CN113276637A

CN113276637A - Purifying device for vehicle

Info

Publication number: CN113276637A
Application number: CN202010102124.6A
Authority: CN
Inventors: 松元昂
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2021-08-20

Abstract

Provided is a small-sized vehicle purification device which suppresses the inflow of regeneration air on the regeneration side into adsorption air on the adsorption side. The disclosed device is provided with: a dehumidifier having a first adsorbent and a second adsorbent that adsorb moisture in the air flowing into the first internal flow path and the second internal flow path, respectively; a duct having an interior duct for guiding the purified air discharged from one of the first interior flow path and the second interior flow path into the vehicle interior, and an exterior duct for guiding the regenerated air discharged from the other of the first interior flow path and the second interior flow path out of the vehicle interior; a flow dividing device provided between the dehumidifier and the duct, the flow dividing device including: a rotating body that rotates around an axis and switches between a first state in which the first internal flow path communicates with the vehicle interior duct and a second state in which the second internal flow path communicates with the vehicle interior duct in response to the rotation; and a connecting body for connecting the rotating body and the dehumidifying device.

Description

Purifying device for vehicle

Technical Field

The present invention relates to a vehicle purification device.

Background

Conventionally, there is known a configuration of a vehicle purification device that adjusts the humidity or the like in a room by adsorbing and generating (regenerating) moisture in the air. In the above-described vehicle purification apparatus, various techniques have been proposed in which the adsorption and regeneration are alternately repeated by the adsorbent to maintain a comfortable humidity in the room.

For example, patent document 1 (japanese patent application laid-open No. 5-111612) discloses a configuration of an adsorption separation apparatus including: an adsorption part filled with an adsorbent; an inlet side flow path connected to an inlet of the adsorption part, into which the process gas and the heating gas flow; an outlet-side flow path connected to an outlet of the adsorption unit and configured to discharge the treated gas and the heated gas; and a rotary switching valve interposed between the inlet-side flow path and the outlet-side flow path and the adsorption portion. According to the technique described in patent document 1, the switching valve is rotated to switch the gas entering each adsorbent, so that the adsorption and regeneration of the gas component can be continuously performed. In addition, since switching is performed by 2 switching valves, the structure is extremely simple, and space, weight, and cost can be reduced.

Disclosure of Invention

However, in the technique described in patent document 1, when passing through each switching valve, there is a possibility that regeneration air on the regeneration side flows into adsorption air on the adsorption side. Further, if a mechanism for suppressing the mixing of the regeneration air and the adsorption air is separately provided, the entire apparatus may be enlarged.

Accordingly, an object of the present invention is to provide a vehicle purification device that is small in size and suppresses the inflow of regeneration air on the regeneration side into adsorption air on the adsorption side.

Means for solving the problems

In order to solve the above problem, a vehicle purification device (for example, a purification device 1 in an embodiment) according to the invention described in the first aspect includes: a dehumidifying device (for example, a dehumidifying device 2 according to an embodiment) which distributes air flowing in to a first internal flow path (for example, a first internal flow path 16 according to an embodiment) and a second internal flow path (for example, a second internal flow path 17 according to an embodiment) and has a first adsorbent (for example, a first adsorbent 12 according to an embodiment) which adsorbs moisture in the air flowing into the first internal flow path and a second adsorbent (for example, a second adsorbent 13 according to an embodiment) which adsorbs moisture in the air flowing into the second internal flow path; a duct (for example, a duct 3 in the embodiment) having an interior duct (for example, an interior duct 31 in the embodiment) for guiding the purified air discharged from one of the first interior flow path and the second interior flow path into the vehicle interior, and an exterior duct (for example, an exterior duct 32 in the embodiment) for guiding the regenerated air discharged from the other of the first interior flow path and the second interior flow path out of the vehicle interior; and a flow dividing device (for example, a flow dividing device 4 in the embodiment) provided between the dehumidifying device and the passage, the first adsorbent and the second adsorbent being capable of being alternately adsorbed and regenerated, the flow dividing device including: a rotating body (for example, a rotating body 40 in the embodiment) that rotates about an axis (for example, an axis C in the embodiment) along a flow direction of the air flowing from the dehumidifying device into the duct, and that switches between a first state in which the first internal flow path communicates with the vehicle interior duct and the second internal flow path communicates with the vehicle exterior duct, and a second state in which the first internal flow path communicates with the vehicle exterior duct and the second internal flow path communicates with the vehicle interior duct, in accordance with the rotation; and a coupling body (for example, a coupling body 41 in the embodiment) that couples the rotating body and the dehumidifying apparatus.

In the vehicle purifying device according to the second aspect of the invention, the passage has a first protrusion (for example, a first protrusion 34 in the embodiment) protruding from an outer peripheral portion of the rotating body toward the axis, the coupling body has a second protrusion (for example, a second protrusion 48 in the embodiment) protruding from the outer peripheral portion of the rotating body toward the axis, and the rotating body is disposed between the first protrusion and the second protrusion.

