KR101714381B1

KR101714381B1 - Active Air Flap

Info

Publication number: KR101714381B1
Application number: KR1020110023860A
Authority: KR
Inventors: 소원섭; 김재용; 박성욱; 공태윤
Original assignee: 한온시스템 주식회사
Priority date: 2011-03-17
Filing date: 2011-03-17
Publication date: 2017-03-09
Also published as: KR20120106034A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active air flap for regulating cooling air flowing into a heat exchanger for a vehicle. More specifically, the present invention relates to an active air flap, The present invention relates to an active air flap to which both sides are applied as a closed structure.
The active air flap according to the present invention can prevent the door from being released due to an external force or malfunction of the actuator, thereby preventing a malfunction of the active air flap which may be caused by the detachment of the door, Thereby preventing the secondary damage caused by the secondary damages.

Description

Active Air Flap

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active air flap for regulating cooling air flowing into a heat exchanger for a vehicle. More specifically, the present invention relates to an active air flap, The present invention relates to an active air flap to which both sides are applied as a closed structure.

Generally, in an engine room of a vehicle, various heat exchangers such as a radiator, an intercooler, an evaporator, a condenser, and the like for cooling each component in the vehicle such as an engine or the like, Respectively. Such heat exchangers generally have a heat exchange medium therein, and the heat exchange medium inside the heat exchanger and the air outside the heat exchanger exchange heat with each other, thereby cooling or dissipating heat. Therefore, in order for the various heat exchangers in the vehicle engine room to operate stably, it is natural that outside air should be supplied smoothly into the engine room. Hereinafter, the heat exchangers provided for cooling the vehicle parts or the vehicle interior as described above are collectively referred to as heat exchangers.

In recent years, automobile development tends to reduce the number of components and processes in order to improve productivity. In order to improve productivity, many parts are assembled to form an assembly, assembled in an assembly line, That is, a technique of modularization has been proposed. As a representative example of the module, a front end module in which a bumper including a heat exchanger, a head lamp, and a bumper beam stay is assembled and modularized can be mentioned.

1 is an exploded perspective view of a front end module, and FIG. 2 is a conventional AAF exploded perspective view. FIG. 3 is a perspective view of a conventional AAF, and FIG. 4 is a partial enlarged view of FIG.

The front end module includes a front panel 11 and a support panel 12 extending from both ends of the front panel at a predetermined angle. A heat exchanger 30 is mounted on the rear side of the front panel 11 of the carrier 10 and a head lamp mounting portion 12a formed on the support panel 12 of the carrier 10 And a bumper 20 is mounted in front of the carrier 10 to be modularized.

The heat exchanger 30 may be modularized by a cooling module including a heat exchanger 30 and disposed behind the front panel 11 and may be formed in various ways according to the design. FIG.

In the front end module shown in FIG. 1, in order to smoothly flow outside air to the heat exchanger 30 provided in the inside of the carrier 10, an opening 21 are formed.

The opening 21 may be formed simply as a hole. In order to prevent foreign matter from entering the opening 21, a net or grill structure may be formed on the opening 21 And the like.

When the vehicle travels, the outside air is rapidly introduced into the opening 21, so that heat exchange can be smoothly performed in the heat exchanger 30 provided inside the carrier 10.

However, external air inflow due to the opening portion 21 does not contribute to improvement of aerodynamic force and fuel efficiency until the initial start of the vehicle and the engine temperature rise within a certain range.

Also, when the vehicle travels at a high speed, the flow of the air flowing into the opening portion 21 is also very fast, and thus the air resistance becomes very large. Since the air resistance is increased as the vehicle running speed increases, the vehicle engine must generate more energy, resulting in poor fuel economy.

The conventional opening 21 is a fixed structure in which only holes are formed and it is basically impossible to control the flow rate of the air flowing in the running of the vehicle and so on. There is a problem that the problem of reduction in fuel consumption due to an increase in the resistance of the air flowing into the engine room during driving can not be solved.

2, an active air flap (not shown) is disposed between the opening 21 and the heat exchanger 30 to regulate the amount of air introduced from the opening 21, ) 40 (hereinafter referred to as AAF).

The AAF 40 seals the opening 21 at the time of initial startup and until the engine temperature is within a certain range to help improve aerodynamics and fuel economy. When the engine temperature becomes a certain temperature or more, the opening 21 is opened It helps to cool the engine, and when the vehicle is running at high speed, the air flow rate is appropriately controlled to reduce the air resistance.

