet, and thethird motor 31 and thethird impeller 34 are mounted on the third fan front half 33, specifically as shown inFigure 9 . - When the
first volute fan 1, thesecond volute fan 2, and the thirdvolute fan 3 are respectively mounted to the firstfan mounting portion 41, the secondfan mounting portion 42 and the thirdfan mounting portion 43, the first fanrear half 15, the second fanrear half 25 and the third fanrear half 35 are respectively fixed to a first fan mounting face, a second fan mounting face and a third fan mounting face of the firstfan mounting portion 41, the secondfan mounting portion 42 and the thirdfan mounting portion 43 by means of a connection piece which may be a screw, a bolt, a rivet and the like. As shown inFigure 8B , it uses a manner of ascrew 91. The first volute air inlet, the second volute air inlet and the third volute air inlet are respectively opposite to the first mountingplate air inlet 411, the second mountingplate air inlet 421 and the third mountingplate air inlet 431. As the firstfan mounting portion 41 and the thirdfan mounting portion 43 form a depression, said first fanrear half 15 and said third fanrear half 35 are embedded into said depression, and the fanrear half 25 is located on the secondfan mounting portion 42 by projecting out of the mountingplate 4. The firstfan front half 13, the secondfan front half 23 and the third fan front half 33 after the corresponding motor and impeller are mounted, are integrally connected to the first fanrear half 15, the second fanrear half 25 and the third fanrear half 35 respectively, such as to further constitute the whole volute fan combination structure, as shown inFigure 9 . Compared to a conventional manner of mounting a motor to a mounting plate, the motor of the present application is mounted on a volute, and the motor and the impeller may be removable together with the volute, without requiring to remove the mounting plate, thereby improving the convenience and the maintainability in the whole assembly. The specific structure of the volute motor will be described in detail later. - Next, the mounting structure of the volute motor is described in detail by taking the
first motor 1 and the mountingplate 4 for example, as shown inFigures 13-18 . In the following descriptions, the axial direction is defined to be a direction parallel to an axis of the motor, the radial direction is defined to be a direction perpendicular to an axis of the motor, the circumferential direction is defined to be a direction rotating about an axis of the motor. The term "side" is concerned relative to an axis direction of the motor. For example inFigure 13 , the first half 13 (a first fan front half) is located at one side, the second half 15 (a first fan rear half) is located at the other side, and theimpeller 14 is located between thefirst half 13 and thesecond half 15. - As shown in
Figure 15 , when said volute is viewed from an axial cross section obtained by cutting the volute from a plane containing anaxis 111 of the motor, a distance from a peripheral wall of the volute proximate to a centerline of the volute in a direction of said axis to said axis is greater than a distance from a peripheral wall of the volute at both sides in the axis to saidaxis 111, and the distance is a distance from a centerline of the peripheral wall to the axis 144 of the impeller, with a different of H. Preferably, a distance from an outer wall of a peripheral wall of the volute proximate to acenterline 139 of the volute in a direction of saidaxis 111 to saidaxis 111 is greater than a distance from an outer wall of a peripheral wall of the volute at both sides in theaxis 111 to saidaxis 111, with a different of HI (not shown in the drawings). Preferably, the outer wall of a peripheral wall of the volute has a cross section which may be an arc, a trapezoid, a trimmed arc, a triangle, or other polygons. Preferably, a distance from an outer wall of a peripheral wall of the volute proximate to acenterline 139 of the volute in a direction of saidaxis 111 to saidaxis 111 is greater than a distance from an outer wall of a peripheral wall of the volute at both sides in theaxis 111 to saidaxis 111, with a different of HI (not shown in the drawings). Preferably, the outer wall of a peripheral wall of the volute has a cross section which may be an arc, a trapezoid, a trimmed arc, a triangle, or other polygons. By designing an outer wall of a peripheral wall of the volute to be an intermediately projecting structure, it may be adapted to different vertical air conditioner structures for example having a curved housing. Further, as the peripheral wall of the volute usually has a uniform thickness, the projection of the outer wall of the peripheral wall may allow that the inner wall of the peripheral wall also presents a projecting structure. By comparing the volutes of which the peripheral wall is perpendicular to the sidewall, it is possible to increase a volume inside the volute, and improve the air sending capability of the volute fan. - In order to facilitate the manufacture, the volute may be provided in a divided structure. As shown in
