Fragrance module for vehicle

Abstract

The present invention relates to a fragrance module for a vehicle provided in a vehicle air conditioner such that a fragrance flows into an interior space when the interior of the vehicle is air-conditioned, and more particularly, to a fragrance module for a vehicle in which the fragrance flows into the interior space when the interior of the vehicle is air-conditioned, the fragrance is sprayed by pushing a plunger of the cartridge, wherein a constant fragrance intensity can be maintained during pushing of the plunger.

Description

Technical Field

[0001] The present invention relates to a fragrance module for a vehicle, which is installed in a vehicle air conditioning system to introduce fragrance material into a vehicle cabin during air conditioning of the vehicle cabin, and more particularly, to a fragrance module for a vehicle, from which fragrance material is dispensed by pushing a cartridge plunger, and when the plunger is pushed, the fragrance module for a vehicle can maintain a constant fragrance dispensing intensity. Background Art

[0002] Generally, a vehicle air conditioning system is configured to cool or heat a vehicle cabin by causing outside air drawn toward the vehicle cabin by a blower unit to selectively pass through an evaporator in which a refrigerant flows or a heater core in which a vehicle engine coolant flows for heat exchange, and then distributing the air in a state of cool air passing through the evaporator or warm air passing through the heater core to various directions distributed in the vehicle cabin through defroster vents, face vents, and floor vents connected to each part of the vehicle cabin.

[0003] Such a vehicle air conditioning system may introduce various harmful substances (such as exhaust gas generated on the road) into the vehicle cabin during operation, and when the operation is terminated in a state where the condensation on the evaporator is not completely dried, bacterial foreign matter (such as mold that inhabits the air conditioning system due to the humid environment) may enter the vehicle cabin to cause an unpleasant odor in the vehicle cabin.

[0004] Aroma dispensers for purifying cabin air by eliminating odors have recently become popular to solve these problems.

[0005] A typical aroma dispenser includes a cartridge storing aroma material and an actuator driven by a power source and a control signal, wherein the actuator rotates an eccentric shaft and applies pressure to a plunger of the cartridge through the eccentric shaft to disperse the aroma.

[0006] In the case of conventional cartridge push-type fragrance dispensers as described above, the inability to precisely control the eccentric shaft and the difficulty in fixing the eccentric shaft in a specific position present challenges in maintaining a constant fragrance distribution intensity. In particular, when two or more cartridges are controlled with a single eccentric shaft, maintaining a constant fragrance distribution intensity for each cartridge is even more challenging. Summary of the invention

[0007] Technical issues

[0008] The present invention is designed to solve the above problems, and an object of the present invention is to provide a fragrance module for a vehicle that allows precise control of fragrance dispensing intensity by arranging a rotation axis of an actuator and a pressing direction of a cartridge plunger in parallel and applying a plate-like pressing member between the actuator and the cartridge.

[0009] Another object of the present invention is to provide a fragrance module for a vehicle, which controls a pushing distance by providing a plate-shaped pressing member with an inclined portion and provides at least one horizontal section on the inclined portion, thereby allowing a desired fragrance distribution intensity to be kept constant even without precise control of an actuator.

[0010] The present invention also aims to provide a fragrance module for a vehicle. When a plurality of cartridges are provided, by radially arranging the plurality of cartridges around the rotation axis of an actuator and arranging the inclined portions of a plate-like pressing member at the same distance from the rotation axis of the actuator, respectively, the fragrance module for a vehicle applies the same pushing pressure to each cartridge when the pressing member is driven.

[0011] Technical Solution

[0012] The fragrance module for a vehicle of the present invention includes: an actuator that rotates a drive shaft; a drive wheel that is connected to the drive shaft to convert the rotational force of the drive shaft into a linear pressing motion; a push rod that transmits the linear pressing motion of the drive wheel to a plunger of a cartridge to dispense a fragrance material; and a cartridge that stores the fragrance material inside and dispenses the internal fragrance material to the outside when pressure is applied to the plunger, wherein a first axial direction of the drive shaft and a second axial direction that is a pressing direction of the push rod are parallel to each other.