The AAF 40 includes a first air duct 41 positioned at the rear end of the opening 21 and guiding air introduced through the opening 21 and a second air duct 41 positioned on the first air duct 41, A door 42 which is coupled to the rear end of the first air duct 41 and which is rotatably coupled to the door 42, An air duct 43 and an actuator 44 provided on the second air duct 43 to rotate the door 42 by rotation; .

3 and 4, the shaft 42a, which is positioned on both sides of the door 42, is fitted into the insertion portion 43a formed on the second air duct 43. As shown in FIGS. However, the structure of the inserting portion 43a for inserting the inserting portion 43a into the shape of the door 42 formed by injection molding is applicable to a hole structure in which one side is closed, while the other has a groove type open structure.

The AAF having the above structure may excessively exert an external force on the AAF 40 or a malfunction of the actuator 44 so that the door 42 may depart from the abnormal state and the AAF 40 may lose its function, There is a problem that the air conditioner function may cause a problem, as well as the debris of the door 42 may enter the engine room and cause secondary damage.

Therefore, it is required to develop the technology of AAF that can prevent the detachment of the door 42 of the AAF due to the external force.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above problems, and it is an object of the present invention to provide a door structure for an automotive air flap, in which a door is detachably mounted, That is, in the form of a hole.

An active air flap according to the present invention comprises a carrier (10) comprising a front panel (11) and a support panel (12) extending from both ends of the front panel (11) A bumper 20 having an opening 21 through which air flows to the rear of the carrier 10 and a heat exchanger 30 mounted on the rear side of the front panel 11 of the carrier 10, The active air flap 400 is disposed at the rear end of the opening 21 and flows through the opening 21 in the active air flap 400. In the active air flap 400, An air duct 430 for guiding air; A door 420 provided inside the air duct 430 and opening or closing the air duct 430 by rotating a shaft 420a formed at both ends of the air duct 430 by a rotation axis; And an actuator (440) provided in the air duct (430) and rotating the door (420) by rotation; A coupling hole 430a having a closed hole structure is formed on the air duct 430 so that the shaft 420a can be inserted and rotated and the door 420 is divided into a plurality of pieces, 500, respectively.

The door 420 includes a first door 421 located at one side and a second door 422 located at the other side of the first door 421, A first protrusion 510 protruding from the other side of the first door 421; A second protrusion 520 protruding from one side of the second door 422; And a fixing pin 530 fitted to the first protrusion 510 and the second protrusion 520 so that the first door 421 and the second door 422 are engaged with each other; And a control unit.

The door 420 may include a first door 421 located at one side and a second door 422 located at the other side of the first door 421, A first coupling hole 550a formed at one side of the other side of the first door 421 or one side of the second door 422; A second engaging hole 560a protruding outward in the longitudinal direction on one surface of the other side of the first door 421 or one side of the second door 422 so as to correspond to the first engaging hole 550a, ; And a screw 570 inserted into the first coupling hole 550a and the second coupling hole 560a so that the first door 421 and the second door 422 are coupled to each other; And a control unit.

A link 420b is formed on the door 420 on the upper side or the lower side of the shaft 420a in order to rotate the door 420 by being connected to the actuator 440. [

The active air flap according to the present invention can prevent the door from being released due to an external force or malfunction of the actuator, thereby preventing a malfunction of the active air flap which may be caused by the detachment of the door, Thereby preventing the secondary damage caused by the secondary damages.

1 is an exploded perspective view of a FEM
FIG. 2 is a cross-
3 is a cross-
4 is a partial enlarged view of Fig. 3
5 is an AAF exploded perspective view of the present invention
Figure 6 is a partial perspective view of the present invention.
Fig. 7 is a partial enlarged view of Fig. 6
Fig. 8 is a perspective view of the door exploded view of the first embodiment of the present invention.
9 is a perspective view of a door of a first embodiment of the present invention.
Fig. 10 is a perspective view of the door exploded view of the second embodiment of the present invention.
11 is a perspective view of the door of the second embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1, the present invention is characterized by comprising a carrier 10 comprising a front panel 11 and a support panel 12 extending from both ends of the front panel 11, A bumper 20 having an opening 21 for allowing air to flow to the rear of the carrier 10 and a heat exchanger 30 mounted on the rear of the front panel 11 of the carrier 10 to form a core The present invention relates to an active air flap (hereinafter, referred to as an AAF) 400 provided in a front end module formed by a front end module to open or close the opening 21, An opening 21 through which the air flows may be formed so that the heat exchanger 30 is air-cooled.

