Ventilation device for air conditioner

Abstract

A ventilation device for an air conditioner is provided with: a holder having a ventilation path including a blow-out opening; and a fin shaft provided in the holder. The fin shaft includes: a shaft configured to be rotatable about an axis extending in a first direction; and fins that are provided so as to protrude from the outer peripheral surface of the shaft. The outer peripheral surface of the shaft is provided with a cutout portion. The direction in which the fin axes and the outlets are arranged is defined as a second direction, and the direction orthogonal to both the first direction and the second direction is defined as a third direction. The air passage has a first passage portion and a second passage portion located on one side and the other side of the axis in the third direction, respectively. The cutout portion is configured so as to be located in the first passage portion and the second passage portion when the fin is located on one side or the other side of the axis in the second direction.

Description

Technical Field

[0001] The invention relates to a ventilation device for air conditioning. Background Art

[0002] Automobiles are provided with air-conditioning ventilation devices that blow air-conditioning air into the vehicle interior (see, for example, Japanese Patent Application Laid-Open Nos. 2009-208496 and 2022-150682).

[0003] The ventilation structure described in Japanese Patent Application Laid-Open No. 2009-208496 includes an outer housing frame, a rotating shaft member rotatably supported within the outer housing frame, and a rotating fin member integrally formed with the rotating shaft member. The rotating fin member is tilted relative to the rotating shaft member. Rotation of the rotating shaft member changes the tilt of the rotating fin member, thereby altering the direction of air conditioning air.

[0004] The wind direction adjusting device described in Japanese Patent Application Laid-Open No. 2022-150682 includes a cylindrical outer casing, a plurality of intermediate movable fins, and a plurality of rear fins. The plurality of intermediate movable fins and the plurality of rear fins are provided inside the outer casing.

[0005] The plurality of intermediate movable fins are provided at intervals from each other in the Y direction, which is the surface direction of the opening surface of the air outlet.

[0006] The plurality of rear fins are provided on the opposite side of the air outlet with respect to the intermediate movable fins.

[0007] The arrangement direction of the intermediate movable fins and the air outlets is defined as an X direction, and a direction perpendicular to both the Y direction and the X direction is defined as a Z direction.

[0008] The intermediate movable fins are supported so as to be rotatable about an axis extending in the Z direction. The intermediate movable fins rotate to change the direction of the air conditioning air in the Y direction. A drive mechanism for rotating the intermediate movable fins is provided outside the outer shell in the Z direction.

[0009] The rear fins are supported so as to be rotatable about an axis extending in the Y direction. The rear fins rotate to change the direction of the air conditioning air in the Z direction. A drive mechanism for rotating the rear fins is provided outside the outer shell in the Y direction. Summary of the Invention

[0010] In the ventilation structure described in Japanese Patent Application Laid-Open No. 2009-208496, the rotating fin members are arranged around the entire circumference of the rotating shaft member. Therefore, the rotating fin members change the direction of the conditioned air regardless of their phase. Therefore, it is impossible to switch to a so-called neutral state, in which the direction of the conditioned air blown out of the air outlet remains unchanged.

[0011] In the wind direction adjusting device described in Japanese Patent Application Laid-Open No. 2022-150682, the drive mechanism for rotating the intermediate movable fins is provided outside the outer shell in the Z direction. Therefore, it is difficult to reduce the dimension of the air conditioner in the Z direction, that is, to achieve thinning.

[0012] The first embodiment of the present invention relates to a ventilation device for air conditioning, comprising: a holder having a ventilation path, the ventilation path including a blow-out port configured to blow out air for air conditioning; and a fin shaft, which is arranged in the holder, the fin shaft comprising: a shaft, which is configured to be rotatable around an axis extending in a first direction as a center, the first direction being the surface direction of the opening surface of the blow-out port; and fins, which are provided on the outer peripheral surface of the shaft and are inclined relative to a virtual plane orthogonal to the axis, and are provided on the outer peripheral surface of the shaft as a circumferential direction of the shaft. The notch portion of the part where the fin is not provided, when the direction perpendicular to the first direction and the arrangement direction of the fin axis and the blow-out port is set as the second direction, and the direction perpendicular to both the first direction and the second direction is set as the third direction, the ventilation path has a first passage portion and a second passage portion respectively located on one side and the other side of the axis in the third direction, and the notch portion is configured to be located in the first passage portion and the second passage portion when the fin is located on one side or the other side of the axis in the second direction.

[0013] 20. The air conditioner of claim 19, wherein the ventilator is configured to move air from one of the air conditioner's seats to the other of the air conditioner's seats, wherein the ventilator is configured to move air from one of the air conditioner's seats to the other of the air conditioner's seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded perspective view of an embodiment of a ventilation device for air conditioning.

[0015] Figure 2A 、 Figure 2B and Figure 2CThis is the main view of the downstream fin shaft.

[0016] Figure 3 This is a cross-sectional view of a ventilation device for air conditioning.

[0017] Figure 4 It is along Figure 3 Cross-sectional view of line 4-4.

[0018] Figure 5 This is a cross-sectional view of the ventilation device for air conditioning when the downstream fin shaft and the upstream fin are both in the neutral position.

[0019] Figure 6 yes Figure 5 A front view of a ventilation device for air conditioning in a state of.

[0020] Figure 7 This is a cross-sectional view of the ventilation device for air conditioning in a state where the upstream fin is in the first air direction control position and the first downstream fin is located in the first passage portion.

