CN207454386U - Turbofan and used the turbofan air conditioner indoor unit - Google Patents

Abstract

The utility model provides turbofan and has used the indoor unit of the air conditioner of the turbofan.Turbofan has：Disk-shaped mainboard, the mainboard are rotated by driving；Circular shield, the shield and mainboard are arranged opposite；And fin, the fin are fixed between mainboard and shield, and the suction surface of the pressure surface with the peripheral side positioned at mainboard and the central side positioned at mainboard.Fin possesses：Minor flap, which is formed with hollow bulb in inside, and extends to outer peripheral side from the central side of mainboard；And fin cover, the fin cover are installed on the positive pressure surface side of minor flap, and block the hollow bulb of minor flap.Minor flap has：Wind shear region, the wind shear region are located at shroud and are arranged at the leading edge potion of the central side of mainboard；And laminar flow zone, the laminar flow zone extend from wind shear region to mainboard side, the cutting part between minor flap and fin cover is arranged at laminar flow zone.

Description

Turbofan and used the turbofan air conditioner indoor unit

Technical field

The utility model is related to possess the turbofan of three-dimensional fin and used the turbofan air conditioner room Interior machine.

Background technology

In the past, it is known that there are it is a kind of have towards axial reverse while the turbofan of the multiple three-dimensional fins extended. In the turbofan, in order to realize the lightness of blade, the previous technology for proposing to have the inner hollow for making fin (such as is joined According to patent document 1).Patent Document 1 discloses the turbofan of the interior void with three-dimensional fin and three-dimensional fin, Wherein, two components of the three-dimensional fin on the surface for forming fin set protrusion and recess portion and make protrusion and recess portion mutually embedding respectively It closes.

Patent document 1：Japanese Unexamined Patent Publication 2014-206084 publications

However, in patent document 1, during centrifugal force when operating the cutting part in 2 components is caused (to connect sometimes Seam) generate gap.Particularly in the case of gap is generated in the cutting part of the shroud leading edge potion positioned at fin, air-flow flows into In gap, noise penalty.In addition, in the case where 2 components are only by chimeric be combined, it can be due to the vibration of turbofan Contact vibration is repeated in fitting portion, becomes the generating source of noise.

Utility model content

The utility model is to complete to solve problem as described above, and its purpose is to provide one kind to be reduced The turbofan of noise and used the turbofan air conditioner indoor unit.

Turbofan involved by the utility model has：Disk-shaped mainboard, the mainboard are rotated by driving；It is circular Shield, the shield and mainboard are arranged opposite；And fin, the fin are fixed between mainboard and shield, and have and be located at The suction surface of the pressure surface of the peripheral side of mainboard and the central side positioned at mainboard, fin possess：Minor flap, the minor flap is in inside Hollow bulb is formed with, and is extended to outer peripheral side from the central side of mainboard；And fin cover, the fin cover are installed on minor flap Positive pressure surface side, and the hollow bulb of minor flap is blocked, minor flap has：Wind shear region, the wind shear region be located at shroud and It is arranged at the leading edge potion of the central side of mainboard；And laminar flow zone, the laminar flow zone extend from wind shear region to mainboard side, it is main Cutting part between fin and fin cover is arranged at laminar flow zone, and the fin, which covers on the cutting part side, to be had to the main wing The protruding portion that piece protrudes, the minor flap have the insertion section for protruding portion insertion, are cut in the wind of the minor flap Become to form in region and have thinning part, the insertion section from the wind shear region of the minor flap to the hollow bulb from extending Rib form, and the movement of the protruding portion is guided.

Preferably, the edge part of the hollow bulb of the minor flap is formed as stepped, at the edge of the hollow bulb Portion is provided with the joint part for engaging and being supported with the outer rim of the fin cover.

Preferably, the fin cover has the pin being arranged in the hollow bulb, and the minor flap has to be consolidated for the pin Fixed boss.

Preferably, the fin is the three-dimensional fin for having twisted shapes.