In the vehicle purifying device according to the third aspect of the invention, the rotating body has an extended portion (for example, an extended portion 44 in the embodiment) that extends in the axial direction of the axis line toward at least one of the passage side and the coupling body side, and the extended portion extends along a distal end portion (for example,

distal end portions

34a and 48a in the embodiment) of at least one of the first protruding portion and the second protruding portion.

In the vehicle purification device according to the fourth aspect of the invention, the connecting body includes a partition (for example, a partition 47 in the embodiment) disposed between the first internal flow passage and the second internal flow passage when viewed in the axial direction of the axis.

In the vehicle purifying device according to the fifth aspect of the invention, the duct includes a drive motor (for example, a drive motor 39 in the embodiment) that drives the rotating body, and the drive motor is disposed between the vehicle interior duct and the vehicle exterior duct and outside the duct.

In the vehicle purifying device according to the sixth aspect of the invention, the rotating body is formed of one plate member having one of a ring shape and a fan shape, and is formed to be rotatable in the circumferential direction of the rotating body.

Effects of the invention

According to the vehicle purification device of the first aspect of the present invention, the rotating body can be switched between the first state in which moisture in the air is adsorbed by the first adsorbent and the second state in which moisture in the air is adsorbed by the second adsorbent. While the first adsorbent is adsorbing in the first state, the second adsorbent is regenerated. While the second adsorbent is adsorbing in the second state, the first adsorbent is regenerated. Since the first adsorbent and the second adsorbent can be alternately adsorbed and regenerated in this way, the rotation of the rotating body is switched to continuously purify (dehumidify) the air. Further, since the rotating body is connected to the dehumidifying apparatus via the connecting body, the provision of the connecting body can suppress the mixture of the adsorption air (purified air) on the adsorption side and the regeneration air on the regeneration side during the rotation of the rotating body. This can suppress the reduction in passenger comfort and the generation of window fogging due to the inflow of the regeneration air into the clean air and the discharge of the regeneration air into the vehicle interior.

Since the flow diversion device has the coupling body, the rotating body and the dehumidifying device can be reliably coupled via the coupling body regardless of the shape of the dehumidifying device and the layout of the adsorbing material. This makes it possible to reliably guide the air flowing from the dehumidifier into the coupling body to the rotating body. Further, since the connecting body can be configured to be simple, the air can be guided to the rotating body through the connecting body without increasing the size of the entire vehicle purification apparatus.

Therefore, it is possible to provide a small-sized vehicle purification device in which the inflow of regeneration air on the regeneration side into adsorption air (purified air) on the adsorption side is suppressed.

According to the vehicle purification device of the second aspect of the present invention, the rotating body is disposed between the first protrusion and the second protrusion, and the first protrusion and the second protrusion protrude to the inside in the radial direction from the outer peripheral portion of the rotating body. Thereby, the gap formed between the outer peripheral portion of the rotating body and the first and second protruding portions is bent a plurality of times. Thus, air leakage from the gap between the outer peripheral portion of the rotating body and the first and second protruding portions can be suppressed as compared with the case where the gap is formed in the axial direction. Therefore, the inflow of the regeneration air from the gap between the outer peripheral portion of the rotating body and the first and second protruding portions to the clean air side can be suppressed.

According to the vehicle purification apparatus of the third aspect of the present invention, since the rotating body has the extended portion, the gap in the outer peripheral portion of the rotating body can be made into a labyrinth shape by the extended portion, the first protruding portion, and the second protruding portion. This can further suppress the inflow of air from the gap in the outer periphery of the rotating body. This makes it possible to provide a high-performance vehicle purification device in which the inflow of regeneration air from the gap in the outer periphery of the rotating body to the purified air side is further suppressed.

According to the vehicle purification device of the fourth aspect of the present invention, the connecting body has the partition wall disposed between the first internal flow passage and the second internal flow passage. Thus, the partition wall can guide the air flowing into the coupling body from the first internal flow passage and the second internal flow passage of the dehumidifying apparatus to the rotating body in a separated state. This can suppress mixing of the adsorption air on the adsorption side and the regeneration air on the regeneration side in the coupling body.

According to the vehicle purification device of the fifth aspect of the present invention, the drive motor is provided between the vehicle interior tunnel and the vehicle exterior tunnel. Thus, the dead space between the vehicle interior tunnel and the vehicle exterior tunnel can be effectively utilized. This makes it possible to reduce the size of the vehicle purification device.

According to the vehicle purification apparatus of the sixth aspect of the present invention, the rotating body is formed of one plate member and is formed to be rotatable in the circumferential direction. This enables the rotating body to have a simple structure. This makes it possible to reduce the size of the flow dividing device and reduce the cost required for manufacturing the vehicle purification device.

Drawings

Fig. 1 is an external perspective view of a vehicle purification apparatus according to an embodiment.

Fig. 2 is an exploded perspective view of the vehicle purification device according to the embodiment.

Fig. 3 is a sectional view of the vehicle purification apparatus of the embodiment.