Figures 13-15 , the volute comprises afirst half 13 and asecond half 15, thefirst half 13 comprises a first halfperipheral wall 131 and afirst half sidewall 132, the second half comprises a second halfperipheral wall 151 and asecond half sidewall 152, and the first halfperipheral wall 131 and the second halfperipheral wall 151 are bent in such a manner as to surround a periphery of theimpeller 14. The first halfperipheral wall 131 comprises a fixed end connected to an edge portion of thefirst half sidewall 132 and a first connection end away from thefirst half sidewall 132. The second halfperipheral wall 151 comprises a fixed end connected to an edge portion of thesecond half sidewall 152 and a second connection end away from thesecond half sidewall 152. Thefirst connection end 1311 of the first halfperipheral wall 131 is connected to thesecond connection end 1511 of the second halfperipheral wall 151, so that an accommodating cavity is formed inside thefirst half 13 and thesecond half 15 for accommodating theimpeller 14, and formed in a cylindrical shape with a radius increasing along a rotation direction of theimpeller 14 relative to theaxis 111 of the motor. - The
motor 11 of the volute motor in the present embodiment comprises a motormain body 117 and arotary shaft 112. Theimpeller 14 which is mounted within the accommodating cavity, presents a cylindrical shape formed in a way such that a plurality ofblades 141 elongately formed in an axial direction of theaxis 111 of the motor present a radiating shape and are configured at specified gaps. One end of theblades 141 is mounted to an outer edge portion of a rotarycircular plate 142 in a substantially circular shape, and the other end of theblades 141 is mounted to asupport ring 143 in an annular shape and internally formed with an impeller air inlet. The rotarycircular plate 142 is centrally fixed at therotary shaft 112 of the motor, and under the drive of themotor 11, theimpeller 14 rotates with therotation shaft 112 as a center. Thefirst half 13 is provided with amotor mounting port 133, adjacent to which the rotarycircular plate 142 of the impeller is disposed. Therotary shaft 112 of themotor 11 passes through the motor mounting port and is connected to the rotarycircular plate 142 of theimpeller 14, such as to drive rotation of the rotarycircular plate 142. Thesecond half 15 is provided with avolute air inlet 153 which corresponds to the impeller air inlet in position for guiding air towards inside theimpeller 14. The motormain body 117 is supported by thefirst half 13. A first damping means is provided between the motormain body 117 and thefirst half 13, and the structure and the specific mounting manner of the first damping means will be described in detail as follows. - As the volute is usually made from a plastic material with poor overall strength, by directly mounting the motor
main body 117 to thefirst half 13, it may result in inadequate strength of thefirst half 13 to support power of the motor, which results in that thefirst half 13 is deformed or damaged. Accordingly, as a preferred embodiment, there comprises asupport disk 12 which is made from a metal material. Thesupport disk 12 is fixed on thefirst half 13, and preferably fixed on an outer wall of thefirst half sidewall 132 of thefirst half 13, and the motormain body 117 is fixed on thesupport disk 12. Preferably, the motormain body 117 is fixed on a lateral face of thesupport disk 12 away from thefirst half 13. By providing thesupport disk 12, it is possible to allow that the motormain body 117 can be provided on the volute and supported by the volute, and at the same time may not deform or damage the volute. - When a
