KR20140099655A - Fan and Shroud Assemble - Google Patents

Fan and Shroud Assemble Download PDF

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Publication number
KR20140099655A
KR20140099655A KR1020130012327A KR20130012327A KR20140099655A KR 20140099655 A KR20140099655 A KR 20140099655A KR 1020130012327 A KR1020130012327 A KR 1020130012327A KR 20130012327 A KR20130012327 A KR 20130012327A KR 20140099655 A KR20140099655 A KR 20140099655A
Authority
KR
South Korea
Prior art keywords
fan
bell mouth
air
shroud assembly
fan shroud
Prior art date
Application number
KR1020130012327A
Other languages
Korean (ko)
Inventor
이상현
김준호
Original Assignee
한라비스테온공조 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 한라비스테온공조 주식회사 filed Critical 한라비스테온공조 주식회사
Priority to KR1020130012327A priority Critical patent/KR20140099655A/en
Publication of KR20140099655A publication Critical patent/KR20140099655A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • F04D29/547—Ducts having a special shape in order to influence fluid flow
    • 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
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a fan shroud assembly. More specifically, the fan shroud assembly includes a fan with blades and a shroud which has a stator formed on the front side surface of a vehicle of the fan. The fan shroud assembly includes an injury prevention cover which is rigidly coupled to a bell mouse on the rear side surface of the fan vehicle to cover an end unit partially in the radial direction of the blades to protect a worker from the blades while he or she is replacing or maintaining the components of an engine room.

Description

[0001] Fan and Shroud Assemble [0002]

The present invention relates to a fan shroud assembly and more particularly to a fan shroud assembly comprising a fan including blades and a shroud having a stator formed on the vehicle front side of the fan, And a fan shroud assembly which is formed to include an anti-shatter cover covering an end portion of the blade in the radial direction of the blade, thereby protecting the worker from the blade in an operation for replacing or repairing parts of the engine room, .

In the engine where the actual driving force of the vehicle is generated, a lot of heat energy is generated in the process of converting chemical energy into kinetic energy. If such thermal energy is excessively generated, there is a possibility that the parts around the engine and / or the engine are overheated, which may be damaged or destroyed, leading to a great failure and an accident, and the efficiency of the engine itself is greatly reduced. Therefore, in order to eliminate such a problem, a vehicle is usually provided with a device for cooling the engine. As a typical method for cooling an engine, there is a method using cooling water, which includes a radiator for circulating cooling water around the engine and for cooling the cooling water, absorbing heat generated in the engine, Prevents the engine from overheating by releasing heat from the radiator. In addition, a device for cooling indoor air is also provided for the comfort of the vehicle driver and passengers. A heat exchanger such as a condenser is used to cool the refrigerant of the air conditioner for indoor cooling.

The heat exchangers such as the radiator R and the condenser C are provided in front of the engine room of the vehicle. In the heat exchangers, heat exchange occurs between the surrounding air and the heat exchange medium inside the heat exchanger. At this time, in order to increase the heat radiation efficiency of the heat exchanger, an axial fan capable of forcibly blowing air to the heat exchanger is installed.

The axial fan is generally accommodated in a shroud, and a motor or the like for rotating the axial fan is fixed to the shroud, and the shroud is mounted and fixed in position. Thus, the axial fan assembly composed of the axial fan, the shroud, the motor and the like is mounted on the bottom of the heat exchanger or the engine room to be disposed in front of or behind the heat exchanger.

The assembly F of the fan shroud according to the prior art comprises a fan 10 and a shroud 20 as shown in FIG. The fan 10 includes a hub coupled to the rotation shaft of the motor 11, a plurality of blades 12 formed at regular intervals on the outer circumferential surface of the hub, Shaped band.

The shroud 20 is formed so as to surround the outermost rotational locus of the blade 12 so as not to be in contact with the band, and is adjacent to a heat exchanger (not shown).

A bell mouth 21 curved at a predetermined curvature is integrally formed at the end of the shroud 20 adjacent to the heat exchanger. The motor 11, to which the rotary shaft is coupled, (22).

The shroud 20 is provided with a plurality of stator 23 for connecting the outer surface of the motor mounting portion 22 and the outer surface of the bell mouth 21.