Fig. 4 is a sectional view taken along line IV-IV of fig. 3.

Fig. 5 is an exploded perspective view of the duct and the flow dividing device of the embodiment as viewed from the dehumidifying device side.

Fig. 6 is an enlarged view of a VI portion of fig. 3.

Fig. 7 is a front view of the vehicle purification apparatus showing the state of the rotating body in the first state.

Fig. 8 is a front view of the vehicle purification apparatus showing the state of the rotating body in the second state.

Description of the symbols

1 purifying device (purifying device for vehicle)

2 dehumidifying device

3 channel

4 shunting device

12 first adsorbent material

13 second adsorbent

16 first internal flow path

17 second internal flow path

31 vehicle inside channel

32 vehicle outboard channel

34 first projection

34a front end portion

39 drive motor

40 rotating body

41 connected body

44 extending part

47 bulkhead

48 second projection

48a front end portion

C axis

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings.

(embodiment mode)

(purifying apparatus for vehicle)

Fig. 1 is an external perspective view of a vehicle purification apparatus 1 (hereinafter, simply referred to as purification apparatus 1) according to an embodiment. Fig. 2 is an exploded perspective view of the purification apparatus 1 of the embodiment. Fig. 3 is a cross-sectional view of the purification apparatus 1 of the embodiment as viewed from the side. Fig. 4 is a sectional view taken along line IV-IV of fig. 3.

The purification apparatus 1 is mounted on a vehicle not shown. The purifying device 1 is an air purifying device that purifies air in a vehicle interior of a vehicle, and can remove a purification target substance in the air in the vehicle interior. The substance to be purified includes at least carbon dioxide and water vapor (moisture in the present embodiment).

The purification apparatus 1 includes a dehumidifying apparatus 2, a duct 3, and a flow dividing apparatus 4.

(dehumidification apparatus)

The dehumidifying apparatus 2 has an adsorption part 5 and a suction part 6.

The adsorption section 5 includes a casing 11, a first adsorbent 12, a second adsorbent 13, and

heating devices

14a and 14b (see fig. 4).

The housing 11 is formed in a rectangular cylindrical shape. As shown in fig. 4, a partition wall 15 is formed inside the housing 11 along the air flow direction. The partition wall 15 divides the interior of the housing 11 into 2 spaces. One of the divided 2 spaces serves as a first internal flow path 16. The other of the divided 2 spaces serves as a second internal flow path 17.

The first adsorbent 12 is disposed in the first internal flow path 16. The first adsorbent 12 adsorbs the substance to be purified in the air flowing into the first internal flow path 16. Specifically, the first adsorbent 12 has a structure in which an adsorbent such as synthetic zeolite capable of adsorbing at least carbon dioxide and water is supported on or impregnated in a base material, for example. As the adsorbent adsorbing carbon dioxide, for example, activated carbon, zeolite, silica (silicon), barium orthotitanate, porous cerium oxide, polyamine, potassium carbonate, amine solution, amide imide solution, alcohol solution, ether solution, ketone solution, carbonate solution, lactone solution, hydrocarbon solution, or the like can be used. Thereby, the first adsorbent can remove odor in the air in the vehicle interior. As the adsorbent capable of adsorbing water vapor, for example, activated carbon zeolite, silica gel, or the like can be used. This enables the first adsorbent 12 to remove the vehicle interior.

The second adsorbent 13 is disposed in the second internal flow passage 17. The second adsorbent 13 adsorbs the substance to be purified in the air flowing into the second internal flow passage 17. The second adsorbent 13 is formed of the same material as the first adsorbent 12. The first adsorbent 12 and the second adsorbent 13 can repeatedly exhibit an adsorption action of adsorbing the purification target substance in the air and a regeneration action of desorbing the purification target substance by heating and allowing re-adsorption. The first adsorbent 12 and the second adsorbent 13 alternately adsorb and regenerate.

The first adsorbent 12 and the second adsorbent 13 are not limited to synthetic zeolite. The adsorbent may be composed of 2 kinds of components, that is, a component capable of adsorbing carbon dioxide and a component capable of adsorbing water vapor (moisture). The first adsorbent 12 and the second adsorbent 13 may be liquid or solid.

The

heating devices

14a and 14b are disposed inside the casing 11. The

heating devices

14a and 14b are provided in the first internal flow passage 16 and the second internal flow passage 17, respectively. The

respective heating devices

14a and 14b are provided upstream of the first adsorbent 12 and the second adsorbent 13 in the air flow direction. Either one of the

heating devices

14a, 14b is selectively heated. The

heating devices

14a and 14b heat the air before the air is introduced into the first adsorbent 12 and the second adsorbent 13 during the regeneration of the first adsorbent 12 and the second adsorbent 13. That is, during regeneration of the

adsorbents

12 and 13, the air heated by the

corresponding heating devices

14a and 14b is introduced into the

adsorbents

12 and 13, respectively.

