Active air flap apparatus for vehicle

Abstract

The present invention relates to an active air flap apparatus for a vehicle, the active air flap apparatus comprising: a housing having an opening formed therein; a flap that is rotatably provided in the housing and operates to open and close the opening; a driving unit, provided in the housing, for operating the flap; and a rotation fixing unit that operates in accordance with the driving unit and supports the flap to fix the rotation of the flap when the flap closes the opening. The active air flap apparatus opens and closes an opening of a radiator grille of the vehicle.

Description

Active air flap device for vehicles

[0001] The present invention relates to an active air flap device for a vehicle, and more particularly, to an active air flap device for a vehicle that opens and closes an opening in a radiator grille of a vehicle.

[0002] Typically, a radiator grill is installed at the front of a vehicle to allow air to enter the engine room of the vehicle, and the air that enters through the radiator grill is used to cool various coolers such as radiators.

[0003] However, when a vehicle is driven at high speed, the flow of air flowing into the engine room through the radiator grill acts as resistance to the vehicle's driving.

[0004] To solve this, active air flaps that allow the radiator grill to open and close have recently been applied.

[0005] In the case of conventional active air flaps, there was a problem in that the flap was pushed when aerodynamic or external force was applied to it because it simply operated to open and close the radiator grill, resulting in a decrease in structural stability.

[0006] In particular, since the flap operates to close the radiator grill when the vehicle is traveling at high speed, the aerodynamic force and external force acting on the flap when closing are large, and a structure is needed to prevent the flap from being pushed at this time.

[0007] Accordingly, the present invention has been devised to solve the above-mentioned problems, and its purpose is to provide an active air flap device for a vehicle that prevents the flap from being pushed when aerodynamic or external force is applied while the flap has its opening closed.

[0008] In addition, the purpose is to provide an active air flap device for a vehicle that can prevent the flap from being pushed back by supporting the flap at the rear of the flap while the flap is closed.

[0009] In addition, the purpose is to provide an active air flap device for a vehicle that can reduce the number of parts and cost without requiring a separate additional driving part, as the rotation prevention part that prevents the flap from being pushed is operated by the driving part that operates the flap.

[0010] In addition, the anti-rotation part has a rotation fixed link part and an auxiliary link part that support one side and the other side of the flap, respectively. The purpose is to provide an active air flap device for a vehicle in which the link structure is simplified and the number of processes and parts can be reduced as the rotation fixed link part and the auxiliary link part are operated by a loader shaft.

[0011] In order to solve the above technical problem, an active air flap device for a vehicle according to an embodiment of the present invention may include: a housing having an opening formed therein; a flap rotatably provided in the housing and operated to open and close the opening; a driving unit provided in the housing and operating the flap; and a rotation fixing unit operated according to the driving unit and supporting the flap to fix rotation of the flap when the flap closes the opening.

[0012] The flap may include a flap shaft arranged along the longitudinal direction and having both ends rotatably coupled to the housing, and the rotation fixing portion may include a protrusion provided at an end opposite to the end of the flap provided with the flap shaft; and a rotation fixing link portion that supports the protrusion or operates to be spaced apart from the protrusion, depending on the driving portion.

[0013] The above-mentioned rotary fixing member may further include an auxiliary protrusion provided on the flap and spaced apart from the protrusion in the longitudinal direction; and an auxiliary link member that supports the auxiliary protrusion or operates spaced apart from the auxiliary protrusion according to the driving member.

[0014] The above-mentioned rotating fixed part may further include a loader shaft that is connected to the driving part and transmits the driving force of the driving part, and has the rotating fixed link part and the auxiliary link part provided at each end.

[0015] The above driving unit may include a driving unit housing; a motor unit disposed inside the driving unit housing; and a driving link unit disposed inside the driving unit housing and connected to an output shaft of the motor unit to simultaneously operate the flap and the rotating fixed unit.

[0016] The above driving link unit may include a driving plate having a driving plate rotation shaft connected to an output shaft of the motor unit, and a flap driving pin and a loader driving pin at positions spaced apart from the driving plate rotation shaft; a first flap link unit linked to the flap driving pin; a second flap link unit having both ends linked to the first flap link unit and the flap, respectively, to rotate the flap; a first loader link unit linked to the loader driving pin; and a second loader link unit having both ends linked to the first loader link unit and the rotation fixing unit, respectively, to rotate a loader shaft of the rotation fixing unit.