The opening 21 is formed in the bumper 200 to allow the air to flow into the heat exchanger 30 smoothly. However, the amount of air entering the vehicle at the time of traveling at a high speed is also increased more than necessary, The air acts as a resistor, which causes the vehicle fuel consumption to be reduced.

The opening portion 21 is divided into an upper opening portion formed on the upper side of the bumper and a lower opening portion formed on the lower side of the bumper. The AAF 400 is shown as a single structure in the drawing, The AAF 400 may be installed in both the upper opening and the lower opening.

5 to 7, the AAF 400 according to the present invention has a structure capable of opening or closing the opening 21 as required, and is located at the rear end of the opening 21, An air duct 430 for guiding air introduced through the air duct 21; A door 420 formed in the air duct 430 and opening or closing the air duct 430 according to the rotation; And an actuator 440 provided in the air duct 430 and rotating the door 420 by rotation.

As shown in the drawing, the AAF 400 of the present invention may include a guide duct 410 provided in front of the air duct 430.

The guide duct 410 may be formed in a cylindrical shape having front and rear openings. The guide duct 410 is located behind the opening 21 and guides the air flowing along the opening 21.

The air duct 430 is coupled to the rear end of the guide duct 410. The actuator 440 is installed at the center of the air duct 430. The door 420 is installed on both sides of the actuator 440 on the air duct 430. A coupling hole 430a is formed at one side and the other side of the air duct 430 where the door 420 is installed so that the shaft 420a is coupled to the door 420a so as to be rotatable about the shaft 420a .

The door 420 may have a conventional door configuration including a blade formed in the longitudinal direction and a shaft 420a projecting outward at both ends of the blade. The door 420 is located on the air duct 430 and opens or closes the air flowing through the opening 21. The blade 420 is rotated by the rotation of the shaft 420a with the shaft 420a as a rotation axis, It is opened when it is parallel with the air flow direction, and is closed when it is vertical.

The actuator 440 may be provided at the center of the air duct 430. The actuator 440 is connected to the door 420 and rotates the door 420 according to an instruction from the control unit. That is, the door 420 is rotated by rotating the actuator 440 in one direction to open the air duct 430 and rotate the door 420 in the other direction to rotate the air duct 430 Can be closed. Since the actuator 440 is a conventional motor, detailed description thereof will be omitted.

7, the door 420 of the present invention may have a closed hole structure, as shown in FIG. 7, so that the coupling hole 430a of the air duct 430, into which the both ends of the door 420 are inserted, ) Has the following configuration.

- Example 1

8 and 9, the door 420 includes a first door 421 located at one side and a first door 421 located at the other side of the first door 421, The second door 422 may be separated from the second door 422 by a predetermined distance. And a coupling means 500 for coupling and fixing the first door 421 and the second door 422.

Therefore, a shaft 420a may be formed at one end of the first door 421 and at the other end of the second door 422. A link 420b is formed below the shaft 420a on the second door 422 and connected to the actuator 440 to rotate the door 420. And the link 420b is driven through an arm (not shown) connected to the driving shaft of the actuator 440. [

The engaging means 500 includes a first protrusion 510, a second protrusion 520, and a fixing pin 530. The first protrusion 510 protrudes from one side of the first door 421 and the upper end of the first protrusion 510 can be bent toward one side of the first door 421. That is, the first protrusions 510 are formed in a shape of 'A' in section.

The second protrusion 520 protrudes from one side of the second door 422 and the upper end of the second protrusion 520 may be bent toward the other side of the second door 422. That is, the second protrusion 510 is formed in a shape of 'A' in section.

When the first door 421 and the second door 422 come into contact with each other, the first protrusion 510 and the second protrusion 520 are also in contact with each other, and the first protrusion 510 and the second protrusion 520 520) are in contact with each other, the cross section has a "T" shape.

The fixing pin 530 is slidably engaged with the first protrusion 510 and the second protrusion 520 to couple the first door 421 and the second door 422 together. Accordingly, the fixing pin 530 is formed with a coupling groove 531 having a 'T' shape to correspond to the first and second protrusions 510 and 520.