Also, the indoor unit of the air conditioner of the utility model has used turbofan described in any one of the above embodiments.

Turbofan according to involved by the utility model, since the cutting part between minor flap and fin cover is arranged at layer Region is flowed, therefore the gas being inhaled into from the rotation direction of principal axis of minor flap and fin cover is difficult to the seam into the cutting part of fin Gap, therefore the generation of the noise caused by the gap of cutting part can be inhibited.

Description of the drawings

Fig. 1 is the stereogram for an example for showing the turbofan involved by the embodiment 1 of the utility model.

Fig. 2 is the sectional view for an example for showing the turbofan involved by the embodiment 1 of the utility model.

Fig. 3 is the stereogram for an example for showing the fin in the turbofan of Fig. 1 and Fig. 2.

Fig. 4 is the plan view for an example for showing the fin in the turbofan of Fig. 1 and Fig. 2.

Fig. 5 is the sectional view of the V-V sections for the fin for showing Fig. 4.

Fig. 6 is the section view of an example of the fin for showing the turbofan involved by the embodiment 2 of the utility model Figure.

Fig. 7 is showing for an example of the minor flap for showing the turbofan involved by the embodiment 3 of the utility model It is intended to.

Fig. 8 is showing for an example of the fin cover for showing the turbofan involved by the embodiment 3 of the utility model It is intended to.

Fig. 9 is cuing open for the indoor unit for the air conditioner for having used the turbofan involved by the embodiment 4 of the utility model View.

Specific embodiment

Embodiment 1.

Hereinafter, the embodiment of the turbofan of the utility model is illustrated referring to the drawings.Fig. 1 is to show this practicality The stereogram of one example of the turbofan involved by new embodiment 1, Fig. 2 are the embodiment party for showing the utility model The sectional view of one example of the turbofan involved by formula 1.The turbofan 1 of Fig. 1 and Fig. 2 is for example for ceiling imbedded The indoor unit of type has mainboard 2, shield 3 and fin 10.

Mainboard 2 is formed as disk-shaped, has the boss 2a with the rotation axis connection of motor in center.Moreover, by making not The motor of diagram is driven, and mainboard 2 is rotated centered on boss 2a.Shield 3 is formed as circular (bell shape), and with Mainboard 2 is arranged opposite.In addition, suck air from the hole in the center of shield 3.

Fin 10 is fixed with multiple between mainboard 2 and shield 3, and multiple fins 10 separate respectively in the circumferential direction of mainboard 2 Defined interval configuration.Fin 10 is the three-dimensional fin for having twisted shapes, and curve form is formed in the peripheral side of mainboard 2 Pressure surface 10a is formed with the suction surface 10b of curve form in the central side of mainboard 2.Moreover, when mainboard 2 rotates, Duo Geyi Piece 10 generates the air-flow from the center of mainboard 2 towards peripheral side.

Fig. 3 is the stereogram for an example for showing the fin in the turbofan of Fig. 1 and Fig. 2, and Fig. 4 is to show Fig. 1 And the plan view of an example of the fin in the turbofan of Fig. 2, Fig. 5 are cuing open for the V-V sections for the fin for showing Fig. 4 View.As shown in Fig. 3~Fig. 5, fin 10 is fixed in mainboard 2 in lower end 10d sides, and shield 3 is fixed in upper end 10u sides. The fin 10 possesses minor flap 11 and fin cover 12, is formed as being equipped with the construction of fin cover 12 in minor flap 11.

Minor flap 11 be form fin 10 pressure surface 10a a part and suction surface 10b plate component, have The shape extended to outer peripheral side from the central side of mainboard 2.For minor flap 11, such as by ultrasonic fusing etc., minor flap 11 Upper end 10u be fixed in shield 3, lower end 10d is fixed in mainboard 2.Opening is formed in the pressure surface 10a sides of minor flap 11 Hollow bulb 11h.Fin cover 12 is installed on the pressure surface 10a sides of minor flap 11 and forms a part of pressure surface 10a, and blocks The hollow bulb 11h of minor flap 11.

