JP2015101279A - Grille shutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grille shutter device capable of feeding outside air selectively to different flow channels by a single actuator.SOLUTION: A first fin 37 is provided to a first grille opening 33, and a second fin 38 is provided to a second grille opening 34. Each fin is configured to open and close each gille opening repeatedly by rotating a drive shaft 42 of an actuator 40 in either normal direction or reverse direction. The respective fins comprise link mechanisms 60, 60a individually, and each link mechanism is connected to the drive shaft of the actuator via a one-way clutch respectively. By rotating the drive shaft of the actuator in the normal direction, the first fin opens and closes the first grille opening. By rotating the drive shaft of the actuator in the reverse direction, the second fin opens and closes the second grille opening.

Description

  The present invention relates to a grill shutter device. More specifically, the present invention relates to a grill shutter device in which fins are provided in a grill opening for sending outside air into an engine room of a vehicle, and the fins are configured to open and close the grill opening.

  An example of this type of grill shutter device is disclosed in Patent Document 1. The grill shutter device includes a grill opening, a first fin and a second fin for opening and closing the grill opening, and a single actuator for opening and closing these fins. When driven, the fins are configured to open and close the grill opening in synchronization. And in the state which each fin opened, the capacitor | condenser (henceforth AC capacitor) of the air-conditioning equipment arrange | positioned in an engine room, the capacitor | condenser (henceforth HV capacitor) of a hybrid engine equipment, and the engine for cooling A member such as a radiator can be cooled by outside air.

  In current vehicles in general, the opening area of the grill opening is set wide so that sufficient outside air can be sent into the engine room even when the vehicle runs at a low speed. In the grill shutter device of Patent Document 1, since the fins open together when the actuator is driven, outside air is sent into the engine room from the entire grill opening when the vehicle is traveling. Then, both a member that needs to be cooled in the engine room (for example, an AC condenser while using an air conditioner) and a member that does not need to be cooled (for example, a radiator during high-speed running) are cooled.

JP 2011-201439 A

  When outside air is sent into the engine room from the entire grill opening as described above, a large air resistance acts on the vehicle, which may deteriorate the fuel efficiency of the vehicle. As a measure for avoiding such deterioration of the fuel consumption of the vehicle, the grille opening is limitedly opened so as to cool only the members that need to be cooled in the engine room, and the outside air is sent into the engine room. It is possible. In order to make this possible without increasing the number of members, the first fin and the second fin are individually opened and closed by a single actuator, and the outside air is selectively passed to the individual flow paths corresponding to the fins. It is necessary to configure the grill shutter device to feed

  The present invention is intended to solve such a problem, and an object of the present invention is to provide a grille shutter device that can selectively send outside air into different flow paths by a single actuator.

The present invention is for achieving the above object, and is configured as follows.
A fin is provided at the grill opening for sending outside air into the engine room, and the fin is configured to repeatedly open and close the grill opening through the operation of the link mechanism by rotating the drive shaft of the actuator. In this grill shutter device, the actuator can drive the drive shaft to rotate in both forward and reverse directions, and the fin is composed of a first fin and a second fin. The first fin and the second fin can send outside air into individual flow paths in the engine room in a state where the grill opening is opened. Each of the first fin and the second fin includes a link mechanism, and each of the link mechanisms is connected to a drive shaft of the actuator through a one-way clutch, and the drive shaft of the actuator is driven to rotate in the forward direction. Thus, the first fin opens and closes the grill opening, and the drive shaft of the actuator rotates in the reverse direction, whereby the second fin opens and closes the grill opening, and the first fin and the second fin Is configured to selectively open and close the grill opening.

More preferably, it is set as the following structures.
The grill opening is constituted by a first grill opening and a second grill opening, and the first grill opening and the second grill opening are arranged at different positions from each other, and each of them is an individual in the engine room. The first fin opens and closes the first grill opening, and the second fin opens and closes the second grill opening.