The suction unit 6 is connected to the end of the suction unit 5 on the

heating device

14a or 14b side. The suction unit 6 sucks air in the vehicle interior and guides the air to the adsorption unit 5. As shown in fig. 3, suction unit 6 includes an inlet duct 21, an air inlet fan 22, and an inlet port 23.

The introduction pipe 21 is connected to the adsorption part 5. An air intake fan 22 is attached to an upstream end of the intake duct 21. Air introducing fan 22 introduces air in the vehicle interior into introducing duct 21. An air inlet 23 through which air is sucked is attached to the air introducing fan 22. As shown in fig. 4, the introduction pipe 21 includes a branch wall 24 and a switching valve 25, and the branch wall 24 branches air introduced from the air introduction fan 22 through the suction port 23.

The branch wall 24 is formed continuously with the partition wall 15 of the adsorption part 5. One of the spaces partitioned by the branch wall 24 communicates with the first internal flow passage 16. The other space partitioned by the branch wall 24 communicates with the second internal flow passage 17. Therefore, the air in the vehicle interior distributed by the branch wall 24 flows into the first internal flow passage 16 and the second internal flow passage 17.

The switching valve 25 is disposed upstream of the branch wall 24 in the air flow direction. The switching valve 25 switches the introduction of the air flowing into the inlet pipe 21. The switching valve 25 is operated to an arbitrary rotational position by an actuator (neither shown) controlled by the control device. Thereby, the switching valve 25 adjusts the ratio of the amount of air distributed from the introduction pipe 21 to the

internal flow passages

16 and 17.

The introduction pipe 21 may include a cold temperature supply device (not shown) having, for example, a peltier element in which one of the front and the back is heated by energization and the other of the front and the back is cooled, a heat sink (heat sink) attached to the front and the back of the peltier element, and the like. In this case, the cold-temperature supply device is disposed upstream of the

heating devices

14a and 14b in 2 spaces partitioned by the branch walls 24.

(channel duct)

As shown in fig. 1 and 3, the duct 3 is provided on the downstream side of the dehumidifier 2 in the air flow direction. The air discharged from the first adsorbent 12 and the second adsorbent 13 flows into the channel 3. The duct 3 is an exhaust pipe for exhausting the air exhausted from the first adsorbent 12 and the second adsorbent 13 into the vehicle interior or the vehicle exterior. The duct 3 is connected to the dehumidifier 2 via a flow divider 4 described in detail below. The tunnel 3 has a tunnel body 30, an inboard tunnel 31, and an outboard tunnel 32.

Fig. 5 is an exploded perspective view of the duct 3 and the flow dividing device 4 of the embodiment as viewed from the dehumidifying device 2 side. Fig. 6 is an enlarged view of the portion IV of fig. 3.

As shown in fig. 1 and 5, the duct body 30 is connected to the dehumidifying apparatus 2 via the flow dividing device 4. The duct body 30 is formed in a bottomed cylindrical shape that opens to the dehumidifier 2 side. The channel body 30 has a central wall 33, a first projection 34, and a coupling portion 35.

The central wall 33 is formed integrally with the channel body 30. The central wall 33 is disposed inside the channel body 30. The central wall 33 protrudes from the bottom 36 of the passage body 30 toward the dehumidifying apparatus 2 side. The central wall 33 extends in the direction in which the first internal flow passage 16 and the second internal flow passage 17 of the adsorption unit 5 are arranged. In other words, the center wall 33 is formed substantially orthogonal to the partition wall 15 provided in the casing 11 of the dehumidifier 2. The central wall 33 divides the space inside the duct body 30 into two portions in a direction intersecting the arrangement direction of the first and second

internal flow paths

16 and 17 when viewed from the direction of the adsorption section 5 along the air flow direction.

As shown in fig. 6, the first protrusion 34 is provided at the end of the passage main body 30 on the dehumidifying apparatus 2 side. The first projection 34 is integrally formed with the channel body 30. The first projecting portion 34 projects from the inner peripheral portion of the passage main body 30 toward the inside in the radial direction of the passage main body 30. The first protruding portion 34 is formed over the entire circumference in the circumferential direction.

As shown in fig. 5, the coupling portions 35 radially extend from the center of the longitudinal direction of the central wall 33 (the center portion in the radial direction of the channel body 30). The end of the coupling portion 35 on the outer diameter side is coupled to the first protrusion 34. A plurality of the coupling portions 35 (6 in the present embodiment) are provided in the circumferential direction.

As shown in fig. 1, the vehicle interior side tunnel 31 is formed integrally with the tunnel main body 30. The vehicle interior passage 31 returns air (purified air in the present embodiment) purified by the first adsorbent 12 or the second adsorbent 13 to the vehicle interior. The vehicle-interior passage 31 protrudes from the bottom 36 of the passage body 30 toward the opposite side of the dehumidifying apparatus 2. The vehicle-interior passage 31 is formed in a cylindrical shape. The vehicle interior duct 31 communicates with one of the internal spaces of the duct body 30 divided by the center wall 33.