[0021] Figure 8 yes Figure 7 A front view of a ventilation device for air conditioning in a state of.

[0022] Figure 9 This is a cross-sectional view of the ventilation device for air conditioning in a state where the upstream fin is in the first air direction control position and the second downstream fin is located in the first passage portion.

[0023] Figure 10 yes Figure 9 A front view of a ventilation device for air conditioning in a state of.

[0024] Figure 11 This is a cross-sectional view of the ventilation device for air conditioning in a state where the upstream fin is in the second air direction control position and the downstream fin shaft is in the neutral position.

[0025] Figure 12 This is a cross-sectional view of the ventilation device for air conditioning with the upstream fin in the blocked position. DETAILED DESCRIPTION

[0026] Hereinafter, one embodiment of a ventilation device for air conditioning will be described with reference to the drawings.

[0027] like Figure 1 and Figure 3 As shown, the air-conditioning ventilation device includes a holder 10, a downstream fin shaft 20, an upstream fin shaft 30, a drive device 40, and a light emitting device 50. The air-conditioning ventilation device of this embodiment is installed on an instrument panel of a car.

[0028] Hereinafter, the description will be made with the width direction of the vehicle in which the air conditioning ventilation device is installed being referred to as the vehicle width direction X, the front-rear direction of the vehicle being referred to solely as the front-rear direction Y, and the up-down direction of the vehicle being referred to solely as the up-down direction Z. In this embodiment, the vehicle width direction X, the front-rear direction Y, and the up-down direction Z correspond to the first direction X, the second direction Y, and the third direction Z, respectively.

[0029] Next, each structure of the ventilation device for air conditioning according to this embodiment will be described in detail.

[0030] <Holder 10>

[0031] like Figure 3 and Figure 5 As shown, the holder 10 has a ventilation passage 17 including an air outlet 18 configured to blow out air for air conditioning.

[0032] like Figure 5 As shown, the holder 10 includes a lower wall 11 , an upper wall 12 located above the lower wall 11 , a pair of side walls 13 located on both sides in the vehicle width direction X and connecting the lower wall 11 and the upper wall 12 , and a baffle 16 .

[0033] The holder 10 includes a housing portion 14 having an air outlet 18 and a connection portion 15 connected to the upstream side of the housing portion 14 in the flow direction of air-conditioning air.

[0034] The housing portion 14 houses a downstream fin shaft 20 and upstream fins 32 to be described later.

[0035] The distance between the lower wall 11 and the upper wall 12 of the connecting portion 15 is smaller than that of the receiving portion 14. That is, the distance between the inner walls of the connecting portion 15 facing each other in the third direction Z is smaller than the distance between the inner walls of the receiving portion 14 facing each other in the third direction Z.

[0036] like Figure 1 As shown, the opening surface of the air outlet 18 is oriented along both the vehicle width direction X and the vertical direction Z. The air outlet 18 is flat and has a length in the vertical direction Z that is shorter than a length in the vehicle width direction X.

[0037] like Figure 5 As shown, the outlet 18 is located on a virtual straight line L passing through the center of the connecting portion 15 in the vertical direction Z and extending in the front-rear direction Y. The width of the outlet 18 in the vertical direction Z is smaller than the width of the connecting portion 15 in the vertical direction Z.

[0038] The lower wall 11 and the upper wall 12 constituting the connecting portion 15 extend in the front-rear direction Y.

[0039] The lower wall 11 constituting the housing portion 14 is curved so as to be positioned upward as it approaches the air outlet 18. The upper wall 12 constituting the housing portion 14 is curved so as to be positioned downward as it approaches the air outlet 18.

[0040] <Downstream fin shaft 20>

[0041] like Figures 1 to 3 and Figure 5 As shown, the downstream fin shaft 20 is disposed in the receiving portion 14 of the holder 10 .

[0042] like Figures 2A to 2C As shown, the downstream fin shaft 20 includes a downstream shaft 21 , first downstream fins 25 , and second downstream fins 26 .

[0043] like Figure 5 As shown, the downstream shaft 21 is configured to be rotatable about a first axis C1 extending in the vehicle width direction X.

[0044] like Figures 1 to 3 as well as Figure 5 As shown, the downstream shaft 21 has a cylindrical peripheral wall 22 extending in the first direction X.

[0045] like Figures 2A to 2C As shown, the first downstream fin 25 is inclined with respect to a virtual plane V that is provided protruding from the outer peripheral surface of the downstream shaft 21 and is perpendicular to the first axis C1.

[0046] The second downstream fin 26 is provided in a protruding manner on a portion of the outer peripheral surface of the downstream shaft 21 on the opposite side to the first downstream fin 25 across the downstream shaft 21 .

[0047] The inclination direction of the second downstream fin 26 with respect to the virtual plane V is the same as the inclination direction of the first downstream fin 25 with respect to the virtual plane V.

[0048] In the present embodiment, the plurality of first downstream fins 25 and the plurality of second downstream fins 26 are provided in the vehicle width direction X at intervals from each other.

[0049] The outer circumferential surface of the downstream shaft 21 is provided with a notch 27. This notch 27 is a portion of the downstream shaft 21 where the first downstream fin 25 and the second downstream fin 26 are not provided in the circumferential direction of the downstream shaft 21. The notch 27 is provided between the first downstream fin 25 and the second downstream fin 26 in the circumferential direction of the downstream shaft 21 in the outer circumferential surface of the downstream shaft 21.