[0013] At this time, the driving wheel includes: a plate-shaped wheel body; a wheel axle, which extends outward from one surface of the wheel body and is connected to the driving shaft of the actuator; and a protruding inclined portion, which protrudes outward from the other surface of the wheel body and converts the rotational motion of the wheel body into linear motion through a push rod, wherein the protruding length of the protruding inclined portion gradually increases from one side to the other side of the wheel body in the circumferential direction.

[0014] Furthermore, the protruding inclined portion includes an inclined surface whose protruding length gradually increases from one side to the other side of the wheel body in the circumferential direction, and a pressing displacement of the push rod in contact with the inclined surface varies according to a rotational displacement of the wheel body.

[0015] In addition, the protruding inclined portion also includes a flat section that extends from the end of the inclined surface on the other side to the other side in the circumferential direction but extends to a predetermined protruding length, and when the push rod is positioned on the flat section, the push rod maintains a fixed pressing displacement even when the wheel body rotates.

[0016] In addition, the protruding inclined portion also includes a plurality of flat sections formed on the inclined surface but extending to a predetermined protruding length in the circumferential direction, the plurality of flat sections are arranged at intervals in the circumferential direction on the inclined surface, and when the push rod is positioned on a flat section among the plurality of flat sections, the push rod maintains a fixed pressing displacement even when the wheel body rotates.

[0017] In addition, the fragrance module for a vehicle includes a plurality of push rods and a plurality of cartridges, wherein a plurality of protruding inclined portions are arranged on a wheel body at intervals in a circumferential direction to control dispensing of fragrance materials from the plurality of cartridges.

[0018] Furthermore, the radial distance from the drive shaft to each of the plurality of protruding inclined portions is the same.

[0019] Furthermore, the angle formed by the flat section in the circumferential direction with respect to the center of the wheel axle is equal to or greater than the rotational tolerance angle of the actuator.

[0020] Furthermore, an angle formed by the flat section in the circumferential direction with respect to the center of the axle is equal to or greater than ±2 degrees.

[0021] Beneficial Effects

[0022] The fragrance module for a vehicle of the present invention having the above configuration is configured so that the rotation axis of the actuator and the pushing direction of the cartridge plunger are parallel to each other, thereby having an effect that the pushing displacement of the plunger can be accurately controlled by the rotation of the actuator.

[0023] In addition, the pushing displacement of the plunger is controlled by the inclined portion of the plate-like pressing member, but at least one horizontal section is provided on the inclined portion to keep the pushing displacement of the plunger constant over the entire horizontal section, thereby having the effect of keeping the aroma distribution intensity of the cartridge constant even without precise control of the actuator.

[0024] Furthermore, when a plurality of cartridges are provided, a plurality of inclined portions provided in the plate-like pressing member may be respectively arranged at the same distance from the rotation axis of the actuator, thereby having an effect that the plurality of cartridges may be controlled with the same fragrance distribution intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a front view of a fragrance module for a vehicle according to a first embodiment of the present invention.

[0026] Figure 2 is a perspective view of a fragrance module for a vehicle according to a first embodiment of the present invention.

[0027] Figure 3 is a front view of a driving wheel according to a first embodiment of the present invention.

[0028] Figure 4 1 is a front schematic diagram of a driving wheel according to embodiment 1-1 of the present invention.

[0029] Figure 5 4 is a front schematic diagram of a front wheel according to Embodiment 1-2 of the present invention.

[0030] Figure 6 4 is a front schematic diagram of a driving wheel according to embodiments 1 to 3 of the present invention.

[0031] Figure 7 is a perspective view of a fragrance module for a vehicle according to a second embodiment of the present invention.

[0032] Figure 8 is a plan view of a drive wheel according to a second embodiment of the present invention.