support disk 12 is provided, the first damping means may be disposed between thesupport disk 12 and the motormain body 117. The outer wall of the peripheral wall of the motormain body 117 is provided with aflange 133, which is fixed to thesupport disk 12, and the first damping means is disposed between theflange 133 and thesupport disk 12. Preferably, the first damping means is preferably a first damping washer disposed between theflange 133 and thesupport disk 12. As a preferred solution, as shown inFigure 13 , the first dampingwasher 114 is provided in a columnar shape, the outer periphery of the first dampingwasher 114 in a columnar shape is provided with a socket, and theflange 133 which is sheet-like is inserted into inside the first dampingwasher 114 from said socket. The first dampingwasher 114 is provided with a through hole communicating with a mounting hole of theflange 133. The connection piece such as a screw and a bolt after passing through a through hole of the first dampingwasher 114 and a mounting hole of theflange 133 is connected to thesupport disk 12 such as to be fix the motormain body 117. The first dampingwasher 113 preferably uses a rubber support. When asupport disc 12 is not provided, themotor 11 may also be directly connected to thefirst half 13 through the aforementioned damping means in a manner of replacing thesupport disc 12 by thefirst half 13. - The
first half periphery 131 extends from a fixed end to afirst connection end 1311 in a radial direction towards a direction away from theaxis 111 of the motor, and thesecond half periphery 151 extends from a fixed end to asecond connection end 1511 in a radial direction towards a direction away from theaxis 111 of the motor. Preferably, the connection of thefirst connection end 1311 of the first halfperipheral wall 131 and thesecond connection end 1511 of the second halfperipheral wall 151 is proximate to thecenterline 139 of the volute perpendicular to theaxis 111 of the motor, or overlaps with thecenterline 139 of the volute perpendicular to theaxis 111 of the motor. - In order to enhance the air-tightness of the volute, a sealing structure may be provided at the connection of the
half 13 and thesecond half 15. Preferably, the sealing structure comprises a rib provided on one of thefirst connection end 1311 of the first halfperipheral wall 131 and thesecond connection end 1511 of the second halfperipheral wall 151 and a groove provided on the other thereof. Preferably, as shown inFigure 15 , the first connection end of the first halfperipheral wall 131 is provided with arib 1312 extending towards thesecond half 15, and the second halfperipheral wall 151 is provided with agroove 1512 corresponding to therib 1312. When thefirst half 13 is connected to thesecond half 15, therib 1312 is embedded into thegroove 1512, so that it is possible to improve the sealing property of the half and avoid air leakage of the peripheral wall of the volute to reduce the efficiency of the volute fan. The structure of therib 1312 and thegroove 1512 may be provided in a single manner and may also be provided in a plural manner. - The sealing structure may also use a form of a sealing ring by providing a flange on one of the
first half 13 and thesecond half 15, and providing a groove on the other thereof. The flange abuts against the groove and presses the sealing ring within the groove to effectuate the sealing. The sealing ring may also use rubber or other soft materials. The sealing structure may be provided radially outside or radially inside the peripheral wall of the volute. - As a preferred embodiment, as shown in
Figure 15 , the rotarycircular plate 142 is disposed in such a manner as to project towards an interior of theimpeller 14 in a direction from the edge to an axis center of the rotarycircular plate 142. The rotarycircular plate 142 presents substantially a cup shape or a tapered shape, and the radial inside of the rotarycircular plate 142 forms a motor accommodating space. Therotary shaft 112 of the motor passes through the volute into the volute, and a portion of the motormain body 117 may be located within the motor accommodating space. By doing so, there are advantages of reducing a length of themotor 11 projecting out of an exterior of the volute, reducing a mounting length of the volute motor in an axial direction, and allowing the overall structure of the volute fan to be more compact. Further, thefirst half sidewall 132 of thefirst half 13 is correspondingly formed with aninner recess 1321, the center of which is provided with amotor mounting port 133. Theinner recess 1321 is further disposed to project towards an interior of theimpeller 14 in a direction from the edge to the axis center of themotor mounting port 133. - In order to further reduce vibration between the motor and the support disk, as shown in