[0050] like Figure 5 As shown, the ventilation passage 17 includes a first passage portion 17A and a second passage portion 17B located above and below the downstream shaft 21, respectively.

[0051] The notch portion 27 is configured to be located in the first passage portion 17A and the second passage portion 17B when the first downstream fin 25 and the second downstream fin 26 are located on the front side or the rear side of the downstream shaft 21 .

[0052] like Figure 1 、 Figure 3 and Figure 4 As shown, a downstream driven gear 28 is provided at one end of the downstream shaft 21. The downstream driven gear 28 is a spur gear.

[0053] <Upstream fin shaft 30>

[0054] like Figure 1 、 Figure 3 and Figure 5 As shown, the upstream fin shaft 30 is provided in front of the downstream fin shaft 20 in the holder 10. That is, the upstream fin shaft 30 is provided on the opposite side of the air outlet 18 relative to the downstream fin shaft 20 in the holder 10.

[0055] like Figure 5 As shown, the upstream fin shaft 30 includes an upstream shaft 31 having a second axis C2 extending in the first direction X, and upstream fins 32 configured to be rotatable around the second axis C2.

[0056] The upstream fin 32 includes a first surface 34 and a second surface 36 extending in the first direction X.

[0057] The upstream fin 32 includes a flat first upstream fin 33 and a second upstream fin 35. The first upstream fin 33 and the second upstream fin 35 each protrude radially from the upstream shaft 31. The angle formed by the first upstream fin 33 and the second upstream fin 35 is, for example, 60 degrees. Of the pair of main surfaces of the first upstream fin 33, the surface facing away from the second upstream fin 35 constitutes a first surface 34. Of the pair of main surfaces of the second upstream fin 35, the surface facing away from the first upstream fin 33 constitutes a second surface 36.

[0058] The upstream fin 32 is configured to be displaceable to a first airflow direction control position, a second airflow direction control position, a neutral position, and a blocking position.

[0059] like Figure 7 and Figure 9 As shown, the first airflow direction control position is a position where upstream fins 32 guide the flow of air-conditioning air relative to first passage portion 17A and restrict the flow of air-conditioning air through second passage portion 17B. In the first airflow direction control position, only second surface 36 of first surface 34 and second surface 36 extends obliquely with respect to second direction Y, extending from connection portion 15 toward first passage portion 17A.

[0060] like Figure 11As shown, the second airflow direction control position is a position where upstream fins 32 guide the flow of air-conditioning air toward second passage portion 17B, restricting the flow of air-conditioning air through first passage portion 17A. In the second airflow direction control position, only first surface 34 of first surface 34 and second surface 36 extends obliquely with respect to second direction Y, extending from connection portion 15 toward second passage portion 17B.

[0061] like Figure 5 As shown, the neutral position is a position where the upstream fin 32 guides the flow of air-conditioning air toward both the first passage portion 17A and the second passage portion 17B. In the neutral position, the second surface 36 extends obliquely with respect to the second direction Y from the connection portion 15 toward the first passage portion 17A, and the first surface 34 extends obliquely with respect to the second direction Y from the connection portion 15 toward the second passage portion 17B.

[0062] like Figure 12 As shown, the blocking position is a position where the ventilation path 17 is blocked by the upstream fin 32 .

[0063] like Figure 1 、 Figure 3 and Figure 4 As shown, an upstream driven gear 38 is provided at one end of the upstream shaft 31 .

[0064] like Figure 4 As shown, the upstream driven gear 38 has a plurality of slots 39 extending in the radial direction of the upstream driven gear 38. The plurality of slots 39 are arranged at equal intervals in the circumferential direction of the upstream driven gear 38. In the present embodiment, six slots 39 are arranged at equal intervals (60-degree intervals) in the circumferential direction of the upstream driven gear 38.

[0065] <Drive device 40>

[0066] like Figure 1 and Figure 3 As shown, the driving device 40 rotationally drives the downstream fin shaft 20 and the upstream fin shaft 30. The driving device 40 is provided outside the holder 10.

[0067] The drive device 40 is provided on one side of the downstream shaft 21 and the upstream shaft 31 in the vehicle width direction X.

[0068] The driving device 40 includes a motor 47 and a common driving gear 41 , which is driven to rotate by the motor 47 and transmits a rotational force to each of the downstream shaft 21 and the upstream shaft 31 .

[0069] like Figure 4 As shown, the drive gear 41 is driven to rotate about a third axis C3 extending in the vehicle width direction X.

[0070] The drive gear 41 includes a downstream driving gear 42 that meshes with the downstream driven gear 28 to continuously rotate the downstream driven gear 28. The downstream driving gear 42 is a spur gear centered on the third axis C3.

[0071] The drive gear 41 includes an upstream driving gear 43. Centered around the third axis C3, the upstream driving gear 43 has multiple pins 44 that fit into the slots 39 of the upstream driven gear 38, causing the upstream driven gear 38 to intermittently rotate. Together with the upstream driven gear 38, the upstream driving gear 43 constitutes a generator mechanism. In this embodiment, three pins 44 are arranged at equal intervals (120-degree intervals) around the circumference of the upstream driving gear 43.

[0072] It is constructed in the following manner, that is, if the driving gear 41 rotates, the downstream driven gear 28 is continuously rotated by the downstream prime mover gear 42, and the pin 44 of the upstream prime mover gear 43 enters the slot 39 of the upstream driven gear 38, causing the upstream driven gear 38 to intermittently rotate in units of 60 degrees.