[0017] The above driving unit housing may have a stopper groove formed into which the second flap link portion is inserted, and the stopper groove may have a first support side surface on which the second flap link portion is supported when the flap is closed, and a second support side surface on which the second flap link portion is supported when the flap is opened.

[0018]

[0019] According to the active air flap device for a vehicle of the present invention, one or more of the following effects are achieved.

[0020] First, according to the present invention, there is an effect of preventing the flap from being pushed when aerodynamic or external force is applied while the flap has its opening closed.

[0021] Additionally, by supporting the flap from the rear of the flap while the flap is closed, there is an effect of preventing the flap from being pushed.

[0022] In addition, since the rotation prevention part that prevents the flap from being pushed is operated by the driving part that operates the flap, there is no additional driving part, and the number of parts and cost can be reduced.

[0023] In addition, the anti-rotation part has a rotation fixed link part and an auxiliary link part that support one side and the other side of the flap, respectively. Since the rotation fixed link part and the auxiliary link part are operated by the loader shaft, the link structure is simplified, and there is an effect of reducing the process and number of parts.

[0024] FIG. 1 is a front view of an active air flap device for a vehicle according to an embodiment of the present invention.

[0025] Figure 2 is an exploded perspective view of Figure 1.

[0026] Figure 3 is a back view of Figure 1.

[0027] Figure 4 is a side view of Figure 1.

[0028] Figure 5 is a drawing of the motor unit and the second case separated from Figure 4.

[0029] Figure 6 is an enlarged view of the stopper home in Figure 5.

[0030] Fig. 7 is a perspective view showing the inside of a driving unit of an active air flap device for a vehicle according to an embodiment of the present invention.

[0031] FIGS. 8 and 9 are perspective views showing the link connection structure of an active air flap device for a vehicle according to an embodiment of the present invention.

[0032] FIG. 10 is a drawing showing a rotation fixing structure of a rotation fixing link and a protrusion of an active air flap device for a vehicle according to an embodiment of the present invention.

[0033] FIG. 11 and FIG. 12 are drawings showing the rotational fixing structure of the auxiliary link portion and the auxiliary protrusion portion of the active air flap device for a vehicle according to an embodiment of the present invention.

[0034] Figure 13 is a drawing showing the flap in Figure 1 when it is open.

[0035] Figure 14 is a drawing showing the flap in Figure 5 when it is open.

[0036] Figure 15 is an enlarged view of the stopper home in Figure 14.

[0037] Figure 16 is a drawing showing the flap in Figure 10 when it is open.

[0038] Figure 17 is a drawing showing the flap in Figure 11 when it is open.

[0039] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0040] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0041] When describing the present invention, terms such as "first" and "second" may be used to describe various components. However, these components may not be limited by these terms. These terms are used solely to distinguish one component from another. For example, without departing from the scope of the present invention, the first component could be referred to as the "second component," and similarly, the second component could also be referred to as the "first component."

[0042] The term "and / or" may include any combination of multiple related listed items or any one of multiple related listed items.

[0043] When a component is referred to as being "connected" or "connected" to another component, it can be understood that it is directly connected or connected to that other component, but that there may be other components in between. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it can be understood that there are no other components in between.

[0044] The terminology used in this application is solely for the purpose of describing specific embodiments and is not intended to limit the present invention. Singular expressions may include plural expressions, unless the context clearly dictates otherwise.

[0045] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, and can be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0046] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries, such as those defined in the present application, may be interpreted to have a meaning consistent with their meaning in the context of the relevant technology, and, unless explicitly defined herein, may not be interpreted in an idealized or overly formal sense.

[0047] In addition, the following examples are provided to more completely explain to a person having average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation.