More preferably, it is set as the following structures.
The first fin and the second fin open and close the grill opening by rotating about individual rotation shafts arranged in parallel to the drive shaft of the actuator, and the drive shaft is connected to the drive shaft of the actuator. A turntable that rotates in the center is installed. The link mechanism includes a clutch-side link, a fin-side link, an intermediate link that connects the clutch-side link and the fin-side link and is regulated so as to move linearly. One end of the clutch side link is rotatably connected to the turntable, and one end of the fin side link is fixed to the rotation shaft of the first fin or the second fin, and the other end is the first fin. Alternatively, the intermediate link includes a bearing hole extending toward the end portion fixed to the rotation shaft of the second fin, and one end of the intermediate link is rotatably connected to the clutch side link, and the other end is connected to the fin connection shaft. It is rotatably connected to the fin side link. The fin coupling shaft is fitted into the bearing hole of the fin side link and can move along the bearing hole, and the fin side link can be rotated by the movement, and the rotating disk rotates to rotate the clutch side. When the link moves, the intermediate link moves linearly, and accordingly, the fin connecting shaft moves along the bearing hole, and the fin side link rotates to rotate the first fin or the second fin.

  In the present invention, when the drive shaft of the actuator is rotationally driven in either the forward or reverse direction, either the first fin or the second fin is selectively opened / closed. Two fins can be opened and closed individually. Therefore, it is possible to selectively send outside air into different flow paths corresponding to the fins by a single actuator, and it is possible to selectively cool only the members that are in a timing that requires cooling in the engine room.

  Further, since each fin opening can be individually opened and closed at each grill opening arranged at different positions, for example, by arranging each grill opening at an appropriate different position, for example, between the upper part and the lower part in the engine room It is possible to send outside air to such positions apart from each other and stop the blowing.

  Further, since each fin is rotated by linear movement of the intermediate link, for example, each fin is rotated as compared with the case where each fin is rotated by rotating the intermediate link around the rotation axis of each fin. Can be stabilized. For this reason, it is difficult for the fins to open and close.

It is a schematic sectional drawing of the vehicle front part to which a grill shutter apparatus is applied. It is a front view of a radiator support module. It is the side view which looked at the front part of the radiator support module from the right side. It is explanatory drawing which represented a mode that a 1st fin rotated with the side view corresponding to the upper part side of FIG. It is explanatory drawing which represented a mode that a 1st fin rotated with the side view corresponding to the upper part side of FIG. It is explanatory drawing which represented a mode that a 2nd fin rotates with the side view corresponding to the lower part side of FIG. It is explanatory drawing which represented a mode that a 2nd fin rotates with the side view corresponding to the lower part side of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
First, the front part of the vehicle 1 to which the grill shutter device of the present invention is applied will be described. In the front portion of the vehicle 1 shown in FIG. 1, a bumper reinforcement 22 having a front bumper 20 is assembled to the vehicle body 10. An upper opening 1a and a lower opening 1b are formed above and below the front bumper 20.

  In the front part of the vehicle 1, a radiator support module 30 assembled in the vehicle body 10 is disposed behind the bumper reinforcement 22. Behind the radiator support module 30 is an engine room 100. In the engine room 100, an AC condenser 110, an HV condenser 120, and a radiator 130 for cooling cooling water of an engine (not shown) are arranged.

A duct 31 is formed at the center of the radiator support module 30 (see FIGS. 1 and 2). A grill opening 32 for sending outside air into the engine room 100 is provided above and below the duct 31. The grill opening 32 is configured by a first grill opening 33 located above and a second grill opening 34 located below. In the assembled state shown in FIG. 1, the first grill opening 33 is located behind the upper opening 1a of the vehicle 1 and the second grill opening 34 is located behind the lower opening 1b. Thereby, the taken-in outside air can be sent into the engine room 100.
Each of the first grill opening 33 and the second grill opening 34 communicates with an individual flow path in the engine room 100.

The grill opening 32 includes fins 36 constituted by first fins 37 and second fins 38 (see FIG. 2).
The first grill opening 33 is provided with a first fin 37 that can open and close the opening (see FIGS. 1, 2, and 3). The first fin 37 can rotate between an open position shown in FIGS. 1, 3, and 4 that opens the first grill opening 33 and a closed position shown in FIG. 5 that closes the first grill opening 33. The rotating shaft 37a of the first fin 37 is disposed in parallel with a driving shaft 42 of an actuator 40 described later.