[0033] <Description of Reference Signs>

[0034] 1000, 2000: Fragrance modules for vehicles

[0035] 100: Actuator

[0036] 200, 500: driving wheel

[0037] 210, 510: Wheel body

[0038] 220, 520: Axle

[0039] 250: Putter

[0040] 260: First putt

[0041] 270: Second putt

[0042] 300, 310, 320, 330: Protruding inclined part

[0043] 310, 311, 321, 331: Inclined surfaces

[0044] 325, 335: Flat section

[0045] 400: Barrel

[0046] 410: First barrel

[0047] 420: Second barrel

[0048] 610: First protruding inclined portion

[0049] 620: Second protruding inclined portion

[0050] 615, 625: Flat section DETAILED DESCRIPTION

[0051] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] Figure 1 1 shows a front view of a fragrance module 1000 for a vehicle according to a first embodiment of the present invention, and Figure 2 A perspective view showing a fragrance module 1000 for a vehicle according to a first embodiment of the present invention is shown.

[0053] As shown in the figure, the fragrance module 1000 for a vehicle according to an embodiment of the present invention includes: an actuator 100, which rotates a driving shaft through power and a control signal; a driving wheel 200, which is connected to the driving shaft of the actuator 100 to convert the rotational force of the driving shaft into a linear pressing motion; a push rod 250, which transmits the linear pressing motion of the driving wheel 200 to the plunger of the cartridge 400 to dispense the fragrance material; and a push-type cartridge 400, which stores the fragrance material inside and dispenses the internal fragrance material to the outside when pressure is applied to the plunger.

[0054] At this time, the fragrance module 1000 for a vehicle according to the first embodiment of the present invention is configured so that the first axial direction A1 of the driving shaft of the actuator 100 and the second axial direction A2 which is the pressing direction of the push rod 250 are parallel to each other. Arranging the first axial direction A1 and the second axial direction A2 in parallel provides an advantage that the fragrance distribution intensity can be accurately controlled.

[0055] A specific embodiment of the fragrance module 1000 for a vehicle having the above-mentioned features will be described in detail with reference to the accompanying drawings.

[0056] Figure 3 A front view of a driving wheel 200 according to a first embodiment of the present invention is shown. As shown in the figure, the driving wheel 200 includes a disc-shaped wheel body 210 having a predetermined thickness, a wheel shaft 220 extending from one side of the wheel body 210 in a one-side direction and connected to a driving shaft of the actuator 100, and a protruding inclined portion 300 extending from the other side of the wheel body 210 in the other side direction and converting the rotational motion of the wheel body 210 into a linear motion through the push rod 250. The protruding inclined portion 300 may have a protruding length that gradually increases from one side to the other side of the wheel body 210 in the circumferential direction, and contacts with the end of the push rod 250 on one side, so that when the wheel body 210 rotates, pressure is axially applied to the push rod 250 to make the push rod 250 perform linear motion in the other side direction. At this time, through various embodiments, the protruding inclined portion 300 of the present invention can more accurately control the linear motion of the push rod 250.

[0057] Figures 4 to 6A schematic front view of a protruding inclined portion 300 according to various embodiments of the present invention is shown.

[0058] Figure 4 It is shown that the protruding inclined portion 310 according to the 1-1 embodiment of the present invention may include an inclined surface 311 having a protruding length gradually increasing from one side to the other side of the wheel body 210 in the circumferential direction. Therefore, the pressure application displacement of the push rod 250 contacting the inclined surface 311 varies according to the rotational displacement of the wheel body 210 to vary the plunger pressing displacement of the cartridge 400, so that the dispensing intensity of the aroma material can be controlled.