[0073] In this embodiment, the driving gear 41 including the downstream driving gear 42 and the upstream driving gear 43 , the downstream driven gear 28 , and the upstream driven gear 38 constitute a linkage mechanism that links the rotational displacement of the downstream fin shaft 20 and the rotational displacement of the upstream fin 32 .

[0074] <Light-emitting device 50>

[0075] like Figure 1 and Figure 3 As shown, the light emitting device 50 includes: a plurality of light emitting display sections 51; and a light source 52 for causing the light emitting display sections 51 to emit light.

[0076] The light source 52 includes a light-emitting element such as an LED and is disposed outside the holder 10. The light source 52 is disposed outside the peripheral wall 22 of the downstream fin shaft 20. In this embodiment, the light source 52 is disposed on the opposite side of the drive device 40 in the vehicle width direction X. Furthermore, in this embodiment, the light source 52 is energized to emit light during operation of the air conditioning system.

[0077] The light emitting device 50 includes a light guide 53 that is provided inside the peripheral wall 22 and guides light emitted from the light source 52 into the interior of the peripheral wall 22 .

[0078] like Figure 1 and Figure 12 As shown, the light guide 53 has a lower wall 54 , an upper wall 55 , a front wall 56 and side walls 57 .

[0079] The lower wall 54 and the upper wall 55 are opposed to each other in the vertical direction Z and extend parallel to the vehicle width direction X. The front wall 56 connects the front end edge of the lower wall 54 and the front end edge of the upper wall 55 and extends in the vehicle width direction X. The side wall 57 is provided at one end of the light guide 53 on the opposite side of the light source 52 in the vehicle width direction X.

[0080] The light guide 53 opens rearward and toward the light source 52 .

[0081] The light-emitting indicator 51 is provided on the downstream shaft 21 and can be visually confirmed through the air outlet 18, indicating the direction of the conditioned air. The light-emitting indicator 51 is formed by light-transmitting portions 23a to 23d provided on the peripheral wall 22 of the downstream shaft 21 and transmitting light from the light guide 53. In this embodiment, the light-transmitting portions 23a to 23d are holes extending through the peripheral wall 22.

[0082] like Figures 2A to 2C As shown, the plurality of light-transmitting portions 23a to 23d are provided at different positions in the circumferential direction of the peripheral wall 22. In the present embodiment, the four light-transmitting portions 23a to 23d are provided at equal intervals, that is, at intervals of 90 degrees, in the circumferential direction.

[0083] like Figure 2A As shown, the light-transmitting portion 23a is provided in one of a pair of notches 27 located between the first downstream fin 25 and the second downstream fin 26. Specifically, the light-transmitting portion 23a is provided in the notch 27 that points toward the air outlet 18 when the first downstream fin 25 and the second downstream fin 26 are located in the first passage portion 17A and the second passage portion 17B, respectively. The light-transmitting portion 23a is provided on one side in the vehicle width direction X ( Figure 2A In addition, in this embodiment, a plurality of auxiliary holes 24 having a diameter smaller than that of the light-transmitting portion 23a are arranged in parallel with the light-transmitting portion 23a in the vehicle width direction X. The plurality of auxiliary holes 24 are arranged closer to the other side of the vehicle width direction X than the light-transmitting portion 23a ( Figure 2A The diameter of the auxiliary hole 24 is preferably less than or equal to 1 / 2 of the diameter of the light-transmitting portion 23a.

[0084] like Figure 2B As shown, the light-transmitting portion 23b is provided in the other of the pair of notches 27 located between the first downstream fin 25 and the second downstream fin 26. Specifically, the light-transmitting portion 23b is provided in the notch 27 that points toward the air outlet 18 when the first downstream fin 25 and the second downstream fin 26 are located in the second passage portion 17B and the first passage portion 17A, respectively. The light-transmitting portion 23b is provided on the other side in the vehicle width direction X ( Figure 2A In addition, in this embodiment, a plurality of auxiliary holes 24 having a diameter smaller than that of the light-transmitting portion 23b are arranged in parallel with the light-transmitting portion 23b in the vehicle width direction X. The plurality of auxiliary holes 24 are arranged on the side closer to the vehicle width direction X than the light-transmitting portion 23b ( Figure 2AThe diameter of the auxiliary hole 24 is preferably less than or equal to 1 / 2 of the diameter of the light-transmitting portion 23b.

[0085] like Figure 2C and Figure 12 As shown, the light-transmitting portion 23c is disposed between the first downstream fins 25. The light-transmitting portion 23c is disposed intermediate between the light-transmitting portion 23a and the light-transmitting portion 23b in the vehicle width direction X. Furthermore, in this embodiment, a plurality of auxiliary holes 24 having a smaller diameter than the light-transmitting portion 23c are disposed parallel to the light-transmitting portion 23c in the vehicle width direction X. The plurality of auxiliary holes 24 are disposed on both sides of the light-transmitting portion 23c in the vehicle width direction X. Preferably, the diameter of the auxiliary holes 24 is less than or equal to half the diameter of the light-transmitting portion 23c.