  When the first fin 37 is in the open position, the outside air taken in from the upper opening 1a of the vehicle 1 can be sent to the upper flow path in the engine room 100 (see FIGS. 1, 3 and 4). Thereby, the AC capacitor 110 and the radiator 130 can be cooled. When the first fin 37 is in the closed position (see FIG. 5), the outside air taken in from the upper opening 1a (see FIG. 1) of the vehicle 1 can be blocked from being sent to the upper part in the engine room 100. Thereby, cooling of AC capacitor 110 and radiator 130 can be stopped.

  The second grill opening 34 is provided with a second fin 38 that can open and close the opening (see FIGS. 1, 2, and 3). The second fin 38 is constituted by two fins arranged side by side. Each second fin 38 can rotate between an open position shown in FIGS. 1, 3 and 6 for opening the second grill opening 34 and a closed position shown in FIG. 7 for closing the second grill opening 34. A rotation shaft 38a of each second fin 38 is arranged in parallel with a drive shaft 42 of an actuator 40 described later.

  When each of the second fins 38 is in the open position, the outside air taken in from the lower opening 1b of the vehicle 1 can be sent to the lower flow path in the engine room 100 (see FIGS. 1, 3 and 6). Thereby, the HV capacitor 120 and the radiator 130 can be cooled. When each second fin 38 is in the closed position (see FIG. 7), it is possible to shield the outside air taken in from the lower opening 1b (see FIG. 1) of the vehicle 1 from being sent to the lower part in the engine room 100. Thereby, the cooling of the HV capacitor 120 and the radiator 130 can be stopped.

  The first fin 37 includes a first link mechanism 60, and the second fin 38 includes a second link mechanism 60a (see FIG. 2). The first link mechanism 60 and the second link mechanism 60a will be described in detail in relation to the actuator 40 described later.

  In the radiator support module 30, an actuator 40 is attached to the right side of the duct 31 (see FIGS. 2 and 3). The actuator 40 incorporates a motor (not shown), and the drive shaft 42 can be driven to rotate in both forward and reverse directions by the driving force of the motor. The drive shaft 42 of the actuator 40 protrudes to the left and right of the actuator 40 and rotates in the same direction on the left and right of the actuator 40. In the following description, the clockwise rotation in FIG. 3 is forward rotation, and the counterclockwise rotation in FIG. 3 is reverse rotation.

  On the left and right sides of the actuator 40, rotating plates 50 and 52 that rotate about the drive shaft 42 are individually attached to the drive shaft 42 (see FIGS. 2, 3, and 4). In each of the rotary plates 50 and 52 (see FIGS. 3 and 4), a one-way clutch is configured between each of the drive plates 50a and 52a and each of the driven plates 50b and 52b. Each driven board 50b, 52b selectively rotates with respect to forward and reverse rotation of the drive shaft 42. That is, the driven board 50b on the left side of the actuator 40 rotates only when the drive shaft 42 rotates forward. The driven board 52b on the right side of the actuator 40 rotates only when the drive shaft 42 rotates in the reverse direction.

  On the left side of the actuator 40, the first link mechanism 60 is connected to the drive shaft 42 through a one-way clutch (see FIGS. 2 and 4). The first link mechanism 60 includes a clutch side link 62, an intermediate link 64, and a fin side link 68. The intermediate link 64 includes a first intermediate link 65 and a second intermediate link 66 that are fixed to each other by a fixed shaft F.

  One end of the clutch side link 62 is connected to the driven board 50b so as to be rotatable about the connecting shaft L1 (see FIG. 4). One end of the fin side link 68 is fixed to the rotation shaft 37 a of the first fin 37. The intermediate link 64 connects the clutch side link 62 and the fin side link 68, and one end of the first intermediate link 65 is connected to the clutch side link 62 so as to be rotatable about the connection axis L2. One end of the intermediate link 66 is connected to the fin side link 68 so as to be rotatable about the connection axis L3. The connecting shafts L1, L2, L3 and the fixed shaft F are arranged in parallel to the drive shaft 42.