[0048]

[0049] FIG. 1 is a front view of an active air flap device for a vehicle according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, FIG. 3 is a rear view of FIG. 1, FIG. 4 is a side view of FIG. 1, FIG. 5 is a drawing of a state in which a motor unit and a second case are separated from FIG. 4, FIG. 6 is an enlarged view of a stopper home in FIG. 5, FIG. 7 is a perspective view showing the inside of a driving unit of an active air flap device for a vehicle according to an embodiment of the present invention, FIGS. 8 and 9 are perspective views showing a link connection structure of an active air flap device for a vehicle according to an embodiment of the present invention, FIG. 10 is a drawing showing a rotation fixing structure of a rotation fixing link unit and a protrusion unit of an active air flap device for a vehicle according to an embodiment of the present invention, and FIGS. 11 and 12 are drawings showing a rotation fixing structure of an auxiliary link unit and an auxiliary protrusion unit of an active air flap device for a vehicle according to an embodiment of the present invention, and FIG. 13 shows a drawing showing the flap in the open state in FIG. 1, FIG. 14 shows a drawing showing the flap in the open state in FIG. 5, FIG. 15 shows an enlarged view of the stopper home in FIG. 14, FIG. 16 shows a drawing showing the flap in the open state in FIG. 10, and FIG. 17 shows a drawing showing the flap in the open state in FIG. 11.

[0050] As illustrated in FIGS. 1 to 17, an active air flap device (10) for a vehicle according to the present invention includes a housing (100) having an opening (110), a flap (200) rotatably provided in the housing (100) and operated to open and close the opening (110), a driving unit (400) provided in the housing (100) and operating the flap (200), and a rotation fixing unit (500) that operates according to the driving unit (400) and supports the flap (200) when the flap (200) closes the opening (110) to fix the rotation of the flap (200).

[0051]

[0052] For example, the active air flap device (10) for a vehicle of the present invention is configured to open and close a radiator grille provided at the front of a vehicle, and the housing (100) is a device provided in the radiator grille to open or close the opening of the radiator grille to control the flow of air. Of course, the active air flap device (10) for a vehicle may be installed in a location other than the radiator grille and provided to control the flow of air.

[0053] The housing (100) may be formed in a square frame shape with an opening (110) formed through the center.

[0054] And, the housing (100) is installed with a flap (200) that can be rotated, the flap (200) is placed inside the opening (110), and the opening (110) can be opened and closed by the flap (200).

[0055] For example, FIGS. 1 and 3 to 5 show the closed state of the flap (200), and FIGS. 13 and 14 show the open state of the flap (200). According to FIGS. 1 and 3 to 5, in the closed state of the flap (200), the flap (200) is arranged parallel to the housing (100) to close at least a portion of the opening (110). That is, the front surface of the housing (100) and the front surface of the flap (200) are arranged parallel. In addition, according to FIGS. 13 and 14, in the open state of the flap (200), the flap (200) is arranged to rotate so that the opening area of ​​the opening (110) becomes wider, and the front surface of the flap (200) can guide air passing through the opening (110). That is, at least a portion of the front surface of the housing (100) and the front surface of the flap (200) can be arranged vertically.

[0056] This housing (100) may be provided with a flap shaft coupling portion (120) that supports a flap shaft (211) to be described later, and a loader shaft coupling portion (130) that supports a loader shaft (510) to be described later.

[0057] In addition, the housing (100) has a support frame (300) attached to the rear to support the flap shaft (211) and the loader shaft (510) together with the support frame (300).

[0058] The support frame (300) is fastened to one side of the rear of the housing (100) and can support a flap (200) fastened to the housing (100) and a rotation fixing member (500) to be described later. This support frame (300) can be fastened to the housing (100) through a separate fastening member (not shown), and for example, the fastening member can be provided as a bolt or a screw.

[0059] With this configuration, the flap shaft (211) of the flap (200) can be rotatably provided by being fastened to the flap shaft coupling portion (120) of the housing (100), and the loader shaft (510) can be rotatably provided by being fastened to the loader shaft coupling portion (130) of the housing (100).

[0060] Specifically, the housing (100) is provided with two flap shaft coupling portions (120) to support both ends of the flap shaft (211), one of which may be provided in the form of a circular hole and the other may be provided in the form of a hole but open to the rear. Accordingly, the flap shaft (211) may be fastened to the housing (100) by inserting the other end through the other opening of the flap shaft coupling portion (120) while inserting one end into one of the flap shaft coupling portions (120).

[0061] In addition, the housing (100) is provided with two loader shaft coupling portions (130) to support both ends of the loader shaft (510), one of which may be provided in the form of a circular hole and the other may be provided in the form of a hole but open to the rear. Accordingly, the loader shaft (510) may be fastened to the housing (100) by inserting one end into one of the loader shaft coupling portions (130) and the other end through the other opening of the loader shaft coupling portion (130).