Minor flap 11 has：Wind shear region 10x, wind shear region 10x are arranged on 3 side of shield and are arranged at mainboard 2 Central side leading edge potion；And laminar flow zone 10y, laminar flow zone 10y are from wind shear region 10x to the master of pressure surface 10a 2 side of plate extends.Wind shear region 10x is to be cut for air-flow from the region of 3 side collision of shield with wind for example formed as circular shape The air-flow become after region 10x collisions is flowed to pressure surface 10a and suction surface 10b.Wherein, the gas flowed towards pressure surface 10a sides Stream is flowed from wind shear region 10x to laminar flow zone 10y.

Here, between minor flap 11 and fin cover 12, cutting part (seam) 13 is formed on surface.Moreover, the segmentation Portion 13 is arranged at laminar flow zone 10y.That is, the cutting part 13 between minor flap 11 and fin cover 12 is located at laminar flow zone 10y, in place Cutting part 13 is not present in the wind shear region 10x of the leading edge potion of 3 side of shield of fin 10, wherein, in laminar flow zone 10y, the wing The direction of air-flow on the pressure surface 10a of piece 10 and the direction in face are almost parallel.In this way, the rotation direction of principal axis from turbofan 1 The air-flow being inhaled into is difficult to the gap into cutting part 13.

Also, the edge part of the hollow bulb 11h of minor flap 11 is formed as almost identical with the thickness of fin cover 12 with depth The mode of depth be formed as stepped.Thus, the pressure surface 10a being made of minor flap 11 and fin cover 12 is formed as no concave-convex Smooth face.In the edge part of the hollow bulb 11h of minor flap 11, it is formed with and engages and supported with the outer rim of fin cover 12 Joint part 11a.In this way, fin cover 12 is fixed with the states contacted of the joint part 11a with minor flap 11.

According to the above embodiment 1, since cutting part 13 is arranged at laminar flow zone 10y, from minor flap 11 and fin The air-flow that the rotation direction of principal axis of cover 12 flows into is difficult into the gap of the cutting part 13 of fin 10, therefore can be inhibited with cutting part The noise that 13 gap generates for reason.That is, in the case where cutting part 13 as in the past is located at wind shear region 10x, Sometimes air-flow can enter the gap of cutting part 13, and the air-flow on fin 10 generates turbulent flow and generates noise.This feelings in order to prevent Condition needs to be split the seam in portion during fabrication, it is necessary to so that the size for not generating gap in cutting part 13 manufactures each component The stringent size management of gap.On the other hand, in the fin 10 of Fig. 1~Fig. 5, since cutting part 13 is arranged at laminar flow zone 10y, there is no need to be split the stringent management in the gap in portion 13 can just inhibit the generation of noise.

In addition, as shown in figure 5, for minor flap 11, when the edge part of hollow bulb 11h is formed as stepped, in hollow bulb When the edge part of 11h is provided with the joint part 11a for engaging and being supported with the outer rim of fin cover 12, it can inhibit because of centrifugal force And the situation that fin cover 12 is caused to be moved to the outside of minor flap 11.As a result, it is possible to inhibit to enter the seam of cutting part 13 because of air-flow Gap collides to form the deterioration of noise caused by turbulent flow along air-flow and the fin cover 12 of aerofoil.And main wing can be inhibited The generation of the noise of piece 11 and fin cover 12 caused by contacted during vibration.

Embodiment 2.

Fig. 6 is the section view of an example of the fin for showing the turbofan involved by the embodiment 2 of the utility model Figure.In addition, in the fin 110 of Fig. 6, for having the position of the structure identical with the fin of Fig. 5 110, mark identical attached Icon is remembered and is omitted the description.As shown in fig. 6, the protruding portion 112 of oriented 11 side of minor flap protrusion is set in fin cover 12, in main wing Piece 11 is provided with the insertion section 111 being inserted into for protruding portion 112.

