KR20140100280A - Fan and Shroud Assemble - Google Patents

Abstract

The present invention relates to a fan-shroud assembly including two fans. More specifically, the fan-shroud assembly includes an integrated controller for driving a first motor for driving a first fan and a second motor for driving a second fan. The integrated controller is arranged on a plenum portion of a shroud, on a space between the first and second fans, to reduce production costs and facilitate the assembling process.

Description

[0001] Fan and Shroud Assemble [0002]

The present invention relates to a fan shroud assembly including two fans, and more particularly to a fan shroud assembly including a first motor for driving a first fan and an integrated controller for driving a second motor for driving a second fan And the integrated controller is disposed at the shroud flange portion of the space between the first fan and the second fan, thereby reducing the production cost and facilitating assembly.

A heat exchanger such as a radiator or a condenser is 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, a cooling fan capable of forcibly blowing air to the heat exchanger is installed.

The fan is generally accommodated in a shroud, a motor or the like for rotating the fan is fixed to the shroud, and the shroud is mounted and fixed in position. Thus, the fan shroud assembly formed by the 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.

Meanwhile, a DC brush motor of a fan shroud assembly of an automobile using an existing engine as a driving source has a structure in which when a low-voltage DC voltage is applied from a low-voltage battery, a power is transmitted to the brush, Coil. When an electric current flows through the coil wound around the armature, a rotating force is generated in the armature by electromagnetic interaction with the permanent magnet formed on the field coil, and is transmitted to a cooling fan connected to the armature shaft to drive the fan do.

As described above, in the DC brush motor, the power source of the battery is transmitted to the inside by the frictional contact between the brush and the commutator, and thus, the occurrence of friction friction torque, abrasion and corrosion due to corrosion and malfunction, mechanical or electrical noise, Or the life of the motor due to abrasion is shortened.

And the mechanical friction torque greatly increases the mechanical loss. When a direct current brush motor is used in a cooling fan of a fuel cell vehicle in which a high heat radiation performance is required, high speed and high current are required for driving the cooling fan. When a high current is applied to the direct current brush motor, There is a risk of fire due to sparking, and the motor performance is frequently deteriorated due to the voltage drop.

Accordingly, in the case of a fan motor of a hybrid car being developed recently, there is a tendency to apply a brushless direct current (BLDC) motor in order to increase the cooling performance and improve the fuel efficiency. In this case, the BLDC motor is composed of a motor and an inverter.

In particular, as shown in FIG. 1, in the case of a fan shroud assembly using a dual fan having two fans, a motor for driving two fans is provided, and each inverter is also provided with a high voltage Two cables and two low-voltage cables shall be provided.

As shown in Fig. 2, the fan shroud assembly in which the motor and the inverter are integrated in order to simplify the structure requires two motors and two inverters even if the motor and the inverter are arranged integrally, and two high- Two low-voltage cables are required.

Accordingly, since the fan shroud assembly 10 shown in FIGS. 1 and 2 includes two motors and two inverters, the manufacturing cost of the fan shroud assembly 10 is twice as high as that of a single fan.

Also, the fan shroud assembly distinguishes the left motor and the right motor from s / w only, there is no difference in the form and configuration of the motor and the inverter, and there is a problem that the possibility of assembling is high, there was.

Since the fan shroud assembly includes two high-voltage cables 11 and two low-voltage cables 12, component damage and drive errors may occur when the fan shroud assembly is assembled in the opposite direction. Since the number of cables and components is large, There is a problem that the size restriction is severe.

In the domestic patent application publication No. 2009-0004021 (published on Jan. 12, 2009, entitled: Single motor driven type dual cooling fan device), there are disclosed a driving cooling fan that generates rotational force by using one driving motor, The damping cooling fan is interlocked and rotated through the gear. However, there is a disadvantage that the cooling effect is inferior due to the limitation of the rotation speed of the fan, and the noise generated by the interlocking rotation through the external gear may cause inconvenience to the user , Could not be a fundamental solution.

Korean Patent Laid-Open No. 2009-0004021 (published on January 12, 2009, entitled: Single-motor-driven dual cooling fan device)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a fan motor which comprises a first motor for driving a first fan and an integrated controller for driving a second motor for driving a second fan , And the integrated controller is disposed in the shroud plate portion of the space between the first fan and the second fan, thereby reducing the production cost and providing a fan shroud assembly that is easy to assemble.

