CN207920972U - Centrifugal blower and air-conditioning device - Google Patents
Centrifugal blower and air-conditioning device Download PDFInfo
- Publication number
- CN207920972U CN207920972U CN201690000628.4U CN201690000628U CN207920972U CN 207920972 U CN207920972 U CN 207920972U CN 201690000628 U CN201690000628 U CN 201690000628U CN 207920972 U CN207920972 U CN 207920972U
- Authority
- CN
- China
- Prior art keywords
- centrifugal blower
- bellmouth
- flange part
- cylindrical portion
- wall portion
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides centrifugal blower and air-conditioning device, the centrifugal blower have turbofan and bellmouth, and bellmouth includes：Flange part orthogonally extends with the rotary axis direction of turbofan；Cylindrical portion extends from flange part along rotary axis direction, which there are multiple wall portions, the peripheral surface of they and flange part and cylindrical portion to link and erect, and multiple wall portions include the group of multigroup more than two wall portions extended in parallel to each other to the outside direction of cylindrical portion.
Description
Technical field
The utility model is related to have centrifugal blower, air-conditioning device and the centrifugal blower of multiple wall portions in socket
Manufacturing method, the peripheral surface of the wall portion and flange part and tubular links and erects.
Background technology
In the indoor unit using the air-conditioning device of centrifugal blower, if fan motor carries out driving to which turbofan is revolved
Turn, then sucks air from the suction inlet of the indoor unit of air-conditioning device to the inside of the indoor unit of air-conditioning device.It is drawn into air-conditioning dress
The air of the inside for the indoor unit set is guided from bellmouth to the air suction inlet of the shield of turbofan.
Hereinafter, the air stream for the air suction inlet for being directed to shield by bellmouth is known as mainstream.
The mainstream is conveyed by the wing of turbofan to the radial outside of turbofan.It is delivered to the radial direction of turbofan
The major part of the air in outside, the blow-off outlet of the indoor unit by air-conditioning device and the outside of the indoor unit to air-conditioning device are blown
Go out.On the other hand, it is delivered to a part for the air of the radial outside of turbofan, by shield in the indoor unit of air-conditioning device
Space between the peripheral surface and indoor unit casing of cover and flow back to the radial outside of bellmouth, and by between bellmouth and shield
Collaborate again with mainstream in gap.
Hereinafter, by it is above-mentioned it is such flow back, and claim with the air stream at mainstream interflow by the gap between bellmouth and shield
For leakage current.
The leakage current is influenced by generating due to the rotation because of turbofan to circumferential air stream, along from turbofan
It is axial to be flowed to the direction of peripheral, oblique.On the other hand, the air of the mainstream of the air suction inlet of shield is directed to by bellmouth, it is main
It to be flowed to the direction of the rotary shaft along turbofan.In this way, near the air suction inlet at leakage current and mainstream interflow, leakage
It flows and differs widely with the flow direction of mainstream.If therefore leakage current collaborates with mainstream, mainstream multilated so that fan efficiency drops
It is low, and noise penalty.
In the past, it in order to inhibit the efficiency reduction and noise penalty of turbofan, proposes in the periphery of the suction inlet of bellmouth
The circumferentially arranged multiple technologies with the diametrically substantially parallel wall portion of bellmouth in face (for example, referring to patent document 1).
According to the technology of patent document 1, multiple wall portions guide leakage currents, and the direction of leakage current is close to the direction of mainstream.Thus exist
When leakage current collaborates with mainstream, the upset of mainstream can be inhibited.
Patent document 1：Japanese Unexamined Patent Publication 2012-211574 bulletins
However, in the technology of patent document 1, due to the restriction in bellmouth forming, multiple wall portions can not be formed compared with
Greatly.Therefore the project of fan efficiency reduction and noise penalty can less be inhibited by existing.
If in addition, in order to multiple wall portions are formed larger and by multiple wall portions it is seperated with bellmouth formed, increase
Adding makes multiple wall portions and the integrated process of bellmouth etc..Alternatively, if multiple larger wall portions are formed with, to multiple wall portions
The finishing die that is formed of bellmouth can complicate, stripping operation becomes difficult, and the bellmouth of forming easy tos produce defect.Therefore it deposits
In the project that manufacture efficiency deteriorates.
Utility model content
For the utility model for solving the above subject, its purpose is to provide can further suppress the wind caused by leakage current
Efficiency reduction and noise penalty are fanned, and centrifugal blower, air-conditioning device and the centrifugation air-supply of manufacture efficiency can be improved
The manufacturing method of machine.
The centrifugal blower of the utility model has：Turbofan comprising：The circular mainboard being driven in rotation；Shield
Cover, the shield is arranged opposite with the mainboard and is circular air suction inlet with opening；Multiple wings, the multiple wing from
The mainboard between the shield along the circumferential direction of the mainboard it is spaced apart configure；Bellmouth is configured in the turbine wind
Around fan, the bellmouth includes：Flange part orthogonally extends with the rotary axis direction of the turbofan；Cylindrical portion,
Extend from the flange part along the rotary axis direction, the bellmouth has multiple wall portions, the multiple wall portion and the flange
The peripheral surface of portion and the cylindrical portion links and erects, and the multiple wall portion includes multigroup in parallel to each other to the cylindrical portion
Outside direction extend more than two wall portions group.
