KR101278629B1 - Blower wheel of air conditioning system for automotive vehicles - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blowing wheel of an air conditioning system for a vehicle, and aims at preventing resonance noise generated when inhaling air.

In order to achieve the above object, the present invention, the first wing portion for sucking the air on one side, the second wing portion for sucking the air on the other side, both the first wing portion and the second wing portion at the same time partitioning both A hub for guiding radial air outward in a radially outward direction, wherein the hub comprises a cone-shaped central portion and an extension portion extending radially outwardly from the periphery of the edge of the cone-shaped central portion, A first wave is formed along the circumferential direction to an extension of the one side so as to disperse the air sucked into one side of the hub, and the other side air sucked into the other side of the hub is formed. A second wave is formed along the circumferential direction to an extension of the other side so as to be dispersed.

Description

BLOWER WHEEL OF AIR CONDITIONING SYSTEM FOR AUTOMOTIVE VEHICLES}

1 is a perspective view showing a blower of a general vehicle air conditioning system,

Figure 2 is a cross-sectional view of Figure 1 showing a blowing wheel of a conventional vehicle air conditioning system,

3 is a perspective view showing a blowing wheel of a conventional vehicle air conditioning system,

4 is a cross-sectional view showing a blowing wheel of the vehicle air conditioning system according to the present invention;

5 is a perspective view showing a blowing wheel of the vehicle air conditioning system according to the present invention;

6 is a perspective view of a hub constituting the blower wheel of the present invention;

7 is a side view of the hub constituting the blower wheel of the present invention.

DESCRIPTION OF REFERENCE NUMERALS

10: blower wheel 12: hub

12a: one side 12b: the other side

13: wing 13a: first wing

13b: 2nd wing part 14: Cone center part

16: extension 20 blower motor

30: first wave 32: mountain

34: Goal 40: Second Wave

42: mountain 44: goal

The present invention relates to a blowing wheel of a vehicle air conditioning system, and more particularly,

It relates to a blowing wheel of the vehicle air conditioning system that can prevent the resonance noise generated when the air intake.

The car is equipped with an air conditioning system that regulates the indoor air temperature. The air conditioning system keeps the room warm by generating warmth in winter, and keeps the room cool by generating cold in summer.

This air conditioning system, as shown in Fig. 1 and 2, is provided with a blower (1) for sucking the outside air or bet, and then blows into the interior of the vehicle.

The blower 1 is provided with the blowing wheel 10 provided in the blowing chamber 5 of the air conditioning case 3, and the blowing motor 20 which drives the blowing wheel 10. As shown in FIG.

The blower wheel 10 is a double-suction Sirocco wheel, and as shown in FIGS. 2 and 3, a plurality of hubs 12 and around the hub 12 are installed around the hub 12. The wings 13 are provided.

The hub 12 includes a cone type center portion 14 to which the shaft 22 of the blower motor 20 is fixed, and an extension portion extending flat out radially outward from an edge of the cone type center portion 14 ( 16).

This hub 12 partitions the blade 13 in both parts. In particular, the first wing portion 13a on one side and the second wing portion 13b on the other side are partitioned, and each of the partitioned first wing portion 13a and the second wing portion 13b is formed of the ventilation chamber 5. Allows one side air and the other side to inhale at the same time. In addition, the hub 12, at the same time performs a role of guiding the one side air and the other air sucked from both sides in the radially outer side.

The blades 13 suck both air in the blower chamber 5 while simultaneously rotating as the hub 12 rotates, and blows both sucked air into the inner passage 3a of the air conditioning case 3. . Therefore, the air blown into the inner passage 3a can be supplied to the interior of the vehicle.

However, the conventional blower wheel 10 has a disadvantage of causing resonance noise in the process of sucking both air, and due to this disadvantage there is a problem that the ride comfort of the vehicle is significantly reduced.

In other words, both air sucked from the first and second wing portions 13a and 13b collide with one side surface 12a and the other side surface 12b of the hub 12, respectively, and are diverted in a 90 ° angle outward direction. Be guided.

However, since one side surface 12a and the other side surface 12b of the air guide hub 12 have a constant shape along the circumferential direction, the air sucked from both sides is always constant without changing only to a region of a specific portion. Are guided. Therefore, there is a problem in that air in a specific region always maintains a constant pressure (hereinafter, abbreviated as "static pressure"), and air in a specific region which maintains a constant pressure causes resonance by interfering with air around the periphery. In particular, there is a problem that resonance noise is generated inside the blower wheel 10 due to the resonance phenomenon.

