JP2008120131A - Dust reduction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a dust reduction device capable of restraining dusts such as dirt and pollen from entering a compartment. <P>SOLUTION: This dust reduction device has an air-conditioning unit 3 capable of introducing outside air in a compartment 2. Before a door 8 of the compartment 2 is actuated to open, the air-conditioning unit 3 is actuated and the outside air is introduced in the compartment 2, so as to heighten pressure in the compartment 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dust reduction device that reduces the amount of dust such as dust and pollen that enters a passenger compartment of an automobile.

When an occupant gets into an automobile compartment, dust such as dust and pollen may enter the compartment from the opening of the compartment door. When the vehicle door is opened, the air curtain is formed in the door opening so that dust, pollen and other dust can enter the vehicle interior through the door opening. Suppressed dust reduction devices have been proposed. (For example, patent document 1).
JP 2006-1493 A

  However, in the prior art described in Patent Document 1 described above, by forming an air curtain at the door opening of the automobile, dust such as dust and pollen is prevented from entering the vehicle interior from the door opening. However, if the dust penetrates to the vicinity of the door opening and adheres to, for example, the edge or packing of the passenger compartment door, the air curtain is released after the passenger compartment door is closed. There has been a problem that the dust adhering to the vicinity of the opening enters the vehicle interior.

  Then, an object of this invention is to obtain the dust reduction apparatus which can suppress the penetration | invasion into the vehicle interior of dust, such as dust and pollen.

  The invention according to claim 1 is a dust reduction device having an air conditioning unit (3) capable of introducing outside air into the passenger compartment (2), before the opening operation of the door (8) of the passenger compartment (2) is started. Furthermore, the pressure in the passenger compartment (2) is increased by operating the air conditioning unit (3) to introduce outside air into the passenger compartment (2).

  The invention according to claim 2 is provided with detection means (7) for detecting an operation in which an occupant gets into the passenger compartment (2), and the air conditioning unit (3) is operated by the detection of the detection means (7). The outside air is introduced into the passenger compartment (2) to increase the pressure in the passenger compartment (2).

  According to a third aspect of the present invention, there is provided an air outlet (5A) that opens into the passenger compartment (2) and faces the outer side of the passenger compartment through the opening (8a) of the door (8), and the air conditioning unit ( 3) The air introduced into the passenger compartment (2) by the operation of 3) is blown out from the outlet (5A), and even after the opening operation of the door (8) is started, from the outlet (5A) to the passenger compartment (2). It is characterized in that air is blown toward the passenger who gets inside.

  According to the first aspect of the present invention, the pressure in the vehicle interior is increased in advance before the door opening operation starts, so that when the occupant opens the door, the door opening portion is opened from the vehicle interior by the pressure difference between the vehicle interior and exterior. As a result, air is blown out to form an air flow to the outside of the passenger compartment, so that dust can be prevented from entering the passenger compartment through the door opening, and dust attached to the door opening can also be removed from the passenger compartment. Can be discharged. Thereby, dust intrusion into the vehicle compartment can be suppressed.

  According to the invention of claim 2, the operation when the occupant gets into the passenger compartment, for example, the unlocking operation of the passenger compartment door, is detected by the detection means, so that the operation at the time of entry of the dust reduction device is made more reliable. can do.

  According to the third aspect of the present invention, when the door is opened, air can be blown to an occupant trying to get into the vehicle interior from the air outlet disposed in the door opening. Can be more reliably suppressed. In addition, since the air outlet is open into the vehicle interior and can be used as an air outlet for introducing outside air before the door is opened, air can be blown from the air outlet to increase the vehicle interior pressure with the door closed. The occupant can be sprayed by an extremely simple operation control of continuing the blowing after the door is opened.

  Hereinafter, a dust reducing device according to an embodiment of the present invention will be described in detail with reference to the drawings.

  (First Embodiment) FIG. 1 is a plan view of a vehicle equipped with a dust reducing device according to this embodiment, in which (a) is a view showing a state before the door is opened, and (b) is a door. The figure which shows the state which began to open, (c) is a figure which shows the state from which the dust adhering to the door opening part was excluded by the air flow, FIG. 2 is a vehicle interior by the dust reduction apparatus concerning this embodiment. It is a flowchart which shows the process sequence at the time of suppressing the dust penetration | invasion into a. In FIG. 1A, the internal structure of the passenger compartment is shown with the upper part of the passenger compartment omitted for the sake of explanation.

  The vehicle 1 shown in FIG. 1 is provided with an air conditioning unit 3 that air-conditions the passenger compartment 2 and a drafter (exhaust port) 4 that exhausts air from the rear of the passenger compartment 2. A blower (blower; not shown) capable of sending outside air into the passenger compartment 2 and a filter (not shown) capable of removing foreign substances from the introduced outside air are provided. Air sent from the air conditioning unit 3 is blown out into the passenger compartment 2 from the blowout port 5.

  Moreover, the control part (for example, ECU etc.) 7 of this dust reduction device 6 has a timer T, and includes a door lock release sensor S1, a door open sensor S2, an outside air switching sensor S3, and a battery voltage sensor S4 in the vehicle compartment 2. Each detection signal is input. The control unit 7 has a function as detection means for detecting an operation in which an occupant gets into the vehicle compartment 2.

  And in this embodiment, the penetration | invasion of the dust 10 to the compartment 2 is suppressed according to the process sequence shown in FIG. That is, when the vehicle 1 is stopped and the door 8 is locked, when the occupant performs an operation of releasing the door lock with the remote control switch 9 as the procedure S1, the control unit 7 is triggered by the detection signal from the door lock release sensor S1. Detect door unlocking. Next, the control unit 7 determines whether or not it is in the outside air introduction mode based on the detection signal from the outside air switching sensor S3 as step S2, and when it is in the outside air introduction mode, the air blower of the air conditioning unit 3 is operated as step S3. In addition to introducing outside air, air is blown into the passenger compartment 2 through the outlet 5 to increase the pressure in the passenger compartment 2. In step S3, the timer T of the control unit 7 starts a time measuring operation. Note that the amount of outside air introduced by the air conditioning unit 3 is set (or controlled) larger than the amount discharged from the drafter 4 so that the pressure in the passenger compartment 2 is reliably increased by the operation of the blower of the air conditioning unit 3 here. Is essential. Further, as described above, the air conditioning unit 3 has a filter so that foreign matter is not introduced into the passenger compartment 2 by introduction of outside air.

  Next, when the door 8 is opened in step S4 ((b) and (c) in FIG. 1), air is blown out from the inside of the vehicle compartment 2 through the opening 8a of the door 8 due to a pressure difference inside and outside the vehicle compartment 2. (Air flow A). Therefore, the air flow A prevents the dust 10 from entering the vehicle compartment 2 through the opening 8 a of the door 8, and the dust 10 attached to the opening 8 a of the door 8 is also protected from the vehicle compartment 2. It is discharged outside. Next, when the door 8 is closed as step S5, the control unit 7 detects the closing operation of the door 8, and stops the blower as step S6.

  On the other hand, if it is determined that the outside air introduction mode is not set in step S2, the control unit 7 switches to the outside air introduction mode as step S7, and then proceeds to step S3 to start the operation of the blower. In addition, when a predetermined time (for example, 30 seconds) elapses as the procedure S8 after the time measuring operation is started by the timer T in the procedure S3, the control unit 7 proceeds to the procedure S6 to protect the battery, and the blower is turned on. Stop. Further, if the control unit 7 determines that the battery voltage is equal to or lower than the specified value based on the signal from the battery voltage sensor S4 as step S9 even before the predetermined time has elapsed, the process proceeds to step S6. To stop the blower. The blower is also stopped when an engine (not shown) of the vehicle 1 is started.

  According to this embodiment configured as described above, when the occupant opens the door 8 after operating the door lock release with the remote control switch 9, the dust 10 is removed from the door 8 by the air flow A to the outside of the passenger compartment 2. Intrusion into the passenger compartment 2 through the opening 8a is prevented, and the dust 10 adhering to the opening 8a of the door 8 is also discharged out of the passenger compartment 2. Intrusion of the dust 10 can be suppressed.

  In addition, in this embodiment, although the case where the control part 7 detected the door lock release operation by a passenger | crew's remote control switch 9 as boarding operation was illustrated, it is not limited to this, Other door lock release operation (For example, a lock release operation using a door key or a collation operation between an electronic key held by a passenger and an electronic lock of the vehicle 1) may be detected as a riding operation. Further, it goes without saying that the operation may be started based on a ventilation start instruction from a remote controller or the like, regardless of boarding detection.

  (Second Embodiment) FIG. 3 is a plan view of a vehicle equipped with a dust reducing device according to this embodiment, in which (a) shows a state before the door is opened, and (b) shows a vehicle. The figure which shows the state which blows off air from a blower outlet with respect to the passenger | crew who is going to board a room, (c) is the figure which shows the state from which the dust adhering to a passenger | crew was excluded by the air flow, FIG. These are the perspective views of the door opening part of the vehicle equipped with the dust reduction apparatus concerning this embodiment. The dust reduction device 6A according to this embodiment includes the same components as the dust reduction device 6 according to the first embodiment. Therefore, the same components are denoted by common reference numerals, and redundant description is omitted.

  In the dust reduction device 6A according to the present embodiment, the air outlet 5A is arranged on the upper edge of the opening 8a of the door 8, for example, the ceiling 2a of the passenger compartment 2, and is sent from the blower of the air conditioning unit 3 to the air guide duct 3a. The air thus blown is blown against the occupant trying to get into the passenger compartment 2 from the air outlet 5A. The air guide duct 3a is routed from the instrument panel 2b to the upper edge of the opening 8a via the A pillar. The introduced outside air may be blown out from the blowout port 5 formed in the instrument panel 2b together with the blowout port 5A. Of course, when air is blown out from the air outlet 5A by providing a switching door or the like, air may not be blown out from the air outlet 5 of the instrument panel 2b.

  And also in the dust reduction apparatus 6A concerning this embodiment, a process is performed by the completely same procedure (FIG. 2) as the said 1st Embodiment.

  In this embodiment, as shown in FIGS. 3B and 3C and FIG. 4, when the door 8 is opened, the passenger compartment is opened from the air outlet 5 </ b> A disposed in the opening 8 a of the door 8. Since air can be blown to the occupant trying to get into the passenger compartment 2, the intrusion of the dust 10 into the passenger compartment 2 can be more reliably suppressed.

  Further, the air outlet 5A is opened in the passenger compartment 2 without being blocked by the door 8 even when the door 8 is closed, and can be used as the air outlet 5 for introducing outside air before the door 8 is opened. When the passenger's boarding operation is detected in the same manner as in the first embodiment with the door 8 closed, air is blown out from the outlet 5 in order to increase the pressure in the passenger compartment 2, and the door Even after the door 8 is opened, the occupant can be sprayed by an extremely simple operation control of continuing the blowing until the door 8 is closed or for a predetermined time (for example, 30 seconds). In addition, you may arrange | position 5 A of blower outlets other than the upper edge (for example, a side edge, a lower edge, etc.) of the opening part 8a of the door 8. FIG.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the vehicle provided with the dust reduction apparatus concerning 1st Embodiment of this invention, Comprising: (a) is a figure which shows the state before opening a door, (b) is the state which started opening the door. The figure shown, (c) is a figure which shows the state from which the dust adhering to the door opening part was excluded by the air flow. It is a flowchart which shows the process sequence at the time of suppressing the dust penetration | invasion to a vehicle interior by the dust reduction apparatus concerning embodiment of this invention. It is a top view of the vehicle provided with the dust reduction apparatus concerning 2nd Embodiment of this invention, Comprising: (a) is a figure which shows the state before opening a door, (b) is going to get in a vehicle interior. The figure which shows the state which blows off air from a blower outlet with respect to the passenger | crew who does, (c) is a figure which shows the state from which the dust adhering to a passenger | crew was excluded by the air flow. It is a perspective view of the door opening part of the vehicle equipped with the dust reduction apparatus concerning 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car compartment 3 Air conditioning unit 3a Air guide duct 5, 5A Air outlet 6, 6A Dust reduction device 7 Control part (detection means)
8 Door 8a Opening 10 Dust

Claims (3)

A dust reduction device having an air conditioning unit (3) capable of introducing outside air into the passenger compartment (2),
Before the opening operation of the door (8) of the passenger compartment (2) is started, the air-conditioning unit (3) is operated to introduce outside air into the passenger compartment (2), thereby increasing the pressure in the passenger compartment (2). A dust reduction device characterized by increasing the pressure.   The vehicle is provided with detection means (7) for detecting the movement of a passenger in the passenger compartment (2), and the air conditioning unit (3) is operated by the detection means (7) to enter the passenger compartment (2). 2. The dust reducing device according to claim 1, wherein outside air is introduced to increase the pressure in the passenger compartment (2). Forming an outlet (5A) that opens into the passenger compartment (2) and that faces the outside of the passenger compartment through the opening (8a) of the door (8);
The air to be introduced into the passenger compartment (2) by the operation of the air conditioning unit (3) is blown out from the air outlet (5A), and even after the opening operation of the door (8) is started, the air from the air outlet (5A) The dust reducing device according to claim 1 or 2, wherein air is blown toward an occupant entering the chamber (2).

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