JP5825821B2 - Air volume control device for automobile - Google Patents

Description

  The present invention relates to an air volume adjusting device for an automobile that adjusts the air volume of an airflow flowing from a front portion of the automobile such as an electric automobile.

  For example, in Patent Document 1, for the purpose of adjusting the amount of ventilation to the radiator, in the variable grill unit disposed in front of the radiator, the variable grill unit includes a grill movably attached to a vehicle body, A thermo wax element that opens and closes the grill by thermal expansion and contraction of the built-in wax, a heater element that expands the wax of the thermo wax element, and energization to the heater element is controlled based on water temperature information of a water temperature sensor attached to the radiator There has been proposed a variable grill unit for a radiator including a control unit.

JP-A-6-10671

  By the way, when the amount of air flowing into the vehicle body is increased during traveling of the automobile, particularly at high speed, the interior of the automobile or the power source may be excessively cooled or rainwater may enter. Further, in the radiator variable grill unit of Patent Document 1, the grill is configured to open and close by the thermal expansion and contraction of the built-in wax. However, this configuration requires various elements, a water temperature sensor, and a control unit. In addition, the apparatus may be complicated, expensive, and increase in weight.

  The present invention has been made in view of the above-described points, and an object of the present invention is to be able to adjust the amount of air flowing into the vehicle body according to the traveling speed of the automobile, and to simplify and reduce the cost of the apparatus. An object of the present invention is to provide an air volume adjusting device for automobiles that can be reduced in weight and weight.

  The air volume adjusting device for an automobile of the present invention includes a blade member disposed so as to open and close an opening through which an airflow flowing from a front portion of the automobile passes, and the blade based on the airflow flowing from the front portion. A rotation support member that rotatably supports the blade member so as to cause the member to rotate to open and close the opening; and a biasing unit that biases the blade member in one rotation direction toward the opening opening position. The blade member has an opening portion between the closing plate portion for closing the opening, the opening portion disposed adjacent to the closing plate portion in the vertical direction, and the closing plate portion in the vertical direction. The rotation support member includes a shaft portion that is rotatably connected to the automobile, and the shaft portion so that the blade member is disposed away from the shaft portion. Linking blade members And the blade member receives the airflow flowing in from the front portion at the receiving plate portion, and the other member toward the opening closed position that resists urging in one rotation direction by the urging means. A rotational force in the rotational direction is generated.

  According to the vehicle air volume adjusting device of the present invention, in particular, the blade member includes a closing plate portion that closes the opening, an opening portion that is disposed adjacent to the closing plate portion in the vertical direction, and a closing plate in the vertical direction. And a support plate portion disposed with an opening portion therebetween. The rotation support member includes a shaft portion that is rotatably connected to the automobile, and a blade member that is separated from the shaft portion. A connecting portion that connects the blade member to the shaft portion so that the blade member is energized when the airflow flowing from the front portion is received by the receiving plate portion. Since a rotational force in the other rotational direction toward the opening closed position against the urging force in one rotational direction by the means is generated, a sufficient amount of ventilation is ensured when the automobile is traveling at a low speed. On the other hand, according to the increase in airflow flowing from the front part Since the opening of the root member can be closed, it is possible to adjust the air flow rate by narrowing the opening when the automobile is traveling at high speed, and therefore, the air flows into the vehicle body according to the traveling speed of the automobile. The air volume can be adjusted and the apparatus can be simplified, reduced in cost, and reduced in weight.

  In the above-described air volume adjusting device for an automobile of the present invention, the urging means includes a weight attached to the rotation support member so that the urging member is given an urging force in one rotation direction toward the opening opening position. May be.

  ADVANTAGE OF THE INVENTION According to this invention, the air volume adjusting device for motor vehicles which can adjust the air volume inflowed into a vehicle body according to the driving speed of a motor vehicle, and can aim at simplification of an apparatus, reduction in price, and weight reduction can be provided. .

FIG. 1 is an explanatory diagram of the use of an example of an embodiment of the present invention. FIG. 2 is a partially enlarged explanatory view related to opening of the air volume adjusting device shown in FIG. FIG. 3 is a partially enlarged explanatory diagram relating to opening closing of the air volume adjusting device shown in FIG. 1. FIG. 4 is an explanatory perspective view of the air volume adjusting device shown in FIG. FIG. 5 is an explanatory plan view of the air volume adjusting device shown in FIG.

  Next, the present invention will be described in more detail based on an example of a preferred embodiment shown in the drawings. The present invention is not limited to these examples.