On the other hand, the resonance noise generated in the blowing wheel 10 is transmitted to the interior of the vehicle, thereby significantly reducing the ride comfort of the vehicle.

The present invention has been made to solve the above-mentioned conventional problems, the object is to prevent the intake air to be guided only to a specific area, the air conditioning for a vehicle that can prevent the air in a specific region to maintain a constant pressure To provide a blower wheel for the system.

Another object of the present invention is to provide a blowing wheel of an air conditioning system for a vehicle that can prevent resonance of the air and the noise due to the air maintaining a constant pressure by preventing the air in a specific region from maintaining a constant pressure. .

Still another object of the present invention is to provide a blowing wheel of an air conditioning system for a vehicle, which can prevent a phenomenon in which a ride comfort of a vehicle is lowered due to resonance noise.

In order to achieve this object, the present invention, the first wing portion for sucking the air on one side, the second wing portion for sucking the air on the other side, and the first wing portion and the second wing portion at the same time partitioned and sucked A hub for guiding both air radially outwardly, the hub having a cone-shaped central portion and an extension portion extending radially outwardly from an edge around the edge of the cone-shaped central portion. The first wave is formed along the circumferential direction in an extension of the one side to disperse the air sucked into one side of the hub, and the other side air sucked into the other side of the hub. It characterized in that to form a second wave along the circumferential direction to the extension of the other side so as to disperse.

Preferably, each of the first wave and the second wave is formed at equal intervals along the circumferential direction of the extension, the height of the acid is characterized in that the height of about 6 to 8% of the diameter of the extension.

The peaks of the second wave correspond to overlap the valleys of the first wave, and the valleys of the second wave correspond to the peaks of the first wave.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a blowing wheel of a vehicle air conditioning system according to the present invention will be described in detail with reference to the accompanying drawings (the same components will be described using the same reference numerals).

Figure 4 is a cross-sectional view showing a blowing wheel of the vehicle air conditioning system according to the present invention, Figure 5 is an enlarged perspective view of the blowing wheel of the present invention.

First, before looking at the features of the blowing wheel according to the present invention, a brief description of the blowing wheel of the air conditioning system with reference to FIGS.

The blowing wheel 10 has a hub 12 in the center and a plurality of vanes 13 installed around the hub 12.

The hub 12 is composed of a cone-shaped central portion 14 and an extension portion 16 extending radially outward from the edge circumference of the cone-shaped central portion 14.

The hub 12 divides the blade 13 into a first blade portion 13a and a second blade portion 13b, and each of the partitioned first blade portion 13a and the second blade portion 13b is formed. One side of the blower chamber 5 and the other side of the air can be sucked at the same time. In addition, the hub 12 also serves to guide the one side air and the other air sucked from both sides in the radially outer side.

The blades 13 suck both air in the blower chamber 5 while simultaneously rotating as the hub 12 rotates, and blows both sucked air into the inner passage 3a of the air conditioning case 3. .

Next, look at in detail the features of the blowing wheel according to the present invention.

First, the blower wheel of the present invention, as shown in Figures 4 to 7, having a hub 12, the first wave formed on one side (12a) extending portion 16 of the hub ( Wave 30 and the second wave 40 is formed on the extension portion 16 of the other side (12b) of the hub (12).

As shown in FIGS. 6 and 7, the first wave 30 is formed of a hill 32 and a valley 34 alternately formed along the circumferential direction of the extension 16, wherein the hill 32 protrudes in the outward direction of the first wing part 13a, and the valley 34 is immersed in the inward direction of the first wing part 13a.

The first wave 30 disperses the air sucked from the first wing portion 13a while simultaneously rotating as the blowing wheel 10 rotates. In particular, by dispersing the inhaled air, it is possible to prevent the inhaled air from being constantly guided only to a specific area, and to prevent the guided air into a specific area, thereby preventing the air in a specific area from maintaining a constant pressure. By preventing the air in the region from maintaining a constant pressure, the air in the specific region maintaining the constant pressure and the surrounding air are prevented from interfering with each other.

As a result, since the resonance phenomenon can be prevented, the resonance noise due to the resonance phenomenon can be suppressed, and therefore, the phenomenon of the ride comfort of the vehicle due to the resonance noise can be prevented in advance.

On the other hand, the number of the first wave 30, the number of the peaks 32 is formed three at equal intervals along the circumferential direction of the extension portion 16, the height h of the peak 32 is the extension portion 16 It is preferable to have a height of about 6 to 8% with respect to the diameter (L). This means that if the number of the peaks 32 is greater than three, and the height h of the peaks 32 is greater than 8% of the diameter ℓ of the extension 16 and the height is high, then the rotation of the hub 12 is high. This may cause unbalance and may cause interference with inhaled air, causing rumble noise.