Preferably, the group of the multiple wall portion is configured in circumferentially spaced 90 ° of the position of the cylindrical portion.
Preferably, the flange part is rectangle, and the group of the wall portion is set to four of the flange part as rectangle
The central portion of any side in side.
Preferably, the flange part has the convex region for being embedded in electrical appliance kit, and the multiple wall portion, which is not formed in, to be had
The region on the side of the flange part in the convex region.
Preferably, the multiple wall portion is the shape for making axial edge portions intersect with longitudinal edge edge, the axial direction respectively
Edge part extends from the flange part along the rotary axis direction, the longitudinal edge edge and the positive intersecting and merging of the rotary axis direction
The cylindrical portion is leaned on from the periphery of the cylindrical portion towards the outer diameter than the air suction inlet possessed by the shield
Radial outside extend.
Preferably, the bellmouth is made by integrally formed.
The air-conditioning device of the utility model has above-mentioned centrifugal blower.
The manufacturing method of the centrifugal blower of the utility model is the manufacturing method of above-mentioned centrifugal blower, makes the wall
More than two wall portions described in the group in portion extend to the outside direction of the cylindrical portion and are formed in parallel to each other, the cylindrical portion
Outside direction is consistent with the glide direction of the mold sliding used in the forming of the bellmouth.
The manufacturing method of centrifugal blower according to the present utility model, air-conditioning device and centrifugal blower, multiple wall portions
Include the group of multigroup more than two wall portions extended in parallel to each other to the outside direction of cylindrical portion.Thus larger wall portion can be held
It changes places to be formed.Therefore fan efficiency reduction and noise penalty caused by leakage current can be further suppressed, so as to improve
Manufacture efficiency.
Description of the drawings
Fig. 1 is a left side for the ceiling-mounted-in type indoor unit for the centrifugal blower for indicating the embodiment 1 using the utility model
The definition graph of half side section.
Fig. 2 is the stereogram of the turbofan of the centrifugal blower for the embodiment 1 for indicating the utility model.
Fig. 3 is the stereogram of the front surface of the bellmouth of the centrifugal blower for the embodiment 1 for indicating the utility model.
Fig. 4 is the stereogram at the back side of the bellmouth of the centrifugal blower for the embodiment 1 for indicating the utility model.
Fig. 5 is the side view of the bellmouth of the centrifugal blower for the embodiment 1 for indicating the utility model.
Fig. 6 is the rearview of the bellmouth of the centrifugal blower for the embodiment 1 for indicating the utility model.
Fig. 7 is the solid of the bellmouth of the centrifugal blower for the embodiment 1 for indicating the utility model and the relationship of finishing die
Figure.
Fig. 8 is the shield and bellmouth of the turbofan in the centrifugal blower for the embodiment 1 for indicating the utility model
The definition graph of position relationship and mainstream and leakage current.
Fig. 9 is the schematic structural diagram of the air-conditioning device for the embodiment 2 for indicating the utility model.
Specific implementation mode
Hereinafter, being illustrated to the embodiment of the utility model based on attached drawing.
In addition, the component for marking identical reference numeral in the various figures is identical or comparable component therewith, this is illustrating
It is common in book full text.
In addition, the form of inscape shown in specification full text only illustrates, it is not limited to above-mentioned record.
Embodiment 1
[structure of ceiling-mounted-in type indoor unit]
Fig. 1 is the ceiling-mounted-in type indoor unit 2 for the centrifugal blower 1 for indicating the embodiment 1 using the utility model
The definition graph of left half side section.
As shown in Figure 1, ceiling-mounted-in type indoor unit 2 buries the inboard for being set to the top as ceiling.It is ceiling-mounted-in type
Opening portion periphery of the indoor unit 2 from lower surface opening portion to ceiling, is equipped with the decorative panel 3 of rectangle.Ceiling-mounted-in type indoor unit 2
Have centrifugal blower 1 and heat exchanger 5 etc. in main body shell 4.
Centrifugal blower 1 has：Turbofan 6, bellmouth 7 and fan motor 8.Centrifugal blower 1 is set to body shell
Center in body 4.
Fan motor 8 is fixed on the center of the top surface of main body shell 4.Central part is installed on fan motor 8 by turbofan 6
Rotary shaft 9, and by fan motor 8 rotate drive.
Bellmouth 7 is installed on the downside of turbofan 6.
In addition, hereinafter, air will be sucked from the bellmouth 7 covered by decorative panel 3 by the rotation of turbofan 6
Lower section is known as front F.In addition, relative to the front F as lower section, top is known as rear R.