[0059] also, Figure 5 It is shown that the protruding inclined portion 320 according to the 1-2 embodiment of the present invention includes an inclined surface 321 having a protruding length gradually increasing from one side of the wheel body 210 to the other side in the circumferential direction. At this time, the protruding inclined portion 320 may also include a flat section 325, which extends from the end of the inclined surface 321 on the other side to the other side in the circumferential direction, but extends to a predetermined protruding length. Therefore, the pressing displacement of the plunger varies according to the rotational displacement of the wheel body 210, but when the push rod 250 is positioned on the flat section 325 of the protruding inclined portion 320, the push rod 250 can remain fixed even if the wheel body 210 rotates slightly or the vibration of the vehicle is transmitted. This provides the following advantages: even without precise control of the actuator, the fragrance distribution intensity of the cartridge can be maintained at a specific intensity.

[0060] also, Figure 6 It is shown that the protruding inclined portion 330 according to the 1-3 embodiments of the present disclosure includes an inclined surface 331 having a protruding length gradually increasing from one side to the other side of the wheel body 210 in the circumferential direction. At this time, the protruding inclined portion 330 may also include a plurality of flat sections 335 extending from the end of the inclined surface 331 on the other side to the other side in the circumferential direction to a predetermined protruding length. A plurality of flat sections 335 may be arranged on the inclined surface 331 at intervals in the circumferential direction of the wheel body 210. Therefore, when the pressing displacement of the plunger changes according to the rotational displacement of the wheel body 210 but the push rod 250 is positioned on the flat section 335 of the protruding inclined portion 330, the push rod 250 may remain fixed even if the wheel body 210 rotates slightly. This provides the advantage that the fragrance distribution intensity of the cartridge may be kept constant even without precise actuator control. In particular, in embodiments 1-3, arranging a plurality of flat sections 335 at intervals on the inclined surface 331 provides the following advantages: various levels of fragrance distribution intensity as well as a specific fragrance distribution intensity can be kept constant.

[0061] Figure 7 shows a perspective view of a fragrance module 2000 for a vehicle according to a second embodiment of the present invention, and Figure 8 A plan view of a drive wheel 500 according to a second embodiment of the present invention is shown.

[0062] As shown in the figure, the fragrance module 2000 for vehicles according to the embodiment of the present invention includes: an actuator 100, which rotates a driving shaft by power and a control signal; a driving wheel 500, which is connected to the driving shaft of the actuator 100 to convert the rotational force of the driving shaft into a linear pressing motion; a first push rod 260 and a second push rod 270, which transmit the linear pressing motion of the driving wheel 500 to the plungers of the cartridges 410, 420 to dispense the fragrance material; and a push-type first cartridge 410 and a second cartridge 420, which store the fragrance material and dispense the internal fragrance material to the outside when pressure is applied to the plunger. The fragrance module 2000 for vehicles according to this embodiment drives two first push rods 260 and a second push rod 270 by a single driving wheel 500 to dispense the fragrance material from the two first cartridges 410 and the second cartridge 420.

[0063] At this time, a pair of first protruding inclined portions 610 and second protruding inclined portions 620 provided in the driving wheel 500 may be arranged at intervals in the circumferential direction of the driving wheel 500. More specifically, a first distance from the driving shaft of the actuator 100 to the first protruding inclined portion 610 and a second distance from the driving shaft to the second protruding inclined portion 620 may be equal. Therefore, a force applied from the driving wheel 500 to the first push rod 260 through the first protruding inclined portion 610 and a force applied from the second protruding inclined portion 620 to the second push rod 270 may be equal. Thus, an effect is produced that a plurality of first cartridges 410 and second cartridges 420 may be controlled with the same fragrance distribution strength.

[0064] Figure 8 It is shown that the driving wheel 500 includes a wheel body 510 having a predetermined thickness, a wheel shaft 520 extending from one side of the wheel body 510 in one side direction and connected to the driving shaft of the actuator 100, and a first protruding inclined portion 610 and a second protruding inclined portion 620 protruding from the other side of the wheel body 510 in the other side direction and converting the rotational motion of the wheel body 510 into a linear motion through the first push rod 260 and the second push rod 270. At this time, the first protruding inclined portion 610 and the second protruding inclined portion 620 may be arranged at intervals in the circumferential direction of the wheel body 510. In addition, the protruding lengths of the protruding inclined portions 610, 620 gradually increase from one side to the other side of the wheel body 510 in the circumferential direction.