The outboard channel 32 is formed integrally with the channel body 30. The vehicle outside duct 32 discharges air (regeneration air in the present embodiment) containing the purification target substance discharged from the first adsorbent 12 or the second adsorbent 13 to the outside of the vehicle. The vehicle-outside passage 32 protrudes from the bottom 36 of the passage body 30 toward the opposite side of the dehumidifying apparatus 2. The vehicle outer passage 32 is formed in a cylindrical shape. The vehicle outer duct 32 communicates with the other of the internal spaces of the duct body 30 divided by the center wall 33.

(flow divider)

As shown in fig. 2, the flow dividing device 4 is disposed between the dehumidifying device 2 and the passage 3. The flow divider 4 includes a rotating body 40, a coupling body 41, and a drive motor 39.

The rotary body 40 rotates about an axis C along the flow direction of the air flowing from the dehumidifying apparatus 2 into the duct 3. In the following description, a direction along the axis C of the rotating body 40 is simply referred to as an axial direction, a direction perpendicular to the axis C is referred to as a radial direction, and a direction around the axis C is referred to as a circumferential direction.

As shown in fig. 5, the rotating body 40 is formed in a disc shape centered on the axis C. The rotating body 40 has a shaft insertion hole 42, a through hole 43, and an extending portion 44 (see fig. 6).

The shape of the rotating body 40 may be a fan shape.

The shaft insertion hole 42 is provided coaxially with the axis C. The shaft insertion hole 42 axially penetrates the rotating body 40. A rotating shaft 45 of a drive motor 39 described in detail below is inserted into the shaft insertion hole 42. The rotary shaft 45 and the rotary body 40 rotate integrally.

The through hole 43 is provided radially outward of the shaft insertion hole 42. The through hole 43 axially penetrates the rotary body 40. The through-hole 43 includes a first through-hole 43a and a second through-hole 43b symmetrically arranged with the axis C therebetween. The first through-hole 43a and the second through-hole 43b are formed in a fan shape having an angle of 90 ° with the axis C as a center when viewed from the axial direction. The first through hole 43a and the second through hole 43b are shifted in phase by 180 ° around the axis when viewed from the axial direction. A reinforcing rod 46 is provided in each through hole 43 at a position corresponding to the circumferential center portion. The reinforcing rods 46 extend in the radial direction. The reinforcing rod 46 connects the radial center portion of the rotating body 40 and the outer peripheral portion 40a of the rotating body 40.

It should be noted that the reinforcing bar 46 may be omitted.

As shown in fig. 6, the outer peripheral portion 40a of the rotating body 40 is located radially outward of the distal end portion 34a of the first projecting portion 34 of the duct 3. The outer peripheral portion 40a of the rotating body 40 is provided on the axial direction dehumidifier 2 side of the first protruding portion 34. The outer peripheral portion 40a of the rotating body 40 overlaps the first protruding portion 34 of the passage 3 in the axial direction.

The extension 44 extends from the rotating body 40 toward the axial passage 3 side. The extending portion 44 extends along the front end portion 34a of the first projecting portion 34. The extending portion 44 is located radially inward of the first projecting portion 34. The front end 44a of the extension 44 is aligned with the surface 34b of the first projection 34 facing the channel 3 side. The extending portion 44 is formed over the entire circumference in the circumferential direction.

The rotating body 40 thus formed is switched to a first state and a second state in which air flows through a predetermined flow path according to the rotation. In the first state, the rotating body 40 causes the first internal flow passage 16 to communicate with the vehicle interior passage 31, and causes the second internal flow passage 17 to communicate with the vehicle exterior passage 32. In the second state, the rotating body 40 causes the first inner flow passage 16 to communicate with the vehicle exterior side duct 32, and causes the second inner flow passage 17 to communicate with the vehicle interior side duct 31.

Returning to fig. 2, coupling body 41 is disposed on the side of dehumidifying apparatus 2 with respect to rotating body 40. The coupling body 41 couples the rotating body 40 and the dehumidifier 2. The connecting body 41 is formed in a frame shape with the axis C as the center. The end of the coupling body 41 on the dehumidification device 2 side in the axial direction is formed in a rectangular frame shape having the same size as the case 11. The axial end of the coupling body 41 on the dehumidification device 2 side is coupled to the casing 11 by a member such as a clip or a screw, not shown. The end of the connecting body 41 on the channel 3 side in the axial direction is formed into a circular frame shape having the same size as the outer diameter of the channel body 30. The end of the coupling body 41 on the channel 3 side in the axial direction is coupled to the channel body 30 by a member such as a clip or a screw, not shown.

The connecting body 41 has a partition 47 and a second projection 48 (see fig. 6).

As shown in fig. 5, the partition wall 47 is disposed between the first internal flow passage 16 and the second internal flow passage 17 when viewed from the axial direction. The partition wall 47 is formed continuously with the partition wall 15 of the adsorption part 5. The partition 47 divides the inside of the connecting body 41 into 2 spaces. One of the spaces divided by the partition wall 47 communicates with the first internal flow passage 16. The other space divided by the partition wall 47 communicates with the second internal flow passage 17.