Figure 17 , preferably, the outer wall of the peripheral wall of the motormain body 117 is provided with aflange 133, which is fixed to thesupport disk 12, and a first damping structure is provided between theflange 133 and thesupport disk 12. Preferably, the first damping structure is preferably a first damping washer disposed between theflange 133 and thesupport disk 12. As a preferred solution, as shown inFigure 17 , the first dampingwasher 114 is provided in a columnar shape, the outer periphery of the first dampingwasher 114 in a columnar shape is provided with a socket, and theflange 133 which is sheet-like is inserted into inside the first dampingwasher 114 from said socket. The first dampingwasher 114 is provided with a through hole communicating with a mounting hole of theflange 133. The connection piece such as a screw and a bolt after passing through a through hole of the first dampingwasher 114 and a mounting hole of theflange 133 is connected to thesupport disk 12 such as to be fix themotor 11. The first dampingwasher 113 preferably uses a rubber support. - In order to further reduce vibration between the
motor 11 and theimpeller 14, as shown inFigure 18 , a second damper structure is provided between therotary shaft 112 of the motor and the rotarycircular plate 142 of theimpeller 13. Preferably, the second damping structure comprises arubber sleeve 115 and ametal collar 116; therubber sleeve 115 is fixed at an outer periphery of therotary shaft 112 of the motor to rotate synchronously with themotor shaft 11. The outer periphery of the metal collar is connected to the rotarycircular plate 142, and the inner periphery is connected to therubber sleeve 115. The power of therotary shaft 112 of the motor is transferred to the rotarycircular plate 142 to further drive rotation of theimpeller 14, and the presence of therubber 115 may effectively reduce vibration transferred by themotor 11 to theimpeller 13 and effectively reduce the noise. - Preferably, in order to reduce vibration transferred by the motor
main body 117 to thevolute 13, acylindrical support 134 is provided at an edge of themotor mounting port 133 of thefirst half 13, and thecylindrical support 134 is internally provided with a through hole communicating with themotor mounting port 133. As shown inFigure 17 , the fixed end of thecylindrical support 134 is connected to the edge of themotor mounting port 133, and the free end of thecylindrical support 134 extends in an axis towards a direction away from a center of the volute. At least a portion of the motormain body 117 is located within thecylindrical support 134 such that therotary shaft 112 of the motor passes through themotor mounting port 133 and is connected to theimpeller 14. A third damping structure is provided between thecylindrical support 134 and an outer wall of the cylindrical wall of the motormain body 117. Preferably, the third damping structure is asecond sealing ring 135 provided at an end or an inner wall of thecylindrical support 134. When themotor 11 is located inside thecylindrical support 134, an elastic fit is formed between thesecond sealing ring 135 and the outer wall of the peripheral wall of the motormain body 117, such as to reduce vibration transferred by the motor to the volute. At the same time, it is also possible to form a sealing fit to close themotor mounting port 133, so as to effectuate sealing at themotor mounting port 133 and prevent that the efficiency of the volute motor is reduced by air leakage at the motor mounting port. Thesecond sealing ring 135 may be mounted on thecylindrical support 134, and may also be mounted at an outer periphery of the motormain body 117. Preferably, as shown inFigure 17 , thesecond sealing ring 135 is provided to be an annular structure having a U cross section, the opening of which is directed towards a free end of thecylindrical support 134 and mounted at a free end of thecylindrical support 134. The inner peripheral wall of thesecond sealing ring 135 abuts against the outer wall of the peripheral wall of the motormain body 117. Preferably, the inner periphery of the second sealing ring which is provided with a sealing lip extending towards the motor, may abut against the outer wall of the peripheral wall of the motormain body 117. Preferably, thevolute 13 is provided with a mountingseat 136, and thesupport disk 12 is connected to the mountingdisk 136 such as to be mounted to thefirst half 13. The lateral face of thesupport disc 12 opposite to thecylindrical seat 134 is pressed against thesecond sealing ring 135 to sandwich the second sealing ring between thesupport disk 12 and thecylindrical support 134, so as to better fix thesecond sealing ring 135. - Next, explanations are made to the mounting structure of the volute motor of the present embodiment. As shown in