[0065] On the other hand, flat sections 615, 625 may be formed at the ends of the protruding inclined portions 610, 620 on the other side in the circumferential direction, and may have a circumferential length corresponding to ±2 degrees or more in the circumferential direction relative to the center of the axle 520.

[0066] This is because the minimum control tolerance of the actuator 100 is about ±2 degrees, so the circumferential length of the flat section must correspond to ±2 degrees or more to have the intended effect of the flat section.

[0067] The technical idea should not be interpreted as being limited to the above-mentioned embodiments of the present invention. The scope of the present application is different, and various modified embodiments can be made by those skilled in the art without departing from the essence of the present invention claimed in the claims. Therefore, such improvements and changes fall within the scope of protection of the present invention as long as they are obvious to those skilled in the art.

Claims

1. A fragrance module for a vehicle, the fragrance module for a vehicle comprising: an actuator that rotates the drive shaft; a driving wheel connected to the driving shaft to convert a rotational force of the driving shaft into a linear pressing motion; a push rod that transmits the linear pressing motion of the drive wheel to a plunger of a cartridge to dispense a fragrance material; as well as a cartridge that stores the aroma material inside and dispenses the aroma material inside to the outside when pressure is applied to the plunger, wherein The first axial direction of the drive shaft and the second axial direction which is a pressing direction of the push rod are parallel to each other.

2. The fragrance module for a vehicle according to claim 1, wherein: The driving wheel comprises: A wheel body in the form of a plate; a wheel axle extending outwardly from one surface of the wheel body and connected to the drive shaft of the actuator; and a protruding inclined portion which protrudes outward from the other surface of the wheel body and converts the rotational motion of the wheel body into a linear motion through the push rod, and A protruding length of the protruding inclined portion gradually increases from one side to the other side of the wheel body in a circumferential direction.

3. The fragrance module for a vehicle according to claim 2, wherein: The protruding inclined portion includes an inclined surface whose protruding length gradually increases from one side to the other side of the wheel body in the circumferential direction, and A pressing displacement of the push rod in contact with the inclined surface varies according to a rotational displacement of the wheel body.

4. The fragrance module for a vehicle according to claim 3, wherein: The protruding inclined portion further includes a flat section extending from an end of the inclined surface on the other side toward the other side in the circumferential direction but extending to a predetermined protruding length, wherein When the push rod is positioned on the flat section, the push rod maintains a fixed pressing displacement even when the wheel body rotates.

5. The fragrance module for a vehicle according to claim 3, wherein: The protruding inclined portion further includes a plurality of flat sections which are formed on the inclined surface but extend to a predetermined protruding length in the circumferential direction, and The plurality of flat sections are arranged on the inclined surface at intervals in the circumferential direction, and when the push rod is positioned on a flat section among the plurality of flat sections, the push rod maintains a fixed pressing displacement even when the wheel body rotates.

6. The fragrance module for a vehicle according to claim 2, comprising a plurality of push rods and a plurality of cartridges, wherein: A plurality of protruding inclined portions are arranged at intervals along the circumferential direction on the wheel body to control the dispensing of the fragrance material from the plurality of cartridges.

7. The fragrance module for a vehicle according to claim 6, wherein: A radial distance from the drive shaft to each of the plurality of protruding inclined portions is the same.

8. The fragrance module for a vehicle according to claim 4 or 5, wherein: An angle formed by the flat section in the circumferential direction relative to the center of the wheel axle is equal to or greater than a rotation tolerance angle of the actuator.

9. The fragrance module for a vehicle according to claim 8, wherein: An angle formed by the flat section with respect to the center of the wheel axle in the circumferential direction is equal to or greater than ±2 degrees.

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