If the driving of fan motor 8 and so that turbofan 6 is rotated, by air from being set to ceiling-mounted-in type indoor unit 2
The suction inlet of the central portion of front F is drawn into the inside of the ceiling-mounted-in type indoor unit 2 of rear R.It is drawn into ceiling-mounted-in type room
Air inside interior machine 2 is guided from bellmouth 7 to the air suction inlet 11 of the shield 10 of turbofan 6.It is directed to turbofan 6
Shield 10 air suction inlet 11 air, from the wing 12 of turbofan 6 to the radial outside of turbofan 6 convey.Conveying
Air to the radial outside of turbofan 6 passes through in the heat exchanger 5 arranged side by side of the horizontal direction along turbofan 6.It is logical
The air of over-heat-exchanger 5 carries out heat exchange with the refrigerant flowed in heat exchanger 5.Tempered air after heat exchange to
Heat exchanger 5 than ceiling-mounted-in type indoor unit 2 is conveyed by the radial outside of turbofan 6.Moreover, tempered air passes through ceiling
The outlet 13 of outer lower portion in the main body shell 4 of flush type indoor unit 2, and to indoor ceiling-embedded as air-conditioning object
The external blowout of the front F of formula indoor unit 2.
[structure of turbofan]
Fig. 2 is the stereogram of the turbofan 6 of the centrifugal blower 1 for the embodiment 1 for indicating the utility model.In addition
Fig. 2 is the figures of front F upward.
As shown in Fig. 2, turbofan 6 be configured to include：Mainboard 14, shield 10 and multiple wings 12.
Mainboard 14 is circle, is fixed on the rotary shaft 9 extended to the front F of fan motor 8, is rotated and drives by fan motor 8
It is dynamic.
Shield 10 has air suction inlet 11, and the air suction inlet 11 and mainboard 14 are arranged opposite, with the rotation of turbofan 6
It is open centered on shaft as circle.
Multiple wings 12 along mainboard 14 circumferential direction it is spaced apart configure from mainboard 14 to shield 10.
[structure of bellmouth]
Fig. 3 is the stereogram of the front surface of the bellmouth 7 of the centrifugal blower 1 for the embodiment 1 for indicating the utility model.Figure
4 be the stereogram at the back side of the bellmouth 7 of the centrifugal blower 1 for the embodiment 1 for indicating the utility model.Fig. 5 is to indicate this reality
With the side view of the bellmouth 7 of the centrifugal blower 1 of novel embodiment 1.Fig. 6 is the embodiment 1 for indicating the utility model
Centrifugal blower 1 bellmouth 7 rearview.In addition, Fig. 3 is the figures of front F upward.Fig. 4 is front F figures directed downwardly.
Back to Fig. 1, as shown in Figure 1, bellmouth 7 configures around turbofan 6, and configures and leaning on turbine than shield 10
The front F of the axial A of the rotary shaft of fan 6.
As shown in Fig. 3~Fig. 6, bellmouth 7 is configured to include flange part 15 and cylindrical portion 16.
Flange part 15 is the plate of rectangle, has four edges 17a, 17b, 17c, 17d as edge part.Flange part 15
The front F in the axial A of the rotary shaft of turbofan 6 is configured, and is orthogonally extended with the axial A of the rotary shaft of turbofan 6.
In other words, flange part 15 is the position stretched out from the peripheral part of the front F of cylindrical portion 16 to the radial outside of cylindrical portion 16.
As shown in Fig. 3, Fig. 4, Fig. 6, flange part 15 has the convex region 18 for being embedded in electrical appliance kit.
The back side of rear R of axial A of rotary shaft of turbofan 6 of the convex region 18 into flange part 15 is prominent.It is convex
Shape region 18 is substantially rectangular, the circumferential section with a part for cylindrical portion 16 along the side 17d of a part for flange part 15
It is adjacent and rearward R protrude.
As shown in Fig. 3~Fig. 6, central portion rotation from from flange part 15 to turbofan 6 of the cylindrical portion 16 in flange part 15
The rear R openings of the axial A of axis are circle.
As shown in figure 5, cylindrical portion 16 is configured to include reducing diameter part 19 and wide diameter portion 20.
Reducing diameter part 19 subtracts with from the peripheral part for the front F being connect with flange part 15 towards rear R, internal diameter and outer diameter
It is small.
Wide diameter portion 20 is continuous from reducing diameter part 19 to the rear R of the axial A for the rotary shaft for leaning on turbofan 6 than reducing diameter part 19,
And increase towards rear R, internal diameter and outer diameter with from the continuous front F of reducing diameter part 19.
Openings 21 are formed in the inside of reducing diameter part 19 and wide diameter portion 20, rotation of the openings 21 along turbofan 6
The front-rear direction of the axial A of shaft penetrates through.
In as be described hereinafter shown in Fig. 8 for using, air suction inlet that wide diameter portion 20 is constituted in the shield 10 with turbofan 6
In the state of gap as defined in being provided between 11 peripheral part, the inside of shield 10 is inserted into from air suction inlet 11.As a result,
Bellmouth 7 guides the air sucked from front F towards rear R by openings 21 to the air suction inlet 11 of shield 10.
As shown in Fig. 4~Fig. 6, bellmouth 7 has：Multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h, it
Link with the peripheral surface of the back side of the rear R of the axial A of the rotary shaft of the turbofan 6 of flange part 15 and cylindrical portion 16
And it erects.
Wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h so that plate face substantially in parallel along turbofan 6
The mode of the axial A of rotary shaft extends from the front F of the axial A of the rotary shaft of turbofan 6 towards rear R.
In addition, wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h in the forming of aftermentioned bellmouth 7 to use
Any of first~third sliding mould 27a, 27b, 27c the glide direction B mono- radially slided along cylindrical portion 16
The mode of cause extends.
In other words, multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h include three groups in parallel to each other to cylinder
More than two wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h that the outside direction in shape portion 16 extends.
That is, the direction that more than two wall portions extend parallel to each other in one group of wall portion, uses in the forming of bellmouth 7
Sliding mould sliding glide direction it is consistent, be not limited to the radial direction of cylindrical portion 16.
Multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h, with aftermentioned first~third sliding mould
A correspondence in 27a, 27b, 27c and to be formed at least two at a line 17a, 17b, 17c of the flange part 15 of rectangle
More than.
At least two wall portion 22a for being formed at a line 17a, 17b, 17c as the flange part 15 of rectangle,
22b, 22c, 22d, 22e, 22f, 22g, 22h, radially extending to the cylindrical portion 16 consistent with glide direction B in parallel to each other,
Glide direction B be in aftermentioned first~third sliding mould 27a, 27b, 27c corresponding mold along the radial direction of cylindrical portion 16
The direction of sliding.
Specifically, the group of three wall portions 22a, 22b, the 22c formed at the side 17a of flange part 15, in parallel to each other
Consistently extend with the glide direction B radially slided along cylindrical portion 16 of aftermentioned first sliding mould 27a.Relative to convex
Two wall portions of edge 15 formed at 17b in the configuration of circumferentially apart 90 ° of the position of cylindrical portion 16 in 17a
The group of 22d, 22e, in parallel to each other with aftermentioned second sliding mould 27b along the sliding side of cylindrical portion 16 radially slided
Consistently extend to B.In the side 17b relative to flange part 15 in the configuration of circumferentially apart 90 ° of the position of cylindrical portion 16
The group of three wall portions 22f, 22g, 22h being formed at the 17c of side, in parallel to each other with the edge of aftermentioned third sliding mould 27c cylinder
The glide direction B radially slided in shape portion 16 consistently extends.
As long as being mutually parallel in addition, wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h are constituted with 2 or more number
The group for the wall portion that ground extends.
Such as Fig. 4, Fig. 5 and shown in aftermentioned middle Fig. 8 used, wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g,
22h is that axial edge portions 23 is made to show the decussate shape with larger surface area greatly with longitudinal edge edge 24.
Axial edge portions 23 are from the back side of the rear R of the axial A of the rotary shaft of the turbofan 6 of flange part 15, along whirlpool
It takes turns the axial A of the rotary shaft of fan 6 and rearward extends as the crow flies.
Cylindrical portion is leaned in longitudinal edge edge 24 from the periphery of the reducing diameter part 19 of cylindrical portion 16 towards the outer diameter than shield 10
16 radial outside, it is orthogonal with the axial A of the rotary shaft of turbofan 6 and extend as the crow flies.
In addition, wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h are not limited to the shape.Wall portion 22a, 22b,
As long as 22c, 22d, 22e, 22f, 22g, 22h can utilize the finishing die 25 that is used in the forming of aftermentioned bellmouth 7 by surface
Product shapes larger, then can be any shape.
[structure of bellmouth and finishing die]
Fig. 7 is the relationship of the bellmouth 7 and finishing die 25 of the centrifugal blower 1 for the embodiment 1 for indicating the utility model
Stereogram.
As shown in fig. 7, bellmouth 7 is made by integrally formed.That is, including flange part 15, cylindrical portion 16 and multiple walls
The bellmouth 7 of portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h, are made by integrally formed.
In the figure 7, as by the finishing die 25 of the back-welding shape of the rear R of bellmouth 7, show multiple mold 26a, 26b,
26c、26d、27a、27b、27c、27d。
As the mold used in the forming of bellmouth 7, have the first corner mold 26a, the second corner mold 26b,
Triangular part mold 26c and fourth angle portion mold 26d.First~fourth angle portion mold 26a, 26b, 26c, 26d are by flange part 15
Four corners forming.First~fourth angle portion mold 26a, 26b, 26c, 26d are shaped with by the front surface of the front F of bellmouth 7
Finishing die (not shown), along the longitudinal direction mold and mold.
As the mold used in the forming of bellmouth 7, have the first sliding mould 27a, the second sliding mould 27b,
Three sliding mould 27c and the 4th sliding mould 27d.First~the 4th sliding mould 27a, 27b, 27c, 27d is along cylindrical portion 16
It is circumferentially-spaced 90 ° setting there are four.First~the 4th sliding mould 27a, 27b, 27c, 27d is in first~fourth angle portion mold
The central portion of each side 17a, 17b, 17c, 17d of the flange part 15 as rectangle between 26a, 26b, 26c, 26d, along tubular
The radial direction (glide direction B) in portion 16 is slidably molded and is molded.First~the 4th sliding mould 27a, 27b, 27c, 27d is by cylinder
The outer circumferential surface section in shape portion 16 is divided into the forming of four parts.