Figure 14 , the mounting structure of the volute motor of the present embodiment comprises the aforementioned volute fan and mountingplate 4, in which the volute fan is mounted on the mountingplate 4, and the mounting plate is provided with a mountingplate air inlet 41. Thesecond half 15 is fixedly connected to the mountingplate 4 through a fastener such as a screw, a bolt and a rivet, thevolute air inlet 153 on thesecond half 15 is opposite to the mountingplate air inlet 41 on the mountingplate 4 in position, and themotor 11 and theimpeller 14 are both mounted to thefirst half 14. Thefirst half 13 mounted with themotor 11 and theimpeller 14 is connected to thesecond half 15 such as to mount the volute fan to the mountingplate 4. - Next, detailed explanations are made to the specific assembling manner of the aforementioned volute fan and mounting
plate 4. - When the volute fan is fixed to the mounting
plate 4, there comprise the following steps: - Step I:
Thesecond half 15 is connected to the mountingplate 4. Preferably, thesecond half sidewall 152 is connected to the mountingplate 4 through a fastener, and the second halfperipheral wall 151 is located at one side of thesecond half sidewall 152 away from the mountingplate 4. The fastener may use a connection piece such as a screw and a rivet. - Step II: the
motor 11 and theimpeller 14 are connected to thefirst half 13. There specifically comprise two manners:- Manner 1:
Thesupport disk 12 is fixed to thefirst half 13; therotary shaft 112 of themotor 11 passes through themotor mounting port 133 on thefirst half 13 and fixes themotor 11 on thesupport disk 12 so as to fix themotor 11 to thefirst half 13; and the rotarycircular plate 142 of theimpeller 14 is connected to therotary shaft 112 of themotor 11 so as to connect theimpeller 14 and the motor. - Or manner 2:
Themotor 11 is connected to thesupport disk 12; thesupport disk 12 together with themotor 11 are fixed to thefirst half 13, and therotary shaft 112 of themotor 11 passes through themotor mounting port 133 on thefirst half 13; the rotarycircular plate 142 of theimpeller 14 is connected to therotary shaft 112 of themotor 11 so as to connect theimpeller 14 and themotor 11.
- Manner 1:
- Step III, the
first half 13 mounted with themotor 11 and theimpeller 14 is connected to thesecond half 15, so as to integrally mount the volute fan to the mountingplate 4. - Among them, the sequence of the step I and the step II may be interchanged and may also be performed at the same time.
- Compared to the current volute fan structure, the
motor 11 and theimpeller 14 of the volute fan of the embodiment I are fully mounted on thefirst half 13, and integrally mounted with thefirst half 13 upon installation, so that the installation is more convenient. When it is necessary to perform such operations as repair, maintenance and replacement of themotor 11 or theimpeller 14, it is only necessary to remove thefirst half 13 together with themotor 11 and theimpeller 14 as a whole as well as thesecond half 15. It is necessary to remove thesecond volute 15, and it is also necessary to remove the mountingplate 4 so that there is a better overall maintenance. - Further, a common person skilled in the art should understand that, the drawings provided herein are for the purpose of description, and that the drawings are not necessarily delineated according to the scale.
- At the same time, it should be understood that, the exemplary embodiments are provided, so that the present disclosure is comprehensive, and its scope is adequately delivered to a person skilled in the art. Many specify details (for example examples of a specific member, device and method) are offered to provide a comprehensive understanding of the present disclosure. A person skilled in the art will understand that, it is necessary to use specific details, the embodiments may be implemented in many different forms, and the exemplary embodiments should not be understood to limit the scope of the present disclosure. In several exemplary embodiments, there are no detailed descriptions of the commonly known device structure and the commonly known art.
- When an element or layer is mentioned to be "on", "engaged to", "connected to" another element or layer, or "coupled to" another element or layer, it may be directly on another element or layer, directly engaged to, connected to or coupled to another element or layer, or may be present with an intermediate element or layer. By contrast, when an element is mentioned to be "directly" "on" another element or layer, "directly engaged to", "directly connected to" or "directly coupled to" another element or layer, there may not be present with an intermediate element or layer. Other expressions for describing relations among the elements may be explained in similar manners (for example "between" and "directly between", "adjacent to" and "directly adjacent to", and the like). As used herein, the term "and/or" comprises any one or all combinations of one or more related items as listed.