According to the above-described conventional technique, as the blade 12 of the fan 10 rotates by receiving the driving force of the motor 11, the air that has passed through the heat exchanger is forcibly sucked and most of the air passes through the blade 12 And the rest of the air flows to the bell mouth 21 along the inner surface of the shroud 20 and the air that has flowed to the bell mouth 21 is discharged to the outside of the fan 10. [

Related art is disclosed in Korean Patent No. 0729650 (registered Jun. 7, 2007, entitled "Noise Reduction Structure Shirra Wood"), in which a vortex-preventing tooth inclined in the rotational direction of the axial flow fan is arranged in a blow- Wood has been disclosed.

On the other hand, the fan shroud assembly shown in Figs. 1 and 2 has the stator 23 disposed on the engine room side of the vehicle and the blades 12 disposed on the front side of the vehicle, while the fan shroud assembly shown in Fig. The blades 12 are disposed on the engine room side of the vehicle and the stator 23 is disposed on the front side so that the thickness in the front-rear direction of the vehicle is thinner than in Figs.

However, while the fan shroud assembly shown in FIG. 3 has an advantage in that it can be slimmed down, there is a problem in that an operator may be injured by a blade in an operation for replacing or repairing parts of the engine room. Technology development is needed.

Domestic Registration No. 0729650 (Registered on Jun. 12, 2007, Name: Shirra Wood with Noise Reduction Structure)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fan shroud assembly including a fan including a blade and a shroud having a stator formed on a front side of the fan of the fan, And an injury prevention cover which is engaged with the bell mouth at the rear side of the vehicle and covers an end portion of the blade in a radial direction of the blade so that the worker is protected from the blade in an operation for replacing or repairing parts of the engine room To provide a fan shroud assembly.

It is a further object of the present invention to provide an air-guiding portion in a bell mouth coupling portion of an anti-injury cover, which is simple in construction and capable of minimizing noise generated by a vortex by guiding the flow of air appropriately outward, And to provide a fan shroud assembly capable of minimizing losses.

The fan shroud assembly of the present invention includes a hub 120 coupled to a rotating shaft of a motor 110, a plurality of blades 130 formed on an outer circumferential surface of the hub 120, A fan (100) including a fan band (140) connecting the blades (130); A bell mouth 220 forming a blowing portion 210 through which air is blown, a motor mounting 230 on which the motor 110 is fixedly mounted, and a motor mounting 230 on the front side of the fan 100 A fan shroud assembly (1) comprising a shroud (200) formed with a plurality of stator (240) connecting a bell mouth (220) and a bell mouth And an injury prevention cover 300 coupled to the bell mouth 220 at a rear side of the vehicle and covering a predetermined end portion of the blade 130 in a radial direction.

In addition, the injury prevention cover 300 includes a bell mouth coupling part 310 which is engaged with and fixed to the bell mouth 220; And a cover part (320) covering an end portion of the blade in a radial direction of the blade (130). And is formed to include a plurality of protrusions.

The bell mouth coupling part 310 includes an air guide part 311 adjacent to the bell mouth 220 and inclined outward so that air passing through the air blowing part 210 is guided to the outside; And a fixing part (312) fixed in contact with an outer edge of the bell mouth (220); And is formed to include a plurality of protrusions.

The air guide 311 may be curved or oblique.

The air guide part 311 is formed such that an end of the air guide part 311 located on the air supply part 210 has the same radius as that of the fan band 140.

The air guide part 311 is formed such that an end of the air guide part 311 located on the airflow guide part 210 is spaced apart from the fan band 140 by a predetermined distance.

The fan shroud assembly of the present invention is a fan shroud assembly composed of a fan including a blade and a shroud having a stator formed on a front side of the fan of the fan, Preventing cover covering a predetermined end area in the radial direction of the engine, whereby it is possible to protect the operator from the blades in an operation for replacing or repairing parts of the engine room.

In addition, the fan shroud assembly of the present invention has a simple structure in which an air guide portion is formed in the bell mouth coupling portion of the injury prevention cover, and the noise generated by the vortex can be minimized by appropriately guiding the air flow. , And the air volume can be increased.