Here, as shown in fig. 7, in first~third sliding mould 27a, 27b, 27c, according to item number corresponding with wall portion number
It is formed with the slit 28 as hollow portion, for shaping multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h.It is narrow
The radial parallel landform for the cylindrical portion 16 that seam 28 is slided when respectively being molded along first~third sliding mould 27a, 27b, 27c
It is elongated at obtaining.First~third sliding mould 27a, 27b, 27c are respectively formed at least two slit 28.
As a result, as shown in fig. 6, wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h are configured to：With in bellmouth 7
The radially sliding along cylindrical portion 16 of any of first~third sliding mould 27a, 27b, 27c for being used in forming
Glide direction B is substantially parallel.Therefore, wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h and glide direction B consistently prolong
Stretch, glide direction B with and the corresponding flange as rectangle of any of first~third sliding mould 27a, 27b, 27c
Side 17a, 17b, the 17c in portion 15 are orthogonal.
Wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h being shaped so as to, in first~third sliding mould
When 27a, 27b, 27c are molded along glide direction B slidings, the sliding of first~third sliding mould 27a, 27b, 27c is not hindered.
Moreover, the release property of wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h are good, wall portion 22a, 22b, 22c, 22d,
It is difficult to generate undesirable condition when the forming of 22e, 22f, 22g, 22h.
[mainstream and the summary of leakage current]
Fig. 8 is the shield 10 and bellmouth of the turbofan 6 of the centrifugal blower 1 for the embodiment 1 for indicating the utility model
7 position relationship and the definition graph of mainstream S and leakage current M.
As shown in figure 8, bellmouth 7 has multiple larger wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h.Cause
This, the direction of the leakage current M before collaborating with mainstream S near air suction inlet 11 is turbofan 6 by rectification better
Rotary shaft axial A.The direction of mainstream S and leakage current M are close as a result, in leakage current M from the peripheral surface and shield 10 of wide diameter portion 20
Inner peripheral surface gap and when the interflow mainstream S, reduce the degree of leakage current M and mainstream interference.Therefore, it is possible to inhibit to draw because of leakage current M
The fan efficiency risen reduces and noise penalty.
[effect of embodiment 1]
According to embodiment 1, centrifugal blower 1 has turbofan 6, which includes：The circle being driven in rotation
It is the mainboard 14 of shape, arranged opposite with mainboard 14 and with the shield 10 that opening is circular air suction inlet 11 and from master
Plate 14 arrive shield 10 between along mainboard 14 circumferential direction configuration spaced apart multiple wings 12.Centrifugal blower 1 has configuration in whirlpool
Take turns the bellmouth 7 around fan 6.Bellmouth 7 includes：Flange part 15, axial (the rotary shaft sides A with the rotary shaft of turbofan 6
To) orthogonally extend；Cylindrical portion 16, from flange part 15, A extends in an axial direction.Bellmouth 7 have multiple wall portion 22a, 22b, 22c,
The peripheral surface of 22d, 22e, 22f, 22g, 22h, they and flange part 15 and cylindrical portion 16 link and erect.Multiple wall portion 22a,
22b, 22c, 22d, 22e, 22f, 22g, 22h include multigroup two extended in parallel to each other to the outside direction of cylindrical portion 16 with
The group of upper wall portions 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h.
According to the structure, be able to easily form when bellmouth 7 shapes larger wall portion 22a, 22b, 22c, 22d, 22e,
22f、22g、22h.Thus larger wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h can will be in air suction inlets
Rectification is axial direction A better in the direction of the 11 leakage current M nearby and before the interflow mainstream S.Therefore, the direction of mainstream S and leakage current M
It is close, when leakage current M and mainstream S collaborate, reduce the degree of leakage current M and mainstream S interference.Therefore, it is possible to further suppress because of leakage
Flow fan efficiency reduction and noise penalty caused by M.
In addition, larger wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h can make in the forming of bellmouth 7
The glide direction B of first~third sliding mould 27a, 27b, 27c slided to the outside direction of cylindrical portion 16 consistently prolongs
It stretches.Therefore, even if multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h and bellmouth 7 are integrally formed together, wall portion
22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h are also easy demoulding, 25 uncomplicatedization of finishing die.Therefore manufacture can be improved
Efficiency.
According to embodiment 1, the group of multigroup wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h, in cylindrical portion 16
Circumferentially apart 90 ° of position configuration.
According to the structure, multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h can will be in air suction inlets
Rectification is axial direction A better in the direction of the 11 leakage current M nearby and before the interflow mainstream S.
According to embodiment 1, flange part 15 is rectangle.The group of wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h
It is arranged in any side 17a, 17b, 17c, 17d in four edges 17a, 17b, 17c, 17d as the flange part 15 of rectangle
Centre portion.