  1 to 5, an air volume adjusting device 1 for an automobile (hereinafter referred to as an air volume adjusting device 1) rotates in an A direction and a B direction through an opening 5 through which an airflow 4 flowing from a front portion 3 of the automobile 2 passes. The blade member 6 disposed so as to be opened and closed by the air flow, and the blade member 6 so as to cause the blade member 6 to rotate in the A direction and the B direction based on the airflow 4 flowing from the front portion 3. And a urging means 8 for urging the blade member 6 in the A direction toward the opening opening position shown in FIGS. 1 and 2. The vehicle 2 may be an electric vehicle that uses an electric motor as a power source. Reference numeral 9 denotes a ventilation path through which the airflow 4 flowing from the front portion 3 of the automobile 2 passes.

  As shown in FIGS. 1 and 2, the airflow 4 flowing in from the front portion 3 flows into the engine room and the vehicle compartment 10 through the opening 5 when the opening 5 is opened. As shown, when the opening 5 is closed, the inflow into the engine room or the vehicle compartment 10 through the opening 5 is blocked.

  A curved plate-like blade member 6 extending in the lateral direction Y includes a closing plate portion 11 that closes the opening 5, an opening portion 12 that is disposed adjacent to the closing plate portion 11 in the vertical direction Z, and a vertical direction Z. A receiving plate portion 13 is provided between the closing plate portion 11 and the opening portion 12. As a whole, the blade member 6 is convexly convex toward the front end portion 15 in the front-rear direction X of the automobile 2 and is concaved toward the rear end portion 16 in the front-rear direction X of the automobile 2.

  The closing plate portion 11 extends in the lateral direction Y and is raised toward the front end portion side 15 of the automobile 2 as shown in FIG. 3 and a rectangular plate portion 21 disposed above the opening portion 12. And a raised portion 22 formed on the front surface of the plate portion 21. The front surface of the closing plate portion 11 may be curved in a convex shape, and the rear surface thereof may be curved in a concave shape. The closing plate portion 11 is disposed above the air passage 9 when the opening is opened, and is disposed in the air passage 9 when the opening is closed.

  The opening 12 has a rectangular plate portion 23 extending in the horizontal direction Y and disposed below the closing plate portion 11, and a rectangular air hole formed in the plate portion 23 extending in the horizontal direction Y. 24. The plate part 23 is formed integrally with the plate part 21. The front surface of the plate portion may be curved in a convex shape and the rear surface thereof may be curved in a concave shape. The ventilation hole 24 is arranged in the ventilation path 9 when the opening is opened, and is arranged below the ventilation path 9 when the opening is closed.

  The receiving plate portion 13 extends in the lateral direction Y and is disposed below the opening 12 and has a rectangular plate portion 25 and a lower edge of the plate portion 25 protruding toward the front end portion side 15 of the automobile 2. And a convex portion 26 formed in the portion and extending in the lateral direction Y. The front surface of the plate portion 25 receives the airflow 4 flowing from the front portion 3 of the automobile 2 and generates a positive pressure on the front surface side of the plate portion 25. The convex part 26 can generate the positive pressure more suitably.

  The blade member 6 is rotated in the direction A by the urging force of the urging means 8 and is rotationally moved from the opening closed position shown in FIG. 3 toward the opening opening position shown in FIGS. 1 and 2. To open. Further, when the blade member 6 receives the airflow 4 flowing from the front portion 3 by the plate portion 13, a positive pressure is generated on the front side of the plate portion 25, and a rotational moment in the B direction is generated, which is shown in FIGS. 1 and 2. The opening 5 is rotated from the opening opening position toward the opening closing position shown in FIG. 3, thereby closing the opening 5. The vane member 6 is in a stationary state at the opening opening position when the automobile 2 is stopped, and the opening 5 is narrowed by a rotation amount in the B direction corresponding to the airflow 4 caused by the traveling of the automobile 2. ing.

  The rotation support member 7 includes a shaft portion 31 that is rotatably connected to a fitting recess or the like of the automobile 2 in the A direction and the B direction with the axis O as a center, and the blade member 6 extends from the shaft portion 31 to the front end portion of the automobile 2. An arm-shaped connecting portion 32 that connects the blade member 6 to the shaft portion 31 is provided so as to be spaced apart from the side 15. The connecting portion 32 is connected to the closing plate portion 11 of the blade member 6. In this example, two rotation support members 7 are provided, one being connected to one end in the lateral direction Y of the blade member 6 and the other being connected to the other end in the lateral direction Y of the blade member 6. .

  The urging means 8 includes a weight 35 attached to the rotation support member 7 so that the urging force in the A direction toward the opening opening position can be applied to the blade member 6. The weight 35 is attached to the shaft portion 31 so as to be positioned on the rear end portion side 16 of the automobile 2 with respect to the shaft center O. The weight 35 biases the blade member 6 in the A direction based on its own weight, and the blade member 6 biased in this way is rotated in the A direction so as to be disposed at the opening opening position shown in FIGS. Is done.

  The opening / closing operation by the air volume adjusting device 1 of this example will be described below. When the automobile 2 is stopped, the blade member 6 is stationary at the opening open position. When the air flow 4 flowing into the front part 3 is generated during the traveling of the automobile 2, the front end side 15 is positive and the rear end side 16 is negative with respect to the receiving plate part 13 of the blade member 6. Thus, a rotational force in the B direction based on the airflow 4 is applied to the blade member 6, and the blade member 6 rotates in the B direction around the axis O by the rotational force in the B direction based on the airflow 4. Is finally narrowed, and finally the opening 5 is fully closed as shown in FIG. The amount of rotation of the blade member 6 in the B direction increases according to the increase in the air volume of the air flow 4 due to the increase in the traveling speed of the automobile 2, and decreases as the air volume of the air current 4 decreases due to the decrease in the traveling speed of the automobile 2. For this reason, according to the air volume adjusting device 1 of this example, the airflow 4 flowing into the engine room or the passenger compartment 10 can be adjusted to a constant air volume even when the traveling speed of the automobile 2 changes.

  When the rotational force in the B direction based on the air flow 4 is no longer generated, the wing member 6 is provided with the urging force in the A direction by the urging means 8, so that the wing member 6 is opened around the axis O. Start rotation in the A direction toward the position.

  According to the air volume adjusting device 1 described above, the blade member 6 disposed so as to open and close the opening 5 through which the airflow 4 flowing in from the front portion 3 of the automobile 2 passes, and the airflow 4 flowing in from the front portion 3. Based on the rotation support member 7 that rotatably supports the blade member 6 so as to cause the blade member 6 to rotate to open and close the opening 5, and the blade member 6 is urged in the direction A toward the opening opening position. The blade member 6 includes a closing plate portion 11 that closes the opening 5, an opening portion 12 that is disposed adjacent to the closing plate portion 11 in the vertical direction Z, and a vertical direction Z. A support plate 13 disposed between the closing plate 11 and the opening 12, and the rotation support member 7 includes a shaft 31 that is rotatably connected to the automobile 2, and The blade member 6 is arranged away from the shaft portion 31. A connecting portion 32 for connecting the blade member 6 to the shaft portion 31, and the blade member 6 is attached to the airflow 4 flowing from the front portion 3 when the plate portion 13 receives the airflow 4. Since a rotational force in the B direction toward the opening closed position against the urging in the A direction by the urging means 8 is generated, it is possible to ensure a sufficient amount of ventilation when the automobile 2 is traveling at a low speed. On the other hand, since the opening of the blade member 6 can be closed according to the increase of the airflow 4 flowing in from the front portion 3, the opening 5 can be narrowed to adjust the ventilation rate when the automobile 2 is traveling at high speed. Thus, the amount of air flowing into the vehicle body can be adjusted according to the traveling speed of the automobile 2, and the apparatus can be simplified, reduced in cost, and reduced in weight.

DESCRIPTION OF SYMBOLS 1 Air volume adjusting device 2 Automobile 3 Front part 5 Opening 6 Blade member 7 Rotation support member 8 Energizing means

Claims (2)

A blade member arranged to open and close by opening an opening through which an airflow flowing from the front portion of the automobile passes, and a rotation to open and close the opening of the blade member based on the airflow flowing from the front portion A rotation support member that rotatably supports the blade member, and a biasing means that biases the blade member in one rotational direction toward the opening opening position, and the blade member closes the opening. A closing plate portion, an opening portion disposed adjacent to the closing plate portion in the vertical direction, and a receiving plate portion disposed with the opening portion interposed between the closing plate portion in the vertical direction. The rotation support member includes a shaft portion that is rotatably connected to the automobile, and a connection portion that connects the blade member to the shaft portion so that the blade member is disposed away from the shaft portion. and provided, the receiving plate portion, open A plate portion which is arranged below the parts, and includes a protrusion formed on the lower edge of the plate portion and protrudes toward the front side of the automobile, the blade member, flows from the front portion The amount of airflow for an automobile that generates a rotational force in the other rotational direction toward the opening closed position against the biasing in one rotational direction by the biasing means when the airflow is received by the receiving plate portion Adjustment device.   2. The air volume adjusting device for an automobile according to claim 1, wherein the urging means includes a weight attached to the rotation support member so that the urging member is given an urging force in one rotation direction toward the opening opening position. .

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