Specifically, the insertion section 111 of minor flap 11 is set in a concave shape in joint part 11a.The protruding portion 112 of fin cover 12 It is arranged to convex in the outer edge side as cutting part 13.Moreover, by the way that the protruding portion 112 of fin cover 12 is made to be inserted in minor flap 11 Insertion section 111, fin cover 12 is located in minor flap 11.

According to the above embodiment 2, by setting protruding portion 112 in fin cover 12, insertion section is set in minor flap 11 111, in cutting part 13, gap will not be generated due to loosening or the warpage of minor flap 11 and fin cover 12.It is in such manner, it is possible to anti- Only minor flap 11 and fin cover 12 slided due to vibration caused by noise deterioration.In addition, it is inserted by being set in joint part 11a Enter portion 111, at the 11a of joint part, can inhibit minor flap 11 and fin cover 12 slided due to vibration caused by noise production It is raw.Even if also identical with embodiment 1 also, in the case of embodiment 2, since cutting part 13 is arranged at laminar flow zone 10y, there is no need to carry out the management in the gap of stringent cutting part 13 can just inhibit the generation of noise.

Embodiment 3.

Fig. 7 is showing for an example of the minor flap for showing the turbofan involved by the embodiment 3 of the utility model It is intended to, Fig. 8 is the signal of an example of the fin cover for showing the turbofan involved by the embodiment 3 of the utility model Figure.In addition, in the minor flap 211 of Fig. 7 and the fin cover 212 of Fig. 8, for having and the fin of Fig. 1~Fig. 5 10 and figure The position of the identical structure of 6 fin 110, marks identical reference numeral and omits the description.

In the inside of the wind shear region 10x of the minor flap 211 of Fig. 7, it is formed with and reduces the wall thickness of minor flap 11 and form Recess portion 211h.In order in the Inner Constitution thinning part of wind shear region 10x, the recess portion 211h directions out of wind shear region 10x Hollow bulb 11h is provided with such as 2 ribs along the direction extension of defined glide direction.The rib is as the cunning to protruding portion 112 The insertion section 211a that dynamic movement guides is functioned.In addition, there is minor flap 211 boss 211b, boss 211b to set In hollow bulb 11h and it is arranged at the position on the extended line of glide direction.

The fin cover 212 of Fig. 8 has：Protruding portion 112, the protruding portion 112 are slidably inserted into the insertion section of minor flap 211 211a；And pin 212b, pin 212b are inserted in the boss 211b of minor flap 211.Moreover, by by the pin of fin cover 212 212b is inserted in the boss 211b of minor flap 211 to carry out the positioning in face direction.In addition, by by the protruding portion of fin cover 12 112 are inserted in the insertion section 211a of minor flap 11, inhibit the rotation of the fin cover 212 centered on boss 211b.

According to the above embodiment 3, the recess portion 211h of thinning part is formed by being formed in the 10x of wind shear region, it can Inhibit the shrink mark generated in the shaping of minor flap 11 or warpage, formability can be improved.In addition, it is formed by using multiple ribs Insertion section 211a is reliably prevented from the position offset of fin cover 212 in assembling.Even if in addition, in the feelings of embodiment 3 Also identical with embodiment 1 under condition, since cutting part 13 is arranged at laminar flow zone 10y, there is no need to carry out stringent cutting part The management in 13 gap can just inhibit the generation of noise.

Embodiment 4.

Fig. 9 is cuing open for the indoor unit for the air conditioner for having used the turbofan involved by the embodiment 4 of the utility model View.In fig.9, for the position with identical structure, mark identical reference numeral and omit the description.The interior of Fig. 9 Machine 300 is the indoor unit of so-called ceiling flush type, to be set in a manner of the inboard for being embedded to ceiling.