[0086] like Figure 12 As shown, the light-transmitting portion 23d is provided between the second downstream fins 26. The light-transmitting portion 23d is provided midway between the light-transmitting portion 23a and the light-transmitting portion 23b in the vehicle width direction X. Furthermore, in this embodiment, a plurality of auxiliary holes 24 having a smaller diameter than the light-transmitting portion 23d are provided in parallel with the light-transmitting portion 23d in the vehicle width direction X. The plurality of auxiliary holes 24 are provided on both sides of the light-transmitting portion 23d in the vehicle width direction X. Preferably, the diameter of the auxiliary holes 24 is less than or equal to half the diameter of the light-transmitting portion 23c.

[0087] The positions of the plurality of light transmitting portions 23 a to 23 d in the vehicle width direction X when facing the air outlet 18 in the front-rear direction Y correspond to the wind direction in the vehicle width direction X of the air-conditioning air blown out through the air outlet 18 .

[0088] Next, the relationship between the positions of the downstream fin shaft 20 and the upstream fin shaft 30 , the wind direction of the air-conditioning air blown out from the air outlet 18 , and the display form of the light-emitting display portion 51 will be described.

[0089] <When the upstream fin shaft 30 is in the neutral position and the downstream fin shaft 20 is in the neutral position>

[0090] like Figure 5 As shown, when air-conditioning air flows from connecting portion 15 into housing portion 14, it flows into first passage portion 17A and second passage portion 17B along second surface 36 and first surface 34 of upstream fin 32, respectively. Furthermore, the air-conditioning air is blown out from outlet 18 without changing its direction as it flows through first passage portion 17A and second passage portion 17B.

[0091] In addition, if Figure 6 As shown, the light-emitting display portion 51 that is visually recognized through the air outlet 18 is located at the center of the air outlet 18 in the vehicle width direction X.

[0092] <When the upstream fin shaft 30 is in the first airflow direction control position and the first downstream fin 25 of the downstream fin shaft 20 is in the first passage portion 17A>

[0093] like Figure 7 As shown, when air-conditioning air flows from the connection portion 15 into the housing portion 14, it flows into the first passage portion 17A along the first surface 34 of the upstream fin 32. Furthermore, the air-conditioning air flowing in the first passage portion 17A flows along the first downstream fin 25 when passing through the first downstream fin 25.

[0094] Therefore, if Figure 8 As shown, the air-conditioning air blown out through the air outlet 18 is directed toward one side of the first direction X ( Figure 8 The right side of the switch is changed, and the air-conditioning air is blown downward.

[0095] In addition, the light-emitting display portion 51 that is visually recognized through the air outlet 18 is located on one side of the air outlet 18 in the vehicle width direction X ( Figure 8 on the right side of the ).

[0096] <When the upstream fin shaft 30 is in the second airflow direction control position and the first downstream fin 25 of the downstream fin shaft 20 is in the first passage portion 17A>

[0097] like Figure 7 As shown by the two-dot chain line in FIG, the air-conditioning air receives a change in wind direction by the second downstream fin 26 when flowing through the second passage portion 17B. As a result, the wind direction of the air-conditioning air blown out through the blow-out port 18 is toward one side of the first direction X ( Figure 8 The air conditioning air is blown upward.

[0098] <When the upstream fin shaft 30 is in the first airflow direction control position and the second downstream fin 26 of the downstream fin shaft 20 is in the first passage portion 17A>

[0099] like Figure 9 As shown, when air-conditioning air flows from the connection portion 15 into the housing portion 14, it flows into the first passage portion 17A along the first surface 34 of the upstream fin 32. Furthermore, the air-conditioning air flowing in the first passage portion 17A flows along the second downstream fin 26 when passing through the second downstream fin 26.

[0100] Therefore, if Figure 10 As shown, the air-conditioning air blown out through the air outlet 18 is directed toward the other side of the first direction X ( Figure 10 The left side of the switch is changed, and the air-conditioning air is blown downward.

[0101] In addition, the light-emitting display portion 51 that is visually recognized through the air outlet 18 is located on one side of the air outlet 18 in the vehicle width direction X ( Figure 10on the left side of the ).

[0102] <When the upstream fin shaft 30 is in the second airflow direction control position and the second downstream fin 26 of the downstream fin shaft 20 is in the first passage portion 17A>

[0103] like Figure 9 As shown by the two-dot chain line, when the air-conditioning air flows through the second passage portion 17B, the wind direction is changed by the first downstream fin 25. As a result, the wind direction of the air-conditioning air blown out through the blow-out port 18 is directed to the other side of the first direction X ( Figure 8 The left side of the switch is changed, and the air-conditioning air is blown upward.

[0104] <When the upstream fin shaft 30 is in the second airflow direction control position and the downstream fin shaft 20 is in the neutral position>

[0105] like Figure 11 As shown, when air-conditioning air flows from the connection portion 15 into the housing portion 14, it flows into the second passage portion 17B along the second surface 36 of the upstream fin 32. Furthermore, when the air-conditioning air flows through the second passage portion 17B, it is blown upward from the air outlet 18 without receiving a change in wind direction.

[0106] In addition, if Figure 11 As indicated by the two-dot chain line, when the upstream fin shaft 30 is in the first airflow direction control position, the air-conditioning air flows through the first passage portion 17A without receiving a change in airflow direction and is blown downward from the air outlet 18 .

[0107] <When the upstream fin shaft 30 is in the blocking position and the downstream fin shaft 20 is in the neutral position>

[0108] like Figure 12 As shown, the upstream fins 32 block the ventilation passage 17 and prevent the inflow of air-conditioning air from the connection portion 15 into the storage portion 14. As a result, the air-conditioning air is no longer blown out through the air outlet 18.