- Although the terms "first, second, third and the like" herein may be used to describe each element, member, area, layer and/or segment, such elements, parts, areas, layers and/or segments should not be limited by such terms. Such terms may only be used for differentiating an element, member, area, layer or segment from another element, area, layer or segment. The terms such as "first" and "second" and other value terms when used herein do not mean an order or sequence unless specifically specified in the context. Accordingly, the first element, member, area, layer or segment discussed below may be called as a second element, member, area, layer or segment, without departing from the teaching of the exemplary embodiments. Further, in the descriptions of the present invention, unless otherwise explained, the meaning of "a plurality of" is two or more.
- In order to facilitate the description, the relevant terms of space such as "within", "outside", "under", "below", "lower", "above" and "upper" herein are used to elaborate a relation between an element or feature and another element or feature as exemplified in the drawings. It will be understood that, the relevant terms of space may be intended to contain different orientations of the device in use or operation other than those illustrated in the drawings. For example, if the device in the drawings is overturned, the element described to be "below" or "under" other elements or features will be positioned "over" other elements or features. Thus, the exemplary term "below" can contain orientations both above and below. The device may be oriented in other manners (rotated by 90 degrees or located at other orientations), and the relevant description words of space used herein should be correspondingly explained.
- The foregoing is intended only as a preferred embodiment of the present invention, but is not used for limiting the present invention, and for a person skilled in the art, the present invention may have various modifications and variations. Any amendment, equivalent replacement, improvement, and the like within the spirit and principles of the present invention should all be contained within the protection scope of the present invention.
Claims (11)
- A volute fan combination structure, comprising:a mounting plate (4);at least two adjacent volute fans mounted on said mounting plate (4); andwherein one volute fan of the two adjacent volute fans has an intermediate inclined air outlet located between the two adjacent volute fans, said intermediate inclined air outlet extending along a direction away from said mounting plate (4).
- The volute fan combination structure according to claim 1, wherein the inner surface adjacent to said mounting plate (4) of said intermediate inclined air outlet representing a slope or camber, an extension of said slope or an extension of a tangent plane of said camber not intersecting with a volute of another volute fan adjacent to said intermediate inclined air outlet.
- The volute fan combination structure according to claim 1, comprising three volute fans (1, 2, 3) having a third volute fan (3), a second volute fan (2) and a first volute fan (1) provided in an upward sequence; said second volute fan(2) comprising second volute fan air outlets (28, 29) blowing air upwards and/ or blowing air downwards, said second volute fan air outlets (28, 29) extending along a direction away from said mounting plate (4).
- The volute fan combination structure according to claim 3, wherein the inner surface adjacent to said mounting plate (4) of said second volute fan air outlets (28,29) representing a slope or camber, an extension of a corresponding slope or an extension of a tangent plane of an camber not intersecting with a volute of the first volute fan or the third volute fan opposite to said second volute fan said air outlets (28,29).
- The volute fan combination structure according to claim 3, wherein,
said first volute fan (1) comprising a first volute fan air outlet (18) blowing air upwards;
said third volute fan (3) comprising a third volute fan air outlet (39) blowing air downwards; and
said second volute fan air outlet comprising a second volute fan first air outlet (28) blowing air upwards and a second volute fan second air outlet (29) blowing air downwards. - The volute fan combination structure according to claim 5, wherein,
the inner surface (282) adjacent to said mounting plate (4) of said second volute fan first air outlet (28) representing a slope or camber, an extension of said slope or an extension (2821) of a tangent plane of the camber not intersecting with a volute of the first volute fan (1); and
the inner surface (292) adjacent to said mounting plate (4) of said second volute fan second air outlet (29) representing a slope or camber, an extension of said slope or an extension (2921) of a tangent plane of the camber not intersecting with a volute of the third volute fan (3). - The volute fan combination structure according to claim 6, wherein,
a first deflector (280) parallel to said mounting plate (4) provided at least on a wall away from said mounting plate (4) of said second volute fan first air outlet (28); and/or
a second deflector (290) parallel to said mounting plate (4) provided at least on a wall away from said mounting plate (4) of second volute fan second air outlet (29). - The volute fan combination structure according to claim 7, wherein said first deflector (280) comprising a sleeve extending upwards, and said second deflector (290) comprising a sleeve extending downwards.