[0062] In addition, the support frame (300) may be provided with a first shaft support (310) that closes another opening of the flap shaft coupling portion (120) when fastened to the housing (100), and may be provided with a second shaft support (320) that closes another opening of the loader shaft coupling portion (130). The support frame (300) may be fastened to one side of the housing (100) so that the first shaft support portion (310) and the second shaft support portion (320) support the flap shaft (211) and the loader shaft (510), and with this configuration, the flap shaft (211) and the loader shaft (510) may be fastened to the housing (100) and provided to be rotatable.

[0063] That is, the other end of the flap shaft (211) and the other end of the loader shaft (510) are rotatably connected between the housing (100) and the support frame (300).

[0064] The flap (200) is rotatably provided in the housing (100) and operates to open and close the opening (110).

[0065] This flap (200) is composed of a flap body (210) and a flap cover (220), and the front surface may be the front surface of the flap cover (220). The flap body (210) and the flap cover (220) may be formed in a plate shape and may be formed to close the opening (110) of the housing (100).

[0066] The flap body (210) may be provided with a flap shaft (211) at the rear and a flap cover (220) may be coupled at the front.

[0067] The flap cover (220) is formed in the same shape as the front part of the flap body (210) and can be fastened to the flap body (210) to form the exterior of the flap (200).

[0068] The flap body (210) may be provided with a flap shaft (211) arranged along the longitudinal direction and having both ends rotatably coupled to the housing. Specifically, the flap (200) may have a flap shaft (211) arranged along the left-right direction at the lower rear portion.

[0069] The driving unit (400) is provided in the housing (100) and is connected to the flap (200) to operate the flap (200). The driving unit (400) may be configured to include a driving unit housing (410), a motor unit (420), and a driving link unit (430).

[0070] The drive unit housing (410) has a motor unit (420) and a drive link unit (430) arranged therein, and can be installed on one side of the longitudinal direction of the housing (100).

[0071] The drive unit housing (410) is configured by combining a first case (411) and a second case (414), and can be formed to surround the motor unit (420) and the drive link unit (430). The first case (411) is formed in a plate shape and is installed on one side of the longitudinal direction of the housing (100), and is provided to cover the opening of the second case (414). The second case (414) is formed in a body shape that is open on one side, and the first case (411) is combined therewith, and the opened opening is closed.

[0072] Fig. 5 shows a state in which the second case (414) and the motor unit (420) are separated while the driving unit (400) is installed in the housing (100), and Fig. 7 shows a state in which the first case (411) is separated from the driving unit (400).

[0073] The first case (411) and the second case (414) are connected through a fastening member (not shown), and the fastening member may be, for example, a bolt or a screw.

[0074] The motor unit (420) may include a motor, and a drive link unit (430) may be connected to the output shaft of the motor unit (420). For example, the motor unit (420) may include a motor and a reduction unit connected to the motor, and the reduction unit may be connected to a plurality of gears to increase the output of the motor.

[0075] The driving link unit (430) is connected to the output shaft of the motor unit (420) and operates by receiving the driving force of the motor, and can transmit the driving force of the motor unit (420) to the flap (200) and the rotating fixed unit (500) to be described later. That is, since the driving link unit (430) transmits the driving force of the motor unit (420) to both the flap (200) and the rotating fixed unit (500), the flap (200) and the rotating fixed unit (500) can operate simultaneously when the motor unit (420) is driven.

[0076] Referring to FIGS. 5 and 7, the drive link unit (430) may be configured to include a drive plate (431), a flap connection unit, and a loader connection unit.

[0077] The driving plate (431) is connected to the output shaft of the motor unit (420) and transmits the driving force of the motor unit (420) to each of the flap connection unit and the loader connection unit. The driving plate (431) may be provided with a driving plate rotation shaft (431a) connected to the output shaft of the motor unit (420), a flap drive pin (431b) connected to the flap connection unit, and a loader drive pin (431c) connected to the loader connection unit.

[0078] The driving plate (431) rotates around the driving plate rotation axis (431a), and the driving plate rotation axis (431a) is directly connected to the output shaft of the motor unit (420) or connected through a gear to receive the driving force of the motor unit (420).