[0109] Next, the first effect of this embodiment will be described.

[0110] like Figure 7 As shown, when the first downstream fin 25 is located in the first passage portion 17A, the air-conditioning air flowing through the first passage portion 17A flows along the first downstream fin 25 when passing through the first downstream fin 25. As a result, the direction of the air-conditioning air blown out through the air outlet 18 is changed to one side in the first direction X.

[0111] In addition, if Figure 9As shown by the two-dot chain line, when the first downstream fin 25 is located in the second passage portion 17B, the air-conditioning air flowing through the second passage portion 17B flows along the first downstream fin 25 as it passes through the first downstream fin 25. Here, the inclination direction of the first downstream fin 25 when located in the second passage portion 17B is opposite to the inclination direction of the first downstream fin 25 when located in the first passage portion 17A. As a result, the direction of the air-conditioning air blown out of the air outlet 18 is changed to the other side of the first direction X.

[0112] Furthermore, a notch portion 27 is provided on the outer peripheral surface of the downstream shaft 21 , where no first downstream fin 25 is provided in the circumferential direction of the downstream shaft 21 .

[0113] like Figure 5 As shown, when the first downstream fin 25 is located on one side or the other side of the downstream axis 21 in the second direction Y, the notch 27 is located in the first passage portion 17A and the second passage portion 17B. In this case, the air-conditioning air flowing through the first passage portion 17A and the second passage portion 17B is blown out from the air outlet 18 without changing the wind direction. Furthermore, in the neutral position of the downstream fin shaft 20, the first downstream fin 25 is not located in the first passage portion 17A or the second passage portion 17B, thereby suppressing any increase in pressure loss.

[0114] Next, the second effect of this embodiment will be described.

[0115] The drive device 40 that rotationally drives the downstream shaft 21 and the upstream shaft 31 is provided on one side of the downstream shaft 21 and the upstream shaft 31 in the first direction X. Therefore, the size of the air-conditioning ventilator in the third direction Z can be suppressed from increasing due to the drive device 40 .

[0116] Next, the effects of this embodiment will be described.

[0117] (1-1) Since the first effect of the above embodiment is achieved, it is possible to switch between a state in which the wind direction of the air-conditioning air blown out from the air outlet 18 is changed and a state in which the wind direction is not changed.

[0118] (1-2) When the first downstream fin 25 is located in the first passage portion 17A, the second downstream fin 26 is located in the second passage portion 17B. Therefore, the air-conditioning air flowing through the first passage portion 17A flows along the first downstream fin 25 when passing through it, and the air-conditioning air flowing through the second passage portion 17B flows along the second downstream fin 26 when passing through it. Here, the second downstream fin 26 is tilted in the same direction as the first downstream fin 25 with respect to the virtual plane V. As a result, the direction of the air-conditioning air blown out through the air outlet 18 is changed toward the first direction X.

[0119] Furthermore, when the second downstream fin 26 is located in the first passage portion 17A, the first downstream fin 25 is located in the second passage portion 17B. Therefore, the air-conditioning air flowing through the first passage portion 17A flows along the second downstream fin 26 when passing through it, and the air-conditioning air flowing through the second passage portion 17B flows along the first downstream fin 25 when passing through it. The inclination direction of the second downstream fin 26 when located in the first passage portion 17A is opposite to the inclination direction of the second downstream fin 26 when located in the second passage portion 17B. As a result, the direction of the air-conditioning air blown out of the air outlet 18 is changed to the other side of the first direction X.

[0120] Therefore, the air-conditioning air flowing through the first passage portion 17A and the air-conditioning air flowing through the second passage portion 17B can change its direction to either side of the first direction X.

[0121] (1-3) By displacing the upstream fin 32 to any one of the first airflow direction control position, the second airflow direction control position, and the neutral position, the passage portion through which the air-conditioning air flows in the first passage portion 17A and the second passage portion 17B can be changed.

[0122] However, by providing the downstream fin shaft 20 in the holder 10 , there is a possibility that the air-conditioning air collides with the downstream shaft 21 , thereby increasing the pressure loss.

[0123] In this regard, according to the above configuration, the upstream fins 32 guide the flow of the air-conditioning air toward either or both of the first passage portion 17A and the second passage portion 17B. This prevents the air-conditioning air from colliding with the downstream shaft 21, thereby suppressing an increase in pressure loss.

[0124] (1-4) The rotational displacement of the downstream fin shaft 20 and the rotational displacement of the upstream fin 32 can be linked by the driving gear 41 constituting the linkage mechanism, thereby simplifying the structure of the ventilation device for air conditioning.

[0125] (1-5) The upstream fin 32 is rotated about the second axis C2 extending in the first direction X, so that the upstream fin 32 can be displaced to the first airflow direction control position, the second airflow direction control position, and the neutral position.

[0126] (1-6) The upstream fins 32 block the ventilation passage 17 , thereby preventing the air-conditioning air from being blown out through the air outlet 18 .

[0127] (2-1) Since the second effect of the above embodiment is achieved, the air conditioner ventilation device can be made thinner.

[0128] (2-2) The downstream shaft 21 and the upstream shaft 31 can be rotationally driven by the common drive gear 41. This allows the rotational displacement of the downstream fin shaft 20 to be linked to the rotational displacement of the upstream fin shaft 30. Consequently, the number of components of the drive device 40 can be reduced.