According to the structure, it is intended to towards four angles of the flange part 15 of rectangle and along the axial direction of the rotary shaft from turbofan 6
The leakage current that A is largely flowed into the direction of peripheral, oblique, in the central portion of each side 17a, 17b, 17c of the flange part 15 as rectangle
It is blocked by wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h and weakens the impetus.In addition, multiple wall portion 22a, 22b,
22c, 22d, 22e, 22f, 22g, 22h with 2 or more quantity configuration in each side 17a, 17b, 17c, to weaken the impetus of leakage current
Effect it is larger.Therefore, multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h can will be in air suction inlets 11
Nearby rectification is axial direction A better with the direction of the leakage current M before the interflow mainstream S.
According to embodiment 1, flange part 15 has the convex region 18 for being embedded in electrical appliance kit.Multiple wall portion 22a, 22b,
22c, 22d, 22e, 22f, 22g, 22h are not formed at the region of the side 17d of the flange part 15 with convex region 18.
According to the structure, convex region 18 hinders leakage current.Even if do not formed as a result, multiple wall portion 22a, 22b, 22c,
22d, 22e, 22f, 22g, 22h, it is also difficult to be influenced by leakage current M.
According to embodiment 1, multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h are respectively to make axial side
The shape that edge 23 intersects with longitudinal edge edge 24, from flange part 15, A extends the axial edge portions 23 in an axial direction, the radial direction
Edge part 24 and axial direction A is orthogonally from the periphery in cylindrical portion 16 towards the outer diameter than air suction inlet 11 possessed by shield 10
Size extends by the radial outside of cylindrical portion 16.
According to the structure, can to leakage current M rectifications and the good larger wall portion 22a, 22b of release property, 22c, 22d,
22e, 22f, 22g, 22h, can be integrally formed together with bellmouth 7.
According to embodiment 1, bellmouth 7 is made by integrally formed.
According to the structure, multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h and bellmouth 7 are integrally formed, energy
Enough improve manufacture efficiency.
According to embodiment 1, the manufacturing method of centrifugal blower 1 make wall portion 22a, 22b, 22c, 22d, 22e, 22f,
Described two above wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h in the group of 22g, 22h, in parallel to each other
The cylinder consistent to the glide direction B slided with first~third sliding mould 27a, 27b, the 27c used in the forming of bellmouth 7
The outside direction in shape portion 16 extends and is formed.
According to the structure, multiple wall portion 22a, 22b, 22c, 22d, 22e, 22f, 22g, 22h and bellmouth 7 are integrally formed, energy
Enough improve manufacture efficiency.
Embodiment 2
[structure of air-conditioning device]
Fig. 9 is the schematic structural diagram of the air-conditioning device 100 for the embodiment 2 for indicating the utility model.In addition, in fig.9,
The flowing of refrigerant is indicated with solid arrow when refrigeration operation, when heating operation the flowing of refrigerant indicated with dotted arrow.Separately
Outside, only the structural relation of refrigerant circulation loop determines in fig.9, the actual configuration relation waited up and down of constitution equipment
And it does not know.
As shown in figure 9, air-conditioning device 100 has：Compressor 101, four-way valve 102, heat source side heat exchanger 103, throttling
The heat exchanger 5 illustrated in device 104 and load-side heat exchanger that is, embodiment 1.Air-conditioning device 100 has：To heat
The centrifugation illustrated in the embodiment 1 that the heat source side pressure fan 106 and heat exchanger 5 that source heat exchanger 103 is blown are blown
Pressure fan 1.Air-conditioning device 100 has：The piping 108,109 that ceiling-mounted-in type indoor unit 2 is connect with outdoor unit.Air-conditioning device
100 have the control device 110,111 of the various movable members of control air-conditioning device 100.
In air-conditioning device 100, with refrigerant piping by compressor 101, four-way valve 102, heat source side heat exchanger 103,
Throttling set 104 and heat exchanger 5 connect, and refrigerant circulation loop is consequently formed.
In control device 110,111, such as by compressor 101, four-way valve 102, throttling set 104, heat source Lateral supply
Machine 106, centrifugal blower 1 and various sensors etc. are connected via communication line.
Switch the flow path of four-way valve 102 by control device 110,111, thus switches refrigeration operation and heating operation.Heat
Source heat exchanger 103 plays a role in refrigeration operation as condenser, plays a role as evaporator in heating operation.
Heat exchanger 5 plays a role in refrigeration operation as evaporator, plays a role as condenser in heating operation.
[flowing of refrigerant when refrigeration operation]
The refrigerant of the gaseous state for the high pressure-temperature being discharged from compressor 101, heat source is flowed into via four-way valve 102
Side heat exchanger 103.Be flowed into the refrigerant of heat source side heat exchanger 103 by with supplied by heat source side pressure fan 106 it is outer
The heat exchange of portion's air and condense, thus become high pressure liquid condition refrigerant, and from heat source side heat exchanger 103 flow
Go out.The refrigerant of the liquid condition of the high pressure flowed out from heat source side heat exchanger 103 is flowed into throttling set 104, becomes low pressure
Gas-liquid two-phase state refrigerant.The refrigerant of the gas-liquid two-phase state of the low pressure flowed out from throttling set 104 is flowed into heat
Exchanger 5 is evaporated by the heat exchange with the room air supplied by centrifugal blower 1, thus becomes the gas shape of low pressure
The refrigerant of state, and flowed out from heat exchanger 5.The refrigerant of the gaseous state of the low pressure flowed out from heat exchanger 5, via four-way
Valve 102 is sucked into compressor 101.