In other words, it is an object of the present invention to enable both the first fan and the second fan to be driven by using one integrated controller, and to prevent the first fan-blower and the second fan- The present invention provides a fan shroud assembly capable of achieving both reduction in production cost and improvement in blowing performance by arranging an integrated controller in a planar portion of a space between two fans.

It is also an object of the present invention to provide a stator and stator which are mounted on a first stator and a second stator such that a first connector for connecting the integrated controller to the first motor and the second motor and a second connector are disposed on the first stator and the second stator, 1 is a perspective view of a fan shroud assembly according to a second embodiment of the present invention;

The fan shroud assembly of the present invention includes a first bell mouse 121 and a second bell mouse 122 forming a first blowing part 111 and a second blowing part 112, A first seat portion 131 and a second seat portion 132 formed at a central region of the second balloon portion 112 and the second balloon portion 112 and a second seat portion 132 connected to the first seat mouse 121 and the first seat portion 131 the first stator 141 and the second bell mouth (122) and a second shroud (100) and a second stator (142) connecting the seating portion 132, which; A first fan 210 positioned in the first blowing part 111 of the shroud 100 and rotated through driving of the first motor 211 ; A second fan 220 positioned in the second blowing part 112 of the shroud 100 and rotated through driving of the second motor 221 ; Wherein the fan shroud assembly 1 includes an integrated controller 300 for driving the first motor 211 and the second motor 221, And a controller housing 400 having a controller 300 and disposed on the planar portion 150 of the shroud 100 in a space between the first fan 210 and the second fan 220 .

In addition, the fan shroud assembly 1 includes a first connector 371 to which the integrated controller 300 and the first motor 211 are connected; A second connector 372 to which the integrated controller 300 and the second motor 221 are connected; The first connector 371 is accommodated in the first stator 141 formed between one side of the controller housing 400 and the first motor 211, A first bridge unit mounted on the first stator 141 to be rotatable; And the second connector 372 is received on the second stator 142 formed between the other side of the controller housing 400 and the second motor 221 A second bridge unit mounted on the second stator to be disposed; And is formed to include a plurality of protrusions.

The first bridge portion and the second bridge portion may include the first stator 141 and the second stator 142 at positions where the first connector 371 and the second connector 372 can be formed in the shortest length, Is mounted.

The integrated controller 300 includes a power unit 310 including a high voltage input unit 311 and a low voltage input unit 312 and a power supply unit 310 including a high voltage input unit 311 and a low voltage input unit 312 for driving the first motor 211 and the second motor 221, mode power supply 320 and a CAN (Controller Area Network) communication unit 330 are shared.

The integrated controller 300 includes the high voltage input unit 311 disposed on one side in the height direction of the shroud 100 and the low voltage input unit 312 disposed on the other side of the PCB, And the low voltage cable 382 are assembled in opposite directions to each other.

The fan shroud assembly of the present invention is formed to include a first motor for driving a first fan and an integrated controller for driving a second motor for driving a second fan, It is disposed at the shroud placket portion of the space, thereby reducing the production cost and facilitating assembly.

That is, the fan shroud assembly of the present invention can drive both the first fan and the second fan by using one integrated controller, and at the same time, to prevent the first blowing portion and the second blowing portion from being blocked as much as possible, And the integrated controller can be disposed on the planar portion of the space between the first and second fans, thereby achieving both reduction in production cost and improvement in air blowing performance, and assembly is simple because only one high voltage cable and one low voltage cable are required.

The fan shroud assembly of the present invention further includes a first connector for connecting the integrated controller to the first motor and the second motor, and a second connector for connecting the second connector to the first stator and the second stator so as to be disposed on the first stator and the second stator. The first bridge portion and the second bridge portion to be mounted, so that it is possible to prevent the blowing amount from being reduced as much as possible.

Further, in the fan shroud assembly of the present invention, the high voltage input portion is disposed on one side in the height direction of the shroud in the integrated controller, and the low voltage input portion is disposed on the other side of the shroud, whereby the high voltage cable and the low voltage cable can be assembled in opposite directions There is a possibility that a possibility of a mistake in the assembly process is minimized and an insulation distance on the PCB is easily secured.

1 is a front view of a conventional fan shroud assembly;
2 is a front view of another conventional fan shroud assembly;
3 is a front view of a fan shroud assembly in accordance with the present invention;
4 is a perspective view of a fan shroud assembly in accordance with the present invention.
Figure 5 is a layout of the components on a PCB in an integrated controller of a fan shroud assembly according to the present invention.
6 is a block diagram illustrating an integrated controller configuration of a fan shroud assembly in accordance with the present invention.