[0129] (3-1) When the light-emitting display portion 51 provided on the downstream shaft 21 is illuminated, the user can visually recognize the direction of the conditioned air by viewing the light-emitting display portion 51 through the air outlet 18. Therefore, even when the width of the air outlet 18 is small, the portion displaying the direction of the conditioned air is more easily visible.

[0130] (3-2) Light emitted from the light source 52 is guided into the interior of the peripheral wall 22 by the light guide 53, and then radiated toward the exterior of the downstream shaft 21 through the light-transmitting portions 23a to 23d provided on the peripheral wall 22. Therefore, even though the light source 52 is provided outside the downstream fin shaft 20, the light-transmitting portions 23a to 23d provided on the peripheral wall 22 of the downstream shaft 21 can also emit light.

[0131] (3-3) The user can intuitively grasp the direction of the air-conditioning air in the first direction X based on the positions of the light-transmitting portions 23 a to 23 d in the first direction X visually confirmed through the air outlet 18 .

[0132] (3-4) The light-transmitting portions 23a to 23d are holes that penetrate the peripheral wall 22. Therefore, the light-transmitting portions 23a to 23d can be realized with a simple structure.

[0133] Modifications

[0134] This embodiment can be implemented with modifications as follows: This embodiment and the following modifications can be implemented in combination with each other within the scope of technical inconsistency.

[0135] The auxiliary hole 24 may also be omitted.

[0136] The light-transmitting portions 23c and 23d may be omitted.

[0137] The light-transmitting portions 23a to 23d are not limited to holes penetrating the peripheral wall 22. The light-transmitting portions 23a to 23d can be embodied by forming a portion of the peripheral wall 22 from a material that transmits visible light.

[0138] In the above embodiment, the plurality of light transmitting portions 23a to 23d may be provided at the same position in the vehicle width direction X. In this case, the light transmitting portions 23a and 23b may be shaped like arrows indicating the direction of air conditioning air.

[0139] The light source may be arranged inside the peripheral wall 22. In this case, the light guide 53 may be omitted.

[0140] In the above embodiment, the light emitting display portion 51 is provided on the downstream shaft 21 , but may be provided on the downstream fins (the first downstream fin 25 and the second downstream fin 26 ) in addition to or instead of the downstream shaft 21 .

[0141] The light emitting device 50 may also be omitted.

[0142] The number of the slots 39 of the upstream driven gear 38 and the number of the pins 44 of the upstream driving gear 43 may be changed as appropriate.

[0143] The upstream fin 32 may be configured to be unable to be displaced to the blocking position.

[0144] The drive device 40 is not limited to a structure having the drive gear 41. Alternatively, for example, the downstream fin shaft 20 and the upstream fin shaft 30 may be driven by separate motors. In other words, the linkage mechanism that links the rotational displacement of the downstream fin shaft 20 with the rotational displacement of the upstream fins 32 may be omitted.

[0145] The upstream fin 32 may be omitted. In this case, the first downstream fin 25 and the second downstream fin 26 function as the first fin and the second fin, respectively.

[0146] The second downstream fin 26 may be omitted.

[0147] The notch portion 27 may be omitted. That is, the downstream fin may be provided over the entire circumference of the outer peripheral surface of the downstream shaft 21 .

[0148] The air outlet 18 may be formed into a flat shape with a length in the vehicle width direction X being shorter than a length in the vertical direction Z. In this case, the structure of the air conditioning ventilation device may be modified so that the vertical direction Z is the first direction and the vehicle width direction X is the third direction.

[0149] The ventilation device for air conditioning is not limited to being installed on the instrument panel, but can also be installed on the center console, ceiling, etc.

Claims

1. A ventilation device for air conditioning, wherein: The ventilation device for air conditioning comprises: a holder having a ventilation passage including an outlet configured to blow out air for air conditioning; and a fin shaft disposed in the retaining member, The fin shaft has: a shaft configured to be rotatable about an axis extending in a first direction, the first direction being a plane direction of an opening plane of the air outlet; and The fin is protruding from the outer peripheral surface of the shaft and is inclined relative to a virtual plane orthogonal to the axis. A notch portion is provided on the outer peripheral surface of the shaft, which is a portion where the fin is not provided in the circumferential direction of the shaft. When a direction perpendicular to the first direction and the arrangement direction of the fin shafts and the air outlets is defined as a second direction, and a direction perpendicular to both the first direction and the second direction is defined as a third direction, The ventilation passage includes a first passage portion and a second passage portion, which are respectively located on one side and the other side of the axis in the third direction. The notch is configured to be located in the first passage portion and the second passage portion when the fin is located on one side or the other side of the axis in the second direction.

2. The ventilation device for air conditioning according to claim 1, wherein: When the fin is a first fin, the fin shaft has a second fin that is protruding from a portion of the outer peripheral surface of the shaft on the opposite side of the first fin across the shaft. The second fin has an inclination direction with respect to the virtual plane that is the same as that of the first fin.

3. The ventilation device for air conditioning according to claim 1, wherein: When the fin shaft, the shaft, and the fin are respectively set as the downstream fin shaft, the downstream shaft, and the downstream fin, An upstream fin is provided in the holder on the opposite side of the air outlet relative to the downstream fin shaft and is configured to be rotatable around an axis extending in the first direction. The upstream fin is configured to be displaceable to the following positions: a first airflow direction control position, at which the flow of the air-conditioning air is guided relative to the first passage portion and the flow of the air-conditioning air in the second passage portion is restricted; a second airflow direction control position, at which the flow of the air-conditioning air is guided relative to the second passage portion and the flow of the air-conditioning air in the first passage portion is restricted; as well as A neutral position in which the flow of the air-conditioning air is guided to both the first passage portion and the second passage portion.