A long hole-like bearing hole 68a extending toward the side fixed to the rotating shaft 37a of the first fin 37 is formed at the end of the fin side link 68 connected to the second intermediate link 66. Has been. The connecting shaft L3 is fitted into the bearing hole 68a, and the second intermediate link 66 is connected to the fin side link 68. The connecting shaft L3 is engaged with the bearing hole 68a with play, and can move along the bearing hole 68a. When the connecting shaft L3 moves in the bearing hole 68a, the linear movement of the intermediate link 64 and the rotation of the fin side link 68 as described below can be interlocked. This connecting shaft L3 corresponds to the “fin connecting shaft” of the present invention.
As shown in FIG. 4, the intermediate link 64 is regulated so as to linearly move up and down by the guide members G <b> 1 before and after the second intermediate link 66.

  On the right side of the actuator 40, the second link mechanism 60a is connected to the drive shaft 42 through a one-way clutch (see FIGS. 2 and 3). Parts of the second link mechanism 60a that are considered to have the same or equivalent configuration / function as the first link mechanism 60 are denoted by the same reference numerals as those of the first link mechanism 60, and redundant description is omitted.

  In the second link mechanism 60a, an intermediate link 64a is configured by the first intermediate link 65 and the second intermediate link 66a fixed to each other by the fixed shaft F (see FIG. 3). The second intermediate link 66a is rotatably connected to the two fin side links 68 via the connecting shaft L3. Each connecting shaft L3 is inserted into a bearing hole 68a of each fin side link 68.

The end of each fin side link 68 opposite to the side connected to the second intermediate link 66a is fixed to the rotation shaft 38a of each second fin 38, and each second fin 38 is described later. The opening / closing operation is synchronized with the movement of the intermediate link 64a.
As shown in FIG. 3, the intermediate link 64a is regulated to linearly move up and down by guide members G2 before and after the second intermediate link 66a.
The first link mechanism 60 and the second link mechanism 60a described above correspond to the “link mechanism” of the present invention.

The grill shutter device of the present invention includes the grill opening 32, the fin 36, and the actuator 40 described above, and operates as follows.
When the drive shaft 42 is rotationally driven in the forward rotation direction, the driven board 50b on the left side of the actuator 40 rotates and the first link mechanism 60 operates (see FIGS. 4 and 5). FIG. 4 shows a state in which the first fin 37 rotates from the open position, and FIG. 5 shows a state in which the first fin 37 rotates from the closed position.

When the drive shaft 42 rotates forward with the first fin 37 in the open position (see FIG. 4), the clutch-side link 62 moves around the drive shaft 42 and linearly moves the intermediate link 64 upward. Along with this, the connecting shaft L3 rotates the fin side link 68 in the reverse direction around the rotating shaft 37a of the first fin 37 through the contact action with the inner surface of the bearing hole 68a. As the fin side link 68 rotates, the first fin 37 rotates to the closed position (see FIG. 5).
While the first fin 37 rotates from the open position to the closed position, the connecting shaft L3 moves one end from the far end side to the near end side with respect to the rotation shaft 37a of the first fin 37 in the bearing hole 68a. Return to the far end side again.

When the drive shaft 42 rotates forward with the first fin 37 in the closed position (see FIG. 5), the clutch-side link 62 moves around the drive shaft 42 and linearly moves the intermediate link 64 downward. Accordingly, the connecting shaft L3 rotates the fin side link 68 forward about the rotation shaft 37a of the first fin 37 through the contact action with the inner surface of the bearing hole 68a. As the fin-side link 68 rotates, the first fin 37 rotates to the open position (see FIG. 4).
While the first fin 37 rotates from the closed position to the open position, the connecting shaft L3 moves one end from the far end side to the near end side with respect to the rotation shaft 37a of the first fin 37 in the bearing hole 68a. Return to the far end side again.

  In this way, the first fin 37 opens and closes the first grill opening 33 through the operation of the first link mechanism 60 by driving the drive shaft 42 of the actuator 40 in one direction of forward rotation. By continuing the rotation of the drive shaft 42, the opening and closing of the first grill opening 33 is repeated. Note that the second fins 38 do not move during the forward rotation of the drive shaft 42.