Hereinafter, the fan shroud assembly 1 according to the present invention will be described in detail with reference to the accompanying drawings.

The fan shroud assembly 1 according to the present invention is a constituent component of the cooling module and is provided at the front of the vehicle for blowing air and includes a first fan 210, 100, and an integrated controller 300. [

First, a fan shroud assembly 1 according to the present invention will be described with reference to FIGS. 3 and 4. FIG.

The shroud 100 forms a space through which air is blown, and a first fan 210, a second fan 220, and a controller housing 400 are mounted.

The shroud 100 includes a first bell mouse 121 and a second bell mouse 122 forming a first blowing part 111 and a second blowing part 112, A first seat portion 131 and a second seat portion 132 formed at a central region of the second balloon portion 112 and the second seat portion 112 and a second seat portion 132 connected to the first seat portion 121 and the first seat portion 131 And a second stator 142 connecting the second bell mouth 122 and the second seating portion 132. The first stator 141 and the second stator 142 are connected to each other.

The first fan 210 is provided in the first blowing part 111 of the shroud 100 and rotated by driving the first motor 211. The second fan 220 is provided in the second blowing part 112 of the shroud 100 and is rotated by driving the second motor 221.

3 and 4 illustrate a dual-type fan shroud assembly 1 having a first fan 210 and a second fan 220. However, the fan shroud assembly 1 of the present invention is not limited thereto, The present invention is applicable to the first fan 210, the second fan 220, and the shroud 100 in addition to the embodiments shown in the drawings.

In the following, the integrated controller 300 included in the fan shroud assembly 1 of the present invention will be described in detail.

The integrated controller 300 is constructed by mounting various components on a PCB to drive the first motor 211 and the second motor 221, and a separate housing is provided as shown in FIGS. 3 and 4 , And may be formed to be embedded in the interior thereof.

In particular, the integrated controller 300 includes a power supply unit 310 including a high voltage input unit 311 and a low voltage input unit 312, a switching mode power supply (SMPS), and a controller (CAN) And is shared for driving the second motor 221.

The other components are separately provided for driving and controlling the first motor 211 and the second motor 221, and the components requiring high voltage and the parts requiring low voltage, the first motor 211, And connected to the second motor 221, and is properly disposed.

5 and 6, the integrated controller 300 includes a high voltage input unit 311, an SMPS 320, a CAN communication unit 330, a first IPM 341, a second IPM 342, A second Hall sensor signal receiving unit 361 and a second Hall sensor signal receiving unit 362. In addition to this, a plurality of linear And a regulator (Linear regulator).

6 is a block diagram illustrating an operation process for driving one of the first motor 211 and the second motor 221 of the integrated controller 300. Referring to FIG.

First, the high voltage input unit 311 is connected to a high voltage battery for a vehicle, and a DC voltage of about 280 to 290V is inputted. In FIG.

The SMPS 320 converts a high voltage input from the high voltage input unit 311 to a low voltage and is a voltage fluctuation device using a switching circuit.

The first IPM (Intelligent Power Module) 341 converts a DC power of a high voltage battery for a vehicle into an AC power and supplies a three-phase sinusoidal power to a stator of the first motor 211. The IGT (Insulated Gate Bi-Polar Transistors), six gate drivers, and ICs with various functions are formed in a modular manner, and the voltage conversion is performed by switching operation of the IGBTs.

That is, when the DC power of high voltage is applied through the high voltage input unit 311, the integrated controller 300 converts the three-phase sin wave power into the three-phase sinewave power source through the switch operation of the IGBT in the first IPM 341, 211 to the stator coil.

When the three-phase rotating magnetic field is generated by a change in the electromagnetic energy in the stator, the rotor rotates to drive the first fan 210 under the influence of the magnetic fluxes of the permanent magnets of the rotor and the rotor.

The second IPM 342 has the same configuration as the first IPM 341 and converts the power supplied through the high voltage input unit 311 to supply the three-phase sine wave power to the second motor 221.

The first hall sensor signal receiving unit 361 and the second hall sensor signal receiving unit 362 sense the electromagnetic field of the magnet attached to the rotors of the first motor 211 and the second motor 221 to detect the position of the rotor It will help.

The first DSP signal 351 and the second DSP signal 352 determine the position of the rotor from the first hall sensor signal receiving unit 361 and the second hall sensor signal receiving unit 362, And applies a PWM signal to the first IPM 341 and the second IPM 342.