[0079] The flap drive pin (431b) and the loader drive pin (431c) are arranged at positions spaced apart from the drive plate rotation axis (431a) of the drive plate (431). In addition, the flap drive pin (431b) and the loader drive pin (431c) are arranged spaced apart from each other.

[0080] For example, the driving plate (431) may be formed in a circular shape, and may have a driving plate rotation axis (431a) provided at the center and a flap driving pin (431b) and a loader driving pin (431c) provided at the edges. In addition, the flap driving pin (431b) and the loader driving pin (431c) may be arranged to be spaced apart from each other in the circumferential direction.

[0081] A flap connecting portion is rotatably connected to the flap driving pin (431b), and specifically, one end of the first flap link portion (432) is rotatably connected.

[0082] A loader connecting part is rotatably connected to the loader drive pin (431c), and specifically, one end of the first loader link part (434) is rotatably connected.

[0083] The flap connecting portion is provided between the driving plate (431) and the flap shaft (211) to transmit the driving force of the motor portion (420) to the flap shaft (211), and may be composed of a first flap link portion (432) and a second flap link portion (433) that are linked.

[0084] The first flap link portion (432) is formed in a bar shape, and one side can be linked to the flap driving pin (431b), and the other side can be linked to the second flap link portion (433).

[0085] The second flap link part (433) is rotatably installed in the housing (100), and one side can be linked to the other side of the first flap link part (432), and the other side can be coupled to the flap shaft (211). This second flap link part (433) has a flap shaft coupling part (433a) to which the flap shaft (211) is coupled, and the rotation center of the second flap link part (433) is arranged to coincide with the rotation center of the flap shaft (211). Here, the second flap link part (433) is rotatably installed in the housing (100) with the flap shaft coupling part (433a), and the flap shaft coupling part (433a) penetrates the first case (411) and the housing (100) and is coupled to the flap shaft (211). Accordingly, the second flap link part (433) and the flap shaft (211) rotate together.

[0086] That is, the second flap link portion (433) is linked at both ends to the first flap link portion (432) and the flap (200), thereby rotating the flap (200).

[0087] The loader connecting part is provided between the driving plate (431) and the loader shaft (510) to transmit the driving force of the motor part (420) to the loader shaft (510), and may be composed of a first loader link part (434) and a second loader link part (435) that are linked.

[0088] The first loader link portion (434) is formed in a bar shape, and one side can be linked to the loader drive pin (431c), and the other side can be linked to the second loader link portion (435).

[0089] The second loader link part (435) is rotatably installed in the housing (100), one side is linked to the other side of the first loader link part (434), and the other side can be coupled to the loader shaft (510). The second loader link part (435) has a loader shaft coupling part (435a) to which the loader shaft (510) is coupled, and the rotation center of the second loader link part (435) is arranged to coincide with the rotation center of the loader shaft (510). Here, the loader shaft coupling part (435a) of the second loader link part (435) is rotatably installed in the housing (100), and the loader shaft coupling part (435a) penetrates the first case (411) and the housing (100) to be coupled to the loader shaft (510). Accordingly, the second loader link (435) and the loader shaft (510) rotate together.

[0090] That is, the second loader link (435) is linked at both ends to the first loader link (434) and the rotary fixing part (500), thereby rotating the loader shaft (510) of the rotary fixing part (500).

[0091] Meanwhile, the active air flap device (10) for a vehicle may be provided with an angle limiting structure so that the flap (200) rotates by a predetermined angle. That is, when the flap (200) is closed, the flap (200) is arranged in the up-down direction to close the opening (110) of the housing (100), and when the flap (200) is opened, the flap (200) is arranged in the front-back direction to completely open the opening (110) of the housing (100).

[0092] Accordingly, the flap (200) can be rotated and positioned precisely in a predetermined open position or a predetermined closed position.

[0093] For example, referring to FIGS. 5 and 6, the rotation restriction structure may include a stopper home (412) formed on the inner surface of the first case (411).

[0094] The first case (411) has a drive link (430) arranged on the inner surface and can be fixed by having the outer surface pressed against the side of the housing (100).

[0095] The stopper home (412) is provided so that the second flap link part (433) is inserted and rotated, and has a first support side (412a) on which the second flap link part (433) is supported when the flap (200) is closed, and a second support side (412b) on which the second flap link part (433) is supported when the flap (200) is opened.