In addition, the fan shroud assembly of the present invention is formed such that the end portion on the airflow guide side of the air guide portion has the same radius as that of the fan band, thereby maximizing a region where air can be blown, So that the flow of air can be effectively guided to the outside.

In addition, the fan shroud assembly of the present invention is formed such that the end portion on the airflow guide side of the air guide portion is spaced apart from the fan band by a certain distance, thereby preventing the fan band from colliding with the air guide portion due to vibration caused by rotation of the blade, can do.

1 is a front view of a conventional fan shroud assembly;
2 is a schematic side cross-sectional view showing a state in which a conventional fan shroud assembly is mounted on a vehicle.
3 is a perspective view of another conventional fan shroud assembly;
4 is a perspective view of a fan shroud assembly in accordance with the present invention.
5 is a schematic side cross-sectional view of a fan shroud assembly according to the present invention mounted on a vehicle.
6 is a partially enlarged perspective view of a bell mouth coupling part of a fan shroud assembly according to the present invention.
7 is a side sectional view of Fig. 6; Fig.
Figure 8 is a front view of a fan shroud assembly in accordance with the present invention;
9 is a cross-sectional view of yet another bell mouth coupling portion of a fan shroud assembly in accordance with the present invention.

Hereinafter, the fan shroud assembly according to the present invention will be described in detail with reference to the accompanying drawings.

4 and 5, the fan shroud assembly 1 according to the present invention comprises a fan 100 and a shroud 200, and further includes an anti-injury cover 300 .

The fan 100 includes a hub 120, a blade 130, and a fan band 140. The fan 120 includes a hub 120, a blade 130, and a fan band 140. The fan 120 is a rotary fan that rotates by a motor 110 and transmits blowing air to a heat exchanger .

The rotation axis of the motor 110 as a driving means is connected to the center of the fan 100. The hub 120 is formed at the center of the fan 100 and the driving means for driving the fan 100 is seated It is possible to provide a space to be used.

The plurality of blades 130 are arranged radially in the circumference of the hub 120, and transfer air in the axial direction.

The motor 110 is a driving source for blowing the fan 100 while rotating the fan 100 in the same direction for cooling the heat exchange medium passing through the inside of the heat exchanger of the vehicle.

The fan band 140 is formed by connecting end portions of the blades 130 to each other and is formed in a ring shape as a whole. When viewed in cross section in the air blowing direction, an end portion is bent as shown in FIG. 5, And is formed into a hook shape.

Next, the shroud 200 is formed to include a bell mouth 220, a motor mounting 230, and a stator 240.

The shroud 200 is a part of the fan shroud assembly 1 as shown in FIG. 4 and forms a basic body for blowing air, and supports the fan 100 and the motor 110.

First, the bell mouth 220 forms a blow-up portion 210, which is a hollow space, through which air is blown by the fan 100.

At this time, the bell mouth 220 may be formed by arranging vortex-preventing teeth that are inclined in the rotating direction of the fan 100. When air is blown by the rotation of the fan 100, a swirling airflow ) And the generation of a recirculating airflow can be suppressed, so that the noise can be effectively reduced.

The motor mounting 230 is a part where the motor 110 for driving the fan 100 is fixedly supported and is located in the central region of the airflow 210.

The stator 240 is a member for connecting the bell mouth 220 and the motor mounting 230 and is formed to connect the inner circumferential surface of the bell mouth 220 from the outer circumferential surface of the motor mounting 230, Are formed in the radial direction along the periphery of the mouse 220 in the radial direction.

Particularly, in the fan shroud assembly 1 according to the present invention, when the stator 240 is located on the front side of the fan 100 and is assembled with the heat exchanger to form a cooling module, The fan 100 is positioned on the outermost surface of the module.

In this case, the fan shroud assembly 1 according to the present invention is configured such that the injury prevention cover 300 is mounted on the engine room side of the fan 100 to prevent the operator from being injured by the blade 130 .

4, the injury prevention cover 300 is fixedly coupled to the bell mouth 220 at the vehicle rear side of the fan 100, and has a predetermined end area in the radial direction of the blade 130 Cover.

The injury prevention cover 300 includes a bell mouth coupling part 310 to which the bell mouth 220 is coupled and fixed and a cover part 320 that covers a predetermined end area in the radial direction of the blade 130 .