The low voltage input unit 312 is connected to the high voltage battery for the vehicle and receives a DC voltage of about 12V, and is connected to the CAN communication unit 330 in FIG.

The CAN communication unit 330 receives the CAN signal from the vehicle and transmits the CAN signal to the first DSP 351 and the second DSP 352 and transmits the forward signal to the vehicle from the first DSP 351 and the second DSP 352 .

The CAN communication unit 330, the SMPS 320, the high voltage input unit 311 and the low voltage input unit 312 are shared by the first motor 211 and the second motor 221, Part in the longitudinal direction on the PCB.

The SMPS 320, the first IPM 341 and the second IPM 342 of the integrated controller 300 are parts requiring high voltage and are connected to the CAN communication part 330, the first hall sensor 361, Hall sensor 362, first DSP 351 and second DSP 352 are components requiring low voltage.

5, the fan shroud assembly 1 of the present invention includes a high voltage input portion 311 disposed on one side in the height direction of the shroud 100 in the integrated controller 300, Since the low voltage input unit 312 is disposed, the high voltage cable 381 and the low voltage cable 382 can be assembled in opposite directions to each other, so that the possibility of occurrence of a mistake during the assembling process is extremely reduced. Is advantageous.

5, components for driving the first motor 211 are disposed on the left side of the integrated controller 300, components for driving the second motor 221 are disposed on the right side of the integrated controller 300, 1 motor 211 and the second motor 221, respectively.

3 and 4, the integrated controller 300 is disposed on the shroud 100 planar portion 150 of the space between the first fan 210 and the second fan 220 .

The fan shroud assembly 1 includes a first connector 371 to which the integrated controller 300 and the first motor 211 are connected and a second connector 372 to which the integrated controller 300 and the second motor 221 are connected A second connector 372, and a first bridge part 410 and a second bridge part 420. [

The first bridge unit 410 has the first connector 371 accommodated therein and a first stator 141 formed between one side of the integrated controller 300 and the first motor 211, And may be mounted on the first stator 141 so that the first connector 371 is disposed.

The second bridge portion 420 includes the second connector 372 therein and is rotatably supported on the other side of the integrated controller 300 and on the second stator 142 formed between the second motor 221 The second connector 372 may be mounted on the second stator 142. [

The first bridge portion 410 and the second bridge portion 420 may be formed in the shape of a tube having a tube shape or a side open only to the first stator 141 and the second stator 142, And can be mounted to the first stator 141 and the second stator 142 by a separate coupling means such as a clip coupling, or may be mounted by various coupling methods and means.

The first bridge portion 410 and the second bridge portion 420 are connected to the first stator 141 and the second stator portion at positions where the first connector 371 and the second connector 372 can be formed to have the shortest length, And the second stator 142, as shown in Fig.

Accordingly, the fan shroud assembly 1 of the present invention can drive both the first fan 210 and the second fan 220 by using the single integrated controller 300, and at the same time, The integrated controller 300 is disposed on the planar portion 150 of the space between the first fan 210 and the second fan 220 in order to prevent the first fan 111 and the second fan 112 from being blocked as much as possible, Reduction in blowing performance and improvement in blowing performance can be achieved, and assembly is simple because only one high-voltage cable 381 and one low-voltage cable 382 are required.

The fan shroud assembly 1 of the present invention also includes a first bridge portion 372 for allowing the first connector 371 and the second connector 372 to be disposed on the first stator 141 and the second stator 142 410 and the second bridge portion 420, it is possible to prevent the blowing amount from being reduced as much as possible.

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: Shuraud
210: first fan 220: second fan
111, 112: a first power-rich section, a second power-rich section
121 and 122: a first bell mouse, a second bell mouse
131, 132: a first seating portion, a second seating portion
141, 142: first stator, second stator
150:
211, 221: first motor, second motor
300: Integrated controller
310:
311: High voltage input unit 312: Low voltage input unit
320: SMPS
330: CAN communication section
341, 342: a first IPM, a second IPM
351, 352: a first DSP, a second DSP
361, 362: a first hall sensor signal receiving unit, a second hall sensor signal receiving unit
371, 372: a first connector, a second connector
381, 382: High-voltage cable, low-voltage cable
410, 420: a first bridge portion, a second bridge portion

Claims (11)