[0096] Specifically, the stopper home (412) is formed by being sunken in the inner surface of the first case (411), and the second flap link part (433) is inserted and provided to be rotatable. In addition, the stopper home (412) has a first support side (412a) and a second support side (412b) formed on the inner surface, and the first support side (412a) and the second support side (412b) are formed to form a rotation angle of the second flap link part (433). In addition, the first support side (412a) and the second support side (412b) are formed to form a rotation angle of the flap (200).

[0097] And, as illustrated in FIG. 6, when the flap (200) is closed, the second flap link portion (433) is supported by the first support side (412a) and stops rotating any further. Accordingly, the flap (200) can be positioned at a predetermined closing position and the opening (110) can be accurately closed.

[0098] In addition, as illustrated in FIG. 15, when the flap (200) is opened, the second flap link portion (433) is supported by the second support side (412b) and stops rotating any further. Accordingly, the flap (200) can be positioned at a predetermined opening position, and the opening (110) can be accurately opened.

[0099] Additionally, the first case (411) may have a link insertion home (413) into which the second loader link portion (435) is inserted.

[0100] The link insertion home (413) is provided so that the second loader link part (435) is inserted and rotated, and has a first side (413a) and a second side (413b) on the inner surface.

[0101] The second loader link (435) is arranged adjacent to the first side (413a) but spaced apart from the first side (413a), as shown in FIG. 5, when the flap (200) is closed, and is arranged adjacent to the second side (413b) but spaced apart from the second side (413b), as shown in FIG. 14, when the flap (200) is opened.

[0102] With this structure, the driving link (430) can further rotate the second loader link (435) after the second flap link (433) is seated in the stopper home (412).

[0103] The rotation fixing member (500) operates according to the driving member (400) and supports the flap (200) when the flap (200) closes the opening (110) to fix the rotation of the flap (200). This rotation fixing member (500) supports the flap (200) when the flap (200) closes the opening (110) to prevent the flap (200) from being pushed.

[0104] The rotating fixture (500) supports a portion that is separated from the flap shaft (211) of the flap (200). The rotating fixture (500) supports an end opposite to the end of the flap (200) where the flap shaft (211) is provided. For example, the flap (200) may have a flap shaft (211) arranged along the longitudinal direction at the lower end, and both longitudinal edges of the upper end may be supported by the rotating fixture (500).

[0105] In addition, the rotary fixing member (500) has at least one of a rotary fixing link member (520) that supports one side of the flap (200) when the flap (200) is closed and an auxiliary link member (530) that supports the other side.

[0106] The flap (200) may be provided at an end opposite to the end provided with the flap shaft (211), and may be provided with a protrusion (212) and an auxiliary protrusion (213) that are spaced apart from each other along the axial direction of the flap shaft (211). That is, the protrusion (212) and the auxiliary protrusion (213) are provided spaced apart from each other in the longitudinal direction and may be arranged at the corners of the flap (200). Accordingly, the flap (200) may be supported at the four corners and rotated when closed.

[0107] The rotating fixed link (520) operates to support the protrusion (212) or to be spaced apart from the protrusion (212) depending on the driving unit (400).

[0108] Additionally, the auxiliary link (530) operates to support the auxiliary protrusion (213) or to be spaced apart from the auxiliary protrusion (213) depending on the driving unit (400).

[0109] In addition, since the rotating fixed part (500) has a loader shaft (510) that connects the rotating fixed link part (520) and the auxiliary link part (530), a driving part for driving each of them is unnecessary, and the rotating fixed link part (520) and the auxiliary link part (530) can be operated using the driving part (400) that operates the flap (200).

[0110] The loader shaft (510) is connected to the driving unit (400) to transmit the driving force of the driving unit (400), and is provided with a rotationally fixed link unit (520) and an auxiliary link unit (530) at each end.

[0111] Referring to FIGS. 8 and 9, the loader shaft (510) is provided with a rotationally fixed link portion (520) and an auxiliary link portion (530) at both ends, and the rotationally fixed link portion (520) and the auxiliary link portion (530) support the flap (200) or are separated from the flap (200) according to the rotation of the loader shaft (510).

[0112] Specifically, the rotating fixed link (520) may be configured to include a loader bar (521) and a rotating link (522).