- The volute fan combination structure according to claim 3, wherein said second volute fan (2) is further away from said mounting plate (4) than said first volute fan (1) and said third volute fan (3) .
- The volute fan combination structure according to claim 9, wherein said mounting plate (4) is provided with a first fan mounting portion (41), a second fan mounting portion (42) and a third volute fan mounting portion (43) for respectively mounting the first volute fan (1), the second volute fan (2) and the third volute fan (3) correspondingly, and
wherein said second fan mounting portion is disposed such as to project towards the front of said mounting plate (4) and forward of said first fan mounting portion (41) and said third fan mounting portion (43). - A vertical air conditioner, comprising:a housing provided with a top air outlet located at a top thereof and a bottom air outlet located at a bottom thereof;a main body air duct provided within the housing, said main body air duct respectively communicating with said top air outlet and said bottom air outlet, andsaid volute fan combination structure according to claim 1, said volute fan combination structure is provided within said housing and blows air towards said top air outlet and/or said bottom air outlet through said main body air duct.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510579262.2A CN105156344B (en) | 2015-09-11 | 2015-09-11 | Vertical air conditioner |
PCT/CN2016/098203 WO2017041695A1 (en) | 2015-09-11 | 2016-09-06 | Volute fan assembly structure and floor-standing air conditioner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3348840A1 true EP3348840A1 (en) | 2018-07-18 |
EP3348840A4 EP3348840A4 (en) | 2019-06-12 |
EP3348840B1 EP3348840B1 (en) | 2022-03-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16843633.5A Active EP3348840B1 (en) | 2015-09-11 | 2016-09-06 | Volute fan assembly structure and floor-standing air conditioner |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3348840B1 (en) |
JP (2) | JP2018532059A (en) |
KR (1) | KR20180008722A (en) |
CN (1) | CN105156344B (en) |
ES (1) | ES2914227T3 (en) |
WO (1) | WO2017041695A1 (en) |
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EP3879118A1 (en) * | 2020-03-11 | 2021-09-15 | LG Electronics Inc. | Blower |
WO2024015994A1 (en) * | 2022-07-15 | 2024-01-18 | Greenheck Fan Corporation | Fan assembly |
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2015
- 2015-09-11 CN CN201510579262.2A patent/CN105156344B/en active Active
-
2016
- 2016-09-06 WO PCT/CN2016/098203 patent/WO2017041695A1/en active Application Filing
- 2016-09-06 EP EP16843633.5A patent/EP3348840B1/en active Active
- 2016-09-06 ES ES16843633T patent/ES2914227T3/en active Active
- 2016-09-06 JP JP2017566146A patent/JP2018532059A/en active Pending
- 2016-09-06 KR KR1020177036311A patent/KR20180008722A/en not_active Application Discontinuation
-
2019
- 2019-12-26 JP JP2019004940U patent/JP3225968U/en active Active
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WO2024015994A1 (en) * | 2022-07-15 | 2024-01-18 | Greenheck Fan Corporation | Fan assembly |
Also Published As
Publication number | Publication date |
---|---|
KR20180008722A (en) | 2018-01-24 |
JP2018532059A (en) | 2018-11-01 |
EP3348840B1 (en) | 2022-03-16 |
CN105156344A (en) | 2015-12-16 |
JP3225968U (en) | 2020-04-16 |
EP3348840A4 (en) | 2019-06-12 |
ES2914227T3 (en) | 2022-06-08 |
CN105156344B (en) | 2018-06-22 |
WO2017041695A1 (en) | 2017-03-16 |
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