The cover part 320 covers a certain area of the end part in the radial direction of the blade 130. The cover part 320 covers a portion of the blade 130 at a distance of 1/5 of the length of the blade 130 to the extent that the hand of the operator is not injured It is better to cover only about 1/3.

In addition, the cover 320 may be formed in a net shape having a blow hole having a proper size so as not to interfere with the flow of the blown air.

In other words, the cover 320 includes a plurality of horizontal ribs 321 extending along the circumferential direction and spaced apart from each other by a predetermined distance in the radial direction, a plurality of vertical ribs 321 extending in the radial direction, (Not shown).

At this time, the horizontal ribs 321 and the vertical ribs 322 are formed in an appropriate number so that the size of the blow holes connected to each other is not too small or too large.

If the size of the ventilation hole is too small, it may prevent the air from flowing excessively, and if it is too large, it may not be possible to protect the operator from the blade 130.

The bell mouth coupling part 310 is integrally formed at the edge of the cover part 320 in the circumferential direction. In other words, the cover 320 has a shape in which the vertical ribs 322 are formed to extend in the radial direction at the bell-mouse engaging portion 310.

The bell mouth coupling part 310 can be further divided into an air guide part 311 and a fixing part 312. The air guide part 311 is disposed adjacent to the bell mouth 220, And is inclined outward so that air passing through the blowing part 210 is guided to the outside.

6 and 7, the air guide portion 311 is formed on the upper side of the bell mouth 220 in the drawing, and the air passing through the air blowing portion 210 is formed on the outer side . When the air passing through the fan-blowing unit 210 flows between the fan band 140 and the bell mouth 220 and generates a vortex when it flows, noise can be generated. Therefore, in order to prevent noise and increase airflow, It is preferable that the guide portion 311 is formed obliquely.

6, the air guide 311 may be formed as a curved surface. In this case, the curvature radius of the air guide 311 may be based on one of the long axis or the short axis of the ellipse. have. The amount of air flowing along the air guide 311 may vary according to the radius of curvature of the air guide 311. Therefore, considering various design conditions of the fan 100 and the shroud 200, It is better to design with the optimum value.

9, the air guide 311 may be formed in a slanting line. In this case, as in the case where the slope is a curved surface, the fan 100 and the shroud 200 may have various designs It can be designed to the optimum value in consideration of the condition and the amount of wind blowing.

6, the fixing portion 312 is fixed to the outer edge of the bell mouth 220, that is, the outer edge of the bell mouth 220, that is, Can be fixed in contact with the outer peripheral surface of the wood (200).

The fixing portion 312 may be fixed by a bolt inserted horizontally in a side surface of the shroud 200. A protrusion may be formed on an outer circumferential surface of the shroud 200 and hooks may be formed on the fixing portion 312 to be coupled to each other And may be fixed by a combination of the above two methods.

In this case, in addition to the above-described method, the fixing method of the shroud 200 of the fixing portion 312 may be modified in any other form as long as the fixing portion 312 can be coupled to the shroud 200 .

7, the fixing part 312 is fixed in contact with the outer surface of the bell mouth 220, and is formed in a stepped shape at an upper end of the shroud 200, And the upper surface of the bell mouth 220 may be spaced apart from each other by a predetermined distance so that the end portion of the air flow portion 210 on the side of the air flow portion 210 is spaced from the fan band 140 by a predetermined distance, A space can be ensured to be formed.

6 to 9, the air guide portion 311 is formed such that an end portion of the air guide portion 311 located on the air supply portion 210 side is spaced apart from the fan band 140 by a predetermined distance, Even if vibration is generated by rotation, the fan band 140 is prevented from colliding with the air guide part 311 to generate noises.

However, if the gap between the air guide portion 311 and the fan band 140 is too large, air blown through the air guide portion 311 may flow to generate a vortex, The air guide portion 311 and the fan band 140 may be formed only to the extent that the air guide portion 311 and the fan band 140 do not collide with each other.

The air guide part 311 may be formed such that an end of the air guide part 311 located on the air supply part 210 side has the same radius as the fan band 140. This maximizes the air blowing area, So as to minimize the flow of air into the space between the fan band 140 and the bellmouth 220, so as to smoothly guide the air to the outside.