  When the drive shaft 42 is rotationally driven in the reverse direction, the driven board 52b on the right side of the actuator 40 rotates and the second link mechanism 60a operates (see FIGS. 6 and 7). FIG. 6 shows a state where each second fin 38 rotates from the open position, and FIG. 7 shows a state where each second fin 38 rotates from the closed position.

When the drive shaft 42 rotates reversely with each second fin 38 in the open position (see FIG. 6), the clutch-side link 62 moves around the drive shaft 42 and linearly moves the intermediate link 64a downward. . Along with this, each connecting shaft L3 rotates each fin side link 68 forward about the rotation shaft 38a of each second fin 38 through the contact action with the inner surface of each bearing hole 68a. As each fin-side link 68 rotates, each second fin 38 rotates to the closed position (see FIG. 7).
While each second fin 38 rotates from the open position to the closed position, each connecting shaft L3 has an end portion close to the rotation shaft 38a of each second fin 38 in the bearing hole 68a from the end portion side far from the end portion side. Move one end to the side and return to the far end again.

When the drive shaft 42 rotates reversely with each second fin 38 in the closed position (see FIG. 7), the clutch-side link 62 moves around the drive shaft 42 and linearly moves the intermediate link 64a upward. . Along with this, each connecting shaft L3 rotates each fin side link 68 in the reverse direction around the rotation shaft 38a of each second fin 38 through the contact action with the inner surface of each bearing hole 68a. As each fin-side link 68 rotates, each second fin 38 rotates to the open position (see FIG. 6).
While each second fin 38 rotates from the closed position to the open position, each connecting shaft L3 has an end portion close to the rotation shaft 38a of each second fin 38 in the bearing hole 68a from the end portion side far from the end portion side. Move one end to the side and return to the far end again.

  As described above, the second fin 38 opens and closes the second grill opening 34 through the operation of the second link mechanism 60a by rotationally driving the drive shaft 42 of the actuator 40 in the reverse direction. By continuing the rotation of the drive shaft 42, the opening and closing of the second grill opening 34 is repeated. Note that the first fin 37 does not move during the reverse rotation of the drive shaft 42.

  In the above-described embodiment, when the drive shaft 42 of the actuator 40 is rotationally driven in the forward direction, the first fin 37 is opened / closed, and when the drive shaft 42 of the actuator 40 is rotationally driven in the reverse direction, each second fin 38 is Since the opening and closing operation is performed, the first fin 37 and the second fin 38 can be individually opened and closed by the single actuator 40. Therefore, it is possible to selectively send outside air into different flow paths corresponding to the fins 37 and 38 by the single actuator 40. In addition, since the fins 37 and 38 can open and close the grill openings 33 and 34 disposed above and below the duct 31, the upper and lower flow paths in the engine room 100 can be opened. It is possible to stop the sending of outside air and the blowing of air. As a result, in the above-described embodiment, the members located in the upper and lower positions in the engine room 100 can be selectively cooled at a timing that requires cooling.

  For example, when the vehicle 1 is traveling at a high speed, a desired amount of outside air is sent into the engine room 100 even when the fins 37 and 38 are in the closed position. The air flow to the EV condenser 120 that does not require cooling is stopped by rotating it to the closed position, and then the first fin 37 is rotated to the open position or the closed position according to the use of the air conditioner. Control cooling. Specifically, the first fin 37 is rotated to the open position when the air conditioner is used, and the first fin 37 is rotated to the closed position when the air conditioner is stopped.

On the other hand, when the vehicle 1 is traveling at a low speed, by rotating each second fin 38 to the open position, sufficient outside air is sent to the flow path on the lower side of the engine room 100 to cool the EV condenser 120. Then, the cooling of the AC capacitor 110 is controlled by rotating the first fin 37 to the open position or the closed position according to the use of the air conditioner.
Note that the radiator 130 is cooled both when the first fins 37 are rotated to the open position and when each second fin 38 is rotated to the open position.