As shown in fig. 6, the second protrusion 48 protrudes radially inward from the end of the coupling body 41 on the channel 3 side in the axial direction. The second protrusion 48 is formed integrally with the connecting body 41. The second protruding portion 48 is formed over the entire circumference in the circumferential direction. The second protrusion 48 is provided on the axial direction of the rotator 40 on the side of the dehumidifier 2. The distal end portion 48a of the second protrusion 48 is located radially inward of the outer peripheral portion 40a of the rotor 40. Thereby, the rotating body 40 is disposed between the first protruding portion 34 and the second protruding portion 48. The first projecting portion 34, the second projecting portion 48, the extending portion 44 of the rotating body 40, and the gap S of the outer peripheral portion 40a of the rotating body 40 have a labyrinth shape in a cross-sectional view perpendicular to the radial direction.

The drive motor 39 is disposed between the vehicle interior tunnel 31 and the vehicle exterior tunnel 32 and outside the tunnel 3. The drive motor 39 is fixed to the bottom 36 of the channel body 30. The drive motor 39 rotates the rotary body 40. The drive motor 39 is, for example, a stepping motor that can be stopped at a predetermined rotation angle. The rotary shaft 45 of the drive motor 39 extends through the passage through hole 37 formed in the passage main body 30 to the rotary body 40. The end of the rotating shaft 45 on the rotating body 40 side is inserted into the shaft insertion hole 42 of the rotating body 40. Thereby, the rotary shaft 45 transmits the rotational force of the drive motor 39 to the rotary body 40.

(operation of the purification apparatus)

Next, the operation of the above-described purification apparatus 1 will be described.

Fig. 7 is a front view of the purification apparatus 1 showing the state of the rotating body 40 in the first state. Fig. 8 is a front view of the purification apparatus 1 showing the state of the rotating body 40 in the second state. Fig. 7 and 8 are front views of the axial duct 3.

First, the operation of the purification apparatus 1 in the first state in which the first internal flow path 16 communicates with the vehicle interior passage 31 will be described.

When the air introducing fan 22 of the dehumidifier 2 is driven, the air in the vehicle interior is sucked by the suction unit 6 and flows into the adsorption unit 5. Specifically, the air in the vehicle interior flows into the introduction pipe 21 from the suction port 23, and then is distributed at a predetermined ratio by the branch wall 24 and flows into the first internal flow passage 16 or the second internal flow passage 17, respectively.

In the first state, the first adsorbent 12 disposed in the first internal flow path 16 adsorbs the substance to be purified in the air, thereby discharging the purified air. On the other hand, in the first state, the second adsorbent 13 disposed in the second internal flow passage 17 desorbs the purification target substance adhered to the second adsorbent 13, thereby discharging the regeneration air containing the purification target substance. At this time, the heating device 14b provided on the upstream side of the second internal flow path 17 is driven, and the heated air flows into the second internal flow path 17. Thereby, the heated air flows through the second adsorbent 13, and the substances to be purified of the second adsorbent 13 are desorbed.

As shown in fig. 7, in the first state, the drive motor 39 stops the rotating body 40 at a predetermined angle so that the rotating body 40 can communicate the first internal flow path 16 with the vehicle interior duct 31 and the second internal flow path 17 with the vehicle exterior duct 32. Specifically, at this time, the first through hole 43a of the rotating body 40 is located at a portion where two regions overlap each other in the axial direction, one region being a region on the first internal flow path 16 side with respect to the partition wall 15 of the casing 11, and the other region being a region on the vehicle interior side duct 31 side with respect to the center wall 33 of the duct 3. Thus, the purified air purified by flowing through the first internal flow path 16 passes through the coupling body 41 and the first through hole 43a of the rotating body 40 and is discharged from the vehicle interior duct 31 into the vehicle interior.

On the other hand, at this time, the second through hole 43b of the rotating body 40 is located at a portion where two areas overlap each other in the axial direction, one area being a region on the second internal flow path 17 side with respect to the partition wall 15 of the casing 11, and the other area being a region on the vehicle exterior side duct 32 side with respect to the center wall 33 of the duct 3. Thereby, the regeneration air regenerated by flowing through the second internal flow passage 17 passes through the coupling body 41 and the second through hole 43b of the rotating body 40, and is discharged from the vehicle exterior duct 32 to the outside of the vehicle.

Next, the operation of the purification apparatus 1 in the second state in which the second internal flow passage 17 communicates with the vehicle interior passage 31 will be described.

In the first state, the first adsorbent 12 may be saturated when the adsorption amount of the substance to be purified by the first adsorbent 12 exceeds a predetermined value. In this case, the drive motor 39 is switched from the first state to the second state (the state of fig. 8) by the rotation of the rotating body 40. In the present embodiment, the drive motor 39 is switched from the first state to the second state by rotating the rotating body 40 by about 90 °. The second adsorbent 13 completes regeneration before switching from the first state to the second state, and is in a state capable of adsorbing the substance to be purified.