The fan shroud assembly 1 of the present invention includes the fan 100 including the blades 130 and the shroud 200 having the stator 240 formed on the vehicle front side of the fan 100 The fan shroud assembly 1 includes the injury prevention cover 300 so that the operator can be protected from the blade 130 in an operation for replacing or repairing parts of the engine room.

In addition, the fan shroud assembly 1 of the present invention has a simple structure in which the air guiding portion 311 is formed in the bell mouth coupling portion 310 of the injury prevention cover 300, Thus, the noise generated by the vortex can be minimized, and the airflow can be increased.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It goes without saying that various modifications can be made.

1: fan shroud assembly
100: Fan
110: motor 120: hub
130: blade 140: fan band
200: Shuraud
210: Song-rich portion 220: Bell Mouse
230: motor mounting 240:
300: Injury protection cover
310: Bell mouth coupling part
311: air guide portion 312: fixing portion
320:
321: Horizontal rib 322: Vertical rib

Claims (6)

A plurality of blades 130 formed on the outer circumferential surface of the hub 120 and a fan 130 connecting the blades 130 at the ends of the blades 130. [ A fan (100) comprising a band (140); A bell mouth 220 forming a blowing portion 210 through which air is blown, a motor mounting 230 on which the motor 110 is fixedly mounted, and a motor mounting 230 on the front side of the fan 100 A fan shroud assembly (1) comprising a shroud (200) having a plurality of stator (240) connecting a bell mouth (220)
The fan shroud assembly (1)
And an injury prevention cover 300 coupled to the bell mouth 220 at the vehicle rear side of the fan 100 and covering a predetermined end area of the blade 130 in the radial direction. Fan shroud assembly.
The method according to claim 1,
The anti-injury cover (300)
A bell mouth coupling part 310 which is coupled and fixed around the bell mouth 220; And
A cover portion 320 covering an end portion of the blade 130 in a radial direction; The fan shroud assembly comprising:
3. The method of claim 2,
The bell mouth coupling part 310
An air guide portion 311 formed adjacent to the bell mouth 220 and formed obliquely outward so that air passing through the air blowing portion 210 is guided to the outside; And
A fixing part 312 fixed to the outer edge of the bell mouth 220; The fan shroud assembly comprising:
The method of claim 3,
The air guide portion 311
Wherein the fan shroud assembly is formed of a curved or oblique shape.
5. The method of claim 4,
The air guide portion 311
And an end portion of the fan shroud (210) is formed to have the same radius as the fan band (140).
5. The method of claim 4,
The air guide portion 311
And the end portion of the fan shroud (210) is spaced apart from the fan band (140) by a predetermined distance.
KR1020130012327A 2013-02-04 2013-02-04 Fan and Shroud Assemble KR20140099655A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130012327A KR20140099655A (en) 2013-02-04 2013-02-04 Fan and Shroud Assemble

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130012327A KR20140099655A (en) 2013-02-04 2013-02-04 Fan and Shroud Assemble

Publications (1)

Publication Number Publication Date
KR20140099655A true KR20140099655A (en) 2014-08-13

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Family Applications (1)

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KR1020130012327A KR20140099655A (en) 2013-02-04 2013-02-04 Fan and Shroud Assemble

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762780A (en) * 2016-12-27 2017-05-31 广东泛仕达机电有限公司 A kind of blower tray and the fan assembly including the blower tray
KR20180031116A (en) * 2016-09-19 2018-03-28 한온시스템 주식회사 Structure of Fan Shroud
CN108180154A (en) * 2017-12-27 2018-06-19 泛仕达机电股份有限公司 A kind of fan ripple stent

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180031116A (en) * 2016-09-19 2018-03-28 한온시스템 주식회사 Structure of Fan Shroud
CN106762780A (en) * 2016-12-27 2017-05-31 广东泛仕达机电有限公司 A kind of blower tray and the fan assembly including the blower tray
CN106762780B (en) * 2016-12-27 2023-05-30 泛仕达机电股份有限公司 Fan support and fan device comprising same
CN108180154A (en) * 2017-12-27 2018-06-19 泛仕达机电股份有限公司 A kind of fan ripple stent

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