[0113] The loader bar (521) is fixed on one side to one end of the loader shaft (510) and connected to a rotation link (522) on the other side. The loader bar (521) may be provided integrally with the loader shaft (510) on one side and may rotate around the axis of the loader shaft (510). In addition, the loader bar (521) is provided with a connecting pin (521a) connected to the rotation link (522) on the other side.

[0114] The rotary link (522) is installed in the housing (100) so as to be rotatable around the rotary link rotation axis (522a), and is linked with the loader bar (521) and rotates when the loader bar (521) rotates.

[0115] The rotary link (522) has a slide hole (522c) into which a connecting pin (521a) is inserted and moves. The slide hole (522c) is formed in the shape of a long hole, and the connecting pin (521a) is inserted and moves.

[0116] For example, a rotary link (522) may be provided with a rotary link rotation axis (522a) at one end, a support member (522b) that supports a protrusion member (212) at the other end, and a slide hole (522c) may be provided between them.

[0117] The support member (522b) is formed by protruding from the end of the rotary link (522) and supports the protrusion member (212) or is separated from the protrusion member (212) according to the rotation of the loader shaft (510).

[0118] At this time, the loader bar (521) and the rotary link (522) are arranged to be spaced apart from the flap (200) in the left-right direction, and the support part (522b) is formed to be long in the left-right direction at the end of the rotary link (522) and can be arranged to overlap the flap (200) in the left-right direction.

[0119] FIG. 10 is a drawing showing the state of the rotational fixed link (520) when the flap (200) is closed. Referring to FIG. 10, the support (522b) supports the protrusion (212) at the rear of the flap (200) and supports the upper end of the flap (200) forward, thereby preventing the upper end of the flap (200) from moving rearward.

[0120] FIG. 16 is a drawing showing the state of the rotation fixed link (520) when the flap (200) is opened. Referring to FIG. 16, the loader bar (521) rotates in accordance with the rotation of the loader shaft (510), causing the connecting pin (521a) to move along the slide hole (522c) and rotate the rotation link (522), whereby the support (522b) moves upward and away from the protrusion (212). Accordingly, the flap (200) can move rearward as the support (522b) supporting the upper portion is separated from the protrusion (212), and the flap (200) can be opened.

[0121] At this time, since the operating angle of the rotating fixed part (500) is greater than the operating angle of the flap (200), when the flap (200) is operated from an open state to a closed state according to the driving part (400), the flap (200) first rotates to the closed position, and at the same time, the rotating fixed part (500) operates to a position that supports the flap (200). Conversely, when the flap (200) is operated from a closed state to an open state according to the driving part (400), the rotating fixed part (500) operates first and separates from the flap (200), and at the same time, the flap (200) rotates to the open position.

[0122] That is, the flap (200) and the rotary fixing member (500) operate simultaneously, but in the operation of closing the flap (200), the flap (200) operates first, and in the operation of opening the flap (200), the rotary fixing member (500) operates first.

[0123] The auxiliary link unit (530) may be configured to include an auxiliary loader bar (531) and a connecting link (532).

[0124] The auxiliary loader bar (531) is fixed to one end of the loader shaft (510) on one side and connected to a connecting link (532) on the other side. The auxiliary loader bar (531) may be provided integrally with the loader shaft (510) on one side and may rotate around the axis of the loader shaft (510). In addition, the auxiliary loader bar (531) is provided with a connecting hole (531a) on the other side that is connected to the connecting link (532).

[0125] The connecting link (532) is installed in the housing (100) so as to be rotatable around the connecting link rotation axis (532a), and is linked to the auxiliary loader bar (531) and rotates when the auxiliary loader bar (531) rotates.

[0126] The connecting link (532) may be provided with an auxiliary connecting pin (532c) that is inserted into the connecting hole (531a) and moves.

[0127] For example, a connecting link (532) may be provided with an auxiliary connecting pin (532c) on one end and an auxiliary support member (532b) that supports an auxiliary protrusion member (213) on the other end, and a connecting link rotation shaft (532a) may be provided between them.

[0128] The auxiliary support member (532b) is the other end of the connecting link (532), and supports the auxiliary protrusion member (213) or is separated from the auxiliary protrusion member (213) according to the rotation of the loader shaft (510). In addition, the auxiliary protrusion member (213) is formed by protruding a portion of the upper end of the flap (200) rearward, and has a mounting surface (213a) on which the auxiliary support member (532b) is mounted. The mounting surface (213a) may be formed to be inclined at the end of the auxiliary protrusion member (213), and is formed to be inclined downward as it goes toward the rear.