The shaft 420a is inserted into the coupling hole 430a of the air duct 430 while the door 420 is separated from the air duct 430 and is coupled and fixed through the coupling unit 500. [

- Example 2

10 and 11, the door 420 includes a first door 421 located at one side and a first door 421 located at the other side of the first door 421, The second door 422 may be separated from the second door 422 by a predetermined distance. And a coupling means 500 for coupling and fixing the first door 421 and the second door 422.

The engaging means 500 includes a first engaging portion 550, a second engaging portion 560, and a screw 570. The first coupling part 550 protrudes from one surface of the other side of the first door 421 and the first coupling hole 550a for fitting the screw 570 into the first coupling part 550 . A plurality of the first engaging portions 550 may be formed along the other side of the first door 421 in the vertical direction.

The second coupling portion 560 extends from one end of the second door 422 to one side and the second coupling portion 560 is connected to the other side of the first door 421 and the second door 422 A second engaging hole 560a corresponding to the first engaging hole 550a and for engaging the screw 570 is formed. The second engaging portion 560 is formed in the vertical direction along one side of the second door 422 by the number of the first engaging portions 550.

Therefore, when the first door 421 and the second door 422 come into contact with each other, the first engaging portion 550 and the second engaging portion 560 are in contact with each other, The screw 570 is inserted through the screw hole 560a.

The screw 570 is fitted into the first coupling hole 550a and the second coupling hole 560a to couple the first door 421 and the second door 422 together. The screw 570 may be inserted into the first and second coupling holes 550a and 560a such as a rivet or a pin so that the first door 421 and the second door 422 can be engaged with each other. It is obvious that it is possible.

The technical idea should not be interpreted as being limited to the above-described embodiment of the present invention. 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. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.

10: Carrier 11: Front panel
12: Support panel
20: bumper 21: opening
30: Heat exchanger
400: Active air flap
410: Guide duct
420: door 420a: shaft
420b: Link
421: first door 422: second door
430: Air duct
440: Actuator
500: coupling means 510: first protrusion
520: second projection 530:
550a: first coupling hole 560a: second coupling hole
570: Screw

Claims

And a support panel (12) extending from both ends of the front panel (11) and a front panel (11) And a heat exchanger (30) mounted on the rear side of the front panel (11) of the carrier (10) and having a core formed therein, the bumper (20) having an opening (21) In the active air flap 400,
The active air flap (400)
An air duct 430 positioned at a rear end of the opening 21 and guiding air introduced through the opening 21;
A door 420 provided inside the air duct 430 and opening or closing the air duct 430 by rotating a shaft 420a formed at both ends of the air duct 430 by a rotation axis; And
An actuator 440 installed on the air duct 430 and rotating the door 420 by rotation; , &Lt; / RTI &
A coupling hole 430a having a closed hole structure is formed on the air duct 430 so that the shaft 420a can be inserted and rotated,
Wherein the door (420) is configured to be separated into a plurality of doors, and is coupled and fixed through a coupling means (500).

The method according to claim 1,
The door 420 includes a first door 421 located on one side and a second door 422 located on the other side of the first door 421,
The coupling means (500)
A first protrusion 510 protruding from the other side of the first door 421;
A second protrusion 520 protruding from one side of the second door 422; And
A fixing pin 530 fitted to the first protrusion 510 and the second protrusion 520 so that the first door 421 and the second door 422 are engaged;
Wherein the air flap comprises an air filter.

The method according to claim 1,
The door 420 includes a first door 421 located on one side and a second door 422 located on the other side of the first door 421,
The coupling means (500)
A first coupling hole 550a formed at one side of the other side of the first door 421 or one side of the second door 422;
A second engaging hole 560a protruding outward in the longitudinal direction on one surface of the other side of the first door 421 or one side of the second door 422 so as to correspond to the first engaging hole 550a, ; And
A screw 570 inserted into the first engaging hole 550a and the second engaging hole 560a so that the first door 421 and the second door 422 are engaged;
Wherein the air flap comprises an air filter.

The method according to claim 1,
On the door 420,
Wherein a link (420b) is formed on an upper side or a lower side of the shaft (420a) to rotate the door (420) by being connected to the actuator (440).