In the second state, the second adsorbent 13 disposed in the second internal flow path 17 adsorbs the substance to be purified in the air, thereby discharging the purified air. In the second state, the first adsorbent 12 disposed in the first internal flow path 16 desorbs the substance to be purified attached to the first adsorbent 12, thereby discharging the regeneration air containing the substance to be purified. At this time, the heating device 14a provided on the upstream side of the first internal flow path 16 is driven, and the heated air flows into the first internal flow path 16. Thereby, the heated air flows through the first adsorbent 12, and the substances to be purified in the first adsorbent 12 are desorbed.

As shown in fig. 8, in the second state, the drive motor 39 stops the rotating body 40 at a predetermined angle so that the rotating body 40 can communicate the first internal flow path 16 with the vehicle exterior path 32 and the second internal flow path 17 with the vehicle interior path 31. Specifically, at this time, the first through hole 43a of the rotating body 40 is located at a portion where two regions overlap each other in the axial direction, one region being a region on the second internal flow path 17 side with respect to the partition wall 15 of the casing 11, and the other region being a region on the vehicle interior side duct 31 side with respect to the center wall 33 of the duct 3. Thus, the purified air purified by flowing through the second internal flow passage 17 is discharged from the vehicle interior duct 31 into the vehicle interior through the coupling body 41 and the first through hole 43a of the rotating body 40.

On the other hand, at this time, the second through hole 43b of the rotating body 40 is located at a portion where two areas overlap each other in the axial direction, one area being a region on the first internal flow path 16 side with respect to the partition wall 15 of the housing 11, and the other area being a region on the vehicle exterior side duct 32 side with respect to the center wall 33 of the duct 3. Thereby, the regeneration air regenerated by flowing through the first internal flow path 16 passes through the coupling body 41 and the second through hole 43b of the rotating body 40, and is discharged from the vehicle exterior duct 32 to the outside of the vehicle.

When the second adsorbent 13 is saturated in the second state, the drive motor 39 rotates the rotating body 40 again, thereby switching from the second state to the first state. In this way, the first state and the second state are switched to alternately adsorb and regenerate the first adsorbent 12 and the second adsorbent 13. This enables the air in the vehicle interior to be continuously purified (dehumidified).

The drive motor 39, the

heating devices

14a and 14b, and the air intake fan 22 are connected to a control unit, not shown. The control unit switches the rotation angle of the drive motor 39 in accordance with the switching between the first state and the second state; determination of which

heating device

14a, 14b is driven; and the output of the air introducing fan 22. The timing of switching between the first state and the second state may be, for example, when the operating time is measured and the operating time is equal to or greater than a predetermined value. Various sensors such as a temperature sensor and a humidity sensor may be separately provided, and switching may be performed according to the output result of the sensors.

(action, Effect)

Next, the operation and effect of the above-described purification apparatus 1 will be described.

According to the purification apparatus 1 of the present embodiment, the rotating body 40 can switch between the first state in which the first adsorbent 12 adsorbs the purification target substance in the air and the second state in which the second adsorbent 13 adsorbs the purification target substance in the air. While the first adsorbent 12 is adsorbing in the first state, the second adsorbent 13 is regenerated. While the second adsorbent 13 is adsorbing in the second state, the first adsorbent 12 is regenerated. Since the first adsorbent 12 and the second adsorbent 13 can be alternately adsorbed and regenerated in this way, the air can be continuously purified (dehumidified) by switching the rotation of the rotating body 40. Since the rotating body 40 is connected to the dehumidifying apparatus 2 via the connecting body 41, the provision of the connecting body 41 can suppress mixing of the adsorption air (purified air) on the adsorption side and the regeneration air on the regeneration side during rotation of the rotating body 40. This can suppress the reduction in passenger comfort and the generation of window fogging due to the inflow of the regeneration air into the clean air and the discharge of the regeneration air into the vehicle interior.

Since the flow diversion device 4 has the coupling body 41, the rotating body 40 and the dehumidifying device 2 can be reliably coupled via the coupling body 41 regardless of the shape of the dehumidifying device 2 and the layout of the adsorbent. This enables the air flowing from dehumidifier 2 into coupling 41 to be reliably guided to rotary body 40. Further, since the coupling body 41 can have a simple structure, the entire purification apparatus 1 can guide air to the rotating body 40 through the coupling body 41 without increasing the size.

Therefore, the purification apparatus 1 can be provided which is small in size and suppresses the inflow of the regeneration air on the regeneration side to the adsorption air (purified air) on the adsorption side.

The rotating body 40 is disposed between the first projecting portion 34 and the second projecting portion 48, and the first projecting portion 34 and the second projecting portion 48 project radially inward of the outer peripheral portion 40a of the rotating body 40. Thereby, the gap S formed between the outer peripheral portion 40a of the rotating body 40 and the first and second protruding

portions

34 and 48 is bent a plurality of times. Accordingly, as compared with the case where the gap S is formed in the axial direction, air can be suppressed from leaking from the gap S between the outer peripheral portion 40a of the rotating body 40 and the first and second protruding

portions

34 and 48. Therefore, the inflow of the regeneration air to the clean air side from the gap S between the outer peripheral portion 40a of the rotating body 40 and the first and

second protrusions

34 and 48 can be suppressed.