[0129] FIG. 11 is a drawing showing the state of the auxiliary link part (530) when the flap (200) is closed. Referring to FIG. 11, the auxiliary support part (532b) supports the auxiliary protrusion part (213) at the rear of the flap (200) and supports the upper part of the flap (200) forward, thereby preventing the upper part of the flap (200) from moving rearward.

[0130] Additionally, referring to FIG. 12, the length from the first point (a1), which is the center of the flap shaft (211), to the second point (a2), which is the point where the auxiliary support (532b) of the auxiliary protrusion (213) is supported, and the length from the second point (a2) to the third point (a3), which is the center of the connecting link rotational axis (532a), are added together to be longer than the length from the first point (a1) to the third point (a3). Therefore, in the current state, the upper part of the flap (200) cannot rotate rearward, and the flap (200) is prevented from being pushed.

[0131] And, FIG. 17 is a drawing showing the state of the auxiliary link part (530) when the flap (200) is opened, and referring to FIG. 17, the auxiliary loader bar (531) rotates according to the rotation of the loader shaft (510), so that the auxiliary connecting pin (532c) moves along the connecting hole (531a) and rotates the connecting link (532), and accordingly, the auxiliary support part (532b) is separated from the auxiliary protrusion (213) and moves rearward and upward. Accordingly, the flap (200) can move rearward as the auxiliary support part (532b) supporting the upper part is separated from the auxiliary protrusion (213), and the flap (200) becomes capable of opening.

[0132] Although the present invention has been described in detail through specific examples, this is for the purpose of specifically explaining the present invention, and the present invention is not limited thereto, and it is clear that the present invention can be modified or improved by a person having ordinary knowledge in the relevant field within the technical spirit of the present invention.

[0133] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

Claims

1. Housing with an opening formed; A flap rotatably provided in the housing and operable to open and close the opening; A driving unit provided in the housing and operating the flap; and A rotation fixing part that operates according to the above driving part and supports the flap when the flap closes the opening to fix the rotation of the flap; An active air flap device for a vehicle including:

2. In paragraph 1, The above flap, It has a flap shaft arranged along the longitudinal direction and having both ends rotatably connected to the housing, The above rotating fixture, a protrusion provided at an end opposite to the end of the flap shaft of the flap; and An active air flap device for a vehicle, characterized in that it includes a rotating fixed link that supports the protrusion or operates apart from the protrusion, according to the driving unit.

3. In paragraph 2, The above rotating fixture, An auxiliary protrusion provided on the flap and spaced apart from the protrusion in the longitudinal direction; and An active air flap device for a vehicle, characterized in that it further includes an auxiliary link portion that supports the auxiliary protrusion or operates to be spaced apart from the auxiliary protrusion, according to the driving portion.

4. In paragraph 3, The above rotating fixture, An active air flap device for a vehicle, characterized in that it further includes a loader shaft connected to the driving unit and transmitting the driving force of the driving unit, and having the rotating fixed link unit and the auxiliary link unit provided at each end.

5. In paragraph 1, The above driving part, Drive unit housing; A motor unit disposed inside the above driving unit housing; and An active air flap device for a vehicle, characterized in that it includes a driving link unit disposed inside the driving unit housing and connected to the output shaft of the motor unit to simultaneously operate the flap and the rotating fixed unit.

6. In paragraph 5, The above driving link part, A drive plate having a drive plate rotation shaft connected to the output shaft of the motor section, and a flap drive pin and a loader drive pin at positions spaced apart from the drive plate rotation shaft; A first flap link portion linked to the flap driving pin; A second flap link portion, each end of which is linked to the first flap link portion and the flap, and rotates the flap; A first loader link part linked to the loader drive pin; and An active air flap device for a vehicle, characterized in that it includes a second loader link portion, each end of which is linked to the first loader link portion and the rotary fixing portion, thereby rotating the loader shaft of the rotary fixing portion.

7. In paragraph 6, The above drive unit housing, A stopper home is formed into which the second flap link portion is inserted, The above stopper home is, An active air flap device for a vehicle, characterized in that it comprises a first support side on which the second flap link portion is supported when the flap is closed, and a second support side on which the second flap link portion is supported when the flap is opened.

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