A first bell mouse 121 and a second bell mouse 122 which form the first blowing unit 111 and the second blowing unit 112 and the first blowing unit 111 and the second blowing unit 112 A first stator 141 connecting the first bell mouth 121 and the first seating part 131 to each other and a second seating part 132 formed at a center area of the first bell mouth 121 and the second seating part 132, , And a second stator (142) connecting the second bell mouth (122) and the second seating part (132 ) . A first fan 210 positioned in the first blowing part 111 of the shroud 100 and rotated through driving of the first motor 211 ; A second fan 220 positioned in the second blowing part 112 of the shroud 100 and rotated through driving of the second motor 221 ; Wherein the fan shroud assembly (1)
The fan shroud assembly (1)
And an integrated controller (300) for driving the first motor (211) and the second motor (221).
The method according to claim 1,
The integrated controller (300)
Is disposed on the shroud (100) planar portion (150) of the space between the first fan (210) and the second fan (220).
The method according to claim 1,
The fan shroud assembly (1)
A first connector 371 to which the integrated controller 300 and the first motor 211 are connected;
A second connector 372 to which the integrated controller 300 and the second motor 221 are connected;
The first connector 371 is housed in the first stator 141 formed between one side of the integrated controller 300 and the first motor 211 and the first connector 371 is accommodated therein. A first bridge part 410 mounted on the first stator 141 so as to be parallel to the first stator 141;
The second connector 372 is accommodated in the second stator 142 formed between the other end of the integrated controller 300 and the second motor 221 A second bridge portion 420 mounted on the second stator 142 so that the second stator 142 may be mounted; The fan shroud assembly comprising:
The method of claim 3,
The first bridge part 410 and the second bridge part 420
Wherein the first connector (371) and the second connector (372) are mounted to the first stator (141) and the second stator (142) at positions where the shortest length can be formed.
The method according to claim 1,
The integrated controller (300)
A power supply unit 310 including a high voltage input unit 311 and a low voltage input unit 312, a switching mode power supply (SMPS) 320, a CAN And a controller area network communication unit (330) is shared.
6. The method of claim 5,
The integrated controller (300)
Wherein the power supply unit (310), the SMPS (320), and the CAN communication unit (330) are disposed at the central portion of the PCB.
The method according to claim 6,
The integrated controller (300)
Wherein the high voltage input part (311) is disposed on one side of the PCB in the height direction of the shroud (100), and the low voltage input part (312) is disposed on the other side of the shroud (100).
8. The method of claim 7,
The integrated controller (300)
Wherein the high voltage cable (381) and the low voltage cable (382) are assembled in opposite directions to each other.
The method according to claim 6,
The integrated controller (300)
A first IPM 341 for supplying a three-phase sinusoidal power source to the stator of the first motor 211;
A second IPM 342 for supplying a three-phase sinusoidal power source to the stator of the second motor 221;
A first motor three-phase coupling portion 391 coupled to three phases of the first motor 211;
A second motor three-phase coupling portion 392 coupled to three phases of the second motor 221;

A first hall sensor signal receiving unit 361 receiving a signal from the hall sensor mounted on the first motor 211 and sensing the position of the rotor;
A second hall sensor signal receiving unit 362 receiving a signal from the hall sensor mounted on the second motor 221 and sensing the position of the rotor;
A first DSP 351 for determining the position of the rotor from the first Hall sensor signal receiving unit 361 and applying a PWM signal to the first IPM 341;
A second DSP 352 for determining the position of the rotor from the second Hall sensor signal receiving unit 362 and applying a PWM signal to the second IPM 342; The fan shroud assembly comprising:
10. The method of claim 9,
The integrated controller (300)
And a structure shared on the PCB for driving the first motor 211 and the second motor 221
A first IPM 341, a first DSP 351 and a first Hall sensor signal receiving unit 361 are provided on one side of the first IPM 341, the first motor 3 phase coupling unit 391,
And the second IPM 342, the second motor 3-phase coupling unit 392, the second IPM 342, the second DSP 352 and the second Hall sensor signal receiving unit 362 are provided on the other side. Wood assembly.
10. The method of claim 9,
The integrated controller (300)
The first IPM 341, the first motor 3-phase coupling unit 391, the first IPM 341, the first DSP 351 and the first hall sensor signal receiving unit 361 are connected to the first motor 211 on the PCB substrate, And is disposed on a side adjacent to the first side,
The second IPM 342, the second motor 3-phase coupling unit 392, the second IPM 342, the second DSP 352 and the second Hall sensor signal receiving unit 362 are connected to the second motor 221 on the PCB substrate, Wherein the fan shroud assembly is disposed adjacent to the fan shroud assembly.

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