[flowing of refrigerant when heating operation]
The refrigerant of the gaseous state for the high pressure-temperature being discharged from compressor 101, heat is flowed into via four-way valve 102
Exchanger 5.The refrigerant for being flowed into heat exchanger 5 is cold by the heat exchange with the room air supplied by centrifugal blower 1
It is solidifying, thus become the refrigerant of the liquid condition of high pressure, and flow out from heat exchanger 5.The liquid of the high pressure flowed out from heat exchanger 5
The refrigerant of body state flows into throttling set 104, becomes the refrigerant of the gas-liquid two-phase state of low pressure.From throttling set 104
The refrigerant of the gas-liquid two-phase state of the low pressure of outflow flows into heat source side heat exchanger 103, by with by heat source side pressure fan
106 supply extraneous airs heat exchange and evaporate, thus become low pressure gaseous state refrigerant, and from heat source side heat hand over
Parallel operation 103 flows out.The refrigerant of the gaseous state of the low pressure flowed out from heat source side heat exchanger 103, is inhaled via four-way valve 102
Enter to compressor 101.
[effect of embodiment 2]
According to embodiment 2, air-conditioning device 100 has the centrifugal blower 1 of the above embodiment 1.
According to the structure, air-conditioning device 100 can further suppress fan efficiency reduction and noise caused by leakage current M
Deteriorate, so as to improve manufacture efficiency.
As described above, the embodiment as the utility model, exemplifies the centrifugal blower application of the utility model
In the ceiling-mounted-in type indoor unit of air-conditioning device the case where.However, the centrifugal blower of the utility model can also be in other classes
It is used in indoor unit or outdoor unit of the air-conditioning device of type etc..In addition, the centrifugal blower of the utility model can be used widely
The various equipment for having wind pushing mechanism other than air-conditioning device.
Reference sign：1... centrifugal blower；2... ceiling-mounted-in type indoor unit；3... decorative panel；4... main body
Shell；5... heat exchanger；6... turbofan；7... bellmouth；8... fan motor；9... rotary shaft；10... shield；
11... air suction inlet；12... the wing；13.. blow-off outlet；14... mainboard；15... flange part；16... cylindrical portion；17a...
Side；The sides 17b...；The sides 17c...；The sides 17d...；18... convex region；19... reducing diameter part；20... wide diameter portion；21... it passes through
Port；22a... wall portions；22b... wall portions；22c... wall portions；22d... wall portions；22e... wall portions；22f... wall portions；
22g... wall portions；22h... wall portions；23... axial edge portions；24... longitudinal edge edge；25... finishing die；26a... first
Corner mold；The second corners 26b... mold；26c... third corner molds；26d... fourth angles portion mold；27a... first
Sliding mould；The second sliding moulds of 27b...；27c... third sliding moulds；The 4th sliding moulds of 27d...；28... slit；
100... air-conditioning device；101... compressor；102... four-way valve；103... heat source side heat exchanger；104... throttling dress
It sets；106... heat source side pressure fan；108... piping；109... piping；110... control device；111... control device.
Claims (12)
1. a kind of centrifugal blower, which is characterized in that have：
Turbofan comprising：The circular mainboard being driven in rotation；Shield, the shield is arranged opposite with the mainboard and has
It is circular air suction inlet to have opening；Multiple wings, the multiple wing from the mainboard to the shield along the master
The circumferential direction of plate configures spaced apartly；With
Bellmouth configures around the turbofan,
The bellmouth includes：Flange part orthogonally extends with the rotary axis direction of the turbofan；Cylindrical portion, from institute
Flange part is stated along the rotary axis direction to extend, the bellmouth has multiple wall portions, the multiple wall portion and the flange part with
And the peripheral surface of the cylindrical portion links and erects,
The multiple wall portion includes the group of multigroup more than two wall portions extended in parallel to each other to the outside direction of the cylindrical portion.
2. centrifugal blower according to claim 1, which is characterized in that
The group of the multiple wall portion is configured in circumferentially spaced 90 ° of the position of the cylindrical portion.
3. centrifugal blower according to claim 2, which is characterized in that
The flange part is rectangle,
The group of the wall portion is set to the central portion of any side in the four edges as the flange part of rectangle.
4. centrifugal blower according to claim 3, which is characterized in that
The flange part has the convex region for being embedded in electrical appliance kit,
The multiple wall portion is not formed in the region on the side of the flange part with the convex region.