Indoor unit 300 has：Main body 301；Decoration panel 302, the decoration panel 302 are configured at the lower surface of main body 301, And with suction inlet 302a and outlet 302b；Heat exchanger 303, the heat exchanger 303 are accommodated in main body 301；Turbine Fan 1,1 heat exchanger 303 of turbofan are blown；And motor 304, the motor 304 driving turbofan 1 rotate.And And turbofan 1 sucks room air from suction inlet 302a, and heat exchanger 303 is blown.It is carried out in heat exchanger 303 Air after heat exchange is from outlet 302b by indoor supply.

As the above embodiment 4, by being applied to the indoor unit 300 of air conditioner, nothing identical with embodiment 1~3 Need to carry out the stringent size management in the gap of the cutting part 13 of turbofan 1 can just obtain the air conditioner of low noise.

The embodiment of the utility model is not limited to the above embodiment 1~4, can make various changes.For example, In Fig. 5 and Fig. 6, the feelings on border of the cutting part 13 between wind shear region 10x and laminar flow zone 10y are illustrated Condition, but such case is not limited to, the position of the separate wind shear region 10x in laminar flow zone 10y can also be located at.In addition, In Fig. 5 and Fig. 6, being illustrated pressure surface 10a and suction surface 10b for the purpose of simplifying the description has the feelings of writing board shape Condition, but can also have curve form.

Reference sign

1：Turbofan；2：Mainboard；2a：Boss；3：Shield；10、110：Fin；10a：Pressure surface；10b：Suction surface； 10d：Lower end；10u：Upper end；10x：Wind shear region；10y：Laminar flow zone；11、211：Minor flap；11a：Joint part；11h：In Empty portion；12、212：Fin cover；13：Cutting part；111：Insertion section；112：Protruding portion；211a：Insertion section；211b：Boss； 211h：Recess portion；212b：Pin；300：Indoor unit；301：Main body；302：Decoration panel；302a：Suction inlet；302b：Outlet； 303：Heat exchanger；304：Motor.

Claims (6)

1. a kind of turbofan, which is characterized in that have：

Disk-shaped mainboard, the mainboard are rotated by driving；

Circular shield, the shield and the mainboard are arranged opposite；And

Fin, the fin are fixed between the mainboard and the shield, and with the peripheral side positioned at the mainboard just The suction surface of pressure surface and the central side positioned at the mainboard,

The fin possesses：

Minor flap, which is formed with hollow bulb in inside, and extends to outer peripheral side from the central side of the mainboard；And

Fin cover, the fin cover are installed on the positive pressure surface side of the minor flap, and block the described hollow of the minor flap Portion,

The minor flap has：Wind shear region, the wind shear region are located at the shroud and are arranged in the mainboard The leading edge potion of heart side；And laminar flow zone, the laminar flow zone extend from the wind shear region to the mainboard side,

Cutting part between the minor flap and the fin cover is arranged at the laminar flow zone,

The fin, which covers on the cutting part side, has the protruding portion prominent to the minor flap,

The minor flap has the insertion section for protruding portion insertion,

Being formed in the wind shear region of the minor flap has thinning part,

The insertion section is made of the rib extended from the wind shear region of the minor flap to the hollow bulb, and to described The movement of protruding portion guides.

2. turbofan according to claim 1, which is characterized in that

The edge part of the hollow bulb of the minor flap is formed as stepped,

The joint part for engaging and being supported with the outer rim of the fin cover is provided in the edge part of the hollow bulb.

3. turbofan according to claim 1 or 2, which is characterized in that

The fin cover has the pin being arranged in the hollow bulb,

The minor flap, which has, supplies the fixed boss of the pin.

4. turbofan according to claim 1 or 2, which is characterized in that

The fin is the three-dimensional fin for having twisted shapes.

5. turbofan according to claim 3, which is characterized in that

The fin is the three-dimensional fin for having twisted shapes.

6. a kind of indoor unit of air conditioner, which is characterized in that

Turbofan according to any one of claims 1 to 5 is used.