Since the rotating body 40 has the extending portion 44, the gap S of the outer peripheral portion 40a of the rotating body 40 can be formed into a labyrinth shape by the extending portion 44, the first protruding portion 34, and the second protruding portion 48. This can further suppress the inflow of air from the gap S in the outer peripheral portion 40a of the rotating body 40. This makes it possible to provide the high-performance purification apparatus 1 in which the inflow of the regeneration air from the gap S in the outer peripheral portion 40a of the rotating body 40 to the purified air side is further suppressed.

The connecting body 41 has a partition 47 disposed between the first internal flow passage 16 and the second internal flow passage 17. Accordingly, the partition 47 can guide the air flowing into the coupling body 41 from the first internal flow passage 16 and the second internal flow passage 17 of the dehumidifier 2 to the rotating body 40 in a separated state. This can suppress mixing of the purified air on the adsorption side and the regeneration air on the regeneration side in the connecting body 41.

The drive motor 39 is disposed between the vehicle interior tunnel 31 and the vehicle exterior tunnel 32. This makes it possible to effectively utilize the dead space between the vehicle interior tunnel 31 and the vehicle exterior tunnel 32. This can reduce the size of the purification apparatus 1.

The rotating body 40 is formed of a single plate member and is formed to be rotatable in the circumferential direction. This enables the rotor 40 to have a simple structure. This makes it possible to reduce the size of the flow divider 4 and reduce the cost required for manufacturing the purification apparatus 1.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the scope of the present invention.

For example, the extending portion 44 of the rotating body 40 may be provided on the coupling body 41 side in the axial direction. That is, the extending portion 44 may extend along the distal end portion of the second protrusion 48 of the connecting body 41. The extending portions 44 may be provided along the respective distal end portions of the first projecting portion 34 and the second projecting portion 48 on both sides in the axial direction.

In addition, the extension portion 44 may be omitted. However, the configuration of the present embodiment in which the extending portion 44 is provided is advantageous in that the gap S has a complicated labyrinth shape due to the extending portion 44, the first projecting portion 34, and the second projecting portion 48, and air leakage from the outer peripheral portion 40a of the rotating body 40 can be further suppressed.

The shape of the through-hole 43 is not limited to the above shape.

The purification apparatus 1 can be used for applications other than vehicles, such as housing and facility applications.

In addition, the components in the above embodiments may be replaced with known components as appropriate, and the above embodiments may be combined as appropriate, without departing from the scope of the present invention.

Claims

1. A vehicle purification device is characterized by comprising:

a dehumidifier that distributes air flowing in to a first internal flow path and a second internal flow path, and that has a first adsorbent that adsorbs moisture in the air flowing into the first internal flow path and a second adsorbent that adsorbs moisture in the air flowing into the second internal flow path;

a duct having an interior duct for guiding the purified air discharged from one of the first interior flow path and the second interior flow path into the vehicle interior, and an exterior duct for guiding the regeneration air discharged from the other of the first interior flow path and the second interior flow path out of the vehicle interior; and

a flow dividing device disposed between the dehumidifying device and the passage,

the first adsorbent and the second adsorbent are capable of alternately adsorbing and regenerating,

the flow dividing device is provided with:

a rotating body that rotates around an axis along a flow direction of the air flowing from the dehumidifier to the duct, and switches between a first state in which the first internal flow path communicates with the vehicle interior duct and the second internal flow path communicates with the vehicle exterior duct and a second state in which the first internal flow path communicates with the vehicle exterior duct and the second internal flow path communicates with the vehicle interior duct, in accordance with the rotation; and

and a connecting body for connecting the rotating body and the dehumidifying device.

2. The purification apparatus for vehicle according to claim 1,

the passage has a first protruding portion protruding from an outer peripheral portion of the rotating body toward the axis,

the connecting body has a second projecting portion projecting from the outer peripheral portion of the rotating body toward the axis,

the rotating body is disposed between the first protruding portion and the second protruding portion.

3. The purification apparatus for vehicle according to claim 2,

the rotating body has an extension portion extending in an axial direction of the axis toward at least one of the passage side and the coupling body side,

the extending portion extends along a distal end portion of at least one of the first protruding portion and the second protruding portion.

4. The purification apparatus for vehicle according to claim 1,

the connecting body has a partition wall disposed between the first internal flow path and the second internal flow path when viewed in the axial direction of the axis.

5. The purification apparatus for vehicle according to claim 1,

the passage has a driving motor driving the rotating body,

the drive motor is disposed between the vehicle interior tunnel and the vehicle exterior tunnel and outside the tunnel.

6. The purification apparatus for vehicle according to claim 1,

the rotating body is formed of a single plate member having one of an annular shape and a fan shape, and is formed to be rotatable in a circumferential direction of the rotating body.