5. centrifugal blower according to claim 1 or 2, which is characterized in that
The multiple wall portion is the shape for making axial edge portions intersect with longitudinal edge edge respectively, and the axial edge portions are from described
Flange part extends along the rotary axis direction, and the longitudinal edge edge and the positive intersecting and merging of the rotary axis direction are from the cylindrical portion
Periphery prolong by the radial outside of the cylindrical portion towards the outer diameter than the air suction inlet possessed by the shield
It stretches.
6. centrifugal blower according to claim 3, which is characterized in that
The multiple wall portion is the shape for making axial edge portions intersect with longitudinal edge edge respectively, and the axial edge portions are from described
Flange part extends along the rotary axis direction, and the longitudinal edge edge and the positive intersecting and merging of the rotary axis direction are from the cylindrical portion
Periphery prolong by the radial outside of the cylindrical portion towards the outer diameter than the air suction inlet possessed by the shield
It stretches.
7. centrifugal blower according to claim 4, which is characterized in that
The multiple wall portion is the shape for making axial edge portions intersect with longitudinal edge edge respectively, and the axial edge portions are from described
Flange part extends along the rotary axis direction, and the longitudinal edge edge and the positive intersecting and merging of the rotary axis direction are from the cylindrical portion
Periphery prolong by the radial outside of the cylindrical portion towards the outer diameter than the air suction inlet possessed by the shield
It stretches.
8. centrifugal blower according to claim 1 or 2, which is characterized in that
The bellmouth is made by integrally formed.
9. centrifugal blower according to claim 3, which is characterized in that
The bellmouth is made by integrally formed.
10. centrifugal blower according to claim 4, which is characterized in that
The bellmouth is made by integrally formed.
11. centrifugal blower according to claim 5, which is characterized in that
The bellmouth is made by integrally formed.
12. a kind of air-conditioning device, which is characterized in that
Has the centrifugal blower described in any one of claim 1~11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/087763 WO2018116341A1 (en) | 2016-12-19 | 2016-12-19 | Centrifugal blower, air-conditioning device, and method for manufacturing centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207920972U true CN207920972U (en) | 2018-09-28 |
Family
ID=62627219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201690000628.4U Active CN207920972U (en) | 2016-12-19 | 2016-12-19 | Centrifugal blower and air-conditioning device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6739546B2 (en) |
| CN (1) | CN207920972U (en) |
| WO (1) | WO2018116341A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7275257B2 (en) * | 2019-05-10 | 2023-05-17 | 三菱電機株式会社 | air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5709607B2 (en) * | 2011-03-30 | 2015-04-30 | 三菱電機株式会社 | Fan guard, outdoor unit and refrigeration cycle apparatus |
| JP2012211576A (en) * | 2011-03-31 | 2012-11-01 | Daikin Industries Ltd | Centrifugal air blower and air conditioner with the same |
| JP6369684B2 (en) * | 2014-10-10 | 2018-08-08 | 株式会社富士通ゼネラル | Embedded ceiling air conditioner |
| JP2016188578A (en) * | 2015-03-30 | 2016-11-04 | パナソニックＩｐマネジメント株式会社 | Air blower |
-
2016
- 2016-12-19 JP JP2018557240A patent/JP6739546B2/en active Active
- 2016-12-19 WO PCT/JP2016/087763 patent/WO2018116341A1/en active Application Filing
- 2016-12-19 CN CN201690000628.4U patent/CN207920972U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018116341A1 (en) | 2018-06-28 |
| JP6739546B2 (en) | 2020-08-12 |
| JPWO2018116341A1 (en) | 2019-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203810563U (en) | Air-conditioner | |
| CN204693612U (en) | A kind of air-conditioning indoor host computer | |
| CN102422025B (en) | Centrifugal fan and air conditioner | |
| CN101240916B (en) | Air conditioner | |
| CN104411980A (en) | Centrifugal multi-blade blower | |
| CN104755848B (en) | Air conditioner | |
| CN104884872B (en) | Air-conditioning equipment | |
| CN104879846A (en) | Air conditioner | |
| CN107747763A (en) | Indoor apparatus of air conditioner | |
| CN104279193A (en) | Centrifugal blower and air conditioner using the same | |
| CN104764180B (en) | Guide vane and air-conditioning with the guide vane | |
| CN108800328A (en) | Cabinet type air conditioner indoor set | |
| CN105091110B (en) | A kind of wall hanging machine and conditioner | |
| CN105987022A (en) | Centrifugal fan and air conditioner having the same | |
| CN207920972U (en) | Centrifugal blower and air-conditioning device | |
| CN204227555U (en) | Air-conditioner | |
| CN207394969U (en) | The indoor unit of air conditioner | |
| CN104949198A (en) | Air conditioner | |
| CN108317605A (en) | A kind of wall-hung indoor unit of air conditioner | |
| CN107606703A (en) | Indoor apparatus of air conditioner | |
| CN204113749U (en) | Gas fan and refrigerating circulatory device | |
| CN204901955U (en) | Split -type air conditioner indoor set | |
| CN204227556U (en) | Air-conditioner | |
| CN205783340U (en) | Indoor apparatus of air conditioner and air-conditioner | |
| KR20090001371U (en) | Outdoor unit for air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |