JPH06227248A - Fragrance generating device for car - Google Patents

Abstract

PURPOSE:To provide a fragrance generating device for car which supplies a comfortable fragrant or deodorizing agent to a car cabin together with a wind sent out of an air-conditioner when a driver/passenger(s) has got into the car which, however, refrains from supplying the agent while no person is in the car. CONSTITUTION:A fragrance generation control device 13 receives signal about door opening or door open command operation given from a sensing device 3, puts solenoid valves 12A-12D in the supply condition, and sends a signal about blower drive to a blower control device 20. As a result, a fragrant or deodorizing agent passes a downstream pipe 32 from vessels 11a-11c and flows into a car cabin via a wind duct 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle interior air environment conditioner for supplying an air freshener or a deodorant into a vehicle interior to make the vehicle interior comfortable.

[0002]

2. Description of the Related Art Conventionally, a vehicle scent generating device for supplying an aroma component of a volatile aroma agent into a vehicle compartment by utilizing a ventilation duct of a vehicle air conditioner has been known. For example, Japanese Patent Application Laid-Open No. 2-48217 proposes a device that supplies a scent into the vehicle interior in conjunction with an engine or an air conditioner.

In Japanese Utility Model Publication No. 63-7015,
A device has been proposed in which air in a ventilation duct is discharged to the outside air in conjunction with opening of a door for getting on and off, and at the same time, a fragrance is sprayed into a passenger compartment.

[0004]

However, since the former vehicle scent generating device does not operate until the engine or the air conditioner is turned on, the scent cannot be supplied into the passenger compartment when the passenger gets on the vehicle. Further, in the latter method of discharging the air in the blower duct to the outside air, air cannot be blown into the vehicle interior while the air is being discharged to the outside of the vehicle, so that the function is lost when the air conditioner is started. In addition, there is a problem of cost increase due to parts such as a cylinder for spraying the fragrance into the vehicle interior.

In view of the above problems, the present invention does not supply the fragrance or the deodorant when the occupant is not in the vehicle,
An object of the present invention is to provide a scent generation device for a vehicle, which, when getting into a vehicle, puts a comfortable scent or deodorant on the wind of an air conditioner and supplies the scent to the vehicle interior.

[0006]

In order to achieve the above object, the present invention is provided with a blower duct for introducing blown air to an outlet opening in a vehicle compartment, and provided in the blower duct.
It is applied to a vehicle air conditioner having at least a blower that blows air, and an air flow path that guides the air blown from the blower to the vehicle interior through a blower duct of the air conditioner, or volatilizes inside. Container containing a fragrance or deodorant having a volatile property and interposed in the air passage, and a supply interrupting means for interrupting the supply of the fragrance or deodorant in the container through the air passage. A detecting means for detecting opening of the door for getting on and off or a command operation for opening the door, and a control means for receiving the signal of the detecting means to drive the blower and sending a control signal to the supply connecting / disconnecting means. The technical means of having and.

[0007]

In the vehicular scent generating device of the present invention having the above-mentioned structure, the fragrance or deodorant in the container is supplied from the air flow path to the vehicle interior through the air duct or directly. Here, the control means receives a signal of opening or closing of the door for instructing or instructing operation of opening the door from the detecting means, drives the blower independently of the instruction of the air conditioner, and sets the supply interrupting means to the supply state. To do.

By doing so, the fragrance or deodorant is supplied to the passenger compartment by placing it on the wind of the air conditioner when the door for entrance / exit is opened or when the command operation for opening the door is performed. You can

[0009]

As described above, according to the present invention, the fragrance or deodorant is not supplied to the passenger compartment when the occupant is not in the passenger compartment, and the fragrance or deodorant is already supplied when the occupant gets into the vehicle. Is supplied to the passenger compartment, and a comfortable passenger compartment space can be formed. Further, since the air blown from the blower can be used as it is to supply the fragrance or deodorant, the device can be constructed at low cost.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a vehicular scent generator according to the present invention will be described with reference to FIGS. FIG. 1 is an overall schematic diagram of a scent generation device and a vehicle air conditioner. A vehicular air conditioner 2 to which the scent generating device 1 of the present embodiment is applied includes a blower duct 21 for introducing blown air into the vehicle compartment, a blower 22 for generating air toward the vehicle interior in the blower duct 21, and a blower duct 21. A cooler 23 for evaporating a refrigerant and a heater core 24 that uses engine cooling water as a heat source are provided inside. The blower duct 21 includes a blower unit 40 that houses the blower 22 and a cooling unit 5 that houses the cooler 23.
0, and a heater unit 6 that houses the heater core 24
It is composed of 0 unit cases.

The blower unit 40 is provided with an inside / outside air switching damper 25 for selecting whether to take in the air inside the vehicle or the air outside the vehicle. The blower 22 includes a centrifugal fan 22a and a fan motor 22b that rotationally drives the fan 22a. The blower 22 changes the amount of blown air according to the voltage value applied to the fan motor 22b.

The cooling unit 50 includes a cooler 23 and a pressure reducing device (not shown) by evaporation of refrigerant in the refrigeration cycle.
The air is sent from the blower 22 and cooled by the cooler 23. The heater unit 60 uses the engine cooling water as a heat source to heat the air passing therethrough.
And an air mix damper 26 that controls the temperature of the air by adjusting the mixing ratio of the amount of warm air passing through the heater core 24 and the amount of cool air passing through the bypass 24a of the heater core 24.

At the downstream end of the heater unit 60, there are a plurality of outlets (defroster outlets 2) that are open at various places inside the vehicle compartment.
7, foot outlet 28, face outlets 29a to 29
each outlet duct (defroster duct 27
A, a foot duct 28A, and a face duct 29A) are provided, and the air conditioning air is blown by the MaxCool damper 261 and the mode switching damper 262.
7, 28, 29a, 29b and 29c are selected and supplied to the vehicle interior.

The blower control device 20 controls the blower drive signal to generate a scent in the vehicle compartment.
Drive the blower from. When the air conditioner is operating, it receives a signal from the air conditioner controller 30 to control the blower 22 to an arbitrary air volume. Since a normal vehicle is equipped with a switch that is turned on in conjunction with the opening of the door for lighting the half-door warning lamp, the detection device 3 (detection means) that detects a signal for opening / closing the entrance door uses this switch. To do.

The scent generator 1 has three containers 11A, 11B and 11C respectively containing two kinds of volatile fragrances and deodorants of different kinds, and an occupant selects the kind of fragrance or deodorant. Therefore, the selection switches 14A, 14B, 14C, and the selection switches 14A, 14A,
Electromagnetic valves (supply interrupting means) 12A to 12D for interrupting the supply of the fragrance or deodorant selected by 14B and 14C to the air duct 21. Each container 11A, 11
B and 11C are connected in parallel by an upstream pipe 31 and a downstream pipe 32, and are provided so as to be able to communicate with the inside of the blower duct 21 via the upstream pipe 31 and the downstream pipe 32.

The upstream pipe 31 has an upstream end (first opening) 31a opened downstream (leeward) from the blower 22 and a downstream end branched into three pipes 11A and 11A, respectively.
Branch point 3 that is connected to B and 11C and branches into three
A solenoid valve 12A is provided upstream of 1A. The downstream side pipe 32 has a downstream end (second opening) 32a at the center and face outlets 29a, 29b, 29c on both left and right sides.
To the three-way branching portion 21A in the face duct 29A leading to and opening, and the upstream end side is branched into three and is connected to each of the containers 11A, 11B, and 11C. Solenoid valves 12B, 12C, 1 respectively
2D is provided.

In this example, the upstream pipe 31 and the downstream pipe 32 constitute a fragrance generating air passage. The scent generation control device 13 (control means) receives the signal from the detection device 3 and causes each of the solenoid valves 12A to 12D corresponding to any one of the selection switches 14A, 14B, and 14C that is in the ON state at that time. The valve is energized to open the valve, and a signal for driving the blower is sent to the blower control device 20. After supplying the scent or deodorant for a certain period of time (20 seconds in the present embodiment), if the engine is in the ON state, the solenoid valves 12A to 12D are provided with 1 / f random numbers whose output power spectrum is inversely proportional to the frequency f. The 1 / f fluctuation control described in Japanese Patent Application Laid-Open No. 4-170964, which controls the opening / closing of the solenoid valve, causes intermittent energization at certain intervals.

The solenoid valves 12A to 12D are energized and controlled by the scent generation control device 13 (control means) based on the ON signals of the selection switches 14A, 14B and 14C. For example, when the selection switch 14A is selected and turned on, the electromagnetic valves 12A and 12B are energized through the scent generation control device 13 and the container 11A is communicated with the air duct 21.

Next, the operation of this embodiment will be described with reference to the flow chart of FIG.
It will be explained according to When the passenger opens the door at the time of boarding in step 101, the switch for lighting the half-door warning lamp, which is the detection device 3, is turned on, and the signal is sent to the scent generation control device 13. If the occupant selects the switch in advance, the selected selection switch is in the ON state.

At step 102, the control device 13 receives a door opening signal from the detection device 3, and energizes the solenoid valves 12A to 12D corresponding to any one of the selection switches 14A, 14B and 14C which are in the ON state at that time. Open the valve,
At the same time, a blower drive signal is sent to the blower control device 20.
By the operation of the blower 22, the inside air or the outside air selected by the inside / outside air switching damper 25 is introduced. The air introduced into the blower duct 21 is the selected outlet 27,
28, 29a to 29c blows into the passenger compartment.

Here, for example, when the selection switch 14A is pushed to be in the ON state, the selection switch 14A is
The solenoid valve 12B and the solenoid valve 12A corresponding to the above are energized and opened, and the container 11A is opened by the upstream pipe 31 and the downstream pipe 3
It communicates with the ventilation duct 21 via 2. As a result, the first
The blower 22 drives the opening 31a and the second opening 32a so that a pressure difference caused by the flow of air generated in the blower duct 21 acts, and the fragrance in the container 11A acts on the air flowing in the downstream pipe 32. And the selected outlets 27, 28, 2 supplied together with the blown air into the blower duct 21.
It is supplied to the vehicle compartment from 9a to 29c.

When the engine is turned on within 20 seconds measured in step 103, the fragrance generation control device 13 receives a signal indicating that the engine is on from the ignition key switch 4 in step 104.
Move to. When the engine is not turned on, the scent generation control device 13 does not receive a signal of the engine on state from the ignition key switch 4, and the process proceeds to step 106. When the air conditioner is turned on when the engine is on, the compressor of the refrigeration cycle (not shown) is driven, and the refrigeration cycle (not shown) including the compressor, the condenser, the expansion valve, and the cooler 23 operates. Get started. The air introduced into the blower duct 21 is cooled by heat exchange with evaporation of the refrigerant when passing through the cooler 23, and further when passing through the heater core 24 according to the opening degree of the air mix damper 26, the engine is cooled. It is heated by heat exchange with cooling water. The hot air heated by the heater core 24 is mixed with the cool air that has passed through the bypass 24 a of the heater core 24, and the selected outlets 27, 28, 29.
It is blown into the passenger compartment from a to 29c.

In step 105, the scent generation control device 1
3 is the selection switch 14 which is in the ON state at that time.
The solenoid valve 1 corresponding to any one of A, 14B, and 14C
2A to 12D are intermittently opened and closed by 1 / f fluctuation control,
Control to intermittently supply fragrance or deodorant. After that, steps 104 and 105 are repeated to continue the intermittent supply of the aromatic or deodorant, and when the engine is stopped, the routine proceeds to step 106.

In step 106, the scent generation control device 13 sends a signal to stop the blower to the blower control device 20, simultaneously closes the solenoid valves 12A to 12D, and stops the supply of the fragrance or deodorant. In this system, since the above-described operation is performed, it is possible to prevent waste of the charging capacity of the battery while the engine is stopped. Also, when the door is opened when getting off, the supply of air freshener or deodorant will start again.
After a few seconds, these supplies are stopped, so there is no need to worry about wasting the filling capacity of the battery.

The control flow chart of FIG. 3 is the second embodiment of the present invention.
An example is shown. In step 111, when the passenger opens the door during boarding, the switch for lighting the half-door warning lamp, which is the detection device 3, is turned on, and the signal is sent to the scent generation control device 13. If the occupant selects the switch in advance, the selected selection switch is in the ON state.

In step 112, the scent generation control device 13 receives a door opening signal from the detection device 3 and, regardless of which of the selection switches 14A, 14B and 14C is turned on, the signal from the selection switch is not transmitted. After canceling, the solenoid valves 12A and 12D are energized and opened, and at the same time, a signal for driving the blower is sent to the blower control device 20. In this way, the container 11C becomes the upstream pipe 31 and the downstream pipe 3
The deodorant in the container 11 </ b> C is supplied into the vehicle compartment together with the blown air by communicating with the blower duct 21 via the air blower 2.

When the engine is turned on within 20 seconds measured in step 113, the fragrance generation control device 13 receives the signal indicating that the engine is on from the ignition key switch 4 in step 114 in step 115.
Move to. When the engine is not turned on, the scent generation control device 13 does not receive the signal of the engine on state from the ignition key switch 4, and the process proceeds to step 116.

In step 116, the scent generation control device 13 sends a blower stop signal to the blower control device 20 and at the same time closes the solenoid valves 12A and 12D to stop the supply of the deodorant. In step 115, the solenoid valve 12A
And 12D are closed and the supply of deodorant is suspended.

After the lapse of 2 minutes in step 117, the fragrance generation control device 13 determines the selection switches 14A, 14B, 1 which are in the ON state at that time in step 118.
The solenoid valves 12A to 12D corresponding to any of 4C are intermittently opened / closed by 1 / f fluctuation control, and the aromatics or deodorants are controlled to be intermittently supplied. In step 119,
If the engine is on, step 119 and step 118 are repeated to continue the intermittent supply of the aromatic or deodorant, and when the engine is stopped, the routine proceeds to step 120.

In step 120, the scent generation control device 13 sends a signal to stop the blower to the blower control device 20, simultaneously closes the solenoid valves 12A to 12D, and stops the supply of the fragrance or deodorant. The third embodiment is a vehicle in which the air purifier is combined with the vehicular scent generator of the present invention, and the air purifier operates in conjunction with the engine stop when getting off for the next ride. It is an indoor environment control device. FIG. 4 shows the configuration of the third embodiment.

The air purifier 5 comprises a suction port 33 for sucking air in the passenger compartment, a duct 34 for guiding the sucked air to the air outlet 35, a centrifugal fan 36a and a fan motor 36b for rotationally driving the fan 36a. Blower 36,
An air purifier control device 37 for controlling the blower 36, a filter 3 for purifying the air by the activated carbon stored inside.
8 and a control switch 39 installed in the passenger compartment for the occupant to select the air flow rate. The air purifier control device 37 is connected to the ignition key switch 4 together with the scent generation device control device 13 and the blower control device 20 in order to detect a signal when getting off. Further, each of these control devices 13, 20, and 37 is connected to a battery 41 mounted on the vehicle via a power supply line 42 so that power can be constantly supplied from the battery 41.

Next, the operation of the third embodiment will be described with reference to the flow chart shown in FIG. In step 201, when the passenger opens the door during boarding, the scent generator control device 13
Receives a signal from the detector 3 and determines in step 202 whether the air purifier 5 is operating. If the air purifier 5 is stopped, the process proceeds to step 203. If the air purifier 5 is in operation, it waits for the operation of the air purifier 5 to stop after a predetermined time, which will be described later, and proceeds to step 203. In step 203, as in the first embodiment, the solenoid valve 1 corresponding to any one of the selection switches 14A, 14B and 14C which is in the ON state at that time.
2A to 12D are opened, and the blower 22 is driven at the same time. The scent generator 1 is activated by the operation of the blower 22,
The scent is supplied to the passenger compartment.

When the engine is turned on within 60 seconds measured in step 204, the scent generation control device 13 receives a signal indicating that the engine is on from the ignition key switch 4 in step 205.
Move to. If the engine is not turned on, the scent generator control device 13 does not receive a signal indicating the on state of the engine from the ignition key switch 4, and thus the process proceeds to step 206.

In step 207, the fragrance generation control device 13 causes the selection switch 1 which is in the ON state at that time.
The solenoid valves 12A to 12D corresponding to any of 4A, 14B, and 14C are intermittently opened / closed by 1 / f fluctuation control, and the aromatics or deodorants are controlled to be intermittently supplied.
At this time, if the air conditioner is turned on, the air conditioner operates as described in the first embodiment, and air having a desired temperature is blown into the vehicle compartment through the air outlets 27, 28, 29a to 29c. It Further, when the air purifier 5 is turned on by the control switch 39, the air purifier control device 37 which receives the signal for turning on the air purifier from the control switch 39 sends the blower 36 a signal for driving the blower. After that, steps 207 and 208 are repeated, and the above operation is repeated while the engine is on.

When the engine is stopped, step 208
At scent generation control device 13 and air purifier control device 3
No. 7 does not receive the signal indicating the on state of the engine from the ignition key switch 4, and the process proceeds to step 209.
In step 209, the scent generation control device 13
Sends a signal to stop the blower to the blower controller 20, simultaneously closes the solenoid valves 12A to 12D, and stops the supply of the fragrance or the deodorant. The blower control device 20 is
A signal to stop the blower is received from the scent generation control device 13 and the power supply to the fan motor 22b of the blower 22 is stopped. The air purifier control device 37 rotates the blower 36 at a high speed to operate the air purifier 34 in a strong state.

When 60 seconds are counted in step 210, the air purifier controller 37 stops the blower 36 and the air cleaner 34 in step 211. With the above-described configuration, in the third embodiment, a comfortable scent is supplied to the passenger compartment at the same time as the door is opened at the time of boarding, and when the engine is stopped, the time of getting off the vehicle is detected and the air purifier at the time of getting off Can be used to purify air pollution in the passenger compartment, such as cigarette odor and smoke left by the occupant during riding, and prepare for the next riding.

The present invention is not limited to the examples shown above, but can be carried out in various modes as described below. Instead of detecting the opening of the door, the signal of the door opening command operation may be detected from an electronic door locking system such as an electromagnetic centralized door lock or a wireless door lock.

Downstream end of the downstream pipe 32 (second opening)
Is opened downstream from the heater core 24 in the heater unit 60 and upstream from each blow-out damper 262, and the fragrance or the fragrance is discharged from any of the defroster outlet 27, the foot outlet 28, and the face outlet 29. An odorant may be provided. In addition, the downstream end 32 of the downstream pipe 32
It is also possible to directly open a in the vehicle compartment and supply the fragrance or deodorant directly into the vehicle compartment.

A gas sensor is installed in the air duct of the air conditioner so that the scent generator of the present invention is operated only when the odor is accumulated in the air duct and the door is opened and the door opening command operation is performed. Good. In addition, even if the engine is started by a circuit that sends a signal for starting the engine in response to a signal for unlocking the locked state by the door key, the air conditioner is started in synchronization with the start of the engine, and the fragrance or deodorant is supplied. It is also possible to start the engine and the air conditioner by supplying and receiving signals by radio in addition to the door key to supply the fragrance or deodorant.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is an operation flow chart of the first embodiment of the present invention.

FIG. 3 is an operation flow chart of a second embodiment of the present invention.

FIG. 4 is a diagram schematically showing a configuration of a third exemplary embodiment of the present invention.

FIG. 5 is an operation flowchart of the third embodiment of the present invention.

[Explanation of symbols]

 1 Vehicle Scent Generator 2 Vehicle Air Conditioner 3 Detecting Device (Detecting Unit) 11A to 11C Container 12A to 12D Solenoid Valve (Supply Intermittent Means) 13 Scent Generating Control Device (Control Unit) 14A to 14C Selection Switch 20 Blower Control Device 21 Blower Duct 22 Blower 27 Defroster Blower 28 Foot Blower 29a-29c Face Blower 30 Air Conditioner Controller 31 Upstream Side Pipe (Aroma Generation Air Flow Path) 32 Downstream Side Pipe (Aroma Generation Air Flow Path) 36 Blower 37 Air Purifier Control Device 38 Filter 41 Battery

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Toshihiro Takahara, 1-1, Showa-cho, Kariya city, Aichi Prefecture, Nihon Denso Co., Ltd. (72) Inventor, Yukiya Sasa, 1-1, Showa-cho, Kariya city, Aichi prefecture Within the corporation

Claims (3)

[Claims] 1. A blower duct for introducing blown air to an outlet opening in a vehicle compartment, and a blower duct provided in the blower duct,
A vehicular fragrance generator applied to a vehicular air-conditioning system comprising at least a blower for blowing air, the container containing a volatile fragrance or deodorant therein, and the container is interposed. An air passage for scent generation that guides the air blown from the blower into the vehicle interior through a blower duct of the air conditioner or directly into the vehicle compartment; to the air passage of the fragrance or deodorant in the container Supply and disconnection means for connecting and disconnecting the supply of power, detection means for detecting the opening of the door for getting on and off or a command operation for opening this door, and generating a signal, and driving the blower in response to the signal of this detection means, and for connecting and disconnecting the supply. A scent generation device for a vehicle, comprising: a control unit that sends a control signal to bring the unit into a supply state. 2. The control means, after transmitting the control signal,
The control signal is extinguished when the vehicle engine is stopped after a certain time has elapsed, and the transmission of the control signal is continued for a certain time when the vehicle engine is operating. The vehicle scent generator described. 3. A blower duct for introducing blown air to an outlet opening in the passenger compartment, and a blower duct provided in the blower duct,
A vehicle air conditioner including at least a first blower that blows air, a container that stores a volatile fragrance or a deodorant therein, and a blower from the first blower that interposes the container. The air passage for scent generation that guides the generated air through the air duct of the air conditioner or directly into the vehicle interior, and the supply of the fragrance or deodorant in the container to the air passage is interrupted. Supply connection / disconnection means, detection means for detecting the opening of the entry / exit door or command operation for opening this door, and issuing a signal, and driving the first blower in response to the signal of this detection means First control means for sending a control signal to bring it into a supply state, a second blower driven by being supplied with electric power from a vehicle-mounted power source, an air purifying filter arranged in an air passage of the second blower, and Driven to the second blower A vehicle air purifier having a second control means for transmitting a control signal for controlling the vehicle state, and the first control means stops the vehicle engine after a certain time has elapsed after the control signal was transmitted. The control signal is extinguished when the vehicle engine is operating, and the transmission of the control signal is continued for a certain period of time when the vehicle engine is operating. A vehicle interior air environment conditioner characterized by being configured to send a control signal for driving the second blower for a time period.