  In the above-described embodiment, since the fins 37 and 38 are configured to rotate by linear movement of the intermediate links 64 and 64a, for example, the intermediate links 64 and 64a are connected to the fins 37 and 38, respectively. The rotation of the fins 37 and 38 can be stabilized as compared with the case where the fins 37 and 38 are rotated by rotating around the rotation shafts 37a and 38a. For this reason, it is difficult for the fins 37 and 38 to open and close.

Although the best mode for carrying out the present invention has been described above with reference to the drawings, this embodiment can be easily changed or modified without departing from the spirit of the present invention.
For example, in the embodiment described above, the driven board 50b on the left side of the actuator 40 rotates only when the drive shaft 42 rotates forward, and the driven board 52b on the right side of the actuator 40 rotates only when the drive shaft 42 rotates reversely. Was set to do. However, the driven board 50b on the left side of the actuator 40 rotates only when the drive shaft 42 rotates in the reverse direction, and the driven board 52b on the right side of the actuator 40 rotates only when the drive shaft 42 rotates forward. You may do it.

  In the above-described embodiment, the rotating disks 50 and 52 are individually attached to the drive shaft 42 on the left and right sides of the actuator 40. However, the two rotary disks 50 and 52 may be attached to the drive shaft 42 in one of the left part and the right part of the actuator 40. In this case, it is necessary to appropriately adjust the dimensions of the drive shaft 42 and to appropriately change the dimensions and installation positions of the link mechanisms 60 and 60a connected to the driven boards 50b and 52b of the respective rotary boards 50 and 52.

  In the above-described embodiment, the grill shutter device is applied to the radiator support module 30 in the front portion of the vehicle 1. However, the grill shutter device can also be applied to, for example, a swing register in an air conditioner in a vehicle compartment, and its application is not limited to the radiator support module 30.

32 Grill opening 33 First grill opening 34 Second grill opening 36 Fin 37 First fin 38 Second fin 40 Actuator 42 Drive shaft 50, 52 Turntable 60 First link mechanism 60a Second link mechanism

Claims (3)

A fin is provided at the grill opening for sending outside air into the engine room, and the fin is configured to repeatedly open and close the grill opening through the operation of the link mechanism by rotating the drive shaft of the actuator. Grill shutter device,
The actuator can drive its drive shaft in both forward and reverse directions,
The fin is constituted by a first fin and a second fin, and the first fin and the second fin can send outside air into individual flow paths in the engine room in a state where the grill opening is opened. Can
The first fin and the second fin individually have a link mechanism,
Each of these link mechanisms is connected to the actuator drive shaft through a one-way clutch,
When the actuator drive shaft is driven to rotate in the forward direction, the first fin opens and closes the grill opening, and when the actuator drive shaft rotates in the opposite direction, the second fin opens and closes the grill opening. A grill shutter device configured such that the first fin and the second fin selectively open and close the grill opening. The grill shutter device according to claim 1,
The grill opening is constituted by a first grill opening and a second grill opening,
The first grill opening and the second grill opening are arranged at different positions from each other, and each lead to a separate flow path in the engine room,
A grill shutter device configured such that a first fin opens and closes a first grill opening, and a second fin opens and closes a second grill opening. The grill shutter device according to claim 1 or 2,
The first fin and the second fin open and close the grill opening by rotating about individual rotation shafts arranged parallel to the drive shaft of the actuator,
A rotary disk that rotates around the drive shaft is attached to the drive shaft of the actuator,
The link mechanism is configured by a clutch side link, a fin side link, an intermediate link that connects the clutch side link and the fin side link, and is regulated to linearly move,
One end of the clutch side link is rotatably connected to the turntable,
One end of the fin side link is fixed to the rotation axis of the first fin or the second fin, and the other end extends toward the end side fixed to the rotation axis of the first fin or the second fin. With bearing holes,
One end of the intermediate link is rotatably connected to the clutch side link, and the other end is rotatably connected to the fin side link by the fin connection shaft. The fin connection shaft is inserted into the bearing hole of the fin side link. Can be moved along the bearing hole, and the fin side link can be rotated by the movement,
When the turntable rotates and the clutch side link moves, the intermediate link moves linearly, and accordingly, the fin connecting shaft moves along the bearing hole and the fin side link rotates to rotate the first fin or the second fin. Grill shutter device configured as above.

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