4. The ventilation device for air conditioning according to claim 3, wherein: The ventilation device for air conditioning includes a linkage mechanism that links the rotational displacement of the downstream fin shaft and the rotational displacement of the upstream fin.

5. The ventilation device for air conditioning according to claim 3 or 4, wherein: The upstream fin has a first surface and a second surface extending in the first direction, and is configured to be rotatable around an axis extending in the first direction. The retaining member has: a housing portion that houses the downstream fin shaft and the upstream fin and has the air outlet; and a connecting portion connected to the upstream side of the accommodating portion in the flow direction of the air conditioning air, The distance between the inner walls of the connecting portion facing the third direction is smaller than the distance between the inner walls of the receiving portion facing the third direction. At the first air direction control position, only the first surface of the first surface and the second surface extends obliquely with respect to the second direction from the connecting portion toward the first passage portion. At the second wind direction control position, only the second surface of the first surface and the second surface extends obliquely with respect to the second direction from the connecting portion toward the second passage portion. In the neutral position, the second surface extends obliquely with respect to the second direction from the connecting portion toward the first passage portion, and the first surface extends obliquely with respect to the second direction from the connecting portion toward the second passage portion.

6. The ventilation device for air conditioning according to claim 3 or 4, wherein: The upstream fin is configured to be displaceable to a blocking position for blocking the ventilation path.

7. A ventilation device for air conditioning, wherein: The ventilation device for air conditioning comprises: a holder having a ventilation passage including an outlet configured to blow out air for air conditioning; a downstream fin shaft disposed in the retaining member; an upstream fin shaft provided in the holder on an opposite side of the air outlet relative to the downstream fin shaft; and Drive unit, The downstream fin shaft has: a downstream shaft configured to be rotatable about a first axis extending in a first direction, the first direction being a plane direction of an opening surface of the air outlet; and a downstream fin protruding from the outer peripheral surface of the downstream shaft and inclined relative to a virtual plane perpendicular to the first axis; The upstream fin shaft has: an upstream shaft configured to be rotatable about a second axis extending in the first direction; and an upstream fin extending along the first direction, The driving device is provided on one side of the downstream shaft and the upstream shaft in the first direction, and is configured to rotationally drive the downstream shaft and the upstream shaft.

8. The ventilation device for air conditioning according to claim 7, wherein: The driving device includes a common driving gear for transmitting rotational force to the downstream shaft and the upstream shaft.

9. The ventilation device for air conditioning according to claim 7, wherein: A notch portion is provided on the outer peripheral surface of the downstream shaft, which is a portion where the downstream fin is not provided in the circumferential direction of the downstream shaft. When a direction perpendicular to the first direction and the arrangement direction of the downstream fin shaft and the air outlet is defined as a second direction, and a direction perpendicular to both the first direction and the second direction is defined as a third direction, The ventilation passage includes a first passage portion and a second passage portion, which are respectively located on one side and the other side of the downstream axis in the third direction. The notch portion is configured to be located in the first passage portion and the second passage portion when the downstream fin is located on one side or the other side of the downstream axis in the second direction.

10. The ventilation device for air conditioning according to claim 9, wherein: When the downstream fin is set as the first downstream fin, The downstream fin shaft includes a second downstream fin protruding from a portion of the outer peripheral surface of the downstream shaft on the opposite side to the first downstream fin across the downstream shaft. The second downstream fin has an inclination direction with respect to the virtual plane that is the same as that of the first downstream fin.

11. The ventilation device for air conditioning according to claim 9 or 10, wherein: The upstream fin is configured to be displaceable to the following positions: a first airflow direction control position, at which the flow of the air-conditioning air is guided relative to the first passage portion and the flow of the air-conditioning air in the second passage portion is restricted; a second airflow direction control position, at which the flow of the air-conditioning air is guided relative to the second passage portion and the flow of the air-conditioning air in the first passage portion is restricted; as well as A neutral position in which the flow of the air-conditioning air is guided to both the first passage portion and the second passage portion.

12. The ventilation device for air conditioning according to claim 11, wherein: The upstream fin has a first surface and a second surface extending along the first direction, The retaining member has: a housing portion that houses the downstream fin shaft and the upstream fin and has the air outlet; and a connecting portion connected to the upstream side of the accommodating portion in the flow direction of the air conditioning air, The distance between the inner walls of the connecting portion facing each other in the third direction is smaller than the distance between the inner walls of the receiving portion facing each other in the third direction. At the first air direction control position, only the first surface of the first surface and the second surface extends obliquely with respect to the second direction from the connecting portion toward the first passage portion. At the second wind direction control position, only the second surface of the first surface and the second surface extends obliquely with respect to the second direction from the connecting portion toward the second passage portion. In the neutral position, the second surface extends obliquely with respect to the second direction from the connecting portion toward the first passage portion, and the first surface extends obliquely with respect to the second direction from the connecting portion toward the second passage portion.

13. The ventilation device for air conditioning according to claim 11, wherein: The upstream fin is configured to be displaceable to a blocking position for blocking the ventilation path.

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