The second wave 40 is composed of a peak 42 and a valley 44 alternately formed along the circumferential direction of the extension 16, wherein the peak 42 is the second blade portion 13b. Protrude in the outward direction, and the valleys 44 are immersed in the inward direction of the second blade portion 13b.

The second wave 40 disperses the air sucked from the second blade portion 10b while simultaneously rotating as the blowing wheel 10 rotates. In particular, by dispersing the inhaled air, it is possible to prevent the inhaled air from being constantly guided only to a specific area, and to prevent the guided air into a specific area, thereby preventing the air in a specific area from maintaining a constant pressure. By preventing the air in the specific region from maintaining a constant pressure, the air in the specific region holding the constant pressure and the surrounding air are prevented from interfering with each other.

As a result, since the resonance phenomenon can be prevented, the resonance noise due to the resonance phenomenon can be suppressed, and therefore, the phenomenon of the ride comfort of the vehicle due to the resonance noise can be prevented in advance.

On the other hand, the second wave 40, the same as the first wave 30, the number of the mountains 42 is formed in three at equal intervals along the circumferential direction of the extension portion 16, the mountain 42 It is preferable that the height h is about 6 to 8% of the height (l) of the extension 16. This means that if the number of the peaks 42 is greater than three, and the height h of the peaks 42 is greater than 8% of the diameter ℓ of the extension 16 so that the height is high, the rotation of the hub 12 is achieved. This can cause unbalanced phenomena and interfere with inhaled air, causing rumble noise.

The hill 42 of the second wave 40 corresponds to the valley 34 of the first wave 30, and the valley 44 of the second wave 40 corresponds to the hill of the first wave 30. It is configured to correspond to the overlap (32). Accordingly, the first wave 30 and the second wave 40 are arranged side by side to have a single wave shape.

According to the present invention having such a configuration, since the air sucked from the first and second wing portions 13a and 13b is uniformly dispersed, it is possible to prevent the sucked air from being guided only to a specific region. Therefore, it is possible to prevent the air in the specific region from maintaining a constant pressure.

In addition, since it is possible to prevent the air in the specific region from maintaining a static pressure, it is possible to suppress the resonance phenomenon caused by the interference between the air in the specific region holding the constant pressure and ambient air, and the occurrence of resonance noise.

In addition, since the occurrence of resonance and resonance noise can be suppressed, it is possible to prevent a phenomenon of deterioration of ride comfort of the vehicle due to resonance noise.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

As described above, according to the blowing wheel of the vehicle air conditioning system according to the present invention, since the air sucked on both sides is prevented from being guided only to a specific region, it is possible to prevent the air in the specific region from maintaining a constant pressure. Therefore, there is an effect that can suppress the occurrence of resonance and resonance noise due to air maintaining a constant pressure.

In addition, since the occurrence of resonance and resonance noise can be suppressed, the riding comfort of the vehicle can be remarkably improved.

Claims (3)

Partitioning the first wing portion 13a for sucking air from one side, the second wing portion 13b for sucking air from the other side, and the first wing portion 13a and the second wing portion 13b; A hub 12 for guiding both air sucked at the same time radially outward, the hub 12 extending radially outward from a circumferential edge of the cone-shaped central portion 14 and the cone-shaped central portion 14; In the double-suction blowing wheel of the air conditioning system for a vehicle comprising an extension portion 16, A first wave 30 is formed along the circumferential direction in the extension part 16 of the one side surface 12a so as to disperse air from one side sucked into the side surface 12a of the hub 12. and, The second wave 40 is formed along the circumferential direction in the extension part 16 of the other side 12b so as to disperse the air of the other side sucked into the other side 12b of the hub 12. Blower wheels for vehicle air conditioning systems. The method of claim 1, The peaks 32 and 42 of each of the first wave 30 and the second wave 40 are formed at equal intervals along the circumferential direction of the extension 16 and the heights of the peaks 32 and 42 ( h) the blowing wheel of the vehicle air conditioning system, characterized in that it has a height of 6 to 8% relative to the diameter (ℓ) of the extension (16). The method according to claim 1 or 2, The peak 42 of the second wave 40 overlaps the valley 34 of the first wave 30, and the valley 44 of the second wave 40 corresponds to the first wave 30. The blowing wheel of the vehicle air conditioning system, characterized in that the first wave (30) and the second wave (40) are arranged parallel to each other to correspond to the mountain (32) of.

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